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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 pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
31 | ||
32 | #define DRV_NAME "de2104x" | |
33 | #define DRV_VERSION "0.7" | |
34 | #define DRV_RELDATE "Mar 17, 2004" | |
35 | ||
36 | #include <linux/module.h> | |
37 | #include <linux/kernel.h> | |
38 | #include <linux/netdevice.h> | |
39 | #include <linux/etherdevice.h> | |
40 | #include <linux/init.h> | |
41 | #include <linux/interrupt.h> | |
42 | #include <linux/pci.h> | |
43 | #include <linux/delay.h> | |
44 | #include <linux/ethtool.h> | |
45 | #include <linux/compiler.h> | |
46 | #include <linux/rtnetlink.h> | |
47 | #include <linux/crc32.h> | |
48 | #include <linux/slab.h> | |
49 | ||
50 | #include <asm/io.h> | |
51 | #include <asm/irq.h> | |
52 | #include <asm/uaccess.h> | |
53 | #include <asm/unaligned.h> | |
54 | ||
55 | /* These identify the driver base version and may not be removed. */ | |
56 | static char version[] = | |
57 | "PCI Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")"; | |
58 | ||
59 | MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>"); | |
60 | MODULE_DESCRIPTION("Intel/Digital 21040/1 series PCI Ethernet driver"); | |
61 | MODULE_LICENSE("GPL"); | |
62 | MODULE_VERSION(DRV_VERSION); | |
63 | ||
64 | static int debug = -1; | |
65 | module_param (debug, int, 0); | |
66 | MODULE_PARM_DESC (debug, "de2104x bitmapped message enable number"); | |
67 | ||
68 | /* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */ | |
69 | #if defined(__alpha__) || defined(__arm__) || defined(__hppa__) || \ | |
70 | defined(CONFIG_SPARC) || defined(__ia64__) || \ | |
71 | defined(__sh__) || defined(__mips__) | |
72 | static int rx_copybreak = 1518; | |
73 | #else | |
74 | static int rx_copybreak = 100; | |
75 | #endif | |
76 | module_param (rx_copybreak, int, 0); | |
77 | MODULE_PARM_DESC (rx_copybreak, "de2104x Breakpoint at which Rx packets are copied"); | |
78 | ||
79 | #define DE_DEF_MSG_ENABLE (NETIF_MSG_DRV | \ | |
80 | NETIF_MSG_PROBE | \ | |
81 | NETIF_MSG_LINK | \ | |
82 | NETIF_MSG_IFDOWN | \ | |
83 | NETIF_MSG_IFUP | \ | |
84 | NETIF_MSG_RX_ERR | \ | |
85 | NETIF_MSG_TX_ERR) | |
86 | ||
87 | /* Descriptor skip length in 32 bit longwords. */ | |
88 | #ifndef CONFIG_DE2104X_DSL | |
89 | #define DSL 0 | |
90 | #else | |
91 | #define DSL CONFIG_DE2104X_DSL | |
92 | #endif | |
93 | ||
94 | #define DE_RX_RING_SIZE 64 | |
95 | #define DE_TX_RING_SIZE 64 | |
96 | #define DE_RING_BYTES \ | |
97 | ((sizeof(struct de_desc) * DE_RX_RING_SIZE) + \ | |
98 | (sizeof(struct de_desc) * DE_TX_RING_SIZE)) | |
99 | #define NEXT_TX(N) (((N) + 1) & (DE_TX_RING_SIZE - 1)) | |
100 | #define NEXT_RX(N) (((N) + 1) & (DE_RX_RING_SIZE - 1)) | |
101 | #define TX_BUFFS_AVAIL(CP) \ | |
102 | (((CP)->tx_tail <= (CP)->tx_head) ? \ | |
103 | (CP)->tx_tail + (DE_TX_RING_SIZE - 1) - (CP)->tx_head : \ | |
104 | (CP)->tx_tail - (CP)->tx_head - 1) | |
105 | ||
106 | #define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/ | |
107 | #define RX_OFFSET 2 | |
108 | ||
109 | #define DE_SETUP_SKB ((struct sk_buff *) 1) | |
110 | #define DE_DUMMY_SKB ((struct sk_buff *) 2) | |
111 | #define DE_SETUP_FRAME_WORDS 96 | |
112 | #define DE_EEPROM_WORDS 256 | |
113 | #define DE_EEPROM_SIZE (DE_EEPROM_WORDS * sizeof(u16)) | |
114 | #define DE_MAX_MEDIA 5 | |
115 | ||
116 | #define DE_MEDIA_TP_AUTO 0 | |
117 | #define DE_MEDIA_BNC 1 | |
118 | #define DE_MEDIA_AUI 2 | |
119 | #define DE_MEDIA_TP 3 | |
120 | #define DE_MEDIA_TP_FD 4 | |
121 | #define DE_MEDIA_INVALID DE_MAX_MEDIA | |
122 | #define DE_MEDIA_FIRST 0 | |
123 | #define DE_MEDIA_LAST (DE_MAX_MEDIA - 1) | |
124 | #define DE_AUI_BNC (SUPPORTED_AUI | SUPPORTED_BNC) | |
125 | ||
126 | #define DE_TIMER_LINK (60 * HZ) | |
127 | #define DE_TIMER_NO_LINK (5 * HZ) | |
128 | ||
129 | #define DE_NUM_REGS 16 | |
130 | #define DE_REGS_SIZE (DE_NUM_REGS * sizeof(u32)) | |
131 | #define DE_REGS_VER 1 | |
132 | ||
133 | /* Time in jiffies before concluding the transmitter is hung. */ | |
134 | #define TX_TIMEOUT (6*HZ) | |
135 | ||
136 | /* This is a mysterious value that can be written to CSR11 in the 21040 (only) | |
137 | to support a pre-NWay full-duplex signaling mechanism using short frames. | |
138 | No one knows what it should be, but if left at its default value some | |
139 | 10base2(!) packets trigger a full-duplex-request interrupt. */ | |
140 | #define FULL_DUPLEX_MAGIC 0x6969 | |
141 | ||
142 | enum { | |
143 | /* NIC registers */ | |
144 | BusMode = 0x00, | |
145 | TxPoll = 0x08, | |
146 | RxPoll = 0x10, | |
147 | RxRingAddr = 0x18, | |
148 | TxRingAddr = 0x20, | |
149 | MacStatus = 0x28, | |
150 | MacMode = 0x30, | |
151 | IntrMask = 0x38, | |
152 | RxMissed = 0x40, | |
153 | ROMCmd = 0x48, | |
154 | CSR11 = 0x58, | |
155 | SIAStatus = 0x60, | |
156 | CSR13 = 0x68, | |
157 | CSR14 = 0x70, | |
158 | CSR15 = 0x78, | |
159 | PCIPM = 0x40, | |
160 | ||
161 | /* BusMode bits */ | |
162 | CmdReset = (1 << 0), | |
163 | CacheAlign16 = 0x00008000, | |
164 | BurstLen4 = 0x00000400, | |
165 | DescSkipLen = (DSL << 2), | |
166 | ||
167 | /* Rx/TxPoll bits */ | |
168 | NormalTxPoll = (1 << 0), | |
169 | NormalRxPoll = (1 << 0), | |
170 | ||
171 | /* Tx/Rx descriptor status bits */ | |
172 | DescOwn = (1 << 31), | |
173 | RxError = (1 << 15), | |
174 | RxErrLong = (1 << 7), | |
175 | RxErrCRC = (1 << 1), | |
176 | RxErrFIFO = (1 << 0), | |
177 | RxErrRunt = (1 << 11), | |
178 | RxErrFrame = (1 << 14), | |
179 | RingEnd = (1 << 25), | |
180 | FirstFrag = (1 << 29), | |
181 | LastFrag = (1 << 30), | |
182 | TxError = (1 << 15), | |
183 | TxFIFOUnder = (1 << 1), | |
184 | TxLinkFail = (1 << 2) | (1 << 10) | (1 << 11), | |
185 | TxMaxCol = (1 << 8), | |
186 | TxOWC = (1 << 9), | |
187 | TxJabber = (1 << 14), | |
188 | SetupFrame = (1 << 27), | |
189 | TxSwInt = (1 << 31), | |
190 | ||
191 | /* MacStatus bits */ | |
192 | IntrOK = (1 << 16), | |
193 | IntrErr = (1 << 15), | |
194 | RxIntr = (1 << 6), | |
195 | RxEmpty = (1 << 7), | |
196 | TxIntr = (1 << 0), | |
197 | TxEmpty = (1 << 2), | |
198 | PciErr = (1 << 13), | |
199 | TxState = (1 << 22) | (1 << 21) | (1 << 20), | |
200 | RxState = (1 << 19) | (1 << 18) | (1 << 17), | |
201 | LinkFail = (1 << 12), | |
202 | LinkPass = (1 << 4), | |
203 | RxStopped = (1 << 8), | |
204 | TxStopped = (1 << 1), | |
205 | ||
206 | /* MacMode bits */ | |
207 | TxEnable = (1 << 13), | |
208 | RxEnable = (1 << 1), | |
209 | RxTx = TxEnable | RxEnable, | |
210 | FullDuplex = (1 << 9), | |
211 | AcceptAllMulticast = (1 << 7), | |
212 | AcceptAllPhys = (1 << 6), | |
213 | BOCnt = (1 << 5), | |
214 | MacModeClear = (1<<12) | (1<<11) | (1<<10) | (1<<8) | (1<<3) | | |
215 | RxTx | BOCnt | AcceptAllPhys | AcceptAllMulticast, | |
216 | ||
217 | /* ROMCmd bits */ | |
218 | EE_SHIFT_CLK = 0x02, /* EEPROM shift clock. */ | |
219 | EE_CS = 0x01, /* EEPROM chip select. */ | |
220 | EE_DATA_WRITE = 0x04, /* Data from the Tulip to EEPROM. */ | |
221 | EE_WRITE_0 = 0x01, | |
222 | EE_WRITE_1 = 0x05, | |
223 | EE_DATA_READ = 0x08, /* Data from the EEPROM chip. */ | |
224 | EE_ENB = (0x4800 | EE_CS), | |
225 | ||
226 | /* The EEPROM commands include the alway-set leading bit. */ | |
227 | EE_READ_CMD = 6, | |
228 | ||
229 | /* RxMissed bits */ | |
230 | RxMissedOver = (1 << 16), | |
231 | RxMissedMask = 0xffff, | |
232 | ||
233 | /* SROM-related bits */ | |
234 | SROMC0InfoLeaf = 27, | |
235 | MediaBlockMask = 0x3f, | |
236 | MediaCustomCSRs = (1 << 6), | |
237 | ||
238 | /* PCIPM bits */ | |
239 | PM_Sleep = (1 << 31), | |
240 | PM_Snooze = (1 << 30), | |
241 | PM_Mask = PM_Sleep | PM_Snooze, | |
242 | ||
243 | /* SIAStatus bits */ | |
244 | NWayState = (1 << 14) | (1 << 13) | (1 << 12), | |
245 | NWayRestart = (1 << 12), | |
246 | NonselPortActive = (1 << 9), | |
247 | SelPortActive = (1 << 8), | |
248 | LinkFailStatus = (1 << 2), | |
249 | NetCxnErr = (1 << 1), | |
250 | }; | |
251 | ||
252 | static const u32 de_intr_mask = | |
253 | IntrOK | IntrErr | RxIntr | RxEmpty | TxIntr | TxEmpty | | |
254 | LinkPass | LinkFail | PciErr; | |
255 | ||
256 | /* | |
257 | * Set the programmable burst length to 4 longwords for all: | |
258 | * DMA errors result without these values. Cache align 16 long. | |
259 | */ | |
260 | static const u32 de_bus_mode = CacheAlign16 | BurstLen4 | DescSkipLen; | |
261 | ||
262 | struct de_srom_media_block { | |
263 | u8 opts; | |
264 | u16 csr13; | |
265 | u16 csr14; | |
266 | u16 csr15; | |
267 | } __packed; | |
268 | ||
269 | struct de_srom_info_leaf { | |
270 | u16 default_media; | |
271 | u8 n_blocks; | |
272 | u8 unused; | |
273 | } __packed; | |
274 | ||
275 | struct de_desc { | |
276 | __le32 opts1; | |
277 | __le32 opts2; | |
278 | __le32 addr1; | |
279 | __le32 addr2; | |
280 | #if DSL | |
281 | __le32 skip[DSL]; | |
282 | #endif | |
283 | }; | |
284 | ||
285 | struct media_info { | |
286 | u16 type; /* DE_MEDIA_xxx */ | |
287 | u16 csr13; | |
288 | u16 csr14; | |
289 | u16 csr15; | |
290 | }; | |
291 | ||
292 | struct ring_info { | |
293 | struct sk_buff *skb; | |
294 | dma_addr_t mapping; | |
295 | }; | |
296 | ||
297 | struct de_private { | |
298 | unsigned tx_head; | |
299 | unsigned tx_tail; | |
300 | unsigned rx_tail; | |
301 | ||
302 | void __iomem *regs; | |
303 | struct net_device *dev; | |
304 | spinlock_t lock; | |
305 | ||
306 | struct de_desc *rx_ring; | |
307 | struct de_desc *tx_ring; | |
308 | struct ring_info tx_skb[DE_TX_RING_SIZE]; | |
309 | struct ring_info rx_skb[DE_RX_RING_SIZE]; | |
310 | unsigned rx_buf_sz; | |
311 | dma_addr_t ring_dma; | |
312 | ||
313 | u32 msg_enable; | |
314 | ||
315 | struct net_device_stats net_stats; | |
316 | ||
317 | struct pci_dev *pdev; | |
318 | ||
319 | u16 setup_frame[DE_SETUP_FRAME_WORDS]; | |
320 | ||
321 | u32 media_type; | |
322 | u32 media_supported; | |
323 | u32 media_advertise; | |
324 | struct media_info media[DE_MAX_MEDIA]; | |
325 | struct timer_list media_timer; | |
326 | ||
327 | u8 *ee_data; | |
328 | unsigned board_idx; | |
329 | unsigned de21040 : 1; | |
330 | unsigned media_lock : 1; | |
331 | }; | |
332 | ||
333 | ||
334 | static void de_set_rx_mode (struct net_device *dev); | |
335 | static void de_tx (struct de_private *de); | |
336 | static void de_clean_rings (struct de_private *de); | |
337 | static void de_media_interrupt (struct de_private *de, u32 status); | |
338 | static void de21040_media_timer (unsigned long data); | |
339 | static void de21041_media_timer (unsigned long data); | |
340 | static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media); | |
341 | ||
342 | ||
343 | static DEFINE_PCI_DEVICE_TABLE(de_pci_tbl) = { | |
344 | { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP, | |
345 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
346 | { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_PLUS, | |
347 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 }, | |
348 | { }, | |
349 | }; | |
350 | MODULE_DEVICE_TABLE(pci, de_pci_tbl); | |
351 | ||
352 | static const char * const media_name[DE_MAX_MEDIA] = { | |
353 | "10baseT auto", | |
354 | "BNC", | |
355 | "AUI", | |
356 | "10baseT-HD", | |
357 | "10baseT-FD" | |
358 | }; | |
359 | ||
360 | /* 21040 transceiver register settings: | |
361 | * TP AUTO(unused), BNC(unused), AUI, TP, TP FD*/ | |
362 | static u16 t21040_csr13[] = { 0, 0, 0x8F09, 0x8F01, 0x8F01, }; | |
363 | static u16 t21040_csr14[] = { 0, 0, 0x0705, 0xFFFF, 0xFFFD, }; | |
364 | static u16 t21040_csr15[] = { 0, 0, 0x0006, 0x0000, 0x0000, }; | |
365 | ||
366 | /* 21041 transceiver register settings: TP AUTO, BNC, AUI, TP, TP FD*/ | |
367 | static u16 t21041_csr13[] = { 0xEF01, 0xEF09, 0xEF09, 0xEF01, 0xEF09, }; | |
368 | static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x7F3F, 0x7F3D, }; | |
369 | /* If on-chip autonegotiation is broken, use half-duplex (FF3F) instead */ | |
370 | static u16 t21041_csr14_brk[] = { 0xFF3F, 0xF7FD, 0xF7FD, 0x7F3F, 0x7F3D, }; | |
371 | static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, }; | |
372 | ||
373 | ||
374 | #define dr32(reg) ioread32(de->regs + (reg)) | |
375 | #define dw32(reg, val) iowrite32((val), de->regs + (reg)) | |
376 | ||
377 | ||
378 | static void de_rx_err_acct (struct de_private *de, unsigned rx_tail, | |
379 | u32 status, u32 len) | |
380 | { | |
381 | netif_dbg(de, rx_err, de->dev, | |
382 | "rx err, slot %d status 0x%x len %d\n", | |
383 | rx_tail, status, len); | |
384 | ||
385 | if ((status & 0x38000300) != 0x0300) { | |
386 | /* Ingore earlier buffers. */ | |
387 | if ((status & 0xffff) != 0x7fff) { | |
388 | netif_warn(de, rx_err, de->dev, | |
389 | "Oversized Ethernet frame spanned multiple buffers, status %08x!\n", | |
390 | status); | |
391 | de->net_stats.rx_length_errors++; | |
392 | } | |
393 | } else if (status & RxError) { | |
394 | /* There was a fatal error. */ | |
395 | de->net_stats.rx_errors++; /* end of a packet.*/ | |
396 | if (status & 0x0890) de->net_stats.rx_length_errors++; | |
397 | if (status & RxErrCRC) de->net_stats.rx_crc_errors++; | |
398 | if (status & RxErrFIFO) de->net_stats.rx_fifo_errors++; | |
399 | } | |
400 | } | |
401 | ||
402 | static void de_rx (struct de_private *de) | |
403 | { | |
404 | unsigned rx_tail = de->rx_tail; | |
405 | unsigned rx_work = DE_RX_RING_SIZE; | |
406 | unsigned drop = 0; | |
407 | int rc; | |
408 | ||
409 | while (--rx_work) { | |
410 | u32 status, len; | |
411 | dma_addr_t mapping; | |
412 | struct sk_buff *skb, *copy_skb; | |
413 | unsigned copying_skb, buflen; | |
414 | ||
415 | skb = de->rx_skb[rx_tail].skb; | |
416 | BUG_ON(!skb); | |
417 | rmb(); | |
418 | status = le32_to_cpu(de->rx_ring[rx_tail].opts1); | |
419 | if (status & DescOwn) | |
420 | break; | |
421 | ||
422 | len = ((status >> 16) & 0x7ff) - 4; | |
423 | mapping = de->rx_skb[rx_tail].mapping; | |
424 | ||
425 | if (unlikely(drop)) { | |
426 | de->net_stats.rx_dropped++; | |
427 | goto rx_next; | |
428 | } | |
429 | ||
430 | if (unlikely((status & 0x38008300) != 0x0300)) { | |
431 | de_rx_err_acct(de, rx_tail, status, len); | |
432 | goto rx_next; | |
433 | } | |
434 | ||
435 | copying_skb = (len <= rx_copybreak); | |
436 | ||
437 | netif_dbg(de, rx_status, de->dev, | |
438 | "rx slot %d status 0x%x len %d copying? %d\n", | |
439 | rx_tail, status, len, copying_skb); | |
440 | ||
441 | buflen = copying_skb ? (len + RX_OFFSET) : de->rx_buf_sz; | |
442 | copy_skb = dev_alloc_skb (buflen); | |
443 | if (unlikely(!copy_skb)) { | |
444 | de->net_stats.rx_dropped++; | |
445 | drop = 1; | |
446 | rx_work = 100; | |
447 | goto rx_next; | |
448 | } | |
449 | ||
450 | if (!copying_skb) { | |
451 | pci_unmap_single(de->pdev, mapping, | |
452 | buflen, PCI_DMA_FROMDEVICE); | |
453 | skb_put(skb, len); | |
454 | ||
455 | mapping = | |
456 | de->rx_skb[rx_tail].mapping = | |
457 | pci_map_single(de->pdev, copy_skb->data, | |
458 | buflen, PCI_DMA_FROMDEVICE); | |
459 | de->rx_skb[rx_tail].skb = copy_skb; | |
460 | } else { | |
461 | pci_dma_sync_single_for_cpu(de->pdev, mapping, len, PCI_DMA_FROMDEVICE); | |
462 | skb_reserve(copy_skb, RX_OFFSET); | |
463 | skb_copy_from_linear_data(skb, skb_put(copy_skb, len), | |
464 | len); | |
465 | pci_dma_sync_single_for_device(de->pdev, mapping, len, PCI_DMA_FROMDEVICE); | |
466 | ||
467 | /* We'll reuse the original ring buffer. */ | |
468 | skb = copy_skb; | |
469 | } | |
470 | ||
471 | skb->protocol = eth_type_trans (skb, de->dev); | |
472 | ||
473 | de->net_stats.rx_packets++; | |
474 | de->net_stats.rx_bytes += skb->len; | |
475 | rc = netif_rx (skb); | |
476 | if (rc == NET_RX_DROP) | |
477 | drop = 1; | |
478 | ||
479 | rx_next: | |
480 | if (rx_tail == (DE_RX_RING_SIZE - 1)) | |
481 | de->rx_ring[rx_tail].opts2 = | |
482 | cpu_to_le32(RingEnd | de->rx_buf_sz); | |
483 | else | |
484 | de->rx_ring[rx_tail].opts2 = cpu_to_le32(de->rx_buf_sz); | |
485 | de->rx_ring[rx_tail].addr1 = cpu_to_le32(mapping); | |
486 | wmb(); | |
487 | de->rx_ring[rx_tail].opts1 = cpu_to_le32(DescOwn); | |
488 | rx_tail = NEXT_RX(rx_tail); | |
489 | } | |
490 | ||
491 | if (!rx_work) | |
492 | netdev_warn(de->dev, "rx work limit reached\n"); | |
493 | ||
494 | de->rx_tail = rx_tail; | |
495 | } | |
496 | ||
497 | static irqreturn_t de_interrupt (int irq, void *dev_instance) | |
498 | { | |
499 | struct net_device *dev = dev_instance; | |
500 | struct de_private *de = netdev_priv(dev); | |
501 | u32 status; | |
502 | ||
503 | status = dr32(MacStatus); | |
504 | if ((!(status & (IntrOK|IntrErr))) || (status == 0xFFFF)) | |
505 | return IRQ_NONE; | |
506 | ||
507 | netif_dbg(de, intr, dev, "intr, status %08x mode %08x desc %u/%u/%u\n", | |
508 | status, dr32(MacMode), | |
509 | de->rx_tail, de->tx_head, de->tx_tail); | |
510 | ||
511 | dw32(MacStatus, status); | |
512 | ||
513 | if (status & (RxIntr | RxEmpty)) { | |
514 | de_rx(de); | |
515 | if (status & RxEmpty) | |
516 | dw32(RxPoll, NormalRxPoll); | |
517 | } | |
518 | ||
519 | spin_lock(&de->lock); | |
520 | ||
521 | if (status & (TxIntr | TxEmpty)) | |
522 | de_tx(de); | |
523 | ||
524 | if (status & (LinkPass | LinkFail)) | |
525 | de_media_interrupt(de, status); | |
526 | ||
527 | spin_unlock(&de->lock); | |
528 | ||
529 | if (status & PciErr) { | |
530 | u16 pci_status; | |
531 | ||
532 | pci_read_config_word(de->pdev, PCI_STATUS, &pci_status); | |
533 | pci_write_config_word(de->pdev, PCI_STATUS, pci_status); | |
534 | netdev_err(de->dev, | |
535 | "PCI bus error, status=%08x, PCI status=%04x\n", | |
536 | status, pci_status); | |
537 | } | |
538 | ||
539 | return IRQ_HANDLED; | |
540 | } | |
541 | ||
542 | static void de_tx (struct de_private *de) | |
543 | { | |
544 | unsigned tx_head = de->tx_head; | |
545 | unsigned tx_tail = de->tx_tail; | |
546 | ||
547 | while (tx_tail != tx_head) { | |
548 | struct sk_buff *skb; | |
549 | u32 status; | |
550 | ||
551 | rmb(); | |
552 | status = le32_to_cpu(de->tx_ring[tx_tail].opts1); | |
553 | if (status & DescOwn) | |
554 | break; | |
555 | ||
556 | skb = de->tx_skb[tx_tail].skb; | |
557 | BUG_ON(!skb); | |
558 | if (unlikely(skb == DE_DUMMY_SKB)) | |
559 | goto next; | |
560 | ||
561 | if (unlikely(skb == DE_SETUP_SKB)) { | |
562 | pci_unmap_single(de->pdev, de->tx_skb[tx_tail].mapping, | |
563 | sizeof(de->setup_frame), PCI_DMA_TODEVICE); | |
564 | goto next; | |
565 | } | |
566 | ||
567 | pci_unmap_single(de->pdev, de->tx_skb[tx_tail].mapping, | |
568 | skb->len, PCI_DMA_TODEVICE); | |
569 | ||
570 | if (status & LastFrag) { | |
571 | if (status & TxError) { | |
572 | netif_dbg(de, tx_err, de->dev, | |
573 | "tx err, status 0x%x\n", | |
574 | status); | |
575 | de->net_stats.tx_errors++; | |
576 | if (status & TxOWC) | |
577 | de->net_stats.tx_window_errors++; | |
578 | if (status & TxMaxCol) | |
579 | de->net_stats.tx_aborted_errors++; | |
580 | if (status & TxLinkFail) | |
581 | de->net_stats.tx_carrier_errors++; | |
582 | if (status & TxFIFOUnder) | |
583 | de->net_stats.tx_fifo_errors++; | |
584 | } else { | |
585 | de->net_stats.tx_packets++; | |
586 | de->net_stats.tx_bytes += skb->len; | |
587 | netif_dbg(de, tx_done, de->dev, | |
588 | "tx done, slot %d\n", tx_tail); | |
589 | } | |
590 | dev_kfree_skb_irq(skb); | |
591 | } | |
592 | ||
593 | next: | |
594 | de->tx_skb[tx_tail].skb = NULL; | |
595 | ||
596 | tx_tail = NEXT_TX(tx_tail); | |
597 | } | |
598 | ||
599 | de->tx_tail = tx_tail; | |
600 | ||
601 | if (netif_queue_stopped(de->dev) && (TX_BUFFS_AVAIL(de) > (DE_TX_RING_SIZE / 4))) | |
602 | netif_wake_queue(de->dev); | |
603 | } | |
604 | ||
605 | static netdev_tx_t de_start_xmit (struct sk_buff *skb, | |
606 | struct net_device *dev) | |
607 | { | |
608 | struct de_private *de = netdev_priv(dev); | |
609 | unsigned int entry, tx_free; | |
610 | u32 mapping, len, flags = FirstFrag | LastFrag; | |
611 | struct de_desc *txd; | |
612 | ||
613 | spin_lock_irq(&de->lock); | |
614 | ||
615 | tx_free = TX_BUFFS_AVAIL(de); | |
616 | if (tx_free == 0) { | |
617 | netif_stop_queue(dev); | |
618 | spin_unlock_irq(&de->lock); | |
619 | return NETDEV_TX_BUSY; | |
620 | } | |
621 | tx_free--; | |
622 | ||
623 | entry = de->tx_head; | |
624 | ||
625 | txd = &de->tx_ring[entry]; | |
626 | ||
627 | len = skb->len; | |
628 | mapping = pci_map_single(de->pdev, skb->data, len, PCI_DMA_TODEVICE); | |
629 | if (entry == (DE_TX_RING_SIZE - 1)) | |
630 | flags |= RingEnd; | |
631 | if (!tx_free || (tx_free == (DE_TX_RING_SIZE / 2))) | |
632 | flags |= TxSwInt; | |
633 | flags |= len; | |
634 | txd->opts2 = cpu_to_le32(flags); | |
635 | txd->addr1 = cpu_to_le32(mapping); | |
636 | ||
637 | de->tx_skb[entry].skb = skb; | |
638 | de->tx_skb[entry].mapping = mapping; | |
639 | wmb(); | |
640 | ||
641 | txd->opts1 = cpu_to_le32(DescOwn); | |
642 | wmb(); | |
643 | ||
644 | de->tx_head = NEXT_TX(entry); | |
645 | netif_dbg(de, tx_queued, dev, "tx queued, slot %d, skblen %d\n", | |
646 | entry, skb->len); | |
647 | ||
648 | if (tx_free == 0) | |
649 | netif_stop_queue(dev); | |
650 | ||
651 | spin_unlock_irq(&de->lock); | |
652 | ||
653 | /* Trigger an immediate transmit demand. */ | |
654 | dw32(TxPoll, NormalTxPoll); | |
655 | ||
656 | return NETDEV_TX_OK; | |
657 | } | |
658 | ||
659 | /* Set or clear the multicast filter for this adaptor. | |
660 | Note that we only use exclusion around actually queueing the | |
661 | new frame, not around filling de->setup_frame. This is non-deterministic | |
662 | when re-entered but still correct. */ | |
663 | ||
664 | #undef set_bit_le | |
665 | #define set_bit_le(i,p) do { ((char *)(p))[(i)/8] |= (1<<((i)%8)); } while(0) | |
666 | ||
667 | static void build_setup_frame_hash(u16 *setup_frm, struct net_device *dev) | |
668 | { | |
669 | struct de_private *de = netdev_priv(dev); | |
670 | u16 hash_table[32]; | |
671 | struct netdev_hw_addr *ha; | |
672 | int i; | |
673 | u16 *eaddrs; | |
674 | ||
675 | memset(hash_table, 0, sizeof(hash_table)); | |
676 | set_bit_le(255, hash_table); /* Broadcast entry */ | |
677 | /* This should work on big-endian machines as well. */ | |
678 | netdev_for_each_mc_addr(ha, dev) { | |
679 | int index = ether_crc_le(ETH_ALEN, ha->addr) & 0x1ff; | |
680 | ||
681 | set_bit_le(index, hash_table); | |
682 | } | |
683 | ||
684 | for (i = 0; i < 32; i++) { | |
685 | *setup_frm++ = hash_table[i]; | |
686 | *setup_frm++ = hash_table[i]; | |
687 | } | |
688 | setup_frm = &de->setup_frame[13*6]; | |
689 | ||
690 | /* Fill the final entry with our physical address. */ | |
691 | eaddrs = (u16 *)dev->dev_addr; | |
692 | *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0]; | |
693 | *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1]; | |
694 | *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2]; | |
695 | } | |
696 | ||
697 | static void build_setup_frame_perfect(u16 *setup_frm, struct net_device *dev) | |
698 | { | |
699 | struct de_private *de = netdev_priv(dev); | |
700 | struct netdev_hw_addr *ha; | |
701 | u16 *eaddrs; | |
702 | ||
703 | /* We have <= 14 addresses so we can use the wonderful | |
704 | 16 address perfect filtering of the Tulip. */ | |
705 | netdev_for_each_mc_addr(ha, dev) { | |
706 | eaddrs = (u16 *) ha->addr; | |
707 | *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; | |
708 | *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; | |
709 | *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; | |
710 | } | |
711 | /* Fill the unused entries with the broadcast address. */ | |
712 | memset(setup_frm, 0xff, (15 - netdev_mc_count(dev)) * 12); | |
713 | setup_frm = &de->setup_frame[15*6]; | |
714 | ||
715 | /* Fill the final entry with our physical address. */ | |
716 | eaddrs = (u16 *)dev->dev_addr; | |
717 | *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0]; | |
718 | *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1]; | |
719 | *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2]; | |
720 | } | |
721 | ||
722 | ||
723 | static void __de_set_rx_mode (struct net_device *dev) | |
724 | { | |
725 | struct de_private *de = netdev_priv(dev); | |
726 | u32 macmode; | |
727 | unsigned int entry; | |
728 | u32 mapping; | |
729 | struct de_desc *txd; | |
730 | struct de_desc *dummy_txd = NULL; | |
731 | ||
732 | macmode = dr32(MacMode) & ~(AcceptAllMulticast | AcceptAllPhys); | |
733 | ||
734 | if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ | |
735 | macmode |= AcceptAllMulticast | AcceptAllPhys; | |
736 | goto out; | |
737 | } | |
738 | ||
739 | if ((netdev_mc_count(dev) > 1000) || (dev->flags & IFF_ALLMULTI)) { | |
740 | /* Too many to filter well -- accept all multicasts. */ | |
741 | macmode |= AcceptAllMulticast; | |
742 | goto out; | |
743 | } | |
744 | ||
745 | /* Note that only the low-address shortword of setup_frame is valid! | |
746 | The values are doubled for big-endian architectures. */ | |
747 | if (netdev_mc_count(dev) > 14) /* Must use a multicast hash table. */ | |
748 | build_setup_frame_hash (de->setup_frame, dev); | |
749 | else | |
750 | build_setup_frame_perfect (de->setup_frame, dev); | |
751 | ||
752 | /* | |
753 | * Now add this frame to the Tx list. | |
754 | */ | |
755 | ||
756 | entry = de->tx_head; | |
757 | ||
758 | /* Avoid a chip errata by prefixing a dummy entry. */ | |
759 | if (entry != 0) { | |
760 | de->tx_skb[entry].skb = DE_DUMMY_SKB; | |
761 | ||
762 | dummy_txd = &de->tx_ring[entry]; | |
763 | dummy_txd->opts2 = (entry == (DE_TX_RING_SIZE - 1)) ? | |
764 | cpu_to_le32(RingEnd) : 0; | |
765 | dummy_txd->addr1 = 0; | |
766 | ||
767 | /* Must set DescOwned later to avoid race with chip */ | |
768 | ||
769 | entry = NEXT_TX(entry); | |
770 | } | |
771 | ||
772 | de->tx_skb[entry].skb = DE_SETUP_SKB; | |
773 | de->tx_skb[entry].mapping = mapping = | |
774 | pci_map_single (de->pdev, de->setup_frame, | |
775 | sizeof (de->setup_frame), PCI_DMA_TODEVICE); | |
776 | ||
777 | /* Put the setup frame on the Tx list. */ | |
778 | txd = &de->tx_ring[entry]; | |
779 | if (entry == (DE_TX_RING_SIZE - 1)) | |
780 | txd->opts2 = cpu_to_le32(SetupFrame | RingEnd | sizeof (de->setup_frame)); | |
781 | else | |
782 | txd->opts2 = cpu_to_le32(SetupFrame | sizeof (de->setup_frame)); | |
783 | txd->addr1 = cpu_to_le32(mapping); | |
784 | wmb(); | |
785 | ||
786 | txd->opts1 = cpu_to_le32(DescOwn); | |
787 | wmb(); | |
788 | ||
789 | if (dummy_txd) { | |
790 | dummy_txd->opts1 = cpu_to_le32(DescOwn); | |
791 | wmb(); | |
792 | } | |
793 | ||
794 | de->tx_head = NEXT_TX(entry); | |
795 | ||
796 | if (TX_BUFFS_AVAIL(de) == 0) | |
797 | netif_stop_queue(dev); | |
798 | ||
799 | /* Trigger an immediate transmit demand. */ | |
800 | dw32(TxPoll, NormalTxPoll); | |
801 | ||
802 | out: | |
803 | if (macmode != dr32(MacMode)) | |
804 | dw32(MacMode, macmode); | |
805 | } | |
806 | ||
807 | static void de_set_rx_mode (struct net_device *dev) | |
808 | { | |
809 | unsigned long flags; | |
810 | struct de_private *de = netdev_priv(dev); | |
811 | ||
812 | spin_lock_irqsave (&de->lock, flags); | |
813 | __de_set_rx_mode(dev); | |
814 | spin_unlock_irqrestore (&de->lock, flags); | |
815 | } | |
816 | ||
817 | static inline void de_rx_missed(struct de_private *de, u32 rx_missed) | |
818 | { | |
819 | if (unlikely(rx_missed & RxMissedOver)) | |
820 | de->net_stats.rx_missed_errors += RxMissedMask; | |
821 | else | |
822 | de->net_stats.rx_missed_errors += (rx_missed & RxMissedMask); | |
823 | } | |
824 | ||
825 | static void __de_get_stats(struct de_private *de) | |
826 | { | |
827 | u32 tmp = dr32(RxMissed); /* self-clearing */ | |
828 | ||
829 | de_rx_missed(de, tmp); | |
830 | } | |
831 | ||
832 | static struct net_device_stats *de_get_stats(struct net_device *dev) | |
833 | { | |
834 | struct de_private *de = netdev_priv(dev); | |
835 | ||
836 | /* The chip only need report frame silently dropped. */ | |
837 | spin_lock_irq(&de->lock); | |
838 | if (netif_running(dev) && netif_device_present(dev)) | |
839 | __de_get_stats(de); | |
840 | spin_unlock_irq(&de->lock); | |
841 | ||
842 | return &de->net_stats; | |
843 | } | |
844 | ||
845 | static inline int de_is_running (struct de_private *de) | |
846 | { | |
847 | return (dr32(MacStatus) & (RxState | TxState)) ? 1 : 0; | |
848 | } | |
849 | ||
850 | static void de_stop_rxtx (struct de_private *de) | |
851 | { | |
852 | u32 macmode; | |
853 | unsigned int i = 1300/100; | |
854 | ||
855 | macmode = dr32(MacMode); | |
856 | if (macmode & RxTx) { | |
857 | dw32(MacMode, macmode & ~RxTx); | |
858 | dr32(MacMode); | |
859 | } | |
860 | ||
861 | /* wait until in-flight frame completes. | |
862 | * Max time @ 10BT: 1500*8b/10Mbps == 1200us (+ 100us margin) | |
863 | * Typically expect this loop to end in < 50 us on 100BT. | |
864 | */ | |
865 | while (--i) { | |
866 | if (!de_is_running(de)) | |
867 | return; | |
868 | udelay(100); | |
869 | } | |
870 | ||
871 | netdev_warn(de->dev, "timeout expired, stopping DMA\n"); | |
872 | } | |
873 | ||
874 | static inline void de_start_rxtx (struct de_private *de) | |
875 | { | |
876 | u32 macmode; | |
877 | ||
878 | macmode = dr32(MacMode); | |
879 | if ((macmode & RxTx) != RxTx) { | |
880 | dw32(MacMode, macmode | RxTx); | |
881 | dr32(MacMode); | |
882 | } | |
883 | } | |
884 | ||
885 | static void de_stop_hw (struct de_private *de) | |
886 | { | |
887 | ||
888 | udelay(5); | |
889 | dw32(IntrMask, 0); | |
890 | ||
891 | de_stop_rxtx(de); | |
892 | ||
893 | dw32(MacStatus, dr32(MacStatus)); | |
894 | ||
895 | udelay(10); | |
896 | ||
897 | de->rx_tail = 0; | |
898 | de->tx_head = de->tx_tail = 0; | |
899 | } | |
900 | ||
901 | static void de_link_up(struct de_private *de) | |
902 | { | |
903 | if (!netif_carrier_ok(de->dev)) { | |
904 | netif_carrier_on(de->dev); | |
905 | netif_info(de, link, de->dev, "link up, media %s\n", | |
906 | media_name[de->media_type]); | |
907 | } | |
908 | } | |
909 | ||
910 | static void de_link_down(struct de_private *de) | |
911 | { | |
912 | if (netif_carrier_ok(de->dev)) { | |
913 | netif_carrier_off(de->dev); | |
914 | netif_info(de, link, de->dev, "link down\n"); | |
915 | } | |
916 | } | |
917 | ||
918 | static void de_set_media (struct de_private *de) | |
919 | { | |
920 | unsigned media = de->media_type; | |
921 | u32 macmode = dr32(MacMode); | |
922 | ||
923 | if (de_is_running(de)) | |
924 | netdev_warn(de->dev, "chip is running while changing media!\n"); | |
925 | ||
926 | if (de->de21040) | |
927 | dw32(CSR11, FULL_DUPLEX_MAGIC); | |
928 | dw32(CSR13, 0); /* Reset phy */ | |
929 | dw32(CSR14, de->media[media].csr14); | |
930 | dw32(CSR15, de->media[media].csr15); | |
931 | dw32(CSR13, de->media[media].csr13); | |
932 | ||
933 | /* must delay 10ms before writing to other registers, | |
934 | * especially CSR6 | |
935 | */ | |
936 | mdelay(10); | |
937 | ||
938 | if (media == DE_MEDIA_TP_FD) | |
939 | macmode |= FullDuplex; | |
940 | else | |
941 | macmode &= ~FullDuplex; | |
942 | ||
943 | netif_info(de, link, de->dev, "set link %s\n", media_name[media]); | |
944 | netif_info(de, hw, de->dev, "mode 0x%x, sia 0x%x,0x%x,0x%x,0x%x\n", | |
945 | dr32(MacMode), dr32(SIAStatus), | |
946 | dr32(CSR13), dr32(CSR14), dr32(CSR15)); | |
947 | netif_info(de, hw, de->dev, "set mode 0x%x, set sia 0x%x,0x%x,0x%x\n", | |
948 | macmode, de->media[media].csr13, | |
949 | de->media[media].csr14, de->media[media].csr15); | |
950 | if (macmode != dr32(MacMode)) | |
951 | dw32(MacMode, macmode); | |
952 | } | |
953 | ||
954 | static void de_next_media (struct de_private *de, const u32 *media, | |
955 | unsigned int n_media) | |
956 | { | |
957 | unsigned int i; | |
958 | ||
959 | for (i = 0; i < n_media; i++) { | |
960 | if (de_ok_to_advertise(de, media[i])) { | |
961 | de->media_type = media[i]; | |
962 | return; | |
963 | } | |
964 | } | |
965 | } | |
966 | ||
967 | static void de21040_media_timer (unsigned long data) | |
968 | { | |
969 | struct de_private *de = (struct de_private *) data; | |
970 | struct net_device *dev = de->dev; | |
971 | u32 status = dr32(SIAStatus); | |
972 | unsigned int carrier; | |
973 | unsigned long flags; | |
974 | ||
975 | carrier = (status & NetCxnErr) ? 0 : 1; | |
976 | ||
977 | if (carrier) { | |
978 | if (de->media_type != DE_MEDIA_AUI && (status & LinkFailStatus)) | |
979 | goto no_link_yet; | |
980 | ||
981 | de->media_timer.expires = jiffies + DE_TIMER_LINK; | |
982 | add_timer(&de->media_timer); | |
983 | if (!netif_carrier_ok(dev)) | |
984 | de_link_up(de); | |
985 | else | |
986 | netif_info(de, timer, dev, "%s link ok, status %x\n", | |
987 | media_name[de->media_type], status); | |
988 | return; | |
989 | } | |
990 | ||
991 | de_link_down(de); | |
992 | ||
993 | if (de->media_lock) | |
994 | return; | |
995 | ||
996 | if (de->media_type == DE_MEDIA_AUI) { | |
997 | static const u32 next_state = DE_MEDIA_TP; | |
998 | de_next_media(de, &next_state, 1); | |
999 | } else { | |
1000 | static const u32 next_state = DE_MEDIA_AUI; | |
1001 | de_next_media(de, &next_state, 1); | |
1002 | } | |
1003 | ||
1004 | spin_lock_irqsave(&de->lock, flags); | |
1005 | de_stop_rxtx(de); | |
1006 | spin_unlock_irqrestore(&de->lock, flags); | |
1007 | de_set_media(de); | |
1008 | de_start_rxtx(de); | |
1009 | ||
1010 | no_link_yet: | |
1011 | de->media_timer.expires = jiffies + DE_TIMER_NO_LINK; | |
1012 | add_timer(&de->media_timer); | |
1013 | ||
1014 | netif_info(de, timer, dev, "no link, trying media %s, status %x\n", | |
1015 | media_name[de->media_type], status); | |
1016 | } | |
1017 | ||
1018 | static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media) | |
1019 | { | |
1020 | switch (new_media) { | |
1021 | case DE_MEDIA_TP_AUTO: | |
1022 | if (!(de->media_advertise & ADVERTISED_Autoneg)) | |
1023 | return 0; | |
1024 | if (!(de->media_advertise & (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full))) | |
1025 | return 0; | |
1026 | break; | |
1027 | case DE_MEDIA_BNC: | |
1028 | if (!(de->media_advertise & ADVERTISED_BNC)) | |
1029 | return 0; | |
1030 | break; | |
1031 | case DE_MEDIA_AUI: | |
1032 | if (!(de->media_advertise & ADVERTISED_AUI)) | |
1033 | return 0; | |
1034 | break; | |
1035 | case DE_MEDIA_TP: | |
1036 | if (!(de->media_advertise & ADVERTISED_10baseT_Half)) | |
1037 | return 0; | |
1038 | break; | |
1039 | case DE_MEDIA_TP_FD: | |
1040 | if (!(de->media_advertise & ADVERTISED_10baseT_Full)) | |
1041 | return 0; | |
1042 | break; | |
1043 | } | |
1044 | ||
1045 | return 1; | |
1046 | } | |
1047 | ||
1048 | static void de21041_media_timer (unsigned long data) | |
1049 | { | |
1050 | struct de_private *de = (struct de_private *) data; | |
1051 | struct net_device *dev = de->dev; | |
1052 | u32 status = dr32(SIAStatus); | |
1053 | unsigned int carrier; | |
1054 | unsigned long flags; | |
1055 | ||
1056 | /* clear port active bits */ | |
1057 | dw32(SIAStatus, NonselPortActive | SelPortActive); | |
1058 | ||
1059 | carrier = (status & NetCxnErr) ? 0 : 1; | |
1060 | ||
1061 | if (carrier) { | |
1062 | if ((de->media_type == DE_MEDIA_TP_AUTO || | |
1063 | de->media_type == DE_MEDIA_TP || | |
1064 | de->media_type == DE_MEDIA_TP_FD) && | |
1065 | (status & LinkFailStatus)) | |
1066 | goto no_link_yet; | |
1067 | ||
1068 | de->media_timer.expires = jiffies + DE_TIMER_LINK; | |
1069 | add_timer(&de->media_timer); | |
1070 | if (!netif_carrier_ok(dev)) | |
1071 | de_link_up(de); | |
1072 | else | |
1073 | netif_info(de, timer, dev, | |
1074 | "%s link ok, mode %x status %x\n", | |
1075 | media_name[de->media_type], | |
1076 | dr32(MacMode), status); | |
1077 | return; | |
1078 | } | |
1079 | ||
1080 | de_link_down(de); | |
1081 | ||
1082 | /* if media type locked, don't switch media */ | |
1083 | if (de->media_lock) | |
1084 | goto set_media; | |
1085 | ||
1086 | /* if activity detected, use that as hint for new media type */ | |
1087 | if (status & NonselPortActive) { | |
1088 | unsigned int have_media = 1; | |
1089 | ||
1090 | /* if AUI/BNC selected, then activity is on TP port */ | |
1091 | if (de->media_type == DE_MEDIA_AUI || | |
1092 | de->media_type == DE_MEDIA_BNC) { | |
1093 | if (de_ok_to_advertise(de, DE_MEDIA_TP_AUTO)) | |
1094 | de->media_type = DE_MEDIA_TP_AUTO; | |
1095 | else | |
1096 | have_media = 0; | |
1097 | } | |
1098 | ||
1099 | /* TP selected. If there is only TP and BNC, then it's BNC */ | |
1100 | else if (((de->media_supported & DE_AUI_BNC) == SUPPORTED_BNC) && | |
1101 | de_ok_to_advertise(de, DE_MEDIA_BNC)) | |
1102 | de->media_type = DE_MEDIA_BNC; | |
1103 | ||
1104 | /* TP selected. If there is only TP and AUI, then it's AUI */ | |
1105 | else if (((de->media_supported & DE_AUI_BNC) == SUPPORTED_AUI) && | |
1106 | de_ok_to_advertise(de, DE_MEDIA_AUI)) | |
1107 | de->media_type = DE_MEDIA_AUI; | |
1108 | ||
1109 | /* otherwise, ignore the hint */ | |
1110 | else | |
1111 | have_media = 0; | |
1112 | ||
1113 | if (have_media) | |
1114 | goto set_media; | |
1115 | } | |
1116 | ||
1117 | /* | |
1118 | * Absent or ambiguous activity hint, move to next advertised | |
1119 | * media state. If de->media_type is left unchanged, this | |
1120 | * simply resets the PHY and reloads the current media settings. | |
1121 | */ | |
1122 | if (de->media_type == DE_MEDIA_AUI) { | |
1123 | static const u32 next_states[] = { | |
1124 | DE_MEDIA_BNC, DE_MEDIA_TP_AUTO | |
1125 | }; | |
1126 | de_next_media(de, next_states, ARRAY_SIZE(next_states)); | |
1127 | } else if (de->media_type == DE_MEDIA_BNC) { | |
1128 | static const u32 next_states[] = { | |
1129 | DE_MEDIA_TP_AUTO, DE_MEDIA_AUI | |
1130 | }; | |
1131 | de_next_media(de, next_states, ARRAY_SIZE(next_states)); | |
1132 | } else { | |
1133 | static const u32 next_states[] = { | |
1134 | DE_MEDIA_AUI, DE_MEDIA_BNC, DE_MEDIA_TP_AUTO | |
1135 | }; | |
1136 | de_next_media(de, next_states, ARRAY_SIZE(next_states)); | |
1137 | } | |
1138 | ||
1139 | set_media: | |
1140 | spin_lock_irqsave(&de->lock, flags); | |
1141 | de_stop_rxtx(de); | |
1142 | spin_unlock_irqrestore(&de->lock, flags); | |
1143 | de_set_media(de); | |
1144 | de_start_rxtx(de); | |
1145 | ||
1146 | no_link_yet: | |
1147 | de->media_timer.expires = jiffies + DE_TIMER_NO_LINK; | |
1148 | add_timer(&de->media_timer); | |
1149 | ||
1150 | netif_info(de, timer, dev, "no link, trying media %s, status %x\n", | |
1151 | media_name[de->media_type], status); | |
1152 | } | |
1153 | ||
1154 | static void de_media_interrupt (struct de_private *de, u32 status) | |
1155 | { | |
1156 | if (status & LinkPass) { | |
1157 | /* Ignore if current media is AUI or BNC and we can't use TP */ | |
1158 | if ((de->media_type == DE_MEDIA_AUI || | |
1159 | de->media_type == DE_MEDIA_BNC) && | |
1160 | (de->media_lock || | |
1161 | !de_ok_to_advertise(de, DE_MEDIA_TP_AUTO))) | |
1162 | return; | |
1163 | /* If current media is not TP, change it to TP */ | |
1164 | if ((de->media_type == DE_MEDIA_AUI || | |
1165 | de->media_type == DE_MEDIA_BNC)) { | |
1166 | de->media_type = DE_MEDIA_TP_AUTO; | |
1167 | de_stop_rxtx(de); | |
1168 | de_set_media(de); | |
1169 | de_start_rxtx(de); | |
1170 | } | |
1171 | de_link_up(de); | |
1172 | mod_timer(&de->media_timer, jiffies + DE_TIMER_LINK); | |
1173 | return; | |
1174 | } | |
1175 | ||
1176 | BUG_ON(!(status & LinkFail)); | |
1177 | /* Mark the link as down only if current media is TP */ | |
1178 | if (netif_carrier_ok(de->dev) && de->media_type != DE_MEDIA_AUI && | |
1179 | de->media_type != DE_MEDIA_BNC) { | |
1180 | de_link_down(de); | |
1181 | mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK); | |
1182 | } | |
1183 | } | |
1184 | ||
1185 | static int de_reset_mac (struct de_private *de) | |
1186 | { | |
1187 | u32 status, tmp; | |
1188 | ||
1189 | /* | |
1190 | * Reset MAC. de4x5.c and tulip.c examined for "advice" | |
1191 | * in this area. | |
1192 | */ | |
1193 | ||
1194 | if (dr32(BusMode) == 0xffffffff) | |
1195 | return -EBUSY; | |
1196 | ||
1197 | /* Reset the chip, holding bit 0 set at least 50 PCI cycles. */ | |
1198 | dw32 (BusMode, CmdReset); | |
1199 | mdelay (1); | |
1200 | ||
1201 | dw32 (BusMode, de_bus_mode); | |
1202 | mdelay (1); | |
1203 | ||
1204 | for (tmp = 0; tmp < 5; tmp++) { | |
1205 | dr32 (BusMode); | |
1206 | mdelay (1); | |
1207 | } | |
1208 | ||
1209 | mdelay (1); | |
1210 | ||
1211 | status = dr32(MacStatus); | |
1212 | if (status & (RxState | TxState)) | |
1213 | return -EBUSY; | |
1214 | if (status == 0xffffffff) | |
1215 | return -ENODEV; | |
1216 | return 0; | |
1217 | } | |
1218 | ||
1219 | static void de_adapter_wake (struct de_private *de) | |
1220 | { | |
1221 | u32 pmctl; | |
1222 | ||
1223 | if (de->de21040) | |
1224 | return; | |
1225 | ||
1226 | pci_read_config_dword(de->pdev, PCIPM, &pmctl); | |
1227 | if (pmctl & PM_Mask) { | |
1228 | pmctl &= ~PM_Mask; | |
1229 | pci_write_config_dword(de->pdev, PCIPM, pmctl); | |
1230 | ||
1231 | /* de4x5.c delays, so we do too */ | |
1232 | msleep(10); | |
1233 | } | |
1234 | } | |
1235 | ||
1236 | static void de_adapter_sleep (struct de_private *de) | |
1237 | { | |
1238 | u32 pmctl; | |
1239 | ||
1240 | if (de->de21040) | |
1241 | return; | |
1242 | ||
1243 | dw32(CSR13, 0); /* Reset phy */ | |
1244 | pci_read_config_dword(de->pdev, PCIPM, &pmctl); | |
1245 | pmctl |= PM_Sleep; | |
1246 | pci_write_config_dword(de->pdev, PCIPM, pmctl); | |
1247 | } | |
1248 | ||
1249 | static int de_init_hw (struct de_private *de) | |
1250 | { | |
1251 | struct net_device *dev = de->dev; | |
1252 | u32 macmode; | |
1253 | int rc; | |
1254 | ||
1255 | de_adapter_wake(de); | |
1256 | ||
1257 | macmode = dr32(MacMode) & ~MacModeClear; | |
1258 | ||
1259 | rc = de_reset_mac(de); | |
1260 | if (rc) | |
1261 | return rc; | |
1262 | ||
1263 | de_set_media(de); /* reset phy */ | |
1264 | ||
1265 | dw32(RxRingAddr, de->ring_dma); | |
1266 | dw32(TxRingAddr, de->ring_dma + (sizeof(struct de_desc) * DE_RX_RING_SIZE)); | |
1267 | ||
1268 | dw32(MacMode, RxTx | macmode); | |
1269 | ||
1270 | dr32(RxMissed); /* self-clearing */ | |
1271 | ||
1272 | dw32(IntrMask, de_intr_mask); | |
1273 | ||
1274 | de_set_rx_mode(dev); | |
1275 | ||
1276 | return 0; | |
1277 | } | |
1278 | ||
1279 | static int de_refill_rx (struct de_private *de) | |
1280 | { | |
1281 | unsigned i; | |
1282 | ||
1283 | for (i = 0; i < DE_RX_RING_SIZE; i++) { | |
1284 | struct sk_buff *skb; | |
1285 | ||
1286 | skb = dev_alloc_skb(de->rx_buf_sz); | |
1287 | if (!skb) | |
1288 | goto err_out; | |
1289 | ||
1290 | skb->dev = de->dev; | |
1291 | ||
1292 | de->rx_skb[i].mapping = pci_map_single(de->pdev, | |
1293 | skb->data, de->rx_buf_sz, PCI_DMA_FROMDEVICE); | |
1294 | de->rx_skb[i].skb = skb; | |
1295 | ||
1296 | de->rx_ring[i].opts1 = cpu_to_le32(DescOwn); | |
1297 | if (i == (DE_RX_RING_SIZE - 1)) | |
1298 | de->rx_ring[i].opts2 = | |
1299 | cpu_to_le32(RingEnd | de->rx_buf_sz); | |
1300 | else | |
1301 | de->rx_ring[i].opts2 = cpu_to_le32(de->rx_buf_sz); | |
1302 | de->rx_ring[i].addr1 = cpu_to_le32(de->rx_skb[i].mapping); | |
1303 | de->rx_ring[i].addr2 = 0; | |
1304 | } | |
1305 | ||
1306 | return 0; | |
1307 | ||
1308 | err_out: | |
1309 | de_clean_rings(de); | |
1310 | return -ENOMEM; | |
1311 | } | |
1312 | ||
1313 | static int de_init_rings (struct de_private *de) | |
1314 | { | |
1315 | memset(de->tx_ring, 0, sizeof(struct de_desc) * DE_TX_RING_SIZE); | |
1316 | de->tx_ring[DE_TX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd); | |
1317 | ||
1318 | de->rx_tail = 0; | |
1319 | de->tx_head = de->tx_tail = 0; | |
1320 | ||
1321 | return de_refill_rx (de); | |
1322 | } | |
1323 | ||
1324 | static int de_alloc_rings (struct de_private *de) | |
1325 | { | |
1326 | de->rx_ring = pci_alloc_consistent(de->pdev, DE_RING_BYTES, &de->ring_dma); | |
1327 | if (!de->rx_ring) | |
1328 | return -ENOMEM; | |
1329 | de->tx_ring = &de->rx_ring[DE_RX_RING_SIZE]; | |
1330 | return de_init_rings(de); | |
1331 | } | |
1332 | ||
1333 | static void de_clean_rings (struct de_private *de) | |
1334 | { | |
1335 | unsigned i; | |
1336 | ||
1337 | memset(de->rx_ring, 0, sizeof(struct de_desc) * DE_RX_RING_SIZE); | |
1338 | de->rx_ring[DE_RX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd); | |
1339 | wmb(); | |
1340 | memset(de->tx_ring, 0, sizeof(struct de_desc) * DE_TX_RING_SIZE); | |
1341 | de->tx_ring[DE_TX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd); | |
1342 | wmb(); | |
1343 | ||
1344 | for (i = 0; i < DE_RX_RING_SIZE; i++) { | |
1345 | if (de->rx_skb[i].skb) { | |
1346 | pci_unmap_single(de->pdev, de->rx_skb[i].mapping, | |
1347 | de->rx_buf_sz, PCI_DMA_FROMDEVICE); | |
1348 | dev_kfree_skb(de->rx_skb[i].skb); | |
1349 | } | |
1350 | } | |
1351 | ||
1352 | for (i = 0; i < DE_TX_RING_SIZE; i++) { | |
1353 | struct sk_buff *skb = de->tx_skb[i].skb; | |
1354 | if ((skb) && (skb != DE_DUMMY_SKB)) { | |
1355 | if (skb != DE_SETUP_SKB) { | |
1356 | de->net_stats.tx_dropped++; | |
1357 | pci_unmap_single(de->pdev, | |
1358 | de->tx_skb[i].mapping, | |
1359 | skb->len, PCI_DMA_TODEVICE); | |
1360 | dev_kfree_skb(skb); | |
1361 | } else { | |
1362 | pci_unmap_single(de->pdev, | |
1363 | de->tx_skb[i].mapping, | |
1364 | sizeof(de->setup_frame), | |
1365 | PCI_DMA_TODEVICE); | |
1366 | } | |
1367 | } | |
1368 | } | |
1369 | ||
1370 | memset(&de->rx_skb, 0, sizeof(struct ring_info) * DE_RX_RING_SIZE); | |
1371 | memset(&de->tx_skb, 0, sizeof(struct ring_info) * DE_TX_RING_SIZE); | |
1372 | } | |
1373 | ||
1374 | static void de_free_rings (struct de_private *de) | |
1375 | { | |
1376 | de_clean_rings(de); | |
1377 | pci_free_consistent(de->pdev, DE_RING_BYTES, de->rx_ring, de->ring_dma); | |
1378 | de->rx_ring = NULL; | |
1379 | de->tx_ring = NULL; | |
1380 | } | |
1381 | ||
1382 | static int de_open (struct net_device *dev) | |
1383 | { | |
1384 | struct de_private *de = netdev_priv(dev); | |
1385 | int rc; | |
1386 | ||
1387 | netif_dbg(de, ifup, dev, "enabling interface\n"); | |
1388 | ||
1389 | de->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32); | |
1390 | ||
1391 | rc = de_alloc_rings(de); | |
1392 | if (rc) { | |
1393 | netdev_err(dev, "ring allocation failure, err=%d\n", rc); | |
1394 | return rc; | |
1395 | } | |
1396 | ||
1397 | dw32(IntrMask, 0); | |
1398 | ||
1399 | rc = request_irq(dev->irq, de_interrupt, IRQF_SHARED, dev->name, dev); | |
1400 | if (rc) { | |
1401 | netdev_err(dev, "IRQ %d request failure, err=%d\n", | |
1402 | dev->irq, rc); | |
1403 | goto err_out_free; | |
1404 | } | |
1405 | ||
1406 | rc = de_init_hw(de); | |
1407 | if (rc) { | |
1408 | netdev_err(dev, "h/w init failure, err=%d\n", rc); | |
1409 | goto err_out_free_irq; | |
1410 | } | |
1411 | ||
1412 | netif_start_queue(dev); | |
1413 | mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK); | |
1414 | ||
1415 | return 0; | |
1416 | ||
1417 | err_out_free_irq: | |
1418 | free_irq(dev->irq, dev); | |
1419 | err_out_free: | |
1420 | de_free_rings(de); | |
1421 | return rc; | |
1422 | } | |
1423 | ||
1424 | static int de_close (struct net_device *dev) | |
1425 | { | |
1426 | struct de_private *de = netdev_priv(dev); | |
1427 | unsigned long flags; | |
1428 | ||
1429 | netif_dbg(de, ifdown, dev, "disabling interface\n"); | |
1430 | ||
1431 | del_timer_sync(&de->media_timer); | |
1432 | ||
1433 | spin_lock_irqsave(&de->lock, flags); | |
1434 | de_stop_hw(de); | |
1435 | netif_stop_queue(dev); | |
1436 | netif_carrier_off(dev); | |
1437 | spin_unlock_irqrestore(&de->lock, flags); | |
1438 | ||
1439 | free_irq(dev->irq, dev); | |
1440 | ||
1441 | de_free_rings(de); | |
1442 | de_adapter_sleep(de); | |
1443 | return 0; | |
1444 | } | |
1445 | ||
1446 | static void de_tx_timeout (struct net_device *dev) | |
1447 | { | |
1448 | struct de_private *de = netdev_priv(dev); | |
1449 | ||
1450 | netdev_dbg(dev, "NIC status %08x mode %08x sia %08x desc %u/%u/%u\n", | |
1451 | dr32(MacStatus), dr32(MacMode), dr32(SIAStatus), | |
1452 | de->rx_tail, de->tx_head, de->tx_tail); | |
1453 | ||
1454 | del_timer_sync(&de->media_timer); | |
1455 | ||
1456 | disable_irq(dev->irq); | |
1457 | spin_lock_irq(&de->lock); | |
1458 | ||
1459 | de_stop_hw(de); | |
1460 | netif_stop_queue(dev); | |
1461 | netif_carrier_off(dev); | |
1462 | ||
1463 | spin_unlock_irq(&de->lock); | |
1464 | enable_irq(dev->irq); | |
1465 | ||
1466 | /* Update the error counts. */ | |
1467 | __de_get_stats(de); | |
1468 | ||
1469 | synchronize_irq(dev->irq); | |
1470 | de_clean_rings(de); | |
1471 | ||
1472 | de_init_rings(de); | |
1473 | ||
1474 | de_init_hw(de); | |
1475 | ||
1476 | netif_wake_queue(dev); | |
1477 | } | |
1478 | ||
1479 | static void __de_get_regs(struct de_private *de, u8 *buf) | |
1480 | { | |
1481 | int i; | |
1482 | u32 *rbuf = (u32 *)buf; | |
1483 | ||
1484 | /* read all CSRs */ | |
1485 | for (i = 0; i < DE_NUM_REGS; i++) | |
1486 | rbuf[i] = dr32(i * 8); | |
1487 | ||
1488 | /* handle self-clearing RxMissed counter, CSR8 */ | |
1489 | de_rx_missed(de, rbuf[8]); | |
1490 | } | |
1491 | ||
1492 | static int __de_get_settings(struct de_private *de, struct ethtool_cmd *ecmd) | |
1493 | { | |
1494 | ecmd->supported = de->media_supported; | |
1495 | ecmd->transceiver = XCVR_INTERNAL; | |
1496 | ecmd->phy_address = 0; | |
1497 | ecmd->advertising = de->media_advertise; | |
1498 | ||
1499 | switch (de->media_type) { | |
1500 | case DE_MEDIA_AUI: | |
1501 | ecmd->port = PORT_AUI; | |
1502 | break; | |
1503 | case DE_MEDIA_BNC: | |
1504 | ecmd->port = PORT_BNC; | |
1505 | break; | |
1506 | default: | |
1507 | ecmd->port = PORT_TP; | |
1508 | break; | |
1509 | } | |
1510 | ||
1511 | ethtool_cmd_speed_set(ecmd, 10); | |
1512 | ||
1513 | if (dr32(MacMode) & FullDuplex) | |
1514 | ecmd->duplex = DUPLEX_FULL; | |
1515 | else | |
1516 | ecmd->duplex = DUPLEX_HALF; | |
1517 | ||
1518 | if (de->media_lock) | |
1519 | ecmd->autoneg = AUTONEG_DISABLE; | |
1520 | else | |
1521 | ecmd->autoneg = AUTONEG_ENABLE; | |
1522 | ||
1523 | /* ignore maxtxpkt, maxrxpkt for now */ | |
1524 | ||
1525 | return 0; | |
1526 | } | |
1527 | ||
1528 | static int __de_set_settings(struct de_private *de, struct ethtool_cmd *ecmd) | |
1529 | { | |
1530 | u32 new_media; | |
1531 | unsigned int media_lock; | |
1532 | ||
1533 | if (ethtool_cmd_speed(ecmd) != 10) | |
1534 | return -EINVAL; | |
1535 | if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL) | |
1536 | return -EINVAL; | |
1537 | if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI && ecmd->port != PORT_BNC) | |
1538 | return -EINVAL; | |
1539 | if (de->de21040 && ecmd->port == PORT_BNC) | |
1540 | return -EINVAL; | |
1541 | if (ecmd->transceiver != XCVR_INTERNAL) | |
1542 | return -EINVAL; | |
1543 | if (ecmd->autoneg != AUTONEG_DISABLE && ecmd->autoneg != AUTONEG_ENABLE) | |
1544 | return -EINVAL; | |
1545 | if (ecmd->advertising & ~de->media_supported) | |
1546 | return -EINVAL; | |
1547 | if (ecmd->autoneg == AUTONEG_ENABLE && | |
1548 | (!(ecmd->advertising & ADVERTISED_Autoneg))) | |
1549 | return -EINVAL; | |
1550 | ||
1551 | switch (ecmd->port) { | |
1552 | case PORT_AUI: | |
1553 | new_media = DE_MEDIA_AUI; | |
1554 | if (!(ecmd->advertising & ADVERTISED_AUI)) | |
1555 | return -EINVAL; | |
1556 | break; | |
1557 | case PORT_BNC: | |
1558 | new_media = DE_MEDIA_BNC; | |
1559 | if (!(ecmd->advertising & ADVERTISED_BNC)) | |
1560 | return -EINVAL; | |
1561 | break; | |
1562 | default: | |
1563 | if (ecmd->autoneg == AUTONEG_ENABLE) | |
1564 | new_media = DE_MEDIA_TP_AUTO; | |
1565 | else if (ecmd->duplex == DUPLEX_FULL) | |
1566 | new_media = DE_MEDIA_TP_FD; | |
1567 | else | |
1568 | new_media = DE_MEDIA_TP; | |
1569 | if (!(ecmd->advertising & ADVERTISED_TP)) | |
1570 | return -EINVAL; | |
1571 | if (!(ecmd->advertising & (ADVERTISED_10baseT_Full | ADVERTISED_10baseT_Half))) | |
1572 | return -EINVAL; | |
1573 | break; | |
1574 | } | |
1575 | ||
1576 | media_lock = (ecmd->autoneg == AUTONEG_ENABLE) ? 0 : 1; | |
1577 | ||
1578 | if ((new_media == de->media_type) && | |
1579 | (media_lock == de->media_lock) && | |
1580 | (ecmd->advertising == de->media_advertise)) | |
1581 | return 0; /* nothing to change */ | |
1582 | ||
1583 | de_link_down(de); | |
1584 | mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK); | |
1585 | de_stop_rxtx(de); | |
1586 | ||
1587 | de->media_type = new_media; | |
1588 | de->media_lock = media_lock; | |
1589 | de->media_advertise = ecmd->advertising; | |
1590 | de_set_media(de); | |
1591 | if (netif_running(de->dev)) | |
1592 | de_start_rxtx(de); | |
1593 | ||
1594 | return 0; | |
1595 | } | |
1596 | ||
1597 | static void de_get_drvinfo (struct net_device *dev,struct ethtool_drvinfo *info) | |
1598 | { | |
1599 | struct de_private *de = netdev_priv(dev); | |
1600 | ||
1601 | strcpy (info->driver, DRV_NAME); | |
1602 | strcpy (info->version, DRV_VERSION); | |
1603 | strcpy (info->bus_info, pci_name(de->pdev)); | |
1604 | info->eedump_len = DE_EEPROM_SIZE; | |
1605 | } | |
1606 | ||
1607 | static int de_get_regs_len(struct net_device *dev) | |
1608 | { | |
1609 | return DE_REGS_SIZE; | |
1610 | } | |
1611 | ||
1612 | static int de_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1613 | { | |
1614 | struct de_private *de = netdev_priv(dev); | |
1615 | int rc; | |
1616 | ||
1617 | spin_lock_irq(&de->lock); | |
1618 | rc = __de_get_settings(de, ecmd); | |
1619 | spin_unlock_irq(&de->lock); | |
1620 | ||
1621 | return rc; | |
1622 | } | |
1623 | ||
1624 | static int de_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1625 | { | |
1626 | struct de_private *de = netdev_priv(dev); | |
1627 | int rc; | |
1628 | ||
1629 | spin_lock_irq(&de->lock); | |
1630 | rc = __de_set_settings(de, ecmd); | |
1631 | spin_unlock_irq(&de->lock); | |
1632 | ||
1633 | return rc; | |
1634 | } | |
1635 | ||
1636 | static u32 de_get_msglevel(struct net_device *dev) | |
1637 | { | |
1638 | struct de_private *de = netdev_priv(dev); | |
1639 | ||
1640 | return de->msg_enable; | |
1641 | } | |
1642 | ||
1643 | static void de_set_msglevel(struct net_device *dev, u32 msglvl) | |
1644 | { | |
1645 | struct de_private *de = netdev_priv(dev); | |
1646 | ||
1647 | de->msg_enable = msglvl; | |
1648 | } | |
1649 | ||
1650 | static int de_get_eeprom(struct net_device *dev, | |
1651 | struct ethtool_eeprom *eeprom, u8 *data) | |
1652 | { | |
1653 | struct de_private *de = netdev_priv(dev); | |
1654 | ||
1655 | if (!de->ee_data) | |
1656 | return -EOPNOTSUPP; | |
1657 | if ((eeprom->offset != 0) || (eeprom->magic != 0) || | |
1658 | (eeprom->len != DE_EEPROM_SIZE)) | |
1659 | return -EINVAL; | |
1660 | memcpy(data, de->ee_data, eeprom->len); | |
1661 | ||
1662 | return 0; | |
1663 | } | |
1664 | ||
1665 | static int de_nway_reset(struct net_device *dev) | |
1666 | { | |
1667 | struct de_private *de = netdev_priv(dev); | |
1668 | u32 status; | |
1669 | ||
1670 | if (de->media_type != DE_MEDIA_TP_AUTO) | |
1671 | return -EINVAL; | |
1672 | if (netif_carrier_ok(de->dev)) | |
1673 | de_link_down(de); | |
1674 | ||
1675 | status = dr32(SIAStatus); | |
1676 | dw32(SIAStatus, (status & ~NWayState) | NWayRestart); | |
1677 | netif_info(de, link, dev, "link nway restart, status %x,%x\n", | |
1678 | status, dr32(SIAStatus)); | |
1679 | return 0; | |
1680 | } | |
1681 | ||
1682 | static void de_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
1683 | void *data) | |
1684 | { | |
1685 | struct de_private *de = netdev_priv(dev); | |
1686 | ||
1687 | regs->version = (DE_REGS_VER << 2) | de->de21040; | |
1688 | ||
1689 | spin_lock_irq(&de->lock); | |
1690 | __de_get_regs(de, data); | |
1691 | spin_unlock_irq(&de->lock); | |
1692 | } | |
1693 | ||
1694 | static const struct ethtool_ops de_ethtool_ops = { | |
1695 | .get_link = ethtool_op_get_link, | |
1696 | .get_drvinfo = de_get_drvinfo, | |
1697 | .get_regs_len = de_get_regs_len, | |
1698 | .get_settings = de_get_settings, | |
1699 | .set_settings = de_set_settings, | |
1700 | .get_msglevel = de_get_msglevel, | |
1701 | .set_msglevel = de_set_msglevel, | |
1702 | .get_eeprom = de_get_eeprom, | |
1703 | .nway_reset = de_nway_reset, | |
1704 | .get_regs = de_get_regs, | |
1705 | }; | |
1706 | ||
1707 | static void __devinit de21040_get_mac_address (struct de_private *de) | |
1708 | { | |
1709 | unsigned i; | |
1710 | ||
1711 | dw32 (ROMCmd, 0); /* Reset the pointer with a dummy write. */ | |
1712 | udelay(5); | |
1713 | ||
1714 | for (i = 0; i < 6; i++) { | |
1715 | int value, boguscnt = 100000; | |
1716 | do { | |
1717 | value = dr32(ROMCmd); | |
1718 | rmb(); | |
1719 | } while (value < 0 && --boguscnt > 0); | |
1720 | de->dev->dev_addr[i] = value; | |
1721 | udelay(1); | |
1722 | if (boguscnt <= 0) | |
1723 | pr_warn("timeout reading 21040 MAC address byte %u\n", | |
1724 | i); | |
1725 | } | |
1726 | } | |
1727 | ||
1728 | static void __devinit de21040_get_media_info(struct de_private *de) | |
1729 | { | |
1730 | unsigned int i; | |
1731 | ||
1732 | de->media_type = DE_MEDIA_TP; | |
1733 | de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Full | | |
1734 | SUPPORTED_10baseT_Half | SUPPORTED_AUI; | |
1735 | de->media_advertise = de->media_supported; | |
1736 | ||
1737 | for (i = 0; i < DE_MAX_MEDIA; i++) { | |
1738 | switch (i) { | |
1739 | case DE_MEDIA_AUI: | |
1740 | case DE_MEDIA_TP: | |
1741 | case DE_MEDIA_TP_FD: | |
1742 | de->media[i].type = i; | |
1743 | de->media[i].csr13 = t21040_csr13[i]; | |
1744 | de->media[i].csr14 = t21040_csr14[i]; | |
1745 | de->media[i].csr15 = t21040_csr15[i]; | |
1746 | break; | |
1747 | default: | |
1748 | de->media[i].type = DE_MEDIA_INVALID; | |
1749 | break; | |
1750 | } | |
1751 | } | |
1752 | } | |
1753 | ||
1754 | /* Note: this routine returns extra data bits for size detection. */ | |
1755 | static unsigned __devinit tulip_read_eeprom(void __iomem *regs, int location, int addr_len) | |
1756 | { | |
1757 | int i; | |
1758 | unsigned retval = 0; | |
1759 | void __iomem *ee_addr = regs + ROMCmd; | |
1760 | int read_cmd = location | (EE_READ_CMD << addr_len); | |
1761 | ||
1762 | writel(EE_ENB & ~EE_CS, ee_addr); | |
1763 | writel(EE_ENB, ee_addr); | |
1764 | ||
1765 | /* Shift the read command bits out. */ | |
1766 | for (i = 4 + addr_len; i >= 0; i--) { | |
1767 | short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; | |
1768 | writel(EE_ENB | dataval, ee_addr); | |
1769 | readl(ee_addr); | |
1770 | writel(EE_ENB | dataval | EE_SHIFT_CLK, ee_addr); | |
1771 | readl(ee_addr); | |
1772 | retval = (retval << 1) | ((readl(ee_addr) & EE_DATA_READ) ? 1 : 0); | |
1773 | } | |
1774 | writel(EE_ENB, ee_addr); | |
1775 | readl(ee_addr); | |
1776 | ||
1777 | for (i = 16; i > 0; i--) { | |
1778 | writel(EE_ENB | EE_SHIFT_CLK, ee_addr); | |
1779 | readl(ee_addr); | |
1780 | retval = (retval << 1) | ((readl(ee_addr) & EE_DATA_READ) ? 1 : 0); | |
1781 | writel(EE_ENB, ee_addr); | |
1782 | readl(ee_addr); | |
1783 | } | |
1784 | ||
1785 | /* Terminate the EEPROM access. */ | |
1786 | writel(EE_ENB & ~EE_CS, ee_addr); | |
1787 | return retval; | |
1788 | } | |
1789 | ||
1790 | static void __devinit de21041_get_srom_info (struct de_private *de) | |
1791 | { | |
1792 | unsigned i, sa_offset = 0, ofs; | |
1793 | u8 ee_data[DE_EEPROM_SIZE + 6] = {}; | |
1794 | unsigned ee_addr_size = tulip_read_eeprom(de->regs, 0xff, 8) & 0x40000 ? 8 : 6; | |
1795 | struct de_srom_info_leaf *il; | |
1796 | void *bufp; | |
1797 | ||
1798 | /* download entire eeprom */ | |
1799 | for (i = 0; i < DE_EEPROM_WORDS; i++) | |
1800 | ((__le16 *)ee_data)[i] = | |
1801 | cpu_to_le16(tulip_read_eeprom(de->regs, i, ee_addr_size)); | |
1802 | ||
1803 | /* DEC now has a specification but early board makers | |
1804 | just put the address in the first EEPROM locations. */ | |
1805 | /* This does memcmp(eedata, eedata+16, 8) */ | |
1806 | ||
1807 | #ifndef CONFIG_MIPS_COBALT | |
1808 | ||
1809 | for (i = 0; i < 8; i ++) | |
1810 | if (ee_data[i] != ee_data[16+i]) | |
1811 | sa_offset = 20; | |
1812 | ||
1813 | #endif | |
1814 | ||
1815 | /* store MAC address */ | |
1816 | for (i = 0; i < 6; i ++) | |
1817 | de->dev->dev_addr[i] = ee_data[i + sa_offset]; | |
1818 | ||
1819 | /* get offset of controller 0 info leaf. ignore 2nd byte. */ | |
1820 | ofs = ee_data[SROMC0InfoLeaf]; | |
1821 | if (ofs >= (sizeof(ee_data) - sizeof(struct de_srom_info_leaf) - sizeof(struct de_srom_media_block))) | |
1822 | goto bad_srom; | |
1823 | ||
1824 | /* get pointer to info leaf */ | |
1825 | il = (struct de_srom_info_leaf *) &ee_data[ofs]; | |
1826 | ||
1827 | /* paranoia checks */ | |
1828 | if (il->n_blocks == 0) | |
1829 | goto bad_srom; | |
1830 | if ((sizeof(ee_data) - ofs) < | |
1831 | (sizeof(struct de_srom_info_leaf) + (sizeof(struct de_srom_media_block) * il->n_blocks))) | |
1832 | goto bad_srom; | |
1833 | ||
1834 | /* get default media type */ | |
1835 | switch (get_unaligned(&il->default_media)) { | |
1836 | case 0x0001: de->media_type = DE_MEDIA_BNC; break; | |
1837 | case 0x0002: de->media_type = DE_MEDIA_AUI; break; | |
1838 | case 0x0204: de->media_type = DE_MEDIA_TP_FD; break; | |
1839 | default: de->media_type = DE_MEDIA_TP_AUTO; break; | |
1840 | } | |
1841 | ||
1842 | if (netif_msg_probe(de)) | |
1843 | pr_info("de%d: SROM leaf offset %u, default media %s\n", | |
1844 | de->board_idx, ofs, media_name[de->media_type]); | |
1845 | ||
1846 | /* init SIA register values to defaults */ | |
1847 | for (i = 0; i < DE_MAX_MEDIA; i++) { | |
1848 | de->media[i].type = DE_MEDIA_INVALID; | |
1849 | de->media[i].csr13 = 0xffff; | |
1850 | de->media[i].csr14 = 0xffff; | |
1851 | de->media[i].csr15 = 0xffff; | |
1852 | } | |
1853 | ||
1854 | /* parse media blocks to see what medias are supported, | |
1855 | * and if any custom CSR values are provided | |
1856 | */ | |
1857 | bufp = ((void *)il) + sizeof(*il); | |
1858 | for (i = 0; i < il->n_blocks; i++) { | |
1859 | struct de_srom_media_block *ib = bufp; | |
1860 | unsigned idx; | |
1861 | ||
1862 | /* index based on media type in media block */ | |
1863 | switch(ib->opts & MediaBlockMask) { | |
1864 | case 0: /* 10baseT */ | |
1865 | de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half | |
1866 | | SUPPORTED_Autoneg; | |
1867 | idx = DE_MEDIA_TP; | |
1868 | de->media[DE_MEDIA_TP_AUTO].type = DE_MEDIA_TP_AUTO; | |
1869 | break; | |
1870 | case 1: /* BNC */ | |
1871 | de->media_supported |= SUPPORTED_BNC; | |
1872 | idx = DE_MEDIA_BNC; | |
1873 | break; | |
1874 | case 2: /* AUI */ | |
1875 | de->media_supported |= SUPPORTED_AUI; | |
1876 | idx = DE_MEDIA_AUI; | |
1877 | break; | |
1878 | case 4: /* 10baseT-FD */ | |
1879 | de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Full | |
1880 | | SUPPORTED_Autoneg; | |
1881 | idx = DE_MEDIA_TP_FD; | |
1882 | de->media[DE_MEDIA_TP_AUTO].type = DE_MEDIA_TP_AUTO; | |
1883 | break; | |
1884 | default: | |
1885 | goto bad_srom; | |
1886 | } | |
1887 | ||
1888 | de->media[idx].type = idx; | |
1889 | ||
1890 | if (netif_msg_probe(de)) | |
1891 | pr_info("de%d: media block #%u: %s", | |
1892 | de->board_idx, i, | |
1893 | media_name[de->media[idx].type]); | |
1894 | ||
1895 | bufp += sizeof (ib->opts); | |
1896 | ||
1897 | if (ib->opts & MediaCustomCSRs) { | |
1898 | de->media[idx].csr13 = get_unaligned(&ib->csr13); | |
1899 | de->media[idx].csr14 = get_unaligned(&ib->csr14); | |
1900 | de->media[idx].csr15 = get_unaligned(&ib->csr15); | |
1901 | bufp += sizeof(ib->csr13) + sizeof(ib->csr14) + | |
1902 | sizeof(ib->csr15); | |
1903 | ||
1904 | if (netif_msg_probe(de)) | |
1905 | pr_cont(" (%x,%x,%x)\n", | |
1906 | de->media[idx].csr13, | |
1907 | de->media[idx].csr14, | |
1908 | de->media[idx].csr15); | |
1909 | ||
1910 | } else { | |
1911 | if (netif_msg_probe(de)) | |
1912 | pr_cont("\n"); | |
1913 | } | |
1914 | ||
1915 | if (bufp > ((void *)&ee_data[DE_EEPROM_SIZE - 3])) | |
1916 | break; | |
1917 | } | |
1918 | ||
1919 | de->media_advertise = de->media_supported; | |
1920 | ||
1921 | fill_defaults: | |
1922 | /* fill in defaults, for cases where custom CSRs not used */ | |
1923 | for (i = 0; i < DE_MAX_MEDIA; i++) { | |
1924 | if (de->media[i].csr13 == 0xffff) | |
1925 | de->media[i].csr13 = t21041_csr13[i]; | |
1926 | if (de->media[i].csr14 == 0xffff) { | |
1927 | /* autonegotiation is broken at least on some chip | |
1928 | revisions - rev. 0x21 works, 0x11 does not */ | |
1929 | if (de->pdev->revision < 0x20) | |
1930 | de->media[i].csr14 = t21041_csr14_brk[i]; | |
1931 | else | |
1932 | de->media[i].csr14 = t21041_csr14[i]; | |
1933 | } | |
1934 | if (de->media[i].csr15 == 0xffff) | |
1935 | de->media[i].csr15 = t21041_csr15[i]; | |
1936 | } | |
1937 | ||
1938 | de->ee_data = kmemdup(&ee_data[0], DE_EEPROM_SIZE, GFP_KERNEL); | |
1939 | ||
1940 | return; | |
1941 | ||
1942 | bad_srom: | |
1943 | /* for error cases, it's ok to assume we support all these */ | |
1944 | for (i = 0; i < DE_MAX_MEDIA; i++) | |
1945 | de->media[i].type = i; | |
1946 | de->media_supported = | |
1947 | SUPPORTED_10baseT_Half | | |
1948 | SUPPORTED_10baseT_Full | | |
1949 | SUPPORTED_Autoneg | | |
1950 | SUPPORTED_TP | | |
1951 | SUPPORTED_AUI | | |
1952 | SUPPORTED_BNC; | |
1953 | goto fill_defaults; | |
1954 | } | |
1955 | ||
1956 | static const struct net_device_ops de_netdev_ops = { | |
1957 | .ndo_open = de_open, | |
1958 | .ndo_stop = de_close, | |
1959 | .ndo_set_multicast_list = de_set_rx_mode, | |
1960 | .ndo_start_xmit = de_start_xmit, | |
1961 | .ndo_get_stats = de_get_stats, | |
1962 | .ndo_tx_timeout = de_tx_timeout, | |
1963 | .ndo_change_mtu = eth_change_mtu, | |
1964 | .ndo_set_mac_address = eth_mac_addr, | |
1965 | .ndo_validate_addr = eth_validate_addr, | |
1966 | }; | |
1967 | ||
1968 | static int __devinit de_init_one (struct pci_dev *pdev, | |
1969 | const struct pci_device_id *ent) | |
1970 | { | |
1971 | struct net_device *dev; | |
1972 | struct de_private *de; | |
1973 | int rc; | |
1974 | void __iomem *regs; | |
1975 | unsigned long pciaddr; | |
1976 | static int board_idx = -1; | |
1977 | ||
1978 | board_idx++; | |
1979 | ||
1980 | #ifndef MODULE | |
1981 | if (board_idx == 0) | |
1982 | pr_info("%s\n", version); | |
1983 | #endif | |
1984 | ||
1985 | /* allocate a new ethernet device structure, and fill in defaults */ | |
1986 | dev = alloc_etherdev(sizeof(struct de_private)); | |
1987 | if (!dev) | |
1988 | return -ENOMEM; | |
1989 | ||
1990 | dev->netdev_ops = &de_netdev_ops; | |
1991 | SET_NETDEV_DEV(dev, &pdev->dev); | |
1992 | dev->ethtool_ops = &de_ethtool_ops; | |
1993 | dev->watchdog_timeo = TX_TIMEOUT; | |
1994 | ||
1995 | de = netdev_priv(dev); | |
1996 | de->de21040 = ent->driver_data == 0 ? 1 : 0; | |
1997 | de->pdev = pdev; | |
1998 | de->dev = dev; | |
1999 | de->msg_enable = (debug < 0 ? DE_DEF_MSG_ENABLE : debug); | |
2000 | de->board_idx = board_idx; | |
2001 | spin_lock_init (&de->lock); | |
2002 | init_timer(&de->media_timer); | |
2003 | if (de->de21040) | |
2004 | de->media_timer.function = de21040_media_timer; | |
2005 | else | |
2006 | de->media_timer.function = de21041_media_timer; | |
2007 | de->media_timer.data = (unsigned long) de; | |
2008 | ||
2009 | netif_carrier_off(dev); | |
2010 | ||
2011 | /* wake up device, assign resources */ | |
2012 | rc = pci_enable_device(pdev); | |
2013 | if (rc) | |
2014 | goto err_out_free; | |
2015 | ||
2016 | /* reserve PCI resources to ensure driver atomicity */ | |
2017 | rc = pci_request_regions(pdev, DRV_NAME); | |
2018 | if (rc) | |
2019 | goto err_out_disable; | |
2020 | ||
2021 | /* check for invalid IRQ value */ | |
2022 | if (pdev->irq < 2) { | |
2023 | rc = -EIO; | |
2024 | pr_err("invalid irq (%d) for pci dev %s\n", | |
2025 | pdev->irq, pci_name(pdev)); | |
2026 | goto err_out_res; | |
2027 | } | |
2028 | ||
2029 | dev->irq = pdev->irq; | |
2030 | ||
2031 | /* obtain and check validity of PCI I/O address */ | |
2032 | pciaddr = pci_resource_start(pdev, 1); | |
2033 | if (!pciaddr) { | |
2034 | rc = -EIO; | |
2035 | pr_err("no MMIO resource for pci dev %s\n", pci_name(pdev)); | |
2036 | goto err_out_res; | |
2037 | } | |
2038 | if (pci_resource_len(pdev, 1) < DE_REGS_SIZE) { | |
2039 | rc = -EIO; | |
2040 | pr_err("MMIO resource (%llx) too small on pci dev %s\n", | |
2041 | (unsigned long long)pci_resource_len(pdev, 1), | |
2042 | pci_name(pdev)); | |
2043 | goto err_out_res; | |
2044 | } | |
2045 | ||
2046 | /* remap CSR registers */ | |
2047 | regs = ioremap_nocache(pciaddr, DE_REGS_SIZE); | |
2048 | if (!regs) { | |
2049 | rc = -EIO; | |
2050 | pr_err("Cannot map PCI MMIO (%llx@%lx) on pci dev %s\n", | |
2051 | (unsigned long long)pci_resource_len(pdev, 1), | |
2052 | pciaddr, pci_name(pdev)); | |
2053 | goto err_out_res; | |
2054 | } | |
2055 | dev->base_addr = (unsigned long) regs; | |
2056 | de->regs = regs; | |
2057 | ||
2058 | de_adapter_wake(de); | |
2059 | ||
2060 | /* make sure hardware is not running */ | |
2061 | rc = de_reset_mac(de); | |
2062 | if (rc) { | |
2063 | pr_err("Cannot reset MAC, pci dev %s\n", pci_name(pdev)); | |
2064 | goto err_out_iomap; | |
2065 | } | |
2066 | ||
2067 | /* get MAC address, initialize default media type and | |
2068 | * get list of supported media | |
2069 | */ | |
2070 | if (de->de21040) { | |
2071 | de21040_get_mac_address(de); | |
2072 | de21040_get_media_info(de); | |
2073 | } else { | |
2074 | de21041_get_srom_info(de); | |
2075 | } | |
2076 | ||
2077 | /* register new network interface with kernel */ | |
2078 | rc = register_netdev(dev); | |
2079 | if (rc) | |
2080 | goto err_out_iomap; | |
2081 | ||
2082 | /* print info about board and interface just registered */ | |
2083 | netdev_info(dev, "%s at 0x%lx, %pM, IRQ %d\n", | |
2084 | de->de21040 ? "21040" : "21041", | |
2085 | dev->base_addr, | |
2086 | dev->dev_addr, | |
2087 | dev->irq); | |
2088 | ||
2089 | pci_set_drvdata(pdev, dev); | |
2090 | ||
2091 | /* enable busmastering */ | |
2092 | pci_set_master(pdev); | |
2093 | ||
2094 | /* put adapter to sleep */ | |
2095 | de_adapter_sleep(de); | |
2096 | ||
2097 | return 0; | |
2098 | ||
2099 | err_out_iomap: | |
2100 | kfree(de->ee_data); | |
2101 | iounmap(regs); | |
2102 | err_out_res: | |
2103 | pci_release_regions(pdev); | |
2104 | err_out_disable: | |
2105 | pci_disable_device(pdev); | |
2106 | err_out_free: | |
2107 | free_netdev(dev); | |
2108 | return rc; | |
2109 | } | |
2110 | ||
2111 | static void __devexit de_remove_one (struct pci_dev *pdev) | |
2112 | { | |
2113 | struct net_device *dev = pci_get_drvdata(pdev); | |
2114 | struct de_private *de = netdev_priv(dev); | |
2115 | ||
2116 | BUG_ON(!dev); | |
2117 | unregister_netdev(dev); | |
2118 | kfree(de->ee_data); | |
2119 | iounmap(de->regs); | |
2120 | pci_release_regions(pdev); | |
2121 | pci_disable_device(pdev); | |
2122 | pci_set_drvdata(pdev, NULL); | |
2123 | free_netdev(dev); | |
2124 | } | |
2125 | ||
2126 | #ifdef CONFIG_PM | |
2127 | ||
2128 | static int de_suspend (struct pci_dev *pdev, pm_message_t state) | |
2129 | { | |
2130 | struct net_device *dev = pci_get_drvdata (pdev); | |
2131 | struct de_private *de = netdev_priv(dev); | |
2132 | ||
2133 | rtnl_lock(); | |
2134 | if (netif_running (dev)) { | |
2135 | del_timer_sync(&de->media_timer); | |
2136 | ||
2137 | disable_irq(dev->irq); | |
2138 | spin_lock_irq(&de->lock); | |
2139 | ||
2140 | de_stop_hw(de); | |
2141 | netif_stop_queue(dev); | |
2142 | netif_device_detach(dev); | |
2143 | netif_carrier_off(dev); | |
2144 | ||
2145 | spin_unlock_irq(&de->lock); | |
2146 | enable_irq(dev->irq); | |
2147 | ||
2148 | /* Update the error counts. */ | |
2149 | __de_get_stats(de); | |
2150 | ||
2151 | synchronize_irq(dev->irq); | |
2152 | de_clean_rings(de); | |
2153 | ||
2154 | de_adapter_sleep(de); | |
2155 | pci_disable_device(pdev); | |
2156 | } else { | |
2157 | netif_device_detach(dev); | |
2158 | } | |
2159 | rtnl_unlock(); | |
2160 | return 0; | |
2161 | } | |
2162 | ||
2163 | static int de_resume (struct pci_dev *pdev) | |
2164 | { | |
2165 | struct net_device *dev = pci_get_drvdata (pdev); | |
2166 | struct de_private *de = netdev_priv(dev); | |
2167 | int retval = 0; | |
2168 | ||
2169 | rtnl_lock(); | |
2170 | if (netif_device_present(dev)) | |
2171 | goto out; | |
2172 | if (!netif_running(dev)) | |
2173 | goto out_attach; | |
2174 | if ((retval = pci_enable_device(pdev))) { | |
2175 | netdev_err(dev, "pci_enable_device failed in resume\n"); | |
2176 | goto out; | |
2177 | } | |
2178 | pci_set_master(pdev); | |
2179 | de_init_rings(de); | |
2180 | de_init_hw(de); | |
2181 | out_attach: | |
2182 | netif_device_attach(dev); | |
2183 | out: | |
2184 | rtnl_unlock(); | |
2185 | return 0; | |
2186 | } | |
2187 | ||
2188 | #endif /* CONFIG_PM */ | |
2189 | ||
2190 | static struct pci_driver de_driver = { | |
2191 | .name = DRV_NAME, | |
2192 | .id_table = de_pci_tbl, | |
2193 | .probe = de_init_one, | |
2194 | .remove = __devexit_p(de_remove_one), | |
2195 | #ifdef CONFIG_PM | |
2196 | .suspend = de_suspend, | |
2197 | .resume = de_resume, | |
2198 | #endif | |
2199 | }; | |
2200 | ||
2201 | static int __init de_init (void) | |
2202 | { | |
2203 | #ifdef MODULE | |
2204 | pr_info("%s\n", version); | |
2205 | #endif | |
2206 | return pci_register_driver(&de_driver); | |
2207 | } | |
2208 | ||
2209 | static void __exit de_exit (void) | |
2210 | { | |
2211 | pci_unregister_driver (&de_driver); | |
2212 | } | |
2213 | ||
2214 | module_init(de_init); | |
2215 | module_exit(de_exit); |