diff options
Diffstat (limited to 'drivers/net/Space.c')
| -rw-r--r-- | drivers/net/Space.c | 246 |
1 files changed, 152 insertions, 94 deletions
diff --git a/drivers/net/Space.c b/drivers/net/Space.c index 3a8c7532ee0d..c01e2c2f7d6c 100644 --- a/drivers/net/Space.c +++ b/drivers/net/Space.c @@ -1,3 +1,4 @@ +// 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 @@ -21,49 +22,158 @@ * Paul Gortmaker (06/98): * - sort probes in a sane way, make sure all (safe) probes * get run once & failed autoprobes don't autoprobe again. - * - * 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. */ #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/errno.h> #include <linux/init.h> #include <linux/netlink.h> +#include <net/Space.h> + +/* + * This structure holds boot-time configured netdevice settings. They + * are then used in the device probing. + */ +struct netdev_boot_setup { + char name[IFNAMSIZ]; + struct ifmap map; +}; +#define NETDEV_BOOT_SETUP_MAX 8 + + +/****************************************************************************** + * + * Device Boot-time Settings Routines + * + ******************************************************************************/ + +/* Boot time configuration table */ +static struct netdev_boot_setup dev_boot_setup[NETDEV_BOOT_SETUP_MAX]; + +/** + * netdev_boot_setup_add - add new setup entry + * @name: name of the device + * @map: configured settings for the device + * + * Adds new setup entry to the dev_boot_setup list. The function + * returns 0 on error and 1 on success. This is a generic routine to + * all netdevices. + */ +static int netdev_boot_setup_add(char *name, struct ifmap *map) +{ + struct netdev_boot_setup *s; + int i; + + s = dev_boot_setup; + for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) { + if (s[i].name[0] == '\0' || s[i].name[0] == ' ') { + strscpy_pad(s[i].name, name); + memcpy(&s[i].map, map, sizeof(s[i].map)); + break; + } + } + + return i >= NETDEV_BOOT_SETUP_MAX ? 0 : 1; +} + +/** + * netdev_boot_setup_check - check boot time settings + * @dev: the netdevice + * + * Check boot time settings for the device. + * The found settings are set for the device to be used + * later in the device probing. + * Returns 0 if no settings found, 1 if they are. + */ +int netdev_boot_setup_check(struct net_device *dev) +{ + struct netdev_boot_setup *s = dev_boot_setup; + int i; + + for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) { + if (s[i].name[0] != '\0' && s[i].name[0] != ' ' && + !strcmp(dev->name, s[i].name)) { + dev->irq = s[i].map.irq; + dev->base_addr = s[i].map.base_addr; + dev->mem_start = s[i].map.mem_start; + dev->mem_end = s[i].map.mem_end; + return 1; + } + } + return 0; +} +EXPORT_SYMBOL(netdev_boot_setup_check); + +/** + * netdev_boot_base - get address from boot time settings + * @prefix: prefix for network device + * @unit: id for network device + * + * Check boot time settings for the base address of device. + * The found settings are set for the device to be used + * later in the device probing. + * Returns 0 if no settings found. + */ +static unsigned long netdev_boot_base(const char *prefix, int unit) +{ + const struct netdev_boot_setup *s = dev_boot_setup; + char name[IFNAMSIZ]; + int i; + + sprintf(name, "%s%d", prefix, unit); + + /* + * If device already registered then return base of 1 + * to indicate not to probe for this interface + */ + if (__dev_get_by_name(&init_net, name)) + return 1; + + for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) + if (!strcmp(name, s[i].name)) + return s[i].map.base_addr; + return 0; +} + +/* + * Saves at boot time configured settings for any netdevice. + */ +static int __init netdev_boot_setup(char *str) +{ + int ints[5]; + struct ifmap map; + + str = get_options(str, ARRAY_SIZE(ints), ints); + if (!str || !*str) + return 0; + + /* Save settings */ + memset(&map, 0, sizeof(map)); + if (ints[0] > 0) + map.irq = ints[1]; + if (ints[0] > 1) + map.base_addr = ints[2]; + if (ints[0] > 2) + map.mem_start = ints[3]; + if (ints[0] > 3) + map.mem_end = ints[4]; + + /* Add new entry to the list */ + return netdev_boot_setup_add(str, &map); +} + +__setup("netdev=", netdev_boot_setup); + +static int __init ether_boot_setup(char *str) +{ + return netdev_boot_setup(str); +} +__setup("ether=", ether_boot_setup); + /* A unified ethernet device probe. This is the easiest way to have every - ethernet adaptor have the name "eth[0123...]". - */ - -extern struct net_device *hp100_probe(int unit); -extern struct net_device *ultra_probe(int unit); -extern struct net_device *wd_probe(int unit); -extern struct net_device *ne_probe(int unit); -extern struct net_device *fmv18x_probe(int unit); -extern struct net_device *i82596_probe(int unit); -extern struct net_device *ni65_probe(int unit); -extern struct net_device *sonic_probe(int unit); -extern struct net_device *smc_init(int unit); -extern struct net_device *atarilance_probe(int unit); -extern struct net_device *sun3lance_probe(int unit); -extern struct net_device *sun3_82586_probe(int unit); -extern struct net_device *apne_probe(int unit); -extern struct net_device *cs89x0_probe(int unit); -extern struct net_device *mvme147lance_probe(int unit); -extern struct net_device *tc515_probe(int unit); -extern struct net_device *lance_probe(int unit); -extern struct net_device *mac8390_probe(int unit); -extern struct net_device *mac89x0_probe(int unit); -extern struct net_device *cops_probe(int unit); -extern struct net_device *ltpc_probe(void); - -/* Fibre Channel adapters */ -extern int iph5526_probe(struct net_device *dev); - -/* SBNI adapters */ -extern int sbni_probe(int unit); + * ethernet adaptor have the name "eth[0123...]". + */ struct devprobe2 { struct net_device *(*probe)(int unit); @@ -73,6 +183,7 @@ struct devprobe2 { static int __init probe_list2(int unit, struct devprobe2 *p, int autoprobe) { struct net_device *dev; + for (; p->probe; p++) { if (autoprobe && p->status) continue; @@ -85,14 +196,10 @@ static int __init probe_list2(int unit, struct devprobe2 *p, int autoprobe) return -ENODEV; } -/* - * ISA probes that touch addresses < 0x400 (including those that also +/* ISA probes that touch addresses < 0x400 (including those that also * look for EISA/PCI cards in addition to ISA cards). */ static struct devprobe2 isa_probes[] __initdata = { -#if defined(CONFIG_HP100) && defined(CONFIG_ISA) /* ISA, EISA */ - {hp100_probe, 0}, -#endif #ifdef CONFIG_3C515 {tc515_probe, 0}, #endif @@ -102,8 +209,7 @@ static struct devprobe2 isa_probes[] __initdata = { #ifdef CONFIG_WD80x3 {wd_probe, 0}, #endif -#if defined(CONFIG_NE2000) || \ - defined(CONFIG_NE_H8300) /* ISA (use ne2k-pci for PCI cards) */ +#if defined(CONFIG_NE2000) /* ISA (use ne2k-pci for PCI cards) */ {ne_probe, 0}, #endif #ifdef CONFIG_LANCE /* ISA/VLB (use pcnet32 for PCI cards) */ @@ -112,47 +218,13 @@ static struct devprobe2 isa_probes[] __initdata = { #ifdef CONFIG_SMC9194 {smc_init, 0}, #endif -#ifdef CONFIG_CS89x0 -#ifndef CONFIG_CS89x0_PLATFORM - {cs89x0_probe, 0}, -#endif -#endif -#if defined(CONFIG_MVME16x_NET) || defined(CONFIG_BVME6000_NET) /* Intel I82596 */ - {i82596_probe, 0}, -#endif -#ifdef CONFIG_NI65 - {ni65_probe, 0}, +#ifdef CONFIG_CS89x0_ISA + {cs89x0_probe, 0}, #endif {NULL, 0}, }; -static struct devprobe2 m68k_probes[] __initdata = { -#ifdef CONFIG_ATARILANCE /* Lance-based Atari ethernet boards */ - {atarilance_probe, 0}, -#endif -#ifdef CONFIG_SUN3LANCE /* sun3 onboard Lance chip */ - {sun3lance_probe, 0}, -#endif -#ifdef CONFIG_SUN3_82586 /* sun3 onboard Intel 82586 chip */ - {sun3_82586_probe, 0}, -#endif -#ifdef CONFIG_APNE /* A1200 PCMCIA NE2000 */ - {apne_probe, 0}, -#endif -#ifdef CONFIG_MVME147_NET /* MVME147 internal Ethernet */ - {mvme147lance_probe, 0}, -#endif -#ifdef CONFIG_MAC8390 /* NuBus NS8390-based cards */ - {mac8390_probe, 0}, -#endif -#ifdef CONFIG_MAC89x0 - {mac89x0_probe, 0}, -#endif - {NULL, 0}, -}; - -/* - * Unified ethernet device probe, segmented per architecture and +/* Unified ethernet device probe, segmented per architecture and * per bus interface. This drives the legacy devices only for now. */ @@ -163,8 +235,7 @@ static void __init ethif_probe2(int unit) if (base_addr == 1) return; - (void)( probe_list2(unit, m68k_probes, base_addr == 0) && - probe_list2(unit, isa_probes, base_addr == 0)); + probe_list2(unit, isa_probes, base_addr == 0); } /* Statically configured drivers -- order matters here. */ @@ -172,22 +243,9 @@ static int __init net_olddevs_init(void) { int num; -#ifdef CONFIG_SBNI - for (num = 0; num < 8; ++num) - sbni_probe(num); -#endif for (num = 0; num < 8; ++num) ethif_probe2(num); -#ifdef CONFIG_COPS - cops_probe(0); - cops_probe(1); - cops_probe(2); -#endif -#ifdef CONFIG_LTPC - ltpc_probe(); -#endif - return 0; } |