Merge branch 'master'
[linux-2.6.git] / drivers / scsi / aacraid / aachba.c
1 /*
2  *      Adaptec AAC series RAID controller driver
3  *      (c) Copyright 2001 Red Hat Inc. <alan@redhat.com>
4  *
5  * based on the old aacraid driver that is..
6  * Adaptec aacraid device driver for Linux.
7  *
8  * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com)
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2, or (at your option)
13  * any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; see the file COPYING.  If not, write to
22  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
23  *
24  */
25
26 #include <linux/kernel.h>
27 #include <linux/init.h>
28 #include <linux/types.h>
29 #include <linux/sched.h>
30 #include <linux/pci.h>
31 #include <linux/spinlock.h>
32 #include <linux/slab.h>
33 #include <linux/completion.h>
34 #include <linux/blkdev.h>
35 #include <asm/semaphore.h>
36 #include <asm/uaccess.h>
37
38 #include <scsi/scsi.h>
39 #include <scsi/scsi_cmnd.h>
40 #include <scsi/scsi_device.h>
41 #include <scsi/scsi_host.h>
42
43 #include "aacraid.h"
44
45 /* values for inqd_pdt: Peripheral device type in plain English */
46 #define INQD_PDT_DA     0x00    /* Direct-access (DISK) device */
47 #define INQD_PDT_PROC   0x03    /* Processor device */
48 #define INQD_PDT_CHNGR  0x08    /* Changer (jukebox, scsi2) */
49 #define INQD_PDT_COMM   0x09    /* Communication device (scsi2) */
50 #define INQD_PDT_NOLUN2 0x1f    /* Unknown Device (scsi2) */
51 #define INQD_PDT_NOLUN  0x7f    /* Logical Unit Not Present */
52
53 #define INQD_PDT_DMASK  0x1F    /* Peripheral Device Type Mask */
54 #define INQD_PDT_QMASK  0xE0    /* Peripheral Device Qualifer Mask */
55
56 /*
57  *      Sense codes
58  */
59  
60 #define SENCODE_NO_SENSE                        0x00
61 #define SENCODE_END_OF_DATA                     0x00
62 #define SENCODE_BECOMING_READY                  0x04
63 #define SENCODE_INIT_CMD_REQUIRED               0x04
64 #define SENCODE_PARAM_LIST_LENGTH_ERROR         0x1A
65 #define SENCODE_INVALID_COMMAND                 0x20
66 #define SENCODE_LBA_OUT_OF_RANGE                0x21
67 #define SENCODE_INVALID_CDB_FIELD               0x24
68 #define SENCODE_LUN_NOT_SUPPORTED               0x25
69 #define SENCODE_INVALID_PARAM_FIELD             0x26
70 #define SENCODE_PARAM_NOT_SUPPORTED             0x26
71 #define SENCODE_PARAM_VALUE_INVALID             0x26
72 #define SENCODE_RESET_OCCURRED                  0x29
73 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET     0x3E
74 #define SENCODE_INQUIRY_DATA_CHANGED            0x3F
75 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED     0x39
76 #define SENCODE_DIAGNOSTIC_FAILURE              0x40
77 #define SENCODE_INTERNAL_TARGET_FAILURE         0x44
78 #define SENCODE_INVALID_MESSAGE_ERROR           0x49
79 #define SENCODE_LUN_FAILED_SELF_CONFIG          0x4c
80 #define SENCODE_OVERLAPPED_COMMAND              0x4E
81
82 /*
83  *      Additional sense codes
84  */
85  
86 #define ASENCODE_NO_SENSE                       0x00
87 #define ASENCODE_END_OF_DATA                    0x05
88 #define ASENCODE_BECOMING_READY                 0x01
89 #define ASENCODE_INIT_CMD_REQUIRED              0x02
90 #define ASENCODE_PARAM_LIST_LENGTH_ERROR        0x00
91 #define ASENCODE_INVALID_COMMAND                0x00
92 #define ASENCODE_LBA_OUT_OF_RANGE               0x00
93 #define ASENCODE_INVALID_CDB_FIELD              0x00
94 #define ASENCODE_LUN_NOT_SUPPORTED              0x00
95 #define ASENCODE_INVALID_PARAM_FIELD            0x00
96 #define ASENCODE_PARAM_NOT_SUPPORTED            0x01
97 #define ASENCODE_PARAM_VALUE_INVALID            0x02
98 #define ASENCODE_RESET_OCCURRED                 0x00
99 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET    0x00
100 #define ASENCODE_INQUIRY_DATA_CHANGED           0x03
101 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED    0x00
102 #define ASENCODE_DIAGNOSTIC_FAILURE             0x80
103 #define ASENCODE_INTERNAL_TARGET_FAILURE        0x00
104 #define ASENCODE_INVALID_MESSAGE_ERROR          0x00
105 #define ASENCODE_LUN_FAILED_SELF_CONFIG         0x00
106 #define ASENCODE_OVERLAPPED_COMMAND             0x00
107
108 #define BYTE0(x) (unsigned char)(x)
109 #define BYTE1(x) (unsigned char)((x) >> 8)
110 #define BYTE2(x) (unsigned char)((x) >> 16)
111 #define BYTE3(x) (unsigned char)((x) >> 24)
112
113 /*------------------------------------------------------------------------------
114  *              S T R U C T S / T Y P E D E F S
115  *----------------------------------------------------------------------------*/
116 /* SCSI inquiry data */
117 struct inquiry_data {
118         u8 inqd_pdt;    /* Peripheral qualifier | Peripheral Device Type  */
119         u8 inqd_dtq;    /* RMB | Device Type Qualifier  */
120         u8 inqd_ver;    /* ISO version | ECMA version | ANSI-approved version */
121         u8 inqd_rdf;    /* AENC | TrmIOP | Response data format */
122         u8 inqd_len;    /* Additional length (n-4) */
123         u8 inqd_pad1[2];/* Reserved - must be zero */
124         u8 inqd_pad2;   /* RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
125         u8 inqd_vid[8]; /* Vendor ID */
126         u8 inqd_pid[16];/* Product ID */
127         u8 inqd_prl[4]; /* Product Revision Level */
128 };
129
130 /*
131  *              M O D U L E   G L O B A L S
132  */
133  
134 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
135 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
136 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
137 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
138 #ifdef AAC_DETAILED_STATUS_INFO
139 static char *aac_get_status_string(u32 status);
140 #endif
141
142 /*
143  *      Non dasd selection is handled entirely in aachba now
144  */     
145  
146 static int nondasd = -1;
147 static int dacmode = -1;
148
149 static int commit = -1;
150
151 module_param(nondasd, int, 0);
152 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
153 module_param(dacmode, int, 0);
154 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
155 module_param(commit, int, 0);
156 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the adapter for foreign arrays.\nThis is typically needed in systems that do not have a BIOS. 0=off, 1=on");
157
158 int numacb = -1;
159 module_param(numacb, int, S_IRUGO|S_IWUSR);
160 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control blocks (FIB) allocated. Valid\nvalues are 512 and down. Default is to use suggestion from Firmware.");
161
162 int acbsize = -1;
163 module_param(acbsize, int, S_IRUGO|S_IWUSR);
164 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB) size. Valid values are 512,\n2048, 4096 and 8192. Default is to use suggestion from Firmware.");
165 /**
166  *      aac_get_config_status   -       check the adapter configuration
167  *      @common: adapter to query
168  *
169  *      Query config status, and commit the configuration if needed.
170  */
171 int aac_get_config_status(struct aac_dev *dev)
172 {
173         int status = 0;
174         struct fib * fibptr;
175
176         if (!(fibptr = fib_alloc(dev)))
177                 return -ENOMEM;
178
179         fib_init(fibptr);
180         {
181                 struct aac_get_config_status *dinfo;
182                 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
183
184                 dinfo->command = cpu_to_le32(VM_ContainerConfig);
185                 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
186                 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
187         }
188
189         status = fib_send(ContainerCommand,
190                             fibptr,
191                             sizeof (struct aac_get_config_status),
192                             FsaNormal,
193                             1, 1,
194                             NULL, NULL);
195         if (status < 0 ) {
196                 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
197         } else {
198                 struct aac_get_config_status_resp *reply
199                   = (struct aac_get_config_status_resp *) fib_data(fibptr);
200                 dprintk((KERN_WARNING
201                   "aac_get_config_status: response=%d status=%d action=%d\n",
202                   le32_to_cpu(reply->response),
203                   le32_to_cpu(reply->status),
204                   le32_to_cpu(reply->data.action)));
205                 if ((le32_to_cpu(reply->response) != ST_OK) ||
206                      (le32_to_cpu(reply->status) != CT_OK) ||
207                      (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
208                         printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
209                         status = -EINVAL;
210                 }
211         }
212         fib_complete(fibptr);
213         /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
214         if (status >= 0) {
215                 if (commit == 1) {
216                         struct aac_commit_config * dinfo;
217                         fib_init(fibptr);
218                         dinfo = (struct aac_commit_config *) fib_data(fibptr);
219         
220                         dinfo->command = cpu_to_le32(VM_ContainerConfig);
221                         dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
222         
223                         status = fib_send(ContainerCommand,
224                                     fibptr,
225                                     sizeof (struct aac_commit_config),
226                                     FsaNormal,
227                                     1, 1,
228                                     NULL, NULL);
229                         fib_complete(fibptr);
230                 } else if (commit == 0) {
231                         printk(KERN_WARNING
232                           "aac_get_config_status: Foreign device configurations are being ignored\n");
233                 }
234         }
235         fib_free(fibptr);
236         return status;
237 }
238
239 /**
240  *      aac_get_containers      -       list containers
241  *      @common: adapter to probe
242  *
243  *      Make a list of all containers on this controller
244  */
245 int aac_get_containers(struct aac_dev *dev)
246 {
247         struct fsa_dev_info *fsa_dev_ptr;
248         u32 index; 
249         int status = 0;
250         struct fib * fibptr;
251         unsigned instance;
252         struct aac_get_container_count *dinfo;
253         struct aac_get_container_count_resp *dresp;
254         int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
255
256         instance = dev->scsi_host_ptr->unique_id;
257
258         if (!(fibptr = fib_alloc(dev)))
259                 return -ENOMEM;
260
261         fib_init(fibptr);
262         dinfo = (struct aac_get_container_count *) fib_data(fibptr);
263         dinfo->command = cpu_to_le32(VM_ContainerConfig);
264         dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
265
266         status = fib_send(ContainerCommand,
267                     fibptr,
268                     sizeof (struct aac_get_container_count),
269                     FsaNormal,
270                     1, 1,
271                     NULL, NULL);
272         if (status >= 0) {
273                 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
274                 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
275                 fib_complete(fibptr);
276         }
277
278         if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
279                 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
280         fsa_dev_ptr = (struct fsa_dev_info *) kmalloc(
281           sizeof(*fsa_dev_ptr) * maximum_num_containers, GFP_KERNEL);
282         if (!fsa_dev_ptr) {
283                 fib_free(fibptr);
284                 return -ENOMEM;
285         }
286         memset(fsa_dev_ptr, 0, sizeof(*fsa_dev_ptr) * maximum_num_containers);
287
288         dev->fsa_dev = fsa_dev_ptr;
289         dev->maximum_num_containers = maximum_num_containers;
290
291         for (index = 0; index < dev->maximum_num_containers; index++) {
292                 struct aac_query_mount *dinfo;
293                 struct aac_mount *dresp;
294
295                 fsa_dev_ptr[index].devname[0] = '\0';
296
297                 fib_init(fibptr);
298                 dinfo = (struct aac_query_mount *) fib_data(fibptr);
299
300                 dinfo->command = cpu_to_le32(VM_NameServe);
301                 dinfo->count = cpu_to_le32(index);
302                 dinfo->type = cpu_to_le32(FT_FILESYS);
303
304                 status = fib_send(ContainerCommand,
305                                     fibptr,
306                                     sizeof (struct aac_query_mount),
307                                     FsaNormal,
308                                     1, 1,
309                                     NULL, NULL);
310                 if (status < 0 ) {
311                         printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
312                         break;
313                 }
314                 dresp = (struct aac_mount *)fib_data(fibptr);
315
316                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
317                     (le32_to_cpu(dresp->mnt[0].vol) == CT_NONE)) {
318                         dinfo->command = cpu_to_le32(VM_NameServe64);
319                         dinfo->count = cpu_to_le32(index);
320                         dinfo->type = cpu_to_le32(FT_FILESYS);
321
322                         if (fib_send(ContainerCommand,
323                                     fibptr,
324                                     sizeof(struct aac_query_mount),
325                                     FsaNormal,
326                                     1, 1,
327                                     NULL, NULL) < 0)
328                                 continue;
329                 } else
330                         dresp->mnt[0].capacityhigh = 0;
331
332                 dprintk ((KERN_DEBUG
333                   "VM_NameServe cid=%d status=%d vol=%d state=%d cap=%llu\n",
334                   (int)index, (int)le32_to_cpu(dresp->status),
335                   (int)le32_to_cpu(dresp->mnt[0].vol),
336                   (int)le32_to_cpu(dresp->mnt[0].state),
337                   ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
338                     (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32)));
339                 if ((le32_to_cpu(dresp->status) == ST_OK) &&
340                     (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
341                     (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
342                         fsa_dev_ptr[index].valid = 1;
343                         fsa_dev_ptr[index].type = le32_to_cpu(dresp->mnt[0].vol);
344                         fsa_dev_ptr[index].size
345                           = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
346                             (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
347                         if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
348                                     fsa_dev_ptr[index].ro = 1;
349                 }
350                 fib_complete(fibptr);
351                 /*
352                  *      If there are no more containers, then stop asking.
353                  */
354                 if ((index + 1) >= le32_to_cpu(dresp->count)){
355                         break;
356                 }
357         }
358         fib_free(fibptr);
359         return status;
360 }
361
362 static void aac_io_done(struct scsi_cmnd * scsicmd)
363 {
364         unsigned long cpu_flags;
365         struct Scsi_Host *host = scsicmd->device->host;
366         spin_lock_irqsave(host->host_lock, cpu_flags);
367         scsicmd->scsi_done(scsicmd);
368         spin_unlock_irqrestore(host->host_lock, cpu_flags);
369 }
370
371 static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigned int offset, unsigned int len)
372 {
373         void *buf;
374         unsigned int transfer_len;
375         struct scatterlist *sg = scsicmd->request_buffer;
376
377         if (scsicmd->use_sg) {
378                 buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
379                 transfer_len = min(sg->length, len + offset);
380         } else {
381                 buf = scsicmd->request_buffer;
382                 transfer_len = min(scsicmd->request_bufflen, len + offset);
383         }
384
385         memcpy(buf + offset, data, transfer_len - offset);
386
387         if (scsicmd->use_sg) 
388                 kunmap_atomic(buf - sg->offset, KM_IRQ0);
389
390 }
391
392 static void get_container_name_callback(void *context, struct fib * fibptr)
393 {
394         struct aac_get_name_resp * get_name_reply;
395         struct scsi_cmnd * scsicmd;
396
397         scsicmd = (struct scsi_cmnd *) context;
398
399         dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
400         if (fibptr == NULL)
401                 BUG();
402
403         get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
404         /* Failure is irrelevant, using default value instead */
405         if ((le32_to_cpu(get_name_reply->status) == CT_OK)
406          && (get_name_reply->data[0] != '\0')) {
407                 char *sp = get_name_reply->data;
408                 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
409                 while (*sp == ' ')
410                         ++sp;
411                 if (*sp) {
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                         aac_internal_transfer(scsicmd, d, 
419                           offsetof(struct inquiry_data, inqd_pid), sizeof(d));
420                 }
421         }
422
423         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
424
425         fib_complete(fibptr);
426         fib_free(fibptr);
427         aac_io_done(scsicmd);
428 }
429
430 /**
431  *      aac_get_container_name  -       get container name, none blocking.
432  */
433 static int aac_get_container_name(struct scsi_cmnd * scsicmd, int cid)
434 {
435         int status;
436         struct aac_get_name *dinfo;
437         struct fib * cmd_fibcontext;
438         struct aac_dev * dev;
439
440         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
441
442         if (!(cmd_fibcontext = fib_alloc(dev)))
443                 return -ENOMEM;
444
445         fib_init(cmd_fibcontext);
446         dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
447
448         dinfo->command = cpu_to_le32(VM_ContainerConfig);
449         dinfo->type = cpu_to_le32(CT_READ_NAME);
450         dinfo->cid = cpu_to_le32(cid);
451         dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
452
453         status = fib_send(ContainerCommand, 
454                   cmd_fibcontext, 
455                   sizeof (struct aac_get_name),
456                   FsaNormal, 
457                   0, 1, 
458                   (fib_callback) get_container_name_callback, 
459                   (void *) scsicmd);
460         
461         /*
462          *      Check that the command queued to the controller
463          */
464         if (status == -EINPROGRESS) 
465                 return 0;
466                 
467         printk(KERN_WARNING "aac_get_container_name: fib_send failed with status: %d.\n", status);
468         fib_complete(cmd_fibcontext);
469         fib_free(cmd_fibcontext);
470         return -1;
471 }
472
473 /**
474  *      probe_container         -       query a logical volume
475  *      @dev: device to query
476  *      @cid: container identifier
477  *
478  *      Queries the controller about the given volume. The volume information
479  *      is updated in the struct fsa_dev_info structure rather than returned.
480  */
481  
482 int probe_container(struct aac_dev *dev, int cid)
483 {
484         struct fsa_dev_info *fsa_dev_ptr;
485         int status;
486         struct aac_query_mount *dinfo;
487         struct aac_mount *dresp;
488         struct fib * fibptr;
489         unsigned instance;
490
491         fsa_dev_ptr = dev->fsa_dev;
492         instance = dev->scsi_host_ptr->unique_id;
493
494         if (!(fibptr = fib_alloc(dev)))
495                 return -ENOMEM;
496
497         fib_init(fibptr);
498
499         dinfo = (struct aac_query_mount *)fib_data(fibptr);
500
501         dinfo->command = cpu_to_le32(VM_NameServe);
502         dinfo->count = cpu_to_le32(cid);
503         dinfo->type = cpu_to_le32(FT_FILESYS);
504
505         status = fib_send(ContainerCommand,
506                             fibptr,
507                             sizeof(struct aac_query_mount),
508                             FsaNormal,
509                             1, 1,
510                             NULL, NULL);
511         if (status < 0) {
512                 printk(KERN_WARNING "aacraid: probe_container query failed.\n");
513                 goto error;
514         }
515
516         dresp = (struct aac_mount *) fib_data(fibptr);
517
518         if ((le32_to_cpu(dresp->status) == ST_OK) &&
519             (le32_to_cpu(dresp->mnt[0].vol) == CT_NONE)) {
520                 dinfo->command = cpu_to_le32(VM_NameServe64);
521                 dinfo->count = cpu_to_le32(cid);
522                 dinfo->type = cpu_to_le32(FT_FILESYS);
523
524                 if (fib_send(ContainerCommand,
525                             fibptr,
526                             sizeof(struct aac_query_mount),
527                             FsaNormal,
528                             1, 1,
529                             NULL, NULL) < 0)
530                         goto error;
531         } else
532                 dresp->mnt[0].capacityhigh = 0;
533
534         if ((le32_to_cpu(dresp->status) == ST_OK) &&
535             (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
536             (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
537                 fsa_dev_ptr[cid].valid = 1;
538                 fsa_dev_ptr[cid].type = le32_to_cpu(dresp->mnt[0].vol);
539                 fsa_dev_ptr[cid].size
540                   = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
541                     (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
542                 if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
543                         fsa_dev_ptr[cid].ro = 1;
544         }
545
546 error:
547         fib_complete(fibptr);
548         fib_free(fibptr);
549
550         return status;
551 }
552
553 /* Local Structure to set SCSI inquiry data strings */
554 struct scsi_inq {
555         char vid[8];         /* Vendor ID */
556         char pid[16];        /* Product ID */
557         char prl[4];         /* Product Revision Level */
558 };
559
560 /**
561  *      InqStrCopy      -       string merge
562  *      @a:     string to copy from
563  *      @b:     string to copy to
564  *
565  *      Copy a String from one location to another
566  *      without copying \0
567  */
568
569 static void inqstrcpy(char *a, char *b)
570 {
571
572         while(*a != (char)0) 
573                 *b++ = *a++;
574 }
575
576 static char *container_types[] = {
577         "None",
578         "Volume",
579         "Mirror",
580         "Stripe",
581         "RAID5",
582         "SSRW",
583         "SSRO",
584         "Morph",
585         "Legacy",
586         "RAID4",
587         "RAID10",             
588         "RAID00",             
589         "V-MIRRORS",          
590         "PSEUDO R4",          
591         "RAID50",
592         "RAID5D",
593         "RAID5D0",
594         "RAID1E",
595         "RAID6",
596         "RAID60",
597         "Unknown"
598 };
599
600
601
602 /* Function: setinqstr
603  *
604  * Arguments: [1] pointer to void [1] int
605  *
606  * Purpose: Sets SCSI inquiry data strings for vendor, product
607  * and revision level. Allows strings to be set in platform dependant
608  * files instead of in OS dependant driver source.
609  */
610
611 static void setinqstr(int devtype, void *data, int tindex)
612 {
613         struct scsi_inq *str;
614         struct aac_driver_ident *mp;
615
616         mp = aac_get_driver_ident(devtype);
617    
618         str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
619
620         inqstrcpy (mp->vname, str->vid); 
621         inqstrcpy (mp->model, str->pid); /* last six chars reserved for vol type */
622
623         if (tindex < (sizeof(container_types)/sizeof(char *))){
624                 char *findit = str->pid;
625
626                 for ( ; *findit != ' '; findit++); /* walk till we find a space */
627                 /* RAID is superfluous in the context of a RAID device */
628                 if (memcmp(findit-4, "RAID", 4) == 0)
629                         *(findit -= 4) = ' ';
630                 inqstrcpy (container_types[tindex], findit + 1);
631         }
632         inqstrcpy ("V1.0", str->prl);
633 }
634
635 static void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
636                       u8 a_sense_code, u8 incorrect_length,
637                       u8 bit_pointer, u16 field_pointer,
638                       u32 residue)
639 {
640         sense_buf[0] = 0xF0;    /* Sense data valid, err code 70h (current error) */
641         sense_buf[1] = 0;       /* Segment number, always zero */
642
643         if (incorrect_length) {
644                 sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
645                 sense_buf[3] = BYTE3(residue);
646                 sense_buf[4] = BYTE2(residue);
647                 sense_buf[5] = BYTE1(residue);
648                 sense_buf[6] = BYTE0(residue);
649         } else
650                 sense_buf[2] = sense_key;       /* Sense key */
651
652         if (sense_key == ILLEGAL_REQUEST)
653                 sense_buf[7] = 10;      /* Additional sense length */
654         else
655                 sense_buf[7] = 6;       /* Additional sense length */
656
657         sense_buf[12] = sense_code;     /* Additional sense code */
658         sense_buf[13] = a_sense_code;   /* Additional sense code qualifier */
659         if (sense_key == ILLEGAL_REQUEST) {
660                 sense_buf[15] = 0;
661
662                 if (sense_code == SENCODE_INVALID_PARAM_FIELD)
663                         sense_buf[15] = 0x80;/* Std sense key specific field */
664                 /* Illegal parameter is in the parameter block */
665
666                 if (sense_code == SENCODE_INVALID_CDB_FIELD)
667                         sense_buf[15] = 0xc0;/* Std sense key specific field */
668                 /* Illegal parameter is in the CDB block */
669                 sense_buf[15] |= bit_pointer;
670                 sense_buf[16] = field_pointer >> 8;     /* MSB */
671                 sense_buf[17] = field_pointer;          /* LSB */
672         }
673 }
674
675 int aac_get_adapter_info(struct aac_dev* dev)
676 {
677         struct fib* fibptr;
678         int rcode;
679         u32 tmp;
680         struct aac_adapter_info *info;
681         struct aac_bus_info *command;
682         struct aac_bus_info_response *bus_info;
683
684         if (!(fibptr = fib_alloc(dev)))
685                 return -ENOMEM;
686
687         fib_init(fibptr);
688         info = (struct aac_adapter_info *) fib_data(fibptr);
689         memset(info,0,sizeof(*info));
690
691         rcode = fib_send(RequestAdapterInfo,
692                          fibptr, 
693                          sizeof(*info),
694                          FsaNormal, 
695                          -1, 1, /* First `interrupt' command uses special wait */
696                          NULL, 
697                          NULL);
698
699         if (rcode < 0) {
700                 fib_complete(fibptr);
701                 fib_free(fibptr);
702                 return rcode;
703         }
704         memcpy(&dev->adapter_info, info, sizeof(*info));
705
706         if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
707                 struct aac_supplement_adapter_info * info;
708
709                 fib_init(fibptr);
710
711                 info = (struct aac_supplement_adapter_info *) fib_data(fibptr);
712
713                 memset(info,0,sizeof(*info));
714
715                 rcode = fib_send(RequestSupplementAdapterInfo,
716                                  fibptr,
717                                  sizeof(*info),
718                                  FsaNormal,
719                                  1, 1,
720                                  NULL,
721                                  NULL);
722
723                 if (rcode >= 0)
724                         memcpy(&dev->supplement_adapter_info, info, sizeof(*info));
725         }
726
727
728         /* 
729          * GetBusInfo 
730          */
731
732         fib_init(fibptr);
733
734         bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
735
736         memset(bus_info, 0, sizeof(*bus_info));
737
738         command = (struct aac_bus_info *)bus_info;
739
740         command->Command = cpu_to_le32(VM_Ioctl);
741         command->ObjType = cpu_to_le32(FT_DRIVE);
742         command->MethodId = cpu_to_le32(1);
743         command->CtlCmd = cpu_to_le32(GetBusInfo);
744
745         rcode = fib_send(ContainerCommand,
746                          fibptr,
747                          sizeof (*bus_info),
748                          FsaNormal,
749                          1, 1,
750                          NULL, NULL);
751
752         if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
753                 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
754                 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
755         }
756
757         tmp = le32_to_cpu(dev->adapter_info.kernelrev);
758         printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n", 
759                         dev->name, 
760                         dev->id,
761                         tmp>>24,
762                         (tmp>>16)&0xff,
763                         tmp&0xff,
764                         le32_to_cpu(dev->adapter_info.kernelbuild),
765                         (int)sizeof(dev->supplement_adapter_info.BuildDate),
766                         dev->supplement_adapter_info.BuildDate);
767         tmp = le32_to_cpu(dev->adapter_info.monitorrev);
768         printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n", 
769                         dev->name, dev->id,
770                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
771                         le32_to_cpu(dev->adapter_info.monitorbuild));
772         tmp = le32_to_cpu(dev->adapter_info.biosrev);
773         printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n", 
774                         dev->name, dev->id,
775                         tmp>>24,(tmp>>16)&0xff,tmp&0xff,
776                         le32_to_cpu(dev->adapter_info.biosbuild));
777         if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
778                 printk(KERN_INFO "%s%d: serial %x\n",
779                         dev->name, dev->id,
780                         le32_to_cpu(dev->adapter_info.serial[0]));
781
782         dev->nondasd_support = 0;
783         dev->raid_scsi_mode = 0;
784         if(dev->adapter_info.options & AAC_OPT_NONDASD){
785                 dev->nondasd_support = 1;
786         }
787
788         /*
789          * If the firmware supports ROMB RAID/SCSI mode and we are currently
790          * in RAID/SCSI mode, set the flag. For now if in this mode we will
791          * force nondasd support on. If we decide to allow the non-dasd flag
792          * additional changes changes will have to be made to support
793          * RAID/SCSI.  the function aac_scsi_cmd in this module will have to be
794          * changed to support the new dev->raid_scsi_mode flag instead of
795          * leaching off of the dev->nondasd_support flag. Also in linit.c the
796          * function aac_detect will have to be modified where it sets up the
797          * max number of channels based on the aac->nondasd_support flag only.
798          */
799         if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
800             (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
801                 dev->nondasd_support = 1;
802                 dev->raid_scsi_mode = 1;
803         }
804         if (dev->raid_scsi_mode != 0)
805                 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
806                                 dev->name, dev->id);
807                 
808         if(nondasd != -1) {  
809                 dev->nondasd_support = (nondasd!=0);
810         }
811         if(dev->nondasd_support != 0){
812                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
813         }
814
815         dev->dac_support = 0;
816         if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
817                 printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id);
818                 dev->dac_support = 1;
819         }
820
821         if(dacmode != -1) {
822                 dev->dac_support = (dacmode!=0);
823         }
824         if(dev->dac_support != 0) {
825                 if (!pci_set_dma_mask(dev->pdev, 0xFFFFFFFFFFFFFFFFULL) &&
826                         !pci_set_consistent_dma_mask(dev->pdev, 0xFFFFFFFFFFFFFFFFULL)) {
827                         printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
828                                 dev->name, dev->id);
829                 } else if (!pci_set_dma_mask(dev->pdev, 0xFFFFFFFFULL) &&
830                         !pci_set_consistent_dma_mask(dev->pdev, 0xFFFFFFFFULL)) {
831                         printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
832                                 dev->name, dev->id);
833                         dev->dac_support = 0;
834                 } else {
835                         printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
836                                 dev->name, dev->id);
837                         rcode = -ENOMEM;
838                 }
839         }
840         /* 
841          * 57 scatter gather elements 
842          */
843         if (!(dev->raw_io_interface)) {
844                 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
845                         sizeof(struct aac_fibhdr) -
846                         sizeof(struct aac_write) + sizeof(struct sgentry)) /
847                                 sizeof(struct sgentry);
848                 if (dev->dac_support) {
849                         /* 
850                          * 38 scatter gather elements 
851                          */
852                         dev->scsi_host_ptr->sg_tablesize =
853                                 (dev->max_fib_size -
854                                 sizeof(struct aac_fibhdr) -
855                                 sizeof(struct aac_write64) +
856                                 sizeof(struct sgentry64)) /
857                                         sizeof(struct sgentry64);
858                 }
859                 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
860                 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
861                         /*
862                          * Worst case size that could cause sg overflow when
863                          * we break up SG elements that are larger than 64KB.
864                          * Would be nice if we could tell the SCSI layer what
865                          * the maximum SG element size can be. Worst case is
866                          * (sg_tablesize-1) 4KB elements with one 64KB
867                          * element.
868                          *      32bit -> 468 or 238KB   64bit -> 424 or 212KB
869                          */
870                         dev->scsi_host_ptr->max_sectors =
871                           (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
872                 }
873         }
874
875         fib_complete(fibptr);
876         fib_free(fibptr);
877
878         return rcode;
879 }
880
881
882 static void io_callback(void *context, struct fib * fibptr)
883 {
884         struct aac_dev *dev;
885         struct aac_read_reply *readreply;
886         struct scsi_cmnd *scsicmd;
887         u32 cid;
888
889         scsicmd = (struct scsi_cmnd *) context;
890
891         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
892         cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
893
894         if (nblank(dprintk(x))) {
895                 u64 lba;
896                 switch (scsicmd->cmnd[0]) {
897                 case WRITE_6:
898                 case READ_6:
899                         lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
900                             (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
901                         break;
902                 case WRITE_16:
903                 case READ_16:
904                         lba = ((u64)scsicmd->cmnd[2] << 56) |
905                               ((u64)scsicmd->cmnd[3] << 48) |
906                               ((u64)scsicmd->cmnd[4] << 40) |
907                               ((u64)scsicmd->cmnd[5] << 32) |
908                               ((u64)scsicmd->cmnd[6] << 24) |
909                               (scsicmd->cmnd[7] << 16) |
910                               (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
911                         break;
912                 case WRITE_12:
913                 case READ_12:
914                         lba = ((u64)scsicmd->cmnd[2] << 24) |
915                               (scsicmd->cmnd[3] << 16) |
916                               (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
917                         break;
918                 default:
919                         lba = ((u64)scsicmd->cmnd[2] << 24) |
920                                (scsicmd->cmnd[3] << 16) |
921                                (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
922                         break;
923                 }
924                 printk(KERN_DEBUG
925                   "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
926                   smp_processor_id(), (unsigned long long)lba, jiffies);
927         }
928
929         if (fibptr == NULL)
930                 BUG();
931                 
932         if(scsicmd->use_sg)
933                 pci_unmap_sg(dev->pdev, 
934                         (struct scatterlist *)scsicmd->buffer,
935                         scsicmd->use_sg,
936                         scsicmd->sc_data_direction);
937         else if(scsicmd->request_bufflen)
938                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle,
939                                  scsicmd->request_bufflen,
940                                  scsicmd->sc_data_direction);
941         readreply = (struct aac_read_reply *)fib_data(fibptr);
942         if (le32_to_cpu(readreply->status) == ST_OK)
943                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
944         else {
945 #ifdef AAC_DETAILED_STATUS_INFO
946                 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
947                   le32_to_cpu(readreply->status));
948 #endif
949                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
950                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
951                                     HARDWARE_ERROR,
952                                     SENCODE_INTERNAL_TARGET_FAILURE,
953                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
954                                     0, 0);
955                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
956                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
957                     ? sizeof(scsicmd->sense_buffer)
958                     : sizeof(dev->fsa_dev[cid].sense_data));
959         }
960         fib_complete(fibptr);
961         fib_free(fibptr);
962
963         aac_io_done(scsicmd);
964 }
965
966 static int aac_read(struct scsi_cmnd * scsicmd, int cid)
967 {
968         u64 lba;
969         u32 count;
970         int status;
971
972         u16 fibsize;
973         struct aac_dev *dev;
974         struct fib * cmd_fibcontext;
975
976         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
977         /*
978          *      Get block address and transfer length
979          */
980         switch (scsicmd->cmnd[0]) {
981         case READ_6:
982                 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", cid));
983
984                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | 
985                         (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
986                 count = scsicmd->cmnd[4];
987
988                 if (count == 0)
989                         count = 256;
990                 break;
991         case READ_16:
992                 dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", cid));
993
994                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
995                         ((u64)scsicmd->cmnd[3] << 48) |
996                         ((u64)scsicmd->cmnd[4] << 40) |
997                         ((u64)scsicmd->cmnd[5] << 32) |
998                         ((u64)scsicmd->cmnd[6] << 24) | 
999                         (scsicmd->cmnd[7] << 16) |
1000                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1001                 count = (scsicmd->cmnd[10] << 24) | 
1002                         (scsicmd->cmnd[11] << 16) |
1003                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1004                 break;
1005         case READ_12:
1006                 dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", cid));
1007
1008                 lba = ((u64)scsicmd->cmnd[2] << 24) | 
1009                         (scsicmd->cmnd[3] << 16) |
1010                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1011                 count = (scsicmd->cmnd[6] << 24) | 
1012                         (scsicmd->cmnd[7] << 16) |
1013                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1014                 break;
1015         default:
1016                 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", cid));
1017
1018                 lba = ((u64)scsicmd->cmnd[2] << 24) | 
1019                         (scsicmd->cmnd[3] << 16) | 
1020                         (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1021                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1022                 break;
1023         }
1024         dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
1025           smp_processor_id(), (unsigned long long)lba, jiffies));
1026         if ((!(dev->raw_io_interface) || !(dev->raw_io_64)) &&
1027                 (lba & 0xffffffff00000000LL)) {
1028                 dprintk((KERN_DEBUG "aac_read: Illegal lba\n"));
1029                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | 
1030                         SAM_STAT_CHECK_CONDITION;
1031                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1032                             HARDWARE_ERROR,
1033                             SENCODE_INTERNAL_TARGET_FAILURE,
1034                             ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1035                             0, 0);
1036                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1037                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1038                     ? sizeof(scsicmd->sense_buffer)
1039                     : sizeof(dev->fsa_dev[cid].sense_data));
1040                 scsicmd->scsi_done(scsicmd);
1041                 return 0;
1042         }
1043         /*
1044          *      Alocate and initialize a Fib
1045          */
1046         if (!(cmd_fibcontext = fib_alloc(dev))) {
1047                 return -1;
1048         }
1049
1050         fib_init(cmd_fibcontext);
1051
1052         if (dev->raw_io_interface) {
1053                 struct aac_raw_io *readcmd;
1054                 readcmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
1055                 readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1056                 readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1057                 readcmd->count = cpu_to_le32(count<<9);
1058                 readcmd->cid = cpu_to_le16(cid);
1059                 readcmd->flags = cpu_to_le16(1);
1060                 readcmd->bpTotal = 0;
1061                 readcmd->bpComplete = 0;
1062                 
1063                 aac_build_sgraw(scsicmd, &readcmd->sg);
1064                 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
1065                 if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))
1066                         BUG();
1067                 /*
1068                  *      Now send the Fib to the adapter
1069                  */
1070                 status = fib_send(ContainerRawIo,
1071                           cmd_fibcontext, 
1072                           fibsize, 
1073                           FsaNormal, 
1074                           0, 1, 
1075                           (fib_callback) io_callback, 
1076                           (void *) scsicmd);
1077         } else if (dev->dac_support == 1) {
1078                 struct aac_read64 *readcmd;
1079                 readcmd = (struct aac_read64 *) fib_data(cmd_fibcontext);
1080                 readcmd->command = cpu_to_le32(VM_CtHostRead64);
1081                 readcmd->cid = cpu_to_le16(cid);
1082                 readcmd->sector_count = cpu_to_le16(count);
1083                 readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1084                 readcmd->pad   = 0;
1085                 readcmd->flags = 0; 
1086
1087                 aac_build_sg64(scsicmd, &readcmd->sg);
1088                 fibsize = sizeof(struct aac_read64) + 
1089                         ((le32_to_cpu(readcmd->sg.count) - 1) * 
1090                          sizeof (struct sgentry64));
1091                 BUG_ON (fibsize > (dev->max_fib_size - 
1092                                         sizeof(struct aac_fibhdr)));
1093                 /*
1094                  *      Now send the Fib to the adapter
1095                  */
1096                 status = fib_send(ContainerCommand64, 
1097                           cmd_fibcontext, 
1098                           fibsize, 
1099                           FsaNormal, 
1100                           0, 1, 
1101                           (fib_callback) io_callback, 
1102                           (void *) scsicmd);
1103         } else {
1104                 struct aac_read *readcmd;
1105                 readcmd = (struct aac_read *) fib_data(cmd_fibcontext);
1106                 readcmd->command = cpu_to_le32(VM_CtBlockRead);
1107                 readcmd->cid = cpu_to_le32(cid);
1108                 readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1109                 readcmd->count = cpu_to_le32(count * 512);
1110
1111                 aac_build_sg(scsicmd, &readcmd->sg);
1112                 fibsize = sizeof(struct aac_read) + 
1113                         ((le32_to_cpu(readcmd->sg.count) - 1) * 
1114                          sizeof (struct sgentry));
1115                 BUG_ON (fibsize > (dev->max_fib_size -
1116                                         sizeof(struct aac_fibhdr)));
1117                 /*
1118                  *      Now send the Fib to the adapter
1119                  */
1120                 status = fib_send(ContainerCommand, 
1121                           cmd_fibcontext, 
1122                           fibsize, 
1123                           FsaNormal, 
1124                           0, 1, 
1125                           (fib_callback) io_callback, 
1126                           (void *) scsicmd);
1127         }
1128
1129         
1130
1131         /*
1132          *      Check that the command queued to the controller
1133          */
1134         if (status == -EINPROGRESS) 
1135                 return 0;
1136                 
1137         printk(KERN_WARNING "aac_read: fib_send failed with status: %d.\n", status);
1138         /*
1139          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1140          */
1141         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1142         aac_io_done(scsicmd);
1143         fib_complete(cmd_fibcontext);
1144         fib_free(cmd_fibcontext);
1145         return 0;
1146 }
1147
1148 static int aac_write(struct scsi_cmnd * scsicmd, int cid)
1149 {
1150         u64 lba;
1151         u32 count;
1152         int status;
1153         u16 fibsize;
1154         struct aac_dev *dev;
1155         struct fib * cmd_fibcontext;
1156
1157         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1158         /*
1159          *      Get block address and transfer length
1160          */
1161         if (scsicmd->cmnd[0] == WRITE_6)        /* 6 byte command */
1162         {
1163                 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1164                 count = scsicmd->cmnd[4];
1165                 if (count == 0)
1166                         count = 256;
1167         } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
1168                 dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", cid));
1169
1170                 lba =   ((u64)scsicmd->cmnd[2] << 56) |
1171                         ((u64)scsicmd->cmnd[3] << 48) |
1172                         ((u64)scsicmd->cmnd[4] << 40) |
1173                         ((u64)scsicmd->cmnd[5] << 32) |
1174                         ((u64)scsicmd->cmnd[6] << 24) | 
1175                         (scsicmd->cmnd[7] << 16) |
1176                         (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1177                 count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
1178                         (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1179         } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
1180                 dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", cid));
1181
1182                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
1183                     | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1184                 count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
1185                       | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1186         } else {
1187                 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", cid));
1188                 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1189                 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1190         }
1191         dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
1192           smp_processor_id(), (unsigned long long)lba, jiffies));
1193         if ((!(dev->raw_io_interface) || !(dev->raw_io_64))
1194          && (lba & 0xffffffff00000000LL)) {
1195                 dprintk((KERN_DEBUG "aac_write: Illegal lba\n"));
1196                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1197                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1198                             HARDWARE_ERROR,
1199                             SENCODE_INTERNAL_TARGET_FAILURE,
1200                             ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1201                             0, 0);
1202                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1203                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1204                     ? sizeof(scsicmd->sense_buffer)
1205                     : sizeof(dev->fsa_dev[cid].sense_data));
1206                 scsicmd->scsi_done(scsicmd);
1207                 return 0;
1208         }
1209         /*
1210          *      Allocate and initialize a Fib then setup a BlockWrite command
1211          */
1212         if (!(cmd_fibcontext = fib_alloc(dev))) {
1213                 scsicmd->result = DID_ERROR << 16;
1214                 aac_io_done(scsicmd);
1215                 return 0;
1216         }
1217         fib_init(cmd_fibcontext);
1218
1219         if (dev->raw_io_interface) {
1220                 struct aac_raw_io *writecmd;
1221                 writecmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
1222                 writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1223                 writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1224                 writecmd->count = cpu_to_le32(count<<9);
1225                 writecmd->cid = cpu_to_le16(cid);
1226                 writecmd->flags = 0; 
1227                 writecmd->bpTotal = 0;
1228                 writecmd->bpComplete = 0;
1229                 
1230                 aac_build_sgraw(scsicmd, &writecmd->sg);
1231                 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1232                 if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))
1233                         BUG();
1234                 /*
1235                  *      Now send the Fib to the adapter
1236                  */
1237                 status = fib_send(ContainerRawIo,
1238                           cmd_fibcontext, 
1239                           fibsize, 
1240                           FsaNormal, 
1241                           0, 1, 
1242                           (fib_callback) io_callback, 
1243                           (void *) scsicmd);
1244         } else if (dev->dac_support == 1) {
1245                 struct aac_write64 *writecmd;
1246                 writecmd = (struct aac_write64 *) fib_data(cmd_fibcontext);
1247                 writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1248                 writecmd->cid = cpu_to_le16(cid);
1249                 writecmd->sector_count = cpu_to_le16(count); 
1250                 writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1251                 writecmd->pad   = 0;
1252                 writecmd->flags = 0;
1253
1254                 aac_build_sg64(scsicmd, &writecmd->sg);
1255                 fibsize = sizeof(struct aac_write64) + 
1256                         ((le32_to_cpu(writecmd->sg.count) - 1) * 
1257                          sizeof (struct sgentry64));
1258                 BUG_ON (fibsize > (dev->max_fib_size -
1259                                         sizeof(struct aac_fibhdr)));
1260                 /*
1261                  *      Now send the Fib to the adapter
1262                  */
1263                 status = fib_send(ContainerCommand64, 
1264                           cmd_fibcontext, 
1265                           fibsize, 
1266                           FsaNormal, 
1267                           0, 1, 
1268                           (fib_callback) io_callback, 
1269                           (void *) scsicmd);
1270         } else {
1271                 struct aac_write *writecmd;
1272                 writecmd = (struct aac_write *) fib_data(cmd_fibcontext);
1273                 writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1274                 writecmd->cid = cpu_to_le32(cid);
1275                 writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1276                 writecmd->count = cpu_to_le32(count * 512);
1277                 writecmd->sg.count = cpu_to_le32(1);
1278                 /* ->stable is not used - it did mean which type of write */
1279
1280                 aac_build_sg(scsicmd, &writecmd->sg);
1281                 fibsize = sizeof(struct aac_write) + 
1282                         ((le32_to_cpu(writecmd->sg.count) - 1) * 
1283                          sizeof (struct sgentry));
1284                 BUG_ON (fibsize > (dev->max_fib_size -
1285                                         sizeof(struct aac_fibhdr)));
1286                 /*
1287                  *      Now send the Fib to the adapter
1288                  */
1289                 status = fib_send(ContainerCommand, 
1290                           cmd_fibcontext, 
1291                           fibsize, 
1292                           FsaNormal, 
1293                           0, 1, 
1294                           (fib_callback) io_callback, 
1295                           (void *) scsicmd);
1296         }
1297
1298         /*
1299          *      Check that the command queued to the controller
1300          */
1301         if (status == -EINPROGRESS)
1302         {
1303                 return 0;
1304         }
1305
1306         printk(KERN_WARNING "aac_write: fib_send failed with status: %d\n", status);
1307         /*
1308          *      For some reason, the Fib didn't queue, return QUEUE_FULL
1309          */
1310         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1311         aac_io_done(scsicmd);
1312
1313         fib_complete(cmd_fibcontext);
1314         fib_free(cmd_fibcontext);
1315         return 0;
1316 }
1317
1318 static void synchronize_callback(void *context, struct fib *fibptr)
1319 {
1320         struct aac_synchronize_reply *synchronizereply;
1321         struct scsi_cmnd *cmd;
1322
1323         cmd = context;
1324
1325         dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n", 
1326                                 smp_processor_id(), jiffies));
1327         BUG_ON(fibptr == NULL);
1328
1329
1330         synchronizereply = fib_data(fibptr);
1331         if (le32_to_cpu(synchronizereply->status) == CT_OK)
1332                 cmd->result = DID_OK << 16 | 
1333                         COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1334         else {
1335                 struct scsi_device *sdev = cmd->device;
1336                 struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
1337                 u32 cid = ID_LUN_TO_CONTAINER(sdev->id, sdev->lun);
1338                 printk(KERN_WARNING 
1339                      "synchronize_callback: synchronize failed, status = %d\n",
1340                      le32_to_cpu(synchronizereply->status));
1341                 cmd->result = DID_OK << 16 | 
1342                         COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1343                 set_sense((u8 *)&dev->fsa_dev[cid].sense_data,
1344                                     HARDWARE_ERROR,
1345                                     SENCODE_INTERNAL_TARGET_FAILURE,
1346                                     ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
1347                                     0, 0);
1348                 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1349                   min(sizeof(dev->fsa_dev[cid].sense_data), 
1350                           sizeof(cmd->sense_buffer)));
1351         }
1352
1353         fib_complete(fibptr);
1354         fib_free(fibptr);
1355         aac_io_done(cmd);
1356 }
1357
1358 static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
1359 {
1360         int status;
1361         struct fib *cmd_fibcontext;
1362         struct aac_synchronize *synchronizecmd;
1363         struct scsi_cmnd *cmd;
1364         struct scsi_device *sdev = scsicmd->device;
1365         int active = 0;
1366         unsigned long flags;
1367
1368         /*
1369          * Wait for all commands to complete to this specific
1370          * target (block).
1371          */
1372         spin_lock_irqsave(&sdev->list_lock, flags);
1373         list_for_each_entry(cmd, &sdev->cmd_list, list)
1374                 if (cmd != scsicmd && cmd->serial_number != 0) {
1375                         ++active;
1376                         break;
1377                 }
1378
1379         spin_unlock_irqrestore(&sdev->list_lock, flags);
1380
1381         /*
1382          *      Yield the processor (requeue for later)
1383          */
1384         if (active)
1385                 return SCSI_MLQUEUE_DEVICE_BUSY;
1386
1387         /*
1388          *      Allocate and initialize a Fib
1389          */
1390         if (!(cmd_fibcontext = 
1391             fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata))) 
1392                 return SCSI_MLQUEUE_HOST_BUSY;
1393
1394         fib_init(cmd_fibcontext);
1395
1396         synchronizecmd = fib_data(cmd_fibcontext);
1397         synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1398         synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1399         synchronizecmd->cid = cpu_to_le32(cid);
1400         synchronizecmd->count = 
1401              cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1402
1403         /*
1404          *      Now send the Fib to the adapter
1405          */
1406         status = fib_send(ContainerCommand,
1407                   cmd_fibcontext,
1408                   sizeof(struct aac_synchronize),
1409                   FsaNormal,
1410                   0, 1,
1411                   (fib_callback)synchronize_callback,
1412                   (void *)scsicmd);
1413
1414         /*
1415          *      Check that the command queued to the controller
1416          */
1417         if (status == -EINPROGRESS)
1418                 return 0;
1419
1420         printk(KERN_WARNING 
1421                 "aac_synchronize: fib_send failed with status: %d.\n", status);
1422         fib_complete(cmd_fibcontext);
1423         fib_free(cmd_fibcontext);
1424         return SCSI_MLQUEUE_HOST_BUSY;
1425 }
1426
1427 /**
1428  *      aac_scsi_cmd()          -       Process SCSI command
1429  *      @scsicmd:               SCSI command block
1430  *
1431  *      Emulate a SCSI command and queue the required request for the
1432  *      aacraid firmware.
1433  */
1434  
1435 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1436 {
1437         u32 cid = 0;
1438         struct Scsi_Host *host = scsicmd->device->host;
1439         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1440         struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1441         int cardtype = dev->cardtype;
1442         int ret;
1443         
1444         /*
1445          *      If the bus, id or lun is out of range, return fail
1446          *      Test does not apply to ID 16, the pseudo id for the controller
1447          *      itself.
1448          */
1449         if (scsicmd->device->id != host->this_id) {
1450                 if ((scsicmd->device->channel == 0) ){
1451                         if( (scsicmd->device->id >= dev->maximum_num_containers) || (scsicmd->device->lun != 0)){ 
1452                                 scsicmd->result = DID_NO_CONNECT << 16;
1453                                 scsicmd->scsi_done(scsicmd);
1454                                 return 0;
1455                         }
1456                         cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
1457
1458                         /*
1459                          *      If the target container doesn't exist, it may have
1460                          *      been newly created
1461                          */
1462                         if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1463                                 switch (scsicmd->cmnd[0]) {
1464                                 case SERVICE_ACTION_IN:
1465                                         if (!(dev->raw_io_interface) ||
1466                                             !(dev->raw_io_64) ||
1467                                             ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
1468                                                 break;
1469                                 case INQUIRY:
1470                                 case READ_CAPACITY:
1471                                 case TEST_UNIT_READY:
1472                                         spin_unlock_irq(host->host_lock);
1473                                         probe_container(dev, cid);
1474                                         if ((fsa_dev_ptr[cid].valid & 1) == 0)
1475                                                 fsa_dev_ptr[cid].valid = 0;
1476                                         spin_lock_irq(host->host_lock);
1477                                         if (fsa_dev_ptr[cid].valid == 0) {
1478                                                 scsicmd->result = DID_NO_CONNECT << 16;
1479                                                 scsicmd->scsi_done(scsicmd);
1480                                                 return 0;
1481                                         }
1482                                 default:
1483                                         break;
1484                                 }
1485                         }
1486                         /*
1487                          *      If the target container still doesn't exist, 
1488                          *      return failure
1489                          */
1490                         if (fsa_dev_ptr[cid].valid == 0) {
1491                                 scsicmd->result = DID_BAD_TARGET << 16;
1492                                 scsicmd->scsi_done(scsicmd);
1493                                 return 0;
1494                         }
1495                 } else {  /* check for physical non-dasd devices */
1496                         if(dev->nondasd_support == 1){
1497                                 return aac_send_srb_fib(scsicmd);
1498                         } else {
1499                                 scsicmd->result = DID_NO_CONNECT << 16;
1500                                 scsicmd->scsi_done(scsicmd);
1501                                 return 0;
1502                         }
1503                 }
1504         }
1505         /*
1506          * else Command for the controller itself
1507          */
1508         else if ((scsicmd->cmnd[0] != INQUIRY) &&       /* only INQUIRY & TUR cmnd supported for controller */
1509                 (scsicmd->cmnd[0] != TEST_UNIT_READY)) 
1510         {
1511                 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1512                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1513                 set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1514                             ILLEGAL_REQUEST,
1515                             SENCODE_INVALID_COMMAND,
1516                             ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1517                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1518                   (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1519                     ? sizeof(scsicmd->sense_buffer)
1520                     : sizeof(dev->fsa_dev[cid].sense_data));
1521                 scsicmd->scsi_done(scsicmd);
1522                 return 0;
1523         }
1524
1525
1526         /* Handle commands here that don't really require going out to the adapter */
1527         switch (scsicmd->cmnd[0]) {
1528         case INQUIRY:
1529         {
1530                 struct inquiry_data inq_data;
1531
1532                 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scsicmd->device->id));
1533                 memset(&inq_data, 0, sizeof (struct inquiry_data));
1534
1535                 inq_data.inqd_ver = 2;  /* claim compliance to SCSI-2 */
1536                 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 */
1537                 inq_data.inqd_len = 31;
1538                 /*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
1539                 inq_data.inqd_pad2= 0x32 ;       /*WBus16|Sync|CmdQue */
1540                 /*
1541                  *      Set the Vendor, Product, and Revision Level
1542                  *      see: <vendor>.c i.e. aac.c
1543                  */
1544                 if (scsicmd->device->id == host->this_id) {
1545                         setinqstr(cardtype, (void *) (inq_data.inqd_vid), (sizeof(container_types)/sizeof(char *)));
1546                         inq_data.inqd_pdt = INQD_PDT_PROC;      /* Processor device */
1547                         aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
1548                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1549                         scsicmd->scsi_done(scsicmd);
1550                         return 0;
1551                 }
1552                 setinqstr(cardtype, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
1553                 inq_data.inqd_pdt = INQD_PDT_DA;        /* Direct/random access device */
1554                 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
1555                 return aac_get_container_name(scsicmd, cid);
1556         }
1557         case SERVICE_ACTION_IN:
1558                 if (!(dev->raw_io_interface) ||
1559                     !(dev->raw_io_64) ||
1560                     ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
1561                         break;
1562         {
1563                 u64 capacity;
1564                 char cp[12];
1565                 unsigned int offset = 0;
1566
1567                 dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
1568                 capacity = fsa_dev_ptr[cid].size - 1;
1569                 if (scsicmd->cmnd[13] > 12) {
1570                         offset = scsicmd->cmnd[13] - 12;
1571                         if (offset > sizeof(cp))
1572                                 break;
1573                         memset(cp, 0, offset);
1574                         aac_internal_transfer(scsicmd, cp, 0, offset);
1575                 }
1576                 cp[0] = (capacity >> 56) & 0xff;
1577                 cp[1] = (capacity >> 48) & 0xff;
1578                 cp[2] = (capacity >> 40) & 0xff;
1579                 cp[3] = (capacity >> 32) & 0xff;
1580                 cp[4] = (capacity >> 24) & 0xff;
1581                 cp[5] = (capacity >> 16) & 0xff;
1582                 cp[6] = (capacity >> 8) & 0xff;
1583                 cp[7] = (capacity >> 0) & 0xff;
1584                 cp[8] = 0;
1585                 cp[9] = 0;
1586                 cp[10] = 2;
1587                 cp[11] = 0;
1588                 aac_internal_transfer(scsicmd, cp, offset, sizeof(cp));
1589
1590                 /* Do not cache partition table for arrays */
1591                 scsicmd->device->removable = 1;
1592
1593                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1594                 scsicmd->scsi_done(scsicmd);
1595
1596                 return 0;
1597         }
1598
1599         case READ_CAPACITY:
1600         {
1601                 u32 capacity;
1602                 char cp[8];
1603
1604                 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
1605                 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
1606                         capacity = fsa_dev_ptr[cid].size - 1;
1607                 else
1608                         capacity = (u32)-1;
1609
1610                 cp[0] = (capacity >> 24) & 0xff;
1611                 cp[1] = (capacity >> 16) & 0xff;
1612                 cp[2] = (capacity >> 8) & 0xff;
1613                 cp[3] = (capacity >> 0) & 0xff;
1614                 cp[4] = 0;
1615                 cp[5] = 0;
1616                 cp[6] = 2;
1617                 cp[7] = 0;
1618                 aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
1619                 /* Do not cache partition table for arrays */
1620                 scsicmd->device->removable = 1;
1621
1622                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1623                 scsicmd->scsi_done(scsicmd);
1624
1625                 return 0;
1626         }
1627
1628         case MODE_SENSE:
1629         {
1630                 char mode_buf[4];
1631
1632                 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
1633                 mode_buf[0] = 3;        /* Mode data length */
1634                 mode_buf[1] = 0;        /* Medium type - default */
1635                 mode_buf[2] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1636                 mode_buf[3] = 0;        /* Block descriptor length */
1637
1638                 aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
1639                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1640                 scsicmd->scsi_done(scsicmd);
1641
1642                 return 0;
1643         }
1644         case MODE_SENSE_10:
1645         {
1646                 char mode_buf[8];
1647
1648                 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
1649                 mode_buf[0] = 0;        /* Mode data length (MSB) */
1650                 mode_buf[1] = 6;        /* Mode data length (LSB) */
1651                 mode_buf[2] = 0;        /* Medium type - default */
1652                 mode_buf[3] = 0;        /* Device-specific param, bit 8: 0/1 = write enabled/protected */
1653                 mode_buf[4] = 0;        /* reserved */
1654                 mode_buf[5] = 0;        /* reserved */
1655                 mode_buf[6] = 0;        /* Block descriptor length (MSB) */
1656                 mode_buf[7] = 0;        /* Block descriptor length (LSB) */
1657                 aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
1658
1659                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1660                 scsicmd->scsi_done(scsicmd);
1661
1662                 return 0;
1663         }
1664         case REQUEST_SENSE:
1665                 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
1666                 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
1667                 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
1668                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1669                 scsicmd->scsi_done(scsicmd);
1670                 return 0;
1671
1672         case ALLOW_MEDIUM_REMOVAL:
1673                 dprintk((KERN_DEBUG "LOCK command.\n"));
1674                 if (scsicmd->cmnd[4])
1675                         fsa_dev_ptr[cid].locked = 1;
1676                 else
1677                         fsa_dev_ptr[cid].locked = 0;
1678
1679                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1680                 scsicmd->scsi_done(scsicmd);
1681                 return 0;
1682         /*
1683          *      These commands are all No-Ops
1684          */
1685         case TEST_UNIT_READY:
1686         case RESERVE:
1687         case RELEASE:
1688         case REZERO_UNIT:
1689         case REASSIGN_BLOCKS:
1690         case SEEK_10:
1691         case START_STOP:
1692                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1693                 scsicmd->scsi_done(scsicmd);
1694                 return 0;
1695         }
1696
1697         switch (scsicmd->cmnd[0]) 
1698         {
1699                 case READ_6:
1700                 case READ_10:
1701                 case READ_12:
1702                 case READ_16:
1703                         /*
1704                          *      Hack to keep track of ordinal number of the device that
1705                          *      corresponds to a container. Needed to convert
1706                          *      containers to /dev/sd device names
1707                          */
1708                          
1709                         spin_unlock_irq(host->host_lock);
1710                         if (scsicmd->request->rq_disk)
1711                                 strlcpy(fsa_dev_ptr[cid].devname,
1712                                 scsicmd->request->rq_disk->disk_name,
1713                                 min(sizeof(fsa_dev_ptr[cid].devname),
1714                                 sizeof(scsicmd->request->rq_disk->disk_name) + 1));
1715                         ret = aac_read(scsicmd, cid);
1716                         spin_lock_irq(host->host_lock);
1717                         return ret;
1718
1719                 case WRITE_6:
1720                 case WRITE_10:
1721                 case WRITE_12:
1722                 case WRITE_16:
1723                         spin_unlock_irq(host->host_lock);
1724                         ret = aac_write(scsicmd, cid);
1725                         spin_lock_irq(host->host_lock);
1726                         return ret;
1727
1728                 case SYNCHRONIZE_CACHE:
1729                         /* Issue FIB to tell Firmware to flush it's cache */
1730                         return aac_synchronize(scsicmd, cid);
1731                         
1732                 default:
1733                         /*
1734                          *      Unhandled commands
1735                          */
1736                         dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
1737                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1738                         set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
1739                                 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
1740                                 ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
1741                         memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1742                           (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
1743                             ? sizeof(scsicmd->sense_buffer)
1744                             : sizeof(dev->fsa_dev[cid].sense_data));
1745                         scsicmd->scsi_done(scsicmd);
1746                         return 0;
1747         }
1748 }
1749
1750 static int query_disk(struct aac_dev *dev, void __user *arg)
1751 {
1752         struct aac_query_disk qd;
1753         struct fsa_dev_info *fsa_dev_ptr;
1754
1755         fsa_dev_ptr = dev->fsa_dev;
1756         if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
1757                 return -EFAULT;
1758         if (qd.cnum == -1)
1759                 qd.cnum = ID_LUN_TO_CONTAINER(qd.id, qd.lun);
1760         else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1)) 
1761         {
1762                 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
1763                         return -EINVAL;
1764                 qd.instance = dev->scsi_host_ptr->host_no;
1765                 qd.bus = 0;
1766                 qd.id = CONTAINER_TO_ID(qd.cnum);
1767                 qd.lun = CONTAINER_TO_LUN(qd.cnum);
1768         }
1769         else return -EINVAL;
1770
1771         qd.valid = fsa_dev_ptr[qd.cnum].valid;
1772         qd.locked = fsa_dev_ptr[qd.cnum].locked;
1773         qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
1774
1775         if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
1776                 qd.unmapped = 1;
1777         else
1778                 qd.unmapped = 0;
1779
1780         strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
1781           min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
1782
1783         if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
1784                 return -EFAULT;
1785         return 0;
1786 }
1787
1788 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
1789 {
1790         struct aac_delete_disk dd;
1791         struct fsa_dev_info *fsa_dev_ptr;
1792
1793         fsa_dev_ptr = dev->fsa_dev;
1794
1795         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1796                 return -EFAULT;
1797
1798         if (dd.cnum >= dev->maximum_num_containers)
1799                 return -EINVAL;
1800         /*
1801          *      Mark this container as being deleted.
1802          */
1803         fsa_dev_ptr[dd.cnum].deleted = 1;
1804         /*
1805          *      Mark the container as no longer valid
1806          */
1807         fsa_dev_ptr[dd.cnum].valid = 0;
1808         return 0;
1809 }
1810
1811 static int delete_disk(struct aac_dev *dev, void __user *arg)
1812 {
1813         struct aac_delete_disk dd;
1814         struct fsa_dev_info *fsa_dev_ptr;
1815
1816         fsa_dev_ptr = dev->fsa_dev;
1817
1818         if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
1819                 return -EFAULT;
1820
1821         if (dd.cnum >= dev->maximum_num_containers)
1822                 return -EINVAL;
1823         /*
1824          *      If the container is locked, it can not be deleted by the API.
1825          */
1826         if (fsa_dev_ptr[dd.cnum].locked)
1827                 return -EBUSY;
1828         else {
1829                 /*
1830                  *      Mark the container as no longer being valid.
1831                  */
1832                 fsa_dev_ptr[dd.cnum].valid = 0;
1833                 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
1834                 return 0;
1835         }
1836 }
1837
1838 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
1839 {
1840         switch (cmd) {
1841         case FSACTL_QUERY_DISK:
1842                 return query_disk(dev, arg);
1843         case FSACTL_DELETE_DISK:
1844                 return delete_disk(dev, arg);
1845         case FSACTL_FORCE_DELETE_DISK:
1846                 return force_delete_disk(dev, arg);
1847         case FSACTL_GET_CONTAINERS:
1848                 return aac_get_containers(dev);
1849         default:
1850                 return -ENOTTY;
1851         }
1852 }
1853
1854 /**
1855  *
1856  * aac_srb_callback
1857  * @context: the context set in the fib - here it is scsi cmd
1858  * @fibptr: pointer to the fib
1859  *
1860  * Handles the completion of a scsi command to a non dasd device
1861  *
1862  */
1863
1864 static void aac_srb_callback(void *context, struct fib * fibptr)
1865 {
1866         struct aac_dev *dev;
1867         struct aac_srb_reply *srbreply;
1868         struct scsi_cmnd *scsicmd;
1869
1870         scsicmd = (struct scsi_cmnd *) context;
1871         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1872
1873         if (fibptr == NULL)
1874                 BUG();
1875
1876         srbreply = (struct aac_srb_reply *) fib_data(fibptr);
1877
1878         scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
1879         /*
1880          *      Calculate resid for sg 
1881          */
1882          
1883         scsicmd->resid = scsicmd->request_bufflen - 
1884                 le32_to_cpu(srbreply->data_xfer_length);
1885
1886         if(scsicmd->use_sg)
1887                 pci_unmap_sg(dev->pdev, 
1888                         (struct scatterlist *)scsicmd->buffer,
1889                         scsicmd->use_sg,
1890                         scsicmd->sc_data_direction);
1891         else if(scsicmd->request_bufflen)
1892                 pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, scsicmd->request_bufflen,
1893                         scsicmd->sc_data_direction);
1894
1895         /*
1896          * First check the fib status
1897          */
1898
1899         if (le32_to_cpu(srbreply->status) != ST_OK){
1900                 int len;
1901                 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
1902                 len = (le32_to_cpu(srbreply->sense_data_size) > 
1903                                 sizeof(scsicmd->sense_buffer)) ?
1904                                 sizeof(scsicmd->sense_buffer) : 
1905                                 le32_to_cpu(srbreply->sense_data_size);
1906                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1907                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
1908         }
1909
1910         /*
1911          * Next check the srb status
1912          */
1913         switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
1914         case SRB_STATUS_ERROR_RECOVERY:
1915         case SRB_STATUS_PENDING:
1916         case SRB_STATUS_SUCCESS:
1917                 if(scsicmd->cmnd[0] == INQUIRY ){
1918                         u8 b;
1919                         u8 b1;
1920                         /* We can't expose disk devices because we can't tell whether they
1921                          * are the raw container drives or stand alone drives.  If they have
1922                          * the removable bit set then we should expose them though.
1923                          */
1924                         b = (*(u8*)scsicmd->buffer)&0x1f;
1925                         b1 = ((u8*)scsicmd->buffer)[1];
1926                         if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER 
1927                                         || (b==TYPE_DISK && (b1&0x80)) ){
1928                                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1929                         /*
1930                          * We will allow disk devices if in RAID/SCSI mode and
1931                          * the channel is 2
1932                          */
1933                         } else if ((dev->raid_scsi_mode) &&
1934                                         (scsicmd->device->channel == 2)) {
1935                                 scsicmd->result = DID_OK << 16 | 
1936                                                 COMMAND_COMPLETE << 8;
1937                         } else {
1938                                 scsicmd->result = DID_NO_CONNECT << 16 | 
1939                                                 COMMAND_COMPLETE << 8;
1940                         }
1941                 } else {
1942                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1943                 }
1944                 break;
1945         case SRB_STATUS_DATA_OVERRUN:
1946                 switch(scsicmd->cmnd[0]){
1947                 case  READ_6:
1948                 case  WRITE_6:
1949                 case  READ_10:
1950                 case  WRITE_10:
1951                 case  READ_12:
1952                 case  WRITE_12:
1953                 case  READ_16:
1954                 case  WRITE_16:
1955                         if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
1956                                 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
1957                         } else {
1958                                 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
1959                         }
1960                         scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
1961                         break;
1962                 case INQUIRY: {
1963                         u8 b;
1964                         u8 b1;
1965                         /* We can't expose disk devices because we can't tell whether they
1966                         * are the raw container drives or stand alone drives
1967                         */
1968                         b = (*(u8*)scsicmd->buffer)&0x0f;
1969                         b1 = ((u8*)scsicmd->buffer)[1];
1970                         if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER
1971                                         || (b==TYPE_DISK && (b1&0x80)) ){
1972                                 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1973                         /*
1974                          * We will allow disk devices if in RAID/SCSI mode and
1975                          * the channel is 2
1976                          */
1977                         } else if ((dev->raid_scsi_mode) &&
1978                                         (scsicmd->device->channel == 2)) {
1979                                 scsicmd->result = DID_OK << 16 | 
1980                                                 COMMAND_COMPLETE << 8;
1981                         } else {
1982                                 scsicmd->result = DID_NO_CONNECT << 16 | 
1983                                                 COMMAND_COMPLETE << 8;
1984                         }
1985                         break;
1986                 }
1987                 default:
1988                         scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
1989                         break;
1990                 }
1991                 break;
1992         case SRB_STATUS_ABORTED:
1993                 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
1994                 break;
1995         case SRB_STATUS_ABORT_FAILED:
1996                 // Not sure about this one - but assuming the hba was trying to abort for some reason
1997                 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
1998                 break;
1999         case SRB_STATUS_PARITY_ERROR:
2000                 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
2001                 break;
2002         case SRB_STATUS_NO_DEVICE:
2003         case SRB_STATUS_INVALID_PATH_ID:
2004         case SRB_STATUS_INVALID_TARGET_ID:
2005         case SRB_STATUS_INVALID_LUN:
2006         case SRB_STATUS_SELECTION_TIMEOUT:
2007                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2008                 break;
2009
2010         case SRB_STATUS_COMMAND_TIMEOUT:
2011         case SRB_STATUS_TIMEOUT:
2012                 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
2013                 break;
2014
2015         case SRB_STATUS_BUSY:
2016                 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2017                 break;
2018
2019         case SRB_STATUS_BUS_RESET:
2020                 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
2021                 break;
2022
2023         case SRB_STATUS_MESSAGE_REJECTED:
2024                 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
2025                 break;
2026         case SRB_STATUS_REQUEST_FLUSHED:
2027         case SRB_STATUS_ERROR:
2028         case SRB_STATUS_INVALID_REQUEST:
2029         case SRB_STATUS_REQUEST_SENSE_FAILED:
2030         case SRB_STATUS_NO_HBA:
2031         case SRB_STATUS_UNEXPECTED_BUS_FREE:
2032         case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
2033         case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
2034         case SRB_STATUS_DELAYED_RETRY:
2035         case SRB_STATUS_BAD_FUNCTION:
2036         case SRB_STATUS_NOT_STARTED:
2037         case SRB_STATUS_NOT_IN_USE:
2038         case SRB_STATUS_FORCE_ABORT:
2039         case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
2040         default:
2041 #ifdef AAC_DETAILED_STATUS_INFO
2042                 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
2043                         le32_to_cpu(srbreply->srb_status) & 0x3F,
2044                         aac_get_status_string(
2045                                 le32_to_cpu(srbreply->srb_status) & 0x3F), 
2046                         scsicmd->cmnd[0], 
2047                         le32_to_cpu(srbreply->scsi_status));
2048 #endif
2049                 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2050                 break;
2051         }
2052         if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){  // Check Condition
2053                 int len;
2054                 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
2055                 len = (le32_to_cpu(srbreply->sense_data_size) > 
2056                                 sizeof(scsicmd->sense_buffer)) ?
2057                                 sizeof(scsicmd->sense_buffer) :
2058                                 le32_to_cpu(srbreply->sense_data_size);
2059 #ifdef AAC_DETAILED_STATUS_INFO
2060                 printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
2061                                         le32_to_cpu(srbreply->status), len);
2062 #endif
2063                 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2064                 
2065         }
2066         /*
2067          * OR in the scsi status (already shifted up a bit)
2068          */
2069         scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
2070
2071         fib_complete(fibptr);
2072         fib_free(fibptr);
2073         aac_io_done(scsicmd);
2074 }
2075
2076 /**
2077  *
2078  * aac_send_scb_fib
2079  * @scsicmd: the scsi command block
2080  *
2081  * This routine will form a FIB and fill in the aac_srb from the 
2082  * scsicmd passed in.
2083  */
2084
2085 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
2086 {
2087         struct fib* cmd_fibcontext;
2088         struct aac_dev* dev;
2089         int status;
2090         struct aac_srb *srbcmd;
2091         u16 fibsize;
2092         u32 flag;
2093         u32 timeout;
2094
2095         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2096         if (scsicmd->device->id >= dev->maximum_num_physicals || 
2097                         scsicmd->device->lun > 7) {
2098                 scsicmd->result = DID_NO_CONNECT << 16;
2099                 scsicmd->scsi_done(scsicmd);
2100                 return 0;
2101         }
2102
2103         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2104         switch(scsicmd->sc_data_direction){
2105         case DMA_TO_DEVICE:
2106                 flag = SRB_DataOut;
2107                 break;
2108         case DMA_BIDIRECTIONAL:
2109                 flag = SRB_DataIn | SRB_DataOut;
2110                 break;
2111         case DMA_FROM_DEVICE:
2112                 flag = SRB_DataIn;
2113                 break;
2114         case DMA_NONE:
2115         default:        /* shuts up some versions of gcc */
2116                 flag = SRB_NoDataXfer;
2117                 break;
2118         }
2119
2120
2121         /*
2122          *      Allocate and initialize a Fib then setup a BlockWrite command
2123          */
2124         if (!(cmd_fibcontext = fib_alloc(dev))) {
2125                 return -1;
2126         }
2127         fib_init(cmd_fibcontext);
2128
2129         srbcmd = (struct aac_srb*) fib_data(cmd_fibcontext);
2130         srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
2131         srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scsicmd->device->channel));
2132         srbcmd->id   = cpu_to_le32(scsicmd->device->id);
2133         srbcmd->lun      = cpu_to_le32(scsicmd->device->lun);
2134         srbcmd->flags    = cpu_to_le32(flag);
2135         timeout = scsicmd->timeout_per_command/HZ;
2136         if(timeout == 0){
2137                 timeout = 1;
2138         }
2139         srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
2140         srbcmd->retry_limit = 0; /* Obsolete parameter */
2141         srbcmd->cdb_size = cpu_to_le32(scsicmd->cmd_len);
2142         
2143         if( dev->dac_support == 1 ) {
2144                 aac_build_sg64(scsicmd, (struct sgmap64*) &srbcmd->sg);
2145                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
2146
2147                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
2148                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
2149                 /*
2150                  *      Build Scatter/Gather list
2151                  */
2152                 fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
2153                         ((le32_to_cpu(srbcmd->sg.count) & 0xff) * 
2154                          sizeof (struct sgentry64));
2155                 BUG_ON (fibsize > (dev->max_fib_size -
2156                                         sizeof(struct aac_fibhdr)));
2157
2158                 /*
2159                  *      Now send the Fib to the adapter
2160                  */
2161                 status = fib_send(ScsiPortCommand64, cmd_fibcontext, 
2162                                 fibsize, FsaNormal, 0, 1,
2163                                   (fib_callback) aac_srb_callback, 
2164                                   (void *) scsicmd);
2165         } else {
2166                 aac_build_sg(scsicmd, (struct sgmap*)&srbcmd->sg);
2167                 srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);
2168
2169                 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
2170                 memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
2171                 /*
2172                  *      Build Scatter/Gather list
2173                  */
2174                 fibsize = sizeof (struct aac_srb) + 
2175                         (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) * 
2176                          sizeof (struct sgentry));
2177                 BUG_ON (fibsize > (dev->max_fib_size -
2178                                         sizeof(struct aac_fibhdr)));
2179
2180                 /*
2181                  *      Now send the Fib to the adapter
2182                  */
2183                 status = fib_send(ScsiPortCommand, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
2184                                   (fib_callback) aac_srb_callback, (void *) scsicmd);
2185         }
2186         /*
2187          *      Check that the command queued to the controller
2188          */
2189         if (status == -EINPROGRESS){
2190                 return 0;
2191         }
2192
2193         printk(KERN_WARNING "aac_srb: fib_send failed with status: %d\n", status);
2194         fib_complete(cmd_fibcontext);
2195         fib_free(cmd_fibcontext);
2196
2197         return -1;
2198 }
2199
2200 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
2201 {
2202         struct aac_dev *dev;
2203         unsigned long byte_count = 0;
2204
2205         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2206         // Get rid of old data
2207         psg->count = 0;
2208         psg->sg[0].addr = 0;
2209         psg->sg[0].count = 0;  
2210         if (scsicmd->use_sg) {
2211                 struct scatterlist *sg;
2212                 int i;
2213                 int sg_count;
2214                 sg = (struct scatterlist *) scsicmd->request_buffer;
2215
2216                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2217                         scsicmd->sc_data_direction);
2218                 psg->count = cpu_to_le32(sg_count);
2219
2220                 byte_count = 0;
2221
2222                 for (i = 0; i < sg_count; i++) {
2223                         psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2224                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2225                         byte_count += sg_dma_len(sg);
2226                         sg++;
2227                 }
2228                 /* hba wants the size to be exact */
2229                 if(byte_count > scsicmd->request_bufflen){
2230                         u32 temp = le32_to_cpu(psg->sg[i-1].count) - 
2231                                 (byte_count - scsicmd->request_bufflen);
2232                         psg->sg[i-1].count = cpu_to_le32(temp);
2233                         byte_count = scsicmd->request_bufflen;
2234                 }
2235                 /* Check for command underflow */
2236                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2237                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2238                                         byte_count, scsicmd->underflow);
2239                 }
2240         }
2241         else if(scsicmd->request_bufflen) {
2242                 dma_addr_t addr; 
2243                 addr = pci_map_single(dev->pdev,
2244                                 scsicmd->request_buffer,
2245                                 scsicmd->request_bufflen,
2246                                 scsicmd->sc_data_direction);
2247                 psg->count = cpu_to_le32(1);
2248                 psg->sg[0].addr = cpu_to_le32(addr);
2249                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);  
2250                 scsicmd->SCp.dma_handle = addr;
2251                 byte_count = scsicmd->request_bufflen;
2252         }
2253         return byte_count;
2254 }
2255
2256
2257 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2258 {
2259         struct aac_dev *dev;
2260         unsigned long byte_count = 0;
2261         u64 addr;
2262
2263         dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2264         // Get rid of old data
2265         psg->count = 0;
2266         psg->sg[0].addr[0] = 0;
2267         psg->sg[0].addr[1] = 0;
2268         psg->sg[0].count = 0;
2269         if (scsicmd->use_sg) {
2270                 struct scatterlist *sg;
2271                 int i;
2272                 int sg_count;
2273                 sg = (struct scatterlist *) scsicmd->request_buffer;
2274
2275                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2276                         scsicmd->sc_data_direction);
2277                 psg->count = cpu_to_le32(sg_count);
2278
2279                 byte_count = 0;
2280
2281                 for (i = 0; i < sg_count; i++) {
2282                         addr = sg_dma_address(sg);
2283                         psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2284                         psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2285                         psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2286                         byte_count += sg_dma_len(sg);
2287                         sg++;
2288                 }
2289                 /* hba wants the size to be exact */
2290                 if(byte_count > scsicmd->request_bufflen){
2291                         u32 temp = le32_to_cpu(psg->sg[i-1].count) - 
2292                                 (byte_count - scsicmd->request_bufflen);
2293                         psg->sg[i-1].count = cpu_to_le32(temp);
2294                         byte_count = scsicmd->request_bufflen;
2295                 }
2296                 /* Check for command underflow */
2297                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2298                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2299                                         byte_count, scsicmd->underflow);
2300                 }
2301         }
2302         else if(scsicmd->request_bufflen) {
2303                 u64 addr; 
2304                 addr = pci_map_single(dev->pdev,
2305                                 scsicmd->request_buffer,
2306                                 scsicmd->request_bufflen,
2307                                 scsicmd->sc_data_direction);
2308                 psg->count = cpu_to_le32(1);
2309                 psg->sg[0].addr[0] = cpu_to_le32(addr & 0xffffffff);
2310                 psg->sg[0].addr[1] = cpu_to_le32(addr >> 32);
2311                 psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);  
2312                 scsicmd->SCp.dma_handle = addr;
2313                 byte_count = scsicmd->request_bufflen;
2314         }
2315         return byte_count;
2316 }
2317
2318 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2319 {
2320         struct Scsi_Host *host = scsicmd->device->host;
2321         struct aac_dev *dev = (struct aac_dev *)host->hostdata;
2322         unsigned long byte_count = 0;
2323
2324         // Get rid of old data
2325         psg->count = 0;
2326         psg->sg[0].next = 0;
2327         psg->sg[0].prev = 0;
2328         psg->sg[0].addr[0] = 0;
2329         psg->sg[0].addr[1] = 0;
2330         psg->sg[0].count = 0;
2331         psg->sg[0].flags = 0;
2332         if (scsicmd->use_sg) {
2333                 struct scatterlist *sg;
2334                 int i;
2335                 int sg_count;
2336                 sg = (struct scatterlist *) scsicmd->request_buffer;
2337
2338                 sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
2339                         scsicmd->sc_data_direction);
2340
2341                 for (i = 0; i < sg_count; i++) {
2342                         int count = sg_dma_len(sg);
2343                         u64 addr = sg_dma_address(sg);
2344                         psg->sg[i].next = 0;
2345                         psg->sg[i].prev = 0;
2346                         psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2347                         psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2348                         psg->sg[i].count = cpu_to_le32(count);
2349                         psg->sg[i].flags = 0;
2350                         byte_count += count;
2351                         sg++;
2352                 }
2353                 psg->count = cpu_to_le32(sg_count);
2354                 /* hba wants the size to be exact */
2355                 if(byte_count > scsicmd->request_bufflen){
2356                         u32 temp = le32_to_cpu(psg->sg[i-1].count) - 
2357                                 (byte_count - scsicmd->request_bufflen);
2358                         psg->sg[i-1].count = cpu_to_le32(temp);
2359                         byte_count = scsicmd->request_bufflen;
2360                 }
2361                 /* Check for command underflow */
2362                 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2363                         printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2364                                         byte_count, scsicmd->underflow);
2365                 }
2366         }
2367         else if(scsicmd->request_bufflen) {
2368                 int count;
2369                 u64 addr;
2370                 scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
2371                                 scsicmd->request_buffer,
2372                                 scsicmd->request_bufflen,
2373                                 scsicmd->sc_data_direction);
2374                 addr = scsicmd->SCp.dma_handle;
2375                 count = scsicmd->request_bufflen;
2376                 psg->count = cpu_to_le32(1);
2377                 psg->sg[0].next = 0;
2378                 psg->sg[0].prev = 0;
2379                 psg->sg[0].addr[1] = cpu_to_le32((u32)(addr>>32));
2380                 psg->sg[0].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2381                 psg->sg[0].count = cpu_to_le32(count);
2382                 psg->sg[0].flags = 0;
2383                 byte_count = scsicmd->request_bufflen;
2384         }
2385         return byte_count;
2386 }
2387
2388 #ifdef AAC_DETAILED_STATUS_INFO
2389
2390 struct aac_srb_status_info {
2391         u32     status;
2392         char    *str;
2393 };
2394
2395
2396 static struct aac_srb_status_info srb_status_info[] = {
2397         { SRB_STATUS_PENDING,           "Pending Status"},
2398         { SRB_STATUS_SUCCESS,           "Success"},
2399         { SRB_STATUS_ABORTED,           "Aborted Command"},
2400         { SRB_STATUS_ABORT_FAILED,      "Abort Failed"},
2401         { SRB_STATUS_ERROR,             "Error Event"}, 
2402         { SRB_STATUS_BUSY,              "Device Busy"},
2403         { SRB_STATUS_INVALID_REQUEST,   "Invalid Request"},
2404         { SRB_STATUS_INVALID_PATH_ID,   "Invalid Path ID"},
2405         { SRB_STATUS_NO_DEVICE,         "No Device"},
2406         { SRB_STATUS_TIMEOUT,           "Timeout"},
2407         { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2408         { SRB_STATUS_COMMAND_TIMEOUT,   "Command Timeout"},
2409         { SRB_STATUS_MESSAGE_REJECTED,  "Message Rejected"},
2410         { SRB_STATUS_BUS_RESET,         "Bus Reset"},
2411         { SRB_STATUS_PARITY_ERROR,      "Parity Error"},
2412         { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2413         { SRB_STATUS_NO_HBA,            "No HBA"},
2414         { SRB_STATUS_DATA_OVERRUN,      "Data Overrun/Data Underrun"},
2415         { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2416         { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2417         { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2418         { SRB_STATUS_REQUEST_FLUSHED,   "Request Flushed"},
2419         { SRB_STATUS_DELAYED_RETRY,     "Delayed Retry"},
2420         { SRB_STATUS_INVALID_LUN,       "Invalid LUN"}, 
2421         { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2422         { SRB_STATUS_BAD_FUNCTION,      "Bad Function"},
2423         { SRB_STATUS_ERROR_RECOVERY,    "Error Recovery"},
2424         { SRB_STATUS_NOT_STARTED,       "Not Started"},
2425         { SRB_STATUS_NOT_IN_USE,        "Not In Use"},
2426         { SRB_STATUS_FORCE_ABORT,       "Force Abort"},
2427         { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2428         { 0xff,                         "Unknown Error"}
2429 };
2430
2431 char *aac_get_status_string(u32 status)
2432 {
2433         int i;
2434
2435         for(i=0; i < (sizeof(srb_status_info)/sizeof(struct aac_srb_status_info)); i++ ){
2436                 if(srb_status_info[i].status == status){
2437                         return srb_status_info[i].str;
2438                 }
2439         }
2440
2441         return "Bad Status Code";
2442 }
2443
2444 #endif