Merge branch 'mfd/wm8994' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...
[linux-2.6.git] / drivers / message / fusion / mptscsih.c
1 /*
2  *  linux/drivers/message/fusion/mptscsih.c
3  *      For use with LSI PCI chip/adapter(s)
4  *      running LSI Fusion MPT (Message Passing Technology) firmware.
5  *
6  *  Copyright (c) 1999-2008 LSI Corporation
7  *  (mailto:DL-MPTFusionLinux@lsi.com)
8  *
9  */
10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
11 /*
12     This program is free software; you can redistribute it and/or modify
13     it under the terms of the GNU General Public License as published by
14     the Free Software Foundation; version 2 of the License.
15
16     This program is distributed in the hope that it will be useful,
17     but WITHOUT ANY WARRANTY; without even the implied warranty of
18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19     GNU General Public License for more details.
20
21     NO WARRANTY
22     THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
23     CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
24     LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
25     MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
26     solely responsible for determining the appropriateness of using and
27     distributing the Program and assumes all risks associated with its
28     exercise of rights under this Agreement, including but not limited to
29     the risks and costs of program errors, damage to or loss of data,
30     programs or equipment, and unavailability or interruption of operations.
31
32     DISCLAIMER OF LIABILITY
33     NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
34     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35     DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
36     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
37     TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38     USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
39     HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40
41     You should have received a copy of the GNU General Public License
42     along with this program; if not, write to the Free Software
43     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
44 */
45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
46
47 #include <linux/module.h>
48 #include <linux/kernel.h>
49 #include <linux/slab.h>
50 #include <linux/init.h>
51 #include <linux/errno.h>
52 #include <linux/kdev_t.h>
53 #include <linux/blkdev.h>
54 #include <linux/delay.h>        /* for mdelay */
55 #include <linux/interrupt.h>    /* needed for in_interrupt() proto */
56 #include <linux/reboot.h>       /* notifier code */
57 #include <linux/workqueue.h>
58
59 #include <scsi/scsi.h>
60 #include <scsi/scsi_cmnd.h>
61 #include <scsi/scsi_device.h>
62 #include <scsi/scsi_host.h>
63 #include <scsi/scsi_tcq.h>
64 #include <scsi/scsi_dbg.h>
65
66 #include "mptbase.h"
67 #include "mptscsih.h"
68 #include "lsi/mpi_log_sas.h"
69
70 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
71 #define my_NAME         "Fusion MPT SCSI Host driver"
72 #define my_VERSION      MPT_LINUX_VERSION_COMMON
73 #define MYNAM           "mptscsih"
74
75 MODULE_AUTHOR(MODULEAUTHOR);
76 MODULE_DESCRIPTION(my_NAME);
77 MODULE_LICENSE("GPL");
78 MODULE_VERSION(my_VERSION);
79
80 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
81 /*
82  *  Other private/forward protos...
83  */
84 struct scsi_cmnd        *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
85 static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i);
86 static void     mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd);
87 static int      SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd);
88 int             mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
89 static void     mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
90 int             mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
91
92 static int      mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
93                                  SCSIIORequest_t *pReq, int req_idx);
94 static void     mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
95 static void     mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
96
97 int     mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id,
98                 int lun, int ctx2abort, ulong timeout);
99
100 int             mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
101 int             mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
102
103 void
104 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code);
105 static int      mptscsih_get_completion_code(MPT_ADAPTER *ioc,
106                 MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply);
107 int             mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
108 static int      mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
109 static void     mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
110
111 static int
112 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
113                                 SCSITaskMgmtReply_t *pScsiTmReply);
114 void            mptscsih_remove(struct pci_dev *);
115 void            mptscsih_shutdown(struct pci_dev *);
116 #ifdef CONFIG_PM
117 int             mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
118 int             mptscsih_resume(struct pci_dev *pdev);
119 #endif
120
121 #define SNS_LEN(scp)    SCSI_SENSE_BUFFERSIZE
122
123
124 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
125 /*
126  *      mptscsih_getFreeChainBuffer - Function to get a free chain
127  *      from the MPT_SCSI_HOST FreeChainQ.
128  *      @ioc: Pointer to MPT_ADAPTER structure
129  *      @req_idx: Index of the SCSI IO request frame. (output)
130  *
131  *      return SUCCESS or FAILED
132  */
133 static inline int
134 mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
135 {
136         MPT_FRAME_HDR *chainBuf;
137         unsigned long flags;
138         int rc;
139         int chain_idx;
140
141         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n",
142             ioc->name));
143         spin_lock_irqsave(&ioc->FreeQlock, flags);
144         if (!list_empty(&ioc->FreeChainQ)) {
145                 int offset;
146
147                 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR,
148                                 u.frame.linkage.list);
149                 list_del(&chainBuf->u.frame.linkage.list);
150                 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer;
151                 chain_idx = offset / ioc->req_sz;
152                 rc = SUCCESS;
153                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
154                     "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n",
155                     ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx));
156         } else {
157                 rc = FAILED;
158                 chain_idx = MPT_HOST_NO_CHAIN;
159                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n",
160                     ioc->name));
161         }
162         spin_unlock_irqrestore(&ioc->FreeQlock, flags);
163
164         *retIndex = chain_idx;
165         return rc;
166 } /* mptscsih_getFreeChainBuffer() */
167
168 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
169 /*
170  *      mptscsih_AddSGE - Add a SGE (plus chain buffers) to the
171  *      SCSIIORequest_t Message Frame.
172  *      @ioc: Pointer to MPT_ADAPTER structure
173  *      @SCpnt: Pointer to scsi_cmnd structure
174  *      @pReq: Pointer to SCSIIORequest_t structure
175  *
176  *      Returns ...
177  */
178 static int
179 mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
180                 SCSIIORequest_t *pReq, int req_idx)
181 {
182         char    *psge;
183         char    *chainSge;
184         struct scatterlist *sg;
185         int      frm_sz;
186         int      sges_left, sg_done;
187         int      chain_idx = MPT_HOST_NO_CHAIN;
188         int      sgeOffset;
189         int      numSgeSlots, numSgeThisFrame;
190         u32      sgflags, sgdir, thisxfer = 0;
191         int      chain_dma_off = 0;
192         int      newIndex;
193         int      ii;
194         dma_addr_t v2;
195         u32     RequestNB;
196
197         sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
198         if (sgdir == MPI_SCSIIO_CONTROL_WRITE)  {
199                 sgdir = MPT_TRANSFER_HOST_TO_IOC;
200         } else {
201                 sgdir = MPT_TRANSFER_IOC_TO_HOST;
202         }
203
204         psge = (char *) &pReq->SGL;
205         frm_sz = ioc->req_sz;
206
207         /* Map the data portion, if any.
208          * sges_left  = 0 if no data transfer.
209          */
210         sges_left = scsi_dma_map(SCpnt);
211         if (sges_left < 0)
212                 return FAILED;
213
214         /* Handle the SG case.
215          */
216         sg = scsi_sglist(SCpnt);
217         sg_done  = 0;
218         sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION);
219         chainSge = NULL;
220
221         /* Prior to entering this loop - the following must be set
222          * current MF:  sgeOffset (bytes)
223          *              chainSge (Null if original MF is not a chain buffer)
224          *              sg_done (num SGE done for this MF)
225          */
226
227 nextSGEset:
228         numSgeSlots = ((frm_sz - sgeOffset) / ioc->SGE_size);
229         numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
230
231         sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | sgdir;
232
233         /* Get first (num - 1) SG elements
234          * Skip any SG entries with a length of 0
235          * NOTE: at finish, sg and psge pointed to NEXT data/location positions
236          */
237         for (ii=0; ii < (numSgeThisFrame-1); ii++) {
238                 thisxfer = sg_dma_len(sg);
239                 if (thisxfer == 0) {
240                         /* Get next SG element from the OS */
241                         sg = sg_next(sg);
242                         sg_done++;
243                         continue;
244                 }
245
246                 v2 = sg_dma_address(sg);
247                 ioc->add_sge(psge, sgflags | thisxfer, v2);
248
249                 /* Get next SG element from the OS */
250                 sg = sg_next(sg);
251                 psge += ioc->SGE_size;
252                 sgeOffset += ioc->SGE_size;
253                 sg_done++;
254         }
255
256         if (numSgeThisFrame == sges_left) {
257                 /* Add last element, end of buffer and end of list flags.
258                  */
259                 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT |
260                                 MPT_SGE_FLAGS_END_OF_BUFFER |
261                                 MPT_SGE_FLAGS_END_OF_LIST;
262
263                 /* Add last SGE and set termination flags.
264                  * Note: Last SGE may have a length of 0 - which should be ok.
265                  */
266                 thisxfer = sg_dma_len(sg);
267
268                 v2 = sg_dma_address(sg);
269                 ioc->add_sge(psge, sgflags | thisxfer, v2);
270                 sgeOffset += ioc->SGE_size;
271                 sg_done++;
272
273                 if (chainSge) {
274                         /* The current buffer is a chain buffer,
275                          * but there is not another one.
276                          * Update the chain element
277                          * Offset and Length fields.
278                          */
279                         ioc->add_chain((char *)chainSge, 0, sgeOffset,
280                                 ioc->ChainBufferDMA + chain_dma_off);
281                 } else {
282                         /* The current buffer is the original MF
283                          * and there is no Chain buffer.
284                          */
285                         pReq->ChainOffset = 0;
286                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
287                         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
288                             "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
289                         ioc->RequestNB[req_idx] = RequestNB;
290                 }
291         } else {
292                 /* At least one chain buffer is needed.
293                  * Complete the first MF
294                  *  - last SGE element, set the LastElement bit
295                  *  - set ChainOffset (words) for orig MF
296                  *             (OR finish previous MF chain buffer)
297                  *  - update MFStructPtr ChainIndex
298                  *  - Populate chain element
299                  * Also
300                  * Loop until done.
301                  */
302
303                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n",
304                                 ioc->name, sg_done));
305
306                 /* Set LAST_ELEMENT flag for last non-chain element
307                  * in the buffer. Since psge points at the NEXT
308                  * SGE element, go back one SGE element, update the flags
309                  * and reset the pointer. (Note: sgflags & thisxfer are already
310                  * set properly).
311                  */
312                 if (sg_done) {
313                         u32 *ptmp = (u32 *) (psge - ioc->SGE_size);
314                         sgflags = le32_to_cpu(*ptmp);
315                         sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT;
316                         *ptmp = cpu_to_le32(sgflags);
317                 }
318
319                 if (chainSge) {
320                         /* The current buffer is a chain buffer.
321                          * chainSge points to the previous Chain Element.
322                          * Update its chain element Offset and Length (must
323                          * include chain element size) fields.
324                          * Old chain element is now complete.
325                          */
326                         u8 nextChain = (u8) (sgeOffset >> 2);
327                         sgeOffset += ioc->SGE_size;
328                         ioc->add_chain((char *)chainSge, nextChain, sgeOffset,
329                                          ioc->ChainBufferDMA + chain_dma_off);
330                 } else {
331                         /* The original MF buffer requires a chain buffer -
332                          * set the offset.
333                          * Last element in this MF is a chain element.
334                          */
335                         pReq->ChainOffset = (u8) (sgeOffset >> 2);
336                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
337                         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
338                         ioc->RequestNB[req_idx] = RequestNB;
339                 }
340
341                 sges_left -= sg_done;
342
343
344                 /* NOTE: psge points to the beginning of the chain element
345                  * in current buffer. Get a chain buffer.
346                  */
347                 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
348                         dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
349                             "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
350                             ioc->name, pReq->CDB[0], SCpnt));
351                         return FAILED;
352                 }
353
354                 /* Update the tracking arrays.
355                  * If chainSge == NULL, update ReqToChain, else ChainToChain
356                  */
357                 if (chainSge) {
358                         ioc->ChainToChain[chain_idx] = newIndex;
359                 } else {
360                         ioc->ReqToChain[req_idx] = newIndex;
361                 }
362                 chain_idx = newIndex;
363                 chain_dma_off = ioc->req_sz * chain_idx;
364
365                 /* Populate the chainSGE for the current buffer.
366                  * - Set chain buffer pointer to psge and fill
367                  *   out the Address and Flags fields.
368                  */
369                 chainSge = (char *) psge;
370                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "  Current buff @ %p (index 0x%x)",
371                     ioc->name, psge, req_idx));
372
373                 /* Start the SGE for the next buffer
374                  */
375                 psge = (char *) (ioc->ChainBuffer + chain_dma_off);
376                 sgeOffset = 0;
377                 sg_done = 0;
378
379                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "  Chain buff @ %p (index 0x%x)\n",
380                     ioc->name, psge, chain_idx));
381
382                 /* Start the SGE for the next buffer
383                  */
384
385                 goto nextSGEset;
386         }
387
388         return SUCCESS;
389 } /* mptscsih_AddSGE() */
390
391 static void
392 mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
393     U32 SlotStatus)
394 {
395         MPT_FRAME_HDR *mf;
396         SEPRequest_t     *SEPMsg;
397
398         if (ioc->bus_type != SAS)
399                 return;
400
401         /* Not supported for hidden raid components
402          */
403         if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
404                 return;
405
406         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
407                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
408                     ioc->name,__func__));
409                 return;
410         }
411
412         SEPMsg = (SEPRequest_t *)mf;
413         SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
414         SEPMsg->Bus = vtarget->channel;
415         SEPMsg->TargetID = vtarget->id;
416         SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
417         SEPMsg->SlotStatus = SlotStatus;
418         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
419             "Sending SEP cmd=%x channel=%d id=%d\n",
420             ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
421         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
422 }
423
424 #ifdef CONFIG_FUSION_LOGGING
425 /**
426  *      mptscsih_info_scsiio - debug print info on reply frame
427  *      @ioc: Pointer to MPT_ADAPTER structure
428  *      @sc: original scsi cmnd pointer
429  *      @pScsiReply: Pointer to MPT reply frame
430  *
431  *      MPT_DEBUG_REPLY needs to be enabled to obtain this info
432  *
433  *      Refer to lsi/mpi.h.
434  **/
435 static void
436 mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
437 {
438         char    *desc = NULL;
439         char    *desc1 = NULL;
440         u16     ioc_status;
441         u8      skey, asc, ascq;
442
443         ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
444
445         switch (ioc_status) {
446
447         case MPI_IOCSTATUS_SUCCESS:
448                 desc = "success";
449                 break;
450         case MPI_IOCSTATUS_SCSI_INVALID_BUS:
451                 desc = "invalid bus";
452                 break;
453         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
454                 desc = "invalid target_id";
455                 break;
456         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
457                 desc = "device not there";
458                 break;
459         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
460                 desc = "data overrun";
461                 break;
462         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
463                 desc = "data underrun";
464                 break;
465         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
466                 desc = "I/O data error";
467                 break;
468         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
469                 desc = "protocol error";
470                 break;
471         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
472                 desc = "task terminated";
473                 break;
474         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
475                 desc = "residual mismatch";
476                 break;
477         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
478                 desc = "task management failed";
479                 break;
480         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
481                 desc = "IOC terminated";
482                 break;
483         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
484                 desc = "ext terminated";
485                 break;
486         default:
487                 desc = "";
488                 break;
489         }
490
491         switch (pScsiReply->SCSIStatus)
492         {
493
494         case MPI_SCSI_STATUS_SUCCESS:
495                 desc1 = "success";
496                 break;
497         case MPI_SCSI_STATUS_CHECK_CONDITION:
498                 desc1 = "check condition";
499                 break;
500         case MPI_SCSI_STATUS_CONDITION_MET:
501                 desc1 = "condition met";
502                 break;
503         case MPI_SCSI_STATUS_BUSY:
504                 desc1 = "busy";
505                 break;
506         case MPI_SCSI_STATUS_INTERMEDIATE:
507                 desc1 = "intermediate";
508                 break;
509         case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET:
510                 desc1 = "intermediate condmet";
511                 break;
512         case MPI_SCSI_STATUS_RESERVATION_CONFLICT:
513                 desc1 = "reservation conflict";
514                 break;
515         case MPI_SCSI_STATUS_COMMAND_TERMINATED:
516                 desc1 = "command terminated";
517                 break;
518         case MPI_SCSI_STATUS_TASK_SET_FULL:
519                 desc1 = "task set full";
520                 break;
521         case MPI_SCSI_STATUS_ACA_ACTIVE:
522                 desc1 = "aca active";
523                 break;
524         case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT:
525                 desc1 = "fcpext device logged out";
526                 break;
527         case MPI_SCSI_STATUS_FCPEXT_NO_LINK:
528                 desc1 = "fcpext no link";
529                 break;
530         case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED:
531                 desc1 = "fcpext unassigned";
532                 break;
533         default:
534                 desc1 = "";
535                 break;
536         }
537
538         scsi_print_command(sc);
539         printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %d\n",
540             ioc->name, pScsiReply->Bus, pScsiReply->TargetID, sc->device->lun);
541         printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
542             "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
543             scsi_get_resid(sc));
544         printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, "
545             "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag),
546             le32_to_cpu(pScsiReply->TransferCount), sc->result);
547
548         printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), "
549             "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
550             ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus,
551             pScsiReply->SCSIState);
552
553         if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
554                 skey = sc->sense_buffer[2] & 0x0F;
555                 asc = sc->sense_buffer[12];
556                 ascq = sc->sense_buffer[13];
557
558                 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: "
559                     "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq);
560         }
561
562         /*
563          *  Look for + dump FCP ResponseInfo[]!
564          */
565         if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
566             pScsiReply->ResponseInfo)
567                 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n",
568                     ioc->name, le32_to_cpu(pScsiReply->ResponseInfo));
569 }
570 #endif
571
572 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
573 /*
574  *      mptscsih_io_done - Main SCSI IO callback routine registered to
575  *      Fusion MPT (base) driver
576  *      @ioc: Pointer to MPT_ADAPTER structure
577  *      @mf: Pointer to original MPT request frame
578  *      @r: Pointer to MPT reply frame (NULL if TurboReply)
579  *
580  *      This routine is called from mpt.c::mpt_interrupt() at the completion
581  *      of any SCSI IO request.
582  *      This routine is registered with the Fusion MPT (base) driver at driver
583  *      load/init time via the mpt_register() API call.
584  *
585  *      Returns 1 indicating alloc'd request frame ptr should be freed.
586  */
587 int
588 mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
589 {
590         struct scsi_cmnd        *sc;
591         MPT_SCSI_HOST   *hd;
592         SCSIIORequest_t *pScsiReq;
593         SCSIIOReply_t   *pScsiReply;
594         u16              req_idx, req_idx_MR;
595         VirtDevice       *vdevice;
596         VirtTarget       *vtarget;
597
598         hd = shost_priv(ioc->sh);
599         req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
600         req_idx_MR = (mr != NULL) ?
601             le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
602
603         /* Special case, where already freed message frame is received from
604          * Firmware. It happens with Resetting IOC.
605          * Return immediately. Do not care
606          */
607         if ((req_idx != req_idx_MR) ||
608             (le32_to_cpu(mf->u.frame.linkage.arg1) == 0xdeadbeaf))
609                 return 0;
610
611         sc = mptscsih_getclear_scsi_lookup(ioc, req_idx);
612         if (sc == NULL) {
613                 MPIHeader_t *hdr = (MPIHeader_t *)mf;
614
615                 /* Remark: writeSDP1 will use the ScsiDoneCtx
616                  * If a SCSI I/O cmd, device disabled by OS and
617                  * completion done. Cannot touch sc struct. Just free mem.
618                  */
619                 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST)
620                         printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n",
621                         ioc->name);
622
623                 mptscsih_freeChainBuffers(ioc, req_idx);
624                 return 1;
625         }
626
627         if ((unsigned char *)mf != sc->host_scribble) {
628                 mptscsih_freeChainBuffers(ioc, req_idx);
629                 return 1;
630         }
631
632         if (ioc->bus_type == SAS) {
633                 VirtDevice *vdevice = sc->device->hostdata;
634
635                 if (!vdevice || !vdevice->vtarget ||
636                     vdevice->vtarget->deleted) {
637                         sc->result = DID_NO_CONNECT << 16;
638                         goto out;
639                 }
640         }
641
642         sc->host_scribble = NULL;
643         sc->result = DID_OK << 16;              /* Set default reply as OK */
644         pScsiReq = (SCSIIORequest_t *) mf;
645         pScsiReply = (SCSIIOReply_t *) mr;
646
647         if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
648                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
649                         "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n",
650                         ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag));
651         }else{
652                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
653                         "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
654                         ioc->name, mf, mr, sc, req_idx));
655         }
656
657         if (pScsiReply == NULL) {
658                 /* special context reply handling */
659                 ;
660         } else {
661                 u32      xfer_cnt;
662                 u16      status;
663                 u8       scsi_state, scsi_status;
664                 u32      log_info;
665
666                 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
667
668                 scsi_state = pScsiReply->SCSIState;
669                 scsi_status = pScsiReply->SCSIStatus;
670                 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
671                 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
672                 log_info = le32_to_cpu(pScsiReply->IOCLogInfo);
673
674                 /*
675                  *  if we get a data underrun indication, yet no data was
676                  *  transferred and the SCSI status indicates that the
677                  *  command was never started, change the data underrun
678                  *  to success
679                  */
680                 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
681                     (scsi_status == MPI_SCSI_STATUS_BUSY ||
682                      scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT ||
683                      scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) {
684                         status = MPI_IOCSTATUS_SUCCESS;
685                 }
686
687                 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
688                         mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);
689
690                 /*
691                  *  Look for + dump FCP ResponseInfo[]!
692                  */
693                 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
694                     pScsiReply->ResponseInfo) {
695                         printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%d] "
696                         "FCP_ResponseInfo=%08xh\n", ioc->name,
697                         sc->device->host->host_no, sc->device->channel,
698                         sc->device->id, sc->device->lun,
699                         le32_to_cpu(pScsiReply->ResponseInfo));
700                 }
701
702                 switch(status) {
703                 case MPI_IOCSTATUS_BUSY:                        /* 0x0002 */
704                 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:      /* 0x0006 */
705                         /* CHECKME!
706                          * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry)
707                          * But not: DID_BUS_BUSY lest one risk
708                          * killing interrupt handler:-(
709                          */
710                         sc->result = SAM_STAT_BUSY;
711                         break;
712
713                 case MPI_IOCSTATUS_SCSI_INVALID_BUS:            /* 0x0041 */
714                 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:       /* 0x0042 */
715                         sc->result = DID_BAD_TARGET << 16;
716                         break;
717
718                 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
719                         /* Spoof to SCSI Selection Timeout! */
720                         if (ioc->bus_type != FC)
721                                 sc->result = DID_NO_CONNECT << 16;
722                         /* else fibre, just stall until rescan event */
723                         else
724                                 sc->result = DID_REQUEUE << 16;
725
726                         if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
727                                 hd->sel_timeout[pScsiReq->TargetID]++;
728
729                         vdevice = sc->device->hostdata;
730                         if (!vdevice)
731                                 break;
732                         vtarget = vdevice->vtarget;
733                         if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) {
734                                 mptscsih_issue_sep_command(ioc, vtarget,
735                                     MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED);
736                                 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON;
737                         }
738                         break;
739
740                 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
741                         if ( ioc->bus_type == SAS ) {
742                                 u16 ioc_status =
743                                     le16_to_cpu(pScsiReply->IOCStatus);
744                                 if ((ioc_status &
745                                         MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
746                                         &&
747                                         ((log_info & SAS_LOGINFO_MASK) ==
748                                         SAS_LOGINFO_NEXUS_LOSS)) {
749                                                 VirtDevice *vdevice =
750                                                 sc->device->hostdata;
751
752                                             /* flag the device as being in
753                                              * device removal delay so we can
754                                              * notify the midlayer to hold off
755                                              * on timeout eh */
756                                                 if (vdevice && vdevice->
757                                                         vtarget &&
758                                                         vdevice->vtarget->
759                                                         raidVolume)
760                                                         printk(KERN_INFO
761                                                         "Skipping Raid Volume"
762                                                         "for inDMD\n");
763                                                 else if (vdevice &&
764                                                         vdevice->vtarget)
765                                                         vdevice->vtarget->
766                                                                 inDMD = 1;
767
768                                             sc->result =
769                                                     (DID_TRANSPORT_DISRUPTED
770                                                     << 16);
771                                             break;
772                                 }
773                         } else if (ioc->bus_type == FC) {
774                                 /*
775                                  * The FC IOC may kill a request for variety of
776                                  * reasons, some of which may be recovered by a
777                                  * retry, some which are unlikely to be
778                                  * recovered. Return DID_ERROR instead of
779                                  * DID_RESET to permit retry of the command,
780                                  * just not an infinite number of them
781                                  */
782                                 sc->result = DID_ERROR << 16;
783                                 break;
784                         }
785
786                         /*
787                          * Allow non-SAS & non-NEXUS_LOSS to drop into below code
788                          */
789
790                 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
791                         /* Linux handles an unsolicited DID_RESET better
792                          * than an unsolicited DID_ABORT.
793                          */
794                         sc->result = DID_RESET << 16;
795
796                 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
797                         if (ioc->bus_type == FC)
798                                 sc->result = DID_ERROR << 16;
799                         else
800                                 sc->result = DID_RESET << 16;
801                         break;
802
803                 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:      /* 0x0049 */
804                         scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
805                         if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
806                                 sc->result=DID_SOFT_ERROR << 16;
807                         else /* Sufficient data transfer occurred */
808                                 sc->result = (DID_OK << 16) | scsi_status;
809                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
810                             "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
811                             ioc->name, sc->result, sc->device->channel, sc->device->id));
812                         break;
813
814                 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
815                         /*
816                          *  Do upfront check for valid SenseData and give it
817                          *  precedence!
818                          */
819                         sc->result = (DID_OK << 16) | scsi_status;
820                         if (!(scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
821
822                                 /*
823                                  * For an Errata on LSI53C1030
824                                  * When the length of request data
825                                  * and transfer data are different
826                                  * with result of command (READ or VERIFY),
827                                  * DID_SOFT_ERROR is set.
828                                  */
829                                 if (ioc->bus_type == SPI) {
830                                         if ((pScsiReq->CDB[0] == READ_6  && ((pScsiReq->CDB[1] & 0x02) == 0)) ||
831                                             pScsiReq->CDB[0] == READ_10 ||
832                                             pScsiReq->CDB[0] == READ_12 ||
833                                                 (pScsiReq->CDB[0] == READ_16 &&
834                                                 ((pScsiReq->CDB[1] & 0x02) == 0)) ||
835                                             pScsiReq->CDB[0] == VERIFY  ||
836                                             pScsiReq->CDB[0] == VERIFY_16) {
837                                                 if (scsi_bufflen(sc) !=
838                                                         xfer_cnt) {
839                                                         sc->result =
840                                                         DID_SOFT_ERROR << 16;
841                                                     printk(KERN_WARNING "Errata"
842                                                     "on LSI53C1030 occurred."
843                                                     "sc->req_bufflen=0x%02x,"
844                                                     "xfer_cnt=0x%02x\n",
845                                                     scsi_bufflen(sc),
846                                                     xfer_cnt);
847                                                 }
848                                         }
849                                 }
850
851                                 if (xfer_cnt < sc->underflow) {
852                                         if (scsi_status == SAM_STAT_BUSY)
853                                                 sc->result = SAM_STAT_BUSY;
854                                         else
855                                                 sc->result = DID_SOFT_ERROR << 16;
856                                 }
857                                 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
858                                         /* What to do?
859                                         */
860                                         sc->result = DID_SOFT_ERROR << 16;
861                                 }
862                                 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
863                                         /*  Not real sure here either...  */
864                                         sc->result = DID_RESET << 16;
865                                 }
866                         }
867
868
869                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
870                             "  sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
871                             ioc->name, sc->underflow));
872                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
873                             "  ActBytesXferd=%02xh\n", ioc->name, xfer_cnt));
874
875                         /* Report Queue Full
876                          */
877                         if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
878                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
879
880                         break;
881
882                 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:           /* 0x0044 */
883                         scsi_set_resid(sc, 0);
884                 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
885                 case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
886                         sc->result = (DID_OK << 16) | scsi_status;
887                         if (scsi_state == 0) {
888                                 ;
889                         } else if (scsi_state &
890                             MPI_SCSI_STATE_AUTOSENSE_VALID) {
891
892                                 /*
893                                  * For potential trouble on LSI53C1030.
894                                  * (date:2007.xx.)
895                                  * It is checked whether the length of
896                                  * request data is equal to
897                                  * the length of transfer and residual.
898                                  * MEDIUM_ERROR is set by incorrect data.
899                                  */
900                                 if ((ioc->bus_type == SPI) &&
901                                         (sc->sense_buffer[2] & 0x20)) {
902                                         u32      difftransfer;
903                                         difftransfer =
904                                         sc->sense_buffer[3] << 24 |
905                                         sc->sense_buffer[4] << 16 |
906                                         sc->sense_buffer[5] << 8 |
907                                         sc->sense_buffer[6];
908                                         if (((sc->sense_buffer[3] & 0x80) ==
909                                                 0x80) && (scsi_bufflen(sc)
910                                                 != xfer_cnt)) {
911                                                 sc->sense_buffer[2] =
912                                                     MEDIUM_ERROR;
913                                                 sc->sense_buffer[12] = 0xff;
914                                                 sc->sense_buffer[13] = 0xff;
915                                                 printk(KERN_WARNING"Errata"
916                                                 "on LSI53C1030 occurred."
917                                                 "sc->req_bufflen=0x%02x,"
918                                                 "xfer_cnt=0x%02x\n" ,
919                                                 scsi_bufflen(sc),
920                                                 xfer_cnt);
921                                         }
922                                         if (((sc->sense_buffer[3] & 0x80)
923                                                 != 0x80) &&
924                                                 (scsi_bufflen(sc) !=
925                                                 xfer_cnt + difftransfer)) {
926                                                 sc->sense_buffer[2] =
927                                                         MEDIUM_ERROR;
928                                                 sc->sense_buffer[12] = 0xff;
929                                                 sc->sense_buffer[13] = 0xff;
930                                                 printk(KERN_WARNING
931                                                 "Errata on LSI53C1030 occurred"
932                                                 "sc->req_bufflen=0x%02x,"
933                                                 " xfer_cnt=0x%02x,"
934                                                 "difftransfer=0x%02x\n",
935                                                 scsi_bufflen(sc),
936                                                 xfer_cnt,
937                                                 difftransfer);
938                                         }
939                                 }
940
941                                 /*
942                                  * If running against circa 200003dd 909 MPT f/w,
943                                  * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
944                                  * (QUEUE_FULL) returned from device! --> get 0x0000?128
945                                  * and with SenseBytes set to 0.
946                                  */
947                                 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
948                                         mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
949
950                         }
951                         else if (scsi_state &
952                                  (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
953                            ) {
954                                 /*
955                                  * What to do?
956                                  */
957                                 sc->result = DID_SOFT_ERROR << 16;
958                         }
959                         else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
960                                 /*  Not real sure here either...  */
961                                 sc->result = DID_RESET << 16;
962                         }
963                         else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
964                                 /* Device Inq. data indicates that it supports
965                                  * QTags, but rejects QTag messages.
966                                  * This command completed OK.
967                                  *
968                                  * Not real sure here either so do nothing...  */
969                         }
970
971                         if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
972                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
973
974                         /* Add handling of:
975                          * Reservation Conflict, Busy,
976                          * Command Terminated, CHECK
977                          */
978                         break;
979
980                 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
981                         sc->result = DID_SOFT_ERROR << 16;
982                         break;
983
984                 case MPI_IOCSTATUS_INVALID_FUNCTION:            /* 0x0001 */
985                 case MPI_IOCSTATUS_INVALID_SGL:                 /* 0x0003 */
986                 case MPI_IOCSTATUS_INTERNAL_ERROR:              /* 0x0004 */
987                 case MPI_IOCSTATUS_RESERVED:                    /* 0x0005 */
988                 case MPI_IOCSTATUS_INVALID_FIELD:               /* 0x0007 */
989                 case MPI_IOCSTATUS_INVALID_STATE:               /* 0x0008 */
990                 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
991                 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:       /* 0x004A */
992                 default:
993                         /*
994                          * What to do?
995                          */
996                         sc->result = DID_SOFT_ERROR << 16;
997                         break;
998
999                 }       /* switch(status) */
1000
1001 #ifdef CONFIG_FUSION_LOGGING
1002                 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
1003                         mptscsih_info_scsiio(ioc, sc, pScsiReply);
1004 #endif
1005
1006         } /* end of address reply case */
1007 out:
1008         /* Unmap the DMA buffers, if any. */
1009         scsi_dma_unmap(sc);
1010
1011         sc->scsi_done(sc);              /* Issue the command callback */
1012
1013         /* Free Chain buffers */
1014         mptscsih_freeChainBuffers(ioc, req_idx);
1015         return 1;
1016 }
1017
1018 /*
1019  *      mptscsih_flush_running_cmds - For each command found, search
1020  *              Scsi_Host instance taskQ and reply to OS.
1021  *              Called only if recovering from a FW reload.
1022  *      @hd: Pointer to a SCSI HOST structure
1023  *
1024  *      Returns: None.
1025  *
1026  *      Must be called while new I/Os are being queued.
1027  */
1028 void
1029 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
1030 {
1031         MPT_ADAPTER *ioc = hd->ioc;
1032         struct scsi_cmnd *sc;
1033         SCSIIORequest_t *mf = NULL;
1034         int              ii;
1035         int              channel, id;
1036
1037         for (ii= 0; ii < ioc->req_depth; ii++) {
1038                 sc = mptscsih_getclear_scsi_lookup(ioc, ii);
1039                 if (!sc)
1040                         continue;
1041                 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1042                 if (!mf)
1043                         continue;
1044                 channel = mf->Bus;
1045                 id = mf->TargetID;
1046                 mptscsih_freeChainBuffers(ioc, ii);
1047                 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1048                 if ((unsigned char *)mf != sc->host_scribble)
1049                         continue;
1050                 scsi_dma_unmap(sc);
1051                 sc->result = DID_RESET << 16;
1052                 sc->host_scribble = NULL;
1053                 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
1054                     "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, "
1055                     "idx=%x\n", ioc->name, channel, id, sc, mf, ii));
1056                 sc->scsi_done(sc);
1057         }
1058 }
1059 EXPORT_SYMBOL(mptscsih_flush_running_cmds);
1060
1061 /*
1062  *      mptscsih_search_running_cmds - Delete any commands associated
1063  *              with the specified target and lun. Function called only
1064  *              when a lun is disable by mid-layer.
1065  *              Do NOT access the referenced scsi_cmnd structure or
1066  *              members. Will cause either a paging or NULL ptr error.
1067  *              (BUT, BUT, BUT, the code does reference it! - mdr)
1068  *      @hd: Pointer to a SCSI HOST structure
1069  *      @vdevice: per device private data
1070  *
1071  *      Returns: None.
1072  *
1073  *      Called from slave_destroy.
1074  */
1075 static void
1076 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
1077 {
1078         SCSIIORequest_t *mf = NULL;
1079         int              ii;
1080         struct scsi_cmnd *sc;
1081         struct scsi_lun  lun;
1082         MPT_ADAPTER *ioc = hd->ioc;
1083         unsigned long   flags;
1084
1085         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1086         for (ii = 0; ii < ioc->req_depth; ii++) {
1087                 if ((sc = ioc->ScsiLookup[ii]) != NULL) {
1088
1089                         mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1090                         if (mf == NULL)
1091                                 continue;
1092                         /* If the device is a hidden raid component, then its
1093                          * expected that the mf->function will be RAID_SCSI_IO
1094                          */
1095                         if (vdevice->vtarget->tflags &
1096                             MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
1097                             MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
1098                                 continue;
1099
1100                         int_to_scsilun(vdevice->lun, &lun);
1101                         if ((mf->Bus != vdevice->vtarget->channel) ||
1102                             (mf->TargetID != vdevice->vtarget->id) ||
1103                             memcmp(lun.scsi_lun, mf->LUN, 8))
1104                                 continue;
1105
1106                         if ((unsigned char *)mf != sc->host_scribble)
1107                                 continue;
1108                         ioc->ScsiLookup[ii] = NULL;
1109                         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1110                         mptscsih_freeChainBuffers(ioc, ii);
1111                         mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1112                         scsi_dma_unmap(sc);
1113                         sc->host_scribble = NULL;
1114                         sc->result = DID_NO_CONNECT << 16;
1115                         dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device,
1116                            MYIOC_s_FMT "completing cmds: fw_channel %d, "
1117                            "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name,
1118                            vdevice->vtarget->channel, vdevice->vtarget->id,
1119                            sc, mf, ii));
1120                         sc->scsi_done(sc);
1121                         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1122                 }
1123         }
1124         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1125         return;
1126 }
1127
1128 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1129
1130 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1131 /*
1132  *      mptscsih_report_queue_full - Report QUEUE_FULL status returned
1133  *      from a SCSI target device.
1134  *      @sc: Pointer to scsi_cmnd structure
1135  *      @pScsiReply: Pointer to SCSIIOReply_t
1136  *      @pScsiReq: Pointer to original SCSI request
1137  *
1138  *      This routine periodically reports QUEUE_FULL status returned from a
1139  *      SCSI target device.  It reports this to the console via kernel
1140  *      printk() API call, not more than once every 10 seconds.
1141  */
1142 static void
1143 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1144 {
1145         long time = jiffies;
1146         MPT_SCSI_HOST           *hd;
1147         MPT_ADAPTER     *ioc;
1148
1149         if (sc->device == NULL)
1150                 return;
1151         if (sc->device->host == NULL)
1152                 return;
1153         if ((hd = shost_priv(sc->device->host)) == NULL)
1154                 return;
1155         ioc = hd->ioc;
1156         if (time - hd->last_queue_full > 10 * HZ) {
1157                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n",
1158                                 ioc->name, 0, sc->device->id, sc->device->lun));
1159                 hd->last_queue_full = time;
1160         }
1161 }
1162
1163 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1164 /*
1165  *      mptscsih_remove - Removed scsi devices
1166  *      @pdev: Pointer to pci_dev structure
1167  *
1168  *
1169  */
1170 void
1171 mptscsih_remove(struct pci_dev *pdev)
1172 {
1173         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1174         struct Scsi_Host        *host = ioc->sh;
1175         MPT_SCSI_HOST           *hd;
1176         int sz1;
1177
1178         scsi_remove_host(host);
1179
1180         if((hd = shost_priv(host)) == NULL)
1181                 return;
1182
1183         mptscsih_shutdown(pdev);
1184
1185         sz1=0;
1186
1187         if (ioc->ScsiLookup != NULL) {
1188                 sz1 = ioc->req_depth * sizeof(void *);
1189                 kfree(ioc->ScsiLookup);
1190                 ioc->ScsiLookup = NULL;
1191         }
1192
1193         dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1194             "Free'd ScsiLookup (%d) memory\n",
1195             ioc->name, sz1));
1196
1197         kfree(hd->info_kbuf);
1198
1199         /* NULL the Scsi_Host pointer
1200          */
1201         ioc->sh = NULL;
1202
1203         scsi_host_put(host);
1204
1205         mpt_detach(pdev);
1206
1207 }
1208
1209 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1210 /*
1211  *      mptscsih_shutdown - reboot notifier
1212  *
1213  */
1214 void
1215 mptscsih_shutdown(struct pci_dev *pdev)
1216 {
1217 }
1218
1219 #ifdef CONFIG_PM
1220 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1221 /*
1222  *      mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1223  *
1224  *
1225  */
1226 int
1227 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1228 {
1229         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1230
1231         scsi_block_requests(ioc->sh);
1232         flush_scheduled_work();
1233         mptscsih_shutdown(pdev);
1234         return mpt_suspend(pdev,state);
1235 }
1236
1237 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1238 /*
1239  *      mptscsih_resume - Fusion MPT scsi driver resume routine.
1240  *
1241  *
1242  */
1243 int
1244 mptscsih_resume(struct pci_dev *pdev)
1245 {
1246         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1247         int rc;
1248
1249         rc = mpt_resume(pdev);
1250         scsi_unblock_requests(ioc->sh);
1251         return rc;
1252 }
1253
1254 #endif
1255
1256 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1257 /**
1258  *      mptscsih_info - Return information about MPT adapter
1259  *      @SChost: Pointer to Scsi_Host structure
1260  *
1261  *      (linux scsi_host_template.info routine)
1262  *
1263  *      Returns pointer to buffer where information was written.
1264  */
1265 const char *
1266 mptscsih_info(struct Scsi_Host *SChost)
1267 {
1268         MPT_SCSI_HOST *h;
1269         int size = 0;
1270
1271         h = shost_priv(SChost);
1272
1273         if (h) {
1274                 if (h->info_kbuf == NULL)
1275                         if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1276                                 return h->info_kbuf;
1277                 h->info_kbuf[0] = '\0';
1278
1279                 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1280                 h->info_kbuf[size-1] = '\0';
1281         }
1282
1283         return h->info_kbuf;
1284 }
1285
1286 struct info_str {
1287         char *buffer;
1288         int   length;
1289         int   offset;
1290         int   pos;
1291 };
1292
1293 static void
1294 mptscsih_copy_mem_info(struct info_str *info, char *data, int len)
1295 {
1296         if (info->pos + len > info->length)
1297                 len = info->length - info->pos;
1298
1299         if (info->pos + len < info->offset) {
1300                 info->pos += len;
1301                 return;
1302         }
1303
1304         if (info->pos < info->offset) {
1305                 data += (info->offset - info->pos);
1306                 len  -= (info->offset - info->pos);
1307         }
1308
1309         if (len > 0) {
1310                 memcpy(info->buffer + info->pos, data, len);
1311                 info->pos += len;
1312         }
1313 }
1314
1315 static int
1316 mptscsih_copy_info(struct info_str *info, char *fmt, ...)
1317 {
1318         va_list args;
1319         char buf[81];
1320         int len;
1321
1322         va_start(args, fmt);
1323         len = vsprintf(buf, fmt, args);
1324         va_end(args);
1325
1326         mptscsih_copy_mem_info(info, buf, len);
1327         return len;
1328 }
1329
1330 static int
1331 mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len)
1332 {
1333         struct info_str info;
1334
1335         info.buffer     = pbuf;
1336         info.length     = len;
1337         info.offset     = offset;
1338         info.pos        = 0;
1339
1340         mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name);
1341         mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1342         mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts);
1343         mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth);
1344
1345         return ((info.pos > info.offset) ? info.pos - info.offset : 0);
1346 }
1347
1348 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1349 /**
1350  *      mptscsih_proc_info - Return information about MPT adapter
1351  *      @host:   scsi host struct
1352  *      @buffer: if write, user data; if read, buffer for user
1353  *      @start: returns the buffer address
1354  *      @offset: if write, 0; if read, the current offset into the buffer from
1355  *               the previous read.
1356  *      @length: if write, return length;
1357  *      @func:   write = 1; read = 0
1358  *
1359  *      (linux scsi_host_template.info routine)
1360  */
1361 int
1362 mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
1363                         int length, int func)
1364 {
1365         MPT_SCSI_HOST   *hd = shost_priv(host);
1366         MPT_ADAPTER     *ioc = hd->ioc;
1367         int size = 0;
1368
1369         if (func) {
1370                 /*
1371                  * write is not supported
1372                  */
1373         } else {
1374                 if (start)
1375                         *start = buffer;
1376
1377                 size = mptscsih_host_info(ioc, buffer, offset, length);
1378         }
1379
1380         return size;
1381 }
1382
1383 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1384 #define ADD_INDEX_LOG(req_ent)  do { } while(0)
1385
1386 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1387 /**
1388  *      mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1389  *      @SCpnt: Pointer to scsi_cmnd structure
1390  *      @done: Pointer SCSI mid-layer IO completion function
1391  *
1392  *      (linux scsi_host_template.queuecommand routine)
1393  *      This is the primary SCSI IO start routine.  Create a MPI SCSIIORequest
1394  *      from a linux scsi_cmnd request and send it to the IOC.
1395  *
1396  *      Returns 0. (rtn value discarded by linux scsi mid-layer)
1397  */
1398 int
1399 mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1400 {
1401         MPT_SCSI_HOST           *hd;
1402         MPT_FRAME_HDR           *mf;
1403         SCSIIORequest_t         *pScsiReq;
1404         VirtDevice              *vdevice = SCpnt->device->hostdata;
1405         u32      datalen;
1406         u32      scsictl;
1407         u32      scsidir;
1408         u32      cmd_len;
1409         int      my_idx;
1410         int      ii;
1411         MPT_ADAPTER *ioc;
1412
1413         hd = shost_priv(SCpnt->device->host);
1414         ioc = hd->ioc;
1415         SCpnt->scsi_done = done;
1416
1417         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
1418                 ioc->name, SCpnt, done));
1419
1420         if (ioc->taskmgmt_quiesce_io)
1421                 return SCSI_MLQUEUE_HOST_BUSY;
1422
1423         /*
1424          *  Put together a MPT SCSI request...
1425          */
1426         if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1427                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1428                                 ioc->name));
1429                 return SCSI_MLQUEUE_HOST_BUSY;
1430         }
1431
1432         pScsiReq = (SCSIIORequest_t *) mf;
1433
1434         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1435
1436         ADD_INDEX_LOG(my_idx);
1437
1438         /*    TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1439          *    Seems we may receive a buffer (datalen>0) even when there
1440          *    will be no data transfer!  GRRRRR...
1441          */
1442         if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1443                 datalen = scsi_bufflen(SCpnt);
1444                 scsidir = MPI_SCSIIO_CONTROL_READ;      /* DATA IN  (host<--ioc<--dev) */
1445         } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1446                 datalen = scsi_bufflen(SCpnt);
1447                 scsidir = MPI_SCSIIO_CONTROL_WRITE;     /* DATA OUT (host-->ioc-->dev) */
1448         } else {
1449                 datalen = 0;
1450                 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1451         }
1452
1453         /* Default to untagged. Once a target structure has been allocated,
1454          * use the Inquiry data to determine if device supports tagged.
1455          */
1456         if (vdevice
1457             && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1458             && (SCpnt->device->tagged_supported)) {
1459                 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1460                 if (SCpnt->request && SCpnt->request->ioprio) {
1461                         if (((SCpnt->request->ioprio & 0x7) == 1) ||
1462                                 !(SCpnt->request->ioprio & 0x7))
1463                                 scsictl |= MPI_SCSIIO_CONTROL_HEADOFQ;
1464                 }
1465         } else
1466                 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1467
1468
1469         /* Use the above information to set up the message frame
1470          */
1471         pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1472         pScsiReq->Bus = vdevice->vtarget->channel;
1473         pScsiReq->ChainOffset = 0;
1474         if (vdevice->vtarget->tflags &  MPT_TARGET_FLAGS_RAID_COMPONENT)
1475                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1476         else
1477                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1478         pScsiReq->CDBLength = SCpnt->cmd_len;
1479         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1480         pScsiReq->Reserved = 0;
1481         pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1482         int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1483         pScsiReq->Control = cpu_to_le32(scsictl);
1484
1485         /*
1486          *  Write SCSI CDB into the message
1487          */
1488         cmd_len = SCpnt->cmd_len;
1489         for (ii=0; ii < cmd_len; ii++)
1490                 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1491
1492         for (ii=cmd_len; ii < 16; ii++)
1493                 pScsiReq->CDB[ii] = 0;
1494
1495         /* DataLength */
1496         pScsiReq->DataLength = cpu_to_le32(datalen);
1497
1498         /* SenseBuffer low address */
1499         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1500                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1501
1502         /* Now add the SG list
1503          * Always have a SGE even if null length.
1504          */
1505         if (datalen == 0) {
1506                 /* Add a NULL SGE */
1507                 ioc->add_sge((char *)&pScsiReq->SGL,
1508                         MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1509                         (dma_addr_t) -1);
1510         } else {
1511                 /* Add a 32 or 64 bit SGE */
1512                 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1513                         goto fail;
1514         }
1515
1516         SCpnt->host_scribble = (unsigned char *)mf;
1517         mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1518
1519         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1520         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1521                         ioc->name, SCpnt, mf, my_idx));
1522         DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1523         return 0;
1524
1525  fail:
1526         mptscsih_freeChainBuffers(ioc, my_idx);
1527         mpt_free_msg_frame(ioc, mf);
1528         return SCSI_MLQUEUE_HOST_BUSY;
1529 }
1530
1531 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1532 /*
1533  *      mptscsih_freeChainBuffers - Function to free chain buffers associated
1534  *      with a SCSI IO request
1535  *      @hd: Pointer to the MPT_SCSI_HOST instance
1536  *      @req_idx: Index of the SCSI IO request frame.
1537  *
1538  *      Called if SG chain buffer allocation fails and mptscsih callbacks.
1539  *      No return.
1540  */
1541 static void
1542 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1543 {
1544         MPT_FRAME_HDR *chain;
1545         unsigned long flags;
1546         int chain_idx;
1547         int next;
1548
1549         /* Get the first chain index and reset
1550          * tracker state.
1551          */
1552         chain_idx = ioc->ReqToChain[req_idx];
1553         ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1554
1555         while (chain_idx != MPT_HOST_NO_CHAIN) {
1556
1557                 /* Save the next chain buffer index */
1558                 next = ioc->ChainToChain[chain_idx];
1559
1560                 /* Free this chain buffer and reset
1561                  * tracker
1562                  */
1563                 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1564
1565                 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1566                                         + (chain_idx * ioc->req_sz));
1567
1568                 spin_lock_irqsave(&ioc->FreeQlock, flags);
1569                 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1570                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1571
1572                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1573                                 ioc->name, chain_idx));
1574
1575                 /* handle next */
1576                 chain_idx = next;
1577         }
1578         return;
1579 }
1580
1581 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1582 /*
1583  *      Reset Handling
1584  */
1585
1586 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1587 /**
1588  *      mptscsih_IssueTaskMgmt - Generic send Task Management function.
1589  *      @hd: Pointer to MPT_SCSI_HOST structure
1590  *      @type: Task Management type
1591  *      @channel: channel number for task management
1592  *      @id: Logical Target ID for reset (if appropriate)
1593  *      @lun: Logical Unit for reset (if appropriate)
1594  *      @ctx2abort: Context for the task to be aborted (if appropriate)
1595  *      @timeout: timeout for task management control
1596  *
1597  *      Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1598  *      or a non-interrupt thread.  In the former, must not call schedule().
1599  *
1600  *      Not all fields are meaningfull for all task types.
1601  *
1602  *      Returns 0 for SUCCESS, or FAILED.
1603  *
1604  **/
1605 int
1606 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun,
1607         int ctx2abort, ulong timeout)
1608 {
1609         MPT_FRAME_HDR   *mf;
1610         SCSITaskMgmt_t  *pScsiTm;
1611         int              ii;
1612         int              retval;
1613         MPT_ADAPTER     *ioc = hd->ioc;
1614         unsigned long    timeleft;
1615         u8               issue_hard_reset;
1616         u32              ioc_raw_state;
1617         unsigned long    time_count;
1618
1619         issue_hard_reset = 0;
1620         ioc_raw_state = mpt_GetIocState(ioc, 0);
1621
1622         if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1623                 printk(MYIOC_s_WARN_FMT
1624                         "TaskMgmt type=%x: IOC Not operational (0x%x)!\n",
1625                         ioc->name, type, ioc_raw_state);
1626                 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
1627                     ioc->name, __func__);
1628                 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1629                         printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset "
1630                             "FAILED!!\n", ioc->name);
1631                 return 0;
1632         }
1633
1634         /* DOORBELL ACTIVE check is not required if
1635         *  MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported.
1636         */
1637
1638         if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q)
1639                  && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) &&
1640                 (ioc_raw_state & MPI_DOORBELL_ACTIVE)) {
1641                 printk(MYIOC_s_WARN_FMT
1642                         "TaskMgmt type=%x: ioc_state: "
1643                         "DOORBELL_ACTIVE (0x%x)!\n",
1644                         ioc->name, type, ioc_raw_state);
1645                 return FAILED;
1646         }
1647
1648         mutex_lock(&ioc->taskmgmt_cmds.mutex);
1649         if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
1650                 mf = NULL;
1651                 retval = FAILED;
1652                 goto out;
1653         }
1654
1655         /* Return Fail to calling function if no message frames available.
1656          */
1657         if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1658                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1659                         "TaskMgmt no msg frames!!\n", ioc->name));
1660                 retval = FAILED;
1661                 mpt_clear_taskmgmt_in_progress_flag(ioc);
1662                 goto out;
1663         }
1664         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
1665                         ioc->name, mf));
1666
1667         /* Format the Request
1668          */
1669         pScsiTm = (SCSITaskMgmt_t *) mf;
1670         pScsiTm->TargetID = id;
1671         pScsiTm->Bus = channel;
1672         pScsiTm->ChainOffset = 0;
1673         pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1674
1675         pScsiTm->Reserved = 0;
1676         pScsiTm->TaskType = type;
1677         pScsiTm->Reserved1 = 0;
1678         pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1679                     ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1680
1681         int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1682
1683         for (ii=0; ii < 7; ii++)
1684                 pScsiTm->Reserved2[ii] = 0;
1685
1686         pScsiTm->TaskMsgContext = ctx2abort;
1687
1688         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) "
1689                 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort,
1690                 type, timeout));
1691
1692         DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1693
1694         INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1695         time_count = jiffies;
1696         if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1697             (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1698                 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1699         else {
1700                 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1701                         sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1702                 if (retval) {
1703                         dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1704                                 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n",
1705                                 ioc->name, mf, retval));
1706                         mpt_free_msg_frame(ioc, mf);
1707                         mpt_clear_taskmgmt_in_progress_flag(ioc);
1708                         goto out;
1709                 }
1710         }
1711
1712         timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
1713                 timeout*HZ);
1714         if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
1715                 retval = FAILED;
1716                 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
1717                     "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf));
1718                 mpt_clear_taskmgmt_in_progress_flag(ioc);
1719                 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
1720                         goto out;
1721                 issue_hard_reset = 1;
1722                 goto out;
1723         }
1724
1725         retval = mptscsih_taskmgmt_reply(ioc, type,
1726             (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply);
1727
1728         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1729             "TaskMgmt completed (%d seconds)\n",
1730             ioc->name, jiffies_to_msecs(jiffies - time_count)/1000));
1731
1732  out:
1733
1734         CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1735         if (issue_hard_reset) {
1736                 printk(MYIOC_s_WARN_FMT
1737                        "Issuing Reset from %s!! doorbell=0x%08x\n",
1738                        ioc->name, __func__, mpt_GetIocState(ioc, 0));
1739                 retval = (ioc->bus_type == SAS) ?
1740                         mpt_HardResetHandler(ioc, CAN_SLEEP) :
1741                         mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1742                 mpt_free_msg_frame(ioc, mf);
1743         }
1744
1745         retval = (retval == 0) ? 0 : FAILED;
1746         mutex_unlock(&ioc->taskmgmt_cmds.mutex);
1747         return retval;
1748 }
1749 EXPORT_SYMBOL(mptscsih_IssueTaskMgmt);
1750
1751 static int
1752 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1753 {
1754         switch (ioc->bus_type) {
1755         case FC:
1756                 return 40;
1757         case SAS:
1758                 return 30;
1759         case SPI:
1760         default:
1761                 return 10;
1762         }
1763 }
1764
1765 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1766 /**
1767  *      mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1768  *      @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1769  *
1770  *      (linux scsi_host_template.eh_abort_handler routine)
1771  *
1772  *      Returns SUCCESS or FAILED.
1773  **/
1774 int
1775 mptscsih_abort(struct scsi_cmnd * SCpnt)
1776 {
1777         MPT_SCSI_HOST   *hd;
1778         MPT_FRAME_HDR   *mf;
1779         u32              ctx2abort;
1780         int              scpnt_idx;
1781         int              retval;
1782         VirtDevice       *vdevice;
1783         MPT_ADAPTER     *ioc;
1784
1785         /* If we can't locate our host adapter structure, return FAILED status.
1786          */
1787         if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1788                 SCpnt->result = DID_RESET << 16;
1789                 SCpnt->scsi_done(SCpnt);
1790                 printk(KERN_ERR MYNAM ": task abort: "
1791                     "can't locate host! (sc=%p)\n", SCpnt);
1792                 return FAILED;
1793         }
1794
1795         ioc = hd->ioc;
1796         printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1797                ioc->name, SCpnt);
1798         scsi_print_command(SCpnt);
1799
1800         vdevice = SCpnt->device->hostdata;
1801         if (!vdevice || !vdevice->vtarget) {
1802                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1803                     "task abort: device has been deleted (sc=%p)\n",
1804                     ioc->name, SCpnt));
1805                 SCpnt->result = DID_NO_CONNECT << 16;
1806                 SCpnt->scsi_done(SCpnt);
1807                 retval = SUCCESS;
1808                 goto out;
1809         }
1810
1811         /* Task aborts are not supported for hidden raid components.
1812          */
1813         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1814                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1815                     "task abort: hidden raid component (sc=%p)\n",
1816                     ioc->name, SCpnt));
1817                 SCpnt->result = DID_RESET << 16;
1818                 retval = FAILED;
1819                 goto out;
1820         }
1821
1822         /* Task aborts are not supported for volumes.
1823          */
1824         if (vdevice->vtarget->raidVolume) {
1825                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1826                     "task abort: raid volume (sc=%p)\n",
1827                     ioc->name, SCpnt));
1828                 SCpnt->result = DID_RESET << 16;
1829                 retval = FAILED;
1830                 goto out;
1831         }
1832
1833         /* Find this command
1834          */
1835         if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1836                 /* Cmd not found in ScsiLookup.
1837                  * Do OS callback.
1838                  */
1839                 SCpnt->result = DID_RESET << 16;
1840                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1841                    "Command not in the active list! (sc=%p)\n", ioc->name,
1842                    SCpnt));
1843                 retval = SUCCESS;
1844                 goto out;
1845         }
1846
1847         if (ioc->timeouts < -1)
1848                 ioc->timeouts++;
1849
1850         if (mpt_fwfault_debug)
1851                 mpt_halt_firmware(ioc);
1852
1853         /* Most important!  Set TaskMsgContext to SCpnt's MsgContext!
1854          * (the IO to be ABORT'd)
1855          *
1856          * NOTE: Since we do not byteswap MsgContext, we do not
1857          *       swap it here either.  It is an opaque cookie to
1858          *       the controller, so it does not matter. -DaveM
1859          */
1860         mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1861         ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1862         retval = mptscsih_IssueTaskMgmt(hd,
1863                          MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1864                          vdevice->vtarget->channel,
1865                          vdevice->vtarget->id, vdevice->lun,
1866                          ctx2abort, mptscsih_get_tm_timeout(ioc));
1867
1868         if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) {
1869                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1870                     "task abort: command still in active list! (sc=%p)\n",
1871                     ioc->name, SCpnt));
1872                 retval = FAILED;
1873         } else {
1874                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1875                     "task abort: command cleared from active list! (sc=%p)\n",
1876                     ioc->name, SCpnt));
1877                 retval = SUCCESS;
1878         }
1879
1880  out:
1881         printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n",
1882             ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval,
1883             SCpnt);
1884
1885         return retval;
1886 }
1887
1888 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1889 /**
1890  *      mptscsih_dev_reset - Perform a SCSI TARGET_RESET!  new_eh variant
1891  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1892  *
1893  *      (linux scsi_host_template.eh_dev_reset_handler routine)
1894  *
1895  *      Returns SUCCESS or FAILED.
1896  **/
1897 int
1898 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1899 {
1900         MPT_SCSI_HOST   *hd;
1901         int              retval;
1902         VirtDevice       *vdevice;
1903         MPT_ADAPTER     *ioc;
1904
1905         /* If we can't locate our host adapter structure, return FAILED status.
1906          */
1907         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1908                 printk(KERN_ERR MYNAM ": target reset: "
1909                    "Can't locate host! (sc=%p)\n", SCpnt);
1910                 return FAILED;
1911         }
1912
1913         ioc = hd->ioc;
1914         printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1915                ioc->name, SCpnt);
1916         scsi_print_command(SCpnt);
1917
1918         vdevice = SCpnt->device->hostdata;
1919         if (!vdevice || !vdevice->vtarget) {
1920                 retval = 0;
1921                 goto out;
1922         }
1923
1924         /* Target reset to hidden raid component is not supported
1925          */
1926         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1927                 retval = FAILED;
1928                 goto out;
1929         }
1930
1931         retval = mptscsih_IssueTaskMgmt(hd,
1932                                 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1933                                 vdevice->vtarget->channel,
1934                                 vdevice->vtarget->id, 0, 0,
1935                                 mptscsih_get_tm_timeout(ioc));
1936
1937  out:
1938         printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1939             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1940
1941         if (retval == 0)
1942                 return SUCCESS;
1943         else
1944                 return FAILED;
1945 }
1946
1947
1948 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1949 /**
1950  *      mptscsih_bus_reset - Perform a SCSI BUS_RESET!  new_eh variant
1951  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1952  *
1953  *      (linux scsi_host_template.eh_bus_reset_handler routine)
1954  *
1955  *      Returns SUCCESS or FAILED.
1956  **/
1957 int
1958 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1959 {
1960         MPT_SCSI_HOST   *hd;
1961         int              retval;
1962         VirtDevice       *vdevice;
1963         MPT_ADAPTER     *ioc;
1964
1965         /* If we can't locate our host adapter structure, return FAILED status.
1966          */
1967         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1968                 printk(KERN_ERR MYNAM ": bus reset: "
1969                    "Can't locate host! (sc=%p)\n", SCpnt);
1970                 return FAILED;
1971         }
1972
1973         ioc = hd->ioc;
1974         printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1975                ioc->name, SCpnt);
1976         scsi_print_command(SCpnt);
1977
1978         if (ioc->timeouts < -1)
1979                 ioc->timeouts++;
1980
1981         vdevice = SCpnt->device->hostdata;
1982         if (!vdevice || !vdevice->vtarget)
1983                 return SUCCESS;
1984         retval = mptscsih_IssueTaskMgmt(hd,
1985                                         MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1986                                         vdevice->vtarget->channel, 0, 0, 0,
1987                                         mptscsih_get_tm_timeout(ioc));
1988
1989         printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1990             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1991
1992         if (retval == 0)
1993                 return SUCCESS;
1994         else
1995                 return FAILED;
1996 }
1997
1998 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1999 /**
2000  *      mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
2001  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
2002  *
2003  *      (linux scsi_host_template.eh_host_reset_handler routine)
2004  *
2005  *      Returns SUCCESS or FAILED.
2006  */
2007 int
2008 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
2009 {
2010         MPT_SCSI_HOST *  hd;
2011         int              status = SUCCESS;
2012         MPT_ADAPTER     *ioc;
2013         int             retval;
2014
2015         /*  If we can't locate the host to reset, then we failed. */
2016         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
2017                 printk(KERN_ERR MYNAM ": host reset: "
2018                     "Can't locate host! (sc=%p)\n", SCpnt);
2019                 return FAILED;
2020         }
2021
2022         /* make sure we have no outstanding commands at this stage */
2023         mptscsih_flush_running_cmds(hd);
2024
2025         ioc = hd->ioc;
2026         printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
2027             ioc->name, SCpnt);
2028
2029         /*  If our attempts to reset the host failed, then return a failed
2030          *  status.  The host will be taken off line by the SCSI mid-layer.
2031          */
2032     retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
2033         if (retval < 0)
2034                 status = FAILED;
2035         else
2036                 status = SUCCESS;
2037
2038         printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
2039             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
2040
2041         return status;
2042 }
2043
2044 static int
2045 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
2046         SCSITaskMgmtReply_t *pScsiTmReply)
2047 {
2048         u16                      iocstatus;
2049         u32                      termination_count;
2050         int                      retval;
2051
2052         if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
2053                 retval = FAILED;
2054                 goto out;
2055         }
2056
2057         DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
2058
2059         iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2060         termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
2061
2062         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2063             "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n"
2064             "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n"
2065             "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus,
2066             pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus),
2067             le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode,
2068             termination_count));
2069
2070         if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
2071             pScsiTmReply->ResponseCode)
2072                 mptscsih_taskmgmt_response_code(ioc,
2073                     pScsiTmReply->ResponseCode);
2074
2075         if (iocstatus == MPI_IOCSTATUS_SUCCESS) {
2076                 retval = 0;
2077                 goto out;
2078         }
2079
2080         retval = FAILED;
2081         if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
2082                 if (termination_count == 1)
2083                         retval = 0;
2084                 goto out;
2085         }
2086
2087         if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
2088            iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
2089                 retval = 0;
2090
2091  out:
2092         return retval;
2093 }
2094
2095 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2096 void
2097 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2098 {
2099         char *desc;
2100
2101         switch (response_code) {
2102         case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2103                 desc = "The task completed.";
2104                 break;
2105         case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2106                 desc = "The IOC received an invalid frame status.";
2107                 break;
2108         case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2109                 desc = "The task type is not supported.";
2110                 break;
2111         case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2112                 desc = "The requested task failed.";
2113                 break;
2114         case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2115                 desc = "The task completed successfully.";
2116                 break;
2117         case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2118                 desc = "The LUN request is invalid.";
2119                 break;
2120         case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2121                 desc = "The task is in the IOC queue and has not been sent to target.";
2122                 break;
2123         default:
2124                 desc = "unknown";
2125                 break;
2126         }
2127         printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2128                 ioc->name, response_code, desc);
2129 }
2130 EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
2131
2132 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2133 /**
2134  *      mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2135  *      @ioc: Pointer to MPT_ADAPTER structure
2136  *      @mf: Pointer to SCSI task mgmt request frame
2137  *      @mr: Pointer to SCSI task mgmt reply frame
2138  *
2139  *      This routine is called from mptbase.c::mpt_interrupt() at the completion
2140  *      of any SCSI task management request.
2141  *      This routine is registered with the MPT (base) driver at driver
2142  *      load/init time via the mpt_register() API call.
2143  *
2144  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2145  **/
2146 int
2147 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf,
2148         MPT_FRAME_HDR *mr)
2149 {
2150         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2151                 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr));
2152
2153         ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2154
2155         if (!mr)
2156                 goto out;
2157
2158         ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2159         memcpy(ioc->taskmgmt_cmds.reply, mr,
2160             min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
2161  out:
2162         if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
2163                 mpt_clear_taskmgmt_in_progress_flag(ioc);
2164                 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2165                 complete(&ioc->taskmgmt_cmds.done);
2166                 if (ioc->bus_type == SAS)
2167                         ioc->schedule_target_reset(ioc);
2168                 return 1;
2169         }
2170         return 0;
2171 }
2172
2173 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2174 /*
2175  *      This is anyones guess quite frankly.
2176  */
2177 int
2178 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2179                 sector_t capacity, int geom[])
2180 {
2181         int             heads;
2182         int             sectors;
2183         sector_t        cylinders;
2184         ulong           dummy;
2185
2186         heads = 64;
2187         sectors = 32;
2188
2189         dummy = heads * sectors;
2190         cylinders = capacity;
2191         sector_div(cylinders,dummy);
2192
2193         /*
2194          * Handle extended translation size for logical drives
2195          * > 1Gb
2196          */
2197         if ((ulong)capacity >= 0x200000) {
2198                 heads = 255;
2199                 sectors = 63;
2200                 dummy = heads * sectors;
2201                 cylinders = capacity;
2202                 sector_div(cylinders,dummy);
2203         }
2204
2205         /* return result */
2206         geom[0] = heads;
2207         geom[1] = sectors;
2208         geom[2] = cylinders;
2209
2210         return 0;
2211 }
2212
2213 /* Search IOC page 3 to determine if this is hidden physical disk
2214  *
2215  */
2216 int
2217 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2218 {
2219         struct inactive_raid_component_info *component_info;
2220         int i, j;
2221         RaidPhysDiskPage1_t *phys_disk;
2222         int rc = 0;
2223         int num_paths;
2224
2225         if (!ioc->raid_data.pIocPg3)
2226                 goto out;
2227         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2228                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2229                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2230                         rc = 1;
2231                         goto out;
2232                 }
2233         }
2234
2235         if (ioc->bus_type != SAS)
2236                 goto out;
2237
2238         /*
2239          * Check if dual path
2240          */
2241         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2242                 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2243                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2244                 if (num_paths < 2)
2245                         continue;
2246                 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2247                    (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2248                 if (!phys_disk)
2249                         continue;
2250                 if ((mpt_raid_phys_disk_pg1(ioc,
2251                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2252                     phys_disk))) {
2253                         kfree(phys_disk);
2254                         continue;
2255                 }
2256                 for (j = 0; j < num_paths; j++) {
2257                         if ((phys_disk->Path[j].Flags &
2258                             MPI_RAID_PHYSDISK1_FLAG_INVALID))
2259                                 continue;
2260                         if ((phys_disk->Path[j].Flags &
2261                             MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2262                                 continue;
2263                         if ((id == phys_disk->Path[j].PhysDiskID) &&
2264                             (channel == phys_disk->Path[j].PhysDiskBus)) {
2265                                 rc = 1;
2266                                 kfree(phys_disk);
2267                                 goto out;
2268                         }
2269                 }
2270                 kfree(phys_disk);
2271         }
2272
2273
2274         /*
2275          * Check inactive list for matching phys disks
2276          */
2277         if (list_empty(&ioc->raid_data.inactive_list))
2278                 goto out;
2279
2280         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2281         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2282             list) {
2283                 if ((component_info->d.PhysDiskID == id) &&
2284                     (component_info->d.PhysDiskBus == channel))
2285                         rc = 1;
2286         }
2287         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2288
2289  out:
2290         return rc;
2291 }
2292 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2293
2294 u8
2295 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2296 {
2297         struct inactive_raid_component_info *component_info;
2298         int i, j;
2299         RaidPhysDiskPage1_t *phys_disk;
2300         int rc = -ENXIO;
2301         int num_paths;
2302
2303         if (!ioc->raid_data.pIocPg3)
2304                 goto out;
2305         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2306                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2307                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2308                         rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2309                         goto out;
2310                 }
2311         }
2312
2313         if (ioc->bus_type != SAS)
2314                 goto out;
2315
2316         /*
2317          * Check if dual path
2318          */
2319         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2320                 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2321                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2322                 if (num_paths < 2)
2323                         continue;
2324                 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2325                    (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2326                 if (!phys_disk)
2327                         continue;
2328                 if ((mpt_raid_phys_disk_pg1(ioc,
2329                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2330                     phys_disk))) {
2331                         kfree(phys_disk);
2332                         continue;
2333                 }
2334                 for (j = 0; j < num_paths; j++) {
2335                         if ((phys_disk->Path[j].Flags &
2336                             MPI_RAID_PHYSDISK1_FLAG_INVALID))
2337                                 continue;
2338                         if ((phys_disk->Path[j].Flags &
2339                             MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2340                                 continue;
2341                         if ((id == phys_disk->Path[j].PhysDiskID) &&
2342                             (channel == phys_disk->Path[j].PhysDiskBus)) {
2343                                 rc = phys_disk->PhysDiskNum;
2344                                 kfree(phys_disk);
2345                                 goto out;
2346                         }
2347                 }
2348                 kfree(phys_disk);
2349         }
2350
2351         /*
2352          * Check inactive list for matching phys disks
2353          */
2354         if (list_empty(&ioc->raid_data.inactive_list))
2355                 goto out;
2356
2357         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2358         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2359             list) {
2360                 if ((component_info->d.PhysDiskID == id) &&
2361                     (component_info->d.PhysDiskBus == channel))
2362                         rc = component_info->d.PhysDiskNum;
2363         }
2364         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2365
2366  out:
2367         return rc;
2368 }
2369 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2370
2371 /*
2372  *      OS entry point to allow for host driver to free allocated memory
2373  *      Called if no device present or device being unloaded
2374  */
2375 void
2376 mptscsih_slave_destroy(struct scsi_device *sdev)
2377 {
2378         struct Scsi_Host        *host = sdev->host;
2379         MPT_SCSI_HOST           *hd = shost_priv(host);
2380         VirtTarget              *vtarget;
2381         VirtDevice              *vdevice;
2382         struct scsi_target      *starget;
2383
2384         starget = scsi_target(sdev);
2385         vtarget = starget->hostdata;
2386         vdevice = sdev->hostdata;
2387         if (!vdevice)
2388                 return;
2389
2390         mptscsih_search_running_cmds(hd, vdevice);
2391         vtarget->num_luns--;
2392         mptscsih_synchronize_cache(hd, vdevice);
2393         kfree(vdevice);
2394         sdev->hostdata = NULL;
2395 }
2396
2397 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2398 /*
2399  *      mptscsih_change_queue_depth - This function will set a devices queue depth
2400  *      @sdev: per scsi_device pointer
2401  *      @qdepth: requested queue depth
2402  *      @reason: calling context
2403  *
2404  *      Adding support for new 'change_queue_depth' api.
2405 */
2406 int
2407 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
2408 {
2409         MPT_SCSI_HOST           *hd = shost_priv(sdev->host);
2410         VirtTarget              *vtarget;
2411         struct scsi_target      *starget;
2412         int                     max_depth;
2413         int                     tagged;
2414         MPT_ADAPTER             *ioc = hd->ioc;
2415
2416         starget = scsi_target(sdev);
2417         vtarget = starget->hostdata;
2418
2419         if (reason != SCSI_QDEPTH_DEFAULT)
2420                 return -EOPNOTSUPP;
2421
2422         if (ioc->bus_type == SPI) {
2423                 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2424                         max_depth = 1;
2425                 else if (sdev->type == TYPE_DISK &&
2426                          vtarget->minSyncFactor <= MPT_ULTRA160)
2427                         max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2428                 else
2429                         max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2430         } else
2431                  max_depth = ioc->sh->can_queue;
2432
2433         if (!sdev->tagged_supported)
2434                 max_depth = 1;
2435
2436         if (qdepth > max_depth)
2437                 qdepth = max_depth;
2438         if (qdepth == 1)
2439                 tagged = 0;
2440         else
2441                 tagged = MSG_SIMPLE_TAG;
2442
2443         scsi_adjust_queue_depth(sdev, tagged, qdepth);
2444         return sdev->queue_depth;
2445 }
2446
2447 /*
2448  *      OS entry point to adjust the queue_depths on a per-device basis.
2449  *      Called once per device the bus scan. Use it to force the queue_depth
2450  *      member to 1 if a device does not support Q tags.
2451  *      Return non-zero if fails.
2452  */
2453 int
2454 mptscsih_slave_configure(struct scsi_device *sdev)
2455 {
2456         struct Scsi_Host        *sh = sdev->host;
2457         VirtTarget              *vtarget;
2458         VirtDevice              *vdevice;
2459         struct scsi_target      *starget;
2460         MPT_SCSI_HOST           *hd = shost_priv(sh);
2461         MPT_ADAPTER             *ioc = hd->ioc;
2462
2463         starget = scsi_target(sdev);
2464         vtarget = starget->hostdata;
2465         vdevice = sdev->hostdata;
2466
2467         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2468                 "device @ %p, channel=%d, id=%d, lun=%d\n",
2469                 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2470         if (ioc->bus_type == SPI)
2471                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2472                     "sdtr %d wdtr %d ppr %d inq length=%d\n",
2473                     ioc->name, sdev->sdtr, sdev->wdtr,
2474                     sdev->ppr, sdev->inquiry_len));
2475
2476         vdevice->configured_lun = 1;
2477
2478         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2479                 "Queue depth=%d, tflags=%x\n",
2480                 ioc->name, sdev->queue_depth, vtarget->tflags));
2481
2482         if (ioc->bus_type == SPI)
2483                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2484                     "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2485                     ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2486                     vtarget->minSyncFactor));
2487
2488         mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH,
2489                                     SCSI_QDEPTH_DEFAULT);
2490         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2491                 "tagged %d, simple %d, ordered %d\n",
2492                 ioc->name,sdev->tagged_supported, sdev->simple_tags,
2493                 sdev->ordered_tags));
2494
2495         blk_queue_dma_alignment (sdev->request_queue, 512 - 1);
2496
2497         return 0;
2498 }
2499
2500 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2501 /*
2502  *  Private routines...
2503  */
2504
2505 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2506 /* Utility function to copy sense data from the scsi_cmnd buffer
2507  * to the FC and SCSI target structures.
2508  *
2509  */
2510 static void
2511 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2512 {
2513         VirtDevice      *vdevice;
2514         SCSIIORequest_t *pReq;
2515         u32              sense_count = le32_to_cpu(pScsiReply->SenseCount);
2516         MPT_ADAPTER     *ioc = hd->ioc;
2517
2518         /* Get target structure
2519          */
2520         pReq = (SCSIIORequest_t *) mf;
2521         vdevice = sc->device->hostdata;
2522
2523         if (sense_count) {
2524                 u8 *sense_data;
2525                 int req_index;
2526
2527                 /* Copy the sense received into the scsi command block. */
2528                 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2529                 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2530                 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2531
2532                 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2533                  */
2534                 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2535                         if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2536                                 int idx;
2537
2538                                 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2539                                 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2540                                 ioc->events[idx].eventContext = ioc->eventContext;
2541
2542                                 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2543                                         (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2544                                         (sc->device->channel << 8) | sc->device->id;
2545
2546                                 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2547
2548                                 ioc->eventContext++;
2549                                 if (ioc->pcidev->vendor ==
2550                                     PCI_VENDOR_ID_IBM) {
2551                                         mptscsih_issue_sep_command(ioc,
2552                                             vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2553                                         vdevice->vtarget->tflags |=
2554                                             MPT_TARGET_FLAGS_LED_ON;
2555                                 }
2556                         }
2557                 }
2558         } else {
2559                 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2560                                 ioc->name));
2561         }
2562 }
2563
2564 /**
2565  * mptscsih_get_scsi_lookup - retrieves scmd entry
2566  * @ioc: Pointer to MPT_ADAPTER structure
2567  * @i: index into the array
2568  *
2569  * Returns the scsi_cmd pointer
2570  */
2571 struct scsi_cmnd *
2572 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2573 {
2574         unsigned long   flags;
2575         struct scsi_cmnd *scmd;
2576
2577         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2578         scmd = ioc->ScsiLookup[i];
2579         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2580
2581         return scmd;
2582 }
2583 EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
2584
2585 /**
2586  * mptscsih_getclear_scsi_lookup -  retrieves and clears scmd entry from ScsiLookup[] array list
2587  * @ioc: Pointer to MPT_ADAPTER structure
2588  * @i: index into the array
2589  *
2590  * Returns the scsi_cmd pointer
2591  *
2592  **/
2593 static struct scsi_cmnd *
2594 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2595 {
2596         unsigned long   flags;
2597         struct scsi_cmnd *scmd;
2598
2599         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2600         scmd = ioc->ScsiLookup[i];
2601         ioc->ScsiLookup[i] = NULL;
2602         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2603
2604         return scmd;
2605 }
2606
2607 /**
2608  * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list
2609  *
2610  * @ioc: Pointer to MPT_ADAPTER structure
2611  * @i: index into the array
2612  * @scmd: scsi_cmnd pointer
2613  *
2614  **/
2615 static void
2616 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2617 {
2618         unsigned long   flags;
2619
2620         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2621         ioc->ScsiLookup[i] = scmd;
2622         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2623 }
2624
2625 /**
2626  * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2627  * @ioc: Pointer to MPT_ADAPTER structure
2628  * @sc: scsi_cmnd pointer
2629  */
2630 static int
2631 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2632 {
2633         unsigned long   flags;
2634         int i, index=-1;
2635
2636         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2637         for (i = 0; i < ioc->req_depth; i++) {
2638                 if (ioc->ScsiLookup[i] == sc) {
2639                         index = i;
2640                         goto out;
2641                 }
2642         }
2643
2644  out:
2645         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2646         return index;
2647 }
2648
2649 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2650 int
2651 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2652 {
2653         MPT_SCSI_HOST   *hd;
2654
2655         if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2656                 return 0;
2657
2658         hd = shost_priv(ioc->sh);
2659         switch (reset_phase) {
2660         case MPT_IOC_SETUP_RESET:
2661                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2662                     "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
2663                 break;
2664         case MPT_IOC_PRE_RESET:
2665                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2666                     "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
2667                 mptscsih_flush_running_cmds(hd);
2668                 break;
2669         case MPT_IOC_POST_RESET:
2670                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2671                     "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
2672                 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) {
2673                         ioc->internal_cmds.status |=
2674                                 MPT_MGMT_STATUS_DID_IOCRESET;
2675                         complete(&ioc->internal_cmds.done);
2676                 }
2677                 break;
2678         default:
2679                 break;
2680         }
2681         return 1;               /* currently means nothing really */
2682 }
2683
2684 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2685 int
2686 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2687 {
2688         u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2689
2690         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2691                 "MPT event (=%02Xh) routed to SCSI host driver!\n",
2692                 ioc->name, event));
2693
2694         if ((event == MPI_EVENT_IOC_BUS_RESET ||
2695             event == MPI_EVENT_EXT_BUS_RESET) &&
2696             (ioc->bus_type == SPI) && (ioc->soft_resets < -1))
2697                         ioc->soft_resets++;
2698
2699         return 1;               /* currently means nothing really */
2700 }
2701
2702 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2703 /*
2704  *  Bus Scan and Domain Validation functionality ...
2705  */
2706
2707 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2708 /*
2709  *      mptscsih_scandv_complete - Scan and DV callback routine registered
2710  *      to Fustion MPT (base) driver.
2711  *
2712  *      @ioc: Pointer to MPT_ADAPTER structure
2713  *      @mf: Pointer to original MPT request frame
2714  *      @mr: Pointer to MPT reply frame (NULL if TurboReply)
2715  *
2716  *      This routine is called from mpt.c::mpt_interrupt() at the completion
2717  *      of any SCSI IO request.
2718  *      This routine is registered with the Fusion MPT (base) driver at driver
2719  *      load/init time via the mpt_register() API call.
2720  *
2721  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2722  *
2723  *      Remark: Sets a completion code and (possibly) saves sense data
2724  *      in the IOC member localReply structure.
2725  *      Used ONLY for DV and other internal commands.
2726  */
2727 int
2728 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2729                                 MPT_FRAME_HDR *reply)
2730 {
2731         SCSIIORequest_t *pReq;
2732         SCSIIOReply_t   *pReply;
2733         u8               cmd;
2734         u16              req_idx;
2735         u8      *sense_data;
2736         int              sz;
2737
2738         ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2739         ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD;
2740         if (!reply)
2741                 goto out;
2742
2743         pReply = (SCSIIOReply_t *) reply;
2744         pReq = (SCSIIORequest_t *) req;
2745         ioc->internal_cmds.completion_code =
2746             mptscsih_get_completion_code(ioc, req, reply);
2747         ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2748         memcpy(ioc->internal_cmds.reply, reply,
2749             min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength));
2750         cmd = reply->u.hdr.Function;
2751         if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
2752             (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) &&
2753             (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
2754                 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
2755                 sense_data = ((u8 *)ioc->sense_buf_pool +
2756                     (req_idx * MPT_SENSE_BUFFER_ALLOC));
2757                 sz = min_t(int, pReq->SenseBufferLength,
2758                     MPT_SENSE_BUFFER_ALLOC);
2759                 memcpy(ioc->internal_cmds.sense, sense_data, sz);
2760         }
2761  out:
2762         if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING))
2763                 return 0;
2764         ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2765         complete(&ioc->internal_cmds.done);
2766         return 1;
2767 }
2768
2769
2770 /**
2771  *      mptscsih_get_completion_code - get completion code from MPT request
2772  *      @ioc: Pointer to MPT_ADAPTER structure
2773  *      @req: Pointer to original MPT request frame
2774  *      @reply: Pointer to MPT reply frame (NULL if TurboReply)
2775  *
2776  **/
2777 static int
2778 mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2779                                 MPT_FRAME_HDR *reply)
2780 {
2781         SCSIIOReply_t   *pReply;
2782         MpiRaidActionReply_t *pr;
2783         u8               scsi_status;
2784         u16              status;
2785         int              completion_code;
2786
2787         pReply = (SCSIIOReply_t *)reply;
2788         status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2789         scsi_status = pReply->SCSIStatus;
2790
2791         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2792             "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh,"
2793             "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState,
2794             scsi_status, le32_to_cpu(pReply->IOCLogInfo)));
2795
2796         switch (status) {
2797
2798         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
2799                 completion_code = MPT_SCANDV_SELECTION_TIMEOUT;
2800                 break;
2801
2802         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
2803         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
2804         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
2805         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
2806                 completion_code = MPT_SCANDV_DID_RESET;
2807                 break;
2808
2809         case MPI_IOCSTATUS_BUSY:
2810         case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
2811                 completion_code = MPT_SCANDV_BUSY;
2812                 break;
2813
2814         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
2815         case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
2816         case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
2817                 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2818                         completion_code = MPT_SCANDV_GOOD;
2819                 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2820                         pr = (MpiRaidActionReply_t *)reply;
2821                         if (le16_to_cpu(pr->ActionStatus) ==
2822                                 MPI_RAID_ACTION_ASTATUS_SUCCESS)
2823                                 completion_code = MPT_SCANDV_GOOD;
2824                         else
2825                                 completion_code = MPT_SCANDV_SOME_ERROR;
2826                 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)
2827                         completion_code = MPT_SCANDV_SENSE;
2828                 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2829                         if (req->u.scsireq.CDB[0] == INQUIRY)
2830                                 completion_code = MPT_SCANDV_ISSUE_SENSE;
2831                         else
2832                                 completion_code = MPT_SCANDV_DID_RESET;
2833                 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2834                         completion_code = MPT_SCANDV_DID_RESET;
2835                 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2836                         completion_code = MPT_SCANDV_DID_RESET;
2837                 else if (scsi_status == MPI_SCSI_STATUS_BUSY)
2838                         completion_code = MPT_SCANDV_BUSY;
2839                 else
2840                         completion_code = MPT_SCANDV_GOOD;
2841                 break;
2842
2843         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
2844                 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2845                         completion_code = MPT_SCANDV_DID_RESET;
2846                 else
2847                         completion_code = MPT_SCANDV_SOME_ERROR;
2848                 break;
2849         default:
2850                 completion_code = MPT_SCANDV_SOME_ERROR;
2851                 break;
2852
2853         }       /* switch(status) */
2854
2855         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2856             "  completionCode set to %08xh\n", ioc->name, completion_code));
2857         return completion_code;
2858 }
2859
2860 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2861 /**
2862  *      mptscsih_do_cmd - Do internal command.
2863  *      @hd: MPT_SCSI_HOST pointer
2864  *      @io: INTERNAL_CMD pointer.
2865  *
2866  *      Issue the specified internally generated command and do command
2867  *      specific cleanup. For bus scan / DV only.
2868  *      NOTES: If command is Inquiry and status is good,
2869  *      initialize a target structure, save the data
2870  *
2871  *      Remark: Single threaded access only.
2872  *
2873  *      Return:
2874  *              < 0 if an illegal command or no resources
2875  *
2876  *                 0 if good
2877  *
2878  *               > 0 if command complete but some type of completion error.
2879  */
2880 static int
2881 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2882 {
2883         MPT_FRAME_HDR   *mf;
2884         SCSIIORequest_t *pScsiReq;
2885         int              my_idx, ii, dir;
2886         int              timeout;
2887         char             cmdLen;
2888         char             CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2889         u8               cmd = io->cmd;
2890         MPT_ADAPTER *ioc = hd->ioc;
2891         int              ret = 0;
2892         unsigned long    timeleft;
2893         unsigned long    flags;
2894
2895         /* don't send internal command during diag reset */
2896         spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
2897         if (ioc->ioc_reset_in_progress) {
2898                 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2899                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2900                         "%s: busy with host reset\n", ioc->name, __func__));
2901                 return MPT_SCANDV_BUSY;
2902         }
2903         spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2904
2905         mutex_lock(&ioc->internal_cmds.mutex);
2906
2907         /* Set command specific information
2908          */
2909         switch (cmd) {
2910         case INQUIRY:
2911                 cmdLen = 6;
2912                 dir = MPI_SCSIIO_CONTROL_READ;
2913                 CDB[0] = cmd;
2914                 CDB[4] = io->size;
2915                 timeout = 10;
2916                 break;
2917
2918         case TEST_UNIT_READY:
2919                 cmdLen = 6;
2920                 dir = MPI_SCSIIO_CONTROL_READ;
2921                 timeout = 10;
2922                 break;
2923
2924         case START_STOP:
2925                 cmdLen = 6;
2926                 dir = MPI_SCSIIO_CONTROL_READ;
2927                 CDB[0] = cmd;
2928                 CDB[4] = 1;     /*Spin up the disk */
2929                 timeout = 15;
2930                 break;
2931
2932         case REQUEST_SENSE:
2933                 cmdLen = 6;
2934                 CDB[0] = cmd;
2935                 CDB[4] = io->size;
2936                 dir = MPI_SCSIIO_CONTROL_READ;
2937                 timeout = 10;
2938                 break;
2939
2940         case READ_BUFFER:
2941                 cmdLen = 10;
2942                 dir = MPI_SCSIIO_CONTROL_READ;
2943                 CDB[0] = cmd;
2944                 if (io->flags & MPT_ICFLAG_ECHO) {
2945                         CDB[1] = 0x0A;
2946                 } else {
2947                         CDB[1] = 0x02;
2948                 }
2949
2950                 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2951                         CDB[1] |= 0x01;
2952                 }
2953                 CDB[6] = (io->size >> 16) & 0xFF;
2954                 CDB[7] = (io->size >>  8) & 0xFF;
2955                 CDB[8] = io->size & 0xFF;
2956                 timeout = 10;
2957                 break;
2958
2959         case WRITE_BUFFER:
2960                 cmdLen = 10;
2961                 dir = MPI_SCSIIO_CONTROL_WRITE;
2962                 CDB[0] = cmd;
2963                 if (io->flags & MPT_ICFLAG_ECHO) {
2964                         CDB[1] = 0x0A;
2965                 } else {
2966                         CDB[1] = 0x02;
2967                 }
2968                 CDB[6] = (io->size >> 16) & 0xFF;
2969                 CDB[7] = (io->size >>  8) & 0xFF;
2970                 CDB[8] = io->size & 0xFF;
2971                 timeout = 10;
2972                 break;
2973
2974         case RESERVE:
2975                 cmdLen = 6;
2976                 dir = MPI_SCSIIO_CONTROL_READ;
2977                 CDB[0] = cmd;
2978                 timeout = 10;
2979                 break;
2980
2981         case RELEASE:
2982                 cmdLen = 6;
2983                 dir = MPI_SCSIIO_CONTROL_READ;
2984                 CDB[0] = cmd;
2985                 timeout = 10;
2986                 break;
2987
2988         case SYNCHRONIZE_CACHE:
2989                 cmdLen = 10;
2990                 dir = MPI_SCSIIO_CONTROL_READ;
2991                 CDB[0] = cmd;
2992 //              CDB[1] = 0x02;  /* set immediate bit */
2993                 timeout = 10;
2994                 break;
2995
2996         default:
2997                 /* Error Case */
2998                 ret = -EFAULT;
2999                 goto out;
3000         }
3001
3002         /* Get and Populate a free Frame
3003          * MsgContext set in mpt_get_msg_frame call
3004          */
3005         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
3006                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n",
3007                     ioc->name, __func__));
3008                 ret = MPT_SCANDV_BUSY;
3009                 goto out;
3010         }
3011
3012         pScsiReq = (SCSIIORequest_t *) mf;
3013
3014         /* Get the request index */
3015         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
3016         ADD_INDEX_LOG(my_idx); /* for debug */
3017
3018         if (io->flags & MPT_ICFLAG_PHYS_DISK) {
3019                 pScsiReq->TargetID = io->physDiskNum;
3020                 pScsiReq->Bus = 0;
3021                 pScsiReq->ChainOffset = 0;
3022                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3023         } else {
3024                 pScsiReq->TargetID = io->id;
3025                 pScsiReq->Bus = io->channel;
3026                 pScsiReq->ChainOffset = 0;
3027                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
3028         }
3029
3030         pScsiReq->CDBLength = cmdLen;
3031         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
3032
3033         pScsiReq->Reserved = 0;
3034
3035         pScsiReq->MsgFlags = mpt_msg_flags(ioc);
3036         /* MsgContext set in mpt_get_msg_fram call  */
3037
3038         int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
3039
3040         if (io->flags & MPT_ICFLAG_TAGGED_CMD)
3041                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
3042         else
3043                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3044
3045         if (cmd == REQUEST_SENSE) {
3046                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3047                 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
3048                     "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd));
3049         }
3050
3051         for (ii = 0; ii < 16; ii++)
3052                 pScsiReq->CDB[ii] = CDB[ii];
3053
3054         pScsiReq->DataLength = cpu_to_le32(io->size);
3055         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
3056                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
3057
3058         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
3059             "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%d\n",
3060             ioc->name, __func__, cmd, io->channel, io->id, io->lun));
3061
3062         if (dir == MPI_SCSIIO_CONTROL_READ)
3063                 ioc->add_sge((char *) &pScsiReq->SGL,
3064                     MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma);
3065         else
3066                 ioc->add_sge((char *) &pScsiReq->SGL,
3067                     MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma);
3068
3069         INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
3070         mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
3071         timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done,
3072             timeout*HZ);
3073         if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
3074                 ret = MPT_SCANDV_DID_RESET;
3075                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
3076                     "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__,
3077                     cmd));
3078                 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
3079                         mpt_free_msg_frame(ioc, mf);
3080                         goto out;
3081                 }
3082                 if (!timeleft) {
3083                         printk(MYIOC_s_WARN_FMT
3084                                "Issuing Reset from %s!! doorbell=0x%08xh"
3085                                " cmd=0x%02x\n",
3086                                ioc->name, __func__, mpt_GetIocState(ioc, 0),
3087                                cmd);
3088                         mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
3089                         mpt_free_msg_frame(ioc, mf);
3090                 }
3091                 goto out;
3092         }
3093
3094         ret = ioc->internal_cmds.completion_code;
3095         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n",
3096                         ioc->name, __func__, ret));
3097
3098  out:
3099         CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
3100         mutex_unlock(&ioc->internal_cmds.mutex);
3101         return ret;
3102 }
3103
3104 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3105 /**
3106  *      mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3107  *      @hd: Pointer to a SCSI HOST structure
3108  *      @vdevice: virtual target device
3109  *
3110  *      Uses the ISR, but with special processing.
3111  *      MUST be single-threaded.
3112  *
3113  */
3114 static void
3115 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3116 {
3117         INTERNAL_CMD             iocmd;
3118
3119         /* Ignore hidden raid components, this is handled when the command
3120          * is sent to the volume
3121          */
3122         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3123                 return;
3124
3125         if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3126             !vdevice->configured_lun)
3127                 return;
3128
3129         /* Following parameters will not change
3130          * in this routine.
3131          */
3132         iocmd.cmd = SYNCHRONIZE_CACHE;
3133         iocmd.flags = 0;
3134         iocmd.physDiskNum = -1;
3135         iocmd.data = NULL;
3136         iocmd.data_dma = -1;
3137         iocmd.size = 0;
3138         iocmd.rsvd = iocmd.rsvd2 = 0;
3139         iocmd.channel = vdevice->vtarget->channel;
3140         iocmd.id = vdevice->vtarget->id;
3141         iocmd.lun = vdevice->lun;
3142
3143         mptscsih_do_cmd(hd, &iocmd);
3144 }
3145
3146 static ssize_t
3147 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3148                          char *buf)
3149 {
3150         struct Scsi_Host *host = class_to_shost(dev);
3151         MPT_SCSI_HOST   *hd = shost_priv(host);
3152         MPT_ADAPTER *ioc = hd->ioc;
3153
3154         return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3155             (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3156             (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3157             (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3158             ioc->facts.FWVersion.Word & 0x000000FF);
3159 }
3160 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3161
3162 static ssize_t
3163 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3164                            char *buf)
3165 {
3166         struct Scsi_Host *host = class_to_shost(dev);
3167         MPT_SCSI_HOST   *hd = shost_priv(host);
3168         MPT_ADAPTER *ioc = hd->ioc;
3169
3170         return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3171             (ioc->biosVersion & 0xFF000000) >> 24,
3172             (ioc->biosVersion & 0x00FF0000) >> 16,
3173             (ioc->biosVersion & 0x0000FF00) >> 8,
3174             ioc->biosVersion & 0x000000FF);
3175 }
3176 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3177
3178 static ssize_t
3179 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3180                           char *buf)
3181 {
3182         struct Scsi_Host *host = class_to_shost(dev);
3183         MPT_SCSI_HOST   *hd = shost_priv(host);
3184         MPT_ADAPTER *ioc = hd->ioc;
3185
3186         return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3187 }
3188 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3189
3190 static ssize_t
3191 mptscsih_version_product_show(struct device *dev,
3192                               struct device_attribute *attr,
3193 char *buf)
3194 {
3195         struct Scsi_Host *host = class_to_shost(dev);
3196         MPT_SCSI_HOST   *hd = shost_priv(host);
3197         MPT_ADAPTER *ioc = hd->ioc;
3198
3199         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3200 }
3201 static DEVICE_ATTR(version_product, S_IRUGO,
3202     mptscsih_version_product_show, NULL);
3203
3204 static ssize_t
3205 mptscsih_version_nvdata_persistent_show(struct device *dev,
3206                                         struct device_attribute *attr,
3207                                         char *buf)
3208 {
3209         struct Scsi_Host *host = class_to_shost(dev);
3210         MPT_SCSI_HOST   *hd = shost_priv(host);
3211         MPT_ADAPTER *ioc = hd->ioc;
3212
3213         return snprintf(buf, PAGE_SIZE, "%02xh\n",
3214             ioc->nvdata_version_persistent);
3215 }
3216 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3217     mptscsih_version_nvdata_persistent_show, NULL);
3218
3219 static ssize_t
3220 mptscsih_version_nvdata_default_show(struct device *dev,
3221                                      struct device_attribute *attr, char *buf)
3222 {
3223         struct Scsi_Host *host = class_to_shost(dev);
3224         MPT_SCSI_HOST   *hd = shost_priv(host);
3225         MPT_ADAPTER *ioc = hd->ioc;
3226
3227         return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3228 }
3229 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3230     mptscsih_version_nvdata_default_show, NULL);
3231
3232 static ssize_t
3233 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3234                          char *buf)
3235 {
3236         struct Scsi_Host *host = class_to_shost(dev);
3237         MPT_SCSI_HOST   *hd = shost_priv(host);
3238         MPT_ADAPTER *ioc = hd->ioc;
3239
3240         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3241 }
3242 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3243
3244 static ssize_t
3245 mptscsih_board_assembly_show(struct device *dev,
3246                              struct device_attribute *attr, char *buf)
3247 {
3248         struct Scsi_Host *host = class_to_shost(dev);
3249         MPT_SCSI_HOST   *hd = shost_priv(host);
3250         MPT_ADAPTER *ioc = hd->ioc;
3251
3252         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3253 }
3254 static DEVICE_ATTR(board_assembly, S_IRUGO,
3255     mptscsih_board_assembly_show, NULL);
3256
3257 static ssize_t
3258 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3259                            char *buf)
3260 {
3261         struct Scsi_Host *host = class_to_shost(dev);
3262         MPT_SCSI_HOST   *hd = shost_priv(host);
3263         MPT_ADAPTER *ioc = hd->ioc;
3264
3265         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3266 }
3267 static DEVICE_ATTR(board_tracer, S_IRUGO,
3268     mptscsih_board_tracer_show, NULL);
3269
3270 static ssize_t
3271 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3272                        char *buf)
3273 {
3274         struct Scsi_Host *host = class_to_shost(dev);
3275         MPT_SCSI_HOST   *hd = shost_priv(host);
3276         MPT_ADAPTER *ioc = hd->ioc;
3277
3278         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3279 }
3280 static DEVICE_ATTR(io_delay, S_IRUGO,
3281     mptscsih_io_delay_show, NULL);
3282
3283 static ssize_t
3284 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3285                            char *buf)
3286 {
3287         struct Scsi_Host *host = class_to_shost(dev);
3288         MPT_SCSI_HOST   *hd = shost_priv(host);
3289         MPT_ADAPTER *ioc = hd->ioc;
3290
3291         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3292 }
3293 static DEVICE_ATTR(device_delay, S_IRUGO,
3294     mptscsih_device_delay_show, NULL);
3295
3296 static ssize_t
3297 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3298                           char *buf)
3299 {
3300         struct Scsi_Host *host = class_to_shost(dev);
3301         MPT_SCSI_HOST   *hd = shost_priv(host);
3302         MPT_ADAPTER *ioc = hd->ioc;
3303
3304         return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3305 }
3306 static ssize_t
3307 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3308                            const char *buf, size_t count)
3309 {
3310         struct Scsi_Host *host = class_to_shost(dev);
3311         MPT_SCSI_HOST   *hd = shost_priv(host);
3312         MPT_ADAPTER *ioc = hd->ioc;
3313         int val = 0;
3314
3315         if (sscanf(buf, "%x", &val) != 1)
3316                 return -EINVAL;
3317
3318         ioc->debug_level = val;
3319         printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3320                                 ioc->name, ioc->debug_level);
3321         return strlen(buf);
3322 }
3323 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3324         mptscsih_debug_level_show, mptscsih_debug_level_store);
3325
3326 struct device_attribute *mptscsih_host_attrs[] = {
3327         &dev_attr_version_fw,
3328         &dev_attr_version_bios,
3329         &dev_attr_version_mpi,
3330         &dev_attr_version_product,
3331         &dev_attr_version_nvdata_persistent,
3332         &dev_attr_version_nvdata_default,
3333         &dev_attr_board_name,
3334         &dev_attr_board_assembly,
3335         &dev_attr_board_tracer,
3336         &dev_attr_io_delay,
3337         &dev_attr_device_delay,
3338         &dev_attr_debug_level,
3339         NULL,
3340 };
3341
3342 EXPORT_SYMBOL(mptscsih_host_attrs);
3343
3344 EXPORT_SYMBOL(mptscsih_remove);
3345 EXPORT_SYMBOL(mptscsih_shutdown);
3346 #ifdef CONFIG_PM
3347 EXPORT_SYMBOL(mptscsih_suspend);
3348 EXPORT_SYMBOL(mptscsih_resume);
3349 #endif
3350 EXPORT_SYMBOL(mptscsih_proc_info);
3351 EXPORT_SYMBOL(mptscsih_info);
3352 EXPORT_SYMBOL(mptscsih_qcmd);
3353 EXPORT_SYMBOL(mptscsih_slave_destroy);
3354 EXPORT_SYMBOL(mptscsih_slave_configure);
3355 EXPORT_SYMBOL(mptscsih_abort);
3356 EXPORT_SYMBOL(mptscsih_dev_reset);
3357 EXPORT_SYMBOL(mptscsih_bus_reset);
3358 EXPORT_SYMBOL(mptscsih_host_reset);
3359 EXPORT_SYMBOL(mptscsih_bios_param);
3360 EXPORT_SYMBOL(mptscsih_io_done);
3361 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3362 EXPORT_SYMBOL(mptscsih_scandv_complete);
3363 EXPORT_SYMBOL(mptscsih_event_process);
3364 EXPORT_SYMBOL(mptscsih_ioc_reset);
3365 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3366
3367 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/