drivers/message/fusion/mptscsih.c

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