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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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01f4685797
Looks like all the changes to this driver had been tree-wide refactoring since git era begun. The driver is using virt_to_bus() we should make it use more modern DMA APIs but since it's unlikely to be getting any use these days delete it instead. We can always revert to bring it back. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
259 lines
6.2 KiB
C
259 lines
6.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* INET An implementation of the TCP/IP protocol suite for the LINUX
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* operating system. INET is implemented using the BSD Socket
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* interface as the means of communication with the user level.
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*
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* Holds initial configuration information for devices.
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*
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* Version: @(#)Space.c 1.0.7 08/12/93
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*
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* Authors: Ross Biro
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* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
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* Donald J. Becker, <becker@scyld.com>
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*
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* Changelog:
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* Stephen Hemminger (09/2003)
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* - get rid of pre-linked dev list, dynamic device allocation
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* Paul Gortmaker (03/2002)
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* - struct init cleanup, enable multiple ISA autoprobes.
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* Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 09/1999
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* - fix sbni: s/device/net_device/
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* Paul Gortmaker (06/98):
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* - sort probes in a sane way, make sure all (safe) probes
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* get run once & failed autoprobes don't autoprobe again.
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*/
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/netlink.h>
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#include <net/Space.h>
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/*
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* This structure holds boot-time configured netdevice settings. They
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* are then used in the device probing.
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*/
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struct netdev_boot_setup {
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char name[IFNAMSIZ];
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struct ifmap map;
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};
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#define NETDEV_BOOT_SETUP_MAX 8
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/******************************************************************************
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*
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* Device Boot-time Settings Routines
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*
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******************************************************************************/
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/* Boot time configuration table */
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static struct netdev_boot_setup dev_boot_setup[NETDEV_BOOT_SETUP_MAX];
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/**
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* netdev_boot_setup_add - add new setup entry
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* @name: name of the device
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* @map: configured settings for the device
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*
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* Adds new setup entry to the dev_boot_setup list. The function
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* returns 0 on error and 1 on success. This is a generic routine to
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* all netdevices.
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*/
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static int netdev_boot_setup_add(char *name, struct ifmap *map)
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{
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struct netdev_boot_setup *s;
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int i;
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s = dev_boot_setup;
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for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
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if (s[i].name[0] == '\0' || s[i].name[0] == ' ') {
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memset(s[i].name, 0, sizeof(s[i].name));
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strlcpy(s[i].name, name, IFNAMSIZ);
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memcpy(&s[i].map, map, sizeof(s[i].map));
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break;
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}
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}
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return i >= NETDEV_BOOT_SETUP_MAX ? 0 : 1;
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}
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/**
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* netdev_boot_setup_check - check boot time settings
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* @dev: the netdevice
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*
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* Check boot time settings for the device.
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* The found settings are set for the device to be used
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* later in the device probing.
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* Returns 0 if no settings found, 1 if they are.
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*/
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int netdev_boot_setup_check(struct net_device *dev)
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{
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struct netdev_boot_setup *s = dev_boot_setup;
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int i;
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for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
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if (s[i].name[0] != '\0' && s[i].name[0] != ' ' &&
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!strcmp(dev->name, s[i].name)) {
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dev->irq = s[i].map.irq;
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dev->base_addr = s[i].map.base_addr;
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dev->mem_start = s[i].map.mem_start;
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dev->mem_end = s[i].map.mem_end;
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return 1;
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}
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}
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return 0;
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}
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EXPORT_SYMBOL(netdev_boot_setup_check);
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/**
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* netdev_boot_base - get address from boot time settings
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* @prefix: prefix for network device
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* @unit: id for network device
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*
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* Check boot time settings for the base address of device.
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* The found settings are set for the device to be used
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* later in the device probing.
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* Returns 0 if no settings found.
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*/
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static unsigned long netdev_boot_base(const char *prefix, int unit)
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{
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const struct netdev_boot_setup *s = dev_boot_setup;
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char name[IFNAMSIZ];
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int i;
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sprintf(name, "%s%d", prefix, unit);
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/*
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* If device already registered then return base of 1
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* to indicate not to probe for this interface
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*/
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if (__dev_get_by_name(&init_net, name))
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return 1;
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for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++)
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if (!strcmp(name, s[i].name))
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return s[i].map.base_addr;
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return 0;
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}
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/*
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* Saves at boot time configured settings for any netdevice.
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*/
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static int __init netdev_boot_setup(char *str)
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{
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int ints[5];
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struct ifmap map;
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str = get_options(str, ARRAY_SIZE(ints), ints);
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if (!str || !*str)
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return 0;
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/* Save settings */
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memset(&map, 0, sizeof(map));
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if (ints[0] > 0)
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map.irq = ints[1];
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if (ints[0] > 1)
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map.base_addr = ints[2];
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if (ints[0] > 2)
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map.mem_start = ints[3];
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if (ints[0] > 3)
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map.mem_end = ints[4];
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/* Add new entry to the list */
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return netdev_boot_setup_add(str, &map);
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}
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__setup("netdev=", netdev_boot_setup);
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static int __init ether_boot_setup(char *str)
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{
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return netdev_boot_setup(str);
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}
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__setup("ether=", ether_boot_setup);
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/* A unified ethernet device probe. This is the easiest way to have every
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* ethernet adaptor have the name "eth[0123...]".
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*/
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struct devprobe2 {
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struct net_device *(*probe)(int unit);
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int status; /* non-zero if autoprobe has failed */
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};
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static int __init probe_list2(int unit, struct devprobe2 *p, int autoprobe)
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{
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struct net_device *dev;
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for (; p->probe; p++) {
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if (autoprobe && p->status)
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continue;
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dev = p->probe(unit);
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if (!IS_ERR(dev))
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return 0;
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if (autoprobe)
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p->status = PTR_ERR(dev);
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}
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return -ENODEV;
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}
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/* ISA probes that touch addresses < 0x400 (including those that also
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* look for EISA/PCI cards in addition to ISA cards).
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*/
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static struct devprobe2 isa_probes[] __initdata = {
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#ifdef CONFIG_3C515
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{tc515_probe, 0},
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#endif
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#ifdef CONFIG_ULTRA
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{ultra_probe, 0},
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#endif
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#ifdef CONFIG_WD80x3
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{wd_probe, 0},
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#endif
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#if defined(CONFIG_NE2000) /* ISA (use ne2k-pci for PCI cards) */
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{ne_probe, 0},
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#endif
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#ifdef CONFIG_LANCE /* ISA/VLB (use pcnet32 for PCI cards) */
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{lance_probe, 0},
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#endif
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#ifdef CONFIG_SMC9194
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{smc_init, 0},
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#endif
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#ifdef CONFIG_CS89x0_ISA
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{cs89x0_probe, 0},
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#endif
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{NULL, 0},
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};
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/* Unified ethernet device probe, segmented per architecture and
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* per bus interface. This drives the legacy devices only for now.
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*/
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static void __init ethif_probe2(int unit)
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{
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unsigned long base_addr = netdev_boot_base("eth", unit);
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if (base_addr == 1)
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return;
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probe_list2(unit, isa_probes, base_addr == 0);
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}
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/* Statically configured drivers -- order matters here. */
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static int __init net_olddevs_init(void)
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{
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int num;
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for (num = 0; num < 8; ++num)
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ethif_probe2(num);
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#ifdef CONFIG_COPS
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cops_probe(0);
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cops_probe(1);
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cops_probe(2);
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#endif
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return 0;
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}
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device_initcall(net_olddevs_init);
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