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Commit a5e371f6 authored by Paul Gortmaker's avatar Paul Gortmaker
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drivers/net: delete all code/drivers depending on CONFIG_MCA 

The support for CONFIG_MCA is being removed, since the 20
year old hardware simply isn't capable of meeting today's
software demands on CPU and memory resources.

This commit removes any MCA specific net drivers, and removes
any MCA specific probe/support code from drivers that were
doing a dual ISA/MCA role.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: netdev@vger.kernel.org
Signed-off-by: default avatarPaul Gortmaker <paul.gortmaker@windriver.com>
parent bc6a4744
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Showing with 18 additions and 5369 deletions
Documentation/networking/3c509.txt
View file @ a5e371f6
......@@ -25,7 +25,6 @@ models:
3c509B (later revision of the ISA card; supports full-duplex)
3c589 (PCMCIA)
3c589B (later revision of the 3c589; supports full-duplex)
3c529 (MCA)
3c579 (EISA)
Large portions of this documentation were heavily borrowed from the guide
......
Documentation/networking/fore200e.txt
View file @ a5e371f6
......@@ -11,12 +11,10 @@ i386, alpha (untested), powerpc, sparc and sparc64 archs.
The intent is to enable the use of different models of FORE adapters at the
same time, by hosts that have several bus interfaces (such as PCI+SBUS,
PCI+MCA or PCI+EISA).
or PCI+EISA).
Only PCI and SBUS devices are currently supported by the driver, but support
for other bus interfaces such as EISA should not be too hard to add (this may
be more tricky for the MCA bus, though, as FORE made some MCA-specific
modifications to the adapter's AALI interface).
for other bus interfaces such as EISA should not be too hard to add.
Firmware Copyright Notice
......
drivers/net/Space.c
View file @ a5e371f6
......@@ -133,22 +133,9 @@ static struct devprobe2 eisa_probes[] __initdata = {
{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).
* 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 */
......@@ -278,7 +265,6 @@ static void __init ethif_probe2(int unit)
(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));
}
......
drivers/net/ethernet/3com/3c509.c
View file @ a5e371f6
......@@ -69,7 +69,6 @@
#define TX_TIMEOUT (400*HZ/1000)
#include <linux/module.h>
#include <linux/mca.h>
#include <linux/isa.h>
#include <linux/pnp.h>
#include <linux/string.h>
......@@ -102,7 +101,7 @@ static int el3_debug = 2;
#endif
/* Used to do a global count of all the cards in the system. Must be
* a global variable so that the mca/eisa probe routines can increment
* a global variable so that the eisa probe routines can increment
* it */
static int el3_cards = 0;
#define EL3_MAX_CARDS 8
......@@ -163,7 +162,7 @@ enum RxFilter {
*/
#define SKB_QUEUE_SIZE 64
enum el3_cardtype { EL3_ISA, EL3_PNP, EL3_MCA, EL3_EISA };
enum el3_cardtype { EL3_ISA, EL3_PNP, EL3_EISA };
struct el3_private {
spinlock_t lock;
......@@ -505,41 +504,6 @@ static struct eisa_driver el3_eisa_driver = {
static int eisa_registered;
#endif
#ifdef CONFIG_MCA
static int el3_mca_probe(struct device *dev);
static short el3_mca_adapter_ids[] __initdata = {
0x627c,
0x627d,
0x62db,
0x62f6,
0x62f7,
0x0000
};
static char *el3_mca_adapter_names[] __initdata = {
"3Com 3c529 EtherLink III (10base2)",
"3Com 3c529 EtherLink III (10baseT)",
"3Com 3c529 EtherLink III (test mode)",
"3Com 3c529 EtherLink III (TP or coax)",
"3Com 3c529 EtherLink III (TP)",
NULL
};
static struct mca_driver el3_mca_driver = {
.id_table = el3_mca_adapter_ids,
.driver = {
.name = "3c529",
.bus = &mca_bus_type,
.probe = el3_mca_probe,
.remove = __devexit_p(el3_device_remove),
.suspend = el3_suspend,
.resume = el3_resume,
},
};
static int mca_registered;
#endif /* CONFIG_MCA */
static const struct net_device_ops netdev_ops = {
.ndo_open = el3_open,
.ndo_stop = el3_close,
......@@ -600,76 +564,6 @@ static void el3_common_remove (struct net_device *dev)
free_netdev (dev);
}
#ifdef CONFIG_MCA
static int __init el3_mca_probe(struct device *device)
{
/* Based on Erik Nygren's (nygren@mit.edu) 3c529 patch,
* heavily modified by Chris Beauregard
* (cpbeaure@csclub.uwaterloo.ca) to support standard MCA
* probing.
*
* redone for multi-card detection by ZP Gu (zpg@castle.net)
* now works as a module */
short i;
int ioaddr, irq, if_port;
__be16 phys_addr[3];
struct net_device *dev = NULL;
u_char pos4, pos5;
struct mca_device *mdev = to_mca_device(device);
int slot = mdev->slot;
int err;
pos4 = mca_device_read_stored_pos(mdev, 4);
pos5 = mca_device_read_stored_pos(mdev, 5);
ioaddr = ((short)((pos4&0xfc)|0x02)) << 8;
irq = pos5 & 0x0f;
pr_info("3c529: found %s at slot %d\n",
el3_mca_adapter_names[mdev->index], slot + 1);
/* claim the slot */
strncpy(mdev->name, el3_mca_adapter_names[mdev->index],
sizeof(mdev->name));
mca_device_set_claim(mdev, 1);
if_port = pos4 & 0x03;
irq = mca_device_transform_irq(mdev, irq);
ioaddr = mca_device_transform_ioport(mdev, ioaddr);
if (el3_debug > 2) {
pr_debug("3c529: irq %d ioaddr 0x%x ifport %d\n", irq, ioaddr, if_port);
}
EL3WINDOW(0);
for (i = 0; i < 3; i++)
phys_addr[i] = htons(read_eeprom(ioaddr, i));
dev = alloc_etherdev(sizeof (struct el3_private));
if (dev == NULL) {
release_region(ioaddr, EL3_IO_EXTENT);
return -ENOMEM;
}
netdev_boot_setup_check(dev);
el3_dev_fill(dev, phys_addr, ioaddr, irq, if_port, EL3_MCA);
dev_set_drvdata(device, dev);
err = el3_common_init(dev);
if (err) {
dev_set_drvdata(device, NULL);
free_netdev(dev);
return -ENOMEM;
}
el3_devs[el3_cards++] = dev;
return 0;
}
#endif /* CONFIG_MCA */
#ifdef CONFIG_EISA
static int __init el3_eisa_probe (struct device *device)
{
......@@ -1547,11 +1441,6 @@ static int __init el3_init_module(void)
if (!ret)
eisa_registered = 1;
#endif
#ifdef CONFIG_MCA
ret = mca_register_driver(&el3_mca_driver);
if (!ret)
mca_registered = 1;
#endif
#ifdef CONFIG_PNP
if (pnp_registered)
......@@ -1562,10 +1451,6 @@ static int __init el3_init_module(void)
#ifdef CONFIG_EISA
if (eisa_registered)
ret = 0;
#endif
#ifdef CONFIG_MCA
if (mca_registered)
ret = 0;
#endif
return ret;
}
......@@ -1584,10 +1469,6 @@ static void __exit el3_cleanup_module(void)
if (eisa_registered)
eisa_driver_unregister(&el3_eisa_driver);
#endif
#ifdef CONFIG_MCA
if (mca_registered)
mca_unregister_driver(&el3_mca_driver);
#endif
}
module_init (el3_init_module);
......
drivers/net/ethernet/8390/Kconfig
View file @ a5e371f6
......@@ -182,18 +182,6 @@ config NE2000
To compile this driver as a module, choose M here. The module
will be called ne.
config NE2_MCA
tristate "NE/2 (ne2000 MCA version) support"
depends on MCA_LEGACY
select CRC32
---help---
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
<http://www.tldp.org/docs.html#howto>.
To compile this driver as a module, choose M here. The module
will be called ne2.
config NE2K_PCI
tristate "PCI NE2000 and clones support (see help)"
depends on PCI
......@@ -267,18 +255,6 @@ config STNIC
If unsure, say N.
config ULTRAMCA
tristate "SMC Ultra MCA support"
depends on MCA
select CRC32
---help---
If you have a network (Ethernet) card of this type and are running
an MCA based system (PS/2), say Y and read the Ethernet-HOWTO,
available from <http://www.tldp.org/docs.html#howto>.
To compile this driver as a module, choose M here. The module
will be called smc-mca.
config ULTRA
tristate "SMC Ultra support"
depends on ISA
......
drivers/net/ethernet/8390/Makefile
View file @ a5e371f6
......@@ -24,6 +24,5 @@ obj-$(CONFIG_PCMCIA_PCNET) += pcnet_cs.o 8390.o
obj-$(CONFIG_STNIC) += stnic.o 8390.o
obj-$(CONFIG_ULTRA) += smc-ultra.o 8390.o
obj-$(CONFIG_ULTRA32) += smc-ultra32.o 8390.o
obj-$(CONFIG_ULTRAMCA) += smc-mca.o 8390.o
obj-$(CONFIG_WD80x3) += wd.o 8390.o
obj-$(CONFIG_ZORRO8390) += zorro8390.o 8390.o
drivers/net/ethernet/8390/ne2.c deleted 100644 → 0
View file @ bc6a4744
/* ne2.c: A NE/2 Ethernet Driver for Linux. */
/*
Based on the NE2000 driver written by Donald Becker (1992-94).
modified by Wim Dumon (Apr 1996)
This software may be used and distributed according to the terms
of the GNU General Public License, incorporated herein by reference.
The author may be reached as wimpie@linux.cc.kuleuven.ac.be
Currently supported: NE/2
This patch was never tested on other MCA-ethernet adapters, but it
might work. Just give it a try and let me know if you have problems.
Also mail me if it really works, please!
Changelog:
Mon Feb 3 16:26:02 MET 1997
- adapted the driver to work with the 2.1.25 kernel
- multiple ne2 support (untested)
- module support (untested)
Fri Aug 28 00:18:36 CET 1998 (David Weinehall)
- fixed a few minor typos
- made the MODULE_PARM conditional (it only works with the v2.1.x kernels)
- fixed the module support (Now it's working...)
Mon Sep 7 19:01:44 CET 1998 (David Weinehall)
- added support for Arco Electronics AE/2-card (experimental)
Mon Sep 14 09:53:42 CET 1998 (David Weinehall)
- added support for Compex ENET-16MC/P (experimental)
Tue Sep 15 16:21:12 CET 1998 (David Weinehall, Magnus Jonsson, Tomas Ogren)
- Miscellaneous bugfixes
Tue Sep 19 16:21:12 CET 1998 (Magnus Jonsson)
- Cleanup
Wed Sep 23 14:33:34 CET 1998 (David Weinehall)
- Restructuring and rewriting for v2.1.x compliance
Wed Oct 14 17:19:21 CET 1998 (David Weinehall)
- Added code that unregisters irq and proc-info
- Version# bump
Mon Nov 16 15:28:23 CET 1998 (Wim Dumon)
- pass 'dev' as last parameter of request_irq in stead of 'NULL'
Wed Feb 7 21:24:00 CET 2001 (Alfred Arnold)
- added support for the D-Link DE-320CT
* WARNING
-------
This is alpha-test software. It is not guaranteed to work. As a
matter of fact, I'm quite sure there are *LOTS* of bugs in here. I
would like to hear from you if you use this driver, even if it works.
If it doesn't work, be sure to send me a mail with the problems !
*/
static const char *version = "ne2.c:v0.91 Nov 16 1998 Wim Dumon <wimpie@kotnet.org>\n";
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/fcntl.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/in.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/mca-legacy.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/bitops.h>
#include <linux/jiffies.h>
#include <asm/io.h>
#include <asm/dma.h>
#include "8390.h"
#define DRV_NAME "ne2"
/* Some defines that people can play with if so inclined. */
/* Do we perform extra sanity checks on stuff ? */
/* #define NE_SANITY_CHECK */
/* Do we implement the read before write bugfix ? */
/* #define NE_RW_BUGFIX */
/* Do we have a non std. amount of memory? (in units of 256 byte pages) */
/* #define PACKETBUF_MEMSIZE 0x40 */
/* ---- No user-serviceable parts below ---- */
#define NE_BASE (dev->base_addr)
#define NE_CMD 0x00
#define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */
#define NE_RESET 0x20 /* Issue a read to reset, a write to clear. */
#define NE_IO_EXTENT 0x30
#define NE1SM_START_PG 0x20 /* First page of TX buffer */
#define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */
#define NESM_START_PG 0x40 /* First page of TX buffer */
#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */
/* From the .ADF file: */
static unsigned int addresses[7] __initdata =
{0x1000, 0x2020, 0x8020, 0xa0a0, 0xb0b0, 0xc0c0, 0xc3d0};
static int irqs[4] __initdata = {3, 4, 5, 9};
/* From the D-Link ADF file: */
static unsigned int dlink_addresses[4] __initdata =
{0x300, 0x320, 0x340, 0x360};
static int dlink_irqs[8] __initdata = {3, 4, 5, 9, 10, 11, 14, 15};
struct ne2_adapters_t {
unsigned int id;
char *name;
};
static struct ne2_adapters_t ne2_adapters[] __initdata = {
{ 0x6354, "Arco Ethernet Adapter AE/2" },
{ 0x70DE, "Compex ENET-16 MC/P" },
{ 0x7154, "Novell Ethernet Adapter NE/2" },
{ 0x56ea, "D-Link DE-320CT" },
{ 0x0000, NULL }
};
extern int netcard_probe(struct net_device *dev);
static int ne2_probe1(struct net_device *dev, int slot);
static void ne_reset_8390(struct net_device *dev);
static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
int ring_page);
static void ne_block_input(struct net_device *dev, int count,
struct sk_buff *skb, int ring_offset);
static void ne_block_output(struct net_device *dev, const int count,
const unsigned char *buf, const int start_page);
/*
* special code to read the DE-320's MAC address EEPROM. In contrast to a
* standard NE design, this is a serial EEPROM (93C46) that has to be read
* bit by bit. The EEPROM cotrol port at base + 0x1e has the following
* layout:
*
* Bit 0 = Data out (read from EEPROM)
* Bit 1 = Data in (write to EEPROM)
* Bit 2 = Clock
* Bit 3 = Chip Select
* Bit 7 = ~50 kHz clock for defined delays
*
*/
static void __init dlink_put_eeprom(unsigned char value, unsigned int addr)
{
int z;
unsigned char v1, v2;
/* write the value to the NIC EEPROM register */
outb(value, addr + 0x1e);
/* now wait the clock line to toggle twice. Effectively, we are
waiting (at least) for one clock cycle */
for (z = 0; z < 2; z++) {
do {
v1 = inb(addr + 0x1e);
v2 = inb(addr + 0x1e);
}
while (!((v1 ^ v2) & 0x80));
}
}
static void __init dlink_send_eeprom_bit(unsigned int bit, unsigned int addr)
{
/* shift data bit into correct position */
bit = bit << 1;
/* write value, keep clock line high for two cycles */
dlink_put_eeprom(0x09 | bit, addr);
dlink_put_eeprom(0x0d | bit, addr);
dlink_put_eeprom(0x0d | bit, addr);
dlink_put_eeprom(0x09 | bit, addr);
}
static void __init dlink_send_eeprom_word(unsigned int value, unsigned int len, unsigned int addr)
{
int z;
/* adjust bits so that they are left-aligned in a 16-bit-word */
value = value << (16 - len);
/* shift bits out to the EEPROM */
for (z = 0; z < len; z++) {
dlink_send_eeprom_bit((value & 0x8000) >> 15, addr);
value = value << 1;
}
}
static unsigned int __init dlink_get_eeprom(unsigned int eeaddr, unsigned int addr)
{
int z;
unsigned int value = 0;
/* pull the CS line low for a moment. This resets the EEPROM-
internal logic, and makes it ready for a new command. */
dlink_put_eeprom(0x01, addr);
dlink_put_eeprom(0x09, addr);
/* send one start bit, read command (1 - 0), plus the address to
the EEPROM */
dlink_send_eeprom_word(0x0180 | (eeaddr & 0x3f), 9, addr);
/* get the data word. We clock by sending 0s to the EEPROM, which
get ignored during the read process */
for (z = 0; z < 16; z++) {
dlink_send_eeprom_bit(0, addr);
value = (value << 1) | (inb(addr + 0x1e) & 0x01);
}
return value;
}
/*
* Note that at boot, this probe only picks up one card at a time.
*/
static int __init do_ne2_probe(struct net_device *dev)
{
static int current_mca_slot = -1;
int i;
int adapter_found = 0;
/* Do not check any supplied i/o locations.
POS registers usually don't fail :) */
/* MCA cards have POS registers.
Autodetecting MCA cards is extremely simple.
Just search for the card. */
for(i = 0; (ne2_adapters[i].name != NULL) && !adapter_found; i++) {
current_mca_slot =
mca_find_unused_adapter(ne2_adapters[i].id, 0);
if((current_mca_slot != MCA_NOTFOUND) && !adapter_found) {
int res;
mca_set_adapter_name(current_mca_slot,
ne2_adapters[i].name);
mca_mark_as_used(current_mca_slot);
res = ne2_probe1(dev, current_mca_slot);
if (res)
mca_mark_as_unused(current_mca_slot);
return res;
}
}
return -ENODEV;
}
#ifndef MODULE
struct net_device * __init ne2_probe(int unit)
{
struct net_device *dev = alloc_eip_netdev();
int err;
if (!dev)
return ERR_PTR(-ENOMEM);
sprintf(dev->name, "eth%d", unit);
netdev_boot_setup_check(dev);
err = do_ne2_probe(dev);
if (err)
goto out;
return dev;
out:
free_netdev(dev);
return ERR_PTR(err);
}
#endif
static int ne2_procinfo(char *buf, int slot, struct net_device *dev)
{
int len=0;
len += sprintf(buf+len, "The NE/2 Ethernet Adapter\n" );
len += sprintf(buf+len, "Driver written by Wim Dumon ");
len += sprintf(buf+len, "<wimpie@kotnet.org>\n");
len += sprintf(buf+len, "Modified by ");
len += sprintf(buf+len, "David Weinehall <tao@acc.umu.se>\n");
len += sprintf(buf+len, "and by Magnus Jonsson <bigfoot@acc.umu.se>\n");
len += sprintf(buf+len, "Based on the original NE2000 drivers\n" );
len += sprintf(buf+len, "Base IO: %#x\n", (unsigned int)dev->base_addr);
len += sprintf(buf+len, "IRQ : %d\n", dev->irq);
len += sprintf(buf+len, "HW addr : %pM\n", dev->dev_addr);
return len;
}
static int __init ne2_probe1(struct net_device *dev, int slot)
{
int i, base_addr, irq, retval;
unsigned char POS;
unsigned char SA_prom[32];
const char *name = "NE/2";
int start_page, stop_page;
static unsigned version_printed;
if (ei_debug && version_printed++ == 0)
printk(version);
printk("NE/2 ethercard found in slot %d:", slot);
/* Read base IO and IRQ from the POS-registers */
POS = mca_read_stored_pos(slot, 2);
if(!(POS % 2)) {
printk(" disabled.\n");
return -ENODEV;
}
/* handle different POS register structure for D-Link card */
if (mca_read_stored_pos(slot, 0) == 0xea) {
base_addr = dlink_addresses[(POS >> 5) & 0x03];
irq = dlink_irqs[(POS >> 2) & 0x07];
}
else {
i = (POS & 0xE)>>1;
/* printk("Halleluja sdog, als er na de pijl een 1 staat is 1 - 1 == 0"
" en zou het moeten werken -> %d\n", i);
The above line was for remote testing, thanx to sdog ... */
base_addr = addresses[i - 1];
irq = irqs[(POS & 0x60)>>5];
}
if (!request_region(base_addr, NE_IO_EXTENT, DRV_NAME))
return -EBUSY;
#ifdef DEBUG
printk("POS info : pos 2 = %#x ; base = %#x ; irq = %ld\n", POS,
base_addr, irq);
#endif
#ifndef CRYNWR_WAY
/* Reset the card the way they do it in the Crynwr packet driver */
for (i=0; i<8; i++)
outb(0x0, base_addr + NE_RESET);
inb(base_addr + NE_RESET);
outb(0x21, base_addr + NE_CMD);
if (inb(base_addr + NE_CMD) != 0x21) {
printk("NE/2 adapter not responding\n");
retval = -ENODEV;
goto out;
}
/* In the crynwr sources they do a RAM-test here. I skip it. I suppose
my RAM is okay. Suppose your memory is broken. Then this test
should fail and you won't be able to use your card. But if I do not
test, you won't be able to use your card, neither. So this test
won't help you. */
#else /* _I_ never tested it this way .. Go ahead and try ...*/
/* Reset card. Who knows what dain-bramaged state it was left in. */
{
unsigned long reset_start_time = jiffies;
/* DON'T change these to inb_p/outb_p or reset will fail on
clones.. */
outb(inb(base_addr + NE_RESET), base_addr + NE_RESET);
while ((inb_p(base_addr + EN0_ISR) & ENISR_RESET) == 0)
if (time_after(jiffies, reset_start_time + 2*HZ/100)) {
printk(" not found (no reset ack).\n");
retval = -ENODEV;
goto out;
}
outb_p(0xff, base_addr + EN0_ISR); /* Ack all intr. */
}
#endif
/* Read the 16 bytes of station address PROM.
We must first initialize registers, similar to
NS8390p_init(eifdev, 0).
We can't reliably read the SAPROM address without this.
(I learned the hard way!). */
{
struct {
unsigned char value, offset;
} program_seq[] = {
/* Select page 0 */
{E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD},
{0x49, EN0_DCFG}, /* Set WORD-wide (0x49) access. */
{0x00, EN0_RCNTLO}, /* Clear the count regs. */
{0x00, EN0_RCNTHI},
{0x00, EN0_IMR}, /* Mask completion irq. */
{0xFF, EN0_ISR},
{E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */
{E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */
{32, EN0_RCNTLO},
{0x00, EN0_RCNTHI},
{0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */
{0x00, EN0_RSARHI},
{E8390_RREAD+E8390_START, E8390_CMD},
};
for (i = 0; i < ARRAY_SIZE(program_seq); i++)
outb_p(program_seq[i].value, base_addr +
program_seq[i].offset);
}
for(i = 0; i < 6 /*sizeof(SA_prom)*/; i+=1) {
SA_prom[i] = inb(base_addr + NE_DATAPORT);
}
/* I don't know whether the previous sequence includes the general
board reset procedure, so better don't omit it and just overwrite
the garbage read from a DE-320 with correct stuff. */
if (mca_read_stored_pos(slot, 0) == 0xea) {
unsigned int v;
for (i = 0; i < 3; i++) {
v = dlink_get_eeprom(i, base_addr);
SA_prom[(i << 1) ] = v & 0xff;
SA_prom[(i << 1) + 1] = (v >> 8) & 0xff;
}
}
start_page = NESM_START_PG;
stop_page = NESM_STOP_PG;
dev->irq=irq;
/* Snarf the interrupt now. There's no point in waiting since we cannot
share and the board will usually be enabled. */
retval = request_irq(dev->irq, eip_interrupt, 0, DRV_NAME, dev);
if (retval) {
printk (" unable to get IRQ %d (irqval=%d).\n",
dev->irq, retval);
goto out;
}
dev->base_addr = base_addr;
for (i = 0; i < ETH_ALEN; i++)
dev->dev_addr[i] = SA_prom[i];
printk(" %pM\n", dev->dev_addr);
printk("%s: %s found at %#x, using IRQ %d.\n",
dev->name, name, base_addr, dev->irq);
mca_set_adapter_procfn(slot, (MCA_ProcFn) ne2_procinfo, dev);
ei_status.name = name;
ei_status.tx_start_page = start_page;
ei_status.stop_page = stop_page;
ei_status.word16 = (2 == 2);
ei_status.rx_start_page = start_page + TX_PAGES;
#ifdef PACKETBUF_MEMSIZE
/* Allow the packet buffer size to be overridden by know-it-alls. */
ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE;
#endif
ei_status.reset_8390 = &ne_reset_8390;
ei_status.block_input = &ne_block_input;
ei_status.block_output = &ne_block_output;
ei_status.get_8390_hdr = &ne_get_8390_hdr;
ei_status.priv = slot;
dev->netdev_ops = &eip_netdev_ops;
NS8390p_init(dev, 0);
retval = register_netdev(dev);
if (retval)
goto out1;
return 0;
out1:
mca_set_adapter_procfn( ei_status.priv, NULL, NULL);
free_irq(dev->irq, dev);
out:
release_region(base_addr, NE_IO_EXTENT);
return retval;
}
/* Hard reset the card. This used to pause for the same period that a
8390 reset command required, but that shouldn't be necessary. */
static void ne_reset_8390(struct net_device *dev)
{
unsigned long reset_start_time = jiffies;
if (ei_debug > 1)
printk("resetting the 8390 t=%ld...", jiffies);
/* DON'T change these to inb_p/outb_p or reset will fail on clones. */
outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET);
ei_status.txing = 0;
ei_status.dmaing = 0;
/* This check _should_not_ be necessary, omit eventually. */
while ((inb_p(NE_BASE+EN0_ISR) & ENISR_RESET) == 0)
if (time_after(jiffies, reset_start_time + 2*HZ/100)) {
printk("%s: ne_reset_8390() did not complete.\n",
dev->name);
break;
}
outb_p(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */
}
/* Grab the 8390 specific header. Similar to the block_input routine, but
we don't need to be concerned with ring wrap as the header will be at
the start of a page, so we optimize accordingly. */
static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
int ring_page)
{
int nic_base = dev->base_addr;
/* This *shouldn't* happen.
If it does, it's the last thing you'll see */
if (ei_status.dmaing) {
printk("%s: DMAing conflict in ne_get_8390_hdr "
"[DMAstat:%d][irqlock:%d].\n",
dev->name, ei_status.dmaing, ei_status.irqlock);
return;
}
ei_status.dmaing |= 0x01;
outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
outb_p(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO);
outb_p(0, nic_base + EN0_RCNTHI);
outb_p(0, nic_base + EN0_RSARLO); /* On page boundary */
outb_p(ring_page, nic_base + EN0_RSARHI);
outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD);
if (ei_status.word16)
insw(NE_BASE + NE_DATAPORT, hdr,
sizeof(struct e8390_pkt_hdr)>>1);
else
insb(NE_BASE + NE_DATAPORT, hdr,
sizeof(struct e8390_pkt_hdr));
outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
ei_status.dmaing &= ~0x01;
}
/* Block input and output, similar to the Crynwr packet driver. If you
are porting to a new ethercard, look at the packet driver source for
hints. The NEx000 doesn't share the on-board packet memory -- you have
to put the packet out through the "remote DMA" dataport using outb. */
static void ne_block_input(struct net_device *dev, int count, struct sk_buff *skb,
int ring_offset)
{
#ifdef NE_SANITY_CHECK
int xfer_count = count;
#endif
int nic_base = dev->base_addr;
char *buf = skb->data;
/* This *shouldn't* happen.
If it does, it's the last thing you'll see */
if (ei_status.dmaing) {
printk("%s: DMAing conflict in ne_block_input "
"[DMAstat:%d][irqlock:%d].\n",
dev->name, ei_status.dmaing, ei_status.irqlock);
return;
}
ei_status.dmaing |= 0x01;
outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
outb_p(count & 0xff, nic_base + EN0_RCNTLO);
outb_p(count >> 8, nic_base + EN0_RCNTHI);
outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO);
outb_p(ring_offset >> 8, nic_base + EN0_RSARHI);
outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD);
if (ei_status.word16) {
insw(NE_BASE + NE_DATAPORT,buf,count>>1);
if (count & 0x01) {
buf[count-1] = inb(NE_BASE + NE_DATAPORT);
#ifdef NE_SANITY_CHECK
xfer_count++;
#endif
}
} else {
insb(NE_BASE + NE_DATAPORT, buf, count);
}
#ifdef NE_SANITY_CHECK
/* This was for the ALPHA version only, but enough people have
been encountering problems so it is still here. If you see
this message you either 1) have a slightly incompatible clone
or 2) have noise/speed problems with your bus. */
if (ei_debug > 1) { /* DMA termination address check... */
int addr, tries = 20;
do {
/* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here
-- it's broken for Rx on some cards! */
int high = inb_p(nic_base + EN0_RSARHI);
int low = inb_p(nic_base + EN0_RSARLO);
addr = (high << 8) + low;
if (((ring_offset + xfer_count) & 0xff) == low)
break;
} while (--tries > 0);
if (tries <= 0)
printk("%s: RX transfer address mismatch,"
"%#4.4x (expected) vs. %#4.4x (actual).\n",
dev->name, ring_offset + xfer_count, addr);
}
#endif
outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
ei_status.dmaing &= ~0x01;
}
static void ne_block_output(struct net_device *dev, int count,
const unsigned char *buf, const int start_page)
{
int nic_base = NE_BASE;
unsigned long dma_start;
#ifdef NE_SANITY_CHECK
int retries = 0;
#endif
/* Round the count up for word writes. Do we need to do this?
What effect will an odd byte count have on the 8390?
I should check someday. */
if (ei_status.word16 && (count & 0x01))
count++;
/* This *shouldn't* happen.
If it does, it's the last thing you'll see */
if (ei_status.dmaing) {
printk("%s: DMAing conflict in ne_block_output."
"[DMAstat:%d][irqlock:%d]\n",
dev->name, ei_status.dmaing, ei_status.irqlock);
return;
}
ei_status.dmaing |= 0x01;
/* We should already be in page 0, but to be safe... */
outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD);
#ifdef NE_SANITY_CHECK
retry:
#endif
#ifdef NE8390_RW_BUGFIX
/* Handle the read-before-write bug the same way as the
Crynwr packet driver -- the NatSemi method doesn't work.
Actually this doesn't always work either, but if you have
problems with your NEx000 this is better than nothing! */
outb_p(0x42, nic_base + EN0_RCNTLO);
outb_p(0x00, nic_base + EN0_RCNTHI);
outb_p(0x42, nic_base + EN0_RSARLO);
outb_p(0x00, nic_base + EN0_RSARHI);
outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD);
/* Make certain that the dummy read has occurred. */
SLOW_DOWN_IO;
SLOW_DOWN_IO;
SLOW_DOWN_IO;
#endif
outb_p(ENISR_RDC, nic_base + EN0_ISR);
/* Now the normal output. */
outb_p(count & 0xff, nic_base + EN0_RCNTLO);
outb_p(count >> 8, nic_base + EN0_RCNTHI);
outb_p(0x00, nic_base + EN0_RSARLO);
outb_p(start_page, nic_base + EN0_RSARHI);
outb_p(E8390_RWRITE+E8390_START, nic_base + NE_CMD);
if (ei_status.word16) {
outsw(NE_BASE + NE_DATAPORT, buf, count>>1);
} else {
outsb(NE_BASE + NE_DATAPORT, buf, count);
}
dma_start = jiffies;
#ifdef NE_SANITY_CHECK
/* This was for the ALPHA version only, but enough people have
been encountering problems so it is still here. */
if (ei_debug > 1) { /* DMA termination address check... */
int addr, tries = 20;
do {
int high = inb_p(nic_base + EN0_RSARHI);
int low = inb_p(nic_base + EN0_RSARLO);
addr = (high << 8) + low;
if ((start_page << 8) + count == addr)
break;
} while (--tries > 0);
if (tries <= 0) {
printk("%s: Tx packet transfer address mismatch,"
"%#4.4x (expected) vs. %#4.4x (actual).\n",
dev->name, (start_page << 8) + count, addr);
if (retries++ == 0)
goto retry;
}
}
#endif
while ((inb_p(nic_base + EN0_ISR) & ENISR_RDC) == 0)
if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */
printk("%s: timeout waiting for Tx RDC.\n", dev->name);
ne_reset_8390(dev);
NS8390p_init(dev, 1);
break;
}
outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
ei_status.dmaing &= ~0x01;
}
#ifdef MODULE
#define MAX_NE_CARDS 4 /* Max number of NE cards per module */
static struct net_device *dev_ne[MAX_NE_CARDS];
static int io[MAX_NE_CARDS];
static int irq[MAX_NE_CARDS];
static int bad[MAX_NE_CARDS]; /* 0xbad = bad sig or no reset ack */
MODULE_LICENSE("GPL");
module_param_array(io, int, NULL, 0);
module_param_array(irq, int, NULL, 0);
module_param_array(bad, int, NULL, 0);
MODULE_PARM_DESC(io, "(ignored)");
MODULE_PARM_DESC(irq, "(ignored)");
MODULE_PARM_DESC(bad, "(ignored)");
/* Module code fixed by David Weinehall */
int __init init_module(void)
{
struct net_device *dev;
int this_dev, found = 0;
for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) {
dev = alloc_eip_netdev();
if (!dev)
break;
dev->irq = irq[this_dev];
dev->mem_end = bad[this_dev];
dev->base_addr = io[this_dev];
if (do_ne2_probe(dev) == 0) {
dev_ne[found++] = dev;
continue;
}
free_netdev(dev);
break;
}
if (found)
return 0;
printk(KERN_WARNING "ne2.c: No NE/2 card found\n");
return -ENXIO;
}
static void cleanup_card(struct net_device *dev)
{
mca_mark_as_unused(ei_status.priv);
mca_set_adapter_procfn( ei_status.priv, NULL, NULL);
free_irq(dev->irq, dev);
release_region(dev->base_addr, NE_IO_EXTENT);
}
void __exit cleanup_module(void)
{
int this_dev;
for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) {
struct net_device *dev = dev_ne[this_dev];
if (dev) {
unregister_netdev(dev);
cleanup_card(dev);
free_netdev(dev);
}
}
}
#endif /* MODULE */
drivers/net/ethernet/8390/smc-mca.c deleted 100644 → 0
View file @ bc6a4744
/* smc-mca.c: A SMC Ultra ethernet driver for linux. */
/*
Most of this driver, except for ultramca_probe is nearly
verbatim from smc-ultra.c by Donald Becker. The rest is
written and copyright 1996 by David Weis, weisd3458@uni.edu
This is a driver for the SMC Ultra and SMC EtherEZ ethercards.
This driver uses the cards in the 8390-compatible, shared memory mode.
Most of the run-time complexity is handled by the generic code in
8390.c.
This driver enables the shared memory only when doing the actual data
transfers to avoid a bug in early version of the card that corrupted
data transferred by a AHA1542.
This driver does not support the programmed-I/O data transfer mode of
the EtherEZ. That support (if available) is smc-ez.c. Nor does it
use the non-8390-compatible "Altego" mode. (No support currently planned.)
Changelog:
Paul Gortmaker : multiple card support for module users.
David Weis : Micro Channel-ized it.
Tom Sightler : Added support for IBM PS/2 Ethernet Adapter/A
Christopher Turcksin : Changed MCA-probe so that multiple adapters are
found correctly (Jul 16, 1997)
Chris Beauregard : Tried to merge the two changes above (Dec 15, 1997)
Tom Sightler : Fixed minor detection bug caused by above merge
Tom Sightler : Added support for three more Western Digital
MCA-adapters
Tom Sightler : Added support for 2.2.x mca_find_unused_adapter
Hartmut Schmidt : - Modified parameter detection to handle each
card differently depending on a switch-list
- 'card_ver' removed from the adapter list
- Some minor bug fixes
*/
#include <linux/mca.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <asm/io.h>
#include "8390.h"
#define DRV_NAME "smc-mca"
static int ultramca_open(struct net_device *dev);
static void ultramca_reset_8390(struct net_device *dev);
static void ultramca_get_8390_hdr(struct net_device *dev,
struct e8390_pkt_hdr *hdr,
int ring_page);
static void ultramca_block_input(struct net_device *dev, int count,
struct sk_buff *skb,
int ring_offset);
static void ultramca_block_output(struct net_device *dev, int count,
const unsigned char *buf,
const int start_page);
static int ultramca_close_card(struct net_device *dev);
#define START_PG 0x00 /* First page of TX buffer */
#define ULTRA_CMDREG 0 /* Offset to ASIC command register. */
#define ULTRA_RESET 0x80 /* Board reset, in ULTRA_CMDREG. */
#define ULTRA_MEMENB 0x40 /* Enable the shared memory. */
#define ULTRA_NIC_OFFSET 16 /* NIC register offset from the base_addr. */
#define ULTRA_IO_EXTENT 32
#define EN0_ERWCNT 0x08 /* Early receive warning count. */
#define _61c8_SMC_Ethercard_PLUS_Elite_A_BNC_AUI_WD8013EP_A 0
#define _61c9_SMC_Ethercard_PLUS_Elite_A_UTP_AUI_WD8013EP_A 1
#define _6fc0_WD_Ethercard_PLUS_A_WD8003E_A_OR_WD8003ET_A 2
#define _6fc1_WD_Starcard_PLUS_A_WD8003ST_A 3
#define _6fc2_WD_Ethercard_PLUS_10T_A_WD8003W_A 4
#define _efd4_IBM_PS2_Adapter_A_for_Ethernet_UTP_AUI_WD8013WP_A 5
#define _efd5_IBM_PS2_Adapter_A_for_Ethernet_BNC_AUI_WD8013WP_A 6
#define _efe5_IBM_PS2_Adapter_A_for_Ethernet 7
struct smc_mca_adapters_t {
unsigned int id;
char *name;
};
#define MAX_ULTRAMCA_CARDS 4 /* Max number of Ultra cards per module */
static int ultra_io[MAX_ULTRAMCA_CARDS];
static int ultra_irq[MAX_ULTRAMCA_CARDS];
MODULE_LICENSE("GPL");
module_param_array(ultra_io, int, NULL, 0);
module_param_array(ultra_irq, int, NULL, 0);
MODULE_PARM_DESC(ultra_io, "SMC Ultra/EtherEZ MCA I/O base address(es)");
MODULE_PARM_DESC(ultra_irq, "SMC Ultra/EtherEZ MCA IRQ number(s)");
static const struct {
unsigned int base_addr;
} addr_table[] = {
{ 0x0800 },
{ 0x1800 },
{ 0x2800 },
{ 0x3800 },
{ 0x4800 },
{ 0x5800 },
{ 0x6800 },
{ 0x7800 },
{ 0x8800 },
{ 0x9800 },
{ 0xa800 },
{ 0xb800 },
{ 0xc800 },
{ 0xd800 },
{ 0xe800 },
{ 0xf800 }
};
#define MEM_MASK 64
static const struct {
unsigned char mem_index;
unsigned long mem_start;
unsigned char num_pages;
} mem_table[] = {
{ 16, 0x0c0000, 40 },
{ 18, 0x0c4000, 40 },
{ 20, 0x0c8000, 40 },
{ 22, 0x0cc000, 40 },
{ 24, 0x0d0000, 40 },
{ 26, 0x0d4000, 40 },
{ 28, 0x0d8000, 40 },
{ 30, 0x0dc000, 40 },
{144, 0xfc0000, 40 },
{148, 0xfc8000, 40 },
{154, 0xfd0000, 40 },
{156, 0xfd8000, 40 },
{ 0, 0x0c0000, 20 },
{ 1, 0x0c2000, 20 },
{ 2, 0x0c4000, 20 },
{ 3, 0x0c6000, 20 }
};
#define IRQ_MASK 243
static const struct {
unsigned char new_irq;
unsigned char old_irq;
} irq_table[] = {
{ 3, 3 },
{ 4, 4 },
{ 10, 10 },
{ 14, 15 }
};
static short smc_mca_adapter_ids[] __initdata = {
0x61c8,
0x61c9,
0x6fc0,
0x6fc1,
0x6fc2,
0xefd4,
0xefd5,
0xefe5,
0x0000
};
static char *smc_mca_adapter_names[] __initdata = {
"SMC Ethercard PLUS Elite/A BNC/AUI (WD8013EP/A)",
"SMC Ethercard PLUS Elite/A UTP/AUI (WD8013WP/A)",
"WD Ethercard PLUS/A (WD8003E/A or WD8003ET/A)",
"WD Starcard PLUS/A (WD8003ST/A)",
"WD Ethercard PLUS 10T/A (WD8003W/A)",
"IBM PS/2 Adapter/A for Ethernet UTP/AUI (WD8013WP/A)",
"IBM PS/2 Adapter/A for Ethernet BNC/AUI (WD8013EP/A)",
"IBM PS/2 Adapter/A for Ethernet",
NULL
};
static int ultra_found = 0;
static const struct net_device_ops ultramca_netdev_ops = {
.ndo_open = ultramca_open,
.ndo_stop = ultramca_close_card,
.ndo_start_xmit = ei_start_xmit,
.ndo_tx_timeout = ei_tx_timeout,
.ndo_get_stats = ei_get_stats,
.ndo_set_rx_mode = ei_set_multicast_list,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
.ndo_change_mtu = eth_change_mtu,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = ei_poll,
#endif
};
static int __init ultramca_probe(struct device *gen_dev)
{
unsigned short ioaddr;
struct net_device *dev;
unsigned char reg4, num_pages;
struct mca_device *mca_dev = to_mca_device(gen_dev);
char slot = mca_dev->slot;
unsigned char pos2 = 0xff, pos3 = 0xff, pos4 = 0xff, pos5 = 0xff;
int i, rc;
int adapter = mca_dev->index;
int tbase = 0;
int tirq = 0;
int base_addr = ultra_io[ultra_found];
int irq = ultra_irq[ultra_found];
if (base_addr || irq) {
printk(KERN_INFO "Probing for SMC MCA adapter");
if (base_addr) {
printk(KERN_INFO " at I/O address 0x%04x%c",
base_addr, irq ? ' ' : '\n');
}
if (irq) {
printk(KERN_INFO "using irq %d\n", irq);
}
}
tirq = 0;
tbase = 0;
/* If we're trying to match a specificied irq or io address,
* we'll reject the adapter found unless it's the one we're
* looking for */
pos2 = mca_device_read_stored_pos(mca_dev, 2); /* io_addr */
pos3 = mca_device_read_stored_pos(mca_dev, 3); /* shared mem */
pos4 = mca_device_read_stored_pos(mca_dev, 4); /* ROM bios addr range */
pos5 = mca_device_read_stored_pos(mca_dev, 5); /* irq, media and RIPL */
/* Test the following conditions:
* - If an irq parameter is supplied, compare it
* with the irq of the adapter we found
* - If a base_addr paramater is given, compare it
* with the base_addr of the adapter we found
* - Check that the irq and the base_addr of the
* adapter we found is not already in use by
* this driver
*/
switch (mca_dev->index) {
case _61c8_SMC_Ethercard_PLUS_Elite_A_BNC_AUI_WD8013EP_A:
case _61c9_SMC_Ethercard_PLUS_Elite_A_UTP_AUI_WD8013EP_A:
case _efd4_IBM_PS2_Adapter_A_for_Ethernet_UTP_AUI_WD8013WP_A:
case _efd5_IBM_PS2_Adapter_A_for_Ethernet_BNC_AUI_WD8013WP_A:
{
tbase = addr_table[(pos2 & 0xf0) >> 4].base_addr;
tirq = irq_table[(pos5 & 0xc) >> 2].new_irq;
break;
}
case _6fc0_WD_Ethercard_PLUS_A_WD8003E_A_OR_WD8003ET_A:
case _6fc1_WD_Starcard_PLUS_A_WD8003ST_A:
case _6fc2_WD_Ethercard_PLUS_10T_A_WD8003W_A:
case _efe5_IBM_PS2_Adapter_A_for_Ethernet:
{
tbase = ((pos2 & 0x0fe) * 0x10);
tirq = irq_table[(pos5 & 3)].old_irq;
break;
}
}
if(!tirq || !tbase ||
(irq && irq != tirq) ||
(base_addr && tbase != base_addr))
/* FIXME: we're trying to force the ordering of the
* devices here, there should be a way of getting this
* to happen */
return -ENXIO;
/* Adapter found. */
dev = alloc_ei_netdev();
if(!dev)
return -ENODEV;
SET_NETDEV_DEV(dev, gen_dev);
mca_device_set_name(mca_dev, smc_mca_adapter_names[adapter]);
mca_device_set_claim(mca_dev, 1);
printk(KERN_INFO "smc_mca: %s found in slot %d\n",
smc_mca_adapter_names[adapter], slot + 1);
ultra_found++;
dev->base_addr = ioaddr = mca_device_transform_ioport(mca_dev, tbase);
dev->irq = mca_device_transform_irq(mca_dev, tirq);
dev->mem_start = 0;
num_pages = 40;
switch (adapter) { /* card-# in const array above [hs] */
case _61c8_SMC_Ethercard_PLUS_Elite_A_BNC_AUI_WD8013EP_A:
case _61c9_SMC_Ethercard_PLUS_Elite_A_UTP_AUI_WD8013EP_A:
{
for (i = 0; i < 16; i++) { /* taking 16 counts
* up to 15 [hs] */
if (mem_table[i].mem_index == (pos3 & ~MEM_MASK)) {
dev->mem_start = (unsigned long)
mca_device_transform_memory(mca_dev, (void *)mem_table[i].mem_start);
num_pages = mem_table[i].num_pages;
}
}
break;
}
case _6fc0_WD_Ethercard_PLUS_A_WD8003E_A_OR_WD8003ET_A:
case _6fc1_WD_Starcard_PLUS_A_WD8003ST_A:
case _6fc2_WD_Ethercard_PLUS_10T_A_WD8003W_A:
case _efe5_IBM_PS2_Adapter_A_for_Ethernet:
{
dev->mem_start = (unsigned long)
mca_device_transform_memory(mca_dev, (void *)((pos3 & 0xfc) * 0x1000));
num_pages = 0x40;
break;
}
case _efd4_IBM_PS2_Adapter_A_for_Ethernet_UTP_AUI_WD8013WP_A:
case _efd5_IBM_PS2_Adapter_A_for_Ethernet_BNC_AUI_WD8013WP_A:
{
/* courtesy of gamera@quartz.ocn.ne.jp, pos3 indicates
* the index of the 0x2000 step.
* beware different number of pages [hs]
*/
dev->mem_start = (unsigned long)
mca_device_transform_memory(mca_dev, (void *)(0xc0000 + (0x2000 * (pos3 & 0xf))));
num_pages = 0x20 + (2 * (pos3 & 0x10));
break;
}
}
/* sanity check, shouldn't happen */
if (dev->mem_start == 0) {
rc = -ENODEV;
goto err_unclaim;
}
if (!request_region(ioaddr, ULTRA_IO_EXTENT, DRV_NAME)) {
rc = -ENODEV;
goto err_unclaim;
}
reg4 = inb(ioaddr + 4) & 0x7f;
outb(reg4, ioaddr + 4);
for (i = 0; i < 6; i++)
dev->dev_addr[i] = inb(ioaddr + 8 + i);
printk(KERN_INFO "smc_mca[%d]: Parameters: %#3x, %pM",
slot + 1, ioaddr, dev->dev_addr);
/* Switch from the station address to the alternate register set
* and read the useful registers there.
*/
outb(0x80 | reg4, ioaddr + 4);
/* Enable FINE16 mode to avoid BIOS ROM width mismatches @ reboot.
*/
outb(0x80 | inb(ioaddr + 0x0c), ioaddr + 0x0c);
/* Switch back to the station address register set so that
* the MS-DOS driver can find the card after a warm boot.
*/
outb(reg4, ioaddr + 4);
dev_set_drvdata(gen_dev, dev);
/* The 8390 isn't at the base address, so fake the offset
*/
dev->base_addr = ioaddr + ULTRA_NIC_OFFSET;
ei_status.name = "SMC Ultra MCA";
ei_status.word16 = 1;
ei_status.tx_start_page = START_PG;
ei_status.rx_start_page = START_PG + TX_PAGES;
ei_status.stop_page = num_pages;
ei_status.mem = ioremap(dev->mem_start, (ei_status.stop_page - START_PG) * 256);
if (!ei_status.mem) {
rc = -ENOMEM;
goto err_release_region;
}
dev->mem_end = dev->mem_start + (ei_status.stop_page - START_PG) * 256;
printk(", IRQ %d memory %#lx-%#lx.\n",
dev->irq, dev->mem_start, dev->mem_end - 1);
ei_status.reset_8390 = &ultramca_reset_8390;
ei_status.block_input = &ultramca_block_input;
ei_status.block_output = &ultramca_block_output;
ei_status.get_8390_hdr = &ultramca_get_8390_hdr;
ei_status.priv = slot;
dev->netdev_ops = &ultramca_netdev_ops;
NS8390_init(dev, 0);
rc = register_netdev(dev);
if (rc)
goto err_unmap;
return 0;
err_unmap:
iounmap(ei_status.mem);
err_release_region:
release_region(ioaddr, ULTRA_IO_EXTENT);
err_unclaim:
mca_device_set_claim(mca_dev, 0);
free_netdev(dev);
return rc;
}
static int ultramca_open(struct net_device *dev)
{
int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
int retval;
if ((retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev)))
return retval;
outb(ULTRA_MEMENB, ioaddr); /* Enable memory */
outb(0x80, ioaddr + 5); /* ??? */
outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */
outb(0x04, ioaddr + 5); /* ??? */
/* Set the early receive warning level in window 0 high enough not
* to receive ERW interrupts.
*/
/* outb_p(E8390_NODMA + E8390_PAGE0, dev->base_addr);
* outb(0xff, dev->base_addr + EN0_ERWCNT);
*/
ei_open(dev);
return 0;
}
static void ultramca_reset_8390(struct net_device *dev)
{
int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
outb(ULTRA_RESET, ioaddr);
if (ei_debug > 1)
printk("resetting Ultra, t=%ld...", jiffies);
ei_status.txing = 0;
outb(0x80, ioaddr + 5); /* ??? */
outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */
if (ei_debug > 1)
printk("reset done\n");
}
/* Grab the 8390 specific header. Similar to the block_input routine, but
* we don't need to be concerned with ring wrap as the header will be at
* the start of a page, so we optimize accordingly.
*/
static void ultramca_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
{
void __iomem *hdr_start = ei_status.mem + ((ring_page - START_PG) << 8);
#ifdef notdef
/* Officially this is what we are doing, but the readl() is faster */
memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr));
#else
((unsigned int*)hdr)[0] = readl(hdr_start);
#endif
}
/* Block input and output are easy on shared memory ethercards, the only
* complication is when the ring buffer wraps.
*/
static void ultramca_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
{
void __iomem *xfer_start = ei_status.mem + ring_offset - START_PG * 256;
if (ring_offset + count > ei_status.stop_page * 256) {
/* We must wrap the input move. */
int semi_count = ei_status.stop_page * 256 - ring_offset;
memcpy_fromio(skb->data, xfer_start, semi_count);
count -= semi_count;
memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count);
} else {
memcpy_fromio(skb->data, xfer_start, count);
}
}
static void ultramca_block_output(struct net_device *dev, int count, const unsigned char *buf,
int start_page)
{
void __iomem *shmem = ei_status.mem + ((start_page - START_PG) << 8);
memcpy_toio(shmem, buf, count);
}
static int ultramca_close_card(struct net_device *dev)
{
int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
netif_stop_queue(dev);
if (ei_debug > 1)
printk("%s: Shutting down ethercard.\n", dev->name);
outb(0x00, ioaddr + 6); /* Disable interrupts. */
free_irq(dev->irq, dev);
NS8390_init(dev, 0);
/* We should someday disable shared memory and change to 8-bit mode
* "just in case"...
*/
return 0;
}
static int ultramca_remove(struct device *gen_dev)
{
struct mca_device *mca_dev = to_mca_device(gen_dev);
struct net_device *dev = dev_get_drvdata(gen_dev);
if (dev) {
/* NB: ultra_close_card() does free_irq */
int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET;
unregister_netdev(dev);
mca_device_set_claim(mca_dev, 0);
release_region(ioaddr, ULTRA_IO_EXTENT);
iounmap(ei_status.mem);
free_netdev(dev);
}
return 0;
}
static struct mca_driver ultra_driver = {
.id_table = smc_mca_adapter_ids,
.driver = {
.name = "smc-mca",
.bus = &mca_bus_type,
.probe = ultramca_probe,
.remove = ultramca_remove,
}
};
static int __init ultramca_init_module(void)
{
if(!MCA_bus)
return -ENXIO;
mca_register_driver(&ultra_driver);
return ultra_found ? 0 : -ENXIO;
}
static void __exit ultramca_cleanup_module(void)
{
mca_unregister_driver(&ultra_driver);
}
module_init(ultramca_init_module);
module_exit(ultramca_cleanup_module);
drivers/net/ethernet/amd/depca.c
View file @ a5e371f6
......@@ -155,23 +155,10 @@
2 depca's in a PC).
************************************************************************
Support for MCA EtherWORKS cards added 11-3-98.
Support for MCA EtherWORKS cards added 11-3-98. (MCA since deleted)
Verified to work with up to 2 DE212 cards in a system (although not
fully stress-tested).
Currently known bugs/limitations:
Note: with the MCA stuff as a module, it trusts the MCA configuration,
not the command line for IRQ and memory address. You can
specify them if you want, but it will throw your values out.
You still have to pass the IO address it was configured as
though.
************************************************************************
TO DO:
------
Revision History
----------------
......@@ -261,10 +248,6 @@
#include <asm/io.h>
#include <asm/dma.h>
#ifdef CONFIG_MCA
#include <linux/mca.h>
#endif
#ifdef CONFIG_EISA
#include <linux/eisa.h>
#endif
......@@ -360,44 +343,6 @@ static struct eisa_driver depca_eisa_driver = {
};
#endif
#ifdef CONFIG_MCA
/*
** Adapter ID for the MCA EtherWORKS DE210/212 adapter
*/
#define DE210_ID 0x628d
#define DE212_ID 0x6def
static short depca_mca_adapter_ids[] = {
DE210_ID,
DE212_ID,
0x0000
};
static char *depca_mca_adapter_name[] = {
"DEC EtherWORKS MC Adapter (DE210)",
"DEC EtherWORKS MC Adapter (DE212)",
NULL
};
static enum depca_type depca_mca_adapter_type[] = {
de210,
de212,
0
};
static int depca_mca_probe (struct device *);
static struct mca_driver depca_mca_driver = {
.id_table = depca_mca_adapter_ids,
.driver = {
.name = depca_string,
.bus = &mca_bus_type,
.probe = depca_mca_probe,
.remove = __devexit_p(depca_device_remove),
},
};
#endif
static int depca_isa_probe (struct platform_device *);
static int __devexit depca_isa_remove(struct platform_device *pdev)
......@@ -464,8 +409,7 @@ struct depca_private {
char adapter_name[DEPCA_STRLEN]; /* /proc/ioports string */
enum depca_type adapter; /* Adapter type */
enum {
DEPCA_BUS_MCA = 1,
DEPCA_BUS_ISA,
DEPCA_BUS_ISA = 1,
DEPCA_BUS_EISA,
} depca_bus; /* type of bus */
struct depca_init init_block; /* Shadow Initialization block */
......@@ -624,12 +568,6 @@ static int __init depca_hw_init (struct net_device *dev, struct device *device)
dev_name(device), depca_signature[lp->adapter], ioaddr);
switch (lp->depca_bus) {
#ifdef CONFIG_MCA
case DEPCA_BUS_MCA:
printk(" (MCA slot %d)", to_mca_device(device)->slot + 1);
break;
#endif
#ifdef CONFIG_EISA
case DEPCA_BUS_EISA:
printk(" (EISA slot %d)", to_eisa_device(device)->slot);
......@@ -661,9 +599,6 @@ static int __init depca_hw_init (struct net_device *dev, struct device *device)
if (nicsr & BUF) {
nicsr &= ~BS; /* DEPCA RAM in top 32k */
netRAM -= 32;
/* Only EISA/ISA needs start address to be re-computed */
if (lp->depca_bus != DEPCA_BUS_MCA)
mem_start += 0x8000;
}
......@@ -1325,130 +1260,6 @@ static int __init depca_common_init (u_long ioaddr, struct net_device **devp)
return status;
}
#ifdef CONFIG_MCA
/*
** Microchannel bus I/O device probe
*/
static int __init depca_mca_probe(struct device *device)
{
unsigned char pos[2];
unsigned char where;
unsigned long iobase, mem_start;
int irq, err;
struct mca_device *mdev = to_mca_device (device);
struct net_device *dev;
struct depca_private *lp;
/*
** Search for the adapter. If an address has been given, search
** specifically for the card at that address. Otherwise find the
** first card in the system.
*/
pos[0] = mca_device_read_stored_pos(mdev, 2);
pos[1] = mca_device_read_stored_pos(mdev, 3);
/*
** IO of card is handled by bits 1 and 2 of pos0.
**
** bit2 bit1 IO
** 0 0 0x2c00
** 0 1 0x2c10
** 1 0 0x2c20
** 1 1 0x2c30
*/
where = (pos[0] & 6) >> 1;
iobase = 0x2c00 + (0x10 * where);
/*
** Found the adapter we were looking for. Now start setting it up.
**
** First work on decoding the IRQ. It's stored in the lower 4 bits
** of pos1. Bits are as follows (from the ADF file):
**
** Bits
** 3 2 1 0 IRQ
** --------------------
** 0 0 1 0 5
** 0 0 0 1 9
** 0 1 0 0 10
** 1 0 0 0 11
*/
where = pos[1] & 0x0f;
switch (where) {
case 1:
irq = 9;
break;
case 2:
irq = 5;
break;
case 4:
irq = 10;
break;
case 8:
irq = 11;
break;
default:
printk("%s: mca_probe IRQ error. You should never get here (%d).\n", mdev->name, where);
return -EINVAL;
}
/*
** Shared memory address of adapter is stored in bits 3-5 of pos0.
** They are mapped as follows:
**
** Bit
** 5 4 3 Memory Addresses
** 0 0 0 C0000-CFFFF (64K)
** 1 0 0 C8000-CFFFF (32K)
** 0 0 1 D0000-DFFFF (64K)
** 1 0 1 D8000-DFFFF (32K)
** 0 1 0 E0000-EFFFF (64K)
** 1 1 0 E8000-EFFFF (32K)
*/
where = (pos[0] & 0x18) >> 3;
mem_start = 0xc0000 + (where * 0x10000);
if (pos[0] & 0x20) {
mem_start += 0x8000;
}
/* claim the slot */
strncpy(mdev->name, depca_mca_adapter_name[mdev->index],
sizeof(mdev->name));
mca_device_set_claim(mdev, 1);
/*
** Get everything allocated and initialized... (almost just
** like the ISA and EISA probes)
*/
irq = mca_device_transform_irq(mdev, irq);
iobase = mca_device_transform_ioport(mdev, iobase);
if ((err = depca_common_init (iobase, &dev)))
goto out_unclaim;
dev->irq = irq;
dev->base_addr = iobase;
lp = netdev_priv(dev);
lp->depca_bus = DEPCA_BUS_MCA;
lp->adapter = depca_mca_adapter_type[mdev->index];
lp->mem_start = mem_start;
if ((err = depca_hw_init(dev, device)))
goto out_free;
return 0;
out_free:
free_netdev (dev);
release_region (iobase, DEPCA_TOTAL_SIZE);
out_unclaim:
mca_device_set_claim(mdev, 0);
return err;
}
#endif
/*
** ISA bus I/O device probe
*/
......@@ -2059,15 +1870,10 @@ static int __init depca_module_init (void)
{
int err = 0;
#ifdef CONFIG_MCA
err = mca_register_driver(&depca_mca_driver);
if (err)
goto err;
#endif
#ifdef CONFIG_EISA
err = eisa_driver_register(&depca_eisa_driver);
if (err)
goto err_mca;
goto err_eisa;
#endif
err = platform_driver_register(&depca_isa_driver);
if (err)
......@@ -2079,11 +1885,6 @@ static int __init depca_module_init (void)
err_eisa:
#ifdef CONFIG_EISA
eisa_driver_unregister(&depca_eisa_driver);
err_mca:
#endif
#ifdef CONFIG_MCA
mca_unregister_driver(&depca_mca_driver);
err:
#endif
return err;
}
......@@ -2091,9 +1892,6 @@ static int __init depca_module_init (void)
static void __exit depca_module_exit (void)
{
int i;
#ifdef CONFIG_MCA
mca_unregister_driver (&depca_mca_driver);
#endif
#ifdef CONFIG_EISA
eisa_driver_unregister (&depca_eisa_driver);
#endif
......
drivers/net/ethernet/fujitsu/at1700.c
View file @ a5e371f6
......@@ -27,7 +27,7 @@
ATI provided their EEPROM configuration code header file.
Thanks to NIIBE Yutaka <gniibe@mri.co.jp> for bug fixes.
MCA bus (AT1720) support by Rene Schmit <rene@bss.lu>
MCA bus (AT1720) support (now deleted) by Rene Schmit <rene@bss.lu>
Bugs:
The MB86965 has a design flaw that makes all probes unreliable. Not
......@@ -38,7 +38,6 @@
#include <linux/errno.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/mca-legacy.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
......@@ -79,24 +78,6 @@ static unsigned at1700_probe_list[] __initdata = {
0x260, 0x280, 0x2a0, 0x240, 0x340, 0x320, 0x380, 0x300, 0
};
/*
* MCA
*/
#ifdef CONFIG_MCA_LEGACY
static int at1700_ioaddr_pattern[] __initdata = {
0x00, 0x04, 0x01, 0x05, 0x02, 0x06, 0x03, 0x07
};
static int at1700_mca_probe_list[] __initdata = {
0x400, 0x1400, 0x2400, 0x3400, 0x4400, 0x5400, 0x6400, 0x7400, 0
};
static int at1700_irq_pattern[] __initdata = {
0x00, 0x00, 0x00, 0x30, 0x70, 0xb0, 0x00, 0x00,
0x00, 0xf0, 0x34, 0x74, 0xb4, 0x00, 0x00, 0xf4, 0x00
};
#endif
/* use 0 for production, 1 for verification, >2 for debug */
#ifndef NET_DEBUG
#define NET_DEBUG 1
......@@ -114,7 +95,6 @@ struct net_local {
uint tx_queue_ready:1; /* Tx queue is ready to be sent. */
uint rx_started:1; /* Packets are Rxing. */
uchar tx_queue; /* Number of packet on the Tx queue. */
char mca_slot; /* -1 means ISA */
ushort tx_queue_len; /* Current length of the Tx queue. */
};
......@@ -166,21 +146,6 @@ static void set_rx_mode(struct net_device *dev);
static void net_tx_timeout (struct net_device *dev);
#ifdef CONFIG_MCA_LEGACY
struct at1720_mca_adapters_struct {
char* name;
int id;
};
/* rEnE : maybe there are others I don't know off... */
static struct at1720_mca_adapters_struct at1720_mca_adapters[] __initdata = {
{ "Allied Telesys AT1720AT", 0x6410 },
{ "Allied Telesys AT1720BT", 0x6413 },
{ "Allied Telesys AT1720T", 0x6416 },
{ NULL, 0 },
};
#endif
/* Check for a network adaptor of this type, and return '0' iff one exists.
If dev->base_addr == 0, probe all likely locations.
If dev->base_addr == 1, always return failure.
......@@ -194,11 +159,6 @@ static int irq;
static void cleanup_card(struct net_device *dev)
{
#ifdef CONFIG_MCA_LEGACY
struct net_local *lp = netdev_priv(dev);
if (lp->mca_slot >= 0)
mca_mark_as_unused(lp->mca_slot);
#endif
free_irq(dev->irq, NULL);
release_region(dev->base_addr, AT1700_IO_EXTENT);
}
......@@ -273,7 +233,7 @@ static int __init at1700_probe1(struct net_device *dev, int ioaddr)
static const char fmv_irqmap_pnp[8] = {3, 4, 5, 7, 9, 10, 11, 15};
static const char at1700_irqmap[8] = {3, 4, 5, 9, 10, 11, 14, 15};
unsigned int i, irq, is_fmv18x = 0, is_at1700 = 0;
int slot, ret = -ENODEV;
int ret = -ENODEV;
struct net_local *lp = netdev_priv(dev);
if (!request_region(ioaddr, AT1700_IO_EXTENT, DRV_NAME))
......@@ -288,64 +248,6 @@ static int __init at1700_probe1(struct net_device *dev, int ioaddr)
ioaddr, read_eeprom(ioaddr, 4), read_eeprom(ioaddr, 5),
read_eeprom(ioaddr, 6), inw(ioaddr + EEPROM_Ctrl));
#endif
#ifdef CONFIG_MCA_LEGACY
/* rEnE (rene@bss.lu): got this from 3c509 driver source , adapted for AT1720 */
/* Based on Erik Nygren's (nygren@mit.edu) 3c529 patch, heavily
modified by Chris Beauregard (cpbeaure@csclub.uwaterloo.ca)
to support standard MCA probing. */
/* redone for multi-card detection by ZP Gu (zpg@castle.net) */
/* now works as a module */
if (MCA_bus) {
int j;
int l_i;
u_char pos3, pos4;
for (j = 0; at1720_mca_adapters[j].name != NULL; j ++) {
slot = 0;
while (slot != MCA_NOTFOUND) {
slot = mca_find_unused_adapter( at1720_mca_adapters[j].id, slot );
if (slot == MCA_NOTFOUND) break;
/* if we get this far, an adapter has been detected and is
enabled */
pos3 = mca_read_stored_pos( slot, 3 );
pos4 = mca_read_stored_pos( slot, 4 );
for (l_i = 0; l_i < 8; l_i++)
if (( pos3 & 0x07) == at1700_ioaddr_pattern[l_i])
break;
ioaddr = at1700_mca_probe_list[l_i];
for (irq = 0; irq < 0x10; irq++)
if (((((pos4>>4) & 0x0f) | (pos3 & 0xf0)) & 0xff) == at1700_irq_pattern[irq])
break;
/* probing for a card at a particular IO/IRQ */
if ((dev->irq && dev->irq != irq) ||
(dev->base_addr && dev->base_addr != ioaddr)) {
slot++; /* probing next slot */
continue;
}
dev->irq = irq;
/* claim the slot */
mca_set_adapter_name( slot, at1720_mca_adapters[j].name );
mca_mark_as_used(slot);
goto found;
}
}
/* if we get here, we didn't find an MCA adapter - try ISA */
}
#endif
slot = -1;
/* We must check for the EEPROM-config boards first, else accessing
IOCONFIG0 will move the board! */
if (at1700_probe_list[inb(ioaddr + IOCONFIG1) & 0x07] == ioaddr &&
......@@ -360,10 +262,6 @@ static int __init at1700_probe1(struct net_device *dev, int ioaddr)
goto err_out;
}
#ifdef CONFIG_MCA_LEGACY
found:
#endif
/* Reset the internal state machines. */
outb(0, ioaddr + RESET);
......@@ -380,11 +278,11 @@ static int __init at1700_probe1(struct net_device *dev, int ioaddr)
break;
}
if (i == 8) {
goto err_mca;
goto err_out;
}
} else {
if (fmv18x_probe_list[inb(ioaddr + IOCONFIG) & 0x07] != ioaddr)
goto err_mca;
goto err_out;
irq = fmv_irqmap[(inb(ioaddr + IOCONFIG)>>6) & 0x03];
}
}
......@@ -464,23 +362,17 @@ static int __init at1700_probe1(struct net_device *dev, int ioaddr)
spin_lock_init(&lp->lock);
lp->jumpered = is_fmv18x;
lp->mca_slot = slot;
/* Snarf the interrupt vector now. */
ret = request_irq(irq, net_interrupt, 0, DRV_NAME, dev);
if (ret) {
printk(KERN_ERR "AT1700 at %#3x is unusable due to a "
"conflict on IRQ %d.\n",
ioaddr, irq);
goto err_mca;
goto err_out;
}
return 0;
err_mca:
#ifdef CONFIG_MCA_LEGACY
if (slot >= 0)
mca_mark_as_unused(slot);
#endif
err_out:
release_region(ioaddr, AT1700_IO_EXTENT);
return ret;
......
drivers/net/ethernet/i825xx/3c523.c deleted 100644 → 0
View file @ bc6a4744
/*
net-3-driver for the 3c523 Etherlink/MC card (i82586 Ethernet chip)
This is an extension to the Linux operating system, and is covered by the
same GNU General Public License that covers that work.
Copyright 1995, 1996 by Chris Beauregard (cpbeaure@undergrad.math.uwaterloo.ca)
This is basically Michael Hipp's ni52 driver, with a new probing
algorithm and some minor changes to the 82586 CA and reset routines.
Thanks a lot Michael for a really clean i82586 implementation! Unless
otherwise documented in ni52.c, any bugs are mine.
Contrary to the Ethernet-HOWTO, this isn't based on the 3c507 driver in
any way. The ni52 is a lot easier to modify.
sources:
ni52.c
Crynwr packet driver collection was a great reference for my first
attempt at this sucker. The 3c507 driver also helped, until I noticed
that ni52.c was a lot nicer.
EtherLink/MC: Micro Channel Ethernet Adapter Technical Reference
Manual, courtesy of 3Com CardFacts, documents the 3c523-specific
stuff. Information on CardFacts is found in the Ethernet HOWTO.
Also see <a href="http://www.3com.com/">
Microprocessor Communications Support Chips, T.J. Byers, ISBN
0-444-01224-9, has a section on the i82586. It tells you just enough
to know that you really don't want to learn how to program the chip.
The original device probe code was stolen from ps2esdi.c
Known Problems:
Since most of the code was stolen from ni52.c, you'll run across the
same bugs in the 0.62 version of ni52.c, plus maybe a few because of
the 3c523 idiosynchacies. The 3c523 has 16K of RAM though, so there
shouldn't be the overrun problem that the 8K ni52 has.
This driver is for a 16K adapter. It should work fine on the 64K
adapters, but it will only use one of the 4 banks of RAM. Modifying
this for the 64K version would require a lot of heinous bank
switching, which I'm sure not interested in doing. If you try to
implement a bank switching version, you'll basically have to remember
what bank is enabled and do a switch every time you access a memory
location that's not current. You'll also have to remap pointers on
the driver side, because it only knows about 16K of the memory.
Anyone desperate or masochistic enough to try?
It seems to be stable now when multiple transmit buffers are used. I
can't see any performance difference, but then I'm working on a 386SX.
Multicast doesn't work. It doesn't even pretend to work. Don't use
it. Don't compile your kernel with multicast support. I don't know
why.
Features:
This driver is useable as a loadable module. If you try to specify an
IRQ or a IO address (via insmod 3c523.o irq=xx io=0xyyy), it will
search the MCA slots until it finds a 3c523 with the specified
parameters.
This driver does support multiple ethernet cards when used as a module
(up to MAX_3C523_CARDS, the default being 4)
This has been tested with both BNC and TP versions, internal and
external transceivers. Haven't tested with the 64K version (that I
know of).
History:
Jan 1st, 1996
first public release
Feb 4th, 1996
update to 1.3.59, incorporated multicast diffs from ni52.c
Feb 15th, 1996
added shared irq support
Apr 1999
added support for multiple cards when used as a module
added option to disable multicast as is causes problems
Ganesh Sittampalam <ganesh.sittampalam@magdalen.oxford.ac.uk>
Stuart Adamson <stuart.adamson@compsoc.net>
Nov 2001
added support for ethtool (jgarzik)
$Header: /fsys2/home/chrisb/linux-1.3.59-MCA/drivers/net/RCS/3c523.c,v 1.1 1996/02/05 01:53:46 chrisb Exp chrisb $
*/
#define DRV_NAME "3c523"
#define DRV_VERSION "17-Nov-2001"
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/skbuff.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/mca-legacy.h>
#include <linux/ethtool.h>
#include <linux/bitops.h>
#include <linux/jiffies.h>
#include <asm/uaccess.h>
#include <asm/processor.h>
#include <asm/io.h>
#include "3c523.h"
/*************************************************************************/
#define DEBUG /* debug on */
#define SYSBUSVAL 0 /* 1 = 8 Bit, 0 = 16 bit - 3c523 only does 16 bit */
#undef ELMC_MULTICAST /* Disable multicast support as it is somewhat seriously broken at the moment */
#define make32(ptr16) (p->memtop + (short) (ptr16) )
#define make24(ptr32) ((char *) (ptr32) - p->base)
#define make16(ptr32) ((unsigned short) ((unsigned long) (ptr32) - (unsigned long) p->memtop ))
/*************************************************************************/
/*
Tables to which we can map values in the configuration registers.
*/
static int irq_table[] __initdata = {
12, 7, 3, 9
};
static int csr_table[] __initdata = {
0x300, 0x1300, 0x2300, 0x3300
};
static int shm_table[] __initdata = {
0x0c0000, 0x0c8000, 0x0d0000, 0x0d8000
};
/******************* how to calculate the buffers *****************************
* IMPORTANT NOTE: if you configure only one NUM_XMIT_BUFFS, the driver works
* --------------- in a different (more stable?) mode. Only in this mode it's
* possible to configure the driver with 'NO_NOPCOMMANDS'
sizeof(scp)=12; sizeof(scb)=16; sizeof(iscp)=8;
sizeof(scp)+sizeof(iscp)+sizeof(scb) = 36 = INIT
sizeof(rfd) = 24; sizeof(rbd) = 12;
sizeof(tbd) = 8; sizeof(transmit_cmd) = 16;
sizeof(nop_cmd) = 8;
* if you don't know the driver, better do not change this values: */
#define RECV_BUFF_SIZE 1524 /* slightly oversized */
#define XMIT_BUFF_SIZE 1524 /* slightly oversized */
#define NUM_XMIT_BUFFS 1 /* config for both, 8K and 16K shmem */
#define NUM_RECV_BUFFS_8 4 /* config for 8K shared mem */
#define NUM_RECV_BUFFS_16 9 /* config for 16K shared mem */
#if (NUM_XMIT_BUFFS == 1)
#define NO_NOPCOMMANDS /* only possible with NUM_XMIT_BUFFS=1 */
#endif
/**************************************************************************/
#define DELAY(x) { mdelay(32 * x); }
/* a much shorter delay: */
#define DELAY_16(); { udelay(16) ; }
/* wait for command with timeout: */
#define WAIT_4_SCB_CMD() { int i; \
for(i=0;i<1024;i++) { \
if(!p->scb->cmd) break; \
DELAY_16(); \
if(i == 1023) { \
pr_warning("%s:%d: scb_cmd timed out .. resetting i82586\n",\
dev->name,__LINE__); \
elmc_id_reset586(); } } }
static irqreturn_t elmc_interrupt(int irq, void *dev_id);
static int elmc_open(struct net_device *dev);
static int elmc_close(struct net_device *dev);
static netdev_tx_t elmc_send_packet(struct sk_buff *, struct net_device *);
static struct net_device_stats *elmc_get_stats(struct net_device *dev);
static void elmc_timeout(struct net_device *dev);
#ifdef ELMC_MULTICAST
static void set_multicast_list(struct net_device *dev);
#endif
static const struct ethtool_ops netdev_ethtool_ops;
/* helper-functions */
static int init586(struct net_device *dev);
static int check586(struct net_device *dev, unsigned long where, unsigned size);
static void alloc586(struct net_device *dev);
static void startrecv586(struct net_device *dev);
static void *alloc_rfa(struct net_device *dev, void *ptr);
static void elmc_rcv_int(struct net_device *dev);
static void elmc_xmt_int(struct net_device *dev);
static void elmc_rnr_int(struct net_device *dev);
struct priv {
unsigned long base;
char *memtop;
unsigned long mapped_start; /* Start of ioremap */
volatile struct rfd_struct *rfd_last, *rfd_top, *rfd_first;
volatile struct scp_struct *scp; /* volatile is important */
volatile struct iscp_struct *iscp; /* volatile is important */
volatile struct scb_struct *scb; /* volatile is important */
volatile struct tbd_struct *xmit_buffs[NUM_XMIT_BUFFS];
#if (NUM_XMIT_BUFFS == 1)
volatile struct transmit_cmd_struct *xmit_cmds[2];
volatile struct nop_cmd_struct *nop_cmds[2];
#else
volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS];
volatile struct nop_cmd_struct *nop_cmds[NUM_XMIT_BUFFS];
#endif
volatile int nop_point, num_recv_buffs;
volatile char *xmit_cbuffs[NUM_XMIT_BUFFS];
volatile int xmit_count, xmit_last;
volatile int slot;
};
#define elmc_attn586() {elmc_do_attn586(dev->base_addr,ELMC_CTRL_INTE);}
#define elmc_reset586() {elmc_do_reset586(dev->base_addr,ELMC_CTRL_INTE);}
/* with interrupts disabled - this will clear the interrupt bit in the
3c523 control register, and won't put it back. This effectively
disables interrupts on the card. */
#define elmc_id_attn586() {elmc_do_attn586(dev->base_addr,0);}
#define elmc_id_reset586() {elmc_do_reset586(dev->base_addr,0);}
/*************************************************************************/
/*
Do a Channel Attention on the 3c523. This is extremely board dependent.
*/
static void elmc_do_attn586(int ioaddr, int ints)
{
/* the 3c523 requires a minimum of 500 ns. The delays here might be
a little too large, and hence they may cut the performance of the
card slightly. If someone who knows a little more about Linux
timing would care to play with these, I'd appreciate it. */
/* this bit masking stuff is crap. I'd rather have separate
registers with strobe triggers for each of these functions. <sigh>
Ya take what ya got. */
outb(ELMC_CTRL_RST | 0x3 | ELMC_CTRL_CA | ints, ioaddr + ELMC_CTRL);
DELAY_16(); /* > 500 ns */
outb(ELMC_CTRL_RST | 0x3 | ints, ioaddr + ELMC_CTRL);
}
/*************************************************************************/
/*
Reset the 82586 on the 3c523. Also very board dependent.
*/
static void elmc_do_reset586(int ioaddr, int ints)
{
/* toggle the RST bit low then high */
outb(0x3 | ELMC_CTRL_LBK, ioaddr + ELMC_CTRL);
DELAY_16(); /* > 500 ns */
outb(ELMC_CTRL_RST | ELMC_CTRL_LBK | 0x3, ioaddr + ELMC_CTRL);
elmc_do_attn586(ioaddr, ints);
}
/**********************************************
* close device
*/
static int elmc_close(struct net_device *dev)
{
netif_stop_queue(dev);
elmc_id_reset586(); /* the hard way to stop the receiver */
free_irq(dev->irq, dev);
return 0;
}
/**********************************************
* open device
*/
static int elmc_open(struct net_device *dev)
{
int ret;
elmc_id_attn586(); /* disable interrupts */
ret = request_irq(dev->irq, elmc_interrupt, IRQF_SHARED,
dev->name, dev);
if (ret) {
pr_err("%s: couldn't get irq %d\n", dev->name, dev->irq);
elmc_id_reset586();
return ret;
}
alloc586(dev);
init586(dev);
startrecv586(dev);
netif_start_queue(dev);
return 0; /* most done by init */
}
/**********************************************
* Check to see if there's an 82586 out there.
*/
static int __init check586(struct net_device *dev, unsigned long where, unsigned size)
{
struct priv *p = netdev_priv(dev);
char *iscp_addrs[2];
int i = 0;
p->base = (unsigned long) isa_bus_to_virt((unsigned long)where) + size - 0x01000000;
p->memtop = isa_bus_to_virt((unsigned long)where) + size;
p->scp = (struct scp_struct *)(p->base + SCP_DEFAULT_ADDRESS);
memset((char *) p->scp, 0, sizeof(struct scp_struct));
p->scp->sysbus = SYSBUSVAL; /* 1 = 8Bit-Bus, 0 = 16 Bit */
iscp_addrs[0] = isa_bus_to_virt((unsigned long)where);
iscp_addrs[1] = (char *) p->scp - sizeof(struct iscp_struct);
for (i = 0; i < 2; i++) {
p->iscp = (struct iscp_struct *) iscp_addrs[i];
memset((char *) p->iscp, 0, sizeof(struct iscp_struct));
p->scp->iscp = make24(p->iscp);
p->iscp->busy = 1;
elmc_id_reset586();
/* reset586 does an implicit CA */
/* apparently, you sometimes have to kick the 82586 twice... */
elmc_id_attn586();
DELAY(1);
if (p->iscp->busy) { /* i82586 clears 'busy' after successful init */
return 0;
}
}
return 1;
}
/******************************************************************
* set iscp at the right place, called by elmc_probe and open586.
*/
static void alloc586(struct net_device *dev)
{
struct priv *p = netdev_priv(dev);
elmc_id_reset586();
DELAY(2);
p->scp = (struct scp_struct *) (p->base + SCP_DEFAULT_ADDRESS);
p->scb = (struct scb_struct *) isa_bus_to_virt(dev->mem_start);
p->iscp = (struct iscp_struct *) ((char *) p->scp - sizeof(struct iscp_struct));
memset((char *) p->iscp, 0, sizeof(struct iscp_struct));
memset((char *) p->scp, 0, sizeof(struct scp_struct));
p->scp->iscp = make24(p->iscp);
p->scp->sysbus = SYSBUSVAL;
p->iscp->scb_offset = make16(p->scb);
p->iscp->busy = 1;
elmc_id_reset586();
elmc_id_attn586();
DELAY(2);
if (p->iscp->busy)
pr_err("%s: Init-Problems (alloc).\n", dev->name);
memset((char *) p->scb, 0, sizeof(struct scb_struct));
}
/*****************************************************************/
static int elmc_getinfo(char *buf, int slot, void *d)
{
int len = 0;
struct net_device *dev = d;
if (dev == NULL)
return len;
len += sprintf(buf + len, "Revision: 0x%x\n",
inb(dev->base_addr + ELMC_REVISION) & 0xf);
len += sprintf(buf + len, "IRQ: %d\n", dev->irq);
len += sprintf(buf + len, "IO Address: %#lx-%#lx\n", dev->base_addr,
dev->base_addr + ELMC_IO_EXTENT);
len += sprintf(buf + len, "Memory: %#lx-%#lx\n", dev->mem_start,
dev->mem_end - 1);
len += sprintf(buf + len, "Transceiver: %s\n", dev->if_port ?
"External" : "Internal");
len += sprintf(buf + len, "Device: %s\n", dev->name);
len += sprintf(buf + len, "Hardware Address: %pM\n",
dev->dev_addr);
return len;
} /* elmc_getinfo() */
static const struct net_device_ops netdev_ops = {
.ndo_open = elmc_open,
.ndo_stop = elmc_close,
.ndo_get_stats = elmc_get_stats,
.ndo_start_xmit = elmc_send_packet,
.ndo_tx_timeout = elmc_timeout,
#ifdef ELMC_MULTICAST
.ndo_set_rx_mode = set_multicast_list,
#endif
.ndo_change_mtu = eth_change_mtu,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};
/*****************************************************************/
static int __init do_elmc_probe(struct net_device *dev)
{
static int slot;
int base_addr = dev->base_addr;
int irq = dev->irq;
u_char status = 0;
u_char revision = 0;
int i = 0;
unsigned int size = 0;
int retval;
struct priv *pr = netdev_priv(dev);
if (MCA_bus == 0) {
return -ENODEV;
}
/* search through the slots for the 3c523. */
slot = mca_find_adapter(ELMC_MCA_ID, 0);
while (slot != -1) {
status = mca_read_stored_pos(slot, 2);
dev->irq=irq_table[(status & ELMC_STATUS_IRQ_SELECT) >> 6];
dev->base_addr=csr_table[(status & ELMC_STATUS_CSR_SELECT) >> 1];
/*
If we're trying to match a specified irq or IO address,
we'll reject a match unless it's what we're looking for.
Also reject it if the card is already in use.
*/
if ((irq && irq != dev->irq) ||
(base_addr && base_addr != dev->base_addr)) {
slot = mca_find_adapter(ELMC_MCA_ID, slot + 1);
continue;
}
if (!request_region(dev->base_addr, ELMC_IO_EXTENT, DRV_NAME)) {
slot = mca_find_adapter(ELMC_MCA_ID, slot + 1);
continue;
}
/* found what we're looking for... */
break;
}
/* we didn't find any 3c523 in the slots we checked for */
if (slot == MCA_NOTFOUND)
return (base_addr || irq) ? -ENXIO : -ENODEV;
mca_set_adapter_name(slot, "3Com 3c523 Etherlink/MC");
mca_set_adapter_procfn(slot, (MCA_ProcFn) elmc_getinfo, dev);
/* if we get this far, adapter has been found - carry on */
pr_info("%s: 3c523 adapter found in slot %d\n", dev->name, slot + 1);
/* Now we extract configuration info from the card.
The 3c523 provides information in two of the POS registers, but
the second one is only needed if we want to tell the card what IRQ
to use. I suspect that whoever sets the thing up initially would
prefer we don't screw with those things.
Note that we read the status info when we found the card...
See 3c523.h for more details.
*/
/* revision is stored in the first 4 bits of the revision register */
revision = inb(dev->base_addr + ELMC_REVISION) & 0xf;
/* according to docs, we read the interrupt and write it back to
the IRQ select register, since the POST might not configure the IRQ
properly. */
switch (dev->irq) {
case 3:
mca_write_pos(slot, 3, 0x04);
break;
case 7:
mca_write_pos(slot, 3, 0x02);
break;
case 9:
mca_write_pos(slot, 3, 0x08);
break;
case 12:
mca_write_pos(slot, 3, 0x01);
break;
}
pr->slot = slot;
pr_info("%s: 3Com 3c523 Rev 0x%x at %#lx\n", dev->name, (int) revision,
dev->base_addr);
/* Determine if we're using the on-board transceiver (i.e. coax) or
an external one. The information is pretty much useless, but I
guess it's worth brownie points. */
dev->if_port = (status & ELMC_STATUS_DISABLE_THIN);
/* The 3c523 has a 24K chunk of memory. The first 16K is the
shared memory, while the last 8K is for the EtherStart BIOS ROM.
Which we don't care much about here. We'll just tell Linux that
we're using 16K. MCA won't permit address space conflicts caused
by not mapping the other 8K. */
dev->mem_start = shm_table[(status & ELMC_STATUS_MEMORY_SELECT) >> 3];
/* We're using MCA, so it's a given that the information about memory
size is correct. The Crynwr drivers do something like this. */
elmc_id_reset586(); /* seems like a good idea before checking it... */
size = 0x4000; /* check for 16K mem */
if (!check586(dev, dev->mem_start, size)) {
pr_err("%s: memprobe, Can't find memory at 0x%lx!\n", dev->name,
dev->mem_start);
retval = -ENODEV;
goto err_out;
}
dev->mem_end = dev->mem_start + size; /* set mem_end showed by 'ifconfig' */
pr->memtop = isa_bus_to_virt(dev->mem_start) + size;
pr->base = (unsigned long) isa_bus_to_virt(dev->mem_start) + size - 0x01000000;
alloc586(dev);
elmc_id_reset586(); /* make sure it doesn't generate spurious ints */
/* set number of receive-buffs according to memsize */
pr->num_recv_buffs = NUM_RECV_BUFFS_16;
/* dump all the assorted information */
pr_info("%s: IRQ %d, %sternal xcvr, memory %#lx-%#lx.\n", dev->name,
dev->irq, dev->if_port ? "ex" : "in",
dev->mem_start, dev->mem_end - 1);
/* The hardware address for the 3c523 is stored in the first six
bytes of the IO address. */
for (i = 0; i < 6; i++)
dev->dev_addr[i] = inb(dev->base_addr + i);
pr_info("%s: hardware address %pM\n",
dev->name, dev->dev_addr);
dev->netdev_ops = &netdev_ops;
dev->watchdog_timeo = HZ;
dev->ethtool_ops = &netdev_ethtool_ops;
/* note that we haven't actually requested the IRQ from the kernel.
That gets done in elmc_open(). I'm not sure that's such a good idea,
but it works, so I'll go with it. */
#ifndef ELMC_MULTICAST
dev->flags&=~IFF_MULTICAST; /* Multicast doesn't work */
#endif
retval = register_netdev(dev);
if (retval)
goto err_out;
return 0;
err_out:
mca_set_adapter_procfn(slot, NULL, NULL);
release_region(dev->base_addr, ELMC_IO_EXTENT);
return retval;
}
#ifdef MODULE
static void cleanup_card(struct net_device *dev)
{
mca_set_adapter_procfn(((struct priv *)netdev_priv(dev))->slot,
NULL, NULL);
release_region(dev->base_addr, ELMC_IO_EXTENT);
}
#else
struct net_device * __init elmc_probe(int unit)
{
struct net_device *dev = alloc_etherdev(sizeof(struct priv));
int err;
if (!dev)
return ERR_PTR(-ENOMEM);
sprintf(dev->name, "eth%d", unit);
netdev_boot_setup_check(dev);
err = do_elmc_probe(dev);
if (err)
goto out;
return dev;
out:
free_netdev(dev);
return ERR_PTR(err);
}
#endif
/**********************************************
* init the chip (elmc-interrupt should be disabled?!)
* needs a correct 'allocated' memory
*/
static int init586(struct net_device *dev)
{
void *ptr;
unsigned long s;
int i, result = 0;
struct priv *p = netdev_priv(dev);
volatile struct configure_cmd_struct *cfg_cmd;
volatile struct iasetup_cmd_struct *ias_cmd;
volatile struct tdr_cmd_struct *tdr_cmd;
volatile struct mcsetup_cmd_struct *mc_cmd;
struct netdev_hw_addr *ha;
int num_addrs = netdev_mc_count(dev);
ptr = (void *) ((char *) p->scb + sizeof(struct scb_struct));
cfg_cmd = (struct configure_cmd_struct *) ptr; /* configure-command */
cfg_cmd->cmd_status = 0;
cfg_cmd->cmd_cmd = CMD_CONFIGURE | CMD_LAST;
cfg_cmd->cmd_link = 0xffff;
cfg_cmd->byte_cnt = 0x0a; /* number of cfg bytes */
cfg_cmd->fifo = 0x08; /* fifo-limit (8=tx:32/rx:64) */
cfg_cmd->sav_bf = 0x40; /* hold or discard bad recv frames (bit 7) */
cfg_cmd->adr_len = 0x2e; /* addr_len |!src_insert |pre-len |loopback */
cfg_cmd->priority = 0x00;
cfg_cmd->ifs = 0x60;
cfg_cmd->time_low = 0x00;
cfg_cmd->time_high = 0xf2;
cfg_cmd->promisc = 0;
if (dev->flags & (IFF_ALLMULTI | IFF_PROMISC))
cfg_cmd->promisc = 1;
cfg_cmd->carr_coll = 0x00;
p->scb->cbl_offset = make16(cfg_cmd);
p->scb->cmd = CUC_START; /* cmd.-unit start */
elmc_id_attn586();
s = jiffies; /* warning: only active with interrupts on !! */
while (!(cfg_cmd->cmd_status & STAT_COMPL)) {
if (time_after(jiffies, s + 30*HZ/100))
break;
}
if ((cfg_cmd->cmd_status & (STAT_OK | STAT_COMPL)) != (STAT_COMPL | STAT_OK)) {
pr_warning("%s (elmc): configure command failed: %x\n", dev->name, cfg_cmd->cmd_status);
return 1;
}
/*
* individual address setup
*/
ias_cmd = (struct iasetup_cmd_struct *) ptr;
ias_cmd->cmd_status = 0;
ias_cmd->cmd_cmd = CMD_IASETUP | CMD_LAST;
ias_cmd->cmd_link = 0xffff;
memcpy((char *) &ias_cmd->iaddr, (char *) dev->dev_addr, ETH_ALEN);
p->scb->cbl_offset = make16(ias_cmd);
p->scb->cmd = CUC_START; /* cmd.-unit start */
elmc_id_attn586();
s = jiffies;
while (!(ias_cmd->cmd_status & STAT_COMPL)) {
if (time_after(jiffies, s + 30*HZ/100))
break;
}
if ((ias_cmd->cmd_status & (STAT_OK | STAT_COMPL)) != (STAT_OK | STAT_COMPL)) {
pr_warning("%s (elmc): individual address setup command failed: %04x\n",
dev->name, ias_cmd->cmd_status);
return 1;
}
/*
* TDR, wire check .. e.g. no resistor e.t.c
*/
tdr_cmd = (struct tdr_cmd_struct *) ptr;
tdr_cmd->cmd_status = 0;
tdr_cmd->cmd_cmd = CMD_TDR | CMD_LAST;
tdr_cmd->cmd_link = 0xffff;
tdr_cmd->status = 0;
p->scb->cbl_offset = make16(tdr_cmd);
p->scb->cmd = CUC_START; /* cmd.-unit start */
elmc_attn586();
s = jiffies;
while (!(tdr_cmd->cmd_status & STAT_COMPL)) {
if (time_after(jiffies, s + 30*HZ/100)) {
pr_warning("%s: %d Problems while running the TDR.\n", dev->name, __LINE__);
result = 1;
break;
}
}
if (!result) {
DELAY(2); /* wait for result */
result = tdr_cmd->status;
p->scb->cmd = p->scb->status & STAT_MASK;
elmc_id_attn586(); /* ack the interrupts */
if (result & TDR_LNK_OK) {
/* empty */
} else if (result & TDR_XCVR_PRB) {
pr_warning("%s: TDR: Transceiver problem!\n", dev->name);
} else if (result & TDR_ET_OPN) {
pr_warning("%s: TDR: No correct termination %d clocks away.\n", dev->name, result & TDR_TIMEMASK);
} else if (result & TDR_ET_SRT) {
if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */
pr_warning("%s: TDR: Detected a short circuit %d clocks away.\n", dev->name, result & TDR_TIMEMASK);
} else {
pr_warning("%s: TDR: Unknown status %04x\n", dev->name, result);
}
}
/*
* ack interrupts
*/
p->scb->cmd = p->scb->status & STAT_MASK;
elmc_id_attn586();
/*
* alloc nop/xmit-cmds
*/
#if (NUM_XMIT_BUFFS == 1)
for (i = 0; i < 2; i++) {
p->nop_cmds[i] = (struct nop_cmd_struct *) ptr;
p->nop_cmds[i]->cmd_cmd = CMD_NOP;
p->nop_cmds[i]->cmd_status = 0;
p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i]));
ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
}
p->xmit_cmds[0] = (struct transmit_cmd_struct *) ptr; /* transmit cmd/buff 0 */
ptr = (char *) ptr + sizeof(struct transmit_cmd_struct);
#else
for (i = 0; i < NUM_XMIT_BUFFS; i++) {
p->nop_cmds[i] = (struct nop_cmd_struct *) ptr;
p->nop_cmds[i]->cmd_cmd = CMD_NOP;
p->nop_cmds[i]->cmd_status = 0;
p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i]));
ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
p->xmit_cmds[i] = (struct transmit_cmd_struct *) ptr; /*transmit cmd/buff 0 */
ptr = (char *) ptr + sizeof(struct transmit_cmd_struct);
}
#endif
ptr = alloc_rfa(dev, (void *) ptr); /* init receive-frame-area */
/*
* Multicast setup
*/
if (num_addrs) {
/* I don't understand this: do we really need memory after the init? */
int len = ((char *) p->iscp - (char *) ptr - 8) / 6;
if (len <= 0) {
pr_err("%s: Ooooops, no memory for MC-Setup!\n", dev->name);
} else {
if (len < num_addrs) {
num_addrs = len;
pr_warning("%s: Sorry, can only apply %d MC-Address(es).\n",
dev->name, num_addrs);
}
mc_cmd = (struct mcsetup_cmd_struct *) ptr;
mc_cmd->cmd_status = 0;
mc_cmd->cmd_cmd = CMD_MCSETUP | CMD_LAST;
mc_cmd->cmd_link = 0xffff;
mc_cmd->mc_cnt = num_addrs * 6;
i = 0;
netdev_for_each_mc_addr(ha, dev)
memcpy((char *) mc_cmd->mc_list[i++],
ha->addr, 6);
p->scb->cbl_offset = make16(mc_cmd);
p->scb->cmd = CUC_START;
elmc_id_attn586();
s = jiffies;
while (!(mc_cmd->cmd_status & STAT_COMPL)) {
if (time_after(jiffies, s + 30*HZ/100))
break;
}
if (!(mc_cmd->cmd_status & STAT_COMPL)) {
pr_warning("%s: Can't apply multicast-address-list.\n", dev->name);
}
}
}
/*
* alloc xmit-buffs / init xmit_cmds
*/
for (i = 0; i < NUM_XMIT_BUFFS; i++) {
p->xmit_cbuffs[i] = (char *) ptr; /* char-buffs */
ptr = (char *) ptr + XMIT_BUFF_SIZE;
p->xmit_buffs[i] = (struct tbd_struct *) ptr; /* TBD */
ptr = (char *) ptr + sizeof(struct tbd_struct);
if ((void *) ptr > (void *) p->iscp) {
pr_err("%s: not enough shared-mem for your configuration!\n", dev->name);
return 1;
}
memset((char *) (p->xmit_cmds[i]), 0, sizeof(struct transmit_cmd_struct));
memset((char *) (p->xmit_buffs[i]), 0, sizeof(struct tbd_struct));
p->xmit_cmds[i]->cmd_status = STAT_COMPL;
p->xmit_cmds[i]->cmd_cmd = CMD_XMIT | CMD_INT;
p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i]));
p->xmit_buffs[i]->next = 0xffff;
p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i]));
}
p->xmit_count = 0;
p->xmit_last = 0;
#ifndef NO_NOPCOMMANDS
p->nop_point = 0;
#endif
/*
* 'start transmitter' (nop-loop)
*/
#ifndef NO_NOPCOMMANDS
p->scb->cbl_offset = make16(p->nop_cmds[0]);
p->scb->cmd = CUC_START;
elmc_id_attn586();
WAIT_4_SCB_CMD();
#else
p->xmit_cmds[0]->cmd_link = 0xffff;
p->xmit_cmds[0]->cmd_cmd = CMD_XMIT | CMD_LAST | CMD_INT;
#endif
return 0;
}
/******************************************************
* This is a helper routine for elmc_rnr_int() and init586().
* It sets up the Receive Frame Area (RFA).
*/
static void *alloc_rfa(struct net_device *dev, void *ptr)
{
volatile struct rfd_struct *rfd = (struct rfd_struct *) ptr;
volatile struct rbd_struct *rbd;
int i;
struct priv *p = netdev_priv(dev);
memset((char *) rfd, 0, sizeof(struct rfd_struct) * p->num_recv_buffs);
p->rfd_first = rfd;
for (i = 0; i < p->num_recv_buffs; i++) {
rfd[i].next = make16(rfd + (i + 1) % p->num_recv_buffs);
}
rfd[p->num_recv_buffs - 1].last = RFD_SUSP; /* RU suspend */
ptr = (void *) (rfd + p->num_recv_buffs);
rbd = (struct rbd_struct *) ptr;
ptr = (void *) (rbd + p->num_recv_buffs);
/* clr descriptors */
memset((char *) rbd, 0, sizeof(struct rbd_struct) * p->num_recv_buffs);
for (i = 0; i < p->num_recv_buffs; i++) {
rbd[i].next = make16((rbd + (i + 1) % p->num_recv_buffs));
rbd[i].size = RECV_BUFF_SIZE;
rbd[i].buffer = make24(ptr);
ptr = (char *) ptr + RECV_BUFF_SIZE;
}
p->rfd_top = p->rfd_first;
p->rfd_last = p->rfd_first + p->num_recv_buffs - 1;
p->scb->rfa_offset = make16(p->rfd_first);
p->rfd_first->rbd_offset = make16(rbd);
return ptr;
}
/**************************************************
* Interrupt Handler ...
*/
static irqreturn_t
elmc_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
unsigned short stat;
struct priv *p;
if (!netif_running(dev)) {
/* The 3c523 has this habit of generating interrupts during the
reset. I'm not sure if the ni52 has this same problem, but it's
really annoying if we haven't finished initializing it. I was
hoping all the elmc_id_* commands would disable this, but I
might have missed a few. */
elmc_id_attn586(); /* ack inter. and disable any more */
return IRQ_HANDLED;
} else if (!(ELMC_CTRL_INT & inb(dev->base_addr + ELMC_CTRL))) {
/* wasn't this device */
return IRQ_NONE;
}
/* reading ELMC_CTRL also clears the INT bit. */
p = netdev_priv(dev);
while ((stat = p->scb->status & STAT_MASK))
{
p->scb->cmd = stat;
elmc_attn586(); /* ack inter. */
if (stat & STAT_CX) {
/* command with I-bit set complete */
elmc_xmt_int(dev);
}
if (stat & STAT_FR) {
/* received a frame */
elmc_rcv_int(dev);
}
#ifndef NO_NOPCOMMANDS
if (stat & STAT_CNA) {
/* CU went 'not ready' */
if (netif_running(dev)) {
pr_warning("%s: oops! CU has left active state. stat: %04x/%04x.\n",
dev->name, (int) stat, (int) p->scb->status);
}
}
#endif
if (stat & STAT_RNR) {
/* RU went 'not ready' */
if (p->scb->status & RU_SUSPEND) {
/* special case: RU_SUSPEND */
WAIT_4_SCB_CMD();
p->scb->cmd = RUC_RESUME;
elmc_attn586();
} else {
pr_warning("%s: Receiver-Unit went 'NOT READY': %04x/%04x.\n",
dev->name, (int) stat, (int) p->scb->status);
elmc_rnr_int(dev);
}
}
WAIT_4_SCB_CMD(); /* wait for ack. (elmc_xmt_int can be faster than ack!!) */
if (p->scb->cmd) { /* timed out? */
break;
}
}
return IRQ_HANDLED;
}
/*******************************************************
* receive-interrupt
*/
static void elmc_rcv_int(struct net_device *dev)
{
int status;
unsigned short totlen;
struct sk_buff *skb;
struct rbd_struct *rbd;
struct priv *p = netdev_priv(dev);
for (; (status = p->rfd_top->status) & STAT_COMPL;) {
rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset);
if (status & STAT_OK) { /* frame received without error? */
if ((totlen = rbd->status) & RBD_LAST) { /* the first and the last buffer? */
totlen &= RBD_MASK; /* length of this frame */
rbd->status = 0;
skb = netdev_alloc_skb(dev, totlen + 2);
if (skb != NULL) {
skb_reserve(skb, 2); /* 16 byte alignment */
skb_put(skb,totlen);
skb_copy_to_linear_data(skb, (char *) p->base+(unsigned long) rbd->buffer,totlen);
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
dev->stats.rx_packets++;
dev->stats.rx_bytes += totlen;
} else {
dev->stats.rx_dropped++;
}
} else {
pr_warning("%s: received oversized frame.\n", dev->name);
dev->stats.rx_dropped++;
}
} else { /* frame !(ok), only with 'save-bad-frames' */
pr_warning("%s: oops! rfd-error-status: %04x\n", dev->name, status);
dev->stats.rx_errors++;
}
p->rfd_top->status = 0;
p->rfd_top->last = RFD_SUSP;
p->rfd_last->last = 0; /* delete RU_SUSP */
p->rfd_last = p->rfd_top;
p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next); /* step to next RFD */
}
}
/**********************************************************
* handle 'Receiver went not ready'.
*/
static void elmc_rnr_int(struct net_device *dev)
{
struct priv *p = netdev_priv(dev);
dev->stats.rx_errors++;
WAIT_4_SCB_CMD(); /* wait for the last cmd */
p->scb->cmd = RUC_ABORT; /* usually the RU is in the 'no resource'-state .. abort it now. */
elmc_attn586();
WAIT_4_SCB_CMD(); /* wait for accept cmd. */
alloc_rfa(dev, (char *) p->rfd_first);
startrecv586(dev); /* restart RU */
pr_warning("%s: Receive-Unit restarted. Status: %04x\n", dev->name, p->scb->status);
}
/**********************************************************
* handle xmit - interrupt
*/
static void elmc_xmt_int(struct net_device *dev)
{
int status;
struct priv *p = netdev_priv(dev);
status = p->xmit_cmds[p->xmit_last]->cmd_status;
if (!(status & STAT_COMPL)) {
pr_warning("%s: strange .. xmit-int without a 'COMPLETE'\n", dev->name);
}
if (status & STAT_OK) {
dev->stats.tx_packets++;
dev->stats.collisions += (status & TCMD_MAXCOLLMASK);
} else {
dev->stats.tx_errors++;
if (status & TCMD_LATECOLL) {
pr_warning("%s: late collision detected.\n", dev->name);
dev->stats.collisions++;
} else if (status & TCMD_NOCARRIER) {
dev->stats.tx_carrier_errors++;
pr_warning("%s: no carrier detected.\n", dev->name);
} else if (status & TCMD_LOSTCTS) {
pr_warning("%s: loss of CTS detected.\n", dev->name);
} else if (status & TCMD_UNDERRUN) {
dev->stats.tx_fifo_errors++;
pr_warning("%s: DMA underrun detected.\n", dev->name);
} else if (status & TCMD_MAXCOLL) {
pr_warning("%s: Max. collisions exceeded.\n", dev->name);
dev->stats.collisions += 16;
}
}
#if (NUM_XMIT_BUFFS != 1)
if ((++p->xmit_last) == NUM_XMIT_BUFFS) {
p->xmit_last = 0;
}
#endif
netif_wake_queue(dev);
}
/***********************************************************
* (re)start the receiver
*/
static void startrecv586(struct net_device *dev)
{
struct priv *p = netdev_priv(dev);
p->scb->rfa_offset = make16(p->rfd_first);
p->scb->cmd = RUC_START;
elmc_attn586(); /* start cmd. */
WAIT_4_SCB_CMD(); /* wait for accept cmd. (no timeout!!) */
}
/******************************************************
* timeout
*/
static void elmc_timeout(struct net_device *dev)
{
struct priv *p = netdev_priv(dev);
/* COMMAND-UNIT active? */
if (p->scb->status & CU_ACTIVE) {
pr_debug("%s: strange ... timeout with CU active?!?\n", dev->name);
pr_debug("%s: X0: %04x N0: %04x N1: %04x %d\n", dev->name,
(int)p->xmit_cmds[0]->cmd_status,
(int)p->nop_cmds[0]->cmd_status,
(int)p->nop_cmds[1]->cmd_status, (int)p->nop_point);
p->scb->cmd = CUC_ABORT;
elmc_attn586();
WAIT_4_SCB_CMD();
p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]);
p->scb->cmd = CUC_START;
elmc_attn586();
WAIT_4_SCB_CMD();
netif_wake_queue(dev);
} else {
pr_debug("%s: xmitter timed out, try to restart! stat: %04x\n",
dev->name, p->scb->status);
pr_debug("%s: command-stats: %04x %04x\n", dev->name,
p->xmit_cmds[0]->cmd_status, p->xmit_cmds[1]->cmd_status);
elmc_close(dev);
elmc_open(dev);
}
}
/******************************************************
* send frame
*/
static netdev_tx_t elmc_send_packet(struct sk_buff *skb, struct net_device *dev)
{
int len;
int i;
#ifndef NO_NOPCOMMANDS
int next_nop;
#endif
struct priv *p = netdev_priv(dev);
netif_stop_queue(dev);
len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN;
if (len != skb->len)
memset((char *) p->xmit_cbuffs[p->xmit_count], 0, ETH_ZLEN);
skb_copy_from_linear_data(skb, (char *) p->xmit_cbuffs[p->xmit_count], skb->len);
#if (NUM_XMIT_BUFFS == 1)
#ifdef NO_NOPCOMMANDS
p->xmit_buffs[0]->size = TBD_LAST | len;
for (i = 0; i < 16; i++) {
p->scb->cbl_offset = make16(p->xmit_cmds[0]);
p->scb->cmd = CUC_START;
p->xmit_cmds[0]->cmd_status = 0;
elmc_attn586();
if (!i) {
dev_kfree_skb(skb);
}
WAIT_4_SCB_CMD();
if ((p->scb->status & CU_ACTIVE)) { /* test it, because CU sometimes doesn't start immediately */
break;
}
if (p->xmit_cmds[0]->cmd_status) {
break;
}
if (i == 15) {
pr_warning("%s: Can't start transmit-command.\n", dev->name);
}
}
#else
next_nop = (p->nop_point + 1) & 0x1;
p->xmit_buffs[0]->size = TBD_LAST | len;
p->xmit_cmds[0]->cmd_link = p->nop_cmds[next_nop]->cmd_link
= make16((p->nop_cmds[next_nop]));
p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0;
p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0]));
p->nop_point = next_nop;
dev_kfree_skb(skb);
#endif
#else
p->xmit_buffs[p->xmit_count]->size = TBD_LAST | len;
if ((next_nop = p->xmit_count + 1) == NUM_XMIT_BUFFS) {
next_nop = 0;
}
p->xmit_cmds[p->xmit_count]->cmd_status = 0;
p->xmit_cmds[p->xmit_count]->cmd_link = p->nop_cmds[next_nop]->cmd_link
= make16((p->nop_cmds[next_nop]));
p->nop_cmds[next_nop]->cmd_status = 0;
p->nop_cmds[p->xmit_count]->cmd_link = make16((p->xmit_cmds[p->xmit_count]));
p->xmit_count = next_nop;
if (p->xmit_count != p->xmit_last)
netif_wake_queue(dev);
dev_kfree_skb(skb);
#endif
return NETDEV_TX_OK;
}
/*******************************************
* Someone wanna have the statistics
*/
static struct net_device_stats *elmc_get_stats(struct net_device *dev)
{
struct priv *p = netdev_priv(dev);
unsigned short crc, aln, rsc, ovrn;
crc = p->scb->crc_errs; /* get error-statistic from the ni82586 */
p->scb->crc_errs -= crc;
aln = p->scb->aln_errs;
p->scb->aln_errs -= aln;
rsc = p->scb->rsc_errs;
p->scb->rsc_errs -= rsc;
ovrn = p->scb->ovrn_errs;
p->scb->ovrn_errs -= ovrn;
dev->stats.rx_crc_errors += crc;
dev->stats.rx_fifo_errors += ovrn;
dev->stats.rx_frame_errors += aln;
dev->stats.rx_dropped += rsc;
return &dev->stats;
}
/********************************************************
* Set MC list ..
*/
#ifdef ELMC_MULTICAST
static void set_multicast_list(struct net_device *dev)
{
if (!dev->start) {
/* without a running interface, promiscuous doesn't work */
return;
}
dev->start = 0;
alloc586(dev);
init586(dev);
startrecv586(dev);
dev->start = 1;
}
#endif
static void netdev_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
strcpy(info->driver, DRV_NAME);
strcpy(info->version, DRV_VERSION);
sprintf(info->bus_info, "MCA 0x%lx", dev->base_addr);
}
static const struct ethtool_ops netdev_ethtool_ops = {
.get_drvinfo = netdev_get_drvinfo,
};
#ifdef MODULE
/* Increase if needed ;) */
#define MAX_3C523_CARDS 4
static struct net_device *dev_elmc[MAX_3C523_CARDS];
static int irq[MAX_3C523_CARDS];
static int io[MAX_3C523_CARDS];
module_param_array(irq, int, NULL, 0);
module_param_array(io, int, NULL, 0);
MODULE_PARM_DESC(io, "EtherLink/MC I/O base address(es)");
MODULE_PARM_DESC(irq, "EtherLink/MC IRQ number(s)");
MODULE_LICENSE("GPL");
int __init init_module(void)
{
int this_dev,found = 0;
/* Loop until we either can't find any more cards, or we have MAX_3C523_CARDS */
for(this_dev=0; this_dev<MAX_3C523_CARDS; this_dev++) {
struct net_device *dev = alloc_etherdev(sizeof(struct priv));
if (!dev)
break;
dev->irq=irq[this_dev];
dev->base_addr=io[this_dev];
if (do_elmc_probe(dev) == 0) {
dev_elmc[this_dev] = dev;
found++;
continue;
}
free_netdev(dev);
if (io[this_dev]==0)
break;
pr_warning("3c523.c: No 3c523 card found at io=%#x\n",io[this_dev]);
}
if(found==0) {
if (io[0]==0)
pr_notice("3c523.c: No 3c523 cards found\n");
return -ENXIO;
} else return 0;
}
void __exit cleanup_module(void)
{
int this_dev;
for (this_dev=0; this_dev<MAX_3C523_CARDS; this_dev++) {
struct net_device *dev = dev_elmc[this_dev];
if (dev) {
unregister_netdev(dev);
cleanup_card(dev);
free_netdev(dev);
}
}
}
#endif /* MODULE */
drivers/net/ethernet/i825xx/3c523.h deleted 100644 → 0
View file @ bc6a4744
#ifndef _3c523_INCLUDE_
#define _3c523_INCLUDE_
/*
This is basically a hacked version of ni52.h, for the 3c523
Etherlink/MC.
*/
/*
* Intel i82586 Ethernet definitions
*
* This is an extension to the Linux operating system, and is covered by the
* same GNU General Public License that covers that work.
*
* Copyright 1995 by Chris Beauregard (cpbeaure@undergrad.math.uwaterloo.ca)
*
* See 3c523.c for details.
*
* $Header: /home/chrisb/linux-1.2.13-3c523/drivers/net/RCS/3c523.h,v 1.6 1996/01/20 05:09:00 chrisb Exp chrisb $
*/
/*
* where to find the System Configuration Pointer (SCP)
*/
#define SCP_DEFAULT_ADDRESS 0xfffff4
/*
* System Configuration Pointer Struct
*/
struct scp_struct
{
unsigned short zero_dum0; /* has to be zero */
unsigned char sysbus; /* 0=16Bit,1=8Bit */
unsigned char zero_dum1; /* has to be zero for 586 */
unsigned short zero_dum2;
unsigned short zero_dum3;
char *iscp; /* pointer to the iscp-block */
};
/*
* Intermediate System Configuration Pointer (ISCP)
*/
struct iscp_struct
{
unsigned char busy; /* 586 clears after successful init */
unsigned char zero_dummy; /* hast to be zero */
unsigned short scb_offset; /* pointeroffset to the scb_base */
char *scb_base; /* base-address of all 16-bit offsets */
};
/*
* System Control Block (SCB)
*/
struct scb_struct
{
unsigned short status; /* status word */
unsigned short cmd; /* command word */
unsigned short cbl_offset; /* pointeroffset, command block list */
unsigned short rfa_offset; /* pointeroffset, receive frame area */
unsigned short crc_errs; /* CRC-Error counter */
unsigned short aln_errs; /* alignmenterror counter */
unsigned short rsc_errs; /* Resourceerror counter */
unsigned short ovrn_errs; /* OVerrunerror counter */
};
/*
* possible command values for the command word
*/
#define RUC_MASK 0x0070 /* mask for RU commands */
#define RUC_NOP 0x0000 /* NOP-command */
#define RUC_START 0x0010 /* start RU */
#define RUC_RESUME 0x0020 /* resume RU after suspend */
#define RUC_SUSPEND 0x0030 /* suspend RU */
#define RUC_ABORT 0x0040 /* abort receiver operation immediately */
#define CUC_MASK 0x0700 /* mask for CU command */
#define CUC_NOP 0x0000 /* NOP-command */
#define CUC_START 0x0100 /* start execution of 1. cmd on the CBL */
#define CUC_RESUME 0x0200 /* resume after suspend */
#define CUC_SUSPEND 0x0300 /* Suspend CU */
#define CUC_ABORT 0x0400 /* abort command operation immediately */
#define ACK_MASK 0xf000 /* mask for ACK command */
#define ACK_CX 0x8000 /* acknowledges STAT_CX */
#define ACK_FR 0x4000 /* ack. STAT_FR */
#define ACK_CNA 0x2000 /* ack. STAT_CNA */
#define ACK_RNR 0x1000 /* ack. STAT_RNR */
/*
* possible status values for the status word
*/
#define STAT_MASK 0xf000 /* mask for cause of interrupt */
#define STAT_CX 0x8000 /* CU finished cmd with its I bit set */
#define STAT_FR 0x4000 /* RU finished receiving a frame */
#define STAT_CNA 0x2000 /* CU left active state */
#define STAT_RNR 0x1000 /* RU left ready state */
#define CU_STATUS 0x700 /* CU status, 0=idle */
#define CU_SUSPEND 0x100 /* CU is suspended */
#define CU_ACTIVE 0x200 /* CU is active */
#define RU_STATUS 0x70 /* RU status, 0=idle */
#define RU_SUSPEND 0x10 /* RU suspended */
#define RU_NOSPACE 0x20 /* RU no resources */
#define RU_READY 0x40 /* RU is ready */
/*
* Receive Frame Descriptor (RFD)
*/
struct rfd_struct
{
unsigned short status; /* status word */
unsigned short last; /* Bit15,Last Frame on List / Bit14,suspend */
unsigned short next; /* linkoffset to next RFD */
unsigned short rbd_offset; /* pointeroffset to RBD-buffer */
unsigned char dest[6]; /* ethernet-address, destination */
unsigned char source[6]; /* ethernet-address, source */
unsigned short length; /* 802.3 frame-length */
unsigned short zero_dummy; /* dummy */
};
#define RFD_LAST 0x8000 /* last: last rfd in the list */
#define RFD_SUSP 0x4000 /* last: suspend RU after */
#define RFD_ERRMASK 0x0fe1 /* status: errormask */
#define RFD_MATCHADD 0x0002 /* status: Destinationaddress !matches IA */
#define RFD_RNR 0x0200 /* status: receiver out of resources */
/*
* Receive Buffer Descriptor (RBD)
*/
struct rbd_struct
{
unsigned short status; /* status word,number of used bytes in buff */
unsigned short next; /* pointeroffset to next RBD */
char *buffer; /* receive buffer address pointer */
unsigned short size; /* size of this buffer */
unsigned short zero_dummy; /* dummy */
};
#define RBD_LAST 0x8000 /* last buffer */
#define RBD_USED 0x4000 /* this buffer has data */
#define RBD_MASK 0x3fff /* size-mask for length */
/*
* Statusvalues for Commands/RFD
*/
#define STAT_COMPL 0x8000 /* status: frame/command is complete */
#define STAT_BUSY 0x4000 /* status: frame/command is busy */
#define STAT_OK 0x2000 /* status: frame/command is ok */
/*
* Action-Commands
*/
#define CMD_NOP 0x0000 /* NOP */
#define CMD_IASETUP 0x0001 /* initial address setup command */
#define CMD_CONFIGURE 0x0002 /* configure command */
#define CMD_MCSETUP 0x0003 /* MC setup command */
#define CMD_XMIT 0x0004 /* transmit command */
#define CMD_TDR 0x0005 /* time domain reflectometer (TDR) command */
#define CMD_DUMP 0x0006 /* dump command */
#define CMD_DIAGNOSE 0x0007 /* diagnose command */
/*
* Action command bits
*/
#define CMD_LAST 0x8000 /* indicates last command in the CBL */
#define CMD_SUSPEND 0x4000 /* suspend CU after this CB */
#define CMD_INT 0x2000 /* generate interrupt after execution */
/*
* NOP - command
*/
struct nop_cmd_struct
{
unsigned short cmd_status; /* status of this command */
unsigned short cmd_cmd; /* the command itself (+bits) */
unsigned short cmd_link; /* offsetpointer to next command */
};
/*
* IA Setup command
*/
struct iasetup_cmd_struct
{
unsigned short cmd_status;
unsigned short cmd_cmd;
unsigned short cmd_link;
unsigned char iaddr[6];
};
/*
* Configure command
*/
struct configure_cmd_struct
{
unsigned short cmd_status;
unsigned short cmd_cmd;
unsigned short cmd_link;
unsigned char byte_cnt; /* size of the config-cmd */
unsigned char fifo; /* fifo/recv monitor */
unsigned char sav_bf; /* save bad frames (bit7=1)*/
unsigned char adr_len; /* adr_len(0-2),al_loc(3),pream(4-5),loopbak(6-7)*/
unsigned char priority; /* lin_prio(0-2),exp_prio(4-6),bof_metd(7) */
unsigned char ifs; /* inter frame spacing */
unsigned char time_low; /* slot time low */
unsigned char time_high; /* slot time high(0-2) and max. retries(4-7) */
unsigned char promisc; /* promisc-mode(0) , et al (1-7) */
unsigned char carr_coll; /* carrier(0-3)/collision(4-7) stuff */
unsigned char fram_len; /* minimal frame len */
unsigned char dummy; /* dummy */
};
/*
* Multicast Setup command
*/
struct mcsetup_cmd_struct
{
unsigned short cmd_status;
unsigned short cmd_cmd;
unsigned short cmd_link;
unsigned short mc_cnt; /* number of bytes in the MC-List */
unsigned char mc_list[0][6]; /* pointer to 6 bytes entries */
};
/*
* transmit command
*/
struct transmit_cmd_struct
{
unsigned short cmd_status;
unsigned short cmd_cmd;
unsigned short cmd_link;
unsigned short tbd_offset; /* pointeroffset to TBD */
unsigned char dest[6]; /* destination address of the frame */
unsigned short length; /* user defined: 802.3 length / Ether type */
};
#define TCMD_ERRMASK 0x0fa0
#define TCMD_MAXCOLLMASK 0x000f
#define TCMD_MAXCOLL 0x0020
#define TCMD_HEARTBEAT 0x0040
#define TCMD_DEFERRED 0x0080
#define TCMD_UNDERRUN 0x0100
#define TCMD_LOSTCTS 0x0200
#define TCMD_NOCARRIER 0x0400
#define TCMD_LATECOLL 0x0800
struct tdr_cmd_struct
{
unsigned short cmd_status;
unsigned short cmd_cmd;
unsigned short cmd_link;
unsigned short status;
};
#define TDR_LNK_OK 0x8000 /* No link problem identified */
#define TDR_XCVR_PRB 0x4000 /* indicates a transceiver problem */
#define TDR_ET_OPN 0x2000 /* open, no correct termination */
#define TDR_ET_SRT 0x1000 /* TDR detected a short circuit */
#define TDR_TIMEMASK 0x07ff /* mask for the time field */
/*
* Transmit Buffer Descriptor (TBD)
*/
struct tbd_struct
{
unsigned short size; /* size + EOF-Flag(15) */
unsigned short next; /* pointeroffset to next TBD */
char *buffer; /* pointer to buffer */
};
#define TBD_LAST 0x8000 /* EOF-Flag, indicates last buffer in list */
/*************************************************************************/
/*
Verbatim from the Crynwyr stuff:
The 3c523 responds with adapter code 0x6042 at slot
registers xxx0 and xxx1. The setup register is at xxx2 and
contains the following bits:
0: card enable
2,1: csr address select
00 = 0300
01 = 1300
10 = 2300
11 = 3300
4,3: shared memory address select
00 = 0c0000
01 = 0c8000
10 = 0d0000
11 = 0d8000
5: set to disable on-board thinnet
7,6: (read-only) shows selected irq
00 = 12
01 = 7
10 = 3
11 = 9
The interrupt-select register is at xxx3 and uses one bit per irq.
0: int 12
1: int 7
2: int 3
3: int 9
Again, the documentation stresses that the setup register
should never be written. The interrupt-select register may be
written with the value corresponding to bits 7.6 in
the setup register to insure corret setup.
*/
/* Offsets from the base I/O address. */
#define ELMC_SA 0 /* first 6 bytes are IEEE network address */
#define ELMC_CTRL 6 /* control & status register */
#define ELMC_REVISION 7 /* revision register, first 4 bits only */
#define ELMC_IO_EXTENT 8
/* these are the bit selects for the port register 2 */
#define ELMC_STATUS_ENABLED 0x01
#define ELMC_STATUS_CSR_SELECT 0x06
#define ELMC_STATUS_MEMORY_SELECT 0x18
#define ELMC_STATUS_DISABLE_THIN 0x20
#define ELMC_STATUS_IRQ_SELECT 0xc0
/* this is the card id used in the detection code. You might recognize
it from @6042.adf */
#define ELMC_MCA_ID 0x6042
/*
The following define the bits for the control & status register
The bank select registers can be used if more than 16K of memory is
on the card. For some stupid reason, bank 3 is the one for the
bottom 16K, and the card defaults to bank 0. So we have to set the
bank to 3 before the card will even think of operating. To get bank
3, set BS0 and BS1 to high (of course...)
*/
#define ELMC_CTRL_BS0 0x01 /* RW bank select */
#define ELMC_CTRL_BS1 0x02 /* RW bank select */
#define ELMC_CTRL_INTE 0x04 /* RW interrupt enable, assert high */
#define ELMC_CTRL_INT 0x08 /* R interrupt active, assert high */
/*#define ELMC_CTRL_* 0x10*/ /* reserved */
#define ELMC_CTRL_LBK 0x20 /* RW loopback enable, assert high */
#define ELMC_CTRL_CA 0x40 /* RW channel attention, assert high */
#define ELMC_CTRL_RST 0x80 /* RW 82586 reset, assert low */
/* some handy compound bits */
/* normal operation should have bank 3 and RST high, ints enabled */
#define ELMC_NORMAL (ELMC_CTRL_INTE|ELMC_CTRL_RST|0x3)
#endif /* _3c523_INCLUDE_ */
drivers/net/ethernet/i825xx/3c527.c deleted 100644 → 0
View file @ bc6a4744
/* 3c527.c: 3Com Etherlink/MC32 driver for Linux 2.4 and 2.6.
*
* (c) Copyright 1998 Red Hat Software Inc
* Written by Alan Cox.
* Further debugging by Carl Drougge.
* Initial SMP support by Felipe W Damasio <felipewd@terra.com.br>
* Heavily modified by Richard Procter <rnp@paradise.net.nz>
*
* Based on skeleton.c written 1993-94 by Donald Becker and ne2.c
* (for the MCA stuff) written by Wim Dumon.
*
* Thanks to 3Com for making this possible by providing me with the
* documentation.
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
*/
#define DRV_NAME "3c527"
#define DRV_VERSION "0.7-SMP"
#define DRV_RELDATE "2003/09/21"
static const char *version =
DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " Richard Procter <rnp@paradise.net.nz>\n";
/**
* DOC: Traps for the unwary
*
* The diagram (Figure 1-1) and the POS summary disagree with the
* "Interrupt Level" section in the manual.
*
* The manual contradicts itself when describing the minimum number
* buffers in the 'configure lists' command.
* My card accepts a buffer config of 4/4.
*
* Setting the SAV BP bit does not save bad packets, but
* only enables RX on-card stats collection.
*
* The documentation in places seems to miss things. In actual fact
* I've always eventually found everything is documented, it just
* requires careful study.
*
* DOC: Theory Of Operation
*
* The 3com 3c527 is a 32bit MCA bus mastering adapter with a large
* amount of on board intelligence that housekeeps a somewhat dumber
* Intel NIC. For performance we want to keep the transmit queue deep
* as the card can transmit packets while fetching others from main
* memory by bus master DMA. Transmission and reception are driven by
* circular buffer queues.
*
* The mailboxes can be used for controlling how the card traverses
* its buffer rings, but are used only for initial setup in this
* implementation. The exec mailbox allows a variety of commands to
* be executed. Each command must complete before the next is
* executed. Primarily we use the exec mailbox for controlling the
* multicast lists. We have to do a certain amount of interesting
* hoop jumping as the multicast list changes can occur in interrupt
* state when the card has an exec command pending. We defer such
* events until the command completion interrupt.
*
* A copy break scheme (taken from 3c59x.c) is employed whereby
* received frames exceeding a configurable length are passed
* directly to the higher networking layers without incuring a copy,
* in what amounts to a time/space trade-off.
*
* The card also keeps a large amount of statistical information
* on-board. In a perfect world, these could be used safely at no
* cost. However, lacking information to the contrary, processing
* them without races would involve so much extra complexity as to
* make it unworthwhile to do so. In the end, a hybrid SW/HW
* implementation was made necessary --- see mc32_update_stats().
*
* DOC: Notes
*
* It should be possible to use two or more cards, but at this stage
* only by loading two copies of the same module.
*
* The on-board 82586 NIC has trouble receiving multiple
* back-to-back frames and so is likely to drop packets from fast
* senders.
**/
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/if_ether.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/fcntl.h>
#include <linux/interrupt.h>
#include <linux/mca-legacy.h>
#include <linux/ioport.h>
#include <linux/in.h>
#include <linux/skbuff.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/wait.h>
#include <linux/ethtool.h>
#include <linux/completion.h>
#include <linux/bitops.h>
#include <linux/semaphore.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/dma.h>
#include "3c527.h"
MODULE_LICENSE("GPL");
/*
* The name of the card. Is used for messages and in the requests for
* io regions, irqs and dma channels
*/
static const char* cardname = DRV_NAME;
/* use 0 for production, 1 for verification, >2 for debug */
#ifndef NET_DEBUG
#define NET_DEBUG 2
#endif
static unsigned int mc32_debug = NET_DEBUG;
/* The number of low I/O ports used by the ethercard. */
#define MC32_IO_EXTENT 8
/* As implemented, values must be a power-of-2 -- 4/8/16/32 */
#define TX_RING_LEN 32 /* Typically the card supports 37 */
#define RX_RING_LEN 8 /* " " " */
/* Copy break point, see above for details.
* Setting to > 1512 effectively disables this feature. */
#define RX_COPYBREAK 200 /* Value from 3c59x.c */
/* Issue the 82586 workaround command - this is for "busy lans", but
* basically means for all lans now days - has a performance (latency)
* cost, but best set. */
static const int WORKAROUND_82586=1;
/* Pointers to buffers and their on-card records */
struct mc32_ring_desc
{
volatile struct skb_header *p;
struct sk_buff *skb;
};
/* Information that needs to be kept for each board. */
struct mc32_local
{
int slot;
u32 base;
volatile struct mc32_mailbox *rx_box;
volatile struct mc32_mailbox *tx_box;
volatile struct mc32_mailbox *exec_box;
volatile struct mc32_stats *stats; /* Start of on-card statistics */
u16 tx_chain; /* Transmit list start offset */
u16 rx_chain; /* Receive list start offset */
u16 tx_len; /* Transmit list count */
u16 rx_len; /* Receive list count */
u16 xceiver_desired_state; /* HALTED or RUNNING */
u16 cmd_nonblocking; /* Thread is uninterested in command result */
u16 mc_reload_wait; /* A multicast load request is pending */
u32 mc_list_valid; /* True when the mclist is set */
struct mc32_ring_desc tx_ring[TX_RING_LEN]; /* Host Transmit ring */
struct mc32_ring_desc rx_ring[RX_RING_LEN]; /* Host Receive ring */
atomic_t tx_count; /* buffers left */
atomic_t tx_ring_head; /* index to tx en-queue end */
u16 tx_ring_tail; /* index to tx de-queue end */
u16 rx_ring_tail; /* index to rx de-queue end */
struct semaphore cmd_mutex; /* Serialises issuing of execute commands */
struct completion execution_cmd; /* Card has completed an execute command */
struct completion xceiver_cmd; /* Card has completed a tx or rx command */
};
/* The station (ethernet) address prefix, used for a sanity check. */
#define SA_ADDR0 0x02
#define SA_ADDR1 0x60
#define SA_ADDR2 0xAC
struct mca_adapters_t {
unsigned int id;
char *name;
};
static const struct mca_adapters_t mc32_adapters[] = {
{ 0x0041, "3COM EtherLink MC/32" },
{ 0x8EF5, "IBM High Performance Lan Adapter" },
{ 0x0000, NULL }
};
/* Macros for ring index manipulations */
static inline u16 next_rx(u16 rx) { return (rx+1)&(RX_RING_LEN-1); };
static inline u16 prev_rx(u16 rx) { return (rx-1)&(RX_RING_LEN-1); };
static inline u16 next_tx(u16 tx) { return (tx+1)&(TX_RING_LEN-1); };
/* Index to functions, as function prototypes. */
static int mc32_probe1(struct net_device *dev, int ioaddr);
static int mc32_command(struct net_device *dev, u16 cmd, void *data, int len);
static int mc32_open(struct net_device *dev);
static void mc32_timeout(struct net_device *dev);
static netdev_tx_t mc32_send_packet(struct sk_buff *skb,
struct net_device *dev);
static irqreturn_t mc32_interrupt(int irq, void *dev_id);
static int mc32_close(struct net_device *dev);
static struct net_device_stats *mc32_get_stats(struct net_device *dev);
static void mc32_set_multicast_list(struct net_device *dev);
static void mc32_reset_multicast_list(struct net_device *dev);
static const struct ethtool_ops netdev_ethtool_ops;
static void cleanup_card(struct net_device *dev)
{
struct mc32_local *lp = netdev_priv(dev);
unsigned slot = lp->slot;
mca_mark_as_unused(slot);
mca_set_adapter_name(slot, NULL);
free_irq(dev->irq, dev);
release_region(dev->base_addr, MC32_IO_EXTENT);
}
/**
* mc32_probe - Search for supported boards
* @unit: interface number to use
*
* Because MCA bus is a real bus and we can scan for cards we could do a
* single scan for all boards here. Right now we use the passed in device
* structure and scan for only one board. This needs fixing for modules
* in particular.
*/
struct net_device *__init mc32_probe(int unit)
{
struct net_device *dev = alloc_etherdev(sizeof(struct mc32_local));
static int current_mca_slot = -1;
int i;
int err;
if (!dev)
return ERR_PTR(-ENOMEM);
if (unit >= 0)
sprintf(dev->name, "eth%d", unit);
/* Do not check any supplied i/o locations.
POS registers usually don't fail :) */
/* MCA cards have POS registers.
Autodetecting MCA cards is extremely simple.
Just search for the card. */
for(i = 0; (mc32_adapters[i].name != NULL); i++) {
current_mca_slot =
mca_find_unused_adapter(mc32_adapters[i].id, 0);
if(current_mca_slot != MCA_NOTFOUND) {
if(!mc32_probe1(dev, current_mca_slot))
{
mca_set_adapter_name(current_mca_slot,
mc32_adapters[i].name);
mca_mark_as_used(current_mca_slot);
err = register_netdev(dev);
if (err) {
cleanup_card(dev);
free_netdev(dev);
dev = ERR_PTR(err);
}
return dev;
}
}
}
free_netdev(dev);
return ERR_PTR(-ENODEV);
}
static const struct net_device_ops netdev_ops = {
.ndo_open = mc32_open,
.ndo_stop = mc32_close,
.ndo_start_xmit = mc32_send_packet,
.ndo_get_stats = mc32_get_stats,
.ndo_set_rx_mode = mc32_set_multicast_list,
.ndo_tx_timeout = mc32_timeout,
.ndo_change_mtu = eth_change_mtu,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};
/**
* mc32_probe1 - Check a given slot for a board and test the card
* @dev: Device structure to fill in
* @slot: The MCA bus slot being used by this card
*
* Decode the slot data and configure the card structures. Having done this we
* can reset the card and configure it. The card does a full self test cycle
* in firmware so we have to wait for it to return and post us either a
* failure case or some addresses we use to find the board internals.
*/
static int __init mc32_probe1(struct net_device *dev, int slot)
{
static unsigned version_printed;
int i, err;
u8 POS;
u32 base;
struct mc32_local *lp = netdev_priv(dev);
static const u16 mca_io_bases[] = {
0x7280,0x7290,
0x7680,0x7690,
0x7A80,0x7A90,
0x7E80,0x7E90
};
static const u32 mca_mem_bases[] = {
0x00C0000,
0x00C4000,
0x00C8000,
0x00CC000,
0x00D0000,
0x00D4000,
0x00D8000,
0x00DC000
};
static const char * const failures[] = {
"Processor instruction",
"Processor data bus",
"Processor data bus",
"Processor data bus",
"Adapter bus",
"ROM checksum",
"Base RAM",
"Extended RAM",
"82586 internal loopback",
"82586 initialisation failure",
"Adapter list configuration error"
};
/* Time to play MCA games */
if (mc32_debug && version_printed++ == 0)
pr_debug("%s", version);
pr_info("%s: %s found in slot %d: ", dev->name, cardname, slot);
POS = mca_read_stored_pos(slot, 2);
if(!(POS&1))
{
pr_cont("disabled.\n");
return -ENODEV;
}
/* Fill in the 'dev' fields. */
dev->base_addr = mca_io_bases[(POS>>1)&7];
dev->mem_start = mca_mem_bases[(POS>>4)&7];
POS = mca_read_stored_pos(slot, 4);
if(!(POS&1))
{
pr_cont("memory window disabled.\n");
return -ENODEV;
}
POS = mca_read_stored_pos(slot, 5);
i=(POS>>4)&3;
if(i==3)
{
pr_cont("invalid memory window.\n");
return -ENODEV;
}
i*=16384;
i+=16384;
dev->mem_end=dev->mem_start + i;
dev->irq = ((POS>>2)&3)+9;
if(!request_region(dev->base_addr, MC32_IO_EXTENT, cardname))
{
pr_cont("io 0x%3lX, which is busy.\n", dev->base_addr);
return -EBUSY;
}
pr_cont("io 0x%3lX irq %d mem 0x%lX (%dK)\n",
dev->base_addr, dev->irq, dev->mem_start, i/1024);
/* We ought to set the cache line size here.. */
/*
* Go PROM browsing
*/
/* Retrieve and print the ethernet address. */
for (i = 0; i < 6; i++)
{
mca_write_pos(slot, 6, i+12);
mca_write_pos(slot, 7, 0);
dev->dev_addr[i] = mca_read_pos(slot,3);
}
pr_info("%s: Address %pM ", dev->name, dev->dev_addr);
mca_write_pos(slot, 6, 0);
mca_write_pos(slot, 7, 0);
POS = mca_read_stored_pos(slot, 4);
if(POS&2)
pr_cont(": BNC port selected.\n");
else
pr_cont(": AUI port selected.\n");
POS=inb(dev->base_addr+HOST_CTRL);
POS|=HOST_CTRL_ATTN|HOST_CTRL_RESET;
POS&=~HOST_CTRL_INTE;
outb(POS, dev->base_addr+HOST_CTRL);
/* Reset adapter */
udelay(100);
/* Reset off */
POS&=~(HOST_CTRL_ATTN|HOST_CTRL_RESET);
outb(POS, dev->base_addr+HOST_CTRL);
udelay(300);
/*
* Grab the IRQ
*/
err = request_irq(dev->irq, mc32_interrupt, IRQF_SHARED, DRV_NAME, dev);
if (err) {
release_region(dev->base_addr, MC32_IO_EXTENT);
pr_err("%s: unable to get IRQ %d.\n", DRV_NAME, dev->irq);
goto err_exit_ports;
}
memset(lp, 0, sizeof(struct mc32_local));
lp->slot = slot;
i=0;
base = inb(dev->base_addr);
while(base == 0xFF)
{
i++;
if(i == 1000)
{
pr_err("%s: failed to boot adapter.\n", dev->name);
err = -ENODEV;
goto err_exit_irq;
}
udelay(1000);
if(inb(dev->base_addr+2)&(1<<5))
base = inb(dev->base_addr);
}
if(base>0)
{
if(base < 0x0C)
pr_err("%s: %s%s.\n", dev->name, failures[base-1],
base<0x0A?" test failure":"");
else
pr_err("%s: unknown failure %d.\n", dev->name, base);
err = -ENODEV;
goto err_exit_irq;
}
base=0;
for(i=0;i<4;i++)
{
int n=0;
while(!(inb(dev->base_addr+2)&(1<<5)))
{
n++;
udelay(50);
if(n>100)
{
pr_err("%s: mailbox read fail (%d).\n", dev->name, i);
err = -ENODEV;
goto err_exit_irq;
}
}
base|=(inb(dev->base_addr)<<(8*i));
}
lp->exec_box=isa_bus_to_virt(dev->mem_start+base);
base=lp->exec_box->data[1]<<16|lp->exec_box->data[0];
lp->base = dev->mem_start+base;
lp->rx_box=isa_bus_to_virt(lp->base + lp->exec_box->data[2]);
lp->tx_box=isa_bus_to_virt(lp->base + lp->exec_box->data[3]);
lp->stats = isa_bus_to_virt(lp->base + lp->exec_box->data[5]);
/*
* Descriptor chains (card relative)
*/
lp->tx_chain = lp->exec_box->data[8]; /* Transmit list start offset */
lp->rx_chain = lp->exec_box->data[10]; /* Receive list start offset */
lp->tx_len = lp->exec_box->data[9]; /* Transmit list count */
lp->rx_len = lp->exec_box->data[11]; /* Receive list count */
sema_init(&lp->cmd_mutex, 0);
init_completion(&lp->execution_cmd);
init_completion(&lp->xceiver_cmd);
pr_info("%s: Firmware Rev %d. %d RX buffers, %d TX buffers. Base of 0x%08X.\n",
dev->name, lp->exec_box->data[12], lp->rx_len, lp->tx_len, lp->base);
dev->netdev_ops = &netdev_ops;
dev->watchdog_timeo = HZ*5; /* Board does all the work */
dev->ethtool_ops = &netdev_ethtool_ops;
return 0;
err_exit_irq:
free_irq(dev->irq, dev);
err_exit_ports:
release_region(dev->base_addr, MC32_IO_EXTENT);
return err;
}
/**
* mc32_ready_poll - wait until we can feed it a command
* @dev: The device to wait for
*
* Wait until the card becomes ready to accept a command via the
* command register. This tells us nothing about the completion
* status of any pending commands and takes very little time at all.
*/
static inline void mc32_ready_poll(struct net_device *dev)
{
int ioaddr = dev->base_addr;
while(!(inb(ioaddr+HOST_STATUS)&HOST_STATUS_CRR));
}
/**
* mc32_command_nowait - send a command non blocking
* @dev: The 3c527 to issue the command to
* @cmd: The command word to write to the mailbox
* @data: A data block if the command expects one
* @len: Length of the data block
*
* Send a command from interrupt state. If there is a command
* currently being executed then we return an error of -1. It
* simply isn't viable to wait around as commands may be
* slow. This can theoretically be starved on SMP, but it's hard
* to see a realistic situation. We do not wait for the command
* to complete --- we rely on the interrupt handler to tidy up
* after us.
*/
static int mc32_command_nowait(struct net_device *dev, u16 cmd, void *data, int len)
{
struct mc32_local *lp = netdev_priv(dev);
int ioaddr = dev->base_addr;
int ret = -1;
if (down_trylock(&lp->cmd_mutex) == 0)
{
lp->cmd_nonblocking=1;
lp->exec_box->mbox=0;
lp->exec_box->mbox=cmd;
memcpy((void *)lp->exec_box->data, data, len);
barrier(); /* the memcpy forgot the volatile so be sure */
/* Send the command */
mc32_ready_poll(dev);
outb(1<<6, ioaddr+HOST_CMD);
ret = 0;
/* Interrupt handler will signal mutex on completion */
}
return ret;
}
/**
* mc32_command - send a command and sleep until completion
* @dev: The 3c527 card to issue the command to
* @cmd: The command word to write to the mailbox
* @data: A data block if the command expects one
* @len: Length of the data block
*
* Sends exec commands in a user context. This permits us to wait around
* for the replies and also to wait for the command buffer to complete
* from a previous command before we execute our command. After our
* command completes we will attempt any pending multicast reload
* we blocked off by hogging the exec buffer.
*
* You feed the card a command, you wait, it interrupts you get a
* reply. All well and good. The complication arises because you use
* commands for filter list changes which come in at bh level from things
* like IPV6 group stuff.
*/
static int mc32_command(struct net_device *dev, u16 cmd, void *data, int len)
{
struct mc32_local *lp = netdev_priv(dev);
int ioaddr = dev->base_addr;
int ret = 0;
down(&lp->cmd_mutex);
/*
* My Turn
*/
lp->cmd_nonblocking=0;
lp->exec_box->mbox=0;
lp->exec_box->mbox=cmd;
memcpy((void *)lp->exec_box->data, data, len);
barrier(); /* the memcpy forgot the volatile so be sure */
mc32_ready_poll(dev);
outb(1<<6, ioaddr+HOST_CMD);
wait_for_completion(&lp->execution_cmd);
if(lp->exec_box->mbox&(1<<13))
ret = -1;
up(&lp->cmd_mutex);
/*
* A multicast set got blocked - try it now
*/
if(lp->mc_reload_wait)
{
mc32_reset_multicast_list(dev);
}
return ret;
}
/**
* mc32_start_transceiver - tell board to restart tx/rx
* @dev: The 3c527 card to issue the command to
*
* This may be called from the interrupt state, where it is used
* to restart the rx ring if the card runs out of rx buffers.
*
* We must first check if it's ok to (re)start the transceiver. See
* mc32_close for details.
*/
static void mc32_start_transceiver(struct net_device *dev) {
struct mc32_local *lp = netdev_priv(dev);
int ioaddr = dev->base_addr;
/* Ignore RX overflow on device closure */
if (lp->xceiver_desired_state==HALTED)
return;
/* Give the card the offset to the post-EOL-bit RX descriptor */
mc32_ready_poll(dev);
lp->rx_box->mbox=0;
lp->rx_box->data[0]=lp->rx_ring[prev_rx(lp->rx_ring_tail)].p->next;
outb(HOST_CMD_START_RX, ioaddr+HOST_CMD);
mc32_ready_poll(dev);
lp->tx_box->mbox=0;
outb(HOST_CMD_RESTRT_TX, ioaddr+HOST_CMD); /* card ignores this on RX restart */
/* We are not interrupted on start completion */
}
/**
* mc32_halt_transceiver - tell board to stop tx/rx
* @dev: The 3c527 card to issue the command to
*
* We issue the commands to halt the card's transceiver. In fact,
* after some experimenting we now simply tell the card to
* suspend. When issuing aborts occasionally odd things happened.
*
* We then sleep until the card has notified us that both rx and
* tx have been suspended.
*/
static void mc32_halt_transceiver(struct net_device *dev)
{
struct mc32_local *lp = netdev_priv(dev);
int ioaddr = dev->base_addr;
mc32_ready_poll(dev);
lp->rx_box->mbox=0;
outb(HOST_CMD_SUSPND_RX, ioaddr+HOST_CMD);
wait_for_completion(&lp->xceiver_cmd);
mc32_ready_poll(dev);
lp->tx_box->mbox=0;
outb(HOST_CMD_SUSPND_TX, ioaddr+HOST_CMD);
wait_for_completion(&lp->xceiver_cmd);
}
/**
* mc32_load_rx_ring - load the ring of receive buffers
* @dev: 3c527 to build the ring for
*
* This initialises the on-card and driver datastructures to
* the point where mc32_start_transceiver() can be called.
*
* The card sets up the receive ring for us. We are required to use the
* ring it provides, although the size of the ring is configurable.
*
* We allocate an sk_buff for each ring entry in turn and
* initialise its house-keeping info. At the same time, we read
* each 'next' pointer in our rx_ring array. This reduces slow
* shared-memory reads and makes it easy to access predecessor
* descriptors.
*
* We then set the end-of-list bit for the last entry so that the
* card will know when it has run out of buffers.
*/
static int mc32_load_rx_ring(struct net_device *dev)
{
struct mc32_local *lp = netdev_priv(dev);
int i;
u16 rx_base;
volatile struct skb_header *p;
rx_base=lp->rx_chain;
for(i=0; i<RX_RING_LEN; i++) {
lp->rx_ring[i].skb=alloc_skb(1532, GFP_KERNEL);
if (lp->rx_ring[i].skb==NULL) {
for (;i>=0;i--)
kfree_skb(lp->rx_ring[i].skb);
return -ENOBUFS;
}
skb_reserve(lp->rx_ring[i].skb, 18);
p=isa_bus_to_virt(lp->base+rx_base);
p->control=0;
p->data=isa_virt_to_bus(lp->rx_ring[i].skb->data);
p->status=0;
p->length=1532;
lp->rx_ring[i].p=p;
rx_base=p->next;
}
lp->rx_ring[i-1].p->control |= CONTROL_EOL;
lp->rx_ring_tail=0;
return 0;
}
/**
* mc32_flush_rx_ring - free the ring of receive buffers
* @lp: Local data of 3c527 to flush the rx ring of
*
* Free the buffer for each ring slot. This may be called
* before mc32_load_rx_ring(), eg. on error in mc32_open().
* Requires rx skb pointers to point to a valid skb, or NULL.
*/
static void mc32_flush_rx_ring(struct net_device *dev)
{
struct mc32_local *lp = netdev_priv(dev);
int i;
for(i=0; i < RX_RING_LEN; i++)
{
if (lp->rx_ring[i].skb) {
dev_kfree_skb(lp->rx_ring[i].skb);
lp->rx_ring[i].skb = NULL;
}
lp->rx_ring[i].p=NULL;
}
}
/**
* mc32_load_tx_ring - load transmit ring
* @dev: The 3c527 card to issue the command to
*
* This sets up the host transmit data-structures.
*
* First, we obtain from the card it's current position in the tx
* ring, so that we will know where to begin transmitting
* packets.
*
* Then, we read the 'next' pointers from the on-card tx ring into
* our tx_ring array to reduce slow shared-mem reads. Finally, we
* intitalise the tx house keeping variables.
*
*/
static void mc32_load_tx_ring(struct net_device *dev)
{
struct mc32_local *lp = netdev_priv(dev);
volatile struct skb_header *p;
int i;
u16 tx_base;
tx_base=lp->tx_box->data[0];
for(i=0 ; i<TX_RING_LEN ; i++)
{
p=isa_bus_to_virt(lp->base+tx_base);
lp->tx_ring[i].p=p;
lp->tx_ring[i].skb=NULL;
tx_base=p->next;
}
/* -1 so that tx_ring_head cannot "lap" tx_ring_tail */
/* see mc32_tx_ring */
atomic_set(&lp->tx_count, TX_RING_LEN-1);
atomic_set(&lp->tx_ring_head, 0);
lp->tx_ring_tail=0;
}
/**
* mc32_flush_tx_ring - free transmit ring
* @lp: Local data of 3c527 to flush the tx ring of
*
* If the ring is non-empty, zip over the it, freeing any
* allocated skb_buffs. The tx ring house-keeping variables are
* then reset. Requires rx skb pointers to point to a valid skb,
* or NULL.
*/
static void mc32_flush_tx_ring(struct net_device *dev)
{
struct mc32_local *lp = netdev_priv(dev);
int i;
for (i=0; i < TX_RING_LEN; i++)
{
if (lp->tx_ring[i].skb)
{
dev_kfree_skb(lp->tx_ring[i].skb);
lp->tx_ring[i].skb = NULL;
}
}
atomic_set(&lp->tx_count, 0);
atomic_set(&lp->tx_ring_head, 0);
lp->tx_ring_tail=0;
}
/**
* mc32_open - handle 'up' of card
* @dev: device to open
*
* The user is trying to bring the card into ready state. This requires
* a brief dialogue with the card. Firstly we enable interrupts and then
* 'indications'. Without these enabled the card doesn't bother telling
* us what it has done. This had me puzzled for a week.
*
* We configure the number of card descriptors, then load the network
* address and multicast filters. Turn on the workaround mode. This
* works around a bug in the 82586 - it asks the firmware to do
* so. It has a performance (latency) hit but is needed on busy
* [read most] lans. We load the ring with buffers then we kick it
* all off.
*/
static int mc32_open(struct net_device *dev)
{
int ioaddr = dev->base_addr;
struct mc32_local *lp = netdev_priv(dev);
u8 one=1;
u8 regs;
u16 descnumbuffs[2] = {TX_RING_LEN, RX_RING_LEN};
/*
* Interrupts enabled
*/
regs=inb(ioaddr+HOST_CTRL);
regs|=HOST_CTRL_INTE;
outb(regs, ioaddr+HOST_CTRL);
/*
* Allow ourselves to issue commands
*/
up(&lp->cmd_mutex);
/*
* Send the indications on command
*/
mc32_command(dev, 4, &one, 2);
/*
* Poke it to make sure it's really dead.
*/
mc32_halt_transceiver(dev);
mc32_flush_tx_ring(dev);
/*
* Ask card to set up on-card descriptors to our spec
*/
if(mc32_command(dev, 8, descnumbuffs, 4)) {
pr_info("%s: %s rejected our buffer configuration!\n",
dev->name, cardname);
mc32_close(dev);
return -ENOBUFS;
}
/* Report new configuration */
mc32_command(dev, 6, NULL, 0);
lp->tx_chain = lp->exec_box->data[8]; /* Transmit list start offset */
lp->rx_chain = lp->exec_box->data[10]; /* Receive list start offset */
lp->tx_len = lp->exec_box->data[9]; /* Transmit list count */
lp->rx_len = lp->exec_box->data[11]; /* Receive list count */
/* Set Network Address */
mc32_command(dev, 1, dev->dev_addr, 6);
/* Set the filters */
mc32_set_multicast_list(dev);
if (WORKAROUND_82586) {
u16 zero_word=0;
mc32_command(dev, 0x0D, &zero_word, 2); /* 82586 bug workaround on */
}
mc32_load_tx_ring(dev);
if(mc32_load_rx_ring(dev))
{
mc32_close(dev);
return -ENOBUFS;
}
lp->xceiver_desired_state = RUNNING;
/* And finally, set the ball rolling... */
mc32_start_transceiver(dev);
netif_start_queue(dev);
return 0;
}
/**
* mc32_timeout - handle a timeout from the network layer
* @dev: 3c527 that timed out
*
* Handle a timeout on transmit from the 3c527. This normally means
* bad things as the hardware handles cable timeouts and mess for
* us.
*
*/
static void mc32_timeout(struct net_device *dev)
{
pr_warning("%s: transmit timed out?\n", dev->name);
/* Try to restart the adaptor. */
netif_wake_queue(dev);
}
/**
* mc32_send_packet - queue a frame for transmit
* @skb: buffer to transmit
* @dev: 3c527 to send it out of
*
* Transmit a buffer. This normally means throwing the buffer onto
* the transmit queue as the queue is quite large. If the queue is
* full then we set tx_busy and return. Once the interrupt handler
* gets messages telling it to reclaim transmit queue entries, we will
* clear tx_busy and the kernel will start calling this again.
*
* We do not disable interrupts or acquire any locks; this can
* run concurrently with mc32_tx_ring(), and the function itself
* is serialised at a higher layer. However, similarly for the
* card itself, we must ensure that we update tx_ring_head only
* after we've established a valid packet on the tx ring (and
* before we let the card "see" it, to prevent it racing with the
* irq handler).
*
*/
static netdev_tx_t mc32_send_packet(struct sk_buff *skb,
struct net_device *dev)
{
struct mc32_local *lp = netdev_priv(dev);
u32 head = atomic_read(&lp->tx_ring_head);
volatile struct skb_header *p, *np;
netif_stop_queue(dev);
if(atomic_read(&lp->tx_count)==0) {
return NETDEV_TX_BUSY;
}
if (skb_padto(skb, ETH_ZLEN)) {
netif_wake_queue(dev);
return NETDEV_TX_OK;
}
atomic_dec(&lp->tx_count);
/* P is the last sending/sent buffer as a pointer */
p=lp->tx_ring[head].p;
head = next_tx(head);
/* NP is the buffer we will be loading */
np=lp->tx_ring[head].p;
/* We will need this to flush the buffer out */
lp->tx_ring[head].skb=skb;
np->length = unlikely(skb->len < ETH_ZLEN) ? ETH_ZLEN : skb->len;
np->data = isa_virt_to_bus(skb->data);
np->status = 0;
np->control = CONTROL_EOP | CONTROL_EOL;
wmb();
/*
* The new frame has been setup; we can now
* let the interrupt handler and card "see" it
*/
atomic_set(&lp->tx_ring_head, head);
p->control &= ~CONTROL_EOL;
netif_wake_queue(dev);
return NETDEV_TX_OK;
}
/**
* mc32_update_stats - pull off the on board statistics
* @dev: 3c527 to service
*
*
* Query and reset the on-card stats. There's the small possibility
* of a race here, which would result in an underestimation of
* actual errors. As such, we'd prefer to keep all our stats
* collection in software. As a rule, we do. However it can't be
* used for rx errors and collisions as, by default, the card discards
* bad rx packets.
*
* Setting the SAV BP in the rx filter command supposedly
* stops this behaviour. However, testing shows that it only seems to
* enable the collation of on-card rx statistics --- the driver
* never sees an RX descriptor with an error status set.
*
*/
static void mc32_update_stats(struct net_device *dev)
{
struct mc32_local *lp = netdev_priv(dev);
volatile struct mc32_stats *st = lp->stats;
u32 rx_errors=0;
rx_errors+=dev->stats.rx_crc_errors +=st->rx_crc_errors;
st->rx_crc_errors=0;
rx_errors+=dev->stats.rx_fifo_errors +=st->rx_overrun_errors;
st->rx_overrun_errors=0;
rx_errors+=dev->stats.rx_frame_errors +=st->rx_alignment_errors;
st->rx_alignment_errors=0;
rx_errors+=dev->stats.rx_length_errors+=st->rx_tooshort_errors;
st->rx_tooshort_errors=0;
rx_errors+=dev->stats.rx_missed_errors+=st->rx_outofresource_errors;
st->rx_outofresource_errors=0;
dev->stats.rx_errors=rx_errors;
/* Number of packets which saw one collision */
dev->stats.collisions+=st->dataC[10];
st->dataC[10]=0;
/* Number of packets which saw 2--15 collisions */
dev->stats.collisions+=st->dataC[11];
st->dataC[11]=0;
}
/**
* mc32_rx_ring - process the receive ring
* @dev: 3c527 that needs its receive ring processing
*
*
* We have received one or more indications from the card that a
* receive has completed. The buffer ring thus contains dirty
* entries. We walk the ring by iterating over the circular rx_ring
* array, starting at the next dirty buffer (which happens to be the
* one we finished up at last time around).
*
* For each completed packet, we will either copy it and pass it up
* the stack or, if the packet is near MTU sized, we allocate
* another buffer and flip the old one up the stack.
*
* We must succeed in keeping a buffer on the ring. If necessary we
* will toss a received packet rather than lose a ring entry. Once
* the first uncompleted descriptor is found, we move the
* End-Of-List bit to include the buffers just processed.
*
*/
static void mc32_rx_ring(struct net_device *dev)
{
struct mc32_local *lp = netdev_priv(dev);
volatile struct skb_header *p;
u16 rx_ring_tail;
u16 rx_old_tail;
int x=0;
rx_old_tail = rx_ring_tail = lp->rx_ring_tail;
do
{
p=lp->rx_ring[rx_ring_tail].p;
if(!(p->status & (1<<7))) { /* Not COMPLETED */
break;
}
if(p->status & (1<<6)) /* COMPLETED_OK */
{
u16 length=p->length;
struct sk_buff *skb;
struct sk_buff *newskb;
/* Try to save time by avoiding a copy on big frames */
if ((length > RX_COPYBREAK) &&
((newskb = netdev_alloc_skb(dev, 1532)) != NULL))
{
skb=lp->rx_ring[rx_ring_tail].skb;
skb_put(skb, length);
skb_reserve(newskb,18);
lp->rx_ring[rx_ring_tail].skb=newskb;
p->data=isa_virt_to_bus(newskb->data);
}
else
{
skb = netdev_alloc_skb(dev, length + 2);
if(skb==NULL) {
dev->stats.rx_dropped++;
goto dropped;
}
skb_reserve(skb,2);
memcpy(skb_put(skb, length),
lp->rx_ring[rx_ring_tail].skb->data, length);
}
skb->protocol=eth_type_trans(skb,dev);
dev->stats.rx_packets++;
dev->stats.rx_bytes += length;
netif_rx(skb);
}
dropped:
p->length = 1532;
p->status = 0;
rx_ring_tail=next_rx(rx_ring_tail);
}
while(x++<48);
/* If there was actually a frame to be processed, place the EOL bit */
/* at the descriptor prior to the one to be filled next */
if (rx_ring_tail != rx_old_tail)
{
lp->rx_ring[prev_rx(rx_ring_tail)].p->control |= CONTROL_EOL;
lp->rx_ring[prev_rx(rx_old_tail)].p->control &= ~CONTROL_EOL;
lp->rx_ring_tail=rx_ring_tail;
}
}
/**
* mc32_tx_ring - process completed transmits
* @dev: 3c527 that needs its transmit ring processing
*
*
* This operates in a similar fashion to mc32_rx_ring. We iterate
* over the transmit ring. For each descriptor which has been
* processed by the card, we free its associated buffer and note
* any errors. This continues until the transmit ring is emptied
* or we reach a descriptor that hasn't yet been processed by the
* card.
*
*/
static void mc32_tx_ring(struct net_device *dev)
{
struct mc32_local *lp = netdev_priv(dev);
volatile struct skb_header *np;
/*
* We rely on head==tail to mean 'queue empty'.
* This is why lp->tx_count=TX_RING_LEN-1: in order to prevent
* tx_ring_head wrapping to tail and confusing a 'queue empty'
* condition with 'queue full'
*/
while (lp->tx_ring_tail != atomic_read(&lp->tx_ring_head))
{
u16 t;
t=next_tx(lp->tx_ring_tail);
np=lp->tx_ring[t].p;
if(!(np->status & (1<<7)))
{
/* Not COMPLETED */
break;
}
dev->stats.tx_packets++;
if(!(np->status & (1<<6))) /* Not COMPLETED_OK */
{
dev->stats.tx_errors++;
switch(np->status&0x0F)
{
case 1:
dev->stats.tx_aborted_errors++;
break; /* Max collisions */
case 2:
dev->stats.tx_fifo_errors++;
break;
case 3:
dev->stats.tx_carrier_errors++;
break;
case 4:
dev->stats.tx_window_errors++;
break; /* CTS Lost */
case 5:
dev->stats.tx_aborted_errors++;
break; /* Transmit timeout */
}
}
/* Packets are sent in order - this is
basically a FIFO queue of buffers matching
the card ring */
dev->stats.tx_bytes+=lp->tx_ring[t].skb->len;
dev_kfree_skb_irq(lp->tx_ring[t].skb);
lp->tx_ring[t].skb=NULL;
atomic_inc(&lp->tx_count);
netif_wake_queue(dev);
lp->tx_ring_tail=t;
}
}
/**
* mc32_interrupt - handle an interrupt from a 3c527
* @irq: Interrupt number
* @dev_id: 3c527 that requires servicing
* @regs: Registers (unused)
*
*
* An interrupt is raised whenever the 3c527 writes to the command
* register. This register contains the message it wishes to send us
* packed into a single byte field. We keep reading status entries
* until we have processed all the control items, but simply count
* transmit and receive reports. When all reports are in we empty the
* transceiver rings as appropriate. This saves the overhead of
* multiple command requests.
*
* Because MCA is level-triggered, we shouldn't miss indications.
* Therefore, we needn't ask the card to suspend interrupts within
* this handler. The card receives an implicit acknowledgment of the
* current interrupt when we read the command register.
*
*/
static irqreturn_t mc32_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct mc32_local *lp;
int ioaddr, status, boguscount = 0;
int rx_event = 0;
int tx_event = 0;
ioaddr = dev->base_addr;
lp = netdev_priv(dev);
/* See whats cooking */
while((inb(ioaddr+HOST_STATUS)&HOST_STATUS_CWR) && boguscount++<2000)
{
status=inb(ioaddr+HOST_CMD);
pr_debug("Status TX%d RX%d EX%d OV%d BC%d\n",
(status&7), (status>>3)&7, (status>>6)&1,
(status>>7)&1, boguscount);
switch(status&7)
{
case 0:
break;
case 6: /* TX fail */
case 2: /* TX ok */
tx_event = 1;
break;
case 3: /* Halt */
case 4: /* Abort */
complete(&lp->xceiver_cmd);
break;
default:
pr_notice("%s: strange tx ack %d\n", dev->name, status&7);
}
status>>=3;
switch(status&7)
{
case 0:
break;
case 2: /* RX */
rx_event=1;
break;
case 3: /* Halt */
case 4: /* Abort */
complete(&lp->xceiver_cmd);
break;
case 6:
/* Out of RX buffers stat */
/* Must restart rx */
dev->stats.rx_dropped++;
mc32_rx_ring(dev);
mc32_start_transceiver(dev);
break;
default:
pr_notice("%s: strange rx ack %d\n",
dev->name, status&7);
}
status>>=3;
if(status&1)
{
/*
* No thread is waiting: we need to tidy
* up ourself.
*/
if (lp->cmd_nonblocking) {
up(&lp->cmd_mutex);
if (lp->mc_reload_wait)
mc32_reset_multicast_list(dev);
}
else complete(&lp->execution_cmd);
}
if(status&2)
{
/*
* We get interrupted once per
* counter that is about to overflow.
*/
mc32_update_stats(dev);
}
}
/*
* Process the transmit and receive rings
*/
if(tx_event)
mc32_tx_ring(dev);
if(rx_event)
mc32_rx_ring(dev);
return IRQ_HANDLED;
}
/**
* mc32_close - user configuring the 3c527 down
* @dev: 3c527 card to shut down
*
* The 3c527 is a bus mastering device. We must be careful how we
* shut it down. It may also be running shared interrupt so we have
* to be sure to silence it properly
*
* We indicate that the card is closing to the rest of the
* driver. Otherwise, it is possible that the card may run out
* of receive buffers and restart the transceiver while we're
* trying to close it.
*
* We abort any receive and transmits going on and then wait until
* any pending exec commands have completed in other code threads.
* In theory we can't get here while that is true, in practice I am
* paranoid
*
* We turn off the interrupt enable for the board to be sure it can't
* intefere with other devices.
*/
static int mc32_close(struct net_device *dev)
{
struct mc32_local *lp = netdev_priv(dev);
int ioaddr = dev->base_addr;
u8 regs;
u16 one=1;
lp->xceiver_desired_state = HALTED;
netif_stop_queue(dev);
/*
* Send the indications on command (handy debug check)
*/
mc32_command(dev, 4, &one, 2);
/* Shut down the transceiver */
mc32_halt_transceiver(dev);
/* Ensure we issue no more commands beyond this point */
down(&lp->cmd_mutex);
/* Ok the card is now stopping */
regs=inb(ioaddr+HOST_CTRL);
regs&=~HOST_CTRL_INTE;
outb(regs, ioaddr+HOST_CTRL);
mc32_flush_rx_ring(dev);
mc32_flush_tx_ring(dev);
mc32_update_stats(dev);
return 0;
}
/**
* mc32_get_stats - hand back stats to network layer
* @dev: The 3c527 card to handle
*
* We've collected all the stats we can in software already. Now
* it's time to update those kept on-card and return the lot.
*
*/
static struct net_device_stats *mc32_get_stats(struct net_device *dev)
{
mc32_update_stats(dev);
return &dev->stats;
}
/**
* do_mc32_set_multicast_list - attempt to update multicasts
* @dev: 3c527 device to load the list on
* @retry: indicates this is not the first call.
*
*
* Actually set or clear the multicast filter for this adaptor. The
* locking issues are handled by this routine. We have to track
* state as it may take multiple calls to get the command sequence
* completed. We just keep trying to schedule the loads until we
* manage to process them all.
*
* num_addrs == -1 Promiscuous mode, receive all packets
*
* num_addrs == 0 Normal mode, clear multicast list
*
* num_addrs > 0 Multicast mode, receive normal and MC packets,
* and do best-effort filtering.
*
* See mc32_update_stats() regards setting the SAV BP bit.
*
*/
static void do_mc32_set_multicast_list(struct net_device *dev, int retry)
{
struct mc32_local *lp = netdev_priv(dev);
u16 filt = (1<<2); /* Save Bad Packets, for stats purposes */
if ((dev->flags&IFF_PROMISC) ||
(dev->flags&IFF_ALLMULTI) ||
netdev_mc_count(dev) > 10)
/* Enable promiscuous mode */
filt |= 1;
else if (!netdev_mc_empty(dev))
{
unsigned char block[62];
unsigned char *bp;
struct netdev_hw_addr *ha;
if(retry==0)
lp->mc_list_valid = 0;
if(!lp->mc_list_valid)
{
block[1]=0;
block[0]=netdev_mc_count(dev);
bp=block+2;
netdev_for_each_mc_addr(ha, dev) {
memcpy(bp, ha->addr, 6);
bp+=6;
}
if(mc32_command_nowait(dev, 2, block,
2+6*netdev_mc_count(dev))==-1)
{
lp->mc_reload_wait = 1;
return;
}
lp->mc_list_valid=1;
}
}
if(mc32_command_nowait(dev, 0, &filt, 2)==-1)
{
lp->mc_reload_wait = 1;
}
else {
lp->mc_reload_wait = 0;
}
}
/**
* mc32_set_multicast_list - queue multicast list update
* @dev: The 3c527 to use
*
* Commence loading the multicast list. This is called when the kernel
* changes the lists. It will override any pending list we are trying to
* load.
*/
static void mc32_set_multicast_list(struct net_device *dev)
{
do_mc32_set_multicast_list(dev,0);
}
/**
* mc32_reset_multicast_list - reset multicast list
* @dev: The 3c527 to use
*
* Attempt the next step in loading the multicast lists. If this attempt
* fails to complete then it will be scheduled and this function called
* again later from elsewhere.
*/
static void mc32_reset_multicast_list(struct net_device *dev)
{
do_mc32_set_multicast_list(dev,1);
}
static void netdev_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
strcpy(info->driver, DRV_NAME);
strcpy(info->version, DRV_VERSION);
sprintf(info->bus_info, "MCA 0x%lx", dev->base_addr);
}
static u32 netdev_get_msglevel(struct net_device *dev)
{
return mc32_debug;
}
static void netdev_set_msglevel(struct net_device *dev, u32 level)
{
mc32_debug = level;
}
static const struct ethtool_ops netdev_ethtool_ops = {
.get_drvinfo = netdev_get_drvinfo,
.get_msglevel = netdev_get_msglevel,
.set_msglevel = netdev_set_msglevel,
};
#ifdef MODULE
static struct net_device *this_device;
/**
* init_module - entry point
*
* Probe and locate a 3c527 card. This really should probe and locate
* all the 3c527 cards in the machine not just one of them. Yes you can
* insmod multiple modules for now but it's a hack.
*/
int __init init_module(void)
{
this_device = mc32_probe(-1);
if (IS_ERR(this_device))
return PTR_ERR(this_device);
return 0;
}
/**
* cleanup_module - free resources for an unload
*
* Unloading time. We release the MCA bus resources and the interrupt
* at which point everything is ready to unload. The card must be stopped
* at this point or we would not have been called. When we unload we
* leave the card stopped but not totally shut down. When the card is
* initialized it must be rebooted or the rings reloaded before any
* transmit operations are allowed to start scribbling into memory.
*/
void __exit cleanup_module(void)
{
unregister_netdev(this_device);
cleanup_card(this_device);
free_netdev(this_device);
}
#endif /* MODULE */
drivers/net/ethernet/i825xx/3c527.h deleted 100644 → 0
View file @ bc6a4744
/*
* 3COM "EtherLink MC/32" Descriptions
*/
/*
* Registers
*/
#define HOST_CMD 0
#define HOST_CMD_START_RX (1<<3)
#define HOST_CMD_SUSPND_RX (3<<3)
#define HOST_CMD_RESTRT_RX (5<<3)
#define HOST_CMD_SUSPND_TX 3
#define HOST_CMD_RESTRT_TX 5
#define HOST_STATUS 2
#define HOST_STATUS_CRR (1<<6)
#define HOST_STATUS_CWR (1<<5)
#define HOST_CTRL 6
#define HOST_CTRL_ATTN (1<<7)
#define HOST_CTRL_RESET (1<<6)
#define HOST_CTRL_INTE (1<<2)
#define HOST_RAMPAGE 8
#define HALTED 0
#define RUNNING 1
struct mc32_mailbox
{
u16 mbox;
u16 data[1];
} __packed;
struct skb_header
{
u8 status;
u8 control;
u16 next; /* Do not change! */
u16 length;
u32 data;
} __packed;
struct mc32_stats
{
/* RX Errors */
u32 rx_crc_errors;
u32 rx_alignment_errors;
u32 rx_overrun_errors;
u32 rx_tooshort_errors;
u32 rx_toolong_errors;
u32 rx_outofresource_errors;
u32 rx_discarded; /* via card pattern match filter */
/* TX Errors */
u32 tx_max_collisions;
u32 tx_carrier_errors;
u32 tx_underrun_errors;
u32 tx_cts_errors;
u32 tx_timeout_errors;
/* various cruft */
u32 dataA[6];
u16 dataB[5];
u32 dataC[14];
} __packed;
#define STATUS_MASK 0x0F
#define COMPLETED (1<<7)
#define COMPLETED_OK (1<<6)
#define BUFFER_BUSY (1<<5)
#define CONTROL_EOP (1<<7) /* End Of Packet */
#define CONTROL_EOL (1<<6) /* End of List */
#define MCA_MC32_ID 0x0041 /* Our MCA ident */
drivers/net/ethernet/i825xx/Kconfig
View file @ a5e371f6
......@@ -43,28 +43,6 @@ config EL16
To compile this driver as a module, choose M here. The module
will be called 3c507.
config ELMC
tristate "3c523 \"EtherLink/MC\" support"
depends on MCA_LEGACY
---help---
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
<http://www.tldp.org/docs.html#howto>.
To compile this driver as a module, choose M here. The module
will be called 3c523.
config ELMC_II
tristate "3c527 \"EtherLink/MC 32\" support (EXPERIMENTAL)"
depends on MCA && MCA_LEGACY
---help---
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
<http://www.tldp.org/docs.html#howto>.
To compile this driver as a module, choose M here. The module
will be called 3c527.
config ARM_ETHER1
tristate "Acorn Ether1 support"
depends on ARM && ARCH_ACORN
......
drivers/net/ethernet/i825xx/Makefile
View file @ a5e371f6
......@@ -7,8 +7,6 @@ obj-$(CONFIG_EEXPRESS) += eexpress.o
obj-$(CONFIG_EEXPRESS_PRO) += eepro.o
obj-$(CONFIG_ELPLUS) += 3c505.o
obj-$(CONFIG_EL16) += 3c507.o
obj-$(CONFIG_ELMC) += 3c523.o
obj-$(CONFIG_ELMC_II) += 3c527.o
obj-$(CONFIG_LP486E) += lp486e.o
obj-$(CONFIG_NI52) += ni52.o
obj-$(CONFIG_SUN3_82586) += sun3_82586.o
......
drivers/net/ethernet/i825xx/eexpress.c
View file @ a5e371f6
......@@ -9,7 +9,7 @@
* Many modifications, and currently maintained, by
* Philip Blundell <philb@gnu.org>
* Added the Compaq LTE Alan Cox <alan@lxorguk.ukuu.org.uk>
* Added MCA support Adam Fritzler
* Added MCA support Adam Fritzler (now deleted)
*
* Note - this driver is experimental still - it has problems on faster
* machines. Someone needs to sit down and go through it line by line with
......@@ -111,7 +111,6 @@
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/mca-legacy.h>
#include <linux/spinlock.h>
#include <linux/bitops.h>
#include <linux/jiffies.h>
......@@ -227,16 +226,6 @@ static unsigned short start_code[] = {
/* maps irq number to EtherExpress magic value */
static char irqrmap[] = { 0,0,1,2,3,4,0,0,0,1,5,6,0,0,0,0 };
#ifdef CONFIG_MCA_LEGACY
/* mapping of the first four bits of the second POS register */
static unsigned short mca_iomap[] = {
0x270, 0x260, 0x250, 0x240, 0x230, 0x220, 0x210, 0x200,
0x370, 0x360, 0x350, 0x340, 0x330, 0x320, 0x310, 0x300
};
/* bits 5-7 of the second POS register */
static char mca_irqmap[] = { 12, 9, 3, 4, 5, 10, 11, 15 };
#endif
/*
* Prototypes for Linux interface
*/
......@@ -340,53 +329,6 @@ static int __init do_express_probe(struct net_device *dev)
dev->if_port = 0xff; /* not set */
#ifdef CONFIG_MCA_LEGACY
if (MCA_bus) {
int slot = 0;
/*
* Only find one card at a time. Subsequent calls
* will find others, however, proper multicard MCA
* probing and setup can't be done with the
* old-style Space.c init routines. -- ASF
*/
while (slot != MCA_NOTFOUND) {
int pos0, pos1;
slot = mca_find_unused_adapter(0x628B, slot);
if (slot == MCA_NOTFOUND)
break;
pos0 = mca_read_stored_pos(slot, 2);
pos1 = mca_read_stored_pos(slot, 3);
ioaddr = mca_iomap[pos1&0xf];
dev->irq = mca_irqmap[(pos1>>4)&0x7];
/*
* XXX: Transceiver selection is done
* differently on the MCA version.
* How to get it to select something
* other than external/AUI is currently
* unknown. This code is just for looks. -- ASF
*/
if ((pos0 & 0x7) == 0x1)
dev->if_port = AUI;
else if ((pos0 & 0x7) == 0x5) {
if (pos1 & 0x80)
dev->if_port = BNC;
else
dev->if_port = TPE;
}
mca_set_adapter_name(slot, "Intel EtherExpress 16 MCA");
mca_set_adapter_procfn(slot, NULL, dev);
mca_mark_as_used(slot);
break;
}
}
#endif
if (ioaddr&0xfe00) {
if (!request_region(ioaddr, EEXP_IO_EXTENT, "EtherExpress"))
return -EBUSY;
......
drivers/net/ethernet/natsemi/Kconfig
View file @ a5e371f6
......@@ -6,9 +6,8 @@ config NET_VENDOR_NATSEMI
bool "National Semi-conductor devices"
default y
depends on AMIGA_PCMCIA || ARM || EISA || EXPERIMENTAL || H8300 || \
ISA || M32R || MAC || MACH_JAZZ || MACH_TX49XX || MCA || \
MCA_LEGACY || MIPS || PCI || PCMCIA || SUPERH || \
XTENSA_PLATFORM_XT2000 || ZORRO
ISA || M32R || MAC || MACH_JAZZ || MACH_TX49XX || MIPS || \
PCI || PCMCIA || SUPERH || XTENSA_PLATFORM_XT2000 || ZORRO
---help---
If you have a network (Ethernet) card belonging to this class, say Y
and read the Ethernet-HOWTO, available from
......@@ -21,21 +20,6 @@ config NET_VENDOR_NATSEMI
if NET_VENDOR_NATSEMI
config IBMLANA
tristate "IBM LAN Adapter/A support"
depends on MCA
---help---
This is a Micro Channel Ethernet adapter. You need to set
CONFIG_MCA to use this driver. It is both available as an in-kernel
driver and as a module.
To compile this driver as a module, choose M here. The only
currently supported card is the IBM LAN Adapter/A for Ethernet. It
will both support 16K and 32K memory windows, however a 32K window
gives a better security against packet losses. Usage of multiple
boards with this driver should be possible, but has not been tested
up to now due to lack of hardware.
config MACSONIC
tristate "Macintosh SONIC based ethernet (onboard, NuBus, LC, CS)"
depends on MAC
......
drivers/net/ethernet/natsemi/Makefile
View file @ a5e371f6
......@@ -2,7 +2,6 @@
# Makefile for the National Semi-conductor Sonic devices.
#
obj-$(CONFIG_IBMLANA) += ibmlana.o
obj-$(CONFIG_MACSONIC) += macsonic.o
obj-$(CONFIG_MIPS_JAZZ_SONIC) += jazzsonic.o
obj-$(CONFIG_NATSEMI) += natsemi.o
......
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