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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 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 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:%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((hd = shost_priv(host)) == NULL)
1180 return;
1181
1182 mptscsih_shutdown(pdev);
1183
1184 sz1=0;
1185
1186 if (ioc->ScsiLookup != NULL) {
1187 sz1 = ioc->req_depth * sizeof(void *);
1188 kfree(ioc->ScsiLookup);
1189 ioc->ScsiLookup = NULL;
1190 }
1191
1192 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1193 "Free'd ScsiLookup (%d) memory\n",
1194 ioc->name, sz1));
1195
1196 kfree(hd->info_kbuf);
1197
1198 /* NULL the Scsi_Host pointer
1199 */
1200 ioc->sh = NULL;
1201
1202 scsi_host_put(host);
1203
1204 mpt_detach(pdev);
1205
1206}
1207
1208/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1209/*
1210 * mptscsih_shutdown - reboot notifier
1211 *
1212 */
1213void
1214mptscsih_shutdown(struct pci_dev *pdev)
1215{
1216}
1217
1218#ifdef CONFIG_PM
1219/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1220/*
1221 * mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1222 *
1223 *
1224 */
1225int
1226mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1227{
1228 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1229
1230 scsi_block_requests(ioc->sh);
1231 flush_scheduled_work();
1232 mptscsih_shutdown(pdev);
1233 return mpt_suspend(pdev,state);
1234}
1235
1236/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1237/*
1238 * mptscsih_resume - Fusion MPT scsi driver resume routine.
1239 *
1240 *
1241 */
1242int
1243mptscsih_resume(struct pci_dev *pdev)
1244{
1245 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1246 int rc;
1247
1248 rc = mpt_resume(pdev);
1249 scsi_unblock_requests(ioc->sh);
1250 return rc;
1251}
1252
1253#endif
1254
1255/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1256/**
1257 * mptscsih_info - Return information about MPT adapter
1258 * @SChost: Pointer to Scsi_Host structure
1259 *
1260 * (linux scsi_host_template.info routine)
1261 *
1262 * Returns pointer to buffer where information was written.
1263 */
1264const char *
1265mptscsih_info(struct Scsi_Host *SChost)
1266{
1267 MPT_SCSI_HOST *h;
1268 int size = 0;
1269
1270 h = shost_priv(SChost);
1271
1272 if (h->info_kbuf == NULL)
1273 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1274 return h->info_kbuf;
1275 h->info_kbuf[0] = '\0';
1276
1277 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1278 h->info_kbuf[size-1] = '\0';
1279
1280 return h->info_kbuf;
1281}
1282
1283int mptscsih_show_info(struct seq_file *m, struct Scsi_Host *host)
1284{
1285 MPT_SCSI_HOST *hd = shost_priv(host);
1286 MPT_ADAPTER *ioc = hd->ioc;
1287
1288 seq_printf(m, "%s: %s, ", ioc->name, ioc->prod_name);
1289 seq_printf(m, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1290 seq_printf(m, "Ports=%d, ", ioc->facts.NumberOfPorts);
1291 seq_printf(m, "MaxQ=%d\n", ioc->req_depth);
1292
1293 return 0;
1294}
1295
1296/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1297#define ADD_INDEX_LOG(req_ent) do { } while(0)
1298
1299/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1300/**
1301 * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1302 * @SCpnt: Pointer to scsi_cmnd structure
1303 *
1304 * (linux scsi_host_template.queuecommand routine)
1305 * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest
1306 * from a linux scsi_cmnd request and send it to the IOC.
1307 *
1308 * Returns 0. (rtn value discarded by linux scsi mid-layer)
1309 */
1310int
1311mptscsih_qcmd(struct scsi_cmnd *SCpnt)
1312{
1313 MPT_SCSI_HOST *hd;
1314 MPT_FRAME_HDR *mf;
1315 SCSIIORequest_t *pScsiReq;
1316 VirtDevice *vdevice = SCpnt->device->hostdata;
1317 u32 datalen;
1318 u32 scsictl;
1319 u32 scsidir;
1320 u32 cmd_len;
1321 int my_idx;
1322 int ii;
1323 MPT_ADAPTER *ioc;
1324
1325 hd = shost_priv(SCpnt->device->host);
1326 ioc = hd->ioc;
1327
1328 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p\n",
1329 ioc->name, SCpnt));
1330
1331 if (ioc->taskmgmt_quiesce_io)
1332 return SCSI_MLQUEUE_HOST_BUSY;
1333
1334 /*
1335 * Put together a MPT SCSI request...
1336 */
1337 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1338 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1339 ioc->name));
1340 return SCSI_MLQUEUE_HOST_BUSY;
1341 }
1342
1343 pScsiReq = (SCSIIORequest_t *) mf;
1344
1345 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1346
1347 ADD_INDEX_LOG(my_idx);
1348
1349 /* TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1350 * Seems we may receive a buffer (datalen>0) even when there
1351 * will be no data transfer! GRRRRR...
1352 */
1353 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1354 datalen = scsi_bufflen(SCpnt);
1355 scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */
1356 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1357 datalen = scsi_bufflen(SCpnt);
1358 scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */
1359 } else {
1360 datalen = 0;
1361 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1362 }
1363
1364 /* Default to untagged. Once a target structure has been allocated,
1365 * use the Inquiry data to determine if device supports tagged.
1366 */
1367 if ((vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES) &&
1368 SCpnt->device->tagged_supported)
1369 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1370 else
1371 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1372
1373
1374 /* Use the above information to set up the message frame
1375 */
1376 pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1377 pScsiReq->Bus = vdevice->vtarget->channel;
1378 pScsiReq->ChainOffset = 0;
1379 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
1380 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1381 else
1382 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1383 pScsiReq->CDBLength = SCpnt->cmd_len;
1384 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1385 pScsiReq->Reserved = 0;
1386 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1387 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1388 pScsiReq->Control = cpu_to_le32(scsictl);
1389
1390 /*
1391 * Write SCSI CDB into the message
1392 */
1393 cmd_len = SCpnt->cmd_len;
1394 for (ii=0; ii < cmd_len; ii++)
1395 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1396
1397 for (ii=cmd_len; ii < 16; ii++)
1398 pScsiReq->CDB[ii] = 0;
1399
1400 /* DataLength */
1401 pScsiReq->DataLength = cpu_to_le32(datalen);
1402
1403 /* SenseBuffer low address */
1404 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1405 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1406
1407 /* Now add the SG list
1408 * Always have a SGE even if null length.
1409 */
1410 if (datalen == 0) {
1411 /* Add a NULL SGE */
1412 ioc->add_sge((char *)&pScsiReq->SGL,
1413 MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1414 (dma_addr_t) -1);
1415 } else {
1416 /* Add a 32 or 64 bit SGE */
1417 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1418 goto fail;
1419 }
1420
1421 SCpnt->host_scribble = (unsigned char *)mf;
1422 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1423
1424 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1425 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1426 ioc->name, SCpnt, mf, my_idx));
1427 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1428 return 0;
1429
1430 fail:
1431 mptscsih_freeChainBuffers(ioc, my_idx);
1432 mpt_free_msg_frame(ioc, mf);
1433 return SCSI_MLQUEUE_HOST_BUSY;
1434}
1435
1436/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1437/*
1438 * mptscsih_freeChainBuffers - Function to free chain buffers associated
1439 * with a SCSI IO request
1440 * @hd: Pointer to the MPT_SCSI_HOST instance
1441 * @req_idx: Index of the SCSI IO request frame.
1442 *
1443 * Called if SG chain buffer allocation fails and mptscsih callbacks.
1444 * No return.
1445 */
1446static void
1447mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1448{
1449 MPT_FRAME_HDR *chain;
1450 unsigned long flags;
1451 int chain_idx;
1452 int next;
1453
1454 /* Get the first chain index and reset
1455 * tracker state.
1456 */
1457 chain_idx = ioc->ReqToChain[req_idx];
1458 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1459
1460 while (chain_idx != MPT_HOST_NO_CHAIN) {
1461
1462 /* Save the next chain buffer index */
1463 next = ioc->ChainToChain[chain_idx];
1464
1465 /* Free this chain buffer and reset
1466 * tracker
1467 */
1468 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1469
1470 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1471 + (chain_idx * ioc->req_sz));
1472
1473 spin_lock_irqsave(&ioc->FreeQlock, flags);
1474 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1475 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1476
1477 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1478 ioc->name, chain_idx));
1479
1480 /* handle next */
1481 chain_idx = next;
1482 }
1483 return;
1484}
1485
1486/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1487/*
1488 * Reset Handling
1489 */
1490
1491/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1492/**
1493 * mptscsih_IssueTaskMgmt - Generic send Task Management function.
1494 * @hd: Pointer to MPT_SCSI_HOST structure
1495 * @type: Task Management type
1496 * @channel: channel number for task management
1497 * @id: Logical Target ID for reset (if appropriate)
1498 * @lun: Logical Unit for reset (if appropriate)
1499 * @ctx2abort: Context for the task to be aborted (if appropriate)
1500 * @timeout: timeout for task management control
1501 *
1502 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1503 * or a non-interrupt thread. In the former, must not call schedule().
1504 *
1505 * Not all fields are meaningfull for all task types.
1506 *
1507 * Returns 0 for SUCCESS, or FAILED.
1508 *
1509 **/
1510int
1511mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, u64 lun,
1512 int ctx2abort, ulong timeout)
1513{
1514 MPT_FRAME_HDR *mf;
1515 SCSITaskMgmt_t *pScsiTm;
1516 int ii;
1517 int retval;
1518 MPT_ADAPTER *ioc = hd->ioc;
1519 unsigned long timeleft;
1520 u8 issue_hard_reset;
1521 u32 ioc_raw_state;
1522 unsigned long time_count;
1523
1524 issue_hard_reset = 0;
1525 ioc_raw_state = mpt_GetIocState(ioc, 0);
1526
1527 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1528 printk(MYIOC_s_WARN_FMT
1529 "TaskMgmt type=%x: IOC Not operational (0x%x)!\n",
1530 ioc->name, type, ioc_raw_state);
1531 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
1532 ioc->name, __func__);
1533 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1534 printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset "
1535 "FAILED!!\n", ioc->name);
1536 return 0;
1537 }
1538
1539 /* DOORBELL ACTIVE check is not required if
1540 * MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported.
1541 */
1542
1543 if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q)
1544 && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) &&
1545 (ioc_raw_state & MPI_DOORBELL_ACTIVE)) {
1546 printk(MYIOC_s_WARN_FMT
1547 "TaskMgmt type=%x: ioc_state: "
1548 "DOORBELL_ACTIVE (0x%x)!\n",
1549 ioc->name, type, ioc_raw_state);
1550 return FAILED;
1551 }
1552
1553 mutex_lock(&ioc->taskmgmt_cmds.mutex);
1554 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
1555 mf = NULL;
1556 retval = FAILED;
1557 goto out;
1558 }
1559
1560 /* Return Fail to calling function if no message frames available.
1561 */
1562 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1563 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1564 "TaskMgmt no msg frames!!\n", ioc->name));
1565 retval = FAILED;
1566 mpt_clear_taskmgmt_in_progress_flag(ioc);
1567 goto out;
1568 }
1569 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
1570 ioc->name, mf));
1571
1572 /* Format the Request
1573 */
1574 pScsiTm = (SCSITaskMgmt_t *) mf;
1575 pScsiTm->TargetID = id;
1576 pScsiTm->Bus = channel;
1577 pScsiTm->ChainOffset = 0;
1578 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1579
1580 pScsiTm->Reserved = 0;
1581 pScsiTm->TaskType = type;
1582 pScsiTm->Reserved1 = 0;
1583 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1584 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1585
1586 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1587
1588 for (ii=0; ii < 7; ii++)
1589 pScsiTm->Reserved2[ii] = 0;
1590
1591 pScsiTm->TaskMsgContext = ctx2abort;
1592
1593 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) "
1594 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort,
1595 type, timeout));
1596
1597 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1598
1599 INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1600 time_count = jiffies;
1601 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1602 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1603 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1604 else {
1605 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1606 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1607 if (retval) {
1608 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1609 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n",
1610 ioc->name, mf, retval));
1611 mpt_free_msg_frame(ioc, mf);
1612 mpt_clear_taskmgmt_in_progress_flag(ioc);
1613 goto out;
1614 }
1615 }
1616
1617 timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
1618 timeout*HZ);
1619 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
1620 retval = FAILED;
1621 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
1622 "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf));
1623 mpt_clear_taskmgmt_in_progress_flag(ioc);
1624 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
1625 goto out;
1626 issue_hard_reset = 1;
1627 goto out;
1628 }
1629
1630 retval = mptscsih_taskmgmt_reply(ioc, type,
1631 (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply);
1632
1633 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1634 "TaskMgmt completed (%d seconds)\n",
1635 ioc->name, jiffies_to_msecs(jiffies - time_count)/1000));
1636
1637 out:
1638
1639 CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1640 if (issue_hard_reset) {
1641 printk(MYIOC_s_WARN_FMT
1642 "Issuing Reset from %s!! doorbell=0x%08x\n",
1643 ioc->name, __func__, mpt_GetIocState(ioc, 0));
1644 retval = (ioc->bus_type == SAS) ?
1645 mpt_HardResetHandler(ioc, CAN_SLEEP) :
1646 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1647 mpt_free_msg_frame(ioc, mf);
1648 }
1649
1650 retval = (retval == 0) ? 0 : FAILED;
1651 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
1652 return retval;
1653}
1654EXPORT_SYMBOL(mptscsih_IssueTaskMgmt);
1655
1656static int
1657mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1658{
1659 switch (ioc->bus_type) {
1660 case FC:
1661 return 40;
1662 case SAS:
1663 return 30;
1664 case SPI:
1665 default:
1666 return 10;
1667 }
1668}
1669
1670/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1671/**
1672 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1673 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1674 *
1675 * (linux scsi_host_template.eh_abort_handler routine)
1676 *
1677 * Returns SUCCESS or FAILED.
1678 **/
1679int
1680mptscsih_abort(struct scsi_cmnd * SCpnt)
1681{
1682 MPT_SCSI_HOST *hd;
1683 MPT_FRAME_HDR *mf;
1684 u32 ctx2abort;
1685 int scpnt_idx;
1686 int retval;
1687 VirtDevice *vdevice;
1688 MPT_ADAPTER *ioc;
1689
1690 /* If we can't locate our host adapter structure, return FAILED status.
1691 */
1692 if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1693 SCpnt->result = DID_RESET << 16;
1694 SCpnt->scsi_done(SCpnt);
1695 printk(KERN_ERR MYNAM ": task abort: "
1696 "can't locate host! (sc=%p)\n", SCpnt);
1697 return FAILED;
1698 }
1699
1700 ioc = hd->ioc;
1701 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1702 ioc->name, SCpnt);
1703 scsi_print_command(SCpnt);
1704
1705 vdevice = SCpnt->device->hostdata;
1706 if (!vdevice || !vdevice->vtarget) {
1707 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1708 "task abort: device has been deleted (sc=%p)\n",
1709 ioc->name, SCpnt));
1710 SCpnt->result = DID_NO_CONNECT << 16;
1711 SCpnt->scsi_done(SCpnt);
1712 retval = SUCCESS;
1713 goto out;
1714 }
1715
1716 /* Task aborts are not supported for hidden raid components.
1717 */
1718 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1719 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1720 "task abort: hidden raid component (sc=%p)\n",
1721 ioc->name, SCpnt));
1722 SCpnt->result = DID_RESET << 16;
1723 retval = FAILED;
1724 goto out;
1725 }
1726
1727 /* Task aborts are not supported for volumes.
1728 */
1729 if (vdevice->vtarget->raidVolume) {
1730 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1731 "task abort: raid volume (sc=%p)\n",
1732 ioc->name, SCpnt));
1733 SCpnt->result = DID_RESET << 16;
1734 retval = FAILED;
1735 goto out;
1736 }
1737
1738 /* Find this command
1739 */
1740 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1741 /* Cmd not found in ScsiLookup.
1742 * Do OS callback.
1743 */
1744 SCpnt->result = DID_RESET << 16;
1745 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1746 "Command not in the active list! (sc=%p)\n", ioc->name,
1747 SCpnt));
1748 retval = SUCCESS;
1749 goto out;
1750 }
1751
1752 if (ioc->timeouts < -1)
1753 ioc->timeouts++;
1754
1755 if (mpt_fwfault_debug)
1756 mpt_halt_firmware(ioc);
1757
1758 /* Most important! Set TaskMsgContext to SCpnt's MsgContext!
1759 * (the IO to be ABORT'd)
1760 *
1761 * NOTE: Since we do not byteswap MsgContext, we do not
1762 * swap it here either. It is an opaque cookie to
1763 * the controller, so it does not matter. -DaveM
1764 */
1765 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1766 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1767 retval = mptscsih_IssueTaskMgmt(hd,
1768 MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1769 vdevice->vtarget->channel,
1770 vdevice->vtarget->id, vdevice->lun,
1771 ctx2abort, mptscsih_get_tm_timeout(ioc));
1772
1773 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) {
1774 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1775 "task abort: command still in active list! (sc=%p)\n",
1776 ioc->name, SCpnt));
1777 retval = FAILED;
1778 } else {
1779 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1780 "task abort: command cleared from active list! (sc=%p)\n",
1781 ioc->name, SCpnt));
1782 retval = SUCCESS;
1783 }
1784
1785 out:
1786 printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n",
1787 ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval,
1788 SCpnt);
1789
1790 return retval;
1791}
1792
1793/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1794/**
1795 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant
1796 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1797 *
1798 * (linux scsi_host_template.eh_dev_reset_handler routine)
1799 *
1800 * Returns SUCCESS or FAILED.
1801 **/
1802int
1803mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1804{
1805 MPT_SCSI_HOST *hd;
1806 int retval;
1807 VirtDevice *vdevice;
1808 MPT_ADAPTER *ioc;
1809
1810 /* If we can't locate our host adapter structure, return FAILED status.
1811 */
1812 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1813 printk(KERN_ERR MYNAM ": target reset: "
1814 "Can't locate host! (sc=%p)\n", SCpnt);
1815 return FAILED;
1816 }
1817
1818 ioc = hd->ioc;
1819 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1820 ioc->name, SCpnt);
1821 scsi_print_command(SCpnt);
1822
1823 vdevice = SCpnt->device->hostdata;
1824 if (!vdevice || !vdevice->vtarget) {
1825 retval = 0;
1826 goto out;
1827 }
1828
1829 /* Target reset to hidden raid component is not supported
1830 */
1831 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1832 retval = FAILED;
1833 goto out;
1834 }
1835
1836 retval = mptscsih_IssueTaskMgmt(hd,
1837 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1838 vdevice->vtarget->channel,
1839 vdevice->vtarget->id, 0, 0,
1840 mptscsih_get_tm_timeout(ioc));
1841
1842 out:
1843 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1844 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1845
1846 if (retval == 0)
1847 return SUCCESS;
1848 else
1849 return FAILED;
1850}
1851
1852
1853/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1854/**
1855 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant
1856 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1857 *
1858 * (linux scsi_host_template.eh_bus_reset_handler routine)
1859 *
1860 * Returns SUCCESS or FAILED.
1861 **/
1862int
1863mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1864{
1865 MPT_SCSI_HOST *hd;
1866 int retval;
1867 VirtDevice *vdevice;
1868 MPT_ADAPTER *ioc;
1869
1870 /* If we can't locate our host adapter structure, return FAILED status.
1871 */
1872 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1873 printk(KERN_ERR MYNAM ": bus reset: "
1874 "Can't locate host! (sc=%p)\n", SCpnt);
1875 return FAILED;
1876 }
1877
1878 ioc = hd->ioc;
1879 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1880 ioc->name, SCpnt);
1881 scsi_print_command(SCpnt);
1882
1883 if (ioc->timeouts < -1)
1884 ioc->timeouts++;
1885
1886 vdevice = SCpnt->device->hostdata;
1887 if (!vdevice || !vdevice->vtarget)
1888 return SUCCESS;
1889 retval = mptscsih_IssueTaskMgmt(hd,
1890 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1891 vdevice->vtarget->channel, 0, 0, 0,
1892 mptscsih_get_tm_timeout(ioc));
1893
1894 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1895 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1896
1897 if (retval == 0)
1898 return SUCCESS;
1899 else
1900 return FAILED;
1901}
1902
1903/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1904/**
1905 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1906 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1907 *
1908 * (linux scsi_host_template.eh_host_reset_handler routine)
1909 *
1910 * Returns SUCCESS or FAILED.
1911 */
1912int
1913mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1914{
1915 MPT_SCSI_HOST * hd;
1916 int status = SUCCESS;
1917 MPT_ADAPTER *ioc;
1918 int retval;
1919
1920 /* If we can't locate the host to reset, then we failed. */
1921 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1922 printk(KERN_ERR MYNAM ": host reset: "
1923 "Can't locate host! (sc=%p)\n", SCpnt);
1924 return FAILED;
1925 }
1926
1927 /* make sure we have no outstanding commands at this stage */
1928 mptscsih_flush_running_cmds(hd);
1929
1930 ioc = hd->ioc;
1931 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
1932 ioc->name, SCpnt);
1933
1934 /* If our attempts to reset the host failed, then return a failed
1935 * status. The host will be taken off line by the SCSI mid-layer.
1936 */
1937 retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1938 if (retval < 0)
1939 status = FAILED;
1940 else
1941 status = SUCCESS;
1942
1943 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
1944 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1945
1946 return status;
1947}
1948
1949static int
1950mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
1951 SCSITaskMgmtReply_t *pScsiTmReply)
1952{
1953 u16 iocstatus;
1954 u32 termination_count;
1955 int retval;
1956
1957 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
1958 retval = FAILED;
1959 goto out;
1960 }
1961
1962 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
1963
1964 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
1965 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
1966
1967 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1968 "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n"
1969 "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n"
1970 "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus,
1971 pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus),
1972 le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode,
1973 termination_count));
1974
1975 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
1976 pScsiTmReply->ResponseCode)
1977 mptscsih_taskmgmt_response_code(ioc,
1978 pScsiTmReply->ResponseCode);
1979
1980 if (iocstatus == MPI_IOCSTATUS_SUCCESS) {
1981 retval = 0;
1982 goto out;
1983 }
1984
1985 retval = FAILED;
1986 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1987 if (termination_count == 1)
1988 retval = 0;
1989 goto out;
1990 }
1991
1992 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
1993 iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
1994 retval = 0;
1995
1996 out:
1997 return retval;
1998}
1999
2000/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2001void
2002mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2003{
2004 char *desc;
2005
2006 switch (response_code) {
2007 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2008 desc = "The task completed.";
2009 break;
2010 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2011 desc = "The IOC received an invalid frame status.";
2012 break;
2013 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2014 desc = "The task type is not supported.";
2015 break;
2016 case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2017 desc = "The requested task failed.";
2018 break;
2019 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2020 desc = "The task completed successfully.";
2021 break;
2022 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2023 desc = "The LUN request is invalid.";
2024 break;
2025 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2026 desc = "The task is in the IOC queue and has not been sent to target.";
2027 break;
2028 default:
2029 desc = "unknown";
2030 break;
2031 }
2032 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2033 ioc->name, response_code, desc);
2034}
2035EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
2036
2037/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2038/**
2039 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2040 * @ioc: Pointer to MPT_ADAPTER structure
2041 * @mf: Pointer to SCSI task mgmt request frame
2042 * @mr: Pointer to SCSI task mgmt reply frame
2043 *
2044 * This routine is called from mptbase.c::mpt_interrupt() at the completion
2045 * of any SCSI task management request.
2046 * This routine is registered with the MPT (base) driver at driver
2047 * load/init time via the mpt_register() API call.
2048 *
2049 * Returns 1 indicating alloc'd request frame ptr should be freed.
2050 **/
2051int
2052mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf,
2053 MPT_FRAME_HDR *mr)
2054{
2055 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2056 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr));
2057
2058 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2059
2060 if (!mr)
2061 goto out;
2062
2063 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2064 memcpy(ioc->taskmgmt_cmds.reply, mr,
2065 min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
2066 out:
2067 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
2068 mpt_clear_taskmgmt_in_progress_flag(ioc);
2069 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2070 complete(&ioc->taskmgmt_cmds.done);
2071 if (ioc->bus_type == SAS)
2072 ioc->schedule_target_reset(ioc);
2073 return 1;
2074 }
2075 return 0;
2076}
2077
2078/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2079/*
2080 * This is anyones guess quite frankly.
2081 */
2082int
2083mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2084 sector_t capacity, int geom[])
2085{
2086 int heads;
2087 int sectors;
2088 sector_t cylinders;
2089 ulong dummy;
2090
2091 heads = 64;
2092 sectors = 32;
2093
2094 dummy = heads * sectors;
2095 cylinders = capacity;
2096 sector_div(cylinders,dummy);
2097
2098 /*
2099 * Handle extended translation size for logical drives
2100 * > 1Gb
2101 */
2102 if ((ulong)capacity >= 0x200000) {
2103 heads = 255;
2104 sectors = 63;
2105 dummy = heads * sectors;
2106 cylinders = capacity;
2107 sector_div(cylinders,dummy);
2108 }
2109
2110 /* return result */
2111 geom[0] = heads;
2112 geom[1] = sectors;
2113 geom[2] = cylinders;
2114
2115 return 0;
2116}
2117
2118/* Search IOC page 3 to determine if this is hidden physical disk
2119 *
2120 */
2121int
2122mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2123{
2124 struct inactive_raid_component_info *component_info;
2125 int i, j;
2126 RaidPhysDiskPage1_t *phys_disk;
2127 int rc = 0;
2128 int num_paths;
2129
2130 if (!ioc->raid_data.pIocPg3)
2131 goto out;
2132 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2133 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2134 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2135 rc = 1;
2136 goto out;
2137 }
2138 }
2139
2140 if (ioc->bus_type != SAS)
2141 goto out;
2142
2143 /*
2144 * Check if dual path
2145 */
2146 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2147 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2148 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2149 if (num_paths < 2)
2150 continue;
2151 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2152 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2153 if (!phys_disk)
2154 continue;
2155 if ((mpt_raid_phys_disk_pg1(ioc,
2156 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2157 phys_disk))) {
2158 kfree(phys_disk);
2159 continue;
2160 }
2161 for (j = 0; j < num_paths; j++) {
2162 if ((phys_disk->Path[j].Flags &
2163 MPI_RAID_PHYSDISK1_FLAG_INVALID))
2164 continue;
2165 if ((phys_disk->Path[j].Flags &
2166 MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2167 continue;
2168 if ((id == phys_disk->Path[j].PhysDiskID) &&
2169 (channel == phys_disk->Path[j].PhysDiskBus)) {
2170 rc = 1;
2171 kfree(phys_disk);
2172 goto out;
2173 }
2174 }
2175 kfree(phys_disk);
2176 }
2177
2178
2179 /*
2180 * Check inactive list for matching phys disks
2181 */
2182 if (list_empty(&ioc->raid_data.inactive_list))
2183 goto out;
2184
2185 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2186 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2187 list) {
2188 if ((component_info->d.PhysDiskID == id) &&
2189 (component_info->d.PhysDiskBus == channel))
2190 rc = 1;
2191 }
2192 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2193
2194 out:
2195 return rc;
2196}
2197EXPORT_SYMBOL(mptscsih_is_phys_disk);
2198
2199u8
2200mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2201{
2202 struct inactive_raid_component_info *component_info;
2203 int i, j;
2204 RaidPhysDiskPage1_t *phys_disk;
2205 int rc = -ENXIO;
2206 int num_paths;
2207
2208 if (!ioc->raid_data.pIocPg3)
2209 goto out;
2210 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2211 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2212 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2213 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2214 goto out;
2215 }
2216 }
2217
2218 if (ioc->bus_type != SAS)
2219 goto out;
2220
2221 /*
2222 * Check if dual path
2223 */
2224 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2225 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2226 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2227 if (num_paths < 2)
2228 continue;
2229 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2230 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2231 if (!phys_disk)
2232 continue;
2233 if ((mpt_raid_phys_disk_pg1(ioc,
2234 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2235 phys_disk))) {
2236 kfree(phys_disk);
2237 continue;
2238 }
2239 for (j = 0; j < num_paths; j++) {
2240 if ((phys_disk->Path[j].Flags &
2241 MPI_RAID_PHYSDISK1_FLAG_INVALID))
2242 continue;
2243 if ((phys_disk->Path[j].Flags &
2244 MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2245 continue;
2246 if ((id == phys_disk->Path[j].PhysDiskID) &&
2247 (channel == phys_disk->Path[j].PhysDiskBus)) {
2248 rc = phys_disk->PhysDiskNum;
2249 kfree(phys_disk);
2250 goto out;
2251 }
2252 }
2253 kfree(phys_disk);
2254 }
2255
2256 /*
2257 * Check inactive list for matching phys disks
2258 */
2259 if (list_empty(&ioc->raid_data.inactive_list))
2260 goto out;
2261
2262 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2263 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2264 list) {
2265 if ((component_info->d.PhysDiskID == id) &&
2266 (component_info->d.PhysDiskBus == channel))
2267 rc = component_info->d.PhysDiskNum;
2268 }
2269 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2270
2271 out:
2272 return rc;
2273}
2274EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2275
2276/*
2277 * OS entry point to allow for host driver to free allocated memory
2278 * Called if no device present or device being unloaded
2279 */
2280void
2281mptscsih_slave_destroy(struct scsi_device *sdev)
2282{
2283 struct Scsi_Host *host = sdev->host;
2284 MPT_SCSI_HOST *hd = shost_priv(host);
2285 VirtTarget *vtarget;
2286 VirtDevice *vdevice;
2287 struct scsi_target *starget;
2288
2289 starget = scsi_target(sdev);
2290 vtarget = starget->hostdata;
2291 vdevice = sdev->hostdata;
2292 if (!vdevice)
2293 return;
2294
2295 mptscsih_search_running_cmds(hd, vdevice);
2296 vtarget->num_luns--;
2297 mptscsih_synchronize_cache(hd, vdevice);
2298 kfree(vdevice);
2299 sdev->hostdata = NULL;
2300}
2301
2302/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2303/*
2304 * mptscsih_change_queue_depth - This function will set a devices queue depth
2305 * @sdev: per scsi_device pointer
2306 * @qdepth: requested queue depth
2307 *
2308 * Adding support for new 'change_queue_depth' api.
2309*/
2310int
2311mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
2312{
2313 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
2314 VirtTarget *vtarget;
2315 struct scsi_target *starget;
2316 int max_depth;
2317 MPT_ADAPTER *ioc = hd->ioc;
2318
2319 starget = scsi_target(sdev);
2320 vtarget = starget->hostdata;
2321
2322 if (ioc->bus_type == SPI) {
2323 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2324 max_depth = 1;
2325 else if (sdev->type == TYPE_DISK &&
2326 vtarget->minSyncFactor <= MPT_ULTRA160)
2327 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2328 else
2329 max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2330 } else
2331 max_depth = ioc->sh->can_queue;
2332
2333 if (!sdev->tagged_supported)
2334 max_depth = 1;
2335
2336 if (qdepth > max_depth)
2337 qdepth = max_depth;
2338
2339 return scsi_change_queue_depth(sdev, qdepth);
2340}
2341
2342/*
2343 * OS entry point to adjust the queue_depths on a per-device basis.
2344 * Called once per device the bus scan. Use it to force the queue_depth
2345 * member to 1 if a device does not support Q tags.
2346 * Return non-zero if fails.
2347 */
2348int
2349mptscsih_slave_configure(struct scsi_device *sdev)
2350{
2351 struct Scsi_Host *sh = sdev->host;
2352 VirtTarget *vtarget;
2353 VirtDevice *vdevice;
2354 struct scsi_target *starget;
2355 MPT_SCSI_HOST *hd = shost_priv(sh);
2356 MPT_ADAPTER *ioc = hd->ioc;
2357
2358 starget = scsi_target(sdev);
2359 vtarget = starget->hostdata;
2360 vdevice = sdev->hostdata;
2361
2362 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2363 "device @ %p, channel=%d, id=%d, lun=%llu\n",
2364 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2365 if (ioc->bus_type == SPI)
2366 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2367 "sdtr %d wdtr %d ppr %d inq length=%d\n",
2368 ioc->name, sdev->sdtr, sdev->wdtr,
2369 sdev->ppr, sdev->inquiry_len));
2370
2371 vdevice->configured_lun = 1;
2372
2373 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2374 "Queue depth=%d, tflags=%x\n",
2375 ioc->name, sdev->queue_depth, vtarget->tflags));
2376
2377 if (ioc->bus_type == SPI)
2378 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2379 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2380 ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2381 vtarget->minSyncFactor));
2382
2383 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
2384 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2385 "tagged %d, simple %d\n",
2386 ioc->name,sdev->tagged_supported, sdev->simple_tags));
2387
2388 blk_queue_dma_alignment (sdev->request_queue, 512 - 1);
2389
2390 return 0;
2391}
2392
2393/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2394/*
2395 * Private routines...
2396 */
2397
2398/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2399/* Utility function to copy sense data from the scsi_cmnd buffer
2400 * to the FC and SCSI target structures.
2401 *
2402 */
2403static void
2404mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2405{
2406 VirtDevice *vdevice;
2407 SCSIIORequest_t *pReq;
2408 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount);
2409 MPT_ADAPTER *ioc = hd->ioc;
2410
2411 /* Get target structure
2412 */
2413 pReq = (SCSIIORequest_t *) mf;
2414 vdevice = sc->device->hostdata;
2415
2416 if (sense_count) {
2417 u8 *sense_data;
2418 int req_index;
2419
2420 /* Copy the sense received into the scsi command block. */
2421 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2422 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2423 memcpy(sc->sense_buffer, sense_data, MPT_SENSE_BUFFER_ALLOC);
2424
2425 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2426 */
2427 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2428 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2429 int idx;
2430
2431 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2432 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2433 ioc->events[idx].eventContext = ioc->eventContext;
2434
2435 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2436 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2437 (sc->device->channel << 8) | sc->device->id;
2438
2439 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2440
2441 ioc->eventContext++;
2442 if (ioc->pcidev->vendor ==
2443 PCI_VENDOR_ID_IBM) {
2444 mptscsih_issue_sep_command(ioc,
2445 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2446 vdevice->vtarget->tflags |=
2447 MPT_TARGET_FLAGS_LED_ON;
2448 }
2449 }
2450 }
2451 } else {
2452 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2453 ioc->name));
2454 }
2455}
2456
2457/**
2458 * mptscsih_get_scsi_lookup - retrieves scmd entry
2459 * @ioc: Pointer to MPT_ADAPTER structure
2460 * @i: index into the array
2461 *
2462 * Returns the scsi_cmd pointer
2463 */
2464struct scsi_cmnd *
2465mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2466{
2467 unsigned long flags;
2468 struct scsi_cmnd *scmd;
2469
2470 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2471 scmd = ioc->ScsiLookup[i];
2472 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2473
2474 return scmd;
2475}
2476EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
2477
2478/**
2479 * mptscsih_getclear_scsi_lookup - retrieves and clears scmd entry from ScsiLookup[] array list
2480 * @ioc: Pointer to MPT_ADAPTER structure
2481 * @i: index into the array
2482 *
2483 * Returns the scsi_cmd pointer
2484 *
2485 **/
2486static struct scsi_cmnd *
2487mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2488{
2489 unsigned long flags;
2490 struct scsi_cmnd *scmd;
2491
2492 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2493 scmd = ioc->ScsiLookup[i];
2494 ioc->ScsiLookup[i] = NULL;
2495 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2496
2497 return scmd;
2498}
2499
2500/**
2501 * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list
2502 *
2503 * @ioc: Pointer to MPT_ADAPTER structure
2504 * @i: index into the array
2505 * @scmd: scsi_cmnd pointer
2506 *
2507 **/
2508static void
2509mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2510{
2511 unsigned long flags;
2512
2513 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2514 ioc->ScsiLookup[i] = scmd;
2515 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2516}
2517
2518/**
2519 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2520 * @ioc: Pointer to MPT_ADAPTER structure
2521 * @sc: scsi_cmnd pointer
2522 */
2523static int
2524SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2525{
2526 unsigned long flags;
2527 int i, index=-1;
2528
2529 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2530 for (i = 0; i < ioc->req_depth; i++) {
2531 if (ioc->ScsiLookup[i] == sc) {
2532 index = i;
2533 goto out;
2534 }
2535 }
2536
2537 out:
2538 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2539 return index;
2540}
2541
2542/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2543int
2544mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2545{
2546 MPT_SCSI_HOST *hd;
2547
2548 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2549 return 0;
2550
2551 hd = shost_priv(ioc->sh);
2552 switch (reset_phase) {
2553 case MPT_IOC_SETUP_RESET:
2554 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2555 "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
2556 break;
2557 case MPT_IOC_PRE_RESET:
2558 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2559 "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
2560 mptscsih_flush_running_cmds(hd);
2561 break;
2562 case MPT_IOC_POST_RESET:
2563 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2564 "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
2565 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) {
2566 ioc->internal_cmds.status |=
2567 MPT_MGMT_STATUS_DID_IOCRESET;
2568 complete(&ioc->internal_cmds.done);
2569 }
2570 break;
2571 default:
2572 break;
2573 }
2574 return 1; /* currently means nothing really */
2575}
2576
2577/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2578int
2579mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2580{
2581 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2582
2583 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2584 "MPT event (=%02Xh) routed to SCSI host driver!\n",
2585 ioc->name, event));
2586
2587 if ((event == MPI_EVENT_IOC_BUS_RESET ||
2588 event == MPI_EVENT_EXT_BUS_RESET) &&
2589 (ioc->bus_type == SPI) && (ioc->soft_resets < -1))
2590 ioc->soft_resets++;
2591
2592 return 1; /* currently means nothing really */
2593}
2594
2595/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2596/*
2597 * Bus Scan and Domain Validation functionality ...
2598 */
2599
2600/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2601/*
2602 * mptscsih_scandv_complete - Scan and DV callback routine registered
2603 * to Fustion MPT (base) driver.
2604 *
2605 * @ioc: Pointer to MPT_ADAPTER structure
2606 * @mf: Pointer to original MPT request frame
2607 * @mr: Pointer to MPT reply frame (NULL if TurboReply)
2608 *
2609 * This routine is called from mpt.c::mpt_interrupt() at the completion
2610 * of any SCSI IO request.
2611 * This routine is registered with the Fusion MPT (base) driver at driver
2612 * load/init time via the mpt_register() API call.
2613 *
2614 * Returns 1 indicating alloc'd request frame ptr should be freed.
2615 *
2616 * Remark: Sets a completion code and (possibly) saves sense data
2617 * in the IOC member localReply structure.
2618 * Used ONLY for DV and other internal commands.
2619 */
2620int
2621mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2622 MPT_FRAME_HDR *reply)
2623{
2624 SCSIIORequest_t *pReq;
2625 SCSIIOReply_t *pReply;
2626 u8 cmd;
2627 u16 req_idx;
2628 u8 *sense_data;
2629 int sz;
2630
2631 ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2632 ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD;
2633 if (!reply)
2634 goto out;
2635
2636 pReply = (SCSIIOReply_t *) reply;
2637 pReq = (SCSIIORequest_t *) req;
2638 ioc->internal_cmds.completion_code =
2639 mptscsih_get_completion_code(ioc, req, reply);
2640 ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2641 memcpy(ioc->internal_cmds.reply, reply,
2642 min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength));
2643 cmd = reply->u.hdr.Function;
2644 if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
2645 (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) &&
2646 (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
2647 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
2648 sense_data = ((u8 *)ioc->sense_buf_pool +
2649 (req_idx * MPT_SENSE_BUFFER_ALLOC));
2650 sz = min_t(int, pReq->SenseBufferLength,
2651 MPT_SENSE_BUFFER_ALLOC);
2652 memcpy(ioc->internal_cmds.sense, sense_data, sz);
2653 }
2654 out:
2655 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING))
2656 return 0;
2657 ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2658 complete(&ioc->internal_cmds.done);
2659 return 1;
2660}
2661
2662
2663/**
2664 * mptscsih_get_completion_code - get completion code from MPT request
2665 * @ioc: Pointer to MPT_ADAPTER structure
2666 * @req: Pointer to original MPT request frame
2667 * @reply: Pointer to MPT reply frame (NULL if TurboReply)
2668 *
2669 **/
2670static int
2671mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2672 MPT_FRAME_HDR *reply)
2673{
2674 SCSIIOReply_t *pReply;
2675 MpiRaidActionReply_t *pr;
2676 u8 scsi_status;
2677 u16 status;
2678 int completion_code;
2679
2680 pReply = (SCSIIOReply_t *)reply;
2681 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2682 scsi_status = pReply->SCSIStatus;
2683
2684 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2685 "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh,"
2686 "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState,
2687 scsi_status, le32_to_cpu(pReply->IOCLogInfo)));
2688
2689 switch (status) {
2690
2691 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
2692 completion_code = MPT_SCANDV_SELECTION_TIMEOUT;
2693 break;
2694
2695 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
2696 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
2697 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
2698 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
2699 completion_code = MPT_SCANDV_DID_RESET;
2700 break;
2701
2702 case MPI_IOCSTATUS_BUSY:
2703 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
2704 completion_code = MPT_SCANDV_BUSY;
2705 break;
2706
2707 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
2708 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
2709 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
2710 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2711 completion_code = MPT_SCANDV_GOOD;
2712 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2713 pr = (MpiRaidActionReply_t *)reply;
2714 if (le16_to_cpu(pr->ActionStatus) ==
2715 MPI_RAID_ACTION_ASTATUS_SUCCESS)
2716 completion_code = MPT_SCANDV_GOOD;
2717 else
2718 completion_code = MPT_SCANDV_SOME_ERROR;
2719 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)
2720 completion_code = MPT_SCANDV_SENSE;
2721 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2722 if (req->u.scsireq.CDB[0] == INQUIRY)
2723 completion_code = MPT_SCANDV_ISSUE_SENSE;
2724 else
2725 completion_code = MPT_SCANDV_DID_RESET;
2726 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2727 completion_code = MPT_SCANDV_DID_RESET;
2728 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2729 completion_code = MPT_SCANDV_DID_RESET;
2730 else if (scsi_status == MPI_SCSI_STATUS_BUSY)
2731 completion_code = MPT_SCANDV_BUSY;
2732 else
2733 completion_code = MPT_SCANDV_GOOD;
2734 break;
2735
2736 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
2737 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2738 completion_code = MPT_SCANDV_DID_RESET;
2739 else
2740 completion_code = MPT_SCANDV_SOME_ERROR;
2741 break;
2742 default:
2743 completion_code = MPT_SCANDV_SOME_ERROR;
2744 break;
2745
2746 } /* switch(status) */
2747
2748 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2749 " completionCode set to %08xh\n", ioc->name, completion_code));
2750 return completion_code;
2751}
2752
2753/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2754/**
2755 * mptscsih_do_cmd - Do internal command.
2756 * @hd: MPT_SCSI_HOST pointer
2757 * @io: INTERNAL_CMD pointer.
2758 *
2759 * Issue the specified internally generated command and do command
2760 * specific cleanup. For bus scan / DV only.
2761 * NOTES: If command is Inquiry and status is good,
2762 * initialize a target structure, save the data
2763 *
2764 * Remark: Single threaded access only.
2765 *
2766 * Return:
2767 * < 0 if an illegal command or no resources
2768 *
2769 * 0 if good
2770 *
2771 * > 0 if command complete but some type of completion error.
2772 */
2773static int
2774mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2775{
2776 MPT_FRAME_HDR *mf;
2777 SCSIIORequest_t *pScsiReq;
2778 int my_idx, ii, dir;
2779 int timeout;
2780 char cmdLen;
2781 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2782 u8 cmd = io->cmd;
2783 MPT_ADAPTER *ioc = hd->ioc;
2784 int ret = 0;
2785 unsigned long timeleft;
2786 unsigned long flags;
2787
2788 /* don't send internal command during diag reset */
2789 spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
2790 if (ioc->ioc_reset_in_progress) {
2791 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2792 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2793 "%s: busy with host reset\n", ioc->name, __func__));
2794 return MPT_SCANDV_BUSY;
2795 }
2796 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2797
2798 mutex_lock(&ioc->internal_cmds.mutex);
2799
2800 /* Set command specific information
2801 */
2802 switch (cmd) {
2803 case INQUIRY:
2804 cmdLen = 6;
2805 dir = MPI_SCSIIO_CONTROL_READ;
2806 CDB[0] = cmd;
2807 CDB[4] = io->size;
2808 timeout = 10;
2809 break;
2810
2811 case TEST_UNIT_READY:
2812 cmdLen = 6;
2813 dir = MPI_SCSIIO_CONTROL_READ;
2814 timeout = 10;
2815 break;
2816
2817 case START_STOP:
2818 cmdLen = 6;
2819 dir = MPI_SCSIIO_CONTROL_READ;
2820 CDB[0] = cmd;
2821 CDB[4] = 1; /*Spin up the disk */
2822 timeout = 15;
2823 break;
2824
2825 case REQUEST_SENSE:
2826 cmdLen = 6;
2827 CDB[0] = cmd;
2828 CDB[4] = io->size;
2829 dir = MPI_SCSIIO_CONTROL_READ;
2830 timeout = 10;
2831 break;
2832
2833 case READ_BUFFER:
2834 cmdLen = 10;
2835 dir = MPI_SCSIIO_CONTROL_READ;
2836 CDB[0] = cmd;
2837 if (io->flags & MPT_ICFLAG_ECHO) {
2838 CDB[1] = 0x0A;
2839 } else {
2840 CDB[1] = 0x02;
2841 }
2842
2843 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2844 CDB[1] |= 0x01;
2845 }
2846 CDB[6] = (io->size >> 16) & 0xFF;
2847 CDB[7] = (io->size >> 8) & 0xFF;
2848 CDB[8] = io->size & 0xFF;
2849 timeout = 10;
2850 break;
2851
2852 case WRITE_BUFFER:
2853 cmdLen = 10;
2854 dir = MPI_SCSIIO_CONTROL_WRITE;
2855 CDB[0] = cmd;
2856 if (io->flags & MPT_ICFLAG_ECHO) {
2857 CDB[1] = 0x0A;
2858 } else {
2859 CDB[1] = 0x02;
2860 }
2861 CDB[6] = (io->size >> 16) & 0xFF;
2862 CDB[7] = (io->size >> 8) & 0xFF;
2863 CDB[8] = io->size & 0xFF;
2864 timeout = 10;
2865 break;
2866
2867 case RESERVE:
2868 cmdLen = 6;
2869 dir = MPI_SCSIIO_CONTROL_READ;
2870 CDB[0] = cmd;
2871 timeout = 10;
2872 break;
2873
2874 case RELEASE:
2875 cmdLen = 6;
2876 dir = MPI_SCSIIO_CONTROL_READ;
2877 CDB[0] = cmd;
2878 timeout = 10;
2879 break;
2880
2881 case SYNCHRONIZE_CACHE:
2882 cmdLen = 10;
2883 dir = MPI_SCSIIO_CONTROL_READ;
2884 CDB[0] = cmd;
2885// CDB[1] = 0x02; /* set immediate bit */
2886 timeout = 10;
2887 break;
2888
2889 default:
2890 /* Error Case */
2891 ret = -EFAULT;
2892 goto out;
2893 }
2894
2895 /* Get and Populate a free Frame
2896 * MsgContext set in mpt_get_msg_frame call
2897 */
2898 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
2899 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n",
2900 ioc->name, __func__));
2901 ret = MPT_SCANDV_BUSY;
2902 goto out;
2903 }
2904
2905 pScsiReq = (SCSIIORequest_t *) mf;
2906
2907 /* Get the request index */
2908 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2909 ADD_INDEX_LOG(my_idx); /* for debug */
2910
2911 if (io->flags & MPT_ICFLAG_PHYS_DISK) {
2912 pScsiReq->TargetID = io->physDiskNum;
2913 pScsiReq->Bus = 0;
2914 pScsiReq->ChainOffset = 0;
2915 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2916 } else {
2917 pScsiReq->TargetID = io->id;
2918 pScsiReq->Bus = io->channel;
2919 pScsiReq->ChainOffset = 0;
2920 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2921 }
2922
2923 pScsiReq->CDBLength = cmdLen;
2924 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
2925
2926 pScsiReq->Reserved = 0;
2927
2928 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
2929 /* MsgContext set in mpt_get_msg_fram call */
2930
2931 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
2932
2933 if (io->flags & MPT_ICFLAG_TAGGED_CMD)
2934 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
2935 else
2936 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2937
2938 if (cmd == REQUEST_SENSE) {
2939 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2940 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2941 "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd));
2942 }
2943
2944 for (ii = 0; ii < 16; ii++)
2945 pScsiReq->CDB[ii] = CDB[ii];
2946
2947 pScsiReq->DataLength = cpu_to_le32(io->size);
2948 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
2949 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
2950
2951 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2952 "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%llu\n",
2953 ioc->name, __func__, cmd, io->channel, io->id, io->lun));
2954
2955 if (dir == MPI_SCSIIO_CONTROL_READ)
2956 ioc->add_sge((char *) &pScsiReq->SGL,
2957 MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma);
2958 else
2959 ioc->add_sge((char *) &pScsiReq->SGL,
2960 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma);
2961
2962 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
2963 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
2964 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done,
2965 timeout*HZ);
2966 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2967 ret = MPT_SCANDV_DID_RESET;
2968 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2969 "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__,
2970 cmd));
2971 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2972 mpt_free_msg_frame(ioc, mf);
2973 goto out;
2974 }
2975 if (!timeleft) {
2976 printk(MYIOC_s_WARN_FMT
2977 "Issuing Reset from %s!! doorbell=0x%08xh"
2978 " cmd=0x%02x\n",
2979 ioc->name, __func__, mpt_GetIocState(ioc, 0),
2980 cmd);
2981 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
2982 mpt_free_msg_frame(ioc, mf);
2983 }
2984 goto out;
2985 }
2986
2987 ret = ioc->internal_cmds.completion_code;
2988 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n",
2989 ioc->name, __func__, ret));
2990
2991 out:
2992 CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
2993 mutex_unlock(&ioc->internal_cmds.mutex);
2994 return ret;
2995}
2996
2997/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2998/**
2999 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3000 * @hd: Pointer to a SCSI HOST structure
3001 * @vdevice: virtual target device
3002 *
3003 * Uses the ISR, but with special processing.
3004 * MUST be single-threaded.
3005 *
3006 */
3007static void
3008mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3009{
3010 INTERNAL_CMD iocmd;
3011
3012 /* Ignore hidden raid components, this is handled when the command
3013 * is sent to the volume
3014 */
3015 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3016 return;
3017
3018 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3019 !vdevice->configured_lun)
3020 return;
3021
3022 /* Following parameters will not change
3023 * in this routine.
3024 */
3025 iocmd.cmd = SYNCHRONIZE_CACHE;
3026 iocmd.flags = 0;
3027 iocmd.physDiskNum = -1;
3028 iocmd.data = NULL;
3029 iocmd.data_dma = -1;
3030 iocmd.size = 0;
3031 iocmd.rsvd = iocmd.rsvd2 = 0;
3032 iocmd.channel = vdevice->vtarget->channel;
3033 iocmd.id = vdevice->vtarget->id;
3034 iocmd.lun = vdevice->lun;
3035
3036 mptscsih_do_cmd(hd, &iocmd);
3037}
3038
3039static ssize_t
3040mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3041 char *buf)
3042{
3043 struct Scsi_Host *host = class_to_shost(dev);
3044 MPT_SCSI_HOST *hd = shost_priv(host);
3045 MPT_ADAPTER *ioc = hd->ioc;
3046
3047 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3048 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3049 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3050 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3051 ioc->facts.FWVersion.Word & 0x000000FF);
3052}
3053static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3054
3055static ssize_t
3056mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3057 char *buf)
3058{
3059 struct Scsi_Host *host = class_to_shost(dev);
3060 MPT_SCSI_HOST *hd = shost_priv(host);
3061 MPT_ADAPTER *ioc = hd->ioc;
3062
3063 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3064 (ioc->biosVersion & 0xFF000000) >> 24,
3065 (ioc->biosVersion & 0x00FF0000) >> 16,
3066 (ioc->biosVersion & 0x0000FF00) >> 8,
3067 ioc->biosVersion & 0x000000FF);
3068}
3069static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3070
3071static ssize_t
3072mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3073 char *buf)
3074{
3075 struct Scsi_Host *host = class_to_shost(dev);
3076 MPT_SCSI_HOST *hd = shost_priv(host);
3077 MPT_ADAPTER *ioc = hd->ioc;
3078
3079 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3080}
3081static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3082
3083static ssize_t
3084mptscsih_version_product_show(struct device *dev,
3085 struct device_attribute *attr,
3086char *buf)
3087{
3088 struct Scsi_Host *host = class_to_shost(dev);
3089 MPT_SCSI_HOST *hd = shost_priv(host);
3090 MPT_ADAPTER *ioc = hd->ioc;
3091
3092 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3093}
3094static DEVICE_ATTR(version_product, S_IRUGO,
3095 mptscsih_version_product_show, NULL);
3096
3097static ssize_t
3098mptscsih_version_nvdata_persistent_show(struct device *dev,
3099 struct device_attribute *attr,
3100 char *buf)
3101{
3102 struct Scsi_Host *host = class_to_shost(dev);
3103 MPT_SCSI_HOST *hd = shost_priv(host);
3104 MPT_ADAPTER *ioc = hd->ioc;
3105
3106 return snprintf(buf, PAGE_SIZE, "%02xh\n",
3107 ioc->nvdata_version_persistent);
3108}
3109static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3110 mptscsih_version_nvdata_persistent_show, NULL);
3111
3112static ssize_t
3113mptscsih_version_nvdata_default_show(struct device *dev,
3114 struct device_attribute *attr, char *buf)
3115{
3116 struct Scsi_Host *host = class_to_shost(dev);
3117 MPT_SCSI_HOST *hd = shost_priv(host);
3118 MPT_ADAPTER *ioc = hd->ioc;
3119
3120 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3121}
3122static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3123 mptscsih_version_nvdata_default_show, NULL);
3124
3125static ssize_t
3126mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3127 char *buf)
3128{
3129 struct Scsi_Host *host = class_to_shost(dev);
3130 MPT_SCSI_HOST *hd = shost_priv(host);
3131 MPT_ADAPTER *ioc = hd->ioc;
3132
3133 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3134}
3135static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3136
3137static ssize_t
3138mptscsih_board_assembly_show(struct device *dev,
3139 struct device_attribute *attr, char *buf)
3140{
3141 struct Scsi_Host *host = class_to_shost(dev);
3142 MPT_SCSI_HOST *hd = shost_priv(host);
3143 MPT_ADAPTER *ioc = hd->ioc;
3144
3145 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3146}
3147static DEVICE_ATTR(board_assembly, S_IRUGO,
3148 mptscsih_board_assembly_show, NULL);
3149
3150static ssize_t
3151mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3152 char *buf)
3153{
3154 struct Scsi_Host *host = class_to_shost(dev);
3155 MPT_SCSI_HOST *hd = shost_priv(host);
3156 MPT_ADAPTER *ioc = hd->ioc;
3157
3158 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3159}
3160static DEVICE_ATTR(board_tracer, S_IRUGO,
3161 mptscsih_board_tracer_show, NULL);
3162
3163static ssize_t
3164mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3165 char *buf)
3166{
3167 struct Scsi_Host *host = class_to_shost(dev);
3168 MPT_SCSI_HOST *hd = shost_priv(host);
3169 MPT_ADAPTER *ioc = hd->ioc;
3170
3171 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3172}
3173static DEVICE_ATTR(io_delay, S_IRUGO,
3174 mptscsih_io_delay_show, NULL);
3175
3176static ssize_t
3177mptscsih_device_delay_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, "%02d\n", ioc->device_missing_delay);
3185}
3186static DEVICE_ATTR(device_delay, S_IRUGO,
3187 mptscsih_device_delay_show, NULL);
3188
3189static ssize_t
3190mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3191 char *buf)
3192{
3193 struct Scsi_Host *host = class_to_shost(dev);
3194 MPT_SCSI_HOST *hd = shost_priv(host);
3195 MPT_ADAPTER *ioc = hd->ioc;
3196
3197 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3198}
3199static ssize_t
3200mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3201 const char *buf, size_t count)
3202{
3203 struct Scsi_Host *host = class_to_shost(dev);
3204 MPT_SCSI_HOST *hd = shost_priv(host);
3205 MPT_ADAPTER *ioc = hd->ioc;
3206 int val = 0;
3207
3208 if (sscanf(buf, "%x", &val) != 1)
3209 return -EINVAL;
3210
3211 ioc->debug_level = val;
3212 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3213 ioc->name, ioc->debug_level);
3214 return strlen(buf);
3215}
3216static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3217 mptscsih_debug_level_show, mptscsih_debug_level_store);
3218
3219struct device_attribute *mptscsih_host_attrs[] = {
3220 &dev_attr_version_fw,
3221 &dev_attr_version_bios,
3222 &dev_attr_version_mpi,
3223 &dev_attr_version_product,
3224 &dev_attr_version_nvdata_persistent,
3225 &dev_attr_version_nvdata_default,
3226 &dev_attr_board_name,
3227 &dev_attr_board_assembly,
3228 &dev_attr_board_tracer,
3229 &dev_attr_io_delay,
3230 &dev_attr_device_delay,
3231 &dev_attr_debug_level,
3232 NULL,
3233};
3234
3235EXPORT_SYMBOL(mptscsih_host_attrs);
3236
3237EXPORT_SYMBOL(mptscsih_remove);
3238EXPORT_SYMBOL(mptscsih_shutdown);
3239#ifdef CONFIG_PM
3240EXPORT_SYMBOL(mptscsih_suspend);
3241EXPORT_SYMBOL(mptscsih_resume);
3242#endif
3243EXPORT_SYMBOL(mptscsih_show_info);
3244EXPORT_SYMBOL(mptscsih_info);
3245EXPORT_SYMBOL(mptscsih_qcmd);
3246EXPORT_SYMBOL(mptscsih_slave_destroy);
3247EXPORT_SYMBOL(mptscsih_slave_configure);
3248EXPORT_SYMBOL(mptscsih_abort);
3249EXPORT_SYMBOL(mptscsih_dev_reset);
3250EXPORT_SYMBOL(mptscsih_bus_reset);
3251EXPORT_SYMBOL(mptscsih_host_reset);
3252EXPORT_SYMBOL(mptscsih_bios_param);
3253EXPORT_SYMBOL(mptscsih_io_done);
3254EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3255EXPORT_SYMBOL(mptscsih_scandv_complete);
3256EXPORT_SYMBOL(mptscsih_event_process);
3257EXPORT_SYMBOL(mptscsih_ioc_reset);
3258EXPORT_SYMBOL(mptscsih_change_queue_depth);
3259
3260/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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 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#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 = %llu\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:%llu] "
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:%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 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->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 if (SCpnt->request && SCpnt->request->ioprio) {
1373 if (((SCpnt->request->ioprio & 0x7) == 1) ||
1374 !(SCpnt->request->ioprio & 0x7))
1375 scsictl |= MPI_SCSIIO_CONTROL_HEADOFQ;
1376 }
1377 } else
1378 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1379
1380
1381 /* Use the above information to set up the message frame
1382 */
1383 pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1384 pScsiReq->Bus = vdevice->vtarget->channel;
1385 pScsiReq->ChainOffset = 0;
1386 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
1387 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1388 else
1389 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1390 pScsiReq->CDBLength = SCpnt->cmd_len;
1391 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1392 pScsiReq->Reserved = 0;
1393 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1394 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1395 pScsiReq->Control = cpu_to_le32(scsictl);
1396
1397 /*
1398 * Write SCSI CDB into the message
1399 */
1400 cmd_len = SCpnt->cmd_len;
1401 for (ii=0; ii < cmd_len; ii++)
1402 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1403
1404 for (ii=cmd_len; ii < 16; ii++)
1405 pScsiReq->CDB[ii] = 0;
1406
1407 /* DataLength */
1408 pScsiReq->DataLength = cpu_to_le32(datalen);
1409
1410 /* SenseBuffer low address */
1411 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1412 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1413
1414 /* Now add the SG list
1415 * Always have a SGE even if null length.
1416 */
1417 if (datalen == 0) {
1418 /* Add a NULL SGE */
1419 ioc->add_sge((char *)&pScsiReq->SGL,
1420 MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1421 (dma_addr_t) -1);
1422 } else {
1423 /* Add a 32 or 64 bit SGE */
1424 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1425 goto fail;
1426 }
1427
1428 SCpnt->host_scribble = (unsigned char *)mf;
1429 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1430
1431 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1432 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1433 ioc->name, SCpnt, mf, my_idx));
1434 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1435 return 0;
1436
1437 fail:
1438 mptscsih_freeChainBuffers(ioc, my_idx);
1439 mpt_free_msg_frame(ioc, mf);
1440 return SCSI_MLQUEUE_HOST_BUSY;
1441}
1442
1443/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1444/*
1445 * mptscsih_freeChainBuffers - Function to free chain buffers associated
1446 * with a SCSI IO request
1447 * @hd: Pointer to the MPT_SCSI_HOST instance
1448 * @req_idx: Index of the SCSI IO request frame.
1449 *
1450 * Called if SG chain buffer allocation fails and mptscsih callbacks.
1451 * No return.
1452 */
1453static void
1454mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1455{
1456 MPT_FRAME_HDR *chain;
1457 unsigned long flags;
1458 int chain_idx;
1459 int next;
1460
1461 /* Get the first chain index and reset
1462 * tracker state.
1463 */
1464 chain_idx = ioc->ReqToChain[req_idx];
1465 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1466
1467 while (chain_idx != MPT_HOST_NO_CHAIN) {
1468
1469 /* Save the next chain buffer index */
1470 next = ioc->ChainToChain[chain_idx];
1471
1472 /* Free this chain buffer and reset
1473 * tracker
1474 */
1475 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1476
1477 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1478 + (chain_idx * ioc->req_sz));
1479
1480 spin_lock_irqsave(&ioc->FreeQlock, flags);
1481 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1482 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1483
1484 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1485 ioc->name, chain_idx));
1486
1487 /* handle next */
1488 chain_idx = next;
1489 }
1490 return;
1491}
1492
1493/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1494/*
1495 * Reset Handling
1496 */
1497
1498/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1499/**
1500 * mptscsih_IssueTaskMgmt - Generic send Task Management function.
1501 * @hd: Pointer to MPT_SCSI_HOST structure
1502 * @type: Task Management type
1503 * @channel: channel number for task management
1504 * @id: Logical Target ID for reset (if appropriate)
1505 * @lun: Logical Unit for reset (if appropriate)
1506 * @ctx2abort: Context for the task to be aborted (if appropriate)
1507 * @timeout: timeout for task management control
1508 *
1509 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1510 * or a non-interrupt thread. In the former, must not call schedule().
1511 *
1512 * Not all fields are meaningfull for all task types.
1513 *
1514 * Returns 0 for SUCCESS, or FAILED.
1515 *
1516 **/
1517int
1518mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, u64 lun,
1519 int ctx2abort, ulong timeout)
1520{
1521 MPT_FRAME_HDR *mf;
1522 SCSITaskMgmt_t *pScsiTm;
1523 int ii;
1524 int retval;
1525 MPT_ADAPTER *ioc = hd->ioc;
1526 unsigned long timeleft;
1527 u8 issue_hard_reset;
1528 u32 ioc_raw_state;
1529 unsigned long time_count;
1530
1531 issue_hard_reset = 0;
1532 ioc_raw_state = mpt_GetIocState(ioc, 0);
1533
1534 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1535 printk(MYIOC_s_WARN_FMT
1536 "TaskMgmt type=%x: IOC Not operational (0x%x)!\n",
1537 ioc->name, type, ioc_raw_state);
1538 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
1539 ioc->name, __func__);
1540 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1541 printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset "
1542 "FAILED!!\n", ioc->name);
1543 return 0;
1544 }
1545
1546 /* DOORBELL ACTIVE check is not required if
1547 * MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported.
1548 */
1549
1550 if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q)
1551 && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) &&
1552 (ioc_raw_state & MPI_DOORBELL_ACTIVE)) {
1553 printk(MYIOC_s_WARN_FMT
1554 "TaskMgmt type=%x: ioc_state: "
1555 "DOORBELL_ACTIVE (0x%x)!\n",
1556 ioc->name, type, ioc_raw_state);
1557 return FAILED;
1558 }
1559
1560 mutex_lock(&ioc->taskmgmt_cmds.mutex);
1561 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
1562 mf = NULL;
1563 retval = FAILED;
1564 goto out;
1565 }
1566
1567 /* Return Fail to calling function if no message frames available.
1568 */
1569 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1570 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1571 "TaskMgmt no msg frames!!\n", ioc->name));
1572 retval = FAILED;
1573 mpt_clear_taskmgmt_in_progress_flag(ioc);
1574 goto out;
1575 }
1576 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
1577 ioc->name, mf));
1578
1579 /* Format the Request
1580 */
1581 pScsiTm = (SCSITaskMgmt_t *) mf;
1582 pScsiTm->TargetID = id;
1583 pScsiTm->Bus = channel;
1584 pScsiTm->ChainOffset = 0;
1585 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1586
1587 pScsiTm->Reserved = 0;
1588 pScsiTm->TaskType = type;
1589 pScsiTm->Reserved1 = 0;
1590 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1591 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1592
1593 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1594
1595 for (ii=0; ii < 7; ii++)
1596 pScsiTm->Reserved2[ii] = 0;
1597
1598 pScsiTm->TaskMsgContext = ctx2abort;
1599
1600 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) "
1601 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort,
1602 type, timeout));
1603
1604 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1605
1606 INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1607 time_count = jiffies;
1608 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1609 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1610 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1611 else {
1612 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1613 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1614 if (retval) {
1615 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1616 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n",
1617 ioc->name, mf, retval));
1618 mpt_free_msg_frame(ioc, mf);
1619 mpt_clear_taskmgmt_in_progress_flag(ioc);
1620 goto out;
1621 }
1622 }
1623
1624 timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
1625 timeout*HZ);
1626 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
1627 retval = FAILED;
1628 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
1629 "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf));
1630 mpt_clear_taskmgmt_in_progress_flag(ioc);
1631 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
1632 goto out;
1633 issue_hard_reset = 1;
1634 goto out;
1635 }
1636
1637 retval = mptscsih_taskmgmt_reply(ioc, type,
1638 (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply);
1639
1640 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1641 "TaskMgmt completed (%d seconds)\n",
1642 ioc->name, jiffies_to_msecs(jiffies - time_count)/1000));
1643
1644 out:
1645
1646 CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1647 if (issue_hard_reset) {
1648 printk(MYIOC_s_WARN_FMT
1649 "Issuing Reset from %s!! doorbell=0x%08x\n",
1650 ioc->name, __func__, mpt_GetIocState(ioc, 0));
1651 retval = (ioc->bus_type == SAS) ?
1652 mpt_HardResetHandler(ioc, CAN_SLEEP) :
1653 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1654 mpt_free_msg_frame(ioc, mf);
1655 }
1656
1657 retval = (retval == 0) ? 0 : FAILED;
1658 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
1659 return retval;
1660}
1661EXPORT_SYMBOL(mptscsih_IssueTaskMgmt);
1662
1663static int
1664mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1665{
1666 switch (ioc->bus_type) {
1667 case FC:
1668 return 40;
1669 case SAS:
1670 return 30;
1671 case SPI:
1672 default:
1673 return 10;
1674 }
1675}
1676
1677/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1678/**
1679 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1680 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1681 *
1682 * (linux scsi_host_template.eh_abort_handler routine)
1683 *
1684 * Returns SUCCESS or FAILED.
1685 **/
1686int
1687mptscsih_abort(struct scsi_cmnd * SCpnt)
1688{
1689 MPT_SCSI_HOST *hd;
1690 MPT_FRAME_HDR *mf;
1691 u32 ctx2abort;
1692 int scpnt_idx;
1693 int retval;
1694 VirtDevice *vdevice;
1695 MPT_ADAPTER *ioc;
1696
1697 /* If we can't locate our host adapter structure, return FAILED status.
1698 */
1699 if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1700 SCpnt->result = DID_RESET << 16;
1701 SCpnt->scsi_done(SCpnt);
1702 printk(KERN_ERR MYNAM ": task abort: "
1703 "can't locate host! (sc=%p)\n", SCpnt);
1704 return FAILED;
1705 }
1706
1707 ioc = hd->ioc;
1708 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1709 ioc->name, SCpnt);
1710 scsi_print_command(SCpnt);
1711
1712 vdevice = SCpnt->device->hostdata;
1713 if (!vdevice || !vdevice->vtarget) {
1714 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1715 "task abort: device has been deleted (sc=%p)\n",
1716 ioc->name, SCpnt));
1717 SCpnt->result = DID_NO_CONNECT << 16;
1718 SCpnt->scsi_done(SCpnt);
1719 retval = SUCCESS;
1720 goto out;
1721 }
1722
1723 /* Task aborts are not supported for hidden raid components.
1724 */
1725 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1726 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1727 "task abort: hidden raid component (sc=%p)\n",
1728 ioc->name, SCpnt));
1729 SCpnt->result = DID_RESET << 16;
1730 retval = FAILED;
1731 goto out;
1732 }
1733
1734 /* Task aborts are not supported for volumes.
1735 */
1736 if (vdevice->vtarget->raidVolume) {
1737 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1738 "task abort: raid volume (sc=%p)\n",
1739 ioc->name, SCpnt));
1740 SCpnt->result = DID_RESET << 16;
1741 retval = FAILED;
1742 goto out;
1743 }
1744
1745 /* Find this command
1746 */
1747 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1748 /* Cmd not found in ScsiLookup.
1749 * Do OS callback.
1750 */
1751 SCpnt->result = DID_RESET << 16;
1752 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1753 "Command not in the active list! (sc=%p)\n", ioc->name,
1754 SCpnt));
1755 retval = SUCCESS;
1756 goto out;
1757 }
1758
1759 if (ioc->timeouts < -1)
1760 ioc->timeouts++;
1761
1762 if (mpt_fwfault_debug)
1763 mpt_halt_firmware(ioc);
1764
1765 /* Most important! Set TaskMsgContext to SCpnt's MsgContext!
1766 * (the IO to be ABORT'd)
1767 *
1768 * NOTE: Since we do not byteswap MsgContext, we do not
1769 * swap it here either. It is an opaque cookie to
1770 * the controller, so it does not matter. -DaveM
1771 */
1772 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1773 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1774 retval = mptscsih_IssueTaskMgmt(hd,
1775 MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1776 vdevice->vtarget->channel,
1777 vdevice->vtarget->id, vdevice->lun,
1778 ctx2abort, mptscsih_get_tm_timeout(ioc));
1779
1780 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) {
1781 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1782 "task abort: command still in active list! (sc=%p)\n",
1783 ioc->name, SCpnt));
1784 retval = FAILED;
1785 } else {
1786 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1787 "task abort: command cleared from active list! (sc=%p)\n",
1788 ioc->name, SCpnt));
1789 retval = SUCCESS;
1790 }
1791
1792 out:
1793 printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n",
1794 ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval,
1795 SCpnt);
1796
1797 return retval;
1798}
1799
1800/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1801/**
1802 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant
1803 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1804 *
1805 * (linux scsi_host_template.eh_dev_reset_handler routine)
1806 *
1807 * Returns SUCCESS or FAILED.
1808 **/
1809int
1810mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1811{
1812 MPT_SCSI_HOST *hd;
1813 int retval;
1814 VirtDevice *vdevice;
1815 MPT_ADAPTER *ioc;
1816
1817 /* If we can't locate our host adapter structure, return FAILED status.
1818 */
1819 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1820 printk(KERN_ERR MYNAM ": target reset: "
1821 "Can't locate host! (sc=%p)\n", SCpnt);
1822 return FAILED;
1823 }
1824
1825 ioc = hd->ioc;
1826 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1827 ioc->name, SCpnt);
1828 scsi_print_command(SCpnt);
1829
1830 vdevice = SCpnt->device->hostdata;
1831 if (!vdevice || !vdevice->vtarget) {
1832 retval = 0;
1833 goto out;
1834 }
1835
1836 /* Target reset to hidden raid component is not supported
1837 */
1838 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1839 retval = FAILED;
1840 goto out;
1841 }
1842
1843 retval = mptscsih_IssueTaskMgmt(hd,
1844 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1845 vdevice->vtarget->channel,
1846 vdevice->vtarget->id, 0, 0,
1847 mptscsih_get_tm_timeout(ioc));
1848
1849 out:
1850 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1851 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1852
1853 if (retval == 0)
1854 return SUCCESS;
1855 else
1856 return FAILED;
1857}
1858
1859
1860/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1861/**
1862 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant
1863 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1864 *
1865 * (linux scsi_host_template.eh_bus_reset_handler routine)
1866 *
1867 * Returns SUCCESS or FAILED.
1868 **/
1869int
1870mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1871{
1872 MPT_SCSI_HOST *hd;
1873 int retval;
1874 VirtDevice *vdevice;
1875 MPT_ADAPTER *ioc;
1876
1877 /* If we can't locate our host adapter structure, return FAILED status.
1878 */
1879 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1880 printk(KERN_ERR MYNAM ": bus reset: "
1881 "Can't locate host! (sc=%p)\n", SCpnt);
1882 return FAILED;
1883 }
1884
1885 ioc = hd->ioc;
1886 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1887 ioc->name, SCpnt);
1888 scsi_print_command(SCpnt);
1889
1890 if (ioc->timeouts < -1)
1891 ioc->timeouts++;
1892
1893 vdevice = SCpnt->device->hostdata;
1894 if (!vdevice || !vdevice->vtarget)
1895 return SUCCESS;
1896 retval = mptscsih_IssueTaskMgmt(hd,
1897 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1898 vdevice->vtarget->channel, 0, 0, 0,
1899 mptscsih_get_tm_timeout(ioc));
1900
1901 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1902 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1903
1904 if (retval == 0)
1905 return SUCCESS;
1906 else
1907 return FAILED;
1908}
1909
1910/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1911/**
1912 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1913 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1914 *
1915 * (linux scsi_host_template.eh_host_reset_handler routine)
1916 *
1917 * Returns SUCCESS or FAILED.
1918 */
1919int
1920mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1921{
1922 MPT_SCSI_HOST * hd;
1923 int status = SUCCESS;
1924 MPT_ADAPTER *ioc;
1925 int retval;
1926
1927 /* If we can't locate the host to reset, then we failed. */
1928 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1929 printk(KERN_ERR MYNAM ": host reset: "
1930 "Can't locate host! (sc=%p)\n", SCpnt);
1931 return FAILED;
1932 }
1933
1934 /* make sure we have no outstanding commands at this stage */
1935 mptscsih_flush_running_cmds(hd);
1936
1937 ioc = hd->ioc;
1938 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
1939 ioc->name, SCpnt);
1940
1941 /* If our attempts to reset the host failed, then return a failed
1942 * status. The host will be taken off line by the SCSI mid-layer.
1943 */
1944 retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1945 if (retval < 0)
1946 status = FAILED;
1947 else
1948 status = SUCCESS;
1949
1950 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
1951 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1952
1953 return status;
1954}
1955
1956static int
1957mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
1958 SCSITaskMgmtReply_t *pScsiTmReply)
1959{
1960 u16 iocstatus;
1961 u32 termination_count;
1962 int retval;
1963
1964 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
1965 retval = FAILED;
1966 goto out;
1967 }
1968
1969 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
1970
1971 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
1972 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
1973
1974 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1975 "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n"
1976 "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n"
1977 "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus,
1978 pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus),
1979 le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode,
1980 termination_count));
1981
1982 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
1983 pScsiTmReply->ResponseCode)
1984 mptscsih_taskmgmt_response_code(ioc,
1985 pScsiTmReply->ResponseCode);
1986
1987 if (iocstatus == MPI_IOCSTATUS_SUCCESS) {
1988 retval = 0;
1989 goto out;
1990 }
1991
1992 retval = FAILED;
1993 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1994 if (termination_count == 1)
1995 retval = 0;
1996 goto out;
1997 }
1998
1999 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
2000 iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
2001 retval = 0;
2002
2003 out:
2004 return retval;
2005}
2006
2007/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2008void
2009mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2010{
2011 char *desc;
2012
2013 switch (response_code) {
2014 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2015 desc = "The task completed.";
2016 break;
2017 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2018 desc = "The IOC received an invalid frame status.";
2019 break;
2020 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2021 desc = "The task type is not supported.";
2022 break;
2023 case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2024 desc = "The requested task failed.";
2025 break;
2026 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2027 desc = "The task completed successfully.";
2028 break;
2029 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2030 desc = "The LUN request is invalid.";
2031 break;
2032 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2033 desc = "The task is in the IOC queue and has not been sent to target.";
2034 break;
2035 default:
2036 desc = "unknown";
2037 break;
2038 }
2039 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2040 ioc->name, response_code, desc);
2041}
2042EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
2043
2044/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2045/**
2046 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2047 * @ioc: Pointer to MPT_ADAPTER structure
2048 * @mf: Pointer to SCSI task mgmt request frame
2049 * @mr: Pointer to SCSI task mgmt reply frame
2050 *
2051 * This routine is called from mptbase.c::mpt_interrupt() at the completion
2052 * of any SCSI task management request.
2053 * This routine is registered with the MPT (base) driver at driver
2054 * load/init time via the mpt_register() API call.
2055 *
2056 * Returns 1 indicating alloc'd request frame ptr should be freed.
2057 **/
2058int
2059mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf,
2060 MPT_FRAME_HDR *mr)
2061{
2062 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2063 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr));
2064
2065 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2066
2067 if (!mr)
2068 goto out;
2069
2070 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2071 memcpy(ioc->taskmgmt_cmds.reply, mr,
2072 min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
2073 out:
2074 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
2075 mpt_clear_taskmgmt_in_progress_flag(ioc);
2076 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2077 complete(&ioc->taskmgmt_cmds.done);
2078 if (ioc->bus_type == SAS)
2079 ioc->schedule_target_reset(ioc);
2080 return 1;
2081 }
2082 return 0;
2083}
2084
2085/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2086/*
2087 * This is anyones guess quite frankly.
2088 */
2089int
2090mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2091 sector_t capacity, int geom[])
2092{
2093 int heads;
2094 int sectors;
2095 sector_t cylinders;
2096 ulong dummy;
2097
2098 heads = 64;
2099 sectors = 32;
2100
2101 dummy = heads * sectors;
2102 cylinders = capacity;
2103 sector_div(cylinders,dummy);
2104
2105 /*
2106 * Handle extended translation size for logical drives
2107 * > 1Gb
2108 */
2109 if ((ulong)capacity >= 0x200000) {
2110 heads = 255;
2111 sectors = 63;
2112 dummy = heads * sectors;
2113 cylinders = capacity;
2114 sector_div(cylinders,dummy);
2115 }
2116
2117 /* return result */
2118 geom[0] = heads;
2119 geom[1] = sectors;
2120 geom[2] = cylinders;
2121
2122 return 0;
2123}
2124
2125/* Search IOC page 3 to determine if this is hidden physical disk
2126 *
2127 */
2128int
2129mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2130{
2131 struct inactive_raid_component_info *component_info;
2132 int i, j;
2133 RaidPhysDiskPage1_t *phys_disk;
2134 int rc = 0;
2135 int num_paths;
2136
2137 if (!ioc->raid_data.pIocPg3)
2138 goto out;
2139 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2140 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2141 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2142 rc = 1;
2143 goto out;
2144 }
2145 }
2146
2147 if (ioc->bus_type != SAS)
2148 goto out;
2149
2150 /*
2151 * Check if dual path
2152 */
2153 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2154 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2155 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2156 if (num_paths < 2)
2157 continue;
2158 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2159 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2160 if (!phys_disk)
2161 continue;
2162 if ((mpt_raid_phys_disk_pg1(ioc,
2163 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2164 phys_disk))) {
2165 kfree(phys_disk);
2166 continue;
2167 }
2168 for (j = 0; j < num_paths; j++) {
2169 if ((phys_disk->Path[j].Flags &
2170 MPI_RAID_PHYSDISK1_FLAG_INVALID))
2171 continue;
2172 if ((phys_disk->Path[j].Flags &
2173 MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2174 continue;
2175 if ((id == phys_disk->Path[j].PhysDiskID) &&
2176 (channel == phys_disk->Path[j].PhysDiskBus)) {
2177 rc = 1;
2178 kfree(phys_disk);
2179 goto out;
2180 }
2181 }
2182 kfree(phys_disk);
2183 }
2184
2185
2186 /*
2187 * Check inactive list for matching phys disks
2188 */
2189 if (list_empty(&ioc->raid_data.inactive_list))
2190 goto out;
2191
2192 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2193 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2194 list) {
2195 if ((component_info->d.PhysDiskID == id) &&
2196 (component_info->d.PhysDiskBus == channel))
2197 rc = 1;
2198 }
2199 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2200
2201 out:
2202 return rc;
2203}
2204EXPORT_SYMBOL(mptscsih_is_phys_disk);
2205
2206u8
2207mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2208{
2209 struct inactive_raid_component_info *component_info;
2210 int i, j;
2211 RaidPhysDiskPage1_t *phys_disk;
2212 int rc = -ENXIO;
2213 int num_paths;
2214
2215 if (!ioc->raid_data.pIocPg3)
2216 goto out;
2217 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2218 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2219 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2220 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2221 goto out;
2222 }
2223 }
2224
2225 if (ioc->bus_type != SAS)
2226 goto out;
2227
2228 /*
2229 * Check if dual path
2230 */
2231 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2232 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2233 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2234 if (num_paths < 2)
2235 continue;
2236 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2237 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2238 if (!phys_disk)
2239 continue;
2240 if ((mpt_raid_phys_disk_pg1(ioc,
2241 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2242 phys_disk))) {
2243 kfree(phys_disk);
2244 continue;
2245 }
2246 for (j = 0; j < num_paths; j++) {
2247 if ((phys_disk->Path[j].Flags &
2248 MPI_RAID_PHYSDISK1_FLAG_INVALID))
2249 continue;
2250 if ((phys_disk->Path[j].Flags &
2251 MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2252 continue;
2253 if ((id == phys_disk->Path[j].PhysDiskID) &&
2254 (channel == phys_disk->Path[j].PhysDiskBus)) {
2255 rc = phys_disk->PhysDiskNum;
2256 kfree(phys_disk);
2257 goto out;
2258 }
2259 }
2260 kfree(phys_disk);
2261 }
2262
2263 /*
2264 * Check inactive list for matching phys disks
2265 */
2266 if (list_empty(&ioc->raid_data.inactive_list))
2267 goto out;
2268
2269 mutex_lock(&ioc->raid_data.inactive_list_mutex);
2270 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2271 list) {
2272 if ((component_info->d.PhysDiskID == id) &&
2273 (component_info->d.PhysDiskBus == channel))
2274 rc = component_info->d.PhysDiskNum;
2275 }
2276 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2277
2278 out:
2279 return rc;
2280}
2281EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2282
2283/*
2284 * OS entry point to allow for host driver to free allocated memory
2285 * Called if no device present or device being unloaded
2286 */
2287void
2288mptscsih_slave_destroy(struct scsi_device *sdev)
2289{
2290 struct Scsi_Host *host = sdev->host;
2291 MPT_SCSI_HOST *hd = shost_priv(host);
2292 VirtTarget *vtarget;
2293 VirtDevice *vdevice;
2294 struct scsi_target *starget;
2295
2296 starget = scsi_target(sdev);
2297 vtarget = starget->hostdata;
2298 vdevice = sdev->hostdata;
2299 if (!vdevice)
2300 return;
2301
2302 mptscsih_search_running_cmds(hd, vdevice);
2303 vtarget->num_luns--;
2304 mptscsih_synchronize_cache(hd, vdevice);
2305 kfree(vdevice);
2306 sdev->hostdata = NULL;
2307}
2308
2309/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2310/*
2311 * mptscsih_change_queue_depth - This function will set a devices queue depth
2312 * @sdev: per scsi_device pointer
2313 * @qdepth: requested queue depth
2314 *
2315 * Adding support for new 'change_queue_depth' api.
2316*/
2317int
2318mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
2319{
2320 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
2321 VirtTarget *vtarget;
2322 struct scsi_target *starget;
2323 int max_depth;
2324 MPT_ADAPTER *ioc = hd->ioc;
2325
2326 starget = scsi_target(sdev);
2327 vtarget = starget->hostdata;
2328
2329 if (ioc->bus_type == SPI) {
2330 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2331 max_depth = 1;
2332 else if (sdev->type == TYPE_DISK &&
2333 vtarget->minSyncFactor <= MPT_ULTRA160)
2334 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2335 else
2336 max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2337 } else
2338 max_depth = ioc->sh->can_queue;
2339
2340 if (!sdev->tagged_supported)
2341 max_depth = 1;
2342
2343 if (qdepth > max_depth)
2344 qdepth = max_depth;
2345
2346 return scsi_change_queue_depth(sdev, qdepth);
2347}
2348
2349/*
2350 * OS entry point to adjust the queue_depths on a per-device basis.
2351 * Called once per device the bus scan. Use it to force the queue_depth
2352 * member to 1 if a device does not support Q tags.
2353 * Return non-zero if fails.
2354 */
2355int
2356mptscsih_slave_configure(struct scsi_device *sdev)
2357{
2358 struct Scsi_Host *sh = sdev->host;
2359 VirtTarget *vtarget;
2360 VirtDevice *vdevice;
2361 struct scsi_target *starget;
2362 MPT_SCSI_HOST *hd = shost_priv(sh);
2363 MPT_ADAPTER *ioc = hd->ioc;
2364
2365 starget = scsi_target(sdev);
2366 vtarget = starget->hostdata;
2367 vdevice = sdev->hostdata;
2368
2369 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2370 "device @ %p, channel=%d, id=%d, lun=%llu\n",
2371 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2372 if (ioc->bus_type == SPI)
2373 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2374 "sdtr %d wdtr %d ppr %d inq length=%d\n",
2375 ioc->name, sdev->sdtr, sdev->wdtr,
2376 sdev->ppr, sdev->inquiry_len));
2377
2378 vdevice->configured_lun = 1;
2379
2380 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2381 "Queue depth=%d, tflags=%x\n",
2382 ioc->name, sdev->queue_depth, vtarget->tflags));
2383
2384 if (ioc->bus_type == SPI)
2385 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2386 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2387 ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2388 vtarget->minSyncFactor));
2389
2390 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
2391 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2392 "tagged %d, simple %d\n",
2393 ioc->name,sdev->tagged_supported, sdev->simple_tags));
2394
2395 blk_queue_dma_alignment (sdev->request_queue, 512 - 1);
2396
2397 return 0;
2398}
2399
2400/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2401/*
2402 * Private routines...
2403 */
2404
2405/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2406/* Utility function to copy sense data from the scsi_cmnd buffer
2407 * to the FC and SCSI target structures.
2408 *
2409 */
2410static void
2411mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2412{
2413 VirtDevice *vdevice;
2414 SCSIIORequest_t *pReq;
2415 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount);
2416 MPT_ADAPTER *ioc = hd->ioc;
2417
2418 /* Get target structure
2419 */
2420 pReq = (SCSIIORequest_t *) mf;
2421 vdevice = sc->device->hostdata;
2422
2423 if (sense_count) {
2424 u8 *sense_data;
2425 int req_index;
2426
2427 /* Copy the sense received into the scsi command block. */
2428 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2429 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2430 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2431
2432 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2433 */
2434 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2435 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2436 int idx;
2437
2438 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2439 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2440 ioc->events[idx].eventContext = ioc->eventContext;
2441
2442 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2443 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2444 (sc->device->channel << 8) | sc->device->id;
2445
2446 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2447
2448 ioc->eventContext++;
2449 if (ioc->pcidev->vendor ==
2450 PCI_VENDOR_ID_IBM) {
2451 mptscsih_issue_sep_command(ioc,
2452 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2453 vdevice->vtarget->tflags |=
2454 MPT_TARGET_FLAGS_LED_ON;
2455 }
2456 }
2457 }
2458 } else {
2459 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2460 ioc->name));
2461 }
2462}
2463
2464/**
2465 * mptscsih_get_scsi_lookup - retrieves scmd entry
2466 * @ioc: Pointer to MPT_ADAPTER structure
2467 * @i: index into the array
2468 *
2469 * Returns the scsi_cmd pointer
2470 */
2471struct scsi_cmnd *
2472mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2473{
2474 unsigned long flags;
2475 struct scsi_cmnd *scmd;
2476
2477 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2478 scmd = ioc->ScsiLookup[i];
2479 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2480
2481 return scmd;
2482}
2483EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
2484
2485/**
2486 * mptscsih_getclear_scsi_lookup - retrieves and clears scmd entry from ScsiLookup[] array list
2487 * @ioc: Pointer to MPT_ADAPTER structure
2488 * @i: index into the array
2489 *
2490 * Returns the scsi_cmd pointer
2491 *
2492 **/
2493static struct scsi_cmnd *
2494mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2495{
2496 unsigned long flags;
2497 struct scsi_cmnd *scmd;
2498
2499 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2500 scmd = ioc->ScsiLookup[i];
2501 ioc->ScsiLookup[i] = NULL;
2502 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2503
2504 return scmd;
2505}
2506
2507/**
2508 * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list
2509 *
2510 * @ioc: Pointer to MPT_ADAPTER structure
2511 * @i: index into the array
2512 * @scmd: scsi_cmnd pointer
2513 *
2514 **/
2515static void
2516mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2517{
2518 unsigned long flags;
2519
2520 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2521 ioc->ScsiLookup[i] = scmd;
2522 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2523}
2524
2525/**
2526 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2527 * @ioc: Pointer to MPT_ADAPTER structure
2528 * @sc: scsi_cmnd pointer
2529 */
2530static int
2531SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2532{
2533 unsigned long flags;
2534 int i, index=-1;
2535
2536 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2537 for (i = 0; i < ioc->req_depth; i++) {
2538 if (ioc->ScsiLookup[i] == sc) {
2539 index = i;
2540 goto out;
2541 }
2542 }
2543
2544 out:
2545 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2546 return index;
2547}
2548
2549/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2550int
2551mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2552{
2553 MPT_SCSI_HOST *hd;
2554
2555 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2556 return 0;
2557
2558 hd = shost_priv(ioc->sh);
2559 switch (reset_phase) {
2560 case MPT_IOC_SETUP_RESET:
2561 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2562 "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
2563 break;
2564 case MPT_IOC_PRE_RESET:
2565 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2566 "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
2567 mptscsih_flush_running_cmds(hd);
2568 break;
2569 case MPT_IOC_POST_RESET:
2570 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2571 "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
2572 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) {
2573 ioc->internal_cmds.status |=
2574 MPT_MGMT_STATUS_DID_IOCRESET;
2575 complete(&ioc->internal_cmds.done);
2576 }
2577 break;
2578 default:
2579 break;
2580 }
2581 return 1; /* currently means nothing really */
2582}
2583
2584/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2585int
2586mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2587{
2588 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2589
2590 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2591 "MPT event (=%02Xh) routed to SCSI host driver!\n",
2592 ioc->name, event));
2593
2594 if ((event == MPI_EVENT_IOC_BUS_RESET ||
2595 event == MPI_EVENT_EXT_BUS_RESET) &&
2596 (ioc->bus_type == SPI) && (ioc->soft_resets < -1))
2597 ioc->soft_resets++;
2598
2599 return 1; /* currently means nothing really */
2600}
2601
2602/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2603/*
2604 * Bus Scan and Domain Validation functionality ...
2605 */
2606
2607/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2608/*
2609 * mptscsih_scandv_complete - Scan and DV callback routine registered
2610 * to Fustion MPT (base) driver.
2611 *
2612 * @ioc: Pointer to MPT_ADAPTER structure
2613 * @mf: Pointer to original MPT request frame
2614 * @mr: Pointer to MPT reply frame (NULL if TurboReply)
2615 *
2616 * This routine is called from mpt.c::mpt_interrupt() at the completion
2617 * of any SCSI IO request.
2618 * This routine is registered with the Fusion MPT (base) driver at driver
2619 * load/init time via the mpt_register() API call.
2620 *
2621 * Returns 1 indicating alloc'd request frame ptr should be freed.
2622 *
2623 * Remark: Sets a completion code and (possibly) saves sense data
2624 * in the IOC member localReply structure.
2625 * Used ONLY for DV and other internal commands.
2626 */
2627int
2628mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2629 MPT_FRAME_HDR *reply)
2630{
2631 SCSIIORequest_t *pReq;
2632 SCSIIOReply_t *pReply;
2633 u8 cmd;
2634 u16 req_idx;
2635 u8 *sense_data;
2636 int sz;
2637
2638 ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2639 ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD;
2640 if (!reply)
2641 goto out;
2642
2643 pReply = (SCSIIOReply_t *) reply;
2644 pReq = (SCSIIORequest_t *) req;
2645 ioc->internal_cmds.completion_code =
2646 mptscsih_get_completion_code(ioc, req, reply);
2647 ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2648 memcpy(ioc->internal_cmds.reply, reply,
2649 min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength));
2650 cmd = reply->u.hdr.Function;
2651 if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
2652 (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) &&
2653 (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
2654 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
2655 sense_data = ((u8 *)ioc->sense_buf_pool +
2656 (req_idx * MPT_SENSE_BUFFER_ALLOC));
2657 sz = min_t(int, pReq->SenseBufferLength,
2658 MPT_SENSE_BUFFER_ALLOC);
2659 memcpy(ioc->internal_cmds.sense, sense_data, sz);
2660 }
2661 out:
2662 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING))
2663 return 0;
2664 ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2665 complete(&ioc->internal_cmds.done);
2666 return 1;
2667}
2668
2669
2670/**
2671 * mptscsih_get_completion_code - get completion code from MPT request
2672 * @ioc: Pointer to MPT_ADAPTER structure
2673 * @req: Pointer to original MPT request frame
2674 * @reply: Pointer to MPT reply frame (NULL if TurboReply)
2675 *
2676 **/
2677static int
2678mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2679 MPT_FRAME_HDR *reply)
2680{
2681 SCSIIOReply_t *pReply;
2682 MpiRaidActionReply_t *pr;
2683 u8 scsi_status;
2684 u16 status;
2685 int completion_code;
2686
2687 pReply = (SCSIIOReply_t *)reply;
2688 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2689 scsi_status = pReply->SCSIStatus;
2690
2691 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2692 "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh,"
2693 "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState,
2694 scsi_status, le32_to_cpu(pReply->IOCLogInfo)));
2695
2696 switch (status) {
2697
2698 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
2699 completion_code = MPT_SCANDV_SELECTION_TIMEOUT;
2700 break;
2701
2702 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
2703 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
2704 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
2705 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
2706 completion_code = MPT_SCANDV_DID_RESET;
2707 break;
2708
2709 case MPI_IOCSTATUS_BUSY:
2710 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
2711 completion_code = MPT_SCANDV_BUSY;
2712 break;
2713
2714 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
2715 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
2716 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
2717 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2718 completion_code = MPT_SCANDV_GOOD;
2719 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2720 pr = (MpiRaidActionReply_t *)reply;
2721 if (le16_to_cpu(pr->ActionStatus) ==
2722 MPI_RAID_ACTION_ASTATUS_SUCCESS)
2723 completion_code = MPT_SCANDV_GOOD;
2724 else
2725 completion_code = MPT_SCANDV_SOME_ERROR;
2726 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)
2727 completion_code = MPT_SCANDV_SENSE;
2728 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2729 if (req->u.scsireq.CDB[0] == INQUIRY)
2730 completion_code = MPT_SCANDV_ISSUE_SENSE;
2731 else
2732 completion_code = MPT_SCANDV_DID_RESET;
2733 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2734 completion_code = MPT_SCANDV_DID_RESET;
2735 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2736 completion_code = MPT_SCANDV_DID_RESET;
2737 else if (scsi_status == MPI_SCSI_STATUS_BUSY)
2738 completion_code = MPT_SCANDV_BUSY;
2739 else
2740 completion_code = MPT_SCANDV_GOOD;
2741 break;
2742
2743 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
2744 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2745 completion_code = MPT_SCANDV_DID_RESET;
2746 else
2747 completion_code = MPT_SCANDV_SOME_ERROR;
2748 break;
2749 default:
2750 completion_code = MPT_SCANDV_SOME_ERROR;
2751 break;
2752
2753 } /* switch(status) */
2754
2755 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2756 " completionCode set to %08xh\n", ioc->name, completion_code));
2757 return completion_code;
2758}
2759
2760/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2761/**
2762 * mptscsih_do_cmd - Do internal command.
2763 * @hd: MPT_SCSI_HOST pointer
2764 * @io: INTERNAL_CMD pointer.
2765 *
2766 * Issue the specified internally generated command and do command
2767 * specific cleanup. For bus scan / DV only.
2768 * NOTES: If command is Inquiry and status is good,
2769 * initialize a target structure, save the data
2770 *
2771 * Remark: Single threaded access only.
2772 *
2773 * Return:
2774 * < 0 if an illegal command or no resources
2775 *
2776 * 0 if good
2777 *
2778 * > 0 if command complete but some type of completion error.
2779 */
2780static int
2781mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2782{
2783 MPT_FRAME_HDR *mf;
2784 SCSIIORequest_t *pScsiReq;
2785 int my_idx, ii, dir;
2786 int timeout;
2787 char cmdLen;
2788 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2789 u8 cmd = io->cmd;
2790 MPT_ADAPTER *ioc = hd->ioc;
2791 int ret = 0;
2792 unsigned long timeleft;
2793 unsigned long flags;
2794
2795 /* don't send internal command during diag reset */
2796 spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
2797 if (ioc->ioc_reset_in_progress) {
2798 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2799 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2800 "%s: busy with host reset\n", ioc->name, __func__));
2801 return MPT_SCANDV_BUSY;
2802 }
2803 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2804
2805 mutex_lock(&ioc->internal_cmds.mutex);
2806
2807 /* Set command specific information
2808 */
2809 switch (cmd) {
2810 case INQUIRY:
2811 cmdLen = 6;
2812 dir = MPI_SCSIIO_CONTROL_READ;
2813 CDB[0] = cmd;
2814 CDB[4] = io->size;
2815 timeout = 10;
2816 break;
2817
2818 case TEST_UNIT_READY:
2819 cmdLen = 6;
2820 dir = MPI_SCSIIO_CONTROL_READ;
2821 timeout = 10;
2822 break;
2823
2824 case START_STOP:
2825 cmdLen = 6;
2826 dir = MPI_SCSIIO_CONTROL_READ;
2827 CDB[0] = cmd;
2828 CDB[4] = 1; /*Spin up the disk */
2829 timeout = 15;
2830 break;
2831
2832 case REQUEST_SENSE:
2833 cmdLen = 6;
2834 CDB[0] = cmd;
2835 CDB[4] = io->size;
2836 dir = MPI_SCSIIO_CONTROL_READ;
2837 timeout = 10;
2838 break;
2839
2840 case READ_BUFFER:
2841 cmdLen = 10;
2842 dir = MPI_SCSIIO_CONTROL_READ;
2843 CDB[0] = cmd;
2844 if (io->flags & MPT_ICFLAG_ECHO) {
2845 CDB[1] = 0x0A;
2846 } else {
2847 CDB[1] = 0x02;
2848 }
2849
2850 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2851 CDB[1] |= 0x01;
2852 }
2853 CDB[6] = (io->size >> 16) & 0xFF;
2854 CDB[7] = (io->size >> 8) & 0xFF;
2855 CDB[8] = io->size & 0xFF;
2856 timeout = 10;
2857 break;
2858
2859 case WRITE_BUFFER:
2860 cmdLen = 10;
2861 dir = MPI_SCSIIO_CONTROL_WRITE;
2862 CDB[0] = cmd;
2863 if (io->flags & MPT_ICFLAG_ECHO) {
2864 CDB[1] = 0x0A;
2865 } else {
2866 CDB[1] = 0x02;
2867 }
2868 CDB[6] = (io->size >> 16) & 0xFF;
2869 CDB[7] = (io->size >> 8) & 0xFF;
2870 CDB[8] = io->size & 0xFF;
2871 timeout = 10;
2872 break;
2873
2874 case RESERVE:
2875 cmdLen = 6;
2876 dir = MPI_SCSIIO_CONTROL_READ;
2877 CDB[0] = cmd;
2878 timeout = 10;
2879 break;
2880
2881 case RELEASE:
2882 cmdLen = 6;
2883 dir = MPI_SCSIIO_CONTROL_READ;
2884 CDB[0] = cmd;
2885 timeout = 10;
2886 break;
2887
2888 case SYNCHRONIZE_CACHE:
2889 cmdLen = 10;
2890 dir = MPI_SCSIIO_CONTROL_READ;
2891 CDB[0] = cmd;
2892// CDB[1] = 0x02; /* set immediate bit */
2893 timeout = 10;
2894 break;
2895
2896 default:
2897 /* Error Case */
2898 ret = -EFAULT;
2899 goto out;
2900 }
2901
2902 /* Get and Populate a free Frame
2903 * MsgContext set in mpt_get_msg_frame call
2904 */
2905 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
2906 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n",
2907 ioc->name, __func__));
2908 ret = MPT_SCANDV_BUSY;
2909 goto out;
2910 }
2911
2912 pScsiReq = (SCSIIORequest_t *) mf;
2913
2914 /* Get the request index */
2915 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2916 ADD_INDEX_LOG(my_idx); /* for debug */
2917
2918 if (io->flags & MPT_ICFLAG_PHYS_DISK) {
2919 pScsiReq->TargetID = io->physDiskNum;
2920 pScsiReq->Bus = 0;
2921 pScsiReq->ChainOffset = 0;
2922 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2923 } else {
2924 pScsiReq->TargetID = io->id;
2925 pScsiReq->Bus = io->channel;
2926 pScsiReq->ChainOffset = 0;
2927 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2928 }
2929
2930 pScsiReq->CDBLength = cmdLen;
2931 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
2932
2933 pScsiReq->Reserved = 0;
2934
2935 pScsiReq->MsgFlags = mpt_msg_flags(ioc);
2936 /* MsgContext set in mpt_get_msg_fram call */
2937
2938 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
2939
2940 if (io->flags & MPT_ICFLAG_TAGGED_CMD)
2941 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
2942 else
2943 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2944
2945 if (cmd == REQUEST_SENSE) {
2946 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2947 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2948 "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd));
2949 }
2950
2951 for (ii = 0; ii < 16; ii++)
2952 pScsiReq->CDB[ii] = CDB[ii];
2953
2954 pScsiReq->DataLength = cpu_to_le32(io->size);
2955 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
2956 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
2957
2958 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2959 "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%llu\n",
2960 ioc->name, __func__, cmd, io->channel, io->id, io->lun));
2961
2962 if (dir == MPI_SCSIIO_CONTROL_READ)
2963 ioc->add_sge((char *) &pScsiReq->SGL,
2964 MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma);
2965 else
2966 ioc->add_sge((char *) &pScsiReq->SGL,
2967 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma);
2968
2969 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
2970 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
2971 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done,
2972 timeout*HZ);
2973 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2974 ret = MPT_SCANDV_DID_RESET;
2975 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2976 "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__,
2977 cmd));
2978 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2979 mpt_free_msg_frame(ioc, mf);
2980 goto out;
2981 }
2982 if (!timeleft) {
2983 printk(MYIOC_s_WARN_FMT
2984 "Issuing Reset from %s!! doorbell=0x%08xh"
2985 " cmd=0x%02x\n",
2986 ioc->name, __func__, mpt_GetIocState(ioc, 0),
2987 cmd);
2988 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
2989 mpt_free_msg_frame(ioc, mf);
2990 }
2991 goto out;
2992 }
2993
2994 ret = ioc->internal_cmds.completion_code;
2995 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n",
2996 ioc->name, __func__, ret));
2997
2998 out:
2999 CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
3000 mutex_unlock(&ioc->internal_cmds.mutex);
3001 return ret;
3002}
3003
3004/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3005/**
3006 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3007 * @hd: Pointer to a SCSI HOST structure
3008 * @vdevice: virtual target device
3009 *
3010 * Uses the ISR, but with special processing.
3011 * MUST be single-threaded.
3012 *
3013 */
3014static void
3015mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3016{
3017 INTERNAL_CMD iocmd;
3018
3019 /* Ignore hidden raid components, this is handled when the command
3020 * is sent to the volume
3021 */
3022 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3023 return;
3024
3025 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3026 !vdevice->configured_lun)
3027 return;
3028
3029 /* Following parameters will not change
3030 * in this routine.
3031 */
3032 iocmd.cmd = SYNCHRONIZE_CACHE;
3033 iocmd.flags = 0;
3034 iocmd.physDiskNum = -1;
3035 iocmd.data = NULL;
3036 iocmd.data_dma = -1;
3037 iocmd.size = 0;
3038 iocmd.rsvd = iocmd.rsvd2 = 0;
3039 iocmd.channel = vdevice->vtarget->channel;
3040 iocmd.id = vdevice->vtarget->id;
3041 iocmd.lun = vdevice->lun;
3042
3043 mptscsih_do_cmd(hd, &iocmd);
3044}
3045
3046static ssize_t
3047mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3048 char *buf)
3049{
3050 struct Scsi_Host *host = class_to_shost(dev);
3051 MPT_SCSI_HOST *hd = shost_priv(host);
3052 MPT_ADAPTER *ioc = hd->ioc;
3053
3054 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3055 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3056 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3057 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3058 ioc->facts.FWVersion.Word & 0x000000FF);
3059}
3060static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3061
3062static ssize_t
3063mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3064 char *buf)
3065{
3066 struct Scsi_Host *host = class_to_shost(dev);
3067 MPT_SCSI_HOST *hd = shost_priv(host);
3068 MPT_ADAPTER *ioc = hd->ioc;
3069
3070 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3071 (ioc->biosVersion & 0xFF000000) >> 24,
3072 (ioc->biosVersion & 0x00FF0000) >> 16,
3073 (ioc->biosVersion & 0x0000FF00) >> 8,
3074 ioc->biosVersion & 0x000000FF);
3075}
3076static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3077
3078static ssize_t
3079mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3080 char *buf)
3081{
3082 struct Scsi_Host *host = class_to_shost(dev);
3083 MPT_SCSI_HOST *hd = shost_priv(host);
3084 MPT_ADAPTER *ioc = hd->ioc;
3085
3086 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3087}
3088static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3089
3090static ssize_t
3091mptscsih_version_product_show(struct device *dev,
3092 struct device_attribute *attr,
3093char *buf)
3094{
3095 struct Scsi_Host *host = class_to_shost(dev);
3096 MPT_SCSI_HOST *hd = shost_priv(host);
3097 MPT_ADAPTER *ioc = hd->ioc;
3098
3099 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3100}
3101static DEVICE_ATTR(version_product, S_IRUGO,
3102 mptscsih_version_product_show, NULL);
3103
3104static ssize_t
3105mptscsih_version_nvdata_persistent_show(struct device *dev,
3106 struct device_attribute *attr,
3107 char *buf)
3108{
3109 struct Scsi_Host *host = class_to_shost(dev);
3110 MPT_SCSI_HOST *hd = shost_priv(host);
3111 MPT_ADAPTER *ioc = hd->ioc;
3112
3113 return snprintf(buf, PAGE_SIZE, "%02xh\n",
3114 ioc->nvdata_version_persistent);
3115}
3116static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3117 mptscsih_version_nvdata_persistent_show, NULL);
3118
3119static ssize_t
3120mptscsih_version_nvdata_default_show(struct device *dev,
3121 struct device_attribute *attr, char *buf)
3122{
3123 struct Scsi_Host *host = class_to_shost(dev);
3124 MPT_SCSI_HOST *hd = shost_priv(host);
3125 MPT_ADAPTER *ioc = hd->ioc;
3126
3127 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3128}
3129static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3130 mptscsih_version_nvdata_default_show, NULL);
3131
3132static ssize_t
3133mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3134 char *buf)
3135{
3136 struct Scsi_Host *host = class_to_shost(dev);
3137 MPT_SCSI_HOST *hd = shost_priv(host);
3138 MPT_ADAPTER *ioc = hd->ioc;
3139
3140 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3141}
3142static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3143
3144static ssize_t
3145mptscsih_board_assembly_show(struct device *dev,
3146 struct device_attribute *attr, char *buf)
3147{
3148 struct Scsi_Host *host = class_to_shost(dev);
3149 MPT_SCSI_HOST *hd = shost_priv(host);
3150 MPT_ADAPTER *ioc = hd->ioc;
3151
3152 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3153}
3154static DEVICE_ATTR(board_assembly, S_IRUGO,
3155 mptscsih_board_assembly_show, NULL);
3156
3157static ssize_t
3158mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3159 char *buf)
3160{
3161 struct Scsi_Host *host = class_to_shost(dev);
3162 MPT_SCSI_HOST *hd = shost_priv(host);
3163 MPT_ADAPTER *ioc = hd->ioc;
3164
3165 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3166}
3167static DEVICE_ATTR(board_tracer, S_IRUGO,
3168 mptscsih_board_tracer_show, NULL);
3169
3170static ssize_t
3171mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3172 char *buf)
3173{
3174 struct Scsi_Host *host = class_to_shost(dev);
3175 MPT_SCSI_HOST *hd = shost_priv(host);
3176 MPT_ADAPTER *ioc = hd->ioc;
3177
3178 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3179}
3180static DEVICE_ATTR(io_delay, S_IRUGO,
3181 mptscsih_io_delay_show, NULL);
3182
3183static ssize_t
3184mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3185 char *buf)
3186{
3187 struct Scsi_Host *host = class_to_shost(dev);
3188 MPT_SCSI_HOST *hd = shost_priv(host);
3189 MPT_ADAPTER *ioc = hd->ioc;
3190
3191 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3192}
3193static DEVICE_ATTR(device_delay, S_IRUGO,
3194 mptscsih_device_delay_show, NULL);
3195
3196static ssize_t
3197mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3198 char *buf)
3199{
3200 struct Scsi_Host *host = class_to_shost(dev);
3201 MPT_SCSI_HOST *hd = shost_priv(host);
3202 MPT_ADAPTER *ioc = hd->ioc;
3203
3204 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3205}
3206static ssize_t
3207mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3208 const char *buf, size_t count)
3209{
3210 struct Scsi_Host *host = class_to_shost(dev);
3211 MPT_SCSI_HOST *hd = shost_priv(host);
3212 MPT_ADAPTER *ioc = hd->ioc;
3213 int val = 0;
3214
3215 if (sscanf(buf, "%x", &val) != 1)
3216 return -EINVAL;
3217
3218 ioc->debug_level = val;
3219 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3220 ioc->name, ioc->debug_level);
3221 return strlen(buf);
3222}
3223static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3224 mptscsih_debug_level_show, mptscsih_debug_level_store);
3225
3226struct device_attribute *mptscsih_host_attrs[] = {
3227 &dev_attr_version_fw,
3228 &dev_attr_version_bios,
3229 &dev_attr_version_mpi,
3230 &dev_attr_version_product,
3231 &dev_attr_version_nvdata_persistent,
3232 &dev_attr_version_nvdata_default,
3233 &dev_attr_board_name,
3234 &dev_attr_board_assembly,
3235 &dev_attr_board_tracer,
3236 &dev_attr_io_delay,
3237 &dev_attr_device_delay,
3238 &dev_attr_debug_level,
3239 NULL,
3240};
3241
3242EXPORT_SYMBOL(mptscsih_host_attrs);
3243
3244EXPORT_SYMBOL(mptscsih_remove);
3245EXPORT_SYMBOL(mptscsih_shutdown);
3246#ifdef CONFIG_PM
3247EXPORT_SYMBOL(mptscsih_suspend);
3248EXPORT_SYMBOL(mptscsih_resume);
3249#endif
3250EXPORT_SYMBOL(mptscsih_show_info);
3251EXPORT_SYMBOL(mptscsih_info);
3252EXPORT_SYMBOL(mptscsih_qcmd);
3253EXPORT_SYMBOL(mptscsih_slave_destroy);
3254EXPORT_SYMBOL(mptscsih_slave_configure);
3255EXPORT_SYMBOL(mptscsih_abort);
3256EXPORT_SYMBOL(mptscsih_dev_reset);
3257EXPORT_SYMBOL(mptscsih_bus_reset);
3258EXPORT_SYMBOL(mptscsih_host_reset);
3259EXPORT_SYMBOL(mptscsih_bios_param);
3260EXPORT_SYMBOL(mptscsih_io_done);
3261EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3262EXPORT_SYMBOL(mptscsih_scandv_complete);
3263EXPORT_SYMBOL(mptscsih_event_process);
3264EXPORT_SYMBOL(mptscsih_ioc_reset);
3265EXPORT_SYMBOL(mptscsih_change_queue_depth);
3266
3267/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/