drivers/message/fusion/mptscsih.c

   1 /*
   2  *  linux/drivers/message/fusion/mptscsih.c
   3  *      For use with LSI PCI chip/adapter(s)
   4  *      running LSI Fusion MPT (Message Passing Technology) firmware.
   5  *
   6  *  Copyright (c) 1999-2008 LSI Corporation
   7  *  (mailto:DL-MPTFusionLinux@lsi.com)
   8  *
   9  */
  10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  11 /*
  12     This program is free software; you can redistribute it and/or modify
  13     it under the terms of the GNU General Public License as published by
  14     the Free Software Foundation; version 2 of the License.
  15
  16     This program is distributed in the hope that it will be useful,
  17     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19     GNU General Public License for more details.
  20
  21     NO WARRANTY
  22     THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
  23     CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
  24     LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
  25     MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
  26     solely responsible for determining the appropriateness of using and
  27     distributing the Program and assumes all risks associated with its
  28     exercise of rights under this Agreement, including but not limited to
  29     the risks and costs of program errors, damage to or loss of data,
  30     programs or equipment, and unavailability or interruption of operations.
  31
  32     DISCLAIMER OF LIABILITY
  33     NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
  34     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35     DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
  36     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  37     TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  38     USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
  39     HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
  40
  41     You should have received a copy of the GNU General Public License
  42     along with this program; if not, write to the Free Software
  43     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  44 */
  45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  46
  47 #include <linux/module.h>
  48 #include <linux/kernel.h>
  49 #include <linux/slab.h>
  50 #include <linux/init.h>
  51 #include <linux/errno.h>
  52 #include <linux/kdev_t.h>
  53 #include <linux/blkdev.h>
  54 #include <linux/delay.h>        /* for mdelay */
  55 #include <linux/interrupt.h>    /* needed for in_interrupt() proto */
  56 #include <linux/reboot.h>       /* notifier code */
  57 #include <linux/workqueue.h>
  58
  59 #include <scsi/scsi.h>
  60 #include <scsi/scsi_cmnd.h>
  61 #include <scsi/scsi_device.h>
  62 #include <scsi/scsi_host.h>
  63 #include <scsi/scsi_tcq.h>
  64 #include <scsi/scsi_dbg.h>
  65
  66 #include "mptbase.h"
  67 #include "mptscsih.h"
  68 #include "lsi/mpi_log_sas.h"
  69
  70 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  71 #define my_NAME         "Fusion MPT SCSI Host driver"
  72 #define my_VERSION      MPT_LINUX_VERSION_COMMON
  73 #define MYNAM           "mptscsih"
  74
  75 MODULE_AUTHOR(MODULEAUTHOR);
  76 MODULE_DESCRIPTION(my_NAME);
  77 MODULE_LICENSE("GPL");
  78 MODULE_VERSION(my_VERSION);
  79
  80 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  81 /*
  82  *  Other private/forward protos...
  83  */
  84 struct scsi_cmnd        *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
  85 static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i);
  86 static void     mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd);
  87 static int      SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd);
  88 int             mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
  89 static void     mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
  90 int             mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
  91
  92 static int      mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
  93                                  SCSIIORequest_t *pReq, int req_idx);
  94 static void     mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
  95 static void     mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
  96
  97 int     mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id,
  98                 u64 lun, int ctx2abort, ulong timeout);
  99
 100 int             mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
 101 int             mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
 102
 103 void
 104 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code);
 105 static int      mptscsih_get_completion_code(MPT_ADAPTER *ioc,
 106                 MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply);
 107 int             mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
 108 static int      mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
 109 static void     mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
 110
 111 static int
 112 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
 113                                 SCSITaskMgmtReply_t *pScsiTmReply);
 114 void            mptscsih_remove(struct pci_dev *);
 115 void            mptscsih_shutdown(struct pci_dev *);
 116 #ifdef CONFIG_PM
 117 int             mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
 118 int             mptscsih_resume(struct pci_dev *pdev);
 119 #endif
 120
 121 #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 = %llu\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:%llu] "
 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                         break;
 796
 797                 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
 798                         if (ioc->bus_type == FC)
 799                                 sc->result = DID_ERROR << 16;
 800                         else
 801                                 sc->result = DID_RESET << 16;
 802                         break;
 803
 804                 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:      /* 0x0049 */
 805                         scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
 806                         if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
 807                                 sc->result=DID_SOFT_ERROR << 16;
 808                         else /* Sufficient data transfer occurred */
 809                                 sc->result = (DID_OK << 16) | scsi_status;
 810                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 811                             "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
 812                             ioc->name, sc->result, sc->device->channel, sc->device->id));
 813                         break;
 814
 815                 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
 816                         /*
 817                          *  Do upfront check for valid SenseData and give it
 818                          *  precedence!
 819                          */
 820                         sc->result = (DID_OK << 16) | scsi_status;
 821                         if (!(scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
 822
 823                                 /*
 824                                  * For an Errata on LSI53C1030
 825                                  * When the length of request data
 826                                  * and transfer data are different
 827                                  * with result of command (READ or VERIFY),
 828                                  * DID_SOFT_ERROR is set.
 829                                  */
 830                                 if (ioc->bus_type == SPI) {
 831                                         if ((pScsiReq->CDB[0] == READ_6  && ((pScsiReq->CDB[1] & 0x02) == 0)) ||
 832                                             pScsiReq->CDB[0] == READ_10 ||
 833                                             pScsiReq->CDB[0] == READ_12 ||
 834                                                 (pScsiReq->CDB[0] == READ_16 &&
 835                                                 ((pScsiReq->CDB[1] & 0x02) == 0)) ||
 836                                             pScsiReq->CDB[0] == VERIFY  ||
 837                                             pScsiReq->CDB[0] == VERIFY_16) {
 838                                                 if (scsi_bufflen(sc) !=
 839                                                         xfer_cnt) {
 840                                                         sc->result =
 841                                                         DID_SOFT_ERROR << 16;
 842                                                     printk(KERN_WARNING "Errata"
 843                                                     "on LSI53C1030 occurred."
 844                                                     "sc->req_bufflen=0x%02x,"
 845                                                     "xfer_cnt=0x%02x\n",
 846                                                     scsi_bufflen(sc),
 847                                                     xfer_cnt);
 848                                                 }
 849                                         }
 850                                 }
 851
 852                                 if (xfer_cnt < sc->underflow) {
 853                                         if (scsi_status == SAM_STAT_BUSY)
 854                                                 sc->result = SAM_STAT_BUSY;
 855                                         else
 856                                                 sc->result = DID_SOFT_ERROR << 16;
 857                                 }
 858                                 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
 859                                         /* What to do?
 860                                         */
 861                                         sc->result = DID_SOFT_ERROR << 16;
 862                                 }
 863                                 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
 864                                         /*  Not real sure here either...  */
 865                                         sc->result = DID_RESET << 16;
 866                                 }
 867                         }
 868
 869
 870                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 871                             "  sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
 872                             ioc->name, sc->underflow));
 873                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 874                             "  ActBytesXferd=%02xh\n", ioc->name, xfer_cnt));
 875
 876                         /* Report Queue Full
 877                          */
 878                         if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
 879                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 880
 881                         break;
 882
 883                 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:           /* 0x0044 */
 884                         scsi_set_resid(sc, 0);
 885                 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
 886                 case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
 887                         sc->result = (DID_OK << 16) | scsi_status;
 888                         if (scsi_state == 0) {
 889                                 ;
 890                         } else if (scsi_state &
 891                             MPI_SCSI_STATE_AUTOSENSE_VALID) {
 892
 893                                 /*
 894                                  * For potential trouble on LSI53C1030.
 895                                  * (date:2007.xx.)
 896                                  * It is checked whether the length of
 897                                  * request data is equal to
 898                                  * the length of transfer and residual.
 899                                  * MEDIUM_ERROR is set by incorrect data.
 900                                  */
 901                                 if ((ioc->bus_type == SPI) &&
 902                                         (sc->sense_buffer[2] & 0x20)) {
 903                                         u32      difftransfer;
 904                                         difftransfer =
 905                                         sc->sense_buffer[3] << 24 |
 906                                         sc->sense_buffer[4] << 16 |
 907                                         sc->sense_buffer[5] << 8 |
 908                                         sc->sense_buffer[6];
 909                                         if (((sc->sense_buffer[3] & 0x80) ==
 910                                                 0x80) && (scsi_bufflen(sc)
 911                                                 != xfer_cnt)) {
 912                                                 sc->sense_buffer[2] =
 913                                                     MEDIUM_ERROR;
 914                                                 sc->sense_buffer[12] = 0xff;
 915                                                 sc->sense_buffer[13] = 0xff;
 916                                                 printk(KERN_WARNING"Errata"
 917                                                 "on LSI53C1030 occurred."
 918                                                 "sc->req_bufflen=0x%02x,"
 919                                                 "xfer_cnt=0x%02x\n" ,
 920                                                 scsi_bufflen(sc),
 921                                                 xfer_cnt);
 922                                         }
 923                                         if (((sc->sense_buffer[3] & 0x80)
 924                                                 != 0x80) &&
 925                                                 (scsi_bufflen(sc) !=
 926                                                 xfer_cnt + difftransfer)) {
 927                                                 sc->sense_buffer[2] =
 928                                                         MEDIUM_ERROR;
 929                                                 sc->sense_buffer[12] = 0xff;
 930                                                 sc->sense_buffer[13] = 0xff;
 931                                                 printk(KERN_WARNING
 932                                                 "Errata on LSI53C1030 occurred"
 933                                                 "sc->req_bufflen=0x%02x,"
 934                                                 " xfer_cnt=0x%02x,"
 935                                                 "difftransfer=0x%02x\n",
 936                                                 scsi_bufflen(sc),
 937                                                 xfer_cnt,
 938                                                 difftransfer);
 939                                         }
 940                                 }
 941
 942                                 /*
 943                                  * If running against circa 200003dd 909 MPT f/w,
 944                                  * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
 945                                  * (QUEUE_FULL) returned from device! --> get 0x0000?128
 946                                  * and with SenseBytes set to 0.
 947                                  */
 948                                 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
 949                                         mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 950
 951                         }
 952                         else if (scsi_state &
 953                                  (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
 954                            ) {
 955                                 /*
 956                                  * What to do?
 957                                  */
 958                                 sc->result = DID_SOFT_ERROR << 16;
 959                         }
 960                         else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
 961                                 /*  Not real sure here either...  */
 962                                 sc->result = DID_RESET << 16;
 963                         }
 964                         else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
 965                                 /* Device Inq. data indicates that it supports
 966                                  * QTags, but rejects QTag messages.
 967                                  * This command completed OK.
 968                                  *
 969                                  * Not real sure here either so do nothing...  */
 970                         }
 971
 972                         if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
 973                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 974
 975                         /* Add handling of:
 976                          * Reservation Conflict, Busy,
 977                          * Command Terminated, CHECK
 978                          */
 979                         break;
 980
 981                 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
 982                         sc->result = DID_SOFT_ERROR << 16;
 983                         break;
 984
 985                 case MPI_IOCSTATUS_INVALID_FUNCTION:            /* 0x0001 */
 986                 case MPI_IOCSTATUS_INVALID_SGL:                 /* 0x0003 */
 987                 case MPI_IOCSTATUS_INTERNAL_ERROR:              /* 0x0004 */
 988                 case MPI_IOCSTATUS_RESERVED:                    /* 0x0005 */
 989                 case MPI_IOCSTATUS_INVALID_FIELD:               /* 0x0007 */
 990                 case MPI_IOCSTATUS_INVALID_STATE:               /* 0x0008 */
 991                 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
 992                 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:       /* 0x004A */
 993                 default:
 994                         /*
 995                          * What to do?
 996                          */
 997                         sc->result = DID_SOFT_ERROR << 16;
 998                         break;
 999
1000                 }       /* switch(status) */
1001
1002 #ifdef CONFIG_FUSION_LOGGING
1003                 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
1004                         mptscsih_info_scsiio(ioc, sc, pScsiReply);
1005 #endif
1006
1007         } /* end of address reply case */
1008 out:
1009         /* Unmap the DMA buffers, if any. */
1010         scsi_dma_unmap(sc);
1011
1012         sc->scsi_done(sc);              /* Issue the command callback */
1013
1014         /* Free Chain buffers */
1015         mptscsih_freeChainBuffers(ioc, req_idx);
1016         return 1;
1017 }
1018
1019 /*
1020  *      mptscsih_flush_running_cmds - For each command found, search
1021  *              Scsi_Host instance taskQ and reply to OS.
1022  *              Called only if recovering from a FW reload.
1023  *      @hd: Pointer to a SCSI HOST structure
1024  *
1025  *      Returns: None.
1026  *
1027  *      Must be called while new I/Os are being queued.
1028  */
1029 void
1030 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
1031 {
1032         MPT_ADAPTER *ioc = hd->ioc;
1033         struct scsi_cmnd *sc;
1034         SCSIIORequest_t *mf = NULL;
1035         int              ii;
1036         int              channel, id;
1037
1038         for (ii= 0; ii < ioc->req_depth; ii++) {
1039                 sc = mptscsih_getclear_scsi_lookup(ioc, ii);
1040                 if (!sc)
1041                         continue;
1042                 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1043                 if (!mf)
1044                         continue;
1045                 channel = mf->Bus;
1046                 id = mf->TargetID;
1047                 mptscsih_freeChainBuffers(ioc, ii);
1048                 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1049                 if ((unsigned char *)mf != sc->host_scribble)
1050                         continue;
1051                 scsi_dma_unmap(sc);
1052                 sc->result = DID_RESET << 16;
1053                 sc->host_scribble = NULL;
1054                 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
1055                     "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, "
1056                     "idx=%x\n", ioc->name, channel, id, sc, mf, ii));
1057                 sc->scsi_done(sc);
1058         }
1059 }
1060 EXPORT_SYMBOL(mptscsih_flush_running_cmds);
1061
1062 /*
1063  *      mptscsih_search_running_cmds - Delete any commands associated
1064  *              with the specified target and lun. Function called only
1065  *              when a lun is disable by mid-layer.
1066  *              Do NOT access the referenced scsi_cmnd structure or
1067  *              members. Will cause either a paging or NULL ptr error.
1068  *              (BUT, BUT, BUT, the code does reference it! - mdr)
1069  *      @hd: Pointer to a SCSI HOST structure
1070  *      @vdevice: per device private data
1071  *
1072  *      Returns: None.
1073  *
1074  *      Called from slave_destroy.
1075  */
1076 static void
1077 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
1078 {
1079         SCSIIORequest_t *mf = NULL;
1080         int              ii;
1081         struct scsi_cmnd *sc;
1082         struct scsi_lun  lun;
1083         MPT_ADAPTER *ioc = hd->ioc;
1084         unsigned long   flags;
1085
1086         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1087         for (ii = 0; ii < ioc->req_depth; ii++) {
1088                 if ((sc = ioc->ScsiLookup[ii]) != NULL) {
1089
1090                         mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1091                         if (mf == NULL)
1092                                 continue;
1093                         /* If the device is a hidden raid component, then its
1094                          * expected that the mf->function will be RAID_SCSI_IO
1095                          */
1096                         if (vdevice->vtarget->tflags &
1097                             MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
1098                             MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
1099                                 continue;
1100
1101                         int_to_scsilun(vdevice->lun, &lun);
1102                         if ((mf->Bus != vdevice->vtarget->channel) ||
1103                             (mf->TargetID != vdevice->vtarget->id) ||
1104                             memcmp(lun.scsi_lun, mf->LUN, 8))
1105                                 continue;
1106
1107                         if ((unsigned char *)mf != sc->host_scribble)
1108                                 continue;
1109                         ioc->ScsiLookup[ii] = NULL;
1110                         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1111                         mptscsih_freeChainBuffers(ioc, ii);
1112                         mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1113                         scsi_dma_unmap(sc);
1114                         sc->host_scribble = NULL;
1115                         sc->result = DID_NO_CONNECT << 16;
1116                         dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device,
1117                            MYIOC_s_FMT "completing cmds: fw_channel %d, "
1118                            "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name,
1119                            vdevice->vtarget->channel, vdevice->vtarget->id,
1120                            sc, mf, ii));
1121                         sc->scsi_done(sc);
1122                         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1123                 }
1124         }
1125         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1126         return;
1127 }
1128
1129 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1130
1131 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1132 /*
1133  *      mptscsih_report_queue_full - Report QUEUE_FULL status returned
1134  *      from a SCSI target device.
1135  *      @sc: Pointer to scsi_cmnd structure
1136  *      @pScsiReply: Pointer to SCSIIOReply_t
1137  *      @pScsiReq: Pointer to original SCSI request
1138  *
1139  *      This routine periodically reports QUEUE_FULL status returned from a
1140  *      SCSI target device.  It reports this to the console via kernel
1141  *      printk() API call, not more than once every 10 seconds.
1142  */
1143 static void
1144 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1145 {
1146         long time = jiffies;
1147         MPT_SCSI_HOST           *hd;
1148         MPT_ADAPTER     *ioc;
1149
1150         if (sc->device == NULL)
1151                 return;
1152         if (sc->device->host == NULL)
1153                 return;
1154         if ((hd = shost_priv(sc->device->host)) == NULL)
1155                 return;
1156         ioc = hd->ioc;
1157         if (time - hd->last_queue_full > 10 * HZ) {
1158                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%llu) reported QUEUE_FULL!\n",
1159                                 ioc->name, 0, sc->device->id, sc->device->lun));
1160                 hd->last_queue_full = time;
1161         }
1162 }
1163
1164 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1165 /*
1166  *      mptscsih_remove - Removed scsi devices
1167  *      @pdev: Pointer to pci_dev structure
1168  *
1169  *
1170  */
1171 void
1172 mptscsih_remove(struct pci_dev *pdev)
1173 {
1174         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1175         struct Scsi_Host        *host = ioc->sh;
1176         MPT_SCSI_HOST           *hd;
1177         int sz1;
1178
1179         scsi_remove_host(host);
1180
1181         if((hd = shost_priv(host)) == NULL)
1182                 return;
1183
1184         mptscsih_shutdown(pdev);
1185
1186         sz1=0;
1187
1188         if (ioc->ScsiLookup != NULL) {
1189                 sz1 = ioc->req_depth * sizeof(void *);
1190                 kfree(ioc->ScsiLookup);
1191                 ioc->ScsiLookup = NULL;
1192         }
1193
1194         dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1195             "Free'd ScsiLookup (%d) memory\n",
1196             ioc->name, sz1));
1197
1198         kfree(hd->info_kbuf);
1199
1200         /* NULL the Scsi_Host pointer
1201          */
1202         ioc->sh = NULL;
1203
1204         scsi_host_put(host);
1205
1206         mpt_detach(pdev);
1207
1208 }
1209
1210 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1211 /*
1212  *      mptscsih_shutdown - reboot notifier
1213  *
1214  */
1215 void
1216 mptscsih_shutdown(struct pci_dev *pdev)
1217 {
1218 }
1219
1220 #ifdef CONFIG_PM
1221 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1222 /*
1223  *      mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1224  *
1225  *
1226  */
1227 int
1228 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1229 {
1230         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1231
1232         scsi_block_requests(ioc->sh);
1233         flush_scheduled_work();
1234         mptscsih_shutdown(pdev);
1235         return mpt_suspend(pdev,state);
1236 }
1237
1238 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1239 /*
1240  *      mptscsih_resume - Fusion MPT scsi driver resume routine.
1241  *
1242  *
1243  */
1244 int
1245 mptscsih_resume(struct pci_dev *pdev)
1246 {
1247         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1248         int rc;
1249
1250         rc = mpt_resume(pdev);
1251         scsi_unblock_requests(ioc->sh);
1252         return rc;
1253 }
1254
1255 #endif
1256
1257 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1258 /**
1259  *      mptscsih_info - Return information about MPT adapter
1260  *      @SChost: Pointer to Scsi_Host structure
1261  *
1262  *      (linux scsi_host_template.info routine)
1263  *
1264  *      Returns pointer to buffer where information was written.
1265  */
1266 const char *
1267 mptscsih_info(struct Scsi_Host *SChost)
1268 {
1269         MPT_SCSI_HOST *h;
1270         int size = 0;
1271
1272         h = shost_priv(SChost);
1273
1274         if (h) {
1275                 if (h->info_kbuf == NULL)
1276                         if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1277                                 return h->info_kbuf;
1278                 h->info_kbuf[0] = '\0';
1279
1280                 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1281                 h->info_kbuf[size-1] = '\0';
1282         }
1283
1284         return h->info_kbuf;
1285 }
1286
1287 int mptscsih_show_info(struct seq_file *m, struct Scsi_Host *host)
1288 {
1289         MPT_SCSI_HOST   *hd = shost_priv(host);
1290         MPT_ADAPTER     *ioc = hd->ioc;
1291
1292         seq_printf(m, "%s: %s, ", ioc->name, ioc->prod_name);
1293         seq_printf(m, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1294         seq_printf(m, "Ports=%d, ", ioc->facts.NumberOfPorts);
1295         seq_printf(m, "MaxQ=%d\n", ioc->req_depth);
1296
1297         return 0;
1298 }
1299
1300 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1301 #define ADD_INDEX_LOG(req_ent)  do { } while(0)
1302
1303 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1304 /**
1305  *      mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1306  *      @SCpnt: Pointer to scsi_cmnd structure
1307  *
1308  *      (linux scsi_host_template.queuecommand routine)
1309  *      This is the primary SCSI IO start routine.  Create a MPI SCSIIORequest
1310  *      from a linux scsi_cmnd request and send it to the IOC.
1311  *
1312  *      Returns 0. (rtn value discarded by linux scsi mid-layer)
1313  */
1314 int
1315 mptscsih_qcmd(struct scsi_cmnd *SCpnt)
1316 {
1317         MPT_SCSI_HOST           *hd;
1318         MPT_FRAME_HDR           *mf;
1319         SCSIIORequest_t         *pScsiReq;
1320         VirtDevice              *vdevice = SCpnt->device->hostdata;
1321         u32      datalen;
1322         u32      scsictl;
1323         u32      scsidir;
1324         u32      cmd_len;
1325         int      my_idx;
1326         int      ii;
1327         MPT_ADAPTER *ioc;
1328
1329         hd = shost_priv(SCpnt->device->host);
1330         ioc = hd->ioc;
1331
1332         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p\n",
1333                 ioc->name, SCpnt));
1334
1335         if (ioc->taskmgmt_quiesce_io)
1336                 return SCSI_MLQUEUE_HOST_BUSY;
1337
1338         /*
1339          *  Put together a MPT SCSI request...
1340          */
1341         if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1342                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1343                                 ioc->name));
1344                 return SCSI_MLQUEUE_HOST_BUSY;
1345         }
1346
1347         pScsiReq = (SCSIIORequest_t *) mf;
1348
1349         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1350
1351         ADD_INDEX_LOG(my_idx);
1352
1353         /*    TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1354          *    Seems we may receive a buffer (datalen>0) even when there
1355          *    will be no data transfer!  GRRRRR...
1356          */
1357         if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1358                 datalen = scsi_bufflen(SCpnt);
1359                 scsidir = MPI_SCSIIO_CONTROL_READ;      /* DATA IN  (host<--ioc<--dev) */
1360         } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1361                 datalen = scsi_bufflen(SCpnt);
1362                 scsidir = MPI_SCSIIO_CONTROL_WRITE;     /* DATA OUT (host-->ioc-->dev) */
1363         } else {
1364                 datalen = 0;
1365                 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1366         }
1367
1368         /* Default to untagged. Once a target structure has been allocated,
1369          * use the Inquiry data to determine if device supports tagged.
1370          */
1371         if (vdevice
1372             && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1373             && (SCpnt->device->tagged_supported)) {
1374                 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1375                 if (SCpnt->request && SCpnt->request->ioprio) {
1376                         if (((SCpnt->request->ioprio & 0x7) == 1) ||
1377                                 !(SCpnt->request->ioprio & 0x7))
1378                                 scsictl |= MPI_SCSIIO_CONTROL_HEADOFQ;
1379                 }
1380         } else
1381                 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1382
1383
1384         /* Use the above information to set up the message frame
1385          */
1386         pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1387         pScsiReq->Bus = vdevice->vtarget->channel;
1388         pScsiReq->ChainOffset = 0;
1389         if (vdevice->vtarget->tflags &  MPT_TARGET_FLAGS_RAID_COMPONENT)
1390                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1391         else
1392                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1393         pScsiReq->CDBLength = SCpnt->cmd_len;
1394         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1395         pScsiReq->Reserved = 0;
1396         pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1397         int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1398         pScsiReq->Control = cpu_to_le32(scsictl);
1399
1400         /*
1401          *  Write SCSI CDB into the message
1402          */
1403         cmd_len = SCpnt->cmd_len;
1404         for (ii=0; ii < cmd_len; ii++)
1405                 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1406
1407         for (ii=cmd_len; ii < 16; ii++)
1408                 pScsiReq->CDB[ii] = 0;
1409
1410         /* DataLength */
1411         pScsiReq->DataLength = cpu_to_le32(datalen);
1412
1413         /* SenseBuffer low address */
1414         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1415                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1416
1417         /* Now add the SG list
1418          * Always have a SGE even if null length.
1419          */
1420         if (datalen == 0) {
1421                 /* Add a NULL SGE */
1422                 ioc->add_sge((char *)&pScsiReq->SGL,
1423                         MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1424                         (dma_addr_t) -1);
1425         } else {
1426                 /* Add a 32 or 64 bit SGE */
1427                 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1428                         goto fail;
1429         }
1430
1431         SCpnt->host_scribble = (unsigned char *)mf;
1432         mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1433
1434         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1435         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1436                         ioc->name, SCpnt, mf, my_idx));
1437         DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1438         return 0;
1439
1440  fail:
1441         mptscsih_freeChainBuffers(ioc, my_idx);
1442         mpt_free_msg_frame(ioc, mf);
1443         return SCSI_MLQUEUE_HOST_BUSY;
1444 }
1445
1446 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1447 /*
1448  *      mptscsih_freeChainBuffers - Function to free chain buffers associated
1449  *      with a SCSI IO request
1450  *      @hd: Pointer to the MPT_SCSI_HOST instance
1451  *      @req_idx: Index of the SCSI IO request frame.
1452  *
1453  *      Called if SG chain buffer allocation fails and mptscsih callbacks.
1454  *      No return.
1455  */
1456 static void
1457 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1458 {
1459         MPT_FRAME_HDR *chain;
1460         unsigned long flags;
1461         int chain_idx;
1462         int next;
1463
1464         /* Get the first chain index and reset
1465          * tracker state.
1466          */
1467         chain_idx = ioc->ReqToChain[req_idx];
1468         ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1469
1470         while (chain_idx != MPT_HOST_NO_CHAIN) {
1471
1472                 /* Save the next chain buffer index */
1473                 next = ioc->ChainToChain[chain_idx];
1474
1475                 /* Free this chain buffer and reset
1476                  * tracker
1477                  */
1478                 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1479
1480                 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1481                                         + (chain_idx * ioc->req_sz));
1482
1483                 spin_lock_irqsave(&ioc->FreeQlock, flags);
1484                 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1485                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1486
1487                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1488                                 ioc->name, chain_idx));
1489
1490                 /* handle next */
1491                 chain_idx = next;
1492         }
1493         return;
1494 }
1495
1496 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1497 /*
1498  *      Reset Handling
1499  */
1500
1501 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1502 /**
1503  *      mptscsih_IssueTaskMgmt - Generic send Task Management function.
1504  *      @hd: Pointer to MPT_SCSI_HOST structure
1505  *      @type: Task Management type
1506  *      @channel: channel number for task management
1507  *      @id: Logical Target ID for reset (if appropriate)
1508  *      @lun: Logical Unit for reset (if appropriate)
1509  *      @ctx2abort: Context for the task to be aborted (if appropriate)
1510  *      @timeout: timeout for task management control
1511  *
1512  *      Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1513  *      or a non-interrupt thread.  In the former, must not call schedule().
1514  *
1515  *      Not all fields are meaningfull for all task types.
1516  *
1517  *      Returns 0 for SUCCESS, or FAILED.
1518  *
1519  **/
1520 int
1521 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, u64 lun,
1522         int ctx2abort, ulong timeout)
1523 {
1524         MPT_FRAME_HDR   *mf;
1525         SCSITaskMgmt_t  *pScsiTm;
1526         int              ii;
1527         int              retval;
1528         MPT_ADAPTER     *ioc = hd->ioc;
1529         unsigned long    timeleft;
1530         u8               issue_hard_reset;
1531         u32              ioc_raw_state;
1532         unsigned long    time_count;
1533
1534         issue_hard_reset = 0;
1535         ioc_raw_state = mpt_GetIocState(ioc, 0);
1536
1537         if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1538                 printk(MYIOC_s_WARN_FMT
1539                         "TaskMgmt type=%x: IOC Not operational (0x%x)!\n",
1540                         ioc->name, type, ioc_raw_state);
1541                 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
1542                     ioc->name, __func__);
1543                 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1544                         printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset "
1545                             "FAILED!!\n", ioc->name);
1546                 return 0;
1547         }
1548
1549         /* DOORBELL ACTIVE check is not required if
1550         *  MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported.
1551         */
1552
1553         if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q)
1554                  && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) &&
1555                 (ioc_raw_state & MPI_DOORBELL_ACTIVE)) {
1556                 printk(MYIOC_s_WARN_FMT
1557                         "TaskMgmt type=%x: ioc_state: "
1558                         "DOORBELL_ACTIVE (0x%x)!\n",
1559                         ioc->name, type, ioc_raw_state);
1560                 return FAILED;
1561         }
1562
1563         mutex_lock(&ioc->taskmgmt_cmds.mutex);
1564         if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
1565                 mf = NULL;
1566                 retval = FAILED;
1567                 goto out;
1568         }
1569
1570         /* Return Fail to calling function if no message frames available.
1571          */
1572         if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1573                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1574                         "TaskMgmt no msg frames!!\n", ioc->name));
1575                 retval = FAILED;
1576                 mpt_clear_taskmgmt_in_progress_flag(ioc);
1577                 goto out;
1578         }
1579         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
1580                         ioc->name, mf));
1581
1582         /* Format the Request
1583          */
1584         pScsiTm = (SCSITaskMgmt_t *) mf;
1585         pScsiTm->TargetID = id;
1586         pScsiTm->Bus = channel;
1587         pScsiTm->ChainOffset = 0;
1588         pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1589
1590         pScsiTm->Reserved = 0;
1591         pScsiTm->TaskType = type;
1592         pScsiTm->Reserved1 = 0;
1593         pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1594                     ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1595
1596         int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1597
1598         for (ii=0; ii < 7; ii++)
1599                 pScsiTm->Reserved2[ii] = 0;
1600
1601         pScsiTm->TaskMsgContext = ctx2abort;
1602
1603         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) "
1604                 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort,
1605                 type, timeout));
1606
1607         DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1608
1609         INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1610         time_count = jiffies;
1611         if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1612             (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1613                 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1614         else {
1615                 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1616                         sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1617                 if (retval) {
1618                         dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1619                                 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n",
1620                                 ioc->name, mf, retval));
1621                         mpt_free_msg_frame(ioc, mf);
1622                         mpt_clear_taskmgmt_in_progress_flag(ioc);
1623                         goto out;
1624                 }
1625         }
1626
1627         timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
1628                 timeout*HZ);
1629         if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
1630                 retval = FAILED;
1631                 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
1632                     "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf));
1633                 mpt_clear_taskmgmt_in_progress_flag(ioc);
1634                 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
1635                         goto out;
1636                 issue_hard_reset = 1;
1637                 goto out;
1638         }
1639
1640         retval = mptscsih_taskmgmt_reply(ioc, type,
1641             (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply);
1642
1643         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1644             "TaskMgmt completed (%d seconds)\n",
1645             ioc->name, jiffies_to_msecs(jiffies - time_count)/1000));
1646
1647  out:
1648
1649         CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1650         if (issue_hard_reset) {
1651                 printk(MYIOC_s_WARN_FMT
1652                        "Issuing Reset from %s!! doorbell=0x%08x\n",
1653                        ioc->name, __func__, mpt_GetIocState(ioc, 0));
1654                 retval = (ioc->bus_type == SAS) ?
1655                         mpt_HardResetHandler(ioc, CAN_SLEEP) :
1656                         mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1657                 mpt_free_msg_frame(ioc, mf);
1658         }
1659
1660         retval = (retval == 0) ? 0 : FAILED;
1661         mutex_unlock(&ioc->taskmgmt_cmds.mutex);
1662         return retval;
1663 }
1664 EXPORT_SYMBOL(mptscsih_IssueTaskMgmt);
1665
1666 static int
1667 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1668 {
1669         switch (ioc->bus_type) {
1670         case FC:
1671                 return 40;
1672         case SAS:
1673                 return 30;
1674         case SPI:
1675         default:
1676                 return 10;
1677         }
1678 }
1679
1680 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1681 /**
1682  *      mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1683  *      @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1684  *
1685  *      (linux scsi_host_template.eh_abort_handler routine)
1686  *
1687  *      Returns SUCCESS or FAILED.
1688  **/
1689 int
1690 mptscsih_abort(struct scsi_cmnd * SCpnt)
1691 {
1692         MPT_SCSI_HOST   *hd;
1693         MPT_FRAME_HDR   *mf;
1694         u32              ctx2abort;
1695         int              scpnt_idx;
1696         int              retval;
1697         VirtDevice       *vdevice;
1698         MPT_ADAPTER     *ioc;
1699
1700         /* If we can't locate our host adapter structure, return FAILED status.
1701          */
1702         if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1703                 SCpnt->result = DID_RESET << 16;
1704                 SCpnt->scsi_done(SCpnt);
1705                 printk(KERN_ERR MYNAM ": task abort: "
1706                     "can't locate host! (sc=%p)\n", SCpnt);
1707                 return FAILED;
1708         }
1709
1710         ioc = hd->ioc;
1711         printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1712                ioc->name, SCpnt);
1713         scsi_print_command(SCpnt);
1714
1715         vdevice = SCpnt->device->hostdata;
1716         if (!vdevice || !vdevice->vtarget) {
1717                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1718                     "task abort: device has been deleted (sc=%p)\n",
1719                     ioc->name, SCpnt));
1720                 SCpnt->result = DID_NO_CONNECT << 16;
1721                 SCpnt->scsi_done(SCpnt);
1722                 retval = SUCCESS;
1723                 goto out;
1724         }
1725
1726         /* Task aborts are not supported for hidden raid components.
1727          */
1728         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1729                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1730                     "task abort: hidden raid component (sc=%p)\n",
1731                     ioc->name, SCpnt));
1732                 SCpnt->result = DID_RESET << 16;
1733                 retval = FAILED;
1734                 goto out;
1735         }
1736
1737         /* Task aborts are not supported for volumes.
1738          */
1739         if (vdevice->vtarget->raidVolume) {
1740                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1741                     "task abort: raid volume (sc=%p)\n",
1742                     ioc->name, SCpnt));
1743                 SCpnt->result = DID_RESET << 16;
1744                 retval = FAILED;
1745                 goto out;
1746         }
1747
1748         /* Find this command
1749          */
1750         if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1751                 /* Cmd not found in ScsiLookup.
1752                  * Do OS callback.
1753                  */
1754                 SCpnt->result = DID_RESET << 16;
1755                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1756                    "Command not in the active list! (sc=%p)\n", ioc->name,
1757                    SCpnt));
1758                 retval = SUCCESS;
1759                 goto out;
1760         }
1761
1762         if (ioc->timeouts < -1)
1763                 ioc->timeouts++;
1764
1765         if (mpt_fwfault_debug)
1766                 mpt_halt_firmware(ioc);
1767
1768         /* Most important!  Set TaskMsgContext to SCpnt's MsgContext!
1769          * (the IO to be ABORT'd)
1770          *
1771          * NOTE: Since we do not byteswap MsgContext, we do not
1772          *       swap it here either.  It is an opaque cookie to
1773          *       the controller, so it does not matter. -DaveM
1774          */
1775         mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1776         ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1777         retval = mptscsih_IssueTaskMgmt(hd,
1778                          MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1779                          vdevice->vtarget->channel,
1780                          vdevice->vtarget->id, vdevice->lun,
1781                          ctx2abort, mptscsih_get_tm_timeout(ioc));
1782
1783         if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) {
1784                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1785                     "task abort: command still in active list! (sc=%p)\n",
1786                     ioc->name, SCpnt));
1787                 retval = FAILED;
1788         } else {
1789                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1790                     "task abort: command cleared from active list! (sc=%p)\n",
1791                     ioc->name, SCpnt));
1792                 retval = SUCCESS;
1793         }
1794
1795  out:
1796         printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n",
1797             ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval,
1798             SCpnt);
1799
1800         return retval;
1801 }
1802
1803 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1804 /**
1805  *      mptscsih_dev_reset - Perform a SCSI TARGET_RESET!  new_eh variant
1806  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1807  *
1808  *      (linux scsi_host_template.eh_dev_reset_handler routine)
1809  *
1810  *      Returns SUCCESS or FAILED.
1811  **/
1812 int
1813 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1814 {
1815         MPT_SCSI_HOST   *hd;
1816         int              retval;
1817         VirtDevice       *vdevice;
1818         MPT_ADAPTER     *ioc;
1819
1820         /* If we can't locate our host adapter structure, return FAILED status.
1821          */
1822         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1823                 printk(KERN_ERR MYNAM ": target reset: "
1824                    "Can't locate host! (sc=%p)\n", SCpnt);
1825                 return FAILED;
1826         }
1827
1828         ioc = hd->ioc;
1829         printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1830                ioc->name, SCpnt);
1831         scsi_print_command(SCpnt);
1832
1833         vdevice = SCpnt->device->hostdata;
1834         if (!vdevice || !vdevice->vtarget) {
1835                 retval = 0;
1836                 goto out;
1837         }
1838
1839         /* Target reset to hidden raid component is not supported
1840          */
1841         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1842                 retval = FAILED;
1843                 goto out;
1844         }
1845
1846         retval = mptscsih_IssueTaskMgmt(hd,
1847                                 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1848                                 vdevice->vtarget->channel,
1849                                 vdevice->vtarget->id, 0, 0,
1850                                 mptscsih_get_tm_timeout(ioc));
1851
1852  out:
1853         printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1854             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1855
1856         if (retval == 0)
1857                 return SUCCESS;
1858         else
1859                 return FAILED;
1860 }
1861
1862
1863 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1864 /**
1865  *      mptscsih_bus_reset - Perform a SCSI BUS_RESET!  new_eh variant
1866  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1867  *
1868  *      (linux scsi_host_template.eh_bus_reset_handler routine)
1869  *
1870  *      Returns SUCCESS or FAILED.
1871  **/
1872 int
1873 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1874 {
1875         MPT_SCSI_HOST   *hd;
1876         int              retval;
1877         VirtDevice       *vdevice;
1878         MPT_ADAPTER     *ioc;
1879
1880         /* If we can't locate our host adapter structure, return FAILED status.
1881          */
1882         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1883                 printk(KERN_ERR MYNAM ": bus reset: "
1884                    "Can't locate host! (sc=%p)\n", SCpnt);
1885                 return FAILED;
1886         }
1887
1888         ioc = hd->ioc;
1889         printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1890                ioc->name, SCpnt);
1891         scsi_print_command(SCpnt);
1892
1893         if (ioc->timeouts < -1)
1894                 ioc->timeouts++;
1895
1896         vdevice = SCpnt->device->hostdata;
1897         if (!vdevice || !vdevice->vtarget)
1898                 return SUCCESS;
1899         retval = mptscsih_IssueTaskMgmt(hd,
1900                                         MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1901                                         vdevice->vtarget->channel, 0, 0, 0,
1902                                         mptscsih_get_tm_timeout(ioc));
1903
1904         printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1905             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1906
1907         if (retval == 0)
1908                 return SUCCESS;
1909         else
1910                 return FAILED;
1911 }
1912
1913 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1914 /**
1915  *      mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1916  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1917  *
1918  *      (linux scsi_host_template.eh_host_reset_handler routine)
1919  *
1920  *      Returns SUCCESS or FAILED.
1921  */
1922 int
1923 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1924 {
1925         MPT_SCSI_HOST *  hd;
1926         int              status = SUCCESS;
1927         MPT_ADAPTER     *ioc;
1928         int             retval;
1929
1930         /*  If we can't locate the host to reset, then we failed. */
1931         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1932                 printk(KERN_ERR MYNAM ": host reset: "
1933                     "Can't locate host! (sc=%p)\n", SCpnt);
1934                 return FAILED;
1935         }
1936
1937         /* make sure we have no outstanding commands at this stage */
1938         mptscsih_flush_running_cmds(hd);
1939
1940         ioc = hd->ioc;
1941         printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
1942             ioc->name, SCpnt);
1943
1944         /*  If our attempts to reset the host failed, then return a failed
1945          *  status.  The host will be taken off line by the SCSI mid-layer.
1946          */
1947     retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1948         if (retval < 0)
1949                 status = FAILED;
1950         else
1951                 status = SUCCESS;
1952
1953         printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
1954             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1955
1956         return status;
1957 }
1958
1959 static int
1960 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
1961         SCSITaskMgmtReply_t *pScsiTmReply)
1962 {
1963         u16                      iocstatus;
1964         u32                      termination_count;
1965         int                      retval;
1966
1967         if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
1968                 retval = FAILED;
1969                 goto out;
1970         }
1971
1972         DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
1973
1974         iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
1975         termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
1976
1977         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1978             "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n"
1979             "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n"
1980             "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus,
1981             pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus),
1982             le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode,
1983             termination_count));
1984
1985         if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
1986             pScsiTmReply->ResponseCode)
1987                 mptscsih_taskmgmt_response_code(ioc,
1988                     pScsiTmReply->ResponseCode);
1989
1990         if (iocstatus == MPI_IOCSTATUS_SUCCESS) {
1991                 retval = 0;
1992                 goto out;
1993         }
1994
1995         retval = FAILED;
1996         if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1997                 if (termination_count == 1)
1998                         retval = 0;
1999                 goto out;
2000         }
2001
2002         if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
2003            iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
2004                 retval = 0;
2005
2006  out:
2007         return retval;
2008 }
2009
2010 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2011 void
2012 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2013 {
2014         char *desc;
2015
2016         switch (response_code) {
2017         case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2018                 desc = "The task completed.";
2019                 break;
2020         case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2021                 desc = "The IOC received an invalid frame status.";
2022                 break;
2023         case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2024                 desc = "The task type is not supported.";
2025                 break;
2026         case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2027                 desc = "The requested task failed.";
2028                 break;
2029         case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2030                 desc = "The task completed successfully.";
2031                 break;
2032         case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2033                 desc = "The LUN request is invalid.";
2034                 break;
2035         case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2036                 desc = "The task is in the IOC queue and has not been sent to target.";
2037                 break;
2038         default:
2039                 desc = "unknown";
2040                 break;
2041         }
2042         printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2043                 ioc->name, response_code, desc);
2044 }
2045 EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
2046
2047 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2048 /**
2049  *      mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2050  *      @ioc: Pointer to MPT_ADAPTER structure
2051  *      @mf: Pointer to SCSI task mgmt request frame
2052  *      @mr: Pointer to SCSI task mgmt reply frame
2053  *
2054  *      This routine is called from mptbase.c::mpt_interrupt() at the completion
2055  *      of any SCSI task management request.
2056  *      This routine is registered with the MPT (base) driver at driver
2057  *      load/init time via the mpt_register() API call.
2058  *
2059  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2060  **/
2061 int
2062 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf,
2063         MPT_FRAME_HDR *mr)
2064 {
2065         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2066                 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr));
2067
2068         ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2069
2070         if (!mr)
2071                 goto out;
2072
2073         ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2074         memcpy(ioc->taskmgmt_cmds.reply, mr,
2075             min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
2076  out:
2077         if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
2078                 mpt_clear_taskmgmt_in_progress_flag(ioc);
2079                 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2080                 complete(&ioc->taskmgmt_cmds.done);
2081                 if (ioc->bus_type == SAS)
2082                         ioc->schedule_target_reset(ioc);
2083                 return 1;
2084         }
2085         return 0;
2086 }
2087
2088 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2089 /*
2090  *      This is anyones guess quite frankly.
2091  */
2092 int
2093 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2094                 sector_t capacity, int geom[])
2095 {
2096         int             heads;
2097         int             sectors;
2098         sector_t        cylinders;
2099         ulong           dummy;
2100
2101         heads = 64;
2102         sectors = 32;
2103
2104         dummy = heads * sectors;
2105         cylinders = capacity;
2106         sector_div(cylinders,dummy);
2107
2108         /*
2109          * Handle extended translation size for logical drives
2110          * > 1Gb
2111          */
2112         if ((ulong)capacity >= 0x200000) {
2113                 heads = 255;
2114                 sectors = 63;
2115                 dummy = heads * sectors;
2116                 cylinders = capacity;
2117                 sector_div(cylinders,dummy);
2118         }
2119
2120         /* return result */
2121         geom[0] = heads;
2122         geom[1] = sectors;
2123         geom[2] = cylinders;
2124
2125         return 0;
2126 }
2127
2128 /* Search IOC page 3 to determine if this is hidden physical disk
2129  *
2130  */
2131 int
2132 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2133 {
2134         struct inactive_raid_component_info *component_info;
2135         int i, j;
2136         RaidPhysDiskPage1_t *phys_disk;
2137         int rc = 0;
2138         int num_paths;
2139
2140         if (!ioc->raid_data.pIocPg3)
2141                 goto out;
2142         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2143                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2144                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2145                         rc = 1;
2146                         goto out;
2147                 }
2148         }
2149
2150         if (ioc->bus_type != SAS)
2151                 goto out;
2152
2153         /*
2154          * Check if dual path
2155          */
2156         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2157                 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2158                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2159                 if (num_paths < 2)
2160                         continue;
2161                 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2162                    (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2163                 if (!phys_disk)
2164                         continue;
2165                 if ((mpt_raid_phys_disk_pg1(ioc,
2166                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2167                     phys_disk))) {
2168                         kfree(phys_disk);
2169                         continue;
2170                 }
2171                 for (j = 0; j < num_paths; j++) {
2172                         if ((phys_disk->Path[j].Flags &
2173                             MPI_RAID_PHYSDISK1_FLAG_INVALID))
2174                                 continue;
2175                         if ((phys_disk->Path[j].Flags &
2176                             MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2177                                 continue;
2178                         if ((id == phys_disk->Path[j].PhysDiskID) &&
2179                             (channel == phys_disk->Path[j].PhysDiskBus)) {
2180                                 rc = 1;
2181                                 kfree(phys_disk);
2182                                 goto out;
2183                         }
2184                 }
2185                 kfree(phys_disk);
2186         }
2187
2188
2189         /*
2190          * Check inactive list for matching phys disks
2191          */
2192         if (list_empty(&ioc->raid_data.inactive_list))
2193                 goto out;
2194
2195         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2196         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2197             list) {
2198                 if ((component_info->d.PhysDiskID == id) &&
2199                     (component_info->d.PhysDiskBus == channel))
2200                         rc = 1;
2201         }
2202         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2203
2204  out:
2205         return rc;
2206 }
2207 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2208
2209 u8
2210 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2211 {
2212         struct inactive_raid_component_info *component_info;
2213         int i, j;
2214         RaidPhysDiskPage1_t *phys_disk;
2215         int rc = -ENXIO;
2216         int num_paths;
2217
2218         if (!ioc->raid_data.pIocPg3)
2219                 goto out;
2220         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2221                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2222                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2223                         rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2224                         goto out;
2225                 }
2226         }
2227
2228         if (ioc->bus_type != SAS)
2229                 goto out;
2230
2231         /*
2232          * Check if dual path
2233          */
2234         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2235                 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2236                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2237                 if (num_paths < 2)
2238                         continue;
2239                 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2240                    (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2241                 if (!phys_disk)
2242                         continue;
2243                 if ((mpt_raid_phys_disk_pg1(ioc,
2244                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2245                     phys_disk))) {
2246                         kfree(phys_disk);
2247                         continue;
2248                 }
2249                 for (j = 0; j < num_paths; j++) {
2250                         if ((phys_disk->Path[j].Flags &
2251                             MPI_RAID_PHYSDISK1_FLAG_INVALID))
2252                                 continue;
2253                         if ((phys_disk->Path[j].Flags &
2254                             MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2255                                 continue;
2256                         if ((id == phys_disk->Path[j].PhysDiskID) &&
2257                             (channel == phys_disk->Path[j].PhysDiskBus)) {
2258                                 rc = phys_disk->PhysDiskNum;
2259                                 kfree(phys_disk);
2260                                 goto out;
2261                         }
2262                 }
2263                 kfree(phys_disk);
2264         }
2265
2266         /*
2267          * Check inactive list for matching phys disks
2268          */
2269         if (list_empty(&ioc->raid_data.inactive_list))
2270                 goto out;
2271
2272         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2273         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2274             list) {
2275                 if ((component_info->d.PhysDiskID == id) &&
2276                     (component_info->d.PhysDiskBus == channel))
2277                         rc = component_info->d.PhysDiskNum;
2278         }
2279         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2280
2281  out:
2282         return rc;
2283 }
2284 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2285
2286 /*
2287  *      OS entry point to allow for host driver to free allocated memory
2288  *      Called if no device present or device being unloaded
2289  */
2290 void
2291 mptscsih_slave_destroy(struct scsi_device *sdev)
2292 {
2293         struct Scsi_Host        *host = sdev->host;
2294         MPT_SCSI_HOST           *hd = shost_priv(host);
2295         VirtTarget              *vtarget;
2296         VirtDevice              *vdevice;
2297         struct scsi_target      *starget;
2298
2299         starget = scsi_target(sdev);
2300         vtarget = starget->hostdata;
2301         vdevice = sdev->hostdata;
2302         if (!vdevice)
2303                 return;
2304
2305         mptscsih_search_running_cmds(hd, vdevice);
2306         vtarget->num_luns--;
2307         mptscsih_synchronize_cache(hd, vdevice);
2308         kfree(vdevice);
2309         sdev->hostdata = NULL;
2310 }
2311
2312 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2313 /*
2314  *      mptscsih_change_queue_depth - This function will set a devices queue depth
2315  *      @sdev: per scsi_device pointer
2316  *      @qdepth: requested queue depth
2317  *      @reason: calling context
2318  *
2319  *      Adding support for new 'change_queue_depth' api.
2320 */
2321 int
2322 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
2323 {
2324         MPT_SCSI_HOST           *hd = shost_priv(sdev->host);
2325         VirtTarget              *vtarget;
2326         struct scsi_target      *starget;
2327         int                     max_depth;
2328         int                     tagged;
2329         MPT_ADAPTER             *ioc = hd->ioc;
2330
2331         starget = scsi_target(sdev);
2332         vtarget = starget->hostdata;
2333
2334         if (reason != SCSI_QDEPTH_DEFAULT)
2335                 return -EOPNOTSUPP;
2336
2337         if (ioc->bus_type == SPI) {
2338                 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2339                         max_depth = 1;
2340                 else if (sdev->type == TYPE_DISK &&
2341                          vtarget->minSyncFactor <= MPT_ULTRA160)
2342                         max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2343                 else
2344                         max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2345         } else
2346                  max_depth = ioc->sh->can_queue;
2347
2348         if (!sdev->tagged_supported)
2349                 max_depth = 1;
2350
2351         if (qdepth > max_depth)
2352                 qdepth = max_depth;
2353         if (qdepth == 1)
2354                 tagged = 0;
2355         else
2356                 tagged = MSG_SIMPLE_TAG;
2357
2358         scsi_adjust_queue_depth(sdev, tagged, qdepth);
2359         return sdev->queue_depth;
2360 }
2361
2362 /*
2363  *      OS entry point to adjust the queue_depths on a per-device basis.
2364  *      Called once per device the bus scan. Use it to force the queue_depth
2365  *      member to 1 if a device does not support Q tags.
2366  *      Return non-zero if fails.
2367  */
2368 int
2369 mptscsih_slave_configure(struct scsi_device *sdev)
2370 {
2371         struct Scsi_Host        *sh = sdev->host;
2372         VirtTarget              *vtarget;
2373         VirtDevice              *vdevice;
2374         struct scsi_target      *starget;
2375         MPT_SCSI_HOST           *hd = shost_priv(sh);
2376         MPT_ADAPTER             *ioc = hd->ioc;
2377
2378         starget = scsi_target(sdev);
2379         vtarget = starget->hostdata;
2380         vdevice = sdev->hostdata;
2381
2382         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2383                 "device @ %p, channel=%d, id=%d, lun=%llu\n",
2384                 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2385         if (ioc->bus_type == SPI)
2386                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2387                     "sdtr %d wdtr %d ppr %d inq length=%d\n",
2388                     ioc->name, sdev->sdtr, sdev->wdtr,
2389                     sdev->ppr, sdev->inquiry_len));
2390
2391         vdevice->configured_lun = 1;
2392
2393         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2394                 "Queue depth=%d, tflags=%x\n",
2395                 ioc->name, sdev->queue_depth, vtarget->tflags));
2396
2397         if (ioc->bus_type == SPI)
2398                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2399                     "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2400                     ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2401                     vtarget->minSyncFactor));
2402
2403         mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH,
2404                                     SCSI_QDEPTH_DEFAULT);
2405         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2406                 "tagged %d, simple %d, ordered %d\n",
2407                 ioc->name,sdev->tagged_supported, sdev->simple_tags,
2408                 sdev->ordered_tags));
2409
2410         blk_queue_dma_alignment (sdev->request_queue, 512 - 1);
2411
2412         return 0;
2413 }
2414
2415 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2416 /*
2417  *  Private routines...
2418  */
2419
2420 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2421 /* Utility function to copy sense data from the scsi_cmnd buffer
2422  * to the FC and SCSI target structures.
2423  *
2424  */
2425 static void
2426 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2427 {
2428         VirtDevice      *vdevice;
2429         SCSIIORequest_t *pReq;
2430         u32              sense_count = le32_to_cpu(pScsiReply->SenseCount);
2431         MPT_ADAPTER     *ioc = hd->ioc;
2432
2433         /* Get target structure
2434          */
2435         pReq = (SCSIIORequest_t *) mf;
2436         vdevice = sc->device->hostdata;
2437
2438         if (sense_count) {
2439                 u8 *sense_data;
2440                 int req_index;
2441
2442                 /* Copy the sense received into the scsi command block. */
2443                 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2444                 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2445                 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2446
2447                 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2448                  */
2449                 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2450                         if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2451                                 int idx;
2452
2453                                 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2454                                 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2455                                 ioc->events[idx].eventContext = ioc->eventContext;
2456
2457                                 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2458                                         (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2459                                         (sc->device->channel << 8) | sc->device->id;
2460
2461                                 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2462
2463                                 ioc->eventContext++;
2464                                 if (ioc->pcidev->vendor ==
2465                                     PCI_VENDOR_ID_IBM) {
2466                                         mptscsih_issue_sep_command(ioc,
2467                                             vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2468                                         vdevice->vtarget->tflags |=
2469                                             MPT_TARGET_FLAGS_LED_ON;
2470                                 }
2471                         }
2472                 }
2473         } else {
2474                 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2475                                 ioc->name));
2476         }
2477 }
2478
2479 /**
2480  * mptscsih_get_scsi_lookup - retrieves scmd entry
2481  * @ioc: Pointer to MPT_ADAPTER structure
2482  * @i: index into the array
2483  *
2484  * Returns the scsi_cmd pointer
2485  */
2486 struct scsi_cmnd *
2487 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2488 {
2489         unsigned long   flags;
2490         struct scsi_cmnd *scmd;
2491
2492         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2493         scmd = ioc->ScsiLookup[i];
2494         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2495
2496         return scmd;
2497 }
2498 EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
2499
2500 /**
2501  * mptscsih_getclear_scsi_lookup -  retrieves and clears scmd entry from ScsiLookup[] array list
2502  * @ioc: Pointer to MPT_ADAPTER structure
2503  * @i: index into the array
2504  *
2505  * Returns the scsi_cmd pointer
2506  *
2507  **/
2508 static struct scsi_cmnd *
2509 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2510 {
2511         unsigned long   flags;
2512         struct scsi_cmnd *scmd;
2513
2514         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2515         scmd = ioc->ScsiLookup[i];
2516         ioc->ScsiLookup[i] = NULL;
2517         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2518
2519         return scmd;
2520 }
2521
2522 /**
2523  * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list
2524  *
2525  * @ioc: Pointer to MPT_ADAPTER structure
2526  * @i: index into the array
2527  * @scmd: scsi_cmnd pointer
2528  *
2529  **/
2530 static void
2531 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2532 {
2533         unsigned long   flags;
2534
2535         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2536         ioc->ScsiLookup[i] = scmd;
2537         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2538 }
2539
2540 /**
2541  * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2542  * @ioc: Pointer to MPT_ADAPTER structure
2543  * @sc: scsi_cmnd pointer
2544  */
2545 static int
2546 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2547 {
2548         unsigned long   flags;
2549         int i, index=-1;
2550
2551         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2552         for (i = 0; i < ioc->req_depth; i++) {
2553                 if (ioc->ScsiLookup[i] == sc) {
2554                         index = i;
2555                         goto out;
2556                 }
2557         }
2558
2559  out:
2560         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2561         return index;
2562 }
2563
2564 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2565 int
2566 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2567 {
2568         MPT_SCSI_HOST   *hd;
2569
2570         if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2571                 return 0;
2572
2573         hd = shost_priv(ioc->sh);
2574         switch (reset_phase) {
2575         case MPT_IOC_SETUP_RESET:
2576                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2577                     "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
2578                 break;
2579         case MPT_IOC_PRE_RESET:
2580                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2581                     "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
2582                 mptscsih_flush_running_cmds(hd);
2583                 break;
2584         case MPT_IOC_POST_RESET:
2585                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2586                     "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
2587                 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) {
2588                         ioc->internal_cmds.status |=
2589                                 MPT_MGMT_STATUS_DID_IOCRESET;
2590                         complete(&ioc->internal_cmds.done);
2591                 }
2592                 break;
2593         default:
2594                 break;
2595         }
2596         return 1;               /* currently means nothing really */
2597 }
2598
2599 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2600 int
2601 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2602 {
2603         u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2604
2605         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2606                 "MPT event (=%02Xh) routed to SCSI host driver!\n",
2607                 ioc->name, event));
2608
2609         if ((event == MPI_EVENT_IOC_BUS_RESET ||
2610             event == MPI_EVENT_EXT_BUS_RESET) &&
2611             (ioc->bus_type == SPI) && (ioc->soft_resets < -1))
2612                         ioc->soft_resets++;
2613
2614         return 1;               /* currently means nothing really */
2615 }
2616
2617 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2618 /*
2619  *  Bus Scan and Domain Validation functionality ...
2620  */
2621
2622 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2623 /*
2624  *      mptscsih_scandv_complete - Scan and DV callback routine registered
2625  *      to Fustion MPT (base) driver.
2626  *
2627  *      @ioc: Pointer to MPT_ADAPTER structure
2628  *      @mf: Pointer to original MPT request frame
2629  *      @mr: Pointer to MPT reply frame (NULL if TurboReply)
2630  *
2631  *      This routine is called from mpt.c::mpt_interrupt() at the completion
2632  *      of any SCSI IO request.
2633  *      This routine is registered with the Fusion MPT (base) driver at driver
2634  *      load/init time via the mpt_register() API call.
2635  *
2636  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2637  *
2638  *      Remark: Sets a completion code and (possibly) saves sense data
2639  *      in the IOC member localReply structure.
2640  *      Used ONLY for DV and other internal commands.
2641  */
2642 int
2643 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2644                                 MPT_FRAME_HDR *reply)
2645 {
2646         SCSIIORequest_t *pReq;
2647         SCSIIOReply_t   *pReply;
2648         u8               cmd;
2649         u16              req_idx;
2650         u8      *sense_data;
2651         int              sz;
2652
2653         ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2654         ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD;
2655         if (!reply)
2656                 goto out;
2657
2658         pReply = (SCSIIOReply_t *) reply;
2659         pReq = (SCSIIORequest_t *) req;
2660         ioc->internal_cmds.completion_code =
2661             mptscsih_get_completion_code(ioc, req, reply);
2662         ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2663         memcpy(ioc->internal_cmds.reply, reply,
2664             min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength));
2665         cmd = reply->u.hdr.Function;
2666         if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
2667             (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) &&
2668             (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
2669                 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
2670                 sense_data = ((u8 *)ioc->sense_buf_pool +
2671                     (req_idx * MPT_SENSE_BUFFER_ALLOC));
2672                 sz = min_t(int, pReq->SenseBufferLength,
2673                     MPT_SENSE_BUFFER_ALLOC);
2674                 memcpy(ioc->internal_cmds.sense, sense_data, sz);
2675         }
2676  out:
2677         if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING))
2678                 return 0;
2679         ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2680         complete(&ioc->internal_cmds.done);
2681         return 1;
2682 }
2683
2684
2685 /**
2686  *      mptscsih_get_completion_code - get completion code from MPT request
2687  *      @ioc: Pointer to MPT_ADAPTER structure
2688  *      @req: Pointer to original MPT request frame
2689  *      @reply: Pointer to MPT reply frame (NULL if TurboReply)
2690  *
2691  **/
2692 static int
2693 mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2694                                 MPT_FRAME_HDR *reply)
2695 {
2696         SCSIIOReply_t   *pReply;
2697         MpiRaidActionReply_t *pr;
2698         u8               scsi_status;
2699         u16              status;
2700         int              completion_code;
2701
2702         pReply = (SCSIIOReply_t *)reply;
2703         status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2704         scsi_status = pReply->SCSIStatus;
2705
2706         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2707             "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh,"
2708             "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState,
2709             scsi_status, le32_to_cpu(pReply->IOCLogInfo)));
2710
2711         switch (status) {
2712
2713         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
2714                 completion_code = MPT_SCANDV_SELECTION_TIMEOUT;
2715                 break;
2716
2717         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
2718         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
2719         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
2720         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
2721                 completion_code = MPT_SCANDV_DID_RESET;
2722                 break;
2723
2724         case MPI_IOCSTATUS_BUSY:
2725         case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
2726                 completion_code = MPT_SCANDV_BUSY;
2727                 break;
2728
2729         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
2730         case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
2731         case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
2732                 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2733                         completion_code = MPT_SCANDV_GOOD;
2734                 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2735                         pr = (MpiRaidActionReply_t *)reply;
2736                         if (le16_to_cpu(pr->ActionStatus) ==
2737                                 MPI_RAID_ACTION_ASTATUS_SUCCESS)
2738                                 completion_code = MPT_SCANDV_GOOD;
2739                         else
2740                                 completion_code = MPT_SCANDV_SOME_ERROR;
2741                 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)
2742                         completion_code = MPT_SCANDV_SENSE;
2743                 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2744                         if (req->u.scsireq.CDB[0] == INQUIRY)
2745                                 completion_code = MPT_SCANDV_ISSUE_SENSE;
2746                         else
2747                                 completion_code = MPT_SCANDV_DID_RESET;
2748                 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2749                         completion_code = MPT_SCANDV_DID_RESET;
2750                 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2751                         completion_code = MPT_SCANDV_DID_RESET;
2752                 else if (scsi_status == MPI_SCSI_STATUS_BUSY)
2753                         completion_code = MPT_SCANDV_BUSY;
2754                 else
2755                         completion_code = MPT_SCANDV_GOOD;
2756                 break;
2757
2758         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
2759                 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2760                         completion_code = MPT_SCANDV_DID_RESET;
2761                 else
2762                         completion_code = MPT_SCANDV_SOME_ERROR;
2763                 break;
2764         default:
2765                 completion_code = MPT_SCANDV_SOME_ERROR;
2766                 break;
2767
2768         }       /* switch(status) */
2769
2770         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2771             "  completionCode set to %08xh\n", ioc->name, completion_code));
2772         return completion_code;
2773 }
2774
2775 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2776 /**
2777  *      mptscsih_do_cmd - Do internal command.
2778  *      @hd: MPT_SCSI_HOST pointer
2779  *      @io: INTERNAL_CMD pointer.
2780  *
2781  *      Issue the specified internally generated command and do command
2782  *      specific cleanup. For bus scan / DV only.
2783  *      NOTES: If command is Inquiry and status is good,
2784  *      initialize a target structure, save the data
2785  *
2786  *      Remark: Single threaded access only.
2787  *
2788  *      Return:
2789  *              < 0 if an illegal command or no resources
2790  *
2791  *                 0 if good
2792  *
2793  *               > 0 if command complete but some type of completion error.
2794  */
2795 static int
2796 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2797 {
2798         MPT_FRAME_HDR   *mf;
2799         SCSIIORequest_t *pScsiReq;
2800         int              my_idx, ii, dir;
2801         int              timeout;
2802         char             cmdLen;
2803         char             CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2804         u8               cmd = io->cmd;
2805         MPT_ADAPTER *ioc = hd->ioc;
2806         int              ret = 0;
2807         unsigned long    timeleft;
2808         unsigned long    flags;
2809
2810         /* don't send internal command during diag reset */
2811         spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
2812         if (ioc->ioc_reset_in_progress) {
2813                 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2814                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2815                         "%s: busy with host reset\n", ioc->name, __func__));
2816                 return MPT_SCANDV_BUSY;
2817         }
2818         spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2819
2820         mutex_lock(&ioc->internal_cmds.mutex);
2821
2822         /* Set command specific information
2823          */
2824         switch (cmd) {
2825         case INQUIRY:
2826                 cmdLen = 6;
2827                 dir = MPI_SCSIIO_CONTROL_READ;
2828                 CDB[0] = cmd;
2829                 CDB[4] = io->size;
2830                 timeout = 10;
2831                 break;
2832
2833         case TEST_UNIT_READY:
2834                 cmdLen = 6;
2835                 dir = MPI_SCSIIO_CONTROL_READ;
2836                 timeout = 10;
2837                 break;
2838
2839         case START_STOP:
2840                 cmdLen = 6;
2841                 dir = MPI_SCSIIO_CONTROL_READ;
2842                 CDB[0] = cmd;
2843                 CDB[4] = 1;     /*Spin up the disk */
2844                 timeout = 15;
2845                 break;
2846
2847         case REQUEST_SENSE:
2848                 cmdLen = 6;
2849                 CDB[0] = cmd;
2850                 CDB[4] = io->size;
2851                 dir = MPI_SCSIIO_CONTROL_READ;
2852                 timeout = 10;
2853                 break;
2854
2855         case READ_BUFFER:
2856                 cmdLen = 10;
2857                 dir = MPI_SCSIIO_CONTROL_READ;
2858                 CDB[0] = cmd;
2859                 if (io->flags & MPT_ICFLAG_ECHO) {
2860                         CDB[1] = 0x0A;
2861                 } else {
2862                         CDB[1] = 0x02;
2863                 }
2864
2865                 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2866                         CDB[1] |= 0x01;
2867                 }
2868                 CDB[6] = (io->size >> 16) & 0xFF;
2869                 CDB[7] = (io->size >>  8) & 0xFF;
2870                 CDB[8] = io->size & 0xFF;
2871                 timeout = 10;
2872                 break;
2873
2874         case WRITE_BUFFER:
2875                 cmdLen = 10;
2876                 dir = MPI_SCSIIO_CONTROL_WRITE;
2877                 CDB[0] = cmd;
2878                 if (io->flags & MPT_ICFLAG_ECHO) {
2879                         CDB[1] = 0x0A;
2880                 } else {
2881                         CDB[1] = 0x02;
2882                 }
2883                 CDB[6] = (io->size >> 16) & 0xFF;
2884                 CDB[7] = (io->size >>  8) & 0xFF;
2885                 CDB[8] = io->size & 0xFF;
2886                 timeout = 10;
2887                 break;
2888
2889         case RESERVE:
2890                 cmdLen = 6;
2891                 dir = MPI_SCSIIO_CONTROL_READ;
2892                 CDB[0] = cmd;
2893                 timeout = 10;
2894                 break;
2895
2896         case RELEASE:
2897                 cmdLen = 6;
2898                 dir = MPI_SCSIIO_CONTROL_READ;
2899                 CDB[0] = cmd;
2900                 timeout = 10;
2901                 break;
2902
2903         case SYNCHRONIZE_CACHE:
2904                 cmdLen = 10;
2905                 dir = MPI_SCSIIO_CONTROL_READ;
2906                 CDB[0] = cmd;
2907 //              CDB[1] = 0x02;  /* set immediate bit */
2908                 timeout = 10;
2909                 break;
2910
2911         default:
2912                 /* Error Case */
2913                 ret = -EFAULT;
2914                 goto out;
2915         }
2916
2917         /* Get and Populate a free Frame
2918          * MsgContext set in mpt_get_msg_frame call
2919          */
2920         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
2921                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n",
2922                     ioc->name, __func__));
2923                 ret = MPT_SCANDV_BUSY;
2924                 goto out;
2925         }
2926
2927         pScsiReq = (SCSIIORequest_t *) mf;
2928
2929         /* Get the request index */
2930         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2931         ADD_INDEX_LOG(my_idx); /* for debug */
2932
2933         if (io->flags & MPT_ICFLAG_PHYS_DISK) {
2934                 pScsiReq->TargetID = io->physDiskNum;
2935                 pScsiReq->Bus = 0;
2936                 pScsiReq->ChainOffset = 0;
2937                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2938         } else {
2939                 pScsiReq->TargetID = io->id;
2940                 pScsiReq->Bus = io->channel;
2941                 pScsiReq->ChainOffset = 0;
2942                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2943         }
2944
2945         pScsiReq->CDBLength = cmdLen;
2946         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
2947
2948         pScsiReq->Reserved = 0;
2949
2950         pScsiReq->MsgFlags = mpt_msg_flags(ioc);
2951         /* MsgContext set in mpt_get_msg_fram call  */
2952
2953         int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
2954
2955         if (io->flags & MPT_ICFLAG_TAGGED_CMD)
2956                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
2957         else
2958                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2959
2960         if (cmd == REQUEST_SENSE) {
2961                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2962                 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2963                     "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd));
2964         }
2965
2966         for (ii = 0; ii < 16; ii++)
2967                 pScsiReq->CDB[ii] = CDB[ii];
2968
2969         pScsiReq->DataLength = cpu_to_le32(io->size);
2970         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
2971                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
2972
2973         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2974             "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%llu\n",
2975             ioc->name, __func__, cmd, io->channel, io->id, io->lun));
2976
2977         if (dir == MPI_SCSIIO_CONTROL_READ)
2978                 ioc->add_sge((char *) &pScsiReq->SGL,
2979                     MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma);
2980         else
2981                 ioc->add_sge((char *) &pScsiReq->SGL,
2982                     MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma);
2983
2984         INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
2985         mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
2986         timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done,
2987             timeout*HZ);
2988         if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2989                 ret = MPT_SCANDV_DID_RESET;
2990                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2991                     "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__,
2992                     cmd));
2993                 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2994                         mpt_free_msg_frame(ioc, mf);
2995                         goto out;
2996                 }
2997                 if (!timeleft) {
2998                         printk(MYIOC_s_WARN_FMT
2999                                "Issuing Reset from %s!! doorbell=0x%08xh"
3000                                " cmd=0x%02x\n",
3001                                ioc->name, __func__, mpt_GetIocState(ioc, 0),
3002                                cmd);
3003                         mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
3004                         mpt_free_msg_frame(ioc, mf);
3005                 }
3006                 goto out;
3007         }
3008
3009         ret = ioc->internal_cmds.completion_code;
3010         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n",
3011                         ioc->name, __func__, ret));
3012
3013  out:
3014         CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
3015         mutex_unlock(&ioc->internal_cmds.mutex);
3016         return ret;
3017 }
3018
3019 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3020 /**
3021  *      mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3022  *      @hd: Pointer to a SCSI HOST structure
3023  *      @vdevice: virtual target device
3024  *
3025  *      Uses the ISR, but with special processing.
3026  *      MUST be single-threaded.
3027  *
3028  */
3029 static void
3030 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3031 {
3032         INTERNAL_CMD             iocmd;
3033
3034         /* Ignore hidden raid components, this is handled when the command
3035          * is sent to the volume
3036          */
3037         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3038                 return;
3039
3040         if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3041             !vdevice->configured_lun)
3042                 return;
3043
3044         /* Following parameters will not change
3045          * in this routine.
3046          */
3047         iocmd.cmd = SYNCHRONIZE_CACHE;
3048         iocmd.flags = 0;
3049         iocmd.physDiskNum = -1;
3050         iocmd.data = NULL;
3051         iocmd.data_dma = -1;
3052         iocmd.size = 0;
3053         iocmd.rsvd = iocmd.rsvd2 = 0;
3054         iocmd.channel = vdevice->vtarget->channel;
3055         iocmd.id = vdevice->vtarget->id;
3056         iocmd.lun = vdevice->lun;
3057
3058         mptscsih_do_cmd(hd, &iocmd);
3059 }
3060
3061 static ssize_t
3062 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3063                          char *buf)
3064 {
3065         struct Scsi_Host *host = class_to_shost(dev);
3066         MPT_SCSI_HOST   *hd = shost_priv(host);
3067         MPT_ADAPTER *ioc = hd->ioc;
3068
3069         return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3070             (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3071             (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3072             (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3073             ioc->facts.FWVersion.Word & 0x000000FF);
3074 }
3075 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3076
3077 static ssize_t
3078 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3079                            char *buf)
3080 {
3081         struct Scsi_Host *host = class_to_shost(dev);
3082         MPT_SCSI_HOST   *hd = shost_priv(host);
3083         MPT_ADAPTER *ioc = hd->ioc;
3084
3085         return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3086             (ioc->biosVersion & 0xFF000000) >> 24,
3087             (ioc->biosVersion & 0x00FF0000) >> 16,
3088             (ioc->biosVersion & 0x0000FF00) >> 8,
3089             ioc->biosVersion & 0x000000FF);
3090 }
3091 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3092
3093 static ssize_t
3094 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3095                           char *buf)
3096 {
3097         struct Scsi_Host *host = class_to_shost(dev);
3098         MPT_SCSI_HOST   *hd = shost_priv(host);
3099         MPT_ADAPTER *ioc = hd->ioc;
3100
3101         return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3102 }
3103 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3104
3105 static ssize_t
3106 mptscsih_version_product_show(struct device *dev,
3107                               struct device_attribute *attr,
3108 char *buf)
3109 {
3110         struct Scsi_Host *host = class_to_shost(dev);
3111         MPT_SCSI_HOST   *hd = shost_priv(host);
3112         MPT_ADAPTER *ioc = hd->ioc;
3113
3114         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3115 }
3116 static DEVICE_ATTR(version_product, S_IRUGO,
3117     mptscsih_version_product_show, NULL);
3118
3119 static ssize_t
3120 mptscsih_version_nvdata_persistent_show(struct device *dev,
3121                                         struct device_attribute *attr,
3122                                         char *buf)
3123 {
3124         struct Scsi_Host *host = class_to_shost(dev);
3125         MPT_SCSI_HOST   *hd = shost_priv(host);
3126         MPT_ADAPTER *ioc = hd->ioc;
3127
3128         return snprintf(buf, PAGE_SIZE, "%02xh\n",
3129             ioc->nvdata_version_persistent);
3130 }
3131 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3132     mptscsih_version_nvdata_persistent_show, NULL);
3133
3134 static ssize_t
3135 mptscsih_version_nvdata_default_show(struct device *dev,
3136                                      struct device_attribute *attr, char *buf)
3137 {
3138         struct Scsi_Host *host = class_to_shost(dev);
3139         MPT_SCSI_HOST   *hd = shost_priv(host);
3140         MPT_ADAPTER *ioc = hd->ioc;
3141
3142         return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3143 }
3144 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3145     mptscsih_version_nvdata_default_show, NULL);
3146
3147 static ssize_t
3148 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3149                          char *buf)
3150 {
3151         struct Scsi_Host *host = class_to_shost(dev);
3152         MPT_SCSI_HOST   *hd = shost_priv(host);
3153         MPT_ADAPTER *ioc = hd->ioc;
3154
3155         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3156 }
3157 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3158
3159 static ssize_t
3160 mptscsih_board_assembly_show(struct device *dev,
3161                              struct device_attribute *attr, char *buf)
3162 {
3163         struct Scsi_Host *host = class_to_shost(dev);
3164         MPT_SCSI_HOST   *hd = shost_priv(host);
3165         MPT_ADAPTER *ioc = hd->ioc;
3166
3167         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3168 }
3169 static DEVICE_ATTR(board_assembly, S_IRUGO,
3170     mptscsih_board_assembly_show, NULL);
3171
3172 static ssize_t
3173 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3174                            char *buf)
3175 {
3176         struct Scsi_Host *host = class_to_shost(dev);
3177         MPT_SCSI_HOST   *hd = shost_priv(host);
3178         MPT_ADAPTER *ioc = hd->ioc;
3179
3180         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3181 }
3182 static DEVICE_ATTR(board_tracer, S_IRUGO,
3183     mptscsih_board_tracer_show, NULL);
3184
3185 static ssize_t
3186 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3187                        char *buf)
3188 {
3189         struct Scsi_Host *host = class_to_shost(dev);
3190         MPT_SCSI_HOST   *hd = shost_priv(host);
3191         MPT_ADAPTER *ioc = hd->ioc;
3192
3193         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3194 }
3195 static DEVICE_ATTR(io_delay, S_IRUGO,
3196     mptscsih_io_delay_show, NULL);
3197
3198 static ssize_t
3199 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3200                            char *buf)
3201 {
3202         struct Scsi_Host *host = class_to_shost(dev);
3203         MPT_SCSI_HOST   *hd = shost_priv(host);
3204         MPT_ADAPTER *ioc = hd->ioc;
3205
3206         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3207 }
3208 static DEVICE_ATTR(device_delay, S_IRUGO,
3209     mptscsih_device_delay_show, NULL);
3210
3211 static ssize_t
3212 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3213                           char *buf)
3214 {
3215         struct Scsi_Host *host = class_to_shost(dev);
3216         MPT_SCSI_HOST   *hd = shost_priv(host);
3217         MPT_ADAPTER *ioc = hd->ioc;
3218
3219         return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3220 }
3221 static ssize_t
3222 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3223                            const char *buf, size_t count)
3224 {
3225         struct Scsi_Host *host = class_to_shost(dev);
3226         MPT_SCSI_HOST   *hd = shost_priv(host);
3227         MPT_ADAPTER *ioc = hd->ioc;
3228         int val = 0;
3229
3230         if (sscanf(buf, "%x", &val) != 1)
3231                 return -EINVAL;
3232
3233         ioc->debug_level = val;
3234         printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3235                                 ioc->name, ioc->debug_level);
3236         return strlen(buf);
3237 }
3238 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3239         mptscsih_debug_level_show, mptscsih_debug_level_store);
3240
3241 struct device_attribute *mptscsih_host_attrs[] = {
3242         &dev_attr_version_fw,
3243         &dev_attr_version_bios,
3244         &dev_attr_version_mpi,
3245         &dev_attr_version_product,
3246         &dev_attr_version_nvdata_persistent,
3247         &dev_attr_version_nvdata_default,
3248         &dev_attr_board_name,
3249         &dev_attr_board_assembly,
3250         &dev_attr_board_tracer,
3251         &dev_attr_io_delay,
3252         &dev_attr_device_delay,
3253         &dev_attr_debug_level,
3254         NULL,
3255 };
3256
3257 EXPORT_SYMBOL(mptscsih_host_attrs);
3258
3259 EXPORT_SYMBOL(mptscsih_remove);
3260 EXPORT_SYMBOL(mptscsih_shutdown);
3261 #ifdef CONFIG_PM
3262 EXPORT_SYMBOL(mptscsih_suspend);
3263 EXPORT_SYMBOL(mptscsih_resume);
3264 #endif
3265 EXPORT_SYMBOL(mptscsih_show_info);
3266 EXPORT_SYMBOL(mptscsih_info);
3267 EXPORT_SYMBOL(mptscsih_qcmd);
3268 EXPORT_SYMBOL(mptscsih_slave_destroy);
3269 EXPORT_SYMBOL(mptscsih_slave_configure);
3270 EXPORT_SYMBOL(mptscsih_abort);
3271 EXPORT_SYMBOL(mptscsih_dev_reset);
3272 EXPORT_SYMBOL(mptscsih_bus_reset);
3273 EXPORT_SYMBOL(mptscsih_host_reset);
3274 EXPORT_SYMBOL(mptscsih_bios_param);
3275 EXPORT_SYMBOL(mptscsih_io_done);
3276 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3277 EXPORT_SYMBOL(mptscsih_scandv_complete);
3278 EXPORT_SYMBOL(mptscsih_event_process);
3279 EXPORT_SYMBOL(mptscsih_ioc_reset);
3280 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3281
3282 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/