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 <asm/semaphore.h>
36 #include <asm/uaccess.h>
37
38 #include <scsi/scsi.h>
39 #include <scsi/scsi_cmnd.h>
40 #include <scsi/scsi_device.h>
41 #include <scsi/scsi_host.h>
42
43 #include "aacraid.h"
44
45 /* values for inqd_pdt: Peripheral device type in plain English */
46 #define INQD_PDT_DA 0x00 /* Direct-access (DISK) device */
47 #define INQD_PDT_PROC 0x03 /* Processor device */
48 #define INQD_PDT_CHNGR 0x08 /* Changer (jukebox, scsi2) */
49 #define INQD_PDT_COMM 0x09 /* Communication device (scsi2) */
50 #define INQD_PDT_NOLUN2 0x1f /* Unknown Device (scsi2) */
51 #define INQD_PDT_NOLUN 0x7f /* Logical Unit Not Present */
52
53 #define INQD_PDT_DMASK 0x1F /* Peripheral Device Type Mask */
54 #define INQD_PDT_QMASK 0xE0 /* Peripheral Device Qualifer Mask */
55
56 #define MAX_FIB_DATA (sizeof(struct hw_fib) - sizeof(FIB_HEADER))
57
58 #define MAX_DRIVER_SG_SEGMENT_COUNT 17
59
60 /*
61 * Sense codes
62 */
63
64 #define SENCODE_NO_SENSE 0x00
65 #define SENCODE_END_OF_DATA 0x00
66 #define SENCODE_BECOMING_READY 0x04
67 #define SENCODE_INIT_CMD_REQUIRED 0x04
68 #define SENCODE_PARAM_LIST_LENGTH_ERROR 0x1A
69 #define SENCODE_INVALID_COMMAND 0x20
70 #define SENCODE_LBA_OUT_OF_RANGE 0x21
71 #define SENCODE_INVALID_CDB_FIELD 0x24
72 #define SENCODE_LUN_NOT_SUPPORTED 0x25
73 #define SENCODE_INVALID_PARAM_FIELD 0x26
74 #define SENCODE_PARAM_NOT_SUPPORTED 0x26
75 #define SENCODE_PARAM_VALUE_INVALID 0x26
76 #define SENCODE_RESET_OCCURRED 0x29
77 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x3E
78 #define SENCODE_INQUIRY_DATA_CHANGED 0x3F
79 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x39
80 #define SENCODE_DIAGNOSTIC_FAILURE 0x40
81 #define SENCODE_INTERNAL_TARGET_FAILURE 0x44
82 #define SENCODE_INVALID_MESSAGE_ERROR 0x49
83 #define SENCODE_LUN_FAILED_SELF_CONFIG 0x4c
84 #define SENCODE_OVERLAPPED_COMMAND 0x4E
85
86 /*
87 * Additional sense codes
88 */
89
90 #define ASENCODE_NO_SENSE 0x00
91 #define ASENCODE_END_OF_DATA 0x05
92 #define ASENCODE_BECOMING_READY 0x01
93 #define ASENCODE_INIT_CMD_REQUIRED 0x02
94 #define ASENCODE_PARAM_LIST_LENGTH_ERROR 0x00
95 #define ASENCODE_INVALID_COMMAND 0x00
96 #define ASENCODE_LBA_OUT_OF_RANGE 0x00
97 #define ASENCODE_INVALID_CDB_FIELD 0x00
98 #define ASENCODE_LUN_NOT_SUPPORTED 0x00
99 #define ASENCODE_INVALID_PARAM_FIELD 0x00
100 #define ASENCODE_PARAM_NOT_SUPPORTED 0x01
101 #define ASENCODE_PARAM_VALUE_INVALID 0x02
102 #define ASENCODE_RESET_OCCURRED 0x00
103 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x00
104 #define ASENCODE_INQUIRY_DATA_CHANGED 0x03
105 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x00
106 #define ASENCODE_DIAGNOSTIC_FAILURE 0x80
107 #define ASENCODE_INTERNAL_TARGET_FAILURE 0x00
108 #define ASENCODE_INVALID_MESSAGE_ERROR 0x00
109 #define ASENCODE_LUN_FAILED_SELF_CONFIG 0x00
110 #define ASENCODE_OVERLAPPED_COMMAND 0x00
111
112 #define BYTE0(x) (unsigned char)(x)
113 #define BYTE1(x) (unsigned char)((x) >> 8)
114 #define BYTE2(x) (unsigned char)((x) >> 16)
115 #define BYTE3(x) (unsigned char)((x) >> 24)
116
117 /*------------------------------------------------------------------------------
118 * S T R U C T S / T Y P E D E F S
119 *----------------------------------------------------------------------------*/
120 /* SCSI inquiry data */
121 struct inquiry_data {
122 u8 inqd_pdt; /* Peripheral qualifier | Peripheral Device Type */
123 u8 inqd_dtq; /* RMB | Device Type Qualifier */
124 u8 inqd_ver; /* ISO version | ECMA version | ANSI-approved version */
125 u8 inqd_rdf; /* AENC | TrmIOP | Response data format */
126 u8 inqd_len; /* Additional length (n-4) */
127 u8 inqd_pad1[2];/* Reserved - must be zero */
128 u8 inqd_pad2; /* RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */
129 u8 inqd_vid[8]; /* Vendor ID */
130 u8 inqd_pid[16];/* Product ID */
131 u8 inqd_prl[4]; /* Product Revision Level */
132 };
133
134 /*
135 * M O D U L E G L O B A L S
136 */
137
138 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
139 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
140 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
141 #ifdef AAC_DETAILED_STATUS_INFO
142 static char *aac_get_status_string(u32 status);
143 #endif
144
145 /*
146 * Non dasd selection is handled entirely in aachba now
147 */
148
149 static int nondasd = -1;
150 static int dacmode = -1;
151
152 static int commit = -1;
153
154 module_param(nondasd, int, 0);
155 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
156 module_param(dacmode, int, 0);
157 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
158 module_param(commit, int, 0);
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
161 /**
162 * aac_get_config_status - check the adapter configuration
163 * @common: adapter to query
164 *
165 * Query config status, and commit the configuration if needed.
166 */
167 int aac_get_config_status(struct aac_dev *dev)
168 {
169 int status = 0;
170 struct fib * fibptr;
171
172 if (!(fibptr = fib_alloc(dev)))
173 return -ENOMEM;
174
175 fib_init(fibptr);
176 {
177 struct aac_get_config_status *dinfo;
178 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
179
180 dinfo->command = cpu_to_le32(VM_ContainerConfig);
181 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
182 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
183 }
184
185 status = fib_send(ContainerCommand,
186 fibptr,
187 sizeof (struct aac_get_config_status),
188 FsaNormal,
189 1, 1,
190 NULL, NULL);
191 if (status < 0 ) {
192 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
193 } else {
194 struct aac_get_config_status_resp *reply
195 = (struct aac_get_config_status_resp *) fib_data(fibptr);
196 dprintk((KERN_WARNING
197 "aac_get_config_status: response=%d status=%d action=%d\n",
198 reply->response, reply->status, reply->data.action));
199 if ((reply->response != ST_OK)
200 || (reply->status != CT_OK)
201 || (reply->data.action > CFACT_PAUSE)) {
202 printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
203 status = -EINVAL;
204 }
205 }
206 fib_complete(fibptr);
207 /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
208 if (status >= 0) {
209 if (commit == 1) {
210 struct aac_commit_config * dinfo;
211 fib_init(fibptr);
212 dinfo = (struct aac_commit_config *) fib_data(fibptr);
213
214 dinfo->command = cpu_to_le32(VM_ContainerConfig);
215 dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
216
217 status = fib_send(ContainerCommand,
218 fibptr,
219 sizeof (struct aac_commit_config),
220 FsaNormal,
221 1, 1,
222 NULL, NULL);
223 fib_complete(fibptr);
224 } else if (commit == 0) {
225 printk(KERN_WARNING
226 "aac_get_config_status: Foreign device configurations are being ignored\n");
227 }
228 }
229 fib_free(fibptr);
230 return status;
231 }
232
233 /**
234 * aac_get_containers - list containers
235 * @common: adapter to probe
236 *
237 * Make a list of all containers on this controller
238 */
239 int aac_get_containers(struct aac_dev *dev)
240 {
241 struct fsa_dev_info *fsa_dev_ptr;
242 u32 index;
243 int status = 0;
244 struct fib * fibptr;
245 unsigned instance;
246 struct aac_get_container_count *dinfo;
247 struct aac_get_container_count_resp *dresp;
248 int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
249
250 instance = dev->scsi_host_ptr->unique_id;
251
252 if (!(fibptr = fib_alloc(dev)))
253 return -ENOMEM;
254
255 fib_init(fibptr);
256 dinfo = (struct aac_get_container_count *) fib_data(fibptr);
257 dinfo->command = cpu_to_le32(VM_ContainerConfig);
258 dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
259
260 status = fib_send(ContainerCommand,
261 fibptr,
262 sizeof (struct aac_get_container_count),
263 FsaNormal,
264 1, 1,
265 NULL, NULL);
266 if (status >= 0) {
267 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
268 maximum_num_containers = dresp->ContainerSwitchEntries;
269 fib_complete(fibptr);
270 }
271
272 if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
273 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
274
275 fsa_dev_ptr = (struct fsa_dev_info *) kmalloc(
276 sizeof(*fsa_dev_ptr) * maximum_num_containers, GFP_KERNEL);
277 if (!fsa_dev_ptr) {
278 fib_free(fibptr);
279 return -ENOMEM;
280 }
281 memset(fsa_dev_ptr, 0, sizeof(*fsa_dev_ptr) * maximum_num_containers);
282
283 dev->fsa_dev = fsa_dev_ptr;
284 dev->maximum_num_containers = maximum_num_containers;
285
286 for (index = 0; index < dev->maximum_num_containers; index++) {
287 struct aac_query_mount *dinfo;
288 struct aac_mount *dresp;
289
290 fsa_dev_ptr[index].devname[0] = '\0';
291
292 fib_init(fibptr);
293 dinfo = (struct aac_query_mount *) fib_data(fibptr);
294
295 dinfo->command = cpu_to_le32(VM_NameServe);
296 dinfo->count = cpu_to_le32(index);
297 dinfo->type = cpu_to_le32(FT_FILESYS);
298
299 status = fib_send(ContainerCommand,
300 fibptr,
301 sizeof (struct aac_query_mount),
302 FsaNormal,
303 1, 1,
304 NULL, NULL);
305 if (status < 0 ) {
306 printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
307 break;
308 }
309 dresp = (struct aac_mount *)fib_data(fibptr);
310
311 dprintk ((KERN_DEBUG
312 "VM_NameServe cid=%d status=%d vol=%d state=%d cap=%u\n",
313 (int)index, (int)le32_to_cpu(dresp->status),
314 (int)le32_to_cpu(dresp->mnt[0].vol),
315 (int)le32_to_cpu(dresp->mnt[0].state),
316 (unsigned)le32_to_cpu(dresp->mnt[0].capacity)));
317 if ((le32_to_cpu(dresp->status) == ST_OK) &&
318 (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
319 (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
320 fsa_dev_ptr[index].valid = 1;
321 fsa_dev_ptr[index].type = le32_to_cpu(dresp->mnt[0].vol);
322 fsa_dev_ptr[index].size = le32_to_cpu(dresp->mnt[0].capacity);
323 if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
324 fsa_dev_ptr[index].ro = 1;
325 }
326 fib_complete(fibptr);
327 /*
328 * If there are no more containers, then stop asking.
329 */
330 if ((index + 1) >= le32_to_cpu(dresp->count)){
331 break;
332 }
333 }
334 fib_free(fibptr);
335 return status;
336 }
337
338 static void aac_io_done(struct scsi_cmnd * scsicmd)
339 {
340 unsigned long cpu_flags;
341 struct Scsi_Host *host = scsicmd->device->host;
342 spin_lock_irqsave(host->host_lock, cpu_flags);
343 scsicmd->scsi_done(scsicmd);
344 spin_unlock_irqrestore(host->host_lock, cpu_flags);
345 }
346
347 static void get_container_name_callback(void *context, struct fib * fibptr)
348 {
349 struct aac_get_name_resp * get_name_reply;
350 struct scsi_cmnd * scsicmd;
351
352 scsicmd = (struct scsi_cmnd *) context;
353
354 dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
355 if (fibptr == NULL)
356 BUG();
357
358 get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
359 /* Failure is irrelevant, using default value instead */
360 if ((le32_to_cpu(get_name_reply->status) == CT_OK)
361 && (get_name_reply->data[0] != '\0')) {
362 int count;
363 char * dp;
364 char * sp = get_name_reply->data;
365 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
366 while (*sp == ' ')
367 ++sp;
368 count = sizeof(((struct inquiry_data *)NULL)->inqd_pid);
369 dp = ((struct inquiry_data *)scsicmd->request_buffer)->inqd_pid;
370 if (*sp) do {
371 *dp++ = (*sp) ? *sp++ : ' ';
372 } while (--count > 0);
373 }
374 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
375
376 fib_complete(fibptr);
377 fib_free(fibptr);
378 aac_io_done(scsicmd);
379 }
380
381 /**
382 * aac_get_container_name - get container name, none blocking.
383 */
384 static int aac_get_container_name(struct scsi_cmnd * scsicmd, int cid)
385 {
386 int status;
387 struct aac_get_name *dinfo;
388 struct fib * cmd_fibcontext;
389 struct aac_dev * dev;
390
391 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
392
393 if (!(cmd_fibcontext = fib_alloc(dev)))
394 return -ENOMEM;
395
396 fib_init(cmd_fibcontext);
397 dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
398
399 dinfo->command = cpu_to_le32(VM_ContainerConfig);
400 dinfo->type = cpu_to_le32(CT_READ_NAME);
401 dinfo->cid = cpu_to_le32(cid);
402 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
403
404 status = fib_send(ContainerCommand,
405 cmd_fibcontext,
406 sizeof (struct aac_get_name),
407 FsaNormal,
408 0, 1,
409 (fib_callback) get_container_name_callback,
410 (void *) scsicmd);
411
412 /*
413 * Check that the command queued to the controller
414 */
415 if (status == -EINPROGRESS)
416 return 0;
417
418 printk(KERN_WARNING "aac_get_container_name: fib_send failed with status: %d.\n", status);
419 fib_complete(cmd_fibcontext);
420 fib_free(cmd_fibcontext);
421 return -1;
422 }
423
424 /**
425 * probe_container - query a logical volume
426 * @dev: device to query
427 * @cid: container identifier
428 *
429 * Queries the controller about the given volume. The volume information
430 * is updated in the struct fsa_dev_info structure rather than returned.
431 */
432
433 static int probe_container(struct aac_dev *dev, int cid)
434 {
435 struct fsa_dev_info *fsa_dev_ptr;
436 int status;
437 struct aac_query_mount *dinfo;
438 struct aac_mount *dresp;
439 struct fib * fibptr;
440 unsigned instance;
441
442 fsa_dev_ptr = dev->fsa_dev;
443 instance = dev->scsi_host_ptr->unique_id;
444
445 if (!(fibptr = fib_alloc(dev)))
446 return -ENOMEM;
447
448 fib_init(fibptr);
449
450 dinfo = (struct aac_query_mount *)fib_data(fibptr);
451
452 dinfo->command = cpu_to_le32(VM_NameServe);
453 dinfo->count = cpu_to_le32(cid);
454 dinfo->type = cpu_to_le32(FT_FILESYS);
455
456 status = fib_send(ContainerCommand,
457 fibptr,
458 sizeof(struct aac_query_mount),
459 FsaNormal,
460 1, 1,
461 NULL, NULL);
462 if (status < 0) {
463 printk(KERN_WARNING "aacraid: probe_containers query failed.\n");
464 goto error;
465 }
466
467 dresp = (struct aac_mount *) fib_data(fibptr);
468
469 if ((le32_to_cpu(dresp->status) == ST_OK) &&
470 (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
471 (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
472 fsa_dev_ptr[cid].valid = 1;
473 fsa_dev_ptr[cid].type = le32_to_cpu(dresp->mnt[0].vol);
474 fsa_dev_ptr[cid].size = le32_to_cpu(dresp->mnt[0].capacity);
475 if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
476 fsa_dev_ptr[cid].ro = 1;
477 }
478
479 error:
480 fib_complete(fibptr);
481 fib_free(fibptr);
482
483 return status;
484 }
485
486 /* Local Structure to set SCSI inquiry data strings */
487 struct scsi_inq {
488 char vid[8]; /* Vendor ID */
489 char pid[16]; /* Product ID */
490 char prl[4]; /* Product Revision Level */
491 };
492
493 /**
494 * InqStrCopy - string merge
495 * @a: string to copy from
496 * @b: string to copy to
497 *
498 * Copy a String from one location to another
499 * without copying \0
500 */
501
502 static void inqstrcpy(char *a, char *b)
503 {
504
505 while(*a != (char)0)
506 *b++ = *a++;
507 }
508
509 static char *container_types[] = {
510 "None",
511 "Volume",
512 "Mirror",
513 "Stripe",
514 "RAID5",
515 "SSRW",
516 "SSRO",
517 "Morph",
518 "Legacy",
519 "RAID4",
520 "RAID10",
521 "RAID00",
522 "V-MIRRORS",
523 "PSEUDO R4",
524 "RAID50",
525 "Unknown"
526 };
527
528
529
530 /* Function: setinqstr
531 *
532 * Arguments: [1] pointer to void [1] int
533 *
534 * Purpose: Sets SCSI inquiry data strings for vendor, product
535 * and revision level. Allows strings to be set in platform dependant
536 * files instead of in OS dependant driver source.
537 */
538
539 static void setinqstr(int devtype, void *data, int tindex)
540 {
541 struct scsi_inq *str;
542 struct aac_driver_ident *mp;
543
544 mp = aac_get_driver_ident(devtype);
545
546 str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
547
548 inqstrcpy (mp->vname, str->vid);
549 inqstrcpy (mp->model, str->pid); /* last six chars reserved for vol type */
550
551 if (tindex < (sizeof(container_types)/sizeof(char *))){
552 char *findit = str->pid;
553
554 for ( ; *findit != ' '; findit++); /* walk till we find a space */
555 /* RAID is superfluous in the context of a RAID device */
556 if (memcmp(findit-4, "RAID", 4) == 0)
557 *(findit -= 4) = ' ';
558 inqstrcpy (container_types[tindex], findit + 1);
559 }
560 inqstrcpy ("V1.0", str->prl);
561 }
562
563 void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
564 u8 a_sense_code, u8 incorrect_length,
565 u8 bit_pointer, u16 field_pointer,
566 u32 residue)
567 {
568 sense_buf[0] = 0xF0; /* Sense data valid, err code 70h (current error) */
569 sense_buf[1] = 0; /* Segment number, always zero */
570
571 if (incorrect_length) {
572 sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
573 sense_buf[3] = BYTE3(residue);
574 sense_buf[4] = BYTE2(residue);
575 sense_buf[5] = BYTE1(residue);
576 sense_buf[6] = BYTE0(residue);
577 } else
578 sense_buf[2] = sense_key; /* Sense key */
579
580 if (sense_key == ILLEGAL_REQUEST)
581 sense_buf[7] = 10; /* Additional sense length */
582 else
583 sense_buf[7] = 6; /* Additional sense length */
584
585 sense_buf[12] = sense_code; /* Additional sense code */
586 sense_buf[13] = a_sense_code; /* Additional sense code qualifier */
587 if (sense_key == ILLEGAL_REQUEST) {
588 sense_buf[15] = 0;
589
590 if (sense_code == SENCODE_INVALID_PARAM_FIELD)
591 sense_buf[15] = 0x80;/* Std sense key specific field */
592 /* Illegal parameter is in the parameter block */
593
594 if (sense_code == SENCODE_INVALID_CDB_FIELD)
595 sense_buf[15] = 0xc0;/* Std sense key specific field */
596 /* Illegal parameter is in the CDB block */
597 sense_buf[15] |= bit_pointer;
598 sense_buf[16] = field_pointer >> 8; /* MSB */
599 sense_buf[17] = field_pointer; /* LSB */
600 }
601 }
602
603 int aac_get_adapter_info(struct aac_dev* dev)
604 {
605 struct fib* fibptr;
606 struct aac_adapter_info* info;
607 int rcode;
608 u32 tmp;
609 if (!(fibptr = fib_alloc(dev)))
610 return -ENOMEM;
611
612 fib_init(fibptr);
613 info = (struct aac_adapter_info*) fib_data(fibptr);
614
615 memset(info,0,sizeof(struct aac_adapter_info));
616
617 rcode = fib_send(RequestAdapterInfo,
618 fibptr,
619 sizeof(struct aac_adapter_info),
620 FsaNormal,
621 1, 1,
622 NULL,
623 NULL);
624
625 memcpy(&dev->adapter_info, info, sizeof(struct aac_adapter_info));
626
627 tmp = dev->adapter_info.kernelrev;
628 printk(KERN_INFO"%s%d: kernel %d.%d.%d build %d\n",
629 dev->name, dev->id,
630 tmp>>24,(tmp>>16)&0xff,(tmp>>8)&0xff,
631 dev->adapter_info.kernelbuild);
632 tmp = dev->adapter_info.monitorrev;
633 printk(KERN_INFO"%s%d: monitor %d.%d.%d build %d\n",
634 dev->name, dev->id,
635 tmp>>24,(tmp>>16)&0xff,(tmp>>8)&0xff,
636 dev->adapter_info.monitorbuild);
637 tmp = dev->adapter_info.biosrev;
638 printk(KERN_INFO"%s%d: bios %d.%d.%d build %d\n",
639 dev->name, dev->id,
640 tmp>>24,(tmp>>16)&0xff,(tmp>>8)&0xff,
641 dev->adapter_info.biosbuild);
642 printk(KERN_INFO"%s%d: serial %x%x\n",
643 dev->name, dev->id,
644 dev->adapter_info.serial[0],
645 dev->adapter_info.serial[1]);
646
647 dev->nondasd_support = 0;
648 dev->raid_scsi_mode = 0;
649 if(dev->adapter_info.options & AAC_OPT_NONDASD){
650 dev->nondasd_support = 1;
651 }
652
653 /*
654 * If the firmware supports ROMB RAID/SCSI mode and we are currently
655 * in RAID/SCSI mode, set the flag. For now if in this mode we will
656 * force nondasd support on. If we decide to allow the non-dasd flag
657 * additional changes changes will have to be made to support
658 * RAID/SCSI. the function aac_scsi_cmd in this module will have to be
659 * changed to support the new dev->raid_scsi_mode flag instead of
660 * leaching off of the dev->nondasd_support flag. Also in linit.c the
661 * function aac_detect will have to be modified where it sets up the
662 * max number of channels based on the aac->nondasd_support flag only.
663 */
664 if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
665 (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
666 dev->nondasd_support = 1;
667 dev->raid_scsi_mode = 1;
668 }
669 if (dev->raid_scsi_mode != 0)
670 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
671 dev->name, dev->id);
672
673 if(nondasd != -1) {
674 dev->nondasd_support = (nondasd!=0);
675 }
676 if(dev->nondasd_support != 0){
677 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
678 }
679
680 dev->dac_support = 0;
681 if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
682 printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id);
683 dev->dac_support = 1;
684 }
685
686 if(dacmode != -1) {
687 dev->dac_support = (dacmode!=0);
688 }
689 if(dev->dac_support != 0) {
690 if (!pci_set_dma_mask(dev->pdev, 0xFFFFFFFFFFFFFFFFULL) &&
691 !pci_set_consistent_dma_mask(dev->pdev, 0xFFFFFFFFFFFFFFFFULL)) {
692 printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
693 dev->name, dev->id);
694 } else if (!pci_set_dma_mask(dev->pdev, 0xFFFFFFFFULL) &&
695 !pci_set_consistent_dma_mask(dev->pdev, 0xFFFFFFFFULL)) {
696 printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
697 dev->name, dev->id);
698 dev->dac_support = 0;
699 } else {
700 printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
701 dev->name, dev->id);
702 rcode = -ENOMEM;
703 }
704 }
705
706 fib_complete(fibptr);
707 fib_free(fibptr);
708
709 return rcode;
710 }
711
712
713 static void read_callback(void *context, struct fib * fibptr)
714 {
715 struct aac_dev *dev;
716 struct aac_read_reply *readreply;
717 struct scsi_cmnd *scsicmd;
718 u32 lba;
719 u32 cid;
720
721 scsicmd = (struct scsi_cmnd *) context;
722
723 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
724 cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
725
726 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
727 dprintk((KERN_DEBUG "read_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
728
729 if (fibptr == NULL)
730 BUG();
731
732 if(scsicmd->use_sg)
733 pci_unmap_sg(dev->pdev,
734 (struct scatterlist *)scsicmd->buffer,
735 scsicmd->use_sg,
736 scsicmd->sc_data_direction);
737 else if(scsicmd->request_bufflen)
738 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle,
739 scsicmd->request_bufflen,
740 scsicmd->sc_data_direction);
741 readreply = (struct aac_read_reply *)fib_data(fibptr);
742 if (le32_to_cpu(readreply->status) == ST_OK)
743 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
744 else {
745 printk(KERN_WARNING "read_callback: read failed, status = %d\n", readreply->status);
746 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
747 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
748 HARDWARE_ERROR,
749 SENCODE_INTERNAL_TARGET_FAILURE,
750 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
751 0, 0);
752 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
753 (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
754 ? sizeof(scsicmd->sense_buffer)
755 : sizeof(dev->fsa_dev[cid].sense_data));
756 }
757 fib_complete(fibptr);
758 fib_free(fibptr);
759
760 aac_io_done(scsicmd);
761 }
762
763 static void write_callback(void *context, struct fib * fibptr)
764 {
765 struct aac_dev *dev;
766 struct aac_write_reply *writereply;
767 struct scsi_cmnd *scsicmd;
768 u32 lba;
769 u32 cid;
770
771 scsicmd = (struct scsi_cmnd *) context;
772 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
773 cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
774
775 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
776 dprintk((KERN_DEBUG "write_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
777 if (fibptr == NULL)
778 BUG();
779
780 if(scsicmd->use_sg)
781 pci_unmap_sg(dev->pdev,
782 (struct scatterlist *)scsicmd->buffer,
783 scsicmd->use_sg,
784 scsicmd->sc_data_direction);
785 else if(scsicmd->request_bufflen)
786 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle,
787 scsicmd->request_bufflen,
788 scsicmd->sc_data_direction);
789
790 writereply = (struct aac_write_reply *) fib_data(fibptr);
791 if (le32_to_cpu(writereply->status) == ST_OK)
792 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
793 else {
794 printk(KERN_WARNING "write_callback: write failed, status = %d\n", writereply->status);
795 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
796 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
797 HARDWARE_ERROR,
798 SENCODE_INTERNAL_TARGET_FAILURE,
799 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
800 0, 0);
801 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
802 sizeof(struct sense_data));
803 }
804
805 fib_complete(fibptr);
806 fib_free(fibptr);
807 aac_io_done(scsicmd);
808 }
809
810 int aac_read(struct scsi_cmnd * scsicmd, int cid)
811 {
812 u32 lba;
813 u32 count;
814 int status;
815
816 u16 fibsize;
817 struct aac_dev *dev;
818 struct fib * cmd_fibcontext;
819
820 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
821 /*
822 * Get block address and transfer length
823 */
824 if (scsicmd->cmnd[0] == READ_6) /* 6 byte command */
825 {
826 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", cid));
827
828 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
829 count = scsicmd->cmnd[4];
830
831 if (count == 0)
832 count = 256;
833 } else {
834 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", cid));
835
836 lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
837 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
838 }
839 dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
840 /*
841 * Alocate and initialize a Fib
842 */
843 if (!(cmd_fibcontext = fib_alloc(dev))) {
844 return -1;
845 }
846
847 fib_init(cmd_fibcontext);
848
849 if(dev->dac_support == 1) {
850 struct aac_read64 *readcmd;
851 readcmd = (struct aac_read64 *) fib_data(cmd_fibcontext);
852 readcmd->command = cpu_to_le32(VM_CtHostRead64);
853 readcmd->cid = cpu_to_le16(cid);
854 readcmd->sector_count = cpu_to_le16(count);
855 readcmd->block = cpu_to_le32(lba);
856 readcmd->pad = cpu_to_le16(0);
857 readcmd->flags = cpu_to_le16(0);
858
859 aac_build_sg64(scsicmd, &readcmd->sg);
860 if(readcmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT)
861 BUG();
862 fibsize = sizeof(struct aac_read64) + ((readcmd->sg.count - 1) * sizeof (struct sgentry64));
863 /*
864 * Now send the Fib to the adapter
865 */
866 status = fib_send(ContainerCommand64,
867 cmd_fibcontext,
868 fibsize,
869 FsaNormal,
870 0, 1,
871 (fib_callback) read_callback,
872 (void *) scsicmd);
873 } else {
874 struct aac_read *readcmd;
875 readcmd = (struct aac_read *) fib_data(cmd_fibcontext);
876 readcmd->command = cpu_to_le32(VM_CtBlockRead);
877 readcmd->cid = cpu_to_le32(cid);
878 readcmd->block = cpu_to_le32(lba);
879 readcmd->count = cpu_to_le32(count * 512);
880
881 if (count * 512 > (64 * 1024))
882 BUG();
883
884 aac_build_sg(scsicmd, &readcmd->sg);
885 if(readcmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT)
886 BUG();
887 fibsize = sizeof(struct aac_read) + ((readcmd->sg.count - 1) * sizeof (struct sgentry));
888 /*
889 * Now send the Fib to the adapter
890 */
891 status = fib_send(ContainerCommand,
892 cmd_fibcontext,
893 fibsize,
894 FsaNormal,
895 0, 1,
896 (fib_callback) read_callback,
897 (void *) scsicmd);
898 }
899
900
901
902 /*
903 * Check that the command queued to the controller
904 */
905 if (status == -EINPROGRESS)
906 {
907 dprintk("read queued.\n");
908 return 0;
909 }
910
911 printk(KERN_WARNING "aac_read: fib_send failed with status: %d.\n", status);
912 /*
913 * For some reason, the Fib didn't queue, return QUEUE_FULL
914 */
915 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
916 aac_io_done(scsicmd);
917 fib_complete(cmd_fibcontext);
918 fib_free(cmd_fibcontext);
919 return 0;
920 }
921
922 static int aac_write(struct scsi_cmnd * scsicmd, int cid)
923 {
924 u32 lba;
925 u32 count;
926 int status;
927 u16 fibsize;
928 struct aac_dev *dev;
929 struct fib * cmd_fibcontext;
930
931 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
932 /*
933 * Get block address and transfer length
934 */
935 if (scsicmd->cmnd[0] == WRITE_6) /* 6 byte command */
936 {
937 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
938 count = scsicmd->cmnd[4];
939 if (count == 0)
940 count = 256;
941 } else {
942 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", cid));
943 lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
944 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
945 }
946 dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
947 /*
948 * Allocate and initialize a Fib then setup a BlockWrite command
949 */
950 if (!(cmd_fibcontext = fib_alloc(dev))) {
951 scsicmd->result = DID_ERROR << 16;
952 aac_io_done(scsicmd);
953 return 0;
954 }
955 fib_init(cmd_fibcontext);
956
957 if(dev->dac_support == 1) {
958 struct aac_write64 *writecmd;
959 writecmd = (struct aac_write64 *) fib_data(cmd_fibcontext);
960 writecmd->command = cpu_to_le32(VM_CtHostWrite64);
961 writecmd->cid = cpu_to_le16(cid);
962 writecmd->sector_count = cpu_to_le16(count);
963 writecmd->block = cpu_to_le32(lba);
964 writecmd->pad = cpu_to_le16(0);
965 writecmd->flags = cpu_to_le16(0);
966
967 aac_build_sg64(scsicmd, &writecmd->sg);
968 if(writecmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT)
969 BUG();
970 fibsize = sizeof(struct aac_write64) + ((writecmd->sg.count - 1) * sizeof (struct sgentry64));
971 /*
972 * Now send the Fib to the adapter
973 */
974 status = fib_send(ContainerCommand64,
975 cmd_fibcontext,
976 fibsize,
977 FsaNormal,
978 0, 1,
979 (fib_callback) write_callback,
980 (void *) scsicmd);
981 } else {
982 struct aac_write *writecmd;
983 writecmd = (struct aac_write *) fib_data(cmd_fibcontext);
984 writecmd->command = cpu_to_le32(VM_CtBlockWrite);
985 writecmd->cid = cpu_to_le32(cid);
986 writecmd->block = cpu_to_le32(lba);
987 writecmd->count = cpu_to_le32(count * 512);
988 writecmd->sg.count = cpu_to_le32(1);
989 /* ->stable is not used - it did mean which type of write */
990
991 if (count * 512 > (64 * 1024)) {
992 BUG();
993 }
994
995 aac_build_sg(scsicmd, &writecmd->sg);
996 if(writecmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT)
997 BUG();
998 fibsize = sizeof(struct aac_write) + ((writecmd->sg.count - 1) * sizeof (struct sgentry));
999 /*
1000 * Now send the Fib to the adapter
1001 */
1002 status = fib_send(ContainerCommand,
1003 cmd_fibcontext,
1004 fibsize,
1005 FsaNormal,
1006 0, 1,
1007 (fib_callback) write_callback,
1008 (void *) scsicmd);
1009 }
1010
1011 /*
1012 * Check that the command queued to the controller
1013 */
1014 if (status == -EINPROGRESS)
1015 {
1016 dprintk("write queued.\n");
1017 return 0;
1018 }
1019
1020 printk(KERN_WARNING "aac_write: fib_send failed with status: %d\n", status);
1021 /*
1022 * For some reason, the Fib didn't queue, return QUEUE_FULL
1023 */
1024 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1025 aac_io_done(scsicmd);
1026
1027 fib_complete(cmd_fibcontext);
1028 fib_free(cmd_fibcontext);
1029 return 0;
1030 }
1031
1032 static void synchronize_callback(void *context, struct fib *fibptr)
1033 {
1034 struct aac_synchronize_reply *synchronizereply;
1035 struct scsi_cmnd *cmd;
1036
1037 cmd = context;
1038
1039 dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1040 smp_processor_id(), jiffies));
1041 BUG_ON(fibptr == NULL);
1042
1043
1044 synchronizereply = fib_data(fibptr);
1045 if (le32_to_cpu(synchronizereply->status) == CT_OK)
1046 cmd->result = DID_OK << 16 |
1047 COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1048 else {
1049 struct scsi_device *sdev = cmd->device;
1050 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
1051 u32 cid = ID_LUN_TO_CONTAINER(sdev->id, sdev->lun);
1052 printk(KERN_WARNING
1053 "synchronize_callback: synchronize failed, status = %d\n",
1054 synchronizereply->status);
1055 cmd->result = DID_OK << 16 |
1056 COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1057 set_sense((u8 *)&dev->fsa_dev[cid].sense_data,
1058 HARDWARE_ERROR,
1059 SENCODE_INTERNAL_TARGET_FAILURE,
1060 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1061 0, 0);
1062 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1063 min(sizeof(dev->fsa_dev[cid].sense_data),
1064 sizeof(cmd->sense_buffer)));
1065 }
1066
1067 fib_complete(fibptr);
1068 fib_free(fibptr);
1069 aac_io_done(cmd);
1070 }
1071
1072 static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
1073 {
1074 int status;
1075 struct fib *cmd_fibcontext;
1076 struct aac_synchronize *synchronizecmd;
1077 struct scsi_cmnd *cmd;
1078 struct scsi_device *sdev = scsicmd->device;
1079 int active = 0;
1080 unsigned long flags;
1081
1082 /*
1083 * Wait for all commands to complete to this specific
1084 * target (block).
1085 */
1086 spin_lock_irqsave(&sdev->list_lock, flags);
1087 list_for_each_entry(cmd, &sdev->cmd_list, list)
1088 if (cmd != scsicmd && cmd->serial_number != 0) {
1089 ++active;
1090 break;
1091 }
1092
1093 spin_unlock_irqrestore(&sdev->list_lock, flags);
1094
1095 /*
1096 * Yield the processor (requeue for later)
1097 */
1098 if (active)
1099 return SCSI_MLQUEUE_DEVICE_BUSY;
1100
1101 /*
1102 * Alocate and initialize a Fib
1103 */
1104 if (!(cmd_fibcontext =
1105 fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata)))
1106 return SCSI_MLQUEUE_HOST_BUSY;
1107
1108 fib_init(cmd_fibcontext);
1109
1110 synchronizecmd = fib_data(cmd_fibcontext);
1111 synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1112 synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1113 synchronizecmd->cid = cpu_to_le32(cid);
1114 synchronizecmd->count =
1115 cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1116
1117 /*
1118 * Now send the Fib to the adapter
1119 */
1120 status = fib_send(ContainerCommand,
1121 cmd_fibcontext,
1122 sizeof(struct aac_synchronize),
1123 FsaNormal,
1124 0, 1,
1125 (fib_callback)synchronize_callback,
1126 (void *)scsicmd);
1127
1128 /*
1129 * Check that the command queued to the controller
1130 */
1131 if (status == -EINPROGRESS)
1132 return 0;
1133
1134 printk(KERN_WARNING
1135 "aac_synchronize: fib_send failed with status: %d.\n", status);
1136 fib_complete(cmd_fibcontext);
1137 fib_free(cmd_fibcontext);
1138 return SCSI_MLQUEUE_HOST_BUSY;
1139 }
1140
1141 /**
1142 * aac_scsi_cmd() - Process SCSI command
1143 * @scsicmd: SCSI command block
1144 *
1145 * Emulate a SCSI command and queue the required request for the
1146 * aacraid firmware.
1147 */
1148
1149 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1150 {
1151 u32 cid = 0;
1152 struct Scsi_Host *host = scsicmd->device->host;
1153 struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1154 struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1155 int cardtype = dev->cardtype;
1156 int ret;
1157
1158 /*
1159 * If the bus, id or lun is out of range, return fail
1160 * Test does not apply to ID 16, the pseudo id for the controller
1161 * itself.
1162 */
1163 if (scsicmd->device->id != host->this_id) {
1164 if ((scsicmd->device->channel == 0) ){
1165 if( (scsicmd->device->id >= dev->maximum_num_containers) || (scsicmd->device->lun != 0)){
1166 scsicmd->result = DID_NO_CONNECT << 16;
1167 scsicmd->scsi_done(scsicmd);
1168 return 0;
1169 }
1170 cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
1171
1172 /*
1173 * If the target container doesn't exist, it may have
1174 * been newly created
1175 */
1176 if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1177 switch (scsicmd->cmnd[0]) {
1178 case INQUIRY:
1179 case READ_CAPACITY:
1180 case TEST_UNIT_READY:
1181 spin_unlock_irq(host->host_lock);
1182 probe_container(dev, cid);
1183 spin_lock_irq(host->host_lock);
1184 if (fsa_dev_ptr[cid].valid == 0) {
1185 scsicmd->result = DID_NO_CONNECT << 16;
1186 scsicmd->scsi_done(scsicmd);
1187 return 0;
1188 }
1189 default:
1190 break;
1191 }
1192 }
1193 /*
1194 * If the target container still doesn't exist,
1195 * return failure
1196 */
1197 if (fsa_dev_ptr[cid].valid == 0) {
1198 scsicmd->result = DID_BAD_TARGET << 16;
1199 scsicmd->scsi_done(scsicmd);
1200 return 0;
1201 }
1202 } else { /* check for physical non-dasd devices */
1203 if(dev->nondasd_support == 1){
1204 return aac_send_srb_fib(scsicmd);
1205 } else {
1206 scsicmd->result = DID_NO_CONNECT << 16;
1207 scsicmd->scsi_done(scsicmd);
1208 return 0;
1209 }
1210 }
1211 }
1212 /*
1213 * else Command for the controller itself
1214 */
1215 else if ((scsicmd->cmnd[0] != INQUIRY) && /* only INQUIRY & TUR cmnd supported for controller */
1216 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1217 {
1218 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1219 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1220 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1221 ILLEGAL_REQUEST,
1222 SENCODE_INVALID_COMMAND,
1223 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1224 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1225 (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1226 ? sizeof(scsicmd->sense_buffer)
1227 : sizeof(dev->fsa_dev[cid].sense_data));
1228 scsicmd->scsi_done(scsicmd);
1229 return 0;
1230 }
1231
1232
1233 /* Handle commands here that don't really require going out to the adapter */
1234 switch (scsicmd->cmnd[0]) {
1235 case INQUIRY:
1236 {
1237 struct inquiry_data *inq_data_ptr;
1238
1239 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scsicmd->device->id));
1240 inq_data_ptr = (struct inquiry_data *)scsicmd->request_buffer;
1241 memset(inq_data_ptr, 0, sizeof (struct inquiry_data));
1242
1243 inq_data_ptr->inqd_ver = 2; /* claim compliance to SCSI-2 */
1244 inq_data_ptr->inqd_dtq = 0x80; /* set RMB bit to one indicating that the medium is removable */
1245 inq_data_ptr->inqd_rdf = 2; /* A response data format value of two indicates that the data shall be in the format specified in SCSI-2 */
1246 inq_data_ptr->inqd_len = 31;
1247 /*Format for "pad2" is RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */
1248 inq_data_ptr->inqd_pad2= 0x32 ; /*WBus16|Sync|CmdQue */
1249 /*
1250 * Set the Vendor, Product, and Revision Level
1251 * see: <vendor>.c i.e. aac.c
1252 */
1253 if (scsicmd->device->id == host->this_id) {
1254 setinqstr(cardtype, (void *) (inq_data_ptr->inqd_vid), (sizeof(container_types)/sizeof(char *)));
1255 inq_data_ptr->inqd_pdt = INQD_PDT_PROC; /* Processor device */
1256 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1257 scsicmd->scsi_done(scsicmd);
1258 return 0;
1259 }
1260 setinqstr(cardtype, (void *) (inq_data_ptr->inqd_vid), fsa_dev_ptr[cid].type);
1261 inq_data_ptr->inqd_pdt = INQD_PDT_DA; /* Direct/random access device */
1262 return aac_get_container_name(scsicmd, cid);
1263 }
1264 case READ_CAPACITY:
1265 {
1266 u32 capacity;
1267 char *cp;
1268
1269 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
1270 if (fsa_dev_ptr[cid].size <= 0x100000000LL)
1271 capacity = fsa_dev_ptr[cid].size - 1;
1272 else
1273 capacity = (u32)-1;
1274 cp = scsicmd->request_buffer;
1275 cp[0] = (capacity >> 24) & 0xff;
1276 cp[1] = (capacity >> 16) & 0xff;
1277 cp[2] = (capacity >> 8) & 0xff;
1278 cp[3] = (capacity >> 0) & 0xff;
1279 cp[4] = 0;
1280 cp[5] = 0;
1281 cp[6] = 2;
1282 cp[7] = 0;
1283
1284 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1285 scsicmd->scsi_done(scsicmd);
1286
1287 return 0;
1288 }
1289
1290 case MODE_SENSE:
1291 {
1292 char *mode_buf;
1293
1294 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
1295 mode_buf = scsicmd->request_buffer;
1296 mode_buf[0] = 3; /* Mode data length */
1297 mode_buf[1] = 0; /* Medium type - default */
1298 mode_buf[2] = 0; /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1299 mode_buf[3] = 0; /* Block descriptor length */
1300
1301 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1302 scsicmd->scsi_done(scsicmd);
1303
1304 return 0;
1305 }
1306 case MODE_SENSE_10:
1307 {
1308 char *mode_buf;
1309
1310 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
1311 mode_buf = scsicmd->request_buffer;
1312 mode_buf[0] = 0; /* Mode data length (MSB) */
1313 mode_buf[1] = 6; /* Mode data length (LSB) */
1314 mode_buf[2] = 0; /* Medium type - default */
1315 mode_buf[3] = 0; /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1316 mode_buf[4] = 0; /* reserved */
1317 mode_buf[5] = 0; /* reserved */
1318 mode_buf[6] = 0; /* Block descriptor length (MSB) */
1319 mode_buf[7] = 0; /* Block descriptor length (LSB) */
1320
1321 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1322 scsicmd->scsi_done(scsicmd);
1323
1324 return 0;
1325 }
1326 case REQUEST_SENSE:
1327 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
1328 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
1329 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
1330 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1331 scsicmd->scsi_done(scsicmd);
1332 return 0;
1333
1334 case ALLOW_MEDIUM_REMOVAL:
1335 dprintk((KERN_DEBUG "LOCK command.\n"));
1336 if (scsicmd->cmnd[4])
1337 fsa_dev_ptr[cid].locked = 1;
1338 else
1339 fsa_dev_ptr[cid].locked = 0;
1340
1341 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1342 scsicmd->scsi_done(scsicmd);
1343 return 0;
1344 /*
1345 * These commands are all No-Ops
1346 */
1347 case TEST_UNIT_READY:
1348 case RESERVE:
1349 case RELEASE:
1350 case REZERO_UNIT:
1351 case REASSIGN_BLOCKS:
1352 case SEEK_10:
1353 case START_STOP:
1354 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1355 scsicmd->scsi_done(scsicmd);
1356 return 0;
1357 }
1358
1359 switch (scsicmd->cmnd[0])
1360 {
1361 case READ_6:
1362 case READ_10:
1363 /*
1364 * Hack to keep track of ordinal number of the device that
1365 * corresponds to a container. Needed to convert
1366 * containers to /dev/sd device names
1367 */
1368
1369 spin_unlock_irq(host->host_lock);
1370 if (scsicmd->request->rq_disk)
1371 memcpy(fsa_dev_ptr[cid].devname,
1372 scsicmd->request->rq_disk->disk_name,
1373 8);
1374
1375 ret = aac_read(scsicmd, cid);
1376 spin_lock_irq(host->host_lock);
1377 return ret;
1378
1379 case WRITE_6:
1380 case WRITE_10:
1381 spin_unlock_irq(host->host_lock);
1382 ret = aac_write(scsicmd, cid);
1383 spin_lock_irq(host->host_lock);
1384 return ret;
1385
1386 case SYNCHRONIZE_CACHE:
1387 /* Issue FIB to tell Firmware to flush it's cache */
1388 return aac_synchronize(scsicmd, cid);
1389
1390 default:
1391 /*
1392 * Unhandled commands
1393 */
1394 printk(KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]);
1395 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1396 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1397 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
1398 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1399 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1400 (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1401 ? sizeof(scsicmd->sense_buffer)
1402 : sizeof(dev->fsa_dev[cid].sense_data));
1403 scsicmd->scsi_done(scsicmd);
1404 return 0;
1405 }
1406 }
1407
1408 static int query_disk(struct aac_dev *dev, void __user *arg)
1409 {
1410 struct aac_query_disk qd;
1411 struct fsa_dev_info *fsa_dev_ptr;
1412
1413 fsa_dev_ptr = dev->fsa_dev;
1414 if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
1415 return -EFAULT;
1416 if (qd.cnum == -1)
1417 qd.cnum = ID_LUN_TO_CONTAINER(qd.id, qd.lun);
1418 else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
1419 {
1420 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
1421 return -EINVAL;
1422 qd.instance = dev->scsi_host_ptr->host_no;
1423 qd.bus = 0;
1424 qd.id = CONTAINER_TO_ID(qd.cnum);
1425 qd.lun = CONTAINER_TO_LUN(qd.cnum);
1426 }
1427 else return -EINVAL;
1428
1429 qd.valid = fsa_dev_ptr[qd.cnum].valid;
1430 qd.locked = fsa_dev_ptr[qd.cnum].locked;
1431 qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
1432
1433 if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
1434 qd.unmapped = 1;
1435 else
1436 qd.unmapped = 0;
1437
1438 strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
1439 min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
1440
1441 if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
1442 return -EFAULT;
1443 return 0;
1444 }
1445
1446 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
1447 {
1448 struct aac_delete_disk dd;
1449 struct fsa_dev_info *fsa_dev_ptr;
1450
1451 fsa_dev_ptr = dev->fsa_dev;
1452
1453 if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1454 return -EFAULT;
1455
1456 if (dd.cnum >= dev->maximum_num_containers)
1457 return -EINVAL;
1458 /*
1459 * Mark this container as being deleted.
1460 */
1461 fsa_dev_ptr[dd.cnum].deleted = 1;
1462 /*
1463 * Mark the container as no longer valid
1464 */
1465 fsa_dev_ptr[dd.cnum].valid = 0;
1466 return 0;
1467 }
1468
1469 static int delete_disk(struct aac_dev *dev, void __user *arg)
1470 {
1471 struct aac_delete_disk dd;
1472 struct fsa_dev_info *fsa_dev_ptr;
1473
1474 fsa_dev_ptr = dev->fsa_dev;
1475
1476 if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1477 return -EFAULT;
1478
1479 if (dd.cnum >= dev->maximum_num_containers)
1480 return -EINVAL;
1481 /*
1482 * If the container is locked, it can not be deleted by the API.
1483 */
1484 if (fsa_dev_ptr[dd.cnum].locked)
1485 return -EBUSY;
1486 else {
1487 /*
1488 * Mark the container as no longer being valid.
1489 */
1490 fsa_dev_ptr[dd.cnum].valid = 0;
1491 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
1492 return 0;
1493 }
1494 }
1495
1496 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
1497 {
1498 switch (cmd) {
1499 case FSACTL_QUERY_DISK:
1500 return query_disk(dev, arg);
1501 case FSACTL_DELETE_DISK:
1502 return delete_disk(dev, arg);
1503 case FSACTL_FORCE_DELETE_DISK:
1504 return force_delete_disk(dev, arg);
1505 case FSACTL_GET_CONTAINERS:
1506 return aac_get_containers(dev);
1507 default:
1508 return -ENOTTY;
1509 }
1510 }
1511
1512 /**
1513 *
1514 * aac_srb_callback
1515 * @context: the context set in the fib - here it is scsi cmd
1516 * @fibptr: pointer to the fib
1517 *
1518 * Handles the completion of a scsi command to a non dasd device
1519 *
1520 */
1521
1522 static void aac_srb_callback(void *context, struct fib * fibptr)
1523 {
1524 struct aac_dev *dev;
1525 struct aac_srb_reply *srbreply;
1526 struct scsi_cmnd *scsicmd;
1527
1528 scsicmd = (struct scsi_cmnd *) context;
1529 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1530
1531 if (fibptr == NULL)
1532 BUG();
1533
1534 srbreply = (struct aac_srb_reply *) fib_data(fibptr);
1535
1536 scsicmd->sense_buffer[0] = '\0'; /* Initialize sense valid flag to false */
1537 /*
1538 * Calculate resid for sg
1539 */
1540
1541 scsicmd->resid = scsicmd->request_bufflen - srbreply->data_xfer_length;
1542
1543 if(scsicmd->use_sg)
1544 pci_unmap_sg(dev->pdev,
1545 (struct scatterlist *)scsicmd->buffer,
1546 scsicmd->use_sg,
1547 scsicmd->sc_data_direction);
1548 else if(scsicmd->request_bufflen)
1549 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, scsicmd->request_bufflen,
1550 scsicmd->sc_data_direction);
1551
1552 /*
1553 * First check the fib status
1554 */
1555
1556 if (le32_to_cpu(srbreply->status) != ST_OK){
1557 int len;
1558 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
1559 len = (srbreply->sense_data_size > sizeof(scsicmd->sense_buffer))?
1560 sizeof(scsicmd->sense_buffer):srbreply->sense_data_size;
1561 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1562 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1563 }
1564
1565 /*
1566 * Next check the srb status
1567 */
1568 switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
1569 case SRB_STATUS_ERROR_RECOVERY:
1570 case SRB_STATUS_PENDING:
1571 case SRB_STATUS_SUCCESS:
1572 if(scsicmd->cmnd[0] == INQUIRY ){
1573 u8 b;
1574 u8 b1;
1575 /* We can't expose disk devices because we can't tell whether they
1576 * are the raw container drives or stand alone drives. If they have
1577 * the removable bit set then we should expose them though.
1578 */
1579 b = (*(u8*)scsicmd->buffer)&0x1f;
1580 b1 = ((u8*)scsicmd->buffer)[1];
1581 if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1582 || (b==TYPE_DISK && (b1&0x80)) ){
1583 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1584 /*
1585 * We will allow disk devices if in RAID/SCSI mode and
1586 * the channel is 2
1587 */
1588 } else if ((dev->raid_scsi_mode) &&
1589 (scsicmd->device->channel == 2)) {
1590 scsicmd->result = DID_OK << 16 |
1591 COMMAND_COMPLETE << 8;
1592 } else {
1593 scsicmd->result = DID_NO_CONNECT << 16 |
1594 COMMAND_COMPLETE << 8;
1595 }
1596 } else {
1597 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1598 }
1599 break;
1600 case SRB_STATUS_DATA_OVERRUN:
1601 switch(scsicmd->cmnd[0]){
1602 case READ_6:
1603 case WRITE_6:
1604 case READ_10:
1605 case WRITE_10:
1606 case READ_12:
1607 case WRITE_12:
1608 if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
1609 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
1610 } else {
1611 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
1612 }
1613 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1614 break;
1615 case INQUIRY: {
1616 u8 b;
1617 u8 b1;
1618 /* We can't expose disk devices because we can't tell whether they
1619 * are the raw container drives or stand alone drives
1620 */
1621 b = (*(u8*)scsicmd->buffer)&0x0f;
1622 b1 = ((u8*)scsicmd->buffer)[1];
1623 if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1624 || (b==TYPE_DISK && (b1&0x80)) ){
1625 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1626 /*
1627 * We will allow disk devices if in RAID/SCSI mode and
1628 * the channel is 2
1629 */
1630 } else if ((dev->raid_scsi_mode) &&
1631 (scsicmd->device->channel == 2)) {
1632 scsicmd->result = DID_OK << 16 |
1633 COMMAND_COMPLETE << 8;
1634 } else {
1635 scsicmd->result = DID_NO_CONNECT << 16 |
1636 COMMAND_COMPLETE << 8;
1637 }
1638 break;
1639 }
1640 default:
1641 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1642 break;
1643 }
1644 break;
1645 case SRB_STATUS_ABORTED:
1646 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
1647 break;
1648 case SRB_STATUS_ABORT_FAILED:
1649 // Not sure about this one - but assuming the hba was trying to abort for some reason
1650 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
1651 break;
1652 case SRB_STATUS_PARITY_ERROR:
1653 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
1654 break;
1655 case SRB_STATUS_NO_DEVICE:
1656 case SRB_STATUS_INVALID_PATH_ID:
1657 case SRB_STATUS_INVALID_TARGET_ID:
1658 case SRB_STATUS_INVALID_LUN:
1659 case SRB_STATUS_SELECTION_TIMEOUT:
1660 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1661 break;
1662
1663 case SRB_STATUS_COMMAND_TIMEOUT:
1664 case SRB_STATUS_TIMEOUT:
1665 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
1666 break;
1667
1668 case SRB_STATUS_BUSY:
1669 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1670 break;
1671
1672 case SRB_STATUS_BUS_RESET:
1673 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
1674 break;
1675
1676 case SRB_STATUS_MESSAGE_REJECTED:
1677 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
1678 break;
1679 case SRB_STATUS_REQUEST_FLUSHED:
1680 case SRB_STATUS_ERROR:
1681 case SRB_STATUS_INVALID_REQUEST:
1682 case SRB_STATUS_REQUEST_SENSE_FAILED:
1683 case SRB_STATUS_NO_HBA:
1684 case SRB_STATUS_UNEXPECTED_BUS_FREE:
1685 case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
1686 case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
1687 case SRB_STATUS_DELAYED_RETRY:
1688 case SRB_STATUS_BAD_FUNCTION:
1689 case SRB_STATUS_NOT_STARTED:
1690 case SRB_STATUS_NOT_IN_USE:
1691 case SRB_STATUS_FORCE_ABORT:
1692 case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
1693 default:
1694 #ifdef AAC_DETAILED_STATUS_INFO
1695 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
1696 le32_to_cpu(srbreply->srb_status & 0x3F),
1697 aac_get_status_string(
1698 le32_to_cpu(srbreply->srb_status) & 0x3F),
1699 scsicmd->cmnd[0],
1700 le32_to_cpu(srbreply->scsi_status));
1701 #endif
1702 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1703 break;
1704 }
1705 if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){ // Check Condition
1706 int len;
1707 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
1708 len = (srbreply->sense_data_size > sizeof(scsicmd->sense_buffer))?
1709 sizeof(scsicmd->sense_buffer):srbreply->sense_data_size;
1710 #ifdef AAC_DETAILED_STATUS_INFO
1711 dprintk((KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
1712 le32_to_cpu(srbreply->status), len));
1713 #endif
1714 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1715
1716 }
1717 /*
1718 * OR in the scsi status (already shifted up a bit)
1719 */
1720 scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
1721
1722 fib_complete(fibptr);
1723 fib_free(fibptr);
1724 aac_io_done(scsicmd);
1725 }
1726
1727 /**
1728 *
1729 * aac_send_scb_fib
1730 * @scsicmd: the scsi command block
1731 *
1732 * This routine will form a FIB and fill in the aac_srb from the
1733 * scsicmd passed in.
1734 */
1735
1736 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
1737 {
1738 struct fib* cmd_fibcontext;
1739 struct aac_dev* dev;
1740 int status;
1741 struct aac_srb *srbcmd;
1742 u16 fibsize;
1743 u32 flag;
1744 u32 timeout;
1745
1746 if( scsicmd->device->id > 15 || scsicmd->device->lun > 7) {
1747 scsicmd->result = DID_NO_CONNECT << 16;
1748 scsicmd->scsi_done(scsicmd);
1749 return 0;
1750 }
1751
1752 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1753 switch(scsicmd->sc_data_direction){
1754 case DMA_TO_DEVICE:
1755 flag = SRB_DataOut;
1756 break;
1757 case DMA_BIDIRECTIONAL:
1758 flag = SRB_DataIn | SRB_DataOut;
1759 break;
1760 case DMA_FROM_DEVICE:
1761 flag = SRB_DataIn;
1762 break;
1763 case DMA_NONE:
1764 default: /* shuts up some versions of gcc */
1765 flag = SRB_NoDataXfer;
1766 break;
1767 }
1768
1769
1770 /*
1771 * Allocate and initialize a Fib then setup a BlockWrite command
1772 */
1773 if (!(cmd_fibcontext = fib_alloc(dev))) {
1774 return -1;
1775 }
1776 fib_init(cmd_fibcontext);
1777
1778 srbcmd = (struct aac_srb*) fib_data(cmd_fibcontext);
1779 srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1780 srbcmd->channel = cpu_to_le32(aac_logical_to_phys(scsicmd->device->channel));
1781 srbcmd->id = cpu_to_le32(scsicmd->device->id);
1782 srbcmd->lun = cpu_to_le32(scsicmd->device->lun);
1783 srbcmd->flags = cpu_to_le32(flag);
1784 timeout = (scsicmd->timeout-jiffies)/HZ;
1785 if(timeout == 0){
1786 timeout = 1;
1787 }
1788 srbcmd->timeout = cpu_to_le32(timeout); // timeout in seconds
1789 srbcmd->retry_limit =cpu_to_le32(0); // Obsolete parameter
1790 srbcmd->cdb_size = cpu_to_le32(scsicmd->cmd_len);
1791
1792 if( dev->dac_support == 1 ) {
1793 aac_build_sg64(scsicmd, (struct sgmap64*) &srbcmd->sg);
1794 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1795
1796 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1797 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1798 /*
1799 * Build Scatter/Gather list
1800 */
1801 fibsize = sizeof (struct aac_srb) + (((srbcmd->sg.count & 0xff) - 1) * sizeof (struct sgentry64));
1802
1803 /*
1804 * Now send the Fib to the adapter
1805 */
1806 status = fib_send(ScsiPortCommand64, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
1807 (fib_callback) aac_srb_callback, (void *) scsicmd);
1808 } else {
1809 aac_build_sg(scsicmd, (struct sgmap*)&srbcmd->sg);
1810 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1811
1812 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1813 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1814 /*
1815 * Build Scatter/Gather list
1816 */
1817 fibsize = sizeof (struct aac_srb) + (((srbcmd->sg.count & 0xff) - 1) * sizeof (struct sgentry));
1818
1819 /*
1820 * Now send the Fib to the adapter
1821 */
1822 status = fib_send(ScsiPortCommand, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
1823 (fib_callback) aac_srb_callback, (void *) scsicmd);
1824 }
1825 /*
1826 * Check that the command queued to the controller
1827 */
1828 if (status == -EINPROGRESS){
1829 return 0;
1830 }
1831
1832 printk(KERN_WARNING "aac_srb: fib_send failed with status: %d\n", status);
1833 fib_complete(cmd_fibcontext);
1834 fib_free(cmd_fibcontext);
1835
1836 return -1;
1837 }
1838
1839 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
1840 {
1841 struct aac_dev *dev;
1842 unsigned long byte_count = 0;
1843
1844 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1845 // Get rid of old data
1846 psg->count = cpu_to_le32(0);
1847 psg->sg[0].addr = cpu_to_le32(0);
1848 psg->sg[0].count = cpu_to_le32(0);
1849 if (scsicmd->use_sg) {
1850 struct scatterlist *sg;
1851 int i;
1852 int sg_count;
1853 sg = (struct scatterlist *) scsicmd->request_buffer;
1854
1855 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
1856 scsicmd->sc_data_direction);
1857 psg->count = cpu_to_le32(sg_count);
1858
1859 byte_count = 0;
1860
1861 for (i = 0; i < sg_count; i++) {
1862 psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
1863 psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
1864 byte_count += sg_dma_len(sg);
1865 sg++;
1866 }
1867 /* hba wants the size to be exact */
1868 if(byte_count > scsicmd->request_bufflen){
1869 psg->sg[i-1].count -= (byte_count - scsicmd->request_bufflen);
1870 byte_count = scsicmd->request_bufflen;
1871 }
1872 /* Check for command underflow */
1873 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
1874 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
1875 byte_count, scsicmd->underflow);
1876 }
1877 }
1878 else if(scsicmd->request_bufflen) {
1879 dma_addr_t addr;
1880 addr = pci_map_single(dev->pdev,
1881 scsicmd->request_buffer,
1882 scsicmd->request_bufflen,
1883 scsicmd->sc_data_direction);
1884 psg->count = cpu_to_le32(1);
1885 psg->sg[0].addr = cpu_to_le32(addr);
1886 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
1887 scsicmd->SCp.dma_handle = addr;
1888 byte_count = scsicmd->request_bufflen;
1889 }
1890 return byte_count;
1891 }
1892
1893
1894 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
1895 {
1896 struct aac_dev *dev;
1897 unsigned long byte_count = 0;
1898 u64 le_addr;
1899
1900 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1901 // Get rid of old data
1902 psg->count = cpu_to_le32(0);
1903 psg->sg[0].addr[0] = cpu_to_le32(0);
1904 psg->sg[0].addr[1] = cpu_to_le32(0);
1905 psg->sg[0].count = cpu_to_le32(0);
1906 if (scsicmd->use_sg) {
1907 struct scatterlist *sg;
1908 int i;
1909 int sg_count;
1910 sg = (struct scatterlist *) scsicmd->request_buffer;
1911
1912 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
1913 scsicmd->sc_data_direction);
1914 psg->count = cpu_to_le32(sg_count);
1915
1916 byte_count = 0;
1917
1918 for (i = 0; i < sg_count; i++) {
1919 le_addr = cpu_to_le64(sg_dma_address(sg));
1920 psg->sg[i].addr[1] = (u32)(le_addr>>32);
1921 psg->sg[i].addr[0] = (u32)(le_addr & 0xffffffff);
1922 psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
1923 byte_count += sg_dma_len(sg);
1924 sg++;
1925 }
1926 /* hba wants the size to be exact */
1927 if(byte_count > scsicmd->request_bufflen){
1928 psg->sg[i-1].count -= (byte_count - scsicmd->request_bufflen);
1929 byte_count = scsicmd->request_bufflen;
1930 }
1931 /* Check for command underflow */
1932 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
1933 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
1934 byte_count, scsicmd->underflow);
1935 }
1936 }
1937 else if(scsicmd->request_bufflen) {
1938 dma_addr_t addr;
1939 addr = pci_map_single(dev->pdev,
1940 scsicmd->request_buffer,
1941 scsicmd->request_bufflen,
1942 scsicmd->sc_data_direction);
1943 psg->count = cpu_to_le32(1);
1944 le_addr = cpu_to_le64(addr);
1945 psg->sg[0].addr[1] = (u32)(le_addr>>32);
1946 psg->sg[0].addr[0] = (u32)(le_addr & 0xffffffff);
1947 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
1948 scsicmd->SCp.dma_handle = addr;
1949 byte_count = scsicmd->request_bufflen;
1950 }
1951 return byte_count;
1952 }
1953
1954 #ifdef AAC_DETAILED_STATUS_INFO
1955
1956 struct aac_srb_status_info {
1957 u32 status;
1958 char *str;
1959 };
1960
1961
1962 static struct aac_srb_status_info srb_status_info[] = {
1963 { SRB_STATUS_PENDING, "Pending Status"},
1964 { SRB_STATUS_SUCCESS, "Success"},
1965 { SRB_STATUS_ABORTED, "Aborted Command"},
1966 { SRB_STATUS_ABORT_FAILED, "Abort Failed"},
1967 { SRB_STATUS_ERROR, "Error Event"},
1968 { SRB_STATUS_BUSY, "Device Busy"},
1969 { SRB_STATUS_INVALID_REQUEST, "Invalid Request"},
1970 { SRB_STATUS_INVALID_PATH_ID, "Invalid Path ID"},
1971 { SRB_STATUS_NO_DEVICE, "No Device"},
1972 { SRB_STATUS_TIMEOUT, "Timeout"},
1973 { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
1974 { SRB_STATUS_COMMAND_TIMEOUT, "Command Timeout"},
1975 { SRB_STATUS_MESSAGE_REJECTED, "Message Rejected"},
1976 { SRB_STATUS_BUS_RESET, "Bus Reset"},
1977 { SRB_STATUS_PARITY_ERROR, "Parity Error"},
1978 { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
1979 { SRB_STATUS_NO_HBA, "No HBA"},
1980 { SRB_STATUS_DATA_OVERRUN, "Data Overrun/Data Underrun"},
1981 { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
1982 { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
1983 { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
1984 { SRB_STATUS_REQUEST_FLUSHED, "Request Flushed"},
1985 { SRB_STATUS_DELAYED_RETRY, "Delayed Retry"},
1986 { SRB_STATUS_INVALID_LUN, "Invalid LUN"},
1987 { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
1988 { SRB_STATUS_BAD_FUNCTION, "Bad Function"},
1989 { SRB_STATUS_ERROR_RECOVERY, "Error Recovery"},
1990 { SRB_STATUS_NOT_STARTED, "Not Started"},
1991 { SRB_STATUS_NOT_IN_USE, "Not In Use"},
1992 { SRB_STATUS_FORCE_ABORT, "Force Abort"},
1993 { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
1994 { 0xff, "Unknown Error"}
1995 };
1996
1997 char *aac_get_status_string(u32 status)
1998 {
1999 int i;
2000
2001 for(i=0; i < (sizeof(srb_status_info)/sizeof(struct aac_srb_status_info)); i++ ){
2002 if(srb_status_info[i].status == status){
2003 return srb_status_info[i].str;
2004 }
2005 }
2006
2007 return "Bad Status Code";
2008 }
2009
2010 #endif
2011
|
This page was automatically generated by the
LXR engine.
|