1 /* pcnet32.c: An AMD PCnet32 ethernet driver for linux. */
3 * Copyright 1996-1999 Thomas Bogendoerfer
5 * Derived from the lance driver written 1993,1994,1995 by Donald Becker.
7 * Copyright 1993 United States Government as represented by the
8 * Director, National Security Agency.
10 * This software may be used and distributed according to the terms
11 * of the GNU General Public License, incorporated herein by reference.
13 * This driver is for PCnet32 and PCnetPCI based ethercards
15 /**************************************************************************
17 * Fixed a few bugs, related to running the controller in 32bit mode.
19 * Carsten Langgaard, carstenl@mips.com
20 * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
22 *************************************************************************/
24 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
26 #define DRV_NAME "pcnet32"
27 #define DRV_VERSION "1.35"
28 #define DRV_RELDATE "21.Apr.2008"
29 #define PFX DRV_NAME ": "
31 static const char *const version =
32 DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " tsbogend@alpha.franken.de\n";
34 #include <linux/module.h>
35 #include <linux/kernel.h>
36 #include <linux/sched.h>
37 #include <linux/string.h>
38 #include <linux/errno.h>
39 #include <linux/ioport.h>
40 #include <linux/slab.h>
41 #include <linux/interrupt.h>
42 #include <linux/pci.h>
43 #include <linux/delay.h>
44 #include <linux/init.h>
45 #include <linux/ethtool.h>
46 #include <linux/mii.h>
47 #include <linux/crc32.h>
48 #include <linux/netdevice.h>
49 #include <linux/etherdevice.h>
50 #include <linux/if_ether.h>
51 #include <linux/skbuff.h>
52 #include <linux/spinlock.h>
53 #include <linux/moduleparam.h>
54 #include <linux/bitops.h>
56 #include <linux/uaccess.h>
62 * PCI device identifiers for "new style" Linux PCI Device Drivers
64 static DEFINE_PCI_DEVICE_TABLE(pcnet32_pci_tbl) = {
65 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE_HOME), },
66 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE), },
69 * Adapters that were sold with IBM's RS/6000 or pSeries hardware have
70 * the incorrect vendor id.
72 { PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_AMD_LANCE),
73 .class = (PCI_CLASS_NETWORK_ETHERNET << 8), .class_mask = 0xffff00, },
75 { } /* terminate list */
78 MODULE_DEVICE_TABLE(pci, pcnet32_pci_tbl);
80 static int cards_found;
85 static unsigned int pcnet32_portlist[] __initdata =
86 { 0x300, 0x320, 0x340, 0x360, 0 };
88 static int pcnet32_debug;
89 static int tx_start = 1; /* Mapping -- 0:20, 1:64, 2:128, 3:~220 (depends on chip vers) */
90 static int pcnet32vlb; /* check for VLB cards ? */
92 static struct net_device *pcnet32_dev;
94 static int max_interrupt_work = 2;
95 static int rx_copybreak = 200;
97 #define PCNET32_PORT_AUI 0x00
98 #define PCNET32_PORT_10BT 0x01
99 #define PCNET32_PORT_GPSI 0x02
100 #define PCNET32_PORT_MII 0x03
102 #define PCNET32_PORT_PORTSEL 0x03
103 #define PCNET32_PORT_ASEL 0x04
104 #define PCNET32_PORT_100 0x40
105 #define PCNET32_PORT_FD 0x80
107 #define PCNET32_DMA_MASK 0xffffffff
109 #define PCNET32_WATCHDOG_TIMEOUT (jiffies + (2 * HZ))
110 #define PCNET32_BLINK_TIMEOUT (jiffies + (HZ/4))
113 * table to translate option values from tulip
114 * to internal options
116 static const unsigned char options_mapping[] = {
117 PCNET32_PORT_ASEL, /* 0 Auto-select */
118 PCNET32_PORT_AUI, /* 1 BNC/AUI */
119 PCNET32_PORT_AUI, /* 2 AUI/BNC */
120 PCNET32_PORT_ASEL, /* 3 not supported */
121 PCNET32_PORT_10BT | PCNET32_PORT_FD, /* 4 10baseT-FD */
122 PCNET32_PORT_ASEL, /* 5 not supported */
123 PCNET32_PORT_ASEL, /* 6 not supported */
124 PCNET32_PORT_ASEL, /* 7 not supported */
125 PCNET32_PORT_ASEL, /* 8 not supported */
126 PCNET32_PORT_MII, /* 9 MII 10baseT */
127 PCNET32_PORT_MII | PCNET32_PORT_FD, /* 10 MII 10baseT-FD */
128 PCNET32_PORT_MII, /* 11 MII (autosel) */
129 PCNET32_PORT_10BT, /* 12 10BaseT */
130 PCNET32_PORT_MII | PCNET32_PORT_100, /* 13 MII 100BaseTx */
131 /* 14 MII 100BaseTx-FD */
132 PCNET32_PORT_MII | PCNET32_PORT_100 | PCNET32_PORT_FD,
133 PCNET32_PORT_ASEL /* 15 not supported */
136 static const char pcnet32_gstrings_test[][ETH_GSTRING_LEN] = {
137 "Loopback test (offline)"
140 #define PCNET32_TEST_LEN ARRAY_SIZE(pcnet32_gstrings_test)
142 #define PCNET32_NUM_REGS 136
144 #define MAX_UNITS 8 /* More are supported, limit only on options */
145 static int options[MAX_UNITS];
146 static int full_duplex[MAX_UNITS];
147 static int homepna[MAX_UNITS];
150 * Theory of Operation
152 * This driver uses the same software structure as the normal lance
153 * driver. So look for a verbose description in lance.c. The differences
154 * to the normal lance driver is the use of the 32bit mode of PCnet32
155 * and PCnetPCI chips. Because these chips are 32bit chips, there is no
156 * 16MB limitation and we don't need bounce buffers.
160 * Set the number of Tx and Rx buffers, using Log_2(# buffers).
161 * Reasonable default values are 4 Tx buffers, and 16 Rx buffers.
162 * That translates to 2 (4 == 2^^2) and 4 (16 == 2^^4).
164 #ifndef PCNET32_LOG_TX_BUFFERS
165 #define PCNET32_LOG_TX_BUFFERS 4
166 #define PCNET32_LOG_RX_BUFFERS 5
167 #define PCNET32_LOG_MAX_TX_BUFFERS 9 /* 2^9 == 512 */
168 #define PCNET32_LOG_MAX_RX_BUFFERS 9
171 #define TX_RING_SIZE (1 << (PCNET32_LOG_TX_BUFFERS))
172 #define TX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_TX_BUFFERS))
174 #define RX_RING_SIZE (1 << (PCNET32_LOG_RX_BUFFERS))
175 #define RX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_RX_BUFFERS))
177 #define PKT_BUF_SKB 1544
178 /* actual buffer length after being aligned */
179 #define PKT_BUF_SIZE (PKT_BUF_SKB - NET_IP_ALIGN)
180 /* chip wants twos complement of the (aligned) buffer length */
181 #define NEG_BUF_SIZE (NET_IP_ALIGN - PKT_BUF_SKB)
183 /* Offsets from base I/O address. */
184 #define PCNET32_WIO_RDP 0x10
185 #define PCNET32_WIO_RAP 0x12
186 #define PCNET32_WIO_RESET 0x14
187 #define PCNET32_WIO_BDP 0x16
189 #define PCNET32_DWIO_RDP 0x10
190 #define PCNET32_DWIO_RAP 0x14
191 #define PCNET32_DWIO_RESET 0x18
192 #define PCNET32_DWIO_BDP 0x1C
194 #define PCNET32_TOTAL_SIZE 0x20
197 #define CSR0_INIT 0x1
198 #define CSR0_START 0x2
199 #define CSR0_STOP 0x4
200 #define CSR0_TXPOLL 0x8
201 #define CSR0_INTEN 0x40
202 #define CSR0_IDON 0x0100
203 #define CSR0_NORMAL (CSR0_START | CSR0_INTEN)
204 #define PCNET32_INIT_LOW 1
205 #define PCNET32_INIT_HIGH 2
209 #define CSR5_SUSPEND 0x0001
211 #define PCNET32_MC_FILTER 8
213 #define PCNET32_79C970A 0x2621
215 /* The PCNET32 Rx and Tx ring descriptors. */
216 struct pcnet32_rx_head {
218 __le16 buf_length; /* two`s complement of length */
224 struct pcnet32_tx_head {
226 __le16 length; /* two`s complement of length */
232 /* The PCNET32 32-Bit initialization block, described in databook. */
233 struct pcnet32_init_block {
239 /* Receive and transmit ring base, along with extra bits. */
244 /* PCnet32 access functions */
245 struct pcnet32_access {
246 u16 (*read_csr) (unsigned long, int);
247 void (*write_csr) (unsigned long, int, u16);
248 u16 (*read_bcr) (unsigned long, int);
249 void (*write_bcr) (unsigned long, int, u16);
250 u16 (*read_rap) (unsigned long);
251 void (*write_rap) (unsigned long, u16);
252 void (*reset) (unsigned long);
256 * The first field of pcnet32_private is read by the ethernet device
257 * so the structure should be allocated using pci_alloc_consistent().
259 struct pcnet32_private {
260 struct pcnet32_init_block *init_block;
261 /* The Tx and Rx ring entries must be aligned on 16-byte boundaries in 32bit mode. */
262 struct pcnet32_rx_head *rx_ring;
263 struct pcnet32_tx_head *tx_ring;
264 dma_addr_t init_dma_addr;/* DMA address of beginning of the init block,
265 returned by pci_alloc_consistent */
266 struct pci_dev *pci_dev;
268 /* The saved address of a sent-in-place packet/buffer, for skfree(). */
269 struct sk_buff **tx_skbuff;
270 struct sk_buff **rx_skbuff;
271 dma_addr_t *tx_dma_addr;
272 dma_addr_t *rx_dma_addr;
273 struct pcnet32_access a;
274 spinlock_t lock; /* Guard lock */
275 unsigned int cur_rx, cur_tx; /* The next free ring entry */
276 unsigned int rx_ring_size; /* current rx ring size */
277 unsigned int tx_ring_size; /* current tx ring size */
278 unsigned int rx_mod_mask; /* rx ring modular mask */
279 unsigned int tx_mod_mask; /* tx ring modular mask */
280 unsigned short rx_len_bits;
281 unsigned short tx_len_bits;
282 dma_addr_t rx_ring_dma_addr;
283 dma_addr_t tx_ring_dma_addr;
284 unsigned int dirty_rx, /* ring entries to be freed. */
287 struct net_device *dev;
288 struct napi_struct napi;
290 char phycount; /* number of phys found */
292 unsigned int shared_irq:1, /* shared irq possible */
293 dxsuflo:1, /* disable transmit stop on uflo */
294 mii:1; /* mii port available */
295 struct net_device *next;
296 struct mii_if_info mii_if;
297 struct timer_list watchdog_timer;
298 u32 msg_enable; /* debug message level */
300 /* each bit indicates an available PHY */
302 unsigned short chip_version; /* which variant this is */
304 /* saved registers during ethtool blink */
308 static int pcnet32_probe_pci(struct pci_dev *, const struct pci_device_id *);
309 static int pcnet32_probe1(unsigned long, int, struct pci_dev *);
310 static int pcnet32_open(struct net_device *);
311 static int pcnet32_init_ring(struct net_device *);
312 static netdev_tx_t pcnet32_start_xmit(struct sk_buff *,
313 struct net_device *);
314 static void pcnet32_tx_timeout(struct net_device *dev);
315 static irqreturn_t pcnet32_interrupt(int, void *);
316 static int pcnet32_close(struct net_device *);
317 static struct net_device_stats *pcnet32_get_stats(struct net_device *);
318 static void pcnet32_load_multicast(struct net_device *dev);
319 static void pcnet32_set_multicast_list(struct net_device *);
320 static int pcnet32_ioctl(struct net_device *, struct ifreq *, int);
321 static void pcnet32_watchdog(struct net_device *);
322 static int mdio_read(struct net_device *dev, int phy_id, int reg_num);
323 static void mdio_write(struct net_device *dev, int phy_id, int reg_num,
325 static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits);
326 static void pcnet32_ethtool_test(struct net_device *dev,
327 struct ethtool_test *eth_test, u64 * data);
328 static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1);
329 static int pcnet32_get_regs_len(struct net_device *dev);
330 static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs,
332 static void pcnet32_purge_tx_ring(struct net_device *dev);
333 static int pcnet32_alloc_ring(struct net_device *dev, const char *name);
334 static void pcnet32_free_ring(struct net_device *dev);
335 static void pcnet32_check_media(struct net_device *dev, int verbose);
337 static u16 pcnet32_wio_read_csr(unsigned long addr, int index)
339 outw(index, addr + PCNET32_WIO_RAP);
340 return inw(addr + PCNET32_WIO_RDP);
343 static void pcnet32_wio_write_csr(unsigned long addr, int index, u16 val)
345 outw(index, addr + PCNET32_WIO_RAP);
346 outw(val, addr + PCNET32_WIO_RDP);
349 static u16 pcnet32_wio_read_bcr(unsigned long addr, int index)
351 outw(index, addr + PCNET32_WIO_RAP);
352 return inw(addr + PCNET32_WIO_BDP);
355 static void pcnet32_wio_write_bcr(unsigned long addr, int index, u16 val)
357 outw(index, addr + PCNET32_WIO_RAP);
358 outw(val, addr + PCNET32_WIO_BDP);
361 static u16 pcnet32_wio_read_rap(unsigned long addr)
363 return inw(addr + PCNET32_WIO_RAP);
366 static void pcnet32_wio_write_rap(unsigned long addr, u16 val)
368 outw(val, addr + PCNET32_WIO_RAP);
371 static void pcnet32_wio_reset(unsigned long addr)
373 inw(addr + PCNET32_WIO_RESET);
376 static int pcnet32_wio_check(unsigned long addr)
378 outw(88, addr + PCNET32_WIO_RAP);
379 return inw(addr + PCNET32_WIO_RAP) == 88;
382 static struct pcnet32_access pcnet32_wio = {
383 .read_csr = pcnet32_wio_read_csr,
384 .write_csr = pcnet32_wio_write_csr,
385 .read_bcr = pcnet32_wio_read_bcr,
386 .write_bcr = pcnet32_wio_write_bcr,
387 .read_rap = pcnet32_wio_read_rap,
388 .write_rap = pcnet32_wio_write_rap,
389 .reset = pcnet32_wio_reset
392 static u16 pcnet32_dwio_read_csr(unsigned long addr, int index)
394 outl(index, addr + PCNET32_DWIO_RAP);
395 return inl(addr + PCNET32_DWIO_RDP) & 0xffff;
398 static void pcnet32_dwio_write_csr(unsigned long addr, int index, u16 val)
400 outl(index, addr + PCNET32_DWIO_RAP);
401 outl(val, addr + PCNET32_DWIO_RDP);
404 static u16 pcnet32_dwio_read_bcr(unsigned long addr, int index)
406 outl(index, addr + PCNET32_DWIO_RAP);
407 return inl(addr + PCNET32_DWIO_BDP) & 0xffff;
410 static void pcnet32_dwio_write_bcr(unsigned long addr, int index, u16 val)
412 outl(index, addr + PCNET32_DWIO_RAP);
413 outl(val, addr + PCNET32_DWIO_BDP);
416 static u16 pcnet32_dwio_read_rap(unsigned long addr)
418 return inl(addr + PCNET32_DWIO_RAP) & 0xffff;
421 static void pcnet32_dwio_write_rap(unsigned long addr, u16 val)
423 outl(val, addr + PCNET32_DWIO_RAP);
426 static void pcnet32_dwio_reset(unsigned long addr)
428 inl(addr + PCNET32_DWIO_RESET);
431 static int pcnet32_dwio_check(unsigned long addr)
433 outl(88, addr + PCNET32_DWIO_RAP);
434 return (inl(addr + PCNET32_DWIO_RAP) & 0xffff) == 88;
437 static struct pcnet32_access pcnet32_dwio = {
438 .read_csr = pcnet32_dwio_read_csr,
439 .write_csr = pcnet32_dwio_write_csr,
440 .read_bcr = pcnet32_dwio_read_bcr,
441 .write_bcr = pcnet32_dwio_write_bcr,
442 .read_rap = pcnet32_dwio_read_rap,
443 .write_rap = pcnet32_dwio_write_rap,
444 .reset = pcnet32_dwio_reset
447 static void pcnet32_netif_stop(struct net_device *dev)
449 struct pcnet32_private *lp = netdev_priv(dev);
451 dev->trans_start = jiffies; /* prevent tx timeout */
452 napi_disable(&lp->napi);
453 netif_tx_disable(dev);
456 static void pcnet32_netif_start(struct net_device *dev)
458 struct pcnet32_private *lp = netdev_priv(dev);
459 ulong ioaddr = dev->base_addr;
462 netif_wake_queue(dev);
463 val = lp->a.read_csr(ioaddr, CSR3);
465 lp->a.write_csr(ioaddr, CSR3, val);
466 napi_enable(&lp->napi);
470 * Allocate space for the new sized tx ring.
472 * Save new resources.
473 * Any failure keeps old resources.
474 * Must be called with lp->lock held.
476 static void pcnet32_realloc_tx_ring(struct net_device *dev,
477 struct pcnet32_private *lp,
480 dma_addr_t new_ring_dma_addr;
481 dma_addr_t *new_dma_addr_list;
482 struct pcnet32_tx_head *new_tx_ring;
483 struct sk_buff **new_skb_list;
485 pcnet32_purge_tx_ring(dev);
487 new_tx_ring = pci_alloc_consistent(lp->pci_dev,
488 sizeof(struct pcnet32_tx_head) *
491 if (new_tx_ring == NULL) {
492 netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
495 memset(new_tx_ring, 0, sizeof(struct pcnet32_tx_head) * (1 << size));
497 new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t),
499 if (!new_dma_addr_list) {
500 netif_err(lp, drv, dev, "Memory allocation failed\n");
501 goto free_new_tx_ring;
504 new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *),
507 netif_err(lp, drv, dev, "Memory allocation failed\n");
511 kfree(lp->tx_skbuff);
512 kfree(lp->tx_dma_addr);
513 pci_free_consistent(lp->pci_dev,
514 sizeof(struct pcnet32_tx_head) *
515 lp->tx_ring_size, lp->tx_ring,
516 lp->tx_ring_dma_addr);
518 lp->tx_ring_size = (1 << size);
519 lp->tx_mod_mask = lp->tx_ring_size - 1;
520 lp->tx_len_bits = (size << 12);
521 lp->tx_ring = new_tx_ring;
522 lp->tx_ring_dma_addr = new_ring_dma_addr;
523 lp->tx_dma_addr = new_dma_addr_list;
524 lp->tx_skbuff = new_skb_list;
528 kfree(new_dma_addr_list);
530 pci_free_consistent(lp->pci_dev,
531 sizeof(struct pcnet32_tx_head) *
538 * Allocate space for the new sized rx ring.
539 * Re-use old receive buffers.
540 * alloc extra buffers
541 * free unneeded buffers
542 * free unneeded buffers
543 * Save new resources.
544 * Any failure keeps old resources.
545 * Must be called with lp->lock held.
547 static void pcnet32_realloc_rx_ring(struct net_device *dev,
548 struct pcnet32_private *lp,
551 dma_addr_t new_ring_dma_addr;
552 dma_addr_t *new_dma_addr_list;
553 struct pcnet32_rx_head *new_rx_ring;
554 struct sk_buff **new_skb_list;
557 new_rx_ring = pci_alloc_consistent(lp->pci_dev,
558 sizeof(struct pcnet32_rx_head) *
561 if (new_rx_ring == NULL) {
562 netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
565 memset(new_rx_ring, 0, sizeof(struct pcnet32_rx_head) * (1 << size));
567 new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t),
569 if (!new_dma_addr_list) {
570 netif_err(lp, drv, dev, "Memory allocation failed\n");
571 goto free_new_rx_ring;
574 new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *),
577 netif_err(lp, drv, dev, "Memory allocation failed\n");
581 /* first copy the current receive buffers */
582 overlap = min(size, lp->rx_ring_size);
583 for (new = 0; new < overlap; new++) {
584 new_rx_ring[new] = lp->rx_ring[new];
585 new_dma_addr_list[new] = lp->rx_dma_addr[new];
586 new_skb_list[new] = lp->rx_skbuff[new];
588 /* now allocate any new buffers needed */
589 for (; new < size; new++) {
590 struct sk_buff *rx_skbuff;
591 new_skb_list[new] = dev_alloc_skb(PKT_BUF_SKB);
592 rx_skbuff = new_skb_list[new];
594 /* keep the original lists and buffers */
595 netif_err(lp, drv, dev, "%s dev_alloc_skb failed\n",
599 skb_reserve(rx_skbuff, NET_IP_ALIGN);
601 new_dma_addr_list[new] =
602 pci_map_single(lp->pci_dev, rx_skbuff->data,
603 PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
604 new_rx_ring[new].base = cpu_to_le32(new_dma_addr_list[new]);
605 new_rx_ring[new].buf_length = cpu_to_le16(NEG_BUF_SIZE);
606 new_rx_ring[new].status = cpu_to_le16(0x8000);
608 /* and free any unneeded buffers */
609 for (; new < lp->rx_ring_size; new++) {
610 if (lp->rx_skbuff[new]) {
611 pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[new],
612 PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
613 dev_kfree_skb(lp->rx_skbuff[new]);
617 kfree(lp->rx_skbuff);
618 kfree(lp->rx_dma_addr);
619 pci_free_consistent(lp->pci_dev,
620 sizeof(struct pcnet32_rx_head) *
621 lp->rx_ring_size, lp->rx_ring,
622 lp->rx_ring_dma_addr);
624 lp->rx_ring_size = (1 << size);
625 lp->rx_mod_mask = lp->rx_ring_size - 1;
626 lp->rx_len_bits = (size << 4);
627 lp->rx_ring = new_rx_ring;
628 lp->rx_ring_dma_addr = new_ring_dma_addr;
629 lp->rx_dma_addr = new_dma_addr_list;
630 lp->rx_skbuff = new_skb_list;
634 while (--new >= lp->rx_ring_size) {
635 if (new_skb_list[new]) {
636 pci_unmap_single(lp->pci_dev, new_dma_addr_list[new],
637 PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
638 dev_kfree_skb(new_skb_list[new]);
643 kfree(new_dma_addr_list);
645 pci_free_consistent(lp->pci_dev,
646 sizeof(struct pcnet32_rx_head) *
652 static void pcnet32_purge_rx_ring(struct net_device *dev)
654 struct pcnet32_private *lp = netdev_priv(dev);
657 /* free all allocated skbuffs */
658 for (i = 0; i < lp->rx_ring_size; i++) {
659 lp->rx_ring[i].status = 0; /* CPU owns buffer */
660 wmb(); /* Make sure adapter sees owner change */
661 if (lp->rx_skbuff[i]) {
662 pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[i],
663 PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
664 dev_kfree_skb_any(lp->rx_skbuff[i]);
666 lp->rx_skbuff[i] = NULL;
667 lp->rx_dma_addr[i] = 0;
671 #ifdef CONFIG_NET_POLL_CONTROLLER
672 static void pcnet32_poll_controller(struct net_device *dev)
674 disable_irq(dev->irq);
675 pcnet32_interrupt(0, dev);
676 enable_irq(dev->irq);
680 static int pcnet32_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
682 struct pcnet32_private *lp = netdev_priv(dev);
687 spin_lock_irqsave(&lp->lock, flags);
688 mii_ethtool_gset(&lp->mii_if, cmd);
689 spin_unlock_irqrestore(&lp->lock, flags);
695 static int pcnet32_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
697 struct pcnet32_private *lp = netdev_priv(dev);
702 spin_lock_irqsave(&lp->lock, flags);
703 r = mii_ethtool_sset(&lp->mii_if, cmd);
704 spin_unlock_irqrestore(&lp->lock, flags);
709 static void pcnet32_get_drvinfo(struct net_device *dev,
710 struct ethtool_drvinfo *info)
712 struct pcnet32_private *lp = netdev_priv(dev);
714 strcpy(info->driver, DRV_NAME);
715 strcpy(info->version, DRV_VERSION);
717 strcpy(info->bus_info, pci_name(lp->pci_dev));
719 sprintf(info->bus_info, "VLB 0x%lx", dev->base_addr);
722 static u32 pcnet32_get_link(struct net_device *dev)
724 struct pcnet32_private *lp = netdev_priv(dev);
728 spin_lock_irqsave(&lp->lock, flags);
730 r = mii_link_ok(&lp->mii_if);
731 } else if (lp->chip_version >= PCNET32_79C970A) {
732 ulong ioaddr = dev->base_addr; /* card base I/O address */
733 r = (lp->a.read_bcr(ioaddr, 4) != 0xc0);
734 } else { /* can not detect link on really old chips */
737 spin_unlock_irqrestore(&lp->lock, flags);
742 static u32 pcnet32_get_msglevel(struct net_device *dev)
744 struct pcnet32_private *lp = netdev_priv(dev);
745 return lp->msg_enable;
748 static void pcnet32_set_msglevel(struct net_device *dev, u32 value)
750 struct pcnet32_private *lp = netdev_priv(dev);
751 lp->msg_enable = value;
754 static int pcnet32_nway_reset(struct net_device *dev)
756 struct pcnet32_private *lp = netdev_priv(dev);
761 spin_lock_irqsave(&lp->lock, flags);
762 r = mii_nway_restart(&lp->mii_if);
763 spin_unlock_irqrestore(&lp->lock, flags);
768 static void pcnet32_get_ringparam(struct net_device *dev,
769 struct ethtool_ringparam *ering)
771 struct pcnet32_private *lp = netdev_priv(dev);
773 ering->tx_max_pending = TX_MAX_RING_SIZE;
774 ering->tx_pending = lp->tx_ring_size;
775 ering->rx_max_pending = RX_MAX_RING_SIZE;
776 ering->rx_pending = lp->rx_ring_size;
779 static int pcnet32_set_ringparam(struct net_device *dev,
780 struct ethtool_ringparam *ering)
782 struct pcnet32_private *lp = netdev_priv(dev);
785 ulong ioaddr = dev->base_addr;
788 if (ering->rx_mini_pending || ering->rx_jumbo_pending)
791 if (netif_running(dev))
792 pcnet32_netif_stop(dev);
794 spin_lock_irqsave(&lp->lock, flags);
795 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */
797 size = min(ering->tx_pending, (unsigned int)TX_MAX_RING_SIZE);
799 /* set the minimum ring size to 4, to allow the loopback test to work
802 for (i = 2; i <= PCNET32_LOG_MAX_TX_BUFFERS; i++) {
803 if (size <= (1 << i))
806 if ((1 << i) != lp->tx_ring_size)
807 pcnet32_realloc_tx_ring(dev, lp, i);
809 size = min(ering->rx_pending, (unsigned int)RX_MAX_RING_SIZE);
810 for (i = 2; i <= PCNET32_LOG_MAX_RX_BUFFERS; i++) {
811 if (size <= (1 << i))
814 if ((1 << i) != lp->rx_ring_size)
815 pcnet32_realloc_rx_ring(dev, lp, i);
817 lp->napi.weight = lp->rx_ring_size / 2;
819 if (netif_running(dev)) {
820 pcnet32_netif_start(dev);
821 pcnet32_restart(dev, CSR0_NORMAL);
824 spin_unlock_irqrestore(&lp->lock, flags);
826 netif_info(lp, drv, dev, "Ring Param Settings: RX: %d, TX: %d\n",
827 lp->rx_ring_size, lp->tx_ring_size);
832 static void pcnet32_get_strings(struct net_device *dev, u32 stringset,
835 memcpy(data, pcnet32_gstrings_test, sizeof(pcnet32_gstrings_test));
838 static int pcnet32_get_sset_count(struct net_device *dev, int sset)
842 return PCNET32_TEST_LEN;
848 static void pcnet32_ethtool_test(struct net_device *dev,
849 struct ethtool_test *test, u64 * data)
851 struct pcnet32_private *lp = netdev_priv(dev);
854 if (test->flags == ETH_TEST_FL_OFFLINE) {
855 rc = pcnet32_loopback_test(dev, data);
857 netif_printk(lp, hw, KERN_DEBUG, dev,
858 "Loopback test failed\n");
859 test->flags |= ETH_TEST_FL_FAILED;
861 netif_printk(lp, hw, KERN_DEBUG, dev,
862 "Loopback test passed\n");
864 netif_printk(lp, hw, KERN_DEBUG, dev,
865 "No tests to run (specify 'Offline' on ethtool)\n");
866 } /* end pcnet32_ethtool_test */
868 static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1)
870 struct pcnet32_private *lp = netdev_priv(dev);
871 struct pcnet32_access *a = &lp->a; /* access to registers */
872 ulong ioaddr = dev->base_addr; /* card base I/O address */
873 struct sk_buff *skb; /* sk buff */
874 int x, i; /* counters */
875 int numbuffs = 4; /* number of TX/RX buffers and descs */
876 u16 status = 0x8300; /* TX ring status */
877 __le16 teststatus; /* test of ring status */
878 int rc; /* return code */
879 int size; /* size of packets */
880 unsigned char *packet; /* source packet data */
881 static const int data_len = 60; /* length of source packets */
885 rc = 1; /* default to fail */
887 if (netif_running(dev))
888 pcnet32_netif_stop(dev);
890 spin_lock_irqsave(&lp->lock, flags);
891 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */
893 numbuffs = min(numbuffs, (int)min(lp->rx_ring_size, lp->tx_ring_size));
895 /* Reset the PCNET32 */
897 lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */
899 /* switch pcnet32 to 32bit mode */
900 lp->a.write_bcr(ioaddr, 20, 2);
902 /* purge & init rings but don't actually restart */
903 pcnet32_restart(dev, 0x0000);
905 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */
907 /* Initialize Transmit buffers. */
908 size = data_len + 15;
909 for (x = 0; x < numbuffs; x++) {
910 skb = dev_alloc_skb(size);
912 netif_printk(lp, hw, KERN_DEBUG, dev,
913 "Cannot allocate skb at line: %d!\n",
918 skb_put(skb, size); /* create space for data */
919 lp->tx_skbuff[x] = skb;
920 lp->tx_ring[x].length = cpu_to_le16(-skb->len);
921 lp->tx_ring[x].misc = 0;
923 /* put DA and SA into the skb */
924 for (i = 0; i < 6; i++)
925 *packet++ = dev->dev_addr[i];
926 for (i = 0; i < 6; i++)
927 *packet++ = dev->dev_addr[i];
933 /* fill packet with data */
934 for (i = 0; i < data_len; i++)
938 pci_map_single(lp->pci_dev, skb->data, skb->len,
940 lp->tx_ring[x].base = cpu_to_le32(lp->tx_dma_addr[x]);
941 wmb(); /* Make sure owner changes after all others are visible */
942 lp->tx_ring[x].status = cpu_to_le16(status);
945 x = a->read_bcr(ioaddr, 32); /* set internal loopback in BCR32 */
946 a->write_bcr(ioaddr, 32, x | 0x0002);
948 /* set int loopback in CSR15 */
949 x = a->read_csr(ioaddr, CSR15) & 0xfffc;
950 lp->a.write_csr(ioaddr, CSR15, x | 0x0044);
952 teststatus = cpu_to_le16(0x8000);
953 lp->a.write_csr(ioaddr, CSR0, CSR0_START); /* Set STRT bit */
955 /* Check status of descriptors */
956 for (x = 0; x < numbuffs; x++) {
959 while ((lp->rx_ring[x].status & teststatus) && (ticks < 200)) {
960 spin_unlock_irqrestore(&lp->lock, flags);
962 spin_lock_irqsave(&lp->lock, flags);
967 netif_err(lp, hw, dev, "Desc %d failed to reset!\n", x);
972 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */
974 if (netif_msg_hw(lp) && netif_msg_pktdata(lp)) {
975 netdev_printk(KERN_DEBUG, dev, "RX loopback packets:\n");
977 for (x = 0; x < numbuffs; x++) {
978 netdev_printk(KERN_DEBUG, dev, "Packet %d: ", x);
979 skb = lp->rx_skbuff[x];
980 for (i = 0; i < size; i++)
981 pr_cont(" %02x", *(skb->data + i));
988 while (x < numbuffs && !rc) {
989 skb = lp->rx_skbuff[x];
990 packet = lp->tx_skbuff[x]->data;
991 for (i = 0; i < size; i++) {
992 if (*(skb->data + i) != packet[i]) {
993 netif_printk(lp, hw, KERN_DEBUG, dev,
994 "Error in compare! %2x - %02x %02x\n",
995 i, *(skb->data + i), packet[i]);
1005 pcnet32_purge_tx_ring(dev);
1007 x = a->read_csr(ioaddr, CSR15);
1008 a->write_csr(ioaddr, CSR15, (x & ~0x0044)); /* reset bits 6 and 2 */
1010 x = a->read_bcr(ioaddr, 32); /* reset internal loopback */
1011 a->write_bcr(ioaddr, 32, (x & ~0x0002));
1013 if (netif_running(dev)) {
1014 pcnet32_netif_start(dev);
1015 pcnet32_restart(dev, CSR0_NORMAL);
1017 pcnet32_purge_rx_ring(dev);
1018 lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */
1020 spin_unlock_irqrestore(&lp->lock, flags);
1023 } /* end pcnet32_loopback_test */
1025 static int pcnet32_set_phys_id(struct net_device *dev,
1026 enum ethtool_phys_id_state state)
1028 struct pcnet32_private *lp = netdev_priv(dev);
1029 struct pcnet32_access *a = &lp->a;
1030 ulong ioaddr = dev->base_addr;
1031 unsigned long flags;
1035 case ETHTOOL_ID_ACTIVE:
1036 /* Save the current value of the bcrs */
1037 spin_lock_irqsave(&lp->lock, flags);
1038 for (i = 4; i < 8; i++)
1039 lp->save_regs[i - 4] = a->read_bcr(ioaddr, i);
1040 spin_unlock_irqrestore(&lp->lock, flags);
1041 return 2; /* cycle on/off twice per second */
1044 case ETHTOOL_ID_OFF:
1046 spin_lock_irqsave(&lp->lock, flags);
1047 for (i = 4; i < 8; i++)
1048 a->write_bcr(ioaddr, i, a->read_bcr(ioaddr, i) ^ 0x4000);
1049 spin_unlock_irqrestore(&lp->lock, flags);
1052 case ETHTOOL_ID_INACTIVE:
1053 /* Restore the original value of the bcrs */
1054 spin_lock_irqsave(&lp->lock, flags);
1055 for (i = 4; i < 8; i++)
1056 a->write_bcr(ioaddr, i, lp->save_regs[i - 4]);
1057 spin_unlock_irqrestore(&lp->lock, flags);
1063 * lp->lock must be held.
1065 static int pcnet32_suspend(struct net_device *dev, unsigned long *flags,
1069 struct pcnet32_private *lp = netdev_priv(dev);
1070 struct pcnet32_access *a = &lp->a;
1071 ulong ioaddr = dev->base_addr;
1074 /* really old chips have to be stopped. */
1075 if (lp->chip_version < PCNET32_79C970A)
1078 /* set SUSPEND (SPND) - CSR5 bit 0 */
1079 csr5 = a->read_csr(ioaddr, CSR5);
1080 a->write_csr(ioaddr, CSR5, csr5 | CSR5_SUSPEND);
1082 /* poll waiting for bit to be set */
1084 while (!(a->read_csr(ioaddr, CSR5) & CSR5_SUSPEND)) {
1085 spin_unlock_irqrestore(&lp->lock, *flags);
1090 spin_lock_irqsave(&lp->lock, *flags);
1093 netif_printk(lp, hw, KERN_DEBUG, dev,
1094 "Error getting into suspend!\n");
1102 * process one receive descriptor entry
1105 static void pcnet32_rx_entry(struct net_device *dev,
1106 struct pcnet32_private *lp,
1107 struct pcnet32_rx_head *rxp,
1110 int status = (short)le16_to_cpu(rxp->status) >> 8;
1111 int rx_in_place = 0;
1112 struct sk_buff *skb;
1115 if (status != 0x03) { /* There was an error. */
1117 * There is a tricky error noted by John Murphy,
1118 * <murf@perftech.com> to Russ Nelson: Even with full-sized
1119 * buffers it's possible for a jabber packet to use two
1120 * buffers, with only the last correctly noting the error.
1122 if (status & 0x01) /* Only count a general error at the */
1123 dev->stats.rx_errors++; /* end of a packet. */
1125 dev->stats.rx_frame_errors++;
1127 dev->stats.rx_over_errors++;
1129 dev->stats.rx_crc_errors++;
1131 dev->stats.rx_fifo_errors++;
1135 pkt_len = (le32_to_cpu(rxp->msg_length) & 0xfff) - 4;
1137 /* Discard oversize frames. */
1138 if (unlikely(pkt_len > PKT_BUF_SIZE)) {
1139 netif_err(lp, drv, dev, "Impossible packet size %d!\n",
1141 dev->stats.rx_errors++;
1145 netif_err(lp, rx_err, dev, "Runt packet!\n");
1146 dev->stats.rx_errors++;
1150 if (pkt_len > rx_copybreak) {
1151 struct sk_buff *newskb;
1153 newskb = dev_alloc_skb(PKT_BUF_SKB);
1155 skb_reserve(newskb, NET_IP_ALIGN);
1156 skb = lp->rx_skbuff[entry];
1157 pci_unmap_single(lp->pci_dev,
1158 lp->rx_dma_addr[entry],
1160 PCI_DMA_FROMDEVICE);
1161 skb_put(skb, pkt_len);
1162 lp->rx_skbuff[entry] = newskb;
1163 lp->rx_dma_addr[entry] =
1164 pci_map_single(lp->pci_dev,
1167 PCI_DMA_FROMDEVICE);
1168 rxp->base = cpu_to_le32(lp->rx_dma_addr[entry]);
1173 skb = dev_alloc_skb(pkt_len + NET_IP_ALIGN);
1176 netif_err(lp, drv, dev, "Memory squeeze, dropping packet\n");
1177 dev->stats.rx_dropped++;
1181 skb_reserve(skb, NET_IP_ALIGN);
1182 skb_put(skb, pkt_len); /* Make room */
1183 pci_dma_sync_single_for_cpu(lp->pci_dev,
1184 lp->rx_dma_addr[entry],
1186 PCI_DMA_FROMDEVICE);
1187 skb_copy_to_linear_data(skb,
1188 (unsigned char *)(lp->rx_skbuff[entry]->data),
1190 pci_dma_sync_single_for_device(lp->pci_dev,
1191 lp->rx_dma_addr[entry],
1193 PCI_DMA_FROMDEVICE);
1195 dev->stats.rx_bytes += skb->len;
1196 skb->protocol = eth_type_trans(skb, dev);
1197 netif_receive_skb(skb);
1198 dev->stats.rx_packets++;
1201 static int pcnet32_rx(struct net_device *dev, int budget)
1203 struct pcnet32_private *lp = netdev_priv(dev);
1204 int entry = lp->cur_rx & lp->rx_mod_mask;
1205 struct pcnet32_rx_head *rxp = &lp->rx_ring[entry];
1208 /* If we own the next entry, it's a new packet. Send it up. */
1209 while (npackets < budget && (short)le16_to_cpu(rxp->status) >= 0) {
1210 pcnet32_rx_entry(dev, lp, rxp, entry);
1213 * The docs say that the buffer length isn't touched, but Andrew
1214 * Boyd of QNX reports that some revs of the 79C965 clear it.
1216 rxp->buf_length = cpu_to_le16(NEG_BUF_SIZE);
1217 wmb(); /* Make sure owner changes after others are visible */
1218 rxp->status = cpu_to_le16(0x8000);
1219 entry = (++lp->cur_rx) & lp->rx_mod_mask;
1220 rxp = &lp->rx_ring[entry];
1226 static int pcnet32_tx(struct net_device *dev)
1228 struct pcnet32_private *lp = netdev_priv(dev);
1229 unsigned int dirty_tx = lp->dirty_tx;
1231 int must_restart = 0;
1233 while (dirty_tx != lp->cur_tx) {
1234 int entry = dirty_tx & lp->tx_mod_mask;
1235 int status = (short)le16_to_cpu(lp->tx_ring[entry].status);
1238 break; /* It still hasn't been Txed */
1240 lp->tx_ring[entry].base = 0;
1242 if (status & 0x4000) {
1243 /* There was a major error, log it. */
1244 int err_status = le32_to_cpu(lp->tx_ring[entry].misc);
1245 dev->stats.tx_errors++;
1246 netif_err(lp, tx_err, dev,
1247 "Tx error status=%04x err_status=%08x\n",
1248 status, err_status);
1249 if (err_status & 0x04000000)
1250 dev->stats.tx_aborted_errors++;
1251 if (err_status & 0x08000000)
1252 dev->stats.tx_carrier_errors++;
1253 if (err_status & 0x10000000)
1254 dev->stats.tx_window_errors++;
1256 if (err_status & 0x40000000) {
1257 dev->stats.tx_fifo_errors++;
1258 /* Ackk! On FIFO errors the Tx unit is turned off! */
1259 /* Remove this verbosity later! */
1260 netif_err(lp, tx_err, dev, "Tx FIFO error!\n");
1264 if (err_status & 0x40000000) {
1265 dev->stats.tx_fifo_errors++;
1266 if (!lp->dxsuflo) { /* If controller doesn't recover ... */
1267 /* Ackk! On FIFO errors the Tx unit is turned off! */
1268 /* Remove this verbosity later! */
1269 netif_err(lp, tx_err, dev, "Tx FIFO error!\n");
1275 if (status & 0x1800)
1276 dev->stats.collisions++;
1277 dev->stats.tx_packets++;
1280 /* We must free the original skb */
1281 if (lp->tx_skbuff[entry]) {
1282 pci_unmap_single(lp->pci_dev,
1283 lp->tx_dma_addr[entry],
1284 lp->tx_skbuff[entry]->
1285 len, PCI_DMA_TODEVICE);
1286 dev_kfree_skb_any(lp->tx_skbuff[entry]);
1287 lp->tx_skbuff[entry] = NULL;
1288 lp->tx_dma_addr[entry] = 0;
1293 delta = (lp->cur_tx - dirty_tx) & (lp->tx_mod_mask + lp->tx_ring_size);
1294 if (delta > lp->tx_ring_size) {
1295 netif_err(lp, drv, dev, "out-of-sync dirty pointer, %d vs. %d, full=%d\n",
1296 dirty_tx, lp->cur_tx, lp->tx_full);
1297 dirty_tx += lp->tx_ring_size;
1298 delta -= lp->tx_ring_size;
1302 netif_queue_stopped(dev) &&
1303 delta < lp->tx_ring_size - 2) {
1304 /* The ring is no longer full, clear tbusy. */
1306 netif_wake_queue(dev);
1308 lp->dirty_tx = dirty_tx;
1310 return must_restart;
1313 static int pcnet32_poll(struct napi_struct *napi, int budget)
1315 struct pcnet32_private *lp = container_of(napi, struct pcnet32_private, napi);
1316 struct net_device *dev = lp->dev;
1317 unsigned long ioaddr = dev->base_addr;
1318 unsigned long flags;
1322 work_done = pcnet32_rx(dev, budget);
1324 spin_lock_irqsave(&lp->lock, flags);
1325 if (pcnet32_tx(dev)) {
1326 /* reset the chip to clear the error condition, then restart */
1327 lp->a.reset(ioaddr);
1328 lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */
1329 pcnet32_restart(dev, CSR0_START);
1330 netif_wake_queue(dev);
1332 spin_unlock_irqrestore(&lp->lock, flags);
1334 if (work_done < budget) {
1335 spin_lock_irqsave(&lp->lock, flags);
1337 __napi_complete(napi);
1339 /* clear interrupt masks */
1340 val = lp->a.read_csr(ioaddr, CSR3);
1342 lp->a.write_csr(ioaddr, CSR3, val);
1344 /* Set interrupt enable. */
1345 lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN);
1347 spin_unlock_irqrestore(&lp->lock, flags);
1352 #define PCNET32_REGS_PER_PHY 32
1353 #define PCNET32_MAX_PHYS 32
1354 static int pcnet32_get_regs_len(struct net_device *dev)
1356 struct pcnet32_private *lp = netdev_priv(dev);
1357 int j = lp->phycount * PCNET32_REGS_PER_PHY;
1359 return (PCNET32_NUM_REGS + j) * sizeof(u16);
1362 static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs,
1367 struct pcnet32_private *lp = netdev_priv(dev);
1368 struct pcnet32_access *a = &lp->a;
1369 ulong ioaddr = dev->base_addr;
1370 unsigned long flags;
1372 spin_lock_irqsave(&lp->lock, flags);
1374 csr0 = a->read_csr(ioaddr, CSR0);
1375 if (!(csr0 & CSR0_STOP)) /* If not stopped */
1376 pcnet32_suspend(dev, &flags, 1);
1378 /* read address PROM */
1379 for (i = 0; i < 16; i += 2)
1380 *buff++ = inw(ioaddr + i);
1382 /* read control and status registers */
1383 for (i = 0; i < 90; i++)
1384 *buff++ = a->read_csr(ioaddr, i);
1386 *buff++ = a->read_csr(ioaddr, 112);
1387 *buff++ = a->read_csr(ioaddr, 114);
1389 /* read bus configuration registers */
1390 for (i = 0; i < 30; i++)
1391 *buff++ = a->read_bcr(ioaddr, i);
1393 *buff++ = 0; /* skip bcr30 so as not to hang 79C976 */
1395 for (i = 31; i < 36; i++)
1396 *buff++ = a->read_bcr(ioaddr, i);
1398 /* read mii phy registers */
1401 for (j = 0; j < PCNET32_MAX_PHYS; j++) {
1402 if (lp->phymask & (1 << j)) {
1403 for (i = 0; i < PCNET32_REGS_PER_PHY; i++) {
1404 lp->a.write_bcr(ioaddr, 33,
1406 *buff++ = lp->a.read_bcr(ioaddr, 34);
1412 if (!(csr0 & CSR0_STOP)) { /* If not stopped */
1415 /* clear SUSPEND (SPND) - CSR5 bit 0 */
1416 csr5 = a->read_csr(ioaddr, CSR5);
1417 a->write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND));
1420 spin_unlock_irqrestore(&lp->lock, flags);
1423 static const struct ethtool_ops pcnet32_ethtool_ops = {
1424 .get_settings = pcnet32_get_settings,
1425 .set_settings = pcnet32_set_settings,
1426 .get_drvinfo = pcnet32_get_drvinfo,
1427 .get_msglevel = pcnet32_get_msglevel,
1428 .set_msglevel = pcnet32_set_msglevel,
1429 .nway_reset = pcnet32_nway_reset,
1430 .get_link = pcnet32_get_link,
1431 .get_ringparam = pcnet32_get_ringparam,
1432 .set_ringparam = pcnet32_set_ringparam,
1433 .get_strings = pcnet32_get_strings,
1434 .self_test = pcnet32_ethtool_test,
1435 .set_phys_id = pcnet32_set_phys_id,
1436 .get_regs_len = pcnet32_get_regs_len,
1437 .get_regs = pcnet32_get_regs,
1438 .get_sset_count = pcnet32_get_sset_count,
1441 /* only probes for non-PCI devices, the rest are handled by
1442 * pci_register_driver via pcnet32_probe_pci */
1444 static void __devinit pcnet32_probe_vlbus(unsigned int *pcnet32_portlist)
1446 unsigned int *port, ioaddr;
1448 /* search for PCnet32 VLB cards at known addresses */
1449 for (port = pcnet32_portlist; (ioaddr = *port); port++) {
1451 (ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_vlbus")) {
1452 /* check if there is really a pcnet chip on that ioaddr */
1453 if ((inb(ioaddr + 14) == 0x57) &&
1454 (inb(ioaddr + 15) == 0x57)) {
1455 pcnet32_probe1(ioaddr, 0, NULL);
1457 release_region(ioaddr, PCNET32_TOTAL_SIZE);
1463 static int __devinit
1464 pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent)
1466 unsigned long ioaddr;
1469 err = pci_enable_device(pdev);
1471 if (pcnet32_debug & NETIF_MSG_PROBE)
1472 pr_err("failed to enable device -- err=%d\n", err);
1475 pci_set_master(pdev);
1477 ioaddr = pci_resource_start(pdev, 0);
1479 if (pcnet32_debug & NETIF_MSG_PROBE)
1480 pr_err("card has no PCI IO resources, aborting\n");
1484 if (!pci_dma_supported(pdev, PCNET32_DMA_MASK)) {
1485 if (pcnet32_debug & NETIF_MSG_PROBE)
1486 pr_err("architecture does not support 32bit PCI busmaster DMA\n");
1489 if (!request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci")) {
1490 if (pcnet32_debug & NETIF_MSG_PROBE)
1491 pr_err("io address range already allocated\n");
1495 err = pcnet32_probe1(ioaddr, 1, pdev);
1497 pci_disable_device(pdev);
1502 static const struct net_device_ops pcnet32_netdev_ops = {
1503 .ndo_open = pcnet32_open,
1504 .ndo_stop = pcnet32_close,
1505 .ndo_start_xmit = pcnet32_start_xmit,
1506 .ndo_tx_timeout = pcnet32_tx_timeout,
1507 .ndo_get_stats = pcnet32_get_stats,
1508 .ndo_set_multicast_list = pcnet32_set_multicast_list,
1509 .ndo_do_ioctl = pcnet32_ioctl,
1510 .ndo_change_mtu = eth_change_mtu,
1511 .ndo_set_mac_address = eth_mac_addr,
1512 .ndo_validate_addr = eth_validate_addr,
1513 #ifdef CONFIG_NET_POLL_CONTROLLER
1514 .ndo_poll_controller = pcnet32_poll_controller,
1519 * Called from both pcnet32_probe_vlbus and pcnet_probe_pci.
1520 * pdev will be NULL when called from pcnet32_probe_vlbus.
1522 static int __devinit
1523 pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
1525 struct pcnet32_private *lp;
1527 int fdx, mii, fset, dxsuflo;
1530 struct net_device *dev;
1531 struct pcnet32_access *a = NULL;
1535 /* reset the chip */
1536 pcnet32_wio_reset(ioaddr);
1538 /* NOTE: 16-bit check is first, otherwise some older PCnet chips fail */
1539 if (pcnet32_wio_read_csr(ioaddr, 0) == 4 && pcnet32_wio_check(ioaddr)) {
1542 pcnet32_dwio_reset(ioaddr);
1543 if (pcnet32_dwio_read_csr(ioaddr, 0) == 4 &&
1544 pcnet32_dwio_check(ioaddr)) {
1547 if (pcnet32_debug & NETIF_MSG_PROBE)
1548 pr_err("No access methods\n");
1549 goto err_release_region;
1554 a->read_csr(ioaddr, 88) | (a->read_csr(ioaddr, 89) << 16);
1555 if ((pcnet32_debug & NETIF_MSG_PROBE) && (pcnet32_debug & NETIF_MSG_HW))
1556 pr_info(" PCnet chip version is %#x\n", chip_version);
1557 if ((chip_version & 0xfff) != 0x003) {
1558 if (pcnet32_debug & NETIF_MSG_PROBE)
1559 pr_info("Unsupported chip version\n");
1560 goto err_release_region;
1563 /* initialize variables */
1564 fdx = mii = fset = dxsuflo = 0;
1565 chip_version = (chip_version >> 12) & 0xffff;
1567 switch (chip_version) {
1569 chipname = "PCnet/PCI 79C970"; /* PCI */
1573 chipname = "PCnet/PCI 79C970"; /* 970 gives the wrong chip id back */
1575 chipname = "PCnet/32 79C965"; /* 486/VL bus */
1578 chipname = "PCnet/PCI II 79C970A"; /* PCI */
1582 chipname = "PCnet/FAST 79C971"; /* PCI */
1588 chipname = "PCnet/FAST+ 79C972"; /* PCI */
1594 chipname = "PCnet/FAST III 79C973"; /* PCI */
1599 chipname = "PCnet/Home 79C978"; /* PCI */
1602 * This is based on specs published at www.amd.com. This section
1603 * assumes that a card with a 79C978 wants to go into standard
1604 * ethernet mode. The 79C978 can also go into 1Mb HomePNA mode,
1605 * and the module option homepna=1 can select this instead.
1607 media = a->read_bcr(ioaddr, 49);
1608 media &= ~3; /* default to 10Mb ethernet */
1609 if (cards_found < MAX_UNITS && homepna[cards_found])
1610 media |= 1; /* switch to home wiring mode */
1611 if (pcnet32_debug & NETIF_MSG_PROBE)
1612 printk(KERN_DEBUG PFX "media set to %sMbit mode\n",
1613 (media & 1) ? "1" : "10");
1614 a->write_bcr(ioaddr, 49, media);
1617 chipname = "PCnet/FAST III 79C975"; /* PCI */
1622 chipname = "PCnet/PRO 79C976";
1627 if (pcnet32_debug & NETIF_MSG_PROBE)
1628 pr_info("PCnet version %#x, no PCnet32 chip\n",
1630 goto err_release_region;
1634 * On selected chips turn on the BCR18:NOUFLO bit. This stops transmit
1635 * starting until the packet is loaded. Strike one for reliability, lose
1636 * one for latency - although on PCI this isn't a big loss. Older chips
1637 * have FIFO's smaller than a packet, so you can't do this.
1638 * Turn on BCR18:BurstRdEn and BCR18:BurstWrEn.
1642 a->write_bcr(ioaddr, 18, (a->read_bcr(ioaddr, 18) | 0x0860));
1643 a->write_csr(ioaddr, 80,
1644 (a->read_csr(ioaddr, 80) & 0x0C00) | 0x0c00);
1648 dev = alloc_etherdev(sizeof(*lp));
1650 if (pcnet32_debug & NETIF_MSG_PROBE)
1651 pr_err("Memory allocation failed\n");
1653 goto err_release_region;
1657 SET_NETDEV_DEV(dev, &pdev->dev);
1659 if (pcnet32_debug & NETIF_MSG_PROBE)
1660 pr_info("%s at %#3lx,", chipname, ioaddr);
1662 /* In most chips, after a chip reset, the ethernet address is read from the
1663 * station address PROM at the base address and programmed into the
1664 * "Physical Address Registers" CSR12-14.
1665 * As a precautionary measure, we read the PROM values and complain if
1666 * they disagree with the CSRs. If they miscompare, and the PROM addr
1667 * is valid, then the PROM addr is used.
1669 for (i = 0; i < 3; i++) {
1671 val = a->read_csr(ioaddr, i + 12) & 0x0ffff;
1672 /* There may be endianness issues here. */
1673 dev->dev_addr[2 * i] = val & 0x0ff;
1674 dev->dev_addr[2 * i + 1] = (val >> 8) & 0x0ff;
1677 /* read PROM address and compare with CSR address */
1678 for (i = 0; i < 6; i++)
1679 promaddr[i] = inb(ioaddr + i);
1681 if (memcmp(promaddr, dev->dev_addr, 6) ||
1682 !is_valid_ether_addr(dev->dev_addr)) {
1683 if (is_valid_ether_addr(promaddr)) {
1684 if (pcnet32_debug & NETIF_MSG_PROBE) {
1685 pr_cont(" warning: CSR address invalid,\n");
1686 pr_info(" using instead PROM address of");
1688 memcpy(dev->dev_addr, promaddr, 6);
1691 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
1693 /* if the ethernet address is not valid, force to 00:00:00:00:00:00 */
1694 if (!is_valid_ether_addr(dev->perm_addr))
1695 memset(dev->dev_addr, 0, ETH_ALEN);
1697 if (pcnet32_debug & NETIF_MSG_PROBE) {
1698 pr_cont(" %pM", dev->dev_addr);
1700 /* Version 0x2623 and 0x2624 */
1701 if (((chip_version + 1) & 0xfffe) == 0x2624) {
1702 i = a->read_csr(ioaddr, 80) & 0x0C00; /* Check tx_start_pt */
1703 pr_info(" tx_start_pt(0x%04x):", i);
1706 pr_cont(" 20 bytes,");
1709 pr_cont(" 64 bytes,");
1712 pr_cont(" 128 bytes,");
1715 pr_cont("~220 bytes,");
1718 i = a->read_bcr(ioaddr, 18); /* Check Burst/Bus control */
1719 pr_cont(" BCR18(%x):", i & 0xffff);
1721 pr_cont("BurstWrEn ");
1723 pr_cont("BurstRdEn ");
1725 pr_cont("DWordIO ");
1727 pr_cont("NoUFlow ");
1728 i = a->read_bcr(ioaddr, 25);
1729 pr_info(" SRAMSIZE=0x%04x,", i << 8);
1730 i = a->read_bcr(ioaddr, 26);
1731 pr_cont(" SRAM_BND=0x%04x,", i << 8);
1732 i = a->read_bcr(ioaddr, 27);
1734 pr_cont("LowLatRx");
1738 dev->base_addr = ioaddr;
1739 lp = netdev_priv(dev);
1740 /* pci_alloc_consistent returns page-aligned memory, so we do not have to check the alignment */
1741 lp->init_block = pci_alloc_consistent(pdev, sizeof(*lp->init_block),
1742 &lp->init_dma_addr);
1743 if (!lp->init_block) {
1744 if (pcnet32_debug & NETIF_MSG_PROBE)
1745 pr_err("Consistent memory allocation failed\n");
1747 goto err_free_netdev;
1753 spin_lock_init(&lp->lock);
1755 lp->name = chipname;
1756 lp->shared_irq = shared;
1757 lp->tx_ring_size = TX_RING_SIZE; /* default tx ring size */
1758 lp->rx_ring_size = RX_RING_SIZE; /* default rx ring size */
1759 lp->tx_mod_mask = lp->tx_ring_size - 1;
1760 lp->rx_mod_mask = lp->rx_ring_size - 1;
1761 lp->tx_len_bits = (PCNET32_LOG_TX_BUFFERS << 12);
1762 lp->rx_len_bits = (PCNET32_LOG_RX_BUFFERS << 4);
1763 lp->mii_if.full_duplex = fdx;
1764 lp->mii_if.phy_id_mask = 0x1f;
1765 lp->mii_if.reg_num_mask = 0x1f;
1766 lp->dxsuflo = dxsuflo;
1768 lp->chip_version = chip_version;
1769 lp->msg_enable = pcnet32_debug;
1770 if ((cards_found >= MAX_UNITS) ||
1771 (options[cards_found] >= sizeof(options_mapping)))
1772 lp->options = PCNET32_PORT_ASEL;
1774 lp->options = options_mapping[options[cards_found]];
1775 lp->mii_if.dev = dev;
1776 lp->mii_if.mdio_read = mdio_read;
1777 lp->mii_if.mdio_write = mdio_write;
1779 /* napi.weight is used in both the napi and non-napi cases */
1780 lp->napi.weight = lp->rx_ring_size / 2;
1782 netif_napi_add(dev, &lp->napi, pcnet32_poll, lp->rx_ring_size / 2);
1784 if (fdx && !(lp->options & PCNET32_PORT_ASEL) &&
1785 ((cards_found >= MAX_UNITS) || full_duplex[cards_found]))
1786 lp->options |= PCNET32_PORT_FD;
1790 /* prior to register_netdev, dev->name is not yet correct */
1791 if (pcnet32_alloc_ring(dev, pci_name(lp->pci_dev))) {
1795 /* detect special T1/E1 WAN card by checking for MAC address */
1796 if (dev->dev_addr[0] == 0x00 && dev->dev_addr[1] == 0xe0 &&
1797 dev->dev_addr[2] == 0x75)
1798 lp->options = PCNET32_PORT_FD | PCNET32_PORT_GPSI;
1800 lp->init_block->mode = cpu_to_le16(0x0003); /* Disable Rx and Tx. */
1801 lp->init_block->tlen_rlen =
1802 cpu_to_le16(lp->tx_len_bits | lp->rx_len_bits);
1803 for (i = 0; i < 6; i++)
1804 lp->init_block->phys_addr[i] = dev->dev_addr[i];
1805 lp->init_block->filter[0] = 0x00000000;
1806 lp->init_block->filter[1] = 0x00000000;
1807 lp->init_block->rx_ring = cpu_to_le32(lp->rx_ring_dma_addr);
1808 lp->init_block->tx_ring = cpu_to_le32(lp->tx_ring_dma_addr);
1810 /* switch pcnet32 to 32bit mode */
1811 a->write_bcr(ioaddr, 20, 2);
1813 a->write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff));
1814 a->write_csr(ioaddr, 2, (lp->init_dma_addr >> 16));
1816 if (pdev) { /* use the IRQ provided by PCI */
1817 dev->irq = pdev->irq;
1818 if (pcnet32_debug & NETIF_MSG_PROBE)
1819 pr_cont(" assigned IRQ %d\n", dev->irq);
1821 unsigned long irq_mask = probe_irq_on();
1824 * To auto-IRQ we enable the initialization-done and DMA error
1825 * interrupts. For ISA boards we get a DMA error, but VLB and PCI
1828 /* Trigger an initialization just for the interrupt. */
1829 a->write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_INIT);
1832 dev->irq = probe_irq_off(irq_mask);
1834 if (pcnet32_debug & NETIF_MSG_PROBE)
1835 pr_cont(", failed to detect IRQ line\n");
1839 if (pcnet32_debug & NETIF_MSG_PROBE)
1840 pr_cont(", probed IRQ %d\n", dev->irq);
1843 /* Set the mii phy_id so that we can query the link state */
1845 /* lp->phycount and lp->phymask are set to 0 by memset above */
1847 lp->mii_if.phy_id = ((lp->a.read_bcr(ioaddr, 33)) >> 5) & 0x1f;
1849 for (i = 0; i < PCNET32_MAX_PHYS; i++) {
1850 unsigned short id1, id2;
1852 id1 = mdio_read(dev, i, MII_PHYSID1);
1855 id2 = mdio_read(dev, i, MII_PHYSID2);
1858 if (i == 31 && ((chip_version + 1) & 0xfffe) == 0x2624)
1859 continue; /* 79C971 & 79C972 have phantom phy at id 31 */
1861 lp->phymask |= (1 << i);
1862 lp->mii_if.phy_id = i;
1863 if (pcnet32_debug & NETIF_MSG_PROBE)
1864 pr_info("Found PHY %04x:%04x at address %d\n",
1867 lp->a.write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5);
1868 if (lp->phycount > 1)
1869 lp->options |= PCNET32_PORT_MII;
1872 init_timer(&lp->watchdog_timer);
1873 lp->watchdog_timer.data = (unsigned long)dev;
1874 lp->watchdog_timer.function = (void *)&pcnet32_watchdog;
1876 /* The PCNET32-specific entries in the device structure. */
1877 dev->netdev_ops = &pcnet32_netdev_ops;
1878 dev->ethtool_ops = &pcnet32_ethtool_ops;
1879 dev->watchdog_timeo = (5 * HZ);
1881 /* Fill in the generic fields of the device structure. */
1882 if (register_netdev(dev))
1886 pci_set_drvdata(pdev, dev);
1888 lp->next = pcnet32_dev;
1892 if (pcnet32_debug & NETIF_MSG_PROBE)
1893 pr_info("%s: registered as %s\n", dev->name, lp->name);
1896 /* enable LED writes */
1897 a->write_bcr(ioaddr, 2, a->read_bcr(ioaddr, 2) | 0x1000);
1902 pcnet32_free_ring(dev);
1903 pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block),
1904 lp->init_block, lp->init_dma_addr);
1908 release_region(ioaddr, PCNET32_TOTAL_SIZE);
1912 /* if any allocation fails, caller must also call pcnet32_free_ring */
1913 static int pcnet32_alloc_ring(struct net_device *dev, const char *name)
1915 struct pcnet32_private *lp = netdev_priv(dev);
1917 lp->tx_ring = pci_alloc_consistent(lp->pci_dev,
1918 sizeof(struct pcnet32_tx_head) *
1920 &lp->tx_ring_dma_addr);
1921 if (lp->tx_ring == NULL) {
1922 netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
1926 lp->rx_ring = pci_alloc_consistent(lp->pci_dev,
1927 sizeof(struct pcnet32_rx_head) *
1929 &lp->rx_ring_dma_addr);
1930 if (lp->rx_ring == NULL) {
1931 netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
1935 lp->tx_dma_addr = kcalloc(lp->tx_ring_size, sizeof(dma_addr_t),
1937 if (!lp->tx_dma_addr) {
1938 netif_err(lp, drv, dev, "Memory allocation failed\n");
1942 lp->rx_dma_addr = kcalloc(lp->rx_ring_size, sizeof(dma_addr_t),
1944 if (!lp->rx_dma_addr) {
1945 netif_err(lp, drv, dev, "Memory allocation failed\n");
1949 lp->tx_skbuff = kcalloc(lp->tx_ring_size, sizeof(struct sk_buff *),
1951 if (!lp->tx_skbuff) {
1952 netif_err(lp, drv, dev, "Memory allocation failed\n");
1956 lp->rx_skbuff = kcalloc(lp->rx_ring_size, sizeof(struct sk_buff *),
1958 if (!lp->rx_skbuff) {
1959 netif_err(lp, drv, dev, "Memory allocation failed\n");
1966 static void pcnet32_free_ring(struct net_device *dev)
1968 struct pcnet32_private *lp = netdev_priv(dev);
1970 kfree(lp->tx_skbuff);
1971 lp->tx_skbuff = NULL;
1973 kfree(lp->rx_skbuff);
1974 lp->rx_skbuff = NULL;
1976 kfree(lp->tx_dma_addr);
1977 lp->tx_dma_addr = NULL;
1979 kfree(lp->rx_dma_addr);
1980 lp->rx_dma_addr = NULL;
1983 pci_free_consistent(lp->pci_dev,
1984 sizeof(struct pcnet32_tx_head) *
1985 lp->tx_ring_size, lp->tx_ring,
1986 lp->tx_ring_dma_addr);
1991 pci_free_consistent(lp->pci_dev,
1992 sizeof(struct pcnet32_rx_head) *
1993 lp->rx_ring_size, lp->rx_ring,
1994 lp->rx_ring_dma_addr);
1999 static int pcnet32_open(struct net_device *dev)
2001 struct pcnet32_private *lp = netdev_priv(dev);
2002 struct pci_dev *pdev = lp->pci_dev;
2003 unsigned long ioaddr = dev->base_addr;
2007 unsigned long flags;
2009 if (request_irq(dev->irq, pcnet32_interrupt,
2010 lp->shared_irq ? IRQF_SHARED : 0, dev->name,
2015 spin_lock_irqsave(&lp->lock, flags);
2016 /* Check for a valid station address */
2017 if (!is_valid_ether_addr(dev->dev_addr)) {
2022 /* Reset the PCNET32 */
2023 lp->a.reset(ioaddr);
2025 /* switch pcnet32 to 32bit mode */
2026 lp->a.write_bcr(ioaddr, 20, 2);
2028 netif_printk(lp, ifup, KERN_DEBUG, dev,
2029 "%s() irq %d tx/rx rings %#x/%#x init %#x\n",
2030 __func__, dev->irq, (u32) (lp->tx_ring_dma_addr),
2031 (u32) (lp->rx_ring_dma_addr),
2032 (u32) (lp->init_dma_addr));
2034 /* set/reset autoselect bit */
2035 val = lp->a.read_bcr(ioaddr, 2) & ~2;
2036 if (lp->options & PCNET32_PORT_ASEL)
2038 lp->a.write_bcr(ioaddr, 2, val);
2040 /* handle full duplex setting */
2041 if (lp->mii_if.full_duplex) {
2042 val = lp->a.read_bcr(ioaddr, 9) & ~3;
2043 if (lp->options & PCNET32_PORT_FD) {
2045 if (lp->options == (PCNET32_PORT_FD | PCNET32_PORT_AUI))
2047 } else if (lp->options & PCNET32_PORT_ASEL) {
2048 /* workaround of xSeries250, turn on for 79C975 only */
2049 if (lp->chip_version == 0x2627)
2052 lp->a.write_bcr(ioaddr, 9, val);
2055 /* set/reset GPSI bit in test register */
2056 val = lp->a.read_csr(ioaddr, 124) & ~0x10;
2057 if ((lp->options & PCNET32_PORT_PORTSEL) == PCNET32_PORT_GPSI)
2059 lp->a.write_csr(ioaddr, 124, val);
2061 /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */
2062 if (pdev && pdev->subsystem_vendor == PCI_VENDOR_ID_AT &&
2063 (pdev->subsystem_device == PCI_SUBDEVICE_ID_AT_2700FX ||
2064 pdev->subsystem_device == PCI_SUBDEVICE_ID_AT_2701FX)) {
2065 if (lp->options & PCNET32_PORT_ASEL) {
2066 lp->options = PCNET32_PORT_FD | PCNET32_PORT_100;
2067 netif_printk(lp, link, KERN_DEBUG, dev,
2068 "Setting 100Mb-Full Duplex\n");
2071 if (lp->phycount < 2) {
2073 * 24 Jun 2004 according AMD, in order to change the PHY,
2074 * DANAS (or DISPM for 79C976) must be set; then select the speed,
2075 * duplex, and/or enable auto negotiation, and clear DANAS
2077 if (lp->mii && !(lp->options & PCNET32_PORT_ASEL)) {
2078 lp->a.write_bcr(ioaddr, 32,
2079 lp->a.read_bcr(ioaddr, 32) | 0x0080);
2080 /* disable Auto Negotiation, set 10Mpbs, HD */
2081 val = lp->a.read_bcr(ioaddr, 32) & ~0xb8;
2082 if (lp->options & PCNET32_PORT_FD)
2084 if (lp->options & PCNET32_PORT_100)
2086 lp->a.write_bcr(ioaddr, 32, val);
2088 if (lp->options & PCNET32_PORT_ASEL) {
2089 lp->a.write_bcr(ioaddr, 32,
2090 lp->a.read_bcr(ioaddr,
2092 /* enable auto negotiate, setup, disable fd */
2093 val = lp->a.read_bcr(ioaddr, 32) & ~0x98;
2095 lp->a.write_bcr(ioaddr, 32, val);
2102 struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
2105 * There is really no good other way to handle multiple PHYs
2106 * other than turning off all automatics
2108 val = lp->a.read_bcr(ioaddr, 2);
2109 lp->a.write_bcr(ioaddr, 2, val & ~2);
2110 val = lp->a.read_bcr(ioaddr, 32);
2111 lp->a.write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */
2113 if (!(lp->options & PCNET32_PORT_ASEL)) {
2115 ecmd.port = PORT_MII;
2116 ecmd.transceiver = XCVR_INTERNAL;
2117 ecmd.autoneg = AUTONEG_DISABLE;
2118 ethtool_cmd_speed_set(&ecmd,
2119 (lp->options & PCNET32_PORT_100) ?
2120 SPEED_100 : SPEED_10);
2121 bcr9 = lp->a.read_bcr(ioaddr, 9);
2123 if (lp->options & PCNET32_PORT_FD) {
2124 ecmd.duplex = DUPLEX_FULL;
2127 ecmd.duplex = DUPLEX_HALF;
2130 lp->a.write_bcr(ioaddr, 9, bcr9);
2133 for (i = 0; i < PCNET32_MAX_PHYS; i++) {
2134 if (lp->phymask & (1 << i)) {
2135 /* isolate all but the first PHY */
2136 bmcr = mdio_read(dev, i, MII_BMCR);
2137 if (first_phy == -1) {
2139 mdio_write(dev, i, MII_BMCR,
2140 bmcr & ~BMCR_ISOLATE);
2142 mdio_write(dev, i, MII_BMCR,
2143 bmcr | BMCR_ISOLATE);
2145 /* use mii_ethtool_sset to setup PHY */
2146 lp->mii_if.phy_id = i;
2147 ecmd.phy_address = i;
2148 if (lp->options & PCNET32_PORT_ASEL) {
2149 mii_ethtool_gset(&lp->mii_if, &ecmd);
2150 ecmd.autoneg = AUTONEG_ENABLE;
2152 mii_ethtool_sset(&lp->mii_if, &ecmd);
2155 lp->mii_if.phy_id = first_phy;
2156 netif_info(lp, link, dev, "Using PHY number %d\n", first_phy);
2160 if (lp->dxsuflo) { /* Disable transmit stop on underflow */
2161 val = lp->a.read_csr(ioaddr, CSR3);
2163 lp->a.write_csr(ioaddr, CSR3, val);
2167 lp->init_block->mode =
2168 cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7);
2169 pcnet32_load_multicast(dev);
2171 if (pcnet32_init_ring(dev)) {
2176 napi_enable(&lp->napi);
2178 /* Re-initialize the PCNET32, and start it when done. */
2179 lp->a.write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff));
2180 lp->a.write_csr(ioaddr, 2, (lp->init_dma_addr >> 16));
2182 lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */
2183 lp->a.write_csr(ioaddr, CSR0, CSR0_INIT);
2185 netif_start_queue(dev);
2187 if (lp->chip_version >= PCNET32_79C970A) {
2188 /* Print the link status and start the watchdog */
2189 pcnet32_check_media(dev, 1);
2190 mod_timer(&lp->watchdog_timer, PCNET32_WATCHDOG_TIMEOUT);
2195 if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON)
2198 * We used to clear the InitDone bit, 0x0100, here but Mark Stockton
2199 * reports that doing so triggers a bug in the '974.
2201 lp->a.write_csr(ioaddr, CSR0, CSR0_NORMAL);
2203 netif_printk(lp, ifup, KERN_DEBUG, dev,
2204 "pcnet32 open after %d ticks, init block %#x csr0 %4.4x\n",
2206 (u32) (lp->init_dma_addr),
2207 lp->a.read_csr(ioaddr, CSR0));
2209 spin_unlock_irqrestore(&lp->lock, flags);
2211 return 0; /* Always succeed */
2214 /* free any allocated skbuffs */
2215 pcnet32_purge_rx_ring(dev);
2218 * Switch back to 16bit mode to avoid problems with dumb
2219 * DOS packet driver after a warm reboot
2221 lp->a.write_bcr(ioaddr, 20, 4);
2224 spin_unlock_irqrestore(&lp->lock, flags);
2225 free_irq(dev->irq, dev);
2230 * The LANCE has been halted for one reason or another (busmaster memory
2231 * arbitration error, Tx FIFO underflow, driver stopped it to reconfigure,
2232 * etc.). Modern LANCE variants always reload their ring-buffer
2233 * configuration when restarted, so we must reinitialize our ring
2234 * context before restarting. As part of this reinitialization,
2235 * find all packets still on the Tx ring and pretend that they had been
2236 * sent (in effect, drop the packets on the floor) - the higher-level
2237 * protocols will time out and retransmit. It'd be better to shuffle
2238 * these skbs to a temp list and then actually re-Tx them after
2239 * restarting the chip, but I'm too lazy to do so right now. dplatt@3do.com
2242 static void pcnet32_purge_tx_ring(struct net_device *dev)
2244 struct pcnet32_private *lp = netdev_priv(dev);
2247 for (i = 0; i < lp->tx_ring_size; i++) {
2248 lp->tx_ring[i].status = 0; /* CPU owns buffer */
2249 wmb(); /* Make sure adapter sees owner change */
2250 if (lp->tx_skbuff[i]) {
2251 pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[i],
2252 lp->tx_skbuff[i]->len,
2254 dev_kfree_skb_any(lp->tx_skbuff[i]);
2256 lp->tx_skbuff[i] = NULL;
2257 lp->tx_dma_addr[i] = 0;
2261 /* Initialize the PCNET32 Rx and Tx rings. */
2262 static int pcnet32_init_ring(struct net_device *dev)
2264 struct pcnet32_private *lp = netdev_priv(dev);
2268 lp->cur_rx = lp->cur_tx = 0;
2269 lp->dirty_rx = lp->dirty_tx = 0;
2271 for (i = 0; i < lp->rx_ring_size; i++) {
2272 struct sk_buff *rx_skbuff = lp->rx_skbuff[i];
2273 if (rx_skbuff == NULL) {
2274 lp->rx_skbuff[i] = dev_alloc_skb(PKT_BUF_SKB);
2275 rx_skbuff = lp->rx_skbuff[i];
2277 /* there is not much we can do at this point */
2278 netif_err(lp, drv, dev, "%s dev_alloc_skb failed\n",
2282 skb_reserve(rx_skbuff, NET_IP_ALIGN);
2286 if (lp->rx_dma_addr[i] == 0)
2287 lp->rx_dma_addr[i] =
2288 pci_map_single(lp->pci_dev, rx_skbuff->data,
2289 PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
2290 lp->rx_ring[i].base = cpu_to_le32(lp->rx_dma_addr[i]);
2291 lp->rx_ring[i].buf_length = cpu_to_le16(NEG_BUF_SIZE);
2292 wmb(); /* Make sure owner changes after all others are visible */
2293 lp->rx_ring[i].status = cpu_to_le16(0x8000);
2295 /* The Tx buffer address is filled in as needed, but we do need to clear
2296 * the upper ownership bit. */
2297 for (i = 0; i < lp->tx_ring_size; i++) {
2298 lp->tx_ring[i].status = 0; /* CPU owns buffer */
2299 wmb(); /* Make sure adapter sees owner change */
2300 lp->tx_ring[i].base = 0;
2301 lp->tx_dma_addr[i] = 0;
2304 lp->init_block->tlen_rlen =
2305 cpu_to_le16(lp->tx_len_bits | lp->rx_len_bits);
2306 for (i = 0; i < 6; i++)
2307 lp->init_block->phys_addr[i] = dev->dev_addr[i];
2308 lp->init_block->rx_ring = cpu_to_le32(lp->rx_ring_dma_addr);
2309 lp->init_block->tx_ring = cpu_to_le32(lp->tx_ring_dma_addr);
2310 wmb(); /* Make sure all changes are visible */
2314 /* the pcnet32 has been issued a stop or reset. Wait for the stop bit
2315 * then flush the pending transmit operations, re-initialize the ring,
2316 * and tell the chip to initialize.
2318 static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits)
2320 struct pcnet32_private *lp = netdev_priv(dev);
2321 unsigned long ioaddr = dev->base_addr;
2325 for (i = 0; i < 100; i++)
2326 if (lp->a.read_csr(ioaddr, CSR0) & CSR0_STOP)
2330 netif_err(lp, drv, dev, "%s timed out waiting for stop\n",
2333 pcnet32_purge_tx_ring(dev);
2334 if (pcnet32_init_ring(dev))
2338 lp->a.write_csr(ioaddr, CSR0, CSR0_INIT);
2341 if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON)
2344 lp->a.write_csr(ioaddr, CSR0, csr0_bits);
2347 static void pcnet32_tx_timeout(struct net_device *dev)
2349 struct pcnet32_private *lp = netdev_priv(dev);
2350 unsigned long ioaddr = dev->base_addr, flags;
2352 spin_lock_irqsave(&lp->lock, flags);
2353 /* Transmitter timeout, serious problems. */
2354 if (pcnet32_debug & NETIF_MSG_DRV)
2355 pr_err("%s: transmit timed out, status %4.4x, resetting\n",
2356 dev->name, lp->a.read_csr(ioaddr, CSR0));
2357 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP);
2358 dev->stats.tx_errors++;
2359 if (netif_msg_tx_err(lp)) {
2362 " Ring data dump: dirty_tx %d cur_tx %d%s cur_rx %d.",
2363 lp->dirty_tx, lp->cur_tx, lp->tx_full ? " (full)" : "",
2365 for (i = 0; i < lp->rx_ring_size; i++)
2366 printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ",
2367 le32_to_cpu(lp->rx_ring[i].base),
2368 (-le16_to_cpu(lp->rx_ring[i].buf_length)) &
2369 0xffff, le32_to_cpu(lp->rx_ring[i].msg_length),
2370 le16_to_cpu(lp->rx_ring[i].status));
2371 for (i = 0; i < lp->tx_ring_size; i++)
2372 printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ",
2373 le32_to_cpu(lp->tx_ring[i].base),
2374 (-le16_to_cpu(lp->tx_ring[i].length)) & 0xffff,
2375 le32_to_cpu(lp->tx_ring[i].misc),
2376 le16_to_cpu(lp->tx_ring[i].status));
2379 pcnet32_restart(dev, CSR0_NORMAL);
2381 dev->trans_start = jiffies; /* prevent tx timeout */
2382 netif_wake_queue(dev);
2384 spin_unlock_irqrestore(&lp->lock, flags);
2387 static netdev_tx_t pcnet32_start_xmit(struct sk_buff *skb,
2388 struct net_device *dev)
2390 struct pcnet32_private *lp = netdev_priv(dev);
2391 unsigned long ioaddr = dev->base_addr;
2394 unsigned long flags;
2396 spin_lock_irqsave(&lp->lock, flags);
2398 netif_printk(lp, tx_queued, KERN_DEBUG, dev,
2399 "%s() called, csr0 %4.4x\n",
2400 __func__, lp->a.read_csr(ioaddr, CSR0));
2402 /* Default status -- will not enable Successful-TxDone
2403 * interrupt when that option is available to us.
2407 /* Fill in a Tx ring entry */
2409 /* Mask to ring buffer boundary. */
2410 entry = lp->cur_tx & lp->tx_mod_mask;
2412 /* Caution: the write order is important here, set the status
2413 * with the "ownership" bits last. */
2415 lp->tx_ring[entry].length = cpu_to_le16(-skb->len);
2417 lp->tx_ring[entry].misc = 0x00000000;
2419 lp->tx_skbuff[entry] = skb;
2420 lp->tx_dma_addr[entry] =
2421 pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE);
2422 lp->tx_ring[entry].base = cpu_to_le32(lp->tx_dma_addr[entry]);
2423 wmb(); /* Make sure owner changes after all others are visible */
2424 lp->tx_ring[entry].status = cpu_to_le16(status);
2427 dev->stats.tx_bytes += skb->len;
2429 /* Trigger an immediate send poll. */
2430 lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL);
2432 if (lp->tx_ring[(entry + 1) & lp->tx_mod_mask].base != 0) {
2434 netif_stop_queue(dev);
2436 spin_unlock_irqrestore(&lp->lock, flags);
2437 return NETDEV_TX_OK;
2440 /* The PCNET32 interrupt handler. */
2442 pcnet32_interrupt(int irq, void *dev_id)
2444 struct net_device *dev = dev_id;
2445 struct pcnet32_private *lp;
2446 unsigned long ioaddr;
2448 int boguscnt = max_interrupt_work;
2450 ioaddr = dev->base_addr;
2451 lp = netdev_priv(dev);
2453 spin_lock(&lp->lock);
2455 csr0 = lp->a.read_csr(ioaddr, CSR0);
2456 while ((csr0 & 0x8f00) && --boguscnt >= 0) {
2458 break; /* PCMCIA remove happened */
2459 /* Acknowledge all of the current interrupt sources ASAP. */
2460 lp->a.write_csr(ioaddr, CSR0, csr0 & ~0x004f);
2462 netif_printk(lp, intr, KERN_DEBUG, dev,
2463 "interrupt csr0=%#2.2x new csr=%#2.2x\n",
2464 csr0, lp->a.read_csr(ioaddr, CSR0));
2466 /* Log misc errors. */
2468 dev->stats.tx_errors++; /* Tx babble. */
2469 if (csr0 & 0x1000) {
2471 * This happens when our receive ring is full. This
2472 * shouldn't be a problem as we will see normal rx
2473 * interrupts for the frames in the receive ring. But
2474 * there are some PCI chipsets (I can reproduce this
2475 * on SP3G with Intel saturn chipset) which have
2476 * sometimes problems and will fill up the receive
2477 * ring with error descriptors. In this situation we
2478 * don't get a rx interrupt, but a missed frame
2479 * interrupt sooner or later.
2481 dev->stats.rx_errors++; /* Missed a Rx frame. */
2483 if (csr0 & 0x0800) {
2484 netif_err(lp, drv, dev, "Bus master arbitration failure, status %4.4x\n",
2486 /* unlike for the lance, there is no restart needed */
2488 if (napi_schedule_prep(&lp->napi)) {
2490 /* set interrupt masks */
2491 val = lp->a.read_csr(ioaddr, CSR3);
2493 lp->a.write_csr(ioaddr, CSR3, val);
2495 __napi_schedule(&lp->napi);
2498 csr0 = lp->a.read_csr(ioaddr, CSR0);
2501 netif_printk(lp, intr, KERN_DEBUG, dev,
2502 "exiting interrupt, csr0=%#4.4x\n",
2503 lp->a.read_csr(ioaddr, CSR0));
2505 spin_unlock(&lp->lock);
2510 static int pcnet32_close(struct net_device *dev)
2512 unsigned long ioaddr = dev->base_addr;
2513 struct pcnet32_private *lp = netdev_priv(dev);
2514 unsigned long flags;
2516 del_timer_sync(&lp->watchdog_timer);
2518 netif_stop_queue(dev);
2519 napi_disable(&lp->napi);
2521 spin_lock_irqsave(&lp->lock, flags);
2523 dev->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112);
2525 netif_printk(lp, ifdown, KERN_DEBUG, dev,
2526 "Shutting down ethercard, status was %2.2x\n",
2527 lp->a.read_csr(ioaddr, CSR0));
2529 /* We stop the PCNET32 here -- it occasionally polls memory if we don't. */
2530 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP);
2533 * Switch back to 16bit mode to avoid problems with dumb
2534 * DOS packet driver after a warm reboot
2536 lp->a.write_bcr(ioaddr, 20, 4);
2538 spin_unlock_irqrestore(&lp->lock, flags);
2540 free_irq(dev->irq, dev);
2542 spin_lock_irqsave(&lp->lock, flags);
2544 pcnet32_purge_rx_ring(dev);
2545 pcnet32_purge_tx_ring(dev);
2547 spin_unlock_irqrestore(&lp->lock, flags);
2552 static struct net_device_stats *pcnet32_get_stats(struct net_device *dev)
2554 struct pcnet32_private *lp = netdev_priv(dev);
2555 unsigned long ioaddr = dev->base_addr;
2556 unsigned long flags;
2558 spin_lock_irqsave(&lp->lock, flags);
2559 dev->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112);
2560 spin_unlock_irqrestore(&lp->lock, flags);
2565 /* taken from the sunlance driver, which it took from the depca driver */
2566 static void pcnet32_load_multicast(struct net_device *dev)
2568 struct pcnet32_private *lp = netdev_priv(dev);
2569 volatile struct pcnet32_init_block *ib = lp->init_block;
2570 volatile __le16 *mcast_table = (__le16 *)ib->filter;
2571 struct netdev_hw_addr *ha;
2572 unsigned long ioaddr = dev->base_addr;
2577 /* set all multicast bits */
2578 if (dev->flags & IFF_ALLMULTI) {
2579 ib->filter[0] = cpu_to_le32(~0U);
2580 ib->filter[1] = cpu_to_le32(~0U);
2581 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER, 0xffff);
2582 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+1, 0xffff);
2583 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+2, 0xffff);
2584 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+3, 0xffff);
2587 /* clear the multicast filter */
2592 netdev_for_each_mc_addr(ha, dev) {
2595 /* multicast address? */
2599 crc = ether_crc_le(6, addrs);
2601 mcast_table[crc >> 4] |= cpu_to_le16(1 << (crc & 0xf));
2603 for (i = 0; i < 4; i++)
2604 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER + i,
2605 le16_to_cpu(mcast_table[i]));
2609 * Set or clear the multicast filter for this adaptor.
2611 static void pcnet32_set_multicast_list(struct net_device *dev)
2613 unsigned long ioaddr = dev->base_addr, flags;
2614 struct pcnet32_private *lp = netdev_priv(dev);
2615 int csr15, suspended;
2617 spin_lock_irqsave(&lp->lock, flags);
2618 suspended = pcnet32_suspend(dev, &flags, 0);
2619 csr15 = lp->a.read_csr(ioaddr, CSR15);
2620 if (dev->flags & IFF_PROMISC) {
2621 /* Log any net taps. */
2622 netif_info(lp, hw, dev, "Promiscuous mode enabled\n");
2623 lp->init_block->mode =
2624 cpu_to_le16(0x8000 | (lp->options & PCNET32_PORT_PORTSEL) <<
2626 lp->a.write_csr(ioaddr, CSR15, csr15 | 0x8000);
2628 lp->init_block->mode =
2629 cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7);
2630 lp->a.write_csr(ioaddr, CSR15, csr15 & 0x7fff);
2631 pcnet32_load_multicast(dev);
2636 /* clear SUSPEND (SPND) - CSR5 bit 0 */
2637 csr5 = lp->a.read_csr(ioaddr, CSR5);
2638 lp->a.write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND));
2640 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP);
2641 pcnet32_restart(dev, CSR0_NORMAL);
2642 netif_wake_queue(dev);
2645 spin_unlock_irqrestore(&lp->lock, flags);
2648 /* This routine assumes that the lp->lock is held */
2649 static int mdio_read(struct net_device *dev, int phy_id, int reg_num)
2651 struct pcnet32_private *lp = netdev_priv(dev);
2652 unsigned long ioaddr = dev->base_addr;
2658 lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f));
2659 val_out = lp->a.read_bcr(ioaddr, 34);
2664 /* This routine assumes that the lp->lock is held */
2665 static void mdio_write(struct net_device *dev, int phy_id, int reg_num, int val)
2667 struct pcnet32_private *lp = netdev_priv(dev);
2668 unsigned long ioaddr = dev->base_addr;
2673 lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f));
2674 lp->a.write_bcr(ioaddr, 34, val);
2677 static int pcnet32_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2679 struct pcnet32_private *lp = netdev_priv(dev);
2681 unsigned long flags;
2683 /* SIOC[GS]MIIxxx ioctls */
2685 spin_lock_irqsave(&lp->lock, flags);
2686 rc = generic_mii_ioctl(&lp->mii_if, if_mii(rq), cmd, NULL);
2687 spin_unlock_irqrestore(&lp->lock, flags);
2695 static int pcnet32_check_otherphy(struct net_device *dev)
2697 struct pcnet32_private *lp = netdev_priv(dev);
2698 struct mii_if_info mii = lp->mii_if;
2702 for (i = 0; i < PCNET32_MAX_PHYS; i++) {
2703 if (i == lp->mii_if.phy_id)
2704 continue; /* skip active phy */
2705 if (lp->phymask & (1 << i)) {
2707 if (mii_link_ok(&mii)) {
2708 /* found PHY with active link */
2709 netif_info(lp, link, dev, "Using PHY number %d\n",
2712 /* isolate inactive phy */
2714 mdio_read(dev, lp->mii_if.phy_id, MII_BMCR);
2715 mdio_write(dev, lp->mii_if.phy_id, MII_BMCR,
2716 bmcr | BMCR_ISOLATE);
2718 /* de-isolate new phy */
2719 bmcr = mdio_read(dev, i, MII_BMCR);
2720 mdio_write(dev, i, MII_BMCR,
2721 bmcr & ~BMCR_ISOLATE);
2723 /* set new phy address */
2724 lp->mii_if.phy_id = i;
2733 * Show the status of the media. Similar to mii_check_media however it
2734 * correctly shows the link speed for all (tested) pcnet32 variants.
2735 * Devices with no mii just report link state without speed.
2737 * Caller is assumed to hold and release the lp->lock.
2740 static void pcnet32_check_media(struct net_device *dev, int verbose)
2742 struct pcnet32_private *lp = netdev_priv(dev);
2744 int prev_link = netif_carrier_ok(dev) ? 1 : 0;
2748 curr_link = mii_link_ok(&lp->mii_if);
2750 ulong ioaddr = dev->base_addr; /* card base I/O address */
2751 curr_link = (lp->a.read_bcr(ioaddr, 4) != 0xc0);
2754 if (prev_link || verbose) {
2755 netif_carrier_off(dev);
2756 netif_info(lp, link, dev, "link down\n");
2758 if (lp->phycount > 1) {
2759 curr_link = pcnet32_check_otherphy(dev);
2762 } else if (verbose || !prev_link) {
2763 netif_carrier_on(dev);
2765 if (netif_msg_link(lp)) {
2766 struct ethtool_cmd ecmd = {
2767 .cmd = ETHTOOL_GSET };
2768 mii_ethtool_gset(&lp->mii_if, &ecmd);
2769 netdev_info(dev, "link up, %uMbps, %s-duplex\n",
2770 ethtool_cmd_speed(&ecmd),
2771 (ecmd.duplex == DUPLEX_FULL)
2774 bcr9 = lp->a.read_bcr(dev->base_addr, 9);
2775 if ((bcr9 & (1 << 0)) != lp->mii_if.full_duplex) {
2776 if (lp->mii_if.full_duplex)
2780 lp->a.write_bcr(dev->base_addr, 9, bcr9);
2783 netif_info(lp, link, dev, "link up\n");
2789 * Check for loss of link and link establishment.
2790 * Can not use mii_check_media because it does nothing if mode is forced.
2793 static void pcnet32_watchdog(struct net_device *dev)
2795 struct pcnet32_private *lp = netdev_priv(dev);
2796 unsigned long flags;
2798 /* Print the link status if it has changed */
2799 spin_lock_irqsave(&lp->lock, flags);
2800 pcnet32_check_media(dev, 0);
2801 spin_unlock_irqrestore(&lp->lock, flags);
2803 mod_timer(&lp->watchdog_timer, round_jiffies(PCNET32_WATCHDOG_TIMEOUT));
2806 static int pcnet32_pm_suspend(struct pci_dev *pdev, pm_message_t state)
2808 struct net_device *dev = pci_get_drvdata(pdev);
2810 if (netif_running(dev)) {
2811 netif_device_detach(dev);
2814 pci_save_state(pdev);
2815 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2819 static int pcnet32_pm_resume(struct pci_dev *pdev)
2821 struct net_device *dev = pci_get_drvdata(pdev);
2823 pci_set_power_state(pdev, PCI_D0);
2824 pci_restore_state(pdev);
2826 if (netif_running(dev)) {
2828 netif_device_attach(dev);
2833 static void __devexit pcnet32_remove_one(struct pci_dev *pdev)
2835 struct net_device *dev = pci_get_drvdata(pdev);
2838 struct pcnet32_private *lp = netdev_priv(dev);
2840 unregister_netdev(dev);
2841 pcnet32_free_ring(dev);
2842 release_region(dev->base_addr, PCNET32_TOTAL_SIZE);
2843 pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block),
2844 lp->init_block, lp->init_dma_addr);
2846 pci_disable_device(pdev);
2847 pci_set_drvdata(pdev, NULL);
2851 static struct pci_driver pcnet32_driver = {
2853 .probe = pcnet32_probe_pci,
2854 .remove = __devexit_p(pcnet32_remove_one),
2855 .id_table = pcnet32_pci_tbl,
2856 .suspend = pcnet32_pm_suspend,
2857 .resume = pcnet32_pm_resume,
2860 /* An additional parameter that may be passed in... */
2861 static int debug = -1;
2862 static int tx_start_pt = -1;
2863 static int pcnet32_have_pci;
2865 module_param(debug, int, 0);
2866 MODULE_PARM_DESC(debug, DRV_NAME " debug level");
2867 module_param(max_interrupt_work, int, 0);
2868 MODULE_PARM_DESC(max_interrupt_work,
2869 DRV_NAME " maximum events handled per interrupt");
2870 module_param(rx_copybreak, int, 0);
2871 MODULE_PARM_DESC(rx_copybreak,
2872 DRV_NAME " copy breakpoint for copy-only-tiny-frames");
2873 module_param(tx_start_pt, int, 0);
2874 MODULE_PARM_DESC(tx_start_pt, DRV_NAME " transmit start point (0-3)");
2875 module_param(pcnet32vlb, int, 0);
2876 MODULE_PARM_DESC(pcnet32vlb, DRV_NAME " Vesa local bus (VLB) support (0/1)");
2877 module_param_array(options, int, NULL, 0);
2878 MODULE_PARM_DESC(options, DRV_NAME " initial option setting(s) (0-15)");
2879 module_param_array(full_duplex, int, NULL, 0);
2880 MODULE_PARM_DESC(full_duplex, DRV_NAME " full duplex setting(s) (1)");
2881 /* Module Parameter for HomePNA cards added by Patrick Simmons, 2004 */
2882 module_param_array(homepna, int, NULL, 0);
2883 MODULE_PARM_DESC(homepna,
2885 " mode for 79C978 cards (1 for HomePNA, 0 for Ethernet, default Ethernet");
2887 MODULE_AUTHOR("Thomas Bogendoerfer");
2888 MODULE_DESCRIPTION("Driver for PCnet32 and PCnetPCI based ethercards");
2889 MODULE_LICENSE("GPL");
2891 #define PCNET32_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
2893 static int __init pcnet32_init_module(void)
2895 pr_info("%s", version);
2897 pcnet32_debug = netif_msg_init(debug, PCNET32_MSG_DEFAULT);
2899 if ((tx_start_pt >= 0) && (tx_start_pt <= 3))
2900 tx_start = tx_start_pt;
2902 /* find the PCI devices */
2903 if (!pci_register_driver(&pcnet32_driver))
2904 pcnet32_have_pci = 1;
2906 /* should we find any remaining VLbus devices ? */
2908 pcnet32_probe_vlbus(pcnet32_portlist);
2910 if (cards_found && (pcnet32_debug & NETIF_MSG_PROBE))
2911 pr_info("%d cards_found\n", cards_found);
2913 return (pcnet32_have_pci + cards_found) ? 0 : -ENODEV;
2916 static void __exit pcnet32_cleanup_module(void)
2918 struct net_device *next_dev;
2920 while (pcnet32_dev) {
2921 struct pcnet32_private *lp = netdev_priv(pcnet32_dev);
2922 next_dev = lp->next;
2923 unregister_netdev(pcnet32_dev);
2924 pcnet32_free_ring(pcnet32_dev);
2925 release_region(pcnet32_dev->base_addr, PCNET32_TOTAL_SIZE);
2926 pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block),
2927 lp->init_block, lp->init_dma_addr);
2928 free_netdev(pcnet32_dev);
2929 pcnet32_dev = next_dev;
2932 if (pcnet32_have_pci)
2933 pci_unregister_driver(&pcnet32_driver);
2936 module_init(pcnet32_init_module);
2937 module_exit(pcnet32_cleanup_module);