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-rw-r--r--drivers/net/tulip/21142.c245
-rw-r--r--drivers/net/tulip/Kconfig166
-rw-r--r--drivers/net/tulip/Makefile17
-rw-r--r--drivers/net/tulip/de2104x.c2187
-rw-r--r--drivers/net/tulip/de4x5.c5778
-rw-r--r--drivers/net/tulip/de4x5.h1029
-rw-r--r--drivers/net/tulip/dmfe.c2066
-rw-r--r--drivers/net/tulip/eeprom.c357
-rw-r--r--drivers/net/tulip/interrupt.c786
-rw-r--r--drivers/net/tulip/media.c562
-rw-r--r--drivers/net/tulip/pnic.c172
-rw-r--r--drivers/net/tulip/pnic2.c407
-rw-r--r--drivers/net/tulip/timer.c175
-rw-r--r--drivers/net/tulip/tulip.h493
-rw-r--r--drivers/net/tulip/tulip_core.c1861
-rw-r--r--drivers/net/tulip/winbond-840.c1716
-rw-r--r--drivers/net/tulip/xircom_cb.c1277
-rw-r--r--drivers/net/tulip/xircom_tulip_cb.c1748
18 files changed, 21042 insertions, 0 deletions
diff --git a/drivers/net/tulip/21142.c b/drivers/net/tulip/21142.c
new file mode 100644
index 000000000000..5db694c4eb02
--- /dev/null
+++ b/drivers/net/tulip/21142.c
@@ -0,0 +1,245 @@
+/*
+ drivers/net/tulip/21142.c
+
+ Maintained by Jeff Garzik <jgarzik@pobox.com>
+ Copyright 2000,2001 The Linux Kernel Team
+ Written/copyright 1994-2001 by Donald Becker.
+
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
+ for more information on this driver, or visit the project
+ Web page at http://sourceforge.net/projects/tulip/
+
+*/
+
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include "tulip.h"
+
+
+static u16 t21142_csr13[] = { 0x0001, 0x0009, 0x0009, 0x0000, 0x0001, };
+u16 t21142_csr14[] = { 0xFFFF, 0x0705, 0x0705, 0x0000, 0x7F3D, };
+static u16 t21142_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
+
+
+/* Handle the 21143 uniquely: do autoselect with NWay, not the EEPROM list
+ of available transceivers. */
+void t21142_timer(unsigned long data)
+{
+ struct net_device *dev = (struct net_device *)data;
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ int csr12 = ioread32(ioaddr + CSR12);
+ int next_tick = 60*HZ;
+ int new_csr6 = 0;
+
+ if (tulip_debug > 2)
+ printk(KERN_INFO"%s: 21143 negotiation status %8.8x, %s.\n",
+ dev->name, csr12, medianame[dev->if_port]);
+ if (tulip_media_cap[dev->if_port] & MediaIsMII) {
+ if (tulip_check_duplex(dev) < 0) {
+ netif_carrier_off(dev);
+ next_tick = 3*HZ;
+ } else {
+ netif_carrier_on(dev);
+ next_tick = 60*HZ;
+ }
+ } else if (tp->nwayset) {
+ /* Don't screw up a negotiated session! */
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: Using NWay-set %s media, csr12 %8.8x.\n",
+ dev->name, medianame[dev->if_port], csr12);
+ } else if (tp->medialock) {
+ ;
+ } else if (dev->if_port == 3) {
+ if (csr12 & 2) { /* No 100mbps link beat, revert to 10mbps. */
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: No 21143 100baseTx link beat, %8.8x, "
+ "trying NWay.\n", dev->name, csr12);
+ t21142_start_nway(dev);
+ next_tick = 3*HZ;
+ }
+ } else if ((csr12 & 0x7000) != 0x5000) {
+ /* Negotiation failed. Search media types. */
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: 21143 negotiation failed, status %8.8x.\n",
+ dev->name, csr12);
+ if (!(csr12 & 4)) { /* 10mbps link beat good. */
+ new_csr6 = 0x82420000;
+ dev->if_port = 0;
+ iowrite32(0, ioaddr + CSR13);
+ iowrite32(0x0003FFFF, ioaddr + CSR14);
+ iowrite16(t21142_csr15[dev->if_port], ioaddr + CSR15);
+ iowrite32(t21142_csr13[dev->if_port], ioaddr + CSR13);
+ } else {
+ /* Select 100mbps port to check for link beat. */
+ new_csr6 = 0x83860000;
+ dev->if_port = 3;
+ iowrite32(0, ioaddr + CSR13);
+ iowrite32(0x0003FF7F, ioaddr + CSR14);
+ iowrite16(8, ioaddr + CSR15);
+ iowrite32(1, ioaddr + CSR13);
+ }
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: Testing new 21143 media %s.\n",
+ dev->name, medianame[dev->if_port]);
+ if (new_csr6 != (tp->csr6 & ~0x00D5)) {
+ tp->csr6 &= 0x00D5;
+ tp->csr6 |= new_csr6;
+ iowrite32(0x0301, ioaddr + CSR12);
+ tulip_restart_rxtx(tp);
+ }
+ next_tick = 3*HZ;
+ }
+
+ /* mod_timer synchronizes us with potential add_timer calls
+ * from interrupts.
+ */
+ mod_timer(&tp->timer, RUN_AT(next_tick));
+}
+
+
+void t21142_start_nway(struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ int csr14 = ((tp->sym_advertise & 0x0780) << 9) |
+ ((tp->sym_advertise & 0x0020) << 1) | 0xffbf;
+
+ dev->if_port = 0;
+ tp->nway = tp->mediasense = 1;
+ tp->nwayset = tp->lpar = 0;
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Restarting 21143 autonegotiation, csr14=%8.8x.\n",
+ dev->name, csr14);
+ iowrite32(0x0001, ioaddr + CSR13);
+ udelay(100);
+ iowrite32(csr14, ioaddr + CSR14);
+ tp->csr6 = 0x82420000 | (tp->sym_advertise & 0x0040 ? FullDuplex : 0);
+ iowrite32(tp->csr6, ioaddr + CSR6);
+ if (tp->mtable && tp->mtable->csr15dir) {
+ iowrite32(tp->mtable->csr15dir, ioaddr + CSR15);
+ iowrite32(tp->mtable->csr15val, ioaddr + CSR15);
+ } else
+ iowrite16(0x0008, ioaddr + CSR15);
+ iowrite32(0x1301, ioaddr + CSR12); /* Trigger NWAY. */
+}
+
+
+
+void t21142_lnk_change(struct net_device *dev, int csr5)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ int csr12 = ioread32(ioaddr + CSR12);
+
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: 21143 link status interrupt %8.8x, CSR5 %x, "
+ "%8.8x.\n", dev->name, csr12, csr5, ioread32(ioaddr + CSR14));
+
+ /* If NWay finished and we have a negotiated partner capability. */
+ if (tp->nway && !tp->nwayset && (csr12 & 0x7000) == 0x5000) {
+ int setup_done = 0;
+ int negotiated = tp->sym_advertise & (csr12 >> 16);
+ tp->lpar = csr12 >> 16;
+ tp->nwayset = 1;
+ if (negotiated & 0x0100) dev->if_port = 5;
+ else if (negotiated & 0x0080) dev->if_port = 3;
+ else if (negotiated & 0x0040) dev->if_port = 4;
+ else if (negotiated & 0x0020) dev->if_port = 0;
+ else {
+ tp->nwayset = 0;
+ if ((csr12 & 2) == 0 && (tp->sym_advertise & 0x0180))
+ dev->if_port = 3;
+ }
+ tp->full_duplex = (tulip_media_cap[dev->if_port] & MediaAlwaysFD) ? 1:0;
+
+ if (tulip_debug > 1) {
+ if (tp->nwayset)
+ printk(KERN_INFO "%s: Switching to %s based on link "
+ "negotiation %4.4x & %4.4x = %4.4x.\n",
+ dev->name, medianame[dev->if_port], tp->sym_advertise,
+ tp->lpar, negotiated);
+ else
+ printk(KERN_INFO "%s: Autonegotiation failed, using %s,"
+ " link beat status %4.4x.\n",
+ dev->name, medianame[dev->if_port], csr12);
+ }
+
+ if (tp->mtable) {
+ int i;
+ for (i = 0; i < tp->mtable->leafcount; i++)
+ if (tp->mtable->mleaf[i].media == dev->if_port) {
+ int startup = ! ((tp->chip_id == DC21143 && tp->revision == 65));
+ tp->cur_index = i;
+ tulip_select_media(dev, startup);
+ setup_done = 1;
+ break;
+ }
+ }
+ if ( ! setup_done) {
+ tp->csr6 = (dev->if_port & 1 ? 0x838E0000 : 0x82420000) | (tp->csr6 & 0x20ff);
+ if (tp->full_duplex)
+ tp->csr6 |= 0x0200;
+ iowrite32(1, ioaddr + CSR13);
+ }
+#if 0 /* Restart shouldn't be needed. */
+ iowrite32(tp->csr6 | RxOn, ioaddr + CSR6);
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "%s: Restarting Tx and Rx, CSR5 is %8.8x.\n",
+ dev->name, ioread32(ioaddr + CSR5));
+#endif
+ tulip_start_rxtx(tp);
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "%s: Setting CSR6 %8.8x/%x CSR12 %8.8x.\n",
+ dev->name, tp->csr6, ioread32(ioaddr + CSR6),
+ ioread32(ioaddr + CSR12));
+ } else if ((tp->nwayset && (csr5 & 0x08000000)
+ && (dev->if_port == 3 || dev->if_port == 5)
+ && (csr12 & 2) == 2) ||
+ (tp->nway && (csr5 & (TPLnkFail)))) {
+ /* Link blew? Maybe restart NWay. */
+ del_timer_sync(&tp->timer);
+ t21142_start_nway(dev);
+ tp->timer.expires = RUN_AT(3*HZ);
+ add_timer(&tp->timer);
+ } else if (dev->if_port == 3 || dev->if_port == 5) {
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: 21143 %s link beat %s.\n",
+ dev->name, medianame[dev->if_port],
+ (csr12 & 2) ? "failed" : "good");
+ if ((csr12 & 2) && ! tp->medialock) {
+ del_timer_sync(&tp->timer);
+ t21142_start_nway(dev);
+ tp->timer.expires = RUN_AT(3*HZ);
+ add_timer(&tp->timer);
+ } else if (dev->if_port == 5)
+ iowrite32(ioread32(ioaddr + CSR14) & ~0x080, ioaddr + CSR14);
+ } else if (dev->if_port == 0 || dev->if_port == 4) {
+ if ((csr12 & 4) == 0)
+ printk(KERN_INFO"%s: 21143 10baseT link beat good.\n",
+ dev->name);
+ } else if (!(csr12 & 4)) { /* 10mbps link beat good. */
+ if (tulip_debug)
+ printk(KERN_INFO"%s: 21143 10mbps sensed media.\n",
+ dev->name);
+ dev->if_port = 0;
+ } else if (tp->nwayset) {
+ if (tulip_debug)
+ printk(KERN_INFO"%s: 21143 using NWay-set %s, csr6 %8.8x.\n",
+ dev->name, medianame[dev->if_port], tp->csr6);
+ } else { /* 100mbps link beat good. */
+ if (tulip_debug)
+ printk(KERN_INFO"%s: 21143 100baseTx sensed media.\n",
+ dev->name);
+ dev->if_port = 3;
+ tp->csr6 = 0x838E0000 | (tp->csr6 & 0x20ff);
+ iowrite32(0x0003FF7F, ioaddr + CSR14);
+ iowrite32(0x0301, ioaddr + CSR12);
+ tulip_restart_rxtx(tp);
+ }
+}
+
+
diff --git a/drivers/net/tulip/Kconfig b/drivers/net/tulip/Kconfig
new file mode 100644
index 000000000000..e2cdaf876201
--- /dev/null
+++ b/drivers/net/tulip/Kconfig
@@ -0,0 +1,166 @@
+#
+# Tulip family network device configuration
+#
+
+menu "Tulip family network device support"
+ depends on NET_ETHERNET && (PCI || EISA || CARDBUS)
+
+config NET_TULIP
+ bool "\"Tulip\" family network device support"
+ help
+ This selects the "Tulip" family of EISA/PCI network cards.
+
+config DE2104X
+ tristate "Early DECchip Tulip (dc2104x) PCI support (EXPERIMENTAL)"
+ depends on NET_TULIP && PCI && EXPERIMENTAL
+ select CRC32
+ ---help---
+ This driver is developed for the SMC EtherPower series Ethernet
+ cards and also works with cards based on the DECchip
+ 21040 (Tulip series) chips. Some LinkSys PCI cards are
+ of this type. (If your card is NOT SMC EtherPower 10/100 PCI
+ (smc9332dst), you can also try the driver for "Generic DECchip"
+ cards, below. However, most people with a network card of this type
+ will say Y here.) Do read the Ethernet-HOWTO, available from
+ <http://www.tldp.org/docs.html#howto>.
+
+ To compile this driver as a module, choose M here and read
+ <file:Documentation/networking/net-modules.txt>. The module will
+ be called de2104x.
+
+config TULIP
+ tristate "DECchip Tulip (dc2114x) PCI support"
+ depends on NET_TULIP && PCI
+ select CRC32
+ ---help---
+ This driver is developed for the SMC EtherPower series Ethernet
+ cards and also works with cards based on the DECchip
+ 21140 (Tulip series) chips. Some LinkSys PCI cards are
+ of this type. (If your card is NOT SMC EtherPower 10/100 PCI
+ (smc9332dst), you can also try the driver for "Generic DECchip"
+ cards, above. However, most people with a network card of this type
+ will say Y here.) Do read the Ethernet-HOWTO, available from
+ <http://www.tldp.org/docs.html#howto>.
+
+ To compile this driver as a module, choose M here and read
+ <file:Documentation/networking/net-modules.txt>. The module will
+ be called tulip.
+
+config TULIP_MWI
+ bool "New bus configuration (EXPERIMENTAL)"
+ depends on TULIP && EXPERIMENTAL
+ help
+ This configures your Tulip card specifically for the card and
+ system cache line size type you are using.
+
+ This is experimental code, not yet tested on many boards.
+
+ If unsure, say N.
+
+config TULIP_MMIO
+ bool "Use PCI shared mem for NIC registers"
+ depends on TULIP
+ help
+ Use PCI shared memory for the NIC registers, rather than going through
+ the Tulip's PIO (programmed I/O ports). Faster, but could produce
+ obscure bugs if your mainboard has memory controller timing issues.
+ If in doubt, say N.
+
+config TULIP_NAPI
+ bool "Use NAPI RX polling "
+ depends on TULIP
+ help
+ NAPI is a new driver API designed to reduce CPU and interrupt load
+ when the driver is receiving lots of packets from the card. It is
+ still somewhat experimental and thus not yet enabled by default.
+
+ If your estimated Rx load is 10kpps or more, or if the card will be
+ deployed on potentially unfriendly networks (e.g. in a firewall),
+ then say Y here.
+
+ See <file:Documentation/networking/NAPI_HOWTO.txt> for more
+ information.
+
+ If in doubt, say N.
+
+config TULIP_NAPI_HW_MITIGATION
+ bool "Use Interrupt Mitigation "
+ depends on TULIP_NAPI
+ ---help---
+ Use HW to reduce RX interrupts. Not strict necessary since NAPI reduces
+ RX interrupts but itself. Although this reduces RX interrupts even at
+ low levels traffic at the cost of a small latency.
+
+ If in doubt, say Y.
+
+config DE4X5
+ tristate "Generic DECchip & DIGITAL EtherWORKS PCI/EISA"
+ depends on NET_TULIP && (PCI || EISA)
+ select CRC32
+ ---help---
+ This is support for the DIGITAL series of PCI/EISA Ethernet cards.
+ These include the DE425, DE434, DE435, DE450 and DE500 models. If
+ you have a network card of this type, say Y and read the
+ Ethernet-HOWTO, available from
+ <http://www.tldp.org/docs.html#howto>. More specific
+ information is contained in
+ <file:Documentation/networking/de4x5.txt>.
+
+ To compile this driver as a module, choose M here and read
+ <file:Documentation/networking/net-modules.txt>. The module will
+ be called de4x5.
+
+config WINBOND_840
+ tristate "Winbond W89c840 Ethernet support"
+ depends on NET_TULIP && PCI
+ select CRC32
+ select MII
+ help
+ This driver is for the Winbond W89c840 chip. It also works with
+ the TX9882 chip on the Compex RL100-ATX board.
+ More specific information and updates are available from
+ <http://www.scyld.com/network/drivers.html>.
+
+config DM9102
+ tristate "Davicom DM910x/DM980x support"
+ depends on NET_TULIP && PCI
+ select CRC32
+ ---help---
+ This driver is for DM9102(A)/DM9132/DM9801 compatible PCI cards from
+ Davicom (<http://www.davicom.com.tw/>). If you have such a network
+ (Ethernet) card, say Y. Some information is contained in the file
+ <file:Documentation/networking/dmfe.txt>.
+
+ To compile this driver as a module, choose M here and read
+ <file:Documentation/networking/net-modules.txt>. The module will
+ be called dmfe.
+
+config PCMCIA_XIRCOM
+ tristate "Xircom CardBus support (new driver)"
+ depends on NET_TULIP && CARDBUS
+ ---help---
+ This driver is for the Digital "Tulip" Ethernet CardBus adapters.
+ It should work with most DEC 21*4*-based chips/ethercards, as well
+ as with work-alike chips from Lite-On (PNIC) and Macronix (MXIC) and
+ ASIX.
+
+ To compile this driver as a module, choose M here and read
+ <file:Documentation/networking/net-modules.txt>. The module will
+ be called xircom_cb. If unsure, say N.
+
+config PCMCIA_XIRTULIP
+ tristate "Xircom Tulip-like CardBus support (old driver)"
+ depends on NET_TULIP && CARDBUS && BROKEN_ON_SMP
+ select CRC32
+ ---help---
+ This driver is for the Digital "Tulip" Ethernet CardBus adapters.
+ It should work with most DEC 21*4*-based chips/ethercards, as well
+ as with work-alike chips from Lite-On (PNIC) and Macronix (MXIC) and
+ ASIX.
+
+ To compile this driver as a module, choose M here and read
+ <file:Documentation/networking/net-modules.txt>. The module will
+ be called xircom_tulip_cb. If unsure, say N.
+
+endmenu
+
diff --git a/drivers/net/tulip/Makefile b/drivers/net/tulip/Makefile
new file mode 100644
index 000000000000..8bb9b4683979
--- /dev/null
+++ b/drivers/net/tulip/Makefile
@@ -0,0 +1,17 @@
+#
+# Makefile for the Linux "Tulip" family network device drivers.
+#
+
+obj-$(CONFIG_PCMCIA_XIRTULIP) += xircom_tulip_cb.o
+obj-$(CONFIG_PCMCIA_XIRCOM) += xircom_cb.o
+obj-$(CONFIG_DM9102) += dmfe.o
+obj-$(CONFIG_WINBOND_840) += winbond-840.o
+obj-$(CONFIG_DE2104X) += de2104x.o
+obj-$(CONFIG_TULIP) += tulip.o
+obj-$(CONFIG_DE4X5) += de4x5.o
+
+# Declare multi-part drivers.
+
+tulip-objs := eeprom.o interrupt.o media.o \
+ timer.o tulip_core.o \
+ 21142.o pnic.o pnic2.o
diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c
new file mode 100644
index 000000000000..008e19210e66
--- /dev/null
+++ b/drivers/net/tulip/de2104x.c
@@ -0,0 +1,2187 @@
+/* de2104x.c: A Linux PCI Ethernet driver for Intel/Digital 21040/1 chips. */
+/*
+ Copyright 2001,2003 Jeff Garzik <jgarzik@pobox.com>
+
+ Copyright 1994, 1995 Digital Equipment Corporation. [de4x5.c]
+ Written/copyright 1994-2001 by Donald Becker. [tulip.c]
+
+ This software may be used and distributed according to the terms of
+ the GNU General Public License (GPL), incorporated herein by reference.
+ Drivers based on or derived from this code fall under the GPL and must
+ retain the authorship, copyright and license notice. This file is not
+ a complete program and may only be used when the entire operating
+ system is licensed under the GPL.
+
+ See the file COPYING in this distribution for more information.
+
+ TODO, in rough priority order:
+ * Support forcing media type with a module parameter,
+ like dl2k.c/sundance.c
+ * Constants (module parms?) for Rx work limit
+ * Complete reset on PciErr
+ * Jumbo frames / dev->change_mtu
+ * Adjust Rx FIFO threshold and Max Rx DMA burst on Rx FIFO error
+ * Adjust Tx FIFO threshold and Max Tx DMA burst on Tx FIFO error
+ * Implement Tx software interrupt mitigation via
+ Tx descriptor bit
+
+ */
+
+#define DRV_NAME "de2104x"
+#define DRV_VERSION "0.7"
+#define DRV_RELDATE "Mar 17, 2004"
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/compiler.h>
+#include <linux/rtnetlink.h>
+#include <linux/crc32.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+#include <asm/unaligned.h>
+
+/* These identify the driver base version and may not be removed. */
+static char version[] =
+KERN_INFO DRV_NAME " PCI Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")\n";
+
+MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
+MODULE_DESCRIPTION("Intel/Digital 21040/1 series PCI Ethernet driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+static int debug = -1;
+module_param (debug, int, 0);
+MODULE_PARM_DESC (debug, "de2104x bitmapped message enable number");
+
+/* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */
+#if defined(__alpha__) || defined(__arm__) || defined(__hppa__) \
+ || defined(__sparc_) || defined(__ia64__) \
+ || defined(__sh__) || defined(__mips__)
+static int rx_copybreak = 1518;
+#else
+static int rx_copybreak = 100;
+#endif
+module_param (rx_copybreak, int, 0);
+MODULE_PARM_DESC (rx_copybreak, "de2104x Breakpoint at which Rx packets are copied");
+
+#define PFX DRV_NAME ": "
+
+#define DE_DEF_MSG_ENABLE (NETIF_MSG_DRV | \
+ NETIF_MSG_PROBE | \
+ NETIF_MSG_LINK | \
+ NETIF_MSG_IFDOWN | \
+ NETIF_MSG_IFUP | \
+ NETIF_MSG_RX_ERR | \
+ NETIF_MSG_TX_ERR)
+
+#define DE_RX_RING_SIZE 64
+#define DE_TX_RING_SIZE 64
+#define DE_RING_BYTES \
+ ((sizeof(struct de_desc) * DE_RX_RING_SIZE) + \
+ (sizeof(struct de_desc) * DE_TX_RING_SIZE))
+#define NEXT_TX(N) (((N) + 1) & (DE_TX_RING_SIZE - 1))
+#define NEXT_RX(N) (((N) + 1) & (DE_RX_RING_SIZE - 1))
+#define TX_BUFFS_AVAIL(CP) \
+ (((CP)->tx_tail <= (CP)->tx_head) ? \
+ (CP)->tx_tail + (DE_TX_RING_SIZE - 1) - (CP)->tx_head : \
+ (CP)->tx_tail - (CP)->tx_head - 1)
+
+#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
+#define RX_OFFSET 2
+
+#define DE_SETUP_SKB ((struct sk_buff *) 1)
+#define DE_DUMMY_SKB ((struct sk_buff *) 2)
+#define DE_SETUP_FRAME_WORDS 96
+#define DE_EEPROM_WORDS 256
+#define DE_EEPROM_SIZE (DE_EEPROM_WORDS * sizeof(u16))
+#define DE_MAX_MEDIA 5
+
+#define DE_MEDIA_TP_AUTO 0
+#define DE_MEDIA_BNC 1
+#define DE_MEDIA_AUI 2
+#define DE_MEDIA_TP 3
+#define DE_MEDIA_TP_FD 4
+#define DE_MEDIA_INVALID DE_MAX_MEDIA
+#define DE_MEDIA_FIRST 0
+#define DE_MEDIA_LAST (DE_MAX_MEDIA - 1)
+#define DE_AUI_BNC (SUPPORTED_AUI | SUPPORTED_BNC)
+
+#define DE_TIMER_LINK (60 * HZ)
+#define DE_TIMER_NO_LINK (5 * HZ)
+
+#define DE_NUM_REGS 16
+#define DE_REGS_SIZE (DE_NUM_REGS * sizeof(u32))
+#define DE_REGS_VER 1
+
+/* Time in jiffies before concluding the transmitter is hung. */
+#define TX_TIMEOUT (6*HZ)
+
+#define DE_UNALIGNED_16(a) (u16)(get_unaligned((u16 *)(a)))
+
+/* This is a mysterious value that can be written to CSR11 in the 21040 (only)
+ to support a pre-NWay full-duplex signaling mechanism using short frames.
+ No one knows what it should be, but if left at its default value some
+ 10base2(!) packets trigger a full-duplex-request interrupt. */
+#define FULL_DUPLEX_MAGIC 0x6969
+
+enum {
+ /* NIC registers */
+ BusMode = 0x00,
+ TxPoll = 0x08,
+ RxPoll = 0x10,
+ RxRingAddr = 0x18,
+ TxRingAddr = 0x20,
+ MacStatus = 0x28,
+ MacMode = 0x30,
+ IntrMask = 0x38,
+ RxMissed = 0x40,
+ ROMCmd = 0x48,
+ CSR11 = 0x58,
+ SIAStatus = 0x60,
+ CSR13 = 0x68,
+ CSR14 = 0x70,
+ CSR15 = 0x78,
+ PCIPM = 0x40,
+
+ /* BusMode bits */
+ CmdReset = (1 << 0),
+ CacheAlign16 = 0x00008000,
+ BurstLen4 = 0x00000400,
+
+ /* Rx/TxPoll bits */
+ NormalTxPoll = (1 << 0),
+ NormalRxPoll = (1 << 0),
+
+ /* Tx/Rx descriptor status bits */
+ DescOwn = (1 << 31),
+ RxError = (1 << 15),
+ RxErrLong = (1 << 7),
+ RxErrCRC = (1 << 1),
+ RxErrFIFO = (1 << 0),
+ RxErrRunt = (1 << 11),
+ RxErrFrame = (1 << 14),
+ RingEnd = (1 << 25),
+ FirstFrag = (1 << 29),
+ LastFrag = (1 << 30),
+ TxError = (1 << 15),
+ TxFIFOUnder = (1 << 1),
+ TxLinkFail = (1 << 2) | (1 << 10) | (1 << 11),
+ TxMaxCol = (1 << 8),
+ TxOWC = (1 << 9),
+ TxJabber = (1 << 14),
+ SetupFrame = (1 << 27),
+ TxSwInt = (1 << 31),
+
+ /* MacStatus bits */
+ IntrOK = (1 << 16),
+ IntrErr = (1 << 15),
+ RxIntr = (1 << 6),
+ RxEmpty = (1 << 7),
+ TxIntr = (1 << 0),
+ TxEmpty = (1 << 2),
+ PciErr = (1 << 13),
+ TxState = (1 << 22) | (1 << 21) | (1 << 20),
+ RxState = (1 << 19) | (1 << 18) | (1 << 17),
+ LinkFail = (1 << 12),
+ LinkPass = (1 << 4),
+ RxStopped = (1 << 8),
+ TxStopped = (1 << 1),
+
+ /* MacMode bits */
+ TxEnable = (1 << 13),
+ RxEnable = (1 << 1),
+ RxTx = TxEnable | RxEnable,
+ FullDuplex = (1 << 9),
+ AcceptAllMulticast = (1 << 7),
+ AcceptAllPhys = (1 << 6),
+ BOCnt = (1 << 5),
+ MacModeClear = (1<<12) | (1<<11) | (1<<10) | (1<<8) | (1<<3) |
+ RxTx | BOCnt | AcceptAllPhys | AcceptAllMulticast,
+
+ /* ROMCmd bits */
+ EE_SHIFT_CLK = 0x02, /* EEPROM shift clock. */
+ EE_CS = 0x01, /* EEPROM chip select. */
+ EE_DATA_WRITE = 0x04, /* Data from the Tulip to EEPROM. */
+ EE_WRITE_0 = 0x01,
+ EE_WRITE_1 = 0x05,
+ EE_DATA_READ = 0x08, /* Data from the EEPROM chip. */
+ EE_ENB = (0x4800 | EE_CS),
+
+ /* The EEPROM commands include the alway-set leading bit. */
+ EE_READ_CMD = 6,
+
+ /* RxMissed bits */
+ RxMissedOver = (1 << 16),
+ RxMissedMask = 0xffff,
+
+ /* SROM-related bits */
+ SROMC0InfoLeaf = 27,
+ MediaBlockMask = 0x3f,
+ MediaCustomCSRs = (1 << 6),
+
+ /* PCIPM bits */
+ PM_Sleep = (1 << 31),
+ PM_Snooze = (1 << 30),
+ PM_Mask = PM_Sleep | PM_Snooze,
+
+ /* SIAStatus bits */
+ NWayState = (1 << 14) | (1 << 13) | (1 << 12),
+ NWayRestart = (1 << 12),
+ NonselPortActive = (1 << 9),
+ LinkFailStatus = (1 << 2),
+ NetCxnErr = (1 << 1),
+};
+
+static const u32 de_intr_mask =
+ IntrOK | IntrErr | RxIntr | RxEmpty | TxIntr | TxEmpty |
+ LinkPass | LinkFail | PciErr;
+
+/*
+ * Set the programmable burst length to 4 longwords for all:
+ * DMA errors result without these values. Cache align 16 long.
+ */
+static const u32 de_bus_mode = CacheAlign16 | BurstLen4;
+
+struct de_srom_media_block {
+ u8 opts;
+ u16 csr13;
+ u16 csr14;
+ u16 csr15;
+} __attribute__((packed));
+
+struct de_srom_info_leaf {
+ u16 default_media;
+ u8 n_blocks;
+ u8 unused;
+} __attribute__((packed));
+
+struct de_desc {
+ u32 opts1;
+ u32 opts2;
+ u32 addr1;
+ u32 addr2;
+};
+
+struct media_info {
+ u16 type; /* DE_MEDIA_xxx */
+ u16 csr13;
+ u16 csr14;
+ u16 csr15;
+};
+
+struct ring_info {
+ struct sk_buff *skb;
+ dma_addr_t mapping;
+};
+
+struct de_private {
+ unsigned tx_head;
+ unsigned tx_tail;
+ unsigned rx_tail;
+
+ void __iomem *regs;
+ struct net_device *dev;
+ spinlock_t lock;
+
+ struct de_desc *rx_ring;
+ struct de_desc *tx_ring;
+ struct ring_info tx_skb[DE_TX_RING_SIZE];
+ struct ring_info rx_skb[DE_RX_RING_SIZE];
+ unsigned rx_buf_sz;
+ dma_addr_t ring_dma;
+
+ u32 msg_enable;
+
+ struct net_device_stats net_stats;
+
+ struct pci_dev *pdev;
+
+ u16 setup_frame[DE_SETUP_FRAME_WORDS];
+
+ u32 media_type;
+ u32 media_supported;
+ u32 media_advertise;
+ struct media_info media[DE_MAX_MEDIA];
+ struct timer_list media_timer;
+
+ u8 *ee_data;
+ unsigned board_idx;
+ unsigned de21040 : 1;
+ unsigned media_lock : 1;
+};
+
+
+static void de_set_rx_mode (struct net_device *dev);
+static void de_tx (struct de_private *de);
+static void de_clean_rings (struct de_private *de);
+static void de_media_interrupt (struct de_private *de, u32 status);
+static void de21040_media_timer (unsigned long data);
+static void de21041_media_timer (unsigned long data);
+static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media);
+
+
+static struct pci_device_id de_pci_tbl[] = {
+ { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_PLUS,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
+ { },
+};
+MODULE_DEVICE_TABLE(pci, de_pci_tbl);
+
+static const char * const media_name[DE_MAX_MEDIA] = {
+ "10baseT auto",
+ "BNC",
+ "AUI",
+ "10baseT-HD",
+ "10baseT-FD"
+};
+
+/* 21040 transceiver register settings:
+ * TP AUTO(unused), BNC(unused), AUI, TP, TP FD*/
+static u16 t21040_csr13[] = { 0, 0, 0x8F09, 0x8F01, 0x8F01, };
+static u16 t21040_csr14[] = { 0, 0, 0x0705, 0xFFFF, 0xFFFD, };
+static u16 t21040_csr15[] = { 0, 0, 0x0006, 0x0000, 0x0000, };
+
+/* 21041 transceiver register settings: TP AUTO, BNC, AUI, TP, TP FD*/
+static u16 t21041_csr13[] = { 0xEF01, 0xEF09, 0xEF09, 0xEF01, 0xEF09, };
+static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x6F3F, 0x6F3D, };
+static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
+
+
+#define dr32(reg) readl(de->regs + (reg))
+#define dw32(reg,val) writel((val), de->regs + (reg))
+
+
+static void de_rx_err_acct (struct de_private *de, unsigned rx_tail,
+ u32 status, u32 len)
+{
+ if (netif_msg_rx_err (de))
+ printk (KERN_DEBUG
+ "%s: rx err, slot %d status 0x%x len %d\n",
+ de->dev->name, rx_tail, status, len);
+
+ if ((status & 0x38000300) != 0x0300) {
+ /* Ingore earlier buffers. */
+ if ((status & 0xffff) != 0x7fff) {
+ if (netif_msg_rx_err(de))
+ printk(KERN_WARNING "%s: Oversized Ethernet frame "
+ "spanned multiple buffers, status %8.8x!\n",
+ de->dev->name, status);
+ de->net_stats.rx_length_errors++;
+ }
+ } else if (status & RxError) {
+ /* There was a fatal error. */
+ de->net_stats.rx_errors++; /* end of a packet.*/
+ if (status & 0x0890) de->net_stats.rx_length_errors++;
+ if (status & RxErrCRC) de->net_stats.rx_crc_errors++;
+ if (status & RxErrFIFO) de->net_stats.rx_fifo_errors++;
+ }
+}
+
+static void de_rx (struct de_private *de)
+{
+ unsigned rx_tail = de->rx_tail;
+ unsigned rx_work = DE_RX_RING_SIZE;
+ unsigned drop = 0;
+ int rc;
+
+ while (rx_work--) {
+ u32 status, len;
+ dma_addr_t mapping;
+ struct sk_buff *skb, *copy_skb;
+ unsigned copying_skb, buflen;
+
+ skb = de->rx_skb[rx_tail].skb;
+ if (!skb)
+ BUG();
+ rmb();
+ status = le32_to_cpu(de->rx_ring[rx_tail].opts1);
+ if (status & DescOwn)
+ break;
+
+ len = ((status >> 16) & 0x7ff) - 4;
+ mapping = de->rx_skb[rx_tail].mapping;
+
+ if (unlikely(drop)) {
+ de->net_stats.rx_dropped++;
+ goto rx_next;
+ }
+
+ if (unlikely((status & 0x38008300) != 0x0300)) {
+ de_rx_err_acct(de, rx_tail, status, len);
+ goto rx_next;
+ }
+
+ copying_skb = (len <= rx_copybreak);
+
+ if (unlikely(netif_msg_rx_status(de)))
+ printk(KERN_DEBUG "%s: rx slot %d status 0x%x len %d copying? %d\n",
+ de->dev->name, rx_tail, status, len,
+ copying_skb);
+
+ buflen = copying_skb ? (len + RX_OFFSET) : de->rx_buf_sz;
+ copy_skb = dev_alloc_skb (buflen);
+ if (unlikely(!copy_skb)) {
+ de->net_stats.rx_dropped++;
+ drop = 1;
+ rx_work = 100;
+ goto rx_next;
+ }
+ copy_skb->dev = de->dev;
+
+ if (!copying_skb) {
+ pci_unmap_single(de->pdev, mapping,
+ buflen, PCI_DMA_FROMDEVICE);
+ skb_put(skb, len);
+
+ mapping =
+ de->rx_skb[rx_tail].mapping =
+ pci_map_single(de->pdev, copy_skb->tail,
+ buflen, PCI_DMA_FROMDEVICE);
+ de->rx_skb[rx_tail].skb = copy_skb;
+ } else {
+ pci_dma_sync_single_for_cpu(de->pdev, mapping, len, PCI_DMA_FROMDEVICE);
+ skb_reserve(copy_skb, RX_OFFSET);
+ memcpy(skb_put(copy_skb, len), skb->tail, len);
+
+ pci_dma_sync_single_for_device(de->pdev, mapping, len, PCI_DMA_FROMDEVICE);
+
+ /* We'll reuse the original ring buffer. */
+ skb = copy_skb;
+ }
+
+ skb->protocol = eth_type_trans (skb, de->dev);
+
+ de->net_stats.rx_packets++;
+ de->net_stats.rx_bytes += skb->len;
+ de->dev->last_rx = jiffies;
+ rc = netif_rx (skb);
+ if (rc == NET_RX_DROP)
+ drop = 1;
+
+rx_next:
+ de->rx_ring[rx_tail].opts1 = cpu_to_le32(DescOwn);
+ if (rx_tail == (DE_RX_RING_SIZE - 1))
+ de->rx_ring[rx_tail].opts2 =
+ cpu_to_le32(RingEnd | de->rx_buf_sz);
+ else
+ de->rx_ring[rx_tail].opts2 = cpu_to_le32(de->rx_buf_sz);
+ de->rx_ring[rx_tail].addr1 = cpu_to_le32(mapping);
+ rx_tail = NEXT_RX(rx_tail);
+ }
+
+ if (!rx_work)
+ printk(KERN_WARNING "%s: rx work limit reached\n", de->dev->name);
+
+ de->rx_tail = rx_tail;
+}
+
+static irqreturn_t de_interrupt (int irq, void *dev_instance, struct pt_regs *regs)
+{
+ struct net_device *dev = dev_instance;
+ struct de_private *de = dev->priv;
+ u32 status;
+
+ status = dr32(MacStatus);
+ if ((!(status & (IntrOK|IntrErr))) || (status == 0xFFFF))
+ return IRQ_NONE;
+
+ if (netif_msg_intr(de))
+ printk(KERN_DEBUG "%s: intr, status %08x mode %08x desc %u/%u/%u\n",
+ dev->name, status, dr32(MacMode), de->rx_tail, de->tx_head, de->tx_tail);
+
+ dw32(MacStatus, status);
+
+ if (status & (RxIntr | RxEmpty)) {
+ de_rx(de);
+ if (status & RxEmpty)
+ dw32(RxPoll, NormalRxPoll);
+ }
+
+ spin_lock(&de->lock);
+
+ if (status & (TxIntr | TxEmpty))
+ de_tx(de);
+
+ if (status & (LinkPass | LinkFail))
+ de_media_interrupt(de, status);
+
+ spin_unlock(&de->lock);
+
+ if (status & PciErr) {
+ u16 pci_status;
+
+ pci_read_config_word(de->pdev, PCI_STATUS, &pci_status);
+ pci_write_config_word(de->pdev, PCI_STATUS, pci_status);
+ printk(KERN_ERR "%s: PCI bus error, status=%08x, PCI status=%04x\n",
+ dev->name, status, pci_status);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static void de_tx (struct de_private *de)
+{
+ unsigned tx_head = de->tx_head;
+ unsigned tx_tail = de->tx_tail;
+
+ while (tx_tail != tx_head) {
+ struct sk_buff *skb;
+ u32 status;
+
+ rmb();
+ status = le32_to_cpu(de->tx_ring[tx_tail].opts1);
+ if (status & DescOwn)
+ break;
+
+ skb = de->tx_skb[tx_tail].skb;
+ if (!skb)
+ BUG();
+ if (unlikely(skb == DE_DUMMY_SKB))
+ goto next;
+
+ if (unlikely(skb == DE_SETUP_SKB)) {
+ pci_unmap_single(de->pdev, de->tx_skb[tx_tail].mapping,
+ sizeof(de->setup_frame), PCI_DMA_TODEVICE);
+ goto next;
+ }
+
+ pci_unmap_single(de->pdev, de->tx_skb[tx_tail].mapping,
+ skb->len, PCI_DMA_TODEVICE);
+
+ if (status & LastFrag) {
+ if (status & TxError) {
+ if (netif_msg_tx_err(de))
+ printk(KERN_DEBUG "%s: tx err, status 0x%x\n",
+ de->dev->name, status);
+ de->net_stats.tx_errors++;
+ if (status & TxOWC)
+ de->net_stats.tx_window_errors++;
+ if (status & TxMaxCol)
+ de->net_stats.tx_aborted_errors++;
+ if (status & TxLinkFail)
+ de->net_stats.tx_carrier_errors++;
+ if (status & TxFIFOUnder)
+ de->net_stats.tx_fifo_errors++;
+ } else {
+ de->net_stats.tx_packets++;
+ de->net_stats.tx_bytes += skb->len;
+ if (netif_msg_tx_done(de))
+ printk(KERN_DEBUG "%s: tx done, slot %d\n", de->dev->name, tx_tail);
+ }
+ dev_kfree_skb_irq(skb);
+ }
+
+next:
+ de->tx_skb[tx_tail].skb = NULL;
+
+ tx_tail = NEXT_TX(tx_tail);
+ }
+
+ de->tx_tail = tx_tail;
+
+ if (netif_queue_stopped(de->dev) && (TX_BUFFS_AVAIL(de) > (DE_TX_RING_SIZE / 4)))
+ netif_wake_queue(de->dev);
+}
+
+static int de_start_xmit (struct sk_buff *skb, struct net_device *dev)
+{
+ struct de_private *de = dev->priv;
+ unsigned int entry, tx_free;
+ u32 mapping, len, flags = FirstFrag | LastFrag;
+ struct de_desc *txd;
+
+ spin_lock_irq(&de->lock);
+
+ tx_free = TX_BUFFS_AVAIL(de);
+ if (tx_free == 0) {
+ netif_stop_queue(dev);
+ spin_unlock_irq(&de->lock);
+ return 1;
+ }
+ tx_free--;
+
+ entry = de->tx_head;
+
+ txd = &de->tx_ring[entry];
+
+ len = skb->len;
+ mapping = pci_map_single(de->pdev, skb->data, len, PCI_DMA_TODEVICE);
+ if (entry == (DE_TX_RING_SIZE - 1))
+ flags |= RingEnd;
+ if (!tx_free || (tx_free == (DE_TX_RING_SIZE / 2)))
+ flags |= TxSwInt;
+ flags |= len;
+ txd->opts2 = cpu_to_le32(flags);
+ txd->addr1 = cpu_to_le32(mapping);
+
+ de->tx_skb[entry].skb = skb;
+ de->tx_skb[entry].mapping = mapping;
+ wmb();
+
+ txd->opts1 = cpu_to_le32(DescOwn);
+ wmb();
+
+ de->tx_head = NEXT_TX(entry);
+ if (netif_msg_tx_queued(de))
+ printk(KERN_DEBUG "%s: tx queued, slot %d, skblen %d\n",
+ dev->name, entry, skb->len);
+
+ if (tx_free == 0)
+ netif_stop_queue(dev);
+
+ spin_unlock_irq(&de->lock);
+
+ /* Trigger an immediate transmit demand. */
+ dw32(TxPoll, NormalTxPoll);
+ dev->trans_start = jiffies;
+
+ return 0;
+}
+
+/* Set or clear the multicast filter for this adaptor.
+ Note that we only use exclusion around actually queueing the
+ new frame, not around filling de->setup_frame. This is non-deterministic
+ when re-entered but still correct. */
+
+#undef set_bit_le
+#define set_bit_le(i,p) do { ((char *)(p))[(i)/8] |= (1<<((i)%8)); } while(0)
+
+static void build_setup_frame_hash(u16 *setup_frm, struct net_device *dev)
+{
+ struct de_private *de = dev->priv;
+ u16 hash_table[32];
+ struct dev_mc_list *mclist;
+ int i;
+ u16 *eaddrs;
+
+ memset(hash_table, 0, sizeof(hash_table));
+ set_bit_le(255, hash_table); /* Broadcast entry */
+ /* This should work on big-endian machines as well. */
+ for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
+ i++, mclist = mclist->next) {
+ int index = ether_crc_le(ETH_ALEN, mclist->dmi_addr) & 0x1ff;
+
+ set_bit_le(index, hash_table);
+
+ for (i = 0; i < 32; i++) {
+ *setup_frm++ = hash_table[i];
+ *setup_frm++ = hash_table[i];
+ }
+ setup_frm = &de->setup_frame[13*6];
+ }
+
+ /* Fill the final entry with our physical address. */
+ eaddrs = (u16 *)dev->dev_addr;
+ *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0];
+ *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1];
+ *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2];
+}
+
+static void build_setup_frame_perfect(u16 *setup_frm, struct net_device *dev)
+{
+ struct de_private *de = dev->priv;
+ struct dev_mc_list *mclist;
+ int i;
+ u16 *eaddrs;
+
+ /* We have <= 14 addresses so we can use the wonderful
+ 16 address perfect filtering of the Tulip. */
+ for (i = 0, mclist = dev->mc_list; i < dev->mc_count;
+ i++, mclist = mclist->next) {
+ eaddrs = (u16 *)mclist->dmi_addr;
+ *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++;
+ *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++;
+ *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++;
+ }
+ /* Fill the unused entries with the broadcast address. */
+ memset(setup_frm, 0xff, (15-i)*12);
+ setup_frm = &de->setup_frame[15*6];
+
+ /* Fill the final entry with our physical address. */
+ eaddrs = (u16 *)dev->dev_addr;
+ *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0];
+ *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1];
+ *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2];
+}
+
+
+static void __de_set_rx_mode (struct net_device *dev)
+{
+ struct de_private *de = dev->priv;
+ u32 macmode;
+ unsigned int entry;
+ u32 mapping;
+ struct de_desc *txd;
+ struct de_desc *dummy_txd = NULL;
+
+ macmode = dr32(MacMode) & ~(AcceptAllMulticast | AcceptAllPhys);
+
+ if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
+ macmode |= AcceptAllMulticast | AcceptAllPhys;
+ goto out;
+ }
+
+ if ((dev->mc_count > 1000) || (dev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter well -- accept all multicasts. */
+ macmode |= AcceptAllMulticast;
+ goto out;
+ }
+
+ /* Note that only the low-address shortword of setup_frame is valid!
+ The values are doubled for big-endian architectures. */
+ if (dev->mc_count > 14) /* Must use a multicast hash table. */
+ build_setup_frame_hash (de->setup_frame, dev);
+ else
+ build_setup_frame_perfect (de->setup_frame, dev);
+
+ /*
+ * Now add this frame to the Tx list.
+ */
+
+ entry = de->tx_head;
+
+ /* Avoid a chip errata by prefixing a dummy entry. */
+ if (entry != 0) {
+ de->tx_skb[entry].skb = DE_DUMMY_SKB;
+
+ dummy_txd = &de->tx_ring[entry];
+ dummy_txd->opts2 = (entry == (DE_TX_RING_SIZE - 1)) ?
+ cpu_to_le32(RingEnd) : 0;
+ dummy_txd->addr1 = 0;
+
+ /* Must set DescOwned later to avoid race with chip */
+
+ entry = NEXT_TX(entry);
+ }
+
+ de->tx_skb[entry].skb = DE_SETUP_SKB;
+ de->tx_skb[entry].mapping = mapping =
+ pci_map_single (de->pdev, de->setup_frame,
+ sizeof (de->setup_frame), PCI_DMA_TODEVICE);
+
+ /* Put the setup frame on the Tx list. */
+ txd = &de->tx_ring[entry];
+ if (entry == (DE_TX_RING_SIZE - 1))
+ txd->opts2 = cpu_to_le32(SetupFrame | RingEnd | sizeof (de->setup_frame));
+ else
+ txd->opts2 = cpu_to_le32(SetupFrame | sizeof (de->setup_frame));
+ txd->addr1 = cpu_to_le32(mapping);
+ wmb();
+
+ txd->opts1 = cpu_to_le32(DescOwn);
+ wmb();
+
+ if (dummy_txd) {
+ dummy_txd->opts1 = cpu_to_le32(DescOwn);
+ wmb();
+ }
+
+ de->tx_head = NEXT_TX(entry);
+
+ if (TX_BUFFS_AVAIL(de) < 0)
+ BUG();
+ if (TX_BUFFS_AVAIL(de) == 0)
+ netif_stop_queue(dev);
+
+ /* Trigger an immediate transmit demand. */
+ dw32(TxPoll, NormalTxPoll);
+
+out:
+ if (macmode != dr32(MacMode))
+ dw32(MacMode, macmode);
+}
+
+static void de_set_rx_mode (struct net_device *dev)
+{
+ unsigned long flags;
+ struct de_private *de = dev->priv;
+
+ spin_lock_irqsave (&de->lock, flags);
+ __de_set_rx_mode(dev);
+ spin_unlock_irqrestore (&de->lock, flags);
+}
+
+static inline void de_rx_missed(struct de_private *de, u32 rx_missed)
+{
+ if (unlikely(rx_missed & RxMissedOver))
+ de->net_stats.rx_missed_errors += RxMissedMask;
+ else
+ de->net_stats.rx_missed_errors += (rx_missed & RxMissedMask);
+}
+
+static void __de_get_stats(struct de_private *de)
+{
+ u32 tmp = dr32(RxMissed); /* self-clearing */
+
+ de_rx_missed(de, tmp);
+}
+
+static struct net_device_stats *de_get_stats(struct net_device *dev)
+{
+ struct de_private *de = dev->priv;
+
+ /* The chip only need report frame silently dropped. */
+ spin_lock_irq(&de->lock);
+ if (netif_running(dev) && netif_device_present(dev))
+ __de_get_stats(de);
+ spin_unlock_irq(&de->lock);
+
+ return &de->net_stats;
+}
+
+static inline int de_is_running (struct de_private *de)
+{
+ return (dr32(MacStatus) & (RxState | TxState)) ? 1 : 0;
+}
+
+static void de_stop_rxtx (struct de_private *de)
+{
+ u32 macmode;
+ unsigned int work = 1000;
+
+ macmode = dr32(MacMode);
+ if (macmode & RxTx) {
+ dw32(MacMode, macmode & ~RxTx);
+ dr32(MacMode);
+ }
+
+ while (--work > 0) {
+ if (!de_is_running(de))
+ return;
+ cpu_relax();
+ }
+
+ printk(KERN_WARNING "%s: timeout expired stopping DMA\n", de->dev->name);
+}
+
+static inline void de_start_rxtx (struct de_private *de)
+{
+ u32 macmode;
+
+ macmode = dr32(MacMode);
+ if ((macmode & RxTx) != RxTx) {
+ dw32(MacMode, macmode | RxTx);
+ dr32(MacMode);
+ }
+}
+
+static void de_stop_hw (struct de_private *de)
+{
+
+ udelay(5);
+ dw32(IntrMask, 0);
+
+ de_stop_rxtx(de);
+
+ dw32(MacStatus, dr32(MacStatus));
+
+ udelay(10);
+
+ de->rx_tail = 0;
+ de->tx_head = de->tx_tail = 0;
+}
+
+static void de_link_up(struct de_private *de)
+{
+ if (!netif_carrier_ok(de->dev)) {
+ netif_carrier_on(de->dev);
+ if (netif_msg_link(de))
+ printk(KERN_INFO "%s: link up, media %s\n",
+ de->dev->name, media_name[de->media_type]);
+ }
+}
+
+static void de_link_down(struct de_private *de)
+{
+ if (netif_carrier_ok(de->dev)) {
+ netif_carrier_off(de->dev);
+ if (netif_msg_link(de))
+ printk(KERN_INFO "%s: link down\n", de->dev->name);
+ }
+}
+
+static void de_set_media (struct de_private *de)
+{
+ unsigned media = de->media_type;
+ u32 macmode = dr32(MacMode);
+
+ if (de_is_running(de))
+ BUG();
+
+ if (de->de21040)
+ dw32(CSR11, FULL_DUPLEX_MAGIC);
+ dw32(CSR13, 0); /* Reset phy */
+ dw32(CSR14, de->media[media].csr14);
+ dw32(CSR15, de->media[media].csr15);
+ dw32(CSR13, de->media[media].csr13);
+
+ /* must delay 10ms before writing to other registers,
+ * especially CSR6
+ */
+ mdelay(10);
+
+ if (media == DE_MEDIA_TP_FD)
+ macmode |= FullDuplex;
+ else
+ macmode &= ~FullDuplex;
+
+ if (netif_msg_link(de)) {
+ printk(KERN_INFO "%s: set link %s\n"
+ KERN_INFO "%s: mode 0x%x, sia 0x%x,0x%x,0x%x,0x%x\n"
+ KERN_INFO "%s: set mode 0x%x, set sia 0x%x,0x%x,0x%x\n",
+ de->dev->name, media_name[media],
+ de->dev->name, dr32(MacMode), dr32(SIAStatus),
+ dr32(CSR13), dr32(CSR14), dr32(CSR15),
+ de->dev->name, macmode, de->media[media].csr13,
+ de->media[media].csr14, de->media[media].csr15);
+ }
+ if (macmode != dr32(MacMode))
+ dw32(MacMode, macmode);
+}
+
+static void de_next_media (struct de_private *de, u32 *media,
+ unsigned int n_media)
+{
+ unsigned int i;
+
+ for (i = 0; i < n_media; i++) {
+ if (de_ok_to_advertise(de, media[i])) {
+ de->media_type = media[i];
+ return;
+ }
+ }
+}
+
+static void de21040_media_timer (unsigned long data)
+{
+ struct de_private *de = (struct de_private *) data;
+ struct net_device *dev = de->dev;
+ u32 status = dr32(SIAStatus);
+ unsigned int carrier;
+ unsigned long flags;
+
+ carrier = (status & NetCxnErr) ? 0 : 1;
+
+ if (carrier) {
+ if (de->media_type != DE_MEDIA_AUI && (status & LinkFailStatus))
+ goto no_link_yet;
+
+ de->media_timer.expires = jiffies + DE_TIMER_LINK;
+ add_timer(&de->media_timer);
+ if (!netif_carrier_ok(dev))
+ de_link_up(de);
+ else
+ if (netif_msg_timer(de))
+ printk(KERN_INFO "%s: %s link ok, status %x\n",
+ dev->name, media_name[de->media_type],
+ status);
+ return;
+ }
+
+ de_link_down(de);
+
+ if (de->media_lock)
+ return;
+
+ if (de->media_type == DE_MEDIA_AUI) {
+ u32 next_state = DE_MEDIA_TP;
+ de_next_media(de, &next_state, 1);
+ } else {
+ u32 next_state = DE_MEDIA_AUI;
+ de_next_media(de, &next_state, 1);
+ }
+
+ spin_lock_irqsave(&de->lock, flags);
+ de_stop_rxtx(de);
+ spin_unlock_irqrestore(&de->lock, flags);
+ de_set_media(de);
+ de_start_rxtx(de);
+
+no_link_yet:
+ de->media_timer.expires = jiffies + DE_TIMER_NO_LINK;
+ add_timer(&de->media_timer);
+
+ if (netif_msg_timer(de))
+ printk(KERN_INFO "%s: no link, trying media %s, status %x\n",
+ dev->name, media_name[de->media_type], status);
+}
+
+static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media)
+{
+ switch (new_media) {
+ case DE_MEDIA_TP_AUTO:
+ if (!(de->media_advertise & ADVERTISED_Autoneg))
+ return 0;
+ if (!(de->media_advertise & (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full)))
+ return 0;
+ break;
+ case DE_MEDIA_BNC:
+ if (!(de->media_advertise & ADVERTISED_BNC))
+ return 0;
+ break;
+ case DE_MEDIA_AUI:
+ if (!(de->media_advertise & ADVERTISED_AUI))
+ return 0;
+ break;
+ case DE_MEDIA_TP:
+ if (!(de->media_advertise & ADVERTISED_10baseT_Half))
+ return 0;
+ break;
+ case DE_MEDIA_TP_FD:
+ if (!(de->media_advertise & ADVERTISED_10baseT_Full))
+ return 0;
+ break;
+ }
+
+ return 1;
+}
+
+static void de21041_media_timer (unsigned long data)
+{
+ struct de_private *de = (struct de_private *) data;
+ struct net_device *dev = de->dev;
+ u32 status = dr32(SIAStatus);
+ unsigned int carrier;
+ unsigned long flags;
+
+ carrier = (status & NetCxnErr) ? 0 : 1;
+
+ if (carrier) {
+ if ((de->media_type == DE_MEDIA_TP_AUTO ||
+ de->media_type == DE_MEDIA_TP ||
+ de->media_type == DE_MEDIA_TP_FD) &&
+ (status & LinkFailStatus))
+ goto no_link_yet;
+
+ de->media_timer.expires = jiffies + DE_TIMER_LINK;
+ add_timer(&de->media_timer);
+ if (!netif_carrier_ok(dev))
+ de_link_up(de);
+ else
+ if (netif_msg_timer(de))
+ printk(KERN_INFO "%s: %s link ok, mode %x status %x\n",
+ dev->name, media_name[de->media_type],
+ dr32(MacMode), status);
+ return;
+ }
+
+ de_link_down(de);
+
+ /* if media type locked, don't switch media */
+ if (de->media_lock)
+ goto set_media;
+
+ /* if activity detected, use that as hint for new media type */
+ if (status & NonselPortActive) {
+ unsigned int have_media = 1;
+
+ /* if AUI/BNC selected, then activity is on TP port */
+ if (de->media_type == DE_MEDIA_AUI ||
+ de->media_type == DE_MEDIA_BNC) {
+ if (de_ok_to_advertise(de, DE_MEDIA_TP_AUTO))
+ de->media_type = DE_MEDIA_TP_AUTO;
+ else
+ have_media = 0;
+ }
+
+ /* TP selected. If there is only TP and BNC, then it's BNC */
+ else if (((de->media_supported & DE_AUI_BNC) == SUPPORTED_BNC) &&
+ de_ok_to_advertise(de, DE_MEDIA_BNC))
+ de->media_type = DE_MEDIA_BNC;
+
+ /* TP selected. If there is only TP and AUI, then it's AUI */
+ else if (((de->media_supported & DE_AUI_BNC) == SUPPORTED_AUI) &&
+ de_ok_to_advertise(de, DE_MEDIA_AUI))
+ de->media_type = DE_MEDIA_AUI;
+
+ /* otherwise, ignore the hint */
+ else
+ have_media = 0;
+
+ if (have_media)
+ goto set_media;
+ }
+
+ /*
+ * Absent or ambiguous activity hint, move to next advertised
+ * media state. If de->media_type is left unchanged, this
+ * simply resets the PHY and reloads the current media settings.
+ */
+ if (de->media_type == DE_MEDIA_AUI) {
+ u32 next_states[] = { DE_MEDIA_BNC, DE_MEDIA_TP_AUTO };
+ de_next_media(de, next_states, ARRAY_SIZE(next_states));
+ } else if (de->media_type == DE_MEDIA_BNC) {
+ u32 next_states[] = { DE_MEDIA_TP_AUTO, DE_MEDIA_AUI };
+ de_next_media(de, next_states, ARRAY_SIZE(next_states));
+ } else {
+ u32 next_states[] = { DE_MEDIA_AUI, DE_MEDIA_BNC, DE_MEDIA_TP_AUTO };
+ de_next_media(de, next_states, ARRAY_SIZE(next_states));
+ }
+
+set_media:
+ spin_lock_irqsave(&de->lock, flags);
+ de_stop_rxtx(de);
+ spin_unlock_irqrestore(&de->lock, flags);
+ de_set_media(de);
+ de_start_rxtx(de);
+
+no_link_yet:
+ de->media_timer.expires = jiffies + DE_TIMER_NO_LINK;
+ add_timer(&de->media_timer);
+
+ if (netif_msg_timer(de))
+ printk(KERN_INFO "%s: no link, trying media %s, status %x\n",
+ dev->name, media_name[de->media_type], status);
+}
+
+static void de_media_interrupt (struct de_private *de, u32 status)
+{
+ if (status & LinkPass) {
+ de_link_up(de);
+ mod_timer(&de->media_timer, jiffies + DE_TIMER_LINK);
+ return;
+ }
+
+ if (!(status & LinkFail))
+ BUG();
+
+ if (netif_carrier_ok(de->dev)) {
+ de_link_down(de);
+ mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK);
+ }
+}
+
+static int de_reset_mac (struct de_private *de)
+{
+ u32 status, tmp;
+
+ /*
+ * Reset MAC. de4x5.c and tulip.c examined for "advice"
+ * in this area.
+ */
+
+ if (dr32(BusMode) == 0xffffffff)
+ return -EBUSY;
+
+ /* Reset the chip, holding bit 0 set at least 50 PCI cycles. */
+ dw32 (BusMode, CmdReset);
+ mdelay (1);
+
+ dw32 (BusMode, de_bus_mode);
+ mdelay (1);
+
+ for (tmp = 0; tmp < 5; tmp++) {
+ dr32 (BusMode);
+ mdelay (1);
+ }
+
+ mdelay (1);
+
+ status = dr32(MacStatus);
+ if (status & (RxState | TxState))
+ return -EBUSY;
+ if (status == 0xffffffff)
+ return -ENODEV;
+ return 0;
+}
+
+static void de_adapter_wake (struct de_private *de)
+{
+ u32 pmctl;
+
+ if (de->de21040)
+ return;
+
+ pci_read_config_dword(de->pdev, PCIPM, &pmctl);
+ if (pmctl & PM_Mask) {
+ pmctl &= ~PM_Mask;
+ pci_write_config_dword(de->pdev, PCIPM, pmctl);
+
+ /* de4x5.c delays, so we do too */
+ msleep(10);
+ }
+}
+
+static void de_adapter_sleep (struct de_private *de)
+{
+ u32 pmctl;
+
+ if (de->de21040)
+ return;
+
+ pci_read_config_dword(de->pdev, PCIPM, &pmctl);
+ pmctl |= PM_Sleep;
+ pci_write_config_dword(de->pdev, PCIPM, pmctl);
+}
+
+static int de_init_hw (struct de_private *de)
+{
+ struct net_device *dev = de->dev;
+ u32 macmode;
+ int rc;
+
+ de_adapter_wake(de);
+
+ macmode = dr32(MacMode) & ~MacModeClear;
+
+ rc = de_reset_mac(de);
+ if (rc)
+ return rc;
+
+ de_set_media(de); /* reset phy */
+
+ dw32(RxRingAddr, de->ring_dma);
+ dw32(TxRingAddr, de->ring_dma + (sizeof(struct de_desc) * DE_RX_RING_SIZE));
+
+ dw32(MacMode, RxTx | macmode);
+
+ dr32(RxMissed); /* self-clearing */
+
+ dw32(IntrMask, de_intr_mask);
+
+ de_set_rx_mode(dev);
+
+ return 0;
+}
+
+static int de_refill_rx (struct de_private *de)
+{
+ unsigned i;
+
+ for (i = 0; i < DE_RX_RING_SIZE; i++) {
+ struct sk_buff *skb;
+
+ skb = dev_alloc_skb(de->rx_buf_sz);
+ if (!skb)
+ goto err_out;
+
+ skb->dev = de->dev;
+
+ de->rx_skb[i].mapping = pci_map_single(de->pdev,
+ skb->tail, de->rx_buf_sz, PCI_DMA_FROMDEVICE);
+ de->rx_skb[i].skb = skb;
+
+ de->rx_ring[i].opts1 = cpu_to_le32(DescOwn);
+ if (i == (DE_RX_RING_SIZE - 1))
+ de->rx_ring[i].opts2 =
+ cpu_to_le32(RingEnd | de->rx_buf_sz);
+ else
+ de->rx_ring[i].opts2 = cpu_to_le32(de->rx_buf_sz);
+ de->rx_ring[i].addr1 = cpu_to_le32(de->rx_skb[i].mapping);
+ de->rx_ring[i].addr2 = 0;
+ }
+
+ return 0;
+
+err_out:
+ de_clean_rings(de);
+ return -ENOMEM;
+}
+
+static int de_init_rings (struct de_private *de)
+{
+ memset(de->tx_ring, 0, sizeof(struct de_desc) * DE_TX_RING_SIZE);
+ de->tx_ring[DE_TX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd);
+
+ de->rx_tail = 0;
+ de->tx_head = de->tx_tail = 0;
+
+ return de_refill_rx (de);
+}
+
+static int de_alloc_rings (struct de_private *de)
+{
+ de->rx_ring = pci_alloc_consistent(de->pdev, DE_RING_BYTES, &de->ring_dma);
+ if (!de->rx_ring)
+ return -ENOMEM;
+ de->tx_ring = &de->rx_ring[DE_RX_RING_SIZE];
+ return de_init_rings(de);
+}
+
+static void de_clean_rings (struct de_private *de)
+{
+ unsigned i;
+
+ memset(de->rx_ring, 0, sizeof(struct de_desc) * DE_RX_RING_SIZE);
+ de->rx_ring[DE_RX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd);
+ wmb();
+ memset(de->tx_ring, 0, sizeof(struct de_desc) * DE_TX_RING_SIZE);
+ de->tx_ring[DE_TX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd);
+ wmb();
+
+ for (i = 0; i < DE_RX_RING_SIZE; i++) {
+ if (de->rx_skb[i].skb) {
+ pci_unmap_single(de->pdev, de->rx_skb[i].mapping,
+ de->rx_buf_sz, PCI_DMA_FROMDEVICE);
+ dev_kfree_skb(de->rx_skb[i].skb);
+ }
+ }
+
+ for (i = 0; i < DE_TX_RING_SIZE; i++) {
+ struct sk_buff *skb = de->tx_skb[i].skb;
+ if ((skb) && (skb != DE_DUMMY_SKB)) {
+ if (skb != DE_SETUP_SKB) {
+ dev_kfree_skb(skb);
+ de->net_stats.tx_dropped++;
+ pci_unmap_single(de->pdev,
+ de->tx_skb[i].mapping,
+ skb->len, PCI_DMA_TODEVICE);
+ } else {
+ pci_unmap_single(de->pdev,
+ de->tx_skb[i].mapping,
+ sizeof(de->setup_frame),
+ PCI_DMA_TODEVICE);
+ }
+ }
+ }
+
+ memset(&de->rx_skb, 0, sizeof(struct ring_info) * DE_RX_RING_SIZE);
+ memset(&de->tx_skb, 0, sizeof(struct ring_info) * DE_TX_RING_SIZE);
+}
+
+static void de_free_rings (struct de_private *de)
+{
+ de_clean_rings(de);
+ pci_free_consistent(de->pdev, DE_RING_BYTES, de->rx_ring, de->ring_dma);
+ de->rx_ring = NULL;
+ de->tx_ring = NULL;
+}
+
+static int de_open (struct net_device *dev)
+{
+ struct de_private *de = dev->priv;
+ int rc;
+ unsigned long flags;
+
+ if (netif_msg_ifup(de))
+ printk(KERN_DEBUG "%s: enabling interface\n", dev->name);
+
+ de->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32);
+
+ rc = de_alloc_rings(de);
+ if (rc) {
+ printk(KERN_ERR "%s: ring allocation failure, err=%d\n",
+ dev->name, rc);
+ return rc;
+ }
+
+ rc = de_init_hw(de);
+ if (rc) {
+ printk(KERN_ERR "%s: h/w init failure, err=%d\n",
+ dev->name, rc);
+ goto err_out_free;
+ }
+
+ rc = request_irq(dev->irq, de_interrupt, SA_SHIRQ, dev->name, dev);
+ if (rc) {
+ printk(KERN_ERR "%s: IRQ %d request failure, err=%d\n",
+ dev->name, dev->irq, rc);
+ goto err_out_hw;
+ }
+
+ netif_start_queue(dev);
+ mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK);
+
+ return 0;
+
+err_out_hw:
+ spin_lock_irqsave(&de->lock, flags);
+ de_stop_hw(de);
+ spin_unlock_irqrestore(&de->lock, flags);
+
+err_out_free:
+ de_free_rings(de);
+ return rc;
+}
+
+static int de_close (struct net_device *dev)
+{
+ struct de_private *de = dev->priv;
+ unsigned long flags;
+
+ if (netif_msg_ifdown(de))
+ printk(KERN_DEBUG "%s: disabling interface\n", dev->name);
+
+ del_timer_sync(&de->media_timer);
+
+ spin_lock_irqsave(&de->lock, flags);
+ de_stop_hw(de);
+ netif_stop_queue(dev);
+ netif_carrier_off(dev);
+ spin_unlock_irqrestore(&de->lock, flags);
+
+ free_irq(dev->irq, dev);
+
+ de_free_rings(de);
+ de_adapter_sleep(de);
+ pci_disable_device(de->pdev);
+ return 0;
+}
+
+static void de_tx_timeout (struct net_device *dev)
+{
+ struct de_private *de = dev->priv;
+
+ printk(KERN_DEBUG "%s: NIC status %08x mode %08x sia %08x desc %u/%u/%u\n",
+ dev->name, dr32(MacStatus), dr32(MacMode), dr32(SIAStatus),
+ de->rx_tail, de->tx_head, de->tx_tail);
+
+ del_timer_sync(&de->media_timer);
+
+ disable_irq(dev->irq);
+ spin_lock_irq(&de->lock);
+
+ de_stop_hw(de);
+ netif_stop_queue(dev);
+ netif_carrier_off(dev);
+
+ spin_unlock_irq(&de->lock);
+ enable_irq(dev->irq);
+
+ /* Update the error counts. */
+ __de_get_stats(de);
+
+ synchronize_irq(dev->irq);
+ de_clean_rings(de);
+
+ de_init_hw(de);
+
+ netif_wake_queue(dev);
+}
+
+static void __de_get_regs(struct de_private *de, u8 *buf)
+{
+ int i;
+ u32 *rbuf = (u32 *)buf;
+
+ /* read all CSRs */
+ for (i = 0; i < DE_NUM_REGS; i++)
+ rbuf[i] = dr32(i * 8);
+
+ /* handle self-clearing RxMissed counter, CSR8 */
+ de_rx_missed(de, rbuf[8]);
+}
+
+static int __de_get_settings(struct de_private *de, struct ethtool_cmd *ecmd)
+{
+ ecmd->supported = de->media_supported;
+ ecmd->transceiver = XCVR_INTERNAL;
+ ecmd->phy_address = 0;
+ ecmd->advertising = de->media_advertise;
+
+ switch (de->media_type) {
+ case DE_MEDIA_AUI:
+ ecmd->port = PORT_AUI;
+ ecmd->speed = 5;
+ break;
+ case DE_MEDIA_BNC:
+ ecmd->port = PORT_BNC;
+ ecmd->speed = 2;
+ break;
+ default:
+ ecmd->port = PORT_TP;
+ ecmd->speed = SPEED_10;
+ break;
+ }
+
+ if (dr32(MacMode) & FullDuplex)
+ ecmd->duplex = DUPLEX_FULL;
+ else
+ ecmd->duplex = DUPLEX_HALF;
+
+ if (de->media_lock)
+ ecmd->autoneg = AUTONEG_DISABLE;
+ else
+ ecmd->autoneg = AUTONEG_ENABLE;
+
+ /* ignore maxtxpkt, maxrxpkt for now */
+
+ return 0;
+}
+
+static int __de_set_settings(struct de_private *de, struct ethtool_cmd *ecmd)
+{
+ u32 new_media;
+ unsigned int media_lock;
+
+ if (ecmd->speed != SPEED_10 && ecmd->speed != 5 && ecmd->speed != 2)
+ return -EINVAL;
+ if (de->de21040 && ecmd->speed == 2)
+ return -EINVAL;
+ if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
+ return -EINVAL;
+ if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI && ecmd->port != PORT_BNC)
+ return -EINVAL;
+ if (de->de21040 && ecmd->port == PORT_BNC)
+ return -EINVAL;
+ if (ecmd->transceiver != XCVR_INTERNAL)
+ return -EINVAL;
+ if (ecmd->autoneg != AUTONEG_DISABLE && ecmd->autoneg != AUTONEG_ENABLE)
+ return -EINVAL;
+ if (ecmd->advertising & ~de->media_supported)
+ return -EINVAL;
+ if (ecmd->autoneg == AUTONEG_ENABLE &&
+ (!(ecmd->advertising & ADVERTISED_Autoneg)))
+ return -EINVAL;
+
+ switch (ecmd->port) {
+ case PORT_AUI:
+ new_media = DE_MEDIA_AUI;
+ if (!(ecmd->advertising & ADVERTISED_AUI))
+ return -EINVAL;
+ break;
+ case PORT_BNC:
+ new_media = DE_MEDIA_BNC;
+ if (!(ecmd->advertising & ADVERTISED_BNC))
+ return -EINVAL;
+ break;
+ default:
+ if (ecmd->autoneg == AUTONEG_ENABLE)
+ new_media = DE_MEDIA_TP_AUTO;
+ else if (ecmd->duplex == DUPLEX_FULL)
+ new_media = DE_MEDIA_TP_FD;
+ else
+ new_media = DE_MEDIA_TP;
+ if (!(ecmd->advertising & ADVERTISED_TP))
+ return -EINVAL;
+ if (!(ecmd->advertising & (ADVERTISED_10baseT_Full | ADVERTISED_10baseT_Half)))
+ return -EINVAL;
+ break;
+ }
+
+ media_lock = (ecmd->autoneg == AUTONEG_ENABLE) ? 0 : 1;
+
+ if ((new_media == de->media_type) &&
+ (media_lock == de->media_lock) &&
+ (ecmd->advertising == de->media_advertise))
+ return 0; /* nothing to change */
+
+ de_link_down(de);
+ de_stop_rxtx(de);
+
+ de->media_type = new_media;
+ de->media_lock = media_lock;
+ de->media_advertise = ecmd->advertising;
+ de_set_media(de);
+
+ return 0;
+}
+
+static void de_get_drvinfo (struct net_device *dev,struct ethtool_drvinfo *info)
+{
+ struct de_private *de = dev->priv;
+
+ strcpy (info->driver, DRV_NAME);
+ strcpy (info->version, DRV_VERSION);
+ strcpy (info->bus_info, pci_name(de->pdev));
+ info->eedump_len = DE_EEPROM_SIZE;
+}
+
+static int de_get_regs_len(struct net_device *dev)
+{
+ return DE_REGS_SIZE;
+}
+
+static int de_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ struct de_private *de = dev->priv;
+ int rc;
+
+ spin_lock_irq(&de->lock);
+ rc = __de_get_settings(de, ecmd);
+ spin_unlock_irq(&de->lock);
+
+ return rc;
+}
+
+static int de_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ struct de_private *de = dev->priv;
+ int rc;
+
+ spin_lock_irq(&de->lock);
+ rc = __de_set_settings(de, ecmd);
+ spin_unlock_irq(&de->lock);
+
+ return rc;
+}
+
+static u32 de_get_msglevel(struct net_device *dev)
+{
+ struct de_private *de = dev->priv;
+
+ return de->msg_enable;
+}
+
+static void de_set_msglevel(struct net_device *dev, u32 msglvl)
+{
+ struct de_private *de = dev->priv;
+
+ de->msg_enable = msglvl;
+}
+
+static int de_get_eeprom(struct net_device *dev,
+ struct ethtool_eeprom *eeprom, u8 *data)
+{
+ struct de_private *de = dev->priv;
+
+ if (!de->ee_data)
+ return -EOPNOTSUPP;
+ if ((eeprom->offset != 0) || (eeprom->magic != 0) ||
+ (eeprom->len != DE_EEPROM_SIZE))
+ return -EINVAL;
+ memcpy(data, de->ee_data, eeprom->len);
+
+ return 0;
+}
+
+static int de_nway_reset(struct net_device *dev)
+{
+ struct de_private *de = dev->priv;
+ u32 status;
+
+ if (de->media_type != DE_MEDIA_TP_AUTO)
+ return -EINVAL;
+ if (netif_carrier_ok(de->dev))
+ de_link_down(de);
+
+ status = dr32(SIAStatus);
+ dw32(SIAStatus, (status & ~NWayState) | NWayRestart);
+ if (netif_msg_link(de))
+ printk(KERN_INFO "%s: link nway restart, status %x,%x\n",
+ de->dev->name, status, dr32(SIAStatus));
+ return 0;
+}
+
+static void de_get_regs(struct net_device *dev, struct ethtool_regs *regs,
+ void *data)
+{
+ struct de_private *de = dev->priv;
+
+ regs->version = (DE_REGS_VER << 2) | de->de21040;
+
+ spin_lock_irq(&de->lock);
+ __de_get_regs(de, data);
+ spin_unlock_irq(&de->lock);
+}
+
+static struct ethtool_ops de_ethtool_ops = {
+ .get_link = ethtool_op_get_link,
+ .get_tx_csum = ethtool_op_get_tx_csum,
+ .get_sg = ethtool_op_get_sg,
+ .get_drvinfo = de_get_drvinfo,
+ .get_regs_len = de_get_regs_len,
+ .get_settings = de_get_settings,
+ .set_settings = de_set_settings,
+ .get_msglevel = de_get_msglevel,
+ .set_msglevel = de_set_msglevel,
+ .get_eeprom = de_get_eeprom,
+ .nway_reset = de_nway_reset,
+ .get_regs = de_get_regs,
+};
+
+static void __init de21040_get_mac_address (struct de_private *de)
+{
+ unsigned i;
+
+ dw32 (ROMCmd, 0); /* Reset the pointer with a dummy write. */
+
+ for (i = 0; i < 6; i++) {
+ int value, boguscnt = 100000;
+ do
+ value = dr32(ROMCmd);
+ while (value < 0 && --boguscnt > 0);
+ de->dev->dev_addr[i] = value;
+ udelay(1);
+ if (boguscnt <= 0)
+ printk(KERN_WARNING PFX "timeout reading 21040 MAC address byte %u\n", i);
+ }
+}
+
+static void __init de21040_get_media_info(struct de_private *de)
+{
+ unsigned int i;
+
+ de->media_type = DE_MEDIA_TP;
+ de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Full |
+ SUPPORTED_10baseT_Half | SUPPORTED_AUI;
+ de->media_advertise = de->media_supported;
+
+ for (i = 0; i < DE_MAX_MEDIA; i++) {
+ switch (i) {
+ case DE_MEDIA_AUI:
+ case DE_MEDIA_TP:
+ case DE_MEDIA_TP_FD:
+ de->media[i].type = i;
+ de->media[i].csr13 = t21040_csr13[i];
+ de->media[i].csr14 = t21040_csr14[i];
+ de->media[i].csr15 = t21040_csr15[i];
+ break;
+ default:
+ de->media[i].type = DE_MEDIA_INVALID;
+ break;
+ }
+ }
+}
+
+/* Note: this routine returns extra data bits for size detection. */
+static unsigned __init tulip_read_eeprom(void __iomem *regs, int location, int addr_len)
+{
+ int i;
+ unsigned retval = 0;
+ void __iomem *ee_addr = regs + ROMCmd;
+ int read_cmd = location | (EE_READ_CMD << addr_len);
+
+ writel(EE_ENB & ~EE_CS, ee_addr);
+ writel(EE_ENB, ee_addr);
+
+ /* Shift the read command bits out. */
+ for (i = 4 + addr_len; i >= 0; i--) {
+ short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
+ writel(EE_ENB | dataval, ee_addr);
+ readl(ee_addr);
+ writel(EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
+ readl(ee_addr);
+ retval = (retval << 1) | ((readl(ee_addr) & EE_DATA_READ) ? 1 : 0);
+ }
+ writel(EE_ENB, ee_addr);
+ readl(ee_addr);
+
+ for (i = 16; i > 0; i--) {
+ writel(EE_ENB | EE_SHIFT_CLK, ee_addr);
+ readl(ee_addr);
+ retval = (retval << 1) | ((readl(ee_addr) & EE_DATA_READ) ? 1 : 0);
+ writel(EE_ENB, ee_addr);
+ readl(ee_addr);
+ }
+
+ /* Terminate the EEPROM access. */
+ writel(EE_ENB & ~EE_CS, ee_addr);
+ return retval;
+}
+
+static void __init de21041_get_srom_info (struct de_private *de)
+{
+ unsigned i, sa_offset = 0, ofs;
+ u8 ee_data[DE_EEPROM_SIZE + 6] = {};
+ unsigned ee_addr_size = tulip_read_eeprom(de->regs, 0xff, 8) & 0x40000 ? 8 : 6;
+ struct de_srom_info_leaf *il;
+ void *bufp;
+
+ /* download entire eeprom */
+ for (i = 0; i < DE_EEPROM_WORDS; i++)
+ ((u16 *)ee_data)[i] =
+ le16_to_cpu(tulip_read_eeprom(de->regs, i, ee_addr_size));
+
+ /* DEC now has a specification but early board makers
+ just put the address in the first EEPROM locations. */
+ /* This does memcmp(eedata, eedata+16, 8) */
+ for (i = 0; i < 8; i ++)
+ if (ee_data[i] != ee_data[16+i])
+ sa_offset = 20;
+
+ /* store MAC address */
+ for (i = 0; i < 6; i ++)
+ de->dev->dev_addr[i] = ee_data[i + sa_offset];
+
+ /* get offset of controller 0 info leaf. ignore 2nd byte. */
+ ofs = ee_data[SROMC0InfoLeaf];
+ if (ofs >= (sizeof(ee_data) - sizeof(struct de_srom_info_leaf) - sizeof(struct de_srom_media_block)))
+ goto bad_srom;
+
+ /* get pointer to info leaf */
+ il = (struct de_srom_info_leaf *) &ee_data[ofs];
+
+ /* paranoia checks */
+ if (il->n_blocks == 0)
+ goto bad_srom;
+ if ((sizeof(ee_data) - ofs) <
+ (sizeof(struct de_srom_info_leaf) + (sizeof(struct de_srom_media_block) * il->n_blocks)))
+ goto bad_srom;
+
+ /* get default media type */
+ switch (DE_UNALIGNED_16(&il->default_media)) {
+ case 0x0001: de->media_type = DE_MEDIA_BNC; break;
+ case 0x0002: de->media_type = DE_MEDIA_AUI; break;
+ case 0x0204: de->media_type = DE_MEDIA_TP_FD; break;
+ default: de->media_type = DE_MEDIA_TP_AUTO; break;
+ }
+
+ if (netif_msg_probe(de))
+ printk(KERN_INFO "de%d: SROM leaf offset %u, default media %s\n",
+ de->board_idx, ofs,
+ media_name[de->media_type]);
+
+ /* init SIA register values to defaults */
+ for (i = 0; i < DE_MAX_MEDIA; i++) {
+ de->media[i].type = DE_MEDIA_INVALID;
+ de->media[i].csr13 = 0xffff;
+ de->media[i].csr14 = 0xffff;
+ de->media[i].csr15 = 0xffff;
+ }
+
+ /* parse media blocks to see what medias are supported,
+ * and if any custom CSR values are provided
+ */
+ bufp = ((void *)il) + sizeof(*il);
+ for (i = 0; i < il->n_blocks; i++) {
+ struct de_srom_media_block *ib = bufp;
+ unsigned idx;
+
+ /* index based on media type in media block */
+ switch(ib->opts & MediaBlockMask) {
+ case 0: /* 10baseT */
+ de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half
+ | SUPPORTED_Autoneg;
+ idx = DE_MEDIA_TP;
+ de->media[DE_MEDIA_TP_AUTO].type = DE_MEDIA_TP_AUTO;
+ break;
+ case 1: /* BNC */
+ de->media_supported |= SUPPORTED_BNC;
+ idx = DE_MEDIA_BNC;
+ break;
+ case 2: /* AUI */
+ de->media_supported |= SUPPORTED_AUI;
+ idx = DE_MEDIA_AUI;
+ break;
+ case 4: /* 10baseT-FD */
+ de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Full
+ | SUPPORTED_Autoneg;
+ idx = DE_MEDIA_TP_FD;
+ de->media[DE_MEDIA_TP_AUTO].type = DE_MEDIA_TP_AUTO;
+ break;
+ default:
+ goto bad_srom;
+ }
+
+ de->media[idx].type = idx;
+
+ if (netif_msg_probe(de))
+ printk(KERN_INFO "de%d: media block #%u: %s",
+ de->board_idx, i,
+ media_name[de->media[idx].type]);
+
+ bufp += sizeof (ib->opts);
+
+ if (ib->opts & MediaCustomCSRs) {
+ de->media[idx].csr13 = DE_UNALIGNED_16(&ib->csr13);
+ de->media[idx].csr14 = DE_UNALIGNED_16(&ib->csr14);
+ de->media[idx].csr15 = DE_UNALIGNED_16(&ib->csr15);
+ bufp += sizeof(ib->csr13) + sizeof(ib->csr14) +
+ sizeof(ib->csr15);
+
+ if (netif_msg_probe(de))
+ printk(" (%x,%x,%x)\n",
+ de->media[idx].csr13,
+ de->media[idx].csr14,
+ de->media[idx].csr15);
+
+ } else if (netif_msg_probe(de))
+ printk("\n");
+
+ if (bufp > ((void *)&ee_data[DE_EEPROM_SIZE - 3]))
+ break;
+ }
+
+ de->media_advertise = de->media_supported;
+
+fill_defaults:
+ /* fill in defaults, for cases where custom CSRs not used */
+ for (i = 0; i < DE_MAX_MEDIA; i++) {
+ if (de->media[i].csr13 == 0xffff)
+ de->media[i].csr13 = t21041_csr13[i];
+ if (de->media[i].csr14 == 0xffff)
+ de->media[i].csr14 = t21041_csr14[i];
+ if (de->media[i].csr15 == 0xffff)
+ de->media[i].csr15 = t21041_csr15[i];
+ }
+
+ de->ee_data = kmalloc(DE_EEPROM_SIZE, GFP_KERNEL);
+ if (de->ee_data)
+ memcpy(de->ee_data, &ee_data[0], DE_EEPROM_SIZE);
+
+ return;
+
+bad_srom:
+ /* for error cases, it's ok to assume we support all these */
+ for (i = 0; i < DE_MAX_MEDIA; i++)
+ de->media[i].type = i;
+ de->media_supported =
+ SUPPORTED_10baseT_Half |
+ SUPPORTED_10baseT_Full |
+ SUPPORTED_Autoneg |
+ SUPPORTED_TP |
+ SUPPORTED_AUI |
+ SUPPORTED_BNC;
+ goto fill_defaults;
+}
+
+static int __init de_init_one (struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ struct net_device *dev;
+ struct de_private *de;
+ int rc;
+ void __iomem *regs;
+ long pciaddr;
+ static int board_idx = -1;
+
+ board_idx++;
+
+#ifndef MODULE
+ if (board_idx == 0)
+ printk("%s", version);
+#endif
+
+ /* allocate a new ethernet device structure, and fill in defaults */
+ dev = alloc_etherdev(sizeof(struct de_private));
+ if (!dev)
+ return -ENOMEM;
+
+ SET_MODULE_OWNER(dev);
+ SET_NETDEV_DEV(dev, &pdev->dev);
+ dev->open = de_open;
+ dev->stop = de_close;
+ dev->set_multicast_list = de_set_rx_mode;
+ dev->hard_start_xmit = de_start_xmit;
+ dev->get_stats = de_get_stats;
+ dev->ethtool_ops = &de_ethtool_ops;
+ dev->tx_timeout = de_tx_timeout;
+ dev->watchdog_timeo = TX_TIMEOUT;
+
+ de = dev->priv;
+ de->de21040 = ent->driver_data == 0 ? 1 : 0;
+ de->pdev = pdev;
+ de->dev = dev;
+ de->msg_enable = (debug < 0 ? DE_DEF_MSG_ENABLE : debug);
+ de->board_idx = board_idx;
+ spin_lock_init (&de->lock);
+ init_timer(&de->media_timer);
+ if (de->de21040)
+ de->media_timer.function = de21040_media_timer;
+ else
+ de->media_timer.function = de21041_media_timer;
+ de->media_timer.data = (unsigned long) de;
+
+ netif_carrier_off(dev);
+ netif_stop_queue(dev);
+
+ /* wake up device, assign resources */
+ rc = pci_enable_device(pdev);
+ if (rc)
+ goto err_out_free;
+
+ /* reserve PCI resources to ensure driver atomicity */
+ rc = pci_request_regions(pdev, DRV_NAME);
+ if (rc)
+ goto err_out_disable;
+
+ /* check for invalid IRQ value */
+ if (pdev->irq < 2) {
+ rc = -EIO;
+ printk(KERN_ERR PFX "invalid irq (%d) for pci dev %s\n",
+ pdev->irq, pci_name(pdev));
+ goto err_out_res;
+ }
+
+ dev->irq = pdev->irq;
+
+ /* obtain and check validity of PCI I/O address */
+ pciaddr = pci_resource_start(pdev, 1);
+ if (!pciaddr) {
+ rc = -EIO;
+ printk(KERN_ERR PFX "no MMIO resource for pci dev %s\n",
+ pci_name(pdev));
+ goto err_out_res;
+ }
+ if (pci_resource_len(pdev, 1) < DE_REGS_SIZE) {
+ rc = -EIO;
+ printk(KERN_ERR PFX "MMIO resource (%lx) too small on pci dev %s\n",
+ pci_resource_len(pdev, 1), pci_name(pdev));
+ goto err_out_res;
+ }
+
+ /* remap CSR registers */
+ regs = ioremap_nocache(pciaddr, DE_REGS_SIZE);
+ if (!regs) {
+ rc = -EIO;
+ printk(KERN_ERR PFX "Cannot map PCI MMIO (%lx@%lx) on pci dev %s\n",
+ pci_resource_len(pdev, 1), pciaddr, pci_name(pdev));
+ goto err_out_res;
+ }
+ dev->base_addr = (unsigned long) regs;
+ de->regs = regs;
+
+ de_adapter_wake(de);
+
+ /* make sure hardware is not running */
+ rc = de_reset_mac(de);
+ if (rc) {
+ printk(KERN_ERR PFX "Cannot reset MAC, pci dev %s\n",
+ pci_name(pdev));
+ goto err_out_iomap;
+ }
+
+ /* get MAC address, initialize default media type and
+ * get list of supported media
+ */
+ if (de->de21040) {
+ de21040_get_mac_address(de);
+ de21040_get_media_info(de);
+ } else {
+ de21041_get_srom_info(de);
+ }
+
+ /* register new network interface with kernel */
+ rc = register_netdev(dev);
+ if (rc)
+ goto err_out_iomap;
+
+ /* print info about board and interface just registered */
+ printk (KERN_INFO "%s: %s at 0x%lx, "
+ "%02x:%02x:%02x:%02x:%02x:%02x, "
+ "IRQ %d\n",
+ dev->name,
+ de->de21040 ? "21040" : "21041",
+ dev->base_addr,
+ dev->dev_addr[0], dev->dev_addr[1],
+ dev->dev_addr[2], dev->dev_addr[3],
+ dev->dev_addr[4], dev->dev_addr[5],
+ dev->irq);
+
+ pci_set_drvdata(pdev, dev);
+
+ /* enable busmastering */
+ pci_set_master(pdev);
+
+ /* put adapter to sleep */
+ de_adapter_sleep(de);
+
+ return 0;
+
+err_out_iomap:
+ if (de->ee_data)
+ kfree(de->ee_data);
+ iounmap(regs);
+err_out_res:
+ pci_release_regions(pdev);
+err_out_disable:
+ pci_disable_device(pdev);
+err_out_free:
+ free_netdev(dev);
+ return rc;
+}
+
+static void __exit de_remove_one (struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct de_private *de = dev->priv;
+
+ if (!dev)
+ BUG();
+ unregister_netdev(dev);
+ if (de->ee_data)
+ kfree(de->ee_data);
+ iounmap(de->regs);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ free_netdev(dev);
+}
+
+#ifdef CONFIG_PM
+
+static int de_suspend (struct pci_dev *pdev, u32 state)
+{
+ struct net_device *dev = pci_get_drvdata (pdev);
+ struct de_private *de = dev->priv;
+
+ rtnl_lock();
+ if (netif_running (dev)) {
+ del_timer_sync(&de->media_timer);
+
+ disable_irq(dev->irq);
+ spin_lock_irq(&de->lock);
+
+ de_stop_hw(de);
+ netif_stop_queue(dev);
+ netif_device_detach(dev);
+ netif_carrier_off(dev);
+
+ spin_unlock_irq(&de->lock);
+ enable_irq(dev->irq);
+
+ /* Update the error counts. */
+ __de_get_stats(de);
+
+ synchronize_irq(dev->irq);
+ de_clean_rings(de);
+
+ de_adapter_sleep(de);
+ pci_disable_device(pdev);
+ } else {
+ netif_device_detach(dev);
+ }
+ rtnl_unlock();
+ return 0;
+}
+
+static int de_resume (struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata (pdev);
+ struct de_private *de = dev->priv;
+
+ rtnl_lock();
+ if (netif_device_present(dev))
+ goto out;
+ if (netif_running(dev)) {
+ pci_enable_device(pdev);
+ de_init_hw(de);
+ netif_device_attach(dev);
+ } else {
+ netif_device_attach(dev);
+ }
+out:
+ rtnl_unlock();
+ return 0;
+}
+
+#endif /* CONFIG_PM */
+
+static struct pci_driver de_driver = {
+ .name = DRV_NAME,
+ .id_table = de_pci_tbl,
+ .probe = de_init_one,
+ .remove = __exit_p(de_remove_one),
+#ifdef CONFIG_PM
+ .suspend = de_suspend,
+ .resume = de_resume,
+#endif
+};
+
+static int __init de_init (void)
+{
+#ifdef MODULE
+ printk("%s", version);
+#endif
+ return pci_module_init (&de_driver);
+}
+
+static void __exit de_exit (void)
+{
+ pci_unregister_driver (&de_driver);
+}
+
+module_init(de_init);
+module_exit(de_exit);
diff --git a/drivers/net/tulip/de4x5.c b/drivers/net/tulip/de4x5.c
new file mode 100644
index 000000000000..93800c126e86
--- /dev/null
+++ b/drivers/net/tulip/de4x5.c
@@ -0,0 +1,5778 @@
+/* de4x5.c: A DIGITAL DC21x4x DECchip and DE425/DE434/DE435/DE450/DE500
+ ethernet driver for Linux.
+
+ Copyright 1994, 1995 Digital Equipment Corporation.
+
+ Testing resources for this driver have been made available
+ in part by NASA Ames Research Center (mjacob@nas.nasa.gov).
+
+ The author may be reached at davies@maniac.ultranet.com.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2 of the License, or (at your
+ option) any later version.
+
+ THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ Originally, this driver was written for the Digital Equipment
+ Corporation series of EtherWORKS ethernet cards:
+
+ DE425 TP/COAX EISA
+ DE434 TP PCI
+ DE435 TP/COAX/AUI PCI
+ DE450 TP/COAX/AUI PCI
+ DE500 10/100 PCI Fasternet
+
+ but it will now attempt to support all cards which conform to the
+ Digital Semiconductor SROM Specification. The driver currently
+ recognises the following chips:
+
+ DC21040 (no SROM)
+ DC21041[A]
+ DC21140[A]
+ DC21142
+ DC21143
+
+ So far the driver is known to work with the following cards:
+
+ KINGSTON
+ Linksys
+ ZNYX342
+ SMC8432
+ SMC9332 (w/new SROM)
+ ZNYX31[45]
+ ZNYX346 10/100 4 port (can act as a 10/100 bridge!)
+
+ The driver has been tested on a relatively busy network using the DE425,
+ DE434, DE435 and DE500 cards and benchmarked with 'ttcp': it transferred
+ 16M of data to a DECstation 5000/200 as follows:
+
+ TCP UDP
+ TX RX TX RX
+ DE425 1030k 997k 1170k 1128k
+ DE434 1063k 995k 1170k 1125k
+ DE435 1063k 995k 1170k 1125k
+ DE500 1063k 998k 1170k 1125k in 10Mb/s mode
+
+ All values are typical (in kBytes/sec) from a sample of 4 for each
+ measurement. Their error is +/-20k on a quiet (private) network and also
+ depend on what load the CPU has.
+
+ =========================================================================
+ This driver has been written substantially from scratch, although its
+ inheritance of style and stack interface from 'ewrk3.c' and in turn from
+ Donald Becker's 'lance.c' should be obvious. With the module autoload of
+ every usable DECchip board, I pinched Donald's 'next_module' field to
+ link my modules together.
+
+ Upto 15 EISA cards can be supported under this driver, limited primarily
+ by the available IRQ lines. I have checked different configurations of
+ multiple depca, EtherWORKS 3 cards and de4x5 cards and have not found a
+ problem yet (provided you have at least depca.c v0.38) ...
+
+ PCI support has been added to allow the driver to work with the DE434,
+ DE435, DE450 and DE500 cards. The I/O accesses are a bit of a kludge due
+ to the differences in the EISA and PCI CSR address offsets from the base
+ address.
+
+ The ability to load this driver as a loadable module has been included
+ and used extensively during the driver development (to save those long
+ reboot sequences). Loadable module support under PCI and EISA has been
+ achieved by letting the driver autoprobe as if it were compiled into the
+ kernel. Do make sure you're not sharing interrupts with anything that
+ cannot accommodate interrupt sharing!
+
+ To utilise this ability, you have to do 8 things:
+
+ 0) have a copy of the loadable modules code installed on your system.
+ 1) copy de4x5.c from the /linux/drivers/net directory to your favourite
+ temporary directory.
+ 2) for fixed autoprobes (not recommended), edit the source code near
+ line 5594 to reflect the I/O address you're using, or assign these when
+ loading by:
+
+ insmod de4x5 io=0xghh where g = bus number
+ hh = device number
+
+ NB: autoprobing for modules is now supported by default. You may just
+ use:
+
+ insmod de4x5
+
+ to load all available boards. For a specific board, still use
+ the 'io=?' above.
+ 3) compile de4x5.c, but include -DMODULE in the command line to ensure
+ that the correct bits are compiled (see end of source code).
+ 4) if you are wanting to add a new card, goto 5. Otherwise, recompile a
+ kernel with the de4x5 configuration turned off and reboot.
+ 5) insmod de4x5 [io=0xghh]
+ 6) run the net startup bits for your new eth?? interface(s) manually
+ (usually /etc/rc.inet[12] at boot time).
+ 7) enjoy!
+
+ To unload a module, turn off the associated interface(s)
+ 'ifconfig eth?? down' then 'rmmod de4x5'.
+
+ Automedia detection is included so that in principal you can disconnect
+ from, e.g. TP, reconnect to BNC and things will still work (after a
+ pause whilst the driver figures out where its media went). My tests
+ using ping showed that it appears to work....
+
+ By default, the driver will now autodetect any DECchip based card.
+ Should you have a need to restrict the driver to DIGITAL only cards, you
+ can compile with a DEC_ONLY define, or if loading as a module, use the
+ 'dec_only=1' parameter.
+
+ I've changed the timing routines to use the kernel timer and scheduling
+ functions so that the hangs and other assorted problems that occurred
+ while autosensing the media should be gone. A bonus for the DC21040
+ auto media sense algorithm is that it can now use one that is more in
+ line with the rest (the DC21040 chip doesn't have a hardware timer).
+ The downside is the 1 'jiffies' (10ms) resolution.
+
+ IEEE 802.3u MII interface code has been added in anticipation that some
+ products may use it in the future.
+
+ The SMC9332 card has a non-compliant SROM which needs fixing - I have
+ patched this driver to detect it because the SROM format used complies
+ to a previous DEC-STD format.
+
+ I have removed the buffer copies needed for receive on Intels. I cannot
+ remove them for Alphas since the Tulip hardware only does longword
+ aligned DMA transfers and the Alphas get alignment traps with non
+ longword aligned data copies (which makes them really slow). No comment.
+
+ I have added SROM decoding routines to make this driver work with any
+ card that supports the Digital Semiconductor SROM spec. This will help
+ all cards running the dc2114x series chips in particular. Cards using
+ the dc2104x chips should run correctly with the basic driver. I'm in
+ debt to <mjacob@feral.com> for the testing and feedback that helped get
+ this feature working. So far we have tested KINGSTON, SMC8432, SMC9332
+ (with the latest SROM complying with the SROM spec V3: their first was
+ broken), ZNYX342 and LinkSys. ZYNX314 (dual 21041 MAC) and ZNYX 315
+ (quad 21041 MAC) cards also appear to work despite their incorrectly
+ wired IRQs.
+
+ I have added a temporary fix for interrupt problems when some SCSI cards
+ share the same interrupt as the DECchip based cards. The problem occurs
+ because the SCSI card wants to grab the interrupt as a fast interrupt
+ (runs the service routine with interrupts turned off) vs. this card
+ which really needs to run the service routine with interrupts turned on.
+ This driver will now add the interrupt service routine as a fast
+ interrupt if it is bounced from the slow interrupt. THIS IS NOT A
+ RECOMMENDED WAY TO RUN THE DRIVER and has been done for a limited time
+ until people sort out their compatibility issues and the kernel
+ interrupt service code is fixed. YOU SHOULD SEPARATE OUT THE FAST
+ INTERRUPT CARDS FROM THE SLOW INTERRUPT CARDS to ensure that they do not
+ run on the same interrupt. PCMCIA/CardBus is another can of worms...
+
+ Finally, I think I have really fixed the module loading problem with
+ more than one DECchip based card. As a side effect, I don't mess with
+ the device structure any more which means that if more than 1 card in
+ 2.0.x is installed (4 in 2.1.x), the user will have to edit
+ linux/drivers/net/Space.c to make room for them. Hence, module loading
+ is the preferred way to use this driver, since it doesn't have this
+ limitation.
+
+ Where SROM media detection is used and full duplex is specified in the
+ SROM, the feature is ignored unless lp->params.fdx is set at compile
+ time OR during a module load (insmod de4x5 args='eth??:fdx' [see
+ below]). This is because there is no way to automatically detect full
+ duplex links except through autonegotiation. When I include the
+ autonegotiation feature in the SROM autoconf code, this detection will
+ occur automatically for that case.
+
+ Command line arguments are now allowed, similar to passing arguments
+ through LILO. This will allow a per adapter board set up of full duplex
+ and media. The only lexical constraints are: the board name (dev->name)
+ appears in the list before its parameters. The list of parameters ends
+ either at the end of the parameter list or with another board name. The
+ following parameters are allowed:
+
+ fdx for full duplex
+ autosense to set the media/speed; with the following
+ sub-parameters:
+ TP, TP_NW, BNC, AUI, BNC_AUI, 100Mb, 10Mb, AUTO
+
+ Case sensitivity is important for the sub-parameters. They *must* be
+ upper case. Examples:
+
+ insmod de4x5 args='eth1:fdx autosense=BNC eth0:autosense=100Mb'.
+
+ For a compiled in driver, at or above line 548, place e.g.
+ #define DE4X5_PARM "eth0:fdx autosense=AUI eth2:autosense=TP"
+
+ Yes, I know full duplex isn't permissible on BNC or AUI; they're just
+ examples. By default, full duplex is turned off and AUTO is the default
+ autosense setting. In reality, I expect only the full duplex option to
+ be used. Note the use of single quotes in the two examples above and the
+ lack of commas to separate items. ALSO, you must get the requested media
+ correct in relation to what the adapter SROM says it has. There's no way
+ to determine this in advance other than by trial and error and common
+ sense, e.g. call a BNC connectored port 'BNC', not '10Mb'.
+
+ Changed the bus probing. EISA used to be done first, followed by PCI.
+ Most people probably don't even know what a de425 is today and the EISA
+ probe has messed up some SCSI cards in the past, so now PCI is always
+ probed first followed by EISA if a) the architecture allows EISA and
+ either b) there have been no PCI cards detected or c) an EISA probe is
+ forced by the user. To force a probe include "force_eisa" in your
+ insmod "args" line; for built-in kernels either change the driver to do
+ this automatically or include #define DE4X5_FORCE_EISA on or before
+ line 1040 in the driver.
+
+ TO DO:
+ ------
+
+ Revision History
+ ----------------
+
+ Version Date Description
+
+ 0.1 17-Nov-94 Initial writing. ALPHA code release.
+ 0.2 13-Jan-95 Added PCI support for DE435's.
+ 0.21 19-Jan-95 Added auto media detection.
+ 0.22 10-Feb-95 Fix interrupt handler call <chris@cosy.sbg.ac.at>.
+ Fix recognition bug reported by <bkm@star.rl.ac.uk>.
+ Add request/release_region code.
+ Add loadable modules support for PCI.
+ Clean up loadable modules support.
+ 0.23 28-Feb-95 Added DC21041 and DC21140 support.
+ Fix missed frame counter value and initialisation.
+ Fixed EISA probe.
+ 0.24 11-Apr-95 Change delay routine to use <linux/udelay>.
+ Change TX_BUFFS_AVAIL macro.
+ Change media autodetection to allow manual setting.
+ Completed DE500 (DC21140) support.
+ 0.241 18-Apr-95 Interim release without DE500 Autosense Algorithm.
+ 0.242 10-May-95 Minor changes.
+ 0.30 12-Jun-95 Timer fix for DC21140.
+ Portability changes.
+ Add ALPHA changes from <jestabro@ant.tay1.dec.com>.
+ Add DE500 semi automatic autosense.
+ Add Link Fail interrupt TP failure detection.
+ Add timer based link change detection.
+ Plugged a memory leak in de4x5_queue_pkt().
+ 0.31 13-Jun-95 Fixed PCI stuff for 1.3.1.
+ 0.32 26-Jun-95 Added verify_area() calls in de4x5_ioctl() from a
+ suggestion by <heiko@colossus.escape.de>.
+ 0.33 8-Aug-95 Add shared interrupt support (not released yet).
+ 0.331 21-Aug-95 Fix de4x5_open() with fast CPUs.
+ Fix de4x5_interrupt().
+ Fix dc21140_autoconf() mess.
+ No shared interrupt support.
+ 0.332 11-Sep-95 Added MII management interface routines.
+ 0.40 5-Mar-96 Fix setup frame timeout <maartenb@hpkuipc.cern.ch>.
+ Add kernel timer code (h/w is too flaky).
+ Add MII based PHY autosense.
+ Add new multicasting code.
+ Add new autosense algorithms for media/mode
+ selection using kernel scheduling/timing.
+ Re-formatted.
+ Made changes suggested by <jeff@router.patch.net>:
+ Change driver to detect all DECchip based cards
+ with DEC_ONLY restriction a special case.
+ Changed driver to autoprobe as a module. No irq
+ checking is done now - assume BIOS is good!
+ Added SMC9332 detection <manabe@Roy.dsl.tutics.ac.jp>
+ 0.41 21-Mar-96 Don't check for get_hw_addr checksum unless DEC card
+ only <niles@axp745gsfc.nasa.gov>
+ Fix for multiple PCI cards reported by <jos@xos.nl>
+ Duh, put the SA_SHIRQ flag into request_interrupt().
+ Fix SMC ethernet address in enet_det[].
+ Print chip name instead of "UNKNOWN" during boot.
+ 0.42 26-Apr-96 Fix MII write TA bit error.
+ Fix bug in dc21040 and dc21041 autosense code.
+ Remove buffer copies on receive for Intels.
+ Change sk_buff handling during media disconnects to
+ eliminate DUP packets.
+ Add dynamic TX thresholding.
+ Change all chips to use perfect multicast filtering.
+ Fix alloc_device() bug <jari@markkus2.fimr.fi>
+ 0.43 21-Jun-96 Fix unconnected media TX retry bug.
+ Add Accton to the list of broken cards.
+ Fix TX under-run bug for non DC21140 chips.
+ Fix boot command probe bug in alloc_device() as
+ reported by <koen.gadeyne@barco.com> and
+ <orava@nether.tky.hut.fi>.
+ Add cache locks to prevent a race condition as
+ reported by <csd@microplex.com> and
+ <baba@beckman.uiuc.edu>.
+ Upgraded alloc_device() code.
+ 0.431 28-Jun-96 Fix potential bug in queue_pkt() from discussion
+ with <csd@microplex.com>
+ 0.44 13-Aug-96 Fix RX overflow bug in 2114[023] chips.
+ Fix EISA probe bugs reported by <os2@kpi.kharkov.ua>
+ and <michael@compurex.com>.
+ 0.441 9-Sep-96 Change dc21041_autoconf() to probe quiet BNC media
+ with a loopback packet.
+ 0.442 9-Sep-96 Include AUI in dc21041 media printout. Bug reported
+ by <bhat@mundook.cs.mu.OZ.AU>
+ 0.45 8-Dec-96 Include endian functions for PPC use, from work
+ by <cort@cs.nmt.edu> and <g.thomas@opengroup.org>.
+ 0.451 28-Dec-96 Added fix to allow autoprobe for modules after
+ suggestion from <mjacob@feral.com>.
+ 0.5 30-Jan-97 Added SROM decoding functions.
+ Updated debug flags.
+ Fix sleep/wakeup calls for PCI cards, bug reported
+ by <cross@gweep.lkg.dec.com>.
+ Added multi-MAC, one SROM feature from discussion
+ with <mjacob@feral.com>.
+ Added full module autoprobe capability.
+ Added attempt to use an SMC9332 with broken SROM.
+ Added fix for ZYNX multi-mac cards that didn't
+ get their IRQs wired correctly.
+ 0.51 13-Feb-97 Added endian fixes for the SROM accesses from
+ <paubert@iram.es>
+ Fix init_connection() to remove extra device reset.
+ Fix MAC/PHY reset ordering in dc21140m_autoconf().
+ Fix initialisation problem with lp->timeout in
+ typeX_infoblock() from <paubert@iram.es>.
+ Fix MII PHY reset problem from work done by
+ <paubert@iram.es>.
+ 0.52 26-Apr-97 Some changes may not credit the right people -
+ a disk crash meant I lost some mail.
+ Change RX interrupt routine to drop rather than
+ defer packets to avoid hang reported by
+ <g.thomas@opengroup.org>.
+ Fix srom_exec() to return for COMPACT and type 1
+ infoblocks.
+ Added DC21142 and DC21143 functions.
+ Added byte counters from <phil@tazenda.demon.co.uk>
+ Added SA_INTERRUPT temporary fix from
+ <mjacob@feral.com>.
+ 0.53 12-Nov-97 Fix the *_probe() to include 'eth??' name during
+ module load: bug reported by
+ <Piete.Brooks@cl.cam.ac.uk>
+ Fix multi-MAC, one SROM, to work with 2114x chips:
+ bug reported by <cmetz@inner.net>.
+ Make above search independent of BIOS device scan
+ direction.
+ Completed DC2114[23] autosense functions.
+ 0.531 21-Dec-97 Fix DE500-XA 100Mb/s bug reported by
+ <robin@intercore.com
+ Fix type1_infoblock() bug introduced in 0.53, from
+ problem reports by
+ <parmee@postecss.ncrfran.france.ncr.com> and
+ <jo@ice.dillingen.baynet.de>.
+ Added argument list to set up each board from either
+ a module's command line or a compiled in #define.
+ Added generic MII PHY functionality to deal with
+ newer PHY chips.
+ Fix the mess in 2.1.67.
+ 0.532 5-Jan-98 Fix bug in mii_get_phy() reported by
+ <redhat@cococo.net>.
+ Fix bug in pci_probe() for 64 bit systems reported
+ by <belliott@accessone.com>.
+ 0.533 9-Jan-98 Fix more 64 bit bugs reported by <jal@cs.brown.edu>.
+ 0.534 24-Jan-98 Fix last (?) endian bug from <geert@linux-m68k.org>
+ 0.535 21-Feb-98 Fix Ethernet Address PROM reset bug for DC21040.
+ 0.536 21-Mar-98 Change pci_probe() to use the pci_dev structure.
+ **Incompatible with 2.0.x from here.**
+ 0.540 5-Jul-98 Atomicize assertion of dev->interrupt for SMP
+ from <lma@varesearch.com>
+ Add TP, AUI and BNC cases to 21140m_autoconf() for
+ case where a 21140 under SROM control uses, e.g. AUI
+ from problem report by <delchini@lpnp09.in2p3.fr>
+ Add MII parallel detection to 2114x_autoconf() for
+ case where no autonegotiation partner exists from
+ problem report by <mlapsley@ndirect.co.uk>.
+ Add ability to force connection type directly even
+ when using SROM control from problem report by
+ <earl@exis.net>.
+ Updated the PCI interface to conform with the latest
+ version. I hope nothing is broken...
+ Add TX done interrupt modification from suggestion
+ by <Austin.Donnelly@cl.cam.ac.uk>.
+ Fix is_anc_capable() bug reported by
+ <Austin.Donnelly@cl.cam.ac.uk>.
+ Fix type[13]_infoblock() bug: during MII search, PHY
+ lp->rst not run because lp->ibn not initialised -
+ from report & fix by <paubert@iram.es>.
+ Fix probe bug with EISA & PCI cards present from
+ report by <eirik@netcom.com>.
+ 0.541 24-Aug-98 Fix compiler problems associated with i386-string
+ ops from multiple bug reports and temporary fix
+ from <paubert@iram.es>.
+ Fix pci_probe() to correctly emulate the old
+ pcibios_find_class() function.
+ Add an_exception() for old ZYNX346 and fix compile
+ warning on PPC & SPARC, from <ecd@skynet.be>.
+ Fix lastPCI to correctly work with compiled in
+ kernels and modules from bug report by
+ <Zlatko.Calusic@CARNet.hr> et al.
+ 0.542 15-Sep-98 Fix dc2114x_autoconf() to stop multiple messages
+ when media is unconnected.
+ Change dev->interrupt to lp->interrupt to ensure
+ alignment for Alpha's and avoid their unaligned
+ access traps. This flag is merely for log messages:
+ should do something more definitive though...
+ 0.543 30-Dec-98 Add SMP spin locking.
+ 0.544 8-May-99 Fix for buggy SROM in Motorola embedded boards using
+ a 21143 by <mmporter@home.com>.
+ Change PCI/EISA bus probing order.
+ 0.545 28-Nov-99 Further Moto SROM bug fix from
+ <mporter@eng.mcd.mot.com>
+ Remove double checking for DEBUG_RX in de4x5_dbg_rx()
+ from report by <geert@linux-m68k.org>
+ 0.546 22-Feb-01 Fixes Alpha XP1000 oops. The srom_search function
+ was causing a page fault when initializing the
+ variable 'pb', on a non de4x5 PCI device, in this
+ case a PCI bridge (DEC chip 21152). The value of
+ 'pb' is now only initialized if a de4x5 chip is
+ present.
+ <france@handhelds.org>
+ 0.547 08-Nov-01 Use library crc32 functions by <Matt_Domsch@dell.com>
+ 0.548 30-Aug-03 Big 2.6 cleanup. Ported to PCI/EISA probing and
+ generic DMA APIs. Fixed DE425 support on Alpha.
+ <maz@wild-wind.fr.eu.org>
+ =========================================================================
+*/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/interrupt.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/eisa.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/crc32.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/time.h>
+#include <linux/types.h>
+#include <linux/unistd.h>
+#include <linux/ctype.h>
+#include <linux/dma-mapping.h>
+#include <linux/moduleparam.h>
+#include <linux/bitops.h>
+
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <asm/byteorder.h>
+#include <asm/unaligned.h>
+#include <asm/uaccess.h>
+#ifdef CONFIG_PPC_MULTIPLATFORM
+#include <asm/machdep.h>
+#endif /* CONFIG_PPC_MULTIPLATFORM */
+
+#include "de4x5.h"
+
+static char version[] __devinitdata = "de4x5.c:V0.546 2001/02/22 davies@maniac.ultranet.com\n";
+
+#define c_char const char
+#define TWIDDLE(a) (u_short)le16_to_cpu(get_unaligned((u_short *)(a)))
+
+/*
+** MII Information
+*/
+struct phy_table {
+ int reset; /* Hard reset required? */
+ int id; /* IEEE OUI */
+ int ta; /* One cycle TA time - 802.3u is confusing here */
+ struct { /* Non autonegotiation (parallel) speed det. */
+ int reg;
+ int mask;
+ int value;
+ } spd;
+};
+
+struct mii_phy {
+ int reset; /* Hard reset required? */
+ int id; /* IEEE OUI */
+ int ta; /* One cycle TA time */
+ struct { /* Non autonegotiation (parallel) speed det. */
+ int reg;
+ int mask;
+ int value;
+ } spd;
+ int addr; /* MII address for the PHY */
+ u_char *gep; /* Start of GEP sequence block in SROM */
+ u_char *rst; /* Start of reset sequence in SROM */
+ u_int mc; /* Media Capabilities */
+ u_int ana; /* NWay Advertisement */
+ u_int fdx; /* Full DupleX capabilites for each media */
+ u_int ttm; /* Transmit Threshold Mode for each media */
+ u_int mci; /* 21142 MII Connector Interrupt info */
+};
+
+#define DE4X5_MAX_PHY 8 /* Allow upto 8 attached PHY devices per board */
+
+struct sia_phy {
+ u_char mc; /* Media Code */
+ u_char ext; /* csr13-15 valid when set */
+ int csr13; /* SIA Connectivity Register */
+ int csr14; /* SIA TX/RX Register */
+ int csr15; /* SIA General Register */
+ int gepc; /* SIA GEP Control Information */
+ int gep; /* SIA GEP Data */
+};
+
+/*
+** Define the know universe of PHY devices that can be
+** recognised by this driver.
+*/
+static struct phy_table phy_info[] = {
+ {0, NATIONAL_TX, 1, {0x19, 0x40, 0x00}}, /* National TX */
+ {1, BROADCOM_T4, 1, {0x10, 0x02, 0x02}}, /* Broadcom T4 */
+ {0, SEEQ_T4 , 1, {0x12, 0x10, 0x10}}, /* SEEQ T4 */
+ {0, CYPRESS_T4 , 1, {0x05, 0x20, 0x20}}, /* Cypress T4 */
+ {0, 0x7810 , 1, {0x14, 0x0800, 0x0800}} /* Level One LTX970 */
+};
+
+/*
+** These GENERIC values assumes that the PHY devices follow 802.3u and
+** allow parallel detection to set the link partner ability register.
+** Detection of 100Base-TX [H/F Duplex] and 100Base-T4 is supported.
+*/
+#define GENERIC_REG 0x05 /* Autoneg. Link Partner Advertisement Reg. */
+#define GENERIC_MASK MII_ANLPA_100M /* All 100Mb/s Technologies */
+#define GENERIC_VALUE MII_ANLPA_100M /* 100B-TX, 100B-TX FDX, 100B-T4 */
+
+/*
+** Define special SROM detection cases
+*/
+static c_char enet_det[][ETH_ALEN] = {
+ {0x00, 0x00, 0xc0, 0x00, 0x00, 0x00},
+ {0x00, 0x00, 0xe8, 0x00, 0x00, 0x00}
+};
+
+#define SMC 1
+#define ACCTON 2
+
+/*
+** SROM Repair definitions. If a broken SROM is detected a card may
+** use this information to help figure out what to do. This is a
+** "stab in the dark" and so far for SMC9332's only.
+*/
+static c_char srom_repair_info[][100] = {
+ {0x00,0x1e,0x00,0x00,0x00,0x08, /* SMC9332 */
+ 0x1f,0x01,0x8f,0x01,0x00,0x01,0x00,0x02,
+ 0x01,0x00,0x00,0x78,0xe0,0x01,0x00,0x50,
+ 0x00,0x18,}
+};
+
+
+#ifdef DE4X5_DEBUG
+static int de4x5_debug = DE4X5_DEBUG;
+#else
+/*static int de4x5_debug = (DEBUG_MII | DEBUG_SROM | DEBUG_PCICFG | DEBUG_MEDIA | DEBUG_VERSION);*/
+static int de4x5_debug = (DEBUG_MEDIA | DEBUG_VERSION);
+#endif
+
+/*
+** Allow per adapter set up. For modules this is simply a command line
+** parameter, e.g.:
+** insmod de4x5 args='eth1:fdx autosense=BNC eth0:autosense=100Mb'.
+**
+** For a compiled in driver, place e.g.
+** #define DE4X5_PARM "eth0:fdx autosense=AUI eth2:autosense=TP"
+** here
+*/
+#ifdef DE4X5_PARM
+static char *args = DE4X5_PARM;
+#else
+static char *args;
+#endif
+
+struct parameters {
+ int fdx;
+ int autosense;
+};
+
+#define DE4X5_AUTOSENSE_MS 250 /* msec autosense tick (DE500) */
+
+#define DE4X5_NDA 0xffe0 /* No Device (I/O) Address */
+
+/*
+** Ethernet PROM defines
+*/
+#define PROBE_LENGTH 32
+#define ETH_PROM_SIG 0xAA5500FFUL
+
+/*
+** Ethernet Info
+*/
+#define PKT_BUF_SZ 1536 /* Buffer size for each Tx/Rx buffer */
+#define IEEE802_3_SZ 1518 /* Packet + CRC */
+#define MAX_PKT_SZ 1514 /* Maximum ethernet packet length */
+#define MAX_DAT_SZ 1500 /* Maximum ethernet data length */
+#define MIN_DAT_SZ 1 /* Minimum ethernet data length */
+#define PKT_HDR_LEN 14 /* Addresses and data length info */
+#define FAKE_FRAME_LEN (MAX_PKT_SZ + 1)
+#define QUEUE_PKT_TIMEOUT (3*HZ) /* 3 second timeout */
+
+
+/*
+** EISA bus defines
+*/
+#define DE4X5_EISA_IO_PORTS 0x0c00 /* I/O port base address, slot 0 */
+#define DE4X5_EISA_TOTAL_SIZE 0x100 /* I/O address extent */
+
+#define EISA_ALLOWED_IRQ_LIST {5, 9, 10, 11}
+
+#define DE4X5_SIGNATURE {"DE425","DE434","DE435","DE450","DE500"}
+#define DE4X5_NAME_LENGTH 8
+
+static c_char *de4x5_signatures[] = DE4X5_SIGNATURE;
+
+/*
+** Ethernet PROM defines for DC21040
+*/
+#define PROBE_LENGTH 32
+#define ETH_PROM_SIG 0xAA5500FFUL
+
+/*
+** PCI Bus defines
+*/
+#define PCI_MAX_BUS_NUM 8
+#define DE4X5_PCI_TOTAL_SIZE 0x80 /* I/O address extent */
+#define DE4X5_CLASS_CODE 0x00020000 /* Network controller, Ethernet */
+
+/*
+** Memory Alignment. Each descriptor is 4 longwords long. To force a
+** particular alignment on the TX descriptor, adjust DESC_SKIP_LEN and
+** DESC_ALIGN. ALIGN aligns the start address of the private memory area
+** and hence the RX descriptor ring's first entry.
+*/
+#define DE4X5_ALIGN4 ((u_long)4 - 1) /* 1 longword align */
+#define DE4X5_ALIGN8 ((u_long)8 - 1) /* 2 longword align */
+#define DE4X5_ALIGN16 ((u_long)16 - 1) /* 4 longword align */
+#define DE4X5_ALIGN32 ((u_long)32 - 1) /* 8 longword align */
+#define DE4X5_ALIGN64 ((u_long)64 - 1) /* 16 longword align */
+#define DE4X5_ALIGN128 ((u_long)128 - 1) /* 32 longword align */
+
+#define DE4X5_ALIGN DE4X5_ALIGN32 /* Keep the DC21040 happy... */
+#define DE4X5_CACHE_ALIGN CAL_16LONG
+#define DESC_SKIP_LEN DSL_0 /* Must agree with DESC_ALIGN */
+/*#define DESC_ALIGN u32 dummy[4]; / * Must agree with DESC_SKIP_LEN */
+#define DESC_ALIGN
+
+#ifndef DEC_ONLY /* See README.de4x5 for using this */
+static int dec_only;
+#else
+static int dec_only = 1;
+#endif
+
+/*
+** DE4X5 IRQ ENABLE/DISABLE
+*/
+#define ENABLE_IRQs { \
+ imr |= lp->irq_en;\
+ outl(imr, DE4X5_IMR); /* Enable the IRQs */\
+}
+
+#define DISABLE_IRQs {\
+ imr = inl(DE4X5_IMR);\
+ imr &= ~lp->irq_en;\
+ outl(imr, DE4X5_IMR); /* Disable the IRQs */\
+}
+
+#define UNMASK_IRQs {\
+ imr |= lp->irq_mask;\
+ outl(imr, DE4X5_IMR); /* Unmask the IRQs */\
+}
+
+#define MASK_IRQs {\
+ imr = inl(DE4X5_IMR);\
+ imr &= ~lp->irq_mask;\
+ outl(imr, DE4X5_IMR); /* Mask the IRQs */\
+}
+
+/*
+** DE4X5 START/STOP
+*/
+#define START_DE4X5 {\
+ omr = inl(DE4X5_OMR);\
+ omr |= OMR_ST | OMR_SR;\
+ outl(omr, DE4X5_OMR); /* Enable the TX and/or RX */\
+}
+
+#define STOP_DE4X5 {\
+ omr = inl(DE4X5_OMR);\
+ omr &= ~(OMR_ST|OMR_SR);\
+ outl(omr, DE4X5_OMR); /* Disable the TX and/or RX */ \
+}
+
+/*
+** DE4X5 SIA RESET
+*/
+#define RESET_SIA outl(0, DE4X5_SICR); /* Reset SIA connectivity regs */
+
+/*
+** DE500 AUTOSENSE TIMER INTERVAL (MILLISECS)
+*/
+#define DE4X5_AUTOSENSE_MS 250
+
+/*
+** SROM Structure
+*/
+struct de4x5_srom {
+ char sub_vendor_id[2];
+ char sub_system_id[2];
+ char reserved[12];
+ char id_block_crc;
+ char reserved2;
+ char version;
+ char num_controllers;
+ char ieee_addr[6];
+ char info[100];
+ short chksum;
+};
+#define SUB_VENDOR_ID 0x500a
+
+/*
+** DE4X5 Descriptors. Make sure that all the RX buffers are contiguous
+** and have sizes of both a power of 2 and a multiple of 4.
+** A size of 256 bytes for each buffer could be chosen because over 90% of
+** all packets in our network are <256 bytes long and 64 longword alignment
+** is possible. 1536 showed better 'ttcp' performance. Take your pick. 32 TX
+** descriptors are needed for machines with an ALPHA CPU.
+*/
+#define NUM_RX_DESC 8 /* Number of RX descriptors */
+#define NUM_TX_DESC 32 /* Number of TX descriptors */
+#define RX_BUFF_SZ 1536 /* Power of 2 for kmalloc and */
+ /* Multiple of 4 for DC21040 */
+ /* Allows 512 byte alignment */
+struct de4x5_desc {
+ volatile s32 status;
+ u32 des1;
+ u32 buf;
+ u32 next;
+ DESC_ALIGN
+};
+
+/*
+** The DE4X5 private structure
+*/
+#define DE4X5_PKT_STAT_SZ 16
+#define DE4X5_PKT_BIN_SZ 128 /* Should be >=100 unless you
+ increase DE4X5_PKT_STAT_SZ */
+
+struct pkt_stats {
+ u_int bins[DE4X5_PKT_STAT_SZ]; /* Private stats counters */
+ u_int unicast;
+ u_int multicast;
+ u_int broadcast;
+ u_int excessive_collisions;
+ u_int tx_underruns;
+ u_int excessive_underruns;
+ u_int rx_runt_frames;
+ u_int rx_collision;
+ u_int rx_dribble;
+ u_int rx_overflow;
+};
+
+struct de4x5_private {
+ char adapter_name[80]; /* Adapter name */
+ u_long interrupt; /* Aligned ISR flag */
+ struct de4x5_desc *rx_ring; /* RX descriptor ring */
+ struct de4x5_desc *tx_ring; /* TX descriptor ring */
+ struct sk_buff *tx_skb[NUM_TX_DESC]; /* TX skb for freeing when sent */
+ struct sk_buff *rx_skb[NUM_RX_DESC]; /* RX skb's */
+ int rx_new, rx_old; /* RX descriptor ring pointers */
+ int tx_new, tx_old; /* TX descriptor ring pointers */
+ char setup_frame[SETUP_FRAME_LEN]; /* Holds MCA and PA info. */
+ char frame[64]; /* Min sized packet for loopback*/
+ spinlock_t lock; /* Adapter specific spinlock */
+ struct net_device_stats stats; /* Public stats */
+ struct pkt_stats pktStats; /* Private stats counters */
+ char rxRingSize;
+ char txRingSize;
+ int bus; /* EISA or PCI */
+ int bus_num; /* PCI Bus number */
+ int device; /* Device number on PCI bus */
+ int state; /* Adapter OPENED or CLOSED */
+ int chipset; /* DC21040, DC21041 or DC21140 */
+ s32 irq_mask; /* Interrupt Mask (Enable) bits */
+ s32 irq_en; /* Summary interrupt bits */
+ int media; /* Media (eg TP), mode (eg 100B)*/
+ int c_media; /* Remember the last media conn */
+ int fdx; /* media full duplex flag */
+ int linkOK; /* Link is OK */
+ int autosense; /* Allow/disallow autosensing */
+ int tx_enable; /* Enable descriptor polling */
+ int setup_f; /* Setup frame filtering type */
+ int local_state; /* State within a 'media' state */
+ struct mii_phy phy[DE4X5_MAX_PHY]; /* List of attached PHY devices */
+ struct sia_phy sia; /* SIA PHY Information */
+ int active; /* Index to active PHY device */
+ int mii_cnt; /* Number of attached PHY's */
+ int timeout; /* Scheduling counter */
+ struct timer_list timer; /* Timer info for kernel */
+ int tmp; /* Temporary global per card */
+ struct {
+ u_long lock; /* Lock the cache accesses */
+ s32 csr0; /* Saved Bus Mode Register */
+ s32 csr6; /* Saved Operating Mode Reg. */
+ s32 csr7; /* Saved IRQ Mask Register */
+ s32 gep; /* Saved General Purpose Reg. */
+ s32 gepc; /* Control info for GEP */
+ s32 csr13; /* Saved SIA Connectivity Reg. */
+ s32 csr14; /* Saved SIA TX/RX Register */
+ s32 csr15; /* Saved SIA General Register */
+ int save_cnt; /* Flag if state already saved */
+ struct sk_buff *skb; /* Save the (re-ordered) skb's */
+ } cache;
+ struct de4x5_srom srom; /* A copy of the SROM */
+ int cfrv; /* Card CFRV copy */
+ int rx_ovf; /* Check for 'RX overflow' tag */
+ int useSROM; /* For non-DEC card use SROM */
+ int useMII; /* Infoblock using the MII */
+ int asBitValid; /* Autosense bits in GEP? */
+ int asPolarity; /* 0 => asserted high */
+ int asBit; /* Autosense bit number in GEP */
+ int defMedium; /* SROM default medium */
+ int tcount; /* Last infoblock number */
+ int infoblock_init; /* Initialised this infoblock? */
+ int infoleaf_offset; /* SROM infoleaf for controller */
+ s32 infoblock_csr6; /* csr6 value in SROM infoblock */
+ int infoblock_media; /* infoblock media */
+ int (*infoleaf_fn)(struct net_device *); /* Pointer to infoleaf function */
+ u_char *rst; /* Pointer to Type 5 reset info */
+ u_char ibn; /* Infoblock number */
+ struct parameters params; /* Command line/ #defined params */
+ struct device *gendev; /* Generic device */
+ dma_addr_t dma_rings; /* DMA handle for rings */
+ int dma_size; /* Size of the DMA area */
+ char *rx_bufs; /* rx bufs on alpha, sparc, ... */
+};
+
+/*
+** To get around certain poxy cards that don't provide an SROM
+** for the second and more DECchip, I have to key off the first
+** chip's address. I'll assume there's not a bad SROM iff:
+**
+** o the chipset is the same
+** o the bus number is the same and > 0
+** o the sum of all the returned hw address bytes is 0 or 0x5fa
+**
+** Also have to save the irq for those cards whose hardware designers
+** can't follow the PCI to PCI Bridge Architecture spec.
+*/
+static struct {
+ int chipset;
+ int bus;
+ int irq;
+ u_char addr[ETH_ALEN];
+} last = {0,};
+
+/*
+** The transmit ring full condition is described by the tx_old and tx_new
+** pointers by:
+** tx_old = tx_new Empty ring
+** tx_old = tx_new+1 Full ring
+** tx_old+txRingSize = tx_new+1 Full ring (wrapped condition)
+*/
+#define TX_BUFFS_AVAIL ((lp->tx_old<=lp->tx_new)?\
+ lp->tx_old+lp->txRingSize-lp->tx_new-1:\
+ lp->tx_old -lp->tx_new-1)
+
+#define TX_PKT_PENDING (lp->tx_old != lp->tx_new)
+
+/*
+** Public Functions
+*/
+static int de4x5_open(struct net_device *dev);
+static int de4x5_queue_pkt(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t de4x5_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static int de4x5_close(struct net_device *dev);
+static struct net_device_stats *de4x5_get_stats(struct net_device *dev);
+static void de4x5_local_stats(struct net_device *dev, char *buf, int pkt_len);
+static void set_multicast_list(struct net_device *dev);
+static int de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
+
+/*
+** Private functions
+*/
+static int de4x5_hw_init(struct net_device *dev, u_long iobase, struct device *gendev);
+static int de4x5_init(struct net_device *dev);
+static int de4x5_sw_reset(struct net_device *dev);
+static int de4x5_rx(struct net_device *dev);
+static int de4x5_tx(struct net_device *dev);
+static int de4x5_ast(struct net_device *dev);
+static int de4x5_txur(struct net_device *dev);
+static int de4x5_rx_ovfc(struct net_device *dev);
+
+static int autoconf_media(struct net_device *dev);
+static void create_packet(struct net_device *dev, char *frame, int len);
+static void load_packet(struct net_device *dev, char *buf, u32 flags, struct sk_buff *skb);
+static int dc21040_autoconf(struct net_device *dev);
+static int dc21041_autoconf(struct net_device *dev);
+static int dc21140m_autoconf(struct net_device *dev);
+static int dc2114x_autoconf(struct net_device *dev);
+static int srom_autoconf(struct net_device *dev);
+static int de4x5_suspect_state(struct net_device *dev, int timeout, int prev_state, int (*fn)(struct net_device *, int), int (*asfn)(struct net_device *));
+static int dc21040_state(struct net_device *dev, int csr13, int csr14, int csr15, int timeout, int next_state, int suspect_state, int (*fn)(struct net_device *, int));
+static int test_media(struct net_device *dev, s32 irqs, s32 irq_mask, s32 csr13, s32 csr14, s32 csr15, s32 msec);
+static int test_for_100Mb(struct net_device *dev, int msec);
+static int wait_for_link(struct net_device *dev);
+static int test_mii_reg(struct net_device *dev, int reg, int mask, int pol, long msec);
+static int is_spd_100(struct net_device *dev);
+static int is_100_up(struct net_device *dev);
+static int is_10_up(struct net_device *dev);
+static int is_anc_capable(struct net_device *dev);
+static int ping_media(struct net_device *dev, int msec);
+static struct sk_buff *de4x5_alloc_rx_buff(struct net_device *dev, int index, int len);
+static void de4x5_free_rx_buffs(struct net_device *dev);
+static void de4x5_free_tx_buffs(struct net_device *dev);
+static void de4x5_save_skbs(struct net_device *dev);
+static void de4x5_rst_desc_ring(struct net_device *dev);
+static void de4x5_cache_state(struct net_device *dev, int flag);
+static void de4x5_put_cache(struct net_device *dev, struct sk_buff *skb);
+static void de4x5_putb_cache(struct net_device *dev, struct sk_buff *skb);
+static struct sk_buff *de4x5_get_cache(struct net_device *dev);
+static void de4x5_setup_intr(struct net_device *dev);
+static void de4x5_init_connection(struct net_device *dev);
+static int de4x5_reset_phy(struct net_device *dev);
+static void reset_init_sia(struct net_device *dev, s32 sicr, s32 strr, s32 sigr);
+static int test_ans(struct net_device *dev, s32 irqs, s32 irq_mask, s32 msec);
+static int test_tp(struct net_device *dev, s32 msec);
+static int EISA_signature(char *name, struct device *device);
+static int PCI_signature(char *name, struct de4x5_private *lp);
+static void DevicePresent(struct net_device *dev, u_long iobase);
+static void enet_addr_rst(u_long aprom_addr);
+static int de4x5_bad_srom(struct de4x5_private *lp);
+static short srom_rd(u_long address, u_char offset);
+static void srom_latch(u_int command, u_long address);
+static void srom_command(u_int command, u_long address);
+static void srom_address(u_int command, u_long address, u_char offset);
+static short srom_data(u_int command, u_long address);
+/*static void srom_busy(u_int command, u_long address);*/
+static void sendto_srom(u_int command, u_long addr);
+static int getfrom_srom(u_long addr);
+static int srom_map_media(struct net_device *dev);
+static int srom_infoleaf_info(struct net_device *dev);
+static void srom_init(struct net_device *dev);
+static void srom_exec(struct net_device *dev, u_char *p);
+static int mii_rd(u_char phyreg, u_char phyaddr, u_long ioaddr);
+static void mii_wr(int data, u_char phyreg, u_char phyaddr, u_long ioaddr);
+static int mii_rdata(u_long ioaddr);
+static void mii_wdata(int data, int len, u_long ioaddr);
+static void mii_ta(u_long rw, u_long ioaddr);
+static int mii_swap(int data, int len);
+static void mii_address(u_char addr, u_long ioaddr);
+static void sendto_mii(u32 command, int data, u_long ioaddr);
+static int getfrom_mii(u32 command, u_long ioaddr);
+static int mii_get_oui(u_char phyaddr, u_long ioaddr);
+static int mii_get_phy(struct net_device *dev);
+static void SetMulticastFilter(struct net_device *dev);
+static int get_hw_addr(struct net_device *dev);
+static void srom_repair(struct net_device *dev, int card);
+static int test_bad_enet(struct net_device *dev, int status);
+static int an_exception(struct de4x5_private *lp);
+static char *build_setup_frame(struct net_device *dev, int mode);
+static void disable_ast(struct net_device *dev);
+static void enable_ast(struct net_device *dev, u32 time_out);
+static long de4x5_switch_mac_port(struct net_device *dev);
+static int gep_rd(struct net_device *dev);
+static void gep_wr(s32 data, struct net_device *dev);
+static void timeout(struct net_device *dev, void (*fn)(u_long data), u_long data, u_long msec);
+static void yawn(struct net_device *dev, int state);
+static void de4x5_parse_params(struct net_device *dev);
+static void de4x5_dbg_open(struct net_device *dev);
+static void de4x5_dbg_mii(struct net_device *dev, int k);
+static void de4x5_dbg_media(struct net_device *dev);
+static void de4x5_dbg_srom(struct de4x5_srom *p);
+static void de4x5_dbg_rx(struct sk_buff *skb, int len);
+static int de4x5_strncmp(char *a, char *b, int n);
+static int dc21041_infoleaf(struct net_device *dev);
+static int dc21140_infoleaf(struct net_device *dev);
+static int dc21142_infoleaf(struct net_device *dev);
+static int dc21143_infoleaf(struct net_device *dev);
+static int type0_infoblock(struct net_device *dev, u_char count, u_char *p);
+static int type1_infoblock(struct net_device *dev, u_char count, u_char *p);
+static int type2_infoblock(struct net_device *dev, u_char count, u_char *p);
+static int type3_infoblock(struct net_device *dev, u_char count, u_char *p);
+static int type4_infoblock(struct net_device *dev, u_char count, u_char *p);
+static int type5_infoblock(struct net_device *dev, u_char count, u_char *p);
+static int compact_infoblock(struct net_device *dev, u_char count, u_char *p);
+
+/*
+** Note now that module autoprobing is allowed under EISA and PCI. The
+** IRQ lines will not be auto-detected; instead I'll rely on the BIOSes
+** to "do the right thing".
+*/
+
+static int io=0x0;/* EDIT THIS LINE FOR YOUR CONFIGURATION IF NEEDED */
+
+module_param(io, int, 0);
+module_param(de4x5_debug, int, 0);
+module_param(dec_only, int, 0);
+module_param(args, charp, 0);
+
+MODULE_PARM_DESC(io, "de4x5 I/O base address");
+MODULE_PARM_DESC(de4x5_debug, "de4x5 debug mask");
+MODULE_PARM_DESC(dec_only, "de4x5 probe only for Digital boards (0-1)");
+MODULE_PARM_DESC(args, "de4x5 full duplex and media type settings; see de4x5.c for details");
+MODULE_LICENSE("GPL");
+
+/*
+** List the SROM infoleaf functions and chipsets
+*/
+struct InfoLeaf {
+ int chipset;
+ int (*fn)(struct net_device *);
+};
+static struct InfoLeaf infoleaf_array[] = {
+ {DC21041, dc21041_infoleaf},
+ {DC21140, dc21140_infoleaf},
+ {DC21142, dc21142_infoleaf},
+ {DC21143, dc21143_infoleaf}
+};
+#define INFOLEAF_SIZE (sizeof(infoleaf_array)/(sizeof(int)+sizeof(int *)))
+
+/*
+** List the SROM info block functions
+*/
+static int (*dc_infoblock[])(struct net_device *dev, u_char, u_char *) = {
+ type0_infoblock,
+ type1_infoblock,
+ type2_infoblock,
+ type3_infoblock,
+ type4_infoblock,
+ type5_infoblock,
+ compact_infoblock
+};
+
+#define COMPACT (sizeof(dc_infoblock)/sizeof(int *) - 1)
+
+/*
+** Miscellaneous defines...
+*/
+#define RESET_DE4X5 {\
+ int i;\
+ i=inl(DE4X5_BMR);\
+ mdelay(1);\
+ outl(i | BMR_SWR, DE4X5_BMR);\
+ mdelay(1);\
+ outl(i, DE4X5_BMR);\
+ mdelay(1);\
+ for (i=0;i<5;i++) {inl(DE4X5_BMR); mdelay(1);}\
+ mdelay(1);\
+}
+
+#define PHY_HARD_RESET {\
+ outl(GEP_HRST, DE4X5_GEP); /* Hard RESET the PHY dev. */\
+ mdelay(1); /* Assert for 1ms */\
+ outl(0x00, DE4X5_GEP);\
+ mdelay(2); /* Wait for 2ms */\
+}
+
+
+static int __devinit
+de4x5_hw_init(struct net_device *dev, u_long iobase, struct device *gendev)
+{
+ char name[DE4X5_NAME_LENGTH + 1];
+ struct de4x5_private *lp = netdev_priv(dev);
+ struct pci_dev *pdev = NULL;
+ int i, status=0;
+
+ gendev->driver_data = dev;
+
+ /* Ensure we're not sleeping */
+ if (lp->bus == EISA) {
+ outb(WAKEUP, PCI_CFPM);
+ } else {
+ pdev = to_pci_dev (gendev);
+ pci_write_config_byte(pdev, PCI_CFDA_PSM, WAKEUP);
+ }
+ mdelay(10);
+
+ RESET_DE4X5;
+
+ if ((inl(DE4X5_STS) & (STS_TS | STS_RS)) != 0) {
+ return -ENXIO; /* Hardware could not reset */
+ }
+
+ /*
+ ** Now find out what kind of DC21040/DC21041/DC21140 board we have.
+ */
+ lp->useSROM = FALSE;
+ if (lp->bus == PCI) {
+ PCI_signature(name, lp);
+ } else {
+ EISA_signature(name, gendev);
+ }
+
+ if (*name == '\0') { /* Not found a board signature */
+ return -ENXIO;
+ }
+
+ dev->base_addr = iobase;
+ printk ("%s: %s at 0x%04lx", gendev->bus_id, name, iobase);
+
+ printk(", h/w address ");
+ status = get_hw_addr(dev);
+ for (i = 0; i < ETH_ALEN - 1; i++) { /* get the ethernet addr. */
+ printk("%2.2x:", dev->dev_addr[i]);
+ }
+ printk("%2.2x,\n", dev->dev_addr[i]);
+
+ if (status != 0) {
+ printk(" which has an Ethernet PROM CRC error.\n");
+ return -ENXIO;
+ } else {
+ lp->cache.gepc = GEP_INIT;
+ lp->asBit = GEP_SLNK;
+ lp->asPolarity = GEP_SLNK;
+ lp->asBitValid = TRUE;
+ lp->timeout = -1;
+ lp->gendev = gendev;
+ spin_lock_init(&lp->lock);
+ init_timer(&lp->timer);
+ de4x5_parse_params(dev);
+
+ /*
+ ** Choose correct autosensing in case someone messed up
+ */
+ lp->autosense = lp->params.autosense;
+ if (lp->chipset != DC21140) {
+ if ((lp->chipset==DC21040) && (lp->params.autosense&TP_NW)) {
+ lp->params.autosense = TP;
+ }
+ if ((lp->chipset==DC21041) && (lp->params.autosense&BNC_AUI)) {
+ lp->params.autosense = BNC;
+ }
+ }
+ lp->fdx = lp->params.fdx;
+ sprintf(lp->adapter_name,"%s (%s)", name, gendev->bus_id);
+
+ lp->dma_size = (NUM_RX_DESC + NUM_TX_DESC) * sizeof(struct de4x5_desc);
+#if defined(__alpha__) || defined(__powerpc__) || defined(__sparc_v9__) || defined(DE4X5_DO_MEMCPY)
+ lp->dma_size += RX_BUFF_SZ * NUM_RX_DESC + DE4X5_ALIGN;
+#endif
+ lp->rx_ring = dma_alloc_coherent(gendev, lp->dma_size,
+ &lp->dma_rings, GFP_ATOMIC);
+ if (lp->rx_ring == NULL) {
+ return -ENOMEM;
+ }
+
+ lp->tx_ring = lp->rx_ring + NUM_RX_DESC;
+
+ /*
+ ** Set up the RX descriptor ring (Intels)
+ ** Allocate contiguous receive buffers, long word aligned (Alphas)
+ */
+#if !defined(__alpha__) && !defined(__powerpc__) && !defined(__sparc_v9__) && !defined(DE4X5_DO_MEMCPY)
+ for (i=0; i<NUM_RX_DESC; i++) {
+ lp->rx_ring[i].status = 0;
+ lp->rx_ring[i].des1 = cpu_to_le32(RX_BUFF_SZ);
+ lp->rx_ring[i].buf = 0;
+ lp->rx_ring[i].next = 0;
+ lp->rx_skb[i] = (struct sk_buff *) 1; /* Dummy entry */
+ }
+
+#else
+ {
+ dma_addr_t dma_rx_bufs;
+
+ dma_rx_bufs = lp->dma_rings + (NUM_RX_DESC + NUM_TX_DESC)
+ * sizeof(struct de4x5_desc);
+ dma_rx_bufs = (dma_rx_bufs + DE4X5_ALIGN) & ~DE4X5_ALIGN;
+ lp->rx_bufs = (char *)(((long)(lp->rx_ring + NUM_RX_DESC
+ + NUM_TX_DESC) + DE4X5_ALIGN) & ~DE4X5_ALIGN);
+ for (i=0; i<NUM_RX_DESC; i++) {
+ lp->rx_ring[i].status = 0;
+ lp->rx_ring[i].des1 = cpu_to_le32(RX_BUFF_SZ);
+ lp->rx_ring[i].buf =
+ cpu_to_le32(dma_rx_bufs+i*RX_BUFF_SZ);
+ lp->rx_ring[i].next = 0;
+ lp->rx_skb[i] = (struct sk_buff *) 1; /* Dummy entry */
+ }
+
+ }
+#endif
+
+ barrier();
+
+ lp->rxRingSize = NUM_RX_DESC;
+ lp->txRingSize = NUM_TX_DESC;
+
+ /* Write the end of list marker to the descriptor lists */
+ lp->rx_ring[lp->rxRingSize - 1].des1 |= cpu_to_le32(RD_RER);
+ lp->tx_ring[lp->txRingSize - 1].des1 |= cpu_to_le32(TD_TER);
+
+ /* Tell the adapter where the TX/RX rings are located. */
+ outl(lp->dma_rings, DE4X5_RRBA);
+ outl(lp->dma_rings + NUM_RX_DESC * sizeof(struct de4x5_desc),
+ DE4X5_TRBA);
+
+ /* Initialise the IRQ mask and Enable/Disable */
+ lp->irq_mask = IMR_RIM | IMR_TIM | IMR_TUM | IMR_UNM;
+ lp->irq_en = IMR_NIM | IMR_AIM;
+
+ /* Create a loopback packet frame for later media probing */
+ create_packet(dev, lp->frame, sizeof(lp->frame));
+
+ /* Check if the RX overflow bug needs testing for */
+ i = lp->cfrv & 0x000000fe;
+ if ((lp->chipset == DC21140) && (i == 0x20)) {
+ lp->rx_ovf = 1;
+ }
+
+ /* Initialise the SROM pointers if possible */
+ if (lp->useSROM) {
+ lp->state = INITIALISED;
+ if (srom_infoleaf_info(dev)) {
+ dma_free_coherent (gendev, lp->dma_size,
+ lp->rx_ring, lp->dma_rings);
+ return -ENXIO;
+ }
+ srom_init(dev);
+ }
+
+ lp->state = CLOSED;
+
+ /*
+ ** Check for an MII interface
+ */
+ if ((lp->chipset != DC21040) && (lp->chipset != DC21041)) {
+ mii_get_phy(dev);
+ }
+
+#ifndef __sparc_v9__
+ printk(" and requires IRQ%d (provided by %s).\n", dev->irq,
+#else
+ printk(" and requires IRQ%x (provided by %s).\n", dev->irq,
+#endif
+ ((lp->bus == PCI) ? "PCI BIOS" : "EISA CNFG"));
+ }
+
+ if (de4x5_debug & DEBUG_VERSION) {
+ printk(version);
+ }
+
+ /* The DE4X5-specific entries in the device structure. */
+ SET_MODULE_OWNER(dev);
+ SET_NETDEV_DEV(dev, gendev);
+ dev->open = &de4x5_open;
+ dev->hard_start_xmit = &de4x5_queue_pkt;
+ dev->stop = &de4x5_close;
+ dev->get_stats = &de4x5_get_stats;
+ dev->set_multicast_list = &set_multicast_list;
+ dev->do_ioctl = &de4x5_ioctl;
+
+ dev->mem_start = 0;
+
+ /* Fill in the generic fields of the device structure. */
+ if ((status = register_netdev (dev))) {
+ dma_free_coherent (gendev, lp->dma_size,
+ lp->rx_ring, lp->dma_rings);
+ return status;
+ }
+
+ /* Let the adapter sleep to save power */
+ yawn(dev, SLEEP);
+
+ return status;
+}
+
+
+static int
+de4x5_open(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int i, status = 0;
+ s32 omr;
+
+ /* Allocate the RX buffers */
+ for (i=0; i<lp->rxRingSize; i++) {
+ if (de4x5_alloc_rx_buff(dev, i, 0) == NULL) {
+ de4x5_free_rx_buffs(dev);
+ return -EAGAIN;
+ }
+ }
+
+ /*
+ ** Wake up the adapter
+ */
+ yawn(dev, WAKEUP);
+
+ /*
+ ** Re-initialize the DE4X5...
+ */
+ status = de4x5_init(dev);
+ spin_lock_init(&lp->lock);
+ lp->state = OPEN;
+ de4x5_dbg_open(dev);
+
+ if (request_irq(dev->irq, (void *)de4x5_interrupt, SA_SHIRQ,
+ lp->adapter_name, dev)) {
+ printk("de4x5_open(): Requested IRQ%d is busy - attemping FAST/SHARE...", dev->irq);
+ if (request_irq(dev->irq, de4x5_interrupt, SA_INTERRUPT | SA_SHIRQ,
+ lp->adapter_name, dev)) {
+ printk("\n Cannot get IRQ- reconfigure your hardware.\n");
+ disable_ast(dev);
+ de4x5_free_rx_buffs(dev);
+ de4x5_free_tx_buffs(dev);
+ yawn(dev, SLEEP);
+ lp->state = CLOSED;
+ return -EAGAIN;
+ } else {
+ printk("\n Succeeded, but you should reconfigure your hardware to avoid this.\n");
+ printk("WARNING: there may be IRQ related problems in heavily loaded systems.\n");
+ }
+ }
+
+ lp->interrupt = UNMASK_INTERRUPTS;
+ dev->trans_start = jiffies;
+
+ START_DE4X5;
+
+ de4x5_setup_intr(dev);
+
+ if (de4x5_debug & DEBUG_OPEN) {
+ printk("\tsts: 0x%08x\n", inl(DE4X5_STS));
+ printk("\tbmr: 0x%08x\n", inl(DE4X5_BMR));
+ printk("\timr: 0x%08x\n", inl(DE4X5_IMR));
+ printk("\tomr: 0x%08x\n", inl(DE4X5_OMR));
+ printk("\tsisr: 0x%08x\n", inl(DE4X5_SISR));
+ printk("\tsicr: 0x%08x\n", inl(DE4X5_SICR));
+ printk("\tstrr: 0x%08x\n", inl(DE4X5_STRR));
+ printk("\tsigr: 0x%08x\n", inl(DE4X5_SIGR));
+ }
+
+ return status;
+}
+
+/*
+** Initialize the DE4X5 operating conditions. NB: a chip problem with the
+** DC21140 requires using perfect filtering mode for that chip. Since I can't
+** see why I'd want > 14 multicast addresses, I have changed all chips to use
+** the perfect filtering mode. Keep the DMA burst length at 8: there seems
+** to be data corruption problems if it is larger (UDP errors seen from a
+** ttcp source).
+*/
+static int
+de4x5_init(struct net_device *dev)
+{
+ /* Lock out other processes whilst setting up the hardware */
+ netif_stop_queue(dev);
+
+ de4x5_sw_reset(dev);
+
+ /* Autoconfigure the connected port */
+ autoconf_media(dev);
+
+ return 0;
+}
+
+static int
+de4x5_sw_reset(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int i, j, status = 0;
+ s32 bmr, omr;
+
+ /* Select the MII or SRL port now and RESET the MAC */
+ if (!lp->useSROM) {
+ if (lp->phy[lp->active].id != 0) {
+ lp->infoblock_csr6 = OMR_SDP | OMR_PS | OMR_HBD;
+ } else {
+ lp->infoblock_csr6 = OMR_SDP | OMR_TTM;
+ }
+ de4x5_switch_mac_port(dev);
+ }
+
+ /*
+ ** Set the programmable burst length to 8 longwords for all the DC21140
+ ** Fasternet chips and 4 longwords for all others: DMA errors result
+ ** without these values. Cache align 16 long.
+ */
+ bmr = (lp->chipset==DC21140 ? PBL_8 : PBL_4) | DESC_SKIP_LEN | DE4X5_CACHE_ALIGN;
+ bmr |= ((lp->chipset & ~0x00ff)==DC2114x ? BMR_RML : 0);
+ outl(bmr, DE4X5_BMR);
+
+ omr = inl(DE4X5_OMR) & ~OMR_PR; /* Turn off promiscuous mode */
+ if (lp->chipset == DC21140) {
+ omr |= (OMR_SDP | OMR_SB);
+ }
+ lp->setup_f = PERFECT;
+ outl(lp->dma_rings, DE4X5_RRBA);
+ outl(lp->dma_rings + NUM_RX_DESC * sizeof(struct de4x5_desc),
+ DE4X5_TRBA);
+
+ lp->rx_new = lp->rx_old = 0;
+ lp->tx_new = lp->tx_old = 0;
+
+ for (i = 0; i < lp->rxRingSize; i++) {
+ lp->rx_ring[i].status = cpu_to_le32(R_OWN);
+ }
+
+ for (i = 0; i < lp->txRingSize; i++) {
+ lp->tx_ring[i].status = cpu_to_le32(0);
+ }
+
+ barrier();
+
+ /* Build the setup frame depending on filtering mode */
+ SetMulticastFilter(dev);
+
+ load_packet(dev, lp->setup_frame, PERFECT_F|TD_SET|SETUP_FRAME_LEN, (struct sk_buff *)1);
+ outl(omr|OMR_ST, DE4X5_OMR);
+
+ /* Poll for setup frame completion (adapter interrupts are disabled now) */
+
+ for (j=0, i=0;(i<500) && (j==0);i++) { /* Upto 500ms delay */
+ mdelay(1);
+ if ((s32)le32_to_cpu(lp->tx_ring[lp->tx_new].status) >= 0) j=1;
+ }
+ outl(omr, DE4X5_OMR); /* Stop everything! */
+
+ if (j == 0) {
+ printk("%s: Setup frame timed out, status %08x\n", dev->name,
+ inl(DE4X5_STS));
+ status = -EIO;
+ }
+
+ lp->tx_new = (++lp->tx_new) % lp->txRingSize;
+ lp->tx_old = lp->tx_new;
+
+ return status;
+}
+
+/*
+** Writes a socket buffer address to the next available transmit descriptor.
+*/
+static int
+de4x5_queue_pkt(struct sk_buff *skb, struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int status = 0;
+ u_long flags = 0;
+
+ netif_stop_queue(dev);
+ if (lp->tx_enable == NO) { /* Cannot send for now */
+ return -1;
+ }
+
+ /*
+ ** Clean out the TX ring asynchronously to interrupts - sometimes the
+ ** interrupts are lost by delayed descriptor status updates relative to
+ ** the irq assertion, especially with a busy PCI bus.
+ */
+ spin_lock_irqsave(&lp->lock, flags);
+ de4x5_tx(dev);
+ spin_unlock_irqrestore(&lp->lock, flags);
+
+ /* Test if cache is already locked - requeue skb if so */
+ if (test_and_set_bit(0, (void *)&lp->cache.lock) && !lp->interrupt)
+ return -1;
+
+ /* Transmit descriptor ring full or stale skb */
+ if (netif_queue_stopped(dev) || (u_long) lp->tx_skb[lp->tx_new] > 1) {
+ if (lp->interrupt) {
+ de4x5_putb_cache(dev, skb); /* Requeue the buffer */
+ } else {
+ de4x5_put_cache(dev, skb);
+ }
+ if (de4x5_debug & DEBUG_TX) {
+ printk("%s: transmit busy, lost media or stale skb found:\n STS:%08x\n tbusy:%d\n IMR:%08x\n OMR:%08x\n Stale skb: %s\n",dev->name, inl(DE4X5_STS), netif_queue_stopped(dev), inl(DE4X5_IMR), inl(DE4X5_OMR), ((u_long) lp->tx_skb[lp->tx_new] > 1) ? "YES" : "NO");
+ }
+ } else if (skb->len > 0) {
+ /* If we already have stuff queued locally, use that first */
+ if (lp->cache.skb && !lp->interrupt) {
+ de4x5_put_cache(dev, skb);
+ skb = de4x5_get_cache(dev);
+ }
+
+ while (skb && !netif_queue_stopped(dev) &&
+ (u_long) lp->tx_skb[lp->tx_new] <= 1) {
+ spin_lock_irqsave(&lp->lock, flags);
+ netif_stop_queue(dev);
+ load_packet(dev, skb->data, TD_IC | TD_LS | TD_FS | skb->len, skb);
+ lp->stats.tx_bytes += skb->len;
+ outl(POLL_DEMAND, DE4X5_TPD);/* Start the TX */
+
+ lp->tx_new = (++lp->tx_new) % lp->txRingSize;
+ dev->trans_start = jiffies;
+
+ if (TX_BUFFS_AVAIL) {
+ netif_start_queue(dev); /* Another pkt may be queued */
+ }
+ skb = de4x5_get_cache(dev);
+ spin_unlock_irqrestore(&lp->lock, flags);
+ }
+ if (skb) de4x5_putb_cache(dev, skb);
+ }
+
+ lp->cache.lock = 0;
+
+ return status;
+}
+
+/*
+** The DE4X5 interrupt handler.
+**
+** I/O Read/Writes through intermediate PCI bridges are never 'posted',
+** so that the asserted interrupt always has some real data to work with -
+** if these I/O accesses are ever changed to memory accesses, ensure the
+** STS write is read immediately to complete the transaction if the adapter
+** is not on bus 0. Lost interrupts can still occur when the PCI bus load
+** is high and descriptor status bits cannot be set before the associated
+** interrupt is asserted and this routine entered.
+*/
+static irqreturn_t
+de4x5_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct net_device *dev = (struct net_device *)dev_id;
+ struct de4x5_private *lp;
+ s32 imr, omr, sts, limit;
+ u_long iobase;
+ unsigned int handled = 0;
+
+ if (dev == NULL) {
+ printk ("de4x5_interrupt(): irq %d for unknown device.\n", irq);
+ return IRQ_NONE;
+ }
+ lp = netdev_priv(dev);
+ spin_lock(&lp->lock);
+ iobase = dev->base_addr;
+
+ DISABLE_IRQs; /* Ensure non re-entrancy */
+
+ if (test_and_set_bit(MASK_INTERRUPTS, (void*) &lp->interrupt))
+ printk("%s: Re-entering the interrupt handler.\n", dev->name);
+
+ synchronize_irq(dev->irq);
+
+ for (limit=0; limit<8; limit++) {
+ sts = inl(DE4X5_STS); /* Read IRQ status */
+ outl(sts, DE4X5_STS); /* Reset the board interrupts */
+
+ if (!(sts & lp->irq_mask)) break;/* All done */
+ handled = 1;
+
+ if (sts & (STS_RI | STS_RU)) /* Rx interrupt (packet[s] arrived) */
+ de4x5_rx(dev);
+
+ if (sts & (STS_TI | STS_TU)) /* Tx interrupt (packet sent) */
+ de4x5_tx(dev);
+
+ if (sts & STS_LNF) { /* TP Link has failed */
+ lp->irq_mask &= ~IMR_LFM;
+ }
+
+ if (sts & STS_UNF) { /* Transmit underrun */
+ de4x5_txur(dev);
+ }
+
+ if (sts & STS_SE) { /* Bus Error */
+ STOP_DE4X5;
+ printk("%s: Fatal bus error occurred, sts=%#8x, device stopped.\n",
+ dev->name, sts);
+ spin_unlock(&lp->lock);
+ return IRQ_HANDLED;
+ }
+ }
+
+ /* Load the TX ring with any locally stored packets */
+ if (!test_and_set_bit(0, (void *)&lp->cache.lock)) {
+ while (lp->cache.skb && !netif_queue_stopped(dev) && lp->tx_enable) {
+ de4x5_queue_pkt(de4x5_get_cache(dev), dev);
+ }
+ lp->cache.lock = 0;
+ }
+
+ lp->interrupt = UNMASK_INTERRUPTS;
+ ENABLE_IRQs;
+ spin_unlock(&lp->lock);
+
+ return IRQ_RETVAL(handled);
+}
+
+static int
+de4x5_rx(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int entry;
+ s32 status;
+
+ for (entry=lp->rx_new; (s32)le32_to_cpu(lp->rx_ring[entry].status)>=0;
+ entry=lp->rx_new) {
+ status = (s32)le32_to_cpu(lp->rx_ring[entry].status);
+
+ if (lp->rx_ovf) {
+ if (inl(DE4X5_MFC) & MFC_FOCM) {
+ de4x5_rx_ovfc(dev);
+ break;
+ }
+ }
+
+ if (status & RD_FS) { /* Remember the start of frame */
+ lp->rx_old = entry;
+ }
+
+ if (status & RD_LS) { /* Valid frame status */
+ if (lp->tx_enable) lp->linkOK++;
+ if (status & RD_ES) { /* There was an error. */
+ lp->stats.rx_errors++; /* Update the error stats. */
+ if (status & (RD_RF | RD_TL)) lp->stats.rx_frame_errors++;
+ if (status & RD_CE) lp->stats.rx_crc_errors++;
+ if (status & RD_OF) lp->stats.rx_fifo_errors++;
+ if (status & RD_TL) lp->stats.rx_length_errors++;
+ if (status & RD_RF) lp->pktStats.rx_runt_frames++;
+ if (status & RD_CS) lp->pktStats.rx_collision++;
+ if (status & RD_DB) lp->pktStats.rx_dribble++;
+ if (status & RD_OF) lp->pktStats.rx_overflow++;
+ } else { /* A valid frame received */
+ struct sk_buff *skb;
+ short pkt_len = (short)(le32_to_cpu(lp->rx_ring[entry].status)
+ >> 16) - 4;
+
+ if ((skb = de4x5_alloc_rx_buff(dev, entry, pkt_len)) == NULL) {
+ printk("%s: Insufficient memory; nuking packet.\n",
+ dev->name);
+ lp->stats.rx_dropped++;
+ } else {
+ de4x5_dbg_rx(skb, pkt_len);
+
+ /* Push up the protocol stack */
+ skb->protocol=eth_type_trans(skb,dev);
+ de4x5_local_stats(dev, skb->data, pkt_len);
+ netif_rx(skb);
+
+ /* Update stats */
+ dev->last_rx = jiffies;
+ lp->stats.rx_packets++;
+ lp->stats.rx_bytes += pkt_len;
+ }
+ }
+
+ /* Change buffer ownership for this frame, back to the adapter */
+ for (;lp->rx_old!=entry;lp->rx_old=(++lp->rx_old)%lp->rxRingSize) {
+ lp->rx_ring[lp->rx_old].status = cpu_to_le32(R_OWN);
+ barrier();
+ }
+ lp->rx_ring[entry].status = cpu_to_le32(R_OWN);
+ barrier();
+ }
+
+ /*
+ ** Update entry information
+ */
+ lp->rx_new = (++lp->rx_new) % lp->rxRingSize;
+ }
+
+ return 0;
+}
+
+static inline void
+de4x5_free_tx_buff(struct de4x5_private *lp, int entry)
+{
+ dma_unmap_single(lp->gendev, le32_to_cpu(lp->tx_ring[entry].buf),
+ le32_to_cpu(lp->tx_ring[entry].des1) & TD_TBS1,
+ DMA_TO_DEVICE);
+ if ((u_long) lp->tx_skb[entry] > 1)
+ dev_kfree_skb_irq(lp->tx_skb[entry]);
+ lp->tx_skb[entry] = NULL;
+}
+
+/*
+** Buffer sent - check for TX buffer errors.
+*/
+static int
+de4x5_tx(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int entry;
+ s32 status;
+
+ for (entry = lp->tx_old; entry != lp->tx_new; entry = lp->tx_old) {
+ status = (s32)le32_to_cpu(lp->tx_ring[entry].status);
+ if (status < 0) { /* Buffer not sent yet */
+ break;
+ } else if (status != 0x7fffffff) { /* Not setup frame */
+ if (status & TD_ES) { /* An error happened */
+ lp->stats.tx_errors++;
+ if (status & TD_NC) lp->stats.tx_carrier_errors++;
+ if (status & TD_LC) lp->stats.tx_window_errors++;
+ if (status & TD_UF) lp->stats.tx_fifo_errors++;
+ if (status & TD_EC) lp->pktStats.excessive_collisions++;
+ if (status & TD_DE) lp->stats.tx_aborted_errors++;
+
+ if (TX_PKT_PENDING) {
+ outl(POLL_DEMAND, DE4X5_TPD);/* Restart a stalled TX */
+ }
+ } else { /* Packet sent */
+ lp->stats.tx_packets++;
+ if (lp->tx_enable) lp->linkOK++;
+ }
+ /* Update the collision counter */
+ lp->stats.collisions += ((status & TD_EC) ? 16 :
+ ((status & TD_CC) >> 3));
+
+ /* Free the buffer. */
+ if (lp->tx_skb[entry] != NULL)
+ de4x5_free_tx_buff(lp, entry);
+ }
+
+ /* Update all the pointers */
+ lp->tx_old = (++lp->tx_old) % lp->txRingSize;
+ }
+
+ /* Any resources available? */
+ if (TX_BUFFS_AVAIL && netif_queue_stopped(dev)) {
+ if (lp->interrupt)
+ netif_wake_queue(dev);
+ else
+ netif_start_queue(dev);
+ }
+
+ return 0;
+}
+
+static int
+de4x5_ast(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int next_tick = DE4X5_AUTOSENSE_MS;
+
+ disable_ast(dev);
+
+ if (lp->useSROM) {
+ next_tick = srom_autoconf(dev);
+ } else if (lp->chipset == DC21140) {
+ next_tick = dc21140m_autoconf(dev);
+ } else if (lp->chipset == DC21041) {
+ next_tick = dc21041_autoconf(dev);
+ } else if (lp->chipset == DC21040) {
+ next_tick = dc21040_autoconf(dev);
+ }
+ lp->linkOK = 0;
+ enable_ast(dev, next_tick);
+
+ return 0;
+}
+
+static int
+de4x5_txur(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int omr;
+
+ omr = inl(DE4X5_OMR);
+ if (!(omr & OMR_SF) || (lp->chipset==DC21041) || (lp->chipset==DC21040)) {
+ omr &= ~(OMR_ST|OMR_SR);
+ outl(omr, DE4X5_OMR);
+ while (inl(DE4X5_STS) & STS_TS);
+ if ((omr & OMR_TR) < OMR_TR) {
+ omr += 0x4000;
+ } else {
+ omr |= OMR_SF;
+ }
+ outl(omr | OMR_ST | OMR_SR, DE4X5_OMR);
+ }
+
+ return 0;
+}
+
+static int
+de4x5_rx_ovfc(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int omr;
+
+ omr = inl(DE4X5_OMR);
+ outl(omr & ~OMR_SR, DE4X5_OMR);
+ while (inl(DE4X5_STS) & STS_RS);
+
+ for (; (s32)le32_to_cpu(lp->rx_ring[lp->rx_new].status)>=0;) {
+ lp->rx_ring[lp->rx_new].status = cpu_to_le32(R_OWN);
+ lp->rx_new = (++lp->rx_new % lp->rxRingSize);
+ }
+
+ outl(omr, DE4X5_OMR);
+
+ return 0;
+}
+
+static int
+de4x5_close(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ s32 imr, omr;
+
+ disable_ast(dev);
+
+ netif_stop_queue(dev);
+
+ if (de4x5_debug & DEBUG_CLOSE) {
+ printk("%s: Shutting down ethercard, status was %8.8x.\n",
+ dev->name, inl(DE4X5_STS));
+ }
+
+ /*
+ ** We stop the DE4X5 here... mask interrupts and stop TX & RX
+ */
+ DISABLE_IRQs;
+ STOP_DE4X5;
+
+ /* Free the associated irq */
+ free_irq(dev->irq, dev);
+ lp->state = CLOSED;
+
+ /* Free any socket buffers */
+ de4x5_free_rx_buffs(dev);
+ de4x5_free_tx_buffs(dev);
+
+ /* Put the adapter to sleep to save power */
+ yawn(dev, SLEEP);
+
+ return 0;
+}
+
+static struct net_device_stats *
+de4x5_get_stats(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+
+ lp->stats.rx_missed_errors = (int)(inl(DE4X5_MFC) & (MFC_OVFL | MFC_CNTR));
+
+ return &lp->stats;
+}
+
+static void
+de4x5_local_stats(struct net_device *dev, char *buf, int pkt_len)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int i;
+
+ for (i=1; i<DE4X5_PKT_STAT_SZ-1; i++) {
+ if (pkt_len < (i*DE4X5_PKT_BIN_SZ)) {
+ lp->pktStats.bins[i]++;
+ i = DE4X5_PKT_STAT_SZ;
+ }
+ }
+ if (buf[0] & 0x01) { /* Multicast/Broadcast */
+ if ((*(s32 *)&buf[0] == -1) && (*(s16 *)&buf[4] == -1)) {
+ lp->pktStats.broadcast++;
+ } else {
+ lp->pktStats.multicast++;
+ }
+ } else if ((*(s32 *)&buf[0] == *(s32 *)&dev->dev_addr[0]) &&
+ (*(s16 *)&buf[4] == *(s16 *)&dev->dev_addr[4])) {
+ lp->pktStats.unicast++;
+ }
+
+ lp->pktStats.bins[0]++; /* Duplicates stats.rx_packets */
+ if (lp->pktStats.bins[0] == 0) { /* Reset counters */
+ memset((char *)&lp->pktStats, 0, sizeof(lp->pktStats));
+ }
+
+ return;
+}
+
+/*
+** Removes the TD_IC flag from previous descriptor to improve TX performance.
+** If the flag is changed on a descriptor that is being read by the hardware,
+** I assume PCI transaction ordering will mean you are either successful or
+** just miss asserting the change to the hardware. Anyway you're messing with
+** a descriptor you don't own, but this shouldn't kill the chip provided
+** the descriptor register is read only to the hardware.
+*/
+static void
+load_packet(struct net_device *dev, char *buf, u32 flags, struct sk_buff *skb)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int entry = (lp->tx_new ? lp->tx_new-1 : lp->txRingSize-1);
+ dma_addr_t buf_dma = dma_map_single(lp->gendev, buf, flags & TD_TBS1, DMA_TO_DEVICE);
+
+ lp->tx_ring[lp->tx_new].buf = cpu_to_le32(buf_dma);
+ lp->tx_ring[lp->tx_new].des1 &= cpu_to_le32(TD_TER);
+ lp->tx_ring[lp->tx_new].des1 |= cpu_to_le32(flags);
+ lp->tx_skb[lp->tx_new] = skb;
+ lp->tx_ring[entry].des1 &= cpu_to_le32(~TD_IC);
+ barrier();
+
+ lp->tx_ring[lp->tx_new].status = cpu_to_le32(T_OWN);
+ barrier();
+}
+
+/*
+** Set or clear the multicast filter for this adaptor.
+*/
+static void
+set_multicast_list(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+
+ /* First, double check that the adapter is open */
+ if (lp->state == OPEN) {
+ if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */
+ u32 omr;
+ omr = inl(DE4X5_OMR);
+ omr |= OMR_PR;
+ outl(omr, DE4X5_OMR);
+ } else {
+ SetMulticastFilter(dev);
+ load_packet(dev, lp->setup_frame, TD_IC | PERFECT_F | TD_SET |
+ SETUP_FRAME_LEN, (struct sk_buff *)1);
+
+ lp->tx_new = (++lp->tx_new) % lp->txRingSize;
+ outl(POLL_DEMAND, DE4X5_TPD); /* Start the TX */
+ dev->trans_start = jiffies;
+ }
+ }
+}
+
+/*
+** Calculate the hash code and update the logical address filter
+** from a list of ethernet multicast addresses.
+** Little endian crc one liner from Matt Thomas, DEC.
+*/
+static void
+SetMulticastFilter(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ struct dev_mc_list *dmi=dev->mc_list;
+ u_long iobase = dev->base_addr;
+ int i, j, bit, byte;
+ u16 hashcode;
+ u32 omr, crc;
+ char *pa;
+ unsigned char *addrs;
+
+ omr = inl(DE4X5_OMR);
+ omr &= ~(OMR_PR | OMR_PM);
+ pa = build_setup_frame(dev, ALL); /* Build the basic frame */
+
+ if ((dev->flags & IFF_ALLMULTI) || (dev->mc_count > 14)) {
+ omr |= OMR_PM; /* Pass all multicasts */
+ } else if (lp->setup_f == HASH_PERF) { /* Hash Filtering */
+ for (i=0;i<dev->mc_count;i++) { /* for each address in the list */
+ addrs=dmi->dmi_addr;
+ dmi=dmi->next;
+ if ((*addrs & 0x01) == 1) { /* multicast address? */
+ crc = ether_crc_le(ETH_ALEN, addrs);
+ hashcode = crc & HASH_BITS; /* hashcode is 9 LSb of CRC */
+
+ byte = hashcode >> 3; /* bit[3-8] -> byte in filter */
+ bit = 1 << (hashcode & 0x07);/* bit[0-2] -> bit in byte */
+
+ byte <<= 1; /* calc offset into setup frame */
+ if (byte & 0x02) {
+ byte -= 1;
+ }
+ lp->setup_frame[byte] |= bit;
+ }
+ }
+ } else { /* Perfect filtering */
+ for (j=0; j<dev->mc_count; j++) {
+ addrs=dmi->dmi_addr;
+ dmi=dmi->next;
+ for (i=0; i<ETH_ALEN; i++) {
+ *(pa + (i&1)) = *addrs++;
+ if (i & 0x01) pa += 4;
+ }
+ }
+ }
+ outl(omr, DE4X5_OMR);
+
+ return;
+}
+
+#ifdef CONFIG_EISA
+
+static u_char de4x5_irq[] = EISA_ALLOWED_IRQ_LIST;
+
+static int __init de4x5_eisa_probe (struct device *gendev)
+{
+ struct eisa_device *edev;
+ u_long iobase;
+ u_char irq, regval;
+ u_short vendor;
+ u32 cfid;
+ int status, device;
+ struct net_device *dev;
+ struct de4x5_private *lp;
+
+ edev = to_eisa_device (gendev);
+ iobase = edev->base_addr;
+
+ if (!request_region (iobase, DE4X5_EISA_TOTAL_SIZE, "de4x5"))
+ return -EBUSY;
+
+ if (!request_region (iobase + DE4X5_EISA_IO_PORTS,
+ DE4X5_EISA_TOTAL_SIZE, "de4x5")) {
+ status = -EBUSY;
+ goto release_reg_1;
+ }
+
+ if (!(dev = alloc_etherdev (sizeof (struct de4x5_private)))) {
+ status = -ENOMEM;
+ goto release_reg_2;
+ }
+ lp = netdev_priv(dev);
+
+ cfid = (u32) inl(PCI_CFID);
+ lp->cfrv = (u_short) inl(PCI_CFRV);
+ device = (cfid >> 8) & 0x00ffff00;
+ vendor = (u_short) cfid;
+
+ /* Read the EISA Configuration Registers */
+ regval = inb(EISA_REG0) & (ER0_INTL | ER0_INTT);
+#ifdef CONFIG_ALPHA
+ /* Looks like the Jensen firmware (rev 2.2) doesn't really
+ * care about the EISA configuration, and thus doesn't
+ * configure the PLX bridge properly. Oh well... Simply mimic
+ * the EISA config file to sort it out. */
+
+ /* EISA REG1: Assert DecChip 21040 HW Reset */
+ outb (ER1_IAM | 1, EISA_REG1);
+ mdelay (1);
+
+ /* EISA REG1: Deassert DecChip 21040 HW Reset */
+ outb (ER1_IAM, EISA_REG1);
+ mdelay (1);
+
+ /* EISA REG3: R/W Burst Transfer Enable */
+ outb (ER3_BWE | ER3_BRE, EISA_REG3);
+
+ /* 32_bit slave/master, Preempt Time=23 bclks, Unlatched Interrupt */
+ outb (ER0_BSW | ER0_BMW | ER0_EPT | regval, EISA_REG0);
+#endif
+ irq = de4x5_irq[(regval >> 1) & 0x03];
+
+ if (is_DC2114x) {
+ device = ((lp->cfrv & CFRV_RN) < DC2114x_BRK ? DC21142 : DC21143);
+ }
+ lp->chipset = device;
+ lp->bus = EISA;
+
+ /* Write the PCI Configuration Registers */
+ outl(PCI_COMMAND_IO | PCI_COMMAND_MASTER, PCI_CFCS);
+ outl(0x00006000, PCI_CFLT);
+ outl(iobase, PCI_CBIO);
+
+ DevicePresent(dev, EISA_APROM);
+
+ dev->irq = irq;
+
+ if (!(status = de4x5_hw_init (dev, iobase, gendev))) {
+ return 0;
+ }
+
+ free_netdev (dev);
+ release_reg_2:
+ release_region (iobase + DE4X5_EISA_IO_PORTS, DE4X5_EISA_TOTAL_SIZE);
+ release_reg_1:
+ release_region (iobase, DE4X5_EISA_TOTAL_SIZE);
+
+ return status;
+}
+
+static int __devexit de4x5_eisa_remove (struct device *device)
+{
+ struct net_device *dev;
+ u_long iobase;
+
+ dev = device->driver_data;
+ iobase = dev->base_addr;
+
+ unregister_netdev (dev);
+ free_netdev (dev);
+ release_region (iobase + DE4X5_EISA_IO_PORTS, DE4X5_EISA_TOTAL_SIZE);
+ release_region (iobase, DE4X5_EISA_TOTAL_SIZE);
+
+ return 0;
+}
+
+static struct eisa_device_id de4x5_eisa_ids[] = {
+ { "DEC4250", 0 }, /* 0 is the board name index... */
+ { "" }
+};
+
+static struct eisa_driver de4x5_eisa_driver = {
+ .id_table = de4x5_eisa_ids,
+ .driver = {
+ .name = "de4x5",
+ .probe = de4x5_eisa_probe,
+ .remove = __devexit_p (de4x5_eisa_remove),
+ }
+};
+MODULE_DEVICE_TABLE(eisa, de4x5_eisa_ids);
+#endif
+
+#ifdef CONFIG_PCI
+
+/*
+** This function searches the current bus (which is >0) for a DECchip with an
+** SROM, so that in multiport cards that have one SROM shared between multiple
+** DECchips, we can find the base SROM irrespective of the BIOS scan direction.
+** For single port cards this is a time waster...
+*/
+static void __devinit
+srom_search(struct net_device *dev, struct pci_dev *pdev)
+{
+ u_char pb;
+ u_short vendor, status;
+ u_int irq = 0, device;
+ u_long iobase = 0; /* Clear upper 32 bits in Alphas */
+ int i, j, cfrv;
+ struct de4x5_private *lp = netdev_priv(dev);
+ struct list_head *walk = &pdev->bus_list;
+
+ for (walk = walk->next; walk != &pdev->bus_list; walk = walk->next) {
+ struct pci_dev *this_dev = pci_dev_b(walk);
+
+ /* Skip the pci_bus list entry */
+ if (list_entry(walk, struct pci_bus, devices) == pdev->bus) continue;
+
+ vendor = this_dev->vendor;
+ device = this_dev->device << 8;
+ if (!(is_DC21040 || is_DC21041 || is_DC21140 || is_DC2114x)) continue;
+
+ /* Get the chip configuration revision register */
+ pb = this_dev->bus->number;
+ pci_read_config_dword(this_dev, PCI_REVISION_ID, &cfrv);
+
+ /* Set the device number information */
+ lp->device = PCI_SLOT(this_dev->devfn);
+ lp->bus_num = pb;
+
+ /* Set the chipset information */
+ if (is_DC2114x) {
+ device = ((cfrv & CFRV_RN) < DC2114x_BRK ? DC21142 : DC21143);
+ }
+ lp->chipset = device;
+
+ /* Get the board I/O address (64 bits on sparc64) */
+ iobase = pci_resource_start(this_dev, 0);
+
+ /* Fetch the IRQ to be used */
+ irq = this_dev->irq;
+ if ((irq == 0) || (irq == 0xff) || ((int)irq == -1)) continue;
+
+ /* Check if I/O accesses are enabled */
+ pci_read_config_word(this_dev, PCI_COMMAND, &status);
+ if (!(status & PCI_COMMAND_IO)) continue;
+
+ /* Search for a valid SROM attached to this DECchip */
+ DevicePresent(dev, DE4X5_APROM);
+ for (j=0, i=0; i<ETH_ALEN; i++) {
+ j += (u_char) *((u_char *)&lp->srom + SROM_HWADD + i);
+ }
+ if ((j != 0) && (j != 0x5fa)) {
+ last.chipset = device;
+ last.bus = pb;
+ last.irq = irq;
+ for (i=0; i<ETH_ALEN; i++) {
+ last.addr[i] = (u_char)*((u_char *)&lp->srom + SROM_HWADD + i);
+ }
+ return;
+ }
+ }
+
+ return;
+}
+
+/*
+** PCI bus I/O device probe
+** NB: PCI I/O accesses and Bus Mastering are enabled by the PCI BIOS, not
+** the driver. Some PCI BIOS's, pre V2.1, need the slot + features to be
+** enabled by the user first in the set up utility. Hence we just check for
+** enabled features and silently ignore the card if they're not.
+**
+** STOP PRESS: Some BIOS's __require__ the driver to enable the bus mastering
+** bit. Here, check for I/O accesses and then set BM. If you put the card in
+** a non BM slot, you're on your own (and complain to the PC vendor that your
+** PC doesn't conform to the PCI standard)!
+**
+** This function is only compatible with the *latest* 2.1.x kernels. For 2.0.x
+** kernels use the V0.535[n] drivers.
+*/
+
+static int __devinit de4x5_pci_probe (struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ u_char pb, pbus = 0, dev_num, dnum = 0, timer;
+ u_short vendor, status;
+ u_int irq = 0, device;
+ u_long iobase = 0; /* Clear upper 32 bits in Alphas */
+ int error;
+ struct net_device *dev;
+ struct de4x5_private *lp;
+
+ dev_num = PCI_SLOT(pdev->devfn);
+ pb = pdev->bus->number;
+
+ if (io) { /* probe a single PCI device */
+ pbus = (u_short)(io >> 8);
+ dnum = (u_short)(io & 0xff);
+ if ((pbus != pb) || (dnum != dev_num))
+ return -ENODEV;
+ }
+
+ vendor = pdev->vendor;
+ device = pdev->device << 8;
+ if (!(is_DC21040 || is_DC21041 || is_DC21140 || is_DC2114x))
+ return -ENODEV;
+
+ /* Ok, the device seems to be for us. */
+ if ((error = pci_enable_device (pdev)))
+ return error;
+
+ if (!(dev = alloc_etherdev (sizeof (struct de4x5_private)))) {
+ error = -ENOMEM;
+ goto disable_dev;
+ }
+
+ lp = netdev_priv(dev);
+ lp->bus = PCI;
+ lp->bus_num = 0;
+
+ /* Search for an SROM on this bus */
+ if (lp->bus_num != pb) {
+ lp->bus_num = pb;
+ srom_search(dev, pdev);
+ }
+
+ /* Get the chip configuration revision register */
+ pci_read_config_dword(pdev, PCI_REVISION_ID, &lp->cfrv);
+
+ /* Set the device number information */
+ lp->device = dev_num;
+ lp->bus_num = pb;
+
+ /* Set the chipset information */
+ if (is_DC2114x) {
+ device = ((lp->cfrv & CFRV_RN) < DC2114x_BRK ? DC21142 : DC21143);
+ }
+ lp->chipset = device;
+
+ /* Get the board I/O address (64 bits on sparc64) */
+ iobase = pci_resource_start(pdev, 0);
+
+ /* Fetch the IRQ to be used */
+ irq = pdev->irq;
+ if ((irq == 0) || (irq == 0xff) || ((int)irq == -1)) {
+ error = -ENODEV;
+ goto free_dev;
+ }
+
+ /* Check if I/O accesses and Bus Mastering are enabled */
+ pci_read_config_word(pdev, PCI_COMMAND, &status);
+#ifdef __powerpc__
+ if (!(status & PCI_COMMAND_IO)) {
+ status |= PCI_COMMAND_IO;
+ pci_write_config_word(pdev, PCI_COMMAND, status);
+ pci_read_config_word(pdev, PCI_COMMAND, &status);
+ }
+#endif /* __powerpc__ */
+ if (!(status & PCI_COMMAND_IO)) {
+ error = -ENODEV;
+ goto free_dev;
+ }
+
+ if (!(status & PCI_COMMAND_MASTER)) {
+ status |= PCI_COMMAND_MASTER;
+ pci_write_config_word(pdev, PCI_COMMAND, status);
+ pci_read_config_word(pdev, PCI_COMMAND, &status);
+ }
+ if (!(status & PCI_COMMAND_MASTER)) {
+ error = -ENODEV;
+ goto free_dev;
+ }
+
+ /* Check the latency timer for values >= 0x60 */
+ pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &timer);
+ if (timer < 0x60) {
+ pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x60);
+ }
+
+ DevicePresent(dev, DE4X5_APROM);
+
+ if (!request_region (iobase, DE4X5_PCI_TOTAL_SIZE, "de4x5")) {
+ error = -EBUSY;
+ goto free_dev;
+ }
+
+ dev->irq = irq;
+
+ if ((error = de4x5_hw_init(dev, iobase, &pdev->dev))) {
+ goto release;
+ }
+
+ return 0;
+
+ release:
+ release_region (iobase, DE4X5_PCI_TOTAL_SIZE);
+ free_dev:
+ free_netdev (dev);
+ disable_dev:
+ pci_disable_device (pdev);
+ return error;
+}
+
+static void __devexit de4x5_pci_remove (struct pci_dev *pdev)
+{
+ struct net_device *dev;
+ u_long iobase;
+
+ dev = pdev->dev.driver_data;
+ iobase = dev->base_addr;
+
+ unregister_netdev (dev);
+ free_netdev (dev);
+ release_region (iobase, DE4X5_PCI_TOTAL_SIZE);
+ pci_disable_device (pdev);
+}
+
+static struct pci_device_id de4x5_pci_tbl[] = {
+ { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_PLUS,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
+ { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_FAST,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
+ { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21142,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
+ { },
+};
+
+static struct pci_driver de4x5_pci_driver = {
+ .name = "de4x5",
+ .id_table = de4x5_pci_tbl,
+ .probe = de4x5_pci_probe,
+ .remove = __devexit_p (de4x5_pci_remove),
+};
+
+#endif
+
+/*
+** Auto configure the media here rather than setting the port at compile
+** time. This routine is called by de4x5_init() and when a loss of media is
+** detected (excessive collisions, loss of carrier, no carrier or link fail
+** [TP] or no recent receive activity) to check whether the user has been
+** sneaky and changed the port on us.
+*/
+static int
+autoconf_media(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int next_tick = DE4X5_AUTOSENSE_MS;
+
+ lp->linkOK = 0;
+ lp->c_media = AUTO; /* Bogus last media */
+ disable_ast(dev);
+ inl(DE4X5_MFC); /* Zero the lost frames counter */
+ lp->media = INIT;
+ lp->tcount = 0;
+
+ if (lp->useSROM) {
+ next_tick = srom_autoconf(dev);
+ } else if (lp->chipset == DC21040) {
+ next_tick = dc21040_autoconf(dev);
+ } else if (lp->chipset == DC21041) {
+ next_tick = dc21041_autoconf(dev);
+ } else if (lp->chipset == DC21140) {
+ next_tick = dc21140m_autoconf(dev);
+ }
+
+ enable_ast(dev, next_tick);
+
+ return (lp->media);
+}
+
+/*
+** Autoconfigure the media when using the DC21040. AUI cannot be distinguished
+** from BNC as the port has a jumper to set thick or thin wire. When set for
+** BNC, the BNC port will indicate activity if it's not terminated correctly.
+** The only way to test for that is to place a loopback packet onto the
+** network and watch for errors. Since we're messing with the interrupt mask
+** register, disable the board interrupts and do not allow any more packets to
+** be queued to the hardware. Re-enable everything only when the media is
+** found.
+** I may have to "age out" locally queued packets so that the higher layer
+** timeouts don't effectively duplicate packets on the network.
+*/
+static int
+dc21040_autoconf(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int next_tick = DE4X5_AUTOSENSE_MS;
+ s32 imr;
+
+ switch (lp->media) {
+ case INIT:
+ DISABLE_IRQs;
+ lp->tx_enable = NO;
+ lp->timeout = -1;
+ de4x5_save_skbs(dev);
+ if ((lp->autosense == AUTO) || (lp->autosense == TP)) {
+ lp->media = TP;
+ } else if ((lp->autosense == BNC) || (lp->autosense == AUI) || (lp->autosense == BNC_AUI)) {
+ lp->media = BNC_AUI;
+ } else if (lp->autosense == EXT_SIA) {
+ lp->media = EXT_SIA;
+ } else {
+ lp->media = NC;
+ }
+ lp->local_state = 0;
+ next_tick = dc21040_autoconf(dev);
+ break;
+
+ case TP:
+ next_tick = dc21040_state(dev, 0x8f01, 0xffff, 0x0000, 3000, BNC_AUI,
+ TP_SUSPECT, test_tp);
+ break;
+
+ case TP_SUSPECT:
+ next_tick = de4x5_suspect_state(dev, 1000, TP, test_tp, dc21040_autoconf);
+ break;
+
+ case BNC:
+ case AUI:
+ case BNC_AUI:
+ next_tick = dc21040_state(dev, 0x8f09, 0x0705, 0x0006, 3000, EXT_SIA,
+ BNC_AUI_SUSPECT, ping_media);
+ break;
+
+ case BNC_AUI_SUSPECT:
+ next_tick = de4x5_suspect_state(dev, 1000, BNC_AUI, ping_media, dc21040_autoconf);
+ break;
+
+ case EXT_SIA:
+ next_tick = dc21040_state(dev, 0x3041, 0x0000, 0x0006, 3000,
+ NC, EXT_SIA_SUSPECT, ping_media);
+ break;
+
+ case EXT_SIA_SUSPECT:
+ next_tick = de4x5_suspect_state(dev, 1000, EXT_SIA, ping_media, dc21040_autoconf);
+ break;
+
+ case NC:
+ /* default to TP for all */
+ reset_init_sia(dev, 0x8f01, 0xffff, 0x0000);
+ if (lp->media != lp->c_media) {
+ de4x5_dbg_media(dev);
+ lp->c_media = lp->media;
+ }
+ lp->media = INIT;
+ lp->tx_enable = NO;
+ break;
+ }
+
+ return next_tick;
+}
+
+static int
+dc21040_state(struct net_device *dev, int csr13, int csr14, int csr15, int timeout,
+ int next_state, int suspect_state,
+ int (*fn)(struct net_device *, int))
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int next_tick = DE4X5_AUTOSENSE_MS;
+ int linkBad;
+
+ switch (lp->local_state) {
+ case 0:
+ reset_init_sia(dev, csr13, csr14, csr15);
+ lp->local_state++;
+ next_tick = 500;
+ break;
+
+ case 1:
+ if (!lp->tx_enable) {
+ linkBad = fn(dev, timeout);
+ if (linkBad < 0) {
+ next_tick = linkBad & ~TIMER_CB;
+ } else {
+ if (linkBad && (lp->autosense == AUTO)) {
+ lp->local_state = 0;
+ lp->media = next_state;
+ } else {
+ de4x5_init_connection(dev);
+ }
+ }
+ } else if (!lp->linkOK && (lp->autosense == AUTO)) {
+ lp->media = suspect_state;
+ next_tick = 3000;
+ }
+ break;
+ }
+
+ return next_tick;
+}
+
+static int
+de4x5_suspect_state(struct net_device *dev, int timeout, int prev_state,
+ int (*fn)(struct net_device *, int),
+ int (*asfn)(struct net_device *))
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int next_tick = DE4X5_AUTOSENSE_MS;
+ int linkBad;
+
+ switch (lp->local_state) {
+ case 1:
+ if (lp->linkOK) {
+ lp->media = prev_state;
+ } else {
+ lp->local_state++;
+ next_tick = asfn(dev);
+ }
+ break;
+
+ case 2:
+ linkBad = fn(dev, timeout);
+ if (linkBad < 0) {
+ next_tick = linkBad & ~TIMER_CB;
+ } else if (!linkBad) {
+ lp->local_state--;
+ lp->media = prev_state;
+ } else {
+ lp->media = INIT;
+ lp->tcount++;
+ }
+ }
+
+ return next_tick;
+}
+
+/*
+** Autoconfigure the media when using the DC21041. AUI needs to be tested
+** before BNC, because the BNC port will indicate activity if it's not
+** terminated correctly. The only way to test for that is to place a loopback
+** packet onto the network and watch for errors. Since we're messing with
+** the interrupt mask register, disable the board interrupts and do not allow
+** any more packets to be queued to the hardware. Re-enable everything only
+** when the media is found.
+*/
+static int
+dc21041_autoconf(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ s32 sts, irqs, irq_mask, imr, omr;
+ int next_tick = DE4X5_AUTOSENSE_MS;
+
+ switch (lp->media) {
+ case INIT:
+ DISABLE_IRQs;
+ lp->tx_enable = NO;
+ lp->timeout = -1;
+ de4x5_save_skbs(dev); /* Save non transmitted skb's */
+ if ((lp->autosense == AUTO) || (lp->autosense == TP_NW)) {
+ lp->media = TP; /* On chip auto negotiation is broken */
+ } else if (lp->autosense == TP) {
+ lp->media = TP;
+ } else if (lp->autosense == BNC) {
+ lp->media = BNC;
+ } else if (lp->autosense == AUI) {
+ lp->media = AUI;
+ } else {
+ lp->media = NC;
+ }
+ lp->local_state = 0;
+ next_tick = dc21041_autoconf(dev);
+ break;
+
+ case TP_NW:
+ if (lp->timeout < 0) {
+ omr = inl(DE4X5_OMR);/* Set up full duplex for the autonegotiate */
+ outl(omr | OMR_FDX, DE4X5_OMR);
+ }
+ irqs = STS_LNF | STS_LNP;
+ irq_mask = IMR_LFM | IMR_LPM;
+ sts = test_media(dev, irqs, irq_mask, 0xef01, 0xffff, 0x0008, 2400);
+ if (sts < 0) {
+ next_tick = sts & ~TIMER_CB;
+ } else {
+ if (sts & STS_LNP) {
+ lp->media = ANS;
+ } else {
+ lp->media = AUI;
+ }
+ next_tick = dc21041_autoconf(dev);
+ }
+ break;
+
+ case ANS:
+ if (!lp->tx_enable) {
+ irqs = STS_LNP;
+ irq_mask = IMR_LPM;
+ sts = test_ans(dev, irqs, irq_mask, 3000);
+ if (sts < 0) {
+ next_tick = sts & ~TIMER_CB;
+ } else {
+ if (!(sts & STS_LNP) && (lp->autosense == AUTO)) {
+ lp->media = TP;
+ next_tick = dc21041_autoconf(dev);
+ } else {
+ lp->local_state = 1;
+ de4x5_init_connection(dev);
+ }
+ }
+ } else if (!lp->linkOK && (lp->autosense == AUTO)) {
+ lp->media = ANS_SUSPECT;
+ next_tick = 3000;
+ }
+ break;
+
+ case ANS_SUSPECT:
+ next_tick = de4x5_suspect_state(dev, 1000, ANS, test_tp, dc21041_autoconf);
+ break;
+
+ case TP:
+ if (!lp->tx_enable) {
+ if (lp->timeout < 0) {
+ omr = inl(DE4X5_OMR); /* Set up half duplex for TP */
+ outl(omr & ~OMR_FDX, DE4X5_OMR);
+ }
+ irqs = STS_LNF | STS_LNP;
+ irq_mask = IMR_LFM | IMR_LPM;
+ sts = test_media(dev,irqs, irq_mask, 0xef01, 0xff3f, 0x0008, 2400);
+ if (sts < 0) {
+ next_tick = sts & ~TIMER_CB;
+ } else {
+ if (!(sts & STS_LNP) && (lp->autosense == AUTO)) {
+ if (inl(DE4X5_SISR) & SISR_NRA) {
+ lp->media = AUI; /* Non selected port activity */
+ } else {
+ lp->media = BNC;
+ }
+ next_tick = dc21041_autoconf(dev);
+ } else {
+ lp->local_state = 1;
+ de4x5_init_connection(dev);
+ }
+ }
+ } else if (!lp->linkOK && (lp->autosense == AUTO)) {
+ lp->media = TP_SUSPECT;
+ next_tick = 3000;
+ }
+ break;
+
+ case TP_SUSPECT:
+ next_tick = de4x5_suspect_state(dev, 1000, TP, test_tp, dc21041_autoconf);
+ break;
+
+ case AUI:
+ if (!lp->tx_enable) {
+ if (lp->timeout < 0) {
+ omr = inl(DE4X5_OMR); /* Set up half duplex for AUI */
+ outl(omr & ~OMR_FDX, DE4X5_OMR);
+ }
+ irqs = 0;
+ irq_mask = 0;
+ sts = test_media(dev,irqs, irq_mask, 0xef09, 0xf73d, 0x000e, 1000);
+ if (sts < 0) {
+ next_tick = sts & ~TIMER_CB;
+ } else {
+ if (!(inl(DE4X5_SISR) & SISR_SRA) && (lp->autosense == AUTO)) {
+ lp->media = BNC;
+ next_tick = dc21041_autoconf(dev);
+ } else {
+ lp->local_state = 1;
+ de4x5_init_connection(dev);
+ }
+ }
+ } else if (!lp->linkOK && (lp->autosense == AUTO)) {
+ lp->media = AUI_SUSPECT;
+ next_tick = 3000;
+ }
+ break;
+
+ case AUI_SUSPECT:
+ next_tick = de4x5_suspect_state(dev, 1000, AUI, ping_media, dc21041_autoconf);
+ break;
+
+ case BNC:
+ switch (lp->local_state) {
+ case 0:
+ if (lp->timeout < 0) {
+ omr = inl(DE4X5_OMR); /* Set up half duplex for BNC */
+ outl(omr & ~OMR_FDX, DE4X5_OMR);
+ }
+ irqs = 0;
+ irq_mask = 0;
+ sts = test_media(dev,irqs, irq_mask, 0xef09, 0xf73d, 0x0006, 1000);
+ if (sts < 0) {
+ next_tick = sts & ~TIMER_CB;
+ } else {
+ lp->local_state++; /* Ensure media connected */
+ next_tick = dc21041_autoconf(dev);
+ }
+ break;
+
+ case 1:
+ if (!lp->tx_enable) {
+ if ((sts = ping_media(dev, 3000)) < 0) {
+ next_tick = sts & ~TIMER_CB;
+ } else {
+ if (sts) {
+ lp->local_state = 0;
+ lp->media = NC;
+ } else {
+ de4x5_init_connection(dev);
+ }
+ }
+ } else if (!lp->linkOK && (lp->autosense == AUTO)) {
+ lp->media = BNC_SUSPECT;
+ next_tick = 3000;
+ }
+ break;
+ }
+ break;
+
+ case BNC_SUSPECT:
+ next_tick = de4x5_suspect_state(dev, 1000, BNC, ping_media, dc21041_autoconf);
+ break;
+
+ case NC:
+ omr = inl(DE4X5_OMR); /* Set up full duplex for the autonegotiate */
+ outl(omr | OMR_FDX, DE4X5_OMR);
+ reset_init_sia(dev, 0xef01, 0xffff, 0x0008);/* Initialise the SIA */
+ if (lp->media != lp->c_media) {
+ de4x5_dbg_media(dev);
+ lp->c_media = lp->media;
+ }
+ lp->media = INIT;
+ lp->tx_enable = NO;
+ break;
+ }
+
+ return next_tick;
+}
+
+/*
+** Some autonegotiation chips are broken in that they do not return the
+** acknowledge bit (anlpa & MII_ANLPA_ACK) in the link partner advertisement
+** register, except at the first power up negotiation.
+*/
+static int
+dc21140m_autoconf(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int ana, anlpa, cap, cr, slnk, sr;
+ int next_tick = DE4X5_AUTOSENSE_MS;
+ u_long imr, omr, iobase = dev->base_addr;
+
+ switch(lp->media) {
+ case INIT:
+ if (lp->timeout < 0) {
+ DISABLE_IRQs;
+ lp->tx_enable = FALSE;
+ lp->linkOK = 0;
+ de4x5_save_skbs(dev); /* Save non transmitted skb's */
+ }
+ if ((next_tick = de4x5_reset_phy(dev)) < 0) {
+ next_tick &= ~TIMER_CB;
+ } else {
+ if (lp->useSROM) {
+ if (srom_map_media(dev) < 0) {
+ lp->tcount++;
+ return next_tick;
+ }
+ srom_exec(dev, lp->phy[lp->active].gep);
+ if (lp->infoblock_media == ANS) {
+ ana = lp->phy[lp->active].ana | MII_ANA_CSMA;
+ mii_wr(ana, MII_ANA, lp->phy[lp->active].addr, DE4X5_MII);
+ }
+ } else {
+ lp->tmp = MII_SR_ASSC; /* Fake out the MII speed set */
+ SET_10Mb;
+ if (lp->autosense == _100Mb) {
+ lp->media = _100Mb;
+ } else if (lp->autosense == _10Mb) {
+ lp->media = _10Mb;
+ } else if ((lp->autosense == AUTO) &&
+ ((sr=is_anc_capable(dev)) & MII_SR_ANC)) {
+ ana = (((sr >> 6) & MII_ANA_TAF) | MII_ANA_CSMA);
+ ana &= (lp->fdx ? ~0 : ~MII_ANA_FDAM);
+ mii_wr(ana, MII_ANA, lp->phy[lp->active].addr, DE4X5_MII);
+ lp->media = ANS;
+ } else if (lp->autosense == AUTO) {
+ lp->media = SPD_DET;
+ } else if (is_spd_100(dev) && is_100_up(dev)) {
+ lp->media = _100Mb;
+ } else {
+ lp->media = NC;
+ }
+ }
+ lp->local_state = 0;
+ next_tick = dc21140m_autoconf(dev);
+ }
+ break;
+
+ case ANS:
+ switch (lp->local_state) {
+ case 0:
+ if (lp->timeout < 0) {
+ mii_wr(MII_CR_ASSE | MII_CR_RAN, MII_CR, lp->phy[lp->active].addr, DE4X5_MII);
+ }
+ cr = test_mii_reg(dev, MII_CR, MII_CR_RAN, FALSE, 500);
+ if (cr < 0) {
+ next_tick = cr & ~TIMER_CB;
+ } else {
+ if (cr) {
+ lp->local_state = 0;
+ lp->media = SPD_DET;
+ } else {
+ lp->local_state++;
+ }
+ next_tick = dc21140m_autoconf(dev);
+ }
+ break;
+
+ case 1:
+ if ((sr=test_mii_reg(dev, MII_SR, MII_SR_ASSC, TRUE, 2000)) < 0) {
+ next_tick = sr & ~TIMER_CB;
+ } else {
+ lp->media = SPD_DET;
+ lp->local_state = 0;
+ if (sr) { /* Success! */
+ lp->tmp = MII_SR_ASSC;
+ anlpa = mii_rd(MII_ANLPA, lp->phy[lp->active].addr, DE4X5_MII);
+ ana = mii_rd(MII_ANA, lp->phy[lp->active].addr, DE4X5_MII);
+ if (!(anlpa & MII_ANLPA_RF) &&
+ (cap = anlpa & MII_ANLPA_TAF & ana)) {
+ if (cap & MII_ANA_100M) {
+ lp->fdx = ((ana & anlpa & MII_ANA_FDAM & MII_ANA_100M) ? TRUE : FALSE);
+ lp->media = _100Mb;
+ } else if (cap & MII_ANA_10M) {
+ lp->fdx = ((ana & anlpa & MII_ANA_FDAM & MII_ANA_10M) ? TRUE : FALSE);
+
+ lp->media = _10Mb;
+ }
+ }
+ } /* Auto Negotiation failed to finish */
+ next_tick = dc21140m_autoconf(dev);
+ } /* Auto Negotiation failed to start */
+ break;
+ }
+ break;
+
+ case SPD_DET: /* Choose 10Mb/s or 100Mb/s */
+ if (lp->timeout < 0) {
+ lp->tmp = (lp->phy[lp->active].id ? MII_SR_LKS :
+ (~gep_rd(dev) & GEP_LNP));
+ SET_100Mb_PDET;
+ }
+ if ((slnk = test_for_100Mb(dev, 6500)) < 0) {
+ next_tick = slnk & ~TIMER_CB;
+ } else {
+ if (is_spd_100(dev) && is_100_up(dev)) {
+ lp->media = _100Mb;
+ } else if ((!is_spd_100(dev) && (is_10_up(dev) & lp->tmp))) {
+ lp->media = _10Mb;
+ } else {
+ lp->media = NC;
+ }
+ next_tick = dc21140m_autoconf(dev);
+ }
+ break;
+
+ case _100Mb: /* Set 100Mb/s */
+ next_tick = 3000;
+ if (!lp->tx_enable) {
+ SET_100Mb;
+ de4x5_init_connection(dev);
+ } else {
+ if (!lp->linkOK && (lp->autosense == AUTO)) {
+ if (!is_100_up(dev) || (!lp->useSROM && !is_spd_100(dev))) {
+ lp->media = INIT;
+ lp->tcount++;
+ next_tick = DE4X5_AUTOSENSE_MS;
+ }
+ }
+ }
+ break;
+
+ case BNC:
+ case AUI:
+ case _10Mb: /* Set 10Mb/s */
+ next_tick = 3000;
+ if (!lp->tx_enable) {
+ SET_10Mb;
+ de4x5_init_connection(dev);
+ } else {
+ if (!lp->linkOK && (lp->autosense == AUTO)) {
+ if (!is_10_up(dev) || (!lp->useSROM && is_spd_100(dev))) {
+ lp->media = INIT;
+ lp->tcount++;
+ next_tick = DE4X5_AUTOSENSE_MS;
+ }
+ }
+ }
+ break;
+
+ case NC:
+ if (lp->media != lp->c_media) {
+ de4x5_dbg_media(dev);
+ lp->c_media = lp->media;
+ }
+ lp->media = INIT;
+ lp->tx_enable = FALSE;
+ break;
+ }
+
+ return next_tick;
+}
+
+/*
+** This routine may be merged into dc21140m_autoconf() sometime as I'm
+** changing how I figure out the media - but trying to keep it backwards
+** compatible with the de500-xa and de500-aa.
+** Whether it's BNC, AUI, SYM or MII is sorted out in the infoblock
+** functions and set during de4x5_mac_port() and/or de4x5_reset_phy().
+** This routine just has to figure out whether 10Mb/s or 100Mb/s is
+** active.
+** When autonegotiation is working, the ANS part searches the SROM for
+** the highest common speed (TP) link that both can run and if that can
+** be full duplex. That infoblock is executed and then the link speed set.
+**
+** Only _10Mb and _100Mb are tested here.
+*/
+static int
+dc2114x_autoconf(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ s32 cr, anlpa, ana, cap, irqs, irq_mask, imr, omr, slnk, sr, sts;
+ int next_tick = DE4X5_AUTOSENSE_MS;
+
+ switch (lp->media) {
+ case INIT:
+ if (lp->timeout < 0) {
+ DISABLE_IRQs;
+ lp->tx_enable = FALSE;
+ lp->linkOK = 0;
+ lp->timeout = -1;
+ de4x5_save_skbs(dev); /* Save non transmitted skb's */
+ if (lp->params.autosense & ~AUTO) {
+ srom_map_media(dev); /* Fixed media requested */
+ if (lp->media != lp->params.autosense) {
+ lp->tcount++;
+ lp->media = INIT;
+ return next_tick;
+ }
+ lp->media = INIT;
+ }
+ }
+ if ((next_tick = de4x5_reset_phy(dev)) < 0) {
+ next_tick &= ~TIMER_CB;
+ } else {
+ if (lp->autosense == _100Mb) {
+ lp->media = _100Mb;
+ } else if (lp->autosense == _10Mb) {
+ lp->media = _10Mb;
+ } else if (lp->autosense == TP) {
+ lp->media = TP;
+ } else if (lp->autosense == BNC) {
+ lp->media = BNC;
+ } else if (lp->autosense == AUI) {
+ lp->media = AUI;
+ } else {
+ lp->media = SPD_DET;
+ if ((lp->infoblock_media == ANS) &&
+ ((sr=is_anc_capable(dev)) & MII_SR_ANC)) {
+ ana = (((sr >> 6) & MII_ANA_TAF) | MII_ANA_CSMA);
+ ana &= (lp->fdx ? ~0 : ~MII_ANA_FDAM);
+ mii_wr(ana, MII_ANA, lp->phy[lp->active].addr, DE4X5_MII);
+ lp->media = ANS;
+ }
+ }
+ lp->local_state = 0;
+ next_tick = dc2114x_autoconf(dev);
+ }
+ break;
+
+ case ANS:
+ switch (lp->local_state) {
+ case 0:
+ if (lp->timeout < 0) {
+ mii_wr(MII_CR_ASSE | MII_CR_RAN, MII_CR, lp->phy[lp->active].addr, DE4X5_MII);
+ }
+ cr = test_mii_reg(dev, MII_CR, MII_CR_RAN, FALSE, 500);
+ if (cr < 0) {
+ next_tick = cr & ~TIMER_CB;
+ } else {
+ if (cr) {
+ lp->local_state = 0;
+ lp->media = SPD_DET;
+ } else {
+ lp->local_state++;
+ }
+ next_tick = dc2114x_autoconf(dev);
+ }
+ break;
+
+ case 1:
+ if ((sr=test_mii_reg(dev, MII_SR, MII_SR_ASSC, TRUE, 2000)) < 0) {
+ next_tick = sr & ~TIMER_CB;
+ } else {
+ lp->media = SPD_DET;
+ lp->local_state = 0;
+ if (sr) { /* Success! */
+ lp->tmp = MII_SR_ASSC;
+ anlpa = mii_rd(MII_ANLPA, lp->phy[lp->active].addr, DE4X5_MII);
+ ana = mii_rd(MII_ANA, lp->phy[lp->active].addr, DE4X5_MII);
+ if (!(anlpa & MII_ANLPA_RF) &&
+ (cap = anlpa & MII_ANLPA_TAF & ana)) {
+ if (cap & MII_ANA_100M) {
+ lp->fdx = ((ana & anlpa & MII_ANA_FDAM & MII_ANA_100M) ? TRUE : FALSE);
+ lp->media = _100Mb;
+ } else if (cap & MII_ANA_10M) {
+ lp->fdx = ((ana & anlpa & MII_ANA_FDAM & MII_ANA_10M) ? TRUE : FALSE);
+ lp->media = _10Mb;
+ }
+ }
+ } /* Auto Negotiation failed to finish */
+ next_tick = dc2114x_autoconf(dev);
+ } /* Auto Negotiation failed to start */
+ break;
+ }
+ break;
+
+ case AUI:
+ if (!lp->tx_enable) {
+ if (lp->timeout < 0) {
+ omr = inl(DE4X5_OMR); /* Set up half duplex for AUI */
+ outl(omr & ~OMR_FDX, DE4X5_OMR);
+ }
+ irqs = 0;
+ irq_mask = 0;
+ sts = test_media(dev,irqs, irq_mask, 0, 0, 0, 1000);
+ if (sts < 0) {
+ next_tick = sts & ~TIMER_CB;
+ } else {
+ if (!(inl(DE4X5_SISR) & SISR_SRA) && (lp->autosense == AUTO)) {
+ lp->media = BNC;
+ next_tick = dc2114x_autoconf(dev);
+ } else {
+ lp->local_state = 1;
+ de4x5_init_connection(dev);
+ }
+ }
+ } else if (!lp->linkOK && (lp->autosense == AUTO)) {
+ lp->media = AUI_SUSPECT;
+ next_tick = 3000;
+ }
+ break;
+
+ case AUI_SUSPECT:
+ next_tick = de4x5_suspect_state(dev, 1000, AUI, ping_media, dc2114x_autoconf);
+ break;
+
+ case BNC:
+ switch (lp->local_state) {
+ case 0:
+ if (lp->timeout < 0) {
+ omr = inl(DE4X5_OMR); /* Set up half duplex for BNC */
+ outl(omr & ~OMR_FDX, DE4X5_OMR);
+ }
+ irqs = 0;
+ irq_mask = 0;
+ sts = test_media(dev,irqs, irq_mask, 0, 0, 0, 1000);
+ if (sts < 0) {
+ next_tick = sts & ~TIMER_CB;
+ } else {
+ lp->local_state++; /* Ensure media connected */
+ next_tick = dc2114x_autoconf(dev);
+ }
+ break;
+
+ case 1:
+ if (!lp->tx_enable) {
+ if ((sts = ping_media(dev, 3000)) < 0) {
+ next_tick = sts & ~TIMER_CB;
+ } else {
+ if (sts) {
+ lp->local_state = 0;
+ lp->tcount++;
+ lp->media = INIT;
+ } else {
+ de4x5_init_connection(dev);
+ }
+ }
+ } else if (!lp->linkOK && (lp->autosense == AUTO)) {
+ lp->media = BNC_SUSPECT;
+ next_tick = 3000;
+ }
+ break;
+ }
+ break;
+
+ case BNC_SUSPECT:
+ next_tick = de4x5_suspect_state(dev, 1000, BNC, ping_media, dc2114x_autoconf);
+ break;
+
+ case SPD_DET: /* Choose 10Mb/s or 100Mb/s */
+ if (srom_map_media(dev) < 0) {
+ lp->tcount++;
+ lp->media = INIT;
+ return next_tick;
+ }
+ if (lp->media == _100Mb) {
+ if ((slnk = test_for_100Mb(dev, 6500)) < 0) {
+ lp->media = SPD_DET;
+ return (slnk & ~TIMER_CB);
+ }
+ } else {
+ if (wait_for_link(dev) < 0) {
+ lp->media = SPD_DET;
+ return PDET_LINK_WAIT;
+ }
+ }
+ if (lp->media == ANS) { /* Do MII parallel detection */
+ if (is_spd_100(dev)) {
+ lp->media = _100Mb;
+ } else {
+ lp->media = _10Mb;
+ }
+ next_tick = dc2114x_autoconf(dev);
+ } else if (((lp->media == _100Mb) && is_100_up(dev)) ||
+ (((lp->media == _10Mb) || (lp->media == TP) ||
+ (lp->media == BNC) || (lp->media == AUI)) &&
+ is_10_up(dev))) {
+ next_tick = dc2114x_autoconf(dev);
+ } else {
+ lp->tcount++;
+ lp->media = INIT;
+ }
+ break;
+
+ case _10Mb:
+ next_tick = 3000;
+ if (!lp->tx_enable) {
+ SET_10Mb;
+ de4x5_init_connection(dev);
+ } else {
+ if (!lp->linkOK && (lp->autosense == AUTO)) {
+ if (!is_10_up(dev) || (!lp->useSROM && is_spd_100(dev))) {
+ lp->media = INIT;
+ lp->tcount++;
+ next_tick = DE4X5_AUTOSENSE_MS;
+ }
+ }
+ }
+ break;
+
+ case _100Mb:
+ next_tick = 3000;
+ if (!lp->tx_enable) {
+ SET_100Mb;
+ de4x5_init_connection(dev);
+ } else {
+ if (!lp->linkOK && (lp->autosense == AUTO)) {
+ if (!is_100_up(dev) || (!lp->useSROM && !is_spd_100(dev))) {
+ lp->media = INIT;
+ lp->tcount++;
+ next_tick = DE4X5_AUTOSENSE_MS;
+ }
+ }
+ }
+ break;
+
+ default:
+ lp->tcount++;
+printk("Huh?: media:%02x\n", lp->media);
+ lp->media = INIT;
+ break;
+ }
+
+ return next_tick;
+}
+
+static int
+srom_autoconf(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+
+ return lp->infoleaf_fn(dev);
+}
+
+/*
+** This mapping keeps the original media codes and FDX flag unchanged.
+** While it isn't strictly necessary, it helps me for the moment...
+** The early return avoids a media state / SROM media space clash.
+*/
+static int
+srom_map_media(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+
+ lp->fdx = 0;
+ if (lp->infoblock_media == lp->media)
+ return 0;
+
+ switch(lp->infoblock_media) {
+ case SROM_10BASETF:
+ if (!lp->params.fdx) return -1;
+ lp->fdx = TRUE;
+ case SROM_10BASET:
+ if (lp->params.fdx && !lp->fdx) return -1;
+ if ((lp->chipset == DC21140) || ((lp->chipset & ~0x00ff) == DC2114x)) {
+ lp->media = _10Mb;
+ } else {
+ lp->media = TP;
+ }
+ break;
+
+ case SROM_10BASE2:
+ lp->media = BNC;
+ break;
+
+ case SROM_10BASE5:
+ lp->media = AUI;
+ break;
+
+ case SROM_100BASETF:
+ if (!lp->params.fdx) return -1;
+ lp->fdx = TRUE;
+ case SROM_100BASET:
+ if (lp->params.fdx && !lp->fdx) return -1;
+ lp->media = _100Mb;
+ break;
+
+ case SROM_100BASET4:
+ lp->media = _100Mb;
+ break;
+
+ case SROM_100BASEFF:
+ if (!lp->params.fdx) return -1;
+ lp->fdx = TRUE;
+ case SROM_100BASEF:
+ if (lp->params.fdx && !lp->fdx) return -1;
+ lp->media = _100Mb;
+ break;
+
+ case ANS:
+ lp->media = ANS;
+ lp->fdx = lp->params.fdx;
+ break;
+
+ default:
+ printk("%s: Bad media code [%d] detected in SROM!\n", dev->name,
+ lp->infoblock_media);
+ return -1;
+ break;
+ }
+
+ return 0;
+}
+
+static void
+de4x5_init_connection(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ u_long flags = 0;
+
+ if (lp->media != lp->c_media) {
+ de4x5_dbg_media(dev);
+ lp->c_media = lp->media; /* Stop scrolling media messages */
+ }
+
+ spin_lock_irqsave(&lp->lock, flags);
+ de4x5_rst_desc_ring(dev);
+ de4x5_setup_intr(dev);
+ lp->tx_enable = YES;
+ spin_unlock_irqrestore(&lp->lock, flags);
+ outl(POLL_DEMAND, DE4X5_TPD);
+
+ netif_wake_queue(dev);
+
+ return;
+}
+
+/*
+** General PHY reset function. Some MII devices don't reset correctly
+** since their MII address pins can float at voltages that are dependent
+** on the signal pin use. Do a double reset to ensure a reset.
+*/
+static int
+de4x5_reset_phy(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int next_tick = 0;
+
+ if ((lp->useSROM) || (lp->phy[lp->active].id)) {
+ if (lp->timeout < 0) {
+ if (lp->useSROM) {
+ if (lp->phy[lp->active].rst) {
+ srom_exec(dev, lp->phy[lp->active].rst);
+ srom_exec(dev, lp->phy[lp->active].rst);
+ } else if (lp->rst) { /* Type 5 infoblock reset */
+ srom_exec(dev, lp->rst);
+ srom_exec(dev, lp->rst);
+ }
+ } else {
+ PHY_HARD_RESET;
+ }
+ if (lp->useMII) {
+ mii_wr(MII_CR_RST, MII_CR, lp->phy[lp->active].addr, DE4X5_MII);
+ }
+ }
+ if (lp->useMII) {
+ next_tick = test_mii_reg(dev, MII_CR, MII_CR_RST, FALSE, 500);
+ }
+ } else if (lp->chipset == DC21140) {
+ PHY_HARD_RESET;
+ }
+
+ return next_tick;
+}
+
+static int
+test_media(struct net_device *dev, s32 irqs, s32 irq_mask, s32 csr13, s32 csr14, s32 csr15, s32 msec)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ s32 sts, csr12;
+
+ if (lp->timeout < 0) {
+ lp->timeout = msec/100;
+ if (!lp->useSROM) { /* Already done if by SROM, else dc2104[01] */
+ reset_init_sia(dev, csr13, csr14, csr15);
+ }
+
+ /* set up the interrupt mask */
+ outl(irq_mask, DE4X5_IMR);
+
+ /* clear all pending interrupts */
+ sts = inl(DE4X5_STS);
+ outl(sts, DE4X5_STS);
+
+ /* clear csr12 NRA and SRA bits */
+ if ((lp->chipset == DC21041) || lp->useSROM) {
+ csr12 = inl(DE4X5_SISR);
+ outl(csr12, DE4X5_SISR);
+ }
+ }
+
+ sts = inl(DE4X5_STS) & ~TIMER_CB;
+
+ if (!(sts & irqs) && --lp->timeout) {
+ sts = 100 | TIMER_CB;
+ } else {
+ lp->timeout = -1;
+ }
+
+ return sts;
+}
+
+static int
+test_tp(struct net_device *dev, s32 msec)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int sisr;
+
+ if (lp->timeout < 0) {
+ lp->timeout = msec/100;
+ }
+
+ sisr = (inl(DE4X5_SISR) & ~TIMER_CB) & (SISR_LKF | SISR_NCR);
+
+ if (sisr && --lp->timeout) {
+ sisr = 100 | TIMER_CB;
+ } else {
+ lp->timeout = -1;
+ }
+
+ return sisr;
+}
+
+/*
+** Samples the 100Mb Link State Signal. The sample interval is important
+** because too fast a rate can give erroneous results and confuse the
+** speed sense algorithm.
+*/
+#define SAMPLE_INTERVAL 500 /* ms */
+#define SAMPLE_DELAY 2000 /* ms */
+static int
+test_for_100Mb(struct net_device *dev, int msec)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int gep = 0, ret = ((lp->chipset & ~0x00ff)==DC2114x? -1 :GEP_SLNK);
+
+ if (lp->timeout < 0) {
+ if ((msec/SAMPLE_INTERVAL) <= 0) return 0;
+ if (msec > SAMPLE_DELAY) {
+ lp->timeout = (msec - SAMPLE_DELAY)/SAMPLE_INTERVAL;
+ gep = SAMPLE_DELAY | TIMER_CB;
+ return gep;
+ } else {
+ lp->timeout = msec/SAMPLE_INTERVAL;
+ }
+ }
+
+ if (lp->phy[lp->active].id || lp->useSROM) {
+ gep = is_100_up(dev) | is_spd_100(dev);
+ } else {
+ gep = (~gep_rd(dev) & (GEP_SLNK | GEP_LNP));
+ }
+ if (!(gep & ret) && --lp->timeout) {
+ gep = SAMPLE_INTERVAL | TIMER_CB;
+ } else {
+ lp->timeout = -1;
+ }
+
+ return gep;
+}
+
+static int
+wait_for_link(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+
+ if (lp->timeout < 0) {
+ lp->timeout = 1;
+ }
+
+ if (lp->timeout--) {
+ return TIMER_CB;
+ } else {
+ lp->timeout = -1;
+ }
+
+ return 0;
+}
+
+/*
+**
+**
+*/
+static int
+test_mii_reg(struct net_device *dev, int reg, int mask, int pol, long msec)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int test;
+ u_long iobase = dev->base_addr;
+
+ if (lp->timeout < 0) {
+ lp->timeout = msec/100;
+ }
+
+ if (pol) pol = ~0;
+ reg = mii_rd((u_char)reg, lp->phy[lp->active].addr, DE4X5_MII) & mask;
+ test = (reg ^ pol) & mask;
+
+ if (test && --lp->timeout) {
+ reg = 100 | TIMER_CB;
+ } else {
+ lp->timeout = -1;
+ }
+
+ return reg;
+}
+
+static int
+is_spd_100(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int spd;
+
+ if (lp->useMII) {
+ spd = mii_rd(lp->phy[lp->active].spd.reg, lp->phy[lp->active].addr, DE4X5_MII);
+ spd = ~(spd ^ lp->phy[lp->active].spd.value);
+ spd &= lp->phy[lp->active].spd.mask;
+ } else if (!lp->useSROM) { /* de500-xa */
+ spd = ((~gep_rd(dev)) & GEP_SLNK);
+ } else {
+ if ((lp->ibn == 2) || !lp->asBitValid)
+ return ((lp->chipset == DC21143)?(~inl(DE4X5_SISR)&SISR_LS100):0);
+
+ spd = (lp->asBitValid & (lp->asPolarity ^ (gep_rd(dev) & lp->asBit))) |
+ (lp->linkOK & ~lp->asBitValid);
+ }
+
+ return spd;
+}
+
+static int
+is_100_up(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+
+ if (lp->useMII) {
+ /* Double read for sticky bits & temporary drops */
+ mii_rd(MII_SR, lp->phy[lp->active].addr, DE4X5_MII);
+ return (mii_rd(MII_SR, lp->phy[lp->active].addr, DE4X5_MII) & MII_SR_LKS);
+ } else if (!lp->useSROM) { /* de500-xa */
+ return ((~gep_rd(dev)) & GEP_SLNK);
+ } else {
+ if ((lp->ibn == 2) || !lp->asBitValid)
+ return ((lp->chipset == DC21143)?(~inl(DE4X5_SISR)&SISR_LS100):0);
+
+ return ((lp->asBitValid&(lp->asPolarity^(gep_rd(dev)&lp->asBit))) |
+ (lp->linkOK & ~lp->asBitValid));
+ }
+}
+
+static int
+is_10_up(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+
+ if (lp->useMII) {
+ /* Double read for sticky bits & temporary drops */
+ mii_rd(MII_SR, lp->phy[lp->active].addr, DE4X5_MII);
+ return (mii_rd(MII_SR, lp->phy[lp->active].addr, DE4X5_MII) & MII_SR_LKS);
+ } else if (!lp->useSROM) { /* de500-xa */
+ return ((~gep_rd(dev)) & GEP_LNP);
+ } else {
+ if ((lp->ibn == 2) || !lp->asBitValid)
+ return (((lp->chipset & ~0x00ff) == DC2114x) ?
+ (~inl(DE4X5_SISR)&SISR_LS10):
+ 0);
+
+ return ((lp->asBitValid&(lp->asPolarity^(gep_rd(dev)&lp->asBit))) |
+ (lp->linkOK & ~lp->asBitValid));
+ }
+}
+
+static int
+is_anc_capable(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+
+ if (lp->phy[lp->active].id && (!lp->useSROM || lp->useMII)) {
+ return (mii_rd(MII_SR, lp->phy[lp->active].addr, DE4X5_MII));
+ } else if ((lp->chipset & ~0x00ff) == DC2114x) {
+ return (inl(DE4X5_SISR) & SISR_LPN) >> 12;
+ } else {
+ return 0;
+ }
+}
+
+/*
+** Send a packet onto the media and watch for send errors that indicate the
+** media is bad or unconnected.
+*/
+static int
+ping_media(struct net_device *dev, int msec)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int sisr;
+
+ if (lp->timeout < 0) {
+ lp->timeout = msec/100;
+
+ lp->tmp = lp->tx_new; /* Remember the ring position */
+ load_packet(dev, lp->frame, TD_LS | TD_FS | sizeof(lp->frame), (struct sk_buff *)1);
+ lp->tx_new = (++lp->tx_new) % lp->txRingSize;
+ outl(POLL_DEMAND, DE4X5_TPD);
+ }
+
+ sisr = inl(DE4X5_SISR);
+
+ if ((!(sisr & SISR_NCR)) &&
+ ((s32)le32_to_cpu(lp->tx_ring[lp->tmp].status) < 0) &&
+ (--lp->timeout)) {
+ sisr = 100 | TIMER_CB;
+ } else {
+ if ((!(sisr & SISR_NCR)) &&
+ !(le32_to_cpu(lp->tx_ring[lp->tmp].status) & (T_OWN | TD_ES)) &&
+ lp->timeout) {
+ sisr = 0;
+ } else {
+ sisr = 1;
+ }
+ lp->timeout = -1;
+ }
+
+ return sisr;
+}
+
+/*
+** This function does 2 things: on Intels it kmalloc's another buffer to
+** replace the one about to be passed up. On Alpha's it kmallocs a buffer
+** into which the packet is copied.
+*/
+static struct sk_buff *
+de4x5_alloc_rx_buff(struct net_device *dev, int index, int len)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ struct sk_buff *p;
+
+#if !defined(__alpha__) && !defined(__powerpc__) && !defined(__sparc_v9__) && !defined(DE4X5_DO_MEMCPY)
+ struct sk_buff *ret;
+ u_long i=0, tmp;
+
+ p = dev_alloc_skb(IEEE802_3_SZ + DE4X5_ALIGN + 2);
+ if (!p) return NULL;
+
+ p->dev = dev;
+ tmp = virt_to_bus(p->data);
+ i = ((tmp + DE4X5_ALIGN) & ~DE4X5_ALIGN) - tmp;
+ skb_reserve(p, i);
+ lp->rx_ring[index].buf = cpu_to_le32(tmp + i);
+
+ ret = lp->rx_skb[index];
+ lp->rx_skb[index] = p;
+
+ if ((u_long) ret > 1) {
+ skb_put(ret, len);
+ }
+
+ return ret;
+
+#else
+ if (lp->state != OPEN) return (struct sk_buff *)1; /* Fake out the open */
+
+ p = dev_alloc_skb(len + 2);
+ if (!p) return NULL;
+
+ p->dev = dev;
+ skb_reserve(p, 2); /* Align */
+ if (index < lp->rx_old) { /* Wrapped buffer */
+ short tlen = (lp->rxRingSize - lp->rx_old) * RX_BUFF_SZ;
+ memcpy(skb_put(p,tlen),lp->rx_bufs + lp->rx_old * RX_BUFF_SZ,tlen);
+ memcpy(skb_put(p,len-tlen),lp->rx_bufs,len-tlen);
+ } else { /* Linear buffer */
+ memcpy(skb_put(p,len),lp->rx_bufs + lp->rx_old * RX_BUFF_SZ,len);
+ }
+
+ return p;
+#endif
+}
+
+static void
+de4x5_free_rx_buffs(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int i;
+
+ for (i=0; i<lp->rxRingSize; i++) {
+ if ((u_long) lp->rx_skb[i] > 1) {
+ dev_kfree_skb(lp->rx_skb[i]);
+ }
+ lp->rx_ring[i].status = 0;
+ lp->rx_skb[i] = (struct sk_buff *)1; /* Dummy entry */
+ }
+
+ return;
+}
+
+static void
+de4x5_free_tx_buffs(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int i;
+
+ for (i=0; i<lp->txRingSize; i++) {
+ if (lp->tx_skb[i])
+ de4x5_free_tx_buff(lp, i);
+ lp->tx_ring[i].status = 0;
+ }
+
+ /* Unload the locally queued packets */
+ while (lp->cache.skb) {
+ dev_kfree_skb(de4x5_get_cache(dev));
+ }
+
+ return;
+}
+
+/*
+** When a user pulls a connection, the DECchip can end up in a
+** 'running - waiting for end of transmission' state. This means that we
+** have to perform a chip soft reset to ensure that we can synchronize
+** the hardware and software and make any media probes using a loopback
+** packet meaningful.
+*/
+static void
+de4x5_save_skbs(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ s32 omr;
+
+ if (!lp->cache.save_cnt) {
+ STOP_DE4X5;
+ de4x5_tx(dev); /* Flush any sent skb's */
+ de4x5_free_tx_buffs(dev);
+ de4x5_cache_state(dev, DE4X5_SAVE_STATE);
+ de4x5_sw_reset(dev);
+ de4x5_cache_state(dev, DE4X5_RESTORE_STATE);
+ lp->cache.save_cnt++;
+ START_DE4X5;
+ }
+
+ return;
+}
+
+static void
+de4x5_rst_desc_ring(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int i;
+ s32 omr;
+
+ if (lp->cache.save_cnt) {
+ STOP_DE4X5;
+ outl(lp->dma_rings, DE4X5_RRBA);
+ outl(lp->dma_rings + NUM_RX_DESC * sizeof(struct de4x5_desc),
+ DE4X5_TRBA);
+
+ lp->rx_new = lp->rx_old = 0;
+ lp->tx_new = lp->tx_old = 0;
+
+ for (i = 0; i < lp->rxRingSize; i++) {
+ lp->rx_ring[i].status = cpu_to_le32(R_OWN);
+ }
+
+ for (i = 0; i < lp->txRingSize; i++) {
+ lp->tx_ring[i].status = cpu_to_le32(0);
+ }
+
+ barrier();
+ lp->cache.save_cnt--;
+ START_DE4X5;
+ }
+
+ return;
+}
+
+static void
+de4x5_cache_state(struct net_device *dev, int flag)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+
+ switch(flag) {
+ case DE4X5_SAVE_STATE:
+ lp->cache.csr0 = inl(DE4X5_BMR);
+ lp->cache.csr6 = (inl(DE4X5_OMR) & ~(OMR_ST | OMR_SR));
+ lp->cache.csr7 = inl(DE4X5_IMR);
+ break;
+
+ case DE4X5_RESTORE_STATE:
+ outl(lp->cache.csr0, DE4X5_BMR);
+ outl(lp->cache.csr6, DE4X5_OMR);
+ outl(lp->cache.csr7, DE4X5_IMR);
+ if (lp->chipset == DC21140) {
+ gep_wr(lp->cache.gepc, dev);
+ gep_wr(lp->cache.gep, dev);
+ } else {
+ reset_init_sia(dev, lp->cache.csr13, lp->cache.csr14,
+ lp->cache.csr15);
+ }
+ break;
+ }
+
+ return;
+}
+
+static void
+de4x5_put_cache(struct net_device *dev, struct sk_buff *skb)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ struct sk_buff *p;
+
+ if (lp->cache.skb) {
+ for (p=lp->cache.skb; p->next; p=p->next);
+ p->next = skb;
+ } else {
+ lp->cache.skb = skb;
+ }
+ skb->next = NULL;
+
+ return;
+}
+
+static void
+de4x5_putb_cache(struct net_device *dev, struct sk_buff *skb)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ struct sk_buff *p = lp->cache.skb;
+
+ lp->cache.skb = skb;
+ skb->next = p;
+
+ return;
+}
+
+static struct sk_buff *
+de4x5_get_cache(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ struct sk_buff *p = lp->cache.skb;
+
+ if (p) {
+ lp->cache.skb = p->next;
+ p->next = NULL;
+ }
+
+ return p;
+}
+
+/*
+** Check the Auto Negotiation State. Return OK when a link pass interrupt
+** is received and the auto-negotiation status is NWAY OK.
+*/
+static int
+test_ans(struct net_device *dev, s32 irqs, s32 irq_mask, s32 msec)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ s32 sts, ans;
+
+ if (lp->timeout < 0) {
+ lp->timeout = msec/100;
+ outl(irq_mask, DE4X5_IMR);
+
+ /* clear all pending interrupts */
+ sts = inl(DE4X5_STS);
+ outl(sts, DE4X5_STS);
+ }
+
+ ans = inl(DE4X5_SISR) & SISR_ANS;
+ sts = inl(DE4X5_STS) & ~TIMER_CB;
+
+ if (!(sts & irqs) && (ans ^ ANS_NWOK) && --lp->timeout) {
+ sts = 100 | TIMER_CB;
+ } else {
+ lp->timeout = -1;
+ }
+
+ return sts;
+}
+
+static void
+de4x5_setup_intr(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ s32 imr, sts;
+
+ if (inl(DE4X5_OMR) & OMR_SR) { /* Only unmask if TX/RX is enabled */
+ imr = 0;
+ UNMASK_IRQs;
+ sts = inl(DE4X5_STS); /* Reset any pending (stale) interrupts */
+ outl(sts, DE4X5_STS);
+ ENABLE_IRQs;
+ }
+
+ return;
+}
+
+/*
+**
+*/
+static void
+reset_init_sia(struct net_device *dev, s32 csr13, s32 csr14, s32 csr15)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+
+ RESET_SIA;
+ if (lp->useSROM) {
+ if (lp->ibn == 3) {
+ srom_exec(dev, lp->phy[lp->active].rst);
+ srom_exec(dev, lp->phy[lp->active].gep);
+ outl(1, DE4X5_SICR);
+ return;
+ } else {
+ csr15 = lp->cache.csr15;
+ csr14 = lp->cache.csr14;
+ csr13 = lp->cache.csr13;
+ outl(csr15 | lp->cache.gepc, DE4X5_SIGR);
+ outl(csr15 | lp->cache.gep, DE4X5_SIGR);
+ }
+ } else {
+ outl(csr15, DE4X5_SIGR);
+ }
+ outl(csr14, DE4X5_STRR);
+ outl(csr13, DE4X5_SICR);
+
+ mdelay(10);
+
+ return;
+}
+
+/*
+** Create a loopback ethernet packet
+*/
+static void
+create_packet(struct net_device *dev, char *frame, int len)
+{
+ int i;
+ char *buf = frame;
+
+ for (i=0; i<ETH_ALEN; i++) { /* Use this source address */
+ *buf++ = dev->dev_addr[i];
+ }
+ for (i=0; i<ETH_ALEN; i++) { /* Use this destination address */
+ *buf++ = dev->dev_addr[i];
+ }
+
+ *buf++ = 0; /* Packet length (2 bytes) */
+ *buf++ = 1;
+
+ return;
+}
+
+/*
+** Look for a particular board name in the EISA configuration space
+*/
+static int
+EISA_signature(char *name, struct device *device)
+{
+ int i, status = 0, siglen = sizeof(de4x5_signatures)/sizeof(c_char *);
+ struct eisa_device *edev;
+
+ *name = '\0';
+ edev = to_eisa_device (device);
+ i = edev->id.driver_data;
+
+ if (i >= 0 && i < siglen) {
+ strcpy (name, de4x5_signatures[i]);
+ status = 1;
+ }
+
+ return status; /* return the device name string */
+}
+
+/*
+** Look for a particular board name in the PCI configuration space
+*/
+static int
+PCI_signature(char *name, struct de4x5_private *lp)
+{
+ int i, status = 0, siglen = sizeof(de4x5_signatures)/sizeof(c_char *);
+
+ if (lp->chipset == DC21040) {
+ strcpy(name, "DE434/5");
+ return status;
+ } else { /* Search for a DEC name in the SROM */
+ int i = *((char *)&lp->srom + 19) * 3;
+ strncpy(name, (char *)&lp->srom + 26 + i, 8);
+ }
+ name[8] = '\0';
+ for (i=0; i<siglen; i++) {
+ if (strstr(name,de4x5_signatures[i])!=NULL) break;
+ }
+ if (i == siglen) {
+ if (dec_only) {
+ *name = '\0';
+ } else { /* Use chip name to avoid confusion */
+ strcpy(name, (((lp->chipset == DC21040) ? "DC21040" :
+ ((lp->chipset == DC21041) ? "DC21041" :
+ ((lp->chipset == DC21140) ? "DC21140" :
+ ((lp->chipset == DC21142) ? "DC21142" :
+ ((lp->chipset == DC21143) ? "DC21143" : "UNKNOWN"
+ )))))));
+ }
+ if (lp->chipset != DC21041) {
+ lp->useSROM = TRUE; /* card is not recognisably DEC */
+ }
+ } else if ((lp->chipset & ~0x00ff) == DC2114x) {
+ lp->useSROM = TRUE;
+ }
+
+ return status;
+}
+
+/*
+** Set up the Ethernet PROM counter to the start of the Ethernet address on
+** the DC21040, else read the SROM for the other chips.
+** The SROM may not be present in a multi-MAC card, so first read the
+** MAC address and check for a bad address. If there is a bad one then exit
+** immediately with the prior srom contents intact (the h/w address will
+** be fixed up later).
+*/
+static void
+DevicePresent(struct net_device *dev, u_long aprom_addr)
+{
+ int i, j=0;
+ struct de4x5_private *lp = netdev_priv(dev);
+
+ if (lp->chipset == DC21040) {
+ if (lp->bus == EISA) {
+ enet_addr_rst(aprom_addr); /* Reset Ethernet Address ROM Pointer */
+ } else {
+ outl(0, aprom_addr); /* Reset Ethernet Address ROM Pointer */
+ }
+ } else { /* Read new srom */
+ u_short tmp, *p = (short *)((char *)&lp->srom + SROM_HWADD);
+ for (i=0; i<(ETH_ALEN>>1); i++) {
+ tmp = srom_rd(aprom_addr, (SROM_HWADD>>1) + i);
+ *p = le16_to_cpu(tmp);
+ j += *p++;
+ }
+ if ((j == 0) || (j == 0x2fffd)) {
+ return;
+ }
+
+ p=(short *)&lp->srom;
+ for (i=0; i<(sizeof(struct de4x5_srom)>>1); i++) {
+ tmp = srom_rd(aprom_addr, i);
+ *p++ = le16_to_cpu(tmp);
+ }
+ de4x5_dbg_srom((struct de4x5_srom *)&lp->srom);
+ }
+
+ return;
+}
+
+/*
+** Since the write on the Enet PROM register doesn't seem to reset the PROM
+** pointer correctly (at least on my DE425 EISA card), this routine should do
+** it...from depca.c.
+*/
+static void
+enet_addr_rst(u_long aprom_addr)
+{
+ union {
+ struct {
+ u32 a;
+ u32 b;
+ } llsig;
+ char Sig[sizeof(u32) << 1];
+ } dev;
+ short sigLength=0;
+ s8 data;
+ int i, j;
+
+ dev.llsig.a = ETH_PROM_SIG;
+ dev.llsig.b = ETH_PROM_SIG;
+ sigLength = sizeof(u32) << 1;
+
+ for (i=0,j=0;j<sigLength && i<PROBE_LENGTH+sigLength-1;i++) {
+ data = inb(aprom_addr);
+ if (dev.Sig[j] == data) { /* track signature */
+ j++;
+ } else { /* lost signature; begin search again */
+ if (data == dev.Sig[0]) { /* rare case.... */
+ j=1;
+ } else {
+ j=0;
+ }
+ }
+ }
+
+ return;
+}
+
+/*
+** For the bad status case and no SROM, then add one to the previous
+** address. However, need to add one backwards in case we have 0xff
+** as one or more of the bytes. Only the last 3 bytes should be checked
+** as the first three are invariant - assigned to an organisation.
+*/
+static int
+get_hw_addr(struct net_device *dev)
+{
+ u_long iobase = dev->base_addr;
+ int broken, i, k, tmp, status = 0;
+ u_short j,chksum;
+ struct de4x5_private *lp = netdev_priv(dev);
+
+ broken = de4x5_bad_srom(lp);
+
+ for (i=0,k=0,j=0;j<3;j++) {
+ k <<= 1;
+ if (k > 0xffff) k-=0xffff;
+
+ if (lp->bus == PCI) {
+ if (lp->chipset == DC21040) {
+ while ((tmp = inl(DE4X5_APROM)) < 0);
+ k += (u_char) tmp;
+ dev->dev_addr[i++] = (u_char) tmp;
+ while ((tmp = inl(DE4X5_APROM)) < 0);
+ k += (u_short) (tmp << 8);
+ dev->dev_addr[i++] = (u_char) tmp;
+ } else if (!broken) {
+ dev->dev_addr[i] = (u_char) lp->srom.ieee_addr[i]; i++;
+ dev->dev_addr[i] = (u_char) lp->srom.ieee_addr[i]; i++;
+ } else if ((broken == SMC) || (broken == ACCTON)) {
+ dev->dev_addr[i] = *((u_char *)&lp->srom + i); i++;
+ dev->dev_addr[i] = *((u_char *)&lp->srom + i); i++;
+ }
+ } else {
+ k += (u_char) (tmp = inb(EISA_APROM));
+ dev->dev_addr[i++] = (u_char) tmp;
+ k += (u_short) ((tmp = inb(EISA_APROM)) << 8);
+ dev->dev_addr[i++] = (u_char) tmp;
+ }
+
+ if (k > 0xffff) k-=0xffff;
+ }
+ if (k == 0xffff) k=0;
+
+ if (lp->bus == PCI) {
+ if (lp->chipset == DC21040) {
+ while ((tmp = inl(DE4X5_APROM)) < 0);
+ chksum = (u_char) tmp;
+ while ((tmp = inl(DE4X5_APROM)) < 0);
+ chksum |= (u_short) (tmp << 8);
+ if ((k != chksum) && (dec_only)) status = -1;
+ }
+ } else {
+ chksum = (u_char) inb(EISA_APROM);
+ chksum |= (u_short) (inb(EISA_APROM) << 8);
+ if ((k != chksum) && (dec_only)) status = -1;
+ }
+
+ /* If possible, try to fix a broken card - SMC only so far */
+ srom_repair(dev, broken);
+
+#ifdef CONFIG_PPC_MULTIPLATFORM
+ /*
+ ** If the address starts with 00 a0, we have to bit-reverse
+ ** each byte of the address.
+ */
+ if ( (_machine & _MACH_Pmac) &&
+ (dev->dev_addr[0] == 0) &&
+ (dev->dev_addr[1] == 0xa0) )
+ {
+ for (i = 0; i < ETH_ALEN; ++i)
+ {
+ int x = dev->dev_addr[i];
+ x = ((x & 0xf) << 4) + ((x & 0xf0) >> 4);
+ x = ((x & 0x33) << 2) + ((x & 0xcc) >> 2);
+ dev->dev_addr[i] = ((x & 0x55) << 1) + ((x & 0xaa) >> 1);
+ }
+ }
+#endif /* CONFIG_PPC_MULTIPLATFORM */
+
+ /* Test for a bad enet address */
+ status = test_bad_enet(dev, status);
+
+ return status;
+}
+
+/*
+** Test for enet addresses in the first 32 bytes. The built-in strncmp
+** didn't seem to work here...?
+*/
+static int
+de4x5_bad_srom(struct de4x5_private *lp)
+{
+ int i, status = 0;
+
+ for (i=0; i<sizeof(enet_det)/ETH_ALEN; i++) {
+ if (!de4x5_strncmp((char *)&lp->srom, (char *)&enet_det[i], 3) &&
+ !de4x5_strncmp((char *)&lp->srom+0x10, (char *)&enet_det[i], 3)) {
+ if (i == 0) {
+ status = SMC;
+ } else if (i == 1) {
+ status = ACCTON;
+ }
+ break;
+ }
+ }
+
+ return status;
+}
+
+static int
+de4x5_strncmp(char *a, char *b, int n)
+{
+ int ret=0;
+
+ for (;n && !ret;n--) {
+ ret = *a++ - *b++;
+ }
+
+ return ret;
+}
+
+static void
+srom_repair(struct net_device *dev, int card)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+
+ switch(card) {
+ case SMC:
+ memset((char *)&lp->srom, 0, sizeof(struct de4x5_srom));
+ memcpy(lp->srom.ieee_addr, (char *)dev->dev_addr, ETH_ALEN);
+ memcpy(lp->srom.info, (char *)&srom_repair_info[SMC-1], 100);
+ lp->useSROM = TRUE;
+ break;
+ }
+
+ return;
+}
+
+/*
+** Assume that the irq's do not follow the PCI spec - this is seems
+** to be true so far (2 for 2).
+*/
+static int
+test_bad_enet(struct net_device *dev, int status)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int i, tmp;
+
+ for (tmp=0,i=0; i<ETH_ALEN; i++) tmp += (u_char)dev->dev_addr[i];
+ if ((tmp == 0) || (tmp == 0x5fa)) {
+ if ((lp->chipset == last.chipset) &&
+ (lp->bus_num == last.bus) && (lp->bus_num > 0)) {
+ for (i=0; i<ETH_ALEN; i++) dev->dev_addr[i] = last.addr[i];
+ for (i=ETH_ALEN-1; i>2; --i) {
+ dev->dev_addr[i] += 1;
+ if (dev->dev_addr[i] != 0) break;
+ }
+ for (i=0; i<ETH_ALEN; i++) last.addr[i] = dev->dev_addr[i];
+ if (!an_exception(lp)) {
+ dev->irq = last.irq;
+ }
+
+ status = 0;
+ }
+ } else if (!status) {
+ last.chipset = lp->chipset;
+ last.bus = lp->bus_num;
+ last.irq = dev->irq;
+ for (i=0; i<ETH_ALEN; i++) last.addr[i] = dev->dev_addr[i];
+ }
+
+ return status;
+}
+
+/*
+** List of board exceptions with correctly wired IRQs
+*/
+static int
+an_exception(struct de4x5_private *lp)
+{
+ if ((*(u_short *)lp->srom.sub_vendor_id == 0x00c0) &&
+ (*(u_short *)lp->srom.sub_system_id == 0x95e0)) {
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+** SROM Read
+*/
+static short
+srom_rd(u_long addr, u_char offset)
+{
+ sendto_srom(SROM_RD | SROM_SR, addr);
+
+ srom_latch(SROM_RD | SROM_SR | DT_CS, addr);
+ srom_command(SROM_RD | SROM_SR | DT_IN | DT_CS, addr);
+ srom_address(SROM_RD | SROM_SR | DT_CS, addr, offset);
+
+ return srom_data(SROM_RD | SROM_SR | DT_CS, addr);
+}
+
+static void
+srom_latch(u_int command, u_long addr)
+{
+ sendto_srom(command, addr);
+ sendto_srom(command | DT_CLK, addr);
+ sendto_srom(command, addr);
+
+ return;
+}
+
+static void
+srom_command(u_int command, u_long addr)
+{
+ srom_latch(command, addr);
+ srom_latch(command, addr);
+ srom_latch((command & 0x0000ff00) | DT_CS, addr);
+
+ return;
+}
+
+static void
+srom_address(u_int command, u_long addr, u_char offset)
+{
+ int i, a;
+
+ a = offset << 2;
+ for (i=0; i<6; i++, a <<= 1) {
+ srom_latch(command | ((a & 0x80) ? DT_IN : 0), addr);
+ }
+ udelay(1);
+
+ i = (getfrom_srom(addr) >> 3) & 0x01;
+
+ return;
+}
+
+static short
+srom_data(u_int command, u_long addr)
+{
+ int i;
+ short word = 0;
+ s32 tmp;
+
+ for (i=0; i<16; i++) {
+ sendto_srom(command | DT_CLK, addr);
+ tmp = getfrom_srom(addr);
+ sendto_srom(command, addr);
+
+ word = (word << 1) | ((tmp >> 3) & 0x01);
+ }
+
+ sendto_srom(command & 0x0000ff00, addr);
+
+ return word;
+}
+
+/*
+static void
+srom_busy(u_int command, u_long addr)
+{
+ sendto_srom((command & 0x0000ff00) | DT_CS, addr);
+
+ while (!((getfrom_srom(addr) >> 3) & 0x01)) {
+ mdelay(1);
+ }
+
+ sendto_srom(command & 0x0000ff00, addr);
+
+ return;
+}
+*/
+
+static void
+sendto_srom(u_int command, u_long addr)
+{
+ outl(command, addr);
+ udelay(1);
+
+ return;
+}
+
+static int
+getfrom_srom(u_long addr)
+{
+ s32 tmp;
+
+ tmp = inl(addr);
+ udelay(1);
+
+ return tmp;
+}
+
+static int
+srom_infoleaf_info(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int i, count;
+ u_char *p;
+
+ /* Find the infoleaf decoder function that matches this chipset */
+ for (i=0; i<INFOLEAF_SIZE; i++) {
+ if (lp->chipset == infoleaf_array[i].chipset) break;
+ }
+ if (i == INFOLEAF_SIZE) {
+ lp->useSROM = FALSE;
+ printk("%s: Cannot find correct chipset for SROM decoding!\n",
+ dev->name);
+ return -ENXIO;
+ }
+
+ lp->infoleaf_fn = infoleaf_array[i].fn;
+
+ /* Find the information offset that this function should use */
+ count = *((u_char *)&lp->srom + 19);
+ p = (u_char *)&lp->srom + 26;
+
+ if (count > 1) {
+ for (i=count; i; --i, p+=3) {
+ if (lp->device == *p) break;
+ }
+ if (i == 0) {
+ lp->useSROM = FALSE;
+ printk("%s: Cannot find correct PCI device [%d] for SROM decoding!\n",
+ dev->name, lp->device);
+ return -ENXIO;
+ }
+ }
+
+ lp->infoleaf_offset = TWIDDLE(p+1);
+
+ return 0;
+}
+
+/*
+** This routine loads any type 1 or 3 MII info into the mii device
+** struct and executes any type 5 code to reset PHY devices for this
+** controller.
+** The info for the MII devices will be valid since the index used
+** will follow the discovery process from MII address 1-31 then 0.
+*/
+static void
+srom_init(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_char *p = (u_char *)&lp->srom + lp->infoleaf_offset;
+ u_char count;
+
+ p+=2;
+ if (lp->chipset == DC21140) {
+ lp->cache.gepc = (*p++ | GEP_CTRL);
+ gep_wr(lp->cache.gepc, dev);
+ }
+
+ /* Block count */
+ count = *p++;
+
+ /* Jump the infoblocks to find types */
+ for (;count; --count) {
+ if (*p < 128) {
+ p += COMPACT_LEN;
+ } else if (*(p+1) == 5) {
+ type5_infoblock(dev, 1, p);
+ p += ((*p & BLOCK_LEN) + 1);
+ } else if (*(p+1) == 4) {
+ p += ((*p & BLOCK_LEN) + 1);
+ } else if (*(p+1) == 3) {
+ type3_infoblock(dev, 1, p);
+ p += ((*p & BLOCK_LEN) + 1);
+ } else if (*(p+1) == 2) {
+ p += ((*p & BLOCK_LEN) + 1);
+ } else if (*(p+1) == 1) {
+ type1_infoblock(dev, 1, p);
+ p += ((*p & BLOCK_LEN) + 1);
+ } else {
+ p += ((*p & BLOCK_LEN) + 1);
+ }
+ }
+
+ return;
+}
+
+/*
+** A generic routine that writes GEP control, data and reset information
+** to the GEP register (21140) or csr15 GEP portion (2114[23]).
+*/
+static void
+srom_exec(struct net_device *dev, u_char *p)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ u_char count = (p ? *p++ : 0);
+ u_short *w = (u_short *)p;
+
+ if (((lp->ibn != 1) && (lp->ibn != 3) && (lp->ibn != 5)) || !count) return;
+
+ if (lp->chipset != DC21140) RESET_SIA;
+
+ while (count--) {
+ gep_wr(((lp->chipset==DC21140) && (lp->ibn!=5) ?
+ *p++ : TWIDDLE(w++)), dev);
+ mdelay(2); /* 2ms per action */
+ }
+
+ if (lp->chipset != DC21140) {
+ outl(lp->cache.csr14, DE4X5_STRR);
+ outl(lp->cache.csr13, DE4X5_SICR);
+ }
+
+ return;
+}
+
+/*
+** Basically this function is a NOP since it will never be called,
+** unless I implement the DC21041 SROM functions. There's no need
+** since the existing code will be satisfactory for all boards.
+*/
+static int
+dc21041_infoleaf(struct net_device *dev)
+{
+ return DE4X5_AUTOSENSE_MS;
+}
+
+static int
+dc21140_infoleaf(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_char count = 0;
+ u_char *p = (u_char *)&lp->srom + lp->infoleaf_offset;
+ int next_tick = DE4X5_AUTOSENSE_MS;
+
+ /* Read the connection type */
+ p+=2;
+
+ /* GEP control */
+ lp->cache.gepc = (*p++ | GEP_CTRL);
+
+ /* Block count */
+ count = *p++;
+
+ /* Recursively figure out the info blocks */
+ if (*p < 128) {
+ next_tick = dc_infoblock[COMPACT](dev, count, p);
+ } else {
+ next_tick = dc_infoblock[*(p+1)](dev, count, p);
+ }
+
+ if (lp->tcount == count) {
+ lp->media = NC;
+ if (lp->media != lp->c_media) {
+ de4x5_dbg_media(dev);
+ lp->c_media = lp->media;
+ }
+ lp->media = INIT;
+ lp->tcount = 0;
+ lp->tx_enable = FALSE;
+ }
+
+ return next_tick & ~TIMER_CB;
+}
+
+static int
+dc21142_infoleaf(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_char count = 0;
+ u_char *p = (u_char *)&lp->srom + lp->infoleaf_offset;
+ int next_tick = DE4X5_AUTOSENSE_MS;
+
+ /* Read the connection type */
+ p+=2;
+
+ /* Block count */
+ count = *p++;
+
+ /* Recursively figure out the info blocks */
+ if (*p < 128) {
+ next_tick = dc_infoblock[COMPACT](dev, count, p);
+ } else {
+ next_tick = dc_infoblock[*(p+1)](dev, count, p);
+ }
+
+ if (lp->tcount == count) {
+ lp->media = NC;
+ if (lp->media != lp->c_media) {
+ de4x5_dbg_media(dev);
+ lp->c_media = lp->media;
+ }
+ lp->media = INIT;
+ lp->tcount = 0;
+ lp->tx_enable = FALSE;
+ }
+
+ return next_tick & ~TIMER_CB;
+}
+
+static int
+dc21143_infoleaf(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_char count = 0;
+ u_char *p = (u_char *)&lp->srom + lp->infoleaf_offset;
+ int next_tick = DE4X5_AUTOSENSE_MS;
+
+ /* Read the connection type */
+ p+=2;
+
+ /* Block count */
+ count = *p++;
+
+ /* Recursively figure out the info blocks */
+ if (*p < 128) {
+ next_tick = dc_infoblock[COMPACT](dev, count, p);
+ } else {
+ next_tick = dc_infoblock[*(p+1)](dev, count, p);
+ }
+ if (lp->tcount == count) {
+ lp->media = NC;
+ if (lp->media != lp->c_media) {
+ de4x5_dbg_media(dev);
+ lp->c_media = lp->media;
+ }
+ lp->media = INIT;
+ lp->tcount = 0;
+ lp->tx_enable = FALSE;
+ }
+
+ return next_tick & ~TIMER_CB;
+}
+
+/*
+** The compact infoblock is only designed for DC21140[A] chips, so
+** we'll reuse the dc21140m_autoconf function. Non MII media only.
+*/
+static int
+compact_infoblock(struct net_device *dev, u_char count, u_char *p)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_char flags, csr6;
+
+ /* Recursively figure out the info blocks */
+ if (--count > lp->tcount) {
+ if (*(p+COMPACT_LEN) < 128) {
+ return dc_infoblock[COMPACT](dev, count, p+COMPACT_LEN);
+ } else {
+ return dc_infoblock[*(p+COMPACT_LEN+1)](dev, count, p+COMPACT_LEN);
+ }
+ }
+
+ if ((lp->media == INIT) && (lp->timeout < 0)) {
+ lp->ibn = COMPACT;
+ lp->active = 0;
+ gep_wr(lp->cache.gepc, dev);
+ lp->infoblock_media = (*p++) & COMPACT_MC;
+ lp->cache.gep = *p++;
+ csr6 = *p++;
+ flags = *p++;
+
+ lp->asBitValid = (flags & 0x80) ? 0 : -1;
+ lp->defMedium = (flags & 0x40) ? -1 : 0;
+ lp->asBit = 1 << ((csr6 >> 1) & 0x07);
+ lp->asPolarity = ((csr6 & 0x80) ? -1 : 0) & lp->asBit;
+ lp->infoblock_csr6 = OMR_DEF | ((csr6 & 0x71) << 18);
+ lp->useMII = FALSE;
+
+ de4x5_switch_mac_port(dev);
+ }
+
+ return dc21140m_autoconf(dev);
+}
+
+/*
+** This block describes non MII media for the DC21140[A] only.
+*/
+static int
+type0_infoblock(struct net_device *dev, u_char count, u_char *p)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_char flags, csr6, len = (*p & BLOCK_LEN)+1;
+
+ /* Recursively figure out the info blocks */
+ if (--count > lp->tcount) {
+ if (*(p+len) < 128) {
+ return dc_infoblock[COMPACT](dev, count, p+len);
+ } else {
+ return dc_infoblock[*(p+len+1)](dev, count, p+len);
+ }
+ }
+
+ if ((lp->media == INIT) && (lp->timeout < 0)) {
+ lp->ibn = 0;
+ lp->active = 0;
+ gep_wr(lp->cache.gepc, dev);
+ p+=2;
+ lp->infoblock_media = (*p++) & BLOCK0_MC;
+ lp->cache.gep = *p++;
+ csr6 = *p++;
+ flags = *p++;
+
+ lp->asBitValid = (flags & 0x80) ? 0 : -1;
+ lp->defMedium = (flags & 0x40) ? -1 : 0;
+ lp->asBit = 1 << ((csr6 >> 1) & 0x07);
+ lp->asPolarity = ((csr6 & 0x80) ? -1 : 0) & lp->asBit;
+ lp->infoblock_csr6 = OMR_DEF | ((csr6 & 0x71) << 18);
+ lp->useMII = FALSE;
+
+ de4x5_switch_mac_port(dev);
+ }
+
+ return dc21140m_autoconf(dev);
+}
+
+/* These functions are under construction! */
+
+static int
+type1_infoblock(struct net_device *dev, u_char count, u_char *p)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_char len = (*p & BLOCK_LEN)+1;
+
+ /* Recursively figure out the info blocks */
+ if (--count > lp->tcount) {
+ if (*(p+len) < 128) {
+ return dc_infoblock[COMPACT](dev, count, p+len);
+ } else {
+ return dc_infoblock[*(p+len+1)](dev, count, p+len);
+ }
+ }
+
+ p += 2;
+ if (lp->state == INITIALISED) {
+ lp->ibn = 1;
+ lp->active = *p++;
+ lp->phy[lp->active].gep = (*p ? p : NULL); p += (*p + 1);
+ lp->phy[lp->active].rst = (*p ? p : NULL); p += (*p + 1);
+ lp->phy[lp->active].mc = TWIDDLE(p); p += 2;
+ lp->phy[lp->active].ana = TWIDDLE(p); p += 2;
+ lp->phy[lp->active].fdx = TWIDDLE(p); p += 2;
+ lp->phy[lp->active].ttm = TWIDDLE(p);
+ return 0;
+ } else if ((lp->media == INIT) && (lp->timeout < 0)) {
+ lp->ibn = 1;
+ lp->active = *p;
+ lp->infoblock_csr6 = OMR_MII_100;
+ lp->useMII = TRUE;
+ lp->infoblock_media = ANS;
+
+ de4x5_switch_mac_port(dev);
+ }
+
+ return dc21140m_autoconf(dev);
+}
+
+static int
+type2_infoblock(struct net_device *dev, u_char count, u_char *p)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_char len = (*p & BLOCK_LEN)+1;
+
+ /* Recursively figure out the info blocks */
+ if (--count > lp->tcount) {
+ if (*(p+len) < 128) {
+ return dc_infoblock[COMPACT](dev, count, p+len);
+ } else {
+ return dc_infoblock[*(p+len+1)](dev, count, p+len);
+ }
+ }
+
+ if ((lp->media == INIT) && (lp->timeout < 0)) {
+ lp->ibn = 2;
+ lp->active = 0;
+ p += 2;
+ lp->infoblock_media = (*p) & MEDIA_CODE;
+
+ if ((*p++) & EXT_FIELD) {
+ lp->cache.csr13 = TWIDDLE(p); p += 2;
+ lp->cache.csr14 = TWIDDLE(p); p += 2;
+ lp->cache.csr15 = TWIDDLE(p); p += 2;
+ } else {
+ lp->cache.csr13 = CSR13;
+ lp->cache.csr14 = CSR14;
+ lp->cache.csr15 = CSR15;
+ }
+ lp->cache.gepc = ((s32)(TWIDDLE(p)) << 16); p += 2;
+ lp->cache.gep = ((s32)(TWIDDLE(p)) << 16);
+ lp->infoblock_csr6 = OMR_SIA;
+ lp->useMII = FALSE;
+
+ de4x5_switch_mac_port(dev);
+ }
+
+ return dc2114x_autoconf(dev);
+}
+
+static int
+type3_infoblock(struct net_device *dev, u_char count, u_char *p)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_char len = (*p & BLOCK_LEN)+1;
+
+ /* Recursively figure out the info blocks */
+ if (--count > lp->tcount) {
+ if (*(p+len) < 128) {
+ return dc_infoblock[COMPACT](dev, count, p+len);
+ } else {
+ return dc_infoblock[*(p+len+1)](dev, count, p+len);
+ }
+ }
+
+ p += 2;
+ if (lp->state == INITIALISED) {
+ lp->ibn = 3;
+ lp->active = *p++;
+ if (MOTO_SROM_BUG) lp->active = 0;
+ lp->phy[lp->active].gep = (*p ? p : NULL); p += (2 * (*p) + 1);
+ lp->phy[lp->active].rst = (*p ? p : NULL); p += (2 * (*p) + 1);
+ lp->phy[lp->active].mc = TWIDDLE(p); p += 2;
+ lp->phy[lp->active].ana = TWIDDLE(p); p += 2;
+ lp->phy[lp->active].fdx = TWIDDLE(p); p += 2;
+ lp->phy[lp->active].ttm = TWIDDLE(p); p += 2;
+ lp->phy[lp->active].mci = *p;
+ return 0;
+ } else if ((lp->media == INIT) && (lp->timeout < 0)) {
+ lp->ibn = 3;
+ lp->active = *p;
+ if (MOTO_SROM_BUG) lp->active = 0;
+ lp->infoblock_csr6 = OMR_MII_100;
+ lp->useMII = TRUE;
+ lp->infoblock_media = ANS;
+
+ de4x5_switch_mac_port(dev);
+ }
+
+ return dc2114x_autoconf(dev);
+}
+
+static int
+type4_infoblock(struct net_device *dev, u_char count, u_char *p)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_char flags, csr6, len = (*p & BLOCK_LEN)+1;
+
+ /* Recursively figure out the info blocks */
+ if (--count > lp->tcount) {
+ if (*(p+len) < 128) {
+ return dc_infoblock[COMPACT](dev, count, p+len);
+ } else {
+ return dc_infoblock[*(p+len+1)](dev, count, p+len);
+ }
+ }
+
+ if ((lp->media == INIT) && (lp->timeout < 0)) {
+ lp->ibn = 4;
+ lp->active = 0;
+ p+=2;
+ lp->infoblock_media = (*p++) & MEDIA_CODE;
+ lp->cache.csr13 = CSR13; /* Hard coded defaults */
+ lp->cache.csr14 = CSR14;
+ lp->cache.csr15 = CSR15;
+ lp->cache.gepc = ((s32)(TWIDDLE(p)) << 16); p += 2;
+ lp->cache.gep = ((s32)(TWIDDLE(p)) << 16); p += 2;
+ csr6 = *p++;
+ flags = *p++;
+
+ lp->asBitValid = (flags & 0x80) ? 0 : -1;
+ lp->defMedium = (flags & 0x40) ? -1 : 0;
+ lp->asBit = 1 << ((csr6 >> 1) & 0x07);
+ lp->asPolarity = ((csr6 & 0x80) ? -1 : 0) & lp->asBit;
+ lp->infoblock_csr6 = OMR_DEF | ((csr6 & 0x71) << 18);
+ lp->useMII = FALSE;
+
+ de4x5_switch_mac_port(dev);
+ }
+
+ return dc2114x_autoconf(dev);
+}
+
+/*
+** This block type provides information for resetting external devices
+** (chips) through the General Purpose Register.
+*/
+static int
+type5_infoblock(struct net_device *dev, u_char count, u_char *p)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_char len = (*p & BLOCK_LEN)+1;
+
+ /* Recursively figure out the info blocks */
+ if (--count > lp->tcount) {
+ if (*(p+len) < 128) {
+ return dc_infoblock[COMPACT](dev, count, p+len);
+ } else {
+ return dc_infoblock[*(p+len+1)](dev, count, p+len);
+ }
+ }
+
+ /* Must be initializing to run this code */
+ if ((lp->state == INITIALISED) || (lp->media == INIT)) {
+ p+=2;
+ lp->rst = p;
+ srom_exec(dev, lp->rst);
+ }
+
+ return DE4X5_AUTOSENSE_MS;
+}
+
+/*
+** MII Read/Write
+*/
+
+static int
+mii_rd(u_char phyreg, u_char phyaddr, u_long ioaddr)
+{
+ mii_wdata(MII_PREAMBLE, 2, ioaddr); /* Start of 34 bit preamble... */
+ mii_wdata(MII_PREAMBLE, 32, ioaddr); /* ...continued */
+ mii_wdata(MII_STRD, 4, ioaddr); /* SFD and Read operation */
+ mii_address(phyaddr, ioaddr); /* PHY address to be accessed */
+ mii_address(phyreg, ioaddr); /* PHY Register to read */
+ mii_ta(MII_STRD, ioaddr); /* Turn around time - 2 MDC */
+
+ return mii_rdata(ioaddr); /* Read data */
+}
+
+static void
+mii_wr(int data, u_char phyreg, u_char phyaddr, u_long ioaddr)
+{
+ mii_wdata(MII_PREAMBLE, 2, ioaddr); /* Start of 34 bit preamble... */
+ mii_wdata(MII_PREAMBLE, 32, ioaddr); /* ...continued */
+ mii_wdata(MII_STWR, 4, ioaddr); /* SFD and Write operation */
+ mii_address(phyaddr, ioaddr); /* PHY address to be accessed */
+ mii_address(phyreg, ioaddr); /* PHY Register to write */
+ mii_ta(MII_STWR, ioaddr); /* Turn around time - 2 MDC */
+ data = mii_swap(data, 16); /* Swap data bit ordering */
+ mii_wdata(data, 16, ioaddr); /* Write data */
+
+ return;
+}
+
+static int
+mii_rdata(u_long ioaddr)
+{
+ int i;
+ s32 tmp = 0;
+
+ for (i=0; i<16; i++) {
+ tmp <<= 1;
+ tmp |= getfrom_mii(MII_MRD | MII_RD, ioaddr);
+ }
+
+ return tmp;
+}
+
+static void
+mii_wdata(int data, int len, u_long ioaddr)
+{
+ int i;
+
+ for (i=0; i<len; i++) {
+ sendto_mii(MII_MWR | MII_WR, data, ioaddr);
+ data >>= 1;
+ }
+
+ return;
+}
+
+static void
+mii_address(u_char addr, u_long ioaddr)
+{
+ int i;
+
+ addr = mii_swap(addr, 5);
+ for (i=0; i<5; i++) {
+ sendto_mii(MII_MWR | MII_WR, addr, ioaddr);
+ addr >>= 1;
+ }
+
+ return;
+}
+
+static void
+mii_ta(u_long rw, u_long ioaddr)
+{
+ if (rw == MII_STWR) {
+ sendto_mii(MII_MWR | MII_WR, 1, ioaddr);
+ sendto_mii(MII_MWR | MII_WR, 0, ioaddr);
+ } else {
+ getfrom_mii(MII_MRD | MII_RD, ioaddr); /* Tri-state MDIO */
+ }
+
+ return;
+}
+
+static int
+mii_swap(int data, int len)
+{
+ int i, tmp = 0;
+
+ for (i=0; i<len; i++) {
+ tmp <<= 1;
+ tmp |= (data & 1);
+ data >>= 1;
+ }
+
+ return tmp;
+}
+
+static void
+sendto_mii(u32 command, int data, u_long ioaddr)
+{
+ u32 j;
+
+ j = (data & 1) << 17;
+ outl(command | j, ioaddr);
+ udelay(1);
+ outl(command | MII_MDC | j, ioaddr);
+ udelay(1);
+
+ return;
+}
+
+static int
+getfrom_mii(u32 command, u_long ioaddr)
+{
+ outl(command, ioaddr);
+ udelay(1);
+ outl(command | MII_MDC, ioaddr);
+ udelay(1);
+
+ return ((inl(ioaddr) >> 19) & 1);
+}
+
+/*
+** Here's 3 ways to calculate the OUI from the ID registers.
+*/
+static int
+mii_get_oui(u_char phyaddr, u_long ioaddr)
+{
+/*
+ union {
+ u_short reg;
+ u_char breg[2];
+ } a;
+ int i, r2, r3, ret=0;*/
+ int r2, r3;
+
+ /* Read r2 and r3 */
+ r2 = mii_rd(MII_ID0, phyaddr, ioaddr);
+ r3 = mii_rd(MII_ID1, phyaddr, ioaddr);
+ /* SEEQ and Cypress way * /
+ / * Shuffle r2 and r3 * /
+ a.reg=0;
+ r3 = ((r3>>10)|(r2<<6))&0x0ff;
+ r2 = ((r2>>2)&0x3fff);
+
+ / * Bit reverse r3 * /
+ for (i=0;i<8;i++) {
+ ret<<=1;
+ ret |= (r3&1);
+ r3>>=1;
+ }
+
+ / * Bit reverse r2 * /
+ for (i=0;i<16;i++) {
+ a.reg<<=1;
+ a.reg |= (r2&1);
+ r2>>=1;
+ }
+
+ / * Swap r2 bytes * /
+ i=a.breg[0];
+ a.breg[0]=a.breg[1];
+ a.breg[1]=i;
+
+ return ((a.reg<<8)|ret); */ /* SEEQ and Cypress way */
+/* return ((r2<<6)|(u_int)(r3>>10)); */ /* NATIONAL and BROADCOM way */
+ return r2; /* (I did it) My way */
+}
+
+/*
+** The SROM spec forces us to search addresses [1-31 0]. Bummer.
+*/
+static int
+mii_get_phy(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ int i, j, k, n, limit=sizeof(phy_info)/sizeof(struct phy_table);
+ int id;
+
+ lp->active = 0;
+ lp->useMII = TRUE;
+
+ /* Search the MII address space for possible PHY devices */
+ for (n=0, lp->mii_cnt=0, i=1; !((i==1) && (n==1)); i=(i+1)%DE4X5_MAX_MII) {
+ lp->phy[lp->active].addr = i;
+ if (i==0) n++; /* Count cycles */
+ while (de4x5_reset_phy(dev)<0) udelay(100);/* Wait for reset */
+ id = mii_get_oui(i, DE4X5_MII);
+ if ((id == 0) || (id == 65535)) continue; /* Valid ID? */
+ for (j=0; j<limit; j++) { /* Search PHY table */
+ if (id != phy_info[j].id) continue; /* ID match? */
+ for (k=0; lp->phy[k].id && (k < DE4X5_MAX_PHY); k++);
+ if (k < DE4X5_MAX_PHY) {
+ memcpy((char *)&lp->phy[k],
+ (char *)&phy_info[j], sizeof(struct phy_table));
+ lp->phy[k].addr = i;
+ lp->mii_cnt++;
+ lp->active++;
+ } else {
+ goto purgatory; /* Stop the search */
+ }
+ break;
+ }
+ if ((j == limit) && (i < DE4X5_MAX_MII)) {
+ for (k=0; lp->phy[k].id && (k < DE4X5_MAX_PHY); k++);
+ lp->phy[k].addr = i;
+ lp->phy[k].id = id;
+ lp->phy[k].spd.reg = GENERIC_REG; /* ANLPA register */
+ lp->phy[k].spd.mask = GENERIC_MASK; /* 100Mb/s technologies */
+ lp->phy[k].spd.value = GENERIC_VALUE; /* TX & T4, H/F Duplex */
+ lp->mii_cnt++;
+ lp->active++;
+ printk("%s: Using generic MII device control. If the board doesn't operate, \nplease mail the following dump to the author:\n", dev->name);
+ j = de4x5_debug;
+ de4x5_debug |= DEBUG_MII;
+ de4x5_dbg_mii(dev, k);
+ de4x5_debug = j;
+ printk("\n");
+ }
+ }
+ purgatory:
+ lp->active = 0;
+ if (lp->phy[0].id) { /* Reset the PHY devices */
+ for (k=0; lp->phy[k].id && (k < DE4X5_MAX_PHY); k++) { /*For each PHY*/
+ mii_wr(MII_CR_RST, MII_CR, lp->phy[k].addr, DE4X5_MII);
+ while (mii_rd(MII_CR, lp->phy[k].addr, DE4X5_MII) & MII_CR_RST);
+
+ de4x5_dbg_mii(dev, k);
+ }
+ }
+ if (!lp->mii_cnt) lp->useMII = FALSE;
+
+ return lp->mii_cnt;
+}
+
+static char *
+build_setup_frame(struct net_device *dev, int mode)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int i;
+ char *pa = lp->setup_frame;
+
+ /* Initialise the setup frame */
+ if (mode == ALL) {
+ memset(lp->setup_frame, 0, SETUP_FRAME_LEN);
+ }
+
+ if (lp->setup_f == HASH_PERF) {
+ for (pa=lp->setup_frame+IMPERF_PA_OFFSET, i=0; i<ETH_ALEN; i++) {
+ *(pa + i) = dev->dev_addr[i]; /* Host address */
+ if (i & 0x01) pa += 2;
+ }
+ *(lp->setup_frame + (HASH_TABLE_LEN >> 3) - 3) = 0x80;
+ } else {
+ for (i=0; i<ETH_ALEN; i++) { /* Host address */
+ *(pa + (i&1)) = dev->dev_addr[i];
+ if (i & 0x01) pa += 4;
+ }
+ for (i=0; i<ETH_ALEN; i++) { /* Broadcast address */
+ *(pa + (i&1)) = (char) 0xff;
+ if (i & 0x01) pa += 4;
+ }
+ }
+
+ return pa; /* Points to the next entry */
+}
+
+static void
+enable_ast(struct net_device *dev, u32 time_out)
+{
+ timeout(dev, (void *)&de4x5_ast, (u_long)dev, time_out);
+
+ return;
+}
+
+static void
+disable_ast(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+
+ del_timer(&lp->timer);
+
+ return;
+}
+
+static long
+de4x5_switch_mac_port(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+ s32 omr;
+
+ STOP_DE4X5;
+
+ /* Assert the OMR_PS bit in CSR6 */
+ omr = (inl(DE4X5_OMR) & ~(OMR_PS | OMR_HBD | OMR_TTM | OMR_PCS | OMR_SCR |
+ OMR_FDX));
+ omr |= lp->infoblock_csr6;
+ if (omr & OMR_PS) omr |= OMR_HBD;
+ outl(omr, DE4X5_OMR);
+
+ /* Soft Reset */
+ RESET_DE4X5;
+
+ /* Restore the GEP - especially for COMPACT and Type 0 Infoblocks */
+ if (lp->chipset == DC21140) {
+ gep_wr(lp->cache.gepc, dev);
+ gep_wr(lp->cache.gep, dev);
+ } else if ((lp->chipset & ~0x0ff) == DC2114x) {
+ reset_init_sia(dev, lp->cache.csr13, lp->cache.csr14, lp->cache.csr15);
+ }
+
+ /* Restore CSR6 */
+ outl(omr, DE4X5_OMR);
+
+ /* Reset CSR8 */
+ inl(DE4X5_MFC);
+
+ return omr;
+}
+
+static void
+gep_wr(s32 data, struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+
+ if (lp->chipset == DC21140) {
+ outl(data, DE4X5_GEP);
+ } else if ((lp->chipset & ~0x00ff) == DC2114x) {
+ outl((data<<16) | lp->cache.csr15, DE4X5_SIGR);
+ }
+
+ return;
+}
+
+static int
+gep_rd(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+
+ if (lp->chipset == DC21140) {
+ return inl(DE4X5_GEP);
+ } else if ((lp->chipset & ~0x00ff) == DC2114x) {
+ return (inl(DE4X5_SIGR) & 0x000fffff);
+ }
+
+ return 0;
+}
+
+static void
+timeout(struct net_device *dev, void (*fn)(u_long data), u_long data, u_long msec)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int dt;
+
+ /* First, cancel any pending timer events */
+ del_timer(&lp->timer);
+
+ /* Convert msec to ticks */
+ dt = (msec * HZ) / 1000;
+ if (dt==0) dt=1;
+
+ /* Set up timer */
+ init_timer(&lp->timer);
+ lp->timer.expires = jiffies + dt;
+ lp->timer.function = fn;
+ lp->timer.data = data;
+ add_timer(&lp->timer);
+
+ return;
+}
+
+static void
+yawn(struct net_device *dev, int state)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+
+ if ((lp->chipset == DC21040) || (lp->chipset == DC21140)) return;
+
+ if(lp->bus == EISA) {
+ switch(state) {
+ case WAKEUP:
+ outb(WAKEUP, PCI_CFPM);
+ mdelay(10);
+ break;
+
+ case SNOOZE:
+ outb(SNOOZE, PCI_CFPM);
+ break;
+
+ case SLEEP:
+ outl(0, DE4X5_SICR);
+ outb(SLEEP, PCI_CFPM);
+ break;
+ }
+ } else {
+ struct pci_dev *pdev = to_pci_dev (lp->gendev);
+ switch(state) {
+ case WAKEUP:
+ pci_write_config_byte(pdev, PCI_CFDA_PSM, WAKEUP);
+ mdelay(10);
+ break;
+
+ case SNOOZE:
+ pci_write_config_byte(pdev, PCI_CFDA_PSM, SNOOZE);
+ break;
+
+ case SLEEP:
+ outl(0, DE4X5_SICR);
+ pci_write_config_byte(pdev, PCI_CFDA_PSM, SLEEP);
+ break;
+ }
+ }
+
+ return;
+}
+
+static void
+de4x5_parse_params(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ char *p, *q, t;
+
+ lp->params.fdx = 0;
+ lp->params.autosense = AUTO;
+
+ if (args == NULL) return;
+
+ if ((p = strstr(args, dev->name))) {
+ if (!(q = strstr(p+strlen(dev->name), "eth"))) q = p + strlen(p);
+ t = *q;
+ *q = '\0';
+
+ if (strstr(p, "fdx") || strstr(p, "FDX")) lp->params.fdx = 1;
+
+ if (strstr(p, "autosense") || strstr(p, "AUTOSENSE")) {
+ if (strstr(p, "TP")) {
+ lp->params.autosense = TP;
+ } else if (strstr(p, "TP_NW")) {
+ lp->params.autosense = TP_NW;
+ } else if (strstr(p, "BNC")) {
+ lp->params.autosense = BNC;
+ } else if (strstr(p, "AUI")) {
+ lp->params.autosense = AUI;
+ } else if (strstr(p, "BNC_AUI")) {
+ lp->params.autosense = BNC;
+ } else if (strstr(p, "10Mb")) {
+ lp->params.autosense = _10Mb;
+ } else if (strstr(p, "100Mb")) {
+ lp->params.autosense = _100Mb;
+ } else if (strstr(p, "AUTO")) {
+ lp->params.autosense = AUTO;
+ }
+ }
+ *q = t;
+ }
+
+ return;
+}
+
+static void
+de4x5_dbg_open(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ int i;
+
+ if (de4x5_debug & DEBUG_OPEN) {
+ printk("%s: de4x5 opening with irq %d\n",dev->name,dev->irq);
+ printk("\tphysical address: ");
+ for (i=0;i<6;i++) {
+ printk("%2.2x:",(short)dev->dev_addr[i]);
+ }
+ printk("\n");
+ printk("Descriptor head addresses:\n");
+ printk("\t0x%8.8lx 0x%8.8lx\n",(u_long)lp->rx_ring,(u_long)lp->tx_ring);
+ printk("Descriptor addresses:\nRX: ");
+ for (i=0;i<lp->rxRingSize-1;i++){
+ if (i < 3) {
+ printk("0x%8.8lx ",(u_long)&lp->rx_ring[i].status);
+ }
+ }
+ printk("...0x%8.8lx\n",(u_long)&lp->rx_ring[i].status);
+ printk("TX: ");
+ for (i=0;i<lp->txRingSize-1;i++){
+ if (i < 3) {
+ printk("0x%8.8lx ", (u_long)&lp->tx_ring[i].status);
+ }
+ }
+ printk("...0x%8.8lx\n", (u_long)&lp->tx_ring[i].status);
+ printk("Descriptor buffers:\nRX: ");
+ for (i=0;i<lp->rxRingSize-1;i++){
+ if (i < 3) {
+ printk("0x%8.8x ",le32_to_cpu(lp->rx_ring[i].buf));
+ }
+ }
+ printk("...0x%8.8x\n",le32_to_cpu(lp->rx_ring[i].buf));
+ printk("TX: ");
+ for (i=0;i<lp->txRingSize-1;i++){
+ if (i < 3) {
+ printk("0x%8.8x ", le32_to_cpu(lp->tx_ring[i].buf));
+ }
+ }
+ printk("...0x%8.8x\n", le32_to_cpu(lp->tx_ring[i].buf));
+ printk("Ring size: \nRX: %d\nTX: %d\n",
+ (short)lp->rxRingSize,
+ (short)lp->txRingSize);
+ }
+
+ return;
+}
+
+static void
+de4x5_dbg_mii(struct net_device *dev, int k)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ u_long iobase = dev->base_addr;
+
+ if (de4x5_debug & DEBUG_MII) {
+ printk("\nMII device address: %d\n", lp->phy[k].addr);
+ printk("MII CR: %x\n",mii_rd(MII_CR,lp->phy[k].addr,DE4X5_MII));
+ printk("MII SR: %x\n",mii_rd(MII_SR,lp->phy[k].addr,DE4X5_MII));
+ printk("MII ID0: %x\n",mii_rd(MII_ID0,lp->phy[k].addr,DE4X5_MII));
+ printk("MII ID1: %x\n",mii_rd(MII_ID1,lp->phy[k].addr,DE4X5_MII));
+ if (lp->phy[k].id != BROADCOM_T4) {
+ printk("MII ANA: %x\n",mii_rd(0x04,lp->phy[k].addr,DE4X5_MII));
+ printk("MII ANC: %x\n",mii_rd(0x05,lp->phy[k].addr,DE4X5_MII));
+ }
+ printk("MII 16: %x\n",mii_rd(0x10,lp->phy[k].addr,DE4X5_MII));
+ if (lp->phy[k].id != BROADCOM_T4) {
+ printk("MII 17: %x\n",mii_rd(0x11,lp->phy[k].addr,DE4X5_MII));
+ printk("MII 18: %x\n",mii_rd(0x12,lp->phy[k].addr,DE4X5_MII));
+ } else {
+ printk("MII 20: %x\n",mii_rd(0x14,lp->phy[k].addr,DE4X5_MII));
+ }
+ }
+
+ return;
+}
+
+static void
+de4x5_dbg_media(struct net_device *dev)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+
+ if (lp->media != lp->c_media) {
+ if (de4x5_debug & DEBUG_MEDIA) {
+ printk("%s: media is %s%s\n", dev->name,
+ (lp->media == NC ? "unconnected, link down or incompatible connection" :
+ (lp->media == TP ? "TP" :
+ (lp->media == ANS ? "TP/Nway" :
+ (lp->media == BNC ? "BNC" :
+ (lp->media == AUI ? "AUI" :
+ (lp->media == BNC_AUI ? "BNC/AUI" :
+ (lp->media == EXT_SIA ? "EXT SIA" :
+ (lp->media == _100Mb ? "100Mb/s" :
+ (lp->media == _10Mb ? "10Mb/s" :
+ "???"
+ ))))))))), (lp->fdx?" full duplex.":"."));
+ }
+ lp->c_media = lp->media;
+ }
+
+ return;
+}
+
+static void
+de4x5_dbg_srom(struct de4x5_srom *p)
+{
+ int i;
+
+ if (de4x5_debug & DEBUG_SROM) {
+ printk("Sub-system Vendor ID: %04x\n", *((u_short *)p->sub_vendor_id));
+ printk("Sub-system ID: %04x\n", *((u_short *)p->sub_system_id));
+ printk("ID Block CRC: %02x\n", (u_char)(p->id_block_crc));
+ printk("SROM version: %02x\n", (u_char)(p->version));
+ printk("# controllers: %02x\n", (u_char)(p->num_controllers));
+
+ printk("Hardware Address: ");
+ for (i=0;i<ETH_ALEN-1;i++) {
+ printk("%02x:", (u_char)*(p->ieee_addr+i));
+ }
+ printk("%02x\n", (u_char)*(p->ieee_addr+i));
+ printk("CRC checksum: %04x\n", (u_short)(p->chksum));
+ for (i=0; i<64; i++) {
+ printk("%3d %04x\n", i<<1, (u_short)*((u_short *)p+i));
+ }
+ }
+
+ return;
+}
+
+static void
+de4x5_dbg_rx(struct sk_buff *skb, int len)
+{
+ int i, j;
+
+ if (de4x5_debug & DEBUG_RX) {
+ printk("R: %02x:%02x:%02x:%02x:%02x:%02x <- %02x:%02x:%02x:%02x:%02x:%02x len/SAP:%02x%02x [%d]\n",
+ (u_char)skb->data[0],
+ (u_char)skb->data[1],
+ (u_char)skb->data[2],
+ (u_char)skb->data[3],
+ (u_char)skb->data[4],
+ (u_char)skb->data[5],
+ (u_char)skb->data[6],
+ (u_char)skb->data[7],
+ (u_char)skb->data[8],
+ (u_char)skb->data[9],
+ (u_char)skb->data[10],
+ (u_char)skb->data[11],
+ (u_char)skb->data[12],
+ (u_char)skb->data[13],
+ len);
+ for (j=0; len>0;j+=16, len-=16) {
+ printk(" %03x: ",j);
+ for (i=0; i<16 && i<len; i++) {
+ printk("%02x ",(u_char)skb->data[i+j]);
+ }
+ printk("\n");
+ }
+ }
+
+ return;
+}
+
+/*
+** Perform IOCTL call functions here. Some are privileged operations and the
+** effective uid is checked in those cases. In the normal course of events
+** this function is only used for my testing.
+*/
+static int
+de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct de4x5_private *lp = netdev_priv(dev);
+ struct de4x5_ioctl *ioc = (struct de4x5_ioctl *) &rq->ifr_ifru;
+ u_long iobase = dev->base_addr;
+ int i, j, status = 0;
+ s32 omr;
+ union {
+ u8 addr[144];
+ u16 sval[72];
+ u32 lval[36];
+ } tmp;
+ u_long flags = 0;
+
+ switch(ioc->cmd) {
+ case DE4X5_GET_HWADDR: /* Get the hardware address */
+ ioc->len = ETH_ALEN;
+ for (i=0; i<ETH_ALEN; i++) {
+ tmp.addr[i] = dev->dev_addr[i];
+ }
+ if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
+ break;
+
+ case DE4X5_SET_HWADDR: /* Set the hardware address */
+ if (!capable(CAP_NET_ADMIN)) return -EPERM;
+ if (copy_from_user(tmp.addr, ioc->data, ETH_ALEN)) return -EFAULT;
+ if (netif_queue_stopped(dev))
+ return -EBUSY;
+ netif_stop_queue(dev);
+ for (i=0; i<ETH_ALEN; i++) {
+ dev->dev_addr[i] = tmp.addr[i];
+ }
+ build_setup_frame(dev, PHYS_ADDR_ONLY);
+ /* Set up the descriptor and give ownership to the card */
+ load_packet(dev, lp->setup_frame, TD_IC | PERFECT_F | TD_SET |
+ SETUP_FRAME_LEN, (struct sk_buff *)1);
+ lp->tx_new = (++lp->tx_new) % lp->txRingSize;
+ outl(POLL_DEMAND, DE4X5_TPD); /* Start the TX */
+ netif_wake_queue(dev); /* Unlock the TX ring */
+ break;
+
+ case DE4X5_SET_PROM: /* Set Promiscuous Mode */
+ if (!capable(CAP_NET_ADMIN)) return -EPERM;
+ omr = inl(DE4X5_OMR);
+ omr |= OMR_PR;
+ outl(omr, DE4X5_OMR);
+ dev->flags |= IFF_PROMISC;
+ break;
+
+ case DE4X5_CLR_PROM: /* Clear Promiscuous Mode */
+ if (!capable(CAP_NET_ADMIN)) return -EPERM;
+ omr = inl(DE4X5_OMR);
+ omr &= ~OMR_PR;
+ outl(omr, DE4X5_OMR);
+ dev->flags &= ~IFF_PROMISC;
+ break;
+
+ case DE4X5_SAY_BOO: /* Say "Boo!" to the kernel log file */
+ if (!capable(CAP_NET_ADMIN)) return -EPERM;
+ printk("%s: Boo!\n", dev->name);
+ break;
+
+ case DE4X5_MCA_EN: /* Enable pass all multicast addressing */
+ if (!capable(CAP_NET_ADMIN)) return -EPERM;
+ omr = inl(DE4X5_OMR);
+ omr |= OMR_PM;
+ outl(omr, DE4X5_OMR);
+ break;
+
+ case DE4X5_GET_STATS: /* Get the driver statistics */
+ {
+ struct pkt_stats statbuf;
+ ioc->len = sizeof(statbuf);
+ spin_lock_irqsave(&lp->lock, flags);
+ memcpy(&statbuf, &lp->pktStats, ioc->len);
+ spin_unlock_irqrestore(&lp->lock, flags);
+ if (copy_to_user(ioc->data, &statbuf, ioc->len))
+ return -EFAULT;
+ break;
+ }
+ case DE4X5_CLR_STATS: /* Zero out the driver statistics */
+ if (!capable(CAP_NET_ADMIN)) return -EPERM;
+ spin_lock_irqsave(&lp->lock, flags);
+ memset(&lp->pktStats, 0, sizeof(lp->pktStats));
+ spin_unlock_irqrestore(&lp->lock, flags);
+ break;
+
+ case DE4X5_GET_OMR: /* Get the OMR Register contents */
+ tmp.addr[0] = inl(DE4X5_OMR);
+ if (copy_to_user(ioc->data, tmp.addr, 1)) return -EFAULT;
+ break;
+
+ case DE4X5_SET_OMR: /* Set the OMR Register contents */
+ if (!capable(CAP_NET_ADMIN)) return -EPERM;
+ if (copy_from_user(tmp.addr, ioc->data, 1)) return -EFAULT;
+ outl(tmp.addr[0], DE4X5_OMR);
+ break;
+
+ case DE4X5_GET_REG: /* Get the DE4X5 Registers */
+ j = 0;
+ tmp.lval[0] = inl(DE4X5_STS); j+=4;
+ tmp.lval[1] = inl(DE4X5_BMR); j+=4;
+ tmp.lval[2] = inl(DE4X5_IMR); j+=4;
+ tmp.lval[3] = inl(DE4X5_OMR); j+=4;
+ tmp.lval[4] = inl(DE4X5_SISR); j+=4;
+ tmp.lval[5] = inl(DE4X5_SICR); j+=4;
+ tmp.lval[6] = inl(DE4X5_STRR); j+=4;
+ tmp.lval[7] = inl(DE4X5_SIGR); j+=4;
+ ioc->len = j;
+ if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
+ break;
+
+#define DE4X5_DUMP 0x0f /* Dump the DE4X5 Status */
+/*
+ case DE4X5_DUMP:
+ j = 0;
+ tmp.addr[j++] = dev->irq;
+ for (i=0; i<ETH_ALEN; i++) {
+ tmp.addr[j++] = dev->dev_addr[i];
+ }
+ tmp.addr[j++] = lp->rxRingSize;
+ tmp.lval[j>>2] = (long)lp->rx_ring; j+=4;
+ tmp.lval[j>>2] = (long)lp->tx_ring; j+=4;
+
+ for (i=0;i<lp->rxRingSize-1;i++){
+ if (i < 3) {
+ tmp.lval[j>>2] = (long)&lp->rx_ring[i].status; j+=4;
+ }
+ }
+ tmp.lval[j>>2] = (long)&lp->rx_ring[i].status; j+=4;
+ for (i=0;i<lp->txRingSize-1;i++){
+ if (i < 3) {
+ tmp.lval[j>>2] = (long)&lp->tx_ring[i].status; j+=4;
+ }
+ }
+ tmp.lval[j>>2] = (long)&lp->tx_ring[i].status; j+=4;
+
+ for (i=0;i<lp->rxRingSize-1;i++){
+ if (i < 3) {
+ tmp.lval[j>>2] = (s32)le32_to_cpu(lp->rx_ring[i].buf); j+=4;
+ }
+ }
+ tmp.lval[j>>2] = (s32)le32_to_cpu(lp->rx_ring[i].buf); j+=4;
+ for (i=0;i<lp->txRingSize-1;i++){
+ if (i < 3) {
+ tmp.lval[j>>2] = (s32)le32_to_cpu(lp->tx_ring[i].buf); j+=4;
+ }
+ }
+ tmp.lval[j>>2] = (s32)le32_to_cpu(lp->tx_ring[i].buf); j+=4;
+
+ for (i=0;i<lp->rxRingSize;i++){
+ tmp.lval[j>>2] = le32_to_cpu(lp->rx_ring[i].status); j+=4;
+ }
+ for (i=0;i<lp->txRingSize;i++){
+ tmp.lval[j>>2] = le32_to_cpu(lp->tx_ring[i].status); j+=4;
+ }
+
+ tmp.lval[j>>2] = inl(DE4X5_BMR); j+=4;
+ tmp.lval[j>>2] = inl(DE4X5_TPD); j+=4;
+ tmp.lval[j>>2] = inl(DE4X5_RPD); j+=4;
+ tmp.lval[j>>2] = inl(DE4X5_RRBA); j+=4;
+ tmp.lval[j>>2] = inl(DE4X5_TRBA); j+=4;
+ tmp.lval[j>>2] = inl(DE4X5_STS); j+=4;
+ tmp.lval[j>>2] = inl(DE4X5_OMR); j+=4;
+ tmp.lval[j>>2] = inl(DE4X5_IMR); j+=4;
+ tmp.lval[j>>2] = lp->chipset; j+=4;
+ if (lp->chipset == DC21140) {
+ tmp.lval[j>>2] = gep_rd(dev); j+=4;
+ } else {
+ tmp.lval[j>>2] = inl(DE4X5_SISR); j+=4;
+ tmp.lval[j>>2] = inl(DE4X5_SICR); j+=4;
+ tmp.lval[j>>2] = inl(DE4X5_STRR); j+=4;
+ tmp.lval[j>>2] = inl(DE4X5_SIGR); j+=4;
+ }
+ tmp.lval[j>>2] = lp->phy[lp->active].id; j+=4;
+ if (lp->phy[lp->active].id && (!lp->useSROM || lp->useMII)) {
+ tmp.lval[j>>2] = lp->active; j+=4;
+ tmp.lval[j>>2]=mii_rd(MII_CR,lp->phy[lp->active].addr,DE4X5_MII); j+=4;
+ tmp.lval[j>>2]=mii_rd(MII_SR,lp->phy[lp->active].addr,DE4X5_MII); j+=4;
+ tmp.lval[j>>2]=mii_rd(MII_ID0,lp->phy[lp->active].addr,DE4X5_MII); j+=4;
+ tmp.lval[j>>2]=mii_rd(MII_ID1,lp->phy[lp->active].addr,DE4X5_MII); j+=4;
+ if (lp->phy[lp->active].id != BROADCOM_T4) {
+ tmp.lval[j>>2]=mii_rd(MII_ANA,lp->phy[lp->active].addr,DE4X5_MII); j+=4;
+ tmp.lval[j>>2]=mii_rd(MII_ANLPA,lp->phy[lp->active].addr,DE4X5_MII); j+=4;
+ }
+ tmp.lval[j>>2]=mii_rd(0x10,lp->phy[lp->active].addr,DE4X5_MII); j+=4;
+ if (lp->phy[lp->active].id != BROADCOM_T4) {
+ tmp.lval[j>>2]=mii_rd(0x11,lp->phy[lp->active].addr,DE4X5_MII); j+=4;
+ tmp.lval[j>>2]=mii_rd(0x12,lp->phy[lp->active].addr,DE4X5_MII); j+=4;
+ } else {
+ tmp.lval[j>>2]=mii_rd(0x14,lp->phy[lp->active].addr,DE4X5_MII); j+=4;
+ }
+ }
+
+ tmp.addr[j++] = lp->txRingSize;
+ tmp.addr[j++] = netif_queue_stopped(dev);
+
+ ioc->len = j;
+ if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
+ break;
+
+*/
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return status;
+}
+
+static int __init de4x5_module_init (void)
+{
+ int err = 0;
+
+#ifdef CONFIG_PCI
+ err = pci_module_init (&de4x5_pci_driver);
+#endif
+#ifdef CONFIG_EISA
+ err |= eisa_driver_register (&de4x5_eisa_driver);
+#endif
+
+ return err;
+}
+
+static void __exit de4x5_module_exit (void)
+{
+#ifdef CONFIG_PCI
+ pci_unregister_driver (&de4x5_pci_driver);
+#endif
+#ifdef CONFIG_EISA
+ eisa_driver_unregister (&de4x5_eisa_driver);
+#endif
+}
+
+module_init (de4x5_module_init);
+module_exit (de4x5_module_exit);
diff --git a/drivers/net/tulip/de4x5.h b/drivers/net/tulip/de4x5.h
new file mode 100644
index 000000000000..ad37a4074302
--- /dev/null
+++ b/drivers/net/tulip/de4x5.h
@@ -0,0 +1,1029 @@
+/*
+ Copyright 1994 Digital Equipment Corporation.
+
+ This software may be used and distributed according to the terms of the
+ GNU General Public License, incorporated herein by reference.
+
+ The author may be reached as davies@wanton.lkg.dec.com or Digital
+ Equipment Corporation, 550 King Street, Littleton MA 01460.
+
+ =========================================================================
+*/
+
+/*
+** DC21040 CSR<1..15> Register Address Map
+*/
+#define DE4X5_BMR iobase+(0x000 << lp->bus) /* Bus Mode Register */
+#define DE4X5_TPD iobase+(0x008 << lp->bus) /* Transmit Poll Demand Reg */
+#define DE4X5_RPD iobase+(0x010 << lp->bus) /* Receive Poll Demand Reg */
+#define DE4X5_RRBA iobase+(0x018 << lp->bus) /* RX Ring Base Address Reg */
+#define DE4X5_TRBA iobase+(0x020 << lp->bus) /* TX Ring Base Address Reg */
+#define DE4X5_STS iobase+(0x028 << lp->bus) /* Status Register */
+#define DE4X5_OMR iobase+(0x030 << lp->bus) /* Operation Mode Register */
+#define DE4X5_IMR iobase+(0x038 << lp->bus) /* Interrupt Mask Register */
+#define DE4X5_MFC iobase+(0x040 << lp->bus) /* Missed Frame Counter */
+#define DE4X5_APROM iobase+(0x048 << lp->bus) /* Ethernet Address PROM */
+#define DE4X5_BROM iobase+(0x048 << lp->bus) /* Boot ROM Register */
+#define DE4X5_SROM iobase+(0x048 << lp->bus) /* Serial ROM Register */
+#define DE4X5_MII iobase+(0x048 << lp->bus) /* MII Interface Register */
+#define DE4X5_DDR iobase+(0x050 << lp->bus) /* Data Diagnostic Register */
+#define DE4X5_FDR iobase+(0x058 << lp->bus) /* Full Duplex Register */
+#define DE4X5_GPT iobase+(0x058 << lp->bus) /* General Purpose Timer Reg.*/
+#define DE4X5_GEP iobase+(0x060 << lp->bus) /* General Purpose Register */
+#define DE4X5_SISR iobase+(0x060 << lp->bus) /* SIA Status Register */
+#define DE4X5_SICR iobase+(0x068 << lp->bus) /* SIA Connectivity Register */
+#define DE4X5_STRR iobase+(0x070 << lp->bus) /* SIA TX/RX Register */
+#define DE4X5_SIGR iobase+(0x078 << lp->bus) /* SIA General Register */
+
+/*
+** EISA Register Address Map
+*/
+#define EISA_ID iobase+0x0c80 /* EISA ID Registers */
+#define EISA_ID0 iobase+0x0c80 /* EISA ID Register 0 */
+#define EISA_ID1 iobase+0x0c81 /* EISA ID Register 1 */
+#define EISA_ID2 iobase+0x0c82 /* EISA ID Register 2 */
+#define EISA_ID3 iobase+0x0c83 /* EISA ID Register 3 */
+#define EISA_CR iobase+0x0c84 /* EISA Control Register */
+#define EISA_REG0 iobase+0x0c88 /* EISA Configuration Register 0 */
+#define EISA_REG1 iobase+0x0c89 /* EISA Configuration Register 1 */
+#define EISA_REG2 iobase+0x0c8a /* EISA Configuration Register 2 */
+#define EISA_REG3 iobase+0x0c8f /* EISA Configuration Register 3 */
+#define EISA_APROM iobase+0x0c90 /* Ethernet Address PROM */
+
+/*
+** PCI/EISA Configuration Registers Address Map
+*/
+#define PCI_CFID iobase+0x0008 /* PCI Configuration ID Register */
+#define PCI_CFCS iobase+0x000c /* PCI Command/Status Register */
+#define PCI_CFRV iobase+0x0018 /* PCI Revision Register */
+#define PCI_CFLT iobase+0x001c /* PCI Latency Timer Register */
+#define PCI_CBIO iobase+0x0028 /* PCI Base I/O Register */
+#define PCI_CBMA iobase+0x002c /* PCI Base Memory Address Register */
+#define PCI_CBER iobase+0x0030 /* PCI Expansion ROM Base Address Reg. */
+#define PCI_CFIT iobase+0x003c /* PCI Configuration Interrupt Register */
+#define PCI_CFDA iobase+0x0040 /* PCI Driver Area Register */
+#define PCI_CFDD iobase+0x0041 /* PCI Driver Dependent Area Register */
+#define PCI_CFPM iobase+0x0043 /* PCI Power Management Area Register */
+
+/*
+** EISA Configuration Register 0 bit definitions
+*/
+#define ER0_BSW 0x80 /* EISA Bus Slave Width, 1: 32 bits */
+#define ER0_BMW 0x40 /* EISA Bus Master Width, 1: 32 bits */
+#define ER0_EPT 0x20 /* EISA PREEMPT Time, 0: 23 BCLKs */
+#define ER0_ISTS 0x10 /* Interrupt Status (X) */
+#define ER0_LI 0x08 /* Latch Interrupts */
+#define ER0_INTL 0x06 /* INTerrupt Level */
+#define ER0_INTT 0x01 /* INTerrupt Type, 0: Level, 1: Edge */
+
+/*
+** EISA Configuration Register 1 bit definitions
+*/
+#define ER1_IAM 0xe0 /* ISA Address Mode */
+#define ER1_IAE 0x10 /* ISA Addressing Enable */
+#define ER1_UPIN 0x0f /* User Pins */
+
+/*
+** EISA Configuration Register 2 bit definitions
+*/
+#define ER2_BRS 0xc0 /* Boot ROM Size */
+#define ER2_BRA 0x3c /* Boot ROM Address <16:13> */
+
+/*
+** EISA Configuration Register 3 bit definitions
+*/
+#define ER3_BWE 0x40 /* Burst Write Enable */
+#define ER3_BRE 0x04 /* Burst Read Enable */
+#define ER3_LSR 0x02 /* Local Software Reset */
+
+/*
+** PCI Configuration ID Register (PCI_CFID). The Device IDs are left
+** shifted 8 bits to allow detection of DC21142 and DC21143 variants with
+** the configuration revision register step number.
+*/
+#define CFID_DID 0xff00 /* Device ID */
+#define CFID_VID 0x00ff /* Vendor ID */
+#define DC21040_DID 0x0200 /* Unique Device ID # */
+#define DC21040_VID 0x1011 /* DC21040 Manufacturer */
+#define DC21041_DID 0x1400 /* Unique Device ID # */
+#define DC21041_VID 0x1011 /* DC21041 Manufacturer */
+#define DC21140_DID 0x0900 /* Unique Device ID # */
+#define DC21140_VID 0x1011 /* DC21140 Manufacturer */
+#define DC2114x_DID 0x1900 /* Unique Device ID # */
+#define DC2114x_VID 0x1011 /* DC2114[23] Manufacturer */
+
+/*
+** Chipset defines
+*/
+#define DC21040 DC21040_DID
+#define DC21041 DC21041_DID
+#define DC21140 DC21140_DID
+#define DC2114x DC2114x_DID
+#define DC21142 (DC2114x_DID | 0x0010)
+#define DC21143 (DC2114x_DID | 0x0030)
+#define DC2114x_BRK 0x0020 /* CFRV break between DC21142 & DC21143 */
+
+#define is_DC21040 ((vendor == DC21040_VID) && (device == DC21040_DID))
+#define is_DC21041 ((vendor == DC21041_VID) && (device == DC21041_DID))
+#define is_DC21140 ((vendor == DC21140_VID) && (device == DC21140_DID))
+#define is_DC2114x ((vendor == DC2114x_VID) && (device == DC2114x_DID))
+#define is_DC21142 ((vendor == DC2114x_VID) && (device == DC21142))
+#define is_DC21143 ((vendor == DC2114x_VID) && (device == DC21143))
+
+/*
+** PCI Configuration Command/Status Register (PCI_CFCS)
+*/
+#define CFCS_DPE 0x80000000 /* Detected Parity Error (S) */
+#define CFCS_SSE 0x40000000 /* Signal System Error (S) */
+#define CFCS_RMA 0x20000000 /* Receive Master Abort (S) */
+#define CFCS_RTA 0x10000000 /* Receive Target Abort (S) */
+#define CFCS_DST 0x06000000 /* DEVSEL Timing (S) */
+#define CFCS_DPR 0x01000000 /* Data Parity Report (S) */
+#define CFCS_FBB 0x00800000 /* Fast Back-To-Back (S) */
+#define CFCS_SEE 0x00000100 /* System Error Enable (C) */
+#define CFCS_PER 0x00000040 /* Parity Error Response (C) */
+#define CFCS_MO 0x00000004 /* Master Operation (C) */
+#define CFCS_MSA 0x00000002 /* Memory Space Access (C) */
+#define CFCS_IOSA 0x00000001 /* I/O Space Access (C) */
+
+/*
+** PCI Configuration Revision Register (PCI_CFRV)
+*/
+#define CFRV_BC 0xff000000 /* Base Class */
+#define CFRV_SC 0x00ff0000 /* Subclass */
+#define CFRV_RN 0x000000f0 /* Revision Number */
+#define CFRV_SN 0x0000000f /* Step Number */
+#define BASE_CLASS 0x02000000 /* Indicates Network Controller */
+#define SUB_CLASS 0x00000000 /* Indicates Ethernet Controller */
+#define STEP_NUMBER 0x00000020 /* Increments for future chips */
+#define REV_NUMBER 0x00000003 /* 0x00, 0x01, 0x02, 0x03: Rev in Step */
+#define CFRV_MASK 0xffff0000 /* Register mask */
+
+/*
+** PCI Configuration Latency Timer Register (PCI_CFLT)
+*/
+#define CFLT_BC 0x0000ff00 /* Latency Timer bits */
+
+/*
+** PCI Configuration Base I/O Address Register (PCI_CBIO)
+*/
+#define CBIO_MASK -128 /* Base I/O Address Mask */
+#define CBIO_IOSI 0x00000001 /* I/O Space Indicator (RO, value is 1) */
+
+/*
+** PCI Configuration Card Information Structure Register (PCI_CCIS)
+*/
+#define CCIS_ROMI 0xf0000000 /* ROM Image */
+#define CCIS_ASO 0x0ffffff8 /* Address Space Offset */
+#define CCIS_ASI 0x00000007 /* Address Space Indicator */
+
+/*
+** PCI Configuration Subsystem ID Register (PCI_SSID)
+*/
+#define SSID_SSID 0xffff0000 /* Subsystem ID */
+#define SSID_SVID 0x0000ffff /* Subsystem Vendor ID */
+
+/*
+** PCI Configuration Expansion ROM Base Address Register (PCI_CBER)
+*/
+#define CBER_MASK 0xfffffc00 /* Expansion ROM Base Address Mask */
+#define CBER_ROME 0x00000001 /* ROM Enable */
+
+/*
+** PCI Configuration Interrupt Register (PCI_CFIT)
+*/
+#define CFIT_MXLT 0xff000000 /* MAX_LAT Value (0.25us periods) */
+#define CFIT_MNGT 0x00ff0000 /* MIN_GNT Value (0.25us periods) */
+#define CFIT_IRQP 0x0000ff00 /* Interrupt Pin */
+#define CFIT_IRQL 0x000000ff /* Interrupt Line */
+
+/*
+** PCI Configuration Power Management Area Register (PCI_CFPM)
+*/
+#define SLEEP 0x80 /* Power Saving Sleep Mode */
+#define SNOOZE 0x40 /* Power Saving Snooze Mode */
+#define WAKEUP 0x00 /* Power Saving Wakeup */
+
+#define PCI_CFDA_DSU 0x41 /* 8 bit Configuration Space Address */
+#define PCI_CFDA_PSM 0x43 /* 8 bit Configuration Space Address */
+
+/*
+** DC21040 Bus Mode Register (DE4X5_BMR)
+*/
+#define BMR_RML 0x00200000 /* [Memory] Read Multiple */
+#define BMR_DBO 0x00100000 /* Descriptor Byte Ordering (Endian) */
+#define BMR_TAP 0x000e0000 /* Transmit Automatic Polling */
+#define BMR_DAS 0x00010000 /* Diagnostic Address Space */
+#define BMR_CAL 0x0000c000 /* Cache Alignment */
+#define BMR_PBL 0x00003f00 /* Programmable Burst Length */
+#define BMR_BLE 0x00000080 /* Big/Little Endian */
+#define BMR_DSL 0x0000007c /* Descriptor Skip Length */
+#define BMR_BAR 0x00000002 /* Bus ARbitration */
+#define BMR_SWR 0x00000001 /* Software Reset */
+
+ /* Timings here are for 10BASE-T/AUI only*/
+#define TAP_NOPOLL 0x00000000 /* No automatic polling */
+#define TAP_200US 0x00020000 /* TX automatic polling every 200us */
+#define TAP_800US 0x00040000 /* TX automatic polling every 800us */
+#define TAP_1_6MS 0x00060000 /* TX automatic polling every 1.6ms */
+#define TAP_12_8US 0x00080000 /* TX automatic polling every 12.8us */
+#define TAP_25_6US 0x000a0000 /* TX automatic polling every 25.6us */
+#define TAP_51_2US 0x000c0000 /* TX automatic polling every 51.2us */
+#define TAP_102_4US 0x000e0000 /* TX automatic polling every 102.4us */
+
+#define CAL_NOUSE 0x00000000 /* Not used */
+#define CAL_8LONG 0x00004000 /* 8-longword alignment */
+#define CAL_16LONG 0x00008000 /* 16-longword alignment */
+#define CAL_32LONG 0x0000c000 /* 32-longword alignment */
+
+#define PBL_0 0x00000000 /* DMA burst length = amount in RX FIFO */
+#define PBL_1 0x00000100 /* 1 longword DMA burst length */
+#define PBL_2 0x00000200 /* 2 longwords DMA burst length */
+#define PBL_4 0x00000400 /* 4 longwords DMA burst length */
+#define PBL_8 0x00000800 /* 8 longwords DMA burst length */
+#define PBL_16 0x00001000 /* 16 longwords DMA burst length */
+#define PBL_32 0x00002000 /* 32 longwords DMA burst length */
+
+#define DSL_0 0x00000000 /* 0 longword / descriptor */
+#define DSL_1 0x00000004 /* 1 longword / descriptor */
+#define DSL_2 0x00000008 /* 2 longwords / descriptor */
+#define DSL_4 0x00000010 /* 4 longwords / descriptor */
+#define DSL_8 0x00000020 /* 8 longwords / descriptor */
+#define DSL_16 0x00000040 /* 16 longwords / descriptor */
+#define DSL_32 0x00000080 /* 32 longwords / descriptor */
+
+/*
+** DC21040 Transmit Poll Demand Register (DE4X5_TPD)
+*/
+#define TPD 0x00000001 /* Transmit Poll Demand */
+
+/*
+** DC21040 Receive Poll Demand Register (DE4X5_RPD)
+*/
+#define RPD 0x00000001 /* Receive Poll Demand */
+
+/*
+** DC21040 Receive Ring Base Address Register (DE4X5_RRBA)
+*/
+#define RRBA 0xfffffffc /* RX Descriptor List Start Address */
+
+/*
+** DC21040 Transmit Ring Base Address Register (DE4X5_TRBA)
+*/
+#define TRBA 0xfffffffc /* TX Descriptor List Start Address */
+
+/*
+** Status Register (DE4X5_STS)
+*/
+#define STS_GPI 0x04000000 /* General Purpose Port Interrupt */
+#define STS_BE 0x03800000 /* Bus Error Bits */
+#define STS_TS 0x00700000 /* Transmit Process State */
+#define STS_RS 0x000e0000 /* Receive Process State */
+#define STS_NIS 0x00010000 /* Normal Interrupt Summary */
+#define STS_AIS 0x00008000 /* Abnormal Interrupt Summary */
+#define STS_ER 0x00004000 /* Early Receive */
+#define STS_FBE 0x00002000 /* Fatal Bus Error */
+#define STS_SE 0x00002000 /* System Error */
+#define STS_LNF 0x00001000 /* Link Fail */
+#define STS_FD 0x00000800 /* Full-Duplex Short Frame Received */
+#define STS_TM 0x00000800 /* Timer Expired (DC21041) */
+#define STS_ETI 0x00000400 /* Early Transmit Interrupt */
+#define STS_AT 0x00000400 /* AUI/TP Pin */
+#define STS_RWT 0x00000200 /* Receive Watchdog Time-Out */
+#define STS_RPS 0x00000100 /* Receive Process Stopped */
+#define STS_RU 0x00000080 /* Receive Buffer Unavailable */
+#define STS_RI 0x00000040 /* Receive Interrupt */
+#define STS_UNF 0x00000020 /* Transmit Underflow */
+#define STS_LNP 0x00000010 /* Link Pass */
+#define STS_ANC 0x00000010 /* Autonegotiation Complete */
+#define STS_TJT 0x00000008 /* Transmit Jabber Time-Out */
+#define STS_TU 0x00000004 /* Transmit Buffer Unavailable */
+#define STS_TPS 0x00000002 /* Transmit Process Stopped */
+#define STS_TI 0x00000001 /* Transmit Interrupt */
+
+#define EB_PAR 0x00000000 /* Parity Error */
+#define EB_MA 0x00800000 /* Master Abort */
+#define EB_TA 0x01000000 /* Target Abort */
+#define EB_RES0 0x01800000 /* Reserved */
+#define EB_RES1 0x02000000 /* Reserved */
+
+#define TS_STOP 0x00000000 /* Stopped */
+#define TS_FTD 0x00100000 /* Fetch Transmit Descriptor */
+#define TS_WEOT 0x00200000 /* Wait for End Of Transmission */
+#define TS_QDAT 0x00300000 /* Queue skb data into TX FIFO */
+#define TS_RES 0x00400000 /* Reserved */
+#define TS_SPKT 0x00500000 /* Setup Packet */
+#define TS_SUSP 0x00600000 /* Suspended */
+#define TS_CLTD 0x00700000 /* Close Transmit Descriptor */
+
+#define RS_STOP 0x00000000 /* Stopped */
+#define RS_FRD 0x00020000 /* Fetch Receive Descriptor */
+#define RS_CEOR 0x00040000 /* Check for End of Receive Packet */
+#define RS_WFRP 0x00060000 /* Wait for Receive Packet */
+#define RS_SUSP 0x00080000 /* Suspended */
+#define RS_CLRD 0x000a0000 /* Close Receive Descriptor */
+#define RS_FLUSH 0x000c0000 /* Flush RX FIFO */
+#define RS_QRFS 0x000e0000 /* Queue RX FIFO into RX Skb */
+
+#define INT_CANCEL 0x0001ffff /* For zeroing all interrupt sources */
+
+/*
+** Operation Mode Register (DE4X5_OMR)
+*/
+#define OMR_SC 0x80000000 /* Special Capture Effect Enable */
+#define OMR_RA 0x40000000 /* Receive All */
+#define OMR_SDP 0x02000000 /* SD Polarity - MUST BE ASSERTED */
+#define OMR_SCR 0x01000000 /* Scrambler Mode */
+#define OMR_PCS 0x00800000 /* PCS Function */
+#define OMR_TTM 0x00400000 /* Transmit Threshold Mode */
+#define OMR_SF 0x00200000 /* Store and Forward */
+#define OMR_HBD 0x00080000 /* HeartBeat Disable */
+#define OMR_PS 0x00040000 /* Port Select */
+#define OMR_CA 0x00020000 /* Capture Effect Enable */
+#define OMR_BP 0x00010000 /* Back Pressure */
+#define OMR_TR 0x0000c000 /* Threshold Control Bits */
+#define OMR_ST 0x00002000 /* Start/Stop Transmission Command */
+#define OMR_FC 0x00001000 /* Force Collision Mode */
+#define OMR_OM 0x00000c00 /* Operating Mode */
+#define OMR_FDX 0x00000200 /* Full Duplex Mode */
+#define OMR_FKD 0x00000100 /* Flaky Oscillator Disable */
+#define OMR_PM 0x00000080 /* Pass All Multicast */
+#define OMR_PR 0x00000040 /* Promiscuous Mode */
+#define OMR_SB 0x00000020 /* Start/Stop Backoff Counter */
+#define OMR_IF 0x00000010 /* Inverse Filtering */
+#define OMR_PB 0x00000008 /* Pass Bad Frames */
+#define OMR_HO 0x00000004 /* Hash Only Filtering Mode */
+#define OMR_SR 0x00000002 /* Start/Stop Receive */
+#define OMR_HP 0x00000001 /* Hash/Perfect Receive Filtering Mode */
+
+#define TR_72 0x00000000 /* Threshold set to 72 (128) bytes */
+#define TR_96 0x00004000 /* Threshold set to 96 (256) bytes */
+#define TR_128 0x00008000 /* Threshold set to 128 (512) bytes */
+#define TR_160 0x0000c000 /* Threshold set to 160 (1024) bytes */
+
+#define OMR_DEF (OMR_SDP)
+#define OMR_SIA (OMR_SDP | OMR_TTM)
+#define OMR_SYM (OMR_SDP | OMR_SCR | OMR_PCS | OMR_HBD | OMR_PS)
+#define OMR_MII_10 (OMR_SDP | OMR_TTM | OMR_PS)
+#define OMR_MII_100 (OMR_SDP | OMR_HBD | OMR_PS)
+
+/*
+** DC21040 Interrupt Mask Register (DE4X5_IMR)
+*/
+#define IMR_GPM 0x04000000 /* General Purpose Port Mask */
+#define IMR_NIM 0x00010000 /* Normal Interrupt Summary Mask */
+#define IMR_AIM 0x00008000 /* Abnormal Interrupt Summary Mask */
+#define IMR_ERM 0x00004000 /* Early Receive Mask */
+#define IMR_FBM 0x00002000 /* Fatal Bus Error Mask */
+#define IMR_SEM 0x00002000 /* System Error Mask */
+#define IMR_LFM 0x00001000 /* Link Fail Mask */
+#define IMR_FDM 0x00000800 /* Full-Duplex (Short Frame) Mask */
+#define IMR_TMM 0x00000800 /* Timer Expired Mask (DC21041) */
+#define IMR_ETM 0x00000400 /* Early Transmit Interrupt Mask */
+#define IMR_ATM 0x00000400 /* AUI/TP Switch Mask */
+#define IMR_RWM 0x00000200 /* Receive Watchdog Time-Out Mask */
+#define IMR_RSM 0x00000100 /* Receive Stopped Mask */
+#define IMR_RUM 0x00000080 /* Receive Buffer Unavailable Mask */
+#define IMR_RIM 0x00000040 /* Receive Interrupt Mask */
+#define IMR_UNM 0x00000020 /* Underflow Interrupt Mask */
+#define IMR_ANM 0x00000010 /* Autonegotiation Complete Mask */
+#define IMR_LPM 0x00000010 /* Link Pass */
+#define IMR_TJM 0x00000008 /* Transmit Time-Out Jabber Mask */
+#define IMR_TUM 0x00000004 /* Transmit Buffer Unavailable Mask */
+#define IMR_TSM 0x00000002 /* Transmission Stopped Mask */
+#define IMR_TIM 0x00000001 /* Transmit Interrupt Mask */
+
+/*
+** Missed Frames and FIFO Overflow Counters (DE4X5_MFC)
+*/
+#define MFC_FOCO 0x10000000 /* FIFO Overflow Counter Overflow Bit */
+#define MFC_FOC 0x0ffe0000 /* FIFO Overflow Counter Bits */
+#define MFC_OVFL 0x00010000 /* Missed Frames Counter Overflow Bit */
+#define MFC_CNTR 0x0000ffff /* Missed Frames Counter Bits */
+#define MFC_FOCM 0x1ffe0000 /* FIFO Overflow Counter Mask */
+
+/*
+** DC21040 Ethernet Address PROM (DE4X5_APROM)
+*/
+#define APROM_DN 0x80000000 /* Data Not Valid */
+#define APROM_DT 0x000000ff /* Address Byte */
+
+/*
+** DC21041 Boot/Ethernet Address ROM (DE4X5_BROM)
+*/
+#define BROM_MODE 0x00008000 /* MODE_1: 0, MODE_0: 1 (read only) */
+#define BROM_RD 0x00004000 /* Read from Boot ROM */
+#define BROM_WR 0x00002000 /* Write to Boot ROM */
+#define BROM_BR 0x00001000 /* Select Boot ROM when set */
+#define BROM_SR 0x00000800 /* Select Serial ROM when set */
+#define BROM_REG 0x00000400 /* External Register Select */
+#define BROM_DT 0x000000ff /* Data Byte */
+
+/*
+** DC21041 Serial/Ethernet Address ROM (DE4X5_SROM, DE4X5_MII)
+*/
+#define MII_MDI 0x00080000 /* MII Management Data In */
+#define MII_MDO 0x00060000 /* MII Management Mode/Data Out */
+#define MII_MRD 0x00040000 /* MII Management Define Read Mode */
+#define MII_MWR 0x00000000 /* MII Management Define Write Mode */
+#define MII_MDT 0x00020000 /* MII Management Data Out */
+#define MII_MDC 0x00010000 /* MII Management Clock */
+#define MII_RD 0x00004000 /* Read from MII */
+#define MII_WR 0x00002000 /* Write to MII */
+#define MII_SEL 0x00000800 /* Select MII when RESET */
+
+#define SROM_MODE 0x00008000 /* MODE_1: 0, MODE_0: 1 (read only) */
+#define SROM_RD 0x00004000 /* Read from Boot ROM */
+#define SROM_WR 0x00002000 /* Write to Boot ROM */
+#define SROM_BR 0x00001000 /* Select Boot ROM when set */
+#define SROM_SR 0x00000800 /* Select Serial ROM when set */
+#define SROM_REG 0x00000400 /* External Register Select */
+#define SROM_DT 0x000000ff /* Data Byte */
+
+#define DT_OUT 0x00000008 /* Serial Data Out */
+#define DT_IN 0x00000004 /* Serial Data In */
+#define DT_CLK 0x00000002 /* Serial ROM Clock */
+#define DT_CS 0x00000001 /* Serial ROM Chip Select */
+
+#define MII_PREAMBLE 0xffffffff /* MII Management Preamble */
+#define MII_TEST 0xaaaaaaaa /* MII Test Signal */
+#define MII_STRD 0x06 /* Start of Frame+Op Code: use low nibble */
+#define MII_STWR 0x0a /* Start of Frame+Op Code: use low nibble */
+
+#define MII_CR 0x00 /* MII Management Control Register */
+#define MII_SR 0x01 /* MII Management Status Register */
+#define MII_ID0 0x02 /* PHY Identifier Register 0 */
+#define MII_ID1 0x03 /* PHY Identifier Register 1 */
+#define MII_ANA 0x04 /* Auto Negotiation Advertisement */
+#define MII_ANLPA 0x05 /* Auto Negotiation Link Partner Ability */
+#define MII_ANE 0x06 /* Auto Negotiation Expansion */
+#define MII_ANP 0x07 /* Auto Negotiation Next Page TX */
+
+#define DE4X5_MAX_MII 32 /* Maximum address of MII PHY devices */
+
+/*
+** MII Management Control Register
+*/
+#define MII_CR_RST 0x8000 /* RESET the PHY chip */
+#define MII_CR_LPBK 0x4000 /* Loopback enable */
+#define MII_CR_SPD 0x2000 /* 0: 10Mb/s; 1: 100Mb/s */
+#define MII_CR_10 0x0000 /* Set 10Mb/s */
+#define MII_CR_100 0x2000 /* Set 100Mb/s */
+#define MII_CR_ASSE 0x1000 /* Auto Speed Select Enable */
+#define MII_CR_PD 0x0800 /* Power Down */
+#define MII_CR_ISOL 0x0400 /* Isolate Mode */
+#define MII_CR_RAN 0x0200 /* Restart Auto Negotiation */
+#define MII_CR_FDM 0x0100 /* Full Duplex Mode */
+#define MII_CR_CTE 0x0080 /* Collision Test Enable */
+
+/*
+** MII Management Status Register
+*/
+#define MII_SR_T4C 0x8000 /* 100BASE-T4 capable */
+#define MII_SR_TXFD 0x4000 /* 100BASE-TX Full Duplex capable */
+#define MII_SR_TXHD 0x2000 /* 100BASE-TX Half Duplex capable */
+#define MII_SR_TFD 0x1000 /* 10BASE-T Full Duplex capable */
+#define MII_SR_THD 0x0800 /* 10BASE-T Half Duplex capable */
+#define MII_SR_ASSC 0x0020 /* Auto Speed Selection Complete*/
+#define MII_SR_RFD 0x0010 /* Remote Fault Detected */
+#define MII_SR_ANC 0x0008 /* Auto Negotiation capable */
+#define MII_SR_LKS 0x0004 /* Link Status */
+#define MII_SR_JABD 0x0002 /* Jabber Detect */
+#define MII_SR_XC 0x0001 /* Extended Capabilities */
+
+/*
+** MII Management Auto Negotiation Advertisement Register
+*/
+#define MII_ANA_TAF 0x03e0 /* Technology Ability Field */
+#define MII_ANA_T4AM 0x0200 /* T4 Technology Ability Mask */
+#define MII_ANA_TXAM 0x0180 /* TX Technology Ability Mask */
+#define MII_ANA_FDAM 0x0140 /* Full Duplex Technology Ability Mask */
+#define MII_ANA_HDAM 0x02a0 /* Half Duplex Technology Ability Mask */
+#define MII_ANA_100M 0x0380 /* 100Mb Technology Ability Mask */
+#define MII_ANA_10M 0x0060 /* 10Mb Technology Ability Mask */
+#define MII_ANA_CSMA 0x0001 /* CSMA-CD Capable */
+
+/*
+** MII Management Auto Negotiation Remote End Register
+*/
+#define MII_ANLPA_NP 0x8000 /* Next Page (Enable) */
+#define MII_ANLPA_ACK 0x4000 /* Remote Acknowledge */
+#define MII_ANLPA_RF 0x2000 /* Remote Fault */
+#define MII_ANLPA_TAF 0x03e0 /* Technology Ability Field */
+#define MII_ANLPA_T4AM 0x0200 /* T4 Technology Ability Mask */
+#define MII_ANLPA_TXAM 0x0180 /* TX Technology Ability Mask */
+#define MII_ANLPA_FDAM 0x0140 /* Full Duplex Technology Ability Mask */
+#define MII_ANLPA_HDAM 0x02a0 /* Half Duplex Technology Ability Mask */
+#define MII_ANLPA_100M 0x0380 /* 100Mb Technology Ability Mask */
+#define MII_ANLPA_10M 0x0060 /* 10Mb Technology Ability Mask */
+#define MII_ANLPA_CSMA 0x0001 /* CSMA-CD Capable */
+
+/*
+** SROM Media Definitions (ABG SROM Section)
+*/
+#define MEDIA_NWAY 0x0080 /* Nway (Auto Negotiation) on PHY */
+#define MEDIA_MII 0x0040 /* MII Present on the adapter */
+#define MEDIA_FIBRE 0x0008 /* Fibre Media present */
+#define MEDIA_AUI 0x0004 /* AUI Media present */
+#define MEDIA_TP 0x0002 /* TP Media present */
+#define MEDIA_BNC 0x0001 /* BNC Media present */
+
+/*
+** SROM Definitions (Digital Semiconductor Format)
+*/
+#define SROM_SSVID 0x0000 /* Sub-system Vendor ID offset */
+#define SROM_SSID 0x0002 /* Sub-system ID offset */
+#define SROM_CISPL 0x0004 /* CardBus CIS Pointer low offset */
+#define SROM_CISPH 0x0006 /* CardBus CIS Pointer high offset */
+#define SROM_IDCRC 0x0010 /* ID Block CRC offset*/
+#define SROM_RSVD2 0x0011 /* ID Reserved 2 offset */
+#define SROM_SFV 0x0012 /* SROM Format Version offset */
+#define SROM_CCNT 0x0013 /* Controller Count offset */
+#define SROM_HWADD 0x0014 /* Hardware Address offset */
+#define SROM_MRSVD 0x007c /* Manufacturer Reserved offset*/
+#define SROM_CRC 0x007e /* SROM CRC offset */
+
+/*
+** SROM Media Connection Definitions
+*/
+#define SROM_10BT 0x0000 /* 10BASE-T half duplex */
+#define SROM_10BTN 0x0100 /* 10BASE-T with Nway */
+#define SROM_10BTF 0x0204 /* 10BASE-T full duplex */
+#define SROM_10BTNLP 0x0400 /* 10BASE-T without Link Pass test */
+#define SROM_10B2 0x0001 /* 10BASE-2 (BNC) */
+#define SROM_10B5 0x0002 /* 10BASE-5 (AUI) */
+#define SROM_100BTH 0x0003 /* 100BASE-T half duplex */
+#define SROM_100BTF 0x0205 /* 100BASE-T full duplex */
+#define SROM_100BT4 0x0006 /* 100BASE-T4 */
+#define SROM_100BFX 0x0007 /* 100BASE-FX half duplex (Fiber) */
+#define SROM_M10BT 0x0009 /* MII 10BASE-T half duplex */
+#define SROM_M10BTF 0x020a /* MII 10BASE-T full duplex */
+#define SROM_M100BT 0x000d /* MII 100BASE-T half duplex */
+#define SROM_M100BTF 0x020e /* MII 100BASE-T full duplex */
+#define SROM_M100BT4 0x000f /* MII 100BASE-T4 */
+#define SROM_M100BF 0x0010 /* MII 100BASE-FX half duplex */
+#define SROM_M100BFF 0x0211 /* MII 100BASE-FX full duplex */
+#define SROM_PDA 0x0800 /* Powerup & Dynamic Autosense */
+#define SROM_PAO 0x8800 /* Powerup Autosense Only */
+#define SROM_NSMI 0xffff /* No Selected Media Information */
+
+/*
+** SROM Media Definitions
+*/
+#define SROM_10BASET 0x0000 /* 10BASE-T half duplex */
+#define SROM_10BASE2 0x0001 /* 10BASE-2 (BNC) */
+#define SROM_10BASE5 0x0002 /* 10BASE-5 (AUI) */
+#define SROM_100BASET 0x0003 /* 100BASE-T half duplex */
+#define SROM_10BASETF 0x0004 /* 10BASE-T full duplex */
+#define SROM_100BASETF 0x0005 /* 100BASE-T full duplex */
+#define SROM_100BASET4 0x0006 /* 100BASE-T4 */
+#define SROM_100BASEF 0x0007 /* 100BASE-FX half duplex */
+#define SROM_100BASEFF 0x0008 /* 100BASE-FX full duplex */
+
+#define BLOCK_LEN 0x7f /* Extended blocks length mask */
+#define EXT_FIELD 0x40 /* Extended blocks extension field bit */
+#define MEDIA_CODE 0x3f /* Extended blocks media code mask */
+
+/*
+** SROM Compact Format Block Masks
+*/
+#define COMPACT_FI 0x80 /* Format Indicator */
+#define COMPACT_LEN 0x04 /* Length */
+#define COMPACT_MC 0x3f /* Media Code */
+
+/*
+** SROM Extended Format Block Type 0 Masks
+*/
+#define BLOCK0_FI 0x80 /* Format Indicator */
+#define BLOCK0_MCS 0x80 /* Media Code byte Sign */
+#define BLOCK0_MC 0x3f /* Media Code */
+
+/*
+** DC21040 Full Duplex Register (DE4X5_FDR)
+*/
+#define FDR_FDACV 0x0000ffff /* Full Duplex Auto Configuration Value */
+
+/*
+** DC21041 General Purpose Timer Register (DE4X5_GPT)
+*/
+#define GPT_CON 0x00010000 /* One shot: 0, Continuous: 1 */
+#define GPT_VAL 0x0000ffff /* Timer Value */
+
+/*
+** DC21140 General Purpose Register (DE4X5_GEP) (hardware dependent bits)
+*/
+/* Valid ONLY for DE500 hardware */
+#define GEP_LNP 0x00000080 /* Link Pass (input) */
+#define GEP_SLNK 0x00000040 /* SYM LINK (input) */
+#define GEP_SDET 0x00000020 /* Signal Detect (input) */
+#define GEP_HRST 0x00000010 /* Hard RESET (to PHY) (output) */
+#define GEP_FDXD 0x00000008 /* Full Duplex Disable (output) */
+#define GEP_PHYL 0x00000004 /* PHY Loopback (output) */
+#define GEP_FLED 0x00000002 /* Force Activity LED on (output) */
+#define GEP_MODE 0x00000001 /* 0: 10Mb/s, 1: 100Mb/s */
+#define GEP_INIT 0x0000011f /* Setup inputs (0) and outputs (1) */
+#define GEP_CTRL 0x00000100 /* GEP control bit */
+
+/*
+** SIA Register Defaults
+*/
+#define CSR13 0x00000001
+#define CSR14 0x0003ff7f /* Autonegotiation disabled */
+#define CSR15 0x00000008
+
+/*
+** SIA Status Register (DE4X5_SISR)
+*/
+#define SISR_LPC 0xffff0000 /* Link Partner's Code Word */
+#define SISR_LPN 0x00008000 /* Link Partner Negotiable */
+#define SISR_ANS 0x00007000 /* Auto Negotiation Arbitration State */
+#define SISR_NSN 0x00000800 /* Non Stable NLPs Detected (DC21041) */
+#define SISR_TRF 0x00000800 /* Transmit Remote Fault */
+#define SISR_NSND 0x00000400 /* Non Stable NLPs Detected (DC21142) */
+#define SISR_ANR_FDS 0x00000400 /* Auto Negotiate Restart/Full Duplex Sel.*/
+#define SISR_TRA 0x00000200 /* 10BASE-T Receive Port Activity */
+#define SISR_NRA 0x00000200 /* Non Selected Port Receive Activity */
+#define SISR_ARA 0x00000100 /* AUI Receive Port Activity */
+#define SISR_SRA 0x00000100 /* Selected Port Receive Activity */
+#define SISR_DAO 0x00000080 /* PLL All One */
+#define SISR_DAZ 0x00000040 /* PLL All Zero */
+#define SISR_DSP 0x00000020 /* PLL Self-Test Pass */
+#define SISR_DSD 0x00000010 /* PLL Self-Test Done */
+#define SISR_APS 0x00000008 /* Auto Polarity State */
+#define SISR_LKF 0x00000004 /* Link Fail Status */
+#define SISR_LS10 0x00000004 /* 10Mb/s Link Fail Status */
+#define SISR_NCR 0x00000002 /* Network Connection Error */
+#define SISR_LS100 0x00000002 /* 100Mb/s Link Fail Status */
+#define SISR_PAUI 0x00000001 /* AUI_TP Indication */
+#define SISR_MRA 0x00000001 /* MII Receive Port Activity */
+
+#define ANS_NDIS 0x00000000 /* Nway disable */
+#define ANS_TDIS 0x00001000 /* Transmit Disable */
+#define ANS_ADET 0x00002000 /* Ability Detect */
+#define ANS_ACK 0x00003000 /* Acknowledge */
+#define ANS_CACK 0x00004000 /* Complete Acknowledge */
+#define ANS_NWOK 0x00005000 /* Nway OK - FLP Link Good */
+#define ANS_LCHK 0x00006000 /* Link Check */
+
+#define SISR_RST 0x00000301 /* CSR12 reset */
+#define SISR_ANR 0x00001301 /* Autonegotiation restart */
+
+/*
+** SIA Connectivity Register (DE4X5_SICR)
+*/
+#define SICR_SDM 0xffff0000 /* SIA Diagnostics Mode */
+#define SICR_OE57 0x00008000 /* Output Enable 5 6 7 */
+#define SICR_OE24 0x00004000 /* Output Enable 2 4 */
+#define SICR_OE13 0x00002000 /* Output Enable 1 3 */
+#define SICR_IE 0x00001000 /* Input Enable */
+#define SICR_EXT 0x00000000 /* SIA MUX Select External SIA Mode */
+#define SICR_D_SIA 0x00000400 /* SIA MUX Select Diagnostics - SIA Sigs */
+#define SICR_DPLL 0x00000800 /* SIA MUX Select Diagnostics - DPLL Sigs*/
+#define SICR_APLL 0x00000a00 /* SIA MUX Select Diagnostics - DPLL Sigs*/
+#define SICR_D_RxM 0x00000c00 /* SIA MUX Select Diagnostics - RxM Sigs */
+#define SICR_M_RxM 0x00000d00 /* SIA MUX Select Diagnostics - RxM Sigs */
+#define SICR_LNKT 0x00000e00 /* SIA MUX Select Diagnostics - Link Test*/
+#define SICR_SEL 0x00000f00 /* SIA MUX Select AUI or TP with LEDs */
+#define SICR_ASE 0x00000080 /* APLL Start Enable*/
+#define SICR_SIM 0x00000040 /* Serial Interface Input Multiplexer */
+#define SICR_ENI 0x00000020 /* Encoder Input Multiplexer */
+#define SICR_EDP 0x00000010 /* SIA PLL External Input Enable */
+#define SICR_AUI 0x00000008 /* 10Base-T (0) or AUI (1) */
+#define SICR_CAC 0x00000004 /* CSR Auto Configuration */
+#define SICR_PS 0x00000002 /* Pin AUI/TP Selection */
+#define SICR_SRL 0x00000001 /* SIA Reset */
+#define SIA_RESET 0x00000000 /* SIA Reset Value */
+
+/*
+** SIA Transmit and Receive Register (DE4X5_STRR)
+*/
+#define STRR_TAS 0x00008000 /* 10Base-T/AUI Autosensing Enable */
+#define STRR_SPP 0x00004000 /* Set Polarity Plus */
+#define STRR_APE 0x00002000 /* Auto Polarity Enable */
+#define STRR_LTE 0x00001000 /* Link Test Enable */
+#define STRR_SQE 0x00000800 /* Signal Quality Enable */
+#define STRR_CLD 0x00000400 /* Collision Detect Enable */
+#define STRR_CSQ 0x00000200 /* Collision Squelch Enable */
+#define STRR_RSQ 0x00000100 /* Receive Squelch Enable */
+#define STRR_ANE 0x00000080 /* Auto Negotiate Enable */
+#define STRR_HDE 0x00000040 /* Half Duplex Enable */
+#define STRR_CPEN 0x00000030 /* Compensation Enable */
+#define STRR_LSE 0x00000008 /* Link Pulse Send Enable */
+#define STRR_DREN 0x00000004 /* Driver Enable */
+#define STRR_LBK 0x00000002 /* Loopback Enable */
+#define STRR_ECEN 0x00000001 /* Encoder Enable */
+#define STRR_RESET 0xffffffff /* Reset value for STRR */
+
+/*
+** SIA General Register (DE4X5_SIGR)
+*/
+#define SIGR_RMI 0x40000000 /* Receive Match Interrupt */
+#define SIGR_GI1 0x20000000 /* General Port Interrupt 1 */
+#define SIGR_GI0 0x10000000 /* General Port Interrupt 0 */
+#define SIGR_CWE 0x08000000 /* Control Write Enable */
+#define SIGR_RME 0x04000000 /* Receive Match Enable */
+#define SIGR_GEI1 0x02000000 /* GEP Interrupt Enable on Port 1 */
+#define SIGR_GEI0 0x01000000 /* GEP Interrupt Enable on Port 0 */
+#define SIGR_LGS3 0x00800000 /* LED/GEP3 Select */
+#define SIGR_LGS2 0x00400000 /* LED/GEP2 Select */
+#define SIGR_LGS1 0x00200000 /* LED/GEP1 Select */
+#define SIGR_LGS0 0x00100000 /* LED/GEP0 Select */
+#define SIGR_MD 0x000f0000 /* General Purpose Mode and Data */
+#define SIGR_LV2 0x00008000 /* General Purpose LED2 value */
+#define SIGR_LE2 0x00004000 /* General Purpose LED2 enable */
+#define SIGR_FRL 0x00002000 /* Force Receiver Low */
+#define SIGR_DPST 0x00001000 /* PLL Self Test Start */
+#define SIGR_LSD 0x00000800 /* LED Stretch Disable */
+#define SIGR_FLF 0x00000400 /* Force Link Fail */
+#define SIGR_FUSQ 0x00000200 /* Force Unsquelch */
+#define SIGR_TSCK 0x00000100 /* Test Clock */
+#define SIGR_LV1 0x00000080 /* General Purpose LED1 value */
+#define SIGR_LE1 0x00000040 /* General Purpose LED1 enable */
+#define SIGR_RWR 0x00000020 /* Receive Watchdog Release */
+#define SIGR_RWD 0x00000010 /* Receive Watchdog Disable */
+#define SIGR_ABM 0x00000008 /* BNC: 0, AUI:1 */
+#define SIGR_JCK 0x00000004 /* Jabber Clock */
+#define SIGR_HUJ 0x00000002 /* Host Unjab */
+#define SIGR_JBD 0x00000001 /* Jabber Disable */
+#define SIGR_RESET 0xffff0000 /* Reset value for SIGR */
+
+/*
+** Receive Descriptor Bit Summary
+*/
+#define R_OWN 0x80000000 /* Own Bit */
+#define RD_FF 0x40000000 /* Filtering Fail */
+#define RD_FL 0x3fff0000 /* Frame Length */
+#define RD_ES 0x00008000 /* Error Summary */
+#define RD_LE 0x00004000 /* Length Error */
+#define RD_DT 0x00003000 /* Data Type */
+#define RD_RF 0x00000800 /* Runt Frame */
+#define RD_MF 0x00000400 /* Multicast Frame */
+#define RD_FS 0x00000200 /* First Descriptor */
+#define RD_LS 0x00000100 /* Last Descriptor */
+#define RD_TL 0x00000080 /* Frame Too Long */
+#define RD_CS 0x00000040 /* Collision Seen */
+#define RD_FT 0x00000020 /* Frame Type */
+#define RD_RJ 0x00000010 /* Receive Watchdog */
+#define RD_RE 0x00000008 /* Report on MII Error */
+#define RD_DB 0x00000004 /* Dribbling Bit */
+#define RD_CE 0x00000002 /* CRC Error */
+#define RD_OF 0x00000001 /* Overflow */
+
+#define RD_RER 0x02000000 /* Receive End Of Ring */
+#define RD_RCH 0x01000000 /* Second Address Chained */
+#define RD_RBS2 0x003ff800 /* Buffer 2 Size */
+#define RD_RBS1 0x000007ff /* Buffer 1 Size */
+
+/*
+** Transmit Descriptor Bit Summary
+*/
+#define T_OWN 0x80000000 /* Own Bit */
+#define TD_ES 0x00008000 /* Error Summary */
+#define TD_TO 0x00004000 /* Transmit Jabber Time-Out */
+#define TD_LO 0x00000800 /* Loss Of Carrier */
+#define TD_NC 0x00000400 /* No Carrier */
+#define TD_LC 0x00000200 /* Late Collision */
+#define TD_EC 0x00000100 /* Excessive Collisions */
+#define TD_HF 0x00000080 /* Heartbeat Fail */
+#define TD_CC 0x00000078 /* Collision Counter */
+#define TD_LF 0x00000004 /* Link Fail */
+#define TD_UF 0x00000002 /* Underflow Error */
+#define TD_DE 0x00000001 /* Deferred */
+
+#define TD_IC 0x80000000 /* Interrupt On Completion */
+#define TD_LS 0x40000000 /* Last Segment */
+#define TD_FS 0x20000000 /* First Segment */
+#define TD_FT1 0x10000000 /* Filtering Type */
+#define TD_SET 0x08000000 /* Setup Packet */
+#define TD_AC 0x04000000 /* Add CRC Disable */
+#define TD_TER 0x02000000 /* Transmit End Of Ring */
+#define TD_TCH 0x01000000 /* Second Address Chained */
+#define TD_DPD 0x00800000 /* Disabled Padding */
+#define TD_FT0 0x00400000 /* Filtering Type */
+#define TD_TBS2 0x003ff800 /* Buffer 2 Size */
+#define TD_TBS1 0x000007ff /* Buffer 1 Size */
+
+#define PERFECT_F 0x00000000
+#define HASH_F TD_FT0
+#define INVERSE_F TD_FT1
+#define HASH_O_F (TD_FT1 | TD_F0)
+
+/*
+** Media / mode state machine definitions
+** User selectable:
+*/
+#define TP 0x0040 /* 10Base-T (now equiv to _10Mb) */
+#define TP_NW 0x0002 /* 10Base-T with Nway */
+#define BNC 0x0004 /* Thinwire */
+#define AUI 0x0008 /* Thickwire */
+#define BNC_AUI 0x0010 /* BNC/AUI on DC21040 indistinguishable */
+#define _10Mb 0x0040 /* 10Mb/s Ethernet */
+#define _100Mb 0x0080 /* 100Mb/s Ethernet */
+#define AUTO 0x4000 /* Auto sense the media or speed */
+
+/*
+** Internal states
+*/
+#define NC 0x0000 /* No Connection */
+#define ANS 0x0020 /* Intermediate AutoNegotiation State */
+#define SPD_DET 0x0100 /* Parallel speed detection */
+#define INIT 0x0200 /* Initial state */
+#define EXT_SIA 0x0400 /* External SIA for motherboard chip */
+#define ANS_SUSPECT 0x0802 /* Suspect the ANS (TP) port is down */
+#define TP_SUSPECT 0x0803 /* Suspect the TP port is down */
+#define BNC_AUI_SUSPECT 0x0804 /* Suspect the BNC or AUI port is down */
+#define EXT_SIA_SUSPECT 0x0805 /* Suspect the EXT SIA port is down */
+#define BNC_SUSPECT 0x0806 /* Suspect the BNC port is down */
+#define AUI_SUSPECT 0x0807 /* Suspect the AUI port is down */
+#define MII 0x1000 /* MII on the 21143 */
+
+#define TIMER_CB 0x80000000 /* Timer callback detection */
+
+/*
+** DE4X5 DEBUG Options
+*/
+#define DEBUG_NONE 0x0000 /* No DEBUG messages */
+#define DEBUG_VERSION 0x0001 /* Print version message */
+#define DEBUG_MEDIA 0x0002 /* Print media messages */
+#define DEBUG_TX 0x0004 /* Print TX (queue_pkt) messages */
+#define DEBUG_RX 0x0008 /* Print RX (de4x5_rx) messages */
+#define DEBUG_SROM 0x0010 /* Print SROM messages */
+#define DEBUG_MII 0x0020 /* Print MII messages */
+#define DEBUG_OPEN 0x0040 /* Print de4x5_open() messages */
+#define DEBUG_CLOSE 0x0080 /* Print de4x5_close() messages */
+#define DEBUG_PCICFG 0x0100
+#define DEBUG_ALL 0x01ff
+
+/*
+** Miscellaneous
+*/
+#define PCI 0
+#define EISA 1
+
+#define HASH_TABLE_LEN 512 /* Bits */
+#define HASH_BITS 0x01ff /* 9 LS bits */
+
+#define SETUP_FRAME_LEN 192 /* Bytes */
+#define IMPERF_PA_OFFSET 156 /* Bytes */
+
+#define POLL_DEMAND 1
+
+#define LOST_MEDIA_THRESHOLD 3
+
+#define MASK_INTERRUPTS 1
+#define UNMASK_INTERRUPTS 0
+
+#define DE4X5_STRLEN 8
+
+#define DE4X5_INIT 0 /* Initialisation time */
+#define DE4X5_RUN 1 /* Run time */
+
+#define DE4X5_SAVE_STATE 0
+#define DE4X5_RESTORE_STATE 1
+
+/*
+** Address Filtering Modes
+*/
+#define PERFECT 0 /* 16 perfect physical addresses */
+#define HASH_PERF 1 /* 1 perfect, 512 multicast addresses */
+#define PERFECT_REJ 2 /* Reject 16 perfect physical addresses */
+#define ALL_HASH 3 /* Hashes all physical & multicast addrs */
+
+#define ALL 0 /* Clear out all the setup frame */
+#define PHYS_ADDR_ONLY 1 /* Update the physical address only */
+
+/*
+** Booleans
+*/
+#define NO 0
+#define FALSE 0
+
+#define YES ~0
+#define TRUE ~0
+
+/*
+** Adapter state
+*/
+#define INITIALISED 0 /* After h/w initialised and mem alloc'd */
+#define CLOSED 1 /* Ready for opening */
+#define OPEN 2 /* Running */
+
+/*
+** Various wait times
+*/
+#define PDET_LINK_WAIT 1200 /* msecs to wait for link detect bits */
+#define ANS_FINISH_WAIT 1000 /* msecs to wait for link detect bits */
+
+/*
+** IEEE OUIs for various PHY vendor/chip combos - Reg 2 values only. Since
+** the vendors seem split 50-50 on how to calculate the OUI register values
+** anyway, just reading Reg2 seems reasonable for now [see de4x5_get_oui()].
+*/
+#define NATIONAL_TX 0x2000
+#define BROADCOM_T4 0x03e0
+#define SEEQ_T4 0x0016
+#define CYPRESS_T4 0x0014
+
+/*
+** Speed Selection stuff
+*/
+#define SET_10Mb {\
+ if ((lp->phy[lp->active].id) && (!lp->useSROM || lp->useMII)) {\
+ omr = inl(DE4X5_OMR) & ~(OMR_TTM | OMR_PCS | OMR_SCR | OMR_FDX);\
+ if ((lp->tmp != MII_SR_ASSC) || (lp->autosense != AUTO)) {\
+ mii_wr(MII_CR_10|(lp->fdx?MII_CR_FDM:0), MII_CR, lp->phy[lp->active].addr, DE4X5_MII);\
+ }\
+ omr |= ((lp->fdx ? OMR_FDX : 0) | OMR_TTM);\
+ outl(omr, DE4X5_OMR);\
+ if (!lp->useSROM) lp->cache.gep = 0;\
+ } else if (lp->useSROM && !lp->useMII) {\
+ omr = (inl(DE4X5_OMR) & ~(OMR_PS | OMR_HBD | OMR_TTM | OMR_PCS | OMR_SCR | OMR_FDX));\
+ omr |= (lp->fdx ? OMR_FDX : 0);\
+ outl(omr | (lp->infoblock_csr6 & ~(OMR_SCR | OMR_HBD)), DE4X5_OMR);\
+ } else {\
+ omr = (inl(DE4X5_OMR) & ~(OMR_PS | OMR_HBD | OMR_TTM | OMR_PCS | OMR_SCR | OMR_FDX));\
+ omr |= (lp->fdx ? OMR_FDX : 0);\
+ outl(omr | OMR_SDP | OMR_TTM, DE4X5_OMR);\
+ lp->cache.gep = (lp->fdx ? 0 : GEP_FDXD);\
+ gep_wr(lp->cache.gep, dev);\
+ }\
+}
+
+#define SET_100Mb {\
+ if ((lp->phy[lp->active].id) && (!lp->useSROM || lp->useMII)) {\
+ int fdx=0;\
+ if (lp->phy[lp->active].id == NATIONAL_TX) {\
+ mii_wr(mii_rd(0x18, lp->phy[lp->active].addr, DE4X5_MII) & ~0x2000,\
+ 0x18, lp->phy[lp->active].addr, DE4X5_MII);\
+ }\
+ omr = inl(DE4X5_OMR) & ~(OMR_TTM | OMR_PCS | OMR_SCR | OMR_FDX);\
+ sr = mii_rd(MII_SR, lp->phy[lp->active].addr, DE4X5_MII);\
+ if (!(sr & MII_ANA_T4AM) && lp->fdx) fdx=1;\
+ if ((lp->tmp != MII_SR_ASSC) || (lp->autosense != AUTO)) {\
+ mii_wr(MII_CR_100|(fdx?MII_CR_FDM:0), MII_CR, lp->phy[lp->active].addr, DE4X5_MII);\
+ }\
+ if (fdx) omr |= OMR_FDX;\
+ outl(omr, DE4X5_OMR);\
+ if (!lp->useSROM) lp->cache.gep = 0;\
+ } else if (lp->useSROM && !lp->useMII) {\
+ omr = (inl(DE4X5_OMR) & ~(OMR_PS | OMR_HBD | OMR_TTM | OMR_PCS | OMR_SCR | OMR_FDX));\
+ omr |= (lp->fdx ? OMR_FDX : 0);\
+ outl(omr | lp->infoblock_csr6, DE4X5_OMR);\
+ } else {\
+ omr = (inl(DE4X5_OMR) & ~(OMR_PS | OMR_HBD | OMR_TTM | OMR_PCS | OMR_SCR | OMR_FDX));\
+ omr |= (lp->fdx ? OMR_FDX : 0);\
+ outl(omr | OMR_SDP | OMR_PS | OMR_HBD | OMR_PCS | OMR_SCR, DE4X5_OMR);\
+ lp->cache.gep = (lp->fdx ? 0 : GEP_FDXD) | GEP_MODE;\
+ gep_wr(lp->cache.gep, dev);\
+ }\
+}
+
+/* FIX ME so I don't jam 10Mb networks */
+#define SET_100Mb_PDET {\
+ if ((lp->phy[lp->active].id) && (!lp->useSROM || lp->useMII)) {\
+ mii_wr(MII_CR_100|MII_CR_ASSE, MII_CR, lp->phy[lp->active].addr, DE4X5_MII);\
+ omr = (inl(DE4X5_OMR) & ~(OMR_TTM | OMR_PCS | OMR_SCR | OMR_FDX));\
+ outl(omr, DE4X5_OMR);\
+ } else if (lp->useSROM && !lp->useMII) {\
+ omr = (inl(DE4X5_OMR) & ~(OMR_TTM | OMR_PCS | OMR_SCR | OMR_FDX));\
+ outl(omr, DE4X5_OMR);\
+ } else {\
+ omr = (inl(DE4X5_OMR) & ~(OMR_PS | OMR_HBD | OMR_TTM | OMR_PCS | OMR_SCR | OMR_FDX));\
+ outl(omr | OMR_SDP | OMR_PS | OMR_HBD | OMR_PCS, DE4X5_OMR);\
+ lp->cache.gep = (GEP_FDXD | GEP_MODE);\
+ gep_wr(lp->cache.gep, dev);\
+ }\
+}
+
+/*
+** Include the IOCTL stuff
+*/
+#include <linux/sockios.h>
+
+#define DE4X5IOCTL SIOCDEVPRIVATE
+
+struct de4x5_ioctl {
+ unsigned short cmd; /* Command to run */
+ unsigned short len; /* Length of the data buffer */
+ unsigned char __user *data; /* Pointer to the data buffer */
+};
+
+/*
+** Recognised commands for the driver
+*/
+#define DE4X5_GET_HWADDR 0x01 /* Get the hardware address */
+#define DE4X5_SET_HWADDR 0x02 /* Set the hardware address */
+#define DE4X5_SET_PROM 0x03 /* Set Promiscuous Mode */
+#define DE4X5_CLR_PROM 0x04 /* Clear Promiscuous Mode */
+#define DE4X5_SAY_BOO 0x05 /* Say "Boo!" to the kernel log file */
+#define DE4X5_GET_MCA 0x06 /* Get a multicast address */
+#define DE4X5_SET_MCA 0x07 /* Set a multicast address */
+#define DE4X5_CLR_MCA 0x08 /* Clear a multicast address */
+#define DE4X5_MCA_EN 0x09 /* Enable a multicast address group */
+#define DE4X5_GET_STATS 0x0a /* Get the driver statistics */
+#define DE4X5_CLR_STATS 0x0b /* Zero out the driver statistics */
+#define DE4X5_GET_OMR 0x0c /* Get the OMR Register contents */
+#define DE4X5_SET_OMR 0x0d /* Set the OMR Register contents */
+#define DE4X5_GET_REG 0x0e /* Get the DE4X5 Registers */
+
+#define MOTO_SROM_BUG ((lp->active == 8) && (((le32_to_cpu(get_unaligned(((s32 *)dev->dev_addr))))&0x00ffffff)==0x3e0008))
diff --git a/drivers/net/tulip/dmfe.c b/drivers/net/tulip/dmfe.c
new file mode 100644
index 000000000000..e25f33df223e
--- /dev/null
+++ b/drivers/net/tulip/dmfe.c
@@ -0,0 +1,2066 @@
+/*
+ A Davicom DM9102/DM9102A/DM9102A+DM9801/DM9102A+DM9802 NIC fast
+ ethernet driver for Linux.
+ Copyright (C) 1997 Sten Wang
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ DAVICOM Web-Site: www.davicom.com.tw
+
+ Author: Sten Wang, 886-3-5798797-8517, E-mail: sten_wang@davicom.com.tw
+ Maintainer: Tobias Ringstrom <tori@unhappy.mine.nu>
+
+ (C)Copyright 1997-1998 DAVICOM Semiconductor,Inc. All Rights Reserved.
+
+ Marcelo Tosatti <marcelo@conectiva.com.br> :
+ Made it compile in 2.3 (device to net_device)
+
+ Alan Cox <alan@redhat.com> :
+ Cleaned up for kernel merge.
+ Removed the back compatibility support
+ Reformatted, fixing spelling etc as I went
+ Removed IRQ 0-15 assumption
+
+ Jeff Garzik <jgarzik@pobox.com> :
+ Updated to use new PCI driver API.
+ Resource usage cleanups.
+ Report driver version to user.
+
+ Tobias Ringstrom <tori@unhappy.mine.nu> :
+ Cleaned up and added SMP safety. Thanks go to Jeff Garzik,
+ Andrew Morton and Frank Davis for the SMP safety fixes.
+
+ Vojtech Pavlik <vojtech@suse.cz> :
+ Cleaned up pointer arithmetics.
+ Fixed a lot of 64bit issues.
+ Cleaned up printk()s a bit.
+ Fixed some obvious big endian problems.
+
+ Tobias Ringstrom <tori@unhappy.mine.nu> :
+ Use time_after for jiffies calculation. Added ethtool
+ support. Updated PCI resource allocation. Do not
+ forget to unmap PCI mapped skbs.
+
+ Alan Cox <alan@redhat.com>
+ Added new PCI identifiers provided by Clear Zhang at ALi
+ for their 1563 ethernet device.
+
+ TODO
+
+ Implement pci_driver::suspend() and pci_driver::resume()
+ power management methods.
+
+ Check on 64 bit boxes.
+ Check and fix on big endian boxes.
+
+ Test and make sure PCI latency is now correct for all cases.
+*/
+
+#define DRV_NAME "dmfe"
+#define DRV_VERSION "1.36.4"
+#define DRV_RELDATE "2002-01-17"
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/skbuff.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/crc32.h>
+#include <linux/bitops.h>
+
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <asm/uaccess.h>
+#include <asm/irq.h>
+
+
+/* Board/System/Debug information/definition ---------------- */
+#define PCI_DM9132_ID 0x91321282 /* Davicom DM9132 ID */
+#define PCI_DM9102_ID 0x91021282 /* Davicom DM9102 ID */
+#define PCI_DM9100_ID 0x91001282 /* Davicom DM9100 ID */
+#define PCI_DM9009_ID 0x90091282 /* Davicom DM9009 ID */
+
+#define DM9102_IO_SIZE 0x80
+#define DM9102A_IO_SIZE 0x100
+#define TX_MAX_SEND_CNT 0x1 /* Maximum tx packet per time */
+#define TX_DESC_CNT 0x10 /* Allocated Tx descriptors */
+#define RX_DESC_CNT 0x20 /* Allocated Rx descriptors */
+#define TX_FREE_DESC_CNT (TX_DESC_CNT - 2) /* Max TX packet count */
+#define TX_WAKE_DESC_CNT (TX_DESC_CNT - 3) /* TX wakeup count */
+#define DESC_ALL_CNT (TX_DESC_CNT + RX_DESC_CNT)
+#define TX_BUF_ALLOC 0x600
+#define RX_ALLOC_SIZE 0x620
+#define DM910X_RESET 1
+#define CR0_DEFAULT 0x00E00000 /* TX & RX burst mode */
+#define CR6_DEFAULT 0x00080000 /* HD */
+#define CR7_DEFAULT 0x180c1
+#define CR15_DEFAULT 0x06 /* TxJabber RxWatchdog */
+#define TDES0_ERR_MASK 0x4302 /* TXJT, LC, EC, FUE */
+#define MAX_PACKET_SIZE 1514
+#define DMFE_MAX_MULTICAST 14
+#define RX_COPY_SIZE 100
+#define MAX_CHECK_PACKET 0x8000
+#define DM9801_NOISE_FLOOR 8
+#define DM9802_NOISE_FLOOR 5
+
+#define DMFE_10MHF 0
+#define DMFE_100MHF 1
+#define DMFE_10MFD 4
+#define DMFE_100MFD 5
+#define DMFE_AUTO 8
+#define DMFE_1M_HPNA 0x10
+
+#define DMFE_TXTH_72 0x400000 /* TX TH 72 byte */
+#define DMFE_TXTH_96 0x404000 /* TX TH 96 byte */
+#define DMFE_TXTH_128 0x0000 /* TX TH 128 byte */
+#define DMFE_TXTH_256 0x4000 /* TX TH 256 byte */
+#define DMFE_TXTH_512 0x8000 /* TX TH 512 byte */
+#define DMFE_TXTH_1K 0xC000 /* TX TH 1K byte */
+
+#define DMFE_TIMER_WUT (jiffies + HZ * 1)/* timer wakeup time : 1 second */
+#define DMFE_TX_TIMEOUT ((3*HZ)/2) /* tx packet time-out time 1.5 s" */
+#define DMFE_TX_KICK (HZ/2) /* tx packet Kick-out time 0.5 s" */
+
+#define DMFE_DBUG(dbug_now, msg, value) if (dmfe_debug || (dbug_now)) printk(KERN_ERR DRV_NAME ": %s %lx\n", (msg), (long) (value))
+
+#define SHOW_MEDIA_TYPE(mode) printk(KERN_ERR DRV_NAME ": Change Speed to %sMhz %s duplex\n",mode & 1 ?"100":"10", mode & 4 ? "full":"half");
+
+
+/* CR9 definition: SROM/MII */
+#define CR9_SROM_READ 0x4800
+#define CR9_SRCS 0x1
+#define CR9_SRCLK 0x2
+#define CR9_CRDOUT 0x8
+#define SROM_DATA_0 0x0
+#define SROM_DATA_1 0x4
+#define PHY_DATA_1 0x20000
+#define PHY_DATA_0 0x00000
+#define MDCLKH 0x10000
+
+#define PHY_POWER_DOWN 0x800
+
+#define SROM_V41_CODE 0x14
+
+#define SROM_CLK_WRITE(data, ioaddr) outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr);udelay(5);outl(data|CR9_SROM_READ|CR9_SRCS|CR9_SRCLK,ioaddr);udelay(5);outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr);udelay(5);
+
+#define __CHK_IO_SIZE(pci_id, dev_rev) ( ((pci_id)==PCI_DM9132_ID) || ((dev_rev) >= 0x02000030) ) ? DM9102A_IO_SIZE: DM9102_IO_SIZE
+#define CHK_IO_SIZE(pci_dev, dev_rev) __CHK_IO_SIZE(((pci_dev)->device << 16) | (pci_dev)->vendor, dev_rev)
+
+/* Sten Check */
+#define DEVICE net_device
+
+/* Structure/enum declaration ------------------------------- */
+struct tx_desc {
+ u32 tdes0, tdes1, tdes2, tdes3; /* Data for the card */
+ char *tx_buf_ptr; /* Data for us */
+ struct tx_desc *next_tx_desc;
+} __attribute__(( aligned(32) ));
+
+struct rx_desc {
+ u32 rdes0, rdes1, rdes2, rdes3; /* Data for the card */
+ struct sk_buff *rx_skb_ptr; /* Data for us */
+ struct rx_desc *next_rx_desc;
+} __attribute__(( aligned(32) ));
+
+struct dmfe_board_info {
+ u32 chip_id; /* Chip vendor/Device ID */
+ u32 chip_revision; /* Chip revision */
+ struct DEVICE *next_dev; /* next device */
+ struct pci_dev *pdev; /* PCI device */
+ spinlock_t lock;
+
+ long ioaddr; /* I/O base address */
+ u32 cr0_data;
+ u32 cr5_data;
+ u32 cr6_data;
+ u32 cr7_data;
+ u32 cr15_data;
+
+ /* pointer for memory physical address */
+ dma_addr_t buf_pool_dma_ptr; /* Tx buffer pool memory */
+ dma_addr_t buf_pool_dma_start; /* Tx buffer pool align dword */
+ dma_addr_t desc_pool_dma_ptr; /* descriptor pool memory */
+ dma_addr_t first_tx_desc_dma;
+ dma_addr_t first_rx_desc_dma;
+
+ /* descriptor pointer */
+ unsigned char *buf_pool_ptr; /* Tx buffer pool memory */
+ unsigned char *buf_pool_start; /* Tx buffer pool align dword */
+ unsigned char *desc_pool_ptr; /* descriptor pool memory */
+ struct tx_desc *first_tx_desc;
+ struct tx_desc *tx_insert_ptr;
+ struct tx_desc *tx_remove_ptr;
+ struct rx_desc *first_rx_desc;
+ struct rx_desc *rx_insert_ptr;
+ struct rx_desc *rx_ready_ptr; /* packet come pointer */
+ unsigned long tx_packet_cnt; /* transmitted packet count */
+ unsigned long tx_queue_cnt; /* wait to send packet count */
+ unsigned long rx_avail_cnt; /* available rx descriptor count */
+ unsigned long interval_rx_cnt; /* rx packet count a callback time */
+
+ u16 HPNA_command; /* For HPNA register 16 */
+ u16 HPNA_timer; /* For HPNA remote device check */
+ u16 dbug_cnt;
+ u16 NIC_capability; /* NIC media capability */
+ u16 PHY_reg4; /* Saved Phyxcer register 4 value */
+
+ u8 HPNA_present; /* 0:none, 1:DM9801, 2:DM9802 */
+ u8 chip_type; /* Keep DM9102A chip type */
+ u8 media_mode; /* user specify media mode */
+ u8 op_mode; /* real work media mode */
+ u8 phy_addr;
+ u8 link_failed; /* Ever link failed */
+ u8 wait_reset; /* Hardware failed, need to reset */
+ u8 dm910x_chk_mode; /* Operating mode check */
+ u8 first_in_callback; /* Flag to record state */
+ struct timer_list timer;
+
+ /* System defined statistic counter */
+ struct net_device_stats stats;
+
+ /* Driver defined statistic counter */
+ unsigned long tx_fifo_underrun;
+ unsigned long tx_loss_carrier;
+ unsigned long tx_no_carrier;
+ unsigned long tx_late_collision;
+ unsigned long tx_excessive_collision;
+ unsigned long tx_jabber_timeout;
+ unsigned long reset_count;
+ unsigned long reset_cr8;
+ unsigned long reset_fatal;
+ unsigned long reset_TXtimeout;
+
+ /* NIC SROM data */
+ unsigned char srom[128];
+};
+
+enum dmfe_offsets {
+ DCR0 = 0x00, DCR1 = 0x08, DCR2 = 0x10, DCR3 = 0x18, DCR4 = 0x20,
+ DCR5 = 0x28, DCR6 = 0x30, DCR7 = 0x38, DCR8 = 0x40, DCR9 = 0x48,
+ DCR10 = 0x50, DCR11 = 0x58, DCR12 = 0x60, DCR13 = 0x68, DCR14 = 0x70,
+ DCR15 = 0x78
+};
+
+enum dmfe_CR6_bits {
+ CR6_RXSC = 0x2, CR6_PBF = 0x8, CR6_PM = 0x40, CR6_PAM = 0x80,
+ CR6_FDM = 0x200, CR6_TXSC = 0x2000, CR6_STI = 0x100000,
+ CR6_SFT = 0x200000, CR6_RXA = 0x40000000, CR6_NO_PURGE = 0x20000000
+};
+
+/* Global variable declaration ----------------------------- */
+static int __devinitdata printed_version;
+static char version[] __devinitdata =
+ KERN_INFO DRV_NAME ": Davicom DM9xxx net driver, version "
+ DRV_VERSION " (" DRV_RELDATE ")\n";
+
+static int dmfe_debug;
+static unsigned char dmfe_media_mode = DMFE_AUTO;
+static u32 dmfe_cr6_user_set;
+
+/* For module input parameter */
+static int debug;
+static u32 cr6set;
+static unsigned char mode = 8;
+static u8 chkmode = 1;
+static u8 HPNA_mode; /* Default: Low Power/High Speed */
+static u8 HPNA_rx_cmd; /* Default: Disable Rx remote command */
+static u8 HPNA_tx_cmd; /* Default: Don't issue remote command */
+static u8 HPNA_NoiseFloor; /* Default: HPNA NoiseFloor */
+static u8 SF_mode; /* Special Function: 1:VLAN, 2:RX Flow Control
+ 4: TX pause packet */
+
+
+/* function declaration ------------------------------------- */
+static int dmfe_open(struct DEVICE *);
+static int dmfe_start_xmit(struct sk_buff *, struct DEVICE *);
+static int dmfe_stop(struct DEVICE *);
+static struct net_device_stats * dmfe_get_stats(struct DEVICE *);
+static void dmfe_set_filter_mode(struct DEVICE *);
+static struct ethtool_ops netdev_ethtool_ops;
+static u16 read_srom_word(long ,int);
+static irqreturn_t dmfe_interrupt(int , void *, struct pt_regs *);
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void poll_dmfe (struct net_device *dev);
+#endif
+static void dmfe_descriptor_init(struct dmfe_board_info *, unsigned long);
+static void allocate_rx_buffer(struct dmfe_board_info *);
+static void update_cr6(u32, unsigned long);
+static void send_filter_frame(struct DEVICE * ,int);
+static void dm9132_id_table(struct DEVICE * ,int);
+static u16 phy_read(unsigned long, u8, u8, u32);
+static void phy_write(unsigned long, u8, u8, u16, u32);
+static void phy_write_1bit(unsigned long, u32);
+static u16 phy_read_1bit(unsigned long);
+static u8 dmfe_sense_speed(struct dmfe_board_info *);
+static void dmfe_process_mode(struct dmfe_board_info *);
+static void dmfe_timer(unsigned long);
+static inline u32 cal_CRC(unsigned char *, unsigned int, u8);
+static void dmfe_rx_packet(struct DEVICE *, struct dmfe_board_info *);
+static void dmfe_free_tx_pkt(struct DEVICE *, struct dmfe_board_info *);
+static void dmfe_reuse_skb(struct dmfe_board_info *, struct sk_buff *);
+static void dmfe_dynamic_reset(struct DEVICE *);
+static void dmfe_free_rxbuffer(struct dmfe_board_info *);
+static void dmfe_init_dm910x(struct DEVICE *);
+static void dmfe_parse_srom(struct dmfe_board_info *);
+static void dmfe_program_DM9801(struct dmfe_board_info *, int);
+static void dmfe_program_DM9802(struct dmfe_board_info *);
+static void dmfe_HPNA_remote_cmd_chk(struct dmfe_board_info * );
+static void dmfe_set_phyxcer(struct dmfe_board_info *);
+
+/* DM910X network baord routine ---------------------------- */
+
+/*
+ * Search DM910X board ,allocate space and register it
+ */
+
+static int __devinit dmfe_init_one (struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ struct dmfe_board_info *db; /* board information structure */
+ struct net_device *dev;
+ u32 dev_rev, pci_pmr;
+ int i, err;
+
+ DMFE_DBUG(0, "dmfe_init_one()", 0);
+
+ if (!printed_version++)
+ printk(version);
+
+ /* Init network device */
+ dev = alloc_etherdev(sizeof(*db));
+ if (dev == NULL)
+ return -ENOMEM;
+ SET_MODULE_OWNER(dev);
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+ if (pci_set_dma_mask(pdev, 0xffffffff)) {
+ printk(KERN_WARNING DRV_NAME ": 32-bit PCI DMA not available.\n");
+ err = -ENODEV;
+ goto err_out_free;
+ }
+
+ /* Enable Master/IO access, Disable memory access */
+ err = pci_enable_device(pdev);
+ if (err)
+ goto err_out_free;
+
+ if (!pci_resource_start(pdev, 0)) {
+ printk(KERN_ERR DRV_NAME ": I/O base is zero\n");
+ err = -ENODEV;
+ goto err_out_disable;
+ }
+
+ /* Read Chip revision */
+ pci_read_config_dword(pdev, PCI_REVISION_ID, &dev_rev);
+
+ if (pci_resource_len(pdev, 0) < (CHK_IO_SIZE(pdev, dev_rev)) ) {
+ printk(KERN_ERR DRV_NAME ": Allocated I/O size too small\n");
+ err = -ENODEV;
+ goto err_out_disable;
+ }
+
+#if 0 /* pci_{enable_device,set_master} sets minimum latency for us now */
+
+ /* Set Latency Timer 80h */
+ /* FIXME: setting values > 32 breaks some SiS 559x stuff.
+ Need a PCI quirk.. */
+
+ pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x80);
+#endif
+
+ if (pci_request_regions(pdev, DRV_NAME)) {
+ printk(KERN_ERR DRV_NAME ": Failed to request PCI regions\n");
+ err = -ENODEV;
+ goto err_out_disable;
+ }
+
+ /* Init system & device */
+ db = netdev_priv(dev);
+
+ /* Allocate Tx/Rx descriptor memory */
+ db->desc_pool_ptr = pci_alloc_consistent(pdev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20, &db->desc_pool_dma_ptr);
+ db->buf_pool_ptr = pci_alloc_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4, &db->buf_pool_dma_ptr);
+
+ db->first_tx_desc = (struct tx_desc *) db->desc_pool_ptr;
+ db->first_tx_desc_dma = db->desc_pool_dma_ptr;
+ db->buf_pool_start = db->buf_pool_ptr;
+ db->buf_pool_dma_start = db->buf_pool_dma_ptr;
+
+ db->chip_id = ent->driver_data;
+ db->ioaddr = pci_resource_start(pdev, 0);
+ db->chip_revision = dev_rev;
+
+ db->pdev = pdev;
+
+ dev->base_addr = db->ioaddr;
+ dev->irq = pdev->irq;
+ pci_set_drvdata(pdev, dev);
+ dev->open = &dmfe_open;
+ dev->hard_start_xmit = &dmfe_start_xmit;
+ dev->stop = &dmfe_stop;
+ dev->get_stats = &dmfe_get_stats;
+ dev->set_multicast_list = &dmfe_set_filter_mode;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = &poll_dmfe;
+#endif
+ dev->ethtool_ops = &netdev_ethtool_ops;
+ spin_lock_init(&db->lock);
+
+ pci_read_config_dword(pdev, 0x50, &pci_pmr);
+ pci_pmr &= 0x70000;
+ if ( (pci_pmr == 0x10000) && (dev_rev == 0x02000031) )
+ db->chip_type = 1; /* DM9102A E3 */
+ else
+ db->chip_type = 0;
+
+ /* read 64 word srom data */
+ for (i = 0; i < 64; i++)
+ ((u16 *) db->srom)[i] = cpu_to_le16(read_srom_word(db->ioaddr, i));
+
+ /* Set Node address */
+ for (i = 0; i < 6; i++)
+ dev->dev_addr[i] = db->srom[20 + i];
+
+ err = register_netdev (dev);
+ if (err)
+ goto err_out_res;
+
+ printk(KERN_INFO "%s: Davicom DM%04lx at pci%s,",
+ dev->name,
+ ent->driver_data >> 16,
+ pci_name(pdev));
+ for (i = 0; i < 6; i++)
+ printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]);
+ printk(", irq %d.\n", dev->irq);
+
+ pci_set_master(pdev);
+
+ return 0;
+
+err_out_res:
+ pci_release_regions(pdev);
+err_out_disable:
+ pci_disable_device(pdev);
+err_out_free:
+ pci_set_drvdata(pdev, NULL);
+ free_netdev(dev);
+
+ return err;
+}
+
+
+static void __devexit dmfe_remove_one (struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct dmfe_board_info *db = netdev_priv(dev);
+
+ DMFE_DBUG(0, "dmfe_remove_one()", 0);
+
+ if (dev) {
+ pci_free_consistent(db->pdev, sizeof(struct tx_desc) *
+ DESC_ALL_CNT + 0x20, db->desc_pool_ptr,
+ db->desc_pool_dma_ptr);
+ pci_free_consistent(db->pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4,
+ db->buf_pool_ptr, db->buf_pool_dma_ptr);
+ unregister_netdev(dev);
+ pci_release_regions(pdev);
+ free_netdev(dev); /* free board information */
+ pci_set_drvdata(pdev, NULL);
+ }
+
+ DMFE_DBUG(0, "dmfe_remove_one() exit", 0);
+}
+
+
+/*
+ * Open the interface.
+ * The interface is opened whenever "ifconfig" actives it.
+ */
+
+static int dmfe_open(struct DEVICE *dev)
+{
+ int ret;
+ struct dmfe_board_info *db = netdev_priv(dev);
+
+ DMFE_DBUG(0, "dmfe_open", 0);
+
+ ret = request_irq(dev->irq, &dmfe_interrupt, SA_SHIRQ, dev->name, dev);
+ if (ret)
+ return ret;
+
+ /* system variable init */
+ db->cr6_data = CR6_DEFAULT | dmfe_cr6_user_set;
+ db->tx_packet_cnt = 0;
+ db->tx_queue_cnt = 0;
+ db->rx_avail_cnt = 0;
+ db->link_failed = 1;
+ db->wait_reset = 0;
+
+ db->first_in_callback = 0;
+ db->NIC_capability = 0xf; /* All capability*/
+ db->PHY_reg4 = 0x1e0;
+
+ /* CR6 operation mode decision */
+ if ( !chkmode || (db->chip_id == PCI_DM9132_ID) ||
+ (db->chip_revision >= 0x02000030) ) {
+ db->cr6_data |= DMFE_TXTH_256;
+ db->cr0_data = CR0_DEFAULT;
+ db->dm910x_chk_mode=4; /* Enter the normal mode */
+ } else {
+ db->cr6_data |= CR6_SFT; /* Store & Forward mode */
+ db->cr0_data = 0;
+ db->dm910x_chk_mode = 1; /* Enter the check mode */
+ }
+
+ /* Initilize DM910X board */
+ dmfe_init_dm910x(dev);
+
+ /* Active System Interface */
+ netif_wake_queue(dev);
+
+ /* set and active a timer process */
+ init_timer(&db->timer);
+ db->timer.expires = DMFE_TIMER_WUT + HZ * 2;
+ db->timer.data = (unsigned long)dev;
+ db->timer.function = &dmfe_timer;
+ add_timer(&db->timer);
+
+ return 0;
+}
+
+
+/* Initilize DM910X board
+ * Reset DM910X board
+ * Initilize TX/Rx descriptor chain structure
+ * Send the set-up frame
+ * Enable Tx/Rx machine
+ */
+
+static void dmfe_init_dm910x(struct DEVICE *dev)
+{
+ struct dmfe_board_info *db = netdev_priv(dev);
+ unsigned long ioaddr = db->ioaddr;
+
+ DMFE_DBUG(0, "dmfe_init_dm910x()", 0);
+
+ /* Reset DM910x MAC controller */
+ outl(DM910X_RESET, ioaddr + DCR0); /* RESET MAC */
+ udelay(100);
+ outl(db->cr0_data, ioaddr + DCR0);
+ udelay(5);
+
+ /* Phy addr : DM910(A)2/DM9132/9801, phy address = 1 */
+ db->phy_addr = 1;
+
+ /* Parser SROM and media mode */
+ dmfe_parse_srom(db);
+ db->media_mode = dmfe_media_mode;
+
+ /* RESET Phyxcer Chip by GPR port bit 7 */
+ outl(0x180, ioaddr + DCR12); /* Let bit 7 output port */
+ if (db->chip_id == PCI_DM9009_ID) {
+ outl(0x80, ioaddr + DCR12); /* Issue RESET signal */
+ mdelay(300); /* Delay 300 ms */
+ }
+ outl(0x0, ioaddr + DCR12); /* Clear RESET signal */
+
+ /* Process Phyxcer Media Mode */
+ if ( !(db->media_mode & 0x10) ) /* Force 1M mode */
+ dmfe_set_phyxcer(db);
+
+ /* Media Mode Process */
+ if ( !(db->media_mode & DMFE_AUTO) )
+ db->op_mode = db->media_mode; /* Force Mode */
+
+ /* Initiliaze Transmit/Receive decriptor and CR3/4 */
+ dmfe_descriptor_init(db, ioaddr);
+
+ /* Init CR6 to program DM910x operation */
+ update_cr6(db->cr6_data, ioaddr);
+
+ /* Send setup frame */
+ if (db->chip_id == PCI_DM9132_ID)
+ dm9132_id_table(dev, dev->mc_count); /* DM9132 */
+ else
+ send_filter_frame(dev, dev->mc_count); /* DM9102/DM9102A */
+
+ /* Init CR7, interrupt active bit */
+ db->cr7_data = CR7_DEFAULT;
+ outl(db->cr7_data, ioaddr + DCR7);
+
+ /* Init CR15, Tx jabber and Rx watchdog timer */
+ outl(db->cr15_data, ioaddr + DCR15);
+
+ /* Enable DM910X Tx/Rx function */
+ db->cr6_data |= CR6_RXSC | CR6_TXSC | 0x40000;
+ update_cr6(db->cr6_data, ioaddr);
+}
+
+
+/*
+ * Hardware start transmission.
+ * Send a packet to media from the upper layer.
+ */
+
+static int dmfe_start_xmit(struct sk_buff *skb, struct DEVICE *dev)
+{
+ struct dmfe_board_info *db = netdev_priv(dev);
+ struct tx_desc *txptr;
+ unsigned long flags;
+
+ DMFE_DBUG(0, "dmfe_start_xmit", 0);
+
+ /* Resource flag check */
+ netif_stop_queue(dev);
+
+ /* Too large packet check */
+ if (skb->len > MAX_PACKET_SIZE) {
+ printk(KERN_ERR DRV_NAME ": big packet = %d\n", (u16)skb->len);
+ dev_kfree_skb(skb);
+ return 0;
+ }
+
+ spin_lock_irqsave(&db->lock, flags);
+
+ /* No Tx resource check, it never happen nromally */
+ if (db->tx_queue_cnt >= TX_FREE_DESC_CNT) {
+ spin_unlock_irqrestore(&db->lock, flags);
+ printk(KERN_ERR DRV_NAME ": No Tx resource %ld\n", db->tx_queue_cnt);
+ return 1;
+ }
+
+ /* Disable NIC interrupt */
+ outl(0, dev->base_addr + DCR7);
+
+ /* transmit this packet */
+ txptr = db->tx_insert_ptr;
+ memcpy(txptr->tx_buf_ptr, skb->data, skb->len);
+ txptr->tdes1 = cpu_to_le32(0xe1000000 | skb->len);
+
+ /* Point to next transmit free descriptor */
+ db->tx_insert_ptr = txptr->next_tx_desc;
+
+ /* Transmit Packet Process */
+ if ( (!db->tx_queue_cnt) && (db->tx_packet_cnt < TX_MAX_SEND_CNT) ) {
+ txptr->tdes0 = cpu_to_le32(0x80000000); /* Set owner bit */
+ db->tx_packet_cnt++; /* Ready to send */
+ outl(0x1, dev->base_addr + DCR1); /* Issue Tx polling */
+ dev->trans_start = jiffies; /* saved time stamp */
+ } else {
+ db->tx_queue_cnt++; /* queue TX packet */
+ outl(0x1, dev->base_addr + DCR1); /* Issue Tx polling */
+ }
+
+ /* Tx resource check */
+ if ( db->tx_queue_cnt < TX_FREE_DESC_CNT )
+ netif_wake_queue(dev);
+
+ /* Restore CR7 to enable interrupt */
+ spin_unlock_irqrestore(&db->lock, flags);
+ outl(db->cr7_data, dev->base_addr + DCR7);
+
+ /* free this SKB */
+ dev_kfree_skb(skb);
+
+ return 0;
+}
+
+
+/*
+ * Stop the interface.
+ * The interface is stopped when it is brought.
+ */
+
+static int dmfe_stop(struct DEVICE *dev)
+{
+ struct dmfe_board_info *db = netdev_priv(dev);
+ unsigned long ioaddr = dev->base_addr;
+
+ DMFE_DBUG(0, "dmfe_stop", 0);
+
+ /* disable system */
+ netif_stop_queue(dev);
+
+ /* deleted timer */
+ del_timer_sync(&db->timer);
+
+ /* Reset & stop DM910X board */
+ outl(DM910X_RESET, ioaddr + DCR0);
+ udelay(5);
+ phy_write(db->ioaddr, db->phy_addr, 0, 0x8000, db->chip_id);
+
+ /* free interrupt */
+ free_irq(dev->irq, dev);
+
+ /* free allocated rx buffer */
+ dmfe_free_rxbuffer(db);
+
+#if 0
+ /* show statistic counter */
+ printk(DRV_NAME ": FU:%lx EC:%lx LC:%lx NC:%lx LOC:%lx TXJT:%lx RESET:%lx RCR8:%lx FAL:%lx TT:%lx\n",
+ db->tx_fifo_underrun, db->tx_excessive_collision,
+ db->tx_late_collision, db->tx_no_carrier, db->tx_loss_carrier,
+ db->tx_jabber_timeout, db->reset_count, db->reset_cr8,
+ db->reset_fatal, db->reset_TXtimeout);
+#endif
+
+ return 0;
+}
+
+
+/*
+ * DM9102 insterrupt handler
+ * receive the packet to upper layer, free the transmitted packet
+ */
+
+static irqreturn_t dmfe_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct DEVICE *dev = dev_id;
+ struct dmfe_board_info *db = netdev_priv(dev);
+ unsigned long ioaddr = dev->base_addr;
+ unsigned long flags;
+
+ DMFE_DBUG(0, "dmfe_interrupt()", 0);
+
+ if (!dev) {
+ DMFE_DBUG(1, "dmfe_interrupt() without DEVICE arg", 0);
+ return IRQ_NONE;
+ }
+
+ spin_lock_irqsave(&db->lock, flags);
+
+ /* Got DM910X status */
+ db->cr5_data = inl(ioaddr + DCR5);
+ outl(db->cr5_data, ioaddr + DCR5);
+ if ( !(db->cr5_data & 0xc1) ) {
+ spin_unlock_irqrestore(&db->lock, flags);
+ return IRQ_HANDLED;
+ }
+
+ /* Disable all interrupt in CR7 to solve the interrupt edge problem */
+ outl(0, ioaddr + DCR7);
+
+ /* Check system status */
+ if (db->cr5_data & 0x2000) {
+ /* system bus error happen */
+ DMFE_DBUG(1, "System bus error happen. CR5=", db->cr5_data);
+ db->reset_fatal++;
+ db->wait_reset = 1; /* Need to RESET */
+ spin_unlock_irqrestore(&db->lock, flags);
+ return IRQ_HANDLED;
+ }
+
+ /* Received the coming packet */
+ if ( (db->cr5_data & 0x40) && db->rx_avail_cnt )
+ dmfe_rx_packet(dev, db);
+
+ /* reallocate rx descriptor buffer */
+ if (db->rx_avail_cnt<RX_DESC_CNT)
+ allocate_rx_buffer(db);
+
+ /* Free the transmitted descriptor */
+ if ( db->cr5_data & 0x01)
+ dmfe_free_tx_pkt(dev, db);
+
+ /* Mode Check */
+ if (db->dm910x_chk_mode & 0x2) {
+ db->dm910x_chk_mode = 0x4;
+ db->cr6_data |= 0x100;
+ update_cr6(db->cr6_data, db->ioaddr);
+ }
+
+ /* Restore CR7 to enable interrupt mask */
+ outl(db->cr7_data, ioaddr + DCR7);
+
+ spin_unlock_irqrestore(&db->lock, flags);
+ return IRQ_HANDLED;
+}
+
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling 'interrupt' - used by things like netconsole to send skbs
+ * without having to re-enable interrupts. It's not called while
+ * the interrupt routine is executing.
+ */
+
+static void poll_dmfe (struct net_device *dev)
+{
+ /* disable_irq here is not very nice, but with the lockless
+ interrupt handler we have no other choice. */
+ disable_irq(dev->irq);
+ dmfe_interrupt (dev->irq, dev, NULL);
+ enable_irq(dev->irq);
+}
+#endif
+
+/*
+ * Free TX resource after TX complete
+ */
+
+static void dmfe_free_tx_pkt(struct DEVICE *dev, struct dmfe_board_info * db)
+{
+ struct tx_desc *txptr;
+ unsigned long ioaddr = dev->base_addr;
+ u32 tdes0;
+
+ txptr = db->tx_remove_ptr;
+ while(db->tx_packet_cnt) {
+ tdes0 = le32_to_cpu(txptr->tdes0);
+ /* printk(DRV_NAME ": tdes0=%x\n", tdes0); */
+ if (tdes0 & 0x80000000)
+ break;
+
+ /* A packet sent completed */
+ db->tx_packet_cnt--;
+ db->stats.tx_packets++;
+
+ /* Transmit statistic counter */
+ if ( tdes0 != 0x7fffffff ) {
+ /* printk(DRV_NAME ": tdes0=%x\n", tdes0); */
+ db->stats.collisions += (tdes0 >> 3) & 0xf;
+ db->stats.tx_bytes += le32_to_cpu(txptr->tdes1) & 0x7ff;
+ if (tdes0 & TDES0_ERR_MASK) {
+ db->stats.tx_errors++;
+
+ if (tdes0 & 0x0002) { /* UnderRun */
+ db->tx_fifo_underrun++;
+ if ( !(db->cr6_data & CR6_SFT) ) {
+ db->cr6_data = db->cr6_data | CR6_SFT;
+ update_cr6(db->cr6_data, db->ioaddr);
+ }
+ }
+ if (tdes0 & 0x0100)
+ db->tx_excessive_collision++;
+ if (tdes0 & 0x0200)
+ db->tx_late_collision++;
+ if (tdes0 & 0x0400)
+ db->tx_no_carrier++;
+ if (tdes0 & 0x0800)
+ db->tx_loss_carrier++;
+ if (tdes0 & 0x4000)
+ db->tx_jabber_timeout++;
+ }
+ }
+
+ txptr = txptr->next_tx_desc;
+ }/* End of while */
+
+ /* Update TX remove pointer to next */
+ db->tx_remove_ptr = txptr;
+
+ /* Send the Tx packet in queue */
+ if ( (db->tx_packet_cnt < TX_MAX_SEND_CNT) && db->tx_queue_cnt ) {
+ txptr->tdes0 = cpu_to_le32(0x80000000); /* Set owner bit */
+ db->tx_packet_cnt++; /* Ready to send */
+ db->tx_queue_cnt--;
+ outl(0x1, ioaddr + DCR1); /* Issue Tx polling */
+ dev->trans_start = jiffies; /* saved time stamp */
+ }
+
+ /* Resource available check */
+ if ( db->tx_queue_cnt < TX_WAKE_DESC_CNT )
+ netif_wake_queue(dev); /* Active upper layer, send again */
+}
+
+
+/*
+ * Calculate the CRC valude of the Rx packet
+ * flag = 1 : return the reverse CRC (for the received packet CRC)
+ * 0 : return the normal CRC (for Hash Table index)
+ */
+
+static inline u32 cal_CRC(unsigned char * Data, unsigned int Len, u8 flag)
+{
+ u32 crc = crc32(~0, Data, Len);
+ if (flag) crc = ~crc;
+ return crc;
+}
+
+
+/*
+ * Receive the come packet and pass to upper layer
+ */
+
+static void dmfe_rx_packet(struct DEVICE *dev, struct dmfe_board_info * db)
+{
+ struct rx_desc *rxptr;
+ struct sk_buff *skb;
+ int rxlen;
+ u32 rdes0;
+
+ rxptr = db->rx_ready_ptr;
+
+ while(db->rx_avail_cnt) {
+ rdes0 = le32_to_cpu(rxptr->rdes0);
+ if (rdes0 & 0x80000000) /* packet owner check */
+ break;
+
+ db->rx_avail_cnt--;
+ db->interval_rx_cnt++;
+
+ pci_unmap_single(db->pdev, le32_to_cpu(rxptr->rdes2), RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE);
+ if ( (rdes0 & 0x300) != 0x300) {
+ /* A packet without First/Last flag */
+ /* reuse this SKB */
+ DMFE_DBUG(0, "Reuse SK buffer, rdes0", rdes0);
+ dmfe_reuse_skb(db, rxptr->rx_skb_ptr);
+ } else {
+ /* A packet with First/Last flag */
+ rxlen = ( (rdes0 >> 16) & 0x3fff) - 4;
+
+ /* error summary bit check */
+ if (rdes0 & 0x8000) {
+ /* This is a error packet */
+ //printk(DRV_NAME ": rdes0: %lx\n", rdes0);
+ db->stats.rx_errors++;
+ if (rdes0 & 1)
+ db->stats.rx_fifo_errors++;
+ if (rdes0 & 2)
+ db->stats.rx_crc_errors++;
+ if (rdes0 & 0x80)
+ db->stats.rx_length_errors++;
+ }
+
+ if ( !(rdes0 & 0x8000) ||
+ ((db->cr6_data & CR6_PM) && (rxlen>6)) ) {
+ skb = rxptr->rx_skb_ptr;
+
+ /* Received Packet CRC check need or not */
+ if ( (db->dm910x_chk_mode & 1) &&
+ (cal_CRC(skb->tail, rxlen, 1) !=
+ (*(u32 *) (skb->tail+rxlen) ))) { /* FIXME (?) */
+ /* Found a error received packet */
+ dmfe_reuse_skb(db, rxptr->rx_skb_ptr);
+ db->dm910x_chk_mode = 3;
+ } else {
+ /* Good packet, send to upper layer */
+ /* Shorst packet used new SKB */
+ if ( (rxlen < RX_COPY_SIZE) &&
+ ( (skb = dev_alloc_skb(rxlen + 2) )
+ != NULL) ) {
+ /* size less than COPY_SIZE, allocate a rxlen SKB */
+ skb->dev = dev;
+ skb_reserve(skb, 2); /* 16byte align */
+ memcpy(skb_put(skb, rxlen), rxptr->rx_skb_ptr->tail, rxlen);
+ dmfe_reuse_skb(db, rxptr->rx_skb_ptr);
+ } else {
+ skb->dev = dev;
+ skb_put(skb, rxlen);
+ }
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_rx(skb);
+ dev->last_rx = jiffies;
+ db->stats.rx_packets++;
+ db->stats.rx_bytes += rxlen;
+ }
+ } else {
+ /* Reuse SKB buffer when the packet is error */
+ DMFE_DBUG(0, "Reuse SK buffer, rdes0", rdes0);
+ dmfe_reuse_skb(db, rxptr->rx_skb_ptr);
+ }
+ }
+
+ rxptr = rxptr->next_rx_desc;
+ }
+
+ db->rx_ready_ptr = rxptr;
+}
+
+
+/*
+ * Get statistics from driver.
+ */
+
+static struct net_device_stats * dmfe_get_stats(struct DEVICE *dev)
+{
+ struct dmfe_board_info *db = netdev_priv(dev);
+
+ DMFE_DBUG(0, "dmfe_get_stats", 0);
+ return &db->stats;
+}
+
+
+/*
+ * Set DM910X multicast address
+ */
+
+static void dmfe_set_filter_mode(struct DEVICE * dev)
+{
+ struct dmfe_board_info *db = netdev_priv(dev);
+ unsigned long flags;
+
+ DMFE_DBUG(0, "dmfe_set_filter_mode()", 0);
+ spin_lock_irqsave(&db->lock, flags);
+
+ if (dev->flags & IFF_PROMISC) {
+ DMFE_DBUG(0, "Enable PROM Mode", 0);
+ db->cr6_data |= CR6_PM | CR6_PBF;
+ update_cr6(db->cr6_data, db->ioaddr);
+ spin_unlock_irqrestore(&db->lock, flags);
+ return;
+ }
+
+ if (dev->flags & IFF_ALLMULTI || dev->mc_count > DMFE_MAX_MULTICAST) {
+ DMFE_DBUG(0, "Pass all multicast address", dev->mc_count);
+ db->cr6_data &= ~(CR6_PM | CR6_PBF);
+ db->cr6_data |= CR6_PAM;
+ spin_unlock_irqrestore(&db->lock, flags);
+ return;
+ }
+
+ DMFE_DBUG(0, "Set multicast address", dev->mc_count);
+ if (db->chip_id == PCI_DM9132_ID)
+ dm9132_id_table(dev, dev->mc_count); /* DM9132 */
+ else
+ send_filter_frame(dev, dev->mc_count); /* DM9102/DM9102A */
+ spin_unlock_irqrestore(&db->lock, flags);
+}
+
+static void netdev_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ struct dmfe_board_info *np = netdev_priv(dev);
+
+ strcpy(info->driver, DRV_NAME);
+ strcpy(info->version, DRV_VERSION);
+ if (np->pdev)
+ strcpy(info->bus_info, pci_name(np->pdev));
+ else
+ sprintf(info->bus_info, "EISA 0x%lx %d",
+ dev->base_addr, dev->irq);
+}
+
+static struct ethtool_ops netdev_ethtool_ops = {
+ .get_drvinfo = netdev_get_drvinfo,
+};
+
+/*
+ * A periodic timer routine
+ * Dynamic media sense, allocate Rx buffer...
+ */
+
+static void dmfe_timer(unsigned long data)
+{
+ u32 tmp_cr8;
+ unsigned char tmp_cr12;
+ struct DEVICE *dev = (struct DEVICE *) data;
+ struct dmfe_board_info *db = netdev_priv(dev);
+ unsigned long flags;
+
+ DMFE_DBUG(0, "dmfe_timer()", 0);
+ spin_lock_irqsave(&db->lock, flags);
+
+ /* Media mode process when Link OK before enter this route */
+ if (db->first_in_callback == 0) {
+ db->first_in_callback = 1;
+ if (db->chip_type && (db->chip_id==PCI_DM9102_ID)) {
+ db->cr6_data &= ~0x40000;
+ update_cr6(db->cr6_data, db->ioaddr);
+ phy_write(db->ioaddr, db->phy_addr, 0, 0x1000, db->chip_id);
+ db->cr6_data |= 0x40000;
+ update_cr6(db->cr6_data, db->ioaddr);
+ db->timer.expires = DMFE_TIMER_WUT + HZ * 2;
+ add_timer(&db->timer);
+ spin_unlock_irqrestore(&db->lock, flags);
+ return;
+ }
+ }
+
+
+ /* Operating Mode Check */
+ if ( (db->dm910x_chk_mode & 0x1) &&
+ (db->stats.rx_packets > MAX_CHECK_PACKET) )
+ db->dm910x_chk_mode = 0x4;
+
+ /* Dynamic reset DM910X : system error or transmit time-out */
+ tmp_cr8 = inl(db->ioaddr + DCR8);
+ if ( (db->interval_rx_cnt==0) && (tmp_cr8) ) {
+ db->reset_cr8++;
+ db->wait_reset = 1;
+ }
+ db->interval_rx_cnt = 0;
+
+ /* TX polling kick monitor */
+ if ( db->tx_packet_cnt &&
+ time_after(jiffies, dev->trans_start + DMFE_TX_KICK) ) {
+ outl(0x1, dev->base_addr + DCR1); /* Tx polling again */
+
+ /* TX Timeout */
+ if ( time_after(jiffies, dev->trans_start + DMFE_TX_TIMEOUT) ) {
+ db->reset_TXtimeout++;
+ db->wait_reset = 1;
+ printk(KERN_WARNING "%s: Tx timeout - resetting\n",
+ dev->name);
+ }
+ }
+
+ if (db->wait_reset) {
+ DMFE_DBUG(0, "Dynamic Reset device", db->tx_packet_cnt);
+ db->reset_count++;
+ dmfe_dynamic_reset(dev);
+ db->first_in_callback = 0;
+ db->timer.expires = DMFE_TIMER_WUT;
+ add_timer(&db->timer);
+ spin_unlock_irqrestore(&db->lock, flags);
+ return;
+ }
+
+ /* Link status check, Dynamic media type change */
+ if (db->chip_id == PCI_DM9132_ID)
+ tmp_cr12 = inb(db->ioaddr + DCR9 + 3); /* DM9132 */
+ else
+ tmp_cr12 = inb(db->ioaddr + DCR12); /* DM9102/DM9102A */
+
+ if ( ((db->chip_id == PCI_DM9102_ID) &&
+ (db->chip_revision == 0x02000030)) ||
+ ((db->chip_id == PCI_DM9132_ID) &&
+ (db->chip_revision == 0x02000010)) ) {
+ /* DM9102A Chip */
+ if (tmp_cr12 & 2)
+ tmp_cr12 = 0x0; /* Link failed */
+ else
+ tmp_cr12 = 0x3; /* Link OK */
+ }
+
+ if ( !(tmp_cr12 & 0x3) && !db->link_failed ) {
+ /* Link Failed */
+ DMFE_DBUG(0, "Link Failed", tmp_cr12);
+ db->link_failed = 1;
+
+ /* For Force 10/100M Half/Full mode: Enable Auto-Nego mode */
+ /* AUTO or force 1M Homerun/Longrun don't need */
+ if ( !(db->media_mode & 0x38) )
+ phy_write(db->ioaddr, db->phy_addr, 0, 0x1000, db->chip_id);
+
+ /* AUTO mode, if INT phyxcer link failed, select EXT device */
+ if (db->media_mode & DMFE_AUTO) {
+ /* 10/100M link failed, used 1M Home-Net */
+ db->cr6_data|=0x00040000; /* bit18=1, MII */
+ db->cr6_data&=~0x00000200; /* bit9=0, HD mode */
+ update_cr6(db->cr6_data, db->ioaddr);
+ }
+ } else
+ if ((tmp_cr12 & 0x3) && db->link_failed) {
+ DMFE_DBUG(0, "Link link OK", tmp_cr12);
+ db->link_failed = 0;
+
+ /* Auto Sense Speed */
+ if ( (db->media_mode & DMFE_AUTO) &&
+ dmfe_sense_speed(db) )
+ db->link_failed = 1;
+ dmfe_process_mode(db);
+ /* SHOW_MEDIA_TYPE(db->op_mode); */
+ }
+
+ /* HPNA remote command check */
+ if (db->HPNA_command & 0xf00) {
+ db->HPNA_timer--;
+ if (!db->HPNA_timer)
+ dmfe_HPNA_remote_cmd_chk(db);
+ }
+
+ /* Timer active again */
+ db->timer.expires = DMFE_TIMER_WUT;
+ add_timer(&db->timer);
+ spin_unlock_irqrestore(&db->lock, flags);
+}
+
+
+/*
+ * Dynamic reset the DM910X board
+ * Stop DM910X board
+ * Free Tx/Rx allocated memory
+ * Reset DM910X board
+ * Re-initilize DM910X board
+ */
+
+static void dmfe_dynamic_reset(struct DEVICE *dev)
+{
+ struct dmfe_board_info *db = netdev_priv(dev);
+
+ DMFE_DBUG(0, "dmfe_dynamic_reset()", 0);
+
+ /* Sopt MAC controller */
+ db->cr6_data &= ~(CR6_RXSC | CR6_TXSC); /* Disable Tx/Rx */
+ update_cr6(db->cr6_data, dev->base_addr);
+ outl(0, dev->base_addr + DCR7); /* Disable Interrupt */
+ outl(inl(dev->base_addr + DCR5), dev->base_addr + DCR5);
+
+ /* Disable upper layer interface */
+ netif_stop_queue(dev);
+
+ /* Free Rx Allocate buffer */
+ dmfe_free_rxbuffer(db);
+
+ /* system variable init */
+ db->tx_packet_cnt = 0;
+ db->tx_queue_cnt = 0;
+ db->rx_avail_cnt = 0;
+ db->link_failed = 1;
+ db->wait_reset = 0;
+
+ /* Re-initilize DM910X board */
+ dmfe_init_dm910x(dev);
+
+ /* Restart upper layer interface */
+ netif_wake_queue(dev);
+}
+
+
+/*
+ * free all allocated rx buffer
+ */
+
+static void dmfe_free_rxbuffer(struct dmfe_board_info * db)
+{
+ DMFE_DBUG(0, "dmfe_free_rxbuffer()", 0);
+
+ /* free allocated rx buffer */
+ while (db->rx_avail_cnt) {
+ dev_kfree_skb(db->rx_ready_ptr->rx_skb_ptr);
+ db->rx_ready_ptr = db->rx_ready_ptr->next_rx_desc;
+ db->rx_avail_cnt--;
+ }
+}
+
+
+/*
+ * Reuse the SK buffer
+ */
+
+static void dmfe_reuse_skb(struct dmfe_board_info *db, struct sk_buff * skb)
+{
+ struct rx_desc *rxptr = db->rx_insert_ptr;
+
+ if (!(rxptr->rdes0 & cpu_to_le32(0x80000000))) {
+ rxptr->rx_skb_ptr = skb;
+ rxptr->rdes2 = cpu_to_le32( pci_map_single(db->pdev, skb->tail, RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE) );
+ wmb();
+ rxptr->rdes0 = cpu_to_le32(0x80000000);
+ db->rx_avail_cnt++;
+ db->rx_insert_ptr = rxptr->next_rx_desc;
+ } else
+ DMFE_DBUG(0, "SK Buffer reuse method error", db->rx_avail_cnt);
+}
+
+
+/*
+ * Initialize transmit/Receive descriptor
+ * Using Chain structure, and allocate Tx/Rx buffer
+ */
+
+static void dmfe_descriptor_init(struct dmfe_board_info *db, unsigned long ioaddr)
+{
+ struct tx_desc *tmp_tx;
+ struct rx_desc *tmp_rx;
+ unsigned char *tmp_buf;
+ dma_addr_t tmp_tx_dma, tmp_rx_dma;
+ dma_addr_t tmp_buf_dma;
+ int i;
+
+ DMFE_DBUG(0, "dmfe_descriptor_init()", 0);
+
+ /* tx descriptor start pointer */
+ db->tx_insert_ptr = db->first_tx_desc;
+ db->tx_remove_ptr = db->first_tx_desc;
+ outl(db->first_tx_desc_dma, ioaddr + DCR4); /* TX DESC address */
+
+ /* rx descriptor start pointer */
+ db->first_rx_desc = (void *)db->first_tx_desc + sizeof(struct tx_desc) * TX_DESC_CNT;
+ db->first_rx_desc_dma = db->first_tx_desc_dma + sizeof(struct tx_desc) * TX_DESC_CNT;
+ db->rx_insert_ptr = db->first_rx_desc;
+ db->rx_ready_ptr = db->first_rx_desc;
+ outl(db->first_rx_desc_dma, ioaddr + DCR3); /* RX DESC address */
+
+ /* Init Transmit chain */
+ tmp_buf = db->buf_pool_start;
+ tmp_buf_dma = db->buf_pool_dma_start;
+ tmp_tx_dma = db->first_tx_desc_dma;
+ for (tmp_tx = db->first_tx_desc, i = 0; i < TX_DESC_CNT; i++, tmp_tx++) {
+ tmp_tx->tx_buf_ptr = tmp_buf;
+ tmp_tx->tdes0 = cpu_to_le32(0);
+ tmp_tx->tdes1 = cpu_to_le32(0x81000000); /* IC, chain */
+ tmp_tx->tdes2 = cpu_to_le32(tmp_buf_dma);
+ tmp_tx_dma += sizeof(struct tx_desc);
+ tmp_tx->tdes3 = cpu_to_le32(tmp_tx_dma);
+ tmp_tx->next_tx_desc = tmp_tx + 1;
+ tmp_buf = tmp_buf + TX_BUF_ALLOC;
+ tmp_buf_dma = tmp_buf_dma + TX_BUF_ALLOC;
+ }
+ (--tmp_tx)->tdes3 = cpu_to_le32(db->first_tx_desc_dma);
+ tmp_tx->next_tx_desc = db->first_tx_desc;
+
+ /* Init Receive descriptor chain */
+ tmp_rx_dma=db->first_rx_desc_dma;
+ for (tmp_rx = db->first_rx_desc, i = 0; i < RX_DESC_CNT; i++, tmp_rx++) {
+ tmp_rx->rdes0 = cpu_to_le32(0);
+ tmp_rx->rdes1 = cpu_to_le32(0x01000600);
+ tmp_rx_dma += sizeof(struct rx_desc);
+ tmp_rx->rdes3 = cpu_to_le32(tmp_rx_dma);
+ tmp_rx->next_rx_desc = tmp_rx + 1;
+ }
+ (--tmp_rx)->rdes3 = cpu_to_le32(db->first_rx_desc_dma);
+ tmp_rx->next_rx_desc = db->first_rx_desc;
+
+ /* pre-allocate Rx buffer */
+ allocate_rx_buffer(db);
+}
+
+
+/*
+ * Update CR6 value
+ * Firstly stop DM910X , then written value and start
+ */
+
+static void update_cr6(u32 cr6_data, unsigned long ioaddr)
+{
+ u32 cr6_tmp;
+
+ cr6_tmp = cr6_data & ~0x2002; /* stop Tx/Rx */
+ outl(cr6_tmp, ioaddr + DCR6);
+ udelay(5);
+ outl(cr6_data, ioaddr + DCR6);
+ udelay(5);
+}
+
+
+/*
+ * Send a setup frame for DM9132
+ * This setup frame initilize DM910X address filter mode
+*/
+
+static void dm9132_id_table(struct DEVICE *dev, int mc_cnt)
+{
+ struct dev_mc_list *mcptr;
+ u16 * addrptr;
+ unsigned long ioaddr = dev->base_addr+0xc0; /* ID Table */
+ u32 hash_val;
+ u16 i, hash_table[4];
+
+ DMFE_DBUG(0, "dm9132_id_table()", 0);
+
+ /* Node address */
+ addrptr = (u16 *) dev->dev_addr;
+ outw(addrptr[0], ioaddr);
+ ioaddr += 4;
+ outw(addrptr[1], ioaddr);
+ ioaddr += 4;
+ outw(addrptr[2], ioaddr);
+ ioaddr += 4;
+
+ /* Clear Hash Table */
+ for (i = 0; i < 4; i++)
+ hash_table[i] = 0x0;
+
+ /* broadcast address */
+ hash_table[3] = 0x8000;
+
+ /* the multicast address in Hash Table : 64 bits */
+ for (mcptr = dev->mc_list, i = 0; i < mc_cnt; i++, mcptr = mcptr->next) {
+ hash_val = cal_CRC( (char *) mcptr->dmi_addr, 6, 0) & 0x3f;
+ hash_table[hash_val / 16] |= (u16) 1 << (hash_val % 16);
+ }
+
+ /* Write the hash table to MAC MD table */
+ for (i = 0; i < 4; i++, ioaddr += 4)
+ outw(hash_table[i], ioaddr);
+}
+
+
+/*
+ * Send a setup frame for DM9102/DM9102A
+ * This setup frame initilize DM910X address filter mode
+ */
+
+static void send_filter_frame(struct DEVICE *dev, int mc_cnt)
+{
+ struct dmfe_board_info *db = netdev_priv(dev);
+ struct dev_mc_list *mcptr;
+ struct tx_desc *txptr;
+ u16 * addrptr;
+ u32 * suptr;
+ int i;
+
+ DMFE_DBUG(0, "send_filter_frame()", 0);
+
+ txptr = db->tx_insert_ptr;
+ suptr = (u32 *) txptr->tx_buf_ptr;
+
+ /* Node address */
+ addrptr = (u16 *) dev->dev_addr;
+ *suptr++ = addrptr[0];
+ *suptr++ = addrptr[1];
+ *suptr++ = addrptr[2];
+
+ /* broadcast address */
+ *suptr++ = 0xffff;
+ *suptr++ = 0xffff;
+ *suptr++ = 0xffff;
+
+ /* fit the multicast address */
+ for (mcptr = dev->mc_list, i = 0; i < mc_cnt; i++, mcptr = mcptr->next) {
+ addrptr = (u16 *) mcptr->dmi_addr;
+ *suptr++ = addrptr[0];
+ *suptr++ = addrptr[1];
+ *suptr++ = addrptr[2];
+ }
+
+ for (; i<14; i++) {
+ *suptr++ = 0xffff;
+ *suptr++ = 0xffff;
+ *suptr++ = 0xffff;
+ }
+
+ /* prepare the setup frame */
+ db->tx_insert_ptr = txptr->next_tx_desc;
+ txptr->tdes1 = cpu_to_le32(0x890000c0);
+
+ /* Resource Check and Send the setup packet */
+ if (!db->tx_packet_cnt) {
+ /* Resource Empty */
+ db->tx_packet_cnt++;
+ txptr->tdes0 = cpu_to_le32(0x80000000);
+ update_cr6(db->cr6_data | 0x2000, dev->base_addr);
+ outl(0x1, dev->base_addr + DCR1); /* Issue Tx polling */
+ update_cr6(db->cr6_data, dev->base_addr);
+ dev->trans_start = jiffies;
+ } else
+ db->tx_queue_cnt++; /* Put in TX queue */
+}
+
+
+/*
+ * Allocate rx buffer,
+ * As possible as allocate maxiumn Rx buffer
+ */
+
+static void allocate_rx_buffer(struct dmfe_board_info *db)
+{
+ struct rx_desc *rxptr;
+ struct sk_buff *skb;
+
+ rxptr = db->rx_insert_ptr;
+
+ while(db->rx_avail_cnt < RX_DESC_CNT) {
+ if ( ( skb = dev_alloc_skb(RX_ALLOC_SIZE) ) == NULL )
+ break;
+ rxptr->rx_skb_ptr = skb; /* FIXME (?) */
+ rxptr->rdes2 = cpu_to_le32( pci_map_single(db->pdev, skb->tail, RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE) );
+ wmb();
+ rxptr->rdes0 = cpu_to_le32(0x80000000);
+ rxptr = rxptr->next_rx_desc;
+ db->rx_avail_cnt++;
+ }
+
+ db->rx_insert_ptr = rxptr;
+}
+
+
+/*
+ * Read one word data from the serial ROM
+ */
+
+static u16 read_srom_word(long ioaddr, int offset)
+{
+ int i;
+ u16 srom_data = 0;
+ long cr9_ioaddr = ioaddr + DCR9;
+
+ outl(CR9_SROM_READ, cr9_ioaddr);
+ outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
+
+ /* Send the Read Command 110b */
+ SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr);
+ SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr);
+ SROM_CLK_WRITE(SROM_DATA_0, cr9_ioaddr);
+
+ /* Send the offset */
+ for (i = 5; i >= 0; i--) {
+ srom_data = (offset & (1 << i)) ? SROM_DATA_1 : SROM_DATA_0;
+ SROM_CLK_WRITE(srom_data, cr9_ioaddr);
+ }
+
+ outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
+
+ for (i = 16; i > 0; i--) {
+ outl(CR9_SROM_READ | CR9_SRCS | CR9_SRCLK, cr9_ioaddr);
+ udelay(5);
+ srom_data = (srom_data << 1) | ((inl(cr9_ioaddr) & CR9_CRDOUT) ? 1 : 0);
+ outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
+ udelay(5);
+ }
+
+ outl(CR9_SROM_READ, cr9_ioaddr);
+ return srom_data;
+}
+
+
+/*
+ * Auto sense the media mode
+ */
+
+static u8 dmfe_sense_speed(struct dmfe_board_info * db)
+{
+ u8 ErrFlag = 0;
+ u16 phy_mode;
+
+ /* CR6 bit18=0, select 10/100M */
+ update_cr6( (db->cr6_data & ~0x40000), db->ioaddr);
+
+ phy_mode = phy_read(db->ioaddr, db->phy_addr, 1, db->chip_id);
+ phy_mode = phy_read(db->ioaddr, db->phy_addr, 1, db->chip_id);
+
+ if ( (phy_mode & 0x24) == 0x24 ) {
+ if (db->chip_id == PCI_DM9132_ID) /* DM9132 */
+ phy_mode = phy_read(db->ioaddr, db->phy_addr, 7, db->chip_id) & 0xf000;
+ else /* DM9102/DM9102A */
+ phy_mode = phy_read(db->ioaddr, db->phy_addr, 17, db->chip_id) & 0xf000;
+ /* printk(DRV_NAME ": Phy_mode %x ",phy_mode); */
+ switch (phy_mode) {
+ case 0x1000: db->op_mode = DMFE_10MHF; break;
+ case 0x2000: db->op_mode = DMFE_10MFD; break;
+ case 0x4000: db->op_mode = DMFE_100MHF; break;
+ case 0x8000: db->op_mode = DMFE_100MFD; break;
+ default: db->op_mode = DMFE_10MHF;
+ ErrFlag = 1;
+ break;
+ }
+ } else {
+ db->op_mode = DMFE_10MHF;
+ DMFE_DBUG(0, "Link Failed :", phy_mode);
+ ErrFlag = 1;
+ }
+
+ return ErrFlag;
+}
+
+
+/*
+ * Set 10/100 phyxcer capability
+ * AUTO mode : phyxcer register4 is NIC capability
+ * Force mode: phyxcer register4 is the force media
+ */
+
+static void dmfe_set_phyxcer(struct dmfe_board_info *db)
+{
+ u16 phy_reg;
+
+ /* Select 10/100M phyxcer */
+ db->cr6_data &= ~0x40000;
+ update_cr6(db->cr6_data, db->ioaddr);
+
+ /* DM9009 Chip: Phyxcer reg18 bit12=0 */
+ if (db->chip_id == PCI_DM9009_ID) {
+ phy_reg = phy_read(db->ioaddr, db->phy_addr, 18, db->chip_id) & ~0x1000;
+ phy_write(db->ioaddr, db->phy_addr, 18, phy_reg, db->chip_id);
+ }
+
+ /* Phyxcer capability setting */
+ phy_reg = phy_read(db->ioaddr, db->phy_addr, 4, db->chip_id) & ~0x01e0;
+
+ if (db->media_mode & DMFE_AUTO) {
+ /* AUTO Mode */
+ phy_reg |= db->PHY_reg4;
+ } else {
+ /* Force Mode */
+ switch(db->media_mode) {
+ case DMFE_10MHF: phy_reg |= 0x20; break;
+ case DMFE_10MFD: phy_reg |= 0x40; break;
+ case DMFE_100MHF: phy_reg |= 0x80; break;
+ case DMFE_100MFD: phy_reg |= 0x100; break;
+ }
+ if (db->chip_id == PCI_DM9009_ID) phy_reg &= 0x61;
+ }
+
+ /* Write new capability to Phyxcer Reg4 */
+ if ( !(phy_reg & 0x01e0)) {
+ phy_reg|=db->PHY_reg4;
+ db->media_mode|=DMFE_AUTO;
+ }
+ phy_write(db->ioaddr, db->phy_addr, 4, phy_reg, db->chip_id);
+
+ /* Restart Auto-Negotiation */
+ if ( db->chip_type && (db->chip_id == PCI_DM9102_ID) )
+ phy_write(db->ioaddr, db->phy_addr, 0, 0x1800, db->chip_id);
+ if ( !db->chip_type )
+ phy_write(db->ioaddr, db->phy_addr, 0, 0x1200, db->chip_id);
+}
+
+
+/*
+ * Process op-mode
+ * AUTO mode : PHY controller in Auto-negotiation Mode
+ * Force mode: PHY controller in force mode with HUB
+ * N-way force capability with SWITCH
+ */
+
+static void dmfe_process_mode(struct dmfe_board_info *db)
+{
+ u16 phy_reg;
+
+ /* Full Duplex Mode Check */
+ if (db->op_mode & 0x4)
+ db->cr6_data |= CR6_FDM; /* Set Full Duplex Bit */
+ else
+ db->cr6_data &= ~CR6_FDM; /* Clear Full Duplex Bit */
+
+ /* Transciver Selection */
+ if (db->op_mode & 0x10) /* 1M HomePNA */
+ db->cr6_data |= 0x40000;/* External MII select */
+ else
+ db->cr6_data &= ~0x40000;/* Internal 10/100 transciver */
+
+ update_cr6(db->cr6_data, db->ioaddr);
+
+ /* 10/100M phyxcer force mode need */
+ if ( !(db->media_mode & 0x18)) {
+ /* Forece Mode */
+ phy_reg = phy_read(db->ioaddr, db->phy_addr, 6, db->chip_id);
+ if ( !(phy_reg & 0x1) ) {
+ /* parter without N-Way capability */
+ phy_reg = 0x0;
+ switch(db->op_mode) {
+ case DMFE_10MHF: phy_reg = 0x0; break;
+ case DMFE_10MFD: phy_reg = 0x100; break;
+ case DMFE_100MHF: phy_reg = 0x2000; break;
+ case DMFE_100MFD: phy_reg = 0x2100; break;
+ }
+ phy_write(db->ioaddr, db->phy_addr, 0, phy_reg, db->chip_id);
+ if ( db->chip_type && (db->chip_id == PCI_DM9102_ID) )
+ mdelay(20);
+ phy_write(db->ioaddr, db->phy_addr, 0, phy_reg, db->chip_id);
+ }
+ }
+}
+
+
+/*
+ * Write a word to Phy register
+ */
+
+static void phy_write(unsigned long iobase, u8 phy_addr, u8 offset, u16 phy_data, u32 chip_id)
+{
+ u16 i;
+ unsigned long ioaddr;
+
+ if (chip_id == PCI_DM9132_ID) {
+ ioaddr = iobase + 0x80 + offset * 4;
+ outw(phy_data, ioaddr);
+ } else {
+ /* DM9102/DM9102A Chip */
+ ioaddr = iobase + DCR9;
+
+ /* Send 33 synchronization clock to Phy controller */
+ for (i = 0; i < 35; i++)
+ phy_write_1bit(ioaddr, PHY_DATA_1);
+
+ /* Send start command(01) to Phy */
+ phy_write_1bit(ioaddr, PHY_DATA_0);
+ phy_write_1bit(ioaddr, PHY_DATA_1);
+
+ /* Send write command(01) to Phy */
+ phy_write_1bit(ioaddr, PHY_DATA_0);
+ phy_write_1bit(ioaddr, PHY_DATA_1);
+
+ /* Send Phy address */
+ for (i = 0x10; i > 0; i = i >> 1)
+ phy_write_1bit(ioaddr, phy_addr & i ? PHY_DATA_1 : PHY_DATA_0);
+
+ /* Send register address */
+ for (i = 0x10; i > 0; i = i >> 1)
+ phy_write_1bit(ioaddr, offset & i ? PHY_DATA_1 : PHY_DATA_0);
+
+ /* written trasnition */
+ phy_write_1bit(ioaddr, PHY_DATA_1);
+ phy_write_1bit(ioaddr, PHY_DATA_0);
+
+ /* Write a word data to PHY controller */
+ for ( i = 0x8000; i > 0; i >>= 1)
+ phy_write_1bit(ioaddr, phy_data & i ? PHY_DATA_1 : PHY_DATA_0);
+ }
+}
+
+
+/*
+ * Read a word data from phy register
+ */
+
+static u16 phy_read(unsigned long iobase, u8 phy_addr, u8 offset, u32 chip_id)
+{
+ int i;
+ u16 phy_data;
+ unsigned long ioaddr;
+
+ if (chip_id == PCI_DM9132_ID) {
+ /* DM9132 Chip */
+ ioaddr = iobase + 0x80 + offset * 4;
+ phy_data = inw(ioaddr);
+ } else {
+ /* DM9102/DM9102A Chip */
+ ioaddr = iobase + DCR9;
+
+ /* Send 33 synchronization clock to Phy controller */
+ for (i = 0; i < 35; i++)
+ phy_write_1bit(ioaddr, PHY_DATA_1);
+
+ /* Send start command(01) to Phy */
+ phy_write_1bit(ioaddr, PHY_DATA_0);
+ phy_write_1bit(ioaddr, PHY_DATA_1);
+
+ /* Send read command(10) to Phy */
+ phy_write_1bit(ioaddr, PHY_DATA_1);
+ phy_write_1bit(ioaddr, PHY_DATA_0);
+
+ /* Send Phy address */
+ for (i = 0x10; i > 0; i = i >> 1)
+ phy_write_1bit(ioaddr, phy_addr & i ? PHY_DATA_1 : PHY_DATA_0);
+
+ /* Send register address */
+ for (i = 0x10; i > 0; i = i >> 1)
+ phy_write_1bit(ioaddr, offset & i ? PHY_DATA_1 : PHY_DATA_0);
+
+ /* Skip transition state */
+ phy_read_1bit(ioaddr);
+
+ /* read 16bit data */
+ for (phy_data = 0, i = 0; i < 16; i++) {
+ phy_data <<= 1;
+ phy_data |= phy_read_1bit(ioaddr);
+ }
+ }
+
+ return phy_data;
+}
+
+
+/*
+ * Write one bit data to Phy Controller
+ */
+
+static void phy_write_1bit(unsigned long ioaddr, u32 phy_data)
+{
+ outl(phy_data, ioaddr); /* MII Clock Low */
+ udelay(1);
+ outl(phy_data | MDCLKH, ioaddr); /* MII Clock High */
+ udelay(1);
+ outl(phy_data, ioaddr); /* MII Clock Low */
+ udelay(1);
+}
+
+
+/*
+ * Read one bit phy data from PHY controller
+ */
+
+static u16 phy_read_1bit(unsigned long ioaddr)
+{
+ u16 phy_data;
+
+ outl(0x50000, ioaddr);
+ udelay(1);
+ phy_data = ( inl(ioaddr) >> 19 ) & 0x1;
+ outl(0x40000, ioaddr);
+ udelay(1);
+
+ return phy_data;
+}
+
+
+/*
+ * Parser SROM and media mode
+ */
+
+static void dmfe_parse_srom(struct dmfe_board_info * db)
+{
+ char * srom = db->srom;
+ int dmfe_mode, tmp_reg;
+
+ DMFE_DBUG(0, "dmfe_parse_srom() ", 0);
+
+ /* Init CR15 */
+ db->cr15_data = CR15_DEFAULT;
+
+ /* Check SROM Version */
+ if ( ( (int) srom[18] & 0xff) == SROM_V41_CODE) {
+ /* SROM V4.01 */
+ /* Get NIC support media mode */
+ db->NIC_capability = le16_to_cpup(srom + 34);
+ db->PHY_reg4 = 0;
+ for (tmp_reg = 1; tmp_reg < 0x10; tmp_reg <<= 1) {
+ switch( db->NIC_capability & tmp_reg ) {
+ case 0x1: db->PHY_reg4 |= 0x0020; break;
+ case 0x2: db->PHY_reg4 |= 0x0040; break;
+ case 0x4: db->PHY_reg4 |= 0x0080; break;
+ case 0x8: db->PHY_reg4 |= 0x0100; break;
+ }
+ }
+
+ /* Media Mode Force or not check */
+ dmfe_mode = le32_to_cpup(srom + 34) & le32_to_cpup(srom + 36);
+ switch(dmfe_mode) {
+ case 0x4: dmfe_media_mode = DMFE_100MHF; break; /* 100MHF */
+ case 0x2: dmfe_media_mode = DMFE_10MFD; break; /* 10MFD */
+ case 0x8: dmfe_media_mode = DMFE_100MFD; break; /* 100MFD */
+ case 0x100:
+ case 0x200: dmfe_media_mode = DMFE_1M_HPNA; break;/* HomePNA */
+ }
+
+ /* Special Function setting */
+ /* VLAN function */
+ if ( (SF_mode & 0x1) || (srom[43] & 0x80) )
+ db->cr15_data |= 0x40;
+
+ /* Flow Control */
+ if ( (SF_mode & 0x2) || (srom[40] & 0x1) )
+ db->cr15_data |= 0x400;
+
+ /* TX pause packet */
+ if ( (SF_mode & 0x4) || (srom[40] & 0xe) )
+ db->cr15_data |= 0x9800;
+ }
+
+ /* Parse HPNA parameter */
+ db->HPNA_command = 1;
+
+ /* Accept remote command or not */
+ if (HPNA_rx_cmd == 0)
+ db->HPNA_command |= 0x8000;
+
+ /* Issue remote command & operation mode */
+ if (HPNA_tx_cmd == 1)
+ switch(HPNA_mode) { /* Issue Remote Command */
+ case 0: db->HPNA_command |= 0x0904; break;
+ case 1: db->HPNA_command |= 0x0a00; break;
+ case 2: db->HPNA_command |= 0x0506; break;
+ case 3: db->HPNA_command |= 0x0602; break;
+ }
+ else
+ switch(HPNA_mode) { /* Don't Issue */
+ case 0: db->HPNA_command |= 0x0004; break;
+ case 1: db->HPNA_command |= 0x0000; break;
+ case 2: db->HPNA_command |= 0x0006; break;
+ case 3: db->HPNA_command |= 0x0002; break;
+ }
+
+ /* Check DM9801 or DM9802 present or not */
+ db->HPNA_present = 0;
+ update_cr6(db->cr6_data|0x40000, db->ioaddr);
+ tmp_reg = phy_read(db->ioaddr, db->phy_addr, 3, db->chip_id);
+ if ( ( tmp_reg & 0xfff0 ) == 0xb900 ) {
+ /* DM9801 or DM9802 present */
+ db->HPNA_timer = 8;
+ if ( phy_read(db->ioaddr, db->phy_addr, 31, db->chip_id) == 0x4404) {
+ /* DM9801 HomeRun */
+ db->HPNA_present = 1;
+ dmfe_program_DM9801(db, tmp_reg);
+ } else {
+ /* DM9802 LongRun */
+ db->HPNA_present = 2;
+ dmfe_program_DM9802(db);
+ }
+ }
+
+}
+
+
+/*
+ * Init HomeRun DM9801
+ */
+
+static void dmfe_program_DM9801(struct dmfe_board_info * db, int HPNA_rev)
+{
+ uint reg17, reg25;
+
+ if ( !HPNA_NoiseFloor ) HPNA_NoiseFloor = DM9801_NOISE_FLOOR;
+ switch(HPNA_rev) {
+ case 0xb900: /* DM9801 E3 */
+ db->HPNA_command |= 0x1000;
+ reg25 = phy_read(db->ioaddr, db->phy_addr, 24, db->chip_id);
+ reg25 = ( (reg25 + HPNA_NoiseFloor) & 0xff) | 0xf000;
+ reg17 = phy_read(db->ioaddr, db->phy_addr, 17, db->chip_id);
+ break;
+ case 0xb901: /* DM9801 E4 */
+ reg25 = phy_read(db->ioaddr, db->phy_addr, 25, db->chip_id);
+ reg25 = (reg25 & 0xff00) + HPNA_NoiseFloor;
+ reg17 = phy_read(db->ioaddr, db->phy_addr, 17, db->chip_id);
+ reg17 = (reg17 & 0xfff0) + HPNA_NoiseFloor + 3;
+ break;
+ case 0xb902: /* DM9801 E5 */
+ case 0xb903: /* DM9801 E6 */
+ default:
+ db->HPNA_command |= 0x1000;
+ reg25 = phy_read(db->ioaddr, db->phy_addr, 25, db->chip_id);
+ reg25 = (reg25 & 0xff00) + HPNA_NoiseFloor - 5;
+ reg17 = phy_read(db->ioaddr, db->phy_addr, 17, db->chip_id);
+ reg17 = (reg17 & 0xfff0) + HPNA_NoiseFloor;
+ break;
+ }
+ phy_write(db->ioaddr, db->phy_addr, 16, db->HPNA_command, db->chip_id);
+ phy_write(db->ioaddr, db->phy_addr, 17, reg17, db->chip_id);
+ phy_write(db->ioaddr, db->phy_addr, 25, reg25, db->chip_id);
+}
+
+
+/*
+ * Init HomeRun DM9802
+ */
+
+static void dmfe_program_DM9802(struct dmfe_board_info * db)
+{
+ uint phy_reg;
+
+ if ( !HPNA_NoiseFloor ) HPNA_NoiseFloor = DM9802_NOISE_FLOOR;
+ phy_write(db->ioaddr, db->phy_addr, 16, db->HPNA_command, db->chip_id);
+ phy_reg = phy_read(db->ioaddr, db->phy_addr, 25, db->chip_id);
+ phy_reg = ( phy_reg & 0xff00) + HPNA_NoiseFloor;
+ phy_write(db->ioaddr, db->phy_addr, 25, phy_reg, db->chip_id);
+}
+
+
+/*
+ * Check remote HPNA power and speed status. If not correct,
+ * issue command again.
+*/
+
+static void dmfe_HPNA_remote_cmd_chk(struct dmfe_board_info * db)
+{
+ uint phy_reg;
+
+ /* Got remote device status */
+ phy_reg = phy_read(db->ioaddr, db->phy_addr, 17, db->chip_id) & 0x60;
+ switch(phy_reg) {
+ case 0x00: phy_reg = 0x0a00;break; /* LP/LS */
+ case 0x20: phy_reg = 0x0900;break; /* LP/HS */
+ case 0x40: phy_reg = 0x0600;break; /* HP/LS */
+ case 0x60: phy_reg = 0x0500;break; /* HP/HS */
+ }
+
+ /* Check remote device status match our setting ot not */
+ if ( phy_reg != (db->HPNA_command & 0x0f00) ) {
+ phy_write(db->ioaddr, db->phy_addr, 16, db->HPNA_command, db->chip_id);
+ db->HPNA_timer=8;
+ } else
+ db->HPNA_timer=600; /* Match, every 10 minutes, check */
+}
+
+
+
+static struct pci_device_id dmfe_pci_tbl[] = {
+ { 0x1282, 0x9132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_DM9132_ID },
+ { 0x1282, 0x9102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_DM9102_ID },
+ { 0x1282, 0x9100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_DM9100_ID },
+ { 0x1282, 0x9009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_DM9009_ID },
+ { 0, }
+};
+MODULE_DEVICE_TABLE(pci, dmfe_pci_tbl);
+
+
+static struct pci_driver dmfe_driver = {
+ .name = "dmfe",
+ .id_table = dmfe_pci_tbl,
+ .probe = dmfe_init_one,
+ .remove = __devexit_p(dmfe_remove_one),
+};
+
+MODULE_AUTHOR("Sten Wang, sten_wang@davicom.com.tw");
+MODULE_DESCRIPTION("Davicom DM910X fast ethernet driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_param(debug, int, 0);
+module_param(mode, byte, 0);
+module_param(cr6set, int, 0);
+module_param(chkmode, byte, 0);
+module_param(HPNA_mode, byte, 0);
+module_param(HPNA_rx_cmd, byte, 0);
+module_param(HPNA_tx_cmd, byte, 0);
+module_param(HPNA_NoiseFloor, byte, 0);
+module_param(SF_mode, byte, 0);
+MODULE_PARM_DESC(debug, "Davicom DM9xxx enable debugging (0-1)");
+MODULE_PARM_DESC(mode, "Davicom DM9xxx: Bit 0: 10/100Mbps, bit 2: duplex, bit 8: HomePNA");
+MODULE_PARM_DESC(SF_mode, "Davicom DM9xxx special function (bit 0: VLAN, bit 1 Flow Control, bit 2: TX pause packet)");
+
+/* Description:
+ * when user used insmod to add module, system invoked init_module()
+ * to initilize and register.
+ */
+
+static int __init dmfe_init_module(void)
+{
+ int rc;
+
+ printk(version);
+ printed_version = 1;
+
+ DMFE_DBUG(0, "init_module() ", debug);
+
+ if (debug)
+ dmfe_debug = debug; /* set debug flag */
+ if (cr6set)
+ dmfe_cr6_user_set = cr6set;
+
+ switch(mode) {
+ case DMFE_10MHF:
+ case DMFE_100MHF:
+ case DMFE_10MFD:
+ case DMFE_100MFD:
+ case DMFE_1M_HPNA:
+ dmfe_media_mode = mode;
+ break;
+ default:dmfe_media_mode = DMFE_AUTO;
+ break;
+ }
+
+ if (HPNA_mode > 4)
+ HPNA_mode = 0; /* Default: LP/HS */
+ if (HPNA_rx_cmd > 1)
+ HPNA_rx_cmd = 0; /* Default: Ignored remote cmd */
+ if (HPNA_tx_cmd > 1)
+ HPNA_tx_cmd = 0; /* Default: Don't issue remote cmd */
+ if (HPNA_NoiseFloor > 15)
+ HPNA_NoiseFloor = 0;
+
+ rc = pci_module_init(&dmfe_driver);
+ if (rc < 0)
+ return rc;
+
+ return 0;
+}
+
+
+/*
+ * Description:
+ * when user used rmmod to delete module, system invoked clean_module()
+ * to un-register all registered services.
+ */
+
+static void __exit dmfe_cleanup_module(void)
+{
+ DMFE_DBUG(0, "dmfe_clean_module() ", debug);
+ pci_unregister_driver(&dmfe_driver);
+}
+
+module_init(dmfe_init_module);
+module_exit(dmfe_cleanup_module);
diff --git a/drivers/net/tulip/eeprom.c b/drivers/net/tulip/eeprom.c
new file mode 100644
index 000000000000..ac5bf49ff60f
--- /dev/null
+++ b/drivers/net/tulip/eeprom.c
@@ -0,0 +1,357 @@
+/*
+ drivers/net/tulip/eeprom.c
+
+ Maintained by Jeff Garzik <jgarzik@pobox.com>
+ Copyright 2000,2001 The Linux Kernel Team
+ Written/copyright 1994-2001 by Donald Becker.
+
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
+ for more information on this driver, or visit the project
+ Web page at http://sourceforge.net/projects/tulip/
+
+*/
+
+#include <linux/pci.h>
+#include "tulip.h"
+#include <linux/init.h>
+#include <asm/unaligned.h>
+
+
+
+/* Serial EEPROM section. */
+/* The main routine to parse the very complicated SROM structure.
+ Search www.digital.com for "21X4 SROM" to get details.
+ This code is very complex, and will require changes to support
+ additional cards, so I'll be verbose about what is going on.
+ */
+
+/* Known cards that have old-style EEPROMs. */
+static struct eeprom_fixup eeprom_fixups[] __devinitdata = {
+ {"Asante", 0, 0, 0x94, {0x1e00, 0x0000, 0x0800, 0x0100, 0x018c,
+ 0x0000, 0x0000, 0xe078, 0x0001, 0x0050, 0x0018 }},
+ {"SMC9332DST", 0, 0, 0xC0, { 0x1e00, 0x0000, 0x0800, 0x041f,
+ 0x0000, 0x009E, /* 10baseT */
+ 0x0004, 0x009E, /* 10baseT-FD */
+ 0x0903, 0x006D, /* 100baseTx */
+ 0x0905, 0x006D, /* 100baseTx-FD */ }},
+ {"Cogent EM100", 0, 0, 0x92, { 0x1e00, 0x0000, 0x0800, 0x063f,
+ 0x0107, 0x8021, /* 100baseFx */
+ 0x0108, 0x8021, /* 100baseFx-FD */
+ 0x0100, 0x009E, /* 10baseT */
+ 0x0104, 0x009E, /* 10baseT-FD */
+ 0x0103, 0x006D, /* 100baseTx */
+ 0x0105, 0x006D, /* 100baseTx-FD */ }},
+ {"Maxtech NX-110", 0, 0, 0xE8, { 0x1e00, 0x0000, 0x0800, 0x0513,
+ 0x1001, 0x009E, /* 10base2, CSR12 0x10*/
+ 0x0000, 0x009E, /* 10baseT */
+ 0x0004, 0x009E, /* 10baseT-FD */
+ 0x0303, 0x006D, /* 100baseTx, CSR12 0x03 */
+ 0x0305, 0x006D, /* 100baseTx-FD CSR12 0x03 */}},
+ {"Accton EN1207", 0, 0, 0xE8, { 0x1e00, 0x0000, 0x0800, 0x051F,
+ 0x1B01, 0x0000, /* 10base2, CSR12 0x1B */
+ 0x0B00, 0x009E, /* 10baseT, CSR12 0x0B */
+ 0x0B04, 0x009E, /* 10baseT-FD,CSR12 0x0B */
+ 0x1B03, 0x006D, /* 100baseTx, CSR12 0x1B */
+ 0x1B05, 0x006D, /* 100baseTx-FD CSR12 0x1B */
+ }},
+ {"NetWinder", 0x00, 0x10, 0x57,
+ /* Default media = MII
+ * MII block, reset sequence (3) = 0x0821 0x0000 0x0001, capabilities 0x01e1
+ */
+ { 0x1e00, 0x0000, 0x000b, 0x8f01, 0x0103, 0x0300, 0x0821, 0x000, 0x0001, 0x0000, 0x01e1 }
+ },
+ {NULL}};
+
+
+static const char *block_name[] __devinitdata = {
+ "21140 non-MII",
+ "21140 MII PHY",
+ "21142 Serial PHY",
+ "21142 MII PHY",
+ "21143 SYM PHY",
+ "21143 reset method"
+};
+
+
+/**
+ * tulip_build_fake_mediatable - Build a fake mediatable entry.
+ * @tp: Ptr to the tulip private data.
+ *
+ * Some cards like the 3x5 HSC cards (J3514A) do not have a standard
+ * srom and can not be handled under the fixup routine. These cards
+ * still need a valid mediatable entry for correct csr12 setup and
+ * mii handling.
+ *
+ * Since this is currently a parisc-linux specific function, the
+ * #ifdef __hppa__ should completely optimize this function away for
+ * non-parisc hardware.
+ */
+static void __devinit tulip_build_fake_mediatable(struct tulip_private *tp)
+{
+#ifdef CONFIG_GSC
+ if (tp->flags & NEEDS_FAKE_MEDIA_TABLE) {
+ static unsigned char leafdata[] =
+ { 0x01, /* phy number */
+ 0x02, /* gpr setup sequence length */
+ 0x02, 0x00, /* gpr setup sequence */
+ 0x02, /* phy reset sequence length */
+ 0x01, 0x00, /* phy reset sequence */
+ 0x00, 0x78, /* media capabilities */
+ 0x00, 0xe0, /* nway advertisment */
+ 0x00, 0x05, /* fdx bit map */
+ 0x00, 0x06 /* ttm bit map */
+ };
+
+ tp->mtable = (struct mediatable *)
+ kmalloc(sizeof(struct mediatable) + sizeof(struct medialeaf), GFP_KERNEL);
+
+ if (tp->mtable == NULL)
+ return; /* Horrible, impossible failure. */
+
+ tp->mtable->defaultmedia = 0x800;
+ tp->mtable->leafcount = 1;
+ tp->mtable->csr12dir = 0x3f; /* inputs on bit7 for hsc-pci, bit6 for pci-fx */
+ tp->mtable->has_nonmii = 0;
+ tp->mtable->has_reset = 0;
+ tp->mtable->has_mii = 1;
+ tp->mtable->csr15dir = tp->mtable->csr15val = 0;
+ tp->mtable->mleaf[0].type = 1;
+ tp->mtable->mleaf[0].media = 11;
+ tp->mtable->mleaf[0].leafdata = &leafdata[0];
+ tp->flags |= HAS_PHY_IRQ;
+ tp->csr12_shadow = -1;
+ }
+#endif
+}
+
+void __devinit tulip_parse_eeprom(struct net_device *dev)
+{
+ /* The last media info list parsed, for multiport boards. */
+ static struct mediatable *last_mediatable;
+ static unsigned char *last_ee_data;
+ static int controller_index;
+ struct tulip_private *tp = netdev_priv(dev);
+ unsigned char *ee_data = tp->eeprom;
+ int i;
+
+ tp->mtable = NULL;
+ /* Detect an old-style (SA only) EEPROM layout:
+ memcmp(eedata, eedata+16, 8). */
+ for (i = 0; i < 8; i ++)
+ if (ee_data[i] != ee_data[16+i])
+ break;
+ if (i >= 8) {
+ if (ee_data[0] == 0xff) {
+ if (last_mediatable) {
+ controller_index++;
+ printk(KERN_INFO "%s: Controller %d of multiport board.\n",
+ dev->name, controller_index);
+ tp->mtable = last_mediatable;
+ ee_data = last_ee_data;
+ goto subsequent_board;
+ } else
+ printk(KERN_INFO "%s: Missing EEPROM, this interface may "
+ "not work correctly!\n",
+ dev->name);
+ return;
+ }
+ /* Do a fix-up based on the vendor half of the station address prefix. */
+ for (i = 0; eeprom_fixups[i].name; i++) {
+ if (dev->dev_addr[0] == eeprom_fixups[i].addr0
+ && dev->dev_addr[1] == eeprom_fixups[i].addr1
+ && dev->dev_addr[2] == eeprom_fixups[i].addr2) {
+ if (dev->dev_addr[2] == 0xE8 && ee_data[0x1a] == 0x55)
+ i++; /* An Accton EN1207, not an outlaw Maxtech. */
+ memcpy(ee_data + 26, eeprom_fixups[i].newtable,
+ sizeof(eeprom_fixups[i].newtable));
+ printk(KERN_INFO "%s: Old format EEPROM on '%s' board. Using"
+ " substitute media control info.\n",
+ dev->name, eeprom_fixups[i].name);
+ break;
+ }
+ }
+ if (eeprom_fixups[i].name == NULL) { /* No fixup found. */
+ printk(KERN_INFO "%s: Old style EEPROM with no media selection "
+ "information.\n",
+ dev->name);
+ return;
+ }
+ }
+
+ controller_index = 0;
+ if (ee_data[19] > 1) { /* Multiport board. */
+ last_ee_data = ee_data;
+ }
+subsequent_board:
+
+ if (ee_data[27] == 0) { /* No valid media table. */
+ tulip_build_fake_mediatable(tp);
+ } else {
+ unsigned char *p = (void *)ee_data + ee_data[27];
+ unsigned char csr12dir = 0;
+ int count, new_advertise = 0;
+ struct mediatable *mtable;
+ u16 media = get_u16(p);
+
+ p += 2;
+ if (tp->flags & CSR12_IN_SROM)
+ csr12dir = *p++;
+ count = *p++;
+
+ /* there is no phy information, don't even try to build mtable */
+ if (count == 0) {
+ if (tulip_debug > 0)
+ printk(KERN_WARNING "%s: no phy info, aborting mtable build\n", dev->name);
+ return;
+ }
+
+ mtable = (struct mediatable *)
+ kmalloc(sizeof(struct mediatable) + count*sizeof(struct medialeaf),
+ GFP_KERNEL);
+ if (mtable == NULL)
+ return; /* Horrible, impossible failure. */
+ last_mediatable = tp->mtable = mtable;
+ mtable->defaultmedia = media;
+ mtable->leafcount = count;
+ mtable->csr12dir = csr12dir;
+ mtable->has_nonmii = mtable->has_mii = mtable->has_reset = 0;
+ mtable->csr15dir = mtable->csr15val = 0;
+
+ printk(KERN_INFO "%s: EEPROM default media type %s.\n", dev->name,
+ media & 0x0800 ? "Autosense" : medianame[media & MEDIA_MASK]);
+ for (i = 0; i < count; i++) {
+ struct medialeaf *leaf = &mtable->mleaf[i];
+
+ if ((p[0] & 0x80) == 0) { /* 21140 Compact block. */
+ leaf->type = 0;
+ leaf->media = p[0] & 0x3f;
+ leaf->leafdata = p;
+ if ((p[2] & 0x61) == 0x01) /* Bogus, but Znyx boards do it. */
+ mtable->has_mii = 1;
+ p += 4;
+ } else {
+ leaf->type = p[1];
+ if (p[1] == 0x05) {
+ mtable->has_reset = i;
+ leaf->media = p[2] & 0x0f;
+ } else if (tp->chip_id == DM910X && p[1] == 0x80) {
+ /* Hack to ignore Davicom delay period block */
+ mtable->leafcount--;
+ count--;
+ i--;
+ leaf->leafdata = p + 2;
+ p += (p[0] & 0x3f) + 1;
+ continue;
+ } else if (p[1] & 1) {
+ int gpr_len, reset_len;
+
+ mtable->has_mii = 1;
+ leaf->media = 11;
+ gpr_len=p[3]*2;
+ reset_len=p[4+gpr_len]*2;
+ new_advertise |= get_u16(&p[7+gpr_len+reset_len]);
+ } else {
+ mtable->has_nonmii = 1;
+ leaf->media = p[2] & MEDIA_MASK;
+ /* Davicom's media number for 100BaseTX is strange */
+ if (tp->chip_id == DM910X && leaf->media == 1)
+ leaf->media = 3;
+ switch (leaf->media) {
+ case 0: new_advertise |= 0x0020; break;
+ case 4: new_advertise |= 0x0040; break;
+ case 3: new_advertise |= 0x0080; break;
+ case 5: new_advertise |= 0x0100; break;
+ case 6: new_advertise |= 0x0200; break;
+ }
+ if (p[1] == 2 && leaf->media == 0) {
+ if (p[2] & 0x40) {
+ u32 base15 = get_unaligned((u16*)&p[7]);
+ mtable->csr15dir =
+ (get_unaligned((u16*)&p[9])<<16) + base15;
+ mtable->csr15val =
+ (get_unaligned((u16*)&p[11])<<16) + base15;
+ } else {
+ mtable->csr15dir = get_unaligned((u16*)&p[3])<<16;
+ mtable->csr15val = get_unaligned((u16*)&p[5])<<16;
+ }
+ }
+ }
+ leaf->leafdata = p + 2;
+ p += (p[0] & 0x3f) + 1;
+ }
+ if (tulip_debug > 1 && leaf->media == 11) {
+ unsigned char *bp = leaf->leafdata;
+ printk(KERN_INFO "%s: MII interface PHY %d, setup/reset "
+ "sequences %d/%d long, capabilities %2.2x %2.2x.\n",
+ dev->name, bp[0], bp[1], bp[2 + bp[1]*2],
+ bp[5 + bp[2 + bp[1]*2]*2], bp[4 + bp[2 + bp[1]*2]*2]);
+ }
+ printk(KERN_INFO "%s: Index #%d - Media %s (#%d) described "
+ "by a %s (%d) block.\n",
+ dev->name, i, medianame[leaf->media & 15], leaf->media,
+ leaf->type < ARRAY_SIZE(block_name) ? block_name[leaf->type] : "<unknown>",
+ leaf->type);
+ }
+ if (new_advertise)
+ tp->sym_advertise = new_advertise;
+ }
+}
+/* Reading a serial EEPROM is a "bit" grungy, but we work our way through:->.*/
+
+/* EEPROM_Ctrl bits. */
+#define EE_SHIFT_CLK 0x02 /* EEPROM shift clock. */
+#define EE_CS 0x01 /* EEPROM chip select. */
+#define EE_DATA_WRITE 0x04 /* Data from the Tulip to EEPROM. */
+#define EE_WRITE_0 0x01
+#define EE_WRITE_1 0x05
+#define EE_DATA_READ 0x08 /* Data from the EEPROM chip. */
+#define EE_ENB (0x4800 | EE_CS)
+
+/* Delay between EEPROM clock transitions.
+ Even at 33Mhz current PCI implementations don't overrun the EEPROM clock.
+ We add a bus turn-around to insure that this remains true. */
+#define eeprom_delay() ioread32(ee_addr)
+
+/* The EEPROM commands include the alway-set leading bit. */
+#define EE_READ_CMD (6)
+
+/* Note: this routine returns extra data bits for size detection. */
+int __devinit tulip_read_eeprom(struct net_device *dev, int location, int addr_len)
+{
+ int i;
+ unsigned retval = 0;
+ struct tulip_private *tp = dev->priv;
+ void __iomem *ee_addr = tp->base_addr + CSR9;
+ int read_cmd = location | (EE_READ_CMD << addr_len);
+
+ iowrite32(EE_ENB & ~EE_CS, ee_addr);
+ iowrite32(EE_ENB, ee_addr);
+
+ /* Shift the read command bits out. */
+ for (i = 4 + addr_len; i >= 0; i--) {
+ short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
+ iowrite32(EE_ENB | dataval, ee_addr);
+ eeprom_delay();
+ iowrite32(EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
+ eeprom_delay();
+ retval = (retval << 1) | ((ioread32(ee_addr) & EE_DATA_READ) ? 1 : 0);
+ }
+ iowrite32(EE_ENB, ee_addr);
+ eeprom_delay();
+
+ for (i = 16; i > 0; i--) {
+ iowrite32(EE_ENB | EE_SHIFT_CLK, ee_addr);
+ eeprom_delay();
+ retval = (retval << 1) | ((ioread32(ee_addr) & EE_DATA_READ) ? 1 : 0);
+ iowrite32(EE_ENB, ee_addr);
+ eeprom_delay();
+ }
+
+ /* Terminate the EEPROM access. */
+ iowrite32(EE_ENB & ~EE_CS, ee_addr);
+ return (tp->flags & HAS_SWAPPED_SEEPROM) ? swab16(retval) : retval;
+}
+
diff --git a/drivers/net/tulip/interrupt.c b/drivers/net/tulip/interrupt.c
new file mode 100644
index 000000000000..afb5cda9d8e1
--- /dev/null
+++ b/drivers/net/tulip/interrupt.c
@@ -0,0 +1,786 @@
+/*
+ drivers/net/tulip/interrupt.c
+
+ Maintained by Jeff Garzik <jgarzik@pobox.com>
+ Copyright 2000,2001 The Linux Kernel Team
+ Written/copyright 1994-2001 by Donald Becker.
+
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
+ for more information on this driver, or visit the project
+ Web page at http://sourceforge.net/projects/tulip/
+
+*/
+
+#include <linux/pci.h>
+#include "tulip.h"
+#include <linux/config.h>
+#include <linux/etherdevice.h>
+
+int tulip_rx_copybreak;
+unsigned int tulip_max_interrupt_work;
+
+#ifdef CONFIG_TULIP_NAPI_HW_MITIGATION
+#define MIT_SIZE 15
+#define MIT_TABLE 15 /* We use 0 or max */
+
+static unsigned int mit_table[MIT_SIZE+1] =
+{
+ /* CRS11 21143 hardware Mitigation Control Interrupt
+ We use only RX mitigation we other techniques for
+ TX intr. mitigation.
+
+ 31 Cycle Size (timer control)
+ 30:27 TX timer in 16 * Cycle size
+ 26:24 TX No pkts before Int.
+ 23:20 RX timer in Cycle size
+ 19:17 RX No pkts before Int.
+ 16 Continues Mode (CM)
+ */
+
+ 0x0, /* IM disabled */
+ 0x80150000, /* RX time = 1, RX pkts = 2, CM = 1 */
+ 0x80150000,
+ 0x80270000,
+ 0x80370000,
+ 0x80490000,
+ 0x80590000,
+ 0x80690000,
+ 0x807B0000,
+ 0x808B0000,
+ 0x809D0000,
+ 0x80AD0000,
+ 0x80BD0000,
+ 0x80CF0000,
+ 0x80DF0000,
+// 0x80FF0000 /* RX time = 16, RX pkts = 7, CM = 1 */
+ 0x80F10000 /* RX time = 16, RX pkts = 0, CM = 1 */
+};
+#endif
+
+
+int tulip_refill_rx(struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ int entry;
+ int refilled = 0;
+
+ /* Refill the Rx ring buffers. */
+ for (; tp->cur_rx - tp->dirty_rx > 0; tp->dirty_rx++) {
+ entry = tp->dirty_rx % RX_RING_SIZE;
+ if (tp->rx_buffers[entry].skb == NULL) {
+ struct sk_buff *skb;
+ dma_addr_t mapping;
+
+ skb = tp->rx_buffers[entry].skb = dev_alloc_skb(PKT_BUF_SZ);
+ if (skb == NULL)
+ break;
+
+ mapping = pci_map_single(tp->pdev, skb->tail, PKT_BUF_SZ,
+ PCI_DMA_FROMDEVICE);
+ tp->rx_buffers[entry].mapping = mapping;
+
+ skb->dev = dev; /* Mark as being used by this device. */
+ tp->rx_ring[entry].buffer1 = cpu_to_le32(mapping);
+ refilled++;
+ }
+ tp->rx_ring[entry].status = cpu_to_le32(DescOwned);
+ }
+ if(tp->chip_id == LC82C168) {
+ if(((ioread32(tp->base_addr + CSR5)>>17)&0x07) == 4) {
+ /* Rx stopped due to out of buffers,
+ * restart it
+ */
+ iowrite32(0x01, tp->base_addr + CSR2);
+ }
+ }
+ return refilled;
+}
+
+#ifdef CONFIG_TULIP_NAPI
+
+void oom_timer(unsigned long data)
+{
+ struct net_device *dev = (struct net_device *)data;
+ netif_rx_schedule(dev);
+}
+
+int tulip_poll(struct net_device *dev, int *budget)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ int entry = tp->cur_rx % RX_RING_SIZE;
+ int rx_work_limit = *budget;
+ int received = 0;
+
+ if (!netif_running(dev))
+ goto done;
+
+ if (rx_work_limit > dev->quota)
+ rx_work_limit = dev->quota;
+
+#ifdef CONFIG_TULIP_NAPI_HW_MITIGATION
+
+/* that one buffer is needed for mit activation; or might be a
+ bug in the ring buffer code; check later -- JHS*/
+
+ if (rx_work_limit >=RX_RING_SIZE) rx_work_limit--;
+#endif
+
+ if (tulip_debug > 4)
+ printk(KERN_DEBUG " In tulip_rx(), entry %d %8.8x.\n", entry,
+ tp->rx_ring[entry].status);
+
+ do {
+ if (ioread32(tp->base_addr + CSR5) == 0xffffffff) {
+ printk(KERN_DEBUG " In tulip_poll(), hardware disappeared.\n");
+ break;
+ }
+ /* Acknowledge current RX interrupt sources. */
+ iowrite32((RxIntr | RxNoBuf), tp->base_addr + CSR5);
+
+
+ /* If we own the next entry, it is a new packet. Send it up. */
+ while ( ! (tp->rx_ring[entry].status & cpu_to_le32(DescOwned))) {
+ s32 status = le32_to_cpu(tp->rx_ring[entry].status);
+
+
+ if (tp->dirty_rx + RX_RING_SIZE == tp->cur_rx)
+ break;
+
+ if (tulip_debug > 5)
+ printk(KERN_DEBUG "%s: In tulip_rx(), entry %d %8.8x.\n",
+ dev->name, entry, status);
+ if (--rx_work_limit < 0)
+ goto not_done;
+
+ if ((status & 0x38008300) != 0x0300) {
+ if ((status & 0x38000300) != 0x0300) {
+ /* Ingore earlier buffers. */
+ if ((status & 0xffff) != 0x7fff) {
+ if (tulip_debug > 1)
+ printk(KERN_WARNING "%s: Oversized Ethernet frame "
+ "spanned multiple buffers, status %8.8x!\n",
+ dev->name, status);
+ tp->stats.rx_length_errors++;
+ }
+ } else if (status & RxDescFatalErr) {
+ /* There was a fatal error. */
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "%s: Receive error, Rx status %8.8x.\n",
+ dev->name, status);
+ tp->stats.rx_errors++; /* end of a packet.*/
+ if (status & 0x0890) tp->stats.rx_length_errors++;
+ if (status & 0x0004) tp->stats.rx_frame_errors++;
+ if (status & 0x0002) tp->stats.rx_crc_errors++;
+ if (status & 0x0001) tp->stats.rx_fifo_errors++;
+ }
+ } else {
+ /* Omit the four octet CRC from the length. */
+ short pkt_len = ((status >> 16) & 0x7ff) - 4;
+ struct sk_buff *skb;
+
+#ifndef final_version
+ if (pkt_len > 1518) {
+ printk(KERN_WARNING "%s: Bogus packet size of %d (%#x).\n",
+ dev->name, pkt_len, pkt_len);
+ pkt_len = 1518;
+ tp->stats.rx_length_errors++;
+ }
+#endif
+ /* Check if the packet is long enough to accept without copying
+ to a minimally-sized skbuff. */
+ if (pkt_len < tulip_rx_copybreak
+ && (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
+ skb->dev = dev;
+ skb_reserve(skb, 2); /* 16 byte align the IP header */
+ pci_dma_sync_single_for_cpu(tp->pdev,
+ tp->rx_buffers[entry].mapping,
+ pkt_len, PCI_DMA_FROMDEVICE);
+#if ! defined(__alpha__)
+ eth_copy_and_sum(skb, tp->rx_buffers[entry].skb->tail,
+ pkt_len, 0);
+ skb_put(skb, pkt_len);
+#else
+ memcpy(skb_put(skb, pkt_len),
+ tp->rx_buffers[entry].skb->tail,
+ pkt_len);
+#endif
+ pci_dma_sync_single_for_device(tp->pdev,
+ tp->rx_buffers[entry].mapping,
+ pkt_len, PCI_DMA_FROMDEVICE);
+ } else { /* Pass up the skb already on the Rx ring. */
+ char *temp = skb_put(skb = tp->rx_buffers[entry].skb,
+ pkt_len);
+
+#ifndef final_version
+ if (tp->rx_buffers[entry].mapping !=
+ le32_to_cpu(tp->rx_ring[entry].buffer1)) {
+ printk(KERN_ERR "%s: Internal fault: The skbuff addresses "
+ "do not match in tulip_rx: %08x vs. %08llx %p / %p.\n",
+ dev->name,
+ le32_to_cpu(tp->rx_ring[entry].buffer1),
+ (unsigned long long)tp->rx_buffers[entry].mapping,
+ skb->head, temp);
+ }
+#endif
+
+ pci_unmap_single(tp->pdev, tp->rx_buffers[entry].mapping,
+ PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
+
+ tp->rx_buffers[entry].skb = NULL;
+ tp->rx_buffers[entry].mapping = 0;
+ }
+ skb->protocol = eth_type_trans(skb, dev);
+
+ netif_receive_skb(skb);
+
+ dev->last_rx = jiffies;
+ tp->stats.rx_packets++;
+ tp->stats.rx_bytes += pkt_len;
+ }
+ received++;
+
+ entry = (++tp->cur_rx) % RX_RING_SIZE;
+ if (tp->cur_rx - tp->dirty_rx > RX_RING_SIZE/4)
+ tulip_refill_rx(dev);
+
+ }
+
+ /* New ack strategy... irq does not ack Rx any longer
+ hopefully this helps */
+
+ /* Really bad things can happen here... If new packet arrives
+ * and an irq arrives (tx or just due to occasionally unset
+ * mask), it will be acked by irq handler, but new thread
+ * is not scheduled. It is major hole in design.
+ * No idea how to fix this if "playing with fire" will fail
+ * tomorrow (night 011029). If it will not fail, we won
+ * finally: amount of IO did not increase at all. */
+ } while ((ioread32(tp->base_addr + CSR5) & RxIntr));
+
+done:
+
+ #ifdef CONFIG_TULIP_NAPI_HW_MITIGATION
+
+ /* We use this simplistic scheme for IM. It's proven by
+ real life installations. We can have IM enabled
+ continuesly but this would cause unnecessary latency.
+ Unfortunely we can't use all the NET_RX_* feedback here.
+ This would turn on IM for devices that is not contributing
+ to backlog congestion with unnecessary latency.
+
+ We monitor the the device RX-ring and have:
+
+ HW Interrupt Mitigation either ON or OFF.
+
+ ON: More then 1 pkt received (per intr.) OR we are dropping
+ OFF: Only 1 pkt received
+
+ Note. We only use min and max (0, 15) settings from mit_table */
+
+
+ if( tp->flags & HAS_INTR_MITIGATION) {
+ if( received > 1 ) {
+ if( ! tp->mit_on ) {
+ tp->mit_on = 1;
+ iowrite32(mit_table[MIT_TABLE], tp->base_addr + CSR11);
+ }
+ }
+ else {
+ if( tp->mit_on ) {
+ tp->mit_on = 0;
+ iowrite32(0, tp->base_addr + CSR11);
+ }
+ }
+ }
+
+#endif /* CONFIG_TULIP_NAPI_HW_MITIGATION */
+
+ dev->quota -= received;
+ *budget -= received;
+
+ tulip_refill_rx(dev);
+
+ /* If RX ring is not full we are out of memory. */
+ if (tp->rx_buffers[tp->dirty_rx % RX_RING_SIZE].skb == NULL) goto oom;
+
+ /* Remove us from polling list and enable RX intr. */
+
+ netif_rx_complete(dev);
+ iowrite32(tulip_tbl[tp->chip_id].valid_intrs, tp->base_addr+CSR7);
+
+ /* The last op happens after poll completion. Which means the following:
+ * 1. it can race with disabling irqs in irq handler
+ * 2. it can race with dise/enabling irqs in other poll threads
+ * 3. if an irq raised after beginning loop, it will be immediately
+ * triggered here.
+ *
+ * Summarizing: the logic results in some redundant irqs both
+ * due to races in masking and due to too late acking of already
+ * processed irqs. But it must not result in losing events.
+ */
+
+ return 0;
+
+ not_done:
+ if (!received) {
+
+ received = dev->quota; /* Not to happen */
+ }
+ dev->quota -= received;
+ *budget -= received;
+
+ if (tp->cur_rx - tp->dirty_rx > RX_RING_SIZE/2 ||
+ tp->rx_buffers[tp->dirty_rx % RX_RING_SIZE].skb == NULL)
+ tulip_refill_rx(dev);
+
+ if (tp->rx_buffers[tp->dirty_rx % RX_RING_SIZE].skb == NULL) goto oom;
+
+ return 1;
+
+
+ oom: /* Executed with RX ints disabled */
+
+
+ /* Start timer, stop polling, but do not enable rx interrupts. */
+ mod_timer(&tp->oom_timer, jiffies+1);
+
+ /* Think: timer_pending() was an explicit signature of bug.
+ * Timer can be pending now but fired and completed
+ * before we did netif_rx_complete(). See? We would lose it. */
+
+ /* remove ourselves from the polling list */
+ netif_rx_complete(dev);
+
+ return 0;
+}
+
+#else /* CONFIG_TULIP_NAPI */
+
+static int tulip_rx(struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ int entry = tp->cur_rx % RX_RING_SIZE;
+ int rx_work_limit = tp->dirty_rx + RX_RING_SIZE - tp->cur_rx;
+ int received = 0;
+
+ if (tulip_debug > 4)
+ printk(KERN_DEBUG " In tulip_rx(), entry %d %8.8x.\n", entry,
+ tp->rx_ring[entry].status);
+ /* If we own the next entry, it is a new packet. Send it up. */
+ while ( ! (tp->rx_ring[entry].status & cpu_to_le32(DescOwned))) {
+ s32 status = le32_to_cpu(tp->rx_ring[entry].status);
+
+ if (tulip_debug > 5)
+ printk(KERN_DEBUG "%s: In tulip_rx(), entry %d %8.8x.\n",
+ dev->name, entry, status);
+ if (--rx_work_limit < 0)
+ break;
+ if ((status & 0x38008300) != 0x0300) {
+ if ((status & 0x38000300) != 0x0300) {
+ /* Ingore earlier buffers. */
+ if ((status & 0xffff) != 0x7fff) {
+ if (tulip_debug > 1)
+ printk(KERN_WARNING "%s: Oversized Ethernet frame "
+ "spanned multiple buffers, status %8.8x!\n",
+ dev->name, status);
+ tp->stats.rx_length_errors++;
+ }
+ } else if (status & RxDescFatalErr) {
+ /* There was a fatal error. */
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "%s: Receive error, Rx status %8.8x.\n",
+ dev->name, status);
+ tp->stats.rx_errors++; /* end of a packet.*/
+ if (status & 0x0890) tp->stats.rx_length_errors++;
+ if (status & 0x0004) tp->stats.rx_frame_errors++;
+ if (status & 0x0002) tp->stats.rx_crc_errors++;
+ if (status & 0x0001) tp->stats.rx_fifo_errors++;
+ }
+ } else {
+ /* Omit the four octet CRC from the length. */
+ short pkt_len = ((status >> 16) & 0x7ff) - 4;
+ struct sk_buff *skb;
+
+#ifndef final_version
+ if (pkt_len > 1518) {
+ printk(KERN_WARNING "%s: Bogus packet size of %d (%#x).\n",
+ dev->name, pkt_len, pkt_len);
+ pkt_len = 1518;
+ tp->stats.rx_length_errors++;
+ }
+#endif
+
+ /* Check if the packet is long enough to accept without copying
+ to a minimally-sized skbuff. */
+ if (pkt_len < tulip_rx_copybreak
+ && (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
+ skb->dev = dev;
+ skb_reserve(skb, 2); /* 16 byte align the IP header */
+ pci_dma_sync_single_for_cpu(tp->pdev,
+ tp->rx_buffers[entry].mapping,
+ pkt_len, PCI_DMA_FROMDEVICE);
+#if ! defined(__alpha__)
+ eth_copy_and_sum(skb, tp->rx_buffers[entry].skb->tail,
+ pkt_len, 0);
+ skb_put(skb, pkt_len);
+#else
+ memcpy(skb_put(skb, pkt_len),
+ tp->rx_buffers[entry].skb->tail,
+ pkt_len);
+#endif
+ pci_dma_sync_single_for_device(tp->pdev,
+ tp->rx_buffers[entry].mapping,
+ pkt_len, PCI_DMA_FROMDEVICE);
+ } else { /* Pass up the skb already on the Rx ring. */
+ char *temp = skb_put(skb = tp->rx_buffers[entry].skb,
+ pkt_len);
+
+#ifndef final_version
+ if (tp->rx_buffers[entry].mapping !=
+ le32_to_cpu(tp->rx_ring[entry].buffer1)) {
+ printk(KERN_ERR "%s: Internal fault: The skbuff addresses "
+ "do not match in tulip_rx: %08x vs. %Lx %p / %p.\n",
+ dev->name,
+ le32_to_cpu(tp->rx_ring[entry].buffer1),
+ (long long)tp->rx_buffers[entry].mapping,
+ skb->head, temp);
+ }
+#endif
+
+ pci_unmap_single(tp->pdev, tp->rx_buffers[entry].mapping,
+ PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
+
+ tp->rx_buffers[entry].skb = NULL;
+ tp->rx_buffers[entry].mapping = 0;
+ }
+ skb->protocol = eth_type_trans(skb, dev);
+
+ netif_rx(skb);
+
+ dev->last_rx = jiffies;
+ tp->stats.rx_packets++;
+ tp->stats.rx_bytes += pkt_len;
+ }
+ received++;
+ entry = (++tp->cur_rx) % RX_RING_SIZE;
+ }
+ return received;
+}
+#endif /* CONFIG_TULIP_NAPI */
+
+static inline unsigned int phy_interrupt (struct net_device *dev)
+{
+#ifdef __hppa__
+ struct tulip_private *tp = netdev_priv(dev);
+ int csr12 = ioread32(tp->base_addr + CSR12) & 0xff;
+
+ if (csr12 != tp->csr12_shadow) {
+ /* ack interrupt */
+ iowrite32(csr12 | 0x02, tp->base_addr + CSR12);
+ tp->csr12_shadow = csr12;
+ /* do link change stuff */
+ spin_lock(&tp->lock);
+ tulip_check_duplex(dev);
+ spin_unlock(&tp->lock);
+ /* clear irq ack bit */
+ iowrite32(csr12 & ~0x02, tp->base_addr + CSR12);
+
+ return 1;
+ }
+#endif
+
+ return 0;
+}
+
+/* The interrupt handler does all of the Rx thread work and cleans up
+ after the Tx thread. */
+irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
+{
+ struct net_device *dev = (struct net_device *)dev_instance;
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ int csr5;
+ int missed;
+ int rx = 0;
+ int tx = 0;
+ int oi = 0;
+ int maxrx = RX_RING_SIZE;
+ int maxtx = TX_RING_SIZE;
+ int maxoi = TX_RING_SIZE;
+#ifdef CONFIG_TULIP_NAPI
+ int rxd = 0;
+#else
+ int entry;
+#endif
+ unsigned int work_count = tulip_max_interrupt_work;
+ unsigned int handled = 0;
+
+ /* Let's see whether the interrupt really is for us */
+ csr5 = ioread32(ioaddr + CSR5);
+
+ if (tp->flags & HAS_PHY_IRQ)
+ handled = phy_interrupt (dev);
+
+ if ((csr5 & (NormalIntr|AbnormalIntr)) == 0)
+ return IRQ_RETVAL(handled);
+
+ tp->nir++;
+
+ do {
+
+#ifdef CONFIG_TULIP_NAPI
+
+ if (!rxd && (csr5 & (RxIntr | RxNoBuf))) {
+ rxd++;
+ /* Mask RX intrs and add the device to poll list. */
+ iowrite32(tulip_tbl[tp->chip_id].valid_intrs&~RxPollInt, ioaddr + CSR7);
+ netif_rx_schedule(dev);
+
+ if (!(csr5&~(AbnormalIntr|NormalIntr|RxPollInt|TPLnkPass)))
+ break;
+ }
+
+ /* Acknowledge the interrupt sources we handle here ASAP
+ the poll function does Rx and RxNoBuf acking */
+
+ iowrite32(csr5 & 0x0001ff3f, ioaddr + CSR5);
+
+#else
+ /* Acknowledge all of the current interrupt sources ASAP. */
+ iowrite32(csr5 & 0x0001ffff, ioaddr + CSR5);
+
+
+ if (csr5 & (RxIntr | RxNoBuf)) {
+ rx += tulip_rx(dev);
+ tulip_refill_rx(dev);
+ }
+
+#endif /* CONFIG_TULIP_NAPI */
+
+ if (tulip_debug > 4)
+ printk(KERN_DEBUG "%s: interrupt csr5=%#8.8x new csr5=%#8.8x.\n",
+ dev->name, csr5, ioread32(ioaddr + CSR5));
+
+
+ if (csr5 & (TxNoBuf | TxDied | TxIntr | TimerInt)) {
+ unsigned int dirty_tx;
+
+ spin_lock(&tp->lock);
+
+ for (dirty_tx = tp->dirty_tx; tp->cur_tx - dirty_tx > 0;
+ dirty_tx++) {
+ int entry = dirty_tx % TX_RING_SIZE;
+ int status = le32_to_cpu(tp->tx_ring[entry].status);
+
+ if (status < 0)
+ break; /* It still has not been Txed */
+
+ /* Check for Rx filter setup frames. */
+ if (tp->tx_buffers[entry].skb == NULL) {
+ /* test because dummy frames not mapped */
+ if (tp->tx_buffers[entry].mapping)
+ pci_unmap_single(tp->pdev,
+ tp->tx_buffers[entry].mapping,
+ sizeof(tp->setup_frame),
+ PCI_DMA_TODEVICE);
+ continue;
+ }
+
+ if (status & 0x8000) {
+ /* There was an major error, log it. */
+#ifndef final_version
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n",
+ dev->name, status);
+#endif
+ tp->stats.tx_errors++;
+ if (status & 0x4104) tp->stats.tx_aborted_errors++;
+ if (status & 0x0C00) tp->stats.tx_carrier_errors++;
+ if (status & 0x0200) tp->stats.tx_window_errors++;
+ if (status & 0x0002) tp->stats.tx_fifo_errors++;
+ if ((status & 0x0080) && tp->full_duplex == 0)
+ tp->stats.tx_heartbeat_errors++;
+ } else {
+ tp->stats.tx_bytes +=
+ tp->tx_buffers[entry].skb->len;
+ tp->stats.collisions += (status >> 3) & 15;
+ tp->stats.tx_packets++;
+ }
+
+ pci_unmap_single(tp->pdev, tp->tx_buffers[entry].mapping,
+ tp->tx_buffers[entry].skb->len,
+ PCI_DMA_TODEVICE);
+
+ /* Free the original skb. */
+ dev_kfree_skb_irq(tp->tx_buffers[entry].skb);
+ tp->tx_buffers[entry].skb = NULL;
+ tp->tx_buffers[entry].mapping = 0;
+ tx++;
+ }
+
+#ifndef final_version
+ if (tp->cur_tx - dirty_tx > TX_RING_SIZE) {
+ printk(KERN_ERR "%s: Out-of-sync dirty pointer, %d vs. %d.\n",
+ dev->name, dirty_tx, tp->cur_tx);
+ dirty_tx += TX_RING_SIZE;
+ }
+#endif
+
+ if (tp->cur_tx - dirty_tx < TX_RING_SIZE - 2)
+ netif_wake_queue(dev);
+
+ tp->dirty_tx = dirty_tx;
+ if (csr5 & TxDied) {
+ if (tulip_debug > 2)
+ printk(KERN_WARNING "%s: The transmitter stopped."
+ " CSR5 is %x, CSR6 %x, new CSR6 %x.\n",
+ dev->name, csr5, ioread32(ioaddr + CSR6), tp->csr6);
+ tulip_restart_rxtx(tp);
+ }
+ spin_unlock(&tp->lock);
+ }
+
+ /* Log errors. */
+ if (csr5 & AbnormalIntr) { /* Abnormal error summary bit. */
+ if (csr5 == 0xffffffff)
+ break;
+ if (csr5 & TxJabber) tp->stats.tx_errors++;
+ if (csr5 & TxFIFOUnderflow) {
+ if ((tp->csr6 & 0xC000) != 0xC000)
+ tp->csr6 += 0x4000; /* Bump up the Tx threshold */
+ else
+ tp->csr6 |= 0x00200000; /* Store-n-forward. */
+ /* Restart the transmit process. */
+ tulip_restart_rxtx(tp);
+ iowrite32(0, ioaddr + CSR1);
+ }
+ if (csr5 & (RxDied | RxNoBuf)) {
+ if (tp->flags & COMET_MAC_ADDR) {
+ iowrite32(tp->mc_filter[0], ioaddr + 0xAC);
+ iowrite32(tp->mc_filter[1], ioaddr + 0xB0);
+ }
+ }
+ if (csr5 & RxDied) { /* Missed a Rx frame. */
+ tp->stats.rx_missed_errors += ioread32(ioaddr + CSR8) & 0xffff;
+ tp->stats.rx_errors++;
+ tulip_start_rxtx(tp);
+ }
+ /*
+ * NB: t21142_lnk_change() does a del_timer_sync(), so be careful if this
+ * call is ever done under the spinlock
+ */
+ if (csr5 & (TPLnkPass | TPLnkFail | 0x08000000)) {
+ if (tp->link_change)
+ (tp->link_change)(dev, csr5);
+ }
+ if (csr5 & SytemError) {
+ int error = (csr5 >> 23) & 7;
+ /* oops, we hit a PCI error. The code produced corresponds
+ * to the reason:
+ * 0 - parity error
+ * 1 - master abort
+ * 2 - target abort
+ * Note that on parity error, we should do a software reset
+ * of the chip to get it back into a sane state (according
+ * to the 21142/3 docs that is).
+ * -- rmk
+ */
+ printk(KERN_ERR "%s: (%lu) System Error occurred (%d)\n",
+ dev->name, tp->nir, error);
+ }
+ /* Clear all error sources, included undocumented ones! */
+ iowrite32(0x0800f7ba, ioaddr + CSR5);
+ oi++;
+ }
+ if (csr5 & TimerInt) {
+
+ if (tulip_debug > 2)
+ printk(KERN_ERR "%s: Re-enabling interrupts, %8.8x.\n",
+ dev->name, csr5);
+ iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7);
+ tp->ttimer = 0;
+ oi++;
+ }
+ if (tx > maxtx || rx > maxrx || oi > maxoi) {
+ if (tulip_debug > 1)
+ printk(KERN_WARNING "%s: Too much work during an interrupt, "
+ "csr5=0x%8.8x. (%lu) (%d,%d,%d)\n", dev->name, csr5, tp->nir, tx, rx, oi);
+
+ /* Acknowledge all interrupt sources. */
+ iowrite32(0x8001ffff, ioaddr + CSR5);
+ if (tp->flags & HAS_INTR_MITIGATION) {
+ /* Josip Loncaric at ICASE did extensive experimentation
+ to develop a good interrupt mitigation setting.*/
+ iowrite32(0x8b240000, ioaddr + CSR11);
+ } else if (tp->chip_id == LC82C168) {
+ /* the LC82C168 doesn't have a hw timer.*/
+ iowrite32(0x00, ioaddr + CSR7);
+ mod_timer(&tp->timer, RUN_AT(HZ/50));
+ } else {
+ /* Mask all interrupting sources, set timer to
+ re-enable. */
+ iowrite32(((~csr5) & 0x0001ebef) | AbnormalIntr | TimerInt, ioaddr + CSR7);
+ iowrite32(0x0012, ioaddr + CSR11);
+ }
+ break;
+ }
+
+ work_count--;
+ if (work_count == 0)
+ break;
+
+ csr5 = ioread32(ioaddr + CSR5);
+
+#ifdef CONFIG_TULIP_NAPI
+ if (rxd)
+ csr5 &= ~RxPollInt;
+ } while ((csr5 & (TxNoBuf |
+ TxDied |
+ TxIntr |
+ TimerInt |
+ /* Abnormal intr. */
+ RxDied |
+ TxFIFOUnderflow |
+ TxJabber |
+ TPLnkFail |
+ SytemError )) != 0);
+#else
+ } while ((csr5 & (NormalIntr|AbnormalIntr)) != 0);
+
+ tulip_refill_rx(dev);
+
+ /* check if the card is in suspend mode */
+ entry = tp->dirty_rx % RX_RING_SIZE;
+ if (tp->rx_buffers[entry].skb == NULL) {
+ if (tulip_debug > 1)
+ printk(KERN_WARNING "%s: in rx suspend mode: (%lu) (tp->cur_rx = %u, ttimer = %d, rx = %d) go/stay in suspend mode\n", dev->name, tp->nir, tp->cur_rx, tp->ttimer, rx);
+ if (tp->chip_id == LC82C168) {
+ iowrite32(0x00, ioaddr + CSR7);
+ mod_timer(&tp->timer, RUN_AT(HZ/50));
+ } else {
+ if (tp->ttimer == 0 || (ioread32(ioaddr + CSR11) & 0xffff) == 0) {
+ if (tulip_debug > 1)
+ printk(KERN_WARNING "%s: in rx suspend mode: (%lu) set timer\n", dev->name, tp->nir);
+ iowrite32(tulip_tbl[tp->chip_id].valid_intrs | TimerInt,
+ ioaddr + CSR7);
+ iowrite32(TimerInt, ioaddr + CSR5);
+ iowrite32(12, ioaddr + CSR11);
+ tp->ttimer = 1;
+ }
+ }
+ }
+#endif /* CONFIG_TULIP_NAPI */
+
+ if ((missed = ioread32(ioaddr + CSR8) & 0x1ffff)) {
+ tp->stats.rx_dropped += missed & 0x10000 ? 0x10000 : missed;
+ }
+
+ if (tulip_debug > 4)
+ printk(KERN_DEBUG "%s: exiting interrupt, csr5=%#4.4x.\n",
+ dev->name, ioread32(ioaddr + CSR5));
+
+ return IRQ_HANDLED;
+}
diff --git a/drivers/net/tulip/media.c b/drivers/net/tulip/media.c
new file mode 100644
index 000000000000..edae09a4b021
--- /dev/null
+++ b/drivers/net/tulip/media.c
@@ -0,0 +1,562 @@
+/*
+ drivers/net/tulip/media.c
+
+ Maintained by Jeff Garzik <jgarzik@pobox.com>
+ Copyright 2000,2001 The Linux Kernel Team
+ Written/copyright 1994-2001 by Donald Becker.
+
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
+ for more information on this driver, or visit the project
+ Web page at http://sourceforge.net/projects/tulip/
+
+*/
+
+#include <linux/kernel.h>
+#include <linux/mii.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include "tulip.h"
+
+
+/* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
+ met by back-to-back PCI I/O cycles, but we insert a delay to avoid
+ "overclocking" issues or future 66Mhz PCI. */
+#define mdio_delay() ioread32(mdio_addr)
+
+/* Read and write the MII registers using software-generated serial
+ MDIO protocol. It is just different enough from the EEPROM protocol
+ to not share code. The maxium data clock rate is 2.5 Mhz. */
+#define MDIO_SHIFT_CLK 0x10000
+#define MDIO_DATA_WRITE0 0x00000
+#define MDIO_DATA_WRITE1 0x20000
+#define MDIO_ENB 0x00000 /* Ignore the 0x02000 databook setting. */
+#define MDIO_ENB_IN 0x40000
+#define MDIO_DATA_READ 0x80000
+
+static const unsigned char comet_miireg2offset[32] = {
+ 0xB4, 0xB8, 0xBC, 0xC0, 0xC4, 0xC8, 0xCC, 0, 0,0,0,0, 0,0,0,0,
+ 0,0xD0,0,0, 0,0,0,0, 0,0,0,0, 0, 0xD4, 0xD8, 0xDC, };
+
+
+/* MII transceiver control section.
+ Read and write the MII registers using software-generated serial
+ MDIO protocol. See the MII specifications or DP83840A data sheet
+ for details. */
+
+int tulip_mdio_read(struct net_device *dev, int phy_id, int location)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ int i;
+ int read_cmd = (0xf6 << 10) | ((phy_id & 0x1f) << 5) | location;
+ int retval = 0;
+ void __iomem *ioaddr = tp->base_addr;
+ void __iomem *mdio_addr = ioaddr + CSR9;
+ unsigned long flags;
+
+ if (location & ~0x1f)
+ return 0xffff;
+
+ if (tp->chip_id == COMET && phy_id == 30) {
+ if (comet_miireg2offset[location])
+ return ioread32(ioaddr + comet_miireg2offset[location]);
+ return 0xffff;
+ }
+
+ spin_lock_irqsave(&tp->mii_lock, flags);
+ if (tp->chip_id == LC82C168) {
+ int i = 1000;
+ iowrite32(0x60020000 + (phy_id<<23) + (location<<18), ioaddr + 0xA0);
+ ioread32(ioaddr + 0xA0);
+ ioread32(ioaddr + 0xA0);
+ while (--i > 0) {
+ barrier();
+ if ( ! ((retval = ioread32(ioaddr + 0xA0)) & 0x80000000))
+ break;
+ }
+ spin_unlock_irqrestore(&tp->mii_lock, flags);
+ return retval & 0xffff;
+ }
+
+ if(tp->chip_id == ULI526X && tp->revision >= 0x40) {
+ int value;
+ int i = 1000;
+
+ value = ioread32(ioaddr + CSR9);
+ iowrite32(value & 0xFFEFFFFF, ioaddr + CSR9);
+
+ value = (phy_id << 21) | (location << 16) | 0x08000000;
+ iowrite32(value, ioaddr + CSR10);
+
+ while(--i > 0) {
+ mdio_delay();
+ if(ioread32(ioaddr + CSR10) & 0x10000000)
+ break;
+ }
+ retval = ioread32(ioaddr + CSR10);
+ spin_unlock_irqrestore(&tp->mii_lock, flags);
+ return retval & 0xFFFF;
+ }
+ /* Establish sync by sending at least 32 logic ones. */
+ for (i = 32; i >= 0; i--) {
+ iowrite32(MDIO_ENB | MDIO_DATA_WRITE1, mdio_addr);
+ mdio_delay();
+ iowrite32(MDIO_ENB | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ /* Shift the read command bits out. */
+ for (i = 15; i >= 0; i--) {
+ int dataval = (read_cmd & (1 << i)) ? MDIO_DATA_WRITE1 : 0;
+
+ iowrite32(MDIO_ENB | dataval, mdio_addr);
+ mdio_delay();
+ iowrite32(MDIO_ENB | dataval | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ /* Read the two transition, 16 data, and wire-idle bits. */
+ for (i = 19; i > 0; i--) {
+ iowrite32(MDIO_ENB_IN, mdio_addr);
+ mdio_delay();
+ retval = (retval << 1) | ((ioread32(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
+ iowrite32(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+
+ spin_unlock_irqrestore(&tp->mii_lock, flags);
+ return (retval>>1) & 0xffff;
+}
+
+void tulip_mdio_write(struct net_device *dev, int phy_id, int location, int val)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ int i;
+ int cmd = (0x5002 << 16) | ((phy_id & 0x1f) << 23) | (location<<18) | (val & 0xffff);
+ void __iomem *ioaddr = tp->base_addr;
+ void __iomem *mdio_addr = ioaddr + CSR9;
+ unsigned long flags;
+
+ if (location & ~0x1f)
+ return;
+
+ if (tp->chip_id == COMET && phy_id == 30) {
+ if (comet_miireg2offset[location])
+ iowrite32(val, ioaddr + comet_miireg2offset[location]);
+ return;
+ }
+
+ spin_lock_irqsave(&tp->mii_lock, flags);
+ if (tp->chip_id == LC82C168) {
+ int i = 1000;
+ iowrite32(cmd, ioaddr + 0xA0);
+ do {
+ barrier();
+ if ( ! (ioread32(ioaddr + 0xA0) & 0x80000000))
+ break;
+ } while (--i > 0);
+ spin_unlock_irqrestore(&tp->mii_lock, flags);
+ return;
+ }
+ if (tp->chip_id == ULI526X && tp->revision >= 0x40) {
+ int value;
+ int i = 1000;
+
+ value = ioread32(ioaddr + CSR9);
+ iowrite32(value & 0xFFEFFFFF, ioaddr + CSR9);
+
+ value = (phy_id << 21) | (location << 16) | 0x04000000 | (val & 0xFFFF);
+ iowrite32(value, ioaddr + CSR10);
+
+ while(--i > 0) {
+ if (ioread32(ioaddr + CSR10) & 0x10000000)
+ break;
+ }
+ spin_unlock_irqrestore(&tp->mii_lock, flags);
+ }
+
+ /* Establish sync by sending 32 logic ones. */
+ for (i = 32; i >= 0; i--) {
+ iowrite32(MDIO_ENB | MDIO_DATA_WRITE1, mdio_addr);
+ mdio_delay();
+ iowrite32(MDIO_ENB | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ /* Shift the command bits out. */
+ for (i = 31; i >= 0; i--) {
+ int dataval = (cmd & (1 << i)) ? MDIO_DATA_WRITE1 : 0;
+ iowrite32(MDIO_ENB | dataval, mdio_addr);
+ mdio_delay();
+ iowrite32(MDIO_ENB | dataval | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ /* Clear out extra bits. */
+ for (i = 2; i > 0; i--) {
+ iowrite32(MDIO_ENB_IN, mdio_addr);
+ mdio_delay();
+ iowrite32(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+
+ spin_unlock_irqrestore(&tp->mii_lock, flags);
+}
+
+
+/* Set up the transceiver control registers for the selected media type. */
+void tulip_select_media(struct net_device *dev, int startup)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ struct mediatable *mtable = tp->mtable;
+ u32 new_csr6;
+ int i;
+
+ if (mtable) {
+ struct medialeaf *mleaf = &mtable->mleaf[tp->cur_index];
+ unsigned char *p = mleaf->leafdata;
+ switch (mleaf->type) {
+ case 0: /* 21140 non-MII xcvr. */
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Using a 21140 non-MII transceiver"
+ " with control setting %2.2x.\n",
+ dev->name, p[1]);
+ dev->if_port = p[0];
+ if (startup)
+ iowrite32(mtable->csr12dir | 0x100, ioaddr + CSR12);
+ iowrite32(p[1], ioaddr + CSR12);
+ new_csr6 = 0x02000000 | ((p[2] & 0x71) << 18);
+ break;
+ case 2: case 4: {
+ u16 setup[5];
+ u32 csr13val, csr14val, csr15dir, csr15val;
+ for (i = 0; i < 5; i++)
+ setup[i] = get_u16(&p[i*2 + 1]);
+
+ dev->if_port = p[0] & MEDIA_MASK;
+ if (tulip_media_cap[dev->if_port] & MediaAlwaysFD)
+ tp->full_duplex = 1;
+
+ if (startup && mtable->has_reset) {
+ struct medialeaf *rleaf = &mtable->mleaf[mtable->has_reset];
+ unsigned char *rst = rleaf->leafdata;
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Resetting the transceiver.\n",
+ dev->name);
+ for (i = 0; i < rst[0]; i++)
+ iowrite32(get_u16(rst + 1 + (i<<1)) << 16, ioaddr + CSR15);
+ }
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: 21143 non-MII %s transceiver control "
+ "%4.4x/%4.4x.\n",
+ dev->name, medianame[dev->if_port], setup[0], setup[1]);
+ if (p[0] & 0x40) { /* SIA (CSR13-15) setup values are provided. */
+ csr13val = setup[0];
+ csr14val = setup[1];
+ csr15dir = (setup[3]<<16) | setup[2];
+ csr15val = (setup[4]<<16) | setup[2];
+ iowrite32(0, ioaddr + CSR13);
+ iowrite32(csr14val, ioaddr + CSR14);
+ iowrite32(csr15dir, ioaddr + CSR15); /* Direction */
+ iowrite32(csr15val, ioaddr + CSR15); /* Data */
+ iowrite32(csr13val, ioaddr + CSR13);
+ } else {
+ csr13val = 1;
+ csr14val = 0;
+ csr15dir = (setup[0]<<16) | 0x0008;
+ csr15val = (setup[1]<<16) | 0x0008;
+ if (dev->if_port <= 4)
+ csr14val = t21142_csr14[dev->if_port];
+ if (startup) {
+ iowrite32(0, ioaddr + CSR13);
+ iowrite32(csr14val, ioaddr + CSR14);
+ }
+ iowrite32(csr15dir, ioaddr + CSR15); /* Direction */
+ iowrite32(csr15val, ioaddr + CSR15); /* Data */
+ if (startup) iowrite32(csr13val, ioaddr + CSR13);
+ }
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Setting CSR15 to %8.8x/%8.8x.\n",
+ dev->name, csr15dir, csr15val);
+ if (mleaf->type == 4)
+ new_csr6 = 0x82020000 | ((setup[2] & 0x71) << 18);
+ else
+ new_csr6 = 0x82420000;
+ break;
+ }
+ case 1: case 3: {
+ int phy_num = p[0];
+ int init_length = p[1];
+ u16 *misc_info, tmp_info;
+
+ dev->if_port = 11;
+ new_csr6 = 0x020E0000;
+ if (mleaf->type == 3) { /* 21142 */
+ u16 *init_sequence = (u16*)(p+2);
+ u16 *reset_sequence = &((u16*)(p+3))[init_length];
+ int reset_length = p[2 + init_length*2];
+ misc_info = reset_sequence + reset_length;
+ if (startup)
+ for (i = 0; i < reset_length; i++)
+ iowrite32(get_u16(&reset_sequence[i]) << 16, ioaddr + CSR15);
+ for (i = 0; i < init_length; i++)
+ iowrite32(get_u16(&init_sequence[i]) << 16, ioaddr + CSR15);
+ } else {
+ u8 *init_sequence = p + 2;
+ u8 *reset_sequence = p + 3 + init_length;
+ int reset_length = p[2 + init_length];
+ misc_info = (u16*)(reset_sequence + reset_length);
+ if (startup) {
+ iowrite32(mtable->csr12dir | 0x100, ioaddr + CSR12);
+ for (i = 0; i < reset_length; i++)
+ iowrite32(reset_sequence[i], ioaddr + CSR12);
+ }
+ for (i = 0; i < init_length; i++)
+ iowrite32(init_sequence[i], ioaddr + CSR12);
+ }
+ tmp_info = get_u16(&misc_info[1]);
+ if (tmp_info)
+ tp->advertising[phy_num] = tmp_info | 1;
+ if (tmp_info && startup < 2) {
+ if (tp->mii_advertise == 0)
+ tp->mii_advertise = tp->advertising[phy_num];
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Advertising %4.4x on MII %d.\n",
+ dev->name, tp->mii_advertise, tp->phys[phy_num]);
+ tulip_mdio_write(dev, tp->phys[phy_num], 4, tp->mii_advertise);
+ }
+ break;
+ }
+ case 5: case 6: {
+ u16 setup[5];
+
+ new_csr6 = 0; /* FIXME */
+
+ for (i = 0; i < 5; i++)
+ setup[i] = get_u16(&p[i*2 + 1]);
+
+ if (startup && mtable->has_reset) {
+ struct medialeaf *rleaf = &mtable->mleaf[mtable->has_reset];
+ unsigned char *rst = rleaf->leafdata;
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Resetting the transceiver.\n",
+ dev->name);
+ for (i = 0; i < rst[0]; i++)
+ iowrite32(get_u16(rst + 1 + (i<<1)) << 16, ioaddr + CSR15);
+ }
+
+ break;
+ }
+ default:
+ printk(KERN_DEBUG "%s: Invalid media table selection %d.\n",
+ dev->name, mleaf->type);
+ new_csr6 = 0x020E0000;
+ }
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Using media type %s, CSR12 is %2.2x.\n",
+ dev->name, medianame[dev->if_port],
+ ioread32(ioaddr + CSR12) & 0xff);
+ } else if (tp->chip_id == LC82C168) {
+ if (startup && ! tp->medialock)
+ dev->if_port = tp->mii_cnt ? 11 : 0;
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: PNIC PHY status is %3.3x, media %s.\n",
+ dev->name, ioread32(ioaddr + 0xB8), medianame[dev->if_port]);
+ if (tp->mii_cnt) {
+ new_csr6 = 0x810C0000;
+ iowrite32(0x0001, ioaddr + CSR15);
+ iowrite32(0x0201B07A, ioaddr + 0xB8);
+ } else if (startup) {
+ /* Start with 10mbps to do autonegotiation. */
+ iowrite32(0x32, ioaddr + CSR12);
+ new_csr6 = 0x00420000;
+ iowrite32(0x0001B078, ioaddr + 0xB8);
+ iowrite32(0x0201B078, ioaddr + 0xB8);
+ } else if (dev->if_port == 3 || dev->if_port == 5) {
+ iowrite32(0x33, ioaddr + CSR12);
+ new_csr6 = 0x01860000;
+ /* Trigger autonegotiation. */
+ iowrite32(startup ? 0x0201F868 : 0x0001F868, ioaddr + 0xB8);
+ } else {
+ iowrite32(0x32, ioaddr + CSR12);
+ new_csr6 = 0x00420000;
+ iowrite32(0x1F078, ioaddr + 0xB8);
+ }
+ } else { /* Unknown chip type with no media table. */
+ if (tp->default_port == 0)
+ dev->if_port = tp->mii_cnt ? 11 : 3;
+ if (tulip_media_cap[dev->if_port] & MediaIsMII) {
+ new_csr6 = 0x020E0000;
+ } else if (tulip_media_cap[dev->if_port] & MediaIsFx) {
+ new_csr6 = 0x02860000;
+ } else
+ new_csr6 = 0x03860000;
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: No media description table, assuming "
+ "%s transceiver, CSR12 %2.2x.\n",
+ dev->name, medianame[dev->if_port],
+ ioread32(ioaddr + CSR12));
+ }
+
+ tp->csr6 = new_csr6 | (tp->csr6 & 0xfdff) | (tp->full_duplex ? 0x0200 : 0);
+ return;
+}
+
+/*
+ Check the MII negotiated duplex and change the CSR6 setting if
+ required.
+ Return 0 if everything is OK.
+ Return < 0 if the transceiver is missing or has no link beat.
+ */
+int tulip_check_duplex(struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ unsigned int bmsr, lpa, negotiated, new_csr6;
+
+ bmsr = tulip_mdio_read(dev, tp->phys[0], MII_BMSR);
+ lpa = tulip_mdio_read(dev, tp->phys[0], MII_LPA);
+ if (tulip_debug > 1)
+ printk(KERN_INFO "%s: MII status %4.4x, Link partner report "
+ "%4.4x.\n", dev->name, bmsr, lpa);
+ if (bmsr == 0xffff)
+ return -2;
+ if ((bmsr & BMSR_LSTATUS) == 0) {
+ int new_bmsr = tulip_mdio_read(dev, tp->phys[0], MII_BMSR);
+ if ((new_bmsr & BMSR_LSTATUS) == 0) {
+ if (tulip_debug > 1)
+ printk(KERN_INFO "%s: No link beat on the MII interface,"
+ " status %4.4x.\n", dev->name, new_bmsr);
+ return -1;
+ }
+ }
+ negotiated = lpa & tp->advertising[0];
+ tp->full_duplex = mii_duplex(tp->full_duplex_lock, negotiated);
+
+ new_csr6 = tp->csr6;
+
+ if (negotiated & LPA_100) new_csr6 &= ~TxThreshold;
+ else new_csr6 |= TxThreshold;
+ if (tp->full_duplex) new_csr6 |= FullDuplex;
+ else new_csr6 &= ~FullDuplex;
+
+ if (new_csr6 != tp->csr6) {
+ tp->csr6 = new_csr6;
+ tulip_restart_rxtx(tp);
+
+ if (tulip_debug > 0)
+ printk(KERN_INFO "%s: Setting %s-duplex based on MII"
+ "#%d link partner capability of %4.4x.\n",
+ dev->name, tp->full_duplex ? "full" : "half",
+ tp->phys[0], lpa);
+ return 1;
+ }
+
+ return 0;
+}
+
+void __devinit tulip_find_mii (struct net_device *dev, int board_idx)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ int phyn, phy_idx = 0;
+ int mii_reg0;
+ int mii_advert;
+ unsigned int to_advert, new_bmcr, ane_switch;
+
+ /* Find the connected MII xcvrs.
+ Doing this in open() would allow detecting external xcvrs later,
+ but takes much time. */
+ for (phyn = 1; phyn <= 32 && phy_idx < sizeof (tp->phys); phyn++) {
+ int phy = phyn & 0x1f;
+ int mii_status = tulip_mdio_read (dev, phy, MII_BMSR);
+ if ((mii_status & 0x8301) == 0x8001 ||
+ ((mii_status & BMSR_100BASE4) == 0
+ && (mii_status & 0x7800) != 0)) {
+ /* preserve Becker logic, gain indentation level */
+ } else {
+ continue;
+ }
+
+ mii_reg0 = tulip_mdio_read (dev, phy, MII_BMCR);
+ mii_advert = tulip_mdio_read (dev, phy, MII_ADVERTISE);
+ ane_switch = 0;
+
+ /* if not advertising at all, gen an
+ * advertising value from the capability
+ * bits in BMSR
+ */
+ if ((mii_advert & ADVERTISE_ALL) == 0) {
+ unsigned int tmpadv = tulip_mdio_read (dev, phy, MII_BMSR);
+ mii_advert = ((tmpadv >> 6) & 0x3e0) | 1;
+ }
+
+ if (tp->mii_advertise) {
+ tp->advertising[phy_idx] =
+ to_advert = tp->mii_advertise;
+ } else if (tp->advertising[phy_idx]) {
+ to_advert = tp->advertising[phy_idx];
+ } else {
+ tp->advertising[phy_idx] =
+ tp->mii_advertise =
+ to_advert = mii_advert;
+ }
+
+ tp->phys[phy_idx++] = phy;
+
+ printk (KERN_INFO "tulip%d: MII transceiver #%d "
+ "config %4.4x status %4.4x advertising %4.4x.\n",
+ board_idx, phy, mii_reg0, mii_status, mii_advert);
+
+ /* Fixup for DLink with miswired PHY. */
+ if (mii_advert != to_advert) {
+ printk (KERN_DEBUG "tulip%d: Advertising %4.4x on PHY %d,"
+ " previously advertising %4.4x.\n",
+ board_idx, to_advert, phy, mii_advert);
+ tulip_mdio_write (dev, phy, 4, to_advert);
+ }
+
+ /* Enable autonegotiation: some boards default to off. */
+ if (tp->default_port == 0) {
+ new_bmcr = mii_reg0 | BMCR_ANENABLE;
+ if (new_bmcr != mii_reg0) {
+ new_bmcr |= BMCR_ANRESTART;
+ ane_switch = 1;
+ }
+ }
+ /* ...or disable nway, if forcing media */
+ else {
+ new_bmcr = mii_reg0 & ~BMCR_ANENABLE;
+ if (new_bmcr != mii_reg0)
+ ane_switch = 1;
+ }
+
+ /* clear out bits we never want at this point */
+ new_bmcr &= ~(BMCR_CTST | BMCR_FULLDPLX | BMCR_ISOLATE |
+ BMCR_PDOWN | BMCR_SPEED100 | BMCR_LOOPBACK |
+ BMCR_RESET);
+
+ if (tp->full_duplex)
+ new_bmcr |= BMCR_FULLDPLX;
+ if (tulip_media_cap[tp->default_port] & MediaIs100)
+ new_bmcr |= BMCR_SPEED100;
+
+ if (new_bmcr != mii_reg0) {
+ /* some phys need the ANE switch to
+ * happen before forced media settings
+ * will "take." However, we write the
+ * same value twice in order not to
+ * confuse the sane phys.
+ */
+ if (ane_switch) {
+ tulip_mdio_write (dev, phy, MII_BMCR, new_bmcr);
+ udelay (10);
+ }
+ tulip_mdio_write (dev, phy, MII_BMCR, new_bmcr);
+ }
+ }
+ tp->mii_cnt = phy_idx;
+ if (tp->mtable && tp->mtable->has_mii && phy_idx == 0) {
+ printk (KERN_INFO "tulip%d: ***WARNING***: No MII transceiver found!\n",
+ board_idx);
+ tp->phys[0] = 1;
+ }
+}
diff --git a/drivers/net/tulip/pnic.c b/drivers/net/tulip/pnic.c
new file mode 100644
index 000000000000..d9980bde7508
--- /dev/null
+++ b/drivers/net/tulip/pnic.c
@@ -0,0 +1,172 @@
+/*
+ drivers/net/tulip/pnic.c
+
+ Maintained by Jeff Garzik <jgarzik@pobox.com>
+ Copyright 2000,2001 The Linux Kernel Team
+ Written/copyright 1994-2001 by Donald Becker.
+
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
+ for more information on this driver, or visit the project
+ Web page at http://sourceforge.net/projects/tulip/
+
+*/
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include "tulip.h"
+
+
+void pnic_do_nway(struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ u32 phy_reg = ioread32(ioaddr + 0xB8);
+ u32 new_csr6 = tp->csr6 & ~0x40C40200;
+
+ if (phy_reg & 0x78000000) { /* Ignore baseT4 */
+ if (phy_reg & 0x20000000) dev->if_port = 5;
+ else if (phy_reg & 0x40000000) dev->if_port = 3;
+ else if (phy_reg & 0x10000000) dev->if_port = 4;
+ else if (phy_reg & 0x08000000) dev->if_port = 0;
+ tp->nwayset = 1;
+ new_csr6 = (dev->if_port & 1) ? 0x01860000 : 0x00420000;
+ iowrite32(0x32 | (dev->if_port & 1), ioaddr + CSR12);
+ if (dev->if_port & 1)
+ iowrite32(0x1F868, ioaddr + 0xB8);
+ if (phy_reg & 0x30000000) {
+ tp->full_duplex = 1;
+ new_csr6 |= 0x00000200;
+ }
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: PNIC autonegotiated status %8.8x, %s.\n",
+ dev->name, phy_reg, medianame[dev->if_port]);
+ if (tp->csr6 != new_csr6) {
+ tp->csr6 = new_csr6;
+ /* Restart Tx */
+ tulip_restart_rxtx(tp);
+ dev->trans_start = jiffies;
+ }
+ }
+}
+
+void pnic_lnk_change(struct net_device *dev, int csr5)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ int phy_reg = ioread32(ioaddr + 0xB8);
+
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: PNIC link changed state %8.8x, CSR5 %8.8x.\n",
+ dev->name, phy_reg, csr5);
+ if (ioread32(ioaddr + CSR5) & TPLnkFail) {
+ iowrite32((ioread32(ioaddr + CSR7) & ~TPLnkFail) | TPLnkPass, ioaddr + CSR7);
+ /* If we use an external MII, then we mustn't use the
+ * internal negotiation.
+ */
+ if (tulip_media_cap[dev->if_port] & MediaIsMII)
+ return;
+ if (! tp->nwayset || jiffies - dev->trans_start > 1*HZ) {
+ tp->csr6 = 0x00420000 | (tp->csr6 & 0x0000fdff);
+ iowrite32(tp->csr6, ioaddr + CSR6);
+ iowrite32(0x30, ioaddr + CSR12);
+ iowrite32(0x0201F078, ioaddr + 0xB8); /* Turn on autonegotiation. */
+ dev->trans_start = jiffies;
+ }
+ } else if (ioread32(ioaddr + CSR5) & TPLnkPass) {
+ if (tulip_media_cap[dev->if_port] & MediaIsMII) {
+ spin_lock(&tp->lock);
+ tulip_check_duplex(dev);
+ spin_unlock(&tp->lock);
+ } else {
+ pnic_do_nway(dev);
+ }
+ iowrite32((ioread32(ioaddr + CSR7) & ~TPLnkPass) | TPLnkFail, ioaddr + CSR7);
+ }
+}
+
+void pnic_timer(unsigned long data)
+{
+ struct net_device *dev = (struct net_device *)data;
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ int next_tick = 60*HZ;
+
+ if(!ioread32(ioaddr + CSR7)) {
+ /* the timer was called due to a work overflow
+ * in the interrupt handler. Skip the connection
+ * checks, the nic is definitively speaking with
+ * his link partner.
+ */
+ goto too_good_connection;
+ }
+
+ if (tulip_media_cap[dev->if_port] & MediaIsMII) {
+ spin_lock_irq(&tp->lock);
+ if (tulip_check_duplex(dev) > 0)
+ next_tick = 3*HZ;
+ spin_unlock_irq(&tp->lock);
+ } else {
+ int csr12 = ioread32(ioaddr + CSR12);
+ int new_csr6 = tp->csr6 & ~0x40C40200;
+ int phy_reg = ioread32(ioaddr + 0xB8);
+ int csr5 = ioread32(ioaddr + CSR5);
+
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: PNIC timer PHY status %8.8x, %s "
+ "CSR5 %8.8x.\n",
+ dev->name, phy_reg, medianame[dev->if_port], csr5);
+ if (phy_reg & 0x04000000) { /* Remote link fault */
+ iowrite32(0x0201F078, ioaddr + 0xB8);
+ next_tick = 1*HZ;
+ tp->nwayset = 0;
+ } else if (phy_reg & 0x78000000) { /* Ignore baseT4 */
+ pnic_do_nway(dev);
+ next_tick = 60*HZ;
+ } else if (csr5 & TPLnkFail) { /* 100baseTx link beat */
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: %s link beat failed, CSR12 %4.4x, "
+ "CSR5 %8.8x, PHY %3.3x.\n",
+ dev->name, medianame[dev->if_port], csr12,
+ ioread32(ioaddr + CSR5), ioread32(ioaddr + 0xB8));
+ next_tick = 3*HZ;
+ if (tp->medialock) {
+ } else if (tp->nwayset && (dev->if_port & 1)) {
+ next_tick = 1*HZ;
+ } else if (dev->if_port == 0) {
+ dev->if_port = 3;
+ iowrite32(0x33, ioaddr + CSR12);
+ new_csr6 = 0x01860000;
+ iowrite32(0x1F868, ioaddr + 0xB8);
+ } else {
+ dev->if_port = 0;
+ iowrite32(0x32, ioaddr + CSR12);
+ new_csr6 = 0x00420000;
+ iowrite32(0x1F078, ioaddr + 0xB8);
+ }
+ if (tp->csr6 != new_csr6) {
+ tp->csr6 = new_csr6;
+ /* Restart Tx */
+ tulip_restart_rxtx(tp);
+ dev->trans_start = jiffies;
+ if (tulip_debug > 1)
+ printk(KERN_INFO "%s: Changing PNIC configuration to %s "
+ "%s-duplex, CSR6 %8.8x.\n",
+ dev->name, medianame[dev->if_port],
+ tp->full_duplex ? "full" : "half", new_csr6);
+ }
+ }
+ }
+too_good_connection:
+ mod_timer(&tp->timer, RUN_AT(next_tick));
+ if(!ioread32(ioaddr + CSR7)) {
+ if (tulip_debug > 1)
+ printk(KERN_INFO "%s: sw timer wakeup.\n", dev->name);
+ disable_irq(dev->irq);
+ tulip_refill_rx(dev);
+ enable_irq(dev->irq);
+ iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7);
+ }
+}
diff --git a/drivers/net/tulip/pnic2.c b/drivers/net/tulip/pnic2.c
new file mode 100644
index 000000000000..55f4a9a631bc
--- /dev/null
+++ b/drivers/net/tulip/pnic2.c
@@ -0,0 +1,407 @@
+/*
+ drivers/net/tulip/pnic2.c
+
+ Maintained by Jeff Garzik <jgarzik@pobox.com>
+ Copyright 2000,2001 The Linux Kernel Team
+ Written/copyright 1994-2001 by Donald Becker.
+ Modified to hep support PNIC_II by Kevin B. Hendricks
+
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
+ for more information on this driver, or visit the project
+ Web page at http://sourceforge.net/projects/tulip/
+
+*/
+
+
+/* Understanding the PNIC_II - everything is this file is based
+ * on the PNIC_II_PDF datasheet which is sorely lacking in detail
+ *
+ * As I understand things, here are the registers and bits that
+ * explain the masks and constants used in this file that are
+ * either different from the 21142/3 or important for basic operation.
+ *
+ *
+ * CSR 6 (mask = 0xfe3bd1fd of bits not to change)
+ * -----
+ * Bit 24 - SCR
+ * Bit 23 - PCS
+ * Bit 22 - TTM (Trasmit Threshold Mode)
+ * Bit 18 - Port Select
+ * Bit 13 - Start - 1, Stop - 0 Transmissions
+ * Bit 11:10 - Loop Back Operation Mode
+ * Bit 9 - Full Duplex mode (Advertise 10BaseT-FD is CSR14<7> is set)
+ * Bit 1 - Start - 1, Stop - 0 Receive
+ *
+ *
+ * CSR 14 (mask = 0xfff0ee39 of bits not to change)
+ * ------
+ * Bit 19 - PAUSE-Pause
+ * Bit 18 - Advertise T4
+ * Bit 17 - Advertise 100baseTx-FD
+ * Bit 16 - Advertise 100baseTx-HD
+ * Bit 12 - LTE - Link Test Enable
+ * Bit 7 - ANE - Auto Negotiate Enable
+ * Bit 6 - HDE - Advertise 10baseT-HD
+ * Bit 2 - Reset to Power down - kept as 1 for normal operation
+ * Bit 1 - Loop Back enable for 10baseT MCC
+ *
+ *
+ * CSR 12
+ * ------
+ * Bit 25 - Partner can do T4
+ * Bit 24 - Partner can do 100baseTx-FD
+ * Bit 23 - Partner can do 100baseTx-HD
+ * Bit 22 - Partner can do 10baseT-FD
+ * Bit 21 - Partner can do 10baseT-HD
+ * Bit 15 - LPN is 1 if all above bits are valid other wise 0
+ * Bit 14:12 - autonegotiation state (write 001 to start autonegotiate)
+ * Bit 3 - Autopolarity state
+ * Bit 2 - LS10B - link state of 10baseT 0 - good, 1 - failed
+ * Bit 1 - LS100B - link state of 100baseT 0 - good, 1- faild
+ *
+ *
+ * Data Port Selection Info
+ *-------------------------
+ *
+ * CSR14<7> CSR6<18> CSR6<22> CSR6<23> CSR6<24> MODE/PORT
+ * 1 0 0 (X) 0 (X) 1 NWAY
+ * 0 0 1 0 (X) 0 10baseT
+ * 0 1 0 1 1 (X) 100baseT
+ *
+ *
+ */
+
+
+
+#include <linux/pci.h>
+#include "tulip.h"
+#include <linux/delay.h>
+
+
+void pnic2_timer(unsigned long data)
+{
+ struct net_device *dev = (struct net_device *)data;
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ int next_tick = 60*HZ;
+
+ if (tulip_debug > 3)
+ printk(KERN_INFO"%s: PNIC2 negotiation status %8.8x.\n",
+ dev->name,ioread32(ioaddr + CSR12));
+
+ if (next_tick) {
+ mod_timer(&tp->timer, RUN_AT(next_tick));
+ }
+}
+
+
+void pnic2_start_nway(struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ int csr14;
+ int csr12;
+
+ /* set up what to advertise during the negotiation */
+
+ /* load in csr14 and mask off bits not to touch
+ * comment at top of file explains mask value
+ */
+ csr14 = (ioread32(ioaddr + CSR14) & 0xfff0ee39);
+
+ /* bit 17 - advetise 100baseTx-FD */
+ if (tp->sym_advertise & 0x0100) csr14 |= 0x00020000;
+
+ /* bit 16 - advertise 100baseTx-HD */
+ if (tp->sym_advertise & 0x0080) csr14 |= 0x00010000;
+
+ /* bit 6 - advertise 10baseT-HD */
+ if (tp->sym_advertise & 0x0020) csr14 |= 0x00000040;
+
+ /* Now set bit 12 Link Test Enable, Bit 7 Autonegotiation Enable
+ * and bit 0 Don't PowerDown 10baseT
+ */
+ csr14 |= 0x00001184;
+
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Restarting PNIC2 autonegotiation, "
+ "csr14=%8.8x.\n", dev->name, csr14);
+
+ /* tell pnic2_lnk_change we are doing an nway negotiation */
+ dev->if_port = 0;
+ tp->nway = tp->mediasense = 1;
+ tp->nwayset = tp->lpar = 0;
+
+ /* now we have to set up csr6 for NWAY state */
+
+ tp->csr6 = ioread32(ioaddr + CSR6);
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: On Entry to Nway, "
+ "csr6=%8.8x.\n", dev->name, tp->csr6);
+
+ /* mask off any bits not to touch
+ * comment at top of file explains mask value
+ */
+ tp->csr6 = tp->csr6 & 0xfe3bd1fd;
+
+ /* don't forget that bit 9 is also used for advertising */
+ /* advertise 10baseT-FD for the negotiation (bit 9) */
+ if (tp->sym_advertise & 0x0040) tp->csr6 |= 0x00000200;
+
+ /* set bit 24 for nway negotiation mode ...
+ * see Data Port Selection comment at top of file
+ * and "Stop" - reset both Transmit (bit 13) and Receive (bit 1)
+ */
+ tp->csr6 |= 0x01000000;
+ iowrite32(csr14, ioaddr + CSR14);
+ iowrite32(tp->csr6, ioaddr + CSR6);
+ udelay(100);
+
+ /* all set up so now force the negotiation to begin */
+
+ /* read in current values and mask off all but the
+ * Autonegotiation bits 14:12. Writing a 001 to those bits
+ * should start the autonegotiation
+ */
+ csr12 = (ioread32(ioaddr + CSR12) & 0xffff8fff);
+ csr12 |= 0x1000;
+ iowrite32(csr12, ioaddr + CSR12);
+}
+
+
+
+void pnic2_lnk_change(struct net_device *dev, int csr5)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ int csr14;
+
+ /* read the staus register to find out what is up */
+ int csr12 = ioread32(ioaddr + CSR12);
+
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: PNIC2 link status interrupt %8.8x, "
+ " CSR5 %x, %8.8x.\n", dev->name, csr12,
+ csr5, ioread32(ioaddr + CSR14));
+
+ /* If NWay finished and we have a negotiated partner capability.
+ * check bits 14:12 for bit pattern 101 - all is good
+ */
+ if (tp->nway && !tp->nwayset) {
+
+ /* we did an auto negotiation */
+
+ if ((csr12 & 0x7000) == 0x5000) {
+
+ /* negotiation ended successfully */
+
+ /* get the link partners reply and mask out all but
+ * bits 24-21 which show the partners capabilites
+ * and match those to what we advertised
+ *
+ * then begin to interpret the results of the negotiation.
+ * Always go in this order : (we are ignoring T4 for now)
+ * 100baseTx-FD, 100baseTx-HD, 10baseT-FD, 10baseT-HD
+ */
+
+ int negotiated = ((csr12 >> 16) & 0x01E0) & tp->sym_advertise;
+ tp->lpar = (csr12 >> 16);
+ tp->nwayset = 1;
+
+ if (negotiated & 0x0100) dev->if_port = 5;
+ else if (negotiated & 0x0080) dev->if_port = 3;
+ else if (negotiated & 0x0040) dev->if_port = 4;
+ else if (negotiated & 0x0020) dev->if_port = 0;
+ else {
+ if (tulip_debug > 1)
+ printk(KERN_INFO "%s: funny autonegotiate result "
+ "csr12 %8.8x advertising %4.4x\n",
+ dev->name, csr12, tp->sym_advertise);
+ tp->nwayset = 0;
+ /* so check if 100baseTx link state is okay */
+ if ((csr12 & 2) == 0 && (tp->sym_advertise & 0x0180))
+ dev->if_port = 3;
+ }
+
+ /* now record the duplex that was negotiated */
+ tp->full_duplex = 0;
+ if ((dev->if_port == 4) || (dev->if_port == 5))
+ tp->full_duplex = 1;
+
+ if (tulip_debug > 1) {
+ if (tp->nwayset)
+ printk(KERN_INFO "%s: Switching to %s based on link "
+ "negotiation %4.4x & %4.4x = %4.4x.\n",
+ dev->name, medianame[dev->if_port],
+ tp->sym_advertise, tp->lpar, negotiated);
+ }
+
+ /* remember to turn off bit 7 - autonegotiate
+ * enable so we can properly end nway mode and
+ * set duplex (ie. use csr6<9> again)
+ */
+ csr14 = (ioread32(ioaddr + CSR14) & 0xffffff7f);
+ iowrite32(csr14,ioaddr + CSR14);
+
+
+ /* now set the data port and operating mode
+ * (see the Data Port Selection comments at
+ * the top of the file
+ */
+
+ /* get current csr6 and mask off bits not to touch */
+ /* see comment at top of file */
+
+ tp->csr6 = (ioread32(ioaddr + CSR6) & 0xfe3bd1fd);
+
+ /* so if using if_port 3 or 5 then select the 100baseT
+ * port else select the 10baseT port.
+ * See the Data Port Selection table at the top
+ * of the file which was taken from the PNIC_II.PDF
+ * datasheet
+ */
+ if (dev->if_port & 1) tp->csr6 |= 0x01840000;
+ else tp->csr6 |= 0x00400000;
+
+ /* now set the full duplex bit appropriately */
+ if (tp->full_duplex) tp->csr6 |= 0x00000200;
+
+ iowrite32(1, ioaddr + CSR13);
+
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "%s: Setting CSR6 %8.8x/%x CSR12 "
+ "%8.8x.\n", dev->name, tp->csr6,
+ ioread32(ioaddr + CSR6), ioread32(ioaddr + CSR12));
+
+ /* now the following actually writes out the
+ * new csr6 values
+ */
+ tulip_start_rxtx(tp);
+
+ return;
+
+ } else {
+ printk(KERN_INFO "%s: Autonegotiation failed, "
+ "using %s, link beat status %4.4x.\n",
+ dev->name, medianame[dev->if_port], csr12);
+
+ /* remember to turn off bit 7 - autonegotiate
+ * enable so we don't forget
+ */
+ csr14 = (ioread32(ioaddr + CSR14) & 0xffffff7f);
+ iowrite32(csr14,ioaddr + CSR14);
+
+ /* what should we do when autonegotiate fails?
+ * should we try again or default to baseline
+ * case. I just don't know.
+ *
+ * for now default to some baseline case
+ */
+
+ dev->if_port = 0;
+ tp->nway = 0;
+ tp->nwayset = 1;
+
+ /* set to 10baseTx-HD - see Data Port Selection
+ * comment given at the top of the file
+ */
+ tp->csr6 = (ioread32(ioaddr + CSR6) & 0xfe3bd1fd);
+ tp->csr6 |= 0x00400000;
+
+ tulip_restart_rxtx(tp);
+
+ return;
+
+ }
+ }
+
+ if ((tp->nwayset && (csr5 & 0x08000000)
+ && (dev->if_port == 3 || dev->if_port == 5)
+ && (csr12 & 2) == 2) || (tp->nway && (csr5 & (TPLnkFail)))) {
+
+ /* Link blew? Maybe restart NWay. */
+
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "%s: Ugh! Link blew?\n", dev->name);
+
+ del_timer_sync(&tp->timer);
+ pnic2_start_nway(dev);
+ tp->timer.expires = RUN_AT(3*HZ);
+ add_timer(&tp->timer);
+
+ return;
+ }
+
+
+ if (dev->if_port == 3 || dev->if_port == 5) {
+
+ /* we are at 100mb and a potential link change occurred */
+
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: PNIC2 %s link beat %s.\n",
+ dev->name, medianame[dev->if_port],
+ (csr12 & 2) ? "failed" : "good");
+
+ /* check 100 link beat */
+
+ tp->nway = 0;
+ tp->nwayset = 1;
+
+ /* if failed then try doing an nway to get in sync */
+ if ((csr12 & 2) && ! tp->medialock) {
+ del_timer_sync(&tp->timer);
+ pnic2_start_nway(dev);
+ tp->timer.expires = RUN_AT(3*HZ);
+ add_timer(&tp->timer);
+ }
+
+ return;
+ }
+
+ if (dev->if_port == 0 || dev->if_port == 4) {
+
+ /* we are at 10mb and a potential link change occurred */
+
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: PNIC2 %s link beat %s.\n",
+ dev->name, medianame[dev->if_port],
+ (csr12 & 4) ? "failed" : "good");
+
+
+ tp->nway = 0;
+ tp->nwayset = 1;
+
+ /* if failed, try doing an nway to get in sync */
+ if ((csr12 & 4) && ! tp->medialock) {
+ del_timer_sync(&tp->timer);
+ pnic2_start_nway(dev);
+ tp->timer.expires = RUN_AT(3*HZ);
+ add_timer(&tp->timer);
+ }
+
+ return;
+ }
+
+
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: PNIC2 Link Change Default?\n",dev->name);
+
+ /* if all else fails default to trying 10baseT-HD */
+ dev->if_port = 0;
+
+ /* make sure autonegotiate enable is off */
+ csr14 = (ioread32(ioaddr + CSR14) & 0xffffff7f);
+ iowrite32(csr14,ioaddr + CSR14);
+
+ /* set to 10baseTx-HD - see Data Port Selection
+ * comment given at the top of the file
+ */
+ tp->csr6 = (ioread32(ioaddr + CSR6) & 0xfe3bd1fd);
+ tp->csr6 |= 0x00400000;
+
+ tulip_restart_rxtx(tp);
+}
+
diff --git a/drivers/net/tulip/timer.c b/drivers/net/tulip/timer.c
new file mode 100644
index 000000000000..691568283553
--- /dev/null
+++ b/drivers/net/tulip/timer.c
@@ -0,0 +1,175 @@
+/*
+ drivers/net/tulip/timer.c
+
+ Maintained by Jeff Garzik <jgarzik@pobox.com>
+ Copyright 2000,2001 The Linux Kernel Team
+ Written/copyright 1994-2001 by Donald Becker.
+
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
+ for more information on this driver, or visit the project
+ Web page at http://sourceforge.net/projects/tulip/
+
+*/
+
+#include <linux/pci.h>
+#include "tulip.h"
+
+
+void tulip_timer(unsigned long data)
+{
+ struct net_device *dev = (struct net_device *)data;
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ u32 csr12 = ioread32(ioaddr + CSR12);
+ int next_tick = 2*HZ;
+
+ if (tulip_debug > 2) {
+ printk(KERN_DEBUG "%s: Media selection tick, %s, status %8.8x mode"
+ " %8.8x SIA %8.8x %8.8x %8.8x %8.8x.\n",
+ dev->name, medianame[dev->if_port], ioread32(ioaddr + CSR5),
+ ioread32(ioaddr + CSR6), csr12, ioread32(ioaddr + CSR13),
+ ioread32(ioaddr + CSR14), ioread32(ioaddr + CSR15));
+ }
+ switch (tp->chip_id) {
+ case DC21140:
+ case DC21142:
+ case MX98713:
+ case COMPEX9881:
+ case DM910X:
+ case ULI526X:
+ default: {
+ struct medialeaf *mleaf;
+ unsigned char *p;
+ if (tp->mtable == NULL) { /* No EEPROM info, use generic code. */
+ /* Not much that can be done.
+ Assume this a generic MII or SYM transceiver. */
+ next_tick = 60*HZ;
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "%s: network media monitor CSR6 %8.8x "
+ "CSR12 0x%2.2x.\n",
+ dev->name, ioread32(ioaddr + CSR6), csr12 & 0xff);
+ break;
+ }
+ mleaf = &tp->mtable->mleaf[tp->cur_index];
+ p = mleaf->leafdata;
+ switch (mleaf->type) {
+ case 0: case 4: {
+ /* Type 0 serial or 4 SYM transceiver. Check the link beat bit. */
+ int offset = mleaf->type == 4 ? 5 : 2;
+ s8 bitnum = p[offset];
+ if (p[offset+1] & 0x80) {
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG"%s: Transceiver monitor tick "
+ "CSR12=%#2.2x, no media sense.\n",
+ dev->name, csr12);
+ if (mleaf->type == 4) {
+ if (mleaf->media == 3 && (csr12 & 0x02))
+ goto select_next_media;
+ }
+ break;
+ }
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "%s: Transceiver monitor tick: CSR12=%#2.2x"
+ " bit %d is %d, expecting %d.\n",
+ dev->name, csr12, (bitnum >> 1) & 7,
+ (csr12 & (1 << ((bitnum >> 1) & 7))) != 0,
+ (bitnum >= 0));
+ /* Check that the specified bit has the proper value. */
+ if ((bitnum < 0) !=
+ ((csr12 & (1 << ((bitnum >> 1) & 7))) != 0)) {
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "%s: Link beat detected for %s.\n", dev->name,
+ medianame[mleaf->media & MEDIA_MASK]);
+ if ((p[2] & 0x61) == 0x01) /* Bogus Znyx board. */
+ goto actually_mii;
+ netif_carrier_on(dev);
+ break;
+ }
+ netif_carrier_off(dev);
+ if (tp->medialock)
+ break;
+ select_next_media:
+ if (--tp->cur_index < 0) {
+ /* We start again, but should instead look for default. */
+ tp->cur_index = tp->mtable->leafcount - 1;
+ }
+ dev->if_port = tp->mtable->mleaf[tp->cur_index].media;
+ if (tulip_media_cap[dev->if_port] & MediaIsFD)
+ goto select_next_media; /* Skip FD entries. */
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: No link beat on media %s,"
+ " trying transceiver type %s.\n",
+ dev->name, medianame[mleaf->media & MEDIA_MASK],
+ medianame[tp->mtable->mleaf[tp->cur_index].media]);
+ tulip_select_media(dev, 0);
+ /* Restart the transmit process. */
+ tulip_restart_rxtx(tp);
+ next_tick = (24*HZ)/10;
+ break;
+ }
+ case 1: case 3: /* 21140, 21142 MII */
+ actually_mii:
+ if (tulip_check_duplex(dev) < 0) {
+ netif_carrier_off(dev);
+ next_tick = 3*HZ;
+ } else {
+ netif_carrier_on(dev);
+ next_tick = 60*HZ;
+ }
+ break;
+ case 2: /* 21142 serial block has no link beat. */
+ default:
+ break;
+ }
+ }
+ break;
+ }
+ /* mod_timer synchronizes us with potential add_timer calls
+ * from interrupts.
+ */
+ mod_timer(&tp->timer, RUN_AT(next_tick));
+}
+
+
+void mxic_timer(unsigned long data)
+{
+ struct net_device *dev = (struct net_device *)data;
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ int next_tick = 60*HZ;
+
+ if (tulip_debug > 3) {
+ printk(KERN_INFO"%s: MXIC negotiation status %8.8x.\n", dev->name,
+ ioread32(ioaddr + CSR12));
+ }
+ if (next_tick) {
+ mod_timer(&tp->timer, RUN_AT(next_tick));
+ }
+}
+
+
+void comet_timer(unsigned long data)
+{
+ struct net_device *dev = (struct net_device *)data;
+ struct tulip_private *tp = netdev_priv(dev);
+ int next_tick = 60*HZ;
+
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Comet link status %4.4x partner capability "
+ "%4.4x.\n",
+ dev->name,
+ tulip_mdio_read(dev, tp->phys[0], 1),
+ tulip_mdio_read(dev, tp->phys[0], 5));
+ /* mod_timer synchronizes us with potential add_timer calls
+ * from interrupts.
+ */
+ if (tulip_check_duplex(dev) < 0)
+ { netif_carrier_off(dev); }
+ else
+ { netif_carrier_on(dev); }
+ mod_timer(&tp->timer, RUN_AT(next_tick));
+}
+
diff --git a/drivers/net/tulip/tulip.h b/drivers/net/tulip/tulip.h
new file mode 100644
index 000000000000..20346d847d9e
--- /dev/null
+++ b/drivers/net/tulip/tulip.h
@@ -0,0 +1,493 @@
+/*
+ drivers/net/tulip/tulip.h
+
+ Copyright 2000,2001 The Linux Kernel Team
+ Written/copyright 1994-2001 by Donald Becker.
+
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
+ for more information on this driver, or visit the project
+ Web page at http://sourceforge.net/projects/tulip/
+
+*/
+
+#ifndef __NET_TULIP_H__
+#define __NET_TULIP_H__
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/netdevice.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+
+
+/* undefine, or define to various debugging levels (>4 == obscene levels) */
+#define TULIP_DEBUG 1
+
+/* undefine USE_IO_OPS for MMIO, define for PIO */
+#ifdef CONFIG_TULIP_MMIO
+# undef USE_IO_OPS
+#else
+# define USE_IO_OPS 1
+#endif
+
+
+
+struct tulip_chip_table {
+ char *chip_name;
+ int io_size;
+ int valid_intrs; /* CSR7 interrupt enable settings */
+ int flags;
+ void (*media_timer) (unsigned long data);
+};
+
+
+enum tbl_flag {
+ HAS_MII = 0x0001,
+ HAS_MEDIA_TABLE = 0x0002,
+ CSR12_IN_SROM = 0x0004,
+ ALWAYS_CHECK_MII = 0x0008,
+ HAS_ACPI = 0x0010,
+ MC_HASH_ONLY = 0x0020, /* Hash-only multicast filter. */
+ HAS_PNICNWAY = 0x0080,
+ HAS_NWAY = 0x0040, /* Uses internal NWay xcvr. */
+ HAS_INTR_MITIGATION = 0x0100,
+ IS_ASIX = 0x0200,
+ HAS_8023X = 0x0400,
+ COMET_MAC_ADDR = 0x0800,
+ HAS_PCI_MWI = 0x1000,
+ HAS_PHY_IRQ = 0x2000,
+ HAS_SWAPPED_SEEPROM = 0x4000,
+ NEEDS_FAKE_MEDIA_TABLE = 0x8000,
+};
+
+
+/* chip types. careful! order is VERY IMPORTANT here, as these
+ * are used throughout the driver as indices into arrays */
+/* Note 21142 == 21143. */
+enum chips {
+ DC21040 = 0,
+ DC21041 = 1,
+ DC21140 = 2,
+ DC21142 = 3, DC21143 = 3,
+ LC82C168,
+ MX98713,
+ MX98715,
+ MX98725,
+ AX88140,
+ PNIC2,
+ COMET,
+ COMPEX9881,
+ I21145,
+ DM910X,
+ CONEXANT,
+ ULI526X
+};
+
+
+enum MediaIs {
+ MediaIsFD = 1,
+ MediaAlwaysFD = 2,
+ MediaIsMII = 4,
+ MediaIsFx = 8,
+ MediaIs100 = 16
+};
+
+
+/* Offsets to the Command and Status Registers, "CSRs". All accesses
+ must be longword instructions and quadword aligned. */
+enum tulip_offsets {
+ CSR0 = 0,
+ CSR1 = 0x08,
+ CSR2 = 0x10,
+ CSR3 = 0x18,
+ CSR4 = 0x20,
+ CSR5 = 0x28,
+ CSR6 = 0x30,
+ CSR7 = 0x38,
+ CSR8 = 0x40,
+ CSR9 = 0x48,
+ CSR10 = 0x50,
+ CSR11 = 0x58,
+ CSR12 = 0x60,
+ CSR13 = 0x68,
+ CSR14 = 0x70,
+ CSR15 = 0x78,
+};
+
+/* register offset and bits for CFDD PCI config reg */
+enum pci_cfg_driver_reg {
+ CFDD = 0x40,
+ CFDD_Sleep = (1 << 31),
+ CFDD_Snooze = (1 << 30),
+};
+
+#define RxPollInt (RxIntr|RxNoBuf|RxDied|RxJabber)
+
+/* The bits in the CSR5 status registers, mostly interrupt sources. */
+enum status_bits {
+ TimerInt = 0x800,
+ SytemError = 0x2000,
+ TPLnkFail = 0x1000,
+ TPLnkPass = 0x10,
+ NormalIntr = 0x10000,
+ AbnormalIntr = 0x8000,
+ RxJabber = 0x200,
+ RxDied = 0x100,
+ RxNoBuf = 0x80,
+ RxIntr = 0x40,
+ TxFIFOUnderflow = 0x20,
+ TxJabber = 0x08,
+ TxNoBuf = 0x04,
+ TxDied = 0x02,
+ TxIntr = 0x01,
+};
+
+/* bit mask for CSR5 TX/RX process state */
+#define CSR5_TS 0x00700000
+#define CSR5_RS 0x000e0000
+
+enum tulip_mode_bits {
+ TxThreshold = (1 << 22),
+ FullDuplex = (1 << 9),
+ TxOn = 0x2000,
+ AcceptBroadcast = 0x0100,
+ AcceptAllMulticast = 0x0080,
+ AcceptAllPhys = 0x0040,
+ AcceptRunt = 0x0008,
+ RxOn = 0x0002,
+ RxTx = (TxOn | RxOn),
+};
+
+
+enum tulip_busconfig_bits {
+ MWI = (1 << 24),
+ MRL = (1 << 23),
+ MRM = (1 << 21),
+ CALShift = 14,
+ BurstLenShift = 8,
+};
+
+
+/* The Tulip Rx and Tx buffer descriptors. */
+struct tulip_rx_desc {
+ s32 status;
+ s32 length;
+ u32 buffer1;
+ u32 buffer2;
+};
+
+
+struct tulip_tx_desc {
+ s32 status;
+ s32 length;
+ u32 buffer1;
+ u32 buffer2; /* We use only buffer 1. */
+};
+
+
+enum desc_status_bits {
+ DescOwned = 0x80000000,
+ RxDescFatalErr = 0x8000,
+ RxWholePkt = 0x0300,
+};
+
+
+enum t21143_csr6_bits {
+ csr6_sc = (1<<31),
+ csr6_ra = (1<<30),
+ csr6_ign_dest_msb = (1<<26),
+ csr6_mbo = (1<<25),
+ csr6_scr = (1<<24), /* scramble mode flag: can't be set */
+ csr6_pcs = (1<<23), /* Enables PCS functions (symbol mode requires csr6_ps be set) default is set */
+ csr6_ttm = (1<<22), /* Transmit Threshold Mode, set for 10baseT, 0 for 100BaseTX */
+ csr6_sf = (1<<21), /* Store and forward. If set ignores TR bits */
+ csr6_hbd = (1<<19), /* Heart beat disable. Disables SQE function in 10baseT */
+ csr6_ps = (1<<18), /* Port Select. 0 (defualt) = 10baseT, 1 = 100baseTX: can't be set */
+ csr6_ca = (1<<17), /* Collision Offset Enable. If set uses special algorithm in low collision situations */
+ csr6_trh = (1<<15), /* Transmit Threshold high bit */
+ csr6_trl = (1<<14), /* Transmit Threshold low bit */
+
+ /***************************************************************
+ * This table shows transmit threshold values based on media *
+ * and these two registers (from PNIC1 & 2 docs) Note: this is *
+ * all meaningless if sf is set. *
+ ***************************************************************/
+
+ /***********************************
+ * (trh,trl) * 100BaseTX * 10BaseT *
+ ***********************************
+ * (0,0) * 128 * 72 *
+ * (0,1) * 256 * 96 *
+ * (1,0) * 512 * 128 *
+ * (1,1) * 1024 * 160 *
+ ***********************************/
+
+ csr6_fc = (1<<12), /* Forces a collision in next transmission (for testing in loopback mode) */
+ csr6_om_int_loop = (1<<10), /* internal (FIFO) loopback flag */
+ csr6_om_ext_loop = (1<<11), /* external (PMD) loopback flag */
+ /* set both and you get (PHY) loopback */
+ csr6_fd = (1<<9), /* Full duplex mode, disables hearbeat, no loopback */
+ csr6_pm = (1<<7), /* Pass All Multicast */
+ csr6_pr = (1<<6), /* Promiscuous mode */
+ csr6_sb = (1<<5), /* Start(1)/Stop(0) backoff counter */
+ csr6_if = (1<<4), /* Inverse Filtering, rejects only addresses in address table: can't be set */
+ csr6_pb = (1<<3), /* Pass Bad Frames, (1) causes even bad frames to be passed on */
+ csr6_ho = (1<<2), /* Hash-only filtering mode: can't be set */
+ csr6_hp = (1<<0), /* Hash/Perfect Receive Filtering Mode: can't be set */
+
+ csr6_mask_capture = (csr6_sc | csr6_ca),
+ csr6_mask_defstate = (csr6_mask_capture | csr6_mbo),
+ csr6_mask_hdcap = (csr6_mask_defstate | csr6_hbd | csr6_ps),
+ csr6_mask_hdcaptt = (csr6_mask_hdcap | csr6_trh | csr6_trl),
+ csr6_mask_fullcap = (csr6_mask_hdcaptt | csr6_fd),
+ csr6_mask_fullpromisc = (csr6_pr | csr6_pm),
+ csr6_mask_filters = (csr6_hp | csr6_ho | csr6_if),
+ csr6_mask_100bt = (csr6_scr | csr6_pcs | csr6_hbd),
+};
+
+
+/* Keep the ring sizes a power of two for efficiency.
+ Making the Tx ring too large decreases the effectiveness of channel
+ bonding and packet priority.
+ There are no ill effects from too-large receive rings. */
+
+#define TX_RING_SIZE 32
+#define RX_RING_SIZE 128
+#define MEDIA_MASK 31
+
+#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer. */
+
+#define TULIP_MIN_CACHE_LINE 8 /* in units of 32-bit words */
+
+#if defined(__sparc__) || defined(__hppa__)
+/* The UltraSparc PCI controllers will disconnect at every 64-byte
+ * crossing anyways so it makes no sense to tell Tulip to burst
+ * any more than that.
+ */
+#define TULIP_MAX_CACHE_LINE 16 /* in units of 32-bit words */
+#else
+#define TULIP_MAX_CACHE_LINE 32 /* in units of 32-bit words */
+#endif
+
+
+/* Ring-wrap flag in length field, use for last ring entry.
+ 0x01000000 means chain on buffer2 address,
+ 0x02000000 means use the ring start address in CSR2/3.
+ Note: Some work-alike chips do not function correctly in chained mode.
+ The ASIX chip works only in chained mode.
+ Thus we indicates ring mode, but always write the 'next' field for
+ chained mode as well.
+*/
+#define DESC_RING_WRAP 0x02000000
+
+
+#define EEPROM_SIZE 512 /* 2 << EEPROM_ADDRLEN */
+
+
+#define RUN_AT(x) (jiffies + (x))
+
+#if defined(__i386__) /* AKA get_unaligned() */
+#define get_u16(ptr) (*(u16 *)(ptr))
+#else
+#define get_u16(ptr) (((u8*)(ptr))[0] + (((u8*)(ptr))[1]<<8))
+#endif
+
+struct medialeaf {
+ u8 type;
+ u8 media;
+ unsigned char *leafdata;
+};
+
+
+struct mediatable {
+ u16 defaultmedia;
+ u8 leafcount;
+ u8 csr12dir; /* General purpose pin directions. */
+ unsigned has_mii:1;
+ unsigned has_nonmii:1;
+ unsigned has_reset:6;
+ u32 csr15dir;
+ u32 csr15val; /* 21143 NWay setting. */
+ struct medialeaf mleaf[0];
+};
+
+
+struct mediainfo {
+ struct mediainfo *next;
+ int info_type;
+ int index;
+ unsigned char *info;
+};
+
+struct ring_info {
+ struct sk_buff *skb;
+ dma_addr_t mapping;
+};
+
+
+struct tulip_private {
+ const char *product_name;
+ struct net_device *next_module;
+ struct tulip_rx_desc *rx_ring;
+ struct tulip_tx_desc *tx_ring;
+ dma_addr_t rx_ring_dma;
+ dma_addr_t tx_ring_dma;
+ /* The saved address of a sent-in-place packet/buffer, for skfree(). */
+ struct ring_info tx_buffers[TX_RING_SIZE];
+ /* The addresses of receive-in-place skbuffs. */
+ struct ring_info rx_buffers[RX_RING_SIZE];
+ u16 setup_frame[96]; /* Pseudo-Tx frame to init address table. */
+ int chip_id;
+ int revision;
+ int flags;
+ struct net_device_stats stats;
+ struct timer_list timer; /* Media selection timer. */
+ struct timer_list oom_timer; /* Out of memory timer. */
+ u32 mc_filter[2];
+ spinlock_t lock;
+ spinlock_t mii_lock;
+ unsigned int cur_rx, cur_tx; /* The next free ring entry */
+ unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */
+
+#ifdef CONFIG_TULIP_NAPI_HW_MITIGATION
+ int mit_on;
+#endif
+ unsigned int full_duplex:1; /* Full-duplex operation requested. */
+ unsigned int full_duplex_lock:1;
+ unsigned int fake_addr:1; /* Multiport board faked address. */
+ unsigned int default_port:4; /* Last dev->if_port value. */
+ unsigned int media2:4; /* Secondary monitored media port. */
+ unsigned int medialock:1; /* Don't sense media type. */
+ unsigned int mediasense:1; /* Media sensing in progress. */
+ unsigned int nway:1, nwayset:1; /* 21143 internal NWay. */
+ unsigned int csr0; /* CSR0 setting. */
+ unsigned int csr6; /* Current CSR6 control settings. */
+ unsigned char eeprom[EEPROM_SIZE]; /* Serial EEPROM contents. */
+ void (*link_change) (struct net_device * dev, int csr5);
+ u16 sym_advertise, mii_advertise; /* NWay capabilities advertised. */
+ u16 lpar; /* 21143 Link partner ability. */
+ u16 advertising[4];
+ signed char phys[4], mii_cnt; /* MII device addresses. */
+ struct mediatable *mtable;
+ int cur_index; /* Current media index. */
+ int saved_if_port;
+ struct pci_dev *pdev;
+ int ttimer;
+ int susp_rx;
+ unsigned long nir;
+ void __iomem *base_addr;
+ int csr12_shadow;
+ int pad0; /* Used for 8-byte alignment */
+};
+
+
+struct eeprom_fixup {
+ char *name;
+ unsigned char addr0;
+ unsigned char addr1;
+ unsigned char addr2;
+ u16 newtable[32]; /* Max length below. */
+};
+
+
+/* 21142.c */
+extern u16 t21142_csr14[];
+void t21142_timer(unsigned long data);
+void t21142_start_nway(struct net_device *dev);
+void t21142_lnk_change(struct net_device *dev, int csr5);
+
+
+/* PNIC2.c */
+void pnic2_lnk_change(struct net_device *dev, int csr5);
+void pnic2_timer(unsigned long data);
+void pnic2_start_nway(struct net_device *dev);
+void pnic2_lnk_change(struct net_device *dev, int csr5);
+
+/* eeprom.c */
+void tulip_parse_eeprom(struct net_device *dev);
+int tulip_read_eeprom(struct net_device *dev, int location, int addr_len);
+
+/* interrupt.c */
+extern unsigned int tulip_max_interrupt_work;
+extern int tulip_rx_copybreak;
+irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
+int tulip_refill_rx(struct net_device *dev);
+#ifdef CONFIG_TULIP_NAPI
+int tulip_poll(struct net_device *dev, int *budget);
+#endif
+
+
+/* media.c */
+int tulip_mdio_read(struct net_device *dev, int phy_id, int location);
+void tulip_mdio_write(struct net_device *dev, int phy_id, int location, int value);
+void tulip_select_media(struct net_device *dev, int startup);
+int tulip_check_duplex(struct net_device *dev);
+void tulip_find_mii (struct net_device *dev, int board_idx);
+
+/* pnic.c */
+void pnic_do_nway(struct net_device *dev);
+void pnic_lnk_change(struct net_device *dev, int csr5);
+void pnic_timer(unsigned long data);
+
+/* timer.c */
+void tulip_timer(unsigned long data);
+void mxic_timer(unsigned long data);
+void comet_timer(unsigned long data);
+
+/* tulip_core.c */
+extern int tulip_debug;
+extern const char * const medianame[];
+extern const char tulip_media_cap[];
+extern struct tulip_chip_table tulip_tbl[];
+void oom_timer(unsigned long data);
+extern u8 t21040_csr13[];
+
+static inline void tulip_start_rxtx(struct tulip_private *tp)
+{
+ void __iomem *ioaddr = tp->base_addr;
+ iowrite32(tp->csr6 | RxTx, ioaddr + CSR6);
+ barrier();
+ (void) ioread32(ioaddr + CSR6); /* mmio sync */
+}
+
+static inline void tulip_stop_rxtx(struct tulip_private *tp)
+{
+ void __iomem *ioaddr = tp->base_addr;
+ u32 csr6 = ioread32(ioaddr + CSR6);
+
+ if (csr6 & RxTx) {
+ unsigned i=1300/10;
+ iowrite32(csr6 & ~RxTx, ioaddr + CSR6);
+ barrier();
+ /* wait until in-flight frame completes.
+ * Max time @ 10BT: 1500*8b/10Mbps == 1200us (+ 100us margin)
+ * Typically expect this loop to end in < 50 us on 100BT.
+ */
+ while (--i && (ioread32(ioaddr + CSR5) & (CSR5_TS|CSR5_RS)))
+ udelay(10);
+
+ if (!i)
+ printk(KERN_DEBUG "%s: tulip_stop_rxtx() failed\n",
+ pci_name(tp->pdev));
+ }
+}
+
+static inline void tulip_restart_rxtx(struct tulip_private *tp)
+{
+ if(!(tp->chip_id == ULI526X &&
+ (tp->revision == 0x40 || tp->revision == 0x50))) {
+ tulip_stop_rxtx(tp);
+ udelay(5);
+ }
+ tulip_start_rxtx(tp);
+}
+
+#endif /* __NET_TULIP_H__ */
diff --git a/drivers/net/tulip/tulip_core.c b/drivers/net/tulip/tulip_core.c
new file mode 100644
index 000000000000..d098b3ba3538
--- /dev/null
+++ b/drivers/net/tulip/tulip_core.c
@@ -0,0 +1,1861 @@
+/* tulip_core.c: A DEC 21x4x-family ethernet driver for Linux. */
+
+/*
+ Maintained by Jeff Garzik <jgarzik@pobox.com>
+ Copyright 2000,2001 The Linux Kernel Team
+ Written/copyright 1994-2001 by Donald Becker.
+
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
+ for more information on this driver, or visit the project
+ Web page at http://sourceforge.net/projects/tulip/
+
+*/
+
+#include <linux/config.h>
+
+#define DRV_NAME "tulip"
+#ifdef CONFIG_TULIP_NAPI
+#define DRV_VERSION "1.1.13-NAPI" /* Keep at least for test */
+#else
+#define DRV_VERSION "1.1.13"
+#endif
+#define DRV_RELDATE "May 11, 2002"
+
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include "tulip.h"
+#include <linux/init.h>
+#include <linux/etherdevice.h>
+#include <linux/delay.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/crc32.h>
+#include <asm/unaligned.h>
+#include <asm/uaccess.h>
+
+#ifdef __sparc__
+#include <asm/pbm.h>
+#endif
+
+static char version[] __devinitdata =
+ "Linux Tulip driver version " DRV_VERSION " (" DRV_RELDATE ")\n";
+
+
+/* A few user-configurable values. */
+
+/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
+static unsigned int max_interrupt_work = 25;
+
+#define MAX_UNITS 8
+/* Used to pass the full-duplex flag, etc. */
+static int full_duplex[MAX_UNITS];
+static int options[MAX_UNITS];
+static int mtu[MAX_UNITS]; /* Jumbo MTU for interfaces. */
+
+/* The possible media types that can be set in options[] are: */
+const char * const medianame[32] = {
+ "10baseT", "10base2", "AUI", "100baseTx",
+ "10baseT-FDX", "100baseTx-FDX", "100baseT4", "100baseFx",
+ "100baseFx-FDX", "MII 10baseT", "MII 10baseT-FDX", "MII",
+ "10baseT(forced)", "MII 100baseTx", "MII 100baseTx-FDX", "MII 100baseT4",
+ "MII 100baseFx-HDX", "MII 100baseFx-FDX", "Home-PNA 1Mbps", "Invalid-19",
+ "","","","", "","","","", "","","","Transceiver reset",
+};
+
+/* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */
+#if defined(__alpha__) || defined(__arm__) || defined(__hppa__) \
+ || defined(__sparc_) || defined(__ia64__) \
+ || defined(__sh__) || defined(__mips__)
+static int rx_copybreak = 1518;
+#else
+static int rx_copybreak = 100;
+#endif
+
+/*
+ Set the bus performance register.
+ Typical: Set 16 longword cache alignment, no burst limit.
+ Cache alignment bits 15:14 Burst length 13:8
+ 0000 No alignment 0x00000000 unlimited 0800 8 longwords
+ 4000 8 longwords 0100 1 longword 1000 16 longwords
+ 8000 16 longwords 0200 2 longwords 2000 32 longwords
+ C000 32 longwords 0400 4 longwords
+ Warning: many older 486 systems are broken and require setting 0x00A04800
+ 8 longword cache alignment, 8 longword burst.
+ ToDo: Non-Intel setting could be better.
+*/
+
+#if defined(__alpha__) || defined(__ia64__)
+static int csr0 = 0x01A00000 | 0xE000;
+#elif defined(__i386__) || defined(__powerpc__) || defined(__x86_64__)
+static int csr0 = 0x01A00000 | 0x8000;
+#elif defined(__sparc__) || defined(__hppa__)
+/* The UltraSparc PCI controllers will disconnect at every 64-byte
+ * crossing anyways so it makes no sense to tell Tulip to burst
+ * any more than that.
+ */
+static int csr0 = 0x01A00000 | 0x9000;
+#elif defined(__arm__) || defined(__sh__)
+static int csr0 = 0x01A00000 | 0x4800;
+#elif defined(__mips__)
+static int csr0 = 0x00200000 | 0x4000;
+#else
+#warning Processor architecture undefined!
+static int csr0 = 0x00A00000 | 0x4800;
+#endif
+
+/* Operational parameters that usually are not changed. */
+/* Time in jiffies before concluding the transmitter is hung. */
+#define TX_TIMEOUT (4*HZ)
+
+
+MODULE_AUTHOR("The Linux Kernel Team");
+MODULE_DESCRIPTION("Digital 21*4* Tulip ethernet driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+module_param(tulip_debug, int, 0);
+module_param(max_interrupt_work, int, 0);
+module_param(rx_copybreak, int, 0);
+module_param(csr0, int, 0);
+module_param_array(options, int, NULL, 0);
+module_param_array(full_duplex, int, NULL, 0);
+
+#define PFX DRV_NAME ": "
+
+#ifdef TULIP_DEBUG
+int tulip_debug = TULIP_DEBUG;
+#else
+int tulip_debug = 1;
+#endif
+
+
+
+/*
+ * This table use during operation for capabilities and media timer.
+ *
+ * It is indexed via the values in 'enum chips'
+ */
+
+struct tulip_chip_table tulip_tbl[] = {
+ { }, /* placeholder for array, slot unused currently */
+ { }, /* placeholder for array, slot unused currently */
+
+ /* DC21140 */
+ { "Digital DS21140 Tulip", 128, 0x0001ebef,
+ HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | HAS_PCI_MWI, tulip_timer },
+
+ /* DC21142, DC21143 */
+ { "Digital DS21143 Tulip", 128, 0x0801fbff,
+ HAS_MII | HAS_MEDIA_TABLE | ALWAYS_CHECK_MII | HAS_ACPI | HAS_NWAY
+ | HAS_INTR_MITIGATION | HAS_PCI_MWI, t21142_timer },
+
+ /* LC82C168 */
+ { "Lite-On 82c168 PNIC", 256, 0x0001fbef,
+ HAS_MII | HAS_PNICNWAY, pnic_timer },
+
+ /* MX98713 */
+ { "Macronix 98713 PMAC", 128, 0x0001ebef,
+ HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM, mxic_timer },
+
+ /* MX98715 */
+ { "Macronix 98715 PMAC", 256, 0x0001ebef,
+ HAS_MEDIA_TABLE, mxic_timer },
+
+ /* MX98725 */
+ { "Macronix 98725 PMAC", 256, 0x0001ebef,
+ HAS_MEDIA_TABLE, mxic_timer },
+
+ /* AX88140 */
+ { "ASIX AX88140", 128, 0x0001fbff,
+ HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | MC_HASH_ONLY
+ | IS_ASIX, tulip_timer },
+
+ /* PNIC2 */
+ { "Lite-On PNIC-II", 256, 0x0801fbff,
+ HAS_MII | HAS_NWAY | HAS_8023X | HAS_PCI_MWI, pnic2_timer },
+
+ /* COMET */
+ { "ADMtek Comet", 256, 0x0001abef,
+ HAS_MII | MC_HASH_ONLY | COMET_MAC_ADDR, comet_timer },
+
+ /* COMPEX9881 */
+ { "Compex 9881 PMAC", 128, 0x0001ebef,
+ HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM, mxic_timer },
+
+ /* I21145 */
+ { "Intel DS21145 Tulip", 128, 0x0801fbff,
+ HAS_MII | HAS_MEDIA_TABLE | ALWAYS_CHECK_MII | HAS_ACPI
+ | HAS_NWAY | HAS_PCI_MWI, t21142_timer },
+
+ /* DM910X */
+ { "Davicom DM9102/DM9102A", 128, 0x0001ebef,
+ HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | HAS_ACPI,
+ tulip_timer },
+
+ /* RS7112 */
+ { "Conexant LANfinity", 256, 0x0001ebef,
+ HAS_MII | HAS_ACPI, tulip_timer },
+
+ /* ULi526X */
+ { "ULi M5261/M5263", 128, 0x0001ebef,
+ HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | HAS_ACPI, tulip_timer },
+};
+
+
+static struct pci_device_id tulip_pci_tbl[] = {
+ { 0x1011, 0x0009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DC21140 },
+ { 0x1011, 0x0019, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DC21143 },
+ { 0x11AD, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, LC82C168 },
+ { 0x10d9, 0x0512, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MX98713 },
+ { 0x10d9, 0x0531, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MX98715 },
+/* { 0x10d9, 0x0531, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MX98725 },*/
+ { 0x125B, 0x1400, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AX88140 },
+ { 0x11AD, 0xc115, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PNIC2 },
+ { 0x1317, 0x0981, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x1317, 0x0985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x1317, 0x1985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x1317, 0x9511, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x13D1, 0xAB02, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x13D1, 0xAB03, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x13D1, 0xAB08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x104A, 0x0981, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x104A, 0x2774, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x1259, 0xa120, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x11F6, 0x9881, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMPEX9881 },
+ { 0x8086, 0x0039, PCI_ANY_ID, PCI_ANY_ID, 0, 0, I21145 },
+ { 0x1282, 0x9100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DM910X },
+ { 0x1282, 0x9102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DM910X },
+ { 0x1113, 0x1216, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x1113, 0x1217, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MX98715 },
+ { 0x1113, 0x9511, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x1186, 0x1541, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x1186, 0x1561, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x1186, 0x1591, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x14f1, 0x1803, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CONEXANT },
+ { 0x1626, 0x8410, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x1737, 0xAB09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x1737, 0xAB08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x17B3, 0xAB08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+ { 0x10b9, 0x5261, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ULI526X }, /* ALi 1563 integrated ethernet */
+ { 0x10b9, 0x5263, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ULI526X }, /* ALi 1563 integrated ethernet */
+ { 0x10b7, 0x9300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, /* 3Com 3CSOHO100B-TX */
+ { } /* terminate list */
+};
+MODULE_DEVICE_TABLE(pci, tulip_pci_tbl);
+
+
+/* A full-duplex map for media types. */
+const char tulip_media_cap[32] =
+{0,0,0,16, 3,19,16,24, 27,4,7,5, 0,20,23,20, 28,31,0,0, };
+
+static void tulip_tx_timeout(struct net_device *dev);
+static void tulip_init_ring(struct net_device *dev);
+static int tulip_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static int tulip_open(struct net_device *dev);
+static int tulip_close(struct net_device *dev);
+static void tulip_up(struct net_device *dev);
+static void tulip_down(struct net_device *dev);
+static struct net_device_stats *tulip_get_stats(struct net_device *dev);
+static int private_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
+static void set_rx_mode(struct net_device *dev);
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void poll_tulip(struct net_device *dev);
+#endif
+
+static void tulip_set_power_state (struct tulip_private *tp,
+ int sleep, int snooze)
+{
+ if (tp->flags & HAS_ACPI) {
+ u32 tmp, newtmp;
+ pci_read_config_dword (tp->pdev, CFDD, &tmp);
+ newtmp = tmp & ~(CFDD_Sleep | CFDD_Snooze);
+ if (sleep)
+ newtmp |= CFDD_Sleep;
+ else if (snooze)
+ newtmp |= CFDD_Snooze;
+ if (tmp != newtmp)
+ pci_write_config_dword (tp->pdev, CFDD, newtmp);
+ }
+
+}
+
+
+static void tulip_up(struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ int next_tick = 3*HZ;
+ int i;
+
+ /* Wake the chip from sleep/snooze mode. */
+ tulip_set_power_state (tp, 0, 0);
+
+ /* On some chip revs we must set the MII/SYM port before the reset!? */
+ if (tp->mii_cnt || (tp->mtable && tp->mtable->has_mii))
+ iowrite32(0x00040000, ioaddr + CSR6);
+
+ /* Reset the chip, holding bit 0 set at least 50 PCI cycles. */
+ iowrite32(0x00000001, ioaddr + CSR0);
+ udelay(100);
+
+ /* Deassert reset.
+ Wait the specified 50 PCI cycles after a reset by initializing
+ Tx and Rx queues and the address filter list. */
+ iowrite32(tp->csr0, ioaddr + CSR0);
+ udelay(100);
+
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: tulip_up(), irq==%d.\n", dev->name, dev->irq);
+
+ iowrite32(tp->rx_ring_dma, ioaddr + CSR3);
+ iowrite32(tp->tx_ring_dma, ioaddr + CSR4);
+ tp->cur_rx = tp->cur_tx = 0;
+ tp->dirty_rx = tp->dirty_tx = 0;
+
+ if (tp->flags & MC_HASH_ONLY) {
+ u32 addr_low = le32_to_cpu(get_unaligned((u32 *)dev->dev_addr));
+ u32 addr_high = le16_to_cpu(get_unaligned((u16 *)(dev->dev_addr+4)));
+ if (tp->chip_id == AX88140) {
+ iowrite32(0, ioaddr + CSR13);
+ iowrite32(addr_low, ioaddr + CSR14);
+ iowrite32(1, ioaddr + CSR13);
+ iowrite32(addr_high, ioaddr + CSR14);
+ } else if (tp->flags & COMET_MAC_ADDR) {
+ iowrite32(addr_low, ioaddr + 0xA4);
+ iowrite32(addr_high, ioaddr + 0xA8);
+ iowrite32(0, ioaddr + 0xAC);
+ iowrite32(0, ioaddr + 0xB0);
+ }
+ } else {
+ /* This is set_rx_mode(), but without starting the transmitter. */
+ u16 *eaddrs = (u16 *)dev->dev_addr;
+ u16 *setup_frm = &tp->setup_frame[15*6];
+ dma_addr_t mapping;
+
+ /* 21140 bug: you must add the broadcast address. */
+ memset(tp->setup_frame, 0xff, sizeof(tp->setup_frame));
+ /* Fill the final entry of the table with our physical address. */
+ *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0];
+ *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1];
+ *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2];
+
+ mapping = pci_map_single(tp->pdev, tp->setup_frame,
+ sizeof(tp->setup_frame),
+ PCI_DMA_TODEVICE);
+ tp->tx_buffers[tp->cur_tx].skb = NULL;
+ tp->tx_buffers[tp->cur_tx].mapping = mapping;
+
+ /* Put the setup frame on the Tx list. */
+ tp->tx_ring[tp->cur_tx].length = cpu_to_le32(0x08000000 | 192);
+ tp->tx_ring[tp->cur_tx].buffer1 = cpu_to_le32(mapping);
+ tp->tx_ring[tp->cur_tx].status = cpu_to_le32(DescOwned);
+
+ tp->cur_tx++;
+ }
+
+ tp->saved_if_port = dev->if_port;
+ if (dev->if_port == 0)
+ dev->if_port = tp->default_port;
+
+ /* Allow selecting a default media. */
+ i = 0;
+ if (tp->mtable == NULL)
+ goto media_picked;
+ if (dev->if_port) {
+ int looking_for = tulip_media_cap[dev->if_port] & MediaIsMII ? 11 :
+ (dev->if_port == 12 ? 0 : dev->if_port);
+ for (i = 0; i < tp->mtable->leafcount; i++)
+ if (tp->mtable->mleaf[i].media == looking_for) {
+ printk(KERN_INFO "%s: Using user-specified media %s.\n",
+ dev->name, medianame[dev->if_port]);
+ goto media_picked;
+ }
+ }
+ if ((tp->mtable->defaultmedia & 0x0800) == 0) {
+ int looking_for = tp->mtable->defaultmedia & MEDIA_MASK;
+ for (i = 0; i < tp->mtable->leafcount; i++)
+ if (tp->mtable->mleaf[i].media == looking_for) {
+ printk(KERN_INFO "%s: Using EEPROM-set media %s.\n",
+ dev->name, medianame[looking_for]);
+ goto media_picked;
+ }
+ }
+ /* Start sensing first non-full-duplex media. */
+ for (i = tp->mtable->leafcount - 1;
+ (tulip_media_cap[tp->mtable->mleaf[i].media] & MediaAlwaysFD) && i > 0; i--)
+ ;
+media_picked:
+
+ tp->csr6 = 0;
+ tp->cur_index = i;
+ tp->nwayset = 0;
+
+ if (dev->if_port) {
+ if (tp->chip_id == DC21143 &&
+ (tulip_media_cap[dev->if_port] & MediaIsMII)) {
+ /* We must reset the media CSRs when we force-select MII mode. */
+ iowrite32(0x0000, ioaddr + CSR13);
+ iowrite32(0x0000, ioaddr + CSR14);
+ iowrite32(0x0008, ioaddr + CSR15);
+ }
+ tulip_select_media(dev, 1);
+ } else if (tp->chip_id == DC21142) {
+ if (tp->mii_cnt) {
+ tulip_select_media(dev, 1);
+ if (tulip_debug > 1)
+ printk(KERN_INFO "%s: Using MII transceiver %d, status "
+ "%4.4x.\n",
+ dev->name, tp->phys[0], tulip_mdio_read(dev, tp->phys[0], 1));
+ iowrite32(csr6_mask_defstate, ioaddr + CSR6);
+ tp->csr6 = csr6_mask_hdcap;
+ dev->if_port = 11;
+ iowrite32(0x0000, ioaddr + CSR13);
+ iowrite32(0x0000, ioaddr + CSR14);
+ } else
+ t21142_start_nway(dev);
+ } else if (tp->chip_id == PNIC2) {
+ /* for initial startup advertise 10/100 Full and Half */
+ tp->sym_advertise = 0x01E0;
+ /* enable autonegotiate end interrupt */
+ iowrite32(ioread32(ioaddr+CSR5)| 0x00008010, ioaddr + CSR5);
+ iowrite32(ioread32(ioaddr+CSR7)| 0x00008010, ioaddr + CSR7);
+ pnic2_start_nway(dev);
+ } else if (tp->chip_id == LC82C168 && ! tp->medialock) {
+ if (tp->mii_cnt) {
+ dev->if_port = 11;
+ tp->csr6 = 0x814C0000 | (tp->full_duplex ? 0x0200 : 0);
+ iowrite32(0x0001, ioaddr + CSR15);
+ } else if (ioread32(ioaddr + CSR5) & TPLnkPass)
+ pnic_do_nway(dev);
+ else {
+ /* Start with 10mbps to do autonegotiation. */
+ iowrite32(0x32, ioaddr + CSR12);
+ tp->csr6 = 0x00420000;
+ iowrite32(0x0001B078, ioaddr + 0xB8);
+ iowrite32(0x0201B078, ioaddr + 0xB8);
+ next_tick = 1*HZ;
+ }
+ } else if ((tp->chip_id == MX98713 || tp->chip_id == COMPEX9881)
+ && ! tp->medialock) {
+ dev->if_port = 0;
+ tp->csr6 = 0x01880000 | (tp->full_duplex ? 0x0200 : 0);
+ iowrite32(0x0f370000 | ioread16(ioaddr + 0x80), ioaddr + 0x80);
+ } else if (tp->chip_id == MX98715 || tp->chip_id == MX98725) {
+ /* Provided by BOLO, Macronix - 12/10/1998. */
+ dev->if_port = 0;
+ tp->csr6 = 0x01a80200;
+ iowrite32(0x0f370000 | ioread16(ioaddr + 0x80), ioaddr + 0x80);
+ iowrite32(0x11000 | ioread16(ioaddr + 0xa0), ioaddr + 0xa0);
+ } else if (tp->chip_id == COMET || tp->chip_id == CONEXANT) {
+ /* Enable automatic Tx underrun recovery. */
+ iowrite32(ioread32(ioaddr + 0x88) | 1, ioaddr + 0x88);
+ dev->if_port = tp->mii_cnt ? 11 : 0;
+ tp->csr6 = 0x00040000;
+ } else if (tp->chip_id == AX88140) {
+ tp->csr6 = tp->mii_cnt ? 0x00040100 : 0x00000100;
+ } else
+ tulip_select_media(dev, 1);
+
+ /* Start the chip's Tx to process setup frame. */
+ tulip_stop_rxtx(tp);
+ barrier();
+ udelay(5);
+ iowrite32(tp->csr6 | TxOn, ioaddr + CSR6);
+
+ /* Enable interrupts by setting the interrupt mask. */
+ iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR5);
+ iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7);
+ tulip_start_rxtx(tp);
+ iowrite32(0, ioaddr + CSR2); /* Rx poll demand */
+
+ if (tulip_debug > 2) {
+ printk(KERN_DEBUG "%s: Done tulip_up(), CSR0 %8.8x, CSR5 %8.8x CSR6 %8.8x.\n",
+ dev->name, ioread32(ioaddr + CSR0), ioread32(ioaddr + CSR5),
+ ioread32(ioaddr + CSR6));
+ }
+
+ /* Set the timer to switch to check for link beat and perhaps switch
+ to an alternate media type. */
+ tp->timer.expires = RUN_AT(next_tick);
+ add_timer(&tp->timer);
+#ifdef CONFIG_TULIP_NAPI
+ init_timer(&tp->oom_timer);
+ tp->oom_timer.data = (unsigned long)dev;
+ tp->oom_timer.function = oom_timer;
+#endif
+}
+
+static int
+tulip_open(struct net_device *dev)
+{
+ int retval;
+
+ if ((retval = request_irq(dev->irq, &tulip_interrupt, SA_SHIRQ, dev->name, dev)))
+ return retval;
+
+ tulip_init_ring (dev);
+
+ tulip_up (dev);
+
+ netif_start_queue (dev);
+
+ return 0;
+}
+
+
+static void tulip_tx_timeout(struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ unsigned long flags;
+
+ spin_lock_irqsave (&tp->lock, flags);
+
+ if (tulip_media_cap[dev->if_port] & MediaIsMII) {
+ /* Do nothing -- the media monitor should handle this. */
+ if (tulip_debug > 1)
+ printk(KERN_WARNING "%s: Transmit timeout using MII device.\n",
+ dev->name);
+ } else if (tp->chip_id == DC21140 || tp->chip_id == DC21142
+ || tp->chip_id == MX98713 || tp->chip_id == COMPEX9881
+ || tp->chip_id == DM910X || tp->chip_id == ULI526X) {
+ printk(KERN_WARNING "%s: 21140 transmit timed out, status %8.8x, "
+ "SIA %8.8x %8.8x %8.8x %8.8x, resetting...\n",
+ dev->name, ioread32(ioaddr + CSR5), ioread32(ioaddr + CSR12),
+ ioread32(ioaddr + CSR13), ioread32(ioaddr + CSR14), ioread32(ioaddr + CSR15));
+ if ( ! tp->medialock && tp->mtable) {
+ do
+ --tp->cur_index;
+ while (tp->cur_index >= 0
+ && (tulip_media_cap[tp->mtable->mleaf[tp->cur_index].media]
+ & MediaIsFD));
+ if (--tp->cur_index < 0) {
+ /* We start again, but should instead look for default. */
+ tp->cur_index = tp->mtable->leafcount - 1;
+ }
+ tulip_select_media(dev, 0);
+ printk(KERN_WARNING "%s: transmit timed out, switching to %s "
+ "media.\n", dev->name, medianame[dev->if_port]);
+ }
+ } else if (tp->chip_id == PNIC2) {
+ printk(KERN_WARNING "%s: PNIC2 transmit timed out, status %8.8x, "
+ "CSR6/7 %8.8x / %8.8x CSR12 %8.8x, resetting...\n",
+ dev->name, (int)ioread32(ioaddr + CSR5), (int)ioread32(ioaddr + CSR6),
+ (int)ioread32(ioaddr + CSR7), (int)ioread32(ioaddr + CSR12));
+ } else {
+ printk(KERN_WARNING "%s: Transmit timed out, status %8.8x, CSR12 "
+ "%8.8x, resetting...\n",
+ dev->name, ioread32(ioaddr + CSR5), ioread32(ioaddr + CSR12));
+ dev->if_port = 0;
+ }
+
+#if defined(way_too_many_messages)
+ if (tulip_debug > 3) {
+ int i;
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ u8 *buf = (u8 *)(tp->rx_ring[i].buffer1);
+ int j;
+ printk(KERN_DEBUG "%2d: %8.8x %8.8x %8.8x %8.8x "
+ "%2.2x %2.2x %2.2x.\n",
+ i, (unsigned int)tp->rx_ring[i].status,
+ (unsigned int)tp->rx_ring[i].length,
+ (unsigned int)tp->rx_ring[i].buffer1,
+ (unsigned int)tp->rx_ring[i].buffer2,
+ buf[0], buf[1], buf[2]);
+ for (j = 0; buf[j] != 0xee && j < 1600; j++)
+ if (j < 100) printk(" %2.2x", buf[j]);
+ printk(" j=%d.\n", j);
+ }
+ printk(KERN_DEBUG " Rx ring %8.8x: ", (int)tp->rx_ring);
+ for (i = 0; i < RX_RING_SIZE; i++)
+ printk(" %8.8x", (unsigned int)tp->rx_ring[i].status);
+ printk("\n" KERN_DEBUG " Tx ring %8.8x: ", (int)tp->tx_ring);
+ for (i = 0; i < TX_RING_SIZE; i++)
+ printk(" %8.8x", (unsigned int)tp->tx_ring[i].status);
+ printk("\n");
+ }
+#endif
+
+ /* Stop and restart the chip's Tx processes . */
+
+ tulip_restart_rxtx(tp);
+ /* Trigger an immediate transmit demand. */
+ iowrite32(0, ioaddr + CSR1);
+
+ tp->stats.tx_errors++;
+
+ spin_unlock_irqrestore (&tp->lock, flags);
+ dev->trans_start = jiffies;
+ netif_wake_queue (dev);
+}
+
+
+/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
+static void tulip_init_ring(struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ int i;
+
+ tp->susp_rx = 0;
+ tp->ttimer = 0;
+ tp->nir = 0;
+
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ tp->rx_ring[i].status = 0x00000000;
+ tp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ);
+ tp->rx_ring[i].buffer2 = cpu_to_le32(tp->rx_ring_dma + sizeof(struct tulip_rx_desc) * (i + 1));
+ tp->rx_buffers[i].skb = NULL;
+ tp->rx_buffers[i].mapping = 0;
+ }
+ /* Mark the last entry as wrapping the ring. */
+ tp->rx_ring[i-1].length = cpu_to_le32(PKT_BUF_SZ | DESC_RING_WRAP);
+ tp->rx_ring[i-1].buffer2 = cpu_to_le32(tp->rx_ring_dma);
+
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ dma_addr_t mapping;
+
+ /* Note the receive buffer must be longword aligned.
+ dev_alloc_skb() provides 16 byte alignment. But do *not*
+ use skb_reserve() to align the IP header! */
+ struct sk_buff *skb = dev_alloc_skb(PKT_BUF_SZ);
+ tp->rx_buffers[i].skb = skb;
+ if (skb == NULL)
+ break;
+ mapping = pci_map_single(tp->pdev, skb->tail,
+ PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
+ tp->rx_buffers[i].mapping = mapping;
+ skb->dev = dev; /* Mark as being used by this device. */
+ tp->rx_ring[i].status = cpu_to_le32(DescOwned); /* Owned by Tulip chip */
+ tp->rx_ring[i].buffer1 = cpu_to_le32(mapping);
+ }
+ tp->dirty_rx = (unsigned int)(i - RX_RING_SIZE);
+
+ /* The Tx buffer descriptor is filled in as needed, but we
+ do need to clear the ownership bit. */
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ tp->tx_buffers[i].skb = NULL;
+ tp->tx_buffers[i].mapping = 0;
+ tp->tx_ring[i].status = 0x00000000;
+ tp->tx_ring[i].buffer2 = cpu_to_le32(tp->tx_ring_dma + sizeof(struct tulip_tx_desc) * (i + 1));
+ }
+ tp->tx_ring[i-1].buffer2 = cpu_to_le32(tp->tx_ring_dma);
+}
+
+static int
+tulip_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ int entry;
+ u32 flag;
+ dma_addr_t mapping;
+
+ spin_lock_irq(&tp->lock);
+
+ /* Calculate the next Tx descriptor entry. */
+ entry = tp->cur_tx % TX_RING_SIZE;
+
+ tp->tx_buffers[entry].skb = skb;
+ mapping = pci_map_single(tp->pdev, skb->data,
+ skb->len, PCI_DMA_TODEVICE);
+ tp->tx_buffers[entry].mapping = mapping;
+ tp->tx_ring[entry].buffer1 = cpu_to_le32(mapping);
+
+ if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE/2) {/* Typical path */
+ flag = 0x60000000; /* No interrupt */
+ } else if (tp->cur_tx - tp->dirty_tx == TX_RING_SIZE/2) {
+ flag = 0xe0000000; /* Tx-done intr. */
+ } else if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE - 2) {
+ flag = 0x60000000; /* No Tx-done intr. */
+ } else { /* Leave room for set_rx_mode() to fill entries. */
+ flag = 0xe0000000; /* Tx-done intr. */
+ netif_stop_queue(dev);
+ }
+ if (entry == TX_RING_SIZE-1)
+ flag = 0xe0000000 | DESC_RING_WRAP;
+
+ tp->tx_ring[entry].length = cpu_to_le32(skb->len | flag);
+ /* if we were using Transmit Automatic Polling, we would need a
+ * wmb() here. */
+ tp->tx_ring[entry].status = cpu_to_le32(DescOwned);
+ wmb();
+
+ tp->cur_tx++;
+
+ /* Trigger an immediate transmit demand. */
+ iowrite32(0, tp->base_addr + CSR1);
+
+ spin_unlock_irq(&tp->lock);
+
+ dev->trans_start = jiffies;
+
+ return 0;
+}
+
+static void tulip_clean_tx_ring(struct tulip_private *tp)
+{
+ unsigned int dirty_tx;
+
+ for (dirty_tx = tp->dirty_tx ; tp->cur_tx - dirty_tx > 0;
+ dirty_tx++) {
+ int entry = dirty_tx % TX_RING_SIZE;
+ int status = le32_to_cpu(tp->tx_ring[entry].status);
+
+ if (status < 0) {
+ tp->stats.tx_errors++; /* It wasn't Txed */
+ tp->tx_ring[entry].status = 0;
+ }
+
+ /* Check for Tx filter setup frames. */
+ if (tp->tx_buffers[entry].skb == NULL) {
+ /* test because dummy frames not mapped */
+ if (tp->tx_buffers[entry].mapping)
+ pci_unmap_single(tp->pdev,
+ tp->tx_buffers[entry].mapping,
+ sizeof(tp->setup_frame),
+ PCI_DMA_TODEVICE);
+ continue;
+ }
+
+ pci_unmap_single(tp->pdev, tp->tx_buffers[entry].mapping,
+ tp->tx_buffers[entry].skb->len,
+ PCI_DMA_TODEVICE);
+
+ /* Free the original skb. */
+ dev_kfree_skb_irq(tp->tx_buffers[entry].skb);
+ tp->tx_buffers[entry].skb = NULL;
+ tp->tx_buffers[entry].mapping = 0;
+ }
+}
+
+static void tulip_down (struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ unsigned long flags;
+
+ del_timer_sync (&tp->timer);
+#ifdef CONFIG_TULIP_NAPI
+ del_timer_sync (&tp->oom_timer);
+#endif
+ spin_lock_irqsave (&tp->lock, flags);
+
+ /* Disable interrupts by clearing the interrupt mask. */
+ iowrite32 (0x00000000, ioaddr + CSR7);
+
+ /* Stop the Tx and Rx processes. */
+ tulip_stop_rxtx(tp);
+
+ /* prepare receive buffers */
+ tulip_refill_rx(dev);
+
+ /* release any unconsumed transmit buffers */
+ tulip_clean_tx_ring(tp);
+
+ if (ioread32 (ioaddr + CSR6) != 0xffffffff)
+ tp->stats.rx_missed_errors += ioread32 (ioaddr + CSR8) & 0xffff;
+
+ spin_unlock_irqrestore (&tp->lock, flags);
+
+ init_timer(&tp->timer);
+ tp->timer.data = (unsigned long)dev;
+ tp->timer.function = tulip_tbl[tp->chip_id].media_timer;
+
+ dev->if_port = tp->saved_if_port;
+
+ /* Leave the driver in snooze, not sleep, mode. */
+ tulip_set_power_state (tp, 0, 1);
+}
+
+
+static int tulip_close (struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ int i;
+
+ netif_stop_queue (dev);
+
+ tulip_down (dev);
+
+ if (tulip_debug > 1)
+ printk (KERN_DEBUG "%s: Shutting down ethercard, status was %2.2x.\n",
+ dev->name, ioread32 (ioaddr + CSR5));
+
+ free_irq (dev->irq, dev);
+
+ /* Free all the skbuffs in the Rx queue. */
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ struct sk_buff *skb = tp->rx_buffers[i].skb;
+ dma_addr_t mapping = tp->rx_buffers[i].mapping;
+
+ tp->rx_buffers[i].skb = NULL;
+ tp->rx_buffers[i].mapping = 0;
+
+ tp->rx_ring[i].status = 0; /* Not owned by Tulip chip. */
+ tp->rx_ring[i].length = 0;
+ tp->rx_ring[i].buffer1 = 0xBADF00D0; /* An invalid address. */
+ if (skb) {
+ pci_unmap_single(tp->pdev, mapping, PKT_BUF_SZ,
+ PCI_DMA_FROMDEVICE);
+ dev_kfree_skb (skb);
+ }
+ }
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ struct sk_buff *skb = tp->tx_buffers[i].skb;
+
+ if (skb != NULL) {
+ pci_unmap_single(tp->pdev, tp->tx_buffers[i].mapping,
+ skb->len, PCI_DMA_TODEVICE);
+ dev_kfree_skb (skb);
+ }
+ tp->tx_buffers[i].skb = NULL;
+ tp->tx_buffers[i].mapping = 0;
+ }
+
+ return 0;
+}
+
+static struct net_device_stats *tulip_get_stats(struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+
+ if (netif_running(dev)) {
+ unsigned long flags;
+
+ spin_lock_irqsave (&tp->lock, flags);
+
+ tp->stats.rx_missed_errors += ioread32(ioaddr + CSR8) & 0xffff;
+
+ spin_unlock_irqrestore(&tp->lock, flags);
+ }
+
+ return &tp->stats;
+}
+
+
+static void tulip_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
+{
+ struct tulip_private *np = netdev_priv(dev);
+ strcpy(info->driver, DRV_NAME);
+ strcpy(info->version, DRV_VERSION);
+ strcpy(info->bus_info, pci_name(np->pdev));
+}
+
+static struct ethtool_ops ops = {
+ .get_drvinfo = tulip_get_drvinfo
+};
+
+/* Provide ioctl() calls to examine the MII xcvr state. */
+static int private_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ struct mii_ioctl_data *data = if_mii(rq);
+ const unsigned int phy_idx = 0;
+ int phy = tp->phys[phy_idx] & 0x1f;
+ unsigned int regnum = data->reg_num;
+
+ switch (cmd) {
+ case SIOCGMIIPHY: /* Get address of MII PHY in use. */
+ if (tp->mii_cnt)
+ data->phy_id = phy;
+ else if (tp->flags & HAS_NWAY)
+ data->phy_id = 32;
+ else if (tp->chip_id == COMET)
+ data->phy_id = 1;
+ else
+ return -ENODEV;
+
+ case SIOCGMIIREG: /* Read MII PHY register. */
+ if (data->phy_id == 32 && (tp->flags & HAS_NWAY)) {
+ int csr12 = ioread32 (ioaddr + CSR12);
+ int csr14 = ioread32 (ioaddr + CSR14);
+ switch (regnum) {
+ case 0:
+ if (((csr14<<5) & 0x1000) ||
+ (dev->if_port == 5 && tp->nwayset))
+ data->val_out = 0x1000;
+ else
+ data->val_out = (tulip_media_cap[dev->if_port]&MediaIs100 ? 0x2000 : 0)
+ | (tulip_media_cap[dev->if_port]&MediaIsFD ? 0x0100 : 0);
+ break;
+ case 1:
+ data->val_out =
+ 0x1848 +
+ ((csr12&0x7000) == 0x5000 ? 0x20 : 0) +
+ ((csr12&0x06) == 6 ? 0 : 4);
+ data->val_out |= 0x6048;
+ break;
+ case 4:
+ /* Advertised value, bogus 10baseTx-FD value from CSR6. */
+ data->val_out =
+ ((ioread32(ioaddr + CSR6) >> 3) & 0x0040) +
+ ((csr14 >> 1) & 0x20) + 1;
+ data->val_out |= ((csr14 >> 9) & 0x03C0);
+ break;
+ case 5: data->val_out = tp->lpar; break;
+ default: data->val_out = 0; break;
+ }
+ } else {
+ data->val_out = tulip_mdio_read (dev, data->phy_id & 0x1f, regnum);
+ }
+ return 0;
+
+ case SIOCSMIIREG: /* Write MII PHY register. */
+ if (!capable (CAP_NET_ADMIN))
+ return -EPERM;
+ if (regnum & ~0x1f)
+ return -EINVAL;
+ if (data->phy_id == phy) {
+ u16 value = data->val_in;
+ switch (regnum) {
+ case 0: /* Check for autonegotiation on or reset. */
+ tp->full_duplex_lock = (value & 0x9000) ? 0 : 1;
+ if (tp->full_duplex_lock)
+ tp->full_duplex = (value & 0x0100) ? 1 : 0;
+ break;
+ case 4:
+ tp->advertising[phy_idx] =
+ tp->mii_advertise = data->val_in;
+ break;
+ }
+ }
+ if (data->phy_id == 32 && (tp->flags & HAS_NWAY)) {
+ u16 value = data->val_in;
+ if (regnum == 0) {
+ if ((value & 0x1200) == 0x1200) {
+ if (tp->chip_id == PNIC2) {
+ pnic2_start_nway (dev);
+ } else {
+ t21142_start_nway (dev);
+ }
+ }
+ } else if (regnum == 4)
+ tp->sym_advertise = value;
+ } else {
+ tulip_mdio_write (dev, data->phy_id & 0x1f, regnum, data->val_in);
+ }
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return -EOPNOTSUPP;
+}
+
+
+/* Set or clear the multicast filter for this adaptor.
+ Note that we only use exclusion around actually queueing the
+ new frame, not around filling tp->setup_frame. This is non-deterministic
+ when re-entered but still correct. */
+
+#undef set_bit_le
+#define set_bit_le(i,p) do { ((char *)(p))[(i)/8] |= (1<<((i)%8)); } while(0)
+
+static void build_setup_frame_hash(u16 *setup_frm, struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ u16 hash_table[32];
+ struct dev_mc_list *mclist;
+ int i;
+ u16 *eaddrs;
+
+ memset(hash_table, 0, sizeof(hash_table));
+ set_bit_le(255, hash_table); /* Broadcast entry */
+ /* This should work on big-endian machines as well. */
+ for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
+ i++, mclist = mclist->next) {
+ int index = ether_crc_le(ETH_ALEN, mclist->dmi_addr) & 0x1ff;
+
+ set_bit_le(index, hash_table);
+
+ }
+ for (i = 0; i < 32; i++) {
+ *setup_frm++ = hash_table[i];
+ *setup_frm++ = hash_table[i];
+ }
+ setup_frm = &tp->setup_frame[13*6];
+
+ /* Fill the final entry with our physical address. */
+ eaddrs = (u16 *)dev->dev_addr;
+ *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0];
+ *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1];
+ *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2];
+}
+
+static void build_setup_frame_perfect(u16 *setup_frm, struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ struct dev_mc_list *mclist;
+ int i;
+ u16 *eaddrs;
+
+ /* We have <= 14 addresses so we can use the wonderful
+ 16 address perfect filtering of the Tulip. */
+ for (i = 0, mclist = dev->mc_list; i < dev->mc_count;
+ i++, mclist = mclist->next) {
+ eaddrs = (u16 *)mclist->dmi_addr;
+ *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++;
+ *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++;
+ *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++;
+ }
+ /* Fill the unused entries with the broadcast address. */
+ memset(setup_frm, 0xff, (15-i)*12);
+ setup_frm = &tp->setup_frame[15*6];
+
+ /* Fill the final entry with our physical address. */
+ eaddrs = (u16 *)dev->dev_addr;
+ *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0];
+ *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1];
+ *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2];
+}
+
+
+static void set_rx_mode(struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+ int csr6;
+
+ csr6 = ioread32(ioaddr + CSR6) & ~0x00D5;
+
+ tp->csr6 &= ~0x00D5;
+ if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
+ tp->csr6 |= AcceptAllMulticast | AcceptAllPhys;
+ csr6 |= AcceptAllMulticast | AcceptAllPhys;
+ /* Unconditionally log net taps. */
+ printk(KERN_INFO "%s: Promiscuous mode enabled.\n", dev->name);
+ } else if ((dev->mc_count > 1000) || (dev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter well -- accept all multicasts. */
+ tp->csr6 |= AcceptAllMulticast;
+ csr6 |= AcceptAllMulticast;
+ } else if (tp->flags & MC_HASH_ONLY) {
+ /* Some work-alikes have only a 64-entry hash filter table. */
+ /* Should verify correctness on big-endian/__powerpc__ */
+ struct dev_mc_list *mclist;
+ int i;
+ if (dev->mc_count > 64) { /* Arbitrary non-effective limit. */
+ tp->csr6 |= AcceptAllMulticast;
+ csr6 |= AcceptAllMulticast;
+ } else {
+ u32 mc_filter[2] = {0, 0}; /* Multicast hash filter */
+ int filterbit;
+ for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
+ i++, mclist = mclist->next) {
+ if (tp->flags & COMET_MAC_ADDR)
+ filterbit = ether_crc_le(ETH_ALEN, mclist->dmi_addr);
+ else
+ filterbit = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
+ filterbit &= 0x3f;
+ mc_filter[filterbit >> 5] |= 1 << (filterbit & 31);
+ if (tulip_debug > 2) {
+ printk(KERN_INFO "%s: Added filter for %2.2x:%2.2x:%2.2x:"
+ "%2.2x:%2.2x:%2.2x %8.8x bit %d.\n", dev->name,
+ mclist->dmi_addr[0], mclist->dmi_addr[1],
+ mclist->dmi_addr[2], mclist->dmi_addr[3],
+ mclist->dmi_addr[4], mclist->dmi_addr[5],
+ ether_crc(ETH_ALEN, mclist->dmi_addr), filterbit);
+ }
+ }
+ if (mc_filter[0] == tp->mc_filter[0] &&
+ mc_filter[1] == tp->mc_filter[1])
+ ; /* No change. */
+ else if (tp->flags & IS_ASIX) {
+ iowrite32(2, ioaddr + CSR13);
+ iowrite32(mc_filter[0], ioaddr + CSR14);
+ iowrite32(3, ioaddr + CSR13);
+ iowrite32(mc_filter[1], ioaddr + CSR14);
+ } else if (tp->flags & COMET_MAC_ADDR) {
+ iowrite32(mc_filter[0], ioaddr + 0xAC);
+ iowrite32(mc_filter[1], ioaddr + 0xB0);
+ }
+ tp->mc_filter[0] = mc_filter[0];
+ tp->mc_filter[1] = mc_filter[1];
+ }
+ } else {
+ unsigned long flags;
+ u32 tx_flags = 0x08000000 | 192;
+
+ /* Note that only the low-address shortword of setup_frame is valid!
+ The values are doubled for big-endian architectures. */
+ if (dev->mc_count > 14) { /* Must use a multicast hash table. */
+ build_setup_frame_hash(tp->setup_frame, dev);
+ tx_flags = 0x08400000 | 192;
+ } else {
+ build_setup_frame_perfect(tp->setup_frame, dev);
+ }
+
+ spin_lock_irqsave(&tp->lock, flags);
+
+ if (tp->cur_tx - tp->dirty_tx > TX_RING_SIZE - 2) {
+ /* Same setup recently queued, we need not add it. */
+ } else {
+ unsigned int entry;
+ int dummy = -1;
+
+ /* Now add this frame to the Tx list. */
+
+ entry = tp->cur_tx++ % TX_RING_SIZE;
+
+ if (entry != 0) {
+ /* Avoid a chip errata by prefixing a dummy entry. Don't do
+ this on the ULI526X as it triggers a different problem */
+ if (!(tp->chip_id == ULI526X && (tp->revision = 0x40 || tp->revision == 0x50))) {
+ tp->tx_buffers[entry].skb = NULL;
+ tp->tx_buffers[entry].mapping = 0;
+ tp->tx_ring[entry].length =
+ (entry == TX_RING_SIZE-1) ? cpu_to_le32(DESC_RING_WRAP) : 0;
+ tp->tx_ring[entry].buffer1 = 0;
+ /* Must set DescOwned later to avoid race with chip */
+ dummy = entry;
+ entry = tp->cur_tx++ % TX_RING_SIZE;
+ }
+ }
+
+ tp->tx_buffers[entry].skb = NULL;
+ tp->tx_buffers[entry].mapping =
+ pci_map_single(tp->pdev, tp->setup_frame,
+ sizeof(tp->setup_frame),
+ PCI_DMA_TODEVICE);
+ /* Put the setup frame on the Tx list. */
+ if (entry == TX_RING_SIZE-1)
+ tx_flags |= DESC_RING_WRAP; /* Wrap ring. */
+ tp->tx_ring[entry].length = cpu_to_le32(tx_flags);
+ tp->tx_ring[entry].buffer1 =
+ cpu_to_le32(tp->tx_buffers[entry].mapping);
+ tp->tx_ring[entry].status = cpu_to_le32(DescOwned);
+ if (dummy >= 0)
+ tp->tx_ring[dummy].status = cpu_to_le32(DescOwned);
+ if (tp->cur_tx - tp->dirty_tx >= TX_RING_SIZE - 2)
+ netif_stop_queue(dev);
+
+ /* Trigger an immediate transmit demand. */
+ iowrite32(0, ioaddr + CSR1);
+ }
+
+ spin_unlock_irqrestore(&tp->lock, flags);
+ }
+
+ iowrite32(csr6, ioaddr + CSR6);
+}
+
+#ifdef CONFIG_TULIP_MWI
+static void __devinit tulip_mwi_config (struct pci_dev *pdev,
+ struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ u8 cache;
+ u16 pci_command;
+ u32 csr0;
+
+ if (tulip_debug > 3)
+ printk(KERN_DEBUG "%s: tulip_mwi_config()\n", pci_name(pdev));
+
+ tp->csr0 = csr0 = 0;
+
+ /* if we have any cache line size at all, we can do MRM */
+ csr0 |= MRM;
+
+ /* ...and barring hardware bugs, MWI */
+ if (!(tp->chip_id == DC21143 && tp->revision == 65))
+ csr0 |= MWI;
+
+ /* set or disable MWI in the standard PCI command bit.
+ * Check for the case where mwi is desired but not available
+ */
+ if (csr0 & MWI) pci_set_mwi(pdev);
+ else pci_clear_mwi(pdev);
+
+ /* read result from hardware (in case bit refused to enable) */
+ pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
+ if ((csr0 & MWI) && (!(pci_command & PCI_COMMAND_INVALIDATE)))
+ csr0 &= ~MWI;
+
+ /* if cache line size hardwired to zero, no MWI */
+ pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &cache);
+ if ((csr0 & MWI) && (cache == 0)) {
+ csr0 &= ~MWI;
+ pci_clear_mwi(pdev);
+ }
+
+ /* assign per-cacheline-size cache alignment and
+ * burst length values
+ */
+ switch (cache) {
+ case 8:
+ csr0 |= MRL | (1 << CALShift) | (16 << BurstLenShift);
+ break;
+ case 16:
+ csr0 |= MRL | (2 << CALShift) | (16 << BurstLenShift);
+ break;
+ case 32:
+ csr0 |= MRL | (3 << CALShift) | (32 << BurstLenShift);
+ break;
+ default:
+ cache = 0;
+ break;
+ }
+
+ /* if we have a good cache line size, we by now have a good
+ * csr0, so save it and exit
+ */
+ if (cache)
+ goto out;
+
+ /* we don't have a good csr0 or cache line size, disable MWI */
+ if (csr0 & MWI) {
+ pci_clear_mwi(pdev);
+ csr0 &= ~MWI;
+ }
+
+ /* sane defaults for burst length and cache alignment
+ * originally from de4x5 driver
+ */
+ csr0 |= (8 << BurstLenShift) | (1 << CALShift);
+
+out:
+ tp->csr0 = csr0;
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "%s: MWI config cacheline=%d, csr0=%08x\n",
+ pci_name(pdev), cache, csr0);
+}
+#endif
+
+/*
+ * Chips that have the MRM/reserved bit quirk and the burst quirk. That
+ * is the DM910X and the on chip ULi devices
+ */
+
+static int tulip_uli_dm_quirk(struct pci_dev *pdev)
+{
+ if (pdev->vendor == 0x1282 && pdev->device == 0x9102)
+ return 1;
+ if (pdev->vendor == 0x10b9 && pdev->device == 0x5261)
+ return 1;
+ if (pdev->vendor == 0x10b9 && pdev->device == 0x5263)
+ return 1;
+ return 0;
+}
+
+static int __devinit tulip_init_one (struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ struct tulip_private *tp;
+ /* See note below on the multiport cards. */
+ static unsigned char last_phys_addr[6] = {0x00, 'L', 'i', 'n', 'u', 'x'};
+ static struct pci_device_id early_486_chipsets[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82424) },
+ { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496) },
+ { },
+ };
+ static int last_irq;
+ static int multiport_cnt; /* For four-port boards w/one EEPROM */
+ u8 chip_rev;
+ int i, irq;
+ unsigned short sum;
+ unsigned char *ee_data;
+ struct net_device *dev;
+ void __iomem *ioaddr;
+ static int board_idx = -1;
+ int chip_idx = ent->driver_data;
+ const char *chip_name = tulip_tbl[chip_idx].chip_name;
+ unsigned int eeprom_missing = 0;
+ unsigned int force_csr0 = 0;
+
+#ifndef MODULE
+ static int did_version; /* Already printed version info. */
+ if (tulip_debug > 0 && did_version++ == 0)
+ printk (KERN_INFO "%s", version);
+#endif
+
+ board_idx++;
+
+ /*
+ * Lan media wire a tulip chip to a wan interface. Needs a very
+ * different driver (lmc driver)
+ */
+
+ if (pdev->subsystem_vendor == PCI_VENDOR_ID_LMC) {
+ printk (KERN_ERR PFX "skipping LMC card.\n");
+ return -ENODEV;
+ }
+
+ /*
+ * Early DM9100's need software CRC and the DMFE driver
+ */
+
+ if (pdev->vendor == 0x1282 && pdev->device == 0x9100)
+ {
+ u32 dev_rev;
+ /* Read Chip revision */
+ pci_read_config_dword(pdev, PCI_REVISION_ID, &dev_rev);
+ if(dev_rev < 0x02000030)
+ {
+ printk(KERN_ERR PFX "skipping early DM9100 with Crc bug (use dmfe)\n");
+ return -ENODEV;
+ }
+ }
+
+ /*
+ * Looks for early PCI chipsets where people report hangs
+ * without the workarounds being on.
+ */
+
+ /* 1. Intel Saturn. Switch to 8 long words burst, 8 long word cache
+ aligned. Aries might need this too. The Saturn errata are not
+ pretty reading but thankfully it's an old 486 chipset.
+
+ 2. The dreaded SiS496 486 chipset. Same workaround as Intel
+ Saturn.
+ */
+
+ if (pci_dev_present(early_486_chipsets)) {
+ csr0 = MRL | MRM | (8 << BurstLenShift) | (1 << CALShift);
+ force_csr0 = 1;
+ }
+
+ /* bugfix: the ASIX must have a burst limit or horrible things happen. */
+ if (chip_idx == AX88140) {
+ if ((csr0 & 0x3f00) == 0)
+ csr0 |= 0x2000;
+ }
+
+ /* PNIC doesn't have MWI/MRL/MRM... */
+ if (chip_idx == LC82C168)
+ csr0 &= ~0xfff10000; /* zero reserved bits 31:20, 16 */
+
+ /* DM9102A has troubles with MRM & clear reserved bits 24:22, 20, 16, 7:1 */
+ if (tulip_uli_dm_quirk(pdev)) {
+ csr0 &= ~0x01f100ff;
+#if defined(__sparc__)
+ csr0 = (csr0 & ~0xff00) | 0xe000;
+#endif
+ }
+ /*
+ * And back to business
+ */
+
+ i = pci_enable_device(pdev);
+ if (i) {
+ printk (KERN_ERR PFX
+ "Cannot enable tulip board #%d, aborting\n",
+ board_idx);
+ return i;
+ }
+
+ irq = pdev->irq;
+
+ /* alloc_etherdev ensures aligned and zeroed private structures */
+ dev = alloc_etherdev (sizeof (*tp));
+ if (!dev) {
+ printk (KERN_ERR PFX "ether device alloc failed, aborting\n");
+ return -ENOMEM;
+ }
+
+ SET_MODULE_OWNER(dev);
+ SET_NETDEV_DEV(dev, &pdev->dev);
+ if (pci_resource_len (pdev, 0) < tulip_tbl[chip_idx].io_size) {
+ printk (KERN_ERR PFX "%s: I/O region (0x%lx@0x%lx) too small, "
+ "aborting\n", pci_name(pdev),
+ pci_resource_len (pdev, 0),
+ pci_resource_start (pdev, 0));
+ goto err_out_free_netdev;
+ }
+
+ /* grab all resources from both PIO and MMIO regions, as we
+ * don't want anyone else messing around with our hardware */
+ if (pci_request_regions (pdev, "tulip"))
+ goto err_out_free_netdev;
+
+#ifndef USE_IO_OPS
+ ioaddr = pci_iomap(pdev, 1, tulip_tbl[chip_idx].io_size);
+#else
+ ioaddr = pci_iomap(pdev, 0, tulip_tbl[chip_idx].io_size);
+#endif
+ if (!ioaddr)
+ goto err_out_free_res;
+
+ pci_read_config_byte (pdev, PCI_REVISION_ID, &chip_rev);
+
+ /*
+ * initialize private data structure 'tp'
+ * it is zeroed and aligned in alloc_etherdev
+ */
+ tp = netdev_priv(dev);
+
+ tp->rx_ring = pci_alloc_consistent(pdev,
+ sizeof(struct tulip_rx_desc) * RX_RING_SIZE +
+ sizeof(struct tulip_tx_desc) * TX_RING_SIZE,
+ &tp->rx_ring_dma);
+ if (!tp->rx_ring)
+ goto err_out_mtable;
+ tp->tx_ring = (struct tulip_tx_desc *)(tp->rx_ring + RX_RING_SIZE);
+ tp->tx_ring_dma = tp->rx_ring_dma + sizeof(struct tulip_rx_desc) * RX_RING_SIZE;
+
+ tp->chip_id = chip_idx;
+ tp->flags = tulip_tbl[chip_idx].flags;
+ tp->pdev = pdev;
+ tp->base_addr = ioaddr;
+ tp->revision = chip_rev;
+ tp->csr0 = csr0;
+ spin_lock_init(&tp->lock);
+ spin_lock_init(&tp->mii_lock);
+ init_timer(&tp->timer);
+ tp->timer.data = (unsigned long)dev;
+ tp->timer.function = tulip_tbl[tp->chip_id].media_timer;
+
+ dev->base_addr = (unsigned long)ioaddr;
+
+#ifdef CONFIG_TULIP_MWI
+ if (!force_csr0 && (tp->flags & HAS_PCI_MWI))
+ tulip_mwi_config (pdev, dev);
+#else
+ /* MWI is broken for DC21143 rev 65... */
+ if (chip_idx == DC21143 && chip_rev == 65)
+ tp->csr0 &= ~MWI;
+#endif
+
+ /* Stop the chip's Tx and Rx processes. */
+ tulip_stop_rxtx(tp);
+
+ pci_set_master(pdev);
+
+#ifdef CONFIG_GSC
+ if (pdev->subsystem_vendor == PCI_VENDOR_ID_HP) {
+ switch (pdev->subsystem_device) {
+ default:
+ break;
+ case 0x1061:
+ case 0x1062:
+ case 0x1063:
+ case 0x1098:
+ case 0x1099:
+ case 0x10EE:
+ tp->flags |= HAS_SWAPPED_SEEPROM | NEEDS_FAKE_MEDIA_TABLE;
+ chip_name = "GSC DS21140 Tulip";
+ }
+ }
+#endif
+
+ /* Clear the missed-packet counter. */
+ ioread32(ioaddr + CSR8);
+
+ /* The station address ROM is read byte serially. The register must
+ be polled, waiting for the value to be read bit serially from the
+ EEPROM.
+ */
+ ee_data = tp->eeprom;
+ sum = 0;
+ if (chip_idx == LC82C168) {
+ for (i = 0; i < 3; i++) {
+ int value, boguscnt = 100000;
+ iowrite32(0x600 | i, ioaddr + 0x98);
+ do
+ value = ioread32(ioaddr + CSR9);
+ while (value < 0 && --boguscnt > 0);
+ put_unaligned(le16_to_cpu(value), ((u16*)dev->dev_addr) + i);
+ sum += value & 0xffff;
+ }
+ } else if (chip_idx == COMET) {
+ /* No need to read the EEPROM. */
+ put_unaligned(cpu_to_le32(ioread32(ioaddr + 0xA4)), (u32 *)dev->dev_addr);
+ put_unaligned(cpu_to_le16(ioread32(ioaddr + 0xA8)), (u16 *)(dev->dev_addr + 4));
+ for (i = 0; i < 6; i ++)
+ sum += dev->dev_addr[i];
+ } else {
+ /* A serial EEPROM interface, we read now and sort it out later. */
+ int sa_offset = 0;
+ int ee_addr_size = tulip_read_eeprom(dev, 0xff, 8) & 0x40000 ? 8 : 6;
+
+ for (i = 0; i < sizeof(tp->eeprom); i+=2) {
+ u16 data = tulip_read_eeprom(dev, i/2, ee_addr_size);
+ ee_data[i] = data & 0xff;
+ ee_data[i + 1] = data >> 8;
+ }
+
+ /* DEC now has a specification (see Notes) but early board makers
+ just put the address in the first EEPROM locations. */
+ /* This does memcmp(ee_data, ee_data+16, 8) */
+ for (i = 0; i < 8; i ++)
+ if (ee_data[i] != ee_data[16+i])
+ sa_offset = 20;
+ if (chip_idx == CONEXANT) {
+ /* Check that the tuple type and length is correct. */
+ if (ee_data[0x198] == 0x04 && ee_data[0x199] == 6)
+ sa_offset = 0x19A;
+ } else if (ee_data[0] == 0xff && ee_data[1] == 0xff &&
+ ee_data[2] == 0) {
+ sa_offset = 2; /* Grrr, damn Matrox boards. */
+ multiport_cnt = 4;
+ }
+#ifdef CONFIG_DDB5476
+ if ((pdev->bus->number == 0) && (PCI_SLOT(pdev->devfn) == 6)) {
+ /* DDB5476 MAC address in first EEPROM locations. */
+ sa_offset = 0;
+ /* No media table either */
+ tp->flags &= ~HAS_MEDIA_TABLE;
+ }
+#endif
+#ifdef CONFIG_DDB5477
+ if ((pdev->bus->number == 0) && (PCI_SLOT(pdev->devfn) == 4)) {
+ /* DDB5477 MAC address in first EEPROM locations. */
+ sa_offset = 0;
+ /* No media table either */
+ tp->flags &= ~HAS_MEDIA_TABLE;
+ }
+#endif
+#ifdef CONFIG_MIPS_COBALT
+ if ((pdev->bus->number == 0) &&
+ ((PCI_SLOT(pdev->devfn) == 7) ||
+ (PCI_SLOT(pdev->devfn) == 12))) {
+ /* Cobalt MAC address in first EEPROM locations. */
+ sa_offset = 0;
+ /* No media table either */
+ tp->flags &= ~HAS_MEDIA_TABLE;
+ }
+#endif
+#ifdef CONFIG_GSC
+ /* Check to see if we have a broken srom */
+ if (ee_data[0] == 0x61 && ee_data[1] == 0x10) {
+ /* pci_vendor_id and subsystem_id are swapped */
+ ee_data[0] = ee_data[2];
+ ee_data[1] = ee_data[3];
+ ee_data[2] = 0x61;
+ ee_data[3] = 0x10;
+
+ /* HSC-PCI boards need to be byte-swaped and shifted
+ * up 1 word. This shift needs to happen at the end
+ * of the MAC first because of the 2 byte overlap.
+ */
+ for (i = 4; i >= 0; i -= 2) {
+ ee_data[17 + i + 3] = ee_data[17 + i];
+ ee_data[16 + i + 5] = ee_data[16 + i];
+ }
+ }
+#endif
+
+ for (i = 0; i < 6; i ++) {
+ dev->dev_addr[i] = ee_data[i + sa_offset];
+ sum += ee_data[i + sa_offset];
+ }
+ }
+ /* Lite-On boards have the address byte-swapped. */
+ if ((dev->dev_addr[0] == 0xA0 || dev->dev_addr[0] == 0xC0 || dev->dev_addr[0] == 0x02)
+ && dev->dev_addr[1] == 0x00)
+ for (i = 0; i < 6; i+=2) {
+ char tmp = dev->dev_addr[i];
+ dev->dev_addr[i] = dev->dev_addr[i+1];
+ dev->dev_addr[i+1] = tmp;
+ }
+ /* On the Zynx 315 Etherarray and other multiport boards only the
+ first Tulip has an EEPROM.
+ On Sparc systems the mac address is held in the OBP property
+ "local-mac-address".
+ The addresses of the subsequent ports are derived from the first.
+ Many PCI BIOSes also incorrectly report the IRQ line, so we correct
+ that here as well. */
+ if (sum == 0 || sum == 6*0xff) {
+#if defined(__sparc__)
+ struct pcidev_cookie *pcp = pdev->sysdata;
+#endif
+ eeprom_missing = 1;
+ for (i = 0; i < 5; i++)
+ dev->dev_addr[i] = last_phys_addr[i];
+ dev->dev_addr[i] = last_phys_addr[i] + 1;
+#if defined(__sparc__)
+ if ((pcp != NULL) && prom_getproplen(pcp->prom_node,
+ "local-mac-address") == 6) {
+ prom_getproperty(pcp->prom_node, "local-mac-address",
+ dev->dev_addr, 6);
+ }
+#endif
+#if defined(__i386__) /* Patch up x86 BIOS bug. */
+ if (last_irq)
+ irq = last_irq;
+#endif
+ }
+
+ for (i = 0; i < 6; i++)
+ last_phys_addr[i] = dev->dev_addr[i];
+ last_irq = irq;
+ dev->irq = irq;
+
+ /* The lower four bits are the media type. */
+ if (board_idx >= 0 && board_idx < MAX_UNITS) {
+ if (options[board_idx] & MEDIA_MASK)
+ tp->default_port = options[board_idx] & MEDIA_MASK;
+ if ((options[board_idx] & FullDuplex) || full_duplex[board_idx] > 0)
+ tp->full_duplex = 1;
+ if (mtu[board_idx] > 0)
+ dev->mtu = mtu[board_idx];
+ }
+ if (dev->mem_start & MEDIA_MASK)
+ tp->default_port = dev->mem_start & MEDIA_MASK;
+ if (tp->default_port) {
+ printk(KERN_INFO "tulip%d: Transceiver selection forced to %s.\n",
+ board_idx, medianame[tp->default_port & MEDIA_MASK]);
+ tp->medialock = 1;
+ if (tulip_media_cap[tp->default_port] & MediaAlwaysFD)
+ tp->full_duplex = 1;
+ }
+ if (tp->full_duplex)
+ tp->full_duplex_lock = 1;
+
+ if (tulip_media_cap[tp->default_port] & MediaIsMII) {
+ u16 media2advert[] = { 0x20, 0x40, 0x03e0, 0x60, 0x80, 0x100, 0x200 };
+ tp->mii_advertise = media2advert[tp->default_port - 9];
+ tp->mii_advertise |= (tp->flags & HAS_8023X); /* Matching bits! */
+ }
+
+ if (tp->flags & HAS_MEDIA_TABLE) {
+ sprintf(dev->name, "tulip%d", board_idx); /* hack */
+ tulip_parse_eeprom(dev);
+ strcpy(dev->name, "eth%d"); /* un-hack */
+ }
+
+ if ((tp->flags & ALWAYS_CHECK_MII) ||
+ (tp->mtable && tp->mtable->has_mii) ||
+ ( ! tp->mtable && (tp->flags & HAS_MII))) {
+ if (tp->mtable && tp->mtable->has_mii) {
+ for (i = 0; i < tp->mtable->leafcount; i++)
+ if (tp->mtable->mleaf[i].media == 11) {
+ tp->cur_index = i;
+ tp->saved_if_port = dev->if_port;
+ tulip_select_media(dev, 2);
+ dev->if_port = tp->saved_if_port;
+ break;
+ }
+ }
+
+ /* Find the connected MII xcvrs.
+ Doing this in open() would allow detecting external xcvrs
+ later, but takes much time. */
+ tulip_find_mii (dev, board_idx);
+ }
+
+ /* The Tulip-specific entries in the device structure. */
+ dev->open = tulip_open;
+ dev->hard_start_xmit = tulip_start_xmit;
+ dev->tx_timeout = tulip_tx_timeout;
+ dev->watchdog_timeo = TX_TIMEOUT;
+#ifdef CONFIG_TULIP_NAPI
+ dev->poll = tulip_poll;
+ dev->weight = 16;
+#endif
+ dev->stop = tulip_close;
+ dev->get_stats = tulip_get_stats;
+ dev->do_ioctl = private_ioctl;
+ dev->set_multicast_list = set_rx_mode;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = &poll_tulip;
+#endif
+ SET_ETHTOOL_OPS(dev, &ops);
+
+ if (register_netdev(dev))
+ goto err_out_free_ring;
+
+ printk(KERN_INFO "%s: %s rev %d at %p,",
+ dev->name, chip_name, chip_rev, ioaddr);
+ pci_set_drvdata(pdev, dev);
+
+ if (eeprom_missing)
+ printk(" EEPROM not present,");
+ for (i = 0; i < 6; i++)
+ printk("%c%2.2X", i ? ':' : ' ', dev->dev_addr[i]);
+ printk(", IRQ %d.\n", irq);
+
+ if (tp->chip_id == PNIC2)
+ tp->link_change = pnic2_lnk_change;
+ else if (tp->flags & HAS_NWAY)
+ tp->link_change = t21142_lnk_change;
+ else if (tp->flags & HAS_PNICNWAY)
+ tp->link_change = pnic_lnk_change;
+
+ /* Reset the xcvr interface and turn on heartbeat. */
+ switch (chip_idx) {
+ case DC21140:
+ case DM910X:
+ case ULI526X:
+ default:
+ if (tp->mtable)
+ iowrite32(tp->mtable->csr12dir | 0x100, ioaddr + CSR12);
+ break;
+ case DC21142:
+ if (tp->mii_cnt || tulip_media_cap[dev->if_port] & MediaIsMII) {
+ iowrite32(csr6_mask_defstate, ioaddr + CSR6);
+ iowrite32(0x0000, ioaddr + CSR13);
+ iowrite32(0x0000, ioaddr + CSR14);
+ iowrite32(csr6_mask_hdcap, ioaddr + CSR6);
+ } else
+ t21142_start_nway(dev);
+ break;
+ case PNIC2:
+ /* just do a reset for sanity sake */
+ iowrite32(0x0000, ioaddr + CSR13);
+ iowrite32(0x0000, ioaddr + CSR14);
+ break;
+ case LC82C168:
+ if ( ! tp->mii_cnt) {
+ tp->nway = 1;
+ tp->nwayset = 0;
+ iowrite32(csr6_ttm | csr6_ca, ioaddr + CSR6);
+ iowrite32(0x30, ioaddr + CSR12);
+ iowrite32(0x0001F078, ioaddr + CSR6);
+ iowrite32(0x0201F078, ioaddr + CSR6); /* Turn on autonegotiation. */
+ }
+ break;
+ case MX98713:
+ case COMPEX9881:
+ iowrite32(0x00000000, ioaddr + CSR6);
+ iowrite32(0x000711C0, ioaddr + CSR14); /* Turn on NWay. */
+ iowrite32(0x00000001, ioaddr + CSR13);
+ break;
+ case MX98715:
+ case MX98725:
+ iowrite32(0x01a80000, ioaddr + CSR6);
+ iowrite32(0xFFFFFFFF, ioaddr + CSR14);
+ iowrite32(0x00001000, ioaddr + CSR12);
+ break;
+ case COMET:
+ /* No initialization necessary. */
+ break;
+ }
+
+ /* put the chip in snooze mode until opened */
+ tulip_set_power_state (tp, 0, 1);
+
+ return 0;
+
+err_out_free_ring:
+ pci_free_consistent (pdev,
+ sizeof (struct tulip_rx_desc) * RX_RING_SIZE +
+ sizeof (struct tulip_tx_desc) * TX_RING_SIZE,
+ tp->rx_ring, tp->rx_ring_dma);
+
+err_out_mtable:
+ if (tp->mtable)
+ kfree (tp->mtable);
+ pci_iounmap(pdev, ioaddr);
+
+err_out_free_res:
+ pci_release_regions (pdev);
+
+err_out_free_netdev:
+ free_netdev (dev);
+ return -ENODEV;
+}
+
+
+#ifdef CONFIG_PM
+
+static int tulip_suspend (struct pci_dev *pdev, pm_message_t state)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+
+ if (dev && netif_running (dev) && netif_device_present (dev)) {
+ netif_device_detach (dev);
+ tulip_down (dev);
+ /* pci_power_off(pdev, -1); */
+ }
+ return 0;
+}
+
+
+static int tulip_resume(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+
+ if (dev && netif_running (dev) && !netif_device_present (dev)) {
+#if 1
+ pci_enable_device (pdev);
+#endif
+ /* pci_power_on(pdev); */
+ tulip_up (dev);
+ netif_device_attach (dev);
+ }
+ return 0;
+}
+
+#endif /* CONFIG_PM */
+
+
+static void __devexit tulip_remove_one (struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata (pdev);
+ struct tulip_private *tp;
+
+ if (!dev)
+ return;
+
+ tp = netdev_priv(dev);
+ unregister_netdev(dev);
+ pci_free_consistent (pdev,
+ sizeof (struct tulip_rx_desc) * RX_RING_SIZE +
+ sizeof (struct tulip_tx_desc) * TX_RING_SIZE,
+ tp->rx_ring, tp->rx_ring_dma);
+ if (tp->mtable)
+ kfree (tp->mtable);
+ pci_iounmap(pdev, tp->base_addr);
+ free_netdev (dev);
+ pci_release_regions (pdev);
+ pci_set_drvdata (pdev, NULL);
+
+ /* pci_power_off (pdev, -1); */
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling 'interrupt' - used by things like netconsole to send skbs
+ * without having to re-enable interrupts. It's not called while
+ * the interrupt routine is executing.
+ */
+
+static void poll_tulip (struct net_device *dev)
+{
+ /* disable_irq here is not very nice, but with the lockless
+ interrupt handler we have no other choice. */
+ disable_irq(dev->irq);
+ tulip_interrupt (dev->irq, dev, NULL);
+ enable_irq(dev->irq);
+}
+#endif
+
+static struct pci_driver tulip_driver = {
+ .name = DRV_NAME,
+ .id_table = tulip_pci_tbl,
+ .probe = tulip_init_one,
+ .remove = __devexit_p(tulip_remove_one),
+#ifdef CONFIG_PM
+ .suspend = tulip_suspend,
+ .resume = tulip_resume,
+#endif /* CONFIG_PM */
+};
+
+
+static int __init tulip_init (void)
+{
+#ifdef MODULE
+ printk (KERN_INFO "%s", version);
+#endif
+
+ /* copy module parms into globals */
+ tulip_rx_copybreak = rx_copybreak;
+ tulip_max_interrupt_work = max_interrupt_work;
+
+ /* probe for and init boards */
+ return pci_module_init (&tulip_driver);
+}
+
+
+static void __exit tulip_cleanup (void)
+{
+ pci_unregister_driver (&tulip_driver);
+}
+
+
+module_init(tulip_init);
+module_exit(tulip_cleanup);
diff --git a/drivers/net/tulip/winbond-840.c b/drivers/net/tulip/winbond-840.c
new file mode 100644
index 000000000000..f7e64ee11b1d
--- /dev/null
+++ b/drivers/net/tulip/winbond-840.c
@@ -0,0 +1,1716 @@
+/* winbond-840.c: A Linux PCI network adapter device driver. */
+/*
+ Written 1998-2001 by Donald Becker.
+
+ This software may be used and distributed according to the terms of
+ the GNU General Public License (GPL), incorporated herein by reference.
+ Drivers based on or derived from this code fall under the GPL and must
+ retain the authorship, copyright and license notice. This file is not
+ a complete program and may only be used when the entire operating
+ system is licensed under the GPL.
+
+ The author may be reached as becker@scyld.com, or C/O
+ Scyld Computing Corporation
+ 410 Severn Ave., Suite 210
+ Annapolis MD 21403
+
+ Support and updates available at
+ http://www.scyld.com/network/drivers.html
+
+ Do not remove the copyright information.
+ Do not change the version information unless an improvement has been made.
+ Merely removing my name, as Compex has done in the past, does not count
+ as an improvement.
+
+ Changelog:
+ * ported to 2.4
+ ???
+ * spin lock update, memory barriers, new style dma mappings
+ limit each tx buffer to < 1024 bytes
+ remove DescIntr from Rx descriptors (that's an Tx flag)
+ remove next pointer from Tx descriptors
+ synchronize tx_q_bytes
+ software reset in tx_timeout
+ Copyright (C) 2000 Manfred Spraul
+ * further cleanups
+ power management.
+ support for big endian descriptors
+ Copyright (C) 2001 Manfred Spraul
+ * ethtool support (jgarzik)
+ * Replace some MII-related magic numbers with constants (jgarzik)
+
+ TODO:
+ * enable pci_power_off
+ * Wake-On-LAN
+*/
+
+#define DRV_NAME "winbond-840"
+#define DRV_VERSION "1.01-d"
+#define DRV_RELDATE "Nov-17-2001"
+
+
+/* Automatically extracted configuration info:
+probe-func: winbond840_probe
+config-in: tristate 'Winbond W89c840 Ethernet support' CONFIG_WINBOND_840
+
+c-help-name: Winbond W89c840 PCI Ethernet support
+c-help-symbol: CONFIG_WINBOND_840
+c-help: This driver is for the Winbond W89c840 chip. It also works with
+c-help: the TX9882 chip on the Compex RL100-ATX board.
+c-help: More specific information and updates are available from
+c-help: http://www.scyld.com/network/drivers.html
+*/
+
+/* The user-configurable values.
+ These may be modified when a driver module is loaded.*/
+
+static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */
+static int max_interrupt_work = 20;
+/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
+ The '840 uses a 64 element hash table based on the Ethernet CRC. */
+static int multicast_filter_limit = 32;
+
+/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
+ Setting to > 1518 effectively disables this feature. */
+static int rx_copybreak;
+
+/* Used to pass the media type, etc.
+ Both 'options[]' and 'full_duplex[]' should exist for driver
+ interoperability.
+ The media type is usually passed in 'options[]'.
+*/
+#define MAX_UNITS 8 /* More are supported, limit only on options */
+static int options[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
+static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
+
+/* Operational parameters that are set at compile time. */
+
+/* Keep the ring sizes a power of two for compile efficiency.
+ The compiler will convert <unsigned>'%'<2^N> into a bit mask.
+ Making the Tx ring too large decreases the effectiveness of channel
+ bonding and packet priority.
+ There are no ill effects from too-large receive rings. */
+#define TX_RING_SIZE 16
+#define TX_QUEUE_LEN 10 /* Limit ring entries actually used. */
+#define TX_QUEUE_LEN_RESTART 5
+#define RX_RING_SIZE 32
+
+#define TX_BUFLIMIT (1024-128)
+
+/* The presumed FIFO size for working around the Tx-FIFO-overflow bug.
+ To avoid overflowing we don't queue again until we have room for a
+ full-size packet.
+ */
+#define TX_FIFO_SIZE (2048)
+#define TX_BUG_FIFO_LIMIT (TX_FIFO_SIZE-1514-16)
+
+
+/* Operational parameters that usually are not changed. */
+/* Time in jiffies before concluding the transmitter is hung. */
+#define TX_TIMEOUT (2*HZ)
+
+#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
+
+/* Include files, designed to support most kernel versions 2.0.0 and later. */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/rtnetlink.h>
+#include <linux/crc32.h>
+#include <linux/bitops.h>
+#include <asm/uaccess.h>
+#include <asm/processor.h> /* Processor type for cache alignment. */
+#include <asm/io.h>
+#include <asm/irq.h>
+
+/* These identify the driver base version and may not be removed. */
+static char version[] __devinitdata =
+KERN_INFO DRV_NAME ".c:v" DRV_VERSION " (2.4 port) " DRV_RELDATE " Donald Becker <becker@scyld.com>\n"
+KERN_INFO " http://www.scyld.com/network/drivers.html\n";
+
+MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
+MODULE_DESCRIPTION("Winbond W89c840 Ethernet driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_param(max_interrupt_work, int, 0);
+module_param(debug, int, 0);
+module_param(rx_copybreak, int, 0);
+module_param(multicast_filter_limit, int, 0);
+module_param_array(options, int, NULL, 0);
+module_param_array(full_duplex, int, NULL, 0);
+MODULE_PARM_DESC(max_interrupt_work, "winbond-840 maximum events handled per interrupt");
+MODULE_PARM_DESC(debug, "winbond-840 debug level (0-6)");
+MODULE_PARM_DESC(rx_copybreak, "winbond-840 copy breakpoint for copy-only-tiny-frames");
+MODULE_PARM_DESC(multicast_filter_limit, "winbond-840 maximum number of filtered multicast addresses");
+MODULE_PARM_DESC(options, "winbond-840: Bits 0-3: media type, bit 17: full duplex");
+MODULE_PARM_DESC(full_duplex, "winbond-840 full duplex setting(s) (1)");
+
+/*
+ Theory of Operation
+
+I. Board Compatibility
+
+This driver is for the Winbond w89c840 chip.
+
+II. Board-specific settings
+
+None.
+
+III. Driver operation
+
+This chip is very similar to the Digital 21*4* "Tulip" family. The first
+twelve registers and the descriptor format are nearly identical. Read a
+Tulip manual for operational details.
+
+A significant difference is that the multicast filter and station address are
+stored in registers rather than loaded through a pseudo-transmit packet.
+
+Unlike the Tulip, transmit buffers are limited to 1KB. To transmit a
+full-sized packet we must use both data buffers in a descriptor. Thus the
+driver uses ring mode where descriptors are implicitly sequential in memory,
+rather than using the second descriptor address as a chain pointer to
+subsequent descriptors.
+
+IV. Notes
+
+If you are going to almost clone a Tulip, why not go all the way and avoid
+the need for a new driver?
+
+IVb. References
+
+http://www.scyld.com/expert/100mbps.html
+http://www.scyld.com/expert/NWay.html
+http://www.winbond.com.tw/
+
+IVc. Errata
+
+A horrible bug exists in the transmit FIFO. Apparently the chip doesn't
+correctly detect a full FIFO, and queuing more than 2048 bytes may result in
+silent data corruption.
+
+Test with 'ping -s 10000' on a fast computer.
+
+*/
+
+
+
+/*
+ PCI probe table.
+*/
+enum pci_id_flags_bits {
+ /* Set PCI command register bits before calling probe1(). */
+ PCI_USES_IO=1, PCI_USES_MEM=2, PCI_USES_MASTER=4,
+ /* Read and map the single following PCI BAR. */
+ PCI_ADDR0=0<<4, PCI_ADDR1=1<<4, PCI_ADDR2=2<<4, PCI_ADDR3=3<<4,
+ PCI_ADDR_64BITS=0x100, PCI_NO_ACPI_WAKE=0x200, PCI_NO_MIN_LATENCY=0x400,
+};
+enum chip_capability_flags {
+ CanHaveMII=1, HasBrokenTx=2, AlwaysFDX=4, FDXOnNoMII=8,};
+#ifdef USE_IO_OPS
+#define W840_FLAGS (PCI_USES_IO | PCI_ADDR0 | PCI_USES_MASTER)
+#else
+#define W840_FLAGS (PCI_USES_MEM | PCI_ADDR1 | PCI_USES_MASTER)
+#endif
+
+static struct pci_device_id w840_pci_tbl[] = {
+ { 0x1050, 0x0840, PCI_ANY_ID, 0x8153, 0, 0, 0 },
+ { 0x1050, 0x0840, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
+ { 0x11f6, 0x2011, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
+ { 0, }
+};
+MODULE_DEVICE_TABLE(pci, w840_pci_tbl);
+
+struct pci_id_info {
+ const char *name;
+ struct match_info {
+ int pci, pci_mask, subsystem, subsystem_mask;
+ int revision, revision_mask; /* Only 8 bits. */
+ } id;
+ enum pci_id_flags_bits pci_flags;
+ int io_size; /* Needed for I/O region check or ioremap(). */
+ int drv_flags; /* Driver use, intended as capability flags. */
+};
+static struct pci_id_info pci_id_tbl[] = {
+ {"Winbond W89c840", /* Sometime a Level-One switch card. */
+ { 0x08401050, 0xffffffff, 0x81530000, 0xffff0000 },
+ W840_FLAGS, 128, CanHaveMII | HasBrokenTx | FDXOnNoMII},
+ {"Winbond W89c840", { 0x08401050, 0xffffffff, },
+ W840_FLAGS, 128, CanHaveMII | HasBrokenTx},
+ {"Compex RL100-ATX", { 0x201111F6, 0xffffffff,},
+ W840_FLAGS, 128, CanHaveMII | HasBrokenTx},
+ {NULL,}, /* 0 terminated list. */
+};
+
+/* This driver was written to use PCI memory space, however some x86 systems
+ work only with I/O space accesses. Pass -DUSE_IO_OPS to use PCI I/O space
+ accesses instead of memory space. */
+
+/* Offsets to the Command and Status Registers, "CSRs".
+ While similar to the Tulip, these registers are longword aligned.
+ Note: It's not useful to define symbolic names for every register bit in
+ the device. The name can only partially document the semantics and make
+ the driver longer and more difficult to read.
+*/
+enum w840_offsets {
+ PCIBusCfg=0x00, TxStartDemand=0x04, RxStartDemand=0x08,
+ RxRingPtr=0x0C, TxRingPtr=0x10,
+ IntrStatus=0x14, NetworkConfig=0x18, IntrEnable=0x1C,
+ RxMissed=0x20, EECtrl=0x24, MIICtrl=0x24, BootRom=0x28, GPTimer=0x2C,
+ CurRxDescAddr=0x30, CurRxBufAddr=0x34, /* Debug use */
+ MulticastFilter0=0x38, MulticastFilter1=0x3C, StationAddr=0x40,
+ CurTxDescAddr=0x4C, CurTxBufAddr=0x50,
+};
+
+/* Bits in the interrupt status/enable registers. */
+/* The bits in the Intr Status/Enable registers, mostly interrupt sources. */
+enum intr_status_bits {
+ NormalIntr=0x10000, AbnormalIntr=0x8000,
+ IntrPCIErr=0x2000, TimerInt=0x800,
+ IntrRxDied=0x100, RxNoBuf=0x80, IntrRxDone=0x40,
+ TxFIFOUnderflow=0x20, RxErrIntr=0x10,
+ TxIdle=0x04, IntrTxStopped=0x02, IntrTxDone=0x01,
+};
+
+/* Bits in the NetworkConfig register. */
+enum rx_mode_bits {
+ AcceptErr=0x80, AcceptRunt=0x40,
+ AcceptBroadcast=0x20, AcceptMulticast=0x10,
+ AcceptAllPhys=0x08, AcceptMyPhys=0x02,
+};
+
+enum mii_reg_bits {
+ MDIO_ShiftClk=0x10000, MDIO_DataIn=0x80000, MDIO_DataOut=0x20000,
+ MDIO_EnbOutput=0x40000, MDIO_EnbIn = 0x00000,
+};
+
+/* The Tulip Rx and Tx buffer descriptors. */
+struct w840_rx_desc {
+ s32 status;
+ s32 length;
+ u32 buffer1;
+ u32 buffer2;
+};
+
+struct w840_tx_desc {
+ s32 status;
+ s32 length;
+ u32 buffer1, buffer2;
+};
+
+/* Bits in network_desc.status */
+enum desc_status_bits {
+ DescOwn=0x80000000, DescEndRing=0x02000000, DescUseLink=0x01000000,
+ DescWholePkt=0x60000000, DescStartPkt=0x20000000, DescEndPkt=0x40000000,
+ DescIntr=0x80000000,
+};
+
+#define MII_CNT 1 /* winbond only supports one MII */
+struct netdev_private {
+ struct w840_rx_desc *rx_ring;
+ dma_addr_t rx_addr[RX_RING_SIZE];
+ struct w840_tx_desc *tx_ring;
+ dma_addr_t tx_addr[TX_RING_SIZE];
+ dma_addr_t ring_dma_addr;
+ /* The addresses of receive-in-place skbuffs. */
+ struct sk_buff* rx_skbuff[RX_RING_SIZE];
+ /* The saved address of a sent-in-place packet/buffer, for later free(). */
+ struct sk_buff* tx_skbuff[TX_RING_SIZE];
+ struct net_device_stats stats;
+ struct timer_list timer; /* Media monitoring timer. */
+ /* Frequently used values: keep some adjacent for cache effect. */
+ spinlock_t lock;
+ int chip_id, drv_flags;
+ struct pci_dev *pci_dev;
+ int csr6;
+ struct w840_rx_desc *rx_head_desc;
+ unsigned int cur_rx, dirty_rx; /* Producer/consumer ring indices */
+ unsigned int rx_buf_sz; /* Based on MTU+slack. */
+ unsigned int cur_tx, dirty_tx;
+ unsigned int tx_q_bytes;
+ unsigned int tx_full; /* The Tx queue is full. */
+ /* MII transceiver section. */
+ int mii_cnt; /* MII device addresses. */
+ unsigned char phys[MII_CNT]; /* MII device addresses, but only the first is used */
+ u32 mii;
+ struct mii_if_info mii_if;
+ void __iomem *base_addr;
+};
+
+static int eeprom_read(void __iomem *ioaddr, int location);
+static int mdio_read(struct net_device *dev, int phy_id, int location);
+static void mdio_write(struct net_device *dev, int phy_id, int location, int value);
+static int netdev_open(struct net_device *dev);
+static int update_link(struct net_device *dev);
+static void netdev_timer(unsigned long data);
+static void init_rxtx_rings(struct net_device *dev);
+static void free_rxtx_rings(struct netdev_private *np);
+static void init_registers(struct net_device *dev);
+static void tx_timeout(struct net_device *dev);
+static int alloc_ringdesc(struct net_device *dev);
+static void free_ringdesc(struct netdev_private *np);
+static int start_tx(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *regs);
+static void netdev_error(struct net_device *dev, int intr_status);
+static int netdev_rx(struct net_device *dev);
+static u32 __set_rx_mode(struct net_device *dev);
+static void set_rx_mode(struct net_device *dev);
+static struct net_device_stats *get_stats(struct net_device *dev);
+static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
+static struct ethtool_ops netdev_ethtool_ops;
+static int netdev_close(struct net_device *dev);
+
+
+
+static int __devinit w840_probe1 (struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ struct net_device *dev;
+ struct netdev_private *np;
+ static int find_cnt;
+ int chip_idx = ent->driver_data;
+ int irq;
+ int i, option = find_cnt < MAX_UNITS ? options[find_cnt] : 0;
+ void __iomem *ioaddr;
+ int bar = 1;
+
+ i = pci_enable_device(pdev);
+ if (i) return i;
+
+ pci_set_master(pdev);
+
+ irq = pdev->irq;
+
+ if (pci_set_dma_mask(pdev,0xFFFFffff)) {
+ printk(KERN_WARNING "Winbond-840: Device %s disabled due to DMA limitations.\n",
+ pci_name(pdev));
+ return -EIO;
+ }
+ dev = alloc_etherdev(sizeof(*np));
+ if (!dev)
+ return -ENOMEM;
+ SET_MODULE_OWNER(dev);
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+ if (pci_request_regions(pdev, DRV_NAME))
+ goto err_out_netdev;
+#ifdef USE_IO_OPS
+ bar = 0;
+#endif
+ ioaddr = pci_iomap(pdev, bar, pci_id_tbl[chip_idx].io_size);
+ if (!ioaddr)
+ goto err_out_free_res;
+
+ for (i = 0; i < 3; i++)
+ ((u16 *)dev->dev_addr)[i] = le16_to_cpu(eeprom_read(ioaddr, i));
+
+ /* Reset the chip to erase previous misconfiguration.
+ No hold time required! */
+ iowrite32(0x00000001, ioaddr + PCIBusCfg);
+
+ dev->base_addr = (unsigned long)ioaddr;
+ dev->irq = irq;
+
+ np = netdev_priv(dev);
+ np->pci_dev = pdev;
+ np->chip_id = chip_idx;
+ np->drv_flags = pci_id_tbl[chip_idx].drv_flags;
+ spin_lock_init(&np->lock);
+ np->mii_if.dev = dev;
+ np->mii_if.mdio_read = mdio_read;
+ np->mii_if.mdio_write = mdio_write;
+ np->base_addr = ioaddr;
+
+ pci_set_drvdata(pdev, dev);
+
+ if (dev->mem_start)
+ option = dev->mem_start;
+
+ /* The lower four bits are the media type. */
+ if (option > 0) {
+ if (option & 0x200)
+ np->mii_if.full_duplex = 1;
+ if (option & 15)
+ printk(KERN_INFO "%s: ignoring user supplied media type %d",
+ dev->name, option & 15);
+ }
+ if (find_cnt < MAX_UNITS && full_duplex[find_cnt] > 0)
+ np->mii_if.full_duplex = 1;
+
+ if (np->mii_if.full_duplex)
+ np->mii_if.force_media = 1;
+
+ /* The chip-specific entries in the device structure. */
+ dev->open = &netdev_open;
+ dev->hard_start_xmit = &start_tx;
+ dev->stop = &netdev_close;
+ dev->get_stats = &get_stats;
+ dev->set_multicast_list = &set_rx_mode;
+ dev->do_ioctl = &netdev_ioctl;
+ dev->ethtool_ops = &netdev_ethtool_ops;
+ dev->tx_timeout = &tx_timeout;
+ dev->watchdog_timeo = TX_TIMEOUT;
+
+ i = register_netdev(dev);
+ if (i)
+ goto err_out_cleardev;
+
+ printk(KERN_INFO "%s: %s at %p, ",
+ dev->name, pci_id_tbl[chip_idx].name, ioaddr);
+ for (i = 0; i < 5; i++)
+ printk("%2.2x:", dev->dev_addr[i]);
+ printk("%2.2x, IRQ %d.\n", dev->dev_addr[i], irq);
+
+ if (np->drv_flags & CanHaveMII) {
+ int phy, phy_idx = 0;
+ for (phy = 1; phy < 32 && phy_idx < MII_CNT; phy++) {
+ int mii_status = mdio_read(dev, phy, MII_BMSR);
+ if (mii_status != 0xffff && mii_status != 0x0000) {
+ np->phys[phy_idx++] = phy;
+ np->mii_if.advertising = mdio_read(dev, phy, MII_ADVERTISE);
+ np->mii = (mdio_read(dev, phy, MII_PHYSID1) << 16)+
+ mdio_read(dev, phy, MII_PHYSID2);
+ printk(KERN_INFO "%s: MII PHY %8.8xh found at address %d, status "
+ "0x%4.4x advertising %4.4x.\n",
+ dev->name, np->mii, phy, mii_status, np->mii_if.advertising);
+ }
+ }
+ np->mii_cnt = phy_idx;
+ np->mii_if.phy_id = np->phys[0];
+ if (phy_idx == 0) {
+ printk(KERN_WARNING "%s: MII PHY not found -- this device may "
+ "not operate correctly.\n", dev->name);
+ }
+ }
+
+ find_cnt++;
+ return 0;
+
+err_out_cleardev:
+ pci_set_drvdata(pdev, NULL);
+ pci_iounmap(pdev, ioaddr);
+err_out_free_res:
+ pci_release_regions(pdev);
+err_out_netdev:
+ free_netdev (dev);
+ return -ENODEV;
+}
+
+
+/* Read the EEPROM and MII Management Data I/O (MDIO) interfaces. These are
+ often serial bit streams generated by the host processor.
+ The example below is for the common 93c46 EEPROM, 64 16 bit words. */
+
+/* Delay between EEPROM clock transitions.
+ No extra delay is needed with 33Mhz PCI, but future 66Mhz access may need
+ a delay. Note that pre-2.0.34 kernels had a cache-alignment bug that
+ made udelay() unreliable.
+ The old method of using an ISA access as a delay, __SLOW_DOWN_IO__, is
+ depricated.
+*/
+#define eeprom_delay(ee_addr) ioread32(ee_addr)
+
+enum EEPROM_Ctrl_Bits {
+ EE_ShiftClk=0x02, EE_Write0=0x801, EE_Write1=0x805,
+ EE_ChipSelect=0x801, EE_DataIn=0x08,
+};
+
+/* The EEPROM commands include the alway-set leading bit. */
+enum EEPROM_Cmds {
+ EE_WriteCmd=(5 << 6), EE_ReadCmd=(6 << 6), EE_EraseCmd=(7 << 6),
+};
+
+static int eeprom_read(void __iomem *addr, int location)
+{
+ int i;
+ int retval = 0;
+ void __iomem *ee_addr = addr + EECtrl;
+ int read_cmd = location | EE_ReadCmd;
+ iowrite32(EE_ChipSelect, ee_addr);
+
+ /* Shift the read command bits out. */
+ for (i = 10; i >= 0; i--) {
+ short dataval = (read_cmd & (1 << i)) ? EE_Write1 : EE_Write0;
+ iowrite32(dataval, ee_addr);
+ eeprom_delay(ee_addr);
+ iowrite32(dataval | EE_ShiftClk, ee_addr);
+ eeprom_delay(ee_addr);
+ }
+ iowrite32(EE_ChipSelect, ee_addr);
+ eeprom_delay(ee_addr);
+
+ for (i = 16; i > 0; i--) {
+ iowrite32(EE_ChipSelect | EE_ShiftClk, ee_addr);
+ eeprom_delay(ee_addr);
+ retval = (retval << 1) | ((ioread32(ee_addr) & EE_DataIn) ? 1 : 0);
+ iowrite32(EE_ChipSelect, ee_addr);
+ eeprom_delay(ee_addr);
+ }
+
+ /* Terminate the EEPROM access. */
+ iowrite32(0, ee_addr);
+ return retval;
+}
+
+/* MII transceiver control section.
+ Read and write the MII registers using software-generated serial
+ MDIO protocol. See the MII specifications or DP83840A data sheet
+ for details.
+
+ The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
+ met by back-to-back 33Mhz PCI cycles. */
+#define mdio_delay(mdio_addr) ioread32(mdio_addr)
+
+/* Set iff a MII transceiver on any interface requires mdio preamble.
+ This only set with older transceivers, so the extra
+ code size of a per-interface flag is not worthwhile. */
+static char mii_preamble_required = 1;
+
+#define MDIO_WRITE0 (MDIO_EnbOutput)
+#define MDIO_WRITE1 (MDIO_DataOut | MDIO_EnbOutput)
+
+/* Generate the preamble required for initial synchronization and
+ a few older transceivers. */
+static void mdio_sync(void __iomem *mdio_addr)
+{
+ int bits = 32;
+
+ /* Establish sync by sending at least 32 logic ones. */
+ while (--bits >= 0) {
+ iowrite32(MDIO_WRITE1, mdio_addr);
+ mdio_delay(mdio_addr);
+ iowrite32(MDIO_WRITE1 | MDIO_ShiftClk, mdio_addr);
+ mdio_delay(mdio_addr);
+ }
+}
+
+static int mdio_read(struct net_device *dev, int phy_id, int location)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ void __iomem *mdio_addr = np->base_addr + MIICtrl;
+ int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location;
+ int i, retval = 0;
+
+ if (mii_preamble_required)
+ mdio_sync(mdio_addr);
+
+ /* Shift the read command bits out. */
+ for (i = 15; i >= 0; i--) {
+ int dataval = (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0;
+
+ iowrite32(dataval, mdio_addr);
+ mdio_delay(mdio_addr);
+ iowrite32(dataval | MDIO_ShiftClk, mdio_addr);
+ mdio_delay(mdio_addr);
+ }
+ /* Read the two transition, 16 data, and wire-idle bits. */
+ for (i = 20; i > 0; i--) {
+ iowrite32(MDIO_EnbIn, mdio_addr);
+ mdio_delay(mdio_addr);
+ retval = (retval << 1) | ((ioread32(mdio_addr) & MDIO_DataIn) ? 1 : 0);
+ iowrite32(MDIO_EnbIn | MDIO_ShiftClk, mdio_addr);
+ mdio_delay(mdio_addr);
+ }
+ return (retval>>1) & 0xffff;
+}
+
+static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ void __iomem *mdio_addr = np->base_addr + MIICtrl;
+ int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location<<18) | value;
+ int i;
+
+ if (location == 4 && phy_id == np->phys[0])
+ np->mii_if.advertising = value;
+
+ if (mii_preamble_required)
+ mdio_sync(mdio_addr);
+
+ /* Shift the command bits out. */
+ for (i = 31; i >= 0; i--) {
+ int dataval = (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0;
+
+ iowrite32(dataval, mdio_addr);
+ mdio_delay(mdio_addr);
+ iowrite32(dataval | MDIO_ShiftClk, mdio_addr);
+ mdio_delay(mdio_addr);
+ }
+ /* Clear out extra bits. */
+ for (i = 2; i > 0; i--) {
+ iowrite32(MDIO_EnbIn, mdio_addr);
+ mdio_delay(mdio_addr);
+ iowrite32(MDIO_EnbIn | MDIO_ShiftClk, mdio_addr);
+ mdio_delay(mdio_addr);
+ }
+ return;
+}
+
+
+static int netdev_open(struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ void __iomem *ioaddr = np->base_addr;
+ int i;
+
+ iowrite32(0x00000001, ioaddr + PCIBusCfg); /* Reset */
+
+ netif_device_detach(dev);
+ i = request_irq(dev->irq, &intr_handler, SA_SHIRQ, dev->name, dev);
+ if (i)
+ goto out_err;
+
+ if (debug > 1)
+ printk(KERN_DEBUG "%s: w89c840_open() irq %d.\n",
+ dev->name, dev->irq);
+
+ if((i=alloc_ringdesc(dev)))
+ goto out_err;
+
+ spin_lock_irq(&np->lock);
+ netif_device_attach(dev);
+ init_registers(dev);
+ spin_unlock_irq(&np->lock);
+
+ netif_start_queue(dev);
+ if (debug > 2)
+ printk(KERN_DEBUG "%s: Done netdev_open().\n", dev->name);
+
+ /* Set the timer to check for link beat. */
+ init_timer(&np->timer);
+ np->timer.expires = jiffies + 1*HZ;
+ np->timer.data = (unsigned long)dev;
+ np->timer.function = &netdev_timer; /* timer handler */
+ add_timer(&np->timer);
+ return 0;
+out_err:
+ netif_device_attach(dev);
+ return i;
+}
+
+#define MII_DAVICOM_DM9101 0x0181b800
+
+static int update_link(struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ int duplex, fasteth, result, mii_reg;
+
+ /* BSMR */
+ mii_reg = mdio_read(dev, np->phys[0], MII_BMSR);
+
+ if (mii_reg == 0xffff)
+ return np->csr6;
+ /* reread: the link status bit is sticky */
+ mii_reg = mdio_read(dev, np->phys[0], MII_BMSR);
+ if (!(mii_reg & 0x4)) {
+ if (netif_carrier_ok(dev)) {
+ if (debug)
+ printk(KERN_INFO "%s: MII #%d reports no link. Disabling watchdog.\n",
+ dev->name, np->phys[0]);
+ netif_carrier_off(dev);
+ }
+ return np->csr6;
+ }
+ if (!netif_carrier_ok(dev)) {
+ if (debug)
+ printk(KERN_INFO "%s: MII #%d link is back. Enabling watchdog.\n",
+ dev->name, np->phys[0]);
+ netif_carrier_on(dev);
+ }
+
+ if ((np->mii & ~0xf) == MII_DAVICOM_DM9101) {
+ /* If the link partner doesn't support autonegotiation
+ * the MII detects it's abilities with the "parallel detection".
+ * Some MIIs update the LPA register to the result of the parallel
+ * detection, some don't.
+ * The Davicom PHY [at least 0181b800] doesn't.
+ * Instead bit 9 and 13 of the BMCR are updated to the result
+ * of the negotiation..
+ */
+ mii_reg = mdio_read(dev, np->phys[0], MII_BMCR);
+ duplex = mii_reg & BMCR_FULLDPLX;
+ fasteth = mii_reg & BMCR_SPEED100;
+ } else {
+ int negotiated;
+ mii_reg = mdio_read(dev, np->phys[0], MII_LPA);
+ negotiated = mii_reg & np->mii_if.advertising;
+
+ duplex = (negotiated & LPA_100FULL) || ((negotiated & 0x02C0) == LPA_10FULL);
+ fasteth = negotiated & 0x380;
+ }
+ duplex |= np->mii_if.force_media;
+ /* remove fastether and fullduplex */
+ result = np->csr6 & ~0x20000200;
+ if (duplex)
+ result |= 0x200;
+ if (fasteth)
+ result |= 0x20000000;
+ if (result != np->csr6 && debug)
+ printk(KERN_INFO "%s: Setting %dMBit-%s-duplex based on MII#%d\n",
+ dev->name, fasteth ? 100 : 10,
+ duplex ? "full" : "half", np->phys[0]);
+ return result;
+}
+
+#define RXTX_TIMEOUT 2000
+static inline void update_csr6(struct net_device *dev, int new)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ void __iomem *ioaddr = np->base_addr;
+ int limit = RXTX_TIMEOUT;
+
+ if (!netif_device_present(dev))
+ new = 0;
+ if (new==np->csr6)
+ return;
+ /* stop both Tx and Rx processes */
+ iowrite32(np->csr6 & ~0x2002, ioaddr + NetworkConfig);
+ /* wait until they have really stopped */
+ for (;;) {
+ int csr5 = ioread32(ioaddr + IntrStatus);
+ int t;
+
+ t = (csr5 >> 17) & 0x07;
+ if (t==0||t==1) {
+ /* rx stopped */
+ t = (csr5 >> 20) & 0x07;
+ if (t==0||t==1)
+ break;
+ }
+
+ limit--;
+ if(!limit) {
+ printk(KERN_INFO "%s: couldn't stop rxtx, IntrStatus %xh.\n",
+ dev->name, csr5);
+ break;
+ }
+ udelay(1);
+ }
+ np->csr6 = new;
+ /* and restart them with the new configuration */
+ iowrite32(np->csr6, ioaddr + NetworkConfig);
+ if (new & 0x200)
+ np->mii_if.full_duplex = 1;
+}
+
+static void netdev_timer(unsigned long data)
+{
+ struct net_device *dev = (struct net_device *)data;
+ struct netdev_private *np = netdev_priv(dev);
+ void __iomem *ioaddr = np->base_addr;
+
+ if (debug > 2)
+ printk(KERN_DEBUG "%s: Media selection timer tick, status %8.8x "
+ "config %8.8x.\n",
+ dev->name, ioread32(ioaddr + IntrStatus),
+ ioread32(ioaddr + NetworkConfig));
+ spin_lock_irq(&np->lock);
+ update_csr6(dev, update_link(dev));
+ spin_unlock_irq(&np->lock);
+ np->timer.expires = jiffies + 10*HZ;
+ add_timer(&np->timer);
+}
+
+static void init_rxtx_rings(struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ int i;
+
+ np->rx_head_desc = &np->rx_ring[0];
+ np->tx_ring = (struct w840_tx_desc*)&np->rx_ring[RX_RING_SIZE];
+
+ /* Initial all Rx descriptors. */
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ np->rx_ring[i].length = np->rx_buf_sz;
+ np->rx_ring[i].status = 0;
+ np->rx_skbuff[i] = NULL;
+ }
+ /* Mark the last entry as wrapping the ring. */
+ np->rx_ring[i-1].length |= DescEndRing;
+
+ /* Fill in the Rx buffers. Handle allocation failure gracefully. */
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz);
+ np->rx_skbuff[i] = skb;
+ if (skb == NULL)
+ break;
+ skb->dev = dev; /* Mark as being used by this device. */
+ np->rx_addr[i] = pci_map_single(np->pci_dev,skb->tail,
+ skb->len,PCI_DMA_FROMDEVICE);
+
+ np->rx_ring[i].buffer1 = np->rx_addr[i];
+ np->rx_ring[i].status = DescOwn;
+ }
+
+ np->cur_rx = 0;
+ np->dirty_rx = (unsigned int)(i - RX_RING_SIZE);
+
+ /* Initialize the Tx descriptors */
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ np->tx_skbuff[i] = NULL;
+ np->tx_ring[i].status = 0;
+ }
+ np->tx_full = 0;
+ np->tx_q_bytes = np->dirty_tx = np->cur_tx = 0;
+
+ iowrite32(np->ring_dma_addr, np->base_addr + RxRingPtr);
+ iowrite32(np->ring_dma_addr+sizeof(struct w840_rx_desc)*RX_RING_SIZE,
+ np->base_addr + TxRingPtr);
+
+}
+
+static void free_rxtx_rings(struct netdev_private* np)
+{
+ int i;
+ /* Free all the skbuffs in the Rx queue. */
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ np->rx_ring[i].status = 0;
+ if (np->rx_skbuff[i]) {
+ pci_unmap_single(np->pci_dev,
+ np->rx_addr[i],
+ np->rx_skbuff[i]->len,
+ PCI_DMA_FROMDEVICE);
+ dev_kfree_skb(np->rx_skbuff[i]);
+ }
+ np->rx_skbuff[i] = NULL;
+ }
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ if (np->tx_skbuff[i]) {
+ pci_unmap_single(np->pci_dev,
+ np->tx_addr[i],
+ np->tx_skbuff[i]->len,
+ PCI_DMA_TODEVICE);
+ dev_kfree_skb(np->tx_skbuff[i]);
+ }
+ np->tx_skbuff[i] = NULL;
+ }
+}
+
+static void init_registers(struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ void __iomem *ioaddr = np->base_addr;
+ int i;
+
+ for (i = 0; i < 6; i++)
+ iowrite8(dev->dev_addr[i], ioaddr + StationAddr + i);
+
+ /* Initialize other registers. */
+#ifdef __BIG_ENDIAN
+ i = (1<<20); /* Big-endian descriptors */
+#else
+ i = 0;
+#endif
+ i |= (0x04<<2); /* skip length 4 u32 */
+ i |= 0x02; /* give Rx priority */
+
+ /* Configure the PCI bus bursts and FIFO thresholds.
+ 486: Set 8 longword cache alignment, 8 longword burst.
+ 586: Set 16 longword cache alignment, no burst limit.
+ Cache alignment bits 15:14 Burst length 13:8
+ 0000 <not allowed> 0000 align to cache 0800 8 longwords
+ 4000 8 longwords 0100 1 longword 1000 16 longwords
+ 8000 16 longwords 0200 2 longwords 2000 32 longwords
+ C000 32 longwords 0400 4 longwords */
+
+#if defined (__i386__) && !defined(MODULE)
+ /* When not a module we can work around broken '486 PCI boards. */
+ if (boot_cpu_data.x86 <= 4) {
+ i |= 0x4800;
+ printk(KERN_INFO "%s: This is a 386/486 PCI system, setting cache "
+ "alignment to 8 longwords.\n", dev->name);
+ } else {
+ i |= 0xE000;
+ }
+#elif defined(__powerpc__) || defined(__i386__) || defined(__alpha__) || defined(__ia64__) || defined(__x86_64__)
+ i |= 0xE000;
+#elif defined(__sparc__)
+ i |= 0x4800;
+#else
+#warning Processor architecture undefined
+ i |= 0x4800;
+#endif
+ iowrite32(i, ioaddr + PCIBusCfg);
+
+ np->csr6 = 0;
+ /* 128 byte Tx threshold;
+ Transmit on; Receive on; */
+ update_csr6(dev, 0x00022002 | update_link(dev) | __set_rx_mode(dev));
+
+ /* Clear and Enable interrupts by setting the interrupt mask. */
+ iowrite32(0x1A0F5, ioaddr + IntrStatus);
+ iowrite32(0x1A0F5, ioaddr + IntrEnable);
+
+ iowrite32(0, ioaddr + RxStartDemand);
+}
+
+static void tx_timeout(struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ void __iomem *ioaddr = np->base_addr;
+
+ printk(KERN_WARNING "%s: Transmit timed out, status %8.8x,"
+ " resetting...\n", dev->name, ioread32(ioaddr + IntrStatus));
+
+ {
+ int i;
+ printk(KERN_DEBUG " Rx ring %p: ", np->rx_ring);
+ for (i = 0; i < RX_RING_SIZE; i++)
+ printk(" %8.8x", (unsigned int)np->rx_ring[i].status);
+ printk("\n"KERN_DEBUG" Tx ring %p: ", np->tx_ring);
+ for (i = 0; i < TX_RING_SIZE; i++)
+ printk(" %8.8x", np->tx_ring[i].status);
+ printk("\n");
+ }
+ printk(KERN_DEBUG "Tx cur %d Tx dirty %d Tx Full %d, q bytes %d.\n",
+ np->cur_tx, np->dirty_tx, np->tx_full, np->tx_q_bytes);
+ printk(KERN_DEBUG "Tx Descriptor addr %xh.\n",ioread32(ioaddr+0x4C));
+
+ disable_irq(dev->irq);
+ spin_lock_irq(&np->lock);
+ /*
+ * Under high load dirty_tx and the internal tx descriptor pointer
+ * come out of sync, thus perform a software reset and reinitialize
+ * everything.
+ */
+
+ iowrite32(1, np->base_addr+PCIBusCfg);
+ udelay(1);
+
+ free_rxtx_rings(np);
+ init_rxtx_rings(dev);
+ init_registers(dev);
+ spin_unlock_irq(&np->lock);
+ enable_irq(dev->irq);
+
+ netif_wake_queue(dev);
+ dev->trans_start = jiffies;
+ np->stats.tx_errors++;
+ return;
+}
+
+/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
+static int alloc_ringdesc(struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+
+ np->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32);
+
+ np->rx_ring = pci_alloc_consistent(np->pci_dev,
+ sizeof(struct w840_rx_desc)*RX_RING_SIZE +
+ sizeof(struct w840_tx_desc)*TX_RING_SIZE,
+ &np->ring_dma_addr);
+ if(!np->rx_ring)
+ return -ENOMEM;
+ init_rxtx_rings(dev);
+ return 0;
+}
+
+static void free_ringdesc(struct netdev_private *np)
+{
+ pci_free_consistent(np->pci_dev,
+ sizeof(struct w840_rx_desc)*RX_RING_SIZE +
+ sizeof(struct w840_tx_desc)*TX_RING_SIZE,
+ np->rx_ring, np->ring_dma_addr);
+
+}
+
+static int start_tx(struct sk_buff *skb, struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ unsigned entry;
+
+ /* Caution: the write order is important here, set the field
+ with the "ownership" bits last. */
+
+ /* Calculate the next Tx descriptor entry. */
+ entry = np->cur_tx % TX_RING_SIZE;
+
+ np->tx_addr[entry] = pci_map_single(np->pci_dev,
+ skb->data,skb->len, PCI_DMA_TODEVICE);
+ np->tx_skbuff[entry] = skb;
+
+ np->tx_ring[entry].buffer1 = np->tx_addr[entry];
+ if (skb->len < TX_BUFLIMIT) {
+ np->tx_ring[entry].length = DescWholePkt | skb->len;
+ } else {
+ int len = skb->len - TX_BUFLIMIT;
+
+ np->tx_ring[entry].buffer2 = np->tx_addr[entry]+TX_BUFLIMIT;
+ np->tx_ring[entry].length = DescWholePkt | (len << 11) | TX_BUFLIMIT;
+ }
+ if(entry == TX_RING_SIZE-1)
+ np->tx_ring[entry].length |= DescEndRing;
+
+ /* Now acquire the irq spinlock.
+ * The difficult race is the the ordering between
+ * increasing np->cur_tx and setting DescOwn:
+ * - if np->cur_tx is increased first the interrupt
+ * handler could consider the packet as transmitted
+ * since DescOwn is cleared.
+ * - If DescOwn is set first the NIC could report the
+ * packet as sent, but the interrupt handler would ignore it
+ * since the np->cur_tx was not yet increased.
+ */
+ spin_lock_irq(&np->lock);
+ np->cur_tx++;
+
+ wmb(); /* flush length, buffer1, buffer2 */
+ np->tx_ring[entry].status = DescOwn;
+ wmb(); /* flush status and kick the hardware */
+ iowrite32(0, np->base_addr + TxStartDemand);
+ np->tx_q_bytes += skb->len;
+ /* Work around horrible bug in the chip by marking the queue as full
+ when we do not have FIFO room for a maximum sized packet. */
+ if (np->cur_tx - np->dirty_tx > TX_QUEUE_LEN ||
+ ((np->drv_flags & HasBrokenTx) && np->tx_q_bytes > TX_BUG_FIFO_LIMIT)) {
+ netif_stop_queue(dev);
+ wmb();
+ np->tx_full = 1;
+ }
+ spin_unlock_irq(&np->lock);
+
+ dev->trans_start = jiffies;
+
+ if (debug > 4) {
+ printk(KERN_DEBUG "%s: Transmit frame #%d queued in slot %d.\n",
+ dev->name, np->cur_tx, entry);
+ }
+ return 0;
+}
+
+static void netdev_tx_done(struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ for (; np->cur_tx - np->dirty_tx > 0; np->dirty_tx++) {
+ int entry = np->dirty_tx % TX_RING_SIZE;
+ int tx_status = np->tx_ring[entry].status;
+
+ if (tx_status < 0)
+ break;
+ if (tx_status & 0x8000) { /* There was an error, log it. */
+#ifndef final_version
+ if (debug > 1)
+ printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n",
+ dev->name, tx_status);
+#endif
+ np->stats.tx_errors++;
+ if (tx_status & 0x0104) np->stats.tx_aborted_errors++;
+ if (tx_status & 0x0C80) np->stats.tx_carrier_errors++;
+ if (tx_status & 0x0200) np->stats.tx_window_errors++;
+ if (tx_status & 0x0002) np->stats.tx_fifo_errors++;
+ if ((tx_status & 0x0080) && np->mii_if.full_duplex == 0)
+ np->stats.tx_heartbeat_errors++;
+ } else {
+#ifndef final_version
+ if (debug > 3)
+ printk(KERN_DEBUG "%s: Transmit slot %d ok, Tx status %8.8x.\n",
+ dev->name, entry, tx_status);
+#endif
+ np->stats.tx_bytes += np->tx_skbuff[entry]->len;
+ np->stats.collisions += (tx_status >> 3) & 15;
+ np->stats.tx_packets++;
+ }
+ /* Free the original skb. */
+ pci_unmap_single(np->pci_dev,np->tx_addr[entry],
+ np->tx_skbuff[entry]->len,
+ PCI_DMA_TODEVICE);
+ np->tx_q_bytes -= np->tx_skbuff[entry]->len;
+ dev_kfree_skb_irq(np->tx_skbuff[entry]);
+ np->tx_skbuff[entry] = NULL;
+ }
+ if (np->tx_full &&
+ np->cur_tx - np->dirty_tx < TX_QUEUE_LEN_RESTART &&
+ np->tx_q_bytes < TX_BUG_FIFO_LIMIT) {
+ /* The ring is no longer full, clear tbusy. */
+ np->tx_full = 0;
+ wmb();
+ netif_wake_queue(dev);
+ }
+}
+
+/* The interrupt handler does all of the Rx thread work and cleans up
+ after the Tx thread. */
+static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *rgs)
+{
+ struct net_device *dev = (struct net_device *)dev_instance;
+ struct netdev_private *np = netdev_priv(dev);
+ void __iomem *ioaddr = np->base_addr;
+ int work_limit = max_interrupt_work;
+ int handled = 0;
+
+ if (!netif_device_present(dev))
+ return IRQ_NONE;
+ do {
+ u32 intr_status = ioread32(ioaddr + IntrStatus);
+
+ /* Acknowledge all of the current interrupt sources ASAP. */
+ iowrite32(intr_status & 0x001ffff, ioaddr + IntrStatus);
+
+ if (debug > 4)
+ printk(KERN_DEBUG "%s: Interrupt, status %4.4x.\n",
+ dev->name, intr_status);
+
+ if ((intr_status & (NormalIntr|AbnormalIntr)) == 0)
+ break;
+
+ handled = 1;
+
+ if (intr_status & (IntrRxDone | RxNoBuf))
+ netdev_rx(dev);
+ if (intr_status & RxNoBuf)
+ iowrite32(0, ioaddr + RxStartDemand);
+
+ if (intr_status & (TxIdle | IntrTxDone) &&
+ np->cur_tx != np->dirty_tx) {
+ spin_lock(&np->lock);
+ netdev_tx_done(dev);
+ spin_unlock(&np->lock);
+ }
+
+ /* Abnormal error summary/uncommon events handlers. */
+ if (intr_status & (AbnormalIntr | TxFIFOUnderflow | IntrPCIErr |
+ TimerInt | IntrTxStopped))
+ netdev_error(dev, intr_status);
+
+ if (--work_limit < 0) {
+ printk(KERN_WARNING "%s: Too much work at interrupt, "
+ "status=0x%4.4x.\n", dev->name, intr_status);
+ /* Set the timer to re-enable the other interrupts after
+ 10*82usec ticks. */
+ spin_lock(&np->lock);
+ if (netif_device_present(dev)) {
+ iowrite32(AbnormalIntr | TimerInt, ioaddr + IntrEnable);
+ iowrite32(10, ioaddr + GPTimer);
+ }
+ spin_unlock(&np->lock);
+ break;
+ }
+ } while (1);
+
+ if (debug > 3)
+ printk(KERN_DEBUG "%s: exiting interrupt, status=%#4.4x.\n",
+ dev->name, ioread32(ioaddr + IntrStatus));
+ return IRQ_RETVAL(handled);
+}
+
+/* This routine is logically part of the interrupt handler, but separated
+ for clarity and better register allocation. */
+static int netdev_rx(struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ int entry = np->cur_rx % RX_RING_SIZE;
+ int work_limit = np->dirty_rx + RX_RING_SIZE - np->cur_rx;
+
+ if (debug > 4) {
+ printk(KERN_DEBUG " In netdev_rx(), entry %d status %4.4x.\n",
+ entry, np->rx_ring[entry].status);
+ }
+
+ /* If EOP is set on the next entry, it's a new packet. Send it up. */
+ while (--work_limit >= 0) {
+ struct w840_rx_desc *desc = np->rx_head_desc;
+ s32 status = desc->status;
+
+ if (debug > 4)
+ printk(KERN_DEBUG " netdev_rx() status was %8.8x.\n",
+ status);
+ if (status < 0)
+ break;
+ if ((status & 0x38008300) != 0x0300) {
+ if ((status & 0x38000300) != 0x0300) {
+ /* Ingore earlier buffers. */
+ if ((status & 0xffff) != 0x7fff) {
+ printk(KERN_WARNING "%s: Oversized Ethernet frame spanned "
+ "multiple buffers, entry %#x status %4.4x!\n",
+ dev->name, np->cur_rx, status);
+ np->stats.rx_length_errors++;
+ }
+ } else if (status & 0x8000) {
+ /* There was a fatal error. */
+ if (debug > 2)
+ printk(KERN_DEBUG "%s: Receive error, Rx status %8.8x.\n",
+ dev->name, status);
+ np->stats.rx_errors++; /* end of a packet.*/
+ if (status & 0x0890) np->stats.rx_length_errors++;
+ if (status & 0x004C) np->stats.rx_frame_errors++;
+ if (status & 0x0002) np->stats.rx_crc_errors++;
+ }
+ } else {
+ struct sk_buff *skb;
+ /* Omit the four octet CRC from the length. */
+ int pkt_len = ((status >> 16) & 0x7ff) - 4;
+
+#ifndef final_version
+ if (debug > 4)
+ printk(KERN_DEBUG " netdev_rx() normal Rx pkt length %d"
+ " status %x.\n", pkt_len, status);
+#endif
+ /* Check if the packet is long enough to accept without copying
+ to a minimally-sized skbuff. */
+ if (pkt_len < rx_copybreak
+ && (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
+ skb->dev = dev;
+ skb_reserve(skb, 2); /* 16 byte align the IP header */
+ pci_dma_sync_single_for_cpu(np->pci_dev,np->rx_addr[entry],
+ np->rx_skbuff[entry]->len,
+ PCI_DMA_FROMDEVICE);
+ eth_copy_and_sum(skb, np->rx_skbuff[entry]->tail, pkt_len, 0);
+ skb_put(skb, pkt_len);
+ pci_dma_sync_single_for_device(np->pci_dev,np->rx_addr[entry],
+ np->rx_skbuff[entry]->len,
+ PCI_DMA_FROMDEVICE);
+ } else {
+ pci_unmap_single(np->pci_dev,np->rx_addr[entry],
+ np->rx_skbuff[entry]->len,
+ PCI_DMA_FROMDEVICE);
+ skb_put(skb = np->rx_skbuff[entry], pkt_len);
+ np->rx_skbuff[entry] = NULL;
+ }
+#ifndef final_version /* Remove after testing. */
+ /* You will want this info for the initial debug. */
+ if (debug > 5)
+ printk(KERN_DEBUG " Rx data %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:"
+ "%2.2x %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x %2.2x%2.2x "
+ "%d.%d.%d.%d.\n",
+ skb->data[0], skb->data[1], skb->data[2], skb->data[3],
+ skb->data[4], skb->data[5], skb->data[6], skb->data[7],
+ skb->data[8], skb->data[9], skb->data[10],
+ skb->data[11], skb->data[12], skb->data[13],
+ skb->data[14], skb->data[15], skb->data[16],
+ skb->data[17]);
+#endif
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_rx(skb);
+ dev->last_rx = jiffies;
+ np->stats.rx_packets++;
+ np->stats.rx_bytes += pkt_len;
+ }
+ entry = (++np->cur_rx) % RX_RING_SIZE;
+ np->rx_head_desc = &np->rx_ring[entry];
+ }
+
+ /* Refill the Rx ring buffers. */
+ for (; np->cur_rx - np->dirty_rx > 0; np->dirty_rx++) {
+ struct sk_buff *skb;
+ entry = np->dirty_rx % RX_RING_SIZE;
+ if (np->rx_skbuff[entry] == NULL) {
+ skb = dev_alloc_skb(np->rx_buf_sz);
+ np->rx_skbuff[entry] = skb;
+ if (skb == NULL)
+ break; /* Better luck next round. */
+ skb->dev = dev; /* Mark as being used by this device. */
+ np->rx_addr[entry] = pci_map_single(np->pci_dev,
+ skb->tail,
+ skb->len, PCI_DMA_FROMDEVICE);
+ np->rx_ring[entry].buffer1 = np->rx_addr[entry];
+ }
+ wmb();
+ np->rx_ring[entry].status = DescOwn;
+ }
+
+ return 0;
+}
+
+static void netdev_error(struct net_device *dev, int intr_status)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ void __iomem *ioaddr = np->base_addr;
+
+ if (debug > 2)
+ printk(KERN_DEBUG "%s: Abnormal event, %8.8x.\n",
+ dev->name, intr_status);
+ if (intr_status == 0xffffffff)
+ return;
+ spin_lock(&np->lock);
+ if (intr_status & TxFIFOUnderflow) {
+ int new;
+ /* Bump up the Tx threshold */
+#if 0
+ /* This causes lots of dropped packets,
+ * and under high load even tx_timeouts
+ */
+ new = np->csr6 + 0x4000;
+#else
+ new = (np->csr6 >> 14)&0x7f;
+ if (new < 64)
+ new *= 2;
+ else
+ new = 127; /* load full packet before starting */
+ new = (np->csr6 & ~(0x7F << 14)) | (new<<14);
+#endif
+ printk(KERN_DEBUG "%s: Tx underflow, new csr6 %8.8x.\n",
+ dev->name, new);
+ update_csr6(dev, new);
+ }
+ if (intr_status & IntrRxDied) { /* Missed a Rx frame. */
+ np->stats.rx_errors++;
+ }
+ if (intr_status & TimerInt) {
+ /* Re-enable other interrupts. */
+ if (netif_device_present(dev))
+ iowrite32(0x1A0F5, ioaddr + IntrEnable);
+ }
+ np->stats.rx_missed_errors += ioread32(ioaddr + RxMissed) & 0xffff;
+ iowrite32(0, ioaddr + RxStartDemand);
+ spin_unlock(&np->lock);
+}
+
+static struct net_device_stats *get_stats(struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ void __iomem *ioaddr = np->base_addr;
+
+ /* The chip only need report frame silently dropped. */
+ spin_lock_irq(&np->lock);
+ if (netif_running(dev) && netif_device_present(dev))
+ np->stats.rx_missed_errors += ioread32(ioaddr + RxMissed) & 0xffff;
+ spin_unlock_irq(&np->lock);
+
+ return &np->stats;
+}
+
+
+static u32 __set_rx_mode(struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ void __iomem *ioaddr = np->base_addr;
+ u32 mc_filter[2]; /* Multicast hash filter */
+ u32 rx_mode;
+
+ if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
+ /* Unconditionally log net taps. */
+ printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name);
+ memset(mc_filter, 0xff, sizeof(mc_filter));
+ rx_mode = AcceptBroadcast | AcceptMulticast | AcceptAllPhys
+ | AcceptMyPhys;
+ } else if ((dev->mc_count > multicast_filter_limit)
+ || (dev->flags & IFF_ALLMULTI)) {
+ /* Too many to match, or accept all multicasts. */
+ memset(mc_filter, 0xff, sizeof(mc_filter));
+ rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
+ } else {
+ struct dev_mc_list *mclist;
+ int i;
+ memset(mc_filter, 0, sizeof(mc_filter));
+ for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
+ i++, mclist = mclist->next) {
+ int filterbit = (ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26) ^ 0x3F;
+ filterbit &= 0x3f;
+ mc_filter[filterbit >> 5] |= 1 << (filterbit & 31);
+ }
+ rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
+ }
+ iowrite32(mc_filter[0], ioaddr + MulticastFilter0);
+ iowrite32(mc_filter[1], ioaddr + MulticastFilter1);
+ return rx_mode;
+}
+
+static void set_rx_mode(struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ u32 rx_mode = __set_rx_mode(dev);
+ spin_lock_irq(&np->lock);
+ update_csr6(dev, (np->csr6 & ~0x00F8) | rx_mode);
+ spin_unlock_irq(&np->lock);
+}
+
+static void netdev_get_drvinfo (struct net_device *dev, struct ethtool_drvinfo *info)
+{
+ struct netdev_private *np = netdev_priv(dev);
+
+ strcpy (info->driver, DRV_NAME);
+ strcpy (info->version, DRV_VERSION);
+ strcpy (info->bus_info, pci_name(np->pci_dev));
+}
+
+static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ int rc;
+
+ spin_lock_irq(&np->lock);
+ rc = mii_ethtool_gset(&np->mii_if, cmd);
+ spin_unlock_irq(&np->lock);
+
+ return rc;
+}
+
+static int netdev_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ int rc;
+
+ spin_lock_irq(&np->lock);
+ rc = mii_ethtool_sset(&np->mii_if, cmd);
+ spin_unlock_irq(&np->lock);
+
+ return rc;
+}
+
+static int netdev_nway_reset(struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ return mii_nway_restart(&np->mii_if);
+}
+
+static u32 netdev_get_link(struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ return mii_link_ok(&np->mii_if);
+}
+
+static u32 netdev_get_msglevel(struct net_device *dev)
+{
+ return debug;
+}
+
+static void netdev_set_msglevel(struct net_device *dev, u32 value)
+{
+ debug = value;
+}
+
+static struct ethtool_ops netdev_ethtool_ops = {
+ .get_drvinfo = netdev_get_drvinfo,
+ .get_settings = netdev_get_settings,
+ .set_settings = netdev_set_settings,
+ .nway_reset = netdev_nway_reset,
+ .get_link = netdev_get_link,
+ .get_msglevel = netdev_get_msglevel,
+ .set_msglevel = netdev_set_msglevel,
+ .get_sg = ethtool_op_get_sg,
+ .get_tx_csum = ethtool_op_get_tx_csum,
+};
+
+static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct mii_ioctl_data *data = if_mii(rq);
+ struct netdev_private *np = netdev_priv(dev);
+
+ switch(cmd) {
+ case SIOCGMIIPHY: /* Get address of MII PHY in use. */
+ data->phy_id = ((struct netdev_private *)netdev_priv(dev))->phys[0] & 0x1f;
+ /* Fall Through */
+
+ case SIOCGMIIREG: /* Read MII PHY register. */
+ spin_lock_irq(&np->lock);
+ data->val_out = mdio_read(dev, data->phy_id & 0x1f, data->reg_num & 0x1f);
+ spin_unlock_irq(&np->lock);
+ return 0;
+
+ case SIOCSMIIREG: /* Write MII PHY register. */
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+ spin_lock_irq(&np->lock);
+ mdio_write(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in);
+ spin_unlock_irq(&np->lock);
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int netdev_close(struct net_device *dev)
+{
+ struct netdev_private *np = netdev_priv(dev);
+ void __iomem *ioaddr = np->base_addr;
+
+ netif_stop_queue(dev);
+
+ if (debug > 1) {
+ printk(KERN_DEBUG "%s: Shutting down ethercard, status was %8.8x "
+ "Config %8.8x.\n", dev->name, ioread32(ioaddr + IntrStatus),
+ ioread32(ioaddr + NetworkConfig));
+ printk(KERN_DEBUG "%s: Queue pointers were Tx %d / %d, Rx %d / %d.\n",
+ dev->name, np->cur_tx, np->dirty_tx, np->cur_rx, np->dirty_rx);
+ }
+
+ /* Stop the chip's Tx and Rx processes. */
+ spin_lock_irq(&np->lock);
+ netif_device_detach(dev);
+ update_csr6(dev, 0);
+ iowrite32(0x0000, ioaddr + IntrEnable);
+ spin_unlock_irq(&np->lock);
+
+ free_irq(dev->irq, dev);
+ wmb();
+ netif_device_attach(dev);
+
+ if (ioread32(ioaddr + NetworkConfig) != 0xffffffff)
+ np->stats.rx_missed_errors += ioread32(ioaddr + RxMissed) & 0xffff;
+
+#ifdef __i386__
+ if (debug > 2) {
+ int i;
+
+ printk(KERN_DEBUG" Tx ring at %8.8x:\n",
+ (int)np->tx_ring);
+ for (i = 0; i < TX_RING_SIZE; i++)
+ printk(KERN_DEBUG " #%d desc. %4.4x %4.4x %8.8x.\n",
+ i, np->tx_ring[i].length,
+ np->tx_ring[i].status, np->tx_ring[i].buffer1);
+ printk("\n"KERN_DEBUG " Rx ring %8.8x:\n",
+ (int)np->rx_ring);
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ printk(KERN_DEBUG " #%d desc. %4.4x %4.4x %8.8x\n",
+ i, np->rx_ring[i].length,
+ np->rx_ring[i].status, np->rx_ring[i].buffer1);
+ }
+ }
+#endif /* __i386__ debugging only */
+
+ del_timer_sync(&np->timer);
+
+ free_rxtx_rings(np);
+ free_ringdesc(np);
+
+ return 0;
+}
+
+static void __devexit w840_remove1 (struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+
+ if (dev) {
+ struct netdev_private *np = netdev_priv(dev);
+ unregister_netdev(dev);
+ pci_release_regions(pdev);
+ pci_iounmap(pdev, np->base_addr);
+ free_netdev(dev);
+ }
+
+ pci_set_drvdata(pdev, NULL);
+}
+
+#ifdef CONFIG_PM
+
+/*
+ * suspend/resume synchronization:
+ * - open, close, do_ioctl:
+ * rtnl_lock, & netif_device_detach after the rtnl_unlock.
+ * - get_stats:
+ * spin_lock_irq(np->lock), doesn't touch hw if not present
+ * - hard_start_xmit:
+ * netif_stop_queue + spin_unlock_wait(&dev->xmit_lock);
+ * - tx_timeout:
+ * netif_device_detach + spin_unlock_wait(&dev->xmit_lock);
+ * - set_multicast_list
+ * netif_device_detach + spin_unlock_wait(&dev->xmit_lock);
+ * - interrupt handler
+ * doesn't touch hw if not present, synchronize_irq waits for
+ * running instances of the interrupt handler.
+ *
+ * Disabling hw requires clearing csr6 & IntrEnable.
+ * update_csr6 & all function that write IntrEnable check netif_device_present
+ * before settings any bits.
+ *
+ * Detach must occur under spin_unlock_irq(), interrupts from a detached
+ * device would cause an irq storm.
+ */
+static int w840_suspend (struct pci_dev *pdev, u32 state)
+{
+ struct net_device *dev = pci_get_drvdata (pdev);
+ struct netdev_private *np = netdev_priv(dev);
+ void __iomem *ioaddr = np->base_addr;
+
+ rtnl_lock();
+ if (netif_running (dev)) {
+ del_timer_sync(&np->timer);
+
+ spin_lock_irq(&np->lock);
+ netif_device_detach(dev);
+ update_csr6(dev, 0);
+ iowrite32(0, ioaddr + IntrEnable);
+ netif_stop_queue(dev);
+ spin_unlock_irq(&np->lock);
+
+ spin_unlock_wait(&dev->xmit_lock);
+ synchronize_irq(dev->irq);
+
+ np->stats.rx_missed_errors += ioread32(ioaddr + RxMissed) & 0xffff;
+
+ /* no more hardware accesses behind this line. */
+
+ if (np->csr6) BUG();
+ if (ioread32(ioaddr + IntrEnable)) BUG();
+
+ /* pci_power_off(pdev, -1); */
+
+ free_rxtx_rings(np);
+ } else {
+ netif_device_detach(dev);
+ }
+ rtnl_unlock();
+ return 0;
+}
+
+static int w840_resume (struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata (pdev);
+ struct netdev_private *np = netdev_priv(dev);
+
+ rtnl_lock();
+ if (netif_device_present(dev))
+ goto out; /* device not suspended */
+ if (netif_running(dev)) {
+ pci_enable_device(pdev);
+ /* pci_power_on(pdev); */
+
+ spin_lock_irq(&np->lock);
+ iowrite32(1, np->base_addr+PCIBusCfg);
+ ioread32(np->base_addr+PCIBusCfg);
+ udelay(1);
+ netif_device_attach(dev);
+ init_rxtx_rings(dev);
+ init_registers(dev);
+ spin_unlock_irq(&np->lock);
+
+ netif_wake_queue(dev);
+
+ mod_timer(&np->timer, jiffies + 1*HZ);
+ } else {
+ netif_device_attach(dev);
+ }
+out:
+ rtnl_unlock();
+ return 0;
+}
+#endif
+
+static struct pci_driver w840_driver = {
+ .name = DRV_NAME,
+ .id_table = w840_pci_tbl,
+ .probe = w840_probe1,
+ .remove = __devexit_p(w840_remove1),
+#ifdef CONFIG_PM
+ .suspend = w840_suspend,
+ .resume = w840_resume,
+#endif
+};
+
+static int __init w840_init(void)
+{
+ printk(version);
+ return pci_module_init(&w840_driver);
+}
+
+static void __exit w840_exit(void)
+{
+ pci_unregister_driver(&w840_driver);
+}
+
+module_init(w840_init);
+module_exit(w840_exit);
diff --git a/drivers/net/tulip/xircom_cb.c b/drivers/net/tulip/xircom_cb.c
new file mode 100644
index 000000000000..26cc4f6378c7
--- /dev/null
+++ b/drivers/net/tulip/xircom_cb.c
@@ -0,0 +1,1277 @@
+/*
+ * xircom_cb: A driver for the (tulip-like) Xircom Cardbus ethernet cards
+ *
+ * This software is (C) by the respective authors, and licensed under the GPL
+ * License.
+ *
+ * Written by Arjan van de Ven for Red Hat, Inc.
+ * Based on work by Jeff Garzik, Doug Ledford and Donald Becker
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ *
+ * $Id: xircom_cb.c,v 1.33 2001/03/19 14:02:07 arjanv Exp $
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/ethtool.h>
+#include <linux/bitops.h>
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+#ifdef DEBUG
+#define enter(x) printk("Enter: %s, %s line %i\n",x,__FILE__,__LINE__)
+#define leave(x) printk("Leave: %s, %s line %i\n",x,__FILE__,__LINE__)
+#else
+#define enter(x) do {} while (0)
+#define leave(x) do {} while (0)
+#endif
+
+
+MODULE_DESCRIPTION("Xircom Cardbus ethernet driver");
+MODULE_AUTHOR("Arjan van de Ven <arjanv@redhat.com>");
+MODULE_LICENSE("GPL");
+
+
+
+/* IO registers on the card, offsets */
+#define CSR0 0x00
+#define CSR1 0x08
+#define CSR2 0x10
+#define CSR3 0x18
+#define CSR4 0x20
+#define CSR5 0x28
+#define CSR6 0x30
+#define CSR7 0x38
+#define CSR8 0x40
+#define CSR9 0x48
+#define CSR10 0x50
+#define CSR11 0x58
+#define CSR12 0x60
+#define CSR13 0x68
+#define CSR14 0x70
+#define CSR15 0x78
+#define CSR16 0x80
+
+/* PCI registers */
+#define PCI_POWERMGMT 0x40
+
+/* Offsets of the buffers within the descriptor pages, in bytes */
+
+#define NUMDESCRIPTORS 4
+
+static int bufferoffsets[NUMDESCRIPTORS] = {128,2048,4096,6144};
+
+
+struct xircom_private {
+ /* Send and receive buffers, kernel-addressable and dma addressable forms */
+
+ unsigned int *rx_buffer;
+ unsigned int *tx_buffer;
+
+ dma_addr_t rx_dma_handle;
+ dma_addr_t tx_dma_handle;
+
+ struct sk_buff *tx_skb[4];
+
+ unsigned long io_port;
+ int open;
+
+ /* transmit_used is the rotating counter that indicates which transmit
+ descriptor has to be used next */
+ int transmit_used;
+
+ /* Spinlock to serialize register operations.
+ It must be helt while manipulating the following registers:
+ CSR0, CSR6, CSR7, CSR9, CSR10, CSR15
+ */
+ spinlock_t lock;
+
+
+ struct pci_dev *pdev;
+ struct net_device *dev;
+ struct net_device_stats stats;
+};
+
+
+/* Function prototypes */
+static int xircom_probe(struct pci_dev *pdev, const struct pci_device_id *id);
+static void xircom_remove(struct pci_dev *pdev);
+static irqreturn_t xircom_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
+static int xircom_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static int xircom_open(struct net_device *dev);
+static int xircom_close(struct net_device *dev);
+static void xircom_up(struct xircom_private *card);
+static struct net_device_stats *xircom_get_stats(struct net_device *dev);
+#if CONFIG_NET_POLL_CONTROLLER
+static void xircom_poll_controller(struct net_device *dev);
+#endif
+
+static void investigate_read_descriptor(struct net_device *dev,struct xircom_private *card, int descnr, unsigned int bufferoffset);
+static void investigate_write_descriptor(struct net_device *dev, struct xircom_private *card, int descnr, unsigned int bufferoffset);
+static void read_mac_address(struct xircom_private *card);
+static void transceiver_voodoo(struct xircom_private *card);
+static void initialize_card(struct xircom_private *card);
+static void trigger_transmit(struct xircom_private *card);
+static void trigger_receive(struct xircom_private *card);
+static void setup_descriptors(struct xircom_private *card);
+static void remove_descriptors(struct xircom_private *card);
+static int link_status_changed(struct xircom_private *card);
+static void activate_receiver(struct xircom_private *card);
+static void deactivate_receiver(struct xircom_private *card);
+static void activate_transmitter(struct xircom_private *card);
+static void deactivate_transmitter(struct xircom_private *card);
+static void enable_transmit_interrupt(struct xircom_private *card);
+static void enable_receive_interrupt(struct xircom_private *card);
+static void enable_link_interrupt(struct xircom_private *card);
+static void disable_all_interrupts(struct xircom_private *card);
+static int link_status(struct xircom_private *card);
+
+
+
+static struct pci_device_id xircom_pci_table[] = {
+ {0x115D, 0x0003, PCI_ANY_ID, PCI_ANY_ID,},
+ {0,},
+};
+MODULE_DEVICE_TABLE(pci, xircom_pci_table);
+
+static struct pci_driver xircom_ops = {
+ .name = "xircom_cb",
+ .id_table = xircom_pci_table,
+ .probe = xircom_probe,
+ .remove = xircom_remove,
+ .suspend =NULL,
+ .resume =NULL
+};
+
+
+#ifdef DEBUG
+static void print_binary(unsigned int number)
+{
+ int i,i2;
+ char buffer[64];
+ memset(buffer,0,64);
+ i2=0;
+ for (i=31;i>=0;i--) {
+ if (number & (1<<i))
+ buffer[i2++]='1';
+ else
+ buffer[i2++]='0';
+ if ((i&3)==0)
+ buffer[i2++]=' ';
+ }
+ printk("%s\n",buffer);
+}
+#endif
+
+static void netdev_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ struct xircom_private *private = netdev_priv(dev);
+
+ strcpy(info->driver, "xircom_cb");
+ strcpy(info->bus_info, pci_name(private->pdev));
+}
+
+static struct ethtool_ops netdev_ethtool_ops = {
+ .get_drvinfo = netdev_get_drvinfo,
+};
+
+/* xircom_probe is the code that gets called on device insertion.
+ it sets up the hardware and registers the device to the networklayer.
+
+ TODO: Send 1 or 2 "dummy" packets here as the card seems to discard the
+ first two packets that get send, and pump hates that.
+
+ */
+static int __devinit xircom_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct net_device *dev = NULL;
+ struct xircom_private *private;
+ unsigned char chip_rev;
+ unsigned long flags;
+ unsigned short tmp16;
+ enter("xircom_probe");
+
+ /* First do the PCI initialisation */
+
+ if (pci_enable_device(pdev))
+ return -ENODEV;
+
+ /* disable all powermanagement */
+ pci_write_config_dword(pdev, PCI_POWERMGMT, 0x0000);
+
+ pci_set_master(pdev); /* Why isn't this done by pci_enable_device ?*/
+
+ /* clear PCI status, if any */
+ pci_read_config_word (pdev,PCI_STATUS, &tmp16);
+ pci_write_config_word (pdev, PCI_STATUS,tmp16);
+
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &chip_rev);
+
+ if (!request_region(pci_resource_start(pdev, 0), 128, "xircom_cb")) {
+ printk(KERN_ERR "xircom_probe: failed to allocate io-region\n");
+ return -ENODEV;
+ }
+
+ /*
+ Before changing the hardware, allocate the memory.
+ This way, we can fail gracefully if not enough memory
+ is available.
+ */
+ dev = alloc_etherdev(sizeof(struct xircom_private));
+ if (!dev) {
+ printk(KERN_ERR "xircom_probe: failed to allocate etherdev\n");
+ goto device_fail;
+ }
+ private = netdev_priv(dev);
+
+ /* Allocate the send/receive buffers */
+ private->rx_buffer = pci_alloc_consistent(pdev,8192,&private->rx_dma_handle);
+ if (private->rx_buffer == NULL) {
+ printk(KERN_ERR "xircom_probe: no memory for rx buffer \n");
+ goto rx_buf_fail;
+ }
+ private->tx_buffer = pci_alloc_consistent(pdev,8192,&private->tx_dma_handle);
+ if (private->tx_buffer == NULL) {
+ printk(KERN_ERR "xircom_probe: no memory for tx buffer \n");
+ goto tx_buf_fail;
+ }
+
+ SET_MODULE_OWNER(dev);
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+
+ private->dev = dev;
+ private->pdev = pdev;
+ private->io_port = pci_resource_start(pdev, 0);
+ spin_lock_init(&private->lock);
+ dev->irq = pdev->irq;
+ dev->base_addr = private->io_port;
+
+ initialize_card(private);
+ read_mac_address(private);
+ setup_descriptors(private);
+
+ dev->open = &xircom_open;
+ dev->hard_start_xmit = &xircom_start_xmit;
+ dev->stop = &xircom_close;
+ dev->get_stats = &xircom_get_stats;
+ dev->priv = private;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = &xircom_poll_controller;
+#endif
+ SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
+ pci_set_drvdata(pdev, dev);
+
+ if (register_netdev(dev)) {
+ printk(KERN_ERR "xircom_probe: netdevice registration failed.\n");
+ goto reg_fail;
+ }
+
+ printk(KERN_INFO "%s: Xircom cardbus revision %i at irq %i \n", dev->name, chip_rev, pdev->irq);
+ /* start the transmitter to get a heartbeat */
+ /* TODO: send 2 dummy packets here */
+ transceiver_voodoo(private);
+
+ spin_lock_irqsave(&private->lock,flags);
+ activate_transmitter(private);
+ activate_receiver(private);
+ spin_unlock_irqrestore(&private->lock,flags);
+
+ trigger_receive(private);
+
+ leave("xircom_probe");
+ return 0;
+
+reg_fail:
+ kfree(private->tx_buffer);
+tx_buf_fail:
+ kfree(private->rx_buffer);
+rx_buf_fail:
+ free_netdev(dev);
+device_fail:
+ return -ENODEV;
+}
+
+
+/*
+ xircom_remove is called on module-unload or on device-eject.
+ it unregisters the irq, io-region and network device.
+ Interrupts and such are already stopped in the "ifconfig ethX down"
+ code.
+ */
+static void __devexit xircom_remove(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct xircom_private *card = netdev_priv(dev);
+
+ enter("xircom_remove");
+ pci_free_consistent(pdev,8192,card->rx_buffer,card->rx_dma_handle);
+ pci_free_consistent(pdev,8192,card->tx_buffer,card->tx_dma_handle);
+
+ release_region(dev->base_addr, 128);
+ unregister_netdev(dev);
+ free_netdev(dev);
+ pci_set_drvdata(pdev, NULL);
+ leave("xircom_remove");
+}
+
+static irqreturn_t xircom_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
+{
+ struct net_device *dev = (struct net_device *) dev_instance;
+ struct xircom_private *card = netdev_priv(dev);
+ unsigned int status;
+ int i;
+
+ enter("xircom_interrupt\n");
+
+ spin_lock(&card->lock);
+ status = inl(card->io_port+CSR5);
+
+#ifdef DEBUG
+ print_binary(status);
+ printk("tx status 0x%08x 0x%08x \n",card->tx_buffer[0],card->tx_buffer[4]);
+ printk("rx status 0x%08x 0x%08x \n",card->rx_buffer[0],card->rx_buffer[4]);
+#endif
+ /* Handle shared irq and hotplug */
+ if (status == 0 || status == 0xffffffff) {
+ spin_unlock(&card->lock);
+ return IRQ_NONE;
+ }
+
+ if (link_status_changed(card)) {
+ int newlink;
+ printk(KERN_DEBUG "xircom_cb: Link status has changed \n");
+ newlink = link_status(card);
+ printk(KERN_INFO "xircom_cb: Link is %i mbit \n",newlink);
+ if (newlink)
+ netif_carrier_on(dev);
+ else
+ netif_carrier_off(dev);
+
+ }
+
+ /* Clear all remaining interrupts */
+ status |= 0xffffffff; /* FIXME: make this clear only the
+ real existing bits */
+ outl(status,card->io_port+CSR5);
+
+
+ for (i=0;i<NUMDESCRIPTORS;i++)
+ investigate_write_descriptor(dev,card,i,bufferoffsets[i]);
+ for (i=0;i<NUMDESCRIPTORS;i++)
+ investigate_read_descriptor(dev,card,i,bufferoffsets[i]);
+
+
+ spin_unlock(&card->lock);
+ leave("xircom_interrupt");
+ return IRQ_HANDLED;
+}
+
+static int xircom_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct xircom_private *card;
+ unsigned long flags;
+ int nextdescriptor;
+ int desc;
+ enter("xircom_start_xmit");
+
+ card = netdev_priv(dev);
+ spin_lock_irqsave(&card->lock,flags);
+
+ /* First see if we can free some descriptors */
+ for (desc=0;desc<NUMDESCRIPTORS;desc++)
+ investigate_write_descriptor(dev,card,desc,bufferoffsets[desc]);
+
+
+ nextdescriptor = (card->transmit_used +1) % (NUMDESCRIPTORS);
+ desc = card->transmit_used;
+
+ /* only send the packet if the descriptor is free */
+ if (card->tx_buffer[4*desc]==0) {
+ /* Copy the packet data; zero the memory first as the card
+ sometimes sends more than you ask it to. */
+
+ memset(&card->tx_buffer[bufferoffsets[desc]/4],0,1536);
+ memcpy(&(card->tx_buffer[bufferoffsets[desc]/4]),skb->data,skb->len);
+
+
+ /* FIXME: The specification tells us that the length we send HAS to be a multiple of
+ 4 bytes. */
+
+ card->tx_buffer[4*desc+1] = skb->len;
+ if (desc == NUMDESCRIPTORS-1)
+ card->tx_buffer[4*desc+1] |= (1<<25); /* bit 25: last descriptor of the ring */
+
+ card->tx_buffer[4*desc+1] |= 0xF0000000;
+ /* 0xF0... means want interrupts*/
+ card->tx_skb[desc] = skb;
+
+ wmb();
+ /* This gives the descriptor to the card */
+ card->tx_buffer[4*desc] = 0x80000000;
+ trigger_transmit(card);
+ if (((int)card->tx_buffer[nextdescriptor*4])<0) { /* next descriptor is occupied... */
+ netif_stop_queue(dev);
+ }
+ card->transmit_used = nextdescriptor;
+ leave("xircom-start_xmit - sent");
+ spin_unlock_irqrestore(&card->lock,flags);
+ return 0;
+ }
+
+
+
+ /* Uh oh... no free descriptor... drop the packet */
+ netif_stop_queue(dev);
+ spin_unlock_irqrestore(&card->lock,flags);
+ trigger_transmit(card);
+
+ return -EIO;
+}
+
+
+
+
+static int xircom_open(struct net_device *dev)
+{
+ struct xircom_private *xp = netdev_priv(dev);
+ int retval;
+ enter("xircom_open");
+ printk(KERN_INFO "xircom cardbus adaptor found, registering as %s, using irq %i \n",dev->name,dev->irq);
+ retval = request_irq(dev->irq, &xircom_interrupt, SA_SHIRQ, dev->name, dev);
+ if (retval) {
+ leave("xircom_open - No IRQ");
+ return retval;
+ }
+
+ xircom_up(xp);
+ xp->open = 1;
+ leave("xircom_open");
+ return 0;
+}
+
+static int xircom_close(struct net_device *dev)
+{
+ struct xircom_private *card;
+ unsigned long flags;
+
+ enter("xircom_close");
+ card = netdev_priv(dev);
+ netif_stop_queue(dev); /* we don't want new packets */
+
+
+ spin_lock_irqsave(&card->lock,flags);
+
+ disable_all_interrupts(card);
+#if 0
+ /* We can enable this again once we send dummy packets on ifconfig ethX up */
+ deactivate_receiver(card);
+ deactivate_transmitter(card);
+#endif
+ remove_descriptors(card);
+
+ spin_unlock_irqrestore(&card->lock,flags);
+
+ card->open = 0;
+ free_irq(dev->irq,dev);
+
+ leave("xircom_close");
+
+ return 0;
+
+}
+
+
+
+static struct net_device_stats *xircom_get_stats(struct net_device *dev)
+{
+ struct xircom_private *card = netdev_priv(dev);
+ return &card->stats;
+}
+
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void xircom_poll_controller(struct net_device *dev)
+{
+ disable_irq(dev->irq);
+ xircom_interrupt(dev->irq, dev, NULL);
+ enable_irq(dev->irq);
+}
+#endif
+
+
+static void initialize_card(struct xircom_private *card)
+{
+ unsigned int val;
+ unsigned long flags;
+ enter("initialize_card");
+
+
+ spin_lock_irqsave(&card->lock, flags);
+
+ /* First: reset the card */
+ val = inl(card->io_port + CSR0);
+ val |= 0x01; /* Software reset */
+ outl(val, card->io_port + CSR0);
+
+ udelay(100); /* give the card some time to reset */
+
+ val = inl(card->io_port + CSR0);
+ val &= ~0x01; /* disable Software reset */
+ outl(val, card->io_port + CSR0);
+
+
+ val = 0; /* Value 0x00 is a safe and conservative value
+ for the PCI configuration settings */
+ outl(val, card->io_port + CSR0);
+
+
+ disable_all_interrupts(card);
+ deactivate_receiver(card);
+ deactivate_transmitter(card);
+
+ spin_unlock_irqrestore(&card->lock, flags);
+
+ leave("initialize_card");
+}
+
+/*
+trigger_transmit causes the card to check for frames to be transmitted.
+This is accomplished by writing to the CSR1 port. The documentation
+claims that the act of writing is sufficient and that the value is
+ignored; I chose zero.
+*/
+static void trigger_transmit(struct xircom_private *card)
+{
+ unsigned int val;
+ enter("trigger_transmit");
+
+ val = 0;
+ outl(val, card->io_port + CSR1);
+
+ leave("trigger_transmit");
+}
+
+/*
+trigger_receive causes the card to check for empty frames in the
+descriptor list in which packets can be received.
+This is accomplished by writing to the CSR2 port. The documentation
+claims that the act of writing is sufficient and that the value is
+ignored; I chose zero.
+*/
+static void trigger_receive(struct xircom_private *card)
+{
+ unsigned int val;
+ enter("trigger_receive");
+
+ val = 0;
+ outl(val, card->io_port + CSR2);
+
+ leave("trigger_receive");
+}
+
+/*
+setup_descriptors initializes the send and receive buffers to be valid
+descriptors and programs the addresses into the card.
+*/
+static void setup_descriptors(struct xircom_private *card)
+{
+ unsigned int val;
+ unsigned int address;
+ int i;
+ enter("setup_descriptors");
+
+
+ if (card->rx_buffer == NULL)
+ BUG();
+ if (card->tx_buffer == NULL)
+ BUG();
+
+ /* Receive descriptors */
+ memset(card->rx_buffer, 0, 128); /* clear the descriptors */
+ for (i=0;i<NUMDESCRIPTORS;i++ ) {
+
+ /* Rx Descr0: It's empty, let the card own it, no errors -> 0x80000000 */
+ card->rx_buffer[i*4 + 0] = 0x80000000;
+ /* Rx Descr1: buffer 1 is 1536 bytes, buffer 2 is 0 bytes */
+ card->rx_buffer[i*4 + 1] = 1536;
+ if (i==NUMDESCRIPTORS-1)
+ card->rx_buffer[i*4 + 1] |= (1 << 25); /* bit 25 is "last descriptor" */
+
+ /* Rx Descr2: address of the buffer
+ we store the buffer at the 2nd half of the page */
+
+ address = (unsigned long) card->rx_dma_handle;
+ card->rx_buffer[i*4 + 2] = cpu_to_le32(address + bufferoffsets[i]);
+ /* Rx Desc3: address of 2nd buffer -> 0 */
+ card->rx_buffer[i*4 + 3] = 0;
+ }
+
+ wmb();
+ /* Write the receive descriptor ring address to the card */
+ address = (unsigned long) card->rx_dma_handle;
+ val = cpu_to_le32(address);
+ outl(val, card->io_port + CSR3); /* Receive descr list address */
+
+
+ /* transmit descriptors */
+ memset(card->tx_buffer, 0, 128); /* clear the descriptors */
+
+ for (i=0;i<NUMDESCRIPTORS;i++ ) {
+ /* Tx Descr0: Empty, we own it, no errors -> 0x00000000 */
+ card->tx_buffer[i*4 + 0] = 0x00000000;
+ /* Tx Descr1: buffer 1 is 1536 bytes, buffer 2 is 0 bytes */
+ card->tx_buffer[i*4 + 1] = 1536;
+ if (i==NUMDESCRIPTORS-1)
+ card->tx_buffer[i*4 + 1] |= (1 << 25); /* bit 25 is "last descriptor" */
+
+ /* Tx Descr2: address of the buffer
+ we store the buffer at the 2nd half of the page */
+ address = (unsigned long) card->tx_dma_handle;
+ card->tx_buffer[i*4 + 2] = cpu_to_le32(address + bufferoffsets[i]);
+ /* Tx Desc3: address of 2nd buffer -> 0 */
+ card->tx_buffer[i*4 + 3] = 0;
+ }
+
+ wmb();
+ /* wite the transmit descriptor ring to the card */
+ address = (unsigned long) card->tx_dma_handle;
+ val =cpu_to_le32(address);
+ outl(val, card->io_port + CSR4); /* xmit descr list address */
+
+ leave("setup_descriptors");
+}
+
+/*
+remove_descriptors informs the card the descriptors are no longer
+valid by setting the address in the card to 0x00.
+*/
+static void remove_descriptors(struct xircom_private *card)
+{
+ unsigned int val;
+ enter("remove_descriptors");
+
+ val = 0;
+ outl(val, card->io_port + CSR3); /* Receive descriptor address */
+ outl(val, card->io_port + CSR4); /* Send descriptor address */
+
+ leave("remove_descriptors");
+}
+
+/*
+link_status_changed returns 1 if the card has indicated that
+the link status has changed. The new link status has to be read from CSR12.
+
+This function also clears the status-bit.
+*/
+static int link_status_changed(struct xircom_private *card)
+{
+ unsigned int val;
+ enter("link_status_changed");
+
+ val = inl(card->io_port + CSR5); /* Status register */
+
+ if ((val & (1 << 27)) == 0) { /* no change */
+ leave("link_status_changed - nochange");
+ return 0;
+ }
+
+ /* clear the event by writing a 1 to the bit in the
+ status register. */
+ val = (1 << 27);
+ outl(val, card->io_port + CSR5);
+
+ leave("link_status_changed - changed");
+ return 1;
+}
+
+
+/*
+transmit_active returns 1 if the transmitter on the card is
+in a non-stopped state.
+*/
+static int transmit_active(struct xircom_private *card)
+{
+ unsigned int val;
+ enter("transmit_active");
+
+ val = inl(card->io_port + CSR5); /* Status register */
+
+ if ((val & (7 << 20)) == 0) { /* transmitter disabled */
+ leave("transmit_active - inactive");
+ return 0;
+ }
+
+ leave("transmit_active - active");
+ return 1;
+}
+
+/*
+receive_active returns 1 if the receiver on the card is
+in a non-stopped state.
+*/
+static int receive_active(struct xircom_private *card)
+{
+ unsigned int val;
+ enter("receive_active");
+
+
+ val = inl(card->io_port + CSR5); /* Status register */
+
+ if ((val & (7 << 17)) == 0) { /* receiver disabled */
+ leave("receive_active - inactive");
+ return 0;
+ }
+
+ leave("receive_active - active");
+ return 1;
+}
+
+/*
+activate_receiver enables the receiver on the card.
+Before being allowed to active the receiver, the receiver
+must be completely de-activated. To achieve this,
+this code actually disables the receiver first; then it waits for the
+receiver to become inactive, then it activates the receiver and then
+it waits for the receiver to be active.
+
+must be called with the lock held and interrupts disabled.
+*/
+static void activate_receiver(struct xircom_private *card)
+{
+ unsigned int val;
+ int counter;
+ enter("activate_receiver");
+
+
+ val = inl(card->io_port + CSR6); /* Operation mode */
+
+ /* If the "active" bit is set and the receiver is already
+ active, no need to do the expensive thing */
+ if ((val&2) && (receive_active(card)))
+ return;
+
+
+ val = val & ~2; /* disable the receiver */
+ outl(val, card->io_port + CSR6);
+
+ counter = 10;
+ while (counter > 0) {
+ if (!receive_active(card))
+ break;
+ /* wait a while */
+ udelay(50);
+ counter--;
+ if (counter <= 0)
+ printk(KERN_ERR "xircom_cb: Receiver failed to deactivate\n");
+ }
+
+ /* enable the receiver */
+ val = inl(card->io_port + CSR6); /* Operation mode */
+ val = val | 2; /* enable the receiver */
+ outl(val, card->io_port + CSR6);
+
+ /* now wait for the card to activate again */
+ counter = 10;
+ while (counter > 0) {
+ if (receive_active(card))
+ break;
+ /* wait a while */
+ udelay(50);
+ counter--;
+ if (counter <= 0)
+ printk(KERN_ERR "xircom_cb: Receiver failed to re-activate\n");
+ }
+
+ leave("activate_receiver");
+}
+
+/*
+deactivate_receiver disables the receiver on the card.
+To achieve this this code disables the receiver first;
+then it waits for the receiver to become inactive.
+
+must be called with the lock held and interrupts disabled.
+*/
+static void deactivate_receiver(struct xircom_private *card)
+{
+ unsigned int val;
+ int counter;
+ enter("deactivate_receiver");
+
+ val = inl(card->io_port + CSR6); /* Operation mode */
+ val = val & ~2; /* disable the receiver */
+ outl(val, card->io_port + CSR6);
+
+ counter = 10;
+ while (counter > 0) {
+ if (!receive_active(card))
+ break;
+ /* wait a while */
+ udelay(50);
+ counter--;
+ if (counter <= 0)
+ printk(KERN_ERR "xircom_cb: Receiver failed to deactivate\n");
+ }
+
+
+ leave("deactivate_receiver");
+}
+
+
+/*
+activate_transmitter enables the transmitter on the card.
+Before being allowed to active the transmitter, the transmitter
+must be completely de-activated. To achieve this,
+this code actually disables the transmitter first; then it waits for the
+transmitter to become inactive, then it activates the transmitter and then
+it waits for the transmitter to be active again.
+
+must be called with the lock held and interrupts disabled.
+*/
+static void activate_transmitter(struct xircom_private *card)
+{
+ unsigned int val;
+ int counter;
+ enter("activate_transmitter");
+
+
+ val = inl(card->io_port + CSR6); /* Operation mode */
+
+ /* If the "active" bit is set and the receiver is already
+ active, no need to do the expensive thing */
+ if ((val&(1<<13)) && (transmit_active(card)))
+ return;
+
+ val = val & ~(1 << 13); /* disable the transmitter */
+ outl(val, card->io_port + CSR6);
+
+ counter = 10;
+ while (counter > 0) {
+ if (!transmit_active(card))
+ break;
+ /* wait a while */
+ udelay(50);
+ counter--;
+ if (counter <= 0)
+ printk(KERN_ERR "xircom_cb: Transmitter failed to deactivate\n");
+ }
+
+ /* enable the transmitter */
+ val = inl(card->io_port + CSR6); /* Operation mode */
+ val = val | (1 << 13); /* enable the transmitter */
+ outl(val, card->io_port + CSR6);
+
+ /* now wait for the card to activate again */
+ counter = 10;
+ while (counter > 0) {
+ if (transmit_active(card))
+ break;
+ /* wait a while */
+ udelay(50);
+ counter--;
+ if (counter <= 0)
+ printk(KERN_ERR "xircom_cb: Transmitter failed to re-activate\n");
+ }
+
+ leave("activate_transmitter");
+}
+
+/*
+deactivate_transmitter disables the transmitter on the card.
+To achieve this this code disables the transmitter first;
+then it waits for the transmitter to become inactive.
+
+must be called with the lock held and interrupts disabled.
+*/
+static void deactivate_transmitter(struct xircom_private *card)
+{
+ unsigned int val;
+ int counter;
+ enter("deactivate_transmitter");
+
+ val = inl(card->io_port + CSR6); /* Operation mode */
+ val = val & ~2; /* disable the transmitter */
+ outl(val, card->io_port + CSR6);
+
+ counter = 20;
+ while (counter > 0) {
+ if (!transmit_active(card))
+ break;
+ /* wait a while */
+ udelay(50);
+ counter--;
+ if (counter <= 0)
+ printk(KERN_ERR "xircom_cb: Transmitter failed to deactivate\n");
+ }
+
+
+ leave("deactivate_transmitter");
+}
+
+
+/*
+enable_transmit_interrupt enables the transmit interrupt
+
+must be called with the lock held and interrupts disabled.
+*/
+static void enable_transmit_interrupt(struct xircom_private *card)
+{
+ unsigned int val;
+ enter("enable_transmit_interrupt");
+
+ val = inl(card->io_port + CSR7); /* Interrupt enable register */
+ val |= 1; /* enable the transmit interrupt */
+ outl(val, card->io_port + CSR7);
+
+ leave("enable_transmit_interrupt");
+}
+
+
+/*
+enable_receive_interrupt enables the receive interrupt
+
+must be called with the lock held and interrupts disabled.
+*/
+static void enable_receive_interrupt(struct xircom_private *card)
+{
+ unsigned int val;
+ enter("enable_receive_interrupt");
+
+ val = inl(card->io_port + CSR7); /* Interrupt enable register */
+ val = val | (1 << 6); /* enable the receive interrupt */
+ outl(val, card->io_port + CSR7);
+
+ leave("enable_receive_interrupt");
+}
+
+/*
+enable_link_interrupt enables the link status change interrupt
+
+must be called with the lock held and interrupts disabled.
+*/
+static void enable_link_interrupt(struct xircom_private *card)
+{
+ unsigned int val;
+ enter("enable_link_interrupt");
+
+ val = inl(card->io_port + CSR7); /* Interrupt enable register */
+ val = val | (1 << 27); /* enable the link status chage interrupt */
+ outl(val, card->io_port + CSR7);
+
+ leave("enable_link_interrupt");
+}
+
+
+
+/*
+disable_all_interrupts disables all interrupts
+
+must be called with the lock held and interrupts disabled.
+*/
+static void disable_all_interrupts(struct xircom_private *card)
+{
+ unsigned int val;
+ enter("enable_all_interrupts");
+
+ val = 0; /* disable all interrupts */
+ outl(val, card->io_port + CSR7);
+
+ leave("disable_all_interrupts");
+}
+
+/*
+enable_common_interrupts enables several weird interrupts
+
+must be called with the lock held and interrupts disabled.
+*/
+static void enable_common_interrupts(struct xircom_private *card)
+{
+ unsigned int val;
+ enter("enable_link_interrupt");
+
+ val = inl(card->io_port + CSR7); /* Interrupt enable register */
+ val |= (1<<16); /* Normal Interrupt Summary */
+ val |= (1<<15); /* Abnormal Interrupt Summary */
+ val |= (1<<13); /* Fatal bus error */
+ val |= (1<<8); /* Receive Process Stopped */
+ val |= (1<<7); /* Receive Buffer Unavailable */
+ val |= (1<<5); /* Transmit Underflow */
+ val |= (1<<2); /* Transmit Buffer Unavailable */
+ val |= (1<<1); /* Transmit Process Stopped */
+ outl(val, card->io_port + CSR7);
+
+ leave("enable_link_interrupt");
+}
+
+/*
+enable_promisc starts promisc mode
+
+must be called with the lock held and interrupts disabled.
+*/
+static int enable_promisc(struct xircom_private *card)
+{
+ unsigned int val;
+ enter("enable_promisc");
+
+ val = inl(card->io_port + CSR6);
+ val = val | (1 << 6);
+ outl(val, card->io_port + CSR6);
+
+ leave("enable_promisc");
+ return 1;
+}
+
+
+
+
+/*
+link_status() checks the the links status and will return 0 for no link, 10 for 10mbit link and 100 for.. guess what.
+
+Must be called in locked state with interrupts disabled
+*/
+static int link_status(struct xircom_private *card)
+{
+ unsigned int val;
+ enter("link_status");
+
+ val = inb(card->io_port + CSR12);
+
+ if (!(val&(1<<2))) /* bit 2 is 0 for 10mbit link, 1 for not an 10mbit link */
+ return 10;
+ if (!(val&(1<<1))) /* bit 1 is 0 for 100mbit link, 1 for not an 100mbit link */
+ return 100;
+
+ /* If we get here -> no link at all */
+
+ leave("link_status");
+ return 0;
+}
+
+
+
+
+
+/*
+ read_mac_address() reads the MAC address from the NIC and stores it in the "dev" structure.
+
+ This function will take the spinlock itself and can, as a result, not be called with the lock helt.
+ */
+static void read_mac_address(struct xircom_private *card)
+{
+ unsigned char j, tuple, link, data_id, data_count;
+ unsigned long flags;
+ int i;
+
+ enter("read_mac_address");
+
+ spin_lock_irqsave(&card->lock, flags);
+
+ outl(1 << 12, card->io_port + CSR9); /* enable boot rom access */
+ for (i = 0x100; i < 0x1f7; i += link + 2) {
+ outl(i, card->io_port + CSR10);
+ tuple = inl(card->io_port + CSR9) & 0xff;
+ outl(i + 1, card->io_port + CSR10);
+ link = inl(card->io_port + CSR9) & 0xff;
+ outl(i + 2, card->io_port + CSR10);
+ data_id = inl(card->io_port + CSR9) & 0xff;
+ outl(i + 3, card->io_port + CSR10);
+ data_count = inl(card->io_port + CSR9) & 0xff;
+ if ((tuple == 0x22) && (data_id == 0x04) && (data_count == 0x06)) {
+ /*
+ * This is it. We have the data we want.
+ */
+ for (j = 0; j < 6; j++) {
+ outl(i + j + 4, card->io_port + CSR10);
+ card->dev->dev_addr[j] = inl(card->io_port + CSR9) & 0xff;
+ }
+ break;
+ } else if (link == 0) {
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&card->lock, flags);
+#ifdef DEBUG
+ for (i = 0; i < 6; i++)
+ printk("%c%2.2X", i ? ':' : ' ', card->dev->dev_addr[i]);
+ printk("\n");
+#endif
+ leave("read_mac_address");
+}
+
+
+/*
+ transceiver_voodoo() enables the external UTP plug thingy.
+ it's called voodoo as I stole this code and cannot cross-reference
+ it with the specification.
+ */
+static void transceiver_voodoo(struct xircom_private *card)
+{
+ unsigned long flags;
+
+ enter("transceiver_voodoo");
+
+ /* disable all powermanagement */
+ pci_write_config_dword(card->pdev, PCI_POWERMGMT, 0x0000);
+
+ setup_descriptors(card);
+
+ spin_lock_irqsave(&card->lock, flags);
+
+ outl(0x0008, card->io_port + CSR15);
+ udelay(25);
+ outl(0xa8050000, card->io_port + CSR15);
+ udelay(25);
+ outl(0xa00f0000, card->io_port + CSR15);
+ udelay(25);
+
+ spin_unlock_irqrestore(&card->lock, flags);
+
+ netif_start_queue(card->dev);
+ leave("transceiver_voodoo");
+}
+
+
+static void xircom_up(struct xircom_private *card)
+{
+ unsigned long flags;
+ int i;
+
+ enter("xircom_up");
+
+ /* disable all powermanagement */
+ pci_write_config_dword(card->pdev, PCI_POWERMGMT, 0x0000);
+
+ setup_descriptors(card);
+
+ spin_lock_irqsave(&card->lock, flags);
+
+
+ enable_link_interrupt(card);
+ enable_transmit_interrupt(card);
+ enable_receive_interrupt(card);
+ enable_common_interrupts(card);
+ enable_promisc(card);
+
+ /* The card can have received packets already, read them away now */
+ for (i=0;i<NUMDESCRIPTORS;i++)
+ investigate_read_descriptor(card->dev,card,i,bufferoffsets[i]);
+
+
+ spin_unlock_irqrestore(&card->lock, flags);
+ trigger_receive(card);
+ trigger_transmit(card);
+ netif_start_queue(card->dev);
+ leave("xircom_up");
+}
+
+/* Bufferoffset is in BYTES */
+static void investigate_read_descriptor(struct net_device *dev,struct xircom_private *card, int descnr, unsigned int bufferoffset)
+{
+ int status;
+
+ enter("investigate_read_descriptor");
+ status = card->rx_buffer[4*descnr];
+
+ if ((status > 0)) { /* packet received */
+
+ /* TODO: discard error packets */
+
+ short pkt_len = ((status >> 16) & 0x7ff) - 4; /* minus 4, we don't want the CRC */
+ struct sk_buff *skb;
+
+ if (pkt_len > 1518) {
+ printk(KERN_ERR "xircom_cb: Packet length %i is bogus \n",pkt_len);
+ pkt_len = 1518;
+ }
+
+ skb = dev_alloc_skb(pkt_len + 2);
+ if (skb == NULL) {
+ card->stats.rx_dropped++;
+ goto out;
+ }
+ skb->dev = dev;
+ skb_reserve(skb, 2);
+ eth_copy_and_sum(skb, (unsigned char*)&card->rx_buffer[bufferoffset / 4], pkt_len, 0);
+ skb_put(skb, pkt_len);
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_rx(skb);
+ dev->last_rx = jiffies;
+ card->stats.rx_packets++;
+ card->stats.rx_bytes += pkt_len;
+
+ out:
+ /* give the buffer back to the card */
+ card->rx_buffer[4*descnr] = 0x80000000;
+ trigger_receive(card);
+ }
+
+ leave("investigate_read_descriptor");
+
+}
+
+
+/* Bufferoffset is in BYTES */
+static void investigate_write_descriptor(struct net_device *dev, struct xircom_private *card, int descnr, unsigned int bufferoffset)
+{
+ int status;
+
+ enter("investigate_write_descriptor");
+
+ status = card->tx_buffer[4*descnr];
+#if 0
+ if (status & 0x8000) { /* Major error */
+ printk(KERN_ERR "Major transmit error status %x \n", status);
+ card->tx_buffer[4*descnr] = 0;
+ netif_wake_queue (dev);
+ }
+#endif
+ if (status > 0) { /* bit 31 is 0 when done */
+ if (card->tx_skb[descnr]!=NULL) {
+ card->stats.tx_bytes += card->tx_skb[descnr]->len;
+ dev_kfree_skb_irq(card->tx_skb[descnr]);
+ }
+ card->tx_skb[descnr] = NULL;
+ /* Bit 8 in the status field is 1 if there was a collision */
+ if (status&(1<<8))
+ card->stats.collisions++;
+ card->tx_buffer[4*descnr] = 0; /* descriptor is free again */
+ netif_wake_queue (dev);
+ card->stats.tx_packets++;
+ }
+
+ leave("investigate_write_descriptor");
+
+}
+
+
+static int __init xircom_init(void)
+{
+ pci_register_driver(&xircom_ops);
+ return 0;
+}
+
+static void __exit xircom_exit(void)
+{
+ pci_unregister_driver(&xircom_ops);
+}
+
+module_init(xircom_init)
+module_exit(xircom_exit)
+
diff --git a/drivers/net/tulip/xircom_tulip_cb.c b/drivers/net/tulip/xircom_tulip_cb.c
new file mode 100644
index 000000000000..32ccb26890c3
--- /dev/null
+++ b/drivers/net/tulip/xircom_tulip_cb.c
@@ -0,0 +1,1748 @@
+/* xircom_tulip_cb.c: A Xircom CBE-100 ethernet driver for Linux. */
+/*
+ Written/copyright 1994-1999 by Donald Becker.
+
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ The author may be reached as becker@scyld.com, or C/O
+ Scyld Computing Corporation
+ 410 Severn Ave., Suite 210
+ Annapolis MD 21403
+
+ -----------------------------------------------------------
+
+ Linux kernel-specific changes:
+
+ LK1.0 (Ion Badulescu)
+ - Major cleanup
+ - Use 2.4 PCI API
+ - Support ethtool
+ - Rewrite perfect filter/hash code
+ - Use interrupts for media changes
+
+ LK1.1 (Ion Badulescu)
+ - Disallow negotiation of unsupported full-duplex modes
+*/
+
+#define DRV_NAME "xircom_tulip_cb"
+#define DRV_VERSION "0.91+LK1.1"
+#define DRV_RELDATE "October 11, 2001"
+
+#define CARDBUS 1
+
+/* A few user-configurable values. */
+
+#define xircom_debug debug
+#ifdef XIRCOM_DEBUG
+static int xircom_debug = XIRCOM_DEBUG;
+#else
+static int xircom_debug = 1;
+#endif
+
+/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
+static int max_interrupt_work = 25;
+
+#define MAX_UNITS 4
+/* Used to pass the full-duplex flag, etc. */
+static int full_duplex[MAX_UNITS];
+static int options[MAX_UNITS];
+static int mtu[MAX_UNITS]; /* Jumbo MTU for interfaces. */
+
+/* Keep the ring sizes a power of two for efficiency.
+ Making the Tx ring too large decreases the effectiveness of channel
+ bonding and packet priority.
+ There are no ill effects from too-large receive rings. */
+#define TX_RING_SIZE 16
+#define RX_RING_SIZE 32
+
+/* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */
+#ifdef __alpha__
+static int rx_copybreak = 1518;
+#else
+static int rx_copybreak = 100;
+#endif
+
+/*
+ Set the bus performance register.
+ Typical: Set 16 longword cache alignment, no burst limit.
+ Cache alignment bits 15:14 Burst length 13:8
+ 0000 No alignment 0x00000000 unlimited 0800 8 longwords
+ 4000 8 longwords 0100 1 longword 1000 16 longwords
+ 8000 16 longwords 0200 2 longwords 2000 32 longwords
+ C000 32 longwords 0400 4 longwords
+ Warning: many older 486 systems are broken and require setting 0x00A04800
+ 8 longword cache alignment, 8 longword burst.
+ ToDo: Non-Intel setting could be better.
+*/
+
+#if defined(__alpha__) || defined(__ia64__) || defined(__x86_64__)
+static int csr0 = 0x01A00000 | 0xE000;
+#elif defined(__powerpc__)
+static int csr0 = 0x01B00000 | 0x8000;
+#elif defined(__sparc__)
+static int csr0 = 0x01B00080 | 0x8000;
+#elif defined(__i386__)
+static int csr0 = 0x01A00000 | 0x8000;
+#else
+#warning Processor architecture undefined!
+static int csr0 = 0x00A00000 | 0x4800;
+#endif
+
+/* Operational parameters that usually are not changed. */
+/* Time in jiffies before concluding the transmitter is hung. */
+#define TX_TIMEOUT (4 * HZ)
+#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
+#define PKT_SETUP_SZ 192 /* Size of the setup frame */
+
+/* PCI registers */
+#define PCI_POWERMGMT 0x40
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/crc32.h>
+
+#include <asm/io.h>
+#include <asm/processor.h> /* Processor type for cache alignment. */
+#include <asm/uaccess.h>
+
+
+/* These identify the driver base version and may not be removed. */
+static char version[] __devinitdata =
+KERN_INFO DRV_NAME ".c derived from tulip.c:v0.91 4/14/99 becker@scyld.com\n"
+KERN_INFO " unofficial 2.4.x kernel port, version " DRV_VERSION ", " DRV_RELDATE "\n";
+
+MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
+MODULE_DESCRIPTION("Xircom CBE-100 ethernet driver");
+MODULE_LICENSE("GPL v2");
+MODULE_VERSION(DRV_VERSION);
+
+module_param(debug, int, 0);
+module_param(max_interrupt_work, int, 0);
+module_param(rx_copybreak, int, 0);
+module_param(csr0, int, 0);
+
+module_param_array(options, int, NULL, 0);
+module_param_array(full_duplex, int, NULL, 0);
+
+#define RUN_AT(x) (jiffies + (x))
+
+/*
+ Theory of Operation
+
+I. Board Compatibility
+
+This device driver was forked from the driver for the DECchip "Tulip",
+Digital's single-chip ethernet controllers for PCI. It supports Xircom's
+almost-Tulip-compatible CBE-100 CardBus adapters.
+
+II. Board-specific settings
+
+PCI bus devices are configured by the system at boot time, so no jumpers
+need to be set on the board. The system BIOS preferably should assign the
+PCI INTA signal to an otherwise unused system IRQ line.
+
+III. Driver operation
+
+IIIa. Ring buffers
+
+The Xircom can use either ring buffers or lists of Tx and Rx descriptors.
+This driver uses statically allocated rings of Rx and Tx descriptors, set at
+compile time by RX/TX_RING_SIZE. This version of the driver allocates skbuffs
+for the Rx ring buffers at open() time and passes the skb->data field to the
+Xircom as receive data buffers. When an incoming frame is less than
+RX_COPYBREAK bytes long, a fresh skbuff is allocated and the frame is
+copied to the new skbuff. When the incoming frame is larger, the skbuff is
+passed directly up the protocol stack and replaced by a newly allocated
+skbuff.
+
+The RX_COPYBREAK value is chosen to trade-off the memory wasted by
+using a full-sized skbuff for small frames vs. the copying costs of larger
+frames. For small frames the copying cost is negligible (esp. considering
+that we are pre-loading the cache with immediately useful header
+information). For large frames the copying cost is non-trivial, and the
+larger copy might flush the cache of useful data. A subtle aspect of this
+choice is that the Xircom only receives into longword aligned buffers, thus
+the IP header at offset 14 isn't longword aligned for further processing.
+Copied frames are put into the new skbuff at an offset of "+2", thus copying
+has the beneficial effect of aligning the IP header and preloading the
+cache.
+
+IIIC. Synchronization
+The driver runs as two independent, single-threaded flows of control. One
+is the send-packet routine, which enforces single-threaded use by the
+dev->tbusy flag. The other thread is the interrupt handler, which is single
+threaded by the hardware and other software.
+
+The send packet thread has partial control over the Tx ring and 'dev->tbusy'
+flag. It sets the tbusy flag whenever it's queuing a Tx packet. If the next
+queue slot is empty, it clears the tbusy flag when finished otherwise it sets
+the 'tp->tx_full' flag.
+
+The interrupt handler has exclusive control over the Rx ring and records stats
+from the Tx ring. (The Tx-done interrupt can't be selectively turned off, so
+we can't avoid the interrupt overhead by having the Tx routine reap the Tx
+stats.) After reaping the stats, it marks the queue entry as empty by setting
+the 'base' to zero. Iff the 'tp->tx_full' flag is set, it clears both the
+tx_full and tbusy flags.
+
+IV. Notes
+
+IVb. References
+
+http://cesdis.gsfc.nasa.gov/linux/misc/NWay.html
+http://www.digital.com (search for current 21*4* datasheets and "21X4 SROM")
+http://www.national.com/pf/DP/DP83840A.html
+
+IVc. Errata
+
+*/
+
+/* A full-duplex map for media types. */
+enum MediaIs {
+ MediaIsFD = 1, MediaAlwaysFD=2, MediaIsMII=4, MediaIsFx=8,
+ MediaIs100=16};
+static const char media_cap[] =
+{0,0,0,16, 3,19,16,24, 27,4,7,5, 0,20,23,20 };
+
+/* Offsets to the Command and Status Registers, "CSRs". All accesses
+ must be longword instructions and quadword aligned. */
+enum xircom_offsets {
+ CSR0=0, CSR1=0x08, CSR2=0x10, CSR3=0x18, CSR4=0x20, CSR5=0x28,
+ CSR6=0x30, CSR7=0x38, CSR8=0x40, CSR9=0x48, CSR10=0x50, CSR11=0x58,
+ CSR12=0x60, CSR13=0x68, CSR14=0x70, CSR15=0x78, CSR16=0x04, };
+
+/* The bits in the CSR5 status registers, mostly interrupt sources. */
+enum status_bits {
+ LinkChange=0x08000000,
+ NormalIntr=0x10000, NormalIntrMask=0x00014045,
+ AbnormalIntr=0x8000, AbnormalIntrMask=0x0a00a5a2,
+ ReservedIntrMask=0xe0001a18,
+ EarlyRxIntr=0x4000, BusErrorIntr=0x2000,
+ EarlyTxIntr=0x400, RxDied=0x100, RxNoBuf=0x80, RxIntr=0x40,
+ TxFIFOUnderflow=0x20, TxNoBuf=0x04, TxDied=0x02, TxIntr=0x01,
+};
+
+enum csr0_control_bits {
+ EnableMWI=0x01000000, EnableMRL=0x00800000,
+ EnableMRM=0x00200000, EqualBusPrio=0x02,
+ SoftwareReset=0x01,
+};
+
+enum csr6_control_bits {
+ ReceiveAllBit=0x40000000, AllMultiBit=0x80, PromiscBit=0x40,
+ HashFilterBit=0x01, FullDuplexBit=0x0200,
+ TxThresh10=0x400000, TxStoreForw=0x200000,
+ TxThreshMask=0xc000, TxThreshShift=14,
+ EnableTx=0x2000, EnableRx=0x02,
+ ReservedZeroMask=0x8d930134, ReservedOneMask=0x320c0000,
+ EnableTxRx=(EnableTx | EnableRx),
+};
+
+
+enum tbl_flag {
+ HAS_MII=1, HAS_ACPI=2,
+};
+static struct xircom_chip_table {
+ char *chip_name;
+ int valid_intrs; /* CSR7 interrupt enable settings */
+ int flags;
+} xircom_tbl[] = {
+ { "Xircom Cardbus Adapter",
+ LinkChange | NormalIntr | AbnormalIntr | BusErrorIntr |
+ RxDied | RxNoBuf | RxIntr | TxFIFOUnderflow | TxNoBuf | TxDied | TxIntr,
+ HAS_MII | HAS_ACPI, },
+ { NULL, },
+};
+/* This matches the table above. */
+enum chips {
+ X3201_3,
+};
+
+
+/* The Xircom Rx and Tx buffer descriptors. */
+struct xircom_rx_desc {
+ s32 status;
+ s32 length;
+ u32 buffer1, buffer2;
+};
+
+struct xircom_tx_desc {
+ s32 status;
+ s32 length;
+ u32 buffer1, buffer2; /* We use only buffer 1. */
+};
+
+enum tx_desc0_status_bits {
+ Tx0DescOwned=0x80000000, Tx0DescError=0x8000, Tx0NoCarrier=0x0800,
+ Tx0LateColl=0x0200, Tx0ManyColl=0x0100, Tx0Underflow=0x02,
+};
+enum tx_desc1_status_bits {
+ Tx1ComplIntr=0x80000000, Tx1LastSeg=0x40000000, Tx1FirstSeg=0x20000000,
+ Tx1SetupPkt=0x08000000, Tx1DisableCRC=0x04000000, Tx1RingWrap=0x02000000,
+ Tx1ChainDesc=0x01000000, Tx1NoPad=0x800000, Tx1HashSetup=0x400000,
+ Tx1WholePkt=(Tx1FirstSeg | Tx1LastSeg),
+};
+enum rx_desc0_status_bits {
+ Rx0DescOwned=0x80000000, Rx0DescError=0x8000, Rx0NoSpace=0x4000,
+ Rx0Runt=0x0800, Rx0McastPkt=0x0400, Rx0FirstSeg=0x0200, Rx0LastSeg=0x0100,
+ Rx0HugeFrame=0x80, Rx0CRCError=0x02,
+ Rx0WholePkt=(Rx0FirstSeg | Rx0LastSeg),
+};
+enum rx_desc1_status_bits {
+ Rx1RingWrap=0x02000000, Rx1ChainDesc=0x01000000,
+};
+
+struct xircom_private {
+ struct xircom_rx_desc rx_ring[RX_RING_SIZE];
+ struct xircom_tx_desc tx_ring[TX_RING_SIZE];
+ /* The saved address of a sent-in-place packet/buffer, for skfree(). */
+ struct sk_buff* tx_skbuff[TX_RING_SIZE];
+#ifdef CARDBUS
+ /* The X3201-3 requires 4-byte aligned tx bufs */
+ struct sk_buff* tx_aligned_skbuff[TX_RING_SIZE];
+#endif
+ /* The addresses of receive-in-place skbuffs. */
+ struct sk_buff* rx_skbuff[RX_RING_SIZE];
+ u16 setup_frame[PKT_SETUP_SZ / sizeof(u16)]; /* Pseudo-Tx frame to init address table. */
+ int chip_id;
+ struct net_device_stats stats;
+ unsigned int cur_rx, cur_tx; /* The next free ring entry */
+ unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */
+ unsigned int tx_full:1; /* The Tx queue is full. */
+ unsigned int speed100:1;
+ unsigned int full_duplex:1; /* Full-duplex operation requested. */
+ unsigned int autoneg:1;
+ unsigned int default_port:4; /* Last dev->if_port value. */
+ unsigned int open:1;
+ unsigned int csr0; /* CSR0 setting. */
+ unsigned int csr6; /* Current CSR6 control settings. */
+ u16 to_advertise; /* NWay capabilities advertised. */
+ u16 advertising[4];
+ signed char phys[4], mii_cnt; /* MII device addresses. */
+ int saved_if_port;
+ struct pci_dev *pdev;
+ spinlock_t lock;
+};
+
+static int mdio_read(struct net_device *dev, int phy_id, int location);
+static void mdio_write(struct net_device *dev, int phy_id, int location, int value);
+static void xircom_up(struct net_device *dev);
+static void xircom_down(struct net_device *dev);
+static int xircom_open(struct net_device *dev);
+static void xircom_tx_timeout(struct net_device *dev);
+static void xircom_init_ring(struct net_device *dev);
+static int xircom_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static int xircom_rx(struct net_device *dev);
+static void xircom_media_change(struct net_device *dev);
+static irqreturn_t xircom_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
+static int xircom_close(struct net_device *dev);
+static struct net_device_stats *xircom_get_stats(struct net_device *dev);
+static int xircom_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
+static void set_rx_mode(struct net_device *dev);
+static void check_duplex(struct net_device *dev);
+static struct ethtool_ops ops;
+
+
+/* The Xircom cards are picky about when certain bits in CSR6 can be
+ manipulated. Keith Owens <kaos@ocs.com.au>. */
+static void outl_CSR6(u32 newcsr6, long ioaddr)
+{
+ const int strict_bits =
+ TxThresh10 | TxStoreForw | TxThreshMask | EnableTxRx | FullDuplexBit;
+ int csr5, csr5_22_20, csr5_19_17, currcsr6, attempts = 200;
+ unsigned long flags;
+ save_flags(flags);
+ cli();
+ /* mask out the reserved bits that always read 0 on the Xircom cards */
+ newcsr6 &= ~ReservedZeroMask;
+ /* or in the reserved bits that always read 1 */
+ newcsr6 |= ReservedOneMask;
+ currcsr6 = inl(ioaddr + CSR6);
+ if (((newcsr6 & strict_bits) == (currcsr6 & strict_bits)) ||
+ ((currcsr6 & ~EnableTxRx) == 0)) {
+ outl(newcsr6, ioaddr + CSR6); /* safe */
+ restore_flags(flags);
+ return;
+ }
+ /* make sure the transmitter and receiver are stopped first */
+ currcsr6 &= ~EnableTxRx;
+ while (1) {
+ csr5 = inl(ioaddr + CSR5);
+ if (csr5 == 0xffffffff)
+ break; /* cannot read csr5, card removed? */
+ csr5_22_20 = csr5 & 0x700000;
+ csr5_19_17 = csr5 & 0x0e0000;
+ if ((csr5_22_20 == 0 || csr5_22_20 == 0x600000) &&
+ (csr5_19_17 == 0 || csr5_19_17 == 0x80000 || csr5_19_17 == 0xc0000))
+ break; /* both are stopped or suspended */
+ if (!--attempts) {
+ printk(KERN_INFO DRV_NAME ": outl_CSR6 too many attempts,"
+ "csr5=0x%08x\n", csr5);
+ outl(newcsr6, ioaddr + CSR6); /* unsafe but do it anyway */
+ restore_flags(flags);
+ return;
+ }
+ outl(currcsr6, ioaddr + CSR6);
+ udelay(1);
+ }
+ /* now it is safe to change csr6 */
+ outl(newcsr6, ioaddr + CSR6);
+ restore_flags(flags);
+}
+
+
+static void __devinit read_mac_address(struct net_device *dev)
+{
+ long ioaddr = dev->base_addr;
+ int i, j;
+ unsigned char tuple, link, data_id, data_count;
+
+ /* Xircom has its address stored in the CIS;
+ * we access it through the boot rom interface for now
+ * this might not work, as the CIS is not parsed but I
+ * (danilo) use the offset I found on my card's CIS !!!
+ *
+ * Doug Ledford: I changed this routine around so that it
+ * walks the CIS memory space, parsing the config items, and
+ * finds the proper lan_node_id tuple and uses the data
+ * stored there.
+ */
+ outl(1 << 12, ioaddr + CSR9); /* enable boot rom access */
+ for (i = 0x100; i < 0x1f7; i += link+2) {
+ outl(i, ioaddr + CSR10);
+ tuple = inl(ioaddr + CSR9) & 0xff;
+ outl(i + 1, ioaddr + CSR10);
+ link = inl(ioaddr + CSR9) & 0xff;
+ outl(i + 2, ioaddr + CSR10);
+ data_id = inl(ioaddr + CSR9) & 0xff;
+ outl(i + 3, ioaddr + CSR10);
+ data_count = inl(ioaddr + CSR9) & 0xff;
+ if ( (tuple == 0x22) &&
+ (data_id == 0x04) && (data_count == 0x06) ) {
+ /*
+ * This is it. We have the data we want.
+ */
+ for (j = 0; j < 6; j++) {
+ outl(i + j + 4, ioaddr + CSR10);
+ dev->dev_addr[j] = inl(ioaddr + CSR9) & 0xff;
+ }
+ break;
+ } else if (link == 0) {
+ break;
+ }
+ }
+}
+
+
+/*
+ * locate the MII interfaces and initialize them.
+ * we disable full-duplex modes here,
+ * because we don't know how to handle them.
+ */
+static void find_mii_transceivers(struct net_device *dev)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ int phy, phy_idx;
+
+ if (media_cap[tp->default_port] & MediaIsMII) {
+ u16 media2advert[] = { 0x20, 0x40, 0x03e0, 0x60, 0x80, 0x100, 0x200 };
+ tp->to_advertise = media2advert[tp->default_port - 9];
+ } else
+ tp->to_advertise =
+ /*ADVERTISE_100BASE4 | ADVERTISE_100FULL |*/ ADVERTISE_100HALF |
+ /*ADVERTISE_10FULL |*/ ADVERTISE_10HALF | ADVERTISE_CSMA;
+
+ /* Find the connected MII xcvrs.
+ Doing this in open() would allow detecting external xcvrs later,
+ but takes much time. */
+ for (phy = 0, phy_idx = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) {
+ int mii_status = mdio_read(dev, phy, MII_BMSR);
+ if ((mii_status & (BMSR_100BASE4 | BMSR_100HALF | BMSR_10HALF)) == BMSR_100BASE4 ||
+ ((mii_status & BMSR_100BASE4) == 0 &&
+ (mii_status & (BMSR_100FULL | BMSR_100HALF | BMSR_10FULL | BMSR_10HALF)) != 0)) {
+ int mii_reg0 = mdio_read(dev, phy, MII_BMCR);
+ int mii_advert = mdio_read(dev, phy, MII_ADVERTISE);
+ int reg4 = ((mii_status >> 6) & tp->to_advertise) | ADVERTISE_CSMA;
+ tp->phys[phy_idx] = phy;
+ tp->advertising[phy_idx++] = reg4;
+ printk(KERN_INFO "%s: MII transceiver #%d "
+ "config %4.4x status %4.4x advertising %4.4x.\n",
+ dev->name, phy, mii_reg0, mii_status, mii_advert);
+ }
+ }
+ tp->mii_cnt = phy_idx;
+ if (phy_idx == 0) {
+ printk(KERN_INFO "%s: ***WARNING***: No MII transceiver found!\n",
+ dev->name);
+ tp->phys[0] = 0;
+ }
+}
+
+
+/*
+ * To quote Arjan van de Ven:
+ * transceiver_voodoo() enables the external UTP plug thingy.
+ * it's called voodoo as I stole this code and cannot cross-reference
+ * it with the specification.
+ * Actually it seems to go like this:
+ * - GPIO2 enables the MII itself so we can talk to it. The MII gets reset
+ * so any prior MII settings are lost.
+ * - GPIO0 enables the TP port so the MII can talk to the network.
+ * - a software reset will reset both GPIO pins.
+ * I also moved the software reset here, because doing it in xircom_up()
+ * required enabling the GPIO pins each time, which reset the MII each time.
+ * Thus we couldn't control the MII -- which sucks because we don't know
+ * how to handle full-duplex modes so we *must* disable them.
+ */
+static void transceiver_voodoo(struct net_device *dev)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+
+ /* Reset the chip, holding bit 0 set at least 50 PCI cycles. */
+ outl(SoftwareReset, ioaddr + CSR0);
+ udelay(2);
+
+ /* Deassert reset. */
+ outl(tp->csr0, ioaddr + CSR0);
+
+ /* Reset the xcvr interface and turn on heartbeat. */
+ outl(0x0008, ioaddr + CSR15);
+ udelay(5); /* The delays are Xircom-recommended to give the
+ * chipset time to reset the actual hardware
+ * on the PCMCIA card
+ */
+ outl(0xa8050000, ioaddr + CSR15);
+ udelay(5);
+ outl(0xa00f0000, ioaddr + CSR15);
+ udelay(5);
+
+ outl_CSR6(0, ioaddr);
+ //outl_CSR6(FullDuplexBit, ioaddr);
+}
+
+
+static int __devinit xircom_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct net_device *dev;
+ struct xircom_private *tp;
+ static int board_idx = -1;
+ int chip_idx = id->driver_data;
+ long ioaddr;
+ int i;
+ u8 chip_rev;
+
+/* when built into the kernel, we only print version if device is found */
+#ifndef MODULE
+ static int printed_version;
+ if (!printed_version++)
+ printk(version);
+#endif
+
+ //printk(KERN_INFO "xircom_init_one(%s)\n", pci_name(pdev));
+
+ board_idx++;
+
+ if (pci_enable_device(pdev))
+ return -ENODEV;
+
+ pci_set_master(pdev);
+
+ ioaddr = pci_resource_start(pdev, 0);
+ dev = alloc_etherdev(sizeof(*tp));
+ if (!dev) {
+ printk (KERN_ERR DRV_NAME "%d: cannot alloc etherdev, aborting\n", board_idx);
+ return -ENOMEM;
+ }
+ SET_MODULE_OWNER(dev);
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+ dev->base_addr = ioaddr;
+ dev->irq = pdev->irq;
+
+ if (pci_request_regions(pdev, dev->name)) {
+ printk (KERN_ERR DRV_NAME " %d: cannot reserve PCI resources, aborting\n", board_idx);
+ goto err_out_free_netdev;
+ }
+
+ /* Bring the chip out of sleep mode.
+ Caution: Snooze mode does not work with some boards! */
+ if (xircom_tbl[chip_idx].flags & HAS_ACPI)
+ pci_write_config_dword(pdev, PCI_POWERMGMT, 0);
+
+ /* Stop the chip's Tx and Rx processes. */
+ outl_CSR6(inl(ioaddr + CSR6) & ~EnableTxRx, ioaddr);
+ /* Clear the missed-packet counter. */
+ (volatile int)inl(ioaddr + CSR8);
+
+ tp = netdev_priv(dev);
+
+ spin_lock_init(&tp->lock);
+ tp->pdev = pdev;
+ tp->chip_id = chip_idx;
+ /* BugFixes: The 21143-TD hangs with PCI Write-and-Invalidate cycles. */
+ /* XXX: is this necessary for Xircom? */
+ tp->csr0 = csr0 & ~EnableMWI;
+
+ pci_set_drvdata(pdev, dev);
+
+ /* The lower four bits are the media type. */
+ if (board_idx >= 0 && board_idx < MAX_UNITS) {
+ tp->default_port = options[board_idx] & 15;
+ if ((options[board_idx] & 0x90) || full_duplex[board_idx] > 0)
+ tp->full_duplex = 1;
+ if (mtu[board_idx] > 0)
+ dev->mtu = mtu[board_idx];
+ }
+ if (dev->mem_start)
+ tp->default_port = dev->mem_start;
+ if (tp->default_port) {
+ if (media_cap[tp->default_port] & MediaAlwaysFD)
+ tp->full_duplex = 1;
+ }
+ if (tp->full_duplex)
+ tp->autoneg = 0;
+ else
+ tp->autoneg = 1;
+ tp->speed100 = 1;
+
+ /* The Xircom-specific entries in the device structure. */
+ dev->open = &xircom_open;
+ dev->hard_start_xmit = &xircom_start_xmit;
+ dev->stop = &xircom_close;
+ dev->get_stats = &xircom_get_stats;
+ dev->do_ioctl = &xircom_ioctl;
+#ifdef HAVE_MULTICAST
+ dev->set_multicast_list = &set_rx_mode;
+#endif
+ dev->tx_timeout = xircom_tx_timeout;
+ dev->watchdog_timeo = TX_TIMEOUT;
+ SET_ETHTOOL_OPS(dev, &ops);
+
+ transceiver_voodoo(dev);
+
+ read_mac_address(dev);
+
+ if (register_netdev(dev))
+ goto err_out_cleardev;
+
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &chip_rev);
+ printk(KERN_INFO "%s: %s rev %d at %#3lx,",
+ dev->name, xircom_tbl[chip_idx].chip_name, chip_rev, ioaddr);
+ for (i = 0; i < 6; i++)
+ printk("%c%2.2X", i ? ':' : ' ', dev->dev_addr[i]);
+ printk(", IRQ %d.\n", dev->irq);
+
+ if (xircom_tbl[chip_idx].flags & HAS_MII) {
+ find_mii_transceivers(dev);
+ check_duplex(dev);
+ }
+
+ return 0;
+
+err_out_cleardev:
+ pci_set_drvdata(pdev, NULL);
+ pci_release_regions(pdev);
+err_out_free_netdev:
+ free_netdev(dev);
+ return -ENODEV;
+}
+
+
+/* MII transceiver control section.
+ Read and write the MII registers using software-generated serial
+ MDIO protocol. See the MII specifications or DP83840A data sheet
+ for details. */
+
+/* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
+ met by back-to-back PCI I/O cycles, but we insert a delay to avoid
+ "overclocking" issues or future 66Mhz PCI. */
+#define mdio_delay() inl(mdio_addr)
+
+/* Read and write the MII registers using software-generated serial
+ MDIO protocol. It is just different enough from the EEPROM protocol
+ to not share code. The maxium data clock rate is 2.5 Mhz. */
+#define MDIO_SHIFT_CLK 0x10000
+#define MDIO_DATA_WRITE0 0x00000
+#define MDIO_DATA_WRITE1 0x20000
+#define MDIO_ENB 0x00000 /* Ignore the 0x02000 databook setting. */
+#define MDIO_ENB_IN 0x40000
+#define MDIO_DATA_READ 0x80000
+
+static int mdio_read(struct net_device *dev, int phy_id, int location)
+{
+ int i;
+ int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
+ int retval = 0;
+ long ioaddr = dev->base_addr;
+ long mdio_addr = ioaddr + CSR9;
+
+ /* Establish sync by sending at least 32 logic ones. */
+ for (i = 32; i >= 0; i--) {
+ outl(MDIO_ENB | MDIO_DATA_WRITE1, mdio_addr);
+ mdio_delay();
+ outl(MDIO_ENB | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ /* Shift the read command bits out. */
+ for (i = 15; i >= 0; i--) {
+ int dataval = (read_cmd & (1 << i)) ? MDIO_DATA_WRITE1 : 0;
+
+ outl(MDIO_ENB | dataval, mdio_addr);
+ mdio_delay();
+ outl(MDIO_ENB | dataval | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ /* Read the two transition, 16 data, and wire-idle bits. */
+ for (i = 19; i > 0; i--) {
+ outl(MDIO_ENB_IN, mdio_addr);
+ mdio_delay();
+ retval = (retval << 1) | ((inl(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
+ outl(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ return (retval>>1) & 0xffff;
+}
+
+
+static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
+{
+ int i;
+ int cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value;
+ long ioaddr = dev->base_addr;
+ long mdio_addr = ioaddr + CSR9;
+
+ /* Establish sync by sending 32 logic ones. */
+ for (i = 32; i >= 0; i--) {
+ outl(MDIO_ENB | MDIO_DATA_WRITE1, mdio_addr);
+ mdio_delay();
+ outl(MDIO_ENB | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ /* Shift the command bits out. */
+ for (i = 31; i >= 0; i--) {
+ int dataval = (cmd & (1 << i)) ? MDIO_DATA_WRITE1 : 0;
+ outl(MDIO_ENB | dataval, mdio_addr);
+ mdio_delay();
+ outl(MDIO_ENB | dataval | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ /* Clear out extra bits. */
+ for (i = 2; i > 0; i--) {
+ outl(MDIO_ENB_IN, mdio_addr);
+ mdio_delay();
+ outl(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ return;
+}
+
+
+static void
+xircom_up(struct net_device *dev)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+ int i;
+
+ xircom_init_ring(dev);
+ /* Clear the tx ring */
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ tp->tx_skbuff[i] = NULL;
+ tp->tx_ring[i].status = 0;
+ }
+
+ if (xircom_debug > 1)
+ printk(KERN_DEBUG "%s: xircom_up() irq %d.\n", dev->name, dev->irq);
+
+ outl(virt_to_bus(tp->rx_ring), ioaddr + CSR3);
+ outl(virt_to_bus(tp->tx_ring), ioaddr + CSR4);
+
+ tp->saved_if_port = dev->if_port;
+ if (dev->if_port == 0)
+ dev->if_port = tp->default_port;
+
+ tp->csr6 = TxThresh10 /*| FullDuplexBit*/; /* XXX: why 10 and not 100? */
+
+ set_rx_mode(dev);
+
+ /* Start the chip's Tx to process setup frame. */
+ outl_CSR6(tp->csr6, ioaddr);
+ outl_CSR6(tp->csr6 | EnableTx, ioaddr);
+
+ /* Acknowledge all outstanding interrupts sources */
+ outl(xircom_tbl[tp->chip_id].valid_intrs, ioaddr + CSR5);
+ /* Enable interrupts by setting the interrupt mask. */
+ outl(xircom_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7);
+ /* Enable Rx */
+ outl_CSR6(tp->csr6 | EnableTxRx, ioaddr);
+ /* Rx poll demand */
+ outl(0, ioaddr + CSR2);
+
+ /* Tell the net layer we're ready */
+ netif_start_queue (dev);
+
+ /* Check current media state */
+ xircom_media_change(dev);
+
+ if (xircom_debug > 2) {
+ printk(KERN_DEBUG "%s: Done xircom_up(), CSR0 %8.8x, CSR5 %8.8x CSR6 %8.8x.\n",
+ dev->name, inl(ioaddr + CSR0), inl(ioaddr + CSR5),
+ inl(ioaddr + CSR6));
+ }
+}
+
+
+static int
+xircom_open(struct net_device *dev)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+
+ if (request_irq(dev->irq, &xircom_interrupt, SA_SHIRQ, dev->name, dev))
+ return -EAGAIN;
+
+ xircom_up(dev);
+ tp->open = 1;
+
+ return 0;
+}
+
+
+static void xircom_tx_timeout(struct net_device *dev)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+
+ if (media_cap[dev->if_port] & MediaIsMII) {
+ /* Do nothing -- the media monitor should handle this. */
+ if (xircom_debug > 1)
+ printk(KERN_WARNING "%s: Transmit timeout using MII device.\n",
+ dev->name);
+ }
+
+#if defined(way_too_many_messages)
+ if (xircom_debug > 3) {
+ int i;
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ u8 *buf = (u8 *)(tp->rx_ring[i].buffer1);
+ int j;
+ printk(KERN_DEBUG "%2d: %8.8x %8.8x %8.8x %8.8x "
+ "%2.2x %2.2x %2.2x.\n",
+ i, (unsigned int)tp->rx_ring[i].status,
+ (unsigned int)tp->rx_ring[i].length,
+ (unsigned int)tp->rx_ring[i].buffer1,
+ (unsigned int)tp->rx_ring[i].buffer2,
+ buf[0], buf[1], buf[2]);
+ for (j = 0; buf[j] != 0xee && j < 1600; j++)
+ if (j < 100) printk(" %2.2x", buf[j]);
+ printk(" j=%d.\n", j);
+ }
+ printk(KERN_DEBUG " Rx ring %8.8x: ", (int)tp->rx_ring);
+ for (i = 0; i < RX_RING_SIZE; i++)
+ printk(" %8.8x", (unsigned int)tp->rx_ring[i].status);
+ printk("\n" KERN_DEBUG " Tx ring %8.8x: ", (int)tp->tx_ring);
+ for (i = 0; i < TX_RING_SIZE; i++)
+ printk(" %8.8x", (unsigned int)tp->tx_ring[i].status);
+ printk("\n");
+ }
+#endif
+
+ /* Stop and restart the chip's Tx/Rx processes . */
+ outl_CSR6(tp->csr6 | EnableRx, ioaddr);
+ outl_CSR6(tp->csr6 | EnableTxRx, ioaddr);
+ /* Trigger an immediate transmit demand. */
+ outl(0, ioaddr + CSR1);
+
+ dev->trans_start = jiffies;
+ netif_wake_queue (dev);
+ tp->stats.tx_errors++;
+}
+
+
+/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
+static void xircom_init_ring(struct net_device *dev)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ int i;
+
+ tp->tx_full = 0;
+ tp->cur_rx = tp->cur_tx = 0;
+ tp->dirty_rx = tp->dirty_tx = 0;
+
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ tp->rx_ring[i].status = 0;
+ tp->rx_ring[i].length = PKT_BUF_SZ;
+ tp->rx_ring[i].buffer2 = virt_to_bus(&tp->rx_ring[i+1]);
+ tp->rx_skbuff[i] = NULL;
+ }
+ /* Mark the last entry as wrapping the ring. */
+ tp->rx_ring[i-1].length = PKT_BUF_SZ | Rx1RingWrap;
+ tp->rx_ring[i-1].buffer2 = virt_to_bus(&tp->rx_ring[0]);
+
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ /* Note the receive buffer must be longword aligned.
+ dev_alloc_skb() provides 16 byte alignment. But do *not*
+ use skb_reserve() to align the IP header! */
+ struct sk_buff *skb = dev_alloc_skb(PKT_BUF_SZ);
+ tp->rx_skbuff[i] = skb;
+ if (skb == NULL)
+ break;
+ skb->dev = dev; /* Mark as being used by this device. */
+ tp->rx_ring[i].status = Rx0DescOwned; /* Owned by Xircom chip */
+ tp->rx_ring[i].buffer1 = virt_to_bus(skb->tail);
+ }
+ tp->dirty_rx = (unsigned int)(i - RX_RING_SIZE);
+
+ /* The Tx buffer descriptor is filled in as needed, but we
+ do need to clear the ownership bit. */
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ tp->tx_skbuff[i] = NULL;
+ tp->tx_ring[i].status = 0;
+ tp->tx_ring[i].buffer2 = virt_to_bus(&tp->tx_ring[i+1]);
+#ifdef CARDBUS
+ if (tp->chip_id == X3201_3)
+ tp->tx_aligned_skbuff[i] = dev_alloc_skb(PKT_BUF_SZ);
+#endif /* CARDBUS */
+ }
+ tp->tx_ring[i-1].buffer2 = virt_to_bus(&tp->tx_ring[0]);
+}
+
+
+static int
+xircom_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ int entry;
+ u32 flag;
+
+ /* Caution: the write order is important here, set the base address
+ with the "ownership" bits last. */
+
+ /* Calculate the next Tx descriptor entry. */
+ entry = tp->cur_tx % TX_RING_SIZE;
+
+ tp->tx_skbuff[entry] = skb;
+#ifdef CARDBUS
+ if (tp->chip_id == X3201_3) {
+ memcpy(tp->tx_aligned_skbuff[entry]->data,skb->data,skb->len);
+ tp->tx_ring[entry].buffer1 = virt_to_bus(tp->tx_aligned_skbuff[entry]->data);
+ } else
+#endif
+ tp->tx_ring[entry].buffer1 = virt_to_bus(skb->data);
+
+ if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE/2) {/* Typical path */
+ flag = Tx1WholePkt; /* No interrupt */
+ } else if (tp->cur_tx - tp->dirty_tx == TX_RING_SIZE/2) {
+ flag = Tx1WholePkt | Tx1ComplIntr; /* Tx-done intr. */
+ } else if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE - 2) {
+ flag = Tx1WholePkt; /* No Tx-done intr. */
+ } else {
+ /* Leave room for set_rx_mode() to fill entries. */
+ flag = Tx1WholePkt | Tx1ComplIntr; /* Tx-done intr. */
+ tp->tx_full = 1;
+ }
+ if (entry == TX_RING_SIZE - 1)
+ flag |= Tx1WholePkt | Tx1ComplIntr | Tx1RingWrap;
+
+ tp->tx_ring[entry].length = skb->len | flag;
+ tp->tx_ring[entry].status = Tx0DescOwned; /* Pass ownership to the chip. */
+ tp->cur_tx++;
+ if (tp->tx_full)
+ netif_stop_queue (dev);
+ else
+ netif_wake_queue (dev);
+
+ /* Trigger an immediate transmit demand. */
+ outl(0, dev->base_addr + CSR1);
+
+ dev->trans_start = jiffies;
+
+ return 0;
+}
+
+
+static void xircom_media_change(struct net_device *dev)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+ u16 reg0, reg1, reg4, reg5;
+ u32 csr6 = inl(ioaddr + CSR6), newcsr6;
+
+ /* reset status first */
+ mdio_read(dev, tp->phys[0], MII_BMCR);
+ mdio_read(dev, tp->phys[0], MII_BMSR);
+
+ reg0 = mdio_read(dev, tp->phys[0], MII_BMCR);
+ reg1 = mdio_read(dev, tp->phys[0], MII_BMSR);
+
+ if (reg1 & BMSR_LSTATUS) {
+ /* link is up */
+ if (reg0 & BMCR_ANENABLE) {
+ /* autonegotiation is enabled */
+ reg4 = mdio_read(dev, tp->phys[0], MII_ADVERTISE);
+ reg5 = mdio_read(dev, tp->phys[0], MII_LPA);
+ if (reg4 & ADVERTISE_100FULL && reg5 & LPA_100FULL) {
+ tp->speed100 = 1;
+ tp->full_duplex = 1;
+ } else if (reg4 & ADVERTISE_100HALF && reg5 & LPA_100HALF) {
+ tp->speed100 = 1;
+ tp->full_duplex = 0;
+ } else if (reg4 & ADVERTISE_10FULL && reg5 & LPA_10FULL) {
+ tp->speed100 = 0;
+ tp->full_duplex = 1;
+ } else {
+ tp->speed100 = 0;
+ tp->full_duplex = 0;
+ }
+ } else {
+ /* autonegotiation is disabled */
+ if (reg0 & BMCR_SPEED100)
+ tp->speed100 = 1;
+ else
+ tp->speed100 = 0;
+ if (reg0 & BMCR_FULLDPLX)
+ tp->full_duplex = 1;
+ else
+ tp->full_duplex = 0;
+ }
+ printk(KERN_DEBUG "%s: Link is up, running at %sMbit %s-duplex\n",
+ dev->name,
+ tp->speed100 ? "100" : "10",
+ tp->full_duplex ? "full" : "half");
+ netif_carrier_on(dev);
+ newcsr6 = csr6 & ~FullDuplexBit;
+ if (tp->full_duplex)
+ newcsr6 |= FullDuplexBit;
+ if (newcsr6 != csr6)
+ outl_CSR6(newcsr6, ioaddr + CSR6);
+ } else {
+ printk(KERN_DEBUG "%s: Link is down\n", dev->name);
+ netif_carrier_off(dev);
+ }
+}
+
+
+static void check_duplex(struct net_device *dev)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ u16 reg0;
+
+ mdio_write(dev, tp->phys[0], MII_BMCR, BMCR_RESET);
+ udelay(500);
+ while (mdio_read(dev, tp->phys[0], MII_BMCR) & BMCR_RESET);
+
+ reg0 = mdio_read(dev, tp->phys[0], MII_BMCR);
+ mdio_write(dev, tp->phys[0], MII_ADVERTISE, tp->advertising[0]);
+
+ if (tp->autoneg) {
+ reg0 &= ~(BMCR_SPEED100 | BMCR_FULLDPLX);
+ reg0 |= BMCR_ANENABLE | BMCR_ANRESTART;
+ } else {
+ reg0 &= ~(BMCR_ANENABLE | BMCR_ANRESTART);
+ if (tp->speed100)
+ reg0 |= BMCR_SPEED100;
+ if (tp->full_duplex)
+ reg0 |= BMCR_FULLDPLX;
+ printk(KERN_DEBUG "%s: Link forced to %sMbit %s-duplex\n",
+ dev->name,
+ tp->speed100 ? "100" : "10",
+ tp->full_duplex ? "full" : "half");
+ }
+ mdio_write(dev, tp->phys[0], MII_BMCR, reg0);
+}
+
+
+/* The interrupt handler does all of the Rx thread work and cleans up
+ after the Tx thread. */
+static irqreturn_t xircom_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
+{
+ struct net_device *dev = dev_instance;
+ struct xircom_private *tp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+ int csr5, work_budget = max_interrupt_work;
+ int handled = 0;
+
+ spin_lock (&tp->lock);
+
+ do {
+ csr5 = inl(ioaddr + CSR5);
+ /* Acknowledge all of the current interrupt sources ASAP. */
+ outl(csr5 & 0x0001ffff, ioaddr + CSR5);
+
+ if (xircom_debug > 4)
+ printk(KERN_DEBUG "%s: interrupt csr5=%#8.8x new csr5=%#8.8x.\n",
+ dev->name, csr5, inl(dev->base_addr + CSR5));
+
+ if (csr5 == 0xffffffff)
+ break; /* all bits set, assume PCMCIA card removed */
+
+ if ((csr5 & (NormalIntr|AbnormalIntr)) == 0)
+ break;
+
+ handled = 1;
+
+ if (csr5 & (RxIntr | RxNoBuf))
+ work_budget -= xircom_rx(dev);
+
+ if (csr5 & (TxNoBuf | TxDied | TxIntr)) {
+ unsigned int dirty_tx;
+
+ for (dirty_tx = tp->dirty_tx; tp->cur_tx - dirty_tx > 0;
+ dirty_tx++) {
+ int entry = dirty_tx % TX_RING_SIZE;
+ int status = tp->tx_ring[entry].status;
+
+ if (status < 0)
+ break; /* It still hasn't been Txed */
+ /* Check for Rx filter setup frames. */
+ if (tp->tx_skbuff[entry] == NULL)
+ continue;
+
+ if (status & Tx0DescError) {
+ /* There was an major error, log it. */
+#ifndef final_version
+ if (xircom_debug > 1)
+ printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n",
+ dev->name, status);
+#endif
+ tp->stats.tx_errors++;
+ if (status & Tx0ManyColl) {
+ tp->stats.tx_aborted_errors++;
+ }
+ if (status & Tx0NoCarrier) tp->stats.tx_carrier_errors++;
+ if (status & Tx0LateColl) tp->stats.tx_window_errors++;
+ if (status & Tx0Underflow) tp->stats.tx_fifo_errors++;
+ } else {
+ tp->stats.tx_bytes += tp->tx_ring[entry].length & 0x7ff;
+ tp->stats.collisions += (status >> 3) & 15;
+ tp->stats.tx_packets++;
+ }
+
+ /* Free the original skb. */
+ dev_kfree_skb_irq(tp->tx_skbuff[entry]);
+ tp->tx_skbuff[entry] = NULL;
+ }
+
+#ifndef final_version
+ if (tp->cur_tx - dirty_tx > TX_RING_SIZE) {
+ printk(KERN_ERR "%s: Out-of-sync dirty pointer, %d vs. %d, full=%d.\n",
+ dev->name, dirty_tx, tp->cur_tx, tp->tx_full);
+ dirty_tx += TX_RING_SIZE;
+ }
+#endif
+
+ if (tp->tx_full &&
+ tp->cur_tx - dirty_tx < TX_RING_SIZE - 2)
+ /* The ring is no longer full */
+ tp->tx_full = 0;
+
+ if (tp->tx_full)
+ netif_stop_queue (dev);
+ else
+ netif_wake_queue (dev);
+
+ tp->dirty_tx = dirty_tx;
+ if (csr5 & TxDied) {
+ if (xircom_debug > 2)
+ printk(KERN_WARNING "%s: The transmitter stopped."
+ " CSR5 is %x, CSR6 %x, new CSR6 %x.\n",
+ dev->name, csr5, inl(ioaddr + CSR6), tp->csr6);
+ outl_CSR6(tp->csr6 | EnableRx, ioaddr);
+ outl_CSR6(tp->csr6 | EnableTxRx, ioaddr);
+ }
+ }
+
+ /* Log errors. */
+ if (csr5 & AbnormalIntr) { /* Abnormal error summary bit. */
+ if (csr5 & LinkChange)
+ xircom_media_change(dev);
+ if (csr5 & TxFIFOUnderflow) {
+ if ((tp->csr6 & TxThreshMask) != TxThreshMask)
+ tp->csr6 += (1 << TxThreshShift); /* Bump up the Tx threshold */
+ else
+ tp->csr6 |= TxStoreForw; /* Store-n-forward. */
+ /* Restart the transmit process. */
+ outl_CSR6(tp->csr6 | EnableRx, ioaddr);
+ outl_CSR6(tp->csr6 | EnableTxRx, ioaddr);
+ }
+ if (csr5 & RxDied) { /* Missed a Rx frame. */
+ tp->stats.rx_errors++;
+ tp->stats.rx_missed_errors += inl(ioaddr + CSR8) & 0xffff;
+ outl_CSR6(tp->csr6 | EnableTxRx, ioaddr);
+ }
+ /* Clear all error sources, included undocumented ones! */
+ outl(0x0800f7ba, ioaddr + CSR5);
+ }
+ if (--work_budget < 0) {
+ if (xircom_debug > 1)
+ printk(KERN_WARNING "%s: Too much work during an interrupt, "
+ "csr5=0x%8.8x.\n", dev->name, csr5);
+ /* Acknowledge all interrupt sources. */
+ outl(0x8001ffff, ioaddr + CSR5);
+ break;
+ }
+ } while (1);
+
+ if (xircom_debug > 3)
+ printk(KERN_DEBUG "%s: exiting interrupt, csr5=%#4.4x.\n",
+ dev->name, inl(ioaddr + CSR5));
+
+ spin_unlock (&tp->lock);
+ return IRQ_RETVAL(handled);
+}
+
+
+static int
+xircom_rx(struct net_device *dev)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ int entry = tp->cur_rx % RX_RING_SIZE;
+ int rx_work_limit = tp->dirty_rx + RX_RING_SIZE - tp->cur_rx;
+ int work_done = 0;
+
+ if (xircom_debug > 4)
+ printk(KERN_DEBUG " In xircom_rx(), entry %d %8.8x.\n", entry,
+ tp->rx_ring[entry].status);
+ /* If we own the next entry, it's a new packet. Send it up. */
+ while (tp->rx_ring[entry].status >= 0) {
+ s32 status = tp->rx_ring[entry].status;
+
+ if (xircom_debug > 5)
+ printk(KERN_DEBUG " In xircom_rx(), entry %d %8.8x.\n", entry,
+ tp->rx_ring[entry].status);
+ if (--rx_work_limit < 0)
+ break;
+ if ((status & 0x38008300) != 0x0300) {
+ if ((status & 0x38000300) != 0x0300) {
+ /* Ignore earlier buffers. */
+ if ((status & 0xffff) != 0x7fff) {
+ if (xircom_debug > 1)
+ printk(KERN_WARNING "%s: Oversized Ethernet frame "
+ "spanned multiple buffers, status %8.8x!\n",
+ dev->name, status);
+ tp->stats.rx_length_errors++;
+ }
+ } else if (status & Rx0DescError) {
+ /* There was a fatal error. */
+ if (xircom_debug > 2)
+ printk(KERN_DEBUG "%s: Receive error, Rx status %8.8x.\n",
+ dev->name, status);
+ tp->stats.rx_errors++; /* end of a packet.*/
+ if (status & (Rx0Runt | Rx0HugeFrame)) tp->stats.rx_length_errors++;
+ if (status & Rx0CRCError) tp->stats.rx_crc_errors++;
+ }
+ } else {
+ /* Omit the four octet CRC from the length. */
+ short pkt_len = ((status >> 16) & 0x7ff) - 4;
+ struct sk_buff *skb;
+
+#ifndef final_version
+ if (pkt_len > 1518) {
+ printk(KERN_WARNING "%s: Bogus packet size of %d (%#x).\n",
+ dev->name, pkt_len, pkt_len);
+ pkt_len = 1518;
+ tp->stats.rx_length_errors++;
+ }
+#endif
+ /* Check if the packet is long enough to accept without copying
+ to a minimally-sized skbuff. */
+ if (pkt_len < rx_copybreak
+ && (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
+ skb->dev = dev;
+ skb_reserve(skb, 2); /* 16 byte align the IP header */
+#if ! defined(__alpha__)
+ eth_copy_and_sum(skb, bus_to_virt(tp->rx_ring[entry].buffer1),
+ pkt_len, 0);
+ skb_put(skb, pkt_len);
+#else
+ memcpy(skb_put(skb, pkt_len),
+ bus_to_virt(tp->rx_ring[entry].buffer1), pkt_len);
+#endif
+ work_done++;
+ } else { /* Pass up the skb already on the Rx ring. */
+ skb_put(skb = tp->rx_skbuff[entry], pkt_len);
+ tp->rx_skbuff[entry] = NULL;
+ }
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_rx(skb);
+ dev->last_rx = jiffies;
+ tp->stats.rx_packets++;
+ tp->stats.rx_bytes += pkt_len;
+ }
+ entry = (++tp->cur_rx) % RX_RING_SIZE;
+ }
+
+ /* Refill the Rx ring buffers. */
+ for (; tp->cur_rx - tp->dirty_rx > 0; tp->dirty_rx++) {
+ entry = tp->dirty_rx % RX_RING_SIZE;
+ if (tp->rx_skbuff[entry] == NULL) {
+ struct sk_buff *skb;
+ skb = tp->rx_skbuff[entry] = dev_alloc_skb(PKT_BUF_SZ);
+ if (skb == NULL)
+ break;
+ skb->dev = dev; /* Mark as being used by this device. */
+ tp->rx_ring[entry].buffer1 = virt_to_bus(skb->tail);
+ work_done++;
+ }
+ tp->rx_ring[entry].status = Rx0DescOwned;
+ }
+
+ return work_done;
+}
+
+
+static void
+xircom_down(struct net_device *dev)
+{
+ long ioaddr = dev->base_addr;
+ struct xircom_private *tp = netdev_priv(dev);
+
+ /* Disable interrupts by clearing the interrupt mask. */
+ outl(0, ioaddr + CSR7);
+ /* Stop the chip's Tx and Rx processes. */
+ outl_CSR6(inl(ioaddr + CSR6) & ~EnableTxRx, ioaddr);
+
+ if (inl(ioaddr + CSR6) != 0xffffffff)
+ tp->stats.rx_missed_errors += inl(ioaddr + CSR8) & 0xffff;
+
+ dev->if_port = tp->saved_if_port;
+}
+
+
+static int
+xircom_close(struct net_device *dev)
+{
+ long ioaddr = dev->base_addr;
+ struct xircom_private *tp = netdev_priv(dev);
+ int i;
+
+ if (xircom_debug > 1)
+ printk(KERN_DEBUG "%s: Shutting down ethercard, status was %2.2x.\n",
+ dev->name, inl(ioaddr + CSR5));
+
+ netif_stop_queue(dev);
+
+ if (netif_device_present(dev))
+ xircom_down(dev);
+
+ free_irq(dev->irq, dev);
+
+ /* Free all the skbuffs in the Rx queue. */
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ struct sk_buff *skb = tp->rx_skbuff[i];
+ tp->rx_skbuff[i] = NULL;
+ tp->rx_ring[i].status = 0; /* Not owned by Xircom chip. */
+ tp->rx_ring[i].length = 0;
+ tp->rx_ring[i].buffer1 = 0xBADF00D0; /* An invalid address. */
+ if (skb) {
+ dev_kfree_skb(skb);
+ }
+ }
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ if (tp->tx_skbuff[i])
+ dev_kfree_skb(tp->tx_skbuff[i]);
+ tp->tx_skbuff[i] = NULL;
+ }
+
+ tp->open = 0;
+ return 0;
+}
+
+
+static struct net_device_stats *xircom_get_stats(struct net_device *dev)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+
+ if (netif_device_present(dev))
+ tp->stats.rx_missed_errors += inl(ioaddr + CSR8) & 0xffff;
+
+ return &tp->stats;
+}
+
+static int xircom_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ ecmd->supported =
+ SUPPORTED_10baseT_Half |
+ SUPPORTED_10baseT_Full |
+ SUPPORTED_100baseT_Half |
+ SUPPORTED_100baseT_Full |
+ SUPPORTED_Autoneg |
+ SUPPORTED_MII;
+
+ ecmd->advertising = ADVERTISED_MII;
+ if (tp->advertising[0] & ADVERTISE_10HALF)
+ ecmd->advertising |= ADVERTISED_10baseT_Half;
+ if (tp->advertising[0] & ADVERTISE_10FULL)
+ ecmd->advertising |= ADVERTISED_10baseT_Full;
+ if (tp->advertising[0] & ADVERTISE_100HALF)
+ ecmd->advertising |= ADVERTISED_100baseT_Half;
+ if (tp->advertising[0] & ADVERTISE_100FULL)
+ ecmd->advertising |= ADVERTISED_100baseT_Full;
+ if (tp->autoneg) {
+ ecmd->advertising |= ADVERTISED_Autoneg;
+ ecmd->autoneg = AUTONEG_ENABLE;
+ } else
+ ecmd->autoneg = AUTONEG_DISABLE;
+
+ ecmd->port = PORT_MII;
+ ecmd->transceiver = XCVR_INTERNAL;
+ ecmd->phy_address = tp->phys[0];
+ ecmd->speed = tp->speed100 ? SPEED_100 : SPEED_10;
+ ecmd->duplex = tp->full_duplex ? DUPLEX_FULL : DUPLEX_HALF;
+ ecmd->maxtxpkt = TX_RING_SIZE / 2;
+ ecmd->maxrxpkt = 0;
+ return 0;
+}
+
+static int xircom_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ u16 autoneg, speed100, full_duplex;
+
+ autoneg = (ecmd->autoneg == AUTONEG_ENABLE);
+ speed100 = (ecmd->speed == SPEED_100);
+ full_duplex = (ecmd->duplex == DUPLEX_FULL);
+
+ tp->autoneg = autoneg;
+ if (speed100 != tp->speed100 ||
+ full_duplex != tp->full_duplex) {
+ tp->speed100 = speed100;
+ tp->full_duplex = full_duplex;
+ /* change advertising bits */
+ tp->advertising[0] &= ~(ADVERTISE_10HALF |
+ ADVERTISE_10FULL |
+ ADVERTISE_100HALF |
+ ADVERTISE_100FULL |
+ ADVERTISE_100BASE4);
+ if (speed100) {
+ if (full_duplex)
+ tp->advertising[0] |= ADVERTISE_100FULL;
+ else
+ tp->advertising[0] |= ADVERTISE_100HALF;
+ } else {
+ if (full_duplex)
+ tp->advertising[0] |= ADVERTISE_10FULL;
+ else
+ tp->advertising[0] |= ADVERTISE_10HALF;
+ }
+ }
+ check_duplex(dev);
+ return 0;
+}
+
+static void xircom_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ strcpy(info->driver, DRV_NAME);
+ strcpy(info->version, DRV_VERSION);
+ strcpy(info->bus_info, pci_name(tp->pdev));
+}
+
+static struct ethtool_ops ops = {
+ .get_settings = xircom_get_settings,
+ .set_settings = xircom_set_settings,
+ .get_drvinfo = xircom_get_drvinfo,
+};
+
+/* Provide ioctl() calls to examine the MII xcvr state. */
+static int xircom_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ u16 *data = (u16 *)&rq->ifr_ifru;
+ int phy = tp->phys[0] & 0x1f;
+ unsigned long flags;
+
+ switch(cmd) {
+ /* Legacy mii-diag interface */
+ case SIOCGMIIPHY: /* Get address of MII PHY in use. */
+ if (tp->mii_cnt)
+ data[0] = phy;
+ else
+ return -ENODEV;
+ return 0;
+ case SIOCGMIIREG: /* Read MII PHY register. */
+ save_flags(flags);
+ cli();
+ data[3] = mdio_read(dev, data[0] & 0x1f, data[1] & 0x1f);
+ restore_flags(flags);
+ return 0;
+ case SIOCSMIIREG: /* Write MII PHY register. */
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+ save_flags(flags);
+ cli();
+ if (data[0] == tp->phys[0]) {
+ u16 value = data[2];
+ switch (data[1]) {
+ case 0:
+ if (value & (BMCR_RESET | BMCR_ANENABLE))
+ /* Autonegotiation. */
+ tp->autoneg = 1;
+ else {
+ tp->full_duplex = (value & BMCR_FULLDPLX) ? 1 : 0;
+ tp->autoneg = 0;
+ }
+ break;
+ case 4:
+ tp->advertising[0] = value;
+ break;
+ }
+ check_duplex(dev);
+ }
+ mdio_write(dev, data[0] & 0x1f, data[1] & 0x1f, data[2]);
+ restore_flags(flags);
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return -EOPNOTSUPP;
+}
+
+/* Set or clear the multicast filter for this adaptor.
+ Note that we only use exclusion around actually queueing the
+ new frame, not around filling tp->setup_frame. This is non-deterministic
+ when re-entered but still correct. */
+static void set_rx_mode(struct net_device *dev)
+{
+ struct xircom_private *tp = netdev_priv(dev);
+ struct dev_mc_list *mclist;
+ long ioaddr = dev->base_addr;
+ int csr6 = inl(ioaddr + CSR6);
+ u16 *eaddrs, *setup_frm;
+ u32 tx_flags;
+ int i;
+
+ tp->csr6 &= ~(AllMultiBit | PromiscBit | HashFilterBit);
+ csr6 &= ~(AllMultiBit | PromiscBit | HashFilterBit);
+ if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
+ tp->csr6 |= PromiscBit;
+ csr6 |= PromiscBit;
+ goto out;
+ }
+
+ if ((dev->mc_count > 1000) || (dev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter well -- accept all multicasts. */
+ tp->csr6 |= AllMultiBit;
+ csr6 |= AllMultiBit;
+ goto out;
+ }
+
+ tx_flags = Tx1WholePkt | Tx1SetupPkt | PKT_SETUP_SZ;
+
+ /* Note that only the low-address shortword of setup_frame is valid! */
+ setup_frm = tp->setup_frame;
+ mclist = dev->mc_list;
+
+ /* Fill the first entry with our physical address. */
+ eaddrs = (u16 *)dev->dev_addr;
+ *setup_frm = cpu_to_le16(eaddrs[0]); setup_frm += 2;
+ *setup_frm = cpu_to_le16(eaddrs[1]); setup_frm += 2;
+ *setup_frm = cpu_to_le16(eaddrs[2]); setup_frm += 2;
+
+ if (dev->mc_count > 14) { /* Must use a multicast hash table. */
+ u32 *hash_table = (u32 *)(tp->setup_frame + 4 * 12);
+ u32 hash, hash2;
+
+ tx_flags |= Tx1HashSetup;
+ tp->csr6 |= HashFilterBit;
+ csr6 |= HashFilterBit;
+
+ /* Fill the unused 3 entries with the broadcast address.
+ At least one entry *must* contain the broadcast address!!!*/
+ for (i = 0; i < 3; i++) {
+ *setup_frm = 0xffff; setup_frm += 2;
+ *setup_frm = 0xffff; setup_frm += 2;
+ *setup_frm = 0xffff; setup_frm += 2;
+ }
+
+ /* Truly brain-damaged hash filter layout */
+ /* XXX: not sure if I should take the last or the first 9 bits */
+ for (i = 0; i < dev->mc_count; i++, mclist = mclist->next) {
+ u32 *hptr;
+ hash = ether_crc(ETH_ALEN, mclist->dmi_addr) & 0x1ff;
+ if (hash < 384) {
+ hash2 = hash + ((hash >> 4) << 4) +
+ ((hash >> 5) << 5);
+ } else {
+ hash -= 384;
+ hash2 = 64 + hash + (hash >> 4) * 80;
+ }
+ hptr = &hash_table[hash2 & ~0x1f];
+ *hptr |= cpu_to_le32(1 << (hash2 & 0x1f));
+ }
+ } else {
+ /* We have <= 14 mcast addresses so we can use Xircom's
+ wonderful 16-address perfect filter. */
+ for (i = 0; i < dev->mc_count; i++, mclist = mclist->next) {
+ eaddrs = (u16 *)mclist->dmi_addr;
+ *setup_frm = cpu_to_le16(eaddrs[0]); setup_frm += 2;
+ *setup_frm = cpu_to_le16(eaddrs[1]); setup_frm += 2;
+ *setup_frm = cpu_to_le16(eaddrs[2]); setup_frm += 2;
+ }
+ /* Fill the unused entries with the broadcast address.
+ At least one entry *must* contain the broadcast address!!!*/
+ for (; i < 15; i++) {
+ *setup_frm = 0xffff; setup_frm += 2;
+ *setup_frm = 0xffff; setup_frm += 2;
+ *setup_frm = 0xffff; setup_frm += 2;
+ }
+ }
+
+ /* Now add this frame to the Tx list. */
+ if (tp->cur_tx - tp->dirty_tx > TX_RING_SIZE - 2) {
+ /* Same setup recently queued, we need not add it. */
+ /* XXX: Huh? All it means is that the Tx list is full...*/
+ } else {
+ unsigned long flags;
+ unsigned int entry;
+ int dummy = -1;
+
+ save_flags(flags); cli();
+ entry = tp->cur_tx++ % TX_RING_SIZE;
+
+ if (entry != 0) {
+ /* Avoid a chip errata by prefixing a dummy entry. */
+ tp->tx_skbuff[entry] = NULL;
+ tp->tx_ring[entry].length =
+ (entry == TX_RING_SIZE - 1) ? Tx1RingWrap : 0;
+ tp->tx_ring[entry].buffer1 = 0;
+ /* race with chip, set Tx0DescOwned later */
+ dummy = entry;
+ entry = tp->cur_tx++ % TX_RING_SIZE;
+ }
+
+ tp->tx_skbuff[entry] = NULL;
+ /* Put the setup frame on the Tx list. */
+ if (entry == TX_RING_SIZE - 1)
+ tx_flags |= Tx1RingWrap; /* Wrap ring. */
+ tp->tx_ring[entry].length = tx_flags;
+ tp->tx_ring[entry].buffer1 = virt_to_bus(tp->setup_frame);
+ tp->tx_ring[entry].status = Tx0DescOwned;
+ if (tp->cur_tx - tp->dirty_tx >= TX_RING_SIZE - 2) {
+ tp->tx_full = 1;
+ netif_stop_queue (dev);
+ }
+ if (dummy >= 0)
+ tp->tx_ring[dummy].status = Tx0DescOwned;
+ restore_flags(flags);
+ /* Trigger an immediate transmit demand. */
+ outl(0, ioaddr + CSR1);
+ }
+
+out:
+ outl_CSR6(csr6, ioaddr);
+}
+
+
+static struct pci_device_id xircom_pci_table[] = {
+ { 0x115D, 0x0003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, X3201_3 },
+ {0},
+};
+MODULE_DEVICE_TABLE(pci, xircom_pci_table);
+
+
+#ifdef CONFIG_PM
+static int xircom_suspend(struct pci_dev *pdev, u32 state)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct xircom_private *tp = netdev_priv(dev);
+ printk(KERN_INFO "xircom_suspend(%s)\n", dev->name);
+ if (tp->open)
+ xircom_down(dev);
+
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, 3);
+
+ return 0;
+}
+
+
+static int xircom_resume(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct xircom_private *tp = netdev_priv(dev);
+ printk(KERN_INFO "xircom_resume(%s)\n", dev->name);
+
+ pci_set_power_state(pdev,0);
+ pci_enable_device(pdev);
+ pci_restore_state(pdev);
+
+ /* Bring the chip out of sleep mode.
+ Caution: Snooze mode does not work with some boards! */
+ if (xircom_tbl[tp->chip_id].flags & HAS_ACPI)
+ pci_write_config_dword(tp->pdev, PCI_POWERMGMT, 0);
+
+ transceiver_voodoo(dev);
+ if (xircom_tbl[tp->chip_id].flags & HAS_MII)
+ check_duplex(dev);
+
+ if (tp->open)
+ xircom_up(dev);
+ return 0;
+}
+#endif /* CONFIG_PM */
+
+
+static void __devexit xircom_remove_one(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+
+ printk(KERN_INFO "xircom_remove_one(%s)\n", dev->name);
+ unregister_netdev(dev);
+ pci_release_regions(pdev);
+ free_netdev(dev);
+ pci_set_drvdata(pdev, NULL);
+}
+
+
+static struct pci_driver xircom_driver = {
+ .name = DRV_NAME,
+ .id_table = xircom_pci_table,
+ .probe = xircom_init_one,
+ .remove = __devexit_p(xircom_remove_one),
+#ifdef CONFIG_PM
+ .suspend = xircom_suspend,
+ .resume = xircom_resume
+#endif /* CONFIG_PM */
+};
+
+
+static int __init xircom_init(void)
+{
+/* when a module, this is printed whether or not devices are found in probe */
+#ifdef MODULE
+ printk(version);
+#endif
+ return pci_module_init(&xircom_driver);
+}
+
+
+static void __exit xircom_exit(void)
+{
+ pci_unregister_driver(&xircom_driver);
+}
+
+module_init(xircom_init)
+module_exit(xircom_exit)
+
+/*
+ * Local variables:
+ * c-indent-level: 4
+ * c-basic-offset: 4
+ * tab-width: 4
+ * End:
+ */
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-24 21:49:20 +0300