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1// SPDX-License-Identifier: GPL-2.0
2/* gdth_proc.c
3 * $Id: gdth_proc.c,v 1.43 2006/01/11 16:15:00 achim Exp $
4 */
5
6#include <linux/completion.h>
7#include <linux/slab.h>
8
9int gdth_set_info(struct Scsi_Host *host, char *buffer, int length)
10{
11 gdth_ha_str *ha = shost_priv(host);
12 int ret_val = -EINVAL;
13
14 TRACE2(("gdth_set_info() ha %d\n",ha->hanum,));
15
16 if (length >= 4) {
17 if (strncmp(buffer,"gdth",4) == 0) {
18 buffer += 5;
19 length -= 5;
20 ret_val = gdth_set_asc_info(host, buffer, length, ha);
21 }
22 }
23
24 return ret_val;
25}
26
27static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer,
28 int length, gdth_ha_str *ha)
29{
30 int orig_length, drive, wb_mode;
31 int i, found;
32 gdth_cmd_str gdtcmd;
33 gdth_cpar_str *pcpar;
34 u64 paddr;
35
36 char cmnd[MAX_COMMAND_SIZE];
37 memset(cmnd, 0xff, 12);
38 memset(&gdtcmd, 0, sizeof(gdth_cmd_str));
39
40 TRACE2(("gdth_set_asc_info() ha %d\n",ha->hanum));
41 orig_length = length + 5;
42 drive = -1;
43 wb_mode = 0;
44 found = FALSE;
45
46 if (length >= 5 && strncmp(buffer,"flush",5)==0) {
47 buffer += 6;
48 length -= 6;
49 if (length && *buffer>='0' && *buffer<='9') {
50 drive = (int)(*buffer-'0');
51 ++buffer; --length;
52 if (length && *buffer>='0' && *buffer<='9') {
53 drive = drive*10 + (int)(*buffer-'0');
54 ++buffer; --length;
55 }
56 printk("GDT: Flushing host drive %d .. ",drive);
57 } else {
58 printk("GDT: Flushing all host drives .. ");
59 }
60 for (i = 0; i < MAX_HDRIVES; ++i) {
61 if (ha->hdr[i].present) {
62 if (drive != -1 && i != drive)
63 continue;
64 found = TRUE;
65 gdtcmd.Service = CACHESERVICE;
66 gdtcmd.OpCode = GDT_FLUSH;
67 if (ha->cache_feat & GDT_64BIT) {
68 gdtcmd.u.cache64.DeviceNo = i;
69 gdtcmd.u.cache64.BlockNo = 1;
70 } else {
71 gdtcmd.u.cache.DeviceNo = i;
72 gdtcmd.u.cache.BlockNo = 1;
73 }
74
75 gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
76 }
77 }
78 if (!found)
79 printk("\nNo host drive found !\n");
80 else
81 printk("Done.\n");
82 return(orig_length);
83 }
84
85 if (length >= 7 && strncmp(buffer,"wbp_off",7)==0) {
86 buffer += 8;
87 length -= 8;
88 printk("GDT: Disabling write back permanently .. ");
89 wb_mode = 1;
90 } else if (length >= 6 && strncmp(buffer,"wbp_on",6)==0) {
91 buffer += 7;
92 length -= 7;
93 printk("GDT: Enabling write back permanently .. ");
94 wb_mode = 2;
95 } else if (length >= 6 && strncmp(buffer,"wb_off",6)==0) {
96 buffer += 7;
97 length -= 7;
98 printk("GDT: Disabling write back commands .. ");
99 if (ha->cache_feat & GDT_WR_THROUGH) {
100 gdth_write_through = TRUE;
101 printk("Done.\n");
102 } else {
103 printk("Not supported !\n");
104 }
105 return(orig_length);
106 } else if (length >= 5 && strncmp(buffer,"wb_on",5)==0) {
107 buffer += 6;
108 length -= 6;
109 printk("GDT: Enabling write back commands .. ");
110 gdth_write_through = FALSE;
111 printk("Done.\n");
112 return(orig_length);
113 }
114
115 if (wb_mode) {
116 if (!gdth_ioctl_alloc(ha, sizeof(gdth_cpar_str), TRUE, &paddr))
117 return(-EBUSY);
118 pcpar = (gdth_cpar_str *)ha->pscratch;
119 memcpy( pcpar, &ha->cpar, sizeof(gdth_cpar_str) );
120 gdtcmd.Service = CACHESERVICE;
121 gdtcmd.OpCode = GDT_IOCTL;
122 gdtcmd.u.ioctl.p_param = paddr;
123 gdtcmd.u.ioctl.param_size = sizeof(gdth_cpar_str);
124 gdtcmd.u.ioctl.subfunc = CACHE_CONFIG;
125 gdtcmd.u.ioctl.channel = INVALID_CHANNEL;
126 pcpar->write_back = wb_mode==1 ? 0:1;
127
128 gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
129
130 gdth_ioctl_free(ha, GDTH_SCRATCH, ha->pscratch, paddr);
131 printk("Done.\n");
132 return(orig_length);
133 }
134
135 printk("GDT: Unknown command: %s Length: %d\n",buffer,length);
136 return(-EINVAL);
137}
138
139int gdth_show_info(struct seq_file *m, struct Scsi_Host *host)
140{
141 gdth_ha_str *ha = shost_priv(host);
142 int hlen;
143 int id, i, j, k, sec, flag;
144 int no_mdrv = 0, drv_no, is_mirr;
145 u32 cnt;
146 u64 paddr;
147 int rc = -ENOMEM;
148
149 gdth_cmd_str *gdtcmd;
150 gdth_evt_str *estr;
151 char hrec[277];
152
153 char *buf;
154 gdth_dskstat_str *pds;
155 gdth_diskinfo_str *pdi;
156 gdth_arrayinf_str *pai;
157 gdth_defcnt_str *pdef;
158 gdth_cdrinfo_str *pcdi;
159 gdth_hget_str *phg;
160 char cmnd[MAX_COMMAND_SIZE];
161
162 gdtcmd = kmalloc(sizeof(*gdtcmd), GFP_KERNEL);
163 estr = kmalloc(sizeof(*estr), GFP_KERNEL);
164 if (!gdtcmd || !estr)
165 goto free_fail;
166
167 memset(cmnd, 0xff, 12);
168 memset(gdtcmd, 0, sizeof(gdth_cmd_str));
169
170 TRACE2(("gdth_get_info() ha %d\n",ha->hanum));
171
172
173 /* request is i.e. "cat /proc/scsi/gdth/0" */
174 /* format: %-15s\t%-10s\t%-15s\t%s */
175 /* driver parameters */
176 seq_puts(m, "Driver Parameters:\n");
177 if (reserve_list[0] == 0xff)
178 strcpy(hrec, "--");
179 else {
180 hlen = sprintf(hrec, "%d", reserve_list[0]);
181 for (i = 1; i < MAX_RES_ARGS; i++) {
182 if (reserve_list[i] == 0xff)
183 break;
184 hlen += snprintf(hrec + hlen , 161 - hlen, ",%d", reserve_list[i]);
185 }
186 }
187 seq_printf(m,
188 " reserve_mode: \t%d \treserve_list: \t%s\n",
189 reserve_mode, hrec);
190 seq_printf(m,
191 " max_ids: \t%-3d \thdr_channel: \t%d\n",
192 max_ids, hdr_channel);
193
194 /* controller information */
195 seq_puts(m, "\nDisk Array Controller Information:\n");
196 seq_printf(m,
197 " Number: \t%d \tName: \t%s\n",
198 ha->hanum, ha->binfo.type_string);
199
200 seq_printf(m,
201 " Driver Ver.: \t%-10s\tFirmware Ver.: \t",
202 GDTH_VERSION_STR);
203 if (ha->more_proc)
204 seq_printf(m, "%d.%02d.%02d-%c%03X\n",
205 (u8)(ha->binfo.upd_fw_ver>>24),
206 (u8)(ha->binfo.upd_fw_ver>>16),
207 (u8)(ha->binfo.upd_fw_ver),
208 ha->bfeat.raid ? 'R':'N',
209 ha->binfo.upd_revision);
210 else
211 seq_printf(m, "%d.%02d\n", (u8)(ha->cpar.version>>8),
212 (u8)(ha->cpar.version));
213
214 if (ha->more_proc)
215 /* more information: 1. about controller */
216 seq_printf(m,
217 " Serial No.: \t0x%8X\tCache RAM size:\t%d KB\n",
218 ha->binfo.ser_no, ha->binfo.memsize / 1024);
219
220#ifdef GDTH_DMA_STATISTICS
221 /* controller statistics */
222 seq_puts(m, "\nController Statistics:\n");
223 seq_printf(m,
224 " 32-bit DMA buffer:\t%lu\t64-bit DMA buffer:\t%lu\n",
225 ha->dma32_cnt, ha->dma64_cnt);
226#endif
227
228 if (ha->more_proc) {
229 /* more information: 2. about physical devices */
230 seq_puts(m, "\nPhysical Devices:");
231 flag = FALSE;
232
233 buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
234 if (!buf)
235 goto stop_output;
236 for (i = 0; i < ha->bus_cnt; ++i) {
237 /* 2.a statistics (and retries/reassigns) */
238 TRACE2(("pdr_statistics() chn %d\n",i));
239 pds = (gdth_dskstat_str *)(buf + GDTH_SCRATCH/4);
240 gdtcmd->Service = CACHESERVICE;
241 gdtcmd->OpCode = GDT_IOCTL;
242 gdtcmd->u.ioctl.p_param = paddr + GDTH_SCRATCH/4;
243 gdtcmd->u.ioctl.param_size = 3*GDTH_SCRATCH/4;
244 gdtcmd->u.ioctl.subfunc = DSK_STATISTICS | L_CTRL_PATTERN;
245 gdtcmd->u.ioctl.channel = ha->raw[i].address | INVALID_CHANNEL;
246 pds->bid = ha->raw[i].local_no;
247 pds->first = 0;
248 pds->entries = ha->raw[i].pdev_cnt;
249 cnt = (3*GDTH_SCRATCH/4 - 5 * sizeof(u32)) /
250 sizeof(pds->list[0]);
251 if (pds->entries > cnt)
252 pds->entries = cnt;
253
254 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
255 pds->count = 0;
256
257 /* other IOCTLs must fit into area GDTH_SCRATCH/4 */
258 for (j = 0; j < ha->raw[i].pdev_cnt; ++j) {
259 /* 2.b drive info */
260 TRACE2(("scsi_drv_info() chn %d dev %d\n",
261 i, ha->raw[i].id_list[j]));
262 pdi = (gdth_diskinfo_str *)buf;
263 gdtcmd->Service = CACHESERVICE;
264 gdtcmd->OpCode = GDT_IOCTL;
265 gdtcmd->u.ioctl.p_param = paddr;
266 gdtcmd->u.ioctl.param_size = sizeof(gdth_diskinfo_str);
267 gdtcmd->u.ioctl.subfunc = SCSI_DR_INFO | L_CTRL_PATTERN;
268 gdtcmd->u.ioctl.channel =
269 ha->raw[i].address | ha->raw[i].id_list[j];
270
271 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
272 strncpy(hrec,pdi->vendor,8);
273 strncpy(hrec+8,pdi->product,16);
274 strncpy(hrec+24,pdi->revision,4);
275 hrec[28] = 0;
276 seq_printf(m,
277 "\n Chn/ID/LUN: \t%c/%02d/%d \tName: \t%s\n",
278 'A'+i,pdi->target_id,pdi->lun,hrec);
279 flag = TRUE;
280 pdi->no_ldrive &= 0xffff;
281 if (pdi->no_ldrive == 0xffff)
282 strcpy(hrec,"--");
283 else
284 sprintf(hrec,"%d",pdi->no_ldrive);
285 seq_printf(m,
286 " Capacity [MB]:\t%-6d \tTo Log. Drive: \t%s\n",
287 pdi->blkcnt/(1024*1024/pdi->blksize),
288 hrec);
289 } else {
290 pdi->devtype = 0xff;
291 }
292
293 if (pdi->devtype == 0) {
294 /* search retries/reassigns */
295 for (k = 0; k < pds->count; ++k) {
296 if (pds->list[k].tid == pdi->target_id &&
297 pds->list[k].lun == pdi->lun) {
298 seq_printf(m,
299 " Retries: \t%-6d \tReassigns: \t%d\n",
300 pds->list[k].retries,
301 pds->list[k].reassigns);
302 break;
303 }
304 }
305 /* 2.c grown defects */
306 TRACE2(("scsi_drv_defcnt() chn %d dev %d\n",
307 i, ha->raw[i].id_list[j]));
308 pdef = (gdth_defcnt_str *)buf;
309 gdtcmd->Service = CACHESERVICE;
310 gdtcmd->OpCode = GDT_IOCTL;
311 gdtcmd->u.ioctl.p_param = paddr;
312 gdtcmd->u.ioctl.param_size = sizeof(gdth_defcnt_str);
313 gdtcmd->u.ioctl.subfunc = SCSI_DEF_CNT | L_CTRL_PATTERN;
314 gdtcmd->u.ioctl.channel =
315 ha->raw[i].address | ha->raw[i].id_list[j];
316 pdef->sddc_type = 0x08;
317
318 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
319 seq_printf(m,
320 " Grown Defects:\t%d\n",
321 pdef->sddc_cnt);
322 }
323 }
324 }
325 }
326 gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
327
328 if (!flag)
329 seq_puts(m, "\n --\n");
330
331 /* 3. about logical drives */
332 seq_puts(m, "\nLogical Drives:");
333 flag = FALSE;
334
335 buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
336 if (!buf)
337 goto stop_output;
338 for (i = 0; i < MAX_LDRIVES; ++i) {
339 if (!ha->hdr[i].is_logdrv)
340 continue;
341 drv_no = i;
342 j = k = 0;
343 is_mirr = FALSE;
344 do {
345 /* 3.a log. drive info */
346 TRACE2(("cache_drv_info() drive no %d\n",drv_no));
347 pcdi = (gdth_cdrinfo_str *)buf;
348 gdtcmd->Service = CACHESERVICE;
349 gdtcmd->OpCode = GDT_IOCTL;
350 gdtcmd->u.ioctl.p_param = paddr;
351 gdtcmd->u.ioctl.param_size = sizeof(gdth_cdrinfo_str);
352 gdtcmd->u.ioctl.subfunc = CACHE_DRV_INFO;
353 gdtcmd->u.ioctl.channel = drv_no;
354 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
355 break;
356 pcdi->ld_dtype >>= 16;
357 j++;
358 if (pcdi->ld_dtype > 2) {
359 strcpy(hrec, "missing");
360 } else if (pcdi->ld_error & 1) {
361 strcpy(hrec, "fault");
362 } else if (pcdi->ld_error & 2) {
363 strcpy(hrec, "invalid");
364 k++; j--;
365 } else {
366 strcpy(hrec, "ok");
367 }
368
369 if (drv_no == i) {
370 seq_printf(m,
371 "\n Number: \t%-2d \tStatus: \t%s\n",
372 drv_no, hrec);
373 flag = TRUE;
374 no_mdrv = pcdi->cd_ldcnt;
375 if (no_mdrv > 1 || pcdi->ld_slave != -1) {
376 is_mirr = TRUE;
377 strcpy(hrec, "RAID-1");
378 } else if (pcdi->ld_dtype == 0) {
379 strcpy(hrec, "Disk");
380 } else if (pcdi->ld_dtype == 1) {
381 strcpy(hrec, "RAID-0");
382 } else if (pcdi->ld_dtype == 2) {
383 strcpy(hrec, "Chain");
384 } else {
385 strcpy(hrec, "???");
386 }
387 seq_printf(m,
388 " Capacity [MB]:\t%-6d \tType: \t%s\n",
389 pcdi->ld_blkcnt/(1024*1024/pcdi->ld_blksize),
390 hrec);
391 } else {
392 seq_printf(m,
393 " Slave Number: \t%-2d \tStatus: \t%s\n",
394 drv_no & 0x7fff, hrec);
395 }
396 drv_no = pcdi->ld_slave;
397 } while (drv_no != -1);
398
399 if (is_mirr)
400 seq_printf(m,
401 " Missing Drv.: \t%-2d \tInvalid Drv.: \t%d\n",
402 no_mdrv - j - k, k);
403
404 if (!ha->hdr[i].is_arraydrv)
405 strcpy(hrec, "--");
406 else
407 sprintf(hrec, "%d", ha->hdr[i].master_no);
408 seq_printf(m,
409 " To Array Drv.:\t%s\n", hrec);
410 }
411 gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
412
413 if (!flag)
414 seq_puts(m, "\n --\n");
415
416 /* 4. about array drives */
417 seq_puts(m, "\nArray Drives:");
418 flag = FALSE;
419
420 buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
421 if (!buf)
422 goto stop_output;
423 for (i = 0; i < MAX_LDRIVES; ++i) {
424 if (!(ha->hdr[i].is_arraydrv && ha->hdr[i].is_master))
425 continue;
426 /* 4.a array drive info */
427 TRACE2(("array_info() drive no %d\n",i));
428 pai = (gdth_arrayinf_str *)buf;
429 gdtcmd->Service = CACHESERVICE;
430 gdtcmd->OpCode = GDT_IOCTL;
431 gdtcmd->u.ioctl.p_param = paddr;
432 gdtcmd->u.ioctl.param_size = sizeof(gdth_arrayinf_str);
433 gdtcmd->u.ioctl.subfunc = ARRAY_INFO | LA_CTRL_PATTERN;
434 gdtcmd->u.ioctl.channel = i;
435 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
436 if (pai->ai_state == 0)
437 strcpy(hrec, "idle");
438 else if (pai->ai_state == 2)
439 strcpy(hrec, "build");
440 else if (pai->ai_state == 4)
441 strcpy(hrec, "ready");
442 else if (pai->ai_state == 6)
443 strcpy(hrec, "fail");
444 else if (pai->ai_state == 8 || pai->ai_state == 10)
445 strcpy(hrec, "rebuild");
446 else
447 strcpy(hrec, "error");
448 if (pai->ai_ext_state & 0x10)
449 strcat(hrec, "/expand");
450 else if (pai->ai_ext_state & 0x1)
451 strcat(hrec, "/patch");
452 seq_printf(m,
453 "\n Number: \t%-2d \tStatus: \t%s\n",
454 i,hrec);
455 flag = TRUE;
456
457 if (pai->ai_type == 0)
458 strcpy(hrec, "RAID-0");
459 else if (pai->ai_type == 4)
460 strcpy(hrec, "RAID-4");
461 else if (pai->ai_type == 5)
462 strcpy(hrec, "RAID-5");
463 else
464 strcpy(hrec, "RAID-10");
465 seq_printf(m,
466 " Capacity [MB]:\t%-6d \tType: \t%s\n",
467 pai->ai_size/(1024*1024/pai->ai_secsize),
468 hrec);
469 }
470 }
471 gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
472
473 if (!flag)
474 seq_puts(m, "\n --\n");
475
476 /* 5. about host drives */
477 seq_puts(m, "\nHost Drives:");
478 flag = FALSE;
479
480 buf = gdth_ioctl_alloc(ha, sizeof(gdth_hget_str), FALSE, &paddr);
481 if (!buf)
482 goto stop_output;
483 for (i = 0; i < MAX_LDRIVES; ++i) {
484 if (!ha->hdr[i].is_logdrv ||
485 (ha->hdr[i].is_arraydrv && !ha->hdr[i].is_master))
486 continue;
487 /* 5.a get host drive list */
488 TRACE2(("host_get() drv_no %d\n",i));
489 phg = (gdth_hget_str *)buf;
490 gdtcmd->Service = CACHESERVICE;
491 gdtcmd->OpCode = GDT_IOCTL;
492 gdtcmd->u.ioctl.p_param = paddr;
493 gdtcmd->u.ioctl.param_size = sizeof(gdth_hget_str);
494 gdtcmd->u.ioctl.subfunc = HOST_GET | LA_CTRL_PATTERN;
495 gdtcmd->u.ioctl.channel = i;
496 phg->entries = MAX_HDRIVES;
497 phg->offset = GDTOFFSOF(gdth_hget_str, entry[0]);
498 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
499 ha->hdr[i].ldr_no = i;
500 ha->hdr[i].rw_attribs = 0;
501 ha->hdr[i].start_sec = 0;
502 } else {
503 for (j = 0; j < phg->entries; ++j) {
504 k = phg->entry[j].host_drive;
505 if (k >= MAX_LDRIVES)
506 continue;
507 ha->hdr[k].ldr_no = phg->entry[j].log_drive;
508 ha->hdr[k].rw_attribs = phg->entry[j].rw_attribs;
509 ha->hdr[k].start_sec = phg->entry[j].start_sec;
510 }
511 }
512 }
513 gdth_ioctl_free(ha, sizeof(gdth_hget_str), buf, paddr);
514
515 for (i = 0; i < MAX_HDRIVES; ++i) {
516 if (!(ha->hdr[i].present))
517 continue;
518
519 seq_printf(m,
520 "\n Number: \t%-2d \tArr/Log. Drive:\t%d\n",
521 i, ha->hdr[i].ldr_no);
522 flag = TRUE;
523
524 seq_printf(m,
525 " Capacity [MB]:\t%-6d \tStart Sector: \t%d\n",
526 (u32)(ha->hdr[i].size/2048), ha->hdr[i].start_sec);
527 }
528
529 if (!flag)
530 seq_puts(m, "\n --\n");
531 }
532
533 /* controller events */
534 seq_puts(m, "\nController Events:\n");
535
536 for (id = -1;;) {
537 id = gdth_read_event(ha, id, estr);
538 if (estr->event_source == 0)
539 break;
540 if (estr->event_data.eu.driver.ionode == ha->hanum &&
541 estr->event_source == ES_ASYNC) {
542 gdth_log_event(&estr->event_data, hrec);
543
544 /*
545 * Elapsed seconds subtraction with unsigned operands is
546 * safe from wrap around in year 2106. Executes as:
547 * operand a + (2's complement operand b) + 1
548 */
549
550 sec = (int)((u32)ktime_get_real_seconds() - estr->first_stamp);
551 if (sec < 0) sec = 0;
552 seq_printf(m," date- %02d:%02d:%02d\t%s\n",
553 sec/3600, sec%3600/60, sec%60, hrec);
554 }
555 if (id == -1)
556 break;
557 }
558stop_output:
559 rc = 0;
560free_fail:
561 kfree(gdtcmd);
562 kfree(estr);
563 return rc;
564}
565
566static char *gdth_ioctl_alloc(gdth_ha_str *ha, int size, int scratch,
567 u64 *paddr)
568{
569 unsigned long flags;
570 char *ret_val;
571
572 if (size == 0)
573 return NULL;
574
575 spin_lock_irqsave(&ha->smp_lock, flags);
576
577 if (!ha->scratch_busy && size <= GDTH_SCRATCH) {
578 ha->scratch_busy = TRUE;
579 ret_val = ha->pscratch;
580 *paddr = ha->scratch_phys;
581 } else if (scratch) {
582 ret_val = NULL;
583 } else {
584 dma_addr_t dma_addr;
585
586 ret_val = pci_alloc_consistent(ha->pdev, size, &dma_addr);
587 *paddr = dma_addr;
588 }
589
590 spin_unlock_irqrestore(&ha->smp_lock, flags);
591 return ret_val;
592}
593
594static void gdth_ioctl_free(gdth_ha_str *ha, int size, char *buf, u64 paddr)
595{
596 unsigned long flags;
597
598 if (buf == ha->pscratch) {
599 spin_lock_irqsave(&ha->smp_lock, flags);
600 ha->scratch_busy = FALSE;
601 spin_unlock_irqrestore(&ha->smp_lock, flags);
602 } else {
603 pci_free_consistent(ha->pdev, size, buf, paddr);
604 }
605}
606
607#ifdef GDTH_IOCTL_PROC
608static int gdth_ioctl_check_bin(gdth_ha_str *ha, u16 size)
609{
610 unsigned long flags;
611 int ret_val;
612
613 spin_lock_irqsave(&ha->smp_lock, flags);
614
615 ret_val = FALSE;
616 if (ha->scratch_busy) {
617 if (((gdth_iord_str *)ha->pscratch)->size == (u32)size)
618 ret_val = TRUE;
619 }
620 spin_unlock_irqrestore(&ha->smp_lock, flags);
621 return ret_val;
622}
623#endif
624
625static void gdth_wait_completion(gdth_ha_str *ha, int busnum, int id)
626{
627 unsigned long flags;
628 int i;
629 Scsi_Cmnd *scp;
630 struct gdth_cmndinfo *cmndinfo;
631 u8 b, t;
632
633 spin_lock_irqsave(&ha->smp_lock, flags);
634
635 for (i = 0; i < GDTH_MAXCMDS; ++i) {
636 scp = ha->cmd_tab[i].cmnd;
637 cmndinfo = gdth_cmnd_priv(scp);
638
639 b = scp->device->channel;
640 t = scp->device->id;
641 if (!SPECIAL_SCP(scp) && t == (u8)id &&
642 b == (u8)busnum) {
643 cmndinfo->wait_for_completion = 0;
644 spin_unlock_irqrestore(&ha->smp_lock, flags);
645 while (!cmndinfo->wait_for_completion)
646 barrier();
647 spin_lock_irqsave(&ha->smp_lock, flags);
648 }
649 }
650 spin_unlock_irqrestore(&ha->smp_lock, flags);
651}
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#include <linux/slab.h>
7
8int gdth_set_info(struct Scsi_Host *host, char *buffer, int length)
9{
10 gdth_ha_str *ha = shost_priv(host);
11 int ret_val = -EINVAL;
12
13 TRACE2(("gdth_set_info() ha %d\n",ha->hanum,));
14
15 if (length >= 4) {
16 if (strncmp(buffer,"gdth",4) == 0) {
17 buffer += 5;
18 length -= 5;
19 ret_val = gdth_set_asc_info(host, buffer, length, ha);
20 }
21 }
22
23 return ret_val;
24}
25
26static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer,
27 int length, gdth_ha_str *ha)
28{
29 int orig_length, drive, wb_mode;
30 int i, found;
31 gdth_cmd_str gdtcmd;
32 gdth_cpar_str *pcpar;
33 u64 paddr;
34
35 char cmnd[MAX_COMMAND_SIZE];
36 memset(cmnd, 0xff, 12);
37 memset(&gdtcmd, 0, sizeof(gdth_cmd_str));
38
39 TRACE2(("gdth_set_asc_info() ha %d\n",ha->hanum));
40 orig_length = length + 5;
41 drive = -1;
42 wb_mode = 0;
43 found = FALSE;
44
45 if (length >= 5 && strncmp(buffer,"flush",5)==0) {
46 buffer += 6;
47 length -= 6;
48 if (length && *buffer>='0' && *buffer<='9') {
49 drive = (int)(*buffer-'0');
50 ++buffer; --length;
51 if (length && *buffer>='0' && *buffer<='9') {
52 drive = drive*10 + (int)(*buffer-'0');
53 ++buffer; --length;
54 }
55 printk("GDT: Flushing host drive %d .. ",drive);
56 } else {
57 printk("GDT: Flushing all host drives .. ");
58 }
59 for (i = 0; i < MAX_HDRIVES; ++i) {
60 if (ha->hdr[i].present) {
61 if (drive != -1 && i != drive)
62 continue;
63 found = TRUE;
64 gdtcmd.Service = CACHESERVICE;
65 gdtcmd.OpCode = GDT_FLUSH;
66 if (ha->cache_feat & GDT_64BIT) {
67 gdtcmd.u.cache64.DeviceNo = i;
68 gdtcmd.u.cache64.BlockNo = 1;
69 } else {
70 gdtcmd.u.cache.DeviceNo = i;
71 gdtcmd.u.cache.BlockNo = 1;
72 }
73
74 gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
75 }
76 }
77 if (!found)
78 printk("\nNo host drive found !\n");
79 else
80 printk("Done.\n");
81 return(orig_length);
82 }
83
84 if (length >= 7 && strncmp(buffer,"wbp_off",7)==0) {
85 buffer += 8;
86 length -= 8;
87 printk("GDT: Disabling write back permanently .. ");
88 wb_mode = 1;
89 } else if (length >= 6 && strncmp(buffer,"wbp_on",6)==0) {
90 buffer += 7;
91 length -= 7;
92 printk("GDT: Enabling write back permanently .. ");
93 wb_mode = 2;
94 } else if (length >= 6 && strncmp(buffer,"wb_off",6)==0) {
95 buffer += 7;
96 length -= 7;
97 printk("GDT: Disabling write back commands .. ");
98 if (ha->cache_feat & GDT_WR_THROUGH) {
99 gdth_write_through = TRUE;
100 printk("Done.\n");
101 } else {
102 printk("Not supported !\n");
103 }
104 return(orig_length);
105 } else if (length >= 5 && strncmp(buffer,"wb_on",5)==0) {
106 buffer += 6;
107 length -= 6;
108 printk("GDT: Enabling write back commands .. ");
109 gdth_write_through = FALSE;
110 printk("Done.\n");
111 return(orig_length);
112 }
113
114 if (wb_mode) {
115 if (!gdth_ioctl_alloc(ha, sizeof(gdth_cpar_str), TRUE, &paddr))
116 return(-EBUSY);
117 pcpar = (gdth_cpar_str *)ha->pscratch;
118 memcpy( pcpar, &ha->cpar, sizeof(gdth_cpar_str) );
119 gdtcmd.Service = CACHESERVICE;
120 gdtcmd.OpCode = GDT_IOCTL;
121 gdtcmd.u.ioctl.p_param = paddr;
122 gdtcmd.u.ioctl.param_size = sizeof(gdth_cpar_str);
123 gdtcmd.u.ioctl.subfunc = CACHE_CONFIG;
124 gdtcmd.u.ioctl.channel = INVALID_CHANNEL;
125 pcpar->write_back = wb_mode==1 ? 0:1;
126
127 gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
128
129 gdth_ioctl_free(ha, GDTH_SCRATCH, ha->pscratch, paddr);
130 printk("Done.\n");
131 return(orig_length);
132 }
133
134 printk("GDT: Unknown command: %s Length: %d\n",buffer,length);
135 return(-EINVAL);
136}
137
138int gdth_show_info(struct seq_file *m, struct Scsi_Host *host)
139{
140 gdth_ha_str *ha = shost_priv(host);
141 int hlen;
142 int id, i, j, k, sec, flag;
143 int no_mdrv = 0, drv_no, is_mirr;
144 u32 cnt;
145 u64 paddr;
146 int rc = -ENOMEM;
147
148 gdth_cmd_str *gdtcmd;
149 gdth_evt_str *estr;
150 char hrec[161];
151
152 char *buf;
153 gdth_dskstat_str *pds;
154 gdth_diskinfo_str *pdi;
155 gdth_arrayinf_str *pai;
156 gdth_defcnt_str *pdef;
157 gdth_cdrinfo_str *pcdi;
158 gdth_hget_str *phg;
159 char cmnd[MAX_COMMAND_SIZE];
160
161 gdtcmd = kmalloc(sizeof(*gdtcmd), GFP_KERNEL);
162 estr = kmalloc(sizeof(*estr), GFP_KERNEL);
163 if (!gdtcmd || !estr)
164 goto free_fail;
165
166 memset(cmnd, 0xff, 12);
167 memset(gdtcmd, 0, sizeof(gdth_cmd_str));
168
169 TRACE2(("gdth_get_info() ha %d\n",ha->hanum));
170
171
172 /* request is i.e. "cat /proc/scsi/gdth/0" */
173 /* format: %-15s\t%-10s\t%-15s\t%s */
174 /* driver parameters */
175 seq_puts(m, "Driver Parameters:\n");
176 if (reserve_list[0] == 0xff)
177 strcpy(hrec, "--");
178 else {
179 hlen = sprintf(hrec, "%d", reserve_list[0]);
180 for (i = 1; i < MAX_RES_ARGS; i++) {
181 if (reserve_list[i] == 0xff)
182 break;
183 hlen += snprintf(hrec + hlen , 161 - hlen, ",%d", reserve_list[i]);
184 }
185 }
186 seq_printf(m,
187 " reserve_mode: \t%d \treserve_list: \t%s\n",
188 reserve_mode, hrec);
189 seq_printf(m,
190 " max_ids: \t%-3d \thdr_channel: \t%d\n",
191 max_ids, hdr_channel);
192
193 /* controller information */
194 seq_puts(m, "\nDisk Array Controller Information:\n");
195 seq_printf(m,
196 " Number: \t%d \tName: \t%s\n",
197 ha->hanum, ha->binfo.type_string);
198
199 seq_printf(m,
200 " Driver Ver.: \t%-10s\tFirmware Ver.: \t",
201 GDTH_VERSION_STR);
202 if (ha->more_proc)
203 seq_printf(m, "%d.%02d.%02d-%c%03X\n",
204 (u8)(ha->binfo.upd_fw_ver>>24),
205 (u8)(ha->binfo.upd_fw_ver>>16),
206 (u8)(ha->binfo.upd_fw_ver),
207 ha->bfeat.raid ? 'R':'N',
208 ha->binfo.upd_revision);
209 else
210 seq_printf(m, "%d.%02d\n", (u8)(ha->cpar.version>>8),
211 (u8)(ha->cpar.version));
212
213 if (ha->more_proc)
214 /* more information: 1. about controller */
215 seq_printf(m,
216 " Serial No.: \t0x%8X\tCache RAM size:\t%d KB\n",
217 ha->binfo.ser_no, ha->binfo.memsize / 1024);
218
219#ifdef GDTH_DMA_STATISTICS
220 /* controller statistics */
221 seq_puts(m, "\nController Statistics:\n");
222 seq_printf(m,
223 " 32-bit DMA buffer:\t%lu\t64-bit DMA buffer:\t%lu\n",
224 ha->dma32_cnt, ha->dma64_cnt);
225#endif
226
227 if (ha->more_proc) {
228 /* more information: 2. about physical devices */
229 seq_puts(m, "\nPhysical Devices:");
230 flag = FALSE;
231
232 buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
233 if (!buf)
234 goto stop_output;
235 for (i = 0; i < ha->bus_cnt; ++i) {
236 /* 2.a statistics (and retries/reassigns) */
237 TRACE2(("pdr_statistics() chn %d\n",i));
238 pds = (gdth_dskstat_str *)(buf + GDTH_SCRATCH/4);
239 gdtcmd->Service = CACHESERVICE;
240 gdtcmd->OpCode = GDT_IOCTL;
241 gdtcmd->u.ioctl.p_param = paddr + GDTH_SCRATCH/4;
242 gdtcmd->u.ioctl.param_size = 3*GDTH_SCRATCH/4;
243 gdtcmd->u.ioctl.subfunc = DSK_STATISTICS | L_CTRL_PATTERN;
244 gdtcmd->u.ioctl.channel = ha->raw[i].address | INVALID_CHANNEL;
245 pds->bid = ha->raw[i].local_no;
246 pds->first = 0;
247 pds->entries = ha->raw[i].pdev_cnt;
248 cnt = (3*GDTH_SCRATCH/4 - 5 * sizeof(u32)) /
249 sizeof(pds->list[0]);
250 if (pds->entries > cnt)
251 pds->entries = cnt;
252
253 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
254 pds->count = 0;
255
256 /* other IOCTLs must fit into area GDTH_SCRATCH/4 */
257 for (j = 0; j < ha->raw[i].pdev_cnt; ++j) {
258 /* 2.b drive info */
259 TRACE2(("scsi_drv_info() chn %d dev %d\n",
260 i, ha->raw[i].id_list[j]));
261 pdi = (gdth_diskinfo_str *)buf;
262 gdtcmd->Service = CACHESERVICE;
263 gdtcmd->OpCode = GDT_IOCTL;
264 gdtcmd->u.ioctl.p_param = paddr;
265 gdtcmd->u.ioctl.param_size = sizeof(gdth_diskinfo_str);
266 gdtcmd->u.ioctl.subfunc = SCSI_DR_INFO | L_CTRL_PATTERN;
267 gdtcmd->u.ioctl.channel =
268 ha->raw[i].address | ha->raw[i].id_list[j];
269
270 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
271 strncpy(hrec,pdi->vendor,8);
272 strncpy(hrec+8,pdi->product,16);
273 strncpy(hrec+24,pdi->revision,4);
274 hrec[28] = 0;
275 seq_printf(m,
276 "\n Chn/ID/LUN: \t%c/%02d/%d \tName: \t%s\n",
277 'A'+i,pdi->target_id,pdi->lun,hrec);
278 flag = TRUE;
279 pdi->no_ldrive &= 0xffff;
280 if (pdi->no_ldrive == 0xffff)
281 strcpy(hrec,"--");
282 else
283 sprintf(hrec,"%d",pdi->no_ldrive);
284 seq_printf(m,
285 " Capacity [MB]:\t%-6d \tTo Log. Drive: \t%s\n",
286 pdi->blkcnt/(1024*1024/pdi->blksize),
287 hrec);
288 } else {
289 pdi->devtype = 0xff;
290 }
291
292 if (pdi->devtype == 0) {
293 /* search retries/reassigns */
294 for (k = 0; k < pds->count; ++k) {
295 if (pds->list[k].tid == pdi->target_id &&
296 pds->list[k].lun == pdi->lun) {
297 seq_printf(m,
298 " Retries: \t%-6d \tReassigns: \t%d\n",
299 pds->list[k].retries,
300 pds->list[k].reassigns);
301 break;
302 }
303 }
304 /* 2.c grown defects */
305 TRACE2(("scsi_drv_defcnt() chn %d dev %d\n",
306 i, ha->raw[i].id_list[j]));
307 pdef = (gdth_defcnt_str *)buf;
308 gdtcmd->Service = CACHESERVICE;
309 gdtcmd->OpCode = GDT_IOCTL;
310 gdtcmd->u.ioctl.p_param = paddr;
311 gdtcmd->u.ioctl.param_size = sizeof(gdth_defcnt_str);
312 gdtcmd->u.ioctl.subfunc = SCSI_DEF_CNT | L_CTRL_PATTERN;
313 gdtcmd->u.ioctl.channel =
314 ha->raw[i].address | ha->raw[i].id_list[j];
315 pdef->sddc_type = 0x08;
316
317 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
318 seq_printf(m,
319 " Grown Defects:\t%d\n",
320 pdef->sddc_cnt);
321 }
322 }
323 }
324 }
325 gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
326
327 if (!flag)
328 seq_puts(m, "\n --\n");
329
330 /* 3. about logical drives */
331 seq_puts(m, "\nLogical Drives:");
332 flag = FALSE;
333
334 buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
335 if (!buf)
336 goto stop_output;
337 for (i = 0; i < MAX_LDRIVES; ++i) {
338 if (!ha->hdr[i].is_logdrv)
339 continue;
340 drv_no = i;
341 j = k = 0;
342 is_mirr = FALSE;
343 do {
344 /* 3.a log. drive info */
345 TRACE2(("cache_drv_info() drive no %d\n",drv_no));
346 pcdi = (gdth_cdrinfo_str *)buf;
347 gdtcmd->Service = CACHESERVICE;
348 gdtcmd->OpCode = GDT_IOCTL;
349 gdtcmd->u.ioctl.p_param = paddr;
350 gdtcmd->u.ioctl.param_size = sizeof(gdth_cdrinfo_str);
351 gdtcmd->u.ioctl.subfunc = CACHE_DRV_INFO;
352 gdtcmd->u.ioctl.channel = drv_no;
353 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
354 break;
355 pcdi->ld_dtype >>= 16;
356 j++;
357 if (pcdi->ld_dtype > 2) {
358 strcpy(hrec, "missing");
359 } else if (pcdi->ld_error & 1) {
360 strcpy(hrec, "fault");
361 } else if (pcdi->ld_error & 2) {
362 strcpy(hrec, "invalid");
363 k++; j--;
364 } else {
365 strcpy(hrec, "ok");
366 }
367
368 if (drv_no == i) {
369 seq_printf(m,
370 "\n Number: \t%-2d \tStatus: \t%s\n",
371 drv_no, hrec);
372 flag = TRUE;
373 no_mdrv = pcdi->cd_ldcnt;
374 if (no_mdrv > 1 || pcdi->ld_slave != -1) {
375 is_mirr = TRUE;
376 strcpy(hrec, "RAID-1");
377 } else if (pcdi->ld_dtype == 0) {
378 strcpy(hrec, "Disk");
379 } else if (pcdi->ld_dtype == 1) {
380 strcpy(hrec, "RAID-0");
381 } else if (pcdi->ld_dtype == 2) {
382 strcpy(hrec, "Chain");
383 } else {
384 strcpy(hrec, "???");
385 }
386 seq_printf(m,
387 " Capacity [MB]:\t%-6d \tType: \t%s\n",
388 pcdi->ld_blkcnt/(1024*1024/pcdi->ld_blksize),
389 hrec);
390 } else {
391 seq_printf(m,
392 " Slave Number: \t%-2d \tStatus: \t%s\n",
393 drv_no & 0x7fff, hrec);
394 }
395 drv_no = pcdi->ld_slave;
396 } while (drv_no != -1);
397
398 if (is_mirr)
399 seq_printf(m,
400 " Missing Drv.: \t%-2d \tInvalid Drv.: \t%d\n",
401 no_mdrv - j - k, k);
402
403 if (!ha->hdr[i].is_arraydrv)
404 strcpy(hrec, "--");
405 else
406 sprintf(hrec, "%d", ha->hdr[i].master_no);
407 seq_printf(m,
408 " To Array Drv.:\t%s\n", hrec);
409 }
410 gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
411
412 if (!flag)
413 seq_puts(m, "\n --\n");
414
415 /* 4. about array drives */
416 seq_puts(m, "\nArray Drives:");
417 flag = FALSE;
418
419 buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr);
420 if (!buf)
421 goto stop_output;
422 for (i = 0; i < MAX_LDRIVES; ++i) {
423 if (!(ha->hdr[i].is_arraydrv && ha->hdr[i].is_master))
424 continue;
425 /* 4.a array drive info */
426 TRACE2(("array_info() drive no %d\n",i));
427 pai = (gdth_arrayinf_str *)buf;
428 gdtcmd->Service = CACHESERVICE;
429 gdtcmd->OpCode = GDT_IOCTL;
430 gdtcmd->u.ioctl.p_param = paddr;
431 gdtcmd->u.ioctl.param_size = sizeof(gdth_arrayinf_str);
432 gdtcmd->u.ioctl.subfunc = ARRAY_INFO | LA_CTRL_PATTERN;
433 gdtcmd->u.ioctl.channel = i;
434 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
435 if (pai->ai_state == 0)
436 strcpy(hrec, "idle");
437 else if (pai->ai_state == 2)
438 strcpy(hrec, "build");
439 else if (pai->ai_state == 4)
440 strcpy(hrec, "ready");
441 else if (pai->ai_state == 6)
442 strcpy(hrec, "fail");
443 else if (pai->ai_state == 8 || pai->ai_state == 10)
444 strcpy(hrec, "rebuild");
445 else
446 strcpy(hrec, "error");
447 if (pai->ai_ext_state & 0x10)
448 strcat(hrec, "/expand");
449 else if (pai->ai_ext_state & 0x1)
450 strcat(hrec, "/patch");
451 seq_printf(m,
452 "\n Number: \t%-2d \tStatus: \t%s\n",
453 i,hrec);
454 flag = TRUE;
455
456 if (pai->ai_type == 0)
457 strcpy(hrec, "RAID-0");
458 else if (pai->ai_type == 4)
459 strcpy(hrec, "RAID-4");
460 else if (pai->ai_type == 5)
461 strcpy(hrec, "RAID-5");
462 else
463 strcpy(hrec, "RAID-10");
464 seq_printf(m,
465 " Capacity [MB]:\t%-6d \tType: \t%s\n",
466 pai->ai_size/(1024*1024/pai->ai_secsize),
467 hrec);
468 }
469 }
470 gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr);
471
472 if (!flag)
473 seq_puts(m, "\n --\n");
474
475 /* 5. about host drives */
476 seq_puts(m, "\nHost Drives:");
477 flag = FALSE;
478
479 buf = gdth_ioctl_alloc(ha, sizeof(gdth_hget_str), FALSE, &paddr);
480 if (!buf)
481 goto stop_output;
482 for (i = 0; i < MAX_LDRIVES; ++i) {
483 if (!ha->hdr[i].is_logdrv ||
484 (ha->hdr[i].is_arraydrv && !ha->hdr[i].is_master))
485 continue;
486 /* 5.a get host drive list */
487 TRACE2(("host_get() drv_no %d\n",i));
488 phg = (gdth_hget_str *)buf;
489 gdtcmd->Service = CACHESERVICE;
490 gdtcmd->OpCode = GDT_IOCTL;
491 gdtcmd->u.ioctl.p_param = paddr;
492 gdtcmd->u.ioctl.param_size = sizeof(gdth_hget_str);
493 gdtcmd->u.ioctl.subfunc = HOST_GET | LA_CTRL_PATTERN;
494 gdtcmd->u.ioctl.channel = i;
495 phg->entries = MAX_HDRIVES;
496 phg->offset = GDTOFFSOF(gdth_hget_str, entry[0]);
497 if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
498 ha->hdr[i].ldr_no = i;
499 ha->hdr[i].rw_attribs = 0;
500 ha->hdr[i].start_sec = 0;
501 } else {
502 for (j = 0; j < phg->entries; ++j) {
503 k = phg->entry[j].host_drive;
504 if (k >= MAX_LDRIVES)
505 continue;
506 ha->hdr[k].ldr_no = phg->entry[j].log_drive;
507 ha->hdr[k].rw_attribs = phg->entry[j].rw_attribs;
508 ha->hdr[k].start_sec = phg->entry[j].start_sec;
509 }
510 }
511 }
512 gdth_ioctl_free(ha, sizeof(gdth_hget_str), buf, paddr);
513
514 for (i = 0; i < MAX_HDRIVES; ++i) {
515 if (!(ha->hdr[i].present))
516 continue;
517
518 seq_printf(m,
519 "\n Number: \t%-2d \tArr/Log. Drive:\t%d\n",
520 i, ha->hdr[i].ldr_no);
521 flag = TRUE;
522
523 seq_printf(m,
524 " Capacity [MB]:\t%-6d \tStart Sector: \t%d\n",
525 (u32)(ha->hdr[i].size/2048), ha->hdr[i].start_sec);
526 }
527
528 if (!flag)
529 seq_puts(m, "\n --\n");
530 }
531
532 /* controller events */
533 seq_puts(m, "\nController Events:\n");
534
535 for (id = -1;;) {
536 id = gdth_read_event(ha, id, estr);
537 if (estr->event_source == 0)
538 break;
539 if (estr->event_data.eu.driver.ionode == ha->hanum &&
540 estr->event_source == ES_ASYNC) {
541 gdth_log_event(&estr->event_data, hrec);
542
543 /*
544 * Elapsed seconds subtraction with unsigned operands is
545 * safe from wrap around in year 2106. Executes as:
546 * operand a + (2's complement operand b) + 1
547 */
548
549 sec = (int)((u32)ktime_get_real_seconds() - estr->first_stamp);
550 if (sec < 0) sec = 0;
551 seq_printf(m," date- %02d:%02d:%02d\t%s\n",
552 sec/3600, sec%3600/60, sec%60, hrec);
553 }
554 if (id == -1)
555 break;
556 }
557stop_output:
558 rc = 0;
559free_fail:
560 kfree(gdtcmd);
561 kfree(estr);
562 return rc;
563}
564
565static char *gdth_ioctl_alloc(gdth_ha_str *ha, int size, int scratch,
566 u64 *paddr)
567{
568 unsigned long flags;
569 char *ret_val;
570
571 if (size == 0)
572 return NULL;
573
574 spin_lock_irqsave(&ha->smp_lock, flags);
575
576 if (!ha->scratch_busy && size <= GDTH_SCRATCH) {
577 ha->scratch_busy = TRUE;
578 ret_val = ha->pscratch;
579 *paddr = ha->scratch_phys;
580 } else if (scratch) {
581 ret_val = NULL;
582 } else {
583 dma_addr_t dma_addr;
584
585 ret_val = pci_alloc_consistent(ha->pdev, size, &dma_addr);
586 *paddr = dma_addr;
587 }
588
589 spin_unlock_irqrestore(&ha->smp_lock, flags);
590 return ret_val;
591}
592
593static void gdth_ioctl_free(gdth_ha_str *ha, int size, char *buf, u64 paddr)
594{
595 unsigned long flags;
596
597 if (buf == ha->pscratch) {
598 spin_lock_irqsave(&ha->smp_lock, flags);
599 ha->scratch_busy = FALSE;
600 spin_unlock_irqrestore(&ha->smp_lock, flags);
601 } else {
602 pci_free_consistent(ha->pdev, size, buf, paddr);
603 }
604}
605
606#ifdef GDTH_IOCTL_PROC
607static int gdth_ioctl_check_bin(gdth_ha_str *ha, u16 size)
608{
609 unsigned long flags;
610 int ret_val;
611
612 spin_lock_irqsave(&ha->smp_lock, flags);
613
614 ret_val = FALSE;
615 if (ha->scratch_busy) {
616 if (((gdth_iord_str *)ha->pscratch)->size == (u32)size)
617 ret_val = TRUE;
618 }
619 spin_unlock_irqrestore(&ha->smp_lock, flags);
620 return ret_val;
621}
622#endif
623
624static void gdth_wait_completion(gdth_ha_str *ha, int busnum, int id)
625{
626 unsigned long flags;
627 int i;
628 Scsi_Cmnd *scp;
629 struct gdth_cmndinfo *cmndinfo;
630 u8 b, t;
631
632 spin_lock_irqsave(&ha->smp_lock, flags);
633
634 for (i = 0; i < GDTH_MAXCMDS; ++i) {
635 scp = ha->cmd_tab[i].cmnd;
636 cmndinfo = gdth_cmnd_priv(scp);
637
638 b = scp->device->channel;
639 t = scp->device->id;
640 if (!SPECIAL_SCP(scp) && t == (u8)id &&
641 b == (u8)busnum) {
642 cmndinfo->wait_for_completion = 0;
643 spin_unlock_irqrestore(&ha->smp_lock, flags);
644 while (!cmndinfo->wait_for_completion)
645 barrier();
646 spin_lock_irqsave(&ha->smp_lock, flags);
647 }
648 }
649 spin_unlock_irqrestore(&ha->smp_lock, flags);
650}