Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * rrunner.c: Linux driver for the Essential RoadRunner HIPPI board. | |
3 | * | |
4 | * Copyright (C) 1998-2002 by Jes Sorensen, <jes@wildopensource.com>. | |
5 | * | |
6 | * Thanks to Essential Communication for providing us with hardware | |
7 | * and very comprehensive documentation without which I would not have | |
8 | * been able to write this driver. A special thank you to John Gibbon | |
9 | * for sorting out the legal issues, with the NDA, allowing the code to | |
10 | * be released under the GPL. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * Thanks to Jayaram Bhat from ODS/Essential for fixing some of the | |
18 | * stupid bugs in my code. | |
19 | * | |
20 | * Softnet support and various other patches from Val Henson of | |
21 | * ODS/Essential. | |
22 | * | |
23 | * PCI DMA mapping code partly based on work by Francois Romieu. | |
24 | */ | |
25 | ||
26 | ||
27 | #define DEBUG 1 | |
28 | #define RX_DMA_SKBUFF 1 | |
29 | #define PKT_COPY_THRESHOLD 512 | |
30 | ||
1da177e4 LT |
31 | #include <linux/module.h> |
32 | #include <linux/types.h> | |
33 | #include <linux/errno.h> | |
34 | #include <linux/ioport.h> | |
35 | #include <linux/pci.h> | |
36 | #include <linux/kernel.h> | |
37 | #include <linux/netdevice.h> | |
38 | #include <linux/hippidevice.h> | |
39 | #include <linux/skbuff.h> | |
40 | #include <linux/init.h> | |
41 | #include <linux/delay.h> | |
42 | #include <linux/mm.h> | |
5a0e3ad6 | 43 | #include <linux/slab.h> |
1da177e4 LT |
44 | #include <net/sock.h> |
45 | ||
1da177e4 LT |
46 | #include <asm/cache.h> |
47 | #include <asm/byteorder.h> | |
48 | #include <asm/io.h> | |
49 | #include <asm/irq.h> | |
50 | #include <asm/uaccess.h> | |
51 | ||
52 | #define rr_if_busy(dev) netif_queue_stopped(dev) | |
53 | #define rr_if_running(dev) netif_running(dev) | |
54 | ||
55 | #include "rrunner.h" | |
56 | ||
57 | #define RUN_AT(x) (jiffies + (x)) | |
58 | ||
59 | ||
60 | MODULE_AUTHOR("Jes Sorensen <jes@wildopensource.com>"); | |
61 | MODULE_DESCRIPTION("Essential RoadRunner HIPPI driver"); | |
62 | MODULE_LICENSE("GPL"); | |
63 | ||
6e945491 | 64 | static char version[] = "rrunner.c: v0.50 11/11/2002 Jes Sorensen (jes@wildopensource.com)\n"; |
1da177e4 | 65 | |
748ff68f SH |
66 | |
67 | static const struct net_device_ops rr_netdev_ops = { | |
68 | .ndo_open = rr_open, | |
69 | .ndo_stop = rr_close, | |
70 | .ndo_do_ioctl = rr_ioctl, | |
71 | .ndo_start_xmit = rr_start_xmit, | |
72 | .ndo_change_mtu = hippi_change_mtu, | |
73 | .ndo_set_mac_address = hippi_mac_addr, | |
74 | }; | |
75 | ||
1da177e4 LT |
76 | /* |
77 | * Implementation notes: | |
78 | * | |
79 | * The DMA engine only allows for DMA within physical 64KB chunks of | |
80 | * memory. The current approach of the driver (and stack) is to use | |
81 | * linear blocks of memory for the skbuffs. However, as the data block | |
82 | * is always the first part of the skb and skbs are 2^n aligned so we | |
83 | * are guarantted to get the whole block within one 64KB align 64KB | |
84 | * chunk. | |
85 | * | |
86 | * On the long term, relying on being able to allocate 64KB linear | |
87 | * chunks of memory is not feasible and the skb handling code and the | |
88 | * stack will need to know about I/O vectors or something similar. | |
89 | */ | |
90 | ||
1dd06ae8 | 91 | static int rr_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
1da177e4 LT |
92 | { |
93 | struct net_device *dev; | |
94 | static int version_disp; | |
95 | u8 pci_latency; | |
96 | struct rr_private *rrpriv; | |
97 | void *tmpptr; | |
98 | dma_addr_t ring_dma; | |
99 | int ret = -ENOMEM; | |
100 | ||
101 | dev = alloc_hippi_dev(sizeof(struct rr_private)); | |
102 | if (!dev) | |
103 | goto out3; | |
104 | ||
105 | ret = pci_enable_device(pdev); | |
106 | if (ret) { | |
107 | ret = -ENODEV; | |
108 | goto out2; | |
109 | } | |
110 | ||
111 | rrpriv = netdev_priv(dev); | |
112 | ||
1da177e4 LT |
113 | SET_NETDEV_DEV(dev, &pdev->dev); |
114 | ||
0193fc5e FR |
115 | ret = pci_request_regions(pdev, "rrunner"); |
116 | if (ret < 0) | |
1da177e4 | 117 | goto out; |
1da177e4 LT |
118 | |
119 | pci_set_drvdata(pdev, dev); | |
120 | ||
121 | rrpriv->pci_dev = pdev; | |
122 | ||
123 | spin_lock_init(&rrpriv->lock); | |
124 | ||
748ff68f | 125 | dev->netdev_ops = &rr_netdev_ops; |
1da177e4 | 126 | |
1da177e4 LT |
127 | /* display version info if adapter is found */ |
128 | if (!version_disp) { | |
129 | /* set display flag to TRUE so that */ | |
130 | /* we only display this string ONCE */ | |
131 | version_disp = 1; | |
132 | printk(version); | |
133 | } | |
134 | ||
135 | pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency); | |
136 | if (pci_latency <= 0x58){ | |
137 | pci_latency = 0x58; | |
138 | pci_write_config_byte(pdev, PCI_LATENCY_TIMER, pci_latency); | |
139 | } | |
140 | ||
141 | pci_set_master(pdev); | |
142 | ||
143 | printk(KERN_INFO "%s: Essential RoadRunner serial HIPPI " | |
ecffe75f RD |
144 | "at 0x%llx, irq %i, PCI latency %i\n", dev->name, |
145 | (unsigned long long)pci_resource_start(pdev, 0), | |
146 | pdev->irq, pci_latency); | |
1da177e4 LT |
147 | |
148 | /* | |
0193fc5e | 149 | * Remap the MMIO regs into kernel space. |
1da177e4 | 150 | */ |
0193fc5e FR |
151 | rrpriv->regs = pci_iomap(pdev, 0, 0x1000); |
152 | if (!rrpriv->regs) { | |
1da177e4 LT |
153 | printk(KERN_ERR "%s: Unable to map I/O register, " |
154 | "RoadRunner will be disabled.\n", dev->name); | |
155 | ret = -EIO; | |
156 | goto out; | |
157 | } | |
158 | ||
159 | tmpptr = pci_alloc_consistent(pdev, TX_TOTAL_SIZE, &ring_dma); | |
160 | rrpriv->tx_ring = tmpptr; | |
161 | rrpriv->tx_ring_dma = ring_dma; | |
162 | ||
163 | if (!tmpptr) { | |
164 | ret = -ENOMEM; | |
165 | goto out; | |
166 | } | |
167 | ||
168 | tmpptr = pci_alloc_consistent(pdev, RX_TOTAL_SIZE, &ring_dma); | |
169 | rrpriv->rx_ring = tmpptr; | |
170 | rrpriv->rx_ring_dma = ring_dma; | |
171 | ||
172 | if (!tmpptr) { | |
173 | ret = -ENOMEM; | |
174 | goto out; | |
175 | } | |
176 | ||
177 | tmpptr = pci_alloc_consistent(pdev, EVT_RING_SIZE, &ring_dma); | |
178 | rrpriv->evt_ring = tmpptr; | |
179 | rrpriv->evt_ring_dma = ring_dma; | |
180 | ||
181 | if (!tmpptr) { | |
182 | ret = -ENOMEM; | |
183 | goto out; | |
184 | } | |
185 | ||
186 | /* | |
187 | * Don't access any register before this point! | |
188 | */ | |
189 | #ifdef __BIG_ENDIAN | |
190 | writel(readl(&rrpriv->regs->HostCtrl) | NO_SWAP, | |
191 | &rrpriv->regs->HostCtrl); | |
192 | #endif | |
193 | /* | |
194 | * Need to add a case for little-endian 64-bit hosts here. | |
195 | */ | |
196 | ||
197 | rr_init(dev); | |
198 | ||
1da177e4 LT |
199 | ret = register_netdev(dev); |
200 | if (ret) | |
201 | goto out; | |
202 | return 0; | |
203 | ||
204 | out: | |
fef4c86e DO |
205 | if (rrpriv->evt_ring) |
206 | pci_free_consistent(pdev, EVT_RING_SIZE, rrpriv->evt_ring, | |
207 | rrpriv->evt_ring_dma); | |
1da177e4 | 208 | if (rrpriv->rx_ring) |
6aa20a22 | 209 | pci_free_consistent(pdev, RX_TOTAL_SIZE, rrpriv->rx_ring, |
1da177e4 LT |
210 | rrpriv->rx_ring_dma); |
211 | if (rrpriv->tx_ring) | |
212 | pci_free_consistent(pdev, TX_TOTAL_SIZE, rrpriv->tx_ring, | |
213 | rrpriv->tx_ring_dma); | |
214 | if (rrpriv->regs) | |
0193fc5e | 215 | pci_iounmap(pdev, rrpriv->regs); |
1da177e4 LT |
216 | if (pdev) { |
217 | pci_release_regions(pdev); | |
218 | pci_set_drvdata(pdev, NULL); | |
219 | } | |
220 | out2: | |
221 | free_netdev(dev); | |
222 | out3: | |
223 | return ret; | |
224 | } | |
225 | ||
6e945491 | 226 | static void rr_remove_one(struct pci_dev *pdev) |
1da177e4 LT |
227 | { |
228 | struct net_device *dev = pci_get_drvdata(pdev); | |
0193fc5e | 229 | struct rr_private *rr = netdev_priv(dev); |
1da177e4 | 230 | |
0193fc5e FR |
231 | if (!(readl(&rr->regs->HostCtrl) & NIC_HALTED)) { |
232 | printk(KERN_ERR "%s: trying to unload running NIC\n", | |
233 | dev->name); | |
234 | writel(HALT_NIC, &rr->regs->HostCtrl); | |
1da177e4 | 235 | } |
0193fc5e FR |
236 | |
237 | unregister_netdev(dev); | |
238 | pci_free_consistent(pdev, EVT_RING_SIZE, rr->evt_ring, | |
239 | rr->evt_ring_dma); | |
240 | pci_free_consistent(pdev, RX_TOTAL_SIZE, rr->rx_ring, | |
241 | rr->rx_ring_dma); | |
242 | pci_free_consistent(pdev, TX_TOTAL_SIZE, rr->tx_ring, | |
243 | rr->tx_ring_dma); | |
244 | pci_iounmap(pdev, rr->regs); | |
245 | pci_release_regions(pdev); | |
246 | pci_disable_device(pdev); | |
247 | pci_set_drvdata(pdev, NULL); | |
248 | free_netdev(dev); | |
1da177e4 LT |
249 | } |
250 | ||
251 | ||
252 | /* | |
253 | * Commands are considered to be slow, thus there is no reason to | |
254 | * inline this. | |
255 | */ | |
256 | static void rr_issue_cmd(struct rr_private *rrpriv, struct cmd *cmd) | |
257 | { | |
258 | struct rr_regs __iomem *regs; | |
259 | u32 idx; | |
260 | ||
261 | regs = rrpriv->regs; | |
262 | /* | |
263 | * This is temporary - it will go away in the final version. | |
264 | * We probably also want to make this function inline. | |
265 | */ | |
266 | if (readl(®s->HostCtrl) & NIC_HALTED){ | |
267 | printk("issuing command for halted NIC, code 0x%x, " | |
268 | "HostCtrl %08x\n", cmd->code, readl(®s->HostCtrl)); | |
269 | if (readl(®s->Mode) & FATAL_ERR) | |
270 | printk("error codes Fail1 %02x, Fail2 %02x\n", | |
271 | readl(®s->Fail1), readl(®s->Fail2)); | |
272 | } | |
273 | ||
274 | idx = rrpriv->info->cmd_ctrl.pi; | |
275 | ||
276 | writel(*(u32*)(cmd), ®s->CmdRing[idx]); | |
277 | wmb(); | |
278 | ||
279 | idx = (idx - 1) % CMD_RING_ENTRIES; | |
280 | rrpriv->info->cmd_ctrl.pi = idx; | |
281 | wmb(); | |
282 | ||
283 | if (readl(®s->Mode) & FATAL_ERR) | |
284 | printk("error code %02x\n", readl(®s->Fail1)); | |
285 | } | |
286 | ||
287 | ||
288 | /* | |
289 | * Reset the board in a sensible manner. The NIC is already halted | |
290 | * when we get here and a spin-lock is held. | |
291 | */ | |
292 | static int rr_reset(struct net_device *dev) | |
293 | { | |
294 | struct rr_private *rrpriv; | |
295 | struct rr_regs __iomem *regs; | |
1da177e4 LT |
296 | u32 start_pc; |
297 | int i; | |
298 | ||
299 | rrpriv = netdev_priv(dev); | |
300 | regs = rrpriv->regs; | |
301 | ||
302 | rr_load_firmware(dev); | |
303 | ||
304 | writel(0x01000000, ®s->TX_state); | |
305 | writel(0xff800000, ®s->RX_state); | |
306 | writel(0, ®s->AssistState); | |
307 | writel(CLEAR_INTA, ®s->LocalCtrl); | |
308 | writel(0x01, ®s->BrkPt); | |
309 | writel(0, ®s->Timer); | |
310 | writel(0, ®s->TimerRef); | |
311 | writel(RESET_DMA, ®s->DmaReadState); | |
312 | writel(RESET_DMA, ®s->DmaWriteState); | |
313 | writel(0, ®s->DmaWriteHostHi); | |
314 | writel(0, ®s->DmaWriteHostLo); | |
315 | writel(0, ®s->DmaReadHostHi); | |
316 | writel(0, ®s->DmaReadHostLo); | |
317 | writel(0, ®s->DmaReadLen); | |
318 | writel(0, ®s->DmaWriteLen); | |
319 | writel(0, ®s->DmaWriteLcl); | |
320 | writel(0, ®s->DmaWriteIPchecksum); | |
321 | writel(0, ®s->DmaReadLcl); | |
322 | writel(0, ®s->DmaReadIPchecksum); | |
323 | writel(0, ®s->PciState); | |
324 | #if (BITS_PER_LONG == 64) && defined __LITTLE_ENDIAN | |
325 | writel(SWAP_DATA | PTR64BIT | PTR_WD_SWAP, ®s->Mode); | |
326 | #elif (BITS_PER_LONG == 64) | |
327 | writel(SWAP_DATA | PTR64BIT | PTR_WD_NOSWAP, ®s->Mode); | |
328 | #else | |
329 | writel(SWAP_DATA | PTR32BIT | PTR_WD_NOSWAP, ®s->Mode); | |
330 | #endif | |
331 | ||
332 | #if 0 | |
333 | /* | |
334 | * Don't worry, this is just black magic. | |
335 | */ | |
336 | writel(0xdf000, ®s->RxBase); | |
337 | writel(0xdf000, ®s->RxPrd); | |
338 | writel(0xdf000, ®s->RxCon); | |
339 | writel(0xce000, ®s->TxBase); | |
340 | writel(0xce000, ®s->TxPrd); | |
341 | writel(0xce000, ®s->TxCon); | |
342 | writel(0, ®s->RxIndPro); | |
343 | writel(0, ®s->RxIndCon); | |
344 | writel(0, ®s->RxIndRef); | |
345 | writel(0, ®s->TxIndPro); | |
346 | writel(0, ®s->TxIndCon); | |
347 | writel(0, ®s->TxIndRef); | |
348 | writel(0xcc000, ®s->pad10[0]); | |
349 | writel(0, ®s->DrCmndPro); | |
350 | writel(0, ®s->DrCmndCon); | |
351 | writel(0, ®s->DwCmndPro); | |
352 | writel(0, ®s->DwCmndCon); | |
353 | writel(0, ®s->DwCmndRef); | |
354 | writel(0, ®s->DrDataPro); | |
355 | writel(0, ®s->DrDataCon); | |
356 | writel(0, ®s->DrDataRef); | |
357 | writel(0, ®s->DwDataPro); | |
358 | writel(0, ®s->DwDataCon); | |
359 | writel(0, ®s->DwDataRef); | |
360 | #endif | |
361 | ||
362 | writel(0xffffffff, ®s->MbEvent); | |
363 | writel(0, ®s->Event); | |
364 | ||
365 | writel(0, ®s->TxPi); | |
366 | writel(0, ®s->IpRxPi); | |
367 | ||
368 | writel(0, ®s->EvtCon); | |
369 | writel(0, ®s->EvtPrd); | |
370 | ||
371 | rrpriv->info->evt_ctrl.pi = 0; | |
372 | ||
373 | for (i = 0; i < CMD_RING_ENTRIES; i++) | |
374 | writel(0, ®s->CmdRing[i]); | |
375 | ||
376 | /* | |
377 | * Why 32 ? is this not cache line size dependent? | |
378 | */ | |
379 | writel(RBURST_64|WBURST_64, ®s->PciState); | |
380 | wmb(); | |
381 | ||
cf962378 AV |
382 | start_pc = rr_read_eeprom_word(rrpriv, |
383 | offsetof(struct eeprom, rncd_info.FwStart)); | |
1da177e4 LT |
384 | |
385 | #if (DEBUG > 1) | |
386 | printk("%s: Executing firmware at address 0x%06x\n", | |
387 | dev->name, start_pc); | |
388 | #endif | |
389 | ||
390 | writel(start_pc + 0x800, ®s->Pc); | |
391 | wmb(); | |
392 | udelay(5); | |
393 | ||
394 | writel(start_pc, ®s->Pc); | |
395 | wmb(); | |
396 | ||
397 | return 0; | |
398 | } | |
399 | ||
400 | ||
401 | /* | |
402 | * Read a string from the EEPROM. | |
403 | */ | |
404 | static unsigned int rr_read_eeprom(struct rr_private *rrpriv, | |
405 | unsigned long offset, | |
406 | unsigned char *buf, | |
407 | unsigned long length) | |
408 | { | |
409 | struct rr_regs __iomem *regs = rrpriv->regs; | |
410 | u32 misc, io, host, i; | |
411 | ||
412 | io = readl(®s->ExtIo); | |
413 | writel(0, ®s->ExtIo); | |
414 | misc = readl(®s->LocalCtrl); | |
415 | writel(0, ®s->LocalCtrl); | |
416 | host = readl(®s->HostCtrl); | |
417 | writel(host | HALT_NIC, ®s->HostCtrl); | |
418 | mb(); | |
419 | ||
420 | for (i = 0; i < length; i++){ | |
421 | writel((EEPROM_BASE + ((offset+i) << 3)), ®s->WinBase); | |
422 | mb(); | |
423 | buf[i] = (readl(®s->WinData) >> 24) & 0xff; | |
424 | mb(); | |
425 | } | |
426 | ||
427 | writel(host, ®s->HostCtrl); | |
428 | writel(misc, ®s->LocalCtrl); | |
429 | writel(io, ®s->ExtIo); | |
430 | mb(); | |
431 | return i; | |
432 | } | |
433 | ||
434 | ||
435 | /* | |
436 | * Shortcut to read one word (4 bytes) out of the EEPROM and convert | |
437 | * it to our CPU byte-order. | |
438 | */ | |
439 | static u32 rr_read_eeprom_word(struct rr_private *rrpriv, | |
cf962378 | 440 | size_t offset) |
1da177e4 | 441 | { |
cf962378 | 442 | __be32 word; |
1da177e4 | 443 | |
cf962378 AV |
444 | if ((rr_read_eeprom(rrpriv, offset, |
445 | (unsigned char *)&word, 4) == 4)) | |
1da177e4 LT |
446 | return be32_to_cpu(word); |
447 | return 0; | |
448 | } | |
449 | ||
450 | ||
451 | /* | |
452 | * Write a string to the EEPROM. | |
453 | * | |
454 | * This is only called when the firmware is not running. | |
455 | */ | |
456 | static unsigned int write_eeprom(struct rr_private *rrpriv, | |
457 | unsigned long offset, | |
458 | unsigned char *buf, | |
459 | unsigned long length) | |
460 | { | |
461 | struct rr_regs __iomem *regs = rrpriv->regs; | |
462 | u32 misc, io, data, i, j, ready, error = 0; | |
463 | ||
464 | io = readl(®s->ExtIo); | |
465 | writel(0, ®s->ExtIo); | |
466 | misc = readl(®s->LocalCtrl); | |
467 | writel(ENABLE_EEPROM_WRITE, ®s->LocalCtrl); | |
468 | mb(); | |
469 | ||
470 | for (i = 0; i < length; i++){ | |
471 | writel((EEPROM_BASE + ((offset+i) << 3)), ®s->WinBase); | |
472 | mb(); | |
473 | data = buf[i] << 24; | |
474 | /* | |
475 | * Only try to write the data if it is not the same | |
476 | * value already. | |
477 | */ | |
478 | if ((readl(®s->WinData) & 0xff000000) != data){ | |
479 | writel(data, ®s->WinData); | |
480 | ready = 0; | |
481 | j = 0; | |
482 | mb(); | |
483 | while(!ready){ | |
484 | udelay(20); | |
485 | if ((readl(®s->WinData) & 0xff000000) == | |
486 | data) | |
487 | ready = 1; | |
488 | mb(); | |
489 | if (j++ > 5000){ | |
490 | printk("data mismatch: %08x, " | |
491 | "WinData %08x\n", data, | |
492 | readl(®s->WinData)); | |
493 | ready = 1; | |
494 | error = 1; | |
495 | } | |
496 | } | |
497 | } | |
498 | } | |
499 | ||
500 | writel(misc, ®s->LocalCtrl); | |
501 | writel(io, ®s->ExtIo); | |
502 | mb(); | |
503 | ||
504 | return error; | |
505 | } | |
506 | ||
507 | ||
6e945491 | 508 | static int rr_init(struct net_device *dev) |
1da177e4 LT |
509 | { |
510 | struct rr_private *rrpriv; | |
511 | struct rr_regs __iomem *regs; | |
1da177e4 | 512 | u32 sram_size, rev; |
1da177e4 LT |
513 | |
514 | rrpriv = netdev_priv(dev); | |
515 | regs = rrpriv->regs; | |
516 | ||
517 | rev = readl(®s->FwRev); | |
518 | rrpriv->fw_rev = rev; | |
519 | if (rev > 0x00020024) | |
520 | printk(" Firmware revision: %i.%i.%i\n", (rev >> 16), | |
521 | ((rev >> 8) & 0xff), (rev & 0xff)); | |
522 | else if (rev >= 0x00020000) { | |
523 | printk(" Firmware revision: %i.%i.%i (2.0.37 or " | |
524 | "later is recommended)\n", (rev >> 16), | |
525 | ((rev >> 8) & 0xff), (rev & 0xff)); | |
526 | }else{ | |
527 | printk(" Firmware revision too old: %i.%i.%i, please " | |
528 | "upgrade to 2.0.37 or later.\n", | |
529 | (rev >> 16), ((rev >> 8) & 0xff), (rev & 0xff)); | |
530 | } | |
531 | ||
532 | #if (DEBUG > 2) | |
533 | printk(" Maximum receive rings %i\n", readl(®s->MaxRxRng)); | |
534 | #endif | |
535 | ||
536 | /* | |
537 | * Read the hardware address from the eeprom. The HW address | |
538 | * is not really necessary for HIPPI but awfully convenient. | |
539 | * The pointer arithmetic to put it in dev_addr is ugly, but | |
540 | * Donald Becker does it this way for the GigE version of this | |
541 | * card and it's shorter and more portable than any | |
542 | * other method I've seen. -VAL | |
543 | */ | |
544 | ||
cf962378 AV |
545 | *(__be16 *)(dev->dev_addr) = |
546 | htons(rr_read_eeprom_word(rrpriv, offsetof(struct eeprom, manf.BoardULA))); | |
547 | *(__be32 *)(dev->dev_addr+2) = | |
548 | htonl(rr_read_eeprom_word(rrpriv, offsetof(struct eeprom, manf.BoardULA[4]))); | |
6aa20a22 | 549 | |
e174961c | 550 | printk(" MAC: %pM\n", dev->dev_addr); |
1da177e4 | 551 | |
cf962378 | 552 | sram_size = rr_read_eeprom_word(rrpriv, 8); |
1da177e4 LT |
553 | printk(" SRAM size 0x%06x\n", sram_size); |
554 | ||
1da177e4 LT |
555 | return 0; |
556 | } | |
557 | ||
558 | ||
559 | static int rr_init1(struct net_device *dev) | |
560 | { | |
561 | struct rr_private *rrpriv; | |
562 | struct rr_regs __iomem *regs; | |
563 | unsigned long myjif, flags; | |
564 | struct cmd cmd; | |
565 | u32 hostctrl; | |
566 | int ecode = 0; | |
567 | short i; | |
568 | ||
569 | rrpriv = netdev_priv(dev); | |
570 | regs = rrpriv->regs; | |
571 | ||
572 | spin_lock_irqsave(&rrpriv->lock, flags); | |
573 | ||
574 | hostctrl = readl(®s->HostCtrl); | |
575 | writel(hostctrl | HALT_NIC | RR_CLEAR_INT, ®s->HostCtrl); | |
576 | wmb(); | |
577 | ||
578 | if (hostctrl & PARITY_ERR){ | |
579 | printk("%s: Parity error halting NIC - this is serious!\n", | |
580 | dev->name); | |
581 | spin_unlock_irqrestore(&rrpriv->lock, flags); | |
582 | ecode = -EFAULT; | |
583 | goto error; | |
584 | } | |
585 | ||
586 | set_rxaddr(regs, rrpriv->rx_ctrl_dma); | |
587 | set_infoaddr(regs, rrpriv->info_dma); | |
588 | ||
589 | rrpriv->info->evt_ctrl.entry_size = sizeof(struct event); | |
590 | rrpriv->info->evt_ctrl.entries = EVT_RING_ENTRIES; | |
591 | rrpriv->info->evt_ctrl.mode = 0; | |
592 | rrpriv->info->evt_ctrl.pi = 0; | |
593 | set_rraddr(&rrpriv->info->evt_ctrl.rngptr, rrpriv->evt_ring_dma); | |
594 | ||
595 | rrpriv->info->cmd_ctrl.entry_size = sizeof(struct cmd); | |
596 | rrpriv->info->cmd_ctrl.entries = CMD_RING_ENTRIES; | |
597 | rrpriv->info->cmd_ctrl.mode = 0; | |
598 | rrpriv->info->cmd_ctrl.pi = 15; | |
599 | ||
600 | for (i = 0; i < CMD_RING_ENTRIES; i++) { | |
601 | writel(0, ®s->CmdRing[i]); | |
602 | } | |
603 | ||
604 | for (i = 0; i < TX_RING_ENTRIES; i++) { | |
605 | rrpriv->tx_ring[i].size = 0; | |
606 | set_rraddr(&rrpriv->tx_ring[i].addr, 0); | |
607 | rrpriv->tx_skbuff[i] = NULL; | |
608 | } | |
609 | rrpriv->info->tx_ctrl.entry_size = sizeof(struct tx_desc); | |
610 | rrpriv->info->tx_ctrl.entries = TX_RING_ENTRIES; | |
611 | rrpriv->info->tx_ctrl.mode = 0; | |
612 | rrpriv->info->tx_ctrl.pi = 0; | |
613 | set_rraddr(&rrpriv->info->tx_ctrl.rngptr, rrpriv->tx_ring_dma); | |
614 | ||
615 | /* | |
616 | * Set dirty_tx before we start receiving interrupts, otherwise | |
617 | * the interrupt handler might think it is supposed to process | |
618 | * tx ints before we are up and running, which may cause a null | |
619 | * pointer access in the int handler. | |
620 | */ | |
621 | rrpriv->tx_full = 0; | |
622 | rrpriv->cur_rx = 0; | |
623 | rrpriv->dirty_rx = rrpriv->dirty_tx = 0; | |
624 | ||
625 | rr_reset(dev); | |
626 | ||
627 | /* Tuning values */ | |
628 | writel(0x5000, ®s->ConRetry); | |
629 | writel(0x100, ®s->ConRetryTmr); | |
630 | writel(0x500000, ®s->ConTmout); | |
631 | writel(0x60, ®s->IntrTmr); | |
632 | writel(0x500000, ®s->TxDataMvTimeout); | |
633 | writel(0x200000, ®s->RxDataMvTimeout); | |
634 | writel(0x80, ®s->WriteDmaThresh); | |
635 | writel(0x80, ®s->ReadDmaThresh); | |
636 | ||
637 | rrpriv->fw_running = 0; | |
638 | wmb(); | |
639 | ||
640 | hostctrl &= ~(HALT_NIC | INVALID_INST_B | PARITY_ERR); | |
641 | writel(hostctrl, ®s->HostCtrl); | |
642 | wmb(); | |
643 | ||
644 | spin_unlock_irqrestore(&rrpriv->lock, flags); | |
645 | ||
646 | for (i = 0; i < RX_RING_ENTRIES; i++) { | |
647 | struct sk_buff *skb; | |
648 | dma_addr_t addr; | |
649 | ||
650 | rrpriv->rx_ring[i].mode = 0; | |
651 | skb = alloc_skb(dev->mtu + HIPPI_HLEN, GFP_ATOMIC); | |
652 | if (!skb) { | |
653 | printk(KERN_WARNING "%s: Unable to allocate memory " | |
654 | "for receive ring - halting NIC\n", dev->name); | |
655 | ecode = -ENOMEM; | |
656 | goto error; | |
657 | } | |
658 | rrpriv->rx_skbuff[i] = skb; | |
659 | addr = pci_map_single(rrpriv->pci_dev, skb->data, | |
660 | dev->mtu + HIPPI_HLEN, PCI_DMA_FROMDEVICE); | |
661 | /* | |
662 | * Sanity test to see if we conflict with the DMA | |
663 | * limitations of the Roadrunner. | |
664 | */ | |
665 | if ((((unsigned long)skb->data) & 0xfff) > ~65320) | |
666 | printk("skb alloc error\n"); | |
667 | ||
668 | set_rraddr(&rrpriv->rx_ring[i].addr, addr); | |
669 | rrpriv->rx_ring[i].size = dev->mtu + HIPPI_HLEN; | |
670 | } | |
671 | ||
672 | rrpriv->rx_ctrl[4].entry_size = sizeof(struct rx_desc); | |
673 | rrpriv->rx_ctrl[4].entries = RX_RING_ENTRIES; | |
674 | rrpriv->rx_ctrl[4].mode = 8; | |
675 | rrpriv->rx_ctrl[4].pi = 0; | |
676 | wmb(); | |
677 | set_rraddr(&rrpriv->rx_ctrl[4].rngptr, rrpriv->rx_ring_dma); | |
678 | ||
679 | udelay(1000); | |
680 | ||
681 | /* | |
682 | * Now start the FirmWare. | |
683 | */ | |
684 | cmd.code = C_START_FW; | |
685 | cmd.ring = 0; | |
686 | cmd.index = 0; | |
687 | ||
688 | rr_issue_cmd(rrpriv, &cmd); | |
689 | ||
690 | /* | |
691 | * Give the FirmWare time to chew on the `get running' command. | |
692 | */ | |
693 | myjif = jiffies + 5 * HZ; | |
694 | while (time_before(jiffies, myjif) && !rrpriv->fw_running) | |
695 | cpu_relax(); | |
696 | ||
697 | netif_start_queue(dev); | |
698 | ||
699 | return ecode; | |
700 | ||
701 | error: | |
702 | /* | |
703 | * We might have gotten here because we are out of memory, | |
704 | * make sure we release everything we allocated before failing | |
705 | */ | |
706 | for (i = 0; i < RX_RING_ENTRIES; i++) { | |
707 | struct sk_buff *skb = rrpriv->rx_skbuff[i]; | |
708 | ||
709 | if (skb) { | |
6aa20a22 JG |
710 | pci_unmap_single(rrpriv->pci_dev, |
711 | rrpriv->rx_ring[i].addr.addrlo, | |
1da177e4 LT |
712 | dev->mtu + HIPPI_HLEN, |
713 | PCI_DMA_FROMDEVICE); | |
714 | rrpriv->rx_ring[i].size = 0; | |
715 | set_rraddr(&rrpriv->rx_ring[i].addr, 0); | |
716 | dev_kfree_skb(skb); | |
717 | rrpriv->rx_skbuff[i] = NULL; | |
718 | } | |
719 | } | |
720 | return ecode; | |
721 | } | |
722 | ||
723 | ||
724 | /* | |
725 | * All events are considered to be slow (RX/TX ints do not generate | |
726 | * events) and are handled here, outside the main interrupt handler, | |
727 | * to reduce the size of the handler. | |
728 | */ | |
729 | static u32 rr_handle_event(struct net_device *dev, u32 prodidx, u32 eidx) | |
730 | { | |
731 | struct rr_private *rrpriv; | |
732 | struct rr_regs __iomem *regs; | |
733 | u32 tmp; | |
734 | ||
735 | rrpriv = netdev_priv(dev); | |
736 | regs = rrpriv->regs; | |
737 | ||
738 | while (prodidx != eidx){ | |
739 | switch (rrpriv->evt_ring[eidx].code){ | |
740 | case E_NIC_UP: | |
741 | tmp = readl(®s->FwRev); | |
742 | printk(KERN_INFO "%s: Firmware revision %i.%i.%i " | |
743 | "up and running\n", dev->name, | |
744 | (tmp >> 16), ((tmp >> 8) & 0xff), (tmp & 0xff)); | |
745 | rrpriv->fw_running = 1; | |
746 | writel(RX_RING_ENTRIES - 1, ®s->IpRxPi); | |
747 | wmb(); | |
748 | break; | |
749 | case E_LINK_ON: | |
750 | printk(KERN_INFO "%s: Optical link ON\n", dev->name); | |
751 | break; | |
752 | case E_LINK_OFF: | |
753 | printk(KERN_INFO "%s: Optical link OFF\n", dev->name); | |
754 | break; | |
755 | case E_RX_IDLE: | |
756 | printk(KERN_WARNING "%s: RX data not moving\n", | |
757 | dev->name); | |
758 | goto drop; | |
759 | case E_WATCHDOG: | |
760 | printk(KERN_INFO "%s: The watchdog is here to see " | |
761 | "us\n", dev->name); | |
762 | break; | |
763 | case E_INTERN_ERR: | |
764 | printk(KERN_ERR "%s: HIPPI Internal NIC error\n", | |
765 | dev->name); | |
6aa20a22 | 766 | writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, |
1da177e4 LT |
767 | ®s->HostCtrl); |
768 | wmb(); | |
769 | break; | |
770 | case E_HOST_ERR: | |
771 | printk(KERN_ERR "%s: Host software error\n", | |
772 | dev->name); | |
6aa20a22 | 773 | writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, |
1da177e4 LT |
774 | ®s->HostCtrl); |
775 | wmb(); | |
776 | break; | |
777 | /* | |
778 | * TX events. | |
779 | */ | |
780 | case E_CON_REJ: | |
781 | printk(KERN_WARNING "%s: Connection rejected\n", | |
782 | dev->name); | |
09f75cd7 | 783 | dev->stats.tx_aborted_errors++; |
1da177e4 LT |
784 | break; |
785 | case E_CON_TMOUT: | |
786 | printk(KERN_WARNING "%s: Connection timeout\n", | |
787 | dev->name); | |
788 | break; | |
789 | case E_DISC_ERR: | |
790 | printk(KERN_WARNING "%s: HIPPI disconnect error\n", | |
791 | dev->name); | |
09f75cd7 | 792 | dev->stats.tx_aborted_errors++; |
1da177e4 LT |
793 | break; |
794 | case E_INT_PRTY: | |
795 | printk(KERN_ERR "%s: HIPPI Internal Parity error\n", | |
796 | dev->name); | |
6aa20a22 | 797 | writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, |
1da177e4 LT |
798 | ®s->HostCtrl); |
799 | wmb(); | |
800 | break; | |
801 | case E_TX_IDLE: | |
802 | printk(KERN_WARNING "%s: Transmitter idle\n", | |
803 | dev->name); | |
804 | break; | |
805 | case E_TX_LINK_DROP: | |
806 | printk(KERN_WARNING "%s: Link lost during transmit\n", | |
807 | dev->name); | |
09f75cd7 | 808 | dev->stats.tx_aborted_errors++; |
6aa20a22 | 809 | writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, |
1da177e4 LT |
810 | ®s->HostCtrl); |
811 | wmb(); | |
812 | break; | |
813 | case E_TX_INV_RNG: | |
814 | printk(KERN_ERR "%s: Invalid send ring block\n", | |
815 | dev->name); | |
6aa20a22 | 816 | writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, |
1da177e4 LT |
817 | ®s->HostCtrl); |
818 | wmb(); | |
819 | break; | |
820 | case E_TX_INV_BUF: | |
821 | printk(KERN_ERR "%s: Invalid send buffer address\n", | |
822 | dev->name); | |
6aa20a22 | 823 | writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, |
1da177e4 LT |
824 | ®s->HostCtrl); |
825 | wmb(); | |
826 | break; | |
827 | case E_TX_INV_DSC: | |
828 | printk(KERN_ERR "%s: Invalid descriptor address\n", | |
829 | dev->name); | |
6aa20a22 | 830 | writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, |
1da177e4 LT |
831 | ®s->HostCtrl); |
832 | wmb(); | |
833 | break; | |
834 | /* | |
835 | * RX events. | |
836 | */ | |
837 | case E_RX_RNG_OUT: | |
838 | printk(KERN_INFO "%s: Receive ring full\n", dev->name); | |
839 | break; | |
840 | ||
841 | case E_RX_PAR_ERR: | |
842 | printk(KERN_WARNING "%s: Receive parity error\n", | |
843 | dev->name); | |
844 | goto drop; | |
845 | case E_RX_LLRC_ERR: | |
846 | printk(KERN_WARNING "%s: Receive LLRC error\n", | |
847 | dev->name); | |
848 | goto drop; | |
849 | case E_PKT_LN_ERR: | |
850 | printk(KERN_WARNING "%s: Receive packet length " | |
851 | "error\n", dev->name); | |
852 | goto drop; | |
853 | case E_DTA_CKSM_ERR: | |
854 | printk(KERN_WARNING "%s: Data checksum error\n", | |
855 | dev->name); | |
856 | goto drop; | |
857 | case E_SHT_BST: | |
858 | printk(KERN_WARNING "%s: Unexpected short burst " | |
859 | "error\n", dev->name); | |
860 | goto drop; | |
861 | case E_STATE_ERR: | |
862 | printk(KERN_WARNING "%s: Recv. state transition" | |
863 | " error\n", dev->name); | |
864 | goto drop; | |
865 | case E_UNEXP_DATA: | |
866 | printk(KERN_WARNING "%s: Unexpected data error\n", | |
867 | dev->name); | |
868 | goto drop; | |
869 | case E_LST_LNK_ERR: | |
870 | printk(KERN_WARNING "%s: Link lost error\n", | |
871 | dev->name); | |
872 | goto drop; | |
873 | case E_FRM_ERR: | |
874 | printk(KERN_WARNING "%s: Framming Error\n", | |
875 | dev->name); | |
876 | goto drop; | |
877 | case E_FLG_SYN_ERR: | |
2450022a | 878 | printk(KERN_WARNING "%s: Flag sync. lost during " |
1da177e4 LT |
879 | "packet\n", dev->name); |
880 | goto drop; | |
881 | case E_RX_INV_BUF: | |
882 | printk(KERN_ERR "%s: Invalid receive buffer " | |
883 | "address\n", dev->name); | |
6aa20a22 | 884 | writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, |
1da177e4 LT |
885 | ®s->HostCtrl); |
886 | wmb(); | |
887 | break; | |
888 | case E_RX_INV_DSC: | |
889 | printk(KERN_ERR "%s: Invalid receive descriptor " | |
890 | "address\n", dev->name); | |
6aa20a22 | 891 | writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, |
1da177e4 LT |
892 | ®s->HostCtrl); |
893 | wmb(); | |
894 | break; | |
895 | case E_RNG_BLK: | |
896 | printk(KERN_ERR "%s: Invalid ring block\n", | |
897 | dev->name); | |
6aa20a22 | 898 | writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, |
1da177e4 LT |
899 | ®s->HostCtrl); |
900 | wmb(); | |
901 | break; | |
902 | drop: | |
903 | /* Label packet to be dropped. | |
904 | * Actual dropping occurs in rx | |
905 | * handling. | |
906 | * | |
907 | * The index of packet we get to drop is | |
908 | * the index of the packet following | |
909 | * the bad packet. -kbf | |
910 | */ | |
911 | { | |
912 | u16 index = rrpriv->evt_ring[eidx].index; | |
913 | index = (index + (RX_RING_ENTRIES - 1)) % | |
914 | RX_RING_ENTRIES; | |
915 | rrpriv->rx_ring[index].mode |= | |
916 | (PACKET_BAD | PACKET_END); | |
917 | } | |
918 | break; | |
919 | default: | |
920 | printk(KERN_WARNING "%s: Unhandled event 0x%02x\n", | |
921 | dev->name, rrpriv->evt_ring[eidx].code); | |
922 | } | |
923 | eidx = (eidx + 1) % EVT_RING_ENTRIES; | |
924 | } | |
925 | ||
926 | rrpriv->info->evt_ctrl.pi = eidx; | |
927 | wmb(); | |
928 | return eidx; | |
929 | } | |
930 | ||
931 | ||
932 | static void rx_int(struct net_device *dev, u32 rxlimit, u32 index) | |
933 | { | |
934 | struct rr_private *rrpriv = netdev_priv(dev); | |
935 | struct rr_regs __iomem *regs = rrpriv->regs; | |
936 | ||
937 | do { | |
938 | struct rx_desc *desc; | |
939 | u32 pkt_len; | |
940 | ||
941 | desc = &(rrpriv->rx_ring[index]); | |
942 | pkt_len = desc->size; | |
943 | #if (DEBUG > 2) | |
944 | printk("index %i, rxlimit %i\n", index, rxlimit); | |
945 | printk("len %x, mode %x\n", pkt_len, desc->mode); | |
946 | #endif | |
947 | if ( (rrpriv->rx_ring[index].mode & PACKET_BAD) == PACKET_BAD){ | |
09f75cd7 | 948 | dev->stats.rx_dropped++; |
1da177e4 LT |
949 | goto defer; |
950 | } | |
951 | ||
952 | if (pkt_len > 0){ | |
953 | struct sk_buff *skb, *rx_skb; | |
954 | ||
955 | rx_skb = rrpriv->rx_skbuff[index]; | |
956 | ||
957 | if (pkt_len < PKT_COPY_THRESHOLD) { | |
958 | skb = alloc_skb(pkt_len, GFP_ATOMIC); | |
959 | if (skb == NULL){ | |
960 | printk(KERN_WARNING "%s: Unable to allocate skb (%i bytes), deferring packet\n", dev->name, pkt_len); | |
09f75cd7 | 961 | dev->stats.rx_dropped++; |
1da177e4 LT |
962 | goto defer; |
963 | } else { | |
964 | pci_dma_sync_single_for_cpu(rrpriv->pci_dev, | |
965 | desc->addr.addrlo, | |
966 | pkt_len, | |
967 | PCI_DMA_FROMDEVICE); | |
968 | ||
969 | memcpy(skb_put(skb, pkt_len), | |
970 | rx_skb->data, pkt_len); | |
971 | ||
972 | pci_dma_sync_single_for_device(rrpriv->pci_dev, | |
973 | desc->addr.addrlo, | |
974 | pkt_len, | |
975 | PCI_DMA_FROMDEVICE); | |
976 | } | |
977 | }else{ | |
978 | struct sk_buff *newskb; | |
979 | ||
980 | newskb = alloc_skb(dev->mtu + HIPPI_HLEN, | |
981 | GFP_ATOMIC); | |
982 | if (newskb){ | |
983 | dma_addr_t addr; | |
984 | ||
6aa20a22 JG |
985 | pci_unmap_single(rrpriv->pci_dev, |
986 | desc->addr.addrlo, dev->mtu + | |
1da177e4 LT |
987 | HIPPI_HLEN, PCI_DMA_FROMDEVICE); |
988 | skb = rx_skb; | |
989 | skb_put(skb, pkt_len); | |
990 | rrpriv->rx_skbuff[index] = newskb; | |
6aa20a22 JG |
991 | addr = pci_map_single(rrpriv->pci_dev, |
992 | newskb->data, | |
993 | dev->mtu + HIPPI_HLEN, | |
1da177e4 LT |
994 | PCI_DMA_FROMDEVICE); |
995 | set_rraddr(&desc->addr, addr); | |
996 | } else { | |
997 | printk("%s: Out of memory, deferring " | |
998 | "packet\n", dev->name); | |
09f75cd7 | 999 | dev->stats.rx_dropped++; |
1da177e4 LT |
1000 | goto defer; |
1001 | } | |
1002 | } | |
1da177e4 LT |
1003 | skb->protocol = hippi_type_trans(skb, dev); |
1004 | ||
1005 | netif_rx(skb); /* send it up */ | |
1006 | ||
09f75cd7 JG |
1007 | dev->stats.rx_packets++; |
1008 | dev->stats.rx_bytes += pkt_len; | |
1da177e4 LT |
1009 | } |
1010 | defer: | |
1011 | desc->mode = 0; | |
1012 | desc->size = dev->mtu + HIPPI_HLEN; | |
1013 | ||
1014 | if ((index & 7) == 7) | |
1015 | writel(index, ®s->IpRxPi); | |
1016 | ||
1017 | index = (index + 1) % RX_RING_ENTRIES; | |
1018 | } while(index != rxlimit); | |
1019 | ||
1020 | rrpriv->cur_rx = index; | |
1021 | wmb(); | |
1022 | } | |
1023 | ||
1024 | ||
7d12e780 | 1025 | static irqreturn_t rr_interrupt(int irq, void *dev_id) |
1da177e4 LT |
1026 | { |
1027 | struct rr_private *rrpriv; | |
1028 | struct rr_regs __iomem *regs; | |
1029 | struct net_device *dev = (struct net_device *)dev_id; | |
1030 | u32 prodidx, rxindex, eidx, txcsmr, rxlimit, txcon; | |
1031 | ||
1032 | rrpriv = netdev_priv(dev); | |
1033 | regs = rrpriv->regs; | |
1034 | ||
1035 | if (!(readl(®s->HostCtrl) & RR_INT)) | |
1036 | return IRQ_NONE; | |
1037 | ||
1038 | spin_lock(&rrpriv->lock); | |
1039 | ||
1040 | prodidx = readl(®s->EvtPrd); | |
1041 | txcsmr = (prodidx >> 8) & 0xff; | |
1042 | rxlimit = (prodidx >> 16) & 0xff; | |
1043 | prodidx &= 0xff; | |
1044 | ||
1045 | #if (DEBUG > 2) | |
1046 | printk("%s: interrupt, prodidx = %i, eidx = %i\n", dev->name, | |
1047 | prodidx, rrpriv->info->evt_ctrl.pi); | |
1048 | #endif | |
1049 | /* | |
1050 | * Order here is important. We must handle events | |
1051 | * before doing anything else in order to catch | |
1052 | * such things as LLRC errors, etc -kbf | |
1053 | */ | |
1054 | ||
1055 | eidx = rrpriv->info->evt_ctrl.pi; | |
1056 | if (prodidx != eidx) | |
1057 | eidx = rr_handle_event(dev, prodidx, eidx); | |
1058 | ||
1059 | rxindex = rrpriv->cur_rx; | |
1060 | if (rxindex != rxlimit) | |
1061 | rx_int(dev, rxlimit, rxindex); | |
1062 | ||
1063 | txcon = rrpriv->dirty_tx; | |
1064 | if (txcsmr != txcon) { | |
1065 | do { | |
1066 | /* Due to occational firmware TX producer/consumer out | |
1067 | * of sync. error need to check entry in ring -kbf | |
1068 | */ | |
1069 | if(rrpriv->tx_skbuff[txcon]){ | |
1070 | struct tx_desc *desc; | |
1071 | struct sk_buff *skb; | |
1072 | ||
1073 | desc = &(rrpriv->tx_ring[txcon]); | |
1074 | skb = rrpriv->tx_skbuff[txcon]; | |
1075 | ||
09f75cd7 JG |
1076 | dev->stats.tx_packets++; |
1077 | dev->stats.tx_bytes += skb->len; | |
1da177e4 LT |
1078 | |
1079 | pci_unmap_single(rrpriv->pci_dev, | |
1080 | desc->addr.addrlo, skb->len, | |
1081 | PCI_DMA_TODEVICE); | |
1082 | dev_kfree_skb_irq(skb); | |
1083 | ||
1084 | rrpriv->tx_skbuff[txcon] = NULL; | |
1085 | desc->size = 0; | |
1086 | set_rraddr(&rrpriv->tx_ring[txcon].addr, 0); | |
1087 | desc->mode = 0; | |
1088 | } | |
1089 | txcon = (txcon + 1) % TX_RING_ENTRIES; | |
1090 | } while (txcsmr != txcon); | |
1091 | wmb(); | |
1092 | ||
1093 | rrpriv->dirty_tx = txcon; | |
1094 | if (rrpriv->tx_full && rr_if_busy(dev) && | |
1095 | (((rrpriv->info->tx_ctrl.pi + 1) % TX_RING_ENTRIES) | |
1096 | != rrpriv->dirty_tx)){ | |
1097 | rrpriv->tx_full = 0; | |
1098 | netif_wake_queue(dev); | |
1099 | } | |
1100 | } | |
1101 | ||
1102 | eidx |= ((txcsmr << 8) | (rxlimit << 16)); | |
1103 | writel(eidx, ®s->EvtCon); | |
1104 | wmb(); | |
1105 | ||
1106 | spin_unlock(&rrpriv->lock); | |
1107 | return IRQ_HANDLED; | |
1108 | } | |
1109 | ||
1110 | static inline void rr_raz_tx(struct rr_private *rrpriv, | |
1111 | struct net_device *dev) | |
1112 | { | |
1113 | int i; | |
1114 | ||
1115 | for (i = 0; i < TX_RING_ENTRIES; i++) { | |
1116 | struct sk_buff *skb = rrpriv->tx_skbuff[i]; | |
1117 | ||
1118 | if (skb) { | |
1119 | struct tx_desc *desc = &(rrpriv->tx_ring[i]); | |
1120 | ||
1121 | pci_unmap_single(rrpriv->pci_dev, desc->addr.addrlo, | |
1122 | skb->len, PCI_DMA_TODEVICE); | |
1123 | desc->size = 0; | |
1124 | set_rraddr(&desc->addr, 0); | |
1125 | dev_kfree_skb(skb); | |
1126 | rrpriv->tx_skbuff[i] = NULL; | |
1127 | } | |
1128 | } | |
1129 | } | |
1130 | ||
1131 | ||
1132 | static inline void rr_raz_rx(struct rr_private *rrpriv, | |
1133 | struct net_device *dev) | |
1134 | { | |
1135 | int i; | |
1136 | ||
1137 | for (i = 0; i < RX_RING_ENTRIES; i++) { | |
1138 | struct sk_buff *skb = rrpriv->rx_skbuff[i]; | |
1139 | ||
1140 | if (skb) { | |
1141 | struct rx_desc *desc = &(rrpriv->rx_ring[i]); | |
1142 | ||
1143 | pci_unmap_single(rrpriv->pci_dev, desc->addr.addrlo, | |
1144 | dev->mtu + HIPPI_HLEN, PCI_DMA_FROMDEVICE); | |
1145 | desc->size = 0; | |
1146 | set_rraddr(&desc->addr, 0); | |
1147 | dev_kfree_skb(skb); | |
1148 | rrpriv->rx_skbuff[i] = NULL; | |
1149 | } | |
1150 | } | |
1151 | } | |
1152 | ||
1153 | static void rr_timer(unsigned long data) | |
1154 | { | |
1155 | struct net_device *dev = (struct net_device *)data; | |
1156 | struct rr_private *rrpriv = netdev_priv(dev); | |
1157 | struct rr_regs __iomem *regs = rrpriv->regs; | |
1158 | unsigned long flags; | |
1159 | ||
1160 | if (readl(®s->HostCtrl) & NIC_HALTED){ | |
1161 | printk("%s: Restarting nic\n", dev->name); | |
1162 | memset(rrpriv->rx_ctrl, 0, 256 * sizeof(struct ring_ctrl)); | |
1163 | memset(rrpriv->info, 0, sizeof(struct rr_info)); | |
1164 | wmb(); | |
1165 | ||
1166 | rr_raz_tx(rrpriv, dev); | |
1167 | rr_raz_rx(rrpriv, dev); | |
1168 | ||
1169 | if (rr_init1(dev)) { | |
1170 | spin_lock_irqsave(&rrpriv->lock, flags); | |
6aa20a22 | 1171 | writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, |
1da177e4 LT |
1172 | ®s->HostCtrl); |
1173 | spin_unlock_irqrestore(&rrpriv->lock, flags); | |
1174 | } | |
1175 | } | |
1176 | rrpriv->timer.expires = RUN_AT(5*HZ); | |
1177 | add_timer(&rrpriv->timer); | |
1178 | } | |
1179 | ||
1180 | ||
1181 | static int rr_open(struct net_device *dev) | |
1182 | { | |
1183 | struct rr_private *rrpriv = netdev_priv(dev); | |
1184 | struct pci_dev *pdev = rrpriv->pci_dev; | |
1185 | struct rr_regs __iomem *regs; | |
1186 | int ecode = 0; | |
1187 | unsigned long flags; | |
1188 | dma_addr_t dma_addr; | |
1189 | ||
1190 | regs = rrpriv->regs; | |
1191 | ||
1192 | if (rrpriv->fw_rev < 0x00020000) { | |
1193 | printk(KERN_WARNING "%s: trying to configure device with " | |
1194 | "obsolete firmware\n", dev->name); | |
1195 | ecode = -EBUSY; | |
1196 | goto error; | |
1197 | } | |
1198 | ||
1199 | rrpriv->rx_ctrl = pci_alloc_consistent(pdev, | |
1200 | 256 * sizeof(struct ring_ctrl), | |
1201 | &dma_addr); | |
1202 | if (!rrpriv->rx_ctrl) { | |
1203 | ecode = -ENOMEM; | |
1204 | goto error; | |
1205 | } | |
1206 | rrpriv->rx_ctrl_dma = dma_addr; | |
1207 | memset(rrpriv->rx_ctrl, 0, 256*sizeof(struct ring_ctrl)); | |
1208 | ||
1209 | rrpriv->info = pci_alloc_consistent(pdev, sizeof(struct rr_info), | |
1210 | &dma_addr); | |
1211 | if (!rrpriv->info) { | |
1212 | ecode = -ENOMEM; | |
1213 | goto error; | |
1214 | } | |
1215 | rrpriv->info_dma = dma_addr; | |
1216 | memset(rrpriv->info, 0, sizeof(struct rr_info)); | |
1217 | wmb(); | |
1218 | ||
1219 | spin_lock_irqsave(&rrpriv->lock, flags); | |
1220 | writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, ®s->HostCtrl); | |
1221 | readl(®s->HostCtrl); | |
1222 | spin_unlock_irqrestore(&rrpriv->lock, flags); | |
1223 | ||
0193fc5e | 1224 | if (request_irq(pdev->irq, rr_interrupt, IRQF_SHARED, dev->name, dev)) { |
1da177e4 | 1225 | printk(KERN_WARNING "%s: Requested IRQ %d is busy\n", |
0193fc5e | 1226 | dev->name, pdev->irq); |
1da177e4 LT |
1227 | ecode = -EAGAIN; |
1228 | goto error; | |
1229 | } | |
1230 | ||
1231 | if ((ecode = rr_init1(dev))) | |
1232 | goto error; | |
1233 | ||
1234 | /* Set the timer to switch to check for link beat and perhaps switch | |
1235 | to an alternate media type. */ | |
1236 | init_timer(&rrpriv->timer); | |
1237 | rrpriv->timer.expires = RUN_AT(5*HZ); /* 5 sec. watchdog */ | |
1238 | rrpriv->timer.data = (unsigned long)dev; | |
c061b18d | 1239 | rrpriv->timer.function = rr_timer; /* timer handler */ |
1da177e4 LT |
1240 | add_timer(&rrpriv->timer); |
1241 | ||
1242 | netif_start_queue(dev); | |
1243 | ||
1244 | return ecode; | |
1245 | ||
1246 | error: | |
1247 | spin_lock_irqsave(&rrpriv->lock, flags); | |
1248 | writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, ®s->HostCtrl); | |
1249 | spin_unlock_irqrestore(&rrpriv->lock, flags); | |
1250 | ||
1251 | if (rrpriv->info) { | |
1252 | pci_free_consistent(pdev, sizeof(struct rr_info), rrpriv->info, | |
1253 | rrpriv->info_dma); | |
1254 | rrpriv->info = NULL; | |
1255 | } | |
1256 | if (rrpriv->rx_ctrl) { | |
1257 | pci_free_consistent(pdev, sizeof(struct ring_ctrl), | |
1258 | rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma); | |
1259 | rrpriv->rx_ctrl = NULL; | |
1260 | } | |
1261 | ||
1262 | netif_stop_queue(dev); | |
6aa20a22 | 1263 | |
1da177e4 LT |
1264 | return ecode; |
1265 | } | |
1266 | ||
1267 | ||
1268 | static void rr_dump(struct net_device *dev) | |
1269 | { | |
1270 | struct rr_private *rrpriv; | |
1271 | struct rr_regs __iomem *regs; | |
1272 | u32 index, cons; | |
1273 | short i; | |
1274 | int len; | |
1275 | ||
1276 | rrpriv = netdev_priv(dev); | |
1277 | regs = rrpriv->regs; | |
1278 | ||
1279 | printk("%s: dumping NIC TX rings\n", dev->name); | |
1280 | ||
1281 | printk("RxPrd %08x, TxPrd %02x, EvtPrd %08x, TxPi %02x, TxCtrlPi %02x\n", | |
1282 | readl(®s->RxPrd), readl(®s->TxPrd), | |
1283 | readl(®s->EvtPrd), readl(®s->TxPi), | |
1284 | rrpriv->info->tx_ctrl.pi); | |
1285 | ||
1286 | printk("Error code 0x%x\n", readl(®s->Fail1)); | |
1287 | ||
2585e7e5 | 1288 | index = (((readl(®s->EvtPrd) >> 8) & 0xff) - 1) % TX_RING_ENTRIES; |
1da177e4 LT |
1289 | cons = rrpriv->dirty_tx; |
1290 | printk("TX ring index %i, TX consumer %i\n", | |
1291 | index, cons); | |
1292 | ||
1293 | if (rrpriv->tx_skbuff[index]){ | |
1294 | len = min_t(int, 0x80, rrpriv->tx_skbuff[index]->len); | |
1295 | printk("skbuff for index %i is valid - dumping data (0x%x bytes - DMA len 0x%x)\n", index, len, rrpriv->tx_ring[index].size); | |
1296 | for (i = 0; i < len; i++){ | |
1297 | if (!(i & 7)) | |
1298 | printk("\n"); | |
1299 | printk("%02x ", (unsigned char) rrpriv->tx_skbuff[index]->data[i]); | |
1300 | } | |
1301 | printk("\n"); | |
1302 | } | |
1303 | ||
1304 | if (rrpriv->tx_skbuff[cons]){ | |
1305 | len = min_t(int, 0x80, rrpriv->tx_skbuff[cons]->len); | |
1306 | printk("skbuff for cons %i is valid - dumping data (0x%x bytes - skbuff len 0x%x)\n", cons, len, rrpriv->tx_skbuff[cons]->len); | |
1307 | printk("mode 0x%x, size 0x%x,\n phys %08Lx, skbuff-addr %08lx, truesize 0x%x\n", | |
1308 | rrpriv->tx_ring[cons].mode, | |
1309 | rrpriv->tx_ring[cons].size, | |
1310 | (unsigned long long) rrpriv->tx_ring[cons].addr.addrlo, | |
1311 | (unsigned long)rrpriv->tx_skbuff[cons]->data, | |
1312 | (unsigned int)rrpriv->tx_skbuff[cons]->truesize); | |
1313 | for (i = 0; i < len; i++){ | |
1314 | if (!(i & 7)) | |
1315 | printk("\n"); | |
1316 | printk("%02x ", (unsigned char)rrpriv->tx_ring[cons].size); | |
1317 | } | |
1318 | printk("\n"); | |
1319 | } | |
1320 | ||
1321 | printk("dumping TX ring info:\n"); | |
1322 | for (i = 0; i < TX_RING_ENTRIES; i++) | |
1323 | printk("mode 0x%x, size 0x%x, phys-addr %08Lx\n", | |
1324 | rrpriv->tx_ring[i].mode, | |
1325 | rrpriv->tx_ring[i].size, | |
1326 | (unsigned long long) rrpriv->tx_ring[i].addr.addrlo); | |
1327 | ||
1328 | } | |
1329 | ||
1330 | ||
1331 | static int rr_close(struct net_device *dev) | |
1332 | { | |
0193fc5e FR |
1333 | struct rr_private *rrpriv = netdev_priv(dev); |
1334 | struct rr_regs __iomem *regs = rrpriv->regs; | |
1335 | struct pci_dev *pdev = rrpriv->pci_dev; | |
1da177e4 LT |
1336 | unsigned long flags; |
1337 | u32 tmp; | |
1338 | short i; | |
1339 | ||
1340 | netif_stop_queue(dev); | |
1341 | ||
1da177e4 LT |
1342 | |
1343 | /* | |
1344 | * Lock to make sure we are not cleaning up while another CPU | |
1345 | * is handling interrupts. | |
1346 | */ | |
1347 | spin_lock_irqsave(&rrpriv->lock, flags); | |
1348 | ||
1349 | tmp = readl(®s->HostCtrl); | |
1350 | if (tmp & NIC_HALTED){ | |
1351 | printk("%s: NIC already halted\n", dev->name); | |
1352 | rr_dump(dev); | |
1353 | }else{ | |
1354 | tmp |= HALT_NIC | RR_CLEAR_INT; | |
1355 | writel(tmp, ®s->HostCtrl); | |
1356 | readl(®s->HostCtrl); | |
1357 | } | |
1358 | ||
1359 | rrpriv->fw_running = 0; | |
1360 | ||
1361 | del_timer_sync(&rrpriv->timer); | |
1362 | ||
1363 | writel(0, ®s->TxPi); | |
1364 | writel(0, ®s->IpRxPi); | |
1365 | ||
1366 | writel(0, ®s->EvtCon); | |
1367 | writel(0, ®s->EvtPrd); | |
1368 | ||
1369 | for (i = 0; i < CMD_RING_ENTRIES; i++) | |
1370 | writel(0, ®s->CmdRing[i]); | |
1371 | ||
1372 | rrpriv->info->tx_ctrl.entries = 0; | |
1373 | rrpriv->info->cmd_ctrl.pi = 0; | |
1374 | rrpriv->info->evt_ctrl.pi = 0; | |
1375 | rrpriv->rx_ctrl[4].entries = 0; | |
1376 | ||
1377 | rr_raz_tx(rrpriv, dev); | |
1378 | rr_raz_rx(rrpriv, dev); | |
1379 | ||
0193fc5e | 1380 | pci_free_consistent(pdev, 256 * sizeof(struct ring_ctrl), |
1da177e4 LT |
1381 | rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma); |
1382 | rrpriv->rx_ctrl = NULL; | |
1383 | ||
0193fc5e FR |
1384 | pci_free_consistent(pdev, sizeof(struct rr_info), rrpriv->info, |
1385 | rrpriv->info_dma); | |
1da177e4 LT |
1386 | rrpriv->info = NULL; |
1387 | ||
0193fc5e | 1388 | free_irq(pdev->irq, dev); |
1da177e4 LT |
1389 | spin_unlock_irqrestore(&rrpriv->lock, flags); |
1390 | ||
1391 | return 0; | |
1392 | } | |
1393 | ||
1394 | ||
61357325 SH |
1395 | static netdev_tx_t rr_start_xmit(struct sk_buff *skb, |
1396 | struct net_device *dev) | |
1da177e4 LT |
1397 | { |
1398 | struct rr_private *rrpriv = netdev_priv(dev); | |
1399 | struct rr_regs __iomem *regs = rrpriv->regs; | |
6f1cf165 | 1400 | struct hippi_cb *hcb = (struct hippi_cb *) skb->cb; |
1da177e4 LT |
1401 | struct ring_ctrl *txctrl; |
1402 | unsigned long flags; | |
1403 | u32 index, len = skb->len; | |
1404 | u32 *ifield; | |
1405 | struct sk_buff *new_skb; | |
1406 | ||
1407 | if (readl(®s->Mode) & FATAL_ERR) | |
1408 | printk("error codes Fail1 %02x, Fail2 %02x\n", | |
1409 | readl(®s->Fail1), readl(®s->Fail2)); | |
1410 | ||
1411 | /* | |
1412 | * We probably need to deal with tbusy here to prevent overruns. | |
1413 | */ | |
1414 | ||
1415 | if (skb_headroom(skb) < 8){ | |
1416 | printk("incoming skb too small - reallocating\n"); | |
1417 | if (!(new_skb = dev_alloc_skb(len + 8))) { | |
1418 | dev_kfree_skb(skb); | |
1419 | netif_wake_queue(dev); | |
3790c8cd | 1420 | return NETDEV_TX_OK; |
1da177e4 LT |
1421 | } |
1422 | skb_reserve(new_skb, 8); | |
1423 | skb_put(new_skb, len); | |
d626f62b | 1424 | skb_copy_from_linear_data(skb, new_skb->data, len); |
1da177e4 LT |
1425 | dev_kfree_skb(skb); |
1426 | skb = new_skb; | |
1427 | } | |
1428 | ||
1429 | ifield = (u32 *)skb_push(skb, 8); | |
1430 | ||
1431 | ifield[0] = 0; | |
6f1cf165 | 1432 | ifield[1] = hcb->ifield; |
1da177e4 LT |
1433 | |
1434 | /* | |
1435 | * We don't need the lock before we are actually going to start | |
1436 | * fiddling with the control blocks. | |
1437 | */ | |
1438 | spin_lock_irqsave(&rrpriv->lock, flags); | |
1439 | ||
1440 | txctrl = &rrpriv->info->tx_ctrl; | |
1441 | ||
1442 | index = txctrl->pi; | |
1443 | ||
1444 | rrpriv->tx_skbuff[index] = skb; | |
1445 | set_rraddr(&rrpriv->tx_ring[index].addr, pci_map_single( | |
1446 | rrpriv->pci_dev, skb->data, len + 8, PCI_DMA_TODEVICE)); | |
1447 | rrpriv->tx_ring[index].size = len + 8; /* include IFIELD */ | |
1448 | rrpriv->tx_ring[index].mode = PACKET_START | PACKET_END; | |
1449 | txctrl->pi = (index + 1) % TX_RING_ENTRIES; | |
1450 | wmb(); | |
1451 | writel(txctrl->pi, ®s->TxPi); | |
1452 | ||
1453 | if (txctrl->pi == rrpriv->dirty_tx){ | |
1454 | rrpriv->tx_full = 1; | |
1455 | netif_stop_queue(dev); | |
1456 | } | |
1457 | ||
1458 | spin_unlock_irqrestore(&rrpriv->lock, flags); | |
1459 | ||
6ed10654 | 1460 | return NETDEV_TX_OK; |
1da177e4 LT |
1461 | } |
1462 | ||
1463 | ||
1da177e4 LT |
1464 | /* |
1465 | * Read the firmware out of the EEPROM and put it into the SRAM | |
1466 | * (or from user space - later) | |
1467 | * | |
1468 | * This operation requires the NIC to be halted and is performed with | |
1469 | * interrupts disabled and with the spinlock hold. | |
1470 | */ | |
1471 | static int rr_load_firmware(struct net_device *dev) | |
1472 | { | |
1473 | struct rr_private *rrpriv; | |
1474 | struct rr_regs __iomem *regs; | |
cf962378 | 1475 | size_t eptr, segptr; |
1da177e4 LT |
1476 | int i, j; |
1477 | u32 localctrl, sptr, len, tmp; | |
1478 | u32 p2len, p2size, nr_seg, revision, io, sram_size; | |
1da177e4 LT |
1479 | |
1480 | rrpriv = netdev_priv(dev); | |
1481 | regs = rrpriv->regs; | |
1482 | ||
1483 | if (dev->flags & IFF_UP) | |
1484 | return -EBUSY; | |
1485 | ||
1486 | if (!(readl(®s->HostCtrl) & NIC_HALTED)){ | |
6aa20a22 | 1487 | printk("%s: Trying to load firmware to a running NIC.\n", |
1da177e4 LT |
1488 | dev->name); |
1489 | return -EBUSY; | |
1490 | } | |
1491 | ||
1492 | localctrl = readl(®s->LocalCtrl); | |
1493 | writel(0, ®s->LocalCtrl); | |
1494 | ||
1495 | writel(0, ®s->EvtPrd); | |
1496 | writel(0, ®s->RxPrd); | |
1497 | writel(0, ®s->TxPrd); | |
1498 | ||
1499 | /* | |
1500 | * First wipe the entire SRAM, otherwise we might run into all | |
1501 | * kinds of trouble ... sigh, this took almost all afternoon | |
1502 | * to track down ;-( | |
1503 | */ | |
1504 | io = readl(®s->ExtIo); | |
1505 | writel(0, ®s->ExtIo); | |
cf962378 | 1506 | sram_size = rr_read_eeprom_word(rrpriv, 8); |
1da177e4 LT |
1507 | |
1508 | for (i = 200; i < sram_size / 4; i++){ | |
1509 | writel(i * 4, ®s->WinBase); | |
1510 | mb(); | |
1511 | writel(0, ®s->WinData); | |
1512 | mb(); | |
1513 | } | |
1514 | writel(io, ®s->ExtIo); | |
1515 | mb(); | |
1516 | ||
cf962378 AV |
1517 | eptr = rr_read_eeprom_word(rrpriv, |
1518 | offsetof(struct eeprom, rncd_info.AddrRunCodeSegs)); | |
1da177e4 LT |
1519 | eptr = ((eptr & 0x1fffff) >> 3); |
1520 | ||
cf962378 | 1521 | p2len = rr_read_eeprom_word(rrpriv, 0x83*4); |
1da177e4 | 1522 | p2len = (p2len << 2); |
cf962378 | 1523 | p2size = rr_read_eeprom_word(rrpriv, 0x84*4); |
1da177e4 LT |
1524 | p2size = ((p2size & 0x1fffff) >> 3); |
1525 | ||
1526 | if ((eptr < p2size) || (eptr > (p2size + p2len))){ | |
1527 | printk("%s: eptr is invalid\n", dev->name); | |
1528 | goto out; | |
1529 | } | |
1530 | ||
cf962378 AV |
1531 | revision = rr_read_eeprom_word(rrpriv, |
1532 | offsetof(struct eeprom, manf.HeaderFmt)); | |
1da177e4 LT |
1533 | |
1534 | if (revision != 1){ | |
1535 | printk("%s: invalid firmware format (%i)\n", | |
1536 | dev->name, revision); | |
1537 | goto out; | |
1538 | } | |
1539 | ||
cf962378 | 1540 | nr_seg = rr_read_eeprom_word(rrpriv, eptr); |
1da177e4 LT |
1541 | eptr +=4; |
1542 | #if (DEBUG > 1) | |
1543 | printk("%s: nr_seg %i\n", dev->name, nr_seg); | |
1544 | #endif | |
1545 | ||
1546 | for (i = 0; i < nr_seg; i++){ | |
cf962378 | 1547 | sptr = rr_read_eeprom_word(rrpriv, eptr); |
1da177e4 | 1548 | eptr += 4; |
cf962378 | 1549 | len = rr_read_eeprom_word(rrpriv, eptr); |
1da177e4 | 1550 | eptr += 4; |
cf962378 | 1551 | segptr = rr_read_eeprom_word(rrpriv, eptr); |
1da177e4 LT |
1552 | segptr = ((segptr & 0x1fffff) >> 3); |
1553 | eptr += 4; | |
1554 | #if (DEBUG > 1) | |
1555 | printk("%s: segment %i, sram address %06x, length %04x, segptr %06x\n", | |
1556 | dev->name, i, sptr, len, segptr); | |
1557 | #endif | |
1558 | for (j = 0; j < len; j++){ | |
cf962378 | 1559 | tmp = rr_read_eeprom_word(rrpriv, segptr); |
1da177e4 LT |
1560 | writel(sptr, ®s->WinBase); |
1561 | mb(); | |
1562 | writel(tmp, ®s->WinData); | |
1563 | mb(); | |
1564 | segptr += 4; | |
1565 | sptr += 4; | |
1566 | } | |
1567 | } | |
1568 | ||
1569 | out: | |
1570 | writel(localctrl, ®s->LocalCtrl); | |
1571 | mb(); | |
1572 | return 0; | |
1573 | } | |
1574 | ||
1575 | ||
1576 | static int rr_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
1577 | { | |
1578 | struct rr_private *rrpriv; | |
1579 | unsigned char *image, *oldimage; | |
1580 | unsigned long flags; | |
1581 | unsigned int i; | |
1582 | int error = -EOPNOTSUPP; | |
1583 | ||
1584 | rrpriv = netdev_priv(dev); | |
1585 | ||
1586 | switch(cmd){ | |
1587 | case SIOCRRGFW: | |
1588 | if (!capable(CAP_SYS_RAWIO)){ | |
1589 | return -EPERM; | |
1590 | } | |
1591 | ||
1592 | image = kmalloc(EEPROM_WORDS * sizeof(u32), GFP_KERNEL); | |
e404decb | 1593 | if (!image) |
1da177e4 | 1594 | return -ENOMEM; |
1da177e4 LT |
1595 | |
1596 | if (rrpriv->fw_running){ | |
1597 | printk("%s: Firmware already running\n", dev->name); | |
1598 | error = -EPERM; | |
1599 | goto gf_out; | |
1600 | } | |
1601 | ||
1602 | spin_lock_irqsave(&rrpriv->lock, flags); | |
1603 | i = rr_read_eeprom(rrpriv, 0, image, EEPROM_BYTES); | |
1604 | spin_unlock_irqrestore(&rrpriv->lock, flags); | |
1605 | if (i != EEPROM_BYTES){ | |
1606 | printk(KERN_ERR "%s: Error reading EEPROM\n", | |
1607 | dev->name); | |
1608 | error = -EFAULT; | |
1609 | goto gf_out; | |
1610 | } | |
1611 | error = copy_to_user(rq->ifr_data, image, EEPROM_BYTES); | |
1612 | if (error) | |
1613 | error = -EFAULT; | |
1614 | gf_out: | |
1615 | kfree(image); | |
1616 | return error; | |
6aa20a22 | 1617 | |
1da177e4 LT |
1618 | case SIOCRRPFW: |
1619 | if (!capable(CAP_SYS_RAWIO)){ | |
1620 | return -EPERM; | |
1621 | } | |
1622 | ||
1623 | image = kmalloc(EEPROM_WORDS * sizeof(u32), GFP_KERNEL); | |
1624 | oldimage = kmalloc(EEPROM_WORDS * sizeof(u32), GFP_KERNEL); | |
1625 | if (!image || !oldimage) { | |
1da177e4 LT |
1626 | error = -ENOMEM; |
1627 | goto wf_out; | |
1628 | } | |
1629 | ||
1630 | error = copy_from_user(image, rq->ifr_data, EEPROM_BYTES); | |
1631 | if (error) { | |
1632 | error = -EFAULT; | |
1633 | goto wf_out; | |
1634 | } | |
1635 | ||
1636 | if (rrpriv->fw_running){ | |
1637 | printk("%s: Firmware already running\n", dev->name); | |
1638 | error = -EPERM; | |
1639 | goto wf_out; | |
1640 | } | |
1641 | ||
1642 | printk("%s: Updating EEPROM firmware\n", dev->name); | |
1643 | ||
1644 | spin_lock_irqsave(&rrpriv->lock, flags); | |
1645 | error = write_eeprom(rrpriv, 0, image, EEPROM_BYTES); | |
1646 | if (error) | |
1647 | printk(KERN_ERR "%s: Error writing EEPROM\n", | |
1648 | dev->name); | |
1649 | ||
1650 | i = rr_read_eeprom(rrpriv, 0, oldimage, EEPROM_BYTES); | |
1651 | spin_unlock_irqrestore(&rrpriv->lock, flags); | |
1652 | ||
1653 | if (i != EEPROM_BYTES) | |
1654 | printk(KERN_ERR "%s: Error reading back EEPROM " | |
1655 | "image\n", dev->name); | |
1656 | ||
1657 | error = memcmp(image, oldimage, EEPROM_BYTES); | |
1658 | if (error){ | |
1659 | printk(KERN_ERR "%s: Error verifying EEPROM image\n", | |
1660 | dev->name); | |
1661 | error = -EFAULT; | |
1662 | } | |
1663 | wf_out: | |
b4558ea9 JJ |
1664 | kfree(oldimage); |
1665 | kfree(image); | |
1da177e4 | 1666 | return error; |
6aa20a22 | 1667 | |
1da177e4 LT |
1668 | case SIOCRRID: |
1669 | return put_user(0x52523032, (int __user *)rq->ifr_data); | |
1670 | default: | |
1671 | return error; | |
1672 | } | |
1673 | } | |
1674 | ||
a3aa1884 | 1675 | static DEFINE_PCI_DEVICE_TABLE(rr_pci_tbl) = { |
1da177e4 LT |
1676 | { PCI_VENDOR_ID_ESSENTIAL, PCI_DEVICE_ID_ESSENTIAL_ROADRUNNER, |
1677 | PCI_ANY_ID, PCI_ANY_ID, }, | |
1678 | { 0,} | |
1679 | }; | |
1680 | MODULE_DEVICE_TABLE(pci, rr_pci_tbl); | |
1681 | ||
1682 | static struct pci_driver rr_driver = { | |
1683 | .name = "rrunner", | |
1684 | .id_table = rr_pci_tbl, | |
1685 | .probe = rr_init_one, | |
6e945491 | 1686 | .remove = rr_remove_one, |
1da177e4 LT |
1687 | }; |
1688 | ||
1689 | static int __init rr_init_module(void) | |
1690 | { | |
29917620 | 1691 | return pci_register_driver(&rr_driver); |
1da177e4 LT |
1692 | } |
1693 | ||
1694 | static void __exit rr_cleanup_module(void) | |
1695 | { | |
1696 | pci_unregister_driver(&rr_driver); | |
1697 | } | |
1698 | ||
1699 | module_init(rr_init_module); | |
1700 | module_exit(rr_cleanup_module); |