]>
git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - drivers/scsi/gdth_proc.c
1 // SPDX-License-Identifier: GPL-2.0
3 * $Id: gdth_proc.c,v 1.43 2006/01/11 16:15:00 achim Exp $
6 #include <linux/completion.h>
7 #include <linux/slab.h>
9 int gdth_set_info(struct Scsi_Host
*host
, char *buffer
, int length
)
11 gdth_ha_str
*ha
= shost_priv(host
);
12 int ret_val
= -EINVAL
;
14 TRACE2(("gdth_set_info() ha %d\n",ha
->hanum
,));
17 if (strncmp(buffer
,"gdth",4) == 0) {
20 ret_val
= gdth_set_asc_info(host
, buffer
, length
, ha
);
27 static int gdth_set_asc_info(struct Scsi_Host
*host
, char *buffer
,
28 int length
, gdth_ha_str
*ha
)
30 int orig_length
, drive
, wb_mode
;
35 char cmnd
[MAX_COMMAND_SIZE
];
36 memset(cmnd
, 0xff, 12);
37 memset(&gdtcmd
, 0, sizeof(gdth_cmd_str
));
39 TRACE2(("gdth_set_asc_info() ha %d\n",ha
->hanum
));
40 orig_length
= length
+ 5;
45 if (length
>= 5 && strncmp(buffer
,"flush",5)==0) {
48 if (length
&& *buffer
>='0' && *buffer
<='9') {
49 drive
= (int)(*buffer
-'0');
51 if (length
&& *buffer
>='0' && *buffer
<='9') {
52 drive
= drive
*10 + (int)(*buffer
-'0');
55 printk("GDT: Flushing host drive %d .. ",drive
);
57 printk("GDT: Flushing all host drives .. ");
59 for (i
= 0; i
< MAX_HDRIVES
; ++i
) {
60 if (ha
->hdr
[i
].present
) {
61 if (drive
!= -1 && i
!= drive
)
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;
70 gdtcmd
.u
.cache
.DeviceNo
= i
;
71 gdtcmd
.u
.cache
.BlockNo
= 1;
74 gdth_execute(host
, &gdtcmd
, cmnd
, 30, NULL
);
78 printk("\nNo host drive found !\n");
84 if (length
>= 7 && strncmp(buffer
,"wbp_off",7)==0) {
87 printk("GDT: Disabling write back permanently .. ");
89 } else if (length
>= 6 && strncmp(buffer
,"wbp_on",6)==0) {
92 printk("GDT: Enabling write back permanently .. ");
94 } else if (length
>= 6 && strncmp(buffer
,"wb_off",6)==0) {
97 printk("GDT: Disabling write back commands .. ");
98 if (ha
->cache_feat
& GDT_WR_THROUGH
) {
99 gdth_write_through
= TRUE
;
102 printk("Not supported !\n");
105 } else if (length
>= 5 && strncmp(buffer
,"wb_on",5)==0) {
108 printk("GDT: Enabling write back commands .. ");
109 gdth_write_through
= FALSE
;
117 BUILD_BUG_ON(sizeof(gdth_cpar_str
) > GDTH_SCRATCH
);
119 spin_lock_irqsave(&ha
->smp_lock
, flags
);
120 if (ha
->scratch_busy
) {
121 spin_unlock_irqrestore(&ha
->smp_lock
, flags
);
124 ha
->scratch_busy
= TRUE
;
125 spin_unlock_irqrestore(&ha
->smp_lock
, flags
);
127 pcpar
= (gdth_cpar_str
*)ha
->pscratch
;
128 memcpy( pcpar
, &ha
->cpar
, sizeof(gdth_cpar_str
) );
129 gdtcmd
.Service
= CACHESERVICE
;
130 gdtcmd
.OpCode
= GDT_IOCTL
;
131 gdtcmd
.u
.ioctl
.p_param
= ha
->scratch_phys
;
132 gdtcmd
.u
.ioctl
.param_size
= sizeof(gdth_cpar_str
);
133 gdtcmd
.u
.ioctl
.subfunc
= CACHE_CONFIG
;
134 gdtcmd
.u
.ioctl
.channel
= INVALID_CHANNEL
;
135 pcpar
->write_back
= wb_mode
==1 ? 0:1;
137 gdth_execute(host
, &gdtcmd
, cmnd
, 30, NULL
);
139 spin_lock_irqsave(&ha
->smp_lock
, flags
);
140 ha
->scratch_busy
= FALSE
;
141 spin_unlock_irqrestore(&ha
->smp_lock
, flags
);
147 printk("GDT: Unknown command: %s Length: %d\n",buffer
,length
);
151 int gdth_show_info(struct seq_file
*m
, struct Scsi_Host
*host
)
153 gdth_ha_str
*ha
= shost_priv(host
);
155 int id
, i
, j
, k
, sec
, flag
;
156 int no_mdrv
= 0, drv_no
, is_mirr
;
161 gdth_cmd_str
*gdtcmd
;
166 gdth_dskstat_str
*pds
;
167 gdth_diskinfo_str
*pdi
;
168 gdth_arrayinf_str
*pai
;
169 gdth_defcnt_str
*pdef
;
170 gdth_cdrinfo_str
*pcdi
;
172 char cmnd
[MAX_COMMAND_SIZE
];
174 gdtcmd
= kmalloc(sizeof(*gdtcmd
), GFP_KERNEL
);
175 estr
= kmalloc(sizeof(*estr
), GFP_KERNEL
);
176 if (!gdtcmd
|| !estr
)
179 memset(cmnd
, 0xff, 12);
180 memset(gdtcmd
, 0, sizeof(gdth_cmd_str
));
182 TRACE2(("gdth_get_info() ha %d\n",ha
->hanum
));
185 /* request is i.e. "cat /proc/scsi/gdth/0" */
186 /* format: %-15s\t%-10s\t%-15s\t%s */
187 /* driver parameters */
188 seq_puts(m
, "Driver Parameters:\n");
189 if (reserve_list
[0] == 0xff)
192 hlen
= sprintf(hrec
, "%d", reserve_list
[0]);
193 for (i
= 1; i
< MAX_RES_ARGS
; i
++) {
194 if (reserve_list
[i
] == 0xff)
196 hlen
+= snprintf(hrec
+ hlen
, 161 - hlen
, ",%d", reserve_list
[i
]);
200 " reserve_mode: \t%d \treserve_list: \t%s\n",
203 " max_ids: \t%-3d \thdr_channel: \t%d\n",
204 max_ids
, hdr_channel
);
206 /* controller information */
207 seq_puts(m
, "\nDisk Array Controller Information:\n");
209 " Number: \t%d \tName: \t%s\n",
210 ha
->hanum
, ha
->binfo
.type_string
);
213 " Driver Ver.: \t%-10s\tFirmware Ver.: \t",
216 seq_printf(m
, "%d.%02d.%02d-%c%03X\n",
217 (u8
)(ha
->binfo
.upd_fw_ver
>>24),
218 (u8
)(ha
->binfo
.upd_fw_ver
>>16),
219 (u8
)(ha
->binfo
.upd_fw_ver
),
220 ha
->bfeat
.raid
? 'R':'N',
221 ha
->binfo
.upd_revision
);
223 seq_printf(m
, "%d.%02d\n", (u8
)(ha
->cpar
.version
>>8),
224 (u8
)(ha
->cpar
.version
));
227 /* more information: 1. about controller */
229 " Serial No.: \t0x%8X\tCache RAM size:\t%d KB\n",
230 ha
->binfo
.ser_no
, ha
->binfo
.memsize
/ 1024);
233 size_t size
= max_t(size_t, GDTH_SCRATCH
, sizeof(gdth_hget_str
));
235 /* more information: 2. about physical devices */
236 seq_puts(m
, "\nPhysical Devices:");
239 buf
= dma_alloc_coherent(&ha
->pdev
->dev
, size
, &paddr
, GFP_KERNEL
);
242 for (i
= 0; i
< ha
->bus_cnt
; ++i
) {
243 /* 2.a statistics (and retries/reassigns) */
244 TRACE2(("pdr_statistics() chn %d\n",i
));
245 pds
= (gdth_dskstat_str
*)(buf
+ GDTH_SCRATCH
/4);
246 gdtcmd
->Service
= CACHESERVICE
;
247 gdtcmd
->OpCode
= GDT_IOCTL
;
248 gdtcmd
->u
.ioctl
.p_param
= paddr
+ GDTH_SCRATCH
/4;
249 gdtcmd
->u
.ioctl
.param_size
= 3*GDTH_SCRATCH
/4;
250 gdtcmd
->u
.ioctl
.subfunc
= DSK_STATISTICS
| L_CTRL_PATTERN
;
251 gdtcmd
->u
.ioctl
.channel
= ha
->raw
[i
].address
| INVALID_CHANNEL
;
252 pds
->bid
= ha
->raw
[i
].local_no
;
254 pds
->entries
= ha
->raw
[i
].pdev_cnt
;
255 cnt
= (3*GDTH_SCRATCH
/4 - 5 * sizeof(u32
)) /
256 sizeof(pds
->list
[0]);
257 if (pds
->entries
> cnt
)
260 if (gdth_execute(host
, gdtcmd
, cmnd
, 30, NULL
) != S_OK
)
263 /* other IOCTLs must fit into area GDTH_SCRATCH/4 */
264 for (j
= 0; j
< ha
->raw
[i
].pdev_cnt
; ++j
) {
266 TRACE2(("scsi_drv_info() chn %d dev %d\n",
267 i
, ha
->raw
[i
].id_list
[j
]));
268 pdi
= (gdth_diskinfo_str
*)buf
;
269 gdtcmd
->Service
= CACHESERVICE
;
270 gdtcmd
->OpCode
= GDT_IOCTL
;
271 gdtcmd
->u
.ioctl
.p_param
= paddr
;
272 gdtcmd
->u
.ioctl
.param_size
= sizeof(gdth_diskinfo_str
);
273 gdtcmd
->u
.ioctl
.subfunc
= SCSI_DR_INFO
| L_CTRL_PATTERN
;
274 gdtcmd
->u
.ioctl
.channel
=
275 ha
->raw
[i
].address
| ha
->raw
[i
].id_list
[j
];
277 if (gdth_execute(host
, gdtcmd
, cmnd
, 30, NULL
) == S_OK
) {
278 strncpy(hrec
,pdi
->vendor
,8);
279 strncpy(hrec
+8,pdi
->product
,16);
280 strncpy(hrec
+24,pdi
->revision
,4);
283 "\n Chn/ID/LUN: \t%c/%02d/%d \tName: \t%s\n",
284 'A'+i
,pdi
->target_id
,pdi
->lun
,hrec
);
286 pdi
->no_ldrive
&= 0xffff;
287 if (pdi
->no_ldrive
== 0xffff)
290 sprintf(hrec
,"%d",pdi
->no_ldrive
);
292 " Capacity [MB]:\t%-6d \tTo Log. Drive: \t%s\n",
293 pdi
->blkcnt
/(1024*1024/pdi
->blksize
),
299 if (pdi
->devtype
== 0) {
300 /* search retries/reassigns */
301 for (k
= 0; k
< pds
->count
; ++k
) {
302 if (pds
->list
[k
].tid
== pdi
->target_id
&&
303 pds
->list
[k
].lun
== pdi
->lun
) {
305 " Retries: \t%-6d \tReassigns: \t%d\n",
306 pds
->list
[k
].retries
,
307 pds
->list
[k
].reassigns
);
311 /* 2.c grown defects */
312 TRACE2(("scsi_drv_defcnt() chn %d dev %d\n",
313 i
, ha
->raw
[i
].id_list
[j
]));
314 pdef
= (gdth_defcnt_str
*)buf
;
315 gdtcmd
->Service
= CACHESERVICE
;
316 gdtcmd
->OpCode
= GDT_IOCTL
;
317 gdtcmd
->u
.ioctl
.p_param
= paddr
;
318 gdtcmd
->u
.ioctl
.param_size
= sizeof(gdth_defcnt_str
);
319 gdtcmd
->u
.ioctl
.subfunc
= SCSI_DEF_CNT
| L_CTRL_PATTERN
;
320 gdtcmd
->u
.ioctl
.channel
=
321 ha
->raw
[i
].address
| ha
->raw
[i
].id_list
[j
];
322 pdef
->sddc_type
= 0x08;
324 if (gdth_execute(host
, gdtcmd
, cmnd
, 30, NULL
) == S_OK
) {
326 " Grown Defects:\t%d\n",
334 seq_puts(m
, "\n --\n");
336 /* 3. about logical drives */
337 seq_puts(m
, "\nLogical Drives:");
340 for (i
= 0; i
< MAX_LDRIVES
; ++i
) {
341 if (!ha
->hdr
[i
].is_logdrv
)
347 /* 3.a log. drive info */
348 TRACE2(("cache_drv_info() drive no %d\n",drv_no
));
349 pcdi
= (gdth_cdrinfo_str
*)buf
;
350 gdtcmd
->Service
= CACHESERVICE
;
351 gdtcmd
->OpCode
= GDT_IOCTL
;
352 gdtcmd
->u
.ioctl
.p_param
= paddr
;
353 gdtcmd
->u
.ioctl
.param_size
= sizeof(gdth_cdrinfo_str
);
354 gdtcmd
->u
.ioctl
.subfunc
= CACHE_DRV_INFO
;
355 gdtcmd
->u
.ioctl
.channel
= drv_no
;
356 if (gdth_execute(host
, gdtcmd
, cmnd
, 30, NULL
) != S_OK
)
358 pcdi
->ld_dtype
>>= 16;
360 if (pcdi
->ld_dtype
> 2) {
361 strcpy(hrec
, "missing");
362 } else if (pcdi
->ld_error
& 1) {
363 strcpy(hrec
, "fault");
364 } else if (pcdi
->ld_error
& 2) {
365 strcpy(hrec
, "invalid");
373 "\n Number: \t%-2d \tStatus: \t%s\n",
376 no_mdrv
= pcdi
->cd_ldcnt
;
377 if (no_mdrv
> 1 || pcdi
->ld_slave
!= -1) {
379 strcpy(hrec
, "RAID-1");
380 } else if (pcdi
->ld_dtype
== 0) {
381 strcpy(hrec
, "Disk");
382 } else if (pcdi
->ld_dtype
== 1) {
383 strcpy(hrec
, "RAID-0");
384 } else if (pcdi
->ld_dtype
== 2) {
385 strcpy(hrec
, "Chain");
390 " Capacity [MB]:\t%-6d \tType: \t%s\n",
391 pcdi
->ld_blkcnt
/(1024*1024/pcdi
->ld_blksize
),
395 " Slave Number: \t%-2d \tStatus: \t%s\n",
396 drv_no
& 0x7fff, hrec
);
398 drv_no
= pcdi
->ld_slave
;
399 } while (drv_no
!= -1);
403 " Missing Drv.: \t%-2d \tInvalid Drv.: \t%d\n",
406 if (!ha
->hdr
[i
].is_arraydrv
)
409 sprintf(hrec
, "%d", ha
->hdr
[i
].master_no
);
411 " To Array Drv.:\t%s\n", hrec
);
415 seq_puts(m
, "\n --\n");
417 /* 4. about array drives */
418 seq_puts(m
, "\nArray Drives:");
421 for (i
= 0; i
< MAX_LDRIVES
; ++i
) {
422 if (!(ha
->hdr
[i
].is_arraydrv
&& ha
->hdr
[i
].is_master
))
424 /* 4.a array drive info */
425 TRACE2(("array_info() drive no %d\n",i
));
426 pai
= (gdth_arrayinf_str
*)buf
;
427 gdtcmd
->Service
= CACHESERVICE
;
428 gdtcmd
->OpCode
= GDT_IOCTL
;
429 gdtcmd
->u
.ioctl
.p_param
= paddr
;
430 gdtcmd
->u
.ioctl
.param_size
= sizeof(gdth_arrayinf_str
);
431 gdtcmd
->u
.ioctl
.subfunc
= ARRAY_INFO
| LA_CTRL_PATTERN
;
432 gdtcmd
->u
.ioctl
.channel
= i
;
433 if (gdth_execute(host
, gdtcmd
, cmnd
, 30, NULL
) == S_OK
) {
434 if (pai
->ai_state
== 0)
435 strcpy(hrec
, "idle");
436 else if (pai
->ai_state
== 2)
437 strcpy(hrec
, "build");
438 else if (pai
->ai_state
== 4)
439 strcpy(hrec
, "ready");
440 else if (pai
->ai_state
== 6)
441 strcpy(hrec
, "fail");
442 else if (pai
->ai_state
== 8 || pai
->ai_state
== 10)
443 strcpy(hrec
, "rebuild");
445 strcpy(hrec
, "error");
446 if (pai
->ai_ext_state
& 0x10)
447 strcat(hrec
, "/expand");
448 else if (pai
->ai_ext_state
& 0x1)
449 strcat(hrec
, "/patch");
451 "\n Number: \t%-2d \tStatus: \t%s\n",
455 if (pai
->ai_type
== 0)
456 strcpy(hrec
, "RAID-0");
457 else if (pai
->ai_type
== 4)
458 strcpy(hrec
, "RAID-4");
459 else if (pai
->ai_type
== 5)
460 strcpy(hrec
, "RAID-5");
462 strcpy(hrec
, "RAID-10");
464 " Capacity [MB]:\t%-6d \tType: \t%s\n",
465 pai
->ai_size
/(1024*1024/pai
->ai_secsize
),
471 seq_puts(m
, "\n --\n");
473 /* 5. about host drives */
474 seq_puts(m
, "\nHost Drives:");
477 for (i
= 0; i
< MAX_LDRIVES
; ++i
) {
478 if (!ha
->hdr
[i
].is_logdrv
||
479 (ha
->hdr
[i
].is_arraydrv
&& !ha
->hdr
[i
].is_master
))
481 /* 5.a get host drive list */
482 TRACE2(("host_get() drv_no %d\n",i
));
483 phg
= (gdth_hget_str
*)buf
;
484 gdtcmd
->Service
= CACHESERVICE
;
485 gdtcmd
->OpCode
= GDT_IOCTL
;
486 gdtcmd
->u
.ioctl
.p_param
= paddr
;
487 gdtcmd
->u
.ioctl
.param_size
= sizeof(gdth_hget_str
);
488 gdtcmd
->u
.ioctl
.subfunc
= HOST_GET
| LA_CTRL_PATTERN
;
489 gdtcmd
->u
.ioctl
.channel
= i
;
490 phg
->entries
= MAX_HDRIVES
;
491 phg
->offset
= GDTOFFSOF(gdth_hget_str
, entry
[0]);
492 if (gdth_execute(host
, gdtcmd
, cmnd
, 30, NULL
) == S_OK
) {
493 ha
->hdr
[i
].ldr_no
= i
;
494 ha
->hdr
[i
].rw_attribs
= 0;
495 ha
->hdr
[i
].start_sec
= 0;
497 for (j
= 0; j
< phg
->entries
; ++j
) {
498 k
= phg
->entry
[j
].host_drive
;
499 if (k
>= MAX_LDRIVES
)
501 ha
->hdr
[k
].ldr_no
= phg
->entry
[j
].log_drive
;
502 ha
->hdr
[k
].rw_attribs
= phg
->entry
[j
].rw_attribs
;
503 ha
->hdr
[k
].start_sec
= phg
->entry
[j
].start_sec
;
507 dma_free_coherent(&ha
->pdev
->dev
, size
, buf
, paddr
);
509 for (i
= 0; i
< MAX_HDRIVES
; ++i
) {
510 if (!(ha
->hdr
[i
].present
))
514 "\n Number: \t%-2d \tArr/Log. Drive:\t%d\n",
515 i
, ha
->hdr
[i
].ldr_no
);
519 " Capacity [MB]:\t%-6d \tStart Sector: \t%d\n",
520 (u32
)(ha
->hdr
[i
].size
/2048), ha
->hdr
[i
].start_sec
);
524 seq_puts(m
, "\n --\n");
527 /* controller events */
528 seq_puts(m
, "\nController Events:\n");
531 id
= gdth_read_event(ha
, id
, estr
);
532 if (estr
->event_source
== 0)
534 if (estr
->event_data
.eu
.driver
.ionode
== ha
->hanum
&&
535 estr
->event_source
== ES_ASYNC
) {
536 gdth_log_event(&estr
->event_data
, hrec
);
539 * Elapsed seconds subtraction with unsigned operands is
540 * safe from wrap around in year 2106. Executes as:
541 * operand a + (2's complement operand b) + 1
544 sec
= (int)((u32
)ktime_get_real_seconds() - estr
->first_stamp
);
545 if (sec
< 0) sec
= 0;
546 seq_printf(m
," date- %02d:%02d:%02d\t%s\n",
547 sec
/3600, sec
%3600/60, sec
%60, hrec
);
560 static void gdth_wait_completion(gdth_ha_str
*ha
, int busnum
, int id
)
564 struct scsi_cmnd
*scp
;
565 struct gdth_cmndinfo
*cmndinfo
;
568 spin_lock_irqsave(&ha
->smp_lock
, flags
);
570 for (i
= 0; i
< GDTH_MAXCMDS
; ++i
) {
571 scp
= ha
->cmd_tab
[i
].cmnd
;
572 cmndinfo
= gdth_cmnd_priv(scp
);
574 b
= scp
->device
->channel
;
576 if (!SPECIAL_SCP(scp
) && t
== (u8
)id
&&
578 cmndinfo
->wait_for_completion
= 0;
579 spin_unlock_irqrestore(&ha
->smp_lock
, flags
);
580 while (!cmndinfo
->wait_for_completion
)
582 spin_lock_irqsave(&ha
->smp_lock
, flags
);
585 spin_unlock_irqrestore(&ha
->smp_lock
, flags
);