drivers/message/fusion/mptscsih.c

   1 /*
   2  *  linux/drivers/message/fusion/mptscsih.c
   3  *      For use with LSI PCI chip/adapter(s)
   4  *      running LSI Fusion MPT (Message Passing Technology) firmware.
   5  *
   6  *  Copyright (c) 1999-2008 LSI Corporation
   7  *  (mailto:DL-MPTFusionLinux@lsi.com)
   8  *
   9  */
  10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  11 /*
  12     This program is free software; you can redistribute it and/or modify
  13     it under the terms of the GNU General Public License as published by
  14     the Free Software Foundation; version 2 of the License.
  15
  16     This program is distributed in the hope that it will be useful,
  17     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19     GNU General Public License for more details.
  20
  21     NO WARRANTY
  22     THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
  23     CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
  24     LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
  25     MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
  26     solely responsible for determining the appropriateness of using and
  27     distributing the Program and assumes all risks associated with its
  28     exercise of rights under this Agreement, including but not limited to
  29     the risks and costs of program errors, damage to or loss of data,
  30     programs or equipment, and unavailability or interruption of operations.
  31
  32     DISCLAIMER OF LIABILITY
  33     NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
  34     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35     DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
  36     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  37     TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  38     USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
  39     HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
  40
  41     You should have received a copy of the GNU General Public License
  42     along with this program; if not, write to the Free Software
  43     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  44 */
  45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  46
  47 #include <linux/module.h>
  48 #include <linux/kernel.h>
  49 #include <linux/slab.h>
  50 #include <linux/init.h>
  51 #include <linux/errno.h>
  52 #include <linux/kdev_t.h>
  53 #include <linux/blkdev.h>
  54 #include <linux/delay.h>        /* for mdelay */
  55 #include <linux/interrupt.h>    /* needed for in_interrupt() proto */
  56 #include <linux/reboot.h>       /* notifier code */
  57 #include <linux/workqueue.h>
  58
  59 #include <scsi/scsi.h>
  60 #include <scsi/scsi_cmnd.h>
  61 #include <scsi/scsi_device.h>
  62 #include <scsi/scsi_host.h>
  63 #include <scsi/scsi_tcq.h>
  64 #include <scsi/scsi_dbg.h>
  65
  66 #include "mptbase.h"
  67 #include "mptscsih.h"
  68 #include "lsi/mpi_log_sas.h"
  69
  70 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  71 #define my_NAME         "Fusion MPT SCSI Host driver"
  72 #define my_VERSION      MPT_LINUX_VERSION_COMMON
  73 #define MYNAM           "mptscsih"
  74
  75 MODULE_AUTHOR(MODULEAUTHOR);
  76 MODULE_DESCRIPTION(my_NAME);
  77 MODULE_LICENSE("GPL");
  78 MODULE_VERSION(my_VERSION);
  79
  80 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  81 /*
  82  *  Other private/forward protos...
  83  */
  84 struct scsi_cmnd        *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
  85 static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i);
  86 static void     mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd);
  87 static int      SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd);
  88 int             mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
  89 static void     mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
  90 int             mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
  91
  92 static int      mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
  93                                  SCSIIORequest_t *pReq, int req_idx);
  94 static void     mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
  95 static void     mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
  96
  97 int     mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id,
  98                 u64 lun, int ctx2abort, ulong timeout);
  99
 100 int             mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
 101 int             mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
 102
 103 void
 104 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code);
 105 static int      mptscsih_get_completion_code(MPT_ADAPTER *ioc,
 106                 MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply);
 107 int             mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
 108 static int      mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
 109 static void     mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
 110
 111 static int
 112 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
 113                                 SCSITaskMgmtReply_t *pScsiTmReply);
 114 void            mptscsih_remove(struct pci_dev *);
 115 void            mptscsih_shutdown(struct pci_dev *);
 116 #ifdef CONFIG_PM
 117 int             mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
 118 int             mptscsih_resume(struct pci_dev *pdev);
 119 #endif
 120
 121
 122 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 123 /*
 124  *      mptscsih_getFreeChainBuffer - Function to get a free chain
 125  *      from the MPT_SCSI_HOST FreeChainQ.
 126  *      @ioc: Pointer to MPT_ADAPTER structure
 127  *      @req_idx: Index of the SCSI IO request frame. (output)
 128  *
 129  *      return SUCCESS or FAILED
 130  */
 131 static inline int
 132 mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
 133 {
 134         MPT_FRAME_HDR *chainBuf;
 135         unsigned long flags;
 136         int rc;
 137         int chain_idx;
 138
 139         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n",
 140             ioc->name));
 141         spin_lock_irqsave(&ioc->FreeQlock, flags);
 142         if (!list_empty(&ioc->FreeChainQ)) {
 143                 int offset;
 144
 145                 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR,
 146                                 u.frame.linkage.list);
 147                 list_del(&chainBuf->u.frame.linkage.list);
 148                 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer;
 149                 chain_idx = offset / ioc->req_sz;
 150                 rc = SUCCESS;
 151                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 152                     "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n",
 153                     ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx));
 154         } else {
 155                 rc = FAILED;
 156                 chain_idx = MPT_HOST_NO_CHAIN;
 157                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n",
 158                     ioc->name));
 159         }
 160         spin_unlock_irqrestore(&ioc->FreeQlock, flags);
 161
 162         *retIndex = chain_idx;
 163         return rc;
 164 } /* mptscsih_getFreeChainBuffer() */
 165
 166 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 167 /*
 168  *      mptscsih_AddSGE - Add a SGE (plus chain buffers) to the
 169  *      SCSIIORequest_t Message Frame.
 170  *      @ioc: Pointer to MPT_ADAPTER structure
 171  *      @SCpnt: Pointer to scsi_cmnd structure
 172  *      @pReq: Pointer to SCSIIORequest_t structure
 173  *
 174  *      Returns ...
 175  */
 176 static int
 177 mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
 178                 SCSIIORequest_t *pReq, int req_idx)
 179 {
 180         char    *psge;
 181         char    *chainSge;
 182         struct scatterlist *sg;
 183         int      frm_sz;
 184         int      sges_left, sg_done;
 185         int      chain_idx = MPT_HOST_NO_CHAIN;
 186         int      sgeOffset;
 187         int      numSgeSlots, numSgeThisFrame;
 188         u32      sgflags, sgdir, thisxfer = 0;
 189         int      chain_dma_off = 0;
 190         int      newIndex;
 191         int      ii;
 192         dma_addr_t v2;
 193         u32     RequestNB;
 194
 195         sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
 196         if (sgdir == MPI_SCSIIO_CONTROL_WRITE)  {
 197                 sgdir = MPT_TRANSFER_HOST_TO_IOC;
 198         } else {
 199                 sgdir = MPT_TRANSFER_IOC_TO_HOST;
 200         }
 201
 202         psge = (char *) &pReq->SGL;
 203         frm_sz = ioc->req_sz;
 204
 205         /* Map the data portion, if any.
 206          * sges_left  = 0 if no data transfer.
 207          */
 208         sges_left = scsi_dma_map(SCpnt);
 209         if (sges_left < 0)
 210                 return FAILED;
 211
 212         /* Handle the SG case.
 213          */
 214         sg = scsi_sglist(SCpnt);
 215         sg_done  = 0;
 216         sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION);
 217         chainSge = NULL;
 218
 219         /* Prior to entering this loop - the following must be set
 220          * current MF:  sgeOffset (bytes)
 221          *              chainSge (Null if original MF is not a chain buffer)
 222          *              sg_done (num SGE done for this MF)
 223          */
 224
 225 nextSGEset:
 226         numSgeSlots = ((frm_sz - sgeOffset) / ioc->SGE_size);
 227         numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
 228
 229         sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | sgdir;
 230
 231         /* Get first (num - 1) SG elements
 232          * Skip any SG entries with a length of 0
 233          * NOTE: at finish, sg and psge pointed to NEXT data/location positions
 234          */
 235         for (ii=0; ii < (numSgeThisFrame-1); ii++) {
 236                 thisxfer = sg_dma_len(sg);
 237                 if (thisxfer == 0) {
 238                         /* Get next SG element from the OS */
 239                         sg = sg_next(sg);
 240                         sg_done++;
 241                         continue;
 242                 }
 243
 244                 v2 = sg_dma_address(sg);
 245                 ioc->add_sge(psge, sgflags | thisxfer, v2);
 246
 247                 /* Get next SG element from the OS */
 248                 sg = sg_next(sg);
 249                 psge += ioc->SGE_size;
 250                 sgeOffset += ioc->SGE_size;
 251                 sg_done++;
 252         }
 253
 254         if (numSgeThisFrame == sges_left) {
 255                 /* Add last element, end of buffer and end of list flags.
 256                  */
 257                 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT |
 258                                 MPT_SGE_FLAGS_END_OF_BUFFER |
 259                                 MPT_SGE_FLAGS_END_OF_LIST;
 260
 261                 /* Add last SGE and set termination flags.
 262                  * Note: Last SGE may have a length of 0 - which should be ok.
 263                  */
 264                 thisxfer = sg_dma_len(sg);
 265
 266                 v2 = sg_dma_address(sg);
 267                 ioc->add_sge(psge, sgflags | thisxfer, v2);
 268                 sgeOffset += ioc->SGE_size;
 269                 sg_done++;
 270
 271                 if (chainSge) {
 272                         /* The current buffer is a chain buffer,
 273                          * but there is not another one.
 274                          * Update the chain element
 275                          * Offset and Length fields.
 276                          */
 277                         ioc->add_chain((char *)chainSge, 0, sgeOffset,
 278                                 ioc->ChainBufferDMA + chain_dma_off);
 279                 } else {
 280                         /* The current buffer is the original MF
 281                          * and there is no Chain buffer.
 282                          */
 283                         pReq->ChainOffset = 0;
 284                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
 285                         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 286                             "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
 287                         ioc->RequestNB[req_idx] = RequestNB;
 288                 }
 289         } else {
 290                 /* At least one chain buffer is needed.
 291                  * Complete the first MF
 292                  *  - last SGE element, set the LastElement bit
 293                  *  - set ChainOffset (words) for orig MF
 294                  *             (OR finish previous MF chain buffer)
 295                  *  - update MFStructPtr ChainIndex
 296                  *  - Populate chain element
 297                  * Also
 298                  * Loop until done.
 299                  */
 300
 301                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n",
 302                                 ioc->name, sg_done));
 303
 304                 /* Set LAST_ELEMENT flag for last non-chain element
 305                  * in the buffer. Since psge points at the NEXT
 306                  * SGE element, go back one SGE element, update the flags
 307                  * and reset the pointer. (Note: sgflags & thisxfer are already
 308                  * set properly).
 309                  */
 310                 if (sg_done) {
 311                         u32 *ptmp = (u32 *) (psge - ioc->SGE_size);
 312                         sgflags = le32_to_cpu(*ptmp);
 313                         sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT;
 314                         *ptmp = cpu_to_le32(sgflags);
 315                 }
 316
 317                 if (chainSge) {
 318                         /* The current buffer is a chain buffer.
 319                          * chainSge points to the previous Chain Element.
 320                          * Update its chain element Offset and Length (must
 321                          * include chain element size) fields.
 322                          * Old chain element is now complete.
 323                          */
 324                         u8 nextChain = (u8) (sgeOffset >> 2);
 325                         sgeOffset += ioc->SGE_size;
 326                         ioc->add_chain((char *)chainSge, nextChain, sgeOffset,
 327                                          ioc->ChainBufferDMA + chain_dma_off);
 328                 } else {
 329                         /* The original MF buffer requires a chain buffer -
 330                          * set the offset.
 331                          * Last element in this MF is a chain element.
 332                          */
 333                         pReq->ChainOffset = (u8) (sgeOffset >> 2);
 334                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
 335                         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
 336                         ioc->RequestNB[req_idx] = RequestNB;
 337                 }
 338
 339                 sges_left -= sg_done;
 340
 341
 342                 /* NOTE: psge points to the beginning of the chain element
 343                  * in current buffer. Get a chain buffer.
 344                  */
 345                 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
 346                         dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 347                             "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
 348                             ioc->name, pReq->CDB[0], SCpnt));
 349                         return FAILED;
 350                 }
 351
 352                 /* Update the tracking arrays.
 353                  * If chainSge == NULL, update ReqToChain, else ChainToChain
 354                  */
 355                 if (chainSge) {
 356                         ioc->ChainToChain[chain_idx] = newIndex;
 357                 } else {
 358                         ioc->ReqToChain[req_idx] = newIndex;
 359                 }
 360                 chain_idx = newIndex;
 361                 chain_dma_off = ioc->req_sz * chain_idx;
 362
 363                 /* Populate the chainSGE for the current buffer.
 364                  * - Set chain buffer pointer to psge and fill
 365                  *   out the Address and Flags fields.
 366                  */
 367                 chainSge = (char *) psge;
 368                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "  Current buff @ %p (index 0x%x)",
 369                     ioc->name, psge, req_idx));
 370
 371                 /* Start the SGE for the next buffer
 372                  */
 373                 psge = (char *) (ioc->ChainBuffer + chain_dma_off);
 374                 sgeOffset = 0;
 375                 sg_done = 0;
 376
 377                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "  Chain buff @ %p (index 0x%x)\n",
 378                     ioc->name, psge, chain_idx));
 379
 380                 /* Start the SGE for the next buffer
 381                  */
 382
 383                 goto nextSGEset;
 384         }
 385
 386         return SUCCESS;
 387 } /* mptscsih_AddSGE() */
 388
 389 static void
 390 mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
 391     U32 SlotStatus)
 392 {
 393         MPT_FRAME_HDR *mf;
 394         SEPRequest_t     *SEPMsg;
 395
 396         if (ioc->bus_type != SAS)
 397                 return;
 398
 399         /* Not supported for hidden raid components
 400          */
 401         if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
 402                 return;
 403
 404         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
 405                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
 406                     ioc->name,__func__));
 407                 return;
 408         }
 409
 410         SEPMsg = (SEPRequest_t *)mf;
 411         SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
 412         SEPMsg->Bus = vtarget->channel;
 413         SEPMsg->TargetID = vtarget->id;
 414         SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
 415         SEPMsg->SlotStatus = SlotStatus;
 416         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 417             "Sending SEP cmd=%x channel=%d id=%d\n",
 418             ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
 419         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
 420 }
 421
 422 #ifdef CONFIG_FUSION_LOGGING
 423 /**
 424  *      mptscsih_info_scsiio - debug print info on reply frame
 425  *      @ioc: Pointer to MPT_ADAPTER structure
 426  *      @sc: original scsi cmnd pointer
 427  *      @pScsiReply: Pointer to MPT reply frame
 428  *
 429  *      MPT_DEBUG_REPLY needs to be enabled to obtain this info
 430  *
 431  *      Refer to lsi/mpi.h.
 432  **/
 433 static void
 434 mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
 435 {
 436         char    *desc = NULL;
 437         char    *desc1 = NULL;
 438         u16     ioc_status;
 439         u8      skey, asc, ascq;
 440
 441         ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
 442
 443         switch (ioc_status) {
 444
 445         case MPI_IOCSTATUS_SUCCESS:
 446                 desc = "success";
 447                 break;
 448         case MPI_IOCSTATUS_SCSI_INVALID_BUS:
 449                 desc = "invalid bus";
 450                 break;
 451         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
 452                 desc = "invalid target_id";
 453                 break;
 454         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
 455                 desc = "device not there";
 456                 break;
 457         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
 458                 desc = "data overrun";
 459                 break;
 460         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
 461                 desc = "data underrun";
 462                 break;
 463         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
 464                 desc = "I/O data error";
 465                 break;
 466         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
 467                 desc = "protocol error";
 468                 break;
 469         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
 470                 desc = "task terminated";
 471                 break;
 472         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
 473                 desc = "residual mismatch";
 474                 break;
 475         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
 476                 desc = "task management failed";
 477                 break;
 478         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
 479                 desc = "IOC terminated";
 480                 break;
 481         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
 482                 desc = "ext terminated";
 483                 break;
 484         default:
 485                 desc = "";
 486                 break;
 487         }
 488
 489         switch (pScsiReply->SCSIStatus)
 490         {
 491
 492         case MPI_SCSI_STATUS_SUCCESS:
 493                 desc1 = "success";
 494                 break;
 495         case MPI_SCSI_STATUS_CHECK_CONDITION:
 496                 desc1 = "check condition";
 497                 break;
 498         case MPI_SCSI_STATUS_CONDITION_MET:
 499                 desc1 = "condition met";
 500                 break;
 501         case MPI_SCSI_STATUS_BUSY:
 502                 desc1 = "busy";
 503                 break;
 504         case MPI_SCSI_STATUS_INTERMEDIATE:
 505                 desc1 = "intermediate";
 506                 break;
 507         case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET:
 508                 desc1 = "intermediate condmet";
 509                 break;
 510         case MPI_SCSI_STATUS_RESERVATION_CONFLICT:
 511                 desc1 = "reservation conflict";
 512                 break;
 513         case MPI_SCSI_STATUS_COMMAND_TERMINATED:
 514                 desc1 = "command terminated";
 515                 break;
 516         case MPI_SCSI_STATUS_TASK_SET_FULL:
 517                 desc1 = "task set full";
 518                 break;
 519         case MPI_SCSI_STATUS_ACA_ACTIVE:
 520                 desc1 = "aca active";
 521                 break;
 522         case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT:
 523                 desc1 = "fcpext device logged out";
 524                 break;
 525         case MPI_SCSI_STATUS_FCPEXT_NO_LINK:
 526                 desc1 = "fcpext no link";
 527                 break;
 528         case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED:
 529                 desc1 = "fcpext unassigned";
 530                 break;
 531         default:
 532                 desc1 = "";
 533                 break;
 534         }
 535
 536         scsi_print_command(sc);
 537         printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %llu\n",
 538             ioc->name, pScsiReply->Bus, pScsiReply->TargetID, sc->device->lun);
 539         printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
 540             "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
 541             scsi_get_resid(sc));
 542         printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, "
 543             "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag),
 544             le32_to_cpu(pScsiReply->TransferCount), sc->result);
 545
 546         printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), "
 547             "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
 548             ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus,
 549             pScsiReply->SCSIState);
 550
 551         if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
 552                 skey = sc->sense_buffer[2] & 0x0F;
 553                 asc = sc->sense_buffer[12];
 554                 ascq = sc->sense_buffer[13];
 555
 556                 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: "
 557                     "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq);
 558         }
 559
 560         /*
 561          *  Look for + dump FCP ResponseInfo[]!
 562          */
 563         if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
 564             pScsiReply->ResponseInfo)
 565                 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n",
 566                     ioc->name, le32_to_cpu(pScsiReply->ResponseInfo));
 567 }
 568 #endif
 569
 570 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 571 /*
 572  *      mptscsih_io_done - Main SCSI IO callback routine registered to
 573  *      Fusion MPT (base) driver
 574  *      @ioc: Pointer to MPT_ADAPTER structure
 575  *      @mf: Pointer to original MPT request frame
 576  *      @r: Pointer to MPT reply frame (NULL if TurboReply)
 577  *
 578  *      This routine is called from mpt.c::mpt_interrupt() at the completion
 579  *      of any SCSI IO request.
 580  *      This routine is registered with the Fusion MPT (base) driver at driver
 581  *      load/init time via the mpt_register() API call.
 582  *
 583  *      Returns 1 indicating alloc'd request frame ptr should be freed.
 584  */
 585 int
 586 mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
 587 {
 588         struct scsi_cmnd        *sc;
 589         MPT_SCSI_HOST   *hd;
 590         SCSIIORequest_t *pScsiReq;
 591         SCSIIOReply_t   *pScsiReply;
 592         u16              req_idx, req_idx_MR;
 593         VirtDevice       *vdevice;
 594         VirtTarget       *vtarget;
 595
 596         hd = shost_priv(ioc->sh);
 597         req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
 598         req_idx_MR = (mr != NULL) ?
 599             le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
 600
 601         /* Special case, where already freed message frame is received from
 602          * Firmware. It happens with Resetting IOC.
 603          * Return immediately. Do not care
 604          */
 605         if ((req_idx != req_idx_MR) ||
 606             (le32_to_cpu(mf->u.frame.linkage.arg1) == 0xdeadbeaf))
 607                 return 0;
 608
 609         sc = mptscsih_getclear_scsi_lookup(ioc, req_idx);
 610         if (sc == NULL) {
 611                 MPIHeader_t *hdr = (MPIHeader_t *)mf;
 612
 613                 /* Remark: writeSDP1 will use the ScsiDoneCtx
 614                  * If a SCSI I/O cmd, device disabled by OS and
 615                  * completion done. Cannot touch sc struct. Just free mem.
 616                  */
 617                 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST)
 618                         printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n",
 619                         ioc->name);
 620
 621                 mptscsih_freeChainBuffers(ioc, req_idx);
 622                 return 1;
 623         }
 624
 625         if ((unsigned char *)mf != sc->host_scribble) {
 626                 mptscsih_freeChainBuffers(ioc, req_idx);
 627                 return 1;
 628         }
 629
 630         if (ioc->bus_type == SAS) {
 631                 VirtDevice *vdevice = sc->device->hostdata;
 632
 633                 if (!vdevice || !vdevice->vtarget ||
 634                     vdevice->vtarget->deleted) {
 635                         sc->result = DID_NO_CONNECT << 16;
 636                         goto out;
 637                 }
 638         }
 639
 640         sc->host_scribble = NULL;
 641         sc->result = DID_OK << 16;              /* Set default reply as OK */
 642         pScsiReq = (SCSIIORequest_t *) mf;
 643         pScsiReply = (SCSIIOReply_t *) mr;
 644
 645         if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
 646                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 647                         "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n",
 648                         ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag));
 649         }else{
 650                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 651                         "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
 652                         ioc->name, mf, mr, sc, req_idx));
 653         }
 654
 655         if (pScsiReply == NULL) {
 656                 /* special context reply handling */
 657                 ;
 658         } else {
 659                 u32      xfer_cnt;
 660                 u16      status;
 661                 u8       scsi_state, scsi_status;
 662                 u32      log_info;
 663
 664                 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
 665
 666                 scsi_state = pScsiReply->SCSIState;
 667                 scsi_status = pScsiReply->SCSIStatus;
 668                 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
 669                 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
 670                 log_info = le32_to_cpu(pScsiReply->IOCLogInfo);
 671
 672                 /*
 673                  *  if we get a data underrun indication, yet no data was
 674                  *  transferred and the SCSI status indicates that the
 675                  *  command was never started, change the data underrun
 676                  *  to success
 677                  */
 678                 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
 679                     (scsi_status == MPI_SCSI_STATUS_BUSY ||
 680                      scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT ||
 681                      scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) {
 682                         status = MPI_IOCSTATUS_SUCCESS;
 683                 }
 684
 685                 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
 686                         mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);
 687
 688                 /*
 689                  *  Look for + dump FCP ResponseInfo[]!
 690                  */
 691                 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
 692                     pScsiReply->ResponseInfo) {
 693                         printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%llu] "
 694                         "FCP_ResponseInfo=%08xh\n", ioc->name,
 695                         sc->device->host->host_no, sc->device->channel,
 696                         sc->device->id, sc->device->lun,
 697                         le32_to_cpu(pScsiReply->ResponseInfo));
 698                 }
 699
 700                 switch(status) {
 701                 case MPI_IOCSTATUS_BUSY:                        /* 0x0002 */
 702                 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:      /* 0x0006 */
 703                         /* CHECKME!
 704                          * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry)
 705                          * But not: DID_BUS_BUSY lest one risk
 706                          * killing interrupt handler:-(
 707                          */
 708                         sc->result = SAM_STAT_BUSY;
 709                         break;
 710
 711                 case MPI_IOCSTATUS_SCSI_INVALID_BUS:            /* 0x0041 */
 712                 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:       /* 0x0042 */
 713                         sc->result = DID_BAD_TARGET << 16;
 714                         break;
 715
 716                 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
 717                         /* Spoof to SCSI Selection Timeout! */
 718                         if (ioc->bus_type != FC)
 719                                 sc->result = DID_NO_CONNECT << 16;
 720                         /* else fibre, just stall until rescan event */
 721                         else
 722                                 sc->result = DID_REQUEUE << 16;
 723
 724                         if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
 725                                 hd->sel_timeout[pScsiReq->TargetID]++;
 726
 727                         vdevice = sc->device->hostdata;
 728                         if (!vdevice)
 729                                 break;
 730                         vtarget = vdevice->vtarget;
 731                         if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) {
 732                                 mptscsih_issue_sep_command(ioc, vtarget,
 733                                     MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED);
 734                                 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON;
 735                         }
 736                         break;
 737
 738                 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
 739                         if ( ioc->bus_type == SAS ) {
 740                                 u16 ioc_status =
 741                                     le16_to_cpu(pScsiReply->IOCStatus);
 742                                 if ((ioc_status &
 743                                         MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
 744                                         &&
 745                                         ((log_info & SAS_LOGINFO_MASK) ==
 746                                         SAS_LOGINFO_NEXUS_LOSS)) {
 747                                                 VirtDevice *vdevice =
 748                                                 sc->device->hostdata;
 749
 750                                             /* flag the device as being in
 751                                              * device removal delay so we can
 752                                              * notify the midlayer to hold off
 753                                              * on timeout eh */
 754                                                 if (vdevice && vdevice->
 755                                                         vtarget &&
 756                                                         vdevice->vtarget->
 757                                                         raidVolume)
 758                                                         printk(KERN_INFO
 759                                                         "Skipping Raid Volume"
 760                                                         "for inDMD\n");
 761                                                 else if (vdevice &&
 762                                                         vdevice->vtarget)
 763                                                         vdevice->vtarget->
 764                                                                 inDMD = 1;
 765
 766                                             sc->result =
 767                                                     (DID_TRANSPORT_DISRUPTED
 768                                                     << 16);
 769                                             break;
 770                                 }
 771                         } else if (ioc->bus_type == FC) {
 772                                 /*
 773                                  * The FC IOC may kill a request for variety of
 774                                  * reasons, some of which may be recovered by a
 775                                  * retry, some which are unlikely to be
 776                                  * recovered. Return DID_ERROR instead of
 777                                  * DID_RESET to permit retry of the command,
 778                                  * just not an infinite number of them
 779                                  */
 780                                 sc->result = DID_ERROR << 16;
 781                                 break;
 782                         }
 783
 784                         /*
 785                          * Allow non-SAS & non-NEXUS_LOSS to drop into below code
 786                          */
 787
 788                 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
 789                         /* Linux handles an unsolicited DID_RESET better
 790                          * than an unsolicited DID_ABORT.
 791                          */
 792                         sc->result = DID_RESET << 16;
 793                         break;
 794
 795                 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
 796                         if (ioc->bus_type == FC)
 797                                 sc->result = DID_ERROR << 16;
 798                         else
 799                                 sc->result = DID_RESET << 16;
 800                         break;
 801
 802                 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:      /* 0x0049 */
 803                         scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
 804                         if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
 805                                 sc->result=DID_SOFT_ERROR << 16;
 806                         else /* Sufficient data transfer occurred */
 807                                 sc->result = (DID_OK << 16) | scsi_status;
 808                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 809                             "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
 810                             ioc->name, sc->result, sc->device->channel, sc->device->id));
 811                         break;
 812
 813                 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
 814                         /*
 815                          *  Do upfront check for valid SenseData and give it
 816                          *  precedence!
 817                          */
 818                         sc->result = (DID_OK << 16) | scsi_status;
 819                         if (!(scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
 820
 821                                 /*
 822                                  * For an Errata on LSI53C1030
 823                                  * When the length of request data
 824                                  * and transfer data are different
 825                                  * with result of command (READ or VERIFY),
 826                                  * DID_SOFT_ERROR is set.
 827                                  */
 828                                 if (ioc->bus_type == SPI) {
 829                                         if ((pScsiReq->CDB[0] == READ_6  && ((pScsiReq->CDB[1] & 0x02) == 0)) ||
 830                                             pScsiReq->CDB[0] == READ_10 ||
 831                                             pScsiReq->CDB[0] == READ_12 ||
 832                                                 (pScsiReq->CDB[0] == READ_16 &&
 833                                                 ((pScsiReq->CDB[1] & 0x02) == 0)) ||
 834                                             pScsiReq->CDB[0] == VERIFY  ||
 835                                             pScsiReq->CDB[0] == VERIFY_16) {
 836                                                 if (scsi_bufflen(sc) !=
 837                                                         xfer_cnt) {
 838                                                         sc->result =
 839                                                         DID_SOFT_ERROR << 16;
 840                                                     printk(KERN_WARNING "Errata"
 841                                                     "on LSI53C1030 occurred."
 842                                                     "sc->req_bufflen=0x%02x,"
 843                                                     "xfer_cnt=0x%02x\n",
 844                                                     scsi_bufflen(sc),
 845                                                     xfer_cnt);
 846                                                 }
 847                                         }
 848                                 }
 849
 850                                 if (xfer_cnt < sc->underflow) {
 851                                         if (scsi_status == SAM_STAT_BUSY)
 852                                                 sc->result = SAM_STAT_BUSY;
 853                                         else
 854                                                 sc->result = DID_SOFT_ERROR << 16;
 855                                 }
 856                                 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
 857                                         /* What to do?
 858                                         */
 859                                         sc->result = DID_SOFT_ERROR << 16;
 860                                 }
 861                                 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
 862                                         /*  Not real sure here either...  */
 863                                         sc->result = DID_RESET << 16;
 864                                 }
 865                         }
 866
 867
 868                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 869                             "  sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
 870                             ioc->name, sc->underflow));
 871                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 872                             "  ActBytesXferd=%02xh\n", ioc->name, xfer_cnt));
 873
 874                         /* Report Queue Full
 875                          */
 876                         if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
 877                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 878
 879                         break;
 880
 881                 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:           /* 0x0044 */
 882                         scsi_set_resid(sc, 0);
 883                 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
 884                 case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
 885                         sc->result = (DID_OK << 16) | scsi_status;
 886                         if (scsi_state == 0) {
 887                                 ;
 888                         } else if (scsi_state &
 889                             MPI_SCSI_STATE_AUTOSENSE_VALID) {
 890
 891                                 /*
 892                                  * For potential trouble on LSI53C1030.
 893                                  * (date:2007.xx.)
 894                                  * It is checked whether the length of
 895                                  * request data is equal to
 896                                  * the length of transfer and residual.
 897                                  * MEDIUM_ERROR is set by incorrect data.
 898                                  */
 899                                 if ((ioc->bus_type == SPI) &&
 900                                         (sc->sense_buffer[2] & 0x20)) {
 901                                         u32      difftransfer;
 902                                         difftransfer =
 903                                         sc->sense_buffer[3] << 24 |
 904                                         sc->sense_buffer[4] << 16 |
 905                                         sc->sense_buffer[5] << 8 |
 906                                         sc->sense_buffer[6];
 907                                         if (((sc->sense_buffer[3] & 0x80) ==
 908                                                 0x80) && (scsi_bufflen(sc)
 909                                                 != xfer_cnt)) {
 910                                                 sc->sense_buffer[2] =
 911                                                     MEDIUM_ERROR;
 912                                                 sc->sense_buffer[12] = 0xff;
 913                                                 sc->sense_buffer[13] = 0xff;
 914                                                 printk(KERN_WARNING"Errata"
 915                                                 "on LSI53C1030 occurred."
 916                                                 "sc->req_bufflen=0x%02x,"
 917                                                 "xfer_cnt=0x%02x\n" ,
 918                                                 scsi_bufflen(sc),
 919                                                 xfer_cnt);
 920                                         }
 921                                         if (((sc->sense_buffer[3] & 0x80)
 922                                                 != 0x80) &&
 923                                                 (scsi_bufflen(sc) !=
 924                                                 xfer_cnt + difftransfer)) {
 925                                                 sc->sense_buffer[2] =
 926                                                         MEDIUM_ERROR;
 927                                                 sc->sense_buffer[12] = 0xff;
 928                                                 sc->sense_buffer[13] = 0xff;
 929                                                 printk(KERN_WARNING
 930                                                 "Errata on LSI53C1030 occurred"
 931                                                 "sc->req_bufflen=0x%02x,"
 932                                                 " xfer_cnt=0x%02x,"
 933                                                 "difftransfer=0x%02x\n",
 934                                                 scsi_bufflen(sc),
 935                                                 xfer_cnt,
 936                                                 difftransfer);
 937                                         }
 938                                 }
 939
 940                                 /*
 941                                  * If running against circa 200003dd 909 MPT f/w,
 942                                  * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
 943                                  * (QUEUE_FULL) returned from device! --> get 0x0000?128
 944                                  * and with SenseBytes set to 0.
 945                                  */
 946                                 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
 947                                         mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 948
 949                         }
 950                         else if (scsi_state &
 951                                  (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
 952                            ) {
 953                                 /*
 954                                  * What to do?
 955                                  */
 956                                 sc->result = DID_SOFT_ERROR << 16;
 957                         }
 958                         else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
 959                                 /*  Not real sure here either...  */
 960                                 sc->result = DID_RESET << 16;
 961                         }
 962                         else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
 963                                 /* Device Inq. data indicates that it supports
 964                                  * QTags, but rejects QTag messages.
 965                                  * This command completed OK.
 966                                  *
 967                                  * Not real sure here either so do nothing...  */
 968                         }
 969
 970                         if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
 971                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 972
 973                         /* Add handling of:
 974                          * Reservation Conflict, Busy,
 975                          * Command Terminated, CHECK
 976                          */
 977                         break;
 978
 979                 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
 980                         sc->result = DID_SOFT_ERROR << 16;
 981                         break;
 982
 983                 case MPI_IOCSTATUS_INVALID_FUNCTION:            /* 0x0001 */
 984                 case MPI_IOCSTATUS_INVALID_SGL:                 /* 0x0003 */
 985                 case MPI_IOCSTATUS_INTERNAL_ERROR:              /* 0x0004 */
 986                 case MPI_IOCSTATUS_RESERVED:                    /* 0x0005 */
 987                 case MPI_IOCSTATUS_INVALID_FIELD:               /* 0x0007 */
 988                 case MPI_IOCSTATUS_INVALID_STATE:               /* 0x0008 */
 989                 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
 990                 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:       /* 0x004A */
 991                 default:
 992                         /*
 993                          * What to do?
 994                          */
 995                         sc->result = DID_SOFT_ERROR << 16;
 996                         break;
 997
 998                 }       /* switch(status) */
 999
1000 #ifdef CONFIG_FUSION_LOGGING
1001                 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
1002                         mptscsih_info_scsiio(ioc, sc, pScsiReply);
1003 #endif
1004
1005         } /* end of address reply case */
1006 out:
1007         /* Unmap the DMA buffers, if any. */
1008         scsi_dma_unmap(sc);
1009
1010         sc->scsi_done(sc);              /* Issue the command callback */
1011
1012         /* Free Chain buffers */
1013         mptscsih_freeChainBuffers(ioc, req_idx);
1014         return 1;
1015 }
1016
1017 /*
1018  *      mptscsih_flush_running_cmds - For each command found, search
1019  *              Scsi_Host instance taskQ and reply to OS.
1020  *              Called only if recovering from a FW reload.
1021  *      @hd: Pointer to a SCSI HOST structure
1022  *
1023  *      Returns: None.
1024  *
1025  *      Must be called while new I/Os are being queued.
1026  */
1027 void
1028 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
1029 {
1030         MPT_ADAPTER *ioc = hd->ioc;
1031         struct scsi_cmnd *sc;
1032         SCSIIORequest_t *mf = NULL;
1033         int              ii;
1034         int              channel, id;
1035
1036         for (ii= 0; ii < ioc->req_depth; ii++) {
1037                 sc = mptscsih_getclear_scsi_lookup(ioc, ii);
1038                 if (!sc)
1039                         continue;
1040                 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1041                 if (!mf)
1042                         continue;
1043                 channel = mf->Bus;
1044                 id = mf->TargetID;
1045                 mptscsih_freeChainBuffers(ioc, ii);
1046                 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1047                 if ((unsigned char *)mf != sc->host_scribble)
1048                         continue;
1049                 scsi_dma_unmap(sc);
1050                 sc->result = DID_RESET << 16;
1051                 sc->host_scribble = NULL;
1052                 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
1053                     "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, "
1054                     "idx=%x\n", ioc->name, channel, id, sc, mf, ii));
1055                 sc->scsi_done(sc);
1056         }
1057 }
1058 EXPORT_SYMBOL(mptscsih_flush_running_cmds);
1059
1060 /*
1061  *      mptscsih_search_running_cmds - Delete any commands associated
1062  *              with the specified target and lun. Function called only
1063  *              when a lun is disable by mid-layer.
1064  *              Do NOT access the referenced scsi_cmnd structure or
1065  *              members. Will cause either a paging or NULL ptr error.
1066  *              (BUT, BUT, BUT, the code does reference it! - mdr)
1067  *      @hd: Pointer to a SCSI HOST structure
1068  *      @vdevice: per device private data
1069  *
1070  *      Returns: None.
1071  *
1072  *      Called from slave_destroy.
1073  */
1074 static void
1075 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
1076 {
1077         SCSIIORequest_t *mf = NULL;
1078         int              ii;
1079         struct scsi_cmnd *sc;
1080         struct scsi_lun  lun;
1081         MPT_ADAPTER *ioc = hd->ioc;
1082         unsigned long   flags;
1083
1084         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1085         for (ii = 0; ii < ioc->req_depth; ii++) {
1086                 if ((sc = ioc->ScsiLookup[ii]) != NULL) {
1087
1088                         mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1089                         if (mf == NULL)
1090                                 continue;
1091                         /* If the device is a hidden raid component, then its
1092                          * expected that the mf->function will be RAID_SCSI_IO
1093                          */
1094                         if (vdevice->vtarget->tflags &
1095                             MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
1096                             MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
1097                                 continue;
1098
1099                         int_to_scsilun(vdevice->lun, &lun);
1100                         if ((mf->Bus != vdevice->vtarget->channel) ||
1101                             (mf->TargetID != vdevice->vtarget->id) ||
1102                             memcmp(lun.scsi_lun, mf->LUN, 8))
1103                                 continue;
1104
1105                         if ((unsigned char *)mf != sc->host_scribble)
1106                                 continue;
1107                         ioc->ScsiLookup[ii] = NULL;
1108                         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1109                         mptscsih_freeChainBuffers(ioc, ii);
1110                         mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1111                         scsi_dma_unmap(sc);
1112                         sc->host_scribble = NULL;
1113                         sc->result = DID_NO_CONNECT << 16;
1114                         dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device,
1115                            MYIOC_s_FMT "completing cmds: fw_channel %d, "
1116                            "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name,
1117                            vdevice->vtarget->channel, vdevice->vtarget->id,
1118                            sc, mf, ii));
1119                         sc->scsi_done(sc);
1120                         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1121                 }
1122         }
1123         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1124         return;
1125 }
1126
1127 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1128
1129 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1130 /*
1131  *      mptscsih_report_queue_full - Report QUEUE_FULL status returned
1132  *      from a SCSI target device.
1133  *      @sc: Pointer to scsi_cmnd structure
1134  *      @pScsiReply: Pointer to SCSIIOReply_t
1135  *      @pScsiReq: Pointer to original SCSI request
1136  *
1137  *      This routine periodically reports QUEUE_FULL status returned from a
1138  *      SCSI target device.  It reports this to the console via kernel
1139  *      printk() API call, not more than once every 10 seconds.
1140  */
1141 static void
1142 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1143 {
1144         long time = jiffies;
1145         MPT_SCSI_HOST           *hd;
1146         MPT_ADAPTER     *ioc;
1147
1148         if (sc->device == NULL)
1149                 return;
1150         if (sc->device->host == NULL)
1151                 return;
1152         if ((hd = shost_priv(sc->device->host)) == NULL)
1153                 return;
1154         ioc = hd->ioc;
1155         if (time - hd->last_queue_full > 10 * HZ) {
1156                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%llu) reported QUEUE_FULL!\n",
1157                                 ioc->name, 0, sc->device->id, sc->device->lun));
1158                 hd->last_queue_full = time;
1159         }
1160 }
1161
1162 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1163 /*
1164  *      mptscsih_remove - Removed scsi devices
1165  *      @pdev: Pointer to pci_dev structure
1166  *
1167  *
1168  */
1169 void
1170 mptscsih_remove(struct pci_dev *pdev)
1171 {
1172         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1173         struct Scsi_Host        *host = ioc->sh;
1174         MPT_SCSI_HOST           *hd;
1175         int sz1;
1176
1177         scsi_remove_host(host);
1178
1179         if (host == NULL)
1180                 hd = NULL;
1181         else
1182                 hd = shost_priv(host);
1183
1184         mptscsih_shutdown(pdev);
1185
1186         sz1=0;
1187
1188         if (ioc->ScsiLookup != NULL) {
1189                 sz1 = ioc->req_depth * sizeof(void *);
1190                 kfree(ioc->ScsiLookup);
1191                 ioc->ScsiLookup = NULL;
1192         }
1193
1194         dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1195             "Free'd ScsiLookup (%d) memory\n",
1196             ioc->name, sz1));
1197
1198         if (hd)
1199                 kfree(hd->info_kbuf);
1200
1201         /* NULL the Scsi_Host pointer
1202          */
1203         ioc->sh = NULL;
1204
1205         if (host)
1206                 scsi_host_put(host);
1207         mpt_detach(pdev);
1208
1209 }
1210
1211 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1212 /*
1213  *      mptscsih_shutdown - reboot notifier
1214  *
1215  */
1216 void
1217 mptscsih_shutdown(struct pci_dev *pdev)
1218 {
1219 }
1220
1221 #ifdef CONFIG_PM
1222 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1223 /*
1224  *      mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1225  *
1226  *
1227  */
1228 int
1229 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1230 {
1231         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1232
1233         scsi_block_requests(ioc->sh);
1234         flush_scheduled_work();
1235         mptscsih_shutdown(pdev);
1236         return mpt_suspend(pdev,state);
1237 }
1238
1239 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1240 /*
1241  *      mptscsih_resume - Fusion MPT scsi driver resume routine.
1242  *
1243  *
1244  */
1245 int
1246 mptscsih_resume(struct pci_dev *pdev)
1247 {
1248         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1249         int rc;
1250
1251         rc = mpt_resume(pdev);
1252         scsi_unblock_requests(ioc->sh);
1253         return rc;
1254 }
1255
1256 #endif
1257
1258 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1259 /**
1260  *      mptscsih_info - Return information about MPT adapter
1261  *      @SChost: Pointer to Scsi_Host structure
1262  *
1263  *      (linux scsi_host_template.info routine)
1264  *
1265  *      Returns pointer to buffer where information was written.
1266  */
1267 const char *
1268 mptscsih_info(struct Scsi_Host *SChost)
1269 {
1270         MPT_SCSI_HOST *h;
1271         int size = 0;
1272
1273         h = shost_priv(SChost);
1274
1275         if (h->info_kbuf == NULL)
1276                 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1277                         return h->info_kbuf;
1278         h->info_kbuf[0] = '\0';
1279
1280         mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1281         h->info_kbuf[size-1] = '\0';
1282
1283         return h->info_kbuf;
1284 }
1285
1286 int mptscsih_show_info(struct seq_file *m, struct Scsi_Host *host)
1287 {
1288         MPT_SCSI_HOST   *hd = shost_priv(host);
1289         MPT_ADAPTER     *ioc = hd->ioc;
1290
1291         seq_printf(m, "%s: %s, ", ioc->name, ioc->prod_name);
1292         seq_printf(m, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1293         seq_printf(m, "Ports=%d, ", ioc->facts.NumberOfPorts);
1294         seq_printf(m, "MaxQ=%d\n", ioc->req_depth);
1295
1296         return 0;
1297 }
1298
1299 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1300 #define ADD_INDEX_LOG(req_ent)  do { } while(0)
1301
1302 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1303 /**
1304  *      mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1305  *      @SCpnt: Pointer to scsi_cmnd structure
1306  *
1307  *      (linux scsi_host_template.queuecommand routine)
1308  *      This is the primary SCSI IO start routine.  Create a MPI SCSIIORequest
1309  *      from a linux scsi_cmnd request and send it to the IOC.
1310  *
1311  *      Returns 0. (rtn value discarded by linux scsi mid-layer)
1312  */
1313 int
1314 mptscsih_qcmd(struct scsi_cmnd *SCpnt)
1315 {
1316         MPT_SCSI_HOST           *hd;
1317         MPT_FRAME_HDR           *mf;
1318         SCSIIORequest_t         *pScsiReq;
1319         VirtDevice              *vdevice = SCpnt->device->hostdata;
1320         u32      datalen;
1321         u32      scsictl;
1322         u32      scsidir;
1323         u32      cmd_len;
1324         int      my_idx;
1325         int      ii;
1326         MPT_ADAPTER *ioc;
1327
1328         hd = shost_priv(SCpnt->device->host);
1329         ioc = hd->ioc;
1330
1331         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p\n",
1332                 ioc->name, SCpnt));
1333
1334         if (ioc->taskmgmt_quiesce_io)
1335                 return SCSI_MLQUEUE_HOST_BUSY;
1336
1337         /*
1338          *  Put together a MPT SCSI request...
1339          */
1340         if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1341                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1342                                 ioc->name));
1343                 return SCSI_MLQUEUE_HOST_BUSY;
1344         }
1345
1346         pScsiReq = (SCSIIORequest_t *) mf;
1347
1348         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1349
1350         ADD_INDEX_LOG(my_idx);
1351
1352         /*    TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1353          *    Seems we may receive a buffer (datalen>0) even when there
1354          *    will be no data transfer!  GRRRRR...
1355          */
1356         if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1357                 datalen = scsi_bufflen(SCpnt);
1358                 scsidir = MPI_SCSIIO_CONTROL_READ;      /* DATA IN  (host<--ioc<--dev) */
1359         } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1360                 datalen = scsi_bufflen(SCpnt);
1361                 scsidir = MPI_SCSIIO_CONTROL_WRITE;     /* DATA OUT (host-->ioc-->dev) */
1362         } else {
1363                 datalen = 0;
1364                 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1365         }
1366
1367         /* Default to untagged. Once a target structure has been allocated,
1368          * use the Inquiry data to determine if device supports tagged.
1369          */
1370         if ((vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1371             && (SCpnt->device->tagged_supported)) {
1372                 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1373                 if (SCpnt->request && SCpnt->request->ioprio) {
1374                         if (((SCpnt->request->ioprio & 0x7) == 1) ||
1375                                 !(SCpnt->request->ioprio & 0x7))
1376                                 scsictl |= MPI_SCSIIO_CONTROL_HEADOFQ;
1377                 }
1378         } else
1379                 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1380
1381
1382         /* Use the above information to set up the message frame
1383          */
1384         pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1385         pScsiReq->Bus = vdevice->vtarget->channel;
1386         pScsiReq->ChainOffset = 0;
1387         if (vdevice->vtarget->tflags &  MPT_TARGET_FLAGS_RAID_COMPONENT)
1388                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1389         else
1390                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1391         pScsiReq->CDBLength = SCpnt->cmd_len;
1392         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1393         pScsiReq->Reserved = 0;
1394         pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1395         int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1396         pScsiReq->Control = cpu_to_le32(scsictl);
1397
1398         /*
1399          *  Write SCSI CDB into the message
1400          */
1401         cmd_len = SCpnt->cmd_len;
1402         for (ii=0; ii < cmd_len; ii++)
1403                 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1404
1405         for (ii=cmd_len; ii < 16; ii++)
1406                 pScsiReq->CDB[ii] = 0;
1407
1408         /* DataLength */
1409         pScsiReq->DataLength = cpu_to_le32(datalen);
1410
1411         /* SenseBuffer low address */
1412         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1413                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1414
1415         /* Now add the SG list
1416          * Always have a SGE even if null length.
1417          */
1418         if (datalen == 0) {
1419                 /* Add a NULL SGE */
1420                 ioc->add_sge((char *)&pScsiReq->SGL,
1421                         MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1422                         (dma_addr_t) -1);
1423         } else {
1424                 /* Add a 32 or 64 bit SGE */
1425                 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1426                         goto fail;
1427         }
1428
1429         SCpnt->host_scribble = (unsigned char *)mf;
1430         mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1431
1432         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1433         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1434                         ioc->name, SCpnt, mf, my_idx));
1435         DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1436         return 0;
1437
1438  fail:
1439         mptscsih_freeChainBuffers(ioc, my_idx);
1440         mpt_free_msg_frame(ioc, mf);
1441         return SCSI_MLQUEUE_HOST_BUSY;
1442 }
1443
1444 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1445 /*
1446  *      mptscsih_freeChainBuffers - Function to free chain buffers associated
1447  *      with a SCSI IO request
1448  *      @hd: Pointer to the MPT_SCSI_HOST instance
1449  *      @req_idx: Index of the SCSI IO request frame.
1450  *
1451  *      Called if SG chain buffer allocation fails and mptscsih callbacks.
1452  *      No return.
1453  */
1454 static void
1455 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1456 {
1457         MPT_FRAME_HDR *chain;
1458         unsigned long flags;
1459         int chain_idx;
1460         int next;
1461
1462         /* Get the first chain index and reset
1463          * tracker state.
1464          */
1465         chain_idx = ioc->ReqToChain[req_idx];
1466         ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1467
1468         while (chain_idx != MPT_HOST_NO_CHAIN) {
1469
1470                 /* Save the next chain buffer index */
1471                 next = ioc->ChainToChain[chain_idx];
1472
1473                 /* Free this chain buffer and reset
1474                  * tracker
1475                  */
1476                 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1477
1478                 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1479                                         + (chain_idx * ioc->req_sz));
1480
1481                 spin_lock_irqsave(&ioc->FreeQlock, flags);
1482                 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1483                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1484
1485                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1486                                 ioc->name, chain_idx));
1487
1488                 /* handle next */
1489                 chain_idx = next;
1490         }
1491         return;
1492 }
1493
1494 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1495 /*
1496  *      Reset Handling
1497  */
1498
1499 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1500 /**
1501  *      mptscsih_IssueTaskMgmt - Generic send Task Management function.
1502  *      @hd: Pointer to MPT_SCSI_HOST structure
1503  *      @type: Task Management type
1504  *      @channel: channel number for task management
1505  *      @id: Logical Target ID for reset (if appropriate)
1506  *      @lun: Logical Unit for reset (if appropriate)
1507  *      @ctx2abort: Context for the task to be aborted (if appropriate)
1508  *      @timeout: timeout for task management control
1509  *
1510  *      Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1511  *      or a non-interrupt thread.  In the former, must not call schedule().
1512  *
1513  *      Not all fields are meaningfull for all task types.
1514  *
1515  *      Returns 0 for SUCCESS, or FAILED.
1516  *
1517  **/
1518 int
1519 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, u64 lun,
1520         int ctx2abort, ulong timeout)
1521 {
1522         MPT_FRAME_HDR   *mf;
1523         SCSITaskMgmt_t  *pScsiTm;
1524         int              ii;
1525         int              retval;
1526         MPT_ADAPTER     *ioc = hd->ioc;
1527         unsigned long    timeleft;
1528         u8               issue_hard_reset;
1529         u32              ioc_raw_state;
1530         unsigned long    time_count;
1531
1532         issue_hard_reset = 0;
1533         ioc_raw_state = mpt_GetIocState(ioc, 0);
1534
1535         if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1536                 printk(MYIOC_s_WARN_FMT
1537                         "TaskMgmt type=%x: IOC Not operational (0x%x)!\n",
1538                         ioc->name, type, ioc_raw_state);
1539                 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
1540                     ioc->name, __func__);
1541                 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1542                         printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset "
1543                             "FAILED!!\n", ioc->name);
1544                 return 0;
1545         }
1546
1547         /* DOORBELL ACTIVE check is not required if
1548         *  MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported.
1549         */
1550
1551         if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q)
1552                  && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) &&
1553                 (ioc_raw_state & MPI_DOORBELL_ACTIVE)) {
1554                 printk(MYIOC_s_WARN_FMT
1555                         "TaskMgmt type=%x: ioc_state: "
1556                         "DOORBELL_ACTIVE (0x%x)!\n",
1557                         ioc->name, type, ioc_raw_state);
1558                 return FAILED;
1559         }
1560
1561         mutex_lock(&ioc->taskmgmt_cmds.mutex);
1562         if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
1563                 mf = NULL;
1564                 retval = FAILED;
1565                 goto out;
1566         }
1567
1568         /* Return Fail to calling function if no message frames available.
1569          */
1570         if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1571                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1572                         "TaskMgmt no msg frames!!\n", ioc->name));
1573                 retval = FAILED;
1574                 mpt_clear_taskmgmt_in_progress_flag(ioc);
1575                 goto out;
1576         }
1577         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
1578                         ioc->name, mf));
1579
1580         /* Format the Request
1581          */
1582         pScsiTm = (SCSITaskMgmt_t *) mf;
1583         pScsiTm->TargetID = id;
1584         pScsiTm->Bus = channel;
1585         pScsiTm->ChainOffset = 0;
1586         pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1587
1588         pScsiTm->Reserved = 0;
1589         pScsiTm->TaskType = type;
1590         pScsiTm->Reserved1 = 0;
1591         pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1592                     ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1593
1594         int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1595
1596         for (ii=0; ii < 7; ii++)
1597                 pScsiTm->Reserved2[ii] = 0;
1598
1599         pScsiTm->TaskMsgContext = ctx2abort;
1600
1601         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) "
1602                 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort,
1603                 type, timeout));
1604
1605         DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1606
1607         INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1608         time_count = jiffies;
1609         if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1610             (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1611                 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1612         else {
1613                 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1614                         sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1615                 if (retval) {
1616                         dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1617                                 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n",
1618                                 ioc->name, mf, retval));
1619                         mpt_free_msg_frame(ioc, mf);
1620                         mpt_clear_taskmgmt_in_progress_flag(ioc);
1621                         goto out;
1622                 }
1623         }
1624
1625         timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
1626                 timeout*HZ);
1627         if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
1628                 retval = FAILED;
1629                 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
1630                     "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf));
1631                 mpt_clear_taskmgmt_in_progress_flag(ioc);
1632                 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
1633                         goto out;
1634                 issue_hard_reset = 1;
1635                 goto out;
1636         }
1637
1638         retval = mptscsih_taskmgmt_reply(ioc, type,
1639             (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply);
1640
1641         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1642             "TaskMgmt completed (%d seconds)\n",
1643             ioc->name, jiffies_to_msecs(jiffies - time_count)/1000));
1644
1645  out:
1646
1647         CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1648         if (issue_hard_reset) {
1649                 printk(MYIOC_s_WARN_FMT
1650                        "Issuing Reset from %s!! doorbell=0x%08x\n",
1651                        ioc->name, __func__, mpt_GetIocState(ioc, 0));
1652                 retval = (ioc->bus_type == SAS) ?
1653                         mpt_HardResetHandler(ioc, CAN_SLEEP) :
1654                         mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1655                 mpt_free_msg_frame(ioc, mf);
1656         }
1657
1658         retval = (retval == 0) ? 0 : FAILED;
1659         mutex_unlock(&ioc->taskmgmt_cmds.mutex);
1660         return retval;
1661 }
1662 EXPORT_SYMBOL(mptscsih_IssueTaskMgmt);
1663
1664 static int
1665 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1666 {
1667         switch (ioc->bus_type) {
1668         case FC:
1669                 return 40;
1670         case SAS:
1671                 return 30;
1672         case SPI:
1673         default:
1674                 return 10;
1675         }
1676 }
1677
1678 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1679 /**
1680  *      mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1681  *      @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1682  *
1683  *      (linux scsi_host_template.eh_abort_handler routine)
1684  *
1685  *      Returns SUCCESS or FAILED.
1686  **/
1687 int
1688 mptscsih_abort(struct scsi_cmnd * SCpnt)
1689 {
1690         MPT_SCSI_HOST   *hd;
1691         MPT_FRAME_HDR   *mf;
1692         u32              ctx2abort;
1693         int              scpnt_idx;
1694         int              retval;
1695         VirtDevice       *vdevice;
1696         MPT_ADAPTER     *ioc;
1697
1698         /* If we can't locate our host adapter structure, return FAILED status.
1699          */
1700         if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1701                 SCpnt->result = DID_RESET << 16;
1702                 SCpnt->scsi_done(SCpnt);
1703                 printk(KERN_ERR MYNAM ": task abort: "
1704                     "can't locate host! (sc=%p)\n", SCpnt);
1705                 return FAILED;
1706         }
1707
1708         ioc = hd->ioc;
1709         printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1710                ioc->name, SCpnt);
1711         scsi_print_command(SCpnt);
1712
1713         vdevice = SCpnt->device->hostdata;
1714         if (!vdevice || !vdevice->vtarget) {
1715                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1716                     "task abort: device has been deleted (sc=%p)\n",
1717                     ioc->name, SCpnt));
1718                 SCpnt->result = DID_NO_CONNECT << 16;
1719                 SCpnt->scsi_done(SCpnt);
1720                 retval = SUCCESS;
1721                 goto out;
1722         }
1723
1724         /* Task aborts are not supported for hidden raid components.
1725          */
1726         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1727                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1728                     "task abort: hidden raid component (sc=%p)\n",
1729                     ioc->name, SCpnt));
1730                 SCpnt->result = DID_RESET << 16;
1731                 retval = FAILED;
1732                 goto out;
1733         }
1734
1735         /* Task aborts are not supported for volumes.
1736          */
1737         if (vdevice->vtarget->raidVolume) {
1738                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1739                     "task abort: raid volume (sc=%p)\n",
1740                     ioc->name, SCpnt));
1741                 SCpnt->result = DID_RESET << 16;
1742                 retval = FAILED;
1743                 goto out;
1744         }
1745
1746         /* Find this command
1747          */
1748         if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1749                 /* Cmd not found in ScsiLookup.
1750                  * Do OS callback.
1751                  */
1752                 SCpnt->result = DID_RESET << 16;
1753                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1754                    "Command not in the active list! (sc=%p)\n", ioc->name,
1755                    SCpnt));
1756                 retval = SUCCESS;
1757                 goto out;
1758         }
1759
1760         if (ioc->timeouts < -1)
1761                 ioc->timeouts++;
1762
1763         if (mpt_fwfault_debug)
1764                 mpt_halt_firmware(ioc);
1765
1766         /* Most important!  Set TaskMsgContext to SCpnt's MsgContext!
1767          * (the IO to be ABORT'd)
1768          *
1769          * NOTE: Since we do not byteswap MsgContext, we do not
1770          *       swap it here either.  It is an opaque cookie to
1771          *       the controller, so it does not matter. -DaveM
1772          */
1773         mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1774         ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1775         retval = mptscsih_IssueTaskMgmt(hd,
1776                          MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1777                          vdevice->vtarget->channel,
1778                          vdevice->vtarget->id, vdevice->lun,
1779                          ctx2abort, mptscsih_get_tm_timeout(ioc));
1780
1781         if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) {
1782                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1783                     "task abort: command still in active list! (sc=%p)\n",
1784                     ioc->name, SCpnt));
1785                 retval = FAILED;
1786         } else {
1787                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1788                     "task abort: command cleared from active list! (sc=%p)\n",
1789                     ioc->name, SCpnt));
1790                 retval = SUCCESS;
1791         }
1792
1793  out:
1794         printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n",
1795             ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval,
1796             SCpnt);
1797
1798         return retval;
1799 }
1800
1801 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1802 /**
1803  *      mptscsih_dev_reset - Perform a SCSI TARGET_RESET!  new_eh variant
1804  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1805  *
1806  *      (linux scsi_host_template.eh_dev_reset_handler routine)
1807  *
1808  *      Returns SUCCESS or FAILED.
1809  **/
1810 int
1811 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1812 {
1813         MPT_SCSI_HOST   *hd;
1814         int              retval;
1815         VirtDevice       *vdevice;
1816         MPT_ADAPTER     *ioc;
1817
1818         /* If we can't locate our host adapter structure, return FAILED status.
1819          */
1820         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1821                 printk(KERN_ERR MYNAM ": target reset: "
1822                    "Can't locate host! (sc=%p)\n", SCpnt);
1823                 return FAILED;
1824         }
1825
1826         ioc = hd->ioc;
1827         printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1828                ioc->name, SCpnt);
1829         scsi_print_command(SCpnt);
1830
1831         vdevice = SCpnt->device->hostdata;
1832         if (!vdevice || !vdevice->vtarget) {
1833                 retval = 0;
1834                 goto out;
1835         }
1836
1837         /* Target reset to hidden raid component is not supported
1838          */
1839         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1840                 retval = FAILED;
1841                 goto out;
1842         }
1843
1844         retval = mptscsih_IssueTaskMgmt(hd,
1845                                 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1846                                 vdevice->vtarget->channel,
1847                                 vdevice->vtarget->id, 0, 0,
1848                                 mptscsih_get_tm_timeout(ioc));
1849
1850  out:
1851         printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1852             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1853
1854         if (retval == 0)
1855                 return SUCCESS;
1856         else
1857                 return FAILED;
1858 }
1859
1860
1861 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1862 /**
1863  *      mptscsih_bus_reset - Perform a SCSI BUS_RESET!  new_eh variant
1864  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1865  *
1866  *      (linux scsi_host_template.eh_bus_reset_handler routine)
1867  *
1868  *      Returns SUCCESS or FAILED.
1869  **/
1870 int
1871 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1872 {
1873         MPT_SCSI_HOST   *hd;
1874         int              retval;
1875         VirtDevice       *vdevice;
1876         MPT_ADAPTER     *ioc;
1877
1878         /* If we can't locate our host adapter structure, return FAILED status.
1879          */
1880         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1881                 printk(KERN_ERR MYNAM ": bus reset: "
1882                    "Can't locate host! (sc=%p)\n", SCpnt);
1883                 return FAILED;
1884         }
1885
1886         ioc = hd->ioc;
1887         printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1888                ioc->name, SCpnt);
1889         scsi_print_command(SCpnt);
1890
1891         if (ioc->timeouts < -1)
1892                 ioc->timeouts++;
1893
1894         vdevice = SCpnt->device->hostdata;
1895         if (!vdevice || !vdevice->vtarget)
1896                 return SUCCESS;
1897         retval = mptscsih_IssueTaskMgmt(hd,
1898                                         MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1899                                         vdevice->vtarget->channel, 0, 0, 0,
1900                                         mptscsih_get_tm_timeout(ioc));
1901
1902         printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1903             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1904
1905         if (retval == 0)
1906                 return SUCCESS;
1907         else
1908                 return FAILED;
1909 }
1910
1911 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1912 /**
1913  *      mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1914  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1915  *
1916  *      (linux scsi_host_template.eh_host_reset_handler routine)
1917  *
1918  *      Returns SUCCESS or FAILED.
1919  */
1920 int
1921 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1922 {
1923         MPT_SCSI_HOST *  hd;
1924         int              status = SUCCESS;
1925         MPT_ADAPTER     *ioc;
1926         int             retval;
1927
1928         /*  If we can't locate the host to reset, then we failed. */
1929         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1930                 printk(KERN_ERR MYNAM ": host reset: "
1931                     "Can't locate host! (sc=%p)\n", SCpnt);
1932                 return FAILED;
1933         }
1934
1935         /* make sure we have no outstanding commands at this stage */
1936         mptscsih_flush_running_cmds(hd);
1937
1938         ioc = hd->ioc;
1939         printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
1940             ioc->name, SCpnt);
1941
1942         /*  If our attempts to reset the host failed, then return a failed
1943          *  status.  The host will be taken off line by the SCSI mid-layer.
1944          */
1945     retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1946         if (retval < 0)
1947                 status = FAILED;
1948         else
1949                 status = SUCCESS;
1950
1951         printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
1952             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1953
1954         return status;
1955 }
1956
1957 static int
1958 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
1959         SCSITaskMgmtReply_t *pScsiTmReply)
1960 {
1961         u16                      iocstatus;
1962         u32                      termination_count;
1963         int                      retval;
1964
1965         if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
1966                 retval = FAILED;
1967                 goto out;
1968         }
1969
1970         DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
1971
1972         iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
1973         termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
1974
1975         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1976             "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n"
1977             "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n"
1978             "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus,
1979             pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus),
1980             le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode,
1981             termination_count));
1982
1983         if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
1984             pScsiTmReply->ResponseCode)
1985                 mptscsih_taskmgmt_response_code(ioc,
1986                     pScsiTmReply->ResponseCode);
1987
1988         if (iocstatus == MPI_IOCSTATUS_SUCCESS) {
1989                 retval = 0;
1990                 goto out;
1991         }
1992
1993         retval = FAILED;
1994         if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1995                 if (termination_count == 1)
1996                         retval = 0;
1997                 goto out;
1998         }
1999
2000         if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
2001            iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
2002                 retval = 0;
2003
2004  out:
2005         return retval;
2006 }
2007
2008 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2009 void
2010 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2011 {
2012         char *desc;
2013
2014         switch (response_code) {
2015         case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2016                 desc = "The task completed.";
2017                 break;
2018         case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2019                 desc = "The IOC received an invalid frame status.";
2020                 break;
2021         case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2022                 desc = "The task type is not supported.";
2023                 break;
2024         case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2025                 desc = "The requested task failed.";
2026                 break;
2027         case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2028                 desc = "The task completed successfully.";
2029                 break;
2030         case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2031                 desc = "The LUN request is invalid.";
2032                 break;
2033         case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2034                 desc = "The task is in the IOC queue and has not been sent to target.";
2035                 break;
2036         default:
2037                 desc = "unknown";
2038                 break;
2039         }
2040         printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2041                 ioc->name, response_code, desc);
2042 }
2043 EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
2044
2045 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2046 /**
2047  *      mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2048  *      @ioc: Pointer to MPT_ADAPTER structure
2049  *      @mf: Pointer to SCSI task mgmt request frame
2050  *      @mr: Pointer to SCSI task mgmt reply frame
2051  *
2052  *      This routine is called from mptbase.c::mpt_interrupt() at the completion
2053  *      of any SCSI task management request.
2054  *      This routine is registered with the MPT (base) driver at driver
2055  *      load/init time via the mpt_register() API call.
2056  *
2057  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2058  **/
2059 int
2060 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf,
2061         MPT_FRAME_HDR *mr)
2062 {
2063         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2064                 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr));
2065
2066         ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2067
2068         if (!mr)
2069                 goto out;
2070
2071         ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2072         memcpy(ioc->taskmgmt_cmds.reply, mr,
2073             min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
2074  out:
2075         if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
2076                 mpt_clear_taskmgmt_in_progress_flag(ioc);
2077                 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2078                 complete(&ioc->taskmgmt_cmds.done);
2079                 if (ioc->bus_type == SAS)
2080                         ioc->schedule_target_reset(ioc);
2081                 return 1;
2082         }
2083         return 0;
2084 }
2085
2086 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2087 /*
2088  *      This is anyones guess quite frankly.
2089  */
2090 int
2091 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2092                 sector_t capacity, int geom[])
2093 {
2094         int             heads;
2095         int             sectors;
2096         sector_t        cylinders;
2097         ulong           dummy;
2098
2099         heads = 64;
2100         sectors = 32;
2101
2102         dummy = heads * sectors;
2103         cylinders = capacity;
2104         sector_div(cylinders,dummy);
2105
2106         /*
2107          * Handle extended translation size for logical drives
2108          * > 1Gb
2109          */
2110         if ((ulong)capacity >= 0x200000) {
2111                 heads = 255;
2112                 sectors = 63;
2113                 dummy = heads * sectors;
2114                 cylinders = capacity;
2115                 sector_div(cylinders,dummy);
2116         }
2117
2118         /* return result */
2119         geom[0] = heads;
2120         geom[1] = sectors;
2121         geom[2] = cylinders;
2122
2123         return 0;
2124 }
2125
2126 /* Search IOC page 3 to determine if this is hidden physical disk
2127  *
2128  */
2129 int
2130 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2131 {
2132         struct inactive_raid_component_info *component_info;
2133         int i, j;
2134         RaidPhysDiskPage1_t *phys_disk;
2135         int rc = 0;
2136         int num_paths;
2137
2138         if (!ioc->raid_data.pIocPg3)
2139                 goto out;
2140         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2141                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2142                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2143                         rc = 1;
2144                         goto out;
2145                 }
2146         }
2147
2148         if (ioc->bus_type != SAS)
2149                 goto out;
2150
2151         /*
2152          * Check if dual path
2153          */
2154         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2155                 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2156                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2157                 if (num_paths < 2)
2158                         continue;
2159                 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2160                    (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2161                 if (!phys_disk)
2162                         continue;
2163                 if ((mpt_raid_phys_disk_pg1(ioc,
2164                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2165                     phys_disk))) {
2166                         kfree(phys_disk);
2167                         continue;
2168                 }
2169                 for (j = 0; j < num_paths; j++) {
2170                         if ((phys_disk->Path[j].Flags &
2171                             MPI_RAID_PHYSDISK1_FLAG_INVALID))
2172                                 continue;
2173                         if ((phys_disk->Path[j].Flags &
2174                             MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2175                                 continue;
2176                         if ((id == phys_disk->Path[j].PhysDiskID) &&
2177                             (channel == phys_disk->Path[j].PhysDiskBus)) {
2178                                 rc = 1;
2179                                 kfree(phys_disk);
2180                                 goto out;
2181                         }
2182                 }
2183                 kfree(phys_disk);
2184         }
2185
2186
2187         /*
2188          * Check inactive list for matching phys disks
2189          */
2190         if (list_empty(&ioc->raid_data.inactive_list))
2191                 goto out;
2192
2193         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2194         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2195             list) {
2196                 if ((component_info->d.PhysDiskID == id) &&
2197                     (component_info->d.PhysDiskBus == channel))
2198                         rc = 1;
2199         }
2200         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2201
2202  out:
2203         return rc;
2204 }
2205 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2206
2207 u8
2208 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2209 {
2210         struct inactive_raid_component_info *component_info;
2211         int i, j;
2212         RaidPhysDiskPage1_t *phys_disk;
2213         int rc = -ENXIO;
2214         int num_paths;
2215
2216         if (!ioc->raid_data.pIocPg3)
2217                 goto out;
2218         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2219                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2220                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2221                         rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2222                         goto out;
2223                 }
2224         }
2225
2226         if (ioc->bus_type != SAS)
2227                 goto out;
2228
2229         /*
2230          * Check if dual path
2231          */
2232         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2233                 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2234                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2235                 if (num_paths < 2)
2236                         continue;
2237                 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2238                    (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2239                 if (!phys_disk)
2240                         continue;
2241                 if ((mpt_raid_phys_disk_pg1(ioc,
2242                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2243                     phys_disk))) {
2244                         kfree(phys_disk);
2245                         continue;
2246                 }
2247                 for (j = 0; j < num_paths; j++) {
2248                         if ((phys_disk->Path[j].Flags &
2249                             MPI_RAID_PHYSDISK1_FLAG_INVALID))
2250                                 continue;
2251                         if ((phys_disk->Path[j].Flags &
2252                             MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2253                                 continue;
2254                         if ((id == phys_disk->Path[j].PhysDiskID) &&
2255                             (channel == phys_disk->Path[j].PhysDiskBus)) {
2256                                 rc = phys_disk->PhysDiskNum;
2257                                 kfree(phys_disk);
2258                                 goto out;
2259                         }
2260                 }
2261                 kfree(phys_disk);
2262         }
2263
2264         /*
2265          * Check inactive list for matching phys disks
2266          */
2267         if (list_empty(&ioc->raid_data.inactive_list))
2268                 goto out;
2269
2270         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2271         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2272             list) {
2273                 if ((component_info->d.PhysDiskID == id) &&
2274                     (component_info->d.PhysDiskBus == channel))
2275                         rc = component_info->d.PhysDiskNum;
2276         }
2277         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2278
2279  out:
2280         return rc;
2281 }
2282 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2283
2284 /*
2285  *      OS entry point to allow for host driver to free allocated memory
2286  *      Called if no device present or device being unloaded
2287  */
2288 void
2289 mptscsih_slave_destroy(struct scsi_device *sdev)
2290 {
2291         struct Scsi_Host        *host = sdev->host;
2292         MPT_SCSI_HOST           *hd = shost_priv(host);
2293         VirtTarget              *vtarget;
2294         VirtDevice              *vdevice;
2295         struct scsi_target      *starget;
2296
2297         starget = scsi_target(sdev);
2298         vtarget = starget->hostdata;
2299         vdevice = sdev->hostdata;
2300         if (!vdevice)
2301                 return;
2302
2303         mptscsih_search_running_cmds(hd, vdevice);
2304         vtarget->num_luns--;
2305         mptscsih_synchronize_cache(hd, vdevice);
2306         kfree(vdevice);
2307         sdev->hostdata = NULL;
2308 }
2309
2310 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2311 /*
2312  *      mptscsih_change_queue_depth - This function will set a devices queue depth
2313  *      @sdev: per scsi_device pointer
2314  *      @qdepth: requested queue depth
2315  *
2316  *      Adding support for new 'change_queue_depth' api.
2317 */
2318 int
2319 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
2320 {
2321         MPT_SCSI_HOST           *hd = shost_priv(sdev->host);
2322         VirtTarget              *vtarget;
2323         struct scsi_target      *starget;
2324         int                     max_depth;
2325         MPT_ADAPTER             *ioc = hd->ioc;
2326
2327         starget = scsi_target(sdev);
2328         vtarget = starget->hostdata;
2329
2330         if (ioc->bus_type == SPI) {
2331                 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2332                         max_depth = 1;
2333                 else if (sdev->type == TYPE_DISK &&
2334                          vtarget->minSyncFactor <= MPT_ULTRA160)
2335                         max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2336                 else
2337                         max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2338         } else
2339                  max_depth = ioc->sh->can_queue;
2340
2341         if (!sdev->tagged_supported)
2342                 max_depth = 1;
2343
2344         if (qdepth > max_depth)
2345                 qdepth = max_depth;
2346
2347         return scsi_change_queue_depth(sdev, qdepth);
2348 }
2349
2350 /*
2351  *      OS entry point to adjust the queue_depths on a per-device basis.
2352  *      Called once per device the bus scan. Use it to force the queue_depth
2353  *      member to 1 if a device does not support Q tags.
2354  *      Return non-zero if fails.
2355  */
2356 int
2357 mptscsih_slave_configure(struct scsi_device *sdev)
2358 {
2359         struct Scsi_Host        *sh = sdev->host;
2360         VirtTarget              *vtarget;
2361         VirtDevice              *vdevice;
2362         struct scsi_target      *starget;
2363         MPT_SCSI_HOST           *hd = shost_priv(sh);
2364         MPT_ADAPTER             *ioc = hd->ioc;
2365
2366         starget = scsi_target(sdev);
2367         vtarget = starget->hostdata;
2368         vdevice = sdev->hostdata;
2369
2370         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2371                 "device @ %p, channel=%d, id=%d, lun=%llu\n",
2372                 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2373         if (ioc->bus_type == SPI)
2374                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2375                     "sdtr %d wdtr %d ppr %d inq length=%d\n",
2376                     ioc->name, sdev->sdtr, sdev->wdtr,
2377                     sdev->ppr, sdev->inquiry_len));
2378
2379         vdevice->configured_lun = 1;
2380
2381         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2382                 "Queue depth=%d, tflags=%x\n",
2383                 ioc->name, sdev->queue_depth, vtarget->tflags));
2384
2385         if (ioc->bus_type == SPI)
2386                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2387                     "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2388                     ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2389                     vtarget->minSyncFactor));
2390
2391         mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
2392         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2393                 "tagged %d, simple %d\n",
2394                 ioc->name,sdev->tagged_supported, sdev->simple_tags));
2395
2396         blk_queue_dma_alignment (sdev->request_queue, 512 - 1);
2397
2398         return 0;
2399 }
2400
2401 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2402 /*
2403  *  Private routines...
2404  */
2405
2406 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2407 /* Utility function to copy sense data from the scsi_cmnd buffer
2408  * to the FC and SCSI target structures.
2409  *
2410  */
2411 static void
2412 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2413 {
2414         VirtDevice      *vdevice;
2415         SCSIIORequest_t *pReq;
2416         u32              sense_count = le32_to_cpu(pScsiReply->SenseCount);
2417         MPT_ADAPTER     *ioc = hd->ioc;
2418
2419         /* Get target structure
2420          */
2421         pReq = (SCSIIORequest_t *) mf;
2422         vdevice = sc->device->hostdata;
2423
2424         if (sense_count) {
2425                 u8 *sense_data;
2426                 int req_index;
2427
2428                 /* Copy the sense received into the scsi command block. */
2429                 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2430                 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2431                 memcpy(sc->sense_buffer, sense_data, MPT_SENSE_BUFFER_ALLOC);
2432
2433                 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2434                  */
2435                 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2436                         if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2437                                 int idx;
2438
2439                                 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2440                                 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2441                                 ioc->events[idx].eventContext = ioc->eventContext;
2442
2443                                 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2444                                         (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2445                                         (sc->device->channel << 8) | sc->device->id;
2446
2447                                 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2448
2449                                 ioc->eventContext++;
2450                                 if (ioc->pcidev->vendor ==
2451                                     PCI_VENDOR_ID_IBM) {
2452                                         mptscsih_issue_sep_command(ioc,
2453                                             vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2454                                         vdevice->vtarget->tflags |=
2455                                             MPT_TARGET_FLAGS_LED_ON;
2456                                 }
2457                         }
2458                 }
2459         } else {
2460                 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2461                                 ioc->name));
2462         }
2463 }
2464
2465 /**
2466  * mptscsih_get_scsi_lookup - retrieves scmd entry
2467  * @ioc: Pointer to MPT_ADAPTER structure
2468  * @i: index into the array
2469  *
2470  * Returns the scsi_cmd pointer
2471  */
2472 struct scsi_cmnd *
2473 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2474 {
2475         unsigned long   flags;
2476         struct scsi_cmnd *scmd;
2477
2478         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2479         scmd = ioc->ScsiLookup[i];
2480         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2481
2482         return scmd;
2483 }
2484 EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
2485
2486 /**
2487  * mptscsih_getclear_scsi_lookup -  retrieves and clears scmd entry from ScsiLookup[] array list
2488  * @ioc: Pointer to MPT_ADAPTER structure
2489  * @i: index into the array
2490  *
2491  * Returns the scsi_cmd pointer
2492  *
2493  **/
2494 static struct scsi_cmnd *
2495 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2496 {
2497         unsigned long   flags;
2498         struct scsi_cmnd *scmd;
2499
2500         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2501         scmd = ioc->ScsiLookup[i];
2502         ioc->ScsiLookup[i] = NULL;
2503         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2504
2505         return scmd;
2506 }
2507
2508 /**
2509  * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list
2510  *
2511  * @ioc: Pointer to MPT_ADAPTER structure
2512  * @i: index into the array
2513  * @scmd: scsi_cmnd pointer
2514  *
2515  **/
2516 static void
2517 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2518 {
2519         unsigned long   flags;
2520
2521         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2522         ioc->ScsiLookup[i] = scmd;
2523         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2524 }
2525
2526 /**
2527  * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2528  * @ioc: Pointer to MPT_ADAPTER structure
2529  * @sc: scsi_cmnd pointer
2530  */
2531 static int
2532 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2533 {
2534         unsigned long   flags;
2535         int i, index=-1;
2536
2537         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2538         for (i = 0; i < ioc->req_depth; i++) {
2539                 if (ioc->ScsiLookup[i] == sc) {
2540                         index = i;
2541                         goto out;
2542                 }
2543         }
2544
2545  out:
2546         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2547         return index;
2548 }
2549
2550 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2551 int
2552 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2553 {
2554         MPT_SCSI_HOST   *hd;
2555
2556         if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2557                 return 0;
2558
2559         hd = shost_priv(ioc->sh);
2560         switch (reset_phase) {
2561         case MPT_IOC_SETUP_RESET:
2562                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2563                     "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
2564                 break;
2565         case MPT_IOC_PRE_RESET:
2566                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2567                     "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
2568                 mptscsih_flush_running_cmds(hd);
2569                 break;
2570         case MPT_IOC_POST_RESET:
2571                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2572                     "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
2573                 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) {
2574                         ioc->internal_cmds.status |=
2575                                 MPT_MGMT_STATUS_DID_IOCRESET;
2576                         complete(&ioc->internal_cmds.done);
2577                 }
2578                 break;
2579         default:
2580                 break;
2581         }
2582         return 1;               /* currently means nothing really */
2583 }
2584
2585 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2586 int
2587 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2588 {
2589         u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2590
2591         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2592                 "MPT event (=%02Xh) routed to SCSI host driver!\n",
2593                 ioc->name, event));
2594
2595         if ((event == MPI_EVENT_IOC_BUS_RESET ||
2596             event == MPI_EVENT_EXT_BUS_RESET) &&
2597             (ioc->bus_type == SPI) && (ioc->soft_resets < -1))
2598                         ioc->soft_resets++;
2599
2600         return 1;               /* currently means nothing really */
2601 }
2602
2603 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2604 /*
2605  *  Bus Scan and Domain Validation functionality ...
2606  */
2607
2608 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2609 /*
2610  *      mptscsih_scandv_complete - Scan and DV callback routine registered
2611  *      to Fustion MPT (base) driver.
2612  *
2613  *      @ioc: Pointer to MPT_ADAPTER structure
2614  *      @mf: Pointer to original MPT request frame
2615  *      @mr: Pointer to MPT reply frame (NULL if TurboReply)
2616  *
2617  *      This routine is called from mpt.c::mpt_interrupt() at the completion
2618  *      of any SCSI IO request.
2619  *      This routine is registered with the Fusion MPT (base) driver at driver
2620  *      load/init time via the mpt_register() API call.
2621  *
2622  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2623  *
2624  *      Remark: Sets a completion code and (possibly) saves sense data
2625  *      in the IOC member localReply structure.
2626  *      Used ONLY for DV and other internal commands.
2627  */
2628 int
2629 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2630                                 MPT_FRAME_HDR *reply)
2631 {
2632         SCSIIORequest_t *pReq;
2633         SCSIIOReply_t   *pReply;
2634         u8               cmd;
2635         u16              req_idx;
2636         u8      *sense_data;
2637         int              sz;
2638
2639         ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2640         ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD;
2641         if (!reply)
2642                 goto out;
2643
2644         pReply = (SCSIIOReply_t *) reply;
2645         pReq = (SCSIIORequest_t *) req;
2646         ioc->internal_cmds.completion_code =
2647             mptscsih_get_completion_code(ioc, req, reply);
2648         ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2649         memcpy(ioc->internal_cmds.reply, reply,
2650             min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength));
2651         cmd = reply->u.hdr.Function;
2652         if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
2653             (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) &&
2654             (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
2655                 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
2656                 sense_data = ((u8 *)ioc->sense_buf_pool +
2657                     (req_idx * MPT_SENSE_BUFFER_ALLOC));
2658                 sz = min_t(int, pReq->SenseBufferLength,
2659                     MPT_SENSE_BUFFER_ALLOC);
2660                 memcpy(ioc->internal_cmds.sense, sense_data, sz);
2661         }
2662  out:
2663         if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING))
2664                 return 0;
2665         ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2666         complete(&ioc->internal_cmds.done);
2667         return 1;
2668 }
2669
2670
2671 /**
2672  *      mptscsih_get_completion_code - get completion code from MPT request
2673  *      @ioc: Pointer to MPT_ADAPTER structure
2674  *      @req: Pointer to original MPT request frame
2675  *      @reply: Pointer to MPT reply frame (NULL if TurboReply)
2676  *
2677  **/
2678 static int
2679 mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2680                                 MPT_FRAME_HDR *reply)
2681 {
2682         SCSIIOReply_t   *pReply;
2683         MpiRaidActionReply_t *pr;
2684         u8               scsi_status;
2685         u16              status;
2686         int              completion_code;
2687
2688         pReply = (SCSIIOReply_t *)reply;
2689         status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2690         scsi_status = pReply->SCSIStatus;
2691
2692         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2693             "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh,"
2694             "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState,
2695             scsi_status, le32_to_cpu(pReply->IOCLogInfo)));
2696
2697         switch (status) {
2698
2699         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
2700                 completion_code = MPT_SCANDV_SELECTION_TIMEOUT;
2701                 break;
2702
2703         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
2704         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
2705         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
2706         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
2707                 completion_code = MPT_SCANDV_DID_RESET;
2708                 break;
2709
2710         case MPI_IOCSTATUS_BUSY:
2711         case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
2712                 completion_code = MPT_SCANDV_BUSY;
2713                 break;
2714
2715         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
2716         case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
2717         case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
2718                 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2719                         completion_code = MPT_SCANDV_GOOD;
2720                 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2721                         pr = (MpiRaidActionReply_t *)reply;
2722                         if (le16_to_cpu(pr->ActionStatus) ==
2723                                 MPI_RAID_ACTION_ASTATUS_SUCCESS)
2724                                 completion_code = MPT_SCANDV_GOOD;
2725                         else
2726                                 completion_code = MPT_SCANDV_SOME_ERROR;
2727                 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)
2728                         completion_code = MPT_SCANDV_SENSE;
2729                 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2730                         if (req->u.scsireq.CDB[0] == INQUIRY)
2731                                 completion_code = MPT_SCANDV_ISSUE_SENSE;
2732                         else
2733                                 completion_code = MPT_SCANDV_DID_RESET;
2734                 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2735                         completion_code = MPT_SCANDV_DID_RESET;
2736                 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2737                         completion_code = MPT_SCANDV_DID_RESET;
2738                 else if (scsi_status == MPI_SCSI_STATUS_BUSY)
2739                         completion_code = MPT_SCANDV_BUSY;
2740                 else
2741                         completion_code = MPT_SCANDV_GOOD;
2742                 break;
2743
2744         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
2745                 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2746                         completion_code = MPT_SCANDV_DID_RESET;
2747                 else
2748                         completion_code = MPT_SCANDV_SOME_ERROR;
2749                 break;
2750         default:
2751                 completion_code = MPT_SCANDV_SOME_ERROR;
2752                 break;
2753
2754         }       /* switch(status) */
2755
2756         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2757             "  completionCode set to %08xh\n", ioc->name, completion_code));
2758         return completion_code;
2759 }
2760
2761 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2762 /**
2763  *      mptscsih_do_cmd - Do internal command.
2764  *      @hd: MPT_SCSI_HOST pointer
2765  *      @io: INTERNAL_CMD pointer.
2766  *
2767  *      Issue the specified internally generated command and do command
2768  *      specific cleanup. For bus scan / DV only.
2769  *      NOTES: If command is Inquiry and status is good,
2770  *      initialize a target structure, save the data
2771  *
2772  *      Remark: Single threaded access only.
2773  *
2774  *      Return:
2775  *              < 0 if an illegal command or no resources
2776  *
2777  *                 0 if good
2778  *
2779  *               > 0 if command complete but some type of completion error.
2780  */
2781 static int
2782 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2783 {
2784         MPT_FRAME_HDR   *mf;
2785         SCSIIORequest_t *pScsiReq;
2786         int              my_idx, ii, dir;
2787         int              timeout;
2788         char             cmdLen;
2789         char             CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2790         u8               cmd = io->cmd;
2791         MPT_ADAPTER *ioc = hd->ioc;
2792         int              ret = 0;
2793         unsigned long    timeleft;
2794         unsigned long    flags;
2795
2796         /* don't send internal command during diag reset */
2797         spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
2798         if (ioc->ioc_reset_in_progress) {
2799                 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2800                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2801                         "%s: busy with host reset\n", ioc->name, __func__));
2802                 return MPT_SCANDV_BUSY;
2803         }
2804         spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2805
2806         mutex_lock(&ioc->internal_cmds.mutex);
2807
2808         /* Set command specific information
2809          */
2810         switch (cmd) {
2811         case INQUIRY:
2812                 cmdLen = 6;
2813                 dir = MPI_SCSIIO_CONTROL_READ;
2814                 CDB[0] = cmd;
2815                 CDB[4] = io->size;
2816                 timeout = 10;
2817                 break;
2818
2819         case TEST_UNIT_READY:
2820                 cmdLen = 6;
2821                 dir = MPI_SCSIIO_CONTROL_READ;
2822                 timeout = 10;
2823                 break;
2824
2825         case START_STOP:
2826                 cmdLen = 6;
2827                 dir = MPI_SCSIIO_CONTROL_READ;
2828                 CDB[0] = cmd;
2829                 CDB[4] = 1;     /*Spin up the disk */
2830                 timeout = 15;
2831                 break;
2832
2833         case REQUEST_SENSE:
2834                 cmdLen = 6;
2835                 CDB[0] = cmd;
2836                 CDB[4] = io->size;
2837                 dir = MPI_SCSIIO_CONTROL_READ;
2838                 timeout = 10;
2839                 break;
2840
2841         case READ_BUFFER:
2842                 cmdLen = 10;
2843                 dir = MPI_SCSIIO_CONTROL_READ;
2844                 CDB[0] = cmd;
2845                 if (io->flags & MPT_ICFLAG_ECHO) {
2846                         CDB[1] = 0x0A;
2847                 } else {
2848                         CDB[1] = 0x02;
2849                 }
2850
2851                 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2852                         CDB[1] |= 0x01;
2853                 }
2854                 CDB[6] = (io->size >> 16) & 0xFF;
2855                 CDB[7] = (io->size >>  8) & 0xFF;
2856                 CDB[8] = io->size & 0xFF;
2857                 timeout = 10;
2858                 break;
2859
2860         case WRITE_BUFFER:
2861                 cmdLen = 10;
2862                 dir = MPI_SCSIIO_CONTROL_WRITE;
2863                 CDB[0] = cmd;
2864                 if (io->flags & MPT_ICFLAG_ECHO) {
2865                         CDB[1] = 0x0A;
2866                 } else {
2867                         CDB[1] = 0x02;
2868                 }
2869                 CDB[6] = (io->size >> 16) & 0xFF;
2870                 CDB[7] = (io->size >>  8) & 0xFF;
2871                 CDB[8] = io->size & 0xFF;
2872                 timeout = 10;
2873                 break;
2874
2875         case RESERVE:
2876                 cmdLen = 6;
2877                 dir = MPI_SCSIIO_CONTROL_READ;
2878                 CDB[0] = cmd;
2879                 timeout = 10;
2880                 break;
2881
2882         case RELEASE:
2883                 cmdLen = 6;
2884                 dir = MPI_SCSIIO_CONTROL_READ;
2885                 CDB[0] = cmd;
2886                 timeout = 10;
2887                 break;
2888
2889         case SYNCHRONIZE_CACHE:
2890                 cmdLen = 10;
2891                 dir = MPI_SCSIIO_CONTROL_READ;
2892                 CDB[0] = cmd;
2893 //              CDB[1] = 0x02;  /* set immediate bit */
2894                 timeout = 10;
2895                 break;
2896
2897         default:
2898                 /* Error Case */
2899                 ret = -EFAULT;
2900                 goto out;
2901         }
2902
2903         /* Get and Populate a free Frame
2904          * MsgContext set in mpt_get_msg_frame call
2905          */
2906         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
2907                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n",
2908                     ioc->name, __func__));
2909                 ret = MPT_SCANDV_BUSY;
2910                 goto out;
2911         }
2912
2913         pScsiReq = (SCSIIORequest_t *) mf;
2914
2915         /* Get the request index */
2916         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2917         ADD_INDEX_LOG(my_idx); /* for debug */
2918
2919         if (io->flags & MPT_ICFLAG_PHYS_DISK) {
2920                 pScsiReq->TargetID = io->physDiskNum;
2921                 pScsiReq->Bus = 0;
2922                 pScsiReq->ChainOffset = 0;
2923                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2924         } else {
2925                 pScsiReq->TargetID = io->id;
2926                 pScsiReq->Bus = io->channel;
2927                 pScsiReq->ChainOffset = 0;
2928                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2929         }
2930
2931         pScsiReq->CDBLength = cmdLen;
2932         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
2933
2934         pScsiReq->Reserved = 0;
2935
2936         pScsiReq->MsgFlags = mpt_msg_flags(ioc);
2937         /* MsgContext set in mpt_get_msg_fram call  */
2938
2939         int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
2940
2941         if (io->flags & MPT_ICFLAG_TAGGED_CMD)
2942                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
2943         else
2944                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2945
2946         if (cmd == REQUEST_SENSE) {
2947                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2948                 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2949                     "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd));
2950         }
2951
2952         for (ii = 0; ii < 16; ii++)
2953                 pScsiReq->CDB[ii] = CDB[ii];
2954
2955         pScsiReq->DataLength = cpu_to_le32(io->size);
2956         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
2957                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
2958
2959         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2960             "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%llu\n",
2961             ioc->name, __func__, cmd, io->channel, io->id, io->lun));
2962
2963         if (dir == MPI_SCSIIO_CONTROL_READ)
2964                 ioc->add_sge((char *) &pScsiReq->SGL,
2965                     MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma);
2966         else
2967                 ioc->add_sge((char *) &pScsiReq->SGL,
2968                     MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma);
2969
2970         INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
2971         mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
2972         timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done,
2973             timeout*HZ);
2974         if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2975                 ret = MPT_SCANDV_DID_RESET;
2976                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2977                     "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__,
2978                     cmd));
2979                 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2980                         mpt_free_msg_frame(ioc, mf);
2981                         goto out;
2982                 }
2983                 if (!timeleft) {
2984                         printk(MYIOC_s_WARN_FMT
2985                                "Issuing Reset from %s!! doorbell=0x%08xh"
2986                                " cmd=0x%02x\n",
2987                                ioc->name, __func__, mpt_GetIocState(ioc, 0),
2988                                cmd);
2989                         mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
2990                         mpt_free_msg_frame(ioc, mf);
2991                 }
2992                 goto out;
2993         }
2994
2995         ret = ioc->internal_cmds.completion_code;
2996         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n",
2997                         ioc->name, __func__, ret));
2998
2999  out:
3000         CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
3001         mutex_unlock(&ioc->internal_cmds.mutex);
3002         return ret;
3003 }
3004
3005 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3006 /**
3007  *      mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3008  *      @hd: Pointer to a SCSI HOST structure
3009  *      @vdevice: virtual target device
3010  *
3011  *      Uses the ISR, but with special processing.
3012  *      MUST be single-threaded.
3013  *
3014  */
3015 static void
3016 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3017 {
3018         INTERNAL_CMD             iocmd;
3019
3020         /* Ignore hidden raid components, this is handled when the command
3021          * is sent to the volume
3022          */
3023         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3024                 return;
3025
3026         if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3027             !vdevice->configured_lun)
3028                 return;
3029
3030         /* Following parameters will not change
3031          * in this routine.
3032          */
3033         iocmd.cmd = SYNCHRONIZE_CACHE;
3034         iocmd.flags = 0;
3035         iocmd.physDiskNum = -1;
3036         iocmd.data = NULL;
3037         iocmd.data_dma = -1;
3038         iocmd.size = 0;
3039         iocmd.rsvd = iocmd.rsvd2 = 0;
3040         iocmd.channel = vdevice->vtarget->channel;
3041         iocmd.id = vdevice->vtarget->id;
3042         iocmd.lun = vdevice->lun;
3043
3044         mptscsih_do_cmd(hd, &iocmd);
3045 }
3046
3047 static ssize_t
3048 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3049                          char *buf)
3050 {
3051         struct Scsi_Host *host = class_to_shost(dev);
3052         MPT_SCSI_HOST   *hd = shost_priv(host);
3053         MPT_ADAPTER *ioc = hd->ioc;
3054
3055         return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3056             (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3057             (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3058             (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3059             ioc->facts.FWVersion.Word & 0x000000FF);
3060 }
3061 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3062
3063 static ssize_t
3064 mptscsih_version_bios_show(struct device *dev, 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, "%02x.%02x.%02x.%02x\n",
3072             (ioc->biosVersion & 0xFF000000) >> 24,
3073             (ioc->biosVersion & 0x00FF0000) >> 16,
3074             (ioc->biosVersion & 0x0000FF00) >> 8,
3075             ioc->biosVersion & 0x000000FF);
3076 }
3077 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3078
3079 static ssize_t
3080 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3081                           char *buf)
3082 {
3083         struct Scsi_Host *host = class_to_shost(dev);
3084         MPT_SCSI_HOST   *hd = shost_priv(host);
3085         MPT_ADAPTER *ioc = hd->ioc;
3086
3087         return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3088 }
3089 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3090
3091 static ssize_t
3092 mptscsih_version_product_show(struct device *dev,
3093                               struct device_attribute *attr,
3094 char *buf)
3095 {
3096         struct Scsi_Host *host = class_to_shost(dev);
3097         MPT_SCSI_HOST   *hd = shost_priv(host);
3098         MPT_ADAPTER *ioc = hd->ioc;
3099
3100         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3101 }
3102 static DEVICE_ATTR(version_product, S_IRUGO,
3103     mptscsih_version_product_show, NULL);
3104
3105 static ssize_t
3106 mptscsih_version_nvdata_persistent_show(struct device *dev,
3107                                         struct device_attribute *attr,
3108                                         char *buf)
3109 {
3110         struct Scsi_Host *host = class_to_shost(dev);
3111         MPT_SCSI_HOST   *hd = shost_priv(host);
3112         MPT_ADAPTER *ioc = hd->ioc;
3113
3114         return snprintf(buf, PAGE_SIZE, "%02xh\n",
3115             ioc->nvdata_version_persistent);
3116 }
3117 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3118     mptscsih_version_nvdata_persistent_show, NULL);
3119
3120 static ssize_t
3121 mptscsih_version_nvdata_default_show(struct device *dev,
3122                                      struct device_attribute *attr, char *buf)
3123 {
3124         struct Scsi_Host *host = class_to_shost(dev);
3125         MPT_SCSI_HOST   *hd = shost_priv(host);
3126         MPT_ADAPTER *ioc = hd->ioc;
3127
3128         return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3129 }
3130 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3131     mptscsih_version_nvdata_default_show, NULL);
3132
3133 static ssize_t
3134 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3135                          char *buf)
3136 {
3137         struct Scsi_Host *host = class_to_shost(dev);
3138         MPT_SCSI_HOST   *hd = shost_priv(host);
3139         MPT_ADAPTER *ioc = hd->ioc;
3140
3141         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3142 }
3143 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3144
3145 static ssize_t
3146 mptscsih_board_assembly_show(struct device *dev,
3147                              struct device_attribute *attr, char *buf)
3148 {
3149         struct Scsi_Host *host = class_to_shost(dev);
3150         MPT_SCSI_HOST   *hd = shost_priv(host);
3151         MPT_ADAPTER *ioc = hd->ioc;
3152
3153         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3154 }
3155 static DEVICE_ATTR(board_assembly, S_IRUGO,
3156     mptscsih_board_assembly_show, NULL);
3157
3158 static ssize_t
3159 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3160                            char *buf)
3161 {
3162         struct Scsi_Host *host = class_to_shost(dev);
3163         MPT_SCSI_HOST   *hd = shost_priv(host);
3164         MPT_ADAPTER *ioc = hd->ioc;
3165
3166         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3167 }
3168 static DEVICE_ATTR(board_tracer, S_IRUGO,
3169     mptscsih_board_tracer_show, NULL);
3170
3171 static ssize_t
3172 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3173                        char *buf)
3174 {
3175         struct Scsi_Host *host = class_to_shost(dev);
3176         MPT_SCSI_HOST   *hd = shost_priv(host);
3177         MPT_ADAPTER *ioc = hd->ioc;
3178
3179         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3180 }
3181 static DEVICE_ATTR(io_delay, S_IRUGO,
3182     mptscsih_io_delay_show, NULL);
3183
3184 static ssize_t
3185 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3186                            char *buf)
3187 {
3188         struct Scsi_Host *host = class_to_shost(dev);
3189         MPT_SCSI_HOST   *hd = shost_priv(host);
3190         MPT_ADAPTER *ioc = hd->ioc;
3191
3192         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3193 }
3194 static DEVICE_ATTR(device_delay, S_IRUGO,
3195     mptscsih_device_delay_show, NULL);
3196
3197 static ssize_t
3198 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3199                           char *buf)
3200 {
3201         struct Scsi_Host *host = class_to_shost(dev);
3202         MPT_SCSI_HOST   *hd = shost_priv(host);
3203         MPT_ADAPTER *ioc = hd->ioc;
3204
3205         return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3206 }
3207 static ssize_t
3208 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3209                            const char *buf, size_t count)
3210 {
3211         struct Scsi_Host *host = class_to_shost(dev);
3212         MPT_SCSI_HOST   *hd = shost_priv(host);
3213         MPT_ADAPTER *ioc = hd->ioc;
3214         int val = 0;
3215
3216         if (sscanf(buf, "%x", &val) != 1)
3217                 return -EINVAL;
3218
3219         ioc->debug_level = val;
3220         printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3221                                 ioc->name, ioc->debug_level);
3222         return strlen(buf);
3223 }
3224 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3225         mptscsih_debug_level_show, mptscsih_debug_level_store);
3226
3227 struct device_attribute *mptscsih_host_attrs[] = {
3228         &dev_attr_version_fw,
3229         &dev_attr_version_bios,
3230         &dev_attr_version_mpi,
3231         &dev_attr_version_product,
3232         &dev_attr_version_nvdata_persistent,
3233         &dev_attr_version_nvdata_default,
3234         &dev_attr_board_name,
3235         &dev_attr_board_assembly,
3236         &dev_attr_board_tracer,
3237         &dev_attr_io_delay,
3238         &dev_attr_device_delay,
3239         &dev_attr_debug_level,
3240         NULL,
3241 };
3242
3243 EXPORT_SYMBOL(mptscsih_host_attrs);
3244
3245 EXPORT_SYMBOL(mptscsih_remove);
3246 EXPORT_SYMBOL(mptscsih_shutdown);
3247 #ifdef CONFIG_PM
3248 EXPORT_SYMBOL(mptscsih_suspend);
3249 EXPORT_SYMBOL(mptscsih_resume);
3250 #endif
3251 EXPORT_SYMBOL(mptscsih_show_info);
3252 EXPORT_SYMBOL(mptscsih_info);
3253 EXPORT_SYMBOL(mptscsih_qcmd);
3254 EXPORT_SYMBOL(mptscsih_slave_destroy);
3255 EXPORT_SYMBOL(mptscsih_slave_configure);
3256 EXPORT_SYMBOL(mptscsih_abort);
3257 EXPORT_SYMBOL(mptscsih_dev_reset);
3258 EXPORT_SYMBOL(mptscsih_bus_reset);
3259 EXPORT_SYMBOL(mptscsih_host_reset);
3260 EXPORT_SYMBOL(mptscsih_bios_param);
3261 EXPORT_SYMBOL(mptscsih_io_done);
3262 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3263 EXPORT_SYMBOL(mptscsih_scandv_complete);
3264 EXPORT_SYMBOL(mptscsih_event_process);
3265 EXPORT_SYMBOL(mptscsih_ioc_reset);
3266 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3267
3268 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/