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linux_dsm_epyc7002/drivers/net/Space.c
Finn Thain 8b6aaab8c8 m68k: macmace fixes 
Fix a race condition in the transmit code, where the dma interrupt could update
the free tx buffer count concurrently and wedge the tx queue.

Fix the misuse of the rx frame status and rx frame length registers: no more
"fifo overrun" errors caused by the OFLOW bit being tested in the frame length
register (instead of the status register), and no more missed packets due to
incorrect length taken from status register (instead of the frame length
register).

Fix a panic (skb_over_panic BUG) caused by allocating and then copying an
incoming packet while the packet length register was changing.

Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC
functions when MacOS does not initialise it (important for anyone wanting to
use the Emile boot loader).

Cut-and-paste the error counting and timeout recovery code from mace.c.

Fix over allocation of rx buffer memory (it's page order, not page count).

Converted to driver model.

Converted to DMA API.

Since I've run out of ways to make it fail, and since it performs well now,
promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and
660av.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-04 17:59:07 -07:00

374 lines
9.8 KiB
C
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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
* 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/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/trdevice.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/netlink.h>
/* A unified ethernet device probe. This is the easiest way to have every
ethernet adaptor have the name "eth[0123...]".
*/
extern struct net_device *ne2_probe(int unit);
extern struct net_device *hp100_probe(int unit);
extern struct net_device *ultra_probe(int unit);
extern struct net_device *ultra32_probe(int unit);
extern struct net_device *wd_probe(int unit);
extern struct net_device *el2_probe(int unit);
extern struct net_device *ne_probe(int unit);
extern struct net_device *hp_probe(int unit);
extern struct net_device *hp_plus_probe(int unit);
extern struct net_device *express_probe(int unit);
extern struct net_device *eepro_probe(int unit);
extern struct net_device *at1700_probe(int unit);
extern struct net_device *fmv18x_probe(int unit);
extern struct net_device *eth16i_probe(int unit);
extern struct net_device *i82596_probe(int unit);
extern struct net_device *ewrk3_probe(int unit);
extern struct net_device *el1_probe(int unit);
extern struct net_device *wavelan_probe(int unit);
extern struct net_device *arlan_probe(int unit);
extern struct net_device *el16_probe(int unit);
extern struct net_device *elmc_probe(int unit);
extern struct net_device *elplus_probe(int unit);
extern struct net_device *ac3200_probe(int unit);
extern struct net_device *es_probe(int unit);
extern struct net_device *lne390_probe(int unit);
extern struct net_device *e2100_probe(int unit);
extern struct net_device *ni5010_probe(int unit);
extern struct net_device *ni52_probe(int unit);
extern struct net_device *ni65_probe(int unit);
extern struct net_device *sonic_probe(int unit);
extern struct net_device *SK_init(int unit);
extern struct net_device *seeq8005_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 *bionet_probe(int unit);
extern struct net_device *pamsnet_probe(int unit);
extern struct net_device *cs89x0_probe(int unit);
extern struct net_device *hplance_probe(int unit);
extern struct net_device *bagetlance_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 *mc32_probe(int unit);
extern struct net_device *cops_probe(int unit);
extern struct net_device *ltpc_probe(void);
/* Detachable devices ("pocket adaptors") */
extern struct net_device *de620_probe(int unit);
/* Fibre Channel adapters */
extern int iph5526_probe(struct net_device *dev);
/* SBNI adapters */
extern int sbni_probe(int unit);
struct devprobe2 {
struct net_device *(*probe)(int unit);
int status; /* non-zero if autoprobe has failed */
};
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;
dev = p->probe(unit);
if (!IS_ERR(dev))
return 0;
if (autoprobe)
p->status = PTR_ERR(dev);
}
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 devprobe2 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 devprobe2 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
{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 devprobe2 isa_probes[] __initdata = {
#if defined(CONFIG_HP100) && defined(CONFIG_ISA) /* ISA, EISA */
{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_NE_H8300) /* 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_CS89x0
{cs89x0_probe, 0},
#endif
#ifdef CONFIG_AT1700
{at1700_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_NI5010
{ni5010_probe, 0},
#endif
#ifdef CONFIG_NI52
{ni52_probe, 0},
#endif
#ifdef CONFIG_NI65
{ni65_probe, 0},
#endif
{NULL, 0},
};
static struct devprobe2 parport_probes[] __initdata = {
#ifdef CONFIG_DE620 /* D-Link DE-620 adapter */
{de620_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_ATARI_BIONET /* Atari Bionet Ethernet board */
{bionet_probe, 0},
#endif
#ifdef CONFIG_ATARI_PAMSNET /* Atari PAMsNet Ethernet board */
{pamsnet_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
* per bus interface. This drives the legacy devices only for now.
*/
static void __init ethif_probe2(int unit)
{
unsigned long base_addr = netdev_boot_base("eth", unit);
if (base_addr == 1)
return;
(void)( probe_list2(unit, m68k_probes, base_addr == 0) &&
probe_list2(unit, eisa_probes, base_addr == 0) &&
probe_list2(unit, mca_probes, base_addr == 0) &&
probe_list2(unit, isa_probes, base_addr == 0) &&
probe_list2(unit, parport_probes, base_addr == 0));
}
#ifdef CONFIG_TR
/* Token-ring device probe */
extern int ibmtr_probe_card(struct net_device *);
extern struct net_device *smctr_probe(int unit);
static struct devprobe2 tr_probes2[] __initdata = {
#ifdef CONFIG_SMCTR
{smctr_probe, 0},
#endif
{NULL, 0},
};
static __init int trif_probe(int unit)
{
int err = -ENODEV;
#ifdef CONFIG_IBMTR
struct net_device *dev = alloc_trdev(0);
if (!dev)
return -ENOMEM;
sprintf(dev->name, "tr%d", unit);
netdev_boot_setup_check(dev);
err = ibmtr_probe_card(dev);
if (err)
free_netdev(dev);
#endif
return err;
}
static void __init trif_probe2(int unit)
{
unsigned long base_addr = netdev_boot_base("tr", unit);
if (base_addr == 1)
return;
probe_list2(unit, tr_probes2, base_addr == 0);
}
#endif
/* Statically configured drivers -- order matters here. */
static int __init net_olddevs_init(void)
{
int num;
#ifdef CONFIG_SBNI
for (num = 0; num < 8; ++num)
sbni_probe(num);
#endif
#ifdef CONFIG_TR
for (num = 0; num < 8; ++num)
if (!trif_probe(num))
trif_probe2(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;
}
device_initcall(net_olddevs_init);
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