+++ /dev/null
-/* 3c509.c: A 3c509 EtherLink3 ethernet driver for linux. */
-/*
- Written 1993-2000 by Donald Becker.
-
- Copyright 1994-2000 by Donald Becker.
- Copyright 1993 United States Government as represented by the
- Director, National Security Agency. This software may be used and
- distributed according to the terms of the GNU General Public License,
- incorporated herein by reference.
-
- This driver is for the 3Com EtherLinkIII series.
-
- The author may be reached as becker@scyld.com, or C/O
- Scyld Computing Corporation
- 410 Severn Ave., Suite 210
- Annapolis MD 21403
-
- Known limitations:
- Because of the way 3c509 ISA detection works it's difficult to predict
- a priori which of several ISA-mode cards will be detected first.
-
- This driver does not use predictive interrupt mode, resulting in higher
- packet latency but lower overhead. If interrupts are disabled for an
- unusually long time it could also result in missed packets, but in
- practice this rarely happens.
-
-
- FIXES:
- Alan Cox: Removed the 'Unexpected interrupt' bug.
- Michael Meskes: Upgraded to Donald Becker's version 1.07.
- Alan Cox: Increased the eeprom delay. Regardless of
- what the docs say some people definitely
- get problems with lower (but in card spec)
- delays
- v1.10 4/21/97 Fixed module code so that multiple cards may be detected,
- other cleanups. -djb
- Andrea Arcangeli: Upgraded to Donald Becker's version 1.12.
- Rick Payne: Fixed SMP race condition
- v1.13 9/8/97 Made 'max_interrupt_work' an insmod-settable variable -djb
- v1.14 10/15/97 Avoided waiting..discard message for fast machines -djb
- v1.15 1/31/98 Faster recovery for Tx errors. -djb
- v1.16 2/3/98 Different ID port handling to avoid sound cards. -djb
- v1.18 12Mar2001 Andrew Morton <andrewm@uow.edu.au>
- - Avoid bogus detect of 3c590's (Andrzej Krzysztofowicz)
- - Reviewed against 1.18 from scyld.com
-*/
-
-/* A few values that may be tweaked. */
-
-/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT (400*HZ/1000)
-/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
-static int max_interrupt_work = 10;
-
-#include <linux/config.h>
-#include <linux/module.h>
-
-//#include <linux/mca.h>
-//#include <linux/isapnp.h>
-#include <linux/sched.h>
-//#include <linux/string.h>
-#include <linux/lib.h>
-#include <linux/interrupt.h>
-#include <linux/errno.h>
-//#include <linux/in.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/delay.h> /* for udelay() */
-#include <linux/spinlock.h>
-
-#include <asm/bitops.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-
-static char versionA[] __initdata = "3c509.c:1.18 12Mar2001 becker@scyld.com\n";
-static char versionB[] __initdata = "http://www.scyld.com/network/3c509.html\n";
-
-#ifdef EL3_DEBUG
-static int el3_debug = EL3_DEBUG;
-#else
-static int el3_debug = 2;
-#endif
-
-/* To minimize the size of the driver source I only define operating
- constants if they are used several times. You'll need the manual
- anyway if you want to understand driver details. */
-/* Offsets from base I/O address. */
-#define EL3_DATA 0x00
-#define EL3_CMD 0x0e
-#define EL3_STATUS 0x0e
-#define EEPROM_READ 0x80
-
-#define EL3_IO_EXTENT 16
-
-#define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
-
-
-/* The top five bits written to EL3_CMD are a command, the lower
- 11 bits are the parameter, if applicable. */
-enum c509cmd {
- TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
- RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, RxDiscard = 8<<11,
- TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
- FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
- SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
- SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11,
- StatsDisable = 22<<11, StopCoax = 23<<11,};
-
-enum c509status {
- IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004,
- TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
- IntReq = 0x0040, StatsFull = 0x0080, CmdBusy = 0x1000, };
-
-/* The SetRxFilter command accepts the following classes: */
-enum RxFilter {
- RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 };
-
-/* Register window 1 offsets, the window used in normal operation. */
-#define TX_FIFO 0x00
-#define RX_FIFO 0x00
-#define RX_STATUS 0x08
-#define TX_STATUS 0x0B
-#define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */
-
-#define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */
-#define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */
-#define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */
-
-/*
- * Must be a power of two (we use a binary and in the
- * circular queue)
- */
-#define SKB_QUEUE_SIZE 64
-
-struct el3_private {
- struct net_device_stats stats;
- struct net_device *next_dev;
- spinlock_t lock;
- /* skb send-queue */
- int head, size;
- struct sk_buff *queue[SKB_QUEUE_SIZE];
- char mca_slot;
-};
-static int id_port __initdata = 0x110; /* Start with 0x110 to avoid new sound cards.*/
-static struct net_device *el3_root_dev;
-
-static ushort id_read_eeprom(int index);
-static ushort read_eeprom(int ioaddr, int index);
-static int el3_open(struct net_device *dev);
-static int el3_start_xmit(struct sk_buff *skb, struct net_device *dev);
-static void el3_interrupt(int irq, void *dev_id, struct pt_regs *regs);
-static void update_stats(struct net_device *dev);
-static struct net_device_stats *el3_get_stats(struct net_device *dev);
-static int el3_rx(struct net_device *dev);
-static int el3_close(struct net_device *dev);
-static void set_multicast_list(struct net_device *dev);
-static void el3_tx_timeout (struct net_device *dev);
-
-#ifdef CONFIG_MCA
-struct el3_mca_adapters_struct {
- char* name;
- int id;
-};
-
-static struct el3_mca_adapters_struct el3_mca_adapters[] __initdata = {
- { "3Com 3c529 EtherLink III (10base2)", 0x627c },
- { "3Com 3c529 EtherLink III (10baseT)", 0x627d },
- { "3Com 3c529 EtherLink III (test mode)", 0x62db },
- { "3Com 3c529 EtherLink III (TP or coax)", 0x62f6 },
- { "3Com 3c529 EtherLink III (TP)", 0x62f7 },
- { NULL, 0 },
-};
-#endif /* CONFIG_MCA */
-
-#if defined(CONFIG_ISAPNP) || defined(CONFIG_ISAPNP_MODULE)
-static struct isapnp_device_id el3_isapnp_adapters[] __initdata = {
- { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
- ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5090),
- (long) "3Com Etherlink III (TP)" },
- { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
- ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5091),
- (long) "3Com Etherlink III" },
- { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
- ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5094),
- (long) "3Com Etherlink III (combo)" },
- { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
- ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5095),
- (long) "3Com Etherlink III (TPO)" },
- { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
- ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5098),
- (long) "3Com Etherlink III (TPC)" },
- { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
- ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f7),
- (long) "3Com Etherlink III compatible" },
- { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
- ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f8),
- (long) "3Com Etherlink III compatible" },
- { } /* terminate list */
-};
-
-MODULE_DEVICE_TABLE(isapnp, el3_isapnp_adapters);
-MODULE_LICENSE("GPL");
-
-
-static u16 el3_isapnp_phys_addr[8][3];
-static int nopnp;
-#endif /* CONFIG_ISAPNP || CONFIG_ISAPNP_MODULE */
-
-int __init el3_probe(struct net_device *dev)
-{
- struct el3_private *lp;
- short lrs_state = 0xff, i;
- int ioaddr, irq, if_port;
- u16 phys_addr[3];
- static int current_tag;
- int mca_slot = -1;
-#if defined(CONFIG_ISAPNP) || defined(CONFIG_ISAPNP_MODULE)
- static int pnp_cards;
-#endif /* CONFIG_ISAPNP || CONFIG_ISAPNP_MODULE */
-
- if (dev) SET_MODULE_OWNER(dev);
-
- /* First check all slots of the EISA bus. The next slot address to
- probe is kept in 'eisa_addr' to support multiple probe() calls. */
- if (EISA_bus) {
- static int eisa_addr = 0x1000;
- while (eisa_addr < 0x9000) {
- int device_id;
-
- ioaddr = eisa_addr;
- eisa_addr += 0x1000;
-
- /* Check the standard EISA ID register for an encoded '3Com'. */
- if (inw(ioaddr + 0xC80) != 0x6d50)
- continue;
-
- /* Avoid conflict with 3c590, 3c592, 3c597, etc */
- device_id = (inb(ioaddr + 0xC82)<<8) + inb(ioaddr + 0xC83);
- if ((device_id & 0xFF00) == 0x5900) {
- continue;
- }
-
- /* Change the register set to the configuration window 0. */
- outw(SelectWindow | 0, ioaddr + 0xC80 + EL3_CMD);
-
- irq = inw(ioaddr + WN0_IRQ) >> 12;
- if_port = inw(ioaddr + 6)>>14;
- for (i = 0; i < 3; i++)
- phys_addr[i] = htons(read_eeprom(ioaddr, i));
-
- /* Restore the "Product ID" to the EEPROM read register. */
- read_eeprom(ioaddr, 3);
-
- /* Was the EISA code an add-on hack? Nahhhhh... */
- goto found;
- }
- }
-
-#ifdef CONFIG_MCA
- /* 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 slot, j;
- u_char pos4, pos5;
-
- for( j = 0; el3_mca_adapters[j].name != NULL; j ++ ) {
- slot = 0;
- while( slot != MCA_NOTFOUND ) {
- slot = mca_find_unused_adapter(
- el3_mca_adapters[j].id, slot );
- if( slot == MCA_NOTFOUND ) break;
-
- /* if we get this far, an adapter has been
- * detected and is enabled
- */
-
- pos4 = mca_read_stored_pos( slot, 4 );
- pos5 = mca_read_stored_pos( slot, 5 );
-
- ioaddr = ((short)((pos4&0xfc)|0x02)) << 8;
- irq = pos5 & 0x0f;
-
- /* probing for a card at a particular IO/IRQ */
- if(dev && ((dev->irq >= 1 && dev->irq != irq) ||
- (dev->base_addr >= 1 && dev->base_addr != ioaddr))) {
- slot++; /* probing next slot */
- continue;
- }
-
- printk("3c509: found %s at slot %d\n",
- el3_mca_adapters[j].name, slot + 1 );
-
- /* claim the slot */
- mca_set_adapter_name(slot, el3_mca_adapters[j].name);
- mca_set_adapter_procfn(slot, NULL, NULL);
- mca_mark_as_used(slot);
-
- if_port = pos4 & 0x03;
- if (el3_debug > 2) {
- printk("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));
- }
-
- mca_slot = slot;
-
- goto found;
- }
- }
- /* if we get here, we didn't find an MCA adapter */
- return -ENODEV;
- }
-#endif /* CONFIG_MCA */
-
-#if defined(CONFIG_ISAPNP) || defined(CONFIG_ISAPNP_MODULE)
- if (nopnp == 1)
- goto no_pnp;
-
- for (i=0; el3_isapnp_adapters[i].vendor != 0; i++) {
- struct pci_dev *idev = NULL;
- int j;
- while ((idev = isapnp_find_dev(NULL,
- el3_isapnp_adapters[i].vendor,
- el3_isapnp_adapters[i].function,
- idev))) {
- idev->prepare(idev);
- /* Deactivation is needed if the driver was called
- with "nopnp=1" before, does not harm if not. */
- idev->deactivate(idev);
- idev->activate(idev);
- if (!idev->resource[0].start || check_region(idev->resource[0].start, EL3_IO_EXTENT))
- continue;
- ioaddr = idev->resource[0].start;
- if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509 PnP"))
- return -EBUSY;
- irq = idev->irq_resource[0].start;
- if (el3_debug > 3)
- printk ("ISAPnP reports %s at i/o 0x%x, irq %d\n",
- (char*) el3_isapnp_adapters[i].driver_data, ioaddr, irq);
- EL3WINDOW(0);
- for (j = 0; j < 3; j++)
- el3_isapnp_phys_addr[pnp_cards][j] =
- phys_addr[j] =
- htons(read_eeprom(ioaddr, j));
- if_port = read_eeprom(ioaddr, 8) >> 14;
- pnp_cards++;
- goto found;
- }
- }
-no_pnp:
-#endif /* CONFIG_ISAPNP || CONFIG_ISAPNP_MODULE */
-
- /* Select an open I/O location at 0x1*0 to do contention select. */
- for ( ; id_port < 0x200; id_port += 0x10) {
- if (check_region(id_port, 1))
- continue;
- outb(0x00, id_port);
- outb(0xff, id_port);
- if (inb(id_port) & 0x01)
- break;
- }
- if (id_port >= 0x200) {
- /* Rare -- do we really need a warning? */
- printk(" WARNING: No I/O port available for 3c509 activation.\n");
- return -ENODEV;
- }
- /* Next check for all ISA bus boards by sending the ID sequence to the
- ID_PORT. We find cards past the first by setting the 'current_tag'
- on cards as they are found. Cards with their tag set will not
- respond to subsequent ID sequences. */
-
- outb(0x00, id_port);
- outb(0x00, id_port);
- for(i = 0; i < 255; i++) {
- outb(lrs_state, id_port);
- lrs_state <<= 1;
- lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state;
- }
-
- /* For the first probe, clear all board's tag registers. */
- if (current_tag == 0)
- outb(0xd0, id_port);
- else /* Otherwise kill off already-found boards. */
- outb(0xd8, id_port);
-
- if (id_read_eeprom(7) != 0x6d50) {
- return -ENODEV;
- }
-
- /* Read in EEPROM data, which does contention-select.
- Only the lowest address board will stay "on-line".
- 3Com got the byte order backwards. */
- for (i = 0; i < 3; i++) {
- phys_addr[i] = htons(id_read_eeprom(i));
- }
-
-#if defined(CONFIG_ISAPNP) || defined(CONFIG_ISAPNP_MODULE)
- if (nopnp == 0) {
- /* The ISA PnP 3c509 cards respond to the ID sequence.
- This check is needed in order not to register them twice. */
- for (i = 0; i < pnp_cards; i++) {
- if (phys_addr[0] == el3_isapnp_phys_addr[i][0] &&
- phys_addr[1] == el3_isapnp_phys_addr[i][1] &&
- phys_addr[2] == el3_isapnp_phys_addr[i][2])
- {
- if (el3_debug > 3)
- printk("3c509 with address %02x %02x %02x %02x %02x %02x was found by ISAPnP\n",
- phys_addr[0] & 0xff, phys_addr[0] >> 8,
- phys_addr[1] & 0xff, phys_addr[1] >> 8,
- phys_addr[2] & 0xff, phys_addr[2] >> 8);
- /* Set the adaptor tag so that the next card can be found. */
- outb(0xd0 + ++current_tag, id_port);
- goto no_pnp;
- }
- }
- }
-#endif /* CONFIG_ISAPNP || CONFIG_ISAPNP_MODULE */
-
- {
- unsigned int iobase = id_read_eeprom(8);
- if_port = iobase >> 14;
- ioaddr = 0x200 + ((iobase & 0x1f) << 4);
- }
- irq = id_read_eeprom(9) >> 12;
-
- if (dev) { /* Set passed-in IRQ or I/O Addr. */
- if (dev->irq > 1 && dev->irq < 16)
- irq = dev->irq;
-
- if (dev->base_addr) {
- if (dev->mem_end == 0x3c509 /* Magic key */
- && dev->base_addr >= 0x200 && dev->base_addr <= 0x3e0)
- ioaddr = dev->base_addr & 0x3f0;
- else if (dev->base_addr != ioaddr)
- return -ENODEV;
- }
- }
-
- if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509"))
- return -EBUSY;
-
- /* Set the adaptor tag so that the next card can be found. */
- outb(0xd0 + ++current_tag, id_port);
-
- /* Activate the adaptor at the EEPROM location. */
- outb((ioaddr >> 4) | 0xe0, id_port);
-
- EL3WINDOW(0);
- if (inw(ioaddr) != 0x6d50) {
- release_region(ioaddr, EL3_IO_EXTENT);
- return -ENODEV;
- }
-
- /* Free the interrupt so that some other card can use it. */
- outw(0x0f00, ioaddr + WN0_IRQ);
- found:
- if (dev == NULL) {
- dev = init_etherdev(dev, sizeof(struct el3_private));
- if (dev == NULL) {
- release_region(ioaddr, EL3_IO_EXTENT);
- return -ENOMEM;
- }
- SET_MODULE_OWNER(dev);
- }
- memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
- dev->base_addr = ioaddr;
- dev->irq = irq;
- dev->if_port = (dev->mem_start & 0x1f) ? dev->mem_start & 3 : if_port;
-
- {
- const char *if_names[] = {"10baseT", "AUI", "undefined", "BNC"};
- printk("%s: 3c5x9 at %#3.3lx, %s port, address ",
- dev->name, dev->base_addr, if_names[dev->if_port]);
- }
-
- /* Read in the station address. */
- for (i = 0; i < 6; i++)
- printk(" %2.2x", dev->dev_addr[i]);
- printk(", IRQ %d.\n", dev->irq);
-
- /* Make up a EL3-specific-data structure. */
- if (dev->priv == NULL)
- dev->priv = kmalloc(sizeof(struct el3_private), GFP_KERNEL);
- if (dev->priv == NULL)
- return -ENOMEM;
- memset(dev->priv, 0, sizeof(struct el3_private));
-
- lp = dev->priv;
- lp->mca_slot = mca_slot;
- lp->next_dev = el3_root_dev;
- spin_lock_init(&lp->lock);
- el3_root_dev = dev;
-
- if (el3_debug > 0)
- printk(KERN_INFO "%s" KERN_INFO "%s", versionA, versionB);
-
- /* The EL3-specific entries in the device structure. */
- dev->open = &el3_open;
- dev->hard_start_xmit = &el3_start_xmit;
- dev->stop = &el3_close;
- dev->get_stats = &el3_get_stats;
- dev->set_multicast_list = &set_multicast_list;
- dev->tx_timeout = el3_tx_timeout;
- dev->watchdog_timeo = TX_TIMEOUT;
-
- /* Fill in the generic fields of the device structure. */
- ether_setup(dev);
- return 0;
-}
-
-/* Read a word from the EEPROM using the regular EEPROM access register.
- Assume that we are in register window zero.
- */
-static ushort __init read_eeprom(int ioaddr, int index)
-{
- outw(EEPROM_READ + index, ioaddr + 10);
- /* Pause for at least 162 us. for the read to take place. */
- udelay (500);
- return inw(ioaddr + 12);
-}
-
-/* Read a word from the EEPROM when in the ISA ID probe state. */
-static ushort __init id_read_eeprom(int index)
-{
- int bit, word = 0;
-
- /* Issue read command, and pause for at least 162 us. for it to complete.
- Assume extra-fast 16Mhz bus. */
- outb(EEPROM_READ + index, id_port);
-
- /* Pause for at least 162 us. for the read to take place. */
- udelay (500);
-
- for (bit = 15; bit >= 0; bit--)
- word = (word << 1) + (inb(id_port) & 0x01);
-
- if (el3_debug > 3)
- printk(" 3c509 EEPROM word %d %#4.4x.\n", index, word);
-
- return word;
-}
-
-
-static int
-el3_open(struct net_device *dev)
-{
- int ioaddr = dev->base_addr;
- int i;
-
- outw(TxReset, ioaddr + EL3_CMD);
- outw(RxReset, ioaddr + EL3_CMD);
- outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
-
- i = request_irq(dev->irq, &el3_interrupt, 0, dev->name, dev);
- if (i) return i;
-
- EL3WINDOW(0);
- if (el3_debug > 3)
- printk("%s: Opening, IRQ %d status@%x %4.4x.\n", dev->name,
- dev->irq, ioaddr + EL3_STATUS, inw(ioaddr + EL3_STATUS));
-
- /* Activate board: this is probably unnecessary. */
- outw(0x0001, ioaddr + 4);
-
- /* Set the IRQ line. */
- outw((dev->irq << 12) | 0x0f00, ioaddr + WN0_IRQ);
-
- /* Set the station address in window 2 each time opened. */
- EL3WINDOW(2);
-
- for (i = 0; i < 6; i++)
- outb(dev->dev_addr[i], ioaddr + i);
-
- if (dev->if_port == 3)
- /* Start the thinnet transceiver. We should really wait 50ms...*/
- outw(StartCoax, ioaddr + EL3_CMD);
- else if (dev->if_port == 0) {
- /* 10baseT interface, enabled link beat and jabber check. */
- EL3WINDOW(4);
- outw(inw(ioaddr + WN4_MEDIA) | MEDIA_TP, ioaddr + WN4_MEDIA);
- }
-
- /* Switch to the stats window, and clear all stats by reading. */
- outw(StatsDisable, ioaddr + EL3_CMD);
- EL3WINDOW(6);
- for (i = 0; i < 9; i++)
- inb(ioaddr + i);
- inw(ioaddr + 10);
- inw(ioaddr + 12);
-
- /* Switch to register set 1 for normal use. */
- EL3WINDOW(1);
-
- /* Accept b-case and phys addr only. */
- outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
- outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
-
- netif_start_queue(dev);
-
- outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
- outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
- /* Allow status bits to be seen. */
- outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
- /* Ack all pending events, and set active indicator mask. */
- outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
- ioaddr + EL3_CMD);
- outw(SetIntrEnb | IntLatch|TxAvailable|TxComplete|RxComplete|StatsFull,
- ioaddr + EL3_CMD);
-
- if (el3_debug > 3)
- printk("%s: Opened 3c509 IRQ %d status %4.4x.\n",
- dev->name, dev->irq, inw(ioaddr + EL3_STATUS));
-
- return 0;
-}
-
-static void
-el3_tx_timeout (struct net_device *dev)
-{
- struct el3_private *lp = (struct el3_private *)dev->priv;
- int ioaddr = dev->base_addr;
-
- /* Transmitter timeout, serious problems. */
- printk("%s: transmit timed out, Tx_status %2.2x status %4.4x "
- "Tx FIFO room %d.\n",
- dev->name, inb(ioaddr + TX_STATUS), inw(ioaddr + EL3_STATUS),
- inw(ioaddr + TX_FREE));
- lp->stats.tx_errors++;
- dev->trans_start = jiffies;
- /* Issue TX_RESET and TX_START commands. */
- outw(TxReset, ioaddr + EL3_CMD);
- outw(TxEnable, ioaddr + EL3_CMD);
- netif_wake_queue(dev);
-}
-
-
-static int
-el3_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct el3_private *lp = (struct el3_private *)dev->priv;
- int ioaddr = dev->base_addr;
- unsigned long flags;
-
- netif_stop_queue (dev);
-
- lp->stats.tx_bytes += skb->len;
-
- if (el3_debug > 4) {
- printk("%s: el3_start_xmit(length = %u) called, status %4.4x.\n",
- dev->name, skb->len, inw(ioaddr + EL3_STATUS));
- }
-#if 0
-#ifndef final_version
- { /* Error-checking code, delete someday. */
- ushort status = inw(ioaddr + EL3_STATUS);
- if (status & 0x0001 /* IRQ line active, missed one. */
- && inw(ioaddr + EL3_STATUS) & 1) { /* Make sure. */
- printk("%s: Missed interrupt, status then %04x now %04x"
- " Tx %2.2x Rx %4.4x.\n", dev->name, status,
- inw(ioaddr + EL3_STATUS), inb(ioaddr + TX_STATUS),
- inw(ioaddr + RX_STATUS));
- /* Fake interrupt trigger by masking, acknowledge interrupts. */
- outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
- outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
- ioaddr + EL3_CMD);
- outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
- }
- }
-#endif
-#endif
- /*
- * We lock the driver against other processors. Note
- * we don't need to lock versus the IRQ as we suspended
- * that. This means that we lose the ability to take
- * an RX during a TX upload. That sucks a bit with SMP
- * on an original 3c509 (2K buffer)
- *
- * Using disable_irq stops us crapping on other
- * time sensitive devices.
- */
-
- spin_lock_irqsave(&lp->lock, flags);
-
- /* Put out the doubleword header... */
- outw(skb->len, ioaddr + TX_FIFO);
- outw(0x00, ioaddr + TX_FIFO);
- /* ... and the packet rounded to a doubleword. */
-#ifdef __powerpc__
- outsl_unswapped(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
-#else
- outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
-#endif
-
- dev->trans_start = jiffies;
- if (inw(ioaddr + TX_FREE) > 1536)
- netif_start_queue(dev);
- else
- /* Interrupt us when the FIFO has room for max-sized packet. */
- outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
-
- spin_unlock_irqrestore(&lp->lock, flags);
-
- dev_kfree_skb (skb);
-
- /* Clear the Tx status stack. */
- {
- short tx_status;
- int i = 4;
-
- while (--i > 0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) {
- if (tx_status & 0x38) lp->stats.tx_aborted_errors++;
- if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD);
- if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD);
- outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
- }
- }
- return 0;
-}
-
-/* The EL3 interrupt handler. */
-static void
-el3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct net_device *dev = (struct net_device *)dev_id;
- struct el3_private *lp;
- int ioaddr, status;
- int i = max_interrupt_work;
-
- if (dev == NULL) {
- printk ("el3_interrupt(): irq %d for unknown device.\n", irq);
- return;
- }
-
- lp = (struct el3_private *)dev->priv;
- spin_lock(&lp->lock);
-
- ioaddr = dev->base_addr;
-
- if (el3_debug > 4) {
- status = inw(ioaddr + EL3_STATUS);
- printk("%s: interrupt, status %4.4x.\n", dev->name, status);
- }
-
- while ((status = inw(ioaddr + EL3_STATUS)) &
- (IntLatch | RxComplete | StatsFull)) {
-
- if (status & RxComplete)
- el3_rx(dev);
-
- if (status & TxAvailable) {
- if (el3_debug > 5)
- printk(" TX room bit was handled.\n");
- /* There's room in the FIFO for a full-sized packet. */
- outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
- netif_wake_queue (dev);
- }
- if (status & (AdapterFailure | RxEarly | StatsFull | TxComplete)) {
- /* Handle all uncommon interrupts. */
- if (status & StatsFull) /* Empty statistics. */
- update_stats(dev);
- if (status & RxEarly) { /* Rx early is unused. */
- el3_rx(dev);
- outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
- }
- if (status & TxComplete) { /* Really Tx error. */
- struct el3_private *lp = (struct el3_private *)dev->priv;
- short tx_status;
- int i = 4;
-
- while (--i>0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) {
- if (tx_status & 0x38) lp->stats.tx_aborted_errors++;
- if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD);
- if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD);
- outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
- }
- }
- if (status & AdapterFailure) {
- /* Adapter failure requires Rx reset and reinit. */
- outw(RxReset, ioaddr + EL3_CMD);
- /* Set the Rx filter to the current state. */
- outw(SetRxFilter | RxStation | RxBroadcast
- | (dev->flags & IFF_ALLMULTI ? RxMulticast : 0)
- | (dev->flags & IFF_PROMISC ? RxProm : 0),
- ioaddr + EL3_CMD);
- outw(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
- outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
- }
- }
-
- if (--i < 0) {
- printk("%s: Infinite loop in interrupt, status %4.4x.\n",
- dev->name, status);
- /* Clear all interrupts. */
- outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
- break;
- }
- /* Acknowledge the IRQ. */
- outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); /* Ack IRQ */
- }
-
- if (el3_debug > 4) {
- printk("%s: exiting interrupt, status %4.4x.\n", dev->name,
- inw(ioaddr + EL3_STATUS));
- }
- spin_unlock(&lp->lock);
- return;
-}
-
-
-static struct net_device_stats *
-el3_get_stats(struct net_device *dev)
-{
- struct el3_private *lp = (struct el3_private *)dev->priv;
- unsigned long flags;
-
- /*
- * This is fast enough not to bother with disable IRQ
- * stuff.
- */
-
- spin_lock_irqsave(&lp->lock, flags);
- update_stats(dev);
- spin_unlock_irqrestore(&lp->lock, flags);
- return &lp->stats;
-}
-
-/* Update statistics. We change to register window 6, so this should be run
- single-threaded if the device is active. This is expected to be a rare
- operation, and it's simpler for the rest of the driver to assume that
- window 1 is always valid rather than use a special window-state variable.
- */
-static void update_stats(struct net_device *dev)
-{
- struct el3_private *lp = (struct el3_private *)dev->priv;
- int ioaddr = dev->base_addr;
-
- if (el3_debug > 5)
- printk(" Updating the statistics.\n");
- /* Turn off statistics updates while reading. */
- outw(StatsDisable, ioaddr + EL3_CMD);
- /* Switch to the stats window, and read everything. */
- EL3WINDOW(6);
- lp->stats.tx_carrier_errors += inb(ioaddr + 0);
- lp->stats.tx_heartbeat_errors += inb(ioaddr + 1);
- /* Multiple collisions. */ inb(ioaddr + 2);
- lp->stats.collisions += inb(ioaddr + 3);
- lp->stats.tx_window_errors += inb(ioaddr + 4);
- lp->stats.rx_fifo_errors += inb(ioaddr + 5);
- lp->stats.tx_packets += inb(ioaddr + 6);
- /* Rx packets */ inb(ioaddr + 7);
- /* Tx deferrals */ inb(ioaddr + 8);
- inw(ioaddr + 10); /* Total Rx and Tx octets. */
- inw(ioaddr + 12);
-
- /* Back to window 1, and turn statistics back on. */
- EL3WINDOW(1);
- outw(StatsEnable, ioaddr + EL3_CMD);
- return;
-}
-
-static int
-el3_rx(struct net_device *dev)
-{
- struct el3_private *lp = (struct el3_private *)dev->priv;
- int ioaddr = dev->base_addr;
- short rx_status;
-
- if (el3_debug > 5)
- printk(" In rx_packet(), status %4.4x, rx_status %4.4x.\n",
- inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
- while ((rx_status = inw(ioaddr + RX_STATUS)) > 0) {
- if (rx_status & 0x4000) { /* Error, update stats. */
- short error = rx_status & 0x3800;
-
- outw(RxDiscard, ioaddr + EL3_CMD);
- lp->stats.rx_errors++;
- switch (error) {
- case 0x0000: lp->stats.rx_over_errors++; break;
- case 0x0800: lp->stats.rx_length_errors++; break;
- case 0x1000: lp->stats.rx_frame_errors++; break;
- case 0x1800: lp->stats.rx_length_errors++; break;
- case 0x2000: lp->stats.rx_frame_errors++; break;
- case 0x2800: lp->stats.rx_crc_errors++; break;
- }
- } else {
- short pkt_len = rx_status & 0x7ff;
- struct sk_buff *skb;
-
- skb = dev_alloc_skb(pkt_len+5);
- lp->stats.rx_bytes += pkt_len;
- if (el3_debug > 4)
- printk("Receiving packet size %d status %4.4x.\n",
- pkt_len, rx_status);
- if (skb != NULL) {
- skb->dev = dev;
- skb_reserve(skb, 2); /* Align IP on 16 byte */
-
- /* 'skb->data' points to the start of sk_buff data area. */
-#ifdef __powerpc__
- insl_unswapped(ioaddr+RX_FIFO, skb_put(skb,pkt_len),
- (pkt_len + 3) >> 2);
-#else
- insl(ioaddr + RX_FIFO, skb_put(skb,pkt_len),
- (pkt_len + 3) >> 2);
-#endif
-
- outw(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
- skb->protocol = eth_type_trans(skb,dev);
- netif_rx(skb);
- dev->last_rx = jiffies;
- lp->stats.rx_packets++;
- continue;
- }
- outw(RxDiscard, ioaddr + EL3_CMD);
- lp->stats.rx_dropped++;
- if (el3_debug)
- printk("%s: Couldn't allocate a sk_buff of size %d.\n",
- dev->name, pkt_len);
- }
- inw(ioaddr + EL3_STATUS); /* Delay. */
- while (inw(ioaddr + EL3_STATUS) & 0x1000)
- printk(KERN_DEBUG " Waiting for 3c509 to discard packet, status %x.\n",
- inw(ioaddr + EL3_STATUS) );
- }
-
- return 0;
-}
-
-/*
- * Set or clear the multicast filter for this adaptor.
- */
-static void
-set_multicast_list(struct net_device *dev)
-{
- unsigned long flags;
- struct el3_private *lp = (struct el3_private *)dev->priv;
- int ioaddr = dev->base_addr;
-
- if (el3_debug > 1) {
- static int old;
- if (old != dev->mc_count) {
- old = dev->mc_count;
- printk("%s: Setting Rx mode to %d addresses.\n", dev->name, dev->mc_count);
- }
- }
- spin_lock_irqsave(&lp->lock, flags);
- if (dev->flags&IFF_PROMISC) {
- outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm,
- ioaddr + EL3_CMD);
- }
- else if (dev->mc_count || (dev->flags&IFF_ALLMULTI)) {
- outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast, ioaddr + EL3_CMD);
- }
- else
- outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
- spin_unlock_irqrestore(&lp->lock, flags);
-}
-
-static int
-el3_close(struct net_device *dev)
-{
- int ioaddr = dev->base_addr;
-
- if (el3_debug > 2)
- printk("%s: Shutting down ethercard.\n", dev->name);
-
- netif_stop_queue(dev);
-
- /* Turn off statistics ASAP. We update lp->stats below. */
- outw(StatsDisable, ioaddr + EL3_CMD);
-
- /* Disable the receiver and transmitter. */
- outw(RxDisable, ioaddr + EL3_CMD);
- outw(TxDisable, ioaddr + EL3_CMD);
-
- if (dev->if_port == 3)
- /* Turn off thinnet power. Green! */
- outw(StopCoax, ioaddr + EL3_CMD);
- else if (dev->if_port == 0) {
- /* Disable link beat and jabber, if_port may change ere next open(). */
- EL3WINDOW(4);
- outw(inw(ioaddr + WN4_MEDIA) & ~MEDIA_TP, ioaddr + WN4_MEDIA);
- }
-
- free_irq(dev->irq, dev);
- /* Switching back to window 0 disables the IRQ. */
- EL3WINDOW(0);
- /* But we explicitly zero the IRQ line select anyway. */
- outw(0x0f00, ioaddr + WN0_IRQ);
-
- update_stats(dev);
- return 0;
-}
-
-/*#ifdef MODULE*/
-/* Parameters that may be passed into the module. */
-static int debug = -1;
-static int irq[] = {-1, -1, -1, -1, -1, -1, -1, -1};
-static int xcvr[] = {-1, -1, -1, -1, -1, -1, -1, -1};
-
-MODULE_PARM(debug,"i");
-MODULE_PARM(irq,"1-8i");
-MODULE_PARM(xcvr,"1-8i");
-MODULE_PARM(max_interrupt_work, "i");
-MODULE_PARM_DESC(debug, "EtherLink III debug level (0-6)");
-MODULE_PARM_DESC(irq, "EtherLink III IRQ number(s) (assigned)");
-MODULE_PARM_DESC(xcvr,"EtherLink III tranceiver(s) (0=internal, 1=external)");
-MODULE_PARM_DESC(max_interrupt_work, "EtherLink III maximum events handled per interrupt");
-#ifdef CONFIG_ISAPNP
-MODULE_PARM(nopnp, "i");
-MODULE_PARM_DESC(nopnp, "EtherLink III disable ISA PnP support (0-1)");
-#endif /* CONFIG_ISAPNP */
-
-int
-init_module(void)
-{
- int el3_cards = 0;
-
- if (debug >= 0)
- el3_debug = debug;
-
- el3_root_dev = NULL;
- while (el3_probe(0) == 0) {
- if (irq[el3_cards] > 1)
- el3_root_dev->irq = irq[el3_cards];
- if (xcvr[el3_cards] >= 0)
- el3_root_dev->if_port = xcvr[el3_cards];
- el3_cards++;
- }
-
- return el3_cards ? 0 : -ENODEV;
-}
-
-void
-cleanup_module(void)
-{
- struct net_device *next_dev;
-
- /* No need to check MOD_IN_USE, as sys_delete_module() checks. */
- while (el3_root_dev) {
- struct el3_private *lp = (struct el3_private *)el3_root_dev->priv;
-#ifdef CONFIG_MCA
- if(lp->mca_slot!=-1)
- mca_mark_as_unused(lp->mca_slot);
-#endif
- next_dev = lp->next_dev;
- unregister_netdev(el3_root_dev);
- release_region(el3_root_dev->base_addr, EL3_IO_EXTENT);
- kfree(el3_root_dev);
- el3_root_dev = next_dev;
- }
-}
-/*#endif*/
-
-module_init(init_module);
-module_exit(cleanup_module);
+++ /dev/null
-
-#define CONFIG_8139TOO_8129
-
-/*
-
- 8139too.c: A RealTek RTL-8139 Fast Ethernet driver for Linux.
-
- Maintained by Jeff Garzik <jgarzik@mandrakesoft.com>
- Copyright 2000,2001 Jeff Garzik
-
- Much code comes from Donald Becker's rtl8139.c driver,
- versions 1.13 and older. This driver was originally based
- on rtl8139.c version 1.07. Header of rtl8139.c version 1.13:
-
- -----<snip>-----
-
- Written 1997-2001 by Donald Becker.
- This software may be used and distributed according to the
- terms of the GNU General Public License (GPL), incorporated
- herein by reference. Drivers based on or derived from this
- code fall under the GPL and must retain the authorship,
- copyright and license notice. This file is not a complete
- program and may only be used when the entire operating
- system is licensed under the GPL.
-
- This driver is for boards based on the RTL8129 and RTL8139
- PCI ethernet chips.
-
- The author may be reached as becker@scyld.com, or C/O Scyld
- Computing Corporation 410 Severn Ave., Suite 210 Annapolis
- MD 21403
-
- Support and updates available at
- http://www.scyld.com/network/rtl8139.html
-
- Twister-tuning table provided by Kinston
- <shangh@realtek.com.tw>.
-
- -----<snip>-----
-
- This software may be used and distributed according to the terms
- of the GNU General Public License, incorporated herein by reference.
-
- Contributors:
-
- Donald Becker - he wrote the original driver, kudos to him!
- (but please don't e-mail him for support, this isn't his driver)
-
- Tigran Aivazian - bug fixes, skbuff free cleanup
-
- Martin Mares - suggestions for PCI cleanup
-
- David S. Miller - PCI DMA and softnet updates
-
- Ernst Gill - fixes ported from BSD driver
-
- Daniel Kobras - identified specific locations of
- posted MMIO write bugginess
-
- Gerard Sharp - bug fix, testing and feedback
-
- David Ford - Rx ring wrap fix
-
- Dan DeMaggio - swapped RTL8139 cards with me, and allowed me
- to find and fix a crucial bug on older chipsets.
-
- Donald Becker/Chris Butterworth/Marcus Westergren -
- Noticed various Rx packet size-related buglets.
-
- Santiago Garcia Mantinan - testing and feedback
-
- Jens David - 2.2.x kernel backports
-
- Martin Dennett - incredibly helpful insight on undocumented
- features of the 8139 chips
-
- Jean-Jacques Michel - bug fix
-
- Tobias Ringström - Rx interrupt status checking suggestion
-
- Andrew Morton - Clear blocked signals, avoid
- buffer overrun setting current->comm.
-
- Kalle Olavi Niemitalo - Wake-on-LAN ioctls
-
- Robert Kuebel - Save kernel thread from dying on any signal.
-
- Submitting bug reports:
-
- "rtl8139-diag -mmmaaavvveefN" output
- enable RTL8139_DEBUG below, and look at 'dmesg' or kernel log
-
- See 8139too.txt for more details.
-
-*/
-
-#define DRV_NAME "8139too"
-#define DRV_VERSION "0.9.22"
-
-
-#include <linux/config.h>
-#include <linux/module.h>
-//#include <linux/kernel.h>
-//#include <linux/compiler.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-//#include <linux/rtnetlink.h>
-#include <linux/delay.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-//#include <linux/completion.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-#define RTL8139_DRIVER_NAME DRV_NAME " Fast Ethernet driver " DRV_VERSION
-#define PFX DRV_NAME ": "
-
-
-/* enable PIO instead of MMIO, if CONFIG_8139TOO_PIO is selected */
-#ifdef CONFIG_8139TOO_PIO
-#define USE_IO_OPS 1
-#endif
-
-/* define to 1 to enable copious debugging info */
-#undef RTL8139_DEBUG
-
-/* define to 1 to disable lightweight runtime debugging checks */
-#undef RTL8139_NDEBUG
-
-
-#ifdef RTL8139_DEBUG
-/* note: prints function name for you */
-# define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
-#else
-# define DPRINTK(fmt, args...)
-#endif
-
-#ifdef RTL8139_NDEBUG
-# define assert(expr) do {} while (0)
-#else
-# define assert(expr) \
- if(!(expr)) { \
- printk( "Assertion failed! %s,%s,%s,line=%d\n", \
- #expr,__FILE__,__FUNCTION__,__LINE__); \
- }
-#endif
-
-
-/* A few user-configurable values. */
-/* media options */
-#define MAX_UNITS 8
-static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
-static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
-
-/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
-static int max_interrupt_work = 20;
-
-/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
- The RTL chips use a 64 element hash table based on the Ethernet CRC. */
-static int multicast_filter_limit = 32;
-
-/* Size of the in-memory receive ring. */
-#define RX_BUF_LEN_IDX 2 /* 0==8K, 1==16K, 2==32K, 3==64K */
-#define RX_BUF_LEN (8192 << RX_BUF_LEN_IDX)
-#define RX_BUF_PAD 16
-#define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */
-#define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD)
-
-/* Number of Tx descriptor registers. */
-#define NUM_TX_DESC 4
-
-/* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/
-#define MAX_ETH_FRAME_SIZE 1536
-
-/* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */
-#define TX_BUF_SIZE MAX_ETH_FRAME_SIZE
-#define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC)
-
-/* PCI Tuning Parameters
- Threshold is bytes transferred to chip before transmission starts. */
-#define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */
-
-/* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */
-#define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */
-#define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */
-#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
-#define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */
-
-/* Operational parameters that usually are not changed. */
-/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT (6*HZ)
-
-
-enum {
- HAS_MII_XCVR = 0x010000,
- HAS_CHIP_XCVR = 0x020000,
- HAS_LNK_CHNG = 0x040000,
-};
-
-#define RTL_MIN_IO_SIZE 0x80
-#define RTL8139B_IO_SIZE 256
-
-#define RTL8129_CAPS HAS_MII_XCVR
-#define RTL8139_CAPS HAS_CHIP_XCVR|HAS_LNK_CHNG
-
-typedef enum {
- RTL8139 = 0,
- RTL8139_CB,
- SMC1211TX,
- /*MPX5030,*/
- DELTA8139,
- ADDTRON8139,
- DFE538TX,
- DFE690TXD,
- RTL8129,
-} board_t;
-
-
-/* indexed by board_t, above */
-static struct {
- const char *name;
- u32 hw_flags;
-} board_info[] __devinitdata = {
- { "RealTek RTL8139 Fast Ethernet", RTL8139_CAPS },
- { "RealTek RTL8139B PCI/CardBus", RTL8139_CAPS },
- { "SMC1211TX EZCard 10/100 (RealTek RTL8139)", RTL8139_CAPS },
-/* { MPX5030, "Accton MPX5030 (RealTek RTL8139)", RTL8139_CAPS },*/
- { "Delta Electronics 8139 10/100BaseTX", RTL8139_CAPS },
- { "Addtron Technolgy 8139 10/100BaseTX", RTL8139_CAPS },
- { "D-Link DFE-538TX (RealTek RTL8139)", RTL8139_CAPS },
- { "D-Link DFE-690TXD (RealTek RTL8139)", RTL8139_CAPS },
- { "RealTek RTL8129", RTL8129_CAPS },
-};
-
-
-static struct pci_device_id rtl8139_pci_tbl[] __devinitdata = {
- {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139_CB },
- {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, SMC1211TX },
-/* {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MPX5030 },*/
- {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DELTA8139 },
- {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ADDTRON8139 },
- {0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DFE538TX },
- {0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DFE690TXD },
-
-#ifdef CONFIG_8139TOO_8129
- {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 },
-#endif
-
- /* some crazy cards report invalid vendor ids like
- * 0x0001 here. The other ids are valid and constant,
- * so we simply don't match on the main vendor id.
- */
- {PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 },
- {PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, DFE538TX },
-
- {0,}
-};
-MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl);
-
-
-/* The rest of these values should never change. */
-
-/* Symbolic offsets to registers. */
-enum RTL8139_registers {
- MAC0 = 0, /* Ethernet hardware address. */
- MAR0 = 8, /* Multicast filter. */
- TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */
- TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */
- RxBuf = 0x30,
- ChipCmd = 0x37,
- RxBufPtr = 0x38,
- RxBufAddr = 0x3A,
- IntrMask = 0x3C,
- IntrStatus = 0x3E,
- TxConfig = 0x40,
- ChipVersion = 0x43,
- RxConfig = 0x44,
- Timer = 0x48, /* A general-purpose counter. */
- RxMissed = 0x4C, /* 24 bits valid, write clears. */
- Cfg9346 = 0x50,
- Config0 = 0x51,
- Config1 = 0x52,
- FlashReg = 0x54,
- MediaStatus = 0x58,
- Config3 = 0x59,
- Config4 = 0x5A, /* absent on RTL-8139A */
- HltClk = 0x5B,
- MultiIntr = 0x5C,
- TxSummary = 0x60,
- BasicModeCtrl = 0x62,
- BasicModeStatus = 0x64,
- NWayAdvert = 0x66,
- NWayLPAR = 0x68,
- NWayExpansion = 0x6A,
- /* Undocumented registers, but required for proper operation. */
- FIFOTMS = 0x70, /* FIFO Control and test. */
- CSCR = 0x74, /* Chip Status and Configuration Register. */
- PARA78 = 0x78,
- PARA7c = 0x7c, /* Magic transceiver parameter register. */
- Config5 = 0xD8, /* absent on RTL-8139A */
-};
-
-enum ClearBitMasks {
- MultiIntrClear = 0xF000,
- ChipCmdClear = 0xE2,
- Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1),
-};
-
-enum ChipCmdBits {
- CmdReset = 0x10,
- CmdRxEnb = 0x08,
- CmdTxEnb = 0x04,
- RxBufEmpty = 0x01,
-};
-
-/* Interrupt register bits, using my own meaningful names. */
-enum IntrStatusBits {
- PCIErr = 0x8000,
- PCSTimeout = 0x4000,
- RxFIFOOver = 0x40,
- RxUnderrun = 0x20,
- RxOverflow = 0x10,
- TxErr = 0x08,
- TxOK = 0x04,
- RxErr = 0x02,
- RxOK = 0x01,
-
- RxAckBits = RxFIFOOver | RxOverflow | RxOK,
-};
-
-enum TxStatusBits {
- TxHostOwns = 0x2000,
- TxUnderrun = 0x4000,
- TxStatOK = 0x8000,
- TxOutOfWindow = 0x20000000,
- TxAborted = 0x40000000,
- TxCarrierLost = 0x80000000,
-};
-enum RxStatusBits {
- RxMulticast = 0x8000,
- RxPhysical = 0x4000,
- RxBroadcast = 0x2000,
- RxBadSymbol = 0x0020,
- RxRunt = 0x0010,
- RxTooLong = 0x0008,
- RxCRCErr = 0x0004,
- RxBadAlign = 0x0002,
- RxStatusOK = 0x0001,
-};
-
-/* Bits in RxConfig. */
-enum rx_mode_bits {
- AcceptErr = 0x20,
- AcceptRunt = 0x10,
- AcceptBroadcast = 0x08,
- AcceptMulticast = 0x04,
- AcceptMyPhys = 0x02,
- AcceptAllPhys = 0x01,
-};
-
-/* Bits in TxConfig. */
-enum tx_config_bits {
- TxIFG1 = (1 << 25), /* Interframe Gap Time */
- TxIFG0 = (1 << 24), /* Enabling these bits violates IEEE 802.3 */
- TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */
- TxCRC = (1 << 16), /* DISABLE appending CRC to end of Tx packets */
- TxClearAbt = (1 << 0), /* Clear abort (WO) */
- TxDMAShift = 8, /* DMA burst value (0-7) is shifted this many bits */
- TxRetryShift = 4, /* TXRR value (0-15) is shifted this many bits */
-
- TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */
-};
-
-/* Bits in Config1 */
-enum Config1Bits {
- Cfg1_PM_Enable = 0x01,
- Cfg1_VPD_Enable = 0x02,
- Cfg1_PIO = 0x04,
- Cfg1_MMIO = 0x08,
- LWAKE = 0x10, /* not on 8139, 8139A */
- Cfg1_Driver_Load = 0x20,
- Cfg1_LED0 = 0x40,
- Cfg1_LED1 = 0x80,
- SLEEP = (1 << 1), /* only on 8139, 8139A */
- PWRDN = (1 << 0), /* only on 8139, 8139A */
-};
-
-/* Bits in Config3 */
-enum Config3Bits {
- Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */
- Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */
- Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */
- Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */
- Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */
- Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */
- Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */
- Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */
-};
-
-/* Bits in Config4 */
-enum Config4Bits {
- LWPTN = (1 << 2), /* not on 8139, 8139A */
-};
-
-/* Bits in Config5 */
-enum Config5Bits {
- Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */
- Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */
- Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */
- Cfg5_FIFOAddrPtr = (1 << 3), /* Realtek internal SRAM testing */
- Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */
- Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */
- Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */
-};
-
-enum RxConfigBits {
- /* rx fifo threshold */
- RxCfgFIFOShift = 13,
- RxCfgFIFONone = (7 << RxCfgFIFOShift),
-
- /* Max DMA burst */
- RxCfgDMAShift = 8,
- RxCfgDMAUnlimited = (7 << RxCfgDMAShift),
-
- /* rx ring buffer length */
- RxCfgRcv8K = 0,
- RxCfgRcv16K = (1 << 11),
- RxCfgRcv32K = (1 << 12),
- RxCfgRcv64K = (1 << 11) | (1 << 12),
-
- /* Disable packet wrap at end of Rx buffer */
- RxNoWrap = (1 << 7),
-};
-
-
-/* Twister tuning parameters from RealTek.
- Completely undocumented, but required to tune bad links. */
-enum CSCRBits {
- CSCR_LinkOKBit = 0x0400,
- CSCR_LinkChangeBit = 0x0800,
- CSCR_LinkStatusBits = 0x0f000,
- CSCR_LinkDownOffCmd = 0x003c0,
- CSCR_LinkDownCmd = 0x0f3c0,
-};
-
-
-enum Cfg9346Bits {
- Cfg9346_Lock = 0x00,
- Cfg9346_Unlock = 0xC0,
-};
-
-
-#define PARA78_default 0x78fa8388
-#define PARA7c_default 0xcb38de43 /* param[0][3] */
-#define PARA7c_xxx 0xcb38de43
-static const unsigned long param[4][4] = {
- {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43},
- {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83},
- {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83},
- {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83}
-};
-
-typedef enum {
- CH_8139 = 0,
- CH_8139_K,
- CH_8139A,
- CH_8139B,
- CH_8130,
- CH_8139C,
-} chip_t;
-
-enum chip_flags {
- HasHltClk = (1 << 0),
- HasLWake = (1 << 1),
-};
-
-
-/* directly indexed by chip_t, above */
-const static struct {
- const char *name;
- u8 version; /* from RTL8139C docs */
- u32 RxConfigMask; /* should clear the bits supported by this chip */
- u32 flags;
-} rtl_chip_info[] = {
- { "RTL-8139",
- 0x40,
- 0xf0fe0040, /* XXX copied from RTL8139A, verify */
- HasHltClk,
- },
-
- { "RTL-8139 rev K",
- 0x60,
- 0xf0fe0040,
- HasHltClk,
- },
-
- { "RTL-8139A",
- 0x70,
- 0xf0fe0040,
- HasHltClk, /* XXX undocumented? */
- },
-
- { "RTL-8139B",
- 0x78,
- 0xf0fc0040,
- HasLWake,
- },
-
- { "RTL-8130",
- 0x7C,
- 0xf0fe0040, /* XXX copied from RTL8139A, verify */
- HasLWake,
- },
-
- { "RTL-8139C",
- 0x74,
- 0xf0fc0040, /* XXX copied from RTL8139B, verify */
- HasLWake,
- },
-
-};
-
-struct rtl_extra_stats {
- unsigned long early_rx;
- unsigned long tx_buf_mapped;
- unsigned long tx_timeouts;
-};
-
-struct rtl8139_private {
- void *mmio_addr;
- int drv_flags;
- struct pci_dev *pci_dev;
- struct net_device_stats stats;
- unsigned char *rx_ring;
- unsigned int cur_rx; /* Index into the Rx buffer of next Rx pkt. */
- unsigned int tx_flag;
- unsigned long cur_tx;
- unsigned long dirty_tx;
- unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */
- unsigned char *tx_bufs; /* Tx bounce buffer region. */
- dma_addr_t rx_ring_dma;
- dma_addr_t tx_bufs_dma;
- signed char phys[4]; /* MII device addresses. */
- char twistie, twist_row, twist_col; /* Twister tune state. */
- unsigned int full_duplex:1; /* Full-duplex operation requested. */
- unsigned int duplex_lock:1;
- unsigned int default_port:4; /* Last dev->if_port value. */
- unsigned int media2:4; /* Secondary monitored media port. */
- unsigned int medialock:1; /* Don't sense media type. */
- unsigned int mediasense:1; /* Media sensing in progress. */
- spinlock_t lock;
- chip_t chipset;
- u32 rx_config;
- struct rtl_extra_stats xstats;
- int time_to_die;
-};
-
-MODULE_AUTHOR ("Jeff Garzik <jgarzik@mandrakesoft.com>");
-MODULE_DESCRIPTION ("RealTek RTL-8139 Fast Ethernet driver");
-MODULE_LICENSE("GPL");
-
-MODULE_PARM (multicast_filter_limit, "i");
-MODULE_PARM (max_interrupt_work, "i");
-MODULE_PARM (media, "1-" __MODULE_STRING(MAX_UNITS) "i");
-MODULE_PARM (full_duplex, "1-" __MODULE_STRING(MAX_UNITS) "i");
-MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses");
-MODULE_PARM_DESC (max_interrupt_work, "8139too maximum events handled per interrupt");
-MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps");
-MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)");
-
-static int read_eeprom (void *ioaddr, int location, int addr_len);
-static int rtl8139_open (struct net_device *dev);
-static int mdio_read (struct net_device *dev, int phy_id, int location);
-static void mdio_write (struct net_device *dev, int phy_id, int location,
- int val);
-static void rtl8139_tx_timeout (struct net_device *dev);
-static void rtl8139_init_ring (struct net_device *dev);
-static int rtl8139_start_xmit (struct sk_buff *skb,
- struct net_device *dev);
-static void rtl8139_interrupt (int irq, void *dev_instance,
- struct pt_regs *regs);
-static int rtl8139_close (struct net_device *dev);
-static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
-static struct net_device_stats *rtl8139_get_stats (struct net_device *dev);
-static inline u32 ether_crc (int length, unsigned char *data);
-static void rtl8139_set_rx_mode (struct net_device *dev);
-static void __set_rx_mode (struct net_device *dev);
-static void rtl8139_hw_start (struct net_device *dev);
-
-#ifdef USE_IO_OPS
-
-#define RTL_R8(reg) inb (((unsigned long)ioaddr) + (reg))
-#define RTL_R16(reg) inw (((unsigned long)ioaddr) + (reg))
-#define RTL_R32(reg) ((unsigned long) inl (((unsigned long)ioaddr) + (reg)))
-#define RTL_W8(reg, val8) outb ((val8), ((unsigned long)ioaddr) + (reg))
-#define RTL_W16(reg, val16) outw ((val16), ((unsigned long)ioaddr) + (reg))
-#define RTL_W32(reg, val32) outl ((val32), ((unsigned long)ioaddr) + (reg))
-#define RTL_W8_F RTL_W8
-#define RTL_W16_F RTL_W16
-#define RTL_W32_F RTL_W32
-#undef readb
-#undef readw
-#undef readl
-#undef writeb
-#undef writew
-#undef writel
-#define readb(addr) inb((unsigned long)(addr))
-#define readw(addr) inw((unsigned long)(addr))
-#define readl(addr) inl((unsigned long)(addr))
-#define writeb(val,addr) outb((val),(unsigned long)(addr))
-#define writew(val,addr) outw((val),(unsigned long)(addr))
-#define writel(val,addr) outl((val),(unsigned long)(addr))
-
-#else
-
-/* write MMIO register, with flush */
-/* Flush avoids rtl8139 bug w/ posted MMIO writes */
-#define RTL_W8_F(reg, val8) do { writeb ((val8), ioaddr + (reg)); readb (ioaddr + (reg)); } while (0)
-#define RTL_W16_F(reg, val16) do { writew ((val16), ioaddr + (reg)); readw (ioaddr + (reg)); } while (0)
-#define RTL_W32_F(reg, val32) do { writel ((val32), ioaddr + (reg)); readl (ioaddr + (reg)); } while (0)
-
-
-#define MMIO_FLUSH_AUDIT_COMPLETE 1
-#if MMIO_FLUSH_AUDIT_COMPLETE
-
-/* write MMIO register */
-#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
-#define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
-#define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
-
-#else
-
-/* write MMIO register, then flush */
-#define RTL_W8 RTL_W8_F
-#define RTL_W16 RTL_W16_F
-#define RTL_W32 RTL_W32_F
-
-#endif /* MMIO_FLUSH_AUDIT_COMPLETE */
-
-/* read MMIO register */
-#define RTL_R8(reg) readb (ioaddr + (reg))
-#define RTL_R16(reg) readw (ioaddr + (reg))
-#define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg)))
-
-#endif /* USE_IO_OPS */
-
-
-static const u16 rtl8139_intr_mask =
- PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver |
- TxErr | TxOK | RxErr | RxOK;
-
-static const unsigned int rtl8139_rx_config =
- RxCfgRcv32K | RxNoWrap |
- (RX_FIFO_THRESH << RxCfgFIFOShift) |
- (RX_DMA_BURST << RxCfgDMAShift);
-
-static const unsigned int rtl8139_tx_config =
- (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift);
-
-static void __rtl8139_cleanup_dev (struct net_device *dev)
-{
- struct rtl8139_private *tp;
- struct pci_dev *pdev;
-
- assert (dev != NULL);
- assert (dev->priv != NULL);
-
- tp = dev->priv;
- assert (tp->pci_dev != NULL);
- pdev = tp->pci_dev;
-
-#ifndef USE_IO_OPS
- if (tp->mmio_addr)
- iounmap (tp->mmio_addr);
-#endif /* !USE_IO_OPS */
-
- /* it's ok to call this even if we have no regions to free */
- pci_release_regions (pdev);
-
-#ifndef RTL8139_NDEBUG
- /* poison memory before freeing */
- memset (dev, 0xBC,
- sizeof (struct net_device) +
- sizeof (struct rtl8139_private));
-#endif /* RTL8139_NDEBUG */
-
- kfree (dev);
-
- pci_set_drvdata (pdev, NULL);
-}
-
-
-static void rtl8139_chip_reset (void *ioaddr)
-{
- int i;
-
- /* Soft reset the chip. */
- RTL_W8 (ChipCmd, CmdReset);
-
- /* Check that the chip has finished the reset. */
- for (i = 1000; i > 0; i--) {
- barrier();
- if ((RTL_R8 (ChipCmd) & CmdReset) == 0)
- break;
- udelay (10);
- }
-}
-
-
-static int __devinit rtl8139_init_board (struct pci_dev *pdev,
- struct net_device **dev_out)
-{
- void *ioaddr;
- struct net_device *dev;
- struct rtl8139_private *tp;
- u8 tmp8;
- int rc;
- unsigned int i;
- u32 pio_start, pio_end, pio_flags, pio_len;
- unsigned long mmio_start, mmio_end, mmio_flags, mmio_len;
- u32 tmp;
-
- assert (pdev != NULL);
-
- *dev_out = NULL;
-
- /* dev and dev->priv zeroed in alloc_etherdev */
- dev = alloc_etherdev (sizeof (*tp));
- if (dev == NULL) {
- printk (KERN_ERR PFX "%s: Unable to alloc new net device\n", pdev->slot_name);
- return -ENOMEM;
- }
- SET_MODULE_OWNER(dev);
- tp = dev->priv;
- tp->pci_dev = pdev;
-
- /* enable device (incl. PCI PM wakeup and hotplug setup) */
- rc = pci_enable_device (pdev);
- if (rc)
- goto err_out;
-
- pio_start = pci_resource_start (pdev, 0);
- pio_end = pci_resource_end (pdev, 0);
- pio_flags = pci_resource_flags (pdev, 0);
- pio_len = pci_resource_len (pdev, 0);
-
- mmio_start = pci_resource_start (pdev, 1);
- mmio_end = pci_resource_end (pdev, 1);
- mmio_flags = pci_resource_flags (pdev, 1);
- mmio_len = pci_resource_len (pdev, 1);
-
- /* set this immediately, we need to know before
- * we talk to the chip directly */
- DPRINTK("PIO region size == 0x%02X\n", pio_len);
- DPRINTK("MMIO region size == 0x%02lX\n", mmio_len);
-
-#ifdef USE_IO_OPS
- /* make sure PCI base addr 0 is PIO */
- if (!(pio_flags & IORESOURCE_IO)) {
- printk (KERN_ERR PFX "%s: region #0 not a PIO resource, aborting\n", pdev->slot_name);
- rc = -ENODEV;
- goto err_out;
- }
- /* check for weird/broken PCI region reporting */
- if (pio_len < RTL_MIN_IO_SIZE) {
- printk (KERN_ERR PFX "%s: Invalid PCI I/O region size(s), aborting\n", pdev->slot_name);
- rc = -ENODEV;
- goto err_out;
- }
-#else
- /* make sure PCI base addr 1 is MMIO */
- if (!(mmio_flags & IORESOURCE_MEM)) {
- printk (KERN_ERR PFX "%s: region #1 not an MMIO resource, aborting\n", pdev->slot_name);
- rc = -ENODEV;
- goto err_out;
- }
- if (mmio_len < RTL_MIN_IO_SIZE) {
- printk (KERN_ERR PFX "%s: Invalid PCI mem region size(s), aborting\n", pdev->slot_name);
- rc = -ENODEV;
- goto err_out;
- }
-#endif
-
- rc = pci_request_regions (pdev, "8139too");
- if (rc)
- goto err_out;
-
- /* enable PCI bus-mastering */
- pci_set_master (pdev);
-
-#ifdef USE_IO_OPS
- ioaddr = (void *) pio_start;
- dev->base_addr = pio_start;
- tp->mmio_addr = ioaddr;
-#else
- /* ioremap MMIO region */
- ioaddr = ioremap (mmio_start, mmio_len);
- if (ioaddr == NULL) {
- printk (KERN_ERR PFX "%s: cannot remap MMIO, aborting\n", pdev->slot_name);
- rc = -EIO;
- goto err_out;
- }
- dev->base_addr = (long) ioaddr;
- tp->mmio_addr = ioaddr;
-#endif /* USE_IO_OPS */
-
- /* Bring old chips out of low-power mode. */
- RTL_W8 (HltClk, 'R');
-
- /* check for missing/broken hardware */
- if (RTL_R32 (TxConfig) == 0xFFFFFFFF) {
- printk (KERN_ERR PFX "%s: Chip not responding, ignoring board\n",
- pdev->slot_name);
- rc = -EIO;
- goto err_out;
- }
-
- /* identify chip attached to board */
- tmp = RTL_R8 (ChipVersion);
- for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++)
- if (tmp == rtl_chip_info[i].version) {
- tp->chipset = i;
- goto match;
- }
-
- /* if unknown chip, assume array element #0, original RTL-8139 in this case */
- printk (KERN_DEBUG PFX "%s: unknown chip version, assuming RTL-8139\n",
- pdev->slot_name);
- printk (KERN_DEBUG PFX "%s: TxConfig = 0x%lx\n", pdev->slot_name, RTL_R32 (TxConfig));
- tp->chipset = 0;
-
-match:
- DPRINTK ("chipset id (%d) == index %d, '%s'\n",
- tmp,
- tp->chipset,
- rtl_chip_info[tp->chipset].name);
-
- if (tp->chipset >= CH_8139B) {
- u8 new_tmp8 = tmp8 = RTL_R8 (Config1);
- DPRINTK("PCI PM wakeup\n");
- if ((rtl_chip_info[tp->chipset].flags & HasLWake) &&
- (tmp8 & LWAKE))
- new_tmp8 &= ~LWAKE;
- new_tmp8 |= Cfg1_PM_Enable;
- if (new_tmp8 != tmp8) {
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W8 (Config1, tmp8);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
- }
- if (rtl_chip_info[tp->chipset].flags & HasLWake) {
- tmp8 = RTL_R8 (Config4);
- if (tmp8 & LWPTN)
- RTL_W8 (Config4, tmp8 & ~LWPTN);
- }
- } else {
- DPRINTK("Old chip wakeup\n");
- tmp8 = RTL_R8 (Config1);
- tmp8 &= ~(SLEEP | PWRDN);
- RTL_W8 (Config1, tmp8);
- }
-
- rtl8139_chip_reset (ioaddr);
-
- *dev_out = dev;
- return 0;
-
-err_out:
- __rtl8139_cleanup_dev (dev);
- return rc;
-}
-
-
-static int __devinit rtl8139_init_one (struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- struct net_device *dev = NULL;
- struct rtl8139_private *tp;
- int i, addr_len, option;
- void *ioaddr;
- static int board_idx = -1;
- u8 pci_rev;
-
- assert (pdev != NULL);
- assert (ent != NULL);
-
- board_idx++;
-
- /* when we're built into the kernel, the driver version message
- * is only printed if at least one 8139 board has been found
- */
-#ifndef MODULE
- {
- static int printed_version;
- if (!printed_version++)
- printk (KERN_INFO RTL8139_DRIVER_NAME "\n");
- }
-#endif
-
- pci_read_config_byte(pdev, PCI_REVISION_ID, &pci_rev);
-
- if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
- pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pci_rev >= 0x20) {
- printk(KERN_INFO PFX "pci dev %s (id %04x:%04x rev %02x) is an enhanced 8139C+ chip\n",
- pdev->slot_name, pdev->vendor, pdev->device, pci_rev);
- printk(KERN_INFO PFX "Ensure the \"8139cp\" driver is installed!\n");
- return -ENODEV; /* force use of better driver */
- }
-
- i = rtl8139_init_board (pdev, &dev);
- if (i < 0)
- return i;
-
- tp = dev->priv;
- ioaddr = tp->mmio_addr;
-
- assert (ioaddr != NULL);
- assert (dev != NULL);
- assert (tp != NULL);
-
- addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6;
- for (i = 0; i < 3; i++)
- ((u16 *) (dev->dev_addr))[i] =
- le16_to_cpu (read_eeprom (ioaddr, i + 7, addr_len));
-
- /* The Rtl8139-specific entries in the device structure. */
- dev->open = rtl8139_open;
- dev->hard_start_xmit = rtl8139_start_xmit;
- dev->stop = rtl8139_close;
- dev->get_stats = rtl8139_get_stats;
- dev->set_multicast_list = rtl8139_set_rx_mode;
- dev->do_ioctl = netdev_ioctl;
- dev->tx_timeout = rtl8139_tx_timeout;
- dev->watchdog_timeo = TX_TIMEOUT;
- dev->features |= NETIF_F_SG;
-
- dev->irq = pdev->irq;
-
- /* dev->priv/tp zeroed and aligned in init_etherdev */
- tp = dev->priv;
-
- /* note: tp->chipset set in rtl8139_init_board */
- tp->drv_flags = board_info[ent->driver_data].hw_flags;
- tp->mmio_addr = ioaddr;
- spin_lock_init (&tp->lock);
-
- /* dev is fully set up and ready to use now */
- DPRINTK("about to register device named %s (%p)...\n", dev->name, dev);
- i = register_netdev (dev);
- if (i) goto err_out;
-
- pci_set_drvdata (pdev, dev);
-
- printk (KERN_INFO "%s: %s at 0x%lx, "
- "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
- "IRQ %d\n",
- dev->name,
- board_info[ent->driver_data].name,
- dev->base_addr,
- dev->dev_addr[0], dev->dev_addr[1],
- dev->dev_addr[2], dev->dev_addr[3],
- dev->dev_addr[4], dev->dev_addr[5],
- dev->irq);
-
- printk (KERN_DEBUG "%s: Identified 8139 chip type '%s'\n",
- dev->name, rtl_chip_info[tp->chipset].name);
-
- /* Find the connected MII xcvrs.
- Doing this in open() would allow detecting external xcvrs later, but
- takes too much time. */
-#ifdef CONFIG_8139TOO_8129
- if (tp->drv_flags & HAS_MII_XCVR) {
- int phy, phy_idx = 0;
- for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) {
- int mii_status = mdio_read(dev, phy, 1);
- if (mii_status != 0xffff && mii_status != 0x0000) {
- u16 advertising = mdio_read(dev, phy, 4);
- tp->phys[phy_idx++] = phy;
- printk(KERN_INFO "%s: MII transceiver %d status 0x%4.4x "
- "advertising %4.4x.\n",
- dev->name, phy, mii_status, advertising);
- }
- }
- if (phy_idx == 0) {
- printk(KERN_INFO "%s: No MII transceivers found! Assuming SYM "
- "transceiver.\n",
- dev->name);
- tp->phys[0] = 32;
- }
- } else
-#endif
- tp->phys[0] = 32;
-
- /* The lower four bits are the media type. */
- option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx];
- if (option > 0) {
- tp->full_duplex = (option & 0x210) ? 1 : 0;
- tp->default_port = option & 0xFF;
- if (tp->default_port)
- tp->medialock = 1;
- }
- if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0)
- tp->full_duplex = full_duplex[board_idx];
- if (tp->full_duplex) {
- printk(KERN_INFO "%s: Media type forced to Full Duplex.\n", dev->name);
- /* Changing the MII-advertised media because might prevent
- re-connection. */
- tp->duplex_lock = 1;
- }
- if (tp->default_port) {
- printk(KERN_INFO " Forcing %dMbps %s-duplex operation.\n",
- (option & 0x20 ? 100 : 10),
- (option & 0x10 ? "full" : "half"));
- mdio_write(dev, tp->phys[0], 0,
- ((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */
- ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */
- }
-
- /* Put the chip into low-power mode. */
- if (rtl_chip_info[tp->chipset].flags & HasHltClk)
- RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */
-
- return 0;
-
-err_out:
- __rtl8139_cleanup_dev (dev);
- return i;
-}
-
-
-static void __devexit rtl8139_remove_one (struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata (pdev);
- struct rtl8139_private *np;
-
- assert (dev != NULL);
- np = dev->priv;
- assert (np != NULL);
-
- unregister_netdev (dev);
-
- __rtl8139_cleanup_dev (dev);
-}
-
-
-/* Serial EEPROM section. */
-
-/* EEPROM_Ctrl bits. */
-#define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */
-#define EE_CS 0x08 /* EEPROM chip select. */
-#define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */
-#define EE_WRITE_0 0x00
-#define EE_WRITE_1 0x02
-#define EE_DATA_READ 0x01 /* EEPROM chip data out. */
-#define EE_ENB (0x80 | EE_CS)
-
-/* Delay between EEPROM clock transitions.
- No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
- */
-
-#define eeprom_delay() readl(ee_addr)
-
-/* The EEPROM commands include the alway-set leading bit. */
-#define EE_WRITE_CMD (5)
-#define EE_READ_CMD (6)
-#define EE_ERASE_CMD (7)
-
-static int __devinit read_eeprom (void *ioaddr, int location, int addr_len)
-{
- int i;
- unsigned retval = 0;
- void *ee_addr = ioaddr + Cfg9346;
- int read_cmd = location | (EE_READ_CMD << addr_len);
-
- writeb (EE_ENB & ~EE_CS, ee_addr);
- writeb (EE_ENB, ee_addr);
- eeprom_delay ();
-
- /* Shift the read command bits out. */
- for (i = 4 + addr_len; i >= 0; i--) {
- int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
- writeb (EE_ENB | dataval, ee_addr);
- eeprom_delay ();
- writeb (EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
- eeprom_delay ();
- }
- writeb (EE_ENB, ee_addr);
- eeprom_delay ();
-
- for (i = 16; i > 0; i--) {
- writeb (EE_ENB | EE_SHIFT_CLK, ee_addr);
- eeprom_delay ();
- retval =
- (retval << 1) | ((readb (ee_addr) & EE_DATA_READ) ? 1 :
- 0);
- writeb (EE_ENB, ee_addr);
- eeprom_delay ();
- }
-
- /* Terminate the EEPROM access. */
- writeb (~EE_CS, ee_addr);
- eeprom_delay ();
-
- return retval;
-}
-
-/* MII serial management: mostly bogus for now. */
-/* Read and write the MII management registers using software-generated
- serial MDIO protocol.
- The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
- met by back-to-back PCI I/O cycles, but we insert a delay to avoid
- "overclocking" issues. */
-#define MDIO_DIR 0x80
-#define MDIO_DATA_OUT 0x04
-#define MDIO_DATA_IN 0x02
-#define MDIO_CLK 0x01
-#define MDIO_WRITE0 (MDIO_DIR)
-#define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT)
-
-#define mdio_delay(mdio_addr) readb(mdio_addr)
-
-
-static char mii_2_8139_map[8] = {
- BasicModeCtrl,
- BasicModeStatus,
- 0,
- 0,
- NWayAdvert,
- NWayLPAR,
- NWayExpansion,
- 0
-};
-
-
-#ifdef CONFIG_8139TOO_8129
-/* Syncronize the MII management interface by shifting 32 one bits out. */
-static void mdio_sync (void *mdio_addr)
-{
- int i;
-
- for (i = 32; i >= 0; i--) {
- writeb (MDIO_WRITE1, mdio_addr);
- mdio_delay (mdio_addr);
- writeb (MDIO_WRITE1 | MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
- }
-}
-#endif
-
-static int mdio_read (struct net_device *dev, int phy_id, int location)
-{
- struct rtl8139_private *tp = dev->priv;
- int retval = 0;
-#ifdef CONFIG_8139TOO_8129
- void *mdio_addr = tp->mmio_addr + Config4;
- int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location;
- int i;
-#endif
-
- if (phy_id > 31) { /* Really a 8139. Use internal registers. */
- return location < 8 && mii_2_8139_map[location] ?
- readw (tp->mmio_addr + mii_2_8139_map[location]) : 0;
- }
-
-#ifdef CONFIG_8139TOO_8129
- mdio_sync (mdio_addr);
- /* Shift the read command bits out. */
- for (i = 15; i >= 0; i--) {
- int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0;
-
- writeb (MDIO_DIR | dataval, mdio_addr);
- mdio_delay (mdio_addr);
- writeb (MDIO_DIR | dataval | MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
- }
-
- /* Read the two transition, 16 data, and wire-idle bits. */
- for (i = 19; i > 0; i--) {
- writeb (0, mdio_addr);
- mdio_delay (mdio_addr);
- retval = (retval << 1) | ((readb (mdio_addr) & MDIO_DATA_IN) ? 1 : 0);
- writeb (MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
- }
-#endif
-
- return (retval >> 1) & 0xffff;
-}
-
-
-static void mdio_write (struct net_device *dev, int phy_id, int location,
- int value)
-{
- struct rtl8139_private *tp = dev->priv;
-#ifdef CONFIG_8139TOO_8129
- void *mdio_addr = tp->mmio_addr + Config4;
- int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value;
- int i;
-#endif
-
- if (phy_id > 31) { /* Really a 8139. Use internal registers. */
- void *ioaddr = tp->mmio_addr;
- if (location == 0) {
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W16 (BasicModeCtrl, value);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
- } else if (location < 8 && mii_2_8139_map[location])
- RTL_W16 (mii_2_8139_map[location], value);
- return;
- }
-
-#ifdef CONFIG_8139TOO_8129
- mdio_sync (mdio_addr);
-
- /* Shift the command bits out. */
- for (i = 31; i >= 0; i--) {
- int dataval =
- (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0;
- writeb (dataval, mdio_addr);
- mdio_delay (mdio_addr);
- writeb (dataval | MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
- }
- /* Clear out extra bits. */
- for (i = 2; i > 0; i--) {
- writeb (0, mdio_addr);
- mdio_delay (mdio_addr);
- writeb (MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
- }
-#endif
-}
-
-
-static int rtl8139_open (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- int retval;
-#ifdef RTL8139_DEBUG
- void *ioaddr = tp->mmio_addr;
-#endif
-
- retval = request_irq (dev->irq, rtl8139_interrupt, SA_SHIRQ, dev->name, dev);
- if (retval)
- return retval;
-
- tp->tx_bufs = pci_alloc_consistent(tp->pci_dev, TX_BUF_TOT_LEN,
- &tp->tx_bufs_dma);
- tp->rx_ring = pci_alloc_consistent(tp->pci_dev, RX_BUF_TOT_LEN,
- &tp->rx_ring_dma);
- if (tp->tx_bufs == NULL || tp->rx_ring == NULL) {
- free_irq(dev->irq, dev);
-
- if (tp->tx_bufs)
- pci_free_consistent(tp->pci_dev, TX_BUF_TOT_LEN,
- tp->tx_bufs, tp->tx_bufs_dma);
- if (tp->rx_ring)
- pci_free_consistent(tp->pci_dev, RX_BUF_TOT_LEN,
- tp->rx_ring, tp->rx_ring_dma);
-
- return -ENOMEM;
-
- }
-
- tp->full_duplex = tp->duplex_lock;
- tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000;
- tp->twistie = 1;
- tp->time_to_die = 0;
-
- rtl8139_init_ring (dev);
- rtl8139_hw_start (dev);
-
- DPRINTK ("%s: rtl8139_open() ioaddr %#lx IRQ %d"
- " GP Pins %2.2x %s-duplex.\n",
- dev->name, pci_resource_start (tp->pci_dev, 1),
- dev->irq, RTL_R8 (MediaStatus),
- tp->full_duplex ? "full" : "half");
-
- return 0;
-}
-
-
-static void rtl_check_media (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
-
- if (tp->phys[0] >= 0) {
- u16 mii_reg5 = mdio_read(dev, tp->phys[0], 5);
- if (mii_reg5 == 0xffff)
- ; /* Not there */
- else if ((mii_reg5 & 0x0100) == 0x0100
- || (mii_reg5 & 0x00C0) == 0x0040)
- tp->full_duplex = 1;
-
- printk (KERN_INFO"%s: Setting %s%s-duplex based on"
- " auto-negotiated partner ability %4.4x.\n",
- dev->name, mii_reg5 == 0 ? "" :
- (mii_reg5 & 0x0180) ? "100mbps " : "10mbps ",
- tp->full_duplex ? "full" : "half", mii_reg5);
- }
-}
-
-/* Start the hardware at open or resume. */
-static void rtl8139_hw_start (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
- u32 i;
- u8 tmp;
-
- /* Bring old chips out of low-power mode. */
- if (rtl_chip_info[tp->chipset].flags & HasHltClk)
- RTL_W8 (HltClk, 'R');
-
- rtl8139_chip_reset (ioaddr);
-
- /* unlock Config[01234] and BMCR register writes */
- RTL_W8_F (Cfg9346, Cfg9346_Unlock);
- /* Restore our idea of the MAC address. */
- RTL_W32_F (MAC0 + 0, cpu_to_le32 (*(u32 *) (dev->dev_addr + 0)));
- RTL_W32_F (MAC0 + 4, cpu_to_le32 (*(u32 *) (dev->dev_addr + 4)));
-
- /* Must enable Tx/Rx before setting transfer thresholds! */
- RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
-
- tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys;
- RTL_W32 (RxConfig, tp->rx_config);
-
- /* Check this value: the documentation for IFG contradicts ifself. */
- RTL_W32 (TxConfig, rtl8139_tx_config);
-
- tp->cur_rx = 0;
-
- rtl_check_media (dev);
-
- if (tp->chipset >= CH_8139B) {
- /* Disable magic packet scanning, which is enabled
- * when PM is enabled in Config1. It can be reenabled
- * via ETHTOOL_SWOL if desired. */
- RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic);
- }
-
- DPRINTK("init buffer addresses\n");
-
- /* Lock Config[01234] and BMCR register writes */
- RTL_W8 (Cfg9346, Cfg9346_Lock);
-
- /* init Rx ring buffer DMA address */
- RTL_W32_F (RxBuf, tp->rx_ring_dma);
-
- /* init Tx buffer DMA addresses */
- for (i = 0; i < NUM_TX_DESC; i++)
- RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs));
-
- RTL_W32 (RxMissed, 0);
-
- rtl8139_set_rx_mode (dev);
-
- /* no early-rx interrupts */
- RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear);
-
- /* make sure RxTx has started */
- tmp = RTL_R8 (ChipCmd);
- if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb)))
- RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
-
- /* Enable all known interrupts by setting the interrupt mask. */
- RTL_W16 (IntrMask, rtl8139_intr_mask);
-
- netif_start_queue (dev);
-}
-
-
-/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
-static void rtl8139_init_ring (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- int i;
-
- tp->cur_rx = 0;
- tp->cur_tx = 0;
- tp->dirty_tx = 0;
-
- for (i = 0; i < NUM_TX_DESC; i++)
- tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE];
-}
-
-
-static void rtl8139_tx_clear (struct rtl8139_private *tp)
-{
- tp->cur_tx = 0;
- tp->dirty_tx = 0;
-
- /* XXX account for unsent Tx packets in tp->stats.tx_dropped */
-}
-
-
-static void rtl8139_tx_timeout (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
- int i;
- u8 tmp8;
- unsigned long flags;
-
- DPRINTK ("%s: Transmit timeout, status %2.2x %4.4x "
- "media %2.2x.\n", dev->name,
- RTL_R8 (ChipCmd),
- RTL_R16 (IntrStatus),
- RTL_R8 (MediaStatus));
-
- tp->xstats.tx_timeouts++;
-
- /* disable Tx ASAP, if not already */
- tmp8 = RTL_R8 (ChipCmd);
- if (tmp8 & CmdTxEnb)
- RTL_W8 (ChipCmd, CmdRxEnb);
-
- /* Disable interrupts by clearing the interrupt mask. */
- RTL_W16 (IntrMask, 0x0000);
-
- /* Emit info to figure out what went wrong. */
- printk (KERN_DEBUG "%s: Tx queue start entry %ld dirty entry %ld.\n",
- dev->name, tp->cur_tx, tp->dirty_tx);
- for (i = 0; i < NUM_TX_DESC; i++)
- printk (KERN_DEBUG "%s: Tx descriptor %d is %8.8lx.%s\n",
- dev->name, i, RTL_R32 (TxStatus0 + (i * 4)),
- i == tp->dirty_tx % NUM_TX_DESC ?
- " (queue head)" : "");
-
- /* Stop a shared interrupt from scavenging while we are. */
- spin_lock_irqsave (&tp->lock, flags);
- rtl8139_tx_clear (tp);
- spin_unlock_irqrestore (&tp->lock, flags);
-
- /* ...and finally, reset everything */
- rtl8139_hw_start (dev);
-
- netif_wake_queue (dev);
-}
-
-
-static int rtl8139_start_xmit (struct sk_buff *skb, struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
- unsigned int entry;
-
- /* Calculate the next Tx descriptor entry. */
- entry = tp->cur_tx % NUM_TX_DESC;
-
- if (likely(skb->len < TX_BUF_SIZE)) {
- skb_copy_bits(skb, 0, tp->tx_buf[entry], skb->len);
- dev_kfree_skb(skb);
- } else {
- dev_kfree_skb(skb);
- tp->stats.tx_dropped++;
- return 0;
- }
-
- /* Note: the chip doesn't have auto-pad! */
- spin_lock_irq(&tp->lock);
- RTL_W32_F (TxStatus0 + (entry * sizeof (u32)),
- tp->tx_flag | (skb->len >= ETH_ZLEN ? skb->len : ETH_ZLEN));
-
- dev->trans_start = jiffies;
-
- tp->cur_tx++;
- wmb();
-
- if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx)
- netif_stop_queue (dev);
- spin_unlock_irq(&tp->lock);
-
- DPRINTK ("%s: Queued Tx packet at %p size %u to slot %d.\n",
- dev->name, skb->data, skb->len, entry);
-
- return 0;
-}
-
-
-static void rtl8139_tx_interrupt (struct net_device *dev,
- struct rtl8139_private *tp,
- void *ioaddr)
-{
- unsigned long dirty_tx, tx_left;
-
- assert (dev != NULL);
- assert (tp != NULL);
- assert (ioaddr != NULL);
-
- dirty_tx = tp->dirty_tx;
- tx_left = tp->cur_tx - dirty_tx;
- while (tx_left > 0) {
- int entry = dirty_tx % NUM_TX_DESC;
- int txstatus;
-
- txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32)));
-
- if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted)))
- break; /* It still hasn't been Txed */
-
- /* Note: TxCarrierLost is always asserted at 100mbps. */
- if (txstatus & (TxOutOfWindow | TxAborted)) {
- /* There was an major error, log it. */
- DPRINTK ("%s: Transmit error, Tx status %8.8x.\n",
- dev->name, txstatus);
- tp->stats.tx_errors++;
- if (txstatus & TxAborted) {
- tp->stats.tx_aborted_errors++;
- RTL_W32 (TxConfig, TxClearAbt);
- RTL_W16 (IntrStatus, TxErr);
- wmb();
- }
- if (txstatus & TxCarrierLost)
- tp->stats.tx_carrier_errors++;
- if (txstatus & TxOutOfWindow)
- tp->stats.tx_window_errors++;
-#ifdef ETHER_STATS
- if ((txstatus & 0x0f000000) == 0x0f000000)
- tp->stats.collisions16++;
-#endif
- } else {
- if (txstatus & TxUnderrun) {
- /* Add 64 to the Tx FIFO threshold. */
- if (tp->tx_flag < 0x00300000)
- tp->tx_flag += 0x00020000;
- tp->stats.tx_fifo_errors++;
- }
- tp->stats.collisions += (txstatus >> 24) & 15;
- tp->stats.tx_bytes += txstatus & 0x7ff;
- tp->stats.tx_packets++;
- }
-
- dirty_tx++;
- tx_left--;
- }
-
-#ifndef RTL8139_NDEBUG
- if (tp->cur_tx - dirty_tx > NUM_TX_DESC) {
- printk (KERN_ERR "%s: Out-of-sync dirty pointer, %ld vs. %ld.\n",
- dev->name, dirty_tx, tp->cur_tx);
- dirty_tx += NUM_TX_DESC;
- }
-#endif /* RTL8139_NDEBUG */
-
- /* only wake the queue if we did work, and the queue is stopped */
- if (tp->dirty_tx != dirty_tx) {
- tp->dirty_tx = dirty_tx;
- mb();
- if (netif_queue_stopped (dev))
- netif_wake_queue (dev);
- }
-}
-
-
-/* TODO: clean this up! Rx reset need not be this intensive */
-static void rtl8139_rx_err (u32 rx_status, struct net_device *dev,
- struct rtl8139_private *tp, void *ioaddr)
-{
- u8 tmp8;
- int tmp_work;
-
- DPRINTK ("%s: Ethernet frame had errors, status %8.8x.\n",
- dev->name, rx_status);
- if (rx_status & RxTooLong) {
- DPRINTK ("%s: Oversized Ethernet frame, status %4.4x!\n",
- dev->name, rx_status);
- /* A.C.: The chip hangs here. */
- }
- tp->stats.rx_errors++;
- if (rx_status & (RxBadSymbol | RxBadAlign))
- tp->stats.rx_frame_errors++;
- if (rx_status & (RxRunt | RxTooLong))
- tp->stats.rx_length_errors++;
- if (rx_status & RxCRCErr)
- tp->stats.rx_crc_errors++;
-
- /* Reset the receiver, based on RealTek recommendation. (Bug?) */
-
- /* disable receive */
- RTL_W8_F (ChipCmd, CmdTxEnb);
- tmp_work = 200;
- while (--tmp_work > 0) {
- udelay(1);
- tmp8 = RTL_R8 (ChipCmd);
- if (!(tmp8 & CmdRxEnb))
- break;
- }
- if (tmp_work <= 0)
- printk (KERN_WARNING PFX "rx stop wait too long\n");
- /* restart receive */
- tmp_work = 200;
- while (--tmp_work > 0) {
- RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb);
- udelay(1);
- tmp8 = RTL_R8 (ChipCmd);
- if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb))
- break;
- }
- if (tmp_work <= 0)
- printk (KERN_WARNING PFX "tx/rx enable wait too long\n");
-
- /* and reinitialize all rx related registers */
- RTL_W8_F (Cfg9346, Cfg9346_Unlock);
- /* Must enable Tx/Rx before setting transfer thresholds! */
- RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
-
- tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys;
- RTL_W32 (RxConfig, tp->rx_config);
- tp->cur_rx = 0;
-
- DPRINTK("init buffer addresses\n");
-
- /* Lock Config[01234] and BMCR register writes */
- RTL_W8 (Cfg9346, Cfg9346_Lock);
-
- /* init Rx ring buffer DMA address */
- RTL_W32_F (RxBuf, tp->rx_ring_dma);
-
- /* A.C.: Reset the multicast list. */
- __set_rx_mode (dev);
-}
-
-static void rtl8139_rx_interrupt (struct net_device *dev,
- struct rtl8139_private *tp, void *ioaddr)
-{
- unsigned char *rx_ring;
- u16 cur_rx;
-
- assert (dev != NULL);
- assert (tp != NULL);
- assert (ioaddr != NULL);
-
- rx_ring = tp->rx_ring;
- cur_rx = tp->cur_rx;
-
- DPRINTK ("%s: In rtl8139_rx(), current %4.4x BufAddr %4.4x,"
- " free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx,
- RTL_R16 (RxBufAddr),
- RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd));
-
- while ((RTL_R8 (ChipCmd) & RxBufEmpty) == 0) {
- int ring_offset = cur_rx % RX_BUF_LEN;
- u32 rx_status;
- unsigned int rx_size;
- unsigned int pkt_size;
- struct sk_buff *skb;
-
- rmb();
-
- /* read size+status of next frame from DMA ring buffer */
- rx_status = le32_to_cpu (*(u32 *) (rx_ring + ring_offset));
- rx_size = rx_status >> 16;
- pkt_size = rx_size - 4;
-
- DPRINTK ("%s: rtl8139_rx() status %4.4x, size %4.4x,"
- " cur %4.4x.\n", dev->name, rx_status,
- rx_size, cur_rx);
-#if RTL8139_DEBUG > 2
- {
- int i;
- DPRINTK ("%s: Frame contents ", dev->name);
- for (i = 0; i < 70; i++)
- printk (" %2.2x",
- rx_ring[ring_offset + i]);
- printk (".\n");
- }
-#endif
-
- /* Packet copy from FIFO still in progress.
- * Theoretically, this should never happen
- * since EarlyRx is disabled.
- */
- if (rx_size == 0xfff0) {
- tp->xstats.early_rx++;
- break;
- }
-
- /* If Rx err or invalid rx_size/rx_status received
- * (which happens if we get lost in the ring),
- * Rx process gets reset, so we abort any further
- * Rx processing.
- */
- if ((rx_size > (MAX_ETH_FRAME_SIZE+4)) ||
- (rx_size < 8) ||
- (!(rx_status & RxStatusOK))) {
- rtl8139_rx_err (rx_status, dev, tp, ioaddr);
- return;
- }
-
- /* Malloc up new buffer, compatible with net-2e. */
- /* Omit the four octet CRC from the length. */
-
- /* TODO: consider allocating skb's outside of
- * interrupt context, both to speed interrupt processing,
- * and also to reduce the chances of having to
- * drop packets here under memory pressure.
- */
-
- skb = dev_alloc_skb (pkt_size + 2);
- if (skb) {
- skb->dev = dev;
- skb_reserve (skb, 2); /* 16 byte align the IP fields. */
-
- eth_copy_and_sum (skb, &rx_ring[ring_offset + 4], pkt_size, 0);
- skb_put (skb, pkt_size);
-
- skb->protocol = eth_type_trans (skb, dev);
- netif_rx (skb);
- dev->last_rx = jiffies;
- tp->stats.rx_bytes += pkt_size;
- tp->stats.rx_packets++;
- } else {
- printk (KERN_WARNING
- "%s: Memory squeeze, dropping packet.\n",
- dev->name);
- tp->stats.rx_dropped++;
- }
-
- cur_rx = (cur_rx + rx_size + 4 + 3) & ~3;
- RTL_W16 (RxBufPtr, cur_rx - 16);
-
- if (RTL_R16 (IntrStatus) & RxAckBits)
- RTL_W16_F (IntrStatus, RxAckBits);
- }
-
- DPRINTK ("%s: Done rtl8139_rx(), current %4.4x BufAddr %4.4x,"
- " free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx,
- RTL_R16 (RxBufAddr),
- RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd));
-
- tp->cur_rx = cur_rx;
-}
-
-
-static void rtl8139_weird_interrupt (struct net_device *dev,
- struct rtl8139_private *tp,
- void *ioaddr,
- int status, int link_changed)
-{
- DPRINTK ("%s: Abnormal interrupt, status %8.8x.\n",
- dev->name, status);
-
- assert (dev != NULL);
- assert (tp != NULL);
- assert (ioaddr != NULL);
-
- /* Update the error count. */
- tp->stats.rx_missed_errors += RTL_R32 (RxMissed);
- RTL_W32 (RxMissed, 0);
-
- if ((status & RxUnderrun) && link_changed &&
- (tp->drv_flags & HAS_LNK_CHNG)) {
- /* Really link-change on new chips. */
- int lpar = RTL_R16 (NWayLPAR);
- int duplex = (lpar & 0x0100) || (lpar & 0x01C0) == 0x0040
- || tp->duplex_lock;
- if (tp->full_duplex != duplex) {
- tp->full_duplex = duplex;
-#if 0
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W8 (Config1, tp->full_duplex ? 0x60 : 0x20);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
-#endif
- }
- status &= ~RxUnderrun;
- }
-
- /* XXX along with rtl8139_rx_err, are we double-counting errors? */
- if (status &
- (RxUnderrun | RxOverflow | RxErr | RxFIFOOver))
- tp->stats.rx_errors++;
-
- if (status & PCSTimeout)
- tp->stats.rx_length_errors++;
- if (status & (RxUnderrun | RxFIFOOver))
- tp->stats.rx_fifo_errors++;
- if (status & PCIErr) {
- u16 pci_cmd_status;
- pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status);
- pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status);
-
- printk (KERN_ERR "%s: PCI Bus error %4.4x.\n",
- dev->name, pci_cmd_status);
- }
-}
-
-
-/* The interrupt handler does all of the Rx thread work and cleans up
- after the Tx thread. */
-static void rtl8139_interrupt (int irq, void *dev_instance,
- struct pt_regs *regs)
-{
- struct net_device *dev = (struct net_device *) dev_instance;
- struct rtl8139_private *tp = dev->priv;
- int boguscnt = max_interrupt_work;
- void *ioaddr = tp->mmio_addr;
- int ackstat, status;
- int link_changed = 0; /* avoid bogus "uninit" warning */
-
- spin_lock (&tp->lock);
-
- do {
- status = RTL_R16 (IntrStatus);
-
- /* h/w no longer present (hotplug?) or major error, bail */
- if (status == 0xFFFF)
- break;
-
- if ((status &
- (PCIErr | PCSTimeout | RxUnderrun | RxOverflow |
- RxFIFOOver | TxErr | TxOK | RxErr | RxOK)) == 0)
- break;
-
- /* Acknowledge all of the current interrupt sources ASAP, but
- an first get an additional status bit from CSCR. */
- if (status & RxUnderrun)
- link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit;
-
- /* The chip takes special action when we clear RxAckBits,
- * so we clear them later in rtl8139_rx_interrupt
- */
- ackstat = status & ~(RxAckBits | TxErr);
- RTL_W16 (IntrStatus, ackstat);
-
- DPRINTK ("%s: interrupt status=%#4.4x ackstat=%#4.4x new intstat=%#4.4x.\n",
- dev->name, ackstat, status, RTL_R16 (IntrStatus));
-
- if (netif_running (dev) && (status & RxAckBits))
- rtl8139_rx_interrupt (dev, tp, ioaddr);
-
- /* Check uncommon events with one test. */
- if (status & (PCIErr | PCSTimeout | RxUnderrun | RxOverflow |
- RxFIFOOver | RxErr))
- rtl8139_weird_interrupt (dev, tp, ioaddr,
- status, link_changed);
-
- if (netif_running (dev) && (status & (TxOK | TxErr))) {
- rtl8139_tx_interrupt (dev, tp, ioaddr);
- if (status & TxErr)
- RTL_W16 (IntrStatus, TxErr);
- }
-
- boguscnt--;
- } while (boguscnt > 0);
-
- if (boguscnt <= 0) {
- printk (KERN_WARNING "%s: Too much work at interrupt, "
- "IntrStatus=0x%4.4x.\n", dev->name, status);
-
- /* Clear all interrupt sources. */
- RTL_W16 (IntrStatus, 0xffff);
- }
-
- spin_unlock (&tp->lock);
-
- DPRINTK ("%s: exiting interrupt, intr_status=%#4.4x.\n",
- dev->name, RTL_R16 (IntrStatus));
-}
-
-
-static int rtl8139_close (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
- unsigned long flags;
-
- netif_stop_queue (dev);
-
- DPRINTK ("%s: Shutting down ethercard, status was 0x%4.4x.\n",
- dev->name, RTL_R16 (IntrStatus));
-
- spin_lock_irqsave (&tp->lock, flags);
-
- /* Stop the chip's Tx and Rx DMA processes. */
- RTL_W8 (ChipCmd, 0);
-
- /* Disable interrupts by clearing the interrupt mask. */
- RTL_W16 (IntrMask, 0);
-
- /* Update the error counts. */
- tp->stats.rx_missed_errors += RTL_R32 (RxMissed);
- RTL_W32 (RxMissed, 0);
-
- spin_unlock_irqrestore (&tp->lock, flags);
-
- synchronize_irq ();
- free_irq (dev->irq, dev);
-
- rtl8139_tx_clear (tp);
-
- pci_free_consistent(tp->pci_dev, RX_BUF_TOT_LEN,
- tp->rx_ring, tp->rx_ring_dma);
- pci_free_consistent(tp->pci_dev, TX_BUF_TOT_LEN,
- tp->tx_bufs, tp->tx_bufs_dma);
- tp->rx_ring = NULL;
- tp->tx_bufs = NULL;
-
- /* Green! Put the chip in low-power mode. */
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
-
- if (rtl_chip_info[tp->chipset].flags & HasHltClk)
- RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */
-
- return 0;
-}
-
-
-/* Get the ethtool settings. Assumes that eset points to kernel
- memory, *eset has been initialized as {ETHTOOL_GSET}, and other
- threads or interrupts aren't messing with the 8139. */
-static void netdev_get_eset (struct net_device *dev, struct ethtool_cmd *eset)
-{
- struct rtl8139_private *np = dev->priv;
- void *ioaddr = np->mmio_addr;
- u16 advert;
-
- eset->supported = SUPPORTED_10baseT_Half
- | SUPPORTED_10baseT_Full
- | SUPPORTED_100baseT_Half
- | SUPPORTED_100baseT_Full
- | SUPPORTED_Autoneg
- | SUPPORTED_TP;
-
- eset->advertising = ADVERTISED_TP | ADVERTISED_Autoneg;
- advert = mdio_read (dev, np->phys[0], 4);
- if (advert & 0x0020)
- eset->advertising |= ADVERTISED_10baseT_Half;
- if (advert & 0x0040)
- eset->advertising |= ADVERTISED_10baseT_Full;
- if (advert & 0x0080)
- eset->advertising |= ADVERTISED_100baseT_Half;
- if (advert & 0x0100)
- eset->advertising |= ADVERTISED_100baseT_Full;
-
- eset->speed = (RTL_R8 (MediaStatus) & 0x08) ? 10 : 100;
- /* (KON)FIXME: np->full_duplex is set or reset by the thread,
- which means this always shows half duplex if the interface
- isn't up yet, even if it has already autonegotiated. */
- eset->duplex = np->full_duplex ? DUPLEX_FULL : DUPLEX_HALF;
- eset->port = PORT_TP;
- /* (KON)FIXME: Is np->phys[0] correct? starfire.c uses that. */
- eset->phy_address = np->phys[0];
- eset->transceiver = XCVR_INTERNAL;
- eset->autoneg = (mdio_read (dev, np->phys[0], 0) & 0x1000) != 0;
- eset->maxtxpkt = 1;
- eset->maxrxpkt = 1;
-}
-
-
-/* Get the ethtool Wake-on-LAN settings. Assumes that wol points to
- kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and
- other threads or interrupts aren't messing with the 8139. */
-static void netdev_get_wol (struct net_device *dev, struct ethtool_wolinfo *wol)
-{
- struct rtl8139_private *np = dev->priv;
- void *ioaddr = np->mmio_addr;
-
- if (rtl_chip_info[np->chipset].flags & HasLWake) {
- u8 cfg3 = RTL_R8 (Config3);
- u8 cfg5 = RTL_R8 (Config5);
-
- wol->supported = WAKE_PHY | WAKE_MAGIC
- | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST;
-
- wol->wolopts = 0;
- if (cfg3 & Cfg3_LinkUp)
- wol->wolopts |= WAKE_PHY;
- if (cfg3 & Cfg3_Magic)
- wol->wolopts |= WAKE_MAGIC;
- /* (KON)FIXME: See how netdev_set_wol() handles the
- following constants. */
- if (cfg5 & Cfg5_UWF)
- wol->wolopts |= WAKE_UCAST;
- if (cfg5 & Cfg5_MWF)
- wol->wolopts |= WAKE_MCAST;
- if (cfg5 & Cfg5_BWF)
- wol->wolopts |= WAKE_BCAST;
- }
-}
-
-
-/* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes
- that wol points to kernel memory and other threads or interrupts
- aren't messing with the 8139. */
-static int netdev_set_wol (struct net_device *dev,
- const struct ethtool_wolinfo *wol)
-{
- struct rtl8139_private *np = dev->priv;
- void *ioaddr = np->mmio_addr;
- u32 support;
- u8 cfg3, cfg5;
-
- support = ((rtl_chip_info[np->chipset].flags & HasLWake)
- ? (WAKE_PHY | WAKE_MAGIC
- | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST)
- : 0);
- if (wol->wolopts & ~support)
- return -EINVAL;
-
- cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic);
- if (wol->wolopts & WAKE_PHY)
- cfg3 |= Cfg3_LinkUp;
- if (wol->wolopts & WAKE_MAGIC)
- cfg3 |= Cfg3_Magic;
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W8 (Config3, cfg3);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
-
- cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF);
- /* (KON)FIXME: These are untested. We may have to set the
- CRC0, Wakeup0 and LSBCRC0 registers too, but I have no
- documentation. */
- if (wol->wolopts & WAKE_UCAST)
- cfg5 |= Cfg5_UWF;
- if (wol->wolopts & WAKE_MCAST)
- cfg5 |= Cfg5_MWF;
- if (wol->wolopts & WAKE_BCAST)
- cfg5 |= Cfg5_BWF;
- RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */
-
- return 0;
-}
-
-
-static int netdev_ethtool_ioctl (struct net_device *dev, void *useraddr)
-{
- struct rtl8139_private *np = dev->priv;
- u32 ethcmd;
-
- /* dev_ioctl() in ../../net/core/dev.c has already checked
- capable(CAP_NET_ADMIN), so don't bother with that here. */
-
- if (copy_from_user (ðcmd, useraddr, sizeof (ethcmd)))
- return -EFAULT;
-
- switch (ethcmd) {
- case ETHTOOL_GSET:
- {
- struct ethtool_cmd eset = { ETHTOOL_GSET };
- spin_lock_irq (&np->lock);
- netdev_get_eset (dev, &eset);
- spin_unlock_irq (&np->lock);
- if (copy_to_user (useraddr, &eset, sizeof (eset)))
- return -EFAULT;
- return 0;
- }
-
- /* TODO: ETHTOOL_SSET */
-
- case ETHTOOL_GDRVINFO:
- {
- struct ethtool_drvinfo info = { ETHTOOL_GDRVINFO };
- strcpy (info.driver, DRV_NAME);
- strcpy (info.version, DRV_VERSION);
- strcpy (info.bus_info, np->pci_dev->slot_name);
- if (copy_to_user (useraddr, &info, sizeof (info)))
- return -EFAULT;
- return 0;
- }
-
- case ETHTOOL_GWOL:
- {
- struct ethtool_wolinfo wol = { ETHTOOL_GWOL };
- spin_lock_irq (&np->lock);
- netdev_get_wol (dev, &wol);
- spin_unlock_irq (&np->lock);
- if (copy_to_user (useraddr, &wol, sizeof (wol)))
- return -EFAULT;
- return 0;
- }
-
- case ETHTOOL_SWOL:
- {
- struct ethtool_wolinfo wol;
- int rc;
- if (copy_from_user (&wol, useraddr, sizeof (wol)))
- return -EFAULT;
- spin_lock_irq (&np->lock);
- rc = netdev_set_wol (dev, &wol);
- spin_unlock_irq (&np->lock);
- return rc;
- }
-
- default:
- break;
- }
-
- return -EOPNOTSUPP;
-}
-
-
-static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct rtl8139_private *tp = dev->priv;
- struct mii_ioctl_data *data = (struct mii_ioctl_data *)&rq->ifr_data;
- int rc = 0;
- int phy = tp->phys[0] & 0x3f;
-
- if (cmd != SIOCETHTOOL) {
- /* With SIOCETHTOOL, this would corrupt the pointer. */
- data->phy_id &= 0x1f;
- data->reg_num &= 0x1f;
- }
-
- switch (cmd) {
- case SIOCETHTOOL:
- return netdev_ethtool_ioctl(dev, (void *) rq->ifr_data);
-
- case SIOCGMIIPHY: /* Get the address of the PHY in use. */
- case SIOCDEVPRIVATE: /* binary compat, remove in 2.5 */
- data->phy_id = phy;
- /* Fall Through */
-
- case SIOCGMIIREG: /* Read the specified MII register. */
- case SIOCDEVPRIVATE+1: /* binary compat, remove in 2.5 */
- data->val_out = mdio_read (dev, data->phy_id, data->reg_num);
- break;
-
- case SIOCSMIIREG: /* Write the specified MII register */
- case SIOCDEVPRIVATE+2: /* binary compat, remove in 2.5 */
- if (!capable (CAP_NET_ADMIN)) {
- rc = -EPERM;
- break;
- }
-
- if (data->phy_id == phy) {
- u16 value = data->val_in;
- switch (data->reg_num) {
- case 0:
- /* Check for autonegotiation on or reset. */
- tp->medialock = (value & 0x9000) ? 0 : 1;
- if (tp->medialock)
- tp->full_duplex = (value & 0x0100) ? 1 : 0;
- break;
- case 4: /* tp->advertising = value; */ break;
- }
- }
- mdio_write(dev, data->phy_id, data->reg_num, data->val_in);
- break;
-
- default:
- rc = -EOPNOTSUPP;
- break;
- }
-
- return rc;
-}
-
-
-static struct net_device_stats *rtl8139_get_stats (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
- unsigned long flags;
-
- if (netif_running(dev)) {
- spin_lock_irqsave (&tp->lock, flags);
- tp->stats.rx_missed_errors += RTL_R32 (RxMissed);
- RTL_W32 (RxMissed, 0);
- spin_unlock_irqrestore (&tp->lock, flags);
- }
-
- return &tp->stats;
-}
-
-/* Set or clear the multicast filter for this adaptor.
- This routine is not state sensitive and need not be SMP locked. */
-
-static unsigned const ethernet_polynomial = 0x04c11db7U;
-static inline u32 ether_crc (int length, unsigned char *data)
-{
- int crc = -1;
-
- while (--length >= 0) {
- unsigned char current_octet = *data++;
- int bit;
- for (bit = 0; bit < 8; bit++, current_octet >>= 1)
- crc = (crc << 1) ^ ((crc < 0) ^ (current_octet & 1) ?
- ethernet_polynomial : 0);
- }
-
- return crc;
-}
-
-
-static void __set_rx_mode (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
- u32 mc_filter[2]; /* Multicast hash filter */
- int i, rx_mode;
- u32 tmp;
-
- DPRINTK ("%s: rtl8139_set_rx_mode(%4.4x) done -- Rx config %8.8lx.\n",
- dev->name, dev->flags, RTL_R32 (RxConfig));
-
- /* Note: do not reorder, GCC is clever about common statements. */
- if (dev->flags & IFF_PROMISC) {
- /* Unconditionally log net taps. */
- printk (KERN_NOTICE "%s: Promiscuous mode enabled.\n",
- dev->name);
- rx_mode =
- AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
- AcceptAllPhys;
- mc_filter[1] = mc_filter[0] = 0xffffffff;
- } else if ((dev->mc_count > multicast_filter_limit)
- || (dev->flags & IFF_ALLMULTI)) {
- /* Too many to filter perfectly -- accept all multicasts. */
- rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
- mc_filter[1] = mc_filter[0] = 0xffffffff;
- } else {
- struct dev_mc_list *mclist;
- rx_mode = AcceptBroadcast | AcceptMyPhys;
- mc_filter[1] = mc_filter[0] = 0;
- for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
- i++, mclist = mclist->next) {
- int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
-
- mc_filter[bit_nr >> 5] |= cpu_to_le32(1 << (bit_nr & 31));
- rx_mode |= AcceptMulticast;
- }
- }
-
- /* We can safely update without stopping the chip. */
- tmp = rtl8139_rx_config | rx_mode;
- if (tp->rx_config != tmp) {
- RTL_W32_F (RxConfig, tmp);
- tp->rx_config = tmp;
- }
- RTL_W32_F (MAR0 + 0, mc_filter[0]);
- RTL_W32_F (MAR0 + 4, mc_filter[1]);
-}
-
-static void rtl8139_set_rx_mode (struct net_device *dev)
-{
- unsigned long flags;
- struct rtl8139_private *tp = dev->priv;
-
- spin_lock_irqsave (&tp->lock, flags);
- __set_rx_mode(dev);
- spin_unlock_irqrestore (&tp->lock, flags);
-}
-
-#ifdef CONFIG_PM
-
-static int rtl8139_suspend (struct pci_dev *pdev, u32 state)
-{
- struct net_device *dev = pci_get_drvdata (pdev);
- struct rtl8139_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
- unsigned long flags;
-
- if (!netif_running (dev))
- return 0;
-
- netif_device_detach (dev);
-
- spin_lock_irqsave (&tp->lock, flags);
-
- /* Disable interrupts, stop Tx and Rx. */
- RTL_W16 (IntrMask, 0);
- RTL_W8 (ChipCmd, 0);
-
- /* Update the error counts. */
- tp->stats.rx_missed_errors += RTL_R32 (RxMissed);
- RTL_W32 (RxMissed, 0);
-
- spin_unlock_irqrestore (&tp->lock, flags);
- return 0;
-}
-
-
-static int rtl8139_resume (struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata (pdev);
-
- if (!netif_running (dev))
- return 0;
- netif_device_attach (dev);
- rtl8139_hw_start (dev);
- return 0;
-}
-
-#endif /* CONFIG_PM */
-
-
-static struct pci_driver rtl8139_pci_driver = {
- name: DRV_NAME,
- id_table: rtl8139_pci_tbl,
- probe: rtl8139_init_one,
- remove: __devexit_p(rtl8139_remove_one),
-#ifdef CONFIG_PM
- suspend: rtl8139_suspend,
- resume: rtl8139_resume,
-#endif /* CONFIG_PM */
-};
-
-
-static int __init rtl8139_init_module (void)
-{
- /* when we're a module, we always print a version message,
- * even if no 8139 board is found.
- */
-#ifdef MODULE
- printk (KERN_INFO RTL8139_DRIVER_NAME "\n");
-#endif
-
- return pci_module_init (&rtl8139_pci_driver);
-}
-
-
-static void __exit rtl8139_cleanup_module (void)
-{
- pci_unregister_driver (&rtl8139_pci_driver);
-}
-
-
-module_init(rtl8139_init_module);
-module_exit(rtl8139_cleanup_module);
projects / xen.git / commitdiff