/*
* 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:
* Stephen Hemminger (09/2003)
* - get rid of pre-linked dev list, dynamic device allocation
* Paul Gortmaker (03/2002)
* - struct init cleanup, enable multiple ISA autoprobes.
* 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.
*
* 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/etherdevice.h>
#include <linux/trdevice.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/netlink.h>
#include <linux/divert.h>
/* 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 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 express_probe(struct net_device *);
extern int eepro_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 i82596_probe(struct net_device *);
extern int ewrk3_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 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 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 struct net_device *cops_probe(int unit);
extern struct net_device *ltpc_probe(void);
/* Detachable devices ("pocket adaptors") */
extern int de620_probe(struct net_device *);
/* Fibre Channel adapters */
extern int iph5526_probe(struct net_device *dev);
/* SBNI adapters */
extern int sbni_probe(int unit);
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;
while (p->probe != NULL) {
if (base_addr && p->probe(dev) == 0) /* probe given addr */
return 0;
else if (p->status == 0) { /* has autoprobe failed yet? */
p->status = p->probe(dev); /* no, try autoprobe */
if (p->status == 0)
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
* legacy EISA only driver probes, and also the legacy PCI probes
*/
static struct devprobe eisa_probes[] __initdata = {
#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
{NULL, 0},
};
static struct devprobe mca_probes[] __initdata = {
#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_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
#if defined(CONFIG_NE2000) || defined(CONFIG_NE2K_CBUS) /* ISA & PC-9800 CBUS (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_EEXPRESS /* Intel EtherExpress */
{express_probe, 0},
#endif
#ifdef CONFIG_EEXPRESS_PRO /* Intel EtherExpress Pro/10 */
{eepro_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_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},
};
/*
* Unified ethernet device probe, segmented per architecture and
* per bus interface. This drives the legacy devices only for now.
*/
static int __init ethif_probe(int unit)
{
struct net_device *dev;
int err = -ENODEV;
dev = alloc_etherdev(0);
if (!dev)
return -ENOMEM;
sprintf(dev->name, "eth%d", unit);
netdev_boot_setup_check(dev);
/*
* Backwards compatibility - historically an I/O base of 1 was
* used to indicate not to probe for this ethN interface
*/
if (__dev_get_by_name(dev->name) || dev->base_addr == 1) {
free_netdev(dev);
return -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 ||
probe_list(dev, mips_probes) == 0 ||
probe_list(dev, eisa_probes) == 0 ||
probe_list(dev, mca_probes) == 0 ||
probe_list(dev, isa_probes) == 0 ||
probe_list(dev, parport_probes) == 0)
err = register_netdev(dev);
if (err)
free_netdev(dev);
return err;
}
#ifdef CONFIG_TR
/* Token-ring device probe */
extern int ibmtr_probe(struct net_device *);
extern int sk_isa_probe(struct net_device *);
extern int proteon_probe(struct net_device *);
extern int smctr_probe(struct net_device *);
static __init int trif_probe(int unit)
{
struct net_device *dev;
int err = -ENODEV;
dev = alloc_trdev(0);
if (!dev)
return -ENOMEM;
sprintf(dev->name, "tr%d", unit);
netdev_boot_setup_check(dev);
if (
#ifdef CONFIG_IBMTR
ibmtr_probe(dev) == 0 ||
#endif
#ifdef CONFIG_SKISA
sk_isa_probe(dev) == 0 ||
#endif
#ifdef CONFIG_PROTEON
proteon_probe(dev) == 0 ||
#endif
#ifdef CONFIG_SMCTR
smctr_probe(dev) == 0 ||
#endif
0 )
err = register_netdev(dev);
if (err)
free_netdev(dev);
return err;
}
#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(void);
/* Statically configured drivers -- order matters here. */
static int __init net_olddevs_init(void)
{
int num;
if (loopback_init()) {
printk(KERN_ERR "Network loopback device setup failed\n");
}
#ifdef CONFIG_SBNI
for (num = 0; num < 8; ++num)
sbni_probe(num);
#endif
#ifdef CONFIG_TR
for (num = 0; num < 8; ++num)
trif_probe(num);
#endif
for (num = 0; num < 8; ++num)
ethif_probe(num);
#ifdef CONFIG_COPS
cops_probe(0);
cops_probe(1);
cops_probe(2);
#endif
#ifdef CONFIG_LTPC
ltpc_probe();
#endif
return 0;
}
device_initcall(net_olddevs_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;
rwlock_t dev_base_lock = RW_LOCK_UNLOCKED;
EXPORT_SYMBOL(dev_base);
EXPORT_SYMBOL(dev_base_lock);
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