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1/*
2 * linux/drivers/message/fusion/mptscsih.c
3 * For use with LSI PCI chip/adapter(s)
4 * running LSI Fusion MPT (Message Passing Technology) firmware.
5 *
6 * Copyright (c) 1999-2008 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
8 *
9 */
10/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
11/*
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; version 2 of the License.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 NO WARRANTY
22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
26 solely responsible for determining the appropriateness of using and
27 distributing the Program and assumes all risks associated with its
28 exercise of rights under this Agreement, including but not limited to
29 the risks and costs of program errors, damage to or loss of data,
30 programs or equipment, and unavailability or interruption of operations.
31
32 DISCLAIMER OF LIABILITY
33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40
41 You should have received a copy of the GNU General Public License
42 along with this program; if not, write to the Free Software
43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
44*/
45/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
46
47#include <linux/module.h>
48#include <linux/kernel.h>
49#include <linux/slab.h>
50#include <linux/init.h>
51#include <linux/errno.h>
52#include <linux/kdev_t.h>
53#include <linux/blkdev.h>
54#include <linux/delay.h> /* for mdelay */
55#include <linux/interrupt.h> /* needed for in_interrupt() proto */
56#include <linux/reboot.h> /* notifier code */
57#include <linux/workqueue.h>
58
59#include <scsi/scsi.h>
60#include <scsi/scsi_cmnd.h>
61#include <scsi/scsi_device.h>
62#include <scsi/scsi_host.h>
63#include <scsi/scsi_tcq.h>
64#include <scsi/scsi_dbg.h>
65
66#include "mptbase.h"
67#include "mptscsih.h"
68#include "lsi/mpi_log_sas.h"
69
70/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
71#define my_NAME "Fusion MPT SCSI Host driver"
72#define my_VERSION MPT_LINUX_VERSION_COMMON
73#define MYNAM "mptscsih"
74
75MODULE_AUTHOR(MODULEAUTHOR);
76MODULE_DESCRIPTION(my_NAME);
77MODULE_LICENSE("GPL");
78MODULE_VERSION(my_VERSION);
79
80/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
81/*
82 * Other private/forward protos...
83 */
84struct scsi_cmnd *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
85static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i);
86static void mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd);
87static int SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd);
88int mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
89static void mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
90int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
91
92static int mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
93 SCSIIORequest_t *pReq, int req_idx);
94static void mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
95static void mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
96
97int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id,
98 int lun, int ctx2abort, ulong timeout);
99
100int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
101int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
102
103void
104mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code);
105static int mptscsih_get_completion_code(MPT_ADAPTER *ioc,
106 MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply);
107int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
108static int mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
109static void mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
110
111static int
112mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
113 SCSITaskMgmtReply_t *pScsiTmReply);
114void mptscsih_remove(struct pci_dev *);
115void mptscsih_shutdown(struct pci_dev *);
116#ifdef CONFIG_PM
117int mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
118int mptscsih_resume(struct pci_dev *pdev);
119#endif
120
121#define SNS_LEN(scp) SCSI_SENSE_BUFFERSIZE
122
123
124/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
125/*
126 * mptscsih_getFreeChainBuffer - Function to get a free chain
127 * from the MPT_SCSI_HOST FreeChainQ.
128 * @ioc: Pointer to MPT_ADAPTER structure
129 * @req_idx: Index of the SCSI IO request frame. (output)
130 *
131 * return SUCCESS or FAILED
132 */
133static inline int
134mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
135{
136 MPT_FRAME_HDR *chainBuf;
137 unsigned long flags;
138 int rc;
139 int chain_idx;
140
141 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n",
142 ioc->name));
143 spin_lock_irqsave(&ioc->FreeQlock, flags);
144 if (!list_empty(&ioc->FreeChainQ)) {
145 int offset;
146
147 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR,
148 u.frame.linkage.list);
149 list_del(&chainBuf->u.frame.linkage.list);
150 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer;
151 chain_idx = offset / ioc->req_sz;
152 rc = SUCCESS;
153 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
154 "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n",
155 ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx));
156 } else {
157 rc = FAILED;
158 chain_idx = MPT_HOST_NO_CHAIN;
159 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n",
160 ioc->name));
161 }
162 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
163
164 *retIndex = chain_idx;
165 return rc;
166} /* mptscsih_getFreeChainBuffer() */
167
168/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
169/*
170 * mptscsih_AddSGE - Add a SGE (plus chain buffers) to the
171 * SCSIIORequest_t Message Frame.
172 * @ioc: Pointer to MPT_ADAPTER structure
173 * @SCpnt: Pointer to scsi_cmnd structure
174 * @pReq: Pointer to SCSIIORequest_t structure
175 *
176 * Returns ...
177 */
178static int
179mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
180 SCSIIORequest_t *pReq, int req_idx)
181{
182 char *psge;
183 char *chainSge;
184 struct scatterlist *sg;
185 int frm_sz;
186 int sges_left, sg_done;
187 int chain_idx = MPT_HOST_NO_CHAIN;
188 int sgeOffset;
189 int numSgeSlots, numSgeThisFrame;
190 u32 sgflags, sgdir, thisxfer = 0;
191 int chain_dma_off = 0;
192 int newIndex;
193 int ii;
194 dma_addr_t v2;
195 u32 RequestNB;
196
197 sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
198 if (sgdir == MPI_SCSIIO_CONTROL_WRITE) {
199 sgdir = MPT_TRANSFER_HOST_TO_IOC;
200 } else {
201 sgdir = MPT_TRANSFER_IOC_TO_HOST;
202 }
203
204 psge = (char *) &pReq->SGL;
205 frm_sz = ioc->req_sz;
206
207 /* Map the data portion, if any.
208 * sges_left = 0 if no data transfer.
209 */
210 sges_left = scsi_dma_map(SCpnt);
211 if (sges_left < 0)
212 return FAILED;
213
214 /* Handle the SG case.
215 */
216 sg = scsi_sglist(SCpnt);
217 sg_done = 0;
218 sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION);
219 chainSge = NULL;
220
221 /* Prior to entering this loop - the following must be set
222 * current MF: sgeOffset (bytes)
223 * chainSge (Null if original MF is not a chain buffer)
224 * sg_done (num SGE done for this MF)
225 */
226
227nextSGEset:
228 numSgeSlots = ((frm_sz - sgeOffset) / ioc->SGE_size);
229 numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
230
231 sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | sgdir;
232
233 /* Get first (num - 1) SG elements
234 * Skip any SG entries with a length of 0
235 * NOTE: at finish, sg and psge pointed to NEXT data/location positions
236 */
237 for (ii=0; ii < (numSgeThisFrame-1); ii++) {
238 thisxfer = sg_dma_len(sg);
239 if (thisxfer == 0) {
240 /* Get next SG element from the OS */
241 sg = sg_next(sg);
242 sg_done++;
243 continue;
244 }
245
246 v2 = sg_dma_address(sg);
247 ioc->add_sge(psge, sgflags | thisxfer, v2);
248
249 /* Get next SG element from the OS */
250 sg = sg_next(sg);
251 psge += ioc->SGE_size;
252 sgeOffset += ioc->SGE_size;
253 sg_done++;
254 }
255
256 if (numSgeThisFrame == sges_left) {
257 /* Add last element, end of buffer and end of list flags.
258 */
259 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT |
260 MPT_SGE_FLAGS_END_OF_BUFFER |
261 MPT_SGE_FLAGS_END_OF_LIST;
262
263 /* Add last SGE and set termination flags.
264 * Note: Last SGE may have a length of 0 - which should be ok.
265 */
266 thisxfer = sg_dma_len(sg);
267
268 v2 = sg_dma_address(sg);
269 ioc->add_sge(psge, sgflags | thisxfer, v2);
270 sgeOffset += ioc->SGE_size;
271 sg_done++;
272
273 if (chainSge) {
274 /* The current buffer is a chain buffer,
275 * but there is not another one.
276 * Update the chain element
277 * Offset and Length fields.
278 */
279 ioc->add_chain((char *)chainSge, 0, sgeOffset,
280 ioc->ChainBufferDMA + chain_dma_off);
281 } else {
282 /* The current buffer is the original MF
283 * and there is no Chain buffer.
284 */
285 pReq->ChainOffset = 0;
286 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03;
287 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
288 "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
289 ioc->RequestNB[req_idx] = RequestNB;
290 }
291 } else {
292 /* At least one chain buffer is needed.
293 * Complete the first MF
294 * - last SGE element, set the LastElement bit
295 * - set ChainOffset (words) for orig MF
296 * (OR finish previous MF chain buffer)
297 * - update MFStructPtr ChainIndex
298 * - Populate chain element
299 * Also
300 * Loop until done.
301 */
302
303 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n",
304 ioc->name, sg_done));
305
306 /* Set LAST_ELEMENT flag for last non-chain element
307 * in the buffer. Since psge points at the NEXT
308 * SGE element, go back one SGE element, update the flags
309 * and reset the pointer. (Note: sgflags & thisxfer are already
310 * set properly).
311 */
312 if (sg_done) {
313 u32 *ptmp = (u32 *) (psge - ioc->SGE_size);
314 sgflags = le32_to_cpu(*ptmp);
315 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT;
316 *ptmp = cpu_to_le32(sgflags);
317 }
318
319 if (chainSge) {
320 /* The current buffer is a chain buffer.
321 * chainSge points to the previous Chain Element.
322 * Update its chain element Offset and Length (must
323 * include chain element size) fields.
324 * Old chain element is now complete.
325 */
326 u8 nextChain = (u8) (sgeOffset >> 2);
327 sgeOffset += ioc->SGE_size;
328 ioc->add_chain((char *)chainSge, nextChain, sgeOffset,
329 ioc->ChainBufferDMA + chain_dma_off);
330 } else {
331 /* The original MF buffer requires a chain buffer -
332 * set the offset.
333 * Last element in this MF is a chain element.
334 */
335 pReq->ChainOffset = (u8) (sgeOffset >> 2);
336 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03;
337 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
338 ioc->RequestNB[req_idx] = RequestNB;
339 }
340
341 sges_left -= sg_done;
342
343
344 /* NOTE: psge points to the beginning of the chain element
345 * in current buffer. Get a chain buffer.
346 */
347 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
348 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
349 "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
350 ioc->name, pReq->CDB[0], SCpnt));
351 return FAILED;
352 }
353
354 /* Update the tracking arrays.
355 * If chainSge == NULL, update ReqToChain, else ChainToChain
356 */
357 if (chainSge) {
358 ioc->ChainToChain[chain_idx] = newIndex;
359 } else {
360 ioc->ReqToChain[req_idx] = newIndex;
361 }
362 chain_idx = newIndex;
363 chain_dma_off = ioc->req_sz * chain_idx;
364
365 /* Populate the chainSGE for the current buffer.
366 * - Set chain buffer pointer to psge and fill
367 * out the Address and Flags fields.
368 */
369 chainSge = (char *) psge;
370 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Current buff @ %p (index 0x%x)",
371 ioc->name, psge, req_idx));
372
373 /* Start the SGE for the next buffer
374 */
375 psge = (char *) (ioc->ChainBuffer + chain_dma_off);
376 sgeOffset = 0;
377 sg_done = 0;
378
379 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Chain buff @ %p (index 0x%x)\n",
380 ioc->name, psge, chain_idx));
381
382 /* Start the SGE for the next buffer
383 */
384
385 goto nextSGEset;
386 }
387
388 return SUCCESS;
389} /* mptscsih_AddSGE() */
390
391static void
392mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
393 U32 SlotStatus)
394{
395 MPT_FRAME_HDR *mf;
396 SEPRequest_t *SEPMsg;
397
398 if (ioc->bus_type != SAS)
399 return;
400
401 /* Not supported for hidden raid components
402 */
403 if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
404 return;
405
406 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
407 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
408 ioc->name,__func__));
409 return;
410 }
411
412 SEPMsg = (SEPRequest_t *)mf;
413 SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
414 SEPMsg->Bus = vtarget->channel;
415 SEPMsg->TargetID = vtarget->id;
416 SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
417 SEPMsg->SlotStatus = SlotStatus;
418 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
419 "Sending SEP cmd=%x channel=%d id=%d\n",
420 ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
421 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
422}
423
424#ifdef CONFIG_FUSION_LOGGING
425/**
426 * mptscsih_info_scsiio - debug print info on reply frame
427 * @ioc: Pointer to MPT_ADAPTER structure
428 * @sc: original scsi cmnd pointer
429 * @pScsiReply: Pointer to MPT reply frame
430 *
431 * MPT_DEBUG_REPLY needs to be enabled to obtain this info
432 *
433 * Refer to lsi/mpi.h.
434 **/
435static void
436mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
437{
438 char *desc = NULL;
439 char *desc1 = NULL;
440 u16 ioc_status;
441 u8 skey, asc, ascq;
442
443 ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
444
445 switch (ioc_status) {
446
447 case MPI_IOCSTATUS_SUCCESS:
448 desc = "success";
449 break;
450 case MPI_IOCSTATUS_SCSI_INVALID_BUS:
451 desc = "invalid bus";
452 break;
453 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
454 desc = "invalid target_id";
455 break;
456 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
457 desc = "device not there";
458 break;
459 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
460 desc = "data overrun";
461 break;
462 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
463 desc = "data underrun";
464 break;
465 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
466 desc = "I/O data error";
467 break;
468 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
469 desc = "protocol error";
470 break;
471 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
472 desc = "task terminated";
473 break;
474 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
475 desc = "residual mismatch";
476 break;
477 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
478 desc = "task management failed";
479 break;
480 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
481 desc = "IOC terminated";
482 break;
483 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
484 desc = "ext terminated";
485 break;
486 default:
487 desc = "";
488 break;
489 }
490
491 switch (pScsiReply->SCSIStatus)
492 {
493
494 case MPI_SCSI_STATUS_SUCCESS:
495 desc1 = "success";
496 break;
497 case MPI_SCSI_STATUS_CHECK_CONDITION:
498 desc1 = "check condition";
499 break;
500 case MPI_SCSI_STATUS_CONDITION_MET:
501 desc1 = "condition met";
502 break;
503 case MPI_SCSI_STATUS_BUSY:
504 desc1 = "busy";
505 break;
506 case MPI_SCSI_STATUS_INTERMEDIATE:
507 desc1 = "intermediate";
508 break;
509 case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET:
510 desc1 = "intermediate condmet";
511 break;
512 case MPI_SCSI_STATUS_RESERVATION_CONFLICT:
513 desc1 = "reservation conflict";
514 break;
515 case MPI_SCSI_STATUS_COMMAND_TERMINATED:
516 desc1 = "command terminated";
517 break;
518 case MPI_SCSI_STATUS_TASK_SET_FULL:
519 desc1 = "task set full";
520 break;
521 case MPI_SCSI_STATUS_ACA_ACTIVE:
522 desc1 = "aca active";
523 break;
524 case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT:
525 desc1 = "fcpext device logged out";
526 break;
527 case MPI_SCSI_STATUS_FCPEXT_NO_LINK:
528 desc1 = "fcpext no link";
529 break;
530 case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED:
531 desc1 = "fcpext unassigned";
532 break;
533 default:
534 desc1 = "";
535 break;
536 }
537
538 scsi_print_command(sc);
539 printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %d\n",
540 ioc->name, pScsiReply->Bus, pScsiReply->TargetID, sc->device->lun);
541 printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
542 "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
543 scsi_get_resid(sc));
544 printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, "
545 "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag),
546 le32_to_cpu(pScsiReply->TransferCount), sc->result);
547
548 printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), "
549 "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
550 ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus,
551 pScsiReply->SCSIState);
552
553 if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
554 skey = sc->sense_buffer[2] & 0x0F;
555 asc = sc->sense_buffer[12];
556 ascq = sc->sense_buffer[13];
557
558 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: "
559 "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq);
560 }
561
562 /*
563 * Look for + dump FCP ResponseInfo[]!
564 */
565 if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
566 pScsiReply->ResponseInfo)
567 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n",
568 ioc->name, le32_to_cpu(pScsiReply->ResponseInfo));
569}
570#endif
571
572/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
573/*
574 * mptscsih_io_done - Main SCSI IO callback routine registered to
575 * Fusion MPT (base) driver
576 * @ioc: Pointer to MPT_ADAPTER structure
577 * @mf: Pointer to original MPT request frame
578 * @r: Pointer to MPT reply frame (NULL if TurboReply)
579 *
580 * This routine is called from mpt.c::mpt_interrupt() at the completion
581 * of any SCSI IO request.
582 * This routine is registered with the Fusion MPT (base) driver at driver
583 * load/init time via the mpt_register() API call.
584 *
585 * Returns 1 indicating alloc'd request frame ptr should be freed.
586 */
587int
588mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
589{
590 struct scsi_cmnd *sc;
591 MPT_SCSI_HOST *hd;
592 SCSIIORequest_t *pScsiReq;
593 SCSIIOReply_t *pScsiReply;
594 u16 req_idx, req_idx_MR;
595 VirtDevice *vdevice;
596 VirtTarget *vtarget;
597
598 hd = shost_priv(ioc->sh);
599 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
600 req_idx_MR = (mr != NULL) ?
601 le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
602
603 /* Special case, where already freed message frame is received from
604 * Firmware. It happens with Resetting IOC.
605 * Return immediately. Do not care
606 */
607 if ((req_idx != req_idx_MR) ||
608 (le32_to_cpu(mf->u.frame.linkage.arg1) == 0xdeadbeaf))
609 return 0;
610
611 sc = mptscsih_getclear_scsi_lookup(ioc, req_idx);
612 if (sc == NULL) {
613 MPIHeader_t *hdr = (MPIHeader_t *)mf;
614
615 /* Remark: writeSDP1 will use the ScsiDoneCtx
616 * If a SCSI I/O cmd, device disabled by OS and
617 * completion done. Cannot touch sc struct. Just free mem.
618 */
619 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST)
620 printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n",
621 ioc->name);
622
623 mptscsih_freeChainBuffers(ioc, req_idx);
624 return 1;
625 }
626
627 if ((unsigned char *)mf != sc->host_scribble) {
628 mptscsih_freeChainBuffers(ioc, req_idx);
629 return 1;
630 }
631
632 if (ioc->bus_type == SAS) {
633 VirtDevice *vdevice = sc->device->hostdata;
634
635 if (!vdevice || !vdevice->vtarget ||
636 vdevice->vtarget->deleted) {
637 sc->result = DID_NO_CONNECT << 16;
638 goto out;
639 }
640 }
641
642 sc->host_scribble = NULL;
643 sc->result = DID_OK << 16; /* Set default reply as OK */
644 pScsiReq = (SCSIIORequest_t *) mf;
645 pScsiReply = (SCSIIOReply_t *) mr;
646
647 if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
648 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
649 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n",
650 ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag));
651 }else{
652 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
653 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
654 ioc->name, mf, mr, sc, req_idx));
655 }
656
657 if (pScsiReply == NULL) {
658 /* special context reply handling */
659 ;
660 } else {
661 u32 xfer_cnt;
662 u16 status;
663 u8 scsi_state, scsi_status;
664 u32 log_info;
665
666 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
667
668 scsi_state = pScsiReply->SCSIState;
669 scsi_status = pScsiReply->SCSIStatus;
670 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
671 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
672 log_info = le32_to_cpu(pScsiReply->IOCLogInfo);
673
674 /*
675 * if we get a data underrun indication, yet no data was
676 * transferred and the SCSI status indicates that the
677 * command was never started, change the data underrun
678 * to success
679 */
680 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
681 (scsi_status == MPI_SCSI_STATUS_BUSY ||
682 scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT ||
683 scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) {
684 status = MPI_IOCSTATUS_SUCCESS;
685 }
686
687 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
688 mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);
689
690 /*
691 * Look for + dump FCP ResponseInfo[]!
692 */
693 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
694 pScsiReply->ResponseInfo) {
695 printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%d] "
696 "FCP_ResponseInfo=%08xh\n", ioc->name,
697 sc->device->host->host_no, sc->device->channel,
698 sc->device->id, sc->device->lun,
699 le32_to_cpu(pScsiReply->ResponseInfo));
700 }
701
702 switch(status) {
703 case MPI_IOCSTATUS_BUSY: /* 0x0002 */
704 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES: /* 0x0006 */
705 /* CHECKME!
706 * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry)
707 * But not: DID_BUS_BUSY lest one risk
708 * killing interrupt handler:-(
709 */
710 sc->result = SAM_STAT_BUSY;
711 break;
712
713 case MPI_IOCSTATUS_SCSI_INVALID_BUS: /* 0x0041 */
714 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID: /* 0x0042 */
715 sc->result = DID_BAD_TARGET << 16;
716 break;
717
718 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
719 /* Spoof to SCSI Selection Timeout! */
720 if (ioc->bus_type != FC)
721 sc->result = DID_NO_CONNECT << 16;
722 /* else fibre, just stall until rescan event */
723 else
724 sc->result = DID_REQUEUE << 16;
725
726 if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
727 hd->sel_timeout[pScsiReq->TargetID]++;
728
729 vdevice = sc->device->hostdata;
730 if (!vdevice)
731 break;
732 vtarget = vdevice->vtarget;
733 if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) {
734 mptscsih_issue_sep_command(ioc, vtarget,
735 MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED);
736 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON;
737 }
738 break;
739
740 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
741 if ( ioc->bus_type == SAS ) {
742 u16 ioc_status =
743 le16_to_cpu(pScsiReply->IOCStatus);
744 if ((ioc_status &
745 MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
746 &&
747 ((log_info & SAS_LOGINFO_MASK) ==
748 SAS_LOGINFO_NEXUS_LOSS)) {
749 VirtDevice *vdevice =
750 sc->device->hostdata;
751
752 /* flag the device as being in
753 * device removal delay so we can
754 * notify the midlayer to hold off
755 * on timeout eh */
756 if (vdevice && vdevice->
757 vtarget &&
758 vdevice->vtarget->
759 raidVolume)
760 printk(KERN_INFO
761 "Skipping Raid Volume"
762 "for inDMD\n");
763 else if (vdevice &&
764 vdevice->vtarget)
765 vdevice->vtarget->
766 inDMD = 1;
767
768 sc->result =
769 (DID_TRANSPORT_DISRUPTED
770 << 16);
771 break;
772 }
773 } else if (ioc->bus_type == FC) {
774 /*
775 * The FC IOC may kill a request for variety of
776 * reasons, some of which may be recovered by a
777 * retry, some which are unlikely to be
778 * recovered. Return DID_ERROR instead of
779 * DID_RESET to permit retry of the command,
780 * just not an infinite number of them
781 */
782 sc->result = DID_ERROR << 16;
783 break;
784 }
785
786 /*
787 * Allow non-SAS & non-NEXUS_LOSS to drop into below code
788 */
789
790 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
791 /* Linux handles an unsolicited DID_RESET better
792 * than an unsolicited DID_ABORT.
793 */
794 sc->result = DID_RESET << 16;
795 break;
796
797 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
798 if (ioc->bus_type == FC)
799 sc->result = DID_ERROR << 16;
800 else
801 sc->result = DID_RESET << 16;
802 break;
803
804 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: /* 0x0049 */
805 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
806 if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
807 sc->result=DID_SOFT_ERROR << 16;
808 else /* Sufficient data transfer occurred */
809 sc->result = (DID_OK << 16) | scsi_status;
810 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
811 "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
812 ioc->name, sc->result, sc->device->channel, sc->device->id));
813 break;
814
815 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
816 /*
817 * Do upfront check for valid SenseData and give it
818 * precedence!
819 */
820 sc->result = (DID_OK << 16) | scsi_status;
821 if (!(scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
822
823 /*
824 * For an Errata on LSI53C1030
825 * When the length of request data
826 * and transfer data are different
827 * with result of command (READ or VERIFY),
828 * DID_SOFT_ERROR is set.
829 */
830 if (ioc->bus_type == SPI) {
831 if ((pScsiReq->CDB[0] == READ_6 && ((pScsiReq->CDB[1] & 0x02) == 0)) ||
832 pScsiReq->CDB[0] == READ_10 ||
833 pScsiReq->CDB[0] == READ_12 ||
834 (pScsiReq->CDB[0] == READ_16 &&
835 ((pScsiReq->CDB[1] & 0x02) == 0)) ||
836 pScsiReq->CDB[0] == VERIFY ||
837 pScsiReq->CDB[0] == VERIFY_16) {
838 if (scsi_bufflen(sc) !=
839 xfer_cnt) {
840 sc->result =
841 DID_SOFT_ERROR << 16;
842 printk(KERN_WARNING "Errata"
843 "on LSI53C1030 occurred."
844 "sc->req_bufflen=0x%02x,"
845 "xfer_cnt=0x%02x\n",
846 scsi_bufflen(sc),
847 xfer_cnt);
848 }
849 }
850 }
851
852 if (xfer_cnt < sc->underflow) {
853 if (scsi_status == SAM_STAT_BUSY)
854 sc->result = SAM_STAT_BUSY;
855 else
856 sc->result = DID_SOFT_ERROR << 16;
857 }
858 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
859 /* What to do?
860 */
861 sc->result = DID_SOFT_ERROR << 16;
862 }
863 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
864 /* Not real sure here either... */
865 sc->result = DID_RESET << 16;
866 }
867 }
868
869
870 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
871 " sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
872 ioc->name, sc->underflow));
873 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
874 " ActBytesXferd=%02xh\n", ioc->name, xfer_cnt));
875
876 /* Report Queue Full
877 */
878 if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
879 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
880
881 break;
882
883 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: /* 0x0044 */
884 scsi_set_resid(sc, 0);
885 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
886 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
887 sc->result = (DID_OK << 16) | scsi_status;
888 if (scsi_state == 0) {
889 ;
890 } else if (scsi_state &
891 MPI_SCSI_STATE_AUTOSENSE_VALID) {
892
893 /*
894 * For potential trouble on LSI53C1030.
895 * (date:2007.xx.)
896 * It is checked whether the length of
897 * request data is equal to
898 * the length of transfer and residual.
899 * MEDIUM_ERROR is set by incorrect data.
900 */
901 if ((ioc->bus_type == SPI) &&
902 (sc->sense_buffer[2] & 0x20)) {
903 u32 difftransfer;
904 difftransfer =
905 sc->sense_buffer[3] << 24 |
906 sc->sense_buffer[4] << 16 |
907 sc->sense_buffer[5] << 8 |
908 sc->sense_buffer[6];
909 if (((sc->sense_buffer[3] & 0x80) ==
910 0x80) && (scsi_bufflen(sc)
911 != xfer_cnt)) {
912 sc->sense_buffer[2] =
913 MEDIUM_ERROR;
914 sc->sense_buffer[12] = 0xff;
915 sc->sense_buffer[13] = 0xff;
916 printk(KERN_WARNING"Errata"
917 "on LSI53C1030 occurred."
918 "sc->req_bufflen=0x%02x,"
919 "xfer_cnt=0x%02x\n" ,
920 scsi_bufflen(sc),
921 xfer_cnt);
922 }
923 if (((sc->sense_buffer[3] & 0x80)
924 != 0x80) &&
925 (scsi_bufflen(sc) !=
926 xfer_cnt + difftransfer)) {
927 sc->sense_buffer[2] =
928 MEDIUM_ERROR;
929 sc->sense_buffer[12] = 0xff;
930 sc->sense_buffer[13] = 0xff;
931 printk(KERN_WARNING
932 "Errata on LSI53C1030 occurred"
933 "sc->req_bufflen=0x%02x,"
934 " xfer_cnt=0x%02x,"
935 "difftransfer=0x%02x\n",
936 scsi_bufflen(sc),
937 xfer_cnt,
938 difftransfer);
939 }
940 }
941
942 /*
943 * If running against circa 200003dd 909 MPT f/w,
944 * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
945 * (QUEUE_FULL) returned from device! --> get 0x0000?128
946 * and with SenseBytes set to 0.
947 */
948 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
949 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
950
951 }
952 else if (scsi_state &
953 (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
954 ) {
955 /*
956 * What to do?
957 */
958 sc->result = DID_SOFT_ERROR << 16;
959 }
960 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
961 /* Not real sure here either... */
962 sc->result = DID_RESET << 16;
963 }
964 else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
965 /* Device Inq. data indicates that it supports
966 * QTags, but rejects QTag messages.
967 * This command completed OK.
968 *
969 * Not real sure here either so do nothing... */
970 }
971
972 if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
973 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
974
975 /* Add handling of:
976 * Reservation Conflict, Busy,
977 * Command Terminated, CHECK
978 */
979 break;
980
981 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
982 sc->result = DID_SOFT_ERROR << 16;
983 break;
984
985 case MPI_IOCSTATUS_INVALID_FUNCTION: /* 0x0001 */
986 case MPI_IOCSTATUS_INVALID_SGL: /* 0x0003 */
987 case MPI_IOCSTATUS_INTERNAL_ERROR: /* 0x0004 */
988 case MPI_IOCSTATUS_RESERVED: /* 0x0005 */
989 case MPI_IOCSTATUS_INVALID_FIELD: /* 0x0007 */
990 case MPI_IOCSTATUS_INVALID_STATE: /* 0x0008 */
991 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
992 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED: /* 0x004A */
993 default:
994 /*
995 * What to do?
996 */
997 sc->result = DID_SOFT_ERROR << 16;
998 break;
999
1000 } /* switch(status) */
1001
1002#ifdef CONFIG_FUSION_LOGGING
1003 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
1004 mptscsih_info_scsiio(ioc, sc, pScsiReply);
1005#endif
1006
1007 } /* end of address reply case */
1008out:
1009 /* Unmap the DMA buffers, if any. */
1010 scsi_dma_unmap(sc);
1011
1012 sc->scsi_done(sc); /* Issue the command callback */
1013
1014 /* Free Chain buffers */
1015 mptscsih_freeChainBuffers(ioc, req_idx);
1016 return 1;
1017}
1018
1019/*
1020 * mptscsih_flush_running_cmds - For each command found, search
1021 * Scsi_Host instance taskQ and reply to OS.
1022 * Called only if recovering from a FW reload.
1023 * @hd: Pointer to a SCSI HOST structure
1024 *
1025 * Returns: None.
1026 *
1027 * Must be called while new I/Os are being queued.
1028 */
1029void
1030mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
1031{
1032 MPT_ADAPTER *ioc = hd->ioc;
1033 struct scsi_cmnd *sc;
1034 SCSIIORequest_t *mf = NULL;
1035 int ii;
1036 int channel, id;
1037
1038 for (ii= 0; ii < ioc->req_depth; ii++) {
1039 sc = mptscsih_getclear_scsi_lookup(ioc, ii);
1040 if (!sc)
1041 continue;
1042 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1043 if (!mf)
1044 continue;
1045 channel = mf->Bus;
1046 id = mf->TargetID;
1047 mptscsih_freeChainBuffers(ioc, ii);
1048 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1049 if ((unsigned char *)mf != sc->host_scribble)
1050 continue;
1051 scsi_dma_unmap(sc);
1052 sc->result = DID_RESET << 16;
1053 sc->host_scribble = NULL;
1054 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
1055 "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, "
1056 "idx=%x\n", ioc->name, channel, id, sc, mf, ii));
1057 sc->scsi_done(sc);
1058 }
1059}
1060EXPORT_SYMBOL(mptscsih_flush_running_cmds);
1061
1062/*
1063 * mptscsih_search_running_cmds - Delete any commands associated
1064 * with the specified target and lun. Function called only
1065 * when a lun is disable by mid-layer.
1066 * Do NOT access the referenced scsi_cmnd structure or
1067 * members. Will cause either a paging or NULL ptr error.
1068 * (BUT, BUT, BUT, the code does reference it! - mdr)
1069 * @hd: Pointer to a SCSI HOST structure
1070 * @vdevice: per device private data
1071 *
1072 * Returns: None.
1073 *
1074 * Called from slave_destroy.
1075 */
1076static void
1077mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
1078{
1079 SCSIIORequest_t *mf = NULL;
1080 int ii;
1081 struct scsi_cmnd *sc;
1082 struct scsi_lun lun;
1083 MPT_ADAPTER *ioc = hd->ioc;
1084 unsigned long flags;
1085
1086 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1087 for (ii = 0; ii < ioc->req_depth; ii++) {
1088 if ((sc = ioc->ScsiLookup[ii]) != NULL) {
1089
1090 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1091 if (mf == NULL)
1092 continue;
1093 /* If the device is a hidden raid component, then its
1094 * expected that the mf->function will be RAID_SCSI_IO
1095 */
1096 if (vdevice->vtarget->tflags &
1097 MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
1098 MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
1099 continue;
1100
1101 int_to_scsilun(vdevice->lun, &lun);
1102 if ((mf->Bus != vdevice->vtarget->channel) ||
1103 (mf->TargetID != vdevice->vtarget->id) ||
1104 memcmp(lun.scsi_lun, mf->LUN, 8))
1105 continue;
1106
1107 if ((unsigned char *)mf != sc->host_scribble)
1108 continue;
1109 ioc->ScsiLookup[ii] = NULL;
1110 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1111 mptscsih_freeChainBuffers(ioc, ii);
1112 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1113 scsi_dma_unmap(sc);
1114 sc->host_scribble = NULL;
1115 sc->result = DID_NO_CONNECT << 16;
1116 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device,
1117 MYIOC_s_FMT "completing cmds: fw_channel %d, "
1118 "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name,
1119 vdevice->vtarget->channel, vdevice->vtarget->id,
1120 sc, mf, ii));
1121 sc->scsi_done(sc);
1122 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1123 }
1124 }
1125 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1126 return;
1127}
1128
1129/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1130
1131/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1132/*
1133 * mptscsih_report_queue_full - Report QUEUE_FULL status returned
1134 * from a SCSI target device.
1135 * @sc: Pointer to scsi_cmnd structure
1136 * @pScsiReply: Pointer to SCSIIOReply_t
1137 * @pScsiReq: Pointer to original SCSI request
1138 *
1139 * This routine periodically reports QUEUE_FULL status returned from a
1140 * SCSI target device. It reports this to the console via kernel
1141 * printk() API call, not more than once every 10 seconds.
1142 */
1143static void
1144mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1145{
1146 long time = jiffies;
1147 MPT_SCSI_HOST *hd;
1148 MPT_ADAPTER *ioc;
1149
1150 if (sc->device == NULL)
1151 return;
1152 if (sc->device->host == NULL)
1153 return;
1154 if ((hd = shost_priv(sc->device->host)) == NULL)
1155 return;
1156 ioc = hd->ioc;
1157 if (time - hd->last_queue_full > 10 * HZ) {
1158 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n",
1159 ioc->name, 0, sc->device->id, sc->device->lun));
1160 hd->last_queue_full = time;
1161 }
1162}
1163
1164/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1165/*
1166 * mptscsih_remove - Removed scsi devices
1167 * @pdev: Pointer to pci_dev structure
1168 *
1169 *
1170 */
1171void
1172mptscsih_remove(struct pci_dev *pdev)
1173{
1174 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1175 struct Scsi_Host *host = ioc->sh;
1176 MPT_SCSI_HOST *hd;
1177 int sz1;
1178
1179 scsi_remove_host(host);
1180
1181 if((hd = shost_priv(host)) == NULL)
1182 return;
1183
1184 mptscsih_shutdown(pdev);
1185
1186 sz1=0;
1187
1188 if (ioc->ScsiLookup != NULL) {
1189 sz1 = ioc->req_depth * sizeof(void *);
1190 kfree(ioc->ScsiLookup);
1191 ioc->ScsiLookup = NULL;
1192 }
1193
1194 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1195 "Free'd ScsiLookup (%d) memory\n",
1196 ioc->name, sz1));
1197
1198 kfree(hd->info_kbuf);
1199
1200 /* NULL the Scsi_Host pointer
1201 */
1202 ioc->sh = NULL;
1203
1204 scsi_host_put(host);
1205
1206 mpt_detach(pdev);
1207
1208}
1209
1210/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1211/*
1212 * mptscsih_shutdown - reboot notifier
1213 *
1214 */
1215void
1216mptscsih_shutdown(struct pci_dev *pdev)
1217{
1218}
1219
1220#ifdef CONFIG_PM
1221/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1222/*
1223 * mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1224 *
1225 *
1226 */
1227int
1228mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1229{
1230 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1231
1232 scsi_block_requests(ioc->sh);
1233 flush_scheduled_work();
1234 mptscsih_shutdown(pdev);
1235 return mpt_suspend(pdev,state);
1236}
1237
1238/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1239/*
1240 * mptscsih_resume - Fusion MPT scsi driver resume routine.
1241 *
1242 *
1243 */
1244int
1245mptscsih_resume(struct pci_dev *pdev)
1246{
1247 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1248 int rc;
1249
1250 rc = mpt_resume(pdev);
1251 scsi_unblock_requests(ioc->sh);
1252 return rc;
1253}
1254
1255#endif
1256
1257/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1258/**
1259 * mptscsih_info - Return information about MPT adapter
1260 * @SChost: Pointer to Scsi_Host structure
1261 *
1262 * (linux scsi_host_template.info routine)
1263 *
1264 * Returns pointer to buffer where information was written.
1265 */
1266const char *
1267mptscsih_info(struct Scsi_Host *SChost)
1268{
1269 MPT_SCSI_HOST *h;
1270 int size = 0;
1271
1272 h = shost_priv(SChost);
1273
1274 if (h) {
1275 if (h->info_kbuf == NULL)
1276 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1277 return h->info_kbuf;
1278 h->info_kbuf[0] = '\0';
1279
1280 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1281 h->info_kbuf[size-1] = '\0';
1282 }
1283
1284 return h->info_kbuf;
1285}
1286
1287int mptscsih_show_info(struct seq_file *m, struct Scsi_Host *host)
1288{
1289 MPT_SCSI_HOST *hd = shost_priv(host);
1290 MPT_ADAPTER *ioc = hd->ioc;
1291
1292 seq_printf(m, "%s: %s, ", ioc->name, ioc->prod_name);
1293 seq_printf(m, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1294 seq_printf(m, "Ports=%d, ", ioc->facts.NumberOfPorts);
1295 seq_printf(m, "MaxQ=%d\n", ioc->req_depth);
1296
1297 return 0;
1298}
1299
1300/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1301#define ADD_INDEX_LOG(req_ent) do { } while(0)
1302
1303/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1304/**
1305 * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1306 * @SCpnt: Pointer to scsi_cmnd structure
1307 * @done: Pointer SCSI mid-layer IO completion function
1308 *
1309 * (linux scsi_host_template.queuecommand routine)
1310 * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest
1311 * from a linux scsi_cmnd request and send it to the IOC.
1312 *
1313 * Returns 0. (rtn value discarded by linux scsi mid-layer)
1314 */
1315int
1316mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1317{
1318 MPT_SCSI_HOST *hd;
1319 MPT_FRAME_HDR *mf;
1320 SCSIIORequest_t *pScsiReq;
1321 VirtDevice *vdevice = SCpnt->device->hostdata;
1322 u32 datalen;
1323 u32 scsictl;
1324 u32 scsidir;
1325 u32 cmd_len;
1326 int my_idx;
1327 int ii;
1328 MPT_ADAPTER *ioc;
1329
1330 hd = shost_priv(SCpnt->device->host);
1331 ioc = hd->ioc;
1332 SCpnt->scsi_done = done;
1333
1334 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
1335 ioc->name, SCpnt, done));
1336
1337 if (ioc->taskmgmt_quiesce_io)
1338 return SCSI_MLQUEUE_HOST_BUSY;
1339
1340 /*
1341 * Put together a MPT SCSI request...
1342 */
1343 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1344 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1345 ioc->name));
1346 return SCSI_MLQUEUE_HOST_BUSY;
1347 }
1348
1349 pScsiReq = (SCSIIORequest_t *) mf;
1350
1351 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1352
1353 ADD_INDEX_LOG(my_idx);
1354
1355 /* TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1356 * Seems we may receive a buffer (datalen>0) even when there
1357 * will be no data transfer! GRRRRR...
1358 */
1359 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1360 datalen = scsi_bufflen(SCpnt);
1361 scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */
1362 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1363 datalen = scsi_bufflen(SCpnt);
1364 scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */
1365 } else {
1366 datalen = 0;
1367 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1368 }
1369
1370 /* Default to untagged. Once a target structure has been allocated,
1371 * use the Inquiry data to determine if device supports tagged.
1372 */
1373 if (vdevice
1374 && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1375 && (SCpnt->device->tagged_supported)) {
1376 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1377 if (SCpnt->request && SCpnt->request->ioprio) {
1378 if (((SCpnt->request->ioprio & 0x7) == 1) ||
1379 !(SCpnt->request->ioprio & 0x7))
1380 scsictl |= MPI_SCSIIO_CONTROL_HEADOFQ;
1381 }
1382 } else
1383 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1384
1385
1386 /* Use the above information to set up the message frame
1387 */
1388 pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1389 pScsiReq->Bus = vdevice->vtarget->channel;
1390 pScsiReq->ChainOffset = 0;
1391 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
1392 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1393 else
1394 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1395 pScsiReq->CDBLength = SCpnt->cmd_len;
1396 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1397 pScsiReq->Reserved = 0;
1398 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1399 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1400 pScsiReq->Control = cpu_to_le32(scsictl);
1401
1402 /*
1403 * Write SCSI CDB into the message
1404 */
1405 cmd_len = SCpnt->cmd_len;
1406 for (ii=0; ii < cmd_len; ii++)
1407 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1408
1409 for (ii=cmd_len; ii < 16; ii++)
1410 pScsiReq->CDB[ii] = 0;
1411
1412 /* DataLength */
1413 pScsiReq->DataLength = cpu_to_le32(datalen);
1414
1415 /* SenseBuffer low address */
1416 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1417 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1418
1419 /* Now add the SG list
1420 * Always have a SGE even if null length.
1421 */
1422 if (datalen == 0) {
1423 /* Add a NULL SGE */
1424 ioc->add_sge((char *)&pScsiReq->SGL,
1425 MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1426 (dma_addr_t) -1);
1427 } else {
1428 /* Add a 32 or 64 bit SGE */
1429 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1430 goto fail;
1431 }
1432
1433 SCpnt->host_scribble = (unsigned char *)mf;
1434 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1435
1436 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1437 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1438 ioc->name, SCpnt, mf, my_idx));
1439 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1440 return 0;
1441
1442 fail:
1443 mptscsih_freeChainBuffers(ioc, my_idx);
1444 mpt_free_msg_frame(ioc, mf);
1445 return SCSI_MLQUEUE_HOST_BUSY;
1446}
1447
1448/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1449/*
1450 * mptscsih_freeChainBuffers - Function to free chain buffers associated
1451 * with a SCSI IO request
1452 * @hd: Pointer to the MPT_SCSI_HOST instance
1453 * @req_idx: Index of the SCSI IO request frame.
1454 *
1455 * Called if SG chain buffer allocation fails and mptscsih callbacks.
1456 * No return.
1457 */
1458static void
1459mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1460{
1461 MPT_FRAME_HDR *chain;
1462 unsigned long flags;
1463 int chain_idx;
1464 int next;
1465
1466 /* Get the first chain index and reset
1467 * tracker state.
1468 */
1469 chain_idx = ioc->ReqToChain[req_idx];
1470 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1471
1472 while (chain_idx != MPT_HOST_NO_CHAIN) {
1473
1474 /* Save the next chain buffer index */
1475 next = ioc->ChainToChain[chain_idx];
1476
1477 /* Free this chain buffer and reset
1478 * tracker
1479 */
1480 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1481
1482 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1483 + (chain_idx * ioc->req_sz));
1484
1485 spin_lock_irqsave(&ioc->FreeQlock, flags);
1486 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1487 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1488
1489 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1490 ioc->name, chain_idx));
1491
1492 /* handle next */
1493 chain_idx = next;
1494 }
1495 return;
1496}
1497
1498/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1499/*
1500 * Reset Handling
1501 */
1502
1503/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1504/**
1505 * mptscsih_IssueTaskMgmt - Generic send Task Management function.
1506 * @hd: Pointer to MPT_SCSI_HOST structure
1507 * @type: Task Management type
1508 * @channel: channel number for task management
1509 * @id: Logical Target ID for reset (if appropriate)
1510 * @lun: Logical Unit for reset (if appropriate)
1511 * @ctx2abort: Context for the task to be aborted (if appropriate)
1512 * @timeout: timeout for task management control
1513 *
1514 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1515 * or a non-interrupt thread. In the former, must not call schedule().
1516 *
1517 * Not all fields are meaningfull for all task types.
1518 *
1519 * Returns 0 for SUCCESS, or FAILED.
1520 *
1521 **/
1522int
1523mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun,
1524 int ctx2abort, ulong timeout)
1525{
1526 MPT_FRAME_HDR *mf;
1527 SCSITaskMgmt_t *pScsiTm;
1528 int ii;
1529 int retval;
1530 MPT_ADAPTER *ioc = hd->ioc;
1531 unsigned long timeleft;
1532 u8 issue_hard_reset;
1533 u32 ioc_raw_state;
1534 unsigned long time_count;
1535
1536 issue_hard_reset = 0;
1537 ioc_raw_state = mpt_GetIocState(ioc, 0);
1538
1539 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1540 printk(MYIOC_s_WARN_FMT
1541 "TaskMgmt type=%x: IOC Not operational (0x%x)!\n",
1542 ioc->name, type, ioc_raw_state);
1543 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
1544 ioc->name, __func__);
1545 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1546 printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset "
1547 "FAILED!!\n", ioc->name);
1548 return 0;
1549 }
1550
1551 /* DOORBELL ACTIVE check is not required if
1552 * MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported.
1553 */
1554
1555 if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q)
1556 && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) &&
1557 (ioc_raw_state & MPI_DOORBELL_ACTIVE)) {
1558 printk(MYIOC_s_WARN_FMT
1559 "TaskMgmt type=%x: ioc_state: "
1560 "DOORBELL_ACTIVE (0x%x)!\n",
1561 ioc->name, type, ioc_raw_state);
1562 return FAILED;
1563 }
1564
1565 mutex_lock(&ioc->taskmgmt_cmds.mutex);
1566 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
1567 mf = NULL;
1568 retval = FAILED;
1569 goto out;
1570 }
1571
1572 /* Return Fail to calling function if no message frames available.
1573 */
1574 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1575 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1576 "TaskMgmt no msg frames!!\n", ioc->name));
1577 retval = FAILED;
1578 mpt_clear_taskmgmt_in_progress_flag(ioc);
1579 goto out;
1580 }
1581 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
1582 ioc->name, mf));
1583
1584 /* Format the Request
1585 */
1586 pScsiTm = (SCSITaskMgmt_t *) mf;
1587 pScsiTm->TargetID = id;
1588 pScsiTm->Bus = channel;
1589 pScsiTm->ChainOffset = 0;
1590 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1591
1592 pScsiTm->Reserved = 0;
1593 pScsiTm->TaskType = type;
1594 pScsiTm->Reserved1 = 0;
1595 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1596 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1597
1598 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1599
1600 for (ii=0; ii < 7; ii++)
1601 pScsiTm->Reserved2[ii] = 0;
1602
1603 pScsiTm->TaskMsgContext = ctx2abort;
1604
1605 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) "
1606 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort,
1607 type, timeout));
1608
1609 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1610
1611 INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1612 time_count = jiffies;
1613 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1614 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1615 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1616 else {
1617 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1618 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1619 if (retval) {
1620 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1621 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n",
1622 ioc->name, mf, retval));
1623 mpt_free_msg_frame(ioc, mf);
1624 mpt_clear_taskmgmt_in_progress_flag(ioc);
1625 goto out;
1626 }
1627 }
1628
1629 timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
1630 timeout*HZ);
1631 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
1632 retval = FAILED;
1633 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
1634 "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf));
1635 mpt_clear_taskmgmt_in_progress_flag(ioc);
1636 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
1637 goto out;
1638 issue_hard_reset = 1;
1639 goto out;
1640 }
1641
1642 retval = mptscsih_taskmgmt_reply(ioc, type,
1643 (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply);
1644
1645 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1646 "TaskMgmt completed (%d seconds)\n",
1647 ioc->name, jiffies_to_msecs(jiffies - time_count)/1000));
1648
1649 out:
1650
1651 CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1652 if (issue_hard_reset) {
1653 printk(MYIOC_s_WARN_FMT
1654 "Issuing Reset from %s!! doorbell=0x%08x\n",
1655 ioc->name, __func__, mpt_GetIocState(ioc, 0));
1656 retval = (ioc->bus_type == SAS) ?
1657 mpt_HardResetHandler(ioc, CAN_SLEEP) :
1658 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1659 mpt_free_msg_frame(ioc, mf);
1660 }
1661
1662 retval = (retval == 0) ? 0 : FAILED;
1663 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
1664 return retval;
1665}
1666EXPORT_SYMBOL(mptscsih_IssueTaskMgmt);
1667
1668static int
1669mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1670{
1671 switch (ioc->bus_type) {
1672 case FC:
1673 return 40;
1674 case SAS:
1675 return 30;
1676 case SPI:
1677 default:
1678 return 10;
1679 }
1680}
1681
1682/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1683/**
1684 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1685 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1686 *
1687 * (linux scsi_host_template.eh_abort_handler routine)
1688 *
1689 * Returns SUCCESS or FAILED.
1690 **/
1691int
1692mptscsih_abort(struct scsi_cmnd * SCpnt)
1693{
1694 MPT_SCSI_HOST *hd;
1695 MPT_FRAME_HDR *mf;
1696 u32 ctx2abort;
1697 int scpnt_idx;
1698 int retval;
1699 VirtDevice *vdevice;
1700 MPT_ADAPTER *ioc;
1701
1702 /* If we can't locate our host adapter structure, return FAILED status.
1703 */
1704 if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1705 SCpnt->result = DID_RESET << 16;
1706 SCpnt->scsi_done(SCpnt);
1707 printk(KERN_ERR MYNAM ": task abort: "
1708 "can't locate host! (sc=%p)\n", SCpnt);
1709 return FAILED;
1710 }
1711
1712 ioc = hd->ioc;
1713 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1714 ioc->name, SCpnt);
1715 scsi_print_command(SCpnt);
1716
1717 vdevice = SCpnt->device->hostdata;
1718 if (!vdevice || !vdevice->vtarget) {
1719 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1720 "task abort: device has been deleted (sc=%p)\n",
1721 ioc->name, SCpnt));
1722 SCpnt->result = DID_NO_CONNECT << 16;
1723 SCpnt->scsi_done(SCpnt);
1724 retval = SUCCESS;
1725 goto out;
1726 }
1727
1728 /* Task aborts are not supported for hidden raid components.
1729 */
1730 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1731 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1732 "task abort: hidden raid component (sc=%p)\n",
1733 ioc->name, SCpnt));
1734 SCpnt->result = DID_RESET << 16;
1735 retval = FAILED;
1736 goto out;
1737 }
1738
1739 /* Task aborts are not supported for volumes.
1740 */
1741 if (vdevice->vtarget->raidVolume) {
1742 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1743 "task abort: raid volume (sc=%p)\n",
1744 ioc->name, SCpnt));
1745 SCpnt->result = DID_RESET << 16;
1746 retval = FAILED;
1747 goto out;
1748 }
1749
1750 /* Find this command
1751 */
1752 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1753 /* Cmd not found in ScsiLookup.
1754 * Do OS callback.
1755 */
1756 SCpnt->result = DID_RESET << 16;
1757 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1758 "Command not in the active list! (sc=%p)\n", ioc->name,
1759 SCpnt));
1760 retval = SUCCESS;
1761 goto out;
1762 }
1763
1764 if (ioc->timeouts < -1)
1765 ioc->timeouts++;
1766
1767 if (mpt_fwfault_debug)
1768 mpt_halt_firmware(ioc);
1769
1770 /* Most important! Set TaskMsgContext to SCpnt's MsgContext!
1771 * (the IO to be ABORT'd)
1772 *
1773 * NOTE: Since we do not byteswap MsgContext, we do not
1774 * swap it here either. It is an opaque cookie to
1775 * the controller, so it does not matter. -DaveM
1776 */
1777 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1778 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1779 retval = mptscsih_IssueTaskMgmt(hd,
1780 MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1781 vdevice->vtarget->channel,
1782 vdevice->vtarget->id, vdevice->lun,
1783 ctx2abort, mptscsih_get_tm_timeout(ioc));
1784
1785 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) {
1786 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1787 "task abort: command still in active list! (sc=%p)\n",
1788 ioc->name, SCpnt));
1789 retval = FAILED;
1790 } else {
1791 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1792 "task abort: command cleared from active list! (sc=%p)\n",
1793 ioc->name, SCpnt));
1794 retval = SUCCESS;
1795 }
1796
1797 out:
1798 printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n",
1799 ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval,
1800 SCpnt);
1801
1802 return retval;
1803}
1804
1805/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1806/**
1807 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant
1808 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1809 *
1810 * (linux scsi_host_template.eh_dev_reset_handler routine)
1811 *
1812 * Returns SUCCESS or FAILED.
1813 **/
1814int
1815mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1816{
1817 MPT_SCSI_HOST *hd;
1818 int retval;
1819 VirtDevice *vdevice;
1820 MPT_ADAPTER *ioc;
1821
1822 /* If we can't locate our host adapter structure, return FAILED status.
1823 */
1824 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1825 printk(KERN_ERR MYNAM ": target reset: "
1826 "Can't locate host! (sc=%p)\n", SCpnt);
1827 return FAILED;
1828 }
1829
1830 ioc = hd->ioc;
1831 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1832 ioc->name, SCpnt);
1833 scsi_print_command(SCpnt);
1834
1835 vdevice = SCpnt->device->hostdata;
1836 if (!vdevice || !vdevice->vtarget) {
1837 retval = 0;
1838 goto out;
1839 }
1840
1841 /* Target reset to hidden raid component is not supported
1842 */
1843 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1844 retval = FAILED;
1845 goto out;
1846 }
1847
1848 retval = mptscsih_IssueTaskMgmt(hd,
1849 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1850 vdevice->vtarget->channel,
1851 vdevice->vtarget->id, 0, 0,
1852 mptscsih_get_tm_timeout(ioc));
1853
1854 out:
1855 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1856 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1857
1858 if (retval == 0)
1859 return SUCCESS;
1860 else
1861 return FAILED;
1862}
1863
1864
1865/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1866/**
1867 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant
1868 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1869 *
1870 * (linux scsi_host_template.eh_bus_reset_handler routine)
1871 *
1872 * Returns SUCCESS or FAILED.
1873 **/
1874int
1875mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1876{
1877 MPT_SCSI_HOST *hd;
1878 int retval;
1879 VirtDevice *vdevice;
1880 MPT_ADAPTER *ioc;
1881
1882 /* If we can't locate our host adapter structure, return FAILED status.
1883 */
1884 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1885 printk(KERN_ERR MYNAM ": bus reset: "
1886 "Can't locate host! (sc=%p)\n", SCpnt);
1887 return FAILED;
1888 }
1889
1890 ioc = hd->ioc;
1891 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1892 ioc->name, SCpnt);
1893 scsi_print_command(SCpnt);
1894
1895 if (ioc->timeouts < -1)
1896 ioc->timeouts++;
1897
1898 vdevice = SCpnt->device->hostdata;
1899 if (!vdevice || !vdevice->vtarget)
1900 return SUCCESS;
1901 retval = mptscsih_IssueTaskMgmt(hd,
1902 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1903 vdevice->vtarget->channel, 0, 0, 0,
1904 mptscsih_get_tm_timeout(ioc));
1905
1906 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1907 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1908
1909 if (retval == 0)
1910 return SUCCESS;
1911 else
1912 return FAILED;
1913}
1914
1915/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1916/**
1917 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1918 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1919 *
1920 * (linux scsi_host_template.eh_host_reset_handler routine)
1921 *
1922 * Returns SUCCESS or FAILED.
1923 */
1924int
1925mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1926{
1927 MPT_SCSI_HOST * hd;
1928 int status = SUCCESS;
1929 MPT_ADAPTER *ioc;
1930 int retval;
1931
1932 /* If we can't locate the host to reset, then we failed. */
1933 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1934 printk(KERN_ERR MYNAM ": host reset: "
1935 "Can't locate host! (sc=%p)\n", SCpnt);
1936 return FAILED;
1937 }
1938
1939 /* make sure we have no outstanding commands at this stage */
1940 mptscsih_flush_running_cmds(hd);
1941
1942 ioc = hd->ioc;
1943 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
1944 ioc->name, SCpnt);
1945
1946 /* If our attempts to reset the host failed, then return a failed
1947 * status. The host will be taken off line by the SCSI mid-layer.
1948 */
1949 retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1950 if (retval < 0)
1951 status = FAILED;
1952 else
1953 status = SUCCESS;
1954
1955 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
1956 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1957
1958 return status;
1959}
1960
1961static int
1962mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
1963 SCSITaskMgmtReply_t *pScsiTmReply)
1964{
1965 u16 iocstatus;
1966 u32 termination_count;
1967 int retval;
1968
1969 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
1970 retval = FAILED;
1971 goto out;
1972 }
1973
1974 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
1975
1976 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
1977 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
1978
1979 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1980 "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n"
1981 "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n"
1982 "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus,
1983 pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus),
1984 le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode,
1985 termination_count));
1986
1987 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
1988 pScsiTmReply->ResponseCode)
1989 mptscsih_taskmgmt_response_code(ioc,
1990 pScsiTmReply->ResponseCode);
1991
1992 if (iocstatus == MPI_IOCSTATUS_SUCCESS) {
1993 retval = 0;
1994 goto out;
1995 }
1996
1997 retval = FAILED;
1998 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1999 if (termination_count == 1)
2000 retval = 0;
2001 goto out;
2002 }
2003
2004 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
2005 iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
2006 retval = 0;
2007
2008 out:
2009 return retval;
2010}
2011
2012/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2013void
2014mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2015{
2016 char *desc;
2017
2018 switch (response_code) {
2019 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2020 desc = "The task completed.";
2021 break;
2022 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2023 desc = "The IOC received an invalid frame status.";
2024 break;
2025 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2026 desc = "The task type is not supported.";
2027 break;
2028 case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2029 desc = "The requested task failed.";
2030 break;
2031 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2032 desc = "The task completed successfully.";
2033 break;
2034 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2035 desc = "The LUN request is invalid.";
2036 break;
2037 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2038 desc = "The task is in the IOC queue and has not been sent to target.";
2039 break;
2040 default:
2041 desc = "unknown";
2042 break;
2043 }
2044 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2045 ioc->name, response_code, desc);
2046}
2047EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
2048
2049/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2050/**
2051 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2052 * @ioc: Pointer to MPT_ADAPTER structure
2053 * @mf: Pointer to SCSI task mgmt request frame
2054 * @mr: Pointer to SCSI task mgmt reply frame
2055 *
2056 * This routine is called from mptbase.c::mpt_interrupt() at the completion
2057 * of any SCSI task management request.
2058 * This routine is registered with the MPT (base) driver at driver
2059 * load/init time via the mpt_register() API call.
2060 *
2061 * Returns 1 indicating alloc'd request frame ptr should be freed.
2062 **/
2063int
2064mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf,
2065 MPT_FRAME_HDR *mr)
2066{
2067 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2068 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr));
2069
2070 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2071
2072 if (!mr)
2073 goto out;
2074
2075 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2076 memcpy(ioc->taskmgmt_cmds.reply, mr,
2077 min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
2078 out:
2079 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
2080 mpt_clear_taskmgmt_in_progress_flag(ioc);
2081 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2082 complete(&ioc->taskmgmt_cmds.done);
2083 if (ioc->bus_type == SAS)
2084 ioc->schedule_target_reset(ioc);
2085 return 1;
2086 }
2087 return 0;
2088}
2089
2090/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2091/*
2092 * This is anyones guess quite frankly.
2093 */
2094int
2095mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2096 sector_t capacity, int geom[])
2097{
2098 int heads;
2099 int sectors;
2100 sector_t cylinders;
2101 ulong dummy;
2102
2103 heads = 64;
2104 sectors = 32;
2105
2106 dummy = heads * sectors;
2107 cylinders = capacity;
2108 sector_div(cylinders,dummy);
2109
2110 /*
2111 * Handle extended translation size for logical drives
2112 * > 1Gb
2113 */
2114 if ((ulong)capacity >= 0x200000) {
2115 heads = 255;
2116 sectors = 63;
2117 dummy = heads * sectors;
2118 cylinders = capacity;
2119 sector_div(cylinders,dummy);
2120 }
2121
2122 /* return result */
2123 geom[0] = heads;
2124 geom[1] = sectors;
2125 geom[2] = cylinders;
2126
2127 return 0;
2128}
2129
2130/* Search IOC page 3 to determine if this is hidden physical disk
2131 *
2132 */
2133int
2134mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2135{
2136 struct inactive_raid_component_info *component_info;
2137 int i, j;
2138 RaidPhysDiskPage1_t *phys_disk;
2139 int rc = 0;
2140 int num_paths;
2141
2142 if (!ioc->raid_data.pIocPg3)
2143 goto out;
2144 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2145 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2146 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2147 rc = 1;
2148 goto out;
2149 }
2150 }
2151
2152 if (ioc->bus_type != SAS)
2153 goto out;
2154
2155 /*
2156 * Check if dual path
2157 */
2158 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2159 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2160 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2161 if (num_paths < 2)
2162 continue;
2163 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2164 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2165 if (!phys_disk)
2166 continue;
2167 if ((mpt_raid_phys_disk_pg1(ioc,
2168 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2169 phys_disk))) {
2170 kfree(phys_disk);
2171 continue;
2172 }
2173 for (j = 0; j < num_paths; j++) {
2174 if ((phys_disk->Path[j].Flags &
2175 MPI_RAID_PHYSDISK1_FLAG_INVALID))
2176 continue;
2177 if ((phys_disk->Path[j].Flags &
2178 MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2179 continue;
2180 if ((id == phys_disk->Path[j].PhysDiskID) &&
2181 (channel == phys_disk->Path[j].PhysDiskBus)) {
2182 rc = 1;
2183 kfree(phys_disk);
2184 goto out;
2185 }
2186 }
2187 kfree(phys_disk);
2188 }
2189
2190
2191 /*
2192 * Check inactive list for matching phys disks
2193 */
2194 if (list_empty(&ioc->raid_data.inactive_list))
2195 goto out;
2196
2197 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2198 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2199 list) {
2200 if ((component_info->d.PhysDiskID == id) &&
2201 (component_info->d.PhysDiskBus == channel))
2202 rc = 1;
2203 }
2204 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2205
2206 out:
2207 return rc;
2208}
2209EXPORT_SYMBOL(mptscsih_is_phys_disk);
2210
2211u8
2212mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2213{
2214 struct inactive_raid_component_info *component_info;
2215 int i, j;
2216 RaidPhysDiskPage1_t *phys_disk;
2217 int rc = -ENXIO;
2218 int num_paths;
2219
2220 if (!ioc->raid_data.pIocPg3)
2221 goto out;
2222 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2223 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2224 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2225 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2226 goto out;
2227 }
2228 }
2229
2230 if (ioc->bus_type != SAS)
2231 goto out;
2232
2233 /*
2234 * Check if dual path
2235 */
2236 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2237 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2238 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2239 if (num_paths < 2)
2240 continue;
2241 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2242 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2243 if (!phys_disk)
2244 continue;
2245 if ((mpt_raid_phys_disk_pg1(ioc,
2246 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2247 phys_disk))) {
2248 kfree(phys_disk);
2249 continue;
2250 }
2251 for (j = 0; j < num_paths; j++) {
2252 if ((phys_disk->Path[j].Flags &
2253 MPI_RAID_PHYSDISK1_FLAG_INVALID))
2254 continue;
2255 if ((phys_disk->Path[j].Flags &
2256 MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2257 continue;
2258 if ((id == phys_disk->Path[j].PhysDiskID) &&
2259 (channel == phys_disk->Path[j].PhysDiskBus)) {
2260 rc = phys_disk->PhysDiskNum;
2261 kfree(phys_disk);
2262 goto out;
2263 }
2264 }
2265 kfree(phys_disk);
2266 }
2267
2268 /*
2269 * Check inactive list for matching phys disks
2270 */
2271 if (list_empty(&ioc->raid_data.inactive_list))
2272 goto out;
2273
2274 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2275 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2276 list) {
2277 if ((component_info->d.PhysDiskID == id) &&
2278 (component_info->d.PhysDiskBus == channel))
2279 rc = component_info->d.PhysDiskNum;
2280 }
2281 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2282
2283 out:
2284 return rc;
2285}
2286EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2287
2288/*
2289 * OS entry point to allow for host driver to free allocated memory
2290 * Called if no device present or device being unloaded
2291 */
2292void
2293mptscsih_slave_destroy(struct scsi_device *sdev)
2294{
2295 struct Scsi_Host *host = sdev->host;
2296 MPT_SCSI_HOST *hd = shost_priv(host);
2297 VirtTarget *vtarget;
2298 VirtDevice *vdevice;
2299 struct scsi_target *starget;
2300
2301 starget = scsi_target(sdev);
2302 vtarget = starget->hostdata;
2303 vdevice = sdev->hostdata;
2304 if (!vdevice)
2305 return;
2306
2307 mptscsih_search_running_cmds(hd, vdevice);
2308 vtarget->num_luns--;
2309 mptscsih_synchronize_cache(hd, vdevice);
2310 kfree(vdevice);
2311 sdev->hostdata = NULL;
2312}
2313
2314/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2315/*
2316 * mptscsih_change_queue_depth - This function will set a devices queue depth
2317 * @sdev: per scsi_device pointer
2318 * @qdepth: requested queue depth
2319 * @reason: calling context
2320 *
2321 * Adding support for new 'change_queue_depth' api.
2322*/
2323int
2324mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
2325{
2326 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
2327 VirtTarget *vtarget;
2328 struct scsi_target *starget;
2329 int max_depth;
2330 int tagged;
2331 MPT_ADAPTER *ioc = hd->ioc;
2332
2333 starget = scsi_target(sdev);
2334 vtarget = starget->hostdata;
2335
2336 if (reason != SCSI_QDEPTH_DEFAULT)
2337 return -EOPNOTSUPP;
2338
2339 if (ioc->bus_type == SPI) {
2340 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2341 max_depth = 1;
2342 else if (sdev->type == TYPE_DISK &&
2343 vtarget->minSyncFactor <= MPT_ULTRA160)
2344 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2345 else
2346 max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2347 } else
2348 max_depth = ioc->sh->can_queue;
2349
2350 if (!sdev->tagged_supported)
2351 max_depth = 1;
2352
2353 if (qdepth > max_depth)
2354 qdepth = max_depth;
2355 if (qdepth == 1)
2356 tagged = 0;
2357 else
2358 tagged = MSG_SIMPLE_TAG;
2359
2360 scsi_adjust_queue_depth(sdev, tagged, qdepth);
2361 return sdev->queue_depth;
2362}
2363
2364/*
2365 * OS entry point to adjust the queue_depths on a per-device basis.
2366 * Called once per device the bus scan. Use it to force the queue_depth
2367 * member to 1 if a device does not support Q tags.
2368 * Return non-zero if fails.
2369 */
2370int
2371mptscsih_slave_configure(struct scsi_device *sdev)
2372{
2373 struct Scsi_Host *sh = sdev->host;
2374 VirtTarget *vtarget;
2375 VirtDevice *vdevice;
2376 struct scsi_target *starget;
2377 MPT_SCSI_HOST *hd = shost_priv(sh);
2378 MPT_ADAPTER *ioc = hd->ioc;
2379
2380 starget = scsi_target(sdev);
2381 vtarget = starget->hostdata;
2382 vdevice = sdev->hostdata;
2383
2384 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2385 "device @ %p, channel=%d, id=%d, lun=%d\n",
2386 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2387 if (ioc->bus_type == SPI)
2388 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2389 "sdtr %d wdtr %d ppr %d inq length=%d\n",
2390 ioc->name, sdev->sdtr, sdev->wdtr,
2391 sdev->ppr, sdev->inquiry_len));
2392
2393 vdevice->configured_lun = 1;
2394
2395 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2396 "Queue depth=%d, tflags=%x\n",
2397 ioc->name, sdev->queue_depth, vtarget->tflags));
2398
2399 if (ioc->bus_type == SPI)
2400 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2401 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2402 ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2403 vtarget->minSyncFactor));
2404
2405 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH,
2406 SCSI_QDEPTH_DEFAULT);
2407 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2408 "tagged %d, simple %d, ordered %d\n",
2409 ioc->name,sdev->tagged_supported, sdev->simple_tags,
2410 sdev->ordered_tags));
2411
2412 blk_queue_dma_alignment (sdev->request_queue, 512 - 1);
2413
2414 return 0;
2415}
2416
2417/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2418/*
2419 * Private routines...
2420 */
2421
2422/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2423/* Utility function to copy sense data from the scsi_cmnd buffer
2424 * to the FC and SCSI target structures.
2425 *
2426 */
2427static void
2428mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2429{
2430 VirtDevice *vdevice;
2431 SCSIIORequest_t *pReq;
2432 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount);
2433 MPT_ADAPTER *ioc = hd->ioc;
2434
2435 /* Get target structure
2436 */
2437 pReq = (SCSIIORequest_t *) mf;
2438 vdevice = sc->device->hostdata;
2439
2440 if (sense_count) {
2441 u8 *sense_data;
2442 int req_index;
2443
2444 /* Copy the sense received into the scsi command block. */
2445 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2446 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2447 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2448
2449 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2450 */
2451 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2452 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2453 int idx;
2454
2455 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2456 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2457 ioc->events[idx].eventContext = ioc->eventContext;
2458
2459 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2460 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2461 (sc->device->channel << 8) | sc->device->id;
2462
2463 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2464
2465 ioc->eventContext++;
2466 if (ioc->pcidev->vendor ==
2467 PCI_VENDOR_ID_IBM) {
2468 mptscsih_issue_sep_command(ioc,
2469 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2470 vdevice->vtarget->tflags |=
2471 MPT_TARGET_FLAGS_LED_ON;
2472 }
2473 }
2474 }
2475 } else {
2476 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2477 ioc->name));
2478 }
2479}
2480
2481/**
2482 * mptscsih_get_scsi_lookup - retrieves scmd entry
2483 * @ioc: Pointer to MPT_ADAPTER structure
2484 * @i: index into the array
2485 *
2486 * Returns the scsi_cmd pointer
2487 */
2488struct scsi_cmnd *
2489mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2490{
2491 unsigned long flags;
2492 struct scsi_cmnd *scmd;
2493
2494 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2495 scmd = ioc->ScsiLookup[i];
2496 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2497
2498 return scmd;
2499}
2500EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
2501
2502/**
2503 * mptscsih_getclear_scsi_lookup - retrieves and clears scmd entry from ScsiLookup[] array list
2504 * @ioc: Pointer to MPT_ADAPTER structure
2505 * @i: index into the array
2506 *
2507 * Returns the scsi_cmd pointer
2508 *
2509 **/
2510static struct scsi_cmnd *
2511mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2512{
2513 unsigned long flags;
2514 struct scsi_cmnd *scmd;
2515
2516 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2517 scmd = ioc->ScsiLookup[i];
2518 ioc->ScsiLookup[i] = NULL;
2519 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2520
2521 return scmd;
2522}
2523
2524/**
2525 * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list
2526 *
2527 * @ioc: Pointer to MPT_ADAPTER structure
2528 * @i: index into the array
2529 * @scmd: scsi_cmnd pointer
2530 *
2531 **/
2532static void
2533mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2534{
2535 unsigned long flags;
2536
2537 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2538 ioc->ScsiLookup[i] = scmd;
2539 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2540}
2541
2542/**
2543 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2544 * @ioc: Pointer to MPT_ADAPTER structure
2545 * @sc: scsi_cmnd pointer
2546 */
2547static int
2548SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2549{
2550 unsigned long flags;
2551 int i, index=-1;
2552
2553 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2554 for (i = 0; i < ioc->req_depth; i++) {
2555 if (ioc->ScsiLookup[i] == sc) {
2556 index = i;
2557 goto out;
2558 }
2559 }
2560
2561 out:
2562 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2563 return index;
2564}
2565
2566/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2567int
2568mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2569{
2570 MPT_SCSI_HOST *hd;
2571
2572 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2573 return 0;
2574
2575 hd = shost_priv(ioc->sh);
2576 switch (reset_phase) {
2577 case MPT_IOC_SETUP_RESET:
2578 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2579 "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
2580 break;
2581 case MPT_IOC_PRE_RESET:
2582 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2583 "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
2584 mptscsih_flush_running_cmds(hd);
2585 break;
2586 case MPT_IOC_POST_RESET:
2587 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2588 "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
2589 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) {
2590 ioc->internal_cmds.status |=
2591 MPT_MGMT_STATUS_DID_IOCRESET;
2592 complete(&ioc->internal_cmds.done);
2593 }
2594 break;
2595 default:
2596 break;
2597 }
2598 return 1; /* currently means nothing really */
2599}
2600
2601/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2602int
2603mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2604{
2605 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2606
2607 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2608 "MPT event (=%02Xh) routed to SCSI host driver!\n",
2609 ioc->name, event));
2610
2611 if ((event == MPI_EVENT_IOC_BUS_RESET ||
2612 event == MPI_EVENT_EXT_BUS_RESET) &&
2613 (ioc->bus_type == SPI) && (ioc->soft_resets < -1))
2614 ioc->soft_resets++;
2615
2616 return 1; /* currently means nothing really */
2617}
2618
2619/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2620/*
2621 * Bus Scan and Domain Validation functionality ...
2622 */
2623
2624/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2625/*
2626 * mptscsih_scandv_complete - Scan and DV callback routine registered
2627 * to Fustion MPT (base) driver.
2628 *
2629 * @ioc: Pointer to MPT_ADAPTER structure
2630 * @mf: Pointer to original MPT request frame
2631 * @mr: Pointer to MPT reply frame (NULL if TurboReply)
2632 *
2633 * This routine is called from mpt.c::mpt_interrupt() at the completion
2634 * of any SCSI IO request.
2635 * This routine is registered with the Fusion MPT (base) driver at driver
2636 * load/init time via the mpt_register() API call.
2637 *
2638 * Returns 1 indicating alloc'd request frame ptr should be freed.
2639 *
2640 * Remark: Sets a completion code and (possibly) saves sense data
2641 * in the IOC member localReply structure.
2642 * Used ONLY for DV and other internal commands.
2643 */
2644int
2645mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2646 MPT_FRAME_HDR *reply)
2647{
2648 SCSIIORequest_t *pReq;
2649 SCSIIOReply_t *pReply;
2650 u8 cmd;
2651 u16 req_idx;
2652 u8 *sense_data;
2653 int sz;
2654
2655 ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2656 ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD;
2657 if (!reply)
2658 goto out;
2659
2660 pReply = (SCSIIOReply_t *) reply;
2661 pReq = (SCSIIORequest_t *) req;
2662 ioc->internal_cmds.completion_code =
2663 mptscsih_get_completion_code(ioc, req, reply);
2664 ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2665 memcpy(ioc->internal_cmds.reply, reply,
2666 min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength));
2667 cmd = reply->u.hdr.Function;
2668 if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
2669 (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) &&
2670 (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
2671 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
2672 sense_data = ((u8 *)ioc->sense_buf_pool +
2673 (req_idx * MPT_SENSE_BUFFER_ALLOC));
2674 sz = min_t(int, pReq->SenseBufferLength,
2675 MPT_SENSE_BUFFER_ALLOC);
2676 memcpy(ioc->internal_cmds.sense, sense_data, sz);
2677 }
2678 out:
2679 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING))
2680 return 0;
2681 ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2682 complete(&ioc->internal_cmds.done);
2683 return 1;
2684}
2685
2686
2687/**
2688 * mptscsih_get_completion_code - get completion code from MPT request
2689 * @ioc: Pointer to MPT_ADAPTER structure
2690 * @req: Pointer to original MPT request frame
2691 * @reply: Pointer to MPT reply frame (NULL if TurboReply)
2692 *
2693 **/
2694static int
2695mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2696 MPT_FRAME_HDR *reply)
2697{
2698 SCSIIOReply_t *pReply;
2699 MpiRaidActionReply_t *pr;
2700 u8 scsi_status;
2701 u16 status;
2702 int completion_code;
2703
2704 pReply = (SCSIIOReply_t *)reply;
2705 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2706 scsi_status = pReply->SCSIStatus;
2707
2708 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2709 "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh,"
2710 "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState,
2711 scsi_status, le32_to_cpu(pReply->IOCLogInfo)));
2712
2713 switch (status) {
2714
2715 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
2716 completion_code = MPT_SCANDV_SELECTION_TIMEOUT;
2717 break;
2718
2719 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
2720 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
2721 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
2722 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
2723 completion_code = MPT_SCANDV_DID_RESET;
2724 break;
2725
2726 case MPI_IOCSTATUS_BUSY:
2727 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
2728 completion_code = MPT_SCANDV_BUSY;
2729 break;
2730
2731 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
2732 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
2733 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
2734 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2735 completion_code = MPT_SCANDV_GOOD;
2736 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2737 pr = (MpiRaidActionReply_t *)reply;
2738 if (le16_to_cpu(pr->ActionStatus) ==
2739 MPI_RAID_ACTION_ASTATUS_SUCCESS)
2740 completion_code = MPT_SCANDV_GOOD;
2741 else
2742 completion_code = MPT_SCANDV_SOME_ERROR;
2743 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)
2744 completion_code = MPT_SCANDV_SENSE;
2745 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2746 if (req->u.scsireq.CDB[0] == INQUIRY)
2747 completion_code = MPT_SCANDV_ISSUE_SENSE;
2748 else
2749 completion_code = MPT_SCANDV_DID_RESET;
2750 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2751 completion_code = MPT_SCANDV_DID_RESET;
2752 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2753 completion_code = MPT_SCANDV_DID_RESET;
2754 else if (scsi_status == MPI_SCSI_STATUS_BUSY)
2755 completion_code = MPT_SCANDV_BUSY;
2756 else
2757 completion_code = MPT_SCANDV_GOOD;
2758 break;
2759
2760 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
2761 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2762 completion_code = MPT_SCANDV_DID_RESET;
2763 else
2764 completion_code = MPT_SCANDV_SOME_ERROR;
2765 break;
2766 default:
2767 completion_code = MPT_SCANDV_SOME_ERROR;
2768 break;
2769
2770 } /* switch(status) */
2771
2772 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2773 " completionCode set to %08xh\n", ioc->name, completion_code));
2774 return completion_code;
2775}
2776
2777/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2778/**
2779 * mptscsih_do_cmd - Do internal command.
2780 * @hd: MPT_SCSI_HOST pointer
2781 * @io: INTERNAL_CMD pointer.
2782 *
2783 * Issue the specified internally generated command and do command
2784 * specific cleanup. For bus scan / DV only.
2785 * NOTES: If command is Inquiry and status is good,
2786 * initialize a target structure, save the data
2787 *
2788 * Remark: Single threaded access only.
2789 *
2790 * Return:
2791 * < 0 if an illegal command or no resources
2792 *
2793 * 0 if good
2794 *
2795 * > 0 if command complete but some type of completion error.
2796 */
2797static int
2798mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2799{
2800 MPT_FRAME_HDR *mf;
2801 SCSIIORequest_t *pScsiReq;
2802 int my_idx, ii, dir;
2803 int timeout;
2804 char cmdLen;
2805 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2806 u8 cmd = io->cmd;
2807 MPT_ADAPTER *ioc = hd->ioc;
2808 int ret = 0;
2809 unsigned long timeleft;
2810 unsigned long flags;
2811
2812 /* don't send internal command during diag reset */
2813 spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
2814 if (ioc->ioc_reset_in_progress) {
2815 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2816 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2817 "%s: busy with host reset\n", ioc->name, __func__));
2818 return MPT_SCANDV_BUSY;
2819 }
2820 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2821
2822 mutex_lock(&ioc->internal_cmds.mutex);
2823
2824 /* Set command specific information
2825 */
2826 switch (cmd) {
2827 case INQUIRY:
2828 cmdLen = 6;
2829 dir = MPI_SCSIIO_CONTROL_READ;
2830 CDB[0] = cmd;
2831 CDB[4] = io->size;
2832 timeout = 10;
2833 break;
2834
2835 case TEST_UNIT_READY:
2836 cmdLen = 6;
2837 dir = MPI_SCSIIO_CONTROL_READ;
2838 timeout = 10;
2839 break;
2840
2841 case START_STOP:
2842 cmdLen = 6;
2843 dir = MPI_SCSIIO_CONTROL_READ;
2844 CDB[0] = cmd;
2845 CDB[4] = 1; /*Spin up the disk */
2846 timeout = 15;
2847 break;
2848
2849 case REQUEST_SENSE:
2850 cmdLen = 6;
2851 CDB[0] = cmd;
2852 CDB[4] = io->size;
2853 dir = MPI_SCSIIO_CONTROL_READ;
2854 timeout = 10;
2855 break;
2856
2857 case READ_BUFFER:
2858 cmdLen = 10;
2859 dir = MPI_SCSIIO_CONTROL_READ;
2860 CDB[0] = cmd;
2861 if (io->flags & MPT_ICFLAG_ECHO) {
2862 CDB[1] = 0x0A;
2863 } else {
2864 CDB[1] = 0x02;
2865 }
2866
2867 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2868 CDB[1] |= 0x01;
2869 }
2870 CDB[6] = (io->size >> 16) & 0xFF;
2871 CDB[7] = (io->size >> 8) & 0xFF;
2872 CDB[8] = io->size & 0xFF;
2873 timeout = 10;
2874 break;
2875
2876 case WRITE_BUFFER:
2877 cmdLen = 10;
2878 dir = MPI_SCSIIO_CONTROL_WRITE;
2879 CDB[0] = cmd;
2880 if (io->flags & MPT_ICFLAG_ECHO) {
2881 CDB[1] = 0x0A;
2882 } else {
2883 CDB[1] = 0x02;
2884 }
2885 CDB[6] = (io->size >> 16) & 0xFF;
2886 CDB[7] = (io->size >> 8) & 0xFF;
2887 CDB[8] = io->size & 0xFF;
2888 timeout = 10;
2889 break;
2890
2891 case RESERVE:
2892 cmdLen = 6;
2893 dir = MPI_SCSIIO_CONTROL_READ;
2894 CDB[0] = cmd;
2895 timeout = 10;
2896 break;
2897
2898 case RELEASE:
2899 cmdLen = 6;
2900 dir = MPI_SCSIIO_CONTROL_READ;
2901 CDB[0] = cmd;
2902 timeout = 10;
2903 break;
2904
2905 case SYNCHRONIZE_CACHE:
2906 cmdLen = 10;
2907 dir = MPI_SCSIIO_CONTROL_READ;
2908 CDB[0] = cmd;
2909// CDB[1] = 0x02; /* set immediate bit */
2910 timeout = 10;
2911 break;
2912
2913 default:
2914 /* Error Case */
2915 ret = -EFAULT;
2916 goto out;
2917 }
2918
2919 /* Get and Populate a free Frame
2920 * MsgContext set in mpt_get_msg_frame call
2921 */
2922 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
2923 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n",
2924 ioc->name, __func__));
2925 ret = MPT_SCANDV_BUSY;
2926 goto out;
2927 }
2928
2929 pScsiReq = (SCSIIORequest_t *) mf;
2930
2931 /* Get the request index */
2932 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2933 ADD_INDEX_LOG(my_idx); /* for debug */
2934
2935 if (io->flags & MPT_ICFLAG_PHYS_DISK) {
2936 pScsiReq->TargetID = io->physDiskNum;
2937 pScsiReq->Bus = 0;
2938 pScsiReq->ChainOffset = 0;
2939 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2940 } else {
2941 pScsiReq->TargetID = io->id;
2942 pScsiReq->Bus = io->channel;
2943 pScsiReq->ChainOffset = 0;
2944 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2945 }
2946
2947 pScsiReq->CDBLength = cmdLen;
2948 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
2949
2950 pScsiReq->Reserved = 0;
2951
2952 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
2953 /* MsgContext set in mpt_get_msg_fram call */
2954
2955 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
2956
2957 if (io->flags & MPT_ICFLAG_TAGGED_CMD)
2958 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
2959 else
2960 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2961
2962 if (cmd == REQUEST_SENSE) {
2963 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2964 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2965 "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd));
2966 }
2967
2968 for (ii = 0; ii < 16; ii++)
2969 pScsiReq->CDB[ii] = CDB[ii];
2970
2971 pScsiReq->DataLength = cpu_to_le32(io->size);
2972 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
2973 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
2974
2975 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2976 "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%d\n",
2977 ioc->name, __func__, cmd, io->channel, io->id, io->lun));
2978
2979 if (dir == MPI_SCSIIO_CONTROL_READ)
2980 ioc->add_sge((char *) &pScsiReq->SGL,
2981 MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma);
2982 else
2983 ioc->add_sge((char *) &pScsiReq->SGL,
2984 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma);
2985
2986 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
2987 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
2988 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done,
2989 timeout*HZ);
2990 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2991 ret = MPT_SCANDV_DID_RESET;
2992 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2993 "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__,
2994 cmd));
2995 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2996 mpt_free_msg_frame(ioc, mf);
2997 goto out;
2998 }
2999 if (!timeleft) {
3000 printk(MYIOC_s_WARN_FMT
3001 "Issuing Reset from %s!! doorbell=0x%08xh"
3002 " cmd=0x%02x\n",
3003 ioc->name, __func__, mpt_GetIocState(ioc, 0),
3004 cmd);
3005 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
3006 mpt_free_msg_frame(ioc, mf);
3007 }
3008 goto out;
3009 }
3010
3011 ret = ioc->internal_cmds.completion_code;
3012 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n",
3013 ioc->name, __func__, ret));
3014
3015 out:
3016 CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
3017 mutex_unlock(&ioc->internal_cmds.mutex);
3018 return ret;
3019}
3020
3021/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3022/**
3023 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3024 * @hd: Pointer to a SCSI HOST structure
3025 * @vdevice: virtual target device
3026 *
3027 * Uses the ISR, but with special processing.
3028 * MUST be single-threaded.
3029 *
3030 */
3031static void
3032mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3033{
3034 INTERNAL_CMD iocmd;
3035
3036 /* Ignore hidden raid components, this is handled when the command
3037 * is sent to the volume
3038 */
3039 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3040 return;
3041
3042 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3043 !vdevice->configured_lun)
3044 return;
3045
3046 /* Following parameters will not change
3047 * in this routine.
3048 */
3049 iocmd.cmd = SYNCHRONIZE_CACHE;
3050 iocmd.flags = 0;
3051 iocmd.physDiskNum = -1;
3052 iocmd.data = NULL;
3053 iocmd.data_dma = -1;
3054 iocmd.size = 0;
3055 iocmd.rsvd = iocmd.rsvd2 = 0;
3056 iocmd.channel = vdevice->vtarget->channel;
3057 iocmd.id = vdevice->vtarget->id;
3058 iocmd.lun = vdevice->lun;
3059
3060 mptscsih_do_cmd(hd, &iocmd);
3061}
3062
3063static ssize_t
3064mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3065 char *buf)
3066{
3067 struct Scsi_Host *host = class_to_shost(dev);
3068 MPT_SCSI_HOST *hd = shost_priv(host);
3069 MPT_ADAPTER *ioc = hd->ioc;
3070
3071 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3072 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3073 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3074 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3075 ioc->facts.FWVersion.Word & 0x000000FF);
3076}
3077static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3078
3079static ssize_t
3080mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3081 char *buf)
3082{
3083 struct Scsi_Host *host = class_to_shost(dev);
3084 MPT_SCSI_HOST *hd = shost_priv(host);
3085 MPT_ADAPTER *ioc = hd->ioc;
3086
3087 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3088 (ioc->biosVersion & 0xFF000000) >> 24,
3089 (ioc->biosVersion & 0x00FF0000) >> 16,
3090 (ioc->biosVersion & 0x0000FF00) >> 8,
3091 ioc->biosVersion & 0x000000FF);
3092}
3093static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3094
3095static ssize_t
3096mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3097 char *buf)
3098{
3099 struct Scsi_Host *host = class_to_shost(dev);
3100 MPT_SCSI_HOST *hd = shost_priv(host);
3101 MPT_ADAPTER *ioc = hd->ioc;
3102
3103 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3104}
3105static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3106
3107static ssize_t
3108mptscsih_version_product_show(struct device *dev,
3109 struct device_attribute *attr,
3110char *buf)
3111{
3112 struct Scsi_Host *host = class_to_shost(dev);
3113 MPT_SCSI_HOST *hd = shost_priv(host);
3114 MPT_ADAPTER *ioc = hd->ioc;
3115
3116 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3117}
3118static DEVICE_ATTR(version_product, S_IRUGO,
3119 mptscsih_version_product_show, NULL);
3120
3121static ssize_t
3122mptscsih_version_nvdata_persistent_show(struct device *dev,
3123 struct device_attribute *attr,
3124 char *buf)
3125{
3126 struct Scsi_Host *host = class_to_shost(dev);
3127 MPT_SCSI_HOST *hd = shost_priv(host);
3128 MPT_ADAPTER *ioc = hd->ioc;
3129
3130 return snprintf(buf, PAGE_SIZE, "%02xh\n",
3131 ioc->nvdata_version_persistent);
3132}
3133static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3134 mptscsih_version_nvdata_persistent_show, NULL);
3135
3136static ssize_t
3137mptscsih_version_nvdata_default_show(struct device *dev,
3138 struct device_attribute *attr, char *buf)
3139{
3140 struct Scsi_Host *host = class_to_shost(dev);
3141 MPT_SCSI_HOST *hd = shost_priv(host);
3142 MPT_ADAPTER *ioc = hd->ioc;
3143
3144 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3145}
3146static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3147 mptscsih_version_nvdata_default_show, NULL);
3148
3149static ssize_t
3150mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3151 char *buf)
3152{
3153 struct Scsi_Host *host = class_to_shost(dev);
3154 MPT_SCSI_HOST *hd = shost_priv(host);
3155 MPT_ADAPTER *ioc = hd->ioc;
3156
3157 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3158}
3159static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3160
3161static ssize_t
3162mptscsih_board_assembly_show(struct device *dev,
3163 struct device_attribute *attr, char *buf)
3164{
3165 struct Scsi_Host *host = class_to_shost(dev);
3166 MPT_SCSI_HOST *hd = shost_priv(host);
3167 MPT_ADAPTER *ioc = hd->ioc;
3168
3169 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3170}
3171static DEVICE_ATTR(board_assembly, S_IRUGO,
3172 mptscsih_board_assembly_show, NULL);
3173
3174static ssize_t
3175mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3176 char *buf)
3177{
3178 struct Scsi_Host *host = class_to_shost(dev);
3179 MPT_SCSI_HOST *hd = shost_priv(host);
3180 MPT_ADAPTER *ioc = hd->ioc;
3181
3182 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3183}
3184static DEVICE_ATTR(board_tracer, S_IRUGO,
3185 mptscsih_board_tracer_show, NULL);
3186
3187static ssize_t
3188mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3189 char *buf)
3190{
3191 struct Scsi_Host *host = class_to_shost(dev);
3192 MPT_SCSI_HOST *hd = shost_priv(host);
3193 MPT_ADAPTER *ioc = hd->ioc;
3194
3195 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3196}
3197static DEVICE_ATTR(io_delay, S_IRUGO,
3198 mptscsih_io_delay_show, NULL);
3199
3200static ssize_t
3201mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3202 char *buf)
3203{
3204 struct Scsi_Host *host = class_to_shost(dev);
3205 MPT_SCSI_HOST *hd = shost_priv(host);
3206 MPT_ADAPTER *ioc = hd->ioc;
3207
3208 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3209}
3210static DEVICE_ATTR(device_delay, S_IRUGO,
3211 mptscsih_device_delay_show, NULL);
3212
3213static ssize_t
3214mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3215 char *buf)
3216{
3217 struct Scsi_Host *host = class_to_shost(dev);
3218 MPT_SCSI_HOST *hd = shost_priv(host);
3219 MPT_ADAPTER *ioc = hd->ioc;
3220
3221 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3222}
3223static ssize_t
3224mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3225 const char *buf, size_t count)
3226{
3227 struct Scsi_Host *host = class_to_shost(dev);
3228 MPT_SCSI_HOST *hd = shost_priv(host);
3229 MPT_ADAPTER *ioc = hd->ioc;
3230 int val = 0;
3231
3232 if (sscanf(buf, "%x", &val) != 1)
3233 return -EINVAL;
3234
3235 ioc->debug_level = val;
3236 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3237 ioc->name, ioc->debug_level);
3238 return strlen(buf);
3239}
3240static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3241 mptscsih_debug_level_show, mptscsih_debug_level_store);
3242
3243struct device_attribute *mptscsih_host_attrs[] = {
3244 &dev_attr_version_fw,
3245 &dev_attr_version_bios,
3246 &dev_attr_version_mpi,
3247 &dev_attr_version_product,
3248 &dev_attr_version_nvdata_persistent,
3249 &dev_attr_version_nvdata_default,
3250 &dev_attr_board_name,
3251 &dev_attr_board_assembly,
3252 &dev_attr_board_tracer,
3253 &dev_attr_io_delay,
3254 &dev_attr_device_delay,
3255 &dev_attr_debug_level,
3256 NULL,
3257};
3258
3259EXPORT_SYMBOL(mptscsih_host_attrs);
3260
3261EXPORT_SYMBOL(mptscsih_remove);
3262EXPORT_SYMBOL(mptscsih_shutdown);
3263#ifdef CONFIG_PM
3264EXPORT_SYMBOL(mptscsih_suspend);
3265EXPORT_SYMBOL(mptscsih_resume);
3266#endif
3267EXPORT_SYMBOL(mptscsih_show_info);
3268EXPORT_SYMBOL(mptscsih_info);
3269EXPORT_SYMBOL(mptscsih_qcmd);
3270EXPORT_SYMBOL(mptscsih_slave_destroy);
3271EXPORT_SYMBOL(mptscsih_slave_configure);
3272EXPORT_SYMBOL(mptscsih_abort);
3273EXPORT_SYMBOL(mptscsih_dev_reset);
3274EXPORT_SYMBOL(mptscsih_bus_reset);
3275EXPORT_SYMBOL(mptscsih_host_reset);
3276EXPORT_SYMBOL(mptscsih_bios_param);
3277EXPORT_SYMBOL(mptscsih_io_done);
3278EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3279EXPORT_SYMBOL(mptscsih_scandv_complete);
3280EXPORT_SYMBOL(mptscsih_event_process);
3281EXPORT_SYMBOL(mptscsih_ioc_reset);
3282EXPORT_SYMBOL(mptscsih_change_queue_depth);
3283
3284/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1/*
2 * linux/drivers/message/fusion/mptscsih.c
3 * For use with LSI PCI chip/adapter(s)
4 * running LSI Fusion MPT (Message Passing Technology) firmware.
5 *
6 * Copyright (c) 1999-2008 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
8 *
9 */
10/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
11/*
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; version 2 of the License.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 NO WARRANTY
22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
26 solely responsible for determining the appropriateness of using and
27 distributing the Program and assumes all risks associated with its
28 exercise of rights under this Agreement, including but not limited to
29 the risks and costs of program errors, damage to or loss of data,
30 programs or equipment, and unavailability or interruption of operations.
31
32 DISCLAIMER OF LIABILITY
33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40
41 You should have received a copy of the GNU General Public License
42 along with this program; if not, write to the Free Software
43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
44*/
45/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
46
47#include <linux/module.h>
48#include <linux/kernel.h>
49#include <linux/slab.h>
50#include <linux/init.h>
51#include <linux/errno.h>
52#include <linux/kdev_t.h>
53#include <linux/blkdev.h>
54#include <linux/delay.h> /* for mdelay */
55#include <linux/interrupt.h>
56#include <linux/reboot.h> /* notifier code */
57#include <linux/workqueue.h>
58
59#include <scsi/scsi.h>
60#include <scsi/scsi_cmnd.h>
61#include <scsi/scsi_device.h>
62#include <scsi/scsi_host.h>
63#include <scsi/scsi_tcq.h>
64#include <scsi/scsi_dbg.h>
65
66#include "mptbase.h"
67#include "mptscsih.h"
68#include "lsi/mpi_log_sas.h"
69
70/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
71#define my_NAME "Fusion MPT SCSI Host driver"
72#define my_VERSION MPT_LINUX_VERSION_COMMON
73#define MYNAM "mptscsih"
74
75MODULE_AUTHOR(MODULEAUTHOR);
76MODULE_DESCRIPTION(my_NAME);
77MODULE_LICENSE("GPL");
78MODULE_VERSION(my_VERSION);
79
80/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
81/*
82 * Other private/forward protos...
83 */
84struct scsi_cmnd *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
85static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i);
86static void mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd);
87static int SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd);
88int mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
89static void mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
90int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
91
92static int mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
93 SCSIIORequest_t *pReq, int req_idx);
94static void mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
95static void mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
96
97int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id,
98 u64 lun, int ctx2abort, ulong timeout);
99
100int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
101int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
102
103void
104mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code);
105static int mptscsih_get_completion_code(MPT_ADAPTER *ioc,
106 MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply);
107int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
108static int mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
109static void mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
110
111static int
112mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
113 SCSITaskMgmtReply_t *pScsiTmReply);
114void mptscsih_remove(struct pci_dev *);
115void mptscsih_shutdown(struct pci_dev *);
116#ifdef CONFIG_PM
117int mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
118int mptscsih_resume(struct pci_dev *pdev);
119#endif
120
121
122/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
123/*
124 * mptscsih_getFreeChainBuffer - Function to get a free chain
125 * from the MPT_SCSI_HOST FreeChainQ.
126 * @ioc: Pointer to MPT_ADAPTER structure
127 * @req_idx: Index of the SCSI IO request frame. (output)
128 *
129 * return SUCCESS or FAILED
130 */
131static inline int
132mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
133{
134 MPT_FRAME_HDR *chainBuf;
135 unsigned long flags;
136 int rc;
137 int chain_idx;
138
139 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n",
140 ioc->name));
141 spin_lock_irqsave(&ioc->FreeQlock, flags);
142 if (!list_empty(&ioc->FreeChainQ)) {
143 int offset;
144
145 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR,
146 u.frame.linkage.list);
147 list_del(&chainBuf->u.frame.linkage.list);
148 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer;
149 chain_idx = offset / ioc->req_sz;
150 rc = SUCCESS;
151 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
152 "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n",
153 ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx));
154 } else {
155 rc = FAILED;
156 chain_idx = MPT_HOST_NO_CHAIN;
157 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n",
158 ioc->name));
159 }
160 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
161
162 *retIndex = chain_idx;
163 return rc;
164} /* mptscsih_getFreeChainBuffer() */
165
166/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
167/*
168 * mptscsih_AddSGE - Add a SGE (plus chain buffers) to the
169 * SCSIIORequest_t Message Frame.
170 * @ioc: Pointer to MPT_ADAPTER structure
171 * @SCpnt: Pointer to scsi_cmnd structure
172 * @pReq: Pointer to SCSIIORequest_t structure
173 *
174 * Returns ...
175 */
176static int
177mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
178 SCSIIORequest_t *pReq, int req_idx)
179{
180 char *psge;
181 char *chainSge;
182 struct scatterlist *sg;
183 int frm_sz;
184 int sges_left, sg_done;
185 int chain_idx = MPT_HOST_NO_CHAIN;
186 int sgeOffset;
187 int numSgeSlots, numSgeThisFrame;
188 u32 sgflags, sgdir, thisxfer = 0;
189 int chain_dma_off = 0;
190 int newIndex;
191 int ii;
192 dma_addr_t v2;
193 u32 RequestNB;
194
195 sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
196 if (sgdir == MPI_SCSIIO_CONTROL_WRITE) {
197 sgdir = MPT_TRANSFER_HOST_TO_IOC;
198 } else {
199 sgdir = MPT_TRANSFER_IOC_TO_HOST;
200 }
201
202 psge = (char *) &pReq->SGL;
203 frm_sz = ioc->req_sz;
204
205 /* Map the data portion, if any.
206 * sges_left = 0 if no data transfer.
207 */
208 sges_left = scsi_dma_map(SCpnt);
209 if (sges_left < 0)
210 return FAILED;
211
212 /* Handle the SG case.
213 */
214 sg = scsi_sglist(SCpnt);
215 sg_done = 0;
216 sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION);
217 chainSge = NULL;
218
219 /* Prior to entering this loop - the following must be set
220 * current MF: sgeOffset (bytes)
221 * chainSge (Null if original MF is not a chain buffer)
222 * sg_done (num SGE done for this MF)
223 */
224
225nextSGEset:
226 numSgeSlots = ((frm_sz - sgeOffset) / ioc->SGE_size);
227 numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
228
229 sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | sgdir;
230
231 /* Get first (num - 1) SG elements
232 * Skip any SG entries with a length of 0
233 * NOTE: at finish, sg and psge pointed to NEXT data/location positions
234 */
235 for (ii=0; ii < (numSgeThisFrame-1); ii++) {
236 thisxfer = sg_dma_len(sg);
237 if (thisxfer == 0) {
238 /* Get next SG element from the OS */
239 sg = sg_next(sg);
240 sg_done++;
241 continue;
242 }
243
244 v2 = sg_dma_address(sg);
245 ioc->add_sge(psge, sgflags | thisxfer, v2);
246
247 /* Get next SG element from the OS */
248 sg = sg_next(sg);
249 psge += ioc->SGE_size;
250 sgeOffset += ioc->SGE_size;
251 sg_done++;
252 }
253
254 if (numSgeThisFrame == sges_left) {
255 /* Add last element, end of buffer and end of list flags.
256 */
257 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT |
258 MPT_SGE_FLAGS_END_OF_BUFFER |
259 MPT_SGE_FLAGS_END_OF_LIST;
260
261 /* Add last SGE and set termination flags.
262 * Note: Last SGE may have a length of 0 - which should be ok.
263 */
264 thisxfer = sg_dma_len(sg);
265
266 v2 = sg_dma_address(sg);
267 ioc->add_sge(psge, sgflags | thisxfer, v2);
268 sgeOffset += ioc->SGE_size;
269 sg_done++;
270
271 if (chainSge) {
272 /* The current buffer is a chain buffer,
273 * but there is not another one.
274 * Update the chain element
275 * Offset and Length fields.
276 */
277 ioc->add_chain((char *)chainSge, 0, sgeOffset,
278 ioc->ChainBufferDMA + chain_dma_off);
279 } else {
280 /* The current buffer is the original MF
281 * and there is no Chain buffer.
282 */
283 pReq->ChainOffset = 0;
284 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03;
285 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
286 "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
287 ioc->RequestNB[req_idx] = RequestNB;
288 }
289 } else {
290 /* At least one chain buffer is needed.
291 * Complete the first MF
292 * - last SGE element, set the LastElement bit
293 * - set ChainOffset (words) for orig MF
294 * (OR finish previous MF chain buffer)
295 * - update MFStructPtr ChainIndex
296 * - Populate chain element
297 * Also
298 * Loop until done.
299 */
300
301 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n",
302 ioc->name, sg_done));
303
304 /* Set LAST_ELEMENT flag for last non-chain element
305 * in the buffer. Since psge points at the NEXT
306 * SGE element, go back one SGE element, update the flags
307 * and reset the pointer. (Note: sgflags & thisxfer are already
308 * set properly).
309 */
310 if (sg_done) {
311 u32 *ptmp = (u32 *) (psge - ioc->SGE_size);
312 sgflags = le32_to_cpu(*ptmp);
313 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT;
314 *ptmp = cpu_to_le32(sgflags);
315 }
316
317 if (chainSge) {
318 /* The current buffer is a chain buffer.
319 * chainSge points to the previous Chain Element.
320 * Update its chain element Offset and Length (must
321 * include chain element size) fields.
322 * Old chain element is now complete.
323 */
324 u8 nextChain = (u8) (sgeOffset >> 2);
325 sgeOffset += ioc->SGE_size;
326 ioc->add_chain((char *)chainSge, nextChain, sgeOffset,
327 ioc->ChainBufferDMA + chain_dma_off);
328 } else {
329 /* The original MF buffer requires a chain buffer -
330 * set the offset.
331 * Last element in this MF is a chain element.
332 */
333 pReq->ChainOffset = (u8) (sgeOffset >> 2);
334 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03;
335 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
336 ioc->RequestNB[req_idx] = RequestNB;
337 }
338
339 sges_left -= sg_done;
340
341
342 /* NOTE: psge points to the beginning of the chain element
343 * in current buffer. Get a chain buffer.
344 */
345 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
346 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
347 "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
348 ioc->name, pReq->CDB[0], SCpnt));
349 return FAILED;
350 }
351
352 /* Update the tracking arrays.
353 * If chainSge == NULL, update ReqToChain, else ChainToChain
354 */
355 if (chainSge) {
356 ioc->ChainToChain[chain_idx] = newIndex;
357 } else {
358 ioc->ReqToChain[req_idx] = newIndex;
359 }
360 chain_idx = newIndex;
361 chain_dma_off = ioc->req_sz * chain_idx;
362
363 /* Populate the chainSGE for the current buffer.
364 * - Set chain buffer pointer to psge and fill
365 * out the Address and Flags fields.
366 */
367 chainSge = (char *) psge;
368 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Current buff @ %p (index 0x%x)",
369 ioc->name, psge, req_idx));
370
371 /* Start the SGE for the next buffer
372 */
373 psge = (char *) (ioc->ChainBuffer + chain_dma_off);
374 sgeOffset = 0;
375 sg_done = 0;
376
377 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Chain buff @ %p (index 0x%x)\n",
378 ioc->name, psge, chain_idx));
379
380 /* Start the SGE for the next buffer
381 */
382
383 goto nextSGEset;
384 }
385
386 return SUCCESS;
387} /* mptscsih_AddSGE() */
388
389static void
390mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
391 U32 SlotStatus)
392{
393 MPT_FRAME_HDR *mf;
394 SEPRequest_t *SEPMsg;
395
396 if (ioc->bus_type != SAS)
397 return;
398
399 /* Not supported for hidden raid components
400 */
401 if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
402 return;
403
404 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
405 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
406 ioc->name,__func__));
407 return;
408 }
409
410 SEPMsg = (SEPRequest_t *)mf;
411 SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
412 SEPMsg->Bus = vtarget->channel;
413 SEPMsg->TargetID = vtarget->id;
414 SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
415 SEPMsg->SlotStatus = SlotStatus;
416 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
417 "Sending SEP cmd=%x channel=%d id=%d\n",
418 ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
419 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
420}
421
422#ifdef CONFIG_FUSION_LOGGING
423/**
424 * mptscsih_info_scsiio - debug print info on reply frame
425 * @ioc: Pointer to MPT_ADAPTER structure
426 * @sc: original scsi cmnd pointer
427 * @pScsiReply: Pointer to MPT reply frame
428 *
429 * MPT_DEBUG_REPLY needs to be enabled to obtain this info
430 *
431 * Refer to lsi/mpi.h.
432 **/
433static void
434mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
435{
436 char *desc = NULL;
437 char *desc1 = NULL;
438 u16 ioc_status;
439 u8 skey, asc, ascq;
440
441 ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
442
443 switch (ioc_status) {
444
445 case MPI_IOCSTATUS_SUCCESS:
446 desc = "success";
447 break;
448 case MPI_IOCSTATUS_SCSI_INVALID_BUS:
449 desc = "invalid bus";
450 break;
451 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
452 desc = "invalid target_id";
453 break;
454 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
455 desc = "device not there";
456 break;
457 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
458 desc = "data overrun";
459 break;
460 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
461 desc = "data underrun";
462 break;
463 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
464 desc = "I/O data error";
465 break;
466 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
467 desc = "protocol error";
468 break;
469 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
470 desc = "task terminated";
471 break;
472 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
473 desc = "residual mismatch";
474 break;
475 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
476 desc = "task management failed";
477 break;
478 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
479 desc = "IOC terminated";
480 break;
481 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
482 desc = "ext terminated";
483 break;
484 default:
485 desc = "";
486 break;
487 }
488
489 switch (pScsiReply->SCSIStatus)
490 {
491
492 case MPI_SCSI_STATUS_SUCCESS:
493 desc1 = "success";
494 break;
495 case MPI_SCSI_STATUS_CHECK_CONDITION:
496 desc1 = "check condition";
497 break;
498 case MPI_SCSI_STATUS_CONDITION_MET:
499 desc1 = "condition met";
500 break;
501 case MPI_SCSI_STATUS_BUSY:
502 desc1 = "busy";
503 break;
504 case MPI_SCSI_STATUS_INTERMEDIATE:
505 desc1 = "intermediate";
506 break;
507 case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET:
508 desc1 = "intermediate condmet";
509 break;
510 case MPI_SCSI_STATUS_RESERVATION_CONFLICT:
511 desc1 = "reservation conflict";
512 break;
513 case MPI_SCSI_STATUS_COMMAND_TERMINATED:
514 desc1 = "command terminated";
515 break;
516 case MPI_SCSI_STATUS_TASK_SET_FULL:
517 desc1 = "task set full";
518 break;
519 case MPI_SCSI_STATUS_ACA_ACTIVE:
520 desc1 = "aca active";
521 break;
522 case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT:
523 desc1 = "fcpext device logged out";
524 break;
525 case MPI_SCSI_STATUS_FCPEXT_NO_LINK:
526 desc1 = "fcpext no link";
527 break;
528 case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED:
529 desc1 = "fcpext unassigned";
530 break;
531 default:
532 desc1 = "";
533 break;
534 }
535
536 scsi_print_command(sc);
537 printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %llu\n",
538 ioc->name, pScsiReply->Bus, pScsiReply->TargetID, sc->device->lun);
539 printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
540 "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
541 scsi_get_resid(sc));
542 printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, "
543 "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag),
544 le32_to_cpu(pScsiReply->TransferCount), sc->result);
545
546 printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), "
547 "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
548 ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus,
549 pScsiReply->SCSIState);
550
551 if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
552 skey = sc->sense_buffer[2] & 0x0F;
553 asc = sc->sense_buffer[12];
554 ascq = sc->sense_buffer[13];
555
556 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: "
557 "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq);
558 }
559
560 /*
561 * Look for + dump FCP ResponseInfo[]!
562 */
563 if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
564 pScsiReply->ResponseInfo)
565 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n",
566 ioc->name, le32_to_cpu(pScsiReply->ResponseInfo));
567}
568#endif
569
570/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
571/*
572 * mptscsih_io_done - Main SCSI IO callback routine registered to
573 * Fusion MPT (base) driver
574 * @ioc: Pointer to MPT_ADAPTER structure
575 * @mf: Pointer to original MPT request frame
576 * @r: Pointer to MPT reply frame (NULL if TurboReply)
577 *
578 * This routine is called from mpt.c::mpt_interrupt() at the completion
579 * of any SCSI IO request.
580 * This routine is registered with the Fusion MPT (base) driver at driver
581 * load/init time via the mpt_register() API call.
582 *
583 * Returns 1 indicating alloc'd request frame ptr should be freed.
584 */
585int
586mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
587{
588 struct scsi_cmnd *sc;
589 MPT_SCSI_HOST *hd;
590 SCSIIORequest_t *pScsiReq;
591 SCSIIOReply_t *pScsiReply;
592 u16 req_idx, req_idx_MR;
593 VirtDevice *vdevice;
594 VirtTarget *vtarget;
595
596 hd = shost_priv(ioc->sh);
597 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
598 req_idx_MR = (mr != NULL) ?
599 le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
600
601 /* Special case, where already freed message frame is received from
602 * Firmware. It happens with Resetting IOC.
603 * Return immediately. Do not care
604 */
605 if ((req_idx != req_idx_MR) ||
606 (le32_to_cpu(mf->u.frame.linkage.arg1) == 0xdeadbeaf))
607 return 0;
608
609 sc = mptscsih_getclear_scsi_lookup(ioc, req_idx);
610 if (sc == NULL) {
611 MPIHeader_t *hdr = (MPIHeader_t *)mf;
612
613 /* Remark: writeSDP1 will use the ScsiDoneCtx
614 * If a SCSI I/O cmd, device disabled by OS and
615 * completion done. Cannot touch sc struct. Just free mem.
616 */
617 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST)
618 printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n",
619 ioc->name);
620
621 mptscsih_freeChainBuffers(ioc, req_idx);
622 return 1;
623 }
624
625 if ((unsigned char *)mf != sc->host_scribble) {
626 mptscsih_freeChainBuffers(ioc, req_idx);
627 return 1;
628 }
629
630 if (ioc->bus_type == SAS) {
631 VirtDevice *vdevice = sc->device->hostdata;
632
633 if (!vdevice || !vdevice->vtarget ||
634 vdevice->vtarget->deleted) {
635 sc->result = DID_NO_CONNECT << 16;
636 goto out;
637 }
638 }
639
640 sc->host_scribble = NULL;
641 sc->result = DID_OK << 16; /* Set default reply as OK */
642 pScsiReq = (SCSIIORequest_t *) mf;
643 pScsiReply = (SCSIIOReply_t *) mr;
644
645 if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
646 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
647 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n",
648 ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag));
649 }else{
650 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
651 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
652 ioc->name, mf, mr, sc, req_idx));
653 }
654
655 if (pScsiReply == NULL) {
656 /* special context reply handling */
657 ;
658 } else {
659 u32 xfer_cnt;
660 u16 status;
661 u8 scsi_state, scsi_status;
662 u32 log_info;
663
664 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
665
666 scsi_state = pScsiReply->SCSIState;
667 scsi_status = pScsiReply->SCSIStatus;
668 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
669 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
670 log_info = le32_to_cpu(pScsiReply->IOCLogInfo);
671
672 /*
673 * if we get a data underrun indication, yet no data was
674 * transferred and the SCSI status indicates that the
675 * command was never started, change the data underrun
676 * to success
677 */
678 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
679 (scsi_status == MPI_SCSI_STATUS_BUSY ||
680 scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT ||
681 scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) {
682 status = MPI_IOCSTATUS_SUCCESS;
683 }
684
685 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
686 mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);
687
688 /*
689 * Look for + dump FCP ResponseInfo[]!
690 */
691 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
692 pScsiReply->ResponseInfo) {
693 printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%llu] "
694 "FCP_ResponseInfo=%08xh\n", ioc->name,
695 sc->device->host->host_no, sc->device->channel,
696 sc->device->id, sc->device->lun,
697 le32_to_cpu(pScsiReply->ResponseInfo));
698 }
699
700 switch(status) {
701 case MPI_IOCSTATUS_BUSY: /* 0x0002 */
702 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES: /* 0x0006 */
703 /* CHECKME!
704 * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry)
705 * But not: DID_BUS_BUSY lest one risk
706 * killing interrupt handler:-(
707 */
708 sc->result = SAM_STAT_BUSY;
709 break;
710
711 case MPI_IOCSTATUS_SCSI_INVALID_BUS: /* 0x0041 */
712 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID: /* 0x0042 */
713 sc->result = DID_BAD_TARGET << 16;
714 break;
715
716 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
717 /* Spoof to SCSI Selection Timeout! */
718 if (ioc->bus_type != FC)
719 sc->result = DID_NO_CONNECT << 16;
720 /* else fibre, just stall until rescan event */
721 else
722 sc->result = DID_REQUEUE << 16;
723
724 if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
725 hd->sel_timeout[pScsiReq->TargetID]++;
726
727 vdevice = sc->device->hostdata;
728 if (!vdevice)
729 break;
730 vtarget = vdevice->vtarget;
731 if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) {
732 mptscsih_issue_sep_command(ioc, vtarget,
733 MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED);
734 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON;
735 }
736 break;
737
738 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
739 if ( ioc->bus_type == SAS ) {
740 u16 ioc_status =
741 le16_to_cpu(pScsiReply->IOCStatus);
742 if ((ioc_status &
743 MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
744 &&
745 ((log_info & SAS_LOGINFO_MASK) ==
746 SAS_LOGINFO_NEXUS_LOSS)) {
747 VirtDevice *vdevice =
748 sc->device->hostdata;
749
750 /* flag the device as being in
751 * device removal delay so we can
752 * notify the midlayer to hold off
753 * on timeout eh */
754 if (vdevice && vdevice->
755 vtarget &&
756 vdevice->vtarget->
757 raidVolume)
758 printk(KERN_INFO
759 "Skipping Raid Volume"
760 "for inDMD\n");
761 else if (vdevice &&
762 vdevice->vtarget)
763 vdevice->vtarget->
764 inDMD = 1;
765
766 sc->result =
767 (DID_TRANSPORT_DISRUPTED
768 << 16);
769 break;
770 }
771 } else if (ioc->bus_type == FC) {
772 /*
773 * The FC IOC may kill a request for variety of
774 * reasons, some of which may be recovered by a
775 * retry, some which are unlikely to be
776 * recovered. Return DID_ERROR instead of
777 * DID_RESET to permit retry of the command,
778 * just not an infinite number of them
779 */
780 sc->result = DID_ERROR << 16;
781 break;
782 }
783
784 /*
785 * Allow non-SAS & non-NEXUS_LOSS to drop into below code
786 */
787 fallthrough;
788
789 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
790 /* Linux handles an unsolicited DID_RESET better
791 * than an unsolicited DID_ABORT.
792 */
793 sc->result = DID_RESET << 16;
794 break;
795
796 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
797 if (ioc->bus_type == FC)
798 sc->result = DID_ERROR << 16;
799 else
800 sc->result = DID_RESET << 16;
801 break;
802
803 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: /* 0x0049 */
804 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
805 if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
806 sc->result=DID_SOFT_ERROR << 16;
807 else /* Sufficient data transfer occurred */
808 sc->result = (DID_OK << 16) | scsi_status;
809 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
810 "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
811 ioc->name, sc->result, sc->device->channel, sc->device->id));
812 break;
813
814 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
815 /*
816 * Do upfront check for valid SenseData and give it
817 * precedence!
818 */
819 sc->result = (DID_OK << 16) | scsi_status;
820 if (!(scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
821
822 /*
823 * For an Errata on LSI53C1030
824 * When the length of request data
825 * and transfer data are different
826 * with result of command (READ or VERIFY),
827 * DID_SOFT_ERROR is set.
828 */
829 if (ioc->bus_type == SPI) {
830 if ((pScsiReq->CDB[0] == READ_6 && ((pScsiReq->CDB[1] & 0x02) == 0)) ||
831 pScsiReq->CDB[0] == READ_10 ||
832 pScsiReq->CDB[0] == READ_12 ||
833 (pScsiReq->CDB[0] == READ_16 &&
834 ((pScsiReq->CDB[1] & 0x02) == 0)) ||
835 pScsiReq->CDB[0] == VERIFY ||
836 pScsiReq->CDB[0] == VERIFY_16) {
837 if (scsi_bufflen(sc) !=
838 xfer_cnt) {
839 sc->result =
840 DID_SOFT_ERROR << 16;
841 printk(KERN_WARNING "Errata"
842 "on LSI53C1030 occurred."
843 "sc->req_bufflen=0x%02x,"
844 "xfer_cnt=0x%02x\n",
845 scsi_bufflen(sc),
846 xfer_cnt);
847 }
848 }
849 }
850
851 if (xfer_cnt < sc->underflow) {
852 if (scsi_status == SAM_STAT_BUSY)
853 sc->result = SAM_STAT_BUSY;
854 else
855 sc->result = DID_SOFT_ERROR << 16;
856 }
857 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
858 /* What to do?
859 */
860 sc->result = DID_SOFT_ERROR << 16;
861 }
862 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
863 /* Not real sure here either... */
864 sc->result = DID_RESET << 16;
865 }
866 }
867
868
869 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
870 " sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
871 ioc->name, sc->underflow));
872 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
873 " ActBytesXferd=%02xh\n", ioc->name, xfer_cnt));
874
875 /* Report Queue Full
876 */
877 if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
878 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
879
880 break;
881
882 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: /* 0x0044 */
883 scsi_set_resid(sc, 0);
884 fallthrough;
885 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
886 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
887 sc->result = (DID_OK << 16) | scsi_status;
888 if (scsi_state == 0) {
889 ;
890 } else if (scsi_state &
891 MPI_SCSI_STATE_AUTOSENSE_VALID) {
892
893 /*
894 * For potential trouble on LSI53C1030.
895 * (date:2007.xx.)
896 * It is checked whether the length of
897 * request data is equal to
898 * the length of transfer and residual.
899 * MEDIUM_ERROR is set by incorrect data.
900 */
901 if ((ioc->bus_type == SPI) &&
902 (sc->sense_buffer[2] & 0x20)) {
903 u32 difftransfer;
904 difftransfer =
905 sc->sense_buffer[3] << 24 |
906 sc->sense_buffer[4] << 16 |
907 sc->sense_buffer[5] << 8 |
908 sc->sense_buffer[6];
909 if (((sc->sense_buffer[3] & 0x80) ==
910 0x80) && (scsi_bufflen(sc)
911 != xfer_cnt)) {
912 sc->sense_buffer[2] =
913 MEDIUM_ERROR;
914 sc->sense_buffer[12] = 0xff;
915 sc->sense_buffer[13] = 0xff;
916 printk(KERN_WARNING"Errata"
917 "on LSI53C1030 occurred."
918 "sc->req_bufflen=0x%02x,"
919 "xfer_cnt=0x%02x\n" ,
920 scsi_bufflen(sc),
921 xfer_cnt);
922 }
923 if (((sc->sense_buffer[3] & 0x80)
924 != 0x80) &&
925 (scsi_bufflen(sc) !=
926 xfer_cnt + difftransfer)) {
927 sc->sense_buffer[2] =
928 MEDIUM_ERROR;
929 sc->sense_buffer[12] = 0xff;
930 sc->sense_buffer[13] = 0xff;
931 printk(KERN_WARNING
932 "Errata on LSI53C1030 occurred"
933 "sc->req_bufflen=0x%02x,"
934 " xfer_cnt=0x%02x,"
935 "difftransfer=0x%02x\n",
936 scsi_bufflen(sc),
937 xfer_cnt,
938 difftransfer);
939 }
940 }
941
942 /*
943 * If running against circa 200003dd 909 MPT f/w,
944 * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
945 * (QUEUE_FULL) returned from device! --> get 0x0000?128
946 * and with SenseBytes set to 0.
947 */
948 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
949 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
950
951 }
952 else if (scsi_state &
953 (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
954 ) {
955 /*
956 * What to do?
957 */
958 sc->result = DID_SOFT_ERROR << 16;
959 }
960 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
961 /* Not real sure here either... */
962 sc->result = DID_RESET << 16;
963 }
964 else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
965 /* Device Inq. data indicates that it supports
966 * QTags, but rejects QTag messages.
967 * This command completed OK.
968 *
969 * Not real sure here either so do nothing... */
970 }
971
972 if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
973 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
974
975 /* Add handling of:
976 * Reservation Conflict, Busy,
977 * Command Terminated, CHECK
978 */
979 break;
980
981 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
982 sc->result = DID_SOFT_ERROR << 16;
983 break;
984
985 case MPI_IOCSTATUS_INVALID_FUNCTION: /* 0x0001 */
986 case MPI_IOCSTATUS_INVALID_SGL: /* 0x0003 */
987 case MPI_IOCSTATUS_INTERNAL_ERROR: /* 0x0004 */
988 case MPI_IOCSTATUS_RESERVED: /* 0x0005 */
989 case MPI_IOCSTATUS_INVALID_FIELD: /* 0x0007 */
990 case MPI_IOCSTATUS_INVALID_STATE: /* 0x0008 */
991 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
992 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED: /* 0x004A */
993 default:
994 /*
995 * What to do?
996 */
997 sc->result = DID_SOFT_ERROR << 16;
998 break;
999
1000 } /* switch(status) */
1001
1002#ifdef CONFIG_FUSION_LOGGING
1003 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
1004 mptscsih_info_scsiio(ioc, sc, pScsiReply);
1005#endif
1006
1007 } /* end of address reply case */
1008out:
1009 /* Unmap the DMA buffers, if any. */
1010 scsi_dma_unmap(sc);
1011
1012 scsi_done(sc); /* Issue the command callback */
1013
1014 /* Free Chain buffers */
1015 mptscsih_freeChainBuffers(ioc, req_idx);
1016 return 1;
1017}
1018
1019/*
1020 * mptscsih_flush_running_cmds - For each command found, search
1021 * Scsi_Host instance taskQ and reply to OS.
1022 * Called only if recovering from a FW reload.
1023 * @hd: Pointer to a SCSI HOST structure
1024 *
1025 * Returns: None.
1026 *
1027 * Must be called while new I/Os are being queued.
1028 */
1029void
1030mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
1031{
1032 MPT_ADAPTER *ioc = hd->ioc;
1033 struct scsi_cmnd *sc;
1034 SCSIIORequest_t *mf = NULL;
1035 int ii;
1036 int channel, id;
1037
1038 for (ii= 0; ii < ioc->req_depth; ii++) {
1039 sc = mptscsih_getclear_scsi_lookup(ioc, ii);
1040 if (!sc)
1041 continue;
1042 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1043 if (!mf)
1044 continue;
1045 channel = mf->Bus;
1046 id = mf->TargetID;
1047 mptscsih_freeChainBuffers(ioc, ii);
1048 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1049 if ((unsigned char *)mf != sc->host_scribble)
1050 continue;
1051 scsi_dma_unmap(sc);
1052 sc->result = DID_RESET << 16;
1053 sc->host_scribble = NULL;
1054 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
1055 "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, "
1056 "idx=%x\n", ioc->name, channel, id, sc, mf, ii));
1057 scsi_done(sc);
1058 }
1059}
1060EXPORT_SYMBOL(mptscsih_flush_running_cmds);
1061
1062/*
1063 * mptscsih_search_running_cmds - Delete any commands associated
1064 * with the specified target and lun. Function called only
1065 * when a lun is disable by mid-layer.
1066 * Do NOT access the referenced scsi_cmnd structure or
1067 * members. Will cause either a paging or NULL ptr error.
1068 * (BUT, BUT, BUT, the code does reference it! - mdr)
1069 * @hd: Pointer to a SCSI HOST structure
1070 * @vdevice: per device private data
1071 *
1072 * Returns: None.
1073 *
1074 * Called from slave_destroy.
1075 */
1076static void
1077mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
1078{
1079 SCSIIORequest_t *mf = NULL;
1080 int ii;
1081 struct scsi_cmnd *sc;
1082 struct scsi_lun lun;
1083 MPT_ADAPTER *ioc = hd->ioc;
1084 unsigned long flags;
1085
1086 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1087 for (ii = 0; ii < ioc->req_depth; ii++) {
1088 if ((sc = ioc->ScsiLookup[ii]) != NULL) {
1089
1090 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1091 if (mf == NULL)
1092 continue;
1093 /* If the device is a hidden raid component, then its
1094 * expected that the mf->function will be RAID_SCSI_IO
1095 */
1096 if (vdevice->vtarget->tflags &
1097 MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
1098 MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
1099 continue;
1100
1101 int_to_scsilun(vdevice->lun, &lun);
1102 if ((mf->Bus != vdevice->vtarget->channel) ||
1103 (mf->TargetID != vdevice->vtarget->id) ||
1104 memcmp(lun.scsi_lun, mf->LUN, 8))
1105 continue;
1106
1107 if ((unsigned char *)mf != sc->host_scribble)
1108 continue;
1109 ioc->ScsiLookup[ii] = NULL;
1110 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1111 mptscsih_freeChainBuffers(ioc, ii);
1112 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1113 scsi_dma_unmap(sc);
1114 sc->host_scribble = NULL;
1115 sc->result = DID_NO_CONNECT << 16;
1116 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device,
1117 MYIOC_s_FMT "completing cmds: fw_channel %d, "
1118 "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name,
1119 vdevice->vtarget->channel, vdevice->vtarget->id,
1120 sc, mf, ii));
1121 scsi_done(sc);
1122 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1123 }
1124 }
1125 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1126 return;
1127}
1128
1129/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1130
1131/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1132/*
1133 * mptscsih_report_queue_full - Report QUEUE_FULL status returned
1134 * from a SCSI target device.
1135 * @sc: Pointer to scsi_cmnd structure
1136 * @pScsiReply: Pointer to SCSIIOReply_t
1137 * @pScsiReq: Pointer to original SCSI request
1138 *
1139 * This routine periodically reports QUEUE_FULL status returned from a
1140 * SCSI target device. It reports this to the console via kernel
1141 * printk() API call, not more than once every 10 seconds.
1142 */
1143static void
1144mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1145{
1146 long time = jiffies;
1147 MPT_SCSI_HOST *hd;
1148 MPT_ADAPTER *ioc;
1149
1150 if (sc->device == NULL)
1151 return;
1152 if (sc->device->host == NULL)
1153 return;
1154 if ((hd = shost_priv(sc->device->host)) == NULL)
1155 return;
1156 ioc = hd->ioc;
1157 if (time - hd->last_queue_full > 10 * HZ) {
1158 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%llu) reported QUEUE_FULL!\n",
1159 ioc->name, 0, sc->device->id, sc->device->lun));
1160 hd->last_queue_full = time;
1161 }
1162}
1163
1164/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1165/*
1166 * mptscsih_remove - Removed scsi devices
1167 * @pdev: Pointer to pci_dev structure
1168 *
1169 *
1170 */
1171void
1172mptscsih_remove(struct pci_dev *pdev)
1173{
1174 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1175 struct Scsi_Host *host = ioc->sh;
1176 MPT_SCSI_HOST *hd;
1177 int sz1;
1178
1179 if (host == NULL)
1180 hd = NULL;
1181 else
1182 hd = shost_priv(host);
1183
1184 mptscsih_shutdown(pdev);
1185
1186 sz1=0;
1187
1188 if (ioc->ScsiLookup != NULL) {
1189 sz1 = ioc->req_depth * sizeof(void *);
1190 kfree(ioc->ScsiLookup);
1191 ioc->ScsiLookup = NULL;
1192 }
1193
1194 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1195 "Free'd ScsiLookup (%d) memory\n",
1196 ioc->name, sz1));
1197
1198 if (hd)
1199 kfree(hd->info_kbuf);
1200
1201 /* NULL the Scsi_Host pointer
1202 */
1203 ioc->sh = NULL;
1204
1205 if (host)
1206 scsi_host_put(host);
1207 mpt_detach(pdev);
1208
1209}
1210
1211/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1212/*
1213 * mptscsih_shutdown - reboot notifier
1214 *
1215 */
1216void
1217mptscsih_shutdown(struct pci_dev *pdev)
1218{
1219}
1220
1221#ifdef CONFIG_PM
1222/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1223/*
1224 * mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1225 *
1226 *
1227 */
1228int
1229mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1230{
1231 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1232
1233 scsi_block_requests(ioc->sh);
1234 mptscsih_shutdown(pdev);
1235 return mpt_suspend(pdev,state);
1236}
1237
1238/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1239/*
1240 * mptscsih_resume - Fusion MPT scsi driver resume routine.
1241 *
1242 *
1243 */
1244int
1245mptscsih_resume(struct pci_dev *pdev)
1246{
1247 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1248 int rc;
1249
1250 rc = mpt_resume(pdev);
1251 scsi_unblock_requests(ioc->sh);
1252 return rc;
1253}
1254
1255#endif
1256
1257/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1258/**
1259 * mptscsih_info - Return information about MPT adapter
1260 * @SChost: Pointer to Scsi_Host structure
1261 *
1262 * (linux scsi_host_template.info routine)
1263 *
1264 * Returns pointer to buffer where information was written.
1265 */
1266const char *
1267mptscsih_info(struct Scsi_Host *SChost)
1268{
1269 MPT_SCSI_HOST *h;
1270 int size = 0;
1271
1272 h = shost_priv(SChost);
1273
1274 if (h->info_kbuf == NULL)
1275 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1276 return h->info_kbuf;
1277 h->info_kbuf[0] = '\0';
1278
1279 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1280 h->info_kbuf[size-1] = '\0';
1281
1282 return h->info_kbuf;
1283}
1284
1285int mptscsih_show_info(struct seq_file *m, struct Scsi_Host *host)
1286{
1287 MPT_SCSI_HOST *hd = shost_priv(host);
1288 MPT_ADAPTER *ioc = hd->ioc;
1289
1290 seq_printf(m, "%s: %s, ", ioc->name, ioc->prod_name);
1291 seq_printf(m, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1292 seq_printf(m, "Ports=%d, ", ioc->facts.NumberOfPorts);
1293 seq_printf(m, "MaxQ=%d\n", ioc->req_depth);
1294
1295 return 0;
1296}
1297
1298/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1299#define ADD_INDEX_LOG(req_ent) do { } while(0)
1300
1301/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1302/**
1303 * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1304 * @SCpnt: Pointer to scsi_cmnd structure
1305 *
1306 * (linux scsi_host_template.queuecommand routine)
1307 * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest
1308 * from a linux scsi_cmnd request and send it to the IOC.
1309 *
1310 * Returns 0. (rtn value discarded by linux scsi mid-layer)
1311 */
1312int
1313mptscsih_qcmd(struct scsi_cmnd *SCpnt)
1314{
1315 MPT_SCSI_HOST *hd;
1316 MPT_FRAME_HDR *mf;
1317 SCSIIORequest_t *pScsiReq;
1318 VirtDevice *vdevice = SCpnt->device->hostdata;
1319 u32 datalen;
1320 u32 scsictl;
1321 u32 scsidir;
1322 u32 cmd_len;
1323 int my_idx;
1324 int ii;
1325 MPT_ADAPTER *ioc;
1326
1327 hd = shost_priv(SCpnt->device->host);
1328 ioc = hd->ioc;
1329
1330 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p\n",
1331 ioc->name, SCpnt));
1332
1333 if (ioc->taskmgmt_quiesce_io)
1334 return SCSI_MLQUEUE_HOST_BUSY;
1335
1336 /*
1337 * Put together a MPT SCSI request...
1338 */
1339 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1340 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1341 ioc->name));
1342 return SCSI_MLQUEUE_HOST_BUSY;
1343 }
1344
1345 pScsiReq = (SCSIIORequest_t *) mf;
1346
1347 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1348
1349 ADD_INDEX_LOG(my_idx);
1350
1351 /* TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1352 * Seems we may receive a buffer (datalen>0) even when there
1353 * will be no data transfer! GRRRRR...
1354 */
1355 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1356 datalen = scsi_bufflen(SCpnt);
1357 scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */
1358 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1359 datalen = scsi_bufflen(SCpnt);
1360 scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */
1361 } else {
1362 datalen = 0;
1363 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1364 }
1365
1366 /* Default to untagged. Once a target structure has been allocated,
1367 * use the Inquiry data to determine if device supports tagged.
1368 */
1369 if ((vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES) &&
1370 SCpnt->device->tagged_supported)
1371 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1372 else
1373 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1374
1375
1376 /* Use the above information to set up the message frame
1377 */
1378 pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1379 pScsiReq->Bus = vdevice->vtarget->channel;
1380 pScsiReq->ChainOffset = 0;
1381 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
1382 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1383 else
1384 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1385 pScsiReq->CDBLength = SCpnt->cmd_len;
1386 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1387 pScsiReq->Reserved = 0;
1388 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1389 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1390 pScsiReq->Control = cpu_to_le32(scsictl);
1391
1392 /*
1393 * Write SCSI CDB into the message
1394 */
1395 cmd_len = SCpnt->cmd_len;
1396 for (ii=0; ii < cmd_len; ii++)
1397 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1398
1399 for (ii=cmd_len; ii < 16; ii++)
1400 pScsiReq->CDB[ii] = 0;
1401
1402 /* DataLength */
1403 pScsiReq->DataLength = cpu_to_le32(datalen);
1404
1405 /* SenseBuffer low address */
1406 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1407 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1408
1409 /* Now add the SG list
1410 * Always have a SGE even if null length.
1411 */
1412 if (datalen == 0) {
1413 /* Add a NULL SGE */
1414 ioc->add_sge((char *)&pScsiReq->SGL,
1415 MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1416 (dma_addr_t) -1);
1417 } else {
1418 /* Add a 32 or 64 bit SGE */
1419 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1420 goto fail;
1421 }
1422
1423 SCpnt->host_scribble = (unsigned char *)mf;
1424 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1425
1426 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1427 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1428 ioc->name, SCpnt, mf, my_idx));
1429 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1430 return 0;
1431
1432 fail:
1433 mptscsih_freeChainBuffers(ioc, my_idx);
1434 mpt_free_msg_frame(ioc, mf);
1435 return SCSI_MLQUEUE_HOST_BUSY;
1436}
1437
1438/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1439/*
1440 * mptscsih_freeChainBuffers - Function to free chain buffers associated
1441 * with a SCSI IO request
1442 * @hd: Pointer to the MPT_SCSI_HOST instance
1443 * @req_idx: Index of the SCSI IO request frame.
1444 *
1445 * Called if SG chain buffer allocation fails and mptscsih callbacks.
1446 * No return.
1447 */
1448static void
1449mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1450{
1451 MPT_FRAME_HDR *chain;
1452 unsigned long flags;
1453 int chain_idx;
1454 int next;
1455
1456 /* Get the first chain index and reset
1457 * tracker state.
1458 */
1459 chain_idx = ioc->ReqToChain[req_idx];
1460 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1461
1462 while (chain_idx != MPT_HOST_NO_CHAIN) {
1463
1464 /* Save the next chain buffer index */
1465 next = ioc->ChainToChain[chain_idx];
1466
1467 /* Free this chain buffer and reset
1468 * tracker
1469 */
1470 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1471
1472 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1473 + (chain_idx * ioc->req_sz));
1474
1475 spin_lock_irqsave(&ioc->FreeQlock, flags);
1476 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1477 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1478
1479 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1480 ioc->name, chain_idx));
1481
1482 /* handle next */
1483 chain_idx = next;
1484 }
1485 return;
1486}
1487
1488/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1489/*
1490 * Reset Handling
1491 */
1492
1493/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1494/**
1495 * mptscsih_IssueTaskMgmt - Generic send Task Management function.
1496 * @hd: Pointer to MPT_SCSI_HOST structure
1497 * @type: Task Management type
1498 * @channel: channel number for task management
1499 * @id: Logical Target ID for reset (if appropriate)
1500 * @lun: Logical Unit for reset (if appropriate)
1501 * @ctx2abort: Context for the task to be aborted (if appropriate)
1502 * @timeout: timeout for task management control
1503 *
1504 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1505 * or a non-interrupt thread. In the former, must not call schedule().
1506 *
1507 * Not all fields are meaningfull for all task types.
1508 *
1509 * Returns 0 for SUCCESS, or FAILED.
1510 *
1511 **/
1512int
1513mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, u64 lun,
1514 int ctx2abort, ulong timeout)
1515{
1516 MPT_FRAME_HDR *mf;
1517 SCSITaskMgmt_t *pScsiTm;
1518 int ii;
1519 int retval;
1520 MPT_ADAPTER *ioc = hd->ioc;
1521 u8 issue_hard_reset;
1522 u32 ioc_raw_state;
1523 unsigned long time_count;
1524
1525 issue_hard_reset = 0;
1526 ioc_raw_state = mpt_GetIocState(ioc, 0);
1527
1528 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1529 printk(MYIOC_s_WARN_FMT
1530 "TaskMgmt type=%x: IOC Not operational (0x%x)!\n",
1531 ioc->name, type, ioc_raw_state);
1532 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
1533 ioc->name, __func__);
1534 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1535 printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset "
1536 "FAILED!!\n", ioc->name);
1537 return 0;
1538 }
1539
1540 /* DOORBELL ACTIVE check is not required if
1541 * MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported.
1542 */
1543
1544 if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q)
1545 && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) &&
1546 (ioc_raw_state & MPI_DOORBELL_ACTIVE)) {
1547 printk(MYIOC_s_WARN_FMT
1548 "TaskMgmt type=%x: ioc_state: "
1549 "DOORBELL_ACTIVE (0x%x)!\n",
1550 ioc->name, type, ioc_raw_state);
1551 return FAILED;
1552 }
1553
1554 mutex_lock(&ioc->taskmgmt_cmds.mutex);
1555 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
1556 mf = NULL;
1557 retval = FAILED;
1558 goto out;
1559 }
1560
1561 /* Return Fail to calling function if no message frames available.
1562 */
1563 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1564 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1565 "TaskMgmt no msg frames!!\n", ioc->name));
1566 retval = FAILED;
1567 mpt_clear_taskmgmt_in_progress_flag(ioc);
1568 goto out;
1569 }
1570 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
1571 ioc->name, mf));
1572
1573 /* Format the Request
1574 */
1575 pScsiTm = (SCSITaskMgmt_t *) mf;
1576 pScsiTm->TargetID = id;
1577 pScsiTm->Bus = channel;
1578 pScsiTm->ChainOffset = 0;
1579 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1580
1581 pScsiTm->Reserved = 0;
1582 pScsiTm->TaskType = type;
1583 pScsiTm->Reserved1 = 0;
1584 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1585 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1586
1587 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1588
1589 for (ii=0; ii < 7; ii++)
1590 pScsiTm->Reserved2[ii] = 0;
1591
1592 pScsiTm->TaskMsgContext = ctx2abort;
1593
1594 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) "
1595 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort,
1596 type, timeout));
1597
1598 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1599
1600 INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1601 time_count = jiffies;
1602 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1603 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1604 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1605 else {
1606 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1607 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1608 if (retval) {
1609 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1610 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n",
1611 ioc->name, mf, retval));
1612 mpt_free_msg_frame(ioc, mf);
1613 mpt_clear_taskmgmt_in_progress_flag(ioc);
1614 goto out;
1615 }
1616 }
1617
1618 wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
1619 timeout*HZ);
1620 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
1621 retval = FAILED;
1622 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
1623 "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf));
1624 mpt_clear_taskmgmt_in_progress_flag(ioc);
1625 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
1626 goto out;
1627 issue_hard_reset = 1;
1628 goto out;
1629 }
1630
1631 retval = mptscsih_taskmgmt_reply(ioc, type,
1632 (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply);
1633
1634 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1635 "TaskMgmt completed (%d seconds)\n",
1636 ioc->name, jiffies_to_msecs(jiffies - time_count)/1000));
1637
1638 out:
1639
1640 CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1641 if (issue_hard_reset) {
1642 printk(MYIOC_s_WARN_FMT
1643 "Issuing Reset from %s!! doorbell=0x%08x\n",
1644 ioc->name, __func__, mpt_GetIocState(ioc, 0));
1645 retval = (ioc->bus_type == SAS) ?
1646 mpt_HardResetHandler(ioc, CAN_SLEEP) :
1647 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1648 mpt_free_msg_frame(ioc, mf);
1649 }
1650
1651 retval = (retval == 0) ? 0 : FAILED;
1652 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
1653 return retval;
1654}
1655EXPORT_SYMBOL(mptscsih_IssueTaskMgmt);
1656
1657static int
1658mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1659{
1660 switch (ioc->bus_type) {
1661 case FC:
1662 return 40;
1663 case SAS:
1664 return 30;
1665 case SPI:
1666 default:
1667 return 10;
1668 }
1669}
1670
1671/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1672/**
1673 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1674 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1675 *
1676 * (linux scsi_host_template.eh_abort_handler routine)
1677 *
1678 * Returns SUCCESS or FAILED.
1679 **/
1680int
1681mptscsih_abort(struct scsi_cmnd * SCpnt)
1682{
1683 MPT_SCSI_HOST *hd;
1684 MPT_FRAME_HDR *mf;
1685 u32 ctx2abort;
1686 int scpnt_idx;
1687 int retval;
1688 VirtDevice *vdevice;
1689 MPT_ADAPTER *ioc;
1690
1691 /* If we can't locate our host adapter structure, return FAILED status.
1692 */
1693 if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1694 SCpnt->result = DID_RESET << 16;
1695 scsi_done(SCpnt);
1696 printk(KERN_ERR MYNAM ": task abort: "
1697 "can't locate host! (sc=%p)\n", SCpnt);
1698 return FAILED;
1699 }
1700
1701 ioc = hd->ioc;
1702 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1703 ioc->name, SCpnt);
1704 scsi_print_command(SCpnt);
1705
1706 vdevice = SCpnt->device->hostdata;
1707 if (!vdevice || !vdevice->vtarget) {
1708 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1709 "task abort: device has been deleted (sc=%p)\n",
1710 ioc->name, SCpnt));
1711 SCpnt->result = DID_NO_CONNECT << 16;
1712 scsi_done(SCpnt);
1713 retval = SUCCESS;
1714 goto out;
1715 }
1716
1717 /* Task aborts are not supported for hidden raid components.
1718 */
1719 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1720 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1721 "task abort: hidden raid component (sc=%p)\n",
1722 ioc->name, SCpnt));
1723 SCpnt->result = DID_RESET << 16;
1724 retval = FAILED;
1725 goto out;
1726 }
1727
1728 /* Task aborts are not supported for volumes.
1729 */
1730 if (vdevice->vtarget->raidVolume) {
1731 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1732 "task abort: raid volume (sc=%p)\n",
1733 ioc->name, SCpnt));
1734 SCpnt->result = DID_RESET << 16;
1735 retval = FAILED;
1736 goto out;
1737 }
1738
1739 /* Find this command
1740 */
1741 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1742 /* Cmd not found in ScsiLookup.
1743 * Do OS callback.
1744 */
1745 SCpnt->result = DID_RESET << 16;
1746 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1747 "Command not in the active list! (sc=%p)\n", ioc->name,
1748 SCpnt));
1749 retval = SUCCESS;
1750 goto out;
1751 }
1752
1753 if (ioc->timeouts < -1)
1754 ioc->timeouts++;
1755
1756 if (mpt_fwfault_debug)
1757 mpt_halt_firmware(ioc);
1758
1759 /* Most important! Set TaskMsgContext to SCpnt's MsgContext!
1760 * (the IO to be ABORT'd)
1761 *
1762 * NOTE: Since we do not byteswap MsgContext, we do not
1763 * swap it here either. It is an opaque cookie to
1764 * the controller, so it does not matter. -DaveM
1765 */
1766 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1767 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1768 retval = mptscsih_IssueTaskMgmt(hd,
1769 MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1770 vdevice->vtarget->channel,
1771 vdevice->vtarget->id, vdevice->lun,
1772 ctx2abort, mptscsih_get_tm_timeout(ioc));
1773
1774 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) {
1775 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1776 "task abort: command still in active list! (sc=%p)\n",
1777 ioc->name, SCpnt));
1778 retval = FAILED;
1779 } else {
1780 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1781 "task abort: command cleared from active list! (sc=%p)\n",
1782 ioc->name, SCpnt));
1783 retval = SUCCESS;
1784 }
1785
1786 out:
1787 printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n",
1788 ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval,
1789 SCpnt);
1790
1791 return retval;
1792}
1793
1794/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1795/**
1796 * mptscsih_dev_reset - Perform a SCSI LOGICAL_UNIT_RESET!
1797 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1798 *
1799 * (linux scsi_host_template.eh_dev_reset_handler routine)
1800 *
1801 * Returns SUCCESS or FAILED.
1802 **/
1803int
1804mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1805{
1806 MPT_SCSI_HOST *hd;
1807 int retval;
1808 VirtDevice *vdevice;
1809 MPT_ADAPTER *ioc;
1810
1811 /* If we can't locate our host adapter structure, return FAILED status.
1812 */
1813 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1814 printk(KERN_ERR MYNAM ": lun reset: "
1815 "Can't locate host! (sc=%p)\n", SCpnt);
1816 return FAILED;
1817 }
1818
1819 ioc = hd->ioc;
1820 printk(MYIOC_s_INFO_FMT "attempting lun reset! (sc=%p)\n",
1821 ioc->name, SCpnt);
1822 scsi_print_command(SCpnt);
1823
1824 vdevice = SCpnt->device->hostdata;
1825 if (!vdevice || !vdevice->vtarget) {
1826 retval = 0;
1827 goto out;
1828 }
1829
1830 retval = mptscsih_IssueTaskMgmt(hd,
1831 MPI_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET,
1832 vdevice->vtarget->channel,
1833 vdevice->vtarget->id, vdevice->lun, 0,
1834 mptscsih_get_tm_timeout(ioc));
1835
1836 out:
1837 printk (MYIOC_s_INFO_FMT "lun reset: %s (sc=%p)\n",
1838 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1839
1840 if (retval == 0)
1841 return SUCCESS;
1842 else
1843 return FAILED;
1844}
1845
1846/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1847/**
1848 * mptscsih_target_reset - Perform a SCSI TARGET_RESET!
1849 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1850 *
1851 * (linux scsi_host_template.eh_target_reset_handler routine)
1852 *
1853 * Returns SUCCESS or FAILED.
1854 **/
1855int
1856mptscsih_target_reset(struct scsi_cmnd * SCpnt)
1857{
1858 MPT_SCSI_HOST *hd;
1859 int retval;
1860 VirtDevice *vdevice;
1861 MPT_ADAPTER *ioc;
1862
1863 /* If we can't locate our host adapter structure, return FAILED status.
1864 */
1865 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1866 printk(KERN_ERR MYNAM ": target reset: "
1867 "Can't locate host! (sc=%p)\n", SCpnt);
1868 return FAILED;
1869 }
1870
1871 ioc = hd->ioc;
1872 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1873 ioc->name, SCpnt);
1874 scsi_print_command(SCpnt);
1875
1876 vdevice = SCpnt->device->hostdata;
1877 if (!vdevice || !vdevice->vtarget) {
1878 retval = 0;
1879 goto out;
1880 }
1881
1882 /* Target reset to hidden raid component is not supported
1883 */
1884 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1885 retval = FAILED;
1886 goto out;
1887 }
1888
1889 retval = mptscsih_IssueTaskMgmt(hd,
1890 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1891 vdevice->vtarget->channel,
1892 vdevice->vtarget->id, 0, 0,
1893 mptscsih_get_tm_timeout(ioc));
1894
1895 out:
1896 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1897 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1898
1899 if (retval == 0)
1900 return SUCCESS;
1901 else
1902 return FAILED;
1903}
1904
1905
1906/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1907/**
1908 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant
1909 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1910 *
1911 * (linux scsi_host_template.eh_bus_reset_handler routine)
1912 *
1913 * Returns SUCCESS or FAILED.
1914 **/
1915int
1916mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1917{
1918 MPT_SCSI_HOST *hd;
1919 int retval;
1920 VirtDevice *vdevice;
1921 MPT_ADAPTER *ioc;
1922
1923 /* If we can't locate our host adapter structure, return FAILED status.
1924 */
1925 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1926 printk(KERN_ERR MYNAM ": bus reset: "
1927 "Can't locate host! (sc=%p)\n", SCpnt);
1928 return FAILED;
1929 }
1930
1931 ioc = hd->ioc;
1932 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1933 ioc->name, SCpnt);
1934 scsi_print_command(SCpnt);
1935
1936 if (ioc->timeouts < -1)
1937 ioc->timeouts++;
1938
1939 vdevice = SCpnt->device->hostdata;
1940 if (!vdevice || !vdevice->vtarget)
1941 return SUCCESS;
1942 retval = mptscsih_IssueTaskMgmt(hd,
1943 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1944 vdevice->vtarget->channel, 0, 0, 0,
1945 mptscsih_get_tm_timeout(ioc));
1946
1947 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1948 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1949
1950 if (retval == 0)
1951 return SUCCESS;
1952 else
1953 return FAILED;
1954}
1955
1956/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1957/**
1958 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1959 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1960 *
1961 * (linux scsi_host_template.eh_host_reset_handler routine)
1962 *
1963 * Returns SUCCESS or FAILED.
1964 */
1965int
1966mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1967{
1968 MPT_SCSI_HOST * hd;
1969 int status = SUCCESS;
1970 MPT_ADAPTER *ioc;
1971 int retval;
1972
1973 /* If we can't locate the host to reset, then we failed. */
1974 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1975 printk(KERN_ERR MYNAM ": host reset: "
1976 "Can't locate host! (sc=%p)\n", SCpnt);
1977 return FAILED;
1978 }
1979
1980 /* make sure we have no outstanding commands at this stage */
1981 mptscsih_flush_running_cmds(hd);
1982
1983 ioc = hd->ioc;
1984 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
1985 ioc->name, SCpnt);
1986
1987 /* If our attempts to reset the host failed, then return a failed
1988 * status. The host will be taken off line by the SCSI mid-layer.
1989 */
1990 retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1991 if (retval < 0)
1992 status = FAILED;
1993 else
1994 status = SUCCESS;
1995
1996 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
1997 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1998
1999 return status;
2000}
2001
2002static int
2003mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
2004 SCSITaskMgmtReply_t *pScsiTmReply)
2005{
2006 u16 iocstatus;
2007 u32 termination_count;
2008 int retval;
2009
2010 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
2011 retval = FAILED;
2012 goto out;
2013 }
2014
2015 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
2016
2017 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2018 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
2019
2020 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2021 "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n"
2022 "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n"
2023 "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus,
2024 pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus),
2025 le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode,
2026 termination_count));
2027
2028 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
2029 pScsiTmReply->ResponseCode)
2030 mptscsih_taskmgmt_response_code(ioc,
2031 pScsiTmReply->ResponseCode);
2032
2033 if (iocstatus == MPI_IOCSTATUS_SUCCESS) {
2034 retval = 0;
2035 goto out;
2036 }
2037
2038 retval = FAILED;
2039 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
2040 if (termination_count == 1)
2041 retval = 0;
2042 goto out;
2043 }
2044
2045 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
2046 iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
2047 retval = 0;
2048
2049 out:
2050 return retval;
2051}
2052
2053/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2054void
2055mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2056{
2057 char *desc;
2058
2059 switch (response_code) {
2060 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2061 desc = "The task completed.";
2062 break;
2063 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2064 desc = "The IOC received an invalid frame status.";
2065 break;
2066 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2067 desc = "The task type is not supported.";
2068 break;
2069 case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2070 desc = "The requested task failed.";
2071 break;
2072 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2073 desc = "The task completed successfully.";
2074 break;
2075 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2076 desc = "The LUN request is invalid.";
2077 break;
2078 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2079 desc = "The task is in the IOC queue and has not been sent to target.";
2080 break;
2081 default:
2082 desc = "unknown";
2083 break;
2084 }
2085 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2086 ioc->name, response_code, desc);
2087}
2088EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
2089
2090/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2091/**
2092 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2093 * @ioc: Pointer to MPT_ADAPTER structure
2094 * @mf: Pointer to SCSI task mgmt request frame
2095 * @mr: Pointer to SCSI task mgmt reply frame
2096 *
2097 * This routine is called from mptbase.c::mpt_interrupt() at the completion
2098 * of any SCSI task management request.
2099 * This routine is registered with the MPT (base) driver at driver
2100 * load/init time via the mpt_register() API call.
2101 *
2102 * Returns 1 indicating alloc'd request frame ptr should be freed.
2103 **/
2104int
2105mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf,
2106 MPT_FRAME_HDR *mr)
2107{
2108 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2109 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr));
2110
2111 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2112
2113 if (!mr)
2114 goto out;
2115
2116 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2117 memcpy(ioc->taskmgmt_cmds.reply, mr,
2118 min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
2119 out:
2120 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
2121 mpt_clear_taskmgmt_in_progress_flag(ioc);
2122 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2123 complete(&ioc->taskmgmt_cmds.done);
2124 if (ioc->bus_type == SAS)
2125 ioc->schedule_target_reset(ioc);
2126 return 1;
2127 }
2128 return 0;
2129}
2130
2131/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2132/*
2133 * This is anyones guess quite frankly.
2134 */
2135int
2136mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2137 sector_t capacity, int geom[])
2138{
2139 int heads;
2140 int sectors;
2141 sector_t cylinders;
2142 ulong dummy;
2143
2144 heads = 64;
2145 sectors = 32;
2146
2147 dummy = heads * sectors;
2148 cylinders = capacity;
2149 sector_div(cylinders,dummy);
2150
2151 /*
2152 * Handle extended translation size for logical drives
2153 * > 1Gb
2154 */
2155 if ((ulong)capacity >= 0x200000) {
2156 heads = 255;
2157 sectors = 63;
2158 dummy = heads * sectors;
2159 cylinders = capacity;
2160 sector_div(cylinders,dummy);
2161 }
2162
2163 /* return result */
2164 geom[0] = heads;
2165 geom[1] = sectors;
2166 geom[2] = cylinders;
2167
2168 return 0;
2169}
2170
2171/* Search IOC page 3 to determine if this is hidden physical disk
2172 *
2173 */
2174int
2175mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2176{
2177 struct inactive_raid_component_info *component_info;
2178 int i, j;
2179 RaidPhysDiskPage1_t *phys_disk;
2180 int rc = 0;
2181 int num_paths;
2182
2183 if (!ioc->raid_data.pIocPg3)
2184 goto out;
2185 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2186 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2187 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2188 rc = 1;
2189 goto out;
2190 }
2191 }
2192
2193 if (ioc->bus_type != SAS)
2194 goto out;
2195
2196 /*
2197 * Check if dual path
2198 */
2199 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2200 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2201 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2202 if (num_paths < 2)
2203 continue;
2204 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2205 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2206 if (!phys_disk)
2207 continue;
2208 if ((mpt_raid_phys_disk_pg1(ioc,
2209 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2210 phys_disk))) {
2211 kfree(phys_disk);
2212 continue;
2213 }
2214 for (j = 0; j < num_paths; j++) {
2215 if ((phys_disk->Path[j].Flags &
2216 MPI_RAID_PHYSDISK1_FLAG_INVALID))
2217 continue;
2218 if ((phys_disk->Path[j].Flags &
2219 MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2220 continue;
2221 if ((id == phys_disk->Path[j].PhysDiskID) &&
2222 (channel == phys_disk->Path[j].PhysDiskBus)) {
2223 rc = 1;
2224 kfree(phys_disk);
2225 goto out;
2226 }
2227 }
2228 kfree(phys_disk);
2229 }
2230
2231
2232 /*
2233 * Check inactive list for matching phys disks
2234 */
2235 if (list_empty(&ioc->raid_data.inactive_list))
2236 goto out;
2237
2238 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2239 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2240 list) {
2241 if ((component_info->d.PhysDiskID == id) &&
2242 (component_info->d.PhysDiskBus == channel))
2243 rc = 1;
2244 }
2245 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2246
2247 out:
2248 return rc;
2249}
2250EXPORT_SYMBOL(mptscsih_is_phys_disk);
2251
2252u8
2253mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2254{
2255 struct inactive_raid_component_info *component_info;
2256 int i, j;
2257 RaidPhysDiskPage1_t *phys_disk;
2258 int rc = -ENXIO;
2259 int num_paths;
2260
2261 if (!ioc->raid_data.pIocPg3)
2262 goto out;
2263 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2264 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2265 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2266 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2267 goto out;
2268 }
2269 }
2270
2271 if (ioc->bus_type != SAS)
2272 goto out;
2273
2274 /*
2275 * Check if dual path
2276 */
2277 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2278 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2279 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2280 if (num_paths < 2)
2281 continue;
2282 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2283 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2284 if (!phys_disk)
2285 continue;
2286 if ((mpt_raid_phys_disk_pg1(ioc,
2287 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2288 phys_disk))) {
2289 kfree(phys_disk);
2290 continue;
2291 }
2292 for (j = 0; j < num_paths; j++) {
2293 if ((phys_disk->Path[j].Flags &
2294 MPI_RAID_PHYSDISK1_FLAG_INVALID))
2295 continue;
2296 if ((phys_disk->Path[j].Flags &
2297 MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2298 continue;
2299 if ((id == phys_disk->Path[j].PhysDiskID) &&
2300 (channel == phys_disk->Path[j].PhysDiskBus)) {
2301 rc = phys_disk->PhysDiskNum;
2302 kfree(phys_disk);
2303 goto out;
2304 }
2305 }
2306 kfree(phys_disk);
2307 }
2308
2309 /*
2310 * Check inactive list for matching phys disks
2311 */
2312 if (list_empty(&ioc->raid_data.inactive_list))
2313 goto out;
2314
2315 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2316 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2317 list) {
2318 if ((component_info->d.PhysDiskID == id) &&
2319 (component_info->d.PhysDiskBus == channel))
2320 rc = component_info->d.PhysDiskNum;
2321 }
2322 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2323
2324 out:
2325 return rc;
2326}
2327EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2328
2329/*
2330 * OS entry point to allow for host driver to free allocated memory
2331 * Called if no device present or device being unloaded
2332 */
2333void
2334mptscsih_slave_destroy(struct scsi_device *sdev)
2335{
2336 struct Scsi_Host *host = sdev->host;
2337 MPT_SCSI_HOST *hd = shost_priv(host);
2338 VirtTarget *vtarget;
2339 VirtDevice *vdevice;
2340 struct scsi_target *starget;
2341
2342 starget = scsi_target(sdev);
2343 vtarget = starget->hostdata;
2344 vdevice = sdev->hostdata;
2345 if (!vdevice)
2346 return;
2347
2348 mptscsih_search_running_cmds(hd, vdevice);
2349 vtarget->num_luns--;
2350 mptscsih_synchronize_cache(hd, vdevice);
2351 kfree(vdevice);
2352 sdev->hostdata = NULL;
2353}
2354
2355/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2356/*
2357 * mptscsih_change_queue_depth - This function will set a devices queue depth
2358 * @sdev: per scsi_device pointer
2359 * @qdepth: requested queue depth
2360 *
2361 * Adding support for new 'change_queue_depth' api.
2362*/
2363int
2364mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
2365{
2366 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
2367 VirtTarget *vtarget;
2368 struct scsi_target *starget;
2369 int max_depth;
2370 MPT_ADAPTER *ioc = hd->ioc;
2371
2372 starget = scsi_target(sdev);
2373 vtarget = starget->hostdata;
2374
2375 if (ioc->bus_type == SPI) {
2376 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2377 max_depth = 1;
2378 else if (sdev->type == TYPE_DISK &&
2379 vtarget->minSyncFactor <= MPT_ULTRA160)
2380 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2381 else
2382 max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2383 } else
2384 max_depth = ioc->sh->can_queue;
2385
2386 if (!sdev->tagged_supported)
2387 max_depth = 1;
2388
2389 if (qdepth > max_depth)
2390 qdepth = max_depth;
2391
2392 return scsi_change_queue_depth(sdev, qdepth);
2393}
2394
2395/*
2396 * OS entry point to adjust the queue_depths on a per-device basis.
2397 * Called once per device the bus scan. Use it to force the queue_depth
2398 * member to 1 if a device does not support Q tags.
2399 * Return non-zero if fails.
2400 */
2401int
2402mptscsih_slave_configure(struct scsi_device *sdev)
2403{
2404 struct Scsi_Host *sh = sdev->host;
2405 VirtTarget *vtarget;
2406 VirtDevice *vdevice;
2407 struct scsi_target *starget;
2408 MPT_SCSI_HOST *hd = shost_priv(sh);
2409 MPT_ADAPTER *ioc = hd->ioc;
2410
2411 starget = scsi_target(sdev);
2412 vtarget = starget->hostdata;
2413 vdevice = sdev->hostdata;
2414
2415 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2416 "device @ %p, channel=%d, id=%d, lun=%llu\n",
2417 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2418 if (ioc->bus_type == SPI)
2419 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2420 "sdtr %d wdtr %d ppr %d inq length=%d\n",
2421 ioc->name, sdev->sdtr, sdev->wdtr,
2422 sdev->ppr, sdev->inquiry_len));
2423
2424 vdevice->configured_lun = 1;
2425
2426 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2427 "Queue depth=%d, tflags=%x\n",
2428 ioc->name, sdev->queue_depth, vtarget->tflags));
2429
2430 if (ioc->bus_type == SPI)
2431 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2432 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2433 ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2434 vtarget->minSyncFactor));
2435
2436 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
2437 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2438 "tagged %d, simple %d\n",
2439 ioc->name,sdev->tagged_supported, sdev->simple_tags));
2440
2441 return 0;
2442}
2443
2444/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2445/*
2446 * Private routines...
2447 */
2448
2449/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2450/* Utility function to copy sense data from the scsi_cmnd buffer
2451 * to the FC and SCSI target structures.
2452 *
2453 */
2454static void
2455mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2456{
2457 VirtDevice *vdevice;
2458 SCSIIORequest_t *pReq;
2459 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount);
2460 MPT_ADAPTER *ioc = hd->ioc;
2461
2462 /* Get target structure
2463 */
2464 pReq = (SCSIIORequest_t *) mf;
2465 vdevice = sc->device->hostdata;
2466
2467 if (sense_count) {
2468 u8 *sense_data;
2469 int req_index;
2470
2471 /* Copy the sense received into the scsi command block. */
2472 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2473 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2474 memcpy(sc->sense_buffer, sense_data, MPT_SENSE_BUFFER_ALLOC);
2475
2476 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2477 */
2478 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2479 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2480 int idx;
2481
2482 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2483 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2484 ioc->events[idx].eventContext = ioc->eventContext;
2485
2486 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2487 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2488 (sc->device->channel << 8) | sc->device->id;
2489
2490 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2491
2492 ioc->eventContext++;
2493 if (ioc->pcidev->vendor ==
2494 PCI_VENDOR_ID_IBM) {
2495 mptscsih_issue_sep_command(ioc,
2496 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2497 vdevice->vtarget->tflags |=
2498 MPT_TARGET_FLAGS_LED_ON;
2499 }
2500 }
2501 }
2502 } else {
2503 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2504 ioc->name));
2505 }
2506}
2507
2508/**
2509 * mptscsih_get_scsi_lookup - retrieves scmd entry
2510 * @ioc: Pointer to MPT_ADAPTER structure
2511 * @i: index into the array
2512 *
2513 * Returns the scsi_cmd pointer
2514 */
2515struct scsi_cmnd *
2516mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2517{
2518 unsigned long flags;
2519 struct scsi_cmnd *scmd;
2520
2521 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2522 scmd = ioc->ScsiLookup[i];
2523 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2524
2525 return scmd;
2526}
2527EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
2528
2529/**
2530 * mptscsih_getclear_scsi_lookup - retrieves and clears scmd entry from ScsiLookup[] array list
2531 * @ioc: Pointer to MPT_ADAPTER structure
2532 * @i: index into the array
2533 *
2534 * Returns the scsi_cmd pointer
2535 *
2536 **/
2537static struct scsi_cmnd *
2538mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2539{
2540 unsigned long flags;
2541 struct scsi_cmnd *scmd;
2542
2543 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2544 scmd = ioc->ScsiLookup[i];
2545 ioc->ScsiLookup[i] = NULL;
2546 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2547
2548 return scmd;
2549}
2550
2551/**
2552 * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list
2553 *
2554 * @ioc: Pointer to MPT_ADAPTER structure
2555 * @i: index into the array
2556 * @scmd: scsi_cmnd pointer
2557 *
2558 **/
2559static void
2560mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2561{
2562 unsigned long flags;
2563
2564 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2565 ioc->ScsiLookup[i] = scmd;
2566 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2567}
2568
2569/**
2570 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2571 * @ioc: Pointer to MPT_ADAPTER structure
2572 * @sc: scsi_cmnd pointer
2573 */
2574static int
2575SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2576{
2577 unsigned long flags;
2578 int i, index=-1;
2579
2580 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2581 for (i = 0; i < ioc->req_depth; i++) {
2582 if (ioc->ScsiLookup[i] == sc) {
2583 index = i;
2584 goto out;
2585 }
2586 }
2587
2588 out:
2589 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2590 return index;
2591}
2592
2593/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2594int
2595mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2596{
2597 MPT_SCSI_HOST *hd;
2598
2599 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2600 return 0;
2601
2602 hd = shost_priv(ioc->sh);
2603 switch (reset_phase) {
2604 case MPT_IOC_SETUP_RESET:
2605 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2606 "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
2607 break;
2608 case MPT_IOC_PRE_RESET:
2609 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2610 "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
2611 mptscsih_flush_running_cmds(hd);
2612 break;
2613 case MPT_IOC_POST_RESET:
2614 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2615 "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
2616 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) {
2617 ioc->internal_cmds.status |=
2618 MPT_MGMT_STATUS_DID_IOCRESET;
2619 complete(&ioc->internal_cmds.done);
2620 }
2621 break;
2622 default:
2623 break;
2624 }
2625 return 1; /* currently means nothing really */
2626}
2627
2628/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2629int
2630mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2631{
2632 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2633
2634 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2635 "MPT event (=%02Xh) routed to SCSI host driver!\n",
2636 ioc->name, event));
2637
2638 if ((event == MPI_EVENT_IOC_BUS_RESET ||
2639 event == MPI_EVENT_EXT_BUS_RESET) &&
2640 (ioc->bus_type == SPI) && (ioc->soft_resets < -1))
2641 ioc->soft_resets++;
2642
2643 return 1; /* currently means nothing really */
2644}
2645
2646/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2647/*
2648 * Bus Scan and Domain Validation functionality ...
2649 */
2650
2651/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2652/*
2653 * mptscsih_scandv_complete - Scan and DV callback routine registered
2654 * to Fustion MPT (base) driver.
2655 *
2656 * @ioc: Pointer to MPT_ADAPTER structure
2657 * @mf: Pointer to original MPT request frame
2658 * @mr: Pointer to MPT reply frame (NULL if TurboReply)
2659 *
2660 * This routine is called from mpt.c::mpt_interrupt() at the completion
2661 * of any SCSI IO request.
2662 * This routine is registered with the Fusion MPT (base) driver at driver
2663 * load/init time via the mpt_register() API call.
2664 *
2665 * Returns 1 indicating alloc'd request frame ptr should be freed.
2666 *
2667 * Remark: Sets a completion code and (possibly) saves sense data
2668 * in the IOC member localReply structure.
2669 * Used ONLY for DV and other internal commands.
2670 */
2671int
2672mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2673 MPT_FRAME_HDR *reply)
2674{
2675 SCSIIORequest_t *pReq;
2676 SCSIIOReply_t *pReply;
2677 u8 cmd;
2678 u16 req_idx;
2679 u8 *sense_data;
2680 int sz;
2681
2682 ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2683 ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD;
2684 if (!reply)
2685 goto out;
2686
2687 pReply = (SCSIIOReply_t *) reply;
2688 pReq = (SCSIIORequest_t *) req;
2689 ioc->internal_cmds.completion_code =
2690 mptscsih_get_completion_code(ioc, req, reply);
2691 ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2692 memcpy(ioc->internal_cmds.reply, reply,
2693 min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength));
2694 cmd = reply->u.hdr.Function;
2695 if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
2696 (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) &&
2697 (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
2698 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
2699 sense_data = ((u8 *)ioc->sense_buf_pool +
2700 (req_idx * MPT_SENSE_BUFFER_ALLOC));
2701 sz = min_t(int, pReq->SenseBufferLength,
2702 MPT_SENSE_BUFFER_ALLOC);
2703 memcpy(ioc->internal_cmds.sense, sense_data, sz);
2704 }
2705 out:
2706 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING))
2707 return 0;
2708 ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2709 complete(&ioc->internal_cmds.done);
2710 return 1;
2711}
2712
2713
2714/**
2715 * mptscsih_get_completion_code - get completion code from MPT request
2716 * @ioc: Pointer to MPT_ADAPTER structure
2717 * @req: Pointer to original MPT request frame
2718 * @reply: Pointer to MPT reply frame (NULL if TurboReply)
2719 *
2720 **/
2721static int
2722mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2723 MPT_FRAME_HDR *reply)
2724{
2725 SCSIIOReply_t *pReply;
2726 MpiRaidActionReply_t *pr;
2727 u8 scsi_status;
2728 u16 status;
2729 int completion_code;
2730
2731 pReply = (SCSIIOReply_t *)reply;
2732 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2733 scsi_status = pReply->SCSIStatus;
2734
2735 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2736 "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh,"
2737 "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState,
2738 scsi_status, le32_to_cpu(pReply->IOCLogInfo)));
2739
2740 switch (status) {
2741
2742 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
2743 completion_code = MPT_SCANDV_SELECTION_TIMEOUT;
2744 break;
2745
2746 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
2747 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
2748 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
2749 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
2750 completion_code = MPT_SCANDV_DID_RESET;
2751 break;
2752
2753 case MPI_IOCSTATUS_BUSY:
2754 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
2755 completion_code = MPT_SCANDV_BUSY;
2756 break;
2757
2758 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
2759 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
2760 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
2761 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2762 completion_code = MPT_SCANDV_GOOD;
2763 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2764 pr = (MpiRaidActionReply_t *)reply;
2765 if (le16_to_cpu(pr->ActionStatus) ==
2766 MPI_RAID_ACTION_ASTATUS_SUCCESS)
2767 completion_code = MPT_SCANDV_GOOD;
2768 else
2769 completion_code = MPT_SCANDV_SOME_ERROR;
2770 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)
2771 completion_code = MPT_SCANDV_SENSE;
2772 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2773 if (req->u.scsireq.CDB[0] == INQUIRY)
2774 completion_code = MPT_SCANDV_ISSUE_SENSE;
2775 else
2776 completion_code = MPT_SCANDV_DID_RESET;
2777 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2778 completion_code = MPT_SCANDV_DID_RESET;
2779 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2780 completion_code = MPT_SCANDV_DID_RESET;
2781 else if (scsi_status == MPI_SCSI_STATUS_BUSY)
2782 completion_code = MPT_SCANDV_BUSY;
2783 else
2784 completion_code = MPT_SCANDV_GOOD;
2785 break;
2786
2787 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
2788 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2789 completion_code = MPT_SCANDV_DID_RESET;
2790 else
2791 completion_code = MPT_SCANDV_SOME_ERROR;
2792 break;
2793 default:
2794 completion_code = MPT_SCANDV_SOME_ERROR;
2795 break;
2796
2797 } /* switch(status) */
2798
2799 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2800 " completionCode set to %08xh\n", ioc->name, completion_code));
2801 return completion_code;
2802}
2803
2804/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2805/**
2806 * mptscsih_do_cmd - Do internal command.
2807 * @hd: MPT_SCSI_HOST pointer
2808 * @io: INTERNAL_CMD pointer.
2809 *
2810 * Issue the specified internally generated command and do command
2811 * specific cleanup. For bus scan / DV only.
2812 * NOTES: If command is Inquiry and status is good,
2813 * initialize a target structure, save the data
2814 *
2815 * Remark: Single threaded access only.
2816 *
2817 * Return:
2818 * < 0 if an illegal command or no resources
2819 *
2820 * 0 if good
2821 *
2822 * > 0 if command complete but some type of completion error.
2823 */
2824static int
2825mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2826{
2827 MPT_FRAME_HDR *mf;
2828 SCSIIORequest_t *pScsiReq;
2829 int my_idx, ii, dir;
2830 int timeout;
2831 char cmdLen;
2832 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2833 u8 cmd = io->cmd;
2834 MPT_ADAPTER *ioc = hd->ioc;
2835 int ret = 0;
2836 unsigned long timeleft;
2837 unsigned long flags;
2838
2839 /* don't send internal command during diag reset */
2840 spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
2841 if (ioc->ioc_reset_in_progress) {
2842 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2843 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2844 "%s: busy with host reset\n", ioc->name, __func__));
2845 return MPT_SCANDV_BUSY;
2846 }
2847 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2848
2849 mutex_lock(&ioc->internal_cmds.mutex);
2850
2851 /* Set command specific information
2852 */
2853 switch (cmd) {
2854 case INQUIRY:
2855 cmdLen = 6;
2856 dir = MPI_SCSIIO_CONTROL_READ;
2857 CDB[0] = cmd;
2858 CDB[4] = io->size;
2859 timeout = 10;
2860 break;
2861
2862 case TEST_UNIT_READY:
2863 cmdLen = 6;
2864 dir = MPI_SCSIIO_CONTROL_READ;
2865 timeout = 10;
2866 break;
2867
2868 case START_STOP:
2869 cmdLen = 6;
2870 dir = MPI_SCSIIO_CONTROL_READ;
2871 CDB[0] = cmd;
2872 CDB[4] = 1; /*Spin up the disk */
2873 timeout = 15;
2874 break;
2875
2876 case REQUEST_SENSE:
2877 cmdLen = 6;
2878 CDB[0] = cmd;
2879 CDB[4] = io->size;
2880 dir = MPI_SCSIIO_CONTROL_READ;
2881 timeout = 10;
2882 break;
2883
2884 case READ_BUFFER:
2885 cmdLen = 10;
2886 dir = MPI_SCSIIO_CONTROL_READ;
2887 CDB[0] = cmd;
2888 if (io->flags & MPT_ICFLAG_ECHO) {
2889 CDB[1] = 0x0A;
2890 } else {
2891 CDB[1] = 0x02;
2892 }
2893
2894 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2895 CDB[1] |= 0x01;
2896 }
2897 CDB[6] = (io->size >> 16) & 0xFF;
2898 CDB[7] = (io->size >> 8) & 0xFF;
2899 CDB[8] = io->size & 0xFF;
2900 timeout = 10;
2901 break;
2902
2903 case WRITE_BUFFER:
2904 cmdLen = 10;
2905 dir = MPI_SCSIIO_CONTROL_WRITE;
2906 CDB[0] = cmd;
2907 if (io->flags & MPT_ICFLAG_ECHO) {
2908 CDB[1] = 0x0A;
2909 } else {
2910 CDB[1] = 0x02;
2911 }
2912 CDB[6] = (io->size >> 16) & 0xFF;
2913 CDB[7] = (io->size >> 8) & 0xFF;
2914 CDB[8] = io->size & 0xFF;
2915 timeout = 10;
2916 break;
2917
2918 case RESERVE:
2919 cmdLen = 6;
2920 dir = MPI_SCSIIO_CONTROL_READ;
2921 CDB[0] = cmd;
2922 timeout = 10;
2923 break;
2924
2925 case RELEASE:
2926 cmdLen = 6;
2927 dir = MPI_SCSIIO_CONTROL_READ;
2928 CDB[0] = cmd;
2929 timeout = 10;
2930 break;
2931
2932 case SYNCHRONIZE_CACHE:
2933 cmdLen = 10;
2934 dir = MPI_SCSIIO_CONTROL_READ;
2935 CDB[0] = cmd;
2936// CDB[1] = 0x02; /* set immediate bit */
2937 timeout = 10;
2938 break;
2939
2940 default:
2941 /* Error Case */
2942 ret = -EFAULT;
2943 goto out;
2944 }
2945
2946 /* Get and Populate a free Frame
2947 * MsgContext set in mpt_get_msg_frame call
2948 */
2949 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
2950 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n",
2951 ioc->name, __func__));
2952 ret = MPT_SCANDV_BUSY;
2953 goto out;
2954 }
2955
2956 pScsiReq = (SCSIIORequest_t *) mf;
2957
2958 /* Get the request index */
2959 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2960 ADD_INDEX_LOG(my_idx); /* for debug */
2961
2962 if (io->flags & MPT_ICFLAG_PHYS_DISK) {
2963 pScsiReq->TargetID = io->physDiskNum;
2964 pScsiReq->Bus = 0;
2965 pScsiReq->ChainOffset = 0;
2966 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2967 } else {
2968 pScsiReq->TargetID = io->id;
2969 pScsiReq->Bus = io->channel;
2970 pScsiReq->ChainOffset = 0;
2971 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2972 }
2973
2974 pScsiReq->CDBLength = cmdLen;
2975 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
2976
2977 pScsiReq->Reserved = 0;
2978
2979 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
2980 /* MsgContext set in mpt_get_msg_fram call */
2981
2982 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
2983
2984 if (io->flags & MPT_ICFLAG_TAGGED_CMD)
2985 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
2986 else
2987 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2988
2989 if (cmd == REQUEST_SENSE) {
2990 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2991 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2992 "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd));
2993 }
2994
2995 for (ii = 0; ii < 16; ii++)
2996 pScsiReq->CDB[ii] = CDB[ii];
2997
2998 pScsiReq->DataLength = cpu_to_le32(io->size);
2999 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
3000 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
3001
3002 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
3003 "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%llu\n",
3004 ioc->name, __func__, cmd, io->channel, io->id, io->lun));
3005
3006 if (dir == MPI_SCSIIO_CONTROL_READ)
3007 ioc->add_sge((char *) &pScsiReq->SGL,
3008 MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma);
3009 else
3010 ioc->add_sge((char *) &pScsiReq->SGL,
3011 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma);
3012
3013 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
3014 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
3015 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done,
3016 timeout*HZ);
3017 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
3018 ret = MPT_SCANDV_DID_RESET;
3019 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
3020 "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__,
3021 cmd));
3022 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
3023 mpt_free_msg_frame(ioc, mf);
3024 goto out;
3025 }
3026 if (!timeleft) {
3027 printk(MYIOC_s_WARN_FMT
3028 "Issuing Reset from %s!! doorbell=0x%08xh"
3029 " cmd=0x%02x\n",
3030 ioc->name, __func__, mpt_GetIocState(ioc, 0),
3031 cmd);
3032 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
3033 mpt_free_msg_frame(ioc, mf);
3034 }
3035 goto out;
3036 }
3037
3038 ret = ioc->internal_cmds.completion_code;
3039 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n",
3040 ioc->name, __func__, ret));
3041
3042 out:
3043 CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
3044 mutex_unlock(&ioc->internal_cmds.mutex);
3045 return ret;
3046}
3047
3048/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3049/**
3050 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3051 * @hd: Pointer to a SCSI HOST structure
3052 * @vdevice: virtual target device
3053 *
3054 * Uses the ISR, but with special processing.
3055 * MUST be single-threaded.
3056 *
3057 */
3058static void
3059mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3060{
3061 INTERNAL_CMD iocmd;
3062
3063 /* Ignore hidden raid components, this is handled when the command
3064 * is sent to the volume
3065 */
3066 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3067 return;
3068
3069 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3070 !vdevice->configured_lun)
3071 return;
3072
3073 /* Following parameters will not change
3074 * in this routine.
3075 */
3076 iocmd.cmd = SYNCHRONIZE_CACHE;
3077 iocmd.flags = 0;
3078 iocmd.physDiskNum = -1;
3079 iocmd.data = NULL;
3080 iocmd.data_dma = -1;
3081 iocmd.size = 0;
3082 iocmd.rsvd = iocmd.rsvd2 = 0;
3083 iocmd.channel = vdevice->vtarget->channel;
3084 iocmd.id = vdevice->vtarget->id;
3085 iocmd.lun = vdevice->lun;
3086
3087 mptscsih_do_cmd(hd, &iocmd);
3088}
3089
3090static ssize_t
3091mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3092 char *buf)
3093{
3094 struct Scsi_Host *host = class_to_shost(dev);
3095 MPT_SCSI_HOST *hd = shost_priv(host);
3096 MPT_ADAPTER *ioc = hd->ioc;
3097
3098 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3099 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3100 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3101 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3102 ioc->facts.FWVersion.Word & 0x000000FF);
3103}
3104static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3105
3106static ssize_t
3107mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3108 char *buf)
3109{
3110 struct Scsi_Host *host = class_to_shost(dev);
3111 MPT_SCSI_HOST *hd = shost_priv(host);
3112 MPT_ADAPTER *ioc = hd->ioc;
3113
3114 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3115 (ioc->biosVersion & 0xFF000000) >> 24,
3116 (ioc->biosVersion & 0x00FF0000) >> 16,
3117 (ioc->biosVersion & 0x0000FF00) >> 8,
3118 ioc->biosVersion & 0x000000FF);
3119}
3120static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3121
3122static ssize_t
3123mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3124 char *buf)
3125{
3126 struct Scsi_Host *host = class_to_shost(dev);
3127 MPT_SCSI_HOST *hd = shost_priv(host);
3128 MPT_ADAPTER *ioc = hd->ioc;
3129
3130 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3131}
3132static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3133
3134static ssize_t
3135mptscsih_version_product_show(struct device *dev,
3136 struct device_attribute *attr,
3137char *buf)
3138{
3139 struct Scsi_Host *host = class_to_shost(dev);
3140 MPT_SCSI_HOST *hd = shost_priv(host);
3141 MPT_ADAPTER *ioc = hd->ioc;
3142
3143 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3144}
3145static DEVICE_ATTR(version_product, S_IRUGO,
3146 mptscsih_version_product_show, NULL);
3147
3148static ssize_t
3149mptscsih_version_nvdata_persistent_show(struct device *dev,
3150 struct device_attribute *attr,
3151 char *buf)
3152{
3153 struct Scsi_Host *host = class_to_shost(dev);
3154 MPT_SCSI_HOST *hd = shost_priv(host);
3155 MPT_ADAPTER *ioc = hd->ioc;
3156
3157 return snprintf(buf, PAGE_SIZE, "%02xh\n",
3158 ioc->nvdata_version_persistent);
3159}
3160static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3161 mptscsih_version_nvdata_persistent_show, NULL);
3162
3163static ssize_t
3164mptscsih_version_nvdata_default_show(struct device *dev,
3165 struct device_attribute *attr, char *buf)
3166{
3167 struct Scsi_Host *host = class_to_shost(dev);
3168 MPT_SCSI_HOST *hd = shost_priv(host);
3169 MPT_ADAPTER *ioc = hd->ioc;
3170
3171 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3172}
3173static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3174 mptscsih_version_nvdata_default_show, NULL);
3175
3176static ssize_t
3177mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3178 char *buf)
3179{
3180 struct Scsi_Host *host = class_to_shost(dev);
3181 MPT_SCSI_HOST *hd = shost_priv(host);
3182 MPT_ADAPTER *ioc = hd->ioc;
3183
3184 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3185}
3186static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3187
3188static ssize_t
3189mptscsih_board_assembly_show(struct device *dev,
3190 struct device_attribute *attr, char *buf)
3191{
3192 struct Scsi_Host *host = class_to_shost(dev);
3193 MPT_SCSI_HOST *hd = shost_priv(host);
3194 MPT_ADAPTER *ioc = hd->ioc;
3195
3196 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3197}
3198static DEVICE_ATTR(board_assembly, S_IRUGO,
3199 mptscsih_board_assembly_show, NULL);
3200
3201static ssize_t
3202mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3203 char *buf)
3204{
3205 struct Scsi_Host *host = class_to_shost(dev);
3206 MPT_SCSI_HOST *hd = shost_priv(host);
3207 MPT_ADAPTER *ioc = hd->ioc;
3208
3209 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3210}
3211static DEVICE_ATTR(board_tracer, S_IRUGO,
3212 mptscsih_board_tracer_show, NULL);
3213
3214static ssize_t
3215mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3216 char *buf)
3217{
3218 struct Scsi_Host *host = class_to_shost(dev);
3219 MPT_SCSI_HOST *hd = shost_priv(host);
3220 MPT_ADAPTER *ioc = hd->ioc;
3221
3222 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3223}
3224static DEVICE_ATTR(io_delay, S_IRUGO,
3225 mptscsih_io_delay_show, NULL);
3226
3227static ssize_t
3228mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3229 char *buf)
3230{
3231 struct Scsi_Host *host = class_to_shost(dev);
3232 MPT_SCSI_HOST *hd = shost_priv(host);
3233 MPT_ADAPTER *ioc = hd->ioc;
3234
3235 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3236}
3237static DEVICE_ATTR(device_delay, S_IRUGO,
3238 mptscsih_device_delay_show, NULL);
3239
3240static ssize_t
3241mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3242 char *buf)
3243{
3244 struct Scsi_Host *host = class_to_shost(dev);
3245 MPT_SCSI_HOST *hd = shost_priv(host);
3246 MPT_ADAPTER *ioc = hd->ioc;
3247
3248 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3249}
3250static ssize_t
3251mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3252 const char *buf, size_t count)
3253{
3254 struct Scsi_Host *host = class_to_shost(dev);
3255 MPT_SCSI_HOST *hd = shost_priv(host);
3256 MPT_ADAPTER *ioc = hd->ioc;
3257 int val = 0;
3258
3259 if (sscanf(buf, "%x", &val) != 1)
3260 return -EINVAL;
3261
3262 ioc->debug_level = val;
3263 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3264 ioc->name, ioc->debug_level);
3265 return strlen(buf);
3266}
3267static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3268 mptscsih_debug_level_show, mptscsih_debug_level_store);
3269
3270static struct attribute *mptscsih_host_attrs[] = {
3271 &dev_attr_version_fw.attr,
3272 &dev_attr_version_bios.attr,
3273 &dev_attr_version_mpi.attr,
3274 &dev_attr_version_product.attr,
3275 &dev_attr_version_nvdata_persistent.attr,
3276 &dev_attr_version_nvdata_default.attr,
3277 &dev_attr_board_name.attr,
3278 &dev_attr_board_assembly.attr,
3279 &dev_attr_board_tracer.attr,
3280 &dev_attr_io_delay.attr,
3281 &dev_attr_device_delay.attr,
3282 &dev_attr_debug_level.attr,
3283 NULL,
3284};
3285
3286static const struct attribute_group mptscsih_host_attr_group = {
3287 .attrs = mptscsih_host_attrs
3288};
3289
3290const struct attribute_group *mptscsih_host_attr_groups[] = {
3291 &mptscsih_host_attr_group,
3292 NULL
3293};
3294EXPORT_SYMBOL(mptscsih_host_attr_groups);
3295
3296EXPORT_SYMBOL(mptscsih_remove);
3297EXPORT_SYMBOL(mptscsih_shutdown);
3298#ifdef CONFIG_PM
3299EXPORT_SYMBOL(mptscsih_suspend);
3300EXPORT_SYMBOL(mptscsih_resume);
3301#endif
3302EXPORT_SYMBOL(mptscsih_show_info);
3303EXPORT_SYMBOL(mptscsih_info);
3304EXPORT_SYMBOL(mptscsih_qcmd);
3305EXPORT_SYMBOL(mptscsih_slave_destroy);
3306EXPORT_SYMBOL(mptscsih_slave_configure);
3307EXPORT_SYMBOL(mptscsih_abort);
3308EXPORT_SYMBOL(mptscsih_dev_reset);
3309EXPORT_SYMBOL(mptscsih_target_reset);
3310EXPORT_SYMBOL(mptscsih_bus_reset);
3311EXPORT_SYMBOL(mptscsih_host_reset);
3312EXPORT_SYMBOL(mptscsih_bios_param);
3313EXPORT_SYMBOL(mptscsih_io_done);
3314EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3315EXPORT_SYMBOL(mptscsih_scandv_complete);
3316EXPORT_SYMBOL(mptscsih_event_process);
3317EXPORT_SYMBOL(mptscsih_ioc_reset);
3318EXPORT_SYMBOL(mptscsih_change_queue_depth);
3319
3320/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/