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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-06-15 21:17:58 +0400
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-12 14:41:22 +0400
commit63d24a0eb71b1ec5ed302816379aaf76eecb053c (patch)
treed277238b203e8cdcf4bf63e58192a68c40f46ece /drivers/net/jme.c
parentc23c5c1663b36c1428df32d1645232662459e02f (diff)
downloadlinux-63d24a0eb71b1ec5ed302816379aaf76eecb053c.tar.xz
jme: Move the JME driver
Move the JME driver into drivers/net/ethernet/ and make the necessary Kconfig and Makefile changes. CC: Guo-Fu Tseng <cooldavid@cooldavid.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/jme.c')
-rw-r--r--drivers/net/jme.c3235
1 files changed, 0 insertions, 3235 deletions
diff --git a/drivers/net/jme.c b/drivers/net/jme.c
deleted file mode 100644
index 3ac262f55633..000000000000
--- a/drivers/net/jme.c
+++ /dev/null
@@ -1,3235 +0,0 @@
-/*
- * JMicron JMC2x0 series PCIe Ethernet Linux Device Driver
- *
- * Copyright 2008 JMicron Technology Corporation
- * http://www.jmicron.com/
- * Copyright (c) 2009 - 2010 Guo-Fu Tseng <cooldavid@cooldavid.org>
- *
- * Author: Guo-Fu Tseng <cooldavid@cooldavid.org>
- *
- * 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.
- *
- * 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.
- *
- * 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.
- *
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/crc32.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/ipv6.h>
-#include <linux/tcp.h>
-#include <linux/udp.h>
-#include <linux/if_vlan.h>
-#include <linux/slab.h>
-#include <net/ip6_checksum.h>
-#include "jme.h"
-
-static int force_pseudohp = -1;
-static int no_pseudohp = -1;
-static int no_extplug = -1;
-module_param(force_pseudohp, int, 0);
-MODULE_PARM_DESC(force_pseudohp,
- "Enable pseudo hot-plug feature manually by driver instead of BIOS.");
-module_param(no_pseudohp, int, 0);
-MODULE_PARM_DESC(no_pseudohp, "Disable pseudo hot-plug feature.");
-module_param(no_extplug, int, 0);
-MODULE_PARM_DESC(no_extplug,
- "Do not use external plug signal for pseudo hot-plug.");
-
-static int
-jme_mdio_read(struct net_device *netdev, int phy, int reg)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- int i, val, again = (reg == MII_BMSR) ? 1 : 0;
-
-read_again:
- jwrite32(jme, JME_SMI, SMI_OP_REQ |
- smi_phy_addr(phy) |
- smi_reg_addr(reg));
-
- wmb();
- for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) {
- udelay(20);
- val = jread32(jme, JME_SMI);
- if ((val & SMI_OP_REQ) == 0)
- break;
- }
-
- if (i == 0) {
- pr_err("phy(%d) read timeout : %d\n", phy, reg);
- return 0;
- }
-
- if (again--)
- goto read_again;
-
- return (val & SMI_DATA_MASK) >> SMI_DATA_SHIFT;
-}
-
-static void
-jme_mdio_write(struct net_device *netdev,
- int phy, int reg, int val)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- int i;
-
- jwrite32(jme, JME_SMI, SMI_OP_WRITE | SMI_OP_REQ |
- ((val << SMI_DATA_SHIFT) & SMI_DATA_MASK) |
- smi_phy_addr(phy) | smi_reg_addr(reg));
-
- wmb();
- for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) {
- udelay(20);
- if ((jread32(jme, JME_SMI) & SMI_OP_REQ) == 0)
- break;
- }
-
- if (i == 0)
- pr_err("phy(%d) write timeout : %d\n", phy, reg);
-}
-
-static inline void
-jme_reset_phy_processor(struct jme_adapter *jme)
-{
- u32 val;
-
- jme_mdio_write(jme->dev,
- jme->mii_if.phy_id,
- MII_ADVERTISE, ADVERTISE_ALL |
- ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
-
- if (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250)
- jme_mdio_write(jme->dev,
- jme->mii_if.phy_id,
- MII_CTRL1000,
- ADVERTISE_1000FULL | ADVERTISE_1000HALF);
-
- val = jme_mdio_read(jme->dev,
- jme->mii_if.phy_id,
- MII_BMCR);
-
- jme_mdio_write(jme->dev,
- jme->mii_if.phy_id,
- MII_BMCR, val | BMCR_RESET);
-}
-
-static void
-jme_setup_wakeup_frame(struct jme_adapter *jme,
- const u32 *mask, u32 crc, int fnr)
-{
- int i;
-
- /*
- * Setup CRC pattern
- */
- jwrite32(jme, JME_WFOI, WFOI_CRC_SEL | (fnr & WFOI_FRAME_SEL));
- wmb();
- jwrite32(jme, JME_WFODP, crc);
- wmb();
-
- /*
- * Setup Mask
- */
- for (i = 0 ; i < WAKEUP_FRAME_MASK_DWNR ; ++i) {
- jwrite32(jme, JME_WFOI,
- ((i << WFOI_MASK_SHIFT) & WFOI_MASK_SEL) |
- (fnr & WFOI_FRAME_SEL));
- wmb();
- jwrite32(jme, JME_WFODP, mask[i]);
- wmb();
- }
-}
-
-static inline void
-jme_mac_rxclk_off(struct jme_adapter *jme)
-{
- jme->reg_gpreg1 |= GPREG1_RXCLKOFF;
- jwrite32f(jme, JME_GPREG1, jme->reg_gpreg1);
-}
-
-static inline void
-jme_mac_rxclk_on(struct jme_adapter *jme)
-{
- jme->reg_gpreg1 &= ~GPREG1_RXCLKOFF;
- jwrite32f(jme, JME_GPREG1, jme->reg_gpreg1);
-}
-
-static inline void
-jme_mac_txclk_off(struct jme_adapter *jme)
-{
- jme->reg_ghc &= ~(GHC_TO_CLK_SRC | GHC_TXMAC_CLK_SRC);
- jwrite32f(jme, JME_GHC, jme->reg_ghc);
-}
-
-static inline void
-jme_mac_txclk_on(struct jme_adapter *jme)
-{
- u32 speed = jme->reg_ghc & GHC_SPEED;
- if (speed == GHC_SPEED_1000M)
- jme->reg_ghc |= GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY;
- else
- jme->reg_ghc |= GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE;
- jwrite32f(jme, JME_GHC, jme->reg_ghc);
-}
-
-static inline void
-jme_reset_ghc_speed(struct jme_adapter *jme)
-{
- jme->reg_ghc &= ~(GHC_SPEED | GHC_DPX);
- jwrite32f(jme, JME_GHC, jme->reg_ghc);
-}
-
-static inline void
-jme_reset_250A2_workaround(struct jme_adapter *jme)
-{
- jme->reg_gpreg1 &= ~(GPREG1_HALFMODEPATCH |
- GPREG1_RSSPATCH);
- jwrite32(jme, JME_GPREG1, jme->reg_gpreg1);
-}
-
-static inline void
-jme_assert_ghc_reset(struct jme_adapter *jme)
-{
- jme->reg_ghc |= GHC_SWRST;
- jwrite32f(jme, JME_GHC, jme->reg_ghc);
-}
-
-static inline void
-jme_clear_ghc_reset(struct jme_adapter *jme)
-{
- jme->reg_ghc &= ~GHC_SWRST;
- jwrite32f(jme, JME_GHC, jme->reg_ghc);
-}
-
-static inline void
-jme_reset_mac_processor(struct jme_adapter *jme)
-{
- static const u32 mask[WAKEUP_FRAME_MASK_DWNR] = {0, 0, 0, 0};
- u32 crc = 0xCDCDCDCD;
- u32 gpreg0;
- int i;
-
- jme_reset_ghc_speed(jme);
- jme_reset_250A2_workaround(jme);
-
- jme_mac_rxclk_on(jme);
- jme_mac_txclk_on(jme);
- udelay(1);
- jme_assert_ghc_reset(jme);
- udelay(1);
- jme_mac_rxclk_off(jme);
- jme_mac_txclk_off(jme);
- udelay(1);
- jme_clear_ghc_reset(jme);
- udelay(1);
- jme_mac_rxclk_on(jme);
- jme_mac_txclk_on(jme);
- udelay(1);
- jme_mac_rxclk_off(jme);
- jme_mac_txclk_off(jme);
-
- jwrite32(jme, JME_RXDBA_LO, 0x00000000);
- jwrite32(jme, JME_RXDBA_HI, 0x00000000);
- jwrite32(jme, JME_RXQDC, 0x00000000);
- jwrite32(jme, JME_RXNDA, 0x00000000);
- jwrite32(jme, JME_TXDBA_LO, 0x00000000);
- jwrite32(jme, JME_TXDBA_HI, 0x00000000);
- jwrite32(jme, JME_TXQDC, 0x00000000);
- jwrite32(jme, JME_TXNDA, 0x00000000);
-
- jwrite32(jme, JME_RXMCHT_LO, 0x00000000);
- jwrite32(jme, JME_RXMCHT_HI, 0x00000000);
- for (i = 0 ; i < WAKEUP_FRAME_NR ; ++i)
- jme_setup_wakeup_frame(jme, mask, crc, i);
- if (jme->fpgaver)
- gpreg0 = GPREG0_DEFAULT | GPREG0_LNKINTPOLL;
- else
- gpreg0 = GPREG0_DEFAULT;
- jwrite32(jme, JME_GPREG0, gpreg0);
-}
-
-static inline void
-jme_clear_pm(struct jme_adapter *jme)
-{
- jwrite32(jme, JME_PMCS, PMCS_STMASK | jme->reg_pmcs);
-}
-
-static int
-jme_reload_eeprom(struct jme_adapter *jme)
-{
- u32 val;
- int i;
-
- val = jread32(jme, JME_SMBCSR);
-
- if (val & SMBCSR_EEPROMD) {
- val |= SMBCSR_CNACK;
- jwrite32(jme, JME_SMBCSR, val);
- val |= SMBCSR_RELOAD;
- jwrite32(jme, JME_SMBCSR, val);
- mdelay(12);
-
- for (i = JME_EEPROM_RELOAD_TIMEOUT; i > 0; --i) {
- mdelay(1);
- if ((jread32(jme, JME_SMBCSR) & SMBCSR_RELOAD) == 0)
- break;
- }
-
- if (i == 0) {
- pr_err("eeprom reload timeout\n");
- return -EIO;
- }
- }
-
- return 0;
-}
-
-static void
-jme_load_macaddr(struct net_device *netdev)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- unsigned char macaddr[6];
- u32 val;
-
- spin_lock_bh(&jme->macaddr_lock);
- val = jread32(jme, JME_RXUMA_LO);
- macaddr[0] = (val >> 0) & 0xFF;
- macaddr[1] = (val >> 8) & 0xFF;
- macaddr[2] = (val >> 16) & 0xFF;
- macaddr[3] = (val >> 24) & 0xFF;
- val = jread32(jme, JME_RXUMA_HI);
- macaddr[4] = (val >> 0) & 0xFF;
- macaddr[5] = (val >> 8) & 0xFF;
- memcpy(netdev->dev_addr, macaddr, 6);
- spin_unlock_bh(&jme->macaddr_lock);
-}
-
-static inline void
-jme_set_rx_pcc(struct jme_adapter *jme, int p)
-{
- switch (p) {
- case PCC_OFF:
- jwrite32(jme, JME_PCCRX0,
- ((PCC_OFF_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
- ((PCC_OFF_CNT << PCCRX_SHIFT) & PCCRX_MASK));
- break;
- case PCC_P1:
- jwrite32(jme, JME_PCCRX0,
- ((PCC_P1_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
- ((PCC_P1_CNT << PCCRX_SHIFT) & PCCRX_MASK));
- break;
- case PCC_P2:
- jwrite32(jme, JME_PCCRX0,
- ((PCC_P2_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
- ((PCC_P2_CNT << PCCRX_SHIFT) & PCCRX_MASK));
- break;
- case PCC_P3:
- jwrite32(jme, JME_PCCRX0,
- ((PCC_P3_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
- ((PCC_P3_CNT << PCCRX_SHIFT) & PCCRX_MASK));
- break;
- default:
- break;
- }
- wmb();
-
- if (!(test_bit(JME_FLAG_POLL, &jme->flags)))
- netif_info(jme, rx_status, jme->dev, "Switched to PCC_P%d\n", p);
-}
-
-static void
-jme_start_irq(struct jme_adapter *jme)
-{
- register struct dynpcc_info *dpi = &(jme->dpi);
-
- jme_set_rx_pcc(jme, PCC_P1);
- dpi->cur = PCC_P1;
- dpi->attempt = PCC_P1;
- dpi->cnt = 0;
-
- jwrite32(jme, JME_PCCTX,
- ((PCC_TX_TO << PCCTXTO_SHIFT) & PCCTXTO_MASK) |
- ((PCC_TX_CNT << PCCTX_SHIFT) & PCCTX_MASK) |
- PCCTXQ0_EN
- );
-
- /*
- * Enable Interrupts
- */
- jwrite32(jme, JME_IENS, INTR_ENABLE);
-}
-
-static inline void
-jme_stop_irq(struct jme_adapter *jme)
-{
- /*
- * Disable Interrupts
- */
- jwrite32f(jme, JME_IENC, INTR_ENABLE);
-}
-
-static u32
-jme_linkstat_from_phy(struct jme_adapter *jme)
-{
- u32 phylink, bmsr;
-
- phylink = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 17);
- bmsr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMSR);
- if (bmsr & BMSR_ANCOMP)
- phylink |= PHY_LINK_AUTONEG_COMPLETE;
-
- return phylink;
-}
-
-static inline void
-jme_set_phyfifo_5level(struct jme_adapter *jme)
-{
- jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0004);
-}
-
-static inline void
-jme_set_phyfifo_8level(struct jme_adapter *jme)
-{
- jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0000);
-}
-
-static int
-jme_check_link(struct net_device *netdev, int testonly)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- u32 phylink, cnt = JME_SPDRSV_TIMEOUT, bmcr;
- char linkmsg[64];
- int rc = 0;
-
- linkmsg[0] = '\0';
-
- if (jme->fpgaver)
- phylink = jme_linkstat_from_phy(jme);
- else
- phylink = jread32(jme, JME_PHY_LINK);
-
- if (phylink & PHY_LINK_UP) {
- if (!(phylink & PHY_LINK_AUTONEG_COMPLETE)) {
- /*
- * If we did not enable AN
- * Speed/Duplex Info should be obtained from SMI
- */
- phylink = PHY_LINK_UP;
-
- bmcr = jme_mdio_read(jme->dev,
- jme->mii_if.phy_id,
- MII_BMCR);
-
- phylink |= ((bmcr & BMCR_SPEED1000) &&
- (bmcr & BMCR_SPEED100) == 0) ?
- PHY_LINK_SPEED_1000M :
- (bmcr & BMCR_SPEED100) ?
- PHY_LINK_SPEED_100M :
- PHY_LINK_SPEED_10M;
-
- phylink |= (bmcr & BMCR_FULLDPLX) ?
- PHY_LINK_DUPLEX : 0;
-
- strcat(linkmsg, "Forced: ");
- } else {
- /*
- * Keep polling for speed/duplex resolve complete
- */
- while (!(phylink & PHY_LINK_SPEEDDPU_RESOLVED) &&
- --cnt) {
-
- udelay(1);
-
- if (jme->fpgaver)
- phylink = jme_linkstat_from_phy(jme);
- else
- phylink = jread32(jme, JME_PHY_LINK);
- }
- if (!cnt)
- pr_err("Waiting speed resolve timeout\n");
-
- strcat(linkmsg, "ANed: ");
- }
-
- if (jme->phylink == phylink) {
- rc = 1;
- goto out;
- }
- if (testonly)
- goto out;
-
- jme->phylink = phylink;
-
- /*
- * The speed/duplex setting of jme->reg_ghc already cleared
- * by jme_reset_mac_processor()
- */
- switch (phylink & PHY_LINK_SPEED_MASK) {
- case PHY_LINK_SPEED_10M:
- jme->reg_ghc |= GHC_SPEED_10M;
- strcat(linkmsg, "10 Mbps, ");
- break;
- case PHY_LINK_SPEED_100M:
- jme->reg_ghc |= GHC_SPEED_100M;
- strcat(linkmsg, "100 Mbps, ");
- break;
- case PHY_LINK_SPEED_1000M:
- jme->reg_ghc |= GHC_SPEED_1000M;
- strcat(linkmsg, "1000 Mbps, ");
- break;
- default:
- break;
- }
-
- if (phylink & PHY_LINK_DUPLEX) {
- jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT);
- jwrite32(jme, JME_TXTRHD, TXTRHD_FULLDUPLEX);
- jme->reg_ghc |= GHC_DPX;
- } else {
- jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT |
- TXMCS_BACKOFF |
- TXMCS_CARRIERSENSE |
- TXMCS_COLLISION);
- jwrite32(jme, JME_TXTRHD, TXTRHD_HALFDUPLEX);
- }
-
- jwrite32(jme, JME_GHC, jme->reg_ghc);
-
- if (is_buggy250(jme->pdev->device, jme->chiprev)) {
- jme->reg_gpreg1 &= ~(GPREG1_HALFMODEPATCH |
- GPREG1_RSSPATCH);
- if (!(phylink & PHY_LINK_DUPLEX))
- jme->reg_gpreg1 |= GPREG1_HALFMODEPATCH;
- switch (phylink & PHY_LINK_SPEED_MASK) {
- case PHY_LINK_SPEED_10M:
- jme_set_phyfifo_8level(jme);
- jme->reg_gpreg1 |= GPREG1_RSSPATCH;
- break;
- case PHY_LINK_SPEED_100M:
- jme_set_phyfifo_5level(jme);
- jme->reg_gpreg1 |= GPREG1_RSSPATCH;
- break;
- case PHY_LINK_SPEED_1000M:
- jme_set_phyfifo_8level(jme);
- break;
- default:
- break;
- }
- }
- jwrite32(jme, JME_GPREG1, jme->reg_gpreg1);
-
- strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ?
- "Full-Duplex, " :
- "Half-Duplex, ");
- strcat(linkmsg, (phylink & PHY_LINK_MDI_STAT) ?
- "MDI-X" :
- "MDI");
- netif_info(jme, link, jme->dev, "Link is up at %s\n", linkmsg);
- netif_carrier_on(netdev);
- } else {
- if (testonly)
- goto out;
-
- netif_info(jme, link, jme->dev, "Link is down\n");
- jme->phylink = 0;
- netif_carrier_off(netdev);
- }
-
-out:
- return rc;
-}
-
-static int
-jme_setup_tx_resources(struct jme_adapter *jme)
-{
- struct jme_ring *txring = &(jme->txring[0]);
-
- txring->alloc = dma_alloc_coherent(&(jme->pdev->dev),
- TX_RING_ALLOC_SIZE(jme->tx_ring_size),
- &(txring->dmaalloc),
- GFP_ATOMIC);
-
- if (!txring->alloc)
- goto err_set_null;
-
- /*
- * 16 Bytes align
- */
- txring->desc = (void *)ALIGN((unsigned long)(txring->alloc),
- RING_DESC_ALIGN);
- txring->dma = ALIGN(txring->dmaalloc, RING_DESC_ALIGN);
- txring->next_to_use = 0;
- atomic_set(&txring->next_to_clean, 0);
- atomic_set(&txring->nr_free, jme->tx_ring_size);
-
- txring->bufinf = kmalloc(sizeof(struct jme_buffer_info) *
- jme->tx_ring_size, GFP_ATOMIC);
- if (unlikely(!(txring->bufinf)))
- goto err_free_txring;
-
- /*
- * Initialize Transmit Descriptors
- */
- memset(txring->alloc, 0, TX_RING_ALLOC_SIZE(jme->tx_ring_size));
- memset(txring->bufinf, 0,
- sizeof(struct jme_buffer_info) * jme->tx_ring_size);
-
- return 0;
-
-err_free_txring:
- dma_free_coherent(&(jme->pdev->dev),
- TX_RING_ALLOC_SIZE(jme->tx_ring_size),
- txring->alloc,
- txring->dmaalloc);
-
-err_set_null:
- txring->desc = NULL;
- txring->dmaalloc = 0;
- txring->dma = 0;
- txring->bufinf = NULL;
-
- return -ENOMEM;
-}
-
-static void
-jme_free_tx_resources(struct jme_adapter *jme)
-{
- int i;
- struct jme_ring *txring = &(jme->txring[0]);
- struct jme_buffer_info *txbi;
-
- if (txring->alloc) {
- if (txring->bufinf) {
- for (i = 0 ; i < jme->tx_ring_size ; ++i) {
- txbi = txring->bufinf + i;
- if (txbi->skb) {
- dev_kfree_skb(txbi->skb);
- txbi->skb = NULL;
- }
- txbi->mapping = 0;
- txbi->len = 0;
- txbi->nr_desc = 0;
- txbi->start_xmit = 0;
- }
- kfree(txring->bufinf);
- }
-
- dma_free_coherent(&(jme->pdev->dev),
- TX_RING_ALLOC_SIZE(jme->tx_ring_size),
- txring->alloc,
- txring->dmaalloc);
-
- txring->alloc = NULL;
- txring->desc = NULL;
- txring->dmaalloc = 0;
- txring->dma = 0;
- txring->bufinf = NULL;
- }
- txring->next_to_use = 0;
- atomic_set(&txring->next_to_clean, 0);
- atomic_set(&txring->nr_free, 0);
-}
-
-static inline void
-jme_enable_tx_engine(struct jme_adapter *jme)
-{
- /*
- * Select Queue 0
- */
- jwrite32(jme, JME_TXCS, TXCS_DEFAULT | TXCS_SELECT_QUEUE0);
- wmb();
-
- /*
- * Setup TX Queue 0 DMA Bass Address
- */
- jwrite32(jme, JME_TXDBA_LO, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL);
- jwrite32(jme, JME_TXDBA_HI, (__u64)(jme->txring[0].dma) >> 32);
- jwrite32(jme, JME_TXNDA, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL);
-
- /*
- * Setup TX Descptor Count
- */
- jwrite32(jme, JME_TXQDC, jme->tx_ring_size);
-
- /*
- * Enable TX Engine
- */
- wmb();
- jwrite32f(jme, JME_TXCS, jme->reg_txcs |
- TXCS_SELECT_QUEUE0 |
- TXCS_ENABLE);
-
- /*
- * Start clock for TX MAC Processor
- */
- jme_mac_txclk_on(jme);
-}
-
-static inline void
-jme_restart_tx_engine(struct jme_adapter *jme)
-{
- /*
- * Restart TX Engine
- */
- jwrite32(jme, JME_TXCS, jme->reg_txcs |
- TXCS_SELECT_QUEUE0 |
- TXCS_ENABLE);
-}
-
-static inline void
-jme_disable_tx_engine(struct jme_adapter *jme)
-{
- int i;
- u32 val;
-
- /*
- * Disable TX Engine
- */
- jwrite32(jme, JME_TXCS, jme->reg_txcs | TXCS_SELECT_QUEUE0);
- wmb();
-
- val = jread32(jme, JME_TXCS);
- for (i = JME_TX_DISABLE_TIMEOUT ; (val & TXCS_ENABLE) && i > 0 ; --i) {
- mdelay(1);
- val = jread32(jme, JME_TXCS);
- rmb();
- }
-
- if (!i)
- pr_err("Disable TX engine timeout\n");
-
- /*
- * Stop clock for TX MAC Processor
- */
- jme_mac_txclk_off(jme);
-}
-
-static void
-jme_set_clean_rxdesc(struct jme_adapter *jme, int i)
-{
- struct jme_ring *rxring = &(jme->rxring[0]);
- register struct rxdesc *rxdesc = rxring->desc;
- struct jme_buffer_info *rxbi = rxring->bufinf;
- rxdesc += i;
- rxbi += i;
-
- rxdesc->dw[0] = 0;
- rxdesc->dw[1] = 0;
- rxdesc->desc1.bufaddrh = cpu_to_le32((__u64)rxbi->mapping >> 32);
- rxdesc->desc1.bufaddrl = cpu_to_le32(
- (__u64)rxbi->mapping & 0xFFFFFFFFUL);
- rxdesc->desc1.datalen = cpu_to_le16(rxbi->len);
- if (jme->dev->features & NETIF_F_HIGHDMA)
- rxdesc->desc1.flags = RXFLAG_64BIT;
- wmb();
- rxdesc->desc1.flags |= RXFLAG_OWN | RXFLAG_INT;
-}
-
-static int
-jme_make_new_rx_buf(struct jme_adapter *jme, int i)
-{
- struct jme_ring *rxring = &(jme->rxring[0]);
- struct jme_buffer_info *rxbi = rxring->bufinf + i;
- struct sk_buff *skb;
- dma_addr_t mapping;
-
- skb = netdev_alloc_skb(jme->dev,
- jme->dev->mtu + RX_EXTRA_LEN);
- if (unlikely(!skb))
- return -ENOMEM;
-
- mapping = pci_map_page(jme->pdev, virt_to_page(skb->data),
- offset_in_page(skb->data), skb_tailroom(skb),
- PCI_DMA_FROMDEVICE);
- if (unlikely(pci_dma_mapping_error(jme->pdev, mapping))) {
- dev_kfree_skb(skb);
- return -ENOMEM;
- }
-
- if (likely(rxbi->mapping))
- pci_unmap_page(jme->pdev, rxbi->mapping,
- rxbi->len, PCI_DMA_FROMDEVICE);
-
- rxbi->skb = skb;
- rxbi->len = skb_tailroom(skb);
- rxbi->mapping = mapping;
- return 0;
-}
-
-static void
-jme_free_rx_buf(struct jme_adapter *jme, int i)
-{
- struct jme_ring *rxring = &(jme->rxring[0]);
- struct jme_buffer_info *rxbi = rxring->bufinf;
- rxbi += i;
-
- if (rxbi->skb) {
- pci_unmap_page(jme->pdev,
- rxbi->mapping,
- rxbi->len,
- PCI_DMA_FROMDEVICE);
- dev_kfree_skb(rxbi->skb);
- rxbi->skb = NULL;
- rxbi->mapping = 0;
- rxbi->len = 0;
- }
-}
-
-static void
-jme_free_rx_resources(struct jme_adapter *jme)
-{
- int i;
- struct jme_ring *rxring = &(jme->rxring[0]);
-
- if (rxring->alloc) {
- if (rxring->bufinf) {
- for (i = 0 ; i < jme->rx_ring_size ; ++i)
- jme_free_rx_buf(jme, i);
- kfree(rxring->bufinf);
- }
-
- dma_free_coherent(&(jme->pdev->dev),
- RX_RING_ALLOC_SIZE(jme->rx_ring_size),
- rxring->alloc,
- rxring->dmaalloc);
- rxring->alloc = NULL;
- rxring->desc = NULL;
- rxring->dmaalloc = 0;
- rxring->dma = 0;
- rxring->bufinf = NULL;
- }
- rxring->next_to_use = 0;
- atomic_set(&rxring->next_to_clean, 0);
-}
-
-static int
-jme_setup_rx_resources(struct jme_adapter *jme)
-{
- int i;
- struct jme_ring *rxring = &(jme->rxring[0]);
-
- rxring->alloc = dma_alloc_coherent(&(jme->pdev->dev),
- RX_RING_ALLOC_SIZE(jme->rx_ring_size),
- &(rxring->dmaalloc),
- GFP_ATOMIC);
- if (!rxring->alloc)
- goto err_set_null;
-
- /*
- * 16 Bytes align
- */
- rxring->desc = (void *)ALIGN((unsigned long)(rxring->alloc),
- RING_DESC_ALIGN);
- rxring->dma = ALIGN(rxring->dmaalloc, RING_DESC_ALIGN);
- rxring->next_to_use = 0;
- atomic_set(&rxring->next_to_clean, 0);
-
- rxring->bufinf = kmalloc(sizeof(struct jme_buffer_info) *
- jme->rx_ring_size, GFP_ATOMIC);
- if (unlikely(!(rxring->bufinf)))
- goto err_free_rxring;
-
- /*
- * Initiallize Receive Descriptors
- */
- memset(rxring->bufinf, 0,
- sizeof(struct jme_buffer_info) * jme->rx_ring_size);
- for (i = 0 ; i < jme->rx_ring_size ; ++i) {
- if (unlikely(jme_make_new_rx_buf(jme, i))) {
- jme_free_rx_resources(jme);
- return -ENOMEM;
- }
-
- jme_set_clean_rxdesc(jme, i);
- }
-
- return 0;
-
-err_free_rxring:
- dma_free_coherent(&(jme->pdev->dev),
- RX_RING_ALLOC_SIZE(jme->rx_ring_size),
- rxring->alloc,
- rxring->dmaalloc);
-err_set_null:
- rxring->desc = NULL;
- rxring->dmaalloc = 0;
- rxring->dma = 0;
- rxring->bufinf = NULL;
-
- return -ENOMEM;
-}
-
-static inline void
-jme_enable_rx_engine(struct jme_adapter *jme)
-{
- /*
- * Select Queue 0
- */
- jwrite32(jme, JME_RXCS, jme->reg_rxcs |
- RXCS_QUEUESEL_Q0);
- wmb();
-
- /*
- * Setup RX DMA Bass Address
- */
- jwrite32(jme, JME_RXDBA_LO, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL);
- jwrite32(jme, JME_RXDBA_HI, (__u64)(jme->rxring[0].dma) >> 32);
- jwrite32(jme, JME_RXNDA, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL);
-
- /*
- * Setup RX Descriptor Count
- */
- jwrite32(jme, JME_RXQDC, jme->rx_ring_size);
-
- /*
- * Setup Unicast Filter
- */
- jme_set_unicastaddr(jme->dev);
- jme_set_multi(jme->dev);
-
- /*
- * Enable RX Engine
- */
- wmb();
- jwrite32f(jme, JME_RXCS, jme->reg_rxcs |
- RXCS_QUEUESEL_Q0 |
- RXCS_ENABLE |
- RXCS_QST);
-
- /*
- * Start clock for RX MAC Processor
- */
- jme_mac_rxclk_on(jme);
-}
-
-static inline void
-jme_restart_rx_engine(struct jme_adapter *jme)
-{
- /*
- * Start RX Engine
- */
- jwrite32(jme, JME_RXCS, jme->reg_rxcs |
- RXCS_QUEUESEL_Q0 |
- RXCS_ENABLE |
- RXCS_QST);
-}
-
-static inline void
-jme_disable_rx_engine(struct jme_adapter *jme)
-{
- int i;
- u32 val;
-
- /*
- * Disable RX Engine
- */
- jwrite32(jme, JME_RXCS, jme->reg_rxcs);
- wmb();
-
- val = jread32(jme, JME_RXCS);
- for (i = JME_RX_DISABLE_TIMEOUT ; (val & RXCS_ENABLE) && i > 0 ; --i) {
- mdelay(1);
- val = jread32(jme, JME_RXCS);
- rmb();
- }
-
- if (!i)
- pr_err("Disable RX engine timeout\n");
-
- /*
- * Stop clock for RX MAC Processor
- */
- jme_mac_rxclk_off(jme);
-}
-
-static u16
-jme_udpsum(struct sk_buff *skb)
-{
- u16 csum = 0xFFFFu;
-
- if (skb->len < (ETH_HLEN + sizeof(struct iphdr)))
- return csum;
- if (skb->protocol != htons(ETH_P_IP))
- return csum;
- skb_set_network_header(skb, ETH_HLEN);
- if ((ip_hdr(skb)->protocol != IPPROTO_UDP) ||
- (skb->len < (ETH_HLEN +
- (ip_hdr(skb)->ihl << 2) +
- sizeof(struct udphdr)))) {
- skb_reset_network_header(skb);
- return csum;
- }
- skb_set_transport_header(skb,
- ETH_HLEN + (ip_hdr(skb)->ihl << 2));
- csum = udp_hdr(skb)->check;
- skb_reset_transport_header(skb);
- skb_reset_network_header(skb);
-
- return csum;
-}
-
-static int
-jme_rxsum_ok(struct jme_adapter *jme, u16 flags, struct sk_buff *skb)
-{
- if (!(flags & (RXWBFLAG_TCPON | RXWBFLAG_UDPON | RXWBFLAG_IPV4)))
- return false;
-
- if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_TCPON | RXWBFLAG_TCPCS))
- == RXWBFLAG_TCPON)) {
- if (flags & RXWBFLAG_IPV4)
- netif_err(jme, rx_err, jme->dev, "TCP Checksum error\n");
- return false;
- }
-
- if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_UDPON | RXWBFLAG_UDPCS))
- == RXWBFLAG_UDPON) && jme_udpsum(skb)) {
- if (flags & RXWBFLAG_IPV4)
- netif_err(jme, rx_err, jme->dev, "UDP Checksum error\n");
- return false;
- }
-
- if (unlikely((flags & (RXWBFLAG_IPV4 | RXWBFLAG_IPCS))
- == RXWBFLAG_IPV4)) {
- netif_err(jme, rx_err, jme->dev, "IPv4 Checksum error\n");
- return false;
- }
-
- return true;
-}
-
-static void
-jme_alloc_and_feed_skb(struct jme_adapter *jme, int idx)
-{
- struct jme_ring *rxring = &(jme->rxring[0]);
- struct rxdesc *rxdesc = rxring->desc;
- struct jme_buffer_info *rxbi = rxring->bufinf;
- struct sk_buff *skb;
- int framesize;
-
- rxdesc += idx;
- rxbi += idx;
-
- skb = rxbi->skb;
- pci_dma_sync_single_for_cpu(jme->pdev,
- rxbi->mapping,
- rxbi->len,
- PCI_DMA_FROMDEVICE);
-
- if (unlikely(jme_make_new_rx_buf(jme, idx))) {
- pci_dma_sync_single_for_device(jme->pdev,
- rxbi->mapping,
- rxbi->len,
- PCI_DMA_FROMDEVICE);
-
- ++(NET_STAT(jme).rx_dropped);
- } else {
- framesize = le16_to_cpu(rxdesc->descwb.framesize)
- - RX_PREPAD_SIZE;
-
- skb_reserve(skb, RX_PREPAD_SIZE);
- skb_put(skb, framesize);
- skb->protocol = eth_type_trans(skb, jme->dev);
-
- if (jme_rxsum_ok(jme, le16_to_cpu(rxdesc->descwb.flags), skb))
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- else
- skb_checksum_none_assert(skb);
-
- if (rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_TAGON)) {
- u16 vid = le16_to_cpu(rxdesc->descwb.vlan);
-
- __vlan_hwaccel_put_tag(skb, vid);
- NET_STAT(jme).rx_bytes += 4;
- }
- jme->jme_rx(skb);
-
- if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_DEST)) ==
- cpu_to_le16(RXWBFLAG_DEST_MUL))
- ++(NET_STAT(jme).multicast);
-
- NET_STAT(jme).rx_bytes += framesize;
- ++(NET_STAT(jme).rx_packets);
- }
-
- jme_set_clean_rxdesc(jme, idx);
-
-}
-
-static int
-jme_process_receive(struct jme_adapter *jme, int limit)
-{
- struct jme_ring *rxring = &(jme->rxring[0]);
- struct rxdesc *rxdesc = rxring->desc;
- int i, j, ccnt, desccnt, mask = jme->rx_ring_mask;
-
- if (unlikely(!atomic_dec_and_test(&jme->rx_cleaning)))
- goto out_inc;
-
- if (unlikely(atomic_read(&jme->link_changing) != 1))
- goto out_inc;
-
- if (unlikely(!netif_carrier_ok(jme->dev)))
- goto out_inc;
-
- i = atomic_read(&rxring->next_to_clean);
- while (limit > 0) {
- rxdesc = rxring->desc;
- rxdesc += i;
-
- if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_OWN)) ||
- !(rxdesc->descwb.desccnt & RXWBDCNT_WBCPL))
- goto out;
- --limit;
-
- rmb();
- desccnt = rxdesc->descwb.desccnt & RXWBDCNT_DCNT;
-
- if (unlikely(desccnt > 1 ||
- rxdesc->descwb.errstat & RXWBERR_ALLERR)) {
-
- if (rxdesc->descwb.errstat & RXWBERR_CRCERR)
- ++(NET_STAT(jme).rx_crc_errors);
- else if (rxdesc->descwb.errstat & RXWBERR_OVERUN)
- ++(NET_STAT(jme).rx_fifo_errors);
- else
- ++(NET_STAT(jme).rx_errors);
-
- if (desccnt > 1)
- limit -= desccnt - 1;
-
- for (j = i, ccnt = desccnt ; ccnt-- ; ) {
- jme_set_clean_rxdesc(jme, j);
- j = (j + 1) & (mask);
- }
-
- } else {
- jme_alloc_and_feed_skb(jme, i);
- }
-
- i = (i + desccnt) & (mask);
- }
-
-out:
- atomic_set(&rxring->next_to_clean, i);
-
-out_inc:
- atomic_inc(&jme->rx_cleaning);
-
- return limit > 0 ? limit : 0;
-
-}
-
-static void
-jme_attempt_pcc(struct dynpcc_info *dpi, int atmp)
-{
- if (likely(atmp == dpi->cur)) {
- dpi->cnt = 0;
- return;
- }
-
- if (dpi->attempt == atmp) {
- ++(dpi->cnt);
- } else {
- dpi->attempt = atmp;
- dpi->cnt = 0;
- }
-
-}
-
-static void
-jme_dynamic_pcc(struct jme_adapter *jme)
-{
- register struct dynpcc_info *dpi = &(jme->dpi);
-
- if ((NET_STAT(jme).rx_bytes - dpi->last_bytes) > PCC_P3_THRESHOLD)
- jme_attempt_pcc(dpi, PCC_P3);
- else if ((NET_STAT(jme).rx_packets - dpi->last_pkts) > PCC_P2_THRESHOLD ||
- dpi->intr_cnt > PCC_INTR_THRESHOLD)
- jme_attempt_pcc(dpi, PCC_P2);
- else
- jme_attempt_pcc(dpi, PCC_P1);
-
- if (unlikely(dpi->attempt != dpi->cur && dpi->cnt > 5)) {
- if (dpi->attempt < dpi->cur)
- tasklet_schedule(&jme->rxclean_task);
- jme_set_rx_pcc(jme, dpi->attempt);
- dpi->cur = dpi->attempt;
- dpi->cnt = 0;
- }
-}
-
-static void
-jme_start_pcc_timer(struct jme_adapter *jme)
-{
- struct dynpcc_info *dpi = &(jme->dpi);
- dpi->last_bytes = NET_STAT(jme).rx_bytes;
- dpi->last_pkts = NET_STAT(jme).rx_packets;
- dpi->intr_cnt = 0;
- jwrite32(jme, JME_TMCSR,
- TMCSR_EN | ((0xFFFFFF - PCC_INTERVAL_US) & TMCSR_CNT));
-}
-
-static inline void
-jme_stop_pcc_timer(struct jme_adapter *jme)
-{
- jwrite32(jme, JME_TMCSR, 0);
-}
-
-static void
-jme_shutdown_nic(struct jme_adapter *jme)
-{
- u32 phylink;
-
- phylink = jme_linkstat_from_phy(jme);
-
- if (!(phylink & PHY_LINK_UP)) {
- /*
- * Disable all interrupt before issue timer
- */
- jme_stop_irq(jme);
- jwrite32(jme, JME_TIMER2, TMCSR_EN | 0xFFFFFE);
- }
-}
-
-static void
-jme_pcc_tasklet(unsigned long arg)
-{
- struct jme_adapter *jme = (struct jme_adapter *)arg;
- struct net_device *netdev = jme->dev;
-
- if (unlikely(test_bit(JME_FLAG_SHUTDOWN, &jme->flags))) {
- jme_shutdown_nic(jme);
- return;
- }
-
- if (unlikely(!netif_carrier_ok(netdev) ||
- (atomic_read(&jme->link_changing) != 1)
- )) {
- jme_stop_pcc_timer(jme);
- return;
- }
-
- if (!(test_bit(JME_FLAG_POLL, &jme->flags)))
- jme_dynamic_pcc(jme);
-
- jme_start_pcc_timer(jme);
-}
-
-static inline void
-jme_polling_mode(struct jme_adapter *jme)
-{
- jme_set_rx_pcc(jme, PCC_OFF);
-}
-
-static inline void
-jme_interrupt_mode(struct jme_adapter *jme)
-{
- jme_set_rx_pcc(jme, PCC_P1);
-}
-
-static inline int
-jme_pseudo_hotplug_enabled(struct jme_adapter *jme)
-{
- u32 apmc;
- apmc = jread32(jme, JME_APMC);
- return apmc & JME_APMC_PSEUDO_HP_EN;
-}
-
-static void
-jme_start_shutdown_timer(struct jme_adapter *jme)
-{
- u32 apmc;
-
- apmc = jread32(jme, JME_APMC) | JME_APMC_PCIE_SD_EN;
- apmc &= ~JME_APMC_EPIEN_CTRL;
- if (!no_extplug) {
- jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_EN);
- wmb();
- }
- jwrite32f(jme, JME_APMC, apmc);
-
- jwrite32f(jme, JME_TIMER2, 0);
- set_bit(JME_FLAG_SHUTDOWN, &jme->flags);
- jwrite32(jme, JME_TMCSR,
- TMCSR_EN | ((0xFFFFFF - APMC_PHP_SHUTDOWN_DELAY) & TMCSR_CNT));
-}
-
-static void
-jme_stop_shutdown_timer(struct jme_adapter *jme)
-{
- u32 apmc;
-
- jwrite32f(jme, JME_TMCSR, 0);
- jwrite32f(jme, JME_TIMER2, 0);
- clear_bit(JME_FLAG_SHUTDOWN, &jme->flags);
-
- apmc = jread32(jme, JME_APMC);
- apmc &= ~(JME_APMC_PCIE_SD_EN | JME_APMC_EPIEN_CTRL);
- jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_DIS);
- wmb();
- jwrite32f(jme, JME_APMC, apmc);
-}
-
-static void
-jme_link_change_tasklet(unsigned long arg)
-{
- struct jme_adapter *jme = (struct jme_adapter *)arg;
- struct net_device *netdev = jme->dev;
- int rc;
-
- while (!atomic_dec_and_test(&jme->link_changing)) {
- atomic_inc(&jme->link_changing);
- netif_info(jme, intr, jme->dev, "Get link change lock failed\n");
- while (atomic_read(&jme->link_changing) != 1)
- netif_info(jme, intr, jme->dev, "Waiting link change lock\n");
- }
-
- if (jme_check_link(netdev, 1) && jme->old_mtu == netdev->mtu)
- goto out;
-
- jme->old_mtu = netdev->mtu;
- netif_stop_queue(netdev);
- if (jme_pseudo_hotplug_enabled(jme))
- jme_stop_shutdown_timer(jme);
-
- jme_stop_pcc_timer(jme);
- tasklet_disable(&jme->txclean_task);
- tasklet_disable(&jme->rxclean_task);
- tasklet_disable(&jme->rxempty_task);
-
- if (netif_carrier_ok(netdev)) {
- jme_disable_rx_engine(jme);
- jme_disable_tx_engine(jme);
- jme_reset_mac_processor(jme);
- jme_free_rx_resources(jme);
- jme_free_tx_resources(jme);
-
- if (test_bit(JME_FLAG_POLL, &jme->flags))
- jme_polling_mode(jme);
-
- netif_carrier_off(netdev);
- }
-
- jme_check_link(netdev, 0);
- if (netif_carrier_ok(netdev)) {
- rc = jme_setup_rx_resources(jme);
- if (rc) {
- pr_err("Allocating resources for RX error, Device STOPPED!\n");
- goto out_enable_tasklet;
- }
-
- rc = jme_setup_tx_resources(jme);
- if (rc) {
- pr_err("Allocating resources for TX error, Device STOPPED!\n");
- goto err_out_free_rx_resources;
- }
-
- jme_enable_rx_engine(jme);
- jme_enable_tx_engine(jme);
-
- netif_start_queue(netdev);
-
- if (test_bit(JME_FLAG_POLL, &jme->flags))
- jme_interrupt_mode(jme);
-
- jme_start_pcc_timer(jme);
- } else if (jme_pseudo_hotplug_enabled(jme)) {
- jme_start_shutdown_timer(jme);
- }
-
- goto out_enable_tasklet;
-
-err_out_free_rx_resources:
- jme_free_rx_resources(jme);
-out_enable_tasklet:
- tasklet_enable(&jme->txclean_task);
- tasklet_hi_enable(&jme->rxclean_task);
- tasklet_hi_enable(&jme->rxempty_task);
-out:
- atomic_inc(&jme->link_changing);
-}
-
-static void
-jme_rx_clean_tasklet(unsigned long arg)
-{
- struct jme_adapter *jme = (struct jme_adapter *)arg;
- struct dynpcc_info *dpi = &(jme->dpi);
-
- jme_process_receive(jme, jme->rx_ring_size);
- ++(dpi->intr_cnt);
-
-}
-
-static int
-jme_poll(JME_NAPI_HOLDER(holder), JME_NAPI_WEIGHT(budget))
-{
- struct jme_adapter *jme = jme_napi_priv(holder);
- int rest;
-
- rest = jme_process_receive(jme, JME_NAPI_WEIGHT_VAL(budget));
-
- while (atomic_read(&jme->rx_empty) > 0) {
- atomic_dec(&jme->rx_empty);
- ++(NET_STAT(jme).rx_dropped);
- jme_restart_rx_engine(jme);
- }
- atomic_inc(&jme->rx_empty);
-
- if (rest) {
- JME_RX_COMPLETE(netdev, holder);
- jme_interrupt_mode(jme);
- }
-
- JME_NAPI_WEIGHT_SET(budget, rest);
- return JME_NAPI_WEIGHT_VAL(budget) - rest;
-}
-
-static void
-jme_rx_empty_tasklet(unsigned long arg)
-{
- struct jme_adapter *jme = (struct jme_adapter *)arg;
-
- if (unlikely(atomic_read(&jme->link_changing) != 1))
- return;
-
- if (unlikely(!netif_carrier_ok(jme->dev)))
- return;
-
- netif_info(jme, rx_status, jme->dev, "RX Queue Full!\n");
-
- jme_rx_clean_tasklet(arg);
-
- while (atomic_read(&jme->rx_empty) > 0) {
- atomic_dec(&jme->rx_empty);
- ++(NET_STAT(jme).rx_dropped);
- jme_restart_rx_engine(jme);
- }
- atomic_inc(&jme->rx_empty);
-}
-
-static void
-jme_wake_queue_if_stopped(struct jme_adapter *jme)
-{
- struct jme_ring *txring = &(jme->txring[0]);
-
- smp_wmb();
- if (unlikely(netif_queue_stopped(jme->dev) &&
- atomic_read(&txring->nr_free) >= (jme->tx_wake_threshold))) {
- netif_info(jme, tx_done, jme->dev, "TX Queue Waked\n");
- netif_wake_queue(jme->dev);
- }
-
-}
-
-static void
-jme_tx_clean_tasklet(unsigned long arg)
-{
- struct jme_adapter *jme = (struct jme_adapter *)arg;
- struct jme_ring *txring = &(jme->txring[0]);
- struct txdesc *txdesc = txring->desc;
- struct jme_buffer_info *txbi = txring->bufinf, *ctxbi, *ttxbi;
- int i, j, cnt = 0, max, err, mask;
-
- tx_dbg(jme, "Into txclean\n");
-
- if (unlikely(!atomic_dec_and_test(&jme->tx_cleaning)))
- goto out;
-
- if (unlikely(atomic_read(&jme->link_changing) != 1))
- goto out;
-
- if (unlikely(!netif_carrier_ok(jme->dev)))
- goto out;
-
- max = jme->tx_ring_size - atomic_read(&txring->nr_free);
- mask = jme->tx_ring_mask;
-
- for (i = atomic_read(&txring->next_to_clean) ; cnt < max ; ) {
-
- ctxbi = txbi + i;
-
- if (likely(ctxbi->skb &&
- !(txdesc[i].descwb.flags & TXWBFLAG_OWN))) {
-
- tx_dbg(jme, "txclean: %d+%d@%lu\n",
- i, ctxbi->nr_desc, jiffies);
-
- err = txdesc[i].descwb.flags & TXWBFLAG_ALLERR;
-
- for (j = 1 ; j < ctxbi->nr_desc ; ++j) {
- ttxbi = txbi + ((i + j) & (mask));
- txdesc[(i + j) & (mask)].dw[0] = 0;
-
- pci_unmap_page(jme->pdev,
- ttxbi->mapping,
- ttxbi->len,
- PCI_DMA_TODEVICE);
-
- ttxbi->mapping = 0;
- ttxbi->len = 0;
- }
-
- dev_kfree_skb(ctxbi->skb);
-
- cnt += ctxbi->nr_desc;
-
- if (unlikely(err)) {
- ++(NET_STAT(jme).tx_carrier_errors);
- } else {
- ++(NET_STAT(jme).tx_packets);
- NET_STAT(jme).tx_bytes += ctxbi->len;
- }
-
- ctxbi->skb = NULL;
- ctxbi->len = 0;
- ctxbi->start_xmit = 0;
-
- } else {
- break;
- }
-
- i = (i + ctxbi->nr_desc) & mask;
-
- ctxbi->nr_desc = 0;
- }
-
- tx_dbg(jme, "txclean: done %d@%lu\n", i, jiffies);
- atomic_set(&txring->next_to_clean, i);
- atomic_add(cnt, &txring->nr_free);
-
- jme_wake_queue_if_stopped(jme);
-
-out:
- atomic_inc(&jme->tx_cleaning);
-}
-
-static void
-jme_intr_msi(struct jme_adapter *jme, u32 intrstat)
-{
- /*
- * Disable interrupt
- */
- jwrite32f(jme, JME_IENC, INTR_ENABLE);
-
- if (intrstat & (INTR_LINKCH | INTR_SWINTR)) {
- /*
- * Link change event is critical
- * all other events are ignored
- */
- jwrite32(jme, JME_IEVE, intrstat);
- tasklet_schedule(&jme->linkch_task);
- goto out_reenable;
- }
-
- if (intrstat & INTR_TMINTR) {
- jwrite32(jme, JME_IEVE, INTR_TMINTR);
- tasklet_schedule(&jme->pcc_task);
- }
-
- if (intrstat & (INTR_PCCTXTO | INTR_PCCTX)) {
- jwrite32(jme, JME_IEVE, INTR_PCCTXTO | INTR_PCCTX | INTR_TX0);
- tasklet_schedule(&jme->txclean_task);
- }
-
- if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) {
- jwrite32(jme, JME_IEVE, (intrstat & (INTR_PCCRX0TO |
- INTR_PCCRX0 |
- INTR_RX0EMP)) |
- INTR_RX0);
- }
-
- if (test_bit(JME_FLAG_POLL, &jme->flags)) {
- if (intrstat & INTR_RX0EMP)
- atomic_inc(&jme->rx_empty);
-
- if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) {
- if (likely(JME_RX_SCHEDULE_PREP(jme))) {
- jme_polling_mode(jme);
- JME_RX_SCHEDULE(jme);
- }
- }
- } else {
- if (intrstat & INTR_RX0EMP) {
- atomic_inc(&jme->rx_empty);
- tasklet_hi_schedule(&jme->rxempty_task);
- } else if (intrstat & (INTR_PCCRX0TO | INTR_PCCRX0)) {
- tasklet_hi_schedule(&jme->rxclean_task);
- }
- }
-
-out_reenable:
- /*
- * Re-enable interrupt
- */
- jwrite32f(jme, JME_IENS, INTR_ENABLE);
-}
-
-static irqreturn_t
-jme_intr(int irq, void *dev_id)
-{
- struct net_device *netdev = dev_id;
- struct jme_adapter *jme = netdev_priv(netdev);
- u32 intrstat;
-
- intrstat = jread32(jme, JME_IEVE);
-
- /*
- * Check if it's really an interrupt for us
- */
- if (unlikely((intrstat & INTR_ENABLE) == 0))
- return IRQ_NONE;
-
- /*
- * Check if the device still exist
- */
- if (unlikely(intrstat == ~((typeof(intrstat))0)))
- return IRQ_NONE;
-
- jme_intr_msi(jme, intrstat);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t
-jme_msi(int irq, void *dev_id)
-{
- struct net_device *netdev = dev_id;
- struct jme_adapter *jme = netdev_priv(netdev);
- u32 intrstat;
-
- intrstat = jread32(jme, JME_IEVE);
-
- jme_intr_msi(jme, intrstat);
-
- return IRQ_HANDLED;
-}
-
-static void
-jme_reset_link(struct jme_adapter *jme)
-{
- jwrite32(jme, JME_TMCSR, TMCSR_SWIT);
-}
-
-static void
-jme_restart_an(struct jme_adapter *jme)
-{
- u32 bmcr;
-
- spin_lock_bh(&jme->phy_lock);
- bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR);
- bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
- jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr);
- spin_unlock_bh(&jme->phy_lock);
-}
-
-static int
-jme_request_irq(struct jme_adapter *jme)
-{
- int rc;
- struct net_device *netdev = jme->dev;
- irq_handler_t handler = jme_intr;
- int irq_flags = IRQF_SHARED;
-
- if (!pci_enable_msi(jme->pdev)) {
- set_bit(JME_FLAG_MSI, &jme->flags);
- handler = jme_msi;
- irq_flags = 0;
- }
-
- rc = request_irq(jme->pdev->irq, handler, irq_flags, netdev->name,
- netdev);
- if (rc) {
- netdev_err(netdev,
- "Unable to request %s interrupt (return: %d)\n",
- test_bit(JME_FLAG_MSI, &jme->flags) ? "MSI" : "INTx",
- rc);
-
- if (test_bit(JME_FLAG_MSI, &jme->flags)) {
- pci_disable_msi(jme->pdev);
- clear_bit(JME_FLAG_MSI, &jme->flags);
- }
- } else {
- netdev->irq = jme->pdev->irq;
- }
-
- return rc;
-}
-
-static void
-jme_free_irq(struct jme_adapter *jme)
-{
- free_irq(jme->pdev->irq, jme->dev);
- if (test_bit(JME_FLAG_MSI, &jme->flags)) {
- pci_disable_msi(jme->pdev);
- clear_bit(JME_FLAG_MSI, &jme->flags);
- jme->dev->irq = jme->pdev->irq;
- }
-}
-
-static inline void
-jme_new_phy_on(struct jme_adapter *jme)
-{
- u32 reg;
-
- reg = jread32(jme, JME_PHY_PWR);
- reg &= ~(PHY_PWR_DWN1SEL | PHY_PWR_DWN1SW |
- PHY_PWR_DWN2 | PHY_PWR_CLKSEL);
- jwrite32(jme, JME_PHY_PWR, reg);
-
- pci_read_config_dword(jme->pdev, PCI_PRIV_PE1, &reg);
- reg &= ~PE1_GPREG0_PBG;
- reg |= PE1_GPREG0_ENBG;
- pci_write_config_dword(jme->pdev, PCI_PRIV_PE1, reg);
-}
-
-static inline void
-jme_new_phy_off(struct jme_adapter *jme)
-{
- u32 reg;
-
- reg = jread32(jme, JME_PHY_PWR);
- reg |= PHY_PWR_DWN1SEL | PHY_PWR_DWN1SW |
- PHY_PWR_DWN2 | PHY_PWR_CLKSEL;
- jwrite32(jme, JME_PHY_PWR, reg);
-
- pci_read_config_dword(jme->pdev, PCI_PRIV_PE1, &reg);
- reg &= ~PE1_GPREG0_PBG;
- reg |= PE1_GPREG0_PDD3COLD;
- pci_write_config_dword(jme->pdev, PCI_PRIV_PE1, reg);
-}
-
-static inline void
-jme_phy_on(struct jme_adapter *jme)
-{
- u32 bmcr;
-
- bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR);
- bmcr &= ~BMCR_PDOWN;
- jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr);
-
- if (new_phy_power_ctrl(jme->chip_main_rev))
- jme_new_phy_on(jme);
-}
-
-static inline void
-jme_phy_off(struct jme_adapter *jme)
-{
- u32 bmcr;
-
- bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR);
- bmcr |= BMCR_PDOWN;
- jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr);
-
- if (new_phy_power_ctrl(jme->chip_main_rev))
- jme_new_phy_off(jme);
-}
-
-static int
-jme_open(struct net_device *netdev)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- int rc;
-
- jme_clear_pm(jme);
- JME_NAPI_ENABLE(jme);
-
- tasklet_enable(&jme->linkch_task);
- tasklet_enable(&jme->txclean_task);
- tasklet_hi_enable(&jme->rxclean_task);
- tasklet_hi_enable(&jme->rxempty_task);
-
- rc = jme_request_irq(jme);
- if (rc)
- goto err_out;
-
- jme_start_irq(jme);
-
- jme_phy_on(jme);
- if (test_bit(JME_FLAG_SSET, &jme->flags))
- jme_set_settings(netdev, &jme->old_ecmd);
- else
- jme_reset_phy_processor(jme);
-
- jme_reset_link(jme);
-
- return 0;
-
-err_out:
- netif_stop_queue(netdev);
- netif_carrier_off(netdev);
- return rc;
-}
-
-static void
-jme_set_100m_half(struct jme_adapter *jme)
-{
- u32 bmcr, tmp;
-
- jme_phy_on(jme);
- bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR);
- tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 |
- BMCR_SPEED1000 | BMCR_FULLDPLX);
- tmp |= BMCR_SPEED100;
-
- if (bmcr != tmp)
- jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, tmp);
-
- if (jme->fpgaver)
- jwrite32(jme, JME_GHC, GHC_SPEED_100M | GHC_LINK_POLL);
- else
- jwrite32(jme, JME_GHC, GHC_SPEED_100M);
-}
-
-#define JME_WAIT_LINK_TIME 2000 /* 2000ms */
-static void
-jme_wait_link(struct jme_adapter *jme)
-{
- u32 phylink, to = JME_WAIT_LINK_TIME;
-
- mdelay(1000);
- phylink = jme_linkstat_from_phy(jme);
- while (!(phylink & PHY_LINK_UP) && (to -= 10) > 0) {
- mdelay(10);
- phylink = jme_linkstat_from_phy(jme);
- }
-}
-
-static void
-jme_powersave_phy(struct jme_adapter *jme)
-{
- if (jme->reg_pmcs) {
- jme_set_100m_half(jme);
- if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN))
- jme_wait_link(jme);
- jme_clear_pm(jme);
- } else {
- jme_phy_off(jme);
- }
-}
-
-static int
-jme_close(struct net_device *netdev)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
-
- netif_stop_queue(netdev);
- netif_carrier_off(netdev);
-
- jme_stop_irq(jme);
- jme_free_irq(jme);
-
- JME_NAPI_DISABLE(jme);
-
- tasklet_disable(&jme->linkch_task);
- tasklet_disable(&jme->txclean_task);
- tasklet_disable(&jme->rxclean_task);
- tasklet_disable(&jme->rxempty_task);
-
- jme_disable_rx_engine(jme);
- jme_disable_tx_engine(jme);
- jme_reset_mac_processor(jme);
- jme_free_rx_resources(jme);
- jme_free_tx_resources(jme);
- jme->phylink = 0;
- jme_phy_off(jme);
-
- return 0;
-}
-
-static int
-jme_alloc_txdesc(struct jme_adapter *jme,
- struct sk_buff *skb)
-{
- struct jme_ring *txring = &(jme->txring[0]);
- int idx, nr_alloc, mask = jme->tx_ring_mask;
-
- idx = txring->next_to_use;
- nr_alloc = skb_shinfo(skb)->nr_frags + 2;
-
- if (unlikely(atomic_read(&txring->nr_free) < nr_alloc))
- return -1;
-
- atomic_sub(nr_alloc, &txring->nr_free);
-
- txring->next_to_use = (txring->next_to_use + nr_alloc) & mask;
-
- return idx;
-}
-
-static void
-jme_fill_tx_map(struct pci_dev *pdev,
- struct txdesc *txdesc,
- struct jme_buffer_info *txbi,
- struct page *page,
- u32 page_offset,
- u32 len,
- u8 hidma)
-{
- dma_addr_t dmaaddr;
-
- dmaaddr = pci_map_page(pdev,
- page,
- page_offset,
- len,
- PCI_DMA_TODEVICE);
-
- pci_dma_sync_single_for_device(pdev,
- dmaaddr,
- len,
- PCI_DMA_TODEVICE);
-
- txdesc->dw[0] = 0;
- txdesc->dw[1] = 0;
- txdesc->desc2.flags = TXFLAG_OWN;
- txdesc->desc2.flags |= (hidma) ? TXFLAG_64BIT : 0;
- txdesc->desc2.datalen = cpu_to_le16(len);
- txdesc->desc2.bufaddrh = cpu_to_le32((__u64)dmaaddr >> 32);
- txdesc->desc2.bufaddrl = cpu_to_le32(
- (__u64)dmaaddr & 0xFFFFFFFFUL);
-
- txbi->mapping = dmaaddr;
- txbi->len = len;
-}
-
-static void
-jme_map_tx_skb(struct jme_adapter *jme, struct sk_buff *skb, int idx)
-{
- struct jme_ring *txring = &(jme->txring[0]);
- struct txdesc *txdesc = txring->desc, *ctxdesc;
- struct jme_buffer_info *txbi = txring->bufinf, *ctxbi;
- u8 hidma = jme->dev->features & NETIF_F_HIGHDMA;
- int i, nr_frags = skb_shinfo(skb)->nr_frags;
- int mask = jme->tx_ring_mask;
- struct skb_frag_struct *frag;
- u32 len;
-
- for (i = 0 ; i < nr_frags ; ++i) {
- frag = &skb_shinfo(skb)->frags[i];
- ctxdesc = txdesc + ((idx + i + 2) & (mask));
- ctxbi = txbi + ((idx + i + 2) & (mask));
-
- jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, frag->page,
- frag->page_offset, frag->size, hidma);
- }
-
- len = skb_is_nonlinear(skb) ? skb_headlen(skb) : skb->len;
- ctxdesc = txdesc + ((idx + 1) & (mask));
- ctxbi = txbi + ((idx + 1) & (mask));
- jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, virt_to_page(skb->data),
- offset_in_page(skb->data), len, hidma);
-
-}
-
-static int
-jme_expand_header(struct jme_adapter *jme, struct sk_buff *skb)
-{
- if (unlikely(skb_shinfo(skb)->gso_size &&
- skb_header_cloned(skb) &&
- pskb_expand_head(skb, 0, 0, GFP_ATOMIC))) {
- dev_kfree_skb(skb);
- return -1;
- }
-
- return 0;
-}
-
-static int
-jme_tx_tso(struct sk_buff *skb, __le16 *mss, u8 *flags)
-{
- *mss = cpu_to_le16(skb_shinfo(skb)->gso_size << TXDESC_MSS_SHIFT);
- if (*mss) {
- *flags |= TXFLAG_LSEN;
-
- if (skb->protocol == htons(ETH_P_IP)) {
- struct iphdr *iph = ip_hdr(skb);
-
- iph->check = 0;
- tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
- iph->daddr, 0,
- IPPROTO_TCP,
- 0);
- } else {
- struct ipv6hdr *ip6h = ipv6_hdr(skb);
-
- tcp_hdr(skb)->check = ~csum_ipv6_magic(&ip6h->saddr,
- &ip6h->daddr, 0,
- IPPROTO_TCP,
- 0);
- }
-
- return 0;
- }
-
- return 1;
-}
-
-static void
-jme_tx_csum(struct jme_adapter *jme, struct sk_buff *skb, u8 *flags)
-{
- if (skb->ip_summed == CHECKSUM_PARTIAL) {
- u8 ip_proto;
-
- switch (skb->protocol) {
- case htons(ETH_P_IP):
- ip_proto = ip_hdr(skb)->protocol;
- break;
- case htons(ETH_P_IPV6):
- ip_proto = ipv6_hdr(skb)->nexthdr;
- break;
- default:
- ip_proto = 0;
- break;
- }
-
- switch (ip_proto) {
- case IPPROTO_TCP:
- *flags |= TXFLAG_TCPCS;
- break;
- case IPPROTO_UDP:
- *flags |= TXFLAG_UDPCS;
- break;
- default:
- netif_err(jme, tx_err, jme->dev, "Error upper layer protocol\n");
- break;
- }
- }
-}
-
-static inline void
-jme_tx_vlan(struct sk_buff *skb, __le16 *vlan, u8 *flags)
-{
- if (vlan_tx_tag_present(skb)) {
- *flags |= TXFLAG_TAGON;
- *vlan = cpu_to_le16(vlan_tx_tag_get(skb));
- }
-}
-
-static int
-jme_fill_tx_desc(struct jme_adapter *jme, struct sk_buff *skb, int idx)
-{
- struct jme_ring *txring = &(jme->txring[0]);
- struct txdesc *txdesc;
- struct jme_buffer_info *txbi;
- u8 flags;
-
- txdesc = (struct txdesc *)txring->desc + idx;
- txbi = txring->bufinf + idx;
-
- txdesc->dw[0] = 0;
- txdesc->dw[1] = 0;
- txdesc->dw[2] = 0;
- txdesc->dw[3] = 0;
- txdesc->desc1.pktsize = cpu_to_le16(skb->len);
- /*
- * Set OWN bit at final.
- * When kernel transmit faster than NIC.
- * And NIC trying to send this descriptor before we tell
- * it to start sending this TX queue.
- * Other fields are already filled correctly.
- */
- wmb();
- flags = TXFLAG_OWN | TXFLAG_INT;
- /*
- * Set checksum flags while not tso
- */
- if (jme_tx_tso(skb, &txdesc->desc1.mss, &flags))
- jme_tx_csum(jme, skb, &flags);
- jme_tx_vlan(skb, &txdesc->desc1.vlan, &flags);
- jme_map_tx_skb(jme, skb, idx);
- txdesc->desc1.flags = flags;
- /*
- * Set tx buffer info after telling NIC to send
- * For better tx_clean timing
- */
- wmb();
- txbi->nr_desc = skb_shinfo(skb)->nr_frags + 2;
- txbi->skb = skb;
- txbi->len = skb->len;
- txbi->start_xmit = jiffies;
- if (!txbi->start_xmit)
- txbi->start_xmit = (0UL-1);
-
- return 0;
-}
-
-static void
-jme_stop_queue_if_full(struct jme_adapter *jme)
-{
- struct jme_ring *txring = &(jme->txring[0]);
- struct jme_buffer_info *txbi = txring->bufinf;
- int idx = atomic_read(&txring->next_to_clean);
-
- txbi += idx;
-
- smp_wmb();
- if (unlikely(atomic_read(&txring->nr_free) < (MAX_SKB_FRAGS+2))) {
- netif_stop_queue(jme->dev);
- netif_info(jme, tx_queued, jme->dev, "TX Queue Paused\n");
- smp_wmb();
- if (atomic_read(&txring->nr_free)
- >= (jme->tx_wake_threshold)) {
- netif_wake_queue(jme->dev);
- netif_info(jme, tx_queued, jme->dev, "TX Queue Fast Waked\n");
- }
- }
-
- if (unlikely(txbi->start_xmit &&
- (jiffies - txbi->start_xmit) >= TX_TIMEOUT &&
- txbi->skb)) {
- netif_stop_queue(jme->dev);
- netif_info(jme, tx_queued, jme->dev,
- "TX Queue Stopped %d@%lu\n", idx, jiffies);
- }
-}
-
-/*
- * This function is already protected by netif_tx_lock()
- */
-
-static netdev_tx_t
-jme_start_xmit(struct sk_buff *skb, struct net_device *netdev)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- int idx;
-
- if (unlikely(jme_expand_header(jme, skb))) {
- ++(NET_STAT(jme).tx_dropped);
- return NETDEV_TX_OK;
- }
-
- idx = jme_alloc_txdesc(jme, skb);
-
- if (unlikely(idx < 0)) {
- netif_stop_queue(netdev);
- netif_err(jme, tx_err, jme->dev,
- "BUG! Tx ring full when queue awake!\n");
-
- return NETDEV_TX_BUSY;
- }
-
- jme_fill_tx_desc(jme, skb, idx);
-
- jwrite32(jme, JME_TXCS, jme->reg_txcs |
- TXCS_SELECT_QUEUE0 |
- TXCS_QUEUE0S |
- TXCS_ENABLE);
-
- tx_dbg(jme, "xmit: %d+%d@%lu\n",
- idx, skb_shinfo(skb)->nr_frags + 2, jiffies);
- jme_stop_queue_if_full(jme);
-
- return NETDEV_TX_OK;
-}
-
-static void
-jme_set_unicastaddr(struct net_device *netdev)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- u32 val;
-
- val = (netdev->dev_addr[3] & 0xff) << 24 |
- (netdev->dev_addr[2] & 0xff) << 16 |
- (netdev->dev_addr[1] & 0xff) << 8 |
- (netdev->dev_addr[0] & 0xff);
- jwrite32(jme, JME_RXUMA_LO, val);
- val = (netdev->dev_addr[5] & 0xff) << 8 |
- (netdev->dev_addr[4] & 0xff);
- jwrite32(jme, JME_RXUMA_HI, val);
-}
-
-static int
-jme_set_macaddr(struct net_device *netdev, void *p)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- struct sockaddr *addr = p;
-
- if (netif_running(netdev))
- return -EBUSY;
-
- spin_lock_bh(&jme->macaddr_lock);
- memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
- jme_set_unicastaddr(netdev);
- spin_unlock_bh(&jme->macaddr_lock);
-
- return 0;
-}
-
-static void
-jme_set_multi(struct net_device *netdev)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- u32 mc_hash[2] = {};
-
- spin_lock_bh(&jme->rxmcs_lock);
-
- jme->reg_rxmcs |= RXMCS_BRDFRAME | RXMCS_UNIFRAME;
-
- if (netdev->flags & IFF_PROMISC) {
- jme->reg_rxmcs |= RXMCS_ALLFRAME;
- } else if (netdev->flags & IFF_ALLMULTI) {
- jme->reg_rxmcs |= RXMCS_ALLMULFRAME;
- } else if (netdev->flags & IFF_MULTICAST) {
- struct netdev_hw_addr *ha;
- int bit_nr;
-
- jme->reg_rxmcs |= RXMCS_MULFRAME | RXMCS_MULFILTERED;
- netdev_for_each_mc_addr(ha, netdev) {
- bit_nr = ether_crc(ETH_ALEN, ha->addr) & 0x3F;
- mc_hash[bit_nr >> 5] |= 1 << (bit_nr & 0x1F);
- }
-
- jwrite32(jme, JME_RXMCHT_LO, mc_hash[0]);
- jwrite32(jme, JME_RXMCHT_HI, mc_hash[1]);
- }
-
- wmb();
- jwrite32(jme, JME_RXMCS, jme->reg_rxmcs);
-
- spin_unlock_bh(&jme->rxmcs_lock);
-}
-
-static int
-jme_change_mtu(struct net_device *netdev, int new_mtu)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
-
- if (new_mtu == jme->old_mtu)
- return 0;
-
- if (((new_mtu + ETH_HLEN) > MAX_ETHERNET_JUMBO_PACKET_SIZE) ||
- ((new_mtu) < IPV6_MIN_MTU))
- return -EINVAL;
-
- if (new_mtu > 4000) {
- jme->reg_rxcs &= ~RXCS_FIFOTHNP;
- jme->reg_rxcs |= RXCS_FIFOTHNP_64QW;
- jme_restart_rx_engine(jme);
- } else {
- jme->reg_rxcs &= ~RXCS_FIFOTHNP;
- jme->reg_rxcs |= RXCS_FIFOTHNP_128QW;
- jme_restart_rx_engine(jme);
- }
-
- netdev->mtu = new_mtu;
- netdev_update_features(netdev);
-
- jme_reset_link(jme);
-
- return 0;
-}
-
-static void
-jme_tx_timeout(struct net_device *netdev)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
-
- jme->phylink = 0;
- jme_reset_phy_processor(jme);
- if (test_bit(JME_FLAG_SSET, &jme->flags))
- jme_set_settings(netdev, &jme->old_ecmd);
-
- /*
- * Force to Reset the link again
- */
- jme_reset_link(jme);
-}
-
-static inline void jme_pause_rx(struct jme_adapter *jme)
-{
- atomic_dec(&jme->link_changing);
-
- jme_set_rx_pcc(jme, PCC_OFF);
- if (test_bit(JME_FLAG_POLL, &jme->flags)) {
- JME_NAPI_DISABLE(jme);
- } else {
- tasklet_disable(&jme->rxclean_task);
- tasklet_disable(&jme->rxempty_task);
- }
-}
-
-static inline void jme_resume_rx(struct jme_adapter *jme)
-{
- struct dynpcc_info *dpi = &(jme->dpi);
-
- if (test_bit(JME_FLAG_POLL, &jme->flags)) {
- JME_NAPI_ENABLE(jme);
- } else {
- tasklet_hi_enable(&jme->rxclean_task);
- tasklet_hi_enable(&jme->rxempty_task);
- }
- dpi->cur = PCC_P1;
- dpi->attempt = PCC_P1;
- dpi->cnt = 0;
- jme_set_rx_pcc(jme, PCC_P1);
-
- atomic_inc(&jme->link_changing);
-}
-
-static void
-jme_get_drvinfo(struct net_device *netdev,
- struct ethtool_drvinfo *info)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
-
- strcpy(info->driver, DRV_NAME);
- strcpy(info->version, DRV_VERSION);
- strcpy(info->bus_info, pci_name(jme->pdev));
-}
-
-static int
-jme_get_regs_len(struct net_device *netdev)
-{
- return JME_REG_LEN;
-}
-
-static void
-mmapio_memcpy(struct jme_adapter *jme, u32 *p, u32 reg, int len)
-{
- int i;
-
- for (i = 0 ; i < len ; i += 4)
- p[i >> 2] = jread32(jme, reg + i);
-}
-
-static void
-mdio_memcpy(struct jme_adapter *jme, u32 *p, int reg_nr)
-{
- int i;
- u16 *p16 = (u16 *)p;
-
- for (i = 0 ; i < reg_nr ; ++i)
- p16[i] = jme_mdio_read(jme->dev, jme->mii_if.phy_id, i);
-}
-
-static void
-jme_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- u32 *p32 = (u32 *)p;
-
- memset(p, 0xFF, JME_REG_LEN);
-
- regs->version = 1;
- mmapio_memcpy(jme, p32, JME_MAC, JME_MAC_LEN);
-
- p32 += 0x100 >> 2;
- mmapio_memcpy(jme, p32, JME_PHY, JME_PHY_LEN);
-
- p32 += 0x100 >> 2;
- mmapio_memcpy(jme, p32, JME_MISC, JME_MISC_LEN);
-
- p32 += 0x100 >> 2;
- mmapio_memcpy(jme, p32, JME_RSS, JME_RSS_LEN);
-
- p32 += 0x100 >> 2;
- mdio_memcpy(jme, p32, JME_PHY_REG_NR);
-}
-
-static int
-jme_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
-
- ecmd->tx_coalesce_usecs = PCC_TX_TO;
- ecmd->tx_max_coalesced_frames = PCC_TX_CNT;
-
- if (test_bit(JME_FLAG_POLL, &jme->flags)) {
- ecmd->use_adaptive_rx_coalesce = false;
- ecmd->rx_coalesce_usecs = 0;
- ecmd->rx_max_coalesced_frames = 0;
- return 0;
- }
-
- ecmd->use_adaptive_rx_coalesce = true;
-
- switch (jme->dpi.cur) {
- case PCC_P1:
- ecmd->rx_coalesce_usecs = PCC_P1_TO;
- ecmd->rx_max_coalesced_frames = PCC_P1_CNT;
- break;
- case PCC_P2:
- ecmd->rx_coalesce_usecs = PCC_P2_TO;
- ecmd->rx_max_coalesced_frames = PCC_P2_CNT;
- break;
- case PCC_P3:
- ecmd->rx_coalesce_usecs = PCC_P3_TO;
- ecmd->rx_max_coalesced_frames = PCC_P3_CNT;
- break;
- default:
- break;
- }
-
- return 0;
-}
-
-static int
-jme_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- struct dynpcc_info *dpi = &(jme->dpi);
-
- if (netif_running(netdev))
- return -EBUSY;
-
- if (ecmd->use_adaptive_rx_coalesce &&
- test_bit(JME_FLAG_POLL, &jme->flags)) {
- clear_bit(JME_FLAG_POLL, &jme->flags);
- jme->jme_rx = netif_rx;
- dpi->cur = PCC_P1;
- dpi->attempt = PCC_P1;
- dpi->cnt = 0;
- jme_set_rx_pcc(jme, PCC_P1);
- jme_interrupt_mode(jme);
- } else if (!(ecmd->use_adaptive_rx_coalesce) &&
- !(test_bit(JME_FLAG_POLL, &jme->flags))) {
- set_bit(JME_FLAG_POLL, &jme->flags);
- jme->jme_rx = netif_receive_skb;
- jme_interrupt_mode(jme);
- }
-
- return 0;
-}
-
-static void
-jme_get_pauseparam(struct net_device *netdev,
- struct ethtool_pauseparam *ecmd)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- u32 val;
-
- ecmd->tx_pause = (jme->reg_txpfc & TXPFC_PF_EN) != 0;
- ecmd->rx_pause = (jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0;
-
- spin_lock_bh(&jme->phy_lock);
- val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE);
- spin_unlock_bh(&jme->phy_lock);
-
- ecmd->autoneg =
- (val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0;
-}
-
-static int
-jme_set_pauseparam(struct net_device *netdev,
- struct ethtool_pauseparam *ecmd)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- u32 val;
-
- if (((jme->reg_txpfc & TXPFC_PF_EN) != 0) ^
- (ecmd->tx_pause != 0)) {
-
- if (ecmd->tx_pause)
- jme->reg_txpfc |= TXPFC_PF_EN;
- else
- jme->reg_txpfc &= ~TXPFC_PF_EN;
-
- jwrite32(jme, JME_TXPFC, jme->reg_txpfc);
- }
-
- spin_lock_bh(&jme->rxmcs_lock);
- if (((jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0) ^
- (ecmd->rx_pause != 0)) {
-
- if (ecmd->rx_pause)
- jme->reg_rxmcs |= RXMCS_FLOWCTRL;
- else
- jme->reg_rxmcs &= ~RXMCS_FLOWCTRL;
-
- jwrite32(jme, JME_RXMCS, jme->reg_rxmcs);
- }
- spin_unlock_bh(&jme->rxmcs_lock);
-
- spin_lock_bh(&jme->phy_lock);
- val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE);
- if (((val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0) ^
- (ecmd->autoneg != 0)) {
-
- if (ecmd->autoneg)
- val |= (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
- else
- val &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
-
- jme_mdio_write(jme->dev, jme->mii_if.phy_id,
- MII_ADVERTISE, val);
- }
- spin_unlock_bh(&jme->phy_lock);
-
- return 0;
-}
-
-static void
-jme_get_wol(struct net_device *netdev,
- struct ethtool_wolinfo *wol)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
-
- wol->supported = WAKE_MAGIC | WAKE_PHY;
-
- wol->wolopts = 0;
-
- if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN))
- wol->wolopts |= WAKE_PHY;
-
- if (jme->reg_pmcs & PMCS_MFEN)
- wol->wolopts |= WAKE_MAGIC;
-
-}
-
-static int
-jme_set_wol(struct net_device *netdev,
- struct ethtool_wolinfo *wol)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
-
- if (wol->wolopts & (WAKE_MAGICSECURE |
- WAKE_UCAST |
- WAKE_MCAST |
- WAKE_BCAST |
- WAKE_ARP))
- return -EOPNOTSUPP;
-
- jme->reg_pmcs = 0;
-
- if (wol->wolopts & WAKE_PHY)
- jme->reg_pmcs |= PMCS_LFEN | PMCS_LREN;
-
- if (wol->wolopts & WAKE_MAGIC)
- jme->reg_pmcs |= PMCS_MFEN;
-
- jwrite32(jme, JME_PMCS, jme->reg_pmcs);
- device_set_wakeup_enable(&jme->pdev->dev, !!(jme->reg_pmcs));
-
- return 0;
-}
-
-static int
-jme_get_settings(struct net_device *netdev,
- struct ethtool_cmd *ecmd)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- int rc;
-
- spin_lock_bh(&jme->phy_lock);
- rc = mii_ethtool_gset(&(jme->mii_if), ecmd);
- spin_unlock_bh(&jme->phy_lock);
- return rc;
-}
-
-static int
-jme_set_settings(struct net_device *netdev,
- struct ethtool_cmd *ecmd)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- int rc, fdc = 0;
-
- if (ethtool_cmd_speed(ecmd) == SPEED_1000
- && ecmd->autoneg != AUTONEG_ENABLE)
- return -EINVAL;
-
- /*
- * Check If user changed duplex only while force_media.
- * Hardware would not generate link change interrupt.
- */
- if (jme->mii_if.force_media &&
- ecmd->autoneg != AUTONEG_ENABLE &&
- (jme->mii_if.full_duplex != ecmd->duplex))
- fdc = 1;
-
- spin_lock_bh(&jme->phy_lock);
- rc = mii_ethtool_sset(&(jme->mii_if), ecmd);
- spin_unlock_bh(&jme->phy_lock);
-
- if (!rc) {
- if (fdc)
- jme_reset_link(jme);
- jme->old_ecmd = *ecmd;
- set_bit(JME_FLAG_SSET, &jme->flags);
- }
-
- return rc;
-}
-
-static int
-jme_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
-{
- int rc;
- struct jme_adapter *jme = netdev_priv(netdev);
- struct mii_ioctl_data *mii_data = if_mii(rq);
- unsigned int duplex_chg;
-
- if (cmd == SIOCSMIIREG) {
- u16 val = mii_data->val_in;
- if (!(val & (BMCR_RESET|BMCR_ANENABLE)) &&
- (val & BMCR_SPEED1000))
- return -EINVAL;
- }
-
- spin_lock_bh(&jme->phy_lock);
- rc = generic_mii_ioctl(&jme->mii_if, mii_data, cmd, &duplex_chg);
- spin_unlock_bh(&jme->phy_lock);
-
- if (!rc && (cmd == SIOCSMIIREG)) {
- if (duplex_chg)
- jme_reset_link(jme);
- jme_get_settings(netdev, &jme->old_ecmd);
- set_bit(JME_FLAG_SSET, &jme->flags);
- }
-
- return rc;
-}
-
-static u32
-jme_get_link(struct net_device *netdev)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- return jread32(jme, JME_PHY_LINK) & PHY_LINK_UP;
-}
-
-static u32
-jme_get_msglevel(struct net_device *netdev)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- return jme->msg_enable;
-}
-
-static void
-jme_set_msglevel(struct net_device *netdev, u32 value)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- jme->msg_enable = value;
-}
-
-static u32
-jme_fix_features(struct net_device *netdev, u32 features)
-{
- if (netdev->mtu > 1900)
- features &= ~(NETIF_F_ALL_TSO | NETIF_F_ALL_CSUM);
- return features;
-}
-
-static int
-jme_set_features(struct net_device *netdev, u32 features)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
-
- spin_lock_bh(&jme->rxmcs_lock);
- if (features & NETIF_F_RXCSUM)
- jme->reg_rxmcs |= RXMCS_CHECKSUM;
- else
- jme->reg_rxmcs &= ~RXMCS_CHECKSUM;
- jwrite32(jme, JME_RXMCS, jme->reg_rxmcs);
- spin_unlock_bh(&jme->rxmcs_lock);
-
- return 0;
-}
-
-static int
-jme_nway_reset(struct net_device *netdev)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- jme_restart_an(jme);
- return 0;
-}
-
-static u8
-jme_smb_read(struct jme_adapter *jme, unsigned int addr)
-{
- u32 val;
- int to;
-
- val = jread32(jme, JME_SMBCSR);
- to = JME_SMB_BUSY_TIMEOUT;
- while ((val & SMBCSR_BUSY) && --to) {
- msleep(1);
- val = jread32(jme, JME_SMBCSR);
- }
- if (!to) {
- netif_err(jme, hw, jme->dev, "SMB Bus Busy\n");
- return 0xFF;
- }
-
- jwrite32(jme, JME_SMBINTF,
- ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) |
- SMBINTF_HWRWN_READ |
- SMBINTF_HWCMD);
-
- val = jread32(jme, JME_SMBINTF);
- to = JME_SMB_BUSY_TIMEOUT;
- while ((val & SMBINTF_HWCMD) && --to) {
- msleep(1);
- val = jread32(jme, JME_SMBINTF);
- }
- if (!to) {
- netif_err(jme, hw, jme->dev, "SMB Bus Busy\n");
- return 0xFF;
- }
-
- return (val & SMBINTF_HWDATR) >> SMBINTF_HWDATR_SHIFT;
-}
-
-static void
-jme_smb_write(struct jme_adapter *jme, unsigned int addr, u8 data)
-{
- u32 val;
- int to;
-
- val = jread32(jme, JME_SMBCSR);
- to = JME_SMB_BUSY_TIMEOUT;
- while ((val & SMBCSR_BUSY) && --to) {
- msleep(1);
- val = jread32(jme, JME_SMBCSR);
- }
- if (!to) {
- netif_err(jme, hw, jme->dev, "SMB Bus Busy\n");
- return;
- }
-
- jwrite32(jme, JME_SMBINTF,
- ((data << SMBINTF_HWDATW_SHIFT) & SMBINTF_HWDATW) |
- ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) |
- SMBINTF_HWRWN_WRITE |
- SMBINTF_HWCMD);
-
- val = jread32(jme, JME_SMBINTF);
- to = JME_SMB_BUSY_TIMEOUT;
- while ((val & SMBINTF_HWCMD) && --to) {
- msleep(1);
- val = jread32(jme, JME_SMBINTF);
- }
- if (!to) {
- netif_err(jme, hw, jme->dev, "SMB Bus Busy\n");
- return;
- }
-
- mdelay(2);
-}
-
-static int
-jme_get_eeprom_len(struct net_device *netdev)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- u32 val;
- val = jread32(jme, JME_SMBCSR);
- return (val & SMBCSR_EEPROMD) ? JME_SMB_LEN : 0;
-}
-
-static int
-jme_get_eeprom(struct net_device *netdev,
- struct ethtool_eeprom *eeprom, u8 *data)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- int i, offset = eeprom->offset, len = eeprom->len;
-
- /*
- * ethtool will check the boundary for us
- */
- eeprom->magic = JME_EEPROM_MAGIC;
- for (i = 0 ; i < len ; ++i)
- data[i] = jme_smb_read(jme, i + offset);
-
- return 0;
-}
-
-static int
-jme_set_eeprom(struct net_device *netdev,
- struct ethtool_eeprom *eeprom, u8 *data)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
- int i, offset = eeprom->offset, len = eeprom->len;
-
- if (eeprom->magic != JME_EEPROM_MAGIC)
- return -EINVAL;
-
- /*
- * ethtool will check the boundary for us
- */
- for (i = 0 ; i < len ; ++i)
- jme_smb_write(jme, i + offset, data[i]);
-
- return 0;
-}
-
-static const struct ethtool_ops jme_ethtool_ops = {
- .get_drvinfo = jme_get_drvinfo,
- .get_regs_len = jme_get_regs_len,
- .get_regs = jme_get_regs,
- .get_coalesce = jme_get_coalesce,
- .set_coalesce = jme_set_coalesce,
- .get_pauseparam = jme_get_pauseparam,
- .set_pauseparam = jme_set_pauseparam,
- .get_wol = jme_get_wol,
- .set_wol = jme_set_wol,
- .get_settings = jme_get_settings,
- .set_settings = jme_set_settings,
- .get_link = jme_get_link,
- .get_msglevel = jme_get_msglevel,
- .set_msglevel = jme_set_msglevel,
- .nway_reset = jme_nway_reset,
- .get_eeprom_len = jme_get_eeprom_len,
- .get_eeprom = jme_get_eeprom,
- .set_eeprom = jme_set_eeprom,
-};
-
-static int
-jme_pci_dma64(struct pci_dev *pdev)
-{
- if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 &&
- !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
- if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
- return 1;
-
- if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 &&
- !pci_set_dma_mask(pdev, DMA_BIT_MASK(40)))
- if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40)))
- return 1;
-
- if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
- if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
- return 0;
-
- return -1;
-}
-
-static inline void
-jme_phy_init(struct jme_adapter *jme)
-{
- u16 reg26;
-
- reg26 = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 26);
- jme_mdio_write(jme->dev, jme->mii_if.phy_id, 26, reg26 | 0x1000);
-}
-
-static inline void
-jme_check_hw_ver(struct jme_adapter *jme)
-{
- u32 chipmode;
-
- chipmode = jread32(jme, JME_CHIPMODE);
-
- jme->fpgaver = (chipmode & CM_FPGAVER_MASK) >> CM_FPGAVER_SHIFT;
- jme->chiprev = (chipmode & CM_CHIPREV_MASK) >> CM_CHIPREV_SHIFT;
- jme->chip_main_rev = jme->chiprev & 0xF;
- jme->chip_sub_rev = (jme->chiprev >> 4) & 0xF;
-}
-
-static const struct net_device_ops jme_netdev_ops = {
- .ndo_open = jme_open,
- .ndo_stop = jme_close,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_do_ioctl = jme_ioctl,
- .ndo_start_xmit = jme_start_xmit,
- .ndo_set_mac_address = jme_set_macaddr,
- .ndo_set_multicast_list = jme_set_multi,
- .ndo_change_mtu = jme_change_mtu,
- .ndo_tx_timeout = jme_tx_timeout,
- .ndo_fix_features = jme_fix_features,
- .ndo_set_features = jme_set_features,
-};
-
-static int __devinit
-jme_init_one(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- int rc = 0, using_dac, i;
- struct net_device *netdev;
- struct jme_adapter *jme;
- u16 bmcr, bmsr;
- u32 apmc;
-
- /*
- * set up PCI device basics
- */
- rc = pci_enable_device(pdev);
- if (rc) {
- pr_err("Cannot enable PCI device\n");
- goto err_out;
- }
-
- using_dac = jme_pci_dma64(pdev);
- if (using_dac < 0) {
- pr_err("Cannot set PCI DMA Mask\n");
- rc = -EIO;
- goto err_out_disable_pdev;
- }
-
- if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
- pr_err("No PCI resource region found\n");
- rc = -ENOMEM;
- goto err_out_disable_pdev;
- }
-
- rc = pci_request_regions(pdev, DRV_NAME);
- if (rc) {
- pr_err("Cannot obtain PCI resource region\n");
- goto err_out_disable_pdev;
- }
-
- pci_set_master(pdev);
-
- /*
- * alloc and init net device
- */
- netdev = alloc_etherdev(sizeof(*jme));
- if (!netdev) {
- pr_err("Cannot allocate netdev structure\n");
- rc = -ENOMEM;
- goto err_out_release_regions;
- }
- netdev->netdev_ops = &jme_netdev_ops;
- netdev->ethtool_ops = &jme_ethtool_ops;
- netdev->watchdog_timeo = TX_TIMEOUT;
- netdev->hw_features = NETIF_F_IP_CSUM |
- NETIF_F_IPV6_CSUM |
- NETIF_F_SG |
- NETIF_F_TSO |
- NETIF_F_TSO6 |
- NETIF_F_RXCSUM;
- netdev->features = NETIF_F_IP_CSUM |
- NETIF_F_IPV6_CSUM |
- NETIF_F_SG |
- NETIF_F_TSO |
- NETIF_F_TSO6 |
- NETIF_F_HW_VLAN_TX |
- NETIF_F_HW_VLAN_RX;
- if (using_dac)
- netdev->features |= NETIF_F_HIGHDMA;
-
- SET_NETDEV_DEV(netdev, &pdev->dev);
- pci_set_drvdata(pdev, netdev);
-
- /*
- * init adapter info
- */
- jme = netdev_priv(netdev);
- jme->pdev = pdev;
- jme->dev = netdev;
- jme->jme_rx = netif_rx;
- jme->old_mtu = netdev->mtu = 1500;
- jme->phylink = 0;
- jme->tx_ring_size = 1 << 10;
- jme->tx_ring_mask = jme->tx_ring_size - 1;
- jme->tx_wake_threshold = 1 << 9;
- jme->rx_ring_size = 1 << 9;
- jme->rx_ring_mask = jme->rx_ring_size - 1;
- jme->msg_enable = JME_DEF_MSG_ENABLE;
- jme->regs = ioremap(pci_resource_start(pdev, 0),
- pci_resource_len(pdev, 0));
- if (!(jme->regs)) {
- pr_err("Mapping PCI resource region error\n");
- rc = -ENOMEM;
- goto err_out_free_netdev;
- }
-
- if (no_pseudohp) {
- apmc = jread32(jme, JME_APMC) & ~JME_APMC_PSEUDO_HP_EN;
- jwrite32(jme, JME_APMC, apmc);
- } else if (force_pseudohp) {
- apmc = jread32(jme, JME_APMC) | JME_APMC_PSEUDO_HP_EN;
- jwrite32(jme, JME_APMC, apmc);
- }
-
- NETIF_NAPI_SET(netdev, &jme->napi, jme_poll, jme->rx_ring_size >> 2)
-
- spin_lock_init(&jme->phy_lock);
- spin_lock_init(&jme->macaddr_lock);
- spin_lock_init(&jme->rxmcs_lock);
-
- atomic_set(&jme->link_changing, 1);
- atomic_set(&jme->rx_cleaning, 1);
- atomic_set(&jme->tx_cleaning, 1);
- atomic_set(&jme->rx_empty, 1);
-
- tasklet_init(&jme->pcc_task,
- jme_pcc_tasklet,
- (unsigned long) jme);
- tasklet_init(&jme->linkch_task,
- jme_link_change_tasklet,
- (unsigned long) jme);
- tasklet_init(&jme->txclean_task,
- jme_tx_clean_tasklet,
- (unsigned long) jme);
- tasklet_init(&jme->rxclean_task,
- jme_rx_clean_tasklet,
- (unsigned long) jme);
- tasklet_init(&jme->rxempty_task,
- jme_rx_empty_tasklet,
- (unsigned long) jme);
- tasklet_disable_nosync(&jme->linkch_task);
- tasklet_disable_nosync(&jme->txclean_task);
- tasklet_disable_nosync(&jme->rxclean_task);
- tasklet_disable_nosync(&jme->rxempty_task);
- jme->dpi.cur = PCC_P1;
-
- jme->reg_ghc = 0;
- jme->reg_rxcs = RXCS_DEFAULT;
- jme->reg_rxmcs = RXMCS_DEFAULT;
- jme->reg_txpfc = 0;
- jme->reg_pmcs = PMCS_MFEN;
- jme->reg_gpreg1 = GPREG1_DEFAULT;
-
- if (jme->reg_rxmcs & RXMCS_CHECKSUM)
- netdev->features |= NETIF_F_RXCSUM;
-
- /*
- * Get Max Read Req Size from PCI Config Space
- */
- pci_read_config_byte(pdev, PCI_DCSR_MRRS, &jme->mrrs);
- jme->mrrs &= PCI_DCSR_MRRS_MASK;
- switch (jme->mrrs) {
- case MRRS_128B:
- jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_128B;
- break;
- case MRRS_256B:
- jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_256B;
- break;
- default:
- jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_512B;
- break;
- }
-
- /*
- * Must check before reset_mac_processor
- */
- jme_check_hw_ver(jme);
- jme->mii_if.dev = netdev;
- if (jme->fpgaver) {
- jme->mii_if.phy_id = 0;
- for (i = 1 ; i < 32 ; ++i) {
- bmcr = jme_mdio_read(netdev, i, MII_BMCR);
- bmsr = jme_mdio_read(netdev, i, MII_BMSR);
- if (bmcr != 0xFFFFU && (bmcr != 0 || bmsr != 0)) {
- jme->mii_if.phy_id = i;
- break;
- }
- }
-
- if (!jme->mii_if.phy_id) {
- rc = -EIO;
- pr_err("Can not find phy_id\n");
- goto err_out_unmap;
- }
-
- jme->reg_ghc |= GHC_LINK_POLL;
- } else {
- jme->mii_if.phy_id = 1;
- }
- if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250)
- jme->mii_if.supports_gmii = true;
- else
- jme->mii_if.supports_gmii = false;
- jme->mii_if.phy_id_mask = 0x1F;
- jme->mii_if.reg_num_mask = 0x1F;
- jme->mii_if.mdio_read = jme_mdio_read;
- jme->mii_if.mdio_write = jme_mdio_write;
-
- jme_clear_pm(jme);
- pci_set_power_state(jme->pdev, PCI_D0);
- device_set_wakeup_enable(&pdev->dev, true);
-
- jme_set_phyfifo_5level(jme);
- jme->pcirev = pdev->revision;
- if (!jme->fpgaver)
- jme_phy_init(jme);
- jme_phy_off(jme);
-
- /*
- * Reset MAC processor and reload EEPROM for MAC Address
- */
- jme_reset_mac_processor(jme);
- rc = jme_reload_eeprom(jme);
- if (rc) {
- pr_err("Reload eeprom for reading MAC Address error\n");
- goto err_out_unmap;
- }
- jme_load_macaddr(netdev);
-
- /*
- * Tell stack that we are not ready to work until open()
- */
- netif_carrier_off(netdev);
-
- rc = register_netdev(netdev);
- if (rc) {
- pr_err("Cannot register net device\n");
- goto err_out_unmap;
- }
-
- netif_info(jme, probe, jme->dev, "%s%s chiprev:%x pcirev:%x macaddr:%pM\n",
- (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) ?
- "JMC250 Gigabit Ethernet" :
- (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC260) ?
- "JMC260 Fast Ethernet" : "Unknown",
- (jme->fpgaver != 0) ? " (FPGA)" : "",
- (jme->fpgaver != 0) ? jme->fpgaver : jme->chiprev,
- jme->pcirev, netdev->dev_addr);
-
- return 0;
-
-err_out_unmap:
- iounmap(jme->regs);
-err_out_free_netdev:
- pci_set_drvdata(pdev, NULL);
- free_netdev(netdev);
-err_out_release_regions:
- pci_release_regions(pdev);
-err_out_disable_pdev:
- pci_disable_device(pdev);
-err_out:
- return rc;
-}
-
-static void __devexit
-jme_remove_one(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct jme_adapter *jme = netdev_priv(netdev);
-
- unregister_netdev(netdev);
- iounmap(jme->regs);
- pci_set_drvdata(pdev, NULL);
- free_netdev(netdev);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
-
-}
-
-static void
-jme_shutdown(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct jme_adapter *jme = netdev_priv(netdev);
-
- jme_powersave_phy(jme);
- pci_pme_active(pdev, true);
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int
-jme_suspend(struct device *dev)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct jme_adapter *jme = netdev_priv(netdev);
-
- atomic_dec(&jme->link_changing);
-
- netif_device_detach(netdev);
- netif_stop_queue(netdev);
- jme_stop_irq(jme);
-
- tasklet_disable(&jme->txclean_task);
- tasklet_disable(&jme->rxclean_task);
- tasklet_disable(&jme->rxempty_task);
-
- if (netif_carrier_ok(netdev)) {
- if (test_bit(JME_FLAG_POLL, &jme->flags))
- jme_polling_mode(jme);
-
- jme_stop_pcc_timer(jme);
- jme_disable_rx_engine(jme);
- jme_disable_tx_engine(jme);
- jme_reset_mac_processor(jme);
- jme_free_rx_resources(jme);
- jme_free_tx_resources(jme);
- netif_carrier_off(netdev);
- jme->phylink = 0;
- }
-
- tasklet_enable(&jme->txclean_task);
- tasklet_hi_enable(&jme->rxclean_task);
- tasklet_hi_enable(&jme->rxempty_task);
-
- jme_powersave_phy(jme);
-
- return 0;
-}
-
-static int
-jme_resume(struct device *dev)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct jme_adapter *jme = netdev_priv(netdev);
-
- jme_clear_pm(jme);
- jme_phy_on(jme);
- if (test_bit(JME_FLAG_SSET, &jme->flags))
- jme_set_settings(netdev, &jme->old_ecmd);
- else
- jme_reset_phy_processor(jme);
-
- jme_start_irq(jme);
- netif_device_attach(netdev);
-
- atomic_inc(&jme->link_changing);
-
- jme_reset_link(jme);
-
- return 0;
-}
-
-static SIMPLE_DEV_PM_OPS(jme_pm_ops, jme_suspend, jme_resume);
-#define JME_PM_OPS (&jme_pm_ops)
-
-#else
-
-#define JME_PM_OPS NULL
-#endif
-
-static DEFINE_PCI_DEVICE_TABLE(jme_pci_tbl) = {
- { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC250) },
- { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC260) },
- { }
-};
-
-static struct pci_driver jme_driver = {
- .name = DRV_NAME,
- .id_table = jme_pci_tbl,
- .probe = jme_init_one,
- .remove = __devexit_p(jme_remove_one),
- .shutdown = jme_shutdown,
- .driver.pm = JME_PM_OPS,
-};
-
-static int __init
-jme_init_module(void)
-{
- pr_info("JMicron JMC2XX ethernet driver version %s\n", DRV_VERSION);
- return pci_register_driver(&jme_driver);
-}
-
-static void __exit
-jme_cleanup_module(void)
-{
- pci_unregister_driver(&jme_driver);
-}
-
-module_init(jme_init_module);
-module_exit(jme_cleanup_module);
-
-MODULE_AUTHOR("Guo-Fu Tseng <cooldavid@cooldavid.org>");
-MODULE_DESCRIPTION("JMicron JMC2x0 PCI Express Ethernet driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
-MODULE_DEVICE_TABLE(pci, jme_pci_tbl);
-