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Merge branch 'topic/cs5535audio' into to-push
[mirror_ubuntu-jammy-kernel.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 *
cddc0ab7 6 * Copyright (c) 1999-2008 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
b80ca4f7 114#define SNS_LEN(scp) SCSI_SENSE_BUFFERSIZE
1da177e4 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) {
ed17b031 296 sg = sg_next(sg); /* Get next SG element from the OS */
1da177e4
LT		 297 sg_done++;
298 continue;
299 }
300
301 v2 = sg_dma_address(sg);
302 mptscsih_add_sge(psge, sgflags | thisxfer, v2);
303
ed17b031 304 sg = sg_next(sg); /* Get next SG element from the OS */
1da177e4
LT		 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 /*
ed17b031 325 sg = sg_next(sg);
1da177e4
LT		 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",
cadbd4a5 464 ioc->name,__func__));
786899b0
EM		 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{
4d4109d0
PS		 1173 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1174
1175 scsi_block_requests(ioc->sh);
1176 flush_scheduled_work();
d18c3db5 1177 mptscsih_shutdown(pdev);
0d0c7974 1178 return mpt_suspend(pdev,state);
1da177e4
LT		 1179}
1180
1181/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1182/*
1183 * mptscsih_resume - Fusion MPT scsi driver resume routine.
1184 *
1185 *
1186 */
0d0c7974 1187int
1da177e4
LT		 1188mptscsih_resume(struct pci_dev *pdev)
1189{
4d4109d0
PS		 1190 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
1191 int rc;
1192
1193 rc = mpt_resume(pdev);
1194 scsi_unblock_requests(ioc->sh);
1195 return rc;
1da177e4
LT		 1196}
1197
1198#endif
1199
1da177e4
LT		 1200/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1201/**
1202 * mptscsih_info - Return information about MPT adapter
1203 * @SChost: Pointer to Scsi_Host structure
1204 *
1205 * (linux scsi_host_template.info routine)
1206 *
1207 * Returns pointer to buffer where information was written.
1208 */
0d0c7974 1209const char *
1da177e4
LT		 1210mptscsih_info(struct Scsi_Host *SChost)
1211{
1212 MPT_SCSI_HOST *h;
1213 int size = 0;
1214
e7eae9f6 1215 h = shost_priv(SChost);
0d0c7974 1216
1da177e4 1217 if (h) {
0d0c7974
MED		 1218 if (h->info_kbuf == NULL)
1219 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1220 return h->info_kbuf;
1221 h->info_kbuf[0] = '\0';
1222
1223 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1224 h->info_kbuf[size-1] = '\0';
1da177e4
LT		 1225 }
1226
0d0c7974 1227 return h->info_kbuf;
1da177e4
LT		 1228}
1229
1230struct info_str {
1231 char *buffer;
1232 int length;
1233 int offset;
1234 int pos;
1235};
1236
0d0c7974
MED		 1237static void
1238mptscsih_copy_mem_info(struct info_str *info, char *data, int len)
1da177e4
LT		 1239{
1240 if (info->pos + len > info->length)
1241 len = info->length - info->pos;
1242
1243 if (info->pos + len < info->offset) {
1244 info->pos += len;
1245 return;
1246 }
1247
1248 if (info->pos < info->offset) {
1249 data += (info->offset - info->pos);
1250 len -= (info->offset - info->pos);
1251 }
1252
1253 if (len > 0) {
1254 memcpy(info->buffer + info->pos, data, len);
1255 info->pos += len;
1256 }
1257}
1258
0d0c7974
MED		 1259static int
1260mptscsih_copy_info(struct info_str *info, char *fmt, ...)
1da177e4
LT		 1261{
1262 va_list args;
1263 char buf[81];
1264 int len;
1265
1266 va_start(args, fmt);
1267 len = vsprintf(buf, fmt, args);
1268 va_end(args);
1269
0d0c7974 1270 mptscsih_copy_mem_info(info, buf, len);
1da177e4
LT		 1271 return len;
1272}
1273
0d0c7974
MED		 1274static int
1275mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len)
1da177e4
LT		 1276{
1277 struct info_str info;
1278
1279 info.buffer = pbuf;
1280 info.length = len;
1281 info.offset = offset;
1282 info.pos = 0;
1283
0d0c7974
MED		 1284 mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name);
1285 mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1286 mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts);
1287 mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth);
1da177e4
LT		 1288
1289 return ((info.pos > info.offset) ? info.pos - info.offset : 0);
1290}
1291
1292/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1293/**
1294 * mptscsih_proc_info - Return information about MPT adapter
d9489fb6
RD		 1295 * @host: scsi host struct
1296 * @buffer: if write, user data; if read, buffer for user
1297 * @start: returns the buffer address
1298 * @offset: if write, 0; if read, the current offset into the buffer from
1299 * the previous read.
1300 * @length: if write, return length;
1301 * @func: write = 1; read = 0
1da177e4
LT		 1302 *
1303 * (linux scsi_host_template.info routine)
1da177e4 1304 */
0d0c7974 1305int
1da177e4
LT		 1306mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
1307 int length, int func)
1308{
e7eae9f6 1309 MPT_SCSI_HOST *hd = shost_priv(host);
1da177e4
LT		 1310 MPT_ADAPTER *ioc = hd->ioc;
1311 int size = 0;
1312
1313 if (func) {
c6678e0c
CH		 1314 /*
1315 * write is not supported
1da177e4
LT		 1316 */
1317 } else {
1318 if (start)
1319 *start = buffer;
1320
1321 size = mptscsih_host_info(ioc, buffer, offset, length);
1322 }
1323
1324 return size;
1325}
1326
1327/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1328#define ADD_INDEX_LOG(req_ent) do { } while(0)
1329
1330/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1331/**
1332 * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1333 * @SCpnt: Pointer to scsi_cmnd structure
1334 * @done: Pointer SCSI mid-layer IO completion function
1335 *
1336 * (linux scsi_host_template.queuecommand routine)
1337 * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest
1338 * from a linux scsi_cmnd request and send it to the IOC.
1339 *
1340 * Returns 0. (rtn value discarded by linux scsi mid-layer)
1341 */
0d0c7974 1342int
1da177e4
LT		 1343mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1344{
1345 MPT_SCSI_HOST *hd;
1346 MPT_FRAME_HDR *mf;
1347 SCSIIORequest_t *pScsiReq;
a69de507 1348 VirtDevice *vdevice = SCpnt->device->hostdata;
1da177e4
LT		 1349 int lun;
1350 u32 datalen;
1351 u32 scsictl;
1352 u32 scsidir;
1353 u32 cmd_len;
1354 int my_idx;
1355 int ii;
6757d6b4 1356 MPT_ADAPTER *ioc;
1da177e4 1357
e7eae9f6 1358 hd = shost_priv(SCpnt->device->host);
6757d6b4 1359 ioc = hd->ioc;
1da177e4
LT		 1360 lun = SCpnt->device->lun;
1361 SCpnt->scsi_done = done;
1362
6757d6b4
PS		 1363 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
1364 ioc->name, SCpnt, done));
1da177e4
LT		 1365
1366 if (hd->resetPending) {
6757d6b4
PS		 1367 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT "qcmd: SCpnt=%p timeout + 60HZ\n",
1368 ioc->name, SCpnt));
1da177e4
LT		 1369 return SCSI_MLQUEUE_HOST_BUSY;
1370 }
1371
1372 /*
1373 * Put together a MPT SCSI request...
1374 */
e80b002b 1375 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
6757d6b4
PS		 1376 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1377 ioc->name));
1da177e4
LT		 1378 return SCSI_MLQUEUE_HOST_BUSY;
1379 }
1380
1381 pScsiReq = (SCSIIORequest_t *) mf;
1382
1383 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1384
1385 ADD_INDEX_LOG(my_idx);
1386
0d0c7974 1387 /* TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1da177e4
LT		 1388 * Seems we may receive a buffer (datalen>0) even when there
1389 * will be no data transfer! GRRRRR...
1390 */
1391 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1928d73f 1392 datalen = scsi_bufflen(SCpnt);
1da177e4
LT		 1393 scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */
1394 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1928d73f 1395 datalen = scsi_bufflen(SCpnt);
1da177e4
LT		 1396 scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */
1397 } else {
1398 datalen = 0;
1399 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1400 }
1401
1402 /* Default to untagged. Once a target structure has been allocated,
1403 * use the Inquiry data to determine if device supports tagged.
1404 */
a69de507
EM		 1405 if (vdevice
1406 && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1da177e4
LT		 1407 && (SCpnt->device->tagged_supported)) {
1408 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1409 } else {
1410 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1411 }
1412
1413 /* Use the above information to set up the message frame
1414 */
a69de507
EM		 1415 pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1416 pScsiReq->Bus = vdevice->vtarget->channel;
1da177e4 1417 pScsiReq->ChainOffset = 0;
a69de507 1418 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
c92f222e
JB		 1419 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1420 else
1421 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1da177e4
LT		 1422 pScsiReq->CDBLength = SCpnt->cmd_len;
1423 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1424 pScsiReq->Reserved = 0;
1425 pScsiReq->MsgFlags = mpt_msg_flags();
793955f5 1426 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1da177e4
LT		 1427 pScsiReq->Control = cpu_to_le32(scsictl);
1428
1429 /*
1430 * Write SCSI CDB into the message
1431 */
1432 cmd_len = SCpnt->cmd_len;
1433 for (ii=0; ii < cmd_len; ii++)
1434 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1435
1436 for (ii=cmd_len; ii < 16; ii++)
1437 pScsiReq->CDB[ii] = 0;
1438
1439 /* DataLength */
1440 pScsiReq->DataLength = cpu_to_le32(datalen);
1441
1442 /* SenseBuffer low address */
e80b002b 1443 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1da177e4
LT		 1444 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1445
1446 /* Now add the SG list
1447 * Always have a SGE even if null length.
1448 */
1449 if (datalen == 0) {
1450 /* Add a NULL SGE */
1451 mptscsih_add_sge((char *)&pScsiReq->SGL, MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1452 (dma_addr_t) -1);
1453 } else {
1454 /* Add a 32 or 64 bit SGE */
e80b002b 1455 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1da177e4
LT		 1456 goto fail;
1457 }
1458
3dc0b03f 1459 SCpnt->host_scribble = (unsigned char *)mf;
e8206381 1460 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1da177e4 1461
e80b002b 1462 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
6757d6b4
PS		 1463 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1464 ioc->name, SCpnt, mf, my_idx));
29dd3609 1465 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1da177e4
LT		 1466 return 0;
1467
1468 fail:
e80b002b
EM		 1469 mptscsih_freeChainBuffers(ioc, my_idx);
1470 mpt_free_msg_frame(ioc, mf);
1da177e4
LT		 1471 return SCSI_MLQUEUE_HOST_BUSY;
1472}
1473
1474/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1475/*
1476 * mptscsih_freeChainBuffers - Function to free chain buffers associated
1477 * with a SCSI IO request
1478 * @hd: Pointer to the MPT_SCSI_HOST instance
1479 * @req_idx: Index of the SCSI IO request frame.
1480 *
1481 * Called if SG chain buffer allocation fails and mptscsih callbacks.
1482 * No return.
1483 */
1484static void
1485mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1486{
1487 MPT_FRAME_HDR *chain;
1488 unsigned long flags;
1489 int chain_idx;
1490 int next;
1491
1492 /* Get the first chain index and reset
1493 * tracker state.
1494 */
1495 chain_idx = ioc->ReqToChain[req_idx];
1496 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1497
1498 while (chain_idx != MPT_HOST_NO_CHAIN) {
1499
1500 /* Save the next chain buffer index */
1501 next = ioc->ChainToChain[chain_idx];
1502
1503 /* Free this chain buffer and reset
1504 * tracker
1505 */
1506 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1507
1508 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1509 + (chain_idx * ioc->req_sz));
1510
1511 spin_lock_irqsave(&ioc->FreeQlock, flags);
1512 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1513 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1514
6757d6b4 1515 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1da177e4
LT		 1516 ioc->name, chain_idx));
1517
1518 /* handle next */
1519 chain_idx = next;
1520 }
1521 return;
1522}
1523
1524/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1525/*
1526 * Reset Handling
1527 */
1528
1529/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
cd2c6191 1530/**
1da177e4 1531 * mptscsih_TMHandler - Generic handler for SCSI Task Management.
1544d677 1532 * @hd: Pointer to MPT SCSI HOST structure
1da177e4 1533 * @type: Task Management type
1544d677 1534 * @channel: channel number for task management
793955f5 1535 * @id: Logical Target ID for reset (if appropriate)
1da177e4
LT		 1536 * @lun: Logical Unit for reset (if appropriate)
1537 * @ctx2abort: Context for the task to be aborted (if appropriate)
1544d677
RD		 1538 * @timeout: timeout for task management control
1539 *
1540 * Fall through to mpt_HardResetHandler if: not operational, too many
1541 * failed TM requests or handshake failure.
1da177e4
LT		 1542 *
1543 * Remark: Currently invoked from a non-interrupt thread (_bh).
1544 *
7105a387 1545 * Note: With old EH code, at most 1 SCSI TaskMgmt function per IOC
1da177e4
LT		 1546 * will be active.
1547 *
1544d677 1548 * Returns 0 for SUCCESS, or %FAILED.
cd2c6191 1549 **/
663e1aa1 1550int
793955f5 1551mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1da177e4
LT		 1552{
1553 MPT_ADAPTER *ioc;
1554 int rc = -1;
1da177e4
LT		 1555 u32 ioc_raw_state;
1556 unsigned long flags;
1557
1da177e4 1558 ioc = hd->ioc;
6757d6b4 1559 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler Entered!\n", ioc->name));
1da177e4
LT		 1560
1561 // SJR - CHECKME - Can we avoid this here?
1562 // (mpt_HardResetHandler has this check...)
1563 spin_lock_irqsave(&ioc->diagLock, flags);
1564 if ((ioc->diagPending) || (ioc->alt_ioc && ioc->alt_ioc->diagPending)) {
1565 spin_unlock_irqrestore(&ioc->diagLock, flags);
1566 return FAILED;
1567 }
1568 spin_unlock_irqrestore(&ioc->diagLock, flags);
1569
1570 /* Wait a fixed amount of time for the TM pending flag to be cleared.
cd2c6191
EM		 1571 * If we time out and not bus reset, then we return a FAILED status
1572 * to the caller.
1573 * The call to mptscsih_tm_pending_wait() will set the pending flag
1574 * if we are
1da177e4
LT		 1575 * successful. Otherwise, reload the FW.
1576 */
1577 if (mptscsih_tm_pending_wait(hd) == FAILED) {
1578 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
29dd3609 1579 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler abort: "
1da177e4 1580 "Timed out waiting for last TM (%d) to complete! \n",
6757d6b4 1581 ioc->name, hd->tmPending));
1da177e4
LT		 1582 return FAILED;
1583 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET) {
29dd3609 1584 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler target "
cd2c6191 1585 "reset: Timed out waiting for last TM (%d) "
6757d6b4 1586 "to complete! \n", ioc->name,
cd2c6191 1587 hd->tmPending));
1da177e4
LT		 1588 return FAILED;
1589 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) {
29dd3609 1590 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler bus reset: "
1da177e4 1591 "Timed out waiting for last TM (%d) to complete! \n",
6757d6b4 1592 ioc->name, hd->tmPending));
cd2c6191 1593 return FAILED;
1da177e4
LT		 1594 }
1595 } else {
e80b002b 1596 spin_lock_irqsave(&ioc->FreeQlock, flags);
1da177e4 1597 hd->tmPending |= (1 << type);
e80b002b 1598 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1da177e4
LT		 1599 }
1600
e80b002b 1601 ioc_raw_state = mpt_GetIocState(ioc, 0);
1da177e4 1602
1da177e4
LT		 1603 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1604 printk(MYIOC_s_WARN_FMT
cd2c6191
EM		 1605 "TM Handler for type=%x: IOC Not operational (0x%x)!\n",
1606 ioc->name, type, ioc_raw_state);
29dd3609 1607 printk(MYIOC_s_WARN_FMT " Issuing HardReset!!\n", ioc->name);
cd2c6191 1608 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
29dd3609
EM		 1609 printk(MYIOC_s_WARN_FMT "TMHandler: HardReset "
1610 "FAILED!!\n", ioc->name);
cd2c6191 1611 return FAILED;
1da177e4
LT		 1612 }
1613
cd2c6191
EM		 1614 if (ioc_raw_state & MPI_DOORBELL_ACTIVE) {
1615 printk(MYIOC_s_WARN_FMT
1616 "TM Handler for type=%x: ioc_state: "
1617 "DOORBELL_ACTIVE (0x%x)!\n",
1618 ioc->name, type, ioc_raw_state);
1619 return FAILED;
1da177e4
LT		 1620 }
1621
cd2c6191 1622 /* Isse the Task Mgmt request.
3dc0b03f 1623 */
cd2c6191
EM		 1624 if (hd->hard_resets < -1)
1625 hd->hard_resets++;
1626
1627 rc = mptscsih_IssueTaskMgmt(hd, type, channel, id, lun,
1628 ctx2abort, timeout);
1629 if (rc)
1630 printk(MYIOC_s_INFO_FMT "Issue of TaskMgmt failed!\n",
6757d6b4 1631 ioc->name);
cd2c6191 1632 else
6757d6b4
PS		 1633 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issue of TaskMgmt Successful!\n",
1634 ioc->name));
3dc0b03f 1635
6757d6b4
PS		 1636 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1637 "TMHandler rc = %d!\n", ioc->name, rc));
1da177e4
LT		 1638
1639 return rc;
1640}
1641
1642
1643/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
cd2c6191 1644/**
1da177e4
LT		 1645 * mptscsih_IssueTaskMgmt - Generic send Task Management function.
1646 * @hd: Pointer to MPT_SCSI_HOST structure
1647 * @type: Task Management type
1544d677 1648 * @channel: channel number for task management
793955f5 1649 * @id: Logical Target ID for reset (if appropriate)
1da177e4
LT		 1650 * @lun: Logical Unit for reset (if appropriate)
1651 * @ctx2abort: Context for the task to be aborted (if appropriate)
1544d677 1652 * @timeout: timeout for task management control
1da177e4
LT		 1653 *
1654 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1655 * or a non-interrupt thread. In the former, must not call schedule().
1656 *
1657 * Not all fields are meaningfull for all task types.
1658 *
cd2c6191
EM		 1659 * Returns 0 for SUCCESS, or FAILED.
1660 *
1661 **/
1da177e4 1662static int
793955f5 1663mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1da177e4
LT		 1664{
1665 MPT_FRAME_HDR *mf;
1666 SCSITaskMgmt_t *pScsiTm;
1667 int ii;
1668 int retval;
e80b002b 1669 MPT_ADAPTER *ioc = hd->ioc;
1da177e4
LT		 1670
1671 /* Return Fail to calling function if no message frames available.
1672 */
e80b002b
EM		 1673 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1674 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "IssueTaskMgmt, no msg frames!!\n",
1675 ioc->name));
c6678e0c 1676 return FAILED;
1da177e4 1677 }
e80b002b
EM		 1678 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "IssueTaskMgmt request @ %p\n",
1679 ioc->name, mf));
1da177e4
LT		 1680
1681 /* Format the Request
1682 */
1683 pScsiTm = (SCSITaskMgmt_t *) mf;
793955f5 1684 pScsiTm->TargetID = id;
1da177e4
LT		 1685 pScsiTm->Bus = channel;
1686 pScsiTm->ChainOffset = 0;
1687 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1688
1689 pScsiTm->Reserved = 0;
1690 pScsiTm->TaskType = type;
1691 pScsiTm->Reserved1 = 0;
1692 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1693 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1694
793955f5 1695 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1da177e4
LT		 1696
1697 for (ii=0; ii < 7; ii++)
1698 pScsiTm->Reserved2[ii] = 0;
1699
1700 pScsiTm->TaskMsgContext = ctx2abort;
1701
e80b002b
EM		 1702 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "IssueTaskMgmt: ctx2abort (0x%08x) "
1703 "type=%d\n", ioc->name, ctx2abort, type));
1da177e4 1704
6757d6b4 1705 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1da177e4 1706
e80b002b
EM		 1707 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1708 (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1709 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
7a195f46 1710 else {
e80b002b 1711 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
7a195f46
PS		 1712 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1713 if (retval) {
e80b002b
EM		 1714 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "send_handshake FAILED!"
1715 " (hd %p, ioc %p, mf %p, rc=%d) \n", ioc->name, hd,
1716 ioc, mf, retval));
7a195f46
PS		 1717 goto fail_out;
1718 }
1da177e4
LT		 1719 }
1720
1721 if(mptscsih_tm_wait_for_completion(hd, timeout) == FAILED) {
e80b002b
EM		 1722 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "task management request TIMED OUT!"
1723 " (hd %p, ioc %p, mf %p) \n", ioc->name, hd,
1724 ioc, mf));
1725 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Calling HardReset! \n",
1726 ioc->name));
1727 retval = mpt_HardResetHandler(ioc, CAN_SLEEP);
1728 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rc=%d \n",
1729 ioc->name, retval));
cd2c6191 1730 goto fail_out;
1da177e4
LT		 1731 }
1732
cd2c6191
EM		 1733 /*
1734 * Handle success case, see if theres a non-zero ioc_status.
1735 */
1736 if (hd->tm_iocstatus == MPI_IOCSTATUS_SUCCESS ||
1737 hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
1738 hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
1739 retval = 0;
1740 else
1741 retval = FAILED;
1742
1da177e4 1743 return retval;
cd2c6191
EM		 1744
1745 fail_out:
1746
1747 /*
fc1323bb 1748 * Free task management mf, and corresponding tm flags
cd2c6191 1749 */
e80b002b 1750 mpt_free_msg_frame(ioc, mf);
cd2c6191
EM		 1751 hd->tmPending = 0;
1752 hd->tmState = TM_STATE_NONE;
1753 return FAILED;
1da177e4
LT		 1754}
1755
d66c7a0f
CH		 1756static int
1757mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1758{
1759 switch (ioc->bus_type) {
1760 case FC:
1761 return 40;
1762 case SAS:
d66c7a0f
CH		 1763 case SPI:
1764 default:
22ab019b 1765 return 10;
d66c7a0f
CH		 1766 }
1767}
1768
1da177e4
LT		 1769/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1770/**
1771 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1772 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1773 *
1774 * (linux scsi_host_template.eh_abort_handler routine)
1775 *
1776 * Returns SUCCESS or FAILED.
cd2c6191 1777 **/
0d0c7974 1778int
1da177e4
LT		 1779mptscsih_abort(struct scsi_cmnd * SCpnt)
1780{
1781 MPT_SCSI_HOST *hd;
1da177e4
LT		 1782 MPT_FRAME_HDR *mf;
1783 u32 ctx2abort;
1784 int scpnt_idx;
466544d8 1785 int retval;
958d4a32 1786 VirtDevice *vdevice;
3dc0b03f 1787 ulong sn = SCpnt->serial_number;
958d4a32 1788 MPT_ADAPTER *ioc;
1da177e4
LT		 1789
1790 /* If we can't locate our host adapter structure, return FAILED status.
1791 */
e7eae9f6 1792 if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1da177e4
LT		 1793 SCpnt->result = DID_RESET << 16;
1794 SCpnt->scsi_done(SCpnt);
29dd3609
EM		 1795 printk(KERN_ERR MYNAM ": task abort: "
1796 "can't locate host! (sc=%p)\n", SCpnt);
1da177e4
LT		 1797 return FAILED;
1798 }
1799
958d4a32
EM		 1800 ioc = hd->ioc;
1801 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1802 ioc->name, SCpnt);
1803 scsi_print_command(SCpnt);
1804
1805 vdevice = SCpnt->device->hostdata;
1806 if (!vdevice || !vdevice->vtarget) {
29dd3609
EM		 1807 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1808 "task abort: device has been deleted (sc=%p)\n",
1809 ioc->name, SCpnt));
958d4a32
EM		 1810 SCpnt->result = DID_NO_CONNECT << 16;
1811 SCpnt->scsi_done(SCpnt);
1812 retval = 0;
1813 goto out;
1814 }
1815
cc78d30a
EM		 1816 /* Task aborts are not supported for hidden raid components.
1817 */
1818 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
29dd3609
EM		 1819 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1820 "task abort: hidden raid component (sc=%p)\n",
1821 ioc->name, SCpnt));
cc78d30a
EM		 1822 SCpnt->result = DID_RESET << 16;
1823 retval = FAILED;
1824 goto out;
1825 }
1826
1da177e4
LT		 1827 /* Find this command
1828 */
e8206381 1829 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
466544d8 1830 /* Cmd not found in ScsiLookup.
1da177e4
LT		 1831 * Do OS callback.
1832 */
1833 SCpnt->result = DID_RESET << 16;
29dd3609 1834 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
958d4a32
EM		 1835 "Command not in the active list! (sc=%p)\n", ioc->name,
1836 SCpnt));
1837 retval = 0;
1838 goto out;
1da177e4
LT		 1839 }
1840
958d4a32
EM		 1841 if (hd->resetPending) {
1842 retval = FAILED;
1843 goto out;
1844 }
65207fed
ME		 1845
1846 if (hd->timeouts < -1)
1847 hd->timeouts++;
1848
1da177e4
LT		 1849 /* Most important! Set TaskMsgContext to SCpnt's MsgContext!
1850 * (the IO to be ABORT'd)
1851 *
1852 * NOTE: Since we do not byteswap MsgContext, we do not
1853 * swap it here either. It is an opaque cookie to
1854 * the controller, so it does not matter. -DaveM
1855 */
e80b002b 1856 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1da177e4
LT		 1857 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1858
1859 hd->abortSCpnt = SCpnt;
1860
466544d8 1861 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
958d4a32
EM		 1862 vdevice->vtarget->channel, vdevice->vtarget->id, vdevice->lun,
1863 ctx2abort, mptscsih_get_tm_timeout(ioc));
1da177e4 1864
e8206381 1865 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx &&
cd2c6191 1866 SCpnt->serial_number == sn)
3dc0b03f 1867 retval = FAILED;
3dc0b03f 1868
958d4a32
EM		 1869 out:
1870 printk(MYIOC_s_INFO_FMT "task abort: %s (sc=%p)\n",
1871 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1da177e4 1872
466544d8
MED		 1873 if (retval == 0)
1874 return SUCCESS;
cd2c6191
EM		 1875 else
1876 return FAILED;
1da177e4
LT		 1877}
1878
1879/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1880/**
1881 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant
1882 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1883 *
1884 * (linux scsi_host_template.eh_dev_reset_handler routine)
1885 *
1886 * Returns SUCCESS or FAILED.
cd2c6191 1887 **/
0d0c7974 1888int
1da177e4
LT		 1889mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1890{
1891 MPT_SCSI_HOST *hd;
466544d8 1892 int retval;
958d4a32
EM		 1893 VirtDevice *vdevice;
1894 MPT_ADAPTER *ioc;
1da177e4
LT		 1895
1896 /* If we can't locate our host adapter structure, return FAILED status.
1897 */
e7eae9f6 1898 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
29dd3609
EM		 1899 printk(KERN_ERR MYNAM ": target reset: "
1900 "Can't locate host! (sc=%p)\n", SCpnt);
1da177e4
LT		 1901 return FAILED;
1902 }
1903
958d4a32
EM		 1904 ioc = hd->ioc;
1905 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1906 ioc->name, SCpnt);
466544d8 1907 scsi_print_command(SCpnt);
1da177e4 1908
958d4a32
EM		 1909 if (hd->resetPending) {
1910 retval = FAILED;
1911 goto out;
1912 }
1913
1914 vdevice = SCpnt->device->hostdata;
1915 if (!vdevice || !vdevice->vtarget) {
1916 retval = 0;
1917 goto out;
1918 }
1919
cc78d30a
EM		 1920 /* Target reset to hidden raid component is not supported
1921 */
1922 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1923 retval = FAILED;
1924 goto out;
1925 }
1926
466544d8 1927 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
958d4a32
EM		 1928 vdevice->vtarget->channel, vdevice->vtarget->id, 0, 0,
1929 mptscsih_get_tm_timeout(ioc));
466544d8 1930
958d4a32
EM		 1931 out:
1932 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1933 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
466544d8
MED		 1934
1935 if (retval == 0)
1936 return SUCCESS;
cd2c6191
EM		 1937 else
1938 return FAILED;
1da177e4
LT		 1939}
1940
cd2c6191 1941
1da177e4
LT		 1942/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1943/**
1944 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant
1945 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1946 *
1947 * (linux scsi_host_template.eh_bus_reset_handler routine)
1948 *
1949 * Returns SUCCESS or FAILED.
cd2c6191 1950 **/
0d0c7974 1951int
1da177e4
LT		 1952mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1953{
1954 MPT_SCSI_HOST *hd;
466544d8 1955 int retval;
a69de507 1956 VirtDevice *vdevice;
958d4a32 1957 MPT_ADAPTER *ioc;
1da177e4
LT		 1958
1959 /* If we can't locate our host adapter structure, return FAILED status.
1960 */
e7eae9f6 1961 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
29dd3609
EM		 1962 printk(KERN_ERR MYNAM ": bus reset: "
1963 "Can't locate host! (sc=%p)\n", SCpnt);
1da177e4
LT		 1964 return FAILED;
1965 }
1966
958d4a32
EM		 1967 ioc = hd->ioc;
1968 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1969 ioc->name, SCpnt);
466544d8 1970 scsi_print_command(SCpnt);
1da177e4
LT		 1971
1972 if (hd->timeouts < -1)
1973 hd->timeouts++;
1974
a69de507 1975 vdevice = SCpnt->device->hostdata;
466544d8 1976 retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
a69de507 1977 vdevice->vtarget->channel, 0, 0, 0, mptscsih_get_tm_timeout(ioc));
1da177e4 1978
958d4a32
EM		 1979 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1980 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
466544d8
MED		 1981
1982 if (retval == 0)
1983 return SUCCESS;
cd2c6191
EM		 1984 else
1985 return FAILED;
1da177e4
LT		 1986}
1987
1988/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1989/**
d9489fb6 1990 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1da177e4
LT		 1991 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1992 *
1993 * (linux scsi_host_template.eh_host_reset_handler routine)
1994 *
1995 * Returns SUCCESS or FAILED.
1996 */
0d0c7974 1997int
1da177e4
LT		 1998mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1999{
2000 MPT_SCSI_HOST * hd;
958d4a32
EM		 2001 int retval;
2002 MPT_ADAPTER *ioc;
1da177e4
LT		 2003
2004 /* If we can't locate the host to reset, then we failed. */
e7eae9f6 2005 if ((hd = shost_priv(SCpnt->device->host)) == NULL){
29dd3609
EM		 2006 printk(KERN_ERR MYNAM ": host reset: "
2007 "Can't locate host! (sc=%p)\n", SCpnt);
1da177e4
LT		 2008 return FAILED;
2009 }
2010
a6da74cb
JB		 2011 /* make sure we have no outstanding commands at this stage */
2012 mptscsih_flush_running_cmds(hd);
2013
958d4a32
EM		 2014 ioc = hd->ioc;
2015 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
2016 ioc->name, SCpnt);
1da177e4
LT		 2017
2018 /* If our attempts to reset the host failed, then return a failed
2019 * status. The host will be taken off line by the SCSI mid-layer.
2020 */
e80b002b 2021 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0) {
958d4a32 2022 retval = FAILED;
1da177e4
LT		 2023 } else {
2024 /* Make sure TM pending is cleared and TM state is set to
2025 * NONE.
2026 */
958d4a32 2027 retval = 0;
1da177e4
LT		 2028 hd->tmPending = 0;
2029 hd->tmState = TM_STATE_NONE;
2030 }
1da177e4 2031
958d4a32
EM		 2032 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
2033 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1da177e4 2034
958d4a32 2035 return retval;
1da177e4
LT		 2036}
2037
2038/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2039/**
d9489fb6 2040 * mptscsih_tm_pending_wait - wait for pending task management request to complete
1da177e4
LT		 2041 * @hd: Pointer to MPT host structure.
2042 *
2043 * Returns {SUCCESS,FAILED}.
2044 */
2045static int
2046mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd)
2047{
2048 unsigned long flags;
2049 int loop_count = 4 * 10; /* Wait 10 seconds */
2050 int status = FAILED;
e80b002b 2051 MPT_ADAPTER *ioc = hd->ioc;
1da177e4
LT		 2052
2053 do {
e80b002b 2054 spin_lock_irqsave(&ioc->FreeQlock, flags);
1da177e4
LT		 2055 if (hd->tmState == TM_STATE_NONE) {
2056 hd->tmState = TM_STATE_IN_PROGRESS;
2057 hd->tmPending = 1;
e80b002b 2058 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
c6678e0c 2059 status = SUCCESS;
1da177e4
LT		 2060 break;
2061 }
e80b002b 2062 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1da177e4
LT		 2063 msleep(250);
2064 } while (--loop_count);
2065
2066 return status;
2067}
2068
2069/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2070/**
2071 * mptscsih_tm_wait_for_completion - wait for completion of TM task
2072 * @hd: Pointer to MPT host structure.
1544d677 2073 * @timeout: timeout value
1da177e4
LT		 2074 *
2075 * Returns {SUCCESS,FAILED}.
2076 */
2077static int
2078mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout )
2079{
2080 unsigned long flags;
2081 int loop_count = 4 * timeout;
2082 int status = FAILED;
e80b002b 2083 MPT_ADAPTER *ioc = hd->ioc;
1da177e4
LT		 2084
2085 do {
e80b002b 2086 spin_lock_irqsave(&ioc->FreeQlock, flags);
1da177e4
LT		 2087 if(hd->tmPending == 0) {
2088 status = SUCCESS;
e80b002b 2089 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1da177e4
LT		 2090 break;
2091 }
e80b002b 2092 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
d6be06c8 2093 msleep(250);
1da177e4
LT		 2094 } while (--loop_count);
2095
2096 return status;
2097}
2098
9f63bb73
ME		 2099/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2100static void
2101mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2102{
2103 char *desc;
2104
2105 switch (response_code) {
2106 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2107 desc = "The task completed.";
2108 break;
2109 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2110 desc = "The IOC received an invalid frame status.";
2111 break;
2112 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2113 desc = "The task type is not supported.";
2114 break;
2115 case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2116 desc = "The requested task failed.";
2117 break;
2118 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2119 desc = "The task completed successfully.";
2120 break;
2121 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2122 desc = "The LUN request is invalid.";
2123 break;
2124 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2125 desc = "The task is in the IOC queue and has not been sent to target.";
2126 break;
2127 default:
2128 desc = "unknown";
2129 break;
2130 }
2131 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2132 ioc->name, response_code, desc);
2133}
2134
1da177e4
LT		 2135/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2136/**
2137 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2138 * @ioc: Pointer to MPT_ADAPTER structure
2139 * @mf: Pointer to SCSI task mgmt request frame
2140 * @mr: Pointer to SCSI task mgmt reply frame
2141 *
2142 * This routine is called from mptbase.c::mpt_interrupt() at the completion
2143 * of any SCSI task management request.
2144 * This routine is registered with the MPT (base) driver at driver
2145 * load/init time via the mpt_register() API call.
2146 *
2147 * Returns 1 indicating alloc'd request frame ptr should be freed.
cd2c6191 2148 **/
0d0c7974 2149int
1da177e4
LT		 2150mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2151{
2152 SCSITaskMgmtReply_t *pScsiTmReply;
2153 SCSITaskMgmt_t *pScsiTmReq;
2154 MPT_SCSI_HOST *hd;
2155 unsigned long flags;
2156 u16 iocstatus;
2157 u8 tmType;
cd2c6191 2158 u32 termination_count;
1da177e4 2159
6757d6b4 2160 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt completed (mf=%p,mr=%p)\n",
cd2c6191
EM		 2161 ioc->name, mf, mr));
2162 if (!ioc->sh) {
6757d6b4 2163 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
cd2c6191 2164 "TaskMgmt Complete: NULL Scsi Host Ptr\n", ioc->name));
1da177e4
LT		 2165 return 1;
2166 }
2167
2168 if (mr == NULL) {
6757d6b4 2169 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
cd2c6191 2170 "ERROR! TaskMgmt Reply: NULL Request %p\n", ioc->name, mf));
1da177e4 2171 return 1;
cd2c6191 2172 }
1da177e4 2173
e7eae9f6 2174 hd = shost_priv(ioc->sh);
cd2c6191
EM		 2175 pScsiTmReply = (SCSITaskMgmtReply_t*)mr;
2176 pScsiTmReq = (SCSITaskMgmt_t*)mf;
2177 tmType = pScsiTmReq->TaskType;
2178 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2179 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
2180
2181 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
2182 pScsiTmReply->ResponseCode)
2183 mptscsih_taskmgmt_response_code(ioc,
2184 pScsiTmReply->ResponseCode);
6757d6b4
PS		 2185 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
2186
2187#ifdef CONFIG_FUSION_LOGGING
2188 if ((ioc->debug_level & MPT_DEBUG_REPLY) ||
2189 (ioc->debug_level & MPT_DEBUG_TM ))
2190 printk("%s: ha=%d [%d:%d:0] task_type=0x%02X "
2191 "iocstatus=0x%04X\n\tloginfo=0x%08X response_code=0x%02X "
cadbd4a5 2192 "term_cmnds=%d\n", __func__, ioc->id, pScsiTmReply->Bus,
6757d6b4
PS		 2193 pScsiTmReply->TargetID, pScsiTmReq->TaskType,
2194 le16_to_cpu(pScsiTmReply->IOCStatus),
2195 le32_to_cpu(pScsiTmReply->IOCLogInfo),pScsiTmReply->ResponseCode,
2196 le32_to_cpu(pScsiTmReply->TerminationCount));
cd2c6191
EM		 2197#endif
2198 if (!iocstatus) {
6757d6b4 2199 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT " TaskMgmt SUCCESS\n", ioc->name));
cd2c6191
EM		 2200 hd->abortSCpnt = NULL;
2201 goto out;
2202 }
1da177e4 2203
cd2c6191 2204 /* Error? (anything non-zero?) */
9f63bb73 2205
cd2c6191
EM		 2206 /* clear flags and continue.
2207 */
2208 switch (tmType) {
1da177e4 2209
cd2c6191
EM		 2210 case MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2211 if (termination_count == 1)
2212 iocstatus = MPI_IOCSTATUS_SCSI_TASK_TERMINATED;
2213 hd->abortSCpnt = NULL;
2214 break;
1da177e4 2215
cd2c6191 2216 case MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS:
1da177e4 2217
cd2c6191
EM		 2218 /* If an internal command is present
2219 * or the TM failed - reload the FW.
2220 * FC FW may respond FAILED to an ABORT
2221 */
2222 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED ||
2223 hd->cmdPtr)
2224 if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0)
29dd3609 2225 printk(MYIOC_s_WARN_FMT " Firmware Reload FAILED!!\n", ioc->name);
cd2c6191 2226 break;
1da177e4 2227
cd2c6191
EM		 2228 case MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2229 default:
2230 break;
1da177e4
LT		 2231 }
2232
cd2c6191 2233 out:
1da177e4
LT		 2234 spin_lock_irqsave(&ioc->FreeQlock, flags);
2235 hd->tmPending = 0;
1da177e4 2236 hd->tmState = TM_STATE_NONE;
cd2c6191
EM		 2237 hd->tm_iocstatus = iocstatus;
2238 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1da177e4
LT		 2239
2240 return 1;
2241}
2242
2243/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2244/*
2245 * This is anyones guess quite frankly.
2246 */
0d0c7974 2247int
1da177e4
LT		 2248mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2249 sector_t capacity, int geom[])
2250{
2251 int heads;
2252 int sectors;
2253 sector_t cylinders;
2254 ulong dummy;
2255
2256 heads = 64;
2257 sectors = 32;
2258
2259 dummy = heads * sectors;
2260 cylinders = capacity;
2261 sector_div(cylinders,dummy);
2262
2263 /*
2264 * Handle extended translation size for logical drives
2265 * > 1Gb
2266 */
2267 if ((ulong)capacity >= 0x200000) {
2268 heads = 255;
2269 sectors = 63;
2270 dummy = heads * sectors;
2271 cylinders = capacity;
2272 sector_div(cylinders,dummy);
2273 }
2274
2275 /* return result */
2276 geom[0] = heads;
2277 geom[1] = sectors;
2278 geom[2] = cylinders;
2279
1da177e4
LT		 2280 return 0;
2281}
2282
f44e5461
ME		 2283/* Search IOC page 3 to determine if this is hidden physical disk
2284 *
2285 */
2286int
793955f5 2287mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
f44e5461 2288{
b506ade9 2289 struct inactive_raid_component_info *component_info;
f44e5461 2290 int i;
793955f5 2291 int rc = 0;
f44e5461 2292
793955f5
EM		 2293 if (!ioc->raid_data.pIocPg3)
2294 goto out;
f44e5461 2295 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
793955f5
EM		 2296 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2297 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2298 rc = 1;
2299 goto out;
2300 }
c92f222e
JB		 2301 }
2302
b506ade9
EM		 2303 /*
2304 * Check inactive list for matching phys disks
2305 */
2306 if (list_empty(&ioc->raid_data.inactive_list))
2307 goto out;
2308
ed5f606f 2309 mutex_lock(&ioc->raid_data.inactive_list_mutex);
b506ade9
EM		 2310 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2311 list) {
2312 if ((component_info->d.PhysDiskID == id) &&
2313 (component_info->d.PhysDiskBus == channel))
2314 rc = 1;
2315 }
ed5f606f 2316 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
b506ade9 2317
793955f5
EM		 2318 out:
2319 return rc;
c7c82987 2320}
793955f5 2321EXPORT_SYMBOL(mptscsih_is_phys_disk);
c7c82987 2322
793955f5
EM		 2323u8
2324mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
1da177e4 2325{
b506ade9 2326 struct inactive_raid_component_info *component_info;
793955f5
EM		 2327 int i;
2328 int rc = -ENXIO;
c92f222e 2329
793955f5
EM		 2330 if (!ioc->raid_data.pIocPg3)
2331 goto out;
2332 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2333 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2334 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2335 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2336 goto out;
1da177e4 2337 }
1da177e4 2338 }
1da177e4 2339
b506ade9
EM		 2340 /*
2341 * Check inactive list for matching phys disks
2342 */
2343 if (list_empty(&ioc->raid_data.inactive_list))
2344 goto out;
2345
ed5f606f 2346 mutex_lock(&ioc->raid_data.inactive_list_mutex);
b506ade9
EM		 2347 list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2348 list) {
2349 if ((component_info->d.PhysDiskID == id) &&
2350 (component_info->d.PhysDiskBus == channel))
2351 rc = component_info->d.PhysDiskNum;
2352 }
ed5f606f 2353 mutex_unlock(&ioc->raid_data.inactive_list_mutex);
b506ade9 2354
793955f5
EM		 2355 out:
2356 return rc;
c7c82987 2357}
793955f5 2358EXPORT_SYMBOL(mptscsih_raid_id_to_num);
1da177e4 2359
c7c82987
MED		 2360/*
2361 * OS entry point to allow for host driver to free allocated memory
2362 * Called if no device present or device being unloaded
2363 */
2364void
2365mptscsih_slave_destroy(struct scsi_device *sdev)
2366{
2367 struct Scsi_Host *host = sdev->host;
e7eae9f6 2368 MPT_SCSI_HOST *hd = shost_priv(host);
c7c82987
MED		 2369 VirtTarget *vtarget;
2370 VirtDevice *vdevice;
2371 struct scsi_target *starget;
2372
2373 starget = scsi_target(sdev);
2374 vtarget = starget->hostdata;
2375 vdevice = sdev->hostdata;
2376
2377 mptscsih_search_running_cmds(hd, vdevice);
c7c82987 2378 vtarget->num_luns--;
c7c82987
MED		 2379 mptscsih_synchronize_cache(hd, vdevice);
2380 kfree(vdevice);
2381 sdev->hostdata = NULL;
1da177e4
LT		 2382}
2383
6e3815ba
MED		 2384/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2385/*
2386 * mptscsih_change_queue_depth - This function will set a devices queue depth
2387 * @sdev: per scsi_device pointer
2388 * @qdepth: requested queue depth
2389 *
2390 * Adding support for new 'change_queue_depth' api.
2391*/
2392int
2393mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
1da177e4 2394{
e7eae9f6 2395 MPT_SCSI_HOST *hd = shost_priv(sdev->host);
c7c82987
MED		 2396 VirtTarget *vtarget;
2397 struct scsi_target *starget;
2398 int max_depth;
2399 int tagged;
e80b002b 2400 MPT_ADAPTER *ioc = hd->ioc;
1da177e4 2401
c7c82987
MED		 2402 starget = scsi_target(sdev);
2403 vtarget = starget->hostdata;
6e3815ba 2404
e80b002b 2405 if (ioc->bus_type == SPI) {
c92f222e 2406 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
1da177e4 2407 max_depth = 1;
c92f222e
JB		 2408 else if (sdev->type == TYPE_DISK &&
2409 vtarget->minSyncFactor <= MPT_ULTRA160)
2410 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2411 else
2412 max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
1da177e4
LT		 2413 } else
2414 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2415
2416 if (qdepth > max_depth)
2417 qdepth = max_depth;
2418 if (qdepth == 1)
2419 tagged = 0;
2420 else
2421 tagged = MSG_SIMPLE_TAG;
2422
6e3815ba
MED		 2423 scsi_adjust_queue_depth(sdev, tagged, qdepth);
2424 return sdev->queue_depth;
1da177e4
LT		 2425}
2426
1da177e4
LT		 2427/*
2428 * OS entry point to adjust the queue_depths on a per-device basis.
2429 * Called once per device the bus scan. Use it to force the queue_depth
2430 * member to 1 if a device does not support Q tags.
2431 * Return non-zero if fails.
2432 */
0d0c7974 2433int
c7c82987 2434mptscsih_slave_configure(struct scsi_device *sdev)
1da177e4 2435{
c7c82987
MED		 2436 struct Scsi_Host *sh = sdev->host;
2437 VirtTarget *vtarget;
2438 VirtDevice *vdevice;
2439 struct scsi_target *starget;
e7eae9f6 2440 MPT_SCSI_HOST *hd = shost_priv(sh);
e80b002b 2441 MPT_ADAPTER *ioc = hd->ioc;
1da177e4 2442
c7c82987
MED		 2443 starget = scsi_target(sdev);
2444 vtarget = starget->hostdata;
2445 vdevice = sdev->hostdata;
1da177e4 2446
e80b002b 2447 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
793955f5 2448 "device @ %p, channel=%d, id=%d, lun=%d\n",
e80b002b
EM		 2449 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2450 if (ioc->bus_type == SPI)
2451 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
c7c82987 2452 "sdtr %d wdtr %d ppr %d inq length=%d\n",
e80b002b 2453 ioc->name, sdev->sdtr, sdev->wdtr,
c7c82987
MED		 2454 sdev->ppr, sdev->inquiry_len));
2455
793955f5 2456 vdevice->configured_lun = 1;
c7c82987 2457 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
1da177e4 2458
e80b002b 2459 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1da177e4 2460 "Queue depth=%d, tflags=%x\n",
e80b002b 2461 ioc->name, sdev->queue_depth, vtarget->tflags));
1da177e4 2462
e80b002b
EM		 2463 if (ioc->bus_type == SPI)
2464 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
c7c82987 2465 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
e80b002b 2466 ioc->name, vtarget->negoFlags, vtarget->maxOffset,
c7c82987 2467 vtarget->minSyncFactor));
1da177e4 2468
e80b002b 2469 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1da177e4 2470 "tagged %d, simple %d, ordered %d\n",
e80b002b 2471 ioc->name,sdev->tagged_supported, sdev->simple_tags,
c7c82987 2472 sdev->ordered_tags));
1da177e4
LT		 2473
2474 return 0;
2475}
2476
1da177e4
LT		 2477/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2478/*
2479 * Private routines...
2480 */
2481
2482/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2483/* Utility function to copy sense data from the scsi_cmnd buffer
2484 * to the FC and SCSI target structures.
2485 *
2486 */
2487static void
0d0c7974 2488mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
1da177e4 2489{
a69de507 2490 VirtDevice *vdevice;
1da177e4
LT		 2491 SCSIIORequest_t *pReq;
2492 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount);
e80b002b 2493 MPT_ADAPTER *ioc = hd->ioc;
1da177e4
LT		 2494
2495 /* Get target structure
2496 */
2497 pReq = (SCSIIORequest_t *) mf;
a69de507 2498 vdevice = sc->device->hostdata;
1da177e4
LT		 2499
2500 if (sense_count) {
2501 u8 *sense_data;
2502 int req_index;
2503
2504 /* Copy the sense received into the scsi command block. */
2505 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
e80b002b 2506 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
1da177e4
LT		 2507 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2508
2509 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2510 */
e80b002b 2511 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
a69de507 2512 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
1da177e4 2513 int idx;
1da177e4 2514
5b5ef4f6 2515 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
1da177e4
LT		 2516 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2517 ioc->events[idx].eventContext = ioc->eventContext;
2518
3d9780b9
DJ		 2519 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2520 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2521 (sc->device->channel << 8) | sc->device->id;
1da177e4 2522
3d9780b9 2523 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
1da177e4
LT		 2524
2525 ioc->eventContext++;
e80b002b 2526 if (ioc->pcidev->vendor ==
786899b0 2527 PCI_VENDOR_ID_IBM) {
e80b002b 2528 mptscsih_issue_sep_command(ioc,
a69de507
EM		 2529 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2530 vdevice->vtarget->tflags |=
786899b0
EM		 2531 MPT_TARGET_FLAGS_LED_ON;
2532 }
1da177e4
LT		 2533 }
2534 }
2535 } else {
e80b002b
EM		 2536 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2537 ioc->name));
1da177e4
LT		 2538 }
2539}
2540
e8206381
EM		 2541/**
2542 * mptscsih_get_scsi_lookup
e8206381
EM		 2543 * @ioc: Pointer to MPT_ADAPTER structure
2544 * @i: index into the array
2545 *
7105a387 2546 * retrieves scmd entry from ScsiLookup[] array list
e8206381 2547 *
7105a387 2548 * Returns the scsi_cmd pointer
e8206381
EM		 2549 **/
2550static struct scsi_cmnd *
2551mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
1da177e4 2552{
e8206381
EM		 2553 unsigned long flags;
2554 struct scsi_cmnd *scmd;
2555
2556 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2557 scmd = ioc->ScsiLookup[i];
2558 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2559
2560 return scmd;
2561}
2562
2563/**
2564 * mptscsih_getclear_scsi_lookup
e8206381
EM		 2565 * @ioc: Pointer to MPT_ADAPTER structure
2566 * @i: index into the array
2567 *
7105a387 2568 * retrieves and clears scmd entry from ScsiLookup[] array list
e8206381 2569 *
7105a387 2570 * Returns the scsi_cmd pointer
e8206381
EM		 2571 **/
2572static struct scsi_cmnd *
2573mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2574{
2575 unsigned long flags;
2576 struct scsi_cmnd *scmd;
2577
2578 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2579 scmd = ioc->ScsiLookup[i];
2580 ioc->ScsiLookup[i] = NULL;
2581 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2582
2583 return scmd;
2584}
2585
2586/**
2587 * mptscsih_set_scsi_lookup
2588 *
2589 * writes a scmd entry into the ScsiLookup[] array list
2590 *
2591 * @ioc: Pointer to MPT_ADAPTER structure
2592 * @i: index into the array
2593 * @scmd: scsi_cmnd pointer
2594 *
2595 **/
2596static void
2597mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2598{
2599 unsigned long flags;
1da177e4 2600
e8206381
EM		 2601 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2602 ioc->ScsiLookup[i] = scmd;
2603 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2604}
2605
2606/**
23f9b75e 2607 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
e8206381 2608 * @ioc: Pointer to MPT_ADAPTER structure
23f9b75e
RD		 2609 * @sc: scsi_cmnd pointer
2610 */
e8206381
EM		 2611static int
2612SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2613{
2614 unsigned long flags;
2615 int i, index=-1;
1da177e4 2616
e8206381
EM		 2617 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2618 for (i = 0; i < ioc->req_depth; i++) {
2619 if (ioc->ScsiLookup[i] == sc) {
2620 index = i;
2621 goto out;
1da177e4
LT		 2622 }
2623 }
2624
e8206381
EM		 2625 out:
2626 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2627 return index;
1da177e4
LT		 2628}
2629
2630/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
0d0c7974 2631int
1da177e4
LT		 2632mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2633{
2634 MPT_SCSI_HOST *hd;
2635 unsigned long flags;
2636
29dd3609
EM		 2637 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2638 ": IOC %s_reset routed to SCSI host driver!\n",
2639 ioc->name, reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
2640 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
1da177e4
LT		 2641
2642 /* If a FW reload request arrives after base installed but
2643 * before all scsi hosts have been attached, then an alt_ioc
2644 * may have a NULL sh pointer.
2645 */
e7eae9f6 2646 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
1da177e4
LT		 2647 return 0;
2648 else
e7eae9f6 2649 hd = shost_priv(ioc->sh);
1da177e4
LT		 2650
2651 if (reset_phase == MPT_IOC_SETUP_RESET) {
6757d6b4 2652 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Setup-Diag Reset\n", ioc->name));
1da177e4
LT		 2653
2654 /* Clean Up:
2655 * 1. Set Hard Reset Pending Flag
2656 * All new commands go to doneQ
2657 */
2658 hd->resetPending = 1;
2659
2660 } else if (reset_phase == MPT_IOC_PRE_RESET) {
6757d6b4 2661 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Pre-Diag Reset\n", ioc->name));
1da177e4
LT		 2662
2663 /* 2. Flush running commands
2664 * Clean ScsiLookup (and associated memory)
2665 * AND clean mytaskQ
2666 */
2667
2668 /* 2b. Reply to OS all known outstanding I/O commands.
2669 */
2670 mptscsih_flush_running_cmds(hd);
2671
2672 /* 2c. If there was an internal command that
2673 * has not completed, configuration or io request,
2674 * free these resources.
2675 */
2676 if (hd->cmdPtr) {
2677 del_timer(&hd->timer);
2678 mpt_free_msg_frame(ioc, hd->cmdPtr);
2679 }
2680
6757d6b4 2681 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Pre-Reset complete.\n", ioc->name));
1da177e4
LT		 2682
2683 } else {
6757d6b4 2684 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Post-Diag Reset\n", ioc->name));
1da177e4
LT		 2685
2686 /* Once a FW reload begins, all new OS commands are
2687 * redirected to the doneQ w/ a reset status.
2688 * Init all control structures.
2689 */
2690
1da177e4
LT		 2691 /* 2. Chain Buffer initialization
2692 */
2693
a9b2937a 2694 /* 4. Renegotiate to all devices, if SPI
1da177e4 2695 */
1da177e4
LT		 2696
2697 /* 5. Enable new commands to be posted
2698 */
2699 spin_lock_irqsave(&ioc->FreeQlock, flags);
2700 hd->tmPending = 0;
2701 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2702 hd->resetPending = 0;
2703 hd->tmState = TM_STATE_NONE;
2704
2705 /* 6. If there was an internal command,
2706 * wake this process up.
2707 */
2708 if (hd->cmdPtr) {
2709 /*
2710 * Wake up the original calling thread
2711 */
2712 hd->pLocal = &hd->localReply;
2713 hd->pLocal->completion = MPT_SCANDV_DID_RESET;
0d0c7974
MED		 2714 hd->scandv_wait_done = 1;
2715 wake_up(&hd->scandv_waitq);
1da177e4
LT		 2716 hd->cmdPtr = NULL;
2717 }
2718
6757d6b4 2719 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Post-Reset complete.\n", ioc->name));
1da177e4
LT		 2720
2721 }
2722
2723 return 1; /* currently means nothing really */
2724}
2725
2726/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
0d0c7974 2727int
1da177e4
LT		 2728mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2729{
2730 MPT_SCSI_HOST *hd;
2731 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2732
6757d6b4 2733 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
1da177e4
LT		 2734 ioc->name, event));
2735
466544d8 2736 if (ioc->sh == NULL ||
e7eae9f6 2737 ((hd = shost_priv(ioc->sh)) == NULL))
466544d8
MED		 2738 return 1;
2739
1da177e4
LT		 2740 switch (event) {
2741 case MPI_EVENT_UNIT_ATTENTION: /* 03 */
2742 /* FIXME! */
2743 break;
2744 case MPI_EVENT_IOC_BUS_RESET: /* 04 */
2745 case MPI_EVENT_EXT_BUS_RESET: /* 05 */
a9b2937a 2746 if (hd && (ioc->bus_type == SPI) && (hd->soft_resets < -1))
466544d8 2747 hd->soft_resets++;
1da177e4
LT		 2748 break;
2749 case MPI_EVENT_LOGOUT: /* 09 */
2750 /* FIXME! */
2751 break;
2752
05e8ec17 2753 case MPI_EVENT_RESCAN: /* 06 */
05e8ec17
MR		 2754 break;
2755
1da177e4
LT		 2756 /*
2757 * CHECKME! Don't think we need to do
2758 * anything for these, but...
2759 */
1da177e4
LT		 2760 case MPI_EVENT_LINK_STATUS_CHANGE: /* 07 */
2761 case MPI_EVENT_LOOP_STATE_CHANGE: /* 08 */
2762 /*
2763 * CHECKME! Falling thru...
2764 */
2765 break;
2766
2767 case MPI_EVENT_INTEGRATED_RAID: /* 0B */
466544d8 2768 break;
1da177e4 2769
1da177e4
LT		 2770 case MPI_EVENT_NONE: /* 00 */
2771 case MPI_EVENT_LOG_DATA: /* 01 */
2772 case MPI_EVENT_STATE_CHANGE: /* 02 */
2773 case MPI_EVENT_EVENT_CHANGE: /* 0A */
2774 default:
29dd3609
EM		 2775 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": Ignoring event (=%02Xh)\n",
2776 ioc->name, event));
1da177e4
LT		 2777 break;
2778 }
2779
2780 return 1; /* currently means nothing really */
2781}
2782
1da177e4
LT		 2783/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2784/*
2785 * Bus Scan and Domain Validation functionality ...
2786 */
2787
2788/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2789/*
2790 * mptscsih_scandv_complete - Scan and DV callback routine registered
2791 * to Fustion MPT (base) driver.
2792 *
2793 * @ioc: Pointer to MPT_ADAPTER structure
2794 * @mf: Pointer to original MPT request frame
2795 * @mr: Pointer to MPT reply frame (NULL if TurboReply)
2796 *
2797 * This routine is called from mpt.c::mpt_interrupt() at the completion
2798 * of any SCSI IO request.
2799 * This routine is registered with the Fusion MPT (base) driver at driver
2800 * load/init time via the mpt_register() API call.
2801 *
2802 * Returns 1 indicating alloc'd request frame ptr should be freed.
2803 *
2804 * Remark: Sets a completion code and (possibly) saves sense data
2805 * in the IOC member localReply structure.
2806 * Used ONLY for DV and other internal commands.
2807 */
0d0c7974 2808int
1da177e4
LT		 2809mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2810{
2811 MPT_SCSI_HOST *hd;
2812 SCSIIORequest_t *pReq;
2813 int completionCode;
2814 u16 req_idx;
2815
e7eae9f6 2816 hd = shost_priv(ioc->sh);
0d0c7974 2817
1da177e4
LT		 2818 if ((mf == NULL) ||
2819 (mf >= MPT_INDEX_2_MFPTR(ioc, ioc->req_depth))) {
2820 printk(MYIOC_s_ERR_FMT
2821 "ScanDvComplete, %s req frame ptr! (=%p)\n",
2822 ioc->name, mf?"BAD":"NULL", (void *) mf);
2823 goto wakeup;
2824 }
2825
1da177e4
LT		 2826 del_timer(&hd->timer);
2827 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
e8206381 2828 mptscsih_set_scsi_lookup(ioc, req_idx, NULL);
1da177e4
LT		 2829 pReq = (SCSIIORequest_t *) mf;
2830
2831 if (mf != hd->cmdPtr) {
2832 printk(MYIOC_s_WARN_FMT "ScanDvComplete (mf=%p, cmdPtr=%p, idx=%d)\n",
e80b002b 2833 ioc->name, (void *)mf, (void *) hd->cmdPtr, req_idx);
1da177e4
LT		 2834 }
2835 hd->cmdPtr = NULL;
2836
6757d6b4 2837 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScanDvComplete (mf=%p,mr=%p,idx=%d)\n",
e80b002b 2838 ioc->name, mf, mr, req_idx));
1da177e4
LT		 2839
2840 hd->pLocal = &hd->localReply;
2841 hd->pLocal->scsiStatus = 0;
2842
2843 /* If target struct exists, clear sense valid flag.
2844 */
2845 if (mr == NULL) {
2846 completionCode = MPT_SCANDV_GOOD;
2847 } else {
2848 SCSIIOReply_t *pReply;
2849 u16 status;
2850 u8 scsi_status;
2851
2852 pReply = (SCSIIOReply_t *) mr;
2853
2854 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2855 scsi_status = pReply->SCSIStatus;
2856
1da177e4
LT		 2857
2858 switch(status) {
2859
2860 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
2861 completionCode = MPT_SCANDV_SELECTION_TIMEOUT;
2862 break;
2863
2864 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
2865 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
2866 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
2867 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
2868 completionCode = MPT_SCANDV_DID_RESET;
2869 break;
2870
2871 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */
2872 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
2873 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */
2874 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2875 ConfigReply_t *pr = (ConfigReply_t *)mr;
2876 completionCode = MPT_SCANDV_GOOD;
2877 hd->pLocal->header.PageVersion = pr->Header.PageVersion;
2878 hd->pLocal->header.PageLength = pr->Header.PageLength;
2879 hd->pLocal->header.PageNumber = pr->Header.PageNumber;
2880 hd->pLocal->header.PageType = pr->Header.PageType;
2881
2882 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2883 /* If the RAID Volume request is successful,
2884 * return GOOD, else indicate that
2885 * some type of error occurred.
2886 */
2887 MpiRaidActionReply_t *pr = (MpiRaidActionReply_t *)mr;
637fa99b 2888 if (le16_to_cpu(pr->ActionStatus) == MPI_RAID_ACTION_ASTATUS_SUCCESS)
1da177e4
LT		 2889 completionCode = MPT_SCANDV_GOOD;
2890 else
2891 completionCode = MPT_SCANDV_SOME_ERROR;
c92f222e 2892 memcpy(hd->pLocal->sense, pr, sizeof(hd->pLocal->sense));
1da177e4
LT		 2893
2894 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
2895 u8 *sense_data;
2896 int sz;
2897
2898 /* save sense data in global structure
2899 */
2900 completionCode = MPT_SCANDV_SENSE;
2901 hd->pLocal->scsiStatus = scsi_status;
e80b002b 2902 sense_data = ((u8 *)ioc->sense_buf_pool +
1da177e4
LT		 2903 (req_idx * MPT_SENSE_BUFFER_ALLOC));
2904
2905 sz = min_t(int, pReq->SenseBufferLength,
2906 SCSI_STD_SENSE_BYTES);
2907 memcpy(hd->pLocal->sense, sense_data, sz);
2908
29dd3609
EM		 2909 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Check Condition, sense ptr %p\n",
2910 ioc->name, sense_data));
1da177e4
LT		 2911 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2912 if (pReq->CDB[0] == INQUIRY)
2913 completionCode = MPT_SCANDV_ISSUE_SENSE;
2914 else
2915 completionCode = MPT_SCANDV_DID_RESET;
2916 }
2917 else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2918 completionCode = MPT_SCANDV_DID_RESET;
2919 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2920 completionCode = MPT_SCANDV_DID_RESET;
2921 else {
2922 completionCode = MPT_SCANDV_GOOD;
2923 hd->pLocal->scsiStatus = scsi_status;
2924 }
2925 break;
2926
2927 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
2928 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2929 completionCode = MPT_SCANDV_DID_RESET;
2930 else
2931 completionCode = MPT_SCANDV_SOME_ERROR;
2932 break;
2933
2934 default:
2935 completionCode = MPT_SCANDV_SOME_ERROR;
2936 break;
2937
2938 } /* switch(status) */
2939
1da177e4
LT		 2940 } /* end of address reply case */
2941
2942 hd->pLocal->completion = completionCode;
2943
2944 /* MF and RF are freed in mpt_interrupt
2945 */
2946wakeup:
2947 /* Free Chain buffers (will never chain) in scan or dv */
2948 //mptscsih_freeChainBuffers(ioc, req_idx);
2949
2950 /*
2951 * Wake up the original calling thread
2952 */
0d0c7974
MED		 2953 hd->scandv_wait_done = 1;
2954 wake_up(&hd->scandv_waitq);
1da177e4
LT		 2955
2956 return 1;
2957}
2958
2959/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2960/* mptscsih_timer_expired - Call back for timer process.
2961 * Used only for dv functionality.
2962 * @data: Pointer to MPT_SCSI_HOST recast as an unsigned long
2963 *
2964 */
0d0c7974
MED		 2965void
2966mptscsih_timer_expired(unsigned long data)
1da177e4
LT		 2967{
2968 MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *) data;
e80b002b 2969 MPT_ADAPTER *ioc = hd->ioc;
1da177e4 2970
e80b002b 2971 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Timer Expired! Cmd %p\n", ioc->name, hd->cmdPtr));
1da177e4
LT		 2972
2973 if (hd->cmdPtr) {
2974 MPIHeader_t *cmd = (MPIHeader_t *)hd->cmdPtr;
2975
2976 if (cmd->Function == MPI_FUNCTION_SCSI_IO_REQUEST) {
2977 /* Desire to issue a task management request here.
2978 * TM requests MUST be single threaded.
2979 * If old eh code and no TM current, issue request.
2980 * If new eh code, do nothing. Wait for OS cmd timeout
2981 * for bus reset.
2982 */
1da177e4
LT		 2983 } else {
2984 /* Perform a FW reload */
e80b002b
EM		 2985 if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0) {
2986 printk(MYIOC_s_WARN_FMT "Firmware Reload FAILED!\n", ioc->name);
1da177e4
LT		 2987 }
2988 }
2989 } else {
2990 /* This should NEVER happen */
e80b002b 2991 printk(MYIOC_s_WARN_FMT "Null cmdPtr!!!!\n", ioc->name);
1da177e4
LT		 2992 }
2993
2994 /* No more processing.
2995 * TM call will generate an interrupt for SCSI TM Management.
2996 * The FW will reply to all outstanding commands, callback will finish cleanup.
2997 * Hard reset clean-up will free all resources.
2998 */
e80b002b 2999 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Timer Expired Complete!\n", ioc->name));
1da177e4
LT		 3000
3001 return;
3002}
3003
1da177e4
LT		 3004
3005/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3006/**
3007 * mptscsih_do_cmd - Do internal command.
3008 * @hd: MPT_SCSI_HOST pointer
3009 * @io: INTERNAL_CMD pointer.
3010 *
3011 * Issue the specified internally generated command and do command
3012 * specific cleanup. For bus scan / DV only.
3013 * NOTES: If command is Inquiry and status is good,
3014 * initialize a target structure, save the data
3015 *
3016 * Remark: Single threaded access only.
3017 *
3018 * Return:
3019 * < 0 if an illegal command or no resources
3020 *
3021 * 0 if good
3022 *
3023 * > 0 if command complete but some type of completion error.
3024 */
3025static int
3026mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
3027{
3028 MPT_FRAME_HDR *mf;
3029 SCSIIORequest_t *pScsiReq;
3030 SCSIIORequest_t ReqCopy;
3031 int my_idx, ii, dir;
3032 int rc, cmdTimeout;
3033 int in_isr;
3034 char cmdLen;
3035 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
3036 char cmd = io->cmd;
e80b002b 3037 MPT_ADAPTER *ioc = hd->ioc;
1da177e4
LT		 3038
3039 in_isr = in_interrupt();
3040 if (in_isr) {
e80b002b
EM		 3041 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Internal SCSI IO request not allowed in ISR context!\n",
3042 ioc->name));
1da177e4
LT		 3043 return -EPERM;
3044 }
3045
3046
3047 /* Set command specific information
3048 */
3049 switch (cmd) {
3050 case INQUIRY:
3051 cmdLen = 6;
3052 dir = MPI_SCSIIO_CONTROL_READ;
3053 CDB[0] = cmd;
3054 CDB[4] = io->size;
3055 cmdTimeout = 10;
3056 break;
3057
3058 case TEST_UNIT_READY:
3059 cmdLen = 6;
3060 dir = MPI_SCSIIO_CONTROL_READ;
3061 cmdTimeout = 10;
3062 break;
3063
3064 case START_STOP:
3065 cmdLen = 6;
3066 dir = MPI_SCSIIO_CONTROL_READ;
3067 CDB[0] = cmd;
3068 CDB[4] = 1; /*Spin up the disk */
3069 cmdTimeout = 15;
3070 break;
3071
3072 case REQUEST_SENSE:
3073 cmdLen = 6;
3074 CDB[0] = cmd;
3075 CDB[4] = io->size;
3076 dir = MPI_SCSIIO_CONTROL_READ;
3077 cmdTimeout = 10;
3078 break;
3079
3080 case READ_BUFFER:
3081 cmdLen = 10;
3082 dir = MPI_SCSIIO_CONTROL_READ;
3083 CDB[0] = cmd;
3084 if (io->flags & MPT_ICFLAG_ECHO) {
3085 CDB[1] = 0x0A;
3086 } else {
3087 CDB[1] = 0x02;
3088 }
3089
3090 if (io->flags & MPT_ICFLAG_BUF_CAP) {
3091 CDB[1] |= 0x01;
3092 }
3093 CDB[6] = (io->size >> 16) & 0xFF;
3094 CDB[7] = (io->size >> 8) & 0xFF;
3095 CDB[8] = io->size & 0xFF;
3096 cmdTimeout = 10;
3097 break;
3098
3099 case WRITE_BUFFER:
3100 cmdLen = 10;
3101 dir = MPI_SCSIIO_CONTROL_WRITE;
3102 CDB[0] = cmd;
3103 if (io->flags & MPT_ICFLAG_ECHO) {
3104 CDB[1] = 0x0A;
3105 } else {
3106 CDB[1] = 0x02;
3107 }
3108 CDB[6] = (io->size >> 16) & 0xFF;
3109 CDB[7] = (io->size >> 8) & 0xFF;
3110 CDB[8] = io->size & 0xFF;
3111 cmdTimeout = 10;
3112 break;
3113
3114 case RESERVE:
3115 cmdLen = 6;
3116 dir = MPI_SCSIIO_CONTROL_READ;
3117 CDB[0] = cmd;
3118 cmdTimeout = 10;
3119 break;
3120
3121 case RELEASE:
3122 cmdLen = 6;
3123 dir = MPI_SCSIIO_CONTROL_READ;
3124 CDB[0] = cmd;
3125 cmdTimeout = 10;
3126 break;
3127
3128 case SYNCHRONIZE_CACHE:
3129 cmdLen = 10;
3130 dir = MPI_SCSIIO_CONTROL_READ;
3131 CDB[0] = cmd;
3132// CDB[1] = 0x02; /* set immediate bit */
3133 cmdTimeout = 10;
3134 break;
3135
3136 default:
3137 /* Error Case */
3138 return -EFAULT;
3139 }
3140
3141 /* Get and Populate a free Frame
3142 */
e80b002b
EM		 3143 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
3144 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "No msg frames!\n",
3145 ioc->name));
1da177e4
LT		 3146 return -EBUSY;
3147 }
3148
3149 pScsiReq = (SCSIIORequest_t *) mf;
3150
3151 /* Get the request index */
3152 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
3153 ADD_INDEX_LOG(my_idx); /* for debug */
3154
3155 if (io->flags & MPT_ICFLAG_PHYS_DISK) {
3156 pScsiReq->TargetID = io->physDiskNum;
3157 pScsiReq->Bus = 0;
3158 pScsiReq->ChainOffset = 0;
3159 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3160 } else {
3161 pScsiReq->TargetID = io->id;
793955f5 3162 pScsiReq->Bus = io->channel;
1da177e4
LT		 3163 pScsiReq->ChainOffset = 0;
3164 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
3165 }
3166
3167 pScsiReq->CDBLength = cmdLen;
3168 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
3169
3170 pScsiReq->Reserved = 0;
3171
3172 pScsiReq->MsgFlags = mpt_msg_flags();
3173 /* MsgContext set in mpt_get_msg_fram call */
3174
793955f5 3175 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
1da177e4
LT		 3176
3177 if (io->flags & MPT_ICFLAG_TAGGED_CMD)
3178 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
3179 else
3180 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3181
3182 if (cmd == REQUEST_SENSE) {
3183 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
e80b002b
EM		 3184 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Untagged! 0x%2x\n",
3185 ioc->name, cmd));
1da177e4
LT		 3186 }
3187
3188 for (ii=0; ii < 16; ii++)
3189 pScsiReq->CDB[ii] = CDB[ii];
3190
3191 pScsiReq->DataLength = cpu_to_le32(io->size);
e80b002b 3192 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1da177e4
LT		 3193 + (my_idx * MPT_SENSE_BUFFER_ALLOC));
3194
e80b002b
EM		 3195 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Sending Command 0x%x for (%d:%d:%d)\n",
3196 ioc->name, cmd, io->channel, io->id, io->lun));
1da177e4
LT		 3197
3198 if (dir == MPI_SCSIIO_CONTROL_READ) {
3199 mpt_add_sge((char *) &pScsiReq->SGL,
3200 MPT_SGE_FLAGS_SSIMPLE_READ | io->size,
3201 io->data_dma);
3202 } else {
3203 mpt_add_sge((char *) &pScsiReq->SGL,
3204 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size,
3205 io->data_dma);
3206 }
3207
3208 /* The ISR will free the request frame, but we need
3209 * the information to initialize the target. Duplicate.
3210 */
3211 memcpy(&ReqCopy, pScsiReq, sizeof(SCSIIORequest_t));
3212
3213 /* Issue this command after:
3214 * finish init
3215 * add timer
3216 * Wait until the reply has been received
3217 * ScsiScanDvCtx callback function will
3218 * set hd->pLocal;
3219 * set scandv_wait_done and call wake_up
3220 */
3221 hd->pLocal = NULL;
3222 hd->timer.expires = jiffies + HZ*cmdTimeout;
0d0c7974 3223 hd->scandv_wait_done = 0;
1da177e4
LT		 3224
3225 /* Save cmd pointer, for resource free if timeout or
3226 * FW reload occurs
3227 */
3228 hd->cmdPtr = mf;
3229
3230 add_timer(&hd->timer);
e80b002b 3231 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
0d0c7974 3232 wait_event(hd->scandv_waitq, hd->scandv_wait_done);
1da177e4
LT		 3233
3234 if (hd->pLocal) {
3235 rc = hd->pLocal->completion;
3236 hd->pLocal->skip = 0;
3237
3238 /* Always set fatal error codes in some cases.
3239 */
3240 if (rc == MPT_SCANDV_SELECTION_TIMEOUT)
3241 rc = -ENXIO;
3242 else if (rc == MPT_SCANDV_SOME_ERROR)
3243 rc = -rc;
3244 } else {
3245 rc = -EFAULT;
3246 /* This should never happen. */
e80b002b
EM		 3247 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "_do_cmd: Null pLocal!!!\n",
3248 ioc->name));
1da177e4
LT		 3249 }
3250
3251 return rc;
3252}
3253
c7c82987
MED		 3254/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3255/**
3256 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3257 * @hd: Pointer to a SCSI HOST structure
d9489fb6 3258 * @vdevice: virtual target device
c7c82987
MED		 3259 *
3260 * Uses the ISR, but with special processing.
3261 * MUST be single-threaded.
3262 *
3263 */
3264static void
3265mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3266{
3267 INTERNAL_CMD iocmd;
1da177e4 3268
cc78d30a
EM		 3269 /* Ignore hidden raid components, this is handled when the command
3270 * is sent to the volume
3271 */
3272 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3273 return;
3274
3275 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3276 !vdevice->configured_lun)
3277 return;
3278
c7c82987
MED		 3279 /* Following parameters will not change
3280 * in this routine.
3281 */
3282 iocmd.cmd = SYNCHRONIZE_CACHE;
3283 iocmd.flags = 0;
3284 iocmd.physDiskNum = -1;
3285 iocmd.data = NULL;
3286 iocmd.data_dma = -1;
3287 iocmd.size = 0;
3288 iocmd.rsvd = iocmd.rsvd2 = 0;
793955f5
EM		 3289 iocmd.channel = vdevice->vtarget->channel;
3290 iocmd.id = vdevice->vtarget->id;
3291 iocmd.lun = vdevice->lun;
1da177e4 3292
cc78d30a 3293 mptscsih_do_cmd(hd, &iocmd);
1da177e4
LT		 3294}
3295
edb9068d 3296static ssize_t
ee959b00
TJ		 3297mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3298 char *buf)
edb9068d 3299{
ee959b00 3300 struct Scsi_Host *host = class_to_shost(dev);
e7eae9f6 3301 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3302 MPT_ADAPTER *ioc = hd->ioc;
3303
3304 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3305 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3306 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3307 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3308 ioc->facts.FWVersion.Word & 0x000000FF);
3309}
ee959b00 3310static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
edb9068d
PS		 3311
3312static ssize_t
ee959b00
TJ		 3313mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3314 char *buf)
edb9068d 3315{
ee959b00 3316 struct Scsi_Host *host = class_to_shost(dev);
e7eae9f6 3317 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3318 MPT_ADAPTER *ioc = hd->ioc;
3319
3320 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3321 (ioc->biosVersion & 0xFF000000) >> 24,
3322 (ioc->biosVersion & 0x00FF0000) >> 16,
3323 (ioc->biosVersion & 0x0000FF00) >> 8,
3324 ioc->biosVersion & 0x000000FF);
3325}
ee959b00 3326static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
edb9068d
PS		 3327
3328static ssize_t
ee959b00
TJ		 3329mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3330 char *buf)
edb9068d 3331{
ee959b00 3332 struct Scsi_Host *host = class_to_shost(dev);
e7eae9f6 3333 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3334 MPT_ADAPTER *ioc = hd->ioc;
3335
3336 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3337}
ee959b00 3338static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
edb9068d
PS		 3339
3340static ssize_t
ee959b00
TJ		 3341mptscsih_version_product_show(struct device *dev,
3342 struct device_attribute *attr,
3343char *buf)
edb9068d 3344{
ee959b00 3345 struct Scsi_Host *host = class_to_shost(dev);
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}
ee959b00 3351static DEVICE_ATTR(version_product, S_IRUGO,
edb9068d
PS		 3352 mptscsih_version_product_show, NULL);
3353
3354static ssize_t
ee959b00
TJ		 3355mptscsih_version_nvdata_persistent_show(struct device *dev,
3356 struct device_attribute *attr,
3357 char *buf)
edb9068d 3358{
ee959b00 3359 struct Scsi_Host *host = class_to_shost(dev);
e7eae9f6 3360 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3361 MPT_ADAPTER *ioc = hd->ioc;
3362
3363 return snprintf(buf, PAGE_SIZE, "%02xh\n",
3364 ioc->nvdata_version_persistent);
3365}
ee959b00 3366static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
edb9068d
PS		 3367 mptscsih_version_nvdata_persistent_show, NULL);
3368
3369static ssize_t
ee959b00
TJ		 3370mptscsih_version_nvdata_default_show(struct device *dev,
3371 struct device_attribute *attr, char *buf)
edb9068d 3372{
ee959b00 3373 struct Scsi_Host *host = class_to_shost(dev);
e7eae9f6 3374 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3375 MPT_ADAPTER *ioc = hd->ioc;
3376
3377 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3378}
ee959b00 3379static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
edb9068d
PS		 3380 mptscsih_version_nvdata_default_show, NULL);
3381
3382static ssize_t
ee959b00
TJ		 3383mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3384 char *buf)
edb9068d 3385{
ee959b00 3386 struct Scsi_Host *host = class_to_shost(dev);
e7eae9f6 3387 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3388 MPT_ADAPTER *ioc = hd->ioc;
3389
3390 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3391}
ee959b00 3392static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
edb9068d
PS		 3393
3394static ssize_t
ee959b00
TJ		 3395mptscsih_board_assembly_show(struct device *dev,
3396 struct device_attribute *attr, char *buf)
edb9068d 3397{
ee959b00 3398 struct Scsi_Host *host = class_to_shost(dev);
e7eae9f6 3399 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3400 MPT_ADAPTER *ioc = hd->ioc;
3401
3402 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3403}
ee959b00 3404static DEVICE_ATTR(board_assembly, S_IRUGO,
edb9068d
PS		 3405 mptscsih_board_assembly_show, NULL);
3406
3407static ssize_t
ee959b00
TJ		 3408mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3409 char *buf)
edb9068d 3410{
ee959b00 3411 struct Scsi_Host *host = class_to_shost(dev);
e7eae9f6 3412 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3413 MPT_ADAPTER *ioc = hd->ioc;
3414
3415 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3416}
ee959b00 3417static DEVICE_ATTR(board_tracer, S_IRUGO,
edb9068d
PS		 3418 mptscsih_board_tracer_show, NULL);
3419
3420static ssize_t
ee959b00
TJ		 3421mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3422 char *buf)
edb9068d 3423{
ee959b00 3424 struct Scsi_Host *host = class_to_shost(dev);
e7eae9f6 3425 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3426 MPT_ADAPTER *ioc = hd->ioc;
3427
3428 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3429}
ee959b00 3430static DEVICE_ATTR(io_delay, S_IRUGO,
edb9068d
PS		 3431 mptscsih_io_delay_show, NULL);
3432
3433static ssize_t
ee959b00
TJ		 3434mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3435 char *buf)
edb9068d 3436{
ee959b00 3437 struct Scsi_Host *host = class_to_shost(dev);
e7eae9f6 3438 MPT_SCSI_HOST *hd = shost_priv(host);
edb9068d
PS		 3439 MPT_ADAPTER *ioc = hd->ioc;
3440
3441 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3442}
ee959b00 3443static DEVICE_ATTR(device_delay, S_IRUGO,
edb9068d
PS		 3444 mptscsih_device_delay_show, NULL);
3445
6757d6b4 3446static ssize_t
ee959b00
TJ		 3447mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3448 char *buf)
6757d6b4 3449{
ee959b00 3450 struct Scsi_Host *host = class_to_shost(dev);
e7eae9f6 3451 MPT_SCSI_HOST *hd = shost_priv(host);
6757d6b4
PS		 3452 MPT_ADAPTER *ioc = hd->ioc;
3453
3454 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3455}
3456static ssize_t
ee959b00
TJ		 3457mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3458 const char *buf, size_t count)
6757d6b4 3459{
ee959b00 3460 struct Scsi_Host *host = class_to_shost(dev);
e7eae9f6 3461 MPT_SCSI_HOST *hd = shost_priv(host);
6757d6b4
PS		 3462 MPT_ADAPTER *ioc = hd->ioc;
3463 int val = 0;
3464
3465 if (sscanf(buf, "%x", &val) != 1)
3466 return -EINVAL;
3467
3468 ioc->debug_level = val;
3469 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3470 ioc->name, ioc->debug_level);
3471 return strlen(buf);
3472}
ee959b00
TJ		 3473static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3474 mptscsih_debug_level_show, mptscsih_debug_level_store);
3475
3476struct device_attribute *mptscsih_host_attrs[] = {
3477 &dev_attr_version_fw,
3478 &dev_attr_version_bios,
3479 &dev_attr_version_mpi,
3480 &dev_attr_version_product,
3481 &dev_attr_version_nvdata_persistent,
3482 &dev_attr_version_nvdata_default,
3483 &dev_attr_board_name,
3484 &dev_attr_board_assembly,
3485 &dev_attr_board_tracer,
3486 &dev_attr_io_delay,
3487 &dev_attr_device_delay,
3488 &dev_attr_debug_level,
edb9068d
PS		 3489 NULL,
3490};
3491EXPORT_SYMBOL(mptscsih_host_attrs);
3492
0d0c7974
MED		 3493EXPORT_SYMBOL(mptscsih_remove);
3494EXPORT_SYMBOL(mptscsih_shutdown);
3495#ifdef CONFIG_PM
3496EXPORT_SYMBOL(mptscsih_suspend);
3497EXPORT_SYMBOL(mptscsih_resume);
3498#endif
3499EXPORT_SYMBOL(mptscsih_proc_info);
3500EXPORT_SYMBOL(mptscsih_info);
3501EXPORT_SYMBOL(mptscsih_qcmd);
0d0c7974
MED		 3502EXPORT_SYMBOL(mptscsih_slave_destroy);
3503EXPORT_SYMBOL(mptscsih_slave_configure);
3504EXPORT_SYMBOL(mptscsih_abort);
3505EXPORT_SYMBOL(mptscsih_dev_reset);
3506EXPORT_SYMBOL(mptscsih_bus_reset);
3507EXPORT_SYMBOL(mptscsih_host_reset);
3508EXPORT_SYMBOL(mptscsih_bios_param);
3509EXPORT_SYMBOL(mptscsih_io_done);
3510EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3511EXPORT_SYMBOL(mptscsih_scandv_complete);
3512EXPORT_SYMBOL(mptscsih_event_process);
3513EXPORT_SYMBOL(mptscsih_ioc_reset);
6e3815ba 3514EXPORT_SYMBOL(mptscsih_change_queue_depth);
0d0c7974 3515EXPORT_SYMBOL(mptscsih_timer_expired);
663e1aa1 3516EXPORT_SYMBOL(mptscsih_TMHandler);
1da177e4 3517
0d0c7974 3518/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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