]>
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> | |
42 | #include <linux/interrupt.h> | |
43 | #include <linux/module.h> | |
44 | #include <linux/moduleparam.h> | |
45 | #include <linux/spinlock.h> | |
46 | #include <scsi/scsi.h> | |
47 | #include <scsi/scsi_tcq.h> | |
48 | #include <scsi/scsi_device.h> | |
49 | #include <scsi/scsi_transport.h> | |
50 | ||
51 | #include "sym_glue.h" | |
52 | #include "sym_nvram.h" | |
53 | ||
54 | #define NAME53C "sym53c" | |
55 | #define NAME53C8XX "sym53c8xx" | |
56 | ||
1da177e4 LT |
57 | #define IRQ_FMT "%d" |
58 | #define IRQ_PRM(x) (x) | |
1da177e4 LT |
59 | |
60 | struct sym_driver_setup sym_driver_setup = SYM_LINUX_DRIVER_SETUP; | |
61 | unsigned int sym_debug_flags = 0; | |
62 | ||
63 | static char *excl_string; | |
64 | static char *safe_string; | |
65 | module_param_named(cmd_per_lun, sym_driver_setup.max_tag, ushort, 0); | |
66 | module_param_string(tag_ctrl, sym_driver_setup.tag_ctrl, 100, 0); | |
67 | module_param_named(burst, sym_driver_setup.burst_order, byte, 0); | |
68 | module_param_named(led, sym_driver_setup.scsi_led, byte, 0); | |
69 | module_param_named(diff, sym_driver_setup.scsi_diff, byte, 0); | |
70 | module_param_named(irqm, sym_driver_setup.irq_mode, byte, 0); | |
71 | module_param_named(buschk, sym_driver_setup.scsi_bus_check, byte, 0); | |
72 | module_param_named(hostid, sym_driver_setup.host_id, byte, 0); | |
73 | module_param_named(verb, sym_driver_setup.verbose, byte, 0); | |
74 | module_param_named(debug, sym_debug_flags, uint, 0); | |
75 | module_param_named(settle, sym_driver_setup.settle_delay, byte, 0); | |
76 | module_param_named(nvram, sym_driver_setup.use_nvram, byte, 0); | |
77 | module_param_named(excl, excl_string, charp, 0); | |
78 | module_param_named(safe, safe_string, charp, 0); | |
79 | ||
80 | MODULE_PARM_DESC(cmd_per_lun, "The maximum number of tags to use by default"); | |
81 | MODULE_PARM_DESC(tag_ctrl, "More detailed control over tags per LUN"); | |
82 | MODULE_PARM_DESC(burst, "Maximum burst. 0 to disable, 255 to read from registers"); | |
83 | MODULE_PARM_DESC(led, "Set to 1 to enable LED support"); | |
84 | MODULE_PARM_DESC(diff, "0 for no differential mode, 1 for BIOS, 2 for always, 3 for not GPIO3"); | |
85 | MODULE_PARM_DESC(irqm, "0 for open drain, 1 to leave alone, 2 for totem pole"); | |
86 | MODULE_PARM_DESC(buschk, "0 to not check, 1 for detach on error, 2 for warn on error"); | |
87 | MODULE_PARM_DESC(hostid, "The SCSI ID to use for the host adapters"); | |
88 | MODULE_PARM_DESC(verb, "0 for minimal verbosity, 1 for normal, 2 for excessive"); | |
89 | MODULE_PARM_DESC(debug, "Set bits to enable debugging"); | |
90 | MODULE_PARM_DESC(settle, "Settle delay in seconds. Default 3"); | |
91 | MODULE_PARM_DESC(nvram, "Option currently not used"); | |
92 | MODULE_PARM_DESC(excl, "List ioport addresses here to prevent controllers from being attached"); | |
93 | MODULE_PARM_DESC(safe, "Set other settings to a \"safe mode\""); | |
94 | ||
95 | MODULE_LICENSE("GPL"); | |
96 | MODULE_VERSION(SYM_VERSION); | |
97 | MODULE_AUTHOR("Matthew Wilcox <matthew@wil.cx>"); | |
98 | MODULE_DESCRIPTION("NCR, Symbios and LSI 8xx and 1010 PCI SCSI adapters"); | |
99 | ||
100 | static void sym2_setup_params(void) | |
101 | { | |
102 | char *p = excl_string; | |
103 | int xi = 0; | |
104 | ||
105 | while (p && (xi < 8)) { | |
106 | char *next_p; | |
107 | int val = (int) simple_strtoul(p, &next_p, 0); | |
108 | sym_driver_setup.excludes[xi++] = val; | |
109 | p = next_p; | |
110 | } | |
111 | ||
112 | if (safe_string) { | |
113 | if (*safe_string == 'y') { | |
114 | sym_driver_setup.max_tag = 0; | |
115 | sym_driver_setup.burst_order = 0; | |
116 | sym_driver_setup.scsi_led = 0; | |
117 | sym_driver_setup.scsi_diff = 1; | |
118 | sym_driver_setup.irq_mode = 0; | |
119 | sym_driver_setup.scsi_bus_check = 2; | |
120 | sym_driver_setup.host_id = 7; | |
121 | sym_driver_setup.verbose = 2; | |
122 | sym_driver_setup.settle_delay = 10; | |
123 | sym_driver_setup.use_nvram = 1; | |
124 | } else if (*safe_string != 'n') { | |
125 | printk(KERN_WARNING NAME53C8XX "Ignoring parameter %s" | |
126 | " passed to safe option", safe_string); | |
127 | } | |
128 | } | |
129 | } | |
130 | ||
1da177e4 LT |
131 | static struct scsi_transport_template *sym2_transport_template = NULL; |
132 | ||
1da177e4 LT |
133 | /* |
134 | * Driver private area in the SCSI command structure. | |
135 | */ | |
136 | struct sym_ucmd { /* Override the SCSI pointer structure */ | |
d637c454 MW |
137 | dma_addr_t data_mapping; |
138 | unsigned char data_mapped; | |
139 | unsigned char to_do; /* For error handling */ | |
140 | void (*old_done)(struct scsi_cmnd *); /* For error handling */ | |
141 | struct completion *eh_done; /* For error handling */ | |
1da177e4 LT |
142 | }; |
143 | ||
144 | #define SYM_UCMD_PTR(cmd) ((struct sym_ucmd *)(&(cmd)->SCp)) | |
145 | #define SYM_SOFTC_PTR(cmd) sym_get_hcb(cmd->device->host) | |
146 | ||
147 | static void __unmap_scsi_data(struct pci_dev *pdev, struct scsi_cmnd *cmd) | |
148 | { | |
149 | int dma_dir = cmd->sc_data_direction; | |
150 | ||
151 | switch(SYM_UCMD_PTR(cmd)->data_mapped) { | |
152 | case 2: | |
153 | pci_unmap_sg(pdev, cmd->buffer, cmd->use_sg, dma_dir); | |
154 | break; | |
155 | case 1: | |
156 | pci_unmap_single(pdev, SYM_UCMD_PTR(cmd)->data_mapping, | |
157 | cmd->request_bufflen, dma_dir); | |
158 | break; | |
159 | } | |
160 | SYM_UCMD_PTR(cmd)->data_mapped = 0; | |
161 | } | |
162 | ||
163 | static dma_addr_t __map_scsi_single_data(struct pci_dev *pdev, struct scsi_cmnd *cmd) | |
164 | { | |
165 | dma_addr_t mapping; | |
166 | int dma_dir = cmd->sc_data_direction; | |
167 | ||
168 | mapping = pci_map_single(pdev, cmd->request_buffer, | |
169 | cmd->request_bufflen, dma_dir); | |
170 | if (mapping) { | |
171 | SYM_UCMD_PTR(cmd)->data_mapped = 1; | |
172 | SYM_UCMD_PTR(cmd)->data_mapping = mapping; | |
173 | } | |
174 | ||
175 | return mapping; | |
176 | } | |
177 | ||
178 | static int __map_scsi_sg_data(struct pci_dev *pdev, struct scsi_cmnd *cmd) | |
179 | { | |
180 | int use_sg; | |
181 | int dma_dir = cmd->sc_data_direction; | |
182 | ||
183 | use_sg = pci_map_sg(pdev, cmd->buffer, cmd->use_sg, dma_dir); | |
184 | if (use_sg > 0) { | |
185 | SYM_UCMD_PTR(cmd)->data_mapped = 2; | |
186 | SYM_UCMD_PTR(cmd)->data_mapping = use_sg; | |
187 | } | |
188 | ||
189 | return use_sg; | |
190 | } | |
191 | ||
192 | #define unmap_scsi_data(np, cmd) \ | |
193 | __unmap_scsi_data(np->s.device, cmd) | |
194 | #define map_scsi_single_data(np, cmd) \ | |
195 | __map_scsi_single_data(np->s.device, cmd) | |
196 | #define map_scsi_sg_data(np, cmd) \ | |
197 | __map_scsi_sg_data(np->s.device, cmd) | |
198 | /* | |
199 | * Complete a pending CAM CCB. | |
200 | */ | |
201 | void sym_xpt_done(struct sym_hcb *np, struct scsi_cmnd *cmd) | |
202 | { | |
203 | unmap_scsi_data(np, cmd); | |
204 | cmd->scsi_done(cmd); | |
205 | } | |
206 | ||
207 | static void sym_xpt_done2(struct sym_hcb *np, struct scsi_cmnd *cmd, int cam_status) | |
208 | { | |
209 | sym_set_cam_status(cmd, cam_status); | |
210 | sym_xpt_done(np, cmd); | |
211 | } | |
212 | ||
213 | ||
214 | /* | |
215 | * Tell the SCSI layer about a BUS RESET. | |
216 | */ | |
217 | void sym_xpt_async_bus_reset(struct sym_hcb *np) | |
218 | { | |
219 | printf_notice("%s: SCSI BUS has been reset.\n", sym_name(np)); | |
220 | np->s.settle_time = jiffies + sym_driver_setup.settle_delay * HZ; | |
221 | np->s.settle_time_valid = 1; | |
222 | if (sym_verbose >= 2) | |
223 | printf_info("%s: command processing suspended for %d seconds\n", | |
224 | sym_name(np), sym_driver_setup.settle_delay); | |
225 | } | |
226 | ||
227 | /* | |
228 | * Tell the SCSI layer about a BUS DEVICE RESET message sent. | |
229 | */ | |
230 | void sym_xpt_async_sent_bdr(struct sym_hcb *np, int target) | |
231 | { | |
232 | printf_notice("%s: TARGET %d has been reset.\n", sym_name(np), target); | |
233 | } | |
234 | ||
235 | /* | |
236 | * Choose the more appropriate CAM status if | |
237 | * the IO encountered an extended error. | |
238 | */ | |
239 | static int sym_xerr_cam_status(int cam_status, int x_status) | |
240 | { | |
241 | if (x_status) { | |
242 | if (x_status & XE_PARITY_ERR) | |
243 | cam_status = DID_PARITY; | |
244 | else if (x_status &(XE_EXTRA_DATA|XE_SODL_UNRUN|XE_SWIDE_OVRUN)) | |
245 | cam_status = DID_ERROR; | |
246 | else if (x_status & XE_BAD_PHASE) | |
247 | cam_status = DID_ERROR; | |
248 | else | |
249 | cam_status = DID_ERROR; | |
250 | } | |
251 | return cam_status; | |
252 | } | |
253 | ||
254 | /* | |
255 | * Build CAM result for a failed or auto-sensed IO. | |
256 | */ | |
257 | void sym_set_cam_result_error(struct sym_hcb *np, struct sym_ccb *cp, int resid) | |
258 | { | |
259 | struct scsi_cmnd *cmd = cp->cmd; | |
260 | u_int cam_status, scsi_status, drv_status; | |
261 | ||
262 | drv_status = 0; | |
263 | cam_status = DID_OK; | |
264 | scsi_status = cp->ssss_status; | |
265 | ||
266 | if (cp->host_flags & HF_SENSE) { | |
267 | scsi_status = cp->sv_scsi_status; | |
268 | resid = cp->sv_resid; | |
269 | if (sym_verbose && cp->sv_xerr_status) | |
270 | sym_print_xerr(cmd, cp->sv_xerr_status); | |
271 | if (cp->host_status == HS_COMPLETE && | |
272 | cp->ssss_status == S_GOOD && | |
273 | cp->xerr_status == 0) { | |
274 | cam_status = sym_xerr_cam_status(DID_OK, | |
275 | cp->sv_xerr_status); | |
276 | drv_status = DRIVER_SENSE; | |
277 | /* | |
278 | * Bounce back the sense data to user. | |
279 | */ | |
280 | memset(&cmd->sense_buffer, 0, sizeof(cmd->sense_buffer)); | |
281 | memcpy(cmd->sense_buffer, cp->sns_bbuf, | |
282 | min(sizeof(cmd->sense_buffer), | |
283 | (size_t)SYM_SNS_BBUF_LEN)); | |
284 | #if 0 | |
285 | /* | |
286 | * If the device reports a UNIT ATTENTION condition | |
287 | * due to a RESET condition, we should consider all | |
288 | * disconnect CCBs for this unit as aborted. | |
289 | */ | |
290 | if (1) { | |
291 | u_char *p; | |
292 | p = (u_char *) cmd->sense_data; | |
293 | if (p[0]==0x70 && p[2]==0x6 && p[12]==0x29) | |
294 | sym_clear_tasks(np, DID_ABORT, | |
295 | cp->target,cp->lun, -1); | |
296 | } | |
297 | #endif | |
298 | } else { | |
299 | /* | |
300 | * Error return from our internal request sense. This | |
301 | * is bad: we must clear the contingent allegiance | |
302 | * condition otherwise the device will always return | |
303 | * BUSY. Use a big stick. | |
304 | */ | |
305 | sym_reset_scsi_target(np, cmd->device->id); | |
306 | cam_status = DID_ERROR; | |
307 | } | |
308 | } else if (cp->host_status == HS_COMPLETE) /* Bad SCSI status */ | |
309 | cam_status = DID_OK; | |
310 | else if (cp->host_status == HS_SEL_TIMEOUT) /* Selection timeout */ | |
311 | cam_status = DID_NO_CONNECT; | |
312 | else if (cp->host_status == HS_UNEXPECTED) /* Unexpected BUS FREE*/ | |
313 | cam_status = DID_ERROR; | |
314 | else { /* Extended error */ | |
315 | if (sym_verbose) { | |
316 | sym_print_addr(cmd, "COMMAND FAILED (%x %x %x).\n", | |
317 | cp->host_status, cp->ssss_status, | |
318 | cp->xerr_status); | |
319 | } | |
320 | /* | |
321 | * Set the most appropriate value for CAM status. | |
322 | */ | |
323 | cam_status = sym_xerr_cam_status(DID_ERROR, cp->xerr_status); | |
324 | } | |
325 | cmd->resid = resid; | |
326 | cmd->result = (drv_status << 24) + (cam_status << 16) + scsi_status; | |
327 | } | |
328 | ||
329 | ||
330 | /* | |
331 | * Build the scatter/gather array for an I/O. | |
332 | */ | |
333 | ||
334 | static int sym_scatter_no_sglist(struct sym_hcb *np, struct sym_ccb *cp, struct scsi_cmnd *cmd) | |
335 | { | |
336 | struct sym_tblmove *data = &cp->phys.data[SYM_CONF_MAX_SG-1]; | |
337 | int segment; | |
53222b90 | 338 | unsigned int len = cmd->request_bufflen; |
1da177e4 | 339 | |
53222b90 | 340 | if (len) { |
1da177e4 LT |
341 | dma_addr_t baddr = map_scsi_single_data(np, cmd); |
342 | if (baddr) { | |
53222b90 MW |
343 | if (len & 1) { |
344 | struct sym_tcb *tp = &np->target[cp->target]; | |
345 | if (tp->head.wval & EWS) { | |
346 | len++; | |
347 | cp->odd_byte_adjustment++; | |
348 | } | |
349 | } | |
350 | cp->data_len = len; | |
351 | sym_build_sge(np, data, baddr, len); | |
1da177e4 LT |
352 | segment = 1; |
353 | } else { | |
354 | segment = -2; | |
355 | } | |
356 | } else { | |
357 | segment = 0; | |
358 | } | |
359 | ||
360 | return segment; | |
361 | } | |
362 | ||
363 | static int sym_scatter(struct sym_hcb *np, struct sym_ccb *cp, struct scsi_cmnd *cmd) | |
364 | { | |
365 | int segment; | |
366 | int use_sg = (int) cmd->use_sg; | |
367 | ||
368 | cp->data_len = 0; | |
369 | ||
370 | if (!use_sg) | |
371 | segment = sym_scatter_no_sglist(np, cp, cmd); | |
372 | else if ((use_sg = map_scsi_sg_data(np, cmd)) > 0) { | |
373 | struct scatterlist *scatter = (struct scatterlist *)cmd->buffer; | |
53222b90 | 374 | struct sym_tcb *tp = &np->target[cp->target]; |
1da177e4 LT |
375 | struct sym_tblmove *data; |
376 | ||
377 | if (use_sg > SYM_CONF_MAX_SG) { | |
378 | unmap_scsi_data(np, cmd); | |
379 | return -1; | |
380 | } | |
381 | ||
382 | data = &cp->phys.data[SYM_CONF_MAX_SG - use_sg]; | |
383 | ||
384 | for (segment = 0; segment < use_sg; segment++) { | |
385 | dma_addr_t baddr = sg_dma_address(&scatter[segment]); | |
386 | unsigned int len = sg_dma_len(&scatter[segment]); | |
387 | ||
53222b90 MW |
388 | if ((len & 1) && (tp->head.wval & EWS)) { |
389 | len++; | |
390 | cp->odd_byte_adjustment++; | |
391 | } | |
392 | ||
1da177e4 LT |
393 | sym_build_sge(np, &data[segment], baddr, len); |
394 | cp->data_len += len; | |
395 | } | |
396 | } else { | |
397 | segment = -2; | |
398 | } | |
399 | ||
400 | return segment; | |
401 | } | |
402 | ||
403 | /* | |
404 | * Queue a SCSI command. | |
405 | */ | |
406 | static int sym_queue_command(struct sym_hcb *np, struct scsi_cmnd *cmd) | |
407 | { | |
408 | struct scsi_device *sdev = cmd->device; | |
409 | struct sym_tcb *tp; | |
410 | struct sym_lcb *lp; | |
411 | struct sym_ccb *cp; | |
412 | int order; | |
413 | ||
414 | /* | |
415 | * Minimal checkings, so that we will not | |
416 | * go outside our tables. | |
417 | */ | |
53222b90 MW |
418 | if (sdev->id == np->myaddr) { |
419 | sym_xpt_done2(np, cmd, DID_NO_CONNECT); | |
1da177e4 LT |
420 | return 0; |
421 | } | |
422 | ||
423 | /* | |
424 | * Retrieve the target descriptor. | |
425 | */ | |
426 | tp = &np->target[sdev->id]; | |
427 | ||
1da177e4 LT |
428 | /* |
429 | * Select tagged/untagged. | |
430 | */ | |
431 | lp = sym_lp(tp, sdev->lun); | |
432 | order = (lp && lp->s.reqtags) ? M_SIMPLE_TAG : 0; | |
433 | ||
434 | /* | |
435 | * Queue the SCSI IO. | |
436 | */ | |
437 | cp = sym_get_ccb(np, cmd, order); | |
438 | if (!cp) | |
439 | return 1; /* Means resource shortage */ | |
440 | sym_queue_scsiio(np, cmd, cp); | |
441 | return 0; | |
442 | } | |
443 | ||
444 | /* | |
445 | * Setup buffers and pointers that address the CDB. | |
446 | */ | |
447 | static inline int sym_setup_cdb(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *cp) | |
448 | { | |
1da177e4 | 449 | memcpy(cp->cdb_buf, cmd->cmnd, cmd->cmd_len); |
1da177e4 | 450 | |
53222b90 MW |
451 | cp->phys.cmd.addr = CCB_BA(cp, cdb_buf[0]); |
452 | cp->phys.cmd.size = cpu_to_scr(cmd->cmd_len); | |
1da177e4 LT |
453 | |
454 | return 0; | |
455 | } | |
456 | ||
457 | /* | |
458 | * Setup pointers that address the data and start the I/O. | |
459 | */ | |
460 | int sym_setup_data_and_start(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *cp) | |
461 | { | |
44f30b0f MW |
462 | u32 lastp, goalp; |
463 | int dir; | |
1da177e4 LT |
464 | |
465 | /* | |
466 | * Build the CDB. | |
467 | */ | |
468 | if (sym_setup_cdb(np, cmd, cp)) | |
469 | goto out_abort; | |
470 | ||
471 | /* | |
472 | * No direction means no data. | |
473 | */ | |
474 | dir = cmd->sc_data_direction; | |
475 | if (dir != DMA_NONE) { | |
476 | cp->segments = sym_scatter(np, cp, cmd); | |
477 | if (cp->segments < 0) { | |
53222b90 | 478 | sym_set_cam_status(cmd, DID_ERROR); |
1da177e4 LT |
479 | goto out_abort; |
480 | } | |
44f30b0f MW |
481 | |
482 | /* | |
483 | * No segments means no data. | |
484 | */ | |
485 | if (!cp->segments) | |
486 | dir = DMA_NONE; | |
1da177e4 LT |
487 | } else { |
488 | cp->data_len = 0; | |
489 | cp->segments = 0; | |
490 | } | |
491 | ||
492 | /* | |
44f30b0f MW |
493 | * Set the data pointer. |
494 | */ | |
495 | switch (dir) { | |
496 | case DMA_BIDIRECTIONAL: | |
497 | printk("%s: got DMA_BIDIRECTIONAL command", sym_name(np)); | |
498 | sym_set_cam_status(cmd, DID_ERROR); | |
499 | goto out_abort; | |
500 | case DMA_TO_DEVICE: | |
501 | goalp = SCRIPTA_BA(np, data_out2) + 8; | |
502 | lastp = goalp - 8 - (cp->segments * (2*4)); | |
503 | break; | |
504 | case DMA_FROM_DEVICE: | |
505 | cp->host_flags |= HF_DATA_IN; | |
506 | goalp = SCRIPTA_BA(np, data_in2) + 8; | |
507 | lastp = goalp - 8 - (cp->segments * (2*4)); | |
508 | break; | |
509 | case DMA_NONE: | |
510 | default: | |
511 | lastp = goalp = SCRIPTB_BA(np, no_data); | |
512 | break; | |
513 | } | |
514 | ||
515 | /* | |
516 | * Set all pointers values needed by SCRIPTS. | |
1da177e4 | 517 | */ |
44f30b0f MW |
518 | cp->phys.head.lastp = cpu_to_scr(lastp); |
519 | cp->phys.head.savep = cpu_to_scr(lastp); | |
520 | cp->startp = cp->phys.head.savep; | |
521 | cp->goalp = cpu_to_scr(goalp); | |
1da177e4 LT |
522 | |
523 | /* | |
524 | * When `#ifed 1', the code below makes the driver | |
525 | * panic on the first attempt to write to a SCSI device. | |
526 | * It is the first test we want to do after a driver | |
527 | * change that does not seem obviously safe. :) | |
528 | */ | |
529 | #if 0 | |
530 | switch (cp->cdb_buf[0]) { | |
531 | case 0x0A: case 0x2A: case 0xAA: | |
532 | panic("XXXXXXXXXXXXX WRITE NOT YET ALLOWED XXXXXXXXXXXXXX\n"); | |
533 | break; | |
534 | default: | |
535 | break; | |
536 | } | |
537 | #endif | |
538 | ||
539 | /* | |
540 | * activate this job. | |
541 | */ | |
3bea15a7 | 542 | sym_put_start_queue(np, cp); |
1da177e4 LT |
543 | return 0; |
544 | ||
545 | out_abort: | |
546 | sym_free_ccb(np, cp); | |
547 | sym_xpt_done(np, cmd); | |
548 | return 0; | |
549 | } | |
550 | ||
551 | ||
552 | /* | |
553 | * timer daemon. | |
554 | * | |
555 | * Misused to keep the driver running when | |
556 | * interrupts are not configured correctly. | |
557 | */ | |
558 | static void sym_timer(struct sym_hcb *np) | |
559 | { | |
560 | unsigned long thistime = jiffies; | |
561 | ||
562 | /* | |
563 | * Restart the timer. | |
564 | */ | |
565 | np->s.timer.expires = thistime + SYM_CONF_TIMER_INTERVAL; | |
566 | add_timer(&np->s.timer); | |
567 | ||
568 | /* | |
569 | * If we are resetting the ncr, wait for settle_time before | |
570 | * clearing it. Then command processing will be resumed. | |
571 | */ | |
572 | if (np->s.settle_time_valid) { | |
573 | if (time_before_eq(np->s.settle_time, thistime)) { | |
574 | if (sym_verbose >= 2 ) | |
575 | printk("%s: command processing resumed\n", | |
576 | sym_name(np)); | |
577 | np->s.settle_time_valid = 0; | |
578 | } | |
579 | return; | |
580 | } | |
581 | ||
582 | /* | |
583 | * Nothing to do for now, but that may come. | |
584 | */ | |
585 | if (np->s.lasttime + 4*HZ < thistime) { | |
586 | np->s.lasttime = thistime; | |
587 | } | |
588 | ||
589 | #ifdef SYM_CONF_PCIQ_MAY_MISS_COMPLETIONS | |
590 | /* | |
591 | * Some way-broken PCI bridges may lead to | |
592 | * completions being lost when the clearing | |
593 | * of the INTFLY flag by the CPU occurs | |
594 | * concurrently with the chip raising this flag. | |
595 | * If this ever happen, lost completions will | |
596 | * be reaped here. | |
597 | */ | |
598 | sym_wakeup_done(np); | |
599 | #endif | |
600 | } | |
601 | ||
602 | ||
603 | /* | |
604 | * PCI BUS error handler. | |
605 | */ | |
606 | void sym_log_bus_error(struct sym_hcb *np) | |
607 | { | |
608 | u_short pci_sts; | |
609 | pci_read_config_word(np->s.device, PCI_STATUS, &pci_sts); | |
610 | if (pci_sts & 0xf900) { | |
611 | pci_write_config_word(np->s.device, PCI_STATUS, pci_sts); | |
612 | printf("%s: PCI STATUS = 0x%04x\n", | |
613 | sym_name(np), pci_sts & 0xf900); | |
614 | } | |
615 | } | |
616 | ||
617 | /* | |
618 | * queuecommand method. Entered with the host adapter lock held and | |
619 | * interrupts disabled. | |
620 | */ | |
621 | static int sym53c8xx_queue_command(struct scsi_cmnd *cmd, | |
622 | void (*done)(struct scsi_cmnd *)) | |
623 | { | |
624 | struct sym_hcb *np = SYM_SOFTC_PTR(cmd); | |
625 | struct sym_ucmd *ucp = SYM_UCMD_PTR(cmd); | |
626 | int sts = 0; | |
627 | ||
628 | cmd->scsi_done = done; | |
629 | memset(ucp, 0, sizeof(*ucp)); | |
630 | ||
631 | /* | |
632 | * Shorten our settle_time if needed for | |
633 | * this command not to time out. | |
634 | */ | |
635 | if (np->s.settle_time_valid && cmd->timeout_per_command) { | |
636 | unsigned long tlimit = jiffies + cmd->timeout_per_command; | |
637 | tlimit -= SYM_CONF_TIMER_INTERVAL*2; | |
638 | if (time_after(np->s.settle_time, tlimit)) { | |
639 | np->s.settle_time = tlimit; | |
640 | } | |
641 | } | |
642 | ||
643 | if (np->s.settle_time_valid) | |
644 | return SCSI_MLQUEUE_HOST_BUSY; | |
645 | ||
646 | sts = sym_queue_command(np, cmd); | |
647 | if (sts) | |
648 | return SCSI_MLQUEUE_HOST_BUSY; | |
649 | return 0; | |
650 | } | |
651 | ||
652 | /* | |
653 | * Linux entry point of the interrupt handler. | |
654 | */ | |
655 | static irqreturn_t sym53c8xx_intr(int irq, void *dev_id, struct pt_regs * regs) | |
656 | { | |
657 | unsigned long flags; | |
658 | struct sym_hcb *np = (struct sym_hcb *)dev_id; | |
659 | ||
660 | if (DEBUG_FLAGS & DEBUG_TINY) printf_debug ("["); | |
661 | ||
662 | spin_lock_irqsave(np->s.host->host_lock, flags); | |
663 | sym_interrupt(np); | |
664 | spin_unlock_irqrestore(np->s.host->host_lock, flags); | |
665 | ||
666 | if (DEBUG_FLAGS & DEBUG_TINY) printf_debug ("]\n"); | |
667 | ||
668 | return IRQ_HANDLED; | |
669 | } | |
670 | ||
671 | /* | |
672 | * Linux entry point of the timer handler | |
673 | */ | |
674 | static void sym53c8xx_timer(unsigned long npref) | |
675 | { | |
676 | struct sym_hcb *np = (struct sym_hcb *)npref; | |
677 | unsigned long flags; | |
678 | ||
679 | spin_lock_irqsave(np->s.host->host_lock, flags); | |
680 | sym_timer(np); | |
681 | spin_unlock_irqrestore(np->s.host->host_lock, flags); | |
682 | } | |
683 | ||
684 | ||
685 | /* | |
686 | * What the eh thread wants us to perform. | |
687 | */ | |
688 | #define SYM_EH_ABORT 0 | |
689 | #define SYM_EH_DEVICE_RESET 1 | |
690 | #define SYM_EH_BUS_RESET 2 | |
691 | #define SYM_EH_HOST_RESET 3 | |
692 | ||
693 | /* | |
694 | * What we will do regarding the involved SCSI command. | |
695 | */ | |
696 | #define SYM_EH_DO_IGNORE 0 | |
1da177e4 LT |
697 | #define SYM_EH_DO_WAIT 2 |
698 | ||
699 | /* | |
b4e93a73 | 700 | * scsi_done() alias when error recovery is in progress. |
1da177e4 | 701 | */ |
b4e93a73 | 702 | static void sym_eh_done(struct scsi_cmnd *cmd) |
1da177e4 | 703 | { |
b4e93a73 MW |
704 | struct sym_ucmd *ucmd = SYM_UCMD_PTR(cmd); |
705 | BUILD_BUG_ON(sizeof(struct scsi_pointer) < sizeof(struct sym_ucmd)); | |
1da177e4 | 706 | |
b4e93a73 | 707 | cmd->scsi_done = ucmd->old_done; |
1da177e4 | 708 | |
b4e93a73 | 709 | if (ucmd->to_do == SYM_EH_DO_WAIT) |
d637c454 | 710 | complete(ucmd->eh_done); |
1da177e4 LT |
711 | } |
712 | ||
1da177e4 LT |
713 | /* |
714 | * Generic method for our eh processing. | |
715 | * The 'op' argument tells what we have to do. | |
716 | */ | |
717 | static int sym_eh_handler(int op, char *opname, struct scsi_cmnd *cmd) | |
718 | { | |
719 | struct sym_hcb *np = SYM_SOFTC_PTR(cmd); | |
b4e93a73 MW |
720 | struct sym_ucmd *ucmd = SYM_UCMD_PTR(cmd); |
721 | struct Scsi_Host *host = cmd->device->host; | |
1da177e4 LT |
722 | SYM_QUEHEAD *qp; |
723 | int to_do = SYM_EH_DO_IGNORE; | |
724 | int sts = -1; | |
d637c454 | 725 | struct completion eh_done; |
1da177e4 LT |
726 | |
727 | dev_warn(&cmd->device->sdev_gendev, "%s operation started.\n", opname); | |
728 | ||
b4e93a73 | 729 | spin_lock_irq(host->host_lock); |
1da177e4 LT |
730 | /* This one is queued in some place -> to wait for completion */ |
731 | FOR_EACH_QUEUED_ELEMENT(&np->busy_ccbq, qp) { | |
732 | struct sym_ccb *cp = sym_que_entry(qp, struct sym_ccb, link_ccbq); | |
733 | if (cp->cmd == cmd) { | |
734 | to_do = SYM_EH_DO_WAIT; | |
ab19d52b | 735 | break; |
1da177e4 LT |
736 | } |
737 | } | |
738 | ||
ab19d52b | 739 | if (to_do == SYM_EH_DO_WAIT) { |
d637c454 | 740 | init_completion(&eh_done); |
b4e93a73 | 741 | ucmd->old_done = cmd->scsi_done; |
d637c454 MW |
742 | ucmd->eh_done = &eh_done; |
743 | wmb(); | |
1da177e4 | 744 | cmd->scsi_done = sym_eh_done; |
1da177e4 LT |
745 | } |
746 | ||
747 | /* Try to proceed the operation we have been asked for */ | |
748 | sts = -1; | |
749 | switch(op) { | |
750 | case SYM_EH_ABORT: | |
751 | sts = sym_abort_scsiio(np, cmd, 1); | |
752 | break; | |
753 | case SYM_EH_DEVICE_RESET: | |
754 | sts = sym_reset_scsi_target(np, cmd->device->id); | |
755 | break; | |
756 | case SYM_EH_BUS_RESET: | |
757 | sym_reset_scsi_bus(np, 1); | |
758 | sts = 0; | |
759 | break; | |
760 | case SYM_EH_HOST_RESET: | |
761 | sym_reset_scsi_bus(np, 0); | |
762 | sym_start_up (np, 1); | |
763 | sts = 0; | |
764 | break; | |
765 | default: | |
766 | break; | |
767 | } | |
768 | ||
769 | /* On error, restore everything and cross fingers :) */ | |
770 | if (sts) { | |
b4e93a73 | 771 | cmd->scsi_done = ucmd->old_done; |
1da177e4 LT |
772 | to_do = SYM_EH_DO_IGNORE; |
773 | } | |
774 | ||
b4e93a73 MW |
775 | ucmd->to_do = to_do; |
776 | spin_unlock_irq(host->host_lock); | |
1da177e4 | 777 | |
1da177e4 | 778 | if (to_do == SYM_EH_DO_WAIT) { |
d637c454 | 779 | if (!wait_for_completion_timeout(&eh_done, 5*HZ)) { |
b4e93a73 | 780 | ucmd->to_do = SYM_EH_DO_IGNORE; |
d637c454 | 781 | wmb(); |
1da177e4 | 782 | sts = -2; |
b4e93a73 | 783 | } |
1da177e4 LT |
784 | } |
785 | dev_warn(&cmd->device->sdev_gendev, "%s operation %s.\n", opname, | |
786 | sts==0 ? "complete" :sts==-2 ? "timed-out" : "failed"); | |
787 | return sts ? SCSI_FAILED : SCSI_SUCCESS; | |
788 | } | |
789 | ||
790 | ||
791 | /* | |
792 | * Error handlers called from the eh thread (one thread per HBA). | |
793 | */ | |
794 | static int sym53c8xx_eh_abort_handler(struct scsi_cmnd *cmd) | |
795 | { | |
ab19d52b | 796 | return sym_eh_handler(SYM_EH_ABORT, "ABORT", cmd); |
1da177e4 LT |
797 | } |
798 | ||
799 | static int sym53c8xx_eh_device_reset_handler(struct scsi_cmnd *cmd) | |
800 | { | |
ab19d52b | 801 | return sym_eh_handler(SYM_EH_DEVICE_RESET, "DEVICE RESET", cmd); |
1da177e4 LT |
802 | } |
803 | ||
804 | static int sym53c8xx_eh_bus_reset_handler(struct scsi_cmnd *cmd) | |
805 | { | |
ab19d52b | 806 | return sym_eh_handler(SYM_EH_BUS_RESET, "BUS RESET", cmd); |
1da177e4 LT |
807 | } |
808 | ||
809 | static int sym53c8xx_eh_host_reset_handler(struct scsi_cmnd *cmd) | |
810 | { | |
ab19d52b | 811 | return sym_eh_handler(SYM_EH_HOST_RESET, "HOST RESET", cmd); |
1da177e4 LT |
812 | } |
813 | ||
814 | /* | |
815 | * Tune device queuing depth, according to various limits. | |
816 | */ | |
817 | static void sym_tune_dev_queuing(struct sym_tcb *tp, int lun, u_short reqtags) | |
818 | { | |
819 | struct sym_lcb *lp = sym_lp(tp, lun); | |
820 | u_short oldtags; | |
821 | ||
822 | if (!lp) | |
823 | return; | |
824 | ||
825 | oldtags = lp->s.reqtags; | |
826 | ||
827 | if (reqtags > lp->s.scdev_depth) | |
828 | reqtags = lp->s.scdev_depth; | |
829 | ||
1da177e4 LT |
830 | lp->s.reqtags = reqtags; |
831 | ||
832 | if (reqtags != oldtags) { | |
53222b90 | 833 | dev_info(&tp->starget->dev, |
1da177e4 | 834 | "tagged command queuing %s, command queue depth %d.\n", |
3bea15a7 | 835 | lp->s.reqtags ? "enabled" : "disabled", reqtags); |
1da177e4 LT |
836 | } |
837 | } | |
838 | ||
839 | /* | |
840 | * Linux select queue depths function | |
841 | */ | |
842 | #define DEF_DEPTH (sym_driver_setup.max_tag) | |
843 | #define ALL_TARGETS -2 | |
844 | #define NO_TARGET -1 | |
845 | #define ALL_LUNS -2 | |
846 | #define NO_LUN -1 | |
847 | ||
848 | static int device_queue_depth(struct sym_hcb *np, int target, int lun) | |
849 | { | |
850 | int c, h, t, u, v; | |
851 | char *p = sym_driver_setup.tag_ctrl; | |
852 | char *ep; | |
853 | ||
854 | h = -1; | |
855 | t = NO_TARGET; | |
856 | u = NO_LUN; | |
857 | while ((c = *p++) != 0) { | |
858 | v = simple_strtoul(p, &ep, 0); | |
859 | switch(c) { | |
860 | case '/': | |
861 | ++h; | |
862 | t = ALL_TARGETS; | |
863 | u = ALL_LUNS; | |
864 | break; | |
865 | case 't': | |
866 | if (t != target) | |
867 | t = (target == v) ? v : NO_TARGET; | |
868 | u = ALL_LUNS; | |
869 | break; | |
870 | case 'u': | |
871 | if (u != lun) | |
872 | u = (lun == v) ? v : NO_LUN; | |
873 | break; | |
874 | case 'q': | |
875 | if (h == np->s.unit && | |
876 | (t == ALL_TARGETS || t == target) && | |
877 | (u == ALL_LUNS || u == lun)) | |
878 | return v; | |
879 | break; | |
880 | case '-': | |
881 | t = ALL_TARGETS; | |
882 | u = ALL_LUNS; | |
883 | break; | |
884 | default: | |
885 | break; | |
886 | } | |
887 | p = ep; | |
888 | } | |
889 | return DEF_DEPTH; | |
890 | } | |
891 | ||
53222b90 | 892 | static int sym53c8xx_slave_alloc(struct scsi_device *sdev) |
1da177e4 | 893 | { |
84e203a2 MW |
894 | struct sym_hcb *np = sym_get_hcb(sdev->host); |
895 | struct sym_tcb *tp = &np->target[sdev->id]; | |
896 | struct sym_lcb *lp; | |
1da177e4 | 897 | |
53222b90 MW |
898 | if (sdev->id >= SYM_CONF_MAX_TARGET || sdev->lun >= SYM_CONF_MAX_LUN) |
899 | return -ENXIO; | |
1da177e4 | 900 | |
66e8d1cc | 901 | tp->starget = sdev->sdev_target; |
53222b90 MW |
902 | /* |
903 | * Fail the device init if the device is flagged NOSCAN at BOOT in | |
904 | * the NVRAM. This may speed up boot and maintain coherency with | |
905 | * BIOS device numbering. Clearing the flag allows the user to | |
906 | * rescan skipped devices later. We also return an error for | |
907 | * devices not flagged for SCAN LUNS in the NVRAM since some single | |
908 | * lun devices behave badly when asked for a non zero LUN. | |
909 | */ | |
910 | ||
66e8d1cc | 911 | if (tp->usrflags & SYM_SCAN_BOOT_DISABLED) { |
53222b90 | 912 | tp->usrflags &= ~SYM_SCAN_BOOT_DISABLED; |
66e8d1cc MW |
913 | starget_printk(KERN_INFO, tp->starget, |
914 | "Scan at boot disabled in NVRAM\n"); | |
53222b90 MW |
915 | return -ENXIO; |
916 | } | |
917 | ||
66e8d1cc MW |
918 | if (tp->usrflags & SYM_SCAN_LUNS_DISABLED) { |
919 | if (sdev->lun != 0) | |
920 | return -ENXIO; | |
921 | starget_printk(KERN_INFO, tp->starget, | |
922 | "Multiple LUNs disabled in NVRAM\n"); | |
923 | } | |
924 | ||
84e203a2 MW |
925 | lp = sym_alloc_lcb(np, sdev->id, sdev->lun); |
926 | if (!lp) | |
927 | return -ENOMEM; | |
928 | ||
b37df489 MW |
929 | spi_min_period(tp->starget) = tp->usr_period; |
930 | spi_max_width(tp->starget) = tp->usr_width; | |
931 | ||
53222b90 | 932 | return 0; |
1da177e4 LT |
933 | } |
934 | ||
935 | /* | |
936 | * Linux entry point for device queue sizing. | |
937 | */ | |
84e203a2 | 938 | static int sym53c8xx_slave_configure(struct scsi_device *sdev) |
1da177e4 | 939 | { |
84e203a2 MW |
940 | struct sym_hcb *np = sym_get_hcb(sdev->host); |
941 | struct sym_tcb *tp = &np->target[sdev->id]; | |
942 | struct sym_lcb *lp = sym_lp(tp, sdev->lun); | |
1da177e4 LT |
943 | int reqtags, depth_to_use; |
944 | ||
1da177e4 LT |
945 | /* |
946 | * Get user flags. | |
947 | */ | |
948 | lp->curr_flags = lp->user_flags; | |
949 | ||
950 | /* | |
951 | * Select queue depth from driver setup. | |
952 | * Donnot use more than configured by user. | |
953 | * Use at least 2. | |
954 | * Donnot use more than our maximum. | |
955 | */ | |
84e203a2 | 956 | reqtags = device_queue_depth(np, sdev->id, sdev->lun); |
1da177e4 LT |
957 | if (reqtags > tp->usrtags) |
958 | reqtags = tp->usrtags; | |
84e203a2 | 959 | if (!sdev->tagged_supported) |
1da177e4 LT |
960 | reqtags = 0; |
961 | #if 1 /* Avoid to locally queue commands for no good reasons */ | |
962 | if (reqtags > SYM_CONF_MAX_TAG) | |
963 | reqtags = SYM_CONF_MAX_TAG; | |
964 | depth_to_use = (reqtags ? reqtags : 2); | |
965 | #else | |
966 | depth_to_use = (reqtags ? SYM_CONF_MAX_TAG : 2); | |
967 | #endif | |
84e203a2 MW |
968 | scsi_adjust_queue_depth(sdev, |
969 | (sdev->tagged_supported ? | |
1da177e4 LT |
970 | MSG_SIMPLE_TAG : 0), |
971 | depth_to_use); | |
972 | lp->s.scdev_depth = depth_to_use; | |
84e203a2 | 973 | sym_tune_dev_queuing(tp, sdev->lun, reqtags); |
1da177e4 | 974 | |
84e203a2 MW |
975 | if (!spi_initial_dv(sdev->sdev_target)) |
976 | spi_dv_device(sdev); | |
1da177e4 LT |
977 | |
978 | return 0; | |
979 | } | |
980 | ||
84e203a2 MW |
981 | static void sym53c8xx_slave_destroy(struct scsi_device *sdev) |
982 | { | |
983 | struct sym_hcb *np = sym_get_hcb(sdev->host); | |
984 | struct sym_lcb *lp = sym_lp(&np->target[sdev->id], sdev->lun); | |
985 | ||
986 | if (lp->itlq_tbl) | |
987 | sym_mfree_dma(lp->itlq_tbl, SYM_CONF_MAX_TASK * 4, "ITLQ_TBL"); | |
988 | kfree(lp->cb_tags); | |
989 | sym_mfree_dma(lp, sizeof(*lp), "LCB"); | |
990 | } | |
991 | ||
1da177e4 LT |
992 | /* |
993 | * Linux entry point for info() function | |
994 | */ | |
995 | static const char *sym53c8xx_info (struct Scsi_Host *host) | |
996 | { | |
997 | return SYM_DRIVER_NAME; | |
998 | } | |
999 | ||
1000 | ||
1001 | #ifdef SYM_LINUX_PROC_INFO_SUPPORT | |
1002 | /* | |
1003 | * Proc file system stuff | |
1004 | * | |
1005 | * A read operation returns adapter information. | |
1006 | * A write operation is a control command. | |
1007 | * The string is parsed in the driver code and the command is passed | |
1008 | * to the sym_usercmd() function. | |
1009 | */ | |
1010 | ||
1011 | #ifdef SYM_LINUX_USER_COMMAND_SUPPORT | |
1012 | ||
1013 | struct sym_usrcmd { | |
1014 | u_long target; | |
1015 | u_long lun; | |
1016 | u_long data; | |
1017 | u_long cmd; | |
1018 | }; | |
1019 | ||
1020 | #define UC_SETSYNC 10 | |
1021 | #define UC_SETTAGS 11 | |
1022 | #define UC_SETDEBUG 12 | |
1023 | #define UC_SETWIDE 14 | |
1024 | #define UC_SETFLAG 15 | |
1025 | #define UC_SETVERBOSE 17 | |
1026 | #define UC_RESETDEV 18 | |
1027 | #define UC_CLEARDEV 19 | |
1028 | ||
1029 | static void sym_exec_user_command (struct sym_hcb *np, struct sym_usrcmd *uc) | |
1030 | { | |
1031 | struct sym_tcb *tp; | |
1032 | int t, l; | |
1033 | ||
1034 | switch (uc->cmd) { | |
1035 | case 0: return; | |
1036 | ||
1037 | #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT | |
1038 | case UC_SETDEBUG: | |
1039 | sym_debug_flags = uc->data; | |
1040 | break; | |
1041 | #endif | |
1042 | case UC_SETVERBOSE: | |
1043 | np->verbose = uc->data; | |
1044 | break; | |
1045 | default: | |
1046 | /* | |
1047 | * We assume that other commands apply to targets. | |
1048 | * This should always be the case and avoid the below | |
1049 | * 4 lines to be repeated 6 times. | |
1050 | */ | |
1051 | for (t = 0; t < SYM_CONF_MAX_TARGET; t++) { | |
1052 | if (!((uc->target >> t) & 1)) | |
1053 | continue; | |
1054 | tp = &np->target[t]; | |
1055 | ||
1056 | switch (uc->cmd) { | |
1057 | ||
1058 | case UC_SETSYNC: | |
1059 | if (!uc->data || uc->data >= 255) { | |
1060 | tp->tgoal.iu = tp->tgoal.dt = | |
1061 | tp->tgoal.qas = 0; | |
1062 | tp->tgoal.offset = 0; | |
1063 | } else if (uc->data <= 9 && np->minsync_dt) { | |
1064 | if (uc->data < np->minsync_dt) | |
1065 | uc->data = np->minsync_dt; | |
1066 | tp->tgoal.iu = tp->tgoal.dt = | |
1067 | tp->tgoal.qas = 1; | |
1068 | tp->tgoal.width = 1; | |
1069 | tp->tgoal.period = uc->data; | |
1070 | tp->tgoal.offset = np->maxoffs_dt; | |
1071 | } else { | |
1072 | if (uc->data < np->minsync) | |
1073 | uc->data = np->minsync; | |
1074 | tp->tgoal.iu = tp->tgoal.dt = | |
1075 | tp->tgoal.qas = 0; | |
1076 | tp->tgoal.period = uc->data; | |
1077 | tp->tgoal.offset = np->maxoffs; | |
1078 | } | |
1079 | tp->tgoal.check_nego = 1; | |
1080 | break; | |
1081 | case UC_SETWIDE: | |
1082 | tp->tgoal.width = uc->data ? 1 : 0; | |
1083 | tp->tgoal.check_nego = 1; | |
1084 | break; | |
1085 | case UC_SETTAGS: | |
1086 | for (l = 0; l < SYM_CONF_MAX_LUN; l++) | |
1087 | sym_tune_dev_queuing(tp, l, uc->data); | |
1088 | break; | |
1089 | case UC_RESETDEV: | |
1090 | tp->to_reset = 1; | |
1091 | np->istat_sem = SEM; | |
1092 | OUTB(np, nc_istat, SIGP|SEM); | |
1093 | break; | |
1094 | case UC_CLEARDEV: | |
1095 | for (l = 0; l < SYM_CONF_MAX_LUN; l++) { | |
1096 | struct sym_lcb *lp = sym_lp(tp, l); | |
1097 | if (lp) lp->to_clear = 1; | |
1098 | } | |
1099 | np->istat_sem = SEM; | |
1100 | OUTB(np, nc_istat, SIGP|SEM); | |
1101 | break; | |
1102 | case UC_SETFLAG: | |
1103 | tp->usrflags = uc->data; | |
1104 | break; | |
1105 | } | |
1106 | } | |
1107 | break; | |
1108 | } | |
1109 | } | |
1110 | ||
1111 | static int skip_spaces(char *ptr, int len) | |
1112 | { | |
1113 | int cnt, c; | |
1114 | ||
1115 | for (cnt = len; cnt > 0 && (c = *ptr++) && isspace(c); cnt--); | |
1116 | ||
1117 | return (len - cnt); | |
1118 | } | |
1119 | ||
1120 | static int get_int_arg(char *ptr, int len, u_long *pv) | |
1121 | { | |
1122 | char *end; | |
1123 | ||
1124 | *pv = simple_strtoul(ptr, &end, 10); | |
1125 | return (end - ptr); | |
1126 | } | |
1127 | ||
1128 | static int is_keyword(char *ptr, int len, char *verb) | |
1129 | { | |
1130 | int verb_len = strlen(verb); | |
1131 | ||
1132 | if (len >= verb_len && !memcmp(verb, ptr, verb_len)) | |
1133 | return verb_len; | |
1134 | else | |
1135 | return 0; | |
1136 | } | |
1137 | ||
1138 | #define SKIP_SPACES(ptr, len) \ | |
1139 | if ((arg_len = skip_spaces(ptr, len)) < 1) \ | |
1140 | return -EINVAL; \ | |
1141 | ptr += arg_len; len -= arg_len; | |
1142 | ||
1143 | #define GET_INT_ARG(ptr, len, v) \ | |
1144 | if (!(arg_len = get_int_arg(ptr, len, &(v)))) \ | |
1145 | return -EINVAL; \ | |
1146 | ptr += arg_len; len -= arg_len; | |
1147 | ||
1148 | ||
1149 | /* | |
1150 | * Parse a control command | |
1151 | */ | |
1152 | ||
1153 | static int sym_user_command(struct sym_hcb *np, char *buffer, int length) | |
1154 | { | |
1155 | char *ptr = buffer; | |
1156 | int len = length; | |
1157 | struct sym_usrcmd cmd, *uc = &cmd; | |
1158 | int arg_len; | |
1159 | u_long target; | |
1160 | ||
1161 | memset(uc, 0, sizeof(*uc)); | |
1162 | ||
1163 | if (len > 0 && ptr[len-1] == '\n') | |
1164 | --len; | |
1165 | ||
1166 | if ((arg_len = is_keyword(ptr, len, "setsync")) != 0) | |
1167 | uc->cmd = UC_SETSYNC; | |
1168 | else if ((arg_len = is_keyword(ptr, len, "settags")) != 0) | |
1169 | uc->cmd = UC_SETTAGS; | |
1170 | else if ((arg_len = is_keyword(ptr, len, "setverbose")) != 0) | |
1171 | uc->cmd = UC_SETVERBOSE; | |
1172 | else if ((arg_len = is_keyword(ptr, len, "setwide")) != 0) | |
1173 | uc->cmd = UC_SETWIDE; | |
1174 | #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT | |
1175 | else if ((arg_len = is_keyword(ptr, len, "setdebug")) != 0) | |
1176 | uc->cmd = UC_SETDEBUG; | |
1177 | #endif | |
1178 | else if ((arg_len = is_keyword(ptr, len, "setflag")) != 0) | |
1179 | uc->cmd = UC_SETFLAG; | |
1180 | else if ((arg_len = is_keyword(ptr, len, "resetdev")) != 0) | |
1181 | uc->cmd = UC_RESETDEV; | |
1182 | else if ((arg_len = is_keyword(ptr, len, "cleardev")) != 0) | |
1183 | uc->cmd = UC_CLEARDEV; | |
1184 | else | |
1185 | arg_len = 0; | |
1186 | ||
1187 | #ifdef DEBUG_PROC_INFO | |
1188 | printk("sym_user_command: arg_len=%d, cmd=%ld\n", arg_len, uc->cmd); | |
1189 | #endif | |
1190 | ||
1191 | if (!arg_len) | |
1192 | return -EINVAL; | |
1193 | ptr += arg_len; len -= arg_len; | |
1194 | ||
1195 | switch(uc->cmd) { | |
1196 | case UC_SETSYNC: | |
1197 | case UC_SETTAGS: | |
1198 | case UC_SETWIDE: | |
1199 | case UC_SETFLAG: | |
1200 | case UC_RESETDEV: | |
1201 | case UC_CLEARDEV: | |
1202 | SKIP_SPACES(ptr, len); | |
1203 | if ((arg_len = is_keyword(ptr, len, "all")) != 0) { | |
1204 | ptr += arg_len; len -= arg_len; | |
1205 | uc->target = ~0; | |
1206 | } else { | |
1207 | GET_INT_ARG(ptr, len, target); | |
1208 | uc->target = (1<<target); | |
1209 | #ifdef DEBUG_PROC_INFO | |
1210 | printk("sym_user_command: target=%ld\n", target); | |
1211 | #endif | |
1212 | } | |
1213 | break; | |
1214 | } | |
1215 | ||
1216 | switch(uc->cmd) { | |
1217 | case UC_SETVERBOSE: | |
1218 | case UC_SETSYNC: | |
1219 | case UC_SETTAGS: | |
1220 | case UC_SETWIDE: | |
1221 | SKIP_SPACES(ptr, len); | |
1222 | GET_INT_ARG(ptr, len, uc->data); | |
1223 | #ifdef DEBUG_PROC_INFO | |
1224 | printk("sym_user_command: data=%ld\n", uc->data); | |
1225 | #endif | |
1226 | break; | |
1227 | #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT | |
1228 | case UC_SETDEBUG: | |
1229 | while (len > 0) { | |
1230 | SKIP_SPACES(ptr, len); | |
1231 | if ((arg_len = is_keyword(ptr, len, "alloc"))) | |
1232 | uc->data |= DEBUG_ALLOC; | |
1233 | else if ((arg_len = is_keyword(ptr, len, "phase"))) | |
1234 | uc->data |= DEBUG_PHASE; | |
1235 | else if ((arg_len = is_keyword(ptr, len, "queue"))) | |
1236 | uc->data |= DEBUG_QUEUE; | |
1237 | else if ((arg_len = is_keyword(ptr, len, "result"))) | |
1238 | uc->data |= DEBUG_RESULT; | |
1239 | else if ((arg_len = is_keyword(ptr, len, "scatter"))) | |
1240 | uc->data |= DEBUG_SCATTER; | |
1241 | else if ((arg_len = is_keyword(ptr, len, "script"))) | |
1242 | uc->data |= DEBUG_SCRIPT; | |
1243 | else if ((arg_len = is_keyword(ptr, len, "tiny"))) | |
1244 | uc->data |= DEBUG_TINY; | |
1245 | else if ((arg_len = is_keyword(ptr, len, "timing"))) | |
1246 | uc->data |= DEBUG_TIMING; | |
1247 | else if ((arg_len = is_keyword(ptr, len, "nego"))) | |
1248 | uc->data |= DEBUG_NEGO; | |
1249 | else if ((arg_len = is_keyword(ptr, len, "tags"))) | |
1250 | uc->data |= DEBUG_TAGS; | |
1251 | else if ((arg_len = is_keyword(ptr, len, "pointer"))) | |
1252 | uc->data |= DEBUG_POINTER; | |
1253 | else | |
1254 | return -EINVAL; | |
1255 | ptr += arg_len; len -= arg_len; | |
1256 | } | |
1257 | #ifdef DEBUG_PROC_INFO | |
1258 | printk("sym_user_command: data=%ld\n", uc->data); | |
1259 | #endif | |
1260 | break; | |
1261 | #endif /* SYM_LINUX_DEBUG_CONTROL_SUPPORT */ | |
1262 | case UC_SETFLAG: | |
1263 | while (len > 0) { | |
1264 | SKIP_SPACES(ptr, len); | |
1265 | if ((arg_len = is_keyword(ptr, len, "no_disc"))) | |
1266 | uc->data &= ~SYM_DISC_ENABLED; | |
1267 | else | |
1268 | return -EINVAL; | |
1269 | ptr += arg_len; len -= arg_len; | |
1270 | } | |
1271 | break; | |
1272 | default: | |
1273 | break; | |
1274 | } | |
1275 | ||
1276 | if (len) | |
1277 | return -EINVAL; | |
1278 | else { | |
1279 | unsigned long flags; | |
1280 | ||
1281 | spin_lock_irqsave(np->s.host->host_lock, flags); | |
1282 | sym_exec_user_command (np, uc); | |
1283 | spin_unlock_irqrestore(np->s.host->host_lock, flags); | |
1284 | } | |
1285 | return length; | |
1286 | } | |
1287 | ||
1288 | #endif /* SYM_LINUX_USER_COMMAND_SUPPORT */ | |
1289 | ||
1290 | ||
1291 | #ifdef SYM_LINUX_USER_INFO_SUPPORT | |
1292 | /* | |
1293 | * Informations through the proc file system. | |
1294 | */ | |
1295 | struct info_str { | |
1296 | char *buffer; | |
1297 | int length; | |
1298 | int offset; | |
1299 | int pos; | |
1300 | }; | |
1301 | ||
1302 | static void copy_mem_info(struct info_str *info, char *data, int len) | |
1303 | { | |
1304 | if (info->pos + len > info->length) | |
1305 | len = info->length - info->pos; | |
1306 | ||
1307 | if (info->pos + len < info->offset) { | |
1308 | info->pos += len; | |
1309 | return; | |
1310 | } | |
1311 | if (info->pos < info->offset) { | |
1312 | data += (info->offset - info->pos); | |
1313 | len -= (info->offset - info->pos); | |
1314 | } | |
1315 | ||
1316 | if (len > 0) { | |
1317 | memcpy(info->buffer + info->pos, data, len); | |
1318 | info->pos += len; | |
1319 | } | |
1320 | } | |
1321 | ||
1322 | static int copy_info(struct info_str *info, char *fmt, ...) | |
1323 | { | |
1324 | va_list args; | |
1325 | char buf[81]; | |
1326 | int len; | |
1327 | ||
1328 | va_start(args, fmt); | |
1329 | len = vsprintf(buf, fmt, args); | |
1330 | va_end(args); | |
1331 | ||
1332 | copy_mem_info(info, buf, len); | |
1333 | return len; | |
1334 | } | |
1335 | ||
1336 | /* | |
1337 | * Copy formatted information into the input buffer. | |
1338 | */ | |
1339 | static int sym_host_info(struct sym_hcb *np, char *ptr, off_t offset, int len) | |
1340 | { | |
1341 | struct info_str info; | |
1342 | ||
1343 | info.buffer = ptr; | |
1344 | info.length = len; | |
1345 | info.offset = offset; | |
1346 | info.pos = 0; | |
1347 | ||
1348 | copy_info(&info, "Chip " NAME53C "%s, device id 0x%x, " | |
1349 | "revision id 0x%x\n", | |
1350 | np->s.chip_name, np->device_id, np->revision_id); | |
1351 | copy_info(&info, "At PCI address %s, IRQ " IRQ_FMT "\n", | |
1352 | pci_name(np->s.device), IRQ_PRM(np->s.irq)); | |
1353 | copy_info(&info, "Min. period factor %d, %s SCSI BUS%s\n", | |
1354 | (int) (np->minsync_dt ? np->minsync_dt : np->minsync), | |
1355 | np->maxwide ? "Wide" : "Narrow", | |
1356 | np->minsync_dt ? ", DT capable" : ""); | |
1357 | ||
1358 | copy_info(&info, "Max. started commands %d, " | |
1359 | "max. commands per LUN %d\n", | |
1360 | SYM_CONF_MAX_START, SYM_CONF_MAX_TAG); | |
1361 | ||
1362 | return info.pos > info.offset? info.pos - info.offset : 0; | |
1363 | } | |
1364 | #endif /* SYM_LINUX_USER_INFO_SUPPORT */ | |
1365 | ||
1366 | /* | |
1367 | * Entry point of the scsi proc fs of the driver. | |
1368 | * - func = 0 means read (returns adapter infos) | |
1369 | * - func = 1 means write (not yet merget from sym53c8xx) | |
1370 | */ | |
1371 | static int sym53c8xx_proc_info(struct Scsi_Host *host, char *buffer, | |
1372 | char **start, off_t offset, int length, int func) | |
1373 | { | |
1374 | struct sym_hcb *np = sym_get_hcb(host); | |
1375 | int retv; | |
1376 | ||
1377 | if (func) { | |
1378 | #ifdef SYM_LINUX_USER_COMMAND_SUPPORT | |
1379 | retv = sym_user_command(np, buffer, length); | |
1380 | #else | |
1381 | retv = -EINVAL; | |
1382 | #endif | |
1383 | } else { | |
1384 | if (start) | |
1385 | *start = buffer; | |
1386 | #ifdef SYM_LINUX_USER_INFO_SUPPORT | |
1387 | retv = sym_host_info(np, buffer, offset, length); | |
1388 | #else | |
1389 | retv = -EINVAL; | |
1390 | #endif | |
1391 | } | |
1392 | ||
1393 | return retv; | |
1394 | } | |
1395 | #endif /* SYM_LINUX_PROC_INFO_SUPPORT */ | |
1396 | ||
1397 | /* | |
1398 | * Free controller resources. | |
1399 | */ | |
1400 | static void sym_free_resources(struct sym_hcb *np, struct pci_dev *pdev) | |
1401 | { | |
1402 | /* | |
1403 | * Free O/S specific resources. | |
1404 | */ | |
1405 | if (np->s.irq) | |
1406 | free_irq(np->s.irq, np); | |
1407 | if (np->s.ioaddr) | |
1408 | pci_iounmap(pdev, np->s.ioaddr); | |
1409 | if (np->s.ramaddr) | |
1410 | pci_iounmap(pdev, np->s.ramaddr); | |
1411 | /* | |
1412 | * Free O/S independent resources. | |
1413 | */ | |
1414 | sym_hcb_free(np); | |
1415 | ||
1416 | sym_mfree_dma(np, sizeof(*np), "HCB"); | |
1417 | } | |
1418 | ||
1419 | /* | |
1420 | * Ask/tell the system about DMA addressing. | |
1421 | */ | |
1422 | static int sym_setup_bus_dma_mask(struct sym_hcb *np) | |
1423 | { | |
1424 | #if SYM_CONF_DMA_ADDRESSING_MODE > 0 | |
1425 | #if SYM_CONF_DMA_ADDRESSING_MODE == 1 | |
1e8eb21e | 1426 | #define DMA_DAC_MASK DMA_40BIT_MASK |
1da177e4 LT |
1427 | #elif SYM_CONF_DMA_ADDRESSING_MODE == 2 |
1428 | #define DMA_DAC_MASK DMA_64BIT_MASK | |
1429 | #endif | |
1430 | if ((np->features & FE_DAC) && | |
1431 | !pci_set_dma_mask(np->s.device, DMA_DAC_MASK)) { | |
1432 | np->use_dac = 1; | |
1433 | return 0; | |
1434 | } | |
1435 | #endif | |
1436 | ||
1437 | if (!pci_set_dma_mask(np->s.device, DMA_32BIT_MASK)) | |
1438 | return 0; | |
1439 | ||
1440 | printf_warning("%s: No suitable DMA available\n", sym_name(np)); | |
1441 | return -1; | |
1442 | } | |
1443 | ||
1444 | /* | |
1445 | * Host attach and initialisations. | |
1446 | * | |
1447 | * Allocate host data and ncb structure. | |
1448 | * Remap MMIO region. | |
1449 | * Do chip initialization. | |
1450 | * If all is OK, install interrupt handling and | |
1451 | * start the timer daemon. | |
1452 | */ | |
1453 | static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt, | |
1454 | int unit, struct sym_device *dev) | |
1455 | { | |
1456 | struct host_data *host_data; | |
1457 | struct sym_hcb *np = NULL; | |
1458 | struct Scsi_Host *instance = NULL; | |
1459 | struct pci_dev *pdev = dev->pdev; | |
1460 | unsigned long flags; | |
1461 | struct sym_fw *fw; | |
1462 | ||
1463 | printk(KERN_INFO | |
1464 | "sym%d: <%s> rev 0x%x at pci %s irq " IRQ_FMT "\n", | |
1465 | unit, dev->chip.name, dev->chip.revision_id, | |
1466 | pci_name(pdev), IRQ_PRM(pdev->irq)); | |
1467 | ||
1468 | /* | |
1469 | * Get the firmware for this chip. | |
1470 | */ | |
1471 | fw = sym_find_firmware(&dev->chip); | |
1472 | if (!fw) | |
1473 | goto attach_failed; | |
1474 | ||
1475 | /* | |
1476 | * Allocate host_data structure | |
1477 | */ | |
1478 | instance = scsi_host_alloc(tpnt, sizeof(*host_data)); | |
1479 | if (!instance) | |
1480 | goto attach_failed; | |
1481 | host_data = (struct host_data *) instance->hostdata; | |
1482 | ||
1483 | /* | |
1484 | * Allocate immediately the host control block, | |
1485 | * since we are only expecting to succeed. :) | |
1486 | * We keep track in the HCB of all the resources that | |
1487 | * are to be released on error. | |
1488 | */ | |
1489 | np = __sym_calloc_dma(&pdev->dev, sizeof(*np), "HCB"); | |
1490 | if (!np) | |
1491 | goto attach_failed; | |
1492 | np->s.device = pdev; | |
1493 | np->bus_dmat = &pdev->dev; /* Result in 1 DMA pool per HBA */ | |
1494 | host_data->ncb = np; | |
1495 | np->s.host = instance; | |
1496 | ||
1497 | pci_set_drvdata(pdev, np); | |
1498 | ||
1499 | /* | |
1500 | * Copy some useful infos to the HCB. | |
1501 | */ | |
1502 | np->hcb_ba = vtobus(np); | |
1503 | np->verbose = sym_driver_setup.verbose; | |
1504 | np->s.device = pdev; | |
1505 | np->s.unit = unit; | |
1506 | np->device_id = dev->chip.device_id; | |
1507 | np->revision_id = dev->chip.revision_id; | |
1508 | np->features = dev->chip.features; | |
1509 | np->clock_divn = dev->chip.nr_divisor; | |
1510 | np->maxoffs = dev->chip.offset_max; | |
1511 | np->maxburst = dev->chip.burst_max; | |
1512 | np->myaddr = dev->host_id; | |
1513 | ||
1514 | /* | |
1515 | * Edit its name. | |
1516 | */ | |
1517 | strlcpy(np->s.chip_name, dev->chip.name, sizeof(np->s.chip_name)); | |
1518 | sprintf(np->s.inst_name, "sym%d", np->s.unit); | |
1519 | ||
1520 | if (sym_setup_bus_dma_mask(np)) | |
1521 | goto attach_failed; | |
1522 | ||
1523 | /* | |
1524 | * Try to map the controller chip to | |
1525 | * virtual and physical memory. | |
1526 | */ | |
1527 | np->mmio_ba = (u32)dev->mmio_base; | |
1528 | np->s.ioaddr = dev->s.ioaddr; | |
1529 | np->s.ramaddr = dev->s.ramaddr; | |
1530 | np->s.io_ws = (np->features & FE_IO256) ? 256 : 128; | |
1531 | ||
1532 | /* | |
1533 | * Map on-chip RAM if present and supported. | |
1534 | */ | |
1535 | if (!(np->features & FE_RAM)) | |
1536 | dev->ram_base = 0; | |
1537 | if (dev->ram_base) { | |
1538 | np->ram_ba = (u32)dev->ram_base; | |
1539 | np->ram_ws = (np->features & FE_RAM8K) ? 8192 : 4096; | |
1540 | } | |
1541 | ||
1542 | if (sym_hcb_attach(instance, fw, dev->nvram)) | |
1543 | goto attach_failed; | |
1544 | ||
1545 | /* | |
1546 | * Install the interrupt handler. | |
1547 | * If we synchonize the C code with SCRIPTS on interrupt, | |
1548 | * we do not want to share the INTR line at all. | |
1549 | */ | |
1550 | if (request_irq(pdev->irq, sym53c8xx_intr, SA_SHIRQ, NAME53C8XX, np)) { | |
1551 | printf_err("%s: request irq %d failure\n", | |
1552 | sym_name(np), pdev->irq); | |
1553 | goto attach_failed; | |
1554 | } | |
1555 | np->s.irq = pdev->irq; | |
1556 | ||
1557 | /* | |
1558 | * After SCSI devices have been opened, we cannot | |
1559 | * reset the bus safely, so we do it here. | |
1560 | */ | |
1561 | spin_lock_irqsave(instance->host_lock, flags); | |
1562 | if (sym_reset_scsi_bus(np, 0)) | |
1563 | goto reset_failed; | |
1564 | ||
1565 | /* | |
1566 | * Start the SCRIPTS. | |
1567 | */ | |
1568 | sym_start_up (np, 1); | |
1569 | ||
1570 | /* | |
1571 | * Start the timer daemon | |
1572 | */ | |
1573 | init_timer(&np->s.timer); | |
1574 | np->s.timer.data = (unsigned long) np; | |
1575 | np->s.timer.function = sym53c8xx_timer; | |
1576 | np->s.lasttime=0; | |
1577 | sym_timer (np); | |
1578 | ||
1579 | /* | |
1580 | * Fill Linux host instance structure | |
1581 | * and return success. | |
1582 | */ | |
1583 | instance->max_channel = 0; | |
1584 | instance->this_id = np->myaddr; | |
1585 | instance->max_id = np->maxwide ? 16 : 8; | |
1586 | instance->max_lun = SYM_CONF_MAX_LUN; | |
1587 | instance->unique_id = pci_resource_start(pdev, 0); | |
1588 | instance->cmd_per_lun = SYM_CONF_MAX_TAG; | |
1589 | instance->can_queue = (SYM_CONF_MAX_START-2); | |
1590 | instance->sg_tablesize = SYM_CONF_MAX_SG; | |
1591 | instance->max_cmd_len = 16; | |
1592 | BUG_ON(sym2_transport_template == NULL); | |
1593 | instance->transportt = sym2_transport_template; | |
1594 | ||
1595 | spin_unlock_irqrestore(instance->host_lock, flags); | |
1596 | ||
1597 | return instance; | |
1598 | ||
1599 | reset_failed: | |
1600 | printf_err("%s: FATAL ERROR: CHECK SCSI BUS - CABLES, " | |
1601 | "TERMINATION, DEVICE POWER etc.!\n", sym_name(np)); | |
1602 | spin_unlock_irqrestore(instance->host_lock, flags); | |
1603 | attach_failed: | |
1604 | if (!instance) | |
1605 | return NULL; | |
1606 | printf_info("%s: giving up ...\n", sym_name(np)); | |
1607 | if (np) | |
1608 | sym_free_resources(np, pdev); | |
1609 | scsi_host_put(instance); | |
1610 | ||
1611 | return NULL; | |
1612 | } | |
1613 | ||
1614 | ||
1615 | /* | |
1616 | * Detect and try to read SYMBIOS and TEKRAM NVRAM. | |
1617 | */ | |
1618 | #if SYM_CONF_NVRAM_SUPPORT | |
1619 | static void __devinit sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) | |
1620 | { | |
1621 | devp->nvram = nvp; | |
1622 | devp->device_id = devp->chip.device_id; | |
1623 | nvp->type = 0; | |
1624 | ||
1625 | sym_read_nvram(devp, nvp); | |
1626 | } | |
1627 | #else | |
1628 | static inline void sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) | |
1629 | { | |
1630 | } | |
1631 | #endif /* SYM_CONF_NVRAM_SUPPORT */ | |
1632 | ||
1633 | static int __devinit sym_check_supported(struct sym_device *device) | |
1634 | { | |
1635 | struct sym_chip *chip; | |
1636 | struct pci_dev *pdev = device->pdev; | |
1637 | u_char revision; | |
1638 | unsigned long io_port = pci_resource_start(pdev, 0); | |
1639 | int i; | |
1640 | ||
1641 | /* | |
1642 | * If user excluded this chip, do not initialize it. | |
1643 | * I hate this code so much. Must kill it. | |
1644 | */ | |
1645 | if (io_port) { | |
1646 | for (i = 0 ; i < 8 ; i++) { | |
1647 | if (sym_driver_setup.excludes[i] == io_port) | |
1648 | return -ENODEV; | |
1649 | } | |
1650 | } | |
1651 | ||
1652 | /* | |
1653 | * Check if the chip is supported. Then copy the chip description | |
1654 | * to our device structure so we can make it match the actual device | |
1655 | * and options. | |
1656 | */ | |
1657 | pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision); | |
1658 | chip = sym_lookup_chip_table(pdev->device, revision); | |
1659 | if (!chip) { | |
1660 | dev_info(&pdev->dev, "device not supported\n"); | |
1661 | return -ENODEV; | |
1662 | } | |
1663 | memcpy(&device->chip, chip, sizeof(device->chip)); | |
1664 | device->chip.revision_id = revision; | |
1665 | ||
1666 | return 0; | |
1667 | } | |
1668 | ||
1669 | /* | |
1670 | * Ignore Symbios chips controlled by various RAID controllers. | |
1671 | * These controllers set value 0x52414944 at RAM end - 16. | |
1672 | */ | |
1673 | static int __devinit sym_check_raid(struct sym_device *device) | |
1674 | { | |
1675 | unsigned int ram_size, ram_val; | |
1676 | ||
1677 | if (!device->s.ramaddr) | |
1678 | return 0; | |
1679 | ||
1680 | if (device->chip.features & FE_RAM8K) | |
1681 | ram_size = 8192; | |
1682 | else | |
1683 | ram_size = 4096; | |
1684 | ||
1685 | ram_val = readl(device->s.ramaddr + ram_size - 16); | |
1686 | if (ram_val != 0x52414944) | |
1687 | return 0; | |
1688 | ||
1689 | dev_info(&device->pdev->dev, | |
1690 | "not initializing, driven by RAID controller.\n"); | |
1691 | return -ENODEV; | |
1692 | } | |
1693 | ||
1694 | static int __devinit sym_set_workarounds(struct sym_device *device) | |
1695 | { | |
1696 | struct sym_chip *chip = &device->chip; | |
1697 | struct pci_dev *pdev = device->pdev; | |
1698 | u_short status_reg; | |
1699 | ||
1700 | /* | |
1701 | * (ITEM 12 of a DEL about the 896 I haven't yet). | |
1702 | * We must ensure the chip will use WRITE AND INVALIDATE. | |
1703 | * The revision number limit is for now arbitrary. | |
1704 | */ | |
1705 | if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && chip->revision_id < 0x4) { | |
1706 | chip->features |= (FE_WRIE | FE_CLSE); | |
1707 | } | |
1708 | ||
1709 | /* If the chip can do Memory Write Invalidate, enable it */ | |
1710 | if (chip->features & FE_WRIE) { | |
1711 | if (pci_set_mwi(pdev)) | |
1712 | return -ENODEV; | |
1713 | } | |
1714 | ||
1715 | /* | |
1716 | * Work around for errant bit in 895A. The 66Mhz | |
1717 | * capable bit is set erroneously. Clear this bit. | |
1718 | * (Item 1 DEL 533) | |
1719 | * | |
1720 | * Make sure Config space and Features agree. | |
1721 | * | |
1722 | * Recall: writes are not normal to status register - | |
1723 | * write a 1 to clear and a 0 to leave unchanged. | |
1724 | * Can only reset bits. | |
1725 | */ | |
1726 | pci_read_config_word(pdev, PCI_STATUS, &status_reg); | |
1727 | if (chip->features & FE_66MHZ) { | |
1728 | if (!(status_reg & PCI_STATUS_66MHZ)) | |
1729 | chip->features &= ~FE_66MHZ; | |
1730 | } else { | |
1731 | if (status_reg & PCI_STATUS_66MHZ) { | |
1732 | status_reg = PCI_STATUS_66MHZ; | |
1733 | pci_write_config_word(pdev, PCI_STATUS, status_reg); | |
1734 | pci_read_config_word(pdev, PCI_STATUS, &status_reg); | |
1735 | } | |
1736 | } | |
1737 | ||
1738 | return 0; | |
1739 | } | |
1740 | ||
1741 | /* | |
1742 | * Read and check the PCI configuration for any detected NCR | |
1743 | * boards and save data for attaching after all boards have | |
1744 | * been detected. | |
1745 | */ | |
1746 | static void __devinit | |
1747 | sym_init_device(struct pci_dev *pdev, struct sym_device *device) | |
1748 | { | |
b6d105d7 MW |
1749 | int i = 2; |
1750 | struct pci_bus_region bus_addr; | |
1da177e4 LT |
1751 | |
1752 | device->host_id = SYM_SETUP_HOST_ID; | |
1753 | device->pdev = pdev; | |
1754 | ||
b6d105d7 MW |
1755 | pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[1]); |
1756 | device->mmio_base = bus_addr.start; | |
1757 | ||
1758 | /* | |
1759 | * If the BAR is 64-bit, resource 2 will be occupied by the | |
1760 | * upper 32 bits | |
1761 | */ | |
1762 | if (!pdev->resource[i].flags) | |
1763 | i++; | |
1764 | pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[i]); | |
1765 | device->ram_base = bus_addr.start; | |
1da177e4 | 1766 | |
1f61d824 | 1767 | #ifdef CONFIG_SCSI_SYM53C8XX_MMIO |
1da177e4 LT |
1768 | if (device->mmio_base) |
1769 | device->s.ioaddr = pci_iomap(pdev, 1, | |
1770 | pci_resource_len(pdev, 1)); | |
1771 | #endif | |
1772 | if (!device->s.ioaddr) | |
1773 | device->s.ioaddr = pci_iomap(pdev, 0, | |
1774 | pci_resource_len(pdev, 0)); | |
1775 | if (device->ram_base) | |
1776 | device->s.ramaddr = pci_iomap(pdev, i, | |
1777 | pci_resource_len(pdev, i)); | |
1778 | } | |
1779 | ||
1780 | /* | |
1781 | * The NCR PQS and PDS cards are constructed as a DEC bridge | |
1782 | * behind which sits a proprietary NCR memory controller and | |
1783 | * either four or two 53c875s as separate devices. We can tell | |
1784 | * if an 875 is part of a PQS/PDS or not since if it is, it will | |
1785 | * be on the same bus as the memory controller. In its usual | |
1786 | * mode of operation, the 875s are slaved to the memory | |
1787 | * controller for all transfers. To operate with the Linux | |
1788 | * driver, the memory controller is disabled and the 875s | |
1789 | * freed to function independently. The only wrinkle is that | |
1790 | * the preset SCSI ID (which may be zero) must be read in from | |
1791 | * a special configuration space register of the 875. | |
1792 | */ | |
1793 | static void sym_config_pqs(struct pci_dev *pdev, struct sym_device *sym_dev) | |
1794 | { | |
1795 | int slot; | |
1796 | u8 tmp; | |
1797 | ||
1798 | for (slot = 0; slot < 256; slot++) { | |
1799 | struct pci_dev *memc = pci_get_slot(pdev->bus, slot); | |
1800 | ||
1801 | if (!memc || memc->vendor != 0x101a || memc->device == 0x0009) { | |
1802 | pci_dev_put(memc); | |
1803 | continue; | |
1804 | } | |
1805 | ||
1806 | /* bit 1: allow individual 875 configuration */ | |
1807 | pci_read_config_byte(memc, 0x44, &tmp); | |
1808 | if ((tmp & 0x2) == 0) { | |
1809 | tmp |= 0x2; | |
1810 | pci_write_config_byte(memc, 0x44, tmp); | |
1811 | } | |
1812 | ||
1813 | /* bit 2: drive individual 875 interrupts to the bus */ | |
1814 | pci_read_config_byte(memc, 0x45, &tmp); | |
1815 | if ((tmp & 0x4) == 0) { | |
1816 | tmp |= 0x4; | |
1817 | pci_write_config_byte(memc, 0x45, tmp); | |
1818 | } | |
1819 | ||
1820 | pci_dev_put(memc); | |
1821 | break; | |
1822 | } | |
1823 | ||
1824 | pci_read_config_byte(pdev, 0x84, &tmp); | |
1825 | sym_dev->host_id = tmp; | |
1826 | } | |
1827 | ||
1828 | /* | |
1829 | * Called before unloading the module. | |
1830 | * Detach the host. | |
1831 | * We have to free resources and halt the NCR chip. | |
1832 | */ | |
1833 | static int sym_detach(struct sym_hcb *np, struct pci_dev *pdev) | |
1834 | { | |
1835 | printk("%s: detaching ...\n", sym_name(np)); | |
1836 | ||
1837 | del_timer_sync(&np->s.timer); | |
1838 | ||
1839 | /* | |
1840 | * Reset NCR chip. | |
1841 | * We should use sym_soft_reset(), but we don't want to do | |
1842 | * so, since we may not be safe if interrupts occur. | |
1843 | */ | |
1844 | printk("%s: resetting chip\n", sym_name(np)); | |
1845 | OUTB(np, nc_istat, SRST); | |
53222b90 | 1846 | INB(np, nc_mbox1); |
1da177e4 LT |
1847 | udelay(10); |
1848 | OUTB(np, nc_istat, 0); | |
1849 | ||
1850 | sym_free_resources(np, pdev); | |
1851 | ||
1852 | return 1; | |
1853 | } | |
1854 | ||
1855 | /* | |
1856 | * Driver host template. | |
1857 | */ | |
1858 | static struct scsi_host_template sym2_template = { | |
1859 | .module = THIS_MODULE, | |
1860 | .name = "sym53c8xx", | |
1861 | .info = sym53c8xx_info, | |
1862 | .queuecommand = sym53c8xx_queue_command, | |
1863 | .slave_alloc = sym53c8xx_slave_alloc, | |
1864 | .slave_configure = sym53c8xx_slave_configure, | |
84e203a2 | 1865 | .slave_destroy = sym53c8xx_slave_destroy, |
1da177e4 LT |
1866 | .eh_abort_handler = sym53c8xx_eh_abort_handler, |
1867 | .eh_device_reset_handler = sym53c8xx_eh_device_reset_handler, | |
1868 | .eh_bus_reset_handler = sym53c8xx_eh_bus_reset_handler, | |
1869 | .eh_host_reset_handler = sym53c8xx_eh_host_reset_handler, | |
1870 | .this_id = 7, | |
14ac8bf5 MW |
1871 | .use_clustering = ENABLE_CLUSTERING, |
1872 | .max_sectors = 0xFFFF, | |
1da177e4 LT |
1873 | #ifdef SYM_LINUX_PROC_INFO_SUPPORT |
1874 | .proc_info = sym53c8xx_proc_info, | |
1875 | .proc_name = NAME53C8XX, | |
1876 | #endif | |
1877 | }; | |
1878 | ||
1879 | static int attach_count; | |
1880 | ||
1881 | static int __devinit sym2_probe(struct pci_dev *pdev, | |
1882 | const struct pci_device_id *ent) | |
1883 | { | |
1884 | struct sym_device sym_dev; | |
1885 | struct sym_nvram nvram; | |
1886 | struct Scsi_Host *instance; | |
1887 | ||
1888 | memset(&sym_dev, 0, sizeof(sym_dev)); | |
1889 | memset(&nvram, 0, sizeof(nvram)); | |
1890 | ||
1891 | if (pci_enable_device(pdev)) | |
1892 | goto leave; | |
1893 | ||
1894 | pci_set_master(pdev); | |
1895 | ||
1896 | if (pci_request_regions(pdev, NAME53C8XX)) | |
1897 | goto disable; | |
1898 | ||
1899 | sym_init_device(pdev, &sym_dev); | |
1900 | if (sym_check_supported(&sym_dev)) | |
1901 | goto free; | |
1902 | ||
1903 | if (sym_check_raid(&sym_dev)) | |
1904 | goto leave; /* Don't disable the device */ | |
1905 | ||
1906 | if (sym_set_workarounds(&sym_dev)) | |
1907 | goto free; | |
1908 | ||
1909 | sym_config_pqs(pdev, &sym_dev); | |
1910 | ||
1911 | sym_get_nvram(&sym_dev, &nvram); | |
1912 | ||
1913 | instance = sym_attach(&sym2_template, attach_count, &sym_dev); | |
1914 | if (!instance) | |
1915 | goto free; | |
1916 | ||
1917 | if (scsi_add_host(instance, &pdev->dev)) | |
1918 | goto detach; | |
1919 | scsi_scan_host(instance); | |
1920 | ||
1921 | attach_count++; | |
1922 | ||
1923 | return 0; | |
1924 | ||
1925 | detach: | |
1926 | sym_detach(pci_get_drvdata(pdev), pdev); | |
1927 | free: | |
1928 | pci_release_regions(pdev); | |
1929 | disable: | |
1930 | pci_disable_device(pdev); | |
1931 | leave: | |
1932 | return -ENODEV; | |
1933 | } | |
1934 | ||
1935 | static void __devexit sym2_remove(struct pci_dev *pdev) | |
1936 | { | |
1937 | struct sym_hcb *np = pci_get_drvdata(pdev); | |
1938 | struct Scsi_Host *host = np->s.host; | |
1939 | ||
1940 | scsi_remove_host(host); | |
1941 | scsi_host_put(host); | |
1942 | ||
1943 | sym_detach(np, pdev); | |
1944 | ||
1945 | pci_release_regions(pdev); | |
1946 | pci_disable_device(pdev); | |
1947 | ||
1948 | attach_count--; | |
1949 | } | |
1950 | ||
1951 | static void sym2_get_signalling(struct Scsi_Host *shost) | |
1952 | { | |
1953 | struct sym_hcb *np = sym_get_hcb(shost); | |
1954 | enum spi_signal_type type; | |
1955 | ||
1956 | switch (np->scsi_mode) { | |
1957 | case SMODE_SE: | |
1958 | type = SPI_SIGNAL_SE; | |
1959 | break; | |
1960 | case SMODE_LVD: | |
1961 | type = SPI_SIGNAL_LVD; | |
1962 | break; | |
1963 | case SMODE_HVD: | |
1964 | type = SPI_SIGNAL_HVD; | |
1965 | break; | |
1966 | default: | |
1967 | type = SPI_SIGNAL_UNKNOWN; | |
1968 | break; | |
1969 | } | |
1970 | spi_signalling(shost) = type; | |
1971 | } | |
1972 | ||
1973 | static void sym2_set_offset(struct scsi_target *starget, int offset) | |
1974 | { | |
1975 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1976 | struct sym_hcb *np = sym_get_hcb(shost); | |
1977 | struct sym_tcb *tp = &np->target[starget->id]; | |
1978 | ||
1979 | tp->tgoal.offset = offset; | |
1980 | tp->tgoal.check_nego = 1; | |
1981 | } | |
1982 | ||
1983 | static void sym2_set_period(struct scsi_target *starget, int period) | |
1984 | { | |
1985 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
1986 | struct sym_hcb *np = sym_get_hcb(shost); | |
1987 | struct sym_tcb *tp = &np->target[starget->id]; | |
1988 | ||
e4862fed JB |
1989 | /* have to have DT for these transfers, but DT will also |
1990 | * set width, so check that this is allowed */ | |
1991 | if (period <= np->minsync && spi_width(starget)) | |
1da177e4 LT |
1992 | tp->tgoal.dt = 1; |
1993 | ||
1994 | tp->tgoal.period = period; | |
1995 | tp->tgoal.check_nego = 1; | |
1996 | } | |
1997 | ||
1998 | static void sym2_set_width(struct scsi_target *starget, int width) | |
1999 | { | |
2000 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
2001 | struct sym_hcb *np = sym_get_hcb(shost); | |
2002 | struct sym_tcb *tp = &np->target[starget->id]; | |
2003 | ||
2004 | /* It is illegal to have DT set on narrow transfers. If DT is | |
2005 | * clear, we must also clear IU and QAS. */ | |
2006 | if (width == 0) | |
2007 | tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0; | |
2008 | ||
2009 | tp->tgoal.width = width; | |
2010 | tp->tgoal.check_nego = 1; | |
2011 | } | |
2012 | ||
2013 | static void sym2_set_dt(struct scsi_target *starget, int dt) | |
2014 | { | |
2015 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
2016 | struct sym_hcb *np = sym_get_hcb(shost); | |
2017 | struct sym_tcb *tp = &np->target[starget->id]; | |
2018 | ||
2019 | /* We must clear QAS and IU if DT is clear */ | |
2020 | if (dt) | |
2021 | tp->tgoal.dt = 1; | |
2022 | else | |
2023 | tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0; | |
2024 | tp->tgoal.check_nego = 1; | |
2025 | } | |
2026 | ||
8b2f8138 | 2027 | #if 0 |
1da177e4 LT |
2028 | static void sym2_set_iu(struct scsi_target *starget, int iu) |
2029 | { | |
2030 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
2031 | struct sym_hcb *np = sym_get_hcb(shost); | |
2032 | struct sym_tcb *tp = &np->target[starget->id]; | |
2033 | ||
2034 | if (iu) | |
2035 | tp->tgoal.iu = tp->tgoal.dt = 1; | |
2036 | else | |
2037 | tp->tgoal.iu = 0; | |
2038 | tp->tgoal.check_nego = 1; | |
2039 | } | |
2040 | ||
2041 | static void sym2_set_qas(struct scsi_target *starget, int qas) | |
2042 | { | |
2043 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
2044 | struct sym_hcb *np = sym_get_hcb(shost); | |
2045 | struct sym_tcb *tp = &np->target[starget->id]; | |
2046 | ||
2047 | if (qas) | |
2048 | tp->tgoal.dt = tp->tgoal.qas = 1; | |
2049 | else | |
2050 | tp->tgoal.qas = 0; | |
2051 | tp->tgoal.check_nego = 1; | |
2052 | } | |
8b2f8138 | 2053 | #endif |
1da177e4 LT |
2054 | |
2055 | static struct spi_function_template sym2_transport_functions = { | |
2056 | .set_offset = sym2_set_offset, | |
2057 | .show_offset = 1, | |
2058 | .set_period = sym2_set_period, | |
2059 | .show_period = 1, | |
2060 | .set_width = sym2_set_width, | |
2061 | .show_width = 1, | |
2062 | .set_dt = sym2_set_dt, | |
2063 | .show_dt = 1, | |
8b2f8138 | 2064 | #if 0 |
1da177e4 LT |
2065 | .set_iu = sym2_set_iu, |
2066 | .show_iu = 1, | |
2067 | .set_qas = sym2_set_qas, | |
2068 | .show_qas = 1, | |
8b2f8138 | 2069 | #endif |
1da177e4 LT |
2070 | .get_signalling = sym2_get_signalling, |
2071 | }; | |
2072 | ||
2073 | static struct pci_device_id sym2_id_table[] __devinitdata = { | |
2074 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C810, | |
2075 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2076 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C820, | |
2077 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */ | |
2078 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C825, | |
2079 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2080 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C815, | |
2081 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2082 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C810AP, | |
2083 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */ | |
2084 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C860, | |
2085 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2086 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1510, | |
2087 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2088 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C896, | |
2089 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2090 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C895, | |
2091 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2092 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C885, | |
2093 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2094 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875, | |
2095 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2096 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C1510, | |
2097 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */ | |
2098 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C895A, | |
2099 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2100 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C875A, | |
2101 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2102 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_33, | |
2103 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2104 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_66, | |
2105 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2106 | { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875J, | |
2107 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, | |
2108 | { 0, } | |
2109 | }; | |
2110 | ||
2111 | MODULE_DEVICE_TABLE(pci, sym2_id_table); | |
2112 | ||
2113 | static struct pci_driver sym2_driver = { | |
2114 | .name = NAME53C8XX, | |
2115 | .id_table = sym2_id_table, | |
2116 | .probe = sym2_probe, | |
2117 | .remove = __devexit_p(sym2_remove), | |
2118 | }; | |
2119 | ||
2120 | static int __init sym2_init(void) | |
2121 | { | |
2122 | int error; | |
2123 | ||
2124 | sym2_setup_params(); | |
2125 | sym2_transport_template = spi_attach_transport(&sym2_transport_functions); | |
2126 | if (!sym2_transport_template) | |
2127 | return -ENODEV; | |
2128 | ||
2129 | error = pci_register_driver(&sym2_driver); | |
2130 | if (error) | |
2131 | spi_release_transport(sym2_transport_template); | |
2132 | return error; | |
2133 | } | |
2134 | ||
2135 | static void __exit sym2_exit(void) | |
2136 | { | |
2137 | pci_unregister_driver(&sym2_driver); | |
2138 | spi_release_transport(sym2_transport_template); | |
2139 | } | |
2140 | ||
2141 | module_init(sym2_init); | |
2142 | module_exit(sym2_exit); |