kernel/drivers/message/fusion/mptscsih.c

   1 /*
   2  *  linux/drivers/message/fusion/mptscsih.c
   3  *      For use with LSI PCI chip/adapter(s)
   4  *      running LSI Fusion MPT (Message Passing Technology) firmware.
   5  *
   6  *  Copyright (c) 1999-2008 LSI Corporation
   7  *  (mailto:DL-MPTFusionLinux@lsi.com)
   8  *
   9  */
  10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  11 /*
  12     This program is free software; you can redistribute it and/or modify
  13     it under the terms of the GNU General Public License as published by
  14     the Free Software Foundation; version 2 of the License.
  15
  16     This program is distributed in the hope that it will be useful,
  17     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19     GNU General Public License for more details.
  20
  21     NO WARRANTY
  22     THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
  23     CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
  24     LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
  25     MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
  26     solely responsible for determining the appropriateness of using and
  27     distributing the Program and assumes all risks associated with its
  28     exercise of rights under this Agreement, including but not limited to
  29     the risks and costs of program errors, damage to or loss of data,
  30     programs or equipment, and unavailability or interruption of operations.
  31
  32     DISCLAIMER OF LIABILITY
  33     NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
  34     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35     DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
  36     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  37     TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  38     USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
  39     HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
  40
  41     You should have received a copy of the GNU General Public License
  42     along with this program; if not, write to the Free Software
  43     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  44 */
  45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  46
  47 #include <linux/module.h>
  48 #include <linux/kernel.h>
  49 #include <linux/slab.h>
  50 #include <linux/init.h>
  51 #include <linux/errno.h>
  52 #include <linux/kdev_t.h>
  53 #include <linux/blkdev.h>
  54 #include <linux/delay.h>        /* for mdelay */
  55 #include <linux/interrupt.h>    /* needed for in_interrupt() proto */
  56 #include <linux/reboot.h>       /* notifier code */
  57 #include <linux/workqueue.h>
  58
  59 #include <scsi/scsi.h>
  60 #include <scsi/scsi_cmnd.h>
  61 #include <scsi/scsi_device.h>
  62 #include <scsi/scsi_host.h>
  63 #include <scsi/scsi_tcq.h>
  64 #include <scsi/scsi_dbg.h>
  65
  66 #include "mptbase.h"
  67 #include "mptscsih.h"
  68 #include "lsi/mpi_log_sas.h"
  69
  70 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  71 #define my_NAME         "Fusion MPT SCSI Host driver"
  72 #define my_VERSION      MPT_LINUX_VERSION_COMMON
  73 #define MYNAM           "mptscsih"
  74
  75 MODULE_AUTHOR(MODULEAUTHOR);
  76 MODULE_DESCRIPTION(my_NAME);
  77 MODULE_LICENSE("GPL");
  78 MODULE_VERSION(my_VERSION);
  79
  80 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  81 /*
  82  *  Other private/forward protos...
  83  */
  84 struct scsi_cmnd        *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
  85 static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i);
  86 static void     mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd);
  87 static int      SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd);
  88 int             mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
  89 static void     mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
  90 int             mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
  91
  92 static int      mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
  93                                  SCSIIORequest_t *pReq, int req_idx);
  94 static void     mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
  95 static void     mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
  96
  97 int     mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id,
  98                 u64 lun, int ctx2abort, ulong timeout);
  99
 100 int             mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
 101 int             mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
 102
 103 void
 104 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code);
 105 static int      mptscsih_get_completion_code(MPT_ADAPTER *ioc,
 106                 MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply);
 107 int             mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
 108 static int      mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
 109 static void     mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
 110
 111 static int
 112 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
 113                                 SCSITaskMgmtReply_t *pScsiTmReply);
 114 void            mptscsih_remove(struct pci_dev *);
 115 void            mptscsih_shutdown(struct pci_dev *);
 116 #ifdef CONFIG_PM
 117 int             mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
 118 int             mptscsih_resume(struct pci_dev *pdev);
 119 #endif
 120
 121 #define SNS_LEN(scp)    SCSI_SENSE_BUFFERSIZE
 122
 123
 124 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 125 /*
 126  *      mptscsih_getFreeChainBuffer - Function to get a free chain
 127  *      from the MPT_SCSI_HOST FreeChainQ.
 128  *      @ioc: Pointer to MPT_ADAPTER structure
 129  *      @req_idx: Index of the SCSI IO request frame. (output)
 130  *
 131  *      return SUCCESS or FAILED
 132  */
 133 static inline int
 134 mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
 135 {
 136         MPT_FRAME_HDR *chainBuf;
 137         unsigned long flags;
 138         int rc;
 139         int chain_idx;
 140
 141         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n",
 142             ioc->name));
 143         spin_lock_irqsave(&ioc->FreeQlock, flags);
 144         if (!list_empty(&ioc->FreeChainQ)) {
 145                 int offset;
 146
 147                 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR,
 148                                 u.frame.linkage.list);
 149                 list_del(&chainBuf->u.frame.linkage.list);
 150                 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer;
 151                 chain_idx = offset / ioc->req_sz;
 152                 rc = SUCCESS;
 153                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 154                     "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n",
 155                     ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx));
 156         } else {
 157                 rc = FAILED;
 158                 chain_idx = MPT_HOST_NO_CHAIN;
 159                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n",
 160                     ioc->name));
 161         }
 162         spin_unlock_irqrestore(&ioc->FreeQlock, flags);
 163
 164         *retIndex = chain_idx;
 165         return rc;
 166 } /* mptscsih_getFreeChainBuffer() */
 167
 168 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 169 /*
 170  *      mptscsih_AddSGE - Add a SGE (plus chain buffers) to the
 171  *      SCSIIORequest_t Message Frame.
 172  *      @ioc: Pointer to MPT_ADAPTER structure
 173  *      @SCpnt: Pointer to scsi_cmnd structure
 174  *      @pReq: Pointer to SCSIIORequest_t structure
 175  *
 176  *      Returns ...
 177  */
 178 static int
 179 mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
 180                 SCSIIORequest_t *pReq, int req_idx)
 181 {
 182         char    *psge;
 183         char    *chainSge;
 184         struct scatterlist *sg;
 185         int      frm_sz;
 186         int      sges_left, sg_done;
 187         int      chain_idx = MPT_HOST_NO_CHAIN;
 188         int      sgeOffset;
 189         int      numSgeSlots, numSgeThisFrame;
 190         u32      sgflags, sgdir, thisxfer = 0;
 191         int      chain_dma_off = 0;
 192         int      newIndex;
 193         int      ii;
 194         dma_addr_t v2;
 195         u32     RequestNB;
 196
 197         sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
 198         if (sgdir == MPI_SCSIIO_CONTROL_WRITE)  {
 199                 sgdir = MPT_TRANSFER_HOST_TO_IOC;
 200         } else {
 201                 sgdir = MPT_TRANSFER_IOC_TO_HOST;
 202         }
 203
 204         psge = (char *) &pReq->SGL;
 205         frm_sz = ioc->req_sz;
 206
 207         /* Map the data portion, if any.
 208          * sges_left  = 0 if no data transfer.
 209          */
 210         sges_left = scsi_dma_map(SCpnt);
 211         if (sges_left < 0)
 212                 return FAILED;
 213
 214         /* Handle the SG case.
 215          */
 216         sg = scsi_sglist(SCpnt);
 217         sg_done  = 0;
 218         sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION);
 219         chainSge = NULL;
 220
 221         /* Prior to entering this loop - the following must be set
 222          * current MF:  sgeOffset (bytes)
 223          *              chainSge (Null if original MF is not a chain buffer)
 224          *              sg_done (num SGE done for this MF)
 225          */
 226
 227 nextSGEset:
 228         numSgeSlots = ((frm_sz - sgeOffset) / ioc->SGE_size);
 229         numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
 230
 231         sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | sgdir;
 232
 233         /* Get first (num - 1) SG elements
 234          * Skip any SG entries with a length of 0
 235          * NOTE: at finish, sg and psge pointed to NEXT data/location positions
 236          */
 237         for (ii=0; ii < (numSgeThisFrame-1); ii++) {
 238                 thisxfer = sg_dma_len(sg);
 239                 if (thisxfer == 0) {
 240                         /* Get next SG element from the OS */
 241                         sg = sg_next(sg);
 242                         sg_done++;
 243                         continue;
 244                 }
 245
 246                 v2 = sg_dma_address(sg);
 247                 ioc->add_sge(psge, sgflags | thisxfer, v2);
 248
 249                 /* Get next SG element from the OS */
 250                 sg = sg_next(sg);
 251                 psge += ioc->SGE_size;
 252                 sgeOffset += ioc->SGE_size;
 253                 sg_done++;
 254         }
 255
 256         if (numSgeThisFrame == sges_left) {
 257                 /* Add last element, end of buffer and end of list flags.
 258                  */
 259                 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT |
 260                                 MPT_SGE_FLAGS_END_OF_BUFFER |
 261                                 MPT_SGE_FLAGS_END_OF_LIST;
 262
 263                 /* Add last SGE and set termination flags.
 264                  * Note: Last SGE may have a length of 0 - which should be ok.
 265                  */
 266                 thisxfer = sg_dma_len(sg);
 267
 268                 v2 = sg_dma_address(sg);
 269                 ioc->add_sge(psge, sgflags | thisxfer, v2);
 270                 sgeOffset += ioc->SGE_size;
 271                 sg_done++;
 272
 273                 if (chainSge) {
 274                         /* The current buffer is a chain buffer,
 275                          * but there is not another one.
 276                          * Update the chain element
 277                          * Offset and Length fields.
 278                          */
 279                         ioc->add_chain((char *)chainSge, 0, sgeOffset,
 280                                 ioc->ChainBufferDMA + chain_dma_off);
 281                 } else {
 282                         /* The current buffer is the original MF
 283                          * and there is no Chain buffer.
 284                          */
 285                         pReq->ChainOffset = 0;
 286                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
 287                         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 288                             "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
 289                         ioc->RequestNB[req_idx] = RequestNB;
 290                 }
 291         } else {
 292                 /* At least one chain buffer is needed.
 293                  * Complete the first MF
 294                  *  - last SGE element, set the LastElement bit
 295                  *  - set ChainOffset (words) for orig MF
 296                  *             (OR finish previous MF chain buffer)
 297                  *  - update MFStructPtr ChainIndex
 298                  *  - Populate chain element
 299                  * Also
 300                  * Loop until done.
 301                  */
 302
 303                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n",
 304                                 ioc->name, sg_done));
 305
 306                 /* Set LAST_ELEMENT flag for last non-chain element
 307                  * in the buffer. Since psge points at the NEXT
 308                  * SGE element, go back one SGE element, update the flags
 309                  * and reset the pointer. (Note: sgflags & thisxfer are already
 310                  * set properly).
 311                  */
 312                 if (sg_done) {
 313                         u32 *ptmp = (u32 *) (psge - ioc->SGE_size);
 314                         sgflags = le32_to_cpu(*ptmp);
 315                         sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT;
 316                         *ptmp = cpu_to_le32(sgflags);
 317                 }
 318
 319                 if (chainSge) {
 320                         /* The current buffer is a chain buffer.
 321                          * chainSge points to the previous Chain Element.
 322                          * Update its chain element Offset and Length (must
 323                          * include chain element size) fields.
 324                          * Old chain element is now complete.
 325                          */
 326                         u8 nextChain = (u8) (sgeOffset >> 2);
 327                         sgeOffset += ioc->SGE_size;
 328                         ioc->add_chain((char *)chainSge, nextChain, sgeOffset,
 329                                          ioc->ChainBufferDMA + chain_dma_off);
 330                 } else {
 331                         /* The original MF buffer requires a chain buffer -
 332                          * set the offset.
 333                          * Last element in this MF is a chain element.
 334                          */
 335                         pReq->ChainOffset = (u8) (sgeOffset >> 2);
 336                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
 337                         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
 338                         ioc->RequestNB[req_idx] = RequestNB;
 339                 }
 340
 341                 sges_left -= sg_done;
 342
 343
 344                 /* NOTE: psge points to the beginning of the chain element
 345                  * in current buffer. Get a chain buffer.
 346                  */
 347                 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
 348                         dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 349                             "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
 350                             ioc->name, pReq->CDB[0], SCpnt));
 351                         return FAILED;
 352                 }
 353
 354                 /* Update the tracking arrays.
 355                  * If chainSge == NULL, update ReqToChain, else ChainToChain
 356                  */
 357                 if (chainSge) {
 358                         ioc->ChainToChain[chain_idx] = newIndex;
 359                 } else {
 360                         ioc->ReqToChain[req_idx] = newIndex;
 361                 }
 362                 chain_idx = newIndex;
 363                 chain_dma_off = ioc->req_sz * chain_idx;
 364
 365                 /* Populate the chainSGE for the current buffer.
 366                  * - Set chain buffer pointer to psge and fill
 367                  *   out the Address and Flags fields.
 368                  */
 369                 chainSge = (char *) psge;
 370                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "  Current buff @ %p (index 0x%x)",
 371                     ioc->name, psge, req_idx));
 372
 373                 /* Start the SGE for the next buffer
 374                  */
 375                 psge = (char *) (ioc->ChainBuffer + chain_dma_off);
 376                 sgeOffset = 0;
 377                 sg_done = 0;
 378
 379                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "  Chain buff @ %p (index 0x%x)\n",
 380                     ioc->name, psge, chain_idx));
 381
 382                 /* Start the SGE for the next buffer
 383                  */
 384
 385                 goto nextSGEset;
 386         }
 387
 388         return SUCCESS;
 389 } /* mptscsih_AddSGE() */
 390
 391 static void
 392 mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
 393     U32 SlotStatus)
 394 {
 395         MPT_FRAME_HDR *mf;
 396         SEPRequest_t     *SEPMsg;
 397
 398         if (ioc->bus_type != SAS)
 399                 return;
 400
 401         /* Not supported for hidden raid components
 402          */
 403         if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
 404                 return;
 405
 406         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
 407                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
 408                     ioc->name,__func__));
 409                 return;
 410         }
 411
 412         SEPMsg = (SEPRequest_t *)mf;
 413         SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
 414         SEPMsg->Bus = vtarget->channel;
 415         SEPMsg->TargetID = vtarget->id;
 416         SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
 417         SEPMsg->SlotStatus = SlotStatus;
 418         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 419             "Sending SEP cmd=%x channel=%d id=%d\n",
 420             ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
 421         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
 422 }
 423
 424 #ifdef CONFIG_FUSION_LOGGING
 425 /**
 426  *      mptscsih_info_scsiio - debug print info on reply frame
 427  *      @ioc: Pointer to MPT_ADAPTER structure
 428  *      @sc: original scsi cmnd pointer
 429  *      @pScsiReply: Pointer to MPT reply frame
 430  *
 431  *      MPT_DEBUG_REPLY needs to be enabled to obtain this info
 432  *
 433  *      Refer to lsi/mpi.h.
 434  **/
 435 static void
 436 mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
 437 {
 438         char    *desc = NULL;
 439         char    *desc1 = NULL;
 440         u16     ioc_status;
 441         u8      skey, asc, ascq;
 442
 443         ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
 444
 445         switch (ioc_status) {
 446
 447         case MPI_IOCSTATUS_SUCCESS:
 448                 desc = "success";
 449                 break;
 450         case MPI_IOCSTATUS_SCSI_INVALID_BUS:
 451                 desc = "invalid bus";
 452                 break;
 453         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
 454                 desc = "invalid target_id";
 455                 break;
 456         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
 457                 desc = "device not there";
 458                 break;
 459         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
 460                 desc = "data overrun";
 461                 break;
 462         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
 463                 desc = "data underrun";
 464                 break;
 465         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
 466                 desc = "I/O data error";
 467                 break;
 468         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
 469                 desc = "protocol error";
 470                 break;
 471         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
 472                 desc = "task terminated";
 473                 break;
 474         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
 475                 desc = "residual mismatch";
 476                 break;
 477         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
 478                 desc = "task management failed";
 479                 break;
 480         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
 481                 desc = "IOC terminated";
 482                 break;
 483         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
 484                 desc = "ext terminated";
 485                 break;
 486         default:
 487                 desc = "";
 488                 break;
 489         }
 490
 491         switch (pScsiReply->SCSIStatus)
 492         {
 493
 494         case MPI_SCSI_STATUS_SUCCESS:
 495                 desc1 = "success";
 496                 break;
 497         case MPI_SCSI_STATUS_CHECK_CONDITION:
 498                 desc1 = "check condition";
 499                 break;
 500         case MPI_SCSI_STATUS_CONDITION_MET:
 501                 desc1 = "condition met";
 502                 break;
 503         case MPI_SCSI_STATUS_BUSY:
 504                 desc1 = "busy";
 505                 break;
 506         case MPI_SCSI_STATUS_INTERMEDIATE:
 507                 desc1 = "intermediate";
 508                 break;
 509         case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET:
 510                 desc1 = "intermediate condmet";
 511                 break;
 512         case MPI_SCSI_STATUS_RESERVATION_CONFLICT:
 513                 desc1 = "reservation conflict";
 514                 break;
 515         case MPI_SCSI_STATUS_COMMAND_TERMINATED:
 516                 desc1 = "command terminated";
 517                 break;
 518         case MPI_SCSI_STATUS_TASK_SET_FULL:
 519                 desc1 = "task set full";
 520                 break;
 521         case MPI_SCSI_STATUS_ACA_ACTIVE:
 522                 desc1 = "aca active";
 523                 break;
 524         case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT:
 525                 desc1 = "fcpext device logged out";
 526                 break;
 527         case MPI_SCSI_STATUS_FCPEXT_NO_LINK:
 528                 desc1 = "fcpext no link";
 529                 break;
 530         case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED:
 531                 desc1 = "fcpext unassigned";
 532                 break;
 533         default:
 534                 desc1 = "";
 535                 break;
 536         }
 537
 538         scsi_print_command(sc);
 539         printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %llu\n",
 540             ioc->name, pScsiReply->Bus, pScsiReply->TargetID, sc->device->lun);
 541         printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
 542             "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
 543             scsi_get_resid(sc));
 544         printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, "
 545             "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag),
 546             le32_to_cpu(pScsiReply->TransferCount), sc->result);
 547
 548         printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), "
 549             "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
 550             ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus,
 551             pScsiReply->SCSIState);
 552
 553         if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
 554                 skey = sc->sense_buffer[2] & 0x0F;
 555                 asc = sc->sense_buffer[12];
 556                 ascq = sc->sense_buffer[13];
 557
 558                 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: "
 559                     "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq);
 560         }
 561
 562         /*
 563          *  Look for + dump FCP ResponseInfo[]!
 564          */
 565         if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
 566             pScsiReply->ResponseInfo)
 567                 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n",
 568                     ioc->name, le32_to_cpu(pScsiReply->ResponseInfo));
 569 }
 570 #endif
 571
 572 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 573 /*
 574  *      mptscsih_io_done - Main SCSI IO callback routine registered to
 575  *      Fusion MPT (base) driver
 576  *      @ioc: Pointer to MPT_ADAPTER structure
 577  *      @mf: Pointer to original MPT request frame
 578  *      @r: Pointer to MPT reply frame (NULL if TurboReply)
 579  *
 580  *      This routine is called from mpt.c::mpt_interrupt() at the completion
 581  *      of any SCSI IO request.
 582  *      This routine is registered with the Fusion MPT (base) driver at driver
 583  *      load/init time via the mpt_register() API call.
 584  *
 585  *      Returns 1 indicating alloc'd request frame ptr should be freed.
 586  */
 587 int
 588 mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
 589 {
 590         struct scsi_cmnd        *sc;
 591         MPT_SCSI_HOST   *hd;
 592         SCSIIORequest_t *pScsiReq;
 593         SCSIIOReply_t   *pScsiReply;
 594         u16              req_idx, req_idx_MR;
 595         VirtDevice       *vdevice;
 596         VirtTarget       *vtarget;
 597
 598         hd = shost_priv(ioc->sh);
 599         req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
 600         req_idx_MR = (mr != NULL) ?
 601             le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
 602
 603         /* Special case, where already freed message frame is received from
 604          * Firmware. It happens with Resetting IOC.
 605          * Return immediately. Do not care
 606          */
 607         if ((req_idx != req_idx_MR) ||
 608             (le32_to_cpu(mf->u.frame.linkage.arg1) == 0xdeadbeaf))
 609                 return 0;
 610
 611         sc = mptscsih_getclear_scsi_lookup(ioc, req_idx);
 612         if (sc == NULL) {
 613                 MPIHeader_t *hdr = (MPIHeader_t *)mf;
 614
 615                 /* Remark: writeSDP1 will use the ScsiDoneCtx
 616                  * If a SCSI I/O cmd, device disabled by OS and
 617                  * completion done. Cannot touch sc struct. Just free mem.
 618                  */
 619                 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST)
 620                         printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n",
 621                         ioc->name);
 622
 623                 mptscsih_freeChainBuffers(ioc, req_idx);
 624                 return 1;
 625         }
 626
 627         if ((unsigned char *)mf != sc->host_scribble) {
 628                 mptscsih_freeChainBuffers(ioc, req_idx);
 629                 return 1;
 630         }
 631
 632         if (ioc->bus_type == SAS) {
 633                 VirtDevice *vdevice = sc->device->hostdata;
 634
 635                 if (!vdevice || !vdevice->vtarget ||
 636                     vdevice->vtarget->deleted) {
 637                         sc->result = DID_NO_CONNECT << 16;
 638                         goto out;
 639                 }
 640         }
 641
 642         sc->host_scribble = NULL;
 643         sc->result = DID_OK << 16;              /* Set default reply as OK */
 644         pScsiReq = (SCSIIORequest_t *) mf;
 645         pScsiReply = (SCSIIOReply_t *) mr;
 646
 647         if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
 648                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 649                         "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n",
 650                         ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag));
 651         }else{
 652                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 653                         "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
 654                         ioc->name, mf, mr, sc, req_idx));
 655         }
 656
 657         if (pScsiReply == NULL) {
 658                 /* special context reply handling */
 659                 ;
 660         } else {
 661                 u32      xfer_cnt;
 662                 u16      status;
 663                 u8       scsi_state, scsi_status;
 664                 u32      log_info;
 665
 666                 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
 667
 668                 scsi_state = pScsiReply->SCSIState;
 669                 scsi_status = pScsiReply->SCSIStatus;
 670                 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
 671                 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
 672                 log_info = le32_to_cpu(pScsiReply->IOCLogInfo);
 673
 674                 /*
 675                  *  if we get a data underrun indication, yet no data was
 676                  *  transferred and the SCSI status indicates that the
 677                  *  command was never started, change the data underrun
 678                  *  to success
 679                  */
 680                 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
 681                     (scsi_status == MPI_SCSI_STATUS_BUSY ||
 682                      scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT ||
 683                      scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) {
 684                         status = MPI_IOCSTATUS_SUCCESS;
 685                 }
 686
 687                 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
 688                         mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);
 689
 690                 /*
 691                  *  Look for + dump FCP ResponseInfo[]!
 692                  */
 693                 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
 694                     pScsiReply->ResponseInfo) {
 695                         printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%llu] "
 696                         "FCP_ResponseInfo=%08xh\n", ioc->name,
 697                         sc->device->host->host_no, sc->device->channel,
 698                         sc->device->id, sc->device->lun,
 699                         le32_to_cpu(pScsiReply->ResponseInfo));
 700                 }
 701
 702                 switch(status) {
 703                 case MPI_IOCSTATUS_BUSY:                        /* 0x0002 */
 704                 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:      /* 0x0006 */
 705                         /* CHECKME!
 706                          * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry)
 707                          * But not: DID_BUS_BUSY lest one risk
 708                          * killing interrupt handler:-(
 709                          */
 710                         sc->result = SAM_STAT_BUSY;
 711                         break;
 712
 713                 case MPI_IOCSTATUS_SCSI_INVALID_BUS:            /* 0x0041 */
 714                 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:       /* 0x0042 */
 715                         sc->result = DID_BAD_TARGET << 16;
 716                         break;
 717
 718                 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
 719                         /* Spoof to SCSI Selection Timeout! */
 720                         if (ioc->bus_type != FC)
 721                                 sc->result = DID_NO_CONNECT << 16;
 722                         /* else fibre, just stall until rescan event */
 723                         else
 724                                 sc->result = DID_REQUEUE << 16;
 725
 726                         if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
 727                                 hd->sel_timeout[pScsiReq->TargetID]++;
 728
 729                         vdevice = sc->device->hostdata;
 730                         if (!vdevice)
 731                                 break;
 732                         vtarget = vdevice->vtarget;
 733                         if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) {
 734                                 mptscsih_issue_sep_command(ioc, vtarget,
 735                                     MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED);
 736                                 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON;
 737                         }
 738                         break;
 739
 740                 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
 741                         if ( ioc->bus_type == SAS ) {
 742                                 u16 ioc_status =
 743                                     le16_to_cpu(pScsiReply->IOCStatus);
 744                                 if ((ioc_status &
 745                                         MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
 746                                         &&
 747                                         ((log_info & SAS_LOGINFO_MASK) ==
 748                                         SAS_LOGINFO_NEXUS_LOSS)) {
 749                                                 VirtDevice *vdevice =
 750                                                 sc->device->hostdata;
 751
 752                                             /* flag the device as being in
 753                                              * device removal delay so we can
 754                                              * notify the midlayer to hold off
 755                                              * on timeout eh */
 756                                                 if (vdevice && vdevice->
 757                                                         vtarget &&
 758                                                         vdevice->vtarget->
 759                                                         raidVolume)
 760                                                         printk(KERN_INFO
 761                                                         "Skipping Raid Volume"
 762                                                         "for inDMD\n");
 763                                                 else if (vdevice &&
 764                                                         vdevice->vtarget)
 765                                                         vdevice->vtarget->
 766                                                                 inDMD = 1;
 767
 768                                             sc->result =
 769                                                     (DID_TRANSPORT_DISRUPTED
 770                                                     << 16);
 771                                             break;
 772                                 }
 773                         } else if (ioc->bus_type == FC) {
 774                                 /*
 775                                  * The FC IOC may kill a request for variety of
 776                                  * reasons, some of which may be recovered by a
 777                                  * retry, some which are unlikely to be
 778                                  * recovered. Return DID_ERROR instead of
 779                                  * DID_RESET to permit retry of the command,
 780                                  * just not an infinite number of them
 781                                  */
 782                                 sc->result = DID_ERROR << 16;
 783                                 break;
 784                         }
 785
 786                         /*
 787                          * Allow non-SAS & non-NEXUS_LOSS to drop into below code
 788                          */
 789
 790                 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
 791                         /* Linux handles an unsolicited DID_RESET better
 792                          * than an unsolicited DID_ABORT.
 793                          */
 794                         sc->result = DID_RESET << 16;
 795                         break;
 796
 797                 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
 798                         if (ioc->bus_type == FC)
 799                                 sc->result = DID_ERROR << 16;
 800                         else
 801                                 sc->result = DID_RESET << 16;
 802                         break;
 803
 804                 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:      /* 0x0049 */
 805                         scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
 806                         if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
 807                                 sc->result=DID_SOFT_ERROR << 16;
 808                         else /* Sufficient data transfer occurred */
 809                                 sc->result = (DID_OK << 16) | scsi_status;
 810                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 811                             "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
 812                             ioc->name, sc->result, sc->device->channel, sc->device->id));
 813                         break;
 814
 815                 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
 816                         /*
 817                          *  Do upfront check for valid SenseData and give it
 818                          *  precedence!
 819                          */
 820                         sc->result = (DID_OK << 16) | scsi_status;
 821                         if (!(scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
 822
 823                                 /*
 824                                  * For an Errata on LSI53C1030
 825                                  * When the length of request data
 826                                  * and transfer data are different
 827                                  * with result of command (READ or VERIFY),
 828                                  * DID_SOFT_ERROR is set.
 829                                  */
 830                                 if (ioc->bus_type == SPI) {
 831                                         if ((pScsiReq->CDB[0] == READ_6  && ((pScsiReq->CDB[1] & 0x02) == 0)) ||
 832                                             pScsiReq->CDB[0] == READ_10 ||
 833                                             pScsiReq->CDB[0] == READ_12 ||
 834                                                 (pScsiReq->CDB[0] == READ_16 &&
 835                                                 ((pScsiReq->CDB[1] & 0x02) == 0)) ||
 836                                             pScsiReq->CDB[0] == VERIFY  ||
 837                                             pScsiReq->CDB[0] == VERIFY_16) {
 838                                                 if (scsi_bufflen(sc) !=
 839                                                         xfer_cnt) {
 840                                                         sc->result =
 841                                                         DID_SOFT_ERROR << 16;
 842                                                     printk(KERN_WARNING "Errata"
 843                                                     "on LSI53C1030 occurred."
 844                                                     "sc->req_bufflen=0x%02x,"
 845                                                     "xfer_cnt=0x%02x\n",
 846                                                     scsi_bufflen(sc),
 847                                                     xfer_cnt);
 848                                                 }
 849                                         }
 850                                 }
 851
 852                                 if (xfer_cnt < sc->underflow) {
 853                                         if (scsi_status == SAM_STAT_BUSY)
 854                                                 sc->result = SAM_STAT_BUSY;
 855                                         else
 856                                                 sc->result = DID_SOFT_ERROR << 16;
 857                                 }
 858                                 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
 859                                         /* What to do?
 860                                         */
 861                                         sc->result = DID_SOFT_ERROR << 16;
 862                                 }
 863                                 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
 864                                         /*  Not real sure here either...  */
 865                                         sc->result = DID_RESET << 16;
 866                                 }
 867                         }
 868
 869
 870                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 871                             "  sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
 872                             ioc->name, sc->underflow));
 873                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 874                             "  ActBytesXferd=%02xh\n", ioc->name, xfer_cnt));
 875
 876                         /* Report Queue Full
 877                          */
 878                         if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
 879                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 880
 881                         break;
 882
 883                 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:           /* 0x0044 */
 884                         scsi_set_resid(sc, 0);
 885                 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
 886                 case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
 887                         sc->result = (DID_OK << 16) | scsi_status;
 888                         if (scsi_state == 0) {
 889                                 ;
 890                         } else if (scsi_state &
 891                             MPI_SCSI_STATE_AUTOSENSE_VALID) {
 892
 893                                 /*
 894                                  * For potential trouble on LSI53C1030.
 895                                  * (date:2007.xx.)
 896                                  * It is checked whether the length of
 897                                  * request data is equal to
 898                                  * the length of transfer and residual.
 899                                  * MEDIUM_ERROR is set by incorrect data.
 900                                  */
 901                                 if ((ioc->bus_type == SPI) &&
 902                                         (sc->sense_buffer[2] & 0x20)) {
 903                                         u32      difftransfer;
 904                                         difftransfer =
 905                                         sc->sense_buffer[3] << 24 |
 906                                         sc->sense_buffer[4] << 16 |
 907                                         sc->sense_buffer[5] << 8 |
 908                                         sc->sense_buffer[6];
 909                                         if (((sc->sense_buffer[3] & 0x80) ==
 910                                                 0x80) && (scsi_bufflen(sc)
 911                                                 != xfer_cnt)) {
 912                                                 sc->sense_buffer[2] =
 913                                                     MEDIUM_ERROR;
 914                                                 sc->sense_buffer[12] = 0xff;
 915                                                 sc->sense_buffer[13] = 0xff;
 916                                                 printk(KERN_WARNING"Errata"
 917                                                 "on LSI53C1030 occurred."
 918                                                 "sc->req_bufflen=0x%02x,"
 919                                                 "xfer_cnt=0x%02x\n" ,
 920                                                 scsi_bufflen(sc),
 921                                                 xfer_cnt);
 922                                         }
 923                                         if (((sc->sense_buffer[3] & 0x80)
 924                                                 != 0x80) &&
 925                                                 (scsi_bufflen(sc) !=
 926                                                 xfer_cnt + difftransfer)) {
 927                                                 sc->sense_buffer[2] =
 928                                                         MEDIUM_ERROR;
 929                                                 sc->sense_buffer[12] = 0xff;
 930                                                 sc->sense_buffer[13] = 0xff;
 931                                                 printk(KERN_WARNING
 932                                                 "Errata on LSI53C1030 occurred"
 933                                                 "sc->req_bufflen=0x%02x,"
 934                                                 " xfer_cnt=0x%02x,"
 935                                                 "difftransfer=0x%02x\n",
 936                                                 scsi_bufflen(sc),
 937                                                 xfer_cnt,
 938                                                 difftransfer);
 939                                         }
 940                                 }
 941
 942                                 /*
 943                                  * If running against circa 200003dd 909 MPT f/w,
 944                                  * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
 945                                  * (QUEUE_FULL) returned from device! --> get 0x0000?128
 946                                  * and with SenseBytes set to 0.
 947                                  */
 948                                 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
 949                                         mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 950
 951                         }
 952                         else if (scsi_state &
 953                                  (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
 954                            ) {
 955                                 /*
 956                                  * What to do?
 957                                  */
 958                                 sc->result = DID_SOFT_ERROR << 16;
 959                         }
 960                         else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
 961                                 /*  Not real sure here either...  */
 962                                 sc->result = DID_RESET << 16;
 963                         }
 964                         else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
 965                                 /* Device Inq. data indicates that it supports
 966                                  * QTags, but rejects QTag messages.
 967                                  * This command completed OK.
 968                                  *
 969                                  * Not real sure here either so do nothing...  */
 970                         }
 971
 972                         if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
 973                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 974
 975                         /* Add handling of:
 976                          * Reservation Conflict, Busy,
 977                          * Command Terminated, CHECK
 978                          */
 979                         break;
 980
 981                 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
 982                         sc->result = DID_SOFT_ERROR << 16;
 983                         break;
 984
 985                 case MPI_IOCSTATUS_INVALID_FUNCTION:            /* 0x0001 */
 986                 case MPI_IOCSTATUS_INVALID_SGL:                 /* 0x0003 */
 987                 case MPI_IOCSTATUS_INTERNAL_ERROR:              /* 0x0004 */
 988                 case MPI_IOCSTATUS_RESERVED:                    /* 0x0005 */
 989                 case MPI_IOCSTATUS_INVALID_FIELD:               /* 0x0007 */
 990                 case MPI_IOCSTATUS_INVALID_STATE:               /* 0x0008 */
 991                 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
 992                 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:       /* 0x004A */
 993                 default:
 994                         /*
 995                          * What to do?
 996                          */
 997                         sc->result = DID_SOFT_ERROR << 16;
 998                         break;
 999
1000                 }       /* switch(status) */
1001
1002 #ifdef CONFIG_FUSION_LOGGING
1003                 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
1004                         mptscsih_info_scsiio(ioc, sc, pScsiReply);
1005 #endif
1006
1007         } /* end of address reply case */
1008 out:
1009         /* Unmap the DMA buffers, if any. */
1010         scsi_dma_unmap(sc);
1011
1012         sc->scsi_done(sc);              /* Issue the command callback */
1013
1014         /* Free Chain buffers */
1015         mptscsih_freeChainBuffers(ioc, req_idx);
1016         return 1;
1017 }
1018
1019 /*
1020  *      mptscsih_flush_running_cmds - For each command found, search
1021  *              Scsi_Host instance taskQ and reply to OS.
1022  *              Called only if recovering from a FW reload.
1023  *      @hd: Pointer to a SCSI HOST structure
1024  *
1025  *      Returns: None.
1026  *
1027  *      Must be called while new I/Os are being queued.
1028  */
1029 void
1030 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
1031 {
1032         MPT_ADAPTER *ioc = hd->ioc;
1033         struct scsi_cmnd *sc;
1034         SCSIIORequest_t *mf = NULL;
1035         int              ii;
1036         int              channel, id;
1037
1038         for (ii= 0; ii < ioc->req_depth; ii++) {
1039                 sc = mptscsih_getclear_scsi_lookup(ioc, ii);
1040                 if (!sc)
1041                         continue;
1042                 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1043                 if (!mf)
1044                         continue;
1045                 channel = mf->Bus;
1046                 id = mf->TargetID;
1047                 mptscsih_freeChainBuffers(ioc, ii);
1048                 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1049                 if ((unsigned char *)mf != sc->host_scribble)
1050                         continue;
1051                 scsi_dma_unmap(sc);
1052                 sc->result = DID_RESET << 16;
1053                 sc->host_scribble = NULL;
1054                 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
1055                     "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, "
1056                     "idx=%x\n", ioc->name, channel, id, sc, mf, ii));
1057                 sc->scsi_done(sc);
1058         }
1059 }
1060 EXPORT_SYMBOL(mptscsih_flush_running_cmds);
1061
1062 /*
1063  *      mptscsih_search_running_cmds - Delete any commands associated
1064  *              with the specified target and lun. Function called only
1065  *              when a lun is disable by mid-layer.
1066  *              Do NOT access the referenced scsi_cmnd structure or
1067  *              members. Will cause either a paging or NULL ptr error.
1068  *              (BUT, BUT, BUT, the code does reference it! - mdr)
1069  *      @hd: Pointer to a SCSI HOST structure
1070  *      @vdevice: per device private data
1071  *
1072  *      Returns: None.
1073  *
1074  *      Called from slave_destroy.
1075  */
1076 static void
1077 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
1078 {
1079         SCSIIORequest_t *mf = NULL;
1080         int              ii;
1081         struct scsi_cmnd *sc;
1082         struct scsi_lun  lun;
1083         MPT_ADAPTER *ioc = hd->ioc;
1084         unsigned long   flags;
1085
1086         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1087         for (ii = 0; ii < ioc->req_depth; ii++) {
1088                 if ((sc = ioc->ScsiLookup[ii]) != NULL) {
1089
1090                         mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1091                         if (mf == NULL)
1092                                 continue;
1093                         /* If the device is a hidden raid component, then its
1094                          * expected that the mf->function will be RAID_SCSI_IO
1095                          */
1096                         if (vdevice->vtarget->tflags &
1097                             MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
1098                             MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
1099                                 continue;
1100
1101                         int_to_scsilun(vdevice->lun, &lun);
1102                         if ((mf->Bus != vdevice->vtarget->channel) ||
1103                             (mf->TargetID != vdevice->vtarget->id) ||
1104                             memcmp(lun.scsi_lun, mf->LUN, 8))
1105                                 continue;
1106
1107                         if ((unsigned char *)mf != sc->host_scribble)
1108                                 continue;
1109                         ioc->ScsiLookup[ii] = NULL;
1110                         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1111                         mptscsih_freeChainBuffers(ioc, ii);
1112                         mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1113                         scsi_dma_unmap(sc);
1114                         sc->host_scribble = NULL;
1115                         sc->result = DID_NO_CONNECT << 16;
1116                         dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device,
1117                            MYIOC_s_FMT "completing cmds: fw_channel %d, "
1118                            "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name,
1119                            vdevice->vtarget->channel, vdevice->vtarget->id,
1120                            sc, mf, ii));
1121                         sc->scsi_done(sc);
1122                         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1123                 }
1124         }
1125         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1126         return;
1127 }
1128
1129 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1130
1131 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1132 /*
1133  *      mptscsih_report_queue_full - Report QUEUE_FULL status returned
1134  *      from a SCSI target device.
1135  *      @sc: Pointer to scsi_cmnd structure
1136  *      @pScsiReply: Pointer to SCSIIOReply_t
1137  *      @pScsiReq: Pointer to original SCSI request
1138  *
1139  *      This routine periodically reports QUEUE_FULL status returned from a
1140  *      SCSI target device.  It reports this to the console via kernel
1141  *      printk() API call, not more than once every 10 seconds.
1142  */
1143 static void
1144 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1145 {
1146         long time = jiffies;
1147         MPT_SCSI_HOST           *hd;
1148         MPT_ADAPTER     *ioc;
1149
1150         if (sc->device == NULL)
1151                 return;
1152         if (sc->device->host == NULL)
1153                 return;
1154         if ((hd = shost_priv(sc->device->host)) == NULL)
1155                 return;
1156         ioc = hd->ioc;
1157         if (time - hd->last_queue_full > 10 * HZ) {
1158                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%llu) reported QUEUE_FULL!\n",
1159                                 ioc->name, 0, sc->device->id, sc->device->lun));
1160                 hd->last_queue_full = time;
1161         }
1162 }
1163
1164 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1165 /*
1166  *      mptscsih_remove - Removed scsi devices
1167  *      @pdev: Pointer to pci_dev structure
1168  *
1169  *
1170  */
1171 void
1172 mptscsih_remove(struct pci_dev *pdev)
1173 {
1174         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1175         struct Scsi_Host        *host = ioc->sh;
1176         MPT_SCSI_HOST           *hd;
1177         int sz1;
1178
1179         scsi_remove_host(host);
1180
1181         if((hd = shost_priv(host)) == NULL)
1182                 return;
1183
1184         mptscsih_shutdown(pdev);
1185
1186         sz1=0;
1187
1188         if (ioc->ScsiLookup != NULL) {
1189                 sz1 = ioc->req_depth * sizeof(void *);
1190                 kfree(ioc->ScsiLookup);
1191                 ioc->ScsiLookup = NULL;
1192         }
1193
1194         dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1195             "Free'd ScsiLookup (%d) memory\n",
1196             ioc->name, sz1));
1197
1198         kfree(hd->info_kbuf);
1199
1200         /* NULL the Scsi_Host pointer
1201          */
1202         ioc->sh = NULL;
1203
1204         scsi_host_put(host);
1205
1206         mpt_detach(pdev);
1207
1208 }
1209
1210 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1211 /*
1212  *      mptscsih_shutdown - reboot notifier
1213  *
1214  */
1215 void
1216 mptscsih_shutdown(struct pci_dev *pdev)
1217 {
1218 }
1219
1220 #ifdef CONFIG_PM
1221 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1222 /*
1223  *      mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1224  *
1225  *
1226  */
1227 int
1228 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1229 {
1230         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1231
1232         scsi_block_requests(ioc->sh);
1233         flush_scheduled_work();
1234         mptscsih_shutdown(pdev);
1235         return mpt_suspend(pdev,state);
1236 }
1237
1238 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1239 /*
1240  *      mptscsih_resume - Fusion MPT scsi driver resume routine.
1241  *
1242  *
1243  */
1244 int
1245 mptscsih_resume(struct pci_dev *pdev)
1246 {
1247         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1248         int rc;
1249
1250         rc = mpt_resume(pdev);
1251         scsi_unblock_requests(ioc->sh);
1252         return rc;
1253 }
1254
1255 #endif
1256
1257 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1258 /**
1259  *      mptscsih_info - Return information about MPT adapter
1260  *      @SChost: Pointer to Scsi_Host structure
1261  *
1262  *      (linux scsi_host_template.info routine)
1263  *
1264  *      Returns pointer to buffer where information was written.
1265  */
1266 const char *
1267 mptscsih_info(struct Scsi_Host *SChost)
1268 {
1269         MPT_SCSI_HOST *h;
1270         int size = 0;
1271
1272         h = shost_priv(SChost);
1273
1274         if (h->info_kbuf == NULL)
1275                 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1276                         return h->info_kbuf;
1277         h->info_kbuf[0] = '\0';
1278
1279         mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1280         h->info_kbuf[size-1] = '\0';
1281
1282         return h->info_kbuf;
1283 }
1284
1285 int mptscsih_show_info(struct seq_file *m, struct Scsi_Host *host)
1286 {
1287         MPT_SCSI_HOST   *hd = shost_priv(host);
1288         MPT_ADAPTER     *ioc = hd->ioc;
1289
1290         seq_printf(m, "%s: %s, ", ioc->name, ioc->prod_name);
1291         seq_printf(m, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1292         seq_printf(m, "Ports=%d, ", ioc->facts.NumberOfPorts);
1293         seq_printf(m, "MaxQ=%d\n", ioc->req_depth);
1294
1295         return 0;
1296 }
1297
1298 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1299 #define ADD_INDEX_LOG(req_ent)  do { } while(0)
1300
1301 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1302 /**
1303  *      mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1304  *      @SCpnt: Pointer to scsi_cmnd structure
1305  *
1306  *      (linux scsi_host_template.queuecommand routine)
1307  *      This is the primary SCSI IO start routine.  Create a MPI SCSIIORequest
1308  *      from a linux scsi_cmnd request and send it to the IOC.
1309  *
1310  *      Returns 0. (rtn value discarded by linux scsi mid-layer)
1311  */
1312 int
1313 mptscsih_qcmd(struct scsi_cmnd *SCpnt)
1314 {
1315         MPT_SCSI_HOST           *hd;
1316         MPT_FRAME_HDR           *mf;
1317         SCSIIORequest_t         *pScsiReq;
1318         VirtDevice              *vdevice = SCpnt->device->hostdata;
1319         u32      datalen;
1320         u32      scsictl;
1321         u32      scsidir;
1322         u32      cmd_len;
1323         int      my_idx;
1324         int      ii;
1325         MPT_ADAPTER *ioc;
1326
1327         hd = shost_priv(SCpnt->device->host);
1328         ioc = hd->ioc;
1329
1330         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p\n",
1331                 ioc->name, SCpnt));
1332
1333         if (ioc->taskmgmt_quiesce_io)
1334                 return SCSI_MLQUEUE_HOST_BUSY;
1335
1336         /*
1337          *  Put together a MPT SCSI request...
1338          */
1339         if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1340                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1341                                 ioc->name));
1342                 return SCSI_MLQUEUE_HOST_BUSY;
1343         }
1344
1345         pScsiReq = (SCSIIORequest_t *) mf;
1346
1347         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1348
1349         ADD_INDEX_LOG(my_idx);
1350
1351         /*    TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1352          *    Seems we may receive a buffer (datalen>0) even when there
1353          *    will be no data transfer!  GRRRRR...
1354          */
1355         if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1356                 datalen = scsi_bufflen(SCpnt);
1357                 scsidir = MPI_SCSIIO_CONTROL_READ;      /* DATA IN  (host<--ioc<--dev) */
1358         } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1359                 datalen = scsi_bufflen(SCpnt);
1360                 scsidir = MPI_SCSIIO_CONTROL_WRITE;     /* DATA OUT (host-->ioc-->dev) */
1361         } else {
1362                 datalen = 0;
1363                 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1364         }
1365
1366         /* Default to untagged. Once a target structure has been allocated,
1367          * use the Inquiry data to determine if device supports tagged.
1368          */
1369         if ((vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1370             && (SCpnt->device->tagged_supported)) {
1371                 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1372                 if (SCpnt->request && SCpnt->request->ioprio) {
1373                         if (((SCpnt->request->ioprio & 0x7) == 1) ||
1374                                 !(SCpnt->request->ioprio & 0x7))
1375                                 scsictl |= MPI_SCSIIO_CONTROL_HEADOFQ;
1376                 }
1377         } else
1378                 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1379
1380
1381         /* Use the above information to set up the message frame
1382          */
1383         pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1384         pScsiReq->Bus = vdevice->vtarget->channel;
1385         pScsiReq->ChainOffset = 0;
1386         if (vdevice->vtarget->tflags &  MPT_TARGET_FLAGS_RAID_COMPONENT)
1387                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1388         else
1389                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1390         pScsiReq->CDBLength = SCpnt->cmd_len;
1391         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1392         pScsiReq->Reserved = 0;
1393         pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1394         int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1395         pScsiReq->Control = cpu_to_le32(scsictl);
1396
1397         /*
1398          *  Write SCSI CDB into the message
1399          */
1400         cmd_len = SCpnt->cmd_len;
1401         for (ii=0; ii < cmd_len; ii++)
1402                 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1403
1404         for (ii=cmd_len; ii < 16; ii++)
1405                 pScsiReq->CDB[ii] = 0;
1406
1407         /* DataLength */
1408         pScsiReq->DataLength = cpu_to_le32(datalen);
1409
1410         /* SenseBuffer low address */
1411         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1412                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1413
1414         /* Now add the SG list
1415          * Always have a SGE even if null length.
1416          */
1417         if (datalen == 0) {
1418                 /* Add a NULL SGE */
1419                 ioc->add_sge((char *)&pScsiReq->SGL,
1420                         MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1421                         (dma_addr_t) -1);
1422         } else {
1423                 /* Add a 32 or 64 bit SGE */
1424                 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1425                         goto fail;
1426         }
1427
1428         SCpnt->host_scribble = (unsigned char *)mf;
1429         mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1430
1431         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1432         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1433                         ioc->name, SCpnt, mf, my_idx));
1434         DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1435         return 0;
1436
1437  fail:
1438         mptscsih_freeChainBuffers(ioc, my_idx);
1439         mpt_free_msg_frame(ioc, mf);
1440         return SCSI_MLQUEUE_HOST_BUSY;
1441 }
1442
1443 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1444 /*
1445  *      mptscsih_freeChainBuffers - Function to free chain buffers associated
1446  *      with a SCSI IO request
1447  *      @hd: Pointer to the MPT_SCSI_HOST instance
1448  *      @req_idx: Index of the SCSI IO request frame.
1449  *
1450  *      Called if SG chain buffer allocation fails and mptscsih callbacks.
1451  *      No return.
1452  */
1453 static void
1454 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1455 {
1456         MPT_FRAME_HDR *chain;
1457         unsigned long flags;
1458         int chain_idx;
1459         int next;
1460
1461         /* Get the first chain index and reset
1462          * tracker state.
1463          */
1464         chain_idx = ioc->ReqToChain[req_idx];
1465         ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1466
1467         while (chain_idx != MPT_HOST_NO_CHAIN) {
1468
1469                 /* Save the next chain buffer index */
1470                 next = ioc->ChainToChain[chain_idx];
1471
1472                 /* Free this chain buffer and reset
1473                  * tracker
1474                  */
1475                 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1476
1477                 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1478                                         + (chain_idx * ioc->req_sz));
1479
1480                 spin_lock_irqsave(&ioc->FreeQlock, flags);
1481                 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1482                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1483
1484                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1485                                 ioc->name, chain_idx));
1486
1487                 /* handle next */
1488                 chain_idx = next;
1489         }
1490         return;
1491 }
1492
1493 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1494 /*
1495  *      Reset Handling
1496  */
1497
1498 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1499 /**
1500  *      mptscsih_IssueTaskMgmt - Generic send Task Management function.
1501  *      @hd: Pointer to MPT_SCSI_HOST structure
1502  *      @type: Task Management type
1503  *      @channel: channel number for task management
1504  *      @id: Logical Target ID for reset (if appropriate)
1505  *      @lun: Logical Unit for reset (if appropriate)
1506  *      @ctx2abort: Context for the task to be aborted (if appropriate)
1507  *      @timeout: timeout for task management control
1508  *
1509  *      Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1510  *      or a non-interrupt thread.  In the former, must not call schedule().
1511  *
1512  *      Not all fields are meaningfull for all task types.
1513  *
1514  *      Returns 0 for SUCCESS, or FAILED.
1515  *
1516  **/
1517 int
1518 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, u64 lun,
1519         int ctx2abort, ulong timeout)
1520 {
1521         MPT_FRAME_HDR   *mf;
1522         SCSITaskMgmt_t  *pScsiTm;
1523         int              ii;
1524         int              retval;
1525         MPT_ADAPTER     *ioc = hd->ioc;
1526         unsigned long    timeleft;
1527         u8               issue_hard_reset;
1528         u32              ioc_raw_state;
1529         unsigned long    time_count;
1530
1531         issue_hard_reset = 0;
1532         ioc_raw_state = mpt_GetIocState(ioc, 0);
1533
1534         if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1535                 printk(MYIOC_s_WARN_FMT
1536                         "TaskMgmt type=%x: IOC Not operational (0x%x)!\n",
1537                         ioc->name, type, ioc_raw_state);
1538                 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
1539                     ioc->name, __func__);
1540                 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1541                         printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset "
1542                             "FAILED!!\n", ioc->name);
1543                 return 0;
1544         }
1545
1546         /* DOORBELL ACTIVE check is not required if
1547         *  MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported.
1548         */
1549
1550         if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q)
1551                  && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) &&
1552                 (ioc_raw_state & MPI_DOORBELL_ACTIVE)) {
1553                 printk(MYIOC_s_WARN_FMT
1554                         "TaskMgmt type=%x: ioc_state: "
1555                         "DOORBELL_ACTIVE (0x%x)!\n",
1556                         ioc->name, type, ioc_raw_state);
1557                 return FAILED;
1558         }
1559
1560         mutex_lock(&ioc->taskmgmt_cmds.mutex);
1561         if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
1562                 mf = NULL;
1563                 retval = FAILED;
1564                 goto out;
1565         }
1566
1567         /* Return Fail to calling function if no message frames available.
1568          */
1569         if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1570                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1571                         "TaskMgmt no msg frames!!\n", ioc->name));
1572                 retval = FAILED;
1573                 mpt_clear_taskmgmt_in_progress_flag(ioc);
1574                 goto out;
1575         }
1576         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
1577                         ioc->name, mf));
1578
1579         /* Format the Request
1580          */
1581         pScsiTm = (SCSITaskMgmt_t *) mf;
1582         pScsiTm->TargetID = id;
1583         pScsiTm->Bus = channel;
1584         pScsiTm->ChainOffset = 0;
1585         pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1586
1587         pScsiTm->Reserved = 0;
1588         pScsiTm->TaskType = type;
1589         pScsiTm->Reserved1 = 0;
1590         pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1591                     ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1592
1593         int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1594
1595         for (ii=0; ii < 7; ii++)
1596                 pScsiTm->Reserved2[ii] = 0;
1597
1598         pScsiTm->TaskMsgContext = ctx2abort;
1599
1600         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) "
1601                 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort,
1602                 type, timeout));
1603
1604         DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1605
1606         INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1607         time_count = jiffies;
1608         if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1609             (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1610                 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1611         else {
1612                 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1613                         sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1614                 if (retval) {
1615                         dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1616                                 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n",
1617                                 ioc->name, mf, retval));
1618                         mpt_free_msg_frame(ioc, mf);
1619                         mpt_clear_taskmgmt_in_progress_flag(ioc);
1620                         goto out;
1621                 }
1622         }
1623
1624         timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
1625                 timeout*HZ);
1626         if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
1627                 retval = FAILED;
1628                 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
1629                     "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf));
1630                 mpt_clear_taskmgmt_in_progress_flag(ioc);
1631                 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
1632                         goto out;
1633                 issue_hard_reset = 1;
1634                 goto out;
1635         }
1636
1637         retval = mptscsih_taskmgmt_reply(ioc, type,
1638             (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply);
1639
1640         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1641             "TaskMgmt completed (%d seconds)\n",
1642             ioc->name, jiffies_to_msecs(jiffies - time_count)/1000));
1643
1644  out:
1645
1646         CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1647         if (issue_hard_reset) {
1648                 printk(MYIOC_s_WARN_FMT
1649                        "Issuing Reset from %s!! doorbell=0x%08x\n",
1650                        ioc->name, __func__, mpt_GetIocState(ioc, 0));
1651                 retval = (ioc->bus_type == SAS) ?
1652                         mpt_HardResetHandler(ioc, CAN_SLEEP) :
1653                         mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1654                 mpt_free_msg_frame(ioc, mf);
1655         }
1656
1657         retval = (retval == 0) ? 0 : FAILED;
1658         mutex_unlock(&ioc->taskmgmt_cmds.mutex);
1659         return retval;
1660 }
1661 EXPORT_SYMBOL(mptscsih_IssueTaskMgmt);
1662
1663 static int
1664 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1665 {
1666         switch (ioc->bus_type) {
1667         case FC:
1668                 return 40;
1669         case SAS:
1670                 return 30;
1671         case SPI:
1672         default:
1673                 return 10;
1674         }
1675 }
1676
1677 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1678 /**
1679  *      mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1680  *      @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1681  *
1682  *      (linux scsi_host_template.eh_abort_handler routine)
1683  *
1684  *      Returns SUCCESS or FAILED.
1685  **/
1686 int
1687 mptscsih_abort(struct scsi_cmnd * SCpnt)
1688 {
1689         MPT_SCSI_HOST   *hd;
1690         MPT_FRAME_HDR   *mf;
1691         u32              ctx2abort;
1692         int              scpnt_idx;
1693         int              retval;
1694         VirtDevice       *vdevice;
1695         MPT_ADAPTER     *ioc;
1696
1697         /* If we can't locate our host adapter structure, return FAILED status.
1698          */
1699         if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1700                 SCpnt->result = DID_RESET << 16;
1701                 SCpnt->scsi_done(SCpnt);
1702                 printk(KERN_ERR MYNAM ": task abort: "
1703                     "can't locate host! (sc=%p)\n", SCpnt);
1704                 return FAILED;
1705         }
1706
1707         ioc = hd->ioc;
1708         printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1709                ioc->name, SCpnt);
1710         scsi_print_command(SCpnt);
1711
1712         vdevice = SCpnt->device->hostdata;
1713         if (!vdevice || !vdevice->vtarget) {
1714                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1715                     "task abort: device has been deleted (sc=%p)\n",
1716                     ioc->name, SCpnt));
1717                 SCpnt->result = DID_NO_CONNECT << 16;
1718                 SCpnt->scsi_done(SCpnt);
1719                 retval = SUCCESS;
1720                 goto out;
1721         }
1722
1723         /* Task aborts are not supported for hidden raid components.
1724          */
1725         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1726                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1727                     "task abort: hidden raid component (sc=%p)\n",
1728                     ioc->name, SCpnt));
1729                 SCpnt->result = DID_RESET << 16;
1730                 retval = FAILED;
1731                 goto out;
1732         }
1733
1734         /* Task aborts are not supported for volumes.
1735          */
1736         if (vdevice->vtarget->raidVolume) {
1737                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1738                     "task abort: raid volume (sc=%p)\n",
1739                     ioc->name, SCpnt));
1740                 SCpnt->result = DID_RESET << 16;
1741                 retval = FAILED;
1742                 goto out;
1743         }
1744
1745         /* Find this command
1746          */
1747         if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1748                 /* Cmd not found in ScsiLookup.
1749                  * Do OS callback.
1750                  */
1751                 SCpnt->result = DID_RESET << 16;
1752                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1753                    "Command not in the active list! (sc=%p)\n", ioc->name,
1754                    SCpnt));
1755                 retval = SUCCESS;
1756                 goto out;
1757         }
1758
1759         if (ioc->timeouts < -1)
1760                 ioc->timeouts++;
1761
1762         if (mpt_fwfault_debug)
1763                 mpt_halt_firmware(ioc);
1764
1765         /* Most important!  Set TaskMsgContext to SCpnt's MsgContext!
1766          * (the IO to be ABORT'd)
1767          *
1768          * NOTE: Since we do not byteswap MsgContext, we do not
1769          *       swap it here either.  It is an opaque cookie to
1770          *       the controller, so it does not matter. -DaveM
1771          */
1772         mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1773         ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1774         retval = mptscsih_IssueTaskMgmt(hd,
1775                          MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1776                          vdevice->vtarget->channel,
1777                          vdevice->vtarget->id, vdevice->lun,
1778                          ctx2abort, mptscsih_get_tm_timeout(ioc));
1779
1780         if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) {
1781                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1782                     "task abort: command still in active list! (sc=%p)\n",
1783                     ioc->name, SCpnt));
1784                 retval = FAILED;
1785         } else {
1786                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1787                     "task abort: command cleared from active list! (sc=%p)\n",
1788                     ioc->name, SCpnt));
1789                 retval = SUCCESS;
1790         }
1791
1792  out:
1793         printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n",
1794             ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval,
1795             SCpnt);
1796
1797         return retval;
1798 }
1799
1800 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1801 /**
1802  *      mptscsih_dev_reset - Perform a SCSI TARGET_RESET!  new_eh variant
1803  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1804  *
1805  *      (linux scsi_host_template.eh_dev_reset_handler routine)
1806  *
1807  *      Returns SUCCESS or FAILED.
1808  **/
1809 int
1810 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1811 {
1812         MPT_SCSI_HOST   *hd;
1813         int              retval;
1814         VirtDevice       *vdevice;
1815         MPT_ADAPTER     *ioc;
1816
1817         /* If we can't locate our host adapter structure, return FAILED status.
1818          */
1819         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1820                 printk(KERN_ERR MYNAM ": target reset: "
1821                    "Can't locate host! (sc=%p)\n", SCpnt);
1822                 return FAILED;
1823         }
1824
1825         ioc = hd->ioc;
1826         printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1827                ioc->name, SCpnt);
1828         scsi_print_command(SCpnt);
1829
1830         vdevice = SCpnt->device->hostdata;
1831         if (!vdevice || !vdevice->vtarget) {
1832                 retval = 0;
1833                 goto out;
1834         }
1835
1836         /* Target reset to hidden raid component is not supported
1837          */
1838         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1839                 retval = FAILED;
1840                 goto out;
1841         }
1842
1843         retval = mptscsih_IssueTaskMgmt(hd,
1844                                 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1845                                 vdevice->vtarget->channel,
1846                                 vdevice->vtarget->id, 0, 0,
1847                                 mptscsih_get_tm_timeout(ioc));
1848
1849  out:
1850         printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1851             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1852
1853         if (retval == 0)
1854                 return SUCCESS;
1855         else
1856                 return FAILED;
1857 }
1858
1859
1860 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1861 /**
1862  *      mptscsih_bus_reset - Perform a SCSI BUS_RESET!  new_eh variant
1863  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1864  *
1865  *      (linux scsi_host_template.eh_bus_reset_handler routine)
1866  *
1867  *      Returns SUCCESS or FAILED.
1868  **/
1869 int
1870 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1871 {
1872         MPT_SCSI_HOST   *hd;
1873         int              retval;
1874         VirtDevice       *vdevice;
1875         MPT_ADAPTER     *ioc;
1876
1877         /* If we can't locate our host adapter structure, return FAILED status.
1878          */
1879         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1880                 printk(KERN_ERR MYNAM ": bus reset: "
1881                    "Can't locate host! (sc=%p)\n", SCpnt);
1882                 return FAILED;
1883         }
1884
1885         ioc = hd->ioc;
1886         printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1887                ioc->name, SCpnt);
1888         scsi_print_command(SCpnt);
1889
1890         if (ioc->timeouts < -1)
1891                 ioc->timeouts++;
1892
1893         vdevice = SCpnt->device->hostdata;
1894         if (!vdevice || !vdevice->vtarget)
1895                 return SUCCESS;
1896         retval = mptscsih_IssueTaskMgmt(hd,
1897                                         MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1898                                         vdevice->vtarget->channel, 0, 0, 0,
1899                                         mptscsih_get_tm_timeout(ioc));
1900
1901         printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1902             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1903
1904         if (retval == 0)
1905                 return SUCCESS;
1906         else
1907                 return FAILED;
1908 }
1909
1910 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1911 /**
1912  *      mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1913  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1914  *
1915  *      (linux scsi_host_template.eh_host_reset_handler routine)
1916  *
1917  *      Returns SUCCESS or FAILED.
1918  */
1919 int
1920 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1921 {
1922         MPT_SCSI_HOST *  hd;
1923         int              status = SUCCESS;
1924         MPT_ADAPTER     *ioc;
1925         int             retval;
1926
1927         /*  If we can't locate the host to reset, then we failed. */
1928         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1929                 printk(KERN_ERR MYNAM ": host reset: "
1930                     "Can't locate host! (sc=%p)\n", SCpnt);
1931                 return FAILED;
1932         }
1933
1934         /* make sure we have no outstanding commands at this stage */
1935         mptscsih_flush_running_cmds(hd);
1936
1937         ioc = hd->ioc;
1938         printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
1939             ioc->name, SCpnt);
1940
1941         /*  If our attempts to reset the host failed, then return a failed
1942          *  status.  The host will be taken off line by the SCSI mid-layer.
1943          */
1944     retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1945         if (retval < 0)
1946                 status = FAILED;
1947         else
1948                 status = SUCCESS;
1949
1950         printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
1951             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1952
1953         return status;
1954 }
1955
1956 static int
1957 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
1958         SCSITaskMgmtReply_t *pScsiTmReply)
1959 {
1960         u16                      iocstatus;
1961         u32                      termination_count;
1962         int                      retval;
1963
1964         if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
1965                 retval = FAILED;
1966                 goto out;
1967         }
1968
1969         DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
1970
1971         iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
1972         termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
1973
1974         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1975             "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n"
1976             "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n"
1977             "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus,
1978             pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus),
1979             le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode,
1980             termination_count));
1981
1982         if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
1983             pScsiTmReply->ResponseCode)
1984                 mptscsih_taskmgmt_response_code(ioc,
1985                     pScsiTmReply->ResponseCode);
1986
1987         if (iocstatus == MPI_IOCSTATUS_SUCCESS) {
1988                 retval = 0;
1989                 goto out;
1990         }
1991
1992         retval = FAILED;
1993         if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1994                 if (termination_count == 1)
1995                         retval = 0;
1996                 goto out;
1997         }
1998
1999         if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
2000            iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
2001                 retval = 0;
2002
2003  out:
2004         return retval;
2005 }
2006
2007 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2008 void
2009 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2010 {
2011         char *desc;
2012
2013         switch (response_code) {
2014         case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2015                 desc = "The task completed.";
2016                 break;
2017         case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2018                 desc = "The IOC received an invalid frame status.";
2019                 break;
2020         case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2021                 desc = "The task type is not supported.";
2022                 break;
2023         case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2024                 desc = "The requested task failed.";
2025                 break;
2026         case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2027                 desc = "The task completed successfully.";
2028                 break;
2029         case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2030                 desc = "The LUN request is invalid.";
2031                 break;
2032         case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2033                 desc = "The task is in the IOC queue and has not been sent to target.";
2034                 break;
2035         default:
2036                 desc = "unknown";
2037                 break;
2038         }
2039         printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2040                 ioc->name, response_code, desc);
2041 }
2042 EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
2043
2044 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2045 /**
2046  *      mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2047  *      @ioc: Pointer to MPT_ADAPTER structure
2048  *      @mf: Pointer to SCSI task mgmt request frame
2049  *      @mr: Pointer to SCSI task mgmt reply frame
2050  *
2051  *      This routine is called from mptbase.c::mpt_interrupt() at the completion
2052  *      of any SCSI task management request.
2053  *      This routine is registered with the MPT (base) driver at driver
2054  *      load/init time via the mpt_register() API call.
2055  *
2056  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2057  **/
2058 int
2059 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf,
2060         MPT_FRAME_HDR *mr)
2061 {
2062         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2063                 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr));
2064
2065         ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2066
2067         if (!mr)
2068                 goto out;
2069
2070         ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2071         memcpy(ioc->taskmgmt_cmds.reply, mr,
2072             min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
2073  out:
2074         if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
2075                 mpt_clear_taskmgmt_in_progress_flag(ioc);
2076                 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2077                 complete(&ioc->taskmgmt_cmds.done);
2078                 if (ioc->bus_type == SAS)
2079                         ioc->schedule_target_reset(ioc);
2080                 return 1;
2081         }
2082         return 0;
2083 }
2084
2085 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2086 /*
2087  *      This is anyones guess quite frankly.
2088  */
2089 int
2090 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2091                 sector_t capacity, int geom[])
2092 {
2093         int             heads;
2094         int             sectors;
2095         sector_t        cylinders;
2096         ulong           dummy;
2097
2098         heads = 64;
2099         sectors = 32;
2100
2101         dummy = heads * sectors;
2102         cylinders = capacity;
2103         sector_div(cylinders,dummy);
2104
2105         /*
2106          * Handle extended translation size for logical drives
2107          * > 1Gb
2108          */
2109         if ((ulong)capacity >= 0x200000) {
2110                 heads = 255;
2111                 sectors = 63;
2112                 dummy = heads * sectors;
2113                 cylinders = capacity;
2114                 sector_div(cylinders,dummy);
2115         }
2116
2117         /* return result */
2118         geom[0] = heads;
2119         geom[1] = sectors;
2120         geom[2] = cylinders;
2121
2122         return 0;
2123 }
2124
2125 /* Search IOC page 3 to determine if this is hidden physical disk
2126  *
2127  */
2128 int
2129 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2130 {
2131         struct inactive_raid_component_info *component_info;
2132         int i, j;
2133         RaidPhysDiskPage1_t *phys_disk;
2134         int rc = 0;
2135         int num_paths;
2136
2137         if (!ioc->raid_data.pIocPg3)
2138                 goto out;
2139         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2140                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2141                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2142                         rc = 1;
2143                         goto out;
2144                 }
2145         }
2146
2147         if (ioc->bus_type != SAS)
2148                 goto out;
2149
2150         /*
2151          * Check if dual path
2152          */
2153         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2154                 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2155                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2156                 if (num_paths < 2)
2157                         continue;
2158                 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2159                    (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2160                 if (!phys_disk)
2161                         continue;
2162                 if ((mpt_raid_phys_disk_pg1(ioc,
2163                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2164                     phys_disk))) {
2165                         kfree(phys_disk);
2166                         continue;
2167                 }
2168                 for (j = 0; j < num_paths; j++) {
2169                         if ((phys_disk->Path[j].Flags &
2170                             MPI_RAID_PHYSDISK1_FLAG_INVALID))
2171                                 continue;
2172                         if ((phys_disk->Path[j].Flags &
2173                             MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2174                                 continue;
2175                         if ((id == phys_disk->Path[j].PhysDiskID) &&
2176                             (channel == phys_disk->Path[j].PhysDiskBus)) {
2177                                 rc = 1;
2178                                 kfree(phys_disk);
2179                                 goto out;
2180                         }
2181                 }
2182                 kfree(phys_disk);
2183         }
2184
2185
2186         /*
2187          * Check inactive list for matching phys disks
2188          */
2189         if (list_empty(&ioc->raid_data.inactive_list))
2190                 goto out;
2191
2192         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2193         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2194             list) {
2195                 if ((component_info->d.PhysDiskID == id) &&
2196                     (component_info->d.PhysDiskBus == channel))
2197                         rc = 1;
2198         }
2199         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2200
2201  out:
2202         return rc;
2203 }
2204 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2205
2206 u8
2207 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2208 {
2209         struct inactive_raid_component_info *component_info;
2210         int i, j;
2211         RaidPhysDiskPage1_t *phys_disk;
2212         int rc = -ENXIO;
2213         int num_paths;
2214
2215         if (!ioc->raid_data.pIocPg3)
2216                 goto out;
2217         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2218                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2219                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2220                         rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2221                         goto out;
2222                 }
2223         }
2224
2225         if (ioc->bus_type != SAS)
2226                 goto out;
2227
2228         /*
2229          * Check if dual path
2230          */
2231         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2232                 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2233                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2234                 if (num_paths < 2)
2235                         continue;
2236                 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2237                    (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2238                 if (!phys_disk)
2239                         continue;
2240                 if ((mpt_raid_phys_disk_pg1(ioc,
2241                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2242                     phys_disk))) {
2243                         kfree(phys_disk);
2244                         continue;
2245                 }
2246                 for (j = 0; j < num_paths; j++) {
2247                         if ((phys_disk->Path[j].Flags &
2248                             MPI_RAID_PHYSDISK1_FLAG_INVALID))
2249                                 continue;
2250                         if ((phys_disk->Path[j].Flags &
2251                             MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2252                                 continue;
2253                         if ((id == phys_disk->Path[j].PhysDiskID) &&
2254                             (channel == phys_disk->Path[j].PhysDiskBus)) {
2255                                 rc = phys_disk->PhysDiskNum;
2256                                 kfree(phys_disk);
2257                                 goto out;
2258                         }
2259                 }
2260                 kfree(phys_disk);
2261         }
2262
2263         /*
2264          * Check inactive list for matching phys disks
2265          */
2266         if (list_empty(&ioc->raid_data.inactive_list))
2267                 goto out;
2268
2269         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2270         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2271             list) {
2272                 if ((component_info->d.PhysDiskID == id) &&
2273                     (component_info->d.PhysDiskBus == channel))
2274                         rc = component_info->d.PhysDiskNum;
2275         }
2276         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2277
2278  out:
2279         return rc;
2280 }
2281 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2282
2283 /*
2284  *      OS entry point to allow for host driver to free allocated memory
2285  *      Called if no device present or device being unloaded
2286  */
2287 void
2288 mptscsih_slave_destroy(struct scsi_device *sdev)
2289 {
2290         struct Scsi_Host        *host = sdev->host;
2291         MPT_SCSI_HOST           *hd = shost_priv(host);
2292         VirtTarget              *vtarget;
2293         VirtDevice              *vdevice;
2294         struct scsi_target      *starget;
2295
2296         starget = scsi_target(sdev);
2297         vtarget = starget->hostdata;
2298         vdevice = sdev->hostdata;
2299         if (!vdevice)
2300                 return;
2301
2302         mptscsih_search_running_cmds(hd, vdevice);
2303         vtarget->num_luns--;
2304         mptscsih_synchronize_cache(hd, vdevice);
2305         kfree(vdevice);
2306         sdev->hostdata = NULL;
2307 }
2308
2309 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2310 /*
2311  *      mptscsih_change_queue_depth - This function will set a devices queue depth
2312  *      @sdev: per scsi_device pointer
2313  *      @qdepth: requested queue depth
2314  *
2315  *      Adding support for new 'change_queue_depth' api.
2316 */
2317 int
2318 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
2319 {
2320         MPT_SCSI_HOST           *hd = shost_priv(sdev->host);
2321         VirtTarget              *vtarget;
2322         struct scsi_target      *starget;
2323         int                     max_depth;
2324         MPT_ADAPTER             *ioc = hd->ioc;
2325
2326         starget = scsi_target(sdev);
2327         vtarget = starget->hostdata;
2328
2329         if (ioc->bus_type == SPI) {
2330                 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2331                         max_depth = 1;
2332                 else if (sdev->type == TYPE_DISK &&
2333                          vtarget->minSyncFactor <= MPT_ULTRA160)
2334                         max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2335                 else
2336                         max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2337         } else
2338                  max_depth = ioc->sh->can_queue;
2339
2340         if (!sdev->tagged_supported)
2341                 max_depth = 1;
2342
2343         if (qdepth > max_depth)
2344                 qdepth = max_depth;
2345
2346         return scsi_change_queue_depth(sdev, qdepth);
2347 }
2348
2349 /*
2350  *      OS entry point to adjust the queue_depths on a per-device basis.
2351  *      Called once per device the bus scan. Use it to force the queue_depth
2352  *      member to 1 if a device does not support Q tags.
2353  *      Return non-zero if fails.
2354  */
2355 int
2356 mptscsih_slave_configure(struct scsi_device *sdev)
2357 {
2358         struct Scsi_Host        *sh = sdev->host;
2359         VirtTarget              *vtarget;
2360         VirtDevice              *vdevice;
2361         struct scsi_target      *starget;
2362         MPT_SCSI_HOST           *hd = shost_priv(sh);
2363         MPT_ADAPTER             *ioc = hd->ioc;
2364
2365         starget = scsi_target(sdev);
2366         vtarget = starget->hostdata;
2367         vdevice = sdev->hostdata;
2368
2369         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2370                 "device @ %p, channel=%d, id=%d, lun=%llu\n",
2371                 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2372         if (ioc->bus_type == SPI)
2373                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2374                     "sdtr %d wdtr %d ppr %d inq length=%d\n",
2375                     ioc->name, sdev->sdtr, sdev->wdtr,
2376                     sdev->ppr, sdev->inquiry_len));
2377
2378         vdevice->configured_lun = 1;
2379
2380         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2381                 "Queue depth=%d, tflags=%x\n",
2382                 ioc->name, sdev->queue_depth, vtarget->tflags));
2383
2384         if (ioc->bus_type == SPI)
2385                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2386                     "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2387                     ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2388                     vtarget->minSyncFactor));
2389
2390         mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
2391         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2392                 "tagged %d, simple %d\n",
2393                 ioc->name,sdev->tagged_supported, sdev->simple_tags));
2394
2395         blk_queue_dma_alignment (sdev->request_queue, 512 - 1);
2396
2397         return 0;
2398 }
2399
2400 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2401 /*
2402  *  Private routines...
2403  */
2404
2405 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2406 /* Utility function to copy sense data from the scsi_cmnd buffer
2407  * to the FC and SCSI target structures.
2408  *
2409  */
2410 static void
2411 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2412 {
2413         VirtDevice      *vdevice;
2414         SCSIIORequest_t *pReq;
2415         u32              sense_count = le32_to_cpu(pScsiReply->SenseCount);
2416         MPT_ADAPTER     *ioc = hd->ioc;
2417
2418         /* Get target structure
2419          */
2420         pReq = (SCSIIORequest_t *) mf;
2421         vdevice = sc->device->hostdata;
2422
2423         if (sense_count) {
2424                 u8 *sense_data;
2425                 int req_index;
2426
2427                 /* Copy the sense received into the scsi command block. */
2428                 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2429                 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2430                 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2431
2432                 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2433                  */
2434                 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2435                         if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2436                                 int idx;
2437
2438                                 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2439                                 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2440                                 ioc->events[idx].eventContext = ioc->eventContext;
2441
2442                                 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2443                                         (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2444                                         (sc->device->channel << 8) | sc->device->id;
2445
2446                                 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2447
2448                                 ioc->eventContext++;
2449                                 if (ioc->pcidev->vendor ==
2450                                     PCI_VENDOR_ID_IBM) {
2451                                         mptscsih_issue_sep_command(ioc,
2452                                             vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2453                                         vdevice->vtarget->tflags |=
2454                                             MPT_TARGET_FLAGS_LED_ON;
2455                                 }
2456                         }
2457                 }
2458         } else {
2459                 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2460                                 ioc->name));
2461         }
2462 }
2463
2464 /**
2465  * mptscsih_get_scsi_lookup - retrieves scmd entry
2466  * @ioc: Pointer to MPT_ADAPTER structure
2467  * @i: index into the array
2468  *
2469  * Returns the scsi_cmd pointer
2470  */
2471 struct scsi_cmnd *
2472 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2473 {
2474         unsigned long   flags;
2475         struct scsi_cmnd *scmd;
2476
2477         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2478         scmd = ioc->ScsiLookup[i];
2479         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2480
2481         return scmd;
2482 }
2483 EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
2484
2485 /**
2486  * mptscsih_getclear_scsi_lookup -  retrieves and clears scmd entry from ScsiLookup[] array list
2487  * @ioc: Pointer to MPT_ADAPTER structure
2488  * @i: index into the array
2489  *
2490  * Returns the scsi_cmd pointer
2491  *
2492  **/
2493 static struct scsi_cmnd *
2494 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2495 {
2496         unsigned long   flags;
2497         struct scsi_cmnd *scmd;
2498
2499         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2500         scmd = ioc->ScsiLookup[i];
2501         ioc->ScsiLookup[i] = NULL;
2502         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2503
2504         return scmd;
2505 }
2506
2507 /**
2508  * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list
2509  *
2510  * @ioc: Pointer to MPT_ADAPTER structure
2511  * @i: index into the array
2512  * @scmd: scsi_cmnd pointer
2513  *
2514  **/
2515 static void
2516 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2517 {
2518         unsigned long   flags;
2519
2520         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2521         ioc->ScsiLookup[i] = scmd;
2522         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2523 }
2524
2525 /**
2526  * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2527  * @ioc: Pointer to MPT_ADAPTER structure
2528  * @sc: scsi_cmnd pointer
2529  */
2530 static int
2531 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2532 {
2533         unsigned long   flags;
2534         int i, index=-1;
2535
2536         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2537         for (i = 0; i < ioc->req_depth; i++) {
2538                 if (ioc->ScsiLookup[i] == sc) {
2539                         index = i;
2540                         goto out;
2541                 }
2542         }
2543
2544  out:
2545         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2546         return index;
2547 }
2548
2549 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2550 int
2551 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2552 {
2553         MPT_SCSI_HOST   *hd;
2554
2555         if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2556                 return 0;
2557
2558         hd = shost_priv(ioc->sh);
2559         switch (reset_phase) {
2560         case MPT_IOC_SETUP_RESET:
2561                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2562                     "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
2563                 break;
2564         case MPT_IOC_PRE_RESET:
2565                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2566                     "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
2567                 mptscsih_flush_running_cmds(hd);
2568                 break;
2569         case MPT_IOC_POST_RESET:
2570                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2571                     "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
2572                 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) {
2573                         ioc->internal_cmds.status |=
2574                                 MPT_MGMT_STATUS_DID_IOCRESET;
2575                         complete(&ioc->internal_cmds.done);
2576                 }
2577                 break;
2578         default:
2579                 break;
2580         }
2581         return 1;               /* currently means nothing really */
2582 }
2583
2584 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2585 int
2586 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2587 {
2588         u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2589
2590         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2591                 "MPT event (=%02Xh) routed to SCSI host driver!\n",
2592                 ioc->name, event));
2593
2594         if ((event == MPI_EVENT_IOC_BUS_RESET ||
2595             event == MPI_EVENT_EXT_BUS_RESET) &&
2596             (ioc->bus_type == SPI) && (ioc->soft_resets < -1))
2597                         ioc->soft_resets++;
2598
2599         return 1;               /* currently means nothing really */
2600 }
2601
2602 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2603 /*
2604  *  Bus Scan and Domain Validation functionality ...
2605  */
2606
2607 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2608 /*
2609  *      mptscsih_scandv_complete - Scan and DV callback routine registered
2610  *      to Fustion MPT (base) driver.
2611  *
2612  *      @ioc: Pointer to MPT_ADAPTER structure
2613  *      @mf: Pointer to original MPT request frame
2614  *      @mr: Pointer to MPT reply frame (NULL if TurboReply)
2615  *
2616  *      This routine is called from mpt.c::mpt_interrupt() at the completion
2617  *      of any SCSI IO request.
2618  *      This routine is registered with the Fusion MPT (base) driver at driver
2619  *      load/init time via the mpt_register() API call.
2620  *
2621  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2622  *
2623  *      Remark: Sets a completion code and (possibly) saves sense data
2624  *      in the IOC member localReply structure.
2625  *      Used ONLY for DV and other internal commands.
2626  */
2627 int
2628 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2629                                 MPT_FRAME_HDR *reply)
2630 {
2631         SCSIIORequest_t *pReq;
2632         SCSIIOReply_t   *pReply;
2633         u8               cmd;
2634         u16              req_idx;
2635         u8      *sense_data;
2636         int              sz;
2637
2638         ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2639         ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD;
2640         if (!reply)
2641                 goto out;
2642
2643         pReply = (SCSIIOReply_t *) reply;
2644         pReq = (SCSIIORequest_t *) req;
2645         ioc->internal_cmds.completion_code =
2646             mptscsih_get_completion_code(ioc, req, reply);
2647         ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2648         memcpy(ioc->internal_cmds.reply, reply,
2649             min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength));
2650         cmd = reply->u.hdr.Function;
2651         if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
2652             (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) &&
2653             (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
2654                 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
2655                 sense_data = ((u8 *)ioc->sense_buf_pool +
2656                     (req_idx * MPT_SENSE_BUFFER_ALLOC));
2657                 sz = min_t(int, pReq->SenseBufferLength,
2658                     MPT_SENSE_BUFFER_ALLOC);
2659                 memcpy(ioc->internal_cmds.sense, sense_data, sz);
2660         }
2661  out:
2662         if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING))
2663                 return 0;
2664         ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2665         complete(&ioc->internal_cmds.done);
2666         return 1;
2667 }
2668
2669
2670 /**
2671  *      mptscsih_get_completion_code - get completion code from MPT request
2672  *      @ioc: Pointer to MPT_ADAPTER structure
2673  *      @req: Pointer to original MPT request frame
2674  *      @reply: Pointer to MPT reply frame (NULL if TurboReply)
2675  *
2676  **/
2677 static int
2678 mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2679                                 MPT_FRAME_HDR *reply)
2680 {
2681         SCSIIOReply_t   *pReply;
2682         MpiRaidActionReply_t *pr;
2683         u8               scsi_status;
2684         u16              status;
2685         int              completion_code;
2686
2687         pReply = (SCSIIOReply_t *)reply;
2688         status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2689         scsi_status = pReply->SCSIStatus;
2690
2691         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2692             "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh,"
2693             "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState,
2694             scsi_status, le32_to_cpu(pReply->IOCLogInfo)));
2695
2696         switch (status) {
2697
2698         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
2699                 completion_code = MPT_SCANDV_SELECTION_TIMEOUT;
2700                 break;
2701
2702         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
2703         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
2704         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
2705         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
2706                 completion_code = MPT_SCANDV_DID_RESET;
2707                 break;
2708
2709         case MPI_IOCSTATUS_BUSY:
2710         case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
2711                 completion_code = MPT_SCANDV_BUSY;
2712                 break;
2713
2714         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
2715         case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
2716         case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
2717                 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2718                         completion_code = MPT_SCANDV_GOOD;
2719                 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2720                         pr = (MpiRaidActionReply_t *)reply;
2721                         if (le16_to_cpu(pr->ActionStatus) ==
2722                                 MPI_RAID_ACTION_ASTATUS_SUCCESS)
2723                                 completion_code = MPT_SCANDV_GOOD;
2724                         else
2725                                 completion_code = MPT_SCANDV_SOME_ERROR;
2726                 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)
2727                         completion_code = MPT_SCANDV_SENSE;
2728                 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2729                         if (req->u.scsireq.CDB[0] == INQUIRY)
2730                                 completion_code = MPT_SCANDV_ISSUE_SENSE;
2731                         else
2732                                 completion_code = MPT_SCANDV_DID_RESET;
2733                 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2734                         completion_code = MPT_SCANDV_DID_RESET;
2735                 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2736                         completion_code = MPT_SCANDV_DID_RESET;
2737                 else if (scsi_status == MPI_SCSI_STATUS_BUSY)
2738                         completion_code = MPT_SCANDV_BUSY;
2739                 else
2740                         completion_code = MPT_SCANDV_GOOD;
2741                 break;
2742
2743         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
2744                 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2745                         completion_code = MPT_SCANDV_DID_RESET;
2746                 else
2747                         completion_code = MPT_SCANDV_SOME_ERROR;
2748                 break;
2749         default:
2750                 completion_code = MPT_SCANDV_SOME_ERROR;
2751                 break;
2752
2753         }       /* switch(status) */
2754
2755         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2756             "  completionCode set to %08xh\n", ioc->name, completion_code));
2757         return completion_code;
2758 }
2759
2760 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2761 /**
2762  *      mptscsih_do_cmd - Do internal command.
2763  *      @hd: MPT_SCSI_HOST pointer
2764  *      @io: INTERNAL_CMD pointer.
2765  *
2766  *      Issue the specified internally generated command and do command
2767  *      specific cleanup. For bus scan / DV only.
2768  *      NOTES: If command is Inquiry and status is good,
2769  *      initialize a target structure, save the data
2770  *
2771  *      Remark: Single threaded access only.
2772  *
2773  *      Return:
2774  *              < 0 if an illegal command or no resources
2775  *
2776  *                 0 if good
2777  *
2778  *               > 0 if command complete but some type of completion error.
2779  */
2780 static int
2781 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2782 {
2783         MPT_FRAME_HDR   *mf;
2784         SCSIIORequest_t *pScsiReq;
2785         int              my_idx, ii, dir;
2786         int              timeout;
2787         char             cmdLen;
2788         char             CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2789         u8               cmd = io->cmd;
2790         MPT_ADAPTER *ioc = hd->ioc;
2791         int              ret = 0;
2792         unsigned long    timeleft;
2793         unsigned long    flags;
2794
2795         /* don't send internal command during diag reset */
2796         spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
2797         if (ioc->ioc_reset_in_progress) {
2798                 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2799                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2800                         "%s: busy with host reset\n", ioc->name, __func__));
2801                 return MPT_SCANDV_BUSY;
2802         }
2803         spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2804
2805         mutex_lock(&ioc->internal_cmds.mutex);
2806
2807         /* Set command specific information
2808          */
2809         switch (cmd) {
2810         case INQUIRY:
2811                 cmdLen = 6;
2812                 dir = MPI_SCSIIO_CONTROL_READ;
2813                 CDB[0] = cmd;
2814                 CDB[4] = io->size;
2815                 timeout = 10;
2816                 break;
2817
2818         case TEST_UNIT_READY:
2819                 cmdLen = 6;
2820                 dir = MPI_SCSIIO_CONTROL_READ;
2821                 timeout = 10;
2822                 break;
2823
2824         case START_STOP:
2825                 cmdLen = 6;
2826                 dir = MPI_SCSIIO_CONTROL_READ;
2827                 CDB[0] = cmd;
2828                 CDB[4] = 1;     /*Spin up the disk */
2829                 timeout = 15;
2830                 break;
2831
2832         case REQUEST_SENSE:
2833                 cmdLen = 6;
2834                 CDB[0] = cmd;
2835                 CDB[4] = io->size;
2836                 dir = MPI_SCSIIO_CONTROL_READ;
2837                 timeout = 10;
2838                 break;
2839
2840         case READ_BUFFER:
2841                 cmdLen = 10;
2842                 dir = MPI_SCSIIO_CONTROL_READ;
2843                 CDB[0] = cmd;
2844                 if (io->flags & MPT_ICFLAG_ECHO) {
2845                         CDB[1] = 0x0A;
2846                 } else {
2847                         CDB[1] = 0x02;
2848                 }
2849
2850                 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2851                         CDB[1] |= 0x01;
2852                 }
2853                 CDB[6] = (io->size >> 16) & 0xFF;
2854                 CDB[7] = (io->size >>  8) & 0xFF;
2855                 CDB[8] = io->size & 0xFF;
2856                 timeout = 10;
2857                 break;
2858
2859         case WRITE_BUFFER:
2860                 cmdLen = 10;
2861                 dir = MPI_SCSIIO_CONTROL_WRITE;
2862                 CDB[0] = cmd;
2863                 if (io->flags & MPT_ICFLAG_ECHO) {
2864                         CDB[1] = 0x0A;
2865                 } else {
2866                         CDB[1] = 0x02;
2867                 }
2868                 CDB[6] = (io->size >> 16) & 0xFF;
2869                 CDB[7] = (io->size >>  8) & 0xFF;
2870                 CDB[8] = io->size & 0xFF;
2871                 timeout = 10;
2872                 break;
2873
2874         case RESERVE:
2875                 cmdLen = 6;
2876                 dir = MPI_SCSIIO_CONTROL_READ;
2877                 CDB[0] = cmd;
2878                 timeout = 10;
2879                 break;
2880
2881         case RELEASE:
2882                 cmdLen = 6;
2883                 dir = MPI_SCSIIO_CONTROL_READ;
2884                 CDB[0] = cmd;
2885                 timeout = 10;
2886                 break;
2887
2888         case SYNCHRONIZE_CACHE:
2889                 cmdLen = 10;
2890                 dir = MPI_SCSIIO_CONTROL_READ;
2891                 CDB[0] = cmd;
2892 //              CDB[1] = 0x02;  /* set immediate bit */
2893                 timeout = 10;
2894                 break;
2895
2896         default:
2897                 /* Error Case */
2898                 ret = -EFAULT;
2899                 goto out;
2900         }
2901
2902         /* Get and Populate a free Frame
2903          * MsgContext set in mpt_get_msg_frame call
2904          */
2905         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
2906                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n",
2907                     ioc->name, __func__));
2908                 ret = MPT_SCANDV_BUSY;
2909                 goto out;
2910         }
2911
2912         pScsiReq = (SCSIIORequest_t *) mf;
2913
2914         /* Get the request index */
2915         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2916         ADD_INDEX_LOG(my_idx); /* for debug */
2917
2918         if (io->flags & MPT_ICFLAG_PHYS_DISK) {
2919                 pScsiReq->TargetID = io->physDiskNum;
2920                 pScsiReq->Bus = 0;
2921                 pScsiReq->ChainOffset = 0;
2922                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2923         } else {
2924                 pScsiReq->TargetID = io->id;
2925                 pScsiReq->Bus = io->channel;
2926                 pScsiReq->ChainOffset = 0;
2927                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2928         }
2929
2930         pScsiReq->CDBLength = cmdLen;
2931         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
2932
2933         pScsiReq->Reserved = 0;
2934
2935         pScsiReq->MsgFlags = mpt_msg_flags(ioc);
2936         /* MsgContext set in mpt_get_msg_fram call  */
2937
2938         int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
2939
2940         if (io->flags & MPT_ICFLAG_TAGGED_CMD)
2941                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
2942         else
2943                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2944
2945         if (cmd == REQUEST_SENSE) {
2946                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2947                 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2948                     "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd));
2949         }
2950
2951         for (ii = 0; ii < 16; ii++)
2952                 pScsiReq->CDB[ii] = CDB[ii];
2953
2954         pScsiReq->DataLength = cpu_to_le32(io->size);
2955         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
2956                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
2957
2958         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2959             "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%llu\n",
2960             ioc->name, __func__, cmd, io->channel, io->id, io->lun));
2961
2962         if (dir == MPI_SCSIIO_CONTROL_READ)
2963                 ioc->add_sge((char *) &pScsiReq->SGL,
2964                     MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma);
2965         else
2966                 ioc->add_sge((char *) &pScsiReq->SGL,
2967                     MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma);
2968
2969         INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
2970         mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
2971         timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done,
2972             timeout*HZ);
2973         if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2974                 ret = MPT_SCANDV_DID_RESET;
2975                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2976                     "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__,
2977                     cmd));
2978                 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2979                         mpt_free_msg_frame(ioc, mf);
2980                         goto out;
2981                 }
2982                 if (!timeleft) {
2983                         printk(MYIOC_s_WARN_FMT
2984                                "Issuing Reset from %s!! doorbell=0x%08xh"
2985                                " cmd=0x%02x\n",
2986                                ioc->name, __func__, mpt_GetIocState(ioc, 0),
2987                                cmd);
2988                         mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
2989                         mpt_free_msg_frame(ioc, mf);
2990                 }
2991                 goto out;
2992         }
2993
2994         ret = ioc->internal_cmds.completion_code;
2995         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n",
2996                         ioc->name, __func__, ret));
2997
2998  out:
2999         CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
3000         mutex_unlock(&ioc->internal_cmds.mutex);
3001         return ret;
3002 }
3003
3004 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3005 /**
3006  *      mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3007  *      @hd: Pointer to a SCSI HOST structure
3008  *      @vdevice: virtual target device
3009  *
3010  *      Uses the ISR, but with special processing.
3011  *      MUST be single-threaded.
3012  *
3013  */
3014 static void
3015 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3016 {
3017         INTERNAL_CMD             iocmd;
3018
3019         /* Ignore hidden raid components, this is handled when the command
3020          * is sent to the volume
3021          */
3022         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3023                 return;
3024
3025         if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3026             !vdevice->configured_lun)
3027                 return;
3028
3029         /* Following parameters will not change
3030          * in this routine.
3031          */
3032         iocmd.cmd = SYNCHRONIZE_CACHE;
3033         iocmd.flags = 0;
3034         iocmd.physDiskNum = -1;
3035         iocmd.data = NULL;
3036         iocmd.data_dma = -1;
3037         iocmd.size = 0;
3038         iocmd.rsvd = iocmd.rsvd2 = 0;
3039         iocmd.channel = vdevice->vtarget->channel;
3040         iocmd.id = vdevice->vtarget->id;
3041         iocmd.lun = vdevice->lun;
3042
3043         mptscsih_do_cmd(hd, &iocmd);
3044 }
3045
3046 static ssize_t
3047 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3048                          char *buf)
3049 {
3050         struct Scsi_Host *host = class_to_shost(dev);
3051         MPT_SCSI_HOST   *hd = shost_priv(host);
3052         MPT_ADAPTER *ioc = hd->ioc;
3053
3054         return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3055             (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3056             (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3057             (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3058             ioc->facts.FWVersion.Word & 0x000000FF);
3059 }
3060 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3061
3062 static ssize_t
3063 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3064                            char *buf)
3065 {
3066         struct Scsi_Host *host = class_to_shost(dev);
3067         MPT_SCSI_HOST   *hd = shost_priv(host);
3068         MPT_ADAPTER *ioc = hd->ioc;
3069
3070         return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3071             (ioc->biosVersion & 0xFF000000) >> 24,
3072             (ioc->biosVersion & 0x00FF0000) >> 16,
3073             (ioc->biosVersion & 0x0000FF00) >> 8,
3074             ioc->biosVersion & 0x000000FF);
3075 }
3076 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3077
3078 static ssize_t
3079 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3080                           char *buf)
3081 {
3082         struct Scsi_Host *host = class_to_shost(dev);
3083         MPT_SCSI_HOST   *hd = shost_priv(host);
3084         MPT_ADAPTER *ioc = hd->ioc;
3085
3086         return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3087 }
3088 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3089
3090 static ssize_t
3091 mptscsih_version_product_show(struct device *dev,
3092                               struct device_attribute *attr,
3093 char *buf)
3094 {
3095         struct Scsi_Host *host = class_to_shost(dev);
3096         MPT_SCSI_HOST   *hd = shost_priv(host);
3097         MPT_ADAPTER *ioc = hd->ioc;
3098
3099         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3100 }
3101 static DEVICE_ATTR(version_product, S_IRUGO,
3102     mptscsih_version_product_show, NULL);
3103
3104 static ssize_t
3105 mptscsih_version_nvdata_persistent_show(struct device *dev,
3106                                         struct device_attribute *attr,
3107                                         char *buf)
3108 {
3109         struct Scsi_Host *host = class_to_shost(dev);
3110         MPT_SCSI_HOST   *hd = shost_priv(host);
3111         MPT_ADAPTER *ioc = hd->ioc;
3112
3113         return snprintf(buf, PAGE_SIZE, "%02xh\n",
3114             ioc->nvdata_version_persistent);
3115 }
3116 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3117     mptscsih_version_nvdata_persistent_show, NULL);
3118
3119 static ssize_t
3120 mptscsih_version_nvdata_default_show(struct device *dev,
3121                                      struct device_attribute *attr, char *buf)
3122 {
3123         struct Scsi_Host *host = class_to_shost(dev);
3124         MPT_SCSI_HOST   *hd = shost_priv(host);
3125         MPT_ADAPTER *ioc = hd->ioc;
3126
3127         return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3128 }
3129 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3130     mptscsih_version_nvdata_default_show, NULL);
3131
3132 static ssize_t
3133 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3134                          char *buf)
3135 {
3136         struct Scsi_Host *host = class_to_shost(dev);
3137         MPT_SCSI_HOST   *hd = shost_priv(host);
3138         MPT_ADAPTER *ioc = hd->ioc;
3139
3140         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3141 }
3142 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3143
3144 static ssize_t
3145 mptscsih_board_assembly_show(struct device *dev,
3146                              struct device_attribute *attr, char *buf)
3147 {
3148         struct Scsi_Host *host = class_to_shost(dev);
3149         MPT_SCSI_HOST   *hd = shost_priv(host);
3150         MPT_ADAPTER *ioc = hd->ioc;
3151
3152         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3153 }
3154 static DEVICE_ATTR(board_assembly, S_IRUGO,
3155     mptscsih_board_assembly_show, NULL);
3156
3157 static ssize_t
3158 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3159                            char *buf)
3160 {
3161         struct Scsi_Host *host = class_to_shost(dev);
3162         MPT_SCSI_HOST   *hd = shost_priv(host);
3163         MPT_ADAPTER *ioc = hd->ioc;
3164
3165         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3166 }
3167 static DEVICE_ATTR(board_tracer, S_IRUGO,
3168     mptscsih_board_tracer_show, NULL);
3169
3170 static ssize_t
3171 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3172                        char *buf)
3173 {
3174         struct Scsi_Host *host = class_to_shost(dev);
3175         MPT_SCSI_HOST   *hd = shost_priv(host);
3176         MPT_ADAPTER *ioc = hd->ioc;
3177
3178         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3179 }
3180 static DEVICE_ATTR(io_delay, S_IRUGO,
3181     mptscsih_io_delay_show, NULL);
3182
3183 static ssize_t
3184 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3185                            char *buf)
3186 {
3187         struct Scsi_Host *host = class_to_shost(dev);
3188         MPT_SCSI_HOST   *hd = shost_priv(host);
3189         MPT_ADAPTER *ioc = hd->ioc;
3190
3191         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3192 }
3193 static DEVICE_ATTR(device_delay, S_IRUGO,
3194     mptscsih_device_delay_show, NULL);
3195
3196 static ssize_t
3197 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3198                           char *buf)
3199 {
3200         struct Scsi_Host *host = class_to_shost(dev);
3201         MPT_SCSI_HOST   *hd = shost_priv(host);
3202         MPT_ADAPTER *ioc = hd->ioc;
3203
3204         return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3205 }
3206 static ssize_t
3207 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3208                            const char *buf, size_t count)
3209 {
3210         struct Scsi_Host *host = class_to_shost(dev);
3211         MPT_SCSI_HOST   *hd = shost_priv(host);
3212         MPT_ADAPTER *ioc = hd->ioc;
3213         int val = 0;
3214
3215         if (sscanf(buf, "%x", &val) != 1)
3216                 return -EINVAL;
3217
3218         ioc->debug_level = val;
3219         printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3220                                 ioc->name, ioc->debug_level);
3221         return strlen(buf);
3222 }
3223 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3224         mptscsih_debug_level_show, mptscsih_debug_level_store);
3225
3226 struct device_attribute *mptscsih_host_attrs[] = {
3227         &dev_attr_version_fw,
3228         &dev_attr_version_bios,
3229         &dev_attr_version_mpi,
3230         &dev_attr_version_product,
3231         &dev_attr_version_nvdata_persistent,
3232         &dev_attr_version_nvdata_default,
3233         &dev_attr_board_name,
3234         &dev_attr_board_assembly,
3235         &dev_attr_board_tracer,
3236         &dev_attr_io_delay,
3237         &dev_attr_device_delay,
3238         &dev_attr_debug_level,
3239         NULL,
3240 };
3241
3242 EXPORT_SYMBOL(mptscsih_host_attrs);
3243
3244 EXPORT_SYMBOL(mptscsih_remove);
3245 EXPORT_SYMBOL(mptscsih_shutdown);
3246 #ifdef CONFIG_PM
3247 EXPORT_SYMBOL(mptscsih_suspend);
3248 EXPORT_SYMBOL(mptscsih_resume);
3249 #endif
3250 EXPORT_SYMBOL(mptscsih_show_info);
3251 EXPORT_SYMBOL(mptscsih_info);
3252 EXPORT_SYMBOL(mptscsih_qcmd);
3253 EXPORT_SYMBOL(mptscsih_slave_destroy);
3254 EXPORT_SYMBOL(mptscsih_slave_configure);
3255 EXPORT_SYMBOL(mptscsih_abort);
3256 EXPORT_SYMBOL(mptscsih_dev_reset);
3257 EXPORT_SYMBOL(mptscsih_bus_reset);
3258 EXPORT_SYMBOL(mptscsih_host_reset);
3259 EXPORT_SYMBOL(mptscsih_bios_param);
3260 EXPORT_SYMBOL(mptscsih_io_done);
3261 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3262 EXPORT_SYMBOL(mptscsih_scandv_complete);
3263 EXPORT_SYMBOL(mptscsih_event_process);
3264 EXPORT_SYMBOL(mptscsih_ioc_reset);
3265 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3266
3267 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/