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Merge tag 'blackfin-for-linus' of http://git.kernel.org/pub/scm/linux/kernel/git...
[deliverable/linux.git] / drivers / message / fusion / mptscsih.c
1 /*
2 * linux/drivers/message/fusion/mptscsih.c
3 * For use with LSI PCI chip/adapter(s)
4 * running LSI Fusion MPT (Message Passing Technology) firmware.
5 *
6 * Copyright (c) 1999-2008 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
8 *
9 */
10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
11 /*
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; version 2 of the License.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 NO WARRANTY
22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
26 solely responsible for determining the appropriateness of using and
27 distributing the Program and assumes all risks associated with its
28 exercise of rights under this Agreement, including but not limited to
29 the risks and costs of program errors, damage to or loss of data,
30 programs or equipment, and unavailability or interruption of operations.
31
32 DISCLAIMER OF LIABILITY
33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40
41 You should have received a copy of the GNU General Public License
42 along with this program; if not, write to the Free Software
43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
44 */
45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
46
47 #include <linux/module.h>
48 #include <linux/kernel.h>
49 #include <linux/slab.h>
50 #include <linux/init.h>
51 #include <linux/errno.h>
52 #include <linux/kdev_t.h>
53 #include <linux/blkdev.h>
54 #include <linux/delay.h> /* for mdelay */
55 #include <linux/interrupt.h> /* needed for in_interrupt() proto */
56 #include <linux/reboot.h> /* notifier code */
57 #include <linux/workqueue.h>
58
59 #include <scsi/scsi.h>
60 #include <scsi/scsi_cmnd.h>
61 #include <scsi/scsi_device.h>
62 #include <scsi/scsi_host.h>
63 #include <scsi/scsi_tcq.h>
64 #include <scsi/scsi_dbg.h>
65
66 #include "mptbase.h"
67 #include "mptscsih.h"
68 #include "lsi/mpi_log_sas.h"
69
70 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
71 #define my_NAME "Fusion MPT SCSI Host driver"
72 #define my_VERSION MPT_LINUX_VERSION_COMMON
73 #define MYNAM "mptscsih"
74
75 MODULE_AUTHOR(MODULEAUTHOR);
76 MODULE_DESCRIPTION(my_NAME);
77 MODULE_LICENSE("GPL");
78 MODULE_VERSION(my_VERSION);
79
80 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
81 /*
82 * Other private/forward protos...
83 */
84 struct scsi_cmnd *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
85 static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i);
86 static void mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd);
87 static int SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd);
88 int mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
89 static void mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
90 int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
91
92 static int mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
93 SCSIIORequest_t *pReq, int req_idx);
94 static void mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
95 static void mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
96
97 int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id,
98 int lun, int ctx2abort, ulong timeout);
99
100 int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
101 int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
102
103 void
104 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code);
105 static int mptscsih_get_completion_code(MPT_ADAPTER *ioc,
106 MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply);
107 int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
108 static int mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
109 static void mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
110
111 static int
112 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
113 SCSITaskMgmtReply_t *pScsiTmReply);
114 void mptscsih_remove(struct pci_dev *);
115 void mptscsih_shutdown(struct pci_dev *);
116 #ifdef CONFIG_PM
117 int mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
118 int mptscsih_resume(struct pci_dev *pdev);
119 #endif
120
121 #define SNS_LEN(scp) SCSI_SENSE_BUFFERSIZE
122
123
124 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
125 /*
126 * mptscsih_getFreeChainBuffer - Function to get a free chain
127 * from the MPT_SCSI_HOST FreeChainQ.
128 * @ioc: Pointer to MPT_ADAPTER structure
129 * @req_idx: Index of the SCSI IO request frame. (output)
130 *
131 * return SUCCESS or FAILED
132 */
133 static inline int
134 mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
135 {
136 MPT_FRAME_HDR *chainBuf;
137 unsigned long flags;
138 int rc;
139 int chain_idx;
140
141 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n",
142 ioc->name));
143 spin_lock_irqsave(&ioc->FreeQlock, flags);
144 if (!list_empty(&ioc->FreeChainQ)) {
145 int offset;
146
147 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR,
148 u.frame.linkage.list);
149 list_del(&chainBuf->u.frame.linkage.list);
150 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer;
151 chain_idx = offset / ioc->req_sz;
152 rc = SUCCESS;
153 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
154 "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n",
155 ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx));
156 } else {
157 rc = FAILED;
158 chain_idx = MPT_HOST_NO_CHAIN;
159 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n",
160 ioc->name));
161 }
162 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
163
164 *retIndex = chain_idx;
165 return rc;
166 } /* mptscsih_getFreeChainBuffer() */
167
168 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
169 /*
170 * mptscsih_AddSGE - Add a SGE (plus chain buffers) to the
171 * SCSIIORequest_t Message Frame.
172 * @ioc: Pointer to MPT_ADAPTER structure
173 * @SCpnt: Pointer to scsi_cmnd structure
174 * @pReq: Pointer to SCSIIORequest_t structure
175 *
176 * Returns ...
177 */
178 static int
179 mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
180 SCSIIORequest_t *pReq, int req_idx)
181 {
182 char *psge;
183 char *chainSge;
184 struct scatterlist *sg;
185 int frm_sz;
186 int sges_left, sg_done;
187 int chain_idx = MPT_HOST_NO_CHAIN;
188 int sgeOffset;
189 int numSgeSlots, numSgeThisFrame;
190 u32 sgflags, sgdir, thisxfer = 0;
191 int chain_dma_off = 0;
192 int newIndex;
193 int ii;
194 dma_addr_t v2;
195 u32 RequestNB;
196
197 sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
198 if (sgdir == MPI_SCSIIO_CONTROL_WRITE) {
199 sgdir = MPT_TRANSFER_HOST_TO_IOC;
200 } else {
201 sgdir = MPT_TRANSFER_IOC_TO_HOST;
202 }
203
204 psge = (char *) &pReq->SGL;
205 frm_sz = ioc->req_sz;
206
207 /* Map the data portion, if any.
208 * sges_left = 0 if no data transfer.
209 */
210 sges_left = scsi_dma_map(SCpnt);
211 if (sges_left < 0)
212 return FAILED;
213
214 /* Handle the SG case.
215 */
216 sg = scsi_sglist(SCpnt);
217 sg_done = 0;
218 sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION);
219 chainSge = NULL;
220
221 /* Prior to entering this loop - the following must be set
222 * current MF: sgeOffset (bytes)
223 * chainSge (Null if original MF is not a chain buffer)
224 * sg_done (num SGE done for this MF)
225 */
226
227 nextSGEset:
228 numSgeSlots = ((frm_sz - sgeOffset) / ioc->SGE_size);
229 numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
230
231 sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | sgdir;
232
233 /* Get first (num - 1) SG elements
234 * Skip any SG entries with a length of 0
235 * NOTE: at finish, sg and psge pointed to NEXT data/location positions
236 */
237 for (ii=0; ii < (numSgeThisFrame-1); ii++) {
238 thisxfer = sg_dma_len(sg);
239 if (thisxfer == 0) {
240 /* Get next SG element from the OS */
241 sg = sg_next(sg);
242 sg_done++;
243 continue;
244 }
245
246 v2 = sg_dma_address(sg);
247 ioc->add_sge(psge, sgflags | thisxfer, v2);
248
249 /* Get next SG element from the OS */
250 sg = sg_next(sg);
251 psge += ioc->SGE_size;
252 sgeOffset += ioc->SGE_size;
253 sg_done++;
254 }
255
256 if (numSgeThisFrame == sges_left) {
257 /* Add last element, end of buffer and end of list flags.
258 */
259 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT |
260 MPT_SGE_FLAGS_END_OF_BUFFER |
261 MPT_SGE_FLAGS_END_OF_LIST;
262
263 /* Add last SGE and set termination flags.
264 * Note: Last SGE may have a length of 0 - which should be ok.
265 */
266 thisxfer = sg_dma_len(sg);
267
268 v2 = sg_dma_address(sg);
269 ioc->add_sge(psge, sgflags | thisxfer, v2);
270 sgeOffset += ioc->SGE_size;
271 sg_done++;
272
273 if (chainSge) {
274 /* The current buffer is a chain buffer,
275 * but there is not another one.
276 * Update the chain element
277 * Offset and Length fields.
278 */
279 ioc->add_chain((char *)chainSge, 0, sgeOffset,
280 ioc->ChainBufferDMA + chain_dma_off);
281 } else {
282 /* The current buffer is the original MF
283 * and there is no Chain buffer.
284 */
285 pReq->ChainOffset = 0;
286 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03;
287 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
288 "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
289 ioc->RequestNB[req_idx] = RequestNB;
290 }
291 } else {
292 /* At least one chain buffer is needed.
293 * Complete the first MF
294 * - last SGE element, set the LastElement bit
295 * - set ChainOffset (words) for orig MF
296 * (OR finish previous MF chain buffer)
297 * - update MFStructPtr ChainIndex
298 * - Populate chain element
299 * Also
300 * Loop until done.
301 */
302
303 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n",
304 ioc->name, sg_done));
305
306 /* Set LAST_ELEMENT flag for last non-chain element
307 * in the buffer. Since psge points at the NEXT
308 * SGE element, go back one SGE element, update the flags
309 * and reset the pointer. (Note: sgflags & thisxfer are already
310 * set properly).
311 */
312 if (sg_done) {
313 u32 *ptmp = (u32 *) (psge - ioc->SGE_size);
314 sgflags = le32_to_cpu(*ptmp);
315 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT;
316 *ptmp = cpu_to_le32(sgflags);
317 }
318
319 if (chainSge) {
320 /* The current buffer is a chain buffer.
321 * chainSge points to the previous Chain Element.
322 * Update its chain element Offset and Length (must
323 * include chain element size) fields.
324 * Old chain element is now complete.
325 */
326 u8 nextChain = (u8) (sgeOffset >> 2);
327 sgeOffset += ioc->SGE_size;
328 ioc->add_chain((char *)chainSge, nextChain, sgeOffset,
329 ioc->ChainBufferDMA + chain_dma_off);
330 } else {
331 /* The original MF buffer requires a chain buffer -
332 * set the offset.
333 * Last element in this MF is a chain element.
334 */
335 pReq->ChainOffset = (u8) (sgeOffset >> 2);
336 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03;
337 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
338 ioc->RequestNB[req_idx] = RequestNB;
339 }
340
341 sges_left -= sg_done;
342
343
344 /* NOTE: psge points to the beginning of the chain element
345 * in current buffer. Get a chain buffer.
346 */
347 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
348 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
349 "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
350 ioc->name, pReq->CDB[0], SCpnt));
351 return FAILED;
352 }
353
354 /* Update the tracking arrays.
355 * If chainSge == NULL, update ReqToChain, else ChainToChain
356 */
357 if (chainSge) {
358 ioc->ChainToChain[chain_idx] = newIndex;
359 } else {
360 ioc->ReqToChain[req_idx] = newIndex;
361 }
362 chain_idx = newIndex;
363 chain_dma_off = ioc->req_sz * chain_idx;
364
365 /* Populate the chainSGE for the current buffer.
366 * - Set chain buffer pointer to psge and fill
367 * out the Address and Flags fields.
368 */
369 chainSge = (char *) psge;
370 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Current buff @ %p (index 0x%x)",
371 ioc->name, psge, req_idx));
372
373 /* Start the SGE for the next buffer
374 */
375 psge = (char *) (ioc->ChainBuffer + chain_dma_off);
376 sgeOffset = 0;
377 sg_done = 0;
378
379 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Chain buff @ %p (index 0x%x)\n",
380 ioc->name, psge, chain_idx));
381
382 /* Start the SGE for the next buffer
383 */
384
385 goto nextSGEset;
386 }
387
388 return SUCCESS;
389 } /* mptscsih_AddSGE() */
390
391 static void
392 mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
393 U32 SlotStatus)
394 {
395 MPT_FRAME_HDR *mf;
396 SEPRequest_t *SEPMsg;
397
398 if (ioc->bus_type != SAS)
399 return;
400
401 /* Not supported for hidden raid components
402 */
403 if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
404 return;
405
406 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
407 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
408 ioc->name,__func__));
409 return;
410 }
411
412 SEPMsg = (SEPRequest_t *)mf;
413 SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
414 SEPMsg->Bus = vtarget->channel;
415 SEPMsg->TargetID = vtarget->id;
416 SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
417 SEPMsg->SlotStatus = SlotStatus;
418 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
419 "Sending SEP cmd=%x channel=%d id=%d\n",
420 ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
421 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
422 }
423
424 #ifdef CONFIG_FUSION_LOGGING
425 /**
426 * mptscsih_info_scsiio - debug print info on reply frame
427 * @ioc: Pointer to MPT_ADAPTER structure
428 * @sc: original scsi cmnd pointer
429 * @pScsiReply: Pointer to MPT reply frame
430 *
431 * MPT_DEBUG_REPLY needs to be enabled to obtain this info
432 *
433 * Refer to lsi/mpi.h.
434 **/
435 static void
436 mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
437 {
438 char *desc = NULL;
439 char *desc1 = NULL;
440 u16 ioc_status;
441 u8 skey, asc, ascq;
442
443 ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
444
445 switch (ioc_status) {
446
447 case MPI_IOCSTATUS_SUCCESS:
448 desc = "success";
449 break;
450 case MPI_IOCSTATUS_SCSI_INVALID_BUS:
451 desc = "invalid bus";
452 break;
453 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
454 desc = "invalid target_id";
455 break;
456 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
457 desc = "device not there";
458 break;
459 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
460 desc = "data overrun";
461 break;
462 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
463 desc = "data underrun";
464 break;
465 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
466 desc = "I/O data error";
467 break;
468 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
469 desc = "protocol error";
470 break;
471 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
472 desc = "task terminated";
473 break;
474 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
475 desc = "residual mismatch";
476 break;
477 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
478 desc = "task management failed";
479 break;
480 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
481 desc = "IOC terminated";
482 break;
483 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
484 desc = "ext terminated";
485 break;
486 default:
487 desc = "";
488 break;
489 }
490
491 switch (pScsiReply->SCSIStatus)
492 {
493
494 case MPI_SCSI_STATUS_SUCCESS:
495 desc1 = "success";
496 break;
497 case MPI_SCSI_STATUS_CHECK_CONDITION:
498 desc1 = "check condition";
499 break;
500 case MPI_SCSI_STATUS_CONDITION_MET:
501 desc1 = "condition met";
502 break;
503 case MPI_SCSI_STATUS_BUSY:
504 desc1 = "busy";
505 break;
506 case MPI_SCSI_STATUS_INTERMEDIATE:
507 desc1 = "intermediate";
508 break;
509 case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET:
510 desc1 = "intermediate condmet";
511 break;
512 case MPI_SCSI_STATUS_RESERVATION_CONFLICT:
513 desc1 = "reservation conflict";
514 break;
515 case MPI_SCSI_STATUS_COMMAND_TERMINATED:
516 desc1 = "command terminated";
517 break;
518 case MPI_SCSI_STATUS_TASK_SET_FULL:
519 desc1 = "task set full";
520 break;
521 case MPI_SCSI_STATUS_ACA_ACTIVE:
522 desc1 = "aca active";
523 break;
524 case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT:
525 desc1 = "fcpext device logged out";
526 break;
527 case MPI_SCSI_STATUS_FCPEXT_NO_LINK:
528 desc1 = "fcpext no link";
529 break;
530 case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED:
531 desc1 = "fcpext unassigned";
532 break;
533 default:
534 desc1 = "";
535 break;
536 }
537
538 scsi_print_command(sc);
539 printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %d\n",
540 ioc->name, pScsiReply->Bus, pScsiReply->TargetID, sc->device->lun);
541 printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
542 "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
543 scsi_get_resid(sc));
544 printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, "
545 "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag),
546 le32_to_cpu(pScsiReply->TransferCount), sc->result);
547
548 printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), "
549 "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
550 ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus,
551 pScsiReply->SCSIState);
552
553 if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
554 skey = sc->sense_buffer[2] & 0x0F;
555 asc = sc->sense_buffer[12];
556 ascq = sc->sense_buffer[13];
557
558 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: "
559 "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq);
560 }
561
562 /*
563 * Look for + dump FCP ResponseInfo[]!
564 */
565 if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
566 pScsiReply->ResponseInfo)
567 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n",
568 ioc->name, le32_to_cpu(pScsiReply->ResponseInfo));
569 }
570 #endif
571
572 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
573 /*
574 * mptscsih_io_done - Main SCSI IO callback routine registered to
575 * Fusion MPT (base) driver
576 * @ioc: Pointer to MPT_ADAPTER structure
577 * @mf: Pointer to original MPT request frame
578 * @r: Pointer to MPT reply frame (NULL if TurboReply)
579 *
580 * This routine is called from mpt.c::mpt_interrupt() at the completion
581 * of any SCSI IO request.
582 * This routine is registered with the Fusion MPT (base) driver at driver
583 * load/init time via the mpt_register() API call.
584 *
585 * Returns 1 indicating alloc'd request frame ptr should be freed.
586 */
587 int
588 mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
589 {
590 struct scsi_cmnd *sc;
591 MPT_SCSI_HOST *hd;
592 SCSIIORequest_t *pScsiReq;
593 SCSIIOReply_t *pScsiReply;
594 u16 req_idx, req_idx_MR;
595 VirtDevice *vdevice;
596 VirtTarget *vtarget;
597
598 hd = shost_priv(ioc->sh);
599 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
600 req_idx_MR = (mr != NULL) ?
601 le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
602
603 /* Special case, where already freed message frame is received from
604 * Firmware. It happens with Resetting IOC.
605 * Return immediately. Do not care
606 */
607 if ((req_idx != req_idx_MR) ||
608 (le32_to_cpu(mf->u.frame.linkage.arg1) == 0xdeadbeaf))
609 return 0;
610
611 sc = mptscsih_getclear_scsi_lookup(ioc, req_idx);
612 if (sc == NULL) {
613 MPIHeader_t *hdr = (MPIHeader_t *)mf;
614
615 /* Remark: writeSDP1 will use the ScsiDoneCtx
616 * If a SCSI I/O cmd, device disabled by OS and
617 * completion done. Cannot touch sc struct. Just free mem.
618 */
619 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST)
620 printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n",
621 ioc->name);
622
623 mptscsih_freeChainBuffers(ioc, req_idx);
624 return 1;
625 }
626
627 if ((unsigned char *)mf != sc->host_scribble) {
628 mptscsih_freeChainBuffers(ioc, req_idx);
629 return 1;
630 }
631
632 if (ioc->bus_type == SAS) {
633 VirtDevice *vdevice = sc->device->hostdata;
634
635 if (!vdevice || !vdevice->vtarget ||
636 vdevice->vtarget->deleted) {
637 sc->result = DID_NO_CONNECT << 16;
638 goto out;
639 }
640 }
641
642 sc->host_scribble = NULL;
643 sc->result = DID_OK << 16; /* Set default reply as OK */
644 pScsiReq = (SCSIIORequest_t *) mf;
645 pScsiReply = (SCSIIOReply_t *) mr;
646
647 if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
648 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
649 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n",
650 ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag));
651 }else{
652 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
653 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
654 ioc->name, mf, mr, sc, req_idx));
655 }
656
657 if (pScsiReply == NULL) {
658 /* special context reply handling */
659 ;
660 } else {
661 u32 xfer_cnt;
662 u16 status;
663 u8 scsi_state, scsi_status;
664 u32 log_info;
665
666 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
667
668 scsi_state = pScsiReply->SCSIState;
669 scsi_status = pScsiReply->SCSIStatus;
670 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
671 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
672 log_info = le32_to_cpu(pScsiReply->IOCLogInfo);
673
674 /*
675 * if we get a data underrun indication, yet no data was
676 * transferred and the SCSI status indicates that the
677 * command was never started, change the data underrun
678 * to success
679 */
680 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
681 (scsi_status == MPI_SCSI_STATUS_BUSY ||
682 scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT ||
683 scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) {
684 status = MPI_IOCSTATUS_SUCCESS;
685 }
686
687 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
688 mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);
689
690 /*
691 * Look for + dump FCP ResponseInfo[]!
692 */
693 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
694 pScsiReply->ResponseInfo) {
695 printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%d] "
696 "FCP_ResponseInfo=%08xh\n", ioc->name,
697 sc->device->host->host_no, sc->device->channel,
698 sc->device->id, sc->device->lun,
699 le32_to_cpu(pScsiReply->ResponseInfo));
700 }
701
702 switch(status) {
703 case MPI_IOCSTATUS_BUSY: /* 0x0002 */
704 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES: /* 0x0006 */
705 /* CHECKME!
706 * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry)
707 * But not: DID_BUS_BUSY lest one risk
708 * killing interrupt handler:-(
709 */
710 sc->result = SAM_STAT_BUSY;
711 break;
712
713 case MPI_IOCSTATUS_SCSI_INVALID_BUS: /* 0x0041 */
714 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID: /* 0x0042 */
715 sc->result = DID_BAD_TARGET << 16;
716 break;
717
718 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
719 /* Spoof to SCSI Selection Timeout! */
720 if (ioc->bus_type != FC)
721 sc->result = DID_NO_CONNECT << 16;
722 /* else fibre, just stall until rescan event */
723 else
724 sc->result = DID_REQUEUE << 16;
725
726 if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
727 hd->sel_timeout[pScsiReq->TargetID]++;
728
729 vdevice = sc->device->hostdata;
730 if (!vdevice)
731 break;
732 vtarget = vdevice->vtarget;
733 if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) {
734 mptscsih_issue_sep_command(ioc, vtarget,
735 MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED);
736 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON;
737 }
738 break;
739
740 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
741 if ( ioc->bus_type == SAS ) {
742 u16 ioc_status =
743 le16_to_cpu(pScsiReply->IOCStatus);
744 if ((ioc_status &
745 MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
746 &&
747 ((log_info & SAS_LOGINFO_MASK) ==
748 SAS_LOGINFO_NEXUS_LOSS)) {
749 VirtDevice *vdevice =
750 sc->device->hostdata;
751
752 /* flag the device as being in
753 * device removal delay so we can
754 * notify the midlayer to hold off
755 * on timeout eh */
756 if (vdevice && vdevice->
757 vtarget &&
758 vdevice->vtarget->
759 raidVolume)
760 printk(KERN_INFO
761 "Skipping Raid Volume"
762 "for inDMD\n");
763 else if (vdevice &&
764 vdevice->vtarget)
765 vdevice->vtarget->
766 inDMD = 1;
767
768 sc->result =
769 (DID_TRANSPORT_DISRUPTED
770 << 16);
771 break;
772 }
773 } else if (ioc->bus_type == FC) {
774 /*
775 * The FC IOC may kill a request for variety of
776 * reasons, some of which may be recovered by a
777 * retry, some which are unlikely to be
778 * recovered. Return DID_ERROR instead of
779 * DID_RESET to permit retry of the command,
780 * just not an infinite number of them
781 */
782 sc->result = DID_ERROR << 16;
783 break;
784 }
785
786 /*
787 * Allow non-SAS & non-NEXUS_LOSS to drop into below code
788 */
789
790 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
791 /* Linux handles an unsolicited DID_RESET better
792 * than an unsolicited DID_ABORT.
793 */
794 sc->result = DID_RESET << 16;
795 break;
796
797 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
798 if (ioc->bus_type == FC)
799 sc->result = DID_ERROR << 16;
800 else
801 sc->result = DID_RESET << 16;
802 break;
803
804 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: /* 0x0049 */
805 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
806 if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
807 sc->result=DID_SOFT_ERROR << 16;
808 else /* Sufficient data transfer occurred */
809 sc->result = (DID_OK << 16) | scsi_status;
810 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
811 "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
812 ioc->name, sc->result, sc->device->channel, sc->device->id));
813 break;
814
815 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
816 /*
817 * Do upfront check for valid SenseData and give it
818 * precedence!
819 */
820 sc->result = (DID_OK << 16) | scsi_status;
821 if (!(scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
822
823 /*
824 * For an Errata on LSI53C1030
825 * When the length of request data
826 * and transfer data are different
827 * with result of command (READ or VERIFY),
828 * DID_SOFT_ERROR is set.
829 */
830 if (ioc->bus_type == SPI) {
831 if ((pScsiReq->CDB[0] == READ_6 && ((pScsiReq->CDB[1] & 0x02) == 0)) ||
832 pScsiReq->CDB[0] == READ_10 ||
833 pScsiReq->CDB[0] == READ_12 ||
834 (pScsiReq->CDB[0] == READ_16 &&
835 ((pScsiReq->CDB[1] & 0x02) == 0)) ||
836 pScsiReq->CDB[0] == VERIFY ||
837 pScsiReq->CDB[0] == VERIFY_16) {
838 if (scsi_bufflen(sc) !=
839 xfer_cnt) {
840 sc->result =
841 DID_SOFT_ERROR << 16;
842 printk(KERN_WARNING "Errata"
843 "on LSI53C1030 occurred."
844 "sc->req_bufflen=0x%02x,"
845 "xfer_cnt=0x%02x\n",
846 scsi_bufflen(sc),
847 xfer_cnt);
848 }
849 }
850 }
851
852 if (xfer_cnt < sc->underflow) {
853 if (scsi_status == SAM_STAT_BUSY)
854 sc->result = SAM_STAT_BUSY;
855 else
856 sc->result = DID_SOFT_ERROR << 16;
857 }
858 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
859 /* What to do?
860 */
861 sc->result = DID_SOFT_ERROR << 16;
862 }
863 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
864 /* Not real sure here either... */
865 sc->result = DID_RESET << 16;
866 }
867 }
868
869
870 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
871 " sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
872 ioc->name, sc->underflow));
873 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
874 " ActBytesXferd=%02xh\n", ioc->name, xfer_cnt));
875
876 /* Report Queue Full
877 */
878 if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
879 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
880
881 break;
882
883 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: /* 0x0044 */
884 scsi_set_resid(sc, 0);
885 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
886 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
887 sc->result = (DID_OK << 16) | scsi_status;
888 if (scsi_state == 0) {
889 ;
890 } else if (scsi_state &
891 MPI_SCSI_STATE_AUTOSENSE_VALID) {
892
893 /*
894 * For potential trouble on LSI53C1030.
895 * (date:2007.xx.)
896 * It is checked whether the length of
897 * request data is equal to
898 * the length of transfer and residual.
899 * MEDIUM_ERROR is set by incorrect data.
900 */
901 if ((ioc->bus_type == SPI) &&
902 (sc->sense_buffer[2] & 0x20)) {
903 u32 difftransfer;
904 difftransfer =
905 sc->sense_buffer[3] << 24 |
906 sc->sense_buffer[4] << 16 |
907 sc->sense_buffer[5] << 8 |
908 sc->sense_buffer[6];
909 if (((sc->sense_buffer[3] & 0x80) ==
910 0x80) && (scsi_bufflen(sc)
911 != xfer_cnt)) {
912 sc->sense_buffer[2] =
913 MEDIUM_ERROR;
914 sc->sense_buffer[12] = 0xff;
915 sc->sense_buffer[13] = 0xff;
916 printk(KERN_WARNING"Errata"
917 "on LSI53C1030 occurred."
918 "sc->req_bufflen=0x%02x,"
919 "xfer_cnt=0x%02x\n" ,
920 scsi_bufflen(sc),
921 xfer_cnt);
922 }
923 if (((sc->sense_buffer[3] & 0x80)
924 != 0x80) &&
925 (scsi_bufflen(sc) !=
926 xfer_cnt + difftransfer)) {
927 sc->sense_buffer[2] =
928 MEDIUM_ERROR;
929 sc->sense_buffer[12] = 0xff;
930 sc->sense_buffer[13] = 0xff;
931 printk(KERN_WARNING
932 "Errata on LSI53C1030 occurred"
933 "sc->req_bufflen=0x%02x,"
934 " xfer_cnt=0x%02x,"
935 "difftransfer=0x%02x\n",
936 scsi_bufflen(sc),
937 xfer_cnt,
938 difftransfer);
939 }
940 }
941
942 /*
943 * If running against circa 200003dd 909 MPT f/w,
944 * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
945 * (QUEUE_FULL) returned from device! --> get 0x0000?128
946 * and with SenseBytes set to 0.
947 */
948 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
949 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
950
951 }
952 else if (scsi_state &
953 (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
954 ) {
955 /*
956 * What to do?
957 */
958 sc->result = DID_SOFT_ERROR << 16;
959 }
960 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
961 /* Not real sure here either... */
962 sc->result = DID_RESET << 16;
963 }
964 else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
965 /* Device Inq. data indicates that it supports
966 * QTags, but rejects QTag messages.
967 * This command completed OK.
968 *
969 * Not real sure here either so do nothing... */
970 }
971
972 if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
973 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
974
975 /* Add handling of:
976 * Reservation Conflict, Busy,
977 * Command Terminated, CHECK
978 */
979 break;
980
981 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
982 sc->result = DID_SOFT_ERROR << 16;
983 break;
984
985 case MPI_IOCSTATUS_INVALID_FUNCTION: /* 0x0001 */
986 case MPI_IOCSTATUS_INVALID_SGL: /* 0x0003 */
987 case MPI_IOCSTATUS_INTERNAL_ERROR: /* 0x0004 */
988 case MPI_IOCSTATUS_RESERVED: /* 0x0005 */
989 case MPI_IOCSTATUS_INVALID_FIELD: /* 0x0007 */
990 case MPI_IOCSTATUS_INVALID_STATE: /* 0x0008 */
991 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
992 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED: /* 0x004A */
993 default:
994 /*
995 * What to do?
996 */
997 sc->result = DID_SOFT_ERROR << 16;
998 break;
999
1000 } /* switch(status) */
1001
1002 #ifdef CONFIG_FUSION_LOGGING
1003 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
1004 mptscsih_info_scsiio(ioc, sc, pScsiReply);
1005 #endif
1006
1007 } /* end of address reply case */
1008 out:
1009 /* Unmap the DMA buffers, if any. */
1010 scsi_dma_unmap(sc);
1011
1012 sc->scsi_done(sc); /* Issue the command callback */
1013
1014 /* Free Chain buffers */
1015 mptscsih_freeChainBuffers(ioc, req_idx);
1016 return 1;
1017 }
1018
1019 /*
1020 * mptscsih_flush_running_cmds - For each command found, search
1021 * Scsi_Host instance taskQ and reply to OS.
1022 * Called only if recovering from a FW reload.
1023 * @hd: Pointer to a SCSI HOST structure
1024 *
1025 * Returns: None.
1026 *
1027 * Must be called while new I/Os are being queued.
1028 */
1029 void
1030 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
1031 {
1032 MPT_ADAPTER *ioc = hd->ioc;
1033 struct scsi_cmnd *sc;
1034 SCSIIORequest_t *mf = NULL;
1035 int ii;
1036 int channel, id;
1037
1038 for (ii= 0; ii < ioc->req_depth; ii++) {
1039 sc = mptscsih_getclear_scsi_lookup(ioc, ii);
1040 if (!sc)
1041 continue;
1042 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1043 if (!mf)
1044 continue;
1045 channel = mf->Bus;
1046 id = mf->TargetID;
1047 mptscsih_freeChainBuffers(ioc, ii);
1048 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1049 if ((unsigned char *)mf != sc->host_scribble)
1050 continue;
1051 scsi_dma_unmap(sc);
1052 sc->result = DID_RESET << 16;
1053 sc->host_scribble = NULL;
1054 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
1055 "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, "
1056 "idx=%x\n", ioc->name, channel, id, sc, mf, ii));
1057 sc->scsi_done(sc);
1058 }
1059 }
1060 EXPORT_SYMBOL(mptscsih_flush_running_cmds);
1061
1062 /*
1063 * mptscsih_search_running_cmds - Delete any commands associated
1064 * with the specified target and lun. Function called only
1065 * when a lun is disable by mid-layer.
1066 * Do NOT access the referenced scsi_cmnd structure or
1067 * members. Will cause either a paging or NULL ptr error.
1068 * (BUT, BUT, BUT, the code does reference it! - mdr)
1069 * @hd: Pointer to a SCSI HOST structure
1070 * @vdevice: per device private data
1071 *
1072 * Returns: None.
1073 *
1074 * Called from slave_destroy.
1075 */
1076 static void
1077 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
1078 {
1079 SCSIIORequest_t *mf = NULL;
1080 int ii;
1081 struct scsi_cmnd *sc;
1082 struct scsi_lun lun;
1083 MPT_ADAPTER *ioc = hd->ioc;
1084 unsigned long flags;
1085
1086 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1087 for (ii = 0; ii < ioc->req_depth; ii++) {
1088 if ((sc = ioc->ScsiLookup[ii]) != NULL) {
1089
1090 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1091 if (mf == NULL)
1092 continue;
1093 /* If the device is a hidden raid component, then its
1094 * expected that the mf->function will be RAID_SCSI_IO
1095 */
1096 if (vdevice->vtarget->tflags &
1097 MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
1098 MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
1099 continue;
1100
1101 int_to_scsilun(vdevice->lun, &lun);
1102 if ((mf->Bus != vdevice->vtarget->channel) ||
1103 (mf->TargetID != vdevice->vtarget->id) ||
1104 memcmp(lun.scsi_lun, mf->LUN, 8))
1105 continue;
1106
1107 if ((unsigned char *)mf != sc->host_scribble)
1108 continue;
1109 ioc->ScsiLookup[ii] = NULL;
1110 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1111 mptscsih_freeChainBuffers(ioc, ii);
1112 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1113 scsi_dma_unmap(sc);
1114 sc->host_scribble = NULL;
1115 sc->result = DID_NO_CONNECT << 16;
1116 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device,
1117 MYIOC_s_FMT "completing cmds: fw_channel %d, "
1118 "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name,
1119 vdevice->vtarget->channel, vdevice->vtarget->id,
1120 sc, mf, ii));
1121 sc->scsi_done(sc);
1122 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1123 }
1124 }
1125 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1126 return;
1127 }
1128
1129 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1130
1131 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1132 /*
1133 * mptscsih_report_queue_full - Report QUEUE_FULL status returned
1134 * from a SCSI target device.
1135 * @sc: Pointer to scsi_cmnd structure
1136 * @pScsiReply: Pointer to SCSIIOReply_t
1137 * @pScsiReq: Pointer to original SCSI request
1138 *
1139 * This routine periodically reports QUEUE_FULL status returned from a
1140 * SCSI target device. It reports this to the console via kernel
1141 * printk() API call, not more than once every 10 seconds.
1142 */
1143 static void
1144 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1145 {
1146 long time = jiffies;
1147 MPT_SCSI_HOST *hd;
1148 MPT_ADAPTER *ioc;
1149
1150 if (sc->device == NULL)
1151 return;
1152 if (sc->device->host == NULL)
1153 return;
1154 if ((hd = shost_priv(sc->device->host)) == NULL)
1155 return;
1156 ioc = hd->ioc;
1157 if (time - hd->last_queue_full > 10 * HZ) {
1158 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n",
1159 ioc->name, 0, sc->device->id, sc->device->lun));
1160 hd->last_queue_full = time;
1161 }
1162 }
1163
1164 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1165 /*
1166 * mptscsih_remove - Removed scsi devices
1167 * @pdev: Pointer to pci_dev structure
1168 *
1169 *
1170 */
1171 void
1172 mptscsih_remove(struct pci_dev *pdev)
1173 {
1174 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1175 struct Scsi_Host *host = ioc->sh;
1176 MPT_SCSI_HOST *hd;
1177 int sz1;
1178
1179 scsi_remove_host(host);
1180
1181 if((hd = shost_priv(host)) == NULL)
1182 return;
1183
1184 mptscsih_shutdown(pdev);
1185
1186 sz1=0;
1187
1188 if (ioc->ScsiLookup != NULL) {
1189 sz1 = ioc->req_depth * sizeof(void *);
1190 kfree(ioc->ScsiLookup);
1191 ioc->ScsiLookup = NULL;
1192 }
1193
1194 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1195 "Free'd ScsiLookup (%d) memory\n",
1196 ioc->name, sz1));
1197
1198 kfree(hd->info_kbuf);
1199
1200 /* NULL the Scsi_Host pointer
1201 */
1202 ioc->sh = NULL;
1203
1204 scsi_host_put(host);
1205
1206 mpt_detach(pdev);
1207
1208 }
1209
1210 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1211 /*
1212 * mptscsih_shutdown - reboot notifier
1213 *
1214 */
1215 void
1216 mptscsih_shutdown(struct pci_dev *pdev)
1217 {
1218 }
1219
1220 #ifdef CONFIG_PM
1221 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1222 /*
1223 * mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1224 *
1225 *
1226 */
1227 int
1228 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1229 {
1230 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1231
1232 scsi_block_requests(ioc->sh);
1233 flush_scheduled_work();
1234 mptscsih_shutdown(pdev);
1235 return mpt_suspend(pdev,state);
1236 }
1237
1238 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1239 /*
1240 * mptscsih_resume - Fusion MPT scsi driver resume routine.
1241 *
1242 *
1243 */
1244 int
1245 mptscsih_resume(struct pci_dev *pdev)
1246 {
1247 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1248 int rc;
1249
1250 rc = mpt_resume(pdev);
1251 scsi_unblock_requests(ioc->sh);
1252 return rc;
1253 }
1254
1255 #endif
1256
1257 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1258 /**
1259 * mptscsih_info - Return information about MPT adapter
1260 * @SChost: Pointer to Scsi_Host structure
1261 *
1262 * (linux scsi_host_template.info routine)
1263 *
1264 * Returns pointer to buffer where information was written.
1265 */
1266 const char *
1267 mptscsih_info(struct Scsi_Host *SChost)
1268 {
1269 MPT_SCSI_HOST *h;
1270 int size = 0;
1271
1272 h = shost_priv(SChost);
1273
1274 if (h) {
1275 if (h->info_kbuf == NULL)
1276 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1277 return h->info_kbuf;
1278 h->info_kbuf[0] = '\0';
1279
1280 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1281 h->info_kbuf[size-1] = '\0';
1282 }
1283
1284 return h->info_kbuf;
1285 }
1286
1287 int mptscsih_show_info(struct seq_file *m, struct Scsi_Host *host)
1288 {
1289 MPT_SCSI_HOST *hd = shost_priv(host);
1290 MPT_ADAPTER *ioc = hd->ioc;
1291
1292 seq_printf(m, "%s: %s, ", ioc->name, ioc->prod_name);
1293 seq_printf(m, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1294 seq_printf(m, "Ports=%d, ", ioc->facts.NumberOfPorts);
1295 seq_printf(m, "MaxQ=%d\n", ioc->req_depth);
1296
1297 return 0;
1298 }
1299
1300 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1301 #define ADD_INDEX_LOG(req_ent) do { } while(0)
1302
1303 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1304 /**
1305 * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1306 * @SCpnt: Pointer to scsi_cmnd structure
1307 *
1308 * (linux scsi_host_template.queuecommand routine)
1309 * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest
1310 * from a linux scsi_cmnd request and send it to the IOC.
1311 *
1312 * Returns 0. (rtn value discarded by linux scsi mid-layer)
1313 */
1314 int
1315 mptscsih_qcmd(struct scsi_cmnd *SCpnt)
1316 {
1317 MPT_SCSI_HOST *hd;
1318 MPT_FRAME_HDR *mf;
1319 SCSIIORequest_t *pScsiReq;
1320 VirtDevice *vdevice = SCpnt->device->hostdata;
1321 u32 datalen;
1322 u32 scsictl;
1323 u32 scsidir;
1324 u32 cmd_len;
1325 int my_idx;
1326 int ii;
1327 MPT_ADAPTER *ioc;
1328
1329 hd = shost_priv(SCpnt->device->host);
1330 ioc = hd->ioc;
1331
1332 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p\n",
1333 ioc->name, SCpnt));
1334
1335 if (ioc->taskmgmt_quiesce_io)
1336 return SCSI_MLQUEUE_HOST_BUSY;
1337
1338 /*
1339 * Put together a MPT SCSI request...
1340 */
1341 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1342 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1343 ioc->name));
1344 return SCSI_MLQUEUE_HOST_BUSY;
1345 }
1346
1347 pScsiReq = (SCSIIORequest_t *) mf;
1348
1349 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1350
1351 ADD_INDEX_LOG(my_idx);
1352
1353 /* TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1354 * Seems we may receive a buffer (datalen>0) even when there
1355 * will be no data transfer! GRRRRR...
1356 */
1357 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1358 datalen = scsi_bufflen(SCpnt);
1359 scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */
1360 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1361 datalen = scsi_bufflen(SCpnt);
1362 scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */
1363 } else {
1364 datalen = 0;
1365 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1366 }
1367
1368 /* Default to untagged. Once a target structure has been allocated,
1369 * use the Inquiry data to determine if device supports tagged.
1370 */
1371 if (vdevice
1372 && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1373 && (SCpnt->device->tagged_supported)) {
1374 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1375 if (SCpnt->request && SCpnt->request->ioprio) {
1376 if (((SCpnt->request->ioprio & 0x7) == 1) ||
1377 !(SCpnt->request->ioprio & 0x7))
1378 scsictl |= MPI_SCSIIO_CONTROL_HEADOFQ;
1379 }
1380 } else
1381 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1382
1383
1384 /* Use the above information to set up the message frame
1385 */
1386 pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1387 pScsiReq->Bus = vdevice->vtarget->channel;
1388 pScsiReq->ChainOffset = 0;
1389 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
1390 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1391 else
1392 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1393 pScsiReq->CDBLength = SCpnt->cmd_len;
1394 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1395 pScsiReq->Reserved = 0;
1396 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1397 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1398 pScsiReq->Control = cpu_to_le32(scsictl);
1399
1400 /*
1401 * Write SCSI CDB into the message
1402 */
1403 cmd_len = SCpnt->cmd_len;
1404 for (ii=0; ii < cmd_len; ii++)
1405 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1406
1407 for (ii=cmd_len; ii < 16; ii++)
1408 pScsiReq->CDB[ii] = 0;
1409
1410 /* DataLength */
1411 pScsiReq->DataLength = cpu_to_le32(datalen);
1412
1413 /* SenseBuffer low address */
1414 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1415 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1416
1417 /* Now add the SG list
1418 * Always have a SGE even if null length.
1419 */
1420 if (datalen == 0) {
1421 /* Add a NULL SGE */
1422 ioc->add_sge((char *)&pScsiReq->SGL,
1423 MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1424 (dma_addr_t) -1);
1425 } else {
1426 /* Add a 32 or 64 bit SGE */
1427 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1428 goto fail;
1429 }
1430
1431 SCpnt->host_scribble = (unsigned char *)mf;
1432 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1433
1434 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1435 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1436 ioc->name, SCpnt, mf, my_idx));
1437 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1438 return 0;
1439
1440 fail:
1441 mptscsih_freeChainBuffers(ioc, my_idx);
1442 mpt_free_msg_frame(ioc, mf);
1443 return SCSI_MLQUEUE_HOST_BUSY;
1444 }
1445
1446 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1447 /*
1448 * mptscsih_freeChainBuffers - Function to free chain buffers associated
1449 * with a SCSI IO request
1450 * @hd: Pointer to the MPT_SCSI_HOST instance
1451 * @req_idx: Index of the SCSI IO request frame.
1452 *
1453 * Called if SG chain buffer allocation fails and mptscsih callbacks.
1454 * No return.
1455 */
1456 static void
1457 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1458 {
1459 MPT_FRAME_HDR *chain;
1460 unsigned long flags;
1461 int chain_idx;
1462 int next;
1463
1464 /* Get the first chain index and reset
1465 * tracker state.
1466 */
1467 chain_idx = ioc->ReqToChain[req_idx];
1468 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1469
1470 while (chain_idx != MPT_HOST_NO_CHAIN) {
1471
1472 /* Save the next chain buffer index */
1473 next = ioc->ChainToChain[chain_idx];
1474
1475 /* Free this chain buffer and reset
1476 * tracker
1477 */
1478 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1479
1480 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1481 + (chain_idx * ioc->req_sz));
1482
1483 spin_lock_irqsave(&ioc->FreeQlock, flags);
1484 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1485 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1486
1487 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1488 ioc->name, chain_idx));
1489
1490 /* handle next */
1491 chain_idx = next;
1492 }
1493 return;
1494 }
1495
1496 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1497 /*
1498 * Reset Handling
1499 */
1500
1501 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1502 /**
1503 * mptscsih_IssueTaskMgmt - Generic send Task Management function.
1504 * @hd: Pointer to MPT_SCSI_HOST structure
1505 * @type: Task Management type
1506 * @channel: channel number for task management
1507 * @id: Logical Target ID for reset (if appropriate)
1508 * @lun: Logical Unit for reset (if appropriate)
1509 * @ctx2abort: Context for the task to be aborted (if appropriate)
1510 * @timeout: timeout for task management control
1511 *
1512 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1513 * or a non-interrupt thread. In the former, must not call schedule().
1514 *
1515 * Not all fields are meaningfull for all task types.
1516 *
1517 * Returns 0 for SUCCESS, or FAILED.
1518 *
1519 **/
1520 int
1521 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun,
1522 int ctx2abort, ulong timeout)
1523 {
1524 MPT_FRAME_HDR *mf;
1525 SCSITaskMgmt_t *pScsiTm;
1526 int ii;
1527 int retval;
1528 MPT_ADAPTER *ioc = hd->ioc;
1529 unsigned long timeleft;
1530 u8 issue_hard_reset;
1531 u32 ioc_raw_state;
1532 unsigned long time_count;
1533
1534 issue_hard_reset = 0;
1535 ioc_raw_state = mpt_GetIocState(ioc, 0);
1536
1537 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1538 printk(MYIOC_s_WARN_FMT
1539 "TaskMgmt type=%x: IOC Not operational (0x%x)!\n",
1540 ioc->name, type, ioc_raw_state);
1541 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
1542 ioc->name, __func__);
1543 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1544 printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset "
1545 "FAILED!!\n", ioc->name);
1546 return 0;
1547 }
1548
1549 /* DOORBELL ACTIVE check is not required if
1550 * MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported.
1551 */
1552
1553 if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q)
1554 && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) &&
1555 (ioc_raw_state & MPI_DOORBELL_ACTIVE)) {
1556 printk(MYIOC_s_WARN_FMT
1557 "TaskMgmt type=%x: ioc_state: "
1558 "DOORBELL_ACTIVE (0x%x)!\n",
1559 ioc->name, type, ioc_raw_state);
1560 return FAILED;
1561 }
1562
1563 mutex_lock(&ioc->taskmgmt_cmds.mutex);
1564 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
1565 mf = NULL;
1566 retval = FAILED;
1567 goto out;
1568 }
1569
1570 /* Return Fail to calling function if no message frames available.
1571 */
1572 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1573 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1574 "TaskMgmt no msg frames!!\n", ioc->name));
1575 retval = FAILED;
1576 mpt_clear_taskmgmt_in_progress_flag(ioc);
1577 goto out;
1578 }
1579 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
1580 ioc->name, mf));
1581
1582 /* Format the Request
1583 */
1584 pScsiTm = (SCSITaskMgmt_t *) mf;
1585 pScsiTm->TargetID = id;
1586 pScsiTm->Bus = channel;
1587 pScsiTm->ChainOffset = 0;
1588 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1589
1590 pScsiTm->Reserved = 0;
1591 pScsiTm->TaskType = type;
1592 pScsiTm->Reserved1 = 0;
1593 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1594 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1595
1596 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1597
1598 for (ii=0; ii < 7; ii++)
1599 pScsiTm->Reserved2[ii] = 0;
1600
1601 pScsiTm->TaskMsgContext = ctx2abort;
1602
1603 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) "
1604 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort,
1605 type, timeout));
1606
1607 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1608
1609 INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1610 time_count = jiffies;
1611 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1612 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1613 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1614 else {
1615 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1616 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1617 if (retval) {
1618 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1619 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n",
1620 ioc->name, mf, retval));
1621 mpt_free_msg_frame(ioc, mf);
1622 mpt_clear_taskmgmt_in_progress_flag(ioc);
1623 goto out;
1624 }
1625 }
1626
1627 timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
1628 timeout*HZ);
1629 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
1630 retval = FAILED;
1631 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
1632 "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf));
1633 mpt_clear_taskmgmt_in_progress_flag(ioc);
1634 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
1635 goto out;
1636 issue_hard_reset = 1;
1637 goto out;
1638 }
1639
1640 retval = mptscsih_taskmgmt_reply(ioc, type,
1641 (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply);
1642
1643 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1644 "TaskMgmt completed (%d seconds)\n",
1645 ioc->name, jiffies_to_msecs(jiffies - time_count)/1000));
1646
1647 out:
1648
1649 CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1650 if (issue_hard_reset) {
1651 printk(MYIOC_s_WARN_FMT
1652 "Issuing Reset from %s!! doorbell=0x%08x\n",
1653 ioc->name, __func__, mpt_GetIocState(ioc, 0));
1654 retval = (ioc->bus_type == SAS) ?
1655 mpt_HardResetHandler(ioc, CAN_SLEEP) :
1656 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1657 mpt_free_msg_frame(ioc, mf);
1658 }
1659
1660 retval = (retval == 0) ? 0 : FAILED;
1661 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
1662 return retval;
1663 }
1664 EXPORT_SYMBOL(mptscsih_IssueTaskMgmt);
1665
1666 static int
1667 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1668 {
1669 switch (ioc->bus_type) {
1670 case FC:
1671 return 40;
1672 case SAS:
1673 return 30;
1674 case SPI:
1675 default:
1676 return 10;
1677 }
1678 }
1679
1680 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1681 /**
1682 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1683 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1684 *
1685 * (linux scsi_host_template.eh_abort_handler routine)
1686 *
1687 * Returns SUCCESS or FAILED.
1688 **/
1689 int
1690 mptscsih_abort(struct scsi_cmnd * SCpnt)
1691 {
1692 MPT_SCSI_HOST *hd;
1693 MPT_FRAME_HDR *mf;
1694 u32 ctx2abort;
1695 int scpnt_idx;
1696 int retval;
1697 VirtDevice *vdevice;
1698 MPT_ADAPTER *ioc;
1699
1700 /* If we can't locate our host adapter structure, return FAILED status.
1701 */
1702 if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1703 SCpnt->result = DID_RESET << 16;
1704 SCpnt->scsi_done(SCpnt);
1705 printk(KERN_ERR MYNAM ": task abort: "
1706 "can't locate host! (sc=%p)\n", SCpnt);
1707 return FAILED;
1708 }
1709
1710 ioc = hd->ioc;
1711 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1712 ioc->name, SCpnt);
1713 scsi_print_command(SCpnt);
1714
1715 vdevice = SCpnt->device->hostdata;
1716 if (!vdevice || !vdevice->vtarget) {
1717 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1718 "task abort: device has been deleted (sc=%p)\n",
1719 ioc->name, SCpnt));
1720 SCpnt->result = DID_NO_CONNECT << 16;
1721 SCpnt->scsi_done(SCpnt);
1722 retval = SUCCESS;
1723 goto out;
1724 }
1725
1726 /* Task aborts are not supported for hidden raid components.
1727 */
1728 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1729 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1730 "task abort: hidden raid component (sc=%p)\n",
1731 ioc->name, SCpnt));
1732 SCpnt->result = DID_RESET << 16;
1733 retval = FAILED;
1734 goto out;
1735 }
1736
1737 /* Task aborts are not supported for volumes.
1738 */
1739 if (vdevice->vtarget->raidVolume) {
1740 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1741 "task abort: raid volume (sc=%p)\n",
1742 ioc->name, SCpnt));
1743 SCpnt->result = DID_RESET << 16;
1744 retval = FAILED;
1745 goto out;
1746 }
1747
1748 /* Find this command
1749 */
1750 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1751 /* Cmd not found in ScsiLookup.
1752 * Do OS callback.
1753 */
1754 SCpnt->result = DID_RESET << 16;
1755 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1756 "Command not in the active list! (sc=%p)\n", ioc->name,
1757 SCpnt));
1758 retval = SUCCESS;
1759 goto out;
1760 }
1761
1762 if (ioc->timeouts < -1)
1763 ioc->timeouts++;
1764
1765 if (mpt_fwfault_debug)
1766 mpt_halt_firmware(ioc);
1767
1768 /* Most important! Set TaskMsgContext to SCpnt's MsgContext!
1769 * (the IO to be ABORT'd)
1770 *
1771 * NOTE: Since we do not byteswap MsgContext, we do not
1772 * swap it here either. It is an opaque cookie to
1773 * the controller, so it does not matter. -DaveM
1774 */
1775 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1776 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1777 retval = mptscsih_IssueTaskMgmt(hd,
1778 MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1779 vdevice->vtarget->channel,
1780 vdevice->vtarget->id, vdevice->lun,
1781 ctx2abort, mptscsih_get_tm_timeout(ioc));
1782
1783 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) {
1784 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1785 "task abort: command still in active list! (sc=%p)\n",
1786 ioc->name, SCpnt));
1787 retval = FAILED;
1788 } else {
1789 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1790 "task abort: command cleared from active list! (sc=%p)\n",
1791 ioc->name, SCpnt));
1792 retval = SUCCESS;
1793 }
1794
1795 out:
1796 printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n",
1797 ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval,
1798 SCpnt);
1799
1800 return retval;
1801 }
1802
1803 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1804 /**
1805 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant
1806 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1807 *
1808 * (linux scsi_host_template.eh_dev_reset_handler routine)
1809 *
1810 * Returns SUCCESS or FAILED.
1811 **/
1812 int
1813 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1814 {
1815 MPT_SCSI_HOST *hd;
1816 int retval;
1817 VirtDevice *vdevice;
1818 MPT_ADAPTER *ioc;
1819
1820 /* If we can't locate our host adapter structure, return FAILED status.
1821 */
1822 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1823 printk(KERN_ERR MYNAM ": target reset: "
1824 "Can't locate host! (sc=%p)\n", SCpnt);
1825 return FAILED;
1826 }
1827
1828 ioc = hd->ioc;
1829 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1830 ioc->name, SCpnt);
1831 scsi_print_command(SCpnt);
1832
1833 vdevice = SCpnt->device->hostdata;
1834 if (!vdevice || !vdevice->vtarget) {
1835 retval = 0;
1836 goto out;
1837 }
1838
1839 /* Target reset to hidden raid component is not supported
1840 */
1841 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1842 retval = FAILED;
1843 goto out;
1844 }
1845
1846 retval = mptscsih_IssueTaskMgmt(hd,
1847 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1848 vdevice->vtarget->channel,
1849 vdevice->vtarget->id, 0, 0,
1850 mptscsih_get_tm_timeout(ioc));
1851
1852 out:
1853 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1854 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1855
1856 if (retval == 0)
1857 return SUCCESS;
1858 else
1859 return FAILED;
1860 }
1861
1862
1863 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1864 /**
1865 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant
1866 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1867 *
1868 * (linux scsi_host_template.eh_bus_reset_handler routine)
1869 *
1870 * Returns SUCCESS or FAILED.
1871 **/
1872 int
1873 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1874 {
1875 MPT_SCSI_HOST *hd;
1876 int retval;
1877 VirtDevice *vdevice;
1878 MPT_ADAPTER *ioc;
1879
1880 /* If we can't locate our host adapter structure, return FAILED status.
1881 */
1882 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1883 printk(KERN_ERR MYNAM ": bus reset: "
1884 "Can't locate host! (sc=%p)\n", SCpnt);
1885 return FAILED;
1886 }
1887
1888 ioc = hd->ioc;
1889 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1890 ioc->name, SCpnt);
1891 scsi_print_command(SCpnt);
1892
1893 if (ioc->timeouts < -1)
1894 ioc->timeouts++;
1895
1896 vdevice = SCpnt->device->hostdata;
1897 if (!vdevice || !vdevice->vtarget)
1898 return SUCCESS;
1899 retval = mptscsih_IssueTaskMgmt(hd,
1900 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1901 vdevice->vtarget->channel, 0, 0, 0,
1902 mptscsih_get_tm_timeout(ioc));
1903
1904 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1905 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1906
1907 if (retval == 0)
1908 return SUCCESS;
1909 else
1910 return FAILED;
1911 }
1912
1913 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1914 /**
1915 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1916 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1917 *
1918 * (linux scsi_host_template.eh_host_reset_handler routine)
1919 *
1920 * Returns SUCCESS or FAILED.
1921 */
1922 int
1923 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1924 {
1925 MPT_SCSI_HOST * hd;
1926 int status = SUCCESS;
1927 MPT_ADAPTER *ioc;
1928 int retval;
1929
1930 /* If we can't locate the host to reset, then we failed. */
1931 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1932 printk(KERN_ERR MYNAM ": host reset: "
1933 "Can't locate host! (sc=%p)\n", SCpnt);
1934 return FAILED;
1935 }
1936
1937 /* make sure we have no outstanding commands at this stage */
1938 mptscsih_flush_running_cmds(hd);
1939
1940 ioc = hd->ioc;
1941 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
1942 ioc->name, SCpnt);
1943
1944 /* If our attempts to reset the host failed, then return a failed
1945 * status. The host will be taken off line by the SCSI mid-layer.
1946 */
1947 retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1948 if (retval < 0)
1949 status = FAILED;
1950 else
1951 status = SUCCESS;
1952
1953 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
1954 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1955
1956 return status;
1957 }
1958
1959 static int
1960 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
1961 SCSITaskMgmtReply_t *pScsiTmReply)
1962 {
1963 u16 iocstatus;
1964 u32 termination_count;
1965 int retval;
1966
1967 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
1968 retval = FAILED;
1969 goto out;
1970 }
1971
1972 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
1973
1974 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
1975 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
1976
1977 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1978 "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n"
1979 "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n"
1980 "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus,
1981 pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus),
1982 le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode,
1983 termination_count));
1984
1985 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
1986 pScsiTmReply->ResponseCode)
1987 mptscsih_taskmgmt_response_code(ioc,
1988 pScsiTmReply->ResponseCode);
1989
1990 if (iocstatus == MPI_IOCSTATUS_SUCCESS) {
1991 retval = 0;
1992 goto out;
1993 }
1994
1995 retval = FAILED;
1996 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1997 if (termination_count == 1)
1998 retval = 0;
1999 goto out;
2000 }
2001
2002 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
2003 iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
2004 retval = 0;
2005
2006 out:
2007 return retval;
2008 }
2009
2010 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2011 void
2012 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2013 {
2014 char *desc;
2015
2016 switch (response_code) {
2017 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2018 desc = "The task completed.";
2019 break;
2020 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2021 desc = "The IOC received an invalid frame status.";
2022 break;
2023 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2024 desc = "The task type is not supported.";
2025 break;
2026 case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2027 desc = "The requested task failed.";
2028 break;
2029 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2030 desc = "The task completed successfully.";
2031 break;
2032 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2033 desc = "The LUN request is invalid.";
2034 break;
2035 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2036 desc = "The task is in the IOC queue and has not been sent to target.";
2037 break;
2038 default:
2039 desc = "unknown";
2040 break;
2041 }
2042 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2043 ioc->name, response_code, desc);
2044 }
2045 EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
2046
2047 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2048 /**
2049 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2050 * @ioc: Pointer to MPT_ADAPTER structure
2051 * @mf: Pointer to SCSI task mgmt request frame
2052 * @mr: Pointer to SCSI task mgmt reply frame
2053 *
2054 * This routine is called from mptbase.c::mpt_interrupt() at the completion
2055 * of any SCSI task management request.
2056 * This routine is registered with the MPT (base) driver at driver
2057 * load/init time via the mpt_register() API call.
2058 *
2059 * Returns 1 indicating alloc'd request frame ptr should be freed.
2060 **/
2061 int
2062 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf,
2063 MPT_FRAME_HDR *mr)
2064 {
2065 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2066 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr));
2067
2068 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2069
2070 if (!mr)
2071 goto out;
2072
2073 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2074 memcpy(ioc->taskmgmt_cmds.reply, mr,
2075 min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
2076 out:
2077 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
2078 mpt_clear_taskmgmt_in_progress_flag(ioc);
2079 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2080 complete(&ioc->taskmgmt_cmds.done);
2081 if (ioc->bus_type == SAS)
2082 ioc->schedule_target_reset(ioc);
2083 return 1;
2084 }
2085 return 0;
2086 }
2087
2088 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2089 /*
2090 * This is anyones guess quite frankly.
2091 */
2092 int
2093 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2094 sector_t capacity, int geom[])
2095 {
2096 int heads;
2097 int sectors;
2098 sector_t cylinders;
2099 ulong dummy;
2100
2101 heads = 64;
2102 sectors = 32;
2103
2104 dummy = heads * sectors;
2105 cylinders = capacity;
2106 sector_div(cylinders,dummy);
2107
2108 /*
2109 * Handle extended translation size for logical drives
2110 * > 1Gb
2111 */
2112 if ((ulong)capacity >= 0x200000) {
2113 heads = 255;
2114 sectors = 63;
2115 dummy = heads * sectors;
2116 cylinders = capacity;
2117 sector_div(cylinders,dummy);
2118 }
2119
2120 /* return result */
2121 geom[0] = heads;
2122 geom[1] = sectors;
2123 geom[2] = cylinders;
2124
2125 return 0;
2126 }
2127
2128 /* Search IOC page 3 to determine if this is hidden physical disk
2129 *
2130 */
2131 int
2132 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2133 {
2134 struct inactive_raid_component_info *component_info;
2135 int i, j;
2136 RaidPhysDiskPage1_t *phys_disk;
2137 int rc = 0;
2138 int num_paths;
2139
2140 if (!ioc->raid_data.pIocPg3)
2141 goto out;
2142 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2143 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2144 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2145 rc = 1;
2146 goto out;
2147 }
2148 }
2149
2150 if (ioc->bus_type != SAS)
2151 goto out;
2152
2153 /*
2154 * Check if dual path
2155 */
2156 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2157 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2158 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2159 if (num_paths < 2)
2160 continue;
2161 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2162 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2163 if (!phys_disk)
2164 continue;
2165 if ((mpt_raid_phys_disk_pg1(ioc,
2166 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2167 phys_disk))) {
2168 kfree(phys_disk);
2169 continue;
2170 }
2171 for (j = 0; j < num_paths; j++) {
2172 if ((phys_disk->Path[j].Flags &
2173 MPI_RAID_PHYSDISK1_FLAG_INVALID))
2174 continue;
2175 if ((phys_disk->Path[j].Flags &
2176 MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2177 continue;
2178 if ((id == phys_disk->Path[j].PhysDiskID) &&
2179 (channel == phys_disk->Path[j].PhysDiskBus)) {
2180 rc = 1;
2181 kfree(phys_disk);
2182 goto out;
2183 }
2184 }
2185 kfree(phys_disk);
2186 }
2187
2188
2189 /*
2190 * Check inactive list for matching phys disks
2191 */
2192 if (list_empty(&ioc->raid_data.inactive_list))
2193 goto out;
2194
2195 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2196 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2197 list) {
2198 if ((component_info->d.PhysDiskID == id) &&
2199 (component_info->d.PhysDiskBus == channel))
2200 rc = 1;
2201 }
2202 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2203
2204 out:
2205 return rc;
2206 }
2207 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2208
2209 u8
2210 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2211 {
2212 struct inactive_raid_component_info *component_info;
2213 int i, j;
2214 RaidPhysDiskPage1_t *phys_disk;
2215 int rc = -ENXIO;
2216 int num_paths;
2217
2218 if (!ioc->raid_data.pIocPg3)
2219 goto out;
2220 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2221 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2222 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2223 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2224 goto out;
2225 }
2226 }
2227
2228 if (ioc->bus_type != SAS)
2229 goto out;
2230
2231 /*
2232 * Check if dual path
2233 */
2234 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2235 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2236 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2237 if (num_paths < 2)
2238 continue;
2239 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2240 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2241 if (!phys_disk)
2242 continue;
2243 if ((mpt_raid_phys_disk_pg1(ioc,
2244 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2245 phys_disk))) {
2246 kfree(phys_disk);
2247 continue;
2248 }
2249 for (j = 0; j < num_paths; j++) {
2250 if ((phys_disk->Path[j].Flags &
2251 MPI_RAID_PHYSDISK1_FLAG_INVALID))
2252 continue;
2253 if ((phys_disk->Path[j].Flags &
2254 MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2255 continue;
2256 if ((id == phys_disk->Path[j].PhysDiskID) &&
2257 (channel == phys_disk->Path[j].PhysDiskBus)) {
2258 rc = phys_disk->PhysDiskNum;
2259 kfree(phys_disk);
2260 goto out;
2261 }
2262 }
2263 kfree(phys_disk);
2264 }
2265
2266 /*
2267 * Check inactive list for matching phys disks
2268 */
2269 if (list_empty(&ioc->raid_data.inactive_list))
2270 goto out;
2271
2272 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2273 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2274 list) {
2275 if ((component_info->d.PhysDiskID == id) &&
2276 (component_info->d.PhysDiskBus == channel))
2277 rc = component_info->d.PhysDiskNum;
2278 }
2279 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2280
2281 out:
2282 return rc;
2283 }
2284 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2285
2286 /*
2287 * OS entry point to allow for host driver to free allocated memory
2288 * Called if no device present or device being unloaded
2289 */
2290 void
2291 mptscsih_slave_destroy(struct scsi_device *sdev)
2292 {
2293 struct Scsi_Host *host = sdev->host;
2294 MPT_SCSI_HOST *hd = shost_priv(host);
2295 VirtTarget *vtarget;
2296 VirtDevice *vdevice;
2297 struct scsi_target *starget;
2298
2299 starget = scsi_target(sdev);
2300 vtarget = starget->hostdata;
2301 vdevice = sdev->hostdata;
2302 if (!vdevice)
2303 return;
2304
2305 mptscsih_search_running_cmds(hd, vdevice);
2306 vtarget->num_luns--;
2307 mptscsih_synchronize_cache(hd, vdevice);
2308 kfree(vdevice);
2309 sdev->hostdata = NULL;
2310 }
2311
2312 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2313 /*
2314 * mptscsih_change_queue_depth - This function will set a devices queue depth
2315 * @sdev: per scsi_device pointer
2316 * @qdepth: requested queue depth
2317 * @reason: calling context
2318 *
2319 * Adding support for new 'change_queue_depth' api.
2320 */
2321 int
2322 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
2323 {
2324 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
2325 VirtTarget *vtarget;
2326 struct scsi_target *starget;
2327 int max_depth;
2328 int tagged;
2329 MPT_ADAPTER *ioc = hd->ioc;
2330
2331 starget = scsi_target(sdev);
2332 vtarget = starget->hostdata;
2333
2334 if (reason != SCSI_QDEPTH_DEFAULT)
2335 return -EOPNOTSUPP;
2336
2337 if (ioc->bus_type == SPI) {
2338 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2339 max_depth = 1;
2340 else if (sdev->type == TYPE_DISK &&
2341 vtarget->minSyncFactor <= MPT_ULTRA160)
2342 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2343 else
2344 max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2345 } else
2346 max_depth = ioc->sh->can_queue;
2347
2348 if (!sdev->tagged_supported)
2349 max_depth = 1;
2350
2351 if (qdepth > max_depth)
2352 qdepth = max_depth;
2353 if (qdepth == 1)
2354 tagged = 0;
2355 else
2356 tagged = MSG_SIMPLE_TAG;
2357
2358 scsi_adjust_queue_depth(sdev, tagged, qdepth);
2359 return sdev->queue_depth;
2360 }
2361
2362 /*
2363 * OS entry point to adjust the queue_depths on a per-device basis.
2364 * Called once per device the bus scan. Use it to force the queue_depth
2365 * member to 1 if a device does not support Q tags.
2366 * Return non-zero if fails.
2367 */
2368 int
2369 mptscsih_slave_configure(struct scsi_device *sdev)
2370 {
2371 struct Scsi_Host *sh = sdev->host;
2372 VirtTarget *vtarget;
2373 VirtDevice *vdevice;
2374 struct scsi_target *starget;
2375 MPT_SCSI_HOST *hd = shost_priv(sh);
2376 MPT_ADAPTER *ioc = hd->ioc;
2377
2378 starget = scsi_target(sdev);
2379 vtarget = starget->hostdata;
2380 vdevice = sdev->hostdata;
2381
2382 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2383 "device @ %p, channel=%d, id=%d, lun=%d\n",
2384 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2385 if (ioc->bus_type == SPI)
2386 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2387 "sdtr %d wdtr %d ppr %d inq length=%d\n",
2388 ioc->name, sdev->sdtr, sdev->wdtr,
2389 sdev->ppr, sdev->inquiry_len));
2390
2391 vdevice->configured_lun = 1;
2392
2393 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2394 "Queue depth=%d, tflags=%x\n",
2395 ioc->name, sdev->queue_depth, vtarget->tflags));
2396
2397 if (ioc->bus_type == SPI)
2398 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2399 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2400 ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2401 vtarget->minSyncFactor));
2402
2403 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH,
2404 SCSI_QDEPTH_DEFAULT);
2405 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2406 "tagged %d, simple %d, ordered %d\n",
2407 ioc->name,sdev->tagged_supported, sdev->simple_tags,
2408 sdev->ordered_tags));
2409
2410 blk_queue_dma_alignment (sdev->request_queue, 512 - 1);
2411
2412 return 0;
2413 }
2414
2415 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2416 /*
2417 * Private routines...
2418 */
2419
2420 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2421 /* Utility function to copy sense data from the scsi_cmnd buffer
2422 * to the FC and SCSI target structures.
2423 *
2424 */
2425 static void
2426 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2427 {
2428 VirtDevice *vdevice;
2429 SCSIIORequest_t *pReq;
2430 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount);
2431 MPT_ADAPTER *ioc = hd->ioc;
2432
2433 /* Get target structure
2434 */
2435 pReq = (SCSIIORequest_t *) mf;
2436 vdevice = sc->device->hostdata;
2437
2438 if (sense_count) {
2439 u8 *sense_data;
2440 int req_index;
2441
2442 /* Copy the sense received into the scsi command block. */
2443 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2444 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2445 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2446
2447 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2448 */
2449 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2450 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2451 int idx;
2452
2453 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2454 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2455 ioc->events[idx].eventContext = ioc->eventContext;
2456
2457 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2458 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2459 (sc->device->channel << 8) | sc->device->id;
2460
2461 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2462
2463 ioc->eventContext++;
2464 if (ioc->pcidev->vendor ==
2465 PCI_VENDOR_ID_IBM) {
2466 mptscsih_issue_sep_command(ioc,
2467 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2468 vdevice->vtarget->tflags |=
2469 MPT_TARGET_FLAGS_LED_ON;
2470 }
2471 }
2472 }
2473 } else {
2474 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2475 ioc->name));
2476 }
2477 }
2478
2479 /**
2480 * mptscsih_get_scsi_lookup - retrieves scmd entry
2481 * @ioc: Pointer to MPT_ADAPTER structure
2482 * @i: index into the array
2483 *
2484 * Returns the scsi_cmd pointer
2485 */
2486 struct scsi_cmnd *
2487 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2488 {
2489 unsigned long flags;
2490 struct scsi_cmnd *scmd;
2491
2492 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2493 scmd = ioc->ScsiLookup[i];
2494 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2495
2496 return scmd;
2497 }
2498 EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
2499
2500 /**
2501 * mptscsih_getclear_scsi_lookup - retrieves and clears scmd entry from ScsiLookup[] array list
2502 * @ioc: Pointer to MPT_ADAPTER structure
2503 * @i: index into the array
2504 *
2505 * Returns the scsi_cmd pointer
2506 *
2507 **/
2508 static struct scsi_cmnd *
2509 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2510 {
2511 unsigned long flags;
2512 struct scsi_cmnd *scmd;
2513
2514 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2515 scmd = ioc->ScsiLookup[i];
2516 ioc->ScsiLookup[i] = NULL;
2517 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2518
2519 return scmd;
2520 }
2521
2522 /**
2523 * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list
2524 *
2525 * @ioc: Pointer to MPT_ADAPTER structure
2526 * @i: index into the array
2527 * @scmd: scsi_cmnd pointer
2528 *
2529 **/
2530 static void
2531 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2532 {
2533 unsigned long flags;
2534
2535 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2536 ioc->ScsiLookup[i] = scmd;
2537 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2538 }
2539
2540 /**
2541 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2542 * @ioc: Pointer to MPT_ADAPTER structure
2543 * @sc: scsi_cmnd pointer
2544 */
2545 static int
2546 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2547 {
2548 unsigned long flags;
2549 int i, index=-1;
2550
2551 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2552 for (i = 0; i < ioc->req_depth; i++) {
2553 if (ioc->ScsiLookup[i] == sc) {
2554 index = i;
2555 goto out;
2556 }
2557 }
2558
2559 out:
2560 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2561 return index;
2562 }
2563
2564 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2565 int
2566 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2567 {
2568 MPT_SCSI_HOST *hd;
2569
2570 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2571 return 0;
2572
2573 hd = shost_priv(ioc->sh);
2574 switch (reset_phase) {
2575 case MPT_IOC_SETUP_RESET:
2576 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2577 "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
2578 break;
2579 case MPT_IOC_PRE_RESET:
2580 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2581 "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
2582 mptscsih_flush_running_cmds(hd);
2583 break;
2584 case MPT_IOC_POST_RESET:
2585 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2586 "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
2587 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) {
2588 ioc->internal_cmds.status |=
2589 MPT_MGMT_STATUS_DID_IOCRESET;
2590 complete(&ioc->internal_cmds.done);
2591 }
2592 break;
2593 default:
2594 break;
2595 }
2596 return 1; /* currently means nothing really */
2597 }
2598
2599 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2600 int
2601 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2602 {
2603 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2604
2605 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2606 "MPT event (=%02Xh) routed to SCSI host driver!\n",
2607 ioc->name, event));
2608
2609 if ((event == MPI_EVENT_IOC_BUS_RESET ||
2610 event == MPI_EVENT_EXT_BUS_RESET) &&
2611 (ioc->bus_type == SPI) && (ioc->soft_resets < -1))
2612 ioc->soft_resets++;
2613
2614 return 1; /* currently means nothing really */
2615 }
2616
2617 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2618 /*
2619 * Bus Scan and Domain Validation functionality ...
2620 */
2621
2622 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2623 /*
2624 * mptscsih_scandv_complete - Scan and DV callback routine registered
2625 * to Fustion MPT (base) driver.
2626 *
2627 * @ioc: Pointer to MPT_ADAPTER structure
2628 * @mf: Pointer to original MPT request frame
2629 * @mr: Pointer to MPT reply frame (NULL if TurboReply)
2630 *
2631 * This routine is called from mpt.c::mpt_interrupt() at the completion
2632 * of any SCSI IO request.
2633 * This routine is registered with the Fusion MPT (base) driver at driver
2634 * load/init time via the mpt_register() API call.
2635 *
2636 * Returns 1 indicating alloc'd request frame ptr should be freed.
2637 *
2638 * Remark: Sets a completion code and (possibly) saves sense data
2639 * in the IOC member localReply structure.
2640 * Used ONLY for DV and other internal commands.
2641 */
2642 int
2643 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2644 MPT_FRAME_HDR *reply)
2645 {
2646 SCSIIORequest_t *pReq;
2647 SCSIIOReply_t *pReply;
2648 u8 cmd;
2649 u16 req_idx;
2650 u8 *sense_data;
2651 int sz;
2652
2653 ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2654 ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD;
2655 if (!reply)
2656 goto out;
2657
2658 pReply = (SCSIIOReply_t *) reply;
2659 pReq = (SCSIIORequest_t *) req;
2660 ioc->internal_cmds.completion_code =
2661 mptscsih_get_completion_code(ioc, req, reply);
2662 ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2663 memcpy(ioc->internal_cmds.reply, reply,
2664 min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength));
2665 cmd = reply->u.hdr.Function;
2666 if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
2667 (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) &&
2668 (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
2669 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
2670 sense_data = ((u8 *)ioc->sense_buf_pool +
2671 (req_idx * MPT_SENSE_BUFFER_ALLOC));
2672 sz = min_t(int, pReq->SenseBufferLength,
2673 MPT_SENSE_BUFFER_ALLOC);
2674 memcpy(ioc->internal_cmds.sense, sense_data, sz);
2675 }
2676 out:
2677 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING))
2678 return 0;
2679 ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2680 complete(&ioc->internal_cmds.done);
2681 return 1;
2682 }
2683
2684
2685 /**
2686 * mptscsih_get_completion_code - get completion code from MPT request
2687 * @ioc: Pointer to MPT_ADAPTER structure
2688 * @req: Pointer to original MPT request frame
2689 * @reply: Pointer to MPT reply frame (NULL if TurboReply)
2690 *
2691 **/
2692 static int
2693 mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2694 MPT_FRAME_HDR *reply)
2695 {
2696 SCSIIOReply_t *pReply;
2697 MpiRaidActionReply_t *pr;
2698 u8 scsi_status;
2699 u16 status;
2700 int completion_code;
2701
2702 pReply = (SCSIIOReply_t *)reply;
2703 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2704 scsi_status = pReply->SCSIStatus;
2705
2706 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2707 "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh,"
2708 "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState,
2709 scsi_status, le32_to_cpu(pReply->IOCLogInfo)));
2710
2711 switch (status) {
2712
2713 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
2714 completion_code = MPT_SCANDV_SELECTION_TIMEOUT;
2715 break;
2716
2717 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
2718 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
2719 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
2720 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
2721 completion_code = MPT_SCANDV_DID_RESET;
2722 break;
2723
2724 case MPI_IOCSTATUS_BUSY:
2725 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
2726 completion_code = MPT_SCANDV_BUSY;
2727 break;
2728
2729 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
2730 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
2731 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
2732 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2733 completion_code = MPT_SCANDV_GOOD;
2734 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2735 pr = (MpiRaidActionReply_t *)reply;
2736 if (le16_to_cpu(pr->ActionStatus) ==
2737 MPI_RAID_ACTION_ASTATUS_SUCCESS)
2738 completion_code = MPT_SCANDV_GOOD;
2739 else
2740 completion_code = MPT_SCANDV_SOME_ERROR;
2741 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)
2742 completion_code = MPT_SCANDV_SENSE;
2743 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2744 if (req->u.scsireq.CDB[0] == INQUIRY)
2745 completion_code = MPT_SCANDV_ISSUE_SENSE;
2746 else
2747 completion_code = MPT_SCANDV_DID_RESET;
2748 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2749 completion_code = MPT_SCANDV_DID_RESET;
2750 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2751 completion_code = MPT_SCANDV_DID_RESET;
2752 else if (scsi_status == MPI_SCSI_STATUS_BUSY)
2753 completion_code = MPT_SCANDV_BUSY;
2754 else
2755 completion_code = MPT_SCANDV_GOOD;
2756 break;
2757
2758 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
2759 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2760 completion_code = MPT_SCANDV_DID_RESET;
2761 else
2762 completion_code = MPT_SCANDV_SOME_ERROR;
2763 break;
2764 default:
2765 completion_code = MPT_SCANDV_SOME_ERROR;
2766 break;
2767
2768 } /* switch(status) */
2769
2770 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2771 " completionCode set to %08xh\n", ioc->name, completion_code));
2772 return completion_code;
2773 }
2774
2775 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2776 /**
2777 * mptscsih_do_cmd - Do internal command.
2778 * @hd: MPT_SCSI_HOST pointer
2779 * @io: INTERNAL_CMD pointer.
2780 *
2781 * Issue the specified internally generated command and do command
2782 * specific cleanup. For bus scan / DV only.
2783 * NOTES: If command is Inquiry and status is good,
2784 * initialize a target structure, save the data
2785 *
2786 * Remark: Single threaded access only.
2787 *
2788 * Return:
2789 * < 0 if an illegal command or no resources
2790 *
2791 * 0 if good
2792 *
2793 * > 0 if command complete but some type of completion error.
2794 */
2795 static int
2796 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2797 {
2798 MPT_FRAME_HDR *mf;
2799 SCSIIORequest_t *pScsiReq;
2800 int my_idx, ii, dir;
2801 int timeout;
2802 char cmdLen;
2803 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2804 u8 cmd = io->cmd;
2805 MPT_ADAPTER *ioc = hd->ioc;
2806 int ret = 0;
2807 unsigned long timeleft;
2808 unsigned long flags;
2809
2810 /* don't send internal command during diag reset */
2811 spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
2812 if (ioc->ioc_reset_in_progress) {
2813 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2814 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2815 "%s: busy with host reset\n", ioc->name, __func__));
2816 return MPT_SCANDV_BUSY;
2817 }
2818 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2819
2820 mutex_lock(&ioc->internal_cmds.mutex);
2821
2822 /* Set command specific information
2823 */
2824 switch (cmd) {
2825 case INQUIRY:
2826 cmdLen = 6;
2827 dir = MPI_SCSIIO_CONTROL_READ;
2828 CDB[0] = cmd;
2829 CDB[4] = io->size;
2830 timeout = 10;
2831 break;
2832
2833 case TEST_UNIT_READY:
2834 cmdLen = 6;
2835 dir = MPI_SCSIIO_CONTROL_READ;
2836 timeout = 10;
2837 break;
2838
2839 case START_STOP:
2840 cmdLen = 6;
2841 dir = MPI_SCSIIO_CONTROL_READ;
2842 CDB[0] = cmd;
2843 CDB[4] = 1; /*Spin up the disk */
2844 timeout = 15;
2845 break;
2846
2847 case REQUEST_SENSE:
2848 cmdLen = 6;
2849 CDB[0] = cmd;
2850 CDB[4] = io->size;
2851 dir = MPI_SCSIIO_CONTROL_READ;
2852 timeout = 10;
2853 break;
2854
2855 case READ_BUFFER:
2856 cmdLen = 10;
2857 dir = MPI_SCSIIO_CONTROL_READ;
2858 CDB[0] = cmd;
2859 if (io->flags & MPT_ICFLAG_ECHO) {
2860 CDB[1] = 0x0A;
2861 } else {
2862 CDB[1] = 0x02;
2863 }
2864
2865 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2866 CDB[1] |= 0x01;
2867 }
2868 CDB[6] = (io->size >> 16) & 0xFF;
2869 CDB[7] = (io->size >> 8) & 0xFF;
2870 CDB[8] = io->size & 0xFF;
2871 timeout = 10;
2872 break;
2873
2874 case WRITE_BUFFER:
2875 cmdLen = 10;
2876 dir = MPI_SCSIIO_CONTROL_WRITE;
2877 CDB[0] = cmd;
2878 if (io->flags & MPT_ICFLAG_ECHO) {
2879 CDB[1] = 0x0A;
2880 } else {
2881 CDB[1] = 0x02;
2882 }
2883 CDB[6] = (io->size >> 16) & 0xFF;
2884 CDB[7] = (io->size >> 8) & 0xFF;
2885 CDB[8] = io->size & 0xFF;
2886 timeout = 10;
2887 break;
2888
2889 case RESERVE:
2890 cmdLen = 6;
2891 dir = MPI_SCSIIO_CONTROL_READ;
2892 CDB[0] = cmd;
2893 timeout = 10;
2894 break;
2895
2896 case RELEASE:
2897 cmdLen = 6;
2898 dir = MPI_SCSIIO_CONTROL_READ;
2899 CDB[0] = cmd;
2900 timeout = 10;
2901 break;
2902
2903 case SYNCHRONIZE_CACHE:
2904 cmdLen = 10;
2905 dir = MPI_SCSIIO_CONTROL_READ;
2906 CDB[0] = cmd;
2907 // CDB[1] = 0x02; /* set immediate bit */
2908 timeout = 10;
2909 break;
2910
2911 default:
2912 /* Error Case */
2913 ret = -EFAULT;
2914 goto out;
2915 }
2916
2917 /* Get and Populate a free Frame
2918 * MsgContext set in mpt_get_msg_frame call
2919 */
2920 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
2921 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n",
2922 ioc->name, __func__));
2923 ret = MPT_SCANDV_BUSY;
2924 goto out;
2925 }
2926
2927 pScsiReq = (SCSIIORequest_t *) mf;
2928
2929 /* Get the request index */
2930 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2931 ADD_INDEX_LOG(my_idx); /* for debug */
2932
2933 if (io->flags & MPT_ICFLAG_PHYS_DISK) {
2934 pScsiReq->TargetID = io->physDiskNum;
2935 pScsiReq->Bus = 0;
2936 pScsiReq->ChainOffset = 0;
2937 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2938 } else {
2939 pScsiReq->TargetID = io->id;
2940 pScsiReq->Bus = io->channel;
2941 pScsiReq->ChainOffset = 0;
2942 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2943 }
2944
2945 pScsiReq->CDBLength = cmdLen;
2946 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
2947
2948 pScsiReq->Reserved = 0;
2949
2950 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
2951 /* MsgContext set in mpt_get_msg_fram call */
2952
2953 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
2954
2955 if (io->flags & MPT_ICFLAG_TAGGED_CMD)
2956 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
2957 else
2958 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2959
2960 if (cmd == REQUEST_SENSE) {
2961 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2962 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2963 "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd));
2964 }
2965
2966 for (ii = 0; ii < 16; ii++)
2967 pScsiReq->CDB[ii] = CDB[ii];
2968
2969 pScsiReq->DataLength = cpu_to_le32(io->size);
2970 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
2971 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
2972
2973 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2974 "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%d\n",
2975 ioc->name, __func__, cmd, io->channel, io->id, io->lun));
2976
2977 if (dir == MPI_SCSIIO_CONTROL_READ)
2978 ioc->add_sge((char *) &pScsiReq->SGL,
2979 MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma);
2980 else
2981 ioc->add_sge((char *) &pScsiReq->SGL,
2982 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma);
2983
2984 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
2985 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
2986 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done,
2987 timeout*HZ);
2988 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2989 ret = MPT_SCANDV_DID_RESET;
2990 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2991 "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__,
2992 cmd));
2993 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2994 mpt_free_msg_frame(ioc, mf);
2995 goto out;
2996 }
2997 if (!timeleft) {
2998 printk(MYIOC_s_WARN_FMT
2999 "Issuing Reset from %s!! doorbell=0x%08xh"
3000 " cmd=0x%02x\n",
3001 ioc->name, __func__, mpt_GetIocState(ioc, 0),
3002 cmd);
3003 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
3004 mpt_free_msg_frame(ioc, mf);
3005 }
3006 goto out;
3007 }
3008
3009 ret = ioc->internal_cmds.completion_code;
3010 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n",
3011 ioc->name, __func__, ret));
3012
3013 out:
3014 CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
3015 mutex_unlock(&ioc->internal_cmds.mutex);
3016 return ret;
3017 }
3018
3019 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3020 /**
3021 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3022 * @hd: Pointer to a SCSI HOST structure
3023 * @vdevice: virtual target device
3024 *
3025 * Uses the ISR, but with special processing.
3026 * MUST be single-threaded.
3027 *
3028 */
3029 static void
3030 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3031 {
3032 INTERNAL_CMD iocmd;
3033
3034 /* Ignore hidden raid components, this is handled when the command
3035 * is sent to the volume
3036 */
3037 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3038 return;
3039
3040 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3041 !vdevice->configured_lun)
3042 return;
3043
3044 /* Following parameters will not change
3045 * in this routine.
3046 */
3047 iocmd.cmd = SYNCHRONIZE_CACHE;
3048 iocmd.flags = 0;
3049 iocmd.physDiskNum = -1;
3050 iocmd.data = NULL;
3051 iocmd.data_dma = -1;
3052 iocmd.size = 0;
3053 iocmd.rsvd = iocmd.rsvd2 = 0;
3054 iocmd.channel = vdevice->vtarget->channel;
3055 iocmd.id = vdevice->vtarget->id;
3056 iocmd.lun = vdevice->lun;
3057
3058 mptscsih_do_cmd(hd, &iocmd);
3059 }
3060
3061 static ssize_t
3062 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3063 char *buf)
3064 {
3065 struct Scsi_Host *host = class_to_shost(dev);
3066 MPT_SCSI_HOST *hd = shost_priv(host);
3067 MPT_ADAPTER *ioc = hd->ioc;
3068
3069 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3070 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3071 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3072 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3073 ioc->facts.FWVersion.Word & 0x000000FF);
3074 }
3075 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3076
3077 static ssize_t
3078 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3079 char *buf)
3080 {
3081 struct Scsi_Host *host = class_to_shost(dev);
3082 MPT_SCSI_HOST *hd = shost_priv(host);
3083 MPT_ADAPTER *ioc = hd->ioc;
3084
3085 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3086 (ioc->biosVersion & 0xFF000000) >> 24,
3087 (ioc->biosVersion & 0x00FF0000) >> 16,
3088 (ioc->biosVersion & 0x0000FF00) >> 8,
3089 ioc->biosVersion & 0x000000FF);
3090 }
3091 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3092
3093 static ssize_t
3094 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3095 char *buf)
3096 {
3097 struct Scsi_Host *host = class_to_shost(dev);
3098 MPT_SCSI_HOST *hd = shost_priv(host);
3099 MPT_ADAPTER *ioc = hd->ioc;
3100
3101 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3102 }
3103 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3104
3105 static ssize_t
3106 mptscsih_version_product_show(struct device *dev,
3107 struct device_attribute *attr,
3108 char *buf)
3109 {
3110 struct Scsi_Host *host = class_to_shost(dev);
3111 MPT_SCSI_HOST *hd = shost_priv(host);
3112 MPT_ADAPTER *ioc = hd->ioc;
3113
3114 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3115 }
3116 static DEVICE_ATTR(version_product, S_IRUGO,
3117 mptscsih_version_product_show, NULL);
3118
3119 static ssize_t
3120 mptscsih_version_nvdata_persistent_show(struct device *dev,
3121 struct device_attribute *attr,
3122 char *buf)
3123 {
3124 struct Scsi_Host *host = class_to_shost(dev);
3125 MPT_SCSI_HOST *hd = shost_priv(host);
3126 MPT_ADAPTER *ioc = hd->ioc;
3127
3128 return snprintf(buf, PAGE_SIZE, "%02xh\n",
3129 ioc->nvdata_version_persistent);
3130 }
3131 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3132 mptscsih_version_nvdata_persistent_show, NULL);
3133
3134 static ssize_t
3135 mptscsih_version_nvdata_default_show(struct device *dev,
3136 struct device_attribute *attr, char *buf)
3137 {
3138 struct Scsi_Host *host = class_to_shost(dev);
3139 MPT_SCSI_HOST *hd = shost_priv(host);
3140 MPT_ADAPTER *ioc = hd->ioc;
3141
3142 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3143 }
3144 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3145 mptscsih_version_nvdata_default_show, NULL);
3146
3147 static ssize_t
3148 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3149 char *buf)
3150 {
3151 struct Scsi_Host *host = class_to_shost(dev);
3152 MPT_SCSI_HOST *hd = shost_priv(host);
3153 MPT_ADAPTER *ioc = hd->ioc;
3154
3155 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3156 }
3157 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3158
3159 static ssize_t
3160 mptscsih_board_assembly_show(struct device *dev,
3161 struct device_attribute *attr, char *buf)
3162 {
3163 struct Scsi_Host *host = class_to_shost(dev);
3164 MPT_SCSI_HOST *hd = shost_priv(host);
3165 MPT_ADAPTER *ioc = hd->ioc;
3166
3167 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3168 }
3169 static DEVICE_ATTR(board_assembly, S_IRUGO,
3170 mptscsih_board_assembly_show, NULL);
3171
3172 static ssize_t
3173 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3174 char *buf)
3175 {
3176 struct Scsi_Host *host = class_to_shost(dev);
3177 MPT_SCSI_HOST *hd = shost_priv(host);
3178 MPT_ADAPTER *ioc = hd->ioc;
3179
3180 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3181 }
3182 static DEVICE_ATTR(board_tracer, S_IRUGO,
3183 mptscsih_board_tracer_show, NULL);
3184
3185 static ssize_t
3186 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3187 char *buf)
3188 {
3189 struct Scsi_Host *host = class_to_shost(dev);
3190 MPT_SCSI_HOST *hd = shost_priv(host);
3191 MPT_ADAPTER *ioc = hd->ioc;
3192
3193 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3194 }
3195 static DEVICE_ATTR(io_delay, S_IRUGO,
3196 mptscsih_io_delay_show, NULL);
3197
3198 static ssize_t
3199 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3200 char *buf)
3201 {
3202 struct Scsi_Host *host = class_to_shost(dev);
3203 MPT_SCSI_HOST *hd = shost_priv(host);
3204 MPT_ADAPTER *ioc = hd->ioc;
3205
3206 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3207 }
3208 static DEVICE_ATTR(device_delay, S_IRUGO,
3209 mptscsih_device_delay_show, NULL);
3210
3211 static ssize_t
3212 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3213 char *buf)
3214 {
3215 struct Scsi_Host *host = class_to_shost(dev);
3216 MPT_SCSI_HOST *hd = shost_priv(host);
3217 MPT_ADAPTER *ioc = hd->ioc;
3218
3219 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3220 }
3221 static ssize_t
3222 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3223 const char *buf, size_t count)
3224 {
3225 struct Scsi_Host *host = class_to_shost(dev);
3226 MPT_SCSI_HOST *hd = shost_priv(host);
3227 MPT_ADAPTER *ioc = hd->ioc;
3228 int val = 0;
3229
3230 if (sscanf(buf, "%x", &val) != 1)
3231 return -EINVAL;
3232
3233 ioc->debug_level = val;
3234 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3235 ioc->name, ioc->debug_level);
3236 return strlen(buf);
3237 }
3238 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3239 mptscsih_debug_level_show, mptscsih_debug_level_store);
3240
3241 struct device_attribute *mptscsih_host_attrs[] = {
3242 &dev_attr_version_fw,
3243 &dev_attr_version_bios,
3244 &dev_attr_version_mpi,
3245 &dev_attr_version_product,
3246 &dev_attr_version_nvdata_persistent,
3247 &dev_attr_version_nvdata_default,
3248 &dev_attr_board_name,
3249 &dev_attr_board_assembly,
3250 &dev_attr_board_tracer,
3251 &dev_attr_io_delay,
3252 &dev_attr_device_delay,
3253 &dev_attr_debug_level,
3254 NULL,
3255 };
3256
3257 EXPORT_SYMBOL(mptscsih_host_attrs);
3258
3259 EXPORT_SYMBOL(mptscsih_remove);
3260 EXPORT_SYMBOL(mptscsih_shutdown);
3261 #ifdef CONFIG_PM
3262 EXPORT_SYMBOL(mptscsih_suspend);
3263 EXPORT_SYMBOL(mptscsih_resume);
3264 #endif
3265 EXPORT_SYMBOL(mptscsih_show_info);
3266 EXPORT_SYMBOL(mptscsih_info);
3267 EXPORT_SYMBOL(mptscsih_qcmd);
3268 EXPORT_SYMBOL(mptscsih_slave_destroy);
3269 EXPORT_SYMBOL(mptscsih_slave_configure);
3270 EXPORT_SYMBOL(mptscsih_abort);
3271 EXPORT_SYMBOL(mptscsih_dev_reset);
3272 EXPORT_SYMBOL(mptscsih_bus_reset);
3273 EXPORT_SYMBOL(mptscsih_host_reset);
3274 EXPORT_SYMBOL(mptscsih_bios_param);
3275 EXPORT_SYMBOL(mptscsih_io_done);
3276 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3277 EXPORT_SYMBOL(mptscsih_scandv_complete);
3278 EXPORT_SYMBOL(mptscsih_event_process);
3279 EXPORT_SYMBOL(mptscsih_ioc_reset);
3280 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3281
3282 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
Linux kernel - Deliverables
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