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; | |
fa858456 AK |
740 | unsigned long flags; |
741 | int error; | |
1da177e4 | 742 | |
53222b90 MW |
743 | if (sdev->id >= SYM_CONF_MAX_TARGET || sdev->lun >= SYM_CONF_MAX_LUN) |
744 | return -ENXIO; | |
1da177e4 | 745 | |
fa858456 AK |
746 | spin_lock_irqsave(np->s.host->host_lock, flags); |
747 | ||
53222b90 MW |
748 | /* |
749 | * Fail the device init if the device is flagged NOSCAN at BOOT in | |
750 | * the NVRAM. This may speed up boot and maintain coherency with | |
751 | * BIOS device numbering. Clearing the flag allows the user to | |
752 | * rescan skipped devices later. We also return an error for | |
753 | * devices not flagged for SCAN LUNS in the NVRAM since some single | |
754 | * lun devices behave badly when asked for a non zero LUN. | |
755 | */ | |
756 | ||
66e8d1cc | 757 | if (tp->usrflags & SYM_SCAN_BOOT_DISABLED) { |
53222b90 | 758 | tp->usrflags &= ~SYM_SCAN_BOOT_DISABLED; |
fa858456 | 759 | starget_printk(KERN_INFO, sdev->sdev_target, |
66e8d1cc | 760 | "Scan at boot disabled in NVRAM\n"); |
fa858456 AK |
761 | error = -ENXIO; |
762 | goto out; | |
53222b90 MW |
763 | } |
764 | ||
66e8d1cc | 765 | if (tp->usrflags & SYM_SCAN_LUNS_DISABLED) { |
fa858456 AK |
766 | if (sdev->lun != 0) { |
767 | error = -ENXIO; | |
768 | goto out; | |
769 | } | |
770 | starget_printk(KERN_INFO, sdev->sdev_target, | |
66e8d1cc MW |
771 | "Multiple LUNs disabled in NVRAM\n"); |
772 | } | |
773 | ||
84e203a2 | 774 | lp = sym_alloc_lcb(np, sdev->id, sdev->lun); |
fa858456 AK |
775 | if (!lp) { |
776 | error = -ENOMEM; | |
777 | goto out; | |
778 | } | |
779 | if (tp->nlcb == 1) | |
780 | tp->starget = sdev->sdev_target; | |
84e203a2 | 781 | |
b37df489 MW |
782 | spi_min_period(tp->starget) = tp->usr_period; |
783 | spi_max_width(tp->starget) = tp->usr_width; | |
784 | ||
fa858456 AK |
785 | error = 0; |
786 | out: | |
787 | spin_unlock_irqrestore(np->s.host->host_lock, flags); | |
788 | ||
789 | return error; | |
1da177e4 LT |
790 | } |
791 | ||
792 | /* | |
793 | * Linux entry point for device queue sizing. | |
794 | */ | |
84e203a2 | 795 | static int sym53c8xx_slave_configure(struct scsi_device *sdev) |
1da177e4 | 796 | { |
84e203a2 MW |
797 | struct sym_hcb *np = sym_get_hcb(sdev->host); |
798 | struct sym_tcb *tp = &np->target[sdev->id]; | |
799 | struct sym_lcb *lp = sym_lp(tp, sdev->lun); | |
1da177e4 LT |
800 | int reqtags, depth_to_use; |
801 | ||
1da177e4 LT |
802 | /* |
803 | * Get user flags. | |
804 | */ | |
805 | lp->curr_flags = lp->user_flags; | |
806 | ||
807 | /* | |
808 | * Select queue depth from driver setup. | |
c2fd206e TB |
809 | * Do not use more than configured by user. |
810 | * Use at least 1. | |
811 | * Do not use more than our maximum. | |
1da177e4 | 812 | */ |
a44131b3 | 813 | reqtags = sym_driver_setup.max_tag; |
1da177e4 LT |
814 | if (reqtags > tp->usrtags) |
815 | reqtags = tp->usrtags; | |
84e203a2 | 816 | if (!sdev->tagged_supported) |
1da177e4 | 817 | reqtags = 0; |
1da177e4 LT |
818 | if (reqtags > SYM_CONF_MAX_TAG) |
819 | reqtags = SYM_CONF_MAX_TAG; | |
c2fd206e | 820 | depth_to_use = reqtags ? reqtags : 1; |
84e203a2 | 821 | scsi_adjust_queue_depth(sdev, |
a44131b3 | 822 | sdev->tagged_supported ? MSG_SIMPLE_TAG : 0, |
1da177e4 LT |
823 | depth_to_use); |
824 | lp->s.scdev_depth = depth_to_use; | |
84e203a2 | 825 | sym_tune_dev_queuing(tp, sdev->lun, reqtags); |
1da177e4 | 826 | |
84e203a2 MW |
827 | if (!spi_initial_dv(sdev->sdev_target)) |
828 | spi_dv_device(sdev); | |
1da177e4 LT |
829 | |
830 | return 0; | |
831 | } | |
832 | ||
84e203a2 MW |
833 | static void sym53c8xx_slave_destroy(struct scsi_device *sdev) |
834 | { | |
835 | struct sym_hcb *np = sym_get_hcb(sdev->host); | |
fa858456 AK |
836 | struct sym_tcb *tp = &np->target[sdev->id]; |
837 | struct sym_lcb *lp = sym_lp(tp, sdev->lun); | |
838 | unsigned long flags; | |
84e203a2 | 839 | |
fa858456 AK |
840 | spin_lock_irqsave(np->s.host->host_lock, flags); |
841 | ||
842 | if (lp->busy_itlq || lp->busy_itl) { | |
843 | /* | |
844 | * This really shouldn't happen, but we can't return an error | |
845 | * so let's try to stop all on-going I/O. | |
846 | */ | |
847 | starget_printk(KERN_WARNING, tp->starget, | |
848 | "Removing busy LCB (%d)\n", sdev->lun); | |
849 | sym_reset_scsi_bus(np, 1); | |
850 | } | |
851 | ||
852 | if (sym_free_lcb(np, sdev->id, sdev->lun) == 0) { | |
853 | /* | |
854 | * It was the last unit for this target. | |
855 | */ | |
856 | tp->head.sval = 0; | |
857 | tp->head.wval = np->rv_scntl3; | |
858 | tp->head.uval = 0; | |
859 | tp->tgoal.check_nego = 1; | |
860 | tp->starget = NULL; | |
861 | } | |
862 | ||
863 | spin_unlock_irqrestore(np->s.host->host_lock, flags); | |
84e203a2 MW |
864 | } |
865 | ||
1da177e4 LT |
866 | /* |
867 | * Linux entry point for info() function | |
868 | */ | |
869 | static const char *sym53c8xx_info (struct Scsi_Host *host) | |
870 | { | |
871 | return SYM_DRIVER_NAME; | |
872 | } | |
873 | ||
874 | ||
875 | #ifdef SYM_LINUX_PROC_INFO_SUPPORT | |
876 | /* | |
877 | * Proc file system stuff | |
878 | * | |
879 | * A read operation returns adapter information. | |
880 | * A write operation is a control command. | |
881 | * The string is parsed in the driver code and the command is passed | |
882 | * to the sym_usercmd() function. | |
883 | */ | |
884 | ||
885 | #ifdef SYM_LINUX_USER_COMMAND_SUPPORT | |
886 | ||
887 | struct sym_usrcmd { | |
888 | u_long target; | |
889 | u_long lun; | |
890 | u_long data; | |
891 | u_long cmd; | |
892 | }; | |
893 | ||
894 | #define UC_SETSYNC 10 | |
895 | #define UC_SETTAGS 11 | |
896 | #define UC_SETDEBUG 12 | |
897 | #define UC_SETWIDE 14 | |
898 | #define UC_SETFLAG 15 | |
899 | #define UC_SETVERBOSE 17 | |
900 | #define UC_RESETDEV 18 | |
901 | #define UC_CLEARDEV 19 | |
902 | ||
903 | static void sym_exec_user_command (struct sym_hcb *np, struct sym_usrcmd *uc) | |
904 | { | |
905 | struct sym_tcb *tp; | |
906 | int t, l; | |
907 | ||
908 | switch (uc->cmd) { | |
909 | case 0: return; | |
910 | ||
911 | #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT | |
912 | case UC_SETDEBUG: | |
913 | sym_debug_flags = uc->data; | |
914 | break; | |
915 | #endif | |
916 | case UC_SETVERBOSE: | |
917 | np->verbose = uc->data; | |
918 | break; | |
919 | default: | |
920 | /* | |
921 | * We assume that other commands apply to targets. | |
922 | * This should always be the case and avoid the below | |
923 | * 4 lines to be repeated 6 times. | |
924 | */ | |
925 | for (t = 0; t < SYM_CONF_MAX_TARGET; t++) { | |
926 | if (!((uc->target >> t) & 1)) | |
927 | continue; | |
928 | tp = &np->target[t]; | |
fa858456 AK |
929 | if (!tp->nlcb) |
930 | continue; | |
1da177e4 LT |
931 | |
932 | switch (uc->cmd) { | |
933 | ||
934 | case UC_SETSYNC: | |
935 | if (!uc->data || uc->data >= 255) { | |
936 | tp->tgoal.iu = tp->tgoal.dt = | |
937 | tp->tgoal.qas = 0; | |
938 | tp->tgoal.offset = 0; | |
939 | } else if (uc->data <= 9 && np->minsync_dt) { | |
940 | if (uc->data < np->minsync_dt) | |
941 | uc->data = np->minsync_dt; | |
942 | tp->tgoal.iu = tp->tgoal.dt = | |
943 | tp->tgoal.qas = 1; | |
944 | tp->tgoal.width = 1; | |
945 | tp->tgoal.period = uc->data; | |
946 | tp->tgoal.offset = np->maxoffs_dt; | |
947 | } else { | |
948 | if (uc->data < np->minsync) | |
949 | uc->data = np->minsync; | |
950 | tp->tgoal.iu = tp->tgoal.dt = | |
951 | tp->tgoal.qas = 0; | |
952 | tp->tgoal.period = uc->data; | |
953 | tp->tgoal.offset = np->maxoffs; | |
954 | } | |
955 | tp->tgoal.check_nego = 1; | |
956 | break; | |
957 | case UC_SETWIDE: | |
958 | tp->tgoal.width = uc->data ? 1 : 0; | |
959 | tp->tgoal.check_nego = 1; | |
960 | break; | |
961 | case UC_SETTAGS: | |
962 | for (l = 0; l < SYM_CONF_MAX_LUN; l++) | |
963 | sym_tune_dev_queuing(tp, l, uc->data); | |
964 | break; | |
965 | case UC_RESETDEV: | |
966 | tp->to_reset = 1; | |
967 | np->istat_sem = SEM; | |
968 | OUTB(np, nc_istat, SIGP|SEM); | |
969 | break; | |
970 | case UC_CLEARDEV: | |
971 | for (l = 0; l < SYM_CONF_MAX_LUN; l++) { | |
972 | struct sym_lcb *lp = sym_lp(tp, l); | |
973 | if (lp) lp->to_clear = 1; | |
974 | } | |
975 | np->istat_sem = SEM; | |
976 | OUTB(np, nc_istat, SIGP|SEM); | |
977 | break; | |
978 | case UC_SETFLAG: | |
979 | tp->usrflags = uc->data; | |
980 | break; | |
981 | } | |
982 | } | |
983 | break; | |
984 | } | |
985 | } | |
986 | ||
987 | static int skip_spaces(char *ptr, int len) | |
988 | { | |
989 | int cnt, c; | |
990 | ||
991 | for (cnt = len; cnt > 0 && (c = *ptr++) && isspace(c); cnt--); | |
992 | ||
993 | return (len - cnt); | |
994 | } | |
995 | ||
996 | static int get_int_arg(char *ptr, int len, u_long *pv) | |
997 | { | |
998 | char *end; | |
999 | ||
1000 | *pv = simple_strtoul(ptr, &end, 10); | |
1001 | return (end - ptr); | |
1002 | } | |
1003 | ||
1004 | static int is_keyword(char *ptr, int len, char *verb) | |
1005 | { | |
1006 | int verb_len = strlen(verb); | |
1007 | ||
1008 | if (len >= verb_len && !memcmp(verb, ptr, verb_len)) | |
1009 | return verb_len; | |
1010 | else | |
1011 | return 0; | |
1012 | } | |
1013 | ||
1014 | #define SKIP_SPACES(ptr, len) \ | |
1015 | if ((arg_len = skip_spaces(ptr, len)) < 1) \ | |
1016 | return -EINVAL; \ | |
1017 | ptr += arg_len; len -= arg_len; | |
1018 | ||
1019 | #define GET_INT_ARG(ptr, len, v) \ | |
1020 | if (!(arg_len = get_int_arg(ptr, len, &(v)))) \ | |
1021 | return -EINVAL; \ | |
1022 | ptr += arg_len; len -= arg_len; | |
1023 | ||
1024 | ||
1025 | /* | |
1026 | * Parse a control command | |
1027 | */ | |
1028 | ||
5111eefa | 1029 | static int sym_user_command(struct Scsi_Host *shost, char *buffer, int length) |
1da177e4 | 1030 | { |
5111eefa | 1031 | struct sym_hcb *np = sym_get_hcb(shost); |
1da177e4 LT |
1032 | char *ptr = buffer; |
1033 | int len = length; | |
1034 | struct sym_usrcmd cmd, *uc = &cmd; | |
1035 | int arg_len; | |
1036 | u_long target; | |
1037 | ||
1038 | memset(uc, 0, sizeof(*uc)); | |
1039 | ||
1040 | if (len > 0 && ptr[len-1] == '\n') | |
1041 | --len; | |
1042 | ||
1043 | if ((arg_len = is_keyword(ptr, len, "setsync")) != 0) | |
1044 | uc->cmd = UC_SETSYNC; | |
1045 | else if ((arg_len = is_keyword(ptr, len, "settags")) != 0) | |
1046 | uc->cmd = UC_SETTAGS; | |
1047 | else if ((arg_len = is_keyword(ptr, len, "setverbose")) != 0) | |
1048 | uc->cmd = UC_SETVERBOSE; | |
1049 | else if ((arg_len = is_keyword(ptr, len, "setwide")) != 0) | |
1050 | uc->cmd = UC_SETWIDE; | |
1051 | #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT | |
1052 | else if ((arg_len = is_keyword(ptr, len, "setdebug")) != 0) | |
1053 | uc->cmd = UC_SETDEBUG; | |
1054 | #endif | |
1055 | else if ((arg_len = is_keyword(ptr, len, "setflag")) != 0) | |
1056 | uc->cmd = UC_SETFLAG; | |
1057 | else if ((arg_len = is_keyword(ptr, len, "resetdev")) != 0) | |
1058 | uc->cmd = UC_RESETDEV; | |
1059 | else if ((arg_len = is_keyword(ptr, len, "cleardev")) != 0) | |
1060 | uc->cmd = UC_CLEARDEV; | |
1061 | else | |
1062 | arg_len = 0; | |
1063 | ||
1064 | #ifdef DEBUG_PROC_INFO | |
1065 | printk("sym_user_command: arg_len=%d, cmd=%ld\n", arg_len, uc->cmd); | |
1066 | #endif | |
1067 | ||
1068 | if (!arg_len) | |
1069 | return -EINVAL; | |
1070 | ptr += arg_len; len -= arg_len; | |
1071 | ||
1072 | switch(uc->cmd) { | |
1073 | case UC_SETSYNC: | |
1074 | case UC_SETTAGS: | |
1075 | case UC_SETWIDE: | |
1076 | case UC_SETFLAG: | |
1077 | case UC_RESETDEV: | |
1078 | case UC_CLEARDEV: | |
1079 | SKIP_SPACES(ptr, len); | |
1080 | if ((arg_len = is_keyword(ptr, len, "all")) != 0) { | |
1081 | ptr += arg_len; len -= arg_len; | |
1082 | uc->target = ~0; | |
1083 | } else { | |
1084 | GET_INT_ARG(ptr, len, target); | |
1085 | uc->target = (1<<target); | |
1086 | #ifdef DEBUG_PROC_INFO | |
1087 | printk("sym_user_command: target=%ld\n", target); | |
1088 | #endif | |
1089 | } | |
1090 | break; | |
1091 | } | |
1092 | ||
1093 | switch(uc->cmd) { | |
1094 | case UC_SETVERBOSE: | |
1095 | case UC_SETSYNC: | |
1096 | case UC_SETTAGS: | |
1097 | case UC_SETWIDE: | |
1098 | SKIP_SPACES(ptr, len); | |
1099 | GET_INT_ARG(ptr, len, uc->data); | |
1100 | #ifdef DEBUG_PROC_INFO | |
1101 | printk("sym_user_command: data=%ld\n", uc->data); | |
1102 | #endif | |
1103 | break; | |
1104 | #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT | |
1105 | case UC_SETDEBUG: | |
1106 | while (len > 0) { | |
1107 | SKIP_SPACES(ptr, len); | |
1108 | if ((arg_len = is_keyword(ptr, len, "alloc"))) | |
1109 | uc->data |= DEBUG_ALLOC; | |
1110 | else if ((arg_len = is_keyword(ptr, len, "phase"))) | |
1111 | uc->data |= DEBUG_PHASE; | |
1112 | else if ((arg_len = is_keyword(ptr, len, "queue"))) | |
1113 | uc->data |= DEBUG_QUEUE; | |
1114 | else if ((arg_len = is_keyword(ptr, len, "result"))) | |
1115 | uc->data |= DEBUG_RESULT; | |
1116 | else if ((arg_len = is_keyword(ptr, len, "scatter"))) | |
1117 | uc->data |= DEBUG_SCATTER; | |
1118 | else if ((arg_len = is_keyword(ptr, len, "script"))) | |
1119 | uc->data |= DEBUG_SCRIPT; | |
1120 | else if ((arg_len = is_keyword(ptr, len, "tiny"))) | |
1121 | uc->data |= DEBUG_TINY; | |
1122 | else if ((arg_len = is_keyword(ptr, len, "timing"))) | |
1123 | uc->data |= DEBUG_TIMING; | |
1124 | else if ((arg_len = is_keyword(ptr, len, "nego"))) | |
1125 | uc->data |= DEBUG_NEGO; | |
1126 | else if ((arg_len = is_keyword(ptr, len, "tags"))) | |
1127 | uc->data |= DEBUG_TAGS; | |
1128 | else if ((arg_len = is_keyword(ptr, len, "pointer"))) | |
1129 | uc->data |= DEBUG_POINTER; | |
1130 | else | |
1131 | return -EINVAL; | |
1132 | ptr += arg_len; len -= arg_len; | |
1133 | } | |
1134 | #ifdef DEBUG_PROC_INFO | |
1135 | printk("sym_user_command: data=%ld\n", uc->data); | |
1136 | #endif | |
1137 | break; | |
1138 | #endif /* SYM_LINUX_DEBUG_CONTROL_SUPPORT */ | |
1139 | case UC_SETFLAG: | |
1140 | while (len > 0) { | |
1141 | SKIP_SPACES(ptr, len); | |
1142 | if ((arg_len = is_keyword(ptr, len, "no_disc"))) | |
1143 | uc->data &= ~SYM_DISC_ENABLED; | |
1144 | else | |
1145 | return -EINVAL; | |
1146 | ptr += arg_len; len -= arg_len; | |
1147 | } | |
1148 | break; | |
1149 | default: | |
1150 | break; | |
1151 | } | |
1152 | ||
1153 | if (len) | |
1154 | return -EINVAL; | |
1155 | else { | |
1156 | unsigned long flags; | |
1157 | ||
5111eefa MW |
1158 | spin_lock_irqsave(shost->host_lock, flags); |
1159 | sym_exec_user_command(np, uc); | |
1160 | spin_unlock_irqrestore(shost->host_lock, flags); | |
1da177e4 LT |
1161 | } |
1162 | return length; | |
1163 | } | |
1164 | ||
1165 | #endif /* SYM_LINUX_USER_COMMAND_SUPPORT */ | |
1166 | ||
1167 | ||
1168 | #ifdef SYM_LINUX_USER_INFO_SUPPORT | |
1169 | /* | |
1170 | * Informations through the proc file system. | |
1171 | */ | |
1172 | struct info_str { | |
1173 | char *buffer; | |
1174 | int length; | |
1175 | int offset; | |
1176 | int pos; | |
1177 | }; | |
1178 | ||
1179 | static void copy_mem_info(struct info_str *info, char *data, int len) | |
1180 | { | |
1181 | if (info->pos + len > info->length) | |
1182 | len = info->length - info->pos; | |
1183 | ||
1184 | if (info->pos + len < info->offset) { | |
1185 | info->pos += len; | |
1186 | return; | |
1187 | } | |
1188 | if (info->pos < info->offset) { | |
1189 | data += (info->offset - info->pos); | |
1190 | len -= (info->offset - info->pos); | |
1191 | } | |
1192 | ||
1193 | if (len > 0) { | |
1194 | memcpy(info->buffer + info->pos, data, len); | |
1195 | info->pos += len; | |
1196 | } | |
1197 | } | |
1198 | ||
1199 | static int copy_info(struct info_str *info, char *fmt, ...) | |
1200 | { | |
1201 | va_list args; | |
1202 | char buf[81]; | |
1203 | int len; | |
1204 | ||
1205 | va_start(args, fmt); | |
1206 | len = vsprintf(buf, fmt, args); | |
1207 | va_end(args); | |
1208 | ||
1209 | copy_mem_info(info, buf, len); | |
1210 | return len; | |
1211 | } | |
1212 | ||
1213 | /* | |
1214 | * Copy formatted information into the input buffer. | |
1215 | */ | |
5111eefa | 1216 | static int sym_host_info(struct Scsi_Host *shost, char *ptr, off_t offset, int len) |
1da177e4 | 1217 | { |
5111eefa MW |
1218 | struct sym_data *sym_data = shost_priv(shost); |
1219 | struct pci_dev *pdev = sym_data->pdev; | |
1220 | struct sym_hcb *np = sym_data->ncb; | |
1da177e4 LT |
1221 | struct info_str info; |
1222 | ||
1223 | info.buffer = ptr; | |
1224 | info.length = len; | |
1225 | info.offset = offset; | |
1226 | info.pos = 0; | |
1227 | ||
1228 | copy_info(&info, "Chip " NAME53C "%s, device id 0x%x, " | |
bd678450 | 1229 | "revision id 0x%x\n", np->s.chip_name, |
5111eefa | 1230 | pdev->device, pdev->revision); |
8022fbda | 1231 | copy_info(&info, "At PCI address %s, IRQ %u\n", |
5111eefa | 1232 | pci_name(pdev), pdev->irq); |
1da177e4 LT |
1233 | copy_info(&info, "Min. period factor %d, %s SCSI BUS%s\n", |
1234 | (int) (np->minsync_dt ? np->minsync_dt : np->minsync), | |
1235 | np->maxwide ? "Wide" : "Narrow", | |
1236 | np->minsync_dt ? ", DT capable" : ""); | |
1237 | ||
1238 | copy_info(&info, "Max. started commands %d, " | |
1239 | "max. commands per LUN %d\n", | |
1240 | SYM_CONF_MAX_START, SYM_CONF_MAX_TAG); | |
1241 | ||
1242 | return info.pos > info.offset? info.pos - info.offset : 0; | |
1243 | } | |
1244 | #endif /* SYM_LINUX_USER_INFO_SUPPORT */ | |
1245 | ||
1246 | /* | |
1247 | * Entry point of the scsi proc fs of the driver. | |
1248 | * - func = 0 means read (returns adapter infos) | |
1249 | * - func = 1 means write (not yet merget from sym53c8xx) | |
1250 | */ | |
5111eefa | 1251 | static int sym53c8xx_proc_info(struct Scsi_Host *shost, char *buffer, |
1da177e4 LT |
1252 | char **start, off_t offset, int length, int func) |
1253 | { | |
1da177e4 LT |
1254 | int retv; |
1255 | ||
1256 | if (func) { | |
1257 | #ifdef SYM_LINUX_USER_COMMAND_SUPPORT | |
5111eefa | 1258 | retv = sym_user_command(shost, buffer, length); |
1da177e4 LT |
1259 | #else |
1260 | retv = -EINVAL; | |
1261 | #endif | |
1262 | } else { | |
1263 | if (start) | |
1264 | *start = buffer; | |
1265 | #ifdef SYM_LINUX_USER_INFO_SUPPORT | |
5111eefa | 1266 | retv = sym_host_info(shost, buffer, offset, length); |
1da177e4 LT |
1267 | #else |
1268 | retv = -EINVAL; | |
1269 | #endif | |
1270 | } | |
1271 | ||
1272 | return retv; | |
1273 | } | |
1274 | #endif /* SYM_LINUX_PROC_INFO_SUPPORT */ | |
1275 | ||
a71d035d | 1276 | /* |
783fa731 | 1277 | * Free resources claimed by sym_iomap_device(). Note that |
a71d035d TB |
1278 | * sym_free_resources() should be used instead of this function after calling |
1279 | * sym_attach(). | |
1280 | */ | |
1281 | static void __devinit | |
1282 | sym_iounmap_device(struct sym_device *device) | |
1283 | { | |
1284 | if (device->s.ioaddr) | |
1285 | pci_iounmap(device->pdev, device->s.ioaddr); | |
1286 | if (device->s.ramaddr) | |
1287 | pci_iounmap(device->pdev, device->s.ramaddr); | |
1288 | } | |
1289 | ||
1da177e4 LT |
1290 | /* |
1291 | * Free controller resources. | |
1292 | */ | |
b409063a TB |
1293 | static void sym_free_resources(struct sym_hcb *np, struct pci_dev *pdev, |
1294 | int do_free_irq) | |
1da177e4 LT |
1295 | { |
1296 | /* | |
1297 | * Free O/S specific resources. | |
1298 | */ | |
b409063a | 1299 | if (do_free_irq) |
7ee2413c | 1300 | free_irq(pdev->irq, np->s.host); |
1da177e4 LT |
1301 | if (np->s.ioaddr) |
1302 | pci_iounmap(pdev, np->s.ioaddr); | |
1303 | if (np->s.ramaddr) | |
1304 | pci_iounmap(pdev, np->s.ramaddr); | |
1305 | /* | |
1306 | * Free O/S independent resources. | |
1307 | */ | |
1308 | sym_hcb_free(np); | |
1309 | ||
1310 | sym_mfree_dma(np, sizeof(*np), "HCB"); | |
1311 | } | |
1312 | ||
1da177e4 LT |
1313 | /* |
1314 | * Host attach and initialisations. | |
1315 | * | |
1316 | * Allocate host data and ncb structure. | |
1317 | * Remap MMIO region. | |
1318 | * Do chip initialization. | |
1319 | * If all is OK, install interrupt handling and | |
1320 | * start the timer daemon. | |
1321 | */ | |
1322 | static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt, | |
1323 | int unit, struct sym_device *dev) | |
1324 | { | |
99c9e0a1 | 1325 | struct sym_data *sym_data; |
1da177e4 | 1326 | struct sym_hcb *np = NULL; |
a71d035d | 1327 | struct Scsi_Host *shost = NULL; |
1da177e4 LT |
1328 | struct pci_dev *pdev = dev->pdev; |
1329 | unsigned long flags; | |
1330 | struct sym_fw *fw; | |
b409063a | 1331 | int do_free_irq = 0; |
1da177e4 | 1332 | |
8022fbda | 1333 | printk(KERN_INFO "sym%d: <%s> rev 0x%x at pci %s irq %u\n", |
bd678450 | 1334 | unit, dev->chip.name, pdev->revision, pci_name(pdev), |
8022fbda | 1335 | pdev->irq); |
1da177e4 LT |
1336 | |
1337 | /* | |
1338 | * Get the firmware for this chip. | |
1339 | */ | |
1340 | fw = sym_find_firmware(&dev->chip); | |
1341 | if (!fw) | |
a71d035d | 1342 | goto attach_failed; |
1da177e4 | 1343 | |
99c9e0a1 MW |
1344 | shost = scsi_host_alloc(tpnt, sizeof(*sym_data)); |
1345 | if (!shost) | |
a71d035d | 1346 | goto attach_failed; |
99c9e0a1 | 1347 | sym_data = shost_priv(shost); |
1da177e4 LT |
1348 | |
1349 | /* | |
1350 | * Allocate immediately the host control block, | |
1351 | * since we are only expecting to succeed. :) | |
1352 | * We keep track in the HCB of all the resources that | |
1353 | * are to be released on error. | |
1354 | */ | |
1355 | np = __sym_calloc_dma(&pdev->dev, sizeof(*np), "HCB"); | |
1356 | if (!np) | |
1357 | goto attach_failed; | |
1da177e4 | 1358 | np->bus_dmat = &pdev->dev; /* Result in 1 DMA pool per HBA */ |
99c9e0a1 MW |
1359 | sym_data->ncb = np; |
1360 | sym_data->pdev = pdev; | |
1361 | np->s.host = shost; | |
1da177e4 | 1362 | |
5111eefa | 1363 | pci_set_drvdata(pdev, shost); |
1da177e4 LT |
1364 | |
1365 | /* | |
1366 | * Copy some useful infos to the HCB. | |
1367 | */ | |
1368 | np->hcb_ba = vtobus(np); | |
1369 | np->verbose = sym_driver_setup.verbose; | |
1da177e4 | 1370 | np->s.unit = unit; |
1da177e4 LT |
1371 | np->features = dev->chip.features; |
1372 | np->clock_divn = dev->chip.nr_divisor; | |
1373 | np->maxoffs = dev->chip.offset_max; | |
1374 | np->maxburst = dev->chip.burst_max; | |
1375 | np->myaddr = dev->host_id; | |
a71d035d | 1376 | np->mmio_ba = (u32)dev->mmio_base; |
783fa731 | 1377 | np->ram_ba = (u32)dev->ram_base; |
a71d035d TB |
1378 | np->s.ioaddr = dev->s.ioaddr; |
1379 | np->s.ramaddr = dev->s.ramaddr; | |
1da177e4 LT |
1380 | |
1381 | /* | |
1382 | * Edit its name. | |
1383 | */ | |
1384 | strlcpy(np->s.chip_name, dev->chip.name, sizeof(np->s.chip_name)); | |
1385 | sprintf(np->s.inst_name, "sym%d", np->s.unit); | |
1386 | ||
4d85b471 | 1387 | if ((SYM_CONF_DMA_ADDRESSING_MODE > 0) && (np->features & FE_DAC) && |
5111eefa | 1388 | !pci_set_dma_mask(pdev, DMA_DAC_MASK)) { |
4d85b471 | 1389 | set_dac(np); |
284901a9 | 1390 | } else if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) { |
4d85b471 | 1391 | printf_warning("%s: No suitable DMA available\n", sym_name(np)); |
1da177e4 | 1392 | goto attach_failed; |
4d85b471 | 1393 | } |
1da177e4 | 1394 | |
99c9e0a1 | 1395 | if (sym_hcb_attach(shost, fw, dev->nvram)) |
1da177e4 LT |
1396 | goto attach_failed; |
1397 | ||
1398 | /* | |
1399 | * Install the interrupt handler. | |
1400 | * If we synchonize the C code with SCRIPTS on interrupt, | |
1401 | * we do not want to share the INTR line at all. | |
1402 | */ | |
99c9e0a1 MW |
1403 | if (request_irq(pdev->irq, sym53c8xx_intr, IRQF_SHARED, NAME53C8XX, |
1404 | shost)) { | |
8022fbda | 1405 | printf_err("%s: request irq %u failure\n", |
1da177e4 LT |
1406 | sym_name(np), pdev->irq); |
1407 | goto attach_failed; | |
1408 | } | |
b409063a | 1409 | do_free_irq = 1; |
1da177e4 LT |
1410 | |
1411 | /* | |
1412 | * After SCSI devices have been opened, we cannot | |
1413 | * reset the bus safely, so we do it here. | |
1414 | */ | |
99c9e0a1 | 1415 | spin_lock_irqsave(shost->host_lock, flags); |
1da177e4 LT |
1416 | if (sym_reset_scsi_bus(np, 0)) |
1417 | goto reset_failed; | |
1418 | ||
1419 | /* | |
1420 | * Start the SCRIPTS. | |
1421 | */ | |
5111eefa | 1422 | sym_start_up(shost, 1); |
1da177e4 LT |
1423 | |
1424 | /* | |
1425 | * Start the timer daemon | |
1426 | */ | |
1427 | init_timer(&np->s.timer); | |
1428 | np->s.timer.data = (unsigned long) np; | |
1429 | np->s.timer.function = sym53c8xx_timer; | |
1430 | np->s.lasttime=0; | |
1431 | sym_timer (np); | |
1432 | ||
1433 | /* | |
1434 | * Fill Linux host instance structure | |
1435 | * and return success. | |
1436 | */ | |
99c9e0a1 MW |
1437 | shost->max_channel = 0; |
1438 | shost->this_id = np->myaddr; | |
1439 | shost->max_id = np->maxwide ? 16 : 8; | |
1440 | shost->max_lun = SYM_CONF_MAX_LUN; | |
1441 | shost->unique_id = pci_resource_start(pdev, 0); | |
1442 | shost->cmd_per_lun = SYM_CONF_MAX_TAG; | |
1443 | shost->can_queue = (SYM_CONF_MAX_START-2); | |
1444 | shost->sg_tablesize = SYM_CONF_MAX_SG; | |
1445 | shost->max_cmd_len = 16; | |
1da177e4 | 1446 | BUG_ON(sym2_transport_template == NULL); |
99c9e0a1 | 1447 | shost->transportt = sym2_transport_template; |
1da177e4 | 1448 | |
34996acc | 1449 | /* 53c896 rev 1 errata: DMA may not cross 16MB boundary */ |
bd678450 | 1450 | if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && pdev->revision < 2) |
99c9e0a1 | 1451 | shost->dma_boundary = 0xFFFFFF; |
34996acc | 1452 | |
99c9e0a1 | 1453 | spin_unlock_irqrestore(shost->host_lock, flags); |
1da177e4 | 1454 | |
99c9e0a1 | 1455 | return shost; |
1da177e4 LT |
1456 | |
1457 | reset_failed: | |
1458 | printf_err("%s: FATAL ERROR: CHECK SCSI BUS - CABLES, " | |
1459 | "TERMINATION, DEVICE POWER etc.!\n", sym_name(np)); | |
99c9e0a1 | 1460 | spin_unlock_irqrestore(shost->host_lock, flags); |
1da177e4 | 1461 | attach_failed: |
07b9d81e | 1462 | printf_info("sym%d: giving up ...\n", unit); |
1da177e4 | 1463 | if (np) |
b409063a | 1464 | sym_free_resources(np, pdev, do_free_irq); |
a71d035d TB |
1465 | else |
1466 | sym_iounmap_device(dev); | |
1467 | if (shost) | |
1468 | scsi_host_put(shost); | |
1da177e4 LT |
1469 | |
1470 | return NULL; | |
1471 | } | |
1472 | ||
1473 | ||
1474 | /* | |
1475 | * Detect and try to read SYMBIOS and TEKRAM NVRAM. | |
1476 | */ | |
1477 | #if SYM_CONF_NVRAM_SUPPORT | |
1478 | static void __devinit sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) | |
1479 | { | |
1480 | devp->nvram = nvp; | |
1da177e4 LT |
1481 | nvp->type = 0; |
1482 | ||
1483 | sym_read_nvram(devp, nvp); | |
1484 | } | |
1485 | #else | |
1486 | static inline void sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) | |
1487 | { | |
1488 | } | |
1489 | #endif /* SYM_CONF_NVRAM_SUPPORT */ | |
1490 | ||
1491 | static int __devinit sym_check_supported(struct sym_device *device) | |
1492 | { | |
1493 | struct sym_chip *chip; | |
1494 | struct pci_dev *pdev = device->pdev; | |
1da177e4 LT |
1495 | unsigned long io_port = pci_resource_start(pdev, 0); |
1496 | int i; | |
1497 | ||
1498 | /* | |
1499 | * If user excluded this chip, do not initialize it. | |
1500 | * I hate this code so much. Must kill it. | |
1501 | */ | |
1502 | if (io_port) { | |
1503 | for (i = 0 ; i < 8 ; i++) { | |
1504 | if (sym_driver_setup.excludes[i] == io_port) | |
1505 | return -ENODEV; | |
1506 | } | |
1507 | } | |
1508 | ||
1509 | /* | |
1510 | * Check if the chip is supported. Then copy the chip description | |
1511 | * to our device structure so we can make it match the actual device | |
1512 | * and options. | |
1513 | */ | |
bd678450 | 1514 | chip = sym_lookup_chip_table(pdev->device, pdev->revision); |
1da177e4 LT |
1515 | if (!chip) { |
1516 | dev_info(&pdev->dev, "device not supported\n"); | |
1517 | return -ENODEV; | |
1518 | } | |
1519 | memcpy(&device->chip, chip, sizeof(device->chip)); | |
1da177e4 LT |
1520 | |
1521 | return 0; | |
1522 | } | |
1523 | ||
1524 | /* | |
1525 | * Ignore Symbios chips controlled by various RAID controllers. | |
1526 | * These controllers set value 0x52414944 at RAM end - 16. | |
1527 | */ | |
1528 | static int __devinit sym_check_raid(struct sym_device *device) | |
1529 | { | |
1530 | unsigned int ram_size, ram_val; | |
1531 | ||
1532 | if (!device->s.ramaddr) | |
1533 | return 0; | |
1534 | ||
1535 | if (device->chip.features & FE_RAM8K) | |
1536 | ram_size = 8192; | |
1537 | else | |
1538 | ram_size = 4096; | |
1539 | ||
1540 | ram_val = readl(device->s.ramaddr + ram_size - 16); | |
1541 | if (ram_val != 0x52414944) | |
1542 | return 0; | |
1543 | ||
1544 | dev_info(&device->pdev->dev, | |
1545 | "not initializing, driven by RAID controller.\n"); | |
1546 | return -ENODEV; | |
1547 | } | |
1548 | ||
1549 | static int __devinit sym_set_workarounds(struct sym_device *device) | |
1550 | { | |
1551 | struct sym_chip *chip = &device->chip; | |
1552 | struct pci_dev *pdev = device->pdev; | |
1553 | u_short status_reg; | |
1554 | ||
1555 | /* | |
1556 | * (ITEM 12 of a DEL about the 896 I haven't yet). | |
1557 | * We must ensure the chip will use WRITE AND INVALIDATE. | |
1558 | * The revision number limit is for now arbitrary. | |
1559 | */ | |
bd678450 | 1560 | if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && pdev->revision < 0x4) { |
1da177e4 LT |
1561 | chip->features |= (FE_WRIE | FE_CLSE); |
1562 | } | |
1563 | ||
1564 | /* If the chip can do Memory Write Invalidate, enable it */ | |
1565 | if (chip->features & FE_WRIE) { | |
1566 | if (pci_set_mwi(pdev)) | |
1567 | return -ENODEV; | |
1568 | } | |
1569 | ||
1570 | /* | |
1571 | * Work around for errant bit in 895A. The 66Mhz | |
1572 | * capable bit is set erroneously. Clear this bit. | |
1573 | * (Item 1 DEL 533) | |
1574 | * | |
1575 | * Make sure Config space and Features agree. | |
1576 | * | |
1577 | * Recall: writes are not normal to status register - | |
1578 | * write a 1 to clear and a 0 to leave unchanged. | |
1579 | * Can only reset bits. | |
1580 | */ | |
1581 | pci_read_config_word(pdev, PCI_STATUS, &status_reg); | |
1582 | if (chip->features & FE_66MHZ) { | |
1583 | if (!(status_reg & PCI_STATUS_66MHZ)) | |
1584 | chip->features &= ~FE_66MHZ; | |
1585 | } else { | |
1586 | if (status_reg & PCI_STATUS_66MHZ) { | |
1587 | status_reg = PCI_STATUS_66MHZ; | |
1588 | pci_write_config_word(pdev, PCI_STATUS, status_reg); | |
1589 | pci_read_config_word(pdev, PCI_STATUS, &status_reg); | |
1590 | } | |
1591 | } | |
1592 | ||
1593 | return 0; | |
1594 | } | |
1595 | ||
1596 | /* | |
783fa731 | 1597 | * Map HBA registers and on-chip SRAM (if present). |
1da177e4 | 1598 | */ |
783fa731 TB |
1599 | static int __devinit |
1600 | sym_iomap_device(struct sym_device *device) | |
1da177e4 | 1601 | { |
783fa731 | 1602 | struct pci_dev *pdev = device->pdev; |
b6d105d7 | 1603 | struct pci_bus_region bus_addr; |
783fa731 | 1604 | int i = 2; |
1da177e4 | 1605 | |
b6d105d7 MW |
1606 | pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[1]); |
1607 | device->mmio_base = bus_addr.start; | |
1608 | ||
783fa731 TB |
1609 | if (device->chip.features & FE_RAM) { |
1610 | /* | |
1611 | * If the BAR is 64-bit, resource 2 will be occupied by the | |
1612 | * upper 32 bits | |
1613 | */ | |
1614 | if (!pdev->resource[i].flags) | |
1615 | i++; | |
1616 | pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[i]); | |
1617 | device->ram_base = bus_addr.start; | |
1618 | } | |
1da177e4 | 1619 | |
1f61d824 | 1620 | #ifdef CONFIG_SCSI_SYM53C8XX_MMIO |
1da177e4 LT |
1621 | if (device->mmio_base) |
1622 | device->s.ioaddr = pci_iomap(pdev, 1, | |
1623 | pci_resource_len(pdev, 1)); | |
1624 | #endif | |
1625 | if (!device->s.ioaddr) | |
1626 | device->s.ioaddr = pci_iomap(pdev, 0, | |
1627 | pci_resource_len(pdev, 0)); | |
783fa731 TB |
1628 | if (!device->s.ioaddr) { |
1629 | dev_err(&pdev->dev, "could not map registers; giving up.\n"); | |
1630 | return -EIO; | |
1631 | } | |
1632 | if (device->ram_base) { | |
1da177e4 LT |
1633 | device->s.ramaddr = pci_iomap(pdev, i, |
1634 | pci_resource_len(pdev, i)); | |
783fa731 TB |
1635 | if (!device->s.ramaddr) { |
1636 | dev_warn(&pdev->dev, | |
1637 | "could not map SRAM; continuing anyway.\n"); | |
1638 | device->ram_base = 0; | |
1639 | } | |
1640 | } | |
1641 | ||
1642 | return 0; | |
1da177e4 LT |
1643 | } |
1644 | ||
1645 | /* | |
1646 | * The NCR PQS and PDS cards are constructed as a DEC bridge | |
1647 | * behind which sits a proprietary NCR memory controller and | |
1648 | * either four or two 53c875s as separate devices. We can tell | |
1649 | * if an 875 is part of a PQS/PDS or not since if it is, it will | |
1650 | * be on the same bus as the memory controller. In its usual | |
1651 | * mode of operation, the 875s are slaved to the memory | |
1652 | * controller for all transfers. To operate with the Linux | |
1653 | * driver, the memory controller is disabled and the 875s | |
1654 | * freed to function independently. The only wrinkle is that | |
1655 | * the preset SCSI ID (which may be zero) must be read in from | |
1656 | * a special configuration space register of the 875. | |
1657 | */ | |
1658 | static void sym_config_pqs(struct pci_dev *pdev, struct sym_device *sym_dev) | |
1659 | { | |
1660 | int slot; | |
1661 | u8 tmp; | |
1662 | ||
1663 | for (slot = 0; slot < 256; slot++) { | |
1664 | struct pci_dev *memc = pci_get_slot(pdev->bus, slot); | |
1665 | ||
1666 | if (!memc || memc->vendor != 0x101a || memc->device == 0x0009) { | |
1667 | pci_dev_put(memc); | |
1668 | continue; | |
1669 | } | |
1670 | ||
1671 | /* bit 1: allow individual 875 configuration */ | |
1672 | pci_read_config_byte(memc, 0x44, &tmp); | |
1673 | if ((tmp & 0x2) == 0) { | |
1674 | tmp |= 0x2; | |
1675 | pci_write_config_byte(memc, 0x44, tmp); | |
1676 | } | |
1677 | ||
1678 | /* bit 2: drive individual 875 interrupts to the bus */ | |
1679 | pci_read_config_byte(memc, 0x45, &tmp); | |
1680 | if ((tmp & 0x4) == 0) { | |
1681 | tmp |= 0x4; | |
1682 | pci_write_config_byte(memc, 0x45, tmp); | |
1683 | } | |
1684 | ||
1685 | pci_dev_put(memc); | |
1686 | break; | |
1687 | } | |
1688 | ||
1689 | pci_read_config_byte(pdev, 0x84, &tmp); | |
1690 | sym_dev->host_id = tmp; | |
1691 | } | |
1692 | ||
1693 | /* | |
1694 | * Called before unloading the module. | |
1695 | * Detach the host. | |
1696 | * We have to free resources and halt the NCR chip. | |
1697 | */ | |
5111eefa | 1698 | static int sym_detach(struct Scsi_Host *shost, struct pci_dev *pdev) |
1da177e4 | 1699 | { |
5111eefa | 1700 | struct sym_hcb *np = sym_get_hcb(shost); |
1da177e4 LT |
1701 | printk("%s: detaching ...\n", sym_name(np)); |
1702 | ||
1703 | del_timer_sync(&np->s.timer); | |
1704 | ||
1705 | /* | |
1706 | * Reset NCR chip. | |
1707 | * We should use sym_soft_reset(), but we don't want to do | |
1708 | * so, since we may not be safe if interrupts occur. | |
1709 | */ | |
1710 | printk("%s: resetting chip\n", sym_name(np)); | |
1711 | OUTB(np, nc_istat, SRST); | |
53222b90 | 1712 | INB(np, nc_mbox1); |
1da177e4 LT |
1713 | udelay(10); |
1714 | OUTB(np, nc_istat, 0); | |
1715 | ||
b409063a | 1716 | sym_free_resources(np, pdev, 1); |
d3ce65d1 | 1717 | scsi_host_put(shost); |
1da177e4 LT |
1718 | |
1719 | return 1; | |
1720 | } | |
1721 | ||
1722 | /* | |
1723 | * Driver host template. | |
1724 | */ | |
1725 | static struct scsi_host_template sym2_template = { | |
1726 | .module = THIS_MODULE, | |
1727 | .name = "sym53c8xx", | |
1728 | .info = sym53c8xx_info, | |
1729 | .queuecommand = sym53c8xx_queue_command, | |
1730 | .slave_alloc = sym53c8xx_slave_alloc, | |
1731 | .slave_configure = sym53c8xx_slave_configure, | |
84e203a2 | 1732 | .slave_destroy = sym53c8xx_slave_destroy, |
1da177e4 LT |
1733 | .eh_abort_handler = sym53c8xx_eh_abort_handler, |
1734 | .eh_device_reset_handler = sym53c8xx_eh_device_reset_handler, | |
1735 | .eh_bus_reset_handler = sym53c8xx_eh_bus_reset_handler, | |
1736 | .eh_host_reset_handler = sym53c8xx_eh_host_reset_handler, | |
1737 | .this_id = 7, | |
14ac8bf5 MW |
1738 | .use_clustering = ENABLE_CLUSTERING, |
1739 | .max_sectors = 0xFFFF, | |
1da177e4 LT |
1740 | #ifdef SYM_LINUX_PROC_INFO_SUPPORT |
1741 | .proc_info = sym53c8xx_proc_info, | |
1742 | .proc_name = NAME53C8XX, | |
1743 | #endif | |
1744 | }; | |
1745 | ||
1746 | static int attach_count; | |
1747 | ||
1748 | static int __devinit sym2_probe(struct pci_dev *pdev, | |
1749 | const struct pci_device_id *ent) | |
1750 | { | |
1751 | struct sym_device sym_dev; | |
1752 | struct sym_nvram nvram; | |
99c9e0a1 | 1753 | struct Scsi_Host *shost; |
a71d035d TB |
1754 | int do_iounmap = 0; |
1755 | int do_disable_device = 1; | |
1da177e4 LT |
1756 | |
1757 | memset(&sym_dev, 0, sizeof(sym_dev)); | |
1758 | memset(&nvram, 0, sizeof(nvram)); | |
783fa731 TB |
1759 | sym_dev.pdev = pdev; |
1760 | sym_dev.host_id = SYM_SETUP_HOST_ID; | |
1da177e4 LT |
1761 | |
1762 | if (pci_enable_device(pdev)) | |
1763 | goto leave; | |
1764 | ||
1765 | pci_set_master(pdev); | |
1766 | ||
1767 | if (pci_request_regions(pdev, NAME53C8XX)) | |
1768 | goto disable; | |
1769 | ||
1da177e4 LT |
1770 | if (sym_check_supported(&sym_dev)) |
1771 | goto free; | |
1772 | ||
783fa731 TB |
1773 | if (sym_iomap_device(&sym_dev)) |
1774 | goto free; | |
1775 | do_iounmap = 1; | |
1776 | ||
a71d035d TB |
1777 | if (sym_check_raid(&sym_dev)) { |
1778 | do_disable_device = 0; /* Don't disable the device */ | |
1779 | goto free; | |
1780 | } | |
1da177e4 LT |
1781 | |
1782 | if (sym_set_workarounds(&sym_dev)) | |
1783 | goto free; | |
1784 | ||
1785 | sym_config_pqs(pdev, &sym_dev); | |
1786 | ||
1787 | sym_get_nvram(&sym_dev, &nvram); | |
1788 | ||
a71d035d | 1789 | do_iounmap = 0; /* Don't sym_iounmap_device() after sym_attach(). */ |
99c9e0a1 MW |
1790 | shost = sym_attach(&sym2_template, attach_count, &sym_dev); |
1791 | if (!shost) | |
1da177e4 LT |
1792 | goto free; |
1793 | ||
99c9e0a1 | 1794 | if (scsi_add_host(shost, &pdev->dev)) |
1da177e4 | 1795 | goto detach; |
99c9e0a1 | 1796 | scsi_scan_host(shost); |
1da177e4 LT |
1797 | |
1798 | attach_count++; | |
1799 | ||
1800 | return 0; | |
1801 | ||
1802 | detach: | |
1803 | sym_detach(pci_get_drvdata(pdev), pdev); | |
1804 | free: | |
a71d035d TB |
1805 | if (do_iounmap) |
1806 | sym_iounmap_device(&sym_dev); | |
1da177e4 LT |
1807 | pci_release_regions(pdev); |
1808 | disable: | |
a71d035d TB |
1809 | if (do_disable_device) |
1810 | pci_disable_device(pdev); | |
1da177e4 LT |
1811 | leave: |
1812 | return -ENODEV; | |
1813 | } | |
1814 | ||
864473bb | 1815 | static void sym2_remove(struct pci_dev *pdev) |
1da177e4 | 1816 | { |
5111eefa | 1817 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
1da177e4 | 1818 | |
5111eefa | 1819 | scsi_remove_host(shost); |
5111eefa | 1820 | sym_detach(shost, pdev); |
1da177e4 LT |
1821 | pci_release_regions(pdev); |
1822 | pci_disable_device(pdev); | |
1823 | ||
1824 | attach_count--; | |
1825 | } | |
1826 | ||
d68cd759 LV |
1827 | /** |
1828 | * sym2_io_error_detected() - called when PCI error is detected | |
1829 | * @pdev: pointer to PCI device | |
1830 | * @state: current state of the PCI slot | |
1831 | */ | |
1832 | static pci_ers_result_t sym2_io_error_detected(struct pci_dev *pdev, | |
1833 | enum pci_channel_state state) | |
1834 | { | |
1835 | /* If slot is permanently frozen, turn everything off */ | |
1836 | if (state == pci_channel_io_perm_failure) { | |
1837 | sym2_remove(pdev); | |
1838 | return PCI_ERS_RESULT_DISCONNECT; | |
1839 | } | |
1840 | ||
1841 | disable_irq(pdev->irq); | |
1842 | pci_disable_device(pdev); | |
1843 | ||
1844 | /* Request that MMIO be enabled, so register dump can be taken. */ | |
1845 | return PCI_ERS_RESULT_CAN_RECOVER; | |
1846 | } | |
1847 | ||
1848 | /** | |
1849 | * sym2_io_slot_dump - Enable MMIO and dump debug registers | |
1850 | * @pdev: pointer to PCI device | |
1851 | */ | |
1852 | static pci_ers_result_t sym2_io_slot_dump(struct pci_dev *pdev) | |
1853 | { | |
5111eefa | 1854 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
d68cd759 | 1855 | |
5111eefa | 1856 | sym_dump_registers(shost); |
d68cd759 LV |
1857 | |
1858 | /* Request a slot reset. */ | |
1859 | return PCI_ERS_RESULT_NEED_RESET; | |
1860 | } | |
1861 | ||
1862 | /** | |
1863 | * sym2_reset_workarounds - hardware-specific work-arounds | |
1864 | * | |
1865 | * This routine is similar to sym_set_workarounds(), except | |
1866 | * that, at this point, we already know that the device was | |
af901ca1 | 1867 | * successfully intialized at least once before, and so most |
d68cd759 LV |
1868 | * of the steps taken there are un-needed here. |
1869 | */ | |
1870 | static void sym2_reset_workarounds(struct pci_dev *pdev) | |
1871 | { | |
d68cd759 LV |
1872 | u_short status_reg; |
1873 | struct sym_chip *chip; | |
1874 | ||
bd678450 | 1875 | chip = sym_lookup_chip_table(pdev->device, pdev->revision); |
d68cd759 LV |
1876 | |
1877 | /* Work around for errant bit in 895A, in a fashion | |
1878 | * similar to what is done in sym_set_workarounds(). | |
1879 | */ | |
1880 | pci_read_config_word(pdev, PCI_STATUS, &status_reg); | |
1881 | if (!(chip->features & FE_66MHZ) && (status_reg & PCI_STATUS_66MHZ)) { | |
1882 | status_reg = PCI_STATUS_66MHZ; | |
1883 | pci_write_config_word(pdev, PCI_STATUS, status_reg); | |
1884 | pci_read_config_word(pdev, PCI_STATUS, &status_reg); | |
1885 | } | |
1886 | } | |
1887 | ||
1888 | /** | |
1889 | * sym2_io_slot_reset() - called when the pci bus has been reset. | |
1890 | * @pdev: pointer to PCI device | |
1891 | * | |
1892 | * Restart the card from scratch. | |
1893 | */ | |
1894 | static pci_ers_result_t sym2_io_slot_reset(struct pci_dev *pdev) | |
1895 | { | |
5111eefa MW |
1896 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
1897 | struct sym_hcb *np = sym_get_hcb(shost); | |
d68cd759 LV |
1898 | |
1899 | printk(KERN_INFO "%s: recovering from a PCI slot reset\n", | |
1900 | sym_name(np)); | |
1901 | ||
1902 | if (pci_enable_device(pdev)) { | |
1903 | printk(KERN_ERR "%s: Unable to enable after PCI reset\n", | |
1904 | sym_name(np)); | |
1905 | return PCI_ERS_RESULT_DISCONNECT; | |
1906 | } | |
1907 | ||
1908 | pci_set_master(pdev); | |
1909 | enable_irq(pdev->irq); | |
1910 | ||
1911 | /* If the chip can do Memory Write Invalidate, enable it */ | |
1912 | if (np->features & FE_WRIE) { | |
1913 | if (pci_set_mwi(pdev)) | |
1914 | return PCI_ERS_RESULT_DISCONNECT; | |
1915 | } | |
1916 | ||
1917 | /* Perform work-arounds, analogous to sym_set_workarounds() */ | |
1918 | sym2_reset_workarounds(pdev); | |
1919 | ||
1920 | /* Perform host reset only on one instance of the card */ | |
1921 | if (PCI_FUNC(pdev->devfn) == 0) { | |
1922 | if (sym_reset_scsi_bus(np, 0)) { | |
1923 | printk(KERN_ERR "%s: Unable to reset scsi host\n", | |
1924 | sym_name(np)); | |
1925 | return PCI_ERS_RESULT_DISCONNECT; | |
1926 | } | |
5111eefa | 1927 | sym_start_up(shost, 1); |
d68cd759 LV |
1928 | } |
1929 | ||
1930 | return PCI_ERS_RESULT_RECOVERED; | |
1931 | } | |
1932 | ||
1933 | /** | |
1934 | * sym2_io_resume() - resume normal ops after PCI reset | |
1935 | * @pdev: pointer to PCI device | |
1936 | * | |
1937 | * Called when the error recovery driver tells us that its | |
1938 | * OK to resume normal operation. Use completion to allow | |
1939 | * halted scsi ops to resume. | |
1940 | */ | |
1941 | static void sym2_io_resume(struct pci_dev *pdev) | |
1942 | { | |
5111eefa | 1943 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
99c9e0a1 | 1944 | struct sym_data *sym_data = shost_priv(shost); |
d68cd759 LV |
1945 | |
1946 | spin_lock_irq(shost->host_lock); | |
99c9e0a1 MW |
1947 | if (sym_data->io_reset) |
1948 | complete_all(sym_data->io_reset); | |
d68cd759 LV |
1949 | spin_unlock_irq(shost->host_lock); |
1950 | } | |
1951 | ||
1da177e4 LT |
1952 | static void sym2_get_signalling(struct Scsi_Host *shost) |
1953 | { | |
1954 | struct sym_hcb *np = sym_get_hcb(shost); | |
1955 | enum spi_signal_type type; | |
1956 | ||
1957 | switch (np->scsi_mode) { | |
1958 | case SMODE_SE: | |
1959 | type = SPI_SIGNAL_SE; | |
1960 | break; | |
1961 | case SMODE_LVD: | |
1962 | type = SPI_SIGNAL_LVD; | |
1963 | break; | |
1964 | case SMODE_HVD: | |
1965 | type = SPI_SIGNAL_HVD; | |
1966 | break; | |
1967 | default: | |
1968 | type = SPI_SIGNAL_UNKNOWN; | |
1969 | break; | |
1970 | } | |
1971 | spi_signalling(shost) = type; | |
1972 | } | |
1973 | ||
1974 | static void sym2_set_offset(struct scsi_target *starget, int offset) | |
1975 | { | |
1976 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1977 | struct sym_hcb *np = sym_get_hcb(shost); | |
1978 | struct sym_tcb *tp = &np->target[starget->id]; | |
1979 | ||
1980 | tp->tgoal.offset = offset; | |
1981 | tp->tgoal.check_nego = 1; | |
1982 | } | |
1983 | ||
1984 | static void sym2_set_period(struct scsi_target *starget, int period) | |
1985 | { | |
1986 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1987 | struct sym_hcb *np = sym_get_hcb(shost); | |
1988 | struct sym_tcb *tp = &np->target[starget->id]; | |
1989 | ||
e4862fed JB |
1990 | /* have to have DT for these transfers, but DT will also |
1991 | * set width, so check that this is allowed */ | |
1992 | if (period <= np->minsync && spi_width(starget)) | |
1da177e4 LT |
1993 | tp->tgoal.dt = 1; |
1994 | ||
1995 | tp->tgoal.period = period; | |
1996 | tp->tgoal.check_nego = 1; | |
1997 | } | |
1998 | ||
1999 | static void sym2_set_width(struct scsi_target *starget, int width) | |
2000 | { | |
2001 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
2002 | struct sym_hcb *np = sym_get_hcb(shost); | |
2003 | struct sym_tcb *tp = &np->target[starget->id]; | |
2004 | ||
2005 | /* It is illegal to have DT set on narrow transfers. If DT is | |
2006 | * clear, we must also clear IU and QAS. */ | |
2007 | if (width == 0) | |
2008 | tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0; | |
2009 | ||
2010 | tp->tgoal.width = width; | |
2011 | tp->tgoal.check_nego = 1; | |
2012 | } | |
2013 | ||
2014 | static void sym2_set_dt(struct scsi_target *starget, int dt) | |
2015 | { | |
2016 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
2017 | struct sym_hcb *np = sym_get_hcb(shost); | |
2018 | struct sym_tcb *tp = &np->target[starget->id]; | |
2019 | ||
2020 | /* We must clear QAS and IU if DT is clear */ | |
2021 | if (dt) | |
2022 | tp->tgoal.dt = 1; | |
2023 | else | |
2024 | tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0; | |
2025 | tp->tgoal.check_nego = 1; | |
2026 | } | |
2027 | ||
8b2f8138 | 2028 | #if 0 |
1da177e4 LT |
2029 | static void sym2_set_iu(struct scsi_target *starget, int iu) |
2030 | { | |
2031 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
2032 | struct sym_hcb *np = sym_get_hcb(shost); | |
2033 | struct sym_tcb *tp = &np->target[starget->id]; | |
2034 | ||
2035 | if (iu) | |
2036 | tp->tgoal.iu = tp->tgoal.dt = 1; | |
2037 | else | |
2038 | tp->tgoal.iu = 0; | |
2039 | tp->tgoal.check_nego = 1; | |
2040 | } | |
2041 | ||
2042 | static void sym2_set_qas(struct scsi_target *starget, int qas) | |
2043 | { | |
2044 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
2045 | struct sym_hcb *np = sym_get_hcb(shost); | |
2046 | struct sym_tcb *tp = &np->target[starget->id]; | |
2047 | ||
2048 | if (qas) | |
2049 | tp->tgoal.dt = tp->tgoal.qas = 1; | |
2050 | else | |
2051 | tp->tgoal.qas = 0; | |
2052 | tp->tgoal.check_nego = 1; | |
2053 | } | |
8b2f8138 | 2054 | #endif |
1da177e4 LT |
2055 | |
2056 | static struct spi_function_template sym2_transport_functions = { | |
2057 | .set_offset = sym2_set_offset, | |
2058 | .show_offset = 1, | |
2059 | .set_period = sym2_set_period, | |
2060 | .show_period = 1, | |
2061 | .set_width = sym2_set_width, | |
2062 | .show_width = 1, | |
2063 | .set_dt = sym2_set_dt, | |
2064 | .show_dt = 1, | |
8b2f8138 | 2065 | #if 0 |
1da177e4 LT |
2066 | .set_iu = sym2_set_iu, |
2067 | .show_iu = 1, | |
2068 | .set_qas = sym2_set_qas, | |
2069 | .show_qas = 1, | |
8b2f8138 | 2070 | #endif |
1da177e4 LT |
2071 | .get_signalling = sym2_get_signalling, |
2072 | }; | |
2073 | ||
2074 | static struct pci_device_id sym2_id_table[] __devinitdata = { | |
2075 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C810, | |
2076 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2077 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C820, | |
2078 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */ | |
2079 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C825, | |
2080 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2081 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C815, | |
2082 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2083 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C810AP, | |
2084 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */ | |
2085 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C860, | |
2086 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2087 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1510, | |
b2b3c121 | 2088 | PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8, 0xffff00, 0UL }, |
1da177e4 LT |
2089 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C896, |
2090 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2091 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C895, | |
2092 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2093 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C885, | |
2094 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2095 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875, | |
2096 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2097 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C1510, | |
147e505e | 2098 | PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8, 0xffff00, 0UL }, /* new */ |
1da177e4 LT |
2099 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C895A, |
2100 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2101 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C875A, | |
2102 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2103 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_33, | |
2104 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2105 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_66, | |
2106 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2107 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875J, | |
2108 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2109 | { 0, } | |
2110 | }; | |
2111 | ||
2112 | MODULE_DEVICE_TABLE(pci, sym2_id_table); | |
2113 | ||
d68cd759 LV |
2114 | static struct pci_error_handlers sym2_err_handler = { |
2115 | .error_detected = sym2_io_error_detected, | |
2116 | .mmio_enabled = sym2_io_slot_dump, | |
2117 | .slot_reset = sym2_io_slot_reset, | |
2118 | .resume = sym2_io_resume, | |
2119 | }; | |
2120 | ||
1da177e4 LT |
2121 | static struct pci_driver sym2_driver = { |
2122 | .name = NAME53C8XX, | |
2123 | .id_table = sym2_id_table, | |
2124 | .probe = sym2_probe, | |
864473bb | 2125 | .remove = sym2_remove, |
d68cd759 | 2126 | .err_handler = &sym2_err_handler, |
1da177e4 LT |
2127 | }; |
2128 | ||
2129 | static int __init sym2_init(void) | |
2130 | { | |
2131 | int error; | |
2132 | ||
2133 | sym2_setup_params(); | |
2134 | sym2_transport_template = spi_attach_transport(&sym2_transport_functions); | |
2135 | if (!sym2_transport_template) | |
2136 | return -ENODEV; | |
2137 | ||
2138 | error = pci_register_driver(&sym2_driver); | |
2139 | if (error) | |
2140 | spi_release_transport(sym2_transport_template); | |
2141 | return error; | |
2142 | } | |
2143 | ||
2144 | static void __exit sym2_exit(void) | |
2145 | { | |
2146 | pci_unregister_driver(&sym2_driver); | |
2147 | spi_release_transport(sym2_transport_template); | |
2148 | } | |
2149 | ||
2150 | module_init(sym2_init); | |
2151 | module_exit(sym2_exit); |