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x86: cpa self-test, WARN_ON()
[wrt350n-kernel.git] / drivers / scsi / aacraid / aachba.c
blobd7235f42cf5faa730792415727e4998dbbd1cbc2
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) 2000-2007 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/pci.h>
30 #include <linux/spinlock.h>
31 #include <linux/slab.h>
32 #include <linux/completion.h>
33 #include <linux/blkdev.h>
34 #include <asm/semaphore.h>
35 #include <asm/uaccess.h>
36 #include <linux/highmem.h> /* For flush_kernel_dcache_page */
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 aac_cache = 0;
148 static int dacmode = -1;
149
150 int aac_commit = -1;
151 int startup_timeout = 180;
152 int aif_timeout = 120;
153
154 module_param(nondasd, int, S_IRUGO|S_IWUSR);
155 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
156 module_param_named(cache, aac_cache, int, S_IRUGO|S_IWUSR);
157 MODULE_PARM_DESC(cache, "Disable Queue Flush commands:\n\tbit 0 - Disable FUA in WRITE SCSI commands\n\tbit 1 - Disable SYNCHRONIZE_CACHE SCSI command\n\tbit 2 - Disable only if Battery not protecting Cache");
158 module_param(dacmode, int, S_IRUGO|S_IWUSR);
159 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
160 module_param_named(commit, aac_commit, int, S_IRUGO|S_IWUSR);
161 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");
162 module_param(startup_timeout, int, S_IRUGO|S_IWUSR);
163 MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for adapter to have it's kernel up and\nrunning. This is typically adjusted for large systems that do not have a BIOS.");
164 module_param(aif_timeout, int, S_IRUGO|S_IWUSR);
165 MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for applications to pick up AIFs before\nderegistering them. This is typically adjusted for heavily burdened systems.");
166
167 int numacb = -1;
168 module_param(numacb, int, S_IRUGO|S_IWUSR);
169 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control blocks (FIB) allocated. Valid values are 512 and down. Default is to use suggestion from Firmware.");
170
171 int acbsize = -1;
172 module_param(acbsize, int, S_IRUGO|S_IWUSR);
173 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB) size. Valid values are 512, 2048, 4096 and 8192. Default is to use suggestion from Firmware.");
174
175 int update_interval = 30 * 60;
176 module_param(update_interval, int, S_IRUGO|S_IWUSR);
177 MODULE_PARM_DESC(update_interval, "Interval in seconds between time sync updates issued to adapter.");
178
179 int check_interval = 24 * 60 * 60;
180 module_param(check_interval, int, S_IRUGO|S_IWUSR);
181 MODULE_PARM_DESC(check_interval, "Interval in seconds between adapter health checks.");
182
183 int aac_check_reset = 1;
184 module_param_named(check_reset, aac_check_reset, int, S_IRUGO|S_IWUSR);
185 MODULE_PARM_DESC(aac_check_reset, "If adapter fails health check, reset the adapter. a value of -1 forces the reset to adapters programmed to ignore it.");
186
187 int expose_physicals = -1;
188 module_param(expose_physicals, int, S_IRUGO|S_IWUSR);
189 MODULE_PARM_DESC(expose_physicals, "Expose physical components of the arrays. -1=protect 0=off, 1=on");
190
191 int aac_reset_devices = 0;
192 module_param_named(reset_devices, aac_reset_devices, int, S_IRUGO|S_IWUSR);
193 MODULE_PARM_DESC(reset_devices, "Force an adapter reset at initialization.");
194
195 static inline int aac_valid_context(struct scsi_cmnd *scsicmd,
196 struct fib *fibptr) {
197 struct scsi_device *device;
198
199 if (unlikely(!scsicmd || !scsicmd->scsi_done)) {
200 dprintk((KERN_WARNING "aac_valid_context: scsi command corrupt\n"));
201 aac_fib_complete(fibptr);
202 aac_fib_free(fibptr);
203 return 0;
204 }
205 scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
206 device = scsicmd->device;
207 if (unlikely(!device || !scsi_device_online(device))) {
208 dprintk((KERN_WARNING "aac_valid_context: scsi device corrupt\n"));
209 aac_fib_complete(fibptr);
210 aac_fib_free(fibptr);
211 return 0;
212 }
213 return 1;
214 }
215
216 /**
217 * aac_get_config_status - check the adapter configuration
218 * @common: adapter to query
219 *
220 * Query config status, and commit the configuration if needed.
221 */
222 int aac_get_config_status(struct aac_dev *dev, int commit_flag)
223 {
224 int status = 0;
225 struct fib * fibptr;
226
227 if (!(fibptr = aac_fib_alloc(dev)))
228 return -ENOMEM;
229
230 aac_fib_init(fibptr);
231 {
232 struct aac_get_config_status *dinfo;
233 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
234
235 dinfo->command = cpu_to_le32(VM_ContainerConfig);
236 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
237 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
238 }
239
240 status = aac_fib_send(ContainerCommand,
241 fibptr,
242 sizeof (struct aac_get_config_status),
243 FsaNormal,
244 1, 1,
245 NULL, NULL);
246 if (status < 0) {
247 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
248 } else {
249 struct aac_get_config_status_resp *reply
250 = (struct aac_get_config_status_resp *) fib_data(fibptr);
251 dprintk((KERN_WARNING
252 "aac_get_config_status: response=%d status=%d action=%d\n",
253 le32_to_cpu(reply->response),
254 le32_to_cpu(reply->status),
255 le32_to_cpu(reply->data.action)));
256 if ((le32_to_cpu(reply->response) != ST_OK) ||
257 (le32_to_cpu(reply->status) != CT_OK) ||
258 (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
259 printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
260 status = -EINVAL;
261 }
262 }
263 aac_fib_complete(fibptr);
264 /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
265 if (status >= 0) {
266 if ((aac_commit == 1) || commit_flag) {
267 struct aac_commit_config * dinfo;
268 aac_fib_init(fibptr);
269 dinfo = (struct aac_commit_config *) fib_data(fibptr);
270
271 dinfo->command = cpu_to_le32(VM_ContainerConfig);
272 dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
273
274 status = aac_fib_send(ContainerCommand,
275 fibptr,
276 sizeof (struct aac_commit_config),
277 FsaNormal,
278 1, 1,
279 NULL, NULL);
280 aac_fib_complete(fibptr);
281 } else if (aac_commit == 0) {
282 printk(KERN_WARNING
283 "aac_get_config_status: Foreign device configurations are being ignored\n");
284 }
285 }
286 aac_fib_free(fibptr);
287 return status;
288 }
289
290 /**
291 * aac_get_containers - list containers
292 * @common: adapter to probe
293 *
294 * Make a list of all containers on this controller
295 */
296 int aac_get_containers(struct aac_dev *dev)
297 {
298 struct fsa_dev_info *fsa_dev_ptr;
299 u32 index;
300 int status = 0;
301 struct fib * fibptr;
302 struct aac_get_container_count *dinfo;
303 struct aac_get_container_count_resp *dresp;
304 int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
305
306 if (!(fibptr = aac_fib_alloc(dev)))
307 return -ENOMEM;
308
309 aac_fib_init(fibptr);
310 dinfo = (struct aac_get_container_count *) fib_data(fibptr);
311 dinfo->command = cpu_to_le32(VM_ContainerConfig);
312 dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
313
314 status = aac_fib_send(ContainerCommand,
315 fibptr,
316 sizeof (struct aac_get_container_count),
317 FsaNormal,
318 1, 1,
319 NULL, NULL);
320 if (status >= 0) {
321 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
322 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
323 aac_fib_complete(fibptr);
324 }
325 aac_fib_free(fibptr);
326
327 if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
328 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
329 fsa_dev_ptr = kzalloc(sizeof(*fsa_dev_ptr) * maximum_num_containers,
330 GFP_KERNEL);
331 if (!fsa_dev_ptr)
332 return -ENOMEM;
333
334 dev->fsa_dev = fsa_dev_ptr;
335 dev->maximum_num_containers = maximum_num_containers;
336
337 for (index = 0; index < dev->maximum_num_containers; ) {
338 fsa_dev_ptr[index].devname[0] = '\0';
339
340 status = aac_probe_container(dev, index);
341
342 if (status < 0) {
343 printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
344 break;
345 }
346
347 /*
348 * If there are no more containers, then stop asking.
349 */
350 if (++index >= status)
351 break;
352 }
353 return status;
354 }
355
356 static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigned int offset, unsigned int len)
357 {
358 void *buf;
359 int transfer_len;
360 struct scatterlist *sg = scsi_sglist(scsicmd);
361
362 buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
363 transfer_len = min(sg->length, len + offset);
364
365 transfer_len -= offset;
366 if (buf && transfer_len > 0)
367 memcpy(buf + offset, data, transfer_len);
368
369 flush_kernel_dcache_page(kmap_atomic_to_page(buf - sg->offset));
370 kunmap_atomic(buf - sg->offset, KM_IRQ0);
371
372 }
373
374 static void get_container_name_callback(void *context, struct fib * fibptr)
375 {
376 struct aac_get_name_resp * get_name_reply;
377 struct scsi_cmnd * scsicmd;
378
379 scsicmd = (struct scsi_cmnd *) context;
380
381 if (!aac_valid_context(scsicmd, fibptr))
382 return;
383
384 dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
385 BUG_ON(fibptr == NULL);
386
387 get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
388 /* Failure is irrelevant, using default value instead */
389 if ((le32_to_cpu(get_name_reply->status) == CT_OK)
390 && (get_name_reply->data[0] != '\0')) {
391 char *sp = get_name_reply->data;
392 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
393 while (*sp == ' ')
394 ++sp;
395 if (*sp) {
396 char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
397 int count = sizeof(d);
398 char *dp = d;
399 do {
400 *dp++ = (*sp) ? *sp++ : ' ';
401 } while (--count > 0);
402 aac_internal_transfer(scsicmd, d,
403 offsetof(struct inquiry_data, inqd_pid), sizeof(d));
404 }
405 }
406
407 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
408
409 aac_fib_complete(fibptr);
410 aac_fib_free(fibptr);
411 scsicmd->scsi_done(scsicmd);
412 }
413
414 /**
415 * aac_get_container_name - get container name, none blocking.
416 */
417 static int aac_get_container_name(struct scsi_cmnd * scsicmd)
418 {
419 int status;
420 struct aac_get_name *dinfo;
421 struct fib * cmd_fibcontext;
422 struct aac_dev * dev;
423
424 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
425
426 if (!(cmd_fibcontext = aac_fib_alloc(dev)))
427 return -ENOMEM;
428
429 aac_fib_init(cmd_fibcontext);
430 dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
431
432 dinfo->command = cpu_to_le32(VM_ContainerConfig);
433 dinfo->type = cpu_to_le32(CT_READ_NAME);
434 dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
435 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
436
437 status = aac_fib_send(ContainerCommand,
438 cmd_fibcontext,
439 sizeof (struct aac_get_name),
440 FsaNormal,
441 0, 1,
442 (fib_callback)get_container_name_callback,
443 (void *) scsicmd);
444
445 /*
446 * Check that the command queued to the controller
447 */
448 if (status == -EINPROGRESS) {
449 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
450 return 0;
451 }
452
453 printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
454 aac_fib_complete(cmd_fibcontext);
455 aac_fib_free(cmd_fibcontext);
456 return -1;
457 }
458
459 static int aac_probe_container_callback2(struct scsi_cmnd * scsicmd)
460 {
461 struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
462
463 if ((fsa_dev_ptr[scmd_id(scsicmd)].valid & 1))
464 return aac_scsi_cmd(scsicmd);
465
466 scsicmd->result = DID_NO_CONNECT << 16;
467 scsicmd->scsi_done(scsicmd);
468 return 0;
469 }
470
471 static void _aac_probe_container2(void * context, struct fib * fibptr)
472 {
473 struct fsa_dev_info *fsa_dev_ptr;
474 int (*callback)(struct scsi_cmnd *);
475 struct scsi_cmnd * scsicmd = (struct scsi_cmnd *)context;
476
477
478 if (!aac_valid_context(scsicmd, fibptr))
479 return;
480
481 scsicmd->SCp.Status = 0;
482 fsa_dev_ptr = fibptr->dev->fsa_dev;
483 if (fsa_dev_ptr) {
484 struct aac_mount * dresp = (struct aac_mount *) fib_data(fibptr);
485 fsa_dev_ptr += scmd_id(scsicmd);
486
487 if ((le32_to_cpu(dresp->status) == ST_OK) &&
488 (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
489 (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
490 fsa_dev_ptr->valid = 1;
491 fsa_dev_ptr->type = le32_to_cpu(dresp->mnt[0].vol);
492 fsa_dev_ptr->size
493 = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
494 (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
495 fsa_dev_ptr->ro = ((le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) != 0);
496 }
497 if ((fsa_dev_ptr->valid & 1) == 0)
498 fsa_dev_ptr->valid = 0;
499 scsicmd->SCp.Status = le32_to_cpu(dresp->count);
500 }
501 aac_fib_complete(fibptr);
502 aac_fib_free(fibptr);
503 callback = (int (*)(struct scsi_cmnd *))(scsicmd->SCp.ptr);
504 scsicmd->SCp.ptr = NULL;
505 (*callback)(scsicmd);
506 return;
507 }
508
509 static void _aac_probe_container1(void * context, struct fib * fibptr)
510 {
511 struct scsi_cmnd * scsicmd;
512 struct aac_mount * dresp;
513 struct aac_query_mount *dinfo;
514 int status;
515
516 dresp = (struct aac_mount *) fib_data(fibptr);
517 dresp->mnt[0].capacityhigh = 0;
518 if ((le32_to_cpu(dresp->status) != ST_OK) ||
519 (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
520 _aac_probe_container2(context, fibptr);
521 return;
522 }
523 scsicmd = (struct scsi_cmnd *) context;
524
525 if (!aac_valid_context(scsicmd, fibptr))
526 return;
527
528 aac_fib_init(fibptr);
529
530 dinfo = (struct aac_query_mount *)fib_data(fibptr);
531
532 dinfo->command = cpu_to_le32(VM_NameServe64);
533 dinfo->count = cpu_to_le32(scmd_id(scsicmd));
534 dinfo->type = cpu_to_le32(FT_FILESYS);
535
536 status = aac_fib_send(ContainerCommand,
537 fibptr,
538 sizeof(struct aac_query_mount),
539 FsaNormal,
540 0, 1,
541 _aac_probe_container2,
542 (void *) scsicmd);
543 /*
544 * Check that the command queued to the controller
545 */
546 if (status == -EINPROGRESS)
547 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
548 else if (status < 0) {
549 /* Inherit results from VM_NameServe, if any */
550 dresp->status = cpu_to_le32(ST_OK);
551 _aac_probe_container2(context, fibptr);
552 }
553 }
554
555 static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(struct scsi_cmnd *))
556 {
557 struct fib * fibptr;
558 int status = -ENOMEM;
559
560 if ((fibptr = aac_fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata))) {
561 struct aac_query_mount *dinfo;
562
563 aac_fib_init(fibptr);
564
565 dinfo = (struct aac_query_mount *)fib_data(fibptr);
566
567 dinfo->command = cpu_to_le32(VM_NameServe);
568 dinfo->count = cpu_to_le32(scmd_id(scsicmd));
569 dinfo->type = cpu_to_le32(FT_FILESYS);
570 scsicmd->SCp.ptr = (char *)callback;
571
572 status = aac_fib_send(ContainerCommand,
573 fibptr,
574 sizeof(struct aac_query_mount),
575 FsaNormal,
576 0, 1,
577 _aac_probe_container1,
578 (void *) scsicmd);
579 /*
580 * Check that the command queued to the controller
581 */
582 if (status == -EINPROGRESS) {
583 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
584 return 0;
585 }
586 if (status < 0) {
587 scsicmd->SCp.ptr = NULL;
588 aac_fib_complete(fibptr);
589 aac_fib_free(fibptr);
590 }
591 }
592 if (status < 0) {
593 struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
594 if (fsa_dev_ptr) {
595 fsa_dev_ptr += scmd_id(scsicmd);
596 if ((fsa_dev_ptr->valid & 1) == 0) {
597 fsa_dev_ptr->valid = 0;
598 return (*callback)(scsicmd);
599 }
600 }
601 }
602 return status;
603 }
604
605 /**
606 * aac_probe_container - query a logical volume
607 * @dev: device to query
608 * @cid: container identifier
609 *
610 * Queries the controller about the given volume. The volume information
611 * is updated in the struct fsa_dev_info structure rather than returned.
612 */
613 static int aac_probe_container_callback1(struct scsi_cmnd * scsicmd)
614 {
615 scsicmd->device = NULL;
616 return 0;
617 }
618
619 int aac_probe_container(struct aac_dev *dev, int cid)
620 {
621 struct scsi_cmnd *scsicmd = kmalloc(sizeof(*scsicmd), GFP_KERNEL);
622 struct scsi_device *scsidev = kmalloc(sizeof(*scsidev), GFP_KERNEL);
623 int status;
624
625 if (!scsicmd || !scsidev) {
626 kfree(scsicmd);
627 kfree(scsidev);
628 return -ENOMEM;
629 }
630 scsicmd->list.next = NULL;
631 scsicmd->scsi_done = (void (*)(struct scsi_cmnd*))aac_probe_container_callback1;
632
633 scsicmd->device = scsidev;
634 scsidev->sdev_state = 0;
635 scsidev->id = cid;
636 scsidev->host = dev->scsi_host_ptr;
637
638 if (_aac_probe_container(scsicmd, aac_probe_container_callback1) == 0)
639 while (scsicmd->device == scsidev)
640 schedule();
641 kfree(scsidev);
642 status = scsicmd->SCp.Status;
643 kfree(scsicmd);
644 return status;
645 }
646
647 /* Local Structure to set SCSI inquiry data strings */
648 struct scsi_inq {
649 char vid[8]; /* Vendor ID */
650 char pid[16]; /* Product ID */
651 char prl[4]; /* Product Revision Level */
652 };
653
654 /**
655 * InqStrCopy - string merge
656 * @a: string to copy from
657 * @b: string to copy to
658 *
659 * Copy a String from one location to another
660 * without copying \0
661 */
662
663 static void inqstrcpy(char *a, char *b)
664 {
665
666 while (*a != (char)0)
667 *b++ = *a++;
668 }
669
670 static char *container_types[] = {
671 "None",
672 "Volume",
673 "Mirror",
674 "Stripe",
675 "RAID5",
676 "SSRW",
677 "SSRO",
678 "Morph",
679 "Legacy",
680 "RAID4",
681 "RAID10",
682 "RAID00",
683 "V-MIRRORS",
684 "PSEUDO R4",
685 "RAID50",
686 "RAID5D",
687 "RAID5D0",
688 "RAID1E",
689 "RAID6",
690 "RAID60",
691 "Unknown"
692 };
693
694 char * get_container_type(unsigned tindex)
695 {
696 if (tindex >= ARRAY_SIZE(container_types))
697 tindex = ARRAY_SIZE(container_types) - 1;
698 return container_types[tindex];
699 }
700
701 /* Function: setinqstr
702 *
703 * Arguments: [1] pointer to void [1] int
704 *
705 * Purpose: Sets SCSI inquiry data strings for vendor, product
706 * and revision level. Allows strings to be set in platform dependant
707 * files instead of in OS dependant driver source.
708 */
709
710 static void setinqstr(struct aac_dev *dev, void *data, int tindex)
711 {
712 struct scsi_inq *str;
713
714 str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
715 memset(str, ' ', sizeof(*str));
716
717 if (dev->supplement_adapter_info.AdapterTypeText[0]) {
718 char * cp = dev->supplement_adapter_info.AdapterTypeText;
719 int c;
720 if ((cp[0] == 'A') && (cp[1] == 'O') && (cp[2] == 'C'))
721 inqstrcpy("SMC", str->vid);
722 else {
723 c = sizeof(str->vid);
724 while (*cp && *cp != ' ' && --c)
725 ++cp;
726 c = *cp;
727 *cp = '\0';
728 inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
729 str->vid);
730 *cp = c;
731 while (*cp && *cp != ' ')
732 ++cp;
733 }
734 while (*cp == ' ')
735 ++cp;
736 /* last six chars reserved for vol type */
737 c = 0;
738 if (strlen(cp) > sizeof(str->pid)) {
739 c = cp[sizeof(str->pid)];
740 cp[sizeof(str->pid)] = '\0';
741 }
742 inqstrcpy (cp, str->pid);
743 if (c)
744 cp[sizeof(str->pid)] = c;
745 } else {
746 struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
747
748 inqstrcpy (mp->vname, str->vid);
749 /* last six chars reserved for vol type */
750 inqstrcpy (mp->model, str->pid);
751 }
752
753 if (tindex < ARRAY_SIZE(container_types)){
754 char *findit = str->pid;
755
756 for ( ; *findit != ' '; findit++); /* walk till we find a space */
757 /* RAID is superfluous in the context of a RAID device */
758 if (memcmp(findit-4, "RAID", 4) == 0)
759 *(findit -= 4) = ' ';
760 if (((findit - str->pid) + strlen(container_types[tindex]))
761 < (sizeof(str->pid) + sizeof(str->prl)))
762 inqstrcpy (container_types[tindex], findit + 1);
763 }
764 inqstrcpy ("V1.0", str->prl);
765 }
766
767 static void get_container_serial_callback(void *context, struct fib * fibptr)
768 {
769 struct aac_get_serial_resp * get_serial_reply;
770 struct scsi_cmnd * scsicmd;
771
772 BUG_ON(fibptr == NULL);
773
774 scsicmd = (struct scsi_cmnd *) context;
775 if (!aac_valid_context(scsicmd, fibptr))
776 return;
777
778 get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
779 /* Failure is irrelevant, using default value instead */
780 if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
781 char sp[13];
782 /* EVPD bit set */
783 sp[0] = INQD_PDT_DA;
784 sp[1] = scsicmd->cmnd[2];
785 sp[2] = 0;
786 sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
787 le32_to_cpu(get_serial_reply->uid));
788 aac_internal_transfer(scsicmd, sp, 0, sizeof(sp));
789 }
790
791 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
792
793 aac_fib_complete(fibptr);
794 aac_fib_free(fibptr);
795 scsicmd->scsi_done(scsicmd);
796 }
797
798 /**
799 * aac_get_container_serial - get container serial, none blocking.
800 */
801 static int aac_get_container_serial(struct scsi_cmnd * scsicmd)
802 {
803 int status;
804 struct aac_get_serial *dinfo;
805 struct fib * cmd_fibcontext;
806 struct aac_dev * dev;
807
808 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
809
810 if (!(cmd_fibcontext = aac_fib_alloc(dev)))
811 return -ENOMEM;
812
813 aac_fib_init(cmd_fibcontext);
814 dinfo = (struct aac_get_serial *) fib_data(cmd_fibcontext);
815
816 dinfo->command = cpu_to_le32(VM_ContainerConfig);
817 dinfo->type = cpu_to_le32(CT_CID_TO_32BITS_UID);
818 dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
819
820 status = aac_fib_send(ContainerCommand,
821 cmd_fibcontext,
822 sizeof (struct aac_get_serial),
823 FsaNormal,
824 0, 1,
825 (fib_callback) get_container_serial_callback,
826 (void *) scsicmd);
827
828 /*
829 * Check that the command queued to the controller
830 */
831 if (status == -EINPROGRESS) {
832 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
833 return 0;
834 }
835
836 printk(KERN_WARNING "aac_get_container_serial: aac_fib_send failed with status: %d.\n", status);
837 aac_fib_complete(cmd_fibcontext);
838 aac_fib_free(cmd_fibcontext);
839 return -1;
840 }
841
842 /* Function: setinqserial
843 *
844 * Arguments: [1] pointer to void [1] int
845 *
846 * Purpose: Sets SCSI Unit Serial number.
847 * This is a fake. We should read a proper
848 * serial number from the container. <SuSE>But
849 * without docs it's quite hard to do it :-)
850 * So this will have to do in the meantime.</SuSE>
851 */
852
853 static int setinqserial(struct aac_dev *dev, void *data, int cid)
854 {
855 /*
856 * This breaks array migration.
857 */
858 return snprintf((char *)(data), sizeof(struct scsi_inq) - 4, "%08X%02X",
859 le32_to_cpu(dev->adapter_info.serial[0]), cid);
860 }
861
862 static void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
863 u8 a_sense_code, u8 incorrect_length,
864 u8 bit_pointer, u16 field_pointer,
865 u32 residue)
866 {
867 sense_buf[0] = 0xF0; /* Sense data valid, err code 70h (current error) */
868 sense_buf[1] = 0; /* Segment number, always zero */
869
870 if (incorrect_length) {
871 sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
872 sense_buf[3] = BYTE3(residue);
873 sense_buf[4] = BYTE2(residue);
874 sense_buf[5] = BYTE1(residue);
875 sense_buf[6] = BYTE0(residue);
876 } else
877 sense_buf[2] = sense_key; /* Sense key */
878
879 if (sense_key == ILLEGAL_REQUEST)
880 sense_buf[7] = 10; /* Additional sense length */
881 else
882 sense_buf[7] = 6; /* Additional sense length */
883
884 sense_buf[12] = sense_code; /* Additional sense code */
885 sense_buf[13] = a_sense_code; /* Additional sense code qualifier */
886 if (sense_key == ILLEGAL_REQUEST) {
887 sense_buf[15] = 0;
888
889 if (sense_code == SENCODE_INVALID_PARAM_FIELD)
890 sense_buf[15] = 0x80;/* Std sense key specific field */
891 /* Illegal parameter is in the parameter block */
892
893 if (sense_code == SENCODE_INVALID_CDB_FIELD)
894 sense_buf[15] = 0xc0;/* Std sense key specific field */
895 /* Illegal parameter is in the CDB block */
896 sense_buf[15] |= bit_pointer;
897 sense_buf[16] = field_pointer >> 8; /* MSB */
898 sense_buf[17] = field_pointer; /* LSB */
899 }
900 }
901
902 static int aac_bounds_32(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
903 {
904 if (lba & 0xffffffff00000000LL) {
905 int cid = scmd_id(cmd);
906 dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
907 cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
908 SAM_STAT_CHECK_CONDITION;
909 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
910 HARDWARE_ERROR,
911 SENCODE_INTERNAL_TARGET_FAILURE,
912 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
913 0, 0);
914 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
915 min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
916 SCSI_SENSE_BUFFERSIZE));
917 cmd->scsi_done(cmd);
918 return 1;
919 }
920 return 0;
921 }
922
923 static int aac_bounds_64(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
924 {
925 return 0;
926 }
927
928 static void io_callback(void *context, struct fib * fibptr);
929
930 static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
931 {
932 u16 fibsize;
933 struct aac_raw_io *readcmd;
934 aac_fib_init(fib);
935 readcmd = (struct aac_raw_io *) fib_data(fib);
936 readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
937 readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
938 readcmd->count = cpu_to_le32(count<<9);
939 readcmd->cid = cpu_to_le16(scmd_id(cmd));
940 readcmd->flags = cpu_to_le16(IO_TYPE_READ);
941 readcmd->bpTotal = 0;
942 readcmd->bpComplete = 0;
943
944 aac_build_sgraw(cmd, &readcmd->sg);
945 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
946 BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
947 /*
948 * Now send the Fib to the adapter
949 */
950 return aac_fib_send(ContainerRawIo,
951 fib,
952 fibsize,
953 FsaNormal,
954 0, 1,
955 (fib_callback) io_callback,
956 (void *) cmd);
957 }
958
959 static int aac_read_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
960 {
961 u16 fibsize;
962 struct aac_read64 *readcmd;
963 aac_fib_init(fib);
964 readcmd = (struct aac_read64 *) fib_data(fib);
965 readcmd->command = cpu_to_le32(VM_CtHostRead64);
966 readcmd->cid = cpu_to_le16(scmd_id(cmd));
967 readcmd->sector_count = cpu_to_le16(count);
968 readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
969 readcmd->pad = 0;
970 readcmd->flags = 0;
971
972 aac_build_sg64(cmd, &readcmd->sg);
973 fibsize = sizeof(struct aac_read64) +
974 ((le32_to_cpu(readcmd->sg.count) - 1) *
975 sizeof (struct sgentry64));
976 BUG_ON (fibsize > (fib->dev->max_fib_size -
977 sizeof(struct aac_fibhdr)));
978 /*
979 * Now send the Fib to the adapter
980 */
981 return aac_fib_send(ContainerCommand64,
982 fib,
983 fibsize,
984 FsaNormal,
985 0, 1,
986 (fib_callback) io_callback,
987 (void *) cmd);
988 }
989
990 static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
991 {
992 u16 fibsize;
993 struct aac_read *readcmd;
994 aac_fib_init(fib);
995 readcmd = (struct aac_read *) fib_data(fib);
996 readcmd->command = cpu_to_le32(VM_CtBlockRead);
997 readcmd->cid = cpu_to_le32(scmd_id(cmd));
998 readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
999 readcmd->count = cpu_to_le32(count * 512);
1000
1001 aac_build_sg(cmd, &readcmd->sg);
1002 fibsize = sizeof(struct aac_read) +
1003 ((le32_to_cpu(readcmd->sg.count) - 1) *
1004 sizeof (struct sgentry));
1005 BUG_ON (fibsize > (fib->dev->max_fib_size -
1006 sizeof(struct aac_fibhdr)));
1007 /*
1008 * Now send the Fib to the adapter
1009 */
1010 return aac_fib_send(ContainerCommand,
1011 fib,
1012 fibsize,
1013 FsaNormal,
1014 0, 1,
1015 (fib_callback) io_callback,
1016 (void *) cmd);
1017 }
1018
1019 static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1020 {
1021 u16 fibsize;
1022 struct aac_raw_io *writecmd;
1023 aac_fib_init(fib);
1024 writecmd = (struct aac_raw_io *) fib_data(fib);
1025 writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1026 writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1027 writecmd->count = cpu_to_le32(count<<9);
1028 writecmd->cid = cpu_to_le16(scmd_id(cmd));
1029 writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
1030 (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
1031 cpu_to_le16(IO_TYPE_WRITE|IO_SUREWRITE) :
1032 cpu_to_le16(IO_TYPE_WRITE);
1033 writecmd->bpTotal = 0;
1034 writecmd->bpComplete = 0;
1035
1036 aac_build_sgraw(cmd, &writecmd->sg);
1037 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1038 BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
1039 /*
1040 * Now send the Fib to the adapter
1041 */
1042 return aac_fib_send(ContainerRawIo,
1043 fib,
1044 fibsize,
1045 FsaNormal,
1046 0, 1,
1047 (fib_callback) io_callback,
1048 (void *) cmd);
1049 }
1050
1051 static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1052 {
1053 u16 fibsize;
1054 struct aac_write64 *writecmd;
1055 aac_fib_init(fib);
1056 writecmd = (struct aac_write64 *) fib_data(fib);
1057 writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1058 writecmd->cid = cpu_to_le16(scmd_id(cmd));
1059 writecmd->sector_count = cpu_to_le16(count);
1060 writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1061 writecmd->pad = 0;
1062 writecmd->flags = 0;
1063
1064 aac_build_sg64(cmd, &writecmd->sg);
1065 fibsize = sizeof(struct aac_write64) +
1066 ((le32_to_cpu(writecmd->sg.count) - 1) *
1067 sizeof (struct sgentry64));
1068 BUG_ON (fibsize > (fib->dev->max_fib_size -
1069 sizeof(struct aac_fibhdr)));
1070 /*
1071 * Now send the Fib to the adapter
1072 */
1073 return aac_fib_send(ContainerCommand64,
1074 fib,
1075 fibsize,
1076 FsaNormal,
1077 0, 1,
1078 (fib_callback) io_callback,
1079 (void *) cmd);
1080 }
1081
1082 static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1083 {
1084 u16 fibsize;
1085 struct aac_write *writecmd;
1086 aac_fib_init(fib);
1087 writecmd = (struct aac_write *) fib_data(fib);
1088 writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1089 writecmd->cid = cpu_to_le32(scmd_id(cmd));
1090 writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1091 writecmd->count = cpu_to_le32(count * 512);
1092 writecmd->sg.count = cpu_to_le32(1);
1093 /* ->stable is not used - it did mean which type of write */
1094
1095 aac_build_sg(cmd, &writecmd->sg);
1096 fibsize = sizeof(struct aac_write) +
1097 ((le32_to_cpu(writecmd->sg.count) - 1) *
1098 sizeof (struct sgentry));
1099 BUG_ON (fibsize > (fib->dev->max_fib_size -
1100 sizeof(struct aac_fibhdr)));
1101 /*
1102 * Now send the Fib to the adapter
1103 */
1104 return aac_fib_send(ContainerCommand,
1105 fib,
1106 fibsize,
1107 FsaNormal,
1108 0, 1,
1109 (fib_callback) io_callback,
1110 (void *) cmd);
1111 }
1112
1113 static struct aac_srb * aac_scsi_common(struct fib * fib, struct scsi_cmnd * cmd)
1114 {
1115 struct aac_srb * srbcmd;
1116 u32 flag;
1117 u32 timeout;
1118
1119 aac_fib_init(fib);
1120 switch(cmd->sc_data_direction){
1121 case DMA_TO_DEVICE:
1122 flag = SRB_DataOut;
1123 break;
1124 case DMA_BIDIRECTIONAL:
1125 flag = SRB_DataIn | SRB_DataOut;
1126 break;
1127 case DMA_FROM_DEVICE:
1128 flag = SRB_DataIn;
1129 break;
1130 case DMA_NONE:
1131 default: /* shuts up some versions of gcc */
1132 flag = SRB_NoDataXfer;
1133 break;
1134 }
1135
1136 srbcmd = (struct aac_srb*) fib_data(fib);
1137 srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1138 srbcmd->channel = cpu_to_le32(aac_logical_to_phys(scmd_channel(cmd)));
1139 srbcmd->id = cpu_to_le32(scmd_id(cmd));
1140 srbcmd->lun = cpu_to_le32(cmd->device->lun);
1141 srbcmd->flags = cpu_to_le32(flag);
1142 timeout = cmd->timeout_per_command/HZ;
1143 if (timeout == 0)
1144 timeout = 1;
1145 srbcmd->timeout = cpu_to_le32(timeout); // timeout in seconds
1146 srbcmd->retry_limit = 0; /* Obsolete parameter */
1147 srbcmd->cdb_size = cpu_to_le32(cmd->cmd_len);
1148 return srbcmd;
1149 }
1150
1151 static void aac_srb_callback(void *context, struct fib * fibptr);
1152
1153 static int aac_scsi_64(struct fib * fib, struct scsi_cmnd * cmd)
1154 {
1155 u16 fibsize;
1156 struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1157
1158 aac_build_sg64(cmd, (struct sgmap64*) &srbcmd->sg);
1159 srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1160
1161 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1162 memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1163 /*
1164 * Build Scatter/Gather list
1165 */
1166 fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
1167 ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
1168 sizeof (struct sgentry64));
1169 BUG_ON (fibsize > (fib->dev->max_fib_size -
1170 sizeof(struct aac_fibhdr)));
1171
1172 /*
1173 * Now send the Fib to the adapter
1174 */
1175 return aac_fib_send(ScsiPortCommand64, fib,
1176 fibsize, FsaNormal, 0, 1,
1177 (fib_callback) aac_srb_callback,
1178 (void *) cmd);
1179 }
1180
1181 static int aac_scsi_32(struct fib * fib, struct scsi_cmnd * cmd)
1182 {
1183 u16 fibsize;
1184 struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1185
1186 aac_build_sg(cmd, (struct sgmap*)&srbcmd->sg);
1187 srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1188
1189 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1190 memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1191 /*
1192 * Build Scatter/Gather list
1193 */
1194 fibsize = sizeof (struct aac_srb) +
1195 (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
1196 sizeof (struct sgentry));
1197 BUG_ON (fibsize > (fib->dev->max_fib_size -
1198 sizeof(struct aac_fibhdr)));
1199
1200 /*
1201 * Now send the Fib to the adapter
1202 */
1203 return aac_fib_send(ScsiPortCommand, fib, fibsize, FsaNormal, 0, 1,
1204 (fib_callback) aac_srb_callback, (void *) cmd);
1205 }
1206
1207 static int aac_scsi_32_64(struct fib * fib, struct scsi_cmnd * cmd)
1208 {
1209 if ((sizeof(dma_addr_t) > 4) &&
1210 (num_physpages > (0xFFFFFFFFULL >> PAGE_SHIFT)) &&
1211 (fib->dev->adapter_info.options & AAC_OPT_SGMAP_HOST64))
1212 return FAILED;
1213 return aac_scsi_32(fib, cmd);
1214 }
1215
1216 int aac_get_adapter_info(struct aac_dev* dev)
1217 {
1218 struct fib* fibptr;
1219 int rcode;
1220 u32 tmp;
1221 struct aac_adapter_info *info;
1222 struct aac_bus_info *command;
1223 struct aac_bus_info_response *bus_info;
1224
1225 if (!(fibptr = aac_fib_alloc(dev)))
1226 return -ENOMEM;
1227
1228 aac_fib_init(fibptr);
1229 info = (struct aac_adapter_info *) fib_data(fibptr);
1230 memset(info,0,sizeof(*info));
1231
1232 rcode = aac_fib_send(RequestAdapterInfo,
1233 fibptr,
1234 sizeof(*info),
1235 FsaNormal,
1236 -1, 1, /* First `interrupt' command uses special wait */
1237 NULL,
1238 NULL);
1239
1240 if (rcode < 0) {
1241 aac_fib_complete(fibptr);
1242 aac_fib_free(fibptr);
1243 return rcode;
1244 }
1245 memcpy(&dev->adapter_info, info, sizeof(*info));
1246
1247 if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
1248 struct aac_supplement_adapter_info * sinfo;
1249
1250 aac_fib_init(fibptr);
1251
1252 sinfo = (struct aac_supplement_adapter_info *) fib_data(fibptr);
1253
1254 memset(sinfo,0,sizeof(*sinfo));
1255
1256 rcode = aac_fib_send(RequestSupplementAdapterInfo,
1257 fibptr,
1258 sizeof(*sinfo),
1259 FsaNormal,
1260 1, 1,
1261 NULL,
1262 NULL);
1263
1264 if (rcode >= 0)
1265 memcpy(&dev->supplement_adapter_info, sinfo, sizeof(*sinfo));
1266 }
1267
1268
1269 /*
1270 * GetBusInfo
1271 */
1272
1273 aac_fib_init(fibptr);
1274
1275 bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
1276
1277 memset(bus_info, 0, sizeof(*bus_info));
1278
1279 command = (struct aac_bus_info *)bus_info;
1280
1281 command->Command = cpu_to_le32(VM_Ioctl);
1282 command->ObjType = cpu_to_le32(FT_DRIVE);
1283 command->MethodId = cpu_to_le32(1);
1284 command->CtlCmd = cpu_to_le32(GetBusInfo);
1285
1286 rcode = aac_fib_send(ContainerCommand,
1287 fibptr,
1288 sizeof (*bus_info),
1289 FsaNormal,
1290 1, 1,
1291 NULL, NULL);
1292
1293 /* reasoned default */
1294 dev->maximum_num_physicals = 16;
1295 if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
1296 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
1297 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
1298 }
1299
1300 if (!dev->in_reset) {
1301 char buffer[16];
1302 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
1303 printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
1304 dev->name,
1305 dev->id,
1306 tmp>>24,
1307 (tmp>>16)&0xff,
1308 tmp&0xff,
1309 le32_to_cpu(dev->adapter_info.kernelbuild),
1310 (int)sizeof(dev->supplement_adapter_info.BuildDate),
1311 dev->supplement_adapter_info.BuildDate);
1312 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
1313 printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
1314 dev->name, dev->id,
1315 tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1316 le32_to_cpu(dev->adapter_info.monitorbuild));
1317 tmp = le32_to_cpu(dev->adapter_info.biosrev);
1318 printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
1319 dev->name, dev->id,
1320 tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1321 le32_to_cpu(dev->adapter_info.biosbuild));
1322 buffer[0] = '\0';
1323 if (aac_show_serial_number(
1324 shost_to_class(dev->scsi_host_ptr), buffer))
1325 printk(KERN_INFO "%s%d: serial %s",
1326 dev->name, dev->id, buffer);
1327 if (dev->supplement_adapter_info.VpdInfo.Tsid[0]) {
1328 printk(KERN_INFO "%s%d: TSID %.*s\n",
1329 dev->name, dev->id,
1330 (int)sizeof(dev->supplement_adapter_info.VpdInfo.Tsid),
1331 dev->supplement_adapter_info.VpdInfo.Tsid);
1332 }
1333 if (!aac_check_reset || ((aac_check_reset != 1) &&
1334 (dev->supplement_adapter_info.SupportedOptions2 &
1335 AAC_OPTION_IGNORE_RESET))) {
1336 printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
1337 dev->name, dev->id);
1338 }
1339 }
1340
1341 dev->cache_protected = 0;
1342 dev->jbod = ((dev->supplement_adapter_info.FeatureBits &
1343 AAC_FEATURE_JBOD) != 0);
1344 dev->nondasd_support = 0;
1345 dev->raid_scsi_mode = 0;
1346 if(dev->adapter_info.options & AAC_OPT_NONDASD)
1347 dev->nondasd_support = 1;
1348
1349 /*
1350 * If the firmware supports ROMB RAID/SCSI mode and we are currently
1351 * in RAID/SCSI mode, set the flag. For now if in this mode we will
1352 * force nondasd support on. If we decide to allow the non-dasd flag
1353 * additional changes changes will have to be made to support
1354 * RAID/SCSI. the function aac_scsi_cmd in this module will have to be
1355 * changed to support the new dev->raid_scsi_mode flag instead of
1356 * leaching off of the dev->nondasd_support flag. Also in linit.c the
1357 * function aac_detect will have to be modified where it sets up the
1358 * max number of channels based on the aac->nondasd_support flag only.
1359 */
1360 if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
1361 (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
1362 dev->nondasd_support = 1;
1363 dev->raid_scsi_mode = 1;
1364 }
1365 if (dev->raid_scsi_mode != 0)
1366 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
1367 dev->name, dev->id);
1368
1369 if (nondasd != -1)
1370 dev->nondasd_support = (nondasd!=0);
1371 if(dev->nondasd_support != 0) {
1372 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
1373 }
1374
1375 dev->dac_support = 0;
1376 if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
1377 printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id);
1378 dev->dac_support = 1;
1379 }
1380
1381 if(dacmode != -1) {
1382 dev->dac_support = (dacmode!=0);
1383 }
1384 if(dev->dac_support != 0) {
1385 if (!pci_set_dma_mask(dev->pdev, DMA_64BIT_MASK) &&
1386 !pci_set_consistent_dma_mask(dev->pdev, DMA_64BIT_MASK)) {
1387 printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
1388 dev->name, dev->id);
1389 } else if (!pci_set_dma_mask(dev->pdev, DMA_32BIT_MASK) &&
1390 !pci_set_consistent_dma_mask(dev->pdev, DMA_32BIT_MASK)) {
1391 printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
1392 dev->name, dev->id);
1393 dev->dac_support = 0;
1394 } else {
1395 printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
1396 dev->name, dev->id);
1397 rcode = -ENOMEM;
1398 }
1399 }
1400 /*
1401 * Deal with configuring for the individualized limits of each packet
1402 * interface.
1403 */
1404 dev->a_ops.adapter_scsi = (dev->dac_support)
1405 ? ((aac_get_driver_ident(dev->cardtype)->quirks & AAC_QUIRK_SCSI_32)
1406 ? aac_scsi_32_64
1407 : aac_scsi_64)
1408 : aac_scsi_32;
1409 if (dev->raw_io_interface) {
1410 dev->a_ops.adapter_bounds = (dev->raw_io_64)
1411 ? aac_bounds_64
1412 : aac_bounds_32;
1413 dev->a_ops.adapter_read = aac_read_raw_io;
1414 dev->a_ops.adapter_write = aac_write_raw_io;
1415 } else {
1416 dev->a_ops.adapter_bounds = aac_bounds_32;
1417 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
1418 sizeof(struct aac_fibhdr) -
1419 sizeof(struct aac_write) + sizeof(struct sgentry)) /
1420 sizeof(struct sgentry);
1421 if (dev->dac_support) {
1422 dev->a_ops.adapter_read = aac_read_block64;
1423 dev->a_ops.adapter_write = aac_write_block64;
1424 /*
1425 * 38 scatter gather elements
1426 */
1427 dev->scsi_host_ptr->sg_tablesize =
1428 (dev->max_fib_size -
1429 sizeof(struct aac_fibhdr) -
1430 sizeof(struct aac_write64) +
1431 sizeof(struct sgentry64)) /
1432 sizeof(struct sgentry64);
1433 } else {
1434 dev->a_ops.adapter_read = aac_read_block;
1435 dev->a_ops.adapter_write = aac_write_block;
1436 }
1437 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
1438 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
1439 /*
1440 * Worst case size that could cause sg overflow when
1441 * we break up SG elements that are larger than 64KB.
1442 * Would be nice if we could tell the SCSI layer what
1443 * the maximum SG element size can be. Worst case is
1444 * (sg_tablesize-1) 4KB elements with one 64KB
1445 * element.
1446 * 32bit -> 468 or 238KB 64bit -> 424 or 212KB
1447 */
1448 dev->scsi_host_ptr->max_sectors =
1449 (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
1450 }
1451 }
1452
1453 aac_fib_complete(fibptr);
1454 aac_fib_free(fibptr);
1455
1456 return rcode;
1457 }
1458
1459
1460 static void io_callback(void *context, struct fib * fibptr)
1461 {
1462 struct aac_dev *dev;
1463 struct aac_read_reply *readreply;
1464 struct scsi_cmnd *scsicmd;
1465 u32 cid;
1466
1467 scsicmd = (struct scsi_cmnd *) context;
1468
1469 if (!aac_valid_context(scsicmd, fibptr))
1470 return;
1471
1472 dev = fibptr->dev;
1473 cid = scmd_id(scsicmd);
1474
1475 if (nblank(dprintk(x))) {
1476 u64 lba;
1477 switch (scsicmd->cmnd[0]) {
1478 case WRITE_6:
1479 case READ_6:
1480 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1481 (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1482 break;
1483 case WRITE_16:
1484 case READ_16:
1485 lba = ((u64)scsicmd->cmnd[2] << 56) |
1486 ((u64)scsicmd->cmnd[3] << 48) |
1487 ((u64)scsicmd->cmnd[4] << 40) |
1488 ((u64)scsicmd->cmnd[5] << 32) |
1489 ((u64)scsicmd->cmnd[6] << 24) |
1490 (scsicmd->cmnd[7] << 16) |
1491 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1492 break;
1493 case WRITE_12:
1494 case READ_12:
1495 lba = ((u64)scsicmd->cmnd[2] << 24) |
1496 (scsicmd->cmnd[3] << 16) |
1497 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1498 break;
1499 default:
1500 lba = ((u64)scsicmd->cmnd[2] << 24) |
1501 (scsicmd->cmnd[3] << 16) |
1502 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1503 break;
1504 }
1505 printk(KERN_DEBUG
1506 "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
1507 smp_processor_id(), (unsigned long long)lba, jiffies);
1508 }
1509
1510 BUG_ON(fibptr == NULL);
1511
1512 scsi_dma_unmap(scsicmd);
1513
1514 readreply = (struct aac_read_reply *)fib_data(fibptr);
1515 if (le32_to_cpu(readreply->status) == ST_OK)
1516 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1517 else {
1518 #ifdef AAC_DETAILED_STATUS_INFO
1519 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
1520 le32_to_cpu(readreply->status));
1521 #endif
1522 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1523 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1524 HARDWARE_ERROR,
1525 SENCODE_INTERNAL_TARGET_FAILURE,
1526 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1527 0, 0);
1528 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1529 min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1530 SCSI_SENSE_BUFFERSIZE));
1531 }
1532 aac_fib_complete(fibptr);
1533 aac_fib_free(fibptr);
1534
1535 scsicmd->scsi_done(scsicmd);
1536 }
1537
1538 static int aac_read(struct scsi_cmnd * scsicmd)
1539 {
1540 u64 lba;
1541 u32 count;
1542 int status;
1543 struct aac_dev *dev;
1544 struct fib * cmd_fibcontext;
1545
1546 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1547 /*
1548 * Get block address and transfer length
1549 */
1550 switch (scsicmd->cmnd[0]) {
1551 case READ_6:
1552 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", scmd_id(scsicmd)));
1553
1554 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1555 (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1556 count = scsicmd->cmnd[4];
1557
1558 if (count == 0)
1559 count = 256;
1560 break;
1561 case READ_16:
1562 dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", scmd_id(scsicmd)));
1563
1564 lba = ((u64)scsicmd->cmnd[2] << 56) |
1565 ((u64)scsicmd->cmnd[3] << 48) |
1566 ((u64)scsicmd->cmnd[4] << 40) |
1567 ((u64)scsicmd->cmnd[5] << 32) |
1568 ((u64)scsicmd->cmnd[6] << 24) |
1569 (scsicmd->cmnd[7] << 16) |
1570 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1571 count = (scsicmd->cmnd[10] << 24) |
1572 (scsicmd->cmnd[11] << 16) |
1573 (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1574 break;
1575 case READ_12:
1576 dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", scmd_id(scsicmd)));
1577
1578 lba = ((u64)scsicmd->cmnd[2] << 24) |
1579 (scsicmd->cmnd[3] << 16) |
1580 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1581 count = (scsicmd->cmnd[6] << 24) |
1582 (scsicmd->cmnd[7] << 16) |
1583 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1584 break;
1585 default:
1586 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", scmd_id(scsicmd)));
1587
1588 lba = ((u64)scsicmd->cmnd[2] << 24) |
1589 (scsicmd->cmnd[3] << 16) |
1590 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1591 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1592 break;
1593 }
1594 dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
1595 smp_processor_id(), (unsigned long long)lba, jiffies));
1596 if (aac_adapter_bounds(dev,scsicmd,lba))
1597 return 0;
1598 /*
1599 * Alocate and initialize a Fib
1600 */
1601 if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1602 return -1;
1603 }
1604
1605 status = aac_adapter_read(cmd_fibcontext, scsicmd, lba, count);
1606
1607 /*
1608 * Check that the command queued to the controller
1609 */
1610 if (status == -EINPROGRESS) {
1611 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1612 return 0;
1613 }
1614
1615 printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
1616 /*
1617 * For some reason, the Fib didn't queue, return QUEUE_FULL
1618 */
1619 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1620 scsicmd->scsi_done(scsicmd);
1621 aac_fib_complete(cmd_fibcontext);
1622 aac_fib_free(cmd_fibcontext);
1623 return 0;
1624 }
1625
1626 static int aac_write(struct scsi_cmnd * scsicmd)
1627 {
1628 u64 lba;
1629 u32 count;
1630 int fua;
1631 int status;
1632 struct aac_dev *dev;
1633 struct fib * cmd_fibcontext;
1634
1635 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1636 /*
1637 * Get block address and transfer length
1638 */
1639 if (scsicmd->cmnd[0] == WRITE_6) /* 6 byte command */
1640 {
1641 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1642 count = scsicmd->cmnd[4];
1643 if (count == 0)
1644 count = 256;
1645 fua = 0;
1646 } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
1647 dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", scmd_id(scsicmd)));
1648
1649 lba = ((u64)scsicmd->cmnd[2] << 56) |
1650 ((u64)scsicmd->cmnd[3] << 48) |
1651 ((u64)scsicmd->cmnd[4] << 40) |
1652 ((u64)scsicmd->cmnd[5] << 32) |
1653 ((u64)scsicmd->cmnd[6] << 24) |
1654 (scsicmd->cmnd[7] << 16) |
1655 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1656 count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
1657 (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1658 fua = scsicmd->cmnd[1] & 0x8;
1659 } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
1660 dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", scmd_id(scsicmd)));
1661
1662 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
1663 | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1664 count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
1665 | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1666 fua = scsicmd->cmnd[1] & 0x8;
1667 } else {
1668 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", scmd_id(scsicmd)));
1669 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1670 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1671 fua = scsicmd->cmnd[1] & 0x8;
1672 }
1673 dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
1674 smp_processor_id(), (unsigned long long)lba, jiffies));
1675 if (aac_adapter_bounds(dev,scsicmd,lba))
1676 return 0;
1677 /*
1678 * Allocate and initialize a Fib then setup a BlockWrite command
1679 */
1680 if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1681 scsicmd->result = DID_ERROR << 16;
1682 scsicmd->scsi_done(scsicmd);
1683 return 0;
1684 }
1685
1686 status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua);
1687
1688 /*
1689 * Check that the command queued to the controller
1690 */
1691 if (status == -EINPROGRESS) {
1692 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1693 return 0;
1694 }
1695
1696 printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
1697 /*
1698 * For some reason, the Fib didn't queue, return QUEUE_FULL
1699 */
1700 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1701 scsicmd->scsi_done(scsicmd);
1702
1703 aac_fib_complete(cmd_fibcontext);
1704 aac_fib_free(cmd_fibcontext);
1705 return 0;
1706 }
1707
1708 static void synchronize_callback(void *context, struct fib *fibptr)
1709 {
1710 struct aac_synchronize_reply *synchronizereply;
1711 struct scsi_cmnd *cmd;
1712
1713 cmd = context;
1714
1715 if (!aac_valid_context(cmd, fibptr))
1716 return;
1717
1718 dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1719 smp_processor_id(), jiffies));
1720 BUG_ON(fibptr == NULL);
1721
1722
1723 synchronizereply = fib_data(fibptr);
1724 if (le32_to_cpu(synchronizereply->status) == CT_OK)
1725 cmd->result = DID_OK << 16 |
1726 COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1727 else {
1728 struct scsi_device *sdev = cmd->device;
1729 struct aac_dev *dev = fibptr->dev;
1730 u32 cid = sdev_id(sdev);
1731 printk(KERN_WARNING
1732 "synchronize_callback: synchronize failed, status = %d\n",
1733 le32_to_cpu(synchronizereply->status));
1734 cmd->result = DID_OK << 16 |
1735 COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1736 set_sense((u8 *)&dev->fsa_dev[cid].sense_data,
1737 HARDWARE_ERROR,
1738 SENCODE_INTERNAL_TARGET_FAILURE,
1739 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1740 0, 0);
1741 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1742 min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1743 SCSI_SENSE_BUFFERSIZE));
1744 }
1745
1746 aac_fib_complete(fibptr);
1747 aac_fib_free(fibptr);
1748 cmd->scsi_done(cmd);
1749 }
1750
1751 static int aac_synchronize(struct scsi_cmnd *scsicmd)
1752 {
1753 int status;
1754 struct fib *cmd_fibcontext;
1755 struct aac_synchronize *synchronizecmd;
1756 struct scsi_cmnd *cmd;
1757 struct scsi_device *sdev = scsicmd->device;
1758 int active = 0;
1759 struct aac_dev *aac;
1760 u64 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) |
1761 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1762 u32 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1763 unsigned long flags;
1764
1765 /*
1766 * Wait for all outstanding queued commands to complete to this
1767 * specific target (block).
1768 */
1769 spin_lock_irqsave(&sdev->list_lock, flags);
1770 list_for_each_entry(cmd, &sdev->cmd_list, list)
1771 if (cmd->SCp.phase == AAC_OWNER_FIRMWARE) {
1772 u64 cmnd_lba;
1773 u32 cmnd_count;
1774
1775 if (cmd->cmnd[0] == WRITE_6) {
1776 cmnd_lba = ((cmd->cmnd[1] & 0x1F) << 16) |
1777 (cmd->cmnd[2] << 8) |
1778 cmd->cmnd[3];
1779 cmnd_count = cmd->cmnd[4];
1780 if (cmnd_count == 0)
1781 cmnd_count = 256;
1782 } else if (cmd->cmnd[0] == WRITE_16) {
1783 cmnd_lba = ((u64)cmd->cmnd[2] << 56) |
1784 ((u64)cmd->cmnd[3] << 48) |
1785 ((u64)cmd->cmnd[4] << 40) |
1786 ((u64)cmd->cmnd[5] << 32) |
1787 ((u64)cmd->cmnd[6] << 24) |
1788 (cmd->cmnd[7] << 16) |
1789 (cmd->cmnd[8] << 8) |
1790 cmd->cmnd[9];
1791 cmnd_count = (cmd->cmnd[10] << 24) |
1792 (cmd->cmnd[11] << 16) |
1793 (cmd->cmnd[12] << 8) |
1794 cmd->cmnd[13];
1795 } else if (cmd->cmnd[0] == WRITE_12) {
1796 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1797 (cmd->cmnd[3] << 16) |
1798 (cmd->cmnd[4] << 8) |
1799 cmd->cmnd[5];
1800 cmnd_count = (cmd->cmnd[6] << 24) |
1801 (cmd->cmnd[7] << 16) |
1802 (cmd->cmnd[8] << 8) |
1803 cmd->cmnd[9];
1804 } else if (cmd->cmnd[0] == WRITE_10) {
1805 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1806 (cmd->cmnd[3] << 16) |
1807 (cmd->cmnd[4] << 8) |
1808 cmd->cmnd[5];
1809 cmnd_count = (cmd->cmnd[7] << 8) |
1810 cmd->cmnd[8];
1811 } else
1812 continue;
1813 if (((cmnd_lba + cmnd_count) < lba) ||
1814 (count && ((lba + count) < cmnd_lba)))
1815 continue;
1816 ++active;
1817 break;
1818 }
1819
1820 spin_unlock_irqrestore(&sdev->list_lock, flags);
1821
1822 /*
1823 * Yield the processor (requeue for later)
1824 */
1825 if (active)
1826 return SCSI_MLQUEUE_DEVICE_BUSY;
1827
1828 aac = (struct aac_dev *)sdev->host->hostdata;
1829 if (aac->in_reset)
1830 return SCSI_MLQUEUE_HOST_BUSY;
1831
1832 /*
1833 * Allocate and initialize a Fib
1834 */
1835 if (!(cmd_fibcontext = aac_fib_alloc(aac)))
1836 return SCSI_MLQUEUE_HOST_BUSY;
1837
1838 aac_fib_init(cmd_fibcontext);
1839
1840 synchronizecmd = fib_data(cmd_fibcontext);
1841 synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1842 synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1843 synchronizecmd->cid = cpu_to_le32(scmd_id(scsicmd));
1844 synchronizecmd->count =
1845 cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1846
1847 /*
1848 * Now send the Fib to the adapter
1849 */
1850 status = aac_fib_send(ContainerCommand,
1851 cmd_fibcontext,
1852 sizeof(struct aac_synchronize),
1853 FsaNormal,
1854 0, 1,
1855 (fib_callback)synchronize_callback,
1856 (void *)scsicmd);
1857
1858 /*
1859 * Check that the command queued to the controller
1860 */
1861 if (status == -EINPROGRESS) {
1862 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1863 return 0;
1864 }
1865
1866 printk(KERN_WARNING
1867 "aac_synchronize: aac_fib_send failed with status: %d.\n", status);
1868 aac_fib_complete(cmd_fibcontext);
1869 aac_fib_free(cmd_fibcontext);
1870 return SCSI_MLQUEUE_HOST_BUSY;
1871 }
1872
1873 /**
1874 * aac_scsi_cmd() - Process SCSI command
1875 * @scsicmd: SCSI command block
1876 *
1877 * Emulate a SCSI command and queue the required request for the
1878 * aacraid firmware.
1879 */
1880
1881 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1882 {
1883 u32 cid;
1884 struct Scsi_Host *host = scsicmd->device->host;
1885 struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1886 struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1887
1888 if (fsa_dev_ptr == NULL)
1889 return -1;
1890 /*
1891 * If the bus, id or lun is out of range, return fail
1892 * Test does not apply to ID 16, the pseudo id for the controller
1893 * itself.
1894 */
1895 cid = scmd_id(scsicmd);
1896 if (cid != host->this_id) {
1897 if (scmd_channel(scsicmd) == CONTAINER_CHANNEL) {
1898 if((cid >= dev->maximum_num_containers) ||
1899 (scsicmd->device->lun != 0)) {
1900 scsicmd->result = DID_NO_CONNECT << 16;
1901 scsicmd->scsi_done(scsicmd);
1902 return 0;
1903 }
1904
1905 /*
1906 * If the target container doesn't exist, it may have
1907 * been newly created
1908 */
1909 if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1910 switch (scsicmd->cmnd[0]) {
1911 case SERVICE_ACTION_IN:
1912 if (!(dev->raw_io_interface) ||
1913 !(dev->raw_io_64) ||
1914 ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
1915 break;
1916 case INQUIRY:
1917 case READ_CAPACITY:
1918 case TEST_UNIT_READY:
1919 if (dev->in_reset)
1920 return -1;
1921 return _aac_probe_container(scsicmd,
1922 aac_probe_container_callback2);
1923 default:
1924 break;
1925 }
1926 }
1927 } else { /* check for physical non-dasd devices */
1928 if (dev->nondasd_support || expose_physicals ||
1929 dev->jbod) {
1930 if (dev->in_reset)
1931 return -1;
1932 return aac_send_srb_fib(scsicmd);
1933 } else {
1934 scsicmd->result = DID_NO_CONNECT << 16;
1935 scsicmd->scsi_done(scsicmd);
1936 return 0;
1937 }
1938 }
1939 }
1940 /*
1941 * else Command for the controller itself
1942 */
1943 else if ((scsicmd->cmnd[0] != INQUIRY) && /* only INQUIRY & TUR cmnd supported for controller */
1944 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1945 {
1946 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1947 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1948 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1949 ILLEGAL_REQUEST,
1950 SENCODE_INVALID_COMMAND,
1951 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1952 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1953 min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1954 SCSI_SENSE_BUFFERSIZE));
1955 scsicmd->scsi_done(scsicmd);
1956 return 0;
1957 }
1958
1959
1960 /* Handle commands here that don't really require going out to the adapter */
1961 switch (scsicmd->cmnd[0]) {
1962 case INQUIRY:
1963 {
1964 struct inquiry_data inq_data;
1965
1966 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", cid));
1967 memset(&inq_data, 0, sizeof (struct inquiry_data));
1968
1969 if (scsicmd->cmnd[1] & 0x1) {
1970 char *arr = (char *)&inq_data;
1971
1972 /* EVPD bit set */
1973 arr[0] = (scmd_id(scsicmd) == host->this_id) ?
1974 INQD_PDT_PROC : INQD_PDT_DA;
1975 if (scsicmd->cmnd[2] == 0) {
1976 /* supported vital product data pages */
1977 arr[3] = 2;
1978 arr[4] = 0x0;
1979 arr[5] = 0x80;
1980 arr[1] = scsicmd->cmnd[2];
1981 aac_internal_transfer(scsicmd, &inq_data, 0,
1982 sizeof(inq_data));
1983 scsicmd->result = DID_OK << 16 |
1984 COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1985 } else if (scsicmd->cmnd[2] == 0x80) {
1986 /* unit serial number page */
1987 arr[3] = setinqserial(dev, &arr[4],
1988 scmd_id(scsicmd));
1989 arr[1] = scsicmd->cmnd[2];
1990 aac_internal_transfer(scsicmd, &inq_data, 0,
1991 sizeof(inq_data));
1992 return aac_get_container_serial(scsicmd);
1993 } else {
1994 /* vpd page not implemented */
1995 scsicmd->result = DID_OK << 16 |
1996 COMMAND_COMPLETE << 8 |
1997 SAM_STAT_CHECK_CONDITION;
1998 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1999 ILLEGAL_REQUEST,
2000 SENCODE_INVALID_CDB_FIELD,
2001 ASENCODE_NO_SENSE, 0, 7, 2, 0);
2002 memcpy(scsicmd->sense_buffer,
2003 &dev->fsa_dev[cid].sense_data,
2004 min_t(size_t,
2005 sizeof(dev->fsa_dev[cid].sense_data),
2006 SCSI_SENSE_BUFFERSIZE));
2007 }
2008 scsicmd->scsi_done(scsicmd);
2009 return 0;
2010 }
2011 inq_data.inqd_ver = 2; /* claim compliance to SCSI-2 */
2012 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 */
2013 inq_data.inqd_len = 31;
2014 /*Format for "pad2" is RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */
2015 inq_data.inqd_pad2= 0x32 ; /*WBus16|Sync|CmdQue */
2016 /*
2017 * Set the Vendor, Product, and Revision Level
2018 * see: <vendor>.c i.e. aac.c
2019 */
2020 if (cid == host->this_id) {
2021 setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
2022 inq_data.inqd_pdt = INQD_PDT_PROC; /* Processor device */
2023 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
2024 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2025 scsicmd->scsi_done(scsicmd);
2026 return 0;
2027 }
2028 if (dev->in_reset)
2029 return -1;
2030 setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
2031 inq_data.inqd_pdt = INQD_PDT_DA; /* Direct/random access device */
2032 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
2033 return aac_get_container_name(scsicmd);
2034 }
2035 case SERVICE_ACTION_IN:
2036 if (!(dev->raw_io_interface) ||
2037 !(dev->raw_io_64) ||
2038 ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
2039 break;
2040 {
2041 u64 capacity;
2042 char cp[13];
2043
2044 dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
2045 capacity = fsa_dev_ptr[cid].size - 1;
2046 cp[0] = (capacity >> 56) & 0xff;
2047 cp[1] = (capacity >> 48) & 0xff;
2048 cp[2] = (capacity >> 40) & 0xff;
2049 cp[3] = (capacity >> 32) & 0xff;
2050 cp[4] = (capacity >> 24) & 0xff;
2051 cp[5] = (capacity >> 16) & 0xff;
2052 cp[6] = (capacity >> 8) & 0xff;
2053 cp[7] = (capacity >> 0) & 0xff;
2054 cp[8] = 0;
2055 cp[9] = 0;
2056 cp[10] = 2;
2057 cp[11] = 0;
2058 cp[12] = 0;
2059 aac_internal_transfer(scsicmd, cp, 0,
2060 min_t(size_t, scsicmd->cmnd[13], sizeof(cp)));
2061 if (sizeof(cp) < scsicmd->cmnd[13]) {
2062 unsigned int len, offset = sizeof(cp);
2063
2064 memset(cp, 0, offset);
2065 do {
2066 len = min_t(size_t, scsicmd->cmnd[13] - offset,
2067 sizeof(cp));
2068 aac_internal_transfer(scsicmd, cp, offset, len);
2069 } while ((offset += len) < scsicmd->cmnd[13]);
2070 }
2071
2072 /* Do not cache partition table for arrays */
2073 scsicmd->device->removable = 1;
2074
2075 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2076 scsicmd->scsi_done(scsicmd);
2077
2078 return 0;
2079 }
2080
2081 case READ_CAPACITY:
2082 {
2083 u32 capacity;
2084 char cp[8];
2085
2086 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
2087 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
2088 capacity = fsa_dev_ptr[cid].size - 1;
2089 else
2090 capacity = (u32)-1;
2091
2092 cp[0] = (capacity >> 24) & 0xff;
2093 cp[1] = (capacity >> 16) & 0xff;
2094 cp[2] = (capacity >> 8) & 0xff;
2095 cp[3] = (capacity >> 0) & 0xff;
2096 cp[4] = 0;
2097 cp[5] = 0;
2098 cp[6] = 2;
2099 cp[7] = 0;
2100 aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
2101 /* Do not cache partition table for arrays */
2102 scsicmd->device->removable = 1;
2103
2104 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2105 scsicmd->scsi_done(scsicmd);
2106
2107 return 0;
2108 }
2109
2110 case MODE_SENSE:
2111 {
2112 char mode_buf[7];
2113 int mode_buf_length = 4;
2114
2115 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
2116 mode_buf[0] = 3; /* Mode data length */
2117 mode_buf[1] = 0; /* Medium type - default */
2118 mode_buf[2] = 0; /* Device-specific param,
2119 bit 8: 0/1 = write enabled/protected
2120 bit 4: 0/1 = FUA enabled */
2121 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2122 mode_buf[2] = 0x10;
2123 mode_buf[3] = 0; /* Block descriptor length */
2124 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2125 ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2126 mode_buf[0] = 6;
2127 mode_buf[4] = 8;
2128 mode_buf[5] = 1;
2129 mode_buf[6] = ((aac_cache & 6) == 2)
2130 ? 0 : 0x04; /* WCE */
2131 mode_buf_length = 7;
2132 if (mode_buf_length > scsicmd->cmnd[4])
2133 mode_buf_length = scsicmd->cmnd[4];
2134 }
2135 aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length);
2136 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2137 scsicmd->scsi_done(scsicmd);
2138
2139 return 0;
2140 }
2141 case MODE_SENSE_10:
2142 {
2143 char mode_buf[11];
2144 int mode_buf_length = 8;
2145
2146 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
2147 mode_buf[0] = 0; /* Mode data length (MSB) */
2148 mode_buf[1] = 6; /* Mode data length (LSB) */
2149 mode_buf[2] = 0; /* Medium type - default */
2150 mode_buf[3] = 0; /* Device-specific param,
2151 bit 8: 0/1 = write enabled/protected
2152 bit 4: 0/1 = FUA enabled */
2153 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2154 mode_buf[3] = 0x10;
2155 mode_buf[4] = 0; /* reserved */
2156 mode_buf[5] = 0; /* reserved */
2157 mode_buf[6] = 0; /* Block descriptor length (MSB) */
2158 mode_buf[7] = 0; /* Block descriptor length (LSB) */
2159 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2160 ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2161 mode_buf[1] = 9;
2162 mode_buf[8] = 8;
2163 mode_buf[9] = 1;
2164 mode_buf[10] = ((aac_cache & 6) == 2)
2165 ? 0 : 0x04; /* WCE */
2166 mode_buf_length = 11;
2167 if (mode_buf_length > scsicmd->cmnd[8])
2168 mode_buf_length = scsicmd->cmnd[8];
2169 }
2170 aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length);
2171
2172 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2173 scsicmd->scsi_done(scsicmd);
2174
2175 return 0;
2176 }
2177 case REQUEST_SENSE:
2178 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
2179 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
2180 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
2181 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2182 scsicmd->scsi_done(scsicmd);
2183 return 0;
2184
2185 case ALLOW_MEDIUM_REMOVAL:
2186 dprintk((KERN_DEBUG "LOCK command.\n"));
2187 if (scsicmd->cmnd[4])
2188 fsa_dev_ptr[cid].locked = 1;
2189 else
2190 fsa_dev_ptr[cid].locked = 0;
2191
2192 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2193 scsicmd->scsi_done(scsicmd);
2194 return 0;
2195 /*
2196 * These commands are all No-Ops
2197 */
2198 case TEST_UNIT_READY:
2199 case RESERVE:
2200 case RELEASE:
2201 case REZERO_UNIT:
2202 case REASSIGN_BLOCKS:
2203 case SEEK_10:
2204 case START_STOP:
2205 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2206 scsicmd->scsi_done(scsicmd);
2207 return 0;
2208 }
2209
2210 switch (scsicmd->cmnd[0])
2211 {
2212 case READ_6:
2213 case READ_10:
2214 case READ_12:
2215 case READ_16:
2216 if (dev->in_reset)
2217 return -1;
2218 /*
2219 * Hack to keep track of ordinal number of the device that
2220 * corresponds to a container. Needed to convert
2221 * containers to /dev/sd device names
2222 */
2223
2224 if (scsicmd->request->rq_disk)
2225 strlcpy(fsa_dev_ptr[cid].devname,
2226 scsicmd->request->rq_disk->disk_name,
2227 min(sizeof(fsa_dev_ptr[cid].devname),
2228 sizeof(scsicmd->request->rq_disk->disk_name) + 1));
2229
2230 return aac_read(scsicmd);
2231
2232 case WRITE_6:
2233 case WRITE_10:
2234 case WRITE_12:
2235 case WRITE_16:
2236 if (dev->in_reset)
2237 return -1;
2238 return aac_write(scsicmd);
2239
2240 case SYNCHRONIZE_CACHE:
2241 if (((aac_cache & 6) == 6) && dev->cache_protected) {
2242 scsicmd->result = DID_OK << 16 |
2243 COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2244 scsicmd->scsi_done(scsicmd);
2245 return 0;
2246 }
2247 /* Issue FIB to tell Firmware to flush it's cache */
2248 if ((aac_cache & 6) != 2)
2249 return aac_synchronize(scsicmd);
2250 /* FALLTHRU */
2251 default:
2252 /*
2253 * Unhandled commands
2254 */
2255 dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
2256 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2257 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
2258 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
2259 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
2260 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2261 min_t(size_t,
2262 sizeof(dev->fsa_dev[cid].sense_data),
2263 SCSI_SENSE_BUFFERSIZE));
2264 scsicmd->scsi_done(scsicmd);
2265 return 0;
2266 }
2267 }
2268
2269 static int query_disk(struct aac_dev *dev, void __user *arg)
2270 {
2271 struct aac_query_disk qd;
2272 struct fsa_dev_info *fsa_dev_ptr;
2273
2274 fsa_dev_ptr = dev->fsa_dev;
2275 if (!fsa_dev_ptr)
2276 return -EBUSY;
2277 if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
2278 return -EFAULT;
2279 if (qd.cnum == -1)
2280 qd.cnum = qd.id;
2281 else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
2282 {
2283 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
2284 return -EINVAL;
2285 qd.instance = dev->scsi_host_ptr->host_no;
2286 qd.bus = 0;
2287 qd.id = CONTAINER_TO_ID(qd.cnum);
2288 qd.lun = CONTAINER_TO_LUN(qd.cnum);
2289 }
2290 else return -EINVAL;
2291
2292 qd.valid = fsa_dev_ptr[qd.cnum].valid != 0;
2293 qd.locked = fsa_dev_ptr[qd.cnum].locked;
2294 qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
2295
2296 if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
2297 qd.unmapped = 1;
2298 else
2299 qd.unmapped = 0;
2300
2301 strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
2302 min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
2303
2304 if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
2305 return -EFAULT;
2306 return 0;
2307 }
2308
2309 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
2310 {
2311 struct aac_delete_disk dd;
2312 struct fsa_dev_info *fsa_dev_ptr;
2313
2314 fsa_dev_ptr = dev->fsa_dev;
2315 if (!fsa_dev_ptr)
2316 return -EBUSY;
2317
2318 if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2319 return -EFAULT;
2320
2321 if (dd.cnum >= dev->maximum_num_containers)
2322 return -EINVAL;
2323 /*
2324 * Mark this container as being deleted.
2325 */
2326 fsa_dev_ptr[dd.cnum].deleted = 1;
2327 /*
2328 * Mark the container as no longer valid
2329 */
2330 fsa_dev_ptr[dd.cnum].valid = 0;
2331 return 0;
2332 }
2333
2334 static int delete_disk(struct aac_dev *dev, void __user *arg)
2335 {
2336 struct aac_delete_disk dd;
2337 struct fsa_dev_info *fsa_dev_ptr;
2338
2339 fsa_dev_ptr = dev->fsa_dev;
2340 if (!fsa_dev_ptr)
2341 return -EBUSY;
2342
2343 if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2344 return -EFAULT;
2345
2346 if (dd.cnum >= dev->maximum_num_containers)
2347 return -EINVAL;
2348 /*
2349 * If the container is locked, it can not be deleted by the API.
2350 */
2351 if (fsa_dev_ptr[dd.cnum].locked)
2352 return -EBUSY;
2353 else {
2354 /*
2355 * Mark the container as no longer being valid.
2356 */
2357 fsa_dev_ptr[dd.cnum].valid = 0;
2358 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
2359 return 0;
2360 }
2361 }
2362
2363 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
2364 {
2365 switch (cmd) {
2366 case FSACTL_QUERY_DISK:
2367 return query_disk(dev, arg);
2368 case FSACTL_DELETE_DISK:
2369 return delete_disk(dev, arg);
2370 case FSACTL_FORCE_DELETE_DISK:
2371 return force_delete_disk(dev, arg);
2372 case FSACTL_GET_CONTAINERS:
2373 return aac_get_containers(dev);
2374 default:
2375 return -ENOTTY;
2376 }
2377 }
2378
2379 /**
2380 *
2381 * aac_srb_callback
2382 * @context: the context set in the fib - here it is scsi cmd
2383 * @fibptr: pointer to the fib
2384 *
2385 * Handles the completion of a scsi command to a non dasd device
2386 *
2387 */
2388
2389 static void aac_srb_callback(void *context, struct fib * fibptr)
2390 {
2391 struct aac_dev *dev;
2392 struct aac_srb_reply *srbreply;
2393 struct scsi_cmnd *scsicmd;
2394
2395 scsicmd = (struct scsi_cmnd *) context;
2396
2397 if (!aac_valid_context(scsicmd, fibptr))
2398 return;
2399
2400 BUG_ON(fibptr == NULL);
2401
2402 dev = fibptr->dev;
2403
2404 srbreply = (struct aac_srb_reply *) fib_data(fibptr);
2405
2406 scsicmd->sense_buffer[0] = '\0'; /* Initialize sense valid flag to false */
2407 /*
2408 * Calculate resid for sg
2409 */
2410
2411 scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
2412 - le32_to_cpu(srbreply->data_xfer_length));
2413
2414 scsi_dma_unmap(scsicmd);
2415
2416 /*
2417 * First check the fib status
2418 */
2419
2420 if (le32_to_cpu(srbreply->status) != ST_OK){
2421 int len;
2422 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
2423 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2424 SCSI_SENSE_BUFFERSIZE);
2425 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2426 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2427 }
2428
2429 /*
2430 * Next check the srb status
2431 */
2432 switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
2433 case SRB_STATUS_ERROR_RECOVERY:
2434 case SRB_STATUS_PENDING:
2435 case SRB_STATUS_SUCCESS:
2436 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2437 break;
2438 case SRB_STATUS_DATA_OVERRUN:
2439 switch(scsicmd->cmnd[0]){
2440 case READ_6:
2441 case WRITE_6:
2442 case READ_10:
2443 case WRITE_10:
2444 case READ_12:
2445 case WRITE_12:
2446 case READ_16:
2447 case WRITE_16:
2448 if (le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow) {
2449 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
2450 } else {
2451 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
2452 }
2453 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2454 break;
2455 case INQUIRY: {
2456 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2457 break;
2458 }
2459 default:
2460 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2461 break;
2462 }
2463 break;
2464 case SRB_STATUS_ABORTED:
2465 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
2466 break;
2467 case SRB_STATUS_ABORT_FAILED:
2468 // Not sure about this one - but assuming the hba was trying to abort for some reason
2469 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
2470 break;
2471 case SRB_STATUS_PARITY_ERROR:
2472 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
2473 break;
2474 case SRB_STATUS_NO_DEVICE:
2475 case SRB_STATUS_INVALID_PATH_ID:
2476 case SRB_STATUS_INVALID_TARGET_ID:
2477 case SRB_STATUS_INVALID_LUN:
2478 case SRB_STATUS_SELECTION_TIMEOUT:
2479 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2480 break;
2481
2482 case SRB_STATUS_COMMAND_TIMEOUT:
2483 case SRB_STATUS_TIMEOUT:
2484 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
2485 break;
2486
2487 case SRB_STATUS_BUSY:
2488 scsicmd->result = DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
2489 break;
2490
2491 case SRB_STATUS_BUS_RESET:
2492 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
2493 break;
2494
2495 case SRB_STATUS_MESSAGE_REJECTED:
2496 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
2497 break;
2498 case SRB_STATUS_REQUEST_FLUSHED:
2499 case SRB_STATUS_ERROR:
2500 case SRB_STATUS_INVALID_REQUEST:
2501 case SRB_STATUS_REQUEST_SENSE_FAILED:
2502 case SRB_STATUS_NO_HBA:
2503 case SRB_STATUS_UNEXPECTED_BUS_FREE:
2504 case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
2505 case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
2506 case SRB_STATUS_DELAYED_RETRY:
2507 case SRB_STATUS_BAD_FUNCTION:
2508 case SRB_STATUS_NOT_STARTED:
2509 case SRB_STATUS_NOT_IN_USE:
2510 case SRB_STATUS_FORCE_ABORT:
2511 case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
2512 default:
2513 #ifdef AAC_DETAILED_STATUS_INFO
2514 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
2515 le32_to_cpu(srbreply->srb_status) & 0x3F,
2516 aac_get_status_string(
2517 le32_to_cpu(srbreply->srb_status) & 0x3F),
2518 scsicmd->cmnd[0],
2519 le32_to_cpu(srbreply->scsi_status));
2520 #endif
2521 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2522 break;
2523 }
2524 if (le32_to_cpu(srbreply->scsi_status) == SAM_STAT_CHECK_CONDITION) {
2525 int len;
2526 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
2527 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2528 SCSI_SENSE_BUFFERSIZE);
2529 #ifdef AAC_DETAILED_STATUS_INFO
2530 printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
2531 le32_to_cpu(srbreply->status), len);
2532 #endif
2533 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2534 }
2535 /*
2536 * OR in the scsi status (already shifted up a bit)
2537 */
2538 scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
2539
2540 aac_fib_complete(fibptr);
2541 aac_fib_free(fibptr);
2542 scsicmd->scsi_done(scsicmd);
2543 }
2544
2545 /**
2546 *
2547 * aac_send_scb_fib
2548 * @scsicmd: the scsi command block
2549 *
2550 * This routine will form a FIB and fill in the aac_srb from the
2551 * scsicmd passed in.
2552 */
2553
2554 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
2555 {
2556 struct fib* cmd_fibcontext;
2557 struct aac_dev* dev;
2558 int status;
2559
2560 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2561 if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
2562 scsicmd->device->lun > 7) {
2563 scsicmd->result = DID_NO_CONNECT << 16;
2564 scsicmd->scsi_done(scsicmd);
2565 return 0;
2566 }
2567
2568 /*
2569 * Allocate and initialize a Fib then setup a BlockWrite command
2570 */
2571 if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
2572 return -1;
2573 }
2574 status = aac_adapter_scsi(cmd_fibcontext, scsicmd);
2575
2576 /*
2577 * Check that the command queued to the controller
2578 */
2579 if (status == -EINPROGRESS) {
2580 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
2581 return 0;
2582 }
2583
2584 printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
2585 aac_fib_complete(cmd_fibcontext);
2586 aac_fib_free(cmd_fibcontext);
2587
2588 return -1;
2589 }
2590
2591 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
2592 {
2593 struct aac_dev *dev;
2594 unsigned long byte_count = 0;
2595 int nseg;
2596
2597 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2598 // Get rid of old data
2599 psg->count = 0;
2600 psg->sg[0].addr = 0;
2601 psg->sg[0].count = 0;
2602
2603 nseg = scsi_dma_map(scsicmd);
2604 BUG_ON(nseg < 0);
2605 if (nseg) {
2606 struct scatterlist *sg;
2607 int i;
2608
2609 psg->count = cpu_to_le32(nseg);
2610
2611 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2612 psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2613 psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2614 byte_count += sg_dma_len(sg);
2615 }
2616 /* hba wants the size to be exact */
2617 if (byte_count > scsi_bufflen(scsicmd)) {
2618 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2619 (byte_count - scsi_bufflen(scsicmd));
2620 psg->sg[i-1].count = cpu_to_le32(temp);
2621 byte_count = scsi_bufflen(scsicmd);
2622 }
2623 /* Check for command underflow */
2624 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2625 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2626 byte_count, scsicmd->underflow);
2627 }
2628 }
2629 return byte_count;
2630 }
2631
2632
2633 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2634 {
2635 struct aac_dev *dev;
2636 unsigned long byte_count = 0;
2637 u64 addr;
2638 int nseg;
2639
2640 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2641 // Get rid of old data
2642 psg->count = 0;
2643 psg->sg[0].addr[0] = 0;
2644 psg->sg[0].addr[1] = 0;
2645 psg->sg[0].count = 0;
2646
2647 nseg = scsi_dma_map(scsicmd);
2648 BUG_ON(nseg < 0);
2649 if (nseg) {
2650 struct scatterlist *sg;
2651 int i;
2652
2653 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2654 int count = sg_dma_len(sg);
2655 addr = sg_dma_address(sg);
2656 psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2657 psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2658 psg->sg[i].count = cpu_to_le32(count);
2659 byte_count += count;
2660 }
2661 psg->count = cpu_to_le32(nseg);
2662 /* hba wants the size to be exact */
2663 if (byte_count > scsi_bufflen(scsicmd)) {
2664 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2665 (byte_count - scsi_bufflen(scsicmd));
2666 psg->sg[i-1].count = cpu_to_le32(temp);
2667 byte_count = scsi_bufflen(scsicmd);
2668 }
2669 /* Check for command underflow */
2670 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2671 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2672 byte_count, scsicmd->underflow);
2673 }
2674 }
2675 return byte_count;
2676 }
2677
2678 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2679 {
2680 unsigned long byte_count = 0;
2681 int nseg;
2682
2683 // Get rid of old data
2684 psg->count = 0;
2685 psg->sg[0].next = 0;
2686 psg->sg[0].prev = 0;
2687 psg->sg[0].addr[0] = 0;
2688 psg->sg[0].addr[1] = 0;
2689 psg->sg[0].count = 0;
2690 psg->sg[0].flags = 0;
2691
2692 nseg = scsi_dma_map(scsicmd);
2693 BUG_ON(nseg < 0);
2694 if (nseg) {
2695 struct scatterlist *sg;
2696 int i;
2697
2698 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2699 int count = sg_dma_len(sg);
2700 u64 addr = sg_dma_address(sg);
2701 psg->sg[i].next = 0;
2702 psg->sg[i].prev = 0;
2703 psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2704 psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2705 psg->sg[i].count = cpu_to_le32(count);
2706 psg->sg[i].flags = 0;
2707 byte_count += count;
2708 }
2709 psg->count = cpu_to_le32(nseg);
2710 /* hba wants the size to be exact */
2711 if (byte_count > scsi_bufflen(scsicmd)) {
2712 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2713 (byte_count - scsi_bufflen(scsicmd));
2714 psg->sg[i-1].count = cpu_to_le32(temp);
2715 byte_count = scsi_bufflen(scsicmd);
2716 }
2717 /* Check for command underflow */
2718 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2719 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2720 byte_count, scsicmd->underflow);
2721 }
2722 }
2723 return byte_count;
2724 }
2725
2726 #ifdef AAC_DETAILED_STATUS_INFO
2727
2728 struct aac_srb_status_info {
2729 u32 status;
2730 char *str;
2731 };
2732
2733
2734 static struct aac_srb_status_info srb_status_info[] = {
2735 { SRB_STATUS_PENDING, "Pending Status"},
2736 { SRB_STATUS_SUCCESS, "Success"},
2737 { SRB_STATUS_ABORTED, "Aborted Command"},
2738 { SRB_STATUS_ABORT_FAILED, "Abort Failed"},
2739 { SRB_STATUS_ERROR, "Error Event"},
2740 { SRB_STATUS_BUSY, "Device Busy"},
2741 { SRB_STATUS_INVALID_REQUEST, "Invalid Request"},
2742 { SRB_STATUS_INVALID_PATH_ID, "Invalid Path ID"},
2743 { SRB_STATUS_NO_DEVICE, "No Device"},
2744 { SRB_STATUS_TIMEOUT, "Timeout"},
2745 { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2746 { SRB_STATUS_COMMAND_TIMEOUT, "Command Timeout"},
2747 { SRB_STATUS_MESSAGE_REJECTED, "Message Rejected"},
2748 { SRB_STATUS_BUS_RESET, "Bus Reset"},
2749 { SRB_STATUS_PARITY_ERROR, "Parity Error"},
2750 { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2751 { SRB_STATUS_NO_HBA, "No HBA"},
2752 { SRB_STATUS_DATA_OVERRUN, "Data Overrun/Data Underrun"},
2753 { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2754 { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2755 { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2756 { SRB_STATUS_REQUEST_FLUSHED, "Request Flushed"},
2757 { SRB_STATUS_DELAYED_RETRY, "Delayed Retry"},
2758 { SRB_STATUS_INVALID_LUN, "Invalid LUN"},
2759 { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2760 { SRB_STATUS_BAD_FUNCTION, "Bad Function"},
2761 { SRB_STATUS_ERROR_RECOVERY, "Error Recovery"},
2762 { SRB_STATUS_NOT_STARTED, "Not Started"},
2763 { SRB_STATUS_NOT_IN_USE, "Not In Use"},
2764 { SRB_STATUS_FORCE_ABORT, "Force Abort"},
2765 { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2766 { 0xff, "Unknown Error"}
2767 };
2768
2769 char *aac_get_status_string(u32 status)
2770 {
2771 int i;
2772
2773 for (i = 0; i < ARRAY_SIZE(srb_status_info); i++)
2774 if (srb_status_info[i].status == status)
2775 return srb_status_info[i].str;
2776
2777 return "Bad Status Code";
2778 }
2779
2780 #endif
WRT350N Kernel Patches