tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* gdth_proc.c
2 * $Id: gdth_proc.c,v 1.43 2006/01/11 16:15:00 achim Exp $
3 */
4
5#include <linux/completion.h>
6
7int gdth_proc_info(struct Scsi_Host *host, char *buffer,char **start,off_t offset,int length,
8 int inout)
9{
10 gdth_ha_str *ha = shost_priv(host);
11
12 TRACE2(("gdth_proc_info() length %d offs %d inout %d\n",
13 length,(int)offset,inout));
14
15 if (inout)
16 return(gdth_set_info(buffer,length,host,ha));
17 else
18 return(gdth_get_info(buffer,start,offset,length,host,ha));
19}
20
21static int gdth_set_info(char *buffer,int length,struct Scsi_Host *host,
22 gdth_ha_str *ha)
23{
24 int ret_val = -EINVAL;
25
26 TRACE2(("gdth_set_info() ha %d\n",ha->hanum,));
27
28 if (length >= 4) {
29 if (strncmp(buffer,"gdth",4) == 0) {
30 buffer += 5;
31 length -= 5;
32 ret_val = gdth_set_asc_info(host, buffer, length, ha);
33 }
34 }
35
36 return ret_val;
37}
38
39static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer,
40 int length, gdth_ha_str *ha)
41{
42 int orig_length, drive, wb_mode;
43 int i, found;
44 gdth_cmd_str gdtcmd;
45 gdth_cpar_str *pcpar;
46 ulong64 paddr;
47
48 char cmnd[MAX_COMMAND_SIZE];
49 memset(cmnd, 0xff, 12);
50 memset(&gdtcmd, 0, sizeof(gdth_cmd_str));
51
52 TRACE2(("gdth_set_asc_info() ha %d\n",ha->hanum));
53 orig_length = length + 5;
54 drive = -1;
55 wb_mode = 0;
56 found = FALSE;
57
58 if (length >= 5 && strncmp(buffer,"flush",5)==0) {
59 buffer += 6;
60 length -= 6;
61 if (length && *buffer>='0' && *buffer<='9') {
62 drive = (int)(*buffer-'0');
63 ++buffer; --length;
64 if (length && *buffer>='0' && *buffer<='9') {
65 drive = drive*10 + (int)(*buffer-'0');
66 ++buffer; --length;
67 }
68 printk("GDT: Flushing host drive %d .. ",drive);
69 } else {
70 printk("GDT: Flushing all host drives .. ");
71 }
72 for (i = 0; i < MAX_HDRIVES; ++i) {
73 if (ha->hdr[i].present) {
74 if (drive != -1 && i != drive)
75 continue;
76 found = TRUE;
77 gdtcmd.Service = CACHESERVICE;
78 gdtcmd.OpCode = GDT_FLUSH;
79 if (ha->cache_feat & GDT_64BIT) {
80 gdtcmd.u.cache64.DeviceNo = i;
81 gdtcmd.u.cache64.BlockNo = 1;
82 } else {
83 gdtcmd.u.cache.DeviceNo = i;
84 gdtcmd.u.cache.BlockNo = 1;
85 }
86
87 gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
88 }
89 }
90 if (!found)
91 printk("\nNo host drive found !\n");
92 else
93 printk("Done.\n");
94 return(orig_length);
95 }
96
97 if (length >= 7 && strncmp(buffer,"wbp_off",7)==0) {
98 buffer += 8;
99 length -= 8;
100 printk("GDT: Disabling write back permanently .. ");
101 wb_mode = 1;
102 } else if (length >= 6 && strncmp(buffer,"wbp_on",6)==0) {
103 buffer += 7;
104 length -= 7;
105 printk("GDT: Enabling write back permanently .. ");
106 wb_mode = 2;
107 } else if (length >= 6 && strncmp(buffer,"wb_off",6)==0) {
108 buffer += 7;
109 length -= 7;
110 printk("GDT: Disabling write back commands .. ");
111 if (ha->cache_feat & GDT_WR_THROUGH) {
112 gdth_write_through = TRUE;
113 printk("Done.\n");
114 } else {
115 printk("Not supported !\n");
116 }
117 return(orig_length);
118 } else if (length >= 5 && strncmp(buffer,"wb_on",5)==0) {
119 buffer += 6;
120 length -= 6;
121 printk("GDT: Enabling write back commands .. ");
122 gdth_write_through = FALSE;
123 printk("Done.\n");
124 return(orig_length);
125 }
126
127 if (wb_mode) {
128 if (!gdth_ioctl_alloc(ha, sizeof(gdth_cpar_str), TRUE, &paddr))
129 return(-EBUSY);
130 pcpar = (gdth_cpar_str *)ha->pscratch;
131 memcpy( pcpar, &ha->cpar, sizeof(gdth_cpar_str) );
132 gdtcmd.Service = CACHESERVICE;
133 gdtcmd.OpCode = GDT_IOCTL;
134 gdtcmd.u.ioctl.p_param = paddr;
135 gdtcmd.u.ioctl.param_size = sizeof(gdth_cpar_str);
136 gdtcmd.u.ioctl.subfunc = CACHE_CONFIG;
137 gdtcmd.u.ioctl.channel = INVALID_CHANNEL;
138 pcpar->write_back = wb_mode==1 ? 0:1;
139
140 gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
141
142 gdth_ioctl_free(ha, GDTH_SCRATCH, ha->pscratch, paddr);
143 printk("Done.\n");
144 return(orig_length);
145 }
146
147 printk("GDT: Unknown command: %s Length: %d\n",buffer,length);
148 return(-EINVAL);
149}
150
151static int gdth_get_info(char *buffer,char **start,off_t offset,int length,
152 struct Scsi_Host *host, gdth_ha_str *ha)
153{
154 int size = 0,len = 0;
155 off_t begin = 0,pos = 0;
156 int id, i, j, k, sec, flag;
157 int no_mdrv = 0, drv_no, is_mirr;
158 ulong32 cnt;
159 ulong64 paddr;
160 int rc = -ENOMEM;
161
162 gdth_cmd_str *gdtcmd;
163 gdth_evt_str *estr;
164 char hrec[161];
165 struct timeval tv;
166
167 char *buf;
168 gdth_dskstat_str *pds;
169 gdth_diskinfo_str *pdi;
170 gdth_arrayinf_str *pai;
171 gdth_defcnt_str *pdef;
172 gdth_cdrinfo_str *pcdi;
173 gdth_hget_str *phg;
174 char cmnd[MAX_COMMAND_SIZE];
175
176 gdtcmd = kmalloc(sizeof(*gdtcmd), GFP_KERNEL);
177 estr = kmalloc(sizeof(*estr), GFP_KERNEL);
178 if (!gdtcmd || !estr)
179 goto free_fail;
180
181 memset(cmnd, 0xff, 12);
182 memset(gdtcmd, 0, sizeof(gdth_cmd_str));
183
184 TRACE2(("gdth_get_info() ha %d\n",ha->hanum));
185
186
187 /* request is i.e. "cat /proc/scsi/gdth/0" */
188 /* format: %-15s\t%-10s\t%-15s\t%s */
189 /* driver parameters */
190 size = sprintf(buffer+len,"Driver Parameters:\n");
191 len += size; pos = begin + len;
192 if (reserve_list[0] == 0xff)
193 strcpy(hrec, "--");
194 else {
195 sprintf(hrec, "%d", reserve_list[0]);
196 for (i = 1; i < MAX_RES_ARGS; i++) {
197 if (reserve_list[i] == 0xff)
198 break;
199 sprintf(hrec,"%s,%d", hrec, reserve_list[i]);
200 }
201 }
202 size = sprintf(buffer+len,
203 " reserve_mode: \t%d \treserve_list: \t%s\n",
204 reserve_mode, hrec);
205 len += size; pos = begin + len;
206 size = sprintf(buffer+len,
207 " max_ids: \t%-3d \thdr_channel: \t%d\n",
208 max_ids, hdr_channel);
209 len += size; pos = begin + len;
210
211 /* controller information */
212 size = sprintf(buffer+len,"\nDisk Array Controller Information:\n");
213 len += size; pos = begin + len;
214 strcpy(hrec, ha->binfo.type_string);
215 size = sprintf(buffer+len,
216 " Number: \t%d \tName: \t%s\n",
217 ha->hanum, hrec);
218 len += size; pos = begin + len;
219
220 if (ha->more_proc)
221 sprintf(hrec, "%d.%02d.%02d-%c%03X",
222 (unchar)(ha->binfo.upd_fw_ver>>24),
223 (unchar)(ha->binfo.upd_fw_ver>>16),
224 (unchar)(ha->binfo.upd_fw_ver),
225 ha->bfeat.raid ? 'R':'N',
226 ha->binfo.upd_revision);
227 else
228 sprintf(hrec, "%d.%02d", (unchar)(ha->cpar.version>>8),
229 (unchar)(ha->cpar.version));
230
231 size = sprintf(buffer+len,
232 " Driver Ver.: \t%-10s\tFirmware Ver.: \t%s\n",
233 GDTH_VERSION_STR, hrec);
234 len += size; pos = begin + len;
235
236 if (ha->more_proc) {
237 /* more information: 1. about controller */
238 size = sprintf(buffer+len,
239 " Serial No.: \t0x%8X\tCache RAM size:\t%d KB\n",
240 ha->binfo.ser_no, ha->binfo.memsize / 1024);
241 len += size; pos = begin + len;
242 }
243
244#ifdef GDTH_DMA_STATISTICS
245 /* controller statistics */
246 size = sprintf(buffer+len,"\nController Statistics:\n");
247 len += size; pos = begin + len;
248 size = sprintf(buffer+len,
249 " 32-bit DMA buffer:\t%lu\t64-bit DMA buffer:\t%lu\n",
250 ha->dma32_cnt, ha->dma64_cnt);
251 len += size; pos = begin + len;
252#endif
253
254 if (pos < offset) {
255 len = 0;
256 begin = pos;
257 }
258 if (pos > offset + length)
259 goto stop_output;
260
261 if (ha->more_proc) {
262 /* more information: 2. about physical devices */
263 size = sprintf(buffer+len,"\nPhysical Devices:");
264 len += size; pos = begin + len;
265 flag = FALSE;
266
267 buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
268 if (!buf)
269 goto stop_output;
270 for (i = 0; i < ha->bus_cnt; ++i) {
271 /* 2.a statistics (and retries/reassigns) */
272 TRACE2(("pdr_statistics() chn %d\n",i));
273 pds = (gdth_dskstat_str *)(buf + GDTH_SCRATCH/4);
274 gdtcmd->Service = CACHESERVICE;
275 gdtcmd->OpCode = GDT_IOCTL;
276 gdtcmd->u.ioctl.p_param = paddr + GDTH_SCRATCH/4;
277 gdtcmd->u.ioctl.param_size = 3*GDTH_SCRATCH/4;
278 gdtcmd->u.ioctl.subfunc = DSK_STATISTICS | L_CTRL_PATTERN;
279 gdtcmd->u.ioctl.channel = ha->raw[i].address | INVALID_CHANNEL;
280 pds->bid = ha->raw[i].local_no;
281 pds->first = 0;
282 pds->entries = ha->raw[i].pdev_cnt;
283 cnt = (3*GDTH_SCRATCH/4 - 5 * sizeof(ulong32)) /
284 sizeof(pds->list[0]);
285 if (pds->entries > cnt)
286 pds->entries = cnt;
287
288 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
289 pds->count = 0;
290
291 /* other IOCTLs must fit into area GDTH_SCRATCH/4 */
292 for (j = 0; j < ha->raw[i].pdev_cnt; ++j) {
293 /* 2.b drive info */
294 TRACE2(("scsi_drv_info() chn %d dev %d\n",
295 i, ha->raw[i].id_list[j]));
296 pdi = (gdth_diskinfo_str *)buf;
297 gdtcmd->Service = CACHESERVICE;
298 gdtcmd->OpCode = GDT_IOCTL;
299 gdtcmd->u.ioctl.p_param = paddr;
300 gdtcmd->u.ioctl.param_size = sizeof(gdth_diskinfo_str);
301 gdtcmd->u.ioctl.subfunc = SCSI_DR_INFO | L_CTRL_PATTERN;
302 gdtcmd->u.ioctl.channel =
303 ha->raw[i].address | ha->raw[i].id_list[j];
304
305 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
306 strncpy(hrec,pdi->vendor,8);
307 strncpy(hrec+8,pdi->product,16);
308 strncpy(hrec+24,pdi->revision,4);
309 hrec[28] = 0;
310 size = sprintf(buffer+len,
311 "\n Chn/ID/LUN: \t%c/%02d/%d \tName: \t%s\n",
312 'A'+i,pdi->target_id,pdi->lun,hrec);
313 len += size; pos = begin + len;
314 flag = TRUE;
315 pdi->no_ldrive &= 0xffff;
316 if (pdi->no_ldrive == 0xffff)
317 strcpy(hrec,"--");
318 else
319 sprintf(hrec,"%d",pdi->no_ldrive);
320 size = sprintf(buffer+len,
321 " Capacity [MB]:\t%-6d \tTo Log. Drive: \t%s\n",
322 pdi->blkcnt/(1024*1024/pdi->blksize),
323 hrec);
324 len += size; pos = begin + len;
325 } else {
326 pdi->devtype = 0xff;
327 }
328
329 if (pdi->devtype == 0) {
330 /* search retries/reassigns */
331 for (k = 0; k < pds->count; ++k) {
332 if (pds->list[k].tid == pdi->target_id &&
333 pds->list[k].lun == pdi->lun) {
334 size = sprintf(buffer+len,
335 " Retries: \t%-6d \tReassigns: \t%d\n",
336 pds->list[k].retries,
337 pds->list[k].reassigns);
338 len += size; pos = begin + len;
339 break;
340 }
341 }
342 /* 2.c grown defects */
343 TRACE2(("scsi_drv_defcnt() chn %d dev %d\n",
344 i, ha->raw[i].id_list[j]));
345 pdef = (gdth_defcnt_str *)buf;
346 gdtcmd->Service = CACHESERVICE;
347 gdtcmd->OpCode = GDT_IOCTL;
348 gdtcmd->u.ioctl.p_param = paddr;
349 gdtcmd->u.ioctl.param_size = sizeof(gdth_defcnt_str);
350 gdtcmd->u.ioctl.subfunc = SCSI_DEF_CNT | L_CTRL_PATTERN;
351 gdtcmd->u.ioctl.channel =
352 ha->raw[i].address | ha->raw[i].id_list[j];
353 pdef->sddc_type = 0x08;
354
355 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
356 size = sprintf(buffer+len,
357 " Grown Defects:\t%d\n",
358 pdef->sddc_cnt);
359 len += size; pos = begin + len;
360 }
361 }
362 if (pos < offset) {
363 len = 0;
364 begin = pos;
365 }
366 if (pos > offset + length)
367 goto stop_output;
368 }
369 }
370 gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
371
372 if (!flag) {
373 size = sprintf(buffer+len, "\n --\n");
374 len += size; pos = begin + len;
375 }
376
377 /* 3. about logical drives */
378 size = sprintf(buffer+len,"\nLogical Drives:");
379 len += size; pos = begin + len;
380 flag = FALSE;
381
382 buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
383 if (!buf)
384 goto stop_output;
385 for (i = 0; i < MAX_LDRIVES; ++i) {
386 if (!ha->hdr[i].is_logdrv)
387 continue;
388 drv_no = i;
389 j = k = 0;
390 is_mirr = FALSE;
391 do {
392 /* 3.a log. drive info */
393 TRACE2(("cache_drv_info() drive no %d\n",drv_no));
394 pcdi = (gdth_cdrinfo_str *)buf;
395 gdtcmd->Service = CACHESERVICE;
396 gdtcmd->OpCode = GDT_IOCTL;
397 gdtcmd->u.ioctl.p_param = paddr;
398 gdtcmd->u.ioctl.param_size = sizeof(gdth_cdrinfo_str);
399 gdtcmd->u.ioctl.subfunc = CACHE_DRV_INFO;
400 gdtcmd->u.ioctl.channel = drv_no;
401 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
402 break;
403 pcdi->ld_dtype >>= 16;
404 j++;
405 if (pcdi->ld_dtype > 2) {
406 strcpy(hrec, "missing");
407 } else if (pcdi->ld_error & 1) {
408 strcpy(hrec, "fault");
409 } else if (pcdi->ld_error & 2) {
410 strcpy(hrec, "invalid");
411 k++; j--;
412 } else {
413 strcpy(hrec, "ok");
414 }
415
416 if (drv_no == i) {
417 size = sprintf(buffer+len,
418 "\n Number: \t%-2d \tStatus: \t%s\n",
419 drv_no, hrec);
420 len += size; pos = begin + len;
421 flag = TRUE;
422 no_mdrv = pcdi->cd_ldcnt;
423 if (no_mdrv > 1 || pcdi->ld_slave != -1) {
424 is_mirr = TRUE;
425 strcpy(hrec, "RAID-1");
426 } else if (pcdi->ld_dtype == 0) {
427 strcpy(hrec, "Disk");
428 } else if (pcdi->ld_dtype == 1) {
429 strcpy(hrec, "RAID-0");
430 } else if (pcdi->ld_dtype == 2) {
431 strcpy(hrec, "Chain");
432 } else {
433 strcpy(hrec, "???");
434 }
435 size = sprintf(buffer+len,
436 " Capacity [MB]:\t%-6d \tType: \t%s\n",
437 pcdi->ld_blkcnt/(1024*1024/pcdi->ld_blksize),
438 hrec);
439 len += size; pos = begin + len;
440 } else {
441 size = sprintf(buffer+len,
442 " Slave Number: \t%-2d \tStatus: \t%s\n",
443 drv_no & 0x7fff, hrec);
444 len += size; pos = begin + len;
445 }
446 drv_no = pcdi->ld_slave;
447 if (pos < offset) {
448 len = 0;
449 begin = pos;
450 }
451 if (pos > offset + length)
452 goto stop_output;
453 } while (drv_no != -1);
454
455 if (is_mirr) {
456 size = sprintf(buffer+len,
457 " Missing Drv.: \t%-2d \tInvalid Drv.: \t%d\n",
458 no_mdrv - j - k, k);
459 len += size; pos = begin + len;
460 }
461
462 if (!ha->hdr[i].is_arraydrv)
463 strcpy(hrec, "--");
464 else
465 sprintf(hrec, "%d", ha->hdr[i].master_no);
466 size = sprintf(buffer+len,
467 " To Array Drv.:\t%s\n", hrec);
468 len += size; pos = begin + len;
469 if (pos < offset) {
470 len = 0;
471 begin = pos;
472 }
473 if (pos > offset + length)
474 goto stop_output;
475 }
476 gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
477
478 if (!flag) {
479 size = sprintf(buffer+len, "\n --\n");
480 len += size; pos = begin + len;
481 }
482
483 /* 4. about array drives */
484 size = sprintf(buffer+len,"\nArray Drives:");
485 len += size; pos = begin + len;
486 flag = FALSE;
487
488 buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
489 if (!buf)
490 goto stop_output;
491 for (i = 0; i < MAX_LDRIVES; ++i) {
492 if (!(ha->hdr[i].is_arraydrv && ha->hdr[i].is_master))
493 continue;
494 /* 4.a array drive info */
495 TRACE2(("array_info() drive no %d\n",i));
496 pai = (gdth_arrayinf_str *)buf;
497 gdtcmd->Service = CACHESERVICE;
498 gdtcmd->OpCode = GDT_IOCTL;
499 gdtcmd->u.ioctl.p_param = paddr;
500 gdtcmd->u.ioctl.param_size = sizeof(gdth_arrayinf_str);
501 gdtcmd->u.ioctl.subfunc = ARRAY_INFO | LA_CTRL_PATTERN;
502 gdtcmd->u.ioctl.channel = i;
503 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
504 if (pai->ai_state == 0)
505 strcpy(hrec, "idle");
506 else if (pai->ai_state == 2)
507 strcpy(hrec, "build");
508 else if (pai->ai_state == 4)
509 strcpy(hrec, "ready");
510 else if (pai->ai_state == 6)
511 strcpy(hrec, "fail");
512 else if (pai->ai_state == 8 || pai->ai_state == 10)
513 strcpy(hrec, "rebuild");
514 else
515 strcpy(hrec, "error");
516 if (pai->ai_ext_state & 0x10)
517 strcat(hrec, "/expand");
518 else if (pai->ai_ext_state & 0x1)
519 strcat(hrec, "/patch");
520 size = sprintf(buffer+len,
521 "\n Number: \t%-2d \tStatus: \t%s\n",
522 i,hrec);
523 len += size; pos = begin + len;
524 flag = TRUE;
525
526 if (pai->ai_type == 0)
527 strcpy(hrec, "RAID-0");
528 else if (pai->ai_type == 4)
529 strcpy(hrec, "RAID-4");
530 else if (pai->ai_type == 5)
531 strcpy(hrec, "RAID-5");
532 else
533 strcpy(hrec, "RAID-10");
534 size = sprintf(buffer+len,
535 " Capacity [MB]:\t%-6d \tType: \t%s\n",
536 pai->ai_size/(1024*1024/pai->ai_secsize),
537 hrec);
538 len += size; pos = begin + len;
539 if (pos < offset) {
540 len = 0;
541 begin = pos;
542 }
543 if (pos > offset + length)
544 goto stop_output;
545 }
546 }
547 gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
548
549 if (!flag) {
550 size = sprintf(buffer+len, "\n --\n");
551 len += size; pos = begin + len;
552 }
553
554 /* 5. about host drives */
555 size = sprintf(buffer+len,"\nHost Drives:");
556 len += size; pos = begin + len;
557 flag = FALSE;
558
559 buf = gdth_ioctl_alloc(ha, sizeof(gdth_hget_str), FALSE, &paddr);
560 if (!buf)
561 goto stop_output;
562 for (i = 0; i < MAX_LDRIVES; ++i) {
563 if (!ha->hdr[i].is_logdrv ||
564 (ha->hdr[i].is_arraydrv && !ha->hdr[i].is_master))
565 continue;
566 /* 5.a get host drive list */
567 TRACE2(("host_get() drv_no %d\n",i));
568 phg = (gdth_hget_str *)buf;
569 gdtcmd->Service = CACHESERVICE;
570 gdtcmd->OpCode = GDT_IOCTL;
571 gdtcmd->u.ioctl.p_param = paddr;
572 gdtcmd->u.ioctl.param_size = sizeof(gdth_hget_str);
573 gdtcmd->u.ioctl.subfunc = HOST_GET | LA_CTRL_PATTERN;
574 gdtcmd->u.ioctl.channel = i;
575 phg->entries = MAX_HDRIVES;
576 phg->offset = GDTOFFSOF(gdth_hget_str, entry[0]);
577 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
578 ha->hdr[i].ldr_no = i;
579 ha->hdr[i].rw_attribs = 0;
580 ha->hdr[i].start_sec = 0;
581 } else {
582 for (j = 0; j < phg->entries; ++j) {
583 k = phg->entry[j].host_drive;
584 if (k >= MAX_LDRIVES)
585 continue;
586 ha->hdr[k].ldr_no = phg->entry[j].log_drive;
587 ha->hdr[k].rw_attribs = phg->entry[j].rw_attribs;
588 ha->hdr[k].start_sec = phg->entry[j].start_sec;
589 }
590 }
591 }
592 gdth_ioctl_free(ha, sizeof(gdth_hget_str), buf, paddr);
593
594 for (i = 0; i < MAX_HDRIVES; ++i) {
595 if (!(ha->hdr[i].present))
596 continue;
597
598 size = sprintf(buffer+len,
599 "\n Number: \t%-2d \tArr/Log. Drive:\t%d\n",
600 i, ha->hdr[i].ldr_no);
601 len += size; pos = begin + len;
602 flag = TRUE;
603
604 size = sprintf(buffer+len,
605 " Capacity [MB]:\t%-6d \tStart Sector: \t%d\n",
606 (ulong32)(ha->hdr[i].size/2048), ha->hdr[i].start_sec);
607 len += size; pos = begin + len;
608 if (pos < offset) {
609 len = 0;
610 begin = pos;
611 }
612 if (pos > offset + length)
613 goto stop_output;
614 }
615
616 if (!flag) {
617 size = sprintf(buffer+len, "\n --\n");
618 len += size; pos = begin + len;
619 }
620 }
621
622 /* controller events */
623 size = sprintf(buffer+len,"\nController Events:\n");
624 len += size; pos = begin + len;
625
626 for (id = -1;;) {
627 id = gdth_read_event(ha, id, estr);
628 if (estr->event_source == 0)
629 break;
630 if (estr->event_data.eu.driver.ionode == ha->hanum &&
631 estr->event_source == ES_ASYNC) {
632 gdth_log_event(&estr->event_data, hrec);
633 do_gettimeofday(&tv);
634 sec = (int)(tv.tv_sec - estr->first_stamp);
635 if (sec < 0) sec = 0;
636 size = sprintf(buffer+len," date- %02d:%02d:%02d\t%s\n",
637 sec/3600, sec%3600/60, sec%60, hrec);
638 len += size; pos = begin + len;
639 if (pos < offset) {
640 len = 0;
641 begin = pos;
642 }
643 if (pos > offset + length)
644 goto stop_output;
645 }
646 if (id == -1)
647 break;
648 }
649
650stop_output:
651 *start = buffer +(offset-begin);
652 len -= (offset-begin);
653 if (len > length)
654 len = length;
655 TRACE2(("get_info() len %d pos %d begin %d offset %d length %d size %d\n",
656 len,(int)pos,(int)begin,(int)offset,length,size));
657 rc = len;
658
659free_fail:
660 kfree(gdtcmd);
661 kfree(estr);
662 return rc;
663}
664
665static char *gdth_ioctl_alloc(gdth_ha_str *ha, int size, int scratch,
666 ulong64 *paddr)
667{
668 ulong flags;
669 char *ret_val;
670
671 if (size == 0)
672 return NULL;
673
674 spin_lock_irqsave(&ha->smp_lock, flags);
675
676 if (!ha->scratch_busy && size <= GDTH_SCRATCH) {
677 ha->scratch_busy = TRUE;
678 ret_val = ha->pscratch;
679 *paddr = ha->scratch_phys;
680 } else if (scratch) {
681 ret_val = NULL;
682 } else {
683 dma_addr_t dma_addr;
684
685 ret_val = pci_alloc_consistent(ha->pdev, size, &dma_addr);
686 *paddr = dma_addr;
687 }
688
689 spin_unlock_irqrestore(&ha->smp_lock, flags);
690 return ret_val;
691}
692
693static void gdth_ioctl_free(gdth_ha_str *ha, int size, char *buf, ulong64 paddr)
694{
695 ulong flags;
696
697 spin_lock_irqsave(&ha->smp_lock, flags);
698
699 if (buf == ha->pscratch) {
700 ha->scratch_busy = FALSE;
701 } else {
702 pci_free_consistent(ha->pdev, size, buf, paddr);
703 }
704
705 spin_unlock_irqrestore(&ha->smp_lock, flags);
706}
707
708#ifdef GDTH_IOCTL_PROC
709static int gdth_ioctl_check_bin(gdth_ha_str *ha, ushort size)
710{
711 ulong flags;
712 int ret_val;
713
714 spin_lock_irqsave(&ha->smp_lock, flags);
715
716 ret_val = FALSE;
717 if (ha->scratch_busy) {
718 if (((gdth_iord_str *)ha->pscratch)->size == (ulong32)size)
719 ret_val = TRUE;
720 }
721 spin_unlock_irqrestore(&ha->smp_lock, flags);
722 return ret_val;
723}
724#endif
725
726static void gdth_wait_completion(gdth_ha_str *ha, int busnum, int id)
727{
728 ulong flags;
729 int i;
730 Scsi_Cmnd *scp;
731 struct gdth_cmndinfo *cmndinfo;
732 unchar b, t;
733
734 spin_lock_irqsave(&ha->smp_lock, flags);
735
736 for (i = 0; i < GDTH_MAXCMDS; ++i) {
737 scp = ha->cmd_tab[i].cmnd;
738 cmndinfo = gdth_cmnd_priv(scp);
739
740 b = scp->device->channel;
741 t = scp->device->id;
742 if (!SPECIAL_SCP(scp) && t == (unchar)id &&
743 b == (unchar)busnum) {
744 cmndinfo->wait_for_completion = 0;
745 spin_unlock_irqrestore(&ha->smp_lock, flags);
746 while (!cmndinfo->wait_for_completion)
747 barrier();
748 spin_lock_irqsave(&ha->smp_lock, flags);
749 }
750 }
751 spin_unlock_irqrestore(&ha->smp_lock, flags);
752}
753
754static void gdth_stop_timeout(gdth_ha_str *ha, int busnum, int id)
755{
756 ulong flags;
757 Scsi_Cmnd *scp;
758 unchar b, t;
759
760 spin_lock_irqsave(&ha->smp_lock, flags);
761
762 for (scp = ha->req_first; scp; scp = (Scsi_Cmnd *)scp->SCp.ptr) {
763 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
764 if (!cmndinfo->internal_command) {
765 b = scp->device->channel;
766 t = scp->device->id;
767 if (t == (unchar)id && b == (unchar)busnum) {
768 TRACE2(("gdth_stop_timeout(): update_timeout()\n"));
769 cmndinfo->timeout = gdth_update_timeout(scp, 0);
770 }
771 }
772 }
773 spin_unlock_irqrestore(&ha->smp_lock, flags);
774}
775
776static void gdth_start_timeout(gdth_ha_str *ha, int busnum, int id)
777{
778 ulong flags;
779 Scsi_Cmnd *scp;
780 unchar b, t;
781
782 spin_lock_irqsave(&ha->smp_lock, flags);
783
784 for (scp = ha->req_first; scp; scp = (Scsi_Cmnd *)scp->SCp.ptr) {
785 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
786 if (!cmndinfo->internal_command) {
787 b = scp->device->channel;
788 t = scp->device->id;
789 if (t == (unchar)id && b == (unchar)busnum) {
790 TRACE2(("gdth_start_timeout(): update_timeout()\n"));
791 gdth_update_timeout(scp, cmndinfo->timeout);
792 }
793 }
794 }
795 spin_unlock_irqrestore(&ha->smp_lock, flags);
796}
797
798static int gdth_update_timeout(Scsi_Cmnd *scp, int timeout)
799{
800 int oldto;
801
802 oldto = scp->timeout_per_command;
803 scp->timeout_per_command = timeout;
804
805 if (timeout == 0) {
806 del_timer(&scp->eh_timeout);
807 scp->eh_timeout.data = (unsigned long) NULL;
808 scp->eh_timeout.expires = 0;
809 } else {
810 if (scp->eh_timeout.data != (unsigned long) NULL)
811 del_timer(&scp->eh_timeout);
812 scp->eh_timeout.data = (unsigned long) scp;
813 scp->eh_timeout.expires = jiffies + timeout;
814 add_timer(&scp->eh_timeout);
815 }
816
817 return oldto;
818}