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1da177e4 LT |
1 | /* de2104x.c: A Linux PCI Ethernet driver for Intel/Digital 21040/1 chips. */ |
2 | /* | |
3 | Copyright 2001,2003 Jeff Garzik <jgarzik@pobox.com> | |
4 | ||
5 | Copyright 1994, 1995 Digital Equipment Corporation. [de4x5.c] | |
6 | Written/copyright 1994-2001 by Donald Becker. [tulip.c] | |
7 | ||
8 | This software may be used and distributed according to the terms of | |
9 | the GNU General Public License (GPL), incorporated herein by reference. | |
10 | Drivers based on or derived from this code fall under the GPL and must | |
11 | retain the authorship, copyright and license notice. This file is not | |
12 | a complete program and may only be used when the entire operating | |
13 | system is licensed under the GPL. | |
14 | ||
15 | See the file COPYING in this distribution for more information. | |
16 | ||
17 | TODO, in rough priority order: | |
18 | * Support forcing media type with a module parameter, | |
19 | like dl2k.c/sundance.c | |
20 | * Constants (module parms?) for Rx work limit | |
21 | * Complete reset on PciErr | |
22 | * Jumbo frames / dev->change_mtu | |
23 | * Adjust Rx FIFO threshold and Max Rx DMA burst on Rx FIFO error | |
24 | * Adjust Tx FIFO threshold and Max Tx DMA burst on Tx FIFO error | |
25 | * Implement Tx software interrupt mitigation via | |
26 | Tx descriptor bit | |
27 | ||
28 | */ | |
29 | ||
30 | #define DRV_NAME "de2104x" | |
31 | #define DRV_VERSION "0.7" | |
32 | #define DRV_RELDATE "Mar 17, 2004" | |
33 | ||
1da177e4 LT |
34 | #include <linux/module.h> |
35 | #include <linux/kernel.h> | |
36 | #include <linux/netdevice.h> | |
37 | #include <linux/etherdevice.h> | |
38 | #include <linux/init.h> | |
39 | #include <linux/pci.h> | |
40 | #include <linux/delay.h> | |
41 | #include <linux/ethtool.h> | |
42 | #include <linux/compiler.h> | |
43 | #include <linux/rtnetlink.h> | |
44 | #include <linux/crc32.h> | |
45 | ||
46 | #include <asm/io.h> | |
47 | #include <asm/irq.h> | |
48 | #include <asm/uaccess.h> | |
49 | #include <asm/unaligned.h> | |
50 | ||
51 | /* These identify the driver base version and may not be removed. */ | |
52 | static char version[] = | |
53 | KERN_INFO DRV_NAME " PCI Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")\n"; | |
54 | ||
55 | MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>"); | |
56 | MODULE_DESCRIPTION("Intel/Digital 21040/1 series PCI Ethernet driver"); | |
57 | MODULE_LICENSE("GPL"); | |
58 | MODULE_VERSION(DRV_VERSION); | |
59 | ||
60 | static int debug = -1; | |
61 | module_param (debug, int, 0); | |
62 | MODULE_PARM_DESC (debug, "de2104x bitmapped message enable number"); | |
63 | ||
64 | /* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */ | |
65 | #if defined(__alpha__) || defined(__arm__) || defined(__hppa__) \ | |
66 | || defined(__sparc_) || defined(__ia64__) \ | |
67 | || defined(__sh__) || defined(__mips__) | |
68 | static int rx_copybreak = 1518; | |
69 | #else | |
70 | static int rx_copybreak = 100; | |
71 | #endif | |
72 | module_param (rx_copybreak, int, 0); | |
73 | MODULE_PARM_DESC (rx_copybreak, "de2104x Breakpoint at which Rx packets are copied"); | |
74 | ||
75 | #define PFX DRV_NAME ": " | |
76 | ||
77 | #define DE_DEF_MSG_ENABLE (NETIF_MSG_DRV | \ | |
78 | NETIF_MSG_PROBE | \ | |
79 | NETIF_MSG_LINK | \ | |
80 | NETIF_MSG_IFDOWN | \ | |
81 | NETIF_MSG_IFUP | \ | |
82 | NETIF_MSG_RX_ERR | \ | |
83 | NETIF_MSG_TX_ERR) | |
84 | ||
85 | #define DE_RX_RING_SIZE 64 | |
86 | #define DE_TX_RING_SIZE 64 | |
87 | #define DE_RING_BYTES \ | |
88 | ((sizeof(struct de_desc) * DE_RX_RING_SIZE) + \ | |
89 | (sizeof(struct de_desc) * DE_TX_RING_SIZE)) | |
90 | #define NEXT_TX(N) (((N) + 1) & (DE_TX_RING_SIZE - 1)) | |
91 | #define NEXT_RX(N) (((N) + 1) & (DE_RX_RING_SIZE - 1)) | |
92 | #define TX_BUFFS_AVAIL(CP) \ | |
93 | (((CP)->tx_tail <= (CP)->tx_head) ? \ | |
94 | (CP)->tx_tail + (DE_TX_RING_SIZE - 1) - (CP)->tx_head : \ | |
95 | (CP)->tx_tail - (CP)->tx_head - 1) | |
96 | ||
97 | #define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/ | |
98 | #define RX_OFFSET 2 | |
99 | ||
100 | #define DE_SETUP_SKB ((struct sk_buff *) 1) | |
101 | #define DE_DUMMY_SKB ((struct sk_buff *) 2) | |
102 | #define DE_SETUP_FRAME_WORDS 96 | |
103 | #define DE_EEPROM_WORDS 256 | |
104 | #define DE_EEPROM_SIZE (DE_EEPROM_WORDS * sizeof(u16)) | |
105 | #define DE_MAX_MEDIA 5 | |
106 | ||
107 | #define DE_MEDIA_TP_AUTO 0 | |
108 | #define DE_MEDIA_BNC 1 | |
109 | #define DE_MEDIA_AUI 2 | |
110 | #define DE_MEDIA_TP 3 | |
111 | #define DE_MEDIA_TP_FD 4 | |
112 | #define DE_MEDIA_INVALID DE_MAX_MEDIA | |
113 | #define DE_MEDIA_FIRST 0 | |
114 | #define DE_MEDIA_LAST (DE_MAX_MEDIA - 1) | |
115 | #define DE_AUI_BNC (SUPPORTED_AUI | SUPPORTED_BNC) | |
116 | ||
117 | #define DE_TIMER_LINK (60 * HZ) | |
118 | #define DE_TIMER_NO_LINK (5 * HZ) | |
119 | ||
120 | #define DE_NUM_REGS 16 | |
121 | #define DE_REGS_SIZE (DE_NUM_REGS * sizeof(u32)) | |
122 | #define DE_REGS_VER 1 | |
123 | ||
124 | /* Time in jiffies before concluding the transmitter is hung. */ | |
125 | #define TX_TIMEOUT (6*HZ) | |
126 | ||
127 | #define DE_UNALIGNED_16(a) (u16)(get_unaligned((u16 *)(a))) | |
128 | ||
129 | /* This is a mysterious value that can be written to CSR11 in the 21040 (only) | |
130 | to support a pre-NWay full-duplex signaling mechanism using short frames. | |
131 | No one knows what it should be, but if left at its default value some | |
132 | 10base2(!) packets trigger a full-duplex-request interrupt. */ | |
133 | #define FULL_DUPLEX_MAGIC 0x6969 | |
134 | ||
135 | enum { | |
136 | /* NIC registers */ | |
137 | BusMode = 0x00, | |
138 | TxPoll = 0x08, | |
139 | RxPoll = 0x10, | |
140 | RxRingAddr = 0x18, | |
141 | TxRingAddr = 0x20, | |
142 | MacStatus = 0x28, | |
143 | MacMode = 0x30, | |
144 | IntrMask = 0x38, | |
145 | RxMissed = 0x40, | |
146 | ROMCmd = 0x48, | |
147 | CSR11 = 0x58, | |
148 | SIAStatus = 0x60, | |
149 | CSR13 = 0x68, | |
150 | CSR14 = 0x70, | |
151 | CSR15 = 0x78, | |
152 | PCIPM = 0x40, | |
153 | ||
154 | /* BusMode bits */ | |
155 | CmdReset = (1 << 0), | |
156 | CacheAlign16 = 0x00008000, | |
157 | BurstLen4 = 0x00000400, | |
158 | ||
159 | /* Rx/TxPoll bits */ | |
160 | NormalTxPoll = (1 << 0), | |
161 | NormalRxPoll = (1 << 0), | |
162 | ||
163 | /* Tx/Rx descriptor status bits */ | |
164 | DescOwn = (1 << 31), | |
165 | RxError = (1 << 15), | |
166 | RxErrLong = (1 << 7), | |
167 | RxErrCRC = (1 << 1), | |
168 | RxErrFIFO = (1 << 0), | |
169 | RxErrRunt = (1 << 11), | |
170 | RxErrFrame = (1 << 14), | |
171 | RingEnd = (1 << 25), | |
172 | FirstFrag = (1 << 29), | |
173 | LastFrag = (1 << 30), | |
174 | TxError = (1 << 15), | |
175 | TxFIFOUnder = (1 << 1), | |
176 | TxLinkFail = (1 << 2) | (1 << 10) | (1 << 11), | |
177 | TxMaxCol = (1 << 8), | |
178 | TxOWC = (1 << 9), | |
179 | TxJabber = (1 << 14), | |
180 | SetupFrame = (1 << 27), | |
181 | TxSwInt = (1 << 31), | |
182 | ||
183 | /* MacStatus bits */ | |
184 | IntrOK = (1 << 16), | |
185 | IntrErr = (1 << 15), | |
186 | RxIntr = (1 << 6), | |
187 | RxEmpty = (1 << 7), | |
188 | TxIntr = (1 << 0), | |
189 | TxEmpty = (1 << 2), | |
190 | PciErr = (1 << 13), | |
191 | TxState = (1 << 22) | (1 << 21) | (1 << 20), | |
192 | RxState = (1 << 19) | (1 << 18) | (1 << 17), | |
193 | LinkFail = (1 << 12), | |
194 | LinkPass = (1 << 4), | |
195 | RxStopped = (1 << 8), | |
196 | TxStopped = (1 << 1), | |
197 | ||
198 | /* MacMode bits */ | |
199 | TxEnable = (1 << 13), | |
200 | RxEnable = (1 << 1), | |
201 | RxTx = TxEnable | RxEnable, | |
202 | FullDuplex = (1 << 9), | |
203 | AcceptAllMulticast = (1 << 7), | |
204 | AcceptAllPhys = (1 << 6), | |
205 | BOCnt = (1 << 5), | |
206 | MacModeClear = (1<<12) | (1<<11) | (1<<10) | (1<<8) | (1<<3) | | |
207 | RxTx | BOCnt | AcceptAllPhys | AcceptAllMulticast, | |
208 | ||
209 | /* ROMCmd bits */ | |
210 | EE_SHIFT_CLK = 0x02, /* EEPROM shift clock. */ | |
211 | EE_CS = 0x01, /* EEPROM chip select. */ | |
212 | EE_DATA_WRITE = 0x04, /* Data from the Tulip to EEPROM. */ | |
213 | EE_WRITE_0 = 0x01, | |
214 | EE_WRITE_1 = 0x05, | |
215 | EE_DATA_READ = 0x08, /* Data from the EEPROM chip. */ | |
216 | EE_ENB = (0x4800 | EE_CS), | |
217 | ||
218 | /* The EEPROM commands include the alway-set leading bit. */ | |
219 | EE_READ_CMD = 6, | |
220 | ||
221 | /* RxMissed bits */ | |
222 | RxMissedOver = (1 << 16), | |
223 | RxMissedMask = 0xffff, | |
224 | ||
225 | /* SROM-related bits */ | |
226 | SROMC0InfoLeaf = 27, | |
227 | MediaBlockMask = 0x3f, | |
228 | MediaCustomCSRs = (1 << 6), | |
f3b197ac | 229 | |
1da177e4 LT |
230 | /* PCIPM bits */ |
231 | PM_Sleep = (1 << 31), | |
232 | PM_Snooze = (1 << 30), | |
233 | PM_Mask = PM_Sleep | PM_Snooze, | |
f3b197ac | 234 | |
1da177e4 LT |
235 | /* SIAStatus bits */ |
236 | NWayState = (1 << 14) | (1 << 13) | (1 << 12), | |
237 | NWayRestart = (1 << 12), | |
238 | NonselPortActive = (1 << 9), | |
239 | LinkFailStatus = (1 << 2), | |
240 | NetCxnErr = (1 << 1), | |
241 | }; | |
242 | ||
243 | static const u32 de_intr_mask = | |
244 | IntrOK | IntrErr | RxIntr | RxEmpty | TxIntr | TxEmpty | | |
245 | LinkPass | LinkFail | PciErr; | |
246 | ||
247 | /* | |
248 | * Set the programmable burst length to 4 longwords for all: | |
249 | * DMA errors result without these values. Cache align 16 long. | |
250 | */ | |
251 | static const u32 de_bus_mode = CacheAlign16 | BurstLen4; | |
252 | ||
253 | struct de_srom_media_block { | |
254 | u8 opts; | |
255 | u16 csr13; | |
256 | u16 csr14; | |
257 | u16 csr15; | |
258 | } __attribute__((packed)); | |
259 | ||
260 | struct de_srom_info_leaf { | |
261 | u16 default_media; | |
262 | u8 n_blocks; | |
263 | u8 unused; | |
264 | } __attribute__((packed)); | |
265 | ||
266 | struct de_desc { | |
267 | u32 opts1; | |
268 | u32 opts2; | |
269 | u32 addr1; | |
270 | u32 addr2; | |
271 | }; | |
272 | ||
273 | struct media_info { | |
274 | u16 type; /* DE_MEDIA_xxx */ | |
275 | u16 csr13; | |
276 | u16 csr14; | |
277 | u16 csr15; | |
278 | }; | |
279 | ||
280 | struct ring_info { | |
281 | struct sk_buff *skb; | |
282 | dma_addr_t mapping; | |
283 | }; | |
284 | ||
285 | struct de_private { | |
286 | unsigned tx_head; | |
287 | unsigned tx_tail; | |
288 | unsigned rx_tail; | |
289 | ||
290 | void __iomem *regs; | |
291 | struct net_device *dev; | |
292 | spinlock_t lock; | |
293 | ||
294 | struct de_desc *rx_ring; | |
295 | struct de_desc *tx_ring; | |
296 | struct ring_info tx_skb[DE_TX_RING_SIZE]; | |
297 | struct ring_info rx_skb[DE_RX_RING_SIZE]; | |
298 | unsigned rx_buf_sz; | |
299 | dma_addr_t ring_dma; | |
300 | ||
301 | u32 msg_enable; | |
302 | ||
303 | struct net_device_stats net_stats; | |
304 | ||
305 | struct pci_dev *pdev; | |
306 | ||
307 | u16 setup_frame[DE_SETUP_FRAME_WORDS]; | |
308 | ||
309 | u32 media_type; | |
310 | u32 media_supported; | |
311 | u32 media_advertise; | |
312 | struct media_info media[DE_MAX_MEDIA]; | |
313 | struct timer_list media_timer; | |
314 | ||
315 | u8 *ee_data; | |
316 | unsigned board_idx; | |
317 | unsigned de21040 : 1; | |
318 | unsigned media_lock : 1; | |
319 | }; | |
320 | ||
321 | ||
322 | static void de_set_rx_mode (struct net_device *dev); | |
323 | static void de_tx (struct de_private *de); | |
324 | static void de_clean_rings (struct de_private *de); | |
325 | static void de_media_interrupt (struct de_private *de, u32 status); | |
326 | static void de21040_media_timer (unsigned long data); | |
327 | static void de21041_media_timer (unsigned long data); | |
328 | static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media); | |
329 | ||
330 | ||
331 | static struct pci_device_id de_pci_tbl[] = { | |
332 | { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP, | |
333 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
334 | { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_PLUS, | |
335 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 }, | |
336 | { }, | |
337 | }; | |
338 | MODULE_DEVICE_TABLE(pci, de_pci_tbl); | |
339 | ||
340 | static const char * const media_name[DE_MAX_MEDIA] = { | |
341 | "10baseT auto", | |
342 | "BNC", | |
343 | "AUI", | |
344 | "10baseT-HD", | |
345 | "10baseT-FD" | |
346 | }; | |
347 | ||
348 | /* 21040 transceiver register settings: | |
349 | * TP AUTO(unused), BNC(unused), AUI, TP, TP FD*/ | |
350 | static u16 t21040_csr13[] = { 0, 0, 0x8F09, 0x8F01, 0x8F01, }; | |
351 | static u16 t21040_csr14[] = { 0, 0, 0x0705, 0xFFFF, 0xFFFD, }; | |
352 | static u16 t21040_csr15[] = { 0, 0, 0x0006, 0x0000, 0x0000, }; | |
353 | ||
354 | /* 21041 transceiver register settings: TP AUTO, BNC, AUI, TP, TP FD*/ | |
355 | static u16 t21041_csr13[] = { 0xEF01, 0xEF09, 0xEF09, 0xEF01, 0xEF09, }; | |
356 | static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x6F3F, 0x6F3D, }; | |
357 | static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, }; | |
358 | ||
359 | ||
360 | #define dr32(reg) readl(de->regs + (reg)) | |
361 | #define dw32(reg,val) writel((val), de->regs + (reg)) | |
362 | ||
363 | ||
364 | static void de_rx_err_acct (struct de_private *de, unsigned rx_tail, | |
365 | u32 status, u32 len) | |
366 | { | |
367 | if (netif_msg_rx_err (de)) | |
368 | printk (KERN_DEBUG | |
369 | "%s: rx err, slot %d status 0x%x len %d\n", | |
370 | de->dev->name, rx_tail, status, len); | |
371 | ||
372 | if ((status & 0x38000300) != 0x0300) { | |
373 | /* Ingore earlier buffers. */ | |
374 | if ((status & 0xffff) != 0x7fff) { | |
375 | if (netif_msg_rx_err(de)) | |
376 | printk(KERN_WARNING "%s: Oversized Ethernet frame " | |
377 | "spanned multiple buffers, status %8.8x!\n", | |
378 | de->dev->name, status); | |
379 | de->net_stats.rx_length_errors++; | |
380 | } | |
381 | } else if (status & RxError) { | |
382 | /* There was a fatal error. */ | |
383 | de->net_stats.rx_errors++; /* end of a packet.*/ | |
384 | if (status & 0x0890) de->net_stats.rx_length_errors++; | |
385 | if (status & RxErrCRC) de->net_stats.rx_crc_errors++; | |
386 | if (status & RxErrFIFO) de->net_stats.rx_fifo_errors++; | |
387 | } | |
388 | } | |
389 | ||
390 | static void de_rx (struct de_private *de) | |
391 | { | |
392 | unsigned rx_tail = de->rx_tail; | |
393 | unsigned rx_work = DE_RX_RING_SIZE; | |
394 | unsigned drop = 0; | |
395 | int rc; | |
396 | ||
397 | while (rx_work--) { | |
398 | u32 status, len; | |
399 | dma_addr_t mapping; | |
400 | struct sk_buff *skb, *copy_skb; | |
401 | unsigned copying_skb, buflen; | |
402 | ||
403 | skb = de->rx_skb[rx_tail].skb; | |
7e0b58f3 | 404 | BUG_ON(!skb); |
1da177e4 LT |
405 | rmb(); |
406 | status = le32_to_cpu(de->rx_ring[rx_tail].opts1); | |
407 | if (status & DescOwn) | |
408 | break; | |
409 | ||
410 | len = ((status >> 16) & 0x7ff) - 4; | |
411 | mapping = de->rx_skb[rx_tail].mapping; | |
412 | ||
413 | if (unlikely(drop)) { | |
414 | de->net_stats.rx_dropped++; | |
415 | goto rx_next; | |
416 | } | |
417 | ||
418 | if (unlikely((status & 0x38008300) != 0x0300)) { | |
419 | de_rx_err_acct(de, rx_tail, status, len); | |
420 | goto rx_next; | |
421 | } | |
422 | ||
423 | copying_skb = (len <= rx_copybreak); | |
424 | ||
425 | if (unlikely(netif_msg_rx_status(de))) | |
426 | printk(KERN_DEBUG "%s: rx slot %d status 0x%x len %d copying? %d\n", | |
427 | de->dev->name, rx_tail, status, len, | |
428 | copying_skb); | |
429 | ||
430 | buflen = copying_skb ? (len + RX_OFFSET) : de->rx_buf_sz; | |
431 | copy_skb = dev_alloc_skb (buflen); | |
432 | if (unlikely(!copy_skb)) { | |
433 | de->net_stats.rx_dropped++; | |
434 | drop = 1; | |
435 | rx_work = 100; | |
436 | goto rx_next; | |
437 | } | |
438 | copy_skb->dev = de->dev; | |
439 | ||
440 | if (!copying_skb) { | |
441 | pci_unmap_single(de->pdev, mapping, | |
442 | buflen, PCI_DMA_FROMDEVICE); | |
443 | skb_put(skb, len); | |
444 | ||
445 | mapping = | |
446 | de->rx_skb[rx_tail].mapping = | |
689be439 | 447 | pci_map_single(de->pdev, copy_skb->data, |
1da177e4 LT |
448 | buflen, PCI_DMA_FROMDEVICE); |
449 | de->rx_skb[rx_tail].skb = copy_skb; | |
450 | } else { | |
451 | pci_dma_sync_single_for_cpu(de->pdev, mapping, len, PCI_DMA_FROMDEVICE); | |
452 | skb_reserve(copy_skb, RX_OFFSET); | |
689be439 | 453 | memcpy(skb_put(copy_skb, len), skb->data, len); |
1da177e4 LT |
454 | |
455 | pci_dma_sync_single_for_device(de->pdev, mapping, len, PCI_DMA_FROMDEVICE); | |
456 | ||
457 | /* We'll reuse the original ring buffer. */ | |
458 | skb = copy_skb; | |
459 | } | |
460 | ||
461 | skb->protocol = eth_type_trans (skb, de->dev); | |
462 | ||
463 | de->net_stats.rx_packets++; | |
464 | de->net_stats.rx_bytes += skb->len; | |
465 | de->dev->last_rx = jiffies; | |
466 | rc = netif_rx (skb); | |
467 | if (rc == NET_RX_DROP) | |
468 | drop = 1; | |
469 | ||
470 | rx_next: | |
471 | de->rx_ring[rx_tail].opts1 = cpu_to_le32(DescOwn); | |
472 | if (rx_tail == (DE_RX_RING_SIZE - 1)) | |
473 | de->rx_ring[rx_tail].opts2 = | |
474 | cpu_to_le32(RingEnd | de->rx_buf_sz); | |
475 | else | |
476 | de->rx_ring[rx_tail].opts2 = cpu_to_le32(de->rx_buf_sz); | |
477 | de->rx_ring[rx_tail].addr1 = cpu_to_le32(mapping); | |
478 | rx_tail = NEXT_RX(rx_tail); | |
479 | } | |
480 | ||
481 | if (!rx_work) | |
482 | printk(KERN_WARNING "%s: rx work limit reached\n", de->dev->name); | |
483 | ||
484 | de->rx_tail = rx_tail; | |
485 | } | |
486 | ||
487 | static irqreturn_t de_interrupt (int irq, void *dev_instance, struct pt_regs *regs) | |
488 | { | |
489 | struct net_device *dev = dev_instance; | |
490 | struct de_private *de = dev->priv; | |
491 | u32 status; | |
492 | ||
493 | status = dr32(MacStatus); | |
494 | if ((!(status & (IntrOK|IntrErr))) || (status == 0xFFFF)) | |
495 | return IRQ_NONE; | |
496 | ||
497 | if (netif_msg_intr(de)) | |
498 | printk(KERN_DEBUG "%s: intr, status %08x mode %08x desc %u/%u/%u\n", | |
499 | dev->name, status, dr32(MacMode), de->rx_tail, de->tx_head, de->tx_tail); | |
500 | ||
501 | dw32(MacStatus, status); | |
502 | ||
503 | if (status & (RxIntr | RxEmpty)) { | |
504 | de_rx(de); | |
505 | if (status & RxEmpty) | |
506 | dw32(RxPoll, NormalRxPoll); | |
507 | } | |
508 | ||
509 | spin_lock(&de->lock); | |
510 | ||
511 | if (status & (TxIntr | TxEmpty)) | |
512 | de_tx(de); | |
513 | ||
514 | if (status & (LinkPass | LinkFail)) | |
515 | de_media_interrupt(de, status); | |
516 | ||
517 | spin_unlock(&de->lock); | |
518 | ||
519 | if (status & PciErr) { | |
520 | u16 pci_status; | |
521 | ||
522 | pci_read_config_word(de->pdev, PCI_STATUS, &pci_status); | |
523 | pci_write_config_word(de->pdev, PCI_STATUS, pci_status); | |
524 | printk(KERN_ERR "%s: PCI bus error, status=%08x, PCI status=%04x\n", | |
525 | dev->name, status, pci_status); | |
526 | } | |
527 | ||
528 | return IRQ_HANDLED; | |
529 | } | |
530 | ||
531 | static void de_tx (struct de_private *de) | |
532 | { | |
533 | unsigned tx_head = de->tx_head; | |
534 | unsigned tx_tail = de->tx_tail; | |
535 | ||
536 | while (tx_tail != tx_head) { | |
537 | struct sk_buff *skb; | |
538 | u32 status; | |
539 | ||
540 | rmb(); | |
541 | status = le32_to_cpu(de->tx_ring[tx_tail].opts1); | |
542 | if (status & DescOwn) | |
543 | break; | |
544 | ||
545 | skb = de->tx_skb[tx_tail].skb; | |
7e0b58f3 | 546 | BUG_ON(!skb); |
1da177e4 LT |
547 | if (unlikely(skb == DE_DUMMY_SKB)) |
548 | goto next; | |
549 | ||
550 | if (unlikely(skb == DE_SETUP_SKB)) { | |
551 | pci_unmap_single(de->pdev, de->tx_skb[tx_tail].mapping, | |
552 | sizeof(de->setup_frame), PCI_DMA_TODEVICE); | |
553 | goto next; | |
554 | } | |
555 | ||
556 | pci_unmap_single(de->pdev, de->tx_skb[tx_tail].mapping, | |
557 | skb->len, PCI_DMA_TODEVICE); | |
558 | ||
559 | if (status & LastFrag) { | |
560 | if (status & TxError) { | |
561 | if (netif_msg_tx_err(de)) | |
562 | printk(KERN_DEBUG "%s: tx err, status 0x%x\n", | |
563 | de->dev->name, status); | |
564 | de->net_stats.tx_errors++; | |
565 | if (status & TxOWC) | |
566 | de->net_stats.tx_window_errors++; | |
567 | if (status & TxMaxCol) | |
568 | de->net_stats.tx_aborted_errors++; | |
569 | if (status & TxLinkFail) | |
570 | de->net_stats.tx_carrier_errors++; | |
571 | if (status & TxFIFOUnder) | |
572 | de->net_stats.tx_fifo_errors++; | |
573 | } else { | |
574 | de->net_stats.tx_packets++; | |
575 | de->net_stats.tx_bytes += skb->len; | |
576 | if (netif_msg_tx_done(de)) | |
577 | printk(KERN_DEBUG "%s: tx done, slot %d\n", de->dev->name, tx_tail); | |
578 | } | |
579 | dev_kfree_skb_irq(skb); | |
580 | } | |
581 | ||
582 | next: | |
583 | de->tx_skb[tx_tail].skb = NULL; | |
584 | ||
585 | tx_tail = NEXT_TX(tx_tail); | |
586 | } | |
587 | ||
588 | de->tx_tail = tx_tail; | |
589 | ||
590 | if (netif_queue_stopped(de->dev) && (TX_BUFFS_AVAIL(de) > (DE_TX_RING_SIZE / 4))) | |
591 | netif_wake_queue(de->dev); | |
592 | } | |
593 | ||
594 | static int de_start_xmit (struct sk_buff *skb, struct net_device *dev) | |
595 | { | |
596 | struct de_private *de = dev->priv; | |
597 | unsigned int entry, tx_free; | |
598 | u32 mapping, len, flags = FirstFrag | LastFrag; | |
599 | struct de_desc *txd; | |
600 | ||
601 | spin_lock_irq(&de->lock); | |
602 | ||
603 | tx_free = TX_BUFFS_AVAIL(de); | |
604 | if (tx_free == 0) { | |
605 | netif_stop_queue(dev); | |
606 | spin_unlock_irq(&de->lock); | |
607 | return 1; | |
608 | } | |
609 | tx_free--; | |
610 | ||
611 | entry = de->tx_head; | |
612 | ||
613 | txd = &de->tx_ring[entry]; | |
614 | ||
615 | len = skb->len; | |
616 | mapping = pci_map_single(de->pdev, skb->data, len, PCI_DMA_TODEVICE); | |
617 | if (entry == (DE_TX_RING_SIZE - 1)) | |
618 | flags |= RingEnd; | |
619 | if (!tx_free || (tx_free == (DE_TX_RING_SIZE / 2))) | |
620 | flags |= TxSwInt; | |
621 | flags |= len; | |
622 | txd->opts2 = cpu_to_le32(flags); | |
623 | txd->addr1 = cpu_to_le32(mapping); | |
624 | ||
625 | de->tx_skb[entry].skb = skb; | |
626 | de->tx_skb[entry].mapping = mapping; | |
627 | wmb(); | |
628 | ||
629 | txd->opts1 = cpu_to_le32(DescOwn); | |
630 | wmb(); | |
631 | ||
632 | de->tx_head = NEXT_TX(entry); | |
633 | if (netif_msg_tx_queued(de)) | |
634 | printk(KERN_DEBUG "%s: tx queued, slot %d, skblen %d\n", | |
635 | dev->name, entry, skb->len); | |
636 | ||
637 | if (tx_free == 0) | |
638 | netif_stop_queue(dev); | |
639 | ||
640 | spin_unlock_irq(&de->lock); | |
641 | ||
642 | /* Trigger an immediate transmit demand. */ | |
643 | dw32(TxPoll, NormalTxPoll); | |
644 | dev->trans_start = jiffies; | |
645 | ||
646 | return 0; | |
647 | } | |
648 | ||
649 | /* Set or clear the multicast filter for this adaptor. | |
650 | Note that we only use exclusion around actually queueing the | |
651 | new frame, not around filling de->setup_frame. This is non-deterministic | |
652 | when re-entered but still correct. */ | |
653 | ||
654 | #undef set_bit_le | |
655 | #define set_bit_le(i,p) do { ((char *)(p))[(i)/8] |= (1<<((i)%8)); } while(0) | |
656 | ||
657 | static void build_setup_frame_hash(u16 *setup_frm, struct net_device *dev) | |
658 | { | |
659 | struct de_private *de = dev->priv; | |
660 | u16 hash_table[32]; | |
661 | struct dev_mc_list *mclist; | |
662 | int i; | |
663 | u16 *eaddrs; | |
664 | ||
665 | memset(hash_table, 0, sizeof(hash_table)); | |
666 | set_bit_le(255, hash_table); /* Broadcast entry */ | |
667 | /* This should work on big-endian machines as well. */ | |
668 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; | |
669 | i++, mclist = mclist->next) { | |
670 | int index = ether_crc_le(ETH_ALEN, mclist->dmi_addr) & 0x1ff; | |
671 | ||
672 | set_bit_le(index, hash_table); | |
673 | ||
674 | for (i = 0; i < 32; i++) { | |
675 | *setup_frm++ = hash_table[i]; | |
676 | *setup_frm++ = hash_table[i]; | |
677 | } | |
678 | setup_frm = &de->setup_frame[13*6]; | |
679 | } | |
680 | ||
681 | /* Fill the final entry with our physical address. */ | |
682 | eaddrs = (u16 *)dev->dev_addr; | |
683 | *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0]; | |
684 | *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1]; | |
685 | *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2]; | |
686 | } | |
687 | ||
688 | static void build_setup_frame_perfect(u16 *setup_frm, struct net_device *dev) | |
689 | { | |
690 | struct de_private *de = dev->priv; | |
691 | struct dev_mc_list *mclist; | |
692 | int i; | |
693 | u16 *eaddrs; | |
694 | ||
695 | /* We have <= 14 addresses so we can use the wonderful | |
696 | 16 address perfect filtering of the Tulip. */ | |
697 | for (i = 0, mclist = dev->mc_list; i < dev->mc_count; | |
698 | i++, mclist = mclist->next) { | |
699 | eaddrs = (u16 *)mclist->dmi_addr; | |
700 | *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; | |
701 | *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; | |
702 | *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; | |
703 | } | |
704 | /* Fill the unused entries with the broadcast address. */ | |
705 | memset(setup_frm, 0xff, (15-i)*12); | |
706 | setup_frm = &de->setup_frame[15*6]; | |
707 | ||
708 | /* Fill the final entry with our physical address. */ | |
709 | eaddrs = (u16 *)dev->dev_addr; | |
710 | *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0]; | |
711 | *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1]; | |
712 | *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2]; | |
713 | } | |
714 | ||
715 | ||
716 | static void __de_set_rx_mode (struct net_device *dev) | |
717 | { | |
718 | struct de_private *de = dev->priv; | |
719 | u32 macmode; | |
720 | unsigned int entry; | |
721 | u32 mapping; | |
722 | struct de_desc *txd; | |
723 | struct de_desc *dummy_txd = NULL; | |
724 | ||
725 | macmode = dr32(MacMode) & ~(AcceptAllMulticast | AcceptAllPhys); | |
726 | ||
727 | if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ | |
728 | macmode |= AcceptAllMulticast | AcceptAllPhys; | |
729 | goto out; | |
730 | } | |
731 | ||
732 | if ((dev->mc_count > 1000) || (dev->flags & IFF_ALLMULTI)) { | |
733 | /* Too many to filter well -- accept all multicasts. */ | |
734 | macmode |= AcceptAllMulticast; | |
735 | goto out; | |
736 | } | |
737 | ||
738 | /* Note that only the low-address shortword of setup_frame is valid! | |
739 | The values are doubled for big-endian architectures. */ | |
740 | if (dev->mc_count > 14) /* Must use a multicast hash table. */ | |
741 | build_setup_frame_hash (de->setup_frame, dev); | |
742 | else | |
743 | build_setup_frame_perfect (de->setup_frame, dev); | |
744 | ||
745 | /* | |
746 | * Now add this frame to the Tx list. | |
747 | */ | |
748 | ||
749 | entry = de->tx_head; | |
750 | ||
751 | /* Avoid a chip errata by prefixing a dummy entry. */ | |
752 | if (entry != 0) { | |
753 | de->tx_skb[entry].skb = DE_DUMMY_SKB; | |
754 | ||
755 | dummy_txd = &de->tx_ring[entry]; | |
756 | dummy_txd->opts2 = (entry == (DE_TX_RING_SIZE - 1)) ? | |
757 | cpu_to_le32(RingEnd) : 0; | |
758 | dummy_txd->addr1 = 0; | |
759 | ||
760 | /* Must set DescOwned later to avoid race with chip */ | |
761 | ||
762 | entry = NEXT_TX(entry); | |
763 | } | |
764 | ||
765 | de->tx_skb[entry].skb = DE_SETUP_SKB; | |
766 | de->tx_skb[entry].mapping = mapping = | |
767 | pci_map_single (de->pdev, de->setup_frame, | |
768 | sizeof (de->setup_frame), PCI_DMA_TODEVICE); | |
769 | ||
770 | /* Put the setup frame on the Tx list. */ | |
771 | txd = &de->tx_ring[entry]; | |
772 | if (entry == (DE_TX_RING_SIZE - 1)) | |
773 | txd->opts2 = cpu_to_le32(SetupFrame | RingEnd | sizeof (de->setup_frame)); | |
774 | else | |
775 | txd->opts2 = cpu_to_le32(SetupFrame | sizeof (de->setup_frame)); | |
776 | txd->addr1 = cpu_to_le32(mapping); | |
777 | wmb(); | |
778 | ||
779 | txd->opts1 = cpu_to_le32(DescOwn); | |
780 | wmb(); | |
781 | ||
782 | if (dummy_txd) { | |
783 | dummy_txd->opts1 = cpu_to_le32(DescOwn); | |
784 | wmb(); | |
785 | } | |
786 | ||
787 | de->tx_head = NEXT_TX(entry); | |
788 | ||
7e0b58f3 | 789 | BUG_ON(TX_BUFFS_AVAIL(de) < 0); |
1da177e4 LT |
790 | if (TX_BUFFS_AVAIL(de) == 0) |
791 | netif_stop_queue(dev); | |
792 | ||
793 | /* Trigger an immediate transmit demand. */ | |
794 | dw32(TxPoll, NormalTxPoll); | |
795 | ||
796 | out: | |
797 | if (macmode != dr32(MacMode)) | |
798 | dw32(MacMode, macmode); | |
799 | } | |
800 | ||
801 | static void de_set_rx_mode (struct net_device *dev) | |
802 | { | |
803 | unsigned long flags; | |
804 | struct de_private *de = dev->priv; | |
805 | ||
806 | spin_lock_irqsave (&de->lock, flags); | |
807 | __de_set_rx_mode(dev); | |
808 | spin_unlock_irqrestore (&de->lock, flags); | |
809 | } | |
810 | ||
811 | static inline void de_rx_missed(struct de_private *de, u32 rx_missed) | |
812 | { | |
813 | if (unlikely(rx_missed & RxMissedOver)) | |
814 | de->net_stats.rx_missed_errors += RxMissedMask; | |
815 | else | |
816 | de->net_stats.rx_missed_errors += (rx_missed & RxMissedMask); | |
817 | } | |
818 | ||
819 | static void __de_get_stats(struct de_private *de) | |
820 | { | |
821 | u32 tmp = dr32(RxMissed); /* self-clearing */ | |
822 | ||
823 | de_rx_missed(de, tmp); | |
824 | } | |
825 | ||
826 | static struct net_device_stats *de_get_stats(struct net_device *dev) | |
827 | { | |
828 | struct de_private *de = dev->priv; | |
829 | ||
830 | /* The chip only need report frame silently dropped. */ | |
831 | spin_lock_irq(&de->lock); | |
832 | if (netif_running(dev) && netif_device_present(dev)) | |
833 | __de_get_stats(de); | |
834 | spin_unlock_irq(&de->lock); | |
835 | ||
836 | return &de->net_stats; | |
837 | } | |
838 | ||
839 | static inline int de_is_running (struct de_private *de) | |
840 | { | |
841 | return (dr32(MacStatus) & (RxState | TxState)) ? 1 : 0; | |
842 | } | |
843 | ||
844 | static void de_stop_rxtx (struct de_private *de) | |
845 | { | |
846 | u32 macmode; | |
847 | unsigned int work = 1000; | |
848 | ||
849 | macmode = dr32(MacMode); | |
850 | if (macmode & RxTx) { | |
851 | dw32(MacMode, macmode & ~RxTx); | |
852 | dr32(MacMode); | |
853 | } | |
854 | ||
855 | while (--work > 0) { | |
856 | if (!de_is_running(de)) | |
857 | return; | |
858 | cpu_relax(); | |
859 | } | |
f3b197ac | 860 | |
1da177e4 LT |
861 | printk(KERN_WARNING "%s: timeout expired stopping DMA\n", de->dev->name); |
862 | } | |
863 | ||
864 | static inline void de_start_rxtx (struct de_private *de) | |
865 | { | |
866 | u32 macmode; | |
867 | ||
868 | macmode = dr32(MacMode); | |
869 | if ((macmode & RxTx) != RxTx) { | |
870 | dw32(MacMode, macmode | RxTx); | |
871 | dr32(MacMode); | |
872 | } | |
873 | } | |
874 | ||
875 | static void de_stop_hw (struct de_private *de) | |
876 | { | |
877 | ||
878 | udelay(5); | |
879 | dw32(IntrMask, 0); | |
880 | ||
881 | de_stop_rxtx(de); | |
882 | ||
883 | dw32(MacStatus, dr32(MacStatus)); | |
884 | ||
885 | udelay(10); | |
886 | ||
887 | de->rx_tail = 0; | |
888 | de->tx_head = de->tx_tail = 0; | |
889 | } | |
890 | ||
891 | static void de_link_up(struct de_private *de) | |
892 | { | |
893 | if (!netif_carrier_ok(de->dev)) { | |
894 | netif_carrier_on(de->dev); | |
895 | if (netif_msg_link(de)) | |
896 | printk(KERN_INFO "%s: link up, media %s\n", | |
897 | de->dev->name, media_name[de->media_type]); | |
898 | } | |
899 | } | |
900 | ||
901 | static void de_link_down(struct de_private *de) | |
902 | { | |
903 | if (netif_carrier_ok(de->dev)) { | |
904 | netif_carrier_off(de->dev); | |
905 | if (netif_msg_link(de)) | |
906 | printk(KERN_INFO "%s: link down\n", de->dev->name); | |
907 | } | |
908 | } | |
909 | ||
910 | static void de_set_media (struct de_private *de) | |
911 | { | |
912 | unsigned media = de->media_type; | |
913 | u32 macmode = dr32(MacMode); | |
914 | ||
7e0b58f3 | 915 | BUG_ON(de_is_running(de)); |
1da177e4 LT |
916 | |
917 | if (de->de21040) | |
918 | dw32(CSR11, FULL_DUPLEX_MAGIC); | |
919 | dw32(CSR13, 0); /* Reset phy */ | |
920 | dw32(CSR14, de->media[media].csr14); | |
921 | dw32(CSR15, de->media[media].csr15); | |
922 | dw32(CSR13, de->media[media].csr13); | |
923 | ||
924 | /* must delay 10ms before writing to other registers, | |
925 | * especially CSR6 | |
926 | */ | |
927 | mdelay(10); | |
928 | ||
929 | if (media == DE_MEDIA_TP_FD) | |
930 | macmode |= FullDuplex; | |
931 | else | |
932 | macmode &= ~FullDuplex; | |
f3b197ac | 933 | |
1da177e4 LT |
934 | if (netif_msg_link(de)) { |
935 | printk(KERN_INFO "%s: set link %s\n" | |
936 | KERN_INFO "%s: mode 0x%x, sia 0x%x,0x%x,0x%x,0x%x\n" | |
937 | KERN_INFO "%s: set mode 0x%x, set sia 0x%x,0x%x,0x%x\n", | |
938 | de->dev->name, media_name[media], | |
939 | de->dev->name, dr32(MacMode), dr32(SIAStatus), | |
940 | dr32(CSR13), dr32(CSR14), dr32(CSR15), | |
941 | de->dev->name, macmode, de->media[media].csr13, | |
942 | de->media[media].csr14, de->media[media].csr15); | |
943 | } | |
944 | if (macmode != dr32(MacMode)) | |
945 | dw32(MacMode, macmode); | |
946 | } | |
947 | ||
948 | static void de_next_media (struct de_private *de, u32 *media, | |
949 | unsigned int n_media) | |
950 | { | |
951 | unsigned int i; | |
952 | ||
953 | for (i = 0; i < n_media; i++) { | |
954 | if (de_ok_to_advertise(de, media[i])) { | |
955 | de->media_type = media[i]; | |
956 | return; | |
957 | } | |
958 | } | |
959 | } | |
960 | ||
961 | static void de21040_media_timer (unsigned long data) | |
962 | { | |
963 | struct de_private *de = (struct de_private *) data; | |
964 | struct net_device *dev = de->dev; | |
965 | u32 status = dr32(SIAStatus); | |
966 | unsigned int carrier; | |
967 | unsigned long flags; | |
f3b197ac | 968 | |
1da177e4 | 969 | carrier = (status & NetCxnErr) ? 0 : 1; |
f3b197ac | 970 | |
1da177e4 LT |
971 | if (carrier) { |
972 | if (de->media_type != DE_MEDIA_AUI && (status & LinkFailStatus)) | |
973 | goto no_link_yet; | |
974 | ||
975 | de->media_timer.expires = jiffies + DE_TIMER_LINK; | |
976 | add_timer(&de->media_timer); | |
977 | if (!netif_carrier_ok(dev)) | |
978 | de_link_up(de); | |
979 | else | |
980 | if (netif_msg_timer(de)) | |
981 | printk(KERN_INFO "%s: %s link ok, status %x\n", | |
982 | dev->name, media_name[de->media_type], | |
983 | status); | |
984 | return; | |
985 | } | |
986 | ||
f3b197ac | 987 | de_link_down(de); |
1da177e4 LT |
988 | |
989 | if (de->media_lock) | |
990 | return; | |
991 | ||
992 | if (de->media_type == DE_MEDIA_AUI) { | |
993 | u32 next_state = DE_MEDIA_TP; | |
994 | de_next_media(de, &next_state, 1); | |
995 | } else { | |
996 | u32 next_state = DE_MEDIA_AUI; | |
997 | de_next_media(de, &next_state, 1); | |
998 | } | |
999 | ||
1000 | spin_lock_irqsave(&de->lock, flags); | |
1001 | de_stop_rxtx(de); | |
1002 | spin_unlock_irqrestore(&de->lock, flags); | |
1003 | de_set_media(de); | |
1004 | de_start_rxtx(de); | |
1005 | ||
1006 | no_link_yet: | |
1007 | de->media_timer.expires = jiffies + DE_TIMER_NO_LINK; | |
1008 | add_timer(&de->media_timer); | |
1009 | ||
1010 | if (netif_msg_timer(de)) | |
1011 | printk(KERN_INFO "%s: no link, trying media %s, status %x\n", | |
1012 | dev->name, media_name[de->media_type], status); | |
1013 | } | |
1014 | ||
1015 | static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media) | |
1016 | { | |
1017 | switch (new_media) { | |
1018 | case DE_MEDIA_TP_AUTO: | |
1019 | if (!(de->media_advertise & ADVERTISED_Autoneg)) | |
1020 | return 0; | |
1021 | if (!(de->media_advertise & (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full))) | |
1022 | return 0; | |
1023 | break; | |
1024 | case DE_MEDIA_BNC: | |
1025 | if (!(de->media_advertise & ADVERTISED_BNC)) | |
1026 | return 0; | |
1027 | break; | |
1028 | case DE_MEDIA_AUI: | |
1029 | if (!(de->media_advertise & ADVERTISED_AUI)) | |
1030 | return 0; | |
1031 | break; | |
1032 | case DE_MEDIA_TP: | |
1033 | if (!(de->media_advertise & ADVERTISED_10baseT_Half)) | |
1034 | return 0; | |
1035 | break; | |
1036 | case DE_MEDIA_TP_FD: | |
1037 | if (!(de->media_advertise & ADVERTISED_10baseT_Full)) | |
1038 | return 0; | |
1039 | break; | |
1040 | } | |
f3b197ac | 1041 | |
1da177e4 LT |
1042 | return 1; |
1043 | } | |
1044 | ||
1045 | static void de21041_media_timer (unsigned long data) | |
1046 | { | |
1047 | struct de_private *de = (struct de_private *) data; | |
1048 | struct net_device *dev = de->dev; | |
1049 | u32 status = dr32(SIAStatus); | |
1050 | unsigned int carrier; | |
1051 | unsigned long flags; | |
f3b197ac | 1052 | |
1da177e4 | 1053 | carrier = (status & NetCxnErr) ? 0 : 1; |
f3b197ac | 1054 | |
1da177e4 LT |
1055 | if (carrier) { |
1056 | if ((de->media_type == DE_MEDIA_TP_AUTO || | |
1057 | de->media_type == DE_MEDIA_TP || | |
1058 | de->media_type == DE_MEDIA_TP_FD) && | |
1059 | (status & LinkFailStatus)) | |
1060 | goto no_link_yet; | |
1061 | ||
1062 | de->media_timer.expires = jiffies + DE_TIMER_LINK; | |
1063 | add_timer(&de->media_timer); | |
1064 | if (!netif_carrier_ok(dev)) | |
1065 | de_link_up(de); | |
1066 | else | |
1067 | if (netif_msg_timer(de)) | |
1068 | printk(KERN_INFO "%s: %s link ok, mode %x status %x\n", | |
1069 | dev->name, media_name[de->media_type], | |
1070 | dr32(MacMode), status); | |
1071 | return; | |
1072 | } | |
1073 | ||
f3b197ac | 1074 | de_link_down(de); |
1da177e4 LT |
1075 | |
1076 | /* if media type locked, don't switch media */ | |
1077 | if (de->media_lock) | |
1078 | goto set_media; | |
1079 | ||
1080 | /* if activity detected, use that as hint for new media type */ | |
1081 | if (status & NonselPortActive) { | |
1082 | unsigned int have_media = 1; | |
1083 | ||
1084 | /* if AUI/BNC selected, then activity is on TP port */ | |
1085 | if (de->media_type == DE_MEDIA_AUI || | |
1086 | de->media_type == DE_MEDIA_BNC) { | |
1087 | if (de_ok_to_advertise(de, DE_MEDIA_TP_AUTO)) | |
1088 | de->media_type = DE_MEDIA_TP_AUTO; | |
1089 | else | |
1090 | have_media = 0; | |
1091 | } | |
1092 | ||
1093 | /* TP selected. If there is only TP and BNC, then it's BNC */ | |
1094 | else if (((de->media_supported & DE_AUI_BNC) == SUPPORTED_BNC) && | |
1095 | de_ok_to_advertise(de, DE_MEDIA_BNC)) | |
1096 | de->media_type = DE_MEDIA_BNC; | |
1097 | ||
1098 | /* TP selected. If there is only TP and AUI, then it's AUI */ | |
1099 | else if (((de->media_supported & DE_AUI_BNC) == SUPPORTED_AUI) && | |
1100 | de_ok_to_advertise(de, DE_MEDIA_AUI)) | |
1101 | de->media_type = DE_MEDIA_AUI; | |
1102 | ||
1103 | /* otherwise, ignore the hint */ | |
1104 | else | |
1105 | have_media = 0; | |
1106 | ||
1107 | if (have_media) | |
1108 | goto set_media; | |
1109 | } | |
1110 | ||
1111 | /* | |
1112 | * Absent or ambiguous activity hint, move to next advertised | |
1113 | * media state. If de->media_type is left unchanged, this | |
1114 | * simply resets the PHY and reloads the current media settings. | |
1115 | */ | |
1116 | if (de->media_type == DE_MEDIA_AUI) { | |
1117 | u32 next_states[] = { DE_MEDIA_BNC, DE_MEDIA_TP_AUTO }; | |
1118 | de_next_media(de, next_states, ARRAY_SIZE(next_states)); | |
1119 | } else if (de->media_type == DE_MEDIA_BNC) { | |
1120 | u32 next_states[] = { DE_MEDIA_TP_AUTO, DE_MEDIA_AUI }; | |
1121 | de_next_media(de, next_states, ARRAY_SIZE(next_states)); | |
1122 | } else { | |
1123 | u32 next_states[] = { DE_MEDIA_AUI, DE_MEDIA_BNC, DE_MEDIA_TP_AUTO }; | |
1124 | de_next_media(de, next_states, ARRAY_SIZE(next_states)); | |
1125 | } | |
f3b197ac | 1126 | |
1da177e4 LT |
1127 | set_media: |
1128 | spin_lock_irqsave(&de->lock, flags); | |
1129 | de_stop_rxtx(de); | |
1130 | spin_unlock_irqrestore(&de->lock, flags); | |
1131 | de_set_media(de); | |
1132 | de_start_rxtx(de); | |
1133 | ||
1134 | no_link_yet: | |
1135 | de->media_timer.expires = jiffies + DE_TIMER_NO_LINK; | |
1136 | add_timer(&de->media_timer); | |
1137 | ||
1138 | if (netif_msg_timer(de)) | |
1139 | printk(KERN_INFO "%s: no link, trying media %s, status %x\n", | |
1140 | dev->name, media_name[de->media_type], status); | |
1141 | } | |
1142 | ||
1143 | static void de_media_interrupt (struct de_private *de, u32 status) | |
1144 | { | |
1145 | if (status & LinkPass) { | |
1146 | de_link_up(de); | |
1147 | mod_timer(&de->media_timer, jiffies + DE_TIMER_LINK); | |
1148 | return; | |
1149 | } | |
f3b197ac | 1150 | |
7e0b58f3 | 1151 | BUG_ON(!(status & LinkFail)); |
1da177e4 LT |
1152 | |
1153 | if (netif_carrier_ok(de->dev)) { | |
1154 | de_link_down(de); | |
1155 | mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK); | |
1156 | } | |
1157 | } | |
1158 | ||
1159 | static int de_reset_mac (struct de_private *de) | |
1160 | { | |
1161 | u32 status, tmp; | |
1162 | ||
1163 | /* | |
1164 | * Reset MAC. de4x5.c and tulip.c examined for "advice" | |
1165 | * in this area. | |
1166 | */ | |
1167 | ||
1168 | if (dr32(BusMode) == 0xffffffff) | |
1169 | return -EBUSY; | |
1170 | ||
1171 | /* Reset the chip, holding bit 0 set at least 50 PCI cycles. */ | |
1172 | dw32 (BusMode, CmdReset); | |
1173 | mdelay (1); | |
1174 | ||
1175 | dw32 (BusMode, de_bus_mode); | |
1176 | mdelay (1); | |
1177 | ||
1178 | for (tmp = 0; tmp < 5; tmp++) { | |
1179 | dr32 (BusMode); | |
1180 | mdelay (1); | |
1181 | } | |
1182 | ||
1183 | mdelay (1); | |
1184 | ||
1185 | status = dr32(MacStatus); | |
1186 | if (status & (RxState | TxState)) | |
1187 | return -EBUSY; | |
1188 | if (status == 0xffffffff) | |
1189 | return -ENODEV; | |
1190 | return 0; | |
1191 | } | |
1192 | ||
1193 | static void de_adapter_wake (struct de_private *de) | |
1194 | { | |
1195 | u32 pmctl; | |
1196 | ||
1197 | if (de->de21040) | |
1198 | return; | |
1199 | ||
1200 | pci_read_config_dword(de->pdev, PCIPM, &pmctl); | |
1201 | if (pmctl & PM_Mask) { | |
1202 | pmctl &= ~PM_Mask; | |
1203 | pci_write_config_dword(de->pdev, PCIPM, pmctl); | |
1204 | ||
1205 | /* de4x5.c delays, so we do too */ | |
1206 | msleep(10); | |
1207 | } | |
1208 | } | |
1209 | ||
1210 | static void de_adapter_sleep (struct de_private *de) | |
1211 | { | |
1212 | u32 pmctl; | |
1213 | ||
1214 | if (de->de21040) | |
1215 | return; | |
1216 | ||
1217 | pci_read_config_dword(de->pdev, PCIPM, &pmctl); | |
1218 | pmctl |= PM_Sleep; | |
1219 | pci_write_config_dword(de->pdev, PCIPM, pmctl); | |
1220 | } | |
1221 | ||
1222 | static int de_init_hw (struct de_private *de) | |
1223 | { | |
1224 | struct net_device *dev = de->dev; | |
1225 | u32 macmode; | |
1226 | int rc; | |
1227 | ||
1228 | de_adapter_wake(de); | |
f3b197ac | 1229 | |
1da177e4 LT |
1230 | macmode = dr32(MacMode) & ~MacModeClear; |
1231 | ||
1232 | rc = de_reset_mac(de); | |
1233 | if (rc) | |
1234 | return rc; | |
1235 | ||
1236 | de_set_media(de); /* reset phy */ | |
1237 | ||
1238 | dw32(RxRingAddr, de->ring_dma); | |
1239 | dw32(TxRingAddr, de->ring_dma + (sizeof(struct de_desc) * DE_RX_RING_SIZE)); | |
1240 | ||
1241 | dw32(MacMode, RxTx | macmode); | |
1242 | ||
1243 | dr32(RxMissed); /* self-clearing */ | |
1244 | ||
1245 | dw32(IntrMask, de_intr_mask); | |
1246 | ||
1247 | de_set_rx_mode(dev); | |
1248 | ||
1249 | return 0; | |
1250 | } | |
1251 | ||
1252 | static int de_refill_rx (struct de_private *de) | |
1253 | { | |
1254 | unsigned i; | |
1255 | ||
1256 | for (i = 0; i < DE_RX_RING_SIZE; i++) { | |
1257 | struct sk_buff *skb; | |
1258 | ||
1259 | skb = dev_alloc_skb(de->rx_buf_sz); | |
1260 | if (!skb) | |
1261 | goto err_out; | |
1262 | ||
1263 | skb->dev = de->dev; | |
1264 | ||
1265 | de->rx_skb[i].mapping = pci_map_single(de->pdev, | |
689be439 | 1266 | skb->data, de->rx_buf_sz, PCI_DMA_FROMDEVICE); |
1da177e4 LT |
1267 | de->rx_skb[i].skb = skb; |
1268 | ||
1269 | de->rx_ring[i].opts1 = cpu_to_le32(DescOwn); | |
1270 | if (i == (DE_RX_RING_SIZE - 1)) | |
1271 | de->rx_ring[i].opts2 = | |
1272 | cpu_to_le32(RingEnd | de->rx_buf_sz); | |
1273 | else | |
1274 | de->rx_ring[i].opts2 = cpu_to_le32(de->rx_buf_sz); | |
1275 | de->rx_ring[i].addr1 = cpu_to_le32(de->rx_skb[i].mapping); | |
1276 | de->rx_ring[i].addr2 = 0; | |
1277 | } | |
1278 | ||
1279 | return 0; | |
1280 | ||
1281 | err_out: | |
1282 | de_clean_rings(de); | |
1283 | return -ENOMEM; | |
1284 | } | |
1285 | ||
1286 | static int de_init_rings (struct de_private *de) | |
1287 | { | |
1288 | memset(de->tx_ring, 0, sizeof(struct de_desc) * DE_TX_RING_SIZE); | |
1289 | de->tx_ring[DE_TX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd); | |
1290 | ||
1291 | de->rx_tail = 0; | |
1292 | de->tx_head = de->tx_tail = 0; | |
1293 | ||
1294 | return de_refill_rx (de); | |
1295 | } | |
1296 | ||
1297 | static int de_alloc_rings (struct de_private *de) | |
1298 | { | |
1299 | de->rx_ring = pci_alloc_consistent(de->pdev, DE_RING_BYTES, &de->ring_dma); | |
1300 | if (!de->rx_ring) | |
1301 | return -ENOMEM; | |
1302 | de->tx_ring = &de->rx_ring[DE_RX_RING_SIZE]; | |
1303 | return de_init_rings(de); | |
1304 | } | |
1305 | ||
1306 | static void de_clean_rings (struct de_private *de) | |
1307 | { | |
1308 | unsigned i; | |
1309 | ||
1310 | memset(de->rx_ring, 0, sizeof(struct de_desc) * DE_RX_RING_SIZE); | |
1311 | de->rx_ring[DE_RX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd); | |
1312 | wmb(); | |
1313 | memset(de->tx_ring, 0, sizeof(struct de_desc) * DE_TX_RING_SIZE); | |
1314 | de->tx_ring[DE_TX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd); | |
1315 | wmb(); | |
1316 | ||
1317 | for (i = 0; i < DE_RX_RING_SIZE; i++) { | |
1318 | if (de->rx_skb[i].skb) { | |
1319 | pci_unmap_single(de->pdev, de->rx_skb[i].mapping, | |
1320 | de->rx_buf_sz, PCI_DMA_FROMDEVICE); | |
1321 | dev_kfree_skb(de->rx_skb[i].skb); | |
1322 | } | |
1323 | } | |
1324 | ||
1325 | for (i = 0; i < DE_TX_RING_SIZE; i++) { | |
1326 | struct sk_buff *skb = de->tx_skb[i].skb; | |
1327 | if ((skb) && (skb != DE_DUMMY_SKB)) { | |
1328 | if (skb != DE_SETUP_SKB) { | |
1da177e4 LT |
1329 | de->net_stats.tx_dropped++; |
1330 | pci_unmap_single(de->pdev, | |
1331 | de->tx_skb[i].mapping, | |
1332 | skb->len, PCI_DMA_TODEVICE); | |
5185c7c2 | 1333 | dev_kfree_skb(skb); |
1da177e4 LT |
1334 | } else { |
1335 | pci_unmap_single(de->pdev, | |
1336 | de->tx_skb[i].mapping, | |
1337 | sizeof(de->setup_frame), | |
1338 | PCI_DMA_TODEVICE); | |
1339 | } | |
1340 | } | |
1341 | } | |
1342 | ||
1343 | memset(&de->rx_skb, 0, sizeof(struct ring_info) * DE_RX_RING_SIZE); | |
1344 | memset(&de->tx_skb, 0, sizeof(struct ring_info) * DE_TX_RING_SIZE); | |
1345 | } | |
1346 | ||
1347 | static void de_free_rings (struct de_private *de) | |
1348 | { | |
1349 | de_clean_rings(de); | |
1350 | pci_free_consistent(de->pdev, DE_RING_BYTES, de->rx_ring, de->ring_dma); | |
1351 | de->rx_ring = NULL; | |
1352 | de->tx_ring = NULL; | |
1353 | } | |
1354 | ||
1355 | static int de_open (struct net_device *dev) | |
1356 | { | |
1357 | struct de_private *de = dev->priv; | |
1358 | int rc; | |
1da177e4 LT |
1359 | |
1360 | if (netif_msg_ifup(de)) | |
1361 | printk(KERN_DEBUG "%s: enabling interface\n", dev->name); | |
1362 | ||
1363 | de->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32); | |
1364 | ||
1365 | rc = de_alloc_rings(de); | |
1366 | if (rc) { | |
1367 | printk(KERN_ERR "%s: ring allocation failure, err=%d\n", | |
1368 | dev->name, rc); | |
1369 | return rc; | |
1370 | } | |
1371 | ||
3f735b76 | 1372 | dw32(IntrMask, 0); |
1da177e4 | 1373 | |
1fb9df5d | 1374 | rc = request_irq(dev->irq, de_interrupt, IRQF_SHARED, dev->name, dev); |
1da177e4 LT |
1375 | if (rc) { |
1376 | printk(KERN_ERR "%s: IRQ %d request failure, err=%d\n", | |
1377 | dev->name, dev->irq, rc); | |
3f735b76 FR |
1378 | goto err_out_free; |
1379 | } | |
1380 | ||
1381 | rc = de_init_hw(de); | |
1382 | if (rc) { | |
1383 | printk(KERN_ERR "%s: h/w init failure, err=%d\n", | |
1384 | dev->name, rc); | |
1385 | goto err_out_free_irq; | |
1da177e4 LT |
1386 | } |
1387 | ||
1388 | netif_start_queue(dev); | |
1389 | mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK); | |
1390 | ||
1391 | return 0; | |
1392 | ||
3f735b76 FR |
1393 | err_out_free_irq: |
1394 | free_irq(dev->irq, dev); | |
1da177e4 LT |
1395 | err_out_free: |
1396 | de_free_rings(de); | |
1397 | return rc; | |
1398 | } | |
1399 | ||
1400 | static int de_close (struct net_device *dev) | |
1401 | { | |
1402 | struct de_private *de = dev->priv; | |
1403 | unsigned long flags; | |
1404 | ||
1405 | if (netif_msg_ifdown(de)) | |
1406 | printk(KERN_DEBUG "%s: disabling interface\n", dev->name); | |
1407 | ||
1408 | del_timer_sync(&de->media_timer); | |
1409 | ||
1410 | spin_lock_irqsave(&de->lock, flags); | |
1411 | de_stop_hw(de); | |
1412 | netif_stop_queue(dev); | |
1413 | netif_carrier_off(dev); | |
1414 | spin_unlock_irqrestore(&de->lock, flags); | |
f3b197ac | 1415 | |
1da177e4 LT |
1416 | free_irq(dev->irq, dev); |
1417 | ||
1418 | de_free_rings(de); | |
1419 | de_adapter_sleep(de); | |
1420 | pci_disable_device(de->pdev); | |
1421 | return 0; | |
1422 | } | |
1423 | ||
1424 | static void de_tx_timeout (struct net_device *dev) | |
1425 | { | |
1426 | struct de_private *de = dev->priv; | |
1427 | ||
1428 | printk(KERN_DEBUG "%s: NIC status %08x mode %08x sia %08x desc %u/%u/%u\n", | |
1429 | dev->name, dr32(MacStatus), dr32(MacMode), dr32(SIAStatus), | |
1430 | de->rx_tail, de->tx_head, de->tx_tail); | |
1431 | ||
1432 | del_timer_sync(&de->media_timer); | |
1433 | ||
1434 | disable_irq(dev->irq); | |
1435 | spin_lock_irq(&de->lock); | |
1436 | ||
1437 | de_stop_hw(de); | |
1438 | netif_stop_queue(dev); | |
1439 | netif_carrier_off(dev); | |
1440 | ||
1441 | spin_unlock_irq(&de->lock); | |
1442 | enable_irq(dev->irq); | |
f3b197ac | 1443 | |
1da177e4 LT |
1444 | /* Update the error counts. */ |
1445 | __de_get_stats(de); | |
1446 | ||
1447 | synchronize_irq(dev->irq); | |
1448 | de_clean_rings(de); | |
1449 | ||
39bf4295 FR |
1450 | de_init_rings(de); |
1451 | ||
1da177e4 | 1452 | de_init_hw(de); |
f3b197ac | 1453 | |
1da177e4 LT |
1454 | netif_wake_queue(dev); |
1455 | } | |
1456 | ||
1457 | static void __de_get_regs(struct de_private *de, u8 *buf) | |
1458 | { | |
1459 | int i; | |
1460 | u32 *rbuf = (u32 *)buf; | |
f3b197ac | 1461 | |
1da177e4 LT |
1462 | /* read all CSRs */ |
1463 | for (i = 0; i < DE_NUM_REGS; i++) | |
1464 | rbuf[i] = dr32(i * 8); | |
1465 | ||
1466 | /* handle self-clearing RxMissed counter, CSR8 */ | |
1467 | de_rx_missed(de, rbuf[8]); | |
1468 | } | |
1469 | ||
1470 | static int __de_get_settings(struct de_private *de, struct ethtool_cmd *ecmd) | |
1471 | { | |
1472 | ecmd->supported = de->media_supported; | |
1473 | ecmd->transceiver = XCVR_INTERNAL; | |
1474 | ecmd->phy_address = 0; | |
1475 | ecmd->advertising = de->media_advertise; | |
f3b197ac | 1476 | |
1da177e4 LT |
1477 | switch (de->media_type) { |
1478 | case DE_MEDIA_AUI: | |
1479 | ecmd->port = PORT_AUI; | |
1480 | ecmd->speed = 5; | |
1481 | break; | |
1482 | case DE_MEDIA_BNC: | |
1483 | ecmd->port = PORT_BNC; | |
1484 | ecmd->speed = 2; | |
1485 | break; | |
1486 | default: | |
1487 | ecmd->port = PORT_TP; | |
1488 | ecmd->speed = SPEED_10; | |
1489 | break; | |
1490 | } | |
f3b197ac | 1491 | |
1da177e4 LT |
1492 | if (dr32(MacMode) & FullDuplex) |
1493 | ecmd->duplex = DUPLEX_FULL; | |
1494 | else | |
1495 | ecmd->duplex = DUPLEX_HALF; | |
1496 | ||
1497 | if (de->media_lock) | |
1498 | ecmd->autoneg = AUTONEG_DISABLE; | |
1499 | else | |
1500 | ecmd->autoneg = AUTONEG_ENABLE; | |
1501 | ||
1502 | /* ignore maxtxpkt, maxrxpkt for now */ | |
1503 | ||
1504 | return 0; | |
1505 | } | |
1506 | ||
1507 | static int __de_set_settings(struct de_private *de, struct ethtool_cmd *ecmd) | |
1508 | { | |
1509 | u32 new_media; | |
1510 | unsigned int media_lock; | |
1511 | ||
1512 | if (ecmd->speed != SPEED_10 && ecmd->speed != 5 && ecmd->speed != 2) | |
1513 | return -EINVAL; | |
1514 | if (de->de21040 && ecmd->speed == 2) | |
1515 | return -EINVAL; | |
1516 | if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL) | |
1517 | return -EINVAL; | |
1518 | if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI && ecmd->port != PORT_BNC) | |
1519 | return -EINVAL; | |
1520 | if (de->de21040 && ecmd->port == PORT_BNC) | |
1521 | return -EINVAL; | |
1522 | if (ecmd->transceiver != XCVR_INTERNAL) | |
1523 | return -EINVAL; | |
1524 | if (ecmd->autoneg != AUTONEG_DISABLE && ecmd->autoneg != AUTONEG_ENABLE) | |
1525 | return -EINVAL; | |
1526 | if (ecmd->advertising & ~de->media_supported) | |
1527 | return -EINVAL; | |
1528 | if (ecmd->autoneg == AUTONEG_ENABLE && | |
1529 | (!(ecmd->advertising & ADVERTISED_Autoneg))) | |
1530 | return -EINVAL; | |
f3b197ac | 1531 | |
1da177e4 LT |
1532 | switch (ecmd->port) { |
1533 | case PORT_AUI: | |
1534 | new_media = DE_MEDIA_AUI; | |
1535 | if (!(ecmd->advertising & ADVERTISED_AUI)) | |
1536 | return -EINVAL; | |
1537 | break; | |
1538 | case PORT_BNC: | |
1539 | new_media = DE_MEDIA_BNC; | |
1540 | if (!(ecmd->advertising & ADVERTISED_BNC)) | |
1541 | return -EINVAL; | |
1542 | break; | |
1543 | default: | |
1544 | if (ecmd->autoneg == AUTONEG_ENABLE) | |
1545 | new_media = DE_MEDIA_TP_AUTO; | |
1546 | else if (ecmd->duplex == DUPLEX_FULL) | |
1547 | new_media = DE_MEDIA_TP_FD; | |
1548 | else | |
1549 | new_media = DE_MEDIA_TP; | |
1550 | if (!(ecmd->advertising & ADVERTISED_TP)) | |
1551 | return -EINVAL; | |
1552 | if (!(ecmd->advertising & (ADVERTISED_10baseT_Full | ADVERTISED_10baseT_Half))) | |
1553 | return -EINVAL; | |
1554 | break; | |
1555 | } | |
f3b197ac | 1556 | |
1da177e4 | 1557 | media_lock = (ecmd->autoneg == AUTONEG_ENABLE) ? 0 : 1; |
f3b197ac | 1558 | |
1da177e4 LT |
1559 | if ((new_media == de->media_type) && |
1560 | (media_lock == de->media_lock) && | |
1561 | (ecmd->advertising == de->media_advertise)) | |
1562 | return 0; /* nothing to change */ | |
f3b197ac | 1563 | |
1da177e4 LT |
1564 | de_link_down(de); |
1565 | de_stop_rxtx(de); | |
f3b197ac | 1566 | |
1da177e4 LT |
1567 | de->media_type = new_media; |
1568 | de->media_lock = media_lock; | |
1569 | de->media_advertise = ecmd->advertising; | |
1570 | de_set_media(de); | |
f3b197ac | 1571 | |
1da177e4 LT |
1572 | return 0; |
1573 | } | |
1574 | ||
1575 | static void de_get_drvinfo (struct net_device *dev,struct ethtool_drvinfo *info) | |
1576 | { | |
1577 | struct de_private *de = dev->priv; | |
1578 | ||
1579 | strcpy (info->driver, DRV_NAME); | |
1580 | strcpy (info->version, DRV_VERSION); | |
1581 | strcpy (info->bus_info, pci_name(de->pdev)); | |
1582 | info->eedump_len = DE_EEPROM_SIZE; | |
1583 | } | |
1584 | ||
1585 | static int de_get_regs_len(struct net_device *dev) | |
1586 | { | |
1587 | return DE_REGS_SIZE; | |
1588 | } | |
1589 | ||
1590 | static int de_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1591 | { | |
1592 | struct de_private *de = dev->priv; | |
1593 | int rc; | |
1594 | ||
1595 | spin_lock_irq(&de->lock); | |
1596 | rc = __de_get_settings(de, ecmd); | |
1597 | spin_unlock_irq(&de->lock); | |
1598 | ||
1599 | return rc; | |
1600 | } | |
1601 | ||
1602 | static int de_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1603 | { | |
1604 | struct de_private *de = dev->priv; | |
1605 | int rc; | |
1606 | ||
1607 | spin_lock_irq(&de->lock); | |
1608 | rc = __de_set_settings(de, ecmd); | |
1609 | spin_unlock_irq(&de->lock); | |
1610 | ||
1611 | return rc; | |
1612 | } | |
1613 | ||
1614 | static u32 de_get_msglevel(struct net_device *dev) | |
1615 | { | |
1616 | struct de_private *de = dev->priv; | |
1617 | ||
1618 | return de->msg_enable; | |
1619 | } | |
1620 | ||
1621 | static void de_set_msglevel(struct net_device *dev, u32 msglvl) | |
1622 | { | |
1623 | struct de_private *de = dev->priv; | |
1624 | ||
1625 | de->msg_enable = msglvl; | |
1626 | } | |
1627 | ||
1628 | static int de_get_eeprom(struct net_device *dev, | |
1629 | struct ethtool_eeprom *eeprom, u8 *data) | |
1630 | { | |
1631 | struct de_private *de = dev->priv; | |
1632 | ||
1633 | if (!de->ee_data) | |
1634 | return -EOPNOTSUPP; | |
1635 | if ((eeprom->offset != 0) || (eeprom->magic != 0) || | |
1636 | (eeprom->len != DE_EEPROM_SIZE)) | |
1637 | return -EINVAL; | |
1638 | memcpy(data, de->ee_data, eeprom->len); | |
1639 | ||
1640 | return 0; | |
1641 | } | |
1642 | ||
1643 | static int de_nway_reset(struct net_device *dev) | |
1644 | { | |
1645 | struct de_private *de = dev->priv; | |
1646 | u32 status; | |
1647 | ||
1648 | if (de->media_type != DE_MEDIA_TP_AUTO) | |
1649 | return -EINVAL; | |
1650 | if (netif_carrier_ok(de->dev)) | |
1651 | de_link_down(de); | |
1652 | ||
1653 | status = dr32(SIAStatus); | |
1654 | dw32(SIAStatus, (status & ~NWayState) | NWayRestart); | |
1655 | if (netif_msg_link(de)) | |
1656 | printk(KERN_INFO "%s: link nway restart, status %x,%x\n", | |
1657 | de->dev->name, status, dr32(SIAStatus)); | |
1658 | return 0; | |
1659 | } | |
1660 | ||
1661 | static void de_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
1662 | void *data) | |
1663 | { | |
1664 | struct de_private *de = dev->priv; | |
1665 | ||
1666 | regs->version = (DE_REGS_VER << 2) | de->de21040; | |
1667 | ||
1668 | spin_lock_irq(&de->lock); | |
1669 | __de_get_regs(de, data); | |
1670 | spin_unlock_irq(&de->lock); | |
1671 | } | |
1672 | ||
1673 | static struct ethtool_ops de_ethtool_ops = { | |
1674 | .get_link = ethtool_op_get_link, | |
1675 | .get_tx_csum = ethtool_op_get_tx_csum, | |
1676 | .get_sg = ethtool_op_get_sg, | |
1677 | .get_drvinfo = de_get_drvinfo, | |
1678 | .get_regs_len = de_get_regs_len, | |
1679 | .get_settings = de_get_settings, | |
1680 | .set_settings = de_set_settings, | |
1681 | .get_msglevel = de_get_msglevel, | |
1682 | .set_msglevel = de_set_msglevel, | |
1683 | .get_eeprom = de_get_eeprom, | |
1684 | .nway_reset = de_nway_reset, | |
1685 | .get_regs = de_get_regs, | |
1686 | }; | |
1687 | ||
1688 | static void __init de21040_get_mac_address (struct de_private *de) | |
1689 | { | |
1690 | unsigned i; | |
1691 | ||
1692 | dw32 (ROMCmd, 0); /* Reset the pointer with a dummy write. */ | |
1693 | ||
1694 | for (i = 0; i < 6; i++) { | |
1695 | int value, boguscnt = 100000; | |
1696 | do | |
1697 | value = dr32(ROMCmd); | |
1698 | while (value < 0 && --boguscnt > 0); | |
1699 | de->dev->dev_addr[i] = value; | |
1700 | udelay(1); | |
1701 | if (boguscnt <= 0) | |
1702 | printk(KERN_WARNING PFX "timeout reading 21040 MAC address byte %u\n", i); | |
1703 | } | |
1704 | } | |
1705 | ||
1706 | static void __init de21040_get_media_info(struct de_private *de) | |
1707 | { | |
1708 | unsigned int i; | |
1709 | ||
1710 | de->media_type = DE_MEDIA_TP; | |
1711 | de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Full | | |
1712 | SUPPORTED_10baseT_Half | SUPPORTED_AUI; | |
1713 | de->media_advertise = de->media_supported; | |
1714 | ||
1715 | for (i = 0; i < DE_MAX_MEDIA; i++) { | |
1716 | switch (i) { | |
1717 | case DE_MEDIA_AUI: | |
1718 | case DE_MEDIA_TP: | |
1719 | case DE_MEDIA_TP_FD: | |
1720 | de->media[i].type = i; | |
1721 | de->media[i].csr13 = t21040_csr13[i]; | |
1722 | de->media[i].csr14 = t21040_csr14[i]; | |
1723 | de->media[i].csr15 = t21040_csr15[i]; | |
1724 | break; | |
1725 | default: | |
1726 | de->media[i].type = DE_MEDIA_INVALID; | |
1727 | break; | |
1728 | } | |
1729 | } | |
1730 | } | |
1731 | ||
1732 | /* Note: this routine returns extra data bits for size detection. */ | |
1733 | static unsigned __init tulip_read_eeprom(void __iomem *regs, int location, int addr_len) | |
1734 | { | |
1735 | int i; | |
1736 | unsigned retval = 0; | |
1737 | void __iomem *ee_addr = regs + ROMCmd; | |
1738 | int read_cmd = location | (EE_READ_CMD << addr_len); | |
1739 | ||
1740 | writel(EE_ENB & ~EE_CS, ee_addr); | |
1741 | writel(EE_ENB, ee_addr); | |
1742 | ||
1743 | /* Shift the read command bits out. */ | |
1744 | for (i = 4 + addr_len; i >= 0; i--) { | |
1745 | short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; | |
1746 | writel(EE_ENB | dataval, ee_addr); | |
1747 | readl(ee_addr); | |
1748 | writel(EE_ENB | dataval | EE_SHIFT_CLK, ee_addr); | |
1749 | readl(ee_addr); | |
1750 | retval = (retval << 1) | ((readl(ee_addr) & EE_DATA_READ) ? 1 : 0); | |
1751 | } | |
1752 | writel(EE_ENB, ee_addr); | |
1753 | readl(ee_addr); | |
1754 | ||
1755 | for (i = 16; i > 0; i--) { | |
1756 | writel(EE_ENB | EE_SHIFT_CLK, ee_addr); | |
1757 | readl(ee_addr); | |
1758 | retval = (retval << 1) | ((readl(ee_addr) & EE_DATA_READ) ? 1 : 0); | |
1759 | writel(EE_ENB, ee_addr); | |
1760 | readl(ee_addr); | |
1761 | } | |
1762 | ||
1763 | /* Terminate the EEPROM access. */ | |
1764 | writel(EE_ENB & ~EE_CS, ee_addr); | |
1765 | return retval; | |
1766 | } | |
1767 | ||
1768 | static void __init de21041_get_srom_info (struct de_private *de) | |
1769 | { | |
1770 | unsigned i, sa_offset = 0, ofs; | |
1771 | u8 ee_data[DE_EEPROM_SIZE + 6] = {}; | |
1772 | unsigned ee_addr_size = tulip_read_eeprom(de->regs, 0xff, 8) & 0x40000 ? 8 : 6; | |
1773 | struct de_srom_info_leaf *il; | |
1774 | void *bufp; | |
1775 | ||
1776 | /* download entire eeprom */ | |
1777 | for (i = 0; i < DE_EEPROM_WORDS; i++) | |
1778 | ((u16 *)ee_data)[i] = | |
1779 | le16_to_cpu(tulip_read_eeprom(de->regs, i, ee_addr_size)); | |
1780 | ||
1781 | /* DEC now has a specification but early board makers | |
1782 | just put the address in the first EEPROM locations. */ | |
1783 | /* This does memcmp(eedata, eedata+16, 8) */ | |
bc053d45 RB |
1784 | |
1785 | #ifndef CONFIG_MIPS_COBALT | |
1786 | ||
1da177e4 LT |
1787 | for (i = 0; i < 8; i ++) |
1788 | if (ee_data[i] != ee_data[16+i]) | |
1789 | sa_offset = 20; | |
1790 | ||
bc053d45 RB |
1791 | #endif |
1792 | ||
1da177e4 LT |
1793 | /* store MAC address */ |
1794 | for (i = 0; i < 6; i ++) | |
1795 | de->dev->dev_addr[i] = ee_data[i + sa_offset]; | |
1796 | ||
1797 | /* get offset of controller 0 info leaf. ignore 2nd byte. */ | |
1798 | ofs = ee_data[SROMC0InfoLeaf]; | |
1799 | if (ofs >= (sizeof(ee_data) - sizeof(struct de_srom_info_leaf) - sizeof(struct de_srom_media_block))) | |
1800 | goto bad_srom; | |
1801 | ||
1802 | /* get pointer to info leaf */ | |
1803 | il = (struct de_srom_info_leaf *) &ee_data[ofs]; | |
1804 | ||
1805 | /* paranoia checks */ | |
1806 | if (il->n_blocks == 0) | |
1807 | goto bad_srom; | |
1808 | if ((sizeof(ee_data) - ofs) < | |
1809 | (sizeof(struct de_srom_info_leaf) + (sizeof(struct de_srom_media_block) * il->n_blocks))) | |
1810 | goto bad_srom; | |
1811 | ||
1812 | /* get default media type */ | |
1813 | switch (DE_UNALIGNED_16(&il->default_media)) { | |
1814 | case 0x0001: de->media_type = DE_MEDIA_BNC; break; | |
1815 | case 0x0002: de->media_type = DE_MEDIA_AUI; break; | |
1816 | case 0x0204: de->media_type = DE_MEDIA_TP_FD; break; | |
1817 | default: de->media_type = DE_MEDIA_TP_AUTO; break; | |
1818 | } | |
f3b197ac | 1819 | |
1da177e4 LT |
1820 | if (netif_msg_probe(de)) |
1821 | printk(KERN_INFO "de%d: SROM leaf offset %u, default media %s\n", | |
1822 | de->board_idx, ofs, | |
1823 | media_name[de->media_type]); | |
1824 | ||
1825 | /* init SIA register values to defaults */ | |
1826 | for (i = 0; i < DE_MAX_MEDIA; i++) { | |
1827 | de->media[i].type = DE_MEDIA_INVALID; | |
1828 | de->media[i].csr13 = 0xffff; | |
1829 | de->media[i].csr14 = 0xffff; | |
1830 | de->media[i].csr15 = 0xffff; | |
1831 | } | |
1832 | ||
1833 | /* parse media blocks to see what medias are supported, | |
1834 | * and if any custom CSR values are provided | |
1835 | */ | |
1836 | bufp = ((void *)il) + sizeof(*il); | |
1837 | for (i = 0; i < il->n_blocks; i++) { | |
1838 | struct de_srom_media_block *ib = bufp; | |
1839 | unsigned idx; | |
1840 | ||
1841 | /* index based on media type in media block */ | |
1842 | switch(ib->opts & MediaBlockMask) { | |
1843 | case 0: /* 10baseT */ | |
1844 | de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half | |
1845 | | SUPPORTED_Autoneg; | |
1846 | idx = DE_MEDIA_TP; | |
1847 | de->media[DE_MEDIA_TP_AUTO].type = DE_MEDIA_TP_AUTO; | |
1848 | break; | |
1849 | case 1: /* BNC */ | |
1850 | de->media_supported |= SUPPORTED_BNC; | |
1851 | idx = DE_MEDIA_BNC; | |
1852 | break; | |
1853 | case 2: /* AUI */ | |
1854 | de->media_supported |= SUPPORTED_AUI; | |
1855 | idx = DE_MEDIA_AUI; | |
1856 | break; | |
1857 | case 4: /* 10baseT-FD */ | |
1858 | de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Full | |
1859 | | SUPPORTED_Autoneg; | |
1860 | idx = DE_MEDIA_TP_FD; | |
1861 | de->media[DE_MEDIA_TP_AUTO].type = DE_MEDIA_TP_AUTO; | |
1862 | break; | |
1863 | default: | |
1864 | goto bad_srom; | |
1865 | } | |
1866 | ||
1867 | de->media[idx].type = idx; | |
1868 | ||
1869 | if (netif_msg_probe(de)) | |
1870 | printk(KERN_INFO "de%d: media block #%u: %s", | |
1871 | de->board_idx, i, | |
1872 | media_name[de->media[idx].type]); | |
1873 | ||
1874 | bufp += sizeof (ib->opts); | |
1875 | ||
1876 | if (ib->opts & MediaCustomCSRs) { | |
1877 | de->media[idx].csr13 = DE_UNALIGNED_16(&ib->csr13); | |
1878 | de->media[idx].csr14 = DE_UNALIGNED_16(&ib->csr14); | |
1879 | de->media[idx].csr15 = DE_UNALIGNED_16(&ib->csr15); | |
1880 | bufp += sizeof(ib->csr13) + sizeof(ib->csr14) + | |
1881 | sizeof(ib->csr15); | |
1882 | ||
1883 | if (netif_msg_probe(de)) | |
1884 | printk(" (%x,%x,%x)\n", | |
1885 | de->media[idx].csr13, | |
1886 | de->media[idx].csr14, | |
1887 | de->media[idx].csr15); | |
f3b197ac | 1888 | |
1da177e4 LT |
1889 | } else if (netif_msg_probe(de)) |
1890 | printk("\n"); | |
1891 | ||
1892 | if (bufp > ((void *)&ee_data[DE_EEPROM_SIZE - 3])) | |
1893 | break; | |
1894 | } | |
1895 | ||
1896 | de->media_advertise = de->media_supported; | |
1897 | ||
1898 | fill_defaults: | |
1899 | /* fill in defaults, for cases where custom CSRs not used */ | |
1900 | for (i = 0; i < DE_MAX_MEDIA; i++) { | |
1901 | if (de->media[i].csr13 == 0xffff) | |
1902 | de->media[i].csr13 = t21041_csr13[i]; | |
1903 | if (de->media[i].csr14 == 0xffff) | |
1904 | de->media[i].csr14 = t21041_csr14[i]; | |
1905 | if (de->media[i].csr15 == 0xffff) | |
1906 | de->media[i].csr15 = t21041_csr15[i]; | |
1907 | } | |
1908 | ||
1909 | de->ee_data = kmalloc(DE_EEPROM_SIZE, GFP_KERNEL); | |
1910 | if (de->ee_data) | |
1911 | memcpy(de->ee_data, &ee_data[0], DE_EEPROM_SIZE); | |
1912 | ||
1913 | return; | |
1914 | ||
1915 | bad_srom: | |
1916 | /* for error cases, it's ok to assume we support all these */ | |
1917 | for (i = 0; i < DE_MAX_MEDIA; i++) | |
1918 | de->media[i].type = i; | |
1919 | de->media_supported = | |
1920 | SUPPORTED_10baseT_Half | | |
1921 | SUPPORTED_10baseT_Full | | |
1922 | SUPPORTED_Autoneg | | |
1923 | SUPPORTED_TP | | |
1924 | SUPPORTED_AUI | | |
1925 | SUPPORTED_BNC; | |
1926 | goto fill_defaults; | |
1927 | } | |
1928 | ||
1929 | static int __init de_init_one (struct pci_dev *pdev, | |
1930 | const struct pci_device_id *ent) | |
1931 | { | |
1932 | struct net_device *dev; | |
1933 | struct de_private *de; | |
1934 | int rc; | |
1935 | void __iomem *regs; | |
afc7097f | 1936 | unsigned long pciaddr; |
1da177e4 LT |
1937 | static int board_idx = -1; |
1938 | ||
1939 | board_idx++; | |
1940 | ||
1941 | #ifndef MODULE | |
1942 | if (board_idx == 0) | |
1943 | printk("%s", version); | |
1944 | #endif | |
1945 | ||
1946 | /* allocate a new ethernet device structure, and fill in defaults */ | |
1947 | dev = alloc_etherdev(sizeof(struct de_private)); | |
1948 | if (!dev) | |
1949 | return -ENOMEM; | |
1950 | ||
1951 | SET_MODULE_OWNER(dev); | |
1952 | SET_NETDEV_DEV(dev, &pdev->dev); | |
1953 | dev->open = de_open; | |
1954 | dev->stop = de_close; | |
1955 | dev->set_multicast_list = de_set_rx_mode; | |
1956 | dev->hard_start_xmit = de_start_xmit; | |
1957 | dev->get_stats = de_get_stats; | |
1958 | dev->ethtool_ops = &de_ethtool_ops; | |
1959 | dev->tx_timeout = de_tx_timeout; | |
1960 | dev->watchdog_timeo = TX_TIMEOUT; | |
1961 | ||
1962 | de = dev->priv; | |
1963 | de->de21040 = ent->driver_data == 0 ? 1 : 0; | |
1964 | de->pdev = pdev; | |
1965 | de->dev = dev; | |
1966 | de->msg_enable = (debug < 0 ? DE_DEF_MSG_ENABLE : debug); | |
1967 | de->board_idx = board_idx; | |
1968 | spin_lock_init (&de->lock); | |
1969 | init_timer(&de->media_timer); | |
1970 | if (de->de21040) | |
1971 | de->media_timer.function = de21040_media_timer; | |
1972 | else | |
1973 | de->media_timer.function = de21041_media_timer; | |
1974 | de->media_timer.data = (unsigned long) de; | |
1975 | ||
1976 | netif_carrier_off(dev); | |
1977 | netif_stop_queue(dev); | |
1978 | ||
1979 | /* wake up device, assign resources */ | |
1980 | rc = pci_enable_device(pdev); | |
1981 | if (rc) | |
1982 | goto err_out_free; | |
1983 | ||
1984 | /* reserve PCI resources to ensure driver atomicity */ | |
1985 | rc = pci_request_regions(pdev, DRV_NAME); | |
1986 | if (rc) | |
1987 | goto err_out_disable; | |
1988 | ||
1989 | /* check for invalid IRQ value */ | |
1990 | if (pdev->irq < 2) { | |
1991 | rc = -EIO; | |
1992 | printk(KERN_ERR PFX "invalid irq (%d) for pci dev %s\n", | |
1993 | pdev->irq, pci_name(pdev)); | |
1994 | goto err_out_res; | |
1995 | } | |
1996 | ||
1997 | dev->irq = pdev->irq; | |
1998 | ||
1999 | /* obtain and check validity of PCI I/O address */ | |
2000 | pciaddr = pci_resource_start(pdev, 1); | |
2001 | if (!pciaddr) { | |
2002 | rc = -EIO; | |
2003 | printk(KERN_ERR PFX "no MMIO resource for pci dev %s\n", | |
2004 | pci_name(pdev)); | |
2005 | goto err_out_res; | |
2006 | } | |
2007 | if (pci_resource_len(pdev, 1) < DE_REGS_SIZE) { | |
2008 | rc = -EIO; | |
7c7459d1 GKH |
2009 | printk(KERN_ERR PFX "MMIO resource (%llx) too small on pci dev %s\n", |
2010 | (unsigned long long)pci_resource_len(pdev, 1), pci_name(pdev)); | |
1da177e4 LT |
2011 | goto err_out_res; |
2012 | } | |
2013 | ||
2014 | /* remap CSR registers */ | |
2015 | regs = ioremap_nocache(pciaddr, DE_REGS_SIZE); | |
2016 | if (!regs) { | |
2017 | rc = -EIO; | |
7c7459d1 GKH |
2018 | printk(KERN_ERR PFX "Cannot map PCI MMIO (%llx@%lx) on pci dev %s\n", |
2019 | (unsigned long long)pci_resource_len(pdev, 1), | |
2020 | pciaddr, pci_name(pdev)); | |
1da177e4 LT |
2021 | goto err_out_res; |
2022 | } | |
2023 | dev->base_addr = (unsigned long) regs; | |
2024 | de->regs = regs; | |
2025 | ||
2026 | de_adapter_wake(de); | |
2027 | ||
2028 | /* make sure hardware is not running */ | |
2029 | rc = de_reset_mac(de); | |
2030 | if (rc) { | |
2031 | printk(KERN_ERR PFX "Cannot reset MAC, pci dev %s\n", | |
2032 | pci_name(pdev)); | |
2033 | goto err_out_iomap; | |
2034 | } | |
2035 | ||
2036 | /* get MAC address, initialize default media type and | |
2037 | * get list of supported media | |
2038 | */ | |
2039 | if (de->de21040) { | |
2040 | de21040_get_mac_address(de); | |
2041 | de21040_get_media_info(de); | |
2042 | } else { | |
2043 | de21041_get_srom_info(de); | |
2044 | } | |
2045 | ||
2046 | /* register new network interface with kernel */ | |
2047 | rc = register_netdev(dev); | |
2048 | if (rc) | |
2049 | goto err_out_iomap; | |
2050 | ||
2051 | /* print info about board and interface just registered */ | |
2052 | printk (KERN_INFO "%s: %s at 0x%lx, " | |
2053 | "%02x:%02x:%02x:%02x:%02x:%02x, " | |
2054 | "IRQ %d\n", | |
2055 | dev->name, | |
2056 | de->de21040 ? "21040" : "21041", | |
2057 | dev->base_addr, | |
2058 | dev->dev_addr[0], dev->dev_addr[1], | |
2059 | dev->dev_addr[2], dev->dev_addr[3], | |
2060 | dev->dev_addr[4], dev->dev_addr[5], | |
2061 | dev->irq); | |
2062 | ||
2063 | pci_set_drvdata(pdev, dev); | |
2064 | ||
2065 | /* enable busmastering */ | |
2066 | pci_set_master(pdev); | |
2067 | ||
2068 | /* put adapter to sleep */ | |
2069 | de_adapter_sleep(de); | |
2070 | ||
2071 | return 0; | |
2072 | ||
2073 | err_out_iomap: | |
b4558ea9 | 2074 | kfree(de->ee_data); |
1da177e4 LT |
2075 | iounmap(regs); |
2076 | err_out_res: | |
2077 | pci_release_regions(pdev); | |
2078 | err_out_disable: | |
2079 | pci_disable_device(pdev); | |
2080 | err_out_free: | |
2081 | free_netdev(dev); | |
2082 | return rc; | |
2083 | } | |
2084 | ||
2085 | static void __exit de_remove_one (struct pci_dev *pdev) | |
2086 | { | |
2087 | struct net_device *dev = pci_get_drvdata(pdev); | |
2088 | struct de_private *de = dev->priv; | |
2089 | ||
7e0b58f3 | 2090 | BUG_ON(!dev); |
1da177e4 | 2091 | unregister_netdev(dev); |
b4558ea9 | 2092 | kfree(de->ee_data); |
1da177e4 LT |
2093 | iounmap(de->regs); |
2094 | pci_release_regions(pdev); | |
2095 | pci_disable_device(pdev); | |
2096 | pci_set_drvdata(pdev, NULL); | |
2097 | free_netdev(dev); | |
2098 | } | |
2099 | ||
2100 | #ifdef CONFIG_PM | |
2101 | ||
05adc3b7 | 2102 | static int de_suspend (struct pci_dev *pdev, pm_message_t state) |
1da177e4 LT |
2103 | { |
2104 | struct net_device *dev = pci_get_drvdata (pdev); | |
2105 | struct de_private *de = dev->priv; | |
2106 | ||
2107 | rtnl_lock(); | |
2108 | if (netif_running (dev)) { | |
2109 | del_timer_sync(&de->media_timer); | |
2110 | ||
2111 | disable_irq(dev->irq); | |
2112 | spin_lock_irq(&de->lock); | |
2113 | ||
2114 | de_stop_hw(de); | |
2115 | netif_stop_queue(dev); | |
2116 | netif_device_detach(dev); | |
2117 | netif_carrier_off(dev); | |
2118 | ||
2119 | spin_unlock_irq(&de->lock); | |
2120 | enable_irq(dev->irq); | |
f3b197ac | 2121 | |
1da177e4 LT |
2122 | /* Update the error counts. */ |
2123 | __de_get_stats(de); | |
2124 | ||
2125 | synchronize_irq(dev->irq); | |
2126 | de_clean_rings(de); | |
2127 | ||
2128 | de_adapter_sleep(de); | |
2129 | pci_disable_device(pdev); | |
2130 | } else { | |
2131 | netif_device_detach(dev); | |
2132 | } | |
2133 | rtnl_unlock(); | |
2134 | return 0; | |
2135 | } | |
2136 | ||
2137 | static int de_resume (struct pci_dev *pdev) | |
2138 | { | |
2139 | struct net_device *dev = pci_get_drvdata (pdev); | |
2140 | struct de_private *de = dev->priv; | |
2141 | ||
2142 | rtnl_lock(); | |
2143 | if (netif_device_present(dev)) | |
2144 | goto out; | |
2145 | if (netif_running(dev)) { | |
2146 | pci_enable_device(pdev); | |
2147 | de_init_hw(de); | |
2148 | netif_device_attach(dev); | |
2149 | } else { | |
2150 | netif_device_attach(dev); | |
2151 | } | |
2152 | out: | |
2153 | rtnl_unlock(); | |
2154 | return 0; | |
2155 | } | |
2156 | ||
2157 | #endif /* CONFIG_PM */ | |
2158 | ||
2159 | static struct pci_driver de_driver = { | |
2160 | .name = DRV_NAME, | |
2161 | .id_table = de_pci_tbl, | |
2162 | .probe = de_init_one, | |
2163 | .remove = __exit_p(de_remove_one), | |
2164 | #ifdef CONFIG_PM | |
2165 | .suspend = de_suspend, | |
2166 | .resume = de_resume, | |
2167 | #endif | |
2168 | }; | |
2169 | ||
2170 | static int __init de_init (void) | |
2171 | { | |
2172 | #ifdef MODULE | |
2173 | printk("%s", version); | |
2174 | #endif | |
2175 | return pci_module_init (&de_driver); | |
2176 | } | |
2177 | ||
2178 | static void __exit de_exit (void) | |
2179 | { | |
2180 | pci_unregister_driver (&de_driver); | |
2181 | } | |
2182 | ||
2183 | module_init(de_init); | |
2184 | module_exit(de_exit); |