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