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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [net/] [Space.c] - Rev 1765
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/* * 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. * * Holds initial configuration information for devices. * * Version: @(#)Space.c 1.0.7 08/12/93 * * Authors: Ross Biro, <bir7@leland.Stanford.Edu> * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> * Donald J. Becker, <becker@scyld.com> * * Changelog: * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 09/1999 * - fix sbni: s/device/net_device/ * Paul Gortmaker (06/98): * - sort probes in a sane way, make sure all (safe) probes * get run once & failed autoprobes don't autoprobe again. * * FIXME: * Phase out placeholder dev entries put in the linked list * here in favour of drivers using init_etherdev(NULL, ...) * combined with a single find_all_devs() function (for 2.3) * * 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/config.h> #include <linux/netdevice.h> #include <linux/errno.h> #include <linux/init.h> #include <linux/netlink.h> #include <linux/divert.h> #define NEXT_DEV NULL /* A unified ethernet device probe. This is the easiest way to have every ethernet adaptor have the name "eth[0123...]". */ extern int ne2_probe(struct net_device *dev); extern int hp100_probe(struct net_device *dev); extern int ultra_probe(struct net_device *dev); extern int ultra32_probe(struct net_device *dev); extern int ultramca_probe(struct net_device *dev); extern int wd_probe(struct net_device *dev); extern int el2_probe(struct net_device *dev); extern int ne_probe(struct net_device *dev); extern int hp_probe(struct net_device *dev); extern int hp_plus_probe(struct net_device *dev); extern int znet_probe(struct net_device *); extern int express_probe(struct net_device *); extern int eepro_probe(struct net_device *); extern int el3_probe(struct net_device *); extern int at1500_probe(struct net_device *); extern int at1700_probe(struct net_device *); extern int fmv18x_probe(struct net_device *); extern int eth16i_probe(struct net_device *); extern int depca_probe(struct net_device *); extern int i82596_probe(struct net_device *); extern int ewrk3_probe(struct net_device *); extern int de4x5_probe(struct net_device *); extern int el1_probe(struct net_device *); extern int wavelan_probe(struct net_device *); extern int arlan_probe(struct net_device *); extern int el16_probe(struct net_device *); extern int elmc_probe(struct net_device *); extern int skmca_probe(struct net_device *); extern int elplus_probe(struct net_device *); extern int ac3200_probe(struct net_device *); extern int es_probe(struct net_device *); extern int lne390_probe(struct net_device *); extern int ne3210_probe(struct net_device *); extern int e2100_probe(struct net_device *); extern int ni5010_probe(struct net_device *); extern int ni52_probe(struct net_device *); extern int ni65_probe(struct net_device *); extern int sonic_probe(struct net_device *); extern int SK_init(struct net_device *); extern int seeq8005_probe(struct net_device *); extern int smc_init( struct net_device * ); extern int atarilance_probe(struct net_device *); extern int sun3lance_probe(struct net_device *); extern int sun3_82586_probe(struct net_device *); extern int apne_probe(struct net_device *); extern int bionet_probe(struct net_device *); extern int pamsnet_probe(struct net_device *); extern int cs89x0_probe(struct net_device *dev); extern int ethertap_probe(struct net_device *dev); extern int hplance_probe(struct net_device *dev); extern int bagetlance_probe(struct net_device *); extern int mvme147lance_probe(struct net_device *dev); extern int tc515_probe(struct net_device *dev); extern int lance_probe(struct net_device *dev); extern int mace_probe(struct net_device *dev); extern int macsonic_probe(struct net_device *dev); extern int mac8390_probe(struct net_device *dev); extern int mac89x0_probe(struct net_device *dev); extern int mc32_probe(struct net_device *dev); extern int oeth_probe(struct net_device *dev); /* Detachable devices ("pocket adaptors") */ extern int de600_probe(struct net_device *); extern int de620_probe(struct net_device *); /* FDDI adapters */ extern int skfp_probe(struct net_device *dev); /* Fibre Channel adapters */ extern int iph5526_probe(struct net_device *dev); /* SBNI adapters */ extern int sbni_probe(struct net_device *); struct devprobe { int (*probe)(struct net_device *dev); int status; /* non-zero if autoprobe has failed */ }; /* * probe_list walks a list of probe functions and calls each so long * as a non-zero ioaddr is given, or as long as it hasn't already failed * to find a card in the past (as recorded by "status") when asked to * autoprobe (i.e. a probe that fails to find a card when autoprobing * will not be asked to autoprobe again). It exits when a card is found. */ static int __init probe_list(struct net_device *dev, struct devprobe *plist) { struct devprobe *p = plist; unsigned long base_addr = dev->base_addr; #ifdef CONFIG_NET_DIVERT int ret; #endif /* CONFIG_NET_DIVERT */ while (p->probe != NULL) { if (base_addr && p->probe(dev) == 0) { /* probe given addr */ #ifdef CONFIG_NET_DIVERT ret = alloc_divert_blk(dev); if (ret) return ret; #endif /* CONFIG_NET_DIVERT */ return 0; } else if (p->status == 0) { /* has autoprobe failed yet? */ p->status = p->probe(dev); /* no, try autoprobe */ if (p->status == 0) { #ifdef CONFIG_NET_DIVERT ret = alloc_divert_blk(dev); if (ret) return ret; #endif /* CONFIG_NET_DIVERT */ return 0; } } p++; } return -ENODEV; } /* * This is a bit of an artificial separation as there are PCI drivers * that also probe for EISA cards (in the PCI group) and there are ISA * drivers that probe for EISA cards (in the ISA group). These are the * EISA only driver probes, and also the legacy PCI probes */ static struct devprobe eisa_probes[] __initdata = { #ifdef CONFIG_DE4X5 /* DEC DE425, DE434, DE435 adapters */ {de4x5_probe, 0}, #endif #ifdef CONFIG_ULTRA32 {ultra32_probe, 0}, #endif #ifdef CONFIG_AC3200 {ac3200_probe, 0}, #endif #ifdef CONFIG_ES3210 {es_probe, 0}, #endif #ifdef CONFIG_LNE390 {lne390_probe, 0}, #endif #ifdef CONFIG_NE3210 {ne3210_probe, 0}, #endif {NULL, 0}, }; static struct devprobe mca_probes[] __initdata = { #ifdef CONFIG_ULTRAMCA {ultramca_probe, 0}, #endif #ifdef CONFIG_NE2_MCA {ne2_probe, 0}, #endif #ifdef CONFIG_ELMC /* 3c523 */ {elmc_probe, 0}, #endif #ifdef CONFIG_ELMC_II /* 3c527 */ {mc32_probe, 0}, #endif #ifdef CONFIG_SKMC /* SKnet Microchannel */ {skmca_probe, 0}, #endif {NULL, 0}, }; /* * ISA probes that touch addresses < 0x400 (including those that also * look for EISA/PCI/MCA cards in addition to ISA cards). */ static struct devprobe isa_probes[] __initdata = { #ifdef CONFIG_EL3 /* ISA, EISA, MCA 3c5x9 */ {el3_probe, 0}, #endif #ifdef CONFIG_HP100 /* ISA, EISA & PCI */ {hp100_probe, 0}, #endif #ifdef CONFIG_3C515 {tc515_probe, 0}, #endif #ifdef CONFIG_ULTRA {ultra_probe, 0}, #endif #ifdef CONFIG_WD80x3 {wd_probe, 0}, #endif #ifdef CONFIG_EL2 /* 3c503 */ {el2_probe, 0}, #endif #ifdef CONFIG_HPLAN {hp_probe, 0}, #endif #ifdef CONFIG_HPLAN_PLUS {hp_plus_probe, 0}, #endif #ifdef CONFIG_E2100 /* Cabletron E21xx series. */ {e2100_probe, 0}, #endif #ifdef CONFIG_NE2000 /* ISA (use ne2k-pci for PCI cards) */ {ne_probe, 0}, #endif #ifdef CONFIG_LANCE /* ISA/VLB (use pcnet32 for PCI cards) */ {lance_probe, 0}, #endif #ifdef CONFIG_SMC9194 {smc_init, 0}, #endif #ifdef CONFIG_SEEQ8005 {seeq8005_probe, 0}, #endif #ifdef CONFIG_AT1500 {at1500_probe, 0}, #endif #ifdef CONFIG_CS89x0 {cs89x0_probe, 0}, #endif #ifdef CONFIG_AT1700 {at1700_probe, 0}, #endif #ifdef CONFIG_FMV18X /* Fujitsu FMV-181/182 */ {fmv18x_probe, 0}, #endif #ifdef CONFIG_ETH16I {eth16i_probe, 0}, /* ICL EtherTeam 16i/32 */ #endif #ifdef CONFIG_ZNET /* Zenith Z-Note and some IBM Thinkpads. */ {znet_probe, 0}, #endif #ifdef CONFIG_EEXPRESS /* Intel EtherExpress */ {express_probe, 0}, #endif #ifdef CONFIG_EEXPRESS_PRO /* Intel EtherExpress Pro/10 */ {eepro_probe, 0}, #endif #ifdef CONFIG_DEPCA /* DEC DEPCA */ {depca_probe, 0}, #endif #ifdef CONFIG_EWRK3 /* DEC EtherWORKS 3 */ {ewrk3_probe, 0}, #endif #if defined(CONFIG_APRICOT) || defined(CONFIG_MVME16x_NET) || defined(CONFIG_BVME6000_NET) /* Intel I82596 */ {i82596_probe, 0}, #endif #ifdef CONFIG_EL1 /* 3c501 */ {el1_probe, 0}, #endif #ifdef CONFIG_WAVELAN /* WaveLAN */ {wavelan_probe, 0}, #endif #ifdef CONFIG_ARLAN /* Aironet */ {arlan_probe, 0}, #endif #ifdef CONFIG_EL16 /* 3c507 */ {el16_probe, 0}, #endif #ifdef CONFIG_ELPLUS /* 3c505 */ {elplus_probe, 0}, #endif #ifdef CONFIG_SK_G16 {SK_init, 0}, #endif #ifdef CONFIG_NI5010 {ni5010_probe, 0}, #endif #ifdef CONFIG_NI52 {ni52_probe, 0}, #endif #ifdef CONFIG_NI65 {ni65_probe, 0}, #endif {NULL, 0}, }; static struct devprobe parport_probes[] __initdata = { #ifdef CONFIG_DE600 /* D-Link DE-600 adapter */ {de600_probe, 0}, #endif #ifdef CONFIG_DE620 /* D-Link DE-620 adapter */ {de620_probe, 0}, #endif {NULL, 0}, }; static struct devprobe 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_ATARI_BIONET /* Atari Bionet Ethernet board */ {bionet_probe, 0}, #endif #ifdef CONFIG_ATARI_PAMSNET /* Atari PAMsNet Ethernet board */ {pamsnet_probe, 0}, #endif #ifdef CONFIG_HPLANCE /* HP300 internal Ethernet */ {hplance_probe, 0}, #endif #ifdef CONFIG_MVME147_NET /* MVME147 internal Ethernet */ {mvme147lance_probe, 0}, #endif #ifdef CONFIG_MACMACE /* Mac 68k Quadra AV builtin Ethernet */ {mace_probe, 0}, #endif #ifdef CONFIG_MACSONIC /* Mac SONIC-based Ethernet of all sorts */ {macsonic_probe, 0}, #endif #ifdef CONFIG_MAC8390 /* NuBus NS8390-based cards */ {mac8390_probe, 0}, #endif #ifdef CONFIG_MAC89x0 {mac89x0_probe, 0}, #endif {NULL, 0}, }; static struct devprobe mips_probes[] __initdata = { #ifdef CONFIG_MIPS_JAZZ_SONIC {sonic_probe, 0}, #endif #ifdef CONFIG_BAGETLANCE /* Lance-based Baget ethernet boards */ {bagetlance_probe, 0}, #endif {NULL, 0}, }; static struct devprobe or32_probes[] __initdata = { #ifdef CONFIG_OETH {oeth_probe, 0}, #endif {NULL, 0}, }; /* * Unified ethernet device probe, segmented per architecture and * per bus interface. This drives the legacy devices only for now. */ static int __init ethif_probe(struct net_device *dev) { unsigned long base_addr = dev->base_addr; /* * Backwards compatibility - historically an I/O base of 1 was * used to indicate not to probe for this ethN interface */ if (base_addr == 1) return 1; /* ENXIO */ /* * The arch specific probes are 1st so that any on-board ethernet * will be probed before other ISA/EISA/MCA/PCI bus cards. */ if (probe_list(dev, m68k_probes) == 0) return 0; if (probe_list(dev, mips_probes) == 0) return 0; if (probe_list(dev, or32_probes) == 0) return 0; if (probe_list(dev, eisa_probes) == 0) return 0; if (probe_list(dev, mca_probes) == 0) return 0; /* * Backwards compatibility - an I/O of 0xffe0 was used to indicate * that we shouldn't do a bunch of potentially risky ISA probes * for ethN (N>1). Since the widespread use of modules, *nobody* * compiles a kernel with all the ISA drivers built in anymore, * and so we should delete this check in linux 2.3 - Paul G. */ if (base_addr != 0xffe0 && probe_list(dev, isa_probes) == 0) return 0; if (probe_list(dev, parport_probes) == 0) return 0; return -ENODEV; } #ifdef CONFIG_FDDI static int __init fddiif_probe(struct net_device *dev) { unsigned long base_addr = dev->base_addr; if (base_addr == 1) return 1; /* ENXIO */ if (1 #ifdef CONFIG_APFDDI && apfddi_init(dev) #endif #ifdef CONFIG_SKFP && skfp_probe(dev) #endif && 1 ) { return 1; /* -ENODEV or -EAGAIN would be more accurate. */ } return 0; } #endif #ifdef CONFIG_NET_FC static int fcif_probe(struct net_device *dev) { if (dev->base_addr == -1) return 1; if (1 #ifdef CONFIG_IPHASE5526 && iph5526_probe(dev) #endif && 1 ) { return 1; /* -ENODEV or -EAGAIN would be more accurate. */ } return 0; } #endif /* CONFIG_NET_FC */ #ifdef CONFIG_ETHERTAP static struct net_device tap0_dev = { "tap0", 0, 0, 0, 0, NETLINK_TAPBASE, 0, 0, 0, 0, NEXT_DEV, ethertap_probe, }; # undef NEXT_DEV # define NEXT_DEV (&tap0_dev) #endif #ifdef CONFIG_SDLA extern int sdla_init(struct net_device *); static struct net_device sdla0_dev = { "sdla0", 0, 0, 0, 0, 0, 0, 0, 0, 0, NEXT_DEV, sdla_init, }; # undef NEXT_DEV # define NEXT_DEV (&sdla0_dev) #endif #if defined(CONFIG_LTPC) extern int ltpc_probe(struct net_device *); static struct net_device dev_ltpc = { "lt0", 0, 0, 0, 0, 0x0, 0, 0, 0, 0, NEXT_DEV, ltpc_probe }; # undef NEXT_DEV # define NEXT_DEV (&dev_ltpc) #endif /* LTPC */ #if defined(CONFIG_COPS) extern int cops_probe(struct net_device *); static struct net_device cops2_dev = { "lt2", 0, 0, 0, 0, 0x0, 0, 0, 0, 0, NEXT_DEV, cops_probe }; static struct net_device cops1_dev = { "lt1", 0, 0, 0, 0, 0x0, 0, 0, 0, 0, &cops2_dev, cops_probe }; static struct net_device cops0_dev = { "lt0", 0, 0, 0, 0, 0x0, 0, 0, 0, 0, &cops1_dev, cops_probe }; # undef NEXT_DEV # define NEXT_DEV (&cops0_dev) #endif /* COPS */ /* The first device defaults to I/O base '0', which means autoprobe. */ #ifndef ETH0_ADDR # define ETH0_ADDR 0 #endif #ifndef ETH0_IRQ # define ETH0_IRQ 0 #endif /* "eth0" defaults to autoprobe (== 0), other use a base of 0xffe0 (== -0x20), which means "don't do ISA probes". Distributions don't ship kernels with all ISA drivers compiled in anymore, so its probably no longer an issue. */ #define ETH_NOPROBE_ADDR 0xffe0 static struct net_device eth7_dev = { "eth%d", 0,0,0,0,ETH_NOPROBE_ADDR /* I/O base*/, 0,0,0,0, NEXT_DEV, ethif_probe }; static struct net_device eth6_dev = { "eth%d", 0,0,0,0,ETH_NOPROBE_ADDR /* I/O base*/, 0,0,0,0, ð7_dev, ethif_probe }; static struct net_device eth5_dev = { "eth%d", 0,0,0,0,ETH_NOPROBE_ADDR /* I/O base*/, 0,0,0,0, ð6_dev, ethif_probe }; static struct net_device eth4_dev = { "eth%d", 0,0,0,0,ETH_NOPROBE_ADDR /* I/O base*/, 0,0,0,0, ð5_dev, ethif_probe }; static struct net_device eth3_dev = { "eth%d", 0,0,0,0,ETH_NOPROBE_ADDR /* I/O base*/, 0,0,0,0, ð4_dev, ethif_probe }; static struct net_device eth2_dev = { "eth%d", 0,0,0,0,ETH_NOPROBE_ADDR /* I/O base*/, 0,0,0,0, ð3_dev, ethif_probe }; static struct net_device eth1_dev = { "eth%d", 0,0,0,0,ETH_NOPROBE_ADDR /* I/O base*/, 0,0,0,0, ð2_dev, ethif_probe }; static struct net_device eth0_dev = { "eth%d", 0, 0, 0, 0, ETH0_ADDR, ETH0_IRQ, 0, 0, 0, ð1_dev, ethif_probe }; # undef NEXT_DEV # define NEXT_DEV (ð0_dev) #ifdef CONFIG_TR /* Token-ring device probe */ extern int ibmtr_probe(struct net_device *); extern int smctr_probe(struct net_device *); static int trif_probe(struct net_device *dev) { if (1 #ifdef CONFIG_IBMTR && ibmtr_probe(dev) #endif #ifdef CONFIG_SMCTR && smctr_probe(dev) #endif && 1 ) { return 1; /* -ENODEV or -EAGAIN would be more accurate. */ } return 0; } static struct net_device tr7_dev = { "tr%d",0,0,0,0,0,0,0,0,0, NEXT_DEV, trif_probe }; static struct net_device tr6_dev = { "tr%d",0,0,0,0,0,0,0,0,0, &tr7_dev, trif_probe }; static struct net_device tr5_dev = { "tr%d",0,0,0,0,0,0,0,0,0, &tr6_dev, trif_probe }; static struct net_device tr4_dev = { "tr%d",0,0,0,0,0,0,0,0,0, &tr5_dev, trif_probe }; static struct net_device tr3_dev = { "tr%d",0,0,0,0,0,0,0,0,0, &tr4_dev, trif_probe }; static struct net_device tr2_dev = { "tr%d",0,0,0,0,0,0,0,0,0, &tr3_dev, trif_probe }; static struct net_device tr1_dev = { "tr%d",0,0,0,0,0,0,0,0,0, &tr2_dev, trif_probe }; static struct net_device tr0_dev = { "tr%d",0,0,0,0,0,0,0,0,0, &tr1_dev, trif_probe }; # undef NEXT_DEV # define NEXT_DEV (&tr0_dev) #endif #ifdef CONFIG_FDDI static struct net_device fddi7_dev = {"fddi7", 0, 0, 0, 0, 0, 0, 0, 0, 0, NEXT_DEV, fddiif_probe}; static struct net_device fddi6_dev = {"fddi6", 0, 0, 0, 0, 0, 0, 0, 0, 0, &fddi7_dev, fddiif_probe}; static struct net_device fddi5_dev = {"fddi5", 0, 0, 0, 0, 0, 0, 0, 0, 0, &fddi6_dev, fddiif_probe}; static struct net_device fddi4_dev = {"fddi4", 0, 0, 0, 0, 0, 0, 0, 0, 0, &fddi5_dev, fddiif_probe}; static struct net_device fddi3_dev = {"fddi3", 0, 0, 0, 0, 0, 0, 0, 0, 0, &fddi4_dev, fddiif_probe}; static struct net_device fddi2_dev = {"fddi2", 0, 0, 0, 0, 0, 0, 0, 0, 0, &fddi3_dev, fddiif_probe}; static struct net_device fddi1_dev = {"fddi1", 0, 0, 0, 0, 0, 0, 0, 0, 0, &fddi2_dev, fddiif_probe}; static struct net_device fddi0_dev = {"fddi0", 0, 0, 0, 0, 0, 0, 0, 0, 0, &fddi1_dev, fddiif_probe}; #undef NEXT_DEV #define NEXT_DEV (&fddi0_dev) #endif #ifdef CONFIG_NET_FC static struct net_device fc1_dev = { "fc1", 0, 0, 0, 0, 0, 0, 0, 0, 0, NEXT_DEV, fcif_probe}; static struct net_device fc0_dev = { "fc0", 0, 0, 0, 0, 0, 0, 0, 0, 0, &fc1_dev, fcif_probe}; # undef NEXT_DEV # define NEXT_DEV (&fc0_dev) #endif #ifdef CONFIG_SBNI static struct net_device sbni7_dev = {"sbni7", 0, 0, 0, 0, 0, 0, 0, 0, 0, NEXT_DEV, sbni_probe}; static struct net_device sbni6_dev = {"sbni6", 0, 0, 0, 0, 0, 0, 0, 0, 0, &sbni7_dev, sbni_probe}; static struct net_device sbni5_dev = {"sbni5", 0, 0, 0, 0, 0, 0, 0, 0, 0, &sbni6_dev, sbni_probe}; static struct net_device sbni4_dev = {"sbni4", 0, 0, 0, 0, 0, 0, 0, 0, 0, &sbni5_dev, sbni_probe}; static struct net_device sbni3_dev = {"sbni3", 0, 0, 0, 0, 0, 0, 0, 0, 0, &sbni4_dev, sbni_probe}; static struct net_device sbni2_dev = {"sbni2", 0, 0, 0, 0, 0, 0, 0, 0, 0, &sbni3_dev, sbni_probe}; static struct net_device sbni1_dev = {"sbni1", 0, 0, 0, 0, 0, 0, 0, 0, 0, &sbni2_dev, sbni_probe}; static struct net_device sbni0_dev = {"sbni0", 0, 0, 0, 0, 0, 0, 0, 0, 0, &sbni1_dev, sbni_probe}; #undef NEXT_DEV #define NEXT_DEV (&sbni0_dev) #endif /* * The loopback device is global so it can be directly referenced * by the network code. Also, it must be first on device list. */ extern int loopback_init(struct net_device *dev); struct net_device loopback_dev = {"lo", 0, 0, 0, 0, 0, 0, 0, 0, 0, NEXT_DEV, loopback_init}; /* * The @dev_base list is protected by @dev_base_lock and the rtln * semaphore. * * Pure readers hold dev_base_lock for reading. * * Writers must hold the rtnl semaphore while they loop through the * dev_base list, and hold dev_base_lock for writing when they do the * actual updates. This allows pure readers to access the list even * while a writer is preparing to update it. * * To put it another way, dev_base_lock is held for writing only to * protect against pure readers; the rtnl semaphore provides the * protection against other writers. * * See, for example usages, register_netdevice() and * unregister_netdevice(), which must be called with the rtnl * semaphore held. */ struct net_device *dev_base = &loopback_dev; rwlock_t dev_base_lock = RW_LOCK_UNLOCKED;