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[SCSI] mpt fusion: Fixing 1078 data corruption issue for 36GB memory region
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / message / fusion / mptscsih.c
blob8c08c73f194c83774dd77511880d43cd23a38f19
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/init.h>
50 #include <linux/errno.h>
51 #include <linux/kdev_t.h>
52 #include <linux/blkdev.h>
53 #include <linux/delay.h> /* for mdelay */
54 #include <linux/interrupt.h> /* needed for in_interrupt() proto */
55 #include <linux/reboot.h> /* notifier code */
56 #include <linux/workqueue.h>
57
58 #include <scsi/scsi.h>
59 #include <scsi/scsi_cmnd.h>
60 #include <scsi/scsi_device.h>
61 #include <scsi/scsi_host.h>
62 #include <scsi/scsi_tcq.h>
63 #include <scsi/scsi_dbg.h>
64
65 #include "mptbase.h"
66 #include "mptscsih.h"
67 #include "lsi/mpi_log_sas.h"
68
69 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
70 #define my_NAME "Fusion MPT SCSI Host driver"
71 #define my_VERSION MPT_LINUX_VERSION_COMMON
72 #define MYNAM "mptscsih"
73
74 MODULE_AUTHOR(MODULEAUTHOR);
75 MODULE_DESCRIPTION(my_NAME);
76 MODULE_LICENSE("GPL");
77 MODULE_VERSION(my_VERSION);
78
79 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
80 /*
81 * Other private/forward protos...
82 */
83 static struct scsi_cmnd * mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
84 static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i);
85 static void mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd);
86 static int SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd);
87 int mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
88 static void mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
89 int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
90
91 static int mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
92 SCSIIORequest_t *pReq, int req_idx);
93 static void mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
94 static void mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
95 static int mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd);
96 static int mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout );
97
98 static int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, 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 int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
104 static int mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
105 static void mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
106
107 void mptscsih_remove(struct pci_dev *);
108 void mptscsih_shutdown(struct pci_dev *);
109 #ifdef CONFIG_PM
110 int mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
111 int mptscsih_resume(struct pci_dev *pdev);
112 #endif
113
114 #define SNS_LEN(scp) SCSI_SENSE_BUFFERSIZE
115
116
117 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
118 /*
119 * mptscsih_getFreeChainBuffer - Function to get a free chain
120 * from the MPT_SCSI_HOST FreeChainQ.
121 * @ioc: Pointer to MPT_ADAPTER structure
122 * @req_idx: Index of the SCSI IO request frame. (output)
123 *
124 * return SUCCESS or FAILED
125 */
126 static inline int
127 mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
128 {
129 MPT_FRAME_HDR *chainBuf;
130 unsigned long flags;
131 int rc;
132 int chain_idx;
133
134 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n",
135 ioc->name));
136 spin_lock_irqsave(&ioc->FreeQlock, flags);
137 if (!list_empty(&ioc->FreeChainQ)) {
138 int offset;
139
140 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR,
141 u.frame.linkage.list);
142 list_del(&chainBuf->u.frame.linkage.list);
143 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer;
144 chain_idx = offset / ioc->req_sz;
145 rc = SUCCESS;
146 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
147 "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n",
148 ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx));
149 } else {
150 rc = FAILED;
151 chain_idx = MPT_HOST_NO_CHAIN;
152 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n",
153 ioc->name));
154 }
155 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
156
157 *retIndex = chain_idx;
158 return rc;
159 } /* mptscsih_getFreeChainBuffer() */
160
161 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
162 /*
163 * mptscsih_AddSGE - Add a SGE (plus chain buffers) to the
164 * SCSIIORequest_t Message Frame.
165 * @ioc: Pointer to MPT_ADAPTER structure
166 * @SCpnt: Pointer to scsi_cmnd structure
167 * @pReq: Pointer to SCSIIORequest_t structure
168 *
169 * Returns ...
170 */
171 static int
172 mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
173 SCSIIORequest_t *pReq, int req_idx)
174 {
175 char *psge;
176 char *chainSge;
177 struct scatterlist *sg;
178 int frm_sz;
179 int sges_left, sg_done;
180 int chain_idx = MPT_HOST_NO_CHAIN;
181 int sgeOffset;
182 int numSgeSlots, numSgeThisFrame;
183 u32 sgflags, sgdir, thisxfer = 0;
184 int chain_dma_off = 0;
185 int newIndex;
186 int ii;
187 dma_addr_t v2;
188 u32 RequestNB;
189
190 sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
191 if (sgdir == MPI_SCSIIO_CONTROL_WRITE) {
192 sgdir = MPT_TRANSFER_HOST_TO_IOC;
193 } else {
194 sgdir = MPT_TRANSFER_IOC_TO_HOST;
195 }
196
197 psge = (char *) &pReq->SGL;
198 frm_sz = ioc->req_sz;
199
200 /* Map the data portion, if any.
201 * sges_left = 0 if no data transfer.
202 */
203 sges_left = scsi_dma_map(SCpnt);
204 if (sges_left < 0)
205 return FAILED;
206
207 /* Handle the SG case.
208 */
209 sg = scsi_sglist(SCpnt);
210 sg_done = 0;
211 sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION);
212 chainSge = NULL;
213
214 /* Prior to entering this loop - the following must be set
215 * current MF: sgeOffset (bytes)
216 * chainSge (Null if original MF is not a chain buffer)
217 * sg_done (num SGE done for this MF)
218 */
219
220 nextSGEset:
221 numSgeSlots = ((frm_sz - sgeOffset) / ioc->SGE_size);
222 numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
223
224 sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | sgdir;
225
226 /* Get first (num - 1) SG elements
227 * Skip any SG entries with a length of 0
228 * NOTE: at finish, sg and psge pointed to NEXT data/location positions
229 */
230 for (ii=0; ii < (numSgeThisFrame-1); ii++) {
231 thisxfer = sg_dma_len(sg);
232 if (thisxfer == 0) {
233 sg = sg_next(sg); /* Get next SG element from the OS */
234 sg_done++;
235 continue;
236 }
237
238 v2 = sg_dma_address(sg);
239 ioc->add_sge(psge, sgflags | thisxfer, v2);
240
241 sg = sg_next(sg); /* Get next SG element from the OS */
242 psge += ioc->SGE_size;
243 sgeOffset += ioc->SGE_size;
244 sg_done++;
245 }
246
247 if (numSgeThisFrame == sges_left) {
248 /* Add last element, end of buffer and end of list flags.
249 */
250 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT |
251 MPT_SGE_FLAGS_END_OF_BUFFER |
252 MPT_SGE_FLAGS_END_OF_LIST;
253
254 /* Add last SGE and set termination flags.
255 * Note: Last SGE may have a length of 0 - which should be ok.
256 */
257 thisxfer = sg_dma_len(sg);
258
259 v2 = sg_dma_address(sg);
260 ioc->add_sge(psge, sgflags | thisxfer, v2);
261 sgeOffset += ioc->SGE_size;
262 sg_done++;
263
264 if (chainSge) {
265 /* The current buffer is a chain buffer,
266 * but there is not another one.
267 * Update the chain element
268 * Offset and Length fields.
269 */
270 ioc->add_chain((char *)chainSge, 0, sgeOffset,
271 ioc->ChainBufferDMA + chain_dma_off);
272 } else {
273 /* The current buffer is the original MF
274 * and there is no Chain buffer.
275 */
276 pReq->ChainOffset = 0;
277 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03;
278 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
279 "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
280 ioc->RequestNB[req_idx] = RequestNB;
281 }
282 } else {
283 /* At least one chain buffer is needed.
284 * Complete the first MF
285 * - last SGE element, set the LastElement bit
286 * - set ChainOffset (words) for orig MF
287 * (OR finish previous MF chain buffer)
288 * - update MFStructPtr ChainIndex
289 * - Populate chain element
290 * Also
291 * Loop until done.
292 */
293
294 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n",
295 ioc->name, sg_done));
296
297 /* Set LAST_ELEMENT flag for last non-chain element
298 * in the buffer. Since psge points at the NEXT
299 * SGE element, go back one SGE element, update the flags
300 * and reset the pointer. (Note: sgflags & thisxfer are already
301 * set properly).
302 */
303 if (sg_done) {
304 u32 *ptmp = (u32 *) (psge - ioc->SGE_size);
305 sgflags = le32_to_cpu(*ptmp);
306 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT;
307 *ptmp = cpu_to_le32(sgflags);
308 }
309
310 if (chainSge) {
311 /* The current buffer is a chain buffer.
312 * chainSge points to the previous Chain Element.
313 * Update its chain element Offset and Length (must
314 * include chain element size) fields.
315 * Old chain element is now complete.
316 */
317 u8 nextChain = (u8) (sgeOffset >> 2);
318 sgeOffset += ioc->SGE_size;
319 ioc->add_chain((char *)chainSge, nextChain, sgeOffset,
320 ioc->ChainBufferDMA + chain_dma_off);
321 } else {
322 /* The original MF buffer requires a chain buffer -
323 * set the offset.
324 * Last element in this MF is a chain element.
325 */
326 pReq->ChainOffset = (u8) (sgeOffset >> 2);
327 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03;
328 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
329 ioc->RequestNB[req_idx] = RequestNB;
330 }
331
332 sges_left -= sg_done;
333
334
335 /* NOTE: psge points to the beginning of the chain element
336 * in current buffer. Get a chain buffer.
337 */
338 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
339 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
340 "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
341 ioc->name, pReq->CDB[0], SCpnt));
342 return FAILED;
343 }
344
345 /* Update the tracking arrays.
346 * If chainSge == NULL, update ReqToChain, else ChainToChain
347 */
348 if (chainSge) {
349 ioc->ChainToChain[chain_idx] = newIndex;
350 } else {
351 ioc->ReqToChain[req_idx] = newIndex;
352 }
353 chain_idx = newIndex;
354 chain_dma_off = ioc->req_sz * chain_idx;
355
356 /* Populate the chainSGE for the current buffer.
357 * - Set chain buffer pointer to psge and fill
358 * out the Address and Flags fields.
359 */
360 chainSge = (char *) psge;
361 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Current buff @ %p (index 0x%x)",
362 ioc->name, psge, req_idx));
363
364 /* Start the SGE for the next buffer
365 */
366 psge = (char *) (ioc->ChainBuffer + chain_dma_off);
367 sgeOffset = 0;
368 sg_done = 0;
369
370 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Chain buff @ %p (index 0x%x)\n",
371 ioc->name, psge, chain_idx));
372
373 /* Start the SGE for the next buffer
374 */
375
376 goto nextSGEset;
377 }
378
379 return SUCCESS;
380 } /* mptscsih_AddSGE() */
381
382 static void
383 mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
384 U32 SlotStatus)
385 {
386 MPT_FRAME_HDR *mf;
387 SEPRequest_t *SEPMsg;
388
389 if (ioc->bus_type != SAS)
390 return;
391
392 /* Not supported for hidden raid components
393 */
394 if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
395 return;
396
397 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
398 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
399 ioc->name,__func__));
400 return;
401 }
402
403 SEPMsg = (SEPRequest_t *)mf;
404 SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
405 SEPMsg->Bus = vtarget->channel;
406 SEPMsg->TargetID = vtarget->id;
407 SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
408 SEPMsg->SlotStatus = SlotStatus;
409 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
410 "Sending SEP cmd=%x channel=%d id=%d\n",
411 ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
412 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
413 }
414
415 #ifdef CONFIG_FUSION_LOGGING
416 /**
417 * mptscsih_info_scsiio - debug print info on reply frame
418 * @ioc: Pointer to MPT_ADAPTER structure
419 * @sc: original scsi cmnd pointer
420 * @pScsiReply: Pointer to MPT reply frame
421 *
422 * MPT_DEBUG_REPLY needs to be enabled to obtain this info
423 *
424 * Refer to lsi/mpi.h.
425 **/
426 static void
427 mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
428 {
429 char *desc = NULL;
430 char *desc1 = NULL;
431 u16 ioc_status;
432 u8 skey, asc, ascq;
433
434 ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
435
436 switch (ioc_status) {
437
438 case MPI_IOCSTATUS_SUCCESS:
439 desc = "success";
440 break;
441 case MPI_IOCSTATUS_SCSI_INVALID_BUS:
442 desc = "invalid bus";
443 break;
444 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
445 desc = "invalid target_id";
446 break;
447 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
448 desc = "device not there";
449 break;
450 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
451 desc = "data overrun";
452 break;
453 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
454 desc = "data underrun";
455 break;
456 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
457 desc = "I/O data error";
458 break;
459 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
460 desc = "protocol error";
461 break;
462 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
463 desc = "task terminated";
464 break;
465 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
466 desc = "residual mismatch";
467 break;
468 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
469 desc = "task management failed";
470 break;
471 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
472 desc = "IOC terminated";
473 break;
474 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
475 desc = "ext terminated";
476 break;
477 default:
478 desc = "";
479 break;
480 }
481
482 switch (pScsiReply->SCSIStatus)
483 {
484
485 case MPI_SCSI_STATUS_SUCCESS:
486 desc1 = "success";
487 break;
488 case MPI_SCSI_STATUS_CHECK_CONDITION:
489 desc1 = "check condition";
490 break;
491 case MPI_SCSI_STATUS_CONDITION_MET:
492 desc1 = "condition met";
493 break;
494 case MPI_SCSI_STATUS_BUSY:
495 desc1 = "busy";
496 break;
497 case MPI_SCSI_STATUS_INTERMEDIATE:
498 desc1 = "intermediate";
499 break;
500 case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET:
501 desc1 = "intermediate condmet";
502 break;
503 case MPI_SCSI_STATUS_RESERVATION_CONFLICT:
504 desc1 = "reservation conflict";
505 break;
506 case MPI_SCSI_STATUS_COMMAND_TERMINATED:
507 desc1 = "command terminated";
508 break;
509 case MPI_SCSI_STATUS_TASK_SET_FULL:
510 desc1 = "task set full";
511 break;
512 case MPI_SCSI_STATUS_ACA_ACTIVE:
513 desc1 = "aca active";
514 break;
515 case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT:
516 desc1 = "fcpext device logged out";
517 break;
518 case MPI_SCSI_STATUS_FCPEXT_NO_LINK:
519 desc1 = "fcpext no link";
520 break;
521 case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED:
522 desc1 = "fcpext unassigned";
523 break;
524 default:
525 desc1 = "";
526 break;
527 }
528
529 scsi_print_command(sc);
530 printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d\n",
531 ioc->name, pScsiReply->Bus, pScsiReply->TargetID);
532 printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
533 "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
534 scsi_get_resid(sc));
535 printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, "
536 "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag),
537 le32_to_cpu(pScsiReply->TransferCount), sc->result);
538 printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), "
539 "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
540 ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus,
541 pScsiReply->SCSIState);
542
543 if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
544 skey = sc->sense_buffer[2] & 0x0F;
545 asc = sc->sense_buffer[12];
546 ascq = sc->sense_buffer[13];
547
548 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: "
549 "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq);
550 }
551
552 /*
553 * Look for + dump FCP ResponseInfo[]!
554 */
555 if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
556 pScsiReply->ResponseInfo)
557 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n",
558 ioc->name, le32_to_cpu(pScsiReply->ResponseInfo));
559 }
560 #endif
561
562 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
563 /*
564 * mptscsih_io_done - Main SCSI IO callback routine registered to
565 * Fusion MPT (base) driver
566 * @ioc: Pointer to MPT_ADAPTER structure
567 * @mf: Pointer to original MPT request frame
568 * @r: Pointer to MPT reply frame (NULL if TurboReply)
569 *
570 * This routine is called from mpt.c::mpt_interrupt() at the completion
571 * of any SCSI IO request.
572 * This routine is registered with the Fusion MPT (base) driver at driver
573 * load/init time via the mpt_register() API call.
574 *
575 * Returns 1 indicating alloc'd request frame ptr should be freed.
576 */
577 int
578 mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
579 {
580 struct scsi_cmnd *sc;
581 MPT_SCSI_HOST *hd;
582 SCSIIORequest_t *pScsiReq;
583 SCSIIOReply_t *pScsiReply;
584 u16 req_idx, req_idx_MR;
585 VirtDevice *vdevice;
586 VirtTarget *vtarget;
587
588 hd = shost_priv(ioc->sh);
589 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
590 req_idx_MR = (mr != NULL) ?
591 le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
592 if ((req_idx != req_idx_MR) ||
593 (mf->u.frame.linkage.arg1 == 0xdeadbeaf)) {
594 printk(MYIOC_s_ERR_FMT "Received a mf that was already freed\n",
595 ioc->name);
596 printk (MYIOC_s_ERR_FMT
597 "req_idx=%x req_idx_MR=%x mf=%p mr=%p sc=%p\n",
598 ioc->name, req_idx, req_idx_MR, mf, mr,
599 mptscsih_get_scsi_lookup(ioc, req_idx_MR));
600 return 0;
601 }
602
603 sc = mptscsih_getclear_scsi_lookup(ioc, req_idx);
604 if (sc == NULL) {
605 MPIHeader_t *hdr = (MPIHeader_t *)mf;
606
607 /* Remark: writeSDP1 will use the ScsiDoneCtx
608 * If a SCSI I/O cmd, device disabled by OS and
609 * completion done. Cannot touch sc struct. Just free mem.
610 */
611 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST)
612 printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n",
613 ioc->name);
614
615 mptscsih_freeChainBuffers(ioc, req_idx);
616 return 1;
617 }
618
619 if ((unsigned char *)mf != sc->host_scribble) {
620 mptscsih_freeChainBuffers(ioc, req_idx);
621 return 1;
622 }
623
624 sc->host_scribble = NULL;
625 sc->result = DID_OK << 16; /* Set default reply as OK */
626 pScsiReq = (SCSIIORequest_t *) mf;
627 pScsiReply = (SCSIIOReply_t *) mr;
628
629 if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
630 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
631 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n",
632 ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag));
633 }else{
634 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
635 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
636 ioc->name, mf, mr, sc, req_idx));
637 }
638
639 if (pScsiReply == NULL) {
640 /* special context reply handling */
641 ;
642 } else {
643 u32 xfer_cnt;
644 u16 status;
645 u8 scsi_state, scsi_status;
646 u32 log_info;
647
648 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
649 scsi_state = pScsiReply->SCSIState;
650 scsi_status = pScsiReply->SCSIStatus;
651 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
652 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
653 log_info = le32_to_cpu(pScsiReply->IOCLogInfo);
654
655 /*
656 * if we get a data underrun indication, yet no data was
657 * transferred and the SCSI status indicates that the
658 * command was never started, change the data underrun
659 * to success
660 */
661 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
662 (scsi_status == MPI_SCSI_STATUS_BUSY ||
663 scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT ||
664 scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) {
665 status = MPI_IOCSTATUS_SUCCESS;
666 }
667
668 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
669 mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);
670
671 /*
672 * Look for + dump FCP ResponseInfo[]!
673 */
674 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
675 pScsiReply->ResponseInfo) {
676 printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%d] "
677 "FCP_ResponseInfo=%08xh\n", ioc->name,
678 sc->device->host->host_no, sc->device->channel,
679 sc->device->id, sc->device->lun,
680 le32_to_cpu(pScsiReply->ResponseInfo));
681 }
682
683 switch(status) {
684 case MPI_IOCSTATUS_BUSY: /* 0x0002 */
685 /* CHECKME!
686 * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry)
687 * But not: DID_BUS_BUSY lest one risk
688 * killing interrupt handler:-(
689 */
690 sc->result = SAM_STAT_BUSY;
691 break;
692
693 case MPI_IOCSTATUS_SCSI_INVALID_BUS: /* 0x0041 */
694 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID: /* 0x0042 */
695 sc->result = DID_BAD_TARGET << 16;
696 break;
697
698 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
699 /* Spoof to SCSI Selection Timeout! */
700 if (ioc->bus_type != FC)
701 sc->result = DID_NO_CONNECT << 16;
702 /* else fibre, just stall until rescan event */
703 else
704 sc->result = DID_REQUEUE << 16;
705
706 if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
707 hd->sel_timeout[pScsiReq->TargetID]++;
708
709 vdevice = sc->device->hostdata;
710 if (!vdevice)
711 break;
712 vtarget = vdevice->vtarget;
713 if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) {
714 mptscsih_issue_sep_command(ioc, vtarget,
715 MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED);
716 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON;
717 }
718 break;
719
720 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
721 if ( ioc->bus_type == SAS ) {
722 u16 ioc_status = le16_to_cpu(pScsiReply->IOCStatus);
723 if (ioc_status & MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) {
724 if ((log_info & SAS_LOGINFO_MASK)
725 == SAS_LOGINFO_NEXUS_LOSS) {
726 sc->result = (DID_BUS_BUSY << 16);
727 break;
728 }
729 }
730 } else if (ioc->bus_type == FC) {
731 /*
732 * The FC IOC may kill a request for variety of
733 * reasons, some of which may be recovered by a
734 * retry, some which are unlikely to be
735 * recovered. Return DID_ERROR instead of
736 * DID_RESET to permit retry of the command,
737 * just not an infinite number of them
738 */
739 sc->result = DID_ERROR << 16;
740 break;
741 }
742
743 /*
744 * Allow non-SAS & non-NEXUS_LOSS to drop into below code
745 */
746
747 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
748 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
749 /* Linux handles an unsolicited DID_RESET better
750 * than an unsolicited DID_ABORT.
751 */
752 sc->result = DID_RESET << 16;
753
754 break;
755
756 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: /* 0x0049 */
757 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
758 if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
759 sc->result=DID_SOFT_ERROR << 16;
760 else /* Sufficient data transfer occurred */
761 sc->result = (DID_OK << 16) | scsi_status;
762 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
763 "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
764 ioc->name, sc->result, sc->device->channel, sc->device->id));
765 break;
766
767 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
768 /*
769 * Do upfront check for valid SenseData and give it
770 * precedence!
771 */
772 sc->result = (DID_OK << 16) | scsi_status;
773 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) {
774 /* Have already saved the status and sense data
775 */
776 ;
777 } else {
778 if (xfer_cnt < sc->underflow) {
779 if (scsi_status == SAM_STAT_BUSY)
780 sc->result = SAM_STAT_BUSY;
781 else
782 sc->result = DID_SOFT_ERROR << 16;
783 }
784 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
785 /* What to do?
786 */
787 sc->result = DID_SOFT_ERROR << 16;
788 }
789 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
790 /* Not real sure here either... */
791 sc->result = DID_RESET << 16;
792 }
793 }
794
795
796 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
797 " sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
798 ioc->name, sc->underflow));
799 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
800 " ActBytesXferd=%02xh\n", ioc->name, xfer_cnt));
801
802 /* Report Queue Full
803 */
804 if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
805 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
806
807 break;
808
809 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: /* 0x0044 */
810 scsi_set_resid(sc, 0);
811 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
812 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
813 sc->result = (DID_OK << 16) | scsi_status;
814 if (scsi_state == 0) {
815 ;
816 } else if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) {
817 /*
818 * If running against circa 200003dd 909 MPT f/w,
819 * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
820 * (QUEUE_FULL) returned from device! --> get 0x0000?128
821 * and with SenseBytes set to 0.
822 */
823 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
824 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
825
826 }
827 else if (scsi_state &
828 (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
829 ) {
830 /*
831 * What to do?
832 */
833 sc->result = DID_SOFT_ERROR << 16;
834 }
835 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
836 /* Not real sure here either... */
837 sc->result = DID_RESET << 16;
838 }
839 else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
840 /* Device Inq. data indicates that it supports
841 * QTags, but rejects QTag messages.
842 * This command completed OK.
843 *
844 * Not real sure here either so do nothing... */
845 }
846
847 if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
848 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
849
850 /* Add handling of:
851 * Reservation Conflict, Busy,
852 * Command Terminated, CHECK
853 */
854 break;
855
856 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
857 sc->result = DID_SOFT_ERROR << 16;
858 break;
859
860 case MPI_IOCSTATUS_INVALID_FUNCTION: /* 0x0001 */
861 case MPI_IOCSTATUS_INVALID_SGL: /* 0x0003 */
862 case MPI_IOCSTATUS_INTERNAL_ERROR: /* 0x0004 */
863 case MPI_IOCSTATUS_RESERVED: /* 0x0005 */
864 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES: /* 0x0006 */
865 case MPI_IOCSTATUS_INVALID_FIELD: /* 0x0007 */
866 case MPI_IOCSTATUS_INVALID_STATE: /* 0x0008 */
867 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
868 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED: /* 0x004A */
869 default:
870 /*
871 * What to do?
872 */
873 sc->result = DID_SOFT_ERROR << 16;
874 break;
875
876 } /* switch(status) */
877
878 #ifdef CONFIG_FUSION_LOGGING
879 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
880 mptscsih_info_scsiio(ioc, sc, pScsiReply);
881 #endif
882
883 } /* end of address reply case */
884
885 /* Unmap the DMA buffers, if any. */
886 scsi_dma_unmap(sc);
887
888 sc->scsi_done(sc); /* Issue the command callback */
889
890 /* Free Chain buffers */
891 mptscsih_freeChainBuffers(ioc, req_idx);
892 return 1;
893 }
894
895 /*
896 * mptscsih_flush_running_cmds - For each command found, search
897 * Scsi_Host instance taskQ and reply to OS.
898 * Called only if recovering from a FW reload.
899 * @hd: Pointer to a SCSI HOST structure
900 *
901 * Returns: None.
902 *
903 * Must be called while new I/Os are being queued.
904 */
905 static void
906 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
907 {
908 MPT_ADAPTER *ioc = hd->ioc;
909 struct scsi_cmnd *sc;
910 SCSIIORequest_t *mf = NULL;
911 int ii;
912 int channel, id;
913
914 for (ii= 0; ii < ioc->req_depth; ii++) {
915 sc = mptscsih_getclear_scsi_lookup(ioc, ii);
916 if (!sc)
917 continue;
918 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
919 if (!mf)
920 continue;
921 channel = mf->Bus;
922 id = mf->TargetID;
923 mptscsih_freeChainBuffers(ioc, ii);
924 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
925 if ((unsigned char *)mf != sc->host_scribble)
926 continue;
927 scsi_dma_unmap(sc);
928 sc->result = DID_RESET << 16;
929 sc->host_scribble = NULL;
930 sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
931 "completing cmds: fw_channel %d, fw_id %d, sc=%p,"
932 " mf = %p, idx=%x\n", ioc->name, channel, id, sc, mf, ii);
933 sc->scsi_done(sc);
934 }
935 }
936
937 /*
938 * mptscsih_search_running_cmds - Delete any commands associated
939 * with the specified target and lun. Function called only
940 * when a lun is disable by mid-layer.
941 * Do NOT access the referenced scsi_cmnd structure or
942 * members. Will cause either a paging or NULL ptr error.
943 * (BUT, BUT, BUT, the code does reference it! - mdr)
944 * @hd: Pointer to a SCSI HOST structure
945 * @vdevice: per device private data
946 *
947 * Returns: None.
948 *
949 * Called from slave_destroy.
950 */
951 static void
952 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
953 {
954 SCSIIORequest_t *mf = NULL;
955 int ii;
956 struct scsi_cmnd *sc;
957 struct scsi_lun lun;
958 MPT_ADAPTER *ioc = hd->ioc;
959 unsigned long flags;
960
961 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
962 for (ii = 0; ii < ioc->req_depth; ii++) {
963 if ((sc = ioc->ScsiLookup[ii]) != NULL) {
964
965 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
966 if (mf == NULL)
967 continue;
968 /* If the device is a hidden raid component, then its
969 * expected that the mf->function will be RAID_SCSI_IO
970 */
971 if (vdevice->vtarget->tflags &
972 MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
973 MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
974 continue;
975
976 int_to_scsilun(vdevice->lun, &lun);
977 if ((mf->Bus != vdevice->vtarget->channel) ||
978 (mf->TargetID != vdevice->vtarget->id) ||
979 memcmp(lun.scsi_lun, mf->LUN, 8))
980 continue;
981
982 if ((unsigned char *)mf != sc->host_scribble)
983 continue;
984 ioc->ScsiLookup[ii] = NULL;
985 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
986 mptscsih_freeChainBuffers(ioc, ii);
987 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
988 scsi_dma_unmap(sc);
989 sc->host_scribble = NULL;
990 sc->result = DID_NO_CONNECT << 16;
991 sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT "completing cmds: fw_channel %d,"
992 "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name, vdevice->vtarget->channel,
993 vdevice->vtarget->id, sc, mf, ii);
994 sc->scsi_done(sc);
995 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
996 }
997 }
998 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
999 return;
1000 }
1001
1002 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1003
1004 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1005 /*
1006 * mptscsih_report_queue_full - Report QUEUE_FULL status returned
1007 * from a SCSI target device.
1008 * @sc: Pointer to scsi_cmnd structure
1009 * @pScsiReply: Pointer to SCSIIOReply_t
1010 * @pScsiReq: Pointer to original SCSI request
1011 *
1012 * This routine periodically reports QUEUE_FULL status returned from a
1013 * SCSI target device. It reports this to the console via kernel
1014 * printk() API call, not more than once every 10 seconds.
1015 */
1016 static void
1017 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1018 {
1019 long time = jiffies;
1020 MPT_SCSI_HOST *hd;
1021 MPT_ADAPTER *ioc;
1022
1023 if (sc->device == NULL)
1024 return;
1025 if (sc->device->host == NULL)
1026 return;
1027 if ((hd = shost_priv(sc->device->host)) == NULL)
1028 return;
1029 ioc = hd->ioc;
1030 if (time - hd->last_queue_full > 10 * HZ) {
1031 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n",
1032 ioc->name, 0, sc->device->id, sc->device->lun));
1033 hd->last_queue_full = time;
1034 }
1035 }
1036
1037 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1038 /*
1039 * mptscsih_remove - Removed scsi devices
1040 * @pdev: Pointer to pci_dev structure
1041 *
1042 *
1043 */
1044 void
1045 mptscsih_remove(struct pci_dev *pdev)
1046 {
1047 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1048 struct Scsi_Host *host = ioc->sh;
1049 MPT_SCSI_HOST *hd;
1050 int sz1;
1051
1052 if(!host) {
1053 mpt_detach(pdev);
1054 return;
1055 }
1056
1057 scsi_remove_host(host);
1058
1059 if((hd = shost_priv(host)) == NULL)
1060 return;
1061
1062 mptscsih_shutdown(pdev);
1063
1064 sz1=0;
1065
1066 if (ioc->ScsiLookup != NULL) {
1067 sz1 = ioc->req_depth * sizeof(void *);
1068 kfree(ioc->ScsiLookup);
1069 ioc->ScsiLookup = NULL;
1070 }
1071
1072 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1073 "Free'd ScsiLookup (%d) memory\n",
1074 ioc->name, sz1));
1075
1076 kfree(hd->info_kbuf);
1077
1078 /* NULL the Scsi_Host pointer
1079 */
1080 ioc->sh = NULL;
1081
1082 scsi_host_put(host);
1083
1084 mpt_detach(pdev);
1085
1086 }
1087
1088 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1089 /*
1090 * mptscsih_shutdown - reboot notifier
1091 *
1092 */
1093 void
1094 mptscsih_shutdown(struct pci_dev *pdev)
1095 {
1096 }
1097
1098 #ifdef CONFIG_PM
1099 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1100 /*
1101 * mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1102 *
1103 *
1104 */
1105 int
1106 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1107 {
1108 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1109
1110 scsi_block_requests(ioc->sh);
1111 flush_scheduled_work();
1112 mptscsih_shutdown(pdev);
1113 return mpt_suspend(pdev,state);
1114 }
1115
1116 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1117 /*
1118 * mptscsih_resume - Fusion MPT scsi driver resume routine.
1119 *
1120 *
1121 */
1122 int
1123 mptscsih_resume(struct pci_dev *pdev)
1124 {
1125 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1126 int rc;
1127
1128 rc = mpt_resume(pdev);
1129 scsi_unblock_requests(ioc->sh);
1130 return rc;
1131 }
1132
1133 #endif
1134
1135 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1136 /**
1137 * mptscsih_info - Return information about MPT adapter
1138 * @SChost: Pointer to Scsi_Host structure
1139 *
1140 * (linux scsi_host_template.info routine)
1141 *
1142 * Returns pointer to buffer where information was written.
1143 */
1144 const char *
1145 mptscsih_info(struct Scsi_Host *SChost)
1146 {
1147 MPT_SCSI_HOST *h;
1148 int size = 0;
1149
1150 h = shost_priv(SChost);
1151
1152 if (h) {
1153 if (h->info_kbuf == NULL)
1154 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1155 return h->info_kbuf;
1156 h->info_kbuf[0] = '\0';
1157
1158 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1159 h->info_kbuf[size-1] = '\0';
1160 }
1161
1162 return h->info_kbuf;
1163 }
1164
1165 struct info_str {
1166 char *buffer;
1167 int length;
1168 int offset;
1169 int pos;
1170 };
1171
1172 static void
1173 mptscsih_copy_mem_info(struct info_str *info, char *data, int len)
1174 {
1175 if (info->pos + len > info->length)
1176 len = info->length - info->pos;
1177
1178 if (info->pos + len < info->offset) {
1179 info->pos += len;
1180 return;
1181 }
1182
1183 if (info->pos < info->offset) {
1184 data += (info->offset - info->pos);
1185 len -= (info->offset - info->pos);
1186 }
1187
1188 if (len > 0) {
1189 memcpy(info->buffer + info->pos, data, len);
1190 info->pos += len;
1191 }
1192 }
1193
1194 static int
1195 mptscsih_copy_info(struct info_str *info, char *fmt, ...)
1196 {
1197 va_list args;
1198 char buf[81];
1199 int len;
1200
1201 va_start(args, fmt);
1202 len = vsprintf(buf, fmt, args);
1203 va_end(args);
1204
1205 mptscsih_copy_mem_info(info, buf, len);
1206 return len;
1207 }
1208
1209 static int
1210 mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len)
1211 {
1212 struct info_str info;
1213
1214 info.buffer = pbuf;
1215 info.length = len;
1216 info.offset = offset;
1217 info.pos = 0;
1218
1219 mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name);
1220 mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1221 mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts);
1222 mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth);
1223
1224 return ((info.pos > info.offset) ? info.pos - info.offset : 0);
1225 }
1226
1227 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1228 /**
1229 * mptscsih_proc_info - Return information about MPT adapter
1230 * @host: scsi host struct
1231 * @buffer: if write, user data; if read, buffer for user
1232 * @start: returns the buffer address
1233 * @offset: if write, 0; if read, the current offset into the buffer from
1234 * the previous read.
1235 * @length: if write, return length;
1236 * @func: write = 1; read = 0
1237 *
1238 * (linux scsi_host_template.info routine)
1239 */
1240 int
1241 mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
1242 int length, int func)
1243 {
1244 MPT_SCSI_HOST *hd = shost_priv(host);
1245 MPT_ADAPTER *ioc = hd->ioc;
1246 int size = 0;
1247
1248 if (func) {
1249 /*
1250 * write is not supported
1251 */
1252 } else {
1253 if (start)
1254 *start = buffer;
1255
1256 size = mptscsih_host_info(ioc, buffer, offset, length);
1257 }
1258
1259 return size;
1260 }
1261
1262 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1263 #define ADD_INDEX_LOG(req_ent) do { } while(0)
1264
1265 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1266 /**
1267 * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1268 * @SCpnt: Pointer to scsi_cmnd structure
1269 * @done: Pointer SCSI mid-layer IO completion function
1270 *
1271 * (linux scsi_host_template.queuecommand routine)
1272 * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest
1273 * from a linux scsi_cmnd request and send it to the IOC.
1274 *
1275 * Returns 0. (rtn value discarded by linux scsi mid-layer)
1276 */
1277 int
1278 mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1279 {
1280 MPT_SCSI_HOST *hd;
1281 MPT_FRAME_HDR *mf;
1282 SCSIIORequest_t *pScsiReq;
1283 VirtDevice *vdevice = SCpnt->device->hostdata;
1284 int lun;
1285 u32 datalen;
1286 u32 scsictl;
1287 u32 scsidir;
1288 u32 cmd_len;
1289 int my_idx;
1290 int ii;
1291 MPT_ADAPTER *ioc;
1292
1293 hd = shost_priv(SCpnt->device->host);
1294 ioc = hd->ioc;
1295 lun = SCpnt->device->lun;
1296 SCpnt->scsi_done = done;
1297
1298 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
1299 ioc->name, SCpnt, done));
1300
1301 if (hd->resetPending) {
1302 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT "qcmd: SCpnt=%p timeout + 60HZ\n",
1303 ioc->name, SCpnt));
1304 return SCSI_MLQUEUE_HOST_BUSY;
1305 }
1306
1307 /*
1308 * Put together a MPT SCSI request...
1309 */
1310 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1311 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1312 ioc->name));
1313 return SCSI_MLQUEUE_HOST_BUSY;
1314 }
1315
1316 pScsiReq = (SCSIIORequest_t *) mf;
1317
1318 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1319
1320 ADD_INDEX_LOG(my_idx);
1321
1322 /* TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1323 * Seems we may receive a buffer (datalen>0) even when there
1324 * will be no data transfer! GRRRRR...
1325 */
1326 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1327 datalen = scsi_bufflen(SCpnt);
1328 scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */
1329 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1330 datalen = scsi_bufflen(SCpnt);
1331 scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */
1332 } else {
1333 datalen = 0;
1334 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1335 }
1336
1337 /* Default to untagged. Once a target structure has been allocated,
1338 * use the Inquiry data to determine if device supports tagged.
1339 */
1340 if (vdevice
1341 && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1342 && (SCpnt->device->tagged_supported)) {
1343 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1344 } else {
1345 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1346 }
1347
1348 /* Use the above information to set up the message frame
1349 */
1350 pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1351 pScsiReq->Bus = vdevice->vtarget->channel;
1352 pScsiReq->ChainOffset = 0;
1353 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
1354 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1355 else
1356 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1357 pScsiReq->CDBLength = SCpnt->cmd_len;
1358 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1359 pScsiReq->Reserved = 0;
1360 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1361 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1362 pScsiReq->Control = cpu_to_le32(scsictl);
1363
1364 /*
1365 * Write SCSI CDB into the message
1366 */
1367 cmd_len = SCpnt->cmd_len;
1368 for (ii=0; ii < cmd_len; ii++)
1369 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1370
1371 for (ii=cmd_len; ii < 16; ii++)
1372 pScsiReq->CDB[ii] = 0;
1373
1374 /* DataLength */
1375 pScsiReq->DataLength = cpu_to_le32(datalen);
1376
1377 /* SenseBuffer low address */
1378 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1379 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1380
1381 /* Now add the SG list
1382 * Always have a SGE even if null length.
1383 */
1384 if (datalen == 0) {
1385 /* Add a NULL SGE */
1386 ioc->add_sge((char *)&pScsiReq->SGL,
1387 MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1388 (dma_addr_t) -1);
1389 } else {
1390 /* Add a 32 or 64 bit SGE */
1391 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1392 goto fail;
1393 }
1394
1395 SCpnt->host_scribble = (unsigned char *)mf;
1396 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1397
1398 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1399 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1400 ioc->name, SCpnt, mf, my_idx));
1401 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1402 return 0;
1403
1404 fail:
1405 mptscsih_freeChainBuffers(ioc, my_idx);
1406 mpt_free_msg_frame(ioc, mf);
1407 return SCSI_MLQUEUE_HOST_BUSY;
1408 }
1409
1410 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1411 /*
1412 * mptscsih_freeChainBuffers - Function to free chain buffers associated
1413 * with a SCSI IO request
1414 * @hd: Pointer to the MPT_SCSI_HOST instance
1415 * @req_idx: Index of the SCSI IO request frame.
1416 *
1417 * Called if SG chain buffer allocation fails and mptscsih callbacks.
1418 * No return.
1419 */
1420 static void
1421 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1422 {
1423 MPT_FRAME_HDR *chain;
1424 unsigned long flags;
1425 int chain_idx;
1426 int next;
1427
1428 /* Get the first chain index and reset
1429 * tracker state.
1430 */
1431 chain_idx = ioc->ReqToChain[req_idx];
1432 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1433
1434 while (chain_idx != MPT_HOST_NO_CHAIN) {
1435
1436 /* Save the next chain buffer index */
1437 next = ioc->ChainToChain[chain_idx];
1438
1439 /* Free this chain buffer and reset
1440 * tracker
1441 */
1442 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1443
1444 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1445 + (chain_idx * ioc->req_sz));
1446
1447 spin_lock_irqsave(&ioc->FreeQlock, flags);
1448 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1449 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1450
1451 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1452 ioc->name, chain_idx));
1453
1454 /* handle next */
1455 chain_idx = next;
1456 }
1457 return;
1458 }
1459
1460 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1461 /*
1462 * Reset Handling
1463 */
1464
1465 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1466 /**
1467 * mptscsih_TMHandler - Generic handler for SCSI Task Management.
1468 * @hd: Pointer to MPT SCSI HOST structure
1469 * @type: Task Management type
1470 * @channel: channel number for task management
1471 * @id: Logical Target ID for reset (if appropriate)
1472 * @lun: Logical Unit for reset (if appropriate)
1473 * @ctx2abort: Context for the task to be aborted (if appropriate)
1474 * @timeout: timeout for task management control
1475 *
1476 * Fall through to mpt_HardResetHandler if: not operational, too many
1477 * failed TM requests or handshake failure.
1478 *
1479 * Remark: Currently invoked from a non-interrupt thread (_bh).
1480 *
1481 * Note: With old EH code, at most 1 SCSI TaskMgmt function per IOC
1482 * will be active.
1483 *
1484 * Returns 0 for SUCCESS, or %FAILED.
1485 **/
1486 int
1487 mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1488 {
1489 MPT_ADAPTER *ioc;
1490 int rc = -1;
1491 u32 ioc_raw_state;
1492 unsigned long flags;
1493
1494 ioc = hd->ioc;
1495 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler Entered!\n", ioc->name));
1496
1497 // SJR - CHECKME - Can we avoid this here?
1498 // (mpt_HardResetHandler has this check...)
1499 spin_lock_irqsave(&ioc->diagLock, flags);
1500 if ((ioc->diagPending) || (ioc->alt_ioc && ioc->alt_ioc->diagPending)) {
1501 spin_unlock_irqrestore(&ioc->diagLock, flags);
1502 return FAILED;
1503 }
1504 spin_unlock_irqrestore(&ioc->diagLock, flags);
1505
1506 /* Wait a fixed amount of time for the TM pending flag to be cleared.
1507 * If we time out and not bus reset, then we return a FAILED status
1508 * to the caller.
1509 * The call to mptscsih_tm_pending_wait() will set the pending flag
1510 * if we are
1511 * successful. Otherwise, reload the FW.
1512 */
1513 if (mptscsih_tm_pending_wait(hd) == FAILED) {
1514 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1515 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler abort: "
1516 "Timed out waiting for last TM (%d) to complete! \n",
1517 ioc->name, hd->tmPending));
1518 return FAILED;
1519 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET) {
1520 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler target "
1521 "reset: Timed out waiting for last TM (%d) "
1522 "to complete! \n", ioc->name,
1523 hd->tmPending));
1524 return FAILED;
1525 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) {
1526 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler bus reset: "
1527 "Timed out waiting for last TM (%d) to complete! \n",
1528 ioc->name, hd->tmPending));
1529 return FAILED;
1530 }
1531 } else {
1532 spin_lock_irqsave(&ioc->FreeQlock, flags);
1533 hd->tmPending |= (1 << type);
1534 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1535 }
1536
1537 ioc_raw_state = mpt_GetIocState(ioc, 0);
1538
1539 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1540 printk(MYIOC_s_WARN_FMT
1541 "TM Handler for type=%x: IOC Not operational (0x%x)!\n",
1542 ioc->name, type, ioc_raw_state);
1543 printk(MYIOC_s_WARN_FMT " Issuing HardReset!!\n", ioc->name);
1544 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1545 printk(MYIOC_s_WARN_FMT "TMHandler: HardReset "
1546 "FAILED!!\n", ioc->name);
1547 return FAILED;
1548 }
1549
1550 if (ioc_raw_state & MPI_DOORBELL_ACTIVE) {
1551 printk(MYIOC_s_WARN_FMT
1552 "TM Handler for type=%x: ioc_state: "
1553 "DOORBELL_ACTIVE (0x%x)!\n",
1554 ioc->name, type, ioc_raw_state);
1555 return FAILED;
1556 }
1557
1558 /* Isse the Task Mgmt request.
1559 */
1560 if (hd->hard_resets < -1)
1561 hd->hard_resets++;
1562
1563 rc = mptscsih_IssueTaskMgmt(hd, type, channel, id, lun,
1564 ctx2abort, timeout);
1565 if (rc)
1566 printk(MYIOC_s_INFO_FMT "Issue of TaskMgmt failed!\n",
1567 ioc->name);
1568 else
1569 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issue of TaskMgmt Successful!\n",
1570 ioc->name));
1571
1572 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1573 "TMHandler rc = %d!\n", ioc->name, rc));
1574
1575 return rc;
1576 }
1577
1578
1579 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1580 /**
1581 * mptscsih_IssueTaskMgmt - Generic send Task Management function.
1582 * @hd: Pointer to MPT_SCSI_HOST structure
1583 * @type: Task Management type
1584 * @channel: channel number for task management
1585 * @id: Logical Target ID for reset (if appropriate)
1586 * @lun: Logical Unit for reset (if appropriate)
1587 * @ctx2abort: Context for the task to be aborted (if appropriate)
1588 * @timeout: timeout for task management control
1589 *
1590 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1591 * or a non-interrupt thread. In the former, must not call schedule().
1592 *
1593 * Not all fields are meaningfull for all task types.
1594 *
1595 * Returns 0 for SUCCESS, or FAILED.
1596 *
1597 **/
1598 static int
1599 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1600 {
1601 MPT_FRAME_HDR *mf;
1602 SCSITaskMgmt_t *pScsiTm;
1603 int ii;
1604 int retval;
1605 MPT_ADAPTER *ioc = hd->ioc;
1606
1607 /* Return Fail to calling function if no message frames available.
1608 */
1609 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1610 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "IssueTaskMgmt, no msg frames!!\n",
1611 ioc->name));
1612 return FAILED;
1613 }
1614 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "IssueTaskMgmt request @ %p\n",
1615 ioc->name, mf));
1616
1617 /* Format the Request
1618 */
1619 pScsiTm = (SCSITaskMgmt_t *) mf;
1620 pScsiTm->TargetID = id;
1621 pScsiTm->Bus = channel;
1622 pScsiTm->ChainOffset = 0;
1623 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1624
1625 pScsiTm->Reserved = 0;
1626 pScsiTm->TaskType = type;
1627 pScsiTm->Reserved1 = 0;
1628 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1629 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1630
1631 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1632
1633 for (ii=0; ii < 7; ii++)
1634 pScsiTm->Reserved2[ii] = 0;
1635
1636 pScsiTm->TaskMsgContext = ctx2abort;
1637
1638 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "IssueTaskMgmt: ctx2abort (0x%08x) "
1639 "type=%d\n", ioc->name, ctx2abort, type));
1640
1641 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1642
1643 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1644 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1645 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1646 else {
1647 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1648 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1649 if (retval) {
1650 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "send_handshake FAILED!"
1651 " (hd %p, ioc %p, mf %p, rc=%d) \n", ioc->name, hd,
1652 ioc, mf, retval));
1653 goto fail_out;
1654 }
1655 }
1656
1657 if(mptscsih_tm_wait_for_completion(hd, timeout) == FAILED) {
1658 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "task management request TIMED OUT!"
1659 " (hd %p, ioc %p, mf %p) \n", ioc->name, hd,
1660 ioc, mf));
1661 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Calling HardReset! \n",
1662 ioc->name));
1663 retval = mpt_HardResetHandler(ioc, CAN_SLEEP);
1664 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rc=%d \n",
1665 ioc->name, retval));
1666 goto fail_out;
1667 }
1668
1669 /*
1670 * Handle success case, see if theres a non-zero ioc_status.
1671 */
1672 if (hd->tm_iocstatus == MPI_IOCSTATUS_SUCCESS ||
1673 hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
1674 hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
1675 retval = 0;
1676 else
1677 retval = FAILED;
1678
1679 return retval;
1680
1681 fail_out:
1682
1683 /*
1684 * Free task management mf, and corresponding tm flags
1685 */
1686 mpt_free_msg_frame(ioc, mf);
1687 hd->tmPending = 0;
1688 hd->tmState = TM_STATE_NONE;
1689 return FAILED;
1690 }
1691
1692 static int
1693 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1694 {
1695 switch (ioc->bus_type) {
1696 case FC:
1697 return 40;
1698 case SAS:
1699 case SPI:
1700 default:
1701 return 10;
1702 }
1703 }
1704
1705 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1706 /**
1707 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1708 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1709 *
1710 * (linux scsi_host_template.eh_abort_handler routine)
1711 *
1712 * Returns SUCCESS or FAILED.
1713 **/
1714 int
1715 mptscsih_abort(struct scsi_cmnd * SCpnt)
1716 {
1717 MPT_SCSI_HOST *hd;
1718 MPT_FRAME_HDR *mf;
1719 u32 ctx2abort;
1720 int scpnt_idx;
1721 int retval;
1722 VirtDevice *vdevice;
1723 ulong sn = SCpnt->serial_number;
1724 MPT_ADAPTER *ioc;
1725
1726 /* If we can't locate our host adapter structure, return FAILED status.
1727 */
1728 if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1729 SCpnt->result = DID_RESET << 16;
1730 SCpnt->scsi_done(SCpnt);
1731 printk(KERN_ERR MYNAM ": task abort: "
1732 "can't locate host! (sc=%p)\n", SCpnt);
1733 return FAILED;
1734 }
1735
1736 ioc = hd->ioc;
1737 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1738 ioc->name, SCpnt);
1739 scsi_print_command(SCpnt);
1740
1741 vdevice = SCpnt->device->hostdata;
1742 if (!vdevice || !vdevice->vtarget) {
1743 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1744 "task abort: device has been deleted (sc=%p)\n",
1745 ioc->name, SCpnt));
1746 SCpnt->result = DID_NO_CONNECT << 16;
1747 SCpnt->scsi_done(SCpnt);
1748 retval = 0;
1749 goto out;
1750 }
1751
1752 /* Task aborts are not supported for hidden raid components.
1753 */
1754 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1755 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1756 "task abort: hidden raid component (sc=%p)\n",
1757 ioc->name, SCpnt));
1758 SCpnt->result = DID_RESET << 16;
1759 retval = FAILED;
1760 goto out;
1761 }
1762
1763 /* Find this command
1764 */
1765 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1766 /* Cmd not found in ScsiLookup.
1767 * Do OS callback.
1768 */
1769 SCpnt->result = DID_RESET << 16;
1770 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1771 "Command not in the active list! (sc=%p)\n", ioc->name,
1772 SCpnt));
1773 retval = 0;
1774 goto out;
1775 }
1776
1777 if (hd->resetPending) {
1778 retval = FAILED;
1779 goto out;
1780 }
1781
1782 if (hd->timeouts < -1)
1783 hd->timeouts++;
1784
1785 if (mpt_fwfault_debug)
1786 mpt_halt_firmware(ioc);
1787
1788 /* Most important! Set TaskMsgContext to SCpnt's MsgContext!
1789 * (the IO to be ABORT'd)
1790 *
1791 * NOTE: Since we do not byteswap MsgContext, we do not
1792 * swap it here either. It is an opaque cookie to
1793 * the controller, so it does not matter. -DaveM
1794 */
1795 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1796 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1797
1798 hd->abortSCpnt = SCpnt;
1799
1800 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1801 vdevice->vtarget->channel, vdevice->vtarget->id, vdevice->lun,
1802 ctx2abort, mptscsih_get_tm_timeout(ioc));
1803
1804 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx &&
1805 SCpnt->serial_number == sn)
1806 retval = FAILED;
1807
1808 out:
1809 printk(MYIOC_s_INFO_FMT "task abort: %s (sc=%p)\n",
1810 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1811
1812 if (retval == 0)
1813 return SUCCESS;
1814 else
1815 return FAILED;
1816 }
1817
1818 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1819 /**
1820 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant
1821 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1822 *
1823 * (linux scsi_host_template.eh_dev_reset_handler routine)
1824 *
1825 * Returns SUCCESS or FAILED.
1826 **/
1827 int
1828 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1829 {
1830 MPT_SCSI_HOST *hd;
1831 int retval;
1832 VirtDevice *vdevice;
1833 MPT_ADAPTER *ioc;
1834
1835 /* If we can't locate our host adapter structure, return FAILED status.
1836 */
1837 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1838 printk(KERN_ERR MYNAM ": target reset: "
1839 "Can't locate host! (sc=%p)\n", SCpnt);
1840 return FAILED;
1841 }
1842
1843 ioc = hd->ioc;
1844 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1845 ioc->name, SCpnt);
1846 scsi_print_command(SCpnt);
1847
1848 if (hd->resetPending) {
1849 retval = FAILED;
1850 goto out;
1851 }
1852
1853 vdevice = SCpnt->device->hostdata;
1854 if (!vdevice || !vdevice->vtarget) {
1855 retval = 0;
1856 goto out;
1857 }
1858
1859 /* Target reset to hidden raid component is not supported
1860 */
1861 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1862 retval = FAILED;
1863 goto out;
1864 }
1865
1866 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1867 vdevice->vtarget->channel, vdevice->vtarget->id, 0, 0,
1868 mptscsih_get_tm_timeout(ioc));
1869
1870 out:
1871 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1872 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1873
1874 if (retval == 0)
1875 return SUCCESS;
1876 else
1877 return FAILED;
1878 }
1879
1880
1881 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1882 /**
1883 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant
1884 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1885 *
1886 * (linux scsi_host_template.eh_bus_reset_handler routine)
1887 *
1888 * Returns SUCCESS or FAILED.
1889 **/
1890 int
1891 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1892 {
1893 MPT_SCSI_HOST *hd;
1894 int retval;
1895 VirtDevice *vdevice;
1896 MPT_ADAPTER *ioc;
1897
1898 /* If we can't locate our host adapter structure, return FAILED status.
1899 */
1900 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1901 printk(KERN_ERR MYNAM ": bus reset: "
1902 "Can't locate host! (sc=%p)\n", SCpnt);
1903 return FAILED;
1904 }
1905
1906 ioc = hd->ioc;
1907 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1908 ioc->name, SCpnt);
1909 scsi_print_command(SCpnt);
1910
1911 if (hd->timeouts < -1)
1912 hd->timeouts++;
1913
1914 vdevice = SCpnt->device->hostdata;
1915 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1916 vdevice->vtarget->channel, 0, 0, 0, mptscsih_get_tm_timeout(ioc));
1917
1918 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1919 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1920
1921 if (retval == 0)
1922 return SUCCESS;
1923 else
1924 return FAILED;
1925 }
1926
1927 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1928 /**
1929 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1930 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1931 *
1932 * (linux scsi_host_template.eh_host_reset_handler routine)
1933 *
1934 * Returns SUCCESS or FAILED.
1935 */
1936 int
1937 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1938 {
1939 MPT_SCSI_HOST * hd;
1940 int retval;
1941 MPT_ADAPTER *ioc;
1942
1943 /* If we can't locate the host to reset, then we failed. */
1944 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1945 printk(KERN_ERR MYNAM ": host reset: "
1946 "Can't locate host! (sc=%p)\n", SCpnt);
1947 return FAILED;
1948 }
1949
1950 /* make sure we have no outstanding commands at this stage */
1951 mptscsih_flush_running_cmds(hd);
1952
1953 ioc = hd->ioc;
1954 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
1955 ioc->name, SCpnt);
1956
1957 /* If our attempts to reset the host failed, then return a failed
1958 * status. The host will be taken off line by the SCSI mid-layer.
1959 */
1960 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0) {
1961 retval = FAILED;
1962 } else {
1963 /* Make sure TM pending is cleared and TM state is set to
1964 * NONE.
1965 */
1966 retval = 0;
1967 hd->tmPending = 0;
1968 hd->tmState = TM_STATE_NONE;
1969 }
1970
1971 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
1972 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1973
1974 return retval;
1975 }
1976
1977 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1978 /**
1979 * mptscsih_tm_pending_wait - wait for pending task management request to complete
1980 * @hd: Pointer to MPT host structure.
1981 *
1982 * Returns {SUCCESS,FAILED}.
1983 */
1984 static int
1985 mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd)
1986 {
1987 unsigned long flags;
1988 int loop_count = 4 * 10; /* Wait 10 seconds */
1989 int status = FAILED;
1990 MPT_ADAPTER *ioc = hd->ioc;
1991
1992 do {
1993 spin_lock_irqsave(&ioc->FreeQlock, flags);
1994 if (hd->tmState == TM_STATE_NONE) {
1995 hd->tmState = TM_STATE_IN_PROGRESS;
1996 hd->tmPending = 1;
1997 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1998 status = SUCCESS;
1999 break;
2000 }
2001 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2002 msleep(250);
2003 } while (--loop_count);
2004
2005 return status;
2006 }
2007
2008 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2009 /**
2010 * mptscsih_tm_wait_for_completion - wait for completion of TM task
2011 * @hd: Pointer to MPT host structure.
2012 * @timeout: timeout value
2013 *
2014 * Returns {SUCCESS,FAILED}.
2015 */
2016 static int
2017 mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout )
2018 {
2019 unsigned long flags;
2020 int loop_count = 4 * timeout;
2021 int status = FAILED;
2022 MPT_ADAPTER *ioc = hd->ioc;
2023
2024 do {
2025 spin_lock_irqsave(&ioc->FreeQlock, flags);
2026 if(hd->tmPending == 0) {
2027 status = SUCCESS;
2028 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2029 break;
2030 }
2031 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2032 msleep(250);
2033 } while (--loop_count);
2034
2035 return status;
2036 }
2037
2038 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2039 static void
2040 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2041 {
2042 char *desc;
2043
2044 switch (response_code) {
2045 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2046 desc = "The task completed.";
2047 break;
2048 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2049 desc = "The IOC received an invalid frame status.";
2050 break;
2051 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2052 desc = "The task type is not supported.";
2053 break;
2054 case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2055 desc = "The requested task failed.";
2056 break;
2057 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2058 desc = "The task completed successfully.";
2059 break;
2060 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2061 desc = "The LUN request is invalid.";
2062 break;
2063 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2064 desc = "The task is in the IOC queue and has not been sent to target.";
2065 break;
2066 default:
2067 desc = "unknown";
2068 break;
2069 }
2070 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2071 ioc->name, response_code, desc);
2072 }
2073
2074 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2075 /**
2076 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2077 * @ioc: Pointer to MPT_ADAPTER structure
2078 * @mf: Pointer to SCSI task mgmt request frame
2079 * @mr: Pointer to SCSI task mgmt reply frame
2080 *
2081 * This routine is called from mptbase.c::mpt_interrupt() at the completion
2082 * of any SCSI task management request.
2083 * This routine is registered with the MPT (base) driver at driver
2084 * load/init time via the mpt_register() API call.
2085 *
2086 * Returns 1 indicating alloc'd request frame ptr should be freed.
2087 **/
2088 int
2089 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2090 {
2091 SCSITaskMgmtReply_t *pScsiTmReply;
2092 SCSITaskMgmt_t *pScsiTmReq;
2093 MPT_SCSI_HOST *hd;
2094 unsigned long flags;
2095 u16 iocstatus;
2096 u8 tmType;
2097 u32 termination_count;
2098
2099 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt completed (mf=%p,mr=%p)\n",
2100 ioc->name, mf, mr));
2101 if (!ioc->sh) {
2102 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
2103 "TaskMgmt Complete: NULL Scsi Host Ptr\n", ioc->name));
2104 return 1;
2105 }
2106
2107 if (mr == NULL) {
2108 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
2109 "ERROR! TaskMgmt Reply: NULL Request %p\n", ioc->name, mf));
2110 return 1;
2111 }
2112
2113 hd = shost_priv(ioc->sh);
2114 pScsiTmReply = (SCSITaskMgmtReply_t*)mr;
2115 pScsiTmReq = (SCSITaskMgmt_t*)mf;
2116 tmType = pScsiTmReq->TaskType;
2117 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2118 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
2119
2120 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
2121 pScsiTmReply->ResponseCode)
2122 mptscsih_taskmgmt_response_code(ioc,
2123 pScsiTmReply->ResponseCode);
2124 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
2125
2126 #ifdef CONFIG_FUSION_LOGGING
2127 if ((ioc->debug_level & MPT_DEBUG_REPLY) ||
2128 (ioc->debug_level & MPT_DEBUG_TM ))
2129 printk("%s: ha=%d [%d:%d:0] task_type=0x%02X "
2130 "iocstatus=0x%04X\n\tloginfo=0x%08X response_code=0x%02X "
2131 "term_cmnds=%d\n", __func__, ioc->id, pScsiTmReply->Bus,
2132 pScsiTmReply->TargetID, pScsiTmReq->TaskType,
2133 le16_to_cpu(pScsiTmReply->IOCStatus),
2134 le32_to_cpu(pScsiTmReply->IOCLogInfo),pScsiTmReply->ResponseCode,
2135 le32_to_cpu(pScsiTmReply->TerminationCount));
2136 #endif
2137 if (!iocstatus) {
2138 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT " TaskMgmt SUCCESS\n", ioc->name));
2139 hd->abortSCpnt = NULL;
2140 goto out;
2141 }
2142
2143 /* Error? (anything non-zero?) */
2144
2145 /* clear flags and continue.
2146 */
2147 switch (tmType) {
2148
2149 case MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2150 if (termination_count == 1)
2151 iocstatus = MPI_IOCSTATUS_SCSI_TASK_TERMINATED;
2152 hd->abortSCpnt = NULL;
2153 break;
2154
2155 case MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS:
2156
2157 /* If an internal command is present
2158 * or the TM failed - reload the FW.
2159 * FC FW may respond FAILED to an ABORT
2160 */
2161 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED ||
2162 hd->cmdPtr)
2163 if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0)
2164 printk(MYIOC_s_WARN_FMT " Firmware Reload FAILED!!\n", ioc->name);
2165 break;
2166
2167 case MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2168 default:
2169 break;
2170 }
2171
2172 out:
2173 spin_lock_irqsave(&ioc->FreeQlock, flags);
2174 hd->tmPending = 0;
2175 hd->tmState = TM_STATE_NONE;
2176 hd->tm_iocstatus = iocstatus;
2177 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2178
2179 return 1;
2180 }
2181
2182 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2183 /*
2184 * This is anyones guess quite frankly.
2185 */
2186 int
2187 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2188 sector_t capacity, int geom[])
2189 {
2190 int heads;
2191 int sectors;
2192 sector_t cylinders;
2193 ulong dummy;
2194
2195 heads = 64;
2196 sectors = 32;
2197
2198 dummy = heads * sectors;
2199 cylinders = capacity;
2200 sector_div(cylinders,dummy);
2201
2202 /*
2203 * Handle extended translation size for logical drives
2204 * > 1Gb
2205 */
2206 if ((ulong)capacity >= 0x200000) {
2207 heads = 255;
2208 sectors = 63;
2209 dummy = heads * sectors;
2210 cylinders = capacity;
2211 sector_div(cylinders,dummy);
2212 }
2213
2214 /* return result */
2215 geom[0] = heads;
2216 geom[1] = sectors;
2217 geom[2] = cylinders;
2218
2219 return 0;
2220 }
2221
2222 /* Search IOC page 3 to determine if this is hidden physical disk
2223 *
2224 */
2225 int
2226 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2227 {
2228 struct inactive_raid_component_info *component_info;
2229 int i;
2230 int rc = 0;
2231
2232 if (!ioc->raid_data.pIocPg3)
2233 goto out;
2234 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2235 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2236 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2237 rc = 1;
2238 goto out;
2239 }
2240 }
2241
2242 /*
2243 * Check inactive list for matching phys disks
2244 */
2245 if (list_empty(&ioc->raid_data.inactive_list))
2246 goto out;
2247
2248 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2249 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2250 list) {
2251 if ((component_info->d.PhysDiskID == id) &&
2252 (component_info->d.PhysDiskBus == channel))
2253 rc = 1;
2254 }
2255 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2256
2257 out:
2258 return rc;
2259 }
2260 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2261
2262 u8
2263 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2264 {
2265 struct inactive_raid_component_info *component_info;
2266 int i;
2267 int rc = -ENXIO;
2268
2269 if (!ioc->raid_data.pIocPg3)
2270 goto out;
2271 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2272 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2273 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2274 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2275 goto out;
2276 }
2277 }
2278
2279 /*
2280 * Check inactive list for matching phys disks
2281 */
2282 if (list_empty(&ioc->raid_data.inactive_list))
2283 goto out;
2284
2285 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2286 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2287 list) {
2288 if ((component_info->d.PhysDiskID == id) &&
2289 (component_info->d.PhysDiskBus == channel))
2290 rc = component_info->d.PhysDiskNum;
2291 }
2292 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2293
2294 out:
2295 return rc;
2296 }
2297 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2298
2299 /*
2300 * OS entry point to allow for host driver to free allocated memory
2301 * Called if no device present or device being unloaded
2302 */
2303 void
2304 mptscsih_slave_destroy(struct scsi_device *sdev)
2305 {
2306 struct Scsi_Host *host = sdev->host;
2307 MPT_SCSI_HOST *hd = shost_priv(host);
2308 VirtTarget *vtarget;
2309 VirtDevice *vdevice;
2310 struct scsi_target *starget;
2311
2312 starget = scsi_target(sdev);
2313 vtarget = starget->hostdata;
2314 vdevice = sdev->hostdata;
2315
2316 mptscsih_search_running_cmds(hd, vdevice);
2317 vtarget->num_luns--;
2318 mptscsih_synchronize_cache(hd, vdevice);
2319 kfree(vdevice);
2320 sdev->hostdata = NULL;
2321 }
2322
2323 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2324 /*
2325 * mptscsih_change_queue_depth - This function will set a devices queue depth
2326 * @sdev: per scsi_device pointer
2327 * @qdepth: requested queue depth
2328 *
2329 * Adding support for new 'change_queue_depth' api.
2330 */
2331 int
2332 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
2333 {
2334 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
2335 VirtTarget *vtarget;
2336 struct scsi_target *starget;
2337 int max_depth;
2338 int tagged;
2339 MPT_ADAPTER *ioc = hd->ioc;
2340
2341 starget = scsi_target(sdev);
2342 vtarget = starget->hostdata;
2343
2344 if (ioc->bus_type == SPI) {
2345 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2346 max_depth = 1;
2347 else if (sdev->type == TYPE_DISK &&
2348 vtarget->minSyncFactor <= MPT_ULTRA160)
2349 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2350 else
2351 max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2352 } else
2353 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2354
2355 if (qdepth > max_depth)
2356 qdepth = max_depth;
2357 if (qdepth == 1)
2358 tagged = 0;
2359 else
2360 tagged = MSG_SIMPLE_TAG;
2361
2362 scsi_adjust_queue_depth(sdev, tagged, qdepth);
2363 return sdev->queue_depth;
2364 }
2365
2366 /*
2367 * OS entry point to adjust the queue_depths on a per-device basis.
2368 * Called once per device the bus scan. Use it to force the queue_depth
2369 * member to 1 if a device does not support Q tags.
2370 * Return non-zero if fails.
2371 */
2372 int
2373 mptscsih_slave_configure(struct scsi_device *sdev)
2374 {
2375 struct Scsi_Host *sh = sdev->host;
2376 VirtTarget *vtarget;
2377 VirtDevice *vdevice;
2378 struct scsi_target *starget;
2379 MPT_SCSI_HOST *hd = shost_priv(sh);
2380 MPT_ADAPTER *ioc = hd->ioc;
2381
2382 starget = scsi_target(sdev);
2383 vtarget = starget->hostdata;
2384 vdevice = sdev->hostdata;
2385
2386 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2387 "device @ %p, channel=%d, id=%d, lun=%d\n",
2388 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2389 if (ioc->bus_type == SPI)
2390 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2391 "sdtr %d wdtr %d ppr %d inq length=%d\n",
2392 ioc->name, sdev->sdtr, sdev->wdtr,
2393 sdev->ppr, sdev->inquiry_len));
2394
2395 vdevice->configured_lun = 1;
2396 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
2397
2398 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2399 "Queue depth=%d, tflags=%x\n",
2400 ioc->name, sdev->queue_depth, vtarget->tflags));
2401
2402 if (ioc->bus_type == SPI)
2403 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2404 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2405 ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2406 vtarget->minSyncFactor));
2407
2408 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2409 "tagged %d, simple %d, ordered %d\n",
2410 ioc->name,sdev->tagged_supported, sdev->simple_tags,
2411 sdev->ordered_tags));
2412
2413 return 0;
2414 }
2415
2416 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2417 /*
2418 * Private routines...
2419 */
2420
2421 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2422 /* Utility function to copy sense data from the scsi_cmnd buffer
2423 * to the FC and SCSI target structures.
2424 *
2425 */
2426 static void
2427 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2428 {
2429 VirtDevice *vdevice;
2430 SCSIIORequest_t *pReq;
2431 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount);
2432 MPT_ADAPTER *ioc = hd->ioc;
2433
2434 /* Get target structure
2435 */
2436 pReq = (SCSIIORequest_t *) mf;
2437 vdevice = sc->device->hostdata;
2438
2439 if (sense_count) {
2440 u8 *sense_data;
2441 int req_index;
2442
2443 /* Copy the sense received into the scsi command block. */
2444 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2445 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2446 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2447
2448 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2449 */
2450 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2451 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2452 int idx;
2453
2454 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2455 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2456 ioc->events[idx].eventContext = ioc->eventContext;
2457
2458 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2459 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2460 (sc->device->channel << 8) | sc->device->id;
2461
2462 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2463
2464 ioc->eventContext++;
2465 if (ioc->pcidev->vendor ==
2466 PCI_VENDOR_ID_IBM) {
2467 mptscsih_issue_sep_command(ioc,
2468 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2469 vdevice->vtarget->tflags |=
2470 MPT_TARGET_FLAGS_LED_ON;
2471 }
2472 }
2473 }
2474 } else {
2475 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2476 ioc->name));
2477 }
2478 }
2479
2480 /**
2481 * mptscsih_get_scsi_lookup
2482 * @ioc: Pointer to MPT_ADAPTER structure
2483 * @i: index into the array
2484 *
2485 * retrieves scmd entry from ScsiLookup[] array list
2486 *
2487 * Returns the scsi_cmd pointer
2488 **/
2489 static struct scsi_cmnd *
2490 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2491 {
2492 unsigned long flags;
2493 struct scsi_cmnd *scmd;
2494
2495 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2496 scmd = ioc->ScsiLookup[i];
2497 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2498
2499 return scmd;
2500 }
2501
2502 /**
2503 * mptscsih_getclear_scsi_lookup
2504 * @ioc: Pointer to MPT_ADAPTER structure
2505 * @i: index into the array
2506 *
2507 * retrieves and clears scmd entry from ScsiLookup[] array list
2508 *
2509 * Returns the scsi_cmd pointer
2510 **/
2511 static struct scsi_cmnd *
2512 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2513 {
2514 unsigned long flags;
2515 struct scsi_cmnd *scmd;
2516
2517 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2518 scmd = ioc->ScsiLookup[i];
2519 ioc->ScsiLookup[i] = NULL;
2520 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2521
2522 return scmd;
2523 }
2524
2525 /**
2526 * mptscsih_set_scsi_lookup
2527 *
2528 * writes a scmd entry into the ScsiLookup[] array list
2529 *
2530 * @ioc: Pointer to MPT_ADAPTER structure
2531 * @i: index into the array
2532 * @scmd: scsi_cmnd pointer
2533 *
2534 **/
2535 static void
2536 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2537 {
2538 unsigned long flags;
2539
2540 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2541 ioc->ScsiLookup[i] = scmd;
2542 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2543 }
2544
2545 /**
2546 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2547 * @ioc: Pointer to MPT_ADAPTER structure
2548 * @sc: scsi_cmnd pointer
2549 */
2550 static int
2551 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2552 {
2553 unsigned long flags;
2554 int i, index=-1;
2555
2556 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2557 for (i = 0; i < ioc->req_depth; i++) {
2558 if (ioc->ScsiLookup[i] == sc) {
2559 index = i;
2560 goto out;
2561 }
2562 }
2563
2564 out:
2565 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2566 return index;
2567 }
2568
2569 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2570 int
2571 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2572 {
2573 MPT_SCSI_HOST *hd;
2574 unsigned long flags;
2575
2576 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2577 ": IOC %s_reset routed to SCSI host driver!\n",
2578 ioc->name, reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
2579 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
2580
2581 /* If a FW reload request arrives after base installed but
2582 * before all scsi hosts have been attached, then an alt_ioc
2583 * may have a NULL sh pointer.
2584 */
2585 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2586 return 0;
2587 else
2588 hd = shost_priv(ioc->sh);
2589
2590 if (reset_phase == MPT_IOC_SETUP_RESET) {
2591 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Setup-Diag Reset\n", ioc->name));
2592
2593 /* Clean Up:
2594 * 1. Set Hard Reset Pending Flag
2595 * All new commands go to doneQ
2596 */
2597 hd->resetPending = 1;
2598
2599 } else if (reset_phase == MPT_IOC_PRE_RESET) {
2600 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Pre-Diag Reset\n", ioc->name));
2601
2602 /* 2. Flush running commands
2603 * Clean ScsiLookup (and associated memory)
2604 * AND clean mytaskQ
2605 */
2606
2607 /* 2b. Reply to OS all known outstanding I/O commands.
2608 */
2609 mptscsih_flush_running_cmds(hd);
2610
2611 /* 2c. If there was an internal command that
2612 * has not completed, configuration or io request,
2613 * free these resources.
2614 */
2615 if (hd->cmdPtr) {
2616 del_timer(&hd->timer);
2617 mpt_free_msg_frame(ioc, hd->cmdPtr);
2618 }
2619
2620 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Pre-Reset complete.\n", ioc->name));
2621
2622 } else {
2623 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Post-Diag Reset\n", ioc->name));
2624
2625 /* Once a FW reload begins, all new OS commands are
2626 * redirected to the doneQ w/ a reset status.
2627 * Init all control structures.
2628 */
2629
2630 /* 2. Chain Buffer initialization
2631 */
2632
2633 /* 4. Renegotiate to all devices, if SPI
2634 */
2635
2636 /* 5. Enable new commands to be posted
2637 */
2638 spin_lock_irqsave(&ioc->FreeQlock, flags);
2639 hd->tmPending = 0;
2640 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2641 hd->resetPending = 0;
2642 hd->tmState = TM_STATE_NONE;
2643
2644 /* 6. If there was an internal command,
2645 * wake this process up.
2646 */
2647 if (hd->cmdPtr) {
2648 /*
2649 * Wake up the original calling thread
2650 */
2651 hd->pLocal = &hd->localReply;
2652 hd->pLocal->completion = MPT_SCANDV_DID_RESET;
2653 hd->scandv_wait_done = 1;
2654 wake_up(&hd->scandv_waitq);
2655 hd->cmdPtr = NULL;
2656 }
2657
2658 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Post-Reset complete.\n", ioc->name));
2659
2660 }
2661
2662 return 1; /* currently means nothing really */
2663 }
2664
2665 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2666 int
2667 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2668 {
2669 MPT_SCSI_HOST *hd;
2670 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2671
2672 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
2673 ioc->name, event));
2674
2675 if (ioc->sh == NULL ||
2676 ((hd = shost_priv(ioc->sh)) == NULL))
2677 return 1;
2678
2679 switch (event) {
2680 case MPI_EVENT_UNIT_ATTENTION: /* 03 */
2681 /* FIXME! */
2682 break;
2683 case MPI_EVENT_IOC_BUS_RESET: /* 04 */
2684 case MPI_EVENT_EXT_BUS_RESET: /* 05 */
2685 if (hd && (ioc->bus_type == SPI) && (hd->soft_resets < -1))
2686 hd->soft_resets++;
2687 break;
2688 case MPI_EVENT_LOGOUT: /* 09 */
2689 /* FIXME! */
2690 break;
2691
2692 case MPI_EVENT_RESCAN: /* 06 */
2693 break;
2694
2695 /*
2696 * CHECKME! Don't think we need to do
2697 * anything for these, but...
2698 */
2699 case MPI_EVENT_LINK_STATUS_CHANGE: /* 07 */
2700 case MPI_EVENT_LOOP_STATE_CHANGE: /* 08 */
2701 /*
2702 * CHECKME! Falling thru...
2703 */
2704 break;
2705
2706 case MPI_EVENT_INTEGRATED_RAID: /* 0B */
2707 break;
2708
2709 case MPI_EVENT_NONE: /* 00 */
2710 case MPI_EVENT_LOG_DATA: /* 01 */
2711 case MPI_EVENT_STATE_CHANGE: /* 02 */
2712 case MPI_EVENT_EVENT_CHANGE: /* 0A */
2713 default:
2714 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": Ignoring event (=%02Xh)\n",
2715 ioc->name, event));
2716 break;
2717 }
2718
2719 return 1; /* currently means nothing really */
2720 }
2721
2722 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2723 /*
2724 * Bus Scan and Domain Validation functionality ...
2725 */
2726
2727 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2728 /*
2729 * mptscsih_scandv_complete - Scan and DV callback routine registered
2730 * to Fustion MPT (base) driver.
2731 *
2732 * @ioc: Pointer to MPT_ADAPTER structure
2733 * @mf: Pointer to original MPT request frame
2734 * @mr: Pointer to MPT reply frame (NULL if TurboReply)
2735 *
2736 * This routine is called from mpt.c::mpt_interrupt() at the completion
2737 * of any SCSI IO request.
2738 * This routine is registered with the Fusion MPT (base) driver at driver
2739 * load/init time via the mpt_register() API call.
2740 *
2741 * Returns 1 indicating alloc'd request frame ptr should be freed.
2742 *
2743 * Remark: Sets a completion code and (possibly) saves sense data
2744 * in the IOC member localReply structure.
2745 * Used ONLY for DV and other internal commands.
2746 */
2747 int
2748 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2749 {
2750 MPT_SCSI_HOST *hd;
2751 SCSIIORequest_t *pReq;
2752 int completionCode;
2753 u16 req_idx;
2754
2755 hd = shost_priv(ioc->sh);
2756
2757 if ((mf == NULL) ||
2758 (mf >= MPT_INDEX_2_MFPTR(ioc, ioc->req_depth))) {
2759 printk(MYIOC_s_ERR_FMT
2760 "ScanDvComplete, %s req frame ptr! (=%p)\n",
2761 ioc->name, mf?"BAD":"NULL", (void *) mf);
2762 goto wakeup;
2763 }
2764
2765 del_timer(&hd->timer);
2766 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2767 mptscsih_set_scsi_lookup(ioc, req_idx, NULL);
2768 pReq = (SCSIIORequest_t *) mf;
2769
2770 if (mf != hd->cmdPtr) {
2771 printk(MYIOC_s_WARN_FMT "ScanDvComplete (mf=%p, cmdPtr=%p, idx=%d)\n",
2772 ioc->name, (void *)mf, (void *) hd->cmdPtr, req_idx);
2773 }
2774 hd->cmdPtr = NULL;
2775
2776 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScanDvComplete (mf=%p,mr=%p,idx=%d)\n",
2777 ioc->name, mf, mr, req_idx));
2778
2779 hd->pLocal = &hd->localReply;
2780 hd->pLocal->scsiStatus = 0;
2781
2782 /* If target struct exists, clear sense valid flag.
2783 */
2784 if (mr == NULL) {
2785 completionCode = MPT_SCANDV_GOOD;
2786 } else {
2787 SCSIIOReply_t *pReply;
2788 u16 status;
2789 u8 scsi_status;
2790
2791 pReply = (SCSIIOReply_t *) mr;
2792
2793 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2794 scsi_status = pReply->SCSIStatus;
2795
2796
2797 switch(status) {
2798
2799 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
2800 completionCode = 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 completionCode = MPT_SCANDV_DID_RESET;
2808 break;
2809
2810 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
2811 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
2812 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
2813 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2814 ConfigReply_t *pr = (ConfigReply_t *)mr;
2815 completionCode = MPT_SCANDV_GOOD;
2816 hd->pLocal->header.PageVersion = pr->Header.PageVersion;
2817 hd->pLocal->header.PageLength = pr->Header.PageLength;
2818 hd->pLocal->header.PageNumber = pr->Header.PageNumber;
2819 hd->pLocal->header.PageType = pr->Header.PageType;
2820
2821 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2822 /* If the RAID Volume request is successful,
2823 * return GOOD, else indicate that
2824 * some type of error occurred.
2825 */
2826 MpiRaidActionReply_t *pr = (MpiRaidActionReply_t *)mr;
2827 if (le16_to_cpu(pr->ActionStatus) == MPI_RAID_ACTION_ASTATUS_SUCCESS)
2828 completionCode = MPT_SCANDV_GOOD;
2829 else
2830 completionCode = MPT_SCANDV_SOME_ERROR;
2831 memcpy(hd->pLocal->sense, pr, sizeof(hd->pLocal->sense));
2832
2833 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
2834 u8 *sense_data;
2835 int sz;
2836
2837 /* save sense data in global structure
2838 */
2839 completionCode = MPT_SCANDV_SENSE;
2840 hd->pLocal->scsiStatus = scsi_status;
2841 sense_data = ((u8 *)ioc->sense_buf_pool +
2842 (req_idx * MPT_SENSE_BUFFER_ALLOC));
2843
2844 sz = min_t(int, pReq->SenseBufferLength,
2845 SCSI_STD_SENSE_BYTES);
2846 memcpy(hd->pLocal->sense, sense_data, sz);
2847
2848 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Check Condition, sense ptr %p\n",
2849 ioc->name, sense_data));
2850 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2851 if (pReq->CDB[0] == INQUIRY)
2852 completionCode = MPT_SCANDV_ISSUE_SENSE;
2853 else
2854 completionCode = MPT_SCANDV_DID_RESET;
2855 }
2856 else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2857 completionCode = MPT_SCANDV_DID_RESET;
2858 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2859 completionCode = MPT_SCANDV_DID_RESET;
2860 else {
2861 completionCode = MPT_SCANDV_GOOD;
2862 hd->pLocal->scsiStatus = scsi_status;
2863 }
2864 break;
2865
2866 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
2867 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2868 completionCode = MPT_SCANDV_DID_RESET;
2869 else
2870 completionCode = MPT_SCANDV_SOME_ERROR;
2871 break;
2872
2873 default:
2874 completionCode = MPT_SCANDV_SOME_ERROR;
2875 break;
2876
2877 } /* switch(status) */
2878
2879 } /* end of address reply case */
2880
2881 hd->pLocal->completion = completionCode;
2882
2883 /* MF and RF are freed in mpt_interrupt
2884 */
2885 wakeup:
2886 /* Free Chain buffers (will never chain) in scan or dv */
2887 //mptscsih_freeChainBuffers(ioc, req_idx);
2888
2889 /*
2890 * Wake up the original calling thread
2891 */
2892 hd->scandv_wait_done = 1;
2893 wake_up(&hd->scandv_waitq);
2894
2895 return 1;
2896 }
2897
2898 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2899 /* mptscsih_timer_expired - Call back for timer process.
2900 * Used only for dv functionality.
2901 * @data: Pointer to MPT_SCSI_HOST recast as an unsigned long
2902 *
2903 */
2904 void
2905 mptscsih_timer_expired(unsigned long data)
2906 {
2907 MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *) data;
2908 MPT_ADAPTER *ioc = hd->ioc;
2909
2910 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Timer Expired! Cmd %p\n", ioc->name, hd->cmdPtr));
2911
2912 if (hd->cmdPtr) {
2913 MPIHeader_t *cmd = (MPIHeader_t *)hd->cmdPtr;
2914
2915 if (cmd->Function == MPI_FUNCTION_SCSI_IO_REQUEST) {
2916 /* Desire to issue a task management request here.
2917 * TM requests MUST be single threaded.
2918 * If old eh code and no TM current, issue request.
2919 * If new eh code, do nothing. Wait for OS cmd timeout
2920 * for bus reset.
2921 */
2922 } else {
2923 /* Perform a FW reload */
2924 if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0) {
2925 printk(MYIOC_s_WARN_FMT "Firmware Reload FAILED!\n", ioc->name);
2926 }
2927 }
2928 } else {
2929 /* This should NEVER happen */
2930 printk(MYIOC_s_WARN_FMT "Null cmdPtr!!!!\n", ioc->name);
2931 }
2932
2933 /* No more processing.
2934 * TM call will generate an interrupt for SCSI TM Management.
2935 * The FW will reply to all outstanding commands, callback will finish cleanup.
2936 * Hard reset clean-up will free all resources.
2937 */
2938 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Timer Expired Complete!\n", ioc->name));
2939
2940 return;
2941 }
2942
2943
2944 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2945 /**
2946 * mptscsih_do_cmd - Do internal command.
2947 * @hd: MPT_SCSI_HOST pointer
2948 * @io: INTERNAL_CMD pointer.
2949 *
2950 * Issue the specified internally generated command and do command
2951 * specific cleanup. For bus scan / DV only.
2952 * NOTES: If command is Inquiry and status is good,
2953 * initialize a target structure, save the data
2954 *
2955 * Remark: Single threaded access only.
2956 *
2957 * Return:
2958 * < 0 if an illegal command or no resources
2959 *
2960 * 0 if good
2961 *
2962 * > 0 if command complete but some type of completion error.
2963 */
2964 static int
2965 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2966 {
2967 MPT_FRAME_HDR *mf;
2968 SCSIIORequest_t *pScsiReq;
2969 SCSIIORequest_t ReqCopy;
2970 int my_idx, ii, dir;
2971 int rc, cmdTimeout;
2972 int in_isr;
2973 char cmdLen;
2974 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2975 char cmd = io->cmd;
2976 MPT_ADAPTER *ioc = hd->ioc;
2977
2978 in_isr = in_interrupt();
2979 if (in_isr) {
2980 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Internal SCSI IO request not allowed in ISR context!\n",
2981 ioc->name));
2982 return -EPERM;
2983 }
2984
2985
2986 /* Set command specific information
2987 */
2988 switch (cmd) {
2989 case INQUIRY:
2990 cmdLen = 6;
2991 dir = MPI_SCSIIO_CONTROL_READ;
2992 CDB[0] = cmd;
2993 CDB[4] = io->size;
2994 cmdTimeout = 10;
2995 break;
2996
2997 case TEST_UNIT_READY:
2998 cmdLen = 6;
2999 dir = MPI_SCSIIO_CONTROL_READ;
3000 cmdTimeout = 10;
3001 break;
3002
3003 case START_STOP:
3004 cmdLen = 6;
3005 dir = MPI_SCSIIO_CONTROL_READ;
3006 CDB[0] = cmd;
3007 CDB[4] = 1; /*Spin up the disk */
3008 cmdTimeout = 15;
3009 break;
3010
3011 case REQUEST_SENSE:
3012 cmdLen = 6;
3013 CDB[0] = cmd;
3014 CDB[4] = io->size;
3015 dir = MPI_SCSIIO_CONTROL_READ;
3016 cmdTimeout = 10;
3017 break;
3018
3019 case READ_BUFFER:
3020 cmdLen = 10;
3021 dir = MPI_SCSIIO_CONTROL_READ;
3022 CDB[0] = cmd;
3023 if (io->flags & MPT_ICFLAG_ECHO) {
3024 CDB[1] = 0x0A;
3025 } else {
3026 CDB[1] = 0x02;
3027 }
3028
3029 if (io->flags & MPT_ICFLAG_BUF_CAP) {
3030 CDB[1] |= 0x01;
3031 }
3032 CDB[6] = (io->size >> 16) & 0xFF;
3033 CDB[7] = (io->size >> 8) & 0xFF;
3034 CDB[8] = io->size & 0xFF;
3035 cmdTimeout = 10;
3036 break;
3037
3038 case WRITE_BUFFER:
3039 cmdLen = 10;
3040 dir = MPI_SCSIIO_CONTROL_WRITE;
3041 CDB[0] = cmd;
3042 if (io->flags & MPT_ICFLAG_ECHO) {
3043 CDB[1] = 0x0A;
3044 } else {
3045 CDB[1] = 0x02;
3046 }
3047 CDB[6] = (io->size >> 16) & 0xFF;
3048 CDB[7] = (io->size >> 8) & 0xFF;
3049 CDB[8] = io->size & 0xFF;
3050 cmdTimeout = 10;
3051 break;
3052
3053 case RESERVE:
3054 cmdLen = 6;
3055 dir = MPI_SCSIIO_CONTROL_READ;
3056 CDB[0] = cmd;
3057 cmdTimeout = 10;
3058 break;
3059
3060 case RELEASE:
3061 cmdLen = 6;
3062 dir = MPI_SCSIIO_CONTROL_READ;
3063 CDB[0] = cmd;
3064 cmdTimeout = 10;
3065 break;
3066
3067 case SYNCHRONIZE_CACHE:
3068 cmdLen = 10;
3069 dir = MPI_SCSIIO_CONTROL_READ;
3070 CDB[0] = cmd;
3071 // CDB[1] = 0x02; /* set immediate bit */
3072 cmdTimeout = 10;
3073 break;
3074
3075 default:
3076 /* Error Case */
3077 return -EFAULT;
3078 }
3079
3080 /* Get and Populate a free Frame
3081 */
3082 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
3083 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "No msg frames!\n",
3084 ioc->name));
3085 return -EBUSY;
3086 }
3087
3088 pScsiReq = (SCSIIORequest_t *) mf;
3089
3090 /* Get the request index */
3091 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
3092 ADD_INDEX_LOG(my_idx); /* for debug */
3093
3094 if (io->flags & MPT_ICFLAG_PHYS_DISK) {
3095 pScsiReq->TargetID = io->physDiskNum;
3096 pScsiReq->Bus = 0;
3097 pScsiReq->ChainOffset = 0;
3098 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3099 } else {
3100 pScsiReq->TargetID = io->id;
3101 pScsiReq->Bus = io->channel;
3102 pScsiReq->ChainOffset = 0;
3103 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
3104 }
3105
3106 pScsiReq->CDBLength = cmdLen;
3107 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
3108
3109 pScsiReq->Reserved = 0;
3110
3111 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
3112 /* MsgContext set in mpt_get_msg_fram call */
3113
3114 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
3115
3116 if (io->flags & MPT_ICFLAG_TAGGED_CMD)
3117 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
3118 else
3119 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3120
3121 if (cmd == REQUEST_SENSE) {
3122 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3123 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Untagged! 0x%2x\n",
3124 ioc->name, cmd));
3125 }
3126
3127 for (ii=0; ii < 16; ii++)
3128 pScsiReq->CDB[ii] = CDB[ii];
3129
3130 pScsiReq->DataLength = cpu_to_le32(io->size);
3131 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
3132 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
3133
3134 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Sending Command 0x%x for (%d:%d:%d)\n",
3135 ioc->name, cmd, io->channel, io->id, io->lun));
3136
3137 if (dir == MPI_SCSIIO_CONTROL_READ) {
3138 ioc->add_sge((char *) &pScsiReq->SGL,
3139 MPT_SGE_FLAGS_SSIMPLE_READ | io->size,
3140 io->data_dma);
3141 } else {
3142 ioc->add_sge((char *) &pScsiReq->SGL,
3143 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size,
3144 io->data_dma);
3145 }
3146
3147 /* The ISR will free the request frame, but we need
3148 * the information to initialize the target. Duplicate.
3149 */
3150 memcpy(&ReqCopy, pScsiReq, sizeof(SCSIIORequest_t));
3151
3152 /* Issue this command after:
3153 * finish init
3154 * add timer
3155 * Wait until the reply has been received
3156 * ScsiScanDvCtx callback function will
3157 * set hd->pLocal;
3158 * set scandv_wait_done and call wake_up
3159 */
3160 hd->pLocal = NULL;
3161 hd->timer.expires = jiffies + HZ*cmdTimeout;
3162 hd->scandv_wait_done = 0;
3163
3164 /* Save cmd pointer, for resource free if timeout or
3165 * FW reload occurs
3166 */
3167 hd->cmdPtr = mf;
3168
3169 add_timer(&hd->timer);
3170 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
3171 wait_event(hd->scandv_waitq, hd->scandv_wait_done);
3172
3173 if (hd->pLocal) {
3174 rc = hd->pLocal->completion;
3175 hd->pLocal->skip = 0;
3176
3177 /* Always set fatal error codes in some cases.
3178 */
3179 if (rc == MPT_SCANDV_SELECTION_TIMEOUT)
3180 rc = -ENXIO;
3181 else if (rc == MPT_SCANDV_SOME_ERROR)
3182 rc = -rc;
3183 } else {
3184 rc = -EFAULT;
3185 /* This should never happen. */
3186 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "_do_cmd: Null pLocal!!!\n",
3187 ioc->name));
3188 }
3189
3190 return rc;
3191 }
3192
3193 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3194 /**
3195 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3196 * @hd: Pointer to a SCSI HOST structure
3197 * @vdevice: virtual target device
3198 *
3199 * Uses the ISR, but with special processing.
3200 * MUST be single-threaded.
3201 *
3202 */
3203 static void
3204 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3205 {
3206 INTERNAL_CMD iocmd;
3207
3208 /* Ignore hidden raid components, this is handled when the command
3209 * is sent to the volume
3210 */
3211 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3212 return;
3213
3214 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3215 !vdevice->configured_lun)
3216 return;
3217
3218 /* Following parameters will not change
3219 * in this routine.
3220 */
3221 iocmd.cmd = SYNCHRONIZE_CACHE;
3222 iocmd.flags = 0;
3223 iocmd.physDiskNum = -1;
3224 iocmd.data = NULL;
3225 iocmd.data_dma = -1;
3226 iocmd.size = 0;
3227 iocmd.rsvd = iocmd.rsvd2 = 0;
3228 iocmd.channel = vdevice->vtarget->channel;
3229 iocmd.id = vdevice->vtarget->id;
3230 iocmd.lun = vdevice->lun;
3231
3232 mptscsih_do_cmd(hd, &iocmd);
3233 }
3234
3235 static ssize_t
3236 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3237 char *buf)
3238 {
3239 struct Scsi_Host *host = class_to_shost(dev);
3240 MPT_SCSI_HOST *hd = shost_priv(host);
3241 MPT_ADAPTER *ioc = hd->ioc;
3242
3243 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3244 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3245 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3246 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3247 ioc->facts.FWVersion.Word & 0x000000FF);
3248 }
3249 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3250
3251 static ssize_t
3252 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3253 char *buf)
3254 {
3255 struct Scsi_Host *host = class_to_shost(dev);
3256 MPT_SCSI_HOST *hd = shost_priv(host);
3257 MPT_ADAPTER *ioc = hd->ioc;
3258
3259 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3260 (ioc->biosVersion & 0xFF000000) >> 24,
3261 (ioc->biosVersion & 0x00FF0000) >> 16,
3262 (ioc->biosVersion & 0x0000FF00) >> 8,
3263 ioc->biosVersion & 0x000000FF);
3264 }
3265 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3266
3267 static ssize_t
3268 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3269 char *buf)
3270 {
3271 struct Scsi_Host *host = class_to_shost(dev);
3272 MPT_SCSI_HOST *hd = shost_priv(host);
3273 MPT_ADAPTER *ioc = hd->ioc;
3274
3275 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3276 }
3277 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3278
3279 static ssize_t
3280 mptscsih_version_product_show(struct device *dev,
3281 struct device_attribute *attr,
3282 char *buf)
3283 {
3284 struct Scsi_Host *host = class_to_shost(dev);
3285 MPT_SCSI_HOST *hd = shost_priv(host);
3286 MPT_ADAPTER *ioc = hd->ioc;
3287
3288 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3289 }
3290 static DEVICE_ATTR(version_product, S_IRUGO,
3291 mptscsih_version_product_show, NULL);
3292
3293 static ssize_t
3294 mptscsih_version_nvdata_persistent_show(struct device *dev,
3295 struct device_attribute *attr,
3296 char *buf)
3297 {
3298 struct Scsi_Host *host = class_to_shost(dev);
3299 MPT_SCSI_HOST *hd = shost_priv(host);
3300 MPT_ADAPTER *ioc = hd->ioc;
3301
3302 return snprintf(buf, PAGE_SIZE, "%02xh\n",
3303 ioc->nvdata_version_persistent);
3304 }
3305 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3306 mptscsih_version_nvdata_persistent_show, NULL);
3307
3308 static ssize_t
3309 mptscsih_version_nvdata_default_show(struct device *dev,
3310 struct device_attribute *attr, char *buf)
3311 {
3312 struct Scsi_Host *host = class_to_shost(dev);
3313 MPT_SCSI_HOST *hd = shost_priv(host);
3314 MPT_ADAPTER *ioc = hd->ioc;
3315
3316 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3317 }
3318 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3319 mptscsih_version_nvdata_default_show, NULL);
3320
3321 static ssize_t
3322 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3323 char *buf)
3324 {
3325 struct Scsi_Host *host = class_to_shost(dev);
3326 MPT_SCSI_HOST *hd = shost_priv(host);
3327 MPT_ADAPTER *ioc = hd->ioc;
3328
3329 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3330 }
3331 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3332
3333 static ssize_t
3334 mptscsih_board_assembly_show(struct device *dev,
3335 struct device_attribute *attr, char *buf)
3336 {
3337 struct Scsi_Host *host = class_to_shost(dev);
3338 MPT_SCSI_HOST *hd = shost_priv(host);
3339 MPT_ADAPTER *ioc = hd->ioc;
3340
3341 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3342 }
3343 static DEVICE_ATTR(board_assembly, S_IRUGO,
3344 mptscsih_board_assembly_show, NULL);
3345
3346 static ssize_t
3347 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3348 char *buf)
3349 {
3350 struct Scsi_Host *host = class_to_shost(dev);
3351 MPT_SCSI_HOST *hd = shost_priv(host);
3352 MPT_ADAPTER *ioc = hd->ioc;
3353
3354 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3355 }
3356 static DEVICE_ATTR(board_tracer, S_IRUGO,
3357 mptscsih_board_tracer_show, NULL);
3358
3359 static ssize_t
3360 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3361 char *buf)
3362 {
3363 struct Scsi_Host *host = class_to_shost(dev);
3364 MPT_SCSI_HOST *hd = shost_priv(host);
3365 MPT_ADAPTER *ioc = hd->ioc;
3366
3367 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3368 }
3369 static DEVICE_ATTR(io_delay, S_IRUGO,
3370 mptscsih_io_delay_show, NULL);
3371
3372 static ssize_t
3373 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3374 char *buf)
3375 {
3376 struct Scsi_Host *host = class_to_shost(dev);
3377 MPT_SCSI_HOST *hd = shost_priv(host);
3378 MPT_ADAPTER *ioc = hd->ioc;
3379
3380 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3381 }
3382 static DEVICE_ATTR(device_delay, S_IRUGO,
3383 mptscsih_device_delay_show, NULL);
3384
3385 static ssize_t
3386 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3387 char *buf)
3388 {
3389 struct Scsi_Host *host = class_to_shost(dev);
3390 MPT_SCSI_HOST *hd = shost_priv(host);
3391 MPT_ADAPTER *ioc = hd->ioc;
3392
3393 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3394 }
3395 static ssize_t
3396 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3397 const char *buf, size_t count)
3398 {
3399 struct Scsi_Host *host = class_to_shost(dev);
3400 MPT_SCSI_HOST *hd = shost_priv(host);
3401 MPT_ADAPTER *ioc = hd->ioc;
3402 int val = 0;
3403
3404 if (sscanf(buf, "%x", &val) != 1)
3405 return -EINVAL;
3406
3407 ioc->debug_level = val;
3408 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3409 ioc->name, ioc->debug_level);
3410 return strlen(buf);
3411 }
3412 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3413 mptscsih_debug_level_show, mptscsih_debug_level_store);
3414
3415 struct device_attribute *mptscsih_host_attrs[] = {
3416 &dev_attr_version_fw,
3417 &dev_attr_version_bios,
3418 &dev_attr_version_mpi,
3419 &dev_attr_version_product,
3420 &dev_attr_version_nvdata_persistent,
3421 &dev_attr_version_nvdata_default,
3422 &dev_attr_board_name,
3423 &dev_attr_board_assembly,
3424 &dev_attr_board_tracer,
3425 &dev_attr_io_delay,
3426 &dev_attr_device_delay,
3427 &dev_attr_debug_level,
3428 NULL,
3429 };
3430 EXPORT_SYMBOL(mptscsih_host_attrs);
3431
3432 EXPORT_SYMBOL(mptscsih_remove);
3433 EXPORT_SYMBOL(mptscsih_shutdown);
3434 #ifdef CONFIG_PM
3435 EXPORT_SYMBOL(mptscsih_suspend);
3436 EXPORT_SYMBOL(mptscsih_resume);
3437 #endif
3438 EXPORT_SYMBOL(mptscsih_proc_info);
3439 EXPORT_SYMBOL(mptscsih_info);
3440 EXPORT_SYMBOL(mptscsih_qcmd);
3441 EXPORT_SYMBOL(mptscsih_slave_destroy);
3442 EXPORT_SYMBOL(mptscsih_slave_configure);
3443 EXPORT_SYMBOL(mptscsih_abort);
3444 EXPORT_SYMBOL(mptscsih_dev_reset);
3445 EXPORT_SYMBOL(mptscsih_bus_reset);
3446 EXPORT_SYMBOL(mptscsih_host_reset);
3447 EXPORT_SYMBOL(mptscsih_bios_param);
3448 EXPORT_SYMBOL(mptscsih_io_done);
3449 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3450 EXPORT_SYMBOL(mptscsih_scandv_complete);
3451 EXPORT_SYMBOL(mptscsih_event_process);
3452 EXPORT_SYMBOL(mptscsih_ioc_reset);
3453 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3454 EXPORT_SYMBOL(mptscsih_timer_expired);
3455 EXPORT_SYMBOL(mptscsih_TMHandler);
3456
3457 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree