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 DRV_NAME "pcnet32"
25 #define DRV_VERSION "1.32"
26 #define DRV_RELDATE "18.Mar.2006"
27 #define PFX DRV_NAME ": "
29 static const char *const version
=
30 DRV_NAME
".c:v" DRV_VERSION
" " DRV_RELDATE
" tsbogend@alpha.franken.de\n";
32 #include <linux/module.h>
33 #include <linux/kernel.h>
34 #include <linux/string.h>
35 #include <linux/errno.h>
36 #include <linux/ioport.h>
37 #include <linux/slab.h>
38 #include <linux/interrupt.h>
39 #include <linux/pci.h>
40 #include <linux/delay.h>
41 #include <linux/init.h>
42 #include <linux/ethtool.h>
43 #include <linux/mii.h>
44 #include <linux/crc32.h>
45 #include <linux/netdevice.h>
46 #include <linux/etherdevice.h>
47 #include <linux/skbuff.h>
48 #include <linux/spinlock.h>
49 #include <linux/moduleparam.h>
50 #include <linux/bitops.h>
54 #include <asm/uaccess.h>
58 * PCI device identifiers for "new style" Linux PCI Device Drivers
60 static struct pci_device_id pcnet32_pci_tbl
[] = {
61 { PCI_DEVICE(PCI_VENDOR_ID_AMD
, PCI_DEVICE_ID_AMD_LANCE_HOME
), },
62 { PCI_DEVICE(PCI_VENDOR_ID_AMD
, PCI_DEVICE_ID_AMD_LANCE
), },
65 * Adapters that were sold with IBM's RS/6000 or pSeries hardware have
66 * the incorrect vendor id.
68 { PCI_DEVICE(PCI_VENDOR_ID_TRIDENT
, PCI_DEVICE_ID_AMD_LANCE
),
69 .class = (PCI_CLASS_NETWORK_ETHERNET
<< 8), .class_mask
= 0xffff00, },
71 { } /* terminate list */
74 MODULE_DEVICE_TABLE(pci
, pcnet32_pci_tbl
);
76 static int cards_found
;
81 static unsigned int pcnet32_portlist
[] __initdata
=
82 { 0x300, 0x320, 0x340, 0x360, 0 };
84 static int pcnet32_debug
= 0;
85 static int tx_start
= 1; /* Mapping -- 0:20, 1:64, 2:128, 3:~220 (depends on chip vers) */
86 static int pcnet32vlb
; /* check for VLB cards ? */
88 static struct net_device
*pcnet32_dev
;
90 static int max_interrupt_work
= 2;
91 static int rx_copybreak
= 200;
93 #define PCNET32_PORT_AUI 0x00
94 #define PCNET32_PORT_10BT 0x01
95 #define PCNET32_PORT_GPSI 0x02
96 #define PCNET32_PORT_MII 0x03
98 #define PCNET32_PORT_PORTSEL 0x03
99 #define PCNET32_PORT_ASEL 0x04
100 #define PCNET32_PORT_100 0x40
101 #define PCNET32_PORT_FD 0x80
103 #define PCNET32_DMA_MASK 0xffffffff
105 #define PCNET32_WATCHDOG_TIMEOUT (jiffies + (2 * HZ))
106 #define PCNET32_BLINK_TIMEOUT (jiffies + (HZ/4))
109 * table to translate option values from tulip
110 * to internal options
112 static const unsigned char options_mapping
[] = {
113 PCNET32_PORT_ASEL
, /* 0 Auto-select */
114 PCNET32_PORT_AUI
, /* 1 BNC/AUI */
115 PCNET32_PORT_AUI
, /* 2 AUI/BNC */
116 PCNET32_PORT_ASEL
, /* 3 not supported */
117 PCNET32_PORT_10BT
| PCNET32_PORT_FD
, /* 4 10baseT-FD */
118 PCNET32_PORT_ASEL
, /* 5 not supported */
119 PCNET32_PORT_ASEL
, /* 6 not supported */
120 PCNET32_PORT_ASEL
, /* 7 not supported */
121 PCNET32_PORT_ASEL
, /* 8 not supported */
122 PCNET32_PORT_MII
, /* 9 MII 10baseT */
123 PCNET32_PORT_MII
| PCNET32_PORT_FD
, /* 10 MII 10baseT-FD */
124 PCNET32_PORT_MII
, /* 11 MII (autosel) */
125 PCNET32_PORT_10BT
, /* 12 10BaseT */
126 PCNET32_PORT_MII
| PCNET32_PORT_100
, /* 13 MII 100BaseTx */
127 /* 14 MII 100BaseTx-FD */
128 PCNET32_PORT_MII
| PCNET32_PORT_100
| PCNET32_PORT_FD
,
129 PCNET32_PORT_ASEL
/* 15 not supported */
132 static const char pcnet32_gstrings_test
[][ETH_GSTRING_LEN
] = {
133 "Loopback test (offline)"
136 #define PCNET32_TEST_LEN (sizeof(pcnet32_gstrings_test) / ETH_GSTRING_LEN)
138 #define PCNET32_NUM_REGS 136
140 #define MAX_UNITS 8 /* More are supported, limit only on options */
141 static int options
[MAX_UNITS
];
142 static int full_duplex
[MAX_UNITS
];
143 static int homepna
[MAX_UNITS
];
146 * Theory of Operation
148 * This driver uses the same software structure as the normal lance
149 * driver. So look for a verbose description in lance.c. The differences
150 * to the normal lance driver is the use of the 32bit mode of PCnet32
151 * and PCnetPCI chips. Because these chips are 32bit chips, there is no
152 * 16MB limitation and we don't need bounce buffers.
156 * Set the number of Tx and Rx buffers, using Log_2(# buffers).
157 * Reasonable default values are 4 Tx buffers, and 16 Rx buffers.
158 * That translates to 2 (4 == 2^^2) and 4 (16 == 2^^4).
160 #ifndef PCNET32_LOG_TX_BUFFERS
161 #define PCNET32_LOG_TX_BUFFERS 4
162 #define PCNET32_LOG_RX_BUFFERS 5
163 #define PCNET32_LOG_MAX_TX_BUFFERS 9 /* 2^9 == 512 */
164 #define PCNET32_LOG_MAX_RX_BUFFERS 9
167 #define TX_RING_SIZE (1 << (PCNET32_LOG_TX_BUFFERS))
168 #define TX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_TX_BUFFERS))
170 #define RX_RING_SIZE (1 << (PCNET32_LOG_RX_BUFFERS))
171 #define RX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_RX_BUFFERS))
173 #define PKT_BUF_SZ 1544
175 /* Offsets from base I/O address. */
176 #define PCNET32_WIO_RDP 0x10
177 #define PCNET32_WIO_RAP 0x12
178 #define PCNET32_WIO_RESET 0x14
179 #define PCNET32_WIO_BDP 0x16
181 #define PCNET32_DWIO_RDP 0x10
182 #define PCNET32_DWIO_RAP 0x14
183 #define PCNET32_DWIO_RESET 0x18
184 #define PCNET32_DWIO_BDP 0x1C
186 #define PCNET32_TOTAL_SIZE 0x20
188 /* The PCNET32 Rx and Tx ring descriptors. */
189 struct pcnet32_rx_head
{
197 struct pcnet32_tx_head
{
205 /* The PCNET32 32-Bit initialization block, described in databook. */
206 struct pcnet32_init_block
{
212 /* Receive and transmit ring base, along with extra bits. */
217 /* PCnet32 access functions */
218 struct pcnet32_access
{
219 u16 (*read_csr
) (unsigned long, int);
220 void (*write_csr
) (unsigned long, int, u16
);
221 u16 (*read_bcr
) (unsigned long, int);
222 void (*write_bcr
) (unsigned long, int, u16
);
223 u16 (*read_rap
) (unsigned long);
224 void (*write_rap
) (unsigned long, u16
);
225 void (*reset
) (unsigned long);
229 * The first field of pcnet32_private is read by the ethernet device
230 * so the structure should be allocated using pci_alloc_consistent().
232 struct pcnet32_private
{
233 struct pcnet32_init_block init_block
;
234 /* The Tx and Rx ring entries must be aligned on 16-byte boundaries in 32bit mode. */
235 struct pcnet32_rx_head
*rx_ring
;
236 struct pcnet32_tx_head
*tx_ring
;
237 dma_addr_t dma_addr
;/* DMA address of beginning of this
238 object, returned by pci_alloc_consistent */
239 struct pci_dev
*pci_dev
;
241 /* The saved address of a sent-in-place packet/buffer, for skfree(). */
242 struct sk_buff
**tx_skbuff
;
243 struct sk_buff
**rx_skbuff
;
244 dma_addr_t
*tx_dma_addr
;
245 dma_addr_t
*rx_dma_addr
;
246 struct pcnet32_access a
;
247 spinlock_t lock
; /* Guard lock */
248 unsigned int cur_rx
, cur_tx
; /* The next free ring entry */
249 unsigned int rx_ring_size
; /* current rx ring size */
250 unsigned int tx_ring_size
; /* current tx ring size */
251 unsigned int rx_mod_mask
; /* rx ring modular mask */
252 unsigned int tx_mod_mask
; /* tx ring modular mask */
253 unsigned short rx_len_bits
;
254 unsigned short tx_len_bits
;
255 dma_addr_t rx_ring_dma_addr
;
256 dma_addr_t tx_ring_dma_addr
;
257 unsigned int dirty_rx
, /* ring entries to be freed. */
260 struct net_device_stats stats
;
262 char phycount
; /* number of phys found */
264 unsigned int shared_irq
:1, /* shared irq possible */
265 dxsuflo
:1, /* disable transmit stop on uflo */
266 mii
:1; /* mii port available */
267 struct net_device
*next
;
268 struct mii_if_info mii_if
;
269 struct timer_list watchdog_timer
;
270 struct timer_list blink_timer
;
271 u32 msg_enable
; /* debug message level */
273 /* each bit indicates an available PHY */
277 static int pcnet32_probe_pci(struct pci_dev
*, const struct pci_device_id
*);
278 static int pcnet32_probe1(unsigned long, int, struct pci_dev
*);
279 static int pcnet32_open(struct net_device
*);
280 static int pcnet32_init_ring(struct net_device
*);
281 static int pcnet32_start_xmit(struct sk_buff
*, struct net_device
*);
282 static int pcnet32_rx(struct net_device
*);
283 static void pcnet32_tx_timeout(struct net_device
*dev
);
284 static irqreturn_t
pcnet32_interrupt(int, void *, struct pt_regs
*);
285 static int pcnet32_close(struct net_device
*);
286 static struct net_device_stats
*pcnet32_get_stats(struct net_device
*);
287 static void pcnet32_load_multicast(struct net_device
*dev
);
288 static void pcnet32_set_multicast_list(struct net_device
*);
289 static int pcnet32_ioctl(struct net_device
*, struct ifreq
*, int);
290 static void pcnet32_watchdog(struct net_device
*);
291 static int mdio_read(struct net_device
*dev
, int phy_id
, int reg_num
);
292 static void mdio_write(struct net_device
*dev
, int phy_id
, int reg_num
,
294 static void pcnet32_restart(struct net_device
*dev
, unsigned int csr0_bits
);
295 static void pcnet32_ethtool_test(struct net_device
*dev
,
296 struct ethtool_test
*eth_test
, u64
* data
);
297 static int pcnet32_loopback_test(struct net_device
*dev
, uint64_t * data1
);
298 static int pcnet32_phys_id(struct net_device
*dev
, u32 data
);
299 static void pcnet32_led_blink_callback(struct net_device
*dev
);
300 static int pcnet32_get_regs_len(struct net_device
*dev
);
301 static void pcnet32_get_regs(struct net_device
*dev
, struct ethtool_regs
*regs
,
303 static void pcnet32_purge_tx_ring(struct net_device
*dev
);
304 static int pcnet32_alloc_ring(struct net_device
*dev
, char *name
);
305 static void pcnet32_free_ring(struct net_device
*dev
);
306 static void pcnet32_check_media(struct net_device
*dev
, int verbose
);
308 static u16
pcnet32_wio_read_csr(unsigned long addr
, int index
)
310 outw(index
, addr
+ PCNET32_WIO_RAP
);
311 return inw(addr
+ PCNET32_WIO_RDP
);
314 static void pcnet32_wio_write_csr(unsigned long addr
, int index
, u16 val
)
316 outw(index
, addr
+ PCNET32_WIO_RAP
);
317 outw(val
, addr
+ PCNET32_WIO_RDP
);
320 static u16
pcnet32_wio_read_bcr(unsigned long addr
, int index
)
322 outw(index
, addr
+ PCNET32_WIO_RAP
);
323 return inw(addr
+ PCNET32_WIO_BDP
);
326 static void pcnet32_wio_write_bcr(unsigned long addr
, int index
, u16 val
)
328 outw(index
, addr
+ PCNET32_WIO_RAP
);
329 outw(val
, addr
+ PCNET32_WIO_BDP
);
332 static u16
pcnet32_wio_read_rap(unsigned long addr
)
334 return inw(addr
+ PCNET32_WIO_RAP
);
337 static void pcnet32_wio_write_rap(unsigned long addr
, u16 val
)
339 outw(val
, addr
+ PCNET32_WIO_RAP
);
342 static void pcnet32_wio_reset(unsigned long addr
)
344 inw(addr
+ PCNET32_WIO_RESET
);
347 static int pcnet32_wio_check(unsigned long addr
)
349 outw(88, addr
+ PCNET32_WIO_RAP
);
350 return (inw(addr
+ PCNET32_WIO_RAP
) == 88);
353 static struct pcnet32_access pcnet32_wio
= {
354 .read_csr
= pcnet32_wio_read_csr
,
355 .write_csr
= pcnet32_wio_write_csr
,
356 .read_bcr
= pcnet32_wio_read_bcr
,
357 .write_bcr
= pcnet32_wio_write_bcr
,
358 .read_rap
= pcnet32_wio_read_rap
,
359 .write_rap
= pcnet32_wio_write_rap
,
360 .reset
= pcnet32_wio_reset
363 static u16
pcnet32_dwio_read_csr(unsigned long addr
, int index
)
365 outl(index
, addr
+ PCNET32_DWIO_RAP
);
366 return (inl(addr
+ PCNET32_DWIO_RDP
) & 0xffff);
369 static void pcnet32_dwio_write_csr(unsigned long addr
, int index
, u16 val
)
371 outl(index
, addr
+ PCNET32_DWIO_RAP
);
372 outl(val
, addr
+ PCNET32_DWIO_RDP
);
375 static u16
pcnet32_dwio_read_bcr(unsigned long addr
, int index
)
377 outl(index
, addr
+ PCNET32_DWIO_RAP
);
378 return (inl(addr
+ PCNET32_DWIO_BDP
) & 0xffff);
381 static void pcnet32_dwio_write_bcr(unsigned long addr
, int index
, u16 val
)
383 outl(index
, addr
+ PCNET32_DWIO_RAP
);
384 outl(val
, addr
+ PCNET32_DWIO_BDP
);
387 static u16
pcnet32_dwio_read_rap(unsigned long addr
)
389 return (inl(addr
+ PCNET32_DWIO_RAP
) & 0xffff);
392 static void pcnet32_dwio_write_rap(unsigned long addr
, u16 val
)
394 outl(val
, addr
+ PCNET32_DWIO_RAP
);
397 static void pcnet32_dwio_reset(unsigned long addr
)
399 inl(addr
+ PCNET32_DWIO_RESET
);
402 static int pcnet32_dwio_check(unsigned long addr
)
404 outl(88, addr
+ PCNET32_DWIO_RAP
);
405 return ((inl(addr
+ PCNET32_DWIO_RAP
) & 0xffff) == 88);
408 static struct pcnet32_access pcnet32_dwio
= {
409 .read_csr
= pcnet32_dwio_read_csr
,
410 .write_csr
= pcnet32_dwio_write_csr
,
411 .read_bcr
= pcnet32_dwio_read_bcr
,
412 .write_bcr
= pcnet32_dwio_write_bcr
,
413 .read_rap
= pcnet32_dwio_read_rap
,
414 .write_rap
= pcnet32_dwio_write_rap
,
415 .reset
= pcnet32_dwio_reset
418 #ifdef CONFIG_NET_POLL_CONTROLLER
419 static void pcnet32_poll_controller(struct net_device
*dev
)
421 disable_irq(dev
->irq
);
422 pcnet32_interrupt(0, dev
, NULL
);
423 enable_irq(dev
->irq
);
427 static int pcnet32_get_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
429 struct pcnet32_private
*lp
= dev
->priv
;
434 spin_lock_irqsave(&lp
->lock
, flags
);
435 mii_ethtool_gset(&lp
->mii_if
, cmd
);
436 spin_unlock_irqrestore(&lp
->lock
, flags
);
442 static int pcnet32_set_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
444 struct pcnet32_private
*lp
= dev
->priv
;
449 spin_lock_irqsave(&lp
->lock
, flags
);
450 r
= mii_ethtool_sset(&lp
->mii_if
, cmd
);
451 spin_unlock_irqrestore(&lp
->lock
, flags
);
456 static void pcnet32_get_drvinfo(struct net_device
*dev
,
457 struct ethtool_drvinfo
*info
)
459 struct pcnet32_private
*lp
= dev
->priv
;
461 strcpy(info
->driver
, DRV_NAME
);
462 strcpy(info
->version
, DRV_VERSION
);
464 strcpy(info
->bus_info
, pci_name(lp
->pci_dev
));
466 sprintf(info
->bus_info
, "VLB 0x%lx", dev
->base_addr
);
469 static u32
pcnet32_get_link(struct net_device
*dev
)
471 struct pcnet32_private
*lp
= dev
->priv
;
475 spin_lock_irqsave(&lp
->lock
, flags
);
477 r
= mii_link_ok(&lp
->mii_if
);
479 ulong ioaddr
= dev
->base_addr
; /* card base I/O address */
480 r
= (lp
->a
.read_bcr(ioaddr
, 4) != 0xc0);
482 spin_unlock_irqrestore(&lp
->lock
, flags
);
487 static u32
pcnet32_get_msglevel(struct net_device
*dev
)
489 struct pcnet32_private
*lp
= dev
->priv
;
490 return lp
->msg_enable
;
493 static void pcnet32_set_msglevel(struct net_device
*dev
, u32 value
)
495 struct pcnet32_private
*lp
= dev
->priv
;
496 lp
->msg_enable
= value
;
499 static int pcnet32_nway_reset(struct net_device
*dev
)
501 struct pcnet32_private
*lp
= dev
->priv
;
506 spin_lock_irqsave(&lp
->lock
, flags
);
507 r
= mii_nway_restart(&lp
->mii_if
);
508 spin_unlock_irqrestore(&lp
->lock
, flags
);
513 static void pcnet32_get_ringparam(struct net_device
*dev
,
514 struct ethtool_ringparam
*ering
)
516 struct pcnet32_private
*lp
= dev
->priv
;
518 ering
->tx_max_pending
= TX_MAX_RING_SIZE
;
519 ering
->tx_pending
= lp
->tx_ring_size
;
520 ering
->rx_max_pending
= RX_MAX_RING_SIZE
;
521 ering
->rx_pending
= lp
->rx_ring_size
;
524 static int pcnet32_set_ringparam(struct net_device
*dev
,
525 struct ethtool_ringparam
*ering
)
527 struct pcnet32_private
*lp
= dev
->priv
;
531 if (ering
->rx_mini_pending
|| ering
->rx_jumbo_pending
)
534 if (netif_running(dev
))
537 spin_lock_irqsave(&lp
->lock
, flags
);
538 pcnet32_free_ring(dev
);
540 min(ering
->tx_pending
, (unsigned int)TX_MAX_RING_SIZE
);
542 min(ering
->rx_pending
, (unsigned int)RX_MAX_RING_SIZE
);
544 /* set the minimum ring size to 4, to allow the loopback test to work
547 for (i
= 2; i
<= PCNET32_LOG_MAX_TX_BUFFERS
; i
++) {
548 if (lp
->tx_ring_size
<= (1 << i
))
551 lp
->tx_ring_size
= (1 << i
);
552 lp
->tx_mod_mask
= lp
->tx_ring_size
- 1;
553 lp
->tx_len_bits
= (i
<< 12);
555 for (i
= 2; i
<= PCNET32_LOG_MAX_RX_BUFFERS
; i
++) {
556 if (lp
->rx_ring_size
<= (1 << i
))
559 lp
->rx_ring_size
= (1 << i
);
560 lp
->rx_mod_mask
= lp
->rx_ring_size
- 1;
561 lp
->rx_len_bits
= (i
<< 4);
563 if (pcnet32_alloc_ring(dev
, dev
->name
)) {
564 pcnet32_free_ring(dev
);
565 spin_unlock_irqrestore(&lp
->lock
, flags
);
569 spin_unlock_irqrestore(&lp
->lock
, flags
);
571 if (pcnet32_debug
& NETIF_MSG_DRV
)
573 "%s: Ring Param Settings: RX: %d, TX: %d\n", dev
->name
,
574 lp
->rx_ring_size
, lp
->tx_ring_size
);
576 if (netif_running(dev
))
582 static void pcnet32_get_strings(struct net_device
*dev
, u32 stringset
,
585 memcpy(data
, pcnet32_gstrings_test
, sizeof(pcnet32_gstrings_test
));
588 static int pcnet32_self_test_count(struct net_device
*dev
)
590 return PCNET32_TEST_LEN
;
593 static void pcnet32_ethtool_test(struct net_device
*dev
,
594 struct ethtool_test
*test
, u64
* data
)
596 struct pcnet32_private
*lp
= dev
->priv
;
599 if (test
->flags
== ETH_TEST_FL_OFFLINE
) {
600 rc
= pcnet32_loopback_test(dev
, data
);
602 if (netif_msg_hw(lp
))
603 printk(KERN_DEBUG
"%s: Loopback test failed.\n",
605 test
->flags
|= ETH_TEST_FL_FAILED
;
606 } else if (netif_msg_hw(lp
))
607 printk(KERN_DEBUG
"%s: Loopback test passed.\n",
609 } else if (netif_msg_hw(lp
))
611 "%s: No tests to run (specify 'Offline' on ethtool).",
613 } /* end pcnet32_ethtool_test */
615 static int pcnet32_loopback_test(struct net_device
*dev
, uint64_t * data1
)
617 struct pcnet32_private
*lp
= dev
->priv
;
618 struct pcnet32_access
*a
= &lp
->a
; /* access to registers */
619 ulong ioaddr
= dev
->base_addr
; /* card base I/O address */
620 struct sk_buff
*skb
; /* sk buff */
621 int x
, i
; /* counters */
622 int numbuffs
= 4; /* number of TX/RX buffers and descs */
623 u16 status
= 0x8300; /* TX ring status */
624 u16 teststatus
; /* test of ring status */
625 int rc
; /* return code */
626 int size
; /* size of packets */
627 unsigned char *packet
; /* source packet data */
628 static const int data_len
= 60; /* length of source packets */
632 *data1
= 1; /* status of test, default to fail */
633 rc
= 1; /* default to fail */
635 if (netif_running(dev
))
638 spin_lock_irqsave(&lp
->lock
, flags
);
640 /* Reset the PCNET32 */
643 /* switch pcnet32 to 32bit mode */
644 lp
->a
.write_bcr(ioaddr
, 20, 2);
646 lp
->init_block
.mode
=
647 le16_to_cpu((lp
->options
& PCNET32_PORT_PORTSEL
) << 7);
648 lp
->init_block
.filter
[0] = 0;
649 lp
->init_block
.filter
[1] = 0;
651 /* purge & init rings but don't actually restart */
652 pcnet32_restart(dev
, 0x0000);
654 lp
->a
.write_csr(ioaddr
, 0, 0x0004); /* Set STOP bit */
656 /* Initialize Transmit buffers. */
657 size
= data_len
+ 15;
658 for (x
= 0; x
< numbuffs
; x
++) {
659 if (!(skb
= dev_alloc_skb(size
))) {
660 if (netif_msg_hw(lp
))
662 "%s: Cannot allocate skb at line: %d!\n",
663 dev
->name
, __LINE__
);
667 skb_put(skb
, size
); /* create space for data */
668 lp
->tx_skbuff
[x
] = skb
;
669 lp
->tx_ring
[x
].length
= le16_to_cpu(-skb
->len
);
670 lp
->tx_ring
[x
].misc
= 0;
672 /* put DA and SA into the skb */
673 for (i
= 0; i
< 6; i
++)
674 *packet
++ = dev
->dev_addr
[i
];
675 for (i
= 0; i
< 6; i
++)
676 *packet
++ = dev
->dev_addr
[i
];
682 /* fill packet with data */
683 for (i
= 0; i
< data_len
; i
++)
687 pci_map_single(lp
->pci_dev
, skb
->data
, skb
->len
,
689 lp
->tx_ring
[x
].base
=
690 (u32
) le32_to_cpu(lp
->tx_dma_addr
[x
]);
691 wmb(); /* Make sure owner changes after all others are visible */
692 lp
->tx_ring
[x
].status
= le16_to_cpu(status
);
696 x
= a
->read_bcr(ioaddr
, 32); /* set internal loopback in BSR32 */
698 a
->write_bcr(ioaddr
, 32, x
);
700 lp
->a
.write_csr(ioaddr
, 15, 0x0044); /* set int loopback in CSR15 */
702 teststatus
= le16_to_cpu(0x8000);
703 lp
->a
.write_csr(ioaddr
, 0, 0x0002); /* Set STRT bit */
705 /* Check status of descriptors */
706 for (x
= 0; x
< numbuffs
; x
++) {
709 while ((lp
->rx_ring
[x
].status
& teststatus
) && (ticks
< 200)) {
710 spin_unlock_irqrestore(&lp
->lock
, flags
);
712 spin_lock_irqsave(&lp
->lock
, flags
);
717 if (netif_msg_hw(lp
))
718 printk("%s: Desc %d failed to reset!\n",
724 lp
->a
.write_csr(ioaddr
, 0, 0x0004); /* Set STOP bit */
726 if (netif_msg_hw(lp
) && netif_msg_pktdata(lp
)) {
727 printk(KERN_DEBUG
"%s: RX loopback packets:\n", dev
->name
);
729 for (x
= 0; x
< numbuffs
; x
++) {
730 printk(KERN_DEBUG
"%s: Packet %d:\n", dev
->name
, x
);
731 skb
= lp
->rx_skbuff
[x
];
732 for (i
= 0; i
< size
; i
++) {
733 printk("%02x ", *(skb
->data
+ i
));
741 while (x
< numbuffs
&& !rc
) {
742 skb
= lp
->rx_skbuff
[x
];
743 packet
= lp
->tx_skbuff
[x
]->data
;
744 for (i
= 0; i
< size
; i
++) {
745 if (*(skb
->data
+ i
) != packet
[i
]) {
746 if (netif_msg_hw(lp
))
748 "%s: Error in compare! %2x - %02x %02x\n",
749 dev
->name
, i
, *(skb
->data
+ i
),
762 pcnet32_purge_tx_ring(dev
);
763 x
= a
->read_csr(ioaddr
, 15) & 0xFFFF;
764 a
->write_csr(ioaddr
, 15, (x
& ~0x0044)); /* reset bits 6 and 2 */
766 x
= a
->read_bcr(ioaddr
, 32); /* reset internal loopback */
768 a
->write_bcr(ioaddr
, 32, x
);
770 spin_unlock_irqrestore(&lp
->lock
, flags
);
772 if (netif_running(dev
)) {
775 lp
->a
.write_bcr(ioaddr
, 20, 4); /* return to 16bit mode */
779 } /* end pcnet32_loopback_test */
781 static void pcnet32_led_blink_callback(struct net_device
*dev
)
783 struct pcnet32_private
*lp
= dev
->priv
;
784 struct pcnet32_access
*a
= &lp
->a
;
785 ulong ioaddr
= dev
->base_addr
;
789 spin_lock_irqsave(&lp
->lock
, flags
);
790 for (i
= 4; i
< 8; i
++) {
791 a
->write_bcr(ioaddr
, i
, a
->read_bcr(ioaddr
, i
) ^ 0x4000);
793 spin_unlock_irqrestore(&lp
->lock
, flags
);
795 mod_timer(&lp
->blink_timer
, PCNET32_BLINK_TIMEOUT
);
798 static int pcnet32_phys_id(struct net_device
*dev
, u32 data
)
800 struct pcnet32_private
*lp
= dev
->priv
;
801 struct pcnet32_access
*a
= &lp
->a
;
802 ulong ioaddr
= dev
->base_addr
;
806 if (!lp
->blink_timer
.function
) {
807 init_timer(&lp
->blink_timer
);
808 lp
->blink_timer
.function
= (void *)pcnet32_led_blink_callback
;
809 lp
->blink_timer
.data
= (unsigned long)dev
;
812 /* Save the current value of the bcrs */
813 spin_lock_irqsave(&lp
->lock
, flags
);
814 for (i
= 4; i
< 8; i
++) {
815 regs
[i
- 4] = a
->read_bcr(ioaddr
, i
);
817 spin_unlock_irqrestore(&lp
->lock
, flags
);
819 mod_timer(&lp
->blink_timer
, jiffies
);
820 set_current_state(TASK_INTERRUPTIBLE
);
822 if ((!data
) || (data
> (u32
) (MAX_SCHEDULE_TIMEOUT
/ HZ
)))
823 data
= (u32
) (MAX_SCHEDULE_TIMEOUT
/ HZ
);
825 msleep_interruptible(data
* 1000);
826 del_timer_sync(&lp
->blink_timer
);
828 /* Restore the original value of the bcrs */
829 spin_lock_irqsave(&lp
->lock
, flags
);
830 for (i
= 4; i
< 8; i
++) {
831 a
->write_bcr(ioaddr
, i
, regs
[i
- 4]);
833 spin_unlock_irqrestore(&lp
->lock
, flags
);
838 #define PCNET32_REGS_PER_PHY 32
839 #define PCNET32_MAX_PHYS 32
840 static int pcnet32_get_regs_len(struct net_device
*dev
)
842 struct pcnet32_private
*lp
= dev
->priv
;
843 int j
= lp
->phycount
* PCNET32_REGS_PER_PHY
;
845 return ((PCNET32_NUM_REGS
+ j
) * sizeof(u16
));
848 static void pcnet32_get_regs(struct net_device
*dev
, struct ethtool_regs
*regs
,
853 struct pcnet32_private
*lp
= dev
->priv
;
854 struct pcnet32_access
*a
= &lp
->a
;
855 ulong ioaddr
= dev
->base_addr
;
859 spin_lock_irqsave(&lp
->lock
, flags
);
861 csr0
= a
->read_csr(ioaddr
, 0);
862 if (!(csr0
& 0x0004)) { /* If not stopped */
863 /* set SUSPEND (SPND) - CSR5 bit 0 */
864 a
->write_csr(ioaddr
, 5, 0x0001);
866 /* poll waiting for bit to be set */
868 while (!(a
->read_csr(ioaddr
, 5) & 0x0001)) {
869 spin_unlock_irqrestore(&lp
->lock
, flags
);
871 spin_lock_irqsave(&lp
->lock
, flags
);
874 if (netif_msg_hw(lp
))
876 "%s: Error getting into suspend!\n",
883 /* read address PROM */
884 for (i
= 0; i
< 16; i
+= 2)
885 *buff
++ = inw(ioaddr
+ i
);
887 /* read control and status registers */
888 for (i
= 0; i
< 90; i
++) {
889 *buff
++ = a
->read_csr(ioaddr
, i
);
892 *buff
++ = a
->read_csr(ioaddr
, 112);
893 *buff
++ = a
->read_csr(ioaddr
, 114);
895 /* read bus configuration registers */
896 for (i
= 0; i
< 30; i
++) {
897 *buff
++ = a
->read_bcr(ioaddr
, i
);
899 *buff
++ = 0; /* skip bcr30 so as not to hang 79C976 */
900 for (i
= 31; i
< 36; i
++) {
901 *buff
++ = a
->read_bcr(ioaddr
, i
);
904 /* read mii phy registers */
907 for (j
= 0; j
< PCNET32_MAX_PHYS
; j
++) {
908 if (lp
->phymask
& (1 << j
)) {
909 for (i
= 0; i
< PCNET32_REGS_PER_PHY
; i
++) {
910 lp
->a
.write_bcr(ioaddr
, 33,
912 *buff
++ = lp
->a
.read_bcr(ioaddr
, 34);
918 if (!(csr0
& 0x0004)) { /* If not stopped */
919 /* clear SUSPEND (SPND) - CSR5 bit 0 */
920 a
->write_csr(ioaddr
, 5, 0x0000);
923 spin_unlock_irqrestore(&lp
->lock
, flags
);
926 static struct ethtool_ops pcnet32_ethtool_ops
= {
927 .get_settings
= pcnet32_get_settings
,
928 .set_settings
= pcnet32_set_settings
,
929 .get_drvinfo
= pcnet32_get_drvinfo
,
930 .get_msglevel
= pcnet32_get_msglevel
,
931 .set_msglevel
= pcnet32_set_msglevel
,
932 .nway_reset
= pcnet32_nway_reset
,
933 .get_link
= pcnet32_get_link
,
934 .get_ringparam
= pcnet32_get_ringparam
,
935 .set_ringparam
= pcnet32_set_ringparam
,
936 .get_tx_csum
= ethtool_op_get_tx_csum
,
937 .get_sg
= ethtool_op_get_sg
,
938 .get_tso
= ethtool_op_get_tso
,
939 .get_strings
= pcnet32_get_strings
,
940 .self_test_count
= pcnet32_self_test_count
,
941 .self_test
= pcnet32_ethtool_test
,
942 .phys_id
= pcnet32_phys_id
,
943 .get_regs_len
= pcnet32_get_regs_len
,
944 .get_regs
= pcnet32_get_regs
,
945 .get_perm_addr
= ethtool_op_get_perm_addr
,
948 /* only probes for non-PCI devices, the rest are handled by
949 * pci_register_driver via pcnet32_probe_pci */
951 static void __devinit
pcnet32_probe_vlbus(unsigned int *pcnet32_portlist
)
953 unsigned int *port
, ioaddr
;
955 /* search for PCnet32 VLB cards at known addresses */
956 for (port
= pcnet32_portlist
; (ioaddr
= *port
); port
++) {
958 (ioaddr
, PCNET32_TOTAL_SIZE
, "pcnet32_probe_vlbus")) {
959 /* check if there is really a pcnet chip on that ioaddr */
960 if ((inb(ioaddr
+ 14) == 0x57)
961 && (inb(ioaddr
+ 15) == 0x57)) {
962 pcnet32_probe1(ioaddr
, 0, NULL
);
964 release_region(ioaddr
, PCNET32_TOTAL_SIZE
);
971 pcnet32_probe_pci(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
973 unsigned long ioaddr
;
976 err
= pci_enable_device(pdev
);
978 if (pcnet32_debug
& NETIF_MSG_PROBE
)
980 "failed to enable device -- err=%d\n", err
);
983 pci_set_master(pdev
);
985 ioaddr
= pci_resource_start(pdev
, 0);
987 if (pcnet32_debug
& NETIF_MSG_PROBE
)
989 "card has no PCI IO resources, aborting\n");
993 if (!pci_dma_supported(pdev
, PCNET32_DMA_MASK
)) {
994 if (pcnet32_debug
& NETIF_MSG_PROBE
)
996 "architecture does not support 32bit PCI busmaster DMA\n");
999 if (request_region(ioaddr
, PCNET32_TOTAL_SIZE
, "pcnet32_probe_pci") ==
1001 if (pcnet32_debug
& NETIF_MSG_PROBE
)
1003 "io address range already allocated\n");
1007 err
= pcnet32_probe1(ioaddr
, 1, pdev
);
1009 pci_disable_device(pdev
);
1015 * Called from both pcnet32_probe_vlbus and pcnet_probe_pci.
1016 * pdev will be NULL when called from pcnet32_probe_vlbus.
1018 static int __devinit
1019 pcnet32_probe1(unsigned long ioaddr
, int shared
, struct pci_dev
*pdev
)
1021 struct pcnet32_private
*lp
;
1022 dma_addr_t lp_dma_addr
;
1024 int fdx
, mii
, fset
, dxsuflo
;
1027 struct net_device
*dev
;
1028 struct pcnet32_access
*a
= NULL
;
1032 /* reset the chip */
1033 pcnet32_wio_reset(ioaddr
);
1035 /* NOTE: 16-bit check is first, otherwise some older PCnet chips fail */
1036 if (pcnet32_wio_read_csr(ioaddr
, 0) == 4 && pcnet32_wio_check(ioaddr
)) {
1039 pcnet32_dwio_reset(ioaddr
);
1040 if (pcnet32_dwio_read_csr(ioaddr
, 0) == 4
1041 && pcnet32_dwio_check(ioaddr
)) {
1044 goto err_release_region
;
1048 a
->read_csr(ioaddr
, 88) | (a
->read_csr(ioaddr
, 89) << 16);
1049 if ((pcnet32_debug
& NETIF_MSG_PROBE
) && (pcnet32_debug
& NETIF_MSG_HW
))
1050 printk(KERN_INFO
" PCnet chip version is %#x.\n",
1052 if ((chip_version
& 0xfff) != 0x003) {
1053 if (pcnet32_debug
& NETIF_MSG_PROBE
)
1054 printk(KERN_INFO PFX
"Unsupported chip version.\n");
1055 goto err_release_region
;
1058 /* initialize variables */
1059 fdx
= mii
= fset
= dxsuflo
= 0;
1060 chip_version
= (chip_version
>> 12) & 0xffff;
1062 switch (chip_version
) {
1064 chipname
= "PCnet/PCI 79C970"; /* PCI */
1068 chipname
= "PCnet/PCI 79C970"; /* 970 gives the wrong chip id back */
1070 chipname
= "PCnet/32 79C965"; /* 486/VL bus */
1073 chipname
= "PCnet/PCI II 79C970A"; /* PCI */
1077 chipname
= "PCnet/FAST 79C971"; /* PCI */
1083 chipname
= "PCnet/FAST+ 79C972"; /* PCI */
1089 chipname
= "PCnet/FAST III 79C973"; /* PCI */
1094 chipname
= "PCnet/Home 79C978"; /* PCI */
1097 * This is based on specs published at www.amd.com. This section
1098 * assumes that a card with a 79C978 wants to go into standard
1099 * ethernet mode. The 79C978 can also go into 1Mb HomePNA mode,
1100 * and the module option homepna=1 can select this instead.
1102 media
= a
->read_bcr(ioaddr
, 49);
1103 media
&= ~3; /* default to 10Mb ethernet */
1104 if (cards_found
< MAX_UNITS
&& homepna
[cards_found
])
1105 media
|= 1; /* switch to home wiring mode */
1106 if (pcnet32_debug
& NETIF_MSG_PROBE
)
1107 printk(KERN_DEBUG PFX
"media set to %sMbit mode.\n",
1108 (media
& 1) ? "1" : "10");
1109 a
->write_bcr(ioaddr
, 49, media
);
1112 chipname
= "PCnet/FAST III 79C975"; /* PCI */
1117 chipname
= "PCnet/PRO 79C976";
1122 if (pcnet32_debug
& NETIF_MSG_PROBE
)
1123 printk(KERN_INFO PFX
1124 "PCnet version %#x, no PCnet32 chip.\n",
1126 goto err_release_region
;
1130 * On selected chips turn on the BCR18:NOUFLO bit. This stops transmit
1131 * starting until the packet is loaded. Strike one for reliability, lose
1132 * one for latency - although on PCI this isnt a big loss. Older chips
1133 * have FIFO's smaller than a packet, so you can't do this.
1134 * Turn on BCR18:BurstRdEn and BCR18:BurstWrEn.
1138 a
->write_bcr(ioaddr
, 18, (a
->read_bcr(ioaddr
, 18) | 0x0860));
1139 a
->write_csr(ioaddr
, 80,
1140 (a
->read_csr(ioaddr
, 80) & 0x0C00) | 0x0c00);
1144 dev
= alloc_etherdev(0);
1146 if (pcnet32_debug
& NETIF_MSG_PROBE
)
1147 printk(KERN_ERR PFX
"Memory allocation failed.\n");
1149 goto err_release_region
;
1151 SET_NETDEV_DEV(dev
, &pdev
->dev
);
1153 if (pcnet32_debug
& NETIF_MSG_PROBE
)
1154 printk(KERN_INFO PFX
"%s at %#3lx,", chipname
, ioaddr
);
1156 /* In most chips, after a chip reset, the ethernet address is read from the
1157 * station address PROM at the base address and programmed into the
1158 * "Physical Address Registers" CSR12-14.
1159 * As a precautionary measure, we read the PROM values and complain if
1160 * they disagree with the CSRs. If they miscompare, and the PROM addr
1161 * is valid, then the PROM addr is used.
1163 for (i
= 0; i
< 3; i
++) {
1165 val
= a
->read_csr(ioaddr
, i
+ 12) & 0x0ffff;
1166 /* There may be endianness issues here. */
1167 dev
->dev_addr
[2 * i
] = val
& 0x0ff;
1168 dev
->dev_addr
[2 * i
+ 1] = (val
>> 8) & 0x0ff;
1171 /* read PROM address and compare with CSR address */
1172 for (i
= 0; i
< 6; i
++)
1173 promaddr
[i
] = inb(ioaddr
+ i
);
1175 if (memcmp(promaddr
, dev
->dev_addr
, 6)
1176 || !is_valid_ether_addr(dev
->dev_addr
)) {
1177 if (is_valid_ether_addr(promaddr
)) {
1178 if (pcnet32_debug
& NETIF_MSG_PROBE
) {
1179 printk(" warning: CSR address invalid,\n");
1181 " using instead PROM address of");
1183 memcpy(dev
->dev_addr
, promaddr
, 6);
1186 memcpy(dev
->perm_addr
, dev
->dev_addr
, dev
->addr_len
);
1188 /* if the ethernet address is not valid, force to 00:00:00:00:00:00 */
1189 if (!is_valid_ether_addr(dev
->perm_addr
))
1190 memset(dev
->dev_addr
, 0, sizeof(dev
->dev_addr
));
1192 if (pcnet32_debug
& NETIF_MSG_PROBE
) {
1193 for (i
= 0; i
< 6; i
++)
1194 printk(" %2.2x", dev
->dev_addr
[i
]);
1196 /* Version 0x2623 and 0x2624 */
1197 if (((chip_version
+ 1) & 0xfffe) == 0x2624) {
1198 i
= a
->read_csr(ioaddr
, 80) & 0x0C00; /* Check tx_start_pt */
1199 printk("\n" KERN_INFO
" tx_start_pt(0x%04x):", i
);
1202 printk(" 20 bytes,");
1205 printk(" 64 bytes,");
1208 printk(" 128 bytes,");
1211 printk("~220 bytes,");
1214 i
= a
->read_bcr(ioaddr
, 18); /* Check Burst/Bus control */
1215 printk(" BCR18(%x):", i
& 0xffff);
1217 printk("BurstWrEn ");
1219 printk("BurstRdEn ");
1224 i
= a
->read_bcr(ioaddr
, 25);
1225 printk("\n" KERN_INFO
" SRAMSIZE=0x%04x,", i
<< 8);
1226 i
= a
->read_bcr(ioaddr
, 26);
1227 printk(" SRAM_BND=0x%04x,", i
<< 8);
1228 i
= a
->read_bcr(ioaddr
, 27);
1234 dev
->base_addr
= ioaddr
;
1235 /* pci_alloc_consistent returns page-aligned memory, so we do not have to check the alignment */
1237 pci_alloc_consistent(pdev
, sizeof(*lp
), &lp_dma_addr
)) == NULL
) {
1238 if (pcnet32_debug
& NETIF_MSG_PROBE
)
1240 "Consistent memory allocation failed.\n");
1242 goto err_free_netdev
;
1245 memset(lp
, 0, sizeof(*lp
));
1246 lp
->dma_addr
= lp_dma_addr
;
1249 spin_lock_init(&lp
->lock
);
1251 SET_MODULE_OWNER(dev
);
1252 SET_NETDEV_DEV(dev
, &pdev
->dev
);
1254 lp
->name
= chipname
;
1255 lp
->shared_irq
= shared
;
1256 lp
->tx_ring_size
= TX_RING_SIZE
; /* default tx ring size */
1257 lp
->rx_ring_size
= RX_RING_SIZE
; /* default rx ring size */
1258 lp
->tx_mod_mask
= lp
->tx_ring_size
- 1;
1259 lp
->rx_mod_mask
= lp
->rx_ring_size
- 1;
1260 lp
->tx_len_bits
= (PCNET32_LOG_TX_BUFFERS
<< 12);
1261 lp
->rx_len_bits
= (PCNET32_LOG_RX_BUFFERS
<< 4);
1262 lp
->mii_if
.full_duplex
= fdx
;
1263 lp
->mii_if
.phy_id_mask
= 0x1f;
1264 lp
->mii_if
.reg_num_mask
= 0x1f;
1265 lp
->dxsuflo
= dxsuflo
;
1267 lp
->msg_enable
= pcnet32_debug
;
1268 if ((cards_found
>= MAX_UNITS
)
1269 || (options
[cards_found
] > sizeof(options_mapping
)))
1270 lp
->options
= PCNET32_PORT_ASEL
;
1272 lp
->options
= options_mapping
[options
[cards_found
]];
1273 lp
->mii_if
.dev
= dev
;
1274 lp
->mii_if
.mdio_read
= mdio_read
;
1275 lp
->mii_if
.mdio_write
= mdio_write
;
1277 if (fdx
&& !(lp
->options
& PCNET32_PORT_ASEL
) &&
1278 ((cards_found
>= MAX_UNITS
) || full_duplex
[cards_found
]))
1279 lp
->options
|= PCNET32_PORT_FD
;
1282 if (pcnet32_debug
& NETIF_MSG_PROBE
)
1283 printk(KERN_ERR PFX
"No access methods\n");
1285 goto err_free_consistent
;
1289 /* prior to register_netdev, dev->name is not yet correct */
1290 if (pcnet32_alloc_ring(dev
, pci_name(lp
->pci_dev
))) {
1294 /* detect special T1/E1 WAN card by checking for MAC address */
1295 if (dev
->dev_addr
[0] == 0x00 && dev
->dev_addr
[1] == 0xe0
1296 && dev
->dev_addr
[2] == 0x75)
1297 lp
->options
= PCNET32_PORT_FD
| PCNET32_PORT_GPSI
;
1299 lp
->init_block
.mode
= le16_to_cpu(0x0003); /* Disable Rx and Tx. */
1300 lp
->init_block
.tlen_rlen
=
1301 le16_to_cpu(lp
->tx_len_bits
| lp
->rx_len_bits
);
1302 for (i
= 0; i
< 6; i
++)
1303 lp
->init_block
.phys_addr
[i
] = dev
->dev_addr
[i
];
1304 lp
->init_block
.filter
[0] = 0x00000000;
1305 lp
->init_block
.filter
[1] = 0x00000000;
1306 lp
->init_block
.rx_ring
= (u32
) le32_to_cpu(lp
->rx_ring_dma_addr
);
1307 lp
->init_block
.tx_ring
= (u32
) le32_to_cpu(lp
->tx_ring_dma_addr
);
1309 /* switch pcnet32 to 32bit mode */
1310 a
->write_bcr(ioaddr
, 20, 2);
1312 a
->write_csr(ioaddr
, 1, (lp
->dma_addr
+ offsetof(struct pcnet32_private
,
1313 init_block
)) & 0xffff);
1314 a
->write_csr(ioaddr
, 2, (lp
->dma_addr
+ offsetof(struct pcnet32_private
,
1315 init_block
)) >> 16);
1317 if (pdev
) { /* use the IRQ provided by PCI */
1318 dev
->irq
= pdev
->irq
;
1319 if (pcnet32_debug
& NETIF_MSG_PROBE
)
1320 printk(" assigned IRQ %d.\n", dev
->irq
);
1322 unsigned long irq_mask
= probe_irq_on();
1325 * To auto-IRQ we enable the initialization-done and DMA error
1326 * interrupts. For ISA boards we get a DMA error, but VLB and PCI
1329 /* Trigger an initialization just for the interrupt. */
1330 a
->write_csr(ioaddr
, 0, 0x41);
1333 dev
->irq
= probe_irq_off(irq_mask
);
1335 if (pcnet32_debug
& NETIF_MSG_PROBE
)
1336 printk(", failed to detect IRQ line.\n");
1340 if (pcnet32_debug
& NETIF_MSG_PROBE
)
1341 printk(", probed IRQ %d.\n", dev
->irq
);
1344 /* Set the mii phy_id so that we can query the link state */
1346 /* lp->phycount and lp->phymask are set to 0 by memset above */
1348 lp
->mii_if
.phy_id
= ((lp
->a
.read_bcr(ioaddr
, 33)) >> 5) & 0x1f;
1350 for (i
= 0; i
< PCNET32_MAX_PHYS
; i
++) {
1351 unsigned short id1
, id2
;
1353 id1
= mdio_read(dev
, i
, MII_PHYSID1
);
1356 id2
= mdio_read(dev
, i
, MII_PHYSID2
);
1359 if (i
== 31 && ((chip_version
+ 1) & 0xfffe) == 0x2624)
1360 continue; /* 79C971 & 79C972 have phantom phy at id 31 */
1362 lp
->phymask
|= (1 << i
);
1363 lp
->mii_if
.phy_id
= i
;
1364 if (pcnet32_debug
& NETIF_MSG_PROBE
)
1365 printk(KERN_INFO PFX
1366 "Found PHY %04x:%04x at address %d.\n",
1369 lp
->a
.write_bcr(ioaddr
, 33, (lp
->mii_if
.phy_id
) << 5);
1370 if (lp
->phycount
> 1) {
1371 lp
->options
|= PCNET32_PORT_MII
;
1375 init_timer(&lp
->watchdog_timer
);
1376 lp
->watchdog_timer
.data
= (unsigned long)dev
;
1377 lp
->watchdog_timer
.function
= (void *)&pcnet32_watchdog
;
1379 /* The PCNET32-specific entries in the device structure. */
1380 dev
->open
= &pcnet32_open
;
1381 dev
->hard_start_xmit
= &pcnet32_start_xmit
;
1382 dev
->stop
= &pcnet32_close
;
1383 dev
->get_stats
= &pcnet32_get_stats
;
1384 dev
->set_multicast_list
= &pcnet32_set_multicast_list
;
1385 dev
->do_ioctl
= &pcnet32_ioctl
;
1386 dev
->ethtool_ops
= &pcnet32_ethtool_ops
;
1387 dev
->tx_timeout
= pcnet32_tx_timeout
;
1388 dev
->watchdog_timeo
= (5 * HZ
);
1390 #ifdef CONFIG_NET_POLL_CONTROLLER
1391 dev
->poll_controller
= pcnet32_poll_controller
;
1394 /* Fill in the generic fields of the device structure. */
1395 if (register_netdev(dev
))
1399 pci_set_drvdata(pdev
, dev
);
1401 lp
->next
= pcnet32_dev
;
1405 if (pcnet32_debug
& NETIF_MSG_PROBE
)
1406 printk(KERN_INFO
"%s: registered as %s\n", dev
->name
, lp
->name
);
1409 /* enable LED writes */
1410 a
->write_bcr(ioaddr
, 2, a
->read_bcr(ioaddr
, 2) | 0x1000);
1415 pcnet32_free_ring(dev
);
1416 err_free_consistent
:
1417 pci_free_consistent(lp
->pci_dev
, sizeof(*lp
), lp
, lp
->dma_addr
);
1421 release_region(ioaddr
, PCNET32_TOTAL_SIZE
);
1425 /* if any allocation fails, caller must also call pcnet32_free_ring */
1426 static int pcnet32_alloc_ring(struct net_device
*dev
, char *name
)
1428 struct pcnet32_private
*lp
= dev
->priv
;
1430 lp
->tx_ring
= pci_alloc_consistent(lp
->pci_dev
,
1431 sizeof(struct pcnet32_tx_head
) *
1433 &lp
->tx_ring_dma_addr
);
1434 if (lp
->tx_ring
== NULL
) {
1435 if (netif_msg_drv(lp
))
1436 printk("\n" KERN_ERR PFX
1437 "%s: Consistent memory allocation failed.\n",
1442 lp
->rx_ring
= pci_alloc_consistent(lp
->pci_dev
,
1443 sizeof(struct pcnet32_rx_head
) *
1445 &lp
->rx_ring_dma_addr
);
1446 if (lp
->rx_ring
== NULL
) {
1447 if (netif_msg_drv(lp
))
1448 printk("\n" KERN_ERR PFX
1449 "%s: Consistent memory allocation failed.\n",
1454 lp
->tx_dma_addr
= kcalloc(lp
->tx_ring_size
, sizeof(dma_addr_t
),
1456 if (!lp
->tx_dma_addr
) {
1457 if (netif_msg_drv(lp
))
1458 printk("\n" KERN_ERR PFX
1459 "%s: Memory allocation failed.\n", name
);
1463 lp
->rx_dma_addr
= kcalloc(lp
->rx_ring_size
, sizeof(dma_addr_t
),
1465 if (!lp
->rx_dma_addr
) {
1466 if (netif_msg_drv(lp
))
1467 printk("\n" KERN_ERR PFX
1468 "%s: Memory allocation failed.\n", name
);
1472 lp
->tx_skbuff
= kcalloc(lp
->tx_ring_size
, sizeof(struct sk_buff
*),
1474 if (!lp
->tx_skbuff
) {
1475 if (netif_msg_drv(lp
))
1476 printk("\n" KERN_ERR PFX
1477 "%s: Memory allocation failed.\n", name
);
1481 lp
->rx_skbuff
= kcalloc(lp
->rx_ring_size
, sizeof(struct sk_buff
*),
1483 if (!lp
->rx_skbuff
) {
1484 if (netif_msg_drv(lp
))
1485 printk("\n" KERN_ERR PFX
1486 "%s: Memory allocation failed.\n", name
);
1493 static void pcnet32_free_ring(struct net_device
*dev
)
1495 struct pcnet32_private
*lp
= dev
->priv
;
1497 kfree(lp
->tx_skbuff
);
1498 lp
->tx_skbuff
= NULL
;
1500 kfree(lp
->rx_skbuff
);
1501 lp
->rx_skbuff
= NULL
;
1503 kfree(lp
->tx_dma_addr
);
1504 lp
->tx_dma_addr
= NULL
;
1506 kfree(lp
->rx_dma_addr
);
1507 lp
->rx_dma_addr
= NULL
;
1510 pci_free_consistent(lp
->pci_dev
,
1511 sizeof(struct pcnet32_tx_head
) *
1512 lp
->tx_ring_size
, lp
->tx_ring
,
1513 lp
->tx_ring_dma_addr
);
1518 pci_free_consistent(lp
->pci_dev
,
1519 sizeof(struct pcnet32_rx_head
) *
1520 lp
->rx_ring_size
, lp
->rx_ring
,
1521 lp
->rx_ring_dma_addr
);
1526 static int pcnet32_open(struct net_device
*dev
)
1528 struct pcnet32_private
*lp
= dev
->priv
;
1529 unsigned long ioaddr
= dev
->base_addr
;
1533 unsigned long flags
;
1535 if (request_irq(dev
->irq
, &pcnet32_interrupt
,
1536 lp
->shared_irq
? IRQF_SHARED
: 0, dev
->name
,
1541 spin_lock_irqsave(&lp
->lock
, flags
);
1542 /* Check for a valid station address */
1543 if (!is_valid_ether_addr(dev
->dev_addr
)) {
1548 /* Reset the PCNET32 */
1549 lp
->a
.reset(ioaddr
);
1551 /* switch pcnet32 to 32bit mode */
1552 lp
->a
.write_bcr(ioaddr
, 20, 2);
1554 if (netif_msg_ifup(lp
))
1556 "%s: pcnet32_open() irq %d tx/rx rings %#x/%#x init %#x.\n",
1557 dev
->name
, dev
->irq
, (u32
) (lp
->tx_ring_dma_addr
),
1558 (u32
) (lp
->rx_ring_dma_addr
),
1559 (u32
) (lp
->dma_addr
+
1560 offsetof(struct pcnet32_private
, init_block
)));
1562 /* set/reset autoselect bit */
1563 val
= lp
->a
.read_bcr(ioaddr
, 2) & ~2;
1564 if (lp
->options
& PCNET32_PORT_ASEL
)
1566 lp
->a
.write_bcr(ioaddr
, 2, val
);
1568 /* handle full duplex setting */
1569 if (lp
->mii_if
.full_duplex
) {
1570 val
= lp
->a
.read_bcr(ioaddr
, 9) & ~3;
1571 if (lp
->options
& PCNET32_PORT_FD
) {
1573 if (lp
->options
== (PCNET32_PORT_FD
| PCNET32_PORT_AUI
))
1575 } else if (lp
->options
& PCNET32_PORT_ASEL
) {
1576 /* workaround of xSeries250, turn on for 79C975 only */
1577 i
= ((lp
->a
.read_csr(ioaddr
, 88) |
1579 read_csr(ioaddr
, 89) << 16)) >> 12) & 0xffff;
1583 lp
->a
.write_bcr(ioaddr
, 9, val
);
1586 /* set/reset GPSI bit in test register */
1587 val
= lp
->a
.read_csr(ioaddr
, 124) & ~0x10;
1588 if ((lp
->options
& PCNET32_PORT_PORTSEL
) == PCNET32_PORT_GPSI
)
1590 lp
->a
.write_csr(ioaddr
, 124, val
);
1592 /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */
1593 if (lp
->pci_dev
->subsystem_vendor
== PCI_VENDOR_ID_AT
&&
1594 (lp
->pci_dev
->subsystem_device
== PCI_SUBDEVICE_ID_AT_2700FX
||
1595 lp
->pci_dev
->subsystem_device
== PCI_SUBDEVICE_ID_AT_2701FX
)) {
1596 if (lp
->options
& PCNET32_PORT_ASEL
) {
1597 lp
->options
= PCNET32_PORT_FD
| PCNET32_PORT_100
;
1598 if (netif_msg_link(lp
))
1600 "%s: Setting 100Mb-Full Duplex.\n",
1604 if (lp
->phycount
< 2) {
1606 * 24 Jun 2004 according AMD, in order to change the PHY,
1607 * DANAS (or DISPM for 79C976) must be set; then select the speed,
1608 * duplex, and/or enable auto negotiation, and clear DANAS
1610 if (lp
->mii
&& !(lp
->options
& PCNET32_PORT_ASEL
)) {
1611 lp
->a
.write_bcr(ioaddr
, 32,
1612 lp
->a
.read_bcr(ioaddr
, 32) | 0x0080);
1613 /* disable Auto Negotiation, set 10Mpbs, HD */
1614 val
= lp
->a
.read_bcr(ioaddr
, 32) & ~0xb8;
1615 if (lp
->options
& PCNET32_PORT_FD
)
1617 if (lp
->options
& PCNET32_PORT_100
)
1619 lp
->a
.write_bcr(ioaddr
, 32, val
);
1621 if (lp
->options
& PCNET32_PORT_ASEL
) {
1622 lp
->a
.write_bcr(ioaddr
, 32,
1623 lp
->a
.read_bcr(ioaddr
,
1625 /* enable auto negotiate, setup, disable fd */
1626 val
= lp
->a
.read_bcr(ioaddr
, 32) & ~0x98;
1628 lp
->a
.write_bcr(ioaddr
, 32, val
);
1635 struct ethtool_cmd ecmd
;
1638 * There is really no good other way to handle multiple PHYs
1639 * other than turning off all automatics
1641 val
= lp
->a
.read_bcr(ioaddr
, 2);
1642 lp
->a
.write_bcr(ioaddr
, 2, val
& ~2);
1643 val
= lp
->a
.read_bcr(ioaddr
, 32);
1644 lp
->a
.write_bcr(ioaddr
, 32, val
& ~(1 << 7)); /* stop MII manager */
1646 if (!(lp
->options
& PCNET32_PORT_ASEL
)) {
1648 ecmd
.port
= PORT_MII
;
1649 ecmd
.transceiver
= XCVR_INTERNAL
;
1650 ecmd
.autoneg
= AUTONEG_DISABLE
;
1653 options
& PCNET32_PORT_100
? SPEED_100
: SPEED_10
;
1654 bcr9
= lp
->a
.read_bcr(ioaddr
, 9);
1656 if (lp
->options
& PCNET32_PORT_FD
) {
1657 ecmd
.duplex
= DUPLEX_FULL
;
1660 ecmd
.duplex
= DUPLEX_HALF
;
1663 lp
->a
.write_bcr(ioaddr
, 9, bcr9
);
1666 for (i
= 0; i
< PCNET32_MAX_PHYS
; i
++) {
1667 if (lp
->phymask
& (1 << i
)) {
1668 /* isolate all but the first PHY */
1669 bmcr
= mdio_read(dev
, i
, MII_BMCR
);
1670 if (first_phy
== -1) {
1672 mdio_write(dev
, i
, MII_BMCR
,
1673 bmcr
& ~BMCR_ISOLATE
);
1675 mdio_write(dev
, i
, MII_BMCR
,
1676 bmcr
| BMCR_ISOLATE
);
1678 /* use mii_ethtool_sset to setup PHY */
1679 lp
->mii_if
.phy_id
= i
;
1680 ecmd
.phy_address
= i
;
1681 if (lp
->options
& PCNET32_PORT_ASEL
) {
1682 mii_ethtool_gset(&lp
->mii_if
, &ecmd
);
1683 ecmd
.autoneg
= AUTONEG_ENABLE
;
1685 mii_ethtool_sset(&lp
->mii_if
, &ecmd
);
1688 lp
->mii_if
.phy_id
= first_phy
;
1689 if (netif_msg_link(lp
))
1690 printk(KERN_INFO
"%s: Using PHY number %d.\n",
1691 dev
->name
, first_phy
);
1695 if (lp
->dxsuflo
) { /* Disable transmit stop on underflow */
1696 val
= lp
->a
.read_csr(ioaddr
, 3);
1698 lp
->a
.write_csr(ioaddr
, 3, val
);
1702 lp
->init_block
.mode
=
1703 le16_to_cpu((lp
->options
& PCNET32_PORT_PORTSEL
) << 7);
1704 pcnet32_load_multicast(dev
);
1706 if (pcnet32_init_ring(dev
)) {
1711 /* Re-initialize the PCNET32, and start it when done. */
1712 lp
->a
.write_csr(ioaddr
, 1, (lp
->dma_addr
+
1713 offsetof(struct pcnet32_private
,
1714 init_block
)) & 0xffff);
1715 lp
->a
.write_csr(ioaddr
, 2,
1717 offsetof(struct pcnet32_private
, init_block
)) >> 16);
1719 lp
->a
.write_csr(ioaddr
, 4, 0x0915);
1720 lp
->a
.write_csr(ioaddr
, 0, 0x0001);
1722 netif_start_queue(dev
);
1724 /* Print the link status and start the watchdog */
1725 pcnet32_check_media(dev
, 1);
1726 mod_timer(&(lp
->watchdog_timer
), PCNET32_WATCHDOG_TIMEOUT
);
1730 if (lp
->a
.read_csr(ioaddr
, 0) & 0x0100)
1733 * We used to clear the InitDone bit, 0x0100, here but Mark Stockton
1734 * reports that doing so triggers a bug in the '974.
1736 lp
->a
.write_csr(ioaddr
, 0, 0x0042);
1738 if (netif_msg_ifup(lp
))
1740 "%s: pcnet32 open after %d ticks, init block %#x csr0 %4.4x.\n",
1742 (u32
) (lp
->dma_addr
+
1743 offsetof(struct pcnet32_private
, init_block
)),
1744 lp
->a
.read_csr(ioaddr
, 0));
1746 spin_unlock_irqrestore(&lp
->lock
, flags
);
1748 return 0; /* Always succeed */
1751 /* free any allocated skbuffs */
1752 for (i
= 0; i
< lp
->rx_ring_size
; i
++) {
1753 lp
->rx_ring
[i
].status
= 0;
1754 if (lp
->rx_skbuff
[i
]) {
1755 pci_unmap_single(lp
->pci_dev
, lp
->rx_dma_addr
[i
],
1756 PKT_BUF_SZ
- 2, PCI_DMA_FROMDEVICE
);
1757 dev_kfree_skb(lp
->rx_skbuff
[i
]);
1759 lp
->rx_skbuff
[i
] = NULL
;
1760 lp
->rx_dma_addr
[i
] = 0;
1764 * Switch back to 16bit mode to avoid problems with dumb
1765 * DOS packet driver after a warm reboot
1767 lp
->a
.write_bcr(ioaddr
, 20, 4);
1770 spin_unlock_irqrestore(&lp
->lock
, flags
);
1771 free_irq(dev
->irq
, dev
);
1776 * The LANCE has been halted for one reason or another (busmaster memory
1777 * arbitration error, Tx FIFO underflow, driver stopped it to reconfigure,
1778 * etc.). Modern LANCE variants always reload their ring-buffer
1779 * configuration when restarted, so we must reinitialize our ring
1780 * context before restarting. As part of this reinitialization,
1781 * find all packets still on the Tx ring and pretend that they had been
1782 * sent (in effect, drop the packets on the floor) - the higher-level
1783 * protocols will time out and retransmit. It'd be better to shuffle
1784 * these skbs to a temp list and then actually re-Tx them after
1785 * restarting the chip, but I'm too lazy to do so right now. dplatt@3do.com
1788 static void pcnet32_purge_tx_ring(struct net_device
*dev
)
1790 struct pcnet32_private
*lp
= dev
->priv
;
1793 for (i
= 0; i
< lp
->tx_ring_size
; i
++) {
1794 lp
->tx_ring
[i
].status
= 0; /* CPU owns buffer */
1795 wmb(); /* Make sure adapter sees owner change */
1796 if (lp
->tx_skbuff
[i
]) {
1797 pci_unmap_single(lp
->pci_dev
, lp
->tx_dma_addr
[i
],
1798 lp
->tx_skbuff
[i
]->len
,
1800 dev_kfree_skb_any(lp
->tx_skbuff
[i
]);
1802 lp
->tx_skbuff
[i
] = NULL
;
1803 lp
->tx_dma_addr
[i
] = 0;
1807 /* Initialize the PCNET32 Rx and Tx rings. */
1808 static int pcnet32_init_ring(struct net_device
*dev
)
1810 struct pcnet32_private
*lp
= dev
->priv
;
1814 lp
->cur_rx
= lp
->cur_tx
= 0;
1815 lp
->dirty_rx
= lp
->dirty_tx
= 0;
1817 for (i
= 0; i
< lp
->rx_ring_size
; i
++) {
1818 struct sk_buff
*rx_skbuff
= lp
->rx_skbuff
[i
];
1819 if (rx_skbuff
== NULL
) {
1821 (rx_skbuff
= lp
->rx_skbuff
[i
] =
1822 dev_alloc_skb(PKT_BUF_SZ
))) {
1823 /* there is not much, we can do at this point */
1824 if (pcnet32_debug
& NETIF_MSG_DRV
)
1826 "%s: pcnet32_init_ring dev_alloc_skb failed.\n",
1830 skb_reserve(rx_skbuff
, 2);
1834 if (lp
->rx_dma_addr
[i
] == 0)
1835 lp
->rx_dma_addr
[i
] =
1836 pci_map_single(lp
->pci_dev
, rx_skbuff
->data
,
1837 PKT_BUF_SZ
- 2, PCI_DMA_FROMDEVICE
);
1838 lp
->rx_ring
[i
].base
= (u32
) le32_to_cpu(lp
->rx_dma_addr
[i
]);
1839 lp
->rx_ring
[i
].buf_length
= le16_to_cpu(2 - PKT_BUF_SZ
);
1840 wmb(); /* Make sure owner changes after all others are visible */
1841 lp
->rx_ring
[i
].status
= le16_to_cpu(0x8000);
1843 /* The Tx buffer address is filled in as needed, but we do need to clear
1844 * the upper ownership bit. */
1845 for (i
= 0; i
< lp
->tx_ring_size
; i
++) {
1846 lp
->tx_ring
[i
].status
= 0; /* CPU owns buffer */
1847 wmb(); /* Make sure adapter sees owner change */
1848 lp
->tx_ring
[i
].base
= 0;
1849 lp
->tx_dma_addr
[i
] = 0;
1852 lp
->init_block
.tlen_rlen
=
1853 le16_to_cpu(lp
->tx_len_bits
| lp
->rx_len_bits
);
1854 for (i
= 0; i
< 6; i
++)
1855 lp
->init_block
.phys_addr
[i
] = dev
->dev_addr
[i
];
1856 lp
->init_block
.rx_ring
= (u32
) le32_to_cpu(lp
->rx_ring_dma_addr
);
1857 lp
->init_block
.tx_ring
= (u32
) le32_to_cpu(lp
->tx_ring_dma_addr
);
1858 wmb(); /* Make sure all changes are visible */
1862 /* the pcnet32 has been issued a stop or reset. Wait for the stop bit
1863 * then flush the pending transmit operations, re-initialize the ring,
1864 * and tell the chip to initialize.
1866 static void pcnet32_restart(struct net_device
*dev
, unsigned int csr0_bits
)
1868 struct pcnet32_private
*lp
= dev
->priv
;
1869 unsigned long ioaddr
= dev
->base_addr
;
1873 for (i
= 0; i
< 100; i
++)
1874 if (lp
->a
.read_csr(ioaddr
, 0) & 0x0004)
1877 if (i
>= 100 && netif_msg_drv(lp
))
1879 "%s: pcnet32_restart timed out waiting for stop.\n",
1882 pcnet32_purge_tx_ring(dev
);
1883 if (pcnet32_init_ring(dev
))
1887 lp
->a
.write_csr(ioaddr
, 0, 1);
1890 if (lp
->a
.read_csr(ioaddr
, 0) & 0x0100)
1893 lp
->a
.write_csr(ioaddr
, 0, csr0_bits
);
1896 static void pcnet32_tx_timeout(struct net_device
*dev
)
1898 struct pcnet32_private
*lp
= dev
->priv
;
1899 unsigned long ioaddr
= dev
->base_addr
, flags
;
1901 spin_lock_irqsave(&lp
->lock
, flags
);
1902 /* Transmitter timeout, serious problems. */
1903 if (pcnet32_debug
& NETIF_MSG_DRV
)
1905 "%s: transmit timed out, status %4.4x, resetting.\n",
1906 dev
->name
, lp
->a
.read_csr(ioaddr
, 0));
1907 lp
->a
.write_csr(ioaddr
, 0, 0x0004);
1908 lp
->stats
.tx_errors
++;
1909 if (netif_msg_tx_err(lp
)) {
1912 " Ring data dump: dirty_tx %d cur_tx %d%s cur_rx %d.",
1913 lp
->dirty_tx
, lp
->cur_tx
, lp
->tx_full
? " (full)" : "",
1915 for (i
= 0; i
< lp
->rx_ring_size
; i
++)
1916 printk("%s %08x %04x %08x %04x", i
& 1 ? "" : "\n ",
1917 le32_to_cpu(lp
->rx_ring
[i
].base
),
1918 (-le16_to_cpu(lp
->rx_ring
[i
].buf_length
)) &
1919 0xffff, le32_to_cpu(lp
->rx_ring
[i
].msg_length
),
1920 le16_to_cpu(lp
->rx_ring
[i
].status
));
1921 for (i
= 0; i
< lp
->tx_ring_size
; i
++)
1922 printk("%s %08x %04x %08x %04x", i
& 1 ? "" : "\n ",
1923 le32_to_cpu(lp
->tx_ring
[i
].base
),
1924 (-le16_to_cpu(lp
->tx_ring
[i
].length
)) & 0xffff,
1925 le32_to_cpu(lp
->tx_ring
[i
].misc
),
1926 le16_to_cpu(lp
->tx_ring
[i
].status
));
1929 pcnet32_restart(dev
, 0x0042);
1931 dev
->trans_start
= jiffies
;
1932 netif_wake_queue(dev
);
1934 spin_unlock_irqrestore(&lp
->lock
, flags
);
1937 static int pcnet32_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
1939 struct pcnet32_private
*lp
= dev
->priv
;
1940 unsigned long ioaddr
= dev
->base_addr
;
1943 unsigned long flags
;
1945 spin_lock_irqsave(&lp
->lock
, flags
);
1947 if (netif_msg_tx_queued(lp
)) {
1949 "%s: pcnet32_start_xmit() called, csr0 %4.4x.\n",
1950 dev
->name
, lp
->a
.read_csr(ioaddr
, 0));
1953 /* Default status -- will not enable Successful-TxDone
1954 * interrupt when that option is available to us.
1958 /* Fill in a Tx ring entry */
1960 /* Mask to ring buffer boundary. */
1961 entry
= lp
->cur_tx
& lp
->tx_mod_mask
;
1963 /* Caution: the write order is important here, set the status
1964 * with the "ownership" bits last. */
1966 lp
->tx_ring
[entry
].length
= le16_to_cpu(-skb
->len
);
1968 lp
->tx_ring
[entry
].misc
= 0x00000000;
1970 lp
->tx_skbuff
[entry
] = skb
;
1971 lp
->tx_dma_addr
[entry
] =
1972 pci_map_single(lp
->pci_dev
, skb
->data
, skb
->len
, PCI_DMA_TODEVICE
);
1973 lp
->tx_ring
[entry
].base
= (u32
) le32_to_cpu(lp
->tx_dma_addr
[entry
]);
1974 wmb(); /* Make sure owner changes after all others are visible */
1975 lp
->tx_ring
[entry
].status
= le16_to_cpu(status
);
1978 lp
->stats
.tx_bytes
+= skb
->len
;
1980 /* Trigger an immediate send poll. */
1981 lp
->a
.write_csr(ioaddr
, 0, 0x0048);
1983 dev
->trans_start
= jiffies
;
1985 if (lp
->tx_ring
[(entry
+ 1) & lp
->tx_mod_mask
].base
!= 0) {
1987 netif_stop_queue(dev
);
1989 spin_unlock_irqrestore(&lp
->lock
, flags
);
1993 /* The PCNET32 interrupt handler. */
1995 pcnet32_interrupt(int irq
, void *dev_id
, struct pt_regs
*regs
)
1997 struct net_device
*dev
= dev_id
;
1998 struct pcnet32_private
*lp
;
1999 unsigned long ioaddr
;
2001 int boguscnt
= max_interrupt_work
;
2005 if (pcnet32_debug
& NETIF_MSG_INTR
)
2006 printk(KERN_DEBUG
"%s(): irq %d for unknown device\n",
2011 ioaddr
= dev
->base_addr
;
2014 spin_lock(&lp
->lock
);
2016 rap
= lp
->a
.read_rap(ioaddr
);
2017 while ((csr0
= lp
->a
.read_csr(ioaddr
, 0)) & 0x8f00 && --boguscnt
>= 0) {
2018 if (csr0
== 0xffff) {
2019 break; /* PCMCIA remove happened */
2021 /* Acknowledge all of the current interrupt sources ASAP. */
2022 lp
->a
.write_csr(ioaddr
, 0, csr0
& ~0x004f);
2026 if (netif_msg_intr(lp
))
2028 "%s: interrupt csr0=%#2.2x new csr=%#2.2x.\n",
2029 dev
->name
, csr0
, lp
->a
.read_csr(ioaddr
, 0));
2031 if (csr0
& 0x0400) /* Rx interrupt */
2034 if (csr0
& 0x0200) { /* Tx-done interrupt */
2035 unsigned int dirty_tx
= lp
->dirty_tx
;
2038 while (dirty_tx
!= lp
->cur_tx
) {
2039 int entry
= dirty_tx
& lp
->tx_mod_mask
;
2041 (short)le16_to_cpu(lp
->tx_ring
[entry
].
2045 break; /* It still hasn't been Txed */
2047 lp
->tx_ring
[entry
].base
= 0;
2049 if (status
& 0x4000) {
2050 /* There was an major error, log it. */
2052 le32_to_cpu(lp
->tx_ring
[entry
].
2054 lp
->stats
.tx_errors
++;
2055 if (netif_msg_tx_err(lp
))
2057 "%s: Tx error status=%04x err_status=%08x\n",
2060 if (err_status
& 0x04000000)
2061 lp
->stats
.tx_aborted_errors
++;
2062 if (err_status
& 0x08000000)
2063 lp
->stats
.tx_carrier_errors
++;
2064 if (err_status
& 0x10000000)
2065 lp
->stats
.tx_window_errors
++;
2067 if (err_status
& 0x40000000) {
2068 lp
->stats
.tx_fifo_errors
++;
2069 /* Ackk! On FIFO errors the Tx unit is turned off! */
2070 /* Remove this verbosity later! */
2071 if (netif_msg_tx_err(lp
))
2073 "%s: Tx FIFO error! CSR0=%4.4x\n",
2078 if (err_status
& 0x40000000) {
2079 lp
->stats
.tx_fifo_errors
++;
2080 if (!lp
->dxsuflo
) { /* If controller doesn't recover ... */
2081 /* Ackk! On FIFO errors the Tx unit is turned off! */
2082 /* Remove this verbosity later! */
2083 if (netif_msg_tx_err
2086 "%s: Tx FIFO error! CSR0=%4.4x\n",
2095 if (status
& 0x1800)
2096 lp
->stats
.collisions
++;
2097 lp
->stats
.tx_packets
++;
2100 /* We must free the original skb */
2101 if (lp
->tx_skbuff
[entry
]) {
2102 pci_unmap_single(lp
->pci_dev
,
2103 lp
->tx_dma_addr
[entry
],
2104 lp
->tx_skbuff
[entry
]->
2105 len
, PCI_DMA_TODEVICE
);
2106 dev_kfree_skb_irq(lp
->tx_skbuff
[entry
]);
2107 lp
->tx_skbuff
[entry
] = NULL
;
2108 lp
->tx_dma_addr
[entry
] = 0;
2114 (lp
->cur_tx
- dirty_tx
) & (lp
->tx_mod_mask
+
2116 if (delta
> lp
->tx_ring_size
) {
2117 if (netif_msg_drv(lp
))
2119 "%s: out-of-sync dirty pointer, %d vs. %d, full=%d.\n",
2120 dev
->name
, dirty_tx
, lp
->cur_tx
,
2122 dirty_tx
+= lp
->tx_ring_size
;
2123 delta
-= lp
->tx_ring_size
;
2127 netif_queue_stopped(dev
) &&
2128 delta
< lp
->tx_ring_size
- 2) {
2129 /* The ring is no longer full, clear tbusy. */
2131 netif_wake_queue(dev
);
2133 lp
->dirty_tx
= dirty_tx
;
2136 /* Log misc errors. */
2138 lp
->stats
.tx_errors
++; /* Tx babble. */
2139 if (csr0
& 0x1000) {
2141 * this happens when our receive ring is full. This shouldn't
2142 * be a problem as we will see normal rx interrupts for the frames
2143 * in the receive ring. But there are some PCI chipsets (I can
2144 * reproduce this on SP3G with Intel saturn chipset) which have
2145 * sometimes problems and will fill up the receive ring with
2146 * error descriptors. In this situation we don't get a rx
2147 * interrupt, but a missed frame interrupt sooner or later.
2148 * So we try to clean up our receive ring here.
2151 lp
->stats
.rx_errors
++; /* Missed a Rx frame. */
2153 if (csr0
& 0x0800) {
2154 if (netif_msg_drv(lp
))
2156 "%s: Bus master arbitration failure, status %4.4x.\n",
2158 /* unlike for the lance, there is no restart needed */
2162 /* reset the chip to clear the error condition, then restart */
2163 lp
->a
.reset(ioaddr
);
2164 lp
->a
.write_csr(ioaddr
, 4, 0x0915);
2165 pcnet32_restart(dev
, 0x0002);
2166 netif_wake_queue(dev
);
2170 /* Set interrupt enable. */
2171 lp
->a
.write_csr(ioaddr
, 0, 0x0040);
2172 lp
->a
.write_rap(ioaddr
, rap
);
2174 if (netif_msg_intr(lp
))
2175 printk(KERN_DEBUG
"%s: exiting interrupt, csr0=%#4.4x.\n",
2176 dev
->name
, lp
->a
.read_csr(ioaddr
, 0));
2178 spin_unlock(&lp
->lock
);
2183 static int pcnet32_rx(struct net_device
*dev
)
2185 struct pcnet32_private
*lp
= dev
->priv
;
2186 int entry
= lp
->cur_rx
& lp
->rx_mod_mask
;
2187 int boguscnt
= lp
->rx_ring_size
/ 2;
2189 /* If we own the next entry, it's a new packet. Send it up. */
2190 while ((short)le16_to_cpu(lp
->rx_ring
[entry
].status
) >= 0) {
2191 int status
= (short)le16_to_cpu(lp
->rx_ring
[entry
].status
) >> 8;
2193 if (status
!= 0x03) { /* There was an error. */
2195 * There is a tricky error noted by John Murphy,
2196 * <murf@perftech.com> to Russ Nelson: Even with full-sized
2197 * buffers it's possible for a jabber packet to use two
2198 * buffers, with only the last correctly noting the error.
2200 if (status
& 0x01) /* Only count a general error at the */
2201 lp
->stats
.rx_errors
++; /* end of a packet. */
2203 lp
->stats
.rx_frame_errors
++;
2205 lp
->stats
.rx_over_errors
++;
2207 lp
->stats
.rx_crc_errors
++;
2209 lp
->stats
.rx_fifo_errors
++;
2210 lp
->rx_ring
[entry
].status
&= le16_to_cpu(0x03ff);
2212 /* Malloc up new buffer, compatible with net-2e. */
2214 (le32_to_cpu(lp
->rx_ring
[entry
].msg_length
) & 0xfff)
2216 struct sk_buff
*skb
;
2218 /* Discard oversize frames. */
2219 if (unlikely(pkt_len
> PKT_BUF_SZ
- 2)) {
2220 if (netif_msg_drv(lp
))
2222 "%s: Impossible packet size %d!\n",
2223 dev
->name
, pkt_len
);
2224 lp
->stats
.rx_errors
++;
2225 } else if (pkt_len
< 60) {
2226 if (netif_msg_rx_err(lp
))
2227 printk(KERN_ERR
"%s: Runt packet!\n",
2229 lp
->stats
.rx_errors
++;
2231 int rx_in_place
= 0;
2233 if (pkt_len
> rx_copybreak
) {
2234 struct sk_buff
*newskb
;
2237 dev_alloc_skb(PKT_BUF_SZ
))) {
2238 skb_reserve(newskb
, 2);
2239 skb
= lp
->rx_skbuff
[entry
];
2240 pci_unmap_single(lp
->pci_dev
,
2245 PCI_DMA_FROMDEVICE
);
2246 skb_put(skb
, pkt_len
);
2247 lp
->rx_skbuff
[entry
] = newskb
;
2249 lp
->rx_dma_addr
[entry
] =
2250 pci_map_single(lp
->pci_dev
,
2254 PCI_DMA_FROMDEVICE
);
2255 lp
->rx_ring
[entry
].base
=
2263 skb
= dev_alloc_skb(pkt_len
+ 2);
2268 if (netif_msg_drv(lp
))
2270 "%s: Memory squeeze, deferring packet.\n",
2272 for (i
= 0; i
< lp
->rx_ring_size
; i
++)
2282 if (i
> lp
->rx_ring_size
- 2) {
2283 lp
->stats
.rx_dropped
++;
2284 lp
->rx_ring
[entry
].status
|=
2285 le16_to_cpu(0x8000);
2286 wmb(); /* Make sure adapter sees owner change */
2293 skb_reserve(skb
, 2); /* 16 byte align */
2294 skb_put(skb
, pkt_len
); /* Make room */
2295 pci_dma_sync_single_for_cpu(lp
->pci_dev
,
2301 PCI_DMA_FROMDEVICE
);
2302 eth_copy_and_sum(skb
,
2303 (unsigned char *)(lp
->
2308 pci_dma_sync_single_for_device(lp
->
2315 PCI_DMA_FROMDEVICE
);
2317 lp
->stats
.rx_bytes
+= skb
->len
;
2318 skb
->protocol
= eth_type_trans(skb
, dev
);
2320 dev
->last_rx
= jiffies
;
2321 lp
->stats
.rx_packets
++;
2325 * The docs say that the buffer length isn't touched, but Andrew Boyd
2326 * of QNX reports that some revs of the 79C965 clear it.
2328 lp
->rx_ring
[entry
].buf_length
= le16_to_cpu(2 - PKT_BUF_SZ
);
2329 wmb(); /* Make sure owner changes after all others are visible */
2330 lp
->rx_ring
[entry
].status
|= le16_to_cpu(0x8000);
2331 entry
= (++lp
->cur_rx
) & lp
->rx_mod_mask
;
2332 if (--boguscnt
<= 0)
2333 break; /* don't stay in loop forever */
2339 static int pcnet32_close(struct net_device
*dev
)
2341 unsigned long ioaddr
= dev
->base_addr
;
2342 struct pcnet32_private
*lp
= dev
->priv
;
2344 unsigned long flags
;
2346 del_timer_sync(&lp
->watchdog_timer
);
2348 netif_stop_queue(dev
);
2350 spin_lock_irqsave(&lp
->lock
, flags
);
2352 lp
->stats
.rx_missed_errors
= lp
->a
.read_csr(ioaddr
, 112);
2354 if (netif_msg_ifdown(lp
))
2356 "%s: Shutting down ethercard, status was %2.2x.\n",
2357 dev
->name
, lp
->a
.read_csr(ioaddr
, 0));
2359 /* We stop the PCNET32 here -- it occasionally polls memory if we don't. */
2360 lp
->a
.write_csr(ioaddr
, 0, 0x0004);
2363 * Switch back to 16bit mode to avoid problems with dumb
2364 * DOS packet driver after a warm reboot
2366 lp
->a
.write_bcr(ioaddr
, 20, 4);
2368 spin_unlock_irqrestore(&lp
->lock
, flags
);
2370 free_irq(dev
->irq
, dev
);
2372 spin_lock_irqsave(&lp
->lock
, flags
);
2374 /* free all allocated skbuffs */
2375 for (i
= 0; i
< lp
->rx_ring_size
; i
++) {
2376 lp
->rx_ring
[i
].status
= 0;
2377 wmb(); /* Make sure adapter sees owner change */
2378 if (lp
->rx_skbuff
[i
]) {
2379 pci_unmap_single(lp
->pci_dev
, lp
->rx_dma_addr
[i
],
2380 PKT_BUF_SZ
- 2, PCI_DMA_FROMDEVICE
);
2381 dev_kfree_skb(lp
->rx_skbuff
[i
]);
2383 lp
->rx_skbuff
[i
] = NULL
;
2384 lp
->rx_dma_addr
[i
] = 0;
2387 for (i
= 0; i
< lp
->tx_ring_size
; i
++) {
2388 lp
->tx_ring
[i
].status
= 0; /* CPU owns buffer */
2389 wmb(); /* Make sure adapter sees owner change */
2390 if (lp
->tx_skbuff
[i
]) {
2391 pci_unmap_single(lp
->pci_dev
, lp
->tx_dma_addr
[i
],
2392 lp
->tx_skbuff
[i
]->len
,
2394 dev_kfree_skb(lp
->tx_skbuff
[i
]);
2396 lp
->tx_skbuff
[i
] = NULL
;
2397 lp
->tx_dma_addr
[i
] = 0;
2400 spin_unlock_irqrestore(&lp
->lock
, flags
);
2405 static struct net_device_stats
*pcnet32_get_stats(struct net_device
*dev
)
2407 struct pcnet32_private
*lp
= dev
->priv
;
2408 unsigned long ioaddr
= dev
->base_addr
;
2410 unsigned long flags
;
2412 spin_lock_irqsave(&lp
->lock
, flags
);
2413 saved_addr
= lp
->a
.read_rap(ioaddr
);
2414 lp
->stats
.rx_missed_errors
= lp
->a
.read_csr(ioaddr
, 112);
2415 lp
->a
.write_rap(ioaddr
, saved_addr
);
2416 spin_unlock_irqrestore(&lp
->lock
, flags
);
2421 /* taken from the sunlance driver, which it took from the depca driver */
2422 static void pcnet32_load_multicast(struct net_device
*dev
)
2424 struct pcnet32_private
*lp
= dev
->priv
;
2425 volatile struct pcnet32_init_block
*ib
= &lp
->init_block
;
2426 volatile u16
*mcast_table
= (u16
*) & ib
->filter
;
2427 struct dev_mc_list
*dmi
= dev
->mc_list
;
2432 /* set all multicast bits */
2433 if (dev
->flags
& IFF_ALLMULTI
) {
2434 ib
->filter
[0] = 0xffffffff;
2435 ib
->filter
[1] = 0xffffffff;
2438 /* clear the multicast filter */
2443 for (i
= 0; i
< dev
->mc_count
; i
++) {
2444 addrs
= dmi
->dmi_addr
;
2447 /* multicast address? */
2451 crc
= ether_crc_le(6, addrs
);
2453 mcast_table
[crc
>> 4] =
2454 le16_to_cpu(le16_to_cpu(mcast_table
[crc
>> 4]) |
2455 (1 << (crc
& 0xf)));
2461 * Set or clear the multicast filter for this adaptor.
2463 static void pcnet32_set_multicast_list(struct net_device
*dev
)
2465 unsigned long ioaddr
= dev
->base_addr
, flags
;
2466 struct pcnet32_private
*lp
= dev
->priv
;
2468 spin_lock_irqsave(&lp
->lock
, flags
);
2469 if (dev
->flags
& IFF_PROMISC
) {
2470 /* Log any net taps. */
2471 if (netif_msg_hw(lp
))
2472 printk(KERN_INFO
"%s: Promiscuous mode enabled.\n",
2474 lp
->init_block
.mode
=
2475 le16_to_cpu(0x8000 | (lp
->options
& PCNET32_PORT_PORTSEL
) <<
2478 lp
->init_block
.mode
=
2479 le16_to_cpu((lp
->options
& PCNET32_PORT_PORTSEL
) << 7);
2480 pcnet32_load_multicast(dev
);
2483 lp
->a
.write_csr(ioaddr
, 0, 0x0004); /* Temporarily stop the lance. */
2484 pcnet32_restart(dev
, 0x0042); /* Resume normal operation */
2485 netif_wake_queue(dev
);
2487 spin_unlock_irqrestore(&lp
->lock
, flags
);
2490 /* This routine assumes that the lp->lock is held */
2491 static int mdio_read(struct net_device
*dev
, int phy_id
, int reg_num
)
2493 struct pcnet32_private
*lp
= dev
->priv
;
2494 unsigned long ioaddr
= dev
->base_addr
;
2500 lp
->a
.write_bcr(ioaddr
, 33, ((phy_id
& 0x1f) << 5) | (reg_num
& 0x1f));
2501 val_out
= lp
->a
.read_bcr(ioaddr
, 34);
2506 /* This routine assumes that the lp->lock is held */
2507 static void mdio_write(struct net_device
*dev
, int phy_id
, int reg_num
, int val
)
2509 struct pcnet32_private
*lp
= dev
->priv
;
2510 unsigned long ioaddr
= dev
->base_addr
;
2515 lp
->a
.write_bcr(ioaddr
, 33, ((phy_id
& 0x1f) << 5) | (reg_num
& 0x1f));
2516 lp
->a
.write_bcr(ioaddr
, 34, val
);
2519 static int pcnet32_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
2521 struct pcnet32_private
*lp
= dev
->priv
;
2523 unsigned long flags
;
2525 /* SIOC[GS]MIIxxx ioctls */
2527 spin_lock_irqsave(&lp
->lock
, flags
);
2528 rc
= generic_mii_ioctl(&lp
->mii_if
, if_mii(rq
), cmd
, NULL
);
2529 spin_unlock_irqrestore(&lp
->lock
, flags
);
2537 static int pcnet32_check_otherphy(struct net_device
*dev
)
2539 struct pcnet32_private
*lp
= dev
->priv
;
2540 struct mii_if_info mii
= lp
->mii_if
;
2544 for (i
= 0; i
< PCNET32_MAX_PHYS
; i
++) {
2545 if (i
== lp
->mii_if
.phy_id
)
2546 continue; /* skip active phy */
2547 if (lp
->phymask
& (1 << i
)) {
2549 if (mii_link_ok(&mii
)) {
2550 /* found PHY with active link */
2551 if (netif_msg_link(lp
))
2553 "%s: Using PHY number %d.\n",
2556 /* isolate inactive phy */
2558 mdio_read(dev
, lp
->mii_if
.phy_id
, MII_BMCR
);
2559 mdio_write(dev
, lp
->mii_if
.phy_id
, MII_BMCR
,
2560 bmcr
| BMCR_ISOLATE
);
2562 /* de-isolate new phy */
2563 bmcr
= mdio_read(dev
, i
, MII_BMCR
);
2564 mdio_write(dev
, i
, MII_BMCR
,
2565 bmcr
& ~BMCR_ISOLATE
);
2567 /* set new phy address */
2568 lp
->mii_if
.phy_id
= i
;
2577 * Show the status of the media. Similar to mii_check_media however it
2578 * correctly shows the link speed for all (tested) pcnet32 variants.
2579 * Devices with no mii just report link state without speed.
2581 * Caller is assumed to hold and release the lp->lock.
2584 static void pcnet32_check_media(struct net_device
*dev
, int verbose
)
2586 struct pcnet32_private
*lp
= dev
->priv
;
2588 int prev_link
= netif_carrier_ok(dev
) ? 1 : 0;
2592 curr_link
= mii_link_ok(&lp
->mii_if
);
2594 ulong ioaddr
= dev
->base_addr
; /* card base I/O address */
2595 curr_link
= (lp
->a
.read_bcr(ioaddr
, 4) != 0xc0);
2598 if (prev_link
|| verbose
) {
2599 netif_carrier_off(dev
);
2600 if (netif_msg_link(lp
))
2601 printk(KERN_INFO
"%s: link down\n", dev
->name
);
2603 if (lp
->phycount
> 1) {
2604 curr_link
= pcnet32_check_otherphy(dev
);
2607 } else if (verbose
|| !prev_link
) {
2608 netif_carrier_on(dev
);
2610 if (netif_msg_link(lp
)) {
2611 struct ethtool_cmd ecmd
;
2612 mii_ethtool_gset(&lp
->mii_if
, &ecmd
);
2614 "%s: link up, %sMbps, %s-duplex\n",
2616 (ecmd
.speed
== SPEED_100
) ? "100" : "10",
2618 DUPLEX_FULL
) ? "full" : "half");
2620 bcr9
= lp
->a
.read_bcr(dev
->base_addr
, 9);
2621 if ((bcr9
& (1 << 0)) != lp
->mii_if
.full_duplex
) {
2622 if (lp
->mii_if
.full_duplex
)
2626 lp
->a
.write_bcr(dev
->base_addr
, 9, bcr9
);
2629 if (netif_msg_link(lp
))
2630 printk(KERN_INFO
"%s: link up\n", dev
->name
);
2636 * Check for loss of link and link establishment.
2637 * Can not use mii_check_media because it does nothing if mode is forced.
2640 static void pcnet32_watchdog(struct net_device
*dev
)
2642 struct pcnet32_private
*lp
= dev
->priv
;
2643 unsigned long flags
;
2645 /* Print the link status if it has changed */
2646 spin_lock_irqsave(&lp
->lock
, flags
);
2647 pcnet32_check_media(dev
, 0);
2648 spin_unlock_irqrestore(&lp
->lock
, flags
);
2650 mod_timer(&(lp
->watchdog_timer
), PCNET32_WATCHDOG_TIMEOUT
);
2653 static void __devexit
pcnet32_remove_one(struct pci_dev
*pdev
)
2655 struct net_device
*dev
= pci_get_drvdata(pdev
);
2658 struct pcnet32_private
*lp
= dev
->priv
;
2660 unregister_netdev(dev
);
2661 pcnet32_free_ring(dev
);
2662 release_region(dev
->base_addr
, PCNET32_TOTAL_SIZE
);
2663 pci_free_consistent(lp
->pci_dev
, sizeof(*lp
), lp
, lp
->dma_addr
);
2665 pci_disable_device(pdev
);
2666 pci_set_drvdata(pdev
, NULL
);
2670 static struct pci_driver pcnet32_driver
= {
2672 .probe
= pcnet32_probe_pci
,
2673 .remove
= __devexit_p(pcnet32_remove_one
),
2674 .id_table
= pcnet32_pci_tbl
,
2677 /* An additional parameter that may be passed in... */
2678 static int debug
= -1;
2679 static int tx_start_pt
= -1;
2680 static int pcnet32_have_pci
;
2682 module_param(debug
, int, 0);
2683 MODULE_PARM_DESC(debug
, DRV_NAME
" debug level");
2684 module_param(max_interrupt_work
, int, 0);
2685 MODULE_PARM_DESC(max_interrupt_work
,
2686 DRV_NAME
" maximum events handled per interrupt");
2687 module_param(rx_copybreak
, int, 0);
2688 MODULE_PARM_DESC(rx_copybreak
,
2689 DRV_NAME
" copy breakpoint for copy-only-tiny-frames");
2690 module_param(tx_start_pt
, int, 0);
2691 MODULE_PARM_DESC(tx_start_pt
, DRV_NAME
" transmit start point (0-3)");
2692 module_param(pcnet32vlb
, int, 0);
2693 MODULE_PARM_DESC(pcnet32vlb
, DRV_NAME
" Vesa local bus (VLB) support (0/1)");
2694 module_param_array(options
, int, NULL
, 0);
2695 MODULE_PARM_DESC(options
, DRV_NAME
" initial option setting(s) (0-15)");
2696 module_param_array(full_duplex
, int, NULL
, 0);
2697 MODULE_PARM_DESC(full_duplex
, DRV_NAME
" full duplex setting(s) (1)");
2698 /* Module Parameter for HomePNA cards added by Patrick Simmons, 2004 */
2699 module_param_array(homepna
, int, NULL
, 0);
2700 MODULE_PARM_DESC(homepna
,
2702 " mode for 79C978 cards (1 for HomePNA, 0 for Ethernet, default Ethernet");
2704 MODULE_AUTHOR("Thomas Bogendoerfer");
2705 MODULE_DESCRIPTION("Driver for PCnet32 and PCnetPCI based ethercards");
2706 MODULE_LICENSE("GPL");
2708 #define PCNET32_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
2710 static int __init
pcnet32_init_module(void)
2712 printk(KERN_INFO
"%s", version
);
2714 pcnet32_debug
= netif_msg_init(debug
, PCNET32_MSG_DEFAULT
);
2716 if ((tx_start_pt
>= 0) && (tx_start_pt
<= 3))
2717 tx_start
= tx_start_pt
;
2719 /* find the PCI devices */
2720 if (!pci_module_init(&pcnet32_driver
))
2721 pcnet32_have_pci
= 1;
2723 /* should we find any remaining VLbus devices ? */
2725 pcnet32_probe_vlbus(pcnet32_portlist
);
2727 if (cards_found
&& (pcnet32_debug
& NETIF_MSG_PROBE
))
2728 printk(KERN_INFO PFX
"%d cards_found.\n", cards_found
);
2730 return (pcnet32_have_pci
+ cards_found
) ? 0 : -ENODEV
;
2733 static void __exit
pcnet32_cleanup_module(void)
2735 struct net_device
*next_dev
;
2737 while (pcnet32_dev
) {
2738 struct pcnet32_private
*lp
= pcnet32_dev
->priv
;
2739 next_dev
= lp
->next
;
2740 unregister_netdev(pcnet32_dev
);
2741 pcnet32_free_ring(pcnet32_dev
);
2742 release_region(pcnet32_dev
->base_addr
, PCNET32_TOTAL_SIZE
);
2743 pci_free_consistent(lp
->pci_dev
, sizeof(*lp
), lp
, lp
->dma_addr
);
2744 free_netdev(pcnet32_dev
);
2745 pcnet32_dev
= next_dev
;
2748 if (pcnet32_have_pci
)
2749 pci_unregister_driver(&pcnet32_driver
);
2752 module_init(pcnet32_init_module
);
2753 module_exit(pcnet32_cleanup_module
);