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Merge branch 'for-3.9' of git://linux-nfs.org/~bfields/linux
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / message / fusion / mptscsih.c
1 /*
2 * linux/drivers/message/fusion/mptscsih.c
3 * For use with LSI PCI chip/adapter(s)
4 * running LSI Fusion MPT (Message Passing Technology) firmware.
5 *
6 * Copyright (c) 1999-2008 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
8 *
9 */
10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
11 /*
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; version 2 of the License.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 NO WARRANTY
22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
26 solely responsible for determining the appropriateness of using and
27 distributing the Program and assumes all risks associated with its
28 exercise of rights under this Agreement, including but not limited to
29 the risks and costs of program errors, damage to or loss of data,
30 programs or equipment, and unavailability or interruption of operations.
31
32 DISCLAIMER OF LIABILITY
33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40
41 You should have received a copy of the GNU General Public License
42 along with this program; if not, write to the Free Software
43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
44 */
45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
46
47 #include <linux/module.h>
48 #include <linux/kernel.h>
49 #include <linux/slab.h>
50 #include <linux/init.h>
51 #include <linux/errno.h>
52 #include <linux/kdev_t.h>
53 #include <linux/blkdev.h>
54 #include <linux/delay.h> /* for mdelay */
55 #include <linux/interrupt.h> /* needed for in_interrupt() proto */
56 #include <linux/reboot.h> /* notifier code */
57 #include <linux/workqueue.h>
58
59 #include <scsi/scsi.h>
60 #include <scsi/scsi_cmnd.h>
61 #include <scsi/scsi_device.h>
62 #include <scsi/scsi_host.h>
63 #include <scsi/scsi_tcq.h>
64 #include <scsi/scsi_dbg.h>
65
66 #include "mptbase.h"
67 #include "mptscsih.h"
68 #include "lsi/mpi_log_sas.h"
69
70 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
71 #define my_NAME "Fusion MPT SCSI Host driver"
72 #define my_VERSION MPT_LINUX_VERSION_COMMON
73 #define MYNAM "mptscsih"
74
75 MODULE_AUTHOR(MODULEAUTHOR);
76 MODULE_DESCRIPTION(my_NAME);
77 MODULE_LICENSE("GPL");
78 MODULE_VERSION(my_VERSION);
79
80 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
81 /*
82 * Other private/forward protos...
83 */
84 struct scsi_cmnd *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
85 static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i);
86 static void mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd);
87 static int SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd);
88 int mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
89 static void mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
90 int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
91
92 static int mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
93 SCSIIORequest_t *pReq, int req_idx);
94 static void mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
95 static void mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
96
97 int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id,
98 int lun, int ctx2abort, ulong timeout);
99
100 int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
101 int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
102
103 void
104 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code);
105 static int mptscsih_get_completion_code(MPT_ADAPTER *ioc,
106 MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply);
107 int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
108 static int mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
109 static void mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
110
111 static int
112 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
113 SCSITaskMgmtReply_t *pScsiTmReply);
114 void mptscsih_remove(struct pci_dev *);
115 void mptscsih_shutdown(struct pci_dev *);
116 #ifdef CONFIG_PM
117 int mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
118 int mptscsih_resume(struct pci_dev *pdev);
119 #endif
120
121 #define SNS_LEN(scp) SCSI_SENSE_BUFFERSIZE
122
123
124 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
125 /*
126 * mptscsih_getFreeChainBuffer - Function to get a free chain
127 * from the MPT_SCSI_HOST FreeChainQ.
128 * @ioc: Pointer to MPT_ADAPTER structure
129 * @req_idx: Index of the SCSI IO request frame. (output)
130 *
131 * return SUCCESS or FAILED
132 */
133 static inline int
134 mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
135 {
136 MPT_FRAME_HDR *chainBuf;
137 unsigned long flags;
138 int rc;
139 int chain_idx;
140
141 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n",
142 ioc->name));
143 spin_lock_irqsave(&ioc->FreeQlock, flags);
144 if (!list_empty(&ioc->FreeChainQ)) {
145 int offset;
146
147 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR,
148 u.frame.linkage.list);
149 list_del(&chainBuf->u.frame.linkage.list);
150 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer;
151 chain_idx = offset / ioc->req_sz;
152 rc = SUCCESS;
153 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
154 "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n",
155 ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx));
156 } else {
157 rc = FAILED;
158 chain_idx = MPT_HOST_NO_CHAIN;
159 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n",
160 ioc->name));
161 }
162 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
163
164 *retIndex = chain_idx;
165 return rc;
166 } /* mptscsih_getFreeChainBuffer() */
167
168 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
169 /*
170 * mptscsih_AddSGE - Add a SGE (plus chain buffers) to the
171 * SCSIIORequest_t Message Frame.
172 * @ioc: Pointer to MPT_ADAPTER structure
173 * @SCpnt: Pointer to scsi_cmnd structure
174 * @pReq: Pointer to SCSIIORequest_t structure
175 *
176 * Returns ...
177 */
178 static int
179 mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
180 SCSIIORequest_t *pReq, int req_idx)
181 {
182 char *psge;
183 char *chainSge;
184 struct scatterlist *sg;
185 int frm_sz;
186 int sges_left, sg_done;
187 int chain_idx = MPT_HOST_NO_CHAIN;
188 int sgeOffset;
189 int numSgeSlots, numSgeThisFrame;
190 u32 sgflags, sgdir, thisxfer = 0;
191 int chain_dma_off = 0;
192 int newIndex;
193 int ii;
194 dma_addr_t v2;
195 u32 RequestNB;
196
197 sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
198 if (sgdir == MPI_SCSIIO_CONTROL_WRITE) {
199 sgdir = MPT_TRANSFER_HOST_TO_IOC;
200 } else {
201 sgdir = MPT_TRANSFER_IOC_TO_HOST;
202 }
203
204 psge = (char *) &pReq->SGL;
205 frm_sz = ioc->req_sz;
206
207 /* Map the data portion, if any.
208 * sges_left = 0 if no data transfer.
209 */
210 sges_left = scsi_dma_map(SCpnt);
211 if (sges_left < 0)
212 return FAILED;
213
214 /* Handle the SG case.
215 */
216 sg = scsi_sglist(SCpnt);
217 sg_done = 0;
218 sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION);
219 chainSge = NULL;
220
221 /* Prior to entering this loop - the following must be set
222 * current MF: sgeOffset (bytes)
223 * chainSge (Null if original MF is not a chain buffer)
224 * sg_done (num SGE done for this MF)
225 */
226
227 nextSGEset:
228 numSgeSlots = ((frm_sz - sgeOffset) / ioc->SGE_size);
229 numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
230
231 sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | sgdir;
232
233 /* Get first (num - 1) SG elements
234 * Skip any SG entries with a length of 0
235 * NOTE: at finish, sg and psge pointed to NEXT data/location positions
236 */
237 for (ii=0; ii < (numSgeThisFrame-1); ii++) {
238 thisxfer = sg_dma_len(sg);
239 if (thisxfer == 0) {
240 /* Get next SG element from the OS */
241 sg = sg_next(sg);
242 sg_done++;
243 continue;
244 }
245
246 v2 = sg_dma_address(sg);
247 ioc->add_sge(psge, sgflags | thisxfer, v2);
248
249 /* Get next SG element from the OS */
250 sg = sg_next(sg);
251 psge += ioc->SGE_size;
252 sgeOffset += ioc->SGE_size;
253 sg_done++;
254 }
255
256 if (numSgeThisFrame == sges_left) {
257 /* Add last element, end of buffer and end of list flags.
258 */
259 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT |
260 MPT_SGE_FLAGS_END_OF_BUFFER |
261 MPT_SGE_FLAGS_END_OF_LIST;
262
263 /* Add last SGE and set termination flags.
264 * Note: Last SGE may have a length of 0 - which should be ok.
265 */
266 thisxfer = sg_dma_len(sg);
267
268 v2 = sg_dma_address(sg);
269 ioc->add_sge(psge, sgflags | thisxfer, v2);
270 sgeOffset += ioc->SGE_size;
271 sg_done++;
272
273 if (chainSge) {
274 /* The current buffer is a chain buffer,
275 * but there is not another one.
276 * Update the chain element
277 * Offset and Length fields.
278 */
279 ioc->add_chain((char *)chainSge, 0, sgeOffset,
280 ioc->ChainBufferDMA + chain_dma_off);
281 } else {
282 /* The current buffer is the original MF
283 * and there is no Chain buffer.
284 */
285 pReq->ChainOffset = 0;
286 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03;
287 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
288 "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
289 ioc->RequestNB[req_idx] = RequestNB;
290 }
291 } else {
292 /* At least one chain buffer is needed.
293 * Complete the first MF
294 * - last SGE element, set the LastElement bit
295 * - set ChainOffset (words) for orig MF
296 * (OR finish previous MF chain buffer)
297 * - update MFStructPtr ChainIndex
298 * - Populate chain element
299 * Also
300 * Loop until done.
301 */
302
303 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n",
304 ioc->name, sg_done));
305
306 /* Set LAST_ELEMENT flag for last non-chain element
307 * in the buffer. Since psge points at the NEXT
308 * SGE element, go back one SGE element, update the flags
309 * and reset the pointer. (Note: sgflags & thisxfer are already
310 * set properly).
311 */
312 if (sg_done) {
313 u32 *ptmp = (u32 *) (psge - ioc->SGE_size);
314 sgflags = le32_to_cpu(*ptmp);
315 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT;
316 *ptmp = cpu_to_le32(sgflags);
317 }
318
319 if (chainSge) {
320 /* The current buffer is a chain buffer.
321 * chainSge points to the previous Chain Element.
322 * Update its chain element Offset and Length (must
323 * include chain element size) fields.
324 * Old chain element is now complete.
325 */
326 u8 nextChain = (u8) (sgeOffset >> 2);
327 sgeOffset += ioc->SGE_size;
328 ioc->add_chain((char *)chainSge, nextChain, sgeOffset,
329 ioc->ChainBufferDMA + chain_dma_off);
330 } else {
331 /* The original MF buffer requires a chain buffer -
332 * set the offset.
333 * Last element in this MF is a chain element.
334 */
335 pReq->ChainOffset = (u8) (sgeOffset >> 2);
336 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03;
337 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
338 ioc->RequestNB[req_idx] = RequestNB;
339 }
340
341 sges_left -= sg_done;
342
343
344 /* NOTE: psge points to the beginning of the chain element
345 * in current buffer. Get a chain buffer.
346 */
347 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
348 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
349 "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
350 ioc->name, pReq->CDB[0], SCpnt));
351 return FAILED;
352 }
353
354 /* Update the tracking arrays.
355 * If chainSge == NULL, update ReqToChain, else ChainToChain
356 */
357 if (chainSge) {
358 ioc->ChainToChain[chain_idx] = newIndex;
359 } else {
360 ioc->ReqToChain[req_idx] = newIndex;
361 }
362 chain_idx = newIndex;
363 chain_dma_off = ioc->req_sz * chain_idx;
364
365 /* Populate the chainSGE for the current buffer.
366 * - Set chain buffer pointer to psge and fill
367 * out the Address and Flags fields.
368 */
369 chainSge = (char *) psge;
370 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Current buff @ %p (index 0x%x)",
371 ioc->name, psge, req_idx));
372
373 /* Start the SGE for the next buffer
374 */
375 psge = (char *) (ioc->ChainBuffer + chain_dma_off);
376 sgeOffset = 0;
377 sg_done = 0;
378
379 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Chain buff @ %p (index 0x%x)\n",
380 ioc->name, psge, chain_idx));
381
382 /* Start the SGE for the next buffer
383 */
384
385 goto nextSGEset;
386 }
387
388 return SUCCESS;
389 } /* mptscsih_AddSGE() */
390
391 static void
392 mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
393 U32 SlotStatus)
394 {
395 MPT_FRAME_HDR *mf;
396 SEPRequest_t *SEPMsg;
397
398 if (ioc->bus_type != SAS)
399 return;
400
401 /* Not supported for hidden raid components
402 */
403 if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
404 return;
405
406 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
407 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
408 ioc->name,__func__));
409 return;
410 }
411
412 SEPMsg = (SEPRequest_t *)mf;
413 SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
414 SEPMsg->Bus = vtarget->channel;
415 SEPMsg->TargetID = vtarget->id;
416 SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
417 SEPMsg->SlotStatus = SlotStatus;
418 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
419 "Sending SEP cmd=%x channel=%d id=%d\n",
420 ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
421 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
422 }
423
424 #ifdef CONFIG_FUSION_LOGGING
425 /**
426 * mptscsih_info_scsiio - debug print info on reply frame
427 * @ioc: Pointer to MPT_ADAPTER structure
428 * @sc: original scsi cmnd pointer
429 * @pScsiReply: Pointer to MPT reply frame
430 *
431 * MPT_DEBUG_REPLY needs to be enabled to obtain this info
432 *
433 * Refer to lsi/mpi.h.
434 **/
435 static void
436 mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
437 {
438 char *desc = NULL;
439 char *desc1 = NULL;
440 u16 ioc_status;
441 u8 skey, asc, ascq;
442
443 ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
444
445 switch (ioc_status) {
446
447 case MPI_IOCSTATUS_SUCCESS:
448 desc = "success";
449 break;
450 case MPI_IOCSTATUS_SCSI_INVALID_BUS:
451 desc = "invalid bus";
452 break;
453 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
454 desc = "invalid target_id";
455 break;
456 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
457 desc = "device not there";
458 break;
459 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
460 desc = "data overrun";
461 break;
462 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
463 desc = "data underrun";
464 break;
465 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
466 desc = "I/O data error";
467 break;
468 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
469 desc = "protocol error";
470 break;
471 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
472 desc = "task terminated";
473 break;
474 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
475 desc = "residual mismatch";
476 break;
477 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
478 desc = "task management failed";
479 break;
480 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
481 desc = "IOC terminated";
482 break;
483 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
484 desc = "ext terminated";
485 break;
486 default:
487 desc = "";
488 break;
489 }
490
491 switch (pScsiReply->SCSIStatus)
492 {
493
494 case MPI_SCSI_STATUS_SUCCESS:
495 desc1 = "success";
496 break;
497 case MPI_SCSI_STATUS_CHECK_CONDITION:
498 desc1 = "check condition";
499 break;
500 case MPI_SCSI_STATUS_CONDITION_MET:
501 desc1 = "condition met";
502 break;
503 case MPI_SCSI_STATUS_BUSY:
504 desc1 = "busy";
505 break;
506 case MPI_SCSI_STATUS_INTERMEDIATE:
507 desc1 = "intermediate";
508 break;
509 case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET:
510 desc1 = "intermediate condmet";
511 break;
512 case MPI_SCSI_STATUS_RESERVATION_CONFLICT:
513 desc1 = "reservation conflict";
514 break;
515 case MPI_SCSI_STATUS_COMMAND_TERMINATED:
516 desc1 = "command terminated";
517 break;
518 case MPI_SCSI_STATUS_TASK_SET_FULL:
519 desc1 = "task set full";
520 break;
521 case MPI_SCSI_STATUS_ACA_ACTIVE:
522 desc1 = "aca active";
523 break;
524 case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT:
525 desc1 = "fcpext device logged out";
526 break;
527 case MPI_SCSI_STATUS_FCPEXT_NO_LINK:
528 desc1 = "fcpext no link";
529 break;
530 case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED:
531 desc1 = "fcpext unassigned";
532 break;
533 default:
534 desc1 = "";
535 break;
536 }
537
538 scsi_print_command(sc);
539 printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %d\n",
540 ioc->name, pScsiReply->Bus, pScsiReply->TargetID, sc->device->lun);
541 printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
542 "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
543 scsi_get_resid(sc));
544 printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, "
545 "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag),
546 le32_to_cpu(pScsiReply->TransferCount), sc->result);
547
548 printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), "
549 "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
550 ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus,
551 pScsiReply->SCSIState);
552
553 if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
554 skey = sc->sense_buffer[2] & 0x0F;
555 asc = sc->sense_buffer[12];
556 ascq = sc->sense_buffer[13];
557
558 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: "
559 "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq);
560 }
561
562 /*
563 * Look for + dump FCP ResponseInfo[]!
564 */
565 if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
566 pScsiReply->ResponseInfo)
567 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n",
568 ioc->name, le32_to_cpu(pScsiReply->ResponseInfo));
569 }
570 #endif
571
572 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
573 /*
574 * mptscsih_io_done - Main SCSI IO callback routine registered to
575 * Fusion MPT (base) driver
576 * @ioc: Pointer to MPT_ADAPTER structure
577 * @mf: Pointer to original MPT request frame
578 * @r: Pointer to MPT reply frame (NULL if TurboReply)
579 *
580 * This routine is called from mpt.c::mpt_interrupt() at the completion
581 * of any SCSI IO request.
582 * This routine is registered with the Fusion MPT (base) driver at driver
583 * load/init time via the mpt_register() API call.
584 *
585 * Returns 1 indicating alloc'd request frame ptr should be freed.
586 */
587 int
588 mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
589 {
590 struct scsi_cmnd *sc;
591 MPT_SCSI_HOST *hd;
592 SCSIIORequest_t *pScsiReq;
593 SCSIIOReply_t *pScsiReply;
594 u16 req_idx, req_idx_MR;
595 VirtDevice *vdevice;
596 VirtTarget *vtarget;
597
598 hd = shost_priv(ioc->sh);
599 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
600 req_idx_MR = (mr != NULL) ?
601 le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
602
603 /* Special case, where already freed message frame is received from
604 * Firmware. It happens with Resetting IOC.
605 * Return immediately. Do not care
606 */
607 if ((req_idx != req_idx_MR) ||
608 (le32_to_cpu(mf->u.frame.linkage.arg1) == 0xdeadbeaf))
609 return 0;
610
611 sc = mptscsih_getclear_scsi_lookup(ioc, req_idx);
612 if (sc == NULL) {
613 MPIHeader_t *hdr = (MPIHeader_t *)mf;
614
615 /* Remark: writeSDP1 will use the ScsiDoneCtx
616 * If a SCSI I/O cmd, device disabled by OS and
617 * completion done. Cannot touch sc struct. Just free mem.
618 */
619 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST)
620 printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n",
621 ioc->name);
622
623 mptscsih_freeChainBuffers(ioc, req_idx);
624 return 1;
625 }
626
627 if ((unsigned char *)mf != sc->host_scribble) {
628 mptscsih_freeChainBuffers(ioc, req_idx);
629 return 1;
630 }
631
632 if (ioc->bus_type == SAS) {
633 VirtDevice *vdevice = sc->device->hostdata;
634
635 if (!vdevice || !vdevice->vtarget ||
636 vdevice->vtarget->deleted) {
637 sc->result = DID_NO_CONNECT << 16;
638 goto out;
639 }
640 }
641
642 sc->host_scribble = NULL;
643 sc->result = DID_OK << 16; /* Set default reply as OK */
644 pScsiReq = (SCSIIORequest_t *) mf;
645 pScsiReply = (SCSIIOReply_t *) mr;
646
647 if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
648 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
649 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n",
650 ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag));
651 }else{
652 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
653 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
654 ioc->name, mf, mr, sc, req_idx));
655 }
656
657 if (pScsiReply == NULL) {
658 /* special context reply handling */
659 ;
660 } else {
661 u32 xfer_cnt;
662 u16 status;
663 u8 scsi_state, scsi_status;
664 u32 log_info;
665
666 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
667
668 scsi_state = pScsiReply->SCSIState;
669 scsi_status = pScsiReply->SCSIStatus;
670 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
671 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
672 log_info = le32_to_cpu(pScsiReply->IOCLogInfo);
673
674 /*
675 * if we get a data underrun indication, yet no data was
676 * transferred and the SCSI status indicates that the
677 * command was never started, change the data underrun
678 * to success
679 */
680 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
681 (scsi_status == MPI_SCSI_STATUS_BUSY ||
682 scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT ||
683 scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) {
684 status = MPI_IOCSTATUS_SUCCESS;
685 }
686
687 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
688 mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);
689
690 /*
691 * Look for + dump FCP ResponseInfo[]!
692 */
693 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
694 pScsiReply->ResponseInfo) {
695 printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%d] "
696 "FCP_ResponseInfo=%08xh\n", ioc->name,
697 sc->device->host->host_no, sc->device->channel,
698 sc->device->id, sc->device->lun,
699 le32_to_cpu(pScsiReply->ResponseInfo));
700 }
701
702 switch(status) {
703 case MPI_IOCSTATUS_BUSY: /* 0x0002 */
704 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES: /* 0x0006 */
705 /* CHECKME!
706 * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry)
707 * But not: DID_BUS_BUSY lest one risk
708 * killing interrupt handler:-(
709 */
710 sc->result = SAM_STAT_BUSY;
711 break;
712
713 case MPI_IOCSTATUS_SCSI_INVALID_BUS: /* 0x0041 */
714 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID: /* 0x0042 */
715 sc->result = DID_BAD_TARGET << 16;
716 break;
717
718 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
719 /* Spoof to SCSI Selection Timeout! */
720 if (ioc->bus_type != FC)
721 sc->result = DID_NO_CONNECT << 16;
722 /* else fibre, just stall until rescan event */
723 else
724 sc->result = DID_REQUEUE << 16;
725
726 if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
727 hd->sel_timeout[pScsiReq->TargetID]++;
728
729 vdevice = sc->device->hostdata;
730 if (!vdevice)
731 break;
732 vtarget = vdevice->vtarget;
733 if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) {
734 mptscsih_issue_sep_command(ioc, vtarget,
735 MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED);
736 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON;
737 }
738 break;
739
740 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
741 if ( ioc->bus_type == SAS ) {
742 u16 ioc_status =
743 le16_to_cpu(pScsiReply->IOCStatus);
744 if ((ioc_status &
745 MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
746 &&
747 ((log_info & SAS_LOGINFO_MASK) ==
748 SAS_LOGINFO_NEXUS_LOSS)) {
749 VirtDevice *vdevice =
750 sc->device->hostdata;
751
752 /* flag the device as being in
753 * device removal delay so we can
754 * notify the midlayer to hold off
755 * on timeout eh */
756 if (vdevice && vdevice->
757 vtarget &&
758 vdevice->vtarget->
759 raidVolume)
760 printk(KERN_INFO
761 "Skipping Raid Volume"
762 "for inDMD\n");
763 else if (vdevice &&
764 vdevice->vtarget)
765 vdevice->vtarget->
766 inDMD = 1;
767
768 sc->result =
769 (DID_TRANSPORT_DISRUPTED
770 << 16);
771 break;
772 }
773 } else if (ioc->bus_type == FC) {
774 /*
775 * The FC IOC may kill a request for variety of
776 * reasons, some of which may be recovered by a
777 * retry, some which are unlikely to be
778 * recovered. Return DID_ERROR instead of
779 * DID_RESET to permit retry of the command,
780 * just not an infinite number of them
781 */
782 sc->result = DID_ERROR << 16;
783 break;
784 }
785
786 /*
787 * Allow non-SAS & non-NEXUS_LOSS to drop into below code
788 */
789
790 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
791 /* Linux handles an unsolicited DID_RESET better
792 * than an unsolicited DID_ABORT.
793 */
794 sc->result = DID_RESET << 16;
795 break;
796
797 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
798 if (ioc->bus_type == FC)
799 sc->result = DID_ERROR << 16;
800 else
801 sc->result = DID_RESET << 16;
802 break;
803
804 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: /* 0x0049 */
805 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
806 if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
807 sc->result=DID_SOFT_ERROR << 16;
808 else /* Sufficient data transfer occurred */
809 sc->result = (DID_OK << 16) | scsi_status;
810 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
811 "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
812 ioc->name, sc->result, sc->device->channel, sc->device->id));
813 break;
814
815 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
816 /*
817 * Do upfront check for valid SenseData and give it
818 * precedence!
819 */
820 sc->result = (DID_OK << 16) | scsi_status;
821 if (!(scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
822
823 /*
824 * For an Errata on LSI53C1030
825 * When the length of request data
826 * and transfer data are different
827 * with result of command (READ or VERIFY),
828 * DID_SOFT_ERROR is set.
829 */
830 if (ioc->bus_type == SPI) {
831 if ((pScsiReq->CDB[0] == READ_6 && ((pScsiReq->CDB[1] & 0x02) == 0)) ||
832 pScsiReq->CDB[0] == READ_10 ||
833 pScsiReq->CDB[0] == READ_12 ||
834 (pScsiReq->CDB[0] == READ_16 &&
835 ((pScsiReq->CDB[1] & 0x02) == 0)) ||
836 pScsiReq->CDB[0] == VERIFY ||
837 pScsiReq->CDB[0] == VERIFY_16) {
838 if (scsi_bufflen(sc) !=
839 xfer_cnt) {
840 sc->result =
841 DID_SOFT_ERROR << 16;
842 printk(KERN_WARNING "Errata"
843 "on LSI53C1030 occurred."
844 "sc->req_bufflen=0x%02x,"
845 "xfer_cnt=0x%02x\n",
846 scsi_bufflen(sc),
847 xfer_cnt);
848 }
849 }
850 }
851
852 if (xfer_cnt < sc->underflow) {
853 if (scsi_status == SAM_STAT_BUSY)
854 sc->result = SAM_STAT_BUSY;
855 else
856 sc->result = DID_SOFT_ERROR << 16;
857 }
858 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
859 /* What to do?
860 */
861 sc->result = DID_SOFT_ERROR << 16;
862 }
863 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
864 /* Not real sure here either... */
865 sc->result = DID_RESET << 16;
866 }
867 }
868
869
870 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
871 " sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
872 ioc->name, sc->underflow));
873 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
874 " ActBytesXferd=%02xh\n", ioc->name, xfer_cnt));
875
876 /* Report Queue Full
877 */
878 if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
879 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
880
881 break;
882
883 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: /* 0x0044 */
884 scsi_set_resid(sc, 0);
885 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
886 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
887 sc->result = (DID_OK << 16) | scsi_status;
888 if (scsi_state == 0) {
889 ;
890 } else if (scsi_state &
891 MPI_SCSI_STATE_AUTOSENSE_VALID) {
892
893 /*
894 * For potential trouble on LSI53C1030.
895 * (date:2007.xx.)
896 * It is checked whether the length of
897 * request data is equal to
898 * the length of transfer and residual.
899 * MEDIUM_ERROR is set by incorrect data.
900 */
901 if ((ioc->bus_type == SPI) &&
902 (sc->sense_buffer[2] & 0x20)) {
903 u32 difftransfer;
904 difftransfer =
905 sc->sense_buffer[3] << 24 |
906 sc->sense_buffer[4] << 16 |
907 sc->sense_buffer[5] << 8 |
908 sc->sense_buffer[6];
909 if (((sc->sense_buffer[3] & 0x80) ==
910 0x80) && (scsi_bufflen(sc)
911 != xfer_cnt)) {
912 sc->sense_buffer[2] =
913 MEDIUM_ERROR;
914 sc->sense_buffer[12] = 0xff;
915 sc->sense_buffer[13] = 0xff;
916 printk(KERN_WARNING"Errata"
917 "on LSI53C1030 occurred."
918 "sc->req_bufflen=0x%02x,"
919 "xfer_cnt=0x%02x\n" ,
920 scsi_bufflen(sc),
921 xfer_cnt);
922 }
923 if (((sc->sense_buffer[3] & 0x80)
924 != 0x80) &&
925 (scsi_bufflen(sc) !=
926 xfer_cnt + difftransfer)) {
927 sc->sense_buffer[2] =
928 MEDIUM_ERROR;
929 sc->sense_buffer[12] = 0xff;
930 sc->sense_buffer[13] = 0xff;
931 printk(KERN_WARNING
932 "Errata on LSI53C1030 occurred"
933 "sc->req_bufflen=0x%02x,"
934 " xfer_cnt=0x%02x,"
935 "difftransfer=0x%02x\n",
936 scsi_bufflen(sc),
937 xfer_cnt,
938 difftransfer);
939 }
940 }
941
942 /*
943 * If running against circa 200003dd 909 MPT f/w,
944 * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
945 * (QUEUE_FULL) returned from device! --> get 0x0000?128
946 * and with SenseBytes set to 0.
947 */
948 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
949 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
950
951 }
952 else if (scsi_state &
953 (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
954 ) {
955 /*
956 * What to do?
957 */
958 sc->result = DID_SOFT_ERROR << 16;
959 }
960 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
961 /* Not real sure here either... */
962 sc->result = DID_RESET << 16;
963 }
964 else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
965 /* Device Inq. data indicates that it supports
966 * QTags, but rejects QTag messages.
967 * This command completed OK.
968 *
969 * Not real sure here either so do nothing... */
970 }
971
972 if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
973 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
974
975 /* Add handling of:
976 * Reservation Conflict, Busy,
977 * Command Terminated, CHECK
978 */
979 break;
980
981 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
982 sc->result = DID_SOFT_ERROR << 16;
983 break;
984
985 case MPI_IOCSTATUS_INVALID_FUNCTION: /* 0x0001 */
986 case MPI_IOCSTATUS_INVALID_SGL: /* 0x0003 */
987 case MPI_IOCSTATUS_INTERNAL_ERROR: /* 0x0004 */
988 case MPI_IOCSTATUS_RESERVED: /* 0x0005 */
989 case MPI_IOCSTATUS_INVALID_FIELD: /* 0x0007 */
990 case MPI_IOCSTATUS_INVALID_STATE: /* 0x0008 */
991 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
992 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED: /* 0x004A */
993 default:
994 /*
995 * What to do?
996 */
997 sc->result = DID_SOFT_ERROR << 16;
998 break;
999
1000 } /* switch(status) */
1001
1002 #ifdef CONFIG_FUSION_LOGGING
1003 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
1004 mptscsih_info_scsiio(ioc, sc, pScsiReply);
1005 #endif
1006
1007 } /* end of address reply case */
1008 out:
1009 /* Unmap the DMA buffers, if any. */
1010 scsi_dma_unmap(sc);
1011
1012 sc->scsi_done(sc); /* Issue the command callback */
1013
1014 /* Free Chain buffers */
1015 mptscsih_freeChainBuffers(ioc, req_idx);
1016 return 1;
1017 }
1018
1019 /*
1020 * mptscsih_flush_running_cmds - For each command found, search
1021 * Scsi_Host instance taskQ and reply to OS.
1022 * Called only if recovering from a FW reload.
1023 * @hd: Pointer to a SCSI HOST structure
1024 *
1025 * Returns: None.
1026 *
1027 * Must be called while new I/Os are being queued.
1028 */
1029 void
1030 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
1031 {
1032 MPT_ADAPTER *ioc = hd->ioc;
1033 struct scsi_cmnd *sc;
1034 SCSIIORequest_t *mf = NULL;
1035 int ii;
1036 int channel, id;
1037
1038 for (ii= 0; ii < ioc->req_depth; ii++) {
1039 sc = mptscsih_getclear_scsi_lookup(ioc, ii);
1040 if (!sc)
1041 continue;
1042 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1043 if (!mf)
1044 continue;
1045 channel = mf->Bus;
1046 id = mf->TargetID;
1047 mptscsih_freeChainBuffers(ioc, ii);
1048 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1049 if ((unsigned char *)mf != sc->host_scribble)
1050 continue;
1051 scsi_dma_unmap(sc);
1052 sc->result = DID_RESET << 16;
1053 sc->host_scribble = NULL;
1054 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
1055 "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, "
1056 "idx=%x\n", ioc->name, channel, id, sc, mf, ii));
1057 sc->scsi_done(sc);
1058 }
1059 }
1060 EXPORT_SYMBOL(mptscsih_flush_running_cmds);
1061
1062 /*
1063 * mptscsih_search_running_cmds - Delete any commands associated
1064 * with the specified target and lun. Function called only
1065 * when a lun is disable by mid-layer.
1066 * Do NOT access the referenced scsi_cmnd structure or
1067 * members. Will cause either a paging or NULL ptr error.
1068 * (BUT, BUT, BUT, the code does reference it! - mdr)
1069 * @hd: Pointer to a SCSI HOST structure
1070 * @vdevice: per device private data
1071 *
1072 * Returns: None.
1073 *
1074 * Called from slave_destroy.
1075 */
1076 static void
1077 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
1078 {
1079 SCSIIORequest_t *mf = NULL;
1080 int ii;
1081 struct scsi_cmnd *sc;
1082 struct scsi_lun lun;
1083 MPT_ADAPTER *ioc = hd->ioc;
1084 unsigned long flags;
1085
1086 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1087 for (ii = 0; ii < ioc->req_depth; ii++) {
1088 if ((sc = ioc->ScsiLookup[ii]) != NULL) {
1089
1090 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1091 if (mf == NULL)
1092 continue;
1093 /* If the device is a hidden raid component, then its
1094 * expected that the mf->function will be RAID_SCSI_IO
1095 */
1096 if (vdevice->vtarget->tflags &
1097 MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
1098 MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
1099 continue;
1100
1101 int_to_scsilun(vdevice->lun, &lun);
1102 if ((mf->Bus != vdevice->vtarget->channel) ||
1103 (mf->TargetID != vdevice->vtarget->id) ||
1104 memcmp(lun.scsi_lun, mf->LUN, 8))
1105 continue;
1106
1107 if ((unsigned char *)mf != sc->host_scribble)
1108 continue;
1109 ioc->ScsiLookup[ii] = NULL;
1110 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1111 mptscsih_freeChainBuffers(ioc, ii);
1112 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1113 scsi_dma_unmap(sc);
1114 sc->host_scribble = NULL;
1115 sc->result = DID_NO_CONNECT << 16;
1116 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device,
1117 MYIOC_s_FMT "completing cmds: fw_channel %d, "
1118 "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name,
1119 vdevice->vtarget->channel, vdevice->vtarget->id,
1120 sc, mf, ii));
1121 sc->scsi_done(sc);
1122 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1123 }
1124 }
1125 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1126 return;
1127 }
1128
1129 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1130
1131 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1132 /*
1133 * mptscsih_report_queue_full - Report QUEUE_FULL status returned
1134 * from a SCSI target device.
1135 * @sc: Pointer to scsi_cmnd structure
1136 * @pScsiReply: Pointer to SCSIIOReply_t
1137 * @pScsiReq: Pointer to original SCSI request
1138 *
1139 * This routine periodically reports QUEUE_FULL status returned from a
1140 * SCSI target device. It reports this to the console via kernel
1141 * printk() API call, not more than once every 10 seconds.
1142 */
1143 static void
1144 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1145 {
1146 long time = jiffies;
1147 MPT_SCSI_HOST *hd;
1148 MPT_ADAPTER *ioc;
1149
1150 if (sc->device == NULL)
1151 return;
1152 if (sc->device->host == NULL)
1153 return;
1154 if ((hd = shost_priv(sc->device->host)) == NULL)
1155 return;
1156 ioc = hd->ioc;
1157 if (time - hd->last_queue_full > 10 * HZ) {
1158 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n",
1159 ioc->name, 0, sc->device->id, sc->device->lun));
1160 hd->last_queue_full = time;
1161 }
1162 }
1163
1164 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1165 /*
1166 * mptscsih_remove - Removed scsi devices
1167 * @pdev: Pointer to pci_dev structure
1168 *
1169 *
1170 */
1171 void
1172 mptscsih_remove(struct pci_dev *pdev)
1173 {
1174 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1175 struct Scsi_Host *host = ioc->sh;
1176 MPT_SCSI_HOST *hd;
1177 int sz1;
1178
1179 scsi_remove_host(host);
1180
1181 if((hd = shost_priv(host)) == NULL)
1182 return;
1183
1184 mptscsih_shutdown(pdev);
1185
1186 sz1=0;
1187
1188 if (ioc->ScsiLookup != NULL) {
1189 sz1 = ioc->req_depth * sizeof(void *);
1190 kfree(ioc->ScsiLookup);
1191 ioc->ScsiLookup = NULL;
1192 }
1193
1194 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1195 "Free'd ScsiLookup (%d) memory\n",
1196 ioc->name, sz1));
1197
1198 kfree(hd->info_kbuf);
1199
1200 /* NULL the Scsi_Host pointer
1201 */
1202 ioc->sh = NULL;
1203
1204 scsi_host_put(host);
1205
1206 mpt_detach(pdev);
1207
1208 }
1209
1210 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1211 /*
1212 * mptscsih_shutdown - reboot notifier
1213 *
1214 */
1215 void
1216 mptscsih_shutdown(struct pci_dev *pdev)
1217 {
1218 }
1219
1220 #ifdef CONFIG_PM
1221 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1222 /*
1223 * mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1224 *
1225 *
1226 */
1227 int
1228 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1229 {
1230 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1231
1232 scsi_block_requests(ioc->sh);
1233 flush_scheduled_work();
1234 mptscsih_shutdown(pdev);
1235 return mpt_suspend(pdev,state);
1236 }
1237
1238 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1239 /*
1240 * mptscsih_resume - Fusion MPT scsi driver resume routine.
1241 *
1242 *
1243 */
1244 int
1245 mptscsih_resume(struct pci_dev *pdev)
1246 {
1247 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1248 int rc;
1249
1250 rc = mpt_resume(pdev);
1251 scsi_unblock_requests(ioc->sh);
1252 return rc;
1253 }
1254
1255 #endif
1256
1257 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1258 /**
1259 * mptscsih_info - Return information about MPT adapter
1260 * @SChost: Pointer to Scsi_Host structure
1261 *
1262 * (linux scsi_host_template.info routine)
1263 *
1264 * Returns pointer to buffer where information was written.
1265 */
1266 const char *
1267 mptscsih_info(struct Scsi_Host *SChost)
1268 {
1269 MPT_SCSI_HOST *h;
1270 int size = 0;
1271
1272 h = shost_priv(SChost);
1273
1274 if (h) {
1275 if (h->info_kbuf == NULL)
1276 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1277 return h->info_kbuf;
1278 h->info_kbuf[0] = '\0';
1279
1280 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1281 h->info_kbuf[size-1] = '\0';
1282 }
1283
1284 return h->info_kbuf;
1285 }
1286
1287 struct info_str {
1288 char *buffer;
1289 int length;
1290 int offset;
1291 int pos;
1292 };
1293
1294 static void
1295 mptscsih_copy_mem_info(struct info_str *info, char *data, int len)
1296 {
1297 if (info->pos + len > info->length)
1298 len = info->length - info->pos;
1299
1300 if (info->pos + len < info->offset) {
1301 info->pos += len;
1302 return;
1303 }
1304
1305 if (info->pos < info->offset) {
1306 data += (info->offset - info->pos);
1307 len -= (info->offset - info->pos);
1308 }
1309
1310 if (len > 0) {
1311 memcpy(info->buffer + info->pos, data, len);
1312 info->pos += len;
1313 }
1314 }
1315
1316 static int
1317 mptscsih_copy_info(struct info_str *info, char *fmt, ...)
1318 {
1319 va_list args;
1320 char buf[81];
1321 int len;
1322
1323 va_start(args, fmt);
1324 len = vsprintf(buf, fmt, args);
1325 va_end(args);
1326
1327 mptscsih_copy_mem_info(info, buf, len);
1328 return len;
1329 }
1330
1331 static int
1332 mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len)
1333 {
1334 struct info_str info;
1335
1336 info.buffer = pbuf;
1337 info.length = len;
1338 info.offset = offset;
1339 info.pos = 0;
1340
1341 mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name);
1342 mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1343 mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts);
1344 mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth);
1345
1346 return ((info.pos > info.offset) ? info.pos - info.offset : 0);
1347 }
1348
1349 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1350 /**
1351 * mptscsih_proc_info - Return information about MPT adapter
1352 * @host: scsi host struct
1353 * @buffer: if write, user data; if read, buffer for user
1354 * @start: returns the buffer address
1355 * @offset: if write, 0; if read, the current offset into the buffer from
1356 * the previous read.
1357 * @length: if write, return length;
1358 * @func: write = 1; read = 0
1359 *
1360 * (linux scsi_host_template.info routine)
1361 */
1362 int
1363 mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
1364 int length, int func)
1365 {
1366 MPT_SCSI_HOST *hd = shost_priv(host);
1367 MPT_ADAPTER *ioc = hd->ioc;
1368 int size = 0;
1369
1370 if (func) {
1371 /*
1372 * write is not supported
1373 */
1374 } else {
1375 if (start)
1376 *start = buffer;
1377
1378 size = mptscsih_host_info(ioc, buffer, offset, length);
1379 }
1380
1381 return size;
1382 }
1383
1384 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1385 #define ADD_INDEX_LOG(req_ent) do { } while(0)
1386
1387 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1388 /**
1389 * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1390 * @SCpnt: Pointer to scsi_cmnd structure
1391 * @done: Pointer SCSI mid-layer IO completion function
1392 *
1393 * (linux scsi_host_template.queuecommand routine)
1394 * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest
1395 * from a linux scsi_cmnd request and send it to the IOC.
1396 *
1397 * Returns 0. (rtn value discarded by linux scsi mid-layer)
1398 */
1399 int
1400 mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1401 {
1402 MPT_SCSI_HOST *hd;
1403 MPT_FRAME_HDR *mf;
1404 SCSIIORequest_t *pScsiReq;
1405 VirtDevice *vdevice = SCpnt->device->hostdata;
1406 u32 datalen;
1407 u32 scsictl;
1408 u32 scsidir;
1409 u32 cmd_len;
1410 int my_idx;
1411 int ii;
1412 MPT_ADAPTER *ioc;
1413
1414 hd = shost_priv(SCpnt->device->host);
1415 ioc = hd->ioc;
1416 SCpnt->scsi_done = done;
1417
1418 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
1419 ioc->name, SCpnt, done));
1420
1421 if (ioc->taskmgmt_quiesce_io)
1422 return SCSI_MLQUEUE_HOST_BUSY;
1423
1424 /*
1425 * Put together a MPT SCSI request...
1426 */
1427 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1428 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1429 ioc->name));
1430 return SCSI_MLQUEUE_HOST_BUSY;
1431 }
1432
1433 pScsiReq = (SCSIIORequest_t *) mf;
1434
1435 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1436
1437 ADD_INDEX_LOG(my_idx);
1438
1439 /* TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1440 * Seems we may receive a buffer (datalen>0) even when there
1441 * will be no data transfer! GRRRRR...
1442 */
1443 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1444 datalen = scsi_bufflen(SCpnt);
1445 scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */
1446 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1447 datalen = scsi_bufflen(SCpnt);
1448 scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */
1449 } else {
1450 datalen = 0;
1451 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1452 }
1453
1454 /* Default to untagged. Once a target structure has been allocated,
1455 * use the Inquiry data to determine if device supports tagged.
1456 */
1457 if (vdevice
1458 && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1459 && (SCpnt->device->tagged_supported)) {
1460 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1461 if (SCpnt->request && SCpnt->request->ioprio) {
1462 if (((SCpnt->request->ioprio & 0x7) == 1) ||
1463 !(SCpnt->request->ioprio & 0x7))
1464 scsictl |= MPI_SCSIIO_CONTROL_HEADOFQ;
1465 }
1466 } else
1467 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1468
1469
1470 /* Use the above information to set up the message frame
1471 */
1472 pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1473 pScsiReq->Bus = vdevice->vtarget->channel;
1474 pScsiReq->ChainOffset = 0;
1475 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
1476 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1477 else
1478 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1479 pScsiReq->CDBLength = SCpnt->cmd_len;
1480 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1481 pScsiReq->Reserved = 0;
1482 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1483 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1484 pScsiReq->Control = cpu_to_le32(scsictl);
1485
1486 /*
1487 * Write SCSI CDB into the message
1488 */
1489 cmd_len = SCpnt->cmd_len;
1490 for (ii=0; ii < cmd_len; ii++)
1491 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1492
1493 for (ii=cmd_len; ii < 16; ii++)
1494 pScsiReq->CDB[ii] = 0;
1495
1496 /* DataLength */
1497 pScsiReq->DataLength = cpu_to_le32(datalen);
1498
1499 /* SenseBuffer low address */
1500 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1501 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1502
1503 /* Now add the SG list
1504 * Always have a SGE even if null length.
1505 */
1506 if (datalen == 0) {
1507 /* Add a NULL SGE */
1508 ioc->add_sge((char *)&pScsiReq->SGL,
1509 MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1510 (dma_addr_t) -1);
1511 } else {
1512 /* Add a 32 or 64 bit SGE */
1513 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1514 goto fail;
1515 }
1516
1517 SCpnt->host_scribble = (unsigned char *)mf;
1518 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1519
1520 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1521 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1522 ioc->name, SCpnt, mf, my_idx));
1523 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1524 return 0;
1525
1526 fail:
1527 mptscsih_freeChainBuffers(ioc, my_idx);
1528 mpt_free_msg_frame(ioc, mf);
1529 return SCSI_MLQUEUE_HOST_BUSY;
1530 }
1531
1532 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1533 /*
1534 * mptscsih_freeChainBuffers - Function to free chain buffers associated
1535 * with a SCSI IO request
1536 * @hd: Pointer to the MPT_SCSI_HOST instance
1537 * @req_idx: Index of the SCSI IO request frame.
1538 *
1539 * Called if SG chain buffer allocation fails and mptscsih callbacks.
1540 * No return.
1541 */
1542 static void
1543 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1544 {
1545 MPT_FRAME_HDR *chain;
1546 unsigned long flags;
1547 int chain_idx;
1548 int next;
1549
1550 /* Get the first chain index and reset
1551 * tracker state.
1552 */
1553 chain_idx = ioc->ReqToChain[req_idx];
1554 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1555
1556 while (chain_idx != MPT_HOST_NO_CHAIN) {
1557
1558 /* Save the next chain buffer index */
1559 next = ioc->ChainToChain[chain_idx];
1560
1561 /* Free this chain buffer and reset
1562 * tracker
1563 */
1564 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1565
1566 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1567 + (chain_idx * ioc->req_sz));
1568
1569 spin_lock_irqsave(&ioc->FreeQlock, flags);
1570 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1571 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1572
1573 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1574 ioc->name, chain_idx));
1575
1576 /* handle next */
1577 chain_idx = next;
1578 }
1579 return;
1580 }
1581
1582 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1583 /*
1584 * Reset Handling
1585 */
1586
1587 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1588 /**
1589 * mptscsih_IssueTaskMgmt - Generic send Task Management function.
1590 * @hd: Pointer to MPT_SCSI_HOST structure
1591 * @type: Task Management type
1592 * @channel: channel number for task management
1593 * @id: Logical Target ID for reset (if appropriate)
1594 * @lun: Logical Unit for reset (if appropriate)
1595 * @ctx2abort: Context for the task to be aborted (if appropriate)
1596 * @timeout: timeout for task management control
1597 *
1598 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1599 * or a non-interrupt thread. In the former, must not call schedule().
1600 *
1601 * Not all fields are meaningfull for all task types.
1602 *
1603 * Returns 0 for SUCCESS, or FAILED.
1604 *
1605 **/
1606 int
1607 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun,
1608 int ctx2abort, ulong timeout)
1609 {
1610 MPT_FRAME_HDR *mf;
1611 SCSITaskMgmt_t *pScsiTm;
1612 int ii;
1613 int retval;
1614 MPT_ADAPTER *ioc = hd->ioc;
1615 unsigned long timeleft;
1616 u8 issue_hard_reset;
1617 u32 ioc_raw_state;
1618 unsigned long time_count;
1619
1620 issue_hard_reset = 0;
1621 ioc_raw_state = mpt_GetIocState(ioc, 0);
1622
1623 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1624 printk(MYIOC_s_WARN_FMT
1625 "TaskMgmt type=%x: IOC Not operational (0x%x)!\n",
1626 ioc->name, type, ioc_raw_state);
1627 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
1628 ioc->name, __func__);
1629 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1630 printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset "
1631 "FAILED!!\n", ioc->name);
1632 return 0;
1633 }
1634
1635 /* DOORBELL ACTIVE check is not required if
1636 * MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported.
1637 */
1638
1639 if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q)
1640 && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) &&
1641 (ioc_raw_state & MPI_DOORBELL_ACTIVE)) {
1642 printk(MYIOC_s_WARN_FMT
1643 "TaskMgmt type=%x: ioc_state: "
1644 "DOORBELL_ACTIVE (0x%x)!\n",
1645 ioc->name, type, ioc_raw_state);
1646 return FAILED;
1647 }
1648
1649 mutex_lock(&ioc->taskmgmt_cmds.mutex);
1650 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
1651 mf = NULL;
1652 retval = FAILED;
1653 goto out;
1654 }
1655
1656 /* Return Fail to calling function if no message frames available.
1657 */
1658 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1659 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1660 "TaskMgmt no msg frames!!\n", ioc->name));
1661 retval = FAILED;
1662 mpt_clear_taskmgmt_in_progress_flag(ioc);
1663 goto out;
1664 }
1665 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
1666 ioc->name, mf));
1667
1668 /* Format the Request
1669 */
1670 pScsiTm = (SCSITaskMgmt_t *) mf;
1671 pScsiTm->TargetID = id;
1672 pScsiTm->Bus = channel;
1673 pScsiTm->ChainOffset = 0;
1674 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1675
1676 pScsiTm->Reserved = 0;
1677 pScsiTm->TaskType = type;
1678 pScsiTm->Reserved1 = 0;
1679 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1680 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1681
1682 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1683
1684 for (ii=0; ii < 7; ii++)
1685 pScsiTm->Reserved2[ii] = 0;
1686
1687 pScsiTm->TaskMsgContext = ctx2abort;
1688
1689 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) "
1690 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort,
1691 type, timeout));
1692
1693 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1694
1695 INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1696 time_count = jiffies;
1697 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1698 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1699 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1700 else {
1701 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1702 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1703 if (retval) {
1704 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1705 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n",
1706 ioc->name, mf, retval));
1707 mpt_free_msg_frame(ioc, mf);
1708 mpt_clear_taskmgmt_in_progress_flag(ioc);
1709 goto out;
1710 }
1711 }
1712
1713 timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
1714 timeout*HZ);
1715 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
1716 retval = FAILED;
1717 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
1718 "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf));
1719 mpt_clear_taskmgmt_in_progress_flag(ioc);
1720 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
1721 goto out;
1722 issue_hard_reset = 1;
1723 goto out;
1724 }
1725
1726 retval = mptscsih_taskmgmt_reply(ioc, type,
1727 (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply);
1728
1729 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1730 "TaskMgmt completed (%d seconds)\n",
1731 ioc->name, jiffies_to_msecs(jiffies - time_count)/1000));
1732
1733 out:
1734
1735 CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1736 if (issue_hard_reset) {
1737 printk(MYIOC_s_WARN_FMT
1738 "Issuing Reset from %s!! doorbell=0x%08x\n",
1739 ioc->name, __func__, mpt_GetIocState(ioc, 0));
1740 retval = (ioc->bus_type == SAS) ?
1741 mpt_HardResetHandler(ioc, CAN_SLEEP) :
1742 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1743 mpt_free_msg_frame(ioc, mf);
1744 }
1745
1746 retval = (retval == 0) ? 0 : FAILED;
1747 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
1748 return retval;
1749 }
1750 EXPORT_SYMBOL(mptscsih_IssueTaskMgmt);
1751
1752 static int
1753 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1754 {
1755 switch (ioc->bus_type) {
1756 case FC:
1757 return 40;
1758 case SAS:
1759 return 30;
1760 case SPI:
1761 default:
1762 return 10;
1763 }
1764 }
1765
1766 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1767 /**
1768 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1769 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1770 *
1771 * (linux scsi_host_template.eh_abort_handler routine)
1772 *
1773 * Returns SUCCESS or FAILED.
1774 **/
1775 int
1776 mptscsih_abort(struct scsi_cmnd * SCpnt)
1777 {
1778 MPT_SCSI_HOST *hd;
1779 MPT_FRAME_HDR *mf;
1780 u32 ctx2abort;
1781 int scpnt_idx;
1782 int retval;
1783 VirtDevice *vdevice;
1784 MPT_ADAPTER *ioc;
1785
1786 /* If we can't locate our host adapter structure, return FAILED status.
1787 */
1788 if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1789 SCpnt->result = DID_RESET << 16;
1790 SCpnt->scsi_done(SCpnt);
1791 printk(KERN_ERR MYNAM ": task abort: "
1792 "can't locate host! (sc=%p)\n", SCpnt);
1793 return FAILED;
1794 }
1795
1796 ioc = hd->ioc;
1797 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1798 ioc->name, SCpnt);
1799 scsi_print_command(SCpnt);
1800
1801 vdevice = SCpnt->device->hostdata;
1802 if (!vdevice || !vdevice->vtarget) {
1803 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1804 "task abort: device has been deleted (sc=%p)\n",
1805 ioc->name, SCpnt));
1806 SCpnt->result = DID_NO_CONNECT << 16;
1807 SCpnt->scsi_done(SCpnt);
1808 retval = SUCCESS;
1809 goto out;
1810 }
1811
1812 /* Task aborts are not supported for hidden raid components.
1813 */
1814 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1815 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1816 "task abort: hidden raid component (sc=%p)\n",
1817 ioc->name, SCpnt));
1818 SCpnt->result = DID_RESET << 16;
1819 retval = FAILED;
1820 goto out;
1821 }
1822
1823 /* Task aborts are not supported for volumes.
1824 */
1825 if (vdevice->vtarget->raidVolume) {
1826 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1827 "task abort: raid volume (sc=%p)\n",
1828 ioc->name, SCpnt));
1829 SCpnt->result = DID_RESET << 16;
1830 retval = FAILED;
1831 goto out;
1832 }
1833
1834 /* Find this command
1835 */
1836 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1837 /* Cmd not found in ScsiLookup.
1838 * Do OS callback.
1839 */
1840 SCpnt->result = DID_RESET << 16;
1841 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1842 "Command not in the active list! (sc=%p)\n", ioc->name,
1843 SCpnt));
1844 retval = SUCCESS;
1845 goto out;
1846 }
1847
1848 if (ioc->timeouts < -1)
1849 ioc->timeouts++;
1850
1851 if (mpt_fwfault_debug)
1852 mpt_halt_firmware(ioc);
1853
1854 /* Most important! Set TaskMsgContext to SCpnt's MsgContext!
1855 * (the IO to be ABORT'd)
1856 *
1857 * NOTE: Since we do not byteswap MsgContext, we do not
1858 * swap it here either. It is an opaque cookie to
1859 * the controller, so it does not matter. -DaveM
1860 */
1861 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1862 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1863 retval = mptscsih_IssueTaskMgmt(hd,
1864 MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1865 vdevice->vtarget->channel,
1866 vdevice->vtarget->id, vdevice->lun,
1867 ctx2abort, mptscsih_get_tm_timeout(ioc));
1868
1869 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) {
1870 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1871 "task abort: command still in active list! (sc=%p)\n",
1872 ioc->name, SCpnt));
1873 retval = FAILED;
1874 } else {
1875 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1876 "task abort: command cleared from active list! (sc=%p)\n",
1877 ioc->name, SCpnt));
1878 retval = SUCCESS;
1879 }
1880
1881 out:
1882 printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n",
1883 ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval,
1884 SCpnt);
1885
1886 return retval;
1887 }
1888
1889 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1890 /**
1891 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant
1892 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1893 *
1894 * (linux scsi_host_template.eh_dev_reset_handler routine)
1895 *
1896 * Returns SUCCESS or FAILED.
1897 **/
1898 int
1899 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1900 {
1901 MPT_SCSI_HOST *hd;
1902 int retval;
1903 VirtDevice *vdevice;
1904 MPT_ADAPTER *ioc;
1905
1906 /* If we can't locate our host adapter structure, return FAILED status.
1907 */
1908 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1909 printk(KERN_ERR MYNAM ": target reset: "
1910 "Can't locate host! (sc=%p)\n", SCpnt);
1911 return FAILED;
1912 }
1913
1914 ioc = hd->ioc;
1915 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1916 ioc->name, SCpnt);
1917 scsi_print_command(SCpnt);
1918
1919 vdevice = SCpnt->device->hostdata;
1920 if (!vdevice || !vdevice->vtarget) {
1921 retval = 0;
1922 goto out;
1923 }
1924
1925 /* Target reset to hidden raid component is not supported
1926 */
1927 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1928 retval = FAILED;
1929 goto out;
1930 }
1931
1932 retval = mptscsih_IssueTaskMgmt(hd,
1933 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1934 vdevice->vtarget->channel,
1935 vdevice->vtarget->id, 0, 0,
1936 mptscsih_get_tm_timeout(ioc));
1937
1938 out:
1939 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1940 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1941
1942 if (retval == 0)
1943 return SUCCESS;
1944 else
1945 return FAILED;
1946 }
1947
1948
1949 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1950 /**
1951 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant
1952 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1953 *
1954 * (linux scsi_host_template.eh_bus_reset_handler routine)
1955 *
1956 * Returns SUCCESS or FAILED.
1957 **/
1958 int
1959 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1960 {
1961 MPT_SCSI_HOST *hd;
1962 int retval;
1963 VirtDevice *vdevice;
1964 MPT_ADAPTER *ioc;
1965
1966 /* If we can't locate our host adapter structure, return FAILED status.
1967 */
1968 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1969 printk(KERN_ERR MYNAM ": bus reset: "
1970 "Can't locate host! (sc=%p)\n", SCpnt);
1971 return FAILED;
1972 }
1973
1974 ioc = hd->ioc;
1975 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1976 ioc->name, SCpnt);
1977 scsi_print_command(SCpnt);
1978
1979 if (ioc->timeouts < -1)
1980 ioc->timeouts++;
1981
1982 vdevice = SCpnt->device->hostdata;
1983 if (!vdevice || !vdevice->vtarget)
1984 return SUCCESS;
1985 retval = mptscsih_IssueTaskMgmt(hd,
1986 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1987 vdevice->vtarget->channel, 0, 0, 0,
1988 mptscsih_get_tm_timeout(ioc));
1989
1990 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1991 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1992
1993 if (retval == 0)
1994 return SUCCESS;
1995 else
1996 return FAILED;
1997 }
1998
1999 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2000 /**
2001 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
2002 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
2003 *
2004 * (linux scsi_host_template.eh_host_reset_handler routine)
2005 *
2006 * Returns SUCCESS or FAILED.
2007 */
2008 int
2009 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
2010 {
2011 MPT_SCSI_HOST * hd;
2012 int status = SUCCESS;
2013 MPT_ADAPTER *ioc;
2014 int retval;
2015
2016 /* If we can't locate the host to reset, then we failed. */
2017 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
2018 printk(KERN_ERR MYNAM ": host reset: "
2019 "Can't locate host! (sc=%p)\n", SCpnt);
2020 return FAILED;
2021 }
2022
2023 /* make sure we have no outstanding commands at this stage */
2024 mptscsih_flush_running_cmds(hd);
2025
2026 ioc = hd->ioc;
2027 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
2028 ioc->name, SCpnt);
2029
2030 /* If our attempts to reset the host failed, then return a failed
2031 * status. The host will be taken off line by the SCSI mid-layer.
2032 */
2033 retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
2034 if (retval < 0)
2035 status = FAILED;
2036 else
2037 status = SUCCESS;
2038
2039 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
2040 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
2041
2042 return status;
2043 }
2044
2045 static int
2046 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
2047 SCSITaskMgmtReply_t *pScsiTmReply)
2048 {
2049 u16 iocstatus;
2050 u32 termination_count;
2051 int retval;
2052
2053 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
2054 retval = FAILED;
2055 goto out;
2056 }
2057
2058 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
2059
2060 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2061 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
2062
2063 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2064 "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n"
2065 "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n"
2066 "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus,
2067 pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus),
2068 le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode,
2069 termination_count));
2070
2071 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
2072 pScsiTmReply->ResponseCode)
2073 mptscsih_taskmgmt_response_code(ioc,
2074 pScsiTmReply->ResponseCode);
2075
2076 if (iocstatus == MPI_IOCSTATUS_SUCCESS) {
2077 retval = 0;
2078 goto out;
2079 }
2080
2081 retval = FAILED;
2082 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
2083 if (termination_count == 1)
2084 retval = 0;
2085 goto out;
2086 }
2087
2088 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
2089 iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
2090 retval = 0;
2091
2092 out:
2093 return retval;
2094 }
2095
2096 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2097 void
2098 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2099 {
2100 char *desc;
2101
2102 switch (response_code) {
2103 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2104 desc = "The task completed.";
2105 break;
2106 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2107 desc = "The IOC received an invalid frame status.";
2108 break;
2109 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2110 desc = "The task type is not supported.";
2111 break;
2112 case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2113 desc = "The requested task failed.";
2114 break;
2115 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2116 desc = "The task completed successfully.";
2117 break;
2118 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2119 desc = "The LUN request is invalid.";
2120 break;
2121 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2122 desc = "The task is in the IOC queue and has not been sent to target.";
2123 break;
2124 default:
2125 desc = "unknown";
2126 break;
2127 }
2128 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2129 ioc->name, response_code, desc);
2130 }
2131 EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
2132
2133 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2134 /**
2135 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2136 * @ioc: Pointer to MPT_ADAPTER structure
2137 * @mf: Pointer to SCSI task mgmt request frame
2138 * @mr: Pointer to SCSI task mgmt reply frame
2139 *
2140 * This routine is called from mptbase.c::mpt_interrupt() at the completion
2141 * of any SCSI task management request.
2142 * This routine is registered with the MPT (base) driver at driver
2143 * load/init time via the mpt_register() API call.
2144 *
2145 * Returns 1 indicating alloc'd request frame ptr should be freed.
2146 **/
2147 int
2148 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf,
2149 MPT_FRAME_HDR *mr)
2150 {
2151 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2152 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr));
2153
2154 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2155
2156 if (!mr)
2157 goto out;
2158
2159 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2160 memcpy(ioc->taskmgmt_cmds.reply, mr,
2161 min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
2162 out:
2163 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
2164 mpt_clear_taskmgmt_in_progress_flag(ioc);
2165 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2166 complete(&ioc->taskmgmt_cmds.done);
2167 if (ioc->bus_type == SAS)
2168 ioc->schedule_target_reset(ioc);
2169 return 1;
2170 }
2171 return 0;
2172 }
2173
2174 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2175 /*
2176 * This is anyones guess quite frankly.
2177 */
2178 int
2179 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2180 sector_t capacity, int geom[])
2181 {
2182 int heads;
2183 int sectors;
2184 sector_t cylinders;
2185 ulong dummy;
2186
2187 heads = 64;
2188 sectors = 32;
2189
2190 dummy = heads * sectors;
2191 cylinders = capacity;
2192 sector_div(cylinders,dummy);
2193
2194 /*
2195 * Handle extended translation size for logical drives
2196 * > 1Gb
2197 */
2198 if ((ulong)capacity >= 0x200000) {
2199 heads = 255;
2200 sectors = 63;
2201 dummy = heads * sectors;
2202 cylinders = capacity;
2203 sector_div(cylinders,dummy);
2204 }
2205
2206 /* return result */
2207 geom[0] = heads;
2208 geom[1] = sectors;
2209 geom[2] = cylinders;
2210
2211 return 0;
2212 }
2213
2214 /* Search IOC page 3 to determine if this is hidden physical disk
2215 *
2216 */
2217 int
2218 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2219 {
2220 struct inactive_raid_component_info *component_info;
2221 int i, j;
2222 RaidPhysDiskPage1_t *phys_disk;
2223 int rc = 0;
2224 int num_paths;
2225
2226 if (!ioc->raid_data.pIocPg3)
2227 goto out;
2228 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2229 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2230 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2231 rc = 1;
2232 goto out;
2233 }
2234 }
2235
2236 if (ioc->bus_type != SAS)
2237 goto out;
2238
2239 /*
2240 * Check if dual path
2241 */
2242 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2243 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2244 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2245 if (num_paths < 2)
2246 continue;
2247 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2248 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2249 if (!phys_disk)
2250 continue;
2251 if ((mpt_raid_phys_disk_pg1(ioc,
2252 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2253 phys_disk))) {
2254 kfree(phys_disk);
2255 continue;
2256 }
2257 for (j = 0; j < num_paths; j++) {
2258 if ((phys_disk->Path[j].Flags &
2259 MPI_RAID_PHYSDISK1_FLAG_INVALID))
2260 continue;
2261 if ((phys_disk->Path[j].Flags &
2262 MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2263 continue;
2264 if ((id == phys_disk->Path[j].PhysDiskID) &&
2265 (channel == phys_disk->Path[j].PhysDiskBus)) {
2266 rc = 1;
2267 kfree(phys_disk);
2268 goto out;
2269 }
2270 }
2271 kfree(phys_disk);
2272 }
2273
2274
2275 /*
2276 * Check inactive list for matching phys disks
2277 */
2278 if (list_empty(&ioc->raid_data.inactive_list))
2279 goto out;
2280
2281 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2282 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2283 list) {
2284 if ((component_info->d.PhysDiskID == id) &&
2285 (component_info->d.PhysDiskBus == channel))
2286 rc = 1;
2287 }
2288 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2289
2290 out:
2291 return rc;
2292 }
2293 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2294
2295 u8
2296 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2297 {
2298 struct inactive_raid_component_info *component_info;
2299 int i, j;
2300 RaidPhysDiskPage1_t *phys_disk;
2301 int rc = -ENXIO;
2302 int num_paths;
2303
2304 if (!ioc->raid_data.pIocPg3)
2305 goto out;
2306 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2307 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2308 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2309 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2310 goto out;
2311 }
2312 }
2313
2314 if (ioc->bus_type != SAS)
2315 goto out;
2316
2317 /*
2318 * Check if dual path
2319 */
2320 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2321 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2322 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2323 if (num_paths < 2)
2324 continue;
2325 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2326 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2327 if (!phys_disk)
2328 continue;
2329 if ((mpt_raid_phys_disk_pg1(ioc,
2330 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2331 phys_disk))) {
2332 kfree(phys_disk);
2333 continue;
2334 }
2335 for (j = 0; j < num_paths; j++) {
2336 if ((phys_disk->Path[j].Flags &
2337 MPI_RAID_PHYSDISK1_FLAG_INVALID))
2338 continue;
2339 if ((phys_disk->Path[j].Flags &
2340 MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2341 continue;
2342 if ((id == phys_disk->Path[j].PhysDiskID) &&
2343 (channel == phys_disk->Path[j].PhysDiskBus)) {
2344 rc = phys_disk->PhysDiskNum;
2345 kfree(phys_disk);
2346 goto out;
2347 }
2348 }
2349 kfree(phys_disk);
2350 }
2351
2352 /*
2353 * Check inactive list for matching phys disks
2354 */
2355 if (list_empty(&ioc->raid_data.inactive_list))
2356 goto out;
2357
2358 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2359 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2360 list) {
2361 if ((component_info->d.PhysDiskID == id) &&
2362 (component_info->d.PhysDiskBus == channel))
2363 rc = component_info->d.PhysDiskNum;
2364 }
2365 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2366
2367 out:
2368 return rc;
2369 }
2370 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2371
2372 /*
2373 * OS entry point to allow for host driver to free allocated memory
2374 * Called if no device present or device being unloaded
2375 */
2376 void
2377 mptscsih_slave_destroy(struct scsi_device *sdev)
2378 {
2379 struct Scsi_Host *host = sdev->host;
2380 MPT_SCSI_HOST *hd = shost_priv(host);
2381 VirtTarget *vtarget;
2382 VirtDevice *vdevice;
2383 struct scsi_target *starget;
2384
2385 starget = scsi_target(sdev);
2386 vtarget = starget->hostdata;
2387 vdevice = sdev->hostdata;
2388 if (!vdevice)
2389 return;
2390
2391 mptscsih_search_running_cmds(hd, vdevice);
2392 vtarget->num_luns--;
2393 mptscsih_synchronize_cache(hd, vdevice);
2394 kfree(vdevice);
2395 sdev->hostdata = NULL;
2396 }
2397
2398 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2399 /*
2400 * mptscsih_change_queue_depth - This function will set a devices queue depth
2401 * @sdev: per scsi_device pointer
2402 * @qdepth: requested queue depth
2403 * @reason: calling context
2404 *
2405 * Adding support for new 'change_queue_depth' api.
2406 */
2407 int
2408 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
2409 {
2410 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
2411 VirtTarget *vtarget;
2412 struct scsi_target *starget;
2413 int max_depth;
2414 int tagged;
2415 MPT_ADAPTER *ioc = hd->ioc;
2416
2417 starget = scsi_target(sdev);
2418 vtarget = starget->hostdata;
2419
2420 if (reason != SCSI_QDEPTH_DEFAULT)
2421 return -EOPNOTSUPP;
2422
2423 if (ioc->bus_type == SPI) {
2424 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2425 max_depth = 1;
2426 else if (sdev->type == TYPE_DISK &&
2427 vtarget->minSyncFactor <= MPT_ULTRA160)
2428 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2429 else
2430 max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2431 } else
2432 max_depth = ioc->sh->can_queue;
2433
2434 if (!sdev->tagged_supported)
2435 max_depth = 1;
2436
2437 if (qdepth > max_depth)
2438 qdepth = max_depth;
2439 if (qdepth == 1)
2440 tagged = 0;
2441 else
2442 tagged = MSG_SIMPLE_TAG;
2443
2444 scsi_adjust_queue_depth(sdev, tagged, qdepth);
2445 return sdev->queue_depth;
2446 }
2447
2448 /*
2449 * OS entry point to adjust the queue_depths on a per-device basis.
2450 * Called once per device the bus scan. Use it to force the queue_depth
2451 * member to 1 if a device does not support Q tags.
2452 * Return non-zero if fails.
2453 */
2454 int
2455 mptscsih_slave_configure(struct scsi_device *sdev)
2456 {
2457 struct Scsi_Host *sh = sdev->host;
2458 VirtTarget *vtarget;
2459 VirtDevice *vdevice;
2460 struct scsi_target *starget;
2461 MPT_SCSI_HOST *hd = shost_priv(sh);
2462 MPT_ADAPTER *ioc = hd->ioc;
2463
2464 starget = scsi_target(sdev);
2465 vtarget = starget->hostdata;
2466 vdevice = sdev->hostdata;
2467
2468 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2469 "device @ %p, channel=%d, id=%d, lun=%d\n",
2470 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2471 if (ioc->bus_type == SPI)
2472 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2473 "sdtr %d wdtr %d ppr %d inq length=%d\n",
2474 ioc->name, sdev->sdtr, sdev->wdtr,
2475 sdev->ppr, sdev->inquiry_len));
2476
2477 vdevice->configured_lun = 1;
2478
2479 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2480 "Queue depth=%d, tflags=%x\n",
2481 ioc->name, sdev->queue_depth, vtarget->tflags));
2482
2483 if (ioc->bus_type == SPI)
2484 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2485 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2486 ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2487 vtarget->minSyncFactor));
2488
2489 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH,
2490 SCSI_QDEPTH_DEFAULT);
2491 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2492 "tagged %d, simple %d, ordered %d\n",
2493 ioc->name,sdev->tagged_supported, sdev->simple_tags,
2494 sdev->ordered_tags));
2495
2496 blk_queue_dma_alignment (sdev->request_queue, 512 - 1);
2497
2498 return 0;
2499 }
2500
2501 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2502 /*
2503 * Private routines...
2504 */
2505
2506 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2507 /* Utility function to copy sense data from the scsi_cmnd buffer
2508 * to the FC and SCSI target structures.
2509 *
2510 */
2511 static void
2512 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2513 {
2514 VirtDevice *vdevice;
2515 SCSIIORequest_t *pReq;
2516 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount);
2517 MPT_ADAPTER *ioc = hd->ioc;
2518
2519 /* Get target structure
2520 */
2521 pReq = (SCSIIORequest_t *) mf;
2522 vdevice = sc->device->hostdata;
2523
2524 if (sense_count) {
2525 u8 *sense_data;
2526 int req_index;
2527
2528 /* Copy the sense received into the scsi command block. */
2529 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2530 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2531 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2532
2533 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2534 */
2535 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2536 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2537 int idx;
2538
2539 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2540 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2541 ioc->events[idx].eventContext = ioc->eventContext;
2542
2543 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2544 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2545 (sc->device->channel << 8) | sc->device->id;
2546
2547 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2548
2549 ioc->eventContext++;
2550 if (ioc->pcidev->vendor ==
2551 PCI_VENDOR_ID_IBM) {
2552 mptscsih_issue_sep_command(ioc,
2553 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2554 vdevice->vtarget->tflags |=
2555 MPT_TARGET_FLAGS_LED_ON;
2556 }
2557 }
2558 }
2559 } else {
2560 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2561 ioc->name));
2562 }
2563 }
2564
2565 /**
2566 * mptscsih_get_scsi_lookup - retrieves scmd entry
2567 * @ioc: Pointer to MPT_ADAPTER structure
2568 * @i: index into the array
2569 *
2570 * Returns the scsi_cmd pointer
2571 */
2572 struct scsi_cmnd *
2573 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2574 {
2575 unsigned long flags;
2576 struct scsi_cmnd *scmd;
2577
2578 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2579 scmd = ioc->ScsiLookup[i];
2580 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2581
2582 return scmd;
2583 }
2584 EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
2585
2586 /**
2587 * mptscsih_getclear_scsi_lookup - retrieves and clears scmd entry from ScsiLookup[] array list
2588 * @ioc: Pointer to MPT_ADAPTER structure
2589 * @i: index into the array
2590 *
2591 * Returns the scsi_cmd pointer
2592 *
2593 **/
2594 static struct scsi_cmnd *
2595 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2596 {
2597 unsigned long flags;
2598 struct scsi_cmnd *scmd;
2599
2600 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2601 scmd = ioc->ScsiLookup[i];
2602 ioc->ScsiLookup[i] = NULL;
2603 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2604
2605 return scmd;
2606 }
2607
2608 /**
2609 * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list
2610 *
2611 * @ioc: Pointer to MPT_ADAPTER structure
2612 * @i: index into the array
2613 * @scmd: scsi_cmnd pointer
2614 *
2615 **/
2616 static void
2617 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2618 {
2619 unsigned long flags;
2620
2621 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2622 ioc->ScsiLookup[i] = scmd;
2623 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2624 }
2625
2626 /**
2627 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2628 * @ioc: Pointer to MPT_ADAPTER structure
2629 * @sc: scsi_cmnd pointer
2630 */
2631 static int
2632 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2633 {
2634 unsigned long flags;
2635 int i, index=-1;
2636
2637 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2638 for (i = 0; i < ioc->req_depth; i++) {
2639 if (ioc->ScsiLookup[i] == sc) {
2640 index = i;
2641 goto out;
2642 }
2643 }
2644
2645 out:
2646 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2647 return index;
2648 }
2649
2650 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2651 int
2652 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2653 {
2654 MPT_SCSI_HOST *hd;
2655
2656 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2657 return 0;
2658
2659 hd = shost_priv(ioc->sh);
2660 switch (reset_phase) {
2661 case MPT_IOC_SETUP_RESET:
2662 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2663 "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
2664 break;
2665 case MPT_IOC_PRE_RESET:
2666 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2667 "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
2668 mptscsih_flush_running_cmds(hd);
2669 break;
2670 case MPT_IOC_POST_RESET:
2671 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2672 "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
2673 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) {
2674 ioc->internal_cmds.status |=
2675 MPT_MGMT_STATUS_DID_IOCRESET;
2676 complete(&ioc->internal_cmds.done);
2677 }
2678 break;
2679 default:
2680 break;
2681 }
2682 return 1; /* currently means nothing really */
2683 }
2684
2685 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2686 int
2687 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2688 {
2689 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2690
2691 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2692 "MPT event (=%02Xh) routed to SCSI host driver!\n",
2693 ioc->name, event));
2694
2695 if ((event == MPI_EVENT_IOC_BUS_RESET ||
2696 event == MPI_EVENT_EXT_BUS_RESET) &&
2697 (ioc->bus_type == SPI) && (ioc->soft_resets < -1))
2698 ioc->soft_resets++;
2699
2700 return 1; /* currently means nothing really */
2701 }
2702
2703 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2704 /*
2705 * Bus Scan and Domain Validation functionality ...
2706 */
2707
2708 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2709 /*
2710 * mptscsih_scandv_complete - Scan and DV callback routine registered
2711 * to Fustion MPT (base) driver.
2712 *
2713 * @ioc: Pointer to MPT_ADAPTER structure
2714 * @mf: Pointer to original MPT request frame
2715 * @mr: Pointer to MPT reply frame (NULL if TurboReply)
2716 *
2717 * This routine is called from mpt.c::mpt_interrupt() at the completion
2718 * of any SCSI IO request.
2719 * This routine is registered with the Fusion MPT (base) driver at driver
2720 * load/init time via the mpt_register() API call.
2721 *
2722 * Returns 1 indicating alloc'd request frame ptr should be freed.
2723 *
2724 * Remark: Sets a completion code and (possibly) saves sense data
2725 * in the IOC member localReply structure.
2726 * Used ONLY for DV and other internal commands.
2727 */
2728 int
2729 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2730 MPT_FRAME_HDR *reply)
2731 {
2732 SCSIIORequest_t *pReq;
2733 SCSIIOReply_t *pReply;
2734 u8 cmd;
2735 u16 req_idx;
2736 u8 *sense_data;
2737 int sz;
2738
2739 ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2740 ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD;
2741 if (!reply)
2742 goto out;
2743
2744 pReply = (SCSIIOReply_t *) reply;
2745 pReq = (SCSIIORequest_t *) req;
2746 ioc->internal_cmds.completion_code =
2747 mptscsih_get_completion_code(ioc, req, reply);
2748 ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2749 memcpy(ioc->internal_cmds.reply, reply,
2750 min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength));
2751 cmd = reply->u.hdr.Function;
2752 if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
2753 (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) &&
2754 (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
2755 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
2756 sense_data = ((u8 *)ioc->sense_buf_pool +
2757 (req_idx * MPT_SENSE_BUFFER_ALLOC));
2758 sz = min_t(int, pReq->SenseBufferLength,
2759 MPT_SENSE_BUFFER_ALLOC);
2760 memcpy(ioc->internal_cmds.sense, sense_data, sz);
2761 }
2762 out:
2763 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING))
2764 return 0;
2765 ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2766 complete(&ioc->internal_cmds.done);
2767 return 1;
2768 }
2769
2770
2771 /**
2772 * mptscsih_get_completion_code - get completion code from MPT request
2773 * @ioc: Pointer to MPT_ADAPTER structure
2774 * @req: Pointer to original MPT request frame
2775 * @reply: Pointer to MPT reply frame (NULL if TurboReply)
2776 *
2777 **/
2778 static int
2779 mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2780 MPT_FRAME_HDR *reply)
2781 {
2782 SCSIIOReply_t *pReply;
2783 MpiRaidActionReply_t *pr;
2784 u8 scsi_status;
2785 u16 status;
2786 int completion_code;
2787
2788 pReply = (SCSIIOReply_t *)reply;
2789 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2790 scsi_status = pReply->SCSIStatus;
2791
2792 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2793 "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh,"
2794 "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState,
2795 scsi_status, le32_to_cpu(pReply->IOCLogInfo)));
2796
2797 switch (status) {
2798
2799 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
2800 completion_code = MPT_SCANDV_SELECTION_TIMEOUT;
2801 break;
2802
2803 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
2804 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
2805 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
2806 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
2807 completion_code = MPT_SCANDV_DID_RESET;
2808 break;
2809
2810 case MPI_IOCSTATUS_BUSY:
2811 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
2812 completion_code = MPT_SCANDV_BUSY;
2813 break;
2814
2815 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
2816 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
2817 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
2818 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2819 completion_code = MPT_SCANDV_GOOD;
2820 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2821 pr = (MpiRaidActionReply_t *)reply;
2822 if (le16_to_cpu(pr->ActionStatus) ==
2823 MPI_RAID_ACTION_ASTATUS_SUCCESS)
2824 completion_code = MPT_SCANDV_GOOD;
2825 else
2826 completion_code = MPT_SCANDV_SOME_ERROR;
2827 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)
2828 completion_code = MPT_SCANDV_SENSE;
2829 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2830 if (req->u.scsireq.CDB[0] == INQUIRY)
2831 completion_code = MPT_SCANDV_ISSUE_SENSE;
2832 else
2833 completion_code = MPT_SCANDV_DID_RESET;
2834 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2835 completion_code = MPT_SCANDV_DID_RESET;
2836 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2837 completion_code = MPT_SCANDV_DID_RESET;
2838 else if (scsi_status == MPI_SCSI_STATUS_BUSY)
2839 completion_code = MPT_SCANDV_BUSY;
2840 else
2841 completion_code = MPT_SCANDV_GOOD;
2842 break;
2843
2844 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
2845 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2846 completion_code = MPT_SCANDV_DID_RESET;
2847 else
2848 completion_code = MPT_SCANDV_SOME_ERROR;
2849 break;
2850 default:
2851 completion_code = MPT_SCANDV_SOME_ERROR;
2852 break;
2853
2854 } /* switch(status) */
2855
2856 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2857 " completionCode set to %08xh\n", ioc->name, completion_code));
2858 return completion_code;
2859 }
2860
2861 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2862 /**
2863 * mptscsih_do_cmd - Do internal command.
2864 * @hd: MPT_SCSI_HOST pointer
2865 * @io: INTERNAL_CMD pointer.
2866 *
2867 * Issue the specified internally generated command and do command
2868 * specific cleanup. For bus scan / DV only.
2869 * NOTES: If command is Inquiry and status is good,
2870 * initialize a target structure, save the data
2871 *
2872 * Remark: Single threaded access only.
2873 *
2874 * Return:
2875 * < 0 if an illegal command or no resources
2876 *
2877 * 0 if good
2878 *
2879 * > 0 if command complete but some type of completion error.
2880 */
2881 static int
2882 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2883 {
2884 MPT_FRAME_HDR *mf;
2885 SCSIIORequest_t *pScsiReq;
2886 int my_idx, ii, dir;
2887 int timeout;
2888 char cmdLen;
2889 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2890 u8 cmd = io->cmd;
2891 MPT_ADAPTER *ioc = hd->ioc;
2892 int ret = 0;
2893 unsigned long timeleft;
2894 unsigned long flags;
2895
2896 /* don't send internal command during diag reset */
2897 spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
2898 if (ioc->ioc_reset_in_progress) {
2899 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2900 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2901 "%s: busy with host reset\n", ioc->name, __func__));
2902 return MPT_SCANDV_BUSY;
2903 }
2904 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2905
2906 mutex_lock(&ioc->internal_cmds.mutex);
2907
2908 /* Set command specific information
2909 */
2910 switch (cmd) {
2911 case INQUIRY:
2912 cmdLen = 6;
2913 dir = MPI_SCSIIO_CONTROL_READ;
2914 CDB[0] = cmd;
2915 CDB[4] = io->size;
2916 timeout = 10;
2917 break;
2918
2919 case TEST_UNIT_READY:
2920 cmdLen = 6;
2921 dir = MPI_SCSIIO_CONTROL_READ;
2922 timeout = 10;
2923 break;
2924
2925 case START_STOP:
2926 cmdLen = 6;
2927 dir = MPI_SCSIIO_CONTROL_READ;
2928 CDB[0] = cmd;
2929 CDB[4] = 1; /*Spin up the disk */
2930 timeout = 15;
2931 break;
2932
2933 case REQUEST_SENSE:
2934 cmdLen = 6;
2935 CDB[0] = cmd;
2936 CDB[4] = io->size;
2937 dir = MPI_SCSIIO_CONTROL_READ;
2938 timeout = 10;
2939 break;
2940
2941 case READ_BUFFER:
2942 cmdLen = 10;
2943 dir = MPI_SCSIIO_CONTROL_READ;
2944 CDB[0] = cmd;
2945 if (io->flags & MPT_ICFLAG_ECHO) {
2946 CDB[1] = 0x0A;
2947 } else {
2948 CDB[1] = 0x02;
2949 }
2950
2951 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2952 CDB[1] |= 0x01;
2953 }
2954 CDB[6] = (io->size >> 16) & 0xFF;
2955 CDB[7] = (io->size >> 8) & 0xFF;
2956 CDB[8] = io->size & 0xFF;
2957 timeout = 10;
2958 break;
2959
2960 case WRITE_BUFFER:
2961 cmdLen = 10;
2962 dir = MPI_SCSIIO_CONTROL_WRITE;
2963 CDB[0] = cmd;
2964 if (io->flags & MPT_ICFLAG_ECHO) {
2965 CDB[1] = 0x0A;
2966 } else {
2967 CDB[1] = 0x02;
2968 }
2969 CDB[6] = (io->size >> 16) & 0xFF;
2970 CDB[7] = (io->size >> 8) & 0xFF;
2971 CDB[8] = io->size & 0xFF;
2972 timeout = 10;
2973 break;
2974
2975 case RESERVE:
2976 cmdLen = 6;
2977 dir = MPI_SCSIIO_CONTROL_READ;
2978 CDB[0] = cmd;
2979 timeout = 10;
2980 break;
2981
2982 case RELEASE:
2983 cmdLen = 6;
2984 dir = MPI_SCSIIO_CONTROL_READ;
2985 CDB[0] = cmd;
2986 timeout = 10;
2987 break;
2988
2989 case SYNCHRONIZE_CACHE:
2990 cmdLen = 10;
2991 dir = MPI_SCSIIO_CONTROL_READ;
2992 CDB[0] = cmd;
2993 // CDB[1] = 0x02; /* set immediate bit */
2994 timeout = 10;
2995 break;
2996
2997 default:
2998 /* Error Case */
2999 ret = -EFAULT;
3000 goto out;
3001 }
3002
3003 /* Get and Populate a free Frame
3004 * MsgContext set in mpt_get_msg_frame call
3005 */
3006 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
3007 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n",
3008 ioc->name, __func__));
3009 ret = MPT_SCANDV_BUSY;
3010 goto out;
3011 }
3012
3013 pScsiReq = (SCSIIORequest_t *) mf;
3014
3015 /* Get the request index */
3016 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
3017 ADD_INDEX_LOG(my_idx); /* for debug */
3018
3019 if (io->flags & MPT_ICFLAG_PHYS_DISK) {
3020 pScsiReq->TargetID = io->physDiskNum;
3021 pScsiReq->Bus = 0;
3022 pScsiReq->ChainOffset = 0;
3023 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3024 } else {
3025 pScsiReq->TargetID = io->id;
3026 pScsiReq->Bus = io->channel;
3027 pScsiReq->ChainOffset = 0;
3028 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
3029 }
3030
3031 pScsiReq->CDBLength = cmdLen;
3032 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
3033
3034 pScsiReq->Reserved = 0;
3035
3036 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
3037 /* MsgContext set in mpt_get_msg_fram call */
3038
3039 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
3040
3041 if (io->flags & MPT_ICFLAG_TAGGED_CMD)
3042 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
3043 else
3044 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3045
3046 if (cmd == REQUEST_SENSE) {
3047 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3048 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
3049 "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd));
3050 }
3051
3052 for (ii = 0; ii < 16; ii++)
3053 pScsiReq->CDB[ii] = CDB[ii];
3054
3055 pScsiReq->DataLength = cpu_to_le32(io->size);
3056 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
3057 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
3058
3059 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
3060 "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%d\n",
3061 ioc->name, __func__, cmd, io->channel, io->id, io->lun));
3062
3063 if (dir == MPI_SCSIIO_CONTROL_READ)
3064 ioc->add_sge((char *) &pScsiReq->SGL,
3065 MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma);
3066 else
3067 ioc->add_sge((char *) &pScsiReq->SGL,
3068 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma);
3069
3070 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
3071 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
3072 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done,
3073 timeout*HZ);
3074 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
3075 ret = MPT_SCANDV_DID_RESET;
3076 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
3077 "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__,
3078 cmd));
3079 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
3080 mpt_free_msg_frame(ioc, mf);
3081 goto out;
3082 }
3083 if (!timeleft) {
3084 printk(MYIOC_s_WARN_FMT
3085 "Issuing Reset from %s!! doorbell=0x%08xh"
3086 " cmd=0x%02x\n",
3087 ioc->name, __func__, mpt_GetIocState(ioc, 0),
3088 cmd);
3089 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
3090 mpt_free_msg_frame(ioc, mf);
3091 }
3092 goto out;
3093 }
3094
3095 ret = ioc->internal_cmds.completion_code;
3096 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n",
3097 ioc->name, __func__, ret));
3098
3099 out:
3100 CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
3101 mutex_unlock(&ioc->internal_cmds.mutex);
3102 return ret;
3103 }
3104
3105 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3106 /**
3107 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3108 * @hd: Pointer to a SCSI HOST structure
3109 * @vdevice: virtual target device
3110 *
3111 * Uses the ISR, but with special processing.
3112 * MUST be single-threaded.
3113 *
3114 */
3115 static void
3116 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3117 {
3118 INTERNAL_CMD iocmd;
3119
3120 /* Ignore hidden raid components, this is handled when the command
3121 * is sent to the volume
3122 */
3123 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3124 return;
3125
3126 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3127 !vdevice->configured_lun)
3128 return;
3129
3130 /* Following parameters will not change
3131 * in this routine.
3132 */
3133 iocmd.cmd = SYNCHRONIZE_CACHE;
3134 iocmd.flags = 0;
3135 iocmd.physDiskNum = -1;
3136 iocmd.data = NULL;
3137 iocmd.data_dma = -1;
3138 iocmd.size = 0;
3139 iocmd.rsvd = iocmd.rsvd2 = 0;
3140 iocmd.channel = vdevice->vtarget->channel;
3141 iocmd.id = vdevice->vtarget->id;
3142 iocmd.lun = vdevice->lun;
3143
3144 mptscsih_do_cmd(hd, &iocmd);
3145 }
3146
3147 static ssize_t
3148 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3149 char *buf)
3150 {
3151 struct Scsi_Host *host = class_to_shost(dev);
3152 MPT_SCSI_HOST *hd = shost_priv(host);
3153 MPT_ADAPTER *ioc = hd->ioc;
3154
3155 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3156 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3157 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3158 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3159 ioc->facts.FWVersion.Word & 0x000000FF);
3160 }
3161 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3162
3163 static ssize_t
3164 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3165 char *buf)
3166 {
3167 struct Scsi_Host *host = class_to_shost(dev);
3168 MPT_SCSI_HOST *hd = shost_priv(host);
3169 MPT_ADAPTER *ioc = hd->ioc;
3170
3171 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3172 (ioc->biosVersion & 0xFF000000) >> 24,
3173 (ioc->biosVersion & 0x00FF0000) >> 16,
3174 (ioc->biosVersion & 0x0000FF00) >> 8,
3175 ioc->biosVersion & 0x000000FF);
3176 }
3177 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3178
3179 static ssize_t
3180 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3181 char *buf)
3182 {
3183 struct Scsi_Host *host = class_to_shost(dev);
3184 MPT_SCSI_HOST *hd = shost_priv(host);
3185 MPT_ADAPTER *ioc = hd->ioc;
3186
3187 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3188 }
3189 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3190
3191 static ssize_t
3192 mptscsih_version_product_show(struct device *dev,
3193 struct device_attribute *attr,
3194 char *buf)
3195 {
3196 struct Scsi_Host *host = class_to_shost(dev);
3197 MPT_SCSI_HOST *hd = shost_priv(host);
3198 MPT_ADAPTER *ioc = hd->ioc;
3199
3200 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3201 }
3202 static DEVICE_ATTR(version_product, S_IRUGO,
3203 mptscsih_version_product_show, NULL);
3204
3205 static ssize_t
3206 mptscsih_version_nvdata_persistent_show(struct device *dev,
3207 struct device_attribute *attr,
3208 char *buf)
3209 {
3210 struct Scsi_Host *host = class_to_shost(dev);
3211 MPT_SCSI_HOST *hd = shost_priv(host);
3212 MPT_ADAPTER *ioc = hd->ioc;
3213
3214 return snprintf(buf, PAGE_SIZE, "%02xh\n",
3215 ioc->nvdata_version_persistent);
3216 }
3217 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3218 mptscsih_version_nvdata_persistent_show, NULL);
3219
3220 static ssize_t
3221 mptscsih_version_nvdata_default_show(struct device *dev,
3222 struct device_attribute *attr, char *buf)
3223 {
3224 struct Scsi_Host *host = class_to_shost(dev);
3225 MPT_SCSI_HOST *hd = shost_priv(host);
3226 MPT_ADAPTER *ioc = hd->ioc;
3227
3228 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3229 }
3230 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3231 mptscsih_version_nvdata_default_show, NULL);
3232
3233 static ssize_t
3234 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3235 char *buf)
3236 {
3237 struct Scsi_Host *host = class_to_shost(dev);
3238 MPT_SCSI_HOST *hd = shost_priv(host);
3239 MPT_ADAPTER *ioc = hd->ioc;
3240
3241 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3242 }
3243 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3244
3245 static ssize_t
3246 mptscsih_board_assembly_show(struct device *dev,
3247 struct device_attribute *attr, char *buf)
3248 {
3249 struct Scsi_Host *host = class_to_shost(dev);
3250 MPT_SCSI_HOST *hd = shost_priv(host);
3251 MPT_ADAPTER *ioc = hd->ioc;
3252
3253 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3254 }
3255 static DEVICE_ATTR(board_assembly, S_IRUGO,
3256 mptscsih_board_assembly_show, NULL);
3257
3258 static ssize_t
3259 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3260 char *buf)
3261 {
3262 struct Scsi_Host *host = class_to_shost(dev);
3263 MPT_SCSI_HOST *hd = shost_priv(host);
3264 MPT_ADAPTER *ioc = hd->ioc;
3265
3266 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3267 }
3268 static DEVICE_ATTR(board_tracer, S_IRUGO,
3269 mptscsih_board_tracer_show, NULL);
3270
3271 static ssize_t
3272 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3273 char *buf)
3274 {
3275 struct Scsi_Host *host = class_to_shost(dev);
3276 MPT_SCSI_HOST *hd = shost_priv(host);
3277 MPT_ADAPTER *ioc = hd->ioc;
3278
3279 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3280 }
3281 static DEVICE_ATTR(io_delay, S_IRUGO,
3282 mptscsih_io_delay_show, NULL);
3283
3284 static ssize_t
3285 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3286 char *buf)
3287 {
3288 struct Scsi_Host *host = class_to_shost(dev);
3289 MPT_SCSI_HOST *hd = shost_priv(host);
3290 MPT_ADAPTER *ioc = hd->ioc;
3291
3292 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3293 }
3294 static DEVICE_ATTR(device_delay, S_IRUGO,
3295 mptscsih_device_delay_show, NULL);
3296
3297 static ssize_t
3298 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3299 char *buf)
3300 {
3301 struct Scsi_Host *host = class_to_shost(dev);
3302 MPT_SCSI_HOST *hd = shost_priv(host);
3303 MPT_ADAPTER *ioc = hd->ioc;
3304
3305 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3306 }
3307 static ssize_t
3308 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3309 const char *buf, size_t count)
3310 {
3311 struct Scsi_Host *host = class_to_shost(dev);
3312 MPT_SCSI_HOST *hd = shost_priv(host);
3313 MPT_ADAPTER *ioc = hd->ioc;
3314 int val = 0;
3315
3316 if (sscanf(buf, "%x", &val) != 1)
3317 return -EINVAL;
3318
3319 ioc->debug_level = val;
3320 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3321 ioc->name, ioc->debug_level);
3322 return strlen(buf);
3323 }
3324 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3325 mptscsih_debug_level_show, mptscsih_debug_level_store);
3326
3327 struct device_attribute *mptscsih_host_attrs[] = {
3328 &dev_attr_version_fw,
3329 &dev_attr_version_bios,
3330 &dev_attr_version_mpi,
3331 &dev_attr_version_product,
3332 &dev_attr_version_nvdata_persistent,
3333 &dev_attr_version_nvdata_default,
3334 &dev_attr_board_name,
3335 &dev_attr_board_assembly,
3336 &dev_attr_board_tracer,
3337 &dev_attr_io_delay,
3338 &dev_attr_device_delay,
3339 &dev_attr_debug_level,
3340 NULL,
3341 };
3342
3343 EXPORT_SYMBOL(mptscsih_host_attrs);
3344
3345 EXPORT_SYMBOL(mptscsih_remove);
3346 EXPORT_SYMBOL(mptscsih_shutdown);
3347 #ifdef CONFIG_PM
3348 EXPORT_SYMBOL(mptscsih_suspend);
3349 EXPORT_SYMBOL(mptscsih_resume);
3350 #endif
3351 EXPORT_SYMBOL(mptscsih_proc_info);
3352 EXPORT_SYMBOL(mptscsih_info);
3353 EXPORT_SYMBOL(mptscsih_qcmd);
3354 EXPORT_SYMBOL(mptscsih_slave_destroy);
3355 EXPORT_SYMBOL(mptscsih_slave_configure);
3356 EXPORT_SYMBOL(mptscsih_abort);
3357 EXPORT_SYMBOL(mptscsih_dev_reset);
3358 EXPORT_SYMBOL(mptscsih_bus_reset);
3359 EXPORT_SYMBOL(mptscsih_host_reset);
3360 EXPORT_SYMBOL(mptscsih_bios_param);
3361 EXPORT_SYMBOL(mptscsih_io_done);
3362 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3363 EXPORT_SYMBOL(mptscsih_scandv_complete);
3364 EXPORT_SYMBOL(mptscsih_event_process);
3365 EXPORT_SYMBOL(mptscsih_ioc_reset);
3366 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3367
3368 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
kernel source for telekom puls (alcatel/mediatek)