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Merge tag 'gpio-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
[linux-2.6.git] / drivers / message / fusion / mptscsih.c
blob727819cc703422578c1f0f71c77efff1333f1c6c
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 * @done: Pointer SCSI mid-layer IO completion function
1308 *
1309 * (linux scsi_host_template.queuecommand routine)
1310 * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest
1311 * from a linux scsi_cmnd request and send it to the IOC.
1312 *
1313 * Returns 0. (rtn value discarded by linux scsi mid-layer)
1314 */
1315 int
1316 mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1317 {
1318 MPT_SCSI_HOST *hd;
1319 MPT_FRAME_HDR *mf;
1320 SCSIIORequest_t *pScsiReq;
1321 VirtDevice *vdevice = SCpnt->device->hostdata;
1322 u32 datalen;
1323 u32 scsictl;
1324 u32 scsidir;
1325 u32 cmd_len;
1326 int my_idx;
1327 int ii;
1328 MPT_ADAPTER *ioc;
1329
1330 hd = shost_priv(SCpnt->device->host);
1331 ioc = hd->ioc;
1332 SCpnt->scsi_done = done;
1333
1334 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
1335 ioc->name, SCpnt, done));
1336
1337 if (ioc->taskmgmt_quiesce_io)
1338 return SCSI_MLQUEUE_HOST_BUSY;
1339
1340 /*
1341 * Put together a MPT SCSI request...
1342 */
1343 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1344 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1345 ioc->name));
1346 return SCSI_MLQUEUE_HOST_BUSY;
1347 }
1348
1349 pScsiReq = (SCSIIORequest_t *) mf;
1350
1351 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1352
1353 ADD_INDEX_LOG(my_idx);
1354
1355 /* TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1356 * Seems we may receive a buffer (datalen>0) even when there
1357 * will be no data transfer! GRRRRR...
1358 */
1359 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1360 datalen = scsi_bufflen(SCpnt);
1361 scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */
1362 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1363 datalen = scsi_bufflen(SCpnt);
1364 scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */
1365 } else {
1366 datalen = 0;
1367 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1368 }
1369
1370 /* Default to untagged. Once a target structure has been allocated,
1371 * use the Inquiry data to determine if device supports tagged.
1372 */
1373 if (vdevice
1374 && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1375 && (SCpnt->device->tagged_supported)) {
1376 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1377 if (SCpnt->request && SCpnt->request->ioprio) {
1378 if (((SCpnt->request->ioprio & 0x7) == 1) ||
1379 !(SCpnt->request->ioprio & 0x7))
1380 scsictl |= MPI_SCSIIO_CONTROL_HEADOFQ;
1381 }
1382 } else
1383 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1384
1385
1386 /* Use the above information to set up the message frame
1387 */
1388 pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1389 pScsiReq->Bus = vdevice->vtarget->channel;
1390 pScsiReq->ChainOffset = 0;
1391 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
1392 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1393 else
1394 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1395 pScsiReq->CDBLength = SCpnt->cmd_len;
1396 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1397 pScsiReq->Reserved = 0;
1398 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1399 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1400 pScsiReq->Control = cpu_to_le32(scsictl);
1401
1402 /*
1403 * Write SCSI CDB into the message
1404 */
1405 cmd_len = SCpnt->cmd_len;
1406 for (ii=0; ii < cmd_len; ii++)
1407 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1408
1409 for (ii=cmd_len; ii < 16; ii++)
1410 pScsiReq->CDB[ii] = 0;
1411
1412 /* DataLength */
1413 pScsiReq->DataLength = cpu_to_le32(datalen);
1414
1415 /* SenseBuffer low address */
1416 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1417 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1418
1419 /* Now add the SG list
1420 * Always have a SGE even if null length.
1421 */
1422 if (datalen == 0) {
1423 /* Add a NULL SGE */
1424 ioc->add_sge((char *)&pScsiReq->SGL,
1425 MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1426 (dma_addr_t) -1);
1427 } else {
1428 /* Add a 32 or 64 bit SGE */
1429 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1430 goto fail;
1431 }
1432
1433 SCpnt->host_scribble = (unsigned char *)mf;
1434 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1435
1436 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1437 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1438 ioc->name, SCpnt, mf, my_idx));
1439 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1440 return 0;
1441
1442 fail:
1443 mptscsih_freeChainBuffers(ioc, my_idx);
1444 mpt_free_msg_frame(ioc, mf);
1445 return SCSI_MLQUEUE_HOST_BUSY;
1446 }
1447
1448 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1449 /*
1450 * mptscsih_freeChainBuffers - Function to free chain buffers associated
1451 * with a SCSI IO request
1452 * @hd: Pointer to the MPT_SCSI_HOST instance
1453 * @req_idx: Index of the SCSI IO request frame.
1454 *
1455 * Called if SG chain buffer allocation fails and mptscsih callbacks.
1456 * No return.
1457 */
1458 static void
1459 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1460 {
1461 MPT_FRAME_HDR *chain;
1462 unsigned long flags;
1463 int chain_idx;
1464 int next;
1465
1466 /* Get the first chain index and reset
1467 * tracker state.
1468 */
1469 chain_idx = ioc->ReqToChain[req_idx];
1470 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1471
1472 while (chain_idx != MPT_HOST_NO_CHAIN) {
1473
1474 /* Save the next chain buffer index */
1475 next = ioc->ChainToChain[chain_idx];
1476
1477 /* Free this chain buffer and reset
1478 * tracker
1479 */
1480 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1481
1482 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1483 + (chain_idx * ioc->req_sz));
1484
1485 spin_lock_irqsave(&ioc->FreeQlock, flags);
1486 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1487 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1488
1489 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1490 ioc->name, chain_idx));
1491
1492 /* handle next */
1493 chain_idx = next;
1494 }
1495 return;
1496 }
1497
1498 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1499 /*
1500 * Reset Handling
1501 */
1502
1503 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1504 /**
1505 * mptscsih_IssueTaskMgmt - Generic send Task Management function.
1506 * @hd: Pointer to MPT_SCSI_HOST structure
1507 * @type: Task Management type
1508 * @channel: channel number for task management
1509 * @id: Logical Target ID for reset (if appropriate)
1510 * @lun: Logical Unit for reset (if appropriate)
1511 * @ctx2abort: Context for the task to be aborted (if appropriate)
1512 * @timeout: timeout for task management control
1513 *
1514 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1515 * or a non-interrupt thread. In the former, must not call schedule().
1516 *
1517 * Not all fields are meaningfull for all task types.
1518 *
1519 * Returns 0 for SUCCESS, or FAILED.
1520 *
1521 **/
1522 int
1523 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun,
1524 int ctx2abort, ulong timeout)
1525 {
1526 MPT_FRAME_HDR *mf;
1527 SCSITaskMgmt_t *pScsiTm;
1528 int ii;
1529 int retval;
1530 MPT_ADAPTER *ioc = hd->ioc;
1531 unsigned long timeleft;
1532 u8 issue_hard_reset;
1533 u32 ioc_raw_state;
1534 unsigned long time_count;
1535
1536 issue_hard_reset = 0;
1537 ioc_raw_state = mpt_GetIocState(ioc, 0);
1538
1539 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1540 printk(MYIOC_s_WARN_FMT
1541 "TaskMgmt type=%x: IOC Not operational (0x%x)!\n",
1542 ioc->name, type, ioc_raw_state);
1543 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
1544 ioc->name, __func__);
1545 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1546 printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset "
1547 "FAILED!!\n", ioc->name);
1548 return 0;
1549 }
1550
1551 /* DOORBELL ACTIVE check is not required if
1552 * MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported.
1553 */
1554
1555 if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q)
1556 && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) &&
1557 (ioc_raw_state & MPI_DOORBELL_ACTIVE)) {
1558 printk(MYIOC_s_WARN_FMT
1559 "TaskMgmt type=%x: ioc_state: "
1560 "DOORBELL_ACTIVE (0x%x)!\n",
1561 ioc->name, type, ioc_raw_state);
1562 return FAILED;
1563 }
1564
1565 mutex_lock(&ioc->taskmgmt_cmds.mutex);
1566 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
1567 mf = NULL;
1568 retval = FAILED;
1569 goto out;
1570 }
1571
1572 /* Return Fail to calling function if no message frames available.
1573 */
1574 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1575 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1576 "TaskMgmt no msg frames!!\n", ioc->name));
1577 retval = FAILED;
1578 mpt_clear_taskmgmt_in_progress_flag(ioc);
1579 goto out;
1580 }
1581 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
1582 ioc->name, mf));
1583
1584 /* Format the Request
1585 */
1586 pScsiTm = (SCSITaskMgmt_t *) mf;
1587 pScsiTm->TargetID = id;
1588 pScsiTm->Bus = channel;
1589 pScsiTm->ChainOffset = 0;
1590 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1591
1592 pScsiTm->Reserved = 0;
1593 pScsiTm->TaskType = type;
1594 pScsiTm->Reserved1 = 0;
1595 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1596 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1597
1598 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1599
1600 for (ii=0; ii < 7; ii++)
1601 pScsiTm->Reserved2[ii] = 0;
1602
1603 pScsiTm->TaskMsgContext = ctx2abort;
1604
1605 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) "
1606 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort,
1607 type, timeout));
1608
1609 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1610
1611 INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1612 time_count = jiffies;
1613 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1614 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1615 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1616 else {
1617 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1618 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1619 if (retval) {
1620 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1621 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n",
1622 ioc->name, mf, retval));
1623 mpt_free_msg_frame(ioc, mf);
1624 mpt_clear_taskmgmt_in_progress_flag(ioc);
1625 goto out;
1626 }
1627 }
1628
1629 timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
1630 timeout*HZ);
1631 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
1632 retval = FAILED;
1633 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
1634 "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf));
1635 mpt_clear_taskmgmt_in_progress_flag(ioc);
1636 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
1637 goto out;
1638 issue_hard_reset = 1;
1639 goto out;
1640 }
1641
1642 retval = mptscsih_taskmgmt_reply(ioc, type,
1643 (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply);
1644
1645 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1646 "TaskMgmt completed (%d seconds)\n",
1647 ioc->name, jiffies_to_msecs(jiffies - time_count)/1000));
1648
1649 out:
1650
1651 CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1652 if (issue_hard_reset) {
1653 printk(MYIOC_s_WARN_FMT
1654 "Issuing Reset from %s!! doorbell=0x%08x\n",
1655 ioc->name, __func__, mpt_GetIocState(ioc, 0));
1656 retval = (ioc->bus_type == SAS) ?
1657 mpt_HardResetHandler(ioc, CAN_SLEEP) :
1658 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1659 mpt_free_msg_frame(ioc, mf);
1660 }
1661
1662 retval = (retval == 0) ? 0 : FAILED;
1663 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
1664 return retval;
1665 }
1666 EXPORT_SYMBOL(mptscsih_IssueTaskMgmt);
1667
1668 static int
1669 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1670 {
1671 switch (ioc->bus_type) {
1672 case FC:
1673 return 40;
1674 case SAS:
1675 return 30;
1676 case SPI:
1677 default:
1678 return 10;
1679 }
1680 }
1681
1682 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1683 /**
1684 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1685 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1686 *
1687 * (linux scsi_host_template.eh_abort_handler routine)
1688 *
1689 * Returns SUCCESS or FAILED.
1690 **/
1691 int
1692 mptscsih_abort(struct scsi_cmnd * SCpnt)
1693 {
1694 MPT_SCSI_HOST *hd;
1695 MPT_FRAME_HDR *mf;
1696 u32 ctx2abort;
1697 int scpnt_idx;
1698 int retval;
1699 VirtDevice *vdevice;
1700 MPT_ADAPTER *ioc;
1701
1702 /* If we can't locate our host adapter structure, return FAILED status.
1703 */
1704 if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1705 SCpnt->result = DID_RESET << 16;
1706 SCpnt->scsi_done(SCpnt);
1707 printk(KERN_ERR MYNAM ": task abort: "
1708 "can't locate host! (sc=%p)\n", SCpnt);
1709 return FAILED;
1710 }
1711
1712 ioc = hd->ioc;
1713 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1714 ioc->name, SCpnt);
1715 scsi_print_command(SCpnt);
1716
1717 vdevice = SCpnt->device->hostdata;
1718 if (!vdevice || !vdevice->vtarget) {
1719 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1720 "task abort: device has been deleted (sc=%p)\n",
1721 ioc->name, SCpnt));
1722 SCpnt->result = DID_NO_CONNECT << 16;
1723 SCpnt->scsi_done(SCpnt);
1724 retval = SUCCESS;
1725 goto out;
1726 }
1727
1728 /* Task aborts are not supported for hidden raid components.
1729 */
1730 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1731 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1732 "task abort: hidden raid component (sc=%p)\n",
1733 ioc->name, SCpnt));
1734 SCpnt->result = DID_RESET << 16;
1735 retval = FAILED;
1736 goto out;
1737 }
1738
1739 /* Task aborts are not supported for volumes.
1740 */
1741 if (vdevice->vtarget->raidVolume) {
1742 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1743 "task abort: raid volume (sc=%p)\n",
1744 ioc->name, SCpnt));
1745 SCpnt->result = DID_RESET << 16;
1746 retval = FAILED;
1747 goto out;
1748 }
1749
1750 /* Find this command
1751 */
1752 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1753 /* Cmd not found in ScsiLookup.
1754 * Do OS callback.
1755 */
1756 SCpnt->result = DID_RESET << 16;
1757 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1758 "Command not in the active list! (sc=%p)\n", ioc->name,
1759 SCpnt));
1760 retval = SUCCESS;
1761 goto out;
1762 }
1763
1764 if (ioc->timeouts < -1)
1765 ioc->timeouts++;
1766
1767 if (mpt_fwfault_debug)
1768 mpt_halt_firmware(ioc);
1769
1770 /* Most important! Set TaskMsgContext to SCpnt's MsgContext!
1771 * (the IO to be ABORT'd)
1772 *
1773 * NOTE: Since we do not byteswap MsgContext, we do not
1774 * swap it here either. It is an opaque cookie to
1775 * the controller, so it does not matter. -DaveM
1776 */
1777 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1778 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1779 retval = mptscsih_IssueTaskMgmt(hd,
1780 MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1781 vdevice->vtarget->channel,
1782 vdevice->vtarget->id, vdevice->lun,
1783 ctx2abort, mptscsih_get_tm_timeout(ioc));
1784
1785 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) {
1786 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1787 "task abort: command still in active list! (sc=%p)\n",
1788 ioc->name, SCpnt));
1789 retval = FAILED;
1790 } else {
1791 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1792 "task abort: command cleared from active list! (sc=%p)\n",
1793 ioc->name, SCpnt));
1794 retval = SUCCESS;
1795 }
1796
1797 out:
1798 printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n",
1799 ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval,
1800 SCpnt);
1801
1802 return retval;
1803 }
1804
1805 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1806 /**
1807 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant
1808 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1809 *
1810 * (linux scsi_host_template.eh_dev_reset_handler routine)
1811 *
1812 * Returns SUCCESS or FAILED.
1813 **/
1814 int
1815 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1816 {
1817 MPT_SCSI_HOST *hd;
1818 int retval;
1819 VirtDevice *vdevice;
1820 MPT_ADAPTER *ioc;
1821
1822 /* If we can't locate our host adapter structure, return FAILED status.
1823 */
1824 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1825 printk(KERN_ERR MYNAM ": target reset: "
1826 "Can't locate host! (sc=%p)\n", SCpnt);
1827 return FAILED;
1828 }
1829
1830 ioc = hd->ioc;
1831 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1832 ioc->name, SCpnt);
1833 scsi_print_command(SCpnt);
1834
1835 vdevice = SCpnt->device->hostdata;
1836 if (!vdevice || !vdevice->vtarget) {
1837 retval = 0;
1838 goto out;
1839 }
1840
1841 /* Target reset to hidden raid component is not supported
1842 */
1843 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1844 retval = FAILED;
1845 goto out;
1846 }
1847
1848 retval = mptscsih_IssueTaskMgmt(hd,
1849 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1850 vdevice->vtarget->channel,
1851 vdevice->vtarget->id, 0, 0,
1852 mptscsih_get_tm_timeout(ioc));
1853
1854 out:
1855 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1856 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1857
1858 if (retval == 0)
1859 return SUCCESS;
1860 else
1861 return FAILED;
1862 }
1863
1864
1865 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1866 /**
1867 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant
1868 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1869 *
1870 * (linux scsi_host_template.eh_bus_reset_handler routine)
1871 *
1872 * Returns SUCCESS or FAILED.
1873 **/
1874 int
1875 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1876 {
1877 MPT_SCSI_HOST *hd;
1878 int retval;
1879 VirtDevice *vdevice;
1880 MPT_ADAPTER *ioc;
1881
1882 /* If we can't locate our host adapter structure, return FAILED status.
1883 */
1884 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1885 printk(KERN_ERR MYNAM ": bus reset: "
1886 "Can't locate host! (sc=%p)\n", SCpnt);
1887 return FAILED;
1888 }
1889
1890 ioc = hd->ioc;
1891 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1892 ioc->name, SCpnt);
1893 scsi_print_command(SCpnt);
1894
1895 if (ioc->timeouts < -1)
1896 ioc->timeouts++;
1897
1898 vdevice = SCpnt->device->hostdata;
1899 if (!vdevice || !vdevice->vtarget)
1900 return SUCCESS;
1901 retval = mptscsih_IssueTaskMgmt(hd,
1902 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1903 vdevice->vtarget->channel, 0, 0, 0,
1904 mptscsih_get_tm_timeout(ioc));
1905
1906 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1907 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1908
1909 if (retval == 0)
1910 return SUCCESS;
1911 else
1912 return FAILED;
1913 }
1914
1915 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1916 /**
1917 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1918 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1919 *
1920 * (linux scsi_host_template.eh_host_reset_handler routine)
1921 *
1922 * Returns SUCCESS or FAILED.
1923 */
1924 int
1925 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1926 {
1927 MPT_SCSI_HOST * hd;
1928 int status = SUCCESS;
1929 MPT_ADAPTER *ioc;
1930 int retval;
1931
1932 /* If we can't locate the host to reset, then we failed. */
1933 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1934 printk(KERN_ERR MYNAM ": host reset: "
1935 "Can't locate host! (sc=%p)\n", SCpnt);
1936 return FAILED;
1937 }
1938
1939 /* make sure we have no outstanding commands at this stage */
1940 mptscsih_flush_running_cmds(hd);
1941
1942 ioc = hd->ioc;
1943 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
1944 ioc->name, SCpnt);
1945
1946 /* If our attempts to reset the host failed, then return a failed
1947 * status. The host will be taken off line by the SCSI mid-layer.
1948 */
1949 retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1950 if (retval < 0)
1951 status = FAILED;
1952 else
1953 status = SUCCESS;
1954
1955 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
1956 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1957
1958 return status;
1959 }
1960
1961 static int
1962 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
1963 SCSITaskMgmtReply_t *pScsiTmReply)
1964 {
1965 u16 iocstatus;
1966 u32 termination_count;
1967 int retval;
1968
1969 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
1970 retval = FAILED;
1971 goto out;
1972 }
1973
1974 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
1975
1976 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
1977 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
1978
1979 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1980 "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n"
1981 "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n"
1982 "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus,
1983 pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus),
1984 le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode,
1985 termination_count));
1986
1987 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
1988 pScsiTmReply->ResponseCode)
1989 mptscsih_taskmgmt_response_code(ioc,
1990 pScsiTmReply->ResponseCode);
1991
1992 if (iocstatus == MPI_IOCSTATUS_SUCCESS) {
1993 retval = 0;
1994 goto out;
1995 }
1996
1997 retval = FAILED;
1998 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1999 if (termination_count == 1)
2000 retval = 0;
2001 goto out;
2002 }
2003
2004 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
2005 iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
2006 retval = 0;
2007
2008 out:
2009 return retval;
2010 }
2011
2012 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2013 void
2014 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2015 {
2016 char *desc;
2017
2018 switch (response_code) {
2019 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2020 desc = "The task completed.";
2021 break;
2022 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2023 desc = "The IOC received an invalid frame status.";
2024 break;
2025 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2026 desc = "The task type is not supported.";
2027 break;
2028 case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2029 desc = "The requested task failed.";
2030 break;
2031 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2032 desc = "The task completed successfully.";
2033 break;
2034 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2035 desc = "The LUN request is invalid.";
2036 break;
2037 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2038 desc = "The task is in the IOC queue and has not been sent to target.";
2039 break;
2040 default:
2041 desc = "unknown";
2042 break;
2043 }
2044 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2045 ioc->name, response_code, desc);
2046 }
2047 EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
2048
2049 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2050 /**
2051 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2052 * @ioc: Pointer to MPT_ADAPTER structure
2053 * @mf: Pointer to SCSI task mgmt request frame
2054 * @mr: Pointer to SCSI task mgmt reply frame
2055 *
2056 * This routine is called from mptbase.c::mpt_interrupt() at the completion
2057 * of any SCSI task management request.
2058 * This routine is registered with the MPT (base) driver at driver
2059 * load/init time via the mpt_register() API call.
2060 *
2061 * Returns 1 indicating alloc'd request frame ptr should be freed.
2062 **/
2063 int
2064 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf,
2065 MPT_FRAME_HDR *mr)
2066 {
2067 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2068 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr));
2069
2070 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2071
2072 if (!mr)
2073 goto out;
2074
2075 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2076 memcpy(ioc->taskmgmt_cmds.reply, mr,
2077 min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
2078 out:
2079 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
2080 mpt_clear_taskmgmt_in_progress_flag(ioc);
2081 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2082 complete(&ioc->taskmgmt_cmds.done);
2083 if (ioc->bus_type == SAS)
2084 ioc->schedule_target_reset(ioc);
2085 return 1;
2086 }
2087 return 0;
2088 }
2089
2090 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2091 /*
2092 * This is anyones guess quite frankly.
2093 */
2094 int
2095 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2096 sector_t capacity, int geom[])
2097 {
2098 int heads;
2099 int sectors;
2100 sector_t cylinders;
2101 ulong dummy;
2102
2103 heads = 64;
2104 sectors = 32;
2105
2106 dummy = heads * sectors;
2107 cylinders = capacity;
2108 sector_div(cylinders,dummy);
2109
2110 /*
2111 * Handle extended translation size for logical drives
2112 * > 1Gb
2113 */
2114 if ((ulong)capacity >= 0x200000) {
2115 heads = 255;
2116 sectors = 63;
2117 dummy = heads * sectors;
2118 cylinders = capacity;
2119 sector_div(cylinders,dummy);
2120 }
2121
2122 /* return result */
2123 geom[0] = heads;
2124 geom[1] = sectors;
2125 geom[2] = cylinders;
2126
2127 return 0;
2128 }
2129
2130 /* Search IOC page 3 to determine if this is hidden physical disk
2131 *
2132 */
2133 int
2134 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2135 {
2136 struct inactive_raid_component_info *component_info;
2137 int i, j;
2138 RaidPhysDiskPage1_t *phys_disk;
2139 int rc = 0;
2140 int num_paths;
2141
2142 if (!ioc->raid_data.pIocPg3)
2143 goto out;
2144 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2145 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2146 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2147 rc = 1;
2148 goto out;
2149 }
2150 }
2151
2152 if (ioc->bus_type != SAS)
2153 goto out;
2154
2155 /*
2156 * Check if dual path
2157 */
2158 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2159 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2160 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2161 if (num_paths < 2)
2162 continue;
2163 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2164 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2165 if (!phys_disk)
2166 continue;
2167 if ((mpt_raid_phys_disk_pg1(ioc,
2168 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2169 phys_disk))) {
2170 kfree(phys_disk);
2171 continue;
2172 }
2173 for (j = 0; j < num_paths; j++) {
2174 if ((phys_disk->Path[j].Flags &
2175 MPI_RAID_PHYSDISK1_FLAG_INVALID))
2176 continue;
2177 if ((phys_disk->Path[j].Flags &
2178 MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2179 continue;
2180 if ((id == phys_disk->Path[j].PhysDiskID) &&
2181 (channel == phys_disk->Path[j].PhysDiskBus)) {
2182 rc = 1;
2183 kfree(phys_disk);
2184 goto out;
2185 }
2186 }
2187 kfree(phys_disk);
2188 }
2189
2190
2191 /*
2192 * Check inactive list for matching phys disks
2193 */
2194 if (list_empty(&ioc->raid_data.inactive_list))
2195 goto out;
2196
2197 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2198 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2199 list) {
2200 if ((component_info->d.PhysDiskID == id) &&
2201 (component_info->d.PhysDiskBus == channel))
2202 rc = 1;
2203 }
2204 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2205
2206 out:
2207 return rc;
2208 }
2209 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2210
2211 u8
2212 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2213 {
2214 struct inactive_raid_component_info *component_info;
2215 int i, j;
2216 RaidPhysDiskPage1_t *phys_disk;
2217 int rc = -ENXIO;
2218 int num_paths;
2219
2220 if (!ioc->raid_data.pIocPg3)
2221 goto out;
2222 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2223 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2224 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2225 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2226 goto out;
2227 }
2228 }
2229
2230 if (ioc->bus_type != SAS)
2231 goto out;
2232
2233 /*
2234 * Check if dual path
2235 */
2236 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2237 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2238 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2239 if (num_paths < 2)
2240 continue;
2241 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2242 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2243 if (!phys_disk)
2244 continue;
2245 if ((mpt_raid_phys_disk_pg1(ioc,
2246 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2247 phys_disk))) {
2248 kfree(phys_disk);
2249 continue;
2250 }
2251 for (j = 0; j < num_paths; j++) {
2252 if ((phys_disk->Path[j].Flags &
2253 MPI_RAID_PHYSDISK1_FLAG_INVALID))
2254 continue;
2255 if ((phys_disk->Path[j].Flags &
2256 MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2257 continue;
2258 if ((id == phys_disk->Path[j].PhysDiskID) &&
2259 (channel == phys_disk->Path[j].PhysDiskBus)) {
2260 rc = phys_disk->PhysDiskNum;
2261 kfree(phys_disk);
2262 goto out;
2263 }
2264 }
2265 kfree(phys_disk);
2266 }
2267
2268 /*
2269 * Check inactive list for matching phys disks
2270 */
2271 if (list_empty(&ioc->raid_data.inactive_list))
2272 goto out;
2273
2274 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2275 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2276 list) {
2277 if ((component_info->d.PhysDiskID == id) &&
2278 (component_info->d.PhysDiskBus == channel))
2279 rc = component_info->d.PhysDiskNum;
2280 }
2281 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2282
2283 out:
2284 return rc;
2285 }
2286 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2287
2288 /*
2289 * OS entry point to allow for host driver to free allocated memory
2290 * Called if no device present or device being unloaded
2291 */
2292 void
2293 mptscsih_slave_destroy(struct scsi_device *sdev)
2294 {
2295 struct Scsi_Host *host = sdev->host;
2296 MPT_SCSI_HOST *hd = shost_priv(host);
2297 VirtTarget *vtarget;
2298 VirtDevice *vdevice;
2299 struct scsi_target *starget;
2300
2301 starget = scsi_target(sdev);
2302 vtarget = starget->hostdata;
2303 vdevice = sdev->hostdata;
2304 if (!vdevice)
2305 return;
2306
2307 mptscsih_search_running_cmds(hd, vdevice);
2308 vtarget->num_luns--;
2309 mptscsih_synchronize_cache(hd, vdevice);
2310 kfree(vdevice);
2311 sdev->hostdata = NULL;
2312 }
2313
2314 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2315 /*
2316 * mptscsih_change_queue_depth - This function will set a devices queue depth
2317 * @sdev: per scsi_device pointer
2318 * @qdepth: requested queue depth
2319 * @reason: calling context
2320 *
2321 * Adding support for new 'change_queue_depth' api.
2322 */
2323 int
2324 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
2325 {
2326 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
2327 VirtTarget *vtarget;
2328 struct scsi_target *starget;
2329 int max_depth;
2330 int tagged;
2331 MPT_ADAPTER *ioc = hd->ioc;
2332
2333 starget = scsi_target(sdev);
2334 vtarget = starget->hostdata;
2335
2336 if (reason != SCSI_QDEPTH_DEFAULT)
2337 return -EOPNOTSUPP;
2338
2339 if (ioc->bus_type == SPI) {
2340 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2341 max_depth = 1;
2342 else if (sdev->type == TYPE_DISK &&
2343 vtarget->minSyncFactor <= MPT_ULTRA160)
2344 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2345 else
2346 max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2347 } else
2348 max_depth = ioc->sh->can_queue;
2349
2350 if (!sdev->tagged_supported)
2351 max_depth = 1;
2352
2353 if (qdepth > max_depth)
2354 qdepth = max_depth;
2355 if (qdepth == 1)
2356 tagged = 0;
2357 else
2358 tagged = MSG_SIMPLE_TAG;
2359
2360 scsi_adjust_queue_depth(sdev, tagged, qdepth);
2361 return sdev->queue_depth;
2362 }
2363
2364 /*
2365 * OS entry point to adjust the queue_depths on a per-device basis.
2366 * Called once per device the bus scan. Use it to force the queue_depth
2367 * member to 1 if a device does not support Q tags.
2368 * Return non-zero if fails.
2369 */
2370 int
2371 mptscsih_slave_configure(struct scsi_device *sdev)
2372 {
2373 struct Scsi_Host *sh = sdev->host;
2374 VirtTarget *vtarget;
2375 VirtDevice *vdevice;
2376 struct scsi_target *starget;
2377 MPT_SCSI_HOST *hd = shost_priv(sh);
2378 MPT_ADAPTER *ioc = hd->ioc;
2379
2380 starget = scsi_target(sdev);
2381 vtarget = starget->hostdata;
2382 vdevice = sdev->hostdata;
2383
2384 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2385 "device @ %p, channel=%d, id=%d, lun=%d\n",
2386 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2387 if (ioc->bus_type == SPI)
2388 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2389 "sdtr %d wdtr %d ppr %d inq length=%d\n",
2390 ioc->name, sdev->sdtr, sdev->wdtr,
2391 sdev->ppr, sdev->inquiry_len));
2392
2393 vdevice->configured_lun = 1;
2394
2395 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2396 "Queue depth=%d, tflags=%x\n",
2397 ioc->name, sdev->queue_depth, vtarget->tflags));
2398
2399 if (ioc->bus_type == SPI)
2400 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2401 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2402 ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2403 vtarget->minSyncFactor));
2404
2405 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH,
2406 SCSI_QDEPTH_DEFAULT);
2407 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2408 "tagged %d, simple %d, ordered %d\n",
2409 ioc->name,sdev->tagged_supported, sdev->simple_tags,
2410 sdev->ordered_tags));
2411
2412 blk_queue_dma_alignment (sdev->request_queue, 512 - 1);
2413
2414 return 0;
2415 }
2416
2417 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2418 /*
2419 * Private routines...
2420 */
2421
2422 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2423 /* Utility function to copy sense data from the scsi_cmnd buffer
2424 * to the FC and SCSI target structures.
2425 *
2426 */
2427 static void
2428 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2429 {
2430 VirtDevice *vdevice;
2431 SCSIIORequest_t *pReq;
2432 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount);
2433 MPT_ADAPTER *ioc = hd->ioc;
2434
2435 /* Get target structure
2436 */
2437 pReq = (SCSIIORequest_t *) mf;
2438 vdevice = sc->device->hostdata;
2439
2440 if (sense_count) {
2441 u8 *sense_data;
2442 int req_index;
2443
2444 /* Copy the sense received into the scsi command block. */
2445 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2446 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2447 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2448
2449 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2450 */
2451 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2452 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2453 int idx;
2454
2455 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2456 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2457 ioc->events[idx].eventContext = ioc->eventContext;
2458
2459 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2460 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2461 (sc->device->channel << 8) | sc->device->id;
2462
2463 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2464
2465 ioc->eventContext++;
2466 if (ioc->pcidev->vendor ==
2467 PCI_VENDOR_ID_IBM) {
2468 mptscsih_issue_sep_command(ioc,
2469 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2470 vdevice->vtarget->tflags |=
2471 MPT_TARGET_FLAGS_LED_ON;
2472 }
2473 }
2474 }
2475 } else {
2476 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2477 ioc->name));
2478 }
2479 }
2480
2481 /**
2482 * mptscsih_get_scsi_lookup - retrieves scmd entry
2483 * @ioc: Pointer to MPT_ADAPTER structure
2484 * @i: index into the array
2485 *
2486 * Returns the scsi_cmd pointer
2487 */
2488 struct scsi_cmnd *
2489 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2490 {
2491 unsigned long flags;
2492 struct scsi_cmnd *scmd;
2493
2494 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2495 scmd = ioc->ScsiLookup[i];
2496 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2497
2498 return scmd;
2499 }
2500 EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
2501
2502 /**
2503 * mptscsih_getclear_scsi_lookup - retrieves and clears scmd entry from ScsiLookup[] array list
2504 * @ioc: Pointer to MPT_ADAPTER structure
2505 * @i: index into the array
2506 *
2507 * Returns the scsi_cmd pointer
2508 *
2509 **/
2510 static struct scsi_cmnd *
2511 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2512 {
2513 unsigned long flags;
2514 struct scsi_cmnd *scmd;
2515
2516 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2517 scmd = ioc->ScsiLookup[i];
2518 ioc->ScsiLookup[i] = NULL;
2519 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2520
2521 return scmd;
2522 }
2523
2524 /**
2525 * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list
2526 *
2527 * @ioc: Pointer to MPT_ADAPTER structure
2528 * @i: index into the array
2529 * @scmd: scsi_cmnd pointer
2530 *
2531 **/
2532 static void
2533 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2534 {
2535 unsigned long flags;
2536
2537 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2538 ioc->ScsiLookup[i] = scmd;
2539 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2540 }
2541
2542 /**
2543 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2544 * @ioc: Pointer to MPT_ADAPTER structure
2545 * @sc: scsi_cmnd pointer
2546 */
2547 static int
2548 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2549 {
2550 unsigned long flags;
2551 int i, index=-1;
2552
2553 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2554 for (i = 0; i < ioc->req_depth; i++) {
2555 if (ioc->ScsiLookup[i] == sc) {
2556 index = i;
2557 goto out;
2558 }
2559 }
2560
2561 out:
2562 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2563 return index;
2564 }
2565
2566 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2567 int
2568 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2569 {
2570 MPT_SCSI_HOST *hd;
2571
2572 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2573 return 0;
2574
2575 hd = shost_priv(ioc->sh);
2576 switch (reset_phase) {
2577 case MPT_IOC_SETUP_RESET:
2578 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2579 "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
2580 break;
2581 case MPT_IOC_PRE_RESET:
2582 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2583 "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
2584 mptscsih_flush_running_cmds(hd);
2585 break;
2586 case MPT_IOC_POST_RESET:
2587 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2588 "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
2589 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) {
2590 ioc->internal_cmds.status |=
2591 MPT_MGMT_STATUS_DID_IOCRESET;
2592 complete(&ioc->internal_cmds.done);
2593 }
2594 break;
2595 default:
2596 break;
2597 }
2598 return 1; /* currently means nothing really */
2599 }
2600
2601 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2602 int
2603 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2604 {
2605 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2606
2607 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2608 "MPT event (=%02Xh) routed to SCSI host driver!\n",
2609 ioc->name, event));
2610
2611 if ((event == MPI_EVENT_IOC_BUS_RESET ||
2612 event == MPI_EVENT_EXT_BUS_RESET) &&
2613 (ioc->bus_type == SPI) && (ioc->soft_resets < -1))
2614 ioc->soft_resets++;
2615
2616 return 1; /* currently means nothing really */
2617 }
2618
2619 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2620 /*
2621 * Bus Scan and Domain Validation functionality ...
2622 */
2623
2624 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2625 /*
2626 * mptscsih_scandv_complete - Scan and DV callback routine registered
2627 * to Fustion MPT (base) driver.
2628 *
2629 * @ioc: Pointer to MPT_ADAPTER structure
2630 * @mf: Pointer to original MPT request frame
2631 * @mr: Pointer to MPT reply frame (NULL if TurboReply)
2632 *
2633 * This routine is called from mpt.c::mpt_interrupt() at the completion
2634 * of any SCSI IO request.
2635 * This routine is registered with the Fusion MPT (base) driver at driver
2636 * load/init time via the mpt_register() API call.
2637 *
2638 * Returns 1 indicating alloc'd request frame ptr should be freed.
2639 *
2640 * Remark: Sets a completion code and (possibly) saves sense data
2641 * in the IOC member localReply structure.
2642 * Used ONLY for DV and other internal commands.
2643 */
2644 int
2645 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2646 MPT_FRAME_HDR *reply)
2647 {
2648 SCSIIORequest_t *pReq;
2649 SCSIIOReply_t *pReply;
2650 u8 cmd;
2651 u16 req_idx;
2652 u8 *sense_data;
2653 int sz;
2654
2655 ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2656 ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD;
2657 if (!reply)
2658 goto out;
2659
2660 pReply = (SCSIIOReply_t *) reply;
2661 pReq = (SCSIIORequest_t *) req;
2662 ioc->internal_cmds.completion_code =
2663 mptscsih_get_completion_code(ioc, req, reply);
2664 ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2665 memcpy(ioc->internal_cmds.reply, reply,
2666 min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength));
2667 cmd = reply->u.hdr.Function;
2668 if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
2669 (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) &&
2670 (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
2671 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
2672 sense_data = ((u8 *)ioc->sense_buf_pool +
2673 (req_idx * MPT_SENSE_BUFFER_ALLOC));
2674 sz = min_t(int, pReq->SenseBufferLength,
2675 MPT_SENSE_BUFFER_ALLOC);
2676 memcpy(ioc->internal_cmds.sense, sense_data, sz);
2677 }
2678 out:
2679 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING))
2680 return 0;
2681 ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2682 complete(&ioc->internal_cmds.done);
2683 return 1;
2684 }
2685
2686
2687 /**
2688 * mptscsih_get_completion_code - get completion code from MPT request
2689 * @ioc: Pointer to MPT_ADAPTER structure
2690 * @req: Pointer to original MPT request frame
2691 * @reply: Pointer to MPT reply frame (NULL if TurboReply)
2692 *
2693 **/
2694 static int
2695 mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2696 MPT_FRAME_HDR *reply)
2697 {
2698 SCSIIOReply_t *pReply;
2699 MpiRaidActionReply_t *pr;
2700 u8 scsi_status;
2701 u16 status;
2702 int completion_code;
2703
2704 pReply = (SCSIIOReply_t *)reply;
2705 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2706 scsi_status = pReply->SCSIStatus;
2707
2708 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2709 "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh,"
2710 "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState,
2711 scsi_status, le32_to_cpu(pReply->IOCLogInfo)));
2712
2713 switch (status) {
2714
2715 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
2716 completion_code = MPT_SCANDV_SELECTION_TIMEOUT;
2717 break;
2718
2719 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
2720 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
2721 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
2722 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
2723 completion_code = MPT_SCANDV_DID_RESET;
2724 break;
2725
2726 case MPI_IOCSTATUS_BUSY:
2727 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
2728 completion_code = MPT_SCANDV_BUSY;
2729 break;
2730
2731 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
2732 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
2733 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
2734 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2735 completion_code = MPT_SCANDV_GOOD;
2736 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2737 pr = (MpiRaidActionReply_t *)reply;
2738 if (le16_to_cpu(pr->ActionStatus) ==
2739 MPI_RAID_ACTION_ASTATUS_SUCCESS)
2740 completion_code = MPT_SCANDV_GOOD;
2741 else
2742 completion_code = MPT_SCANDV_SOME_ERROR;
2743 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)
2744 completion_code = MPT_SCANDV_SENSE;
2745 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2746 if (req->u.scsireq.CDB[0] == INQUIRY)
2747 completion_code = MPT_SCANDV_ISSUE_SENSE;
2748 else
2749 completion_code = MPT_SCANDV_DID_RESET;
2750 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2751 completion_code = MPT_SCANDV_DID_RESET;
2752 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2753 completion_code = MPT_SCANDV_DID_RESET;
2754 else if (scsi_status == MPI_SCSI_STATUS_BUSY)
2755 completion_code = MPT_SCANDV_BUSY;
2756 else
2757 completion_code = MPT_SCANDV_GOOD;
2758 break;
2759
2760 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
2761 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2762 completion_code = MPT_SCANDV_DID_RESET;
2763 else
2764 completion_code = MPT_SCANDV_SOME_ERROR;
2765 break;
2766 default:
2767 completion_code = MPT_SCANDV_SOME_ERROR;
2768 break;
2769
2770 } /* switch(status) */
2771
2772 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2773 " completionCode set to %08xh\n", ioc->name, completion_code));
2774 return completion_code;
2775 }
2776
2777 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2778 /**
2779 * mptscsih_do_cmd - Do internal command.
2780 * @hd: MPT_SCSI_HOST pointer
2781 * @io: INTERNAL_CMD pointer.
2782 *
2783 * Issue the specified internally generated command and do command
2784 * specific cleanup. For bus scan / DV only.
2785 * NOTES: If command is Inquiry and status is good,
2786 * initialize a target structure, save the data
2787 *
2788 * Remark: Single threaded access only.
2789 *
2790 * Return:
2791 * < 0 if an illegal command or no resources
2792 *
2793 * 0 if good
2794 *
2795 * > 0 if command complete but some type of completion error.
2796 */
2797 static int
2798 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2799 {
2800 MPT_FRAME_HDR *mf;
2801 SCSIIORequest_t *pScsiReq;
2802 int my_idx, ii, dir;
2803 int timeout;
2804 char cmdLen;
2805 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2806 u8 cmd = io->cmd;
2807 MPT_ADAPTER *ioc = hd->ioc;
2808 int ret = 0;
2809 unsigned long timeleft;
2810 unsigned long flags;
2811
2812 /* don't send internal command during diag reset */
2813 spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
2814 if (ioc->ioc_reset_in_progress) {
2815 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2816 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2817 "%s: busy with host reset\n", ioc->name, __func__));
2818 return MPT_SCANDV_BUSY;
2819 }
2820 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2821
2822 mutex_lock(&ioc->internal_cmds.mutex);
2823
2824 /* Set command specific information
2825 */
2826 switch (cmd) {
2827 case INQUIRY:
2828 cmdLen = 6;
2829 dir = MPI_SCSIIO_CONTROL_READ;
2830 CDB[0] = cmd;
2831 CDB[4] = io->size;
2832 timeout = 10;
2833 break;
2834
2835 case TEST_UNIT_READY:
2836 cmdLen = 6;
2837 dir = MPI_SCSIIO_CONTROL_READ;
2838 timeout = 10;
2839 break;
2840
2841 case START_STOP:
2842 cmdLen = 6;
2843 dir = MPI_SCSIIO_CONTROL_READ;
2844 CDB[0] = cmd;
2845 CDB[4] = 1; /*Spin up the disk */
2846 timeout = 15;
2847 break;
2848
2849 case REQUEST_SENSE:
2850 cmdLen = 6;
2851 CDB[0] = cmd;
2852 CDB[4] = io->size;
2853 dir = MPI_SCSIIO_CONTROL_READ;
2854 timeout = 10;
2855 break;
2856
2857 case READ_BUFFER:
2858 cmdLen = 10;
2859 dir = MPI_SCSIIO_CONTROL_READ;
2860 CDB[0] = cmd;
2861 if (io->flags & MPT_ICFLAG_ECHO) {
2862 CDB[1] = 0x0A;
2863 } else {
2864 CDB[1] = 0x02;
2865 }
2866
2867 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2868 CDB[1] |= 0x01;
2869 }
2870 CDB[6] = (io->size >> 16) & 0xFF;
2871 CDB[7] = (io->size >> 8) & 0xFF;
2872 CDB[8] = io->size & 0xFF;
2873 timeout = 10;
2874 break;
2875
2876 case WRITE_BUFFER:
2877 cmdLen = 10;
2878 dir = MPI_SCSIIO_CONTROL_WRITE;
2879 CDB[0] = cmd;
2880 if (io->flags & MPT_ICFLAG_ECHO) {
2881 CDB[1] = 0x0A;
2882 } else {
2883 CDB[1] = 0x02;
2884 }
2885 CDB[6] = (io->size >> 16) & 0xFF;
2886 CDB[7] = (io->size >> 8) & 0xFF;
2887 CDB[8] = io->size & 0xFF;
2888 timeout = 10;
2889 break;
2890
2891 case RESERVE:
2892 cmdLen = 6;
2893 dir = MPI_SCSIIO_CONTROL_READ;
2894 CDB[0] = cmd;
2895 timeout = 10;
2896 break;
2897
2898 case RELEASE:
2899 cmdLen = 6;
2900 dir = MPI_SCSIIO_CONTROL_READ;
2901 CDB[0] = cmd;
2902 timeout = 10;
2903 break;
2904
2905 case SYNCHRONIZE_CACHE:
2906 cmdLen = 10;
2907 dir = MPI_SCSIIO_CONTROL_READ;
2908 CDB[0] = cmd;
2909 // CDB[1] = 0x02; /* set immediate bit */
2910 timeout = 10;
2911 break;
2912
2913 default:
2914 /* Error Case */
2915 ret = -EFAULT;
2916 goto out;
2917 }
2918
2919 /* Get and Populate a free Frame
2920 * MsgContext set in mpt_get_msg_frame call
2921 */
2922 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
2923 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n",
2924 ioc->name, __func__));
2925 ret = MPT_SCANDV_BUSY;
2926 goto out;
2927 }
2928
2929 pScsiReq = (SCSIIORequest_t *) mf;
2930
2931 /* Get the request index */
2932 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2933 ADD_INDEX_LOG(my_idx); /* for debug */
2934
2935 if (io->flags & MPT_ICFLAG_PHYS_DISK) {
2936 pScsiReq->TargetID = io->physDiskNum;
2937 pScsiReq->Bus = 0;
2938 pScsiReq->ChainOffset = 0;
2939 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2940 } else {
2941 pScsiReq->TargetID = io->id;
2942 pScsiReq->Bus = io->channel;
2943 pScsiReq->ChainOffset = 0;
2944 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2945 }
2946
2947 pScsiReq->CDBLength = cmdLen;
2948 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
2949
2950 pScsiReq->Reserved = 0;
2951
2952 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
2953 /* MsgContext set in mpt_get_msg_fram call */
2954
2955 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
2956
2957 if (io->flags & MPT_ICFLAG_TAGGED_CMD)
2958 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
2959 else
2960 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2961
2962 if (cmd == REQUEST_SENSE) {
2963 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2964 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2965 "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd));
2966 }
2967
2968 for (ii = 0; ii < 16; ii++)
2969 pScsiReq->CDB[ii] = CDB[ii];
2970
2971 pScsiReq->DataLength = cpu_to_le32(io->size);
2972 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
2973 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
2974
2975 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2976 "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%d\n",
2977 ioc->name, __func__, cmd, io->channel, io->id, io->lun));
2978
2979 if (dir == MPI_SCSIIO_CONTROL_READ)
2980 ioc->add_sge((char *) &pScsiReq->SGL,
2981 MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma);
2982 else
2983 ioc->add_sge((char *) &pScsiReq->SGL,
2984 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma);
2985
2986 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
2987 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
2988 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done,
2989 timeout*HZ);
2990 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2991 ret = MPT_SCANDV_DID_RESET;
2992 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2993 "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__,
2994 cmd));
2995 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2996 mpt_free_msg_frame(ioc, mf);
2997 goto out;
2998 }
2999 if (!timeleft) {
3000 printk(MYIOC_s_WARN_FMT
3001 "Issuing Reset from %s!! doorbell=0x%08xh"
3002 " cmd=0x%02x\n",
3003 ioc->name, __func__, mpt_GetIocState(ioc, 0),
3004 cmd);
3005 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
3006 mpt_free_msg_frame(ioc, mf);
3007 }
3008 goto out;
3009 }
3010
3011 ret = ioc->internal_cmds.completion_code;
3012 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n",
3013 ioc->name, __func__, ret));
3014
3015 out:
3016 CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
3017 mutex_unlock(&ioc->internal_cmds.mutex);
3018 return ret;
3019 }
3020
3021 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3022 /**
3023 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3024 * @hd: Pointer to a SCSI HOST structure
3025 * @vdevice: virtual target device
3026 *
3027 * Uses the ISR, but with special processing.
3028 * MUST be single-threaded.
3029 *
3030 */
3031 static void
3032 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3033 {
3034 INTERNAL_CMD iocmd;
3035
3036 /* Ignore hidden raid components, this is handled when the command
3037 * is sent to the volume
3038 */
3039 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3040 return;
3041
3042 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3043 !vdevice->configured_lun)
3044 return;
3045
3046 /* Following parameters will not change
3047 * in this routine.
3048 */
3049 iocmd.cmd = SYNCHRONIZE_CACHE;
3050 iocmd.flags = 0;
3051 iocmd.physDiskNum = -1;
3052 iocmd.data = NULL;
3053 iocmd.data_dma = -1;
3054 iocmd.size = 0;
3055 iocmd.rsvd = iocmd.rsvd2 = 0;
3056 iocmd.channel = vdevice->vtarget->channel;
3057 iocmd.id = vdevice->vtarget->id;
3058 iocmd.lun = vdevice->lun;
3059
3060 mptscsih_do_cmd(hd, &iocmd);
3061 }
3062
3063 static ssize_t
3064 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3065 char *buf)
3066 {
3067 struct Scsi_Host *host = class_to_shost(dev);
3068 MPT_SCSI_HOST *hd = shost_priv(host);
3069 MPT_ADAPTER *ioc = hd->ioc;
3070
3071 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3072 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3073 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3074 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3075 ioc->facts.FWVersion.Word & 0x000000FF);
3076 }
3077 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3078
3079 static ssize_t
3080 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3081 char *buf)
3082 {
3083 struct Scsi_Host *host = class_to_shost(dev);
3084 MPT_SCSI_HOST *hd = shost_priv(host);
3085 MPT_ADAPTER *ioc = hd->ioc;
3086
3087 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3088 (ioc->biosVersion & 0xFF000000) >> 24,
3089 (ioc->biosVersion & 0x00FF0000) >> 16,
3090 (ioc->biosVersion & 0x0000FF00) >> 8,
3091 ioc->biosVersion & 0x000000FF);
3092 }
3093 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3094
3095 static ssize_t
3096 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3097 char *buf)
3098 {
3099 struct Scsi_Host *host = class_to_shost(dev);
3100 MPT_SCSI_HOST *hd = shost_priv(host);
3101 MPT_ADAPTER *ioc = hd->ioc;
3102
3103 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3104 }
3105 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3106
3107 static ssize_t
3108 mptscsih_version_product_show(struct device *dev,
3109 struct device_attribute *attr,
3110 char *buf)
3111 {
3112 struct Scsi_Host *host = class_to_shost(dev);
3113 MPT_SCSI_HOST *hd = shost_priv(host);
3114 MPT_ADAPTER *ioc = hd->ioc;
3115
3116 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3117 }
3118 static DEVICE_ATTR(version_product, S_IRUGO,
3119 mptscsih_version_product_show, NULL);
3120
3121 static ssize_t
3122 mptscsih_version_nvdata_persistent_show(struct device *dev,
3123 struct device_attribute *attr,
3124 char *buf)
3125 {
3126 struct Scsi_Host *host = class_to_shost(dev);
3127 MPT_SCSI_HOST *hd = shost_priv(host);
3128 MPT_ADAPTER *ioc = hd->ioc;
3129
3130 return snprintf(buf, PAGE_SIZE, "%02xh\n",
3131 ioc->nvdata_version_persistent);
3132 }
3133 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3134 mptscsih_version_nvdata_persistent_show, NULL);
3135
3136 static ssize_t
3137 mptscsih_version_nvdata_default_show(struct device *dev,
3138 struct device_attribute *attr, char *buf)
3139 {
3140 struct Scsi_Host *host = class_to_shost(dev);
3141 MPT_SCSI_HOST *hd = shost_priv(host);
3142 MPT_ADAPTER *ioc = hd->ioc;
3143
3144 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3145 }
3146 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3147 mptscsih_version_nvdata_default_show, NULL);
3148
3149 static ssize_t
3150 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3151 char *buf)
3152 {
3153 struct Scsi_Host *host = class_to_shost(dev);
3154 MPT_SCSI_HOST *hd = shost_priv(host);
3155 MPT_ADAPTER *ioc = hd->ioc;
3156
3157 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3158 }
3159 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3160
3161 static ssize_t
3162 mptscsih_board_assembly_show(struct device *dev,
3163 struct device_attribute *attr, char *buf)
3164 {
3165 struct Scsi_Host *host = class_to_shost(dev);
3166 MPT_SCSI_HOST *hd = shost_priv(host);
3167 MPT_ADAPTER *ioc = hd->ioc;
3168
3169 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3170 }
3171 static DEVICE_ATTR(board_assembly, S_IRUGO,
3172 mptscsih_board_assembly_show, NULL);
3173
3174 static ssize_t
3175 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3176 char *buf)
3177 {
3178 struct Scsi_Host *host = class_to_shost(dev);
3179 MPT_SCSI_HOST *hd = shost_priv(host);
3180 MPT_ADAPTER *ioc = hd->ioc;
3181
3182 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3183 }
3184 static DEVICE_ATTR(board_tracer, S_IRUGO,
3185 mptscsih_board_tracer_show, NULL);
3186
3187 static ssize_t
3188 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3189 char *buf)
3190 {
3191 struct Scsi_Host *host = class_to_shost(dev);
3192 MPT_SCSI_HOST *hd = shost_priv(host);
3193 MPT_ADAPTER *ioc = hd->ioc;
3194
3195 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3196 }
3197 static DEVICE_ATTR(io_delay, S_IRUGO,
3198 mptscsih_io_delay_show, NULL);
3199
3200 static ssize_t
3201 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3202 char *buf)
3203 {
3204 struct Scsi_Host *host = class_to_shost(dev);
3205 MPT_SCSI_HOST *hd = shost_priv(host);
3206 MPT_ADAPTER *ioc = hd->ioc;
3207
3208 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3209 }
3210 static DEVICE_ATTR(device_delay, S_IRUGO,
3211 mptscsih_device_delay_show, NULL);
3212
3213 static ssize_t
3214 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3215 char *buf)
3216 {
3217 struct Scsi_Host *host = class_to_shost(dev);
3218 MPT_SCSI_HOST *hd = shost_priv(host);
3219 MPT_ADAPTER *ioc = hd->ioc;
3220
3221 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3222 }
3223 static ssize_t
3224 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3225 const char *buf, size_t count)
3226 {
3227 struct Scsi_Host *host = class_to_shost(dev);
3228 MPT_SCSI_HOST *hd = shost_priv(host);
3229 MPT_ADAPTER *ioc = hd->ioc;
3230 int val = 0;
3231
3232 if (sscanf(buf, "%x", &val) != 1)
3233 return -EINVAL;
3234
3235 ioc->debug_level = val;
3236 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3237 ioc->name, ioc->debug_level);
3238 return strlen(buf);
3239 }
3240 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3241 mptscsih_debug_level_show, mptscsih_debug_level_store);
3242
3243 struct device_attribute *mptscsih_host_attrs[] = {
3244 &dev_attr_version_fw,
3245 &dev_attr_version_bios,
3246 &dev_attr_version_mpi,
3247 &dev_attr_version_product,
3248 &dev_attr_version_nvdata_persistent,
3249 &dev_attr_version_nvdata_default,
3250 &dev_attr_board_name,
3251 &dev_attr_board_assembly,
3252 &dev_attr_board_tracer,
3253 &dev_attr_io_delay,
3254 &dev_attr_device_delay,
3255 &dev_attr_debug_level,
3256 NULL,
3257 };
3258
3259 EXPORT_SYMBOL(mptscsih_host_attrs);
3260
3261 EXPORT_SYMBOL(mptscsih_remove);
3262 EXPORT_SYMBOL(mptscsih_shutdown);
3263 #ifdef CONFIG_PM
3264 EXPORT_SYMBOL(mptscsih_suspend);
3265 EXPORT_SYMBOL(mptscsih_resume);
3266 #endif
3267 EXPORT_SYMBOL(mptscsih_show_info);
3268 EXPORT_SYMBOL(mptscsih_info);
3269 EXPORT_SYMBOL(mptscsih_qcmd);
3270 EXPORT_SYMBOL(mptscsih_slave_destroy);
3271 EXPORT_SYMBOL(mptscsih_slave_configure);
3272 EXPORT_SYMBOL(mptscsih_abort);
3273 EXPORT_SYMBOL(mptscsih_dev_reset);
3274 EXPORT_SYMBOL(mptscsih_bus_reset);
3275 EXPORT_SYMBOL(mptscsih_host_reset);
3276 EXPORT_SYMBOL(mptscsih_bios_param);
3277 EXPORT_SYMBOL(mptscsih_io_done);
3278 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3279 EXPORT_SYMBOL(mptscsih_scandv_complete);
3280 EXPORT_SYMBOL(mptscsih_event_process);
3281 EXPORT_SYMBOL(mptscsih_ioc_reset);
3282 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3283
3284 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
Linus' kernel tree