Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family | |
3 | * of PCI-SCSI IO processors. | |
4 | * | |
5 | * Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr> | |
6 | * Copyright (c) 2003-2005 Matthew Wilcox <matthew@wil.cx> | |
7 | * | |
8 | * This driver is derived from the Linux sym53c8xx driver. | |
9 | * Copyright (C) 1998-2000 Gerard Roudier | |
10 | * | |
11 | * The sym53c8xx driver is derived from the ncr53c8xx driver that had been | |
12 | * a port of the FreeBSD ncr driver to Linux-1.2.13. | |
13 | * | |
14 | * The original ncr driver has been written for 386bsd and FreeBSD by | |
15 | * Wolfgang Stanglmeier <wolf@cologne.de> | |
16 | * Stefan Esser <se@mi.Uni-Koeln.de> | |
17 | * Copyright (C) 1994 Wolfgang Stanglmeier | |
18 | * | |
19 | * Other major contributions: | |
20 | * | |
21 | * NVRAM detection and reading. | |
22 | * Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk> | |
23 | * | |
24 | *----------------------------------------------------------------------------- | |
25 | * | |
26 | * This program is free software; you can redistribute it and/or modify | |
27 | * it under the terms of the GNU General Public License as published by | |
28 | * the Free Software Foundation; either version 2 of the License, or | |
29 | * (at your option) any later version. | |
30 | * | |
31 | * This program is distributed in the hope that it will be useful, | |
32 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
33 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
34 | * GNU General Public License for more details. | |
35 | * | |
36 | * You should have received a copy of the GNU General Public License | |
37 | * along with this program; if not, write to the Free Software | |
38 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
39 | */ | |
40 | #include <linux/ctype.h> | |
41 | #include <linux/init.h> | |
1da177e4 LT |
42 | #include <linux/module.h> |
43 | #include <linux/moduleparam.h> | |
44 | #include <linux/spinlock.h> | |
45 | #include <scsi/scsi.h> | |
46 | #include <scsi/scsi_tcq.h> | |
47 | #include <scsi/scsi_device.h> | |
48 | #include <scsi/scsi_transport.h> | |
49 | ||
50 | #include "sym_glue.h" | |
51 | #include "sym_nvram.h" | |
52 | ||
53 | #define NAME53C "sym53c" | |
54 | #define NAME53C8XX "sym53c8xx" | |
55 | ||
1da177e4 LT |
56 | struct sym_driver_setup sym_driver_setup = SYM_LINUX_DRIVER_SETUP; |
57 | unsigned int sym_debug_flags = 0; | |
58 | ||
59 | static char *excl_string; | |
60 | static char *safe_string; | |
61 | module_param_named(cmd_per_lun, sym_driver_setup.max_tag, ushort, 0); | |
1da177e4 LT |
62 | module_param_named(burst, sym_driver_setup.burst_order, byte, 0); |
63 | module_param_named(led, sym_driver_setup.scsi_led, byte, 0); | |
64 | module_param_named(diff, sym_driver_setup.scsi_diff, byte, 0); | |
65 | module_param_named(irqm, sym_driver_setup.irq_mode, byte, 0); | |
66 | module_param_named(buschk, sym_driver_setup.scsi_bus_check, byte, 0); | |
67 | module_param_named(hostid, sym_driver_setup.host_id, byte, 0); | |
68 | module_param_named(verb, sym_driver_setup.verbose, byte, 0); | |
69 | module_param_named(debug, sym_debug_flags, uint, 0); | |
70 | module_param_named(settle, sym_driver_setup.settle_delay, byte, 0); | |
71 | module_param_named(nvram, sym_driver_setup.use_nvram, byte, 0); | |
72 | module_param_named(excl, excl_string, charp, 0); | |
73 | module_param_named(safe, safe_string, charp, 0); | |
74 | ||
75 | MODULE_PARM_DESC(cmd_per_lun, "The maximum number of tags to use by default"); | |
1da177e4 LT |
76 | MODULE_PARM_DESC(burst, "Maximum burst. 0 to disable, 255 to read from registers"); |
77 | MODULE_PARM_DESC(led, "Set to 1 to enable LED support"); | |
78 | MODULE_PARM_DESC(diff, "0 for no differential mode, 1 for BIOS, 2 for always, 3 for not GPIO3"); | |
79 | MODULE_PARM_DESC(irqm, "0 for open drain, 1 to leave alone, 2 for totem pole"); | |
80 | MODULE_PARM_DESC(buschk, "0 to not check, 1 for detach on error, 2 for warn on error"); | |
81 | MODULE_PARM_DESC(hostid, "The SCSI ID to use for the host adapters"); | |
82 | MODULE_PARM_DESC(verb, "0 for minimal verbosity, 1 for normal, 2 for excessive"); | |
83 | MODULE_PARM_DESC(debug, "Set bits to enable debugging"); | |
84 | MODULE_PARM_DESC(settle, "Settle delay in seconds. Default 3"); | |
85 | MODULE_PARM_DESC(nvram, "Option currently not used"); | |
86 | MODULE_PARM_DESC(excl, "List ioport addresses here to prevent controllers from being attached"); | |
87 | MODULE_PARM_DESC(safe, "Set other settings to a \"safe mode\""); | |
88 | ||
89 | MODULE_LICENSE("GPL"); | |
90 | MODULE_VERSION(SYM_VERSION); | |
91 | MODULE_AUTHOR("Matthew Wilcox <matthew@wil.cx>"); | |
92 | MODULE_DESCRIPTION("NCR, Symbios and LSI 8xx and 1010 PCI SCSI adapters"); | |
93 | ||
94 | static void sym2_setup_params(void) | |
95 | { | |
96 | char *p = excl_string; | |
97 | int xi = 0; | |
98 | ||
99 | while (p && (xi < 8)) { | |
100 | char *next_p; | |
101 | int val = (int) simple_strtoul(p, &next_p, 0); | |
102 | sym_driver_setup.excludes[xi++] = val; | |
103 | p = next_p; | |
104 | } | |
105 | ||
106 | if (safe_string) { | |
107 | if (*safe_string == 'y') { | |
108 | sym_driver_setup.max_tag = 0; | |
109 | sym_driver_setup.burst_order = 0; | |
110 | sym_driver_setup.scsi_led = 0; | |
111 | sym_driver_setup.scsi_diff = 1; | |
112 | sym_driver_setup.irq_mode = 0; | |
113 | sym_driver_setup.scsi_bus_check = 2; | |
114 | sym_driver_setup.host_id = 7; | |
115 | sym_driver_setup.verbose = 2; | |
116 | sym_driver_setup.settle_delay = 10; | |
117 | sym_driver_setup.use_nvram = 1; | |
118 | } else if (*safe_string != 'n') { | |
119 | printk(KERN_WARNING NAME53C8XX "Ignoring parameter %s" | |
120 | " passed to safe option", safe_string); | |
121 | } | |
122 | } | |
123 | } | |
124 | ||
1da177e4 LT |
125 | static struct scsi_transport_template *sym2_transport_template = NULL; |
126 | ||
1da177e4 LT |
127 | /* |
128 | * Driver private area in the SCSI command structure. | |
129 | */ | |
130 | struct sym_ucmd { /* Override the SCSI pointer structure */ | |
d68cd759 | 131 | struct completion *eh_done; /* SCSI error handling */ |
1da177e4 LT |
132 | }; |
133 | ||
134 | #define SYM_UCMD_PTR(cmd) ((struct sym_ucmd *)(&(cmd)->SCp)) | |
135 | #define SYM_SOFTC_PTR(cmd) sym_get_hcb(cmd->device->host) | |
136 | ||
1da177e4 LT |
137 | /* |
138 | * Complete a pending CAM CCB. | |
139 | */ | |
140 | void sym_xpt_done(struct sym_hcb *np, struct scsi_cmnd *cmd) | |
141 | { | |
2ba65367 MW |
142 | struct sym_ucmd *ucmd = SYM_UCMD_PTR(cmd); |
143 | BUILD_BUG_ON(sizeof(struct scsi_pointer) < sizeof(struct sym_ucmd)); | |
144 | ||
145 | if (ucmd->eh_done) | |
146 | complete(ucmd->eh_done); | |
147 | ||
39c05d1e | 148 | scsi_dma_unmap(cmd); |
1da177e4 LT |
149 | cmd->scsi_done(cmd); |
150 | } | |
151 | ||
1da177e4 LT |
152 | /* |
153 | * Tell the SCSI layer about a BUS RESET. | |
154 | */ | |
155 | void sym_xpt_async_bus_reset(struct sym_hcb *np) | |
156 | { | |
157 | printf_notice("%s: SCSI BUS has been reset.\n", sym_name(np)); | |
158 | np->s.settle_time = jiffies + sym_driver_setup.settle_delay * HZ; | |
159 | np->s.settle_time_valid = 1; | |
160 | if (sym_verbose >= 2) | |
161 | printf_info("%s: command processing suspended for %d seconds\n", | |
162 | sym_name(np), sym_driver_setup.settle_delay); | |
163 | } | |
164 | ||
1da177e4 LT |
165 | /* |
166 | * Choose the more appropriate CAM status if | |
167 | * the IO encountered an extended error. | |
168 | */ | |
169 | static int sym_xerr_cam_status(int cam_status, int x_status) | |
170 | { | |
171 | if (x_status) { | |
172 | if (x_status & XE_PARITY_ERR) | |
173 | cam_status = DID_PARITY; | |
174 | else if (x_status &(XE_EXTRA_DATA|XE_SODL_UNRUN|XE_SWIDE_OVRUN)) | |
175 | cam_status = DID_ERROR; | |
176 | else if (x_status & XE_BAD_PHASE) | |
177 | cam_status = DID_ERROR; | |
178 | else | |
179 | cam_status = DID_ERROR; | |
180 | } | |
181 | return cam_status; | |
182 | } | |
183 | ||
184 | /* | |
185 | * Build CAM result for a failed or auto-sensed IO. | |
186 | */ | |
187 | void sym_set_cam_result_error(struct sym_hcb *np, struct sym_ccb *cp, int resid) | |
188 | { | |
189 | struct scsi_cmnd *cmd = cp->cmd; | |
190 | u_int cam_status, scsi_status, drv_status; | |
191 | ||
192 | drv_status = 0; | |
193 | cam_status = DID_OK; | |
194 | scsi_status = cp->ssss_status; | |
195 | ||
196 | if (cp->host_flags & HF_SENSE) { | |
197 | scsi_status = cp->sv_scsi_status; | |
198 | resid = cp->sv_resid; | |
199 | if (sym_verbose && cp->sv_xerr_status) | |
200 | sym_print_xerr(cmd, cp->sv_xerr_status); | |
201 | if (cp->host_status == HS_COMPLETE && | |
202 | cp->ssss_status == S_GOOD && | |
203 | cp->xerr_status == 0) { | |
204 | cam_status = sym_xerr_cam_status(DID_OK, | |
205 | cp->sv_xerr_status); | |
206 | drv_status = DRIVER_SENSE; | |
207 | /* | |
208 | * Bounce back the sense data to user. | |
209 | */ | |
de15c201 | 210 | memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); |
1da177e4 | 211 | memcpy(cmd->sense_buffer, cp->sns_bbuf, |
b80ca4f7 | 212 | min(SCSI_SENSE_BUFFERSIZE, SYM_SNS_BBUF_LEN)); |
1da177e4 LT |
213 | #if 0 |
214 | /* | |
215 | * If the device reports a UNIT ATTENTION condition | |
216 | * due to a RESET condition, we should consider all | |
217 | * disconnect CCBs for this unit as aborted. | |
218 | */ | |
219 | if (1) { | |
220 | u_char *p; | |
221 | p = (u_char *) cmd->sense_data; | |
222 | if (p[0]==0x70 && p[2]==0x6 && p[12]==0x29) | |
223 | sym_clear_tasks(np, DID_ABORT, | |
224 | cp->target,cp->lun, -1); | |
225 | } | |
226 | #endif | |
227 | } else { | |
228 | /* | |
229 | * Error return from our internal request sense. This | |
230 | * is bad: we must clear the contingent allegiance | |
231 | * condition otherwise the device will always return | |
232 | * BUSY. Use a big stick. | |
233 | */ | |
234 | sym_reset_scsi_target(np, cmd->device->id); | |
235 | cam_status = DID_ERROR; | |
236 | } | |
237 | } else if (cp->host_status == HS_COMPLETE) /* Bad SCSI status */ | |
238 | cam_status = DID_OK; | |
239 | else if (cp->host_status == HS_SEL_TIMEOUT) /* Selection timeout */ | |
240 | cam_status = DID_NO_CONNECT; | |
241 | else if (cp->host_status == HS_UNEXPECTED) /* Unexpected BUS FREE*/ | |
242 | cam_status = DID_ERROR; | |
243 | else { /* Extended error */ | |
244 | if (sym_verbose) { | |
245 | sym_print_addr(cmd, "COMMAND FAILED (%x %x %x).\n", | |
246 | cp->host_status, cp->ssss_status, | |
247 | cp->xerr_status); | |
248 | } | |
249 | /* | |
250 | * Set the most appropriate value for CAM status. | |
251 | */ | |
252 | cam_status = sym_xerr_cam_status(DID_ERROR, cp->xerr_status); | |
253 | } | |
938febd6 | 254 | scsi_set_resid(cmd, resid); |
1da177e4 LT |
255 | cmd->result = (drv_status << 24) + (cam_status << 16) + scsi_status; |
256 | } | |
257 | ||
1da177e4 LT |
258 | static int sym_scatter(struct sym_hcb *np, struct sym_ccb *cp, struct scsi_cmnd *cmd) |
259 | { | |
260 | int segment; | |
938febd6 | 261 | int use_sg; |
1da177e4 LT |
262 | |
263 | cp->data_len = 0; | |
264 | ||
39c05d1e | 265 | use_sg = scsi_dma_map(cmd); |
938febd6 FT |
266 | if (use_sg > 0) { |
267 | struct scatterlist *sg; | |
53222b90 | 268 | struct sym_tcb *tp = &np->target[cp->target]; |
1da177e4 LT |
269 | struct sym_tblmove *data; |
270 | ||
271 | if (use_sg > SYM_CONF_MAX_SG) { | |
39c05d1e | 272 | scsi_dma_unmap(cmd); |
1da177e4 LT |
273 | return -1; |
274 | } | |
275 | ||
276 | data = &cp->phys.data[SYM_CONF_MAX_SG - use_sg]; | |
277 | ||
938febd6 FT |
278 | scsi_for_each_sg(cmd, sg, use_sg, segment) { |
279 | dma_addr_t baddr = sg_dma_address(sg); | |
280 | unsigned int len = sg_dma_len(sg); | |
1da177e4 | 281 | |
53222b90 MW |
282 | if ((len & 1) && (tp->head.wval & EWS)) { |
283 | len++; | |
284 | cp->odd_byte_adjustment++; | |
285 | } | |
286 | ||
1da177e4 LT |
287 | sym_build_sge(np, &data[segment], baddr, len); |
288 | cp->data_len += len; | |
289 | } | |
290 | } else { | |
291 | segment = -2; | |
292 | } | |
293 | ||
294 | return segment; | |
295 | } | |
296 | ||
297 | /* | |
298 | * Queue a SCSI command. | |
299 | */ | |
300 | static int sym_queue_command(struct sym_hcb *np, struct scsi_cmnd *cmd) | |
301 | { | |
302 | struct scsi_device *sdev = cmd->device; | |
303 | struct sym_tcb *tp; | |
304 | struct sym_lcb *lp; | |
305 | struct sym_ccb *cp; | |
306 | int order; | |
307 | ||
1da177e4 LT |
308 | /* |
309 | * Retrieve the target descriptor. | |
310 | */ | |
311 | tp = &np->target[sdev->id]; | |
312 | ||
1da177e4 LT |
313 | /* |
314 | * Select tagged/untagged. | |
315 | */ | |
316 | lp = sym_lp(tp, sdev->lun); | |
317 | order = (lp && lp->s.reqtags) ? M_SIMPLE_TAG : 0; | |
318 | ||
319 | /* | |
320 | * Queue the SCSI IO. | |
321 | */ | |
322 | cp = sym_get_ccb(np, cmd, order); | |
323 | if (!cp) | |
324 | return 1; /* Means resource shortage */ | |
325 | sym_queue_scsiio(np, cmd, cp); | |
326 | return 0; | |
327 | } | |
328 | ||
329 | /* | |
330 | * Setup buffers and pointers that address the CDB. | |
331 | */ | |
332 | static inline int sym_setup_cdb(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *cp) | |
333 | { | |
1da177e4 | 334 | memcpy(cp->cdb_buf, cmd->cmnd, cmd->cmd_len); |
1da177e4 | 335 | |
53222b90 MW |
336 | cp->phys.cmd.addr = CCB_BA(cp, cdb_buf[0]); |
337 | cp->phys.cmd.size = cpu_to_scr(cmd->cmd_len); | |
1da177e4 LT |
338 | |
339 | return 0; | |
340 | } | |
341 | ||
342 | /* | |
343 | * Setup pointers that address the data and start the I/O. | |
344 | */ | |
345 | int sym_setup_data_and_start(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *cp) | |
346 | { | |
44f30b0f MW |
347 | u32 lastp, goalp; |
348 | int dir; | |
1da177e4 LT |
349 | |
350 | /* | |
351 | * Build the CDB. | |
352 | */ | |
353 | if (sym_setup_cdb(np, cmd, cp)) | |
354 | goto out_abort; | |
355 | ||
356 | /* | |
357 | * No direction means no data. | |
358 | */ | |
359 | dir = cmd->sc_data_direction; | |
360 | if (dir != DMA_NONE) { | |
361 | cp->segments = sym_scatter(np, cp, cmd); | |
362 | if (cp->segments < 0) { | |
53222b90 | 363 | sym_set_cam_status(cmd, DID_ERROR); |
1da177e4 LT |
364 | goto out_abort; |
365 | } | |
44f30b0f MW |
366 | |
367 | /* | |
368 | * No segments means no data. | |
369 | */ | |
370 | if (!cp->segments) | |
371 | dir = DMA_NONE; | |
1da177e4 LT |
372 | } else { |
373 | cp->data_len = 0; | |
374 | cp->segments = 0; | |
375 | } | |
376 | ||
377 | /* | |
44f30b0f MW |
378 | * Set the data pointer. |
379 | */ | |
380 | switch (dir) { | |
381 | case DMA_BIDIRECTIONAL: | |
3fb364e0 | 382 | scmd_printk(KERN_INFO, cmd, "got DMA_BIDIRECTIONAL command"); |
44f30b0f MW |
383 | sym_set_cam_status(cmd, DID_ERROR); |
384 | goto out_abort; | |
385 | case DMA_TO_DEVICE: | |
386 | goalp = SCRIPTA_BA(np, data_out2) + 8; | |
387 | lastp = goalp - 8 - (cp->segments * (2*4)); | |
388 | break; | |
389 | case DMA_FROM_DEVICE: | |
390 | cp->host_flags |= HF_DATA_IN; | |
391 | goalp = SCRIPTA_BA(np, data_in2) + 8; | |
392 | lastp = goalp - 8 - (cp->segments * (2*4)); | |
393 | break; | |
394 | case DMA_NONE: | |
395 | default: | |
396 | lastp = goalp = SCRIPTB_BA(np, no_data); | |
397 | break; | |
398 | } | |
399 | ||
400 | /* | |
401 | * Set all pointers values needed by SCRIPTS. | |
1da177e4 | 402 | */ |
44f30b0f MW |
403 | cp->phys.head.lastp = cpu_to_scr(lastp); |
404 | cp->phys.head.savep = cpu_to_scr(lastp); | |
405 | cp->startp = cp->phys.head.savep; | |
406 | cp->goalp = cpu_to_scr(goalp); | |
1da177e4 LT |
407 | |
408 | /* | |
409 | * When `#ifed 1', the code below makes the driver | |
410 | * panic on the first attempt to write to a SCSI device. | |
411 | * It is the first test we want to do after a driver | |
412 | * change that does not seem obviously safe. :) | |
413 | */ | |
414 | #if 0 | |
415 | switch (cp->cdb_buf[0]) { | |
416 | case 0x0A: case 0x2A: case 0xAA: | |
417 | panic("XXXXXXXXXXXXX WRITE NOT YET ALLOWED XXXXXXXXXXXXXX\n"); | |
418 | break; | |
419 | default: | |
420 | break; | |
421 | } | |
422 | #endif | |
423 | ||
424 | /* | |
425 | * activate this job. | |
426 | */ | |
3bea15a7 | 427 | sym_put_start_queue(np, cp); |
1da177e4 LT |
428 | return 0; |
429 | ||
430 | out_abort: | |
431 | sym_free_ccb(np, cp); | |
432 | sym_xpt_done(np, cmd); | |
433 | return 0; | |
434 | } | |
435 | ||
436 | ||
437 | /* | |
438 | * timer daemon. | |
439 | * | |
440 | * Misused to keep the driver running when | |
441 | * interrupts are not configured correctly. | |
442 | */ | |
443 | static void sym_timer(struct sym_hcb *np) | |
444 | { | |
445 | unsigned long thistime = jiffies; | |
446 | ||
447 | /* | |
448 | * Restart the timer. | |
449 | */ | |
450 | np->s.timer.expires = thistime + SYM_CONF_TIMER_INTERVAL; | |
451 | add_timer(&np->s.timer); | |
452 | ||
453 | /* | |
454 | * If we are resetting the ncr, wait for settle_time before | |
455 | * clearing it. Then command processing will be resumed. | |
456 | */ | |
457 | if (np->s.settle_time_valid) { | |
458 | if (time_before_eq(np->s.settle_time, thistime)) { | |
459 | if (sym_verbose >= 2 ) | |
460 | printk("%s: command processing resumed\n", | |
461 | sym_name(np)); | |
462 | np->s.settle_time_valid = 0; | |
463 | } | |
464 | return; | |
465 | } | |
466 | ||
467 | /* | |
468 | * Nothing to do for now, but that may come. | |
469 | */ | |
470 | if (np->s.lasttime + 4*HZ < thistime) { | |
471 | np->s.lasttime = thistime; | |
472 | } | |
473 | ||
474 | #ifdef SYM_CONF_PCIQ_MAY_MISS_COMPLETIONS | |
475 | /* | |
476 | * Some way-broken PCI bridges may lead to | |
477 | * completions being lost when the clearing | |
478 | * of the INTFLY flag by the CPU occurs | |
479 | * concurrently with the chip raising this flag. | |
480 | * If this ever happen, lost completions will | |
481 | * be reaped here. | |
482 | */ | |
483 | sym_wakeup_done(np); | |
484 | #endif | |
485 | } | |
486 | ||
487 | ||
488 | /* | |
489 | * PCI BUS error handler. | |
490 | */ | |
5111eefa | 491 | void sym_log_bus_error(struct Scsi_Host *shost) |
1da177e4 | 492 | { |
5111eefa MW |
493 | struct sym_data *sym_data = shost_priv(shost); |
494 | struct pci_dev *pdev = sym_data->pdev; | |
495 | unsigned short pci_sts; | |
496 | pci_read_config_word(pdev, PCI_STATUS, &pci_sts); | |
1da177e4 | 497 | if (pci_sts & 0xf900) { |
5111eefa MW |
498 | pci_write_config_word(pdev, PCI_STATUS, pci_sts); |
499 | shost_printk(KERN_WARNING, shost, | |
500 | "PCI bus error: status = 0x%04x\n", pci_sts & 0xf900); | |
1da177e4 LT |
501 | } |
502 | } | |
503 | ||
504 | /* | |
505 | * queuecommand method. Entered with the host adapter lock held and | |
506 | * interrupts disabled. | |
507 | */ | |
508 | static int sym53c8xx_queue_command(struct scsi_cmnd *cmd, | |
509 | void (*done)(struct scsi_cmnd *)) | |
510 | { | |
511 | struct sym_hcb *np = SYM_SOFTC_PTR(cmd); | |
512 | struct sym_ucmd *ucp = SYM_UCMD_PTR(cmd); | |
513 | int sts = 0; | |
514 | ||
71c222dc | 515 | cmd->scsi_done = done; |
1da177e4 LT |
516 | memset(ucp, 0, sizeof(*ucp)); |
517 | ||
518 | /* | |
519 | * Shorten our settle_time if needed for | |
520 | * this command not to time out. | |
521 | */ | |
242f9dcb JA |
522 | if (np->s.settle_time_valid && cmd->request->timeout) { |
523 | unsigned long tlimit = jiffies + cmd->request->timeout; | |
1da177e4 LT |
524 | tlimit -= SYM_CONF_TIMER_INTERVAL*2; |
525 | if (time_after(np->s.settle_time, tlimit)) { | |
526 | np->s.settle_time = tlimit; | |
527 | } | |
528 | } | |
529 | ||
530 | if (np->s.settle_time_valid) | |
531 | return SCSI_MLQUEUE_HOST_BUSY; | |
532 | ||
533 | sts = sym_queue_command(np, cmd); | |
534 | if (sts) | |
535 | return SCSI_MLQUEUE_HOST_BUSY; | |
536 | return 0; | |
537 | } | |
538 | ||
539 | /* | |
540 | * Linux entry point of the interrupt handler. | |
541 | */ | |
7d12e780 | 542 | static irqreturn_t sym53c8xx_intr(int irq, void *dev_id) |
1da177e4 | 543 | { |
99c9e0a1 MW |
544 | struct Scsi_Host *shost = dev_id; |
545 | struct sym_data *sym_data = shost_priv(shost); | |
546 | irqreturn_t result; | |
1da177e4 | 547 | |
d68cd759 | 548 | /* Avoid spinloop trying to handle interrupts on frozen device */ |
99c9e0a1 | 549 | if (pci_channel_offline(sym_data->pdev)) |
d68cd759 LV |
550 | return IRQ_NONE; |
551 | ||
1da177e4 LT |
552 | if (DEBUG_FLAGS & DEBUG_TINY) printf_debug ("["); |
553 | ||
99c9e0a1 MW |
554 | spin_lock(shost->host_lock); |
555 | result = sym_interrupt(shost); | |
556 | spin_unlock(shost->host_lock); | |
1da177e4 LT |
557 | |
558 | if (DEBUG_FLAGS & DEBUG_TINY) printf_debug ("]\n"); | |
559 | ||
99c9e0a1 | 560 | return result; |
1da177e4 LT |
561 | } |
562 | ||
563 | /* | |
564 | * Linux entry point of the timer handler | |
565 | */ | |
566 | static void sym53c8xx_timer(unsigned long npref) | |
567 | { | |
568 | struct sym_hcb *np = (struct sym_hcb *)npref; | |
569 | unsigned long flags; | |
570 | ||
571 | spin_lock_irqsave(np->s.host->host_lock, flags); | |
572 | sym_timer(np); | |
573 | spin_unlock_irqrestore(np->s.host->host_lock, flags); | |
574 | } | |
575 | ||
576 | ||
577 | /* | |
578 | * What the eh thread wants us to perform. | |
579 | */ | |
580 | #define SYM_EH_ABORT 0 | |
581 | #define SYM_EH_DEVICE_RESET 1 | |
582 | #define SYM_EH_BUS_RESET 2 | |
583 | #define SYM_EH_HOST_RESET 3 | |
584 | ||
1da177e4 LT |
585 | /* |
586 | * Generic method for our eh processing. | |
587 | * The 'op' argument tells what we have to do. | |
588 | */ | |
589 | static int sym_eh_handler(int op, char *opname, struct scsi_cmnd *cmd) | |
590 | { | |
b4e93a73 | 591 | struct sym_ucmd *ucmd = SYM_UCMD_PTR(cmd); |
5111eefa MW |
592 | struct Scsi_Host *shost = cmd->device->host; |
593 | struct sym_data *sym_data = shost_priv(shost); | |
594 | struct pci_dev *pdev = sym_data->pdev; | |
595 | struct sym_hcb *np = sym_data->ncb; | |
1da177e4 | 596 | SYM_QUEHEAD *qp; |
2ba65367 | 597 | int cmd_queued = 0; |
1da177e4 | 598 | int sts = -1; |
d637c454 | 599 | struct completion eh_done; |
1da177e4 | 600 | |
5111eefa | 601 | scmd_printk(KERN_WARNING, cmd, "%s operation started\n", opname); |
1da177e4 | 602 | |
d68cd759 LV |
603 | /* We may be in an error condition because the PCI bus |
604 | * went down. In this case, we need to wait until the | |
605 | * PCI bus is reset, the card is reset, and only then | |
606 | * proceed with the scsi error recovery. There's no | |
607 | * point in hurrying; take a leisurely wait. | |
608 | */ | |
609 | #define WAIT_FOR_PCI_RECOVERY 35 | |
610 | if (pci_channel_offline(pdev)) { | |
d68cd759 LV |
611 | int finished_reset = 0; |
612 | init_completion(&eh_done); | |
5111eefa | 613 | spin_lock_irq(shost->host_lock); |
d68cd759 LV |
614 | /* Make sure we didn't race */ |
615 | if (pci_channel_offline(pdev)) { | |
d9aa3af0 KH |
616 | BUG_ON(sym_data->io_reset); |
617 | sym_data->io_reset = &eh_done; | |
d68cd759 | 618 | } else { |
d68cd759 | 619 | finished_reset = 1; |
99c9e0a1 | 620 | } |
5111eefa | 621 | spin_unlock_irq(shost->host_lock); |
d68cd759 | 622 | if (!finished_reset) |
d9aa3af0 KH |
623 | finished_reset = wait_for_completion_timeout |
624 | (sym_data->io_reset, | |
d68cd759 | 625 | WAIT_FOR_PCI_RECOVERY*HZ); |
d9aa3af0 KH |
626 | spin_lock_irq(shost->host_lock); |
627 | sym_data->io_reset = NULL; | |
628 | spin_unlock_irq(shost->host_lock); | |
d68cd759 LV |
629 | if (!finished_reset) |
630 | return SCSI_FAILED; | |
631 | } | |
632 | ||
5111eefa | 633 | spin_lock_irq(shost->host_lock); |
1da177e4 LT |
634 | /* This one is queued in some place -> to wait for completion */ |
635 | FOR_EACH_QUEUED_ELEMENT(&np->busy_ccbq, qp) { | |
636 | struct sym_ccb *cp = sym_que_entry(qp, struct sym_ccb, link_ccbq); | |
637 | if (cp->cmd == cmd) { | |
2ba65367 | 638 | cmd_queued = 1; |
ab19d52b | 639 | break; |
1da177e4 LT |
640 | } |
641 | } | |
642 | ||
1da177e4 LT |
643 | /* Try to proceed the operation we have been asked for */ |
644 | sts = -1; | |
645 | switch(op) { | |
646 | case SYM_EH_ABORT: | |
647 | sts = sym_abort_scsiio(np, cmd, 1); | |
648 | break; | |
649 | case SYM_EH_DEVICE_RESET: | |
650 | sts = sym_reset_scsi_target(np, cmd->device->id); | |
651 | break; | |
652 | case SYM_EH_BUS_RESET: | |
653 | sym_reset_scsi_bus(np, 1); | |
654 | sts = 0; | |
655 | break; | |
656 | case SYM_EH_HOST_RESET: | |
657 | sym_reset_scsi_bus(np, 0); | |
5111eefa | 658 | sym_start_up(shost, 1); |
1da177e4 LT |
659 | sts = 0; |
660 | break; | |
661 | default: | |
662 | break; | |
663 | } | |
664 | ||
665 | /* On error, restore everything and cross fingers :) */ | |
2ba65367 MW |
666 | if (sts) |
667 | cmd_queued = 0; | |
1da177e4 | 668 | |
2ba65367 MW |
669 | if (cmd_queued) { |
670 | init_completion(&eh_done); | |
671 | ucmd->eh_done = &eh_done; | |
5111eefa | 672 | spin_unlock_irq(shost->host_lock); |
d637c454 | 673 | if (!wait_for_completion_timeout(&eh_done, 5*HZ)) { |
2ba65367 | 674 | ucmd->eh_done = NULL; |
1da177e4 | 675 | sts = -2; |
b4e93a73 | 676 | } |
2ba65367 | 677 | } else { |
5111eefa | 678 | spin_unlock_irq(shost->host_lock); |
1da177e4 | 679 | } |
2ba65367 | 680 | |
1da177e4 LT |
681 | dev_warn(&cmd->device->sdev_gendev, "%s operation %s.\n", opname, |
682 | sts==0 ? "complete" :sts==-2 ? "timed-out" : "failed"); | |
683 | return sts ? SCSI_FAILED : SCSI_SUCCESS; | |
684 | } | |
685 | ||
686 | ||
687 | /* | |
688 | * Error handlers called from the eh thread (one thread per HBA). | |
689 | */ | |
690 | static int sym53c8xx_eh_abort_handler(struct scsi_cmnd *cmd) | |
691 | { | |
ab19d52b | 692 | return sym_eh_handler(SYM_EH_ABORT, "ABORT", cmd); |
1da177e4 LT |
693 | } |
694 | ||
695 | static int sym53c8xx_eh_device_reset_handler(struct scsi_cmnd *cmd) | |
696 | { | |
ab19d52b | 697 | return sym_eh_handler(SYM_EH_DEVICE_RESET, "DEVICE RESET", cmd); |
1da177e4 LT |
698 | } |
699 | ||
700 | static int sym53c8xx_eh_bus_reset_handler(struct scsi_cmnd *cmd) | |
701 | { | |
ab19d52b | 702 | return sym_eh_handler(SYM_EH_BUS_RESET, "BUS RESET", cmd); |
1da177e4 LT |
703 | } |
704 | ||
705 | static int sym53c8xx_eh_host_reset_handler(struct scsi_cmnd *cmd) | |
706 | { | |
ab19d52b | 707 | return sym_eh_handler(SYM_EH_HOST_RESET, "HOST RESET", cmd); |
1da177e4 LT |
708 | } |
709 | ||
710 | /* | |
711 | * Tune device queuing depth, according to various limits. | |
712 | */ | |
713 | static void sym_tune_dev_queuing(struct sym_tcb *tp, int lun, u_short reqtags) | |
714 | { | |
715 | struct sym_lcb *lp = sym_lp(tp, lun); | |
716 | u_short oldtags; | |
717 | ||
718 | if (!lp) | |
719 | return; | |
720 | ||
721 | oldtags = lp->s.reqtags; | |
722 | ||
723 | if (reqtags > lp->s.scdev_depth) | |
724 | reqtags = lp->s.scdev_depth; | |
725 | ||
1da177e4 LT |
726 | lp->s.reqtags = reqtags; |
727 | ||
728 | if (reqtags != oldtags) { | |
53222b90 | 729 | dev_info(&tp->starget->dev, |
1da177e4 | 730 | "tagged command queuing %s, command queue depth %d.\n", |
3bea15a7 | 731 | lp->s.reqtags ? "enabled" : "disabled", reqtags); |
1da177e4 LT |
732 | } |
733 | } | |
734 | ||
53222b90 | 735 | static int sym53c8xx_slave_alloc(struct scsi_device *sdev) |
1da177e4 | 736 | { |
84e203a2 MW |
737 | struct sym_hcb *np = sym_get_hcb(sdev->host); |
738 | struct sym_tcb *tp = &np->target[sdev->id]; | |
739 | struct sym_lcb *lp; | |
1da177e4 | 740 | |
53222b90 MW |
741 | if (sdev->id >= SYM_CONF_MAX_TARGET || sdev->lun >= SYM_CONF_MAX_LUN) |
742 | return -ENXIO; | |
1da177e4 | 743 | |
66e8d1cc | 744 | tp->starget = sdev->sdev_target; |
53222b90 MW |
745 | /* |
746 | * Fail the device init if the device is flagged NOSCAN at BOOT in | |
747 | * the NVRAM. This may speed up boot and maintain coherency with | |
748 | * BIOS device numbering. Clearing the flag allows the user to | |
749 | * rescan skipped devices later. We also return an error for | |
750 | * devices not flagged for SCAN LUNS in the NVRAM since some single | |
751 | * lun devices behave badly when asked for a non zero LUN. | |
752 | */ | |
753 | ||
66e8d1cc | 754 | if (tp->usrflags & SYM_SCAN_BOOT_DISABLED) { |
53222b90 | 755 | tp->usrflags &= ~SYM_SCAN_BOOT_DISABLED; |
66e8d1cc MW |
756 | starget_printk(KERN_INFO, tp->starget, |
757 | "Scan at boot disabled in NVRAM\n"); | |
53222b90 MW |
758 | return -ENXIO; |
759 | } | |
760 | ||
66e8d1cc MW |
761 | if (tp->usrflags & SYM_SCAN_LUNS_DISABLED) { |
762 | if (sdev->lun != 0) | |
763 | return -ENXIO; | |
764 | starget_printk(KERN_INFO, tp->starget, | |
765 | "Multiple LUNs disabled in NVRAM\n"); | |
766 | } | |
767 | ||
84e203a2 MW |
768 | lp = sym_alloc_lcb(np, sdev->id, sdev->lun); |
769 | if (!lp) | |
770 | return -ENOMEM; | |
771 | ||
b37df489 MW |
772 | spi_min_period(tp->starget) = tp->usr_period; |
773 | spi_max_width(tp->starget) = tp->usr_width; | |
774 | ||
53222b90 | 775 | return 0; |
1da177e4 LT |
776 | } |
777 | ||
778 | /* | |
779 | * Linux entry point for device queue sizing. | |
780 | */ | |
84e203a2 | 781 | static int sym53c8xx_slave_configure(struct scsi_device *sdev) |
1da177e4 | 782 | { |
84e203a2 MW |
783 | struct sym_hcb *np = sym_get_hcb(sdev->host); |
784 | struct sym_tcb *tp = &np->target[sdev->id]; | |
785 | struct sym_lcb *lp = sym_lp(tp, sdev->lun); | |
1da177e4 LT |
786 | int reqtags, depth_to_use; |
787 | ||
1da177e4 LT |
788 | /* |
789 | * Get user flags. | |
790 | */ | |
791 | lp->curr_flags = lp->user_flags; | |
792 | ||
793 | /* | |
794 | * Select queue depth from driver setup. | |
795 | * Donnot use more than configured by user. | |
796 | * Use at least 2. | |
797 | * Donnot use more than our maximum. | |
798 | */ | |
a44131b3 | 799 | reqtags = sym_driver_setup.max_tag; |
1da177e4 LT |
800 | if (reqtags > tp->usrtags) |
801 | reqtags = tp->usrtags; | |
84e203a2 | 802 | if (!sdev->tagged_supported) |
1da177e4 | 803 | reqtags = 0; |
1da177e4 LT |
804 | if (reqtags > SYM_CONF_MAX_TAG) |
805 | reqtags = SYM_CONF_MAX_TAG; | |
a44131b3 | 806 | depth_to_use = reqtags ? reqtags : 2; |
84e203a2 | 807 | scsi_adjust_queue_depth(sdev, |
a44131b3 | 808 | sdev->tagged_supported ? MSG_SIMPLE_TAG : 0, |
1da177e4 LT |
809 | depth_to_use); |
810 | lp->s.scdev_depth = depth_to_use; | |
84e203a2 | 811 | sym_tune_dev_queuing(tp, sdev->lun, reqtags); |
1da177e4 | 812 | |
84e203a2 MW |
813 | if (!spi_initial_dv(sdev->sdev_target)) |
814 | spi_dv_device(sdev); | |
1da177e4 LT |
815 | |
816 | return 0; | |
817 | } | |
818 | ||
84e203a2 MW |
819 | static void sym53c8xx_slave_destroy(struct scsi_device *sdev) |
820 | { | |
821 | struct sym_hcb *np = sym_get_hcb(sdev->host); | |
822 | struct sym_lcb *lp = sym_lp(&np->target[sdev->id], sdev->lun); | |
823 | ||
824 | if (lp->itlq_tbl) | |
825 | sym_mfree_dma(lp->itlq_tbl, SYM_CONF_MAX_TASK * 4, "ITLQ_TBL"); | |
826 | kfree(lp->cb_tags); | |
827 | sym_mfree_dma(lp, sizeof(*lp), "LCB"); | |
828 | } | |
829 | ||
1da177e4 LT |
830 | /* |
831 | * Linux entry point for info() function | |
832 | */ | |
833 | static const char *sym53c8xx_info (struct Scsi_Host *host) | |
834 | { | |
835 | return SYM_DRIVER_NAME; | |
836 | } | |
837 | ||
838 | ||
839 | #ifdef SYM_LINUX_PROC_INFO_SUPPORT | |
840 | /* | |
841 | * Proc file system stuff | |
842 | * | |
843 | * A read operation returns adapter information. | |
844 | * A write operation is a control command. | |
845 | * The string is parsed in the driver code and the command is passed | |
846 | * to the sym_usercmd() function. | |
847 | */ | |
848 | ||
849 | #ifdef SYM_LINUX_USER_COMMAND_SUPPORT | |
850 | ||
851 | struct sym_usrcmd { | |
852 | u_long target; | |
853 | u_long lun; | |
854 | u_long data; | |
855 | u_long cmd; | |
856 | }; | |
857 | ||
858 | #define UC_SETSYNC 10 | |
859 | #define UC_SETTAGS 11 | |
860 | #define UC_SETDEBUG 12 | |
861 | #define UC_SETWIDE 14 | |
862 | #define UC_SETFLAG 15 | |
863 | #define UC_SETVERBOSE 17 | |
864 | #define UC_RESETDEV 18 | |
865 | #define UC_CLEARDEV 19 | |
866 | ||
867 | static void sym_exec_user_command (struct sym_hcb *np, struct sym_usrcmd *uc) | |
868 | { | |
869 | struct sym_tcb *tp; | |
870 | int t, l; | |
871 | ||
872 | switch (uc->cmd) { | |
873 | case 0: return; | |
874 | ||
875 | #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT | |
876 | case UC_SETDEBUG: | |
877 | sym_debug_flags = uc->data; | |
878 | break; | |
879 | #endif | |
880 | case UC_SETVERBOSE: | |
881 | np->verbose = uc->data; | |
882 | break; | |
883 | default: | |
884 | /* | |
885 | * We assume that other commands apply to targets. | |
886 | * This should always be the case and avoid the below | |
887 | * 4 lines to be repeated 6 times. | |
888 | */ | |
889 | for (t = 0; t < SYM_CONF_MAX_TARGET; t++) { | |
890 | if (!((uc->target >> t) & 1)) | |
891 | continue; | |
892 | tp = &np->target[t]; | |
893 | ||
894 | switch (uc->cmd) { | |
895 | ||
896 | case UC_SETSYNC: | |
897 | if (!uc->data || uc->data >= 255) { | |
898 | tp->tgoal.iu = tp->tgoal.dt = | |
899 | tp->tgoal.qas = 0; | |
900 | tp->tgoal.offset = 0; | |
901 | } else if (uc->data <= 9 && np->minsync_dt) { | |
902 | if (uc->data < np->minsync_dt) | |
903 | uc->data = np->minsync_dt; | |
904 | tp->tgoal.iu = tp->tgoal.dt = | |
905 | tp->tgoal.qas = 1; | |
906 | tp->tgoal.width = 1; | |
907 | tp->tgoal.period = uc->data; | |
908 | tp->tgoal.offset = np->maxoffs_dt; | |
909 | } else { | |
910 | if (uc->data < np->minsync) | |
911 | uc->data = np->minsync; | |
912 | tp->tgoal.iu = tp->tgoal.dt = | |
913 | tp->tgoal.qas = 0; | |
914 | tp->tgoal.period = uc->data; | |
915 | tp->tgoal.offset = np->maxoffs; | |
916 | } | |
917 | tp->tgoal.check_nego = 1; | |
918 | break; | |
919 | case UC_SETWIDE: | |
920 | tp->tgoal.width = uc->data ? 1 : 0; | |
921 | tp->tgoal.check_nego = 1; | |
922 | break; | |
923 | case UC_SETTAGS: | |
924 | for (l = 0; l < SYM_CONF_MAX_LUN; l++) | |
925 | sym_tune_dev_queuing(tp, l, uc->data); | |
926 | break; | |
927 | case UC_RESETDEV: | |
928 | tp->to_reset = 1; | |
929 | np->istat_sem = SEM; | |
930 | OUTB(np, nc_istat, SIGP|SEM); | |
931 | break; | |
932 | case UC_CLEARDEV: | |
933 | for (l = 0; l < SYM_CONF_MAX_LUN; l++) { | |
934 | struct sym_lcb *lp = sym_lp(tp, l); | |
935 | if (lp) lp->to_clear = 1; | |
936 | } | |
937 | np->istat_sem = SEM; | |
938 | OUTB(np, nc_istat, SIGP|SEM); | |
939 | break; | |
940 | case UC_SETFLAG: | |
941 | tp->usrflags = uc->data; | |
942 | break; | |
943 | } | |
944 | } | |
945 | break; | |
946 | } | |
947 | } | |
948 | ||
949 | static int skip_spaces(char *ptr, int len) | |
950 | { | |
951 | int cnt, c; | |
952 | ||
953 | for (cnt = len; cnt > 0 && (c = *ptr++) && isspace(c); cnt--); | |
954 | ||
955 | return (len - cnt); | |
956 | } | |
957 | ||
958 | static int get_int_arg(char *ptr, int len, u_long *pv) | |
959 | { | |
960 | char *end; | |
961 | ||
962 | *pv = simple_strtoul(ptr, &end, 10); | |
963 | return (end - ptr); | |
964 | } | |
965 | ||
966 | static int is_keyword(char *ptr, int len, char *verb) | |
967 | { | |
968 | int verb_len = strlen(verb); | |
969 | ||
970 | if (len >= verb_len && !memcmp(verb, ptr, verb_len)) | |
971 | return verb_len; | |
972 | else | |
973 | return 0; | |
974 | } | |
975 | ||
976 | #define SKIP_SPACES(ptr, len) \ | |
977 | if ((arg_len = skip_spaces(ptr, len)) < 1) \ | |
978 | return -EINVAL; \ | |
979 | ptr += arg_len; len -= arg_len; | |
980 | ||
981 | #define GET_INT_ARG(ptr, len, v) \ | |
982 | if (!(arg_len = get_int_arg(ptr, len, &(v)))) \ | |
983 | return -EINVAL; \ | |
984 | ptr += arg_len; len -= arg_len; | |
985 | ||
986 | ||
987 | /* | |
988 | * Parse a control command | |
989 | */ | |
990 | ||
5111eefa | 991 | static int sym_user_command(struct Scsi_Host *shost, char *buffer, int length) |
1da177e4 | 992 | { |
5111eefa | 993 | struct sym_hcb *np = sym_get_hcb(shost); |
1da177e4 LT |
994 | char *ptr = buffer; |
995 | int len = length; | |
996 | struct sym_usrcmd cmd, *uc = &cmd; | |
997 | int arg_len; | |
998 | u_long target; | |
999 | ||
1000 | memset(uc, 0, sizeof(*uc)); | |
1001 | ||
1002 | if (len > 0 && ptr[len-1] == '\n') | |
1003 | --len; | |
1004 | ||
1005 | if ((arg_len = is_keyword(ptr, len, "setsync")) != 0) | |
1006 | uc->cmd = UC_SETSYNC; | |
1007 | else if ((arg_len = is_keyword(ptr, len, "settags")) != 0) | |
1008 | uc->cmd = UC_SETTAGS; | |
1009 | else if ((arg_len = is_keyword(ptr, len, "setverbose")) != 0) | |
1010 | uc->cmd = UC_SETVERBOSE; | |
1011 | else if ((arg_len = is_keyword(ptr, len, "setwide")) != 0) | |
1012 | uc->cmd = UC_SETWIDE; | |
1013 | #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT | |
1014 | else if ((arg_len = is_keyword(ptr, len, "setdebug")) != 0) | |
1015 | uc->cmd = UC_SETDEBUG; | |
1016 | #endif | |
1017 | else if ((arg_len = is_keyword(ptr, len, "setflag")) != 0) | |
1018 | uc->cmd = UC_SETFLAG; | |
1019 | else if ((arg_len = is_keyword(ptr, len, "resetdev")) != 0) | |
1020 | uc->cmd = UC_RESETDEV; | |
1021 | else if ((arg_len = is_keyword(ptr, len, "cleardev")) != 0) | |
1022 | uc->cmd = UC_CLEARDEV; | |
1023 | else | |
1024 | arg_len = 0; | |
1025 | ||
1026 | #ifdef DEBUG_PROC_INFO | |
1027 | printk("sym_user_command: arg_len=%d, cmd=%ld\n", arg_len, uc->cmd); | |
1028 | #endif | |
1029 | ||
1030 | if (!arg_len) | |
1031 | return -EINVAL; | |
1032 | ptr += arg_len; len -= arg_len; | |
1033 | ||
1034 | switch(uc->cmd) { | |
1035 | case UC_SETSYNC: | |
1036 | case UC_SETTAGS: | |
1037 | case UC_SETWIDE: | |
1038 | case UC_SETFLAG: | |
1039 | case UC_RESETDEV: | |
1040 | case UC_CLEARDEV: | |
1041 | SKIP_SPACES(ptr, len); | |
1042 | if ((arg_len = is_keyword(ptr, len, "all")) != 0) { | |
1043 | ptr += arg_len; len -= arg_len; | |
1044 | uc->target = ~0; | |
1045 | } else { | |
1046 | GET_INT_ARG(ptr, len, target); | |
1047 | uc->target = (1<<target); | |
1048 | #ifdef DEBUG_PROC_INFO | |
1049 | printk("sym_user_command: target=%ld\n", target); | |
1050 | #endif | |
1051 | } | |
1052 | break; | |
1053 | } | |
1054 | ||
1055 | switch(uc->cmd) { | |
1056 | case UC_SETVERBOSE: | |
1057 | case UC_SETSYNC: | |
1058 | case UC_SETTAGS: | |
1059 | case UC_SETWIDE: | |
1060 | SKIP_SPACES(ptr, len); | |
1061 | GET_INT_ARG(ptr, len, uc->data); | |
1062 | #ifdef DEBUG_PROC_INFO | |
1063 | printk("sym_user_command: data=%ld\n", uc->data); | |
1064 | #endif | |
1065 | break; | |
1066 | #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT | |
1067 | case UC_SETDEBUG: | |
1068 | while (len > 0) { | |
1069 | SKIP_SPACES(ptr, len); | |
1070 | if ((arg_len = is_keyword(ptr, len, "alloc"))) | |
1071 | uc->data |= DEBUG_ALLOC; | |
1072 | else if ((arg_len = is_keyword(ptr, len, "phase"))) | |
1073 | uc->data |= DEBUG_PHASE; | |
1074 | else if ((arg_len = is_keyword(ptr, len, "queue"))) | |
1075 | uc->data |= DEBUG_QUEUE; | |
1076 | else if ((arg_len = is_keyword(ptr, len, "result"))) | |
1077 | uc->data |= DEBUG_RESULT; | |
1078 | else if ((arg_len = is_keyword(ptr, len, "scatter"))) | |
1079 | uc->data |= DEBUG_SCATTER; | |
1080 | else if ((arg_len = is_keyword(ptr, len, "script"))) | |
1081 | uc->data |= DEBUG_SCRIPT; | |
1082 | else if ((arg_len = is_keyword(ptr, len, "tiny"))) | |
1083 | uc->data |= DEBUG_TINY; | |
1084 | else if ((arg_len = is_keyword(ptr, len, "timing"))) | |
1085 | uc->data |= DEBUG_TIMING; | |
1086 | else if ((arg_len = is_keyword(ptr, len, "nego"))) | |
1087 | uc->data |= DEBUG_NEGO; | |
1088 | else if ((arg_len = is_keyword(ptr, len, "tags"))) | |
1089 | uc->data |= DEBUG_TAGS; | |
1090 | else if ((arg_len = is_keyword(ptr, len, "pointer"))) | |
1091 | uc->data |= DEBUG_POINTER; | |
1092 | else | |
1093 | return -EINVAL; | |
1094 | ptr += arg_len; len -= arg_len; | |
1095 | } | |
1096 | #ifdef DEBUG_PROC_INFO | |
1097 | printk("sym_user_command: data=%ld\n", uc->data); | |
1098 | #endif | |
1099 | break; | |
1100 | #endif /* SYM_LINUX_DEBUG_CONTROL_SUPPORT */ | |
1101 | case UC_SETFLAG: | |
1102 | while (len > 0) { | |
1103 | SKIP_SPACES(ptr, len); | |
1104 | if ((arg_len = is_keyword(ptr, len, "no_disc"))) | |
1105 | uc->data &= ~SYM_DISC_ENABLED; | |
1106 | else | |
1107 | return -EINVAL; | |
1108 | ptr += arg_len; len -= arg_len; | |
1109 | } | |
1110 | break; | |
1111 | default: | |
1112 | break; | |
1113 | } | |
1114 | ||
1115 | if (len) | |
1116 | return -EINVAL; | |
1117 | else { | |
1118 | unsigned long flags; | |
1119 | ||
5111eefa MW |
1120 | spin_lock_irqsave(shost->host_lock, flags); |
1121 | sym_exec_user_command(np, uc); | |
1122 | spin_unlock_irqrestore(shost->host_lock, flags); | |
1da177e4 LT |
1123 | } |
1124 | return length; | |
1125 | } | |
1126 | ||
1127 | #endif /* SYM_LINUX_USER_COMMAND_SUPPORT */ | |
1128 | ||
1129 | ||
1130 | #ifdef SYM_LINUX_USER_INFO_SUPPORT | |
1131 | /* | |
1132 | * Informations through the proc file system. | |
1133 | */ | |
1134 | struct info_str { | |
1135 | char *buffer; | |
1136 | int length; | |
1137 | int offset; | |
1138 | int pos; | |
1139 | }; | |
1140 | ||
1141 | static void copy_mem_info(struct info_str *info, char *data, int len) | |
1142 | { | |
1143 | if (info->pos + len > info->length) | |
1144 | len = info->length - info->pos; | |
1145 | ||
1146 | if (info->pos + len < info->offset) { | |
1147 | info->pos += len; | |
1148 | return; | |
1149 | } | |
1150 | if (info->pos < info->offset) { | |
1151 | data += (info->offset - info->pos); | |
1152 | len -= (info->offset - info->pos); | |
1153 | } | |
1154 | ||
1155 | if (len > 0) { | |
1156 | memcpy(info->buffer + info->pos, data, len); | |
1157 | info->pos += len; | |
1158 | } | |
1159 | } | |
1160 | ||
1161 | static int copy_info(struct info_str *info, char *fmt, ...) | |
1162 | { | |
1163 | va_list args; | |
1164 | char buf[81]; | |
1165 | int len; | |
1166 | ||
1167 | va_start(args, fmt); | |
1168 | len = vsprintf(buf, fmt, args); | |
1169 | va_end(args); | |
1170 | ||
1171 | copy_mem_info(info, buf, len); | |
1172 | return len; | |
1173 | } | |
1174 | ||
1175 | /* | |
1176 | * Copy formatted information into the input buffer. | |
1177 | */ | |
5111eefa | 1178 | static int sym_host_info(struct Scsi_Host *shost, char *ptr, off_t offset, int len) |
1da177e4 | 1179 | { |
5111eefa MW |
1180 | struct sym_data *sym_data = shost_priv(shost); |
1181 | struct pci_dev *pdev = sym_data->pdev; | |
1182 | struct sym_hcb *np = sym_data->ncb; | |
1da177e4 LT |
1183 | struct info_str info; |
1184 | ||
1185 | info.buffer = ptr; | |
1186 | info.length = len; | |
1187 | info.offset = offset; | |
1188 | info.pos = 0; | |
1189 | ||
1190 | copy_info(&info, "Chip " NAME53C "%s, device id 0x%x, " | |
bd678450 | 1191 | "revision id 0x%x\n", np->s.chip_name, |
5111eefa | 1192 | pdev->device, pdev->revision); |
8022fbda | 1193 | copy_info(&info, "At PCI address %s, IRQ %u\n", |
5111eefa | 1194 | pci_name(pdev), pdev->irq); |
1da177e4 LT |
1195 | copy_info(&info, "Min. period factor %d, %s SCSI BUS%s\n", |
1196 | (int) (np->minsync_dt ? np->minsync_dt : np->minsync), | |
1197 | np->maxwide ? "Wide" : "Narrow", | |
1198 | np->minsync_dt ? ", DT capable" : ""); | |
1199 | ||
1200 | copy_info(&info, "Max. started commands %d, " | |
1201 | "max. commands per LUN %d\n", | |
1202 | SYM_CONF_MAX_START, SYM_CONF_MAX_TAG); | |
1203 | ||
1204 | return info.pos > info.offset? info.pos - info.offset : 0; | |
1205 | } | |
1206 | #endif /* SYM_LINUX_USER_INFO_SUPPORT */ | |
1207 | ||
1208 | /* | |
1209 | * Entry point of the scsi proc fs of the driver. | |
1210 | * - func = 0 means read (returns adapter infos) | |
1211 | * - func = 1 means write (not yet merget from sym53c8xx) | |
1212 | */ | |
5111eefa | 1213 | static int sym53c8xx_proc_info(struct Scsi_Host *shost, char *buffer, |
1da177e4 LT |
1214 | char **start, off_t offset, int length, int func) |
1215 | { | |
1da177e4 LT |
1216 | int retv; |
1217 | ||
1218 | if (func) { | |
1219 | #ifdef SYM_LINUX_USER_COMMAND_SUPPORT | |
5111eefa | 1220 | retv = sym_user_command(shost, buffer, length); |
1da177e4 LT |
1221 | #else |
1222 | retv = -EINVAL; | |
1223 | #endif | |
1224 | } else { | |
1225 | if (start) | |
1226 | *start = buffer; | |
1227 | #ifdef SYM_LINUX_USER_INFO_SUPPORT | |
5111eefa | 1228 | retv = sym_host_info(shost, buffer, offset, length); |
1da177e4 LT |
1229 | #else |
1230 | retv = -EINVAL; | |
1231 | #endif | |
1232 | } | |
1233 | ||
1234 | return retv; | |
1235 | } | |
1236 | #endif /* SYM_LINUX_PROC_INFO_SUPPORT */ | |
1237 | ||
1238 | /* | |
1239 | * Free controller resources. | |
1240 | */ | |
1241 | static void sym_free_resources(struct sym_hcb *np, struct pci_dev *pdev) | |
1242 | { | |
1243 | /* | |
1244 | * Free O/S specific resources. | |
1245 | */ | |
f363abff | 1246 | if (pdev->irq) |
7ee2413c | 1247 | free_irq(pdev->irq, np->s.host); |
1da177e4 LT |
1248 | if (np->s.ioaddr) |
1249 | pci_iounmap(pdev, np->s.ioaddr); | |
1250 | if (np->s.ramaddr) | |
1251 | pci_iounmap(pdev, np->s.ramaddr); | |
1252 | /* | |
1253 | * Free O/S independent resources. | |
1254 | */ | |
1255 | sym_hcb_free(np); | |
1256 | ||
1257 | sym_mfree_dma(np, sizeof(*np), "HCB"); | |
1258 | } | |
1259 | ||
1da177e4 LT |
1260 | /* |
1261 | * Host attach and initialisations. | |
1262 | * | |
1263 | * Allocate host data and ncb structure. | |
1264 | * Remap MMIO region. | |
1265 | * Do chip initialization. | |
1266 | * If all is OK, install interrupt handling and | |
1267 | * start the timer daemon. | |
1268 | */ | |
1269 | static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt, | |
1270 | int unit, struct sym_device *dev) | |
1271 | { | |
99c9e0a1 | 1272 | struct sym_data *sym_data; |
1da177e4 | 1273 | struct sym_hcb *np = NULL; |
99c9e0a1 | 1274 | struct Scsi_Host *shost; |
1da177e4 LT |
1275 | struct pci_dev *pdev = dev->pdev; |
1276 | unsigned long flags; | |
1277 | struct sym_fw *fw; | |
1278 | ||
8022fbda | 1279 | printk(KERN_INFO "sym%d: <%s> rev 0x%x at pci %s irq %u\n", |
bd678450 | 1280 | unit, dev->chip.name, pdev->revision, pci_name(pdev), |
8022fbda | 1281 | pdev->irq); |
1da177e4 LT |
1282 | |
1283 | /* | |
1284 | * Get the firmware for this chip. | |
1285 | */ | |
1286 | fw = sym_find_firmware(&dev->chip); | |
1287 | if (!fw) | |
99c9e0a1 | 1288 | return NULL; |
1da177e4 | 1289 | |
99c9e0a1 MW |
1290 | shost = scsi_host_alloc(tpnt, sizeof(*sym_data)); |
1291 | if (!shost) | |
1292 | return NULL; | |
1293 | sym_data = shost_priv(shost); | |
1da177e4 LT |
1294 | |
1295 | /* | |
1296 | * Allocate immediately the host control block, | |
1297 | * since we are only expecting to succeed. :) | |
1298 | * We keep track in the HCB of all the resources that | |
1299 | * are to be released on error. | |
1300 | */ | |
1301 | np = __sym_calloc_dma(&pdev->dev, sizeof(*np), "HCB"); | |
1302 | if (!np) | |
1303 | goto attach_failed; | |
1da177e4 | 1304 | np->bus_dmat = &pdev->dev; /* Result in 1 DMA pool per HBA */ |
99c9e0a1 MW |
1305 | sym_data->ncb = np; |
1306 | sym_data->pdev = pdev; | |
1307 | np->s.host = shost; | |
1da177e4 | 1308 | |
5111eefa | 1309 | pci_set_drvdata(pdev, shost); |
1da177e4 LT |
1310 | |
1311 | /* | |
1312 | * Copy some useful infos to the HCB. | |
1313 | */ | |
1314 | np->hcb_ba = vtobus(np); | |
1315 | np->verbose = sym_driver_setup.verbose; | |
1da177e4 | 1316 | np->s.unit = unit; |
1da177e4 LT |
1317 | np->features = dev->chip.features; |
1318 | np->clock_divn = dev->chip.nr_divisor; | |
1319 | np->maxoffs = dev->chip.offset_max; | |
1320 | np->maxburst = dev->chip.burst_max; | |
1321 | np->myaddr = dev->host_id; | |
1322 | ||
1323 | /* | |
1324 | * Edit its name. | |
1325 | */ | |
1326 | strlcpy(np->s.chip_name, dev->chip.name, sizeof(np->s.chip_name)); | |
1327 | sprintf(np->s.inst_name, "sym%d", np->s.unit); | |
1328 | ||
4d85b471 | 1329 | if ((SYM_CONF_DMA_ADDRESSING_MODE > 0) && (np->features & FE_DAC) && |
5111eefa | 1330 | !pci_set_dma_mask(pdev, DMA_DAC_MASK)) { |
4d85b471 | 1331 | set_dac(np); |
5111eefa | 1332 | } else if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) { |
4d85b471 | 1333 | printf_warning("%s: No suitable DMA available\n", sym_name(np)); |
1da177e4 | 1334 | goto attach_failed; |
4d85b471 | 1335 | } |
1da177e4 LT |
1336 | |
1337 | /* | |
1338 | * Try to map the controller chip to | |
1339 | * virtual and physical memory. | |
1340 | */ | |
1341 | np->mmio_ba = (u32)dev->mmio_base; | |
1342 | np->s.ioaddr = dev->s.ioaddr; | |
1343 | np->s.ramaddr = dev->s.ramaddr; | |
1da177e4 LT |
1344 | |
1345 | /* | |
1346 | * Map on-chip RAM if present and supported. | |
1347 | */ | |
1348 | if (!(np->features & FE_RAM)) | |
1349 | dev->ram_base = 0; | |
8637baa3 | 1350 | if (dev->ram_base) |
1da177e4 | 1351 | np->ram_ba = (u32)dev->ram_base; |
1da177e4 | 1352 | |
99c9e0a1 | 1353 | if (sym_hcb_attach(shost, fw, dev->nvram)) |
1da177e4 LT |
1354 | goto attach_failed; |
1355 | ||
1356 | /* | |
1357 | * Install the interrupt handler. | |
1358 | * If we synchonize the C code with SCRIPTS on interrupt, | |
1359 | * we do not want to share the INTR line at all. | |
1360 | */ | |
99c9e0a1 MW |
1361 | if (request_irq(pdev->irq, sym53c8xx_intr, IRQF_SHARED, NAME53C8XX, |
1362 | shost)) { | |
8022fbda | 1363 | printf_err("%s: request irq %u failure\n", |
1da177e4 LT |
1364 | sym_name(np), pdev->irq); |
1365 | goto attach_failed; | |
1366 | } | |
1da177e4 LT |
1367 | |
1368 | /* | |
1369 | * After SCSI devices have been opened, we cannot | |
1370 | * reset the bus safely, so we do it here. | |
1371 | */ | |
99c9e0a1 | 1372 | spin_lock_irqsave(shost->host_lock, flags); |
1da177e4 LT |
1373 | if (sym_reset_scsi_bus(np, 0)) |
1374 | goto reset_failed; | |
1375 | ||
1376 | /* | |
1377 | * Start the SCRIPTS. | |
1378 | */ | |
5111eefa | 1379 | sym_start_up(shost, 1); |
1da177e4 LT |
1380 | |
1381 | /* | |
1382 | * Start the timer daemon | |
1383 | */ | |
1384 | init_timer(&np->s.timer); | |
1385 | np->s.timer.data = (unsigned long) np; | |
1386 | np->s.timer.function = sym53c8xx_timer; | |
1387 | np->s.lasttime=0; | |
1388 | sym_timer (np); | |
1389 | ||
1390 | /* | |
1391 | * Fill Linux host instance structure | |
1392 | * and return success. | |
1393 | */ | |
99c9e0a1 MW |
1394 | shost->max_channel = 0; |
1395 | shost->this_id = np->myaddr; | |
1396 | shost->max_id = np->maxwide ? 16 : 8; | |
1397 | shost->max_lun = SYM_CONF_MAX_LUN; | |
1398 | shost->unique_id = pci_resource_start(pdev, 0); | |
1399 | shost->cmd_per_lun = SYM_CONF_MAX_TAG; | |
1400 | shost->can_queue = (SYM_CONF_MAX_START-2); | |
1401 | shost->sg_tablesize = SYM_CONF_MAX_SG; | |
1402 | shost->max_cmd_len = 16; | |
1da177e4 | 1403 | BUG_ON(sym2_transport_template == NULL); |
99c9e0a1 | 1404 | shost->transportt = sym2_transport_template; |
1da177e4 | 1405 | |
34996acc | 1406 | /* 53c896 rev 1 errata: DMA may not cross 16MB boundary */ |
bd678450 | 1407 | if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && pdev->revision < 2) |
99c9e0a1 | 1408 | shost->dma_boundary = 0xFFFFFF; |
34996acc | 1409 | |
99c9e0a1 | 1410 | spin_unlock_irqrestore(shost->host_lock, flags); |
1da177e4 | 1411 | |
99c9e0a1 | 1412 | return shost; |
1da177e4 LT |
1413 | |
1414 | reset_failed: | |
1415 | printf_err("%s: FATAL ERROR: CHECK SCSI BUS - CABLES, " | |
1416 | "TERMINATION, DEVICE POWER etc.!\n", sym_name(np)); | |
99c9e0a1 | 1417 | spin_unlock_irqrestore(shost->host_lock, flags); |
1da177e4 | 1418 | attach_failed: |
99c9e0a1 | 1419 | if (!shost) |
1da177e4 LT |
1420 | return NULL; |
1421 | printf_info("%s: giving up ...\n", sym_name(np)); | |
1422 | if (np) | |
1423 | sym_free_resources(np, pdev); | |
99c9e0a1 | 1424 | scsi_host_put(shost); |
1da177e4 LT |
1425 | |
1426 | return NULL; | |
1427 | } | |
1428 | ||
1429 | ||
1430 | /* | |
1431 | * Detect and try to read SYMBIOS and TEKRAM NVRAM. | |
1432 | */ | |
1433 | #if SYM_CONF_NVRAM_SUPPORT | |
1434 | static void __devinit sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) | |
1435 | { | |
1436 | devp->nvram = nvp; | |
1da177e4 LT |
1437 | nvp->type = 0; |
1438 | ||
1439 | sym_read_nvram(devp, nvp); | |
1440 | } | |
1441 | #else | |
1442 | static inline void sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) | |
1443 | { | |
1444 | } | |
1445 | #endif /* SYM_CONF_NVRAM_SUPPORT */ | |
1446 | ||
1447 | static int __devinit sym_check_supported(struct sym_device *device) | |
1448 | { | |
1449 | struct sym_chip *chip; | |
1450 | struct pci_dev *pdev = device->pdev; | |
1da177e4 LT |
1451 | unsigned long io_port = pci_resource_start(pdev, 0); |
1452 | int i; | |
1453 | ||
1454 | /* | |
1455 | * If user excluded this chip, do not initialize it. | |
1456 | * I hate this code so much. Must kill it. | |
1457 | */ | |
1458 | if (io_port) { | |
1459 | for (i = 0 ; i < 8 ; i++) { | |
1460 | if (sym_driver_setup.excludes[i] == io_port) | |
1461 | return -ENODEV; | |
1462 | } | |
1463 | } | |
1464 | ||
1465 | /* | |
1466 | * Check if the chip is supported. Then copy the chip description | |
1467 | * to our device structure so we can make it match the actual device | |
1468 | * and options. | |
1469 | */ | |
bd678450 | 1470 | chip = sym_lookup_chip_table(pdev->device, pdev->revision); |
1da177e4 LT |
1471 | if (!chip) { |
1472 | dev_info(&pdev->dev, "device not supported\n"); | |
1473 | return -ENODEV; | |
1474 | } | |
1475 | memcpy(&device->chip, chip, sizeof(device->chip)); | |
1da177e4 LT |
1476 | |
1477 | return 0; | |
1478 | } | |
1479 | ||
1480 | /* | |
1481 | * Ignore Symbios chips controlled by various RAID controllers. | |
1482 | * These controllers set value 0x52414944 at RAM end - 16. | |
1483 | */ | |
1484 | static int __devinit sym_check_raid(struct sym_device *device) | |
1485 | { | |
1486 | unsigned int ram_size, ram_val; | |
1487 | ||
1488 | if (!device->s.ramaddr) | |
1489 | return 0; | |
1490 | ||
1491 | if (device->chip.features & FE_RAM8K) | |
1492 | ram_size = 8192; | |
1493 | else | |
1494 | ram_size = 4096; | |
1495 | ||
1496 | ram_val = readl(device->s.ramaddr + ram_size - 16); | |
1497 | if (ram_val != 0x52414944) | |
1498 | return 0; | |
1499 | ||
1500 | dev_info(&device->pdev->dev, | |
1501 | "not initializing, driven by RAID controller.\n"); | |
1502 | return -ENODEV; | |
1503 | } | |
1504 | ||
1505 | static int __devinit sym_set_workarounds(struct sym_device *device) | |
1506 | { | |
1507 | struct sym_chip *chip = &device->chip; | |
1508 | struct pci_dev *pdev = device->pdev; | |
1509 | u_short status_reg; | |
1510 | ||
1511 | /* | |
1512 | * (ITEM 12 of a DEL about the 896 I haven't yet). | |
1513 | * We must ensure the chip will use WRITE AND INVALIDATE. | |
1514 | * The revision number limit is for now arbitrary. | |
1515 | */ | |
bd678450 | 1516 | if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && pdev->revision < 0x4) { |
1da177e4 LT |
1517 | chip->features |= (FE_WRIE | FE_CLSE); |
1518 | } | |
1519 | ||
1520 | /* If the chip can do Memory Write Invalidate, enable it */ | |
1521 | if (chip->features & FE_WRIE) { | |
1522 | if (pci_set_mwi(pdev)) | |
1523 | return -ENODEV; | |
1524 | } | |
1525 | ||
1526 | /* | |
1527 | * Work around for errant bit in 895A. The 66Mhz | |
1528 | * capable bit is set erroneously. Clear this bit. | |
1529 | * (Item 1 DEL 533) | |
1530 | * | |
1531 | * Make sure Config space and Features agree. | |
1532 | * | |
1533 | * Recall: writes are not normal to status register - | |
1534 | * write a 1 to clear and a 0 to leave unchanged. | |
1535 | * Can only reset bits. | |
1536 | */ | |
1537 | pci_read_config_word(pdev, PCI_STATUS, &status_reg); | |
1538 | if (chip->features & FE_66MHZ) { | |
1539 | if (!(status_reg & PCI_STATUS_66MHZ)) | |
1540 | chip->features &= ~FE_66MHZ; | |
1541 | } else { | |
1542 | if (status_reg & PCI_STATUS_66MHZ) { | |
1543 | status_reg = PCI_STATUS_66MHZ; | |
1544 | pci_write_config_word(pdev, PCI_STATUS, status_reg); | |
1545 | pci_read_config_word(pdev, PCI_STATUS, &status_reg); | |
1546 | } | |
1547 | } | |
1548 | ||
1549 | return 0; | |
1550 | } | |
1551 | ||
1552 | /* | |
1553 | * Read and check the PCI configuration for any detected NCR | |
1554 | * boards and save data for attaching after all boards have | |
1555 | * been detected. | |
1556 | */ | |
1557 | static void __devinit | |
1558 | sym_init_device(struct pci_dev *pdev, struct sym_device *device) | |
1559 | { | |
b6d105d7 MW |
1560 | int i = 2; |
1561 | struct pci_bus_region bus_addr; | |
1da177e4 LT |
1562 | |
1563 | device->host_id = SYM_SETUP_HOST_ID; | |
1564 | device->pdev = pdev; | |
1565 | ||
b6d105d7 MW |
1566 | pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[1]); |
1567 | device->mmio_base = bus_addr.start; | |
1568 | ||
1569 | /* | |
1570 | * If the BAR is 64-bit, resource 2 will be occupied by the | |
1571 | * upper 32 bits | |
1572 | */ | |
1573 | if (!pdev->resource[i].flags) | |
1574 | i++; | |
1575 | pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[i]); | |
1576 | device->ram_base = bus_addr.start; | |
1da177e4 | 1577 | |
1f61d824 | 1578 | #ifdef CONFIG_SCSI_SYM53C8XX_MMIO |
1da177e4 LT |
1579 | if (device->mmio_base) |
1580 | device->s.ioaddr = pci_iomap(pdev, 1, | |
1581 | pci_resource_len(pdev, 1)); | |
1582 | #endif | |
1583 | if (!device->s.ioaddr) | |
1584 | device->s.ioaddr = pci_iomap(pdev, 0, | |
1585 | pci_resource_len(pdev, 0)); | |
1586 | if (device->ram_base) | |
1587 | device->s.ramaddr = pci_iomap(pdev, i, | |
1588 | pci_resource_len(pdev, i)); | |
1589 | } | |
1590 | ||
1591 | /* | |
1592 | * The NCR PQS and PDS cards are constructed as a DEC bridge | |
1593 | * behind which sits a proprietary NCR memory controller and | |
1594 | * either four or two 53c875s as separate devices. We can tell | |
1595 | * if an 875 is part of a PQS/PDS or not since if it is, it will | |
1596 | * be on the same bus as the memory controller. In its usual | |
1597 | * mode of operation, the 875s are slaved to the memory | |
1598 | * controller for all transfers. To operate with the Linux | |
1599 | * driver, the memory controller is disabled and the 875s | |
1600 | * freed to function independently. The only wrinkle is that | |
1601 | * the preset SCSI ID (which may be zero) must be read in from | |
1602 | * a special configuration space register of the 875. | |
1603 | */ | |
1604 | static void sym_config_pqs(struct pci_dev *pdev, struct sym_device *sym_dev) | |
1605 | { | |
1606 | int slot; | |
1607 | u8 tmp; | |
1608 | ||
1609 | for (slot = 0; slot < 256; slot++) { | |
1610 | struct pci_dev *memc = pci_get_slot(pdev->bus, slot); | |
1611 | ||
1612 | if (!memc || memc->vendor != 0x101a || memc->device == 0x0009) { | |
1613 | pci_dev_put(memc); | |
1614 | continue; | |
1615 | } | |
1616 | ||
1617 | /* bit 1: allow individual 875 configuration */ | |
1618 | pci_read_config_byte(memc, 0x44, &tmp); | |
1619 | if ((tmp & 0x2) == 0) { | |
1620 | tmp |= 0x2; | |
1621 | pci_write_config_byte(memc, 0x44, tmp); | |
1622 | } | |
1623 | ||
1624 | /* bit 2: drive individual 875 interrupts to the bus */ | |
1625 | pci_read_config_byte(memc, 0x45, &tmp); | |
1626 | if ((tmp & 0x4) == 0) { | |
1627 | tmp |= 0x4; | |
1628 | pci_write_config_byte(memc, 0x45, tmp); | |
1629 | } | |
1630 | ||
1631 | pci_dev_put(memc); | |
1632 | break; | |
1633 | } | |
1634 | ||
1635 | pci_read_config_byte(pdev, 0x84, &tmp); | |
1636 | sym_dev->host_id = tmp; | |
1637 | } | |
1638 | ||
1639 | /* | |
1640 | * Called before unloading the module. | |
1641 | * Detach the host. | |
1642 | * We have to free resources and halt the NCR chip. | |
1643 | */ | |
5111eefa | 1644 | static int sym_detach(struct Scsi_Host *shost, struct pci_dev *pdev) |
1da177e4 | 1645 | { |
5111eefa | 1646 | struct sym_hcb *np = sym_get_hcb(shost); |
1da177e4 LT |
1647 | printk("%s: detaching ...\n", sym_name(np)); |
1648 | ||
1649 | del_timer_sync(&np->s.timer); | |
1650 | ||
1651 | /* | |
1652 | * Reset NCR chip. | |
1653 | * We should use sym_soft_reset(), but we don't want to do | |
1654 | * so, since we may not be safe if interrupts occur. | |
1655 | */ | |
1656 | printk("%s: resetting chip\n", sym_name(np)); | |
1657 | OUTB(np, nc_istat, SRST); | |
53222b90 | 1658 | INB(np, nc_mbox1); |
1da177e4 LT |
1659 | udelay(10); |
1660 | OUTB(np, nc_istat, 0); | |
1661 | ||
1662 | sym_free_resources(np, pdev); | |
1663 | ||
1664 | return 1; | |
1665 | } | |
1666 | ||
1667 | /* | |
1668 | * Driver host template. | |
1669 | */ | |
1670 | static struct scsi_host_template sym2_template = { | |
1671 | .module = THIS_MODULE, | |
1672 | .name = "sym53c8xx", | |
1673 | .info = sym53c8xx_info, | |
1674 | .queuecommand = sym53c8xx_queue_command, | |
1675 | .slave_alloc = sym53c8xx_slave_alloc, | |
1676 | .slave_configure = sym53c8xx_slave_configure, | |
84e203a2 | 1677 | .slave_destroy = sym53c8xx_slave_destroy, |
1da177e4 LT |
1678 | .eh_abort_handler = sym53c8xx_eh_abort_handler, |
1679 | .eh_device_reset_handler = sym53c8xx_eh_device_reset_handler, | |
1680 | .eh_bus_reset_handler = sym53c8xx_eh_bus_reset_handler, | |
1681 | .eh_host_reset_handler = sym53c8xx_eh_host_reset_handler, | |
1682 | .this_id = 7, | |
14ac8bf5 MW |
1683 | .use_clustering = ENABLE_CLUSTERING, |
1684 | .max_sectors = 0xFFFF, | |
1da177e4 LT |
1685 | #ifdef SYM_LINUX_PROC_INFO_SUPPORT |
1686 | .proc_info = sym53c8xx_proc_info, | |
1687 | .proc_name = NAME53C8XX, | |
1688 | #endif | |
1689 | }; | |
1690 | ||
1691 | static int attach_count; | |
1692 | ||
1693 | static int __devinit sym2_probe(struct pci_dev *pdev, | |
1694 | const struct pci_device_id *ent) | |
1695 | { | |
1696 | struct sym_device sym_dev; | |
1697 | struct sym_nvram nvram; | |
99c9e0a1 | 1698 | struct Scsi_Host *shost; |
1da177e4 LT |
1699 | |
1700 | memset(&sym_dev, 0, sizeof(sym_dev)); | |
1701 | memset(&nvram, 0, sizeof(nvram)); | |
1702 | ||
1703 | if (pci_enable_device(pdev)) | |
1704 | goto leave; | |
1705 | ||
1706 | pci_set_master(pdev); | |
1707 | ||
1708 | if (pci_request_regions(pdev, NAME53C8XX)) | |
1709 | goto disable; | |
1710 | ||
1711 | sym_init_device(pdev, &sym_dev); | |
1712 | if (sym_check_supported(&sym_dev)) | |
1713 | goto free; | |
1714 | ||
1715 | if (sym_check_raid(&sym_dev)) | |
1716 | goto leave; /* Don't disable the device */ | |
1717 | ||
1718 | if (sym_set_workarounds(&sym_dev)) | |
1719 | goto free; | |
1720 | ||
1721 | sym_config_pqs(pdev, &sym_dev); | |
1722 | ||
1723 | sym_get_nvram(&sym_dev, &nvram); | |
1724 | ||
99c9e0a1 MW |
1725 | shost = sym_attach(&sym2_template, attach_count, &sym_dev); |
1726 | if (!shost) | |
1da177e4 LT |
1727 | goto free; |
1728 | ||
99c9e0a1 | 1729 | if (scsi_add_host(shost, &pdev->dev)) |
1da177e4 | 1730 | goto detach; |
99c9e0a1 | 1731 | scsi_scan_host(shost); |
1da177e4 LT |
1732 | |
1733 | attach_count++; | |
1734 | ||
1735 | return 0; | |
1736 | ||
1737 | detach: | |
1738 | sym_detach(pci_get_drvdata(pdev), pdev); | |
1739 | free: | |
1740 | pci_release_regions(pdev); | |
1741 | disable: | |
1742 | pci_disable_device(pdev); | |
1743 | leave: | |
1744 | return -ENODEV; | |
1745 | } | |
1746 | ||
864473bb | 1747 | static void sym2_remove(struct pci_dev *pdev) |
1da177e4 | 1748 | { |
5111eefa | 1749 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
1da177e4 | 1750 | |
5111eefa MW |
1751 | scsi_remove_host(shost); |
1752 | scsi_host_put(shost); | |
1753 | sym_detach(shost, pdev); | |
1da177e4 LT |
1754 | pci_release_regions(pdev); |
1755 | pci_disable_device(pdev); | |
1756 | ||
1757 | attach_count--; | |
1758 | } | |
1759 | ||
d68cd759 LV |
1760 | /** |
1761 | * sym2_io_error_detected() - called when PCI error is detected | |
1762 | * @pdev: pointer to PCI device | |
1763 | * @state: current state of the PCI slot | |
1764 | */ | |
1765 | static pci_ers_result_t sym2_io_error_detected(struct pci_dev *pdev, | |
1766 | enum pci_channel_state state) | |
1767 | { | |
1768 | /* If slot is permanently frozen, turn everything off */ | |
1769 | if (state == pci_channel_io_perm_failure) { | |
1770 | sym2_remove(pdev); | |
1771 | return PCI_ERS_RESULT_DISCONNECT; | |
1772 | } | |
1773 | ||
1774 | disable_irq(pdev->irq); | |
1775 | pci_disable_device(pdev); | |
1776 | ||
1777 | /* Request that MMIO be enabled, so register dump can be taken. */ | |
1778 | return PCI_ERS_RESULT_CAN_RECOVER; | |
1779 | } | |
1780 | ||
1781 | /** | |
1782 | * sym2_io_slot_dump - Enable MMIO and dump debug registers | |
1783 | * @pdev: pointer to PCI device | |
1784 | */ | |
1785 | static pci_ers_result_t sym2_io_slot_dump(struct pci_dev *pdev) | |
1786 | { | |
5111eefa | 1787 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
d68cd759 | 1788 | |
5111eefa | 1789 | sym_dump_registers(shost); |
d68cd759 LV |
1790 | |
1791 | /* Request a slot reset. */ | |
1792 | return PCI_ERS_RESULT_NEED_RESET; | |
1793 | } | |
1794 | ||
1795 | /** | |
1796 | * sym2_reset_workarounds - hardware-specific work-arounds | |
1797 | * | |
1798 | * This routine is similar to sym_set_workarounds(), except | |
1799 | * that, at this point, we already know that the device was | |
1800 | * succesfully intialized at least once before, and so most | |
1801 | * of the steps taken there are un-needed here. | |
1802 | */ | |
1803 | static void sym2_reset_workarounds(struct pci_dev *pdev) | |
1804 | { | |
d68cd759 LV |
1805 | u_short status_reg; |
1806 | struct sym_chip *chip; | |
1807 | ||
bd678450 | 1808 | chip = sym_lookup_chip_table(pdev->device, pdev->revision); |
d68cd759 LV |
1809 | |
1810 | /* Work around for errant bit in 895A, in a fashion | |
1811 | * similar to what is done in sym_set_workarounds(). | |
1812 | */ | |
1813 | pci_read_config_word(pdev, PCI_STATUS, &status_reg); | |
1814 | if (!(chip->features & FE_66MHZ) && (status_reg & PCI_STATUS_66MHZ)) { | |
1815 | status_reg = PCI_STATUS_66MHZ; | |
1816 | pci_write_config_word(pdev, PCI_STATUS, status_reg); | |
1817 | pci_read_config_word(pdev, PCI_STATUS, &status_reg); | |
1818 | } | |
1819 | } | |
1820 | ||
1821 | /** | |
1822 | * sym2_io_slot_reset() - called when the pci bus has been reset. | |
1823 | * @pdev: pointer to PCI device | |
1824 | * | |
1825 | * Restart the card from scratch. | |
1826 | */ | |
1827 | static pci_ers_result_t sym2_io_slot_reset(struct pci_dev *pdev) | |
1828 | { | |
5111eefa MW |
1829 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
1830 | struct sym_hcb *np = sym_get_hcb(shost); | |
d68cd759 LV |
1831 | |
1832 | printk(KERN_INFO "%s: recovering from a PCI slot reset\n", | |
1833 | sym_name(np)); | |
1834 | ||
1835 | if (pci_enable_device(pdev)) { | |
1836 | printk(KERN_ERR "%s: Unable to enable after PCI reset\n", | |
1837 | sym_name(np)); | |
1838 | return PCI_ERS_RESULT_DISCONNECT; | |
1839 | } | |
1840 | ||
1841 | pci_set_master(pdev); | |
1842 | enable_irq(pdev->irq); | |
1843 | ||
1844 | /* If the chip can do Memory Write Invalidate, enable it */ | |
1845 | if (np->features & FE_WRIE) { | |
1846 | if (pci_set_mwi(pdev)) | |
1847 | return PCI_ERS_RESULT_DISCONNECT; | |
1848 | } | |
1849 | ||
1850 | /* Perform work-arounds, analogous to sym_set_workarounds() */ | |
1851 | sym2_reset_workarounds(pdev); | |
1852 | ||
1853 | /* Perform host reset only on one instance of the card */ | |
1854 | if (PCI_FUNC(pdev->devfn) == 0) { | |
1855 | if (sym_reset_scsi_bus(np, 0)) { | |
1856 | printk(KERN_ERR "%s: Unable to reset scsi host\n", | |
1857 | sym_name(np)); | |
1858 | return PCI_ERS_RESULT_DISCONNECT; | |
1859 | } | |
5111eefa | 1860 | sym_start_up(shost, 1); |
d68cd759 LV |
1861 | } |
1862 | ||
1863 | return PCI_ERS_RESULT_RECOVERED; | |
1864 | } | |
1865 | ||
1866 | /** | |
1867 | * sym2_io_resume() - resume normal ops after PCI reset | |
1868 | * @pdev: pointer to PCI device | |
1869 | * | |
1870 | * Called when the error recovery driver tells us that its | |
1871 | * OK to resume normal operation. Use completion to allow | |
1872 | * halted scsi ops to resume. | |
1873 | */ | |
1874 | static void sym2_io_resume(struct pci_dev *pdev) | |
1875 | { | |
5111eefa | 1876 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
99c9e0a1 | 1877 | struct sym_data *sym_data = shost_priv(shost); |
d68cd759 LV |
1878 | |
1879 | spin_lock_irq(shost->host_lock); | |
99c9e0a1 MW |
1880 | if (sym_data->io_reset) |
1881 | complete_all(sym_data->io_reset); | |
d68cd759 LV |
1882 | spin_unlock_irq(shost->host_lock); |
1883 | } | |
1884 | ||
1da177e4 LT |
1885 | static void sym2_get_signalling(struct Scsi_Host *shost) |
1886 | { | |
1887 | struct sym_hcb *np = sym_get_hcb(shost); | |
1888 | enum spi_signal_type type; | |
1889 | ||
1890 | switch (np->scsi_mode) { | |
1891 | case SMODE_SE: | |
1892 | type = SPI_SIGNAL_SE; | |
1893 | break; | |
1894 | case SMODE_LVD: | |
1895 | type = SPI_SIGNAL_LVD; | |
1896 | break; | |
1897 | case SMODE_HVD: | |
1898 | type = SPI_SIGNAL_HVD; | |
1899 | break; | |
1900 | default: | |
1901 | type = SPI_SIGNAL_UNKNOWN; | |
1902 | break; | |
1903 | } | |
1904 | spi_signalling(shost) = type; | |
1905 | } | |
1906 | ||
1907 | static void sym2_set_offset(struct scsi_target *starget, int offset) | |
1908 | { | |
1909 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1910 | struct sym_hcb *np = sym_get_hcb(shost); | |
1911 | struct sym_tcb *tp = &np->target[starget->id]; | |
1912 | ||
1913 | tp->tgoal.offset = offset; | |
1914 | tp->tgoal.check_nego = 1; | |
1915 | } | |
1916 | ||
1917 | static void sym2_set_period(struct scsi_target *starget, int period) | |
1918 | { | |
1919 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1920 | struct sym_hcb *np = sym_get_hcb(shost); | |
1921 | struct sym_tcb *tp = &np->target[starget->id]; | |
1922 | ||
e4862fed JB |
1923 | /* have to have DT for these transfers, but DT will also |
1924 | * set width, so check that this is allowed */ | |
1925 | if (period <= np->minsync && spi_width(starget)) | |
1da177e4 LT |
1926 | tp->tgoal.dt = 1; |
1927 | ||
1928 | tp->tgoal.period = period; | |
1929 | tp->tgoal.check_nego = 1; | |
1930 | } | |
1931 | ||
1932 | static void sym2_set_width(struct scsi_target *starget, int width) | |
1933 | { | |
1934 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1935 | struct sym_hcb *np = sym_get_hcb(shost); | |
1936 | struct sym_tcb *tp = &np->target[starget->id]; | |
1937 | ||
1938 | /* It is illegal to have DT set on narrow transfers. If DT is | |
1939 | * clear, we must also clear IU and QAS. */ | |
1940 | if (width == 0) | |
1941 | tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0; | |
1942 | ||
1943 | tp->tgoal.width = width; | |
1944 | tp->tgoal.check_nego = 1; | |
1945 | } | |
1946 | ||
1947 | static void sym2_set_dt(struct scsi_target *starget, int dt) | |
1948 | { | |
1949 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1950 | struct sym_hcb *np = sym_get_hcb(shost); | |
1951 | struct sym_tcb *tp = &np->target[starget->id]; | |
1952 | ||
1953 | /* We must clear QAS and IU if DT is clear */ | |
1954 | if (dt) | |
1955 | tp->tgoal.dt = 1; | |
1956 | else | |
1957 | tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0; | |
1958 | tp->tgoal.check_nego = 1; | |
1959 | } | |
1960 | ||
8b2f8138 | 1961 | #if 0 |
1da177e4 LT |
1962 | static void sym2_set_iu(struct scsi_target *starget, int iu) |
1963 | { | |
1964 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1965 | struct sym_hcb *np = sym_get_hcb(shost); | |
1966 | struct sym_tcb *tp = &np->target[starget->id]; | |
1967 | ||
1968 | if (iu) | |
1969 | tp->tgoal.iu = tp->tgoal.dt = 1; | |
1970 | else | |
1971 | tp->tgoal.iu = 0; | |
1972 | tp->tgoal.check_nego = 1; | |
1973 | } | |
1974 | ||
1975 | static void sym2_set_qas(struct scsi_target *starget, int qas) | |
1976 | { | |
1977 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1978 | struct sym_hcb *np = sym_get_hcb(shost); | |
1979 | struct sym_tcb *tp = &np->target[starget->id]; | |
1980 | ||
1981 | if (qas) | |
1982 | tp->tgoal.dt = tp->tgoal.qas = 1; | |
1983 | else | |
1984 | tp->tgoal.qas = 0; | |
1985 | tp->tgoal.check_nego = 1; | |
1986 | } | |
8b2f8138 | 1987 | #endif |
1da177e4 LT |
1988 | |
1989 | static struct spi_function_template sym2_transport_functions = { | |
1990 | .set_offset = sym2_set_offset, | |
1991 | .show_offset = 1, | |
1992 | .set_period = sym2_set_period, | |
1993 | .show_period = 1, | |
1994 | .set_width = sym2_set_width, | |
1995 | .show_width = 1, | |
1996 | .set_dt = sym2_set_dt, | |
1997 | .show_dt = 1, | |
8b2f8138 | 1998 | #if 0 |
1da177e4 LT |
1999 | .set_iu = sym2_set_iu, |
2000 | .show_iu = 1, | |
2001 | .set_qas = sym2_set_qas, | |
2002 | .show_qas = 1, | |
8b2f8138 | 2003 | #endif |
1da177e4 LT |
2004 | .get_signalling = sym2_get_signalling, |
2005 | }; | |
2006 | ||
2007 | static struct pci_device_id sym2_id_table[] __devinitdata = { | |
2008 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C810, | |
2009 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2010 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C820, | |
2011 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */ | |
2012 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C825, | |
2013 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2014 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C815, | |
2015 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2016 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C810AP, | |
2017 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */ | |
2018 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C860, | |
2019 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2020 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1510, | |
b2b3c121 | 2021 | PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8, 0xffff00, 0UL }, |
1da177e4 LT |
2022 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C896, |
2023 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2024 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C895, | |
2025 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2026 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C885, | |
2027 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2028 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875, | |
2029 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2030 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C1510, | |
147e505e | 2031 | PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8, 0xffff00, 0UL }, /* new */ |
1da177e4 LT |
2032 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C895A, |
2033 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2034 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C875A, | |
2035 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2036 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_33, | |
2037 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2038 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_66, | |
2039 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2040 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875J, | |
2041 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2042 | { 0, } | |
2043 | }; | |
2044 | ||
2045 | MODULE_DEVICE_TABLE(pci, sym2_id_table); | |
2046 | ||
d68cd759 LV |
2047 | static struct pci_error_handlers sym2_err_handler = { |
2048 | .error_detected = sym2_io_error_detected, | |
2049 | .mmio_enabled = sym2_io_slot_dump, | |
2050 | .slot_reset = sym2_io_slot_reset, | |
2051 | .resume = sym2_io_resume, | |
2052 | }; | |
2053 | ||
1da177e4 LT |
2054 | static struct pci_driver sym2_driver = { |
2055 | .name = NAME53C8XX, | |
2056 | .id_table = sym2_id_table, | |
2057 | .probe = sym2_probe, | |
864473bb | 2058 | .remove = sym2_remove, |
d68cd759 | 2059 | .err_handler = &sym2_err_handler, |
1da177e4 LT |
2060 | }; |
2061 | ||
2062 | static int __init sym2_init(void) | |
2063 | { | |
2064 | int error; | |
2065 | ||
2066 | sym2_setup_params(); | |
2067 | sym2_transport_template = spi_attach_transport(&sym2_transport_functions); | |
2068 | if (!sym2_transport_template) | |
2069 | return -ENODEV; | |
2070 | ||
2071 | error = pci_register_driver(&sym2_driver); | |
2072 | if (error) | |
2073 | spi_release_transport(sym2_transport_template); | |
2074 | return error; | |
2075 | } | |
2076 | ||
2077 | static void __exit sym2_exit(void) | |
2078 | { | |
2079 | pci_unregister_driver(&sym2_driver); | |
2080 | spi_release_transport(sym2_transport_template); | |
2081 | } | |
2082 | ||
2083 | module_init(sym2_init); | |
2084 | module_exit(sym2_exit); |