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[PATCH] W1: w1_netlink: New init/fini netlink callbacks.
[linux-2.6/verdex.git] / drivers / scsi / aacraid / aachba.c
bloba8e3dfcd0dc758025a388a201f8eaddae5d23d58
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 /*
57 * Sense codes
58 */
59
60 #define SENCODE_NO_SENSE 0x00
61 #define SENCODE_END_OF_DATA 0x00
62 #define SENCODE_BECOMING_READY 0x04
63 #define SENCODE_INIT_CMD_REQUIRED 0x04
64 #define SENCODE_PARAM_LIST_LENGTH_ERROR 0x1A
65 #define SENCODE_INVALID_COMMAND 0x20
66 #define SENCODE_LBA_OUT_OF_RANGE 0x21
67 #define SENCODE_INVALID_CDB_FIELD 0x24
68 #define SENCODE_LUN_NOT_SUPPORTED 0x25
69 #define SENCODE_INVALID_PARAM_FIELD 0x26
70 #define SENCODE_PARAM_NOT_SUPPORTED 0x26
71 #define SENCODE_PARAM_VALUE_INVALID 0x26
72 #define SENCODE_RESET_OCCURRED 0x29
73 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x3E
74 #define SENCODE_INQUIRY_DATA_CHANGED 0x3F
75 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x39
76 #define SENCODE_DIAGNOSTIC_FAILURE 0x40
77 #define SENCODE_INTERNAL_TARGET_FAILURE 0x44
78 #define SENCODE_INVALID_MESSAGE_ERROR 0x49
79 #define SENCODE_LUN_FAILED_SELF_CONFIG 0x4c
80 #define SENCODE_OVERLAPPED_COMMAND 0x4E
81
82 /*
83 * Additional sense codes
84 */
85
86 #define ASENCODE_NO_SENSE 0x00
87 #define ASENCODE_END_OF_DATA 0x05
88 #define ASENCODE_BECOMING_READY 0x01
89 #define ASENCODE_INIT_CMD_REQUIRED 0x02
90 #define ASENCODE_PARAM_LIST_LENGTH_ERROR 0x00
91 #define ASENCODE_INVALID_COMMAND 0x00
92 #define ASENCODE_LBA_OUT_OF_RANGE 0x00
93 #define ASENCODE_INVALID_CDB_FIELD 0x00
94 #define ASENCODE_LUN_NOT_SUPPORTED 0x00
95 #define ASENCODE_INVALID_PARAM_FIELD 0x00
96 #define ASENCODE_PARAM_NOT_SUPPORTED 0x01
97 #define ASENCODE_PARAM_VALUE_INVALID 0x02
98 #define ASENCODE_RESET_OCCURRED 0x00
99 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x00
100 #define ASENCODE_INQUIRY_DATA_CHANGED 0x03
101 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x00
102 #define ASENCODE_DIAGNOSTIC_FAILURE 0x80
103 #define ASENCODE_INTERNAL_TARGET_FAILURE 0x00
104 #define ASENCODE_INVALID_MESSAGE_ERROR 0x00
105 #define ASENCODE_LUN_FAILED_SELF_CONFIG 0x00
106 #define ASENCODE_OVERLAPPED_COMMAND 0x00
107
108 #define BYTE0(x) (unsigned char)(x)
109 #define BYTE1(x) (unsigned char)((x) >> 8)
110 #define BYTE2(x) (unsigned char)((x) >> 16)
111 #define BYTE3(x) (unsigned char)((x) >> 24)
112
113 /*------------------------------------------------------------------------------
114 * S T R U C T S / T Y P E D E F S
115 *----------------------------------------------------------------------------*/
116 /* SCSI inquiry data */
117 struct inquiry_data {
118 u8 inqd_pdt; /* Peripheral qualifier | Peripheral Device Type */
119 u8 inqd_dtq; /* RMB | Device Type Qualifier */
120 u8 inqd_ver; /* ISO version | ECMA version | ANSI-approved version */
121 u8 inqd_rdf; /* AENC | TrmIOP | Response data format */
122 u8 inqd_len; /* Additional length (n-4) */
123 u8 inqd_pad1[2];/* Reserved - must be zero */
124 u8 inqd_pad2; /* RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */
125 u8 inqd_vid[8]; /* Vendor ID */
126 u8 inqd_pid[16];/* Product ID */
127 u8 inqd_prl[4]; /* Product Revision Level */
128 };
129
130 /*
131 * M O D U L E G L O B A L S
132 */
133
134 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
135 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
136 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
137 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
138 #ifdef AAC_DETAILED_STATUS_INFO
139 static char *aac_get_status_string(u32 status);
140 #endif
141
142 /*
143 * Non dasd selection is handled entirely in aachba now
144 */
145
146 static int nondasd = -1;
147 static int dacmode = -1;
148
149 static int commit = -1;
150
151 module_param(nondasd, int, 0);
152 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
153 module_param(dacmode, int, 0);
154 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
155 module_param(commit, int, 0);
156 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");
157
158 int numacb = -1;
159 module_param(numacb, int, S_IRUGO|S_IWUSR);
160 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control blocks (FIB) allocated. Valid\nvalues are 512 and down. Default is to use suggestion from Firmware.");
161
162 int acbsize = -1;
163 module_param(acbsize, int, S_IRUGO|S_IWUSR);
164 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB) size. Valid values are 512,\n2048, 4096 and 8192. Default is to use suggestion from Firmware.");
165 /**
166 * aac_get_config_status - check the adapter configuration
167 * @common: adapter to query
168 *
169 * Query config status, and commit the configuration if needed.
170 */
171 int aac_get_config_status(struct aac_dev *dev)
172 {
173 int status = 0;
174 struct fib * fibptr;
175
176 if (!(fibptr = fib_alloc(dev)))
177 return -ENOMEM;
178
179 fib_init(fibptr);
180 {
181 struct aac_get_config_status *dinfo;
182 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
183
184 dinfo->command = cpu_to_le32(VM_ContainerConfig);
185 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
186 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
187 }
188
189 status = fib_send(ContainerCommand,
190 fibptr,
191 sizeof (struct aac_get_config_status),
192 FsaNormal,
193 1, 1,
194 NULL, NULL);
195 if (status < 0 ) {
196 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
197 } else {
198 struct aac_get_config_status_resp *reply
199 = (struct aac_get_config_status_resp *) fib_data(fibptr);
200 dprintk((KERN_WARNING
201 "aac_get_config_status: response=%d status=%d action=%d\n",
202 le32_to_cpu(reply->response),
203 le32_to_cpu(reply->status),
204 le32_to_cpu(reply->data.action)));
205 if ((le32_to_cpu(reply->response) != ST_OK) ||
206 (le32_to_cpu(reply->status) != CT_OK) ||
207 (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
208 printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
209 status = -EINVAL;
210 }
211 }
212 fib_complete(fibptr);
213 /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
214 if (status >= 0) {
215 if (commit == 1) {
216 struct aac_commit_config * dinfo;
217 fib_init(fibptr);
218 dinfo = (struct aac_commit_config *) fib_data(fibptr);
219
220 dinfo->command = cpu_to_le32(VM_ContainerConfig);
221 dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
222
223 status = fib_send(ContainerCommand,
224 fibptr,
225 sizeof (struct aac_commit_config),
226 FsaNormal,
227 1, 1,
228 NULL, NULL);
229 fib_complete(fibptr);
230 } else if (commit == 0) {
231 printk(KERN_WARNING
232 "aac_get_config_status: Foreign device configurations are being ignored\n");
233 }
234 }
235 fib_free(fibptr);
236 return status;
237 }
238
239 /**
240 * aac_get_containers - list containers
241 * @common: adapter to probe
242 *
243 * Make a list of all containers on this controller
244 */
245 int aac_get_containers(struct aac_dev *dev)
246 {
247 struct fsa_dev_info *fsa_dev_ptr;
248 u32 index;
249 int status = 0;
250 struct fib * fibptr;
251 unsigned instance;
252 struct aac_get_container_count *dinfo;
253 struct aac_get_container_count_resp *dresp;
254 int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
255
256 instance = dev->scsi_host_ptr->unique_id;
257
258 if (!(fibptr = fib_alloc(dev)))
259 return -ENOMEM;
260
261 fib_init(fibptr);
262 dinfo = (struct aac_get_container_count *) fib_data(fibptr);
263 dinfo->command = cpu_to_le32(VM_ContainerConfig);
264 dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
265
266 status = fib_send(ContainerCommand,
267 fibptr,
268 sizeof (struct aac_get_container_count),
269 FsaNormal,
270 1, 1,
271 NULL, NULL);
272 if (status >= 0) {
273 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
274 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
275 fib_complete(fibptr);
276 }
277
278 if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
279 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
280 fsa_dev_ptr = (struct fsa_dev_info *) kmalloc(
281 sizeof(*fsa_dev_ptr) * maximum_num_containers, GFP_KERNEL);
282 if (!fsa_dev_ptr) {
283 fib_free(fibptr);
284 return -ENOMEM;
285 }
286 memset(fsa_dev_ptr, 0, sizeof(*fsa_dev_ptr) * maximum_num_containers);
287
288 dev->fsa_dev = fsa_dev_ptr;
289 dev->maximum_num_containers = maximum_num_containers;
290
291 for (index = 0; index < dev->maximum_num_containers; index++) {
292 struct aac_query_mount *dinfo;
293 struct aac_mount *dresp;
294
295 fsa_dev_ptr[index].devname[0] = '\0';
296
297 fib_init(fibptr);
298 dinfo = (struct aac_query_mount *) fib_data(fibptr);
299
300 dinfo->command = cpu_to_le32(VM_NameServe);
301 dinfo->count = cpu_to_le32(index);
302 dinfo->type = cpu_to_le32(FT_FILESYS);
303
304 status = fib_send(ContainerCommand,
305 fibptr,
306 sizeof (struct aac_query_mount),
307 FsaNormal,
308 1, 1,
309 NULL, NULL);
310 if (status < 0 ) {
311 printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
312 break;
313 }
314 dresp = (struct aac_mount *)fib_data(fibptr);
315
316 dprintk ((KERN_DEBUG
317 "VM_NameServe cid=%d status=%d vol=%d state=%d cap=%u\n",
318 (int)index, (int)le32_to_cpu(dresp->status),
319 (int)le32_to_cpu(dresp->mnt[0].vol),
320 (int)le32_to_cpu(dresp->mnt[0].state),
321 (unsigned)le32_to_cpu(dresp->mnt[0].capacity)));
322 if ((le32_to_cpu(dresp->status) == ST_OK) &&
323 (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
324 (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
325 fsa_dev_ptr[index].valid = 1;
326 fsa_dev_ptr[index].type = le32_to_cpu(dresp->mnt[0].vol);
327 fsa_dev_ptr[index].size = le32_to_cpu(dresp->mnt[0].capacity);
328 if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
329 fsa_dev_ptr[index].ro = 1;
330 }
331 fib_complete(fibptr);
332 /*
333 * If there are no more containers, then stop asking.
334 */
335 if ((index + 1) >= le32_to_cpu(dresp->count)){
336 break;
337 }
338 }
339 fib_free(fibptr);
340 return status;
341 }
342
343 static void aac_io_done(struct scsi_cmnd * scsicmd)
344 {
345 unsigned long cpu_flags;
346 struct Scsi_Host *host = scsicmd->device->host;
347 spin_lock_irqsave(host->host_lock, cpu_flags);
348 scsicmd->scsi_done(scsicmd);
349 spin_unlock_irqrestore(host->host_lock, cpu_flags);
350 }
351
352 static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigned int offset, unsigned int len)
353 {
354 void *buf;
355 unsigned int transfer_len;
356 struct scatterlist *sg = scsicmd->request_buffer;
357
358 if (scsicmd->use_sg) {
359 buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
360 transfer_len = min(sg->length, len + offset);
361 } else {
362 buf = scsicmd->request_buffer;
363 transfer_len = min(scsicmd->request_bufflen, len + offset);
364 }
365
366 memcpy(buf + offset, data, transfer_len - offset);
367
368 if (scsicmd->use_sg)
369 kunmap_atomic(buf - sg->offset, KM_IRQ0);
370
371 }
372
373 static void get_container_name_callback(void *context, struct fib * fibptr)
374 {
375 struct aac_get_name_resp * get_name_reply;
376 struct scsi_cmnd * scsicmd;
377
378 scsicmd = (struct scsi_cmnd *) context;
379
380 dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
381 if (fibptr == NULL)
382 BUG();
383
384 get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
385 /* Failure is irrelevant, using default value instead */
386 if ((le32_to_cpu(get_name_reply->status) == CT_OK)
387 && (get_name_reply->data[0] != '\0')) {
388 char *sp = get_name_reply->data;
389 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
390 while (*sp == ' ')
391 ++sp;
392 if (*sp) {
393 char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
394 int count = sizeof(d);
395 char *dp = d;
396 do {
397 *dp++ = (*sp) ? *sp++ : ' ';
398 } while (--count > 0);
399 aac_internal_transfer(scsicmd, d,
400 offsetof(struct inquiry_data, inqd_pid), sizeof(d));
401 }
402 }
403
404 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
405
406 fib_complete(fibptr);
407 fib_free(fibptr);
408 aac_io_done(scsicmd);
409 }
410
411 /**
412 * aac_get_container_name - get container name, none blocking.
413 */
414 static int aac_get_container_name(struct scsi_cmnd * scsicmd, int cid)
415 {
416 int status;
417 struct aac_get_name *dinfo;
418 struct fib * cmd_fibcontext;
419 struct aac_dev * dev;
420
421 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
422
423 if (!(cmd_fibcontext = fib_alloc(dev)))
424 return -ENOMEM;
425
426 fib_init(cmd_fibcontext);
427 dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
428
429 dinfo->command = cpu_to_le32(VM_ContainerConfig);
430 dinfo->type = cpu_to_le32(CT_READ_NAME);
431 dinfo->cid = cpu_to_le32(cid);
432 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
433
434 status = fib_send(ContainerCommand,
435 cmd_fibcontext,
436 sizeof (struct aac_get_name),
437 FsaNormal,
438 0, 1,
439 (fib_callback) get_container_name_callback,
440 (void *) scsicmd);
441
442 /*
443 * Check that the command queued to the controller
444 */
445 if (status == -EINPROGRESS)
446 return 0;
447
448 printk(KERN_WARNING "aac_get_container_name: fib_send failed with status: %d.\n", status);
449 fib_complete(cmd_fibcontext);
450 fib_free(cmd_fibcontext);
451 return -1;
452 }
453
454 /**
455 * probe_container - query a logical volume
456 * @dev: device to query
457 * @cid: container identifier
458 *
459 * Queries the controller about the given volume. The volume information
460 * is updated in the struct fsa_dev_info structure rather than returned.
461 */
462
463 static int probe_container(struct aac_dev *dev, int cid)
464 {
465 struct fsa_dev_info *fsa_dev_ptr;
466 int status;
467 struct aac_query_mount *dinfo;
468 struct aac_mount *dresp;
469 struct fib * fibptr;
470 unsigned instance;
471
472 fsa_dev_ptr = dev->fsa_dev;
473 instance = dev->scsi_host_ptr->unique_id;
474
475 if (!(fibptr = fib_alloc(dev)))
476 return -ENOMEM;
477
478 fib_init(fibptr);
479
480 dinfo = (struct aac_query_mount *)fib_data(fibptr);
481
482 dinfo->command = cpu_to_le32(VM_NameServe);
483 dinfo->count = cpu_to_le32(cid);
484 dinfo->type = cpu_to_le32(FT_FILESYS);
485
486 status = fib_send(ContainerCommand,
487 fibptr,
488 sizeof(struct aac_query_mount),
489 FsaNormal,
490 1, 1,
491 NULL, NULL);
492 if (status < 0) {
493 printk(KERN_WARNING "aacraid: probe_container query failed.\n");
494 goto error;
495 }
496
497 dresp = (struct aac_mount *) fib_data(fibptr);
498
499 if ((le32_to_cpu(dresp->status) == ST_OK) &&
500 (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
501 (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
502 fsa_dev_ptr[cid].valid = 1;
503 fsa_dev_ptr[cid].type = le32_to_cpu(dresp->mnt[0].vol);
504 fsa_dev_ptr[cid].size = le32_to_cpu(dresp->mnt[0].capacity);
505 if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
506 fsa_dev_ptr[cid].ro = 1;
507 }
508
509 error:
510 fib_complete(fibptr);
511 fib_free(fibptr);
512
513 return status;
514 }
515
516 /* Local Structure to set SCSI inquiry data strings */
517 struct scsi_inq {
518 char vid[8]; /* Vendor ID */
519 char pid[16]; /* Product ID */
520 char prl[4]; /* Product Revision Level */
521 };
522
523 /**
524 * InqStrCopy - string merge
525 * @a: string to copy from
526 * @b: string to copy to
527 *
528 * Copy a String from one location to another
529 * without copying \0
530 */
531
532 static void inqstrcpy(char *a, char *b)
533 {
534
535 while(*a != (char)0)
536 *b++ = *a++;
537 }
538
539 static char *container_types[] = {
540 "None",
541 "Volume",
542 "Mirror",
543 "Stripe",
544 "RAID5",
545 "SSRW",
546 "SSRO",
547 "Morph",
548 "Legacy",
549 "RAID4",
550 "RAID10",
551 "RAID00",
552 "V-MIRRORS",
553 "PSEUDO R4",
554 "RAID50",
555 "RAID5D",
556 "RAID5D0",
557 "RAID1E",
558 "RAID6",
559 "RAID60",
560 "Unknown"
561 };
562
563
564
565 /* Function: setinqstr
566 *
567 * Arguments: [1] pointer to void [1] int
568 *
569 * Purpose: Sets SCSI inquiry data strings for vendor, product
570 * and revision level. Allows strings to be set in platform dependant
571 * files instead of in OS dependant driver source.
572 */
573
574 static void setinqstr(int devtype, void *data, int tindex)
575 {
576 struct scsi_inq *str;
577 struct aac_driver_ident *mp;
578
579 mp = aac_get_driver_ident(devtype);
580
581 str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
582
583 inqstrcpy (mp->vname, str->vid);
584 inqstrcpy (mp->model, str->pid); /* last six chars reserved for vol type */
585
586 if (tindex < (sizeof(container_types)/sizeof(char *))){
587 char *findit = str->pid;
588
589 for ( ; *findit != ' '; findit++); /* walk till we find a space */
590 /* RAID is superfluous in the context of a RAID device */
591 if (memcmp(findit-4, "RAID", 4) == 0)
592 *(findit -= 4) = ' ';
593 inqstrcpy (container_types[tindex], findit + 1);
594 }
595 inqstrcpy ("V1.0", str->prl);
596 }
597
598 static void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
599 u8 a_sense_code, u8 incorrect_length,
600 u8 bit_pointer, u16 field_pointer,
601 u32 residue)
602 {
603 sense_buf[0] = 0xF0; /* Sense data valid, err code 70h (current error) */
604 sense_buf[1] = 0; /* Segment number, always zero */
605
606 if (incorrect_length) {
607 sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
608 sense_buf[3] = BYTE3(residue);
609 sense_buf[4] = BYTE2(residue);
610 sense_buf[5] = BYTE1(residue);
611 sense_buf[6] = BYTE0(residue);
612 } else
613 sense_buf[2] = sense_key; /* Sense key */
614
615 if (sense_key == ILLEGAL_REQUEST)
616 sense_buf[7] = 10; /* Additional sense length */
617 else
618 sense_buf[7] = 6; /* Additional sense length */
619
620 sense_buf[12] = sense_code; /* Additional sense code */
621 sense_buf[13] = a_sense_code; /* Additional sense code qualifier */
622 if (sense_key == ILLEGAL_REQUEST) {
623 sense_buf[15] = 0;
624
625 if (sense_code == SENCODE_INVALID_PARAM_FIELD)
626 sense_buf[15] = 0x80;/* Std sense key specific field */
627 /* Illegal parameter is in the parameter block */
628
629 if (sense_code == SENCODE_INVALID_CDB_FIELD)
630 sense_buf[15] = 0xc0;/* Std sense key specific field */
631 /* Illegal parameter is in the CDB block */
632 sense_buf[15] |= bit_pointer;
633 sense_buf[16] = field_pointer >> 8; /* MSB */
634 sense_buf[17] = field_pointer; /* LSB */
635 }
636 }
637
638 int aac_get_adapter_info(struct aac_dev* dev)
639 {
640 struct fib* fibptr;
641 int rcode;
642 u32 tmp;
643 struct aac_adapter_info *info;
644 struct aac_bus_info *command;
645 struct aac_bus_info_response *bus_info;
646
647 if (!(fibptr = fib_alloc(dev)))
648 return -ENOMEM;
649
650 fib_init(fibptr);
651 info = (struct aac_adapter_info *) fib_data(fibptr);
652 memset(info,0,sizeof(*info));
653
654 rcode = fib_send(RequestAdapterInfo,
655 fibptr,
656 sizeof(*info),
657 FsaNormal,
658 1, 1,
659 NULL,
660 NULL);
661
662 if (rcode < 0) {
663 fib_complete(fibptr);
664 fib_free(fibptr);
665 return rcode;
666 }
667 memcpy(&dev->adapter_info, info, sizeof(*info));
668
669 if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
670 struct aac_supplement_adapter_info * info;
671
672 fib_init(fibptr);
673
674 info = (struct aac_supplement_adapter_info *) fib_data(fibptr);
675
676 memset(info,0,sizeof(*info));
677
678 rcode = fib_send(RequestSupplementAdapterInfo,
679 fibptr,
680 sizeof(*info),
681 FsaNormal,
682 1, 1,
683 NULL,
684 NULL);
685
686 if (rcode >= 0)
687 memcpy(&dev->supplement_adapter_info, info, sizeof(*info));
688 }
689
690
691 /*
692 * GetBusInfo
693 */
694
695 fib_init(fibptr);
696
697 bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
698
699 memset(bus_info, 0, sizeof(*bus_info));
700
701 command = (struct aac_bus_info *)bus_info;
702
703 command->Command = cpu_to_le32(VM_Ioctl);
704 command->ObjType = cpu_to_le32(FT_DRIVE);
705 command->MethodId = cpu_to_le32(1);
706 command->CtlCmd = cpu_to_le32(GetBusInfo);
707
708 rcode = fib_send(ContainerCommand,
709 fibptr,
710 sizeof (*bus_info),
711 FsaNormal,
712 1, 1,
713 NULL, NULL);
714
715 if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
716 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
717 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
718 }
719
720 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
721 printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
722 dev->name,
723 dev->id,
724 tmp>>24,
725 (tmp>>16)&0xff,
726 tmp&0xff,
727 le32_to_cpu(dev->adapter_info.kernelbuild),
728 (int)sizeof(dev->supplement_adapter_info.BuildDate),
729 dev->supplement_adapter_info.BuildDate);
730 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
731 printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
732 dev->name, dev->id,
733 tmp>>24,(tmp>>16)&0xff,tmp&0xff,
734 le32_to_cpu(dev->adapter_info.monitorbuild));
735 tmp = le32_to_cpu(dev->adapter_info.biosrev);
736 printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
737 dev->name, dev->id,
738 tmp>>24,(tmp>>16)&0xff,tmp&0xff,
739 le32_to_cpu(dev->adapter_info.biosbuild));
740 if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
741 printk(KERN_INFO "%s%d: serial %x\n",
742 dev->name, dev->id,
743 le32_to_cpu(dev->adapter_info.serial[0]));
744
745 dev->nondasd_support = 0;
746 dev->raid_scsi_mode = 0;
747 if(dev->adapter_info.options & AAC_OPT_NONDASD){
748 dev->nondasd_support = 1;
749 }
750
751 /*
752 * If the firmware supports ROMB RAID/SCSI mode and we are currently
753 * in RAID/SCSI mode, set the flag. For now if in this mode we will
754 * force nondasd support on. If we decide to allow the non-dasd flag
755 * additional changes changes will have to be made to support
756 * RAID/SCSI. the function aac_scsi_cmd in this module will have to be
757 * changed to support the new dev->raid_scsi_mode flag instead of
758 * leaching off of the dev->nondasd_support flag. Also in linit.c the
759 * function aac_detect will have to be modified where it sets up the
760 * max number of channels based on the aac->nondasd_support flag only.
761 */
762 if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
763 (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
764 dev->nondasd_support = 1;
765 dev->raid_scsi_mode = 1;
766 }
767 if (dev->raid_scsi_mode != 0)
768 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
769 dev->name, dev->id);
770
771 if(nondasd != -1) {
772 dev->nondasd_support = (nondasd!=0);
773 }
774 if(dev->nondasd_support != 0){
775 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
776 }
777
778 dev->dac_support = 0;
779 if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
780 printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id);
781 dev->dac_support = 1;
782 }
783
784 if(dacmode != -1) {
785 dev->dac_support = (dacmode!=0);
786 }
787 if(dev->dac_support != 0) {
788 if (!pci_set_dma_mask(dev->pdev, 0xFFFFFFFFFFFFFFFFULL) &&
789 !pci_set_consistent_dma_mask(dev->pdev, 0xFFFFFFFFFFFFFFFFULL)) {
790 printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
791 dev->name, dev->id);
792 } else if (!pci_set_dma_mask(dev->pdev, 0xFFFFFFFFULL) &&
793 !pci_set_consistent_dma_mask(dev->pdev, 0xFFFFFFFFULL)) {
794 printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
795 dev->name, dev->id);
796 dev->dac_support = 0;
797 } else {
798 printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
799 dev->name, dev->id);
800 rcode = -ENOMEM;
801 }
802 }
803 /*
804 * 57 scatter gather elements
805 */
806 if (!(dev->raw_io_interface)) {
807 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
808 sizeof(struct aac_fibhdr) -
809 sizeof(struct aac_write) + sizeof(struct sgmap)) /
810 sizeof(struct sgmap);
811 if (dev->dac_support) {
812 /*
813 * 38 scatter gather elements
814 */
815 dev->scsi_host_ptr->sg_tablesize =
816 (dev->max_fib_size -
817 sizeof(struct aac_fibhdr) -
818 sizeof(struct aac_write64) +
819 sizeof(struct sgmap64)) /
820 sizeof(struct sgmap64);
821 }
822 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
823 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
824 /*
825 * Worst case size that could cause sg overflow when
826 * we break up SG elements that are larger than 64KB.
827 * Would be nice if we could tell the SCSI layer what
828 * the maximum SG element size can be. Worst case is
829 * (sg_tablesize-1) 4KB elements with one 64KB
830 * element.
831 * 32bit -> 468 or 238KB 64bit -> 424 or 212KB
832 */
833 dev->scsi_host_ptr->max_sectors =
834 (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
835 }
836 }
837
838 fib_complete(fibptr);
839 fib_free(fibptr);
840
841 return rcode;
842 }
843
844
845 static void io_callback(void *context, struct fib * fibptr)
846 {
847 struct aac_dev *dev;
848 struct aac_read_reply *readreply;
849 struct scsi_cmnd *scsicmd;
850 u32 cid;
851
852 scsicmd = (struct scsi_cmnd *) context;
853
854 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
855 cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
856
857 dprintk((KERN_DEBUG "io_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3], jiffies));
858
859 if (fibptr == NULL)
860 BUG();
861
862 if(scsicmd->use_sg)
863 pci_unmap_sg(dev->pdev,
864 (struct scatterlist *)scsicmd->buffer,
865 scsicmd->use_sg,
866 scsicmd->sc_data_direction);
867 else if(scsicmd->request_bufflen)
868 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle,
869 scsicmd->request_bufflen,
870 scsicmd->sc_data_direction);
871 readreply = (struct aac_read_reply *)fib_data(fibptr);
872 if (le32_to_cpu(readreply->status) == ST_OK)
873 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
874 else {
875 #ifdef AAC_DETAILED_STATUS_INFO
876 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
877 le32_to_cpu(readreply->status));
878 #endif
879 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
880 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
881 HARDWARE_ERROR,
882 SENCODE_INTERNAL_TARGET_FAILURE,
883 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
884 0, 0);
885 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
886 (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
887 ? sizeof(scsicmd->sense_buffer)
888 : sizeof(dev->fsa_dev[cid].sense_data));
889 }
890 fib_complete(fibptr);
891 fib_free(fibptr);
892
893 aac_io_done(scsicmd);
894 }
895
896 static int aac_read(struct scsi_cmnd * scsicmd, int cid)
897 {
898 u32 lba;
899 u32 count;
900 int status;
901
902 u16 fibsize;
903 struct aac_dev *dev;
904 struct fib * cmd_fibcontext;
905
906 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
907 /*
908 * Get block address and transfer length
909 */
910 if (scsicmd->cmnd[0] == READ_6) /* 6 byte command */
911 {
912 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", cid));
913
914 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
915 count = scsicmd->cmnd[4];
916
917 if (count == 0)
918 count = 256;
919 } else {
920 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", cid));
921
922 lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
923 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
924 }
925 dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %u, t = %ld.\n",
926 smp_processor_id(), (unsigned long long)lba, jiffies));
927 /*
928 * Alocate and initialize a Fib
929 */
930 if (!(cmd_fibcontext = fib_alloc(dev))) {
931 return -1;
932 }
933
934 fib_init(cmd_fibcontext);
935
936 if (dev->raw_io_interface) {
937 struct aac_raw_io *readcmd;
938 readcmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
939 readcmd->block[0] = cpu_to_le32(lba);
940 readcmd->block[1] = 0;
941 readcmd->count = cpu_to_le32(count<<9);
942 readcmd->cid = cpu_to_le16(cid);
943 readcmd->flags = cpu_to_le16(1);
944 readcmd->bpTotal = 0;
945 readcmd->bpComplete = 0;
946
947 aac_build_sgraw(scsicmd, &readcmd->sg);
948 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
949 if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))
950 BUG();
951 /*
952 * Now send the Fib to the adapter
953 */
954 status = fib_send(ContainerRawIo,
955 cmd_fibcontext,
956 fibsize,
957 FsaNormal,
958 0, 1,
959 (fib_callback) io_callback,
960 (void *) scsicmd);
961 } else if (dev->dac_support == 1) {
962 struct aac_read64 *readcmd;
963 readcmd = (struct aac_read64 *) fib_data(cmd_fibcontext);
964 readcmd->command = cpu_to_le32(VM_CtHostRead64);
965 readcmd->cid = cpu_to_le16(cid);
966 readcmd->sector_count = cpu_to_le16(count);
967 readcmd->block = cpu_to_le32(lba);
968 readcmd->pad = 0;
969 readcmd->flags = 0;
970
971 aac_build_sg64(scsicmd, &readcmd->sg);
972 fibsize = sizeof(struct aac_read64) +
973 ((le32_to_cpu(readcmd->sg.count) - 1) *
974 sizeof (struct sgentry64));
975 BUG_ON (fibsize > (dev->max_fib_size -
976 sizeof(struct aac_fibhdr)));
977 /*
978 * Now send the Fib to the adapter
979 */
980 status = fib_send(ContainerCommand64,
981 cmd_fibcontext,
982 fibsize,
983 FsaNormal,
984 0, 1,
985 (fib_callback) io_callback,
986 (void *) scsicmd);
987 } else {
988 struct aac_read *readcmd;
989 readcmd = (struct aac_read *) fib_data(cmd_fibcontext);
990 readcmd->command = cpu_to_le32(VM_CtBlockRead);
991 readcmd->cid = cpu_to_le32(cid);
992 readcmd->block = cpu_to_le32(lba);
993 readcmd->count = cpu_to_le32(count * 512);
994
995 aac_build_sg(scsicmd, &readcmd->sg);
996 fibsize = sizeof(struct aac_read) +
997 ((le32_to_cpu(readcmd->sg.count) - 1) *
998 sizeof (struct sgentry));
999 BUG_ON (fibsize > (dev->max_fib_size -
1000 sizeof(struct aac_fibhdr)));
1001 /*
1002 * Now send the Fib to the adapter
1003 */
1004 status = fib_send(ContainerCommand,
1005 cmd_fibcontext,
1006 fibsize,
1007 FsaNormal,
1008 0, 1,
1009 (fib_callback) io_callback,
1010 (void *) scsicmd);
1011 }
1012
1013
1014
1015 /*
1016 * Check that the command queued to the controller
1017 */
1018 if (status == -EINPROGRESS)
1019 return 0;
1020
1021 printk(KERN_WARNING "aac_read: fib_send failed with status: %d.\n", status);
1022 /*
1023 * For some reason, the Fib didn't queue, return QUEUE_FULL
1024 */
1025 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1026 aac_io_done(scsicmd);
1027 fib_complete(cmd_fibcontext);
1028 fib_free(cmd_fibcontext);
1029 return 0;
1030 }
1031
1032 static int aac_write(struct scsi_cmnd * scsicmd, int cid)
1033 {
1034 u32 lba;
1035 u32 count;
1036 int status;
1037 u16 fibsize;
1038 struct aac_dev *dev;
1039 struct fib * cmd_fibcontext;
1040
1041 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1042 /*
1043 * Get block address and transfer length
1044 */
1045 if (scsicmd->cmnd[0] == WRITE_6) /* 6 byte command */
1046 {
1047 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1048 count = scsicmd->cmnd[4];
1049 if (count == 0)
1050 count = 256;
1051 } else {
1052 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", cid));
1053 lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1054 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1055 }
1056 dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %u, t = %ld.\n",
1057 smp_processor_id(), (unsigned long long)lba, jiffies));
1058 /*
1059 * Allocate and initialize a Fib then setup a BlockWrite command
1060 */
1061 if (!(cmd_fibcontext = fib_alloc(dev))) {
1062 scsicmd->result = DID_ERROR << 16;
1063 aac_io_done(scsicmd);
1064 return 0;
1065 }
1066 fib_init(cmd_fibcontext);
1067
1068 if (dev->raw_io_interface) {
1069 struct aac_raw_io *writecmd;
1070 writecmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
1071 writecmd->block[0] = cpu_to_le32(lba);
1072 writecmd->block[1] = 0;
1073 writecmd->count = cpu_to_le32(count<<9);
1074 writecmd->cid = cpu_to_le16(cid);
1075 writecmd->flags = 0;
1076 writecmd->bpTotal = 0;
1077 writecmd->bpComplete = 0;
1078
1079 aac_build_sgraw(scsicmd, &writecmd->sg);
1080 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1081 if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))
1082 BUG();
1083 /*
1084 * Now send the Fib to the adapter
1085 */
1086 status = fib_send(ContainerRawIo,
1087 cmd_fibcontext,
1088 fibsize,
1089 FsaNormal,
1090 0, 1,
1091 (fib_callback) io_callback,
1092 (void *) scsicmd);
1093 } else if (dev->dac_support == 1) {
1094 struct aac_write64 *writecmd;
1095 writecmd = (struct aac_write64 *) fib_data(cmd_fibcontext);
1096 writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1097 writecmd->cid = cpu_to_le16(cid);
1098 writecmd->sector_count = cpu_to_le16(count);
1099 writecmd->block = cpu_to_le32(lba);
1100 writecmd->pad = 0;
1101 writecmd->flags = 0;
1102
1103 aac_build_sg64(scsicmd, &writecmd->sg);
1104 fibsize = sizeof(struct aac_write64) +
1105 ((le32_to_cpu(writecmd->sg.count) - 1) *
1106 sizeof (struct sgentry64));
1107 BUG_ON (fibsize > (dev->max_fib_size -
1108 sizeof(struct aac_fibhdr)));
1109 /*
1110 * Now send the Fib to the adapter
1111 */
1112 status = fib_send(ContainerCommand64,
1113 cmd_fibcontext,
1114 fibsize,
1115 FsaNormal,
1116 0, 1,
1117 (fib_callback) io_callback,
1118 (void *) scsicmd);
1119 } else {
1120 struct aac_write *writecmd;
1121 writecmd = (struct aac_write *) fib_data(cmd_fibcontext);
1122 writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1123 writecmd->cid = cpu_to_le32(cid);
1124 writecmd->block = cpu_to_le32(lba);
1125 writecmd->count = cpu_to_le32(count * 512);
1126 writecmd->sg.count = cpu_to_le32(1);
1127 /* ->stable is not used - it did mean which type of write */
1128
1129 aac_build_sg(scsicmd, &writecmd->sg);
1130 fibsize = sizeof(struct aac_write) +
1131 ((le32_to_cpu(writecmd->sg.count) - 1) *
1132 sizeof (struct sgentry));
1133 BUG_ON (fibsize > (dev->max_fib_size -
1134 sizeof(struct aac_fibhdr)));
1135 /*
1136 * Now send the Fib to the adapter
1137 */
1138 status = fib_send(ContainerCommand,
1139 cmd_fibcontext,
1140 fibsize,
1141 FsaNormal,
1142 0, 1,
1143 (fib_callback) io_callback,
1144 (void *) scsicmd);
1145 }
1146
1147 /*
1148 * Check that the command queued to the controller
1149 */
1150 if (status == -EINPROGRESS)
1151 {
1152 return 0;
1153 }
1154
1155 printk(KERN_WARNING "aac_write: fib_send failed with status: %d\n", status);
1156 /*
1157 * For some reason, the Fib didn't queue, return QUEUE_FULL
1158 */
1159 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1160 aac_io_done(scsicmd);
1161
1162 fib_complete(cmd_fibcontext);
1163 fib_free(cmd_fibcontext);
1164 return 0;
1165 }
1166
1167 static void synchronize_callback(void *context, struct fib *fibptr)
1168 {
1169 struct aac_synchronize_reply *synchronizereply;
1170 struct scsi_cmnd *cmd;
1171
1172 cmd = context;
1173
1174 dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1175 smp_processor_id(), jiffies));
1176 BUG_ON(fibptr == NULL);
1177
1178
1179 synchronizereply = fib_data(fibptr);
1180 if (le32_to_cpu(synchronizereply->status) == CT_OK)
1181 cmd->result = DID_OK << 16 |
1182 COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1183 else {
1184 struct scsi_device *sdev = cmd->device;
1185 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
1186 u32 cid = ID_LUN_TO_CONTAINER(sdev->id, sdev->lun);
1187 printk(KERN_WARNING
1188 "synchronize_callback: synchronize failed, status = %d\n",
1189 le32_to_cpu(synchronizereply->status));
1190 cmd->result = DID_OK << 16 |
1191 COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1192 set_sense((u8 *)&dev->fsa_dev[cid].sense_data,
1193 HARDWARE_ERROR,
1194 SENCODE_INTERNAL_TARGET_FAILURE,
1195 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1196 0, 0);
1197 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1198 min(sizeof(dev->fsa_dev[cid].sense_data),
1199 sizeof(cmd->sense_buffer)));
1200 }
1201
1202 fib_complete(fibptr);
1203 fib_free(fibptr);
1204 aac_io_done(cmd);
1205 }
1206
1207 static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
1208 {
1209 int status;
1210 struct fib *cmd_fibcontext;
1211 struct aac_synchronize *synchronizecmd;
1212 struct scsi_cmnd *cmd;
1213 struct scsi_device *sdev = scsicmd->device;
1214 int active = 0;
1215 unsigned long flags;
1216
1217 /*
1218 * Wait for all commands to complete to this specific
1219 * target (block).
1220 */
1221 spin_lock_irqsave(&sdev->list_lock, flags);
1222 list_for_each_entry(cmd, &sdev->cmd_list, list)
1223 if (cmd != scsicmd && cmd->serial_number != 0) {
1224 ++active;
1225 break;
1226 }
1227
1228 spin_unlock_irqrestore(&sdev->list_lock, flags);
1229
1230 /*
1231 * Yield the processor (requeue for later)
1232 */
1233 if (active)
1234 return SCSI_MLQUEUE_DEVICE_BUSY;
1235
1236 /*
1237 * Allocate and initialize a Fib
1238 */
1239 if (!(cmd_fibcontext =
1240 fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata)))
1241 return SCSI_MLQUEUE_HOST_BUSY;
1242
1243 fib_init(cmd_fibcontext);
1244
1245 synchronizecmd = fib_data(cmd_fibcontext);
1246 synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1247 synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1248 synchronizecmd->cid = cpu_to_le32(cid);
1249 synchronizecmd->count =
1250 cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1251
1252 /*
1253 * Now send the Fib to the adapter
1254 */
1255 status = fib_send(ContainerCommand,
1256 cmd_fibcontext,
1257 sizeof(struct aac_synchronize),
1258 FsaNormal,
1259 0, 1,
1260 (fib_callback)synchronize_callback,
1261 (void *)scsicmd);
1262
1263 /*
1264 * Check that the command queued to the controller
1265 */
1266 if (status == -EINPROGRESS)
1267 return 0;
1268
1269 printk(KERN_WARNING
1270 "aac_synchronize: fib_send failed with status: %d.\n", status);
1271 fib_complete(cmd_fibcontext);
1272 fib_free(cmd_fibcontext);
1273 return SCSI_MLQUEUE_HOST_BUSY;
1274 }
1275
1276 /**
1277 * aac_scsi_cmd() - Process SCSI command
1278 * @scsicmd: SCSI command block
1279 *
1280 * Emulate a SCSI command and queue the required request for the
1281 * aacraid firmware.
1282 */
1283
1284 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1285 {
1286 u32 cid = 0;
1287 struct Scsi_Host *host = scsicmd->device->host;
1288 struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1289 struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1290 int cardtype = dev->cardtype;
1291 int ret;
1292
1293 /*
1294 * If the bus, id or lun is out of range, return fail
1295 * Test does not apply to ID 16, the pseudo id for the controller
1296 * itself.
1297 */
1298 if (scsicmd->device->id != host->this_id) {
1299 if ((scsicmd->device->channel == 0) ){
1300 if( (scsicmd->device->id >= dev->maximum_num_containers) || (scsicmd->device->lun != 0)){
1301 scsicmd->result = DID_NO_CONNECT << 16;
1302 scsicmd->scsi_done(scsicmd);
1303 return 0;
1304 }
1305 cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
1306
1307 /*
1308 * If the target container doesn't exist, it may have
1309 * been newly created
1310 */
1311 if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1312 switch (scsicmd->cmnd[0]) {
1313 case INQUIRY:
1314 case READ_CAPACITY:
1315 case TEST_UNIT_READY:
1316 spin_unlock_irq(host->host_lock);
1317 probe_container(dev, cid);
1318 spin_lock_irq(host->host_lock);
1319 if (fsa_dev_ptr[cid].valid == 0) {
1320 scsicmd->result = DID_NO_CONNECT << 16;
1321 scsicmd->scsi_done(scsicmd);
1322 return 0;
1323 }
1324 default:
1325 break;
1326 }
1327 }
1328 /*
1329 * If the target container still doesn't exist,
1330 * return failure
1331 */
1332 if (fsa_dev_ptr[cid].valid == 0) {
1333 scsicmd->result = DID_BAD_TARGET << 16;
1334 scsicmd->scsi_done(scsicmd);
1335 return 0;
1336 }
1337 } else { /* check for physical non-dasd devices */
1338 if(dev->nondasd_support == 1){
1339 return aac_send_srb_fib(scsicmd);
1340 } else {
1341 scsicmd->result = DID_NO_CONNECT << 16;
1342 scsicmd->scsi_done(scsicmd);
1343 return 0;
1344 }
1345 }
1346 }
1347 /*
1348 * else Command for the controller itself
1349 */
1350 else if ((scsicmd->cmnd[0] != INQUIRY) && /* only INQUIRY & TUR cmnd supported for controller */
1351 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1352 {
1353 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1354 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1355 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1356 ILLEGAL_REQUEST,
1357 SENCODE_INVALID_COMMAND,
1358 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1359 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1360 (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1361 ? sizeof(scsicmd->sense_buffer)
1362 : sizeof(dev->fsa_dev[cid].sense_data));
1363 scsicmd->scsi_done(scsicmd);
1364 return 0;
1365 }
1366
1367
1368 /* Handle commands here that don't really require going out to the adapter */
1369 switch (scsicmd->cmnd[0]) {
1370 case INQUIRY:
1371 {
1372 struct inquiry_data inq_data;
1373
1374 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scsicmd->device->id));
1375 memset(&inq_data, 0, sizeof (struct inquiry_data));
1376
1377 inq_data.inqd_ver = 2; /* claim compliance to SCSI-2 */
1378 inq_data.inqd_dtq = 0x80; /* set RMB bit to one indicating that the medium is removable */
1379 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 */
1380 inq_data.inqd_len = 31;
1381 /*Format for "pad2" is RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */
1382 inq_data.inqd_pad2= 0x32 ; /*WBus16|Sync|CmdQue */
1383 /*
1384 * Set the Vendor, Product, and Revision Level
1385 * see: <vendor>.c i.e. aac.c
1386 */
1387 if (scsicmd->device->id == host->this_id) {
1388 setinqstr(cardtype, (void *) (inq_data.inqd_vid), (sizeof(container_types)/sizeof(char *)));
1389 inq_data.inqd_pdt = INQD_PDT_PROC; /* Processor device */
1390 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
1391 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1392 scsicmd->scsi_done(scsicmd);
1393 return 0;
1394 }
1395 setinqstr(cardtype, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
1396 inq_data.inqd_pdt = INQD_PDT_DA; /* Direct/random access device */
1397 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
1398 return aac_get_container_name(scsicmd, cid);
1399 }
1400 case READ_CAPACITY:
1401 {
1402 u32 capacity;
1403 char cp[8];
1404
1405 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
1406 if (fsa_dev_ptr[cid].size <= 0x100000000LL)
1407 capacity = fsa_dev_ptr[cid].size - 1;
1408 else
1409 capacity = (u32)-1;
1410
1411 cp[0] = (capacity >> 24) & 0xff;
1412 cp[1] = (capacity >> 16) & 0xff;
1413 cp[2] = (capacity >> 8) & 0xff;
1414 cp[3] = (capacity >> 0) & 0xff;
1415 cp[4] = 0;
1416 cp[5] = 0;
1417 cp[6] = 2;
1418 cp[7] = 0;
1419 aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
1420
1421 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1422 scsicmd->scsi_done(scsicmd);
1423
1424 return 0;
1425 }
1426
1427 case MODE_SENSE:
1428 {
1429 char mode_buf[4];
1430
1431 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
1432 mode_buf[0] = 3; /* Mode data length */
1433 mode_buf[1] = 0; /* Medium type - default */
1434 mode_buf[2] = 0; /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1435 mode_buf[3] = 0; /* Block descriptor length */
1436
1437 aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
1438 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1439 scsicmd->scsi_done(scsicmd);
1440
1441 return 0;
1442 }
1443 case MODE_SENSE_10:
1444 {
1445 char mode_buf[8];
1446
1447 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
1448 mode_buf[0] = 0; /* Mode data length (MSB) */
1449 mode_buf[1] = 6; /* Mode data length (LSB) */
1450 mode_buf[2] = 0; /* Medium type - default */
1451 mode_buf[3] = 0; /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1452 mode_buf[4] = 0; /* reserved */
1453 mode_buf[5] = 0; /* reserved */
1454 mode_buf[6] = 0; /* Block descriptor length (MSB) */
1455 mode_buf[7] = 0; /* Block descriptor length (LSB) */
1456 aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
1457
1458 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1459 scsicmd->scsi_done(scsicmd);
1460
1461 return 0;
1462 }
1463 case REQUEST_SENSE:
1464 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
1465 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
1466 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
1467 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1468 scsicmd->scsi_done(scsicmd);
1469 return 0;
1470
1471 case ALLOW_MEDIUM_REMOVAL:
1472 dprintk((KERN_DEBUG "LOCK command.\n"));
1473 if (scsicmd->cmnd[4])
1474 fsa_dev_ptr[cid].locked = 1;
1475 else
1476 fsa_dev_ptr[cid].locked = 0;
1477
1478 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1479 scsicmd->scsi_done(scsicmd);
1480 return 0;
1481 /*
1482 * These commands are all No-Ops
1483 */
1484 case TEST_UNIT_READY:
1485 case RESERVE:
1486 case RELEASE:
1487 case REZERO_UNIT:
1488 case REASSIGN_BLOCKS:
1489 case SEEK_10:
1490 case START_STOP:
1491 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1492 scsicmd->scsi_done(scsicmd);
1493 return 0;
1494 }
1495
1496 switch (scsicmd->cmnd[0])
1497 {
1498 case READ_6:
1499 case READ_10:
1500 /*
1501 * Hack to keep track of ordinal number of the device that
1502 * corresponds to a container. Needed to convert
1503 * containers to /dev/sd device names
1504 */
1505
1506 spin_unlock_irq(host->host_lock);
1507 if (scsicmd->request->rq_disk)
1508 memcpy(fsa_dev_ptr[cid].devname,
1509 scsicmd->request->rq_disk->disk_name,
1510 8);
1511
1512 ret = aac_read(scsicmd, cid);
1513 spin_lock_irq(host->host_lock);
1514 return ret;
1515
1516 case WRITE_6:
1517 case WRITE_10:
1518 spin_unlock_irq(host->host_lock);
1519 ret = aac_write(scsicmd, cid);
1520 spin_lock_irq(host->host_lock);
1521 return ret;
1522
1523 case SYNCHRONIZE_CACHE:
1524 /* Issue FIB to tell Firmware to flush it's cache */
1525 return aac_synchronize(scsicmd, cid);
1526
1527 default:
1528 /*
1529 * Unhandled commands
1530 */
1531 dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
1532 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1533 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1534 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
1535 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1536 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1537 (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1538 ? sizeof(scsicmd->sense_buffer)
1539 : sizeof(dev->fsa_dev[cid].sense_data));
1540 scsicmd->scsi_done(scsicmd);
1541 return 0;
1542 }
1543 }
1544
1545 static int query_disk(struct aac_dev *dev, void __user *arg)
1546 {
1547 struct aac_query_disk qd;
1548 struct fsa_dev_info *fsa_dev_ptr;
1549
1550 fsa_dev_ptr = dev->fsa_dev;
1551 if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
1552 return -EFAULT;
1553 if (qd.cnum == -1)
1554 qd.cnum = ID_LUN_TO_CONTAINER(qd.id, qd.lun);
1555 else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
1556 {
1557 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
1558 return -EINVAL;
1559 qd.instance = dev->scsi_host_ptr->host_no;
1560 qd.bus = 0;
1561 qd.id = CONTAINER_TO_ID(qd.cnum);
1562 qd.lun = CONTAINER_TO_LUN(qd.cnum);
1563 }
1564 else return -EINVAL;
1565
1566 qd.valid = fsa_dev_ptr[qd.cnum].valid;
1567 qd.locked = fsa_dev_ptr[qd.cnum].locked;
1568 qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
1569
1570 if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
1571 qd.unmapped = 1;
1572 else
1573 qd.unmapped = 0;
1574
1575 strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
1576 min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
1577
1578 if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
1579 return -EFAULT;
1580 return 0;
1581 }
1582
1583 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
1584 {
1585 struct aac_delete_disk dd;
1586 struct fsa_dev_info *fsa_dev_ptr;
1587
1588 fsa_dev_ptr = dev->fsa_dev;
1589
1590 if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1591 return -EFAULT;
1592
1593 if (dd.cnum >= dev->maximum_num_containers)
1594 return -EINVAL;
1595 /*
1596 * Mark this container as being deleted.
1597 */
1598 fsa_dev_ptr[dd.cnum].deleted = 1;
1599 /*
1600 * Mark the container as no longer valid
1601 */
1602 fsa_dev_ptr[dd.cnum].valid = 0;
1603 return 0;
1604 }
1605
1606 static int delete_disk(struct aac_dev *dev, void __user *arg)
1607 {
1608 struct aac_delete_disk dd;
1609 struct fsa_dev_info *fsa_dev_ptr;
1610
1611 fsa_dev_ptr = dev->fsa_dev;
1612
1613 if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1614 return -EFAULT;
1615
1616 if (dd.cnum >= dev->maximum_num_containers)
1617 return -EINVAL;
1618 /*
1619 * If the container is locked, it can not be deleted by the API.
1620 */
1621 if (fsa_dev_ptr[dd.cnum].locked)
1622 return -EBUSY;
1623 else {
1624 /*
1625 * Mark the container as no longer being valid.
1626 */
1627 fsa_dev_ptr[dd.cnum].valid = 0;
1628 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
1629 return 0;
1630 }
1631 }
1632
1633 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
1634 {
1635 switch (cmd) {
1636 case FSACTL_QUERY_DISK:
1637 return query_disk(dev, arg);
1638 case FSACTL_DELETE_DISK:
1639 return delete_disk(dev, arg);
1640 case FSACTL_FORCE_DELETE_DISK:
1641 return force_delete_disk(dev, arg);
1642 case FSACTL_GET_CONTAINERS:
1643 return aac_get_containers(dev);
1644 default:
1645 return -ENOTTY;
1646 }
1647 }
1648
1649 /**
1650 *
1651 * aac_srb_callback
1652 * @context: the context set in the fib - here it is scsi cmd
1653 * @fibptr: pointer to the fib
1654 *
1655 * Handles the completion of a scsi command to a non dasd device
1656 *
1657 */
1658
1659 static void aac_srb_callback(void *context, struct fib * fibptr)
1660 {
1661 struct aac_dev *dev;
1662 struct aac_srb_reply *srbreply;
1663 struct scsi_cmnd *scsicmd;
1664
1665 scsicmd = (struct scsi_cmnd *) context;
1666 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1667
1668 if (fibptr == NULL)
1669 BUG();
1670
1671 srbreply = (struct aac_srb_reply *) fib_data(fibptr);
1672
1673 scsicmd->sense_buffer[0] = '\0'; /* Initialize sense valid flag to false */
1674 /*
1675 * Calculate resid for sg
1676 */
1677
1678 scsicmd->resid = scsicmd->request_bufflen -
1679 le32_to_cpu(srbreply->data_xfer_length);
1680
1681 if(scsicmd->use_sg)
1682 pci_unmap_sg(dev->pdev,
1683 (struct scatterlist *)scsicmd->buffer,
1684 scsicmd->use_sg,
1685 scsicmd->sc_data_direction);
1686 else if(scsicmd->request_bufflen)
1687 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, scsicmd->request_bufflen,
1688 scsicmd->sc_data_direction);
1689
1690 /*
1691 * First check the fib status
1692 */
1693
1694 if (le32_to_cpu(srbreply->status) != ST_OK){
1695 int len;
1696 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
1697 len = (le32_to_cpu(srbreply->sense_data_size) >
1698 sizeof(scsicmd->sense_buffer)) ?
1699 sizeof(scsicmd->sense_buffer) :
1700 le32_to_cpu(srbreply->sense_data_size);
1701 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1702 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1703 }
1704
1705 /*
1706 * Next check the srb status
1707 */
1708 switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
1709 case SRB_STATUS_ERROR_RECOVERY:
1710 case SRB_STATUS_PENDING:
1711 case SRB_STATUS_SUCCESS:
1712 if(scsicmd->cmnd[0] == INQUIRY ){
1713 u8 b;
1714 u8 b1;
1715 /* We can't expose disk devices because we can't tell whether they
1716 * are the raw container drives or stand alone drives. If they have
1717 * the removable bit set then we should expose them though.
1718 */
1719 b = (*(u8*)scsicmd->buffer)&0x1f;
1720 b1 = ((u8*)scsicmd->buffer)[1];
1721 if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1722 || (b==TYPE_DISK && (b1&0x80)) ){
1723 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1724 /*
1725 * We will allow disk devices if in RAID/SCSI mode and
1726 * the channel is 2
1727 */
1728 } else if ((dev->raid_scsi_mode) &&
1729 (scsicmd->device->channel == 2)) {
1730 scsicmd->result = DID_OK << 16 |
1731 COMMAND_COMPLETE << 8;
1732 } else {
1733 scsicmd->result = DID_NO_CONNECT << 16 |
1734 COMMAND_COMPLETE << 8;
1735 }
1736 } else {
1737 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1738 }
1739 break;
1740 case SRB_STATUS_DATA_OVERRUN:
1741 switch(scsicmd->cmnd[0]){
1742 case READ_6:
1743 case WRITE_6:
1744 case READ_10:
1745 case WRITE_10:
1746 case READ_12:
1747 case WRITE_12:
1748 if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
1749 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
1750 } else {
1751 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
1752 }
1753 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1754 break;
1755 case INQUIRY: {
1756 u8 b;
1757 u8 b1;
1758 /* We can't expose disk devices because we can't tell whether they
1759 * are the raw container drives or stand alone drives
1760 */
1761 b = (*(u8*)scsicmd->buffer)&0x0f;
1762 b1 = ((u8*)scsicmd->buffer)[1];
1763 if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1764 || (b==TYPE_DISK && (b1&0x80)) ){
1765 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1766 /*
1767 * We will allow disk devices if in RAID/SCSI mode and
1768 * the channel is 2
1769 */
1770 } else if ((dev->raid_scsi_mode) &&
1771 (scsicmd->device->channel == 2)) {
1772 scsicmd->result = DID_OK << 16 |
1773 COMMAND_COMPLETE << 8;
1774 } else {
1775 scsicmd->result = DID_NO_CONNECT << 16 |
1776 COMMAND_COMPLETE << 8;
1777 }
1778 break;
1779 }
1780 default:
1781 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1782 break;
1783 }
1784 break;
1785 case SRB_STATUS_ABORTED:
1786 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
1787 break;
1788 case SRB_STATUS_ABORT_FAILED:
1789 // Not sure about this one - but assuming the hba was trying to abort for some reason
1790 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
1791 break;
1792 case SRB_STATUS_PARITY_ERROR:
1793 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
1794 break;
1795 case SRB_STATUS_NO_DEVICE:
1796 case SRB_STATUS_INVALID_PATH_ID:
1797 case SRB_STATUS_INVALID_TARGET_ID:
1798 case SRB_STATUS_INVALID_LUN:
1799 case SRB_STATUS_SELECTION_TIMEOUT:
1800 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1801 break;
1802
1803 case SRB_STATUS_COMMAND_TIMEOUT:
1804 case SRB_STATUS_TIMEOUT:
1805 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
1806 break;
1807
1808 case SRB_STATUS_BUSY:
1809 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
1810 break;
1811
1812 case SRB_STATUS_BUS_RESET:
1813 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
1814 break;
1815
1816 case SRB_STATUS_MESSAGE_REJECTED:
1817 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
1818 break;
1819 case SRB_STATUS_REQUEST_FLUSHED:
1820 case SRB_STATUS_ERROR:
1821 case SRB_STATUS_INVALID_REQUEST:
1822 case SRB_STATUS_REQUEST_SENSE_FAILED:
1823 case SRB_STATUS_NO_HBA:
1824 case SRB_STATUS_UNEXPECTED_BUS_FREE:
1825 case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
1826 case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
1827 case SRB_STATUS_DELAYED_RETRY:
1828 case SRB_STATUS_BAD_FUNCTION:
1829 case SRB_STATUS_NOT_STARTED:
1830 case SRB_STATUS_NOT_IN_USE:
1831 case SRB_STATUS_FORCE_ABORT:
1832 case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
1833 default:
1834 #ifdef AAC_DETAILED_STATUS_INFO
1835 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
1836 le32_to_cpu(srbreply->srb_status) & 0x3F,
1837 aac_get_status_string(
1838 le32_to_cpu(srbreply->srb_status) & 0x3F),
1839 scsicmd->cmnd[0],
1840 le32_to_cpu(srbreply->scsi_status));
1841 #endif
1842 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1843 break;
1844 }
1845 if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){ // Check Condition
1846 int len;
1847 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
1848 len = (le32_to_cpu(srbreply->sense_data_size) >
1849 sizeof(scsicmd->sense_buffer)) ?
1850 sizeof(scsicmd->sense_buffer) :
1851 le32_to_cpu(srbreply->sense_data_size);
1852 #ifdef AAC_DETAILED_STATUS_INFO
1853 dprintk((KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
1854 le32_to_cpu(srbreply->status), len));
1855 #endif
1856 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1857
1858 }
1859 /*
1860 * OR in the scsi status (already shifted up a bit)
1861 */
1862 scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
1863
1864 fib_complete(fibptr);
1865 fib_free(fibptr);
1866 aac_io_done(scsicmd);
1867 }
1868
1869 /**
1870 *
1871 * aac_send_scb_fib
1872 * @scsicmd: the scsi command block
1873 *
1874 * This routine will form a FIB and fill in the aac_srb from the
1875 * scsicmd passed in.
1876 */
1877
1878 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
1879 {
1880 struct fib* cmd_fibcontext;
1881 struct aac_dev* dev;
1882 int status;
1883 struct aac_srb *srbcmd;
1884 u16 fibsize;
1885 u32 flag;
1886 u32 timeout;
1887
1888 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1889 if (scsicmd->device->id >= dev->maximum_num_physicals ||
1890 scsicmd->device->lun > 7) {
1891 scsicmd->result = DID_NO_CONNECT << 16;
1892 scsicmd->scsi_done(scsicmd);
1893 return 0;
1894 }
1895
1896 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1897 switch(scsicmd->sc_data_direction){
1898 case DMA_TO_DEVICE:
1899 flag = SRB_DataOut;
1900 break;
1901 case DMA_BIDIRECTIONAL:
1902 flag = SRB_DataIn | SRB_DataOut;
1903 break;
1904 case DMA_FROM_DEVICE:
1905 flag = SRB_DataIn;
1906 break;
1907 case DMA_NONE:
1908 default: /* shuts up some versions of gcc */
1909 flag = SRB_NoDataXfer;
1910 break;
1911 }
1912
1913
1914 /*
1915 * Allocate and initialize a Fib then setup a BlockWrite command
1916 */
1917 if (!(cmd_fibcontext = fib_alloc(dev))) {
1918 return -1;
1919 }
1920 fib_init(cmd_fibcontext);
1921
1922 srbcmd = (struct aac_srb*) fib_data(cmd_fibcontext);
1923 srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1924 srbcmd->channel = cpu_to_le32(aac_logical_to_phys(scsicmd->device->channel));
1925 srbcmd->id = cpu_to_le32(scsicmd->device->id);
1926 srbcmd->lun = cpu_to_le32(scsicmd->device->lun);
1927 srbcmd->flags = cpu_to_le32(flag);
1928 timeout = scsicmd->timeout_per_command/HZ;
1929 if(timeout == 0){
1930 timeout = 1;
1931 }
1932 srbcmd->timeout = cpu_to_le32(timeout); // timeout in seconds
1933 srbcmd->retry_limit = 0; /* Obsolete parameter */
1934 srbcmd->cdb_size = cpu_to_le32(scsicmd->cmd_len);
1935
1936 if( dev->dac_support == 1 ) {
1937 aac_build_sg64(scsicmd, (struct sgmap64*) &srbcmd->sg);
1938 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1939
1940 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1941 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1942 /*
1943 * Build Scatter/Gather list
1944 */
1945 fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
1946 ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
1947 sizeof (struct sgentry64));
1948 BUG_ON (fibsize > (dev->max_fib_size -
1949 sizeof(struct aac_fibhdr)));
1950
1951 /*
1952 * Now send the Fib to the adapter
1953 */
1954 status = fib_send(ScsiPortCommand64, cmd_fibcontext,
1955 fibsize, FsaNormal, 0, 1,
1956 (fib_callback) aac_srb_callback,
1957 (void *) scsicmd);
1958 } else {
1959 aac_build_sg(scsicmd, (struct sgmap*)&srbcmd->sg);
1960 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
1961
1962 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1963 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
1964 /*
1965 * Build Scatter/Gather list
1966 */
1967 fibsize = sizeof (struct aac_srb) +
1968 (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
1969 sizeof (struct sgentry));
1970 BUG_ON (fibsize > (dev->max_fib_size -
1971 sizeof(struct aac_fibhdr)));
1972
1973 /*
1974 * Now send the Fib to the adapter
1975 */
1976 status = fib_send(ScsiPortCommand, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
1977 (fib_callback) aac_srb_callback, (void *) scsicmd);
1978 }
1979 /*
1980 * Check that the command queued to the controller
1981 */
1982 if (status == -EINPROGRESS){
1983 return 0;
1984 }
1985
1986 printk(KERN_WARNING "aac_srb: fib_send failed with status: %d\n", status);
1987 fib_complete(cmd_fibcontext);
1988 fib_free(cmd_fibcontext);
1989
1990 return -1;
1991 }
1992
1993 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
1994 {
1995 struct aac_dev *dev;
1996 unsigned long byte_count = 0;
1997
1998 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1999 // Get rid of old data
2000 psg->count = 0;
2001 psg->sg[0].addr = 0;
2002 psg->sg[0].count = 0;
2003 if (scsicmd->use_sg) {
2004 struct scatterlist *sg;
2005 int i;
2006 int sg_count;
2007 sg = (struct scatterlist *) scsicmd->request_buffer;
2008
2009 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2010 scsicmd->sc_data_direction);
2011 psg->count = cpu_to_le32(sg_count);
2012
2013 byte_count = 0;
2014
2015 for (i = 0; i < sg_count; i++) {
2016 psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2017 psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2018 byte_count += sg_dma_len(sg);
2019 sg++;
2020 }
2021 /* hba wants the size to be exact */
2022 if(byte_count > scsicmd->request_bufflen){
2023 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2024 (byte_count - scsicmd->request_bufflen);
2025 psg->sg[i-1].count = cpu_to_le32(temp);
2026 byte_count = scsicmd->request_bufflen;
2027 }
2028 /* Check for command underflow */
2029 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2030 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2031 byte_count, scsicmd->underflow);
2032 }
2033 }
2034 else if(scsicmd->request_bufflen) {
2035 dma_addr_t addr;
2036 addr = pci_map_single(dev->pdev,
2037 scsicmd->request_buffer,
2038 scsicmd->request_bufflen,
2039 scsicmd->sc_data_direction);
2040 psg->count = cpu_to_le32(1);
2041 psg->sg[0].addr = cpu_to_le32(addr);
2042 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
2043 scsicmd->SCp.dma_handle = addr;
2044 byte_count = scsicmd->request_bufflen;
2045 }
2046 return byte_count;
2047 }
2048
2049
2050 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2051 {
2052 struct aac_dev *dev;
2053 unsigned long byte_count = 0;
2054 u64 addr;
2055
2056 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2057 // Get rid of old data
2058 psg->count = 0;
2059 psg->sg[0].addr[0] = 0;
2060 psg->sg[0].addr[1] = 0;
2061 psg->sg[0].count = 0;
2062 if (scsicmd->use_sg) {
2063 struct scatterlist *sg;
2064 int i;
2065 int sg_count;
2066 sg = (struct scatterlist *) scsicmd->request_buffer;
2067
2068 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2069 scsicmd->sc_data_direction);
2070 psg->count = cpu_to_le32(sg_count);
2071
2072 byte_count = 0;
2073
2074 for (i = 0; i < sg_count; i++) {
2075 addr = sg_dma_address(sg);
2076 psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2077 psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2078 psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2079 byte_count += sg_dma_len(sg);
2080 sg++;
2081 }
2082 /* hba wants the size to be exact */
2083 if(byte_count > scsicmd->request_bufflen){
2084 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2085 (byte_count - scsicmd->request_bufflen);
2086 psg->sg[i-1].count = cpu_to_le32(temp);
2087 byte_count = scsicmd->request_bufflen;
2088 }
2089 /* Check for command underflow */
2090 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2091 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2092 byte_count, scsicmd->underflow);
2093 }
2094 }
2095 else if(scsicmd->request_bufflen) {
2096 u64 addr;
2097 addr = pci_map_single(dev->pdev,
2098 scsicmd->request_buffer,
2099 scsicmd->request_bufflen,
2100 scsicmd->sc_data_direction);
2101 psg->count = cpu_to_le32(1);
2102 psg->sg[0].addr[0] = cpu_to_le32(addr & 0xffffffff);
2103 psg->sg[0].addr[1] = cpu_to_le32(addr >> 32);
2104 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
2105 scsicmd->SCp.dma_handle = addr;
2106 byte_count = scsicmd->request_bufflen;
2107 }
2108 return byte_count;
2109 }
2110
2111 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2112 {
2113 struct Scsi_Host *host = scsicmd->device->host;
2114 struct aac_dev *dev = (struct aac_dev *)host->hostdata;
2115 unsigned long byte_count = 0;
2116
2117 // Get rid of old data
2118 psg->count = 0;
2119 psg->sg[0].next = 0;
2120 psg->sg[0].prev = 0;
2121 psg->sg[0].addr[0] = 0;
2122 psg->sg[0].addr[1] = 0;
2123 psg->sg[0].count = 0;
2124 psg->sg[0].flags = 0;
2125 if (scsicmd->use_sg) {
2126 struct scatterlist *sg;
2127 int i;
2128 int sg_count;
2129 sg = (struct scatterlist *) scsicmd->request_buffer;
2130
2131 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2132 scsicmd->sc_data_direction);
2133
2134 for (i = 0; i < sg_count; i++) {
2135 int count = sg_dma_len(sg);
2136 u64 addr = sg_dma_address(sg);
2137 psg->sg[i].next = 0;
2138 psg->sg[i].prev = 0;
2139 psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2140 psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2141 psg->sg[i].count = cpu_to_le32(count);
2142 psg->sg[i].flags = 0;
2143 byte_count += count;
2144 sg++;
2145 }
2146 psg->count = cpu_to_le32(sg_count);
2147 /* hba wants the size to be exact */
2148 if(byte_count > scsicmd->request_bufflen){
2149 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2150 (byte_count - scsicmd->request_bufflen);
2151 psg->sg[i-1].count = cpu_to_le32(temp);
2152 byte_count = scsicmd->request_bufflen;
2153 }
2154 /* Check for command underflow */
2155 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2156 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2157 byte_count, scsicmd->underflow);
2158 }
2159 }
2160 else if(scsicmd->request_bufflen) {
2161 int count;
2162 u64 addr;
2163 scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
2164 scsicmd->request_buffer,
2165 scsicmd->request_bufflen,
2166 scsicmd->sc_data_direction);
2167 addr = scsicmd->SCp.dma_handle;
2168 count = scsicmd->request_bufflen;
2169 psg->count = cpu_to_le32(1);
2170 psg->sg[0].next = 0;
2171 psg->sg[0].prev = 0;
2172 psg->sg[0].addr[1] = cpu_to_le32((u32)(addr>>32));
2173 psg->sg[0].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2174 psg->sg[0].count = cpu_to_le32(count);
2175 psg->sg[0].flags = 0;
2176 byte_count = scsicmd->request_bufflen;
2177 }
2178 return byte_count;
2179 }
2180
2181 #ifdef AAC_DETAILED_STATUS_INFO
2182
2183 struct aac_srb_status_info {
2184 u32 status;
2185 char *str;
2186 };
2187
2188
2189 static struct aac_srb_status_info srb_status_info[] = {
2190 { SRB_STATUS_PENDING, "Pending Status"},
2191 { SRB_STATUS_SUCCESS, "Success"},
2192 { SRB_STATUS_ABORTED, "Aborted Command"},
2193 { SRB_STATUS_ABORT_FAILED, "Abort Failed"},
2194 { SRB_STATUS_ERROR, "Error Event"},
2195 { SRB_STATUS_BUSY, "Device Busy"},
2196 { SRB_STATUS_INVALID_REQUEST, "Invalid Request"},
2197 { SRB_STATUS_INVALID_PATH_ID, "Invalid Path ID"},
2198 { SRB_STATUS_NO_DEVICE, "No Device"},
2199 { SRB_STATUS_TIMEOUT, "Timeout"},
2200 { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2201 { SRB_STATUS_COMMAND_TIMEOUT, "Command Timeout"},
2202 { SRB_STATUS_MESSAGE_REJECTED, "Message Rejected"},
2203 { SRB_STATUS_BUS_RESET, "Bus Reset"},
2204 { SRB_STATUS_PARITY_ERROR, "Parity Error"},
2205 { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2206 { SRB_STATUS_NO_HBA, "No HBA"},
2207 { SRB_STATUS_DATA_OVERRUN, "Data Overrun/Data Underrun"},
2208 { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2209 { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2210 { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2211 { SRB_STATUS_REQUEST_FLUSHED, "Request Flushed"},
2212 { SRB_STATUS_DELAYED_RETRY, "Delayed Retry"},
2213 { SRB_STATUS_INVALID_LUN, "Invalid LUN"},
2214 { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2215 { SRB_STATUS_BAD_FUNCTION, "Bad Function"},
2216 { SRB_STATUS_ERROR_RECOVERY, "Error Recovery"},
2217 { SRB_STATUS_NOT_STARTED, "Not Started"},
2218 { SRB_STATUS_NOT_IN_USE, "Not In Use"},
2219 { SRB_STATUS_FORCE_ABORT, "Force Abort"},
2220 { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2221 { 0xff, "Unknown Error"}
2222 };
2223
2224 char *aac_get_status_string(u32 status)
2225 {
2226 int i;
2227
2228 for(i=0; i < (sizeof(srb_status_info)/sizeof(struct aac_srb_status_info)); i++ ){
2229 if(srb_status_info[i].status == status){
2230 return srb_status_info[i].str;
2231 }
2232 }
2233
2234 return "Bad Status Code";
2235 }
2236
2237 #endif
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