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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__) \ | |
49345103 | 66 | || defined(CONFIG_SPARC) || defined(__ia64__) \ |
1da177e4 LT |
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 | ||
1da177e4 LT |
127 | /* This is a mysterious value that can be written to CSR11 in the 21040 (only) |
128 | to support a pre-NWay full-duplex signaling mechanism using short frames. | |
129 | No one knows what it should be, but if left at its default value some | |
130 | 10base2(!) packets trigger a full-duplex-request interrupt. */ | |
131 | #define FULL_DUPLEX_MAGIC 0x6969 | |
132 | ||
133 | enum { | |
134 | /* NIC registers */ | |
135 | BusMode = 0x00, | |
136 | TxPoll = 0x08, | |
137 | RxPoll = 0x10, | |
138 | RxRingAddr = 0x18, | |
139 | TxRingAddr = 0x20, | |
140 | MacStatus = 0x28, | |
141 | MacMode = 0x30, | |
142 | IntrMask = 0x38, | |
143 | RxMissed = 0x40, | |
144 | ROMCmd = 0x48, | |
145 | CSR11 = 0x58, | |
146 | SIAStatus = 0x60, | |
147 | CSR13 = 0x68, | |
148 | CSR14 = 0x70, | |
149 | CSR15 = 0x78, | |
150 | PCIPM = 0x40, | |
151 | ||
152 | /* BusMode bits */ | |
153 | CmdReset = (1 << 0), | |
154 | CacheAlign16 = 0x00008000, | |
155 | BurstLen4 = 0x00000400, | |
156 | ||
157 | /* Rx/TxPoll bits */ | |
158 | NormalTxPoll = (1 << 0), | |
159 | NormalRxPoll = (1 << 0), | |
160 | ||
161 | /* Tx/Rx descriptor status bits */ | |
162 | DescOwn = (1 << 31), | |
163 | RxError = (1 << 15), | |
164 | RxErrLong = (1 << 7), | |
165 | RxErrCRC = (1 << 1), | |
166 | RxErrFIFO = (1 << 0), | |
167 | RxErrRunt = (1 << 11), | |
168 | RxErrFrame = (1 << 14), | |
169 | RingEnd = (1 << 25), | |
170 | FirstFrag = (1 << 29), | |
171 | LastFrag = (1 << 30), | |
172 | TxError = (1 << 15), | |
173 | TxFIFOUnder = (1 << 1), | |
174 | TxLinkFail = (1 << 2) | (1 << 10) | (1 << 11), | |
175 | TxMaxCol = (1 << 8), | |
176 | TxOWC = (1 << 9), | |
177 | TxJabber = (1 << 14), | |
178 | SetupFrame = (1 << 27), | |
179 | TxSwInt = (1 << 31), | |
180 | ||
181 | /* MacStatus bits */ | |
182 | IntrOK = (1 << 16), | |
183 | IntrErr = (1 << 15), | |
184 | RxIntr = (1 << 6), | |
185 | RxEmpty = (1 << 7), | |
186 | TxIntr = (1 << 0), | |
187 | TxEmpty = (1 << 2), | |
188 | PciErr = (1 << 13), | |
189 | TxState = (1 << 22) | (1 << 21) | (1 << 20), | |
190 | RxState = (1 << 19) | (1 << 18) | (1 << 17), | |
191 | LinkFail = (1 << 12), | |
192 | LinkPass = (1 << 4), | |
193 | RxStopped = (1 << 8), | |
194 | TxStopped = (1 << 1), | |
195 | ||
196 | /* MacMode bits */ | |
197 | TxEnable = (1 << 13), | |
198 | RxEnable = (1 << 1), | |
199 | RxTx = TxEnable | RxEnable, | |
200 | FullDuplex = (1 << 9), | |
201 | AcceptAllMulticast = (1 << 7), | |
202 | AcceptAllPhys = (1 << 6), | |
203 | BOCnt = (1 << 5), | |
204 | MacModeClear = (1<<12) | (1<<11) | (1<<10) | (1<<8) | (1<<3) | | |
205 | RxTx | BOCnt | AcceptAllPhys | AcceptAllMulticast, | |
206 | ||
207 | /* ROMCmd bits */ | |
208 | EE_SHIFT_CLK = 0x02, /* EEPROM shift clock. */ | |
209 | EE_CS = 0x01, /* EEPROM chip select. */ | |
210 | EE_DATA_WRITE = 0x04, /* Data from the Tulip to EEPROM. */ | |
211 | EE_WRITE_0 = 0x01, | |
212 | EE_WRITE_1 = 0x05, | |
213 | EE_DATA_READ = 0x08, /* Data from the EEPROM chip. */ | |
214 | EE_ENB = (0x4800 | EE_CS), | |
215 | ||
216 | /* The EEPROM commands include the alway-set leading bit. */ | |
217 | EE_READ_CMD = 6, | |
218 | ||
219 | /* RxMissed bits */ | |
220 | RxMissedOver = (1 << 16), | |
221 | RxMissedMask = 0xffff, | |
222 | ||
223 | /* SROM-related bits */ | |
224 | SROMC0InfoLeaf = 27, | |
225 | MediaBlockMask = 0x3f, | |
226 | MediaCustomCSRs = (1 << 6), | |
f3b197ac | 227 | |
1da177e4 LT |
228 | /* PCIPM bits */ |
229 | PM_Sleep = (1 << 31), | |
230 | PM_Snooze = (1 << 30), | |
231 | PM_Mask = PM_Sleep | PM_Snooze, | |
f3b197ac | 232 | |
1da177e4 LT |
233 | /* SIAStatus bits */ |
234 | NWayState = (1 << 14) | (1 << 13) | (1 << 12), | |
235 | NWayRestart = (1 << 12), | |
236 | NonselPortActive = (1 << 9), | |
237 | LinkFailStatus = (1 << 2), | |
238 | NetCxnErr = (1 << 1), | |
239 | }; | |
240 | ||
241 | static const u32 de_intr_mask = | |
242 | IntrOK | IntrErr | RxIntr | RxEmpty | TxIntr | TxEmpty | | |
243 | LinkPass | LinkFail | PciErr; | |
244 | ||
245 | /* | |
246 | * Set the programmable burst length to 4 longwords for all: | |
247 | * DMA errors result without these values. Cache align 16 long. | |
248 | */ | |
249 | static const u32 de_bus_mode = CacheAlign16 | BurstLen4; | |
250 | ||
251 | struct de_srom_media_block { | |
252 | u8 opts; | |
253 | u16 csr13; | |
254 | u16 csr14; | |
255 | u16 csr15; | |
256 | } __attribute__((packed)); | |
257 | ||
258 | struct de_srom_info_leaf { | |
259 | u16 default_media; | |
260 | u8 n_blocks; | |
261 | u8 unused; | |
262 | } __attribute__((packed)); | |
263 | ||
264 | struct de_desc { | |
c559a5bc AV |
265 | __le32 opts1; |
266 | __le32 opts2; | |
267 | __le32 addr1; | |
268 | __le32 addr2; | |
1da177e4 LT |
269 | }; |
270 | ||
271 | struct media_info { | |
272 | u16 type; /* DE_MEDIA_xxx */ | |
273 | u16 csr13; | |
274 | u16 csr14; | |
275 | u16 csr15; | |
276 | }; | |
277 | ||
278 | struct ring_info { | |
279 | struct sk_buff *skb; | |
280 | dma_addr_t mapping; | |
281 | }; | |
282 | ||
283 | struct de_private { | |
284 | unsigned tx_head; | |
285 | unsigned tx_tail; | |
286 | unsigned rx_tail; | |
287 | ||
288 | void __iomem *regs; | |
289 | struct net_device *dev; | |
290 | spinlock_t lock; | |
291 | ||
292 | struct de_desc *rx_ring; | |
293 | struct de_desc *tx_ring; | |
294 | struct ring_info tx_skb[DE_TX_RING_SIZE]; | |
295 | struct ring_info rx_skb[DE_RX_RING_SIZE]; | |
296 | unsigned rx_buf_sz; | |
297 | dma_addr_t ring_dma; | |
298 | ||
299 | u32 msg_enable; | |
300 | ||
301 | struct net_device_stats net_stats; | |
302 | ||
303 | struct pci_dev *pdev; | |
304 | ||
305 | u16 setup_frame[DE_SETUP_FRAME_WORDS]; | |
306 | ||
307 | u32 media_type; | |
308 | u32 media_supported; | |
309 | u32 media_advertise; | |
310 | struct media_info media[DE_MAX_MEDIA]; | |
311 | struct timer_list media_timer; | |
312 | ||
313 | u8 *ee_data; | |
314 | unsigned board_idx; | |
315 | unsigned de21040 : 1; | |
316 | unsigned media_lock : 1; | |
317 | }; | |
318 | ||
319 | ||
320 | static void de_set_rx_mode (struct net_device *dev); | |
321 | static void de_tx (struct de_private *de); | |
322 | static void de_clean_rings (struct de_private *de); | |
323 | static void de_media_interrupt (struct de_private *de, u32 status); | |
324 | static void de21040_media_timer (unsigned long data); | |
325 | static void de21041_media_timer (unsigned long data); | |
326 | static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media); | |
327 | ||
328 | ||
329 | static struct pci_device_id de_pci_tbl[] = { | |
330 | { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP, | |
331 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
332 | { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_PLUS, | |
333 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 }, | |
334 | { }, | |
335 | }; | |
336 | MODULE_DEVICE_TABLE(pci, de_pci_tbl); | |
337 | ||
338 | static const char * const media_name[DE_MAX_MEDIA] = { | |
339 | "10baseT auto", | |
340 | "BNC", | |
341 | "AUI", | |
342 | "10baseT-HD", | |
343 | "10baseT-FD" | |
344 | }; | |
345 | ||
346 | /* 21040 transceiver register settings: | |
347 | * TP AUTO(unused), BNC(unused), AUI, TP, TP FD*/ | |
348 | static u16 t21040_csr13[] = { 0, 0, 0x8F09, 0x8F01, 0x8F01, }; | |
349 | static u16 t21040_csr14[] = { 0, 0, 0x0705, 0xFFFF, 0xFFFD, }; | |
350 | static u16 t21040_csr15[] = { 0, 0, 0x0006, 0x0000, 0x0000, }; | |
351 | ||
352 | /* 21041 transceiver register settings: TP AUTO, BNC, AUI, TP, TP FD*/ | |
353 | static u16 t21041_csr13[] = { 0xEF01, 0xEF09, 0xEF09, 0xEF01, 0xEF09, }; | |
354 | static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x6F3F, 0x6F3D, }; | |
355 | static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, }; | |
356 | ||
357 | ||
358 | #define dr32(reg) readl(de->regs + (reg)) | |
359 | #define dw32(reg,val) writel((val), de->regs + (reg)) | |
360 | ||
361 | ||
362 | static void de_rx_err_acct (struct de_private *de, unsigned rx_tail, | |
363 | u32 status, u32 len) | |
364 | { | |
365 | if (netif_msg_rx_err (de)) | |
366 | printk (KERN_DEBUG | |
367 | "%s: rx err, slot %d status 0x%x len %d\n", | |
368 | de->dev->name, rx_tail, status, len); | |
369 | ||
370 | if ((status & 0x38000300) != 0x0300) { | |
371 | /* Ingore earlier buffers. */ | |
372 | if ((status & 0xffff) != 0x7fff) { | |
373 | if (netif_msg_rx_err(de)) | |
374 | printk(KERN_WARNING "%s: Oversized Ethernet frame " | |
375 | "spanned multiple buffers, status %8.8x!\n", | |
376 | de->dev->name, status); | |
377 | de->net_stats.rx_length_errors++; | |
378 | } | |
379 | } else if (status & RxError) { | |
380 | /* There was a fatal error. */ | |
381 | de->net_stats.rx_errors++; /* end of a packet.*/ | |
382 | if (status & 0x0890) de->net_stats.rx_length_errors++; | |
383 | if (status & RxErrCRC) de->net_stats.rx_crc_errors++; | |
384 | if (status & RxErrFIFO) de->net_stats.rx_fifo_errors++; | |
385 | } | |
386 | } | |
387 | ||
388 | static void de_rx (struct de_private *de) | |
389 | { | |
390 | unsigned rx_tail = de->rx_tail; | |
391 | unsigned rx_work = DE_RX_RING_SIZE; | |
392 | unsigned drop = 0; | |
393 | int rc; | |
394 | ||
395 | while (rx_work--) { | |
396 | u32 status, len; | |
397 | dma_addr_t mapping; | |
398 | struct sk_buff *skb, *copy_skb; | |
399 | unsigned copying_skb, buflen; | |
400 | ||
401 | skb = de->rx_skb[rx_tail].skb; | |
7e0b58f3 | 402 | BUG_ON(!skb); |
1da177e4 LT |
403 | rmb(); |
404 | status = le32_to_cpu(de->rx_ring[rx_tail].opts1); | |
405 | if (status & DescOwn) | |
406 | break; | |
407 | ||
408 | len = ((status >> 16) & 0x7ff) - 4; | |
409 | mapping = de->rx_skb[rx_tail].mapping; | |
410 | ||
411 | if (unlikely(drop)) { | |
412 | de->net_stats.rx_dropped++; | |
413 | goto rx_next; | |
414 | } | |
415 | ||
416 | if (unlikely((status & 0x38008300) != 0x0300)) { | |
417 | de_rx_err_acct(de, rx_tail, status, len); | |
418 | goto rx_next; | |
419 | } | |
420 | ||
421 | copying_skb = (len <= rx_copybreak); | |
422 | ||
423 | if (unlikely(netif_msg_rx_status(de))) | |
424 | printk(KERN_DEBUG "%s: rx slot %d status 0x%x len %d copying? %d\n", | |
425 | de->dev->name, rx_tail, status, len, | |
426 | copying_skb); | |
427 | ||
428 | buflen = copying_skb ? (len + RX_OFFSET) : de->rx_buf_sz; | |
429 | copy_skb = dev_alloc_skb (buflen); | |
430 | if (unlikely(!copy_skb)) { | |
431 | de->net_stats.rx_dropped++; | |
432 | drop = 1; | |
433 | rx_work = 100; | |
434 | goto rx_next; | |
435 | } | |
1da177e4 LT |
436 | |
437 | if (!copying_skb) { | |
438 | pci_unmap_single(de->pdev, mapping, | |
439 | buflen, PCI_DMA_FROMDEVICE); | |
440 | skb_put(skb, len); | |
441 | ||
442 | mapping = | |
443 | de->rx_skb[rx_tail].mapping = | |
689be439 | 444 | pci_map_single(de->pdev, copy_skb->data, |
1da177e4 LT |
445 | buflen, PCI_DMA_FROMDEVICE); |
446 | de->rx_skb[rx_tail].skb = copy_skb; | |
447 | } else { | |
448 | pci_dma_sync_single_for_cpu(de->pdev, mapping, len, PCI_DMA_FROMDEVICE); | |
449 | skb_reserve(copy_skb, RX_OFFSET); | |
d626f62b ACM |
450 | skb_copy_from_linear_data(skb, skb_put(copy_skb, len), |
451 | len); | |
1da177e4 LT |
452 | pci_dma_sync_single_for_device(de->pdev, mapping, len, PCI_DMA_FROMDEVICE); |
453 | ||
454 | /* We'll reuse the original ring buffer. */ | |
455 | skb = copy_skb; | |
456 | } | |
457 | ||
458 | skb->protocol = eth_type_trans (skb, de->dev); | |
459 | ||
460 | de->net_stats.rx_packets++; | |
461 | de->net_stats.rx_bytes += skb->len; | |
462 | de->dev->last_rx = jiffies; | |
463 | rc = netif_rx (skb); | |
464 | if (rc == NET_RX_DROP) | |
465 | drop = 1; | |
466 | ||
467 | rx_next: | |
468 | de->rx_ring[rx_tail].opts1 = cpu_to_le32(DescOwn); | |
469 | if (rx_tail == (DE_RX_RING_SIZE - 1)) | |
470 | de->rx_ring[rx_tail].opts2 = | |
471 | cpu_to_le32(RingEnd | de->rx_buf_sz); | |
472 | else | |
473 | de->rx_ring[rx_tail].opts2 = cpu_to_le32(de->rx_buf_sz); | |
474 | de->rx_ring[rx_tail].addr1 = cpu_to_le32(mapping); | |
475 | rx_tail = NEXT_RX(rx_tail); | |
476 | } | |
477 | ||
478 | if (!rx_work) | |
479 | printk(KERN_WARNING "%s: rx work limit reached\n", de->dev->name); | |
480 | ||
481 | de->rx_tail = rx_tail; | |
482 | } | |
483 | ||
7d12e780 | 484 | static irqreturn_t de_interrupt (int irq, void *dev_instance) |
1da177e4 LT |
485 | { |
486 | struct net_device *dev = dev_instance; | |
487 | struct de_private *de = dev->priv; | |
488 | u32 status; | |
489 | ||
490 | status = dr32(MacStatus); | |
491 | if ((!(status & (IntrOK|IntrErr))) || (status == 0xFFFF)) | |
492 | return IRQ_NONE; | |
493 | ||
494 | if (netif_msg_intr(de)) | |
495 | printk(KERN_DEBUG "%s: intr, status %08x mode %08x desc %u/%u/%u\n", | |
496 | dev->name, status, dr32(MacMode), de->rx_tail, de->tx_head, de->tx_tail); | |
497 | ||
498 | dw32(MacStatus, status); | |
499 | ||
500 | if (status & (RxIntr | RxEmpty)) { | |
501 | de_rx(de); | |
502 | if (status & RxEmpty) | |
503 | dw32(RxPoll, NormalRxPoll); | |
504 | } | |
505 | ||
506 | spin_lock(&de->lock); | |
507 | ||
508 | if (status & (TxIntr | TxEmpty)) | |
509 | de_tx(de); | |
510 | ||
511 | if (status & (LinkPass | LinkFail)) | |
512 | de_media_interrupt(de, status); | |
513 | ||
514 | spin_unlock(&de->lock); | |
515 | ||
516 | if (status & PciErr) { | |
517 | u16 pci_status; | |
518 | ||
519 | pci_read_config_word(de->pdev, PCI_STATUS, &pci_status); | |
520 | pci_write_config_word(de->pdev, PCI_STATUS, pci_status); | |
521 | printk(KERN_ERR "%s: PCI bus error, status=%08x, PCI status=%04x\n", | |
522 | dev->name, status, pci_status); | |
523 | } | |
524 | ||
525 | return IRQ_HANDLED; | |
526 | } | |
527 | ||
528 | static void de_tx (struct de_private *de) | |
529 | { | |
530 | unsigned tx_head = de->tx_head; | |
531 | unsigned tx_tail = de->tx_tail; | |
532 | ||
533 | while (tx_tail != tx_head) { | |
534 | struct sk_buff *skb; | |
535 | u32 status; | |
536 | ||
537 | rmb(); | |
538 | status = le32_to_cpu(de->tx_ring[tx_tail].opts1); | |
539 | if (status & DescOwn) | |
540 | break; | |
541 | ||
542 | skb = de->tx_skb[tx_tail].skb; | |
7e0b58f3 | 543 | BUG_ON(!skb); |
1da177e4 LT |
544 | if (unlikely(skb == DE_DUMMY_SKB)) |
545 | goto next; | |
546 | ||
547 | if (unlikely(skb == DE_SETUP_SKB)) { | |
548 | pci_unmap_single(de->pdev, de->tx_skb[tx_tail].mapping, | |
549 | sizeof(de->setup_frame), PCI_DMA_TODEVICE); | |
550 | goto next; | |
551 | } | |
552 | ||
553 | pci_unmap_single(de->pdev, de->tx_skb[tx_tail].mapping, | |
554 | skb->len, PCI_DMA_TODEVICE); | |
555 | ||
556 | if (status & LastFrag) { | |
557 | if (status & TxError) { | |
558 | if (netif_msg_tx_err(de)) | |
559 | printk(KERN_DEBUG "%s: tx err, status 0x%x\n", | |
560 | de->dev->name, status); | |
561 | de->net_stats.tx_errors++; | |
562 | if (status & TxOWC) | |
563 | de->net_stats.tx_window_errors++; | |
564 | if (status & TxMaxCol) | |
565 | de->net_stats.tx_aborted_errors++; | |
566 | if (status & TxLinkFail) | |
567 | de->net_stats.tx_carrier_errors++; | |
568 | if (status & TxFIFOUnder) | |
569 | de->net_stats.tx_fifo_errors++; | |
570 | } else { | |
571 | de->net_stats.tx_packets++; | |
572 | de->net_stats.tx_bytes += skb->len; | |
573 | if (netif_msg_tx_done(de)) | |
574 | printk(KERN_DEBUG "%s: tx done, slot %d\n", de->dev->name, tx_tail); | |
575 | } | |
576 | dev_kfree_skb_irq(skb); | |
577 | } | |
578 | ||
579 | next: | |
580 | de->tx_skb[tx_tail].skb = NULL; | |
581 | ||
582 | tx_tail = NEXT_TX(tx_tail); | |
583 | } | |
584 | ||
585 | de->tx_tail = tx_tail; | |
586 | ||
587 | if (netif_queue_stopped(de->dev) && (TX_BUFFS_AVAIL(de) > (DE_TX_RING_SIZE / 4))) | |
588 | netif_wake_queue(de->dev); | |
589 | } | |
590 | ||
591 | static int de_start_xmit (struct sk_buff *skb, struct net_device *dev) | |
592 | { | |
593 | struct de_private *de = dev->priv; | |
594 | unsigned int entry, tx_free; | |
595 | u32 mapping, len, flags = FirstFrag | LastFrag; | |
596 | struct de_desc *txd; | |
597 | ||
598 | spin_lock_irq(&de->lock); | |
599 | ||
600 | tx_free = TX_BUFFS_AVAIL(de); | |
601 | if (tx_free == 0) { | |
602 | netif_stop_queue(dev); | |
603 | spin_unlock_irq(&de->lock); | |
604 | return 1; | |
605 | } | |
606 | tx_free--; | |
607 | ||
608 | entry = de->tx_head; | |
609 | ||
610 | txd = &de->tx_ring[entry]; | |
611 | ||
612 | len = skb->len; | |
613 | mapping = pci_map_single(de->pdev, skb->data, len, PCI_DMA_TODEVICE); | |
614 | if (entry == (DE_TX_RING_SIZE - 1)) | |
615 | flags |= RingEnd; | |
616 | if (!tx_free || (tx_free == (DE_TX_RING_SIZE / 2))) | |
617 | flags |= TxSwInt; | |
618 | flags |= len; | |
619 | txd->opts2 = cpu_to_le32(flags); | |
620 | txd->addr1 = cpu_to_le32(mapping); | |
621 | ||
622 | de->tx_skb[entry].skb = skb; | |
623 | de->tx_skb[entry].mapping = mapping; | |
624 | wmb(); | |
625 | ||
626 | txd->opts1 = cpu_to_le32(DescOwn); | |
627 | wmb(); | |
628 | ||
629 | de->tx_head = NEXT_TX(entry); | |
630 | if (netif_msg_tx_queued(de)) | |
631 | printk(KERN_DEBUG "%s: tx queued, slot %d, skblen %d\n", | |
632 | dev->name, entry, skb->len); | |
633 | ||
634 | if (tx_free == 0) | |
635 | netif_stop_queue(dev); | |
636 | ||
637 | spin_unlock_irq(&de->lock); | |
638 | ||
639 | /* Trigger an immediate transmit demand. */ | |
640 | dw32(TxPoll, NormalTxPoll); | |
641 | dev->trans_start = jiffies; | |
642 | ||
643 | return 0; | |
644 | } | |
645 | ||
646 | /* Set or clear the multicast filter for this adaptor. | |
647 | Note that we only use exclusion around actually queueing the | |
648 | new frame, not around filling de->setup_frame. This is non-deterministic | |
649 | when re-entered but still correct. */ | |
650 | ||
651 | #undef set_bit_le | |
652 | #define set_bit_le(i,p) do { ((char *)(p))[(i)/8] |= (1<<((i)%8)); } while(0) | |
653 | ||
654 | static void build_setup_frame_hash(u16 *setup_frm, struct net_device *dev) | |
655 | { | |
656 | struct de_private *de = dev->priv; | |
657 | u16 hash_table[32]; | |
658 | struct dev_mc_list *mclist; | |
659 | int i; | |
660 | u16 *eaddrs; | |
661 | ||
662 | memset(hash_table, 0, sizeof(hash_table)); | |
663 | set_bit_le(255, hash_table); /* Broadcast entry */ | |
664 | /* This should work on big-endian machines as well. */ | |
665 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; | |
666 | i++, mclist = mclist->next) { | |
667 | int index = ether_crc_le(ETH_ALEN, mclist->dmi_addr) & 0x1ff; | |
668 | ||
669 | set_bit_le(index, hash_table); | |
670 | ||
671 | for (i = 0; i < 32; i++) { | |
672 | *setup_frm++ = hash_table[i]; | |
673 | *setup_frm++ = hash_table[i]; | |
674 | } | |
675 | setup_frm = &de->setup_frame[13*6]; | |
676 | } | |
677 | ||
678 | /* Fill the final entry with our physical address. */ | |
679 | eaddrs = (u16 *)dev->dev_addr; | |
680 | *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0]; | |
681 | *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1]; | |
682 | *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2]; | |
683 | } | |
684 | ||
685 | static void build_setup_frame_perfect(u16 *setup_frm, struct net_device *dev) | |
686 | { | |
687 | struct de_private *de = dev->priv; | |
688 | struct dev_mc_list *mclist; | |
689 | int i; | |
690 | u16 *eaddrs; | |
691 | ||
692 | /* We have <= 14 addresses so we can use the wonderful | |
693 | 16 address perfect filtering of the Tulip. */ | |
694 | for (i = 0, mclist = dev->mc_list; i < dev->mc_count; | |
695 | i++, mclist = mclist->next) { | |
696 | eaddrs = (u16 *)mclist->dmi_addr; | |
697 | *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; | |
698 | *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; | |
699 | *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; | |
700 | } | |
701 | /* Fill the unused entries with the broadcast address. */ | |
702 | memset(setup_frm, 0xff, (15-i)*12); | |
703 | setup_frm = &de->setup_frame[15*6]; | |
704 | ||
705 | /* Fill the final entry with our physical address. */ | |
706 | eaddrs = (u16 *)dev->dev_addr; | |
707 | *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0]; | |
708 | *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1]; | |
709 | *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2]; | |
710 | } | |
711 | ||
712 | ||
713 | static void __de_set_rx_mode (struct net_device *dev) | |
714 | { | |
715 | struct de_private *de = dev->priv; | |
716 | u32 macmode; | |
717 | unsigned int entry; | |
718 | u32 mapping; | |
719 | struct de_desc *txd; | |
720 | struct de_desc *dummy_txd = NULL; | |
721 | ||
722 | macmode = dr32(MacMode) & ~(AcceptAllMulticast | AcceptAllPhys); | |
723 | ||
724 | if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ | |
725 | macmode |= AcceptAllMulticast | AcceptAllPhys; | |
726 | goto out; | |
727 | } | |
728 | ||
729 | if ((dev->mc_count > 1000) || (dev->flags & IFF_ALLMULTI)) { | |
730 | /* Too many to filter well -- accept all multicasts. */ | |
731 | macmode |= AcceptAllMulticast; | |
732 | goto out; | |
733 | } | |
734 | ||
735 | /* Note that only the low-address shortword of setup_frame is valid! | |
736 | The values are doubled for big-endian architectures. */ | |
737 | if (dev->mc_count > 14) /* Must use a multicast hash table. */ | |
738 | build_setup_frame_hash (de->setup_frame, dev); | |
739 | else | |
740 | build_setup_frame_perfect (de->setup_frame, dev); | |
741 | ||
742 | /* | |
743 | * Now add this frame to the Tx list. | |
744 | */ | |
745 | ||
746 | entry = de->tx_head; | |
747 | ||
748 | /* Avoid a chip errata by prefixing a dummy entry. */ | |
749 | if (entry != 0) { | |
750 | de->tx_skb[entry].skb = DE_DUMMY_SKB; | |
751 | ||
752 | dummy_txd = &de->tx_ring[entry]; | |
753 | dummy_txd->opts2 = (entry == (DE_TX_RING_SIZE - 1)) ? | |
754 | cpu_to_le32(RingEnd) : 0; | |
755 | dummy_txd->addr1 = 0; | |
756 | ||
757 | /* Must set DescOwned later to avoid race with chip */ | |
758 | ||
759 | entry = NEXT_TX(entry); | |
760 | } | |
761 | ||
762 | de->tx_skb[entry].skb = DE_SETUP_SKB; | |
763 | de->tx_skb[entry].mapping = mapping = | |
764 | pci_map_single (de->pdev, de->setup_frame, | |
765 | sizeof (de->setup_frame), PCI_DMA_TODEVICE); | |
766 | ||
767 | /* Put the setup frame on the Tx list. */ | |
768 | txd = &de->tx_ring[entry]; | |
769 | if (entry == (DE_TX_RING_SIZE - 1)) | |
770 | txd->opts2 = cpu_to_le32(SetupFrame | RingEnd | sizeof (de->setup_frame)); | |
771 | else | |
772 | txd->opts2 = cpu_to_le32(SetupFrame | sizeof (de->setup_frame)); | |
773 | txd->addr1 = cpu_to_le32(mapping); | |
774 | wmb(); | |
775 | ||
776 | txd->opts1 = cpu_to_le32(DescOwn); | |
777 | wmb(); | |
778 | ||
779 | if (dummy_txd) { | |
780 | dummy_txd->opts1 = cpu_to_le32(DescOwn); | |
781 | wmb(); | |
782 | } | |
783 | ||
784 | de->tx_head = NEXT_TX(entry); | |
785 | ||
1da177e4 LT |
786 | if (TX_BUFFS_AVAIL(de) == 0) |
787 | netif_stop_queue(dev); | |
788 | ||
789 | /* Trigger an immediate transmit demand. */ | |
790 | dw32(TxPoll, NormalTxPoll); | |
791 | ||
792 | out: | |
793 | if (macmode != dr32(MacMode)) | |
794 | dw32(MacMode, macmode); | |
795 | } | |
796 | ||
797 | static void de_set_rx_mode (struct net_device *dev) | |
798 | { | |
799 | unsigned long flags; | |
800 | struct de_private *de = dev->priv; | |
801 | ||
802 | spin_lock_irqsave (&de->lock, flags); | |
803 | __de_set_rx_mode(dev); | |
804 | spin_unlock_irqrestore (&de->lock, flags); | |
805 | } | |
806 | ||
807 | static inline void de_rx_missed(struct de_private *de, u32 rx_missed) | |
808 | { | |
809 | if (unlikely(rx_missed & RxMissedOver)) | |
810 | de->net_stats.rx_missed_errors += RxMissedMask; | |
811 | else | |
812 | de->net_stats.rx_missed_errors += (rx_missed & RxMissedMask); | |
813 | } | |
814 | ||
815 | static void __de_get_stats(struct de_private *de) | |
816 | { | |
817 | u32 tmp = dr32(RxMissed); /* self-clearing */ | |
818 | ||
819 | de_rx_missed(de, tmp); | |
820 | } | |
821 | ||
822 | static struct net_device_stats *de_get_stats(struct net_device *dev) | |
823 | { | |
824 | struct de_private *de = dev->priv; | |
825 | ||
826 | /* The chip only need report frame silently dropped. */ | |
827 | spin_lock_irq(&de->lock); | |
828 | if (netif_running(dev) && netif_device_present(dev)) | |
829 | __de_get_stats(de); | |
830 | spin_unlock_irq(&de->lock); | |
831 | ||
832 | return &de->net_stats; | |
833 | } | |
834 | ||
835 | static inline int de_is_running (struct de_private *de) | |
836 | { | |
837 | return (dr32(MacStatus) & (RxState | TxState)) ? 1 : 0; | |
838 | } | |
839 | ||
840 | static void de_stop_rxtx (struct de_private *de) | |
841 | { | |
842 | u32 macmode; | |
69cac988 | 843 | unsigned int i = 1300/100; |
1da177e4 LT |
844 | |
845 | macmode = dr32(MacMode); | |
846 | if (macmode & RxTx) { | |
847 | dw32(MacMode, macmode & ~RxTx); | |
848 | dr32(MacMode); | |
849 | } | |
850 | ||
69cac988 GG |
851 | /* wait until in-flight frame completes. |
852 | * Max time @ 10BT: 1500*8b/10Mbps == 1200us (+ 100us margin) | |
853 | * Typically expect this loop to end in < 50 us on 100BT. | |
854 | */ | |
855 | while (--i) { | |
1da177e4 LT |
856 | if (!de_is_running(de)) |
857 | return; | |
69cac988 | 858 | udelay(100); |
1da177e4 | 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 | ||
f25f0f8d OZ |
915 | if (de_is_running(de)) |
916 | printk(KERN_WARNING "%s: chip is running while changing media!\n", de->dev->name); | |
1da177e4 LT |
917 | |
918 | if (de->de21040) | |
919 | dw32(CSR11, FULL_DUPLEX_MAGIC); | |
920 | dw32(CSR13, 0); /* Reset phy */ | |
921 | dw32(CSR14, de->media[media].csr14); | |
922 | dw32(CSR15, de->media[media].csr15); | |
923 | dw32(CSR13, de->media[media].csr13); | |
924 | ||
925 | /* must delay 10ms before writing to other registers, | |
926 | * especially CSR6 | |
927 | */ | |
928 | mdelay(10); | |
929 | ||
930 | if (media == DE_MEDIA_TP_FD) | |
931 | macmode |= FullDuplex; | |
932 | else | |
933 | macmode &= ~FullDuplex; | |
f3b197ac | 934 | |
1da177e4 LT |
935 | if (netif_msg_link(de)) { |
936 | printk(KERN_INFO "%s: set link %s\n" | |
937 | KERN_INFO "%s: mode 0x%x, sia 0x%x,0x%x,0x%x,0x%x\n" | |
938 | KERN_INFO "%s: set mode 0x%x, set sia 0x%x,0x%x,0x%x\n", | |
939 | de->dev->name, media_name[media], | |
940 | de->dev->name, dr32(MacMode), dr32(SIAStatus), | |
941 | dr32(CSR13), dr32(CSR14), dr32(CSR15), | |
942 | de->dev->name, macmode, de->media[media].csr13, | |
943 | de->media[media].csr14, de->media[media].csr15); | |
944 | } | |
945 | if (macmode != dr32(MacMode)) | |
946 | dw32(MacMode, macmode); | |
947 | } | |
948 | ||
949 | static void de_next_media (struct de_private *de, u32 *media, | |
950 | unsigned int n_media) | |
951 | { | |
952 | unsigned int i; | |
953 | ||
954 | for (i = 0; i < n_media; i++) { | |
955 | if (de_ok_to_advertise(de, media[i])) { | |
956 | de->media_type = media[i]; | |
957 | return; | |
958 | } | |
959 | } | |
960 | } | |
961 | ||
962 | static void de21040_media_timer (unsigned long data) | |
963 | { | |
964 | struct de_private *de = (struct de_private *) data; | |
965 | struct net_device *dev = de->dev; | |
966 | u32 status = dr32(SIAStatus); | |
967 | unsigned int carrier; | |
968 | unsigned long flags; | |
f3b197ac | 969 | |
1da177e4 | 970 | carrier = (status & NetCxnErr) ? 0 : 1; |
f3b197ac | 971 | |
1da177e4 LT |
972 | if (carrier) { |
973 | if (de->media_type != DE_MEDIA_AUI && (status & LinkFailStatus)) | |
974 | goto no_link_yet; | |
975 | ||
976 | de->media_timer.expires = jiffies + DE_TIMER_LINK; | |
977 | add_timer(&de->media_timer); | |
978 | if (!netif_carrier_ok(dev)) | |
979 | de_link_up(de); | |
980 | else | |
981 | if (netif_msg_timer(de)) | |
982 | printk(KERN_INFO "%s: %s link ok, status %x\n", | |
983 | dev->name, media_name[de->media_type], | |
984 | status); | |
985 | return; | |
986 | } | |
987 | ||
f3b197ac | 988 | de_link_down(de); |
1da177e4 LT |
989 | |
990 | if (de->media_lock) | |
991 | return; | |
992 | ||
993 | if (de->media_type == DE_MEDIA_AUI) { | |
994 | u32 next_state = DE_MEDIA_TP; | |
995 | de_next_media(de, &next_state, 1); | |
996 | } else { | |
997 | u32 next_state = DE_MEDIA_AUI; | |
998 | de_next_media(de, &next_state, 1); | |
999 | } | |
1000 | ||
1001 | spin_lock_irqsave(&de->lock, flags); | |
1002 | de_stop_rxtx(de); | |
1003 | spin_unlock_irqrestore(&de->lock, flags); | |
1004 | de_set_media(de); | |
1005 | de_start_rxtx(de); | |
1006 | ||
1007 | no_link_yet: | |
1008 | de->media_timer.expires = jiffies + DE_TIMER_NO_LINK; | |
1009 | add_timer(&de->media_timer); | |
1010 | ||
1011 | if (netif_msg_timer(de)) | |
1012 | printk(KERN_INFO "%s: no link, trying media %s, status %x\n", | |
1013 | dev->name, media_name[de->media_type], status); | |
1014 | } | |
1015 | ||
1016 | static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media) | |
1017 | { | |
1018 | switch (new_media) { | |
1019 | case DE_MEDIA_TP_AUTO: | |
1020 | if (!(de->media_advertise & ADVERTISED_Autoneg)) | |
1021 | return 0; | |
1022 | if (!(de->media_advertise & (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full))) | |
1023 | return 0; | |
1024 | break; | |
1025 | case DE_MEDIA_BNC: | |
1026 | if (!(de->media_advertise & ADVERTISED_BNC)) | |
1027 | return 0; | |
1028 | break; | |
1029 | case DE_MEDIA_AUI: | |
1030 | if (!(de->media_advertise & ADVERTISED_AUI)) | |
1031 | return 0; | |
1032 | break; | |
1033 | case DE_MEDIA_TP: | |
1034 | if (!(de->media_advertise & ADVERTISED_10baseT_Half)) | |
1035 | return 0; | |
1036 | break; | |
1037 | case DE_MEDIA_TP_FD: | |
1038 | if (!(de->media_advertise & ADVERTISED_10baseT_Full)) | |
1039 | return 0; | |
1040 | break; | |
1041 | } | |
f3b197ac | 1042 | |
1da177e4 LT |
1043 | return 1; |
1044 | } | |
1045 | ||
1046 | static void de21041_media_timer (unsigned long data) | |
1047 | { | |
1048 | struct de_private *de = (struct de_private *) data; | |
1049 | struct net_device *dev = de->dev; | |
1050 | u32 status = dr32(SIAStatus); | |
1051 | unsigned int carrier; | |
1052 | unsigned long flags; | |
f3b197ac | 1053 | |
1da177e4 | 1054 | carrier = (status & NetCxnErr) ? 0 : 1; |
f3b197ac | 1055 | |
1da177e4 LT |
1056 | if (carrier) { |
1057 | if ((de->media_type == DE_MEDIA_TP_AUTO || | |
1058 | de->media_type == DE_MEDIA_TP || | |
1059 | de->media_type == DE_MEDIA_TP_FD) && | |
1060 | (status & LinkFailStatus)) | |
1061 | goto no_link_yet; | |
1062 | ||
1063 | de->media_timer.expires = jiffies + DE_TIMER_LINK; | |
1064 | add_timer(&de->media_timer); | |
1065 | if (!netif_carrier_ok(dev)) | |
1066 | de_link_up(de); | |
1067 | else | |
1068 | if (netif_msg_timer(de)) | |
1069 | printk(KERN_INFO "%s: %s link ok, mode %x status %x\n", | |
1070 | dev->name, media_name[de->media_type], | |
1071 | dr32(MacMode), status); | |
1072 | return; | |
1073 | } | |
1074 | ||
f3b197ac | 1075 | de_link_down(de); |
1da177e4 LT |
1076 | |
1077 | /* if media type locked, don't switch media */ | |
1078 | if (de->media_lock) | |
1079 | goto set_media; | |
1080 | ||
1081 | /* if activity detected, use that as hint for new media type */ | |
1082 | if (status & NonselPortActive) { | |
1083 | unsigned int have_media = 1; | |
1084 | ||
1085 | /* if AUI/BNC selected, then activity is on TP port */ | |
1086 | if (de->media_type == DE_MEDIA_AUI || | |
1087 | de->media_type == DE_MEDIA_BNC) { | |
1088 | if (de_ok_to_advertise(de, DE_MEDIA_TP_AUTO)) | |
1089 | de->media_type = DE_MEDIA_TP_AUTO; | |
1090 | else | |
1091 | have_media = 0; | |
1092 | } | |
1093 | ||
1094 | /* TP selected. If there is only TP and BNC, then it's BNC */ | |
1095 | else if (((de->media_supported & DE_AUI_BNC) == SUPPORTED_BNC) && | |
1096 | de_ok_to_advertise(de, DE_MEDIA_BNC)) | |
1097 | de->media_type = DE_MEDIA_BNC; | |
1098 | ||
1099 | /* TP selected. If there is only TP and AUI, then it's AUI */ | |
1100 | else if (((de->media_supported & DE_AUI_BNC) == SUPPORTED_AUI) && | |
1101 | de_ok_to_advertise(de, DE_MEDIA_AUI)) | |
1102 | de->media_type = DE_MEDIA_AUI; | |
1103 | ||
1104 | /* otherwise, ignore the hint */ | |
1105 | else | |
1106 | have_media = 0; | |
1107 | ||
1108 | if (have_media) | |
1109 | goto set_media; | |
1110 | } | |
1111 | ||
1112 | /* | |
1113 | * Absent or ambiguous activity hint, move to next advertised | |
1114 | * media state. If de->media_type is left unchanged, this | |
1115 | * simply resets the PHY and reloads the current media settings. | |
1116 | */ | |
1117 | if (de->media_type == DE_MEDIA_AUI) { | |
1118 | u32 next_states[] = { DE_MEDIA_BNC, DE_MEDIA_TP_AUTO }; | |
1119 | de_next_media(de, next_states, ARRAY_SIZE(next_states)); | |
1120 | } else if (de->media_type == DE_MEDIA_BNC) { | |
1121 | u32 next_states[] = { DE_MEDIA_TP_AUTO, DE_MEDIA_AUI }; | |
1122 | de_next_media(de, next_states, ARRAY_SIZE(next_states)); | |
1123 | } else { | |
1124 | u32 next_states[] = { DE_MEDIA_AUI, DE_MEDIA_BNC, DE_MEDIA_TP_AUTO }; | |
1125 | de_next_media(de, next_states, ARRAY_SIZE(next_states)); | |
1126 | } | |
f3b197ac | 1127 | |
1da177e4 LT |
1128 | set_media: |
1129 | spin_lock_irqsave(&de->lock, flags); | |
1130 | de_stop_rxtx(de); | |
1131 | spin_unlock_irqrestore(&de->lock, flags); | |
1132 | de_set_media(de); | |
1133 | de_start_rxtx(de); | |
1134 | ||
1135 | no_link_yet: | |
1136 | de->media_timer.expires = jiffies + DE_TIMER_NO_LINK; | |
1137 | add_timer(&de->media_timer); | |
1138 | ||
1139 | if (netif_msg_timer(de)) | |
1140 | printk(KERN_INFO "%s: no link, trying media %s, status %x\n", | |
1141 | dev->name, media_name[de->media_type], status); | |
1142 | } | |
1143 | ||
1144 | static void de_media_interrupt (struct de_private *de, u32 status) | |
1145 | { | |
1146 | if (status & LinkPass) { | |
1147 | de_link_up(de); | |
1148 | mod_timer(&de->media_timer, jiffies + DE_TIMER_LINK); | |
1149 | return; | |
1150 | } | |
f3b197ac | 1151 | |
7e0b58f3 | 1152 | BUG_ON(!(status & LinkFail)); |
1da177e4 LT |
1153 | |
1154 | if (netif_carrier_ok(de->dev)) { | |
1155 | de_link_down(de); | |
1156 | mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK); | |
1157 | } | |
1158 | } | |
1159 | ||
1160 | static int de_reset_mac (struct de_private *de) | |
1161 | { | |
1162 | u32 status, tmp; | |
1163 | ||
1164 | /* | |
1165 | * Reset MAC. de4x5.c and tulip.c examined for "advice" | |
1166 | * in this area. | |
1167 | */ | |
1168 | ||
1169 | if (dr32(BusMode) == 0xffffffff) | |
1170 | return -EBUSY; | |
1171 | ||
1172 | /* Reset the chip, holding bit 0 set at least 50 PCI cycles. */ | |
1173 | dw32 (BusMode, CmdReset); | |
1174 | mdelay (1); | |
1175 | ||
1176 | dw32 (BusMode, de_bus_mode); | |
1177 | mdelay (1); | |
1178 | ||
1179 | for (tmp = 0; tmp < 5; tmp++) { | |
1180 | dr32 (BusMode); | |
1181 | mdelay (1); | |
1182 | } | |
1183 | ||
1184 | mdelay (1); | |
1185 | ||
1186 | status = dr32(MacStatus); | |
1187 | if (status & (RxState | TxState)) | |
1188 | return -EBUSY; | |
1189 | if (status == 0xffffffff) | |
1190 | return -ENODEV; | |
1191 | return 0; | |
1192 | } | |
1193 | ||
1194 | static void de_adapter_wake (struct de_private *de) | |
1195 | { | |
1196 | u32 pmctl; | |
1197 | ||
1198 | if (de->de21040) | |
1199 | return; | |
1200 | ||
1201 | pci_read_config_dword(de->pdev, PCIPM, &pmctl); | |
1202 | if (pmctl & PM_Mask) { | |
1203 | pmctl &= ~PM_Mask; | |
1204 | pci_write_config_dword(de->pdev, PCIPM, pmctl); | |
1205 | ||
1206 | /* de4x5.c delays, so we do too */ | |
1207 | msleep(10); | |
1208 | } | |
1209 | } | |
1210 | ||
1211 | static void de_adapter_sleep (struct de_private *de) | |
1212 | { | |
1213 | u32 pmctl; | |
1214 | ||
1215 | if (de->de21040) | |
1216 | return; | |
1217 | ||
1218 | pci_read_config_dword(de->pdev, PCIPM, &pmctl); | |
1219 | pmctl |= PM_Sleep; | |
1220 | pci_write_config_dword(de->pdev, PCIPM, pmctl); | |
1221 | } | |
1222 | ||
1223 | static int de_init_hw (struct de_private *de) | |
1224 | { | |
1225 | struct net_device *dev = de->dev; | |
1226 | u32 macmode; | |
1227 | int rc; | |
1228 | ||
1229 | de_adapter_wake(de); | |
f3b197ac | 1230 | |
1da177e4 LT |
1231 | macmode = dr32(MacMode) & ~MacModeClear; |
1232 | ||
1233 | rc = de_reset_mac(de); | |
1234 | if (rc) | |
1235 | return rc; | |
1236 | ||
1237 | de_set_media(de); /* reset phy */ | |
1238 | ||
1239 | dw32(RxRingAddr, de->ring_dma); | |
1240 | dw32(TxRingAddr, de->ring_dma + (sizeof(struct de_desc) * DE_RX_RING_SIZE)); | |
1241 | ||
1242 | dw32(MacMode, RxTx | macmode); | |
1243 | ||
1244 | dr32(RxMissed); /* self-clearing */ | |
1245 | ||
1246 | dw32(IntrMask, de_intr_mask); | |
1247 | ||
1248 | de_set_rx_mode(dev); | |
1249 | ||
1250 | return 0; | |
1251 | } | |
1252 | ||
1253 | static int de_refill_rx (struct de_private *de) | |
1254 | { | |
1255 | unsigned i; | |
1256 | ||
1257 | for (i = 0; i < DE_RX_RING_SIZE; i++) { | |
1258 | struct sk_buff *skb; | |
1259 | ||
1260 | skb = dev_alloc_skb(de->rx_buf_sz); | |
1261 | if (!skb) | |
1262 | goto err_out; | |
1263 | ||
1264 | skb->dev = de->dev; | |
1265 | ||
1266 | de->rx_skb[i].mapping = pci_map_single(de->pdev, | |
689be439 | 1267 | skb->data, de->rx_buf_sz, PCI_DMA_FROMDEVICE); |
1da177e4 LT |
1268 | de->rx_skb[i].skb = skb; |
1269 | ||
1270 | de->rx_ring[i].opts1 = cpu_to_le32(DescOwn); | |
1271 | if (i == (DE_RX_RING_SIZE - 1)) | |
1272 | de->rx_ring[i].opts2 = | |
1273 | cpu_to_le32(RingEnd | de->rx_buf_sz); | |
1274 | else | |
1275 | de->rx_ring[i].opts2 = cpu_to_le32(de->rx_buf_sz); | |
1276 | de->rx_ring[i].addr1 = cpu_to_le32(de->rx_skb[i].mapping); | |
1277 | de->rx_ring[i].addr2 = 0; | |
1278 | } | |
1279 | ||
1280 | return 0; | |
1281 | ||
1282 | err_out: | |
1283 | de_clean_rings(de); | |
1284 | return -ENOMEM; | |
1285 | } | |
1286 | ||
1287 | static int de_init_rings (struct de_private *de) | |
1288 | { | |
1289 | memset(de->tx_ring, 0, sizeof(struct de_desc) * DE_TX_RING_SIZE); | |
1290 | de->tx_ring[DE_TX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd); | |
1291 | ||
1292 | de->rx_tail = 0; | |
1293 | de->tx_head = de->tx_tail = 0; | |
1294 | ||
1295 | return de_refill_rx (de); | |
1296 | } | |
1297 | ||
1298 | static int de_alloc_rings (struct de_private *de) | |
1299 | { | |
1300 | de->rx_ring = pci_alloc_consistent(de->pdev, DE_RING_BYTES, &de->ring_dma); | |
1301 | if (!de->rx_ring) | |
1302 | return -ENOMEM; | |
1303 | de->tx_ring = &de->rx_ring[DE_RX_RING_SIZE]; | |
1304 | return de_init_rings(de); | |
1305 | } | |
1306 | ||
1307 | static void de_clean_rings (struct de_private *de) | |
1308 | { | |
1309 | unsigned i; | |
1310 | ||
1311 | memset(de->rx_ring, 0, sizeof(struct de_desc) * DE_RX_RING_SIZE); | |
1312 | de->rx_ring[DE_RX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd); | |
1313 | wmb(); | |
1314 | memset(de->tx_ring, 0, sizeof(struct de_desc) * DE_TX_RING_SIZE); | |
1315 | de->tx_ring[DE_TX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd); | |
1316 | wmb(); | |
1317 | ||
1318 | for (i = 0; i < DE_RX_RING_SIZE; i++) { | |
1319 | if (de->rx_skb[i].skb) { | |
1320 | pci_unmap_single(de->pdev, de->rx_skb[i].mapping, | |
1321 | de->rx_buf_sz, PCI_DMA_FROMDEVICE); | |
1322 | dev_kfree_skb(de->rx_skb[i].skb); | |
1323 | } | |
1324 | } | |
1325 | ||
1326 | for (i = 0; i < DE_TX_RING_SIZE; i++) { | |
1327 | struct sk_buff *skb = de->tx_skb[i].skb; | |
1328 | if ((skb) && (skb != DE_DUMMY_SKB)) { | |
1329 | if (skb != DE_SETUP_SKB) { | |
1da177e4 LT |
1330 | de->net_stats.tx_dropped++; |
1331 | pci_unmap_single(de->pdev, | |
1332 | de->tx_skb[i].mapping, | |
1333 | skb->len, PCI_DMA_TODEVICE); | |
5185c7c2 | 1334 | dev_kfree_skb(skb); |
1da177e4 LT |
1335 | } else { |
1336 | pci_unmap_single(de->pdev, | |
1337 | de->tx_skb[i].mapping, | |
1338 | sizeof(de->setup_frame), | |
1339 | PCI_DMA_TODEVICE); | |
1340 | } | |
1341 | } | |
1342 | } | |
1343 | ||
1344 | memset(&de->rx_skb, 0, sizeof(struct ring_info) * DE_RX_RING_SIZE); | |
1345 | memset(&de->tx_skb, 0, sizeof(struct ring_info) * DE_TX_RING_SIZE); | |
1346 | } | |
1347 | ||
1348 | static void de_free_rings (struct de_private *de) | |
1349 | { | |
1350 | de_clean_rings(de); | |
1351 | pci_free_consistent(de->pdev, DE_RING_BYTES, de->rx_ring, de->ring_dma); | |
1352 | de->rx_ring = NULL; | |
1353 | de->tx_ring = NULL; | |
1354 | } | |
1355 | ||
1356 | static int de_open (struct net_device *dev) | |
1357 | { | |
1358 | struct de_private *de = dev->priv; | |
1359 | int rc; | |
1da177e4 LT |
1360 | |
1361 | if (netif_msg_ifup(de)) | |
1362 | printk(KERN_DEBUG "%s: enabling interface\n", dev->name); | |
1363 | ||
1364 | de->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32); | |
1365 | ||
1366 | rc = de_alloc_rings(de); | |
1367 | if (rc) { | |
1368 | printk(KERN_ERR "%s: ring allocation failure, err=%d\n", | |
1369 | dev->name, rc); | |
1370 | return rc; | |
1371 | } | |
1372 | ||
3f735b76 | 1373 | dw32(IntrMask, 0); |
1da177e4 | 1374 | |
1fb9df5d | 1375 | rc = request_irq(dev->irq, de_interrupt, IRQF_SHARED, dev->name, dev); |
1da177e4 LT |
1376 | if (rc) { |
1377 | printk(KERN_ERR "%s: IRQ %d request failure, err=%d\n", | |
1378 | dev->name, dev->irq, rc); | |
3f735b76 FR |
1379 | goto err_out_free; |
1380 | } | |
1381 | ||
1382 | rc = de_init_hw(de); | |
1383 | if (rc) { | |
1384 | printk(KERN_ERR "%s: h/w init failure, err=%d\n", | |
1385 | dev->name, rc); | |
1386 | goto err_out_free_irq; | |
1da177e4 LT |
1387 | } |
1388 | ||
1389 | netif_start_queue(dev); | |
1390 | mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK); | |
1391 | ||
1392 | return 0; | |
1393 | ||
3f735b76 FR |
1394 | err_out_free_irq: |
1395 | free_irq(dev->irq, dev); | |
1da177e4 LT |
1396 | err_out_free: |
1397 | de_free_rings(de); | |
1398 | return rc; | |
1399 | } | |
1400 | ||
1401 | static int de_close (struct net_device *dev) | |
1402 | { | |
1403 | struct de_private *de = dev->priv; | |
1404 | unsigned long flags; | |
1405 | ||
1406 | if (netif_msg_ifdown(de)) | |
1407 | printk(KERN_DEBUG "%s: disabling interface\n", dev->name); | |
1408 | ||
1409 | del_timer_sync(&de->media_timer); | |
1410 | ||
1411 | spin_lock_irqsave(&de->lock, flags); | |
1412 | de_stop_hw(de); | |
1413 | netif_stop_queue(dev); | |
1414 | netif_carrier_off(dev); | |
1415 | spin_unlock_irqrestore(&de->lock, flags); | |
f3b197ac | 1416 | |
1da177e4 LT |
1417 | free_irq(dev->irq, dev); |
1418 | ||
1419 | de_free_rings(de); | |
1420 | de_adapter_sleep(de); | |
1da177e4 LT |
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 | ||
7282d491 | 1673 | static const struct ethtool_ops de_ethtool_ops = { |
1da177e4 | 1674 | .get_link = ethtool_op_get_link, |
1da177e4 LT |
1675 | .get_drvinfo = de_get_drvinfo, |
1676 | .get_regs_len = de_get_regs_len, | |
1677 | .get_settings = de_get_settings, | |
1678 | .set_settings = de_set_settings, | |
1679 | .get_msglevel = de_get_msglevel, | |
1680 | .set_msglevel = de_set_msglevel, | |
1681 | .get_eeprom = de_get_eeprom, | |
1682 | .nway_reset = de_nway_reset, | |
1683 | .get_regs = de_get_regs, | |
1684 | }; | |
1685 | ||
4c44fd00 | 1686 | static void __devinit de21040_get_mac_address (struct de_private *de) |
1da177e4 LT |
1687 | { |
1688 | unsigned i; | |
1689 | ||
1690 | dw32 (ROMCmd, 0); /* Reset the pointer with a dummy write. */ | |
bc0da3fc | 1691 | udelay(5); |
1da177e4 LT |
1692 | |
1693 | for (i = 0; i < 6; i++) { | |
1694 | int value, boguscnt = 100000; | |
1695 | do | |
1696 | value = dr32(ROMCmd); | |
1697 | while (value < 0 && --boguscnt > 0); | |
1698 | de->dev->dev_addr[i] = value; | |
1699 | udelay(1); | |
1700 | if (boguscnt <= 0) | |
1701 | printk(KERN_WARNING PFX "timeout reading 21040 MAC address byte %u\n", i); | |
1702 | } | |
1703 | } | |
1704 | ||
4c44fd00 | 1705 | static void __devinit de21040_get_media_info(struct de_private *de) |
1da177e4 LT |
1706 | { |
1707 | unsigned int i; | |
1708 | ||
1709 | de->media_type = DE_MEDIA_TP; | |
1710 | de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Full | | |
1711 | SUPPORTED_10baseT_Half | SUPPORTED_AUI; | |
1712 | de->media_advertise = de->media_supported; | |
1713 | ||
1714 | for (i = 0; i < DE_MAX_MEDIA; i++) { | |
1715 | switch (i) { | |
1716 | case DE_MEDIA_AUI: | |
1717 | case DE_MEDIA_TP: | |
1718 | case DE_MEDIA_TP_FD: | |
1719 | de->media[i].type = i; | |
1720 | de->media[i].csr13 = t21040_csr13[i]; | |
1721 | de->media[i].csr14 = t21040_csr14[i]; | |
1722 | de->media[i].csr15 = t21040_csr15[i]; | |
1723 | break; | |
1724 | default: | |
1725 | de->media[i].type = DE_MEDIA_INVALID; | |
1726 | break; | |
1727 | } | |
1728 | } | |
1729 | } | |
1730 | ||
1731 | /* Note: this routine returns extra data bits for size detection. */ | |
4a1d2d81 | 1732 | static unsigned __devinit tulip_read_eeprom(void __iomem *regs, int location, int addr_len) |
1da177e4 LT |
1733 | { |
1734 | int i; | |
1735 | unsigned retval = 0; | |
1736 | void __iomem *ee_addr = regs + ROMCmd; | |
1737 | int read_cmd = location | (EE_READ_CMD << addr_len); | |
1738 | ||
1739 | writel(EE_ENB & ~EE_CS, ee_addr); | |
1740 | writel(EE_ENB, ee_addr); | |
1741 | ||
1742 | /* Shift the read command bits out. */ | |
1743 | for (i = 4 + addr_len; i >= 0; i--) { | |
1744 | short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; | |
1745 | writel(EE_ENB | dataval, ee_addr); | |
1746 | readl(ee_addr); | |
1747 | writel(EE_ENB | dataval | EE_SHIFT_CLK, ee_addr); | |
1748 | readl(ee_addr); | |
1749 | retval = (retval << 1) | ((readl(ee_addr) & EE_DATA_READ) ? 1 : 0); | |
1750 | } | |
1751 | writel(EE_ENB, ee_addr); | |
1752 | readl(ee_addr); | |
1753 | ||
1754 | for (i = 16; i > 0; i--) { | |
1755 | writel(EE_ENB | EE_SHIFT_CLK, ee_addr); | |
1756 | readl(ee_addr); | |
1757 | retval = (retval << 1) | ((readl(ee_addr) & EE_DATA_READ) ? 1 : 0); | |
1758 | writel(EE_ENB, ee_addr); | |
1759 | readl(ee_addr); | |
1760 | } | |
1761 | ||
1762 | /* Terminate the EEPROM access. */ | |
1763 | writel(EE_ENB & ~EE_CS, ee_addr); | |
1764 | return retval; | |
1765 | } | |
1766 | ||
4c44fd00 | 1767 | static void __devinit de21041_get_srom_info (struct de_private *de) |
1da177e4 LT |
1768 | { |
1769 | unsigned i, sa_offset = 0, ofs; | |
1770 | u8 ee_data[DE_EEPROM_SIZE + 6] = {}; | |
1771 | unsigned ee_addr_size = tulip_read_eeprom(de->regs, 0xff, 8) & 0x40000 ? 8 : 6; | |
1772 | struct de_srom_info_leaf *il; | |
1773 | void *bufp; | |
1774 | ||
1775 | /* download entire eeprom */ | |
1776 | for (i = 0; i < DE_EEPROM_WORDS; i++) | |
c559a5bc AV |
1777 | ((__le16 *)ee_data)[i] = |
1778 | cpu_to_le16(tulip_read_eeprom(de->regs, i, ee_addr_size)); | |
1da177e4 LT |
1779 | |
1780 | /* DEC now has a specification but early board makers | |
1781 | just put the address in the first EEPROM locations. */ | |
1782 | /* This does memcmp(eedata, eedata+16, 8) */ | |
bc053d45 RB |
1783 | |
1784 | #ifndef CONFIG_MIPS_COBALT | |
1785 | ||
1da177e4 LT |
1786 | for (i = 0; i < 8; i ++) |
1787 | if (ee_data[i] != ee_data[16+i]) | |
1788 | sa_offset = 20; | |
1789 | ||
bc053d45 RB |
1790 | #endif |
1791 | ||
1da177e4 LT |
1792 | /* store MAC address */ |
1793 | for (i = 0; i < 6; i ++) | |
1794 | de->dev->dev_addr[i] = ee_data[i + sa_offset]; | |
1795 | ||
1796 | /* get offset of controller 0 info leaf. ignore 2nd byte. */ | |
1797 | ofs = ee_data[SROMC0InfoLeaf]; | |
1798 | if (ofs >= (sizeof(ee_data) - sizeof(struct de_srom_info_leaf) - sizeof(struct de_srom_media_block))) | |
1799 | goto bad_srom; | |
1800 | ||
1801 | /* get pointer to info leaf */ | |
1802 | il = (struct de_srom_info_leaf *) &ee_data[ofs]; | |
1803 | ||
1804 | /* paranoia checks */ | |
1805 | if (il->n_blocks == 0) | |
1806 | goto bad_srom; | |
1807 | if ((sizeof(ee_data) - ofs) < | |
1808 | (sizeof(struct de_srom_info_leaf) + (sizeof(struct de_srom_media_block) * il->n_blocks))) | |
1809 | goto bad_srom; | |
1810 | ||
1811 | /* get default media type */ | |
445854f4 | 1812 | switch (get_unaligned(&il->default_media)) { |
1da177e4 LT |
1813 | case 0x0001: de->media_type = DE_MEDIA_BNC; break; |
1814 | case 0x0002: de->media_type = DE_MEDIA_AUI; break; | |
1815 | case 0x0204: de->media_type = DE_MEDIA_TP_FD; break; | |
1816 | default: de->media_type = DE_MEDIA_TP_AUTO; break; | |
1817 | } | |
f3b197ac | 1818 | |
1da177e4 LT |
1819 | if (netif_msg_probe(de)) |
1820 | printk(KERN_INFO "de%d: SROM leaf offset %u, default media %s\n", | |
1821 | de->board_idx, ofs, | |
1822 | media_name[de->media_type]); | |
1823 | ||
1824 | /* init SIA register values to defaults */ | |
1825 | for (i = 0; i < DE_MAX_MEDIA; i++) { | |
1826 | de->media[i].type = DE_MEDIA_INVALID; | |
1827 | de->media[i].csr13 = 0xffff; | |
1828 | de->media[i].csr14 = 0xffff; | |
1829 | de->media[i].csr15 = 0xffff; | |
1830 | } | |
1831 | ||
1832 | /* parse media blocks to see what medias are supported, | |
1833 | * and if any custom CSR values are provided | |
1834 | */ | |
1835 | bufp = ((void *)il) + sizeof(*il); | |
1836 | for (i = 0; i < il->n_blocks; i++) { | |
1837 | struct de_srom_media_block *ib = bufp; | |
1838 | unsigned idx; | |
1839 | ||
1840 | /* index based on media type in media block */ | |
1841 | switch(ib->opts & MediaBlockMask) { | |
1842 | case 0: /* 10baseT */ | |
1843 | de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half | |
1844 | | SUPPORTED_Autoneg; | |
1845 | idx = DE_MEDIA_TP; | |
1846 | de->media[DE_MEDIA_TP_AUTO].type = DE_MEDIA_TP_AUTO; | |
1847 | break; | |
1848 | case 1: /* BNC */ | |
1849 | de->media_supported |= SUPPORTED_BNC; | |
1850 | idx = DE_MEDIA_BNC; | |
1851 | break; | |
1852 | case 2: /* AUI */ | |
1853 | de->media_supported |= SUPPORTED_AUI; | |
1854 | idx = DE_MEDIA_AUI; | |
1855 | break; | |
1856 | case 4: /* 10baseT-FD */ | |
1857 | de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Full | |
1858 | | SUPPORTED_Autoneg; | |
1859 | idx = DE_MEDIA_TP_FD; | |
1860 | de->media[DE_MEDIA_TP_AUTO].type = DE_MEDIA_TP_AUTO; | |
1861 | break; | |
1862 | default: | |
1863 | goto bad_srom; | |
1864 | } | |
1865 | ||
1866 | de->media[idx].type = idx; | |
1867 | ||
1868 | if (netif_msg_probe(de)) | |
1869 | printk(KERN_INFO "de%d: media block #%u: %s", | |
1870 | de->board_idx, i, | |
1871 | media_name[de->media[idx].type]); | |
1872 | ||
1873 | bufp += sizeof (ib->opts); | |
1874 | ||
1875 | if (ib->opts & MediaCustomCSRs) { | |
445854f4 HH |
1876 | de->media[idx].csr13 = get_unaligned(&ib->csr13); |
1877 | de->media[idx].csr14 = get_unaligned(&ib->csr14); | |
1878 | de->media[idx].csr15 = get_unaligned(&ib->csr15); | |
1da177e4 LT |
1879 | bufp += sizeof(ib->csr13) + sizeof(ib->csr14) + |
1880 | sizeof(ib->csr15); | |
1881 | ||
1882 | if (netif_msg_probe(de)) | |
1883 | printk(" (%x,%x,%x)\n", | |
1884 | de->media[idx].csr13, | |
1885 | de->media[idx].csr14, | |
1886 | de->media[idx].csr15); | |
f3b197ac | 1887 | |
1da177e4 LT |
1888 | } else if (netif_msg_probe(de)) |
1889 | printk("\n"); | |
1890 | ||
1891 | if (bufp > ((void *)&ee_data[DE_EEPROM_SIZE - 3])) | |
1892 | break; | |
1893 | } | |
1894 | ||
1895 | de->media_advertise = de->media_supported; | |
1896 | ||
1897 | fill_defaults: | |
1898 | /* fill in defaults, for cases where custom CSRs not used */ | |
1899 | for (i = 0; i < DE_MAX_MEDIA; i++) { | |
1900 | if (de->media[i].csr13 == 0xffff) | |
1901 | de->media[i].csr13 = t21041_csr13[i]; | |
1902 | if (de->media[i].csr14 == 0xffff) | |
1903 | de->media[i].csr14 = t21041_csr14[i]; | |
1904 | if (de->media[i].csr15 == 0xffff) | |
1905 | de->media[i].csr15 = t21041_csr15[i]; | |
1906 | } | |
1907 | ||
c3a9392e | 1908 | de->ee_data = kmemdup(&ee_data[0], DE_EEPROM_SIZE, GFP_KERNEL); |
1da177e4 LT |
1909 | |
1910 | return; | |
1911 | ||
1912 | bad_srom: | |
1913 | /* for error cases, it's ok to assume we support all these */ | |
1914 | for (i = 0; i < DE_MAX_MEDIA; i++) | |
1915 | de->media[i].type = i; | |
1916 | de->media_supported = | |
1917 | SUPPORTED_10baseT_Half | | |
1918 | SUPPORTED_10baseT_Full | | |
1919 | SUPPORTED_Autoneg | | |
1920 | SUPPORTED_TP | | |
1921 | SUPPORTED_AUI | | |
1922 | SUPPORTED_BNC; | |
1923 | goto fill_defaults; | |
1924 | } | |
1925 | ||
4a1d2d81 | 1926 | static int __devinit de_init_one (struct pci_dev *pdev, |
1da177e4 LT |
1927 | const struct pci_device_id *ent) |
1928 | { | |
1929 | struct net_device *dev; | |
1930 | struct de_private *de; | |
1931 | int rc; | |
1932 | void __iomem *regs; | |
afc7097f | 1933 | unsigned long pciaddr; |
1da177e4 LT |
1934 | static int board_idx = -1; |
1935 | ||
1936 | board_idx++; | |
1937 | ||
1938 | #ifndef MODULE | |
1939 | if (board_idx == 0) | |
1940 | printk("%s", version); | |
1941 | #endif | |
1942 | ||
1943 | /* allocate a new ethernet device structure, and fill in defaults */ | |
1944 | dev = alloc_etherdev(sizeof(struct de_private)); | |
1945 | if (!dev) | |
1946 | return -ENOMEM; | |
1947 | ||
1da177e4 LT |
1948 | SET_NETDEV_DEV(dev, &pdev->dev); |
1949 | dev->open = de_open; | |
1950 | dev->stop = de_close; | |
1951 | dev->set_multicast_list = de_set_rx_mode; | |
1952 | dev->hard_start_xmit = de_start_xmit; | |
1953 | dev->get_stats = de_get_stats; | |
1954 | dev->ethtool_ops = &de_ethtool_ops; | |
1955 | dev->tx_timeout = de_tx_timeout; | |
1956 | dev->watchdog_timeo = TX_TIMEOUT; | |
1957 | ||
1958 | de = dev->priv; | |
1959 | de->de21040 = ent->driver_data == 0 ? 1 : 0; | |
1960 | de->pdev = pdev; | |
1961 | de->dev = dev; | |
1962 | de->msg_enable = (debug < 0 ? DE_DEF_MSG_ENABLE : debug); | |
1963 | de->board_idx = board_idx; | |
1964 | spin_lock_init (&de->lock); | |
1965 | init_timer(&de->media_timer); | |
1966 | if (de->de21040) | |
1967 | de->media_timer.function = de21040_media_timer; | |
1968 | else | |
1969 | de->media_timer.function = de21041_media_timer; | |
1970 | de->media_timer.data = (unsigned long) de; | |
1971 | ||
1972 | netif_carrier_off(dev); | |
1973 | netif_stop_queue(dev); | |
1974 | ||
1975 | /* wake up device, assign resources */ | |
1976 | rc = pci_enable_device(pdev); | |
1977 | if (rc) | |
1978 | goto err_out_free; | |
1979 | ||
1980 | /* reserve PCI resources to ensure driver atomicity */ | |
1981 | rc = pci_request_regions(pdev, DRV_NAME); | |
1982 | if (rc) | |
1983 | goto err_out_disable; | |
1984 | ||
1985 | /* check for invalid IRQ value */ | |
1986 | if (pdev->irq < 2) { | |
1987 | rc = -EIO; | |
1988 | printk(KERN_ERR PFX "invalid irq (%d) for pci dev %s\n", | |
1989 | pdev->irq, pci_name(pdev)); | |
1990 | goto err_out_res; | |
1991 | } | |
1992 | ||
1993 | dev->irq = pdev->irq; | |
1994 | ||
1995 | /* obtain and check validity of PCI I/O address */ | |
1996 | pciaddr = pci_resource_start(pdev, 1); | |
1997 | if (!pciaddr) { | |
1998 | rc = -EIO; | |
1999 | printk(KERN_ERR PFX "no MMIO resource for pci dev %s\n", | |
2000 | pci_name(pdev)); | |
2001 | goto err_out_res; | |
2002 | } | |
2003 | if (pci_resource_len(pdev, 1) < DE_REGS_SIZE) { | |
2004 | rc = -EIO; | |
7c7459d1 GKH |
2005 | printk(KERN_ERR PFX "MMIO resource (%llx) too small on pci dev %s\n", |
2006 | (unsigned long long)pci_resource_len(pdev, 1), pci_name(pdev)); | |
1da177e4 LT |
2007 | goto err_out_res; |
2008 | } | |
2009 | ||
2010 | /* remap CSR registers */ | |
2011 | regs = ioremap_nocache(pciaddr, DE_REGS_SIZE); | |
2012 | if (!regs) { | |
2013 | rc = -EIO; | |
7c7459d1 GKH |
2014 | printk(KERN_ERR PFX "Cannot map PCI MMIO (%llx@%lx) on pci dev %s\n", |
2015 | (unsigned long long)pci_resource_len(pdev, 1), | |
2016 | pciaddr, pci_name(pdev)); | |
1da177e4 LT |
2017 | goto err_out_res; |
2018 | } | |
2019 | dev->base_addr = (unsigned long) regs; | |
2020 | de->regs = regs; | |
2021 | ||
2022 | de_adapter_wake(de); | |
2023 | ||
2024 | /* make sure hardware is not running */ | |
2025 | rc = de_reset_mac(de); | |
2026 | if (rc) { | |
2027 | printk(KERN_ERR PFX "Cannot reset MAC, pci dev %s\n", | |
2028 | pci_name(pdev)); | |
2029 | goto err_out_iomap; | |
2030 | } | |
2031 | ||
2032 | /* get MAC address, initialize default media type and | |
2033 | * get list of supported media | |
2034 | */ | |
2035 | if (de->de21040) { | |
2036 | de21040_get_mac_address(de); | |
2037 | de21040_get_media_info(de); | |
2038 | } else { | |
2039 | de21041_get_srom_info(de); | |
2040 | } | |
2041 | ||
2042 | /* register new network interface with kernel */ | |
2043 | rc = register_netdev(dev); | |
2044 | if (rc) | |
2045 | goto err_out_iomap; | |
2046 | ||
2047 | /* print info about board and interface just registered */ | |
e174961c | 2048 | printk (KERN_INFO "%s: %s at 0x%lx, %pM, IRQ %d\n", |
1da177e4 LT |
2049 | dev->name, |
2050 | de->de21040 ? "21040" : "21041", | |
2051 | dev->base_addr, | |
e174961c | 2052 | dev->dev_addr, |
1da177e4 LT |
2053 | dev->irq); |
2054 | ||
2055 | pci_set_drvdata(pdev, dev); | |
2056 | ||
2057 | /* enable busmastering */ | |
2058 | pci_set_master(pdev); | |
2059 | ||
2060 | /* put adapter to sleep */ | |
2061 | de_adapter_sleep(de); | |
2062 | ||
2063 | return 0; | |
2064 | ||
2065 | err_out_iomap: | |
b4558ea9 | 2066 | kfree(de->ee_data); |
1da177e4 LT |
2067 | iounmap(regs); |
2068 | err_out_res: | |
2069 | pci_release_regions(pdev); | |
2070 | err_out_disable: | |
2071 | pci_disable_device(pdev); | |
2072 | err_out_free: | |
2073 | free_netdev(dev); | |
2074 | return rc; | |
2075 | } | |
2076 | ||
4a1d2d81 | 2077 | static void __devexit de_remove_one (struct pci_dev *pdev) |
1da177e4 LT |
2078 | { |
2079 | struct net_device *dev = pci_get_drvdata(pdev); | |
2080 | struct de_private *de = dev->priv; | |
2081 | ||
7e0b58f3 | 2082 | BUG_ON(!dev); |
1da177e4 | 2083 | unregister_netdev(dev); |
b4558ea9 | 2084 | kfree(de->ee_data); |
1da177e4 LT |
2085 | iounmap(de->regs); |
2086 | pci_release_regions(pdev); | |
2087 | pci_disable_device(pdev); | |
2088 | pci_set_drvdata(pdev, NULL); | |
2089 | free_netdev(dev); | |
2090 | } | |
2091 | ||
2092 | #ifdef CONFIG_PM | |
2093 | ||
05adc3b7 | 2094 | static int de_suspend (struct pci_dev *pdev, pm_message_t state) |
1da177e4 LT |
2095 | { |
2096 | struct net_device *dev = pci_get_drvdata (pdev); | |
2097 | struct de_private *de = dev->priv; | |
2098 | ||
2099 | rtnl_lock(); | |
2100 | if (netif_running (dev)) { | |
2101 | del_timer_sync(&de->media_timer); | |
2102 | ||
2103 | disable_irq(dev->irq); | |
2104 | spin_lock_irq(&de->lock); | |
2105 | ||
2106 | de_stop_hw(de); | |
2107 | netif_stop_queue(dev); | |
2108 | netif_device_detach(dev); | |
2109 | netif_carrier_off(dev); | |
2110 | ||
2111 | spin_unlock_irq(&de->lock); | |
2112 | enable_irq(dev->irq); | |
f3b197ac | 2113 | |
1da177e4 LT |
2114 | /* Update the error counts. */ |
2115 | __de_get_stats(de); | |
2116 | ||
2117 | synchronize_irq(dev->irq); | |
2118 | de_clean_rings(de); | |
2119 | ||
2120 | de_adapter_sleep(de); | |
2121 | pci_disable_device(pdev); | |
2122 | } else { | |
2123 | netif_device_detach(dev); | |
2124 | } | |
2125 | rtnl_unlock(); | |
2126 | return 0; | |
2127 | } | |
2128 | ||
2129 | static int de_resume (struct pci_dev *pdev) | |
2130 | { | |
2131 | struct net_device *dev = pci_get_drvdata (pdev); | |
2132 | struct de_private *de = dev->priv; | |
9f486ae1 | 2133 | int retval = 0; |
1da177e4 LT |
2134 | |
2135 | rtnl_lock(); | |
2136 | if (netif_device_present(dev)) | |
2137 | goto out; | |
9f486ae1 VH |
2138 | if (!netif_running(dev)) |
2139 | goto out_attach; | |
2140 | if ((retval = pci_enable_device(pdev))) { | |
2141 | printk (KERN_ERR "%s: pci_enable_device failed in resume\n", | |
2142 | dev->name); | |
2143 | goto out; | |
1da177e4 | 2144 | } |
9f486ae1 VH |
2145 | de_init_hw(de); |
2146 | out_attach: | |
2147 | netif_device_attach(dev); | |
1da177e4 LT |
2148 | out: |
2149 | rtnl_unlock(); | |
2150 | return 0; | |
2151 | } | |
2152 | ||
2153 | #endif /* CONFIG_PM */ | |
2154 | ||
2155 | static struct pci_driver de_driver = { | |
2156 | .name = DRV_NAME, | |
2157 | .id_table = de_pci_tbl, | |
2158 | .probe = de_init_one, | |
4a1d2d81 | 2159 | .remove = __devexit_p(de_remove_one), |
1da177e4 LT |
2160 | #ifdef CONFIG_PM |
2161 | .suspend = de_suspend, | |
2162 | .resume = de_resume, | |
2163 | #endif | |
2164 | }; | |
2165 | ||
2166 | static int __init de_init (void) | |
2167 | { | |
2168 | #ifdef MODULE | |
2169 | printk("%s", version); | |
2170 | #endif | |
29917620 | 2171 | return pci_register_driver(&de_driver); |
1da177e4 LT |
2172 | } |
2173 | ||
2174 | static void __exit de_exit (void) | |
2175 | { | |
2176 | pci_unregister_driver (&de_driver); | |
2177 | } | |
2178 | ||
2179 | module_init(de_init); | |
2180 | module_exit(de_exit); |