drivers/message/fusion/mptscsih.c

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