Remove fs.h from mm.h
[linux-2.6.git] / drivers / message / fusion / mptscsih.c
1 /*
2  *  linux/drivers/message/fusion/mptscsih.c
3  *      For use with LSI Logic PCI chip/adapter(s)
4  *      running LSI Logic Fusion MPT (Message Passing Technology) firmware.
5  *
6  *  Copyright (c) 1999-2007 LSI Logic Corporation
7  *  (mailto:DL-MPTFusionLinux@lsi.com)
8  *
9  */
10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
11 /*
12     This program is free software; you can redistribute it and/or modify
13     it under the terms of the GNU General Public License as published by
14     the Free Software Foundation; version 2 of the License.
15
16     This program is distributed in the hope that it will be useful,
17     but WITHOUT ANY WARRANTY; without even the implied warranty of
18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19     GNU General Public License for more details.
20
21     NO WARRANTY
22     THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
23     CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
24     LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
25     MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
26     solely responsible for determining the appropriateness of using and
27     distributing the Program and assumes all risks associated with its
28     exercise of rights under this Agreement, including but not limited to
29     the risks and costs of program errors, damage to or loss of data,
30     programs or equipment, and unavailability or interruption of operations.
31
32     DISCLAIMER OF LIABILITY
33     NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
34     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35     DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
36     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
37     TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38     USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
39     HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40
41     You should have received a copy of the GNU General Public License
42     along with this program; if not, write to the Free Software
43     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
44 */
45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
46
47 #include <linux/module.h>
48 #include <linux/kernel.h>
49 #include <linux/init.h>
50 #include <linux/errno.h>
51 #include <linux/kdev_t.h>
52 #include <linux/blkdev.h>
53 #include <linux/delay.h>        /* for mdelay */
54 #include <linux/interrupt.h>    /* needed for in_interrupt() proto */
55 #include <linux/reboot.h>       /* notifier code */
56 #include <linux/workqueue.h>
57
58 #include <scsi/scsi.h>
59 #include <scsi/scsi_cmnd.h>
60 #include <scsi/scsi_device.h>
61 #include <scsi/scsi_host.h>
62 #include <scsi/scsi_tcq.h>
63 #include <scsi/scsi_dbg.h>
64
65 #include "mptbase.h"
66 #include "mptscsih.h"
67 #include "lsi/mpi_log_sas.h"
68
69 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
70 #define my_NAME         "Fusion MPT SCSI Host driver"
71 #define my_VERSION      MPT_LINUX_VERSION_COMMON
72 #define MYNAM           "mptscsih"
73
74 MODULE_AUTHOR(MODULEAUTHOR);
75 MODULE_DESCRIPTION(my_NAME);
76 MODULE_LICENSE("GPL");
77 MODULE_VERSION(my_VERSION);
78
79 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
80 /*
81  *  Other private/forward protos...
82  */
83 int             mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
84 static void     mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
85 int             mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
86
87 static int      mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
88                                  SCSIIORequest_t *pReq, int req_idx);
89 static void     mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
90 static void     mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
91 static int      mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd);
92 static int      mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout );
93 static int      SCPNT_TO_LOOKUP_IDX(struct scsi_cmnd *sc);
94
95 static int      mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout);
96
97 int             mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
98 int             mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
99
100 int             mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
101 static int      mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
102 static void     mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
103
104 void            mptscsih_remove(struct pci_dev *);
105 void            mptscsih_shutdown(struct pci_dev *);
106 #ifdef CONFIG_PM
107 int             mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
108 int             mptscsih_resume(struct pci_dev *pdev);
109 #endif
110
111 #define SNS_LEN(scp)    sizeof((scp)->sense_buffer)
112
113 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
114 /**
115  *      mptscsih_add_sge - Place a simple SGE at address pAddr.
116  *      @pAddr: virtual address for SGE
117  *      @flagslength: SGE flags and data transfer length
118  *      @dma_addr: Physical address
119  *
120  *      This routine places a MPT request frame back on the MPT adapter's
121  *      FreeQ.
122  */
123 static inline void
124 mptscsih_add_sge(char *pAddr, u32 flagslength, dma_addr_t dma_addr)
125 {
126         if (sizeof(dma_addr_t) == sizeof(u64)) {
127                 SGESimple64_t *pSge = (SGESimple64_t *) pAddr;
128                 u32 tmp = dma_addr & 0xFFFFFFFF;
129
130                 pSge->FlagsLength = cpu_to_le32(flagslength);
131                 pSge->Address.Low = cpu_to_le32(tmp);
132                 tmp = (u32) ((u64)dma_addr >> 32);
133                 pSge->Address.High = cpu_to_le32(tmp);
134
135         } else {
136                 SGESimple32_t *pSge = (SGESimple32_t *) pAddr;
137                 pSge->FlagsLength = cpu_to_le32(flagslength);
138                 pSge->Address = cpu_to_le32(dma_addr);
139         }
140 } /* mptscsih_add_sge() */
141
142 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
143 /**
144  *      mptscsih_add_chain - Place a chain SGE at address pAddr.
145  *      @pAddr: virtual address for SGE
146  *      @next: nextChainOffset value (u32's)
147  *      @length: length of next SGL segment
148  *      @dma_addr: Physical address
149  *
150  *      This routine places a MPT request frame back on the MPT adapter's
151  *      FreeQ.
152  */
153 static inline void
154 mptscsih_add_chain(char *pAddr, u8 next, u16 length, dma_addr_t dma_addr)
155 {
156         if (sizeof(dma_addr_t) == sizeof(u64)) {
157                 SGEChain64_t *pChain = (SGEChain64_t *) pAddr;
158                 u32 tmp = dma_addr & 0xFFFFFFFF;
159
160                 pChain->Length = cpu_to_le16(length);
161                 pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT | mpt_addr_size();
162
163                 pChain->NextChainOffset = next;
164
165                 pChain->Address.Low = cpu_to_le32(tmp);
166                 tmp = (u32) ((u64)dma_addr >> 32);
167                 pChain->Address.High = cpu_to_le32(tmp);
168         } else {
169                 SGEChain32_t *pChain = (SGEChain32_t *) pAddr;
170                 pChain->Length = cpu_to_le16(length);
171                 pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT | mpt_addr_size();
172                 pChain->NextChainOffset = next;
173                 pChain->Address = cpu_to_le32(dma_addr);
174         }
175 } /* mptscsih_add_chain() */
176
177 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
178 /*
179  *      mptscsih_getFreeChainBuffer - Function to get a free chain
180  *      from the MPT_SCSI_HOST FreeChainQ.
181  *      @ioc: Pointer to MPT_ADAPTER structure
182  *      @req_idx: Index of the SCSI IO request frame. (output)
183  *
184  *      return SUCCESS or FAILED
185  */
186 static inline int
187 mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
188 {
189         MPT_FRAME_HDR *chainBuf;
190         unsigned long flags;
191         int rc;
192         int chain_idx;
193
194         dsgprintk((MYIOC_s_INFO_FMT "getFreeChainBuffer called\n",
195                         ioc->name));
196         spin_lock_irqsave(&ioc->FreeQlock, flags);
197         if (!list_empty(&ioc->FreeChainQ)) {
198                 int offset;
199
200                 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR,
201                                 u.frame.linkage.list);
202                 list_del(&chainBuf->u.frame.linkage.list);
203                 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer;
204                 chain_idx = offset / ioc->req_sz;
205                 rc = SUCCESS;
206                 dsgprintk((MYIOC_s_ERR_FMT "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n",
207                         ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx));
208         } else {
209                 rc = FAILED;
210                 chain_idx = MPT_HOST_NO_CHAIN;
211                 dfailprintk((MYIOC_s_INFO_FMT "getFreeChainBuffer failed\n",
212                         ioc->name));
213         }
214         spin_unlock_irqrestore(&ioc->FreeQlock, flags);
215
216         *retIndex = chain_idx;
217         return rc;
218 } /* mptscsih_getFreeChainBuffer() */
219
220 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
221 /*
222  *      mptscsih_AddSGE - Add a SGE (plus chain buffers) to the
223  *      SCSIIORequest_t Message Frame.
224  *      @ioc: Pointer to MPT_ADAPTER structure
225  *      @SCpnt: Pointer to scsi_cmnd structure
226  *      @pReq: Pointer to SCSIIORequest_t structure
227  *
228  *      Returns ...
229  */
230 static int
231 mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
232                 SCSIIORequest_t *pReq, int req_idx)
233 {
234         char    *psge;
235         char    *chainSge;
236         struct scatterlist *sg;
237         int      frm_sz;
238         int      sges_left, sg_done;
239         int      chain_idx = MPT_HOST_NO_CHAIN;
240         int      sgeOffset;
241         int      numSgeSlots, numSgeThisFrame;
242         u32      sgflags, sgdir, thisxfer = 0;
243         int      chain_dma_off = 0;
244         int      newIndex;
245         int      ii;
246         dma_addr_t v2;
247         u32     RequestNB;
248
249         sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
250         if (sgdir == MPI_SCSIIO_CONTROL_WRITE)  {
251                 sgdir = MPT_TRANSFER_HOST_TO_IOC;
252         } else {
253                 sgdir = MPT_TRANSFER_IOC_TO_HOST;
254         }
255
256         psge = (char *) &pReq->SGL;
257         frm_sz = ioc->req_sz;
258
259         /* Map the data portion, if any.
260          * sges_left  = 0 if no data transfer.
261          */
262         sges_left = scsi_dma_map(SCpnt);
263         if (sges_left < 0)
264                 return FAILED;
265
266         /* Handle the SG case.
267          */
268         sg = scsi_sglist(SCpnt);
269         sg_done  = 0;
270         sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION);
271         chainSge = NULL;
272
273         /* Prior to entering this loop - the following must be set
274          * current MF:  sgeOffset (bytes)
275          *              chainSge (Null if original MF is not a chain buffer)
276          *              sg_done (num SGE done for this MF)
277          */
278
279 nextSGEset:
280         numSgeSlots = ((frm_sz - sgeOffset) / (sizeof(u32) + sizeof(dma_addr_t)) );
281         numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
282
283         sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | MPT_SGE_FLAGS_ADDRESSING | sgdir;
284
285         /* Get first (num - 1) SG elements
286          * Skip any SG entries with a length of 0
287          * NOTE: at finish, sg and psge pointed to NEXT data/location positions
288          */
289         for (ii=0; ii < (numSgeThisFrame-1); ii++) {
290                 thisxfer = sg_dma_len(sg);
291                 if (thisxfer == 0) {
292                         sg ++; /* Get next SG element from the OS */
293                         sg_done++;
294                         continue;
295                 }
296
297                 v2 = sg_dma_address(sg);
298                 mptscsih_add_sge(psge, sgflags | thisxfer, v2);
299
300                 sg++;           /* Get next SG element from the OS */
301                 psge += (sizeof(u32) + sizeof(dma_addr_t));
302                 sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
303                 sg_done++;
304         }
305
306         if (numSgeThisFrame == sges_left) {
307                 /* Add last element, end of buffer and end of list flags.
308                  */
309                 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT |
310                                 MPT_SGE_FLAGS_END_OF_BUFFER |
311                                 MPT_SGE_FLAGS_END_OF_LIST;
312
313                 /* Add last SGE and set termination flags.
314                  * Note: Last SGE may have a length of 0 - which should be ok.
315                  */
316                 thisxfer = sg_dma_len(sg);
317
318                 v2 = sg_dma_address(sg);
319                 mptscsih_add_sge(psge, sgflags | thisxfer, v2);
320                 /*
321                 sg++;
322                 psge += (sizeof(u32) + sizeof(dma_addr_t));
323                 */
324                 sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
325                 sg_done++;
326
327                 if (chainSge) {
328                         /* The current buffer is a chain buffer,
329                          * but there is not another one.
330                          * Update the chain element
331                          * Offset and Length fields.
332                          */
333                         mptscsih_add_chain((char *)chainSge, 0, sgeOffset, ioc->ChainBufferDMA + chain_dma_off);
334                 } else {
335                         /* The current buffer is the original MF
336                          * and there is no Chain buffer.
337                          */
338                         pReq->ChainOffset = 0;
339                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
340                         dsgprintk((MYIOC_s_INFO_FMT
341                             "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
342                         ioc->RequestNB[req_idx] = RequestNB;
343                 }
344         } else {
345                 /* At least one chain buffer is needed.
346                  * Complete the first MF
347                  *  - last SGE element, set the LastElement bit
348                  *  - set ChainOffset (words) for orig MF
349                  *             (OR finish previous MF chain buffer)
350                  *  - update MFStructPtr ChainIndex
351                  *  - Populate chain element
352                  * Also
353                  * Loop until done.
354                  */
355
356                 dsgprintk((MYIOC_s_INFO_FMT "SG: Chain Required! sg done %d\n",
357                                 ioc->name, sg_done));
358
359                 /* Set LAST_ELEMENT flag for last non-chain element
360                  * in the buffer. Since psge points at the NEXT
361                  * SGE element, go back one SGE element, update the flags
362                  * and reset the pointer. (Note: sgflags & thisxfer are already
363                  * set properly).
364                  */
365                 if (sg_done) {
366                         u32 *ptmp = (u32 *) (psge - (sizeof(u32) + sizeof(dma_addr_t)));
367                         sgflags = le32_to_cpu(*ptmp);
368                         sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT;
369                         *ptmp = cpu_to_le32(sgflags);
370                 }
371
372                 if (chainSge) {
373                         /* The current buffer is a chain buffer.
374                          * chainSge points to the previous Chain Element.
375                          * Update its chain element Offset and Length (must
376                          * include chain element size) fields.
377                          * Old chain element is now complete.
378                          */
379                         u8 nextChain = (u8) (sgeOffset >> 2);
380                         sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
381                         mptscsih_add_chain((char *)chainSge, nextChain, sgeOffset, ioc->ChainBufferDMA + chain_dma_off);
382                 } else {
383                         /* The original MF buffer requires a chain buffer -
384                          * set the offset.
385                          * Last element in this MF is a chain element.
386                          */
387                         pReq->ChainOffset = (u8) (sgeOffset >> 2);
388                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
389                         dsgprintk((MYIOC_s_ERR_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
390                         ioc->RequestNB[req_idx] = RequestNB;
391                 }
392
393                 sges_left -= sg_done;
394
395
396                 /* NOTE: psge points to the beginning of the chain element
397                  * in current buffer. Get a chain buffer.
398                  */
399                 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
400                         dfailprintk((MYIOC_s_INFO_FMT
401                             "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
402                             ioc->name, pReq->CDB[0], SCpnt));
403                         return FAILED;
404                 }
405
406                 /* Update the tracking arrays.
407                  * If chainSge == NULL, update ReqToChain, else ChainToChain
408                  */
409                 if (chainSge) {
410                         ioc->ChainToChain[chain_idx] = newIndex;
411                 } else {
412                         ioc->ReqToChain[req_idx] = newIndex;
413                 }
414                 chain_idx = newIndex;
415                 chain_dma_off = ioc->req_sz * chain_idx;
416
417                 /* Populate the chainSGE for the current buffer.
418                  * - Set chain buffer pointer to psge and fill
419                  *   out the Address and Flags fields.
420                  */
421                 chainSge = (char *) psge;
422                 dsgprintk((KERN_INFO "  Current buff @ %p (index 0x%x)",
423                                 psge, req_idx));
424
425                 /* Start the SGE for the next buffer
426                  */
427                 psge = (char *) (ioc->ChainBuffer + chain_dma_off);
428                 sgeOffset = 0;
429                 sg_done = 0;
430
431                 dsgprintk((KERN_INFO "  Chain buff @ %p (index 0x%x)\n",
432                                 psge, chain_idx));
433
434                 /* Start the SGE for the next buffer
435                  */
436
437                 goto nextSGEset;
438         }
439
440         return SUCCESS;
441 } /* mptscsih_AddSGE() */
442
443 static void
444 mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
445     U32 SlotStatus)
446 {
447         MPT_FRAME_HDR *mf;
448         SEPRequest_t     *SEPMsg;
449
450         if (ioc->bus_type != SAS)
451                 return;
452
453         /* Not supported for hidden raid components
454          */
455         if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
456                 return;
457
458         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
459                 dfailprintk((MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
460                     ioc->name,__FUNCTION__));
461                 return;
462         }
463
464         SEPMsg = (SEPRequest_t *)mf;
465         SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
466         SEPMsg->Bus = vtarget->channel;
467         SEPMsg->TargetID = vtarget->id;
468         SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
469         SEPMsg->SlotStatus = SlotStatus;
470         devtverboseprintk((MYIOC_s_WARN_FMT
471             "Sending SEP cmd=%x channel=%d id=%d\n",
472             ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
473         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
474 }
475
476 #ifdef MPT_DEBUG_REPLY
477 /**
478  *      mptscsih_iocstatus_info_scsiio - IOCSTATUS information for SCSIIO
479  *      @ioc: Pointer to MPT_ADAPTER structure
480  *      @ioc_status: U32 IOCStatus word from IOC
481  *      @scsi_status: U8 sam status from target
482  *      @scsi_state: U8 scsi state
483  *      @sc: original scsi cmnd pointer
484  *      @mf: Pointer to MPT request frame
485  *
486  *      Refer to lsi/mpi.h.
487  **/
488 static void
489 mptscsih_iocstatus_info_scsiio(MPT_ADAPTER *ioc, u32 ioc_status,
490     u8 scsi_status, u8 scsi_state, struct scsi_cmnd *sc)
491 {
492         char extend_desc[EVENT_DESCR_STR_SZ];
493         char *desc = NULL;
494
495         switch (ioc_status) {
496
497         case MPI_IOCSTATUS_SCSI_INVALID_BUS: /* 0x0041 */
498                 desc = "SCSI Invalid Bus";
499                 break;
500
501         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID: /* 0x0042 */
502                 desc = "SCSI Invalid TargetID";
503                 break;
504
505         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */
506                 /*
507                  * Inquiry is issued for device scanning
508                  */
509                 if (sc->cmnd[0] != 0x12)
510                         desc = "SCSI Device Not There";
511                 break;
512
513         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: /* 0x0044 */
514                 desc = "SCSI Data Overrun";
515                 break;
516
517         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */
518                 desc = "SCSI I/O Data Error";
519                 break;
520
521         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */
522                 desc = "SCSI Protocol Error";
523                 break;
524
525         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
526                 desc = "SCSI Task Terminated";
527                 break;
528
529         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: /* 0x0049 */
530                 desc = "SCSI Residual Mismatch";
531                 break;
532
533         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED: /* 0x004A */
534                 desc = "SCSI Task Management Failed";
535                 break;
536
537         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
538                 desc = "SCSI IOC Terminated";
539                 break;
540
541         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
542                 desc = "SCSI Ext Terminated";
543                 break;
544         }
545
546         if (!desc)
547                 return;
548
549         snprintf(extend_desc, EVENT_DESCR_STR_SZ,
550             "[%d:%d:%d:%d] cmd=%02Xh, sam_status=%02Xh state=%02Xh",
551                 sc->device->host->host_no,
552                 sc->device->channel, sc->device->id, sc->device->lun,
553                 sc->cmnd[0], scsi_status, scsi_state);
554
555         printk(MYIOC_s_INFO_FMT "IOCStatus(0x%04X): %s: %s\n",
556             ioc->name, ioc_status, desc, extend_desc);
557 }
558 #endif
559
560 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
561 /*
562  *      mptscsih_io_done - Main SCSI IO callback routine registered to
563  *      Fusion MPT (base) driver
564  *      @ioc: Pointer to MPT_ADAPTER structure
565  *      @mf: Pointer to original MPT request frame
566  *      @r: Pointer to MPT reply frame (NULL if TurboReply)
567  *
568  *      This routine is called from mpt.c::mpt_interrupt() at the completion
569  *      of any SCSI IO request.
570  *      This routine is registered with the Fusion MPT (base) driver at driver
571  *      load/init time via the mpt_register() API call.
572  *
573  *      Returns 1 indicating alloc'd request frame ptr should be freed.
574  */
575 int
576 mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
577 {
578         struct scsi_cmnd        *sc;
579         MPT_SCSI_HOST   *hd;
580         SCSIIORequest_t *pScsiReq;
581         SCSIIOReply_t   *pScsiReply;
582         u16              req_idx, req_idx_MR;
583         VirtDevice       *vdev;
584         VirtTarget       *vtarget;
585
586         hd = (MPT_SCSI_HOST *) ioc->sh->hostdata;
587
588         req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
589         req_idx_MR = (mr != NULL) ?
590             le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
591         if ((req_idx != req_idx_MR) ||
592             (mf->u.frame.linkage.arg1 == 0xdeadbeaf)) {
593                 printk(MYIOC_s_ERR_FMT "Received a mf that was already freed\n",
594                     ioc->name);
595                 printk (MYIOC_s_ERR_FMT
596                     "req_idx=%x req_idx_MR=%x mf=%p mr=%p sc=%p\n",
597                     ioc->name, req_idx, req_idx_MR, mf, mr,
598                     hd->ScsiLookup[req_idx_MR]);
599                 return 0;
600         }
601
602         sc = hd->ScsiLookup[req_idx];
603         hd->ScsiLookup[req_idx] = NULL;
604         if (sc == NULL) {
605                 MPIHeader_t *hdr = (MPIHeader_t *)mf;
606
607                 /* Remark: writeSDP1 will use the ScsiDoneCtx
608                  * If a SCSI I/O cmd, device disabled by OS and
609                  * completion done. Cannot touch sc struct. Just free mem.
610                  */
611                 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST)
612                         printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n",
613                         ioc->name);
614
615                 mptscsih_freeChainBuffers(ioc, req_idx);
616                 return 1;
617         }
618
619         if ((unsigned char *)mf != sc->host_scribble) {
620                 mptscsih_freeChainBuffers(ioc, req_idx);
621                 return 1;
622         }
623
624         sc->host_scribble = NULL;
625         sc->result = DID_OK << 16;              /* Set default reply as OK */
626         pScsiReq = (SCSIIORequest_t *) mf;
627         pScsiReply = (SCSIIOReply_t *) mr;
628
629         if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
630                 dmfprintk((MYIOC_s_INFO_FMT
631                         "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n",
632                         ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag));
633         }else{
634                 dmfprintk((MYIOC_s_INFO_FMT
635                         "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
636                         ioc->name, mf, mr, sc, req_idx));
637         }
638
639         if (pScsiReply == NULL) {
640                 /* special context reply handling */
641                 ;
642         } else {
643                 u32      xfer_cnt;
644                 u16      status;
645                 u8       scsi_state, scsi_status;
646                 u32      log_info;
647
648                 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
649                 scsi_state = pScsiReply->SCSIState;
650                 scsi_status = pScsiReply->SCSIStatus;
651                 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
652                 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
653                 log_info = le32_to_cpu(pScsiReply->IOCLogInfo);
654
655                 /*
656                  *  if we get a data underrun indication, yet no data was
657                  *  transferred and the SCSI status indicates that the
658                  *  command was never started, change the data underrun
659                  *  to success
660                  */
661                 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
662                     (scsi_status == MPI_SCSI_STATUS_BUSY ||
663                      scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT ||
664                      scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) {
665                         status = MPI_IOCSTATUS_SUCCESS;
666                 }
667
668                 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
669                         mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);
670
671                 /*
672                  *  Look for + dump FCP ResponseInfo[]!
673                  */
674                 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
675                     pScsiReply->ResponseInfo) {
676                         printk(KERN_NOTICE "[%d:%d:%d:%d] "
677                         "FCP_ResponseInfo=%08xh\n",
678                         sc->device->host->host_no, sc->device->channel,
679                         sc->device->id, sc->device->lun,
680                         le32_to_cpu(pScsiReply->ResponseInfo));
681                 }
682
683                 switch(status) {
684                 case MPI_IOCSTATUS_BUSY:                        /* 0x0002 */
685                         /* CHECKME!
686                          * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry)
687                          * But not: DID_BUS_BUSY lest one risk
688                          * killing interrupt handler:-(
689                          */
690                         sc->result = SAM_STAT_BUSY;
691                         break;
692
693                 case MPI_IOCSTATUS_SCSI_INVALID_BUS:            /* 0x0041 */
694                 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:       /* 0x0042 */
695                         sc->result = DID_BAD_TARGET << 16;
696                         break;
697
698                 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
699                         /* Spoof to SCSI Selection Timeout! */
700                         if (ioc->bus_type != FC)
701                                 sc->result = DID_NO_CONNECT << 16;
702                         /* else fibre, just stall until rescan event */
703                         else
704                                 sc->result = DID_REQUEUE << 16;
705
706                         if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
707                                 hd->sel_timeout[pScsiReq->TargetID]++;
708
709                         vdev = sc->device->hostdata;
710                         if (!vdev)
711                                 break;
712                         vtarget = vdev->vtarget;
713                         if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) {
714                                 mptscsih_issue_sep_command(ioc, vtarget,
715                                     MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED);
716                                 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON;
717                         }
718                         break;
719
720                 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
721                         if ( ioc->bus_type == SAS ) {
722                                 u16 ioc_status = le16_to_cpu(pScsiReply->IOCStatus);
723                                 if (ioc_status & MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) {
724                                         if ((log_info & SAS_LOGINFO_MASK)
725                                             == SAS_LOGINFO_NEXUS_LOSS) {
726                                                 sc->result = (DID_BUS_BUSY << 16);
727                                                 break;
728                                         }
729                                 }
730                         } else if (ioc->bus_type == FC) {
731                                 /*
732                                  * The FC IOC may kill a request for variety of
733                                  * reasons, some of which may be recovered by a
734                                  * retry, some which are unlikely to be
735                                  * recovered. Return DID_ERROR instead of
736                                  * DID_RESET to permit retry of the command,
737                                  * just not an infinite number of them
738                                  */
739                                 sc->result = DID_ERROR << 16;
740                                 break;
741                         }
742
743                         /*
744                          * Allow non-SAS & non-NEXUS_LOSS to drop into below code
745                          */
746
747                 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
748                 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
749                         /* Linux handles an unsolicited DID_RESET better
750                          * than an unsolicited DID_ABORT.
751                          */
752                         sc->result = DID_RESET << 16;
753
754                         break;
755
756                 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:      /* 0x0049 */
757                         scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
758                         if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
759                                 sc->result=DID_SOFT_ERROR << 16;
760                         else /* Sufficient data transfer occurred */
761                                 sc->result = (DID_OK << 16) | scsi_status;
762                         dreplyprintk((KERN_NOTICE
763                             "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
764                             sc->result, sc->device->channel, sc->device->id));
765                         break;
766
767                 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
768                         /*
769                          *  Do upfront check for valid SenseData and give it
770                          *  precedence!
771                          */
772                         sc->result = (DID_OK << 16) | scsi_status;
773                         if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) {
774                                 /* Have already saved the status and sense data
775                                  */
776                                 ;
777                         } else {
778                                 if (xfer_cnt < sc->underflow) {
779                                         if (scsi_status == SAM_STAT_BUSY)
780                                                 sc->result = SAM_STAT_BUSY;
781                                         else
782                                                 sc->result = DID_SOFT_ERROR << 16;
783                                 }
784                                 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
785                                         /* What to do?
786                                         */
787                                         sc->result = DID_SOFT_ERROR << 16;
788                                 }
789                                 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
790                                         /*  Not real sure here either...  */
791                                         sc->result = DID_RESET << 16;
792                                 }
793                         }
794
795                         dreplyprintk((KERN_NOTICE "  sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
796                                         sc->underflow));
797                         dreplyprintk((KERN_NOTICE "  ActBytesXferd=%02xh\n", xfer_cnt));
798                         /* Report Queue Full
799                          */
800                         if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
801                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
802
803                         break;
804
805                 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:           /* 0x0044 */
806                         scsi_set_resid(sc, 0);
807                 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
808                 case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
809                         sc->result = (DID_OK << 16) | scsi_status;
810                         if (scsi_state == 0) {
811                                 ;
812                         } else if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) {
813                                 /*
814                                  * If running against circa 200003dd 909 MPT f/w,
815                                  * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
816                                  * (QUEUE_FULL) returned from device! --> get 0x0000?128
817                                  * and with SenseBytes set to 0.
818                                  */
819                                 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
820                                         mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
821
822                         }
823                         else if (scsi_state &
824                                  (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
825                            ) {
826                                 /*
827                                  * What to do?
828                                  */
829                                 sc->result = DID_SOFT_ERROR << 16;
830                         }
831                         else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
832                                 /*  Not real sure here either...  */
833                                 sc->result = DID_RESET << 16;
834                         }
835                         else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
836                                 /* Device Inq. data indicates that it supports
837                                  * QTags, but rejects QTag messages.
838                                  * This command completed OK.
839                                  *
840                                  * Not real sure here either so do nothing...  */
841                         }
842
843                         if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
844                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
845
846                         /* Add handling of:
847                          * Reservation Conflict, Busy,
848                          * Command Terminated, CHECK
849                          */
850                         break;
851
852                 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
853                         sc->result = DID_SOFT_ERROR << 16;
854                         break;
855
856                 case MPI_IOCSTATUS_INVALID_FUNCTION:            /* 0x0001 */
857                 case MPI_IOCSTATUS_INVALID_SGL:                 /* 0x0003 */
858                 case MPI_IOCSTATUS_INTERNAL_ERROR:              /* 0x0004 */
859                 case MPI_IOCSTATUS_RESERVED:                    /* 0x0005 */
860                 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:      /* 0x0006 */
861                 case MPI_IOCSTATUS_INVALID_FIELD:               /* 0x0007 */
862                 case MPI_IOCSTATUS_INVALID_STATE:               /* 0x0008 */
863                 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
864                 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:       /* 0x004A */
865                 default:
866                         /*
867                          * What to do?
868                          */
869                         sc->result = DID_SOFT_ERROR << 16;
870                         break;
871
872                 }       /* switch(status) */
873
874 #ifdef MPT_DEBUG_REPLY
875                 if (sc->result) {
876
877                         mptscsih_iocstatus_info_scsiio(ioc, status,
878                             scsi_status, scsi_state, sc);
879
880                         dreplyprintk(("%s: [%d:%d:%d:%d] cmd=0x%02x "
881                             "result=0x%08x\n\tiocstatus=0x%04X "
882                             "scsi_state=0x%02X scsi_status=0x%02X "
883                             "loginfo=0x%08X\n", __FUNCTION__,
884                             sc->device->host->host_no, sc->device->channel, sc->device->id,
885                             sc->device->lun, sc->cmnd[0], sc->result, status,
886                             scsi_state, scsi_status, log_info));
887
888                         dreplyprintk(("%s: [%d:%d:%d:%d] resid=%d "
889                                       "bufflen=%d xfer_cnt=%d\n", __FUNCTION__,
890                                       sc->device->host->host_no,
891                                       sc->device->channel, sc->device->id,
892                                       sc->device->lun, scsi_get_resid(sc),
893                                       scsi_bufflen(sc), xfer_cnt));
894                 }
895 #endif
896
897         } /* end of address reply case */
898
899         /* Unmap the DMA buffers, if any. */
900         scsi_dma_unmap(sc);
901
902         sc->scsi_done(sc);              /* Issue the command callback */
903
904         /* Free Chain buffers */
905         mptscsih_freeChainBuffers(ioc, req_idx);
906         return 1;
907 }
908
909 /*
910  *      mptscsih_flush_running_cmds - For each command found, search
911  *              Scsi_Host instance taskQ and reply to OS.
912  *              Called only if recovering from a FW reload.
913  *      @hd: Pointer to a SCSI HOST structure
914  *
915  *      Returns: None.
916  *
917  *      Must be called while new I/Os are being queued.
918  */
919 static void
920 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
921 {
922         MPT_ADAPTER *ioc = hd->ioc;
923         struct scsi_cmnd        *SCpnt;
924         MPT_FRAME_HDR   *mf;
925         int              ii;
926         int              max = ioc->req_depth;
927
928         dprintk((KERN_INFO MYNAM ": flush_ScsiLookup called\n"));
929         for (ii= 0; ii < max; ii++) {
930                 if ((SCpnt = hd->ScsiLookup[ii]) != NULL) {
931
932                         /* Command found.
933                          */
934
935                         /* Null ScsiLookup index
936                          */
937                         hd->ScsiLookup[ii] = NULL;
938
939                         mf = MPT_INDEX_2_MFPTR(ioc, ii);
940                         dmfprintk(( "flush: ScsiDone (mf=%p,sc=%p)\n",
941                                         mf, SCpnt));
942
943                         /* Free Chain buffers */
944                         mptscsih_freeChainBuffers(ioc, ii);
945
946                         /* Free Message frames */
947                         mpt_free_msg_frame(ioc, mf);
948
949                         if ((unsigned char *)mf != SCpnt->host_scribble)
950                                 continue;
951
952                         /* Set status, free OS resources (SG DMA buffers)
953                          * Do OS callback
954                          */
955                         scsi_dma_unmap(SCpnt);
956
957                         SCpnt->result = DID_RESET << 16;
958                         SCpnt->host_scribble = NULL;
959
960                         SCpnt->scsi_done(SCpnt);        /* Issue the command callback */
961                 }
962         }
963
964         return;
965 }
966
967 /*
968  *      mptscsih_search_running_cmds - Delete any commands associated
969  *              with the specified target and lun. Function called only
970  *              when a lun is disable by mid-layer.
971  *              Do NOT access the referenced scsi_cmnd structure or
972  *              members. Will cause either a paging or NULL ptr error.
973  *              (BUT, BUT, BUT, the code does reference it! - mdr)
974  *      @hd: Pointer to a SCSI HOST structure
975  *      @vdevice: per device private data
976  *
977  *      Returns: None.
978  *
979  *      Called from slave_destroy.
980  */
981 static void
982 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
983 {
984         SCSIIORequest_t *mf = NULL;
985         int              ii;
986         int              max = hd->ioc->req_depth;
987         struct scsi_cmnd *sc;
988         struct scsi_lun  lun;
989
990         dsprintk((KERN_INFO MYNAM ": search_running channel %d id %d lun %d max %d\n",
991             vdevice->vtarget->channel, vdevice->vtarget->id, vdevice->lun, max));
992
993         for (ii=0; ii < max; ii++) {
994                 if ((sc = hd->ScsiLookup[ii]) != NULL) {
995
996                         mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(hd->ioc, ii);
997                         if (mf == NULL)
998                                 continue;
999                         /* If the device is a hidden raid component, then its
1000                          * expected that the mf->function will be RAID_SCSI_IO
1001                          */
1002                         if (vdevice->vtarget->tflags &
1003                             MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
1004                             MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
1005                                 continue;
1006
1007                         int_to_scsilun(vdevice->lun, &lun);
1008                         if ((mf->Bus != vdevice->vtarget->channel) ||
1009                             (mf->TargetID != vdevice->vtarget->id) ||
1010                             memcmp(lun.scsi_lun, mf->LUN, 8))
1011                                 continue;
1012
1013                         /* Cleanup
1014                          */
1015                         hd->ScsiLookup[ii] = NULL;
1016                         mptscsih_freeChainBuffers(hd->ioc, ii);
1017                         mpt_free_msg_frame(hd->ioc, (MPT_FRAME_HDR *)mf);
1018                         if ((unsigned char *)mf != sc->host_scribble)
1019                                 continue;
1020                         scsi_dma_unmap(sc);
1021                         sc->host_scribble = NULL;
1022                         sc->result = DID_NO_CONNECT << 16;
1023                         dsprintk(( "search_running: found (sc=%p, mf = %p) "
1024                             "channel %d id %d, lun %d \n", sc, mf,
1025                             vdevice->vtarget->channel, vdevice->vtarget->id, vdevice->lun));
1026                         sc->scsi_done(sc);
1027                 }
1028         }
1029         return;
1030 }
1031
1032 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1033
1034 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1035 /*
1036  *      mptscsih_report_queue_full - Report QUEUE_FULL status returned
1037  *      from a SCSI target device.
1038  *      @sc: Pointer to scsi_cmnd structure
1039  *      @pScsiReply: Pointer to SCSIIOReply_t
1040  *      @pScsiReq: Pointer to original SCSI request
1041  *
1042  *      This routine periodically reports QUEUE_FULL status returned from a
1043  *      SCSI target device.  It reports this to the console via kernel
1044  *      printk() API call, not more than once every 10 seconds.
1045  */
1046 static void
1047 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1048 {
1049         long time = jiffies;
1050         MPT_SCSI_HOST           *hd;
1051
1052         if (sc->device == NULL)
1053                 return;
1054         if (sc->device->host == NULL)
1055                 return;
1056         if ((hd = (MPT_SCSI_HOST *)sc->device->host->hostdata) == NULL)
1057                 return;
1058
1059         if (time - hd->last_queue_full > 10 * HZ) {
1060                 dprintk((MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n",
1061                                 hd->ioc->name, 0, sc->device->id, sc->device->lun));
1062                 hd->last_queue_full = time;
1063         }
1064 }
1065
1066 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1067 /*
1068  *      mptscsih_remove - Removed scsi devices
1069  *      @pdev: Pointer to pci_dev structure
1070  *
1071  *
1072  */
1073 void
1074 mptscsih_remove(struct pci_dev *pdev)
1075 {
1076         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1077         struct Scsi_Host        *host = ioc->sh;
1078         MPT_SCSI_HOST           *hd;
1079         int sz1;
1080
1081         if(!host) {
1082                 mpt_detach(pdev);
1083                 return;
1084         }
1085
1086         scsi_remove_host(host);
1087
1088         if((hd = (MPT_SCSI_HOST *)host->hostdata) == NULL)
1089                 return;
1090
1091         mptscsih_shutdown(pdev);
1092
1093         sz1=0;
1094
1095         if (hd->ScsiLookup != NULL) {
1096                 sz1 = hd->ioc->req_depth * sizeof(void *);
1097                 kfree(hd->ScsiLookup);
1098                 hd->ScsiLookup = NULL;
1099         }
1100
1101         dprintk((MYIOC_s_INFO_FMT
1102             "Free'd ScsiLookup (%d) memory\n",
1103             hd->ioc->name, sz1));
1104
1105         kfree(hd->info_kbuf);
1106
1107         /* NULL the Scsi_Host pointer
1108          */
1109         hd->ioc->sh = NULL;
1110
1111         scsi_host_put(host);
1112
1113         mpt_detach(pdev);
1114
1115 }
1116
1117 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1118 /*
1119  *      mptscsih_shutdown - reboot notifier
1120  *
1121  */
1122 void
1123 mptscsih_shutdown(struct pci_dev *pdev)
1124 {
1125         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1126         struct Scsi_Host        *host = ioc->sh;
1127         MPT_SCSI_HOST           *hd;
1128
1129         if(!host)
1130                 return;
1131
1132         hd = (MPT_SCSI_HOST *)host->hostdata;
1133
1134 }
1135
1136 #ifdef CONFIG_PM
1137 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1138 /*
1139  *      mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1140  *
1141  *
1142  */
1143 int
1144 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1145 {
1146         mptscsih_shutdown(pdev);
1147         return mpt_suspend(pdev,state);
1148 }
1149
1150 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1151 /*
1152  *      mptscsih_resume - Fusion MPT scsi driver resume routine.
1153  *
1154  *
1155  */
1156 int
1157 mptscsih_resume(struct pci_dev *pdev)
1158 {
1159         return mpt_resume(pdev);
1160 }
1161
1162 #endif
1163
1164 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1165 /**
1166  *      mptscsih_info - Return information about MPT adapter
1167  *      @SChost: Pointer to Scsi_Host structure
1168  *
1169  *      (linux scsi_host_template.info routine)
1170  *
1171  *      Returns pointer to buffer where information was written.
1172  */
1173 const char *
1174 mptscsih_info(struct Scsi_Host *SChost)
1175 {
1176         MPT_SCSI_HOST *h;
1177         int size = 0;
1178
1179         h = (MPT_SCSI_HOST *)SChost->hostdata;
1180
1181         if (h) {
1182                 if (h->info_kbuf == NULL)
1183                         if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1184                                 return h->info_kbuf;
1185                 h->info_kbuf[0] = '\0';
1186
1187                 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1188                 h->info_kbuf[size-1] = '\0';
1189         }
1190
1191         return h->info_kbuf;
1192 }
1193
1194 struct info_str {
1195         char *buffer;
1196         int   length;
1197         int   offset;
1198         int   pos;
1199 };
1200
1201 static void
1202 mptscsih_copy_mem_info(struct info_str *info, char *data, int len)
1203 {
1204         if (info->pos + len > info->length)
1205                 len = info->length - info->pos;
1206
1207         if (info->pos + len < info->offset) {
1208                 info->pos += len;
1209                 return;
1210         }
1211
1212         if (info->pos < info->offset) {
1213                 data += (info->offset - info->pos);
1214                 len  -= (info->offset - info->pos);
1215         }
1216
1217         if (len > 0) {
1218                 memcpy(info->buffer + info->pos, data, len);
1219                 info->pos += len;
1220         }
1221 }
1222
1223 static int
1224 mptscsih_copy_info(struct info_str *info, char *fmt, ...)
1225 {
1226         va_list args;
1227         char buf[81];
1228         int len;
1229
1230         va_start(args, fmt);
1231         len = vsprintf(buf, fmt, args);
1232         va_end(args);
1233
1234         mptscsih_copy_mem_info(info, buf, len);
1235         return len;
1236 }
1237
1238 static int
1239 mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len)
1240 {
1241         struct info_str info;
1242
1243         info.buffer     = pbuf;
1244         info.length     = len;
1245         info.offset     = offset;
1246         info.pos        = 0;
1247
1248         mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name);
1249         mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1250         mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts);
1251         mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth);
1252
1253         return ((info.pos > info.offset) ? info.pos - info.offset : 0);
1254 }
1255
1256 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1257 /**
1258  *      mptscsih_proc_info - Return information about MPT adapter
1259  *      @host:   scsi host struct
1260  *      @buffer: if write, user data; if read, buffer for user
1261  *      @start: returns the buffer address
1262  *      @offset: if write, 0; if read, the current offset into the buffer from
1263  *               the previous read.
1264  *      @length: if write, return length;
1265  *      @func:   write = 1; read = 0
1266  *
1267  *      (linux scsi_host_template.info routine)
1268  */
1269 int
1270 mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
1271                         int length, int func)
1272 {
1273         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
1274         MPT_ADAPTER     *ioc = hd->ioc;
1275         int size = 0;
1276
1277         if (func) {
1278                 /*
1279                  * write is not supported
1280                  */
1281         } else {
1282                 if (start)
1283                         *start = buffer;
1284
1285                 size = mptscsih_host_info(ioc, buffer, offset, length);
1286         }
1287
1288         return size;
1289 }
1290
1291 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1292 #define ADD_INDEX_LOG(req_ent)  do { } while(0)
1293
1294 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1295 /**
1296  *      mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1297  *      @SCpnt: Pointer to scsi_cmnd structure
1298  *      @done: Pointer SCSI mid-layer IO completion function
1299  *
1300  *      (linux scsi_host_template.queuecommand routine)
1301  *      This is the primary SCSI IO start routine.  Create a MPI SCSIIORequest
1302  *      from a linux scsi_cmnd request and send it to the IOC.
1303  *
1304  *      Returns 0. (rtn value discarded by linux scsi mid-layer)
1305  */
1306 int
1307 mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1308 {
1309         MPT_SCSI_HOST           *hd;
1310         MPT_FRAME_HDR           *mf;
1311         SCSIIORequest_t         *pScsiReq;
1312         VirtDevice              *vdev = SCpnt->device->hostdata;
1313         int      lun;
1314         u32      datalen;
1315         u32      scsictl;
1316         u32      scsidir;
1317         u32      cmd_len;
1318         int      my_idx;
1319         int      ii;
1320
1321         hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata;
1322         lun = SCpnt->device->lun;
1323         SCpnt->scsi_done = done;
1324
1325         dmfprintk((MYIOC_s_INFO_FMT "qcmd: SCpnt=%p, done()=%p\n",
1326                         (hd && hd->ioc) ? hd->ioc->name : "ioc?", SCpnt, done));
1327
1328         if (hd->resetPending) {
1329                 dtmprintk((MYIOC_s_WARN_FMT "qcmd: SCpnt=%p timeout + 60HZ\n",
1330                         (hd && hd->ioc) ? hd->ioc->name : "ioc?", SCpnt));
1331                 return SCSI_MLQUEUE_HOST_BUSY;
1332         }
1333
1334         /*
1335          *  Put together a MPT SCSI request...
1336          */
1337         if ((mf = mpt_get_msg_frame(hd->ioc->DoneCtx, hd->ioc)) == NULL) {
1338                 dprintk((MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1339                                 hd->ioc->name));
1340                 return SCSI_MLQUEUE_HOST_BUSY;
1341         }
1342
1343         pScsiReq = (SCSIIORequest_t *) mf;
1344
1345         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1346
1347         ADD_INDEX_LOG(my_idx);
1348
1349         /*    TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1350          *    Seems we may receive a buffer (datalen>0) even when there
1351          *    will be no data transfer!  GRRRRR...
1352          */
1353         if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1354                 datalen = scsi_bufflen(SCpnt);
1355                 scsidir = MPI_SCSIIO_CONTROL_READ;      /* DATA IN  (host<--ioc<--dev) */
1356         } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1357                 datalen = scsi_bufflen(SCpnt);
1358                 scsidir = MPI_SCSIIO_CONTROL_WRITE;     /* DATA OUT (host-->ioc-->dev) */
1359         } else {
1360                 datalen = 0;
1361                 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1362         }
1363
1364         /* Default to untagged. Once a target structure has been allocated,
1365          * use the Inquiry data to determine if device supports tagged.
1366          */
1367         if (vdev
1368             && (vdev->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1369             && (SCpnt->device->tagged_supported)) {
1370                 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1371         } else {
1372                 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1373         }
1374
1375         /* Use the above information to set up the message frame
1376          */
1377         pScsiReq->TargetID = (u8) vdev->vtarget->id;
1378         pScsiReq->Bus = vdev->vtarget->channel;
1379         pScsiReq->ChainOffset = 0;
1380         if (vdev->vtarget->tflags &  MPT_TARGET_FLAGS_RAID_COMPONENT)
1381                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1382         else
1383                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1384         pScsiReq->CDBLength = SCpnt->cmd_len;
1385         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1386         pScsiReq->Reserved = 0;
1387         pScsiReq->MsgFlags = mpt_msg_flags();
1388         int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1389         pScsiReq->Control = cpu_to_le32(scsictl);
1390
1391         /*
1392          *  Write SCSI CDB into the message
1393          */
1394         cmd_len = SCpnt->cmd_len;
1395         for (ii=0; ii < cmd_len; ii++)
1396                 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1397
1398         for (ii=cmd_len; ii < 16; ii++)
1399                 pScsiReq->CDB[ii] = 0;
1400
1401         /* DataLength */
1402         pScsiReq->DataLength = cpu_to_le32(datalen);
1403
1404         /* SenseBuffer low address */
1405         pScsiReq->SenseBufferLowAddr = cpu_to_le32(hd->ioc->sense_buf_low_dma
1406                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1407
1408         /* Now add the SG list
1409          * Always have a SGE even if null length.
1410          */
1411         if (datalen == 0) {
1412                 /* Add a NULL SGE */
1413                 mptscsih_add_sge((char *)&pScsiReq->SGL, MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1414                         (dma_addr_t) -1);
1415         } else {
1416                 /* Add a 32 or 64 bit SGE */
1417                 if (mptscsih_AddSGE(hd->ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1418                         goto fail;
1419         }
1420
1421         SCpnt->host_scribble = (unsigned char *)mf;
1422         hd->ScsiLookup[my_idx] = SCpnt;
1423
1424         mpt_put_msg_frame(hd->ioc->DoneCtx, hd->ioc, mf);
1425         dmfprintk((MYIOC_s_INFO_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1426                         hd->ioc->name, SCpnt, mf, my_idx));
1427         DBG_DUMP_REQUEST_FRAME(mf)
1428         return 0;
1429
1430  fail:
1431         hd->ScsiLookup[my_idx] = NULL;
1432         mptscsih_freeChainBuffers(hd->ioc, my_idx);
1433         mpt_free_msg_frame(hd->ioc, mf);
1434         return SCSI_MLQUEUE_HOST_BUSY;
1435 }
1436
1437 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1438 /*
1439  *      mptscsih_freeChainBuffers - Function to free chain buffers associated
1440  *      with a SCSI IO request
1441  *      @hd: Pointer to the MPT_SCSI_HOST instance
1442  *      @req_idx: Index of the SCSI IO request frame.
1443  *
1444  *      Called if SG chain buffer allocation fails and mptscsih callbacks.
1445  *      No return.
1446  */
1447 static void
1448 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1449 {
1450         MPT_FRAME_HDR *chain;
1451         unsigned long flags;
1452         int chain_idx;
1453         int next;
1454
1455         /* Get the first chain index and reset
1456          * tracker state.
1457          */
1458         chain_idx = ioc->ReqToChain[req_idx];
1459         ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1460
1461         while (chain_idx != MPT_HOST_NO_CHAIN) {
1462
1463                 /* Save the next chain buffer index */
1464                 next = ioc->ChainToChain[chain_idx];
1465
1466                 /* Free this chain buffer and reset
1467                  * tracker
1468                  */
1469                 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1470
1471                 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1472                                         + (chain_idx * ioc->req_sz));
1473
1474                 spin_lock_irqsave(&ioc->FreeQlock, flags);
1475                 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1476                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1477
1478                 dmfprintk((MYIOC_s_INFO_FMT "FreeChainBuffers (index %d)\n",
1479                                 ioc->name, chain_idx));
1480
1481                 /* handle next */
1482                 chain_idx = next;
1483         }
1484         return;
1485 }
1486
1487 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1488 /*
1489  *      Reset Handling
1490  */
1491
1492 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1493 /**
1494  *      mptscsih_TMHandler - Generic handler for SCSI Task Management.
1495  *      @hd: Pointer to MPT SCSI HOST structure
1496  *      @type: Task Management type
1497  *      @channel: channel number for task management
1498  *      @id: Logical Target ID for reset (if appropriate)
1499  *      @lun: Logical Unit for reset (if appropriate)
1500  *      @ctx2abort: Context for the task to be aborted (if appropriate)
1501  *      @timeout: timeout for task management control
1502  *
1503  *      Fall through to mpt_HardResetHandler if: not operational, too many
1504  *      failed TM requests or handshake failure.
1505  *
1506  *      Remark: Currently invoked from a non-interrupt thread (_bh).
1507  *
1508  *      Remark: With old EH code, at most 1 SCSI TaskMgmt function per IOC
1509  *      will be active.
1510  *
1511  *      Returns 0 for SUCCESS, or %FAILED.
1512  **/
1513 int
1514 mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1515 {
1516         MPT_ADAPTER     *ioc;
1517         int              rc = -1;
1518         u32              ioc_raw_state;
1519         unsigned long    flags;
1520
1521         ioc = hd->ioc;
1522         dtmprintk((MYIOC_s_INFO_FMT "TMHandler Entered!\n", ioc->name));
1523
1524         // SJR - CHECKME - Can we avoid this here?
1525         // (mpt_HardResetHandler has this check...)
1526         spin_lock_irqsave(&ioc->diagLock, flags);
1527         if ((ioc->diagPending) || (ioc->alt_ioc && ioc->alt_ioc->diagPending)) {
1528                 spin_unlock_irqrestore(&ioc->diagLock, flags);
1529                 return FAILED;
1530         }
1531         spin_unlock_irqrestore(&ioc->diagLock, flags);
1532
1533         /*  Wait a fixed amount of time for the TM pending flag to be cleared.
1534          *  If we time out and not bus reset, then we return a FAILED status
1535          *  to the caller.
1536          *  The call to mptscsih_tm_pending_wait() will set the pending flag
1537          *  if we are
1538          *  successful. Otherwise, reload the FW.
1539          */
1540         if (mptscsih_tm_pending_wait(hd) == FAILED) {
1541                 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1542                         dtmprintk((KERN_INFO MYNAM ": %s: TMHandler abort: "
1543                            "Timed out waiting for last TM (%d) to complete! \n",
1544                            hd->ioc->name, hd->tmPending));
1545                         return FAILED;
1546                 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET) {
1547                         dtmprintk((KERN_INFO MYNAM ": %s: TMHandler target "
1548                                 "reset: Timed out waiting for last TM (%d) "
1549                                 "to complete! \n", hd->ioc->name,
1550                                 hd->tmPending));
1551                         return FAILED;
1552                 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) {
1553                         dtmprintk((KERN_INFO MYNAM ": %s: TMHandler bus reset: "
1554                            "Timed out waiting for last TM (%d) to complete! \n",
1555                            hd->ioc->name, hd->tmPending));
1556                         return FAILED;
1557                 }
1558         } else {
1559                 spin_lock_irqsave(&hd->ioc->FreeQlock, flags);
1560                 hd->tmPending |=  (1 << type);
1561                 spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
1562         }
1563
1564         ioc_raw_state = mpt_GetIocState(hd->ioc, 0);
1565
1566         if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1567                 printk(MYIOC_s_WARN_FMT
1568                         "TM Handler for type=%x: IOC Not operational (0x%x)!\n",
1569                         ioc->name, type, ioc_raw_state);
1570                 printk(KERN_WARNING " Issuing HardReset!!\n");
1571                 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1572                         printk((KERN_WARNING "TMHandler: HardReset "
1573                                 "FAILED!!\n"));
1574                 return FAILED;
1575         }
1576
1577         if (ioc_raw_state & MPI_DOORBELL_ACTIVE) {
1578                 printk(MYIOC_s_WARN_FMT
1579                         "TM Handler for type=%x: ioc_state: "
1580                         "DOORBELL_ACTIVE (0x%x)!\n",
1581                         ioc->name, type, ioc_raw_state);
1582                 return FAILED;
1583         }
1584
1585         /* Isse the Task Mgmt request.
1586          */
1587         if (hd->hard_resets < -1)
1588                 hd->hard_resets++;
1589
1590         rc = mptscsih_IssueTaskMgmt(hd, type, channel, id, lun,
1591             ctx2abort, timeout);
1592         if (rc)
1593                 printk(MYIOC_s_INFO_FMT "Issue of TaskMgmt failed!\n",
1594                        hd->ioc->name);
1595         else
1596                 dtmprintk((MYIOC_s_INFO_FMT "Issue of TaskMgmt Successful!\n",
1597                            hd->ioc->name));
1598
1599         dtmprintk((MYIOC_s_INFO_FMT "TMHandler rc = %d!\n", hd->ioc->name, rc));
1600
1601         return rc;
1602 }
1603
1604
1605 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1606 /**
1607  *      mptscsih_IssueTaskMgmt - Generic send Task Management function.
1608  *      @hd: Pointer to MPT_SCSI_HOST structure
1609  *      @type: Task Management type
1610  *      @channel: channel number for task management
1611  *      @id: Logical Target ID for reset (if appropriate)
1612  *      @lun: Logical Unit for reset (if appropriate)
1613  *      @ctx2abort: Context for the task to be aborted (if appropriate)
1614  *      @timeout: timeout for task management control
1615  *
1616  *      Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1617  *      or a non-interrupt thread.  In the former, must not call schedule().
1618  *
1619  *      Not all fields are meaningfull for all task types.
1620  *
1621  *      Returns 0 for SUCCESS, or FAILED.
1622  *
1623  **/
1624 static int
1625 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1626 {
1627         MPT_FRAME_HDR   *mf;
1628         SCSITaskMgmt_t  *pScsiTm;
1629         int              ii;
1630         int              retval;
1631
1632         /* Return Fail to calling function if no message frames available.
1633          */
1634         if ((mf = mpt_get_msg_frame(hd->ioc->TaskCtx, hd->ioc)) == NULL) {
1635                 dfailprintk((MYIOC_s_ERR_FMT "IssueTaskMgmt, no msg frames!!\n",
1636                                 hd->ioc->name));
1637                 return FAILED;
1638         }
1639         dtmprintk((MYIOC_s_INFO_FMT "IssueTaskMgmt request @ %p\n",
1640                         hd->ioc->name, mf));
1641
1642         /* Format the Request
1643          */
1644         pScsiTm = (SCSITaskMgmt_t *) mf;
1645         pScsiTm->TargetID = id;
1646         pScsiTm->Bus = channel;
1647         pScsiTm->ChainOffset = 0;
1648         pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1649
1650         pScsiTm->Reserved = 0;
1651         pScsiTm->TaskType = type;
1652         pScsiTm->Reserved1 = 0;
1653         pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1654                     ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1655
1656         int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1657
1658         for (ii=0; ii < 7; ii++)
1659                 pScsiTm->Reserved2[ii] = 0;
1660
1661         pScsiTm->TaskMsgContext = ctx2abort;
1662
1663         dtmprintk((MYIOC_s_INFO_FMT "IssueTaskMgmt: ctx2abort (0x%08x) "
1664                 "type=%d\n", hd->ioc->name, ctx2abort, type));
1665
1666         DBG_DUMP_TM_REQUEST_FRAME((u32 *)pScsiTm);
1667
1668         if ((retval = mpt_send_handshake_request(hd->ioc->TaskCtx, hd->ioc,
1669                 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP)) != 0) {
1670                 dfailprintk((MYIOC_s_ERR_FMT "send_handshake FAILED!"
1671                         " (hd %p, ioc %p, mf %p, rc=%d) \n", hd->ioc->name, hd,
1672                         hd->ioc, mf, retval));
1673                 goto fail_out;
1674         }
1675
1676         if(mptscsih_tm_wait_for_completion(hd, timeout) == FAILED) {
1677                 dfailprintk((MYIOC_s_ERR_FMT "task management request TIMED OUT!"
1678                         " (hd %p, ioc %p, mf %p) \n", hd->ioc->name, hd,
1679                         hd->ioc, mf));
1680                 dtmprintk((MYIOC_s_INFO_FMT "Calling HardReset! \n",
1681                          hd->ioc->name));
1682                 retval = mpt_HardResetHandler(hd->ioc, CAN_SLEEP);
1683                 dtmprintk((MYIOC_s_INFO_FMT "rc=%d \n",
1684                          hd->ioc->name, retval));
1685                 goto fail_out;
1686         }
1687
1688         /*
1689          * Handle success case, see if theres a non-zero ioc_status.
1690          */
1691         if (hd->tm_iocstatus == MPI_IOCSTATUS_SUCCESS ||
1692            hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
1693            hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
1694                 retval = 0;
1695         else
1696                 retval = FAILED;
1697
1698         return retval;
1699
1700  fail_out:
1701
1702         /*
1703          * Free task managment mf, and corresponding tm flags
1704          */
1705         mpt_free_msg_frame(hd->ioc, mf);
1706         hd->tmPending = 0;
1707         hd->tmState = TM_STATE_NONE;
1708         return FAILED;
1709 }
1710
1711 static int
1712 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1713 {
1714         switch (ioc->bus_type) {
1715         case FC:
1716                 return 40;
1717         case SAS:
1718                 return 10;
1719         case SPI:
1720         default:
1721                 return 2;
1722         }
1723 }
1724
1725 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1726 /**
1727  *      mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1728  *      @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1729  *
1730  *      (linux scsi_host_template.eh_abort_handler routine)
1731  *
1732  *      Returns SUCCESS or FAILED.
1733  **/
1734 int
1735 mptscsih_abort(struct scsi_cmnd * SCpnt)
1736 {
1737         MPT_SCSI_HOST   *hd;
1738         MPT_FRAME_HDR   *mf;
1739         u32              ctx2abort;
1740         int              scpnt_idx;
1741         int              retval;
1742         VirtDevice       *vdevice;
1743         ulong            sn = SCpnt->serial_number;
1744         MPT_ADAPTER     *ioc;
1745
1746         /* If we can't locate our host adapter structure, return FAILED status.
1747          */
1748         if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL) {
1749                 SCpnt->result = DID_RESET << 16;
1750                 SCpnt->scsi_done(SCpnt);
1751                 dfailprintk((KERN_INFO MYNAM ": mptscsih_abort: Can't locate "
1752                     "host! (sc=%p)\n", SCpnt));
1753                 return FAILED;
1754         }
1755
1756         ioc = hd->ioc;
1757         printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1758                ioc->name, SCpnt);
1759         scsi_print_command(SCpnt);
1760
1761         vdevice = SCpnt->device->hostdata;
1762         if (!vdevice || !vdevice->vtarget) {
1763                 dtmprintk((MYIOC_s_DEBUG_FMT "task abort: device has been "
1764                     "deleted (sc=%p)\n", ioc->name, SCpnt));
1765                 SCpnt->result = DID_NO_CONNECT << 16;
1766                 SCpnt->scsi_done(SCpnt);
1767                 retval = 0;
1768                 goto out;
1769         }
1770
1771         /* Task aborts are not supported for hidden raid components.
1772          */
1773         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1774                 dtmprintk((MYIOC_s_DEBUG_FMT "task abort: hidden raid "
1775                     "component (sc=%p)\n", ioc->name, SCpnt));
1776                 SCpnt->result = DID_RESET << 16;
1777                 retval = FAILED;
1778                 goto out;
1779         }
1780
1781         /* Find this command
1782          */
1783         if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(SCpnt)) < 0) {
1784                 /* Cmd not found in ScsiLookup.
1785                  * Do OS callback.
1786                  */
1787                 SCpnt->result = DID_RESET << 16;
1788                 dtmprintk((KERN_INFO MYNAM ": %s: mptscsih_abort: "
1789                    "Command not in the active list! (sc=%p)\n", ioc->name,
1790                    SCpnt));
1791                 retval = 0;
1792                 goto out;
1793         }
1794
1795         if (hd->resetPending) {
1796                 retval = FAILED;
1797                 goto out;
1798         }
1799
1800         if (hd->timeouts < -1)
1801                 hd->timeouts++;
1802
1803         /* Most important!  Set TaskMsgContext to SCpnt's MsgContext!
1804          * (the IO to be ABORT'd)
1805          *
1806          * NOTE: Since we do not byteswap MsgContext, we do not
1807          *       swap it here either.  It is an opaque cookie to
1808          *       the controller, so it does not matter. -DaveM
1809          */
1810         mf = MPT_INDEX_2_MFPTR(hd->ioc, scpnt_idx);
1811         ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1812
1813         hd->abortSCpnt = SCpnt;
1814
1815         retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1816             vdevice->vtarget->channel, vdevice->vtarget->id, vdevice->lun,
1817             ctx2abort, mptscsih_get_tm_timeout(ioc));
1818
1819         if (SCPNT_TO_LOOKUP_IDX(SCpnt) == scpnt_idx &&
1820             SCpnt->serial_number == sn)
1821                 retval = FAILED;
1822
1823  out:
1824         printk(MYIOC_s_INFO_FMT "task abort: %s (sc=%p)\n",
1825             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1826
1827         if (retval == 0)
1828                 return SUCCESS;
1829         else
1830                 return FAILED;
1831 }
1832
1833 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1834 /**
1835  *      mptscsih_dev_reset - Perform a SCSI TARGET_RESET!  new_eh variant
1836  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1837  *
1838  *      (linux scsi_host_template.eh_dev_reset_handler routine)
1839  *
1840  *      Returns SUCCESS or FAILED.
1841  **/
1842 int
1843 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1844 {
1845         MPT_SCSI_HOST   *hd;
1846         int              retval;
1847         VirtDevice       *vdevice;
1848         MPT_ADAPTER     *ioc;
1849
1850         /* If we can't locate our host adapter structure, return FAILED status.
1851          */
1852         if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL){
1853                 dtmprintk((KERN_INFO MYNAM ": mptscsih_dev_reset: Can't "
1854                     "locate host! (sc=%p)\n", SCpnt));
1855                 return FAILED;
1856         }
1857
1858         ioc = hd->ioc;
1859         printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1860                ioc->name, SCpnt);
1861         scsi_print_command(SCpnt);
1862
1863         if (hd->resetPending) {
1864                 retval = FAILED;
1865                 goto out;
1866         }
1867
1868         vdevice = SCpnt->device->hostdata;
1869         if (!vdevice || !vdevice->vtarget) {
1870                 retval = 0;
1871                 goto out;
1872         }
1873
1874         /* Target reset to hidden raid component is not supported
1875          */
1876         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1877                 retval = FAILED;
1878                 goto out;
1879         }
1880
1881         retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1882             vdevice->vtarget->channel, vdevice->vtarget->id, 0, 0,
1883             mptscsih_get_tm_timeout(ioc));
1884
1885  out:
1886         printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1887             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1888
1889         if (retval == 0)
1890                 return SUCCESS;
1891         else
1892                 return FAILED;
1893 }
1894
1895
1896 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1897 /**
1898  *      mptscsih_bus_reset - Perform a SCSI BUS_RESET!  new_eh variant
1899  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1900  *
1901  *      (linux scsi_host_template.eh_bus_reset_handler routine)
1902  *
1903  *      Returns SUCCESS or FAILED.
1904  **/
1905 int
1906 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1907 {
1908         MPT_SCSI_HOST   *hd;
1909         int              retval;
1910         VirtDevice       *vdev;
1911         MPT_ADAPTER     *ioc;
1912
1913         /* If we can't locate our host adapter structure, return FAILED status.
1914          */
1915         if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL){
1916                 dtmprintk((KERN_INFO MYNAM ": mptscsih_bus_reset: Can't "
1917                     "locate host! (sc=%p)\n", SCpnt ));
1918                 return FAILED;
1919         }
1920
1921         ioc = hd->ioc;
1922         printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1923                ioc->name, SCpnt);
1924         scsi_print_command(SCpnt);
1925
1926         if (hd->timeouts < -1)
1927                 hd->timeouts++;
1928
1929         vdev = SCpnt->device->hostdata;
1930         retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1931             vdev->vtarget->channel, 0, 0, 0, mptscsih_get_tm_timeout(ioc));
1932
1933         printk(MYIOC_s_INFO_FMT "bus 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  *      mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1945  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1946  *
1947  *      (linux scsi_host_template.eh_host_reset_handler routine)
1948  *
1949  *      Returns SUCCESS or FAILED.
1950  */
1951 int
1952 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1953 {
1954         MPT_SCSI_HOST *  hd;
1955         int              retval;
1956         MPT_ADAPTER     *ioc;
1957
1958         /*  If we can't locate the host to reset, then we failed. */
1959         if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL){
1960                 dtmprintk( ( KERN_INFO MYNAM ": mptscsih_host_reset: Can't "
1961                     "locate host! (sc=%p)\n", SCpnt));
1962                 return FAILED;
1963         }
1964
1965         ioc = hd->ioc;
1966         printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
1967             ioc->name, SCpnt);
1968
1969         /*  If our attempts to reset the host failed, then return a failed
1970          *  status.  The host will be taken off line by the SCSI mid-layer.
1971          */
1972         if (mpt_HardResetHandler(hd->ioc, CAN_SLEEP) < 0) {
1973                 retval = FAILED;
1974         } else {
1975                 /*  Make sure TM pending is cleared and TM state is set to
1976                  *  NONE.
1977                  */
1978                 retval = 0;
1979                 hd->tmPending = 0;
1980                 hd->tmState = TM_STATE_NONE;
1981         }
1982
1983         printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
1984             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1985
1986         return retval;
1987 }
1988
1989 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1990 /**
1991  *      mptscsih_tm_pending_wait - wait for pending task management request to complete
1992  *      @hd: Pointer to MPT host structure.
1993  *
1994  *      Returns {SUCCESS,FAILED}.
1995  */
1996 static int
1997 mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd)
1998 {
1999         unsigned long  flags;
2000         int            loop_count = 4 * 10;  /* Wait 10 seconds */
2001         int            status = FAILED;
2002
2003         do {
2004                 spin_lock_irqsave(&hd->ioc->FreeQlock, flags);
2005                 if (hd->tmState == TM_STATE_NONE) {
2006                         hd->tmState = TM_STATE_IN_PROGRESS;
2007                         hd->tmPending = 1;
2008                         spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
2009                         status = SUCCESS;
2010                         break;
2011                 }
2012                 spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
2013                 msleep(250);
2014         } while (--loop_count);
2015
2016         return status;
2017 }
2018
2019 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2020 /**
2021  *      mptscsih_tm_wait_for_completion - wait for completion of TM task
2022  *      @hd: Pointer to MPT host structure.
2023  *      @timeout: timeout value
2024  *
2025  *      Returns {SUCCESS,FAILED}.
2026  */
2027 static int
2028 mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout )
2029 {
2030         unsigned long  flags;
2031         int            loop_count = 4 * timeout;
2032         int            status = FAILED;
2033
2034         do {
2035                 spin_lock_irqsave(&hd->ioc->FreeQlock, flags);
2036                 if(hd->tmPending == 0) {
2037                         status = SUCCESS;
2038                         spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
2039                         break;
2040                 }
2041                 spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
2042                 msleep(250);
2043         } while (--loop_count);
2044
2045         return status;
2046 }
2047
2048 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2049 static void
2050 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2051 {
2052         char *desc;
2053
2054         switch (response_code) {
2055         case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2056                 desc = "The task completed.";
2057                 break;
2058         case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2059                 desc = "The IOC received an invalid frame status.";
2060                 break;
2061         case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2062                 desc = "The task type is not supported.";
2063                 break;
2064         case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2065                 desc = "The requested task failed.";
2066                 break;
2067         case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2068                 desc = "The task completed successfully.";
2069                 break;
2070         case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2071                 desc = "The LUN request is invalid.";
2072                 break;
2073         case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2074                 desc = "The task is in the IOC queue and has not been sent to target.";
2075                 break;
2076         default:
2077                 desc = "unknown";
2078                 break;
2079         }
2080         printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2081                 ioc->name, response_code, desc);
2082 }
2083
2084 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2085 /**
2086  *      mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2087  *      @ioc: Pointer to MPT_ADAPTER structure
2088  *      @mf: Pointer to SCSI task mgmt request frame
2089  *      @mr: Pointer to SCSI task mgmt reply frame
2090  *
2091  *      This routine is called from mptbase.c::mpt_interrupt() at the completion
2092  *      of any SCSI task management request.
2093  *      This routine is registered with the MPT (base) driver at driver
2094  *      load/init time via the mpt_register() API call.
2095  *
2096  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2097  **/
2098 int
2099 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2100 {
2101         SCSITaskMgmtReply_t     *pScsiTmReply;
2102         SCSITaskMgmt_t          *pScsiTmReq;
2103         MPT_SCSI_HOST           *hd;
2104         unsigned long            flags;
2105         u16                      iocstatus;
2106         u8                       tmType;
2107         u32                      termination_count;
2108
2109         dtmprintk((MYIOC_s_WARN_FMT "TaskMgmt completed (mf=%p,mr=%p)\n",
2110             ioc->name, mf, mr));
2111         if (!ioc->sh) {
2112                 dtmprintk((MYIOC_s_WARN_FMT
2113                     "TaskMgmt Complete: NULL Scsi Host Ptr\n", ioc->name));
2114                 return 1;
2115         }
2116
2117         if (mr == NULL) {
2118                 dtmprintk((MYIOC_s_WARN_FMT
2119                     "ERROR! TaskMgmt Reply: NULL Request %p\n", ioc->name, mf));
2120                 return 1;
2121         }
2122
2123         hd = (MPT_SCSI_HOST *)ioc->sh->hostdata;
2124         pScsiTmReply = (SCSITaskMgmtReply_t*)mr;
2125         pScsiTmReq = (SCSITaskMgmt_t*)mf;
2126         tmType = pScsiTmReq->TaskType;
2127         iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2128         termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
2129
2130         if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
2131             pScsiTmReply->ResponseCode)
2132                 mptscsih_taskmgmt_response_code(ioc,
2133                     pScsiTmReply->ResponseCode);
2134         DBG_DUMP_TM_REPLY_FRAME((u32 *)pScsiTmReply);
2135
2136 #if defined(MPT_DEBUG_REPLY) || defined(MPT_DEBUG_TM)
2137         printk("%s: ha=%d [%d:%d:0] task_type=0x%02X "
2138             "iocstatus=0x%04X\n\tloginfo=0x%08X response_code=0x%02X "
2139             "term_cmnds=%d\n", __FUNCTION__, ioc->id, pScsiTmReply->Bus,
2140             pScsiTmReply->TargetID, pScsiTmReq->TaskType,
2141             le16_to_cpu(pScsiTmReply->IOCStatus),
2142             le32_to_cpu(pScsiTmReply->IOCLogInfo),pScsiTmReply->ResponseCode,
2143             le32_to_cpu(pScsiTmReply->TerminationCount));
2144 #endif
2145         if (!iocstatus) {
2146                 dtmprintk((MYIOC_s_WARN_FMT " TaskMgmt SUCCESS\n", ioc->name));
2147                         hd->abortSCpnt = NULL;
2148                 goto out;
2149         }
2150
2151         /* Error?  (anything non-zero?) */
2152
2153         /* clear flags and continue.
2154          */
2155         switch (tmType) {
2156
2157         case MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2158                 if (termination_count == 1)
2159                         iocstatus = MPI_IOCSTATUS_SCSI_TASK_TERMINATED;
2160                 hd->abortSCpnt = NULL;
2161                 break;
2162
2163         case MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS:
2164
2165                 /* If an internal command is present
2166                  * or the TM failed - reload the FW.
2167                  * FC FW may respond FAILED to an ABORT
2168                  */
2169                 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED ||
2170                     hd->cmdPtr)
2171                         if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0)
2172                                 printk((KERN_WARNING " Firmware Reload FAILED!!\n"));
2173                 break;
2174
2175         case MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2176         default:
2177                 break;
2178         }
2179
2180  out:
2181         spin_lock_irqsave(&ioc->FreeQlock, flags);
2182         hd->tmPending = 0;
2183         hd->tmState = TM_STATE_NONE;
2184         hd->tm_iocstatus = iocstatus;
2185         spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2186
2187         return 1;
2188 }
2189
2190 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2191 /*
2192  *      This is anyones guess quite frankly.
2193  */
2194 int
2195 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2196                 sector_t capacity, int geom[])
2197 {
2198         int             heads;
2199         int             sectors;
2200         sector_t        cylinders;
2201         ulong           dummy;
2202
2203         heads = 64;
2204         sectors = 32;
2205
2206         dummy = heads * sectors;
2207         cylinders = capacity;
2208         sector_div(cylinders,dummy);
2209
2210         /*
2211          * Handle extended translation size for logical drives
2212          * > 1Gb
2213          */
2214         if ((ulong)capacity >= 0x200000) {
2215                 heads = 255;
2216                 sectors = 63;
2217                 dummy = heads * sectors;
2218                 cylinders = capacity;
2219                 sector_div(cylinders,dummy);
2220         }
2221
2222         /* return result */
2223         geom[0] = heads;
2224         geom[1] = sectors;
2225         geom[2] = cylinders;
2226
2227         dprintk((KERN_NOTICE
2228                 ": bios_param: Id=%i Lun=%i Channel=%i CHS=%i/%i/%i\n",
2229                 sdev->id, sdev->lun, sdev->channel, (int)cylinders, heads, sectors));
2230
2231         return 0;
2232 }
2233
2234 /* Search IOC page 3 to determine if this is hidden physical disk
2235  *
2236  */
2237 int
2238 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2239 {
2240         struct inactive_raid_component_info *component_info;
2241         int i;
2242         int rc = 0;
2243
2244         if (!ioc->raid_data.pIocPg3)
2245                 goto out;
2246         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2247                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2248                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2249                         rc = 1;
2250                         goto out;
2251                 }
2252         }
2253
2254         /*
2255          * Check inactive list for matching phys disks
2256          */
2257         if (list_empty(&ioc->raid_data.inactive_list))
2258                 goto out;
2259
2260         down(&ioc->raid_data.inactive_list_mutex);
2261         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2262             list) {
2263                 if ((component_info->d.PhysDiskID == id) &&
2264                     (component_info->d.PhysDiskBus == channel))
2265                         rc = 1;
2266         }
2267         up(&ioc->raid_data.inactive_list_mutex);
2268
2269  out:
2270         return rc;
2271 }
2272 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2273
2274 u8
2275 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2276 {
2277         struct inactive_raid_component_info *component_info;
2278         int i;
2279         int rc = -ENXIO;
2280
2281         if (!ioc->raid_data.pIocPg3)
2282                 goto out;
2283         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2284                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2285                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2286                         rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2287                         goto out;
2288                 }
2289         }
2290
2291         /*
2292          * Check inactive list for matching phys disks
2293          */
2294         if (list_empty(&ioc->raid_data.inactive_list))
2295                 goto out;
2296
2297         down(&ioc->raid_data.inactive_list_mutex);
2298         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2299             list) {
2300                 if ((component_info->d.PhysDiskID == id) &&
2301                     (component_info->d.PhysDiskBus == channel))
2302                         rc = component_info->d.PhysDiskNum;
2303         }
2304         up(&ioc->raid_data.inactive_list_mutex);
2305
2306  out:
2307         return rc;
2308 }
2309 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2310
2311 /*
2312  *      OS entry point to allow for host driver to free allocated memory
2313  *      Called if no device present or device being unloaded
2314  */
2315 void
2316 mptscsih_slave_destroy(struct scsi_device *sdev)
2317 {
2318         struct Scsi_Host        *host = sdev->host;
2319         MPT_SCSI_HOST           *hd = (MPT_SCSI_HOST *)host->hostdata;
2320         VirtTarget              *vtarget;
2321         VirtDevice              *vdevice;
2322         struct scsi_target      *starget;
2323
2324         starget = scsi_target(sdev);
2325         vtarget = starget->hostdata;
2326         vdevice = sdev->hostdata;
2327
2328         mptscsih_search_running_cmds(hd, vdevice);
2329         vtarget->num_luns--;
2330         mptscsih_synchronize_cache(hd, vdevice);
2331         kfree(vdevice);
2332         sdev->hostdata = NULL;
2333 }
2334
2335 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2336 /*
2337  *      mptscsih_change_queue_depth - This function will set a devices queue depth
2338  *      @sdev: per scsi_device pointer
2339  *      @qdepth: requested queue depth
2340  *
2341  *      Adding support for new 'change_queue_depth' api.
2342 */
2343 int
2344 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
2345 {
2346         MPT_SCSI_HOST           *hd = (MPT_SCSI_HOST *)sdev->host->hostdata;
2347         VirtTarget              *vtarget;
2348         struct scsi_target      *starget;
2349         int                     max_depth;
2350         int                     tagged;
2351
2352         starget = scsi_target(sdev);
2353         vtarget = starget->hostdata;
2354
2355         if (hd->ioc->bus_type == SPI) {
2356                 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2357                         max_depth = 1;
2358                 else if (sdev->type == TYPE_DISK &&
2359                          vtarget->minSyncFactor <= MPT_ULTRA160)
2360                         max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2361                 else
2362                         max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2363         } else
2364                 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2365
2366         if (qdepth > max_depth)
2367                 qdepth = max_depth;
2368         if (qdepth == 1)
2369                 tagged = 0;
2370         else
2371                 tagged = MSG_SIMPLE_TAG;
2372
2373         scsi_adjust_queue_depth(sdev, tagged, qdepth);
2374         return sdev->queue_depth;
2375 }
2376
2377 /*
2378  *      OS entry point to adjust the queue_depths on a per-device basis.
2379  *      Called once per device the bus scan. Use it to force the queue_depth
2380  *      member to 1 if a device does not support Q tags.
2381  *      Return non-zero if fails.
2382  */
2383 int
2384 mptscsih_slave_configure(struct scsi_device *sdev)
2385 {
2386         struct Scsi_Host        *sh = sdev->host;
2387         VirtTarget              *vtarget;
2388         VirtDevice              *vdevice;
2389         struct scsi_target      *starget;
2390         MPT_SCSI_HOST           *hd = (MPT_SCSI_HOST *)sh->hostdata;
2391
2392         starget = scsi_target(sdev);
2393         vtarget = starget->hostdata;
2394         vdevice = sdev->hostdata;
2395
2396         dsprintk((MYIOC_s_INFO_FMT
2397                 "device @ %p, channel=%d, id=%d, lun=%d\n",
2398                 hd->ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2399         if (hd->ioc->bus_type == SPI)
2400                 dsprintk((MYIOC_s_INFO_FMT
2401                     "sdtr %d wdtr %d ppr %d inq length=%d\n",
2402                     hd->ioc->name, sdev->sdtr, sdev->wdtr,
2403                     sdev->ppr, sdev->inquiry_len));
2404
2405         if (sdev->id > sh->max_id) {
2406                 /* error case, should never happen */
2407                 scsi_adjust_queue_depth(sdev, 0, 1);
2408                 goto slave_configure_exit;
2409         }
2410
2411         vdevice->configured_lun = 1;
2412         mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
2413
2414         dsprintk((MYIOC_s_INFO_FMT
2415                 "Queue depth=%d, tflags=%x\n",
2416                 hd->ioc->name, sdev->queue_depth, vtarget->tflags));
2417
2418         if (hd->ioc->bus_type == SPI)
2419                 dsprintk((MYIOC_s_INFO_FMT
2420                     "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2421                     hd->ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2422                     vtarget->minSyncFactor));
2423
2424 slave_configure_exit:
2425
2426         dsprintk((MYIOC_s_INFO_FMT
2427                 "tagged %d, simple %d, ordered %d\n",
2428                 hd->ioc->name,sdev->tagged_supported, sdev->simple_tags,
2429                 sdev->ordered_tags));
2430
2431         return 0;
2432 }
2433
2434 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2435 /*
2436  *  Private routines...
2437  */
2438
2439 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2440 /* Utility function to copy sense data from the scsi_cmnd buffer
2441  * to the FC and SCSI target structures.
2442  *
2443  */
2444 static void
2445 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2446 {
2447         VirtDevice      *vdev;
2448         SCSIIORequest_t *pReq;
2449         u32              sense_count = le32_to_cpu(pScsiReply->SenseCount);
2450
2451         /* Get target structure
2452          */
2453         pReq = (SCSIIORequest_t *) mf;
2454         vdev = sc->device->hostdata;
2455
2456         if (sense_count) {
2457                 u8 *sense_data;
2458                 int req_index;
2459
2460                 /* Copy the sense received into the scsi command block. */
2461                 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2462                 sense_data = ((u8 *)hd->ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2463                 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2464
2465                 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2466                  */
2467                 if ((hd->ioc->events) && (hd->ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2468                         if ((sense_data[12] == 0x5D) && (vdev->vtarget->raidVolume == 0)) {
2469                                 int idx;
2470                                 MPT_ADAPTER *ioc = hd->ioc;
2471
2472                                 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2473                                 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2474                                 ioc->events[idx].eventContext = ioc->eventContext;
2475
2476                                 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2477                                         (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2478                                         (sc->device->channel << 8) | sc->device->id;
2479
2480                                 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2481
2482                                 ioc->eventContext++;
2483                                 if (hd->ioc->pcidev->vendor ==
2484                                     PCI_VENDOR_ID_IBM) {
2485                                         mptscsih_issue_sep_command(hd->ioc,
2486                                             vdev->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2487                                         vdev->vtarget->tflags |=
2488                                             MPT_TARGET_FLAGS_LED_ON;
2489                                 }
2490                         }
2491                 }
2492         } else {
2493                 dprintk((MYIOC_s_INFO_FMT "Hmmm... SenseData len=0! (?)\n",
2494                                 hd->ioc->name));
2495         }
2496 }
2497
2498 static int
2499 SCPNT_TO_LOOKUP_IDX(struct scsi_cmnd *sc)
2500 {
2501         MPT_SCSI_HOST *hd;
2502         int i;
2503
2504         hd = (MPT_SCSI_HOST *) sc->device->host->hostdata;
2505
2506         for (i = 0; i < hd->ioc->req_depth; i++) {
2507                 if (hd->ScsiLookup[i] == sc) {
2508                         return i;
2509                 }
2510         }
2511
2512         return -1;
2513 }
2514
2515 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2516 int
2517 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2518 {
2519         MPT_SCSI_HOST   *hd;
2520         unsigned long    flags;
2521         int             ii;
2522
2523         dtmprintk((KERN_WARNING MYNAM
2524                         ": IOC %s_reset routed to SCSI host driver!\n",
2525                         reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
2526                         reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
2527
2528         /* If a FW reload request arrives after base installed but
2529          * before all scsi hosts have been attached, then an alt_ioc
2530          * may have a NULL sh pointer.
2531          */
2532         if ((ioc->sh == NULL) || (ioc->sh->hostdata == NULL))
2533                 return 0;
2534         else
2535                 hd = (MPT_SCSI_HOST *) ioc->sh->hostdata;
2536
2537         if (reset_phase == MPT_IOC_SETUP_RESET) {
2538                 dtmprintk((MYIOC_s_WARN_FMT "Setup-Diag Reset\n", ioc->name));
2539
2540                 /* Clean Up:
2541                  * 1. Set Hard Reset Pending Flag
2542                  * All new commands go to doneQ
2543                  */
2544                 hd->resetPending = 1;
2545
2546         } else if (reset_phase == MPT_IOC_PRE_RESET) {
2547                 dtmprintk((MYIOC_s_WARN_FMT "Pre-Diag Reset\n", ioc->name));
2548
2549                 /* 2. Flush running commands
2550                  *      Clean ScsiLookup (and associated memory)
2551                  *      AND clean mytaskQ
2552                  */
2553
2554                 /* 2b. Reply to OS all known outstanding I/O commands.
2555                  */
2556                 mptscsih_flush_running_cmds(hd);
2557
2558                 /* 2c. If there was an internal command that
2559                  * has not completed, configuration or io request,
2560                  * free these resources.
2561                  */
2562                 if (hd->cmdPtr) {
2563                         del_timer(&hd->timer);
2564                         mpt_free_msg_frame(ioc, hd->cmdPtr);
2565                 }
2566
2567                 dtmprintk((MYIOC_s_WARN_FMT "Pre-Reset complete.\n", ioc->name));
2568
2569         } else {
2570                 dtmprintk((MYIOC_s_WARN_FMT "Post-Diag Reset\n", ioc->name));
2571
2572                 /* Once a FW reload begins, all new OS commands are
2573                  * redirected to the doneQ w/ a reset status.
2574                  * Init all control structures.
2575                  */
2576
2577                 /* ScsiLookup initialization
2578                  */
2579                 for (ii=0; ii < hd->ioc->req_depth; ii++)
2580                         hd->ScsiLookup[ii] = NULL;
2581
2582                 /* 2. Chain Buffer initialization
2583                  */
2584
2585                 /* 4. Renegotiate to all devices, if SPI
2586                  */
2587
2588                 /* 5. Enable new commands to be posted
2589                  */
2590                 spin_lock_irqsave(&ioc->FreeQlock, flags);
2591                 hd->tmPending = 0;
2592                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2593                 hd->resetPending = 0;
2594                 hd->tmState = TM_STATE_NONE;
2595
2596                 /* 6. If there was an internal command,
2597                  * wake this process up.
2598                  */
2599                 if (hd->cmdPtr) {
2600                         /*
2601                          * Wake up the original calling thread
2602                          */
2603                         hd->pLocal = &hd->localReply;
2604                         hd->pLocal->completion = MPT_SCANDV_DID_RESET;
2605                         hd->scandv_wait_done = 1;
2606                         wake_up(&hd->scandv_waitq);
2607                         hd->cmdPtr = NULL;
2608                 }
2609
2610                 dtmprintk((MYIOC_s_WARN_FMT "Post-Reset complete.\n", ioc->name));
2611
2612         }
2613
2614         return 1;               /* currently means nothing really */
2615 }
2616
2617 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2618 int
2619 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2620 {
2621         MPT_SCSI_HOST *hd;
2622         u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2623
2624         devtverboseprintk((MYIOC_s_INFO_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
2625                         ioc->name, event));
2626
2627         if (ioc->sh == NULL ||
2628                 ((hd = (MPT_SCSI_HOST *)ioc->sh->hostdata) == NULL))
2629                 return 1;
2630
2631         switch (event) {
2632         case MPI_EVENT_UNIT_ATTENTION:                  /* 03 */
2633                 /* FIXME! */
2634                 break;
2635         case MPI_EVENT_IOC_BUS_RESET:                   /* 04 */
2636         case MPI_EVENT_EXT_BUS_RESET:                   /* 05 */
2637                 if (hd && (ioc->bus_type == SPI) && (hd->soft_resets < -1))
2638                         hd->soft_resets++;
2639                 break;
2640         case MPI_EVENT_LOGOUT:                          /* 09 */
2641                 /* FIXME! */
2642                 break;
2643
2644         case MPI_EVENT_RESCAN:                          /* 06 */
2645                 break;
2646
2647                 /*
2648                  *  CHECKME! Don't think we need to do
2649                  *  anything for these, but...
2650                  */
2651         case MPI_EVENT_LINK_STATUS_CHANGE:              /* 07 */
2652         case MPI_EVENT_LOOP_STATE_CHANGE:               /* 08 */
2653                 /*
2654                  *  CHECKME!  Falling thru...
2655                  */
2656                 break;
2657
2658         case MPI_EVENT_INTEGRATED_RAID:                 /* 0B */
2659                 break;
2660
2661         case MPI_EVENT_NONE:                            /* 00 */
2662         case MPI_EVENT_LOG_DATA:                        /* 01 */
2663         case MPI_EVENT_STATE_CHANGE:                    /* 02 */
2664         case MPI_EVENT_EVENT_CHANGE:                    /* 0A */
2665         default:
2666                 dprintk((KERN_INFO "  Ignoring event (=%02Xh)\n", event));
2667                 break;
2668         }
2669
2670         return 1;               /* currently means nothing really */
2671 }
2672
2673 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2674 /*
2675  *  Bus Scan and Domain Validation functionality ...
2676  */
2677
2678 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2679 /*
2680  *      mptscsih_scandv_complete - Scan and DV callback routine registered
2681  *      to Fustion MPT (base) driver.
2682  *
2683  *      @ioc: Pointer to MPT_ADAPTER structure
2684  *      @mf: Pointer to original MPT request frame
2685  *      @mr: Pointer to MPT reply frame (NULL if TurboReply)
2686  *
2687  *      This routine is called from mpt.c::mpt_interrupt() at the completion
2688  *      of any SCSI IO request.
2689  *      This routine is registered with the Fusion MPT (base) driver at driver
2690  *      load/init time via the mpt_register() API call.
2691  *
2692  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2693  *
2694  *      Remark: Sets a completion code and (possibly) saves sense data
2695  *      in the IOC member localReply structure.
2696  *      Used ONLY for DV and other internal commands.
2697  */
2698 int
2699 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2700 {
2701         MPT_SCSI_HOST   *hd;
2702         SCSIIORequest_t *pReq;
2703         int              completionCode;
2704         u16              req_idx;
2705
2706         hd = (MPT_SCSI_HOST *) ioc->sh->hostdata;
2707
2708         if ((mf == NULL) ||
2709             (mf >= MPT_INDEX_2_MFPTR(ioc, ioc->req_depth))) {
2710                 printk(MYIOC_s_ERR_FMT
2711                         "ScanDvComplete, %s req frame ptr! (=%p)\n",
2712                                 ioc->name, mf?"BAD":"NULL", (void *) mf);
2713                 goto wakeup;
2714         }
2715
2716         del_timer(&hd->timer);
2717         req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2718         hd->ScsiLookup[req_idx] = NULL;
2719         pReq = (SCSIIORequest_t *) mf;
2720
2721         if (mf != hd->cmdPtr) {
2722                 printk(MYIOC_s_WARN_FMT "ScanDvComplete (mf=%p, cmdPtr=%p, idx=%d)\n",
2723                                 hd->ioc->name, (void *)mf, (void *) hd->cmdPtr, req_idx);
2724         }
2725         hd->cmdPtr = NULL;
2726
2727         ddvprintk((MYIOC_s_INFO_FMT "ScanDvComplete (mf=%p,mr=%p,idx=%d)\n",
2728                         hd->ioc->name, mf, mr, req_idx));
2729
2730         hd->pLocal = &hd->localReply;
2731         hd->pLocal->scsiStatus = 0;
2732
2733         /* If target struct exists, clear sense valid flag.
2734          */
2735         if (mr == NULL) {
2736                 completionCode = MPT_SCANDV_GOOD;
2737         } else {
2738                 SCSIIOReply_t   *pReply;
2739                 u16              status;
2740                 u8               scsi_status;
2741
2742                 pReply = (SCSIIOReply_t *) mr;
2743
2744                 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2745                 scsi_status = pReply->SCSIStatus;
2746
2747                 ddvtprintk((KERN_NOTICE "  IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh, IOCLogInfo=%08xh\n",
2748                              status, pReply->SCSIState, scsi_status,
2749                              le32_to_cpu(pReply->IOCLogInfo)));
2750
2751                 switch(status) {
2752
2753                 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
2754                         completionCode = MPT_SCANDV_SELECTION_TIMEOUT;
2755                         break;
2756
2757                 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
2758                 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
2759                 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
2760                 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
2761                         completionCode = MPT_SCANDV_DID_RESET;
2762                         break;
2763
2764                 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
2765                 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
2766                 case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
2767                         if (pReply->Function == MPI_FUNCTION_CONFIG) {
2768                                 ConfigReply_t *pr = (ConfigReply_t *)mr;
2769                                 completionCode = MPT_SCANDV_GOOD;
2770                                 hd->pLocal->header.PageVersion = pr->Header.PageVersion;
2771                                 hd->pLocal->header.PageLength = pr->Header.PageLength;
2772                                 hd->pLocal->header.PageNumber = pr->Header.PageNumber;
2773                                 hd->pLocal->header.PageType = pr->Header.PageType;
2774
2775                         } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2776                                 /* If the RAID Volume request is successful,
2777                                  * return GOOD, else indicate that
2778                                  * some type of error occurred.
2779                                  */
2780                                 MpiRaidActionReply_t    *pr = (MpiRaidActionReply_t *)mr;
2781                                 if (le16_to_cpu(pr->ActionStatus) == MPI_RAID_ACTION_ASTATUS_SUCCESS)
2782                                         completionCode = MPT_SCANDV_GOOD;
2783                                 else
2784                                         completionCode = MPT_SCANDV_SOME_ERROR;
2785                                 memcpy(hd->pLocal->sense, pr, sizeof(hd->pLocal->sense));
2786
2787                         } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
2788                                 u8              *sense_data;
2789                                 int              sz;
2790
2791                                 /* save sense data in global structure
2792                                  */
2793                                 completionCode = MPT_SCANDV_SENSE;
2794                                 hd->pLocal->scsiStatus = scsi_status;
2795                                 sense_data = ((u8 *)hd->ioc->sense_buf_pool +
2796                                         (req_idx * MPT_SENSE_BUFFER_ALLOC));
2797
2798                                 sz = min_t(int, pReq->SenseBufferLength,
2799                                                         SCSI_STD_SENSE_BYTES);
2800                                 memcpy(hd->pLocal->sense, sense_data, sz);
2801
2802                                 ddvprintk((KERN_NOTICE "  Check Condition, sense ptr %p\n",
2803                                                 sense_data));
2804                         } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2805                                 if (pReq->CDB[0] == INQUIRY)
2806                                         completionCode = MPT_SCANDV_ISSUE_SENSE;
2807                                 else
2808                                         completionCode = MPT_SCANDV_DID_RESET;
2809                         }
2810                         else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2811                                 completionCode = MPT_SCANDV_DID_RESET;
2812                         else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2813                                 completionCode = MPT_SCANDV_DID_RESET;
2814                         else {
2815                                 completionCode = MPT_SCANDV_GOOD;
2816                                 hd->pLocal->scsiStatus = scsi_status;
2817                         }
2818                         break;
2819
2820                 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
2821                         if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2822                                 completionCode = MPT_SCANDV_DID_RESET;
2823                         else
2824                                 completionCode = MPT_SCANDV_SOME_ERROR;
2825                         break;
2826
2827                 default:
2828                         completionCode = MPT_SCANDV_SOME_ERROR;
2829                         break;
2830
2831                 }       /* switch(status) */
2832
2833                 ddvtprintk((KERN_NOTICE "  completionCode set to %08xh\n",
2834                                 completionCode));
2835         } /* end of address reply case */
2836
2837         hd->pLocal->completion = completionCode;
2838
2839         /* MF and RF are freed in mpt_interrupt
2840          */
2841 wakeup:
2842         /* Free Chain buffers (will never chain) in scan or dv */
2843         //mptscsih_freeChainBuffers(ioc, req_idx);
2844
2845         /*
2846          * Wake up the original calling thread
2847          */
2848         hd->scandv_wait_done = 1;
2849         wake_up(&hd->scandv_waitq);
2850
2851         return 1;
2852 }
2853
2854 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2855 /*      mptscsih_timer_expired - Call back for timer process.
2856  *      Used only for dv functionality.
2857  *      @data: Pointer to MPT_SCSI_HOST recast as an unsigned long
2858  *
2859  */
2860 void
2861 mptscsih_timer_expired(unsigned long data)
2862 {
2863         MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *) data;
2864
2865         ddvprintk((MYIOC_s_WARN_FMT "Timer Expired! Cmd %p\n", hd->ioc->name, hd->cmdPtr));
2866
2867         if (hd->cmdPtr) {
2868                 MPIHeader_t *cmd = (MPIHeader_t *)hd->cmdPtr;
2869
2870                 if (cmd->Function == MPI_FUNCTION_SCSI_IO_REQUEST) {
2871                         /* Desire to issue a task management request here.
2872                          * TM requests MUST be single threaded.
2873                          * If old eh code and no TM current, issue request.
2874                          * If new eh code, do nothing. Wait for OS cmd timeout
2875                          *      for bus reset.
2876                          */
2877                         ddvtprintk((MYIOC_s_NOTE_FMT "DV Cmd Timeout: NoOp\n", hd->ioc->name));
2878                 } else {
2879                         /* Perform a FW reload */
2880                         if (mpt_HardResetHandler(hd->ioc, NO_SLEEP) < 0) {
2881                                 printk(MYIOC_s_WARN_FMT "Firmware Reload FAILED!\n", hd->ioc->name);
2882                         }
2883                 }
2884         } else {
2885                 /* This should NEVER happen */
2886                 printk(MYIOC_s_WARN_FMT "Null cmdPtr!!!!\n", hd->ioc->name);
2887         }
2888
2889         /* No more processing.
2890          * TM call will generate an interrupt for SCSI TM Management.
2891          * The FW will reply to all outstanding commands, callback will finish cleanup.
2892          * Hard reset clean-up will free all resources.
2893          */
2894         ddvprintk((MYIOC_s_WARN_FMT "Timer Expired Complete!\n", hd->ioc->name));
2895
2896         return;
2897 }
2898
2899
2900 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2901 /**
2902  *      mptscsih_do_cmd - Do internal command.
2903  *      @hd: MPT_SCSI_HOST pointer
2904  *      @io: INTERNAL_CMD pointer.
2905  *
2906  *      Issue the specified internally generated command and do command
2907  *      specific cleanup. For bus scan / DV only.
2908  *      NOTES: If command is Inquiry and status is good,
2909  *      initialize a target structure, save the data
2910  *
2911  *      Remark: Single threaded access only.
2912  *
2913  *      Return:
2914  *              < 0 if an illegal command or no resources
2915  *
2916  *                 0 if good
2917  *
2918  *               > 0 if command complete but some type of completion error.
2919  */
2920 static int
2921 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2922 {
2923         MPT_FRAME_HDR   *mf;
2924         SCSIIORequest_t *pScsiReq;
2925         SCSIIORequest_t  ReqCopy;
2926         int              my_idx, ii, dir;
2927         int              rc, cmdTimeout;
2928         int             in_isr;
2929         char             cmdLen;
2930         char             CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2931         char             cmd = io->cmd;
2932
2933         in_isr = in_interrupt();
2934         if (in_isr) {
2935                 dprintk((MYIOC_s_WARN_FMT "Internal SCSI IO request not allowed in ISR context!\n",
2936                                 hd->ioc->name));
2937                 return -EPERM;
2938         }
2939
2940
2941         /* Set command specific information
2942          */
2943         switch (cmd) {
2944         case INQUIRY:
2945                 cmdLen = 6;
2946                 dir = MPI_SCSIIO_CONTROL_READ;
2947                 CDB[0] = cmd;
2948                 CDB[4] = io->size;
2949                 cmdTimeout = 10;
2950                 break;
2951
2952         case TEST_UNIT_READY:
2953                 cmdLen = 6;
2954                 dir = MPI_SCSIIO_CONTROL_READ;
2955                 cmdTimeout = 10;
2956                 break;
2957
2958         case START_STOP:
2959                 cmdLen = 6;
2960                 dir = MPI_SCSIIO_CONTROL_READ;
2961                 CDB[0] = cmd;
2962                 CDB[4] = 1;     /*Spin up the disk */
2963                 cmdTimeout = 15;
2964                 break;
2965
2966         case REQUEST_SENSE:
2967                 cmdLen = 6;
2968                 CDB[0] = cmd;
2969                 CDB[4] = io->size;
2970                 dir = MPI_SCSIIO_CONTROL_READ;
2971                 cmdTimeout = 10;
2972                 break;
2973
2974         case READ_BUFFER:
2975                 cmdLen = 10;
2976                 dir = MPI_SCSIIO_CONTROL_READ;
2977                 CDB[0] = cmd;
2978                 if (io->flags & MPT_ICFLAG_ECHO) {
2979                         CDB[1] = 0x0A;
2980                 } else {
2981                         CDB[1] = 0x02;
2982                 }
2983
2984                 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2985                         CDB[1] |= 0x01;
2986                 }
2987                 CDB[6] = (io->size >> 16) & 0xFF;
2988                 CDB[7] = (io->size >>  8) & 0xFF;
2989                 CDB[8] = io->size & 0xFF;
2990                 cmdTimeout = 10;
2991                 break;
2992
2993         case WRITE_BUFFER:
2994                 cmdLen = 10;
2995                 dir = MPI_SCSIIO_CONTROL_WRITE;
2996                 CDB[0] = cmd;
2997                 if (io->flags & MPT_ICFLAG_ECHO) {
2998                         CDB[1] = 0x0A;
2999                 } else {
3000                         CDB[1] = 0x02;
3001                 }
3002                 CDB[6] = (io->size >> 16) & 0xFF;
3003                 CDB[7] = (io->size >>  8) & 0xFF;
3004                 CDB[8] = io->size & 0xFF;
3005                 cmdTimeout = 10;
3006                 break;
3007
3008         case RESERVE:
3009                 cmdLen = 6;
3010                 dir = MPI_SCSIIO_CONTROL_READ;
3011                 CDB[0] = cmd;
3012                 cmdTimeout = 10;
3013                 break;
3014
3015         case RELEASE:
3016                 cmdLen = 6;
3017                 dir = MPI_SCSIIO_CONTROL_READ;
3018                 CDB[0] = cmd;
3019                 cmdTimeout = 10;
3020                 break;
3021
3022         case SYNCHRONIZE_CACHE:
3023                 cmdLen = 10;
3024                 dir = MPI_SCSIIO_CONTROL_READ;
3025                 CDB[0] = cmd;
3026 //              CDB[1] = 0x02;  /* set immediate bit */
3027                 cmdTimeout = 10;
3028                 break;
3029
3030         default:
3031                 /* Error Case */
3032                 return -EFAULT;
3033         }
3034
3035         /* Get and Populate a free Frame
3036          */
3037         if ((mf = mpt_get_msg_frame(hd->ioc->InternalCtx, hd->ioc)) == NULL) {
3038                 ddvprintk((MYIOC_s_WARN_FMT "No msg frames!\n",
3039                                         hd->ioc->name));
3040                 return -EBUSY;
3041         }
3042
3043         pScsiReq = (SCSIIORequest_t *) mf;
3044
3045         /* Get the request index */
3046         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
3047         ADD_INDEX_LOG(my_idx); /* for debug */
3048
3049         if (io->flags & MPT_ICFLAG_PHYS_DISK) {
3050                 pScsiReq->TargetID = io->physDiskNum;
3051                 pScsiReq->Bus = 0;
3052                 pScsiReq->ChainOffset = 0;
3053                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3054         } else {
3055                 pScsiReq->TargetID = io->id;
3056                 pScsiReq->Bus = io->channel;
3057                 pScsiReq->ChainOffset = 0;
3058                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
3059         }
3060
3061         pScsiReq->CDBLength = cmdLen;
3062         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
3063
3064         pScsiReq->Reserved = 0;
3065
3066         pScsiReq->MsgFlags = mpt_msg_flags();
3067         /* MsgContext set in mpt_get_msg_fram call  */
3068
3069         int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
3070
3071         if (io->flags & MPT_ICFLAG_TAGGED_CMD)
3072                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
3073         else
3074                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3075
3076         if (cmd == REQUEST_SENSE) {
3077                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3078                 ddvprintk((MYIOC_s_INFO_FMT "Untagged! 0x%2x\n",
3079                         hd->ioc->name, cmd));
3080         }
3081
3082         for (ii=0; ii < 16; ii++)
3083                 pScsiReq->CDB[ii] = CDB[ii];
3084
3085         pScsiReq->DataLength = cpu_to_le32(io->size);
3086         pScsiReq->SenseBufferLowAddr = cpu_to_le32(hd->ioc->sense_buf_low_dma
3087                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
3088
3089         ddvprintk((MYIOC_s_INFO_FMT "Sending Command 0x%x for (%d:%d:%d)\n",
3090                         hd->ioc->name, cmd, io->channel, io->id, io->lun));
3091
3092         if (dir == MPI_SCSIIO_CONTROL_READ) {
3093                 mpt_add_sge((char *) &pScsiReq->SGL,
3094                         MPT_SGE_FLAGS_SSIMPLE_READ | io->size,
3095                         io->data_dma);
3096         } else {
3097                 mpt_add_sge((char *) &pScsiReq->SGL,
3098                         MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size,
3099                         io->data_dma);
3100         }
3101
3102         /* The ISR will free the request frame, but we need
3103          * the information to initialize the target. Duplicate.