Blame view
drivers/block/cciss_scsi.c
48.2 KB
1da177e4c Linux-2.6.12-rc2 |
1 |
/* |
bd4f36d6d cciss: update cop... |
2 3 |
* Disk Array driver for HP Smart Array controllers, SCSI Tape module. * (C) Copyright 2001, 2007 Hewlett-Packard Development Company, L.P. |
1da177e4c Linux-2.6.12-rc2 |
4 5 6 |
* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by |
bd4f36d6d cciss: update cop... |
7 |
* the Free Software Foundation; version 2 of the License. |
1da177e4c Linux-2.6.12-rc2 |
8 9 10 |
* * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of |
bd4f36d6d cciss: update cop... |
11 12 |
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. |
1da177e4c Linux-2.6.12-rc2 |
13 14 15 |
* * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software |
bd4f36d6d cciss: update cop... |
16 17 |
* Foundation, Inc., 59 Temple Place, Suite 300, Boston, MA * 02111-1307, USA. |
1da177e4c Linux-2.6.12-rc2 |
18 19 20 21 22 23 24 25 26 27 28 29 |
* * Questions/Comments/Bugfixes to iss_storagedev@hp.com * * Author: Stephen M. Cameron */ #ifdef CONFIG_CISS_SCSI_TAPE /* Here we have code to present the driver as a scsi driver as it is simultaneously presented as a block driver. The reason for doing this is to allow access to SCSI tape drives through the array controller. Note in particular, neither physical nor logical disks are presented through the scsi layer. */ |
4e57b6817 [PATCH] fix missi... |
30 31 32 33 |
#include <linux/timer.h> #include <linux/completion.h> #include <linux/slab.h> #include <linux/string.h> |
60063497a atomic: use <linu... |
34 |
#include <linux/atomic.h> |
4e57b6817 [PATCH] fix missi... |
35 |
|
1da177e4c Linux-2.6.12-rc2 |
36 37 38 |
#include <scsi/scsi_cmnd.h> #include <scsi/scsi_device.h> #include <scsi/scsi_host.h> |
1da177e4c Linux-2.6.12-rc2 |
39 40 |
#include "cciss_scsi.h" |
3da8b713d [SCSI] cciss: scs... |
41 42 |
#define CCISS_ABORT_MSG 0x00 #define CCISS_RESET_MSG 0x01 |
f70dba836 cciss: use consis... |
43 |
static int fill_cmd(ctlr_info_t *h, CommandList_struct *c, __u8 cmd, void *buff, |
88f627ae3 cciss: fix SCSI d... |
44 |
size_t size, |
b57695fe1 cciss: simplify i... |
45 |
__u8 page_code, unsigned char *scsi3addr, |
88f627ae3 cciss: fix SCSI d... |
46 |
int cmd_type); |
6b4d96b87 cciss: separate c... |
47 48 49 50 |
static CommandList_struct *cmd_alloc(ctlr_info_t *h); static CommandList_struct *cmd_special_alloc(ctlr_info_t *h); static void cmd_free(ctlr_info_t *h, CommandList_struct *c); static void cmd_special_free(ctlr_info_t *h, CommandList_struct *c); |
1da177e4c Linux-2.6.12-rc2 |
51 52 53 54 55 56 57 58 |
static int cciss_scsi_proc_info( struct Scsi_Host *sh, char *buffer, /* data buffer */ char **start, /* where data in buffer starts */ off_t offset, /* offset from start of imaginary file */ int length, /* length of data in buffer */ int func); /* 0 == read, 1 == write */ |
f281233d3 SCSI host lock pu... |
59 60 |
static int cciss_scsi_queue_command (struct Scsi_Host *h, struct scsi_cmnd *cmd); |
3da8b713d [SCSI] cciss: scs... |
61 62 |
static int cciss_eh_device_reset_handler(struct scsi_cmnd *); static int cciss_eh_abort_handler(struct scsi_cmnd *); |
1da177e4c Linux-2.6.12-rc2 |
63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 |
static struct cciss_scsi_hba_t ccissscsi[MAX_CTLR] = { { .name = "cciss0", .ndevices = 0 }, { .name = "cciss1", .ndevices = 0 }, { .name = "cciss2", .ndevices = 0 }, { .name = "cciss3", .ndevices = 0 }, { .name = "cciss4", .ndevices = 0 }, { .name = "cciss5", .ndevices = 0 }, { .name = "cciss6", .ndevices = 0 }, { .name = "cciss7", .ndevices = 0 }, }; static struct scsi_host_template cciss_driver_template = { .module = THIS_MODULE, .name = "cciss", .proc_name = "cciss", .proc_info = cciss_scsi_proc_info, .queuecommand = cciss_scsi_queue_command, |
1da177e4c Linux-2.6.12-rc2 |
81 |
.this_id = 7, |
1da177e4c Linux-2.6.12-rc2 |
82 83 |
.cmd_per_lun = 1, .use_clustering = DISABLE_CLUSTERING, |
3da8b713d [SCSI] cciss: scs... |
84 85 86 |
/* Can't have eh_bus_reset_handler or eh_host_reset_handler for cciss */ .eh_device_reset_handler= cciss_eh_device_reset_handler, .eh_abort_handler = cciss_eh_abort_handler, |
1da177e4c Linux-2.6.12-rc2 |
87 88 89 |
}; #pragma pack(1) |
1b7d0d28a cciss: detect bad... |
90 |
|
5e216153c cciss: add perfor... |
91 92 |
#define SCSI_PAD_32 8 #define SCSI_PAD_64 8 |
1b7d0d28a cciss: detect bad... |
93 |
|
1da177e4c Linux-2.6.12-rc2 |
94 95 96 97 |
struct cciss_scsi_cmd_stack_elem_t { CommandList_struct cmd; ErrorInfo_struct Err; __u32 busaddr; |
87c3a922a cciss: Fix proble... |
98 |
int cmdindex; |
1b7d0d28a cciss: detect bad... |
99 |
u8 pad[IS_32_BIT * SCSI_PAD_32 + IS_64_BIT * SCSI_PAD_64]; |
1da177e4c Linux-2.6.12-rc2 |
100 101 102 |
}; #pragma pack() |
1da177e4c Linux-2.6.12-rc2 |
103 104 105 |
#pragma pack(1) struct cciss_scsi_cmd_stack_t { struct cciss_scsi_cmd_stack_elem_t *pool; |
8a4ec67bd cciss: add cciss_... |
106 |
struct cciss_scsi_cmd_stack_elem_t **elem; |
1da177e4c Linux-2.6.12-rc2 |
107 108 |
dma_addr_t cmd_pool_handle; int top; |
8a4ec67bd cciss: add cciss_... |
109 |
int nelems; |
1da177e4c Linux-2.6.12-rc2 |
110 111 112 113 114 115 |
}; #pragma pack() struct cciss_scsi_adapter_data_t { struct Scsi_Host *scsi_host; struct cciss_scsi_cmd_stack_t cmd_stack; |
87c3a922a cciss: Fix proble... |
116 |
SGDescriptor_struct **cmd_sg_list; |
1da177e4c Linux-2.6.12-rc2 |
117 118 119 |
int registered; spinlock_t lock; // to protect ccissscsi[ctlr]; }; |
f70dba836 cciss: use consis... |
120 121 122 123 |
#define CPQ_TAPE_LOCK(h, flags) spin_lock_irqsave( \ &h->scsi_ctlr->lock, flags); #define CPQ_TAPE_UNLOCK(h, flags) spin_unlock_irqrestore( \ &h->scsi_ctlr->lock, flags); |
1da177e4c Linux-2.6.12-rc2 |
124 125 126 127 128 |
static CommandList_struct * scsi_cmd_alloc(ctlr_info_t *h) { /* assume only one process in here at a time, locking done by caller. */ |
f70dba836 cciss: use consis... |
129 |
/* use h->lock */ |
1da177e4c Linux-2.6.12-rc2 |
130 131 132 133 134 135 136 137 |
/* might be better to rewrite how we allocate scsi commands in a way that */ /* needs no locking at all. */ /* take the top memory chunk off the stack and return it, if any. */ struct cciss_scsi_cmd_stack_elem_t *c; struct cciss_scsi_adapter_data_t *sa; struct cciss_scsi_cmd_stack_t *stk; u64bit temp64; |
aad9fb6f2 cciss: do not use... |
138 |
sa = h->scsi_ctlr; |
1da177e4c Linux-2.6.12-rc2 |
139 140 141 142 143 144 145 146 147 148 |
stk = &sa->cmd_stack; if (stk->top < 0) return NULL; c = stk->elem[stk->top]; /* memset(c, 0, sizeof(*c)); */ memset(&c->cmd, 0, sizeof(c->cmd)); memset(&c->Err, 0, sizeof(c->Err)); /* set physical addr of cmd and addr of scsi parameters */ c->cmd.busaddr = c->busaddr; |
87c3a922a cciss: Fix proble... |
149 |
c->cmd.cmdindex = c->cmdindex; |
1da177e4c Linux-2.6.12-rc2 |
150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 |
/* (__u32) (stk->cmd_pool_handle + (sizeof(struct cciss_scsi_cmd_stack_elem_t)*stk->top)); */ temp64.val = (__u64) (c->busaddr + sizeof(CommandList_struct)); /* (__u64) (stk->cmd_pool_handle + (sizeof(struct cciss_scsi_cmd_stack_elem_t)*stk->top) + sizeof(CommandList_struct)); */ stk->top--; c->cmd.ErrDesc.Addr.lower = temp64.val32.lower; c->cmd.ErrDesc.Addr.upper = temp64.val32.upper; c->cmd.ErrDesc.Len = sizeof(ErrorInfo_struct); c->cmd.ctlr = h->ctlr; c->cmd.err_info = &c->Err; return (CommandList_struct *) c; } static void |
f70dba836 cciss: use consis... |
169 |
scsi_cmd_free(ctlr_info_t *h, CommandList_struct *c) |
1da177e4c Linux-2.6.12-rc2 |
170 171 |
{ /* assume only one process in here at a time, locking done by caller. */ |
f70dba836 cciss: use consis... |
172 |
/* use h->lock */ |
1da177e4c Linux-2.6.12-rc2 |
173 174 175 176 |
/* drop the free memory chunk on top of the stack. */ struct cciss_scsi_adapter_data_t *sa; struct cciss_scsi_cmd_stack_t *stk; |
aad9fb6f2 cciss: do not use... |
177 |
sa = h->scsi_ctlr; |
1da177e4c Linux-2.6.12-rc2 |
178 |
stk = &sa->cmd_stack; |
713b68649 cciss: call BUG()... |
179 |
stk->top++; |
8a4ec67bd cciss: add cciss_... |
180 |
if (stk->top >= stk->nelems) { |
b2a4a43db cciss: change pri... |
181 182 183 |
dev_err(&h->pdev->dev, "scsi_cmd_free called too many times. "); |
1da177e4c Linux-2.6.12-rc2 |
184 185 |
BUG(); } |
f70dba836 cciss: use consis... |
186 |
stk->elem[stk->top] = (struct cciss_scsi_cmd_stack_elem_t *) c; |
1da177e4c Linux-2.6.12-rc2 |
187 188 189 |
} static int |
f70dba836 cciss: use consis... |
190 |
scsi_cmd_stack_setup(ctlr_info_t *h, struct cciss_scsi_adapter_data_t *sa) |
1da177e4c Linux-2.6.12-rc2 |
191 192 193 194 |
{ int i; struct cciss_scsi_cmd_stack_t *stk; size_t size; |
8a4ec67bd cciss: add cciss_... |
195 196 |
stk = &sa->cmd_stack; stk->nelems = cciss_tape_cmds + 2; |
f70dba836 cciss: use consis... |
197 |
sa->cmd_sg_list = cciss_allocate_sg_chain_blocks(h, |
8a4ec67bd cciss: add cciss_... |
198 |
h->chainsize, stk->nelems); |
f70dba836 cciss: use consis... |
199 |
if (!sa->cmd_sg_list && h->chainsize > 0) |
87c3a922a cciss: Fix proble... |
200 |
return -ENOMEM; |
8a4ec67bd cciss: add cciss_... |
201 |
size = sizeof(struct cciss_scsi_cmd_stack_elem_t) * stk->nelems; |
1da177e4c Linux-2.6.12-rc2 |
202 |
|
1b7d0d28a cciss: detect bad... |
203 204 205 |
/* Check alignment, see cciss_cmd.h near CommandList_struct def. */ BUILD_BUG_ON((sizeof(*stk->pool) % COMMANDLIST_ALIGNMENT) != 0); /* pci_alloc_consistent guarantees 32-bit DMA address will be used */ |
1da177e4c Linux-2.6.12-rc2 |
206 |
stk->pool = (struct cciss_scsi_cmd_stack_elem_t *) |
f70dba836 cciss: use consis... |
207 |
pci_alloc_consistent(h->pdev, size, &stk->cmd_pool_handle); |
1da177e4c Linux-2.6.12-rc2 |
208 209 |
if (stk->pool == NULL) { |
8a4ec67bd cciss: add cciss_... |
210 |
cciss_free_sg_chain_blocks(sa->cmd_sg_list, stk->nelems); |
87c3a922a cciss: Fix proble... |
211 212 |
sa->cmd_sg_list = NULL; return -ENOMEM; |
1da177e4c Linux-2.6.12-rc2 |
213 |
} |
8a4ec67bd cciss: add cciss_... |
214 215 216 217 218 219 220 |
stk->elem = kmalloc(sizeof(stk->elem[0]) * stk->nelems, GFP_KERNEL); if (!stk->elem) { pci_free_consistent(h->pdev, size, stk->pool, stk->cmd_pool_handle); return -1; } for (i = 0; i < stk->nelems; i++) { |
1da177e4c Linux-2.6.12-rc2 |
221 222 223 |
stk->elem[i] = &stk->pool[i]; stk->elem[i]->busaddr = (__u32) (stk->cmd_pool_handle + (sizeof(struct cciss_scsi_cmd_stack_elem_t) * i)); |
87c3a922a cciss: Fix proble... |
224 |
stk->elem[i]->cmdindex = i; |
1da177e4c Linux-2.6.12-rc2 |
225 |
} |
8a4ec67bd cciss: add cciss_... |
226 |
stk->top = stk->nelems-1; |
1da177e4c Linux-2.6.12-rc2 |
227 228 229 230 |
return 0; } static void |
f70dba836 cciss: use consis... |
231 |
scsi_cmd_stack_free(ctlr_info_t *h) |
1da177e4c Linux-2.6.12-rc2 |
232 233 234 235 |
{ struct cciss_scsi_adapter_data_t *sa; struct cciss_scsi_cmd_stack_t *stk; size_t size; |
f70dba836 cciss: use consis... |
236 |
sa = h->scsi_ctlr; |
1da177e4c Linux-2.6.12-rc2 |
237 |
stk = &sa->cmd_stack; |
8a4ec67bd cciss: add cciss_... |
238 |
if (stk->top != stk->nelems-1) { |
b2a4a43db cciss: change pri... |
239 240 241 |
dev_warn(&h->pdev->dev, "bug: %d scsi commands are still outstanding. ", |
8a4ec67bd cciss: add cciss_... |
242 |
stk->nelems - stk->top); |
1da177e4c Linux-2.6.12-rc2 |
243 |
} |
8a4ec67bd cciss: add cciss_... |
244 |
size = sizeof(struct cciss_scsi_cmd_stack_elem_t) * stk->nelems; |
1da177e4c Linux-2.6.12-rc2 |
245 |
|
f70dba836 cciss: use consis... |
246 |
pci_free_consistent(h->pdev, size, stk->pool, stk->cmd_pool_handle); |
1da177e4c Linux-2.6.12-rc2 |
247 |
stk->pool = NULL; |
8a4ec67bd cciss: add cciss_... |
248 249 250 |
cciss_free_sg_chain_blocks(sa->cmd_sg_list, stk->nelems); kfree(stk->elem); stk->elem = NULL; |
1da177e4c Linux-2.6.12-rc2 |
251 |
} |
400bb2369 [PATCH] cciss_scs... |
252 |
#if 0 |
1da177e4c Linux-2.6.12-rc2 |
253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 |
static int xmargin=8; static int amargin=60; static void print_bytes (unsigned char *c, int len, int hex, int ascii) { int i; unsigned char *x; if (hex) { x = c; for (i=0;i<len;i++) { if ((i % xmargin) == 0 && i>0) printk(" "); if ((i % xmargin) == 0) printk("0x%04x:", i); printk(" %02x", *x); x++; } printk(" "); } if (ascii) { x = c; for (i=0;i<len;i++) { if ((i % amargin) == 0 && i>0) printk(" "); if ((i % amargin) == 0) printk("0x%04x:", i); if (*x > 26 && *x < 128) printk("%c", *x); else printk("."); x++; } printk(" "); } } static void print_cmd(CommandList_struct *cp) { printk("queue:%d ", cp->Header.ReplyQueue); printk("sglist:%d ", cp->Header.SGList); printk("sgtot:%d ", cp->Header.SGTotal); printk("Tag:0x%08x/0x%08x ", cp->Header.Tag.upper, cp->Header.Tag.lower); printk("LUN:0x%02x%02x%02x%02x%02x%02x%02x%02x ", cp->Header.LUN.LunAddrBytes[0], cp->Header.LUN.LunAddrBytes[1], cp->Header.LUN.LunAddrBytes[2], cp->Header.LUN.LunAddrBytes[3], cp->Header.LUN.LunAddrBytes[4], cp->Header.LUN.LunAddrBytes[5], cp->Header.LUN.LunAddrBytes[6], cp->Header.LUN.LunAddrBytes[7]); printk("CDBLen:%d ", cp->Request.CDBLen); printk("Type:%d ",cp->Request.Type.Type); printk("Attr:%d ",cp->Request.Type.Attribute); printk(" Dir:%d ",cp->Request.Type.Direction); printk("Timeout:%d ",cp->Request.Timeout); printk( "CDB: %02x %02x %02x %02x %02x %02x %02x %02x" " %02x %02x %02x %02x %02x %02x %02x %02x ", cp->Request.CDB[0], cp->Request.CDB[1], cp->Request.CDB[2], cp->Request.CDB[3], cp->Request.CDB[4], cp->Request.CDB[5], cp->Request.CDB[6], cp->Request.CDB[7], cp->Request.CDB[8], cp->Request.CDB[9], cp->Request.CDB[10], cp->Request.CDB[11], cp->Request.CDB[12], cp->Request.CDB[13], cp->Request.CDB[14], cp->Request.CDB[15]), printk("edesc.Addr: 0x%08x/0%08x, Len = %d ", cp->ErrDesc.Addr.upper, cp->ErrDesc.Addr.lower, cp->ErrDesc.Len); printk("sgs..........Errorinfo: "); printk("scsistatus:%d ", cp->err_info->ScsiStatus); printk("senselen:%d ", cp->err_info->SenseLen); printk("cmd status:%d ", cp->err_info->CommandStatus); printk("resid cnt:%d ", cp->err_info->ResidualCnt); printk("offense size:%d ", cp->err_info->MoreErrInfo.Invalid_Cmd.offense_size); printk("offense byte:%d ", cp->err_info->MoreErrInfo.Invalid_Cmd.offense_num); printk("offense value:%d ", cp->err_info->MoreErrInfo.Invalid_Cmd.offense_value); } #endif static int |
f70dba836 cciss: use consis... |
363 |
find_bus_target_lun(ctlr_info_t *h, int *bus, int *target, int *lun) |
1da177e4c Linux-2.6.12-rc2 |
364 365 |
{ /* finds an unused bus, target, lun for a new device */ |
f70dba836 cciss: use consis... |
366 |
/* assumes h->scsi_ctlr->lock is held */ |
1da177e4c Linux-2.6.12-rc2 |
367 368 369 370 371 372 |
int i, found=0; unsigned char target_taken[CCISS_MAX_SCSI_DEVS_PER_HBA]; memset(&target_taken[0], 0, CCISS_MAX_SCSI_DEVS_PER_HBA); target_taken[SELF_SCSI_ID] = 1; |
f70dba836 cciss: use consis... |
373 374 |
for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) target_taken[ccissscsi[h->ctlr].dev[i].target] = 1; |
1da177e4c Linux-2.6.12-rc2 |
375 |
|
f70dba836 cciss: use consis... |
376 |
for (i = 0; i < CCISS_MAX_SCSI_DEVS_PER_HBA; i++) { |
1da177e4c Linux-2.6.12-rc2 |
377 378 379 380 381 382 383 |
if (!target_taken[i]) { *bus = 0; *target=i; *lun = 0; found=1; break; } } return (!found); } |
f4a93bcda cciss: change the... |
384 385 386 387 |
struct scsi2map { char scsi3addr[8]; int bus, target, lun; }; |
1da177e4c Linux-2.6.12-rc2 |
388 389 |
static int |
f70dba836 cciss: use consis... |
390 |
cciss_scsi_add_entry(ctlr_info_t *h, int hostno, |
905bd78f2 cciss: Fix cciss ... |
391 |
struct cciss_scsi_dev_t *device, |
f4a93bcda cciss: change the... |
392 |
struct scsi2map *added, int *nadded) |
1da177e4c Linux-2.6.12-rc2 |
393 |
{ |
f70dba836 cciss: use consis... |
394 395 |
/* assumes h->scsi_ctlr->lock is held */ int n = ccissscsi[h->ctlr].ndevices; |
1da177e4c Linux-2.6.12-rc2 |
396 |
struct cciss_scsi_dev_t *sd; |
935dc8d75 cciss: add suppor... |
397 398 |
int i, bus, target, lun; unsigned char addr1[8], addr2[8]; |
1da177e4c Linux-2.6.12-rc2 |
399 400 |
if (n >= CCISS_MAX_SCSI_DEVS_PER_HBA) { |
b2a4a43db cciss: change pri... |
401 402 403 |
dev_warn(&h->pdev->dev, "Too many devices, " "some will be inaccessible. "); |
1da177e4c Linux-2.6.12-rc2 |
404 405 |
return -1; } |
f4a93bcda cciss: change the... |
406 |
|
935dc8d75 cciss: add suppor... |
407 408 409 410 |
bus = target = -1; lun = 0; /* Is this device a non-zero lun of a multi-lun device */ /* byte 4 of the 8-byte LUN addr will contain the logical unit no. */ |
905bd78f2 cciss: Fix cciss ... |
411 |
if (device->scsi3addr[4] != 0) { |
935dc8d75 cciss: add suppor... |
412 413 414 415 |
/* Search through our list and find the device which */ /* has the same 8 byte LUN address, excepting byte 4. */ /* Assign the same bus and target for this new LUN. */ /* Use the logical unit number from the firmware. */ |
905bd78f2 cciss: Fix cciss ... |
416 |
memcpy(addr1, device->scsi3addr, 8); |
935dc8d75 cciss: add suppor... |
417 418 |
addr1[4] = 0; for (i = 0; i < n; i++) { |
f70dba836 cciss: use consis... |
419 |
sd = &ccissscsi[h->ctlr].dev[i]; |
935dc8d75 cciss: add suppor... |
420 421 422 423 424 425 |
memcpy(addr2, sd->scsi3addr, 8); addr2[4] = 0; /* differ only in byte 4? */ if (memcmp(addr1, addr2, 8) == 0) { bus = sd->bus; target = sd->target; |
905bd78f2 cciss: Fix cciss ... |
426 |
lun = device->scsi3addr[4]; |
935dc8d75 cciss: add suppor... |
427 428 429 430 |
break; } } } |
f70dba836 cciss: use consis... |
431 |
sd = &ccissscsi[h->ctlr].dev[n]; |
935dc8d75 cciss: add suppor... |
432 |
if (lun == 0) { |
f70dba836 cciss: use consis... |
433 |
if (find_bus_target_lun(h, |
935dc8d75 cciss: add suppor... |
434 435 436 437 438 439 440 |
&sd->bus, &sd->target, &sd->lun) != 0) return -1; } else { sd->bus = bus; sd->target = target; sd->lun = lun; } |
f4a93bcda cciss: change the... |
441 442 443 444 |
added[*nadded].bus = sd->bus; added[*nadded].target = sd->target; added[*nadded].lun = sd->lun; (*nadded)++; |
905bd78f2 cciss: Fix cciss ... |
445 446 447 448 449 |
memcpy(sd->scsi3addr, device->scsi3addr, 8); memcpy(sd->vendor, device->vendor, sizeof(sd->vendor)); memcpy(sd->revision, device->revision, sizeof(sd->revision)); memcpy(sd->device_id, device->device_id, sizeof(sd->device_id)); sd->devtype = device->devtype; |
f70dba836 cciss: use consis... |
450 |
ccissscsi[h->ctlr].ndevices++; |
1da177e4c Linux-2.6.12-rc2 |
451 452 453 454 455 |
/* initially, (before registering with scsi layer) we don't know our hostno and we don't want to print anything first time anyway (the scsi layer's inquiries will show that info) */ if (hostno != -1) |
b2a4a43db cciss: change pri... |
456 457 458 |
dev_info(&h->pdev->dev, "%s device c%db%dt%dl%d added. ", scsi_device_type(sd->devtype), hostno, |
1da177e4c Linux-2.6.12-rc2 |
459 460 461 462 463 |
sd->bus, sd->target, sd->lun); return 0; } static void |
f70dba836 cciss: use consis... |
464 |
cciss_scsi_remove_entry(ctlr_info_t *h, int hostno, int entry, |
f4a93bcda cciss: change the... |
465 |
struct scsi2map *removed, int *nremoved) |
1da177e4c Linux-2.6.12-rc2 |
466 |
{ |
f70dba836 cciss: use consis... |
467 |
/* assumes h->ctlr]->scsi_ctlr->lock is held */ |
1da177e4c Linux-2.6.12-rc2 |
468 469 470 471 |
int i; struct cciss_scsi_dev_t sd; if (entry < 0 || entry >= CCISS_MAX_SCSI_DEVS_PER_HBA) return; |
f70dba836 cciss: use consis... |
472 |
sd = ccissscsi[h->ctlr].dev[entry]; |
f4a93bcda cciss: change the... |
473 474 475 476 |
removed[*nremoved].bus = sd.bus; removed[*nremoved].target = sd.target; removed[*nremoved].lun = sd.lun; (*nremoved)++; |
f70dba836 cciss: use consis... |
477 478 479 |
for (i = entry; i < ccissscsi[h->ctlr].ndevices-1; i++) ccissscsi[h->ctlr].dev[i] = ccissscsi[h->ctlr].dev[i+1]; ccissscsi[h->ctlr].ndevices--; |
b2a4a43db cciss: change pri... |
480 481 482 |
dev_info(&h->pdev->dev, "%s device c%db%dt%dl%d removed. ", scsi_device_type(sd.devtype), hostno, |
1da177e4c Linux-2.6.12-rc2 |
483 484 485 486 487 488 489 490 491 492 493 494 495 |
sd.bus, sd.target, sd.lun); } #define SCSI3ADDR_EQ(a,b) ( \ (a)[7] == (b)[7] && \ (a)[6] == (b)[6] && \ (a)[5] == (b)[5] && \ (a)[4] == (b)[4] && \ (a)[3] == (b)[3] && \ (a)[2] == (b)[2] && \ (a)[1] == (b)[1] && \ (a)[0] == (b)[0]) |
f70dba836 cciss: use consis... |
496 |
static void fixup_botched_add(ctlr_info_t *h, char *scsi3addr) |
f4a93bcda cciss: change the... |
497 498 499 500 501 |
{ /* called when scsi_add_device fails in order to re-adjust */ /* ccissscsi[] to match the mid layer's view. */ unsigned long flags; int i, j; |
f70dba836 cciss: use consis... |
502 503 |
CPQ_TAPE_LOCK(h, flags); for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) { |
f4a93bcda cciss: change the... |
504 |
if (memcmp(scsi3addr, |
f70dba836 cciss: use consis... |
505 506 507 508 509 |
ccissscsi[h->ctlr].dev[i].scsi3addr, 8) == 0) { for (j = i; j < ccissscsi[h->ctlr].ndevices-1; j++) ccissscsi[h->ctlr].dev[j] = ccissscsi[h->ctlr].dev[j+1]; ccissscsi[h->ctlr].ndevices--; |
f4a93bcda cciss: change the... |
510 511 512 |
break; } } |
f70dba836 cciss: use consis... |
513 |
CPQ_TAPE_UNLOCK(h, flags); |
f4a93bcda cciss: change the... |
514 |
} |
905bd78f2 cciss: Fix cciss ... |
515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 |
static int device_is_the_same(struct cciss_scsi_dev_t *dev1, struct cciss_scsi_dev_t *dev2) { return dev1->devtype == dev2->devtype && memcmp(dev1->scsi3addr, dev2->scsi3addr, sizeof(dev1->scsi3addr)) == 0 && memcmp(dev1->device_id, dev2->device_id, sizeof(dev1->device_id)) == 0 && memcmp(dev1->vendor, dev2->vendor, sizeof(dev1->vendor)) == 0 && memcmp(dev1->model, dev2->model, sizeof(dev1->model)) == 0 && memcmp(dev1->revision, dev2->revision, sizeof(dev1->revision)) == 0; } |
1da177e4c Linux-2.6.12-rc2 |
530 |
static int |
f70dba836 cciss: use consis... |
531 |
adjust_cciss_scsi_table(ctlr_info_t *h, int hostno, |
1da177e4c Linux-2.6.12-rc2 |
532 533 534 535 536 537 538 539 540 541 |
struct cciss_scsi_dev_t sd[], int nsds) { /* sd contains scsi3 addresses and devtypes, but bus target and lun are not filled in. This funciton takes what's in sd to be the current and adjusts ccissscsi[] to be in line with what's in sd. */ int i,j, found, changes=0; struct cciss_scsi_dev_t *csd; unsigned long flags; |
f4a93bcda cciss: change the... |
542 543 544 545 546 547 548 549 550 551 |
struct scsi2map *added, *removed; int nadded, nremoved; struct Scsi_Host *sh = NULL; added = kzalloc(sizeof(*added) * CCISS_MAX_SCSI_DEVS_PER_HBA, GFP_KERNEL); removed = kzalloc(sizeof(*removed) * CCISS_MAX_SCSI_DEVS_PER_HBA, GFP_KERNEL); if (!added || !removed) { |
b2a4a43db cciss: change pri... |
552 553 554 |
dev_warn(&h->pdev->dev, "Out of memory in adjust_cciss_scsi_table "); |
f4a93bcda cciss: change the... |
555 556 |
goto free_and_out; } |
1da177e4c Linux-2.6.12-rc2 |
557 |
|
f70dba836 cciss: use consis... |
558 |
CPQ_TAPE_LOCK(h, flags); |
1da177e4c Linux-2.6.12-rc2 |
559 |
|
f4a93bcda cciss: change the... |
560 |
if (hostno != -1) /* if it's not the first time... */ |
f70dba836 cciss: use consis... |
561 |
sh = h->scsi_ctlr->scsi_host; |
f4a93bcda cciss: change the... |
562 |
|
1da177e4c Linux-2.6.12-rc2 |
563 564 565 566 |
/* find any devices in ccissscsi[] that are not in sd[] and remove them from ccissscsi[] */ i = 0; |
f4a93bcda cciss: change the... |
567 568 |
nremoved = 0; nadded = 0; |
f70dba836 cciss: use consis... |
569 570 |
while (i < ccissscsi[h->ctlr].ndevices) { csd = &ccissscsi[h->ctlr].dev[i]; |
1da177e4c Linux-2.6.12-rc2 |
571 572 573 574 |
found=0; for (j=0;j<nsds;j++) { if (SCSI3ADDR_EQ(sd[j].scsi3addr, csd->scsi3addr)) { |
905bd78f2 cciss: Fix cciss ... |
575 |
if (device_is_the_same(&sd[j], csd)) |
1da177e4c Linux-2.6.12-rc2 |
576 577 578 579 580 581 582 583 584 |
found=2; else found=1; break; } } if (found == 0) { /* device no longer present. */ changes++; |
f70dba836 cciss: use consis... |
585 |
cciss_scsi_remove_entry(h, hostno, i, |
f4a93bcda cciss: change the... |
586 587 |
removed, &nremoved); /* remove ^^^, hence i not incremented */ |
905bd78f2 cciss: Fix cciss ... |
588 |
} else if (found == 1) { /* device is different in some way */ |
1da177e4c Linux-2.6.12-rc2 |
589 |
changes++; |
b2a4a43db cciss: change pri... |
590 591 592 593 |
dev_info(&h->pdev->dev, "device c%db%dt%dl%d has changed. ", hostno, csd->bus, csd->target, csd->lun); |
f70dba836 cciss: use consis... |
594 |
cciss_scsi_remove_entry(h, hostno, i, |
f4a93bcda cciss: change the... |
595 596 |
removed, &nremoved); /* remove ^^^, hence i not incremented */ |
f70dba836 cciss: use consis... |
597 |
if (cciss_scsi_add_entry(h, hostno, &sd[j], |
f4a93bcda cciss: change the... |
598 599 600 |
added, &nadded) != 0) /* we just removed one, so add can't fail. */ BUG(); |
1da177e4c Linux-2.6.12-rc2 |
601 |
csd->devtype = sd[j].devtype; |
905bd78f2 cciss: Fix cciss ... |
602 603 604 605 606 607 608 609 |
memcpy(csd->device_id, sd[j].device_id, sizeof(csd->device_id)); memcpy(csd->vendor, sd[j].vendor, sizeof(csd->vendor)); memcpy(csd->model, sd[j].model, sizeof(csd->model)); memcpy(csd->revision, sd[j].revision, sizeof(csd->revision)); |
1da177e4c Linux-2.6.12-rc2 |
610 611 612 613 614 615 616 617 618 |
} else /* device is same as it ever was, */ i++; /* so just move along. */ } /* Now, make sure every device listed in sd[] is also listed in ccissscsi[], adding them if they aren't found */ for (i=0;i<nsds;i++) { found=0; |
f70dba836 cciss: use consis... |
619 620 |
for (j = 0; j < ccissscsi[h->ctlr].ndevices; j++) { csd = &ccissscsi[h->ctlr].dev[j]; |
1da177e4c Linux-2.6.12-rc2 |
621 622 |
if (SCSI3ADDR_EQ(sd[i].scsi3addr, csd->scsi3addr)) { |
905bd78f2 cciss: Fix cciss ... |
623 |
if (device_is_the_same(&sd[i], csd)) |
1da177e4c Linux-2.6.12-rc2 |
624 625 626 627 628 629 630 631 |
found=2; /* found device */ else found=1; /* found a bug. */ break; } } if (!found) { changes++; |
f70dba836 cciss: use consis... |
632 |
if (cciss_scsi_add_entry(h, hostno, &sd[i], |
f4a93bcda cciss: change the... |
633 |
added, &nadded) != 0) |
1da177e4c Linux-2.6.12-rc2 |
634 635 636 637 |
break; } else if (found == 1) { /* should never happen... */ changes++; |
b2a4a43db cciss: change pri... |
638 639 640 |
dev_warn(&h->pdev->dev, "device unexpectedly changed "); |
1da177e4c Linux-2.6.12-rc2 |
641 642 643 |
/* but if it does happen, we just ignore that device */ } } |
f70dba836 cciss: use consis... |
644 |
CPQ_TAPE_UNLOCK(h, flags); |
1da177e4c Linux-2.6.12-rc2 |
645 |
|
f4a93bcda cciss: change the... |
646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 |
/* Don't notify scsi mid layer of any changes the first time through */ /* (or if there are no changes) scsi_scan_host will do it later the */ /* first time through. */ if (hostno == -1 || !changes) goto free_and_out; /* Notify scsi mid layer of any removed devices */ for (i = 0; i < nremoved; i++) { struct scsi_device *sdev = scsi_device_lookup(sh, removed[i].bus, removed[i].target, removed[i].lun); if (sdev != NULL) { scsi_remove_device(sdev); scsi_device_put(sdev); } else { /* We don't expect to get here. */ /* future cmds to this device will get selection */ /* timeout as if the device was gone. */ |
b2a4a43db cciss: change pri... |
664 |
dev_warn(&h->pdev->dev, "didn't find " |
f4a93bcda cciss: change the... |
665 666 |
"c%db%dt%dl%d for removal.", |
b2a4a43db cciss: change pri... |
667 |
hostno, removed[i].bus, |
f4a93bcda cciss: change the... |
668 669 670 671 672 673 674 675 676 677 678 |
removed[i].target, removed[i].lun); } } /* Notify scsi mid layer of any added devices */ for (i = 0; i < nadded; i++) { int rc; rc = scsi_add_device(sh, added[i].bus, added[i].target, added[i].lun); if (rc == 0) continue; |
b2a4a43db cciss: change pri... |
679 |
dev_warn(&h->pdev->dev, "scsi_add_device " |
f4a93bcda cciss: change the... |
680 681 |
"c%db%dt%dl%d failed, device not added. ", |
b2a4a43db cciss: change pri... |
682 |
hostno, added[i].bus, added[i].target, added[i].lun); |
f4a93bcda cciss: change the... |
683 684 |
/* now we have to remove it from ccissscsi, */ /* since it didn't get added to scsi mid layer */ |
f70dba836 cciss: use consis... |
685 |
fixup_botched_add(h, added[i].scsi3addr); |
f4a93bcda cciss: change the... |
686 |
} |
1da177e4c Linux-2.6.12-rc2 |
687 |
|
f4a93bcda cciss: change the... |
688 689 690 |
free_and_out: kfree(added); kfree(removed); |
1da177e4c Linux-2.6.12-rc2 |
691 692 693 694 |
return 0; } static int |
f70dba836 cciss: use consis... |
695 |
lookup_scsi3addr(ctlr_info_t *h, int bus, int target, int lun, char *scsi3addr) |
1da177e4c Linux-2.6.12-rc2 |
696 697 698 699 |
{ int i; struct cciss_scsi_dev_t *sd; unsigned long flags; |
f70dba836 cciss: use consis... |
700 701 702 |
CPQ_TAPE_LOCK(h, flags); for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) { sd = &ccissscsi[h->ctlr].dev[i]; |
1da177e4c Linux-2.6.12-rc2 |
703 704 705 706 |
if (sd->bus == bus && sd->target == target && sd->lun == lun) { memcpy(scsi3addr, &sd->scsi3addr[0], 8); |
f70dba836 cciss: use consis... |
707 |
CPQ_TAPE_UNLOCK(h, flags); |
1da177e4c Linux-2.6.12-rc2 |
708 709 710 |
return 0; } } |
f70dba836 cciss: use consis... |
711 |
CPQ_TAPE_UNLOCK(h, flags); |
1da177e4c Linux-2.6.12-rc2 |
712 713 714 715 |
return -1; } static void |
f70dba836 cciss: use consis... |
716 |
cciss_scsi_setup(ctlr_info_t *h) |
1da177e4c Linux-2.6.12-rc2 |
717 718 |
{ struct cciss_scsi_adapter_data_t * shba; |
f70dba836 cciss: use consis... |
719 |
ccissscsi[h->ctlr].ndevices = 0; |
1da177e4c Linux-2.6.12-rc2 |
720 721 722 723 724 725 726 |
shba = (struct cciss_scsi_adapter_data_t *) kmalloc(sizeof(*shba), GFP_KERNEL); if (shba == NULL) return; shba->scsi_host = NULL; spin_lock_init(&shba->lock); shba->registered = 0; |
f70dba836 cciss: use consis... |
727 |
if (scsi_cmd_stack_setup(h, shba) != 0) { |
1da177e4c Linux-2.6.12-rc2 |
728 729 730 |
kfree(shba); shba = NULL; } |
f70dba836 cciss: use consis... |
731 |
h->scsi_ctlr = shba; |
1da177e4c Linux-2.6.12-rc2 |
732 733 |
return; } |
f70dba836 cciss: use consis... |
734 735 |
static void complete_scsi_command(CommandList_struct *c, int timeout, __u32 tag) |
1da177e4c Linux-2.6.12-rc2 |
736 737 |
{ struct scsi_cmnd *cmd; |
f70dba836 cciss: use consis... |
738 |
ctlr_info_t *h; |
1da177e4c Linux-2.6.12-rc2 |
739 |
ErrorInfo_struct *ei; |
f70dba836 cciss: use consis... |
740 |
ei = c->err_info; |
1da177e4c Linux-2.6.12-rc2 |
741 742 |
/* First, see if it was a message rather than a command */ |
f70dba836 cciss: use consis... |
743 744 |
if (c->Request.Type.Type == TYPE_MSG) { c->cmd_type = CMD_MSG_DONE; |
1da177e4c Linux-2.6.12-rc2 |
745 746 |
return; } |
f70dba836 cciss: use consis... |
747 748 |
cmd = (struct scsi_cmnd *) c->scsi_cmd; h = hba[c->ctlr]; |
1da177e4c Linux-2.6.12-rc2 |
749 |
|
41ce639a1 [SCSI] cciss: con... |
750 |
scsi_dma_unmap(cmd); |
f70dba836 cciss: use consis... |
751 752 |
if (c->Header.SGTotal > h->max_cmd_sgentries) cciss_unmap_sg_chain_block(h, c); |
1da177e4c Linux-2.6.12-rc2 |
753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 |
cmd->result = (DID_OK << 16); /* host byte */ cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */ /* cmd->result |= (GOOD < 1); */ /* status byte */ cmd->result |= (ei->ScsiStatus); /* printk("Scsistatus is 0x%02x ", ei->ScsiStatus); */ /* copy the sense data whether we need to or not. */ memcpy(cmd->sense_buffer, ei->SenseInfo, ei->SenseLen > SCSI_SENSE_BUFFERSIZE ? SCSI_SENSE_BUFFERSIZE : ei->SenseLen); |
41ce639a1 [SCSI] cciss: con... |
768 |
scsi_set_resid(cmd, ei->ResidualCnt); |
1da177e4c Linux-2.6.12-rc2 |
769 770 771 772 773 774 775 776 777 778 779 |
if(ei->CommandStatus != 0) { /* an error has occurred */ switch(ei->CommandStatus) { case CMD_TARGET_STATUS: /* Pass it up to the upper layers... */ if( ei->ScsiStatus) { #if 0 printk(KERN_WARNING "cciss: cmd %p " |
f70dba836 cciss: use consis... |
780 781 782 |
"has SCSI Status = %x ", c, ei->ScsiStatus); |
1da177e4c Linux-2.6.12-rc2 |
783 |
#endif |
b0e15f6db cciss: fix typo t... |
784 |
cmd->result |= (ei->ScsiStatus << 1); |
1da177e4c Linux-2.6.12-rc2 |
785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 |
} else { /* scsi status is zero??? How??? */ /* Ordinarily, this case should never happen, but there is a bug in some released firmware revisions that allows it to happen if, for example, a 4100 backplane loses power and the tape drive is in it. We assume that it's a fatal error of some kind because we can't show that it wasn't. We will make it look like selection timeout since that is the most common reason for this to occur, and it's severe enough. */ cmd->result = DID_NO_CONNECT << 16; } break; case CMD_DATA_UNDERRUN: /* let mid layer handle it. */ break; case CMD_DATA_OVERRUN: |
b2a4a43db cciss: change pri... |
802 |
dev_warn(&h->pdev->dev, "%p has" |
1da177e4c Linux-2.6.12-rc2 |
803 |
" completed with data overrun " |
f70dba836 cciss: use consis... |
804 805 |
"reported ", c); |
1da177e4c Linux-2.6.12-rc2 |
806 807 |
break; case CMD_INVALID: { |
f70dba836 cciss: use consis... |
808 809 |
/* print_bytes(c, sizeof(*c), 1, 0); print_cmd(c); */ |
1da177e4c Linux-2.6.12-rc2 |
810 811 812 813 814 815 816 817 818 |
/* We get CMD_INVALID if you address a non-existent tape drive instead of a selection timeout (no response). You will see this if you yank out a tape drive, then try to access it. This is kind of a shame because it means that any other CMD_INVALID (e.g. driver bug) will get interpreted as a missing target. */ cmd->result = DID_NO_CONNECT << 16; } break; case CMD_PROTOCOL_ERR: |
b2a4a43db cciss: change pri... |
819 820 821 |
dev_warn(&h->pdev->dev, "%p has protocol error ", c); |
1da177e4c Linux-2.6.12-rc2 |
822 823 824 |
break; case CMD_HARDWARE_ERR: cmd->result = DID_ERROR << 16; |
b2a4a43db cciss: change pri... |
825 826 827 |
dev_warn(&h->pdev->dev, "%p had hardware error ", c); |
1da177e4c Linux-2.6.12-rc2 |
828 829 830 |
break; case CMD_CONNECTION_LOST: cmd->result = DID_ERROR << 16; |
b2a4a43db cciss: change pri... |
831 832 833 |
dev_warn(&h->pdev->dev, "%p had connection lost ", c); |
1da177e4c Linux-2.6.12-rc2 |
834 835 836 |
break; case CMD_ABORTED: cmd->result = DID_ABORT << 16; |
b2a4a43db cciss: change pri... |
837 838 |
dev_warn(&h->pdev->dev, "%p was aborted ", c); |
1da177e4c Linux-2.6.12-rc2 |
839 840 841 |
break; case CMD_ABORT_FAILED: cmd->result = DID_ERROR << 16; |
b2a4a43db cciss: change pri... |
842 843 844 |
dev_warn(&h->pdev->dev, "%p reports abort failed ", c); |
1da177e4c Linux-2.6.12-rc2 |
845 846 847 |
break; case CMD_UNSOLICITED_ABORT: cmd->result = DID_ABORT << 16; |
6d9a4f9e2 cciss: fix missed... |
848 |
dev_warn(&h->pdev->dev, "%p aborted due to an " |
b2a4a43db cciss: change pri... |
849 850 |
"unsolicited abort ", c); |
1da177e4c Linux-2.6.12-rc2 |
851 852 853 |
break; case CMD_TIMEOUT: cmd->result = DID_TIME_OUT << 16; |
b2a4a43db cciss: change pri... |
854 855 |
dev_warn(&h->pdev->dev, "%p timedout ", c); |
1da177e4c Linux-2.6.12-rc2 |
856 |
break; |
6d9a4f9e2 cciss: fix missed... |
857 858 859 860 861 862 |
case CMD_UNABORTABLE: cmd->result = DID_ERROR << 16; dev_warn(&h->pdev->dev, "c %p command " "unabortable ", c); break; |
1da177e4c Linux-2.6.12-rc2 |
863 864 |
default: cmd->result = DID_ERROR << 16; |
b2a4a43db cciss: change pri... |
865 866 867 |
dev_warn(&h->pdev->dev, "%p returned unknown status %x ", c, |
1da177e4c Linux-2.6.12-rc2 |
868 869 870 |
ei->CommandStatus); } } |
1da177e4c Linux-2.6.12-rc2 |
871 |
cmd->scsi_done(cmd); |
f70dba836 cciss: use consis... |
872 |
scsi_cmd_free(h, c); |
1da177e4c Linux-2.6.12-rc2 |
873 874 875 |
} static int |
f70dba836 cciss: use consis... |
876 |
cciss_scsi_detect(ctlr_info_t *h) |
1da177e4c Linux-2.6.12-rc2 |
877 878 879 880 881 882 883 884 885 886 |
{ struct Scsi_Host *sh; int error; sh = scsi_host_alloc(&cciss_driver_template, sizeof(struct ctlr_info *)); if (sh == NULL) goto fail; sh->io_port = 0; // good enough? FIXME, sh->n_io_port = 0; // I don't think we use these two... sh->this_id = SELF_SCSI_ID; |
8a4ec67bd cciss: add cciss_... |
887 |
sh->can_queue = cciss_tape_cmds; |
f70dba836 cciss: use consis... |
888 |
sh->sg_tablesize = h->maxsgentries; |
79600aadc cciss: set SCSI m... |
889 |
sh->max_cmd_len = MAX_COMMAND_SIZE; |
1da177e4c Linux-2.6.12-rc2 |
890 891 |
((struct cciss_scsi_adapter_data_t *) |
f70dba836 cciss: use consis... |
892 893 894 |
h->scsi_ctlr)->scsi_host = sh; sh->hostdata[0] = (unsigned long) h; sh->irq = h->intr[SIMPLE_MODE_INT]; |
1da177e4c Linux-2.6.12-rc2 |
895 |
sh->unique_id = sh->irq; |
f70dba836 cciss: use consis... |
896 |
error = scsi_add_host(sh, &h->pdev->dev); |
1da177e4c Linux-2.6.12-rc2 |
897 898 899 900 901 902 903 904 905 906 907 908 909 |
if (error) goto fail_host_put; scsi_scan_host(sh); return 1; fail_host_put: scsi_host_put(sh); fail: return 0; } static void cciss_unmap_one(struct pci_dev *pdev, |
f70dba836 cciss: use consis... |
910 |
CommandList_struct *c, |
1da177e4c Linux-2.6.12-rc2 |
911 912 913 914 |
size_t buflen, int data_direction) { u64bit addr64; |
f70dba836 cciss: use consis... |
915 916 |
addr64.val32.lower = c->SG[0].Addr.lower; addr64.val32.upper = c->SG[0].Addr.upper; |
1da177e4c Linux-2.6.12-rc2 |
917 918 919 920 921 |
pci_unmap_single(pdev, (dma_addr_t) addr64.val, buflen, data_direction); } static void cciss_map_one(struct pci_dev *pdev, |
f70dba836 cciss: use consis... |
922 |
CommandList_struct *c, |
1da177e4c Linux-2.6.12-rc2 |
923 924 925 926 927 928 929 |
unsigned char *buf, size_t buflen, int data_direction) { __u64 addr64; addr64 = (__u64) pci_map_single(pdev, buf, buflen, data_direction); |
f70dba836 cciss: use consis... |
930 |
c->SG[0].Addr.lower = |
1da177e4c Linux-2.6.12-rc2 |
931 |
(__u32) (addr64 & (__u64) 0x00000000FFFFFFFF); |
f70dba836 cciss: use consis... |
932 |
c->SG[0].Addr.upper = |
1da177e4c Linux-2.6.12-rc2 |
933 |
(__u32) ((addr64 >> 32) & (__u64) 0x00000000FFFFFFFF); |
f70dba836 cciss: use consis... |
934 935 936 |
c->SG[0].Len = buflen; c->Header.SGList = (__u8) 1; /* no. SGs contig in this cmd */ c->Header.SGTotal = (__u16) 1; /* total sgs in this cmd list */ |
1da177e4c Linux-2.6.12-rc2 |
937 938 939 |
} static int |
f70dba836 cciss: use consis... |
940 941 |
cciss_scsi_do_simple_cmd(ctlr_info_t *h, CommandList_struct *c, |
1da177e4c Linux-2.6.12-rc2 |
942 943 944 945 946 947 |
unsigned char *scsi3addr, unsigned char *cdb, unsigned char cdblen, unsigned char *buf, int bufsize, int direction) { |
6e9a4738c [PATCH] completio... |
948 |
DECLARE_COMPLETION_ONSTACK(wait); |
1da177e4c Linux-2.6.12-rc2 |
949 |
|
f70dba836 cciss: use consis... |
950 951 952 953 954 |
c->cmd_type = CMD_IOCTL_PEND; /* treat this like an ioctl */ c->scsi_cmd = NULL; c->Header.ReplyQueue = 0; /* unused in simple mode */ memcpy(&c->Header.LUN, scsi3addr, sizeof(c->Header.LUN)); c->Header.Tag.lower = c->busaddr; /* Use k. address of cmd as tag */ |
1da177e4c Linux-2.6.12-rc2 |
955 956 957 958 959 960 |
// Fill in the request block... /* printk("Using scsi3addr 0x%02x%0x2%0x2%0x2%0x2%0x2%0x2%0x2 ", scsi3addr[0], scsi3addr[1], scsi3addr[2], scsi3addr[3], scsi3addr[4], scsi3addr[5], scsi3addr[6], scsi3addr[7]); */ |
f70dba836 cciss: use consis... |
961 962 963 964 965 966 967 |
memset(c->Request.CDB, 0, sizeof(c->Request.CDB)); memcpy(c->Request.CDB, cdb, cdblen); c->Request.Timeout = 0; c->Request.CDBLen = cdblen; c->Request.Type.Type = TYPE_CMD; c->Request.Type.Attribute = ATTR_SIMPLE; c->Request.Type.Direction = direction; |
1da177e4c Linux-2.6.12-rc2 |
968 969 |
/* Fill in the SG list and do dma mapping */ |
f70dba836 cciss: use consis... |
970 |
cciss_map_one(h->pdev, c, (unsigned char *) buf, |
1da177e4c Linux-2.6.12-rc2 |
971 |
bufsize, DMA_FROM_DEVICE); |
f70dba836 cciss: use consis... |
972 973 |
c->waiting = &wait; enqueue_cmd_and_start_io(h, c); |
1da177e4c Linux-2.6.12-rc2 |
974 975 976 |
wait_for_completion(&wait); /* undo the dma mapping */ |
f70dba836 cciss: use consis... |
977 |
cciss_unmap_one(h->pdev, c, bufsize, DMA_FROM_DEVICE); |
1da177e4c Linux-2.6.12-rc2 |
978 979 980 981 |
return(0); } static void |
b2a4a43db cciss: change pri... |
982 |
cciss_scsi_interpret_error(ctlr_info_t *h, CommandList_struct *c) |
1da177e4c Linux-2.6.12-rc2 |
983 984 |
{ ErrorInfo_struct *ei; |
f70dba836 cciss: use consis... |
985 |
ei = c->err_info; |
1da177e4c Linux-2.6.12-rc2 |
986 987 988 |
switch(ei->CommandStatus) { case CMD_TARGET_STATUS: |
b2a4a43db cciss: change pri... |
989 990 991 992 993 994 995 |
dev_warn(&h->pdev->dev, "cmd %p has completed with errors ", c); dev_warn(&h->pdev->dev, "cmd %p has SCSI Status = %x ", c, ei->ScsiStatus); |
1da177e4c Linux-2.6.12-rc2 |
996 |
if (ei->ScsiStatus == 0) |
b2a4a43db cciss: change pri... |
997 998 |
dev_warn(&h->pdev->dev, "SCSI status is abnormally zero. " |
1da177e4c Linux-2.6.12-rc2 |
999 1000 1001 1002 1003 1004 |
"(probably indicates selection timeout " "reported incorrectly due to a known " "firmware bug, circa July, 2001.) "); break; case CMD_DATA_UNDERRUN: /* let mid layer handle it. */ |
b2a4a43db cciss: change pri... |
1005 1006 |
dev_info(&h->pdev->dev, "UNDERRUN "); |
1da177e4c Linux-2.6.12-rc2 |
1007 1008 |
break; case CMD_DATA_OVERRUN: |
b2a4a43db cciss: change pri... |
1009 |
dev_warn(&h->pdev->dev, "%p has" |
1da177e4c Linux-2.6.12-rc2 |
1010 |
" completed with data overrun " |
f70dba836 cciss: use consis... |
1011 1012 |
"reported ", c); |
1da177e4c Linux-2.6.12-rc2 |
1013 1014 1015 1016 |
break; case CMD_INVALID: { /* controller unfortunately reports SCSI passthru's */ /* to non-existent targets as invalid commands. */ |
b2a4a43db cciss: change pri... |
1017 1018 |
dev_warn(&h->pdev->dev, "%p is reported invalid (probably means " |
f70dba836 cciss: use consis... |
1019 1020 1021 1022 |
"target device no longer present) ", c); /* print_bytes((unsigned char *) c, sizeof(*c), 1, 0); print_cmd(c); */ |
1da177e4c Linux-2.6.12-rc2 |
1023 1024 1025 |
} break; case CMD_PROTOCOL_ERR: |
b2a4a43db cciss: change pri... |
1026 1027 |
dev_warn(&h->pdev->dev, "%p has protocol error ", c); |
1da177e4c Linux-2.6.12-rc2 |
1028 1029 1030 |
break; case CMD_HARDWARE_ERR: /* cmd->result = DID_ERROR << 16; */ |
b2a4a43db cciss: change pri... |
1031 1032 |
dev_warn(&h->pdev->dev, "%p had hardware error ", c); |
1da177e4c Linux-2.6.12-rc2 |
1033 1034 |
break; case CMD_CONNECTION_LOST: |
b2a4a43db cciss: change pri... |
1035 1036 |
dev_warn(&h->pdev->dev, "%p had connection lost ", c); |
1da177e4c Linux-2.6.12-rc2 |
1037 1038 |
break; case CMD_ABORTED: |
b2a4a43db cciss: change pri... |
1039 1040 |
dev_warn(&h->pdev->dev, "%p was aborted ", c); |
1da177e4c Linux-2.6.12-rc2 |
1041 1042 |
break; case CMD_ABORT_FAILED: |
b2a4a43db cciss: change pri... |
1043 1044 1045 |
dev_warn(&h->pdev->dev, "%p reports abort failed ", c); |
1da177e4c Linux-2.6.12-rc2 |
1046 1047 |
break; case CMD_UNSOLICITED_ABORT: |
b2a4a43db cciss: change pri... |
1048 |
dev_warn(&h->pdev->dev, |
6d9a4f9e2 cciss: fix missed... |
1049 1050 |
"%p aborted due to an unsolicited abort ", c); |
1da177e4c Linux-2.6.12-rc2 |
1051 1052 |
break; case CMD_TIMEOUT: |
b2a4a43db cciss: change pri... |
1053 1054 |
dev_warn(&h->pdev->dev, "%p timedout ", c); |
1da177e4c Linux-2.6.12-rc2 |
1055 |
break; |
6d9a4f9e2 cciss: fix missed... |
1056 1057 1058 1059 1060 |
case CMD_UNABORTABLE: dev_warn(&h->pdev->dev, "%p unabortable ", c); break; |
1da177e4c Linux-2.6.12-rc2 |
1061 |
default: |
b2a4a43db cciss: change pri... |
1062 1063 1064 1065 |
dev_warn(&h->pdev->dev, "%p returned unknown status %x ", c, ei->CommandStatus); |
1da177e4c Linux-2.6.12-rc2 |
1066 1067 1068 1069 |
} } static int |
f70dba836 cciss: use consis... |
1070 |
cciss_scsi_do_inquiry(ctlr_info_t *h, unsigned char *scsi3addr, |
905bd78f2 cciss: Fix cciss ... |
1071 1072 |
unsigned char page, unsigned char *buf, unsigned char bufsize) |
1da177e4c Linux-2.6.12-rc2 |
1073 1074 |
{ int rc; |
f70dba836 cciss: use consis... |
1075 |
CommandList_struct *c; |
1da177e4c Linux-2.6.12-rc2 |
1076 1077 1078 |
char cdb[6]; ErrorInfo_struct *ei; unsigned long flags; |
f70dba836 cciss: use consis... |
1079 1080 1081 |
spin_lock_irqsave(&h->lock, flags); c = scsi_cmd_alloc(h); spin_unlock_irqrestore(&h->lock, flags); |
1da177e4c Linux-2.6.12-rc2 |
1082 |
|
f70dba836 cciss: use consis... |
1083 |
if (c == NULL) { /* trouble... */ |
1da177e4c Linux-2.6.12-rc2 |
1084 1085 1086 1087 |
printk("cmd_alloc returned NULL! "); return -1; } |
f70dba836 cciss: use consis... |
1088 |
ei = c->err_info; |
1da177e4c Linux-2.6.12-rc2 |
1089 1090 |
cdb[0] = CISS_INQUIRY; |
905bd78f2 cciss: Fix cciss ... |
1091 1092 |
cdb[1] = (page != 0); cdb[2] = page; |
1da177e4c Linux-2.6.12-rc2 |
1093 |
cdb[3] = 0; |
47922d068 [PATCH] cciss: On... |
1094 |
cdb[4] = bufsize; |
1da177e4c Linux-2.6.12-rc2 |
1095 |
cdb[5] = 0; |
f70dba836 cciss: use consis... |
1096 |
rc = cciss_scsi_do_simple_cmd(h, c, scsi3addr, cdb, |
47922d068 [PATCH] cciss: On... |
1097 |
6, buf, bufsize, XFER_READ); |
1da177e4c Linux-2.6.12-rc2 |
1098 1099 1100 1101 1102 |
if (rc != 0) return rc; /* something went wrong */ if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { |
b2a4a43db cciss: change pri... |
1103 |
cciss_scsi_interpret_error(h, c); |
1da177e4c Linux-2.6.12-rc2 |
1104 1105 |
rc = -1; } |
f70dba836 cciss: use consis... |
1106 1107 1108 |
spin_lock_irqsave(&h->lock, flags); scsi_cmd_free(h, c); spin_unlock_irqrestore(&h->lock, flags); |
1da177e4c Linux-2.6.12-rc2 |
1109 1110 |
return rc; } |
905bd78f2 cciss: Fix cciss ... |
1111 |
/* Get the device id from inquiry page 0x83 */ |
f70dba836 cciss: use consis... |
1112 |
static int cciss_scsi_get_device_id(ctlr_info_t *h, unsigned char *scsi3addr, |
905bd78f2 cciss: Fix cciss ... |
1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 |
unsigned char *device_id, int buflen) { int rc; unsigned char *buf; if (buflen > 16) buflen = 16; buf = kzalloc(64, GFP_KERNEL); if (!buf) return -1; |
f70dba836 cciss: use consis... |
1123 |
rc = cciss_scsi_do_inquiry(h, scsi3addr, 0x83, buf, 64); |
905bd78f2 cciss: Fix cciss ... |
1124 1125 1126 1127 1128 |
if (rc == 0) memcpy(device_id, &buf[8], buflen); kfree(buf); return rc != 0; } |
1da177e4c Linux-2.6.12-rc2 |
1129 |
static int |
f70dba836 cciss: use consis... |
1130 |
cciss_scsi_do_report_phys_luns(ctlr_info_t *h, |
1da177e4c Linux-2.6.12-rc2 |
1131 1132 1133 |
ReportLunData_struct *buf, int bufsize) { int rc; |
f70dba836 cciss: use consis... |
1134 |
CommandList_struct *c; |
1da177e4c Linux-2.6.12-rc2 |
1135 1136 1137 1138 |
unsigned char cdb[12]; unsigned char scsi3addr[8]; ErrorInfo_struct *ei; unsigned long flags; |
f70dba836 cciss: use consis... |
1139 1140 1141 1142 |
spin_lock_irqsave(&h->lock, flags); c = scsi_cmd_alloc(h); spin_unlock_irqrestore(&h->lock, flags); if (c == NULL) { /* trouble... */ |
1da177e4c Linux-2.6.12-rc2 |
1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 |
printk("cmd_alloc returned NULL! "); return -1; } memset(&scsi3addr[0], 0, 8); /* address the controller */ cdb[0] = CISS_REPORT_PHYS; cdb[1] = 0; cdb[2] = 0; cdb[3] = 0; cdb[4] = 0; cdb[5] = 0; cdb[6] = (bufsize >> 24) & 0xFF; //MSB cdb[7] = (bufsize >> 16) & 0xFF; cdb[8] = (bufsize >> 8) & 0xFF; cdb[9] = bufsize & 0xFF; cdb[10] = 0; cdb[11] = 0; |
f70dba836 cciss: use consis... |
1161 |
rc = cciss_scsi_do_simple_cmd(h, c, scsi3addr, |
1da177e4c Linux-2.6.12-rc2 |
1162 1163 1164 1165 1166 |
cdb, 12, (unsigned char *) buf, bufsize, XFER_READ); if (rc != 0) return rc; /* something went wrong */ |
f70dba836 cciss: use consis... |
1167 |
ei = c->err_info; |
1da177e4c Linux-2.6.12-rc2 |
1168 1169 |
if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { |
b2a4a43db cciss: change pri... |
1170 |
cciss_scsi_interpret_error(h, c); |
1da177e4c Linux-2.6.12-rc2 |
1171 1172 |
rc = -1; } |
f70dba836 cciss: use consis... |
1173 1174 1175 |
spin_lock_irqsave(&h->lock, flags); scsi_cmd_free(h, c); spin_unlock_irqrestore(&h->lock, flags); |
1da177e4c Linux-2.6.12-rc2 |
1176 1177 1178 1179 |
return rc; } static void |
f70dba836 cciss: use consis... |
1180 |
cciss_update_non_disk_devices(ctlr_info_t *h, int hostno) |
1da177e4c Linux-2.6.12-rc2 |
1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 |
{ /* the idea here is we could get notified from /proc that some devices have changed, so we do a report physical luns cmd, and adjust our list of devices accordingly. (We can't rely on the scsi-mid layer just doing inquiries, because the "busses" that the scsi mid-layer probes are totally fabricated by this driver, so new devices wouldn't show up. the scsi3addr's of devices won't change so long as the adapter is not reset. That means we can rescan and tell which devices we already know about, vs. new devices, vs. disappearing devices. Also, if you yank out a tape drive, then put in a disk in it's place, (say, a configured volume from another array controller for instance) _don't_ poke this driver (so it thinks it's still a tape, but _do_ poke the scsi mid layer, so it does an inquiry... the scsi mid layer will see the physical disk. This would be bad. Need to think about how to prevent that. One idea would be to snoop all scsi responses and if an inquiry repsonse comes back that reports a disk, chuck it an return selection timeout instead and adjust our table... Not sure i like that though. */ |
47922d068 [PATCH] cciss: On... |
1208 1209 |
#define OBDR_TAPE_INQ_SIZE 49 #define OBDR_TAPE_SIG "$DR-10" |
1da177e4c Linux-2.6.12-rc2 |
1210 |
ReportLunData_struct *ld_buff; |
47922d068 [PATCH] cciss: On... |
1211 |
unsigned char *inq_buff; |
1da177e4c Linux-2.6.12-rc2 |
1212 |
unsigned char scsi3addr[8]; |
1da177e4c Linux-2.6.12-rc2 |
1213 1214 |
__u32 num_luns=0; unsigned char *ch; |
905bd78f2 cciss: Fix cciss ... |
1215 |
struct cciss_scsi_dev_t *currentsd, *this_device; |
1da177e4c Linux-2.6.12-rc2 |
1216 1217 1218 |
int ncurrent=0; int reportlunsize = sizeof(*ld_buff) + CISS_MAX_PHYS_LUN * 8; int i; |
06ff37ffb [PATCH] kzalloc()... |
1219 |
ld_buff = kzalloc(reportlunsize, GFP_KERNEL); |
47922d068 [PATCH] cciss: On... |
1220 |
inq_buff = kmalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL); |
905bd78f2 cciss: Fix cciss ... |
1221 1222 1223 1224 1225 1226 |
currentsd = kzalloc(sizeof(*currentsd) * (CCISS_MAX_SCSI_DEVS_PER_HBA+1), GFP_KERNEL); if (ld_buff == NULL || inq_buff == NULL || currentsd == NULL) { printk(KERN_ERR "cciss: out of memory "); goto out; |
1da177e4c Linux-2.6.12-rc2 |
1227 |
} |
905bd78f2 cciss: Fix cciss ... |
1228 |
this_device = ¤tsd[CCISS_MAX_SCSI_DEVS_PER_HBA]; |
f70dba836 cciss: use consis... |
1229 |
if (cciss_scsi_do_report_phys_luns(h, ld_buff, reportlunsize) == 0) { |
1da177e4c Linux-2.6.12-rc2 |
1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 |
ch = &ld_buff->LUNListLength[0]; num_luns = ((ch[0]<<24) | (ch[1]<<16) | (ch[2]<<8) | ch[3]) / 8; if (num_luns > CISS_MAX_PHYS_LUN) { printk(KERN_WARNING "cciss: Maximum physical LUNs (%d) exceeded. " "%d LUNs ignored. ", CISS_MAX_PHYS_LUN, num_luns - CISS_MAX_PHYS_LUN); num_luns = CISS_MAX_PHYS_LUN; } } else { printk(KERN_ERR "cciss: Report physical LUNs failed. "); goto out; } /* adjust our table of devices */ |
905bd78f2 cciss: Fix cciss ... |
1249 |
for (i = 0; i < num_luns; i++) { |
1da177e4c Linux-2.6.12-rc2 |
1250 1251 |
/* for each physical lun, do an inquiry */ if (ld_buff->LUN[i][3] & 0xC0) continue; |
47922d068 [PATCH] cciss: On... |
1252 |
memset(inq_buff, 0, OBDR_TAPE_INQ_SIZE); |
1da177e4c Linux-2.6.12-rc2 |
1253 |
memcpy(&scsi3addr[0], &ld_buff->LUN[i][0], 8); |
f70dba836 cciss: use consis... |
1254 |
if (cciss_scsi_do_inquiry(h, scsi3addr, 0, inq_buff, |
905bd78f2 cciss: Fix cciss ... |
1255 |
(unsigned char) OBDR_TAPE_INQ_SIZE) != 0) |
1da177e4c Linux-2.6.12-rc2 |
1256 |
/* Inquiry failed (msg printed already) */ |
905bd78f2 cciss: Fix cciss ... |
1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 |
continue; /* so we will skip this device. */ this_device->devtype = (inq_buff[0] & 0x1f); this_device->bus = -1; this_device->target = -1; this_device->lun = -1; memcpy(this_device->scsi3addr, scsi3addr, 8); memcpy(this_device->vendor, &inq_buff[8], sizeof(this_device->vendor)); memcpy(this_device->model, &inq_buff[16], sizeof(this_device->model)); memcpy(this_device->revision, &inq_buff[32], sizeof(this_device->revision)); memset(this_device->device_id, 0, sizeof(this_device->device_id)); |
f70dba836 cciss: use consis... |
1272 |
cciss_scsi_get_device_id(h, scsi3addr, |
905bd78f2 cciss: Fix cciss ... |
1273 1274 1275 |
this_device->device_id, sizeof(this_device->device_id)); switch (this_device->devtype) |
1da177e4c Linux-2.6.12-rc2 |
1276 |
{ |
47922d068 [PATCH] cciss: On... |
1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 |
case 0x05: /* CD-ROM */ { /* We don't *really* support actual CD-ROM devices, * just this "One Button Disaster Recovery" tape drive * which temporarily pretends to be a CD-ROM drive. * So we check that the device is really an OBDR tape * device by checking for "$DR-10" in bytes 43-48 of * the inquiry data. */ char obdr_sig[7]; strncpy(obdr_sig, &inq_buff[43], 6); obdr_sig[6] = '\0'; if (strncmp(obdr_sig, OBDR_TAPE_SIG, 6) != 0) /* Not OBDR device, ignore it. */ break; } /* fall through . . . */ |
1da177e4c Linux-2.6.12-rc2 |
1295 1296 1297 1298 |
case 0x01: /* sequential access, (tape) */ case 0x08: /* medium changer */ if (ncurrent >= CCISS_MAX_SCSI_DEVS_PER_HBA) { printk(KERN_INFO "cciss%d: %s ignored, " |
f70dba836 cciss: use consis... |
1299 1300 |
"too many devices. ", h->ctlr, |
905bd78f2 cciss: Fix cciss ... |
1301 |
scsi_device_type(this_device->devtype)); |
1da177e4c Linux-2.6.12-rc2 |
1302 1303 |
break; } |
905bd78f2 cciss: Fix cciss ... |
1304 |
currentsd[ncurrent] = *this_device; |
1da177e4c Linux-2.6.12-rc2 |
1305 1306 1307 1308 1309 1310 |
ncurrent++; break; default: break; } } |
f70dba836 cciss: use consis... |
1311 |
adjust_cciss_scsi_table(h, hostno, currentsd, ncurrent); |
1da177e4c Linux-2.6.12-rc2 |
1312 1313 1314 |
out: kfree(inq_buff); kfree(ld_buff); |
905bd78f2 cciss: Fix cciss ... |
1315 |
kfree(currentsd); |
1da177e4c Linux-2.6.12-rc2 |
1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 |
return; } static int is_keyword(char *ptr, int len, char *verb) // Thanks to ncr53c8xx.c { int verb_len = strlen(verb); if (len >= verb_len && !memcmp(verb,ptr,verb_len)) return verb_len; else return 0; } static int |
f70dba836 cciss: use consis... |
1330 |
cciss_scsi_user_command(ctlr_info_t *h, int hostno, char *buffer, int length) |
1da177e4c Linux-2.6.12-rc2 |
1331 1332 1333 1334 |
{ int arg_len; if ((arg_len = is_keyword(buffer, length, "rescan")) != 0) |
f70dba836 cciss: use consis... |
1335 |
cciss_update_non_disk_devices(h, hostno); |
1da177e4c Linux-2.6.12-rc2 |
1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 |
else return -EINVAL; return length; } static int cciss_scsi_proc_info(struct Scsi_Host *sh, char *buffer, /* data buffer */ char **start, /* where data in buffer starts */ off_t offset, /* offset from start of imaginary file */ int length, /* length of data in buffer */ int func) /* 0 == read, 1 == write */ { int buflen, datalen; |
f70dba836 cciss: use consis... |
1352 |
ctlr_info_t *h; |
b9f0bd089 [PATCH] cciss: SC... |
1353 |
int i; |
1da177e4c Linux-2.6.12-rc2 |
1354 |
|
f70dba836 cciss: use consis... |
1355 1356 |
h = (ctlr_info_t *) sh->hostdata[0]; if (h == NULL) /* This really shouldn't ever happen. */ |
1da177e4c Linux-2.6.12-rc2 |
1357 |
return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
1358 |
if (func == 0) { /* User is reading from /proc/scsi/ciss*?/?* */ |
b9f0bd089 [PATCH] cciss: SC... |
1359 1360 |
buflen = sprintf(buffer, "cciss%d: SCSI host: %d ", |
f70dba836 cciss: use consis... |
1361 |
h->ctlr, sh->host_no); |
b9f0bd089 [PATCH] cciss: SC... |
1362 1363 1364 1365 1366 1367 1368 1369 |
/* this information is needed by apps to know which cciss device corresponds to which scsi host number without having to open a scsi target device node. The device information is not a duplicate of /proc/scsi/scsi because the two may be out of sync due to scsi hotplug, rather this info is for an app to be able to use to know how to get them back in sync. */ |
f70dba836 cciss: use consis... |
1370 1371 1372 |
for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) { struct cciss_scsi_dev_t *sd = &ccissscsi[h->ctlr].dev[i]; |
b9f0bd089 [PATCH] cciss: SC... |
1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 |
buflen += sprintf(&buffer[buflen], "c%db%dt%dl%d %02d " "0x%02x%02x%02x%02x%02x%02x%02x%02x ", sh->host_no, sd->bus, sd->target, sd->lun, sd->devtype, sd->scsi3addr[0], sd->scsi3addr[1], sd->scsi3addr[2], sd->scsi3addr[3], sd->scsi3addr[4], sd->scsi3addr[5], sd->scsi3addr[6], sd->scsi3addr[7]); } |
1da177e4c Linux-2.6.12-rc2 |
1383 1384 1385 1386 1387 1388 1389 1390 |
datalen = buflen - offset; if (datalen < 0) { /* they're reading past EOF. */ datalen = 0; *start = buffer+buflen; } else *start = buffer + offset; return(datalen); } else /* User is writing to /proc/scsi/cciss*?/?* ... */ |
f70dba836 cciss: use consis... |
1391 |
return cciss_scsi_user_command(h, sh->host_no, |
1da177e4c Linux-2.6.12-rc2 |
1392 1393 1394 1395 1396 |
buffer, length); } /* cciss_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci dma mapping and fills in the scatter gather entries of the |
f70dba836 cciss: use consis... |
1397 |
cciss command, c. */ |
1da177e4c Linux-2.6.12-rc2 |
1398 |
|
f70dba836 cciss: use consis... |
1399 |
static void cciss_scatter_gather(ctlr_info_t *h, CommandList_struct *c, |
87c3a922a cciss: Fix proble... |
1400 |
struct scsi_cmnd *cmd) |
1da177e4c Linux-2.6.12-rc2 |
1401 |
{ |
41ce639a1 [SCSI] cciss: con... |
1402 1403 |
unsigned int len; struct scatterlist *sg; |
1da177e4c Linux-2.6.12-rc2 |
1404 |
__u64 addr64; |
87c3a922a cciss: Fix proble... |
1405 1406 1407 1408 1409 1410 1411 1412 |
int request_nsgs, i, chained, sg_index; struct cciss_scsi_adapter_data_t *sa = h->scsi_ctlr; SGDescriptor_struct *curr_sg; BUG_ON(scsi_sg_count(cmd) > h->maxsgentries); chained = 0; sg_index = 0; |
f70dba836 cciss: use consis... |
1413 |
curr_sg = c->SG; |
87c3a922a cciss: Fix proble... |
1414 1415 1416 1417 1418 1419 1420 |
request_nsgs = scsi_dma_map(cmd); if (request_nsgs) { scsi_for_each_sg(cmd, sg, request_nsgs, i) { if (sg_index + 1 == h->max_cmd_sgentries && !chained && request_nsgs - i > 1) { chained = 1; sg_index = 0; |
f70dba836 cciss: use consis... |
1421 |
curr_sg = sa->cmd_sg_list[c->cmdindex]; |
87c3a922a cciss: Fix proble... |
1422 |
} |
41ce639a1 [SCSI] cciss: con... |
1423 1424 |
addr64 = (__u64) sg_dma_address(sg); len = sg_dma_len(sg); |
87c3a922a cciss: Fix proble... |
1425 1426 1427 1428 1429 1430 1431 |
curr_sg[sg_index].Addr.lower = (__u32) (addr64 & 0x0FFFFFFFFULL); curr_sg[sg_index].Addr.upper = (__u32) ((addr64 >> 32) & 0x0FFFFFFFFULL); curr_sg[sg_index].Len = len; curr_sg[sg_index].Ext = 0; ++sg_index; |
1da177e4c Linux-2.6.12-rc2 |
1432 |
} |
87c3a922a cciss: Fix proble... |
1433 |
if (chained) |
f70dba836 cciss: use consis... |
1434 1435 |
cciss_map_sg_chain_block(h, c, sa->cmd_sg_list[c->cmdindex], |
87c3a922a cciss: Fix proble... |
1436 1437 |
(request_nsgs - (h->max_cmd_sgentries - 1)) * sizeof(SGDescriptor_struct)); |
41ce639a1 [SCSI] cciss: con... |
1438 |
} |
87c3a922a cciss: Fix proble... |
1439 1440 1441 |
/* track how many SG entries we are using */ if (request_nsgs > h->maxSG) h->maxSG = request_nsgs; |
f70dba836 cciss: use consis... |
1442 |
c->Header.SGTotal = (__u8) request_nsgs + chained; |
87c3a922a cciss: Fix proble... |
1443 |
if (request_nsgs > h->max_cmd_sgentries) |
f70dba836 cciss: use consis... |
1444 |
c->Header.SGList = h->max_cmd_sgentries; |
87c3a922a cciss: Fix proble... |
1445 |
else |
f70dba836 cciss: use consis... |
1446 |
c->Header.SGList = c->Header.SGTotal; |
1da177e4c Linux-2.6.12-rc2 |
1447 1448 1449 1450 1451 |
return; } static int |
f281233d3 SCSI host lock pu... |
1452 |
cciss_scsi_queue_command_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) |
1da177e4c Linux-2.6.12-rc2 |
1453 |
{ |
f70dba836 cciss: use consis... |
1454 1455 |
ctlr_info_t *h; int rc; |
1da177e4c Linux-2.6.12-rc2 |
1456 |
unsigned char scsi3addr[8]; |
f70dba836 cciss: use consis... |
1457 |
CommandList_struct *c; |
1da177e4c Linux-2.6.12-rc2 |
1458 1459 1460 1461 |
unsigned long flags; // Get the ptr to our adapter structure (hba[i]) out of cmd->host. // We violate cmd->host privacy here. (Is there another way?) |
f70dba836 cciss: use consis... |
1462 |
h = (ctlr_info_t *) cmd->device->host->hostdata[0]; |
1da177e4c Linux-2.6.12-rc2 |
1463 |
|
f70dba836 cciss: use consis... |
1464 |
rc = lookup_scsi3addr(h, cmd->device->channel, cmd->device->id, |
1da177e4c Linux-2.6.12-rc2 |
1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 |
cmd->device->lun, scsi3addr); if (rc != 0) { /* the scsi nexus does not match any that we presented... */ /* pretend to mid layer that we got selection timeout */ cmd->result = DID_NO_CONNECT << 16; done(cmd); /* we might want to think about registering controller itself as a processor device on the bus so sg binds to it. */ return 0; } |
1da177e4c Linux-2.6.12-rc2 |
1475 1476 |
/* Ok, we have a reasonable scsi nexus, so send the cmd down, and see what the device thinks of it. */ |
f70dba836 cciss: use consis... |
1477 1478 1479 1480 |
spin_lock_irqsave(&h->lock, flags); c = scsi_cmd_alloc(h); spin_unlock_irqrestore(&h->lock, flags); if (c == NULL) { /* trouble... */ |
b2a4a43db cciss: change pri... |
1481 1482 |
dev_warn(&h->pdev->dev, "scsi_cmd_alloc returned NULL! "); |
1da177e4c Linux-2.6.12-rc2 |
1483 1484 1485 1486 1487 1488 1489 1490 1491 |
/* FIXME: next 3 lines are -> BAD! <- */ cmd->result = DID_NO_CONNECT << 16; done(cmd); return 0; } // Fill in the command list header cmd->scsi_done = done; // save this for use by completion code |
f70dba836 cciss: use consis... |
1492 1493 |
/* save c in case we have to abort it */ cmd->host_scribble = (unsigned char *) c; |
1da177e4c Linux-2.6.12-rc2 |
1494 |
|
f70dba836 cciss: use consis... |
1495 1496 1497 1498 1499 |
c->cmd_type = CMD_SCSI; c->scsi_cmd = cmd; c->Header.ReplyQueue = 0; /* unused in simple mode */ memcpy(&c->Header.LUN.LunAddrBytes[0], &scsi3addr[0], 8); c->Header.Tag.lower = c->busaddr; /* Use k. address of cmd as tag */ |
1da177e4c Linux-2.6.12-rc2 |
1500 1501 |
// Fill in the request block... |
f70dba836 cciss: use consis... |
1502 1503 1504 1505 1506 1507 1508 |
c->Request.Timeout = 0; memset(c->Request.CDB, 0, sizeof(c->Request.CDB)); BUG_ON(cmd->cmd_len > sizeof(c->Request.CDB)); c->Request.CDBLen = cmd->cmd_len; memcpy(c->Request.CDB, cmd->cmnd, cmd->cmd_len); c->Request.Type.Type = TYPE_CMD; c->Request.Type.Attribute = ATTR_SIMPLE; |
1da177e4c Linux-2.6.12-rc2 |
1509 1510 |
switch(cmd->sc_data_direction) { |
f70dba836 cciss: use consis... |
1511 1512 1513 1514 1515 1516 1517 1518 1519 |
case DMA_TO_DEVICE: c->Request.Type.Direction = XFER_WRITE; break; case DMA_FROM_DEVICE: c->Request.Type.Direction = XFER_READ; break; case DMA_NONE: c->Request.Type.Direction = XFER_NONE; break; |
1da177e4c Linux-2.6.12-rc2 |
1520 1521 1522 1523 |
case DMA_BIDIRECTIONAL: // This can happen if a buggy application does a scsi passthru // and sets both inlen and outlen to non-zero. ( see // ../scsi/scsi_ioctl.c:scsi_ioctl_send_command() ) |
f70dba836 cciss: use consis... |
1524 |
c->Request.Type.Direction = XFER_RSVD; |
1da177e4c Linux-2.6.12-rc2 |
1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 |
// This is technically wrong, and cciss controllers should // reject it with CMD_INVALID, which is the most correct // response, but non-fibre backends appear to let it // slide by, and give the same results as if this field // were set correctly. Either way is acceptable for // our purposes here. break; default: |
b2a4a43db cciss: change pri... |
1535 1536 |
dev_warn(&h->pdev->dev, "unknown data direction: %d ", |
1da177e4c Linux-2.6.12-rc2 |
1537 1538 1539 1540 |
cmd->sc_data_direction); BUG(); break; } |
f70dba836 cciss: use consis... |
1541 1542 |
cciss_scatter_gather(h, c, cmd); enqueue_cmd_and_start_io(h, c); |
1da177e4c Linux-2.6.12-rc2 |
1543 1544 1545 |
/* the cmd'll come back via intr handler in complete_scsi_command() */ return 0; } |
f281233d3 SCSI host lock pu... |
1546 |
static DEF_SCSI_QCMD(cciss_scsi_queue_command) |
f70dba836 cciss: use consis... |
1547 |
static void cciss_unregister_scsi(ctlr_info_t *h) |
1da177e4c Linux-2.6.12-rc2 |
1548 1549 1550 1551 1552 1553 |
{ struct cciss_scsi_adapter_data_t *sa; struct cciss_scsi_cmd_stack_t *stk; unsigned long flags; /* we are being forcibly unloaded, and may not refuse. */ |
f70dba836 cciss: use consis... |
1554 1555 |
spin_lock_irqsave(&h->lock, flags); sa = h->scsi_ctlr; |
1da177e4c Linux-2.6.12-rc2 |
1556 1557 1558 1559 |
stk = &sa->cmd_stack; /* if we weren't ever actually registered, don't unregister */ if (sa->registered) { |
f70dba836 cciss: use consis... |
1560 |
spin_unlock_irqrestore(&h->lock, flags); |
1da177e4c Linux-2.6.12-rc2 |
1561 1562 |
scsi_remove_host(sa->scsi_host); scsi_host_put(sa->scsi_host); |
f70dba836 cciss: use consis... |
1563 |
spin_lock_irqsave(&h->lock, flags); |
1da177e4c Linux-2.6.12-rc2 |
1564 1565 1566 1567 1568 |
} /* set scsi_host to NULL so our detect routine will find us on register */ sa->scsi_host = NULL; |
f70dba836 cciss: use consis... |
1569 1570 |
spin_unlock_irqrestore(&h->lock, flags); scsi_cmd_stack_free(h); |
1da177e4c Linux-2.6.12-rc2 |
1571 |
kfree(sa); |
1da177e4c Linux-2.6.12-rc2 |
1572 |
} |
f70dba836 cciss: use consis... |
1573 |
static int cciss_engage_scsi(ctlr_info_t *h) |
1da177e4c Linux-2.6.12-rc2 |
1574 1575 1576 1577 |
{ struct cciss_scsi_adapter_data_t *sa; struct cciss_scsi_cmd_stack_t *stk; unsigned long flags; |
f70dba836 cciss: use consis... |
1578 1579 |
spin_lock_irqsave(&h->lock, flags); sa = h->scsi_ctlr; |
1da177e4c Linux-2.6.12-rc2 |
1580 |
stk = &sa->cmd_stack; |
f4a93bcda cciss: change the... |
1581 |
if (sa->registered) { |
b2a4a43db cciss: change pri... |
1582 1583 |
dev_info(&h->pdev->dev, "SCSI subsystem already engaged. "); |
f70dba836 cciss: use consis... |
1584 |
spin_unlock_irqrestore(&h->lock, flags); |
8721c81f6 cciss: Fix weird ... |
1585 |
return -ENXIO; |
1da177e4c Linux-2.6.12-rc2 |
1586 |
} |
f4a93bcda cciss: change the... |
1587 |
sa->registered = 1; |
f70dba836 cciss: use consis... |
1588 1589 1590 |
spin_unlock_irqrestore(&h->lock, flags); cciss_update_non_disk_devices(h, -1); cciss_scsi_detect(h); |
1da177e4c Linux-2.6.12-rc2 |
1591 1592 1593 1594 |
return 0; } static void |
f70dba836 cciss: use consis... |
1595 |
cciss_seq_tape_report(struct seq_file *seq, ctlr_info_t *h) |
1da177e4c Linux-2.6.12-rc2 |
1596 1597 |
{ unsigned long flags; |
1da177e4c Linux-2.6.12-rc2 |
1598 |
|
f70dba836 cciss: use consis... |
1599 |
CPQ_TAPE_LOCK(h, flags); |
89b6e7437 resubmit: cciss: ... |
1600 |
seq_printf(seq, |
b9f0bd089 [PATCH] cciss: SC... |
1601 1602 1603 |
"Sequential access devices: %d ", |
f70dba836 cciss: use consis... |
1604 1605 |
ccissscsi[h->ctlr].ndevices); CPQ_TAPE_UNLOCK(h, flags); |
1da177e4c Linux-2.6.12-rc2 |
1606 |
} |
88f627ae3 cciss: fix SCSI d... |
1607 1608 1609 1610 1611 1612 1613 |
static int wait_for_device_to_become_ready(ctlr_info_t *h, unsigned char lunaddr[]) { int rc; int count = 0; int waittime = HZ; CommandList_struct *c; |
6b4d96b87 cciss: separate c... |
1614 |
c = cmd_alloc(h); |
88f627ae3 cciss: fix SCSI d... |
1615 |
if (!c) { |
b2a4a43db cciss: change pri... |
1616 1617 1618 |
dev_warn(&h->pdev->dev, "out of memory in " "wait_for_device_to_become_ready. "); |
88f627ae3 cciss: fix SCSI d... |
1619 1620 1621 1622 1623 1624 1625 1626 1627 |
return IO_ERROR; } /* Send test unit ready until device ready, or give up. */ while (count < 20) { /* Wait for a bit. do this first, because if we send * the TUR right away, the reset will just abort it. */ |
40df6ae42 cciss: Use schedu... |
1628 |
schedule_timeout_uninterruptible(waittime); |
88f627ae3 cciss: fix SCSI d... |
1629 1630 1631 1632 1633 1634 1635 |
count++; /* Increase wait time with each try, up to a point. */ if (waittime < (HZ * 30)) waittime = waittime * 2; /* Send the Test Unit Ready */ |
f70dba836 cciss: use consis... |
1636 |
rc = fill_cmd(h, c, TEST_UNIT_READY, NULL, 0, 0, |
88f627ae3 cciss: fix SCSI d... |
1637 |
lunaddr, TYPE_CMD); |
85cc61ae4 cciss: change SCS... |
1638 1639 1640 1641 |
if (rc == 0) rc = sendcmd_withirq_core(h, c, 0); (void) process_sendcmd_error(h, c); |
88f627ae3 cciss: fix SCSI d... |
1642 |
|
3969251b8 cciss: decode uni... |
1643 1644 |
if (rc != 0) goto retry_tur; |
88f627ae3 cciss: fix SCSI d... |
1645 |
|
3969251b8 cciss: decode uni... |
1646 |
if (c->err_info->CommandStatus == CMD_SUCCESS) |
88f627ae3 cciss: fix SCSI d... |
1647 |
break; |
3969251b8 cciss: decode uni... |
1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 |
if (c->err_info->CommandStatus == CMD_TARGET_STATUS && c->err_info->ScsiStatus == SAM_STAT_CHECK_CONDITION) { if (c->err_info->SenseInfo[2] == NO_SENSE) break; if (c->err_info->SenseInfo[2] == UNIT_ATTENTION) { unsigned char asc; asc = c->err_info->SenseInfo[12]; check_for_unit_attention(h, c); if (asc == POWER_OR_RESET) break; } } retry_tur: |
b2a4a43db cciss: change pri... |
1661 |
dev_warn(&h->pdev->dev, "Waiting %d secs " |
88f627ae3 cciss: fix SCSI d... |
1662 1663 |
"for device to become ready. ", |
b2a4a43db cciss: change pri... |
1664 |
waittime / HZ); |
88f627ae3 cciss: fix SCSI d... |
1665 1666 1667 1668 |
rc = 1; /* device not ready. */ } if (rc) |
b2a4a43db cciss: change pri... |
1669 1670 |
dev_warn(&h->pdev->dev, "giving up on device. "); |
88f627ae3 cciss: fix SCSI d... |
1671 |
else |
b2a4a43db cciss: change pri... |
1672 1673 |
dev_warn(&h->pdev->dev, "device is ready. "); |
88f627ae3 cciss: fix SCSI d... |
1674 |
|
6b4d96b87 cciss: separate c... |
1675 |
cmd_free(h, c); |
88f627ae3 cciss: fix SCSI d... |
1676 1677 |
return rc; } |
89b6e7437 resubmit: cciss: ... |
1678 |
|
3da8b713d [SCSI] cciss: scs... |
1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 |
/* Need at least one of these error handlers to keep ../scsi/hosts.c from * complaining. Doing a host- or bus-reset can't do anything good here. * Despite what it might say in scsi_error.c, there may well be commands * on the controller, as the cciss driver registers twice, once as a block * device for the logical drives, and once as a scsi device, for any tape * drives. So we know there are no commands out on the tape drives, but we * don't know there are no commands on the controller, and it is likely * that there probably are, as the cciss block device is most commonly used * as a boot device (embedded controller on HP/Compaq systems.) */ static int cciss_eh_device_reset_handler(struct scsi_cmnd *scsicmd) { int rc; CommandList_struct *cmd_in_trouble; |
88f627ae3 cciss: fix SCSI d... |
1694 |
unsigned char lunaddr[8]; |
f70dba836 cciss: use consis... |
1695 |
ctlr_info_t *h; |
3da8b713d [SCSI] cciss: scs... |
1696 1697 |
/* find the controller to which the command to be aborted was sent */ |
f70dba836 cciss: use consis... |
1698 1699 |
h = (ctlr_info_t *) scsicmd->device->host->hostdata[0]; if (h == NULL) /* paranoia */ |
3da8b713d [SCSI] cciss: scs... |
1700 |
return FAILED; |
b2a4a43db cciss: change pri... |
1701 1702 |
dev_warn(&h->pdev->dev, "resetting tape drive or medium changer. "); |
3da8b713d [SCSI] cciss: scs... |
1703 1704 |
/* find the command that's giving us trouble */ cmd_in_trouble = (CommandList_struct *) scsicmd->host_scribble; |
88f627ae3 cciss: fix SCSI d... |
1705 |
if (cmd_in_trouble == NULL) /* paranoia */ |
3da8b713d [SCSI] cciss: scs... |
1706 |
return FAILED; |
88f627ae3 cciss: fix SCSI d... |
1707 |
memcpy(lunaddr, &cmd_in_trouble->Header.LUN.LunAddrBytes[0], 8); |
3da8b713d [SCSI] cciss: scs... |
1708 |
/* send a reset to the SCSI LUN which the command was sent to */ |
f70dba836 cciss: use consis... |
1709 |
rc = sendcmd_withirq(h, CCISS_RESET_MSG, NULL, 0, 0, lunaddr, |
3da8b713d [SCSI] cciss: scs... |
1710 |
TYPE_MSG); |
f70dba836 cciss: use consis... |
1711 |
if (rc == 0 && wait_for_device_to_become_ready(h, lunaddr) == 0) |
3da8b713d [SCSI] cciss: scs... |
1712 |
return SUCCESS; |
b2a4a43db cciss: change pri... |
1713 1714 |
dev_warn(&h->pdev->dev, "resetting device failed. "); |
3da8b713d [SCSI] cciss: scs... |
1715 1716 1717 1718 1719 1720 1721 |
return FAILED; } static int cciss_eh_abort_handler(struct scsi_cmnd *scsicmd) { int rc; CommandList_struct *cmd_to_abort; |
85cc61ae4 cciss: change SCS... |
1722 |
unsigned char lunaddr[8]; |
f70dba836 cciss: use consis... |
1723 |
ctlr_info_t *h; |
3da8b713d [SCSI] cciss: scs... |
1724 1725 |
/* find the controller to which the command to be aborted was sent */ |
f70dba836 cciss: use consis... |
1726 1727 |
h = (ctlr_info_t *) scsicmd->device->host->hostdata[0]; if (h == NULL) /* paranoia */ |
3da8b713d [SCSI] cciss: scs... |
1728 |
return FAILED; |
b2a4a43db cciss: change pri... |
1729 1730 |
dev_warn(&h->pdev->dev, "aborting tardy SCSI cmd "); |
3da8b713d [SCSI] cciss: scs... |
1731 1732 1733 1734 1735 |
/* find the command to be aborted */ cmd_to_abort = (CommandList_struct *) scsicmd->host_scribble; if (cmd_to_abort == NULL) /* paranoia */ return FAILED; |
85cc61ae4 cciss: change SCS... |
1736 |
memcpy(lunaddr, &cmd_to_abort->Header.LUN.LunAddrBytes[0], 8); |
f70dba836 cciss: use consis... |
1737 |
rc = sendcmd_withirq(h, CCISS_ABORT_MSG, &cmd_to_abort->Header.Tag, |
85cc61ae4 cciss: change SCS... |
1738 |
0, 0, lunaddr, TYPE_MSG); |
3da8b713d [SCSI] cciss: scs... |
1739 1740 1741 1742 1743 |
if (rc == 0) return SUCCESS; return FAILED; } |
1da177e4c Linux-2.6.12-rc2 |
1744 1745 1746 1747 1748 |
#else /* no CONFIG_CISS_SCSI_TAPE */ /* If no tape support, then these become defined out of existence */ #define cciss_scsi_setup(cntl_num) |
0007a4c90 cciss: auto engag... |
1749 |
#define cciss_engage_scsi(h) |
1da177e4c Linux-2.6.12-rc2 |
1750 1751 |
#endif /* CONFIG_CISS_SCSI_TAPE */ |