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iwlwifi: introduce host commands callbacks
[linux/fpc-iii.git] / drivers / message / fusion / mptscsih.c
blobc207bda6723b9454aa42875db9397d218e0ff00e
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 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1174
1175 scsi_block_requests(ioc->sh);
1176 flush_scheduled_work();
1177 mptscsih_shutdown(pdev);
1178 return mpt_suspend(pdev,state);
1179 }
1180
1181 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1182 /*
1183 * mptscsih_resume - Fusion MPT scsi driver resume routine.
1184 *
1185 *
1186 */
1187 int
1188 mptscsih_resume(struct pci_dev *pdev)
1189 {
1190 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1191 int rc;
1192
1193 rc = mpt_resume(pdev);
1194 scsi_unblock_requests(ioc->sh);
1195 return rc;
1196 }
1197
1198 #endif
1199
1200 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1201 /**
1202 * mptscsih_info - Return information about MPT adapter
1203 * @SChost: Pointer to Scsi_Host structure
1204 *
1205 * (linux scsi_host_template.info routine)
1206 *
1207 * Returns pointer to buffer where information was written.
1208 */
1209 const char *
1210 mptscsih_info(struct Scsi_Host *SChost)
1211 {
1212 MPT_SCSI_HOST *h;
1213 int size = 0;
1214
1215 h = shost_priv(SChost);
1216
1217 if (h) {
1218 if (h->info_kbuf == NULL)
1219 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1220 return h->info_kbuf;
1221 h->info_kbuf[0] = '\0';
1222
1223 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1224 h->info_kbuf[size-1] = '\0';
1225 }
1226
1227 return h->info_kbuf;
1228 }
1229
1230 struct info_str {
1231 char *buffer;
1232 int length;
1233 int offset;
1234 int pos;
1235 };
1236
1237 static void
1238 mptscsih_copy_mem_info(struct info_str *info, char *data, int len)
1239 {
1240 if (info->pos + len > info->length)
1241 len = info->length - info->pos;
1242
1243 if (info->pos + len < info->offset) {
1244 info->pos += len;
1245 return;
1246 }
1247
1248 if (info->pos < info->offset) {
1249 data += (info->offset - info->pos);
1250 len -= (info->offset - info->pos);
1251 }
1252
1253 if (len > 0) {
1254 memcpy(info->buffer + info->pos, data, len);
1255 info->pos += len;
1256 }
1257 }
1258
1259 static int
1260 mptscsih_copy_info(struct info_str *info, char *fmt, ...)
1261 {
1262 va_list args;
1263 char buf[81];
1264 int len;
1265
1266 va_start(args, fmt);
1267 len = vsprintf(buf, fmt, args);
1268 va_end(args);
1269
1270 mptscsih_copy_mem_info(info, buf, len);
1271 return len;
1272 }
1273
1274 static int
1275 mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len)
1276 {
1277 struct info_str info;
1278
1279 info.buffer = pbuf;
1280 info.length = len;
1281 info.offset = offset;
1282 info.pos = 0;
1283
1284 mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name);
1285 mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1286 mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts);
1287 mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth);
1288
1289 return ((info.pos > info.offset) ? info.pos - info.offset : 0);
1290 }
1291
1292 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1293 /**
1294 * mptscsih_proc_info - Return information about MPT adapter
1295 * @host: scsi host struct
1296 * @buffer: if write, user data; if read, buffer for user
1297 * @start: returns the buffer address
1298 * @offset: if write, 0; if read, the current offset into the buffer from
1299 * the previous read.
1300 * @length: if write, return length;
1301 * @func: write = 1; read = 0
1302 *
1303 * (linux scsi_host_template.info routine)
1304 */
1305 int
1306 mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
1307 int length, int func)
1308 {
1309 MPT_SCSI_HOST *hd = shost_priv(host);
1310 MPT_ADAPTER *ioc = hd->ioc;
1311 int size = 0;
1312
1313 if (func) {
1314 /*
1315 * write is not supported
1316 */
1317 } else {
1318 if (start)
1319 *start = buffer;
1320
1321 size = mptscsih_host_info(ioc, buffer, offset, length);
1322 }
1323
1324 return size;
1325 }
1326
1327 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1328 #define ADD_INDEX_LOG(req_ent) do { } while(0)
1329
1330 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1331 /**
1332 * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1333 * @SCpnt: Pointer to scsi_cmnd structure
1334 * @done: Pointer SCSI mid-layer IO completion function
1335 *
1336 * (linux scsi_host_template.queuecommand routine)
1337 * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest
1338 * from a linux scsi_cmnd request and send it to the IOC.
1339 *
1340 * Returns 0. (rtn value discarded by linux scsi mid-layer)
1341 */
1342 int
1343 mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1344 {
1345 MPT_SCSI_HOST *hd;
1346 MPT_FRAME_HDR *mf;
1347 SCSIIORequest_t *pScsiReq;
1348 VirtDevice *vdevice = SCpnt->device->hostdata;
1349 int lun;
1350 u32 datalen;
1351 u32 scsictl;
1352 u32 scsidir;
1353 u32 cmd_len;
1354 int my_idx;
1355 int ii;
1356 MPT_ADAPTER *ioc;
1357
1358 hd = shost_priv(SCpnt->device->host);
1359 ioc = hd->ioc;
1360 lun = SCpnt->device->lun;
1361 SCpnt->scsi_done = done;
1362
1363 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
1364 ioc->name, SCpnt, done));
1365
1366 if (hd->resetPending) {
1367 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT "qcmd: SCpnt=%p timeout + 60HZ\n",
1368 ioc->name, SCpnt));
1369 return SCSI_MLQUEUE_HOST_BUSY;
1370 }
1371
1372 /*
1373 * Put together a MPT SCSI request...
1374 */
1375 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1376 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1377 ioc->name));
1378 return SCSI_MLQUEUE_HOST_BUSY;
1379 }
1380
1381 pScsiReq = (SCSIIORequest_t *) mf;
1382
1383 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1384
1385 ADD_INDEX_LOG(my_idx);
1386
1387 /* TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1388 * Seems we may receive a buffer (datalen>0) even when there
1389 * will be no data transfer! GRRRRR...
1390 */
1391 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1392 datalen = scsi_bufflen(SCpnt);
1393 scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */
1394 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1395 datalen = scsi_bufflen(SCpnt);
1396 scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */
1397 } else {
1398 datalen = 0;
1399 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1400 }
1401
1402 /* Default to untagged. Once a target structure has been allocated,
1403 * use the Inquiry data to determine if device supports tagged.
1404 */
1405 if (vdevice
1406 && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1407 && (SCpnt->device->tagged_supported)) {
1408 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1409 } else {
1410 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1411 }
1412
1413 /* Use the above information to set up the message frame
1414 */
1415 pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1416 pScsiReq->Bus = vdevice->vtarget->channel;
1417 pScsiReq->ChainOffset = 0;
1418 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
1419 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1420 else
1421 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1422 pScsiReq->CDBLength = SCpnt->cmd_len;
1423 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1424 pScsiReq->Reserved = 0;
1425 pScsiReq->MsgFlags = mpt_msg_flags();
1426 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1427 pScsiReq->Control = cpu_to_le32(scsictl);
1428
1429 /*
1430 * Write SCSI CDB into the message
1431 */
1432 cmd_len = SCpnt->cmd_len;
1433 for (ii=0; ii < cmd_len; ii++)
1434 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1435
1436 for (ii=cmd_len; ii < 16; ii++)
1437 pScsiReq->CDB[ii] = 0;
1438
1439 /* DataLength */
1440 pScsiReq->DataLength = cpu_to_le32(datalen);
1441
1442 /* SenseBuffer low address */
1443 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1444 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1445
1446 /* Now add the SG list
1447 * Always have a SGE even if null length.
1448 */
1449 if (datalen == 0) {
1450 /* Add a NULL SGE */
1451 mptscsih_add_sge((char *)&pScsiReq->SGL, MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1452 (dma_addr_t) -1);
1453 } else {
1454 /* Add a 32 or 64 bit SGE */
1455 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1456 goto fail;
1457 }
1458
1459 SCpnt->host_scribble = (unsigned char *)mf;
1460 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1461
1462 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1463 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1464 ioc->name, SCpnt, mf, my_idx));
1465 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1466 return 0;
1467
1468 fail:
1469 mptscsih_freeChainBuffers(ioc, my_idx);
1470 mpt_free_msg_frame(ioc, mf);
1471 return SCSI_MLQUEUE_HOST_BUSY;
1472 }
1473
1474 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1475 /*
1476 * mptscsih_freeChainBuffers - Function to free chain buffers associated
1477 * with a SCSI IO request
1478 * @hd: Pointer to the MPT_SCSI_HOST instance
1479 * @req_idx: Index of the SCSI IO request frame.
1480 *
1481 * Called if SG chain buffer allocation fails and mptscsih callbacks.
1482 * No return.
1483 */
1484 static void
1485 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1486 {
1487 MPT_FRAME_HDR *chain;
1488 unsigned long flags;
1489 int chain_idx;
1490 int next;
1491
1492 /* Get the first chain index and reset
1493 * tracker state.
1494 */
1495 chain_idx = ioc->ReqToChain[req_idx];
1496 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1497
1498 while (chain_idx != MPT_HOST_NO_CHAIN) {
1499
1500 /* Save the next chain buffer index */
1501 next = ioc->ChainToChain[chain_idx];
1502
1503 /* Free this chain buffer and reset
1504 * tracker
1505 */
1506 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1507
1508 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1509 + (chain_idx * ioc->req_sz));
1510
1511 spin_lock_irqsave(&ioc->FreeQlock, flags);
1512 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1513 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1514
1515 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1516 ioc->name, chain_idx));
1517
1518 /* handle next */
1519 chain_idx = next;
1520 }
1521 return;
1522 }
1523
1524 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1525 /*
1526 * Reset Handling
1527 */
1528
1529 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1530 /**
1531 * mptscsih_TMHandler - Generic handler for SCSI Task Management.
1532 * @hd: Pointer to MPT SCSI HOST structure
1533 * @type: Task Management type
1534 * @channel: channel number for task management
1535 * @id: Logical Target ID for reset (if appropriate)
1536 * @lun: Logical Unit for reset (if appropriate)
1537 * @ctx2abort: Context for the task to be aborted (if appropriate)
1538 * @timeout: timeout for task management control
1539 *
1540 * Fall through to mpt_HardResetHandler if: not operational, too many
1541 * failed TM requests or handshake failure.
1542 *
1543 * Remark: Currently invoked from a non-interrupt thread (_bh).
1544 *
1545 * Note: With old EH code, at most 1 SCSI TaskMgmt function per IOC
1546 * will be active.
1547 *
1548 * Returns 0 for SUCCESS, or %FAILED.
1549 **/
1550 int
1551 mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1552 {
1553 MPT_ADAPTER *ioc;
1554 int rc = -1;
1555 u32 ioc_raw_state;
1556 unsigned long flags;
1557
1558 ioc = hd->ioc;
1559 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler Entered!\n", ioc->name));
1560
1561 // SJR - CHECKME - Can we avoid this here?
1562 // (mpt_HardResetHandler has this check...)
1563 spin_lock_irqsave(&ioc->diagLock, flags);
1564 if ((ioc->diagPending) || (ioc->alt_ioc && ioc->alt_ioc->diagPending)) {
1565 spin_unlock_irqrestore(&ioc->diagLock, flags);
1566 return FAILED;
1567 }
1568 spin_unlock_irqrestore(&ioc->diagLock, flags);
1569
1570 /* Wait a fixed amount of time for the TM pending flag to be cleared.
1571 * If we time out and not bus reset, then we return a FAILED status
1572 * to the caller.
1573 * The call to mptscsih_tm_pending_wait() will set the pending flag
1574 * if we are
1575 * successful. Otherwise, reload the FW.
1576 */
1577 if (mptscsih_tm_pending_wait(hd) == FAILED) {
1578 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1579 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler abort: "
1580 "Timed out waiting for last TM (%d) to complete! \n",
1581 ioc->name, hd->tmPending));
1582 return FAILED;
1583 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET) {
1584 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler target "
1585 "reset: Timed out waiting for last TM (%d) "
1586 "to complete! \n", ioc->name,
1587 hd->tmPending));
1588 return FAILED;
1589 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) {
1590 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler bus reset: "
1591 "Timed out waiting for last TM (%d) to complete! \n",
1592 ioc->name, hd->tmPending));
1593 return FAILED;
1594 }
1595 } else {
1596 spin_lock_irqsave(&ioc->FreeQlock, flags);
1597 hd->tmPending |= (1 << type);
1598 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1599 }
1600
1601 ioc_raw_state = mpt_GetIocState(ioc, 0);
1602
1603 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1604 printk(MYIOC_s_WARN_FMT
1605 "TM Handler for type=%x: IOC Not operational (0x%x)!\n",
1606 ioc->name, type, ioc_raw_state);
1607 printk(MYIOC_s_WARN_FMT " Issuing HardReset!!\n", ioc->name);
1608 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1609 printk(MYIOC_s_WARN_FMT "TMHandler: HardReset "
1610 "FAILED!!\n", ioc->name);
1611 return FAILED;
1612 }
1613
1614 if (ioc_raw_state & MPI_DOORBELL_ACTIVE) {
1615 printk(MYIOC_s_WARN_FMT
1616 "TM Handler for type=%x: ioc_state: "
1617 "DOORBELL_ACTIVE (0x%x)!\n",
1618 ioc->name, type, ioc_raw_state);
1619 return FAILED;
1620 }
1621
1622 /* Isse the Task Mgmt request.
1623 */
1624 if (hd->hard_resets < -1)
1625 hd->hard_resets++;
1626
1627 rc = mptscsih_IssueTaskMgmt(hd, type, channel, id, lun,
1628 ctx2abort, timeout);
1629 if (rc)
1630 printk(MYIOC_s_INFO_FMT "Issue of TaskMgmt failed!\n",
1631 ioc->name);
1632 else
1633 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issue of TaskMgmt Successful!\n",
1634 ioc->name));
1635
1636 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1637 "TMHandler rc = %d!\n", ioc->name, rc));
1638
1639 return rc;
1640 }
1641
1642
1643 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1644 /**
1645 * mptscsih_IssueTaskMgmt - Generic send Task Management function.
1646 * @hd: Pointer to MPT_SCSI_HOST structure
1647 * @type: Task Management type
1648 * @channel: channel number for task management
1649 * @id: Logical Target ID for reset (if appropriate)
1650 * @lun: Logical Unit for reset (if appropriate)
1651 * @ctx2abort: Context for the task to be aborted (if appropriate)
1652 * @timeout: timeout for task management control
1653 *
1654 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1655 * or a non-interrupt thread. In the former, must not call schedule().
1656 *
1657 * Not all fields are meaningfull for all task types.
1658 *
1659 * Returns 0 for SUCCESS, or FAILED.
1660 *
1661 **/
1662 static int
1663 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1664 {
1665 MPT_FRAME_HDR *mf;
1666 SCSITaskMgmt_t *pScsiTm;
1667 int ii;
1668 int retval;
1669 MPT_ADAPTER *ioc = hd->ioc;
1670
1671 /* Return Fail to calling function if no message frames available.
1672 */
1673 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1674 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "IssueTaskMgmt, no msg frames!!\n",
1675 ioc->name));
1676 return FAILED;
1677 }
1678 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "IssueTaskMgmt request @ %p\n",
1679 ioc->name, mf));
1680
1681 /* Format the Request
1682 */
1683 pScsiTm = (SCSITaskMgmt_t *) mf;
1684 pScsiTm->TargetID = id;
1685 pScsiTm->Bus = channel;
1686 pScsiTm->ChainOffset = 0;
1687 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1688
1689 pScsiTm->Reserved = 0;
1690 pScsiTm->TaskType = type;
1691 pScsiTm->Reserved1 = 0;
1692 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1693 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1694
1695 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1696
1697 for (ii=0; ii < 7; ii++)
1698 pScsiTm->Reserved2[ii] = 0;
1699
1700 pScsiTm->TaskMsgContext = ctx2abort;
1701
1702 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "IssueTaskMgmt: ctx2abort (0x%08x) "
1703 "type=%d\n", ioc->name, ctx2abort, type));
1704
1705 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1706
1707 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1708 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1709 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1710 else {
1711 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1712 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1713 if (retval) {
1714 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "send_handshake FAILED!"
1715 " (hd %p, ioc %p, mf %p, rc=%d) \n", ioc->name, hd,
1716 ioc, mf, retval));
1717 goto fail_out;
1718 }
1719 }
1720
1721 if(mptscsih_tm_wait_for_completion(hd, timeout) == FAILED) {
1722 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "task management request TIMED OUT!"
1723 " (hd %p, ioc %p, mf %p) \n", ioc->name, hd,
1724 ioc, mf));
1725 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Calling HardReset! \n",
1726 ioc->name));
1727 retval = mpt_HardResetHandler(ioc, CAN_SLEEP);
1728 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rc=%d \n",
1729 ioc->name, retval));
1730 goto fail_out;
1731 }
1732
1733 /*
1734 * Handle success case, see if theres a non-zero ioc_status.
1735 */
1736 if (hd->tm_iocstatus == MPI_IOCSTATUS_SUCCESS ||
1737 hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
1738 hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
1739 retval = 0;
1740 else
1741 retval = FAILED;
1742
1743 return retval;
1744
1745 fail_out:
1746
1747 /*
1748 * Free task management mf, and corresponding tm flags
1749 */
1750 mpt_free_msg_frame(ioc, mf);
1751 hd->tmPending = 0;
1752 hd->tmState = TM_STATE_NONE;
1753 return FAILED;
1754 }
1755
1756 static int
1757 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1758 {
1759 switch (ioc->bus_type) {
1760 case FC:
1761 return 40;
1762 case SAS:
1763 return 10;
1764 case SPI:
1765 default:
1766 return 2;
1767 }
1768 }
1769
1770 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1771 /**
1772 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1773 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1774 *
1775 * (linux scsi_host_template.eh_abort_handler routine)
1776 *
1777 * Returns SUCCESS or FAILED.
1778 **/
1779 int
1780 mptscsih_abort(struct scsi_cmnd * SCpnt)
1781 {
1782 MPT_SCSI_HOST *hd;
1783 MPT_FRAME_HDR *mf;
1784 u32 ctx2abort;
1785 int scpnt_idx;
1786 int retval;
1787 VirtDevice *vdevice;
1788 ulong sn = SCpnt->serial_number;
1789 MPT_ADAPTER *ioc;
1790
1791 /* If we can't locate our host adapter structure, return FAILED status.
1792 */
1793 if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1794 SCpnt->result = DID_RESET << 16;
1795 SCpnt->scsi_done(SCpnt);
1796 printk(KERN_ERR MYNAM ": task abort: "
1797 "can't locate host! (sc=%p)\n", SCpnt);
1798 return FAILED;
1799 }
1800
1801 ioc = hd->ioc;
1802 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1803 ioc->name, SCpnt);
1804 scsi_print_command(SCpnt);
1805
1806 vdevice = SCpnt->device->hostdata;
1807 if (!vdevice || !vdevice->vtarget) {
1808 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1809 "task abort: device has been deleted (sc=%p)\n",
1810 ioc->name, SCpnt));
1811 SCpnt->result = DID_NO_CONNECT << 16;
1812 SCpnt->scsi_done(SCpnt);
1813 retval = 0;
1814 goto out;
1815 }
1816
1817 /* Task aborts are not supported for hidden raid components.
1818 */
1819 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1820 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1821 "task abort: hidden raid component (sc=%p)\n",
1822 ioc->name, SCpnt));
1823 SCpnt->result = DID_RESET << 16;
1824 retval = FAILED;
1825 goto out;
1826 }
1827
1828 /* Find this command
1829 */
1830 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1831 /* Cmd not found in ScsiLookup.
1832 * Do OS callback.
1833 */
1834 SCpnt->result = DID_RESET << 16;
1835 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1836 "Command not in the active list! (sc=%p)\n", ioc->name,
1837 SCpnt));
1838 retval = 0;
1839 goto out;
1840 }
1841
1842 if (hd->resetPending) {
1843 retval = FAILED;
1844 goto out;
1845 }
1846
1847 if (hd->timeouts < -1)
1848 hd->timeouts++;
1849
1850 /* Most important! Set TaskMsgContext to SCpnt's MsgContext!
1851 * (the IO to be ABORT'd)
1852 *
1853 * NOTE: Since we do not byteswap MsgContext, we do not
1854 * swap it here either. It is an opaque cookie to
1855 * the controller, so it does not matter. -DaveM
1856 */
1857 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1858 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1859
1860 hd->abortSCpnt = SCpnt;
1861
1862 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1863 vdevice->vtarget->channel, vdevice->vtarget->id, vdevice->lun,
1864 ctx2abort, mptscsih_get_tm_timeout(ioc));
1865
1866 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx &&
1867 SCpnt->serial_number == sn)
1868 retval = FAILED;
1869
1870 out:
1871 printk(MYIOC_s_INFO_FMT "task abort: %s (sc=%p)\n",
1872 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1873
1874 if (retval == 0)
1875 return SUCCESS;
1876 else
1877 return FAILED;
1878 }
1879
1880 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1881 /**
1882 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant
1883 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1884 *
1885 * (linux scsi_host_template.eh_dev_reset_handler routine)
1886 *
1887 * Returns SUCCESS or FAILED.
1888 **/
1889 int
1890 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1891 {
1892 MPT_SCSI_HOST *hd;
1893 int retval;
1894 VirtDevice *vdevice;
1895 MPT_ADAPTER *ioc;
1896
1897 /* If we can't locate our host adapter structure, return FAILED status.
1898 */
1899 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1900 printk(KERN_ERR MYNAM ": target reset: "
1901 "Can't locate host! (sc=%p)\n", SCpnt);
1902 return FAILED;
1903 }
1904
1905 ioc = hd->ioc;
1906 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1907 ioc->name, SCpnt);
1908 scsi_print_command(SCpnt);
1909
1910 if (hd->resetPending) {
1911 retval = FAILED;
1912 goto out;
1913 }
1914
1915 vdevice = SCpnt->device->hostdata;
1916 if (!vdevice || !vdevice->vtarget) {
1917 retval = 0;
1918 goto out;
1919 }
1920
1921 /* Target reset to hidden raid component is not supported
1922 */
1923 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1924 retval = FAILED;
1925 goto out;
1926 }
1927
1928 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1929 vdevice->vtarget->channel, vdevice->vtarget->id, 0, 0,
1930 mptscsih_get_tm_timeout(ioc));
1931
1932 out:
1933 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1934 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1935
1936 if (retval == 0)
1937 return SUCCESS;
1938 else
1939 return FAILED;
1940 }
1941
1942
1943 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1944 /**
1945 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant
1946 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1947 *
1948 * (linux scsi_host_template.eh_bus_reset_handler routine)
1949 *
1950 * Returns SUCCESS or FAILED.
1951 **/
1952 int
1953 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1954 {
1955 MPT_SCSI_HOST *hd;
1956 int retval;
1957 VirtDevice *vdevice;
1958 MPT_ADAPTER *ioc;
1959
1960 /* If we can't locate our host adapter structure, return FAILED status.
1961 */
1962 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1963 printk(KERN_ERR MYNAM ": bus reset: "
1964 "Can't locate host! (sc=%p)\n", SCpnt);
1965 return FAILED;
1966 }
1967
1968 ioc = hd->ioc;
1969 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1970 ioc->name, SCpnt);
1971 scsi_print_command(SCpnt);
1972
1973 if (hd->timeouts < -1)
1974 hd->timeouts++;
1975
1976 vdevice = SCpnt->device->hostdata;
1977 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1978 vdevice->vtarget->channel, 0, 0, 0, mptscsih_get_tm_timeout(ioc));
1979
1980 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1981 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1982
1983 if (retval == 0)
1984 return SUCCESS;
1985 else
1986 return FAILED;
1987 }
1988
1989 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1990 /**
1991 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1992 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1993 *
1994 * (linux scsi_host_template.eh_host_reset_handler routine)
1995 *
1996 * Returns SUCCESS or FAILED.
1997 */
1998 int
1999 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
2000 {
2001 MPT_SCSI_HOST * hd;
2002 int retval;
2003 MPT_ADAPTER *ioc;
2004
2005 /* If we can't locate the host to reset, then we failed. */
2006 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
2007 printk(KERN_ERR MYNAM ": host reset: "
2008 "Can't locate host! (sc=%p)\n", SCpnt);
2009 return FAILED;
2010 }
2011
2012 ioc = hd->ioc;
2013 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
2014 ioc->name, SCpnt);
2015
2016 /* If our attempts to reset the host failed, then return a failed
2017 * status. The host will be taken off line by the SCSI mid-layer.
2018 */
2019 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0) {
2020 retval = FAILED;
2021 } else {
2022 /* Make sure TM pending is cleared and TM state is set to
2023 * NONE.
2024 */
2025 retval = 0;
2026 hd->tmPending = 0;
2027 hd->tmState = TM_STATE_NONE;
2028 }
2029
2030 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
2031 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
2032
2033 return retval;
2034 }
2035
2036 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2037 /**
2038 * mptscsih_tm_pending_wait - wait for pending task management request to complete
2039 * @hd: Pointer to MPT host structure.
2040 *
2041 * Returns {SUCCESS,FAILED}.
2042 */
2043 static int
2044 mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd)
2045 {
2046 unsigned long flags;
2047 int loop_count = 4 * 10; /* Wait 10 seconds */
2048 int status = FAILED;
2049 MPT_ADAPTER *ioc = hd->ioc;
2050
2051 do {
2052 spin_lock_irqsave(&ioc->FreeQlock, flags);
2053 if (hd->tmState == TM_STATE_NONE) {
2054 hd->tmState = TM_STATE_IN_PROGRESS;
2055 hd->tmPending = 1;
2056 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2057 status = SUCCESS;
2058 break;
2059 }
2060 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2061 msleep(250);
2062 } while (--loop_count);
2063
2064 return status;
2065 }
2066
2067 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2068 /**
2069 * mptscsih_tm_wait_for_completion - wait for completion of TM task
2070 * @hd: Pointer to MPT host structure.
2071 * @timeout: timeout value
2072 *
2073 * Returns {SUCCESS,FAILED}.
2074 */
2075 static int
2076 mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout )
2077 {
2078 unsigned long flags;
2079 int loop_count = 4 * timeout;
2080 int status = FAILED;
2081 MPT_ADAPTER *ioc = hd->ioc;
2082
2083 do {
2084 spin_lock_irqsave(&ioc->FreeQlock, flags);
2085 if(hd->tmPending == 0) {
2086 status = SUCCESS;
2087 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2088 break;
2089 }
2090 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2091 msleep(250);
2092 } while (--loop_count);
2093
2094 return status;
2095 }
2096
2097 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2098 static void
2099 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2100 {
2101 char *desc;
2102
2103 switch (response_code) {
2104 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2105 desc = "The task completed.";
2106 break;
2107 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2108 desc = "The IOC received an invalid frame status.";
2109 break;
2110 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2111 desc = "The task type is not supported.";
2112 break;
2113 case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2114 desc = "The requested task failed.";
2115 break;
2116 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2117 desc = "The task completed successfully.";
2118 break;
2119 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2120 desc = "The LUN request is invalid.";
2121 break;
2122 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2123 desc = "The task is in the IOC queue and has not been sent to target.";
2124 break;
2125 default:
2126 desc = "unknown";
2127 break;
2128 }
2129 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2130 ioc->name, response_code, desc);
2131 }
2132
2133 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2134 /**
2135 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2136 * @ioc: Pointer to MPT_ADAPTER structure
2137 * @mf: Pointer to SCSI task mgmt request frame
2138 * @mr: Pointer to SCSI task mgmt reply frame
2139 *
2140 * This routine is called from mptbase.c::mpt_interrupt() at the completion
2141 * of any SCSI task management request.
2142 * This routine is registered with the MPT (base) driver at driver
2143 * load/init time via the mpt_register() API call.
2144 *
2145 * Returns 1 indicating alloc'd request frame ptr should be freed.
2146 **/
2147 int
2148 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2149 {
2150 SCSITaskMgmtReply_t *pScsiTmReply;
2151 SCSITaskMgmt_t *pScsiTmReq;
2152 MPT_SCSI_HOST *hd;
2153 unsigned long flags;
2154 u16 iocstatus;
2155 u8 tmType;
2156 u32 termination_count;
2157
2158 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt completed (mf=%p,mr=%p)\n",
2159 ioc->name, mf, mr));
2160 if (!ioc->sh) {
2161 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
2162 "TaskMgmt Complete: NULL Scsi Host Ptr\n", ioc->name));
2163 return 1;
2164 }
2165
2166 if (mr == NULL) {
2167 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
2168 "ERROR! TaskMgmt Reply: NULL Request %p\n", ioc->name, mf));
2169 return 1;
2170 }
2171
2172 hd = shost_priv(ioc->sh);
2173 pScsiTmReply = (SCSITaskMgmtReply_t*)mr;
2174 pScsiTmReq = (SCSITaskMgmt_t*)mf;
2175 tmType = pScsiTmReq->TaskType;
2176 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2177 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
2178
2179 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
2180 pScsiTmReply->ResponseCode)
2181 mptscsih_taskmgmt_response_code(ioc,
2182 pScsiTmReply->ResponseCode);
2183 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
2184
2185 #ifdef CONFIG_FUSION_LOGGING
2186 if ((ioc->debug_level & MPT_DEBUG_REPLY) ||
2187 (ioc->debug_level & MPT_DEBUG_TM ))
2188 printk("%s: ha=%d [%d:%d:0] task_type=0x%02X "
2189 "iocstatus=0x%04X\n\tloginfo=0x%08X response_code=0x%02X "
2190 "term_cmnds=%d\n", __FUNCTION__, ioc->id, pScsiTmReply->Bus,
2191 pScsiTmReply->TargetID, pScsiTmReq->TaskType,
2192 le16_to_cpu(pScsiTmReply->IOCStatus),
2193 le32_to_cpu(pScsiTmReply->IOCLogInfo),pScsiTmReply->ResponseCode,
2194 le32_to_cpu(pScsiTmReply->TerminationCount));
2195 #endif
2196 if (!iocstatus) {
2197 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT " TaskMgmt SUCCESS\n", ioc->name));
2198 hd->abortSCpnt = NULL;
2199 goto out;
2200 }
2201
2202 /* Error? (anything non-zero?) */
2203
2204 /* clear flags and continue.
2205 */
2206 switch (tmType) {
2207
2208 case MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2209 if (termination_count == 1)
2210 iocstatus = MPI_IOCSTATUS_SCSI_TASK_TERMINATED;
2211 hd->abortSCpnt = NULL;
2212 break;
2213
2214 case MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS:
2215
2216 /* If an internal command is present
2217 * or the TM failed - reload the FW.
2218 * FC FW may respond FAILED to an ABORT
2219 */
2220 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED ||
2221 hd->cmdPtr)
2222 if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0)
2223 printk(MYIOC_s_WARN_FMT " Firmware Reload FAILED!!\n", ioc->name);
2224 break;
2225
2226 case MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2227 default:
2228 break;
2229 }
2230
2231 out:
2232 spin_lock_irqsave(&ioc->FreeQlock, flags);
2233 hd->tmPending = 0;
2234 hd->tmState = TM_STATE_NONE;
2235 hd->tm_iocstatus = iocstatus;
2236 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2237
2238 return 1;
2239 }
2240
2241 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2242 /*
2243 * This is anyones guess quite frankly.
2244 */
2245 int
2246 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2247 sector_t capacity, int geom[])
2248 {
2249 int heads;
2250 int sectors;
2251 sector_t cylinders;
2252 ulong dummy;
2253
2254 heads = 64;
2255 sectors = 32;
2256
2257 dummy = heads * sectors;
2258 cylinders = capacity;
2259 sector_div(cylinders,dummy);
2260
2261 /*
2262 * Handle extended translation size for logical drives
2263 * > 1Gb
2264 */
2265 if ((ulong)capacity >= 0x200000) {
2266 heads = 255;
2267 sectors = 63;
2268 dummy = heads * sectors;
2269 cylinders = capacity;
2270 sector_div(cylinders,dummy);
2271 }
2272
2273 /* return result */
2274 geom[0] = heads;
2275 geom[1] = sectors;
2276 geom[2] = cylinders;
2277
2278 return 0;
2279 }
2280
2281 /* Search IOC page 3 to determine if this is hidden physical disk
2282 *
2283 */
2284 int
2285 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2286 {
2287 struct inactive_raid_component_info *component_info;
2288 int i;
2289 int rc = 0;
2290
2291 if (!ioc->raid_data.pIocPg3)
2292 goto out;
2293 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2294 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2295 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2296 rc = 1;
2297 goto out;
2298 }
2299 }
2300
2301 /*
2302 * Check inactive list for matching phys disks
2303 */
2304 if (list_empty(&ioc->raid_data.inactive_list))
2305 goto out;
2306
2307 down(&ioc->raid_data.inactive_list_mutex);
2308 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2309 list) {
2310 if ((component_info->d.PhysDiskID == id) &&
2311 (component_info->d.PhysDiskBus == channel))
2312 rc = 1;
2313 }
2314 up(&ioc->raid_data.inactive_list_mutex);
2315
2316 out:
2317 return rc;
2318 }
2319 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2320
2321 u8
2322 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2323 {
2324 struct inactive_raid_component_info *component_info;
2325 int i;
2326 int rc = -ENXIO;
2327
2328 if (!ioc->raid_data.pIocPg3)
2329 goto out;
2330 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2331 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2332 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2333 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2334 goto out;
2335 }
2336 }
2337
2338 /*
2339 * Check inactive list for matching phys disks
2340 */
2341 if (list_empty(&ioc->raid_data.inactive_list))
2342 goto out;
2343
2344 down(&ioc->raid_data.inactive_list_mutex);
2345 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2346 list) {
2347 if ((component_info->d.PhysDiskID == id) &&
2348 (component_info->d.PhysDiskBus == channel))
2349 rc = component_info->d.PhysDiskNum;
2350 }
2351 up(&ioc->raid_data.inactive_list_mutex);
2352
2353 out:
2354 return rc;
2355 }
2356 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2357
2358 /*
2359 * OS entry point to allow for host driver to free allocated memory
2360 * Called if no device present or device being unloaded
2361 */
2362 void
2363 mptscsih_slave_destroy(struct scsi_device *sdev)
2364 {
2365 struct Scsi_Host *host = sdev->host;
2366 MPT_SCSI_HOST *hd = shost_priv(host);
2367 VirtTarget *vtarget;
2368 VirtDevice *vdevice;
2369 struct scsi_target *starget;
2370
2371 starget = scsi_target(sdev);
2372 vtarget = starget->hostdata;
2373 vdevice = sdev->hostdata;
2374
2375 mptscsih_search_running_cmds(hd, vdevice);
2376 vtarget->num_luns--;
2377 mptscsih_synchronize_cache(hd, vdevice);
2378 kfree(vdevice);
2379 sdev->hostdata = NULL;
2380 }
2381
2382 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2383 /*
2384 * mptscsih_change_queue_depth - This function will set a devices queue depth
2385 * @sdev: per scsi_device pointer
2386 * @qdepth: requested queue depth
2387 *
2388 * Adding support for new 'change_queue_depth' api.
2389 */
2390 int
2391 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
2392 {
2393 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
2394 VirtTarget *vtarget;
2395 struct scsi_target *starget;
2396 int max_depth;
2397 int tagged;
2398 MPT_ADAPTER *ioc = hd->ioc;
2399
2400 starget = scsi_target(sdev);
2401 vtarget = starget->hostdata;
2402
2403 if (ioc->bus_type == SPI) {
2404 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2405 max_depth = 1;
2406 else if (sdev->type == TYPE_DISK &&
2407 vtarget->minSyncFactor <= MPT_ULTRA160)
2408 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2409 else
2410 max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2411 } else
2412 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2413
2414 if (qdepth > max_depth)
2415 qdepth = max_depth;
2416 if (qdepth == 1)
2417 tagged = 0;
2418 else
2419 tagged = MSG_SIMPLE_TAG;
2420
2421 scsi_adjust_queue_depth(sdev, tagged, qdepth);
2422 return sdev->queue_depth;
2423 }
2424
2425 /*
2426 * OS entry point to adjust the queue_depths on a per-device basis.
2427 * Called once per device the bus scan. Use it to force the queue_depth
2428 * member to 1 if a device does not support Q tags.
2429 * Return non-zero if fails.
2430 */
2431 int
2432 mptscsih_slave_configure(struct scsi_device *sdev)
2433 {
2434 struct Scsi_Host *sh = sdev->host;
2435 VirtTarget *vtarget;
2436 VirtDevice *vdevice;
2437 struct scsi_target *starget;
2438 MPT_SCSI_HOST *hd = shost_priv(sh);
2439 MPT_ADAPTER *ioc = hd->ioc;
2440
2441 starget = scsi_target(sdev);
2442 vtarget = starget->hostdata;
2443 vdevice = sdev->hostdata;
2444
2445 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2446 "device @ %p, channel=%d, id=%d, lun=%d\n",
2447 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2448 if (ioc->bus_type == SPI)
2449 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2450 "sdtr %d wdtr %d ppr %d inq length=%d\n",
2451 ioc->name, sdev->sdtr, sdev->wdtr,
2452 sdev->ppr, sdev->inquiry_len));
2453
2454 if (sdev->id > sh->max_id) {
2455 /* error case, should never happen */
2456 scsi_adjust_queue_depth(sdev, 0, 1);
2457 goto slave_configure_exit;
2458 }
2459
2460 vdevice->configured_lun = 1;
2461 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
2462
2463 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2464 "Queue depth=%d, tflags=%x\n",
2465 ioc->name, sdev->queue_depth, vtarget->tflags));
2466
2467 if (ioc->bus_type == SPI)
2468 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2469 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2470 ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2471 vtarget->minSyncFactor));
2472
2473 slave_configure_exit:
2474
2475 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2476 "tagged %d, simple %d, ordered %d\n",
2477 ioc->name,sdev->tagged_supported, sdev->simple_tags,
2478 sdev->ordered_tags));
2479
2480 return 0;
2481 }
2482
2483 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2484 /*
2485 * Private routines...
2486 */
2487
2488 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2489 /* Utility function to copy sense data from the scsi_cmnd buffer
2490 * to the FC and SCSI target structures.
2491 *
2492 */
2493 static void
2494 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2495 {
2496 VirtDevice *vdevice;
2497 SCSIIORequest_t *pReq;
2498 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount);
2499 MPT_ADAPTER *ioc = hd->ioc;
2500
2501 /* Get target structure
2502 */
2503 pReq = (SCSIIORequest_t *) mf;
2504 vdevice = sc->device->hostdata;
2505
2506 if (sense_count) {
2507 u8 *sense_data;
2508 int req_index;
2509
2510 /* Copy the sense received into the scsi command block. */
2511 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2512 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2513 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2514
2515 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2516 */
2517 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2518 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2519 int idx;
2520
2521 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2522 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2523 ioc->events[idx].eventContext = ioc->eventContext;
2524
2525 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2526 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2527 (sc->device->channel << 8) | sc->device->id;
2528
2529 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2530
2531 ioc->eventContext++;
2532 if (ioc->pcidev->vendor ==
2533 PCI_VENDOR_ID_IBM) {
2534 mptscsih_issue_sep_command(ioc,
2535 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2536 vdevice->vtarget->tflags |=
2537 MPT_TARGET_FLAGS_LED_ON;
2538 }
2539 }
2540 }
2541 } else {
2542 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2543 ioc->name));
2544 }
2545 }
2546
2547 /**
2548 * mptscsih_get_scsi_lookup
2549 * @ioc: Pointer to MPT_ADAPTER structure
2550 * @i: index into the array
2551 *
2552 * retrieves scmd entry from ScsiLookup[] array list
2553 *
2554 * Returns the scsi_cmd pointer
2555 **/
2556 static struct scsi_cmnd *
2557 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2558 {
2559 unsigned long flags;
2560 struct scsi_cmnd *scmd;
2561
2562 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2563 scmd = ioc->ScsiLookup[i];
2564 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2565
2566 return scmd;
2567 }
2568
2569 /**
2570 * mptscsih_getclear_scsi_lookup
2571 * @ioc: Pointer to MPT_ADAPTER structure
2572 * @i: index into the array
2573 *
2574 * retrieves and clears scmd entry from ScsiLookup[] array list
2575 *
2576 * Returns the scsi_cmd pointer
2577 **/
2578 static struct scsi_cmnd *
2579 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2580 {
2581 unsigned long flags;
2582 struct scsi_cmnd *scmd;
2583
2584 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2585 scmd = ioc->ScsiLookup[i];
2586 ioc->ScsiLookup[i] = NULL;
2587 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2588
2589 return scmd;
2590 }
2591
2592 /**
2593 * mptscsih_set_scsi_lookup
2594 *
2595 * writes a scmd entry into the ScsiLookup[] array list
2596 *
2597 * @ioc: Pointer to MPT_ADAPTER structure
2598 * @i: index into the array
2599 * @scmd: scsi_cmnd pointer
2600 *
2601 **/
2602 static void
2603 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2604 {
2605 unsigned long flags;
2606
2607 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2608 ioc->ScsiLookup[i] = scmd;
2609 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2610 }
2611
2612 /**
2613 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2614 * @ioc: Pointer to MPT_ADAPTER structure
2615 * @sc: scsi_cmnd pointer
2616 */
2617 static int
2618 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2619 {
2620 unsigned long flags;
2621 int i, index=-1;
2622
2623 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2624 for (i = 0; i < ioc->req_depth; i++) {
2625 if (ioc->ScsiLookup[i] == sc) {
2626 index = i;
2627 goto out;
2628 }
2629 }
2630
2631 out:
2632 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2633 return index;
2634 }
2635
2636 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2637 int
2638 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2639 {
2640 MPT_SCSI_HOST *hd;
2641 unsigned long flags;
2642
2643 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2644 ": IOC %s_reset routed to SCSI host driver!\n",
2645 ioc->name, reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
2646 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
2647
2648 /* If a FW reload request arrives after base installed but
2649 * before all scsi hosts have been attached, then an alt_ioc
2650 * may have a NULL sh pointer.
2651 */
2652 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2653 return 0;
2654 else
2655 hd = shost_priv(ioc->sh);
2656
2657 if (reset_phase == MPT_IOC_SETUP_RESET) {
2658 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Setup-Diag Reset\n", ioc->name));
2659
2660 /* Clean Up:
2661 * 1. Set Hard Reset Pending Flag
2662 * All new commands go to doneQ
2663 */
2664 hd->resetPending = 1;
2665
2666 } else if (reset_phase == MPT_IOC_PRE_RESET) {
2667 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Pre-Diag Reset\n", ioc->name));
2668
2669 /* 2. Flush running commands
2670 * Clean ScsiLookup (and associated memory)
2671 * AND clean mytaskQ
2672 */
2673
2674 /* 2b. Reply to OS all known outstanding I/O commands.
2675 */
2676 mptscsih_flush_running_cmds(hd);
2677
2678 /* 2c. If there was an internal command that
2679 * has not completed, configuration or io request,
2680 * free these resources.
2681 */
2682 if (hd->cmdPtr) {
2683 del_timer(&hd->timer);
2684 mpt_free_msg_frame(ioc, hd->cmdPtr);
2685 }
2686
2687 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Pre-Reset complete.\n", ioc->name));
2688
2689 } else {
2690 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Post-Diag Reset\n", ioc->name));
2691
2692 /* Once a FW reload begins, all new OS commands are
2693 * redirected to the doneQ w/ a reset status.
2694 * Init all control structures.
2695 */
2696
2697 /* 2. Chain Buffer initialization
2698 */
2699
2700 /* 4. Renegotiate to all devices, if SPI
2701 */
2702
2703 /* 5. Enable new commands to be posted
2704 */
2705 spin_lock_irqsave(&ioc->FreeQlock, flags);
2706 hd->tmPending = 0;
2707 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2708 hd->resetPending = 0;
2709 hd->tmState = TM_STATE_NONE;
2710
2711 /* 6. If there was an internal command,
2712 * wake this process up.
2713 */
2714 if (hd->cmdPtr) {
2715 /*
2716 * Wake up the original calling thread
2717 */
2718 hd->pLocal = &hd->localReply;
2719 hd->pLocal->completion = MPT_SCANDV_DID_RESET;
2720 hd->scandv_wait_done = 1;
2721 wake_up(&hd->scandv_waitq);
2722 hd->cmdPtr = NULL;
2723 }
2724
2725 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Post-Reset complete.\n", ioc->name));
2726
2727 }
2728
2729 return 1; /* currently means nothing really */
2730 }
2731
2732 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2733 int
2734 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2735 {
2736 MPT_SCSI_HOST *hd;
2737 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2738
2739 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
2740 ioc->name, event));
2741
2742 if (ioc->sh == NULL ||
2743 ((hd = shost_priv(ioc->sh)) == NULL))
2744 return 1;
2745
2746 switch (event) {
2747 case MPI_EVENT_UNIT_ATTENTION: /* 03 */
2748 /* FIXME! */
2749 break;
2750 case MPI_EVENT_IOC_BUS_RESET: /* 04 */
2751 case MPI_EVENT_EXT_BUS_RESET: /* 05 */
2752 if (hd && (ioc->bus_type == SPI) && (hd->soft_resets < -1))
2753 hd->soft_resets++;
2754 break;
2755 case MPI_EVENT_LOGOUT: /* 09 */
2756 /* FIXME! */
2757 break;
2758
2759 case MPI_EVENT_RESCAN: /* 06 */
2760 break;
2761
2762 /*
2763 * CHECKME! Don't think we need to do
2764 * anything for these, but...
2765 */
2766 case MPI_EVENT_LINK_STATUS_CHANGE: /* 07 */
2767 case MPI_EVENT_LOOP_STATE_CHANGE: /* 08 */
2768 /*
2769 * CHECKME! Falling thru...
2770 */
2771 break;
2772
2773 case MPI_EVENT_INTEGRATED_RAID: /* 0B */
2774 break;
2775
2776 case MPI_EVENT_NONE: /* 00 */
2777 case MPI_EVENT_LOG_DATA: /* 01 */
2778 case MPI_EVENT_STATE_CHANGE: /* 02 */
2779 case MPI_EVENT_EVENT_CHANGE: /* 0A */
2780 default:
2781 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": Ignoring event (=%02Xh)\n",
2782 ioc->name, event));
2783 break;
2784 }
2785
2786 return 1; /* currently means nothing really */
2787 }
2788
2789 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2790 /*
2791 * Bus Scan and Domain Validation functionality ...
2792 */
2793
2794 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2795 /*
2796 * mptscsih_scandv_complete - Scan and DV callback routine registered
2797 * to Fustion MPT (base) driver.
2798 *
2799 * @ioc: Pointer to MPT_ADAPTER structure
2800 * @mf: Pointer to original MPT request frame
2801 * @mr: Pointer to MPT reply frame (NULL if TurboReply)
2802 *
2803 * This routine is called from mpt.c::mpt_interrupt() at the completion
2804 * of any SCSI IO request.
2805 * This routine is registered with the Fusion MPT (base) driver at driver
2806 * load/init time via the mpt_register() API call.
2807 *
2808 * Returns 1 indicating alloc'd request frame ptr should be freed.
2809 *
2810 * Remark: Sets a completion code and (possibly) saves sense data
2811 * in the IOC member localReply structure.
2812 * Used ONLY for DV and other internal commands.
2813 */
2814 int
2815 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2816 {
2817 MPT_SCSI_HOST *hd;
2818 SCSIIORequest_t *pReq;
2819 int completionCode;
2820 u16 req_idx;
2821
2822 hd = shost_priv(ioc->sh);
2823
2824 if ((mf == NULL) ||
2825 (mf >= MPT_INDEX_2_MFPTR(ioc, ioc->req_depth))) {
2826 printk(MYIOC_s_ERR_FMT
2827 "ScanDvComplete, %s req frame ptr! (=%p)\n",
2828 ioc->name, mf?"BAD":"NULL", (void *) mf);
2829 goto wakeup;
2830 }
2831
2832 del_timer(&hd->timer);
2833 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2834 mptscsih_set_scsi_lookup(ioc, req_idx, NULL);
2835 pReq = (SCSIIORequest_t *) mf;
2836
2837 if (mf != hd->cmdPtr) {
2838 printk(MYIOC_s_WARN_FMT "ScanDvComplete (mf=%p, cmdPtr=%p, idx=%d)\n",
2839 ioc->name, (void *)mf, (void *) hd->cmdPtr, req_idx);
2840 }
2841 hd->cmdPtr = NULL;
2842
2843 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScanDvComplete (mf=%p,mr=%p,idx=%d)\n",
2844 ioc->name, mf, mr, req_idx));
2845
2846 hd->pLocal = &hd->localReply;
2847 hd->pLocal->scsiStatus = 0;
2848
2849 /* If target struct exists, clear sense valid flag.
2850 */
2851 if (mr == NULL) {
2852 completionCode = MPT_SCANDV_GOOD;
2853 } else {
2854 SCSIIOReply_t *pReply;
2855 u16 status;
2856 u8 scsi_status;
2857
2858 pReply = (SCSIIOReply_t *) mr;
2859
2860 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2861 scsi_status = pReply->SCSIStatus;
2862
2863
2864 switch(status) {
2865
2866 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
2867 completionCode = MPT_SCANDV_SELECTION_TIMEOUT;
2868 break;
2869
2870 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
2871 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
2872 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
2873 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
2874 completionCode = MPT_SCANDV_DID_RESET;
2875 break;
2876
2877 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
2878 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
2879 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
2880 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2881 ConfigReply_t *pr = (ConfigReply_t *)mr;
2882 completionCode = MPT_SCANDV_GOOD;
2883 hd->pLocal->header.PageVersion = pr->Header.PageVersion;
2884 hd->pLocal->header.PageLength = pr->Header.PageLength;
2885 hd->pLocal->header.PageNumber = pr->Header.PageNumber;
2886 hd->pLocal->header.PageType = pr->Header.PageType;
2887
2888 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2889 /* If the RAID Volume request is successful,
2890 * return GOOD, else indicate that
2891 * some type of error occurred.
2892 */
2893 MpiRaidActionReply_t *pr = (MpiRaidActionReply_t *)mr;
2894 if (le16_to_cpu(pr->ActionStatus) == MPI_RAID_ACTION_ASTATUS_SUCCESS)
2895 completionCode = MPT_SCANDV_GOOD;
2896 else
2897 completionCode = MPT_SCANDV_SOME_ERROR;
2898 memcpy(hd->pLocal->sense, pr, sizeof(hd->pLocal->sense));
2899
2900 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
2901 u8 *sense_data;
2902 int sz;
2903
2904 /* save sense data in global structure
2905 */
2906 completionCode = MPT_SCANDV_SENSE;
2907 hd->pLocal->scsiStatus = scsi_status;
2908 sense_data = ((u8 *)ioc->sense_buf_pool +
2909 (req_idx * MPT_SENSE_BUFFER_ALLOC));
2910
2911 sz = min_t(int, pReq->SenseBufferLength,
2912 SCSI_STD_SENSE_BYTES);
2913 memcpy(hd->pLocal->sense, sense_data, sz);
2914
2915 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Check Condition, sense ptr %p\n",
2916 ioc->name, sense_data));
2917 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2918 if (pReq->CDB[0] == INQUIRY)
2919 completionCode = MPT_SCANDV_ISSUE_SENSE;
2920 else
2921 completionCode = MPT_SCANDV_DID_RESET;
2922 }
2923 else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2924 completionCode = MPT_SCANDV_DID_RESET;
2925 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2926 completionCode = MPT_SCANDV_DID_RESET;
2927 else {
2928 completionCode = MPT_SCANDV_GOOD;
2929 hd->pLocal->scsiStatus = scsi_status;
2930 }
2931 break;
2932
2933 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
2934 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2935 completionCode = MPT_SCANDV_DID_RESET;
2936 else
2937 completionCode = MPT_SCANDV_SOME_ERROR;
2938 break;
2939
2940 default:
2941 completionCode = MPT_SCANDV_SOME_ERROR;
2942 break;
2943
2944 } /* switch(status) */
2945
2946 } /* end of address reply case */
2947
2948 hd->pLocal->completion = completionCode;
2949
2950 /* MF and RF are freed in mpt_interrupt
2951 */
2952 wakeup:
2953 /* Free Chain buffers (will never chain) in scan or dv */
2954 //mptscsih_freeChainBuffers(ioc, req_idx);
2955
2956 /*
2957 * Wake up the original calling thread
2958 */
2959 hd->scandv_wait_done = 1;
2960 wake_up(&hd->scandv_waitq);
2961
2962 return 1;
2963 }
2964
2965 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2966 /* mptscsih_timer_expired - Call back for timer process.
2967 * Used only for dv functionality.
2968 * @data: Pointer to MPT_SCSI_HOST recast as an unsigned long
2969 *
2970 */
2971 void
2972 mptscsih_timer_expired(unsigned long data)
2973 {
2974 MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *) data;
2975 MPT_ADAPTER *ioc = hd->ioc;
2976
2977 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Timer Expired! Cmd %p\n", ioc->name, hd->cmdPtr));
2978
2979 if (hd->cmdPtr) {
2980 MPIHeader_t *cmd = (MPIHeader_t *)hd->cmdPtr;
2981
2982 if (cmd->Function == MPI_FUNCTION_SCSI_IO_REQUEST) {
2983 /* Desire to issue a task management request here.
2984 * TM requests MUST be single threaded.
2985 * If old eh code and no TM current, issue request.
2986 * If new eh code, do nothing. Wait for OS cmd timeout
2987 * for bus reset.
2988 */
2989 } else {
2990 /* Perform a FW reload */
2991 if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0) {
2992 printk(MYIOC_s_WARN_FMT "Firmware Reload FAILED!\n", ioc->name);
2993 }
2994 }
2995 } else {
2996 /* This should NEVER happen */
2997 printk(MYIOC_s_WARN_FMT "Null cmdPtr!!!!\n", ioc->name);
2998 }
2999
3000 /* No more processing.
3001 * TM call will generate an interrupt for SCSI TM Management.
3002 * The FW will reply to all outstanding commands, callback will finish cleanup.
3003 * Hard reset clean-up will free all resources.
3004 */
3005 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Timer Expired Complete!\n", ioc->name));
3006
3007 return;
3008 }
3009
3010
3011 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3012 /**
3013 * mptscsih_do_cmd - Do internal command.
3014 * @hd: MPT_SCSI_HOST pointer
3015 * @io: INTERNAL_CMD pointer.
3016 *
3017 * Issue the specified internally generated command and do command
3018 * specific cleanup. For bus scan / DV only.
3019 * NOTES: If command is Inquiry and status is good,
3020 * initialize a target structure, save the data
3021 *
3022 * Remark: Single threaded access only.
3023 *
3024 * Return:
3025 * < 0 if an illegal command or no resources
3026 *
3027 * 0 if good
3028 *
3029 * > 0 if command complete but some type of completion error.
3030 */
3031 static int
3032 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
3033 {
3034 MPT_FRAME_HDR *mf;
3035 SCSIIORequest_t *pScsiReq;
3036 SCSIIORequest_t ReqCopy;
3037 int my_idx, ii, dir;
3038 int rc, cmdTimeout;
3039 int in_isr;
3040 char cmdLen;
3041 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
3042 char cmd = io->cmd;
3043 MPT_ADAPTER *ioc = hd->ioc;
3044
3045 in_isr = in_interrupt();
3046 if (in_isr) {
3047 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Internal SCSI IO request not allowed in ISR context!\n",
3048 ioc->name));
3049 return -EPERM;
3050 }
3051
3052
3053 /* Set command specific information
3054 */
3055 switch (cmd) {
3056 case INQUIRY:
3057 cmdLen = 6;
3058 dir = MPI_SCSIIO_CONTROL_READ;
3059 CDB[0] = cmd;
3060 CDB[4] = io->size;
3061 cmdTimeout = 10;
3062 break;
3063
3064 case TEST_UNIT_READY:
3065 cmdLen = 6;
3066 dir = MPI_SCSIIO_CONTROL_READ;
3067 cmdTimeout = 10;
3068 break;
3069
3070 case START_STOP:
3071 cmdLen = 6;
3072 dir = MPI_SCSIIO_CONTROL_READ;
3073 CDB[0] = cmd;
3074 CDB[4] = 1; /*Spin up the disk */
3075 cmdTimeout = 15;
3076 break;
3077
3078 case REQUEST_SENSE:
3079 cmdLen = 6;
3080 CDB[0] = cmd;
3081 CDB[4] = io->size;
3082 dir = MPI_SCSIIO_CONTROL_READ;
3083 cmdTimeout = 10;
3084 break;
3085
3086 case READ_BUFFER:
3087 cmdLen = 10;
3088 dir = MPI_SCSIIO_CONTROL_READ;
3089 CDB[0] = cmd;
3090 if (io->flags & MPT_ICFLAG_ECHO) {
3091 CDB[1] = 0x0A;
3092 } else {
3093 CDB[1] = 0x02;
3094 }
3095
3096 if (io->flags & MPT_ICFLAG_BUF_CAP) {
3097 CDB[1] |= 0x01;
3098 }
3099 CDB[6] = (io->size >> 16) & 0xFF;
3100 CDB[7] = (io->size >> 8) & 0xFF;
3101 CDB[8] = io->size & 0xFF;
3102 cmdTimeout = 10;
3103 break;
3104
3105 case WRITE_BUFFER:
3106 cmdLen = 10;
3107 dir = MPI_SCSIIO_CONTROL_WRITE;
3108 CDB[0] = cmd;
3109 if (io->flags & MPT_ICFLAG_ECHO) {
3110 CDB[1] = 0x0A;
3111 } else {
3112 CDB[1] = 0x02;
3113 }
3114 CDB[6] = (io->size >> 16) & 0xFF;
3115 CDB[7] = (io->size >> 8) & 0xFF;
3116 CDB[8] = io->size & 0xFF;
3117 cmdTimeout = 10;
3118 break;
3119
3120 case RESERVE:
3121 cmdLen = 6;
3122 dir = MPI_SCSIIO_CONTROL_READ;
3123 CDB[0] = cmd;
3124 cmdTimeout = 10;
3125 break;
3126
3127 case RELEASE:
3128 cmdLen = 6;
3129 dir = MPI_SCSIIO_CONTROL_READ;
3130 CDB[0] = cmd;
3131 cmdTimeout = 10;
3132 break;
3133
3134 case SYNCHRONIZE_CACHE:
3135 cmdLen = 10;
3136 dir = MPI_SCSIIO_CONTROL_READ;
3137 CDB[0] = cmd;
3138 // CDB[1] = 0x02; /* set immediate bit */
3139 cmdTimeout = 10;
3140 break;
3141
3142 default:
3143 /* Error Case */
3144 return -EFAULT;
3145 }
3146
3147 /* Get and Populate a free Frame
3148 */
3149 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
3150 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "No msg frames!\n",
3151 ioc->name));
3152 return -EBUSY;
3153 }
3154
3155 pScsiReq = (SCSIIORequest_t *) mf;
3156
3157 /* Get the request index */
3158 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
3159 ADD_INDEX_LOG(my_idx); /* for debug */
3160
3161 if (io->flags & MPT_ICFLAG_PHYS_DISK) {
3162 pScsiReq->TargetID = io->physDiskNum;
3163 pScsiReq->Bus = 0;
3164 pScsiReq->ChainOffset = 0;
3165 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3166 } else {
3167 pScsiReq->TargetID = io->id;
3168 pScsiReq->Bus = io->channel;
3169 pScsiReq->ChainOffset = 0;
3170 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
3171 }
3172
3173 pScsiReq->CDBLength = cmdLen;
3174 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
3175
3176 pScsiReq->Reserved = 0;
3177
3178 pScsiReq->MsgFlags = mpt_msg_flags();
3179 /* MsgContext set in mpt_get_msg_fram call */
3180
3181 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
3182
3183 if (io->flags & MPT_ICFLAG_TAGGED_CMD)
3184 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
3185 else
3186 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3187
3188 if (cmd == REQUEST_SENSE) {
3189 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3190 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Untagged! 0x%2x\n",
3191 ioc->name, cmd));
3192 }
3193
3194 for (ii=0; ii < 16; ii++)
3195 pScsiReq->CDB[ii] = CDB[ii];
3196
3197 pScsiReq->DataLength = cpu_to_le32(io->size);
3198 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
3199 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
3200
3201 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Sending Command 0x%x for (%d:%d:%d)\n",
3202 ioc->name, cmd, io->channel, io->id, io->lun));
3203
3204 if (dir == MPI_SCSIIO_CONTROL_READ) {
3205 mpt_add_sge((char *) &pScsiReq->SGL,
3206 MPT_SGE_FLAGS_SSIMPLE_READ | io->size,
3207 io->data_dma);
3208 } else {
3209 mpt_add_sge((char *) &pScsiReq->SGL,
3210 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size,
3211 io->data_dma);
3212 }
3213
3214 /* The ISR will free the request frame, but we need
3215 * the information to initialize the target. Duplicate.
3216 */
3217 memcpy(&ReqCopy, pScsiReq, sizeof(SCSIIORequest_t));
3218
3219 /* Issue this command after:
3220 * finish init
3221 * add timer
3222 * Wait until the reply has been received
3223 * ScsiScanDvCtx callback function will
3224 * set hd->pLocal;
3225 * set scandv_wait_done and call wake_up
3226 */
3227 hd->pLocal = NULL;
3228 hd->timer.expires = jiffies + HZ*cmdTimeout;
3229 hd->scandv_wait_done = 0;
3230
3231 /* Save cmd pointer, for resource free if timeout or
3232 * FW reload occurs
3233 */
3234 hd->cmdPtr = mf;
3235
3236 add_timer(&hd->timer);
3237 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
3238 wait_event(hd->scandv_waitq, hd->scandv_wait_done);
3239
3240 if (hd->pLocal) {
3241 rc = hd->pLocal->completion;
3242 hd->pLocal->skip = 0;
3243
3244 /* Always set fatal error codes in some cases.
3245 */
3246 if (rc == MPT_SCANDV_SELECTION_TIMEOUT)
3247 rc = -ENXIO;
3248 else if (rc == MPT_SCANDV_SOME_ERROR)
3249 rc = -rc;
3250 } else {
3251 rc = -EFAULT;
3252 /* This should never happen. */
3253 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "_do_cmd: Null pLocal!!!\n",
3254 ioc->name));
3255 }
3256
3257 return rc;
3258 }
3259
3260 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3261 /**
3262 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3263 * @hd: Pointer to a SCSI HOST structure
3264 * @vdevice: virtual target device
3265 *
3266 * Uses the ISR, but with special processing.
3267 * MUST be single-threaded.
3268 *
3269 */
3270 static void
3271 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3272 {
3273 INTERNAL_CMD iocmd;
3274
3275 /* Ignore hidden raid components, this is handled when the command
3276 * is sent to the volume
3277 */
3278 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3279 return;
3280
3281 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3282 !vdevice->configured_lun)
3283 return;
3284
3285 /* Following parameters will not change
3286 * in this routine.
3287 */
3288 iocmd.cmd = SYNCHRONIZE_CACHE;
3289 iocmd.flags = 0;
3290 iocmd.physDiskNum = -1;
3291 iocmd.data = NULL;
3292 iocmd.data_dma = -1;
3293 iocmd.size = 0;
3294 iocmd.rsvd = iocmd.rsvd2 = 0;
3295 iocmd.channel = vdevice->vtarget->channel;
3296 iocmd.id = vdevice->vtarget->id;
3297 iocmd.lun = vdevice->lun;
3298
3299 mptscsih_do_cmd(hd, &iocmd);
3300 }
3301
3302 static ssize_t
3303 mptscsih_version_fw_show(struct class_device *cdev, char *buf)
3304 {
3305 struct Scsi_Host *host = class_to_shost(cdev);
3306 MPT_SCSI_HOST *hd = shost_priv(host);
3307 MPT_ADAPTER *ioc = hd->ioc;
3308
3309 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3310 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3311 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3312 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3313 ioc->facts.FWVersion.Word & 0x000000FF);
3314 }
3315 static CLASS_DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3316
3317 static ssize_t
3318 mptscsih_version_bios_show(struct class_device *cdev, char *buf)
3319 {
3320 struct Scsi_Host *host = class_to_shost(cdev);
3321 MPT_SCSI_HOST *hd = shost_priv(host);
3322 MPT_ADAPTER *ioc = hd->ioc;
3323
3324 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3325 (ioc->biosVersion & 0xFF000000) >> 24,
3326 (ioc->biosVersion & 0x00FF0000) >> 16,
3327 (ioc->biosVersion & 0x0000FF00) >> 8,
3328 ioc->biosVersion & 0x000000FF);
3329 }
3330 static CLASS_DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3331
3332 static ssize_t
3333 mptscsih_version_mpi_show(struct class_device *cdev, char *buf)
3334 {
3335 struct Scsi_Host *host = class_to_shost(cdev);
3336 MPT_SCSI_HOST *hd = shost_priv(host);
3337 MPT_ADAPTER *ioc = hd->ioc;
3338
3339 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3340 }
3341 static CLASS_DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3342
3343 static ssize_t
3344 mptscsih_version_product_show(struct class_device *cdev, char *buf)
3345 {
3346 struct Scsi_Host *host = class_to_shost(cdev);
3347 MPT_SCSI_HOST *hd = shost_priv(host);
3348 MPT_ADAPTER *ioc = hd->ioc;
3349
3350 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3351 }
3352 static CLASS_DEVICE_ATTR(version_product, S_IRUGO,
3353 mptscsih_version_product_show, NULL);
3354
3355 static ssize_t
3356 mptscsih_version_nvdata_persistent_show(struct class_device *cdev, char *buf)
3357 {
3358 struct Scsi_Host *host = class_to_shost(cdev);
3359 MPT_SCSI_HOST *hd = shost_priv(host);
3360 MPT_ADAPTER *ioc = hd->ioc;
3361
3362 return snprintf(buf, PAGE_SIZE, "%02xh\n",
3363 ioc->nvdata_version_persistent);
3364 }
3365 static CLASS_DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3366 mptscsih_version_nvdata_persistent_show, NULL);
3367
3368 static ssize_t
3369 mptscsih_version_nvdata_default_show(struct class_device *cdev, char *buf)
3370 {
3371 struct Scsi_Host *host = class_to_shost(cdev);
3372 MPT_SCSI_HOST *hd = shost_priv(host);
3373 MPT_ADAPTER *ioc = hd->ioc;
3374
3375 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3376 }
3377 static CLASS_DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3378 mptscsih_version_nvdata_default_show, NULL);
3379
3380 static ssize_t
3381 mptscsih_board_name_show(struct class_device *cdev, char *buf)
3382 {
3383 struct Scsi_Host *host = class_to_shost(cdev);
3384 MPT_SCSI_HOST *hd = shost_priv(host);
3385 MPT_ADAPTER *ioc = hd->ioc;
3386
3387 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3388 }
3389 static CLASS_DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3390
3391 static ssize_t
3392 mptscsih_board_assembly_show(struct class_device *cdev, char *buf)
3393 {
3394 struct Scsi_Host *host = class_to_shost(cdev);
3395 MPT_SCSI_HOST *hd = shost_priv(host);
3396 MPT_ADAPTER *ioc = hd->ioc;
3397
3398 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3399 }
3400 static CLASS_DEVICE_ATTR(board_assembly, S_IRUGO,
3401 mptscsih_board_assembly_show, NULL);
3402
3403 static ssize_t
3404 mptscsih_board_tracer_show(struct class_device *cdev, char *buf)
3405 {
3406 struct Scsi_Host *host = class_to_shost(cdev);
3407 MPT_SCSI_HOST *hd = shost_priv(host);
3408 MPT_ADAPTER *ioc = hd->ioc;
3409
3410 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3411 }
3412 static CLASS_DEVICE_ATTR(board_tracer, S_IRUGO,
3413 mptscsih_board_tracer_show, NULL);
3414
3415 static ssize_t
3416 mptscsih_io_delay_show(struct class_device *cdev, char *buf)
3417 {
3418 struct Scsi_Host *host = class_to_shost(cdev);
3419 MPT_SCSI_HOST *hd = shost_priv(host);
3420 MPT_ADAPTER *ioc = hd->ioc;
3421
3422 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3423 }
3424 static CLASS_DEVICE_ATTR(io_delay, S_IRUGO,
3425 mptscsih_io_delay_show, NULL);
3426
3427 static ssize_t
3428 mptscsih_device_delay_show(struct class_device *cdev, char *buf)
3429 {
3430 struct Scsi_Host *host = class_to_shost(cdev);
3431 MPT_SCSI_HOST *hd = shost_priv(host);
3432 MPT_ADAPTER *ioc = hd->ioc;
3433
3434 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3435 }
3436 static CLASS_DEVICE_ATTR(device_delay, S_IRUGO,
3437 mptscsih_device_delay_show, NULL);
3438
3439 static ssize_t
3440 mptscsih_debug_level_show(struct class_device *cdev, char *buf)
3441 {
3442 struct Scsi_Host *host = class_to_shost(cdev);
3443 MPT_SCSI_HOST *hd = shost_priv(host);
3444 MPT_ADAPTER *ioc = hd->ioc;
3445
3446 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3447 }
3448 static ssize_t
3449 mptscsih_debug_level_store(struct class_device *cdev, const char *buf,
3450 size_t count)
3451 {
3452 struct Scsi_Host *host = class_to_shost(cdev);
3453 MPT_SCSI_HOST *hd = shost_priv(host);
3454 MPT_ADAPTER *ioc = hd->ioc;
3455 int val = 0;
3456
3457 if (sscanf(buf, "%x", &val) != 1)
3458 return -EINVAL;
3459
3460 ioc->debug_level = val;
3461 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3462 ioc->name, ioc->debug_level);
3463 return strlen(buf);
3464 }
3465 static CLASS_DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3466 mptscsih_debug_level_show, mptscsih_debug_level_store);
3467
3468 struct class_device_attribute *mptscsih_host_attrs[] = {
3469 &class_device_attr_version_fw,
3470 &class_device_attr_version_bios,
3471 &class_device_attr_version_mpi,
3472 &class_device_attr_version_product,
3473 &class_device_attr_version_nvdata_persistent,
3474 &class_device_attr_version_nvdata_default,
3475 &class_device_attr_board_name,
3476 &class_device_attr_board_assembly,
3477 &class_device_attr_board_tracer,
3478 &class_device_attr_io_delay,
3479 &class_device_attr_device_delay,
3480 &class_device_attr_debug_level,
3481 NULL,
3482 };
3483 EXPORT_SYMBOL(mptscsih_host_attrs);
3484
3485 EXPORT_SYMBOL(mptscsih_remove);
3486 EXPORT_SYMBOL(mptscsih_shutdown);
3487 #ifdef CONFIG_PM
3488 EXPORT_SYMBOL(mptscsih_suspend);
3489 EXPORT_SYMBOL(mptscsih_resume);
3490 #endif
3491 EXPORT_SYMBOL(mptscsih_proc_info);
3492 EXPORT_SYMBOL(mptscsih_info);
3493 EXPORT_SYMBOL(mptscsih_qcmd);
3494 EXPORT_SYMBOL(mptscsih_slave_destroy);
3495 EXPORT_SYMBOL(mptscsih_slave_configure);
3496 EXPORT_SYMBOL(mptscsih_abort);
3497 EXPORT_SYMBOL(mptscsih_dev_reset);
3498 EXPORT_SYMBOL(mptscsih_bus_reset);
3499 EXPORT_SYMBOL(mptscsih_host_reset);
3500 EXPORT_SYMBOL(mptscsih_bios_param);
3501 EXPORT_SYMBOL(mptscsih_io_done);
3502 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3503 EXPORT_SYMBOL(mptscsih_scandv_complete);
3504 EXPORT_SYMBOL(mptscsih_event_process);
3505 EXPORT_SYMBOL(mptscsih_ioc_reset);
3506 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3507 EXPORT_SYMBOL(mptscsih_timer_expired);
3508 EXPORT_SYMBOL(mptscsih_TMHandler);
3509
3510 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
Linux with added FPC-III support