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docbook: fix fusion source files
[pv_ops_mirror.git] / drivers / message / fusion / mptscsih.c
blob0c252f60c4c1ba2c5ee4e7012b21dc6dddf36129
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) 1999-2007 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
8 *
9 */
10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
11 /*
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; version 2 of the License.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 NO WARRANTY
22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
26 solely responsible for determining the appropriateness of using and
27 distributing the Program and assumes all risks associated with its
28 exercise of rights under this Agreement, including but not limited to
29 the risks and costs of program errors, damage to or loss of data,
30 programs or equipment, and unavailability or interruption of operations.
31
32 DISCLAIMER OF LIABILITY
33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40
41 You should have received a copy of the GNU General Public License
42 along with this program; if not, write to the Free Software
43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
44 */
45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
46
47 #include <linux/module.h>
48 #include <linux/kernel.h>
49 #include <linux/init.h>
50 #include <linux/errno.h>
51 #include <linux/kdev_t.h>
52 #include <linux/blkdev.h>
53 #include <linux/delay.h> /* for mdelay */
54 #include <linux/interrupt.h> /* needed for in_interrupt() proto */
55 #include <linux/reboot.h> /* notifier code */
56 #include <linux/workqueue.h>
57
58 #include <scsi/scsi.h>
59 #include <scsi/scsi_cmnd.h>
60 #include <scsi/scsi_device.h>
61 #include <scsi/scsi_host.h>
62 #include <scsi/scsi_tcq.h>
63 #include <scsi/scsi_dbg.h>
64
65 #include "mptbase.h"
66 #include "mptscsih.h"
67 #include "lsi/mpi_log_sas.h"
68
69 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
70 #define my_NAME "Fusion MPT SCSI Host driver"
71 #define my_VERSION MPT_LINUX_VERSION_COMMON
72 #define MYNAM "mptscsih"
73
74 MODULE_AUTHOR(MODULEAUTHOR);
75 MODULE_DESCRIPTION(my_NAME);
76 MODULE_LICENSE("GPL");
77 MODULE_VERSION(my_VERSION);
78
79 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
80 /*
81 * Other private/forward protos...
82 */
83 static struct scsi_cmnd * mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
84 static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i);
85 static void mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd);
86 static int SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd);
87 int mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
88 static void mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
89 int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
90
91 static int mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
92 SCSIIORequest_t *pReq, int req_idx);
93 static void mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
94 static void mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
95 static int mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd);
96 static int mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout );
97
98 static int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout);
99
100 int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
101 int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
102
103 int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
104 static int mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
105 static void mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
106
107 void mptscsih_remove(struct pci_dev *);
108 void mptscsih_shutdown(struct pci_dev *);
109 #ifdef CONFIG_PM
110 int mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
111 int mptscsih_resume(struct pci_dev *pdev);
112 #endif
113
114 #define SNS_LEN(scp) SCSI_SENSE_BUFFERSIZE
115
116 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
117 /**
118 * mptscsih_add_sge - Place a simple SGE at address pAddr.
119 * @pAddr: virtual address for SGE
120 * @flagslength: SGE flags and data transfer length
121 * @dma_addr: Physical address
122 *
123 * This routine places a MPT request frame back on the MPT adapter's
124 * FreeQ.
125 */
126 static inline void
127 mptscsih_add_sge(char *pAddr, u32 flagslength, dma_addr_t dma_addr)
128 {
129 if (sizeof(dma_addr_t) == sizeof(u64)) {
130 SGESimple64_t *pSge = (SGESimple64_t *) pAddr;
131 u32 tmp = dma_addr & 0xFFFFFFFF;
132
133 pSge->FlagsLength = cpu_to_le32(flagslength);
134 pSge->Address.Low = cpu_to_le32(tmp);
135 tmp = (u32) ((u64)dma_addr >> 32);
136 pSge->Address.High = cpu_to_le32(tmp);
137
138 } else {
139 SGESimple32_t *pSge = (SGESimple32_t *) pAddr;
140 pSge->FlagsLength = cpu_to_le32(flagslength);
141 pSge->Address = cpu_to_le32(dma_addr);
142 }
143 } /* mptscsih_add_sge() */
144
145 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
146 /**
147 * mptscsih_add_chain - Place a chain SGE at address pAddr.
148 * @pAddr: virtual address for SGE
149 * @next: nextChainOffset value (u32's)
150 * @length: length of next SGL segment
151 * @dma_addr: Physical address
152 *
153 * This routine places a MPT request frame back on the MPT adapter's
154 * FreeQ.
155 */
156 static inline void
157 mptscsih_add_chain(char *pAddr, u8 next, u16 length, dma_addr_t dma_addr)
158 {
159 if (sizeof(dma_addr_t) == sizeof(u64)) {
160 SGEChain64_t *pChain = (SGEChain64_t *) pAddr;
161 u32 tmp = dma_addr & 0xFFFFFFFF;
162
163 pChain->Length = cpu_to_le16(length);
164 pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT | mpt_addr_size();
165
166 pChain->NextChainOffset = next;
167
168 pChain->Address.Low = cpu_to_le32(tmp);
169 tmp = (u32) ((u64)dma_addr >> 32);
170 pChain->Address.High = cpu_to_le32(tmp);
171 } else {
172 SGEChain32_t *pChain = (SGEChain32_t *) pAddr;
173 pChain->Length = cpu_to_le16(length);
174 pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT | mpt_addr_size();
175 pChain->NextChainOffset = next;
176 pChain->Address = cpu_to_le32(dma_addr);
177 }
178 } /* mptscsih_add_chain() */
179
180 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
181 /*
182 * mptscsih_getFreeChainBuffer - Function to get a free chain
183 * from the MPT_SCSI_HOST FreeChainQ.
184 * @ioc: Pointer to MPT_ADAPTER structure
185 * @req_idx: Index of the SCSI IO request frame. (output)
186 *
187 * return SUCCESS or FAILED
188 */
189 static inline int
190 mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
191 {
192 MPT_FRAME_HDR *chainBuf;
193 unsigned long flags;
194 int rc;
195 int chain_idx;
196
197 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n",
198 ioc->name));
199 spin_lock_irqsave(&ioc->FreeQlock, flags);
200 if (!list_empty(&ioc->FreeChainQ)) {
201 int offset;
202
203 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR,
204 u.frame.linkage.list);
205 list_del(&chainBuf->u.frame.linkage.list);
206 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer;
207 chain_idx = offset / ioc->req_sz;
208 rc = SUCCESS;
209 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
210 "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n",
211 ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx));
212 } else {
213 rc = FAILED;
214 chain_idx = MPT_HOST_NO_CHAIN;
215 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n",
216 ioc->name));
217 }
218 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
219
220 *retIndex = chain_idx;
221 return rc;
222 } /* mptscsih_getFreeChainBuffer() */
223
224 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
225 /*
226 * mptscsih_AddSGE - Add a SGE (plus chain buffers) to the
227 * SCSIIORequest_t Message Frame.
228 * @ioc: Pointer to MPT_ADAPTER structure
229 * @SCpnt: Pointer to scsi_cmnd structure
230 * @pReq: Pointer to SCSIIORequest_t structure
231 *
232 * Returns ...
233 */
234 static int
235 mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
236 SCSIIORequest_t *pReq, int req_idx)
237 {
238 char *psge;
239 char *chainSge;
240 struct scatterlist *sg;
241 int frm_sz;
242 int sges_left, sg_done;
243 int chain_idx = MPT_HOST_NO_CHAIN;
244 int sgeOffset;
245 int numSgeSlots, numSgeThisFrame;
246 u32 sgflags, sgdir, thisxfer = 0;
247 int chain_dma_off = 0;
248 int newIndex;
249 int ii;
250 dma_addr_t v2;
251 u32 RequestNB;
252
253 sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
254 if (sgdir == MPI_SCSIIO_CONTROL_WRITE) {
255 sgdir = MPT_TRANSFER_HOST_TO_IOC;
256 } else {
257 sgdir = MPT_TRANSFER_IOC_TO_HOST;
258 }
259
260 psge = (char *) &pReq->SGL;
261 frm_sz = ioc->req_sz;
262
263 /* Map the data portion, if any.
264 * sges_left = 0 if no data transfer.
265 */
266 sges_left = scsi_dma_map(SCpnt);
267 if (sges_left < 0)
268 return FAILED;
269
270 /* Handle the SG case.
271 */
272 sg = scsi_sglist(SCpnt);
273 sg_done = 0;
274 sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION);
275 chainSge = NULL;
276
277 /* Prior to entering this loop - the following must be set
278 * current MF: sgeOffset (bytes)
279 * chainSge (Null if original MF is not a chain buffer)
280 * sg_done (num SGE done for this MF)
281 */
282
283 nextSGEset:
284 numSgeSlots = ((frm_sz - sgeOffset) / (sizeof(u32) + sizeof(dma_addr_t)) );
285 numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
286
287 sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | MPT_SGE_FLAGS_ADDRESSING | sgdir;
288
289 /* Get first (num - 1) SG elements
290 * Skip any SG entries with a length of 0
291 * NOTE: at finish, sg and psge pointed to NEXT data/location positions
292 */
293 for (ii=0; ii < (numSgeThisFrame-1); ii++) {
294 thisxfer = sg_dma_len(sg);
295 if (thisxfer == 0) {
296 sg = sg_next(sg); /* Get next SG element from the OS */
297 sg_done++;
298 continue;
299 }
300
301 v2 = sg_dma_address(sg);
302 mptscsih_add_sge(psge, sgflags | thisxfer, v2);
303
304 sg = sg_next(sg); /* Get next SG element from the OS */
305 psge += (sizeof(u32) + sizeof(dma_addr_t));
306 sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
307 sg_done++;
308 }
309
310 if (numSgeThisFrame == sges_left) {
311 /* Add last element, end of buffer and end of list flags.
312 */
313 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT |
314 MPT_SGE_FLAGS_END_OF_BUFFER |
315 MPT_SGE_FLAGS_END_OF_LIST;
316
317 /* Add last SGE and set termination flags.
318 * Note: Last SGE may have a length of 0 - which should be ok.
319 */
320 thisxfer = sg_dma_len(sg);
321
322 v2 = sg_dma_address(sg);
323 mptscsih_add_sge(psge, sgflags | thisxfer, v2);
324 /*
325 sg = sg_next(sg);
326 psge += (sizeof(u32) + sizeof(dma_addr_t));
327 */
328 sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
329 sg_done++;
330
331 if (chainSge) {
332 /* The current buffer is a chain buffer,
333 * but there is not another one.
334 * Update the chain element
335 * Offset and Length fields.
336 */
337 mptscsih_add_chain((char *)chainSge, 0, sgeOffset, ioc->ChainBufferDMA + chain_dma_off);
338 } else {
339 /* The current buffer is the original MF
340 * and there is no Chain buffer.
341 */
342 pReq->ChainOffset = 0;
343 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03;
344 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
345 "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
346 ioc->RequestNB[req_idx] = RequestNB;
347 }
348 } else {
349 /* At least one chain buffer is needed.
350 * Complete the first MF
351 * - last SGE element, set the LastElement bit
352 * - set ChainOffset (words) for orig MF
353 * (OR finish previous MF chain buffer)
354 * - update MFStructPtr ChainIndex
355 * - Populate chain element
356 * Also
357 * Loop until done.
358 */
359
360 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n",
361 ioc->name, sg_done));
362
363 /* Set LAST_ELEMENT flag for last non-chain element
364 * in the buffer. Since psge points at the NEXT
365 * SGE element, go back one SGE element, update the flags
366 * and reset the pointer. (Note: sgflags & thisxfer are already
367 * set properly).
368 */
369 if (sg_done) {
370 u32 *ptmp = (u32 *) (psge - (sizeof(u32) + sizeof(dma_addr_t)));
371 sgflags = le32_to_cpu(*ptmp);
372 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT;
373 *ptmp = cpu_to_le32(sgflags);
374 }
375
376 if (chainSge) {
377 /* The current buffer is a chain buffer.
378 * chainSge points to the previous Chain Element.
379 * Update its chain element Offset and Length (must
380 * include chain element size) fields.
381 * Old chain element is now complete.
382 */
383 u8 nextChain = (u8) (sgeOffset >> 2);
384 sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
385 mptscsih_add_chain((char *)chainSge, nextChain, sgeOffset, ioc->ChainBufferDMA + chain_dma_off);
386 } else {
387 /* The original MF buffer requires a chain buffer -
388 * set the offset.
389 * Last element in this MF is a chain element.
390 */
391 pReq->ChainOffset = (u8) (sgeOffset >> 2);
392 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03;
393 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
394 ioc->RequestNB[req_idx] = RequestNB;
395 }
396
397 sges_left -= sg_done;
398
399
400 /* NOTE: psge points to the beginning of the chain element
401 * in current buffer. Get a chain buffer.
402 */
403 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
404 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
405 "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
406 ioc->name, pReq->CDB[0], SCpnt));
407 return FAILED;
408 }
409
410 /* Update the tracking arrays.
411 * If chainSge == NULL, update ReqToChain, else ChainToChain
412 */
413 if (chainSge) {
414 ioc->ChainToChain[chain_idx] = newIndex;
415 } else {
416 ioc->ReqToChain[req_idx] = newIndex;
417 }
418 chain_idx = newIndex;
419 chain_dma_off = ioc->req_sz * chain_idx;
420
421 /* Populate the chainSGE for the current buffer.
422 * - Set chain buffer pointer to psge and fill
423 * out the Address and Flags fields.
424 */
425 chainSge = (char *) psge;
426 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Current buff @ %p (index 0x%x)",
427 ioc->name, psge, req_idx));
428
429 /* Start the SGE for the next buffer
430 */
431 psge = (char *) (ioc->ChainBuffer + chain_dma_off);
432 sgeOffset = 0;
433 sg_done = 0;
434
435 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Chain buff @ %p (index 0x%x)\n",
436 ioc->name, psge, chain_idx));
437
438 /* Start the SGE for the next buffer
439 */
440
441 goto nextSGEset;
442 }
443
444 return SUCCESS;
445 } /* mptscsih_AddSGE() */
446
447 static void
448 mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
449 U32 SlotStatus)
450 {
451 MPT_FRAME_HDR *mf;
452 SEPRequest_t *SEPMsg;
453
454 if (ioc->bus_type != SAS)
455 return;
456
457 /* Not supported for hidden raid components
458 */
459 if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
460 return;
461
462 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
463 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
464 ioc->name,__FUNCTION__));
465 return;
466 }
467
468 SEPMsg = (SEPRequest_t *)mf;
469 SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
470 SEPMsg->Bus = vtarget->channel;
471 SEPMsg->TargetID = vtarget->id;
472 SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
473 SEPMsg->SlotStatus = SlotStatus;
474 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
475 "Sending SEP cmd=%x channel=%d id=%d\n",
476 ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
477 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
478 }
479
480 #ifdef CONFIG_FUSION_LOGGING
481 /**
482 * mptscsih_info_scsiio - debug print info on reply frame
483 * @ioc: Pointer to MPT_ADAPTER structure
484 * @sc: original scsi cmnd pointer
485 * @pScsiReply: Pointer to MPT reply frame
486 *
487 * MPT_DEBUG_REPLY needs to be enabled to obtain this info
488 *
489 * Refer to lsi/mpi.h.
490 **/
491 static void
492 mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
493 {
494 char *desc = NULL;
495 char *desc1 = NULL;
496 u16 ioc_status;
497 u8 skey, asc, ascq;
498
499 ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
500
501 switch (ioc_status) {
502
503 case MPI_IOCSTATUS_SUCCESS:
504 desc = "success";
505 break;
506 case MPI_IOCSTATUS_SCSI_INVALID_BUS:
507 desc = "invalid bus";
508 break;
509 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
510 desc = "invalid target_id";
511 break;
512 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
513 desc = "device not there";
514 break;
515 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
516 desc = "data overrun";
517 break;
518 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
519 desc = "data underrun";
520 break;
521 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
522 desc = "I/O data error";
523 break;
524 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
525 desc = "protocol error";
526 break;
527 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
528 desc = "task terminated";
529 break;
530 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
531 desc = "residual mismatch";
532 break;
533 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
534 desc = "task management failed";
535 break;
536 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
537 desc = "IOC terminated";
538 break;
539 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
540 desc = "ext terminated";
541 break;
542 default:
543 desc = "";
544 break;
545 }
546
547 switch (pScsiReply->SCSIStatus)
548 {
549
550 case MPI_SCSI_STATUS_SUCCESS:
551 desc1 = "success";
552 break;
553 case MPI_SCSI_STATUS_CHECK_CONDITION:
554 desc1 = "check condition";
555 break;
556 case MPI_SCSI_STATUS_CONDITION_MET:
557 desc1 = "condition met";
558 break;
559 case MPI_SCSI_STATUS_BUSY:
560 desc1 = "busy";
561 break;
562 case MPI_SCSI_STATUS_INTERMEDIATE:
563 desc1 = "intermediate";
564 break;
565 case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET:
566 desc1 = "intermediate condmet";
567 break;
568 case MPI_SCSI_STATUS_RESERVATION_CONFLICT:
569 desc1 = "reservation conflict";
570 break;
571 case MPI_SCSI_STATUS_COMMAND_TERMINATED:
572 desc1 = "command terminated";
573 break;
574 case MPI_SCSI_STATUS_TASK_SET_FULL:
575 desc1 = "task set full";
576 break;
577 case MPI_SCSI_STATUS_ACA_ACTIVE:
578 desc1 = "aca active";
579 break;
580 case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT:
581 desc1 = "fcpext device logged out";
582 break;
583 case MPI_SCSI_STATUS_FCPEXT_NO_LINK:
584 desc1 = "fcpext no link";
585 break;
586 case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED:
587 desc1 = "fcpext unassigned";
588 break;
589 default:
590 desc1 = "";
591 break;
592 }
593
594 scsi_print_command(sc);
595 printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d\n",
596 ioc->name, pScsiReply->Bus, pScsiReply->TargetID);
597 printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
598 "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
599 scsi_get_resid(sc));
600 printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, "
601 "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag),
602 le32_to_cpu(pScsiReply->TransferCount), sc->result);
603 printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), "
604 "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
605 ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus,
606 pScsiReply->SCSIState);
607
608 if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
609 skey = sc->sense_buffer[2] & 0x0F;
610 asc = sc->sense_buffer[12];
611 ascq = sc->sense_buffer[13];
612
613 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: "
614 "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq);
615 }
616
617 /*
618 * Look for + dump FCP ResponseInfo[]!
619 */
620 if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
621 pScsiReply->ResponseInfo)
622 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n",
623 ioc->name, le32_to_cpu(pScsiReply->ResponseInfo));
624 }
625 #endif
626
627 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
628 /*
629 * mptscsih_io_done - Main SCSI IO callback routine registered to
630 * Fusion MPT (base) driver
631 * @ioc: Pointer to MPT_ADAPTER structure
632 * @mf: Pointer to original MPT request frame
633 * @r: Pointer to MPT reply frame (NULL if TurboReply)
634 *
635 * This routine is called from mpt.c::mpt_interrupt() at the completion
636 * of any SCSI IO request.
637 * This routine is registered with the Fusion MPT (base) driver at driver
638 * load/init time via the mpt_register() API call.
639 *
640 * Returns 1 indicating alloc'd request frame ptr should be freed.
641 */
642 int
643 mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
644 {
645 struct scsi_cmnd *sc;
646 MPT_SCSI_HOST *hd;
647 SCSIIORequest_t *pScsiReq;
648 SCSIIOReply_t *pScsiReply;
649 u16 req_idx, req_idx_MR;
650 VirtDevice *vdevice;
651 VirtTarget *vtarget;
652
653 hd = shost_priv(ioc->sh);
654 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
655 req_idx_MR = (mr != NULL) ?
656 le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
657 if ((req_idx != req_idx_MR) ||
658 (mf->u.frame.linkage.arg1 == 0xdeadbeaf)) {
659 printk(MYIOC_s_ERR_FMT "Received a mf that was already freed\n",
660 ioc->name);
661 printk (MYIOC_s_ERR_FMT
662 "req_idx=%x req_idx_MR=%x mf=%p mr=%p sc=%p\n",
663 ioc->name, req_idx, req_idx_MR, mf, mr,
664 mptscsih_get_scsi_lookup(ioc, req_idx_MR));
665 return 0;
666 }
667
668 sc = mptscsih_getclear_scsi_lookup(ioc, req_idx);
669 if (sc == NULL) {
670 MPIHeader_t *hdr = (MPIHeader_t *)mf;
671
672 /* Remark: writeSDP1 will use the ScsiDoneCtx
673 * If a SCSI I/O cmd, device disabled by OS and
674 * completion done. Cannot touch sc struct. Just free mem.
675 */
676 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST)
677 printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n",
678 ioc->name);
679
680 mptscsih_freeChainBuffers(ioc, req_idx);
681 return 1;
682 }
683
684 if ((unsigned char *)mf != sc->host_scribble) {
685 mptscsih_freeChainBuffers(ioc, req_idx);
686 return 1;
687 }
688
689 sc->host_scribble = NULL;
690 sc->result = DID_OK << 16; /* Set default reply as OK */
691 pScsiReq = (SCSIIORequest_t *) mf;
692 pScsiReply = (SCSIIOReply_t *) mr;
693
694 if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
695 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
696 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n",
697 ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag));
698 }else{
699 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
700 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
701 ioc->name, mf, mr, sc, req_idx));
702 }
703
704 if (pScsiReply == NULL) {
705 /* special context reply handling */
706 ;
707 } else {
708 u32 xfer_cnt;
709 u16 status;
710 u8 scsi_state, scsi_status;
711 u32 log_info;
712
713 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
714 scsi_state = pScsiReply->SCSIState;
715 scsi_status = pScsiReply->SCSIStatus;
716 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
717 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
718 log_info = le32_to_cpu(pScsiReply->IOCLogInfo);
719
720 /*
721 * if we get a data underrun indication, yet no data was
722 * transferred and the SCSI status indicates that the
723 * command was never started, change the data underrun
724 * to success
725 */
726 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
727 (scsi_status == MPI_SCSI_STATUS_BUSY ||
728 scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT ||
729 scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) {
730 status = MPI_IOCSTATUS_SUCCESS;
731 }
732
733 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
734 mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);
735
736 /*
737 * Look for + dump FCP ResponseInfo[]!
738 */
739 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
740 pScsiReply->ResponseInfo) {
741 printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%d] "
742 "FCP_ResponseInfo=%08xh\n", ioc->name,
743 sc->device->host->host_no, sc->device->channel,
744 sc->device->id, sc->device->lun,
745 le32_to_cpu(pScsiReply->ResponseInfo));
746 }
747
748 switch(status) {
749 case MPI_IOCSTATUS_BUSY: /* 0x0002 */
750 /* CHECKME!
751 * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry)
752 * But not: DID_BUS_BUSY lest one risk
753 * killing interrupt handler:-(
754 */
755 sc->result = SAM_STAT_BUSY;
756 break;
757
758 case MPI_IOCSTATUS_SCSI_INVALID_BUS: /* 0x0041 */
759 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID: /* 0x0042 */
760 sc->result = DID_BAD_TARGET << 16;
761 break;
762
763 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
764 /* Spoof to SCSI Selection Timeout! */
765 if (ioc->bus_type != FC)
766 sc->result = DID_NO_CONNECT << 16;
767 /* else fibre, just stall until rescan event */
768 else
769 sc->result = DID_REQUEUE << 16;
770
771 if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
772 hd->sel_timeout[pScsiReq->TargetID]++;
773
774 vdevice = sc->device->hostdata;
775 if (!vdevice)
776 break;
777 vtarget = vdevice->vtarget;
778 if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) {
779 mptscsih_issue_sep_command(ioc, vtarget,
780 MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED);
781 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON;
782 }
783 break;
784
785 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
786 if ( ioc->bus_type == SAS ) {
787 u16 ioc_status = le16_to_cpu(pScsiReply->IOCStatus);
788 if (ioc_status & MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) {
789 if ((log_info & SAS_LOGINFO_MASK)
790 == SAS_LOGINFO_NEXUS_LOSS) {
791 sc->result = (DID_BUS_BUSY << 16);
792 break;
793 }
794 }
795 } else if (ioc->bus_type == FC) {
796 /*
797 * The FC IOC may kill a request for variety of
798 * reasons, some of which may be recovered by a
799 * retry, some which are unlikely to be
800 * recovered. Return DID_ERROR instead of
801 * DID_RESET to permit retry of the command,
802 * just not an infinite number of them
803 */
804 sc->result = DID_ERROR << 16;
805 break;
806 }
807
808 /*
809 * Allow non-SAS & non-NEXUS_LOSS to drop into below code
810 */
811
812 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
813 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
814 /* Linux handles an unsolicited DID_RESET better
815 * than an unsolicited DID_ABORT.
816 */
817 sc->result = DID_RESET << 16;
818
819 break;
820
821 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: /* 0x0049 */
822 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
823 if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
824 sc->result=DID_SOFT_ERROR << 16;
825 else /* Sufficient data transfer occurred */
826 sc->result = (DID_OK << 16) | scsi_status;
827 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
828 "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
829 ioc->name, sc->result, sc->device->channel, sc->device->id));
830 break;
831
832 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
833 /*
834 * Do upfront check for valid SenseData and give it
835 * precedence!
836 */
837 sc->result = (DID_OK << 16) | scsi_status;
838 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) {
839 /* Have already saved the status and sense data
840 */
841 ;
842 } else {
843 if (xfer_cnt < sc->underflow) {
844 if (scsi_status == SAM_STAT_BUSY)
845 sc->result = SAM_STAT_BUSY;
846 else
847 sc->result = DID_SOFT_ERROR << 16;
848 }
849 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
850 /* What to do?
851 */
852 sc->result = DID_SOFT_ERROR << 16;
853 }
854 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
855 /* Not real sure here either... */
856 sc->result = DID_RESET << 16;
857 }
858 }
859
860
861 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
862 " sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
863 ioc->name, sc->underflow));
864 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
865 " ActBytesXferd=%02xh\n", ioc->name, xfer_cnt));
866
867 /* Report Queue Full
868 */
869 if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
870 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
871
872 break;
873
874 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: /* 0x0044 */
875 scsi_set_resid(sc, 0);
876 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
877 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
878 sc->result = (DID_OK << 16) | scsi_status;
879 if (scsi_state == 0) {
880 ;
881 } else if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) {
882 /*
883 * If running against circa 200003dd 909 MPT f/w,
884 * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
885 * (QUEUE_FULL) returned from device! --> get 0x0000?128
886 * and with SenseBytes set to 0.
887 */
888 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
889 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
890
891 }
892 else if (scsi_state &
893 (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
894 ) {
895 /*
896 * What to do?
897 */
898 sc->result = DID_SOFT_ERROR << 16;
899 }
900 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
901 /* Not real sure here either... */
902 sc->result = DID_RESET << 16;
903 }
904 else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
905 /* Device Inq. data indicates that it supports
906 * QTags, but rejects QTag messages.
907 * This command completed OK.
908 *
909 * Not real sure here either so do nothing... */
910 }
911
912 if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
913 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
914
915 /* Add handling of:
916 * Reservation Conflict, Busy,
917 * Command Terminated, CHECK
918 */
919 break;
920
921 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
922 sc->result = DID_SOFT_ERROR << 16;
923 break;
924
925 case MPI_IOCSTATUS_INVALID_FUNCTION: /* 0x0001 */
926 case MPI_IOCSTATUS_INVALID_SGL: /* 0x0003 */
927 case MPI_IOCSTATUS_INTERNAL_ERROR: /* 0x0004 */
928 case MPI_IOCSTATUS_RESERVED: /* 0x0005 */
929 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES: /* 0x0006 */
930 case MPI_IOCSTATUS_INVALID_FIELD: /* 0x0007 */
931 case MPI_IOCSTATUS_INVALID_STATE: /* 0x0008 */
932 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
933 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED: /* 0x004A */
934 default:
935 /*
936 * What to do?
937 */
938 sc->result = DID_SOFT_ERROR << 16;
939 break;
940
941 } /* switch(status) */
942
943 #ifdef CONFIG_FUSION_LOGGING
944 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
945 mptscsih_info_scsiio(ioc, sc, pScsiReply);
946 #endif
947
948 } /* end of address reply case */
949
950 /* Unmap the DMA buffers, if any. */
951 scsi_dma_unmap(sc);
952
953 sc->scsi_done(sc); /* Issue the command callback */
954
955 /* Free Chain buffers */
956 mptscsih_freeChainBuffers(ioc, req_idx);
957 return 1;
958 }
959
960 /*
961 * mptscsih_flush_running_cmds - For each command found, search
962 * Scsi_Host instance taskQ and reply to OS.
963 * Called only if recovering from a FW reload.
964 * @hd: Pointer to a SCSI HOST structure
965 *
966 * Returns: None.
967 *
968 * Must be called while new I/Os are being queued.
969 */
970 static void
971 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
972 {
973 MPT_ADAPTER *ioc = hd->ioc;
974 struct scsi_cmnd *sc;
975 SCSIIORequest_t *mf = NULL;
976 int ii;
977 int channel, id;
978
979 for (ii= 0; ii < ioc->req_depth; ii++) {
980 sc = mptscsih_getclear_scsi_lookup(ioc, ii);
981 if (!sc)
982 continue;
983 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
984 if (!mf)
985 continue;
986 channel = mf->Bus;
987 id = mf->TargetID;
988 mptscsih_freeChainBuffers(ioc, ii);
989 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
990 if ((unsigned char *)mf != sc->host_scribble)
991 continue;
992 scsi_dma_unmap(sc);
993 sc->result = DID_RESET << 16;
994 sc->host_scribble = NULL;
995 sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
996 "completing cmds: fw_channel %d, fw_id %d, sc=%p,"
997 " mf = %p, idx=%x\n", ioc->name, channel, id, sc, mf, ii);
998 sc->scsi_done(sc);
999 }
1000 }
1001
1002 /*
1003 * mptscsih_search_running_cmds - Delete any commands associated
1004 * with the specified target and lun. Function called only
1005 * when a lun is disable by mid-layer.
1006 * Do NOT access the referenced scsi_cmnd structure or
1007 * members. Will cause either a paging or NULL ptr error.
1008 * (BUT, BUT, BUT, the code does reference it! - mdr)
1009 * @hd: Pointer to a SCSI HOST structure
1010 * @vdevice: per device private data
1011 *
1012 * Returns: None.
1013 *
1014 * Called from slave_destroy.
1015 */
1016 static void
1017 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
1018 {
1019 SCSIIORequest_t *mf = NULL;
1020 int ii;
1021 struct scsi_cmnd *sc;
1022 struct scsi_lun lun;
1023 MPT_ADAPTER *ioc = hd->ioc;
1024 unsigned long flags;
1025
1026 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1027 for (ii = 0; ii < ioc->req_depth; ii++) {
1028 if ((sc = ioc->ScsiLookup[ii]) != NULL) {
1029
1030 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1031 if (mf == NULL)
1032 continue;
1033 /* If the device is a hidden raid component, then its
1034 * expected that the mf->function will be RAID_SCSI_IO
1035 */
1036 if (vdevice->vtarget->tflags &
1037 MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
1038 MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
1039 continue;
1040
1041 int_to_scsilun(vdevice->lun, &lun);
1042 if ((mf->Bus != vdevice->vtarget->channel) ||
1043 (mf->TargetID != vdevice->vtarget->id) ||
1044 memcmp(lun.scsi_lun, mf->LUN, 8))
1045 continue;
1046
1047 if ((unsigned char *)mf != sc->host_scribble)
1048 continue;
1049 ioc->ScsiLookup[ii] = NULL;
1050 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1051 mptscsih_freeChainBuffers(ioc, ii);
1052 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1053 scsi_dma_unmap(sc);
1054 sc->host_scribble = NULL;
1055 sc->result = DID_NO_CONNECT << 16;
1056 sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT "completing cmds: fw_channel %d,"
1057 "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name, vdevice->vtarget->channel,
1058 vdevice->vtarget->id, sc, mf, ii);
1059 sc->scsi_done(sc);
1060 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1061 }
1062 }
1063 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1064 return;
1065 }
1066
1067 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1068
1069 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1070 /*
1071 * mptscsih_report_queue_full - Report QUEUE_FULL status returned
1072 * from a SCSI target device.
1073 * @sc: Pointer to scsi_cmnd structure
1074 * @pScsiReply: Pointer to SCSIIOReply_t
1075 * @pScsiReq: Pointer to original SCSI request
1076 *
1077 * This routine periodically reports QUEUE_FULL status returned from a
1078 * SCSI target device. It reports this to the console via kernel
1079 * printk() API call, not more than once every 10 seconds.
1080 */
1081 static void
1082 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1083 {
1084 long time = jiffies;
1085 MPT_SCSI_HOST *hd;
1086 MPT_ADAPTER *ioc;
1087
1088 if (sc->device == NULL)
1089 return;
1090 if (sc->device->host == NULL)
1091 return;
1092 if ((hd = shost_priv(sc->device->host)) == NULL)
1093 return;
1094 ioc = hd->ioc;
1095 if (time - hd->last_queue_full > 10 * HZ) {
1096 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n",
1097 ioc->name, 0, sc->device->id, sc->device->lun));
1098 hd->last_queue_full = time;
1099 }
1100 }
1101
1102 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1103 /*
1104 * mptscsih_remove - Removed scsi devices
1105 * @pdev: Pointer to pci_dev structure
1106 *
1107 *
1108 */
1109 void
1110 mptscsih_remove(struct pci_dev *pdev)
1111 {
1112 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1113 struct Scsi_Host *host = ioc->sh;
1114 MPT_SCSI_HOST *hd;
1115 int sz1;
1116
1117 if(!host) {
1118 mpt_detach(pdev);
1119 return;
1120 }
1121
1122 scsi_remove_host(host);
1123
1124 if((hd = shost_priv(host)) == NULL)
1125 return;
1126
1127 mptscsih_shutdown(pdev);
1128
1129 sz1=0;
1130
1131 if (ioc->ScsiLookup != NULL) {
1132 sz1 = ioc->req_depth * sizeof(void *);
1133 kfree(ioc->ScsiLookup);
1134 ioc->ScsiLookup = NULL;
1135 }
1136
1137 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1138 "Free'd ScsiLookup (%d) memory\n",
1139 ioc->name, sz1));
1140
1141 kfree(hd->info_kbuf);
1142
1143 /* NULL the Scsi_Host pointer
1144 */
1145 ioc->sh = NULL;
1146
1147 scsi_host_put(host);
1148
1149 mpt_detach(pdev);
1150
1151 }
1152
1153 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1154 /*
1155 * mptscsih_shutdown - reboot notifier
1156 *
1157 */
1158 void
1159 mptscsih_shutdown(struct pci_dev *pdev)
1160 {
1161 }
1162
1163 #ifdef CONFIG_PM
1164 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1165 /*
1166 * mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1167 *
1168 *
1169 */
1170 int
1171 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1172 {
1173 mptscsih_shutdown(pdev);
1174 return mpt_suspend(pdev,state);
1175 }
1176
1177 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1178 /*
1179 * mptscsih_resume - Fusion MPT scsi driver resume routine.
1180 *
1181 *
1182 */
1183 int
1184 mptscsih_resume(struct pci_dev *pdev)
1185 {
1186 return mpt_resume(pdev);
1187 }
1188
1189 #endif
1190
1191 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1192 /**
1193 * mptscsih_info - Return information about MPT adapter
1194 * @SChost: Pointer to Scsi_Host structure
1195 *
1196 * (linux scsi_host_template.info routine)
1197 *
1198 * Returns pointer to buffer where information was written.
1199 */
1200 const char *
1201 mptscsih_info(struct Scsi_Host *SChost)
1202 {
1203 MPT_SCSI_HOST *h;
1204 int size = 0;
1205
1206 h = shost_priv(SChost);
1207
1208 if (h) {
1209 if (h->info_kbuf == NULL)
1210 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1211 return h->info_kbuf;
1212 h->info_kbuf[0] = '\0';
1213
1214 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1215 h->info_kbuf[size-1] = '\0';
1216 }
1217
1218 return h->info_kbuf;
1219 }
1220
1221 struct info_str {
1222 char *buffer;
1223 int length;
1224 int offset;
1225 int pos;
1226 };
1227
1228 static void
1229 mptscsih_copy_mem_info(struct info_str *info, char *data, int len)
1230 {
1231 if (info->pos + len > info->length)
1232 len = info->length - info->pos;
1233
1234 if (info->pos + len < info->offset) {
1235 info->pos += len;
1236 return;
1237 }
1238
1239 if (info->pos < info->offset) {
1240 data += (info->offset - info->pos);
1241 len -= (info->offset - info->pos);
1242 }
1243
1244 if (len > 0) {
1245 memcpy(info->buffer + info->pos, data, len);
1246 info->pos += len;
1247 }
1248 }
1249
1250 static int
1251 mptscsih_copy_info(struct info_str *info, char *fmt, ...)
1252 {
1253 va_list args;
1254 char buf[81];
1255 int len;
1256
1257 va_start(args, fmt);
1258 len = vsprintf(buf, fmt, args);
1259 va_end(args);
1260
1261 mptscsih_copy_mem_info(info, buf, len);
1262 return len;
1263 }
1264
1265 static int
1266 mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len)
1267 {
1268 struct info_str info;
1269
1270 info.buffer = pbuf;
1271 info.length = len;
1272 info.offset = offset;
1273 info.pos = 0;
1274
1275 mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name);
1276 mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1277 mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts);
1278 mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth);
1279
1280 return ((info.pos > info.offset) ? info.pos - info.offset : 0);
1281 }
1282
1283 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1284 /**
1285 * mptscsih_proc_info - Return information about MPT adapter
1286 * @host: scsi host struct
1287 * @buffer: if write, user data; if read, buffer for user
1288 * @start: returns the buffer address
1289 * @offset: if write, 0; if read, the current offset into the buffer from
1290 * the previous read.
1291 * @length: if write, return length;
1292 * @func: write = 1; read = 0
1293 *
1294 * (linux scsi_host_template.info routine)
1295 */
1296 int
1297 mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
1298 int length, int func)
1299 {
1300 MPT_SCSI_HOST *hd = shost_priv(host);
1301 MPT_ADAPTER *ioc = hd->ioc;
1302 int size = 0;
1303
1304 if (func) {
1305 /*
1306 * write is not supported
1307 */
1308 } else {
1309 if (start)
1310 *start = buffer;
1311
1312 size = mptscsih_host_info(ioc, buffer, offset, length);
1313 }
1314
1315 return size;
1316 }
1317
1318 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1319 #define ADD_INDEX_LOG(req_ent) do { } while(0)
1320
1321 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1322 /**
1323 * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1324 * @SCpnt: Pointer to scsi_cmnd structure
1325 * @done: Pointer SCSI mid-layer IO completion function
1326 *
1327 * (linux scsi_host_template.queuecommand routine)
1328 * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest
1329 * from a linux scsi_cmnd request and send it to the IOC.
1330 *
1331 * Returns 0. (rtn value discarded by linux scsi mid-layer)
1332 */
1333 int
1334 mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1335 {
1336 MPT_SCSI_HOST *hd;
1337 MPT_FRAME_HDR *mf;
1338 SCSIIORequest_t *pScsiReq;
1339 VirtDevice *vdevice = SCpnt->device->hostdata;
1340 int lun;
1341 u32 datalen;
1342 u32 scsictl;
1343 u32 scsidir;
1344 u32 cmd_len;
1345 int my_idx;
1346 int ii;
1347 MPT_ADAPTER *ioc;
1348
1349 hd = shost_priv(SCpnt->device->host);
1350 ioc = hd->ioc;
1351 lun = SCpnt->device->lun;
1352 SCpnt->scsi_done = done;
1353
1354 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
1355 ioc->name, SCpnt, done));
1356
1357 if (hd->resetPending) {
1358 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT "qcmd: SCpnt=%p timeout + 60HZ\n",
1359 ioc->name, SCpnt));
1360 return SCSI_MLQUEUE_HOST_BUSY;
1361 }
1362
1363 /*
1364 * Put together a MPT SCSI request...
1365 */
1366 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1367 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1368 ioc->name));
1369 return SCSI_MLQUEUE_HOST_BUSY;
1370 }
1371
1372 pScsiReq = (SCSIIORequest_t *) mf;
1373
1374 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1375
1376 ADD_INDEX_LOG(my_idx);
1377
1378 /* TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1379 * Seems we may receive a buffer (datalen>0) even when there
1380 * will be no data transfer! GRRRRR...
1381 */
1382 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1383 datalen = scsi_bufflen(SCpnt);
1384 scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */
1385 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1386 datalen = scsi_bufflen(SCpnt);
1387 scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */
1388 } else {
1389 datalen = 0;
1390 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1391 }
1392
1393 /* Default to untagged. Once a target structure has been allocated,
1394 * use the Inquiry data to determine if device supports tagged.
1395 */
1396 if (vdevice
1397 && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1398 && (SCpnt->device->tagged_supported)) {
1399 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1400 } else {
1401 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1402 }
1403
1404 /* Use the above information to set up the message frame
1405 */
1406 pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1407 pScsiReq->Bus = vdevice->vtarget->channel;
1408 pScsiReq->ChainOffset = 0;
1409 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
1410 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1411 else
1412 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1413 pScsiReq->CDBLength = SCpnt->cmd_len;
1414 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1415 pScsiReq->Reserved = 0;
1416 pScsiReq->MsgFlags = mpt_msg_flags();
1417 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1418 pScsiReq->Control = cpu_to_le32(scsictl);
1419
1420 /*
1421 * Write SCSI CDB into the message
1422 */
1423 cmd_len = SCpnt->cmd_len;
1424 for (ii=0; ii < cmd_len; ii++)
1425 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1426
1427 for (ii=cmd_len; ii < 16; ii++)
1428 pScsiReq->CDB[ii] = 0;
1429
1430 /* DataLength */
1431 pScsiReq->DataLength = cpu_to_le32(datalen);
1432
1433 /* SenseBuffer low address */
1434 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1435 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1436
1437 /* Now add the SG list
1438 * Always have a SGE even if null length.
1439 */
1440 if (datalen == 0) {
1441 /* Add a NULL SGE */
1442 mptscsih_add_sge((char *)&pScsiReq->SGL, MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1443 (dma_addr_t) -1);
1444 } else {
1445 /* Add a 32 or 64 bit SGE */
1446 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1447 goto fail;
1448 }
1449
1450 SCpnt->host_scribble = (unsigned char *)mf;
1451 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1452
1453 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1454 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1455 ioc->name, SCpnt, mf, my_idx));
1456 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1457 return 0;
1458
1459 fail:
1460 mptscsih_freeChainBuffers(ioc, my_idx);
1461 mpt_free_msg_frame(ioc, mf);
1462 return SCSI_MLQUEUE_HOST_BUSY;
1463 }
1464
1465 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1466 /*
1467 * mptscsih_freeChainBuffers - Function to free chain buffers associated
1468 * with a SCSI IO request
1469 * @hd: Pointer to the MPT_SCSI_HOST instance
1470 * @req_idx: Index of the SCSI IO request frame.
1471 *
1472 * Called if SG chain buffer allocation fails and mptscsih callbacks.
1473 * No return.
1474 */
1475 static void
1476 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1477 {
1478 MPT_FRAME_HDR *chain;
1479 unsigned long flags;
1480 int chain_idx;
1481 int next;
1482
1483 /* Get the first chain index and reset
1484 * tracker state.
1485 */
1486 chain_idx = ioc->ReqToChain[req_idx];
1487 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1488
1489 while (chain_idx != MPT_HOST_NO_CHAIN) {
1490
1491 /* Save the next chain buffer index */
1492 next = ioc->ChainToChain[chain_idx];
1493
1494 /* Free this chain buffer and reset
1495 * tracker
1496 */
1497 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1498
1499 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1500 + (chain_idx * ioc->req_sz));
1501
1502 spin_lock_irqsave(&ioc->FreeQlock, flags);
1503 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1504 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1505
1506 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1507 ioc->name, chain_idx));
1508
1509 /* handle next */
1510 chain_idx = next;
1511 }
1512 return;
1513 }
1514
1515 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1516 /*
1517 * Reset Handling
1518 */
1519
1520 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1521 /**
1522 * mptscsih_TMHandler - Generic handler for SCSI Task Management.
1523 * @hd: Pointer to MPT SCSI HOST structure
1524 * @type: Task Management type
1525 * @channel: channel number for task management
1526 * @id: Logical Target ID for reset (if appropriate)
1527 * @lun: Logical Unit for reset (if appropriate)
1528 * @ctx2abort: Context for the task to be aborted (if appropriate)
1529 * @timeout: timeout for task management control
1530 *
1531 * Fall through to mpt_HardResetHandler if: not operational, too many
1532 * failed TM requests or handshake failure.
1533 *
1534 * Remark: Currently invoked from a non-interrupt thread (_bh).
1535 *
1536 * Note: With old EH code, at most 1 SCSI TaskMgmt function per IOC
1537 * will be active.
1538 *
1539 * Returns 0 for SUCCESS, or %FAILED.
1540 **/
1541 int
1542 mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1543 {
1544 MPT_ADAPTER *ioc;
1545 int rc = -1;
1546 u32 ioc_raw_state;
1547 unsigned long flags;
1548
1549 ioc = hd->ioc;
1550 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler Entered!\n", ioc->name));
1551
1552 // SJR - CHECKME - Can we avoid this here?
1553 // (mpt_HardResetHandler has this check...)
1554 spin_lock_irqsave(&ioc->diagLock, flags);
1555 if ((ioc->diagPending) || (ioc->alt_ioc && ioc->alt_ioc->diagPending)) {
1556 spin_unlock_irqrestore(&ioc->diagLock, flags);
1557 return FAILED;
1558 }
1559 spin_unlock_irqrestore(&ioc->diagLock, flags);
1560
1561 /* Wait a fixed amount of time for the TM pending flag to be cleared.
1562 * If we time out and not bus reset, then we return a FAILED status
1563 * to the caller.
1564 * The call to mptscsih_tm_pending_wait() will set the pending flag
1565 * if we are
1566 * successful. Otherwise, reload the FW.
1567 */
1568 if (mptscsih_tm_pending_wait(hd) == FAILED) {
1569 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1570 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler abort: "
1571 "Timed out waiting for last TM (%d) to complete! \n",
1572 ioc->name, hd->tmPending));
1573 return FAILED;
1574 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET) {
1575 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler target "
1576 "reset: Timed out waiting for last TM (%d) "
1577 "to complete! \n", ioc->name,
1578 hd->tmPending));
1579 return FAILED;
1580 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) {
1581 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler bus reset: "
1582 "Timed out waiting for last TM (%d) to complete! \n",
1583 ioc->name, hd->tmPending));
1584 return FAILED;
1585 }
1586 } else {
1587 spin_lock_irqsave(&ioc->FreeQlock, flags);
1588 hd->tmPending |= (1 << type);
1589 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1590 }
1591
1592 ioc_raw_state = mpt_GetIocState(ioc, 0);
1593
1594 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1595 printk(MYIOC_s_WARN_FMT
1596 "TM Handler for type=%x: IOC Not operational (0x%x)!\n",
1597 ioc->name, type, ioc_raw_state);
1598 printk(MYIOC_s_WARN_FMT " Issuing HardReset!!\n", ioc->name);
1599 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1600 printk(MYIOC_s_WARN_FMT "TMHandler: HardReset "
1601 "FAILED!!\n", ioc->name);
1602 return FAILED;
1603 }
1604
1605 if (ioc_raw_state & MPI_DOORBELL_ACTIVE) {
1606 printk(MYIOC_s_WARN_FMT
1607 "TM Handler for type=%x: ioc_state: "
1608 "DOORBELL_ACTIVE (0x%x)!\n",
1609 ioc->name, type, ioc_raw_state);
1610 return FAILED;
1611 }
1612
1613 /* Isse the Task Mgmt request.
1614 */
1615 if (hd->hard_resets < -1)
1616 hd->hard_resets++;
1617
1618 rc = mptscsih_IssueTaskMgmt(hd, type, channel, id, lun,
1619 ctx2abort, timeout);
1620 if (rc)
1621 printk(MYIOC_s_INFO_FMT "Issue of TaskMgmt failed!\n",
1622 ioc->name);
1623 else
1624 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issue of TaskMgmt Successful!\n",
1625 ioc->name));
1626
1627 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1628 "TMHandler rc = %d!\n", ioc->name, rc));
1629
1630 return rc;
1631 }
1632
1633
1634 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1635 /**
1636 * mptscsih_IssueTaskMgmt - Generic send Task Management function.
1637 * @hd: Pointer to MPT_SCSI_HOST structure
1638 * @type: Task Management type
1639 * @channel: channel number for task management
1640 * @id: Logical Target ID for reset (if appropriate)
1641 * @lun: Logical Unit for reset (if appropriate)
1642 * @ctx2abort: Context for the task to be aborted (if appropriate)
1643 * @timeout: timeout for task management control
1644 *
1645 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1646 * or a non-interrupt thread. In the former, must not call schedule().
1647 *
1648 * Not all fields are meaningfull for all task types.
1649 *
1650 * Returns 0 for SUCCESS, or FAILED.
1651 *
1652 **/
1653 static int
1654 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1655 {
1656 MPT_FRAME_HDR *mf;
1657 SCSITaskMgmt_t *pScsiTm;
1658 int ii;
1659 int retval;
1660 MPT_ADAPTER *ioc = hd->ioc;
1661
1662 /* Return Fail to calling function if no message frames available.
1663 */
1664 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1665 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "IssueTaskMgmt, no msg frames!!\n",
1666 ioc->name));
1667 return FAILED;
1668 }
1669 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "IssueTaskMgmt request @ %p\n",
1670 ioc->name, mf));
1671
1672 /* Format the Request
1673 */
1674 pScsiTm = (SCSITaskMgmt_t *) mf;
1675 pScsiTm->TargetID = id;
1676 pScsiTm->Bus = channel;
1677 pScsiTm->ChainOffset = 0;
1678 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1679
1680 pScsiTm->Reserved = 0;
1681 pScsiTm->TaskType = type;
1682 pScsiTm->Reserved1 = 0;
1683 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1684 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1685
1686 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1687
1688 for (ii=0; ii < 7; ii++)
1689 pScsiTm->Reserved2[ii] = 0;
1690
1691 pScsiTm->TaskMsgContext = ctx2abort;
1692
1693 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "IssueTaskMgmt: ctx2abort (0x%08x) "
1694 "type=%d\n", ioc->name, ctx2abort, type));
1695
1696 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1697
1698 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1699 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1700 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1701 else {
1702 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1703 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1704 if (retval) {
1705 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "send_handshake FAILED!"
1706 " (hd %p, ioc %p, mf %p, rc=%d) \n", ioc->name, hd,
1707 ioc, mf, retval));
1708 goto fail_out;
1709 }
1710 }
1711
1712 if(mptscsih_tm_wait_for_completion(hd, timeout) == FAILED) {
1713 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "task management request TIMED OUT!"
1714 " (hd %p, ioc %p, mf %p) \n", ioc->name, hd,
1715 ioc, mf));
1716 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Calling HardReset! \n",
1717 ioc->name));
1718 retval = mpt_HardResetHandler(ioc, CAN_SLEEP);
1719 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rc=%d \n",
1720 ioc->name, retval));
1721 goto fail_out;
1722 }
1723
1724 /*
1725 * Handle success case, see if theres a non-zero ioc_status.
1726 */
1727 if (hd->tm_iocstatus == MPI_IOCSTATUS_SUCCESS ||
1728 hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
1729 hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
1730 retval = 0;
1731 else
1732 retval = FAILED;
1733
1734 return retval;
1735
1736 fail_out:
1737
1738 /*
1739 * Free task management mf, and corresponding tm flags
1740 */
1741 mpt_free_msg_frame(ioc, mf);
1742 hd->tmPending = 0;
1743 hd->tmState = TM_STATE_NONE;
1744 return FAILED;
1745 }
1746
1747 static int
1748 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1749 {
1750 switch (ioc->bus_type) {
1751 case FC:
1752 return 40;
1753 case SAS:
1754 return 10;
1755 case SPI:
1756 default:
1757 return 2;
1758 }
1759 }
1760
1761 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1762 /**
1763 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1764 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1765 *
1766 * (linux scsi_host_template.eh_abort_handler routine)
1767 *
1768 * Returns SUCCESS or FAILED.
1769 **/
1770 int
1771 mptscsih_abort(struct scsi_cmnd * SCpnt)
1772 {
1773 MPT_SCSI_HOST *hd;
1774 MPT_FRAME_HDR *mf;
1775 u32 ctx2abort;
1776 int scpnt_idx;
1777 int retval;
1778 VirtDevice *vdevice;
1779 ulong sn = SCpnt->serial_number;
1780 MPT_ADAPTER *ioc;
1781
1782 /* If we can't locate our host adapter structure, return FAILED status.
1783 */
1784 if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1785 SCpnt->result = DID_RESET << 16;
1786 SCpnt->scsi_done(SCpnt);
1787 printk(KERN_ERR MYNAM ": task abort: "
1788 "can't locate host! (sc=%p)\n", SCpnt);
1789 return FAILED;
1790 }
1791
1792 ioc = hd->ioc;
1793 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1794 ioc->name, SCpnt);
1795 scsi_print_command(SCpnt);
1796
1797 vdevice = SCpnt->device->hostdata;
1798 if (!vdevice || !vdevice->vtarget) {
1799 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1800 "task abort: device has been deleted (sc=%p)\n",
1801 ioc->name, SCpnt));
1802 SCpnt->result = DID_NO_CONNECT << 16;
1803 SCpnt->scsi_done(SCpnt);
1804 retval = 0;
1805 goto out;
1806 }
1807
1808 /* Task aborts are not supported for hidden raid components.
1809 */
1810 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1811 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1812 "task abort: hidden raid component (sc=%p)\n",
1813 ioc->name, SCpnt));
1814 SCpnt->result = DID_RESET << 16;
1815 retval = FAILED;
1816 goto out;
1817 }
1818
1819 /* Find this command
1820 */
1821 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1822 /* Cmd not found in ScsiLookup.
1823 * Do OS callback.
1824 */
1825 SCpnt->result = DID_RESET << 16;
1826 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1827 "Command not in the active list! (sc=%p)\n", ioc->name,
1828 SCpnt));
1829 retval = 0;
1830 goto out;
1831 }
1832
1833 if (hd->resetPending) {
1834 retval = FAILED;
1835 goto out;
1836 }
1837
1838 if (hd->timeouts < -1)
1839 hd->timeouts++;
1840
1841 /* Most important! Set TaskMsgContext to SCpnt's MsgContext!
1842 * (the IO to be ABORT'd)
1843 *
1844 * NOTE: Since we do not byteswap MsgContext, we do not
1845 * swap it here either. It is an opaque cookie to
1846 * the controller, so it does not matter. -DaveM
1847 */
1848 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1849 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1850
1851 hd->abortSCpnt = SCpnt;
1852
1853 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1854 vdevice->vtarget->channel, vdevice->vtarget->id, vdevice->lun,
1855 ctx2abort, mptscsih_get_tm_timeout(ioc));
1856
1857 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx &&
1858 SCpnt->serial_number == sn)
1859 retval = FAILED;
1860
1861 out:
1862 printk(MYIOC_s_INFO_FMT "task abort: %s (sc=%p)\n",
1863 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1864
1865 if (retval == 0)
1866 return SUCCESS;
1867 else
1868 return FAILED;
1869 }
1870
1871 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1872 /**
1873 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant
1874 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1875 *
1876 * (linux scsi_host_template.eh_dev_reset_handler routine)
1877 *
1878 * Returns SUCCESS or FAILED.
1879 **/
1880 int
1881 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1882 {
1883 MPT_SCSI_HOST *hd;
1884 int retval;
1885 VirtDevice *vdevice;
1886 MPT_ADAPTER *ioc;
1887
1888 /* If we can't locate our host adapter structure, return FAILED status.
1889 */
1890 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1891 printk(KERN_ERR MYNAM ": target reset: "
1892 "Can't locate host! (sc=%p)\n", SCpnt);
1893 return FAILED;
1894 }
1895
1896 ioc = hd->ioc;
1897 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1898 ioc->name, SCpnt);
1899 scsi_print_command(SCpnt);
1900
1901 if (hd->resetPending) {
1902 retval = FAILED;
1903 goto out;
1904 }
1905
1906 vdevice = SCpnt->device->hostdata;
1907 if (!vdevice || !vdevice->vtarget) {
1908 retval = 0;
1909 goto out;
1910 }
1911
1912 /* Target reset to hidden raid component is not supported
1913 */
1914 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1915 retval = FAILED;
1916 goto out;
1917 }
1918
1919 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1920 vdevice->vtarget->channel, vdevice->vtarget->id, 0, 0,
1921 mptscsih_get_tm_timeout(ioc));
1922
1923 out:
1924 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1925 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1926
1927 if (retval == 0)
1928 return SUCCESS;
1929 else
1930 return FAILED;
1931 }
1932
1933
1934 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1935 /**
1936 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant
1937 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1938 *
1939 * (linux scsi_host_template.eh_bus_reset_handler routine)
1940 *
1941 * Returns SUCCESS or FAILED.
1942 **/
1943 int
1944 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1945 {
1946 MPT_SCSI_HOST *hd;
1947 int retval;
1948 VirtDevice *vdevice;
1949 MPT_ADAPTER *ioc;
1950
1951 /* If we can't locate our host adapter structure, return FAILED status.
1952 */
1953 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1954 printk(KERN_ERR MYNAM ": bus reset: "
1955 "Can't locate host! (sc=%p)\n", SCpnt);
1956 return FAILED;
1957 }
1958
1959 ioc = hd->ioc;
1960 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1961 ioc->name, SCpnt);
1962 scsi_print_command(SCpnt);
1963
1964 if (hd->timeouts < -1)
1965 hd->timeouts++;
1966
1967 vdevice = SCpnt->device->hostdata;
1968 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1969 vdevice->vtarget->channel, 0, 0, 0, mptscsih_get_tm_timeout(ioc));
1970
1971 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1972 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1973
1974 if (retval == 0)
1975 return SUCCESS;
1976 else
1977 return FAILED;
1978 }
1979
1980 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1981 /**
1982 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1983 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1984 *
1985 * (linux scsi_host_template.eh_host_reset_handler routine)
1986 *
1987 * Returns SUCCESS or FAILED.
1988 */
1989 int
1990 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1991 {
1992 MPT_SCSI_HOST * hd;
1993 int retval;
1994 MPT_ADAPTER *ioc;
1995
1996 /* If we can't locate the host to reset, then we failed. */
1997 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1998 printk(KERN_ERR MYNAM ": host reset: "
1999 "Can't locate host! (sc=%p)\n", SCpnt);
2000 return FAILED;
2001 }
2002
2003 ioc = hd->ioc;
2004 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
2005 ioc->name, SCpnt);
2006
2007 /* If our attempts to reset the host failed, then return a failed
2008 * status. The host will be taken off line by the SCSI mid-layer.
2009 */
2010 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0) {
2011 retval = FAILED;
2012 } else {
2013 /* Make sure TM pending is cleared and TM state is set to
2014 * NONE.
2015 */
2016 retval = 0;
2017 hd->tmPending = 0;
2018 hd->tmState = TM_STATE_NONE;
2019 }
2020
2021 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
2022 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
2023
2024 return retval;
2025 }
2026
2027 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2028 /**
2029 * mptscsih_tm_pending_wait - wait for pending task management request to complete
2030 * @hd: Pointer to MPT host structure.
2031 *
2032 * Returns {SUCCESS,FAILED}.
2033 */
2034 static int
2035 mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd)
2036 {
2037 unsigned long flags;
2038 int loop_count = 4 * 10; /* Wait 10 seconds */
2039 int status = FAILED;
2040 MPT_ADAPTER *ioc = hd->ioc;
2041
2042 do {
2043 spin_lock_irqsave(&ioc->FreeQlock, flags);
2044 if (hd->tmState == TM_STATE_NONE) {
2045 hd->tmState = TM_STATE_IN_PROGRESS;
2046 hd->tmPending = 1;
2047 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2048 status = SUCCESS;
2049 break;
2050 }
2051 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2052 msleep(250);
2053 } while (--loop_count);
2054
2055 return status;
2056 }
2057
2058 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2059 /**
2060 * mptscsih_tm_wait_for_completion - wait for completion of TM task
2061 * @hd: Pointer to MPT host structure.
2062 * @timeout: timeout value
2063 *
2064 * Returns {SUCCESS,FAILED}.
2065 */
2066 static int
2067 mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout )
2068 {
2069 unsigned long flags;
2070 int loop_count = 4 * timeout;
2071 int status = FAILED;
2072 MPT_ADAPTER *ioc = hd->ioc;
2073
2074 do {
2075 spin_lock_irqsave(&ioc->FreeQlock, flags);
2076 if(hd->tmPending == 0) {
2077 status = SUCCESS;
2078 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2079 break;
2080 }
2081 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2082 msleep(250);
2083 } while (--loop_count);
2084
2085 return status;
2086 }
2087
2088 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2089 static void
2090 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2091 {
2092 char *desc;
2093
2094 switch (response_code) {
2095 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2096 desc = "The task completed.";
2097 break;
2098 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2099 desc = "The IOC received an invalid frame status.";
2100 break;
2101 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2102 desc = "The task type is not supported.";
2103 break;
2104 case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2105 desc = "The requested task failed.";
2106 break;
2107 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2108 desc = "The task completed successfully.";
2109 break;
2110 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2111 desc = "The LUN request is invalid.";
2112 break;
2113 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2114 desc = "The task is in the IOC queue and has not been sent to target.";
2115 break;
2116 default:
2117 desc = "unknown";
2118 break;
2119 }
2120 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2121 ioc->name, response_code, desc);
2122 }
2123
2124 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2125 /**
2126 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2127 * @ioc: Pointer to MPT_ADAPTER structure
2128 * @mf: Pointer to SCSI task mgmt request frame
2129 * @mr: Pointer to SCSI task mgmt reply frame
2130 *
2131 * This routine is called from mptbase.c::mpt_interrupt() at the completion
2132 * of any SCSI task management request.
2133 * This routine is registered with the MPT (base) driver at driver
2134 * load/init time via the mpt_register() API call.
2135 *
2136 * Returns 1 indicating alloc'd request frame ptr should be freed.
2137 **/
2138 int
2139 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2140 {
2141 SCSITaskMgmtReply_t *pScsiTmReply;
2142 SCSITaskMgmt_t *pScsiTmReq;
2143 MPT_SCSI_HOST *hd;
2144 unsigned long flags;
2145 u16 iocstatus;
2146 u8 tmType;
2147 u32 termination_count;
2148
2149 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt completed (mf=%p,mr=%p)\n",
2150 ioc->name, mf, mr));
2151 if (!ioc->sh) {
2152 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
2153 "TaskMgmt Complete: NULL Scsi Host Ptr\n", ioc->name));
2154 return 1;
2155 }
2156
2157 if (mr == NULL) {
2158 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
2159 "ERROR! TaskMgmt Reply: NULL Request %p\n", ioc->name, mf));
2160 return 1;
2161 }
2162
2163 hd = shost_priv(ioc->sh);
2164 pScsiTmReply = (SCSITaskMgmtReply_t*)mr;
2165 pScsiTmReq = (SCSITaskMgmt_t*)mf;
2166 tmType = pScsiTmReq->TaskType;
2167 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2168 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
2169
2170 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
2171 pScsiTmReply->ResponseCode)
2172 mptscsih_taskmgmt_response_code(ioc,
2173 pScsiTmReply->ResponseCode);
2174 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
2175
2176 #ifdef CONFIG_FUSION_LOGGING
2177 if ((ioc->debug_level & MPT_DEBUG_REPLY) ||
2178 (ioc->debug_level & MPT_DEBUG_TM ))
2179 printk("%s: ha=%d [%d:%d:0] task_type=0x%02X "
2180 "iocstatus=0x%04X\n\tloginfo=0x%08X response_code=0x%02X "
2181 "term_cmnds=%d\n", __FUNCTION__, ioc->id, pScsiTmReply->Bus,
2182 pScsiTmReply->TargetID, pScsiTmReq->TaskType,
2183 le16_to_cpu(pScsiTmReply->IOCStatus),
2184 le32_to_cpu(pScsiTmReply->IOCLogInfo),pScsiTmReply->ResponseCode,
2185 le32_to_cpu(pScsiTmReply->TerminationCount));
2186 #endif
2187 if (!iocstatus) {
2188 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT " TaskMgmt SUCCESS\n", ioc->name));
2189 hd->abortSCpnt = NULL;
2190 goto out;
2191 }
2192
2193 /* Error? (anything non-zero?) */
2194
2195 /* clear flags and continue.
2196 */
2197 switch (tmType) {
2198
2199 case MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2200 if (termination_count == 1)
2201 iocstatus = MPI_IOCSTATUS_SCSI_TASK_TERMINATED;
2202 hd->abortSCpnt = NULL;
2203 break;
2204
2205 case MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS:
2206
2207 /* If an internal command is present
2208 * or the TM failed - reload the FW.
2209 * FC FW may respond FAILED to an ABORT
2210 */
2211 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED ||
2212 hd->cmdPtr)
2213 if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0)
2214 printk(MYIOC_s_WARN_FMT " Firmware Reload FAILED!!\n", ioc->name);
2215 break;
2216
2217 case MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2218 default:
2219 break;
2220 }
2221
2222 out:
2223 spin_lock_irqsave(&ioc->FreeQlock, flags);
2224 hd->tmPending = 0;
2225 hd->tmState = TM_STATE_NONE;
2226 hd->tm_iocstatus = iocstatus;
2227 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2228
2229 return 1;
2230 }
2231
2232 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2233 /*
2234 * This is anyones guess quite frankly.
2235 */
2236 int
2237 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2238 sector_t capacity, int geom[])
2239 {
2240 int heads;
2241 int sectors;
2242 sector_t cylinders;
2243 ulong dummy;
2244
2245 heads = 64;
2246 sectors = 32;
2247
2248 dummy = heads * sectors;
2249 cylinders = capacity;
2250 sector_div(cylinders,dummy);
2251
2252 /*
2253 * Handle extended translation size for logical drives
2254 * > 1Gb
2255 */
2256 if ((ulong)capacity >= 0x200000) {
2257 heads = 255;
2258 sectors = 63;
2259 dummy = heads * sectors;
2260 cylinders = capacity;
2261 sector_div(cylinders,dummy);
2262 }
2263
2264 /* return result */
2265 geom[0] = heads;
2266 geom[1] = sectors;
2267 geom[2] = cylinders;
2268
2269 return 0;
2270 }
2271
2272 /* Search IOC page 3 to determine if this is hidden physical disk
2273 *
2274 */
2275 int
2276 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2277 {
2278 struct inactive_raid_component_info *component_info;
2279 int i;
2280 int rc = 0;
2281
2282 if (!ioc->raid_data.pIocPg3)
2283 goto out;
2284 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2285 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2286 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2287 rc = 1;
2288 goto out;
2289 }
2290 }
2291
2292 /*
2293 * Check inactive list for matching phys disks
2294 */
2295 if (list_empty(&ioc->raid_data.inactive_list))
2296 goto out;
2297
2298 down(&ioc->raid_data.inactive_list_mutex);
2299 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2300 list) {
2301 if ((component_info->d.PhysDiskID == id) &&
2302 (component_info->d.PhysDiskBus == channel))
2303 rc = 1;
2304 }
2305 up(&ioc->raid_data.inactive_list_mutex);
2306
2307 out:
2308 return rc;
2309 }
2310 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2311
2312 u8
2313 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2314 {
2315 struct inactive_raid_component_info *component_info;
2316 int i;
2317 int rc = -ENXIO;
2318
2319 if (!ioc->raid_data.pIocPg3)
2320 goto out;
2321 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2322 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2323 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2324 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2325 goto out;
2326 }
2327 }
2328
2329 /*
2330 * Check inactive list for matching phys disks
2331 */
2332 if (list_empty(&ioc->raid_data.inactive_list))
2333 goto out;
2334
2335 down(&ioc->raid_data.inactive_list_mutex);
2336 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2337 list) {
2338 if ((component_info->d.PhysDiskID == id) &&
2339 (component_info->d.PhysDiskBus == channel))
2340 rc = component_info->d.PhysDiskNum;
2341 }
2342 up(&ioc->raid_data.inactive_list_mutex);
2343
2344 out:
2345 return rc;
2346 }
2347 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2348
2349 /*
2350 * OS entry point to allow for host driver to free allocated memory
2351 * Called if no device present or device being unloaded
2352 */
2353 void
2354 mptscsih_slave_destroy(struct scsi_device *sdev)
2355 {
2356 struct Scsi_Host *host = sdev->host;
2357 MPT_SCSI_HOST *hd = shost_priv(host);
2358 VirtTarget *vtarget;
2359 VirtDevice *vdevice;
2360 struct scsi_target *starget;
2361
2362 starget = scsi_target(sdev);
2363 vtarget = starget->hostdata;
2364 vdevice = sdev->hostdata;
2365
2366 mptscsih_search_running_cmds(hd, vdevice);
2367 vtarget->num_luns--;
2368 mptscsih_synchronize_cache(hd, vdevice);
2369 kfree(vdevice);
2370 sdev->hostdata = NULL;
2371 }
2372
2373 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2374 /*
2375 * mptscsih_change_queue_depth - This function will set a devices queue depth
2376 * @sdev: per scsi_device pointer
2377 * @qdepth: requested queue depth
2378 *
2379 * Adding support for new 'change_queue_depth' api.
2380 */
2381 int
2382 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
2383 {
2384 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
2385 VirtTarget *vtarget;
2386 struct scsi_target *starget;
2387 int max_depth;
2388 int tagged;
2389 MPT_ADAPTER *ioc = hd->ioc;
2390
2391 starget = scsi_target(sdev);
2392 vtarget = starget->hostdata;
2393
2394 if (ioc->bus_type == SPI) {
2395 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2396 max_depth = 1;
2397 else if (sdev->type == TYPE_DISK &&
2398 vtarget->minSyncFactor <= MPT_ULTRA160)
2399 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2400 else
2401 max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2402 } else
2403 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2404
2405 if (qdepth > max_depth)
2406 qdepth = max_depth;
2407 if (qdepth == 1)
2408 tagged = 0;
2409 else
2410 tagged = MSG_SIMPLE_TAG;
2411
2412 scsi_adjust_queue_depth(sdev, tagged, qdepth);
2413 return sdev->queue_depth;
2414 }
2415
2416 /*
2417 * OS entry point to adjust the queue_depths on a per-device basis.
2418 * Called once per device the bus scan. Use it to force the queue_depth
2419 * member to 1 if a device does not support Q tags.
2420 * Return non-zero if fails.
2421 */
2422 int
2423 mptscsih_slave_configure(struct scsi_device *sdev)
2424 {
2425 struct Scsi_Host *sh = sdev->host;
2426 VirtTarget *vtarget;
2427 VirtDevice *vdevice;
2428 struct scsi_target *starget;
2429 MPT_SCSI_HOST *hd = shost_priv(sh);
2430 MPT_ADAPTER *ioc = hd->ioc;
2431
2432 starget = scsi_target(sdev);
2433 vtarget = starget->hostdata;
2434 vdevice = sdev->hostdata;
2435
2436 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2437 "device @ %p, channel=%d, id=%d, lun=%d\n",
2438 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2439 if (ioc->bus_type == SPI)
2440 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2441 "sdtr %d wdtr %d ppr %d inq length=%d\n",
2442 ioc->name, sdev->sdtr, sdev->wdtr,
2443 sdev->ppr, sdev->inquiry_len));
2444
2445 if (sdev->id > sh->max_id) {
2446 /* error case, should never happen */
2447 scsi_adjust_queue_depth(sdev, 0, 1);
2448 goto slave_configure_exit;
2449 }
2450
2451 vdevice->configured_lun = 1;
2452 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
2453
2454 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2455 "Queue depth=%d, tflags=%x\n",
2456 ioc->name, sdev->queue_depth, vtarget->tflags));
2457
2458 if (ioc->bus_type == SPI)
2459 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2460 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2461 ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2462 vtarget->minSyncFactor));
2463
2464 slave_configure_exit:
2465
2466 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2467 "tagged %d, simple %d, ordered %d\n",
2468 ioc->name,sdev->tagged_supported, sdev->simple_tags,
2469 sdev->ordered_tags));
2470
2471 return 0;
2472 }
2473
2474 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2475 /*
2476 * Private routines...
2477 */
2478
2479 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2480 /* Utility function to copy sense data from the scsi_cmnd buffer
2481 * to the FC and SCSI target structures.
2482 *
2483 */
2484 static void
2485 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2486 {
2487 VirtDevice *vdevice;
2488 SCSIIORequest_t *pReq;
2489 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount);
2490 MPT_ADAPTER *ioc = hd->ioc;
2491
2492 /* Get target structure
2493 */
2494 pReq = (SCSIIORequest_t *) mf;
2495 vdevice = sc->device->hostdata;
2496
2497 if (sense_count) {
2498 u8 *sense_data;
2499 int req_index;
2500
2501 /* Copy the sense received into the scsi command block. */
2502 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2503 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2504 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2505
2506 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2507 */
2508 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2509 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2510 int idx;
2511
2512 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2513 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2514 ioc->events[idx].eventContext = ioc->eventContext;
2515
2516 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2517 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2518 (sc->device->channel << 8) | sc->device->id;
2519
2520 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2521
2522 ioc->eventContext++;
2523 if (ioc->pcidev->vendor ==
2524 PCI_VENDOR_ID_IBM) {
2525 mptscsih_issue_sep_command(ioc,
2526 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2527 vdevice->vtarget->tflags |=
2528 MPT_TARGET_FLAGS_LED_ON;
2529 }
2530 }
2531 }
2532 } else {
2533 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2534 ioc->name));
2535 }
2536 }
2537
2538 /**
2539 * mptscsih_get_scsi_lookup
2540 * @ioc: Pointer to MPT_ADAPTER structure
2541 * @i: index into the array
2542 *
2543 * retrieves scmd entry from ScsiLookup[] array list
2544 *
2545 * Returns the scsi_cmd pointer
2546 **/
2547 static struct scsi_cmnd *
2548 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2549 {
2550 unsigned long flags;
2551 struct scsi_cmnd *scmd;
2552
2553 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2554 scmd = ioc->ScsiLookup[i];
2555 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2556
2557 return scmd;
2558 }
2559
2560 /**
2561 * mptscsih_getclear_scsi_lookup
2562 * @ioc: Pointer to MPT_ADAPTER structure
2563 * @i: index into the array
2564 *
2565 * retrieves and clears scmd entry from ScsiLookup[] array list
2566 *
2567 * Returns the scsi_cmd pointer
2568 **/
2569 static struct scsi_cmnd *
2570 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2571 {
2572 unsigned long flags;
2573 struct scsi_cmnd *scmd;
2574
2575 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2576 scmd = ioc->ScsiLookup[i];
2577 ioc->ScsiLookup[i] = NULL;
2578 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2579
2580 return scmd;
2581 }
2582
2583 /**
2584 * mptscsih_set_scsi_lookup
2585 *
2586 * writes a scmd entry into the ScsiLookup[] array list
2587 *
2588 * @ioc: Pointer to MPT_ADAPTER structure
2589 * @i: index into the array
2590 * @scmd: scsi_cmnd pointer
2591 *
2592 **/
2593 static void
2594 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2595 {
2596 unsigned long flags;
2597
2598 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2599 ioc->ScsiLookup[i] = scmd;
2600 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2601 }
2602
2603 /**
2604 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2605 * @ioc: Pointer to MPT_ADAPTER structure
2606 * @sc: scsi_cmnd pointer
2607 */
2608 static int
2609 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2610 {
2611 unsigned long flags;
2612 int i, index=-1;
2613
2614 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2615 for (i = 0; i < ioc->req_depth; i++) {
2616 if (ioc->ScsiLookup[i] == sc) {
2617 index = i;
2618 goto out;
2619 }
2620 }
2621
2622 out:
2623 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2624 return index;
2625 }
2626
2627 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2628 int
2629 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2630 {
2631 MPT_SCSI_HOST *hd;
2632 unsigned long flags;
2633
2634 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2635 ": IOC %s_reset routed to SCSI host driver!\n",
2636 ioc->name, reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
2637 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
2638
2639 /* If a FW reload request arrives after base installed but
2640 * before all scsi hosts have been attached, then an alt_ioc
2641 * may have a NULL sh pointer.
2642 */
2643 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2644 return 0;
2645 else
2646 hd = shost_priv(ioc->sh);
2647
2648 if (reset_phase == MPT_IOC_SETUP_RESET) {
2649 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Setup-Diag Reset\n", ioc->name));
2650
2651 /* Clean Up:
2652 * 1. Set Hard Reset Pending Flag
2653 * All new commands go to doneQ
2654 */
2655 hd->resetPending = 1;
2656
2657 } else if (reset_phase == MPT_IOC_PRE_RESET) {
2658 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Pre-Diag Reset\n", ioc->name));
2659
2660 /* 2. Flush running commands
2661 * Clean ScsiLookup (and associated memory)
2662 * AND clean mytaskQ
2663 */
2664
2665 /* 2b. Reply to OS all known outstanding I/O commands.
2666 */
2667 mptscsih_flush_running_cmds(hd);
2668
2669 /* 2c. If there was an internal command that
2670 * has not completed, configuration or io request,
2671 * free these resources.
2672 */
2673 if (hd->cmdPtr) {
2674 del_timer(&hd->timer);
2675 mpt_free_msg_frame(ioc, hd->cmdPtr);
2676 }
2677
2678 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Pre-Reset complete.\n", ioc->name));
2679
2680 } else {
2681 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Post-Diag Reset\n", ioc->name));
2682
2683 /* Once a FW reload begins, all new OS commands are
2684 * redirected to the doneQ w/ a reset status.
2685 * Init all control structures.
2686 */
2687
2688 /* 2. Chain Buffer initialization
2689 */
2690
2691 /* 4. Renegotiate to all devices, if SPI
2692 */
2693
2694 /* 5. Enable new commands to be posted
2695 */
2696 spin_lock_irqsave(&ioc->FreeQlock, flags);
2697 hd->tmPending = 0;
2698 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2699 hd->resetPending = 0;
2700 hd->tmState = TM_STATE_NONE;
2701
2702 /* 6. If there was an internal command,
2703 * wake this process up.
2704 */
2705 if (hd->cmdPtr) {
2706 /*
2707 * Wake up the original calling thread
2708 */
2709 hd->pLocal = &hd->localReply;
2710 hd->pLocal->completion = MPT_SCANDV_DID_RESET;
2711 hd->scandv_wait_done = 1;
2712 wake_up(&hd->scandv_waitq);
2713 hd->cmdPtr = NULL;
2714 }
2715
2716 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Post-Reset complete.\n", ioc->name));
2717
2718 }
2719
2720 return 1; /* currently means nothing really */
2721 }
2722
2723 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2724 int
2725 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2726 {
2727 MPT_SCSI_HOST *hd;
2728 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2729
2730 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
2731 ioc->name, event));
2732
2733 if (ioc->sh == NULL ||
2734 ((hd = shost_priv(ioc->sh)) == NULL))
2735 return 1;
2736
2737 switch (event) {
2738 case MPI_EVENT_UNIT_ATTENTION: /* 03 */
2739 /* FIXME! */
2740 break;
2741 case MPI_EVENT_IOC_BUS_RESET: /* 04 */
2742 case MPI_EVENT_EXT_BUS_RESET: /* 05 */
2743 if (hd && (ioc->bus_type == SPI) && (hd->soft_resets < -1))
2744 hd->soft_resets++;
2745 break;
2746 case MPI_EVENT_LOGOUT: /* 09 */
2747 /* FIXME! */
2748 break;
2749
2750 case MPI_EVENT_RESCAN: /* 06 */
2751 break;
2752
2753 /*
2754 * CHECKME! Don't think we need to do
2755 * anything for these, but...
2756 */
2757 case MPI_EVENT_LINK_STATUS_CHANGE: /* 07 */
2758 case MPI_EVENT_LOOP_STATE_CHANGE: /* 08 */
2759 /*
2760 * CHECKME! Falling thru...
2761 */
2762 break;
2763
2764 case MPI_EVENT_INTEGRATED_RAID: /* 0B */
2765 break;
2766
2767 case MPI_EVENT_NONE: /* 00 */
2768 case MPI_EVENT_LOG_DATA: /* 01 */
2769 case MPI_EVENT_STATE_CHANGE: /* 02 */
2770 case MPI_EVENT_EVENT_CHANGE: /* 0A */
2771 default:
2772 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": Ignoring event (=%02Xh)\n",
2773 ioc->name, event));
2774 break;
2775 }
2776
2777 return 1; /* currently means nothing really */
2778 }
2779
2780 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2781 /*
2782 * Bus Scan and Domain Validation functionality ...
2783 */
2784
2785 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2786 /*
2787 * mptscsih_scandv_complete - Scan and DV callback routine registered
2788 * to Fustion MPT (base) driver.
2789 *
2790 * @ioc: Pointer to MPT_ADAPTER structure
2791 * @mf: Pointer to original MPT request frame
2792 * @mr: Pointer to MPT reply frame (NULL if TurboReply)
2793 *
2794 * This routine is called from mpt.c::mpt_interrupt() at the completion
2795 * of any SCSI IO request.
2796 * This routine is registered with the Fusion MPT (base) driver at driver
2797 * load/init time via the mpt_register() API call.
2798 *
2799 * Returns 1 indicating alloc'd request frame ptr should be freed.
2800 *
2801 * Remark: Sets a completion code and (possibly) saves sense data
2802 * in the IOC member localReply structure.
2803 * Used ONLY for DV and other internal commands.
2804 */
2805 int
2806 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2807 {
2808 MPT_SCSI_HOST *hd;
2809 SCSIIORequest_t *pReq;
2810 int completionCode;
2811 u16 req_idx;
2812
2813 hd = shost_priv(ioc->sh);
2814
2815 if ((mf == NULL) ||
2816 (mf >= MPT_INDEX_2_MFPTR(ioc, ioc->req_depth))) {
2817 printk(MYIOC_s_ERR_FMT
2818 "ScanDvComplete, %s req frame ptr! (=%p)\n",
2819 ioc->name, mf?"BAD":"NULL", (void *) mf);
2820 goto wakeup;
2821 }
2822
2823 del_timer(&hd->timer);
2824 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2825 mptscsih_set_scsi_lookup(ioc, req_idx, NULL);
2826 pReq = (SCSIIORequest_t *) mf;
2827
2828 if (mf != hd->cmdPtr) {
2829 printk(MYIOC_s_WARN_FMT "ScanDvComplete (mf=%p, cmdPtr=%p, idx=%d)\n",
2830 ioc->name, (void *)mf, (void *) hd->cmdPtr, req_idx);
2831 }
2832 hd->cmdPtr = NULL;
2833
2834 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScanDvComplete (mf=%p,mr=%p,idx=%d)\n",
2835 ioc->name, mf, mr, req_idx));
2836
2837 hd->pLocal = &hd->localReply;
2838 hd->pLocal->scsiStatus = 0;
2839
2840 /* If target struct exists, clear sense valid flag.
2841 */
2842 if (mr == NULL) {
2843 completionCode = MPT_SCANDV_GOOD;
2844 } else {
2845 SCSIIOReply_t *pReply;
2846 u16 status;
2847 u8 scsi_status;
2848
2849 pReply = (SCSIIOReply_t *) mr;
2850
2851 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2852 scsi_status = pReply->SCSIStatus;
2853
2854
2855 switch(status) {
2856
2857 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
2858 completionCode = MPT_SCANDV_SELECTION_TIMEOUT;
2859 break;
2860
2861 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
2862 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
2863 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
2864 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
2865 completionCode = MPT_SCANDV_DID_RESET;
2866 break;
2867
2868 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
2869 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
2870 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
2871 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2872 ConfigReply_t *pr = (ConfigReply_t *)mr;
2873 completionCode = MPT_SCANDV_GOOD;
2874 hd->pLocal->header.PageVersion = pr->Header.PageVersion;
2875 hd->pLocal->header.PageLength = pr->Header.PageLength;
2876 hd->pLocal->header.PageNumber = pr->Header.PageNumber;
2877 hd->pLocal->header.PageType = pr->Header.PageType;
2878
2879 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2880 /* If the RAID Volume request is successful,
2881 * return GOOD, else indicate that
2882 * some type of error occurred.
2883 */
2884 MpiRaidActionReply_t *pr = (MpiRaidActionReply_t *)mr;
2885 if (le16_to_cpu(pr->ActionStatus) == MPI_RAID_ACTION_ASTATUS_SUCCESS)
2886 completionCode = MPT_SCANDV_GOOD;
2887 else
2888 completionCode = MPT_SCANDV_SOME_ERROR;
2889 memcpy(hd->pLocal->sense, pr, sizeof(hd->pLocal->sense));
2890
2891 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
2892 u8 *sense_data;
2893 int sz;
2894
2895 /* save sense data in global structure
2896 */
2897 completionCode = MPT_SCANDV_SENSE;
2898 hd->pLocal->scsiStatus = scsi_status;
2899 sense_data = ((u8 *)ioc->sense_buf_pool +
2900 (req_idx * MPT_SENSE_BUFFER_ALLOC));
2901
2902 sz = min_t(int, pReq->SenseBufferLength,
2903 SCSI_STD_SENSE_BYTES);
2904 memcpy(hd->pLocal->sense, sense_data, sz);
2905
2906 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Check Condition, sense ptr %p\n",
2907 ioc->name, sense_data));
2908 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2909 if (pReq->CDB[0] == INQUIRY)
2910 completionCode = MPT_SCANDV_ISSUE_SENSE;
2911 else
2912 completionCode = MPT_SCANDV_DID_RESET;
2913 }
2914 else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2915 completionCode = MPT_SCANDV_DID_RESET;
2916 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2917 completionCode = MPT_SCANDV_DID_RESET;
2918 else {
2919 completionCode = MPT_SCANDV_GOOD;
2920 hd->pLocal->scsiStatus = scsi_status;
2921 }
2922 break;
2923
2924 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
2925 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2926 completionCode = MPT_SCANDV_DID_RESET;
2927 else
2928 completionCode = MPT_SCANDV_SOME_ERROR;
2929 break;
2930
2931 default:
2932 completionCode = MPT_SCANDV_SOME_ERROR;
2933 break;
2934
2935 } /* switch(status) */
2936
2937 } /* end of address reply case */
2938
2939 hd->pLocal->completion = completionCode;
2940
2941 /* MF and RF are freed in mpt_interrupt
2942 */
2943 wakeup:
2944 /* Free Chain buffers (will never chain) in scan or dv */
2945 //mptscsih_freeChainBuffers(ioc, req_idx);
2946
2947 /*
2948 * Wake up the original calling thread
2949 */
2950 hd->scandv_wait_done = 1;
2951 wake_up(&hd->scandv_waitq);
2952
2953 return 1;
2954 }
2955
2956 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2957 /* mptscsih_timer_expired - Call back for timer process.
2958 * Used only for dv functionality.
2959 * @data: Pointer to MPT_SCSI_HOST recast as an unsigned long
2960 *
2961 */
2962 void
2963 mptscsih_timer_expired(unsigned long data)
2964 {
2965 MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *) data;
2966 MPT_ADAPTER *ioc = hd->ioc;
2967
2968 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Timer Expired! Cmd %p\n", ioc->name, hd->cmdPtr));
2969
2970 if (hd->cmdPtr) {
2971 MPIHeader_t *cmd = (MPIHeader_t *)hd->cmdPtr;
2972
2973 if (cmd->Function == MPI_FUNCTION_SCSI_IO_REQUEST) {
2974 /* Desire to issue a task management request here.
2975 * TM requests MUST be single threaded.
2976 * If old eh code and no TM current, issue request.
2977 * If new eh code, do nothing. Wait for OS cmd timeout
2978 * for bus reset.
2979 */
2980 } else {
2981 /* Perform a FW reload */
2982 if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0) {
2983 printk(MYIOC_s_WARN_FMT "Firmware Reload FAILED!\n", ioc->name);
2984 }
2985 }
2986 } else {
2987 /* This should NEVER happen */
2988 printk(MYIOC_s_WARN_FMT "Null cmdPtr!!!!\n", ioc->name);
2989 }
2990
2991 /* No more processing.
2992 * TM call will generate an interrupt for SCSI TM Management.
2993 * The FW will reply to all outstanding commands, callback will finish cleanup.
2994 * Hard reset clean-up will free all resources.
2995 */
2996 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Timer Expired Complete!\n", ioc->name));
2997
2998 return;
2999 }
3000
3001
3002 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3003 /**
3004 * mptscsih_do_cmd - Do internal command.
3005 * @hd: MPT_SCSI_HOST pointer
3006 * @io: INTERNAL_CMD pointer.
3007 *
3008 * Issue the specified internally generated command and do command
3009 * specific cleanup. For bus scan / DV only.
3010 * NOTES: If command is Inquiry and status is good,
3011 * initialize a target structure, save the data
3012 *
3013 * Remark: Single threaded access only.
3014 *
3015 * Return:
3016 * < 0 if an illegal command or no resources
3017 *
3018 * 0 if good
3019 *
3020 * > 0 if command complete but some type of completion error.
3021 */
3022 static int
3023 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
3024 {
3025 MPT_FRAME_HDR *mf;
3026 SCSIIORequest_t *pScsiReq;
3027 SCSIIORequest_t ReqCopy;
3028 int my_idx, ii, dir;
3029 int rc, cmdTimeout;
3030 int in_isr;
3031 char cmdLen;
3032 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
3033 char cmd = io->cmd;
3034 MPT_ADAPTER *ioc = hd->ioc;
3035
3036 in_isr = in_interrupt();
3037 if (in_isr) {
3038 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Internal SCSI IO request not allowed in ISR context!\n",
3039 ioc->name));
3040 return -EPERM;
3041 }
3042
3043
3044 /* Set command specific information
3045 */
3046 switch (cmd) {
3047 case INQUIRY:
3048 cmdLen = 6;
3049 dir = MPI_SCSIIO_CONTROL_READ;
3050 CDB[0] = cmd;
3051 CDB[4] = io->size;
3052 cmdTimeout = 10;
3053 break;
3054
3055 case TEST_UNIT_READY:
3056 cmdLen = 6;
3057 dir = MPI_SCSIIO_CONTROL_READ;
3058 cmdTimeout = 10;
3059 break;
3060
3061 case START_STOP:
3062 cmdLen = 6;
3063 dir = MPI_SCSIIO_CONTROL_READ;
3064 CDB[0] = cmd;
3065 CDB[4] = 1; /*Spin up the disk */
3066 cmdTimeout = 15;
3067 break;
3068
3069 case REQUEST_SENSE:
3070 cmdLen = 6;
3071 CDB[0] = cmd;
3072 CDB[4] = io->size;
3073 dir = MPI_SCSIIO_CONTROL_READ;
3074 cmdTimeout = 10;
3075 break;
3076
3077 case READ_BUFFER:
3078 cmdLen = 10;
3079 dir = MPI_SCSIIO_CONTROL_READ;
3080 CDB[0] = cmd;
3081 if (io->flags & MPT_ICFLAG_ECHO) {
3082 CDB[1] = 0x0A;
3083 } else {
3084 CDB[1] = 0x02;
3085 }
3086
3087 if (io->flags & MPT_ICFLAG_BUF_CAP) {
3088 CDB[1] |= 0x01;
3089 }
3090 CDB[6] = (io->size >> 16) & 0xFF;
3091 CDB[7] = (io->size >> 8) & 0xFF;
3092 CDB[8] = io->size & 0xFF;
3093 cmdTimeout = 10;
3094 break;
3095
3096 case WRITE_BUFFER:
3097 cmdLen = 10;
3098 dir = MPI_SCSIIO_CONTROL_WRITE;
3099 CDB[0] = cmd;
3100 if (io->flags & MPT_ICFLAG_ECHO) {
3101 CDB[1] = 0x0A;
3102 } else {
3103 CDB[1] = 0x02;
3104 }
3105 CDB[6] = (io->size >> 16) & 0xFF;
3106 CDB[7] = (io->size >> 8) & 0xFF;
3107 CDB[8] = io->size & 0xFF;
3108 cmdTimeout = 10;
3109 break;
3110
3111 case RESERVE:
3112 cmdLen = 6;
3113 dir = MPI_SCSIIO_CONTROL_READ;
3114 CDB[0] = cmd;
3115 cmdTimeout = 10;
3116 break;
3117
3118 case RELEASE:
3119 cmdLen = 6;
3120 dir = MPI_SCSIIO_CONTROL_READ;
3121 CDB[0] = cmd;
3122 cmdTimeout = 10;
3123 break;
3124
3125 case SYNCHRONIZE_CACHE:
3126 cmdLen = 10;
3127 dir = MPI_SCSIIO_CONTROL_READ;
3128 CDB[0] = cmd;
3129 // CDB[1] = 0x02; /* set immediate bit */
3130 cmdTimeout = 10;
3131 break;
3132
3133 default:
3134 /* Error Case */
3135 return -EFAULT;
3136 }
3137
3138 /* Get and Populate a free Frame
3139 */
3140 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
3141 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "No msg frames!\n",
3142 ioc->name));
3143 return -EBUSY;
3144 }
3145
3146 pScsiReq = (SCSIIORequest_t *) mf;
3147
3148 /* Get the request index */
3149 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
3150 ADD_INDEX_LOG(my_idx); /* for debug */
3151
3152 if (io->flags & MPT_ICFLAG_PHYS_DISK) {
3153 pScsiReq->TargetID = io->physDiskNum;
3154 pScsiReq->Bus = 0;
3155 pScsiReq->ChainOffset = 0;
3156 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3157 } else {
3158 pScsiReq->TargetID = io->id;
3159 pScsiReq->Bus = io->channel;
3160 pScsiReq->ChainOffset = 0;
3161 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
3162 }
3163
3164 pScsiReq->CDBLength = cmdLen;
3165 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
3166
3167 pScsiReq->Reserved = 0;
3168
3169 pScsiReq->MsgFlags = mpt_msg_flags();
3170 /* MsgContext set in mpt_get_msg_fram call */
3171
3172 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
3173
3174 if (io->flags & MPT_ICFLAG_TAGGED_CMD)
3175 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
3176 else
3177 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3178
3179 if (cmd == REQUEST_SENSE) {
3180 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3181 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Untagged! 0x%2x\n",
3182 ioc->name, cmd));
3183 }
3184
3185 for (ii=0; ii < 16; ii++)
3186 pScsiReq->CDB[ii] = CDB[ii];
3187
3188 pScsiReq->DataLength = cpu_to_le32(io->size);
3189 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
3190 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
3191
3192 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Sending Command 0x%x for (%d:%d:%d)\n",
3193 ioc->name, cmd, io->channel, io->id, io->lun));
3194
3195 if (dir == MPI_SCSIIO_CONTROL_READ) {
3196 mpt_add_sge((char *) &pScsiReq->SGL,
3197 MPT_SGE_FLAGS_SSIMPLE_READ | io->size,
3198 io->data_dma);
3199 } else {
3200 mpt_add_sge((char *) &pScsiReq->SGL,
3201 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size,
3202 io->data_dma);
3203 }
3204
3205 /* The ISR will free the request frame, but we need
3206 * the information to initialize the target. Duplicate.
3207 */
3208 memcpy(&ReqCopy, pScsiReq, sizeof(SCSIIORequest_t));
3209
3210 /* Issue this command after:
3211 * finish init
3212 * add timer
3213 * Wait until the reply has been received
3214 * ScsiScanDvCtx callback function will
3215 * set hd->pLocal;
3216 * set scandv_wait_done and call wake_up
3217 */
3218 hd->pLocal = NULL;
3219 hd->timer.expires = jiffies + HZ*cmdTimeout;
3220 hd->scandv_wait_done = 0;
3221
3222 /* Save cmd pointer, for resource free if timeout or
3223 * FW reload occurs
3224 */
3225 hd->cmdPtr = mf;
3226
3227 add_timer(&hd->timer);
3228 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
3229 wait_event(hd->scandv_waitq, hd->scandv_wait_done);
3230
3231 if (hd->pLocal) {
3232 rc = hd->pLocal->completion;
3233 hd->pLocal->skip = 0;
3234
3235 /* Always set fatal error codes in some cases.
3236 */
3237 if (rc == MPT_SCANDV_SELECTION_TIMEOUT)
3238 rc = -ENXIO;
3239 else if (rc == MPT_SCANDV_SOME_ERROR)
3240 rc = -rc;
3241 } else {
3242 rc = -EFAULT;
3243 /* This should never happen. */
3244 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "_do_cmd: Null pLocal!!!\n",
3245 ioc->name));
3246 }
3247
3248 return rc;
3249 }
3250
3251 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3252 /**
3253 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3254 * @hd: Pointer to a SCSI HOST structure
3255 * @vdevice: virtual target device
3256 *
3257 * Uses the ISR, but with special processing.
3258 * MUST be single-threaded.
3259 *
3260 */
3261 static void
3262 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3263 {
3264 INTERNAL_CMD iocmd;
3265
3266 /* Ignore hidden raid components, this is handled when the command
3267 * is sent to the volume
3268 */
3269 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3270 return;
3271
3272 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3273 !vdevice->configured_lun)
3274 return;
3275
3276 /* Following parameters will not change
3277 * in this routine.
3278 */
3279 iocmd.cmd = SYNCHRONIZE_CACHE;
3280 iocmd.flags = 0;
3281 iocmd.physDiskNum = -1;
3282 iocmd.data = NULL;
3283 iocmd.data_dma = -1;
3284 iocmd.size = 0;
3285 iocmd.rsvd = iocmd.rsvd2 = 0;
3286 iocmd.channel = vdevice->vtarget->channel;
3287 iocmd.id = vdevice->vtarget->id;
3288 iocmd.lun = vdevice->lun;
3289
3290 mptscsih_do_cmd(hd, &iocmd);
3291 }
3292
3293 static ssize_t
3294 mptscsih_version_fw_show(struct class_device *cdev, char *buf)
3295 {
3296 struct Scsi_Host *host = class_to_shost(cdev);
3297 MPT_SCSI_HOST *hd = shost_priv(host);
3298 MPT_ADAPTER *ioc = hd->ioc;
3299
3300 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3301 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3302 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3303 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3304 ioc->facts.FWVersion.Word & 0x000000FF);
3305 }
3306 static CLASS_DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3307
3308 static ssize_t
3309 mptscsih_version_bios_show(struct class_device *cdev, char *buf)
3310 {
3311 struct Scsi_Host *host = class_to_shost(cdev);
3312 MPT_SCSI_HOST *hd = shost_priv(host);
3313 MPT_ADAPTER *ioc = hd->ioc;
3314
3315 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3316 (ioc->biosVersion & 0xFF000000) >> 24,
3317 (ioc->biosVersion & 0x00FF0000) >> 16,
3318 (ioc->biosVersion & 0x0000FF00) >> 8,
3319 ioc->biosVersion & 0x000000FF);
3320 }
3321 static CLASS_DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3322
3323 static ssize_t
3324 mptscsih_version_mpi_show(struct class_device *cdev, char *buf)
3325 {
3326 struct Scsi_Host *host = class_to_shost(cdev);
3327 MPT_SCSI_HOST *hd = shost_priv(host);
3328 MPT_ADAPTER *ioc = hd->ioc;
3329
3330 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3331 }
3332 static CLASS_DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3333
3334 static ssize_t
3335 mptscsih_version_product_show(struct class_device *cdev, char *buf)
3336 {
3337 struct Scsi_Host *host = class_to_shost(cdev);
3338 MPT_SCSI_HOST *hd = shost_priv(host);
3339 MPT_ADAPTER *ioc = hd->ioc;
3340
3341 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3342 }
3343 static CLASS_DEVICE_ATTR(version_product, S_IRUGO,
3344 mptscsih_version_product_show, NULL);
3345
3346 static ssize_t
3347 mptscsih_version_nvdata_persistent_show(struct class_device *cdev, char *buf)
3348 {
3349 struct Scsi_Host *host = class_to_shost(cdev);
3350 MPT_SCSI_HOST *hd = shost_priv(host);
3351 MPT_ADAPTER *ioc = hd->ioc;
3352
3353 return snprintf(buf, PAGE_SIZE, "%02xh\n",
3354 ioc->nvdata_version_persistent);
3355 }
3356 static CLASS_DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3357 mptscsih_version_nvdata_persistent_show, NULL);
3358
3359 static ssize_t
3360 mptscsih_version_nvdata_default_show(struct class_device *cdev, char *buf)
3361 {
3362 struct Scsi_Host *host = class_to_shost(cdev);
3363 MPT_SCSI_HOST *hd = shost_priv(host);
3364 MPT_ADAPTER *ioc = hd->ioc;
3365
3366 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3367 }
3368 static CLASS_DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3369 mptscsih_version_nvdata_default_show, NULL);
3370
3371 static ssize_t
3372 mptscsih_board_name_show(struct class_device *cdev, char *buf)
3373 {
3374 struct Scsi_Host *host = class_to_shost(cdev);
3375 MPT_SCSI_HOST *hd = shost_priv(host);
3376 MPT_ADAPTER *ioc = hd->ioc;
3377
3378 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3379 }
3380 static CLASS_DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3381
3382 static ssize_t
3383 mptscsih_board_assembly_show(struct class_device *cdev, char *buf)
3384 {
3385 struct Scsi_Host *host = class_to_shost(cdev);
3386 MPT_SCSI_HOST *hd = shost_priv(host);
3387 MPT_ADAPTER *ioc = hd->ioc;
3388
3389 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3390 }
3391 static CLASS_DEVICE_ATTR(board_assembly, S_IRUGO,
3392 mptscsih_board_assembly_show, NULL);
3393
3394 static ssize_t
3395 mptscsih_board_tracer_show(struct class_device *cdev, char *buf)
3396 {
3397 struct Scsi_Host *host = class_to_shost(cdev);
3398 MPT_SCSI_HOST *hd = shost_priv(host);
3399 MPT_ADAPTER *ioc = hd->ioc;
3400
3401 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3402 }
3403 static CLASS_DEVICE_ATTR(board_tracer, S_IRUGO,
3404 mptscsih_board_tracer_show, NULL);
3405
3406 static ssize_t
3407 mptscsih_io_delay_show(struct class_device *cdev, char *buf)
3408 {
3409 struct Scsi_Host *host = class_to_shost(cdev);
3410 MPT_SCSI_HOST *hd = shost_priv(host);
3411 MPT_ADAPTER *ioc = hd->ioc;
3412
3413 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3414 }
3415 static CLASS_DEVICE_ATTR(io_delay, S_IRUGO,
3416 mptscsih_io_delay_show, NULL);
3417
3418 static ssize_t
3419 mptscsih_device_delay_show(struct class_device *cdev, char *buf)
3420 {
3421 struct Scsi_Host *host = class_to_shost(cdev);
3422 MPT_SCSI_HOST *hd = shost_priv(host);
3423 MPT_ADAPTER *ioc = hd->ioc;
3424
3425 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3426 }
3427 static CLASS_DEVICE_ATTR(device_delay, S_IRUGO,
3428 mptscsih_device_delay_show, NULL);
3429
3430 static ssize_t
3431 mptscsih_debug_level_show(struct class_device *cdev, char *buf)
3432 {
3433 struct Scsi_Host *host = class_to_shost(cdev);
3434 MPT_SCSI_HOST *hd = shost_priv(host);
3435 MPT_ADAPTER *ioc = hd->ioc;
3436
3437 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3438 }
3439 static ssize_t
3440 mptscsih_debug_level_store(struct class_device *cdev, const char *buf,
3441 size_t count)
3442 {
3443 struct Scsi_Host *host = class_to_shost(cdev);
3444 MPT_SCSI_HOST *hd = shost_priv(host);
3445 MPT_ADAPTER *ioc = hd->ioc;
3446 int val = 0;
3447
3448 if (sscanf(buf, "%x", &val) != 1)
3449 return -EINVAL;
3450
3451 ioc->debug_level = val;
3452 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3453 ioc->name, ioc->debug_level);
3454 return strlen(buf);
3455 }
3456 static CLASS_DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3457 mptscsih_debug_level_show, mptscsih_debug_level_store);
3458
3459 struct class_device_attribute *mptscsih_host_attrs[] = {
3460 &class_device_attr_version_fw,
3461 &class_device_attr_version_bios,
3462 &class_device_attr_version_mpi,
3463 &class_device_attr_version_product,
3464 &class_device_attr_version_nvdata_persistent,
3465 &class_device_attr_version_nvdata_default,
3466 &class_device_attr_board_name,
3467 &class_device_attr_board_assembly,
3468 &class_device_attr_board_tracer,
3469 &class_device_attr_io_delay,
3470 &class_device_attr_device_delay,
3471 &class_device_attr_debug_level,
3472 NULL,
3473 };
3474 EXPORT_SYMBOL(mptscsih_host_attrs);
3475
3476 EXPORT_SYMBOL(mptscsih_remove);
3477 EXPORT_SYMBOL(mptscsih_shutdown);
3478 #ifdef CONFIG_PM
3479 EXPORT_SYMBOL(mptscsih_suspend);
3480 EXPORT_SYMBOL(mptscsih_resume);
3481 #endif
3482 EXPORT_SYMBOL(mptscsih_proc_info);
3483 EXPORT_SYMBOL(mptscsih_info);
3484 EXPORT_SYMBOL(mptscsih_qcmd);
3485 EXPORT_SYMBOL(mptscsih_slave_destroy);
3486 EXPORT_SYMBOL(mptscsih_slave_configure);
3487 EXPORT_SYMBOL(mptscsih_abort);
3488 EXPORT_SYMBOL(mptscsih_dev_reset);
3489 EXPORT_SYMBOL(mptscsih_bus_reset);
3490 EXPORT_SYMBOL(mptscsih_host_reset);
3491 EXPORT_SYMBOL(mptscsih_bios_param);
3492 EXPORT_SYMBOL(mptscsih_io_done);
3493 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3494 EXPORT_SYMBOL(mptscsih_scandv_complete);
3495 EXPORT_SYMBOL(mptscsih_event_process);
3496 EXPORT_SYMBOL(mptscsih_ioc_reset);
3497 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3498 EXPORT_SYMBOL(mptscsih_timer_expired);
3499 EXPORT_SYMBOL(mptscsih_TMHandler);
3500
3501 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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