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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> | |
5a0e3ad6 | 45 | #include <linux/slab.h> |
1da177e4 LT |
46 | |
47 | #include <asm/io.h> | |
48 | #include <asm/irq.h> | |
49 | #include <asm/uaccess.h> | |
50 | #include <asm/unaligned.h> | |
51 | ||
52 | /* These identify the driver base version and may not be removed. */ | |
53 | static char version[] = | |
54 | KERN_INFO DRV_NAME " PCI Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")\n"; | |
55 | ||
56 | MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>"); | |
57 | MODULE_DESCRIPTION("Intel/Digital 21040/1 series PCI Ethernet driver"); | |
58 | MODULE_LICENSE("GPL"); | |
59 | MODULE_VERSION(DRV_VERSION); | |
60 | ||
61 | static int debug = -1; | |
62 | module_param (debug, int, 0); | |
63 | MODULE_PARM_DESC (debug, "de2104x bitmapped message enable number"); | |
64 | ||
65 | /* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */ | |
8e95a202 JP |
66 | #if defined(__alpha__) || defined(__arm__) || defined(__hppa__) || \ |
67 | defined(CONFIG_SPARC) || defined(__ia64__) || \ | |
68 | defined(__sh__) || defined(__mips__) | |
1da177e4 LT |
69 | static int rx_copybreak = 1518; |
70 | #else | |
71 | static int rx_copybreak = 100; | |
72 | #endif | |
73 | module_param (rx_copybreak, int, 0); | |
74 | MODULE_PARM_DESC (rx_copybreak, "de2104x Breakpoint at which Rx packets are copied"); | |
75 | ||
76 | #define PFX DRV_NAME ": " | |
77 | ||
78 | #define DE_DEF_MSG_ENABLE (NETIF_MSG_DRV | \ | |
79 | NETIF_MSG_PROBE | \ | |
80 | NETIF_MSG_LINK | \ | |
81 | NETIF_MSG_IFDOWN | \ | |
82 | NETIF_MSG_IFUP | \ | |
83 | NETIF_MSG_RX_ERR | \ | |
84 | NETIF_MSG_TX_ERR) | |
85 | ||
b77e5228 RS |
86 | /* Descriptor skip length in 32 bit longwords. */ |
87 | #ifndef CONFIG_DE2104X_DSL | |
88 | #define DSL 0 | |
89 | #else | |
90 | #define DSL CONFIG_DE2104X_DSL | |
91 | #endif | |
92 | ||
1da177e4 LT |
93 | #define DE_RX_RING_SIZE 64 |
94 | #define DE_TX_RING_SIZE 64 | |
95 | #define DE_RING_BYTES \ | |
96 | ((sizeof(struct de_desc) * DE_RX_RING_SIZE) + \ | |
97 | (sizeof(struct de_desc) * DE_TX_RING_SIZE)) | |
98 | #define NEXT_TX(N) (((N) + 1) & (DE_TX_RING_SIZE - 1)) | |
99 | #define NEXT_RX(N) (((N) + 1) & (DE_RX_RING_SIZE - 1)) | |
100 | #define TX_BUFFS_AVAIL(CP) \ | |
101 | (((CP)->tx_tail <= (CP)->tx_head) ? \ | |
102 | (CP)->tx_tail + (DE_TX_RING_SIZE - 1) - (CP)->tx_head : \ | |
103 | (CP)->tx_tail - (CP)->tx_head - 1) | |
104 | ||
105 | #define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/ | |
106 | #define RX_OFFSET 2 | |
107 | ||
108 | #define DE_SETUP_SKB ((struct sk_buff *) 1) | |
109 | #define DE_DUMMY_SKB ((struct sk_buff *) 2) | |
110 | #define DE_SETUP_FRAME_WORDS 96 | |
111 | #define DE_EEPROM_WORDS 256 | |
112 | #define DE_EEPROM_SIZE (DE_EEPROM_WORDS * sizeof(u16)) | |
113 | #define DE_MAX_MEDIA 5 | |
114 | ||
115 | #define DE_MEDIA_TP_AUTO 0 | |
116 | #define DE_MEDIA_BNC 1 | |
117 | #define DE_MEDIA_AUI 2 | |
118 | #define DE_MEDIA_TP 3 | |
119 | #define DE_MEDIA_TP_FD 4 | |
120 | #define DE_MEDIA_INVALID DE_MAX_MEDIA | |
121 | #define DE_MEDIA_FIRST 0 | |
122 | #define DE_MEDIA_LAST (DE_MAX_MEDIA - 1) | |
123 | #define DE_AUI_BNC (SUPPORTED_AUI | SUPPORTED_BNC) | |
124 | ||
125 | #define DE_TIMER_LINK (60 * HZ) | |
126 | #define DE_TIMER_NO_LINK (5 * HZ) | |
127 | ||
128 | #define DE_NUM_REGS 16 | |
129 | #define DE_REGS_SIZE (DE_NUM_REGS * sizeof(u32)) | |
130 | #define DE_REGS_VER 1 | |
131 | ||
132 | /* Time in jiffies before concluding the transmitter is hung. */ | |
133 | #define TX_TIMEOUT (6*HZ) | |
134 | ||
1da177e4 LT |
135 | /* This is a mysterious value that can be written to CSR11 in the 21040 (only) |
136 | to support a pre-NWay full-duplex signaling mechanism using short frames. | |
137 | No one knows what it should be, but if left at its default value some | |
138 | 10base2(!) packets trigger a full-duplex-request interrupt. */ | |
139 | #define FULL_DUPLEX_MAGIC 0x6969 | |
140 | ||
141 | enum { | |
142 | /* NIC registers */ | |
143 | BusMode = 0x00, | |
144 | TxPoll = 0x08, | |
145 | RxPoll = 0x10, | |
146 | RxRingAddr = 0x18, | |
147 | TxRingAddr = 0x20, | |
148 | MacStatus = 0x28, | |
149 | MacMode = 0x30, | |
150 | IntrMask = 0x38, | |
151 | RxMissed = 0x40, | |
152 | ROMCmd = 0x48, | |
153 | CSR11 = 0x58, | |
154 | SIAStatus = 0x60, | |
155 | CSR13 = 0x68, | |
156 | CSR14 = 0x70, | |
157 | CSR15 = 0x78, | |
158 | PCIPM = 0x40, | |
159 | ||
160 | /* BusMode bits */ | |
161 | CmdReset = (1 << 0), | |
162 | CacheAlign16 = 0x00008000, | |
163 | BurstLen4 = 0x00000400, | |
b77e5228 | 164 | DescSkipLen = (DSL << 2), |
1da177e4 LT |
165 | |
166 | /* Rx/TxPoll bits */ | |
167 | NormalTxPoll = (1 << 0), | |
168 | NormalRxPoll = (1 << 0), | |
169 | ||
170 | /* Tx/Rx descriptor status bits */ | |
171 | DescOwn = (1 << 31), | |
172 | RxError = (1 << 15), | |
173 | RxErrLong = (1 << 7), | |
174 | RxErrCRC = (1 << 1), | |
175 | RxErrFIFO = (1 << 0), | |
176 | RxErrRunt = (1 << 11), | |
177 | RxErrFrame = (1 << 14), | |
178 | RingEnd = (1 << 25), | |
179 | FirstFrag = (1 << 29), | |
180 | LastFrag = (1 << 30), | |
181 | TxError = (1 << 15), | |
182 | TxFIFOUnder = (1 << 1), | |
183 | TxLinkFail = (1 << 2) | (1 << 10) | (1 << 11), | |
184 | TxMaxCol = (1 << 8), | |
185 | TxOWC = (1 << 9), | |
186 | TxJabber = (1 << 14), | |
187 | SetupFrame = (1 << 27), | |
188 | TxSwInt = (1 << 31), | |
189 | ||
190 | /* MacStatus bits */ | |
191 | IntrOK = (1 << 16), | |
192 | IntrErr = (1 << 15), | |
193 | RxIntr = (1 << 6), | |
194 | RxEmpty = (1 << 7), | |
195 | TxIntr = (1 << 0), | |
196 | TxEmpty = (1 << 2), | |
197 | PciErr = (1 << 13), | |
198 | TxState = (1 << 22) | (1 << 21) | (1 << 20), | |
199 | RxState = (1 << 19) | (1 << 18) | (1 << 17), | |
200 | LinkFail = (1 << 12), | |
201 | LinkPass = (1 << 4), | |
202 | RxStopped = (1 << 8), | |
203 | TxStopped = (1 << 1), | |
204 | ||
205 | /* MacMode bits */ | |
206 | TxEnable = (1 << 13), | |
207 | RxEnable = (1 << 1), | |
208 | RxTx = TxEnable | RxEnable, | |
209 | FullDuplex = (1 << 9), | |
210 | AcceptAllMulticast = (1 << 7), | |
211 | AcceptAllPhys = (1 << 6), | |
212 | BOCnt = (1 << 5), | |
213 | MacModeClear = (1<<12) | (1<<11) | (1<<10) | (1<<8) | (1<<3) | | |
214 | RxTx | BOCnt | AcceptAllPhys | AcceptAllMulticast, | |
215 | ||
216 | /* ROMCmd bits */ | |
217 | EE_SHIFT_CLK = 0x02, /* EEPROM shift clock. */ | |
218 | EE_CS = 0x01, /* EEPROM chip select. */ | |
219 | EE_DATA_WRITE = 0x04, /* Data from the Tulip to EEPROM. */ | |
220 | EE_WRITE_0 = 0x01, | |
221 | EE_WRITE_1 = 0x05, | |
222 | EE_DATA_READ = 0x08, /* Data from the EEPROM chip. */ | |
223 | EE_ENB = (0x4800 | EE_CS), | |
224 | ||
225 | /* The EEPROM commands include the alway-set leading bit. */ | |
226 | EE_READ_CMD = 6, | |
227 | ||
228 | /* RxMissed bits */ | |
229 | RxMissedOver = (1 << 16), | |
230 | RxMissedMask = 0xffff, | |
231 | ||
232 | /* SROM-related bits */ | |
233 | SROMC0InfoLeaf = 27, | |
234 | MediaBlockMask = 0x3f, | |
235 | MediaCustomCSRs = (1 << 6), | |
f3b197ac | 236 | |
1da177e4 LT |
237 | /* PCIPM bits */ |
238 | PM_Sleep = (1 << 31), | |
239 | PM_Snooze = (1 << 30), | |
240 | PM_Mask = PM_Sleep | PM_Snooze, | |
f3b197ac | 241 | |
1da177e4 LT |
242 | /* SIAStatus bits */ |
243 | NWayState = (1 << 14) | (1 << 13) | (1 << 12), | |
244 | NWayRestart = (1 << 12), | |
245 | NonselPortActive = (1 << 9), | |
ca9a7835 | 246 | SelPortActive = (1 << 8), |
1da177e4 LT |
247 | LinkFailStatus = (1 << 2), |
248 | NetCxnErr = (1 << 1), | |
249 | }; | |
250 | ||
251 | static const u32 de_intr_mask = | |
252 | IntrOK | IntrErr | RxIntr | RxEmpty | TxIntr | TxEmpty | | |
253 | LinkPass | LinkFail | PciErr; | |
254 | ||
255 | /* | |
256 | * Set the programmable burst length to 4 longwords for all: | |
257 | * DMA errors result without these values. Cache align 16 long. | |
258 | */ | |
b77e5228 | 259 | static const u32 de_bus_mode = CacheAlign16 | BurstLen4 | DescSkipLen; |
1da177e4 LT |
260 | |
261 | struct de_srom_media_block { | |
262 | u8 opts; | |
263 | u16 csr13; | |
264 | u16 csr14; | |
265 | u16 csr15; | |
ba2d3587 | 266 | } __packed; |
1da177e4 LT |
267 | |
268 | struct de_srom_info_leaf { | |
269 | u16 default_media; | |
270 | u8 n_blocks; | |
271 | u8 unused; | |
ba2d3587 | 272 | } __packed; |
1da177e4 LT |
273 | |
274 | struct de_desc { | |
c559a5bc AV |
275 | __le32 opts1; |
276 | __le32 opts2; | |
277 | __le32 addr1; | |
278 | __le32 addr2; | |
b77e5228 RS |
279 | #if DSL |
280 | __le32 skip[DSL]; | |
281 | #endif | |
1da177e4 LT |
282 | }; |
283 | ||
284 | struct media_info { | |
285 | u16 type; /* DE_MEDIA_xxx */ | |
286 | u16 csr13; | |
287 | u16 csr14; | |
288 | u16 csr15; | |
289 | }; | |
290 | ||
291 | struct ring_info { | |
292 | struct sk_buff *skb; | |
293 | dma_addr_t mapping; | |
294 | }; | |
295 | ||
296 | struct de_private { | |
297 | unsigned tx_head; | |
298 | unsigned tx_tail; | |
299 | unsigned rx_tail; | |
300 | ||
301 | void __iomem *regs; | |
302 | struct net_device *dev; | |
303 | spinlock_t lock; | |
304 | ||
305 | struct de_desc *rx_ring; | |
306 | struct de_desc *tx_ring; | |
307 | struct ring_info tx_skb[DE_TX_RING_SIZE]; | |
308 | struct ring_info rx_skb[DE_RX_RING_SIZE]; | |
309 | unsigned rx_buf_sz; | |
310 | dma_addr_t ring_dma; | |
311 | ||
312 | u32 msg_enable; | |
313 | ||
314 | struct net_device_stats net_stats; | |
315 | ||
316 | struct pci_dev *pdev; | |
317 | ||
318 | u16 setup_frame[DE_SETUP_FRAME_WORDS]; | |
319 | ||
320 | u32 media_type; | |
321 | u32 media_supported; | |
322 | u32 media_advertise; | |
323 | struct media_info media[DE_MAX_MEDIA]; | |
324 | struct timer_list media_timer; | |
325 | ||
326 | u8 *ee_data; | |
327 | unsigned board_idx; | |
328 | unsigned de21040 : 1; | |
329 | unsigned media_lock : 1; | |
330 | }; | |
331 | ||
332 | ||
333 | static void de_set_rx_mode (struct net_device *dev); | |
334 | static void de_tx (struct de_private *de); | |
335 | static void de_clean_rings (struct de_private *de); | |
336 | static void de_media_interrupt (struct de_private *de, u32 status); | |
337 | static void de21040_media_timer (unsigned long data); | |
338 | static void de21041_media_timer (unsigned long data); | |
339 | static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media); | |
340 | ||
341 | ||
a3aa1884 | 342 | static DEFINE_PCI_DEVICE_TABLE(de_pci_tbl) = { |
1da177e4 LT |
343 | { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP, |
344 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
345 | { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_PLUS, | |
346 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 }, | |
347 | { }, | |
348 | }; | |
349 | MODULE_DEVICE_TABLE(pci, de_pci_tbl); | |
350 | ||
351 | static const char * const media_name[DE_MAX_MEDIA] = { | |
352 | "10baseT auto", | |
353 | "BNC", | |
354 | "AUI", | |
355 | "10baseT-HD", | |
356 | "10baseT-FD" | |
357 | }; | |
358 | ||
359 | /* 21040 transceiver register settings: | |
360 | * TP AUTO(unused), BNC(unused), AUI, TP, TP FD*/ | |
361 | static u16 t21040_csr13[] = { 0, 0, 0x8F09, 0x8F01, 0x8F01, }; | |
362 | static u16 t21040_csr14[] = { 0, 0, 0x0705, 0xFFFF, 0xFFFD, }; | |
363 | static u16 t21040_csr15[] = { 0, 0, 0x0006, 0x0000, 0x0000, }; | |
364 | ||
365 | /* 21041 transceiver register settings: TP AUTO, BNC, AUI, TP, TP FD*/ | |
366 | static u16 t21041_csr13[] = { 0xEF01, 0xEF09, 0xEF09, 0xEF01, 0xEF09, }; | |
387a8562 | 367 | static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x7F3F, 0x7F3D, }; |
e0f9c4f3 | 368 | /* If on-chip autonegotiation is broken, use half-duplex (FF3F) instead */ |
387a8562 | 369 | static u16 t21041_csr14_brk[] = { 0xFF3F, 0xF7FD, 0xF7FD, 0x7F3F, 0x7F3D, }; |
1da177e4 LT |
370 | static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, }; |
371 | ||
372 | ||
84cc1535 ML |
373 | #define dr32(reg) ioread32(de->regs + (reg)) |
374 | #define dw32(reg, val) iowrite32((val), de->regs + (reg)) | |
1da177e4 LT |
375 | |
376 | ||
377 | static void de_rx_err_acct (struct de_private *de, unsigned rx_tail, | |
378 | u32 status, u32 len) | |
379 | { | |
380 | if (netif_msg_rx_err (de)) | |
381 | printk (KERN_DEBUG | |
382 | "%s: rx err, slot %d status 0x%x len %d\n", | |
383 | de->dev->name, rx_tail, status, len); | |
384 | ||
385 | if ((status & 0x38000300) != 0x0300) { | |
386 | /* Ingore earlier buffers. */ | |
387 | if ((status & 0xffff) != 0x7fff) { | |
388 | if (netif_msg_rx_err(de)) | |
f639dc7d JP |
389 | dev_warn(&de->dev->dev, |
390 | "Oversized Ethernet frame spanned multiple buffers, status %08x!\n", | |
391 | status); | |
1da177e4 LT |
392 | de->net_stats.rx_length_errors++; |
393 | } | |
394 | } else if (status & RxError) { | |
395 | /* There was a fatal error. */ | |
396 | de->net_stats.rx_errors++; /* end of a packet.*/ | |
397 | if (status & 0x0890) de->net_stats.rx_length_errors++; | |
398 | if (status & RxErrCRC) de->net_stats.rx_crc_errors++; | |
399 | if (status & RxErrFIFO) de->net_stats.rx_fifo_errors++; | |
400 | } | |
401 | } | |
402 | ||
403 | static void de_rx (struct de_private *de) | |
404 | { | |
405 | unsigned rx_tail = de->rx_tail; | |
406 | unsigned rx_work = DE_RX_RING_SIZE; | |
407 | unsigned drop = 0; | |
408 | int rc; | |
409 | ||
46578a69 | 410 | while (--rx_work) { |
1da177e4 LT |
411 | u32 status, len; |
412 | dma_addr_t mapping; | |
413 | struct sk_buff *skb, *copy_skb; | |
414 | unsigned copying_skb, buflen; | |
415 | ||
416 | skb = de->rx_skb[rx_tail].skb; | |
7e0b58f3 | 417 | BUG_ON(!skb); |
1da177e4 LT |
418 | rmb(); |
419 | status = le32_to_cpu(de->rx_ring[rx_tail].opts1); | |
420 | if (status & DescOwn) | |
421 | break; | |
422 | ||
423 | len = ((status >> 16) & 0x7ff) - 4; | |
424 | mapping = de->rx_skb[rx_tail].mapping; | |
425 | ||
426 | if (unlikely(drop)) { | |
427 | de->net_stats.rx_dropped++; | |
428 | goto rx_next; | |
429 | } | |
430 | ||
431 | if (unlikely((status & 0x38008300) != 0x0300)) { | |
432 | de_rx_err_acct(de, rx_tail, status, len); | |
433 | goto rx_next; | |
434 | } | |
435 | ||
436 | copying_skb = (len <= rx_copybreak); | |
437 | ||
438 | if (unlikely(netif_msg_rx_status(de))) | |
439 | printk(KERN_DEBUG "%s: rx slot %d status 0x%x len %d copying? %d\n", | |
440 | de->dev->name, rx_tail, status, len, | |
441 | copying_skb); | |
442 | ||
443 | buflen = copying_skb ? (len + RX_OFFSET) : de->rx_buf_sz; | |
444 | copy_skb = dev_alloc_skb (buflen); | |
445 | if (unlikely(!copy_skb)) { | |
446 | de->net_stats.rx_dropped++; | |
447 | drop = 1; | |
448 | rx_work = 100; | |
449 | goto rx_next; | |
450 | } | |
1da177e4 LT |
451 | |
452 | if (!copying_skb) { | |
453 | pci_unmap_single(de->pdev, mapping, | |
454 | buflen, PCI_DMA_FROMDEVICE); | |
455 | skb_put(skb, len); | |
456 | ||
457 | mapping = | |
458 | de->rx_skb[rx_tail].mapping = | |
689be439 | 459 | pci_map_single(de->pdev, copy_skb->data, |
1da177e4 LT |
460 | buflen, PCI_DMA_FROMDEVICE); |
461 | de->rx_skb[rx_tail].skb = copy_skb; | |
462 | } else { | |
463 | pci_dma_sync_single_for_cpu(de->pdev, mapping, len, PCI_DMA_FROMDEVICE); | |
464 | skb_reserve(copy_skb, RX_OFFSET); | |
d626f62b ACM |
465 | skb_copy_from_linear_data(skb, skb_put(copy_skb, len), |
466 | len); | |
1da177e4 LT |
467 | pci_dma_sync_single_for_device(de->pdev, mapping, len, PCI_DMA_FROMDEVICE); |
468 | ||
469 | /* We'll reuse the original ring buffer. */ | |
470 | skb = copy_skb; | |
471 | } | |
472 | ||
473 | skb->protocol = eth_type_trans (skb, de->dev); | |
474 | ||
475 | de->net_stats.rx_packets++; | |
476 | de->net_stats.rx_bytes += skb->len; | |
1da177e4 LT |
477 | rc = netif_rx (skb); |
478 | if (rc == NET_RX_DROP) | |
479 | drop = 1; | |
480 | ||
481 | rx_next: | |
1da177e4 LT |
482 | if (rx_tail == (DE_RX_RING_SIZE - 1)) |
483 | de->rx_ring[rx_tail].opts2 = | |
484 | cpu_to_le32(RingEnd | de->rx_buf_sz); | |
485 | else | |
486 | de->rx_ring[rx_tail].opts2 = cpu_to_le32(de->rx_buf_sz); | |
487 | de->rx_ring[rx_tail].addr1 = cpu_to_le32(mapping); | |
b991d2bc RS |
488 | wmb(); |
489 | de->rx_ring[rx_tail].opts1 = cpu_to_le32(DescOwn); | |
1da177e4 LT |
490 | rx_tail = NEXT_RX(rx_tail); |
491 | } | |
492 | ||
493 | if (!rx_work) | |
f639dc7d | 494 | dev_warn(&de->dev->dev, "rx work limit reached\n"); |
1da177e4 LT |
495 | |
496 | de->rx_tail = rx_tail; | |
497 | } | |
498 | ||
7d12e780 | 499 | static irqreturn_t de_interrupt (int irq, void *dev_instance) |
1da177e4 LT |
500 | { |
501 | struct net_device *dev = dev_instance; | |
8f15ea42 | 502 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
503 | u32 status; |
504 | ||
505 | status = dr32(MacStatus); | |
506 | if ((!(status & (IntrOK|IntrErr))) || (status == 0xFFFF)) | |
507 | return IRQ_NONE; | |
508 | ||
509 | if (netif_msg_intr(de)) | |
510 | printk(KERN_DEBUG "%s: intr, status %08x mode %08x desc %u/%u/%u\n", | |
f639dc7d JP |
511 | dev->name, status, dr32(MacMode), |
512 | de->rx_tail, de->tx_head, de->tx_tail); | |
1da177e4 LT |
513 | |
514 | dw32(MacStatus, status); | |
515 | ||
516 | if (status & (RxIntr | RxEmpty)) { | |
517 | de_rx(de); | |
518 | if (status & RxEmpty) | |
519 | dw32(RxPoll, NormalRxPoll); | |
520 | } | |
521 | ||
522 | spin_lock(&de->lock); | |
523 | ||
524 | if (status & (TxIntr | TxEmpty)) | |
525 | de_tx(de); | |
526 | ||
527 | if (status & (LinkPass | LinkFail)) | |
528 | de_media_interrupt(de, status); | |
529 | ||
530 | spin_unlock(&de->lock); | |
531 | ||
532 | if (status & PciErr) { | |
533 | u16 pci_status; | |
534 | ||
535 | pci_read_config_word(de->pdev, PCI_STATUS, &pci_status); | |
536 | pci_write_config_word(de->pdev, PCI_STATUS, pci_status); | |
f639dc7d JP |
537 | dev_err(&de->dev->dev, |
538 | "PCI bus error, status=%08x, PCI status=%04x\n", | |
539 | status, pci_status); | |
1da177e4 LT |
540 | } |
541 | ||
542 | return IRQ_HANDLED; | |
543 | } | |
544 | ||
545 | static void de_tx (struct de_private *de) | |
546 | { | |
547 | unsigned tx_head = de->tx_head; | |
548 | unsigned tx_tail = de->tx_tail; | |
549 | ||
550 | while (tx_tail != tx_head) { | |
551 | struct sk_buff *skb; | |
552 | u32 status; | |
553 | ||
554 | rmb(); | |
555 | status = le32_to_cpu(de->tx_ring[tx_tail].opts1); | |
556 | if (status & DescOwn) | |
557 | break; | |
558 | ||
559 | skb = de->tx_skb[tx_tail].skb; | |
7e0b58f3 | 560 | BUG_ON(!skb); |
1da177e4 LT |
561 | if (unlikely(skb == DE_DUMMY_SKB)) |
562 | goto next; | |
563 | ||
564 | if (unlikely(skb == DE_SETUP_SKB)) { | |
565 | pci_unmap_single(de->pdev, de->tx_skb[tx_tail].mapping, | |
566 | sizeof(de->setup_frame), PCI_DMA_TODEVICE); | |
567 | goto next; | |
568 | } | |
569 | ||
570 | pci_unmap_single(de->pdev, de->tx_skb[tx_tail].mapping, | |
571 | skb->len, PCI_DMA_TODEVICE); | |
572 | ||
573 | if (status & LastFrag) { | |
574 | if (status & TxError) { | |
575 | if (netif_msg_tx_err(de)) | |
576 | printk(KERN_DEBUG "%s: tx err, status 0x%x\n", | |
577 | de->dev->name, status); | |
578 | de->net_stats.tx_errors++; | |
579 | if (status & TxOWC) | |
580 | de->net_stats.tx_window_errors++; | |
581 | if (status & TxMaxCol) | |
582 | de->net_stats.tx_aborted_errors++; | |
583 | if (status & TxLinkFail) | |
584 | de->net_stats.tx_carrier_errors++; | |
585 | if (status & TxFIFOUnder) | |
586 | de->net_stats.tx_fifo_errors++; | |
587 | } else { | |
588 | de->net_stats.tx_packets++; | |
589 | de->net_stats.tx_bytes += skb->len; | |
590 | if (netif_msg_tx_done(de)) | |
f639dc7d JP |
591 | printk(KERN_DEBUG "%s: tx done, slot %d\n", |
592 | de->dev->name, tx_tail); | |
1da177e4 LT |
593 | } |
594 | dev_kfree_skb_irq(skb); | |
595 | } | |
596 | ||
597 | next: | |
598 | de->tx_skb[tx_tail].skb = NULL; | |
599 | ||
600 | tx_tail = NEXT_TX(tx_tail); | |
601 | } | |
602 | ||
603 | de->tx_tail = tx_tail; | |
604 | ||
605 | if (netif_queue_stopped(de->dev) && (TX_BUFFS_AVAIL(de) > (DE_TX_RING_SIZE / 4))) | |
606 | netif_wake_queue(de->dev); | |
607 | } | |
608 | ||
ad096463 SH |
609 | static netdev_tx_t de_start_xmit (struct sk_buff *skb, |
610 | struct net_device *dev) | |
1da177e4 | 611 | { |
8f15ea42 | 612 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
613 | unsigned int entry, tx_free; |
614 | u32 mapping, len, flags = FirstFrag | LastFrag; | |
615 | struct de_desc *txd; | |
616 | ||
617 | spin_lock_irq(&de->lock); | |
618 | ||
619 | tx_free = TX_BUFFS_AVAIL(de); | |
620 | if (tx_free == 0) { | |
621 | netif_stop_queue(dev); | |
622 | spin_unlock_irq(&de->lock); | |
5b548140 | 623 | return NETDEV_TX_BUSY; |
1da177e4 LT |
624 | } |
625 | tx_free--; | |
626 | ||
627 | entry = de->tx_head; | |
628 | ||
629 | txd = &de->tx_ring[entry]; | |
630 | ||
631 | len = skb->len; | |
632 | mapping = pci_map_single(de->pdev, skb->data, len, PCI_DMA_TODEVICE); | |
633 | if (entry == (DE_TX_RING_SIZE - 1)) | |
634 | flags |= RingEnd; | |
635 | if (!tx_free || (tx_free == (DE_TX_RING_SIZE / 2))) | |
636 | flags |= TxSwInt; | |
637 | flags |= len; | |
638 | txd->opts2 = cpu_to_le32(flags); | |
639 | txd->addr1 = cpu_to_le32(mapping); | |
640 | ||
641 | de->tx_skb[entry].skb = skb; | |
642 | de->tx_skb[entry].mapping = mapping; | |
643 | wmb(); | |
644 | ||
645 | txd->opts1 = cpu_to_le32(DescOwn); | |
646 | wmb(); | |
647 | ||
648 | de->tx_head = NEXT_TX(entry); | |
649 | if (netif_msg_tx_queued(de)) | |
650 | printk(KERN_DEBUG "%s: tx queued, slot %d, skblen %d\n", | |
651 | dev->name, entry, skb->len); | |
652 | ||
653 | if (tx_free == 0) | |
654 | netif_stop_queue(dev); | |
655 | ||
656 | spin_unlock_irq(&de->lock); | |
657 | ||
658 | /* Trigger an immediate transmit demand. */ | |
659 | dw32(TxPoll, NormalTxPoll); | |
1da177e4 | 660 | |
6ed10654 | 661 | return NETDEV_TX_OK; |
1da177e4 LT |
662 | } |
663 | ||
664 | /* Set or clear the multicast filter for this adaptor. | |
665 | Note that we only use exclusion around actually queueing the | |
666 | new frame, not around filling de->setup_frame. This is non-deterministic | |
667 | when re-entered but still correct. */ | |
668 | ||
669 | #undef set_bit_le | |
670 | #define set_bit_le(i,p) do { ((char *)(p))[(i)/8] |= (1<<((i)%8)); } while(0) | |
671 | ||
672 | static void build_setup_frame_hash(u16 *setup_frm, struct net_device *dev) | |
673 | { | |
8f15ea42 | 674 | struct de_private *de = netdev_priv(dev); |
1da177e4 | 675 | u16 hash_table[32]; |
22bedad3 | 676 | struct netdev_hw_addr *ha; |
1da177e4 LT |
677 | int i; |
678 | u16 *eaddrs; | |
679 | ||
680 | memset(hash_table, 0, sizeof(hash_table)); | |
681 | set_bit_le(255, hash_table); /* Broadcast entry */ | |
682 | /* This should work on big-endian machines as well. */ | |
22bedad3 JP |
683 | netdev_for_each_mc_addr(ha, dev) { |
684 | int index = ether_crc_le(ETH_ALEN, ha->addr) & 0x1ff; | |
1da177e4 LT |
685 | |
686 | set_bit_le(index, hash_table); | |
4302b67e | 687 | } |
1da177e4 | 688 | |
4302b67e JP |
689 | for (i = 0; i < 32; i++) { |
690 | *setup_frm++ = hash_table[i]; | |
691 | *setup_frm++ = hash_table[i]; | |
1da177e4 | 692 | } |
4302b67e | 693 | setup_frm = &de->setup_frame[13*6]; |
1da177e4 LT |
694 | |
695 | /* Fill the final entry with our physical address. */ | |
696 | eaddrs = (u16 *)dev->dev_addr; | |
697 | *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0]; | |
698 | *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1]; | |
699 | *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2]; | |
700 | } | |
701 | ||
702 | static void build_setup_frame_perfect(u16 *setup_frm, struct net_device *dev) | |
703 | { | |
8f15ea42 | 704 | struct de_private *de = netdev_priv(dev); |
22bedad3 | 705 | struct netdev_hw_addr *ha; |
1da177e4 LT |
706 | u16 *eaddrs; |
707 | ||
708 | /* We have <= 14 addresses so we can use the wonderful | |
709 | 16 address perfect filtering of the Tulip. */ | |
22bedad3 JP |
710 | netdev_for_each_mc_addr(ha, dev) { |
711 | eaddrs = (u16 *) ha->addr; | |
1da177e4 LT |
712 | *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; |
713 | *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; | |
714 | *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; | |
715 | } | |
716 | /* Fill the unused entries with the broadcast address. */ | |
4302b67e | 717 | memset(setup_frm, 0xff, (15 - netdev_mc_count(dev)) * 12); |
1da177e4 LT |
718 | setup_frm = &de->setup_frame[15*6]; |
719 | ||
720 | /* Fill the final entry with our physical address. */ | |
721 | eaddrs = (u16 *)dev->dev_addr; | |
722 | *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0]; | |
723 | *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1]; | |
724 | *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2]; | |
725 | } | |
726 | ||
727 | ||
728 | static void __de_set_rx_mode (struct net_device *dev) | |
729 | { | |
8f15ea42 | 730 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
731 | u32 macmode; |
732 | unsigned int entry; | |
733 | u32 mapping; | |
734 | struct de_desc *txd; | |
735 | struct de_desc *dummy_txd = NULL; | |
736 | ||
737 | macmode = dr32(MacMode) & ~(AcceptAllMulticast | AcceptAllPhys); | |
738 | ||
739 | if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ | |
740 | macmode |= AcceptAllMulticast | AcceptAllPhys; | |
741 | goto out; | |
742 | } | |
743 | ||
4cd24eaf | 744 | if ((netdev_mc_count(dev) > 1000) || (dev->flags & IFF_ALLMULTI)) { |
1da177e4 LT |
745 | /* Too many to filter well -- accept all multicasts. */ |
746 | macmode |= AcceptAllMulticast; | |
747 | goto out; | |
748 | } | |
749 | ||
750 | /* Note that only the low-address shortword of setup_frame is valid! | |
751 | The values are doubled for big-endian architectures. */ | |
4cd24eaf | 752 | if (netdev_mc_count(dev) > 14) /* Must use a multicast hash table. */ |
1da177e4 LT |
753 | build_setup_frame_hash (de->setup_frame, dev); |
754 | else | |
755 | build_setup_frame_perfect (de->setup_frame, dev); | |
756 | ||
757 | /* | |
758 | * Now add this frame to the Tx list. | |
759 | */ | |
760 | ||
761 | entry = de->tx_head; | |
762 | ||
763 | /* Avoid a chip errata by prefixing a dummy entry. */ | |
764 | if (entry != 0) { | |
765 | de->tx_skb[entry].skb = DE_DUMMY_SKB; | |
766 | ||
767 | dummy_txd = &de->tx_ring[entry]; | |
768 | dummy_txd->opts2 = (entry == (DE_TX_RING_SIZE - 1)) ? | |
769 | cpu_to_le32(RingEnd) : 0; | |
770 | dummy_txd->addr1 = 0; | |
771 | ||
772 | /* Must set DescOwned later to avoid race with chip */ | |
773 | ||
774 | entry = NEXT_TX(entry); | |
775 | } | |
776 | ||
777 | de->tx_skb[entry].skb = DE_SETUP_SKB; | |
778 | de->tx_skb[entry].mapping = mapping = | |
779 | pci_map_single (de->pdev, de->setup_frame, | |
780 | sizeof (de->setup_frame), PCI_DMA_TODEVICE); | |
781 | ||
782 | /* Put the setup frame on the Tx list. */ | |
783 | txd = &de->tx_ring[entry]; | |
784 | if (entry == (DE_TX_RING_SIZE - 1)) | |
785 | txd->opts2 = cpu_to_le32(SetupFrame | RingEnd | sizeof (de->setup_frame)); | |
786 | else | |
787 | txd->opts2 = cpu_to_le32(SetupFrame | sizeof (de->setup_frame)); | |
788 | txd->addr1 = cpu_to_le32(mapping); | |
789 | wmb(); | |
790 | ||
791 | txd->opts1 = cpu_to_le32(DescOwn); | |
792 | wmb(); | |
793 | ||
794 | if (dummy_txd) { | |
795 | dummy_txd->opts1 = cpu_to_le32(DescOwn); | |
796 | wmb(); | |
797 | } | |
798 | ||
799 | de->tx_head = NEXT_TX(entry); | |
800 | ||
1da177e4 LT |
801 | if (TX_BUFFS_AVAIL(de) == 0) |
802 | netif_stop_queue(dev); | |
803 | ||
804 | /* Trigger an immediate transmit demand. */ | |
805 | dw32(TxPoll, NormalTxPoll); | |
806 | ||
807 | out: | |
808 | if (macmode != dr32(MacMode)) | |
809 | dw32(MacMode, macmode); | |
810 | } | |
811 | ||
812 | static void de_set_rx_mode (struct net_device *dev) | |
813 | { | |
814 | unsigned long flags; | |
8f15ea42 | 815 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
816 | |
817 | spin_lock_irqsave (&de->lock, flags); | |
818 | __de_set_rx_mode(dev); | |
819 | spin_unlock_irqrestore (&de->lock, flags); | |
820 | } | |
821 | ||
822 | static inline void de_rx_missed(struct de_private *de, u32 rx_missed) | |
823 | { | |
824 | if (unlikely(rx_missed & RxMissedOver)) | |
825 | de->net_stats.rx_missed_errors += RxMissedMask; | |
826 | else | |
827 | de->net_stats.rx_missed_errors += (rx_missed & RxMissedMask); | |
828 | } | |
829 | ||
830 | static void __de_get_stats(struct de_private *de) | |
831 | { | |
832 | u32 tmp = dr32(RxMissed); /* self-clearing */ | |
833 | ||
834 | de_rx_missed(de, tmp); | |
835 | } | |
836 | ||
837 | static struct net_device_stats *de_get_stats(struct net_device *dev) | |
838 | { | |
8f15ea42 | 839 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
840 | |
841 | /* The chip only need report frame silently dropped. */ | |
842 | spin_lock_irq(&de->lock); | |
843 | if (netif_running(dev) && netif_device_present(dev)) | |
844 | __de_get_stats(de); | |
845 | spin_unlock_irq(&de->lock); | |
846 | ||
847 | return &de->net_stats; | |
848 | } | |
849 | ||
850 | static inline int de_is_running (struct de_private *de) | |
851 | { | |
852 | return (dr32(MacStatus) & (RxState | TxState)) ? 1 : 0; | |
853 | } | |
854 | ||
855 | static void de_stop_rxtx (struct de_private *de) | |
856 | { | |
857 | u32 macmode; | |
69cac988 | 858 | unsigned int i = 1300/100; |
1da177e4 LT |
859 | |
860 | macmode = dr32(MacMode); | |
861 | if (macmode & RxTx) { | |
862 | dw32(MacMode, macmode & ~RxTx); | |
863 | dr32(MacMode); | |
864 | } | |
865 | ||
69cac988 GG |
866 | /* wait until in-flight frame completes. |
867 | * Max time @ 10BT: 1500*8b/10Mbps == 1200us (+ 100us margin) | |
868 | * Typically expect this loop to end in < 50 us on 100BT. | |
869 | */ | |
870 | while (--i) { | |
1da177e4 LT |
871 | if (!de_is_running(de)) |
872 | return; | |
69cac988 | 873 | udelay(100); |
1da177e4 | 874 | } |
f3b197ac | 875 | |
f639dc7d | 876 | dev_warn(&de->dev->dev, "timeout expired stopping DMA\n"); |
1da177e4 LT |
877 | } |
878 | ||
879 | static inline void de_start_rxtx (struct de_private *de) | |
880 | { | |
881 | u32 macmode; | |
882 | ||
883 | macmode = dr32(MacMode); | |
884 | if ((macmode & RxTx) != RxTx) { | |
885 | dw32(MacMode, macmode | RxTx); | |
886 | dr32(MacMode); | |
887 | } | |
888 | } | |
889 | ||
890 | static void de_stop_hw (struct de_private *de) | |
891 | { | |
892 | ||
893 | udelay(5); | |
894 | dw32(IntrMask, 0); | |
895 | ||
896 | de_stop_rxtx(de); | |
897 | ||
898 | dw32(MacStatus, dr32(MacStatus)); | |
899 | ||
900 | udelay(10); | |
901 | ||
902 | de->rx_tail = 0; | |
903 | de->tx_head = de->tx_tail = 0; | |
904 | } | |
905 | ||
906 | static void de_link_up(struct de_private *de) | |
907 | { | |
908 | if (!netif_carrier_ok(de->dev)) { | |
909 | netif_carrier_on(de->dev); | |
910 | if (netif_msg_link(de)) | |
f639dc7d JP |
911 | dev_info(&de->dev->dev, "link up, media %s\n", |
912 | media_name[de->media_type]); | |
1da177e4 LT |
913 | } |
914 | } | |
915 | ||
916 | static void de_link_down(struct de_private *de) | |
917 | { | |
918 | if (netif_carrier_ok(de->dev)) { | |
919 | netif_carrier_off(de->dev); | |
920 | if (netif_msg_link(de)) | |
f639dc7d | 921 | dev_info(&de->dev->dev, "link down\n"); |
1da177e4 LT |
922 | } |
923 | } | |
924 | ||
925 | static void de_set_media (struct de_private *de) | |
926 | { | |
927 | unsigned media = de->media_type; | |
928 | u32 macmode = dr32(MacMode); | |
929 | ||
f25f0f8d | 930 | if (de_is_running(de)) |
f639dc7d JP |
931 | dev_warn(&de->dev->dev, |
932 | "chip is running while changing media!\n"); | |
1da177e4 LT |
933 | |
934 | if (de->de21040) | |
935 | dw32(CSR11, FULL_DUPLEX_MAGIC); | |
936 | dw32(CSR13, 0); /* Reset phy */ | |
937 | dw32(CSR14, de->media[media].csr14); | |
938 | dw32(CSR15, de->media[media].csr15); | |
939 | dw32(CSR13, de->media[media].csr13); | |
940 | ||
941 | /* must delay 10ms before writing to other registers, | |
942 | * especially CSR6 | |
943 | */ | |
944 | mdelay(10); | |
945 | ||
946 | if (media == DE_MEDIA_TP_FD) | |
947 | macmode |= FullDuplex; | |
948 | else | |
949 | macmode &= ~FullDuplex; | |
f3b197ac | 950 | |
1da177e4 | 951 | if (netif_msg_link(de)) { |
f639dc7d JP |
952 | dev_info(&de->dev->dev, "set link %s\n", media_name[media]); |
953 | dev_info(&de->dev->dev, "mode 0x%x, sia 0x%x,0x%x,0x%x,0x%x\n", | |
954 | dr32(MacMode), dr32(SIAStatus), | |
955 | dr32(CSR13), dr32(CSR14), dr32(CSR15)); | |
956 | ||
957 | dev_info(&de->dev->dev, | |
958 | "set mode 0x%x, set sia 0x%x,0x%x,0x%x\n", | |
959 | macmode, de->media[media].csr13, | |
960 | de->media[media].csr14, de->media[media].csr15); | |
1da177e4 LT |
961 | } |
962 | if (macmode != dr32(MacMode)) | |
963 | dw32(MacMode, macmode); | |
964 | } | |
965 | ||
966 | static void de_next_media (struct de_private *de, u32 *media, | |
967 | unsigned int n_media) | |
968 | { | |
969 | unsigned int i; | |
970 | ||
971 | for (i = 0; i < n_media; i++) { | |
972 | if (de_ok_to_advertise(de, media[i])) { | |
973 | de->media_type = media[i]; | |
974 | return; | |
975 | } | |
976 | } | |
977 | } | |
978 | ||
979 | static void de21040_media_timer (unsigned long data) | |
980 | { | |
981 | struct de_private *de = (struct de_private *) data; | |
982 | struct net_device *dev = de->dev; | |
983 | u32 status = dr32(SIAStatus); | |
984 | unsigned int carrier; | |
985 | unsigned long flags; | |
f3b197ac | 986 | |
1da177e4 | 987 | carrier = (status & NetCxnErr) ? 0 : 1; |
f3b197ac | 988 | |
1da177e4 LT |
989 | if (carrier) { |
990 | if (de->media_type != DE_MEDIA_AUI && (status & LinkFailStatus)) | |
991 | goto no_link_yet; | |
992 | ||
993 | de->media_timer.expires = jiffies + DE_TIMER_LINK; | |
994 | add_timer(&de->media_timer); | |
995 | if (!netif_carrier_ok(dev)) | |
996 | de_link_up(de); | |
997 | else | |
998 | if (netif_msg_timer(de)) | |
f639dc7d JP |
999 | dev_info(&dev->dev, "%s link ok, status %x\n", |
1000 | media_name[de->media_type], status); | |
1da177e4 LT |
1001 | return; |
1002 | } | |
1003 | ||
f3b197ac | 1004 | de_link_down(de); |
1da177e4 LT |
1005 | |
1006 | if (de->media_lock) | |
1007 | return; | |
1008 | ||
1009 | if (de->media_type == DE_MEDIA_AUI) { | |
1010 | u32 next_state = DE_MEDIA_TP; | |
1011 | de_next_media(de, &next_state, 1); | |
1012 | } else { | |
1013 | u32 next_state = DE_MEDIA_AUI; | |
1014 | de_next_media(de, &next_state, 1); | |
1015 | } | |
1016 | ||
1017 | spin_lock_irqsave(&de->lock, flags); | |
1018 | de_stop_rxtx(de); | |
1019 | spin_unlock_irqrestore(&de->lock, flags); | |
1020 | de_set_media(de); | |
1021 | de_start_rxtx(de); | |
1022 | ||
1023 | no_link_yet: | |
1024 | de->media_timer.expires = jiffies + DE_TIMER_NO_LINK; | |
1025 | add_timer(&de->media_timer); | |
1026 | ||
1027 | if (netif_msg_timer(de)) | |
f639dc7d JP |
1028 | dev_info(&dev->dev, "no link, trying media %s, status %x\n", |
1029 | media_name[de->media_type], status); | |
1da177e4 LT |
1030 | } |
1031 | ||
1032 | static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media) | |
1033 | { | |
1034 | switch (new_media) { | |
1035 | case DE_MEDIA_TP_AUTO: | |
1036 | if (!(de->media_advertise & ADVERTISED_Autoneg)) | |
1037 | return 0; | |
1038 | if (!(de->media_advertise & (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full))) | |
1039 | return 0; | |
1040 | break; | |
1041 | case DE_MEDIA_BNC: | |
1042 | if (!(de->media_advertise & ADVERTISED_BNC)) | |
1043 | return 0; | |
1044 | break; | |
1045 | case DE_MEDIA_AUI: | |
1046 | if (!(de->media_advertise & ADVERTISED_AUI)) | |
1047 | return 0; | |
1048 | break; | |
1049 | case DE_MEDIA_TP: | |
1050 | if (!(de->media_advertise & ADVERTISED_10baseT_Half)) | |
1051 | return 0; | |
1052 | break; | |
1053 | case DE_MEDIA_TP_FD: | |
1054 | if (!(de->media_advertise & ADVERTISED_10baseT_Full)) | |
1055 | return 0; | |
1056 | break; | |
1057 | } | |
f3b197ac | 1058 | |
1da177e4 LT |
1059 | return 1; |
1060 | } | |
1061 | ||
1062 | static void de21041_media_timer (unsigned long data) | |
1063 | { | |
1064 | struct de_private *de = (struct de_private *) data; | |
1065 | struct net_device *dev = de->dev; | |
1066 | u32 status = dr32(SIAStatus); | |
1067 | unsigned int carrier; | |
1068 | unsigned long flags; | |
f3b197ac | 1069 | |
ca9a7835 OZ |
1070 | /* clear port active bits */ |
1071 | dw32(SIAStatus, NonselPortActive | SelPortActive); | |
1072 | ||
1da177e4 | 1073 | carrier = (status & NetCxnErr) ? 0 : 1; |
f3b197ac | 1074 | |
1da177e4 LT |
1075 | if (carrier) { |
1076 | if ((de->media_type == DE_MEDIA_TP_AUTO || | |
1077 | de->media_type == DE_MEDIA_TP || | |
1078 | de->media_type == DE_MEDIA_TP_FD) && | |
1079 | (status & LinkFailStatus)) | |
1080 | goto no_link_yet; | |
1081 | ||
1082 | de->media_timer.expires = jiffies + DE_TIMER_LINK; | |
1083 | add_timer(&de->media_timer); | |
1084 | if (!netif_carrier_ok(dev)) | |
1085 | de_link_up(de); | |
1086 | else | |
1087 | if (netif_msg_timer(de)) | |
f639dc7d JP |
1088 | dev_info(&dev->dev, |
1089 | "%s link ok, mode %x status %x\n", | |
1090 | media_name[de->media_type], | |
1091 | dr32(MacMode), status); | |
1da177e4 LT |
1092 | return; |
1093 | } | |
1094 | ||
f3b197ac | 1095 | de_link_down(de); |
1da177e4 LT |
1096 | |
1097 | /* if media type locked, don't switch media */ | |
1098 | if (de->media_lock) | |
1099 | goto set_media; | |
1100 | ||
1101 | /* if activity detected, use that as hint for new media type */ | |
1102 | if (status & NonselPortActive) { | |
1103 | unsigned int have_media = 1; | |
1104 | ||
1105 | /* if AUI/BNC selected, then activity is on TP port */ | |
1106 | if (de->media_type == DE_MEDIA_AUI || | |
1107 | de->media_type == DE_MEDIA_BNC) { | |
1108 | if (de_ok_to_advertise(de, DE_MEDIA_TP_AUTO)) | |
1109 | de->media_type = DE_MEDIA_TP_AUTO; | |
1110 | else | |
1111 | have_media = 0; | |
1112 | } | |
1113 | ||
1114 | /* TP selected. If there is only TP and BNC, then it's BNC */ | |
1115 | else if (((de->media_supported & DE_AUI_BNC) == SUPPORTED_BNC) && | |
1116 | de_ok_to_advertise(de, DE_MEDIA_BNC)) | |
1117 | de->media_type = DE_MEDIA_BNC; | |
1118 | ||
1119 | /* TP selected. If there is only TP and AUI, then it's AUI */ | |
1120 | else if (((de->media_supported & DE_AUI_BNC) == SUPPORTED_AUI) && | |
1121 | de_ok_to_advertise(de, DE_MEDIA_AUI)) | |
1122 | de->media_type = DE_MEDIA_AUI; | |
1123 | ||
1124 | /* otherwise, ignore the hint */ | |
1125 | else | |
1126 | have_media = 0; | |
1127 | ||
1128 | if (have_media) | |
1129 | goto set_media; | |
1130 | } | |
1131 | ||
1132 | /* | |
1133 | * Absent or ambiguous activity hint, move to next advertised | |
1134 | * media state. If de->media_type is left unchanged, this | |
1135 | * simply resets the PHY and reloads the current media settings. | |
1136 | */ | |
1137 | if (de->media_type == DE_MEDIA_AUI) { | |
1138 | u32 next_states[] = { DE_MEDIA_BNC, DE_MEDIA_TP_AUTO }; | |
1139 | de_next_media(de, next_states, ARRAY_SIZE(next_states)); | |
1140 | } else if (de->media_type == DE_MEDIA_BNC) { | |
1141 | u32 next_states[] = { DE_MEDIA_TP_AUTO, DE_MEDIA_AUI }; | |
1142 | de_next_media(de, next_states, ARRAY_SIZE(next_states)); | |
1143 | } else { | |
1144 | u32 next_states[] = { DE_MEDIA_AUI, DE_MEDIA_BNC, DE_MEDIA_TP_AUTO }; | |
1145 | de_next_media(de, next_states, ARRAY_SIZE(next_states)); | |
1146 | } | |
f3b197ac | 1147 | |
1da177e4 LT |
1148 | set_media: |
1149 | spin_lock_irqsave(&de->lock, flags); | |
1150 | de_stop_rxtx(de); | |
1151 | spin_unlock_irqrestore(&de->lock, flags); | |
1152 | de_set_media(de); | |
1153 | de_start_rxtx(de); | |
1154 | ||
1155 | no_link_yet: | |
1156 | de->media_timer.expires = jiffies + DE_TIMER_NO_LINK; | |
1157 | add_timer(&de->media_timer); | |
1158 | ||
1159 | if (netif_msg_timer(de)) | |
f639dc7d JP |
1160 | dev_info(&dev->dev, "no link, trying media %s, status %x\n", |
1161 | media_name[de->media_type], status); | |
1da177e4 LT |
1162 | } |
1163 | ||
1164 | static void de_media_interrupt (struct de_private *de, u32 status) | |
1165 | { | |
1166 | if (status & LinkPass) { | |
ca9a7835 OZ |
1167 | /* Ignore if current media is AUI or BNC and we can't use TP */ |
1168 | if ((de->media_type == DE_MEDIA_AUI || | |
1169 | de->media_type == DE_MEDIA_BNC) && | |
1170 | (de->media_lock || | |
1171 | !de_ok_to_advertise(de, DE_MEDIA_TP_AUTO))) | |
1172 | return; | |
1173 | /* If current media is not TP, change it to TP */ | |
1174 | if ((de->media_type == DE_MEDIA_AUI || | |
1175 | de->media_type == DE_MEDIA_BNC)) { | |
1176 | de->media_type = DE_MEDIA_TP_AUTO; | |
1177 | de_stop_rxtx(de); | |
1178 | de_set_media(de); | |
1179 | de_start_rxtx(de); | |
1180 | } | |
1da177e4 LT |
1181 | de_link_up(de); |
1182 | mod_timer(&de->media_timer, jiffies + DE_TIMER_LINK); | |
1183 | return; | |
1184 | } | |
f3b197ac | 1185 | |
7e0b58f3 | 1186 | BUG_ON(!(status & LinkFail)); |
ca9a7835 OZ |
1187 | /* Mark the link as down only if current media is TP */ |
1188 | if (netif_carrier_ok(de->dev) && de->media_type != DE_MEDIA_AUI && | |
1189 | de->media_type != DE_MEDIA_BNC) { | |
1da177e4 LT |
1190 | de_link_down(de); |
1191 | mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK); | |
1192 | } | |
1193 | } | |
1194 | ||
1195 | static int de_reset_mac (struct de_private *de) | |
1196 | { | |
1197 | u32 status, tmp; | |
1198 | ||
1199 | /* | |
1200 | * Reset MAC. de4x5.c and tulip.c examined for "advice" | |
1201 | * in this area. | |
1202 | */ | |
1203 | ||
1204 | if (dr32(BusMode) == 0xffffffff) | |
1205 | return -EBUSY; | |
1206 | ||
1207 | /* Reset the chip, holding bit 0 set at least 50 PCI cycles. */ | |
1208 | dw32 (BusMode, CmdReset); | |
1209 | mdelay (1); | |
1210 | ||
1211 | dw32 (BusMode, de_bus_mode); | |
1212 | mdelay (1); | |
1213 | ||
1214 | for (tmp = 0; tmp < 5; tmp++) { | |
1215 | dr32 (BusMode); | |
1216 | mdelay (1); | |
1217 | } | |
1218 | ||
1219 | mdelay (1); | |
1220 | ||
1221 | status = dr32(MacStatus); | |
1222 | if (status & (RxState | TxState)) | |
1223 | return -EBUSY; | |
1224 | if (status == 0xffffffff) | |
1225 | return -ENODEV; | |
1226 | return 0; | |
1227 | } | |
1228 | ||
1229 | static void de_adapter_wake (struct de_private *de) | |
1230 | { | |
1231 | u32 pmctl; | |
1232 | ||
1233 | if (de->de21040) | |
1234 | return; | |
1235 | ||
1236 | pci_read_config_dword(de->pdev, PCIPM, &pmctl); | |
1237 | if (pmctl & PM_Mask) { | |
1238 | pmctl &= ~PM_Mask; | |
1239 | pci_write_config_dword(de->pdev, PCIPM, pmctl); | |
1240 | ||
1241 | /* de4x5.c delays, so we do too */ | |
1242 | msleep(10); | |
1243 | } | |
1244 | } | |
1245 | ||
1246 | static void de_adapter_sleep (struct de_private *de) | |
1247 | { | |
1248 | u32 pmctl; | |
1249 | ||
1250 | if (de->de21040) | |
1251 | return; | |
1252 | ||
b0255a02 | 1253 | dw32(CSR13, 0); /* Reset phy */ |
1da177e4 LT |
1254 | pci_read_config_dword(de->pdev, PCIPM, &pmctl); |
1255 | pmctl |= PM_Sleep; | |
1256 | pci_write_config_dword(de->pdev, PCIPM, pmctl); | |
1257 | } | |
1258 | ||
1259 | static int de_init_hw (struct de_private *de) | |
1260 | { | |
1261 | struct net_device *dev = de->dev; | |
1262 | u32 macmode; | |
1263 | int rc; | |
1264 | ||
1265 | de_adapter_wake(de); | |
f3b197ac | 1266 | |
1da177e4 LT |
1267 | macmode = dr32(MacMode) & ~MacModeClear; |
1268 | ||
1269 | rc = de_reset_mac(de); | |
1270 | if (rc) | |
1271 | return rc; | |
1272 | ||
1273 | de_set_media(de); /* reset phy */ | |
1274 | ||
1275 | dw32(RxRingAddr, de->ring_dma); | |
1276 | dw32(TxRingAddr, de->ring_dma + (sizeof(struct de_desc) * DE_RX_RING_SIZE)); | |
1277 | ||
1278 | dw32(MacMode, RxTx | macmode); | |
1279 | ||
1280 | dr32(RxMissed); /* self-clearing */ | |
1281 | ||
1282 | dw32(IntrMask, de_intr_mask); | |
1283 | ||
1284 | de_set_rx_mode(dev); | |
1285 | ||
1286 | return 0; | |
1287 | } | |
1288 | ||
1289 | static int de_refill_rx (struct de_private *de) | |
1290 | { | |
1291 | unsigned i; | |
1292 | ||
1293 | for (i = 0; i < DE_RX_RING_SIZE; i++) { | |
1294 | struct sk_buff *skb; | |
1295 | ||
1296 | skb = dev_alloc_skb(de->rx_buf_sz); | |
1297 | if (!skb) | |
1298 | goto err_out; | |
1299 | ||
1300 | skb->dev = de->dev; | |
1301 | ||
1302 | de->rx_skb[i].mapping = pci_map_single(de->pdev, | |
689be439 | 1303 | skb->data, de->rx_buf_sz, PCI_DMA_FROMDEVICE); |
1da177e4 LT |
1304 | de->rx_skb[i].skb = skb; |
1305 | ||
1306 | de->rx_ring[i].opts1 = cpu_to_le32(DescOwn); | |
1307 | if (i == (DE_RX_RING_SIZE - 1)) | |
1308 | de->rx_ring[i].opts2 = | |
1309 | cpu_to_le32(RingEnd | de->rx_buf_sz); | |
1310 | else | |
1311 | de->rx_ring[i].opts2 = cpu_to_le32(de->rx_buf_sz); | |
1312 | de->rx_ring[i].addr1 = cpu_to_le32(de->rx_skb[i].mapping); | |
1313 | de->rx_ring[i].addr2 = 0; | |
1314 | } | |
1315 | ||
1316 | return 0; | |
1317 | ||
1318 | err_out: | |
1319 | de_clean_rings(de); | |
1320 | return -ENOMEM; | |
1321 | } | |
1322 | ||
1323 | static int de_init_rings (struct de_private *de) | |
1324 | { | |
1325 | memset(de->tx_ring, 0, sizeof(struct de_desc) * DE_TX_RING_SIZE); | |
1326 | de->tx_ring[DE_TX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd); | |
1327 | ||
1328 | de->rx_tail = 0; | |
1329 | de->tx_head = de->tx_tail = 0; | |
1330 | ||
1331 | return de_refill_rx (de); | |
1332 | } | |
1333 | ||
1334 | static int de_alloc_rings (struct de_private *de) | |
1335 | { | |
1336 | de->rx_ring = pci_alloc_consistent(de->pdev, DE_RING_BYTES, &de->ring_dma); | |
1337 | if (!de->rx_ring) | |
1338 | return -ENOMEM; | |
1339 | de->tx_ring = &de->rx_ring[DE_RX_RING_SIZE]; | |
1340 | return de_init_rings(de); | |
1341 | } | |
1342 | ||
1343 | static void de_clean_rings (struct de_private *de) | |
1344 | { | |
1345 | unsigned i; | |
1346 | ||
1347 | memset(de->rx_ring, 0, sizeof(struct de_desc) * DE_RX_RING_SIZE); | |
1348 | de->rx_ring[DE_RX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd); | |
1349 | wmb(); | |
1350 | memset(de->tx_ring, 0, sizeof(struct de_desc) * DE_TX_RING_SIZE); | |
1351 | de->tx_ring[DE_TX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd); | |
1352 | wmb(); | |
1353 | ||
1354 | for (i = 0; i < DE_RX_RING_SIZE; i++) { | |
1355 | if (de->rx_skb[i].skb) { | |
1356 | pci_unmap_single(de->pdev, de->rx_skb[i].mapping, | |
1357 | de->rx_buf_sz, PCI_DMA_FROMDEVICE); | |
1358 | dev_kfree_skb(de->rx_skb[i].skb); | |
1359 | } | |
1360 | } | |
1361 | ||
1362 | for (i = 0; i < DE_TX_RING_SIZE; i++) { | |
1363 | struct sk_buff *skb = de->tx_skb[i].skb; | |
1364 | if ((skb) && (skb != DE_DUMMY_SKB)) { | |
1365 | if (skb != DE_SETUP_SKB) { | |
1da177e4 LT |
1366 | de->net_stats.tx_dropped++; |
1367 | pci_unmap_single(de->pdev, | |
1368 | de->tx_skb[i].mapping, | |
1369 | skb->len, PCI_DMA_TODEVICE); | |
5185c7c2 | 1370 | dev_kfree_skb(skb); |
1da177e4 LT |
1371 | } else { |
1372 | pci_unmap_single(de->pdev, | |
1373 | de->tx_skb[i].mapping, | |
1374 | sizeof(de->setup_frame), | |
1375 | PCI_DMA_TODEVICE); | |
1376 | } | |
1377 | } | |
1378 | } | |
1379 | ||
1380 | memset(&de->rx_skb, 0, sizeof(struct ring_info) * DE_RX_RING_SIZE); | |
1381 | memset(&de->tx_skb, 0, sizeof(struct ring_info) * DE_TX_RING_SIZE); | |
1382 | } | |
1383 | ||
1384 | static void de_free_rings (struct de_private *de) | |
1385 | { | |
1386 | de_clean_rings(de); | |
1387 | pci_free_consistent(de->pdev, DE_RING_BYTES, de->rx_ring, de->ring_dma); | |
1388 | de->rx_ring = NULL; | |
1389 | de->tx_ring = NULL; | |
1390 | } | |
1391 | ||
1392 | static int de_open (struct net_device *dev) | |
1393 | { | |
8f15ea42 | 1394 | struct de_private *de = netdev_priv(dev); |
1da177e4 | 1395 | int rc; |
1da177e4 LT |
1396 | |
1397 | if (netif_msg_ifup(de)) | |
1398 | printk(KERN_DEBUG "%s: enabling interface\n", dev->name); | |
1399 | ||
1400 | de->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32); | |
1401 | ||
1402 | rc = de_alloc_rings(de); | |
1403 | if (rc) { | |
f639dc7d | 1404 | dev_err(&dev->dev, "ring allocation failure, err=%d\n", rc); |
1da177e4 LT |
1405 | return rc; |
1406 | } | |
1407 | ||
3f735b76 | 1408 | dw32(IntrMask, 0); |
1da177e4 | 1409 | |
1fb9df5d | 1410 | rc = request_irq(dev->irq, de_interrupt, IRQF_SHARED, dev->name, dev); |
1da177e4 | 1411 | if (rc) { |
f639dc7d JP |
1412 | dev_err(&dev->dev, "IRQ %d request failure, err=%d\n", |
1413 | dev->irq, rc); | |
3f735b76 FR |
1414 | goto err_out_free; |
1415 | } | |
1416 | ||
1417 | rc = de_init_hw(de); | |
1418 | if (rc) { | |
f639dc7d | 1419 | dev_err(&dev->dev, "h/w init failure, err=%d\n", rc); |
3f735b76 | 1420 | goto err_out_free_irq; |
1da177e4 LT |
1421 | } |
1422 | ||
1423 | netif_start_queue(dev); | |
1424 | mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK); | |
1425 | ||
1426 | return 0; | |
1427 | ||
3f735b76 FR |
1428 | err_out_free_irq: |
1429 | free_irq(dev->irq, dev); | |
1da177e4 LT |
1430 | err_out_free: |
1431 | de_free_rings(de); | |
1432 | return rc; | |
1433 | } | |
1434 | ||
1435 | static int de_close (struct net_device *dev) | |
1436 | { | |
8f15ea42 | 1437 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
1438 | unsigned long flags; |
1439 | ||
1440 | if (netif_msg_ifdown(de)) | |
1441 | printk(KERN_DEBUG "%s: disabling interface\n", dev->name); | |
1442 | ||
1443 | del_timer_sync(&de->media_timer); | |
1444 | ||
1445 | spin_lock_irqsave(&de->lock, flags); | |
1446 | de_stop_hw(de); | |
1447 | netif_stop_queue(dev); | |
1448 | netif_carrier_off(dev); | |
1449 | spin_unlock_irqrestore(&de->lock, flags); | |
f3b197ac | 1450 | |
1da177e4 LT |
1451 | free_irq(dev->irq, dev); |
1452 | ||
1453 | de_free_rings(de); | |
1454 | de_adapter_sleep(de); | |
1da177e4 LT |
1455 | return 0; |
1456 | } | |
1457 | ||
1458 | static void de_tx_timeout (struct net_device *dev) | |
1459 | { | |
8f15ea42 | 1460 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
1461 | |
1462 | printk(KERN_DEBUG "%s: NIC status %08x mode %08x sia %08x desc %u/%u/%u\n", | |
1463 | dev->name, dr32(MacStatus), dr32(MacMode), dr32(SIAStatus), | |
1464 | de->rx_tail, de->tx_head, de->tx_tail); | |
1465 | ||
1466 | del_timer_sync(&de->media_timer); | |
1467 | ||
1468 | disable_irq(dev->irq); | |
1469 | spin_lock_irq(&de->lock); | |
1470 | ||
1471 | de_stop_hw(de); | |
1472 | netif_stop_queue(dev); | |
1473 | netif_carrier_off(dev); | |
1474 | ||
1475 | spin_unlock_irq(&de->lock); | |
1476 | enable_irq(dev->irq); | |
f3b197ac | 1477 | |
1da177e4 LT |
1478 | /* Update the error counts. */ |
1479 | __de_get_stats(de); | |
1480 | ||
1481 | synchronize_irq(dev->irq); | |
1482 | de_clean_rings(de); | |
1483 | ||
39bf4295 FR |
1484 | de_init_rings(de); |
1485 | ||
1da177e4 | 1486 | de_init_hw(de); |
f3b197ac | 1487 | |
1da177e4 LT |
1488 | netif_wake_queue(dev); |
1489 | } | |
1490 | ||
1491 | static void __de_get_regs(struct de_private *de, u8 *buf) | |
1492 | { | |
1493 | int i; | |
1494 | u32 *rbuf = (u32 *)buf; | |
f3b197ac | 1495 | |
1da177e4 LT |
1496 | /* read all CSRs */ |
1497 | for (i = 0; i < DE_NUM_REGS; i++) | |
1498 | rbuf[i] = dr32(i * 8); | |
1499 | ||
1500 | /* handle self-clearing RxMissed counter, CSR8 */ | |
1501 | de_rx_missed(de, rbuf[8]); | |
1502 | } | |
1503 | ||
1504 | static int __de_get_settings(struct de_private *de, struct ethtool_cmd *ecmd) | |
1505 | { | |
1506 | ecmd->supported = de->media_supported; | |
1507 | ecmd->transceiver = XCVR_INTERNAL; | |
1508 | ecmd->phy_address = 0; | |
1509 | ecmd->advertising = de->media_advertise; | |
f3b197ac | 1510 | |
1da177e4 LT |
1511 | switch (de->media_type) { |
1512 | case DE_MEDIA_AUI: | |
1513 | ecmd->port = PORT_AUI; | |
1514 | ecmd->speed = 5; | |
1515 | break; | |
1516 | case DE_MEDIA_BNC: | |
1517 | ecmd->port = PORT_BNC; | |
1518 | ecmd->speed = 2; | |
1519 | break; | |
1520 | default: | |
1521 | ecmd->port = PORT_TP; | |
1522 | ecmd->speed = SPEED_10; | |
1523 | break; | |
1524 | } | |
f3b197ac | 1525 | |
1da177e4 LT |
1526 | if (dr32(MacMode) & FullDuplex) |
1527 | ecmd->duplex = DUPLEX_FULL; | |
1528 | else | |
1529 | ecmd->duplex = DUPLEX_HALF; | |
1530 | ||
1531 | if (de->media_lock) | |
1532 | ecmd->autoneg = AUTONEG_DISABLE; | |
1533 | else | |
1534 | ecmd->autoneg = AUTONEG_ENABLE; | |
1535 | ||
1536 | /* ignore maxtxpkt, maxrxpkt for now */ | |
1537 | ||
1538 | return 0; | |
1539 | } | |
1540 | ||
1541 | static int __de_set_settings(struct de_private *de, struct ethtool_cmd *ecmd) | |
1542 | { | |
1543 | u32 new_media; | |
1544 | unsigned int media_lock; | |
1545 | ||
1546 | if (ecmd->speed != SPEED_10 && ecmd->speed != 5 && ecmd->speed != 2) | |
1547 | return -EINVAL; | |
1548 | if (de->de21040 && ecmd->speed == 2) | |
1549 | return -EINVAL; | |
1550 | if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL) | |
1551 | return -EINVAL; | |
1552 | if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI && ecmd->port != PORT_BNC) | |
1553 | return -EINVAL; | |
1554 | if (de->de21040 && ecmd->port == PORT_BNC) | |
1555 | return -EINVAL; | |
1556 | if (ecmd->transceiver != XCVR_INTERNAL) | |
1557 | return -EINVAL; | |
1558 | if (ecmd->autoneg != AUTONEG_DISABLE && ecmd->autoneg != AUTONEG_ENABLE) | |
1559 | return -EINVAL; | |
1560 | if (ecmd->advertising & ~de->media_supported) | |
1561 | return -EINVAL; | |
1562 | if (ecmd->autoneg == AUTONEG_ENABLE && | |
1563 | (!(ecmd->advertising & ADVERTISED_Autoneg))) | |
1564 | return -EINVAL; | |
f3b197ac | 1565 | |
1da177e4 LT |
1566 | switch (ecmd->port) { |
1567 | case PORT_AUI: | |
1568 | new_media = DE_MEDIA_AUI; | |
1569 | if (!(ecmd->advertising & ADVERTISED_AUI)) | |
1570 | return -EINVAL; | |
1571 | break; | |
1572 | case PORT_BNC: | |
1573 | new_media = DE_MEDIA_BNC; | |
1574 | if (!(ecmd->advertising & ADVERTISED_BNC)) | |
1575 | return -EINVAL; | |
1576 | break; | |
1577 | default: | |
1578 | if (ecmd->autoneg == AUTONEG_ENABLE) | |
1579 | new_media = DE_MEDIA_TP_AUTO; | |
1580 | else if (ecmd->duplex == DUPLEX_FULL) | |
1581 | new_media = DE_MEDIA_TP_FD; | |
1582 | else | |
1583 | new_media = DE_MEDIA_TP; | |
1584 | if (!(ecmd->advertising & ADVERTISED_TP)) | |
1585 | return -EINVAL; | |
1586 | if (!(ecmd->advertising & (ADVERTISED_10baseT_Full | ADVERTISED_10baseT_Half))) | |
1587 | return -EINVAL; | |
1588 | break; | |
1589 | } | |
f3b197ac | 1590 | |
1da177e4 | 1591 | media_lock = (ecmd->autoneg == AUTONEG_ENABLE) ? 0 : 1; |
f3b197ac | 1592 | |
1da177e4 LT |
1593 | if ((new_media == de->media_type) && |
1594 | (media_lock == de->media_lock) && | |
1595 | (ecmd->advertising == de->media_advertise)) | |
1596 | return 0; /* nothing to change */ | |
f3b197ac | 1597 | |
1da177e4 | 1598 | de_link_down(de); |
387a8562 | 1599 | mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK); |
1da177e4 | 1600 | de_stop_rxtx(de); |
f3b197ac | 1601 | |
1da177e4 LT |
1602 | de->media_type = new_media; |
1603 | de->media_lock = media_lock; | |
1604 | de->media_advertise = ecmd->advertising; | |
1605 | de_set_media(de); | |
387a8562 OZ |
1606 | if (netif_running(de->dev)) |
1607 | de_start_rxtx(de); | |
f3b197ac | 1608 | |
1da177e4 LT |
1609 | return 0; |
1610 | } | |
1611 | ||
1612 | static void de_get_drvinfo (struct net_device *dev,struct ethtool_drvinfo *info) | |
1613 | { | |
8f15ea42 | 1614 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
1615 | |
1616 | strcpy (info->driver, DRV_NAME); | |
1617 | strcpy (info->version, DRV_VERSION); | |
1618 | strcpy (info->bus_info, pci_name(de->pdev)); | |
1619 | info->eedump_len = DE_EEPROM_SIZE; | |
1620 | } | |
1621 | ||
1622 | static int de_get_regs_len(struct net_device *dev) | |
1623 | { | |
1624 | return DE_REGS_SIZE; | |
1625 | } | |
1626 | ||
1627 | static int de_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1628 | { | |
8f15ea42 | 1629 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
1630 | int rc; |
1631 | ||
1632 | spin_lock_irq(&de->lock); | |
1633 | rc = __de_get_settings(de, ecmd); | |
1634 | spin_unlock_irq(&de->lock); | |
1635 | ||
1636 | return rc; | |
1637 | } | |
1638 | ||
1639 | static int de_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1640 | { | |
8f15ea42 | 1641 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
1642 | int rc; |
1643 | ||
1644 | spin_lock_irq(&de->lock); | |
1645 | rc = __de_set_settings(de, ecmd); | |
1646 | spin_unlock_irq(&de->lock); | |
1647 | ||
1648 | return rc; | |
1649 | } | |
1650 | ||
1651 | static u32 de_get_msglevel(struct net_device *dev) | |
1652 | { | |
8f15ea42 | 1653 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
1654 | |
1655 | return de->msg_enable; | |
1656 | } | |
1657 | ||
1658 | static void de_set_msglevel(struct net_device *dev, u32 msglvl) | |
1659 | { | |
8f15ea42 | 1660 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
1661 | |
1662 | de->msg_enable = msglvl; | |
1663 | } | |
1664 | ||
1665 | static int de_get_eeprom(struct net_device *dev, | |
1666 | struct ethtool_eeprom *eeprom, u8 *data) | |
1667 | { | |
8f15ea42 | 1668 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
1669 | |
1670 | if (!de->ee_data) | |
1671 | return -EOPNOTSUPP; | |
1672 | if ((eeprom->offset != 0) || (eeprom->magic != 0) || | |
1673 | (eeprom->len != DE_EEPROM_SIZE)) | |
1674 | return -EINVAL; | |
1675 | memcpy(data, de->ee_data, eeprom->len); | |
1676 | ||
1677 | return 0; | |
1678 | } | |
1679 | ||
1680 | static int de_nway_reset(struct net_device *dev) | |
1681 | { | |
8f15ea42 | 1682 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
1683 | u32 status; |
1684 | ||
1685 | if (de->media_type != DE_MEDIA_TP_AUTO) | |
1686 | return -EINVAL; | |
1687 | if (netif_carrier_ok(de->dev)) | |
1688 | de_link_down(de); | |
1689 | ||
1690 | status = dr32(SIAStatus); | |
1691 | dw32(SIAStatus, (status & ~NWayState) | NWayRestart); | |
1692 | if (netif_msg_link(de)) | |
f639dc7d JP |
1693 | dev_info(&de->dev->dev, "link nway restart, status %x,%x\n", |
1694 | status, dr32(SIAStatus)); | |
1da177e4 LT |
1695 | return 0; |
1696 | } | |
1697 | ||
1698 | static void de_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
1699 | void *data) | |
1700 | { | |
8f15ea42 | 1701 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
1702 | |
1703 | regs->version = (DE_REGS_VER << 2) | de->de21040; | |
1704 | ||
1705 | spin_lock_irq(&de->lock); | |
1706 | __de_get_regs(de, data); | |
1707 | spin_unlock_irq(&de->lock); | |
1708 | } | |
1709 | ||
7282d491 | 1710 | static const struct ethtool_ops de_ethtool_ops = { |
1da177e4 | 1711 | .get_link = ethtool_op_get_link, |
1da177e4 LT |
1712 | .get_drvinfo = de_get_drvinfo, |
1713 | .get_regs_len = de_get_regs_len, | |
1714 | .get_settings = de_get_settings, | |
1715 | .set_settings = de_set_settings, | |
1716 | .get_msglevel = de_get_msglevel, | |
1717 | .set_msglevel = de_set_msglevel, | |
1718 | .get_eeprom = de_get_eeprom, | |
1719 | .nway_reset = de_nway_reset, | |
1720 | .get_regs = de_get_regs, | |
1721 | }; | |
1722 | ||
4c44fd00 | 1723 | static void __devinit de21040_get_mac_address (struct de_private *de) |
1da177e4 LT |
1724 | { |
1725 | unsigned i; | |
1726 | ||
1727 | dw32 (ROMCmd, 0); /* Reset the pointer with a dummy write. */ | |
bc0da3fc | 1728 | udelay(5); |
1da177e4 LT |
1729 | |
1730 | for (i = 0; i < 6; i++) { | |
1731 | int value, boguscnt = 100000; | |
ec1d1ebb | 1732 | do { |
1da177e4 | 1733 | value = dr32(ROMCmd); |
84cc1535 | 1734 | rmb(); |
ec1d1ebb | 1735 | } while (value < 0 && --boguscnt > 0); |
1da177e4 LT |
1736 | de->dev->dev_addr[i] = value; |
1737 | udelay(1); | |
1738 | if (boguscnt <= 0) | |
f639dc7d | 1739 | pr_warning(PFX "timeout reading 21040 MAC address byte %u\n", i); |
1da177e4 LT |
1740 | } |
1741 | } | |
1742 | ||
4c44fd00 | 1743 | static void __devinit de21040_get_media_info(struct de_private *de) |
1da177e4 LT |
1744 | { |
1745 | unsigned int i; | |
1746 | ||
1747 | de->media_type = DE_MEDIA_TP; | |
1748 | de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Full | | |
1749 | SUPPORTED_10baseT_Half | SUPPORTED_AUI; | |
1750 | de->media_advertise = de->media_supported; | |
1751 | ||
1752 | for (i = 0; i < DE_MAX_MEDIA; i++) { | |
1753 | switch (i) { | |
1754 | case DE_MEDIA_AUI: | |
1755 | case DE_MEDIA_TP: | |
1756 | case DE_MEDIA_TP_FD: | |
1757 | de->media[i].type = i; | |
1758 | de->media[i].csr13 = t21040_csr13[i]; | |
1759 | de->media[i].csr14 = t21040_csr14[i]; | |
1760 | de->media[i].csr15 = t21040_csr15[i]; | |
1761 | break; | |
1762 | default: | |
1763 | de->media[i].type = DE_MEDIA_INVALID; | |
1764 | break; | |
1765 | } | |
1766 | } | |
1767 | } | |
1768 | ||
1769 | /* Note: this routine returns extra data bits for size detection. */ | |
4a1d2d81 | 1770 | static unsigned __devinit tulip_read_eeprom(void __iomem *regs, int location, int addr_len) |
1da177e4 LT |
1771 | { |
1772 | int i; | |
1773 | unsigned retval = 0; | |
1774 | void __iomem *ee_addr = regs + ROMCmd; | |
1775 | int read_cmd = location | (EE_READ_CMD << addr_len); | |
1776 | ||
1777 | writel(EE_ENB & ~EE_CS, ee_addr); | |
1778 | writel(EE_ENB, ee_addr); | |
1779 | ||
1780 | /* Shift the read command bits out. */ | |
1781 | for (i = 4 + addr_len; i >= 0; i--) { | |
1782 | short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; | |
1783 | writel(EE_ENB | dataval, ee_addr); | |
1784 | readl(ee_addr); | |
1785 | writel(EE_ENB | dataval | EE_SHIFT_CLK, ee_addr); | |
1786 | readl(ee_addr); | |
1787 | retval = (retval << 1) | ((readl(ee_addr) & EE_DATA_READ) ? 1 : 0); | |
1788 | } | |
1789 | writel(EE_ENB, ee_addr); | |
1790 | readl(ee_addr); | |
1791 | ||
1792 | for (i = 16; i > 0; i--) { | |
1793 | writel(EE_ENB | EE_SHIFT_CLK, ee_addr); | |
1794 | readl(ee_addr); | |
1795 | retval = (retval << 1) | ((readl(ee_addr) & EE_DATA_READ) ? 1 : 0); | |
1796 | writel(EE_ENB, ee_addr); | |
1797 | readl(ee_addr); | |
1798 | } | |
1799 | ||
1800 | /* Terminate the EEPROM access. */ | |
1801 | writel(EE_ENB & ~EE_CS, ee_addr); | |
1802 | return retval; | |
1803 | } | |
1804 | ||
4c44fd00 | 1805 | static void __devinit de21041_get_srom_info (struct de_private *de) |
1da177e4 LT |
1806 | { |
1807 | unsigned i, sa_offset = 0, ofs; | |
1808 | u8 ee_data[DE_EEPROM_SIZE + 6] = {}; | |
1809 | unsigned ee_addr_size = tulip_read_eeprom(de->regs, 0xff, 8) & 0x40000 ? 8 : 6; | |
1810 | struct de_srom_info_leaf *il; | |
1811 | void *bufp; | |
1812 | ||
1813 | /* download entire eeprom */ | |
1814 | for (i = 0; i < DE_EEPROM_WORDS; i++) | |
c559a5bc AV |
1815 | ((__le16 *)ee_data)[i] = |
1816 | cpu_to_le16(tulip_read_eeprom(de->regs, i, ee_addr_size)); | |
1da177e4 LT |
1817 | |
1818 | /* DEC now has a specification but early board makers | |
1819 | just put the address in the first EEPROM locations. */ | |
1820 | /* This does memcmp(eedata, eedata+16, 8) */ | |
bc053d45 RB |
1821 | |
1822 | #ifndef CONFIG_MIPS_COBALT | |
1823 | ||
1da177e4 LT |
1824 | for (i = 0; i < 8; i ++) |
1825 | if (ee_data[i] != ee_data[16+i]) | |
1826 | sa_offset = 20; | |
1827 | ||
bc053d45 RB |
1828 | #endif |
1829 | ||
1da177e4 LT |
1830 | /* store MAC address */ |
1831 | for (i = 0; i < 6; i ++) | |
1832 | de->dev->dev_addr[i] = ee_data[i + sa_offset]; | |
1833 | ||
1834 | /* get offset of controller 0 info leaf. ignore 2nd byte. */ | |
1835 | ofs = ee_data[SROMC0InfoLeaf]; | |
1836 | if (ofs >= (sizeof(ee_data) - sizeof(struct de_srom_info_leaf) - sizeof(struct de_srom_media_block))) | |
1837 | goto bad_srom; | |
1838 | ||
1839 | /* get pointer to info leaf */ | |
1840 | il = (struct de_srom_info_leaf *) &ee_data[ofs]; | |
1841 | ||
1842 | /* paranoia checks */ | |
1843 | if (il->n_blocks == 0) | |
1844 | goto bad_srom; | |
1845 | if ((sizeof(ee_data) - ofs) < | |
1846 | (sizeof(struct de_srom_info_leaf) + (sizeof(struct de_srom_media_block) * il->n_blocks))) | |
1847 | goto bad_srom; | |
1848 | ||
1849 | /* get default media type */ | |
445854f4 | 1850 | switch (get_unaligned(&il->default_media)) { |
1da177e4 LT |
1851 | case 0x0001: de->media_type = DE_MEDIA_BNC; break; |
1852 | case 0x0002: de->media_type = DE_MEDIA_AUI; break; | |
1853 | case 0x0204: de->media_type = DE_MEDIA_TP_FD; break; | |
1854 | default: de->media_type = DE_MEDIA_TP_AUTO; break; | |
1855 | } | |
f3b197ac | 1856 | |
1da177e4 | 1857 | if (netif_msg_probe(de)) |
f639dc7d JP |
1858 | pr_info("de%d: SROM leaf offset %u, default media %s\n", |
1859 | de->board_idx, ofs, media_name[de->media_type]); | |
1da177e4 LT |
1860 | |
1861 | /* init SIA register values to defaults */ | |
1862 | for (i = 0; i < DE_MAX_MEDIA; i++) { | |
1863 | de->media[i].type = DE_MEDIA_INVALID; | |
1864 | de->media[i].csr13 = 0xffff; | |
1865 | de->media[i].csr14 = 0xffff; | |
1866 | de->media[i].csr15 = 0xffff; | |
1867 | } | |
1868 | ||
1869 | /* parse media blocks to see what medias are supported, | |
1870 | * and if any custom CSR values are provided | |
1871 | */ | |
1872 | bufp = ((void *)il) + sizeof(*il); | |
1873 | for (i = 0; i < il->n_blocks; i++) { | |
1874 | struct de_srom_media_block *ib = bufp; | |
1875 | unsigned idx; | |
1876 | ||
1877 | /* index based on media type in media block */ | |
1878 | switch(ib->opts & MediaBlockMask) { | |
1879 | case 0: /* 10baseT */ | |
1880 | de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half | |
1881 | | SUPPORTED_Autoneg; | |
1882 | idx = DE_MEDIA_TP; | |
1883 | de->media[DE_MEDIA_TP_AUTO].type = DE_MEDIA_TP_AUTO; | |
1884 | break; | |
1885 | case 1: /* BNC */ | |
1886 | de->media_supported |= SUPPORTED_BNC; | |
1887 | idx = DE_MEDIA_BNC; | |
1888 | break; | |
1889 | case 2: /* AUI */ | |
1890 | de->media_supported |= SUPPORTED_AUI; | |
1891 | idx = DE_MEDIA_AUI; | |
1892 | break; | |
1893 | case 4: /* 10baseT-FD */ | |
1894 | de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Full | |
1895 | | SUPPORTED_Autoneg; | |
1896 | idx = DE_MEDIA_TP_FD; | |
1897 | de->media[DE_MEDIA_TP_AUTO].type = DE_MEDIA_TP_AUTO; | |
1898 | break; | |
1899 | default: | |
1900 | goto bad_srom; | |
1901 | } | |
1902 | ||
1903 | de->media[idx].type = idx; | |
1904 | ||
1905 | if (netif_msg_probe(de)) | |
f639dc7d JP |
1906 | pr_info("de%d: media block #%u: %s", |
1907 | de->board_idx, i, | |
1908 | media_name[de->media[idx].type]); | |
1da177e4 LT |
1909 | |
1910 | bufp += sizeof (ib->opts); | |
1911 | ||
1912 | if (ib->opts & MediaCustomCSRs) { | |
445854f4 HH |
1913 | de->media[idx].csr13 = get_unaligned(&ib->csr13); |
1914 | de->media[idx].csr14 = get_unaligned(&ib->csr14); | |
1915 | de->media[idx].csr15 = get_unaligned(&ib->csr15); | |
1da177e4 LT |
1916 | bufp += sizeof(ib->csr13) + sizeof(ib->csr14) + |
1917 | sizeof(ib->csr15); | |
1918 | ||
1919 | if (netif_msg_probe(de)) | |
f639dc7d JP |
1920 | pr_cont(" (%x,%x,%x)\n", |
1921 | de->media[idx].csr13, | |
1922 | de->media[idx].csr14, | |
1923 | de->media[idx].csr15); | |
f3b197ac | 1924 | |
1da177e4 | 1925 | } else if (netif_msg_probe(de)) |
f639dc7d | 1926 | pr_cont("\n"); |
1da177e4 LT |
1927 | |
1928 | if (bufp > ((void *)&ee_data[DE_EEPROM_SIZE - 3])) | |
1929 | break; | |
1930 | } | |
1931 | ||
1932 | de->media_advertise = de->media_supported; | |
1933 | ||
1934 | fill_defaults: | |
1935 | /* fill in defaults, for cases where custom CSRs not used */ | |
1936 | for (i = 0; i < DE_MAX_MEDIA; i++) { | |
1937 | if (de->media[i].csr13 == 0xffff) | |
1938 | de->media[i].csr13 = t21041_csr13[i]; | |
e0f9c4f3 OZ |
1939 | if (de->media[i].csr14 == 0xffff) { |
1940 | /* autonegotiation is broken at least on some chip | |
1941 | revisions - rev. 0x21 works, 0x11 does not */ | |
1942 | if (de->pdev->revision < 0x20) | |
1943 | de->media[i].csr14 = t21041_csr14_brk[i]; | |
1944 | else | |
1945 | de->media[i].csr14 = t21041_csr14[i]; | |
1946 | } | |
1da177e4 LT |
1947 | if (de->media[i].csr15 == 0xffff) |
1948 | de->media[i].csr15 = t21041_csr15[i]; | |
1949 | } | |
1950 | ||
c3a9392e | 1951 | de->ee_data = kmemdup(&ee_data[0], DE_EEPROM_SIZE, GFP_KERNEL); |
1da177e4 LT |
1952 | |
1953 | return; | |
1954 | ||
1955 | bad_srom: | |
1956 | /* for error cases, it's ok to assume we support all these */ | |
1957 | for (i = 0; i < DE_MAX_MEDIA; i++) | |
1958 | de->media[i].type = i; | |
1959 | de->media_supported = | |
1960 | SUPPORTED_10baseT_Half | | |
1961 | SUPPORTED_10baseT_Full | | |
1962 | SUPPORTED_Autoneg | | |
1963 | SUPPORTED_TP | | |
1964 | SUPPORTED_AUI | | |
1965 | SUPPORTED_BNC; | |
1966 | goto fill_defaults; | |
1967 | } | |
1968 | ||
90d8743d SH |
1969 | static const struct net_device_ops de_netdev_ops = { |
1970 | .ndo_open = de_open, | |
1971 | .ndo_stop = de_close, | |
1972 | .ndo_set_multicast_list = de_set_rx_mode, | |
1973 | .ndo_start_xmit = de_start_xmit, | |
1974 | .ndo_get_stats = de_get_stats, | |
1975 | .ndo_tx_timeout = de_tx_timeout, | |
1976 | .ndo_change_mtu = eth_change_mtu, | |
1977 | .ndo_set_mac_address = eth_mac_addr, | |
1978 | .ndo_validate_addr = eth_validate_addr, | |
1979 | }; | |
1980 | ||
4a1d2d81 | 1981 | static int __devinit de_init_one (struct pci_dev *pdev, |
1da177e4 LT |
1982 | const struct pci_device_id *ent) |
1983 | { | |
1984 | struct net_device *dev; | |
1985 | struct de_private *de; | |
1986 | int rc; | |
1987 | void __iomem *regs; | |
afc7097f | 1988 | unsigned long pciaddr; |
1da177e4 LT |
1989 | static int board_idx = -1; |
1990 | ||
1991 | board_idx++; | |
1992 | ||
1993 | #ifndef MODULE | |
1994 | if (board_idx == 0) | |
1995 | printk("%s", version); | |
1996 | #endif | |
1997 | ||
1998 | /* allocate a new ethernet device structure, and fill in defaults */ | |
1999 | dev = alloc_etherdev(sizeof(struct de_private)); | |
2000 | if (!dev) | |
2001 | return -ENOMEM; | |
2002 | ||
90d8743d | 2003 | dev->netdev_ops = &de_netdev_ops; |
1da177e4 | 2004 | SET_NETDEV_DEV(dev, &pdev->dev); |
1da177e4 | 2005 | dev->ethtool_ops = &de_ethtool_ops; |
1da177e4 LT |
2006 | dev->watchdog_timeo = TX_TIMEOUT; |
2007 | ||
8f15ea42 | 2008 | de = netdev_priv(dev); |
1da177e4 LT |
2009 | de->de21040 = ent->driver_data == 0 ? 1 : 0; |
2010 | de->pdev = pdev; | |
2011 | de->dev = dev; | |
2012 | de->msg_enable = (debug < 0 ? DE_DEF_MSG_ENABLE : debug); | |
2013 | de->board_idx = board_idx; | |
2014 | spin_lock_init (&de->lock); | |
2015 | init_timer(&de->media_timer); | |
2016 | if (de->de21040) | |
2017 | de->media_timer.function = de21040_media_timer; | |
2018 | else | |
2019 | de->media_timer.function = de21041_media_timer; | |
2020 | de->media_timer.data = (unsigned long) de; | |
2021 | ||
2022 | netif_carrier_off(dev); | |
2023 | netif_stop_queue(dev); | |
2024 | ||
2025 | /* wake up device, assign resources */ | |
2026 | rc = pci_enable_device(pdev); | |
2027 | if (rc) | |
2028 | goto err_out_free; | |
2029 | ||
2030 | /* reserve PCI resources to ensure driver atomicity */ | |
2031 | rc = pci_request_regions(pdev, DRV_NAME); | |
2032 | if (rc) | |
2033 | goto err_out_disable; | |
2034 | ||
2035 | /* check for invalid IRQ value */ | |
2036 | if (pdev->irq < 2) { | |
2037 | rc = -EIO; | |
f639dc7d | 2038 | pr_err(PFX "invalid irq (%d) for pci dev %s\n", |
1da177e4 LT |
2039 | pdev->irq, pci_name(pdev)); |
2040 | goto err_out_res; | |
2041 | } | |
2042 | ||
2043 | dev->irq = pdev->irq; | |
2044 | ||
2045 | /* obtain and check validity of PCI I/O address */ | |
2046 | pciaddr = pci_resource_start(pdev, 1); | |
2047 | if (!pciaddr) { | |
2048 | rc = -EIO; | |
f639dc7d | 2049 | pr_err(PFX "no MMIO resource for pci dev %s\n", pci_name(pdev)); |
1da177e4 LT |
2050 | goto err_out_res; |
2051 | } | |
2052 | if (pci_resource_len(pdev, 1) < DE_REGS_SIZE) { | |
2053 | rc = -EIO; | |
f639dc7d JP |
2054 | pr_err(PFX "MMIO resource (%llx) too small on pci dev %s\n", |
2055 | (unsigned long long)pci_resource_len(pdev, 1), | |
2056 | pci_name(pdev)); | |
1da177e4 LT |
2057 | goto err_out_res; |
2058 | } | |
2059 | ||
2060 | /* remap CSR registers */ | |
2061 | regs = ioremap_nocache(pciaddr, DE_REGS_SIZE); | |
2062 | if (!regs) { | |
2063 | rc = -EIO; | |
f639dc7d JP |
2064 | pr_err(PFX "Cannot map PCI MMIO (%llx@%lx) on pci dev %s\n", |
2065 | (unsigned long long)pci_resource_len(pdev, 1), | |
2066 | pciaddr, pci_name(pdev)); | |
1da177e4 LT |
2067 | goto err_out_res; |
2068 | } | |
2069 | dev->base_addr = (unsigned long) regs; | |
2070 | de->regs = regs; | |
2071 | ||
2072 | de_adapter_wake(de); | |
2073 | ||
2074 | /* make sure hardware is not running */ | |
2075 | rc = de_reset_mac(de); | |
2076 | if (rc) { | |
f639dc7d | 2077 | pr_err(PFX "Cannot reset MAC, pci dev %s\n", pci_name(pdev)); |
1da177e4 LT |
2078 | goto err_out_iomap; |
2079 | } | |
2080 | ||
2081 | /* get MAC address, initialize default media type and | |
2082 | * get list of supported media | |
2083 | */ | |
2084 | if (de->de21040) { | |
2085 | de21040_get_mac_address(de); | |
2086 | de21040_get_media_info(de); | |
2087 | } else { | |
2088 | de21041_get_srom_info(de); | |
2089 | } | |
2090 | ||
2091 | /* register new network interface with kernel */ | |
2092 | rc = register_netdev(dev); | |
2093 | if (rc) | |
2094 | goto err_out_iomap; | |
2095 | ||
2096 | /* print info about board and interface just registered */ | |
f639dc7d JP |
2097 | dev_info(&dev->dev, "%s at 0x%lx, %pM, IRQ %d\n", |
2098 | de->de21040 ? "21040" : "21041", | |
2099 | dev->base_addr, | |
2100 | dev->dev_addr, | |
2101 | dev->irq); | |
1da177e4 LT |
2102 | |
2103 | pci_set_drvdata(pdev, dev); | |
2104 | ||
2105 | /* enable busmastering */ | |
2106 | pci_set_master(pdev); | |
2107 | ||
2108 | /* put adapter to sleep */ | |
2109 | de_adapter_sleep(de); | |
2110 | ||
2111 | return 0; | |
2112 | ||
2113 | err_out_iomap: | |
b4558ea9 | 2114 | kfree(de->ee_data); |
1da177e4 LT |
2115 | iounmap(regs); |
2116 | err_out_res: | |
2117 | pci_release_regions(pdev); | |
2118 | err_out_disable: | |
2119 | pci_disable_device(pdev); | |
2120 | err_out_free: | |
2121 | free_netdev(dev); | |
2122 | return rc; | |
2123 | } | |
2124 | ||
4a1d2d81 | 2125 | static void __devexit de_remove_one (struct pci_dev *pdev) |
1da177e4 LT |
2126 | { |
2127 | struct net_device *dev = pci_get_drvdata(pdev); | |
8f15ea42 | 2128 | struct de_private *de = netdev_priv(dev); |
1da177e4 | 2129 | |
7e0b58f3 | 2130 | BUG_ON(!dev); |
1da177e4 | 2131 | unregister_netdev(dev); |
b4558ea9 | 2132 | kfree(de->ee_data); |
1da177e4 LT |
2133 | iounmap(de->regs); |
2134 | pci_release_regions(pdev); | |
2135 | pci_disable_device(pdev); | |
2136 | pci_set_drvdata(pdev, NULL); | |
2137 | free_netdev(dev); | |
2138 | } | |
2139 | ||
2140 | #ifdef CONFIG_PM | |
2141 | ||
05adc3b7 | 2142 | static int de_suspend (struct pci_dev *pdev, pm_message_t state) |
1da177e4 LT |
2143 | { |
2144 | struct net_device *dev = pci_get_drvdata (pdev); | |
8f15ea42 | 2145 | struct de_private *de = netdev_priv(dev); |
1da177e4 LT |
2146 | |
2147 | rtnl_lock(); | |
2148 | if (netif_running (dev)) { | |
2149 | del_timer_sync(&de->media_timer); | |
2150 | ||
2151 | disable_irq(dev->irq); | |
2152 | spin_lock_irq(&de->lock); | |
2153 | ||
2154 | de_stop_hw(de); | |
2155 | netif_stop_queue(dev); | |
2156 | netif_device_detach(dev); | |
2157 | netif_carrier_off(dev); | |
2158 | ||
2159 | spin_unlock_irq(&de->lock); | |
2160 | enable_irq(dev->irq); | |
f3b197ac | 2161 | |
1da177e4 LT |
2162 | /* Update the error counts. */ |
2163 | __de_get_stats(de); | |
2164 | ||
2165 | synchronize_irq(dev->irq); | |
2166 | de_clean_rings(de); | |
2167 | ||
2168 | de_adapter_sleep(de); | |
2169 | pci_disable_device(pdev); | |
2170 | } else { | |
2171 | netif_device_detach(dev); | |
2172 | } | |
2173 | rtnl_unlock(); | |
2174 | return 0; | |
2175 | } | |
2176 | ||
2177 | static int de_resume (struct pci_dev *pdev) | |
2178 | { | |
2179 | struct net_device *dev = pci_get_drvdata (pdev); | |
8f15ea42 | 2180 | struct de_private *de = netdev_priv(dev); |
9f486ae1 | 2181 | int retval = 0; |
1da177e4 LT |
2182 | |
2183 | rtnl_lock(); | |
2184 | if (netif_device_present(dev)) | |
2185 | goto out; | |
9f486ae1 VH |
2186 | if (!netif_running(dev)) |
2187 | goto out_attach; | |
2188 | if ((retval = pci_enable_device(pdev))) { | |
f639dc7d | 2189 | dev_err(&dev->dev, "pci_enable_device failed in resume\n"); |
9f486ae1 | 2190 | goto out; |
1da177e4 | 2191 | } |
b0255a02 OZ |
2192 | pci_set_master(pdev); |
2193 | de_init_rings(de); | |
9f486ae1 VH |
2194 | de_init_hw(de); |
2195 | out_attach: | |
2196 | netif_device_attach(dev); | |
1da177e4 LT |
2197 | out: |
2198 | rtnl_unlock(); | |
2199 | return 0; | |
2200 | } | |
2201 | ||
2202 | #endif /* CONFIG_PM */ | |
2203 | ||
2204 | static struct pci_driver de_driver = { | |
2205 | .name = DRV_NAME, | |
2206 | .id_table = de_pci_tbl, | |
2207 | .probe = de_init_one, | |
4a1d2d81 | 2208 | .remove = __devexit_p(de_remove_one), |
1da177e4 LT |
2209 | #ifdef CONFIG_PM |
2210 | .suspend = de_suspend, | |
2211 | .resume = de_resume, | |
2212 | #endif | |
2213 | }; | |
2214 | ||
2215 | static int __init de_init (void) | |
2216 | { | |
2217 | #ifdef MODULE | |
2218 | printk("%s", version); | |
2219 | #endif | |
29917620 | 2220 | return pci_register_driver(&de_driver); |
1da177e4 LT |
2221 | } |
2222 | ||
2223 | static void __exit de_exit (void) | |
2224 | { | |
2225 | pci_unregister_driver (&de_driver); | |
2226 | } | |
2227 | ||
2228 | module_init(de_init); | |
2229 | module_exit(de_exit); |