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dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / aacraid / aachba.c
blobe83ef8aaa98c8d808ed1f5c81619e8075772cc61
1 /*
2 * Adaptec AAC series RAID controller driver
3 * (c) Copyright 2001 Red Hat Inc.
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/uaccess.h>
35 #include <linux/highmem.h> /* For flush_kernel_dcache_page */
36
37 #include <scsi/scsi.h>
38 #include <scsi/scsi_cmnd.h>
39 #include <scsi/scsi_device.h>
40 #include <scsi/scsi_host.h>
41
42 #include "aacraid.h"
43
44 /* values for inqd_pdt: Peripheral device type in plain English */
45 #define INQD_PDT_DA 0x00 /* Direct-access (DISK) device */
46 #define INQD_PDT_PROC 0x03 /* Processor device */
47 #define INQD_PDT_CHNGR 0x08 /* Changer (jukebox, scsi2) */
48 #define INQD_PDT_COMM 0x09 /* Communication device (scsi2) */
49 #define INQD_PDT_NOLUN2 0x1f /* Unknown Device (scsi2) */
50 #define INQD_PDT_NOLUN 0x7f /* Logical Unit Not Present */
51
52 #define INQD_PDT_DMASK 0x1F /* Peripheral Device Type Mask */
53 #define INQD_PDT_QMASK 0xE0 /* Peripheral Device Qualifer Mask */
54
55 /*
56 * Sense codes
57 */
58
59 #define SENCODE_NO_SENSE 0x00
60 #define SENCODE_END_OF_DATA 0x00
61 #define SENCODE_BECOMING_READY 0x04
62 #define SENCODE_INIT_CMD_REQUIRED 0x04
63 #define SENCODE_PARAM_LIST_LENGTH_ERROR 0x1A
64 #define SENCODE_INVALID_COMMAND 0x20
65 #define SENCODE_LBA_OUT_OF_RANGE 0x21
66 #define SENCODE_INVALID_CDB_FIELD 0x24
67 #define SENCODE_LUN_NOT_SUPPORTED 0x25
68 #define SENCODE_INVALID_PARAM_FIELD 0x26
69 #define SENCODE_PARAM_NOT_SUPPORTED 0x26
70 #define SENCODE_PARAM_VALUE_INVALID 0x26
71 #define SENCODE_RESET_OCCURRED 0x29
72 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x3E
73 #define SENCODE_INQUIRY_DATA_CHANGED 0x3F
74 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x39
75 #define SENCODE_DIAGNOSTIC_FAILURE 0x40
76 #define SENCODE_INTERNAL_TARGET_FAILURE 0x44
77 #define SENCODE_INVALID_MESSAGE_ERROR 0x49
78 #define SENCODE_LUN_FAILED_SELF_CONFIG 0x4c
79 #define SENCODE_OVERLAPPED_COMMAND 0x4E
80
81 /*
82 * Additional sense codes
83 */
84
85 #define ASENCODE_NO_SENSE 0x00
86 #define ASENCODE_END_OF_DATA 0x05
87 #define ASENCODE_BECOMING_READY 0x01
88 #define ASENCODE_INIT_CMD_REQUIRED 0x02
89 #define ASENCODE_PARAM_LIST_LENGTH_ERROR 0x00
90 #define ASENCODE_INVALID_COMMAND 0x00
91 #define ASENCODE_LBA_OUT_OF_RANGE 0x00
92 #define ASENCODE_INVALID_CDB_FIELD 0x00
93 #define ASENCODE_LUN_NOT_SUPPORTED 0x00
94 #define ASENCODE_INVALID_PARAM_FIELD 0x00
95 #define ASENCODE_PARAM_NOT_SUPPORTED 0x01
96 #define ASENCODE_PARAM_VALUE_INVALID 0x02
97 #define ASENCODE_RESET_OCCURRED 0x00
98 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x00
99 #define ASENCODE_INQUIRY_DATA_CHANGED 0x03
100 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x00
101 #define ASENCODE_DIAGNOSTIC_FAILURE 0x80
102 #define ASENCODE_INTERNAL_TARGET_FAILURE 0x00
103 #define ASENCODE_INVALID_MESSAGE_ERROR 0x00
104 #define ASENCODE_LUN_FAILED_SELF_CONFIG 0x00
105 #define ASENCODE_OVERLAPPED_COMMAND 0x00
106
107 #define BYTE0(x) (unsigned char)(x)
108 #define BYTE1(x) (unsigned char)((x) >> 8)
109 #define BYTE2(x) (unsigned char)((x) >> 16)
110 #define BYTE3(x) (unsigned char)((x) >> 24)
111
112 /*------------------------------------------------------------------------------
113 * S T R U C T S / T Y P E D E F S
114 *----------------------------------------------------------------------------*/
115 /* SCSI inquiry data */
116 struct inquiry_data {
117 u8 inqd_pdt; /* Peripheral qualifier | Peripheral Device Type */
118 u8 inqd_dtq; /* RMB | Device Type Qualifier */
119 u8 inqd_ver; /* ISO version | ECMA version | ANSI-approved version */
120 u8 inqd_rdf; /* AENC | TrmIOP | Response data format */
121 u8 inqd_len; /* Additional length (n-4) */
122 u8 inqd_pad1[2];/* Reserved - must be zero */
123 u8 inqd_pad2; /* RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */
124 u8 inqd_vid[8]; /* Vendor ID */
125 u8 inqd_pid[16];/* Product ID */
126 u8 inqd_prl[4]; /* Product Revision Level */
127 };
128
129 /*
130 * M O D U L E G L O B A L S
131 */
132
133 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
134 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
135 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
136 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
137 #ifdef AAC_DETAILED_STATUS_INFO
138 static char *aac_get_status_string(u32 status);
139 #endif
140
141 /*
142 * Non dasd selection is handled entirely in aachba now
143 */
144
145 static int nondasd = -1;
146 static int aac_cache = 2; /* WCE=0 to avoid performance problems */
147 static int dacmode = -1;
148 int aac_msi;
149 int aac_commit = -1;
150 int startup_timeout = 180;
151 int aif_timeout = 120;
152
153 module_param(nondasd, int, S_IRUGO|S_IWUSR);
154 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices."
155 " 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"
158 "\tbit 0 - Disable FUA in WRITE SCSI commands\n"
159 "\tbit 1 - Disable SYNCHRONIZE_CACHE SCSI command\n"
160 "\tbit 2 - Disable only if Battery is protecting Cache");
161 module_param(dacmode, int, S_IRUGO|S_IWUSR);
162 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC."
163 " 0=off, 1=on");
164 module_param_named(commit, aac_commit, int, S_IRUGO|S_IWUSR);
165 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the"
166 " adapter for foreign arrays.\n"
167 "This is typically needed in systems that do not have a BIOS."
168 " 0=off, 1=on");
169 module_param_named(msi, aac_msi, int, S_IRUGO|S_IWUSR);
170 MODULE_PARM_DESC(msi, "IRQ handling."
171 " 0=PIC(default), 1=MSI, 2=MSI-X(unsupported, uses MSI)");
172 module_param(startup_timeout, int, S_IRUGO|S_IWUSR);
173 MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for"
174 " adapter to have it's kernel up and\n"
175 "running. This is typically adjusted for large systems that do not"
176 " have a BIOS.");
177 module_param(aif_timeout, int, S_IRUGO|S_IWUSR);
178 MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for"
179 " applications to pick up AIFs before\n"
180 "deregistering them. This is typically adjusted for heavily burdened"
181 " systems.");
182
183 int numacb = -1;
184 module_param(numacb, int, S_IRUGO|S_IWUSR);
185 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control"
186 " blocks (FIB) allocated. Valid values are 512 and down. Default is"
187 " to use suggestion from Firmware.");
188
189 int acbsize = -1;
190 module_param(acbsize, int, S_IRUGO|S_IWUSR);
191 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB)"
192 " size. Valid values are 512, 2048, 4096 and 8192. Default is to use"
193 " suggestion from Firmware.");
194
195 int update_interval = 30 * 60;
196 module_param(update_interval, int, S_IRUGO|S_IWUSR);
197 MODULE_PARM_DESC(update_interval, "Interval in seconds between time sync"
198 " updates issued to adapter.");
199
200 int check_interval = 24 * 60 * 60;
201 module_param(check_interval, int, S_IRUGO|S_IWUSR);
202 MODULE_PARM_DESC(check_interval, "Interval in seconds between adapter health"
203 " checks.");
204
205 int aac_check_reset = 1;
206 module_param_named(check_reset, aac_check_reset, int, S_IRUGO|S_IWUSR);
207 MODULE_PARM_DESC(check_reset, "If adapter fails health check, reset the"
208 " adapter. a value of -1 forces the reset to adapters programmed to"
209 " ignore it.");
210
211 int expose_physicals = -1;
212 module_param(expose_physicals, int, S_IRUGO|S_IWUSR);
213 MODULE_PARM_DESC(expose_physicals, "Expose physical components of the arrays."
214 " -1=protect 0=off, 1=on");
215
216 int aac_reset_devices;
217 module_param_named(reset_devices, aac_reset_devices, int, S_IRUGO|S_IWUSR);
218 MODULE_PARM_DESC(reset_devices, "Force an adapter reset at initialization.");
219
220 int aac_wwn = 1;
221 module_param_named(wwn, aac_wwn, int, S_IRUGO|S_IWUSR);
222 MODULE_PARM_DESC(wwn, "Select a WWN type for the arrays:\n"
223 "\t0 - Disable\n"
224 "\t1 - Array Meta Data Signature (default)\n"
225 "\t2 - Adapter Serial Number");
226
227
228 static inline int aac_valid_context(struct scsi_cmnd *scsicmd,
229 struct fib *fibptr) {
230 struct scsi_device *device;
231
232 if (unlikely(!scsicmd || !scsicmd->scsi_done)) {
233 dprintk((KERN_WARNING "aac_valid_context: scsi command corrupt\n"));
234 aac_fib_complete(fibptr);
235 aac_fib_free(fibptr);
236 return 0;
237 }
238 scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
239 device = scsicmd->device;
240 if (unlikely(!device || !scsi_device_online(device))) {
241 dprintk((KERN_WARNING "aac_valid_context: scsi device corrupt\n"));
242 aac_fib_complete(fibptr);
243 aac_fib_free(fibptr);
244 return 0;
245 }
246 return 1;
247 }
248
249 /**
250 * aac_get_config_status - check the adapter configuration
251 * @common: adapter to query
252 *
253 * Query config status, and commit the configuration if needed.
254 */
255 int aac_get_config_status(struct aac_dev *dev, int commit_flag)
256 {
257 int status = 0;
258 struct fib * fibptr;
259
260 if (!(fibptr = aac_fib_alloc(dev)))
261 return -ENOMEM;
262
263 aac_fib_init(fibptr);
264 {
265 struct aac_get_config_status *dinfo;
266 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
267
268 dinfo->command = cpu_to_le32(VM_ContainerConfig);
269 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
270 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
271 }
272
273 status = aac_fib_send(ContainerCommand,
274 fibptr,
275 sizeof (struct aac_get_config_status),
276 FsaNormal,
277 1, 1,
278 NULL, NULL);
279 if (status < 0) {
280 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
281 } else {
282 struct aac_get_config_status_resp *reply
283 = (struct aac_get_config_status_resp *) fib_data(fibptr);
284 dprintk((KERN_WARNING
285 "aac_get_config_status: response=%d status=%d action=%d\n",
286 le32_to_cpu(reply->response),
287 le32_to_cpu(reply->status),
288 le32_to_cpu(reply->data.action)));
289 if ((le32_to_cpu(reply->response) != ST_OK) ||
290 (le32_to_cpu(reply->status) != CT_OK) ||
291 (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
292 printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
293 status = -EINVAL;
294 }
295 }
296 aac_fib_complete(fibptr);
297 /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
298 if (status >= 0) {
299 if ((aac_commit == 1) || commit_flag) {
300 struct aac_commit_config * dinfo;
301 aac_fib_init(fibptr);
302 dinfo = (struct aac_commit_config *) fib_data(fibptr);
303
304 dinfo->command = cpu_to_le32(VM_ContainerConfig);
305 dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
306
307 status = aac_fib_send(ContainerCommand,
308 fibptr,
309 sizeof (struct aac_commit_config),
310 FsaNormal,
311 1, 1,
312 NULL, NULL);
313 aac_fib_complete(fibptr);
314 } else if (aac_commit == 0) {
315 printk(KERN_WARNING
316 "aac_get_config_status: Foreign device configurations are being ignored\n");
317 }
318 }
319 aac_fib_free(fibptr);
320 return status;
321 }
322
323 /**
324 * aac_get_containers - list containers
325 * @common: adapter to probe
326 *
327 * Make a list of all containers on this controller
328 */
329 int aac_get_containers(struct aac_dev *dev)
330 {
331 struct fsa_dev_info *fsa_dev_ptr;
332 u32 index;
333 int status = 0;
334 struct fib * fibptr;
335 struct aac_get_container_count *dinfo;
336 struct aac_get_container_count_resp *dresp;
337 int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
338
339 if (!(fibptr = aac_fib_alloc(dev)))
340 return -ENOMEM;
341
342 aac_fib_init(fibptr);
343 dinfo = (struct aac_get_container_count *) fib_data(fibptr);
344 dinfo->command = cpu_to_le32(VM_ContainerConfig);
345 dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
346
347 status = aac_fib_send(ContainerCommand,
348 fibptr,
349 sizeof (struct aac_get_container_count),
350 FsaNormal,
351 1, 1,
352 NULL, NULL);
353 if (status >= 0) {
354 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
355 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
356 aac_fib_complete(fibptr);
357 }
358 aac_fib_free(fibptr);
359
360 if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
361 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
362 fsa_dev_ptr = kzalloc(sizeof(*fsa_dev_ptr) * maximum_num_containers,
363 GFP_KERNEL);
364 if (!fsa_dev_ptr)
365 return -ENOMEM;
366
367 dev->fsa_dev = fsa_dev_ptr;
368 dev->maximum_num_containers = maximum_num_containers;
369
370 for (index = 0; index < dev->maximum_num_containers; ) {
371 fsa_dev_ptr[index].devname[0] = '\0';
372
373 status = aac_probe_container(dev, index);
374
375 if (status < 0) {
376 printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
377 break;
378 }
379
380 /*
381 * If there are no more containers, then stop asking.
382 */
383 if (++index >= status)
384 break;
385 }
386 return status;
387 }
388
389 static void get_container_name_callback(void *context, struct fib * fibptr)
390 {
391 struct aac_get_name_resp * get_name_reply;
392 struct scsi_cmnd * scsicmd;
393
394 scsicmd = (struct scsi_cmnd *) context;
395
396 if (!aac_valid_context(scsicmd, fibptr))
397 return;
398
399 dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
400 BUG_ON(fibptr == NULL);
401
402 get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
403 /* Failure is irrelevant, using default value instead */
404 if ((le32_to_cpu(get_name_reply->status) == CT_OK)
405 && (get_name_reply->data[0] != '\0')) {
406 char *sp = get_name_reply->data;
407 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
408 while (*sp == ' ')
409 ++sp;
410 if (*sp) {
411 struct inquiry_data inq;
412 char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
413 int count = sizeof(d);
414 char *dp = d;
415 do {
416 *dp++ = (*sp) ? *sp++ : ' ';
417 } while (--count > 0);
418
419 scsi_sg_copy_to_buffer(scsicmd, &inq, sizeof(inq));
420 memcpy(inq.inqd_pid, d, sizeof(d));
421 scsi_sg_copy_from_buffer(scsicmd, &inq, sizeof(inq));
422 }
423 }
424
425 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
426
427 aac_fib_complete(fibptr);
428 aac_fib_free(fibptr);
429 scsicmd->scsi_done(scsicmd);
430 }
431
432 /**
433 * aac_get_container_name - get container name, none blocking.
434 */
435 static int aac_get_container_name(struct scsi_cmnd * scsicmd)
436 {
437 int status;
438 struct aac_get_name *dinfo;
439 struct fib * cmd_fibcontext;
440 struct aac_dev * dev;
441
442 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
443
444 if (!(cmd_fibcontext = aac_fib_alloc(dev)))
445 return -ENOMEM;
446
447 aac_fib_init(cmd_fibcontext);
448 dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
449
450 dinfo->command = cpu_to_le32(VM_ContainerConfig);
451 dinfo->type = cpu_to_le32(CT_READ_NAME);
452 dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
453 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
454
455 status = aac_fib_send(ContainerCommand,
456 cmd_fibcontext,
457 sizeof (struct aac_get_name),
458 FsaNormal,
459 0, 1,
460 (fib_callback)get_container_name_callback,
461 (void *) scsicmd);
462
463 /*
464 * Check that the command queued to the controller
465 */
466 if (status == -EINPROGRESS) {
467 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
468 return 0;
469 }
470
471 printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
472 aac_fib_complete(cmd_fibcontext);
473 aac_fib_free(cmd_fibcontext);
474 return -1;
475 }
476
477 static int aac_probe_container_callback2(struct scsi_cmnd * scsicmd)
478 {
479 struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
480
481 if ((fsa_dev_ptr[scmd_id(scsicmd)].valid & 1))
482 return aac_scsi_cmd(scsicmd);
483
484 scsicmd->result = DID_NO_CONNECT << 16;
485 scsicmd->scsi_done(scsicmd);
486 return 0;
487 }
488
489 static void _aac_probe_container2(void * context, struct fib * fibptr)
490 {
491 struct fsa_dev_info *fsa_dev_ptr;
492 int (*callback)(struct scsi_cmnd *);
493 struct scsi_cmnd * scsicmd = (struct scsi_cmnd *)context;
494
495
496 if (!aac_valid_context(scsicmd, fibptr))
497 return;
498
499 scsicmd->SCp.Status = 0;
500 fsa_dev_ptr = fibptr->dev->fsa_dev;
501 if (fsa_dev_ptr) {
502 struct aac_mount * dresp = (struct aac_mount *) fib_data(fibptr);
503 fsa_dev_ptr += scmd_id(scsicmd);
504
505 if ((le32_to_cpu(dresp->status) == ST_OK) &&
506 (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
507 (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
508 fsa_dev_ptr->valid = 1;
509 /* sense_key holds the current state of the spin-up */
510 if (dresp->mnt[0].state & cpu_to_le32(FSCS_NOT_READY))
511 fsa_dev_ptr->sense_data.sense_key = NOT_READY;
512 else if (fsa_dev_ptr->sense_data.sense_key == NOT_READY)
513 fsa_dev_ptr->sense_data.sense_key = NO_SENSE;
514 fsa_dev_ptr->type = le32_to_cpu(dresp->mnt[0].vol);
515 fsa_dev_ptr->size
516 = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
517 (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
518 fsa_dev_ptr->ro = ((le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) != 0);
519 }
520 if ((fsa_dev_ptr->valid & 1) == 0)
521 fsa_dev_ptr->valid = 0;
522 scsicmd->SCp.Status = le32_to_cpu(dresp->count);
523 }
524 aac_fib_complete(fibptr);
525 aac_fib_free(fibptr);
526 callback = (int (*)(struct scsi_cmnd *))(scsicmd->SCp.ptr);
527 scsicmd->SCp.ptr = NULL;
528 (*callback)(scsicmd);
529 return;
530 }
531
532 static void _aac_probe_container1(void * context, struct fib * fibptr)
533 {
534 struct scsi_cmnd * scsicmd;
535 struct aac_mount * dresp;
536 struct aac_query_mount *dinfo;
537 int status;
538
539 dresp = (struct aac_mount *) fib_data(fibptr);
540 dresp->mnt[0].capacityhigh = 0;
541 if ((le32_to_cpu(dresp->status) != ST_OK) ||
542 (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
543 _aac_probe_container2(context, fibptr);
544 return;
545 }
546 scsicmd = (struct scsi_cmnd *) context;
547
548 if (!aac_valid_context(scsicmd, fibptr))
549 return;
550
551 aac_fib_init(fibptr);
552
553 dinfo = (struct aac_query_mount *)fib_data(fibptr);
554
555 dinfo->command = cpu_to_le32(VM_NameServe64);
556 dinfo->count = cpu_to_le32(scmd_id(scsicmd));
557 dinfo->type = cpu_to_le32(FT_FILESYS);
558
559 status = aac_fib_send(ContainerCommand,
560 fibptr,
561 sizeof(struct aac_query_mount),
562 FsaNormal,
563 0, 1,
564 _aac_probe_container2,
565 (void *) scsicmd);
566 /*
567 * Check that the command queued to the controller
568 */
569 if (status == -EINPROGRESS)
570 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
571 else if (status < 0) {
572 /* Inherit results from VM_NameServe, if any */
573 dresp->status = cpu_to_le32(ST_OK);
574 _aac_probe_container2(context, fibptr);
575 }
576 }
577
578 static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(struct scsi_cmnd *))
579 {
580 struct fib * fibptr;
581 int status = -ENOMEM;
582
583 if ((fibptr = aac_fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata))) {
584 struct aac_query_mount *dinfo;
585
586 aac_fib_init(fibptr);
587
588 dinfo = (struct aac_query_mount *)fib_data(fibptr);
589
590 dinfo->command = cpu_to_le32(VM_NameServe);
591 dinfo->count = cpu_to_le32(scmd_id(scsicmd));
592 dinfo->type = cpu_to_le32(FT_FILESYS);
593 scsicmd->SCp.ptr = (char *)callback;
594
595 status = aac_fib_send(ContainerCommand,
596 fibptr,
597 sizeof(struct aac_query_mount),
598 FsaNormal,
599 0, 1,
600 _aac_probe_container1,
601 (void *) scsicmd);
602 /*
603 * Check that the command queued to the controller
604 */
605 if (status == -EINPROGRESS) {
606 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
607 return 0;
608 }
609 if (status < 0) {
610 scsicmd->SCp.ptr = NULL;
611 aac_fib_complete(fibptr);
612 aac_fib_free(fibptr);
613 }
614 }
615 if (status < 0) {
616 struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
617 if (fsa_dev_ptr) {
618 fsa_dev_ptr += scmd_id(scsicmd);
619 if ((fsa_dev_ptr->valid & 1) == 0) {
620 fsa_dev_ptr->valid = 0;
621 return (*callback)(scsicmd);
622 }
623 }
624 }
625 return status;
626 }
627
628 /**
629 * aac_probe_container - query a logical volume
630 * @dev: device to query
631 * @cid: container identifier
632 *
633 * Queries the controller about the given volume. The volume information
634 * is updated in the struct fsa_dev_info structure rather than returned.
635 */
636 static int aac_probe_container_callback1(struct scsi_cmnd * scsicmd)
637 {
638 scsicmd->device = NULL;
639 return 0;
640 }
641
642 int aac_probe_container(struct aac_dev *dev, int cid)
643 {
644 struct scsi_cmnd *scsicmd = kmalloc(sizeof(*scsicmd), GFP_KERNEL);
645 struct scsi_device *scsidev = kmalloc(sizeof(*scsidev), GFP_KERNEL);
646 int status;
647
648 if (!scsicmd || !scsidev) {
649 kfree(scsicmd);
650 kfree(scsidev);
651 return -ENOMEM;
652 }
653 scsicmd->list.next = NULL;
654 scsicmd->scsi_done = (void (*)(struct scsi_cmnd*))aac_probe_container_callback1;
655
656 scsicmd->device = scsidev;
657 scsidev->sdev_state = 0;
658 scsidev->id = cid;
659 scsidev->host = dev->scsi_host_ptr;
660
661 if (_aac_probe_container(scsicmd, aac_probe_container_callback1) == 0)
662 while (scsicmd->device == scsidev)
663 schedule();
664 kfree(scsidev);
665 status = scsicmd->SCp.Status;
666 kfree(scsicmd);
667 return status;
668 }
669
670 /* Local Structure to set SCSI inquiry data strings */
671 struct scsi_inq {
672 char vid[8]; /* Vendor ID */
673 char pid[16]; /* Product ID */
674 char prl[4]; /* Product Revision Level */
675 };
676
677 /**
678 * InqStrCopy - string merge
679 * @a: string to copy from
680 * @b: string to copy to
681 *
682 * Copy a String from one location to another
683 * without copying \0
684 */
685
686 static void inqstrcpy(char *a, char *b)
687 {
688
689 while (*a != (char)0)
690 *b++ = *a++;
691 }
692
693 static char *container_types[] = {
694 "None",
695 "Volume",
696 "Mirror",
697 "Stripe",
698 "RAID5",
699 "SSRW",
700 "SSRO",
701 "Morph",
702 "Legacy",
703 "RAID4",
704 "RAID10",
705 "RAID00",
706 "V-MIRRORS",
707 "PSEUDO R4",
708 "RAID50",
709 "RAID5D",
710 "RAID5D0",
711 "RAID1E",
712 "RAID6",
713 "RAID60",
714 "Unknown"
715 };
716
717 char * get_container_type(unsigned tindex)
718 {
719 if (tindex >= ARRAY_SIZE(container_types))
720 tindex = ARRAY_SIZE(container_types) - 1;
721 return container_types[tindex];
722 }
723
724 /* Function: setinqstr
725 *
726 * Arguments: [1] pointer to void [1] int
727 *
728 * Purpose: Sets SCSI inquiry data strings for vendor, product
729 * and revision level. Allows strings to be set in platform dependant
730 * files instead of in OS dependant driver source.
731 */
732
733 static void setinqstr(struct aac_dev *dev, void *data, int tindex)
734 {
735 struct scsi_inq *str;
736
737 str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
738 memset(str, ' ', sizeof(*str));
739
740 if (dev->supplement_adapter_info.AdapterTypeText[0]) {
741 char * cp = dev->supplement_adapter_info.AdapterTypeText;
742 int c;
743 if ((cp[0] == 'A') && (cp[1] == 'O') && (cp[2] == 'C'))
744 inqstrcpy("SMC", str->vid);
745 else {
746 c = sizeof(str->vid);
747 while (*cp && *cp != ' ' && --c)
748 ++cp;
749 c = *cp;
750 *cp = '\0';
751 inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
752 str->vid);
753 *cp = c;
754 while (*cp && *cp != ' ')
755 ++cp;
756 }
757 while (*cp == ' ')
758 ++cp;
759 /* last six chars reserved for vol type */
760 c = 0;
761 if (strlen(cp) > sizeof(str->pid)) {
762 c = cp[sizeof(str->pid)];
763 cp[sizeof(str->pid)] = '\0';
764 }
765 inqstrcpy (cp, str->pid);
766 if (c)
767 cp[sizeof(str->pid)] = c;
768 } else {
769 struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
770
771 inqstrcpy (mp->vname, str->vid);
772 /* last six chars reserved for vol type */
773 inqstrcpy (mp->model, str->pid);
774 }
775
776 if (tindex < ARRAY_SIZE(container_types)){
777 char *findit = str->pid;
778
779 for ( ; *findit != ' '; findit++); /* walk till we find a space */
780 /* RAID is superfluous in the context of a RAID device */
781 if (memcmp(findit-4, "RAID", 4) == 0)
782 *(findit -= 4) = ' ';
783 if (((findit - str->pid) + strlen(container_types[tindex]))
784 < (sizeof(str->pid) + sizeof(str->prl)))
785 inqstrcpy (container_types[tindex], findit + 1);
786 }
787 inqstrcpy ("V1.0", str->prl);
788 }
789
790 static void get_container_serial_callback(void *context, struct fib * fibptr)
791 {
792 struct aac_get_serial_resp * get_serial_reply;
793 struct scsi_cmnd * scsicmd;
794
795 BUG_ON(fibptr == NULL);
796
797 scsicmd = (struct scsi_cmnd *) context;
798 if (!aac_valid_context(scsicmd, fibptr))
799 return;
800
801 get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
802 /* Failure is irrelevant, using default value instead */
803 if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
804 char sp[13];
805 /* EVPD bit set */
806 sp[0] = INQD_PDT_DA;
807 sp[1] = scsicmd->cmnd[2];
808 sp[2] = 0;
809 sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
810 le32_to_cpu(get_serial_reply->uid));
811 scsi_sg_copy_from_buffer(scsicmd, sp, sizeof(sp));
812 }
813
814 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
815
816 aac_fib_complete(fibptr);
817 aac_fib_free(fibptr);
818 scsicmd->scsi_done(scsicmd);
819 }
820
821 /**
822 * aac_get_container_serial - get container serial, none blocking.
823 */
824 static int aac_get_container_serial(struct scsi_cmnd * scsicmd)
825 {
826 int status;
827 struct aac_get_serial *dinfo;
828 struct fib * cmd_fibcontext;
829 struct aac_dev * dev;
830
831 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
832
833 if (!(cmd_fibcontext = aac_fib_alloc(dev)))
834 return -ENOMEM;
835
836 aac_fib_init(cmd_fibcontext);
837 dinfo = (struct aac_get_serial *) fib_data(cmd_fibcontext);
838
839 dinfo->command = cpu_to_le32(VM_ContainerConfig);
840 dinfo->type = cpu_to_le32(CT_CID_TO_32BITS_UID);
841 dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
842
843 status = aac_fib_send(ContainerCommand,
844 cmd_fibcontext,
845 sizeof (struct aac_get_serial),
846 FsaNormal,
847 0, 1,
848 (fib_callback) get_container_serial_callback,
849 (void *) scsicmd);
850
851 /*
852 * Check that the command queued to the controller
853 */
854 if (status == -EINPROGRESS) {
855 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
856 return 0;
857 }
858
859 printk(KERN_WARNING "aac_get_container_serial: aac_fib_send failed with status: %d.\n", status);
860 aac_fib_complete(cmd_fibcontext);
861 aac_fib_free(cmd_fibcontext);
862 return -1;
863 }
864
865 /* Function: setinqserial
866 *
867 * Arguments: [1] pointer to void [1] int
868 *
869 * Purpose: Sets SCSI Unit Serial number.
870 * This is a fake. We should read a proper
871 * serial number from the container. <SuSE>But
872 * without docs it's quite hard to do it :-)
873 * So this will have to do in the meantime.</SuSE>
874 */
875
876 static int setinqserial(struct aac_dev *dev, void *data, int cid)
877 {
878 /*
879 * This breaks array migration.
880 */
881 return snprintf((char *)(data), sizeof(struct scsi_inq) - 4, "%08X%02X",
882 le32_to_cpu(dev->adapter_info.serial[0]), cid);
883 }
884
885 static inline void set_sense(struct sense_data *sense_data, u8 sense_key,
886 u8 sense_code, u8 a_sense_code, u8 bit_pointer, u16 field_pointer)
887 {
888 u8 *sense_buf = (u8 *)sense_data;
889 /* Sense data valid, err code 70h */
890 sense_buf[0] = 0x70; /* No info field */
891 sense_buf[1] = 0; /* Segment number, always zero */
892
893 sense_buf[2] = sense_key; /* Sense key */
894
895 sense_buf[12] = sense_code; /* Additional sense code */
896 sense_buf[13] = a_sense_code; /* Additional sense code qualifier */
897
898 if (sense_key == ILLEGAL_REQUEST) {
899 sense_buf[7] = 10; /* Additional sense length */
900
901 sense_buf[15] = bit_pointer;
902 /* Illegal parameter is in the parameter block */
903 if (sense_code == SENCODE_INVALID_CDB_FIELD)
904 sense_buf[15] |= 0xc0;/* Std sense key specific field */
905 /* Illegal parameter is in the CDB block */
906 sense_buf[16] = field_pointer >> 8; /* MSB */
907 sense_buf[17] = field_pointer; /* LSB */
908 } else
909 sense_buf[7] = 6; /* Additional sense length */
910 }
911
912 static int aac_bounds_32(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
913 {
914 if (lba & 0xffffffff00000000LL) {
915 int cid = scmd_id(cmd);
916 dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
917 cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
918 SAM_STAT_CHECK_CONDITION;
919 set_sense(&dev->fsa_dev[cid].sense_data,
920 HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
921 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
922 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
923 min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
924 SCSI_SENSE_BUFFERSIZE));
925 cmd->scsi_done(cmd);
926 return 1;
927 }
928 return 0;
929 }
930
931 static int aac_bounds_64(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
932 {
933 return 0;
934 }
935
936 static void io_callback(void *context, struct fib * fibptr);
937
938 static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
939 {
940 u16 fibsize;
941 struct aac_raw_io *readcmd;
942 aac_fib_init(fib);
943 readcmd = (struct aac_raw_io *) fib_data(fib);
944 readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
945 readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
946 readcmd->count = cpu_to_le32(count<<9);
947 readcmd->cid = cpu_to_le16(scmd_id(cmd));
948 readcmd->flags = cpu_to_le16(IO_TYPE_READ);
949 readcmd->bpTotal = 0;
950 readcmd->bpComplete = 0;
951
952 aac_build_sgraw(cmd, &readcmd->sg);
953 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
954 BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
955 /*
956 * Now send the Fib to the adapter
957 */
958 return aac_fib_send(ContainerRawIo,
959 fib,
960 fibsize,
961 FsaNormal,
962 0, 1,
963 (fib_callback) io_callback,
964 (void *) cmd);
965 }
966
967 static int aac_read_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
968 {
969 u16 fibsize;
970 struct aac_read64 *readcmd;
971 aac_fib_init(fib);
972 readcmd = (struct aac_read64 *) fib_data(fib);
973 readcmd->command = cpu_to_le32(VM_CtHostRead64);
974 readcmd->cid = cpu_to_le16(scmd_id(cmd));
975 readcmd->sector_count = cpu_to_le16(count);
976 readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
977 readcmd->pad = 0;
978 readcmd->flags = 0;
979
980 aac_build_sg64(cmd, &readcmd->sg);
981 fibsize = sizeof(struct aac_read64) +
982 ((le32_to_cpu(readcmd->sg.count) - 1) *
983 sizeof (struct sgentry64));
984 BUG_ON (fibsize > (fib->dev->max_fib_size -
985 sizeof(struct aac_fibhdr)));
986 /*
987 * Now send the Fib to the adapter
988 */
989 return aac_fib_send(ContainerCommand64,
990 fib,
991 fibsize,
992 FsaNormal,
993 0, 1,
994 (fib_callback) io_callback,
995 (void *) cmd);
996 }
997
998 static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
999 {
1000 u16 fibsize;
1001 struct aac_read *readcmd;
1002 aac_fib_init(fib);
1003 readcmd = (struct aac_read *) fib_data(fib);
1004 readcmd->command = cpu_to_le32(VM_CtBlockRead);
1005 readcmd->cid = cpu_to_le32(scmd_id(cmd));
1006 readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1007 readcmd->count = cpu_to_le32(count * 512);
1008
1009 aac_build_sg(cmd, &readcmd->sg);
1010 fibsize = sizeof(struct aac_read) +
1011 ((le32_to_cpu(readcmd->sg.count) - 1) *
1012 sizeof (struct sgentry));
1013 BUG_ON (fibsize > (fib->dev->max_fib_size -
1014 sizeof(struct aac_fibhdr)));
1015 /*
1016 * Now send the Fib to the adapter
1017 */
1018 return aac_fib_send(ContainerCommand,
1019 fib,
1020 fibsize,
1021 FsaNormal,
1022 0, 1,
1023 (fib_callback) io_callback,
1024 (void *) cmd);
1025 }
1026
1027 static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1028 {
1029 u16 fibsize;
1030 struct aac_raw_io *writecmd;
1031 aac_fib_init(fib);
1032 writecmd = (struct aac_raw_io *) fib_data(fib);
1033 writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1034 writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1035 writecmd->count = cpu_to_le32(count<<9);
1036 writecmd->cid = cpu_to_le16(scmd_id(cmd));
1037 writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
1038 (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
1039 cpu_to_le16(IO_TYPE_WRITE|IO_SUREWRITE) :
1040 cpu_to_le16(IO_TYPE_WRITE);
1041 writecmd->bpTotal = 0;
1042 writecmd->bpComplete = 0;
1043
1044 aac_build_sgraw(cmd, &writecmd->sg);
1045 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1046 BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
1047 /*
1048 * Now send the Fib to the adapter
1049 */
1050 return aac_fib_send(ContainerRawIo,
1051 fib,
1052 fibsize,
1053 FsaNormal,
1054 0, 1,
1055 (fib_callback) io_callback,
1056 (void *) cmd);
1057 }
1058
1059 static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1060 {
1061 u16 fibsize;
1062 struct aac_write64 *writecmd;
1063 aac_fib_init(fib);
1064 writecmd = (struct aac_write64 *) fib_data(fib);
1065 writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1066 writecmd->cid = cpu_to_le16(scmd_id(cmd));
1067 writecmd->sector_count = cpu_to_le16(count);
1068 writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1069 writecmd->pad = 0;
1070 writecmd->flags = 0;
1071
1072 aac_build_sg64(cmd, &writecmd->sg);
1073 fibsize = sizeof(struct aac_write64) +
1074 ((le32_to_cpu(writecmd->sg.count) - 1) *
1075 sizeof (struct sgentry64));
1076 BUG_ON (fibsize > (fib->dev->max_fib_size -
1077 sizeof(struct aac_fibhdr)));
1078 /*
1079 * Now send the Fib to the adapter
1080 */
1081 return aac_fib_send(ContainerCommand64,
1082 fib,
1083 fibsize,
1084 FsaNormal,
1085 0, 1,
1086 (fib_callback) io_callback,
1087 (void *) cmd);
1088 }
1089
1090 static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1091 {
1092 u16 fibsize;
1093 struct aac_write *writecmd;
1094 aac_fib_init(fib);
1095 writecmd = (struct aac_write *) fib_data(fib);
1096 writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1097 writecmd->cid = cpu_to_le32(scmd_id(cmd));
1098 writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1099 writecmd->count = cpu_to_le32(count * 512);
1100 writecmd->sg.count = cpu_to_le32(1);
1101 /* ->stable is not used - it did mean which type of write */
1102
1103 aac_build_sg(cmd, &writecmd->sg);
1104 fibsize = sizeof(struct aac_write) +
1105 ((le32_to_cpu(writecmd->sg.count) - 1) *
1106 sizeof (struct sgentry));
1107 BUG_ON (fibsize > (fib->dev->max_fib_size -
1108 sizeof(struct aac_fibhdr)));
1109 /*
1110 * Now send the Fib to the adapter
1111 */
1112 return aac_fib_send(ContainerCommand,
1113 fib,
1114 fibsize,
1115 FsaNormal,
1116 0, 1,
1117 (fib_callback) io_callback,
1118 (void *) cmd);
1119 }
1120
1121 static struct aac_srb * aac_scsi_common(struct fib * fib, struct scsi_cmnd * cmd)
1122 {
1123 struct aac_srb * srbcmd;
1124 u32 flag;
1125 u32 timeout;
1126
1127 aac_fib_init(fib);
1128 switch(cmd->sc_data_direction){
1129 case DMA_TO_DEVICE:
1130 flag = SRB_DataOut;
1131 break;
1132 case DMA_BIDIRECTIONAL:
1133 flag = SRB_DataIn | SRB_DataOut;
1134 break;
1135 case DMA_FROM_DEVICE:
1136 flag = SRB_DataIn;
1137 break;
1138 case DMA_NONE:
1139 default: /* shuts up some versions of gcc */
1140 flag = SRB_NoDataXfer;
1141 break;
1142 }
1143
1144 srbcmd = (struct aac_srb*) fib_data(fib);
1145 srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1146 srbcmd->channel = cpu_to_le32(aac_logical_to_phys(scmd_channel(cmd)));
1147 srbcmd->id = cpu_to_le32(scmd_id(cmd));
1148 srbcmd->lun = cpu_to_le32(cmd->device->lun);
1149 srbcmd->flags = cpu_to_le32(flag);
1150 timeout = cmd->request->timeout/HZ;
1151 if (timeout == 0)
1152 timeout = 1;
1153 srbcmd->timeout = cpu_to_le32(timeout); // timeout in seconds
1154 srbcmd->retry_limit = 0; /* Obsolete parameter */
1155 srbcmd->cdb_size = cpu_to_le32(cmd->cmd_len);
1156 return srbcmd;
1157 }
1158
1159 static void aac_srb_callback(void *context, struct fib * fibptr);
1160
1161 static int aac_scsi_64(struct fib * fib, struct scsi_cmnd * cmd)
1162 {
1163 u16 fibsize;
1164 struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1165
1166 aac_build_sg64(cmd, (struct sgmap64*) &srbcmd->sg);
1167 srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1168
1169 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1170 memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1171 /*
1172 * Build Scatter/Gather list
1173 */
1174 fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
1175 ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
1176 sizeof (struct sgentry64));
1177 BUG_ON (fibsize > (fib->dev->max_fib_size -
1178 sizeof(struct aac_fibhdr)));
1179
1180 /*
1181 * Now send the Fib to the adapter
1182 */
1183 return aac_fib_send(ScsiPortCommand64, fib,
1184 fibsize, FsaNormal, 0, 1,
1185 (fib_callback) aac_srb_callback,
1186 (void *) cmd);
1187 }
1188
1189 static int aac_scsi_32(struct fib * fib, struct scsi_cmnd * cmd)
1190 {
1191 u16 fibsize;
1192 struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1193
1194 aac_build_sg(cmd, (struct sgmap*)&srbcmd->sg);
1195 srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1196
1197 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1198 memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1199 /*
1200 * Build Scatter/Gather list
1201 */
1202 fibsize = sizeof (struct aac_srb) +
1203 (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
1204 sizeof (struct sgentry));
1205 BUG_ON (fibsize > (fib->dev->max_fib_size -
1206 sizeof(struct aac_fibhdr)));
1207
1208 /*
1209 * Now send the Fib to the adapter
1210 */
1211 return aac_fib_send(ScsiPortCommand, fib, fibsize, FsaNormal, 0, 1,
1212 (fib_callback) aac_srb_callback, (void *) cmd);
1213 }
1214
1215 static int aac_scsi_32_64(struct fib * fib, struct scsi_cmnd * cmd)
1216 {
1217 if ((sizeof(dma_addr_t) > 4) && fib->dev->needs_dac &&
1218 (fib->dev->adapter_info.options & AAC_OPT_SGMAP_HOST64))
1219 return FAILED;
1220 return aac_scsi_32(fib, cmd);
1221 }
1222
1223 int aac_get_adapter_info(struct aac_dev* dev)
1224 {
1225 struct fib* fibptr;
1226 int rcode;
1227 u32 tmp;
1228 struct aac_adapter_info *info;
1229 struct aac_bus_info *command;
1230 struct aac_bus_info_response *bus_info;
1231
1232 if (!(fibptr = aac_fib_alloc(dev)))
1233 return -ENOMEM;
1234
1235 aac_fib_init(fibptr);
1236 info = (struct aac_adapter_info *) fib_data(fibptr);
1237 memset(info,0,sizeof(*info));
1238
1239 rcode = aac_fib_send(RequestAdapterInfo,
1240 fibptr,
1241 sizeof(*info),
1242 FsaNormal,
1243 -1, 1, /* First `interrupt' command uses special wait */
1244 NULL,
1245 NULL);
1246
1247 if (rcode < 0) {
1248 aac_fib_complete(fibptr);
1249 aac_fib_free(fibptr);
1250 return rcode;
1251 }
1252 memcpy(&dev->adapter_info, info, sizeof(*info));
1253
1254 if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
1255 struct aac_supplement_adapter_info * sinfo;
1256
1257 aac_fib_init(fibptr);
1258
1259 sinfo = (struct aac_supplement_adapter_info *) fib_data(fibptr);
1260
1261 memset(sinfo,0,sizeof(*sinfo));
1262
1263 rcode = aac_fib_send(RequestSupplementAdapterInfo,
1264 fibptr,
1265 sizeof(*sinfo),
1266 FsaNormal,
1267 1, 1,
1268 NULL,
1269 NULL);
1270
1271 if (rcode >= 0)
1272 memcpy(&dev->supplement_adapter_info, sinfo, sizeof(*sinfo));
1273 }
1274
1275
1276 /*
1277 * GetBusInfo
1278 */
1279
1280 aac_fib_init(fibptr);
1281
1282 bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
1283
1284 memset(bus_info, 0, sizeof(*bus_info));
1285
1286 command = (struct aac_bus_info *)bus_info;
1287
1288 command->Command = cpu_to_le32(VM_Ioctl);
1289 command->ObjType = cpu_to_le32(FT_DRIVE);
1290 command->MethodId = cpu_to_le32(1);
1291 command->CtlCmd = cpu_to_le32(GetBusInfo);
1292
1293 rcode = aac_fib_send(ContainerCommand,
1294 fibptr,
1295 sizeof (*bus_info),
1296 FsaNormal,
1297 1, 1,
1298 NULL, NULL);
1299
1300 /* reasoned default */
1301 dev->maximum_num_physicals = 16;
1302 if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
1303 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
1304 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
1305 }
1306
1307 if (!dev->in_reset) {
1308 char buffer[16];
1309 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
1310 printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
1311 dev->name,
1312 dev->id,
1313 tmp>>24,
1314 (tmp>>16)&0xff,
1315 tmp&0xff,
1316 le32_to_cpu(dev->adapter_info.kernelbuild),
1317 (int)sizeof(dev->supplement_adapter_info.BuildDate),
1318 dev->supplement_adapter_info.BuildDate);
1319 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
1320 printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
1321 dev->name, dev->id,
1322 tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1323 le32_to_cpu(dev->adapter_info.monitorbuild));
1324 tmp = le32_to_cpu(dev->adapter_info.biosrev);
1325 printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
1326 dev->name, dev->id,
1327 tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1328 le32_to_cpu(dev->adapter_info.biosbuild));
1329 buffer[0] = '\0';
1330 if (aac_get_serial_number(
1331 shost_to_class(dev->scsi_host_ptr), buffer))
1332 printk(KERN_INFO "%s%d: serial %s",
1333 dev->name, dev->id, buffer);
1334 if (dev->supplement_adapter_info.VpdInfo.Tsid[0]) {
1335 printk(KERN_INFO "%s%d: TSID %.*s\n",
1336 dev->name, dev->id,
1337 (int)sizeof(dev->supplement_adapter_info.VpdInfo.Tsid),
1338 dev->supplement_adapter_info.VpdInfo.Tsid);
1339 }
1340 if (!aac_check_reset || ((aac_check_reset == 1) &&
1341 (dev->supplement_adapter_info.SupportedOptions2 &
1342 AAC_OPTION_IGNORE_RESET))) {
1343 printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
1344 dev->name, dev->id);
1345 }
1346 }
1347
1348 dev->cache_protected = 0;
1349 dev->jbod = ((dev->supplement_adapter_info.FeatureBits &
1350 AAC_FEATURE_JBOD) != 0);
1351 dev->nondasd_support = 0;
1352 dev->raid_scsi_mode = 0;
1353 if(dev->adapter_info.options & AAC_OPT_NONDASD)
1354 dev->nondasd_support = 1;
1355
1356 /*
1357 * If the firmware supports ROMB RAID/SCSI mode and we are currently
1358 * in RAID/SCSI mode, set the flag. For now if in this mode we will
1359 * force nondasd support on. If we decide to allow the non-dasd flag
1360 * additional changes changes will have to be made to support
1361 * RAID/SCSI. the function aac_scsi_cmd in this module will have to be
1362 * changed to support the new dev->raid_scsi_mode flag instead of
1363 * leaching off of the dev->nondasd_support flag. Also in linit.c the
1364 * function aac_detect will have to be modified where it sets up the
1365 * max number of channels based on the aac->nondasd_support flag only.
1366 */
1367 if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
1368 (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
1369 dev->nondasd_support = 1;
1370 dev->raid_scsi_mode = 1;
1371 }
1372 if (dev->raid_scsi_mode != 0)
1373 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
1374 dev->name, dev->id);
1375
1376 if (nondasd != -1)
1377 dev->nondasd_support = (nondasd!=0);
1378 if (dev->nondasd_support && !dev->in_reset)
1379 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
1380
1381 if (dma_get_required_mask(&dev->pdev->dev) > DMA_32BIT_MASK)
1382 dev->needs_dac = 1;
1383 dev->dac_support = 0;
1384 if ((sizeof(dma_addr_t) > 4) && dev->needs_dac &&
1385 (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)) {
1386 if (!dev->in_reset)
1387 printk(KERN_INFO "%s%d: 64bit support enabled.\n",
1388 dev->name, dev->id);
1389 dev->dac_support = 1;
1390 }
1391
1392 if(dacmode != -1) {
1393 dev->dac_support = (dacmode!=0);
1394 }
1395
1396 /* avoid problems with AAC_QUIRK_SCSI_32 controllers */
1397 if (dev->dac_support && (aac_get_driver_ident(dev->cardtype)->quirks
1398 & AAC_QUIRK_SCSI_32)) {
1399 dev->nondasd_support = 0;
1400 dev->jbod = 0;
1401 expose_physicals = 0;
1402 }
1403
1404 if(dev->dac_support != 0) {
1405 if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(64)) &&
1406 !pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(64))) {
1407 if (!dev->in_reset)
1408 printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
1409 dev->name, dev->id);
1410 } else if (!pci_set_dma_mask(dev->pdev, DMA_32BIT_MASK) &&
1411 !pci_set_consistent_dma_mask(dev->pdev, DMA_32BIT_MASK)) {
1412 printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
1413 dev->name, dev->id);
1414 dev->dac_support = 0;
1415 } else {
1416 printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
1417 dev->name, dev->id);
1418 rcode = -ENOMEM;
1419 }
1420 }
1421 /*
1422 * Deal with configuring for the individualized limits of each packet
1423 * interface.
1424 */
1425 dev->a_ops.adapter_scsi = (dev->dac_support)
1426 ? ((aac_get_driver_ident(dev->cardtype)->quirks & AAC_QUIRK_SCSI_32)
1427 ? aac_scsi_32_64
1428 : aac_scsi_64)
1429 : aac_scsi_32;
1430 if (dev->raw_io_interface) {
1431 dev->a_ops.adapter_bounds = (dev->raw_io_64)
1432 ? aac_bounds_64
1433 : aac_bounds_32;
1434 dev->a_ops.adapter_read = aac_read_raw_io;
1435 dev->a_ops.adapter_write = aac_write_raw_io;
1436 } else {
1437 dev->a_ops.adapter_bounds = aac_bounds_32;
1438 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
1439 sizeof(struct aac_fibhdr) -
1440 sizeof(struct aac_write) + sizeof(struct sgentry)) /
1441 sizeof(struct sgentry);
1442 if (dev->dac_support) {
1443 dev->a_ops.adapter_read = aac_read_block64;
1444 dev->a_ops.adapter_write = aac_write_block64;
1445 /*
1446 * 38 scatter gather elements
1447 */
1448 dev->scsi_host_ptr->sg_tablesize =
1449 (dev->max_fib_size -
1450 sizeof(struct aac_fibhdr) -
1451 sizeof(struct aac_write64) +
1452 sizeof(struct sgentry64)) /
1453 sizeof(struct sgentry64);
1454 } else {
1455 dev->a_ops.adapter_read = aac_read_block;
1456 dev->a_ops.adapter_write = aac_write_block;
1457 }
1458 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
1459 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
1460 /*
1461 * Worst case size that could cause sg overflow when
1462 * we break up SG elements that are larger than 64KB.
1463 * Would be nice if we could tell the SCSI layer what
1464 * the maximum SG element size can be. Worst case is
1465 * (sg_tablesize-1) 4KB elements with one 64KB
1466 * element.
1467 * 32bit -> 468 or 238KB 64bit -> 424 or 212KB
1468 */
1469 dev->scsi_host_ptr->max_sectors =
1470 (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
1471 }
1472 }
1473
1474 aac_fib_complete(fibptr);
1475 aac_fib_free(fibptr);
1476
1477 return rcode;
1478 }
1479
1480
1481 static void io_callback(void *context, struct fib * fibptr)
1482 {
1483 struct aac_dev *dev;
1484 struct aac_read_reply *readreply;
1485 struct scsi_cmnd *scsicmd;
1486 u32 cid;
1487
1488 scsicmd = (struct scsi_cmnd *) context;
1489
1490 if (!aac_valid_context(scsicmd, fibptr))
1491 return;
1492
1493 dev = fibptr->dev;
1494 cid = scmd_id(scsicmd);
1495
1496 if (nblank(dprintk(x))) {
1497 u64 lba;
1498 switch (scsicmd->cmnd[0]) {
1499 case WRITE_6:
1500 case READ_6:
1501 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1502 (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1503 break;
1504 case WRITE_16:
1505 case READ_16:
1506 lba = ((u64)scsicmd->cmnd[2] << 56) |
1507 ((u64)scsicmd->cmnd[3] << 48) |
1508 ((u64)scsicmd->cmnd[4] << 40) |
1509 ((u64)scsicmd->cmnd[5] << 32) |
1510 ((u64)scsicmd->cmnd[6] << 24) |
1511 (scsicmd->cmnd[7] << 16) |
1512 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1513 break;
1514 case WRITE_12:
1515 case READ_12:
1516 lba = ((u64)scsicmd->cmnd[2] << 24) |
1517 (scsicmd->cmnd[3] << 16) |
1518 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1519 break;
1520 default:
1521 lba = ((u64)scsicmd->cmnd[2] << 24) |
1522 (scsicmd->cmnd[3] << 16) |
1523 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1524 break;
1525 }
1526 printk(KERN_DEBUG
1527 "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
1528 smp_processor_id(), (unsigned long long)lba, jiffies);
1529 }
1530
1531 BUG_ON(fibptr == NULL);
1532
1533 scsi_dma_unmap(scsicmd);
1534
1535 readreply = (struct aac_read_reply *)fib_data(fibptr);
1536 switch (le32_to_cpu(readreply->status)) {
1537 case ST_OK:
1538 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1539 SAM_STAT_GOOD;
1540 dev->fsa_dev[cid].sense_data.sense_key = NO_SENSE;
1541 break;
1542 case ST_NOT_READY:
1543 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1544 SAM_STAT_CHECK_CONDITION;
1545 set_sense(&dev->fsa_dev[cid].sense_data, NOT_READY,
1546 SENCODE_BECOMING_READY, ASENCODE_BECOMING_READY, 0, 0);
1547 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1548 min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1549 SCSI_SENSE_BUFFERSIZE));
1550 break;
1551 default:
1552 #ifdef AAC_DETAILED_STATUS_INFO
1553 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
1554 le32_to_cpu(readreply->status));
1555 #endif
1556 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1557 SAM_STAT_CHECK_CONDITION;
1558 set_sense(&dev->fsa_dev[cid].sense_data,
1559 HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1560 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1561 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1562 min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1563 SCSI_SENSE_BUFFERSIZE));
1564 break;
1565 }
1566 aac_fib_complete(fibptr);
1567 aac_fib_free(fibptr);
1568
1569 scsicmd->scsi_done(scsicmd);
1570 }
1571
1572 static int aac_read(struct scsi_cmnd * scsicmd)
1573 {
1574 u64 lba;
1575 u32 count;
1576 int status;
1577 struct aac_dev *dev;
1578 struct fib * cmd_fibcontext;
1579
1580 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1581 /*
1582 * Get block address and transfer length
1583 */
1584 switch (scsicmd->cmnd[0]) {
1585 case READ_6:
1586 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", scmd_id(scsicmd)));
1587
1588 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1589 (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1590 count = scsicmd->cmnd[4];
1591
1592 if (count == 0)
1593 count = 256;
1594 break;
1595 case READ_16:
1596 dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", scmd_id(scsicmd)));
1597
1598 lba = ((u64)scsicmd->cmnd[2] << 56) |
1599 ((u64)scsicmd->cmnd[3] << 48) |
1600 ((u64)scsicmd->cmnd[4] << 40) |
1601 ((u64)scsicmd->cmnd[5] << 32) |
1602 ((u64)scsicmd->cmnd[6] << 24) |
1603 (scsicmd->cmnd[7] << 16) |
1604 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1605 count = (scsicmd->cmnd[10] << 24) |
1606 (scsicmd->cmnd[11] << 16) |
1607 (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1608 break;
1609 case READ_12:
1610 dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", scmd_id(scsicmd)));
1611
1612 lba = ((u64)scsicmd->cmnd[2] << 24) |
1613 (scsicmd->cmnd[3] << 16) |
1614 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1615 count = (scsicmd->cmnd[6] << 24) |
1616 (scsicmd->cmnd[7] << 16) |
1617 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1618 break;
1619 default:
1620 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", scmd_id(scsicmd)));
1621
1622 lba = ((u64)scsicmd->cmnd[2] << 24) |
1623 (scsicmd->cmnd[3] << 16) |
1624 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1625 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1626 break;
1627 }
1628 dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
1629 smp_processor_id(), (unsigned long long)lba, jiffies));
1630 if (aac_adapter_bounds(dev,scsicmd,lba))
1631 return 0;
1632 /*
1633 * Alocate and initialize a Fib
1634 */
1635 if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1636 return -1;
1637 }
1638
1639 status = aac_adapter_read(cmd_fibcontext, scsicmd, lba, count);
1640
1641 /*
1642 * Check that the command queued to the controller
1643 */
1644 if (status == -EINPROGRESS) {
1645 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1646 return 0;
1647 }
1648
1649 printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
1650 /*
1651 * For some reason, the Fib didn't queue, return QUEUE_FULL
1652 */
1653 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1654 scsicmd->scsi_done(scsicmd);
1655 aac_fib_complete(cmd_fibcontext);
1656 aac_fib_free(cmd_fibcontext);
1657 return 0;
1658 }
1659
1660 static int aac_write(struct scsi_cmnd * scsicmd)
1661 {
1662 u64 lba;
1663 u32 count;
1664 int fua;
1665 int status;
1666 struct aac_dev *dev;
1667 struct fib * cmd_fibcontext;
1668
1669 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1670 /*
1671 * Get block address and transfer length
1672 */
1673 if (scsicmd->cmnd[0] == WRITE_6) /* 6 byte command */
1674 {
1675 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1676 count = scsicmd->cmnd[4];
1677 if (count == 0)
1678 count = 256;
1679 fua = 0;
1680 } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
1681 dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", scmd_id(scsicmd)));
1682
1683 lba = ((u64)scsicmd->cmnd[2] << 56) |
1684 ((u64)scsicmd->cmnd[3] << 48) |
1685 ((u64)scsicmd->cmnd[4] << 40) |
1686 ((u64)scsicmd->cmnd[5] << 32) |
1687 ((u64)scsicmd->cmnd[6] << 24) |
1688 (scsicmd->cmnd[7] << 16) |
1689 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1690 count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
1691 (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1692 fua = scsicmd->cmnd[1] & 0x8;
1693 } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
1694 dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", scmd_id(scsicmd)));
1695
1696 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
1697 | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1698 count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
1699 | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1700 fua = scsicmd->cmnd[1] & 0x8;
1701 } else {
1702 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", scmd_id(scsicmd)));
1703 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1704 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1705 fua = scsicmd->cmnd[1] & 0x8;
1706 }
1707 dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
1708 smp_processor_id(), (unsigned long long)lba, jiffies));
1709 if (aac_adapter_bounds(dev,scsicmd,lba))
1710 return 0;
1711 /*
1712 * Allocate and initialize a Fib then setup a BlockWrite command
1713 */
1714 if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1715 scsicmd->result = DID_ERROR << 16;
1716 scsicmd->scsi_done(scsicmd);
1717 return 0;
1718 }
1719
1720 status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua);
1721
1722 /*
1723 * Check that the command queued to the controller
1724 */
1725 if (status == -EINPROGRESS) {
1726 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1727 return 0;
1728 }
1729
1730 printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
1731 /*
1732 * For some reason, the Fib didn't queue, return QUEUE_FULL
1733 */
1734 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1735 scsicmd->scsi_done(scsicmd);
1736
1737 aac_fib_complete(cmd_fibcontext);
1738 aac_fib_free(cmd_fibcontext);
1739 return 0;
1740 }
1741
1742 static void synchronize_callback(void *context, struct fib *fibptr)
1743 {
1744 struct aac_synchronize_reply *synchronizereply;
1745 struct scsi_cmnd *cmd;
1746
1747 cmd = context;
1748
1749 if (!aac_valid_context(cmd, fibptr))
1750 return;
1751
1752 dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1753 smp_processor_id(), jiffies));
1754 BUG_ON(fibptr == NULL);
1755
1756
1757 synchronizereply = fib_data(fibptr);
1758 if (le32_to_cpu(synchronizereply->status) == CT_OK)
1759 cmd->result = DID_OK << 16 |
1760 COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1761 else {
1762 struct scsi_device *sdev = cmd->device;
1763 struct aac_dev *dev = fibptr->dev;
1764 u32 cid = sdev_id(sdev);
1765 printk(KERN_WARNING
1766 "synchronize_callback: synchronize failed, status = %d\n",
1767 le32_to_cpu(synchronizereply->status));
1768 cmd->result = DID_OK << 16 |
1769 COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1770 set_sense(&dev->fsa_dev[cid].sense_data,
1771 HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1772 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1773 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1774 min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1775 SCSI_SENSE_BUFFERSIZE));
1776 }
1777
1778 aac_fib_complete(fibptr);
1779 aac_fib_free(fibptr);
1780 cmd->scsi_done(cmd);
1781 }
1782
1783 static int aac_synchronize(struct scsi_cmnd *scsicmd)
1784 {
1785 int status;
1786 struct fib *cmd_fibcontext;
1787 struct aac_synchronize *synchronizecmd;
1788 struct scsi_cmnd *cmd;
1789 struct scsi_device *sdev = scsicmd->device;
1790 int active = 0;
1791 struct aac_dev *aac;
1792 u64 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) |
1793 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1794 u32 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1795 unsigned long flags;
1796
1797 /*
1798 * Wait for all outstanding queued commands to complete to this
1799 * specific target (block).
1800 */
1801 spin_lock_irqsave(&sdev->list_lock, flags);
1802 list_for_each_entry(cmd, &sdev->cmd_list, list)
1803 if (cmd->SCp.phase == AAC_OWNER_FIRMWARE) {
1804 u64 cmnd_lba;
1805 u32 cmnd_count;
1806
1807 if (cmd->cmnd[0] == WRITE_6) {
1808 cmnd_lba = ((cmd->cmnd[1] & 0x1F) << 16) |
1809 (cmd->cmnd[2] << 8) |
1810 cmd->cmnd[3];
1811 cmnd_count = cmd->cmnd[4];
1812 if (cmnd_count == 0)
1813 cmnd_count = 256;
1814 } else if (cmd->cmnd[0] == WRITE_16) {
1815 cmnd_lba = ((u64)cmd->cmnd[2] << 56) |
1816 ((u64)cmd->cmnd[3] << 48) |
1817 ((u64)cmd->cmnd[4] << 40) |
1818 ((u64)cmd->cmnd[5] << 32) |
1819 ((u64)cmd->cmnd[6] << 24) |
1820 (cmd->cmnd[7] << 16) |
1821 (cmd->cmnd[8] << 8) |
1822 cmd->cmnd[9];
1823 cmnd_count = (cmd->cmnd[10] << 24) |
1824 (cmd->cmnd[11] << 16) |
1825 (cmd->cmnd[12] << 8) |
1826 cmd->cmnd[13];
1827 } else if (cmd->cmnd[0] == WRITE_12) {
1828 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1829 (cmd->cmnd[3] << 16) |
1830 (cmd->cmnd[4] << 8) |
1831 cmd->cmnd[5];
1832 cmnd_count = (cmd->cmnd[6] << 24) |
1833 (cmd->cmnd[7] << 16) |
1834 (cmd->cmnd[8] << 8) |
1835 cmd->cmnd[9];
1836 } else if (cmd->cmnd[0] == WRITE_10) {
1837 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1838 (cmd->cmnd[3] << 16) |
1839 (cmd->cmnd[4] << 8) |
1840 cmd->cmnd[5];
1841 cmnd_count = (cmd->cmnd[7] << 8) |
1842 cmd->cmnd[8];
1843 } else
1844 continue;
1845 if (((cmnd_lba + cmnd_count) < lba) ||
1846 (count && ((lba + count) < cmnd_lba)))
1847 continue;
1848 ++active;
1849 break;
1850 }
1851
1852 spin_unlock_irqrestore(&sdev->list_lock, flags);
1853
1854 /*
1855 * Yield the processor (requeue for later)
1856 */
1857 if (active)
1858 return SCSI_MLQUEUE_DEVICE_BUSY;
1859
1860 aac = (struct aac_dev *)sdev->host->hostdata;
1861 if (aac->in_reset)
1862 return SCSI_MLQUEUE_HOST_BUSY;
1863
1864 /*
1865 * Allocate and initialize a Fib
1866 */
1867 if (!(cmd_fibcontext = aac_fib_alloc(aac)))
1868 return SCSI_MLQUEUE_HOST_BUSY;
1869
1870 aac_fib_init(cmd_fibcontext);
1871
1872 synchronizecmd = fib_data(cmd_fibcontext);
1873 synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1874 synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1875 synchronizecmd->cid = cpu_to_le32(scmd_id(scsicmd));
1876 synchronizecmd->count =
1877 cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1878
1879 /*
1880 * Now send the Fib to the adapter
1881 */
1882 status = aac_fib_send(ContainerCommand,
1883 cmd_fibcontext,
1884 sizeof(struct aac_synchronize),
1885 FsaNormal,
1886 0, 1,
1887 (fib_callback)synchronize_callback,
1888 (void *)scsicmd);
1889
1890 /*
1891 * Check that the command queued to the controller
1892 */
1893 if (status == -EINPROGRESS) {
1894 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1895 return 0;
1896 }
1897
1898 printk(KERN_WARNING
1899 "aac_synchronize: aac_fib_send failed with status: %d.\n", status);
1900 aac_fib_complete(cmd_fibcontext);
1901 aac_fib_free(cmd_fibcontext);
1902 return SCSI_MLQUEUE_HOST_BUSY;
1903 }
1904
1905 static void aac_start_stop_callback(void *context, struct fib *fibptr)
1906 {
1907 struct scsi_cmnd *scsicmd = context;
1908
1909 if (!aac_valid_context(scsicmd, fibptr))
1910 return;
1911
1912 BUG_ON(fibptr == NULL);
1913
1914 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1915
1916 aac_fib_complete(fibptr);
1917 aac_fib_free(fibptr);
1918 scsicmd->scsi_done(scsicmd);
1919 }
1920
1921 static int aac_start_stop(struct scsi_cmnd *scsicmd)
1922 {
1923 int status;
1924 struct fib *cmd_fibcontext;
1925 struct aac_power_management *pmcmd;
1926 struct scsi_device *sdev = scsicmd->device;
1927 struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
1928
1929 if (!(aac->supplement_adapter_info.SupportedOptions2 &
1930 AAC_OPTION_POWER_MANAGEMENT)) {
1931 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
1932 SAM_STAT_GOOD;
1933 scsicmd->scsi_done(scsicmd);
1934 return 0;
1935 }
1936
1937 if (aac->in_reset)
1938 return SCSI_MLQUEUE_HOST_BUSY;
1939
1940 /*
1941 * Allocate and initialize a Fib
1942 */
1943 cmd_fibcontext = aac_fib_alloc(aac);
1944 if (!cmd_fibcontext)
1945 return SCSI_MLQUEUE_HOST_BUSY;
1946
1947 aac_fib_init(cmd_fibcontext);
1948
1949 pmcmd = fib_data(cmd_fibcontext);
1950 pmcmd->command = cpu_to_le32(VM_ContainerConfig);
1951 pmcmd->type = cpu_to_le32(CT_POWER_MANAGEMENT);
1952 /* Eject bit ignored, not relevant */
1953 pmcmd->sub = (scsicmd->cmnd[4] & 1) ?
1954 cpu_to_le32(CT_PM_START_UNIT) : cpu_to_le32(CT_PM_STOP_UNIT);
1955 pmcmd->cid = cpu_to_le32(sdev_id(sdev));
1956 pmcmd->parm = (scsicmd->cmnd[1] & 1) ?
1957 cpu_to_le32(CT_PM_UNIT_IMMEDIATE) : 0;
1958
1959 /*
1960 * Now send the Fib to the adapter
1961 */
1962 status = aac_fib_send(ContainerCommand,
1963 cmd_fibcontext,
1964 sizeof(struct aac_power_management),
1965 FsaNormal,
1966 0, 1,
1967 (fib_callback)aac_start_stop_callback,
1968 (void *)scsicmd);
1969
1970 /*
1971 * Check that the command queued to the controller
1972 */
1973 if (status == -EINPROGRESS) {
1974 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1975 return 0;
1976 }
1977
1978 aac_fib_complete(cmd_fibcontext);
1979 aac_fib_free(cmd_fibcontext);
1980 return SCSI_MLQUEUE_HOST_BUSY;
1981 }
1982
1983 /**
1984 * aac_scsi_cmd() - Process SCSI command
1985 * @scsicmd: SCSI command block
1986 *
1987 * Emulate a SCSI command and queue the required request for the
1988 * aacraid firmware.
1989 */
1990
1991 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1992 {
1993 u32 cid;
1994 struct Scsi_Host *host = scsicmd->device->host;
1995 struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1996 struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1997
1998 if (fsa_dev_ptr == NULL)
1999 return -1;
2000 /*
2001 * If the bus, id or lun is out of range, return fail
2002 * Test does not apply to ID 16, the pseudo id for the controller
2003 * itself.
2004 */
2005 cid = scmd_id(scsicmd);
2006 if (cid != host->this_id) {
2007 if (scmd_channel(scsicmd) == CONTAINER_CHANNEL) {
2008 if((cid >= dev->maximum_num_containers) ||
2009 (scsicmd->device->lun != 0)) {
2010 scsicmd->result = DID_NO_CONNECT << 16;
2011 scsicmd->scsi_done(scsicmd);
2012 return 0;
2013 }
2014
2015 /*
2016 * If the target container doesn't exist, it may have
2017 * been newly created
2018 */
2019 if (((fsa_dev_ptr[cid].valid & 1) == 0) ||
2020 (fsa_dev_ptr[cid].sense_data.sense_key ==
2021 NOT_READY)) {
2022 switch (scsicmd->cmnd[0]) {
2023 case SERVICE_ACTION_IN:
2024 if (!(dev->raw_io_interface) ||
2025 !(dev->raw_io_64) ||
2026 ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
2027 break;
2028 case INQUIRY:
2029 case READ_CAPACITY:
2030 case TEST_UNIT_READY:
2031 if (dev->in_reset)
2032 return -1;
2033 return _aac_probe_container(scsicmd,
2034 aac_probe_container_callback2);
2035 default:
2036 break;
2037 }
2038 }
2039 } else { /* check for physical non-dasd devices */
2040 if (dev->nondasd_support || expose_physicals ||
2041 dev->jbod) {
2042 if (dev->in_reset)
2043 return -1;
2044 return aac_send_srb_fib(scsicmd);
2045 } else {
2046 scsicmd->result = DID_NO_CONNECT << 16;
2047 scsicmd->scsi_done(scsicmd);
2048 return 0;
2049 }
2050 }
2051 }
2052 /*
2053 * else Command for the controller itself
2054 */
2055 else if ((scsicmd->cmnd[0] != INQUIRY) && /* only INQUIRY & TUR cmnd supported for controller */
2056 (scsicmd->cmnd[0] != TEST_UNIT_READY))
2057 {
2058 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
2059 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2060 set_sense(&dev->fsa_dev[cid].sense_data,
2061 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
2062 ASENCODE_INVALID_COMMAND, 0, 0);
2063 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2064 min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
2065 SCSI_SENSE_BUFFERSIZE));
2066 scsicmd->scsi_done(scsicmd);
2067 return 0;
2068 }
2069
2070
2071 /* Handle commands here that don't really require going out to the adapter */
2072 switch (scsicmd->cmnd[0]) {
2073 case INQUIRY:
2074 {
2075 struct inquiry_data inq_data;
2076
2077 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", cid));
2078 memset(&inq_data, 0, sizeof (struct inquiry_data));
2079
2080 if ((scsicmd->cmnd[1] & 0x1) && aac_wwn) {
2081 char *arr = (char *)&inq_data;
2082
2083 /* EVPD bit set */
2084 arr[0] = (scmd_id(scsicmd) == host->this_id) ?
2085 INQD_PDT_PROC : INQD_PDT_DA;
2086 if (scsicmd->cmnd[2] == 0) {
2087 /* supported vital product data pages */
2088 arr[3] = 2;
2089 arr[4] = 0x0;
2090 arr[5] = 0x80;
2091 arr[1] = scsicmd->cmnd[2];
2092 scsi_sg_copy_from_buffer(scsicmd, &inq_data,
2093 sizeof(inq_data));
2094 scsicmd->result = DID_OK << 16 |
2095 COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2096 } else if (scsicmd->cmnd[2] == 0x80) {
2097 /* unit serial number page */
2098 arr[3] = setinqserial(dev, &arr[4],
2099 scmd_id(scsicmd));
2100 arr[1] = scsicmd->cmnd[2];
2101 scsi_sg_copy_from_buffer(scsicmd, &inq_data,
2102 sizeof(inq_data));
2103 if (aac_wwn != 2)
2104 return aac_get_container_serial(
2105 scsicmd);
2106 /* SLES 10 SP1 special */
2107 scsicmd->result = DID_OK << 16 |
2108 COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2109 } else {
2110 /* vpd page not implemented */
2111 scsicmd->result = DID_OK << 16 |
2112 COMMAND_COMPLETE << 8 |
2113 SAM_STAT_CHECK_CONDITION;
2114 set_sense(&dev->fsa_dev[cid].sense_data,
2115 ILLEGAL_REQUEST, SENCODE_INVALID_CDB_FIELD,
2116 ASENCODE_NO_SENSE, 7, 2);
2117 memcpy(scsicmd->sense_buffer,
2118 &dev->fsa_dev[cid].sense_data,
2119 min_t(size_t,
2120 sizeof(dev->fsa_dev[cid].sense_data),
2121 SCSI_SENSE_BUFFERSIZE));
2122 }
2123 scsicmd->scsi_done(scsicmd);
2124 return 0;
2125 }
2126 inq_data.inqd_ver = 2; /* claim compliance to SCSI-2 */
2127 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 */
2128 inq_data.inqd_len = 31;
2129 /*Format for "pad2" is RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */
2130 inq_data.inqd_pad2= 0x32 ; /*WBus16|Sync|CmdQue */
2131 /*
2132 * Set the Vendor, Product, and Revision Level
2133 * see: <vendor>.c i.e. aac.c
2134 */
2135 if (cid == host->this_id) {
2136 setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
2137 inq_data.inqd_pdt = INQD_PDT_PROC; /* Processor device */
2138 scsi_sg_copy_from_buffer(scsicmd, &inq_data,
2139 sizeof(inq_data));
2140 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2141 scsicmd->scsi_done(scsicmd);
2142 return 0;
2143 }
2144 if (dev->in_reset)
2145 return -1;
2146 setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
2147 inq_data.inqd_pdt = INQD_PDT_DA; /* Direct/random access device */
2148 scsi_sg_copy_from_buffer(scsicmd, &inq_data, sizeof(inq_data));
2149 return aac_get_container_name(scsicmd);
2150 }
2151 case SERVICE_ACTION_IN:
2152 if (!(dev->raw_io_interface) ||
2153 !(dev->raw_io_64) ||
2154 ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
2155 break;
2156 {
2157 u64 capacity;
2158 char cp[13];
2159 unsigned int alloc_len;
2160
2161 dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
2162 capacity = fsa_dev_ptr[cid].size - 1;
2163 cp[0] = (capacity >> 56) & 0xff;
2164 cp[1] = (capacity >> 48) & 0xff;
2165 cp[2] = (capacity >> 40) & 0xff;
2166 cp[3] = (capacity >> 32) & 0xff;
2167 cp[4] = (capacity >> 24) & 0xff;
2168 cp[5] = (capacity >> 16) & 0xff;
2169 cp[6] = (capacity >> 8) & 0xff;
2170 cp[7] = (capacity >> 0) & 0xff;
2171 cp[8] = 0;
2172 cp[9] = 0;
2173 cp[10] = 2;
2174 cp[11] = 0;
2175 cp[12] = 0;
2176
2177 alloc_len = ((scsicmd->cmnd[10] << 24)
2178 + (scsicmd->cmnd[11] << 16)
2179 + (scsicmd->cmnd[12] << 8) + scsicmd->cmnd[13]);
2180
2181 alloc_len = min_t(size_t, alloc_len, sizeof(cp));
2182 scsi_sg_copy_from_buffer(scsicmd, cp, alloc_len);
2183 if (alloc_len < scsi_bufflen(scsicmd))
2184 scsi_set_resid(scsicmd,
2185 scsi_bufflen(scsicmd) - alloc_len);
2186
2187 /* Do not cache partition table for arrays */
2188 scsicmd->device->removable = 1;
2189
2190 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2191 scsicmd->scsi_done(scsicmd);
2192
2193 return 0;
2194 }
2195
2196 case READ_CAPACITY:
2197 {
2198 u32 capacity;
2199 char cp[8];
2200
2201 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
2202 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
2203 capacity = fsa_dev_ptr[cid].size - 1;
2204 else
2205 capacity = (u32)-1;
2206
2207 cp[0] = (capacity >> 24) & 0xff;
2208 cp[1] = (capacity >> 16) & 0xff;
2209 cp[2] = (capacity >> 8) & 0xff;
2210 cp[3] = (capacity >> 0) & 0xff;
2211 cp[4] = 0;
2212 cp[5] = 0;
2213 cp[6] = 2;
2214 cp[7] = 0;
2215 scsi_sg_copy_from_buffer(scsicmd, cp, sizeof(cp));
2216 /* Do not cache partition table for arrays */
2217 scsicmd->device->removable = 1;
2218 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
2219 SAM_STAT_GOOD;
2220 scsicmd->scsi_done(scsicmd);
2221
2222 return 0;
2223 }
2224
2225 case MODE_SENSE:
2226 {
2227 char mode_buf[7];
2228 int mode_buf_length = 4;
2229
2230 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
2231 mode_buf[0] = 3; /* Mode data length */
2232 mode_buf[1] = 0; /* Medium type - default */
2233 mode_buf[2] = 0; /* Device-specific param,
2234 bit 8: 0/1 = write enabled/protected
2235 bit 4: 0/1 = FUA enabled */
2236 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2237 mode_buf[2] = 0x10;
2238 mode_buf[3] = 0; /* Block descriptor length */
2239 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2240 ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2241 mode_buf[0] = 6;
2242 mode_buf[4] = 8;
2243 mode_buf[5] = 1;
2244 mode_buf[6] = ((aac_cache & 6) == 2)
2245 ? 0 : 0x04; /* WCE */
2246 mode_buf_length = 7;
2247 if (mode_buf_length > scsicmd->cmnd[4])
2248 mode_buf_length = scsicmd->cmnd[4];
2249 }
2250 scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
2251 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2252 scsicmd->scsi_done(scsicmd);
2253
2254 return 0;
2255 }
2256 case MODE_SENSE_10:
2257 {
2258 char mode_buf[11];
2259 int mode_buf_length = 8;
2260
2261 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
2262 mode_buf[0] = 0; /* Mode data length (MSB) */
2263 mode_buf[1] = 6; /* Mode data length (LSB) */
2264 mode_buf[2] = 0; /* Medium type - default */
2265 mode_buf[3] = 0; /* Device-specific param,
2266 bit 8: 0/1 = write enabled/protected
2267 bit 4: 0/1 = FUA enabled */
2268 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2269 mode_buf[3] = 0x10;
2270 mode_buf[4] = 0; /* reserved */
2271 mode_buf[5] = 0; /* reserved */
2272 mode_buf[6] = 0; /* Block descriptor length (MSB) */
2273 mode_buf[7] = 0; /* Block descriptor length (LSB) */
2274 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2275 ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2276 mode_buf[1] = 9;
2277 mode_buf[8] = 8;
2278 mode_buf[9] = 1;
2279 mode_buf[10] = ((aac_cache & 6) == 2)
2280 ? 0 : 0x04; /* WCE */
2281 mode_buf_length = 11;
2282 if (mode_buf_length > scsicmd->cmnd[8])
2283 mode_buf_length = scsicmd->cmnd[8];
2284 }
2285 scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
2286
2287 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2288 scsicmd->scsi_done(scsicmd);
2289
2290 return 0;
2291 }
2292 case REQUEST_SENSE:
2293 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
2294 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
2295 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
2296 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2297 scsicmd->scsi_done(scsicmd);
2298 return 0;
2299
2300 case ALLOW_MEDIUM_REMOVAL:
2301 dprintk((KERN_DEBUG "LOCK command.\n"));
2302 if (scsicmd->cmnd[4])
2303 fsa_dev_ptr[cid].locked = 1;
2304 else
2305 fsa_dev_ptr[cid].locked = 0;
2306
2307 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2308 scsicmd->scsi_done(scsicmd);
2309 return 0;
2310 /*
2311 * These commands are all No-Ops
2312 */
2313 case TEST_UNIT_READY:
2314 if (fsa_dev_ptr[cid].sense_data.sense_key == NOT_READY) {
2315 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
2316 SAM_STAT_CHECK_CONDITION;
2317 set_sense(&dev->fsa_dev[cid].sense_data,
2318 NOT_READY, SENCODE_BECOMING_READY,
2319 ASENCODE_BECOMING_READY, 0, 0);
2320 memcpy(scsicmd->sense_buffer,
2321 &dev->fsa_dev[cid].sense_data,
2322 min_t(size_t,
2323 sizeof(dev->fsa_dev[cid].sense_data),
2324 SCSI_SENSE_BUFFERSIZE));
2325 scsicmd->scsi_done(scsicmd);
2326 return 0;
2327 }
2328 /* FALLTHRU */
2329 case RESERVE:
2330 case RELEASE:
2331 case REZERO_UNIT:
2332 case REASSIGN_BLOCKS:
2333 case SEEK_10:
2334 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2335 scsicmd->scsi_done(scsicmd);
2336 return 0;
2337
2338 case START_STOP:
2339 return aac_start_stop(scsicmd);
2340 }
2341
2342 switch (scsicmd->cmnd[0])
2343 {
2344 case READ_6:
2345 case READ_10:
2346 case READ_12:
2347 case READ_16:
2348 if (dev->in_reset)
2349 return -1;
2350 /*
2351 * Hack to keep track of ordinal number of the device that
2352 * corresponds to a container. Needed to convert
2353 * containers to /dev/sd device names
2354 */
2355
2356 if (scsicmd->request->rq_disk)
2357 strlcpy(fsa_dev_ptr[cid].devname,
2358 scsicmd->request->rq_disk->disk_name,
2359 min(sizeof(fsa_dev_ptr[cid].devname),
2360 sizeof(scsicmd->request->rq_disk->disk_name) + 1));
2361
2362 return aac_read(scsicmd);
2363
2364 case WRITE_6:
2365 case WRITE_10:
2366 case WRITE_12:
2367 case WRITE_16:
2368 if (dev->in_reset)
2369 return -1;
2370 return aac_write(scsicmd);
2371
2372 case SYNCHRONIZE_CACHE:
2373 if (((aac_cache & 6) == 6) && dev->cache_protected) {
2374 scsicmd->result = DID_OK << 16 |
2375 COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2376 scsicmd->scsi_done(scsicmd);
2377 return 0;
2378 }
2379 /* Issue FIB to tell Firmware to flush it's cache */
2380 if ((aac_cache & 6) != 2)
2381 return aac_synchronize(scsicmd);
2382 /* FALLTHRU */
2383 default:
2384 /*
2385 * Unhandled commands
2386 */
2387 dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
2388 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2389 set_sense(&dev->fsa_dev[cid].sense_data,
2390 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
2391 ASENCODE_INVALID_COMMAND, 0, 0);
2392 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2393 min_t(size_t,
2394 sizeof(dev->fsa_dev[cid].sense_data),
2395 SCSI_SENSE_BUFFERSIZE));
2396 scsicmd->scsi_done(scsicmd);
2397 return 0;
2398 }
2399 }
2400
2401 static int query_disk(struct aac_dev *dev, void __user *arg)
2402 {
2403 struct aac_query_disk qd;
2404 struct fsa_dev_info *fsa_dev_ptr;
2405
2406 fsa_dev_ptr = dev->fsa_dev;
2407 if (!fsa_dev_ptr)
2408 return -EBUSY;
2409 if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
2410 return -EFAULT;
2411 if (qd.cnum == -1)
2412 qd.cnum = qd.id;
2413 else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
2414 {
2415 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
2416 return -EINVAL;
2417 qd.instance = dev->scsi_host_ptr->host_no;
2418 qd.bus = 0;
2419 qd.id = CONTAINER_TO_ID(qd.cnum);
2420 qd.lun = CONTAINER_TO_LUN(qd.cnum);
2421 }
2422 else return -EINVAL;
2423
2424 qd.valid = fsa_dev_ptr[qd.cnum].valid != 0;
2425 qd.locked = fsa_dev_ptr[qd.cnum].locked;
2426 qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
2427
2428 if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
2429 qd.unmapped = 1;
2430 else
2431 qd.unmapped = 0;
2432
2433 strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
2434 min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
2435
2436 if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
2437 return -EFAULT;
2438 return 0;
2439 }
2440
2441 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
2442 {
2443 struct aac_delete_disk dd;
2444 struct fsa_dev_info *fsa_dev_ptr;
2445
2446 fsa_dev_ptr = dev->fsa_dev;
2447 if (!fsa_dev_ptr)
2448 return -EBUSY;
2449
2450 if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2451 return -EFAULT;
2452
2453 if (dd.cnum >= dev->maximum_num_containers)
2454 return -EINVAL;
2455 /*
2456 * Mark this container as being deleted.
2457 */
2458 fsa_dev_ptr[dd.cnum].deleted = 1;
2459 /*
2460 * Mark the container as no longer valid
2461 */
2462 fsa_dev_ptr[dd.cnum].valid = 0;
2463 return 0;
2464 }
2465
2466 static int delete_disk(struct aac_dev *dev, void __user *arg)
2467 {
2468 struct aac_delete_disk dd;
2469 struct fsa_dev_info *fsa_dev_ptr;
2470
2471 fsa_dev_ptr = dev->fsa_dev;
2472 if (!fsa_dev_ptr)
2473 return -EBUSY;
2474
2475 if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2476 return -EFAULT;
2477
2478 if (dd.cnum >= dev->maximum_num_containers)
2479 return -EINVAL;
2480 /*
2481 * If the container is locked, it can not be deleted by the API.
2482 */
2483 if (fsa_dev_ptr[dd.cnum].locked)
2484 return -EBUSY;
2485 else {
2486 /*
2487 * Mark the container as no longer being valid.
2488 */
2489 fsa_dev_ptr[dd.cnum].valid = 0;
2490 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
2491 return 0;
2492 }
2493 }
2494
2495 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
2496 {
2497 switch (cmd) {
2498 case FSACTL_QUERY_DISK:
2499 return query_disk(dev, arg);
2500 case FSACTL_DELETE_DISK:
2501 return delete_disk(dev, arg);
2502 case FSACTL_FORCE_DELETE_DISK:
2503 return force_delete_disk(dev, arg);
2504 case FSACTL_GET_CONTAINERS:
2505 return aac_get_containers(dev);
2506 default:
2507 return -ENOTTY;
2508 }
2509 }
2510
2511 /**
2512 *
2513 * aac_srb_callback
2514 * @context: the context set in the fib - here it is scsi cmd
2515 * @fibptr: pointer to the fib
2516 *
2517 * Handles the completion of a scsi command to a non dasd device
2518 *
2519 */
2520
2521 static void aac_srb_callback(void *context, struct fib * fibptr)
2522 {
2523 struct aac_dev *dev;
2524 struct aac_srb_reply *srbreply;
2525 struct scsi_cmnd *scsicmd;
2526
2527 scsicmd = (struct scsi_cmnd *) context;
2528
2529 if (!aac_valid_context(scsicmd, fibptr))
2530 return;
2531
2532 BUG_ON(fibptr == NULL);
2533
2534 dev = fibptr->dev;
2535
2536 srbreply = (struct aac_srb_reply *) fib_data(fibptr);
2537
2538 scsicmd->sense_buffer[0] = '\0'; /* Initialize sense valid flag to false */
2539 /*
2540 * Calculate resid for sg
2541 */
2542
2543 scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
2544 - le32_to_cpu(srbreply->data_xfer_length));
2545
2546 scsi_dma_unmap(scsicmd);
2547
2548 /*
2549 * First check the fib status
2550 */
2551
2552 if (le32_to_cpu(srbreply->status) != ST_OK){
2553 int len;
2554 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
2555 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2556 SCSI_SENSE_BUFFERSIZE);
2557 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2558 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2559 }
2560
2561 /*
2562 * Next check the srb status
2563 */
2564 switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
2565 case SRB_STATUS_ERROR_RECOVERY:
2566 case SRB_STATUS_PENDING:
2567 case SRB_STATUS_SUCCESS:
2568 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2569 break;
2570 case SRB_STATUS_DATA_OVERRUN:
2571 switch(scsicmd->cmnd[0]){
2572 case READ_6:
2573 case WRITE_6:
2574 case READ_10:
2575 case WRITE_10:
2576 case READ_12:
2577 case WRITE_12:
2578 case READ_16:
2579 case WRITE_16:
2580 if (le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow) {
2581 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
2582 } else {
2583 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
2584 }
2585 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2586 break;
2587 case INQUIRY: {
2588 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2589 break;
2590 }
2591 default:
2592 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2593 break;
2594 }
2595 break;
2596 case SRB_STATUS_ABORTED:
2597 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
2598 break;
2599 case SRB_STATUS_ABORT_FAILED:
2600 // Not sure about this one - but assuming the hba was trying to abort for some reason
2601 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
2602 break;
2603 case SRB_STATUS_PARITY_ERROR:
2604 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
2605 break;
2606 case SRB_STATUS_NO_DEVICE:
2607 case SRB_STATUS_INVALID_PATH_ID:
2608 case SRB_STATUS_INVALID_TARGET_ID:
2609 case SRB_STATUS_INVALID_LUN:
2610 case SRB_STATUS_SELECTION_TIMEOUT:
2611 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2612 break;
2613
2614 case SRB_STATUS_COMMAND_TIMEOUT:
2615 case SRB_STATUS_TIMEOUT:
2616 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
2617 break;
2618
2619 case SRB_STATUS_BUSY:
2620 scsicmd->result = DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
2621 break;
2622
2623 case SRB_STATUS_BUS_RESET:
2624 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
2625 break;
2626
2627 case SRB_STATUS_MESSAGE_REJECTED:
2628 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
2629 break;
2630 case SRB_STATUS_REQUEST_FLUSHED:
2631 case SRB_STATUS_ERROR:
2632 case SRB_STATUS_INVALID_REQUEST:
2633 case SRB_STATUS_REQUEST_SENSE_FAILED:
2634 case SRB_STATUS_NO_HBA:
2635 case SRB_STATUS_UNEXPECTED_BUS_FREE:
2636 case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
2637 case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
2638 case SRB_STATUS_DELAYED_RETRY:
2639 case SRB_STATUS_BAD_FUNCTION:
2640 case SRB_STATUS_NOT_STARTED:
2641 case SRB_STATUS_NOT_IN_USE:
2642 case SRB_STATUS_FORCE_ABORT:
2643 case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
2644 default:
2645 #ifdef AAC_DETAILED_STATUS_INFO
2646 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
2647 le32_to_cpu(srbreply->srb_status) & 0x3F,
2648 aac_get_status_string(
2649 le32_to_cpu(srbreply->srb_status) & 0x3F),
2650 scsicmd->cmnd[0],
2651 le32_to_cpu(srbreply->scsi_status));
2652 #endif
2653 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2654 break;
2655 }
2656 if (le32_to_cpu(srbreply->scsi_status) == SAM_STAT_CHECK_CONDITION) {
2657 int len;
2658 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
2659 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2660 SCSI_SENSE_BUFFERSIZE);
2661 #ifdef AAC_DETAILED_STATUS_INFO
2662 printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
2663 le32_to_cpu(srbreply->status), len);
2664 #endif
2665 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2666 }
2667 /*
2668 * OR in the scsi status (already shifted up a bit)
2669 */
2670 scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
2671
2672 aac_fib_complete(fibptr);
2673 aac_fib_free(fibptr);
2674 scsicmd->scsi_done(scsicmd);
2675 }
2676
2677 /**
2678 *
2679 * aac_send_scb_fib
2680 * @scsicmd: the scsi command block
2681 *
2682 * This routine will form a FIB and fill in the aac_srb from the
2683 * scsicmd passed in.
2684 */
2685
2686 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
2687 {
2688 struct fib* cmd_fibcontext;
2689 struct aac_dev* dev;
2690 int status;
2691
2692 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2693 if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
2694 scsicmd->device->lun > 7) {
2695 scsicmd->result = DID_NO_CONNECT << 16;
2696 scsicmd->scsi_done(scsicmd);
2697 return 0;
2698 }
2699
2700 /*
2701 * Allocate and initialize a Fib then setup a BlockWrite command
2702 */
2703 if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
2704 return -1;
2705 }
2706 status = aac_adapter_scsi(cmd_fibcontext, scsicmd);
2707
2708 /*
2709 * Check that the command queued to the controller
2710 */
2711 if (status == -EINPROGRESS) {
2712 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
2713 return 0;
2714 }
2715
2716 printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
2717 aac_fib_complete(cmd_fibcontext);
2718 aac_fib_free(cmd_fibcontext);
2719
2720 return -1;
2721 }
2722
2723 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
2724 {
2725 struct aac_dev *dev;
2726 unsigned long byte_count = 0;
2727 int nseg;
2728
2729 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2730 // Get rid of old data
2731 psg->count = 0;
2732 psg->sg[0].addr = 0;
2733 psg->sg[0].count = 0;
2734
2735 nseg = scsi_dma_map(scsicmd);
2736 BUG_ON(nseg < 0);
2737 if (nseg) {
2738 struct scatterlist *sg;
2739 int i;
2740
2741 psg->count = cpu_to_le32(nseg);
2742
2743 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2744 psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2745 psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2746 byte_count += sg_dma_len(sg);
2747 }
2748 /* hba wants the size to be exact */
2749 if (byte_count > scsi_bufflen(scsicmd)) {
2750 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2751 (byte_count - scsi_bufflen(scsicmd));
2752 psg->sg[i-1].count = cpu_to_le32(temp);
2753 byte_count = scsi_bufflen(scsicmd);
2754 }
2755 /* Check for command underflow */
2756 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2757 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2758 byte_count, scsicmd->underflow);
2759 }
2760 }
2761 return byte_count;
2762 }
2763
2764
2765 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2766 {
2767 struct aac_dev *dev;
2768 unsigned long byte_count = 0;
2769 u64 addr;
2770 int nseg;
2771
2772 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2773 // Get rid of old data
2774 psg->count = 0;
2775 psg->sg[0].addr[0] = 0;
2776 psg->sg[0].addr[1] = 0;
2777 psg->sg[0].count = 0;
2778
2779 nseg = scsi_dma_map(scsicmd);
2780 BUG_ON(nseg < 0);
2781 if (nseg) {
2782 struct scatterlist *sg;
2783 int i;
2784
2785 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2786 int count = sg_dma_len(sg);
2787 addr = sg_dma_address(sg);
2788 psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2789 psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2790 psg->sg[i].count = cpu_to_le32(count);
2791 byte_count += count;
2792 }
2793 psg->count = cpu_to_le32(nseg);
2794 /* hba wants the size to be exact */
2795 if (byte_count > scsi_bufflen(scsicmd)) {
2796 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2797 (byte_count - scsi_bufflen(scsicmd));
2798 psg->sg[i-1].count = cpu_to_le32(temp);
2799 byte_count = scsi_bufflen(scsicmd);
2800 }
2801 /* Check for command underflow */
2802 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2803 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2804 byte_count, scsicmd->underflow);
2805 }
2806 }
2807 return byte_count;
2808 }
2809
2810 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2811 {
2812 unsigned long byte_count = 0;
2813 int nseg;
2814
2815 // Get rid of old data
2816 psg->count = 0;
2817 psg->sg[0].next = 0;
2818 psg->sg[0].prev = 0;
2819 psg->sg[0].addr[0] = 0;
2820 psg->sg[0].addr[1] = 0;
2821 psg->sg[0].count = 0;
2822 psg->sg[0].flags = 0;
2823
2824 nseg = scsi_dma_map(scsicmd);
2825 BUG_ON(nseg < 0);
2826 if (nseg) {
2827 struct scatterlist *sg;
2828 int i;
2829
2830 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2831 int count = sg_dma_len(sg);
2832 u64 addr = sg_dma_address(sg);
2833 psg->sg[i].next = 0;
2834 psg->sg[i].prev = 0;
2835 psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2836 psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2837 psg->sg[i].count = cpu_to_le32(count);
2838 psg->sg[i].flags = 0;
2839 byte_count += count;
2840 }
2841 psg->count = cpu_to_le32(nseg);
2842 /* hba wants the size to be exact */
2843 if (byte_count > scsi_bufflen(scsicmd)) {
2844 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2845 (byte_count - scsi_bufflen(scsicmd));
2846 psg->sg[i-1].count = cpu_to_le32(temp);
2847 byte_count = scsi_bufflen(scsicmd);
2848 }
2849 /* Check for command underflow */
2850 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2851 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2852 byte_count, scsicmd->underflow);
2853 }
2854 }
2855 return byte_count;
2856 }
2857
2858 #ifdef AAC_DETAILED_STATUS_INFO
2859
2860 struct aac_srb_status_info {
2861 u32 status;
2862 char *str;
2863 };
2864
2865
2866 static struct aac_srb_status_info srb_status_info[] = {
2867 { SRB_STATUS_PENDING, "Pending Status"},
2868 { SRB_STATUS_SUCCESS, "Success"},
2869 { SRB_STATUS_ABORTED, "Aborted Command"},
2870 { SRB_STATUS_ABORT_FAILED, "Abort Failed"},
2871 { SRB_STATUS_ERROR, "Error Event"},
2872 { SRB_STATUS_BUSY, "Device Busy"},
2873 { SRB_STATUS_INVALID_REQUEST, "Invalid Request"},
2874 { SRB_STATUS_INVALID_PATH_ID, "Invalid Path ID"},
2875 { SRB_STATUS_NO_DEVICE, "No Device"},
2876 { SRB_STATUS_TIMEOUT, "Timeout"},
2877 { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2878 { SRB_STATUS_COMMAND_TIMEOUT, "Command Timeout"},
2879 { SRB_STATUS_MESSAGE_REJECTED, "Message Rejected"},
2880 { SRB_STATUS_BUS_RESET, "Bus Reset"},
2881 { SRB_STATUS_PARITY_ERROR, "Parity Error"},
2882 { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2883 { SRB_STATUS_NO_HBA, "No HBA"},
2884 { SRB_STATUS_DATA_OVERRUN, "Data Overrun/Data Underrun"},
2885 { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2886 { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2887 { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2888 { SRB_STATUS_REQUEST_FLUSHED, "Request Flushed"},
2889 { SRB_STATUS_DELAYED_RETRY, "Delayed Retry"},
2890 { SRB_STATUS_INVALID_LUN, "Invalid LUN"},
2891 { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2892 { SRB_STATUS_BAD_FUNCTION, "Bad Function"},
2893 { SRB_STATUS_ERROR_RECOVERY, "Error Recovery"},
2894 { SRB_STATUS_NOT_STARTED, "Not Started"},
2895 { SRB_STATUS_NOT_IN_USE, "Not In Use"},
2896 { SRB_STATUS_FORCE_ABORT, "Force Abort"},
2897 { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2898 { 0xff, "Unknown Error"}
2899 };
2900
2901 char *aac_get_status_string(u32 status)
2902 {
2903 int i;
2904
2905 for (i = 0; i < ARRAY_SIZE(srb_status_info); i++)
2906 if (srb_status_info[i].status == status)
2907 return srb_status_info[i].str;
2908
2909 return "Bad Status Code";
2910 }
2911
2912 #endif
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree