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[PATCH] W1: possible cleanups
[linux-2.6/verdex.git] / drivers / scsi / aacraid / aachba.c
blobea9e038813eb6092f82b2cc506675f01c24b46ec
1 /*
2 * Adaptec AAC series RAID controller driver
3 * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com>
4 *
5 * based on the old aacraid driver that is..
6 * Adaptec aacraid device driver for Linux.
7 *
8 * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2, or (at your option)
13 * any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; see the file COPYING. If not, write to
22 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
23 *
24 */
25
26 #include <linux/kernel.h>
27 #include <linux/init.h>
28 #include <linux/types.h>
29 #include <linux/sched.h>
30 #include <linux/pci.h>
31 #include <linux/spinlock.h>
32 #include <linux/slab.h>
33 #include <linux/completion.h>
34 #include <linux/blkdev.h>
35 #include <linux/dma-mapping.h>
36 #include <asm/semaphore.h>
37 #include <asm/uaccess.h>
38
39 #include <scsi/scsi.h>
40 #include <scsi/scsi_cmnd.h>
41 #include <scsi/scsi_device.h>
42 #include <scsi/scsi_host.h>
43
44 #include "aacraid.h"
45
46 /* values for inqd_pdt: Peripheral device type in plain English */
47 #define INQD_PDT_DA 0x00 /* Direct-access (DISK) device */
48 #define INQD_PDT_PROC 0x03 /* Processor device */
49 #define INQD_PDT_CHNGR 0x08 /* Changer (jukebox, scsi2) */
50 #define INQD_PDT_COMM 0x09 /* Communication device (scsi2) */
51 #define INQD_PDT_NOLUN2 0x1f /* Unknown Device (scsi2) */
52 #define INQD_PDT_NOLUN 0x7f /* Logical Unit Not Present */
53
54 #define INQD_PDT_DMASK 0x1F /* Peripheral Device Type Mask */
55 #define INQD_PDT_QMASK 0xE0 /* Peripheral Device Qualifer Mask */
56
57 /*
58 * Sense codes
59 */
60
61 #define SENCODE_NO_SENSE 0x00
62 #define SENCODE_END_OF_DATA 0x00
63 #define SENCODE_BECOMING_READY 0x04
64 #define SENCODE_INIT_CMD_REQUIRED 0x04
65 #define SENCODE_PARAM_LIST_LENGTH_ERROR 0x1A
66 #define SENCODE_INVALID_COMMAND 0x20
67 #define SENCODE_LBA_OUT_OF_RANGE 0x21
68 #define SENCODE_INVALID_CDB_FIELD 0x24
69 #define SENCODE_LUN_NOT_SUPPORTED 0x25
70 #define SENCODE_INVALID_PARAM_FIELD 0x26
71 #define SENCODE_PARAM_NOT_SUPPORTED 0x26
72 #define SENCODE_PARAM_VALUE_INVALID 0x26
73 #define SENCODE_RESET_OCCURRED 0x29
74 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x3E
75 #define SENCODE_INQUIRY_DATA_CHANGED 0x3F
76 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x39
77 #define SENCODE_DIAGNOSTIC_FAILURE 0x40
78 #define SENCODE_INTERNAL_TARGET_FAILURE 0x44
79 #define SENCODE_INVALID_MESSAGE_ERROR 0x49
80 #define SENCODE_LUN_FAILED_SELF_CONFIG 0x4c
81 #define SENCODE_OVERLAPPED_COMMAND 0x4E
82
83 /*
84 * Additional sense codes
85 */
86
87 #define ASENCODE_NO_SENSE 0x00
88 #define ASENCODE_END_OF_DATA 0x05
89 #define ASENCODE_BECOMING_READY 0x01
90 #define ASENCODE_INIT_CMD_REQUIRED 0x02
91 #define ASENCODE_PARAM_LIST_LENGTH_ERROR 0x00
92 #define ASENCODE_INVALID_COMMAND 0x00
93 #define ASENCODE_LBA_OUT_OF_RANGE 0x00
94 #define ASENCODE_INVALID_CDB_FIELD 0x00
95 #define ASENCODE_LUN_NOT_SUPPORTED 0x00
96 #define ASENCODE_INVALID_PARAM_FIELD 0x00
97 #define ASENCODE_PARAM_NOT_SUPPORTED 0x01
98 #define ASENCODE_PARAM_VALUE_INVALID 0x02
99 #define ASENCODE_RESET_OCCURRED 0x00
100 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x00
101 #define ASENCODE_INQUIRY_DATA_CHANGED 0x03
102 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x00
103 #define ASENCODE_DIAGNOSTIC_FAILURE 0x80
104 #define ASENCODE_INTERNAL_TARGET_FAILURE 0x00
105 #define ASENCODE_INVALID_MESSAGE_ERROR 0x00
106 #define ASENCODE_LUN_FAILED_SELF_CONFIG 0x00
107 #define ASENCODE_OVERLAPPED_COMMAND 0x00
108
109 #define BYTE0(x) (unsigned char)(x)
110 #define BYTE1(x) (unsigned char)((x) >> 8)
111 #define BYTE2(x) (unsigned char)((x) >> 16)
112 #define BYTE3(x) (unsigned char)((x) >> 24)
113
114 /*------------------------------------------------------------------------------
115 * S T R U C T S / T Y P E D E F S
116 *----------------------------------------------------------------------------*/
117 /* SCSI inquiry data */
118 struct inquiry_data {
119 u8 inqd_pdt; /* Peripheral qualifier | Peripheral Device Type */
120 u8 inqd_dtq; /* RMB | Device Type Qualifier */
121 u8 inqd_ver; /* ISO version | ECMA version | ANSI-approved version */
122 u8 inqd_rdf; /* AENC | TrmIOP | Response data format */
123 u8 inqd_len; /* Additional length (n-4) */
124 u8 inqd_pad1[2];/* Reserved - must be zero */
125 u8 inqd_pad2; /* RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */
126 u8 inqd_vid[8]; /* Vendor ID */
127 u8 inqd_pid[16];/* Product ID */
128 u8 inqd_prl[4]; /* Product Revision Level */
129 };
130
131 /*
132 * M O D U L E G L O B A L S
133 */
134
135 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
136 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
137 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
138 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
139 #ifdef AAC_DETAILED_STATUS_INFO
140 static char *aac_get_status_string(u32 status);
141 #endif
142
143 /*
144 * Non dasd selection is handled entirely in aachba now
145 */
146
147 static int nondasd = -1;
148 static int dacmode = -1;
149
150 static int commit = -1;
151 int startup_timeout = 180;
152 int aif_timeout = 120;
153
154 module_param(nondasd, int, S_IRUGO|S_IWUSR);
155 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
156 module_param(dacmode, int, S_IRUGO|S_IWUSR);
157 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
158 module_param(commit, int, S_IRUGO|S_IWUSR);
159 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the adapter for foreign arrays.\nThis is typically needed in systems that do not have a BIOS. 0=off, 1=on");
160 module_param(startup_timeout, int, S_IRUGO|S_IWUSR);
161 MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for adapter to have it's kernel up and\nrunning. This is typically adjusted for large systems that do not have a BIOS.");
162 module_param(aif_timeout, int, S_IRUGO|S_IWUSR);
163 MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for applications to pick up AIFs before\nderegistering them. This is typically adjusted for heavily burdened systems.");
164
165 int numacb = -1;
166 module_param(numacb, int, S_IRUGO|S_IWUSR);
167 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control blocks (FIB) allocated. Valid values are 512 and down. Default is to use suggestion from Firmware.");
168
169 int acbsize = -1;
170 module_param(acbsize, int, S_IRUGO|S_IWUSR);
171 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB) size. Valid values are 512, 2048, 4096 and 8192. Default is to use suggestion from Firmware.");
172 /**
173 * aac_get_config_status - check the adapter configuration
174 * @common: adapter to query
175 *
176 * Query config status, and commit the configuration if needed.
177 */
178 int aac_get_config_status(struct aac_dev *dev)
179 {
180 int status = 0;
181 struct fib * fibptr;
182
183 if (!(fibptr = aac_fib_alloc(dev)))
184 return -ENOMEM;
185
186 aac_fib_init(fibptr);
187 {
188 struct aac_get_config_status *dinfo;
189 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
190
191 dinfo->command = cpu_to_le32(VM_ContainerConfig);
192 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
193 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
194 }
195
196 status = aac_fib_send(ContainerCommand,
197 fibptr,
198 sizeof (struct aac_get_config_status),
199 FsaNormal,
200 1, 1,
201 NULL, NULL);
202 if (status < 0 ) {
203 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
204 } else {
205 struct aac_get_config_status_resp *reply
206 = (struct aac_get_config_status_resp *) fib_data(fibptr);
207 dprintk((KERN_WARNING
208 "aac_get_config_status: response=%d status=%d action=%d\n",
209 le32_to_cpu(reply->response),
210 le32_to_cpu(reply->status),
211 le32_to_cpu(reply->data.action)));
212 if ((le32_to_cpu(reply->response) != ST_OK) ||
213 (le32_to_cpu(reply->status) != CT_OK) ||
214 (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
215 printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
216 status = -EINVAL;
217 }
218 }
219 aac_fib_complete(fibptr);
220 /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
221 if (status >= 0) {
222 if (commit == 1) {
223 struct aac_commit_config * dinfo;
224 aac_fib_init(fibptr);
225 dinfo = (struct aac_commit_config *) fib_data(fibptr);
226
227 dinfo->command = cpu_to_le32(VM_ContainerConfig);
228 dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
229
230 status = aac_fib_send(ContainerCommand,
231 fibptr,
232 sizeof (struct aac_commit_config),
233 FsaNormal,
234 1, 1,
235 NULL, NULL);
236 aac_fib_complete(fibptr);
237 } else if (commit == 0) {
238 printk(KERN_WARNING
239 "aac_get_config_status: Foreign device configurations are being ignored\n");
240 }
241 }
242 aac_fib_free(fibptr);
243 return status;
244 }
245
246 /**
247 * aac_get_containers - list containers
248 * @common: adapter to probe
249 *
250 * Make a list of all containers on this controller
251 */
252 int aac_get_containers(struct aac_dev *dev)
253 {
254 struct fsa_dev_info *fsa_dev_ptr;
255 u32 index;
256 int status = 0;
257 struct fib * fibptr;
258 unsigned instance;
259 struct aac_get_container_count *dinfo;
260 struct aac_get_container_count_resp *dresp;
261 int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
262
263 instance = dev->scsi_host_ptr->unique_id;
264
265 if (!(fibptr = aac_fib_alloc(dev)))
266 return -ENOMEM;
267
268 aac_fib_init(fibptr);
269 dinfo = (struct aac_get_container_count *) fib_data(fibptr);
270 dinfo->command = cpu_to_le32(VM_ContainerConfig);
271 dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
272
273 status = aac_fib_send(ContainerCommand,
274 fibptr,
275 sizeof (struct aac_get_container_count),
276 FsaNormal,
277 1, 1,
278 NULL, NULL);
279 if (status >= 0) {
280 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
281 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
282 aac_fib_complete(fibptr);
283 }
284
285 if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
286 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
287 fsa_dev_ptr = (struct fsa_dev_info *) kmalloc(
288 sizeof(*fsa_dev_ptr) * maximum_num_containers, GFP_KERNEL);
289 if (!fsa_dev_ptr) {
290 aac_fib_free(fibptr);
291 return -ENOMEM;
292 }
293 memset(fsa_dev_ptr, 0, sizeof(*fsa_dev_ptr) * maximum_num_containers);
294
295 dev->fsa_dev = fsa_dev_ptr;
296 dev->maximum_num_containers = maximum_num_containers;
297
298 for (index = 0; index < dev->maximum_num_containers; index++) {
299 struct aac_query_mount *dinfo;
300 struct aac_mount *dresp;
301
302 fsa_dev_ptr[index].devname[0] = '\0';
303
304 aac_fib_init(fibptr);
305 dinfo = (struct aac_query_mount *) fib_data(fibptr);
306
307 dinfo->command = cpu_to_le32(VM_NameServe);
308 dinfo->count = cpu_to_le32(index);
309 dinfo->type = cpu_to_le32(FT_FILESYS);
310
311 status = aac_fib_send(ContainerCommand,
312 fibptr,
313 sizeof (struct aac_query_mount),
314 FsaNormal,
315 1, 1,
316 NULL, NULL);
317 if (status < 0 ) {
318 printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
319 break;
320 }
321 dresp = (struct aac_mount *)fib_data(fibptr);
322
323 if ((le32_to_cpu(dresp->status) == ST_OK) &&
324 (le32_to_cpu(dresp->mnt[0].vol) == CT_NONE)) {
325 dinfo->command = cpu_to_le32(VM_NameServe64);
326 dinfo->count = cpu_to_le32(index);
327 dinfo->type = cpu_to_le32(FT_FILESYS);
328
329 if (aac_fib_send(ContainerCommand,
330 fibptr,
331 sizeof(struct aac_query_mount),
332 FsaNormal,
333 1, 1,
334 NULL, NULL) < 0)
335 continue;
336 } else
337 dresp->mnt[0].capacityhigh = 0;
338
339 dprintk ((KERN_DEBUG
340 "VM_NameServe cid=%d status=%d vol=%d state=%d cap=%llu\n",
341 (int)index, (int)le32_to_cpu(dresp->status),
342 (int)le32_to_cpu(dresp->mnt[0].vol),
343 (int)le32_to_cpu(dresp->mnt[0].state),
344 ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
345 (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32)));
346 if ((le32_to_cpu(dresp->status) == ST_OK) &&
347 (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
348 (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
349 fsa_dev_ptr[index].valid = 1;
350 fsa_dev_ptr[index].type = le32_to_cpu(dresp->mnt[0].vol);
351 fsa_dev_ptr[index].size
352 = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
353 (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
354 if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
355 fsa_dev_ptr[index].ro = 1;
356 }
357 aac_fib_complete(fibptr);
358 /*
359 * If there are no more containers, then stop asking.
360 */
361 if ((index + 1) >= le32_to_cpu(dresp->count)){
362 break;
363 }
364 }
365 aac_fib_free(fibptr);
366 return status;
367 }
368
369 static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigned int offset, unsigned int len)
370 {
371 void *buf;
372 unsigned int transfer_len;
373 struct scatterlist *sg = scsicmd->request_buffer;
374
375 if (scsicmd->use_sg) {
376 buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
377 transfer_len = min(sg->length, len + offset);
378 } else {
379 buf = scsicmd->request_buffer;
380 transfer_len = min(scsicmd->request_bufflen, len + offset);
381 }
382
383 memcpy(buf + offset, data, transfer_len - offset);
384
385 if (scsicmd->use_sg)
386 kunmap_atomic(buf - sg->offset, KM_IRQ0);
387
388 }
389
390 static void get_container_name_callback(void *context, struct fib * fibptr)
391 {
392 struct aac_get_name_resp * get_name_reply;
393 struct scsi_cmnd * scsicmd;
394
395 scsicmd = (struct scsi_cmnd *) context;
396 scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
397
398 dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
399 if (fibptr == NULL)
400 BUG();
401
402 get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
403 /* Failure is irrelevant, using default value instead */
404 if ((le32_to_cpu(get_name_reply->status) == CT_OK)
405 && (get_name_reply->data[0] != '\0')) {
406 char *sp = get_name_reply->data;
407 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
408 while (*sp == ' ')
409 ++sp;
410 if (*sp) {
411 char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
412 int count = sizeof(d);
413 char *dp = d;
414 do {
415 *dp++ = (*sp) ? *sp++ : ' ';
416 } while (--count > 0);
417 aac_internal_transfer(scsicmd, d,
418 offsetof(struct inquiry_data, inqd_pid), sizeof(d));
419 }
420 }
421
422 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
423
424 aac_fib_complete(fibptr);
425 aac_fib_free(fibptr);
426 scsicmd->scsi_done(scsicmd);
427 }
428
429 /**
430 * aac_get_container_name - get container name, none blocking.
431 */
432 static int aac_get_container_name(struct scsi_cmnd * scsicmd, int cid)
433 {
434 int status;
435 struct aac_get_name *dinfo;
436 struct fib * cmd_fibcontext;
437 struct aac_dev * dev;
438
439 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
440
441 if (!(cmd_fibcontext = aac_fib_alloc(dev)))
442 return -ENOMEM;
443
444 aac_fib_init(cmd_fibcontext);
445 dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
446
447 dinfo->command = cpu_to_le32(VM_ContainerConfig);
448 dinfo->type = cpu_to_le32(CT_READ_NAME);
449 dinfo->cid = cpu_to_le32(cid);
450 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
451
452 status = aac_fib_send(ContainerCommand,
453 cmd_fibcontext,
454 sizeof (struct aac_get_name),
455 FsaNormal,
456 0, 1,
457 (fib_callback) get_container_name_callback,
458 (void *) scsicmd);
459
460 /*
461 * Check that the command queued to the controller
462 */
463 if (status == -EINPROGRESS) {
464 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
465 return 0;
466 }
467
468 printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
469 aac_fib_complete(cmd_fibcontext);
470 aac_fib_free(cmd_fibcontext);
471 return -1;
472 }
473
474 /**
475 * aac_probe_container - query a logical volume
476 * @dev: device to query
477 * @cid: container identifier
478 *
479 * Queries the controller about the given volume. The volume information
480 * is updated in the struct fsa_dev_info structure rather than returned.
481 */
482
483 int aac_probe_container(struct aac_dev *dev, int cid)
484 {
485 struct fsa_dev_info *fsa_dev_ptr;
486 int status;
487 struct aac_query_mount *dinfo;
488 struct aac_mount *dresp;
489 struct fib * fibptr;
490 unsigned instance;
491
492 fsa_dev_ptr = dev->fsa_dev;
493 instance = dev->scsi_host_ptr->unique_id;
494
495 if (!(fibptr = aac_fib_alloc(dev)))
496 return -ENOMEM;
497
498 aac_fib_init(fibptr);
499
500 dinfo = (struct aac_query_mount *)fib_data(fibptr);
501
502 dinfo->command = cpu_to_le32(VM_NameServe);
503 dinfo->count = cpu_to_le32(cid);
504 dinfo->type = cpu_to_le32(FT_FILESYS);
505
506 status = aac_fib_send(ContainerCommand,
507 fibptr,
508 sizeof(struct aac_query_mount),
509 FsaNormal,
510 1, 1,
511 NULL, NULL);
512 if (status < 0) {
513 printk(KERN_WARNING "aacraid: aac_probe_container query failed.\n");
514 goto error;
515 }
516
517 dresp = (struct aac_mount *) fib_data(fibptr);
518
519 if ((le32_to_cpu(dresp->status) == ST_OK) &&
520 (le32_to_cpu(dresp->mnt[0].vol) == CT_NONE)) {
521 dinfo->command = cpu_to_le32(VM_NameServe64);
522 dinfo->count = cpu_to_le32(cid);
523 dinfo->type = cpu_to_le32(FT_FILESYS);
524
525 if (aac_fib_send(ContainerCommand,
526 fibptr,
527 sizeof(struct aac_query_mount),
528 FsaNormal,
529 1, 1,
530 NULL, NULL) < 0)
531 goto error;
532 } else
533 dresp->mnt[0].capacityhigh = 0;
534
535 if ((le32_to_cpu(dresp->status) == ST_OK) &&
536 (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
537 (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
538 fsa_dev_ptr[cid].valid = 1;
539 fsa_dev_ptr[cid].type = le32_to_cpu(dresp->mnt[0].vol);
540 fsa_dev_ptr[cid].size
541 = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
542 (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
543 if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
544 fsa_dev_ptr[cid].ro = 1;
545 }
546
547 error:
548 aac_fib_complete(fibptr);
549 aac_fib_free(fibptr);
550
551 return status;
552 }
553
554 /* Local Structure to set SCSI inquiry data strings */
555 struct scsi_inq {
556 char vid[8]; /* Vendor ID */
557 char pid[16]; /* Product ID */
558 char prl[4]; /* Product Revision Level */
559 };
560
561 /**
562 * InqStrCopy - string merge
563 * @a: string to copy from
564 * @b: string to copy to
565 *
566 * Copy a String from one location to another
567 * without copying \0
568 */
569
570 static void inqstrcpy(char *a, char *b)
571 {
572
573 while(*a != (char)0)
574 *b++ = *a++;
575 }
576
577 static char *container_types[] = {
578 "None",
579 "Volume",
580 "Mirror",
581 "Stripe",
582 "RAID5",
583 "SSRW",
584 "SSRO",
585 "Morph",
586 "Legacy",
587 "RAID4",
588 "RAID10",
589 "RAID00",
590 "V-MIRRORS",
591 "PSEUDO R4",
592 "RAID50",
593 "RAID5D",
594 "RAID5D0",
595 "RAID1E",
596 "RAID6",
597 "RAID60",
598 "Unknown"
599 };
600
601
602
603 /* Function: setinqstr
604 *
605 * Arguments: [1] pointer to void [1] int
606 *
607 * Purpose: Sets SCSI inquiry data strings for vendor, product
608 * and revision level. Allows strings to be set in platform dependant
609 * files instead of in OS dependant driver source.
610 */
611
612 static void setinqstr(struct aac_dev *dev, void *data, int tindex)
613 {
614 struct scsi_inq *str;
615
616 str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
617 memset(str, ' ', sizeof(*str));
618
619 if (dev->supplement_adapter_info.AdapterTypeText[0]) {
620 char * cp = dev->supplement_adapter_info.AdapterTypeText;
621 int c = sizeof(str->vid);
622 while (*cp && *cp != ' ' && --c)
623 ++cp;
624 c = *cp;
625 *cp = '\0';
626 inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
627 str->vid);
628 *cp = c;
629 while (*cp && *cp != ' ')
630 ++cp;
631 while (*cp == ' ')
632 ++cp;
633 /* last six chars reserved for vol type */
634 c = 0;
635 if (strlen(cp) > sizeof(str->pid)) {
636 c = cp[sizeof(str->pid)];
637 cp[sizeof(str->pid)] = '\0';
638 }
639 inqstrcpy (cp, str->pid);
640 if (c)
641 cp[sizeof(str->pid)] = c;
642 } else {
643 struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
644
645 inqstrcpy (mp->vname, str->vid);
646 /* last six chars reserved for vol type */
647 inqstrcpy (mp->model, str->pid);
648 }
649
650 if (tindex < ARRAY_SIZE(container_types)){
651 char *findit = str->pid;
652
653 for ( ; *findit != ' '; findit++); /* walk till we find a space */
654 /* RAID is superfluous in the context of a RAID device */
655 if (memcmp(findit-4, "RAID", 4) == 0)
656 *(findit -= 4) = ' ';
657 if (((findit - str->pid) + strlen(container_types[tindex]))
658 < (sizeof(str->pid) + sizeof(str->prl)))
659 inqstrcpy (container_types[tindex], findit + 1);
660 }
661 inqstrcpy ("V1.0", str->prl);
662 }
663
664 static void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
665 u8 a_sense_code, u8 incorrect_length,
666 u8 bit_pointer, u16 field_pointer,
667 u32 residue)
668 {
669 sense_buf[0] = 0xF0; /* Sense data valid, err code 70h (current error) */
670 sense_buf[1] = 0; /* Segment number, always zero */
671
672 if (incorrect_length) {
673 sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
674 sense_buf[3] = BYTE3(residue);
675 sense_buf[4] = BYTE2(residue);
676 sense_buf[5] = BYTE1(residue);
677 sense_buf[6] = BYTE0(residue);
678 } else
679 sense_buf[2] = sense_key; /* Sense key */
680
681 if (sense_key == ILLEGAL_REQUEST)
682 sense_buf[7] = 10; /* Additional sense length */
683 else
684 sense_buf[7] = 6; /* Additional sense length */
685
686 sense_buf[12] = sense_code; /* Additional sense code */
687 sense_buf[13] = a_sense_code; /* Additional sense code qualifier */
688 if (sense_key == ILLEGAL_REQUEST) {
689 sense_buf[15] = 0;
690
691 if (sense_code == SENCODE_INVALID_PARAM_FIELD)
692 sense_buf[15] = 0x80;/* Std sense key specific field */
693 /* Illegal parameter is in the parameter block */
694
695 if (sense_code == SENCODE_INVALID_CDB_FIELD)
696 sense_buf[15] = 0xc0;/* Std sense key specific field */
697 /* Illegal parameter is in the CDB block */
698 sense_buf[15] |= bit_pointer;
699 sense_buf[16] = field_pointer >> 8; /* MSB */
700 sense_buf[17] = field_pointer; /* LSB */
701 }
702 }
703
704 int aac_get_adapter_info(struct aac_dev* dev)
705 {
706 struct fib* fibptr;
707 int rcode;
708 u32 tmp;
709 struct aac_adapter_info *info;
710 struct aac_bus_info *command;
711 struct aac_bus_info_response *bus_info;
712
713 if (!(fibptr = aac_fib_alloc(dev)))
714 return -ENOMEM;
715
716 aac_fib_init(fibptr);
717 info = (struct aac_adapter_info *) fib_data(fibptr);
718 memset(info,0,sizeof(*info));
719
720 rcode = aac_fib_send(RequestAdapterInfo,
721 fibptr,
722 sizeof(*info),
723 FsaNormal,
724 -1, 1, /* First `interrupt' command uses special wait */
725 NULL,
726 NULL);
727
728 if (rcode < 0) {
729 aac_fib_complete(fibptr);
730 aac_fib_free(fibptr);
731 return rcode;
732 }
733 memcpy(&dev->adapter_info, info, sizeof(*info));
734
735 if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
736 struct aac_supplement_adapter_info * info;
737
738 aac_fib_init(fibptr);
739
740 info = (struct aac_supplement_adapter_info *) fib_data(fibptr);
741
742 memset(info,0,sizeof(*info));
743
744 rcode = aac_fib_send(RequestSupplementAdapterInfo,
745 fibptr,
746 sizeof(*info),
747 FsaNormal,
748 1, 1,
749 NULL,
750 NULL);
751
752 if (rcode >= 0)
753 memcpy(&dev->supplement_adapter_info, info, sizeof(*info));
754 }
755
756
757 /*
758 * GetBusInfo
759 */
760
761 aac_fib_init(fibptr);
762
763 bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
764
765 memset(bus_info, 0, sizeof(*bus_info));
766
767 command = (struct aac_bus_info *)bus_info;
768
769 command->Command = cpu_to_le32(VM_Ioctl);
770 command->ObjType = cpu_to_le32(FT_DRIVE);
771 command->MethodId = cpu_to_le32(1);
772 command->CtlCmd = cpu_to_le32(GetBusInfo);
773
774 rcode = aac_fib_send(ContainerCommand,
775 fibptr,
776 sizeof (*bus_info),
777 FsaNormal,
778 1, 1,
779 NULL, NULL);
780
781 if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
782 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
783 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
784 }
785
786 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
787 printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
788 dev->name,
789 dev->id,
790 tmp>>24,
791 (tmp>>16)&0xff,
792 tmp&0xff,
793 le32_to_cpu(dev->adapter_info.kernelbuild),
794 (int)sizeof(dev->supplement_adapter_info.BuildDate),
795 dev->supplement_adapter_info.BuildDate);
796 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
797 printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
798 dev->name, dev->id,
799 tmp>>24,(tmp>>16)&0xff,tmp&0xff,
800 le32_to_cpu(dev->adapter_info.monitorbuild));
801 tmp = le32_to_cpu(dev->adapter_info.biosrev);
802 printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
803 dev->name, dev->id,
804 tmp>>24,(tmp>>16)&0xff,tmp&0xff,
805 le32_to_cpu(dev->adapter_info.biosbuild));
806 if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
807 printk(KERN_INFO "%s%d: serial %x\n",
808 dev->name, dev->id,
809 le32_to_cpu(dev->adapter_info.serial[0]));
810
811 dev->nondasd_support = 0;
812 dev->raid_scsi_mode = 0;
813 if(dev->adapter_info.options & AAC_OPT_NONDASD){
814 dev->nondasd_support = 1;
815 }
816
817 /*
818 * If the firmware supports ROMB RAID/SCSI mode and we are currently
819 * in RAID/SCSI mode, set the flag. For now if in this mode we will
820 * force nondasd support on. If we decide to allow the non-dasd flag
821 * additional changes changes will have to be made to support
822 * RAID/SCSI. the function aac_scsi_cmd in this module will have to be
823 * changed to support the new dev->raid_scsi_mode flag instead of
824 * leaching off of the dev->nondasd_support flag. Also in linit.c the
825 * function aac_detect will have to be modified where it sets up the
826 * max number of channels based on the aac->nondasd_support flag only.
827 */
828 if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
829 (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
830 dev->nondasd_support = 1;
831 dev->raid_scsi_mode = 1;
832 }
833 if (dev->raid_scsi_mode != 0)
834 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
835 dev->name, dev->id);
836
837 if(nondasd != -1) {
838 dev->nondasd_support = (nondasd!=0);
839 }
840 if(dev->nondasd_support != 0){
841 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
842 }
843
844 dev->dac_support = 0;
845 if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
846 printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id);
847 dev->dac_support = 1;
848 }
849
850 if(dacmode != -1) {
851 dev->dac_support = (dacmode!=0);
852 }
853 if(dev->dac_support != 0) {
854 if (!pci_set_dma_mask(dev->pdev, DMA_64BIT_MASK) &&
855 !pci_set_consistent_dma_mask(dev->pdev, DMA_64BIT_MASK)) {
856 printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
857 dev->name, dev->id);
858 } else if (!pci_set_dma_mask(dev->pdev, DMA_32BIT_MASK) &&
859 !pci_set_consistent_dma_mask(dev->pdev, DMA_32BIT_MASK)) {
860 printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
861 dev->name, dev->id);
862 dev->dac_support = 0;
863 } else {
864 printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
865 dev->name, dev->id);
866 rcode = -ENOMEM;
867 }
868 }
869 /*
870 * 57 scatter gather elements
871 */
872 if (!(dev->raw_io_interface)) {
873 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
874 sizeof(struct aac_fibhdr) -
875 sizeof(struct aac_write) + sizeof(struct sgentry)) /
876 sizeof(struct sgentry);
877 if (dev->dac_support) {
878 /*
879 * 38 scatter gather elements
880 */
881 dev->scsi_host_ptr->sg_tablesize =
882 (dev->max_fib_size -
883 sizeof(struct aac_fibhdr) -
884 sizeof(struct aac_write64) +
885 sizeof(struct sgentry64)) /
886 sizeof(struct sgentry64);
887 }
888 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
889 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
890 /*
891 * Worst case size that could cause sg overflow when
892 * we break up SG elements that are larger than 64KB.
893 * Would be nice if we could tell the SCSI layer what
894 * the maximum SG element size can be. Worst case is
895 * (sg_tablesize-1) 4KB elements with one 64KB
896 * element.
897 * 32bit -> 468 or 238KB 64bit -> 424 or 212KB
898 */
899 dev->scsi_host_ptr->max_sectors =
900 (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
901 }
902 }
903
904 aac_fib_complete(fibptr);
905 aac_fib_free(fibptr);
906
907 return rcode;
908 }
909
910
911 static void io_callback(void *context, struct fib * fibptr)
912 {
913 struct aac_dev *dev;
914 struct aac_read_reply *readreply;
915 struct scsi_cmnd *scsicmd;
916 u32 cid;
917
918 scsicmd = (struct scsi_cmnd *) context;
919 scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
920
921 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
922 cid = scmd_id(scsicmd);
923
924 if (nblank(dprintk(x))) {
925 u64 lba;
926 switch (scsicmd->cmnd[0]) {
927 case WRITE_6:
928 case READ_6:
929 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
930 (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
931 break;
932 case WRITE_16:
933 case READ_16:
934 lba = ((u64)scsicmd->cmnd[2] << 56) |
935 ((u64)scsicmd->cmnd[3] << 48) |
936 ((u64)scsicmd->cmnd[4] << 40) |
937 ((u64)scsicmd->cmnd[5] << 32) |
938 ((u64)scsicmd->cmnd[6] << 24) |
939 (scsicmd->cmnd[7] << 16) |
940 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
941 break;
942 case WRITE_12:
943 case READ_12:
944 lba = ((u64)scsicmd->cmnd[2] << 24) |
945 (scsicmd->cmnd[3] << 16) |
946 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
947 break;
948 default:
949 lba = ((u64)scsicmd->cmnd[2] << 24) |
950 (scsicmd->cmnd[3] << 16) |
951 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
952 break;
953 }
954 printk(KERN_DEBUG
955 "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
956 smp_processor_id(), (unsigned long long)lba, jiffies);
957 }
958
959 if (fibptr == NULL)
960 BUG();
961
962 if(scsicmd->use_sg)
963 pci_unmap_sg(dev->pdev,
964 (struct scatterlist *)scsicmd->request_buffer,
965 scsicmd->use_sg,
966 scsicmd->sc_data_direction);
967 else if(scsicmd->request_bufflen)
968 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle,
969 scsicmd->request_bufflen,
970 scsicmd->sc_data_direction);
971 readreply = (struct aac_read_reply *)fib_data(fibptr);
972 if (le32_to_cpu(readreply->status) == ST_OK)
973 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
974 else {
975 #ifdef AAC_DETAILED_STATUS_INFO
976 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
977 le32_to_cpu(readreply->status));
978 #endif
979 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
980 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
981 HARDWARE_ERROR,
982 SENCODE_INTERNAL_TARGET_FAILURE,
983 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
984 0, 0);
985 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
986 (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
987 ? sizeof(scsicmd->sense_buffer)
988 : sizeof(dev->fsa_dev[cid].sense_data));
989 }
990 aac_fib_complete(fibptr);
991 aac_fib_free(fibptr);
992
993 scsicmd->scsi_done(scsicmd);
994 }
995
996 static int aac_read(struct scsi_cmnd * scsicmd, int cid)
997 {
998 u64 lba;
999 u32 count;
1000 int status;
1001
1002 u16 fibsize;
1003 struct aac_dev *dev;
1004 struct fib * cmd_fibcontext;
1005
1006 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1007 /*
1008 * Get block address and transfer length
1009 */
1010 switch (scsicmd->cmnd[0]) {
1011 case READ_6:
1012 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", cid));
1013
1014 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1015 (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1016 count = scsicmd->cmnd[4];
1017
1018 if (count == 0)
1019 count = 256;
1020 break;
1021 case READ_16:
1022 dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", cid));
1023
1024 lba = ((u64)scsicmd->cmnd[2] << 56) |
1025 ((u64)scsicmd->cmnd[3] << 48) |
1026 ((u64)scsicmd->cmnd[4] << 40) |
1027 ((u64)scsicmd->cmnd[5] << 32) |
1028 ((u64)scsicmd->cmnd[6] << 24) |
1029 (scsicmd->cmnd[7] << 16) |
1030 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1031 count = (scsicmd->cmnd[10] << 24) |
1032 (scsicmd->cmnd[11] << 16) |
1033 (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1034 break;
1035 case READ_12:
1036 dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", cid));
1037
1038 lba = ((u64)scsicmd->cmnd[2] << 24) |
1039 (scsicmd->cmnd[3] << 16) |
1040 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1041 count = (scsicmd->cmnd[6] << 24) |
1042 (scsicmd->cmnd[7] << 16) |
1043 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1044 break;
1045 default:
1046 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", cid));
1047
1048 lba = ((u64)scsicmd->cmnd[2] << 24) |
1049 (scsicmd->cmnd[3] << 16) |
1050 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1051 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1052 break;
1053 }
1054 dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
1055 smp_processor_id(), (unsigned long long)lba, jiffies));
1056 if ((!(dev->raw_io_interface) || !(dev->raw_io_64)) &&
1057 (lba & 0xffffffff00000000LL)) {
1058 dprintk((KERN_DEBUG "aac_read: Illegal lba\n"));
1059 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1060 SAM_STAT_CHECK_CONDITION;
1061 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1062 HARDWARE_ERROR,
1063 SENCODE_INTERNAL_TARGET_FAILURE,
1064 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1065 0, 0);
1066 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1067 (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1068 ? sizeof(scsicmd->sense_buffer)
1069 : sizeof(dev->fsa_dev[cid].sense_data));
1070 scsicmd->scsi_done(scsicmd);
1071 return 0;
1072 }
1073 /*
1074 * Alocate and initialize a Fib
1075 */
1076 if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1077 return -1;
1078 }
1079
1080 aac_fib_init(cmd_fibcontext);
1081
1082 if (dev->raw_io_interface) {
1083 struct aac_raw_io *readcmd;
1084 readcmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
1085 readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1086 readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1087 readcmd->count = cpu_to_le32(count<<9);
1088 readcmd->cid = cpu_to_le16(cid);
1089 readcmd->flags = cpu_to_le16(1);
1090 readcmd->bpTotal = 0;
1091 readcmd->bpComplete = 0;
1092
1093 aac_build_sgraw(scsicmd, &readcmd->sg);
1094 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
1095 if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))
1096 BUG();
1097 /*
1098 * Now send the Fib to the adapter
1099 */
1100 status = aac_fib_send(ContainerRawIo,
1101 cmd_fibcontext,
1102 fibsize,
1103 FsaNormal,
1104 0, 1,
1105 (fib_callback) io_callback,
1106 (void *) scsicmd);
1107 } else if (dev->dac_support == 1) {
1108 struct aac_read64 *readcmd;
1109 readcmd = (struct aac_read64 *) fib_data(cmd_fibcontext);
1110 readcmd->command = cpu_to_le32(VM_CtHostRead64);
1111 readcmd->cid = cpu_to_le16(cid);
1112 readcmd->sector_count = cpu_to_le16(count);
1113 readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1114 readcmd->pad = 0;
1115 readcmd->flags = 0;
1116
1117 aac_build_sg64(scsicmd, &readcmd->sg);
1118 fibsize = sizeof(struct aac_read64) +
1119 ((le32_to_cpu(readcmd->sg.count) - 1) *
1120 sizeof (struct sgentry64));
1121 BUG_ON (fibsize > (dev->max_fib_size -
1122 sizeof(struct aac_fibhdr)));
1123 /*
1124 * Now send the Fib to the adapter
1125 */
1126 status = aac_fib_send(ContainerCommand64,
1127 cmd_fibcontext,
1128 fibsize,
1129 FsaNormal,
1130 0, 1,
1131 (fib_callback) io_callback,
1132 (void *) scsicmd);
1133 } else {
1134 struct aac_read *readcmd;
1135 readcmd = (struct aac_read *) fib_data(cmd_fibcontext);
1136 readcmd->command = cpu_to_le32(VM_CtBlockRead);
1137 readcmd->cid = cpu_to_le32(cid);
1138 readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1139 readcmd->count = cpu_to_le32(count * 512);
1140
1141 aac_build_sg(scsicmd, &readcmd->sg);
1142 fibsize = sizeof(struct aac_read) +
1143 ((le32_to_cpu(readcmd->sg.count) - 1) *
1144 sizeof (struct sgentry));
1145 BUG_ON (fibsize > (dev->max_fib_size -
1146 sizeof(struct aac_fibhdr)));
1147 /*
1148 * Now send the Fib to the adapter
1149 */
1150 status = aac_fib_send(ContainerCommand,
1151 cmd_fibcontext,
1152 fibsize,
1153 FsaNormal,
1154 0, 1,
1155 (fib_callback) io_callback,
1156 (void *) scsicmd);
1157 }
1158
1159
1160
1161 /*
1162 * Check that the command queued to the controller
1163 */
1164 if (status == -EINPROGRESS) {
1165 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1166 return 0;
1167 }
1168
1169 printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
1170 /*
1171 * For some reason, the Fib didn't queue, return QUEUE_FULL
1172 */
1173 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1174 scsicmd->scsi_done(scsicmd);
1175 aac_fib_complete(cmd_fibcontext);
1176 aac_fib_free(cmd_fibcontext);
1177 return 0;
1178 }
1179
1180 static int aac_write(struct scsi_cmnd * scsicmd, int cid)
1181 {
1182 u64 lba;
1183 u32 count;
1184 int status;
1185 u16 fibsize;
1186 struct aac_dev *dev;
1187 struct fib * cmd_fibcontext;
1188
1189 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1190 /*
1191 * Get block address and transfer length
1192 */
1193 if (scsicmd->cmnd[0] == WRITE_6) /* 6 byte command */
1194 {
1195 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1196 count = scsicmd->cmnd[4];
1197 if (count == 0)
1198 count = 256;
1199 } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
1200 dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", cid));
1201
1202 lba = ((u64)scsicmd->cmnd[2] << 56) |
1203 ((u64)scsicmd->cmnd[3] << 48) |
1204 ((u64)scsicmd->cmnd[4] << 40) |
1205 ((u64)scsicmd->cmnd[5] << 32) |
1206 ((u64)scsicmd->cmnd[6] << 24) |
1207 (scsicmd->cmnd[7] << 16) |
1208 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1209 count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
1210 (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1211 } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
1212 dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", cid));
1213
1214 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
1215 | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1216 count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
1217 | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1218 } else {
1219 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", cid));
1220 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1221 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1222 }
1223 dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
1224 smp_processor_id(), (unsigned long long)lba, jiffies));
1225 if ((!(dev->raw_io_interface) || !(dev->raw_io_64))
1226 && (lba & 0xffffffff00000000LL)) {
1227 dprintk((KERN_DEBUG "aac_write: Illegal lba\n"));
1228 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1229 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1230 HARDWARE_ERROR,
1231 SENCODE_INTERNAL_TARGET_FAILURE,
1232 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1233 0, 0);
1234 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1235 (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1236 ? sizeof(scsicmd->sense_buffer)
1237 : sizeof(dev->fsa_dev[cid].sense_data));
1238 scsicmd->scsi_done(scsicmd);
1239 return 0;
1240 }
1241 /*
1242 * Allocate and initialize a Fib then setup a BlockWrite command
1243 */
1244 if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1245 scsicmd->result = DID_ERROR << 16;
1246 scsicmd->scsi_done(scsicmd);
1247 return 0;
1248 }
1249 aac_fib_init(cmd_fibcontext);
1250
1251 if (dev->raw_io_interface) {
1252 struct aac_raw_io *writecmd;
1253 writecmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
1254 writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1255 writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1256 writecmd->count = cpu_to_le32(count<<9);
1257 writecmd->cid = cpu_to_le16(cid);
1258 writecmd->flags = 0;
1259 writecmd->bpTotal = 0;
1260 writecmd->bpComplete = 0;
1261
1262 aac_build_sgraw(scsicmd, &writecmd->sg);
1263 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1264 if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))
1265 BUG();
1266 /*
1267 * Now send the Fib to the adapter
1268 */
1269 status = aac_fib_send(ContainerRawIo,
1270 cmd_fibcontext,
1271 fibsize,
1272 FsaNormal,
1273 0, 1,
1274 (fib_callback) io_callback,
1275 (void *) scsicmd);
1276 } else if (dev->dac_support == 1) {
1277 struct aac_write64 *writecmd;
1278 writecmd = (struct aac_write64 *) fib_data(cmd_fibcontext);
1279 writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1280 writecmd->cid = cpu_to_le16(cid);
1281 writecmd->sector_count = cpu_to_le16(count);
1282 writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1283 writecmd->pad = 0;
1284 writecmd->flags = 0;
1285
1286 aac_build_sg64(scsicmd, &writecmd->sg);
1287 fibsize = sizeof(struct aac_write64) +
1288 ((le32_to_cpu(writecmd->sg.count) - 1) *
1289 sizeof (struct sgentry64));
1290 BUG_ON (fibsize > (dev->max_fib_size -
1291 sizeof(struct aac_fibhdr)));
1292 /*
1293 * Now send the Fib to the adapter
1294 */
1295 status = aac_fib_send(ContainerCommand64,
1296 cmd_fibcontext,
1297 fibsize,
1298 FsaNormal,
1299 0, 1,
1300 (fib_callback) io_callback,
1301 (void *) scsicmd);
1302 } else {
1303 struct aac_write *writecmd;
1304 writecmd = (struct aac_write *) fib_data(cmd_fibcontext);
1305 writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1306 writecmd->cid = cpu_to_le32(cid);
1307 writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1308 writecmd->count = cpu_to_le32(count * 512);
1309 writecmd->sg.count = cpu_to_le32(1);
1310 /* ->stable is not used - it did mean which type of write */
1311
1312 aac_build_sg(scsicmd, &writecmd->sg);
1313 fibsize = sizeof(struct aac_write) +
1314 ((le32_to_cpu(writecmd->sg.count) - 1) *
1315 sizeof (struct sgentry));
1316 BUG_ON (fibsize > (dev->max_fib_size -
1317 sizeof(struct aac_fibhdr)));
1318 /*
1319 * Now send the Fib to the adapter
1320 */
1321 status = aac_fib_send(ContainerCommand,
1322 cmd_fibcontext,
1323 fibsize,
1324 FsaNormal,
1325 0, 1,
1326 (fib_callback) io_callback,
1327 (void *) scsicmd);
1328 }
1329
1330 /*
1331 * Check that the command queued to the controller
1332 */
1333 if (status == -EINPROGRESS) {
1334 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1335 return 0;
1336 }
1337
1338 printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
1339 /*
1340 * For some reason, the Fib didn't queue, return QUEUE_FULL
1341 */
1342 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1343 scsicmd->scsi_done(scsicmd);
1344
1345 aac_fib_complete(cmd_fibcontext);
1346 aac_fib_free(cmd_fibcontext);
1347 return 0;
1348 }
1349
1350 static void synchronize_callback(void *context, struct fib *fibptr)
1351 {
1352 struct aac_synchronize_reply *synchronizereply;
1353 struct scsi_cmnd *cmd;
1354
1355 cmd = context;
1356 cmd->SCp.phase = AAC_OWNER_MIDLEVEL;
1357
1358 dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1359 smp_processor_id(), jiffies));
1360 BUG_ON(fibptr == NULL);
1361
1362
1363 synchronizereply = fib_data(fibptr);
1364 if (le32_to_cpu(synchronizereply->status) == CT_OK)
1365 cmd->result = DID_OK << 16 |
1366 COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1367 else {
1368 struct scsi_device *sdev = cmd->device;
1369 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
1370 u32 cid = sdev_id(sdev);
1371 printk(KERN_WARNING
1372 "synchronize_callback: synchronize failed, status = %d\n",
1373 le32_to_cpu(synchronizereply->status));
1374 cmd->result = DID_OK << 16 |
1375 COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1376 set_sense((u8 *)&dev->fsa_dev[cid].sense_data,
1377 HARDWARE_ERROR,
1378 SENCODE_INTERNAL_TARGET_FAILURE,
1379 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1380 0, 0);
1381 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1382 min(sizeof(dev->fsa_dev[cid].sense_data),
1383 sizeof(cmd->sense_buffer)));
1384 }
1385
1386 aac_fib_complete(fibptr);
1387 aac_fib_free(fibptr);
1388 cmd->scsi_done(cmd);
1389 }
1390
1391 static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
1392 {
1393 int status;
1394 struct fib *cmd_fibcontext;
1395 struct aac_synchronize *synchronizecmd;
1396 struct scsi_cmnd *cmd;
1397 struct scsi_device *sdev = scsicmd->device;
1398 int active = 0;
1399 unsigned long flags;
1400
1401 /*
1402 * Wait for all outstanding queued commands to complete to this
1403 * specific target (block).
1404 */
1405 spin_lock_irqsave(&sdev->list_lock, flags);
1406 list_for_each_entry(cmd, &sdev->cmd_list, list)
1407 if (cmd != scsicmd && cmd->SCp.phase == AAC_OWNER_FIRMWARE) {
1408 ++active;
1409 break;
1410 }
1411
1412 spin_unlock_irqrestore(&sdev->list_lock, flags);
1413
1414 /*
1415 * Yield the processor (requeue for later)
1416 */
1417 if (active)
1418 return SCSI_MLQUEUE_DEVICE_BUSY;
1419
1420 /*
1421 * Allocate and initialize a Fib
1422 */
1423 if (!(cmd_fibcontext =
1424 aac_fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata)))
1425 return SCSI_MLQUEUE_HOST_BUSY;
1426
1427 aac_fib_init(cmd_fibcontext);
1428
1429 synchronizecmd = fib_data(cmd_fibcontext);
1430 synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1431 synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1432 synchronizecmd->cid = cpu_to_le32(cid);
1433 synchronizecmd->count =
1434 cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1435
1436 /*
1437 * Now send the Fib to the adapter
1438 */
1439 status = aac_fib_send(ContainerCommand,
1440 cmd_fibcontext,
1441 sizeof(struct aac_synchronize),
1442 FsaNormal,
1443 0, 1,
1444 (fib_callback)synchronize_callback,
1445 (void *)scsicmd);
1446
1447 /*
1448 * Check that the command queued to the controller
1449 */
1450 if (status == -EINPROGRESS) {
1451 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1452 return 0;
1453 }
1454
1455 printk(KERN_WARNING
1456 "aac_synchronize: aac_fib_send failed with status: %d.\n", status);
1457 aac_fib_complete(cmd_fibcontext);
1458 aac_fib_free(cmd_fibcontext);
1459 return SCSI_MLQUEUE_HOST_BUSY;
1460 }
1461
1462 /**
1463 * aac_scsi_cmd() - Process SCSI command
1464 * @scsicmd: SCSI command block
1465 *
1466 * Emulate a SCSI command and queue the required request for the
1467 * aacraid firmware.
1468 */
1469
1470 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1471 {
1472 u32 cid = 0;
1473 struct Scsi_Host *host = scsicmd->device->host;
1474 struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1475 struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1476
1477 /*
1478 * If the bus, id or lun is out of range, return fail
1479 * Test does not apply to ID 16, the pseudo id for the controller
1480 * itself.
1481 */
1482 if (scmd_id(scsicmd) != host->this_id) {
1483 if ((scmd_channel(scsicmd) == CONTAINER_CHANNEL)) {
1484 if((scmd_id(scsicmd) >= dev->maximum_num_containers) ||
1485 (scsicmd->device->lun != 0)) {
1486 scsicmd->result = DID_NO_CONNECT << 16;
1487 scsicmd->scsi_done(scsicmd);
1488 return 0;
1489 }
1490 cid = scmd_id(scsicmd);
1491
1492 /*
1493 * If the target container doesn't exist, it may have
1494 * been newly created
1495 */
1496 if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1497 switch (scsicmd->cmnd[0]) {
1498 case SERVICE_ACTION_IN:
1499 if (!(dev->raw_io_interface) ||
1500 !(dev->raw_io_64) ||
1501 ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
1502 break;
1503 case INQUIRY:
1504 case READ_CAPACITY:
1505 case TEST_UNIT_READY:
1506 spin_unlock_irq(host->host_lock);
1507 aac_probe_container(dev, cid);
1508 if ((fsa_dev_ptr[cid].valid & 1) == 0)
1509 fsa_dev_ptr[cid].valid = 0;
1510 spin_lock_irq(host->host_lock);
1511 if (fsa_dev_ptr[cid].valid == 0) {
1512 scsicmd->result = DID_NO_CONNECT << 16;
1513 scsicmd->scsi_done(scsicmd);
1514 return 0;
1515 }
1516 default:
1517 break;
1518 }
1519 }
1520 /*
1521 * If the target container still doesn't exist,
1522 * return failure
1523 */
1524 if (fsa_dev_ptr[cid].valid == 0) {
1525 scsicmd->result = DID_BAD_TARGET << 16;
1526 scsicmd->scsi_done(scsicmd);
1527 return 0;
1528 }
1529 } else { /* check for physical non-dasd devices */
1530 if(dev->nondasd_support == 1){
1531 return aac_send_srb_fib(scsicmd);
1532 } else {
1533 scsicmd->result = DID_NO_CONNECT << 16;
1534 scsicmd->scsi_done(scsicmd);
1535 return 0;
1536 }
1537 }
1538 }
1539 /*
1540 * else Command for the controller itself
1541 */
1542 else if ((scsicmd->cmnd[0] != INQUIRY) && /* only INQUIRY & TUR cmnd supported for controller */
1543 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1544 {
1545 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1546 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1547 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1548 ILLEGAL_REQUEST,
1549 SENCODE_INVALID_COMMAND,
1550 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1551 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1552 (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1553 ? sizeof(scsicmd->sense_buffer)
1554 : sizeof(dev->fsa_dev[cid].sense_data));
1555 scsicmd->scsi_done(scsicmd);
1556 return 0;
1557 }
1558
1559
1560 /* Handle commands here that don't really require going out to the adapter */
1561 switch (scsicmd->cmnd[0]) {
1562 case INQUIRY:
1563 {
1564 struct inquiry_data inq_data;
1565
1566 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scmd_id(scsicmd)));
1567 memset(&inq_data, 0, sizeof (struct inquiry_data));
1568
1569 inq_data.inqd_ver = 2; /* claim compliance to SCSI-2 */
1570 inq_data.inqd_rdf = 2; /* A response data format value of two indicates that the data shall be in the format specified in SCSI-2 */
1571 inq_data.inqd_len = 31;
1572 /*Format for "pad2" is RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */
1573 inq_data.inqd_pad2= 0x32 ; /*WBus16|Sync|CmdQue */
1574 /*
1575 * Set the Vendor, Product, and Revision Level
1576 * see: <vendor>.c i.e. aac.c
1577 */
1578 if (scmd_id(scsicmd) == host->this_id) {
1579 setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
1580 inq_data.inqd_pdt = INQD_PDT_PROC; /* Processor device */
1581 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
1582 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1583 scsicmd->scsi_done(scsicmd);
1584 return 0;
1585 }
1586 setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
1587 inq_data.inqd_pdt = INQD_PDT_DA; /* Direct/random access device */
1588 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
1589 return aac_get_container_name(scsicmd, cid);
1590 }
1591 case SERVICE_ACTION_IN:
1592 if (!(dev->raw_io_interface) ||
1593 !(dev->raw_io_64) ||
1594 ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
1595 break;
1596 {
1597 u64 capacity;
1598 char cp[13];
1599
1600 dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
1601 capacity = fsa_dev_ptr[cid].size - 1;
1602 cp[0] = (capacity >> 56) & 0xff;
1603 cp[1] = (capacity >> 48) & 0xff;
1604 cp[2] = (capacity >> 40) & 0xff;
1605 cp[3] = (capacity >> 32) & 0xff;
1606 cp[4] = (capacity >> 24) & 0xff;
1607 cp[5] = (capacity >> 16) & 0xff;
1608 cp[6] = (capacity >> 8) & 0xff;
1609 cp[7] = (capacity >> 0) & 0xff;
1610 cp[8] = 0;
1611 cp[9] = 0;
1612 cp[10] = 2;
1613 cp[11] = 0;
1614 cp[12] = 0;
1615 aac_internal_transfer(scsicmd, cp, 0,
1616 min_t(size_t, scsicmd->cmnd[13], sizeof(cp)));
1617 if (sizeof(cp) < scsicmd->cmnd[13]) {
1618 unsigned int len, offset = sizeof(cp);
1619
1620 memset(cp, 0, offset);
1621 do {
1622 len = min_t(size_t, scsicmd->cmnd[13] - offset,
1623 sizeof(cp));
1624 aac_internal_transfer(scsicmd, cp, offset, len);
1625 } while ((offset += len) < scsicmd->cmnd[13]);
1626 }
1627
1628 /* Do not cache partition table for arrays */
1629 scsicmd->device->removable = 1;
1630
1631 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1632 scsicmd->scsi_done(scsicmd);
1633
1634 return 0;
1635 }
1636
1637 case READ_CAPACITY:
1638 {
1639 u32 capacity;
1640 char cp[8];
1641
1642 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
1643 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
1644 capacity = fsa_dev_ptr[cid].size - 1;
1645 else
1646 capacity = (u32)-1;
1647
1648 cp[0] = (capacity >> 24) & 0xff;
1649 cp[1] = (capacity >> 16) & 0xff;
1650 cp[2] = (capacity >> 8) & 0xff;
1651 cp[3] = (capacity >> 0) & 0xff;
1652 cp[4] = 0;
1653 cp[5] = 0;
1654 cp[6] = 2;
1655 cp[7] = 0;
1656 aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
1657 /* Do not cache partition table for arrays */
1658 scsicmd->device->removable = 1;
1659
1660 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1661 scsicmd->scsi_done(scsicmd);
1662
1663 return 0;
1664 }
1665
1666 case MODE_SENSE:
1667 {
1668 char mode_buf[4];
1669
1670 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
1671 mode_buf[0] = 3; /* Mode data length */
1672 mode_buf[1] = 0; /* Medium type - default */
1673 mode_buf[2] = 0; /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1674 mode_buf[3] = 0; /* Block descriptor length */
1675
1676 aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
1677 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1678 scsicmd->scsi_done(scsicmd);
1679
1680 return 0;
1681 }
1682 case MODE_SENSE_10:
1683 {
1684 char mode_buf[8];
1685
1686 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
1687 mode_buf[0] = 0; /* Mode data length (MSB) */
1688 mode_buf[1] = 6; /* Mode data length (LSB) */
1689 mode_buf[2] = 0; /* Medium type - default */
1690 mode_buf[3] = 0; /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1691 mode_buf[4] = 0; /* reserved */
1692 mode_buf[5] = 0; /* reserved */
1693 mode_buf[6] = 0; /* Block descriptor length (MSB) */
1694 mode_buf[7] = 0; /* Block descriptor length (LSB) */
1695 aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
1696
1697 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1698 scsicmd->scsi_done(scsicmd);
1699
1700 return 0;
1701 }
1702 case REQUEST_SENSE:
1703 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
1704 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
1705 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
1706 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1707 scsicmd->scsi_done(scsicmd);
1708 return 0;
1709
1710 case ALLOW_MEDIUM_REMOVAL:
1711 dprintk((KERN_DEBUG "LOCK command.\n"));
1712 if (scsicmd->cmnd[4])
1713 fsa_dev_ptr[cid].locked = 1;
1714 else
1715 fsa_dev_ptr[cid].locked = 0;
1716
1717 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1718 scsicmd->scsi_done(scsicmd);
1719 return 0;
1720 /*
1721 * These commands are all No-Ops
1722 */
1723 case TEST_UNIT_READY:
1724 case RESERVE:
1725 case RELEASE:
1726 case REZERO_UNIT:
1727 case REASSIGN_BLOCKS:
1728 case SEEK_10:
1729 case START_STOP:
1730 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1731 scsicmd->scsi_done(scsicmd);
1732 return 0;
1733 }
1734
1735 switch (scsicmd->cmnd[0])
1736 {
1737 case READ_6:
1738 case READ_10:
1739 case READ_12:
1740 case READ_16:
1741 /*
1742 * Hack to keep track of ordinal number of the device that
1743 * corresponds to a container. Needed to convert
1744 * containers to /dev/sd device names
1745 */
1746
1747 if (scsicmd->request->rq_disk)
1748 strlcpy(fsa_dev_ptr[cid].devname,
1749 scsicmd->request->rq_disk->disk_name,
1750 min(sizeof(fsa_dev_ptr[cid].devname),
1751 sizeof(scsicmd->request->rq_disk->disk_name) + 1));
1752
1753 return aac_read(scsicmd, cid);
1754
1755 case WRITE_6:
1756 case WRITE_10:
1757 case WRITE_12:
1758 case WRITE_16:
1759 return aac_write(scsicmd, cid);
1760
1761 case SYNCHRONIZE_CACHE:
1762 /* Issue FIB to tell Firmware to flush it's cache */
1763 return aac_synchronize(scsicmd, cid);
1764
1765 default:
1766 /*
1767 * Unhandled commands
1768 */
1769 dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
1770 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1771 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1772 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
1773 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1774 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1775 (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1776 ? sizeof(scsicmd->sense_buffer)
1777 : sizeof(dev->fsa_dev[cid].sense_data));
1778 scsicmd->scsi_done(scsicmd);
1779 return 0;
1780 }
1781 }
1782
1783 static int query_disk(struct aac_dev *dev, void __user *arg)
1784 {
1785 struct aac_query_disk qd;
1786 struct fsa_dev_info *fsa_dev_ptr;
1787
1788 fsa_dev_ptr = dev->fsa_dev;
1789 if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
1790 return -EFAULT;
1791 if (qd.cnum == -1)
1792 qd.cnum = qd.id;
1793 else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
1794 {
1795 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
1796 return -EINVAL;
1797 qd.instance = dev->scsi_host_ptr->host_no;
1798 qd.bus = 0;
1799 qd.id = CONTAINER_TO_ID(qd.cnum);
1800 qd.lun = CONTAINER_TO_LUN(qd.cnum);
1801 }
1802 else return -EINVAL;
1803
1804 qd.valid = fsa_dev_ptr[qd.cnum].valid;
1805 qd.locked = fsa_dev_ptr[qd.cnum].locked;
1806 qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
1807
1808 if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
1809 qd.unmapped = 1;
1810 else
1811 qd.unmapped = 0;
1812
1813 strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
1814 min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
1815
1816 if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
1817 return -EFAULT;
1818 return 0;
1819 }
1820
1821 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
1822 {
1823 struct aac_delete_disk dd;
1824 struct fsa_dev_info *fsa_dev_ptr;
1825
1826 fsa_dev_ptr = dev->fsa_dev;
1827
1828 if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1829 return -EFAULT;
1830
1831 if (dd.cnum >= dev->maximum_num_containers)
1832 return -EINVAL;
1833 /*
1834 * Mark this container as being deleted.
1835 */
1836 fsa_dev_ptr[dd.cnum].deleted = 1;
1837 /*
1838 * Mark the container as no longer valid
1839 */
1840 fsa_dev_ptr[dd.cnum].valid = 0;
1841 return 0;
1842 }
1843
1844 static int delete_disk(struct aac_dev *dev, void __user *arg)
1845 {
1846 struct aac_delete_disk dd;
1847 struct fsa_dev_info *fsa_dev_ptr;
1848
1849 fsa_dev_ptr = dev->fsa_dev;
1850
1851 if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1852 return -EFAULT;
1853
1854 if (dd.cnum >= dev->maximum_num_containers)
1855 return -EINVAL;
1856 /*
1857 * If the container is locked, it can not be deleted by the API.
1858 */
1859 if (fsa_dev_ptr[dd.cnum].locked)
1860 return -EBUSY;
1861 else {
1862 /*
1863 * Mark the container as no longer being valid.
1864 */
1865 fsa_dev_ptr[dd.cnum].valid = 0;
1866 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
1867 return 0;
1868 }
1869 }
1870
1871 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
1872 {
1873 switch (cmd) {
1874 case FSACTL_QUERY_DISK:
1875 return query_disk(dev, arg);
1876 case FSACTL_DELETE_DISK:
1877 return delete_disk(dev, arg);
1878 case FSACTL_FORCE_DELETE_DISK:
1879 return force_delete_disk(dev, arg);
1880 case FSACTL_GET_CONTAINERS:
1881 return aac_get_containers(dev);
1882 default:
1883 return -ENOTTY;
1884 }
1885 }
1886
1887 /**
1888 *
1889 * aac_srb_callback
1890 * @context: the context set in the fib - here it is scsi cmd
1891 * @fibptr: pointer to the fib
1892 *
1893 * Handles the completion of a scsi command to a non dasd device
1894 *
1895 */
1896
1897 static void aac_srb_callback(void *context, struct fib * fibptr)
1898 {
1899 struct aac_dev *dev;
1900 struct aac_srb_reply *srbreply;
1901 struct scsi_cmnd *scsicmd;
1902
1903 scsicmd = (struct scsi_cmnd *) context;
1904 scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
1905 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1906
1907 if (fibptr == NULL)
1908 BUG();
1909
1910 srbreply = (struct aac_srb_reply *) fib_data(fibptr);
1911
1912 scsicmd->sense_buffer[0] = '\0'; /* Initialize sense valid flag to false */
1913 /*
1914 * Calculate resid for sg
1915 */
1916
1917 scsicmd->resid = scsicmd->request_bufflen -
1918 le32_to_cpu(srbreply->data_xfer_length);
1919
1920 if(scsicmd->use_sg)
1921 pci_unmap_sg(dev->pdev,
1922 (struct scatterlist *)scsicmd->request_buffer,
1923 scsicmd->use_sg,
1924 scsicmd->sc_data_direction);
1925 else if(scsicmd->request_bufflen)
1926 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, scsicmd->request_bufflen,
1927 scsicmd->sc_data_direction);
1928
1929 /*
1930 * First check the fib status
1931 */
1932
1933 if (le32_to_cpu(srbreply->status) != ST_OK){
1934 int len;
1935 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
1936 len = (le32_to_cpu(srbreply->sense_data_size) >
1937 sizeof(scsicmd->sense_buffer)) ?
1938 sizeof(scsicmd->sense_buffer) :
1939 le32_to_cpu(srbreply->sense_data_size);
1940 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1941 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1942 }
1943
1944 /*
1945 * Next check the srb status
1946 */
1947 switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
1948 case SRB_STATUS_ERROR_RECOVERY:
1949 case SRB_STATUS_PENDING:
1950 case SRB_STATUS_SUCCESS:
1951 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1952 break;
1953 case SRB_STATUS_DATA_OVERRUN:
1954 switch(scsicmd->cmnd[0]){
1955 case READ_6:
1956 case WRITE_6:
1957 case READ_10:
1958 case WRITE_10:
1959 case READ_12:
1960 case WRITE_12:
1961 case READ_16:
1962 case WRITE_16:
1963 if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
1964 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
1965 } else {
1966 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
1967 }
1968 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1969 break;
1970 case INQUIRY: {
1971 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1972 break;
1973 }
1974 default:
1975 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1976 break;
1977 }
1978 break;
1979 case SRB_STATUS_ABORTED:
1980 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
1981 break;
1982 case SRB_STATUS_ABORT_FAILED:
1983 // Not sure about this one - but assuming the hba was trying to abort for some reason
1984 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
1985 break;
1986 case SRB_STATUS_PARITY_ERROR:
1987 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
1988 break;
1989 case SRB_STATUS_NO_DEVICE:
1990 case SRB_STATUS_INVALID_PATH_ID:
1991 case SRB_STATUS_INVALID_TARGET_ID:
1992 case SRB_STATUS_INVALID_LUN:
1993 case SRB_STATUS_SELECTION_TIMEOUT:
1994 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1995 break;
1996
1997 case SRB_STATUS_COMMAND_TIMEOUT:
1998 case SRB_STATUS_TIMEOUT:
1999 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
2000 break;
2001
2002 case SRB_STATUS_BUSY:
2003 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2004 break;
2005
2006 case SRB_STATUS_BUS_RESET:
2007 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
2008 break;
2009
2010 case SRB_STATUS_MESSAGE_REJECTED:
2011 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
2012 break;
2013 case SRB_STATUS_REQUEST_FLUSHED:
2014 case SRB_STATUS_ERROR:
2015 case SRB_STATUS_INVALID_REQUEST:
2016 case SRB_STATUS_REQUEST_SENSE_FAILED:
2017 case SRB_STATUS_NO_HBA:
2018 case SRB_STATUS_UNEXPECTED_BUS_FREE:
2019 case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
2020 case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
2021 case SRB_STATUS_DELAYED_RETRY:
2022 case SRB_STATUS_BAD_FUNCTION:
2023 case SRB_STATUS_NOT_STARTED:
2024 case SRB_STATUS_NOT_IN_USE:
2025 case SRB_STATUS_FORCE_ABORT:
2026 case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
2027 default:
2028 #ifdef AAC_DETAILED_STATUS_INFO
2029 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
2030 le32_to_cpu(srbreply->srb_status) & 0x3F,
2031 aac_get_status_string(
2032 le32_to_cpu(srbreply->srb_status) & 0x3F),
2033 scsicmd->cmnd[0],
2034 le32_to_cpu(srbreply->scsi_status));
2035 #endif
2036 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2037 break;
2038 }
2039 if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){ // Check Condition
2040 int len;
2041 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
2042 len = (le32_to_cpu(srbreply->sense_data_size) >
2043 sizeof(scsicmd->sense_buffer)) ?
2044 sizeof(scsicmd->sense_buffer) :
2045 le32_to_cpu(srbreply->sense_data_size);
2046 #ifdef AAC_DETAILED_STATUS_INFO
2047 printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
2048 le32_to_cpu(srbreply->status), len);
2049 #endif
2050 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2051
2052 }
2053 /*
2054 * OR in the scsi status (already shifted up a bit)
2055 */
2056 scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
2057
2058 aac_fib_complete(fibptr);
2059 aac_fib_free(fibptr);
2060 scsicmd->scsi_done(scsicmd);
2061 }
2062
2063 /**
2064 *
2065 * aac_send_scb_fib
2066 * @scsicmd: the scsi command block
2067 *
2068 * This routine will form a FIB and fill in the aac_srb from the
2069 * scsicmd passed in.
2070 */
2071
2072 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
2073 {
2074 struct fib* cmd_fibcontext;
2075 struct aac_dev* dev;
2076 int status;
2077 struct aac_srb *srbcmd;
2078 u16 fibsize;
2079 u32 flag;
2080 u32 timeout;
2081
2082 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2083 if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
2084 scsicmd->device->lun > 7) {
2085 scsicmd->result = DID_NO_CONNECT << 16;
2086 scsicmd->scsi_done(scsicmd);
2087 return 0;
2088 }
2089
2090 switch(scsicmd->sc_data_direction){
2091 case DMA_TO_DEVICE:
2092 flag = SRB_DataOut;
2093 break;
2094 case DMA_BIDIRECTIONAL:
2095 flag = SRB_DataIn | SRB_DataOut;
2096 break;
2097 case DMA_FROM_DEVICE:
2098 flag = SRB_DataIn;
2099 break;
2100 case DMA_NONE:
2101 default: /* shuts up some versions of gcc */
2102 flag = SRB_NoDataXfer;
2103 break;
2104 }
2105
2106
2107 /*
2108 * Allocate and initialize a Fib then setup a BlockWrite command
2109 */
2110 if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
2111 return -1;
2112 }
2113 aac_fib_init(cmd_fibcontext);
2114
2115 srbcmd = (struct aac_srb*) fib_data(cmd_fibcontext);
2116 srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
2117 srbcmd->channel = cpu_to_le32(aac_logical_to_phys(scmd_channel(scsicmd)));
2118 srbcmd->id = cpu_to_le32(scmd_id(scsicmd));
2119 srbcmd->lun = cpu_to_le32(scsicmd->device->lun);
2120 srbcmd->flags = cpu_to_le32(flag);
2121 timeout = scsicmd->timeout_per_command/HZ;
2122 if(timeout == 0){
2123 timeout = 1;
2124 }
2125 srbcmd->timeout = cpu_to_le32(timeout); // timeout in seconds
2126 srbcmd->retry_limit = 0; /* Obsolete parameter */
2127 srbcmd->cdb_size = cpu_to_le32(scsicmd->cmd_len);
2128
2129 if( dev->dac_support == 1 ) {
2130 aac_build_sg64(scsicmd, (struct sgmap64*) &srbcmd->sg);
2131 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
2132
2133 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
2134 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
2135 /*
2136 * Build Scatter/Gather list
2137 */
2138 fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
2139 ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
2140 sizeof (struct sgentry64));
2141 BUG_ON (fibsize > (dev->max_fib_size -
2142 sizeof(struct aac_fibhdr)));
2143
2144 /*
2145 * Now send the Fib to the adapter
2146 */
2147 status = aac_fib_send(ScsiPortCommand64, cmd_fibcontext,
2148 fibsize, FsaNormal, 0, 1,
2149 (fib_callback) aac_srb_callback,
2150 (void *) scsicmd);
2151 } else {
2152 aac_build_sg(scsicmd, (struct sgmap*)&srbcmd->sg);
2153 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
2154
2155 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
2156 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
2157 /*
2158 * Build Scatter/Gather list
2159 */
2160 fibsize = sizeof (struct aac_srb) +
2161 (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
2162 sizeof (struct sgentry));
2163 BUG_ON (fibsize > (dev->max_fib_size -
2164 sizeof(struct aac_fibhdr)));
2165
2166 /*
2167 * Now send the Fib to the adapter
2168 */
2169 status = aac_fib_send(ScsiPortCommand, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
2170 (fib_callback) aac_srb_callback, (void *) scsicmd);
2171 }
2172 /*
2173 * Check that the command queued to the controller
2174 */
2175 if (status == -EINPROGRESS) {
2176 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
2177 return 0;
2178 }
2179
2180 printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
2181 aac_fib_complete(cmd_fibcontext);
2182 aac_fib_free(cmd_fibcontext);
2183
2184 return -1;
2185 }
2186
2187 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
2188 {
2189 struct aac_dev *dev;
2190 unsigned long byte_count = 0;
2191
2192 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2193 // Get rid of old data
2194 psg->count = 0;
2195 psg->sg[0].addr = 0;
2196 psg->sg[0].count = 0;
2197 if (scsicmd->use_sg) {
2198 struct scatterlist *sg;
2199 int i;
2200 int sg_count;
2201 sg = (struct scatterlist *) scsicmd->request_buffer;
2202
2203 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2204 scsicmd->sc_data_direction);
2205 psg->count = cpu_to_le32(sg_count);
2206
2207 for (i = 0; i < sg_count; i++) {
2208 psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2209 psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2210 byte_count += sg_dma_len(sg);
2211 sg++;
2212 }
2213 /* hba wants the size to be exact */
2214 if(byte_count > scsicmd->request_bufflen){
2215 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2216 (byte_count - scsicmd->request_bufflen);
2217 psg->sg[i-1].count = cpu_to_le32(temp);
2218 byte_count = scsicmd->request_bufflen;
2219 }
2220 /* Check for command underflow */
2221 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2222 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2223 byte_count, scsicmd->underflow);
2224 }
2225 }
2226 else if(scsicmd->request_bufflen) {
2227 u32 addr;
2228 scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
2229 scsicmd->request_buffer,
2230 scsicmd->request_bufflen,
2231 scsicmd->sc_data_direction);
2232 addr = scsicmd->SCp.dma_handle;
2233 psg->count = cpu_to_le32(1);
2234 psg->sg[0].addr = cpu_to_le32(addr);
2235 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
2236 byte_count = scsicmd->request_bufflen;
2237 }
2238 return byte_count;
2239 }
2240
2241
2242 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2243 {
2244 struct aac_dev *dev;
2245 unsigned long byte_count = 0;
2246 u64 addr;
2247
2248 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2249 // Get rid of old data
2250 psg->count = 0;
2251 psg->sg[0].addr[0] = 0;
2252 psg->sg[0].addr[1] = 0;
2253 psg->sg[0].count = 0;
2254 if (scsicmd->use_sg) {
2255 struct scatterlist *sg;
2256 int i;
2257 int sg_count;
2258 sg = (struct scatterlist *) scsicmd->request_buffer;
2259
2260 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2261 scsicmd->sc_data_direction);
2262
2263 for (i = 0; i < sg_count; i++) {
2264 int count = sg_dma_len(sg);
2265 addr = sg_dma_address(sg);
2266 psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2267 psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2268 psg->sg[i].count = cpu_to_le32(count);
2269 byte_count += count;
2270 sg++;
2271 }
2272 psg->count = cpu_to_le32(sg_count);
2273 /* hba wants the size to be exact */
2274 if(byte_count > scsicmd->request_bufflen){
2275 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2276 (byte_count - scsicmd->request_bufflen);
2277 psg->sg[i-1].count = cpu_to_le32(temp);
2278 byte_count = scsicmd->request_bufflen;
2279 }
2280 /* Check for command underflow */
2281 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2282 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2283 byte_count, scsicmd->underflow);
2284 }
2285 }
2286 else if(scsicmd->request_bufflen) {
2287 scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
2288 scsicmd->request_buffer,
2289 scsicmd->request_bufflen,
2290 scsicmd->sc_data_direction);
2291 addr = scsicmd->SCp.dma_handle;
2292 psg->count = cpu_to_le32(1);
2293 psg->sg[0].addr[0] = cpu_to_le32(addr & 0xffffffff);
2294 psg->sg[0].addr[1] = cpu_to_le32(addr >> 32);
2295 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
2296 byte_count = scsicmd->request_bufflen;
2297 }
2298 return byte_count;
2299 }
2300
2301 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2302 {
2303 struct Scsi_Host *host = scsicmd->device->host;
2304 struct aac_dev *dev = (struct aac_dev *)host->hostdata;
2305 unsigned long byte_count = 0;
2306
2307 // Get rid of old data
2308 psg->count = 0;
2309 psg->sg[0].next = 0;
2310 psg->sg[0].prev = 0;
2311 psg->sg[0].addr[0] = 0;
2312 psg->sg[0].addr[1] = 0;
2313 psg->sg[0].count = 0;
2314 psg->sg[0].flags = 0;
2315 if (scsicmd->use_sg) {
2316 struct scatterlist *sg;
2317 int i;
2318 int sg_count;
2319 sg = (struct scatterlist *) scsicmd->request_buffer;
2320
2321 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2322 scsicmd->sc_data_direction);
2323
2324 for (i = 0; i < sg_count; i++) {
2325 int count = sg_dma_len(sg);
2326 u64 addr = sg_dma_address(sg);
2327 psg->sg[i].next = 0;
2328 psg->sg[i].prev = 0;
2329 psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2330 psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2331 psg->sg[i].count = cpu_to_le32(count);
2332 psg->sg[i].flags = 0;
2333 byte_count += count;
2334 sg++;
2335 }
2336 psg->count = cpu_to_le32(sg_count);
2337 /* hba wants the size to be exact */
2338 if(byte_count > scsicmd->request_bufflen){
2339 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2340 (byte_count - scsicmd->request_bufflen);
2341 psg->sg[i-1].count = cpu_to_le32(temp);
2342 byte_count = scsicmd->request_bufflen;
2343 }
2344 /* Check for command underflow */
2345 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2346 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2347 byte_count, scsicmd->underflow);
2348 }
2349 }
2350 else if(scsicmd->request_bufflen) {
2351 int count;
2352 u64 addr;
2353 scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
2354 scsicmd->request_buffer,
2355 scsicmd->request_bufflen,
2356 scsicmd->sc_data_direction);
2357 addr = scsicmd->SCp.dma_handle;
2358 count = scsicmd->request_bufflen;
2359 psg->count = cpu_to_le32(1);
2360 psg->sg[0].next = 0;
2361 psg->sg[0].prev = 0;
2362 psg->sg[0].addr[1] = cpu_to_le32((u32)(addr>>32));
2363 psg->sg[0].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2364 psg->sg[0].count = cpu_to_le32(count);
2365 psg->sg[0].flags = 0;
2366 byte_count = scsicmd->request_bufflen;
2367 }
2368 return byte_count;
2369 }
2370
2371 #ifdef AAC_DETAILED_STATUS_INFO
2372
2373 struct aac_srb_status_info {
2374 u32 status;
2375 char *str;
2376 };
2377
2378
2379 static struct aac_srb_status_info srb_status_info[] = {
2380 { SRB_STATUS_PENDING, "Pending Status"},
2381 { SRB_STATUS_SUCCESS, "Success"},
2382 { SRB_STATUS_ABORTED, "Aborted Command"},
2383 { SRB_STATUS_ABORT_FAILED, "Abort Failed"},
2384 { SRB_STATUS_ERROR, "Error Event"},
2385 { SRB_STATUS_BUSY, "Device Busy"},
2386 { SRB_STATUS_INVALID_REQUEST, "Invalid Request"},
2387 { SRB_STATUS_INVALID_PATH_ID, "Invalid Path ID"},
2388 { SRB_STATUS_NO_DEVICE, "No Device"},
2389 { SRB_STATUS_TIMEOUT, "Timeout"},
2390 { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2391 { SRB_STATUS_COMMAND_TIMEOUT, "Command Timeout"},
2392 { SRB_STATUS_MESSAGE_REJECTED, "Message Rejected"},
2393 { SRB_STATUS_BUS_RESET, "Bus Reset"},
2394 { SRB_STATUS_PARITY_ERROR, "Parity Error"},
2395 { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2396 { SRB_STATUS_NO_HBA, "No HBA"},
2397 { SRB_STATUS_DATA_OVERRUN, "Data Overrun/Data Underrun"},
2398 { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2399 { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2400 { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2401 { SRB_STATUS_REQUEST_FLUSHED, "Request Flushed"},
2402 { SRB_STATUS_DELAYED_RETRY, "Delayed Retry"},
2403 { SRB_STATUS_INVALID_LUN, "Invalid LUN"},
2404 { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2405 { SRB_STATUS_BAD_FUNCTION, "Bad Function"},
2406 { SRB_STATUS_ERROR_RECOVERY, "Error Recovery"},
2407 { SRB_STATUS_NOT_STARTED, "Not Started"},
2408 { SRB_STATUS_NOT_IN_USE, "Not In Use"},
2409 { SRB_STATUS_FORCE_ABORT, "Force Abort"},
2410 { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2411 { 0xff, "Unknown Error"}
2412 };
2413
2414 char *aac_get_status_string(u32 status)
2415 {
2416 int i;
2417
2418 for (i = 0; i < ARRAY_SIZE(srb_status_info); i++)
2419 if (srb_status_info[i].status == status)
2420 return srb_status_info[i].str;
2421
2422 return "Bad Status Code";
2423 }
2424
2425 #endif
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