block: remove per-queue plugging
[linux-3.10.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  ||
831                                             pScsiReq->CDB[0] == READ_10 ||
832                                             pScsiReq->CDB[0] == READ_12 ||
833                                             pScsiReq->CDB[0] == READ_16 ||
834                                             pScsiReq->CDB[0] == VERIFY  ||
835                                             pScsiReq->CDB[0] == VERIFY_16) {
836                                                 if (scsi_bufflen(sc) !=
837                                                         xfer_cnt) {
838                                                         sc->result =
839                                                         DID_SOFT_ERROR << 16;
840                                                     printk(KERN_WARNING "Errata"
841                                                     "on LSI53C1030 occurred."
842                                                     "sc->req_bufflen=0x%02x,"
843                                                     "xfer_cnt=0x%02x\n",
844                                                     scsi_bufflen(sc),
845                                                     xfer_cnt);
846                                                 }
847                                         }
848                                 }
849
850                                 if (xfer_cnt < sc->underflow) {
851                                         if (scsi_status == SAM_STAT_BUSY)
852                                                 sc->result = SAM_STAT_BUSY;
853                                         else
854                                                 sc->result = DID_SOFT_ERROR << 16;
855                                 }
856                                 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
857                                         /* What to do?
858                                         */
859                                         sc->result = DID_SOFT_ERROR << 16;
860                                 }
861                                 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
862                                         /*  Not real sure here either...  */
863                                         sc->result = DID_RESET << 16;
864                                 }
865                         }
866
867
868                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
869                             "  sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
870                             ioc->name, sc->underflow));
871                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
872                             "  ActBytesXferd=%02xh\n", ioc->name, xfer_cnt));
873
874                         /* Report Queue Full
875                          */
876                         if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
877                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
878
879                         break;
880
881                 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:           /* 0x0044 */
882                         scsi_set_resid(sc, 0);
883                 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
884                 case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
885                         sc->result = (DID_OK << 16) | scsi_status;
886                         if (scsi_state == 0) {
887                                 ;
888                         } else if (scsi_state &
889                             MPI_SCSI_STATE_AUTOSENSE_VALID) {
890
891                                 /*
892                                  * For potential trouble on LSI53C1030.
893                                  * (date:2007.xx.)
894                                  * It is checked whether the length of
895                                  * request data is equal to
896                                  * the length of transfer and residual.
897                                  * MEDIUM_ERROR is set by incorrect data.
898                                  */
899                                 if ((ioc->bus_type == SPI) &&
900                                         (sc->sense_buffer[2] & 0x20)) {
901                                         u32      difftransfer;
902                                         difftransfer =
903                                         sc->sense_buffer[3] << 24 |
904                                         sc->sense_buffer[4] << 16 |
905                                         sc->sense_buffer[5] << 8 |
906                                         sc->sense_buffer[6];
907                                         if (((sc->sense_buffer[3] & 0x80) ==
908                                                 0x80) && (scsi_bufflen(sc)
909                                                 != xfer_cnt)) {
910                                                 sc->sense_buffer[2] =
911                                                     MEDIUM_ERROR;
912                                                 sc->sense_buffer[12] = 0xff;
913                                                 sc->sense_buffer[13] = 0xff;
914                                                 printk(KERN_WARNING"Errata"
915                                                 "on LSI53C1030 occurred."
916                                                 "sc->req_bufflen=0x%02x,"
917                                                 "xfer_cnt=0x%02x\n" ,
918                                                 scsi_bufflen(sc),
919                                                 xfer_cnt);
920                                         }
921                                         if (((sc->sense_buffer[3] & 0x80)
922                                                 != 0x80) &&
923                                                 (scsi_bufflen(sc) !=
924                                                 xfer_cnt + difftransfer)) {
925                                                 sc->sense_buffer[2] =
926                                                         MEDIUM_ERROR;
927                                                 sc->sense_buffer[12] = 0xff;
928                                                 sc->sense_buffer[13] = 0xff;
929                                                 printk(KERN_WARNING
930                                                 "Errata on LSI53C1030 occurred"
931                                                 "sc->req_bufflen=0x%02x,"
932                                                 " xfer_cnt=0x%02x,"
933                                                 "difftransfer=0x%02x\n",
934                                                 scsi_bufflen(sc),
935                                                 xfer_cnt,
936                                                 difftransfer);
937                                         }
938                                 }
939
940                                 /*
941                                  * If running against circa 200003dd 909 MPT f/w,
942                                  * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
943                                  * (QUEUE_FULL) returned from device! --> get 0x0000?128
944                                  * and with SenseBytes set to 0.
945                                  */
946                                 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
947                                         mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
948
949                         }
950                         else if (scsi_state &
951                                  (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
952                            ) {
953                                 /*
954                                  * What to do?
955                                  */
956                                 sc->result = DID_SOFT_ERROR << 16;
957                         }
958                         else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
959                                 /*  Not real sure here either...  */
960                                 sc->result = DID_RESET << 16;
961                         }
962                         else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
963                                 /* Device Inq. data indicates that it supports
964                                  * QTags, but rejects QTag messages.
965                                  * This command completed OK.
966                                  *
967                                  * Not real sure here either so do nothing...  */
968                         }
969
970                         if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
971                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
972
973                         /* Add handling of:
974                          * Reservation Conflict, Busy,
975                          * Command Terminated, CHECK
976                          */
977                         break;
978
979                 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
980                         sc->result = DID_SOFT_ERROR << 16;
981                         break;
982
983                 case MPI_IOCSTATUS_INVALID_FUNCTION:            /* 0x0001 */
984                 case MPI_IOCSTATUS_INVALID_SGL:                 /* 0x0003 */
985                 case MPI_IOCSTATUS_INTERNAL_ERROR:              /* 0x0004 */
986                 case MPI_IOCSTATUS_RESERVED:                    /* 0x0005 */
987                 case MPI_IOCSTATUS_INVALID_FIELD:               /* 0x0007 */
988                 case MPI_IOCSTATUS_INVALID_STATE:               /* 0x0008 */
989                 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
990                 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:       /* 0x004A */
991                 default:
992                         /*
993                          * What to do?
994                          */
995                         sc->result = DID_SOFT_ERROR << 16;
996                         break;
997
998                 }       /* switch(status) */
999
1000 #ifdef CONFIG_FUSION_LOGGING
1001                 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
1002                         mptscsih_info_scsiio(ioc, sc, pScsiReply);
1003 #endif
1004
1005         } /* end of address reply case */
1006 out:
1007         /* Unmap the DMA buffers, if any. */
1008         scsi_dma_unmap(sc);
1009
1010         sc->scsi_done(sc);              /* Issue the command callback */
1011
1012         /* Free Chain buffers */
1013         mptscsih_freeChainBuffers(ioc, req_idx);
1014         return 1;
1015 }
1016
1017 /*
1018  *      mptscsih_flush_running_cmds - For each command found, search
1019  *              Scsi_Host instance taskQ and reply to OS.
1020  *              Called only if recovering from a FW reload.
1021  *      @hd: Pointer to a SCSI HOST structure
1022  *
1023  *      Returns: None.
1024  *
1025  *      Must be called while new I/Os are being queued.
1026  */
1027 static void
1028 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
1029 {
1030         MPT_ADAPTER *ioc = hd->ioc;
1031         struct scsi_cmnd *sc;
1032         SCSIIORequest_t *mf = NULL;
1033         int              ii;
1034         int              channel, id;
1035
1036         for (ii= 0; ii < ioc->req_depth; ii++) {
1037                 sc = mptscsih_getclear_scsi_lookup(ioc, ii);
1038                 if (!sc)
1039                         continue;
1040                 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1041                 if (!mf)
1042                         continue;
1043                 channel = mf->Bus;
1044                 id = mf->TargetID;
1045                 mptscsih_freeChainBuffers(ioc, ii);
1046                 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1047                 if ((unsigned char *)mf != sc->host_scribble)
1048                         continue;
1049                 scsi_dma_unmap(sc);
1050                 sc->result = DID_RESET << 16;
1051                 sc->host_scribble = NULL;
1052                 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
1053                     "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, "
1054                     "idx=%x\n", ioc->name, channel, id, sc, mf, ii));
1055                 sc->scsi_done(sc);
1056         }
1057 }
1058
1059 /*
1060  *      mptscsih_search_running_cmds - Delete any commands associated
1061  *              with the specified target and lun. Function called only
1062  *              when a lun is disable by mid-layer.
1063  *              Do NOT access the referenced scsi_cmnd structure or
1064  *              members. Will cause either a paging or NULL ptr error.
1065  *              (BUT, BUT, BUT, the code does reference it! - mdr)
1066  *      @hd: Pointer to a SCSI HOST structure
1067  *      @vdevice: per device private data
1068  *
1069  *      Returns: None.
1070  *
1071  *      Called from slave_destroy.
1072  */
1073 static void
1074 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
1075 {
1076         SCSIIORequest_t *mf = NULL;
1077         int              ii;
1078         struct scsi_cmnd *sc;
1079         struct scsi_lun  lun;
1080         MPT_ADAPTER *ioc = hd->ioc;
1081         unsigned long   flags;
1082
1083         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1084         for (ii = 0; ii < ioc->req_depth; ii++) {
1085                 if ((sc = ioc->ScsiLookup[ii]) != NULL) {
1086
1087                         mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1088                         if (mf == NULL)
1089                                 continue;
1090                         /* If the device is a hidden raid component, then its
1091                          * expected that the mf->function will be RAID_SCSI_IO
1092                          */
1093                         if (vdevice->vtarget->tflags &
1094                             MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
1095                             MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
1096                                 continue;
1097
1098                         int_to_scsilun(vdevice->lun, &lun);
1099                         if ((mf->Bus != vdevice->vtarget->channel) ||
1100                             (mf->TargetID != vdevice->vtarget->id) ||
1101                             memcmp(lun.scsi_lun, mf->LUN, 8))
1102                                 continue;
1103
1104                         if ((unsigned char *)mf != sc->host_scribble)
1105                                 continue;
1106                         ioc->ScsiLookup[ii] = NULL;
1107                         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1108                         mptscsih_freeChainBuffers(ioc, ii);
1109                         mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1110                         scsi_dma_unmap(sc);
1111                         sc->host_scribble = NULL;
1112                         sc->result = DID_NO_CONNECT << 16;
1113                         dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device,
1114                            MYIOC_s_FMT "completing cmds: fw_channel %d, "
1115                            "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name,
1116                            vdevice->vtarget->channel, vdevice->vtarget->id,
1117                            sc, mf, ii));
1118                         sc->scsi_done(sc);
1119                         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1120                 }
1121         }
1122         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1123         return;
1124 }
1125
1126 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1127
1128 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1129 /*
1130  *      mptscsih_report_queue_full - Report QUEUE_FULL status returned
1131  *      from a SCSI target device.
1132  *      @sc: Pointer to scsi_cmnd structure
1133  *      @pScsiReply: Pointer to SCSIIOReply_t
1134  *      @pScsiReq: Pointer to original SCSI request
1135  *
1136  *      This routine periodically reports QUEUE_FULL status returned from a
1137  *      SCSI target device.  It reports this to the console via kernel
1138  *      printk() API call, not more than once every 10 seconds.
1139  */
1140 static void
1141 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1142 {
1143         long time = jiffies;
1144         MPT_SCSI_HOST           *hd;
1145         MPT_ADAPTER     *ioc;
1146
1147         if (sc->device == NULL)
1148                 return;
1149         if (sc->device->host == NULL)
1150                 return;
1151         if ((hd = shost_priv(sc->device->host)) == NULL)
1152                 return;
1153         ioc = hd->ioc;
1154         if (time - hd->last_queue_full > 10 * HZ) {
1155                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n",
1156                                 ioc->name, 0, sc->device->id, sc->device->lun));
1157                 hd->last_queue_full = time;
1158         }
1159 }
1160
1161 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1162 /*
1163  *      mptscsih_remove - Removed scsi devices
1164  *      @pdev: Pointer to pci_dev structure
1165  *
1166  *
1167  */
1168 void
1169 mptscsih_remove(struct pci_dev *pdev)
1170 {
1171         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1172         struct Scsi_Host        *host = ioc->sh;
1173         MPT_SCSI_HOST           *hd;
1174         int sz1;
1175
1176         scsi_remove_host(host);
1177
1178         if((hd = shost_priv(host)) == NULL)
1179                 return;
1180
1181         mptscsih_shutdown(pdev);
1182
1183         sz1=0;
1184
1185         if (ioc->ScsiLookup != NULL) {
1186                 sz1 = ioc->req_depth * sizeof(void *);
1187                 kfree(ioc->ScsiLookup);
1188                 ioc->ScsiLookup = NULL;
1189         }
1190
1191         dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1192             "Free'd ScsiLookup (%d) memory\n",
1193             ioc->name, sz1));
1194
1195         kfree(hd->info_kbuf);
1196
1197         /* NULL the Scsi_Host pointer
1198          */
1199         ioc->sh = NULL;
1200
1201         scsi_host_put(host);
1202
1203         mpt_detach(pdev);
1204
1205 }
1206
1207 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1208 /*
1209  *      mptscsih_shutdown - reboot notifier
1210  *
1211  */
1212 void
1213 mptscsih_shutdown(struct pci_dev *pdev)
1214 {
1215 }
1216
1217 #ifdef CONFIG_PM
1218 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1219 /*
1220  *      mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1221  *
1222  *
1223  */
1224 int
1225 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1226 {
1227         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1228
1229         scsi_block_requests(ioc->sh);
1230         flush_scheduled_work();
1231         mptscsih_shutdown(pdev);
1232         return mpt_suspend(pdev,state);
1233 }
1234
1235 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1236 /*
1237  *      mptscsih_resume - Fusion MPT scsi driver resume routine.
1238  *
1239  *
1240  */
1241 int
1242 mptscsih_resume(struct pci_dev *pdev)
1243 {
1244         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1245         int rc;
1246
1247         rc = mpt_resume(pdev);
1248         scsi_unblock_requests(ioc->sh);
1249         return rc;
1250 }
1251
1252 #endif
1253
1254 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1255 /**
1256  *      mptscsih_info - Return information about MPT adapter
1257  *      @SChost: Pointer to Scsi_Host structure
1258  *
1259  *      (linux scsi_host_template.info routine)
1260  *
1261  *      Returns pointer to buffer where information was written.
1262  */
1263 const char *
1264 mptscsih_info(struct Scsi_Host *SChost)
1265 {
1266         MPT_SCSI_HOST *h;
1267         int size = 0;
1268
1269         h = shost_priv(SChost);
1270
1271         if (h) {
1272                 if (h->info_kbuf == NULL)
1273                         if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1274                                 return h->info_kbuf;
1275                 h->info_kbuf[0] = '\0';
1276
1277                 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1278                 h->info_kbuf[size-1] = '\0';
1279         }
1280
1281         return h->info_kbuf;
1282 }
1283
1284 struct info_str {
1285         char *buffer;
1286         int   length;
1287         int   offset;
1288         int   pos;
1289 };
1290
1291 static void
1292 mptscsih_copy_mem_info(struct info_str *info, char *data, int len)
1293 {
1294         if (info->pos + len > info->length)
1295                 len = info->length - info->pos;
1296
1297         if (info->pos + len < info->offset) {
1298                 info->pos += len;
1299                 return;
1300         }
1301
1302         if (info->pos < info->offset) {
1303                 data += (info->offset - info->pos);
1304                 len  -= (info->offset - info->pos);
1305         }
1306
1307         if (len > 0) {
1308                 memcpy(info->buffer + info->pos, data, len);
1309                 info->pos += len;
1310         }
1311 }
1312
1313 static int
1314 mptscsih_copy_info(struct info_str *info, char *fmt, ...)
1315 {
1316         va_list args;
1317         char buf[81];
1318         int len;
1319
1320         va_start(args, fmt);
1321         len = vsprintf(buf, fmt, args);
1322         va_end(args);
1323
1324         mptscsih_copy_mem_info(info, buf, len);
1325         return len;
1326 }
1327
1328 static int
1329 mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len)
1330 {
1331         struct info_str info;
1332
1333         info.buffer     = pbuf;
1334         info.length     = len;
1335         info.offset     = offset;
1336         info.pos        = 0;
1337
1338         mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name);
1339         mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1340         mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts);
1341         mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth);
1342
1343         return ((info.pos > info.offset) ? info.pos - info.offset : 0);
1344 }
1345
1346 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1347 /**
1348  *      mptscsih_proc_info - Return information about MPT adapter
1349  *      @host:   scsi host struct
1350  *      @buffer: if write, user data; if read, buffer for user
1351  *      @start: returns the buffer address
1352  *      @offset: if write, 0; if read, the current offset into the buffer from
1353  *               the previous read.
1354  *      @length: if write, return length;
1355  *      @func:   write = 1; read = 0
1356  *
1357  *      (linux scsi_host_template.info routine)
1358  */
1359 int
1360 mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
1361                         int length, int func)
1362 {
1363         MPT_SCSI_HOST   *hd = shost_priv(host);
1364         MPT_ADAPTER     *ioc = hd->ioc;
1365         int size = 0;
1366
1367         if (func) {
1368                 /*
1369                  * write is not supported
1370                  */
1371         } else {
1372                 if (start)
1373                         *start = buffer;
1374
1375                 size = mptscsih_host_info(ioc, buffer, offset, length);
1376         }
1377
1378         return size;
1379 }
1380
1381 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1382 #define ADD_INDEX_LOG(req_ent)  do { } while(0)
1383
1384 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1385 /**
1386  *      mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1387  *      @SCpnt: Pointer to scsi_cmnd structure
1388  *      @done: Pointer SCSI mid-layer IO completion function
1389  *
1390  *      (linux scsi_host_template.queuecommand routine)
1391  *      This is the primary SCSI IO start routine.  Create a MPI SCSIIORequest
1392  *      from a linux scsi_cmnd request and send it to the IOC.
1393  *
1394  *      Returns 0. (rtn value discarded by linux scsi mid-layer)
1395  */
1396 int
1397 mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1398 {
1399         MPT_SCSI_HOST           *hd;
1400         MPT_FRAME_HDR           *mf;
1401         SCSIIORequest_t         *pScsiReq;
1402         VirtDevice              *vdevice = SCpnt->device->hostdata;
1403         u32      datalen;
1404         u32      scsictl;
1405         u32      scsidir;
1406         u32      cmd_len;
1407         int      my_idx;
1408         int      ii;
1409         MPT_ADAPTER *ioc;
1410
1411         hd = shost_priv(SCpnt->device->host);
1412         ioc = hd->ioc;
1413         SCpnt->scsi_done = done;
1414
1415         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
1416                 ioc->name, SCpnt, done));
1417
1418         if (ioc->taskmgmt_quiesce_io) {
1419                 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT "qcmd: SCpnt=%p timeout + 60HZ\n",
1420                         ioc->name, SCpnt));
1421                 return SCSI_MLQUEUE_HOST_BUSY;
1422         }
1423
1424         /*
1425          *  Put together a MPT SCSI request...
1426          */
1427         if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1428                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1429                                 ioc->name));
1430                 return SCSI_MLQUEUE_HOST_BUSY;
1431         }
1432
1433         pScsiReq = (SCSIIORequest_t *) mf;
1434
1435         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1436
1437         ADD_INDEX_LOG(my_idx);
1438
1439         /*    TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1440          *    Seems we may receive a buffer (datalen>0) even when there
1441          *    will be no data transfer!  GRRRRR...
1442          */
1443         if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1444                 datalen = scsi_bufflen(SCpnt);
1445                 scsidir = MPI_SCSIIO_CONTROL_READ;      /* DATA IN  (host<--ioc<--dev) */
1446         } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1447                 datalen = scsi_bufflen(SCpnt);
1448                 scsidir = MPI_SCSIIO_CONTROL_WRITE;     /* DATA OUT (host-->ioc-->dev) */
1449         } else {
1450                 datalen = 0;
1451                 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1452         }
1453
1454         /* Default to untagged. Once a target structure has been allocated,
1455          * use the Inquiry data to determine if device supports tagged.
1456          */
1457         if (vdevice
1458             && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1459             && (SCpnt->device->tagged_supported)) {
1460                 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1461                 if (SCpnt->request && SCpnt->request->ioprio) {
1462                         if (((SCpnt->request->ioprio & 0x7) == 1) ||
1463                                 !(SCpnt->request->ioprio & 0x7))
1464                                 scsictl |= MPI_SCSIIO_CONTROL_HEADOFQ;
1465                 }
1466         } else
1467                 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1468
1469
1470         /* Use the above information to set up the message frame
1471          */
1472         pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1473         pScsiReq->Bus = vdevice->vtarget->channel;
1474         pScsiReq->ChainOffset = 0;
1475         if (vdevice->vtarget->tflags &  MPT_TARGET_FLAGS_RAID_COMPONENT)
1476                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1477         else
1478                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1479         pScsiReq->CDBLength = SCpnt->cmd_len;
1480         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1481         pScsiReq->Reserved = 0;
1482         pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1483         int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1484         pScsiReq->Control = cpu_to_le32(scsictl);
1485
1486         /*
1487          *  Write SCSI CDB into the message
1488          */
1489         cmd_len = SCpnt->cmd_len;
1490         for (ii=0; ii < cmd_len; ii++)
1491                 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1492
1493         for (ii=cmd_len; ii < 16; ii++)
1494                 pScsiReq->CDB[ii] = 0;
1495
1496         /* DataLength */
1497         pScsiReq->DataLength = cpu_to_le32(datalen);
1498
1499         /* SenseBuffer low address */
1500         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1501                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1502
1503         /* Now add the SG list
1504          * Always have a SGE even if null length.
1505          */
1506         if (datalen == 0) {
1507                 /* Add a NULL SGE */
1508                 ioc->add_sge((char *)&pScsiReq->SGL,
1509                         MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1510                         (dma_addr_t) -1);
1511         } else {
1512                 /* Add a 32 or 64 bit SGE */
1513                 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1514                         goto fail;
1515         }
1516
1517         SCpnt->host_scribble = (unsigned char *)mf;
1518         mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1519
1520         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1521         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1522                         ioc->name, SCpnt, mf, my_idx));
1523         DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1524         return 0;
1525
1526  fail:
1527         mptscsih_freeChainBuffers(ioc, my_idx);
1528         mpt_free_msg_frame(ioc, mf);
1529         return SCSI_MLQUEUE_HOST_BUSY;
1530 }
1531
1532 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1533 /*
1534  *      mptscsih_freeChainBuffers - Function to free chain buffers associated
1535  *      with a SCSI IO request
1536  *      @hd: Pointer to the MPT_SCSI_HOST instance
1537  *      @req_idx: Index of the SCSI IO request frame.
1538  *
1539  *      Called if SG chain buffer allocation fails and mptscsih callbacks.
1540  *      No return.
1541  */
1542 static void
1543 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1544 {
1545         MPT_FRAME_HDR *chain;
1546         unsigned long flags;
1547         int chain_idx;
1548         int next;
1549
1550         /* Get the first chain index and reset
1551          * tracker state.
1552          */
1553         chain_idx = ioc->ReqToChain[req_idx];
1554         ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1555
1556         while (chain_idx != MPT_HOST_NO_CHAIN) {
1557
1558                 /* Save the next chain buffer index */
1559                 next = ioc->ChainToChain[chain_idx];
1560
1561                 /* Free this chain buffer and reset
1562                  * tracker
1563                  */
1564                 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1565
1566                 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1567                                         + (chain_idx * ioc->req_sz));
1568
1569                 spin_lock_irqsave(&ioc->FreeQlock, flags);
1570                 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1571                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1572
1573                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1574                                 ioc->name, chain_idx));
1575
1576                 /* handle next */
1577                 chain_idx = next;
1578         }
1579         return;
1580 }
1581
1582 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1583 /*
1584  *      Reset Handling
1585  */
1586
1587 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1588 /**
1589  *      mptscsih_IssueTaskMgmt - Generic send Task Management function.
1590  *      @hd: Pointer to MPT_SCSI_HOST structure
1591  *      @type: Task Management type
1592  *      @channel: channel number for task management
1593  *      @id: Logical Target ID for reset (if appropriate)
1594  *      @lun: Logical Unit for reset (if appropriate)
1595  *      @ctx2abort: Context for the task to be aborted (if appropriate)
1596  *      @timeout: timeout for task management control
1597  *
1598  *      Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1599  *      or a non-interrupt thread.  In the former, must not call schedule().
1600  *
1601  *      Not all fields are meaningfull for all task types.
1602  *
1603  *      Returns 0 for SUCCESS, or FAILED.
1604  *
1605  **/
1606 int
1607 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun,
1608         int ctx2abort, ulong timeout)
1609 {
1610         MPT_FRAME_HDR   *mf;
1611         SCSITaskMgmt_t  *pScsiTm;
1612         int              ii;
1613         int              retval;
1614         MPT_ADAPTER     *ioc = hd->ioc;
1615         unsigned long    timeleft;
1616         u8               issue_hard_reset;
1617         u32              ioc_raw_state;
1618         unsigned long    time_count;
1619
1620         issue_hard_reset = 0;
1621         ioc_raw_state = mpt_GetIocState(ioc, 0);
1622
1623         if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1624                 printk(MYIOC_s_WARN_FMT
1625                         "TaskMgmt type=%x: IOC Not operational (0x%x)!\n",
1626                         ioc->name, type, ioc_raw_state);
1627                 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
1628                     ioc->name, __func__);
1629                 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1630                         printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset "
1631                             "FAILED!!\n", ioc->name);
1632                 return 0;
1633         }
1634
1635         if (ioc_raw_state & MPI_DOORBELL_ACTIVE) {
1636                 printk(MYIOC_s_WARN_FMT
1637                         "TaskMgmt type=%x: ioc_state: "
1638                         "DOORBELL_ACTIVE (0x%x)!\n",
1639                         ioc->name, type, ioc_raw_state);
1640                 return FAILED;
1641         }
1642
1643         mutex_lock(&ioc->taskmgmt_cmds.mutex);
1644         if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
1645                 mf = NULL;
1646                 retval = FAILED;
1647                 goto out;
1648         }
1649
1650         /* Return Fail to calling function if no message frames available.
1651          */
1652         if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1653                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1654                         "TaskMgmt no msg frames!!\n", ioc->name));
1655                 retval = FAILED;
1656                 mpt_clear_taskmgmt_in_progress_flag(ioc);
1657                 goto out;
1658         }
1659         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
1660                         ioc->name, mf));
1661
1662         /* Format the Request
1663          */
1664         pScsiTm = (SCSITaskMgmt_t *) mf;
1665         pScsiTm->TargetID = id;
1666         pScsiTm->Bus = channel;
1667         pScsiTm->ChainOffset = 0;
1668         pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1669
1670         pScsiTm->Reserved = 0;
1671         pScsiTm->TaskType = type;
1672         pScsiTm->Reserved1 = 0;
1673         pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1674                     ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1675
1676         int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1677
1678         for (ii=0; ii < 7; ii++)
1679                 pScsiTm->Reserved2[ii] = 0;
1680
1681         pScsiTm->TaskMsgContext = ctx2abort;
1682
1683         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) "
1684                 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort,
1685                 type, timeout));
1686
1687         DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1688
1689         INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1690         time_count = jiffies;
1691         if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1692             (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1693                 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1694         else {
1695                 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1696                         sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1697                 if (retval) {
1698                         dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1699                                 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n",
1700                                 ioc->name, mf, retval));
1701                         mpt_free_msg_frame(ioc, mf);
1702                         mpt_clear_taskmgmt_in_progress_flag(ioc);
1703                         goto out;
1704                 }
1705         }
1706
1707         timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
1708                 timeout*HZ);
1709         if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
1710                 retval = FAILED;
1711                 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
1712                     "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf));
1713                 mpt_clear_taskmgmt_in_progress_flag(ioc);
1714                 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
1715                         goto out;
1716                 issue_hard_reset = 1;
1717                 goto out;
1718         }
1719
1720         retval = mptscsih_taskmgmt_reply(ioc, type,
1721             (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply);
1722
1723         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1724             "TaskMgmt completed (%d seconds)\n",
1725             ioc->name, jiffies_to_msecs(jiffies - time_count)/1000));
1726
1727  out:
1728
1729         CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1730         if (issue_hard_reset) {
1731                 printk(MYIOC_s_WARN_FMT
1732                        "Issuing Reset from %s!! doorbell=0x%08x\n",
1733                        ioc->name, __func__, mpt_GetIocState(ioc, 0));
1734                 retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1735                 mpt_free_msg_frame(ioc, mf);
1736         }
1737
1738         retval = (retval == 0) ? 0 : FAILED;
1739         mutex_unlock(&ioc->taskmgmt_cmds.mutex);
1740         return retval;
1741 }
1742 EXPORT_SYMBOL(mptscsih_IssueTaskMgmt);
1743
1744 static int
1745 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1746 {
1747         switch (ioc->bus_type) {
1748         case FC:
1749                 return 40;
1750         case SAS:
1751                 return 30;
1752         case SPI:
1753         default:
1754                 return 10;
1755         }
1756 }
1757
1758 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1759 /**
1760  *      mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1761  *      @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1762  *
1763  *      (linux scsi_host_template.eh_abort_handler routine)
1764  *
1765  *      Returns SUCCESS or FAILED.
1766  **/
1767 int
1768 mptscsih_abort(struct scsi_cmnd * SCpnt)
1769 {
1770         MPT_SCSI_HOST   *hd;
1771         MPT_FRAME_HDR   *mf;
1772         u32              ctx2abort;
1773         int              scpnt_idx;
1774         int              retval;
1775         VirtDevice       *vdevice;
1776         ulong            sn = SCpnt->serial_number;
1777         MPT_ADAPTER     *ioc;
1778
1779         /* If we can't locate our host adapter structure, return FAILED status.
1780          */
1781         if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1782                 SCpnt->result = DID_RESET << 16;
1783                 SCpnt->scsi_done(SCpnt);
1784                 printk(KERN_ERR MYNAM ": task abort: "
1785                     "can't locate host! (sc=%p)\n", SCpnt);
1786                 return FAILED;
1787         }
1788
1789         ioc = hd->ioc;
1790         printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1791                ioc->name, SCpnt);
1792         scsi_print_command(SCpnt);
1793
1794         vdevice = SCpnt->device->hostdata;
1795         if (!vdevice || !vdevice->vtarget) {
1796                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1797                     "task abort: device has been deleted (sc=%p)\n",
1798                     ioc->name, SCpnt));
1799                 SCpnt->result = DID_NO_CONNECT << 16;
1800                 SCpnt->scsi_done(SCpnt);
1801                 retval = SUCCESS;
1802                 goto out;
1803         }
1804
1805         /* Task aborts are not supported for hidden raid components.
1806          */
1807         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1808                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1809                     "task abort: hidden raid component (sc=%p)\n",
1810                     ioc->name, SCpnt));
1811                 SCpnt->result = DID_RESET << 16;
1812                 retval = FAILED;
1813                 goto out;
1814         }
1815
1816         /* Task aborts are not supported for volumes.
1817          */
1818         if (vdevice->vtarget->raidVolume) {
1819                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1820                     "task abort: raid volume (sc=%p)\n",
1821                     ioc->name, SCpnt));
1822                 SCpnt->result = DID_RESET << 16;
1823                 retval = FAILED;
1824                 goto out;
1825         }
1826
1827         /* Find this command
1828          */
1829         if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1830                 /* Cmd not found in ScsiLookup.
1831                  * Do OS callback.
1832                  */
1833                 SCpnt->result = DID_RESET << 16;
1834                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1835                    "Command not in the active list! (sc=%p)\n", ioc->name,
1836                    SCpnt));
1837                 retval = SUCCESS;
1838                 goto out;
1839         }
1840
1841         if (ioc->timeouts < -1)
1842                 ioc->timeouts++;
1843
1844         if (mpt_fwfault_debug)
1845                 mpt_halt_firmware(ioc);
1846
1847         /* Most important!  Set TaskMsgContext to SCpnt's MsgContext!
1848          * (the IO to be ABORT'd)
1849          *
1850          * NOTE: Since we do not byteswap MsgContext, we do not
1851          *       swap it here either.  It is an opaque cookie to
1852          *       the controller, so it does not matter. -DaveM
1853          */
1854         mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1855         ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1856         retval = mptscsih_IssueTaskMgmt(hd,
1857                          MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1858                          vdevice->vtarget->channel,
1859                          vdevice->vtarget->id, vdevice->lun,
1860                          ctx2abort, mptscsih_get_tm_timeout(ioc));
1861
1862         if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx &&
1863             SCpnt->serial_number == sn) {
1864                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1865                     "task abort: command still in active list! (sc=%p)\n",
1866                     ioc->name, SCpnt));
1867                 retval = FAILED;
1868         } else {
1869                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1870                     "task abort: command cleared from active list! (sc=%p)\n",
1871                     ioc->name, SCpnt));
1872                 retval = SUCCESS;
1873         }
1874
1875  out:
1876         printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p) (sn=%ld)\n",
1877             ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval,
1878             SCpnt, SCpnt->serial_number);
1879
1880         return retval;
1881 }
1882
1883 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1884 /**
1885  *      mptscsih_dev_reset - Perform a SCSI TARGET_RESET!  new_eh variant
1886  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1887  *
1888  *      (linux scsi_host_template.eh_dev_reset_handler routine)
1889  *
1890  *      Returns SUCCESS or FAILED.
1891  **/
1892 int
1893 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1894 {
1895         MPT_SCSI_HOST   *hd;
1896         int              retval;
1897         VirtDevice       *vdevice;
1898         MPT_ADAPTER     *ioc;
1899
1900         /* If we can't locate our host adapter structure, return FAILED status.
1901          */
1902         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1903                 printk(KERN_ERR MYNAM ": target reset: "
1904                    "Can't locate host! (sc=%p)\n", SCpnt);
1905                 return FAILED;
1906         }
1907
1908         ioc = hd->ioc;
1909         printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1910                ioc->name, SCpnt);
1911         scsi_print_command(SCpnt);
1912
1913         vdevice = SCpnt->device->hostdata;
1914         if (!vdevice || !vdevice->vtarget) {
1915                 retval = 0;
1916                 goto out;
1917         }
1918
1919         /* Target reset to hidden raid component is not supported
1920          */
1921         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1922                 retval = FAILED;
1923                 goto out;
1924         }
1925
1926         retval = mptscsih_IssueTaskMgmt(hd,
1927                                 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1928                                 vdevice->vtarget->channel,
1929                                 vdevice->vtarget->id, 0, 0,
1930                                 mptscsih_get_tm_timeout(ioc));
1931
1932  out:
1933         printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1934             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1935
1936         if (retval == 0)
1937                 return SUCCESS;
1938         else
1939                 return FAILED;
1940 }
1941
1942
1943 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1944 /**
1945  *      mptscsih_bus_reset - Perform a SCSI BUS_RESET!  new_eh variant
1946  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1947  *
1948  *      (linux scsi_host_template.eh_bus_reset_handler routine)
1949  *
1950  *      Returns SUCCESS or FAILED.
1951  **/
1952 int
1953 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1954 {
1955         MPT_SCSI_HOST   *hd;
1956         int              retval;
1957         VirtDevice       *vdevice;
1958         MPT_ADAPTER     *ioc;
1959
1960         /* If we can't locate our host adapter structure, return FAILED status.
1961          */
1962         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1963                 printk(KERN_ERR MYNAM ": bus reset: "
1964                    "Can't locate host! (sc=%p)\n", SCpnt);
1965                 return FAILED;
1966         }
1967
1968         ioc = hd->ioc;
1969         printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1970                ioc->name, SCpnt);
1971         scsi_print_command(SCpnt);
1972
1973         if (ioc->timeouts < -1)
1974                 ioc->timeouts++;
1975
1976         vdevice = SCpnt->device->hostdata;
1977         if (!vdevice || !vdevice->vtarget)
1978                 return SUCCESS;
1979         retval = mptscsih_IssueTaskMgmt(hd,
1980                                         MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1981                                         vdevice->vtarget->channel, 0, 0, 0,
1982                                         mptscsih_get_tm_timeout(ioc));
1983
1984         printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1985             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1986
1987         if (retval == 0)
1988                 return SUCCESS;
1989         else
1990                 return FAILED;
1991 }
1992
1993 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1994 /**
1995  *      mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1996  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1997  *
1998  *      (linux scsi_host_template.eh_host_reset_handler routine)
1999  *
2000  *      Returns SUCCESS or FAILED.
2001  */
2002 int
2003 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
2004 {
2005         MPT_SCSI_HOST *  hd;
2006         int              status = SUCCESS;
2007         MPT_ADAPTER     *ioc;
2008         int             retval;
2009
2010         /*  If we can't locate the host to reset, then we failed. */
2011         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
2012                 printk(KERN_ERR MYNAM ": host reset: "
2013                     "Can't locate host! (sc=%p)\n", SCpnt);
2014                 return FAILED;
2015         }
2016
2017         /* make sure we have no outstanding commands at this stage */
2018         mptscsih_flush_running_cmds(hd);
2019
2020         ioc = hd->ioc;
2021         printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
2022             ioc->name, SCpnt);
2023
2024         /*  If our attempts to reset the host failed, then return a failed
2025          *  status.  The host will be taken off line by the SCSI mid-layer.
2026          */
2027     retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
2028         if (retval < 0)
2029                 status = FAILED;
2030         else
2031                 status = SUCCESS;
2032
2033         printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
2034             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
2035
2036         return status;
2037 }
2038
2039 static int
2040 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
2041         SCSITaskMgmtReply_t *pScsiTmReply)
2042 {
2043         u16                      iocstatus;
2044         u32                      termination_count;
2045         int                      retval;
2046
2047         if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
2048                 retval = FAILED;
2049                 goto out;
2050         }
2051
2052         DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
2053
2054         iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2055         termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
2056
2057         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2058             "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n"
2059             "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n"
2060             "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus,
2061             pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus),
2062             le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode,
2063             termination_count));
2064
2065         if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
2066             pScsiTmReply->ResponseCode)
2067                 mptscsih_taskmgmt_response_code(ioc,
2068                     pScsiTmReply->ResponseCode);
2069
2070         if (iocstatus == MPI_IOCSTATUS_SUCCESS) {
2071                 retval = 0;
2072                 goto out;
2073         }
2074
2075         retval = FAILED;
2076         if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
2077                 if (termination_count == 1)
2078                         retval = 0;
2079                 goto out;
2080         }
2081
2082         if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
2083            iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
2084                 retval = 0;
2085
2086  out:
2087         return retval;
2088 }
2089
2090 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2091 void
2092 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2093 {
2094         char *desc;
2095
2096         switch (response_code) {
2097         case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2098                 desc = "The task completed.";
2099                 break;
2100         case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2101                 desc = "The IOC received an invalid frame status.";
2102                 break;
2103         case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2104                 desc = "The task type is not supported.";
2105                 break;
2106         case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2107                 desc = "The requested task failed.";
2108                 break;
2109         case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2110                 desc = "The task completed successfully.";
2111                 break;
2112         case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2113                 desc = "The LUN request is invalid.";
2114                 break;
2115         case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2116                 desc = "The task is in the IOC queue and has not been sent to target.";
2117                 break;
2118         default:
2119                 desc = "unknown";
2120                 break;
2121         }
2122         printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2123                 ioc->name, response_code, desc);
2124 }
2125 EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
2126
2127 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2128 /**
2129  *      mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2130  *      @ioc: Pointer to MPT_ADAPTER structure
2131  *      @mf: Pointer to SCSI task mgmt request frame
2132  *      @mr: Pointer to SCSI task mgmt reply frame
2133  *
2134  *      This routine is called from mptbase.c::mpt_interrupt() at the completion
2135  *      of any SCSI task management request.
2136  *      This routine is registered with the MPT (base) driver at driver
2137  *      load/init time via the mpt_register() API call.
2138  *
2139  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2140  **/
2141 int
2142 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf,
2143         MPT_FRAME_HDR *mr)
2144 {
2145         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2146                 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr));
2147
2148         ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2149
2150         if (!mr)
2151                 goto out;
2152
2153         ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2154         memcpy(ioc->taskmgmt_cmds.reply, mr,
2155             min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
2156  out:
2157         if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
2158                 mpt_clear_taskmgmt_in_progress_flag(ioc);
2159                 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2160                 complete(&ioc->taskmgmt_cmds.done);
2161                 if (ioc->bus_type == SAS)
2162                         ioc->schedule_target_reset(ioc);
2163                 return 1;
2164         }
2165         return 0;
2166 }
2167
2168 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2169 /*
2170  *      This is anyones guess quite frankly.
2171  */
2172 int
2173 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2174                 sector_t capacity, int geom[])
2175 {
2176         int             heads;
2177         int             sectors;
2178         sector_t        cylinders;
2179         ulong           dummy;
2180
2181         heads = 64;
2182         sectors = 32;
2183
2184         dummy = heads * sectors;
2185         cylinders = capacity;
2186         sector_div(cylinders,dummy);
2187
2188         /*
2189          * Handle extended translation size for logical drives
2190          * > 1Gb
2191          */
2192         if ((ulong)capacity >= 0x200000) {
2193                 heads = 255;
2194                 sectors = 63;
2195                 dummy = heads * sectors;
2196                 cylinders = capacity;
2197                 sector_div(cylinders,dummy);
2198         }
2199
2200         /* return result */
2201         geom[0] = heads;
2202         geom[1] = sectors;
2203         geom[2] = cylinders;
2204
2205         return 0;
2206 }
2207
2208 /* Search IOC page 3 to determine if this is hidden physical disk
2209  *
2210  */
2211 int
2212 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2213 {
2214         struct inactive_raid_component_info *component_info;
2215         int i, j;
2216         RaidPhysDiskPage1_t *phys_disk;
2217         int rc = 0;
2218         int num_paths;
2219
2220         if (!ioc->raid_data.pIocPg3)
2221                 goto out;
2222         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2223                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2224                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2225                         rc = 1;
2226                         goto out;
2227                 }
2228         }
2229
2230         if (ioc->bus_type != SAS)
2231                 goto out;
2232
2233         /*
2234          * Check if dual path
2235          */
2236         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2237                 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2238                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2239                 if (num_paths < 2)
2240                         continue;
2241                 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2242                    (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2243                 if (!phys_disk)
2244                         continue;
2245                 if ((mpt_raid_phys_disk_pg1(ioc,
2246                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2247                     phys_disk))) {
2248                         kfree(phys_disk);
2249                         continue;
2250                 }
2251                 for (j = 0; j < num_paths; j++) {
2252                         if ((phys_disk->Path[j].Flags &
2253                             MPI_RAID_PHYSDISK1_FLAG_INVALID))
2254                                 continue;
2255                         if ((phys_disk->Path[j].Flags &
2256                             MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2257                                 continue;
2258                         if ((id == phys_disk->Path[j].PhysDiskID) &&
2259                             (channel == phys_disk->Path[j].PhysDiskBus)) {
2260                                 rc = 1;
2261                                 kfree(phys_disk);
2262                                 goto out;
2263                         }
2264                 }
2265                 kfree(phys_disk);
2266         }
2267
2268
2269         /*
2270          * Check inactive list for matching phys disks
2271          */
2272         if (list_empty(&ioc->raid_data.inactive_list))
2273                 goto out;
2274
2275         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2276         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2277             list) {
2278                 if ((component_info->d.PhysDiskID == id) &&
2279                     (component_info->d.PhysDiskBus == channel))
2280                         rc = 1;
2281         }
2282         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2283
2284  out:
2285         return rc;
2286 }
2287 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2288
2289 u8
2290 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2291 {
2292         struct inactive_raid_component_info *component_info;
2293         int i, j;
2294         RaidPhysDiskPage1_t *phys_disk;
2295         int rc = -ENXIO;
2296         int num_paths;
2297
2298         if (!ioc->raid_data.pIocPg3)
2299                 goto out;
2300         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2301                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2302                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2303                         rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2304                         goto out;
2305                 }
2306         }
2307
2308         if (ioc->bus_type != SAS)
2309                 goto out;
2310
2311         /*
2312          * Check if dual path
2313          */
2314         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2315                 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2316                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2317                 if (num_paths < 2)
2318                         continue;
2319                 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2320                    (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2321                 if (!phys_disk)
2322                         continue;
2323                 if ((mpt_raid_phys_disk_pg1(ioc,
2324                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2325                     phys_disk))) {
2326                         kfree(phys_disk);
2327                         continue;
2328                 }
2329                 for (j = 0; j < num_paths; j++) {
2330                         if ((phys_disk->Path[j].Flags &
2331                             MPI_RAID_PHYSDISK1_FLAG_INVALID))
2332                                 continue;
2333                         if ((phys_disk->Path[j].Flags &
2334                             MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2335                                 continue;
2336                         if ((id == phys_disk->Path[j].PhysDiskID) &&
2337                             (channel == phys_disk->Path[j].PhysDiskBus)) {
2338                                 rc = phys_disk->PhysDiskNum;
2339                                 kfree(phys_disk);
2340                                 goto out;
2341                         }
2342                 }
2343                 kfree(phys_disk);
2344         }
2345
2346         /*
2347          * Check inactive list for matching phys disks
2348          */
2349         if (list_empty(&ioc->raid_data.inactive_list))
2350                 goto out;
2351
2352         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2353         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2354             list) {
2355                 if ((component_info->d.PhysDiskID == id) &&
2356                     (component_info->d.PhysDiskBus == channel))
2357                         rc = component_info->d.PhysDiskNum;
2358         }
2359         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2360
2361  out:
2362         return rc;
2363 }
2364 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2365
2366 /*
2367  *      OS entry point to allow for host driver to free allocated memory
2368  *      Called if no device present or device being unloaded
2369  */
2370 void
2371 mptscsih_slave_destroy(struct scsi_device *sdev)
2372 {
2373         struct Scsi_Host        *host = sdev->host;
2374         MPT_SCSI_HOST           *hd = shost_priv(host);
2375         VirtTarget              *vtarget;
2376         VirtDevice              *vdevice;
2377         struct scsi_target      *starget;
2378
2379         starget = scsi_target(sdev);
2380         vtarget = starget->hostdata;
2381         vdevice = sdev->hostdata;
2382         if (!vdevice)
2383                 return;
2384
2385         mptscsih_search_running_cmds(hd, vdevice);
2386         vtarget->num_luns--;
2387         mptscsih_synchronize_cache(hd, vdevice);
2388         kfree(vdevice);
2389         sdev->hostdata = NULL;
2390 }
2391
2392 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2393 /*
2394  *      mptscsih_change_queue_depth - This function will set a devices queue depth
2395  *      @sdev: per scsi_device pointer
2396  *      @qdepth: requested queue depth
2397  *      @reason: calling context
2398  *
2399  *      Adding support for new 'change_queue_depth' api.
2400 */
2401 int
2402 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
2403 {
2404         MPT_SCSI_HOST           *hd = shost_priv(sdev->host);
2405         VirtTarget              *vtarget;
2406         struct scsi_target      *starget;
2407         int                     max_depth;
2408         int                     tagged;
2409         MPT_ADAPTER             *ioc = hd->ioc;
2410
2411         starget = scsi_target(sdev);
2412         vtarget = starget->hostdata;
2413
2414         if (reason != SCSI_QDEPTH_DEFAULT)
2415                 return -EOPNOTSUPP;
2416
2417         if (ioc->bus_type == SPI) {
2418                 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2419                         max_depth = 1;
2420                 else if (sdev->type == TYPE_DISK &&
2421                          vtarget->minSyncFactor <= MPT_ULTRA160)
2422                         max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2423                 else
2424                         max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2425         } else
2426                  max_depth = ioc->sh->can_queue;
2427
2428         if (!sdev->tagged_supported)
2429                 max_depth = 1;
2430
2431         if (qdepth > max_depth)
2432                 qdepth = max_depth;
2433         if (qdepth == 1)
2434                 tagged = 0;
2435         else
2436                 tagged = MSG_SIMPLE_TAG;
2437
2438         scsi_adjust_queue_depth(sdev, tagged, qdepth);
2439         return sdev->queue_depth;
2440 }
2441
2442 /*
2443  *      OS entry point to adjust the queue_depths on a per-device basis.
2444  *      Called once per device the bus scan. Use it to force the queue_depth
2445  *      member to 1 if a device does not support Q tags.
2446  *      Return non-zero if fails.
2447  */
2448 int
2449 mptscsih_slave_configure(struct scsi_device *sdev)
2450 {
2451         struct Scsi_Host        *sh = sdev->host;
2452         VirtTarget              *vtarget;
2453         VirtDevice              *vdevice;
2454         struct scsi_target      *starget;
2455         MPT_SCSI_HOST           *hd = shost_priv(sh);
2456         MPT_ADAPTER             *ioc = hd->ioc;
2457
2458         starget = scsi_target(sdev);
2459         vtarget = starget->hostdata;
2460         vdevice = sdev->hostdata;
2461
2462         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2463                 "device @ %p, channel=%d, id=%d, lun=%d\n",
2464                 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2465         if (ioc->bus_type == SPI)
2466                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2467                     "sdtr %d wdtr %d ppr %d inq length=%d\n",
2468                     ioc->name, sdev->sdtr, sdev->wdtr,
2469                     sdev->ppr, sdev->inquiry_len));
2470
2471         vdevice->configured_lun = 1;
2472
2473         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2474                 "Queue depth=%d, tflags=%x\n",
2475                 ioc->name, sdev->queue_depth, vtarget->tflags));
2476
2477         if (ioc->bus_type == SPI)
2478                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2479                     "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2480                     ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2481                     vtarget->minSyncFactor));
2482
2483         mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH,
2484                                     SCSI_QDEPTH_DEFAULT);
2485         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2486                 "tagged %d, simple %d, ordered %d\n",
2487                 ioc->name,sdev->tagged_supported, sdev->simple_tags,
2488                 sdev->ordered_tags));
2489
2490         blk_queue_dma_alignment (sdev->request_queue, 512 - 1);
2491
2492         return 0;
2493 }
2494
2495 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2496 /*
2497  *  Private routines...
2498  */
2499
2500 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2501 /* Utility function to copy sense data from the scsi_cmnd buffer
2502  * to the FC and SCSI target structures.
2503  *
2504  */
2505 static void
2506 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2507 {
2508         VirtDevice      *vdevice;
2509         SCSIIORequest_t *pReq;
2510         u32              sense_count = le32_to_cpu(pScsiReply->SenseCount);
2511         MPT_ADAPTER     *ioc = hd->ioc;
2512
2513         /* Get target structure
2514          */
2515         pReq = (SCSIIORequest_t *) mf;
2516         vdevice = sc->device->hostdata;
2517
2518         if (sense_count) {
2519                 u8 *sense_data;
2520                 int req_index;
2521
2522                 /* Copy the sense received into the scsi command block. */
2523                 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2524                 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2525                 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2526
2527                 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2528                  */
2529                 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2530                         if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2531                                 int idx;
2532
2533                                 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2534                                 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2535                                 ioc->events[idx].eventContext = ioc->eventContext;
2536
2537                                 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2538                                         (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2539                                         (sc->device->channel << 8) | sc->device->id;
2540
2541                                 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2542
2543                                 ioc->eventContext++;
2544                                 if (ioc->pcidev->vendor ==
2545                                     PCI_VENDOR_ID_IBM) {
2546                                         mptscsih_issue_sep_command(ioc,
2547                                             vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2548                                         vdevice->vtarget->tflags |=
2549                                             MPT_TARGET_FLAGS_LED_ON;
2550                                 }
2551                         }
2552                 }
2553         } else {
2554                 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2555                                 ioc->name));
2556         }
2557 }
2558
2559 /**
2560  * mptscsih_get_scsi_lookup - retrieves scmd entry
2561  * @ioc: Pointer to MPT_ADAPTER structure
2562  * @i: index into the array
2563  *
2564  * Returns the scsi_cmd pointer
2565  */
2566 struct scsi_cmnd *
2567 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2568 {
2569         unsigned long   flags;
2570         struct scsi_cmnd *scmd;
2571
2572         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2573         scmd = ioc->ScsiLookup[i];
2574         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2575
2576         return scmd;
2577 }
2578 EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
2579
2580 /**
2581  * mptscsih_getclear_scsi_lookup -  retrieves and clears scmd entry from ScsiLookup[] array list
2582  * @ioc: Pointer to MPT_ADAPTER structure
2583  * @i: index into the array
2584  *
2585  * Returns the scsi_cmd pointer
2586  *
2587  **/
2588 static struct scsi_cmnd *
2589 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2590 {
2591         unsigned long   flags;
2592         struct scsi_cmnd *scmd;
2593
2594         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2595         scmd = ioc->ScsiLookup[i];
2596         ioc->ScsiLookup[i] = NULL;
2597         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2598
2599         return scmd;
2600 }
2601
2602 /**
2603  * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list
2604  *
2605  * @ioc: Pointer to MPT_ADAPTER structure
2606  * @i: index into the array
2607  * @scmd: scsi_cmnd pointer
2608  *
2609  **/
2610 static void
2611 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2612 {
2613         unsigned long   flags;
2614
2615         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2616         ioc->ScsiLookup[i] = scmd;
2617         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2618 }
2619
2620 /**
2621  * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2622  * @ioc: Pointer to MPT_ADAPTER structure
2623  * @sc: scsi_cmnd pointer
2624  */
2625 static int
2626 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2627 {
2628         unsigned long   flags;
2629         int i, index=-1;
2630
2631         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2632         for (i = 0; i < ioc->req_depth; i++) {
2633                 if (ioc->ScsiLookup[i] == sc) {
2634                         index = i;
2635                         goto out;
2636                 }
2637         }
2638
2639  out:
2640         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2641         return index;
2642 }
2643
2644 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2645 int
2646 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2647 {
2648         MPT_SCSI_HOST   *hd;
2649
2650         if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2651                 return 0;
2652
2653         hd = shost_priv(ioc->sh);
2654         switch (reset_phase) {
2655         case MPT_IOC_SETUP_RESET:
2656                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2657                     "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
2658                 break;
2659         case MPT_IOC_PRE_RESET:
2660                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2661                     "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
2662                 mptscsih_flush_running_cmds(hd);
2663                 break;
2664         case MPT_IOC_POST_RESET:
2665                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2666                     "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
2667                 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) {
2668                         ioc->internal_cmds.status |=
2669                                 MPT_MGMT_STATUS_DID_IOCRESET;
2670                         complete(&ioc->internal_cmds.done);
2671                 }
2672                 break;
2673         default:
2674                 break;
2675         }
2676         return 1;               /* currently means nothing really */
2677 }
2678
2679 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2680 int
2681 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2682 {
2683         u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2684
2685         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2686                 "MPT event (=%02Xh) routed to SCSI host driver!\n",
2687                 ioc->name, event));
2688
2689         if ((event == MPI_EVENT_IOC_BUS_RESET ||
2690             event == MPI_EVENT_EXT_BUS_RESET) &&
2691             (ioc->bus_type == SPI) && (ioc->soft_resets < -1))
2692                         ioc->soft_resets++;
2693
2694         return 1;               /* currently means nothing really */
2695 }
2696
2697 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2698 /*
2699  *  Bus Scan and Domain Validation functionality ...
2700  */
2701
2702 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2703 /*
2704  *      mptscsih_scandv_complete - Scan and DV callback routine registered
2705  *      to Fustion MPT (base) driver.
2706  *
2707  *      @ioc: Pointer to MPT_ADAPTER structure
2708  *      @mf: Pointer to original MPT request frame
2709  *      @mr: Pointer to MPT reply frame (NULL if TurboReply)
2710  *
2711  *      This routine is called from mpt.c::mpt_interrupt() at the completion
2712  *      of any SCSI IO request.
2713  *      This routine is registered with the Fusion MPT (base) driver at driver
2714  *      load/init time via the mpt_register() API call.
2715  *
2716  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2717  *
2718  *      Remark: Sets a completion code and (possibly) saves sense data
2719  *      in the IOC member localReply structure.
2720  *      Used ONLY for DV and other internal commands.
2721  */
2722 int
2723 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2724                                 MPT_FRAME_HDR *reply)
2725 {
2726         SCSIIORequest_t *pReq;
2727         SCSIIOReply_t   *pReply;
2728         u8               cmd;
2729         u16              req_idx;
2730         u8      *sense_data;
2731         int              sz;
2732
2733         ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2734         ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD;
2735         if (!reply)
2736                 goto out;
2737
2738         pReply = (SCSIIOReply_t *) reply;
2739         pReq = (SCSIIORequest_t *) req;
2740         ioc->internal_cmds.completion_code =
2741             mptscsih_get_completion_code(ioc, req, reply);
2742         ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2743         memcpy(ioc->internal_cmds.reply, reply,
2744             min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength));
2745         cmd = reply->u.hdr.Function;
2746         if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
2747             (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) &&
2748             (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
2749                 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
2750                 sense_data = ((u8 *)ioc->sense_buf_pool +
2751                     (req_idx * MPT_SENSE_BUFFER_ALLOC));
2752                 sz = min_t(int, pReq->SenseBufferLength,
2753                     MPT_SENSE_BUFFER_ALLOC);
2754                 memcpy(ioc->internal_cmds.sense, sense_data, sz);
2755         }
2756  out:
2757         if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING))
2758                 return 0;
2759         ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2760         complete(&ioc->internal_cmds.done);
2761         return 1;
2762 }
2763
2764
2765 /**
2766  *      mptscsih_get_completion_code - get completion code from MPT request
2767  *      @ioc: Pointer to MPT_ADAPTER structure
2768  *      @req: Pointer to original MPT request frame
2769  *      @reply: Pointer to MPT reply frame (NULL if TurboReply)
2770  *
2771  **/
2772 static int
2773 mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2774                                 MPT_FRAME_HDR *reply)
2775 {
2776         SCSIIOReply_t   *pReply;
2777         MpiRaidActionReply_t *pr;
2778         u8               scsi_status;
2779         u16              status;
2780         int              completion_code;
2781
2782         pReply = (SCSIIOReply_t *)reply;
2783         status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2784         scsi_status = pReply->SCSIStatus;
2785
2786         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2787             "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh,"
2788             "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState,
2789             scsi_status, le32_to_cpu(pReply->IOCLogInfo)));
2790
2791         switch (status) {
2792
2793         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
2794                 completion_code = MPT_SCANDV_SELECTION_TIMEOUT;
2795                 break;
2796
2797         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
2798         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
2799         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
2800         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
2801                 completion_code = MPT_SCANDV_DID_RESET;
2802                 break;
2803
2804         case MPI_IOCSTATUS_BUSY:
2805         case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
2806                 completion_code = MPT_SCANDV_BUSY;
2807                 break;
2808
2809         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
2810         case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
2811         case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
2812                 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2813                         completion_code = MPT_SCANDV_GOOD;
2814                 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2815                         pr = (MpiRaidActionReply_t *)reply;
2816                         if (le16_to_cpu(pr->ActionStatus) ==
2817                                 MPI_RAID_ACTION_ASTATUS_SUCCESS)
2818                                 completion_code = MPT_SCANDV_GOOD;
2819                         else
2820                                 completion_code = MPT_SCANDV_SOME_ERROR;
2821                 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)
2822                         completion_code = MPT_SCANDV_SENSE;
2823                 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2824                         if (req->u.scsireq.CDB[0] == INQUIRY)
2825                                 completion_code = MPT_SCANDV_ISSUE_SENSE;
2826                         else
2827                                 completion_code = MPT_SCANDV_DID_RESET;
2828                 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2829                         completion_code = MPT_SCANDV_DID_RESET;
2830                 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2831                         completion_code = MPT_SCANDV_DID_RESET;
2832                 else if (scsi_status == MPI_SCSI_STATUS_BUSY)
2833                         completion_code = MPT_SCANDV_BUSY;
2834                 else
2835                         completion_code = MPT_SCANDV_GOOD;
2836                 break;
2837
2838         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
2839                 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2840                         completion_code = MPT_SCANDV_DID_RESET;
2841                 else
2842                         completion_code = MPT_SCANDV_SOME_ERROR;
2843                 break;
2844         default:
2845                 completion_code = MPT_SCANDV_SOME_ERROR;
2846                 break;
2847
2848         }       /* switch(status) */
2849
2850         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2851             "  completionCode set to %08xh\n", ioc->name, completion_code));
2852         return completion_code;
2853 }
2854
2855 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2856 /**
2857  *      mptscsih_do_cmd - Do internal command.
2858  *      @hd: MPT_SCSI_HOST pointer
2859  *      @io: INTERNAL_CMD pointer.
2860  *
2861  *      Issue the specified internally generated command and do command
2862  *      specific cleanup. For bus scan / DV only.
2863  *      NOTES: If command is Inquiry and status is good,
2864  *      initialize a target structure, save the data
2865  *
2866  *      Remark: Single threaded access only.
2867  *
2868  *      Return:
2869  *              < 0 if an illegal command or no resources
2870  *
2871  *                 0 if good
2872  *
2873  *               > 0 if command complete but some type of completion error.
2874  */
2875 static int
2876 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2877 {
2878         MPT_FRAME_HDR   *mf;
2879         SCSIIORequest_t *pScsiReq;
2880         int              my_idx, ii, dir;
2881         int              timeout;
2882         char             cmdLen;
2883         char             CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2884         u8               cmd = io->cmd;
2885         MPT_ADAPTER *ioc = hd->ioc;
2886         int              ret = 0;
2887         unsigned long    timeleft;
2888         unsigned long    flags;
2889
2890         /* don't send internal command during diag reset */
2891         spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
2892         if (ioc->ioc_reset_in_progress) {
2893                 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2894                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2895                         "%s: busy with host reset\n", ioc->name, __func__));
2896                 return MPT_SCANDV_BUSY;
2897         }
2898         spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2899
2900         mutex_lock(&ioc->internal_cmds.mutex);
2901
2902         /* Set command specific information
2903          */
2904         switch (cmd) {
2905         case INQUIRY:
2906                 cmdLen = 6;
2907                 dir = MPI_SCSIIO_CONTROL_READ;
2908                 CDB[0] = cmd;
2909                 CDB[4] = io->size;
2910                 timeout = 10;
2911                 break;
2912
2913         case TEST_UNIT_READY:
2914                 cmdLen = 6;
2915                 dir = MPI_SCSIIO_CONTROL_READ;
2916                 timeout = 10;
2917                 break;
2918
2919         case START_STOP:
2920                 cmdLen = 6;
2921                 dir = MPI_SCSIIO_CONTROL_READ;
2922                 CDB[0] = cmd;
2923                 CDB[4] = 1;     /*Spin up the disk */
2924                 timeout = 15;
2925                 break;
2926
2927         case REQUEST_SENSE:
2928                 cmdLen = 6;
2929                 CDB[0] = cmd;
2930                 CDB[4] = io->size;
2931                 dir = MPI_SCSIIO_CONTROL_READ;
2932                 timeout = 10;
2933                 break;
2934
2935         case READ_BUFFER:
2936                 cmdLen = 10;
2937                 dir = MPI_SCSIIO_CONTROL_READ;
2938                 CDB[0] = cmd;
2939                 if (io->flags & MPT_ICFLAG_ECHO) {
2940                         CDB[1] = 0x0A;
2941                 } else {
2942                         CDB[1] = 0x02;
2943                 }
2944
2945                 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2946                         CDB[1] |= 0x01;
2947                 }
2948                 CDB[6] = (io->size >> 16) & 0xFF;
2949                 CDB[7] = (io->size >>  8) & 0xFF;
2950                 CDB[8] = io->size & 0xFF;
2951                 timeout = 10;
2952                 break;
2953
2954         case WRITE_BUFFER:
2955                 cmdLen = 10;
2956                 dir = MPI_SCSIIO_CONTROL_WRITE;
2957                 CDB[0] = cmd;
2958                 if (io->flags & MPT_ICFLAG_ECHO) {
2959                         CDB[1] = 0x0A;
2960                 } else {
2961                         CDB[1] = 0x02;
2962                 }
2963                 CDB[6] = (io->size >> 16) & 0xFF;
2964                 CDB[7] = (io->size >>  8) & 0xFF;
2965                 CDB[8] = io->size & 0xFF;
2966                 timeout = 10;
2967                 break;
2968
2969         case RESERVE:
2970                 cmdLen = 6;
2971                 dir = MPI_SCSIIO_CONTROL_READ;
2972                 CDB[0] = cmd;
2973                 timeout = 10;
2974                 break;
2975
2976         case RELEASE:
2977                 cmdLen = 6;
2978                 dir = MPI_SCSIIO_CONTROL_READ;
2979                 CDB[0] = cmd;
2980                 timeout = 10;
2981                 break;
2982
2983         case SYNCHRONIZE_CACHE:
2984                 cmdLen = 10;
2985                 dir = MPI_SCSIIO_CONTROL_READ;
2986                 CDB[0] = cmd;
2987 //              CDB[1] = 0x02;  /* set immediate bit */
2988                 timeout = 10;
2989                 break;
2990
2991         default:
2992                 /* Error Case */
2993                 ret = -EFAULT;
2994                 goto out;
2995         }
2996
2997         /* Get and Populate a free Frame
2998          * MsgContext set in mpt_get_msg_frame call
2999          */
3000         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
3001                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n",
3002                     ioc->name, __func__));
3003                 ret = MPT_SCANDV_BUSY;
3004                 goto out;
3005         }
3006
3007         pScsiReq = (SCSIIORequest_t *) mf;
3008
3009         /* Get the request index */
3010         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
3011         ADD_INDEX_LOG(my_idx); /* for debug */
3012
3013         if (io->flags & MPT_ICFLAG_PHYS_DISK) {
3014                 pScsiReq->TargetID = io->physDiskNum;
3015                 pScsiReq->Bus = 0;
3016                 pScsiReq->ChainOffset = 0;
3017                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3018         } else {
3019                 pScsiReq->TargetID = io->id;
3020                 pScsiReq->Bus = io->channel;
3021                 pScsiReq->ChainOffset = 0;
3022                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
3023         }
3024
3025         pScsiReq->CDBLength = cmdLen;
3026         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
3027
3028         pScsiReq->Reserved = 0;
3029
3030         pScsiReq->MsgFlags = mpt_msg_flags(ioc);
3031         /* MsgContext set in mpt_get_msg_fram call  */
3032
3033         int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
3034
3035         if (io->flags & MPT_ICFLAG_TAGGED_CMD)
3036                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
3037         else
3038                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3039
3040         if (cmd == REQUEST_SENSE) {
3041                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3042                 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
3043                     "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd));
3044         }
3045
3046         for (ii = 0; ii < 16; ii++)
3047                 pScsiReq->CDB[ii] = CDB[ii];
3048
3049         pScsiReq->DataLength = cpu_to_le32(io->size);
3050         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
3051                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
3052
3053         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
3054             "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%d\n",
3055             ioc->name, __func__, cmd, io->channel, io->id, io->lun));
3056
3057         if (dir == MPI_SCSIIO_CONTROL_READ)
3058                 ioc->add_sge((char *) &pScsiReq->SGL,
3059                     MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma);
3060         else
3061                 ioc->add_sge((char *) &pScsiReq->SGL,
3062                     MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma);
3063
3064         INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
3065         mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
3066         timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done,
3067             timeout*HZ);
3068         if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
3069                 ret = MPT_SCANDV_DID_RESET;
3070                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
3071                     "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__,
3072                     cmd));
3073                 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
3074                         mpt_free_msg_frame(ioc, mf);
3075                         goto out;
3076                 }
3077                 if (!timeleft) {
3078                         printk(MYIOC_s_WARN_FMT
3079                                "Issuing Reset from %s!! doorbell=0x%08xh"
3080                                " cmd=0x%02x\n",
3081                                ioc->name, __func__, mpt_GetIocState(ioc, 0),
3082                                cmd);
3083                         mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
3084                         mpt_free_msg_frame(ioc, mf);
3085                 }
3086                 goto out;
3087         }
3088
3089         ret = ioc->internal_cmds.completion_code;
3090         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n",
3091                         ioc->name, __func__, ret));
3092
3093  out:
3094         CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
3095         mutex_unlock(&ioc->internal_cmds.mutex);
3096         return ret;
3097 }
3098
3099 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3100 /**
3101  *      mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3102  *      @hd: Pointer to a SCSI HOST structure
3103  *      @vdevice: virtual target device
3104  *
3105  *      Uses the ISR, but with special processing.
3106  *      MUST be single-threaded.
3107  *
3108  */
3109 static void
3110 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3111 {
3112         INTERNAL_CMD             iocmd;
3113
3114         /* Ignore hidden raid components, this is handled when the command
3115          * is sent to the volume
3116          */
3117         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3118                 return;
3119
3120         if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3121             !vdevice->configured_lun)
3122                 return;
3123
3124         /* Following parameters will not change
3125          * in this routine.
3126          */
3127         iocmd.cmd = SYNCHRONIZE_CACHE;
3128         iocmd.flags = 0;
3129         iocmd.physDiskNum = -1;
3130         iocmd.data = NULL;
3131         iocmd.data_dma = -1;
3132         iocmd.size = 0;
3133         iocmd.rsvd = iocmd.rsvd2 = 0;
3134         iocmd.channel = vdevice->vtarget->channel;
3135         iocmd.id = vdevice->vtarget->id;
3136         iocmd.lun = vdevice->lun;
3137
3138         mptscsih_do_cmd(hd, &iocmd);
3139 }
3140
3141 static ssize_t
3142 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3143                          char *buf)
3144 {
3145         struct Scsi_Host *host = class_to_shost(dev);
3146         MPT_SCSI_HOST   *hd = shost_priv(host);
3147         MPT_ADAPTER *ioc = hd->ioc;
3148
3149         return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3150             (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3151             (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3152             (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3153             ioc->facts.FWVersion.Word & 0x000000FF);
3154 }
3155 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3156
3157 static ssize_t
3158 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3159                            char *buf)
3160 {
3161         struct Scsi_Host *host = class_to_shost(dev);
3162         MPT_SCSI_HOST   *hd = shost_priv(host);
3163         MPT_ADAPTER *ioc = hd->ioc;
3164
3165         return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3166             (ioc->biosVersion & 0xFF000000) >> 24,
3167             (ioc->biosVersion & 0x00FF0000) >> 16,
3168             (ioc->biosVersion & 0x0000FF00) >> 8,
3169             ioc->biosVersion & 0x000000FF);
3170 }
3171 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3172
3173 static ssize_t
3174 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3175                           char *buf)
3176 {
3177         struct Scsi_Host *host = class_to_shost(dev);
3178         MPT_SCSI_HOST   *hd = shost_priv(host);
3179         MPT_ADAPTER *ioc = hd->ioc;
3180
3181         return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3182 }
3183 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3184
3185 static ssize_t
3186 mptscsih_version_product_show(struct device *dev,
3187                               struct device_attribute *attr,
3188 char *buf)
3189 {
3190         struct Scsi_Host *host = class_to_shost(dev);
3191         MPT_SCSI_HOST   *hd = shost_priv(host);
3192         MPT_ADAPTER *ioc = hd->ioc;
3193
3194         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3195 }
3196 static DEVICE_ATTR(version_product, S_IRUGO,
3197     mptscsih_version_product_show, NULL);
3198
3199 static ssize_t
3200 mptscsih_version_nvdata_persistent_show(struct device *dev,
3201                                         struct device_attribute *attr,
3202                                         char *buf)
3203 {
3204         struct Scsi_Host *host = class_to_shost(dev);
3205         MPT_SCSI_HOST   *hd = shost_priv(host);
3206         MPT_ADAPTER *ioc = hd->ioc;
3207
3208         return snprintf(buf, PAGE_SIZE, "%02xh\n",
3209             ioc->nvdata_version_persistent);
3210 }
3211 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3212     mptscsih_version_nvdata_persistent_show, NULL);
3213
3214 static ssize_t
3215 mptscsih_version_nvdata_default_show(struct device *dev,
3216                                      struct device_attribute *attr, char *buf)
3217 {
3218         struct Scsi_Host *host = class_to_shost(dev);
3219         MPT_SCSI_HOST   *hd = shost_priv(host);
3220         MPT_ADAPTER *ioc = hd->ioc;
3221
3222         return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3223 }
3224 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3225     mptscsih_version_nvdata_default_show, NULL);
3226
3227 static ssize_t
3228 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3229                          char *buf)
3230 {
3231         struct Scsi_Host *host = class_to_shost(dev);
3232         MPT_SCSI_HOST   *hd = shost_priv(host);
3233         MPT_ADAPTER *ioc = hd->ioc;
3234
3235         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3236 }
3237 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3238
3239 static ssize_t
3240 mptscsih_board_assembly_show(struct device *dev,
3241                              struct device_attribute *attr, char *buf)
3242 {
3243         struct Scsi_Host *host = class_to_shost(dev);
3244         MPT_SCSI_HOST   *hd = shost_priv(host);
3245         MPT_ADAPTER *ioc = hd->ioc;
3246
3247         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3248 }
3249 static DEVICE_ATTR(board_assembly, S_IRUGO,
3250     mptscsih_board_assembly_show, NULL);
3251
3252 static ssize_t
3253 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3254                            char *buf)
3255 {
3256         struct Scsi_Host *host = class_to_shost(dev);
3257         MPT_SCSI_HOST   *hd = shost_priv(host);
3258         MPT_ADAPTER *ioc = hd->ioc;
3259
3260         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3261 }
3262 static DEVICE_ATTR(board_tracer, S_IRUGO,
3263     mptscsih_board_tracer_show, NULL);
3264
3265 static ssize_t
3266 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3267                        char *buf)
3268 {
3269         struct Scsi_Host *host = class_to_shost(dev);
3270         MPT_SCSI_HOST   *hd = shost_priv(host);
3271         MPT_ADAPTER *ioc = hd->ioc;
3272
3273         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3274 }
3275 static DEVICE_ATTR(io_delay, S_IRUGO,
3276     mptscsih_io_delay_show, NULL);
3277
3278 static ssize_t
3279 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3280                            char *buf)
3281 {
3282         struct Scsi_Host *host = class_to_shost(dev);
3283         MPT_SCSI_HOST   *hd = shost_priv(host);
3284         MPT_ADAPTER *ioc = hd->ioc;
3285
3286         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3287 }
3288 static DEVICE_ATTR(device_delay, S_IRUGO,
3289     mptscsih_device_delay_show, NULL);
3290
3291 static ssize_t
3292 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3293                           char *buf)
3294 {
3295         struct Scsi_Host *host = class_to_shost(dev);
3296         MPT_SCSI_HOST   *hd = shost_priv(host);
3297         MPT_ADAPTER *ioc = hd->ioc;
3298
3299         return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3300 }
3301 static ssize_t
3302 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3303                            const char *buf, size_t count)
3304 {
3305         struct Scsi_Host *host = class_to_shost(dev);
3306         MPT_SCSI_HOST   *hd = shost_priv(host);
3307         MPT_ADAPTER *ioc = hd->ioc;
3308         int val = 0;
3309
3310         if (sscanf(buf, "%x", &val) != 1)
3311                 return -EINVAL;
3312
3313         ioc->debug_level = val;
3314         printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3315                                 ioc->name, ioc->debug_level);
3316         return strlen(buf);
3317 }
3318 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3319         mptscsih_debug_level_show, mptscsih_debug_level_store);
3320
3321 struct device_attribute *mptscsih_host_attrs[] = {
3322         &dev_attr_version_fw,
3323         &dev_attr_version_bios,
3324         &dev_attr_version_mpi,
3325         &dev_attr_version_product,
3326         &dev_attr_version_nvdata_persistent,
3327         &dev_attr_version_nvdata_default,
3328         &dev_attr_board_name,
3329         &dev_attr_board_assembly,
3330         &dev_attr_board_tracer,
3331         &dev_attr_io_delay,
3332         &dev_attr_device_delay,
3333         &dev_attr_debug_level,
3334         NULL,
3335 };
3336
3337 EXPORT_SYMBOL(mptscsih_host_attrs);
3338
3339 EXPORT_SYMBOL(mptscsih_remove);
3340 EXPORT_SYMBOL(mptscsih_shutdown);
3341 #ifdef CONFIG_PM
3342 EXPORT_SYMBOL(mptscsih_suspend);
3343 EXPORT_SYMBOL(mptscsih_resume);
3344 #endif
3345 EXPORT_SYMBOL(mptscsih_proc_info);
3346 EXPORT_SYMBOL(mptscsih_info);
3347 EXPORT_SYMBOL(mptscsih_qcmd);
3348 EXPORT_SYMBOL(mptscsih_slave_destroy);
3349 EXPORT_SYMBOL(mptscsih_slave_configure);
3350 EXPORT_SYMBOL(mptscsih_abort);
3351 EXPORT_SYMBOL(mptscsih_dev_reset);
3352 EXPORT_SYMBOL(mptscsih_bus_reset);
3353 EXPORT_SYMBOL(mptscsih_host_reset);
3354 EXPORT_SYMBOL(mptscsih_bios_param);
3355 EXPORT_SYMBOL(mptscsih_io_done);
3356 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3357 EXPORT_SYMBOL(mptscsih_scandv_complete);
3358 EXPORT_SYMBOL(mptscsih_event_process);
3359 EXPORT_SYMBOL(mptscsih_ioc_reset);
3360 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3361
3362 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/