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