diff options
author | Xie He <xie.he.0141@gmail.com> | 2020-11-14 18:09:21 +0300 |
---|---|---|
committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-18 00:33:29 +0300 |
commit | f73659192b0bdf7bad826587b3530cef43cc048d (patch) | |
tree | f5d863aef20b8cf90e3d80d273cc68488591cded | |
parent | fccf111e471d0e608a96844e093bba0147bb8bba (diff) | |
download | linux-f73659192b0bdf7bad826587b3530cef43cc048d.tar.xz |
net: wan: Delete the DLCI / SDLA drivers
The DLCI driver (dlci.c) implements the Frame Relay protocol. However,
we already have another newer and better implementation of Frame Relay
provided by the HDLC_FR driver (hdlc_fr.c).
The DLCI driver's implementation of Frame Relay is used by only one
hardware driver in the kernel - the SDLA driver (sdla.c).
The SDLA driver provides Frame Relay support for the Sangoma S50x devices.
However, the vendor provides their own driver (along with their own
multi-WAN-protocol implementations including Frame Relay), called WANPIPE.
I believe most users of the hardware would use the vendor-provided WANPIPE
driver instead.
(The WANPIPE driver was even once in the kernel, but was deleted in
commit 8db60bcf3021 ("[WAN]: Remove broken and unmaintained Sangoma
drivers.") because the vendor no longer updated the in-kernel WANPIPE
driver.)
Cc: Mike McLagan <mike.mclagan@linux.org>
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Link: https://lore.kernel.org/r/20201114150921.685594-1-xie.he.0141@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r-- | CREDITS | 9 | ||||
-rw-r--r-- | Documentation/networking/framerelay.rst | 44 | ||||
-rw-r--r-- | MAINTAINERS | 6 | ||||
-rw-r--r-- | arch/arm/configs/ixp4xx_defconfig | 1 | ||||
-rw-r--r-- | arch/mips/configs/gpr_defconfig | 1 | ||||
-rw-r--r-- | arch/mips/configs/mtx1_defconfig | 1 | ||||
-rw-r--r-- | drivers/net/wan/Kconfig | 45 | ||||
-rw-r--r-- | drivers/net/wan/Makefile | 2 | ||||
-rw-r--r-- | drivers/net/wan/dlci.c | 541 | ||||
-rw-r--r-- | drivers/net/wan/sdla.c | 1655 | ||||
-rw-r--r-- | include/linux/if_frad.h | 92 | ||||
-rw-r--r-- | include/linux/sdla.h | 240 | ||||
-rw-r--r-- | include/uapi/linux/if_frad.h | 123 | ||||
-rw-r--r-- | include/uapi/linux/sdla.h | 117 | ||||
-rw-r--r-- | net/socket.c | 25 |
15 files changed, 0 insertions, 2902 deletions
@@ -2499,15 +2499,6 @@ W: http://www.rdrop.com/users/paulmck/ D: RCU and variants D: rcutorture module -N: Mike McLagan -E: mike.mclagan@linux.org -W: http://www.invlogic.com/~mmclagan -D: DLCI/FRAD drivers for Sangoma SDLAs -S: Innovative Logic Corp -S: Post Office Box 1068 -S: Laurel, Maryland 20732 -S: USA - N: Bradley McLean E: brad@bradpc.gaylord.com D: Device driver hacker diff --git a/Documentation/networking/framerelay.rst b/Documentation/networking/framerelay.rst deleted file mode 100644 index 6d904399ec6d..000000000000 --- a/Documentation/networking/framerelay.rst +++ /dev/null @@ -1,44 +0,0 @@ -.. SPDX-License-Identifier: GPL-2.0 - -================ -Frame Relay (FR) -================ - -Frame Relay (FR) support for linux is built into a two tiered system of device -drivers. The upper layer implements RFC1490 FR specification, and uses the -Data Link Connection Identifier (DLCI) as its hardware address. Usually these -are assigned by your network supplier, they give you the number/numbers of -the Virtual Connections (VC) assigned to you. - -Each DLCI is a point-to-point link between your machine and a remote one. -As such, a separate device is needed to accommodate the routing. Within the -net-tools archives is 'dlcicfg'. This program will communicate with the -base "DLCI" device, and create new net devices named 'dlci00', 'dlci01'... -The configuration script will ask you how many DLCIs you need, as well as -how many DLCIs you want to assign to each Frame Relay Access Device (FRAD). - -The DLCI uses a number of function calls to communicate with the FRAD, all -of which are stored in the FRAD's private data area. assoc/deassoc, -activate/deactivate and dlci_config. The DLCI supplies a receive function -to the FRAD to accept incoming packets. - -With this initial offering, only 1 FRAD driver is available. With many thanks -to Sangoma Technologies, David Mandelstam & Gene Kozin, the S502A, S502E & -S508 are supported. This driver is currently set up for only FR, but as -Sangoma makes more firmware modules available, it can be updated to provide -them as well. - -Configuration of the FRAD makes use of another net-tools program, 'fradcfg'. -This program makes use of a configuration file (which dlcicfg can also read) -to specify the types of boards to be configured as FRADs, as well as perform -any board specific configuration. The Sangoma module of fradcfg loads the -FR firmware into the card, sets the irq/port/memory information, and provides -an initial configuration. - -Additional FRAD device drivers can be added as hardware is available. - -At this time, the dlcicfg and fradcfg programs have not been incorporated into -the net-tools distribution. They can be found at ftp.invlogic.com, in -/pub/linux. Note that with OS/2 FTPD, you end up in /pub by default, so just -use 'cd linux'. v0.10 is for use on pre-2.0.3 and earlier, v0.15 is for -pre-2.0.4 and later. diff --git a/MAINTAINERS b/MAINTAINERS index af9f6a3ab100..3341959af0c7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6905,12 +6905,6 @@ S: Maintained W: http://floatingpoint.sourceforge.net/emulator/index.html F: arch/x86/math-emu/ -FRAME RELAY DLCI/FRAD (Sangoma drivers too) -L: netdev@vger.kernel.org -S: Orphan -F: drivers/net/wan/dlci.c -F: drivers/net/wan/sdla.c - FRAMEBUFFER LAYER M: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> L: dri-devel@lists.freedesktop.org diff --git a/arch/arm/configs/ixp4xx_defconfig b/arch/arm/configs/ixp4xx_defconfig index 27e7c0714b96..0d6edeb27659 100644 --- a/arch/arm/configs/ixp4xx_defconfig +++ b/arch/arm/configs/ixp4xx_defconfig @@ -141,7 +141,6 @@ CONFIG_HDLC_CISCO=m CONFIG_HDLC_FR=m CONFIG_HDLC_PPP=m CONFIG_HDLC_X25=m -CONFIG_DLCI=m CONFIG_WAN_ROUTER_DRIVERS=m CONFIG_ATM_TCP=m # CONFIG_INPUT_KEYBOARD is not set diff --git a/arch/mips/configs/gpr_defconfig b/arch/mips/configs/gpr_defconfig index 599d5604aabe..8a921c8ac233 100644 --- a/arch/mips/configs/gpr_defconfig +++ b/arch/mips/configs/gpr_defconfig @@ -228,7 +228,6 @@ CONFIG_FARSYNC=m CONFIG_DSCC4=m CONFIG_DSCC4_PCISYNC=y CONFIG_DSCC4_PCI_RST=y -CONFIG_DLCI=m CONFIG_LAPBETHER=m # CONFIG_INPUT_KEYBOARD is not set # CONFIG_INPUT_MOUSE is not set diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig index dc69b054181c..30dacce94198 100644 --- a/arch/mips/configs/mtx1_defconfig +++ b/arch/mips/configs/mtx1_defconfig @@ -378,7 +378,6 @@ CONFIG_FARSYNC=m CONFIG_DSCC4=m CONFIG_DSCC4_PCISYNC=y CONFIG_DSCC4_PCI_RST=y -CONFIG_DLCI=m CONFIG_LAPBETHER=m # CONFIG_KEYBOARD_ATKBD is not set CONFIG_KEYBOARD_GPIO=y diff --git a/drivers/net/wan/Kconfig b/drivers/net/wan/Kconfig index 2cf98a732a26..4029fde71a9e 100644 --- a/drivers/net/wan/Kconfig +++ b/drivers/net/wan/Kconfig @@ -321,51 +321,6 @@ config IXP4XX_HSS Say Y here if you want to use built-in HSS ports on IXP4xx processor. -config DLCI - tristate "Frame Relay DLCI support" - help - Support for the Frame Relay protocol. - - Frame Relay is a fast low-cost way to connect to a remote Internet - access provider or to form a private wide area network. The one - physical line from your box to the local "switch" (i.e. the entry - point to the Frame Relay network, usually at the phone company) can - carry several logical point-to-point connections to other computers - connected to the Frame Relay network. For a general explanation of - the protocol, check out <http://www.mplsforum.org/>. - - To use frame relay, you need supporting hardware (called FRAD) and - certain programs from the net-tools package as explained in - <file:Documentation/networking/framerelay.rst>. - - To compile this driver as a module, choose M here: the - module will be called dlci. - -config DLCI_MAX - int "Max DLCI per device" - depends on DLCI - default "8" - help - How many logical point-to-point frame relay connections (the - identifiers of which are called DCLIs) should be handled by each - of your hardware frame relay access devices. - - Go with the default. - -config SDLA - tristate "SDLA (Sangoma S502/S508) support" - depends on DLCI && ISA - help - Driver for the Sangoma S502A, S502E, and S508 Frame Relay Access - Devices. - - These are multi-protocol cards, but only Frame Relay is supported - by the driver at this time. Please read - <file:Documentation/networking/framerelay.rst>. - - To compile this driver as a module, choose M here: the - module will be called sdla. - # X.25 network drivers config LAPBETHER tristate "LAPB over Ethernet driver" diff --git a/drivers/net/wan/Makefile b/drivers/net/wan/Makefile index 5b9dc85eae34..081666c36ca2 100644 --- a/drivers/net/wan/Makefile +++ b/drivers/net/wan/Makefile @@ -21,8 +21,6 @@ obj-$(CONFIG_FARSYNC) += farsync.o obj-$(CONFIG_LANMEDIA) += lmc/ -obj-$(CONFIG_DLCI) += dlci.o -obj-$(CONFIG_SDLA) += sdla.o obj-$(CONFIG_LAPBETHER) += lapbether.o obj-$(CONFIG_SBNI) += sbni.o obj-$(CONFIG_N2) += n2.o diff --git a/drivers/net/wan/dlci.c b/drivers/net/wan/dlci.c deleted file mode 100644 index 3ca4daf63389..000000000000 --- a/drivers/net/wan/dlci.c +++ /dev/null @@ -1,541 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * DLCI Implementation of Frame Relay protocol for Linux, according to - * RFC 1490. This generic device provides en/decapsulation for an - * underlying hardware driver. Routes & IPs are assigned to these - * interfaces. Requires 'dlcicfg' program to create usable - * interfaces, the initial one, 'dlci' is for IOCTL use only. - * - * Version: @(#)dlci.c 0.35 4 Jan 1997 - * - * Author: Mike McLagan <mike.mclagan@linux.org> - * - * Changes: - * - * 0.15 Mike Mclagan Packet freeing, bug in kmalloc call - * DLCI_RET handling - * 0.20 Mike McLagan More conservative on which packets - * are returned for retry and which are - * are dropped. If DLCI_RET_DROP is - * returned from the FRAD, the packet is - * sent back to Linux for re-transmission - * 0.25 Mike McLagan Converted to use SIOC IOCTL calls - * 0.30 Jim Freeman Fixed to allow IPX traffic - * 0.35 Michael Elizabeth Fixed incorrect memcpy_fromfs - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/fcntl.h> -#include <linux/interrupt.h> -#include <linux/ptrace.h> -#include <linux/ioport.h> -#include <linux/in.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/netdevice.h> -#include <linux/skbuff.h> -#include <linux/if_arp.h> -#include <linux/if_frad.h> -#include <linux/bitops.h> - -#include <net/sock.h> - -#include <asm/io.h> -#include <asm/dma.h> -#include <linux/uaccess.h> - -static const char version[] = "DLCI driver v0.35, 4 Jan 1997, mike.mclagan@linux.org"; - -static LIST_HEAD(dlci_devs); - -static void dlci_setup(struct net_device *); - -/* - * these encapsulate the RFC 1490 requirements as well as - * deal with packet transmission and reception, working with - * the upper network layers - */ - -static int dlci_header(struct sk_buff *skb, struct net_device *dev, - unsigned short type, const void *daddr, - const void *saddr, unsigned len) -{ - struct frhdr hdr; - unsigned int hlen; - char *dest; - - hdr.control = FRAD_I_UI; - switch (type) - { - case ETH_P_IP: - hdr.IP_NLPID = FRAD_P_IP; - hlen = sizeof(hdr.control) + sizeof(hdr.IP_NLPID); - break; - - /* feel free to add other types, if necessary */ - - default: - hdr.pad = FRAD_P_PADDING; - hdr.NLPID = FRAD_P_SNAP; - memset(hdr.OUI, 0, sizeof(hdr.OUI)); - hdr.PID = htons(type); - hlen = sizeof(hdr); - break; - } - - dest = skb_push(skb, hlen); - if (!dest) - return 0; - - memcpy(dest, &hdr, hlen); - - return hlen; -} - -static void dlci_receive(struct sk_buff *skb, struct net_device *dev) -{ - struct frhdr *hdr; - int process, header; - - if (!pskb_may_pull(skb, sizeof(*hdr))) { - netdev_notice(dev, "invalid data no header\n"); - dev->stats.rx_errors++; - kfree_skb(skb); - return; - } - - hdr = (struct frhdr *) skb->data; - process = 0; - header = 0; - skb->dev = dev; - - if (hdr->control != FRAD_I_UI) - { - netdev_notice(dev, "Invalid header flag 0x%02X\n", - hdr->control); - dev->stats.rx_errors++; - } - else - switch (hdr->IP_NLPID) - { - case FRAD_P_PADDING: - if (hdr->NLPID != FRAD_P_SNAP) - { - netdev_notice(dev, "Unsupported NLPID 0x%02X\n", - hdr->NLPID); - dev->stats.rx_errors++; - break; - } - - if (hdr->OUI[0] + hdr->OUI[1] + hdr->OUI[2] != 0) - { - netdev_notice(dev, "Unsupported organizationally unique identifier 0x%02X-%02X-%02X\n", - hdr->OUI[0], - hdr->OUI[1], - hdr->OUI[2]); - dev->stats.rx_errors++; - break; - } - - /* at this point, it's an EtherType frame */ - header = sizeof(struct frhdr); - /* Already in network order ! */ - skb->protocol = hdr->PID; - process = 1; - break; - - case FRAD_P_IP: - header = sizeof(hdr->control) + sizeof(hdr->IP_NLPID); - skb->protocol = htons(ETH_P_IP); - process = 1; - break; - - case FRAD_P_SNAP: - case FRAD_P_Q933: - case FRAD_P_CLNP: - netdev_notice(dev, "Unsupported NLPID 0x%02X\n", - hdr->pad); - dev->stats.rx_errors++; - break; - - default: - netdev_notice(dev, "Invalid pad byte 0x%02X\n", - hdr->pad); - dev->stats.rx_errors++; - break; - } - - if (process) - { - /* we've set up the protocol, so discard the header */ - skb_reset_mac_header(skb); - skb_pull(skb, header); - dev->stats.rx_bytes += skb->len; - netif_rx(skb); - dev->stats.rx_packets++; - } - else - dev_kfree_skb(skb); -} - -static netdev_tx_t dlci_transmit(struct sk_buff *skb, struct net_device *dev) -{ - struct dlci_local *dlp = netdev_priv(dev); - - if (skb) { - struct netdev_queue *txq = skb_get_tx_queue(dev, skb); - netdev_start_xmit(skb, dlp->slave, txq, false); - } - return NETDEV_TX_OK; -} - -static int dlci_config(struct net_device *dev, struct dlci_conf __user *conf, int get) -{ - struct dlci_conf config; - struct dlci_local *dlp; - struct frad_local *flp; - int err; - - dlp = netdev_priv(dev); - - flp = netdev_priv(dlp->slave); - - if (!get) - { - if (copy_from_user(&config, conf, sizeof(struct dlci_conf))) - return -EFAULT; - if (config.flags & ~DLCI_VALID_FLAGS) - return -EINVAL; - memcpy(&dlp->config, &config, sizeof(struct dlci_conf)); - dlp->configured = 1; - } - - err = (*flp->dlci_conf)(dlp->slave, dev, get); - if (err) - return err; - - if (get) - { - if (copy_to_user(conf, &dlp->config, sizeof(struct dlci_conf))) - return -EFAULT; - } - - return 0; -} - -static int dlci_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -{ - struct dlci_local *dlp; - - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - - dlp = netdev_priv(dev); - - switch (cmd) - { - case DLCI_GET_SLAVE: - if (!*(short *)(dev->dev_addr)) - return -EINVAL; - - strncpy(ifr->ifr_slave, dlp->slave->name, sizeof(ifr->ifr_slave)); - break; - - case DLCI_GET_CONF: - case DLCI_SET_CONF: - if (!*(short *)(dev->dev_addr)) - return -EINVAL; - - return dlci_config(dev, ifr->ifr_data, cmd == DLCI_GET_CONF); - - default: - return -EOPNOTSUPP; - } - return 0; -} - -static int dlci_change_mtu(struct net_device *dev, int new_mtu) -{ - struct dlci_local *dlp = netdev_priv(dev); - - return dev_set_mtu(dlp->slave, new_mtu); -} - -static int dlci_open(struct net_device *dev) -{ - struct dlci_local *dlp; - struct frad_local *flp; - int err; - - dlp = netdev_priv(dev); - - if (!*(short *)(dev->dev_addr)) - return -EINVAL; - - if (!netif_running(dlp->slave)) - return -ENOTCONN; - - flp = netdev_priv(dlp->slave); - err = (*flp->activate)(dlp->slave, dev); - if (err) - return err; - - netif_start_queue(dev); - - return 0; -} - -static int dlci_close(struct net_device *dev) -{ - struct dlci_local *dlp; - struct frad_local *flp; - - netif_stop_queue(dev); - - dlp = netdev_priv(dev); - - flp = netdev_priv(dlp->slave); - (*flp->deactivate)(dlp->slave, dev); - - return 0; -} - -static int dlci_add(struct dlci_add *dlci) -{ - struct net_device *master, *slave; - struct dlci_local *dlp; - struct frad_local *flp; - int err = -EINVAL; - - - /* validate slave device */ - slave = dev_get_by_name(&init_net, dlci->devname); - if (!slave) - return -ENODEV; - - if (slave->type != ARPHRD_FRAD || netdev_priv(slave) == NULL) - goto err1; - - /* create device name */ - master = alloc_netdev(sizeof(struct dlci_local), "dlci%d", - NET_NAME_UNKNOWN, dlci_setup); - if (!master) { - err = -ENOMEM; - goto err1; - } - - /* make sure same slave not already registered */ - rtnl_lock(); - list_for_each_entry(dlp, &dlci_devs, list) { - if (dlp->slave == slave) { - err = -EBUSY; - goto err2; - } - } - - *(short *)(master->dev_addr) = dlci->dlci; - - dlp = netdev_priv(master); - dlp->slave = slave; - dlp->master = master; - - flp = netdev_priv(slave); - err = (*flp->assoc)(slave, master); - if (err < 0) - goto err2; - - err = register_netdevice(master); - if (err < 0) - goto err2; - - strcpy(dlci->devname, master->name); - - list_add(&dlp->list, &dlci_devs); - rtnl_unlock(); - - return 0; - - err2: - rtnl_unlock(); - free_netdev(master); - err1: - dev_put(slave); - return err; -} - -static int dlci_del(struct dlci_add *dlci) -{ - struct dlci_local *dlp; - struct frad_local *flp; - struct net_device *master, *slave; - int err; - bool found = false; - - rtnl_lock(); - - /* validate slave device */ - master = __dev_get_by_name(&init_net, dlci->devname); - if (!master) { - err = -ENODEV; - goto out; - } - - list_for_each_entry(dlp, &dlci_devs, list) { - if (dlp->master == master) { - found = true; - break; - } - } - if (!found) { - err = -ENODEV; - goto out; - } - - if (netif_running(master)) { - err = -EBUSY; - goto out; - } - - dlp = netdev_priv(master); - slave = dlp->slave; - flp = netdev_priv(slave); - - err = (*flp->deassoc)(slave, master); - if (!err) { - list_del(&dlp->list); - - unregister_netdevice(master); - - dev_put(slave); - } -out: - rtnl_unlock(); - return err; -} - -static int dlci_ioctl(unsigned int cmd, void __user *arg) -{ - struct dlci_add add; - int err; - - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - - if (copy_from_user(&add, arg, sizeof(struct dlci_add))) - return -EFAULT; - - switch (cmd) - { - case SIOCADDDLCI: - err = dlci_add(&add); - - if (!err) - if (copy_to_user(arg, &add, sizeof(struct dlci_add))) - return -EFAULT; - break; - - case SIOCDELDLCI: - err = dlci_del(&add); - break; - - default: - err = -EINVAL; - } - - return err; -} - -static const struct header_ops dlci_header_ops = { - .create = dlci_header, -}; - -static const struct net_device_ops dlci_netdev_ops = { - .ndo_open = dlci_open, - .ndo_stop = dlci_close, - .ndo_do_ioctl = dlci_dev_ioctl, - .ndo_start_xmit = dlci_transmit, - .ndo_change_mtu = dlci_change_mtu, -}; - -static void dlci_setup(struct net_device *dev) -{ - struct dlci_local *dlp = netdev_priv(dev); - - dev->flags = 0; - dev->header_ops = &dlci_header_ops; - dev->netdev_ops = &dlci_netdev_ops; - dev->needs_free_netdev = true; - - dlp->receive = dlci_receive; - - dev->type = ARPHRD_DLCI; - dev->hard_header_len = sizeof(struct frhdr); - dev->addr_len = sizeof(short); - -} - -/* if slave is unregistering, then cleanup master */ -static int dlci_dev_event(struct notifier_block *unused, - unsigned long event, void *ptr) -{ - struct net_device *dev = netdev_notifier_info_to_dev(ptr); - - if (dev_net(dev) != &init_net) - return NOTIFY_DONE; - - if (event == NETDEV_UNREGISTER) { - struct dlci_local *dlp; - - list_for_each_entry(dlp, &dlci_devs, list) { - if (dlp->slave == dev) { - list_del(&dlp->list); - unregister_netdevice(dlp->master); - dev_put(dlp->slave); - break; - } - } - } - return NOTIFY_DONE; -} - -static struct notifier_block dlci_notifier = { - .notifier_call = dlci_dev_event, -}; - -static int __init init_dlci(void) -{ - dlci_ioctl_set(dlci_ioctl); - register_netdevice_notifier(&dlci_notifier); - - printk("%s.\n", version); - - return 0; -} - -static void __exit dlci_exit(void) -{ - struct dlci_local *dlp, *nxt; - - dlci_ioctl_set(NULL); - unregister_netdevice_notifier(&dlci_notifier); - - rtnl_lock(); - list_for_each_entry_safe(dlp, nxt, &dlci_devs, list) { - unregister_netdevice(dlp->master); - dev_put(dlp->slave); - } - rtnl_unlock(); -} - -module_init(init_dlci); -module_exit(dlci_exit); - -MODULE_AUTHOR("Mike McLagan"); -MODULE_DESCRIPTION("Frame Relay DLCI layer"); -MODULE_LICENSE("GPL"); diff --git a/drivers/net/wan/sdla.c b/drivers/net/wan/sdla.c deleted file mode 100644 index bc2c1c7fb1a4..000000000000 --- a/drivers/net/wan/sdla.c +++ /dev/null @@ -1,1655 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * SDLA An implementation of a driver for the Sangoma S502/S508 series - * multi-protocol PC interface card. Initial offering is with - * the DLCI driver, providing Frame Relay support for linux. - * - * Global definitions for the Frame relay interface. - * - * Version: @(#)sdla.c 0.30 12 Sep 1996 - * - * Credits: Sangoma Technologies, for the use of 2 cards for an extended - * period of time. - * David Mandelstam <dm@sangoma.com> for getting me started on - * this project, and incentive to complete it. - * Gene Kozen <74604.152@compuserve.com> for providing me with - * important information about the cards. - * - * Author: Mike McLagan <mike.mclagan@linux.org> - * - * Changes: - * 0.15 Mike McLagan Improved error handling, packet dropping - * 0.20 Mike McLagan New transmit/receive flags for config - * If in FR mode, don't accept packets from - * non DLCI devices. - * 0.25 Mike McLagan Fixed problem with rejecting packets - * from non DLCI devices. - * 0.30 Mike McLagan Fixed kernel panic when used with modified - * ifconfig - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/fcntl.h> -#include <linux/interrupt.h> -#include <linux/ptrace.h> -#include <linux/ioport.h> -#include <linux/in.h> -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/timer.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/netdevice.h> -#include <linux/skbuff.h> -#include <linux/if_arp.h> -#include <linux/if_frad.h> -#include <linux/sdla.h> -#include <linux/bitops.h> - -#include <asm/io.h> -#include <asm/dma.h> -#include <linux/uaccess.h> - -static const char* version = "SDLA driver v0.30, 12 Sep 1996, mike.mclagan@linux.org"; - -static unsigned int valid_port[] = { 0x250, 0x270, 0x280, 0x300, 0x350, 0x360, 0x380, 0x390}; - -static unsigned int valid_mem[] = { - 0xA0000, 0xA2000, 0xA4000, 0xA6000, 0xA8000, 0xAA000, 0xAC000, 0xAE000, - 0xB0000, 0xB2000, 0xB4000, 0xB6000, 0xB8000, 0xBA000, 0xBC000, 0xBE000, - 0xC0000, 0xC2000, 0xC4000, 0xC6000, 0xC8000, 0xCA000, 0xCC000, 0xCE000, - 0xD0000, 0xD2000, 0xD4000, 0xD6000, 0xD8000, 0xDA000, 0xDC000, 0xDE000, - 0xE0000, 0xE2000, 0xE4000, 0xE6000, 0xE8000, 0xEA000, 0xEC000, 0xEE000}; - -static DEFINE_SPINLOCK(sdla_lock); - -/********************************************************* - * - * these are the core routines that access the card itself - * - *********************************************************/ - -#define SDLA_WINDOW(dev,addr) outb((((addr) >> 13) & 0x1F), (dev)->base_addr + SDLA_REG_Z80_WINDOW) - -static void __sdla_read(struct net_device *dev, int addr, void *buf, short len) -{ - char *temp; - const void *base; - int offset, bytes; - - temp = buf; - while(len) - { - offset = addr & SDLA_ADDR_MASK; - bytes = offset + len > SDLA_WINDOW_SIZE ? SDLA_WINDOW_SIZE - offset : len; - base = (const void *) (dev->mem_start + offset); - - SDLA_WINDOW(dev, addr); - memcpy(temp, base, bytes); - - addr += bytes; - temp += bytes; - len -= bytes; - } -} - -static void sdla_read(struct net_device *dev, int addr, void *buf, short len) -{ - unsigned long flags; - spin_lock_irqsave(&sdla_lock, flags); - __sdla_read(dev, addr, buf, len); - spin_unlock_irqrestore(&sdla_lock, flags); -} - -static void __sdla_write(struct net_device *dev, int addr, - const void *buf, short len) -{ - const char *temp; - void *base; - int offset, bytes; - - temp = buf; - while(len) - { - offset = addr & SDLA_ADDR_MASK; - bytes = offset + len > SDLA_WINDOW_SIZE ? SDLA_WINDOW_SIZE - offset : len; - base = (void *) (dev->mem_start + offset); - - SDLA_WINDOW(dev, addr); - memcpy(base, temp, bytes); - - addr += bytes; - temp += bytes; - len -= bytes; - } -} - -static void sdla_write(struct net_device *dev, int addr, - const void *buf, short len) -{ - unsigned long flags; - - spin_lock_irqsave(&sdla_lock, flags); - __sdla_write(dev, addr, buf, len); - spin_unlock_irqrestore(&sdla_lock, flags); -} - - -static void sdla_clear(struct net_device *dev) -{ - unsigned long flags; - char *base; - int len, addr, bytes; - - len = 65536; - addr = 0; - bytes = SDLA_WINDOW_SIZE; - base = (void *) dev->mem_start; - - spin_lock_irqsave(&sdla_lock, flags); - while(len) - { - SDLA_WINDOW(dev, addr); - memset(base, 0, bytes); - - addr += bytes; - len -= bytes; - } - spin_unlock_irqrestore(&sdla_lock, flags); - -} - -static char sdla_byte(struct net_device *dev, int addr) -{ - unsigned long flags; - char byte, *temp; - - temp = (void *) (dev->mem_start + (addr & SDLA_ADDR_MASK)); - - spin_lock_irqsave(&sdla_lock, flags); - SDLA_WINDOW(dev, addr); - byte = *temp; - spin_unlock_irqrestore(&sdla_lock, flags); - - return byte; -} - -static void sdla_stop(struct net_device *dev) -{ - struct frad_local *flp; - - flp = netdev_priv(dev); - switch(flp->type) - { - case SDLA_S502A: - outb(SDLA_S502A_HALT, dev->base_addr + SDLA_REG_CONTROL); - flp->state = SDLA_HALT; - break; - case SDLA_S502E: - outb(SDLA_HALT, dev->base_addr + SDLA_REG_Z80_CONTROL); - outb(SDLA_S502E_ENABLE, dev->base_addr + SDLA_REG_CONTROL); - flp->state = SDLA_S502E_ENABLE; - break; - case SDLA_S507: - flp->state &= ~SDLA_CPUEN; - outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); - break; - case SDLA_S508: - flp->state &= ~SDLA_CPUEN; - outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); - break; - } -} - -static void sdla_start(struct net_device *dev) -{ - struct frad_local *flp; - - flp = netdev_priv(dev); - switch(flp->type) - { - case SDLA_S502A: - outb(SDLA_S502A_NMI, dev->base_addr + SDLA_REG_CONTROL); - outb(SDLA_S502A_START, dev->base_addr + SDLA_REG_CONTROL); - flp->state = SDLA_S502A_START; - break; - case SDLA_S502E: - outb(SDLA_S502E_CPUEN, dev->base_addr + SDLA_REG_Z80_CONTROL); - outb(0x00, dev->base_addr + SDLA_REG_CONTROL); - flp->state = 0; - break; - case SDLA_S507: - flp->state |= SDLA_CPUEN; - outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); - break; - case SDLA_S508: - flp->state |= SDLA_CPUEN; - outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); - break; - } -} - -/**************************************************** - * - * this is used for the S502A/E cards to determine - * the speed of the onboard CPU. Calibration is - * necessary for the Frame Relay code uploaded - * later. Incorrect results cause timing problems - * with link checks & status messages - * - ***************************************************/ - -static int sdla_z80_poll(struct net_device *dev, int z80_addr, int jiffs, char resp1, char resp2) -{ - unsigned long start, done, now; - char resp, *temp; - - start = now = jiffies; - done = jiffies + jiffs; - - temp = (void *)dev->mem_start; - temp += z80_addr & SDLA_ADDR_MASK; - - resp = ~resp1; - while (time_before(jiffies, done) && (resp != resp1) && (!resp2 || (resp != resp2))) - { - if (jiffies != now) - { - SDLA_WINDOW(dev, z80_addr); - now = jiffies; - resp = *temp; - } - } - return time_before(jiffies, done) ? jiffies - start : -1; -} - -/* constants for Z80 CPU speed */ -#define Z80_READY '1' /* Z80 is ready to begin */ -#define LOADER_READY '2' /* driver is ready to begin */ -#define Z80_SCC_OK '3' /* SCC is on board */ -#define Z80_SCC_BAD '4' /* SCC was not found */ - -static int sdla_cpuspeed(struct net_device *dev, struct ifreq *ifr) -{ - int jiffs; - char data; - - sdla_start(dev); - if (sdla_z80_poll(dev, 0, 3*HZ, Z80_READY, 0) < 0) - return -EIO; - - data = LOADER_READY; - sdla_write(dev, 0, &data, 1); - - if ((jiffs = sdla_z80_poll(dev, 0, 8*HZ, Z80_SCC_OK, Z80_SCC_BAD)) < 0) - return -EIO; - - sdla_stop(dev); - sdla_read(dev, 0, &data, 1); - - if (data == Z80_SCC_BAD) - { - printk("%s: SCC bad\n", dev->name); - return -EIO; - } - - if (data != Z80_SCC_OK) - return -EINVAL; - - if (jiffs < 165) - ifr->ifr_mtu = SDLA_CPU_16M; - else if (jiffs < 220) - ifr->ifr_mtu = SDLA_CPU_10M; - else if (jiffs < 258) - ifr->ifr_mtu = SDLA_CPU_8M; - else if (jiffs < 357) - ifr->ifr_mtu = SDLA_CPU_7M; - else if (jiffs < 467) - ifr->ifr_mtu = SDLA_CPU_5M; - else - ifr->ifr_mtu = SDLA_CPU_3M; - - return 0; -} - -/************************************************ - * - * Direct interaction with the Frame Relay code - * starts here. - * - ************************************************/ - -struct _dlci_stat -{ - short dlci; - char flags; -} __packed; - -struct _frad_stat -{ - char flags; - struct _dlci_stat dlcis[SDLA_MAX_DLCI]; -}; - -static void sdla_errors(struct net_device *dev, int cmd, int dlci, int ret, int len, void *data) -{ - struct _dlci_stat *pstatus; - short *pdlci; - int i; - char *state, line[30]; - - switch (ret) - { - case SDLA_RET_MODEM: - state = data; - if (*state & SDLA_MODEM_DCD_LOW) - netdev_info(dev, "Modem DCD unexpectedly low!\n"); - if (*state & SDLA_MODEM_CTS_LOW) - netdev_info(dev, "Modem CTS unexpectedly low!\n"); - /* I should probably do something about this! */ - break; - - case SDLA_RET_CHANNEL_OFF: - netdev_info(dev, "Channel became inoperative!\n"); - /* same here */ - break; - - case SDLA_RET_CHANNEL_ON: - netdev_info(dev, "Channel became operative!\n"); - /* same here */ - break; - - case SDLA_RET_DLCI_STATUS: - netdev_info(dev, "Status change reported by Access Node\n"); - len /= sizeof(struct _dlci_stat); - for(pstatus = data, i=0;i < len;i++,pstatus++) - { - if (pstatus->flags & SDLA_DLCI_NEW) - state = "new"; - else if (pstatus->flags & SDLA_DLCI_DELETED) - state = "deleted"; - else if (pstatus->flags & SDLA_DLCI_ACTIVE) - state = "active"; - else - { - sprintf(line, "unknown status: %02X", pstatus->flags); - state = line; - } - netdev_info(dev, "DLCI %i: %s\n", - pstatus->dlci, state); - /* same here */ - } - break; - - case SDLA_RET_DLCI_UNKNOWN: - netdev_info(dev, "Received unknown DLCIs:"); - len /= sizeof(short); - for(pdlci = data,i=0;i < len;i++,pdlci++) - pr_cont(" %i", *pdlci); - pr_cont("\n"); - break; - - case SDLA_RET_TIMEOUT: - netdev_err(dev, "Command timed out!\n"); - break; - - case SDLA_RET_BUF_OVERSIZE: - netdev_info(dev, "Bc/CIR overflow, acceptable size is %i\n", - len); - break; - - case SDLA_RET_BUF_TOO_BIG: - netdev_info(dev, "Buffer size over specified max of %i\n", - len); - break; - - case SDLA_RET_CHANNEL_INACTIVE: - case SDLA_RET_DLCI_INACTIVE: - case SDLA_RET_CIR_OVERFLOW: - case SDLA_RET_NO_BUFS: - if (cmd == SDLA_INFORMATION_WRITE) - break; - fallthrough; - - default: - netdev_dbg(dev, "Cmd 0x%02X generated return code 0x%02X\n", - cmd, ret); - /* Further processing could be done here */ - break; - } -} - -static int sdla_cmd(struct net_device *dev, int cmd, short dlci, short flags, - void *inbuf, short inlen, void *outbuf, short *outlen) -{ - static struct _frad_stat status; - struct frad_local *flp; - struct sdla_cmd *cmd_buf; - unsigned long pflags; - unsigned long jiffs; - int ret, waiting, len; - long window; - - flp = netdev_priv(dev); - window = flp->type == SDLA_S508 ? SDLA_508_CMD_BUF : SDLA_502_CMD_BUF; - cmd_buf = (struct sdla_cmd *)(dev->mem_start + (window & SDLA_ADDR_MASK)); - ret = 0; - len = 0; - jiffs = jiffies + HZ; /* 1 second is plenty */ - - spin_lock_irqsave(&sdla_lock, pflags); - SDLA_WINDOW(dev, window); - cmd_buf->cmd = cmd; - cmd_buf->dlci = dlci; - cmd_buf->flags = flags; - - if (inbuf) - memcpy(cmd_buf->data, inbuf, inlen); - - cmd_buf->length = inlen; - - cmd_buf->opp_flag = 1; - spin_unlock_irqrestore(&sdla_lock, pflags); - - waiting = 1; - len = 0; - while (waiting && time_before_eq(jiffies, jiffs)) - { - if (waiting++ % 3) - { - spin_lock_irqsave(&sdla_lock, pflags); - SDLA_WINDOW(dev, window); - waiting = ((volatile int)(cmd_buf->opp_flag)); - spin_unlock_irqrestore(&sdla_lock, pflags); - } - } - - if (!waiting) - { - - spin_lock_irqsave(&sdla_lock, pflags); - SDLA_WINDOW(dev, window); - ret = cmd_buf->retval; - len = cmd_buf->length; - if (outbuf && outlen) - { - *outlen = *outlen >= len ? len : *outlen; - - if (*outlen) - memcpy(outbuf, cmd_buf->data, *outlen); - } - - /* This is a local copy that's used for error handling */ - if (ret) - memcpy(&status, cmd_buf->data, len > sizeof(status) ? sizeof(status) : len); - - spin_unlock_irqrestore(&sdla_lock, pflags); - } - else - ret = SDLA_RET_TIMEOUT; - - if (ret != SDLA_RET_OK) - sdla_errors(dev, cmd, dlci, ret, len, &status); - - return ret; -} - -/*********************************************** - * - * these functions are called by the DLCI driver - * - ***********************************************/ - -static int sdla_reconfig(struct net_device *dev); - -static int sdla_activate(struct net_device *slave, struct net_device *master) -{ - struct frad_local *flp; - int i; - - flp = netdev_priv(slave); - - for(i=0;i<CONFIG_DLCI_MAX;i++) - if (flp->master[i] == master) - break; - - if (i == CONFIG_DLCI_MAX) - return -ENODEV; - - flp->dlci[i] = abs(flp->dlci[i]); - - if (netif_running(slave) && (flp->config.station == FRAD_STATION_NODE)) - sdla_cmd(slave, SDLA_ACTIVATE_DLCI, 0, 0, &flp->dlci[i], sizeof(short), NULL, NULL); - - return 0; -} - -static int sdla_deactivate(struct net_device *slave, struct net_device *master) -{ - struct frad_local *flp; - int i; - - flp = netdev_priv(slave); - - for(i=0;i<CONFIG_DLCI_MAX;i++) - if (flp->master[i] == master) - break; - - if (i == CONFIG_DLCI_MAX) - return -ENODEV; - - flp->dlci[i] = -abs(flp->dlci[i]); - - if (netif_running(slave) && (flp->config.station == FRAD_STATION_NODE)) - sdla_cmd(slave, SDLA_DEACTIVATE_DLCI, 0, 0, &flp->dlci[i], sizeof(short), NULL, NULL); - - return 0; -} - -static int sdla_assoc(struct net_device *slave, struct net_device *master) -{ - struct frad_local *flp; - int i; - - if (master->type != ARPHRD_DLCI) - return -EINVAL; - - flp = netdev_priv(slave); - - for(i=0;i<CONFIG_DLCI_MAX;i++) - { - if (!flp->master[i]) - break; - if (abs(flp->dlci[i]) == *(short *)(master->dev_addr)) - return -EADDRINUSE; - } - - if (i == CONFIG_DLCI_MAX) - return -EMLINK; /* #### Alan: Comments on this ?? */ - - - flp->master[i] = master; - flp->dlci[i] = -*(short *)(master->dev_addr); - master->mtu = slave->mtu; - - if (netif_running(slave)) { - if (flp->config.station == FRAD_STATION_CPE) - sdla_reconfig(slave); - else - sdla_cmd(slave, SDLA_ADD_DLCI, 0, 0, master->dev_addr, sizeof(short), NULL, NULL); - } - - return 0; -} - -static int sdla_deassoc(struct net_device *slave, struct net_device *master) -{ - struct frad_local *flp; - int i; - - flp = netdev_priv(slave); - - for(i=0;i<CONFIG_DLCI_MAX;i++) - if (flp->master[i] == master) - break; - - if (i == CONFIG_DLCI_MAX) - return -ENODEV; - - flp->master[i] = NULL; - flp->dlci[i] = 0; - - - if (netif_running(slave)) { - if (flp->config.station == FRAD_STATION_CPE) - sdla_reconfig(slave); - else - sdla_cmd(slave, SDLA_DELETE_DLCI, 0, 0, master->dev_addr, sizeof(short), NULL, NULL); - } - - return 0; -} - -static int sdla_dlci_conf(struct net_device *slave, struct net_device *master, int get) -{ - struct frad_local *flp; - struct dlci_local *dlp; - int i; - short len, ret; - - flp = netdev_priv(slave); - - for(i=0;i<CONFIG_DLCI_MAX;i++) - if (flp->master[i] == master) - break; - - if (i == CONFIG_DLCI_MAX) - return -ENODEV; - - dlp = netdev_priv(master); - - ret = SDLA_RET_OK; - len = sizeof(struct dlci_conf); - if (netif_running(slave)) { - if (get) - ret = sdla_cmd(slave, SDLA_READ_DLCI_CONFIGURATION, abs(flp->dlci[i]), 0, - NULL, 0, &dlp->config, &len); - else - ret = sdla_cmd(slave, SDLA_SET_DLCI_CONFIGURATION, abs(flp->dlci[i]), 0, - &dlp->config, sizeof(struct dlci_conf) - 4 * sizeof(short), NULL, NULL); - } - - return ret == SDLA_RET_OK ? 0 : -EIO; -} - -/************************** - * - * now for the Linux driver - * - **************************/ - -/* NOTE: the DLCI driver deals with freeing the SKB!! */ -static netdev_tx_t sdla_transmit(struct sk_buff *skb, - struct net_device *dev) -{ - struct frad_local *flp; - int ret, addr, accept, i; - short size; - unsigned long flags; - struct buf_entry *pbuf; - - flp = netdev_priv(dev); - ret = 0; - accept = 1; - - netif_stop_queue(dev); - - /* - * stupid GateD insists on setting up the multicast router thru us - * and we're ill equipped to handle a non Frame Relay packet at this - * time! - */ - - accept = 1; - switch (dev->type) - { - case ARPHRD_FRAD: - if (skb->dev->type != ARPHRD_DLCI) - { - netdev_warn(dev, "Non DLCI device, type %i, tried to send on FRAD module\n", - skb->dev->type); - accept = 0; - } - break; - default: - netdev_warn(dev, "unknown firmware type 0x%04X\n", - dev->type); - accept = 0; - break; - } - if (accept) - { - /* this is frame specific, but till there's a PPP module, it's the default */ - switch (flp->type) - { - case SDLA_S502A: - case SDLA_S502E: - ret = sdla_cmd(dev, SDLA_INFORMATION_WRITE, *(short *)(skb->dev->dev_addr), 0, skb->data, skb->len, NULL, NULL); - break; - case SDLA_S508: - size = sizeof(addr); - ret = sdla_cmd(dev, SDLA_INFORMATION_WRITE, *(short *)(skb->dev->dev_addr), 0, NULL, skb->len, &addr, &size); - if (ret == SDLA_RET_OK) - { - - spin_lock_irqsave(&sdla_lock, flags); - SDLA_WINDOW(dev, addr); - pbuf = (void *)(dev->mem_start + (addr & SDLA_ADDR_MASK)); - __sdla_write(dev, pbuf->buf_addr, skb->data, skb->len); - SDLA_WINDOW(dev, addr); - pbuf->opp_flag = 1; - spin_unlock_irqrestore(&sdla_lock, flags); - } - break; - } - - switch (ret) - { - case SDLA_RET_OK: - dev->stats.tx_packets++; - break; - - case SDLA_RET_CIR_OVERFLOW: - case SDLA_RET_BUF_OVERSIZE: - case SDLA_RET_NO_BUFS: - dev->stats.tx_dropped++; - break; - - default: - dev->stats.tx_errors++; - break; - } - } - netif_wake_queue(dev); - for(i=0;i<CONFIG_DLCI_MAX;i++) - { - if(flp->master[i]!=NULL) - netif_wake_queue(flp->master[i]); - } - - dev_kfree_skb(skb); - return NETDEV_TX_OK; -} - -static void sdla_receive(struct net_device *dev) -{ - struct net_device *master; - struct frad_local *flp; - struct dlci_local *dlp; - struct sk_buff *skb; - - struct sdla_cmd *cmd; - struct buf_info *pbufi; - struct buf_entry *pbuf; - - unsigned long flags; - int i=0, received, success, addr, buf_base, buf_top; - short dlci, len, len2, split; - - flp = netdev_priv(dev); - success = 1; - received = addr = buf_top = buf_base = 0; - len = dlci = 0; - skb = NULL; - master = NULL; - cmd = NULL; - pbufi = NULL; - pbuf = NULL; - - spin_lock_irqsave(&sdla_lock, flags); - - switch (flp->type) - { - case SDLA_S502A: - case SDLA_S502E: - cmd = (void *) (dev->mem_start + (SDLA_502_RCV_BUF & SDLA_ADDR_MASK)); - SDLA_WINDOW(dev, SDLA_502_RCV_BUF); - success = cmd->opp_flag; - if (!success) - break; - - dlci = cmd->dlci; - len = cmd->length; - break; - - case SDLA_S508: - pbufi = (void *) (dev->mem_start + (SDLA_508_RXBUF_INFO & SDLA_ADDR_MASK)); - SDLA_WINDOW(dev, SDLA_508_RXBUF_INFO); - pbuf = (void *) (dev->mem_start + ((pbufi->rse_base + flp->buffer * sizeof(struct buf_entry)) & SDLA_ADDR_MASK)); - success = pbuf->opp_flag; - if (!success) - break; - - buf_top = pbufi->buf_top; - buf_base = pbufi->buf_base; - dlci = pbuf->dlci; - len = pbuf->length; - addr = pbuf->buf_addr; - break; - } - - /* common code, find the DLCI and get the SKB */ - if (success) - { - for (i=0;i<CONFIG_DLCI_MAX;i++) - if (flp->dlci[i] == dlci) - break; - - if (i == CONFIG_DLCI_MAX) - { - netdev_notice(dev, "Received packet from invalid DLCI %i, ignoring\n", - dlci); - dev->stats.rx_errors++; - success = 0; - } - } - - if (success) - { - master = flp->master[i]; - skb = dev_alloc_skb(len + sizeof(struct frhdr)); - if (skb == NULL) - { - netdev_notice(dev, "Memory squeeze, dropping packet\n"); - dev->stats.rx_dropped++; - success = 0; - } - else - skb_reserve(skb, sizeof(struct frhdr)); - } - - /* pick up the data */ - switch (flp->type) - { - case SDLA_S502A: - case SDLA_S502E: - if (success) - __sdla_read(dev, SDLA_502_RCV_BUF + SDLA_502_DATA_OFS, skb_put(skb,len), len); - - SDLA_WINDOW(dev, SDLA_502_RCV_BUF); - cmd->opp_flag = 0; - break; - - case SDLA_S508: - if (success) - { - /* is this buffer split off the end of the internal ring buffer */ - split = addr + len > buf_top + 1 ? len - (buf_top - addr + 1) : 0; - len2 = len - split; - - __sdla_read(dev, addr, skb_put(skb, len2), len2); - if (split) - __sdla_read(dev, buf_base, skb_put(skb, split), split); - } - - /* increment the buffer we're looking at */ - SDLA_WINDOW(dev, SDLA_508_RXBUF_INFO); - flp->buffer = (flp->buffer + 1) % pbufi->rse_num; - pbuf->opp_flag = 0; - break; - } - - if (success) - { - dev->stats.rx_packets++; - dlp = netdev_priv(master); - (*dlp->receive)(skb, master); - } - - spin_unlock_irqrestore(&sdla_lock, flags); -} - -static irqreturn_t sdla_isr(int dummy, void *dev_id) -{ - struct net_device *dev; - struct frad_local *flp; - char byte; - - dev = dev_id; - - flp = netdev_priv(dev); - - if (!flp->initialized) - { - netdev_warn(dev, "irq %d for uninitialized device\n", dev->irq); - return IRQ_NONE; - } - - byte = sdla_byte(dev, flp->type == SDLA_S508 ? SDLA_508_IRQ_INTERFACE : SDLA_502_IRQ_INTERFACE); - switch (byte) - { - case SDLA_INTR_RX: - sdla_receive(dev); - break; - - /* the command will get an error return, which is processed above */ - case SDLA_INTR_MODEM: - case SDLA_INTR_STATUS: - sdla_cmd(dev, SDLA_READ_DLC_STATUS, 0, 0, NULL, 0, NULL, NULL); - break; - - case SDLA_INTR_TX: - case SDLA_INTR_COMPLETE: - case SDLA_INTR_TIMER: - netdev_warn(dev, "invalid irq flag 0x%02X\n", byte); - break; - } - - /* the S502E requires a manual acknowledgement of the interrupt */ - if (flp->type == SDLA_S502E) - { - flp->state &= ~SDLA_S502E_INTACK; - outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); - flp->state |= SDLA_S502E_INTACK; - outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); - } - - /* this clears the byte, informing the Z80 we're done */ - byte = 0; - sdla_write(dev, flp->type == SDLA_S508 ? SDLA_508_IRQ_INTERFACE : SDLA_502_IRQ_INTERFACE, &byte, sizeof(byte)); - return IRQ_HANDLED; -} - -static void sdla_poll(struct timer_list *t) -{ - struct frad_local *flp = from_timer(flp, t, timer); - struct net_device *dev = flp->dev; - - if (sdla_byte(dev, SDLA_502_RCV_BUF)) - sdla_receive(dev); - - flp->timer.expires = 1; - add_timer(&flp->timer); -} - -static int sdla_close(struct net_device *dev) -{ - struct frad_local *flp; - struct intr_info intr; - int len, i; - short dlcis[CONFIG_DLCI_MAX]; - - flp = netdev_priv(dev); - - len = 0; - for(i=0;i<CONFIG_DLCI_MAX;i++) - if (flp->dlci[i]) - dlcis[len++] = abs(flp->dlci[i]); - len *= 2; - - if (flp->config.station == FRAD_STATION_NODE) - { - for(i=0;i<CONFIG_DLCI_MAX;i++) - if (flp->dlci[i] > 0) - sdla_cmd(dev, SDLA_DEACTIVATE_DLCI, 0, 0, dlcis, len, NULL, NULL); - sdla_cmd(dev, SDLA_DELETE_DLCI, 0, 0, &flp->dlci[i], sizeof(flp->dlci[i]), NULL, NULL); - } - - memset(&intr, 0, sizeof(intr)); - /* let's start up the reception */ - switch(flp->type) - { - case SDLA_S502A: - del_timer(&flp->timer); - break; - - case SDLA_S502E: - sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(char) + sizeof(short), NULL, NULL); - flp->state &= ~SDLA_S502E_INTACK; - outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); - break; - - case SDLA_S507: - break; - - case SDLA_S508: - sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(struct intr_info), NULL, NULL); - flp->state &= ~SDLA_S508_INTEN; - outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); - break; - } - - sdla_cmd(dev, SDLA_DISABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL); - - netif_stop_queue(dev); - - return 0; -} - -struct conf_data { - struct frad_conf config; - short dlci[CONFIG_DLCI_MAX]; -}; - -static int sdla_open(struct net_device *dev) -{ - struct frad_local *flp; - struct dlci_local *dlp; - struct conf_data data; - struct intr_info intr; - int len, i; - char byte; - - flp = netdev_priv(dev); - - if (!flp->initialized) - return -EPERM; - - if (!flp->configured) - return -EPERM; - - /* time to send in the configuration */ - len = 0; - for(i=0;i<CONFIG_DLCI_MAX;i++) - if (flp->dlci[i]) - data.dlci[len++] = abs(flp->dlci[i]); - len *= 2; - - memcpy(&data.config, &flp->config, sizeof(struct frad_conf)); - len += sizeof(struct frad_conf); - - sdla_cmd(dev, SDLA_DISABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL); - sdla_cmd(dev, SDLA_SET_DLCI_CONFIGURATION, 0, 0, &data, len, NULL, NULL); - - if (flp->type == SDLA_S508) - flp->buffer = 0; - - sdla_cmd(dev, SDLA_ENABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL); - - /* let's start up the reception */ - memset(&intr, 0, sizeof(intr)); - switch(flp->type) - { - case SDLA_S502A: - flp->timer.expires = 1; - add_timer(&flp->timer); - break; - - case SDLA_S502E: - flp->state |= SDLA_S502E_ENABLE; - outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); - flp->state |= SDLA_S502E_INTACK; - outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); - byte = 0; - sdla_write(dev, SDLA_502_IRQ_INTERFACE, &byte, sizeof(byte)); - intr.flags = SDLA_INTR_RX | SDLA_INTR_STATUS | SDLA_INTR_MODEM; - sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(char) + sizeof(short), NULL, NULL); - break; - - case SDLA_S507: - break; - - case SDLA_S508: - flp->state |= SDLA_S508_INTEN; - outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); - byte = 0; - sdla_write(dev, SDLA_508_IRQ_INTERFACE, &byte, sizeof(byte)); - intr.flags = SDLA_INTR_RX | SDLA_INTR_STATUS | SDLA_INTR_MODEM; - intr.irq = dev->irq; - sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(struct intr_info), NULL, NULL); - break; - } - - if (flp->config.station == FRAD_STATION_CPE) - { - byte = SDLA_ICS_STATUS_ENQ; - sdla_cmd(dev, SDLA_ISSUE_IN_CHANNEL_SIGNAL, 0, 0, &byte, sizeof(byte), NULL, NULL); - } - else - { - sdla_cmd(dev, SDLA_ADD_DLCI, 0, 0, data.dlci, len - sizeof(struct frad_conf), NULL, NULL); - for(i=0;i<CONFIG_DLCI_MAX;i++) - if (flp->dlci[i] > 0) - sdla_cmd(dev, SDLA_ACTIVATE_DLCI, 0, 0, &flp->dlci[i], 2*sizeof(flp->dlci[i]), NULL, NULL); - } - - /* configure any specific DLCI settings */ - for(i=0;i<CONFIG_DLCI_MAX;i++) - if (flp->dlci[i]) - { - dlp = netdev_priv(flp->master[i]); - if (dlp->configured) - sdla_cmd(dev, SDLA_SET_DLCI_CONFIGURATION, abs(flp->dlci[i]), 0, &dlp->config, sizeof(struct dlci_conf), NULL, NULL); - } - - netif_start_queue(dev); - - return 0; -} - -static int sdla_config(struct net_device *dev, struct frad_conf __user *conf, int get) -{ - struct frad_local *flp; - struct conf_data data; - int i; - short size; - - if (dev->type == 0xFFFF) - return -EUNATCH; - - flp = netdev_priv(dev); - - if (!get) - { - if (netif_running(dev)) - return -EBUSY; - - if(copy_from_user(&data.config, conf, sizeof(struct frad_conf))) - return -EFAULT; - - if (data.config.station & ~FRAD_STATION_NODE) - return -EINVAL; - - if (data.config.flags & ~FRAD_VALID_FLAGS) - return -EINVAL; - - if ((data.config.kbaud < 0) || - ((data.config.kbaud > 128) && (flp->type != SDLA_S508))) - return -EINVAL; - - if (data.config.clocking & ~(FRAD_CLOCK_INT | SDLA_S508_PORT_RS232)) - return -EINVAL; - - if ((data.config.mtu < 0) || (data.config.mtu > SDLA_MAX_MTU)) - return -EINVAL; - - if ((data.config.T391 < 5) || (data.config.T391 > 30)) - return -EINVAL; - - if ((data.config.T392 < 5) || (data.config.T392 > 30)) - return -EINVAL; - - if ((data.config.N391 < 1) || (data.config.N391 > 255)) - return -EINVAL; - - if ((data.config.N392 < 1) || (data.config.N392 > 10)) - return -EINVAL; - - if ((data.config.N393 < 1) || (data.config.N393 > 10)) - return -EINVAL; - - memcpy(&flp->config, &data.config, sizeof(struct frad_conf)); - flp->config.flags |= SDLA_DIRECT_RECV; - - if (flp->type == SDLA_S508) - flp->config.flags |= SDLA_TX70_RX30; - - if (dev->mtu != flp->config.mtu) - { - /* this is required to change the MTU */ - dev->mtu = flp->config.mtu; - for(i=0;i<CONFIG_DLCI_MAX;i++) - if (flp->master[i]) - flp->master[i]->mtu = flp->config.mtu; - } - - flp->config.mtu += sizeof(struct frhdr); - - /* off to the races! */ - if (!flp->configured) - sdla_start(dev); - - flp->configured = 1; - } - else - { - /* no sense reading if the CPU isn't started */ - if (netif_running(dev)) - { - size = sizeof(data); - if (sdla_cmd(dev, SDLA_READ_DLCI_CONFIGURATION, 0, 0, NULL, 0, &data, &size) != SDLA_RET_OK) - return -EIO; - } - else - if (flp->configured) - memcpy(&data.config, &flp->config, sizeof(struct frad_conf)); - else - memset(&data.config, 0, sizeof(struct frad_conf)); - - memcpy(&flp->config, &data.config, sizeof(struct frad_conf)); - data.config.flags &= FRAD_VALID_FLAGS; - data.config.mtu -= data.config.mtu > sizeof(struct frhdr) ? sizeof(struct frhdr) : data.config.mtu; - return copy_to_user(conf, &data.config, sizeof(struct frad_conf))?-EFAULT:0; - } - - return 0; -} - -static int sdla_xfer(struct net_device *dev, struct sdla_mem __user *info, int read) -{ - struct sdla_mem mem; - char *temp; - - if(copy_from_user(&mem, info, sizeof(mem))) - return -EFAULT; - - if (read) - { - temp = kzalloc(mem.len, GFP_KERNEL); - if (!temp) - return -ENOMEM; - sdla_read(dev, mem.addr, temp, mem.len); - if(copy_to_user(mem.data, temp, mem.len)) - { - kfree(temp); - return -EFAULT; - } - kfree(temp); - } - else - { - temp = memdup_user(mem.data, mem.len); - if (IS_ERR(temp)) - return PTR_ERR(temp); - sdla_write(dev, mem.addr, temp, mem.len); - kfree(temp); - } - return 0; -} - -static int sdla_reconfig(struct net_device *dev) -{ - struct frad_local *flp; - struct conf_data data; - int i, len; - - flp = netdev_priv(dev); - - len = 0; - for(i=0;i<CONFIG_DLCI_MAX;i++) - if (flp->dlci[i]) - data.dlci[len++] = flp->dlci[i]; - len *= 2; - - memcpy(&data, &flp->config, sizeof(struct frad_conf)); - len += sizeof(struct frad_conf); - - sdla_cmd(dev, SDLA_DISABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL); - sdla_cmd(dev, SDLA_SET_DLCI_CONFIGURATION, 0, 0, &data, len, NULL, NULL); - sdla_cmd(dev, SDLA_ENABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL); - - return 0; -} - -static int sdla_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -{ - struct frad_local *flp; - - if(!capable(CAP_NET_ADMIN)) - return -EPERM; - - flp = netdev_priv(dev); - - if (!flp->initialized) - return -EINVAL; - - switch (cmd) - { - case FRAD_GET_CONF: - case FRAD_SET_CONF: - return sdla_config(dev, ifr->ifr_data, cmd == FRAD_GET_CONF); - - case SDLA_IDENTIFY: - ifr->ifr_flags = flp->type; - break; - - case SDLA_CPUSPEED: - return sdla_cpuspeed(dev, ifr); - -/* ========================================================== -NOTE: This is rather a useless action right now, as the - current driver does not support protocols other than - FR. However, Sangoma has modules for a number of - other protocols in the works. -============================================================*/ - case SDLA_PROTOCOL: - if (flp->configured) - return -EALREADY; - - switch (ifr->ifr_flags) - { - case ARPHRD_FRAD: - dev->type = ifr->ifr_flags; - break; - default: - return -ENOPROTOOPT; - } - break; - - case SDLA_CLEARMEM: - sdla_clear(dev); - break; - - case SDLA_WRITEMEM: - case SDLA_READMEM: - if(!capable(CAP_SYS_RAWIO)) - return -EPERM; - return sdla_xfer(dev, ifr->ifr_data, cmd == SDLA_READMEM); - - case SDLA_START: - sdla_start(dev); - break; - - case SDLA_STOP: - sdla_stop(dev); - break; - - default: - return -EOPNOTSUPP; - } - return 0; -} - -static int sdla_change_mtu(struct net_device *dev, int new_mtu) -{ - if (netif_running(dev)) - return -EBUSY; - - /* for now, you can't change the MTU! */ - return -EOPNOTSUPP; -} - -static int sdla_set_config(struct net_device *dev, struct ifmap *map) -{ - struct frad_local *flp; - int i; - char byte; - unsigned base; - int err = -EINVAL; - - flp = netdev_priv(dev); - - if (flp->initialized) - return -EINVAL; - - for(i=0; i < ARRAY_SIZE(valid_port); i++) - if (valid_port[i] == map->base_addr) - break; - - if (i == ARRAY_SIZE(valid_port)) - return -EINVAL; - - if (!request_region(map->base_addr, SDLA_IO_EXTENTS, dev->name)){ - pr_warn("io-port 0x%04lx in use\n", dev->base_addr); - return -EINVAL; - } - base = map->base_addr; - - /* test for card types, S502A, S502E, S507, S508 */ - /* these tests shut down the card completely, so clear the state */ - flp->type = SDLA_UNKNOWN; - flp->state = 0; - - for(i=1;i<SDLA_IO_EXTENTS;i++) - if (inb(base + i) != 0xFF) - break; - - if (i == SDLA_IO_EXTENTS) { - outb(SDLA_HALT, base + SDLA_REG_Z80_CONTROL); - if ((inb(base + SDLA_S502_STS) & 0x0F) == 0x08) { - outb(SDLA_S502E_INTACK, base + SDLA_REG_CONTROL); - if ((inb(base + SDLA_S502_STS) & 0x0F) == 0x0C) { - outb(SDLA_HALT, base + SDLA_REG_CONTROL); - flp->type = SDLA_S502E; - goto got_type; - } - } - } - - for(byte=inb(base),i=0;i<SDLA_IO_EXTENTS;i++) - if (inb(base + i) != byte) - break; - - if (i == SDLA_IO_EXTENTS) { - outb(SDLA_HALT, base + SDLA_REG_CONTROL); - if ((inb(base + SDLA_S502_STS) & 0x7E) == 0x30) { - outb(SDLA_S507_ENABLE, base + SDLA_REG_CONTROL); - if ((inb(base + SDLA_S502_STS) & 0x7E) == 0x32) { - outb(SDLA_HALT, base + SDLA_REG_CONTROL); - flp->type = SDLA_S507; - goto got_type; - } - } - } - - outb(SDLA_HALT, base + SDLA_REG_CONTROL); - if ((inb(base + SDLA_S508_STS) & 0x3F) == 0x00) { - outb(SDLA_S508_INTEN, base + SDLA_REG_CONTROL); - if ((inb(base + SDLA_S508_STS) & 0x3F) == 0x10) { - outb(SDLA_HALT, base + SDLA_REG_CONTROL); - flp->type = SDLA_S508; - goto got_type; - } - } - - outb(SDLA_S502A_HALT, base + SDLA_REG_CONTROL); - if (inb(base + SDLA_S502_STS) == 0x40) { - outb(SDLA_S502A_START, base + SDLA_REG_CONTROL); - if (inb(base + SDLA_S502_STS) == 0x40) { - outb(SDLA_S502A_INTEN, base + SDLA_REG_CONTROL); - if (inb(base + SDLA_S502_STS) == 0x44) { - outb(SDLA_S502A_START, base + SDLA_REG_CONTROL); - flp->type = SDLA_S502A; - goto got_type; - } - } - } - - netdev_notice(dev, "Unknown card type\n"); - err = -ENODEV; - goto fail; - -got_type: - switch(base) { - case 0x270: - case 0x280: - case 0x380: - case 0x390: - if (flp->type != SDLA_S508 && flp->type != SDLA_S507) - goto fail; - } - - switch (map->irq) { - case 2: - if (flp->type != SDLA_S502E) - goto fail; - break; - - case 10: - case 11: - case 12: - case 15: - case 4: - if (flp->type != SDLA_S508 && flp->type != SDLA_S507) - goto fail; - break; - case 3: - case 5: - case 7: - if (flp->type == SDLA_S502A) - goto fail; - break; - - default: - goto fail; - } - - err = -EAGAIN; - if (request_irq(dev->irq, sdla_isr, 0, dev->name, dev)) - goto fail; - - if (flp->type == SDLA_S507) { - switch(dev->irq) { - case 3: - flp->state = SDLA_S507_IRQ3; - break; - case 4: - flp->state = SDLA_S507_IRQ4; - break; - case 5: - flp->state = SDLA_S507_IRQ5; - break; - case 7: - flp->state = SDLA_S507_IRQ7; - break; - case 10: - flp->state = SDLA_S507_IRQ10; - break; - case 11: - flp->state = SDLA_S507_IRQ11; - break; - case 12: - flp->state = SDLA_S507_IRQ12; - break; - case 15: - flp->state = SDLA_S507_IRQ15; - break; - } - } - - for(i=0; i < ARRAY_SIZE(valid_mem); i++) - if (valid_mem[i] == map->mem_start) - break; - - err = -EINVAL; - if (i == ARRAY_SIZE(valid_mem)) - goto fail2; - - if (flp->type == SDLA_S502A && (map->mem_start & 0xF000) >> 12 == 0x0E) - goto fail2; - - if (flp->type != SDLA_S507 && map->mem_start >> 16 == 0x0B) - goto fail2; - - if (flp->type == SDLA_S507 && map->mem_start >> 16 == 0x0D) - goto fail2; - - byte = flp->type != SDLA_S508 ? SDLA_8K_WINDOW : 0; - byte |= (map->mem_start & 0xF000) >> (12 + (flp->type == SDLA_S508 ? 1 : 0)); - switch(flp->type) { - case SDLA_S502A: - case SDLA_S502E: - switch (map->mem_start >> 16) { - case 0x0A: - byte |= SDLA_S502_SEG_A; - break; - case 0x0C: - byte |= SDLA_S502_SEG_C; - break; - case 0x0D: - byte |= SDLA_S502_SEG_D; - break; - case 0x0E: - byte |= SDLA_S502_SEG_E; - break; - } - break; - case SDLA_S507: - switch (map->mem_start >> 16) { - case 0x0A: - byte |= SDLA_S507_SEG_A; - break; - case 0x0B: - byte |= SDLA_S507_SEG_B; - break; - case 0x0C: - byte |= SDLA_S507_SEG_C; - break; - case 0x0E: - byte |= SDLA_S507_SEG_E; - break; - } - break; - case SDLA_S508: - switch (map->mem_start >> 16) { - case 0x0A: - byte |= SDLA_S508_SEG_A; - break; - case 0x0C: - byte |= SDLA_S508_SEG_C; - break; - case 0x0D: - byte |= SDLA_S508_SEG_D; - break; - case 0x0E: - byte |= SDLA_S508_SEG_E; - break; - } - break; - } - - /* set the memory bits, and enable access */ - outb(byte, base + SDLA_REG_PC_WINDOW); - - switch(flp->type) - { - case SDLA_S502E: - flp->state = SDLA_S502E_ENABLE; - break; - case SDLA_S507: - flp->state |= SDLA_MEMEN; - break; - case SDLA_S508: - flp->state = SDLA_MEMEN; - break; - } - outb(flp->state, base + SDLA_REG_CONTROL); - - dev->irq = map->irq; - dev->base_addr = base; - dev->mem_start = map->mem_start; - dev->mem_end = dev->mem_start + 0x2000; - flp->initialized = 1; - return 0; - -fail2: - free_irq(map->irq, dev); -fail: - release_region(base, SDLA_IO_EXTENTS); - return err; -} - -static const struct net_device_ops sdla_netdev_ops = { - .ndo_open = sdla_open, - .ndo_stop = sdla_close, - .ndo_do_ioctl = sdla_ioctl, - .ndo_set_config = sdla_set_config, - .ndo_start_xmit = sdla_transmit, - .ndo_change_mtu = sdla_change_mtu, -}; - -static void setup_sdla(struct net_device *dev) -{ - struct frad_local *flp = netdev_priv(dev); - - netdev_boot_setup_check(dev); - - dev->netdev_ops = &sdla_netdev_ops; - dev->flags = 0; - dev->type = 0xFFFF; - dev->hard_header_len = 0; - dev->addr_len = 0; - dev->mtu = SDLA_MAX_MTU; - - flp->activate = sdla_activate; - flp->deactivate = sdla_deactivate; - flp->assoc = sdla_assoc; - flp->deassoc = sdla_deassoc; - flp->dlci_conf = sdla_dlci_conf; - flp->dev = dev; - - timer_setup(&flp->timer, sdla_poll, 0); - flp->timer.expires = 1; -} - -static struct net_device *sdla; - -static int __init init_sdla(void) -{ - int err; - - printk("%s.\n", version); - - sdla = alloc_netdev(sizeof(struct frad_local), "sdla0", - NET_NAME_UNKNOWN, setup_sdla); - if (!sdla) - return -ENOMEM; - - err = register_netdev(sdla); - if (err) - free_netdev(sdla); - - return err; -} - -static void __exit exit_sdla(void) -{ - struct frad_local *flp = netdev_priv(sdla); - - unregister_netdev(sdla); - if (flp->initialized) { - free_irq(sdla->irq, sdla); - release_region(sdla->base_addr, SDLA_IO_EXTENTS); - } - del_timer_sync(&flp->timer); - free_netdev(sdla); -} - -MODULE_LICENSE("GPL"); - -module_init(init_sdla); -module_exit(exit_sdla); diff --git a/include/linux/if_frad.h b/include/linux/if_frad.h deleted file mode 100644 index 52224de798aa..000000000000 --- a/include/linux/if_frad.h +++ /dev/null @@ -1,92 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * DLCI/FRAD Definitions for Frame Relay Access Devices. DLCI devices are - * created for each DLCI associated with a FRAD. The FRAD driver - * is not truly a network device, but the lower level device - * handler. This allows other FRAD manufacturers to use the DLCI - * code, including its RFC1490 encapsulation alongside the current - * implementation for the Sangoma cards. - * - * Version: @(#)if_ifrad.h 0.15 31 Mar 96 - * - * Author: Mike McLagan <mike.mclagan@linux.org> - * - * Changes: - * 0.15 Mike McLagan changed structure defs (packed) - * re-arranged flags - * added DLCI_RET vars - */ -#ifndef _FRAD_H_ -#define _FRAD_H_ - -#include <uapi/linux/if_frad.h> - - -#if defined(CONFIG_DLCI) || defined(CONFIG_DLCI_MODULE) - -/* these are the fields of an RFC 1490 header */ -struct frhdr -{ - unsigned char control; - - /* for IP packets, this can be the NLPID */ - unsigned char pad; - - unsigned char NLPID; - unsigned char OUI[3]; - __be16 PID; - -#define IP_NLPID pad -} __packed; - -/* see RFC 1490 for the definition of the following */ -#define FRAD_I_UI 0x03 - -#define FRAD_P_PADDING 0x00 -#define FRAD_P_Q933 0x08 -#define FRAD_P_SNAP 0x80 -#define FRAD_P_CLNP 0x81 -#define FRAD_P_IP 0xCC - -struct dlci_local -{ - struct net_device *master; - struct net_device *slave; - struct dlci_conf config; - int configured; - struct list_head list; - - /* callback function */ - void (*receive)(struct sk_buff *skb, struct net_device *); -}; - -struct frad_local -{ - /* devices which this FRAD is slaved to */ - struct net_device *master[CONFIG_DLCI_MAX]; - short dlci[CONFIG_DLCI_MAX]; - - struct frad_conf config; - int configured; /* has this device been configured */ - int initialized; /* mem_start, port, irq set ? */ - - /* callback functions */ - int (*activate)(struct net_device *, struct net_device *); - int (*deactivate)(struct net_device *, struct net_device *); - int (*assoc)(struct net_device *, struct net_device *); - int (*deassoc)(struct net_device *, struct net_device *); - int (*dlci_conf)(struct net_device *, struct net_device *, int get); - - /* fields that are used by the Sangoma SDLA cards */ - struct timer_list timer; - struct net_device *dev; - int type; /* adapter type */ - int state; /* state of the S502/8 control latch */ - int buffer; /* current buffer for S508 firmware */ -}; - -#endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */ - -extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *)); - -#endif diff --git a/include/linux/sdla.h b/include/linux/sdla.h deleted file mode 100644 index 00e8b3b614f0..000000000000 --- a/include/linux/sdla.h +++ /dev/null @@ -1,240 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * INET An implementation of the TCP/IP protocol suite for the LINUX - * operating system. INET is implemented using the BSD Socket - * interface as the means of communication with the user level. - * - * Global definitions for the Frame relay interface. - * - * Version: @(#)if_ifrad.h 0.20 13 Apr 96 - * - * Author: Mike McLagan <mike.mclagan@linux.org> - * - * Changes: - * 0.15 Mike McLagan Structure packing - * - * 0.20 Mike McLagan New flags for S508 buffer handling - */ -#ifndef SDLA_H -#define SDLA_H - -#include <uapi/linux/sdla.h> - - -/* important Z80 window addresses */ -#define SDLA_CONTROL_WND 0xE000 - -#define SDLA_502_CMD_BUF 0xEF60 -#define SDLA_502_RCV_BUF 0xA900 -#define SDLA_502_TXN_AVAIL 0xFFF1 -#define SDLA_502_RCV_AVAIL 0xFFF2 -#define SDLA_502_EVENT_FLAGS 0xFFF3 -#define SDLA_502_MDM_STATUS 0xFFF4 -#define SDLA_502_IRQ_INTERFACE 0xFFFD -#define SDLA_502_IRQ_PERMISSION 0xFFFE -#define SDLA_502_DATA_OFS 0x0010 - -#define SDLA_508_CMD_BUF 0xE000 -#define SDLA_508_TXBUF_INFO 0xF100 -#define SDLA_508_RXBUF_INFO 0xF120 -#define SDLA_508_EVENT_FLAGS 0xF003 -#define SDLA_508_MDM_STATUS 0xF004 -#define SDLA_508_IRQ_INTERFACE 0xF010 -#define SDLA_508_IRQ_PERMISSION 0xF011 -#define SDLA_508_TSE_OFFSET 0xF012 - -/* Event flags */ -#define SDLA_EVENT_STATUS 0x01 -#define SDLA_EVENT_DLCI_STATUS 0x02 -#define SDLA_EVENT_BAD_DLCI 0x04 -#define SDLA_EVENT_LINK_DOWN 0x40 - -/* IRQ Trigger flags */ -#define SDLA_INTR_RX 0x01 -#define SDLA_INTR_TX 0x02 -#define SDLA_INTR_MODEM 0x04 -#define SDLA_INTR_COMPLETE 0x08 -#define SDLA_INTR_STATUS 0x10 -#define SDLA_INTR_TIMER 0x20 - -/* DLCI status bits */ -#define SDLA_DLCI_DELETED 0x01 -#define SDLA_DLCI_ACTIVE 0x02 -#define SDLA_DLCI_WAITING 0x04 -#define SDLA_DLCI_NEW 0x08 -#define SDLA_DLCI_INCLUDED 0x40 - -/* valid command codes */ -#define SDLA_INFORMATION_WRITE 0x01 -#define SDLA_INFORMATION_READ 0x02 -#define SDLA_ISSUE_IN_CHANNEL_SIGNAL 0x03 -#define SDLA_SET_DLCI_CONFIGURATION 0x10 -#define SDLA_READ_DLCI_CONFIGURATION 0x11 -#define SDLA_DISABLE_COMMUNICATIONS 0x12 -#define SDLA_ENABLE_COMMUNICATIONS 0x13 -#define SDLA_READ_DLC_STATUS 0x14 -#define SDLA_READ_DLC_STATISTICS 0x15 -#define SDLA_FLUSH_DLC_STATISTICS 0x16 -#define SDLA_LIST_ACTIVE_DLCI 0x17 -#define SDLA_FLUSH_INFORMATION_BUFFERS 0x18 -#define SDLA_ADD_DLCI 0x20 -#define SDLA_DELETE_DLCI 0x21 -#define SDLA_ACTIVATE_DLCI 0x22 -#define SDLA_DEACTIVATE_DLCI 0x23 -#define SDLA_READ_MODEM_STATUS 0x30 -#define SDLA_SET_MODEM_STATUS 0x31 -#define SDLA_READ_COMMS_ERR_STATS 0x32 -#define SDLA_FLUSH_COMMS_ERR_STATS 0x33 -#define SDLA_READ_CODE_VERSION 0x40 -#define SDLA_SET_IRQ_TRIGGER 0x50 -#define SDLA_GET_IRQ_TRIGGER 0x51 - -/* In channel signal types */ -#define SDLA_ICS_LINK_VERIFY 0x02 -#define SDLA_ICS_STATUS_ENQ 0x03 - -/* modem status flags */ -#define SDLA_MODEM_DTR_HIGH 0x01 -#define SDLA_MODEM_RTS_HIGH 0x02 -#define SDLA_MODEM_DCD_HIGH 0x08 -#define SDLA_MODEM_CTS_HIGH 0x20 - -/* used for RET_MODEM interpretation */ -#define SDLA_MODEM_DCD_LOW 0x01 -#define SDLA_MODEM_CTS_LOW 0x02 - -/* return codes */ -#define SDLA_RET_OK 0x00 -#define SDLA_RET_COMMUNICATIONS 0x01 -#define SDLA_RET_CHANNEL_INACTIVE 0x02 -#define SDLA_RET_DLCI_INACTIVE 0x03 -#define SDLA_RET_DLCI_CONFIG 0x04 -#define SDLA_RET_BUF_TOO_BIG 0x05 -#define SDLA_RET_NO_DATA 0x05 -#define SDLA_RET_BUF_OVERSIZE 0x06 -#define SDLA_RET_CIR_OVERFLOW 0x07 -#define SDLA_RET_NO_BUFS 0x08 -#define SDLA_RET_TIMEOUT 0x0A -#define SDLA_RET_MODEM 0x10 -#define SDLA_RET_CHANNEL_OFF 0x11 -#define SDLA_RET_CHANNEL_ON 0x12 -#define SDLA_RET_DLCI_STATUS 0x13 -#define SDLA_RET_DLCI_UNKNOWN 0x14 -#define SDLA_RET_COMMAND_INVALID 0x1F - -/* Configuration flags */ -#define SDLA_DIRECT_RECV 0x0080 -#define SDLA_TX_NO_EXCEPT 0x0020 -#define SDLA_NO_ICF_MSGS 0x1000 -#define SDLA_TX50_RX50 0x0000 -#define SDLA_TX70_RX30 0x2000 -#define SDLA_TX30_RX70 0x4000 - -/* IRQ selection flags */ -#define SDLA_IRQ_RECEIVE 0x01 -#define SDLA_IRQ_TRANSMIT 0x02 -#define SDLA_IRQ_MODEM_STAT 0x04 -#define SDLA_IRQ_COMMAND 0x08 -#define SDLA_IRQ_CHANNEL 0x10 -#define SDLA_IRQ_TIMER 0x20 - -/* definitions for PC memory mapping */ -#define SDLA_8K_WINDOW 0x01 -#define SDLA_S502_SEG_A 0x10 -#define SDLA_S502_SEG_C 0x20 -#define SDLA_S502_SEG_D 0x00 -#define SDLA_S502_SEG_E 0x30 -#define SDLA_S507_SEG_A 0x00 -#define SDLA_S507_SEG_B 0x40 -#define SDLA_S507_SEG_C 0x80 -#define SDLA_S507_SEG_E 0xC0 -#define SDLA_S508_SEG_A 0x00 -#define SDLA_S508_SEG_C 0x10 -#define SDLA_S508_SEG_D 0x08 -#define SDLA_S508_SEG_E 0x18 - -/* SDLA adapter port constants */ -#define SDLA_IO_EXTENTS 0x04 - -#define SDLA_REG_CONTROL 0x00 -#define SDLA_REG_PC_WINDOW 0x01 /* offset for PC window select latch */ -#define SDLA_REG_Z80_WINDOW 0x02 /* offset for Z80 window select latch */ -#define SDLA_REG_Z80_CONTROL 0x03 /* offset for Z80 control latch */ - -#define SDLA_S502_STS 0x00 /* status reg for 502, 502E, 507 */ -#define SDLA_S508_GNRL 0x00 /* general purp. reg for 508 */ -#define SDLA_S508_STS 0x01 /* status reg for 508 */ -#define SDLA_S508_IDR 0x02 /* ID reg for 508 */ - -/* control register flags */ -#define SDLA_S502A_START 0x00 /* start the CPU */ -#define SDLA_S502A_INTREQ 0x02 -#define SDLA_S502A_INTEN 0x04 -#define SDLA_S502A_HALT 0x08 /* halt the CPU */ -#define SDLA_S502A_NMI 0x10 /* issue an NMI to the CPU */ - -#define SDLA_S502E_CPUEN 0x01 -#define SDLA_S502E_ENABLE 0x02 -#define SDLA_S502E_INTACK 0x04 - -#define SDLA_S507_ENABLE 0x01 -#define SDLA_S507_IRQ3 0x00 -#define SDLA_S507_IRQ4 0x20 -#define SDLA_S507_IRQ5 0x40 -#define SDLA_S507_IRQ7 0x60 -#define SDLA_S507_IRQ10 0x80 -#define SDLA_S507_IRQ11 0xA0 -#define SDLA_S507_IRQ12 0xC0 -#define SDLA_S507_IRQ15 0xE0 - -#define SDLA_HALT 0x00 -#define SDLA_CPUEN 0x02 -#define SDLA_MEMEN 0x04 -#define SDLA_S507_EPROMWR 0x08 -#define SDLA_S507_EPROMCLK 0x10 -#define SDLA_S508_INTRQ 0x08 -#define SDLA_S508_INTEN 0x10 - -struct sdla_cmd { - char opp_flag; - char cmd; - short length; - char retval; - short dlci; - char flags; - short rxlost_int; - long rxlost_app; - char reserve[2]; - char data[SDLA_MAX_DATA]; /* transfer data buffer */ -} __attribute__((packed)); - -struct intr_info { - char flags; - short txlen; - char irq; - char flags2; - short timeout; -} __attribute__((packed)); - -/* found in the 508's control window at RXBUF_INFO */ -struct buf_info { - unsigned short rse_num; - unsigned long rse_base; - unsigned long rse_next; - unsigned long buf_base; - unsigned short reserved; - unsigned long buf_top; -} __attribute__((packed)); - -/* structure pointed to by rse_base in RXBUF_INFO struct */ -struct buf_entry { - char opp_flag; - short length; - short dlci; - char flags; - short timestamp; - short reserved[2]; - long buf_addr; -} __attribute__((packed)); - -#endif diff --git a/include/uapi/linux/if_frad.h b/include/uapi/linux/if_frad.h deleted file mode 100644 index 3c6ee85f6262..000000000000 --- a/include/uapi/linux/if_frad.h +++ /dev/null @@ -1,123 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ -/* - * DLCI/FRAD Definitions for Frame Relay Access Devices. DLCI devices are - * created for each DLCI associated with a FRAD. The FRAD driver - * is not truly a network device, but the lower level device - * handler. This allows other FRAD manufacturers to use the DLCI - * code, including its RFC1490 encapsulation alongside the current - * implementation for the Sangoma cards. - * - * Version: @(#)if_ifrad.h 0.15 31 Mar 96 - * - * Author: Mike McLagan <mike.mclagan@linux.org> - * - * Changes: - * 0.15 Mike McLagan changed structure defs (packed) - * re-arranged flags - * added DLCI_RET vars - * - * 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. - */ - -#ifndef _UAPI_FRAD_H_ -#define _UAPI_FRAD_H_ - -#include <linux/if.h> - -/* Structures and constants associated with the DLCI device driver */ - -struct dlci_add -{ - char devname[IFNAMSIZ]; - short dlci; -}; - -#define DLCI_GET_CONF (SIOCDEVPRIVATE + 2) -#define DLCI_SET_CONF (SIOCDEVPRIVATE + 3) - -/* - * These are related to the Sangoma SDLA and should remain in order. - * Code within the SDLA module is based on the specifics of this - * structure. Change at your own peril. - */ -struct dlci_conf { - short flags; - short CIR_fwd; - short Bc_fwd; - short Be_fwd; - short CIR_bwd; - short Bc_bwd; - short Be_bwd; - -/* these are part of the status read */ - short Tc_fwd; - short Tc_bwd; - short Tf_max; - short Tb_max; - -/* add any new fields here above is a mirror of sdla_dlci_conf */ -}; - -#define DLCI_GET_SLAVE (SIOCDEVPRIVATE + 4) - -/* configuration flags for DLCI */ -#define DLCI_IGNORE_CIR_OUT 0x0001 -#define DLCI_ACCOUNT_CIR_IN 0x0002 -#define DLCI_BUFFER_IF 0x0008 - -#define DLCI_VALID_FLAGS 0x000B - -/* defines for the actual Frame Relay hardware */ -#define FRAD_GET_CONF (SIOCDEVPRIVATE) -#define FRAD_SET_CONF (SIOCDEVPRIVATE + 1) - -#define FRAD_LAST_IOCTL FRAD_SET_CONF - -/* - * Based on the setup for the Sangoma SDLA. If changes are - * necessary to this structure, a routine will need to be - * added to that module to copy fields. - */ -struct frad_conf -{ - short station; - short flags; - short kbaud; - short clocking; - short mtu; - short T391; - short T392; - short N391; - short N392; - short N393; - short CIR_fwd; - short Bc_fwd; - short Be_fwd; - short CIR_bwd; - short Bc_bwd; - short Be_bwd; - -/* Add new fields here, above is a mirror of the sdla_conf */ - -}; - -#define FRAD_STATION_CPE 0x0000 -#define FRAD_STATION_NODE 0x0001 - -#define FRAD_TX_IGNORE_CIR 0x0001 -#define FRAD_RX_ACCOUNT_CIR 0x0002 -#define FRAD_DROP_ABORTED 0x0004 -#define FRAD_BUFFERIF 0x0008 -#define FRAD_STATS 0x0010 -#define FRAD_MCI 0x0100 -#define FRAD_AUTODLCI 0x8000 -#define FRAD_VALID_FLAGS 0x811F - -#define FRAD_CLOCK_INT 0x0001 -#define FRAD_CLOCK_EXT 0x0000 - - -#endif /* _UAPI_FRAD_H_ */ diff --git a/include/uapi/linux/sdla.h b/include/uapi/linux/sdla.h deleted file mode 100644 index 1e3735be6511..000000000000 --- a/include/uapi/linux/sdla.h +++ /dev/null @@ -1,117 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ -/* - * INET An implementation of the TCP/IP protocol suite for the LINUX - * operating system. INET is implemented using the BSD Socket - * interface as the means of communication with the user level. - * - * Global definitions for the Frame relay interface. - * - * Version: @(#)if_ifrad.h 0.20 13 Apr 96 - * - * Author: Mike McLagan <mike.mclagan@linux.org> - * - * Changes: - * 0.15 Mike McLagan Structure packing - * - * 0.20 Mike McLagan New flags for S508 buffer handling - * - * 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. - */ - -#ifndef _UAPISDLA_H -#define _UAPISDLA_H - -/* adapter type */ -#define SDLA_TYPES -#define SDLA_S502A 5020 -#define SDLA_S502E 5021 -#define SDLA_S503 5030 -#define SDLA_S507 5070 -#define SDLA_S508 5080 -#define SDLA_S509 5090 -#define SDLA_UNKNOWN -1 - -/* port selection flags for the S508 */ -#define SDLA_S508_PORT_V35 0x00 -#define SDLA_S508_PORT_RS232 0x02 - -/* Z80 CPU speeds */ -#define SDLA_CPU_3M 0x00 -#define SDLA_CPU_5M 0x01 -#define SDLA_CPU_7M 0x02 -#define SDLA_CPU_8M 0x03 -#define SDLA_CPU_10M 0x04 -#define SDLA_CPU_16M 0x05 -#define SDLA_CPU_12M 0x06 - -/* some private IOCTLs */ -#define SDLA_IDENTIFY (FRAD_LAST_IOCTL + 1) -#define SDLA_CPUSPEED (FRAD_LAST_IOCTL + 2) -#define SDLA_PROTOCOL (FRAD_LAST_IOCTL + 3) - -#define SDLA_CLEARMEM (FRAD_LAST_IOCTL + 4) -#define SDLA_WRITEMEM (FRAD_LAST_IOCTL + 5) -#define SDLA_READMEM (FRAD_LAST_IOCTL + 6) - -struct sdla_mem { - int addr; - int len; - void __user *data; -}; - -#define SDLA_START (FRAD_LAST_IOCTL + 7) -#define SDLA_STOP (FRAD_LAST_IOCTL + 8) - -/* some offsets in the Z80's memory space */ -#define SDLA_NMIADDR 0x0000 -#define SDLA_CONF_ADDR 0x0010 -#define SDLA_S502A_NMIADDR 0x0066 -#define SDLA_CODE_BASEADDR 0x0100 -#define SDLA_WINDOW_SIZE 0x2000 -#define SDLA_ADDR_MASK 0x1FFF - -/* largest handleable block of data */ -#define SDLA_MAX_DATA 4080 -#define SDLA_MAX_MTU 4072 /* MAX_DATA - sizeof(fradhdr) */ -#define SDLA_MAX_DLCI 24 - -/* this should be the same as frad_conf */ -struct sdla_conf { - short station; - short config; - short kbaud; - short clocking; - short max_frm; - short T391; - short T392; - short N391; - short N392; - short N393; - short CIR_fwd; - short Bc_fwd; - short Be_fwd; - short CIR_bwd; - short Bc_bwd; - short Be_bwd; -}; - -/* this should be the same as dlci_conf */ -struct sdla_dlci_conf { - short config; - short CIR_fwd; - short Bc_fwd; - short Be_fwd; - short CIR_bwd; - short Bc_bwd; - short Be_bwd; - short Tc_fwd; - short Tc_bwd; - short Tf_max; - short Tb_max; -}; - - -#endif /* _UAPISDLA_H */ diff --git a/net/socket.c b/net/socket.c index 6e6cccc2104f..152b1dcf93c6 100644 --- a/net/socket.c +++ b/net/socket.c @@ -64,7 +64,6 @@ #include <linux/seq_file.h> #include <linux/mutex.h> #include <linux/if_bridge.h> -#include <linux/if_frad.h> #include <linux/if_vlan.h> #include <linux/ptp_classify.h> #include <linux/init.h> @@ -1027,17 +1026,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *)) } EXPORT_SYMBOL(vlan_ioctl_set); -static DEFINE_MUTEX(dlci_ioctl_mutex); -static int (*dlci_ioctl_hook) (unsigned int, void __user *); - -void dlci_ioctl_set(int (*hook) (unsigned int, void __user *)) -{ - mutex_lock(&dlci_ioctl_mutex); - dlci_ioctl_hook = hook; - mutex_unlock(&dlci_ioctl_mutex); -} -EXPORT_SYMBOL(dlci_ioctl_set); - static long sock_do_ioctl(struct net *net, struct socket *sock, unsigned int cmd, unsigned long arg) { @@ -1156,17 +1144,6 @@ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg) err = vlan_ioctl_hook(net, argp); mutex_unlock(&vlan_ioctl_mutex); break; - case SIOCADDDLCI: - case SIOCDELDLCI: - err = -ENOPKG; - if (!dlci_ioctl_hook) - request_module("dlci"); - - mutex_lock(&dlci_ioctl_mutex); - if (dlci_ioctl_hook) - err = dlci_ioctl_hook(cmd, argp); - mutex_unlock(&dlci_ioctl_mutex); - break; case SIOCGSKNS: err = -EPERM; if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) @@ -3427,8 +3404,6 @@ static int compat_sock_ioctl_trans(struct file *file, struct socket *sock, case SIOCBRDELBR: case SIOCGIFVLAN: case SIOCSIFVLAN: - case SIOCADDDLCI: - case SIOCDELDLCI: case SIOCGSKNS: case SIOCGSTAMP_NEW: case SIOCGSTAMPNS_NEW: |