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Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
[linux-2.6-block.git] / drivers / message / fusion / mptscsih.c
CommitLineData
1da177e4
LT		 1/*
2 * linux/drivers/message/fusion/mptscsih.c
f36789e2
PS		 3 * For use with LSI PCI chip/adapter(s)
4 * running LSI Fusion MPT (Message Passing Technology) firmware.
1da177e4 5 *
f36789e2 6 * Copyright (c) 1999-2007 LSI Corporation
16d20101 7 * (mailto:DL-MPTFusionLinux@lsi.com)
1da177e4 8 *
1da177e4
LT		 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
1da177e4
LT		 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 */
1da177e4
LT		 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>
e0fc15be 63#include <scsi/scsi_dbg.h>
1da177e4
LT		 64
65#include "mptbase.h"
66#include "mptscsih.h"
bf451522 67#include "lsi/mpi_log_sas.h"
1da177e4
LT		 68
69/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
70#define my_NAME "Fusion MPT SCSI Host driver"
71#define my_VERSION MPT_LINUX_VERSION_COMMON
72#define MYNAM "mptscsih"
73
74MODULE_AUTHOR(MODULEAUTHOR);
75MODULE_DESCRIPTION(my_NAME);
76MODULE_LICENSE("GPL");
9f4203b3 77MODULE_VERSION(my_VERSION);
1da177e4 78
1da177e4 79/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1da177e4
LT		 80/*
81 * Other private/forward protos...
82 */
e8206381
EM		 83static struct scsi_cmnd * mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
84static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i);
85static void mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd);
86static int SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd);
0d0c7974 87int mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
1da177e4 88static void mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
0d0c7974 89int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
1da177e4
LT		 90
91static int mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
92 SCSIIORequest_t *pReq, int req_idx);
93static void mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
0d0c7974 94static void mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
1da177e4
LT		 95static int mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd);
96static int mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout );
1da177e4 97
793955f5 98static int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout);
1da177e4 99
0d0c7974
MED		 100int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
101int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
1da177e4 102
0d0c7974 103int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
1da177e4 104static int mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
c7c82987 105static void mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
1da177e4 106
0d0c7974 107void mptscsih_remove(struct pci_dev *);
d18c3db5 108void mptscsih_shutdown(struct pci_dev *);
1da177e4 109#ifdef CONFIG_PM
0d0c7974
MED		 110int mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
111int mptscsih_resume(struct pci_dev *pdev);
1da177e4
LT		 112#endif
113
1da177e4
LT		 114#define SNS_LEN(scp) sizeof((scp)->sense_buffer)
115
1da177e4
LT		 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 */
126static inline void
127mptscsih_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 */
156static inline void
157mptscsih_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 */
189static inline int
190mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
191{
192 MPT_FRAME_HDR *chainBuf;
193 unsigned long flags;
194 int rc;
195 int chain_idx;
196
6757d6b4 197 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n",
29dd3609 198 ioc->name));
1da177e4
LT		 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;
29dd3609
EM		 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));
1da177e4
LT		 212 } else {
213 rc = FAILED;
214 chain_idx = MPT_HOST_NO_CHAIN;
29dd3609
EM		 215 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n",
216 ioc->name));
1da177e4
LT		 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 */
234static int
235mptscsih_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 */
1928d73f
FT		 266 sges_left = scsi_dma_map(SCpnt);
267 if (sges_left < 0)
268 return FAILED;
1da177e4
LT		 269
270 /* Handle the SG case.
271 */
1928d73f 272 sg = scsi_sglist(SCpnt);
1da177e4
LT		 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
283nextSGEset:
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 ++; /* 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++; /* 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++;
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;
6757d6b4 344 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1da177e4
LT		 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
6757d6b4 360 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n",
1da177e4
LT		 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;
6757d6b4 393 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
1da177e4
LT		 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 */
c6678e0c 403 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
6757d6b4 404 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
c6678e0c
CH		 405 "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
406 ioc->name, pReq->CDB[0], SCpnt));
1da177e4 407 return FAILED;
c6678e0c 408 }
1da177e4
LT		 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;
29dd3609
EM		 426 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Current buff @ %p (index 0x%x)",
427 ioc->name, psge, req_idx));
1da177e4
LT		 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
29dd3609
EM		 435 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Chain buff @ %p (index 0x%x)\n",
436 ioc->name, psge, chain_idx));
1da177e4
LT		 437
438 /* Start the SGE for the next buffer
439 */
440
441 goto nextSGEset;
442 }
443
444 return SUCCESS;
445} /* mptscsih_AddSGE() */
446
786899b0
EM		 447static void
448mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
449 U32 SlotStatus)
450{
451 MPT_FRAME_HDR *mf;
452 SEPRequest_t *SEPMsg;
453
cc78d30a
EM		 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)
786899b0
EM		 460 return;
461
462 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
6757d6b4 463 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
786899b0
EM		 464 ioc->name,__FUNCTION__));
465 return;
466 }
467
468 SEPMsg = (SEPRequest_t *)mf;
469 SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
793955f5
EM		 470 SEPMsg->Bus = vtarget->channel;
471 SEPMsg->TargetID = vtarget->id;
786899b0
EM		 472 SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
473 SEPMsg->SlotStatus = SlotStatus;
6757d6b4 474 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
793955f5
EM		 475 "Sending SEP cmd=%x channel=%d id=%d\n",
476 ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
786899b0
EM		 477 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
478}
479
6757d6b4 480#ifdef CONFIG_FUSION_LOGGING
c6c727a1 481/**
6757d6b4 482 * mptscsih_info_scsiio - debug print info on reply frame
c6c727a1 483 * @ioc: Pointer to MPT_ADAPTER structure
c6c727a1 484 * @sc: original scsi cmnd pointer
6757d6b4
PS		 485 * @pScsiReply: Pointer to MPT reply frame
486 *
487 * MPT_DEBUG_REPLY needs to be enabled to obtain this info
c6c727a1
EM		 488 *
489 * Refer to lsi/mpi.h.
490 **/
491static void
6757d6b4 492mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
c6c727a1 493{
6757d6b4
PS		 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;
c6c727a1
EM		 500
501 switch (ioc_status) {
502
6757d6b4
PS		 503 case MPI_IOCSTATUS_SUCCESS:
504 desc = "success";
c6c727a1 505 break;
6757d6b4
PS		 506 case MPI_IOCSTATUS_SCSI_INVALID_BUS:
507 desc = "invalid bus";
c6c727a1 508 break;
6757d6b4
PS		 509 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
510 desc = "invalid target_id";
c6c727a1 511 break;
6757d6b4
PS		 512 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
513 desc = "device not there";
c6c727a1 514 break;
6757d6b4
PS		 515 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
516 desc = "data overrun";
c6c727a1 517 break;
6757d6b4
PS		 518 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
519 desc = "data underrun";
c6c727a1 520 break;
6757d6b4
PS		 521 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
522 desc = "I/O data error";
c6c727a1 523 break;
6757d6b4
PS		 524 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
525 desc = "protocol error";
c6c727a1 526 break;
6757d6b4
PS		 527 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
528 desc = "task terminated";
c6c727a1 529 break;
6757d6b4
PS		 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";
c6c727a1 541 break;
6757d6b4
PS		 542 default:
543 desc = "";
544 break;
545 }
546
547 switch (pScsiReply->SCSIStatus)
548 {
c6c727a1 549
6757d6b4
PS		 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 = "";
c6c727a1
EM		 591 break;
592 }
593
6757d6b4 594 scsi_print_command(sc);
29dd3609
EM		 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),
6757d6b4 602 le32_to_cpu(pScsiReply->TransferCount), sc->result);
29dd3609 603 printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), "
6757d6b4 604 "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
29dd3609 605 ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus,
6757d6b4 606 pScsiReply->SCSIState);
c6c727a1 607
6757d6b4
PS		 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
29dd3609
EM		 613 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: "
614 "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq);
6757d6b4
PS		 615 }
616
617 /*
618 * Look for + dump FCP ResponseInfo[]!
619 */
620 if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
621 pScsiReply->ResponseInfo)
29dd3609
EM		 622 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n",
623 ioc->name, le32_to_cpu(pScsiReply->ResponseInfo));
c6c727a1
EM		 624}
625#endif
626
1da177e4
LT		 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 */
0d0c7974 642int
1da177e4
LT		 643mptscsih_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;
2254c86d 649 u16 req_idx, req_idx_MR;
a69de507 650 VirtDevice *vdevice;
786899b0 651 VirtTarget *vtarget;
1da177e4 652
e7eae9f6 653 hd = shost_priv(ioc->sh);
1da177e4 654 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2254c86d
ME		 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,
e8206381 664 mptscsih_get_scsi_lookup(ioc, req_idx_MR));
2254c86d
ME		 665 return 0;
666 }
667
e8206381 668 sc = mptscsih_getclear_scsi_lookup(ioc, req_idx);
1da177e4
LT		 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
3dc0b03f
EM		 684 if ((unsigned char *)mf != sc->host_scribble) {
685 mptscsih_freeChainBuffers(ioc, req_idx);
686 return 1;
687 }
688
689 sc->host_scribble = NULL;
1da177e4
LT		 690 sc->result = DID_OK << 16; /* Set default reply as OK */
691 pScsiReq = (SCSIIORequest_t *) mf;
692 pScsiReply = (SCSIIOReply_t *) mr;
693
c6678e0c 694 if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
6757d6b4 695 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
c6678e0c
CH		 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{
6757d6b4 699 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
c6678e0c
CH		 700 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
701 ioc->name, mf, mr, sc, req_idx));
702 }
703
1da177e4
LT		 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;
c6c727a1 711 u32 log_info;
1da177e4
LT		 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);
1928d73f 717 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
c6c727a1 718 log_info = le32_to_cpu(pScsiReply->IOCLogInfo);
1da177e4 719
466544d8
MED		 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
1da177e4 733 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
0d0c7974
MED		 734 mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);
735
1da177e4
LT		 736 /*
737 * Look for + dump FCP ResponseInfo[]!
738 */
466544d8
MED		 739 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
740 pScsiReply->ResponseInfo) {
29dd3609
EM		 741 printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%d] "
742 "FCP_ResponseInfo=%08xh\n", ioc->name,
c6c727a1
EM		 743 sc->device->host->host_no, sc->device->channel,
744 sc->device->id, sc->device->lun,
1da177e4
LT		 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! */
65207fed
ME		 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;
1da177e4
LT		 770
771 if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
772 hd->sel_timeout[pScsiReq->TargetID]++;
786899b0 773
a69de507
EM		 774 vdevice = sc->device->hostdata;
775 if (!vdevice)
786899b0 776 break;
a69de507 777 vtarget = vdevice->vtarget;
786899b0
EM		 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 }
1da177e4
LT		 783 break;
784
1da177e4 785 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
bf451522
EM		 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) {
c6c727a1
EM		 789 if ((log_info & SAS_LOGINFO_MASK)
790 == SAS_LOGINFO_NEXUS_LOSS) {
bf451522
EM		 791 sc->result = (DID_BUS_BUSY << 16);
792 break;
793 }
794 }
86dd4242
EM		 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;
bf451522
EM		 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 */
1da177e4
LT		 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
1da177e4
LT		 819 break;
820
821 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: /* 0x0049 */
1928d73f 822 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
466544d8
MED		 823 if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
824 sc->result=DID_SOFT_ERROR << 16;
825 else /* Sufficient data transfer occurred */
1da177e4 826 sc->result = (DID_OK << 16) | scsi_status;
29dd3609 827 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
c6c727a1 828 "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
29dd3609 829 ioc->name, sc->result, sc->device->channel, sc->device->id));
1da177e4 830 break;
0d0c7974 831
1da177e4
LT		 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) {
466544d8
MED		 844 if (scsi_status == SAM_STAT_BUSY)
845 sc->result = SAM_STAT_BUSY;
846 else
847 sc->result = DID_SOFT_ERROR << 16;
1da177e4
LT		 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
6757d6b4 860
29dd3609
EM		 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));
6757d6b4 866
1da177e4
LT		 867 /* Report Queue Full
868 */
869 if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
870 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
0d0c7974 871
1da177e4
LT		 872 break;
873
7e55147f 874 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: /* 0x0044 */
1928d73f 875 scsi_set_resid(sc, 0);
1da177e4
LT		 876 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
877 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
ad8c31bb 878 sc->result = (DID_OK << 16) | scsi_status;
1da177e4
LT		 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 */
1da177e4
LT		 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
6757d6b4
PS		 943#ifdef CONFIG_FUSION_LOGGING
944 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
945 mptscsih_info_scsiio(ioc, sc, pScsiReply);
c6c727a1
EM		 946#endif
947
1da177e4
LT		 948 } /* end of address reply case */
949
950 /* Unmap the DMA buffers, if any. */
1928d73f 951 scsi_dma_unmap(sc);
1da177e4 952
1da177e4
LT		 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
1da177e4
LT		 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 */
970static void
971mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
972{
973 MPT_ADAPTER *ioc = hd->ioc;
e8206381
EM		 974 struct scsi_cmnd *sc;
975 SCSIIORequest_t *mf = NULL;
1da177e4 976 int ii;
e8206381 977 int channel, id;
1da177e4 978
e8206381
EM		 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;
c51d0bea 995 sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
e8206381
EM		 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);
1da177e4 999 }
1da177e4
LT		 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.
05e8ec17 1008 * (BUT, BUT, BUT, the code does reference it! - mdr)
c7c82987
MED		 1009 * @hd: Pointer to a SCSI HOST structure
1010 * @vdevice: per device private data
1da177e4
LT		 1011 *
1012 * Returns: None.
1013 *
1014 * Called from slave_destroy.
1015 */
1016static void
c7c82987 1017mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
1da177e4
LT		 1018{
1019 SCSIIORequest_t *mf = NULL;
1020 int ii;
466544d8 1021 struct scsi_cmnd *sc;
793955f5 1022 struct scsi_lun lun;
e80b002b 1023 MPT_ADAPTER *ioc = hd->ioc;
e8206381 1024 unsigned long flags;
1da177e4 1025
e8206381
EM		 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) {
1da177e4 1029
e80b002b 1030 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
3dc0b03f
EM		 1031 if (mf == NULL)
1032 continue;
cc78d30a
EM		 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
793955f5
EM		 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))
1da177e4
LT		 1045 continue;
1046
3dc0b03f
EM		 1047 if ((unsigned char *)mf != sc->host_scribble)
1048 continue;
e8206381
EM		 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);
1928d73f 1053 scsi_dma_unmap(sc);
466544d8
MED		 1054 sc->host_scribble = NULL;
1055 sc->result = DID_NO_CONNECT << 16;
c51d0bea 1056 sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT "completing cmds: fw_channel %d,"
e80b002b 1057 "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name, vdevice->vtarget->channel,
6757d6b4 1058 vdevice->vtarget->id, sc, mf, ii);
466544d8 1059 sc->scsi_done(sc);
e8206381 1060 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1da177e4
LT		 1061 }
1062 }
e8206381 1063 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1da177e4
LT		 1064 return;
1065}
1066
1067/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1da177e4
LT		 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 */
1081static void
1082mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1083{
1084 long time = jiffies;
1da177e4 1085 MPT_SCSI_HOST *hd;
e80b002b 1086 MPT_ADAPTER *ioc;
1da177e4 1087
0d0c7974
MED		 1088 if (sc->device == NULL)
1089 return;
1090 if (sc->device->host == NULL)
1091 return;
e7eae9f6 1092 if ((hd = shost_priv(sc->device->host)) == NULL)
0d0c7974 1093 return;
e80b002b 1094 ioc = hd->ioc;
0d0c7974 1095 if (time - hd->last_queue_full > 10 * HZ) {
e80b002b
EM		 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));
0d0c7974 1098 hd->last_queue_full = time;
1da177e4 1099 }
1da177e4
LT		 1100}
1101
1102/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1103/*
1104 * mptscsih_remove - Removed scsi devices
1105 * @pdev: Pointer to pci_dev structure
1106 *
1107 *
1108 */
0d0c7974 1109void
1da177e4
LT		 1110mptscsih_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;
0d0c7974 1115 int sz1;
1da177e4 1116
466544d8
MED		 1117 if(!host) {
1118 mpt_detach(pdev);
1da177e4 1119 return;
466544d8 1120 }
1da177e4
LT		 1121
1122 scsi_remove_host(host);
1123
e7eae9f6 1124 if((hd = shost_priv(host)) == NULL)
0d0c7974
MED		 1125 return;
1126
d18c3db5 1127 mptscsih_shutdown(pdev);
1da177e4 1128
0d0c7974 1129 sz1=0;
1da177e4 1130
e8206381 1131 if (ioc->ScsiLookup != NULL) {
e80b002b 1132 sz1 = ioc->req_depth * sizeof(void *);
e8206381
EM		 1133 kfree(ioc->ScsiLookup);
1134 ioc->ScsiLookup = NULL;
0d0c7974 1135 }
1da177e4 1136
e80b002b 1137 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
0d0c7974 1138 "Free'd ScsiLookup (%d) memory\n",
e80b002b 1139 ioc->name, sz1));
1da177e4 1140
d485eb83 1141 kfree(hd->info_kbuf);
1da177e4 1142
0d0c7974
MED		 1143 /* NULL the Scsi_Host pointer
1144 */
e80b002b 1145 ioc->sh = NULL;
1da177e4
LT		 1146
1147 scsi_host_put(host);
1da177e4 1148
0d0c7974 1149 mpt_detach(pdev);
c6678e0c 1150
1da177e4
LT		 1151}
1152
1153/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1154/*
1155 * mptscsih_shutdown - reboot notifier
1156 *
1157 */
0d0c7974 1158void
d18c3db5 1159mptscsih_shutdown(struct pci_dev *pdev)
1da177e4 1160{
1da177e4
LT		 1161}
1162
1163#ifdef CONFIG_PM
1164/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1165/*
0d0c7974 1166 * mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1da177e4
LT		 1167 *
1168 *
1169 */
0d0c7974 1170int
8d189f72 1171mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1da177e4 1172{
d18c3db5 1173 mptscsih_shutdown(pdev);
0d0c7974 1174 return mpt_suspend(pdev,state);
1da177e4
LT		 1175}
1176
1177/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1178/*
1179 * mptscsih_resume - Fusion MPT scsi driver resume routine.
1180 *
1181 *
1182 */
0d0c7974 1183int
1da177e4
LT		 1184mptscsih_resume(struct pci_dev *pdev)
1185{
b364fd50 1186 return mpt_resume(pdev);
1da177e4
LT		 1187}
1188
1189#endif
1190
1da177e4
LT		 1191/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1192/**
1193 * mptscsih_info - Return information about MPT adapter
1194 * @SChost: Pointer to Scsi_Host structure
1195 *
1196 * (linux scsi_host_template.info routine)
1197 *
1198 * Returns pointer to buffer where information was written.
1199 */
0d0c7974 1200const char *
1da177e4
LT		 1201mptscsih_info(struct Scsi_Host *SChost)
1202{
1203 MPT_SCSI_HOST *h;
1204 int size = 0;
1205
e7eae9f6 1206 h = shost_priv(SChost);
0d0c7974 1207
1da177e4 1208 if (h) {
0d0c7974
MED		 1209 if (h->info_kbuf == NULL)
1210 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1211 return h->info_kbuf;
1212 h->info_kbuf[0] = '\0';
1213
1214 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1215 h->info_kbuf[size-1] = '\0';
1da177e4
LT		 1216 }
1217
0d0c7974 1218 return h->info_kbuf;
1da177e4
LT		 1219}
1220
1221struct info_str {
1222 char *buffer;
1223 int length;
1224 int offset;
1225 int pos;
1226};
1227
0d0c7974
MED		 1228static void
1229mptscsih_copy_mem_info(struct info_str *info, char *data, int len)
1da177e4
LT		 1230{
1231 if (info->pos + len > info->length)
1232 len = info->length - info->pos;
1233
1234 if (info->pos + len < info->offset) {
1235 info->pos += len;
1236 return;
1237 }
1238
1239 if (info->pos < info->offset) {
1240 data += (info->offset - info->pos);
1241 len -= (info->offset - info->pos);
1242 }
1243
1244 if (len > 0) {
1245 memcpy(info->buffer + info->pos, data, len);
1246 info->pos += len;
1247 }
1248}
1249
0d0c7974
MED		 1250static int
1251mptscsih_copy_info(struct info_str *info, char *fmt, ...)
1da177e4
LT		 1252{
1253 va_list args;
1254 char buf[81];
1255 int len;
1256
1257 va_start(args, fmt);
1258 len = vsprintf(buf, fmt, args);
1259 va_end(args);
1260
0d0c7974 1261 mptscsih_copy_mem_info(info, buf, len);
1da177e4
LT		 1262 return len;
1263}
1264
0d0c7974
MED		 1265static int
1266mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len)
1da177e4
LT		 1267{
1268 struct info_str info;
1269
1270 info.buffer = pbuf;
1271 info.length = len;
1272 info.offset = offset;
1273 info.pos = 0;
1274
0d0c7974
MED		 1275 mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name);
1276 mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1277 mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts);
1278 mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth);
1da177e4
LT		 1279
1280 return ((info.pos > info.offset) ? info.pos - info.offset : 0);
1281}
1282
1283/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1284/**
1285 * mptscsih_proc_info - Return information about MPT adapter
d9489fb6
RD		 1286 * @host: scsi host struct
1287 * @buffer: if write, user data; if read, buffer for user
1288 * @start: returns the buffer address
1289 * @offset: if write, 0; if read, the current offset into the buffer from
1290 * the previous read.
1291 * @length: if write, return length;
1292 * @func: write = 1; read = 0
1da177e4
LT		 1293 *
1294 * (linux scsi_host_template.info routine)
1da177e4 1295 */
0d0c7974 1296int
1da177e4
LT		 1297mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
1298 int length, int func)
1299{
e7eae9f6 1300 MPT_SCSI_HOST *hd = shost_priv(host);
1da177e4
LT		 1301 MPT_ADAPTER *ioc = hd->ioc;
1302 int size = 0;
1303
1304 if (func) {
c6678e0c
CH		 1305 /*
1306 * write is not supported
1da177e4
LT		 1307 */
1308 } else {
1309 if (start)
1310 *start = buffer;
1311
1312 size = mptscsih_host_info(ioc, buffer, offset, length);
1313 }
1314
1315 return size;
1316}
1317
1318/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1319#define ADD_INDEX_LOG(req_ent) do { } while(0)
1320
1321/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1322/**
1323 * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1324 * @SCpnt: Pointer to scsi_cmnd structure
1325 * @done: Pointer SCSI mid-layer IO completion function
1326 *
1327 * (linux scsi_host_template.queuecommand routine)
1328 * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest
1329 * from a linux scsi_cmnd request and send it to the IOC.
1330 *
1331 * Returns 0. (rtn value discarded by linux scsi mid-layer)
1332 */
0d0c7974 1333int
1da177e4
LT		 1334mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1335{
1336 MPT_SCSI_HOST *hd;
1337 MPT_FRAME_HDR *mf;
1338 SCSIIORequest_t *pScsiReq;
a69de507 1339 VirtDevice *vdevice = SCpnt->device->hostdata;
1da177e4
LT		 1340 int lun;
1341 u32 datalen;
1342 u32 scsictl;
1343 u32 scsidir;
1344 u32 cmd_len;
1345 int my_idx;
1346 int ii;
6757d6b4 1347 MPT_ADAPTER *ioc;
1da177e4 1348
e7eae9f6 1349 hd = shost_priv(SCpnt->device->host);
6757d6b4 1350 ioc = hd->ioc;
1da177e4
LT		 1351 lun = SCpnt->device->lun;
1352 SCpnt->scsi_done = done;
1353
6757d6b4
PS		 1354 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
1355 ioc->name, SCpnt, done));
1da177e4
LT		 1356
1357 if (hd->resetPending) {
6757d6b4
PS		 1358 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT "qcmd: SCpnt=%p timeout + 60HZ\n",
1359 ioc->name, SCpnt));
1da177e4
LT		 1360 return SCSI_MLQUEUE_HOST_BUSY;
1361 }
1362
1363 /*
1364 * Put together a MPT SCSI request...
1365 */
e80b002b 1366 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
6757d6b4
PS		 1367 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1368 ioc->name));
1da177e4
LT		 1369 return SCSI_MLQUEUE_HOST_BUSY;
1370 }
1371
1372 pScsiReq = (SCSIIORequest_t *) mf;
1373
1374 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1375
1376 ADD_INDEX_LOG(my_idx);
1377
0d0c7974 1378 /* TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1da177e4
LT		 1379 * Seems we may receive a buffer (datalen>0) even when there
1380 * will be no data transfer! GRRRRR...
1381 */
1382 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1928d73f 1383 datalen = scsi_bufflen(SCpnt);
1da177e4
LT		 1384 scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */
1385 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1928d73f 1386 datalen = scsi_bufflen(SCpnt);
1da177e4
LT		 1387 scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */
1388 } else {
1389 datalen = 0;
1390 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1391 }
1392
1393 /* Default to untagged. Once a target structure has been allocated,
1394 * use the Inquiry data to determine if device supports tagged.
1395 */
a69de507
EM		 1396 if (vdevice
1397 && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1da177e4
LT		 1398 && (SCpnt->device->tagged_supported)) {
1399 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1400 } else {
1401 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1402 }
1403
1404 /* Use the above information to set up the message frame
1405 */
a69de507
EM		 1406 pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1407 pScsiReq->Bus = vdevice->vtarget->channel;
1da177e4 1408 pScsiReq->ChainOffset = 0;
a69de507 1409 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
c92f222e
JB		 1410 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1411 else
1412 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1da177e4
LT		 1413 pScsiReq->CDBLength = SCpnt->cmd_len;
1414 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1415 pScsiReq->Reserved = 0;
1416 pScsiReq->MsgFlags = mpt_msg_flags();
793955f5 1417 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1da177e4
LT		 1418 pScsiReq->Control = cpu_to_le32(scsictl);
1419
1420 /*
1421 * Write SCSI CDB into the message
1422 */
1423 cmd_len = SCpnt->cmd_len;
1424 for (ii=0; ii < cmd_len; ii++)
1425 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1426
1427 for (ii=cmd_len; ii < 16; ii++)
1428 pScsiReq->CDB[ii] = 0;
1429
1430 /* DataLength */
1431 pScsiReq->DataLength = cpu_to_le32(datalen);
1432
1433 /* SenseBuffer low address */
e80b002b 1434 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1da177e4
LT		 1435 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1436
1437 /* Now add the SG list
1438 * Always have a SGE even if null length.
1439 */
1440 if (datalen == 0) {
1441 /* Add a NULL SGE */
1442 mptscsih_add_sge((char *)&pScsiReq->SGL, MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1443 (dma_addr_t) -1);
1444 } else {
1445 /* Add a 32 or 64 bit SGE */
e80b002b 1446 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1da177e4
LT		 1447 goto fail;
1448 }
1449
3dc0b03f 1450 SCpnt->host_scribble = (unsigned char *)mf;
e8206381 1451 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1da177e4 1452
e80b002b 1453 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
6757d6b4
PS		 1454 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1455 ioc->name, SCpnt, mf, my_idx));
29dd3609 1456 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1da177e4
LT		 1457 return 0;
1458
1459 fail:
e80b002b
EM		 1460 mptscsih_freeChainBuffers(ioc, my_idx);
1461 mpt_free_msg_frame(ioc, mf);
1da177e4
LT		 1462 return SCSI_MLQUEUE_HOST_BUSY;
1463}
1464
1465/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1466/*
1467 * mptscsih_freeChainBuffers - Function to free chain buffers associated
1468 * with a SCSI IO request
1469 * @hd: Pointer to the MPT_SCSI_HOST instance
1470 * @req_idx: Index of the SCSI IO request frame.
1471 *
1472 * Called if SG chain buffer allocation fails and mptscsih callbacks.
1473 * No return.
1474 */
1475static void
1476mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1477{
1478 MPT_FRAME_HDR *chain;
1479 unsigned long flags;
1480 int chain_idx;
1481 int next;
1482
1483 /* Get the first chain index and reset
1484 * tracker state.
1485 */
1486 chain_idx = ioc->ReqToChain[req_idx];
1487 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1488
1489 while (chain_idx != MPT_HOST_NO_CHAIN) {
1490
1491 /* Save the next chain buffer index */
1492 next = ioc->ChainToChain[chain_idx];
1493
1494 /* Free this chain buffer and reset
1495 * tracker
1496 */
1497 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1498
1499 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1500 + (chain_idx * ioc->req_sz));
1501
1502 spin_lock_irqsave(&ioc->FreeQlock, flags);
1503 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1504 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1505
6757d6b4 1506 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1da177e4
LT		 1507 ioc->name, chain_idx));
1508
1509 /* handle next */
1510 chain_idx = next;
1511 }
1512 return;
1513}
1514
1515/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1516/*
1517 * Reset Handling
1518 */
1519
1520/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
cd2c6191 1521/**
1da177e4 1522 * mptscsih_TMHandler - Generic handler for SCSI Task Management.
1544d677 1523 * @hd: Pointer to MPT SCSI HOST structure
1da177e4 1524 * @type: Task Management type
1544d677 1525 * @channel: channel number for task management
793955f5 1526 * @id: Logical Target ID for reset (if appropriate)
1da177e4
LT		 1527 * @lun: Logical Unit for reset (if appropriate)
1528 * @ctx2abort: Context for the task to be aborted (if appropriate)
1544d677
RD		 1529 * @timeout: timeout for task management control
1530 *
1531 * Fall through to mpt_HardResetHandler if: not operational, too many
1532 * failed TM requests or handshake failure.
1da177e4
LT		 1533 *
1534 * Remark: Currently invoked from a non-interrupt thread (_bh).
1535 *
1536 * Remark: With old EH code, at most 1 SCSI TaskMgmt function per IOC
1537 * will be active.
1538 *
1544d677 1539 * Returns 0 for SUCCESS, or %FAILED.
cd2c6191 1540 **/
663e1aa1 1541int
793955f5 1542mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1da177e4
LT		 1543{
1544 MPT_ADAPTER *ioc;
1545 int rc = -1;
1da177e4
LT		 1546 u32 ioc_raw_state;
1547 unsigned long flags;
1548
1da177e4 1549 ioc = hd->ioc;
6757d6b4 1550 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler Entered!\n", ioc->name));
1da177e4
LT		 1551
1552 // SJR - CHECKME - Can we avoid this here?
1553 // (mpt_HardResetHandler has this check...)
1554 spin_lock_irqsave(&ioc->diagLock, flags);
1555 if ((ioc->diagPending) || (ioc->alt_ioc && ioc->alt_ioc->diagPending)) {
1556 spin_unlock_irqrestore(&ioc->diagLock, flags);
1557 return FAILED;
1558 }
1559 spin_unlock_irqrestore(&ioc->diagLock, flags);
1560
1561 /* Wait a fixed amount of time for the TM pending flag to be cleared.
cd2c6191
EM		 1562 * If we time out and not bus reset, then we return a FAILED status
1563 * to the caller.
1564 * The call to mptscsih_tm_pending_wait() will set the pending flag
1565 * if we are
1da177e4
LT		 1566 * successful. Otherwise, reload the FW.
1567 */
1568 if (mptscsih_tm_pending_wait(hd) == FAILED) {
1569 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
29dd3609 1570 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler abort: "
1da177e4 1571 "Timed out waiting for last TM (%d) to complete! \n",
6757d6b4 1572 ioc->name, hd->tmPending));
1da177e4
LT		 1573 return FAILED;
1574 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET) {
29dd3609 1575 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler target "
cd2c6191 1576 "reset: Timed out waiting for last TM (%d) "
6757d6b4 1577 "to complete! \n", ioc->name,
cd2c6191 1578 hd->tmPending));
1da177e4
LT		 1579 return FAILED;
1580 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) {
29dd3609 1581 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler bus reset: "
1da177e4 1582 "Timed out waiting for last TM (%d) to complete! \n",
6757d6b4 1583 ioc->name, hd->tmPending));
cd2c6191 1584 return FAILED;
1da177e4
LT		 1585 }
1586 } else {
e80b002b 1587 spin_lock_irqsave(&ioc->FreeQlock, flags);
1da177e4 1588 hd->tmPending |= (1 << type);
e80b002b 1589 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1da177e4
LT		 1590 }
1591
e80b002b 1592 ioc_raw_state = mpt_GetIocState(ioc, 0);
1da177e4 1593
1da177e4
LT		 1594 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1595 printk(MYIOC_s_WARN_FMT
cd2c6191
EM		 1596 "TM Handler for type=%x: IOC Not operational (0x%x)!\n",
1597 ioc->name, type, ioc_raw_state);
29dd3609 1598 printk(MYIOC_s_WARN_FMT " Issuing HardReset!!\n", ioc->name);
cd2c6191 1599 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
29dd3609
EM		 1600 printk(MYIOC_s_WARN_FMT "TMHandler: HardReset "
1601 "FAILED!!\n", ioc->name);
cd2c6191 1602 return FAILED;
1da177e4
LT		 1603 }
1604
cd2c6191
EM		 1605 if (ioc_raw_state & MPI_DOORBELL_ACTIVE) {
1606 printk(MYIOC_s_WARN_FMT
1607 "TM Handler for type=%x: ioc_state: "
1608 "DOORBELL_ACTIVE (0x%x)!\n",
1609 ioc->name, type, ioc_raw_state);
1610 return FAILED;
1da177e4
LT		 1611 }
1612
cd2c6191 1613 /* Isse the Task Mgmt request.
3dc0b03f 1614 */
cd2c6191
EM		 1615 if (hd->hard_resets < -1)
1616 hd->hard_resets++;
1617
1618 rc = mptscsih_IssueTaskMgmt(hd, type, channel, id, lun,
1619 ctx2abort, timeout);
1620 if (rc)
1621 printk(MYIOC_s_INFO_FMT "Issue of TaskMgmt failed!\n",
6757d6b4 1622 ioc->name);
cd2c6191 1623 else
6757d6b4
PS		 1624 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issue of TaskMgmt Successful!\n",
1625 ioc->name));
3dc0b03f 1626
6757d6b4
PS		 1627 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1628 "TMHandler rc = %d!\n", ioc->name, rc));
1da177e4
LT		 1629
1630 return rc;
1631}
1632
1633
1634/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
cd2c6191 1635/**
1da177e4
LT		 1636 * mptscsih_IssueTaskMgmt - Generic send Task Management function.
1637 * @hd: Pointer to MPT_SCSI_HOST structure
1638 * @type: Task Management type
1544d677 1639 * @channel: channel number for task management
793955f5 1640 * @id: Logical Target ID for reset (if appropriate)
1da177e4
LT		 1641 * @lun: Logical Unit for reset (if appropriate)
1642 * @ctx2abort: Context for the task to be aborted (if appropriate)
1544d677 1643 * @timeout: timeout for task management control
1da177e4
LT		 1644 *
1645 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1646 * or a non-interrupt thread. In the former, must not call schedule().
1647 *
1648 * Not all fields are meaningfull for all task types.
1649 *
cd2c6191
EM		 1650 * Returns 0 for SUCCESS, or FAILED.
1651 *
1652 **/
1da177e4 1653static int
793955f5 1654mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1da177e4
LT		 1655{
1656 MPT_FRAME_HDR *mf;
1657 SCSITaskMgmt_t *pScsiTm;
1658 int ii;
1659 int retval;
e80b002b 1660 MPT_ADAPTER *ioc = hd->ioc;
1da177e4
LT		 1661
1662 /* Return Fail to calling function if no message frames available.
1663 */
e80b002b
EM		 1664 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1665 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "IssueTaskMgmt, no msg frames!!\n",
1666 ioc->name));
c6678e0c 1667 return FAILED;
1da177e4 1668 }
e80b002b
EM		 1669 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "IssueTaskMgmt request @ %p\n",
1670 ioc->name, mf));
1da177e4
LT		 1671
1672 /* Format the Request
1673 */
1674 pScsiTm = (SCSITaskMgmt_t *) mf;
793955f5 1675 pScsiTm->TargetID = id;
1da177e4
LT		 1676 pScsiTm->Bus = channel;
1677 pScsiTm->ChainOffset = 0;
1678 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1679
1680 pScsiTm->Reserved = 0;
1681 pScsiTm->TaskType = type;
1682 pScsiTm->Reserved1 = 0;
1683 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1684 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1685
793955f5 1686 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1da177e4
LT		 1687
1688 for (ii=0; ii < 7; ii++)
1689 pScsiTm->Reserved2[ii] = 0;
1690
1691 pScsiTm->TaskMsgContext = ctx2abort;
1692
e80b002b
EM		 1693 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "IssueTaskMgmt: ctx2abort (0x%08x) "
1694 "type=%d\n", ioc->name, ctx2abort, type));
1da177e4 1695
6757d6b4 1696 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1da177e4 1697
e80b002b
EM		 1698 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1699 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1700 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
7a195f46 1701 else {
e80b002b 1702 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
7a195f46
PS		 1703 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1704 if (retval) {
e80b002b
EM		 1705 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "send_handshake FAILED!"
1706 " (hd %p, ioc %p, mf %p, rc=%d) \n", ioc->name, hd,
1707 ioc, mf, retval));
7a195f46
PS		 1708 goto fail_out;
1709 }
1da177e4
LT		 1710 }
1711
1712 if(mptscsih_tm_wait_for_completion(hd, timeout) == FAILED) {
e80b002b
EM		 1713 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "task management request TIMED OUT!"
1714 " (hd %p, ioc %p, mf %p) \n", ioc->name, hd,
1715 ioc, mf));
1716 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Calling HardReset! \n",
1717 ioc->name));
1718 retval = mpt_HardResetHandler(ioc, CAN_SLEEP);
1719 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rc=%d \n",
1720 ioc->name, retval));
cd2c6191 1721 goto fail_out;
1da177e4
LT		 1722 }
1723
cd2c6191
EM		 1724 /*
1725 * Handle success case, see if theres a non-zero ioc_status.
1726 */
1727 if (hd->tm_iocstatus == MPI_IOCSTATUS_SUCCESS ||
1728 hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
1729 hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
1730 retval = 0;
1731 else
1732 retval = FAILED;
1733
1da177e4 1734 return retval;
cd2c6191
EM		 1735
1736 fail_out:
1737
1738 /*
1739 * Free task managment mf, and corresponding tm flags
1740 */
e80b002b 1741 mpt_free_msg_frame(ioc, mf);
cd2c6191
EM		 1742 hd->tmPending = 0;
1743 hd->tmState = TM_STATE_NONE;
1744 return FAILED;
1da177e4
LT		 1745}
1746
d66c7a0f
CH		 1747static int
1748mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1749{
1750 switch (ioc->bus_type) {
1751 case FC:
1752 return 40;
1753 case SAS:
1754 return 10;
1755 case SPI:
1756 default:
1757 return 2;
1758 }
1759}
1760
1da177e4
LT		 1761/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1762/**
1763 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1764 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1765 *
1766 * (linux scsi_host_template.eh_abort_handler routine)
1767 *
1768 * Returns SUCCESS or FAILED.
cd2c6191 1769 **/
0d0c7974 1770int
1da177e4
LT		 1771mptscsih_abort(struct scsi_cmnd * SCpnt)
1772{
1773 MPT_SCSI_HOST *hd;
1da177e4
LT		 1774 MPT_FRAME_HDR *mf;
1775 u32 ctx2abort;
1776 int scpnt_idx;
466544d8 1777 int retval;
958d4a32 1778 VirtDevice *vdevice;
3dc0b03f 1779 ulong sn = SCpnt->serial_number;
958d4a32 1780 MPT_ADAPTER *ioc;
1da177e4
LT		 1781
1782 /* If we can't locate our host adapter structure, return FAILED status.
1783 */
e7eae9f6 1784 if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1da177e4
LT		 1785 SCpnt->result = DID_RESET << 16;
1786 SCpnt->scsi_done(SCpnt);
29dd3609
EM		 1787 printk(KERN_ERR MYNAM ": task abort: "
1788 "can't locate host! (sc=%p)\n", SCpnt);
1da177e4
LT		 1789 return FAILED;
1790 }
1791
958d4a32
EM		 1792 ioc = hd->ioc;
1793 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1794 ioc->name, SCpnt);
1795 scsi_print_command(SCpnt);
1796
1797 vdevice = SCpnt->device->hostdata;
1798 if (!vdevice || !vdevice->vtarget) {
29dd3609
EM		 1799 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1800 "task abort: device has been deleted (sc=%p)\n",
1801 ioc->name, SCpnt));
958d4a32
EM		 1802 SCpnt->result = DID_NO_CONNECT << 16;
1803 SCpnt->scsi_done(SCpnt);
1804 retval = 0;
1805 goto out;
1806 }
1807
cc78d30a
EM		 1808 /* Task aborts are not supported for hidden raid components.
1809 */
1810 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
29dd3609
EM		 1811 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1812 "task abort: hidden raid component (sc=%p)\n",
1813 ioc->name, SCpnt));
cc78d30a
EM		 1814 SCpnt->result = DID_RESET << 16;
1815 retval = FAILED;
1816 goto out;
1817 }
1818
1da177e4
LT		 1819 /* Find this command
1820 */
e8206381 1821 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
466544d8 1822 /* Cmd not found in ScsiLookup.
1da177e4
LT		 1823 * Do OS callback.
1824 */
1825 SCpnt->result = DID_RESET << 16;
29dd3609 1826 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
958d4a32
EM		 1827 "Command not in the active list! (sc=%p)\n", ioc->name,
1828 SCpnt));
1829 retval = 0;
1830 goto out;
1da177e4
LT		 1831 }
1832
958d4a32
EM		 1833 if (hd->resetPending) {
1834 retval = FAILED;
1835 goto out;
1836 }
65207fed
ME		 1837
1838 if (hd->timeouts < -1)
1839 hd->timeouts++;
1840
1da177e4
LT		 1841 /* Most important! Set TaskMsgContext to SCpnt's MsgContext!
1842 * (the IO to be ABORT'd)
1843 *
1844 * NOTE: Since we do not byteswap MsgContext, we do not
1845 * swap it here either. It is an opaque cookie to
1846 * the controller, so it does not matter. -DaveM
1847 */
e80b002b 1848 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1da177e4
LT		 1849 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1850
1851 hd->abortSCpnt = SCpnt;
1852
466544d8 1853 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
958d4a32
EM		 1854 vdevice->vtarget->channel, vdevice->vtarget->id, vdevice->lun,
1855 ctx2abort, mptscsih_get_tm_timeout(ioc));
1da177e4 1856
e8206381 1857 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx &&
cd2c6191 1858 SCpnt->serial_number == sn)
3dc0b03f 1859 retval = FAILED;
3dc0b03f 1860
958d4a32
EM		 1861 out:
1862 printk(MYIOC_s_INFO_FMT "task abort: %s (sc=%p)\n",
1863 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1da177e4 1864
466544d8
MED		 1865 if (retval == 0)
1866 return SUCCESS;
cd2c6191
EM		 1867 else
1868 return FAILED;
1da177e4
LT		 1869}
1870
1871/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1872/**
1873 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant
1874 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1875 *
1876 * (linux scsi_host_template.eh_dev_reset_handler routine)
1877 *
1878 * Returns SUCCESS or FAILED.
cd2c6191 1879 **/
0d0c7974 1880int
1da177e4
LT		 1881mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1882{
1883 MPT_SCSI_HOST *hd;
466544d8 1884 int retval;
958d4a32
EM		 1885 VirtDevice *vdevice;
1886 MPT_ADAPTER *ioc;
1da177e4
LT		 1887
1888 /* If we can't locate our host adapter structure, return FAILED status.
1889 */
e7eae9f6 1890 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
29dd3609
EM		 1891 printk(KERN_ERR MYNAM ": target reset: "
1892 "Can't locate host! (sc=%p)\n", SCpnt);
1da177e4
LT		 1893 return FAILED;
1894 }
1895
958d4a32
EM		 1896 ioc = hd->ioc;
1897 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1898 ioc->name, SCpnt);
466544d8 1899 scsi_print_command(SCpnt);
1da177e4 1900
958d4a32
EM		 1901 if (hd->resetPending) {
1902 retval = FAILED;
1903 goto out;
1904 }
1905
1906 vdevice = SCpnt->device->hostdata;
1907 if (!vdevice || !vdevice->vtarget) {
1908 retval = 0;
1909 goto out;
1910 }
1911
cc78d30a
EM		 1912 /* Target reset to hidden raid component is not supported
1913 */
1914 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1915 retval = FAILED;
1916 goto out;
1917 }
1918
466544d8 1919 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
958d4a32
EM		 1920 vdevice->vtarget->channel, vdevice->vtarget->id, 0, 0,
1921 mptscsih_get_tm_timeout(ioc));
466544d8 1922
958d4a32
EM		 1923 out:
1924 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1925 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
466544d8
MED		 1926
1927 if (retval == 0)
1928 return SUCCESS;
cd2c6191
EM		 1929 else
1930 return FAILED;
1da177e4
LT		 1931}
1932
cd2c6191 1933
1da177e4
LT		 1934/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1935/**
1936 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant
1937 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1938 *
1939 * (linux scsi_host_template.eh_bus_reset_handler routine)
1940 *
1941 * Returns SUCCESS or FAILED.
cd2c6191 1942 **/
0d0c7974 1943int
1da177e4
LT		 1944mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1945{
1946 MPT_SCSI_HOST *hd;
466544d8 1947 int retval;
a69de507 1948 VirtDevice *vdevice;
958d4a32 1949 MPT_ADAPTER *ioc;
1da177e4
LT		 1950
1951 /* If we can't locate our host adapter structure, return FAILED status.
1952 */
e7eae9f6 1953 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
29dd3609
EM		 1954 printk(KERN_ERR MYNAM ": bus reset: "
1955 "Can't locate host! (sc=%p)\n", SCpnt);
1da177e4
LT		 1956 return FAILED;
1957 }
1958
958d4a32
EM		 1959 ioc = hd->ioc;
1960 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1961 ioc->name, SCpnt);
466544d8 1962 scsi_print_command(SCpnt);
1da177e4
LT		 1963
1964 if (hd->timeouts < -1)
1965 hd->timeouts++;
1966
a69de507 1967 vdevice = SCpnt->device->hostdata;
466544d8 1968 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
a69de507 1969 vdevice->vtarget->channel, 0, 0, 0, mptscsih_get_tm_timeout(ioc));
1da177e4 1970
958d4a32
EM		 1971 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1972 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
466544d8
MED		 1973
1974 if (retval == 0)
1975 return SUCCESS;
cd2c6191
EM		 1976 else
1977 return FAILED;
1da177e4
LT		 1978}
1979
1980/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1981/**
d9489fb6 1982 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1da177e4
LT		 1983 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1984 *
1985 * (linux scsi_host_template.eh_host_reset_handler routine)
1986 *
1987 * Returns SUCCESS or FAILED.
1988 */
0d0c7974 1989int
1da177e4
LT		 1990mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1991{
1992 MPT_SCSI_HOST * hd;
958d4a32
EM		 1993 int retval;
1994 MPT_ADAPTER *ioc;
1da177e4
LT		 1995
1996 /* If we can't locate the host to reset, then we failed. */
e7eae9f6 1997 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
29dd3609
EM		 1998 printk(KERN_ERR MYNAM ": host reset: "
1999 "Can't locate host! (sc=%p)\n", SCpnt);
1da177e4
LT		 2000 return FAILED;
2001 }
2002
958d4a32
EM		 2003 ioc = hd->ioc;
2004 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
2005 ioc->name, SCpnt);
1da177e4
LT		 2006
2007 /* If our attempts to reset the host failed, then return a failed
2008 * status. The host will be taken off line by the SCSI mid-layer.
2009 */
e80b002b 2010 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0) {
958d4a32 2011 retval = FAILED;
1da177e4
LT		 2012 } else {
2013 /* Make sure TM pending is cleared and TM state is set to
2014 * NONE.
2015 */
958d4a32 2016 retval = 0;
1da177e4
LT		 2017 hd->tmPending = 0;
2018 hd->tmState = TM_STATE_NONE;
2019 }
1da177e4 2020
958d4a32
EM		 2021 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
2022 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1da177e4 2023
958d4a32 2024 return retval;
1da177e4
LT		 2025}
2026
2027/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2028/**
d9489fb6 2029 * mptscsih_tm_pending_wait - wait for pending task management request to complete
1da177e4
LT		 2030 * @hd: Pointer to MPT host structure.
2031 *
2032 * Returns {SUCCESS,FAILED}.
2033 */
2034static int
2035mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd)
2036{
2037 unsigned long flags;
2038 int loop_count = 4 * 10; /* Wait 10 seconds */
2039 int status = FAILED;
e80b002b 2040 MPT_ADAPTER *ioc = hd->ioc;
1da177e4
LT		 2041
2042 do {
e80b002b 2043 spin_lock_irqsave(&ioc->FreeQlock, flags);
1da177e4
LT		 2044 if (hd->tmState == TM_STATE_NONE) {
2045 hd->tmState = TM_STATE_IN_PROGRESS;
2046 hd->tmPending = 1;
e80b002b 2047 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
c6678e0c 2048 status = SUCCESS;
1da177e4
LT		 2049 break;
2050 }
e80b002b 2051 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1da177e4
LT		 2052 msleep(250);
2053 } while (--loop_count);
2054
2055 return status;
2056}
2057
2058/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2059/**
2060 * mptscsih_tm_wait_for_completion - wait for completion of TM task
2061 * @hd: Pointer to MPT host structure.
1544d677 2062 * @timeout: timeout value
1da177e4
LT		 2063 *
2064 * Returns {SUCCESS,FAILED}.
2065 */
2066static int
2067mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout )
2068{
2069 unsigned long flags;
2070 int loop_count = 4 * timeout;
2071 int status = FAILED;
e80b002b 2072 MPT_ADAPTER *ioc = hd->ioc;
1da177e4
LT		 2073
2074 do {
e80b002b 2075 spin_lock_irqsave(&ioc->FreeQlock, flags);
1da177e4
LT		 2076 if(hd->tmPending == 0) {
2077 status = SUCCESS;
e80b002b 2078 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1da177e4
LT		 2079 break;
2080 }
e80b002b 2081 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
d6be06c8 2082 msleep(250);
1da177e4
LT		 2083 } while (--loop_count);
2084
2085 return status;
2086}
2087
9f63bb73
ME		 2088/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2089static void
2090mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2091{
2092 char *desc;
2093
2094 switch (response_code) {
2095 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2096 desc = "The task completed.";
2097 break;
2098 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2099 desc = "The IOC received an invalid frame status.";
2100 break;
2101 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2102 desc = "The task type is not supported.";
2103 break;
2104 case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2105 desc = "The requested task failed.";
2106 break;
2107 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2108 desc = "The task completed successfully.";
2109 break;
2110 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2111 desc = "The LUN request is invalid.";
2112 break;
2113 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2114 desc = "The task is in the IOC queue and has not been sent to target.";
2115 break;
2116 default:
2117 desc = "unknown";
2118 break;
2119 }
2120 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2121 ioc->name, response_code, desc);
2122}
2123
1da177e4
LT		 2124/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2125/**
2126 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2127 * @ioc: Pointer to MPT_ADAPTER structure
2128 * @mf: Pointer to SCSI task mgmt request frame
2129 * @mr: Pointer to SCSI task mgmt reply frame
2130 *
2131 * This routine is called from mptbase.c::mpt_interrupt() at the completion
2132 * of any SCSI task management request.
2133 * This routine is registered with the MPT (base) driver at driver
2134 * load/init time via the mpt_register() API call.
2135 *
2136 * Returns 1 indicating alloc'd request frame ptr should be freed.
cd2c6191 2137 **/
0d0c7974 2138int
1da177e4
LT		 2139mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2140{
2141 SCSITaskMgmtReply_t *pScsiTmReply;
2142 SCSITaskMgmt_t *pScsiTmReq;
2143 MPT_SCSI_HOST *hd;
2144 unsigned long flags;
2145 u16 iocstatus;
2146 u8 tmType;
cd2c6191 2147 u32 termination_count;
1da177e4 2148
6757d6b4 2149 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt completed (mf=%p,mr=%p)\n",
cd2c6191
EM		 2150 ioc->name, mf, mr));
2151 if (!ioc->sh) {
6757d6b4 2152 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
cd2c6191 2153 "TaskMgmt Complete: NULL Scsi Host Ptr\n", ioc->name));
1da177e4
LT		 2154 return 1;
2155 }
2156
2157 if (mr == NULL) {
6757d6b4 2158 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
cd2c6191 2159 "ERROR! TaskMgmt Reply: NULL Request %p\n", ioc->name, mf));
1da177e4 2160 return 1;
cd2c6191 2161 }
1da177e4 2162
e7eae9f6 2163 hd = shost_priv(ioc->sh);
cd2c6191
EM		 2164 pScsiTmReply = (SCSITaskMgmtReply_t*)mr;
2165 pScsiTmReq = (SCSITaskMgmt_t*)mf;
2166 tmType = pScsiTmReq->TaskType;
2167 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2168 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
2169
2170 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
2171 pScsiTmReply->ResponseCode)
2172 mptscsih_taskmgmt_response_code(ioc,
2173 pScsiTmReply->ResponseCode);
6757d6b4
PS		 2174 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
2175
2176#ifdef CONFIG_FUSION_LOGGING
2177 if ((ioc->debug_level & MPT_DEBUG_REPLY) ||
2178 (ioc->debug_level & MPT_DEBUG_TM ))
2179 printk("%s: ha=%d [%d:%d:0] task_type=0x%02X "
2180 "iocstatus=0x%04X\n\tloginfo=0x%08X response_code=0x%02X "
2181 "term_cmnds=%d\n", __FUNCTION__, ioc->id, pScsiTmReply->Bus,
2182 pScsiTmReply->TargetID, pScsiTmReq->TaskType,
2183 le16_to_cpu(pScsiTmReply->IOCStatus),
2184 le32_to_cpu(pScsiTmReply->IOCLogInfo),pScsiTmReply->ResponseCode,
2185 le32_to_cpu(pScsiTmReply->TerminationCount));
cd2c6191
EM		 2186#endif
2187 if (!iocstatus) {
6757d6b4 2188 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT " TaskMgmt SUCCESS\n", ioc->name));
cd2c6191
EM		 2189 hd->abortSCpnt = NULL;
2190 goto out;
2191 }
1da177e4 2192
cd2c6191 2193 /* Error? (anything non-zero?) */
9f63bb73 2194
cd2c6191
EM		 2195 /* clear flags and continue.
2196 */
2197 switch (tmType) {
1da177e4 2198
cd2c6191
EM		 2199 case MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2200 if (termination_count == 1)
2201 iocstatus = MPI_IOCSTATUS_SCSI_TASK_TERMINATED;
2202 hd->abortSCpnt = NULL;
2203 break;
1da177e4 2204
cd2c6191 2205 case MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS:
1da177e4 2206
cd2c6191
EM		 2207 /* If an internal command is present
2208 * or the TM failed - reload the FW.
2209 * FC FW may respond FAILED to an ABORT
2210 */
2211 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED ||
2212 hd->cmdPtr)
2213 if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0)
29dd3609 2214 printk(MYIOC_s_WARN_FMT " Firmware Reload FAILED!!\n", ioc->name);
cd2c6191 2215 break;
1da177e4 2216
cd2c6191
EM		 2217 case MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2218 default:
2219 break;
1da177e4
LT		 2220 }
2221
cd2c6191 2222 out:
1da177e4
LT		 2223 spin_lock_irqsave(&ioc->FreeQlock, flags);
2224 hd->tmPending = 0;
1da177e4 2225 hd->tmState = TM_STATE_NONE;
cd2c6191
EM		 2226 hd->tm_iocstatus = iocstatus;
2227 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1da177e4
LT		 2228
2229 return 1;
2230}
2231
2232/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2233/*
2234 * This is anyones guess quite frankly.
2235 */
0d0c7974 2236int
1da177e4
LT		 2237mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2238 sector_t capacity, int geom[])
2239{
2240 int heads;
2241 int sectors;
2242 sector_t cylinders;
2243 ulong dummy;
2244
2245 heads = 64;
2246 sectors = 32;
2247
2248 dummy = heads * sectors;
2249 cylinders = capacity;
2250 sector_div(cylinders,dummy);
2251
2252 /*
2253 * Handle extended translation size for logical drives
2254 * > 1Gb
2255 */
2256 if ((ulong)capacity >= 0x200000) {
2257 heads = 255;
2258 sectors = 63;
2259 dummy = heads * sectors;
2260 cylinders = capacity;
2261 sector_div(cylinders,dummy);
2262 }
2263
2264 /* return result */
2265 geom[0] = heads;
2266 geom[1] = sectors;
2267 geom[2] = cylinders;
2268
1da177e4
LT		 2269 return 0;
2270}
2271
f44e5461
ME		 2272/* Search IOC page 3 to determine if this is hidden physical disk
2273 *
2274 */
2275int
793955f5 2276mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
f44e5461 2277{
b506ade9 2278 struct inactive_raid_component_info *component_info;
f44e5461 2279 int i;
793955f5 2280 int rc = 0;
f44e5461 2281
793955f5
EM		 2282 if (!ioc->raid_data.pIocPg3)
2283 goto out;
f44e5461 2284 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
793955f5
EM		 2285 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2286 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2287 rc = 1;
2288 goto out;
2289 }
c92f222e
JB		 2290 }
2291
b506ade9
EM		 2292 /*
2293 * Check inactive list for matching phys disks
2294 */
2295 if (list_empty(&ioc->raid_data.inactive_list))
2296 goto out;
2297
2298 down(&ioc->raid_data.inactive_list_mutex);
2299 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2300 list) {
2301 if ((component_info->d.PhysDiskID == id) &&
2302 (component_info->d.PhysDiskBus == channel))
2303 rc = 1;
2304 }
2305 up(&ioc->raid_data.inactive_list_mutex);
2306
793955f5
EM		 2307 out:
2308 return rc;
c7c82987 2309}
793955f5 2310EXPORT_SYMBOL(mptscsih_is_phys_disk);
c7c82987 2311
793955f5
EM		 2312u8
2313mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
1da177e4 2314{
b506ade9 2315 struct inactive_raid_component_info *component_info;
793955f5
EM		 2316 int i;
2317 int rc = -ENXIO;
c92f222e 2318
793955f5
EM		 2319 if (!ioc->raid_data.pIocPg3)
2320 goto out;
2321 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2322 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2323 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2324 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2325 goto out;
1da177e4 2326 }
1da177e4 2327 }
1da177e4 2328
b506ade9
EM		 2329 /*
2330 * Check inactive list for matching phys disks
2331 */
2332 if (list_empty(&ioc->raid_data.inactive_list))
2333 goto out;
2334
2335 down(&ioc->raid_data.inactive_list_mutex);
2336 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2337 list) {
2338 if ((component_info->d.PhysDiskID == id) &&
2339 (component_info->d.PhysDiskBus == channel))
2340 rc = component_info->d.PhysDiskNum;
2341 }
2342 up(&ioc->raid_data.inactive_list_mutex);
2343
793955f5
EM		 2344 out:
2345 return rc;
c7c82987 2346}
793955f5 2347EXPORT_SYMBOL(mptscsih_raid_id_to_num);
1da177e4 2348
c7c82987
MED		 2349/*
2350 * OS entry point to allow for host driver to free allocated memory
2351 * Called if no device present or device being unloaded
2352 */
2353void
2354mptscsih_slave_destroy(struct scsi_device *sdev)
2355{
2356 struct Scsi_Host *host = sdev->host;
e7eae9f6 2357 MPT_SCSI_HOST *hd = shost_priv(host);
c7c82987
MED		 2358 VirtTarget *vtarget;
2359 VirtDevice *vdevice;
2360 struct scsi_target *starget;
2361
2362 starget = scsi_target(sdev);
2363 vtarget = starget->hostdata;
2364 vdevice = sdev->hostdata;
2365
2366 mptscsih_search_running_cmds(hd, vdevice);
c7c82987 2367 vtarget->num_luns--;
c7c82987
MED		 2368 mptscsih_synchronize_cache(hd, vdevice);
2369 kfree(vdevice);
2370 sdev->hostdata = NULL;
1da177e4
LT		 2371}
2372
6e3815ba
MED		 2373/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2374/*
2375 * mptscsih_change_queue_depth - This function will set a devices queue depth
2376 * @sdev: per scsi_device pointer
2377 * @qdepth: requested queue depth
2378 *
2379 * Adding support for new 'change_queue_depth' api.
2380*/
2381int
2382mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
1da177e4 2383{
e7eae9f6 2384 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
c7c82987
MED		 2385 VirtTarget *vtarget;
2386 struct scsi_target *starget;
2387 int max_depth;
2388 int tagged;
e80b002b 2389 MPT_ADAPTER *ioc = hd->ioc;
1da177e4 2390
c7c82987
MED		 2391 starget = scsi_target(sdev);
2392 vtarget = starget->hostdata;
6e3815ba 2393
e80b002b 2394 if (ioc->bus_type == SPI) {
c92f222e 2395 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
1da177e4 2396 max_depth = 1;
c92f222e
JB		 2397 else if (sdev->type == TYPE_DISK &&
2398 vtarget->minSyncFactor <= MPT_ULTRA160)
2399 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2400 else
2401 max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
1da177e4
LT		 2402 } else
2403 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2404
2405 if (qdepth > max_depth)
2406 qdepth = max_depth;
2407 if (qdepth == 1)
2408 tagged = 0;
2409 else
2410 tagged = MSG_SIMPLE_TAG;
2411
6e3815ba
MED		 2412 scsi_adjust_queue_depth(sdev, tagged, qdepth);
2413 return sdev->queue_depth;
1da177e4
LT		 2414}
2415
1da177e4
LT		 2416/*
2417 * OS entry point to adjust the queue_depths on a per-device basis.
2418 * Called once per device the bus scan. Use it to force the queue_depth
2419 * member to 1 if a device does not support Q tags.
2420 * Return non-zero if fails.
2421 */
0d0c7974 2422int
c7c82987 2423mptscsih_slave_configure(struct scsi_device *sdev)
1da177e4 2424{
c7c82987
MED		 2425 struct Scsi_Host *sh = sdev->host;
2426 VirtTarget *vtarget;
2427 VirtDevice *vdevice;
2428 struct scsi_target *starget;
e7eae9f6 2429 MPT_SCSI_HOST *hd = shost_priv(sh);
e80b002b 2430 MPT_ADAPTER *ioc = hd->ioc;
1da177e4 2431
c7c82987
MED		 2432 starget = scsi_target(sdev);
2433 vtarget = starget->hostdata;
2434 vdevice = sdev->hostdata;
1da177e4 2435
e80b002b 2436 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
793955f5 2437 "device @ %p, channel=%d, id=%d, lun=%d\n",
e80b002b
EM		 2438 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2439 if (ioc->bus_type == SPI)
2440 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
c7c82987 2441 "sdtr %d wdtr %d ppr %d inq length=%d\n",
e80b002b 2442 ioc->name, sdev->sdtr, sdev->wdtr,
c7c82987
MED		 2443 sdev->ppr, sdev->inquiry_len));
2444
2445 if (sdev->id > sh->max_id) {
1da177e4 2446 /* error case, should never happen */
c7c82987 2447 scsi_adjust_queue_depth(sdev, 0, 1);
1da177e4
LT		 2448 goto slave_configure_exit;
2449 }
2450
793955f5 2451 vdevice->configured_lun = 1;
c7c82987 2452 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
1da177e4 2453
e80b002b 2454 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1da177e4 2455 "Queue depth=%d, tflags=%x\n",
e80b002b 2456 ioc->name, sdev->queue_depth, vtarget->tflags));
1da177e4 2457
e80b002b
EM		 2458 if (ioc->bus_type == SPI)
2459 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
c7c82987 2460 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
e80b002b 2461 ioc->name, vtarget->negoFlags, vtarget->maxOffset,
c7c82987 2462 vtarget->minSyncFactor));
1da177e4
LT		 2463
2464slave_configure_exit:
2465
e80b002b 2466 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1da177e4 2467 "tagged %d, simple %d, ordered %d\n",
e80b002b 2468 ioc->name,sdev->tagged_supported, sdev->simple_tags,
c7c82987 2469 sdev->ordered_tags));
1da177e4
LT		 2470
2471 return 0;
2472}
2473
1da177e4
LT		 2474/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2475/*
2476 * Private routines...
2477 */
2478
2479/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2480/* Utility function to copy sense data from the scsi_cmnd buffer
2481 * to the FC and SCSI target structures.
2482 *
2483 */
2484static void
0d0c7974 2485mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
1da177e4 2486{
a69de507 2487 VirtDevice *vdevice;
1da177e4
LT		 2488 SCSIIORequest_t *pReq;
2489 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount);
e80b002b 2490 MPT_ADAPTER *ioc = hd->ioc;
1da177e4
LT		 2491
2492 /* Get target structure
2493 */
2494 pReq = (SCSIIORequest_t *) mf;
a69de507 2495 vdevice = sc->device->hostdata;
1da177e4
LT		 2496
2497 if (sense_count) {
2498 u8 *sense_data;
2499 int req_index;
2500
2501 /* Copy the sense received into the scsi command block. */
2502 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
e80b002b 2503 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
1da177e4
LT		 2504 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2505
2506 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2507 */
e80b002b 2508 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
a69de507 2509 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
1da177e4 2510 int idx;
1da177e4 2511
5b5ef4f6 2512 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
1da177e4
LT		 2513 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2514 ioc->events[idx].eventContext = ioc->eventContext;
2515
3d9780b9
DJ		 2516 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2517 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2518 (sc->device->channel << 8) | sc->device->id;
1da177e4 2519
3d9780b9 2520 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
1da177e4
LT		 2521
2522 ioc->eventContext++;
e80b002b 2523 if (ioc->pcidev->vendor ==
786899b0 2524 PCI_VENDOR_ID_IBM) {
e80b002b 2525 mptscsih_issue_sep_command(ioc,
a69de507
EM		 2526 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2527 vdevice->vtarget->tflags |=
786899b0
EM		 2528 MPT_TARGET_FLAGS_LED_ON;
2529 }
1da177e4
LT		 2530 }
2531 }
2532 } else {
e80b002b
EM		 2533 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2534 ioc->name));
1da177e4
LT		 2535 }
2536}
2537
e8206381
EM		 2538/**
2539 * mptscsih_get_scsi_lookup
2540 *
2541 * retrieves scmd entry from ScsiLookup[] array list
2542 *
2543 * @ioc: Pointer to MPT_ADAPTER structure
2544 * @i: index into the array
2545 *
2546 * Returns the scsi_cmd pointer
2547 *
2548 **/
2549static struct scsi_cmnd *
2550mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
1da177e4 2551{
e8206381
EM		 2552 unsigned long flags;
2553 struct scsi_cmnd *scmd;
2554
2555 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2556 scmd = ioc->ScsiLookup[i];
2557 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2558
2559 return scmd;
2560}
2561
2562/**
2563 * mptscsih_getclear_scsi_lookup
2564 *
2565 * retrieves and clears scmd entry from ScsiLookup[] array list
2566 *
2567 * @ioc: Pointer to MPT_ADAPTER structure
2568 * @i: index into the array
2569 *
2570 * Returns the scsi_cmd pointer
2571 *
2572 **/
2573static struct scsi_cmnd *
2574mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2575{
2576 unsigned long flags;
2577 struct scsi_cmnd *scmd;
2578
2579 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2580 scmd = ioc->ScsiLookup[i];
2581 ioc->ScsiLookup[i] = NULL;
2582 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2583
2584 return scmd;
2585}
2586
2587/**
2588 * mptscsih_set_scsi_lookup
2589 *
2590 * writes a scmd entry into the ScsiLookup[] array list
2591 *
2592 * @ioc: Pointer to MPT_ADAPTER structure
2593 * @i: index into the array
2594 * @scmd: scsi_cmnd pointer
2595 *
2596 **/
2597static void
2598mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2599{
2600 unsigned long flags;
1da177e4 2601
e8206381
EM		 2602 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2603 ioc->ScsiLookup[i] = scmd;
2604 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2605}
2606
2607/**
2608 * SCPNT_TO_LOOKUP_IDX
2609 *
2610 * search's for a given scmd in the ScsiLookup[] array list
2611 *
2612 * @ioc: Pointer to MPT_ADAPTER structure
2613 * @scmd: scsi_cmnd pointer
2614 *
2615 **/
2616static int
2617SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2618{
2619 unsigned long flags;
2620 int i, index=-1;
1da177e4 2621
e8206381
EM		 2622 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2623 for (i = 0; i < ioc->req_depth; i++) {
2624 if (ioc->ScsiLookup[i] == sc) {
2625 index = i;
2626 goto out;
1da177e4
LT		 2627 }
2628 }
2629
e8206381
EM		 2630 out:
2631 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2632 return index;
1da177e4
LT		 2633}
2634
2635/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
0d0c7974 2636int
1da177e4
LT		 2637mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2638{
2639 MPT_SCSI_HOST *hd;
2640 unsigned long flags;
2641
29dd3609
EM		 2642 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2643 ": IOC %s_reset routed to SCSI host driver!\n",
2644 ioc->name, reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
2645 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1da177e4
LT		 2646
2647 /* If a FW reload request arrives after base installed but
2648 * before all scsi hosts have been attached, then an alt_ioc
2649 * may have a NULL sh pointer.
2650 */
e7eae9f6 2651 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
1da177e4
LT		 2652 return 0;
2653 else
e7eae9f6 2654 hd = shost_priv(ioc->sh);
1da177e4
LT		 2655
2656 if (reset_phase == MPT_IOC_SETUP_RESET) {
6757d6b4 2657 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Setup-Diag Reset\n", ioc->name));
1da177e4
LT		 2658
2659 /* Clean Up:
2660 * 1. Set Hard Reset Pending Flag
2661 * All new commands go to doneQ
2662 */
2663 hd->resetPending = 1;
2664
2665 } else if (reset_phase == MPT_IOC_PRE_RESET) {
6757d6b4 2666 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Pre-Diag Reset\n", ioc->name));
1da177e4
LT		 2667
2668 /* 2. Flush running commands
2669 * Clean ScsiLookup (and associated memory)
2670 * AND clean mytaskQ
2671 */
2672
2673 /* 2b. Reply to OS all known outstanding I/O commands.
2674 */
2675 mptscsih_flush_running_cmds(hd);
2676
2677 /* 2c. If there was an internal command that
2678 * has not completed, configuration or io request,
2679 * free these resources.
2680 */
2681 if (hd->cmdPtr) {
2682 del_timer(&hd->timer);
2683 mpt_free_msg_frame(ioc, hd->cmdPtr);
2684 }
2685
6757d6b4 2686 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Pre-Reset complete.\n", ioc->name));
1da177e4
LT		 2687
2688 } else {
6757d6b4 2689 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Post-Diag Reset\n", ioc->name));
1da177e4
LT		 2690
2691 /* Once a FW reload begins, all new OS commands are
2692 * redirected to the doneQ w/ a reset status.
2693 * Init all control structures.
2694 */
2695
1da177e4
LT		 2696 /* 2. Chain Buffer initialization
2697 */
2698
a9b2937a 2699 /* 4. Renegotiate to all devices, if SPI
1da177e4 2700 */
1da177e4
LT		 2701
2702 /* 5. Enable new commands to be posted
2703 */
2704 spin_lock_irqsave(&ioc->FreeQlock, flags);
2705 hd->tmPending = 0;
2706 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2707 hd->resetPending = 0;
2708 hd->tmState = TM_STATE_NONE;
2709
2710 /* 6. If there was an internal command,
2711 * wake this process up.
2712 */
2713 if (hd->cmdPtr) {
2714 /*
2715 * Wake up the original calling thread
2716 */
2717 hd->pLocal = &hd->localReply;
2718 hd->pLocal->completion = MPT_SCANDV_DID_RESET;
0d0c7974
MED		 2719 hd->scandv_wait_done = 1;
2720 wake_up(&hd->scandv_waitq);
1da177e4
LT		 2721 hd->cmdPtr = NULL;
2722 }
2723
6757d6b4 2724 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Post-Reset complete.\n", ioc->name));
1da177e4
LT		 2725
2726 }
2727
2728 return 1; /* currently means nothing really */
2729}
2730
2731/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
0d0c7974 2732int
1da177e4
LT		 2733mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2734{
2735 MPT_SCSI_HOST *hd;
2736 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2737
6757d6b4 2738 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1da177e4
LT		 2739 ioc->name, event));
2740
466544d8 2741 if (ioc->sh == NULL ||
e7eae9f6 2742 ((hd = shost_priv(ioc->sh)) == NULL))
466544d8
MED		 2743 return 1;
2744
1da177e4
LT		 2745 switch (event) {
2746 case MPI_EVENT_UNIT_ATTENTION: /* 03 */
2747 /* FIXME! */
2748 break;
2749 case MPI_EVENT_IOC_BUS_RESET: /* 04 */
2750 case MPI_EVENT_EXT_BUS_RESET: /* 05 */
a9b2937a 2751 if (hd && (ioc->bus_type == SPI) && (hd->soft_resets < -1))
466544d8 2752 hd->soft_resets++;
1da177e4
LT		 2753 break;
2754 case MPI_EVENT_LOGOUT: /* 09 */
2755 /* FIXME! */
2756 break;
2757
05e8ec17 2758 case MPI_EVENT_RESCAN: /* 06 */
05e8ec17
MR		 2759 break;
2760
1da177e4
LT		 2761 /*
2762 * CHECKME! Don't think we need to do
2763 * anything for these, but...
2764 */
1da177e4
LT		 2765 case MPI_EVENT_LINK_STATUS_CHANGE: /* 07 */
2766 case MPI_EVENT_LOOP_STATE_CHANGE: /* 08 */
2767 /*
2768 * CHECKME! Falling thru...
2769 */
2770 break;
2771
2772 case MPI_EVENT_INTEGRATED_RAID: /* 0B */
466544d8 2773 break;
1da177e4 2774
1da177e4
LT		 2775 case MPI_EVENT_NONE: /* 00 */
2776 case MPI_EVENT_LOG_DATA: /* 01 */
2777 case MPI_EVENT_STATE_CHANGE: /* 02 */
2778 case MPI_EVENT_EVENT_CHANGE: /* 0A */
2779 default:
29dd3609
EM		 2780 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": Ignoring event (=%02Xh)\n",
2781 ioc->name, event));
1da177e4
LT		 2782 break;
2783 }
2784
2785 return 1; /* currently means nothing really */
2786}
2787
1da177e4
LT		 2788/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2789/*
2790 * Bus Scan and Domain Validation functionality ...
2791 */
2792
2793/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2794/*
2795 * mptscsih_scandv_complete - Scan and DV callback routine registered
2796 * to Fustion MPT (base) driver.
2797 *
2798 * @ioc: Pointer to MPT_ADAPTER structure
2799 * @mf: Pointer to original MPT request frame
2800 * @mr: Pointer to MPT reply frame (NULL if TurboReply)
2801 *
2802 * This routine is called from mpt.c::mpt_interrupt() at the completion
2803 * of any SCSI IO request.
2804 * This routine is registered with the Fusion MPT (base) driver at driver
2805 * load/init time via the mpt_register() API call.
2806 *
2807 * Returns 1 indicating alloc'd request frame ptr should be freed.
2808 *
2809 * Remark: Sets a completion code and (possibly) saves sense data
2810 * in the IOC member localReply structure.
2811 * Used ONLY for DV and other internal commands.
2812 */
0d0c7974 2813int
1da177e4
LT		 2814mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2815{
2816 MPT_SCSI_HOST *hd;
2817 SCSIIORequest_t *pReq;
2818 int completionCode;
2819 u16 req_idx;
2820
e7eae9f6 2821 hd = shost_priv(ioc->sh);
0d0c7974 2822
1da177e4
LT		 2823 if ((mf == NULL) ||
2824 (mf >= MPT_INDEX_2_MFPTR(ioc, ioc->req_depth))) {
2825 printk(MYIOC_s_ERR_FMT
2826 "ScanDvComplete, %s req frame ptr! (=%p)\n",
2827 ioc->name, mf?"BAD":"NULL", (void *) mf);
2828 goto wakeup;
2829 }
2830
1da177e4
LT		 2831 del_timer(&hd->timer);
2832 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
e8206381 2833 mptscsih_set_scsi_lookup(ioc, req_idx, NULL);
1da177e4
LT		 2834 pReq = (SCSIIORequest_t *) mf;
2835
2836 if (mf != hd->cmdPtr) {
2837 printk(MYIOC_s_WARN_FMT "ScanDvComplete (mf=%p, cmdPtr=%p, idx=%d)\n",
e80b002b 2838 ioc->name, (void *)mf, (void *) hd->cmdPtr, req_idx);
1da177e4
LT		 2839 }
2840 hd->cmdPtr = NULL;
2841
6757d6b4 2842 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScanDvComplete (mf=%p,mr=%p,idx=%d)\n",
e80b002b 2843 ioc->name, mf, mr, req_idx));
1da177e4
LT		 2844
2845 hd->pLocal = &hd->localReply;
2846 hd->pLocal->scsiStatus = 0;
2847
2848 /* If target struct exists, clear sense valid flag.
2849 */
2850 if (mr == NULL) {
2851 completionCode = MPT_SCANDV_GOOD;
2852 } else {
2853 SCSIIOReply_t *pReply;
2854 u16 status;
2855 u8 scsi_status;
2856
2857 pReply = (SCSIIOReply_t *) mr;
2858
2859 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2860 scsi_status = pReply->SCSIStatus;
2861
1da177e4
LT		 2862
2863 switch(status) {
2864
2865 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
2866 completionCode = MPT_SCANDV_SELECTION_TIMEOUT;
2867 break;
2868
2869 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
2870 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
2871 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
2872 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
2873 completionCode = MPT_SCANDV_DID_RESET;
2874 break;
2875
2876 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
2877 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
2878 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
2879 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2880 ConfigReply_t *pr = (ConfigReply_t *)mr;
2881 completionCode = MPT_SCANDV_GOOD;
2882 hd->pLocal->header.PageVersion = pr->Header.PageVersion;
2883 hd->pLocal->header.PageLength = pr->Header.PageLength;
2884 hd->pLocal->header.PageNumber = pr->Header.PageNumber;
2885 hd->pLocal->header.PageType = pr->Header.PageType;
2886
2887 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2888 /* If the RAID Volume request is successful,
2889 * return GOOD, else indicate that
2890 * some type of error occurred.
2891 */
2892 MpiRaidActionReply_t *pr = (MpiRaidActionReply_t *)mr;
637fa99b 2893 if (le16_to_cpu(pr->ActionStatus) == MPI_RAID_ACTION_ASTATUS_SUCCESS)
1da177e4
LT		 2894 completionCode = MPT_SCANDV_GOOD;
2895 else
2896 completionCode = MPT_SCANDV_SOME_ERROR;
c92f222e 2897 memcpy(hd->pLocal->sense, pr, sizeof(hd->pLocal->sense));
1da177e4
LT		 2898
2899 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
2900 u8 *sense_data;
2901 int sz;
2902
2903 /* save sense data in global structure
2904 */
2905 completionCode = MPT_SCANDV_SENSE;
2906 hd->pLocal->scsiStatus = scsi_status;
e80b002b 2907 sense_data = ((u8 *)ioc->sense_buf_pool +
1da177e4
LT		 2908 (req_idx * MPT_SENSE_BUFFER_ALLOC));
2909
2910 sz = min_t(int, pReq->SenseBufferLength,
2911 SCSI_STD_SENSE_BYTES);
2912 memcpy(hd->pLocal->sense, sense_data, sz);
2913
29dd3609
EM		 2914 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Check Condition, sense ptr %p\n",
2915 ioc->name, sense_data));
1da177e4
LT		 2916 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2917 if (pReq->CDB[0] == INQUIRY)
2918 completionCode = MPT_SCANDV_ISSUE_SENSE;
2919 else
2920 completionCode = MPT_SCANDV_DID_RESET;
2921 }
2922 else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2923 completionCode = MPT_SCANDV_DID_RESET;
2924 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2925 completionCode = MPT_SCANDV_DID_RESET;
2926 else {
2927 completionCode = MPT_SCANDV_GOOD;
2928 hd->pLocal->scsiStatus = scsi_status;
2929 }
2930 break;
2931
2932 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
2933 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2934 completionCode = MPT_SCANDV_DID_RESET;
2935 else
2936 completionCode = MPT_SCANDV_SOME_ERROR;
2937 break;
2938
2939 default:
2940 completionCode = MPT_SCANDV_SOME_ERROR;
2941 break;
2942
2943 } /* switch(status) */
2944
1da177e4
LT		 2945 } /* end of address reply case */
2946
2947 hd->pLocal->completion = completionCode;
2948
2949 /* MF and RF are freed in mpt_interrupt
2950 */
2951wakeup:
2952 /* Free Chain buffers (will never chain) in scan or dv */
2953 //mptscsih_freeChainBuffers(ioc, req_idx);
2954
2955 /*
2956 * Wake up the original calling thread
2957 */
0d0c7974
MED		 2958 hd->scandv_wait_done = 1;
2959 wake_up(&hd->scandv_waitq);
1da177e4
LT		 2960
2961 return 1;
2962}
2963
2964/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2965/* mptscsih_timer_expired - Call back for timer process.
2966 * Used only for dv functionality.
2967 * @data: Pointer to MPT_SCSI_HOST recast as an unsigned long
2968 *
2969 */
0d0c7974
MED		 2970void
2971mptscsih_timer_expired(unsigned long data)
1da177e4
LT		 2972{
2973 MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *) data;
e80b002b 2974 MPT_ADAPTER *ioc = hd->ioc;
1da177e4 2975
e80b002b 2976 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Timer Expired! Cmd %p\n", ioc->name, hd->cmdPtr));
1da177e4
LT		 2977
2978 if (hd->cmdPtr) {
2979 MPIHeader_t *cmd = (MPIHeader_t *)hd->cmdPtr;
2980
2981 if (cmd->Function == MPI_FUNCTION_SCSI_IO_REQUEST) {
2982 /* Desire to issue a task management request here.
2983 * TM requests MUST be single threaded.
2984 * If old eh code and no TM current, issue request.
2985 * If new eh code, do nothing. Wait for OS cmd timeout
2986 * for bus reset.
2987 */
1da177e4
LT		 2988 } else {
2989 /* Perform a FW reload */
e80b002b
EM		 2990 if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0) {
2991 printk(MYIOC_s_WARN_FMT "Firmware Reload FAILED!\n", ioc->name);
1da177e4
LT		 2992 }
2993 }
2994 } else {
2995 /* This should NEVER happen */
e80b002b 2996 printk(MYIOC_s_WARN_FMT "Null cmdPtr!!!!\n", ioc->name);
1da177e4
LT		 2997 }
2998
2999 /* No more processing.
3000 * TM call will generate an interrupt for SCSI TM Management.
3001 * The FW will reply to all outstanding commands, callback will finish cleanup.
3002 * Hard reset clean-up will free all resources.
3003 */
e80b002b 3004 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Timer Expired Complete!\n", ioc->name));
1da177e4
LT		 3005
3006 return;
3007}
3008
1da177e4
LT		 3009
3010/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3011/**
3012 * mptscsih_do_cmd - Do internal command.
3013 * @hd: MPT_SCSI_HOST pointer
3014 * @io: INTERNAL_CMD pointer.
3015 *
3016 * Issue the specified internally generated command and do command
3017 * specific cleanup. For bus scan / DV only.
3018 * NOTES: If command is Inquiry and status is good,
3019 * initialize a target structure, save the data
3020 *
3021 * Remark: Single threaded access only.
3022 *
3023 * Return:
3024 * < 0 if an illegal command or no resources
3025 *
3026 * 0 if good
3027 *
3028 * > 0 if command complete but some type of completion error.
3029 */
3030static int
3031mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
3032{
3033 MPT_FRAME_HDR *mf;
3034 SCSIIORequest_t *pScsiReq;
3035 SCSIIORequest_t ReqCopy;
3036 int my_idx, ii, dir;
3037 int rc, cmdTimeout;
3038 int in_isr;
3039 char cmdLen;
3040 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
3041 char cmd = io->cmd;
e80b002b 3042 MPT_ADAPTER *ioc = hd->ioc;
1da177e4
LT		 3043
3044 in_isr = in_interrupt();
3045 if (in_isr) {
e80b002b
EM		 3046 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Internal SCSI IO request not allowed in ISR context!\n",
3047 ioc->name));
1da177e4
LT		 3048 return -EPERM;
3049 }
3050
3051
3052 /* Set command specific information
3053 */
3054 switch (cmd) {
3055 case INQUIRY:
3056 cmdLen = 6;
3057 dir = MPI_SCSIIO_CONTROL_READ;
3058 CDB[0] = cmd;
3059 CDB[4] = io->size;
3060 cmdTimeout = 10;
3061 break;
3062
3063 case TEST_UNIT_READY:
3064 cmdLen = 6;
3065 dir = MPI_SCSIIO_CONTROL_READ;
3066 cmdTimeout = 10;
3067 break;
3068
3069 case START_STOP:
3070 cmdLen = 6;
3071 dir = MPI_SCSIIO_CONTROL_READ;
3072 CDB[0] = cmd;
3073 CDB[4] = 1; /*Spin up the disk */
3074 cmdTimeout = 15;
3075 break;
3076
3077 case REQUEST_SENSE:
3078 cmdLen = 6;
3079 CDB[0] = cmd;
3080 CDB[4] = io->size;
3081 dir = MPI_SCSIIO_CONTROL_READ;
3082 cmdTimeout = 10;
3083 break;
3084
3085 case READ_BUFFER:
3086 cmdLen = 10;
3087 dir = MPI_SCSIIO_CONTROL_READ;
3088 CDB[0] = cmd;
3089 if (io->flags & MPT_ICFLAG_ECHO) {
3090 CDB[1] = 0x0A;
3091 } else {
3092 CDB[1] = 0x02;
3093 }
3094
3095 if (io->flags & MPT_ICFLAG_BUF_CAP) {
3096 CDB[1] |= 0x01;
3097 }
3098 CDB[6] = (io->size >> 16) & 0xFF;
3099 CDB[7] = (io->size >> 8) & 0xFF;
3100 CDB[8] = io->size & 0xFF;
3101 cmdTimeout = 10;
3102 break;
3103
3104 case WRITE_BUFFER:
3105 cmdLen = 10;
3106 dir = MPI_SCSIIO_CONTROL_WRITE;
3107 CDB[0] = cmd;
3108 if (io->flags & MPT_ICFLAG_ECHO) {
3109 CDB[1] = 0x0A;
3110 } else {
3111 CDB[1] = 0x02;
3112 }
3113 CDB[6] = (io->size >> 16) & 0xFF;
3114 CDB[7] = (io->size >> 8) & 0xFF;
3115 CDB[8] = io->size & 0xFF;
3116 cmdTimeout = 10;
3117 break;
3118
3119 case RESERVE:
3120 cmdLen = 6;
3121 dir = MPI_SCSIIO_CONTROL_READ;
3122 CDB[0] = cmd;
3123 cmdTimeout = 10;
3124 break;
3125
3126 case RELEASE:
3127 cmdLen = 6;
3128 dir = MPI_SCSIIO_CONTROL_READ;
3129 CDB[0] = cmd;
3130 cmdTimeout = 10;
3131 break;
3132
3133 case SYNCHRONIZE_CACHE:
3134 cmdLen = 10;
3135 dir = MPI_SCSIIO_CONTROL_READ;
3136 CDB[0] = cmd;
3137// CDB[1] = 0x02; /* set immediate bit */
3138 cmdTimeout = 10;
3139 break;
3140
3141 default:
3142 /* Error Case */
3143 return -EFAULT;
3144 }
3145
3146 /* Get and Populate a free Frame
3147 */
e80b002b
EM		 3148 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
3149 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "No msg frames!\n",
3150 ioc->name));
1da177e4
LT		 3151 return -EBUSY;
3152 }
3153
3154 pScsiReq = (SCSIIORequest_t *) mf;
3155
3156 /* Get the request index */
3157 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
3158 ADD_INDEX_LOG(my_idx); /* for debug */
3159
3160 if (io->flags & MPT_ICFLAG_PHYS_DISK) {
3161 pScsiReq->TargetID = io->physDiskNum;
3162 pScsiReq->Bus = 0;
3163 pScsiReq->ChainOffset = 0;
3164 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3165 } else {
3166 pScsiReq->TargetID = io->id;
793955f5 3167 pScsiReq->Bus = io->channel;
1da177e4
LT		 3168 pScsiReq->ChainOffset = 0;
3169 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
3170 }
3171
3172 pScsiReq->CDBLength = cmdLen;
3173 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
3174
3175 pScsiReq->Reserved = 0;
3176
3177 pScsiReq->MsgFlags = mpt_msg_flags();
3178 /* MsgContext set in mpt_get_msg_fram call */
3179
793955f5 3180 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
1da177e4
LT		 3181
3182 if (io->flags & MPT_ICFLAG_TAGGED_CMD)
3183 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
3184 else
3185 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3186
3187 if (cmd == REQUEST_SENSE) {
3188 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
e80b002b
EM		 3189 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Untagged! 0x%2x\n",
3190 ioc->name, cmd));
1da177e4
LT		 3191 }
3192
3193 for (ii=0; ii < 16; ii++)
3194 pScsiReq->CDB[ii] = CDB[ii];
3195
3196 pScsiReq->DataLength = cpu_to_le32(io->size);
e80b002b 3197 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1da177e4
LT		 3198 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
3199
e80b002b
EM		 3200 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Sending Command 0x%x for (%d:%d:%d)\n",
3201 ioc->name, cmd, io->channel, io->id, io->lun));
1da177e4
LT		 3202
3203 if (dir == MPI_SCSIIO_CONTROL_READ) {
3204 mpt_add_sge((char *) &pScsiReq->SGL,
3205 MPT_SGE_FLAGS_SSIMPLE_READ | io->size,
3206 io->data_dma);
3207 } else {
3208 mpt_add_sge((char *) &pScsiReq->SGL,
3209 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size,
3210 io->data_dma);
3211 }
3212
3213 /* The ISR will free the request frame, but we need
3214 * the information to initialize the target. Duplicate.
3215 */
3216 memcpy(&ReqCopy, pScsiReq, sizeof(SCSIIORequest_t));
3217
3218 /* Issue this command after:
3219 * finish init
3220 * add timer
3221 * Wait until the reply has been received
3222 * ScsiScanDvCtx callback function will
3223 * set hd->pLocal;
3224 * set scandv_wait_done and call wake_up
3225 */
3226 hd->pLocal = NULL;
3227 hd->timer.expires = jiffies + HZ*cmdTimeout;
0d0c7974 3228 hd->scandv_wait_done = 0;
1da177e4
LT		 3229
3230 /* Save cmd pointer, for resource free if timeout or
3231 * FW reload occurs
3232 */
3233 hd->cmdPtr = mf;
3234
3235 add_timer(&hd->timer);
e80b002b 3236 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
0d0c7974 3237 wait_event(hd->scandv_waitq, hd->scandv_wait_done);
1da177e4
LT		 3238
3239 if (hd->pLocal) {
3240 rc = hd->pLocal->completion;
3241 hd->pLocal->skip = 0;
3242
3243 /* Always set fatal error codes in some cases.
3244 */
3245 if (rc == MPT_SCANDV_SELECTION_TIMEOUT)
3246 rc = -ENXIO;
3247 else if (rc == MPT_SCANDV_SOME_ERROR)
3248 rc = -rc;
3249 } else {
3250 rc = -EFAULT;
3251 /* This should never happen. */
e80b002b
EM		 3252 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "_do_cmd: Null pLocal!!!\n",
3253 ioc->name));
1da177e4
LT		 3254 }
3255
3256 return rc;
3257}
3258
c7c82987
MED		 3259/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3260/**
3261 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3262 * @hd: Pointer to a SCSI HOST structure
d9489fb6 3263 * @vdevice: virtual target device
c7c82987
MED		 3264 *
3265 * Uses the ISR, but with special processing.
3266 * MUST be single-threaded.
3267 *
3268 */
3269static void
3270mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3271{
3272 INTERNAL_CMD iocmd;
1da177e4 3273
cc78d30a
EM		 3274 /* Ignore hidden raid components, this is handled when the command
3275 * is sent to the volume
3276 */
3277 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3278 return;
3279
3280 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3281 !vdevice->configured_lun)
3282 return;
3283
c7c82987
MED		 3284 /* Following parameters will not change
3285 * in this routine.
3286 */
3287 iocmd.cmd = SYNCHRONIZE_CACHE;
3288 iocmd.flags = 0;
3289 iocmd.physDiskNum = -1;
3290 iocmd.data = NULL;
3291 iocmd.data_dma = -1;
3292 iocmd.size = 0;
3293 iocmd.rsvd = iocmd.rsvd2 = 0;
793955f5
EM		 3294 iocmd.channel = vdevice->vtarget->channel;
3295 iocmd.id = vdevice->vtarget->id;
3296 iocmd.lun = vdevice->lun;
1da177e4 3297
cc78d30a 3298 mptscsih_do_cmd(hd, &iocmd);
1da177e4
LT		 3299}
3300
edb9068d
PS		 3301static ssize_t
3302mptscsih_version_fw_show(struct class_device *cdev, char *buf)
3303{
3304 struct Scsi_Host *host = class_to_shost(cdev);
e7eae9f6 3305 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3306 MPT_ADAPTER *ioc = hd->ioc;
3307
3308 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3309 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3310 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3311 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3312 ioc->facts.FWVersion.Word & 0x000000FF);
3313}
3314static CLASS_DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3315
3316static ssize_t
3317mptscsih_version_bios_show(struct class_device *cdev, char *buf)
3318{
3319 struct Scsi_Host *host = class_to_shost(cdev);
e7eae9f6 3320 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3321 MPT_ADAPTER *ioc = hd->ioc;
3322
3323 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3324 (ioc->biosVersion & 0xFF000000) >> 24,
3325 (ioc->biosVersion & 0x00FF0000) >> 16,
3326 (ioc->biosVersion & 0x0000FF00) >> 8,
3327 ioc->biosVersion & 0x000000FF);
3328}
3329static CLASS_DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3330
3331static ssize_t
3332mptscsih_version_mpi_show(struct class_device *cdev, char *buf)
3333{
3334 struct Scsi_Host *host = class_to_shost(cdev);
e7eae9f6 3335 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3336 MPT_ADAPTER *ioc = hd->ioc;
3337
3338 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3339}
3340static CLASS_DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3341
3342static ssize_t
3343mptscsih_version_product_show(struct class_device *cdev, char *buf)
3344{
3345 struct Scsi_Host *host = class_to_shost(cdev);
e7eae9f6 3346 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3347 MPT_ADAPTER *ioc = hd->ioc;
3348
3349 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3350}
3351static CLASS_DEVICE_ATTR(version_product, S_IRUGO,
3352 mptscsih_version_product_show, NULL);
3353
3354static ssize_t
3355mptscsih_version_nvdata_persistent_show(struct class_device *cdev, char *buf)
3356{
3357 struct Scsi_Host *host = class_to_shost(cdev);
e7eae9f6 3358 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3359 MPT_ADAPTER *ioc = hd->ioc;
3360
3361 return snprintf(buf, PAGE_SIZE, "%02xh\n",
3362 ioc->nvdata_version_persistent);
3363}
3364static CLASS_DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3365 mptscsih_version_nvdata_persistent_show, NULL);
3366
3367static ssize_t
3368mptscsih_version_nvdata_default_show(struct class_device *cdev, char *buf)
3369{
3370 struct Scsi_Host *host = class_to_shost(cdev);
e7eae9f6 3371 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3372 MPT_ADAPTER *ioc = hd->ioc;
3373
3374 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3375}
3376static CLASS_DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3377 mptscsih_version_nvdata_default_show, NULL);
3378
3379static ssize_t
3380mptscsih_board_name_show(struct class_device *cdev, char *buf)
3381{
3382 struct Scsi_Host *host = class_to_shost(cdev);
e7eae9f6 3383 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3384 MPT_ADAPTER *ioc = hd->ioc;
3385
3386 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3387}
3388static CLASS_DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3389
3390static ssize_t
3391mptscsih_board_assembly_show(struct class_device *cdev, char *buf)
3392{
3393 struct Scsi_Host *host = class_to_shost(cdev);
e7eae9f6 3394 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3395 MPT_ADAPTER *ioc = hd->ioc;
3396
3397 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3398}
3399static CLASS_DEVICE_ATTR(board_assembly, S_IRUGO,
3400 mptscsih_board_assembly_show, NULL);
3401
3402static ssize_t
3403mptscsih_board_tracer_show(struct class_device *cdev, char *buf)
3404{
3405 struct Scsi_Host *host = class_to_shost(cdev);
e7eae9f6 3406 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3407 MPT_ADAPTER *ioc = hd->ioc;
3408
3409 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3410}
3411static CLASS_DEVICE_ATTR(board_tracer, S_IRUGO,
3412 mptscsih_board_tracer_show, NULL);
3413
3414static ssize_t
3415mptscsih_io_delay_show(struct class_device *cdev, char *buf)
3416{
3417 struct Scsi_Host *host = class_to_shost(cdev);
e7eae9f6 3418 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3419 MPT_ADAPTER *ioc = hd->ioc;
3420
3421 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3422}
3423static CLASS_DEVICE_ATTR(io_delay, S_IRUGO,
3424 mptscsih_io_delay_show, NULL);
3425
3426static ssize_t
3427mptscsih_device_delay_show(struct class_device *cdev, char *buf)
3428{
3429 struct Scsi_Host *host = class_to_shost(cdev);
e7eae9f6 3430 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3431 MPT_ADAPTER *ioc = hd->ioc;
3432
3433 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3434}
3435static CLASS_DEVICE_ATTR(device_delay, S_IRUGO,
3436 mptscsih_device_delay_show, NULL);
3437
6757d6b4
PS		 3438static ssize_t
3439mptscsih_debug_level_show(struct class_device *cdev, char *buf)
3440{
3441 struct Scsi_Host *host = class_to_shost(cdev);
e7eae9f6 3442 MPT_SCSI_HOST *hd = shost_priv(host);
6757d6b4
PS		 3443 MPT_ADAPTER *ioc = hd->ioc;
3444
3445 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3446}
3447static ssize_t
3448mptscsih_debug_level_store(struct class_device *cdev, const char *buf,
3449 size_t count)
3450{
3451 struct Scsi_Host *host = class_to_shost(cdev);
e7eae9f6 3452 MPT_SCSI_HOST *hd = shost_priv(host);
6757d6b4
PS		 3453 MPT_ADAPTER *ioc = hd->ioc;
3454 int val = 0;
3455
3456 if (sscanf(buf, "%x", &val) != 1)
3457 return -EINVAL;
3458
3459 ioc->debug_level = val;
3460 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3461 ioc->name, ioc->debug_level);
3462 return strlen(buf);
3463}
3464static CLASS_DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3465 mptscsih_debug_level_show, mptscsih_debug_level_store);
3466
edb9068d
PS		 3467struct class_device_attribute *mptscsih_host_attrs[] = {
3468 &class_device_attr_version_fw,
3469 &class_device_attr_version_bios,
3470 &class_device_attr_version_mpi,
3471 &class_device_attr_version_product,
3472 &class_device_attr_version_nvdata_persistent,
3473 &class_device_attr_version_nvdata_default,
3474 &class_device_attr_board_name,
3475 &class_device_attr_board_assembly,
3476 &class_device_attr_board_tracer,
3477 &class_device_attr_io_delay,
3478 &class_device_attr_device_delay,
6757d6b4 3479 &class_device_attr_debug_level,
edb9068d
PS		 3480 NULL,
3481};
3482EXPORT_SYMBOL(mptscsih_host_attrs);
3483
0d0c7974
MED		 3484EXPORT_SYMBOL(mptscsih_remove);
3485EXPORT_SYMBOL(mptscsih_shutdown);
3486#ifdef CONFIG_PM
3487EXPORT_SYMBOL(mptscsih_suspend);
3488EXPORT_SYMBOL(mptscsih_resume);
3489#endif
3490EXPORT_SYMBOL(mptscsih_proc_info);
3491EXPORT_SYMBOL(mptscsih_info);
3492EXPORT_SYMBOL(mptscsih_qcmd);
0d0c7974
MED		 3493EXPORT_SYMBOL(mptscsih_slave_destroy);
3494EXPORT_SYMBOL(mptscsih_slave_configure);
3495EXPORT_SYMBOL(mptscsih_abort);
3496EXPORT_SYMBOL(mptscsih_dev_reset);
3497EXPORT_SYMBOL(mptscsih_bus_reset);
3498EXPORT_SYMBOL(mptscsih_host_reset);
3499EXPORT_SYMBOL(mptscsih_bios_param);
3500EXPORT_SYMBOL(mptscsih_io_done);
3501EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3502EXPORT_SYMBOL(mptscsih_scandv_complete);
3503EXPORT_SYMBOL(mptscsih_event_process);
3504EXPORT_SYMBOL(mptscsih_ioc_reset);
6e3815ba 3505EXPORT_SYMBOL(mptscsih_change_queue_depth);
0d0c7974 3506EXPORT_SYMBOL(mptscsih_timer_expired);
663e1aa1 3507EXPORT_SYMBOL(mptscsih_TMHandler);
1da177e4 3508
0d0c7974 3509/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
Linux 6.x block layer and io_uring tree(s)