drivers/message/fusion/mptscsih.c

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