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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family | |
4 | * of PCI-SCSI IO processors. | |
5 | * | |
6 | * Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr> | |
7 | * Copyright (c) 2003-2005 Matthew Wilcox <matthew@wil.cx> | |
8 | * | |
9 | * This driver is derived from the Linux sym53c8xx driver. | |
10 | * Copyright (C) 1998-2000 Gerard Roudier | |
11 | * | |
12 | * The sym53c8xx driver is derived from the ncr53c8xx driver that had been | |
13 | * a port of the FreeBSD ncr driver to Linux-1.2.13. | |
14 | * | |
15 | * The original ncr driver has been written for 386bsd and FreeBSD by | |
16 | * Wolfgang Stanglmeier <wolf@cologne.de> | |
17 | * Stefan Esser <se@mi.Uni-Koeln.de> | |
18 | * Copyright (C) 1994 Wolfgang Stanglmeier | |
19 | * | |
20 | * Other major contributions: | |
21 | * | |
22 | * NVRAM detection and reading. | |
23 | * Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk> | |
24 | * | |
25 | *----------------------------------------------------------------------------- | |
1da177e4 LT |
26 | */ |
27 | #include <linux/ctype.h> | |
28 | #include <linux/init.h> | |
1da177e4 LT |
29 | #include <linux/module.h> |
30 | #include <linux/moduleparam.h> | |
31 | #include <linux/spinlock.h> | |
32 | #include <scsi/scsi.h> | |
33 | #include <scsi/scsi_tcq.h> | |
34 | #include <scsi/scsi_device.h> | |
35 | #include <scsi/scsi_transport.h> | |
36 | ||
37 | #include "sym_glue.h" | |
38 | #include "sym_nvram.h" | |
39 | ||
40 | #define NAME53C "sym53c" | |
41 | #define NAME53C8XX "sym53c8xx" | |
42 | ||
1da177e4 LT |
43 | struct sym_driver_setup sym_driver_setup = SYM_LINUX_DRIVER_SETUP; |
44 | unsigned int sym_debug_flags = 0; | |
45 | ||
46 | static char *excl_string; | |
47 | static char *safe_string; | |
48 | module_param_named(cmd_per_lun, sym_driver_setup.max_tag, ushort, 0); | |
1da177e4 LT |
49 | module_param_named(burst, sym_driver_setup.burst_order, byte, 0); |
50 | module_param_named(led, sym_driver_setup.scsi_led, byte, 0); | |
51 | module_param_named(diff, sym_driver_setup.scsi_diff, byte, 0); | |
52 | module_param_named(irqm, sym_driver_setup.irq_mode, byte, 0); | |
53 | module_param_named(buschk, sym_driver_setup.scsi_bus_check, byte, 0); | |
54 | module_param_named(hostid, sym_driver_setup.host_id, byte, 0); | |
55 | module_param_named(verb, sym_driver_setup.verbose, byte, 0); | |
56 | module_param_named(debug, sym_debug_flags, uint, 0); | |
57 | module_param_named(settle, sym_driver_setup.settle_delay, byte, 0); | |
58 | module_param_named(nvram, sym_driver_setup.use_nvram, byte, 0); | |
59 | module_param_named(excl, excl_string, charp, 0); | |
60 | module_param_named(safe, safe_string, charp, 0); | |
61 | ||
62 | MODULE_PARM_DESC(cmd_per_lun, "The maximum number of tags to use by default"); | |
1da177e4 LT |
63 | MODULE_PARM_DESC(burst, "Maximum burst. 0 to disable, 255 to read from registers"); |
64 | MODULE_PARM_DESC(led, "Set to 1 to enable LED support"); | |
65 | MODULE_PARM_DESC(diff, "0 for no differential mode, 1 for BIOS, 2 for always, 3 for not GPIO3"); | |
66 | MODULE_PARM_DESC(irqm, "0 for open drain, 1 to leave alone, 2 for totem pole"); | |
67 | MODULE_PARM_DESC(buschk, "0 to not check, 1 for detach on error, 2 for warn on error"); | |
68 | MODULE_PARM_DESC(hostid, "The SCSI ID to use for the host adapters"); | |
69 | MODULE_PARM_DESC(verb, "0 for minimal verbosity, 1 for normal, 2 for excessive"); | |
70 | MODULE_PARM_DESC(debug, "Set bits to enable debugging"); | |
71 | MODULE_PARM_DESC(settle, "Settle delay in seconds. Default 3"); | |
72 | MODULE_PARM_DESC(nvram, "Option currently not used"); | |
73 | MODULE_PARM_DESC(excl, "List ioport addresses here to prevent controllers from being attached"); | |
74 | MODULE_PARM_DESC(safe, "Set other settings to a \"safe mode\""); | |
75 | ||
76 | MODULE_LICENSE("GPL"); | |
77 | MODULE_VERSION(SYM_VERSION); | |
78 | MODULE_AUTHOR("Matthew Wilcox <matthew@wil.cx>"); | |
79 | MODULE_DESCRIPTION("NCR, Symbios and LSI 8xx and 1010 PCI SCSI adapters"); | |
80 | ||
81 | static void sym2_setup_params(void) | |
82 | { | |
83 | char *p = excl_string; | |
84 | int xi = 0; | |
85 | ||
86 | while (p && (xi < 8)) { | |
87 | char *next_p; | |
88 | int val = (int) simple_strtoul(p, &next_p, 0); | |
89 | sym_driver_setup.excludes[xi++] = val; | |
90 | p = next_p; | |
91 | } | |
92 | ||
93 | if (safe_string) { | |
94 | if (*safe_string == 'y') { | |
95 | sym_driver_setup.max_tag = 0; | |
96 | sym_driver_setup.burst_order = 0; | |
97 | sym_driver_setup.scsi_led = 0; | |
98 | sym_driver_setup.scsi_diff = 1; | |
99 | sym_driver_setup.irq_mode = 0; | |
100 | sym_driver_setup.scsi_bus_check = 2; | |
101 | sym_driver_setup.host_id = 7; | |
102 | sym_driver_setup.verbose = 2; | |
103 | sym_driver_setup.settle_delay = 10; | |
104 | sym_driver_setup.use_nvram = 1; | |
105 | } else if (*safe_string != 'n') { | |
106 | printk(KERN_WARNING NAME53C8XX "Ignoring parameter %s" | |
107 | " passed to safe option", safe_string); | |
108 | } | |
109 | } | |
110 | } | |
111 | ||
1da177e4 LT |
112 | static struct scsi_transport_template *sym2_transport_template = NULL; |
113 | ||
1da177e4 LT |
114 | /* |
115 | * Driver private area in the SCSI command structure. | |
116 | */ | |
117 | struct sym_ucmd { /* Override the SCSI pointer structure */ | |
d68cd759 | 118 | struct completion *eh_done; /* SCSI error handling */ |
1da177e4 LT |
119 | }; |
120 | ||
121 | #define SYM_UCMD_PTR(cmd) ((struct sym_ucmd *)(&(cmd)->SCp)) | |
122 | #define SYM_SOFTC_PTR(cmd) sym_get_hcb(cmd->device->host) | |
123 | ||
1da177e4 LT |
124 | /* |
125 | * Complete a pending CAM CCB. | |
126 | */ | |
127 | void sym_xpt_done(struct sym_hcb *np, struct scsi_cmnd *cmd) | |
128 | { | |
2ba65367 MW |
129 | struct sym_ucmd *ucmd = SYM_UCMD_PTR(cmd); |
130 | BUILD_BUG_ON(sizeof(struct scsi_pointer) < sizeof(struct sym_ucmd)); | |
131 | ||
132 | if (ucmd->eh_done) | |
133 | complete(ucmd->eh_done); | |
134 | ||
39c05d1e | 135 | scsi_dma_unmap(cmd); |
1da177e4 LT |
136 | cmd->scsi_done(cmd); |
137 | } | |
138 | ||
1da177e4 LT |
139 | /* |
140 | * Tell the SCSI layer about a BUS RESET. | |
141 | */ | |
142 | void sym_xpt_async_bus_reset(struct sym_hcb *np) | |
143 | { | |
144 | printf_notice("%s: SCSI BUS has been reset.\n", sym_name(np)); | |
145 | np->s.settle_time = jiffies + sym_driver_setup.settle_delay * HZ; | |
146 | np->s.settle_time_valid = 1; | |
147 | if (sym_verbose >= 2) | |
148 | printf_info("%s: command processing suspended for %d seconds\n", | |
149 | sym_name(np), sym_driver_setup.settle_delay); | |
150 | } | |
151 | ||
1da177e4 LT |
152 | /* |
153 | * Choose the more appropriate CAM status if | |
154 | * the IO encountered an extended error. | |
155 | */ | |
156 | static int sym_xerr_cam_status(int cam_status, int x_status) | |
157 | { | |
158 | if (x_status) { | |
159 | if (x_status & XE_PARITY_ERR) | |
160 | cam_status = DID_PARITY; | |
161 | else if (x_status &(XE_EXTRA_DATA|XE_SODL_UNRUN|XE_SWIDE_OVRUN)) | |
162 | cam_status = DID_ERROR; | |
163 | else if (x_status & XE_BAD_PHASE) | |
164 | cam_status = DID_ERROR; | |
165 | else | |
166 | cam_status = DID_ERROR; | |
167 | } | |
168 | return cam_status; | |
169 | } | |
170 | ||
171 | /* | |
172 | * Build CAM result for a failed or auto-sensed IO. | |
173 | */ | |
174 | void sym_set_cam_result_error(struct sym_hcb *np, struct sym_ccb *cp, int resid) | |
175 | { | |
176 | struct scsi_cmnd *cmd = cp->cmd; | |
177 | u_int cam_status, scsi_status, drv_status; | |
178 | ||
179 | drv_status = 0; | |
180 | cam_status = DID_OK; | |
181 | scsi_status = cp->ssss_status; | |
182 | ||
183 | if (cp->host_flags & HF_SENSE) { | |
184 | scsi_status = cp->sv_scsi_status; | |
185 | resid = cp->sv_resid; | |
186 | if (sym_verbose && cp->sv_xerr_status) | |
187 | sym_print_xerr(cmd, cp->sv_xerr_status); | |
188 | if (cp->host_status == HS_COMPLETE && | |
189 | cp->ssss_status == S_GOOD && | |
190 | cp->xerr_status == 0) { | |
191 | cam_status = sym_xerr_cam_status(DID_OK, | |
192 | cp->sv_xerr_status); | |
193 | drv_status = DRIVER_SENSE; | |
194 | /* | |
195 | * Bounce back the sense data to user. | |
196 | */ | |
de15c201 | 197 | memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); |
1da177e4 | 198 | memcpy(cmd->sense_buffer, cp->sns_bbuf, |
b80ca4f7 | 199 | min(SCSI_SENSE_BUFFERSIZE, SYM_SNS_BBUF_LEN)); |
1da177e4 LT |
200 | #if 0 |
201 | /* | |
202 | * If the device reports a UNIT ATTENTION condition | |
203 | * due to a RESET condition, we should consider all | |
204 | * disconnect CCBs for this unit as aborted. | |
205 | */ | |
206 | if (1) { | |
207 | u_char *p; | |
208 | p = (u_char *) cmd->sense_data; | |
209 | if (p[0]==0x70 && p[2]==0x6 && p[12]==0x29) | |
210 | sym_clear_tasks(np, DID_ABORT, | |
211 | cp->target,cp->lun, -1); | |
212 | } | |
213 | #endif | |
214 | } else { | |
215 | /* | |
216 | * Error return from our internal request sense. This | |
217 | * is bad: we must clear the contingent allegiance | |
218 | * condition otherwise the device will always return | |
219 | * BUSY. Use a big stick. | |
220 | */ | |
221 | sym_reset_scsi_target(np, cmd->device->id); | |
222 | cam_status = DID_ERROR; | |
223 | } | |
224 | } else if (cp->host_status == HS_COMPLETE) /* Bad SCSI status */ | |
225 | cam_status = DID_OK; | |
226 | else if (cp->host_status == HS_SEL_TIMEOUT) /* Selection timeout */ | |
227 | cam_status = DID_NO_CONNECT; | |
228 | else if (cp->host_status == HS_UNEXPECTED) /* Unexpected BUS FREE*/ | |
229 | cam_status = DID_ERROR; | |
230 | else { /* Extended error */ | |
231 | if (sym_verbose) { | |
232 | sym_print_addr(cmd, "COMMAND FAILED (%x %x %x).\n", | |
233 | cp->host_status, cp->ssss_status, | |
234 | cp->xerr_status); | |
235 | } | |
236 | /* | |
237 | * Set the most appropriate value for CAM status. | |
238 | */ | |
239 | cam_status = sym_xerr_cam_status(DID_ERROR, cp->xerr_status); | |
240 | } | |
938febd6 | 241 | scsi_set_resid(cmd, resid); |
6bec4c38 | 242 | cmd->result = (drv_status << 24) | (cam_status << 16) | scsi_status; |
1da177e4 LT |
243 | } |
244 | ||
1da177e4 LT |
245 | static int sym_scatter(struct sym_hcb *np, struct sym_ccb *cp, struct scsi_cmnd *cmd) |
246 | { | |
247 | int segment; | |
938febd6 | 248 | int use_sg; |
1da177e4 LT |
249 | |
250 | cp->data_len = 0; | |
251 | ||
39c05d1e | 252 | use_sg = scsi_dma_map(cmd); |
938febd6 FT |
253 | if (use_sg > 0) { |
254 | struct scatterlist *sg; | |
53222b90 | 255 | struct sym_tcb *tp = &np->target[cp->target]; |
1da177e4 LT |
256 | struct sym_tblmove *data; |
257 | ||
258 | if (use_sg > SYM_CONF_MAX_SG) { | |
39c05d1e | 259 | scsi_dma_unmap(cmd); |
1da177e4 LT |
260 | return -1; |
261 | } | |
262 | ||
263 | data = &cp->phys.data[SYM_CONF_MAX_SG - use_sg]; | |
264 | ||
938febd6 FT |
265 | scsi_for_each_sg(cmd, sg, use_sg, segment) { |
266 | dma_addr_t baddr = sg_dma_address(sg); | |
267 | unsigned int len = sg_dma_len(sg); | |
1da177e4 | 268 | |
53222b90 MW |
269 | if ((len & 1) && (tp->head.wval & EWS)) { |
270 | len++; | |
271 | cp->odd_byte_adjustment++; | |
272 | } | |
273 | ||
1da177e4 LT |
274 | sym_build_sge(np, &data[segment], baddr, len); |
275 | cp->data_len += len; | |
276 | } | |
277 | } else { | |
278 | segment = -2; | |
279 | } | |
280 | ||
281 | return segment; | |
282 | } | |
283 | ||
284 | /* | |
285 | * Queue a SCSI command. | |
286 | */ | |
287 | static int sym_queue_command(struct sym_hcb *np, struct scsi_cmnd *cmd) | |
288 | { | |
289 | struct scsi_device *sdev = cmd->device; | |
290 | struct sym_tcb *tp; | |
291 | struct sym_lcb *lp; | |
292 | struct sym_ccb *cp; | |
293 | int order; | |
294 | ||
1da177e4 LT |
295 | /* |
296 | * Retrieve the target descriptor. | |
297 | */ | |
298 | tp = &np->target[sdev->id]; | |
299 | ||
1da177e4 LT |
300 | /* |
301 | * Select tagged/untagged. | |
302 | */ | |
303 | lp = sym_lp(tp, sdev->lun); | |
304 | order = (lp && lp->s.reqtags) ? M_SIMPLE_TAG : 0; | |
305 | ||
306 | /* | |
307 | * Queue the SCSI IO. | |
308 | */ | |
309 | cp = sym_get_ccb(np, cmd, order); | |
310 | if (!cp) | |
311 | return 1; /* Means resource shortage */ | |
312 | sym_queue_scsiio(np, cmd, cp); | |
313 | return 0; | |
314 | } | |
315 | ||
316 | /* | |
317 | * Setup buffers and pointers that address the CDB. | |
318 | */ | |
319 | static inline int sym_setup_cdb(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *cp) | |
320 | { | |
1da177e4 | 321 | memcpy(cp->cdb_buf, cmd->cmnd, cmd->cmd_len); |
1da177e4 | 322 | |
53222b90 MW |
323 | cp->phys.cmd.addr = CCB_BA(cp, cdb_buf[0]); |
324 | cp->phys.cmd.size = cpu_to_scr(cmd->cmd_len); | |
1da177e4 LT |
325 | |
326 | return 0; | |
327 | } | |
328 | ||
329 | /* | |
330 | * Setup pointers that address the data and start the I/O. | |
331 | */ | |
332 | int sym_setup_data_and_start(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *cp) | |
333 | { | |
44f30b0f MW |
334 | u32 lastp, goalp; |
335 | int dir; | |
1da177e4 LT |
336 | |
337 | /* | |
338 | * Build the CDB. | |
339 | */ | |
340 | if (sym_setup_cdb(np, cmd, cp)) | |
341 | goto out_abort; | |
342 | ||
343 | /* | |
344 | * No direction means no data. | |
345 | */ | |
346 | dir = cmd->sc_data_direction; | |
347 | if (dir != DMA_NONE) { | |
348 | cp->segments = sym_scatter(np, cp, cmd); | |
349 | if (cp->segments < 0) { | |
53222b90 | 350 | sym_set_cam_status(cmd, DID_ERROR); |
1da177e4 LT |
351 | goto out_abort; |
352 | } | |
44f30b0f MW |
353 | |
354 | /* | |
355 | * No segments means no data. | |
356 | */ | |
357 | if (!cp->segments) | |
358 | dir = DMA_NONE; | |
1da177e4 LT |
359 | } else { |
360 | cp->data_len = 0; | |
361 | cp->segments = 0; | |
362 | } | |
363 | ||
364 | /* | |
44f30b0f MW |
365 | * Set the data pointer. |
366 | */ | |
367 | switch (dir) { | |
368 | case DMA_BIDIRECTIONAL: | |
3fb364e0 | 369 | scmd_printk(KERN_INFO, cmd, "got DMA_BIDIRECTIONAL command"); |
44f30b0f MW |
370 | sym_set_cam_status(cmd, DID_ERROR); |
371 | goto out_abort; | |
372 | case DMA_TO_DEVICE: | |
373 | goalp = SCRIPTA_BA(np, data_out2) + 8; | |
374 | lastp = goalp - 8 - (cp->segments * (2*4)); | |
375 | break; | |
376 | case DMA_FROM_DEVICE: | |
377 | cp->host_flags |= HF_DATA_IN; | |
378 | goalp = SCRIPTA_BA(np, data_in2) + 8; | |
379 | lastp = goalp - 8 - (cp->segments * (2*4)); | |
380 | break; | |
381 | case DMA_NONE: | |
382 | default: | |
383 | lastp = goalp = SCRIPTB_BA(np, no_data); | |
384 | break; | |
385 | } | |
386 | ||
387 | /* | |
388 | * Set all pointers values needed by SCRIPTS. | |
1da177e4 | 389 | */ |
44f30b0f MW |
390 | cp->phys.head.lastp = cpu_to_scr(lastp); |
391 | cp->phys.head.savep = cpu_to_scr(lastp); | |
392 | cp->startp = cp->phys.head.savep; | |
393 | cp->goalp = cpu_to_scr(goalp); | |
1da177e4 LT |
394 | |
395 | /* | |
396 | * When `#ifed 1', the code below makes the driver | |
397 | * panic on the first attempt to write to a SCSI device. | |
398 | * It is the first test we want to do after a driver | |
399 | * change that does not seem obviously safe. :) | |
400 | */ | |
401 | #if 0 | |
402 | switch (cp->cdb_buf[0]) { | |
403 | case 0x0A: case 0x2A: case 0xAA: | |
404 | panic("XXXXXXXXXXXXX WRITE NOT YET ALLOWED XXXXXXXXXXXXXX\n"); | |
405 | break; | |
406 | default: | |
407 | break; | |
408 | } | |
409 | #endif | |
410 | ||
411 | /* | |
412 | * activate this job. | |
413 | */ | |
3bea15a7 | 414 | sym_put_start_queue(np, cp); |
1da177e4 LT |
415 | return 0; |
416 | ||
417 | out_abort: | |
418 | sym_free_ccb(np, cp); | |
419 | sym_xpt_done(np, cmd); | |
420 | return 0; | |
421 | } | |
422 | ||
423 | ||
424 | /* | |
425 | * timer daemon. | |
426 | * | |
427 | * Misused to keep the driver running when | |
428 | * interrupts are not configured correctly. | |
429 | */ | |
430 | static void sym_timer(struct sym_hcb *np) | |
431 | { | |
432 | unsigned long thistime = jiffies; | |
433 | ||
434 | /* | |
435 | * Restart the timer. | |
436 | */ | |
437 | np->s.timer.expires = thistime + SYM_CONF_TIMER_INTERVAL; | |
438 | add_timer(&np->s.timer); | |
439 | ||
440 | /* | |
441 | * If we are resetting the ncr, wait for settle_time before | |
442 | * clearing it. Then command processing will be resumed. | |
443 | */ | |
444 | if (np->s.settle_time_valid) { | |
445 | if (time_before_eq(np->s.settle_time, thistime)) { | |
446 | if (sym_verbose >= 2 ) | |
447 | printk("%s: command processing resumed\n", | |
448 | sym_name(np)); | |
449 | np->s.settle_time_valid = 0; | |
450 | } | |
451 | return; | |
452 | } | |
453 | ||
454 | /* | |
455 | * Nothing to do for now, but that may come. | |
456 | */ | |
457 | if (np->s.lasttime + 4*HZ < thistime) { | |
458 | np->s.lasttime = thistime; | |
459 | } | |
460 | ||
461 | #ifdef SYM_CONF_PCIQ_MAY_MISS_COMPLETIONS | |
462 | /* | |
463 | * Some way-broken PCI bridges may lead to | |
464 | * completions being lost when the clearing | |
465 | * of the INTFLY flag by the CPU occurs | |
466 | * concurrently with the chip raising this flag. | |
467 | * If this ever happen, lost completions will | |
468 | * be reaped here. | |
469 | */ | |
470 | sym_wakeup_done(np); | |
471 | #endif | |
472 | } | |
473 | ||
474 | ||
475 | /* | |
476 | * PCI BUS error handler. | |
477 | */ | |
5111eefa | 478 | void sym_log_bus_error(struct Scsi_Host *shost) |
1da177e4 | 479 | { |
5111eefa MW |
480 | struct sym_data *sym_data = shost_priv(shost); |
481 | struct pci_dev *pdev = sym_data->pdev; | |
482 | unsigned short pci_sts; | |
483 | pci_read_config_word(pdev, PCI_STATUS, &pci_sts); | |
1da177e4 | 484 | if (pci_sts & 0xf900) { |
5111eefa MW |
485 | pci_write_config_word(pdev, PCI_STATUS, pci_sts); |
486 | shost_printk(KERN_WARNING, shost, | |
487 | "PCI bus error: status = 0x%04x\n", pci_sts & 0xf900); | |
1da177e4 LT |
488 | } |
489 | } | |
490 | ||
491 | /* | |
492 | * queuecommand method. Entered with the host adapter lock held and | |
493 | * interrupts disabled. | |
494 | */ | |
f281233d | 495 | static int sym53c8xx_queue_command_lck(struct scsi_cmnd *cmd, |
1da177e4 LT |
496 | void (*done)(struct scsi_cmnd *)) |
497 | { | |
498 | struct sym_hcb *np = SYM_SOFTC_PTR(cmd); | |
499 | struct sym_ucmd *ucp = SYM_UCMD_PTR(cmd); | |
500 | int sts = 0; | |
501 | ||
71c222dc | 502 | cmd->scsi_done = done; |
1da177e4 LT |
503 | memset(ucp, 0, sizeof(*ucp)); |
504 | ||
505 | /* | |
506 | * Shorten our settle_time if needed for | |
507 | * this command not to time out. | |
508 | */ | |
242f9dcb JA |
509 | if (np->s.settle_time_valid && cmd->request->timeout) { |
510 | unsigned long tlimit = jiffies + cmd->request->timeout; | |
1da177e4 LT |
511 | tlimit -= SYM_CONF_TIMER_INTERVAL*2; |
512 | if (time_after(np->s.settle_time, tlimit)) { | |
513 | np->s.settle_time = tlimit; | |
514 | } | |
515 | } | |
516 | ||
517 | if (np->s.settle_time_valid) | |
518 | return SCSI_MLQUEUE_HOST_BUSY; | |
519 | ||
520 | sts = sym_queue_command(np, cmd); | |
521 | if (sts) | |
522 | return SCSI_MLQUEUE_HOST_BUSY; | |
523 | return 0; | |
524 | } | |
525 | ||
f281233d JG |
526 | static DEF_SCSI_QCMD(sym53c8xx_queue_command) |
527 | ||
1da177e4 LT |
528 | /* |
529 | * Linux entry point of the interrupt handler. | |
530 | */ | |
7d12e780 | 531 | static irqreturn_t sym53c8xx_intr(int irq, void *dev_id) |
1da177e4 | 532 | { |
99c9e0a1 MW |
533 | struct Scsi_Host *shost = dev_id; |
534 | struct sym_data *sym_data = shost_priv(shost); | |
535 | irqreturn_t result; | |
1da177e4 | 536 | |
d68cd759 | 537 | /* Avoid spinloop trying to handle interrupts on frozen device */ |
99c9e0a1 | 538 | if (pci_channel_offline(sym_data->pdev)) |
d68cd759 LV |
539 | return IRQ_NONE; |
540 | ||
1da177e4 LT |
541 | if (DEBUG_FLAGS & DEBUG_TINY) printf_debug ("["); |
542 | ||
99c9e0a1 MW |
543 | spin_lock(shost->host_lock); |
544 | result = sym_interrupt(shost); | |
545 | spin_unlock(shost->host_lock); | |
1da177e4 LT |
546 | |
547 | if (DEBUG_FLAGS & DEBUG_TINY) printf_debug ("]\n"); | |
548 | ||
99c9e0a1 | 549 | return result; |
1da177e4 LT |
550 | } |
551 | ||
552 | /* | |
553 | * Linux entry point of the timer handler | |
554 | */ | |
86cb30ec | 555 | static void sym53c8xx_timer(struct timer_list *t) |
1da177e4 | 556 | { |
86cb30ec | 557 | struct sym_hcb *np = from_timer(np, t, s.timer); |
1da177e4 LT |
558 | unsigned long flags; |
559 | ||
560 | spin_lock_irqsave(np->s.host->host_lock, flags); | |
561 | sym_timer(np); | |
562 | spin_unlock_irqrestore(np->s.host->host_lock, flags); | |
563 | } | |
564 | ||
565 | ||
566 | /* | |
567 | * What the eh thread wants us to perform. | |
568 | */ | |
569 | #define SYM_EH_ABORT 0 | |
570 | #define SYM_EH_DEVICE_RESET 1 | |
571 | #define SYM_EH_BUS_RESET 2 | |
572 | #define SYM_EH_HOST_RESET 3 | |
573 | ||
1da177e4 LT |
574 | /* |
575 | * Generic method for our eh processing. | |
576 | * The 'op' argument tells what we have to do. | |
577 | */ | |
578 | static int sym_eh_handler(int op, char *opname, struct scsi_cmnd *cmd) | |
579 | { | |
b4e93a73 | 580 | struct sym_ucmd *ucmd = SYM_UCMD_PTR(cmd); |
5111eefa MW |
581 | struct Scsi_Host *shost = cmd->device->host; |
582 | struct sym_data *sym_data = shost_priv(shost); | |
583 | struct pci_dev *pdev = sym_data->pdev; | |
584 | struct sym_hcb *np = sym_data->ncb; | |
1da177e4 | 585 | SYM_QUEHEAD *qp; |
2ba65367 | 586 | int cmd_queued = 0; |
1da177e4 | 587 | int sts = -1; |
d637c454 | 588 | struct completion eh_done; |
1da177e4 | 589 | |
5111eefa | 590 | scmd_printk(KERN_WARNING, cmd, "%s operation started\n", opname); |
1da177e4 | 591 | |
d68cd759 LV |
592 | /* We may be in an error condition because the PCI bus |
593 | * went down. In this case, we need to wait until the | |
594 | * PCI bus is reset, the card is reset, and only then | |
595 | * proceed with the scsi error recovery. There's no | |
596 | * point in hurrying; take a leisurely wait. | |
597 | */ | |
598 | #define WAIT_FOR_PCI_RECOVERY 35 | |
599 | if (pci_channel_offline(pdev)) { | |
d68cd759 LV |
600 | int finished_reset = 0; |
601 | init_completion(&eh_done); | |
5111eefa | 602 | spin_lock_irq(shost->host_lock); |
d68cd759 LV |
603 | /* Make sure we didn't race */ |
604 | if (pci_channel_offline(pdev)) { | |
d9aa3af0 KH |
605 | BUG_ON(sym_data->io_reset); |
606 | sym_data->io_reset = &eh_done; | |
d68cd759 | 607 | } else { |
d68cd759 | 608 | finished_reset = 1; |
99c9e0a1 | 609 | } |
5111eefa | 610 | spin_unlock_irq(shost->host_lock); |
d68cd759 | 611 | if (!finished_reset) |
d9aa3af0 KH |
612 | finished_reset = wait_for_completion_timeout |
613 | (sym_data->io_reset, | |
d68cd759 | 614 | WAIT_FOR_PCI_RECOVERY*HZ); |
d9aa3af0 KH |
615 | spin_lock_irq(shost->host_lock); |
616 | sym_data->io_reset = NULL; | |
617 | spin_unlock_irq(shost->host_lock); | |
d68cd759 LV |
618 | if (!finished_reset) |
619 | return SCSI_FAILED; | |
620 | } | |
621 | ||
5111eefa | 622 | spin_lock_irq(shost->host_lock); |
1da177e4 LT |
623 | /* This one is queued in some place -> to wait for completion */ |
624 | FOR_EACH_QUEUED_ELEMENT(&np->busy_ccbq, qp) { | |
625 | struct sym_ccb *cp = sym_que_entry(qp, struct sym_ccb, link_ccbq); | |
626 | if (cp->cmd == cmd) { | |
2ba65367 | 627 | cmd_queued = 1; |
ab19d52b | 628 | break; |
1da177e4 LT |
629 | } |
630 | } | |
631 | ||
1da177e4 LT |
632 | /* Try to proceed the operation we have been asked for */ |
633 | sts = -1; | |
634 | switch(op) { | |
635 | case SYM_EH_ABORT: | |
636 | sts = sym_abort_scsiio(np, cmd, 1); | |
637 | break; | |
638 | case SYM_EH_DEVICE_RESET: | |
639 | sts = sym_reset_scsi_target(np, cmd->device->id); | |
640 | break; | |
641 | case SYM_EH_BUS_RESET: | |
642 | sym_reset_scsi_bus(np, 1); | |
643 | sts = 0; | |
644 | break; | |
645 | case SYM_EH_HOST_RESET: | |
646 | sym_reset_scsi_bus(np, 0); | |
5111eefa | 647 | sym_start_up(shost, 1); |
1da177e4 LT |
648 | sts = 0; |
649 | break; | |
650 | default: | |
651 | break; | |
652 | } | |
653 | ||
654 | /* On error, restore everything and cross fingers :) */ | |
2ba65367 MW |
655 | if (sts) |
656 | cmd_queued = 0; | |
1da177e4 | 657 | |
2ba65367 MW |
658 | if (cmd_queued) { |
659 | init_completion(&eh_done); | |
660 | ucmd->eh_done = &eh_done; | |
5111eefa | 661 | spin_unlock_irq(shost->host_lock); |
d637c454 | 662 | if (!wait_for_completion_timeout(&eh_done, 5*HZ)) { |
2ba65367 | 663 | ucmd->eh_done = NULL; |
1da177e4 | 664 | sts = -2; |
b4e93a73 | 665 | } |
2ba65367 | 666 | } else { |
5111eefa | 667 | spin_unlock_irq(shost->host_lock); |
1da177e4 | 668 | } |
2ba65367 | 669 | |
1da177e4 LT |
670 | dev_warn(&cmd->device->sdev_gendev, "%s operation %s.\n", opname, |
671 | sts==0 ? "complete" :sts==-2 ? "timed-out" : "failed"); | |
672 | return sts ? SCSI_FAILED : SCSI_SUCCESS; | |
673 | } | |
674 | ||
675 | ||
676 | /* | |
677 | * Error handlers called from the eh thread (one thread per HBA). | |
678 | */ | |
679 | static int sym53c8xx_eh_abort_handler(struct scsi_cmnd *cmd) | |
680 | { | |
ab19d52b | 681 | return sym_eh_handler(SYM_EH_ABORT, "ABORT", cmd); |
1da177e4 LT |
682 | } |
683 | ||
684 | static int sym53c8xx_eh_device_reset_handler(struct scsi_cmnd *cmd) | |
685 | { | |
ab19d52b | 686 | return sym_eh_handler(SYM_EH_DEVICE_RESET, "DEVICE RESET", cmd); |
1da177e4 LT |
687 | } |
688 | ||
689 | static int sym53c8xx_eh_bus_reset_handler(struct scsi_cmnd *cmd) | |
690 | { | |
ab19d52b | 691 | return sym_eh_handler(SYM_EH_BUS_RESET, "BUS RESET", cmd); |
1da177e4 LT |
692 | } |
693 | ||
694 | static int sym53c8xx_eh_host_reset_handler(struct scsi_cmnd *cmd) | |
695 | { | |
ab19d52b | 696 | return sym_eh_handler(SYM_EH_HOST_RESET, "HOST RESET", cmd); |
1da177e4 LT |
697 | } |
698 | ||
699 | /* | |
700 | * Tune device queuing depth, according to various limits. | |
701 | */ | |
702 | static void sym_tune_dev_queuing(struct sym_tcb *tp, int lun, u_short reqtags) | |
703 | { | |
704 | struct sym_lcb *lp = sym_lp(tp, lun); | |
705 | u_short oldtags; | |
706 | ||
707 | if (!lp) | |
708 | return; | |
709 | ||
710 | oldtags = lp->s.reqtags; | |
711 | ||
712 | if (reqtags > lp->s.scdev_depth) | |
713 | reqtags = lp->s.scdev_depth; | |
714 | ||
1da177e4 LT |
715 | lp->s.reqtags = reqtags; |
716 | ||
717 | if (reqtags != oldtags) { | |
53222b90 | 718 | dev_info(&tp->starget->dev, |
1da177e4 | 719 | "tagged command queuing %s, command queue depth %d.\n", |
3bea15a7 | 720 | lp->s.reqtags ? "enabled" : "disabled", reqtags); |
1da177e4 LT |
721 | } |
722 | } | |
723 | ||
53222b90 | 724 | static int sym53c8xx_slave_alloc(struct scsi_device *sdev) |
1da177e4 | 725 | { |
84e203a2 MW |
726 | struct sym_hcb *np = sym_get_hcb(sdev->host); |
727 | struct sym_tcb *tp = &np->target[sdev->id]; | |
728 | struct sym_lcb *lp; | |
fa858456 AK |
729 | unsigned long flags; |
730 | int error; | |
1da177e4 | 731 | |
53222b90 MW |
732 | if (sdev->id >= SYM_CONF_MAX_TARGET || sdev->lun >= SYM_CONF_MAX_LUN) |
733 | return -ENXIO; | |
1da177e4 | 734 | |
fa858456 AK |
735 | spin_lock_irqsave(np->s.host->host_lock, flags); |
736 | ||
53222b90 MW |
737 | /* |
738 | * Fail the device init if the device is flagged NOSCAN at BOOT in | |
739 | * the NVRAM. This may speed up boot and maintain coherency with | |
740 | * BIOS device numbering. Clearing the flag allows the user to | |
741 | * rescan skipped devices later. We also return an error for | |
742 | * devices not flagged for SCAN LUNS in the NVRAM since some single | |
743 | * lun devices behave badly when asked for a non zero LUN. | |
744 | */ | |
745 | ||
66e8d1cc | 746 | if (tp->usrflags & SYM_SCAN_BOOT_DISABLED) { |
53222b90 | 747 | tp->usrflags &= ~SYM_SCAN_BOOT_DISABLED; |
fa858456 | 748 | starget_printk(KERN_INFO, sdev->sdev_target, |
66e8d1cc | 749 | "Scan at boot disabled in NVRAM\n"); |
fa858456 AK |
750 | error = -ENXIO; |
751 | goto out; | |
53222b90 MW |
752 | } |
753 | ||
66e8d1cc | 754 | if (tp->usrflags & SYM_SCAN_LUNS_DISABLED) { |
fa858456 AK |
755 | if (sdev->lun != 0) { |
756 | error = -ENXIO; | |
757 | goto out; | |
758 | } | |
759 | starget_printk(KERN_INFO, sdev->sdev_target, | |
66e8d1cc MW |
760 | "Multiple LUNs disabled in NVRAM\n"); |
761 | } | |
762 | ||
84e203a2 | 763 | lp = sym_alloc_lcb(np, sdev->id, sdev->lun); |
fa858456 AK |
764 | if (!lp) { |
765 | error = -ENOMEM; | |
766 | goto out; | |
767 | } | |
768 | if (tp->nlcb == 1) | |
769 | tp->starget = sdev->sdev_target; | |
84e203a2 | 770 | |
b37df489 MW |
771 | spi_min_period(tp->starget) = tp->usr_period; |
772 | spi_max_width(tp->starget) = tp->usr_width; | |
773 | ||
fa858456 AK |
774 | error = 0; |
775 | out: | |
776 | spin_unlock_irqrestore(np->s.host->host_lock, flags); | |
777 | ||
778 | return error; | |
1da177e4 LT |
779 | } |
780 | ||
781 | /* | |
782 | * Linux entry point for device queue sizing. | |
783 | */ | |
84e203a2 | 784 | static int sym53c8xx_slave_configure(struct scsi_device *sdev) |
1da177e4 | 785 | { |
84e203a2 MW |
786 | struct sym_hcb *np = sym_get_hcb(sdev->host); |
787 | struct sym_tcb *tp = &np->target[sdev->id]; | |
788 | struct sym_lcb *lp = sym_lp(tp, sdev->lun); | |
1da177e4 LT |
789 | int reqtags, depth_to_use; |
790 | ||
1da177e4 LT |
791 | /* |
792 | * Get user flags. | |
793 | */ | |
794 | lp->curr_flags = lp->user_flags; | |
795 | ||
796 | /* | |
797 | * Select queue depth from driver setup. | |
c2fd206e TB |
798 | * Do not use more than configured by user. |
799 | * Use at least 1. | |
800 | * Do not use more than our maximum. | |
1da177e4 | 801 | */ |
a44131b3 | 802 | reqtags = sym_driver_setup.max_tag; |
1da177e4 LT |
803 | if (reqtags > tp->usrtags) |
804 | reqtags = tp->usrtags; | |
84e203a2 | 805 | if (!sdev->tagged_supported) |
1da177e4 | 806 | reqtags = 0; |
1da177e4 LT |
807 | if (reqtags > SYM_CONF_MAX_TAG) |
808 | reqtags = SYM_CONF_MAX_TAG; | |
c2fd206e | 809 | depth_to_use = reqtags ? reqtags : 1; |
db5ed4df | 810 | scsi_change_queue_depth(sdev, depth_to_use); |
1da177e4 | 811 | lp->s.scdev_depth = depth_to_use; |
84e203a2 | 812 | sym_tune_dev_queuing(tp, sdev->lun, reqtags); |
1da177e4 | 813 | |
84e203a2 MW |
814 | if (!spi_initial_dv(sdev->sdev_target)) |
815 | spi_dv_device(sdev); | |
1da177e4 LT |
816 | |
817 | return 0; | |
818 | } | |
819 | ||
84e203a2 MW |
820 | static void sym53c8xx_slave_destroy(struct scsi_device *sdev) |
821 | { | |
822 | struct sym_hcb *np = sym_get_hcb(sdev->host); | |
fa858456 AK |
823 | struct sym_tcb *tp = &np->target[sdev->id]; |
824 | struct sym_lcb *lp = sym_lp(tp, sdev->lun); | |
825 | unsigned long flags; | |
84e203a2 | 826 | |
cced5041 SP |
827 | /* if slave_alloc returned before allocating a sym_lcb, return */ |
828 | if (!lp) | |
829 | return; | |
830 | ||
fa858456 AK |
831 | spin_lock_irqsave(np->s.host->host_lock, flags); |
832 | ||
833 | if (lp->busy_itlq || lp->busy_itl) { | |
834 | /* | |
835 | * This really shouldn't happen, but we can't return an error | |
836 | * so let's try to stop all on-going I/O. | |
837 | */ | |
838 | starget_printk(KERN_WARNING, tp->starget, | |
9cb78c16 | 839 | "Removing busy LCB (%d)\n", (u8)sdev->lun); |
fa858456 AK |
840 | sym_reset_scsi_bus(np, 1); |
841 | } | |
842 | ||
843 | if (sym_free_lcb(np, sdev->id, sdev->lun) == 0) { | |
844 | /* | |
845 | * It was the last unit for this target. | |
846 | */ | |
847 | tp->head.sval = 0; | |
848 | tp->head.wval = np->rv_scntl3; | |
849 | tp->head.uval = 0; | |
850 | tp->tgoal.check_nego = 1; | |
851 | tp->starget = NULL; | |
852 | } | |
853 | ||
854 | spin_unlock_irqrestore(np->s.host->host_lock, flags); | |
84e203a2 MW |
855 | } |
856 | ||
1da177e4 LT |
857 | /* |
858 | * Linux entry point for info() function | |
859 | */ | |
860 | static const char *sym53c8xx_info (struct Scsi_Host *host) | |
861 | { | |
862 | return SYM_DRIVER_NAME; | |
863 | } | |
864 | ||
865 | ||
866 | #ifdef SYM_LINUX_PROC_INFO_SUPPORT | |
867 | /* | |
868 | * Proc file system stuff | |
869 | * | |
870 | * A read operation returns adapter information. | |
871 | * A write operation is a control command. | |
872 | * The string is parsed in the driver code and the command is passed | |
873 | * to the sym_usercmd() function. | |
874 | */ | |
875 | ||
876 | #ifdef SYM_LINUX_USER_COMMAND_SUPPORT | |
877 | ||
878 | struct sym_usrcmd { | |
879 | u_long target; | |
880 | u_long lun; | |
881 | u_long data; | |
882 | u_long cmd; | |
883 | }; | |
884 | ||
885 | #define UC_SETSYNC 10 | |
886 | #define UC_SETTAGS 11 | |
887 | #define UC_SETDEBUG 12 | |
888 | #define UC_SETWIDE 14 | |
889 | #define UC_SETFLAG 15 | |
890 | #define UC_SETVERBOSE 17 | |
891 | #define UC_RESETDEV 18 | |
892 | #define UC_CLEARDEV 19 | |
893 | ||
894 | static void sym_exec_user_command (struct sym_hcb *np, struct sym_usrcmd *uc) | |
895 | { | |
896 | struct sym_tcb *tp; | |
897 | int t, l; | |
898 | ||
899 | switch (uc->cmd) { | |
900 | case 0: return; | |
901 | ||
902 | #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT | |
903 | case UC_SETDEBUG: | |
904 | sym_debug_flags = uc->data; | |
905 | break; | |
906 | #endif | |
907 | case UC_SETVERBOSE: | |
908 | np->verbose = uc->data; | |
909 | break; | |
910 | default: | |
911 | /* | |
912 | * We assume that other commands apply to targets. | |
913 | * This should always be the case and avoid the below | |
914 | * 4 lines to be repeated 6 times. | |
915 | */ | |
916 | for (t = 0; t < SYM_CONF_MAX_TARGET; t++) { | |
917 | if (!((uc->target >> t) & 1)) | |
918 | continue; | |
919 | tp = &np->target[t]; | |
fa858456 AK |
920 | if (!tp->nlcb) |
921 | continue; | |
1da177e4 LT |
922 | |
923 | switch (uc->cmd) { | |
924 | ||
925 | case UC_SETSYNC: | |
926 | if (!uc->data || uc->data >= 255) { | |
927 | tp->tgoal.iu = tp->tgoal.dt = | |
928 | tp->tgoal.qas = 0; | |
929 | tp->tgoal.offset = 0; | |
930 | } else if (uc->data <= 9 && np->minsync_dt) { | |
931 | if (uc->data < np->minsync_dt) | |
932 | uc->data = np->minsync_dt; | |
933 | tp->tgoal.iu = tp->tgoal.dt = | |
934 | tp->tgoal.qas = 1; | |
935 | tp->tgoal.width = 1; | |
936 | tp->tgoal.period = uc->data; | |
937 | tp->tgoal.offset = np->maxoffs_dt; | |
938 | } else { | |
939 | if (uc->data < np->minsync) | |
940 | uc->data = np->minsync; | |
941 | tp->tgoal.iu = tp->tgoal.dt = | |
942 | tp->tgoal.qas = 0; | |
943 | tp->tgoal.period = uc->data; | |
944 | tp->tgoal.offset = np->maxoffs; | |
945 | } | |
946 | tp->tgoal.check_nego = 1; | |
947 | break; | |
948 | case UC_SETWIDE: | |
949 | tp->tgoal.width = uc->data ? 1 : 0; | |
950 | tp->tgoal.check_nego = 1; | |
951 | break; | |
952 | case UC_SETTAGS: | |
953 | for (l = 0; l < SYM_CONF_MAX_LUN; l++) | |
954 | sym_tune_dev_queuing(tp, l, uc->data); | |
955 | break; | |
956 | case UC_RESETDEV: | |
957 | tp->to_reset = 1; | |
958 | np->istat_sem = SEM; | |
959 | OUTB(np, nc_istat, SIGP|SEM); | |
960 | break; | |
961 | case UC_CLEARDEV: | |
962 | for (l = 0; l < SYM_CONF_MAX_LUN; l++) { | |
963 | struct sym_lcb *lp = sym_lp(tp, l); | |
964 | if (lp) lp->to_clear = 1; | |
965 | } | |
966 | np->istat_sem = SEM; | |
967 | OUTB(np, nc_istat, SIGP|SEM); | |
968 | break; | |
969 | case UC_SETFLAG: | |
970 | tp->usrflags = uc->data; | |
971 | break; | |
972 | } | |
973 | } | |
974 | break; | |
975 | } | |
976 | } | |
977 | ||
4e62b093 | 978 | static int sym_skip_spaces(char *ptr, int len) |
1da177e4 LT |
979 | { |
980 | int cnt, c; | |
981 | ||
982 | for (cnt = len; cnt > 0 && (c = *ptr++) && isspace(c); cnt--); | |
983 | ||
984 | return (len - cnt); | |
985 | } | |
986 | ||
987 | static int get_int_arg(char *ptr, int len, u_long *pv) | |
988 | { | |
989 | char *end; | |
990 | ||
991 | *pv = simple_strtoul(ptr, &end, 10); | |
992 | return (end - ptr); | |
993 | } | |
994 | ||
995 | static int is_keyword(char *ptr, int len, char *verb) | |
996 | { | |
997 | int verb_len = strlen(verb); | |
998 | ||
999 | if (len >= verb_len && !memcmp(verb, ptr, verb_len)) | |
1000 | return verb_len; | |
1001 | else | |
1002 | return 0; | |
1003 | } | |
1004 | ||
1005 | #define SKIP_SPACES(ptr, len) \ | |
4e62b093 | 1006 | if ((arg_len = sym_skip_spaces(ptr, len)) < 1) \ |
1da177e4 LT |
1007 | return -EINVAL; \ |
1008 | ptr += arg_len; len -= arg_len; | |
1009 | ||
1010 | #define GET_INT_ARG(ptr, len, v) \ | |
1011 | if (!(arg_len = get_int_arg(ptr, len, &(v)))) \ | |
1012 | return -EINVAL; \ | |
1013 | ptr += arg_len; len -= arg_len; | |
1014 | ||
1015 | ||
1016 | /* | |
1017 | * Parse a control command | |
1018 | */ | |
1019 | ||
5111eefa | 1020 | static int sym_user_command(struct Scsi_Host *shost, char *buffer, int length) |
1da177e4 | 1021 | { |
5111eefa | 1022 | struct sym_hcb *np = sym_get_hcb(shost); |
1da177e4 LT |
1023 | char *ptr = buffer; |
1024 | int len = length; | |
1025 | struct sym_usrcmd cmd, *uc = &cmd; | |
1026 | int arg_len; | |
1027 | u_long target; | |
1028 | ||
1029 | memset(uc, 0, sizeof(*uc)); | |
1030 | ||
1031 | if (len > 0 && ptr[len-1] == '\n') | |
1032 | --len; | |
1033 | ||
1034 | if ((arg_len = is_keyword(ptr, len, "setsync")) != 0) | |
1035 | uc->cmd = UC_SETSYNC; | |
1036 | else if ((arg_len = is_keyword(ptr, len, "settags")) != 0) | |
1037 | uc->cmd = UC_SETTAGS; | |
1038 | else if ((arg_len = is_keyword(ptr, len, "setverbose")) != 0) | |
1039 | uc->cmd = UC_SETVERBOSE; | |
1040 | else if ((arg_len = is_keyword(ptr, len, "setwide")) != 0) | |
1041 | uc->cmd = UC_SETWIDE; | |
1042 | #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT | |
1043 | else if ((arg_len = is_keyword(ptr, len, "setdebug")) != 0) | |
1044 | uc->cmd = UC_SETDEBUG; | |
1045 | #endif | |
1046 | else if ((arg_len = is_keyword(ptr, len, "setflag")) != 0) | |
1047 | uc->cmd = UC_SETFLAG; | |
1048 | else if ((arg_len = is_keyword(ptr, len, "resetdev")) != 0) | |
1049 | uc->cmd = UC_RESETDEV; | |
1050 | else if ((arg_len = is_keyword(ptr, len, "cleardev")) != 0) | |
1051 | uc->cmd = UC_CLEARDEV; | |
1052 | else | |
1053 | arg_len = 0; | |
1054 | ||
1055 | #ifdef DEBUG_PROC_INFO | |
1056 | printk("sym_user_command: arg_len=%d, cmd=%ld\n", arg_len, uc->cmd); | |
1057 | #endif | |
1058 | ||
1059 | if (!arg_len) | |
1060 | return -EINVAL; | |
1061 | ptr += arg_len; len -= arg_len; | |
1062 | ||
1063 | switch(uc->cmd) { | |
1064 | case UC_SETSYNC: | |
1065 | case UC_SETTAGS: | |
1066 | case UC_SETWIDE: | |
1067 | case UC_SETFLAG: | |
1068 | case UC_RESETDEV: | |
1069 | case UC_CLEARDEV: | |
1070 | SKIP_SPACES(ptr, len); | |
1071 | if ((arg_len = is_keyword(ptr, len, "all")) != 0) { | |
1072 | ptr += arg_len; len -= arg_len; | |
1073 | uc->target = ~0; | |
1074 | } else { | |
1075 | GET_INT_ARG(ptr, len, target); | |
1076 | uc->target = (1<<target); | |
1077 | #ifdef DEBUG_PROC_INFO | |
1078 | printk("sym_user_command: target=%ld\n", target); | |
1079 | #endif | |
1080 | } | |
1081 | break; | |
1082 | } | |
1083 | ||
1084 | switch(uc->cmd) { | |
1085 | case UC_SETVERBOSE: | |
1086 | case UC_SETSYNC: | |
1087 | case UC_SETTAGS: | |
1088 | case UC_SETWIDE: | |
1089 | SKIP_SPACES(ptr, len); | |
1090 | GET_INT_ARG(ptr, len, uc->data); | |
1091 | #ifdef DEBUG_PROC_INFO | |
1092 | printk("sym_user_command: data=%ld\n", uc->data); | |
1093 | #endif | |
1094 | break; | |
1095 | #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT | |
1096 | case UC_SETDEBUG: | |
1097 | while (len > 0) { | |
1098 | SKIP_SPACES(ptr, len); | |
1099 | if ((arg_len = is_keyword(ptr, len, "alloc"))) | |
1100 | uc->data |= DEBUG_ALLOC; | |
1101 | else if ((arg_len = is_keyword(ptr, len, "phase"))) | |
1102 | uc->data |= DEBUG_PHASE; | |
1103 | else if ((arg_len = is_keyword(ptr, len, "queue"))) | |
1104 | uc->data |= DEBUG_QUEUE; | |
1105 | else if ((arg_len = is_keyword(ptr, len, "result"))) | |
1106 | uc->data |= DEBUG_RESULT; | |
1107 | else if ((arg_len = is_keyword(ptr, len, "scatter"))) | |
1108 | uc->data |= DEBUG_SCATTER; | |
1109 | else if ((arg_len = is_keyword(ptr, len, "script"))) | |
1110 | uc->data |= DEBUG_SCRIPT; | |
1111 | else if ((arg_len = is_keyword(ptr, len, "tiny"))) | |
1112 | uc->data |= DEBUG_TINY; | |
1113 | else if ((arg_len = is_keyword(ptr, len, "timing"))) | |
1114 | uc->data |= DEBUG_TIMING; | |
1115 | else if ((arg_len = is_keyword(ptr, len, "nego"))) | |
1116 | uc->data |= DEBUG_NEGO; | |
1117 | else if ((arg_len = is_keyword(ptr, len, "tags"))) | |
1118 | uc->data |= DEBUG_TAGS; | |
1119 | else if ((arg_len = is_keyword(ptr, len, "pointer"))) | |
1120 | uc->data |= DEBUG_POINTER; | |
1121 | else | |
1122 | return -EINVAL; | |
1123 | ptr += arg_len; len -= arg_len; | |
1124 | } | |
1125 | #ifdef DEBUG_PROC_INFO | |
1126 | printk("sym_user_command: data=%ld\n", uc->data); | |
1127 | #endif | |
1128 | break; | |
1129 | #endif /* SYM_LINUX_DEBUG_CONTROL_SUPPORT */ | |
1130 | case UC_SETFLAG: | |
1131 | while (len > 0) { | |
1132 | SKIP_SPACES(ptr, len); | |
1133 | if ((arg_len = is_keyword(ptr, len, "no_disc"))) | |
1134 | uc->data &= ~SYM_DISC_ENABLED; | |
1135 | else | |
1136 | return -EINVAL; | |
1137 | ptr += arg_len; len -= arg_len; | |
1138 | } | |
1139 | break; | |
1140 | default: | |
1141 | break; | |
1142 | } | |
1143 | ||
1144 | if (len) | |
1145 | return -EINVAL; | |
1146 | else { | |
1147 | unsigned long flags; | |
1148 | ||
5111eefa MW |
1149 | spin_lock_irqsave(shost->host_lock, flags); |
1150 | sym_exec_user_command(np, uc); | |
1151 | spin_unlock_irqrestore(shost->host_lock, flags); | |
1da177e4 LT |
1152 | } |
1153 | return length; | |
1154 | } | |
1155 | ||
1156 | #endif /* SYM_LINUX_USER_COMMAND_SUPPORT */ | |
1157 | ||
1158 | ||
1da177e4 LT |
1159 | /* |
1160 | * Copy formatted information into the input buffer. | |
1161 | */ | |
ee127fec | 1162 | static int sym_show_info(struct seq_file *m, struct Scsi_Host *shost) |
1da177e4 | 1163 | { |
ee127fec | 1164 | #ifdef SYM_LINUX_USER_INFO_SUPPORT |
5111eefa MW |
1165 | struct sym_data *sym_data = shost_priv(shost); |
1166 | struct pci_dev *pdev = sym_data->pdev; | |
1167 | struct sym_hcb *np = sym_data->ncb; | |
1da177e4 | 1168 | |
ee127fec AV |
1169 | seq_printf(m, "Chip " NAME53C "%s, device id 0x%x, " |
1170 | "revision id 0x%x\n", np->s.chip_name, | |
1171 | pdev->device, pdev->revision); | |
1172 | seq_printf(m, "At PCI address %s, IRQ %u\n", | |
5111eefa | 1173 | pci_name(pdev), pdev->irq); |
ee127fec AV |
1174 | seq_printf(m, "Min. period factor %d, %s SCSI BUS%s\n", |
1175 | (int) (np->minsync_dt ? np->minsync_dt : np->minsync), | |
1176 | np->maxwide ? "Wide" : "Narrow", | |
1177 | np->minsync_dt ? ", DT capable" : ""); | |
1da177e4 | 1178 | |
ee127fec AV |
1179 | seq_printf(m, "Max. started commands %d, " |
1180 | "max. commands per LUN %d\n", | |
1181 | SYM_CONF_MAX_START, SYM_CONF_MAX_TAG); | |
1da177e4 | 1182 | |
ee127fec | 1183 | return 0; |
1da177e4 | 1184 | #else |
ee127fec AV |
1185 | return -EINVAL; |
1186 | #endif /* SYM_LINUX_USER_INFO_SUPPORT */ | |
1da177e4 | 1187 | } |
ee127fec | 1188 | |
1da177e4 LT |
1189 | #endif /* SYM_LINUX_PROC_INFO_SUPPORT */ |
1190 | ||
a71d035d | 1191 | /* |
783fa731 | 1192 | * Free resources claimed by sym_iomap_device(). Note that |
a71d035d TB |
1193 | * sym_free_resources() should be used instead of this function after calling |
1194 | * sym_attach(). | |
1195 | */ | |
6f039790 | 1196 | static void sym_iounmap_device(struct sym_device *device) |
a71d035d TB |
1197 | { |
1198 | if (device->s.ioaddr) | |
1199 | pci_iounmap(device->pdev, device->s.ioaddr); | |
1200 | if (device->s.ramaddr) | |
1201 | pci_iounmap(device->pdev, device->s.ramaddr); | |
1202 | } | |
1203 | ||
1da177e4 LT |
1204 | /* |
1205 | * Free controller resources. | |
1206 | */ | |
b409063a TB |
1207 | static void sym_free_resources(struct sym_hcb *np, struct pci_dev *pdev, |
1208 | int do_free_irq) | |
1da177e4 LT |
1209 | { |
1210 | /* | |
1211 | * Free O/S specific resources. | |
1212 | */ | |
b409063a | 1213 | if (do_free_irq) |
7ee2413c | 1214 | free_irq(pdev->irq, np->s.host); |
1da177e4 LT |
1215 | if (np->s.ioaddr) |
1216 | pci_iounmap(pdev, np->s.ioaddr); | |
1217 | if (np->s.ramaddr) | |
1218 | pci_iounmap(pdev, np->s.ramaddr); | |
1219 | /* | |
1220 | * Free O/S independent resources. | |
1221 | */ | |
1222 | sym_hcb_free(np); | |
1223 | ||
1224 | sym_mfree_dma(np, sizeof(*np), "HCB"); | |
1225 | } | |
1226 | ||
1da177e4 LT |
1227 | /* |
1228 | * Host attach and initialisations. | |
1229 | * | |
1230 | * Allocate host data and ncb structure. | |
1231 | * Remap MMIO region. | |
1232 | * Do chip initialization. | |
1233 | * If all is OK, install interrupt handling and | |
1234 | * start the timer daemon. | |
1235 | */ | |
6f039790 GKH |
1236 | static struct Scsi_Host *sym_attach(struct scsi_host_template *tpnt, int unit, |
1237 | struct sym_device *dev) | |
1da177e4 | 1238 | { |
99c9e0a1 | 1239 | struct sym_data *sym_data; |
1da177e4 | 1240 | struct sym_hcb *np = NULL; |
a71d035d | 1241 | struct Scsi_Host *shost = NULL; |
1da177e4 LT |
1242 | struct pci_dev *pdev = dev->pdev; |
1243 | unsigned long flags; | |
1244 | struct sym_fw *fw; | |
b409063a | 1245 | int do_free_irq = 0; |
1da177e4 | 1246 | |
8022fbda | 1247 | printk(KERN_INFO "sym%d: <%s> rev 0x%x at pci %s irq %u\n", |
bd678450 | 1248 | unit, dev->chip.name, pdev->revision, pci_name(pdev), |
8022fbda | 1249 | pdev->irq); |
1da177e4 LT |
1250 | |
1251 | /* | |
1252 | * Get the firmware for this chip. | |
1253 | */ | |
1254 | fw = sym_find_firmware(&dev->chip); | |
1255 | if (!fw) | |
a71d035d | 1256 | goto attach_failed; |
1da177e4 | 1257 | |
99c9e0a1 MW |
1258 | shost = scsi_host_alloc(tpnt, sizeof(*sym_data)); |
1259 | if (!shost) | |
a71d035d | 1260 | goto attach_failed; |
99c9e0a1 | 1261 | sym_data = shost_priv(shost); |
1da177e4 LT |
1262 | |
1263 | /* | |
1264 | * Allocate immediately the host control block, | |
1265 | * since we are only expecting to succeed. :) | |
1266 | * We keep track in the HCB of all the resources that | |
1267 | * are to be released on error. | |
1268 | */ | |
1269 | np = __sym_calloc_dma(&pdev->dev, sizeof(*np), "HCB"); | |
1270 | if (!np) | |
1271 | goto attach_failed; | |
1da177e4 | 1272 | np->bus_dmat = &pdev->dev; /* Result in 1 DMA pool per HBA */ |
99c9e0a1 MW |
1273 | sym_data->ncb = np; |
1274 | sym_data->pdev = pdev; | |
1275 | np->s.host = shost; | |
1da177e4 | 1276 | |
5111eefa | 1277 | pci_set_drvdata(pdev, shost); |
1da177e4 LT |
1278 | |
1279 | /* | |
1280 | * Copy some useful infos to the HCB. | |
1281 | */ | |
1282 | np->hcb_ba = vtobus(np); | |
1283 | np->verbose = sym_driver_setup.verbose; | |
1da177e4 | 1284 | np->s.unit = unit; |
1da177e4 LT |
1285 | np->features = dev->chip.features; |
1286 | np->clock_divn = dev->chip.nr_divisor; | |
1287 | np->maxoffs = dev->chip.offset_max; | |
1288 | np->maxburst = dev->chip.burst_max; | |
1289 | np->myaddr = dev->host_id; | |
a71d035d | 1290 | np->mmio_ba = (u32)dev->mmio_base; |
783fa731 | 1291 | np->ram_ba = (u32)dev->ram_base; |
a71d035d TB |
1292 | np->s.ioaddr = dev->s.ioaddr; |
1293 | np->s.ramaddr = dev->s.ramaddr; | |
1da177e4 LT |
1294 | |
1295 | /* | |
1296 | * Edit its name. | |
1297 | */ | |
1298 | strlcpy(np->s.chip_name, dev->chip.name, sizeof(np->s.chip_name)); | |
1299 | sprintf(np->s.inst_name, "sym%d", np->s.unit); | |
1300 | ||
4d85b471 | 1301 | if ((SYM_CONF_DMA_ADDRESSING_MODE > 0) && (np->features & FE_DAC) && |
4e5598db | 1302 | !dma_set_mask(&pdev->dev, DMA_DAC_MASK)) { |
4d85b471 | 1303 | set_dac(np); |
4e5598db | 1304 | } else if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) { |
4d85b471 | 1305 | printf_warning("%s: No suitable DMA available\n", sym_name(np)); |
1da177e4 | 1306 | goto attach_failed; |
4d85b471 | 1307 | } |
1da177e4 | 1308 | |
99c9e0a1 | 1309 | if (sym_hcb_attach(shost, fw, dev->nvram)) |
1da177e4 LT |
1310 | goto attach_failed; |
1311 | ||
1312 | /* | |
1313 | * Install the interrupt handler. | |
1314 | * If we synchonize the C code with SCRIPTS on interrupt, | |
1315 | * we do not want to share the INTR line at all. | |
1316 | */ | |
99c9e0a1 MW |
1317 | if (request_irq(pdev->irq, sym53c8xx_intr, IRQF_SHARED, NAME53C8XX, |
1318 | shost)) { | |
8022fbda | 1319 | printf_err("%s: request irq %u failure\n", |
1da177e4 LT |
1320 | sym_name(np), pdev->irq); |
1321 | goto attach_failed; | |
1322 | } | |
b409063a | 1323 | do_free_irq = 1; |
1da177e4 LT |
1324 | |
1325 | /* | |
1326 | * After SCSI devices have been opened, we cannot | |
1327 | * reset the bus safely, so we do it here. | |
1328 | */ | |
99c9e0a1 | 1329 | spin_lock_irqsave(shost->host_lock, flags); |
1da177e4 LT |
1330 | if (sym_reset_scsi_bus(np, 0)) |
1331 | goto reset_failed; | |
1332 | ||
1333 | /* | |
1334 | * Start the SCRIPTS. | |
1335 | */ | |
5111eefa | 1336 | sym_start_up(shost, 1); |
1da177e4 LT |
1337 | |
1338 | /* | |
1339 | * Start the timer daemon | |
1340 | */ | |
86cb30ec | 1341 | timer_setup(&np->s.timer, sym53c8xx_timer, 0); |
1da177e4 LT |
1342 | np->s.lasttime=0; |
1343 | sym_timer (np); | |
1344 | ||
1345 | /* | |
1346 | * Fill Linux host instance structure | |
1347 | * and return success. | |
1348 | */ | |
99c9e0a1 MW |
1349 | shost->max_channel = 0; |
1350 | shost->this_id = np->myaddr; | |
1351 | shost->max_id = np->maxwide ? 16 : 8; | |
1352 | shost->max_lun = SYM_CONF_MAX_LUN; | |
1353 | shost->unique_id = pci_resource_start(pdev, 0); | |
1354 | shost->cmd_per_lun = SYM_CONF_MAX_TAG; | |
1355 | shost->can_queue = (SYM_CONF_MAX_START-2); | |
1356 | shost->sg_tablesize = SYM_CONF_MAX_SG; | |
1357 | shost->max_cmd_len = 16; | |
1da177e4 | 1358 | BUG_ON(sym2_transport_template == NULL); |
99c9e0a1 | 1359 | shost->transportt = sym2_transport_template; |
1da177e4 | 1360 | |
34996acc | 1361 | /* 53c896 rev 1 errata: DMA may not cross 16MB boundary */ |
bd678450 | 1362 | if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && pdev->revision < 2) |
99c9e0a1 | 1363 | shost->dma_boundary = 0xFFFFFF; |
34996acc | 1364 | |
99c9e0a1 | 1365 | spin_unlock_irqrestore(shost->host_lock, flags); |
1da177e4 | 1366 | |
99c9e0a1 | 1367 | return shost; |
1da177e4 LT |
1368 | |
1369 | reset_failed: | |
1370 | printf_err("%s: FATAL ERROR: CHECK SCSI BUS - CABLES, " | |
1371 | "TERMINATION, DEVICE POWER etc.!\n", sym_name(np)); | |
99c9e0a1 | 1372 | spin_unlock_irqrestore(shost->host_lock, flags); |
1da177e4 | 1373 | attach_failed: |
07b9d81e | 1374 | printf_info("sym%d: giving up ...\n", unit); |
1da177e4 | 1375 | if (np) |
b409063a | 1376 | sym_free_resources(np, pdev, do_free_irq); |
a71d035d TB |
1377 | else |
1378 | sym_iounmap_device(dev); | |
1379 | if (shost) | |
1380 | scsi_host_put(shost); | |
1da177e4 LT |
1381 | |
1382 | return NULL; | |
447a5647 | 1383 | } |
1da177e4 LT |
1384 | |
1385 | ||
1386 | /* | |
1387 | * Detect and try to read SYMBIOS and TEKRAM NVRAM. | |
1388 | */ | |
1389 | #if SYM_CONF_NVRAM_SUPPORT | |
6f039790 | 1390 | static void sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) |
1da177e4 LT |
1391 | { |
1392 | devp->nvram = nvp; | |
1da177e4 LT |
1393 | nvp->type = 0; |
1394 | ||
1395 | sym_read_nvram(devp, nvp); | |
1396 | } | |
1397 | #else | |
1398 | static inline void sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) | |
1399 | { | |
1400 | } | |
1401 | #endif /* SYM_CONF_NVRAM_SUPPORT */ | |
1402 | ||
6f039790 | 1403 | static int sym_check_supported(struct sym_device *device) |
1da177e4 LT |
1404 | { |
1405 | struct sym_chip *chip; | |
1406 | struct pci_dev *pdev = device->pdev; | |
1da177e4 LT |
1407 | unsigned long io_port = pci_resource_start(pdev, 0); |
1408 | int i; | |
1409 | ||
1410 | /* | |
1411 | * If user excluded this chip, do not initialize it. | |
1412 | * I hate this code so much. Must kill it. | |
1413 | */ | |
1414 | if (io_port) { | |
1415 | for (i = 0 ; i < 8 ; i++) { | |
1416 | if (sym_driver_setup.excludes[i] == io_port) | |
1417 | return -ENODEV; | |
1418 | } | |
1419 | } | |
1420 | ||
1421 | /* | |
1422 | * Check if the chip is supported. Then copy the chip description | |
1423 | * to our device structure so we can make it match the actual device | |
1424 | * and options. | |
1425 | */ | |
bd678450 | 1426 | chip = sym_lookup_chip_table(pdev->device, pdev->revision); |
1da177e4 LT |
1427 | if (!chip) { |
1428 | dev_info(&pdev->dev, "device not supported\n"); | |
1429 | return -ENODEV; | |
1430 | } | |
1431 | memcpy(&device->chip, chip, sizeof(device->chip)); | |
1da177e4 LT |
1432 | |
1433 | return 0; | |
1434 | } | |
1435 | ||
1436 | /* | |
1437 | * Ignore Symbios chips controlled by various RAID controllers. | |
1438 | * These controllers set value 0x52414944 at RAM end - 16. | |
1439 | */ | |
6f039790 | 1440 | static int sym_check_raid(struct sym_device *device) |
1da177e4 LT |
1441 | { |
1442 | unsigned int ram_size, ram_val; | |
1443 | ||
1444 | if (!device->s.ramaddr) | |
1445 | return 0; | |
1446 | ||
1447 | if (device->chip.features & FE_RAM8K) | |
1448 | ram_size = 8192; | |
1449 | else | |
1450 | ram_size = 4096; | |
1451 | ||
1452 | ram_val = readl(device->s.ramaddr + ram_size - 16); | |
1453 | if (ram_val != 0x52414944) | |
1454 | return 0; | |
1455 | ||
1456 | dev_info(&device->pdev->dev, | |
1457 | "not initializing, driven by RAID controller.\n"); | |
1458 | return -ENODEV; | |
1459 | } | |
1460 | ||
6f039790 | 1461 | static int sym_set_workarounds(struct sym_device *device) |
1da177e4 LT |
1462 | { |
1463 | struct sym_chip *chip = &device->chip; | |
1464 | struct pci_dev *pdev = device->pdev; | |
1465 | u_short status_reg; | |
1466 | ||
1467 | /* | |
1468 | * (ITEM 12 of a DEL about the 896 I haven't yet). | |
1469 | * We must ensure the chip will use WRITE AND INVALIDATE. | |
1470 | * The revision number limit is for now arbitrary. | |
1471 | */ | |
bd678450 | 1472 | if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && pdev->revision < 0x4) { |
1da177e4 LT |
1473 | chip->features |= (FE_WRIE | FE_CLSE); |
1474 | } | |
1475 | ||
1476 | /* If the chip can do Memory Write Invalidate, enable it */ | |
1477 | if (chip->features & FE_WRIE) { | |
1478 | if (pci_set_mwi(pdev)) | |
1479 | return -ENODEV; | |
1480 | } | |
1481 | ||
1482 | /* | |
1483 | * Work around for errant bit in 895A. The 66Mhz | |
1484 | * capable bit is set erroneously. Clear this bit. | |
1485 | * (Item 1 DEL 533) | |
1486 | * | |
1487 | * Make sure Config space and Features agree. | |
1488 | * | |
1489 | * Recall: writes are not normal to status register - | |
1490 | * write a 1 to clear and a 0 to leave unchanged. | |
1491 | * Can only reset bits. | |
1492 | */ | |
1493 | pci_read_config_word(pdev, PCI_STATUS, &status_reg); | |
1494 | if (chip->features & FE_66MHZ) { | |
1495 | if (!(status_reg & PCI_STATUS_66MHZ)) | |
1496 | chip->features &= ~FE_66MHZ; | |
1497 | } else { | |
1498 | if (status_reg & PCI_STATUS_66MHZ) { | |
1499 | status_reg = PCI_STATUS_66MHZ; | |
1500 | pci_write_config_word(pdev, PCI_STATUS, status_reg); | |
1501 | pci_read_config_word(pdev, PCI_STATUS, &status_reg); | |
1502 | } | |
1503 | } | |
1504 | ||
1505 | return 0; | |
1506 | } | |
1507 | ||
1508 | /* | |
783fa731 | 1509 | * Map HBA registers and on-chip SRAM (if present). |
1da177e4 | 1510 | */ |
6f039790 | 1511 | static int sym_iomap_device(struct sym_device *device) |
1da177e4 | 1512 | { |
783fa731 | 1513 | struct pci_dev *pdev = device->pdev; |
b6d105d7 | 1514 | struct pci_bus_region bus_addr; |
783fa731 | 1515 | int i = 2; |
1da177e4 | 1516 | |
fc279850 | 1517 | pcibios_resource_to_bus(pdev->bus, &bus_addr, &pdev->resource[1]); |
b6d105d7 MW |
1518 | device->mmio_base = bus_addr.start; |
1519 | ||
783fa731 TB |
1520 | if (device->chip.features & FE_RAM) { |
1521 | /* | |
1522 | * If the BAR is 64-bit, resource 2 will be occupied by the | |
1523 | * upper 32 bits | |
1524 | */ | |
1525 | if (!pdev->resource[i].flags) | |
1526 | i++; | |
fc279850 YL |
1527 | pcibios_resource_to_bus(pdev->bus, &bus_addr, |
1528 | &pdev->resource[i]); | |
783fa731 TB |
1529 | device->ram_base = bus_addr.start; |
1530 | } | |
1da177e4 | 1531 | |
1f61d824 | 1532 | #ifdef CONFIG_SCSI_SYM53C8XX_MMIO |
1da177e4 LT |
1533 | if (device->mmio_base) |
1534 | device->s.ioaddr = pci_iomap(pdev, 1, | |
1535 | pci_resource_len(pdev, 1)); | |
1536 | #endif | |
1537 | if (!device->s.ioaddr) | |
1538 | device->s.ioaddr = pci_iomap(pdev, 0, | |
1539 | pci_resource_len(pdev, 0)); | |
783fa731 TB |
1540 | if (!device->s.ioaddr) { |
1541 | dev_err(&pdev->dev, "could not map registers; giving up.\n"); | |
1542 | return -EIO; | |
1543 | } | |
1544 | if (device->ram_base) { | |
1da177e4 LT |
1545 | device->s.ramaddr = pci_iomap(pdev, i, |
1546 | pci_resource_len(pdev, i)); | |
783fa731 TB |
1547 | if (!device->s.ramaddr) { |
1548 | dev_warn(&pdev->dev, | |
1549 | "could not map SRAM; continuing anyway.\n"); | |
1550 | device->ram_base = 0; | |
1551 | } | |
1552 | } | |
1553 | ||
1554 | return 0; | |
1da177e4 LT |
1555 | } |
1556 | ||
1557 | /* | |
1558 | * The NCR PQS and PDS cards are constructed as a DEC bridge | |
1559 | * behind which sits a proprietary NCR memory controller and | |
1560 | * either four or two 53c875s as separate devices. We can tell | |
1561 | * if an 875 is part of a PQS/PDS or not since if it is, it will | |
1562 | * be on the same bus as the memory controller. In its usual | |
1563 | * mode of operation, the 875s are slaved to the memory | |
1564 | * controller for all transfers. To operate with the Linux | |
1565 | * driver, the memory controller is disabled and the 875s | |
1566 | * freed to function independently. The only wrinkle is that | |
1567 | * the preset SCSI ID (which may be zero) must be read in from | |
1568 | * a special configuration space register of the 875. | |
1569 | */ | |
1570 | static void sym_config_pqs(struct pci_dev *pdev, struct sym_device *sym_dev) | |
1571 | { | |
1572 | int slot; | |
1573 | u8 tmp; | |
1574 | ||
1575 | for (slot = 0; slot < 256; slot++) { | |
1576 | struct pci_dev *memc = pci_get_slot(pdev->bus, slot); | |
1577 | ||
1578 | if (!memc || memc->vendor != 0x101a || memc->device == 0x0009) { | |
1579 | pci_dev_put(memc); | |
1580 | continue; | |
1581 | } | |
1582 | ||
1583 | /* bit 1: allow individual 875 configuration */ | |
1584 | pci_read_config_byte(memc, 0x44, &tmp); | |
1585 | if ((tmp & 0x2) == 0) { | |
1586 | tmp |= 0x2; | |
1587 | pci_write_config_byte(memc, 0x44, tmp); | |
1588 | } | |
1589 | ||
1590 | /* bit 2: drive individual 875 interrupts to the bus */ | |
1591 | pci_read_config_byte(memc, 0x45, &tmp); | |
1592 | if ((tmp & 0x4) == 0) { | |
1593 | tmp |= 0x4; | |
1594 | pci_write_config_byte(memc, 0x45, tmp); | |
1595 | } | |
1596 | ||
1597 | pci_dev_put(memc); | |
1598 | break; | |
1599 | } | |
1600 | ||
1601 | pci_read_config_byte(pdev, 0x84, &tmp); | |
1602 | sym_dev->host_id = tmp; | |
1603 | } | |
1604 | ||
1605 | /* | |
1606 | * Called before unloading the module. | |
1607 | * Detach the host. | |
1608 | * We have to free resources and halt the NCR chip. | |
1609 | */ | |
5111eefa | 1610 | static int sym_detach(struct Scsi_Host *shost, struct pci_dev *pdev) |
1da177e4 | 1611 | { |
5111eefa | 1612 | struct sym_hcb *np = sym_get_hcb(shost); |
1da177e4 LT |
1613 | printk("%s: detaching ...\n", sym_name(np)); |
1614 | ||
1615 | del_timer_sync(&np->s.timer); | |
1616 | ||
1617 | /* | |
1618 | * Reset NCR chip. | |
1619 | * We should use sym_soft_reset(), but we don't want to do | |
1620 | * so, since we may not be safe if interrupts occur. | |
1621 | */ | |
1622 | printk("%s: resetting chip\n", sym_name(np)); | |
1623 | OUTB(np, nc_istat, SRST); | |
53222b90 | 1624 | INB(np, nc_mbox1); |
1da177e4 LT |
1625 | udelay(10); |
1626 | OUTB(np, nc_istat, 0); | |
1627 | ||
b409063a | 1628 | sym_free_resources(np, pdev, 1); |
d3ce65d1 | 1629 | scsi_host_put(shost); |
1da177e4 LT |
1630 | |
1631 | return 1; | |
1632 | } | |
1633 | ||
1634 | /* | |
1635 | * Driver host template. | |
1636 | */ | |
1637 | static struct scsi_host_template sym2_template = { | |
1638 | .module = THIS_MODULE, | |
1639 | .name = "sym53c8xx", | |
1640 | .info = sym53c8xx_info, | |
1641 | .queuecommand = sym53c8xx_queue_command, | |
1642 | .slave_alloc = sym53c8xx_slave_alloc, | |
1643 | .slave_configure = sym53c8xx_slave_configure, | |
84e203a2 | 1644 | .slave_destroy = sym53c8xx_slave_destroy, |
1da177e4 LT |
1645 | .eh_abort_handler = sym53c8xx_eh_abort_handler, |
1646 | .eh_device_reset_handler = sym53c8xx_eh_device_reset_handler, | |
1647 | .eh_bus_reset_handler = sym53c8xx_eh_bus_reset_handler, | |
1648 | .eh_host_reset_handler = sym53c8xx_eh_host_reset_handler, | |
1649 | .this_id = 7, | |
14ac8bf5 | 1650 | .max_sectors = 0xFFFF, |
1da177e4 | 1651 | #ifdef SYM_LINUX_PROC_INFO_SUPPORT |
ee127fec AV |
1652 | .show_info = sym_show_info, |
1653 | #ifdef SYM_LINUX_USER_COMMAND_SUPPORT | |
1654 | .write_info = sym_user_command, | |
1655 | #endif | |
1da177e4 LT |
1656 | .proc_name = NAME53C8XX, |
1657 | #endif | |
1658 | }; | |
1659 | ||
1660 | static int attach_count; | |
1661 | ||
6f039790 | 1662 | static int sym2_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
1da177e4 LT |
1663 | { |
1664 | struct sym_device sym_dev; | |
1665 | struct sym_nvram nvram; | |
99c9e0a1 | 1666 | struct Scsi_Host *shost; |
a71d035d TB |
1667 | int do_iounmap = 0; |
1668 | int do_disable_device = 1; | |
1da177e4 LT |
1669 | |
1670 | memset(&sym_dev, 0, sizeof(sym_dev)); | |
1671 | memset(&nvram, 0, sizeof(nvram)); | |
783fa731 TB |
1672 | sym_dev.pdev = pdev; |
1673 | sym_dev.host_id = SYM_SETUP_HOST_ID; | |
1da177e4 LT |
1674 | |
1675 | if (pci_enable_device(pdev)) | |
1676 | goto leave; | |
1677 | ||
1678 | pci_set_master(pdev); | |
1679 | ||
1680 | if (pci_request_regions(pdev, NAME53C8XX)) | |
1681 | goto disable; | |
1682 | ||
1da177e4 LT |
1683 | if (sym_check_supported(&sym_dev)) |
1684 | goto free; | |
1685 | ||
783fa731 TB |
1686 | if (sym_iomap_device(&sym_dev)) |
1687 | goto free; | |
1688 | do_iounmap = 1; | |
1689 | ||
a71d035d TB |
1690 | if (sym_check_raid(&sym_dev)) { |
1691 | do_disable_device = 0; /* Don't disable the device */ | |
1692 | goto free; | |
1693 | } | |
1da177e4 LT |
1694 | |
1695 | if (sym_set_workarounds(&sym_dev)) | |
1696 | goto free; | |
1697 | ||
1698 | sym_config_pqs(pdev, &sym_dev); | |
1699 | ||
1700 | sym_get_nvram(&sym_dev, &nvram); | |
1701 | ||
a71d035d | 1702 | do_iounmap = 0; /* Don't sym_iounmap_device() after sym_attach(). */ |
99c9e0a1 MW |
1703 | shost = sym_attach(&sym2_template, attach_count, &sym_dev); |
1704 | if (!shost) | |
1da177e4 LT |
1705 | goto free; |
1706 | ||
99c9e0a1 | 1707 | if (scsi_add_host(shost, &pdev->dev)) |
1da177e4 | 1708 | goto detach; |
99c9e0a1 | 1709 | scsi_scan_host(shost); |
1da177e4 LT |
1710 | |
1711 | attach_count++; | |
1712 | ||
1713 | return 0; | |
1714 | ||
1715 | detach: | |
1716 | sym_detach(pci_get_drvdata(pdev), pdev); | |
1717 | free: | |
a71d035d TB |
1718 | if (do_iounmap) |
1719 | sym_iounmap_device(&sym_dev); | |
1da177e4 LT |
1720 | pci_release_regions(pdev); |
1721 | disable: | |
a71d035d TB |
1722 | if (do_disable_device) |
1723 | pci_disable_device(pdev); | |
1da177e4 LT |
1724 | leave: |
1725 | return -ENODEV; | |
1726 | } | |
1727 | ||
864473bb | 1728 | static void sym2_remove(struct pci_dev *pdev) |
1da177e4 | 1729 | { |
5111eefa | 1730 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
1da177e4 | 1731 | |
5111eefa | 1732 | scsi_remove_host(shost); |
5111eefa | 1733 | sym_detach(shost, pdev); |
1da177e4 LT |
1734 | pci_release_regions(pdev); |
1735 | pci_disable_device(pdev); | |
1736 | ||
1737 | attach_count--; | |
1738 | } | |
1739 | ||
d68cd759 LV |
1740 | /** |
1741 | * sym2_io_error_detected() - called when PCI error is detected | |
1742 | * @pdev: pointer to PCI device | |
1743 | * @state: current state of the PCI slot | |
1744 | */ | |
1745 | static pci_ers_result_t sym2_io_error_detected(struct pci_dev *pdev, | |
1746 | enum pci_channel_state state) | |
1747 | { | |
1748 | /* If slot is permanently frozen, turn everything off */ | |
1749 | if (state == pci_channel_io_perm_failure) { | |
1750 | sym2_remove(pdev); | |
1751 | return PCI_ERS_RESULT_DISCONNECT; | |
1752 | } | |
1753 | ||
1754 | disable_irq(pdev->irq); | |
1755 | pci_disable_device(pdev); | |
1756 | ||
1757 | /* Request that MMIO be enabled, so register dump can be taken. */ | |
1758 | return PCI_ERS_RESULT_CAN_RECOVER; | |
1759 | } | |
1760 | ||
1761 | /** | |
1762 | * sym2_io_slot_dump - Enable MMIO and dump debug registers | |
1763 | * @pdev: pointer to PCI device | |
1764 | */ | |
1765 | static pci_ers_result_t sym2_io_slot_dump(struct pci_dev *pdev) | |
1766 | { | |
5111eefa | 1767 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
d68cd759 | 1768 | |
5111eefa | 1769 | sym_dump_registers(shost); |
d68cd759 LV |
1770 | |
1771 | /* Request a slot reset. */ | |
1772 | return PCI_ERS_RESULT_NEED_RESET; | |
1773 | } | |
1774 | ||
1775 | /** | |
1776 | * sym2_reset_workarounds - hardware-specific work-arounds | |
1777 | * | |
1778 | * This routine is similar to sym_set_workarounds(), except | |
1779 | * that, at this point, we already know that the device was | |
b595076a | 1780 | * successfully initialized at least once before, and so most |
d68cd759 LV |
1781 | * of the steps taken there are un-needed here. |
1782 | */ | |
1783 | static void sym2_reset_workarounds(struct pci_dev *pdev) | |
1784 | { | |
d68cd759 LV |
1785 | u_short status_reg; |
1786 | struct sym_chip *chip; | |
1787 | ||
bd678450 | 1788 | chip = sym_lookup_chip_table(pdev->device, pdev->revision); |
d68cd759 LV |
1789 | |
1790 | /* Work around for errant bit in 895A, in a fashion | |
1791 | * similar to what is done in sym_set_workarounds(). | |
1792 | */ | |
1793 | pci_read_config_word(pdev, PCI_STATUS, &status_reg); | |
1794 | if (!(chip->features & FE_66MHZ) && (status_reg & PCI_STATUS_66MHZ)) { | |
1795 | status_reg = PCI_STATUS_66MHZ; | |
1796 | pci_write_config_word(pdev, PCI_STATUS, status_reg); | |
1797 | pci_read_config_word(pdev, PCI_STATUS, &status_reg); | |
1798 | } | |
1799 | } | |
1800 | ||
1801 | /** | |
1802 | * sym2_io_slot_reset() - called when the pci bus has been reset. | |
1803 | * @pdev: pointer to PCI device | |
1804 | * | |
1805 | * Restart the card from scratch. | |
1806 | */ | |
1807 | static pci_ers_result_t sym2_io_slot_reset(struct pci_dev *pdev) | |
1808 | { | |
5111eefa MW |
1809 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
1810 | struct sym_hcb *np = sym_get_hcb(shost); | |
d68cd759 LV |
1811 | |
1812 | printk(KERN_INFO "%s: recovering from a PCI slot reset\n", | |
1813 | sym_name(np)); | |
1814 | ||
1815 | if (pci_enable_device(pdev)) { | |
1816 | printk(KERN_ERR "%s: Unable to enable after PCI reset\n", | |
1817 | sym_name(np)); | |
1818 | return PCI_ERS_RESULT_DISCONNECT; | |
1819 | } | |
1820 | ||
1821 | pci_set_master(pdev); | |
1822 | enable_irq(pdev->irq); | |
1823 | ||
1824 | /* If the chip can do Memory Write Invalidate, enable it */ | |
1825 | if (np->features & FE_WRIE) { | |
1826 | if (pci_set_mwi(pdev)) | |
1827 | return PCI_ERS_RESULT_DISCONNECT; | |
1828 | } | |
1829 | ||
1830 | /* Perform work-arounds, analogous to sym_set_workarounds() */ | |
1831 | sym2_reset_workarounds(pdev); | |
1832 | ||
1833 | /* Perform host reset only on one instance of the card */ | |
1834 | if (PCI_FUNC(pdev->devfn) == 0) { | |
1835 | if (sym_reset_scsi_bus(np, 0)) { | |
1836 | printk(KERN_ERR "%s: Unable to reset scsi host\n", | |
1837 | sym_name(np)); | |
1838 | return PCI_ERS_RESULT_DISCONNECT; | |
1839 | } | |
5111eefa | 1840 | sym_start_up(shost, 1); |
d68cd759 LV |
1841 | } |
1842 | ||
1843 | return PCI_ERS_RESULT_RECOVERED; | |
1844 | } | |
1845 | ||
1846 | /** | |
1847 | * sym2_io_resume() - resume normal ops after PCI reset | |
1848 | * @pdev: pointer to PCI device | |
1849 | * | |
1850 | * Called when the error recovery driver tells us that its | |
1851 | * OK to resume normal operation. Use completion to allow | |
1852 | * halted scsi ops to resume. | |
1853 | */ | |
1854 | static void sym2_io_resume(struct pci_dev *pdev) | |
1855 | { | |
5111eefa | 1856 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
99c9e0a1 | 1857 | struct sym_data *sym_data = shost_priv(shost); |
d68cd759 LV |
1858 | |
1859 | spin_lock_irq(shost->host_lock); | |
99c9e0a1 | 1860 | if (sym_data->io_reset) |
ba2f1293 | 1861 | complete(sym_data->io_reset); |
d68cd759 LV |
1862 | spin_unlock_irq(shost->host_lock); |
1863 | } | |
1864 | ||
1da177e4 LT |
1865 | static void sym2_get_signalling(struct Scsi_Host *shost) |
1866 | { | |
1867 | struct sym_hcb *np = sym_get_hcb(shost); | |
1868 | enum spi_signal_type type; | |
1869 | ||
1870 | switch (np->scsi_mode) { | |
1871 | case SMODE_SE: | |
1872 | type = SPI_SIGNAL_SE; | |
1873 | break; | |
1874 | case SMODE_LVD: | |
1875 | type = SPI_SIGNAL_LVD; | |
1876 | break; | |
1877 | case SMODE_HVD: | |
1878 | type = SPI_SIGNAL_HVD; | |
1879 | break; | |
1880 | default: | |
1881 | type = SPI_SIGNAL_UNKNOWN; | |
1882 | break; | |
1883 | } | |
1884 | spi_signalling(shost) = type; | |
1885 | } | |
1886 | ||
1887 | static void sym2_set_offset(struct scsi_target *starget, int offset) | |
1888 | { | |
1889 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1890 | struct sym_hcb *np = sym_get_hcb(shost); | |
1891 | struct sym_tcb *tp = &np->target[starget->id]; | |
1892 | ||
1893 | tp->tgoal.offset = offset; | |
1894 | tp->tgoal.check_nego = 1; | |
1895 | } | |
1896 | ||
1897 | static void sym2_set_period(struct scsi_target *starget, int period) | |
1898 | { | |
1899 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1900 | struct sym_hcb *np = sym_get_hcb(shost); | |
1901 | struct sym_tcb *tp = &np->target[starget->id]; | |
1902 | ||
e4862fed JB |
1903 | /* have to have DT for these transfers, but DT will also |
1904 | * set width, so check that this is allowed */ | |
1905 | if (period <= np->minsync && spi_width(starget)) | |
1da177e4 LT |
1906 | tp->tgoal.dt = 1; |
1907 | ||
1908 | tp->tgoal.period = period; | |
1909 | tp->tgoal.check_nego = 1; | |
1910 | } | |
1911 | ||
1912 | static void sym2_set_width(struct scsi_target *starget, int width) | |
1913 | { | |
1914 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1915 | struct sym_hcb *np = sym_get_hcb(shost); | |
1916 | struct sym_tcb *tp = &np->target[starget->id]; | |
1917 | ||
1918 | /* It is illegal to have DT set on narrow transfers. If DT is | |
1919 | * clear, we must also clear IU and QAS. */ | |
1920 | if (width == 0) | |
1921 | tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0; | |
1922 | ||
1923 | tp->tgoal.width = width; | |
1924 | tp->tgoal.check_nego = 1; | |
1925 | } | |
1926 | ||
1927 | static void sym2_set_dt(struct scsi_target *starget, int dt) | |
1928 | { | |
1929 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1930 | struct sym_hcb *np = sym_get_hcb(shost); | |
1931 | struct sym_tcb *tp = &np->target[starget->id]; | |
1932 | ||
1933 | /* We must clear QAS and IU if DT is clear */ | |
1934 | if (dt) | |
1935 | tp->tgoal.dt = 1; | |
1936 | else | |
1937 | tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0; | |
1938 | tp->tgoal.check_nego = 1; | |
1939 | } | |
1940 | ||
8b2f8138 | 1941 | #if 0 |
1da177e4 LT |
1942 | static void sym2_set_iu(struct scsi_target *starget, int iu) |
1943 | { | |
1944 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1945 | struct sym_hcb *np = sym_get_hcb(shost); | |
1946 | struct sym_tcb *tp = &np->target[starget->id]; | |
1947 | ||
1948 | if (iu) | |
1949 | tp->tgoal.iu = tp->tgoal.dt = 1; | |
1950 | else | |
1951 | tp->tgoal.iu = 0; | |
1952 | tp->tgoal.check_nego = 1; | |
1953 | } | |
1954 | ||
1955 | static void sym2_set_qas(struct scsi_target *starget, int qas) | |
1956 | { | |
1957 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1958 | struct sym_hcb *np = sym_get_hcb(shost); | |
1959 | struct sym_tcb *tp = &np->target[starget->id]; | |
1960 | ||
1961 | if (qas) | |
1962 | tp->tgoal.dt = tp->tgoal.qas = 1; | |
1963 | else | |
1964 | tp->tgoal.qas = 0; | |
1965 | tp->tgoal.check_nego = 1; | |
1966 | } | |
8b2f8138 | 1967 | #endif |
1da177e4 LT |
1968 | |
1969 | static struct spi_function_template sym2_transport_functions = { | |
1970 | .set_offset = sym2_set_offset, | |
1971 | .show_offset = 1, | |
1972 | .set_period = sym2_set_period, | |
1973 | .show_period = 1, | |
1974 | .set_width = sym2_set_width, | |
1975 | .show_width = 1, | |
1976 | .set_dt = sym2_set_dt, | |
1977 | .show_dt = 1, | |
8b2f8138 | 1978 | #if 0 |
1da177e4 LT |
1979 | .set_iu = sym2_set_iu, |
1980 | .show_iu = 1, | |
1981 | .set_qas = sym2_set_qas, | |
1982 | .show_qas = 1, | |
8b2f8138 | 1983 | #endif |
1da177e4 LT |
1984 | .get_signalling = sym2_get_signalling, |
1985 | }; | |
1986 | ||
6f039790 | 1987 | static struct pci_device_id sym2_id_table[] = { |
1da177e4 LT |
1988 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C810, |
1989 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
1990 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C820, | |
1991 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */ | |
1992 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C825, | |
1993 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
1994 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C815, | |
1995 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
1996 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C810AP, | |
1997 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */ | |
1998 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C860, | |
1999 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2000 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1510, | |
b2b3c121 | 2001 | PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8, 0xffff00, 0UL }, |
1da177e4 LT |
2002 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C896, |
2003 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2004 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C895, | |
2005 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2006 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C885, | |
2007 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2008 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875, | |
2009 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2010 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C1510, | |
147e505e | 2011 | PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8, 0xffff00, 0UL }, /* new */ |
1da177e4 LT |
2012 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C895A, |
2013 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2014 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C875A, | |
2015 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2016 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_33, | |
2017 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2018 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_66, | |
2019 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2020 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875J, | |
2021 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2022 | { 0, } | |
2023 | }; | |
2024 | ||
2025 | MODULE_DEVICE_TABLE(pci, sym2_id_table); | |
2026 | ||
a55b2d21 | 2027 | static const struct pci_error_handlers sym2_err_handler = { |
d68cd759 LV |
2028 | .error_detected = sym2_io_error_detected, |
2029 | .mmio_enabled = sym2_io_slot_dump, | |
2030 | .slot_reset = sym2_io_slot_reset, | |
2031 | .resume = sym2_io_resume, | |
2032 | }; | |
2033 | ||
1da177e4 LT |
2034 | static struct pci_driver sym2_driver = { |
2035 | .name = NAME53C8XX, | |
2036 | .id_table = sym2_id_table, | |
2037 | .probe = sym2_probe, | |
864473bb | 2038 | .remove = sym2_remove, |
d68cd759 | 2039 | .err_handler = &sym2_err_handler, |
1da177e4 LT |
2040 | }; |
2041 | ||
2042 | static int __init sym2_init(void) | |
2043 | { | |
2044 | int error; | |
2045 | ||
2046 | sym2_setup_params(); | |
2047 | sym2_transport_template = spi_attach_transport(&sym2_transport_functions); | |
2048 | if (!sym2_transport_template) | |
2049 | return -ENODEV; | |
2050 | ||
2051 | error = pci_register_driver(&sym2_driver); | |
2052 | if (error) | |
2053 | spi_release_transport(sym2_transport_template); | |
2054 | return error; | |
2055 | } | |
2056 | ||
2057 | static void __exit sym2_exit(void) | |
2058 | { | |
2059 | pci_unregister_driver(&sym2_driver); | |
2060 | spi_release_transport(sym2_transport_template); | |
2061 | } | |
2062 | ||
2063 | module_init(sym2_init); | |
2064 | module_exit(sym2_exit); |