drivers/message/fusion/mptscsih.c

   1 /*
   2  *  linux/drivers/message/fusion/mptscsih.c
   3  *      For use with LSI PCI chip/adapter(s)
   4  *      running LSI Fusion MPT (Message Passing Technology) firmware.
   5  *
   6  *  Copyright (c) 1999-2008 LSI Corporation
   7  *  (mailto:DL-MPTFusionLinux@lsi.com)
   8  *
   9  */
  10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  11 /*
  12     This program is free software; you can redistribute it and/or modify
  13     it under the terms of the GNU General Public License as published by
  14     the Free Software Foundation; version 2 of the License.
  15
  16     This program is distributed in the hope that it will be useful,
  17     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19     GNU General Public License for more details.
  20
  21     NO WARRANTY
  22     THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
  23     CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
  24     LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
  25     MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
  26     solely responsible for determining the appropriateness of using and
  27     distributing the Program and assumes all risks associated with its
  28     exercise of rights under this Agreement, including but not limited to
  29     the risks and costs of program errors, damage to or loss of data,
  30     programs or equipment, and unavailability or interruption of operations.
  31
  32     DISCLAIMER OF LIABILITY
  33     NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
  34     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35     DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
  36     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  37     TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  38     USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
  39     HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
  40
  41     You should have received a copy of the GNU General Public License
  42     along with this program; if not, write to the Free Software
  43     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  44 */
  45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  46
  47 #include <linux/module.h>
  48 #include <linux/kernel.h>
  49 #include <linux/slab.h>
  50 #include <linux/init.h>
  51 #include <linux/errno.h>
  52 #include <linux/kdev_t.h>
  53 #include <linux/blkdev.h>
  54 #include <linux/delay.h>        /* for mdelay */
  55 #include <linux/interrupt.h>    /* needed for in_interrupt() proto */
  56 #include <linux/reboot.h>       /* notifier code */
  57 #include <linux/workqueue.h>
  58
  59 #include <scsi/scsi.h>
  60 #include <scsi/scsi_cmnd.h>
  61 #include <scsi/scsi_device.h>
  62 #include <scsi/scsi_host.h>
  63 #include <scsi/scsi_tcq.h>
  64 #include <scsi/scsi_dbg.h>
  65
  66 #include "mptbase.h"
  67 #include "mptscsih.h"
  68 #include "lsi/mpi_log_sas.h"
  69
  70 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  71 #define my_NAME         "Fusion MPT SCSI Host driver"
  72 #define my_VERSION      MPT_LINUX_VERSION_COMMON
  73 #define MYNAM           "mptscsih"
  74
  75 MODULE_AUTHOR(MODULEAUTHOR);
  76 MODULE_DESCRIPTION(my_NAME);
  77 MODULE_LICENSE("GPL");
  78 MODULE_VERSION(my_VERSION);
  79
  80 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  81 /*
  82  *  Other private/forward protos...
  83  */
  84 struct scsi_cmnd        *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
  85 static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i);
  86 static void     mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd);
  87 static int      SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd);
  88 int             mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
  89 static void     mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
  90 int             mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
  91
  92 static int      mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
  93                                  SCSIIORequest_t *pReq, int req_idx);
  94 static void     mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
  95 static void     mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
  96
  97 int     mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id,
  98                 int lun, int ctx2abort, ulong timeout);
  99
 100 int             mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
 101 int             mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
 102
 103 void
 104 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code);
 105 static int      mptscsih_get_completion_code(MPT_ADAPTER *ioc,
 106                 MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply);
 107 int             mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
 108 static int      mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
 109 static void     mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
 110
 111 static int
 112 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
 113                                 SCSITaskMgmtReply_t *pScsiTmReply);
 114 void            mptscsih_remove(struct pci_dev *);
 115 void            mptscsih_shutdown(struct pci_dev *);
 116 #ifdef CONFIG_PM
 117 int             mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
 118 int             mptscsih_resume(struct pci_dev *pdev);
 119 #endif
 120
 121 #define SNS_LEN(scp)    SCSI_SENSE_BUFFERSIZE
 122
 123
 124 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 125 /*
 126  *      mptscsih_getFreeChainBuffer - Function to get a free chain
 127  *      from the MPT_SCSI_HOST FreeChainQ.
 128  *      @ioc: Pointer to MPT_ADAPTER structure
 129  *      @req_idx: Index of the SCSI IO request frame. (output)
 130  *
 131  *      return SUCCESS or FAILED
 132  */
 133 static inline int
 134 mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
 135 {
 136         MPT_FRAME_HDR *chainBuf;
 137         unsigned long flags;
 138         int rc;
 139         int chain_idx;
 140
 141         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n",
 142             ioc->name));
 143         spin_lock_irqsave(&ioc->FreeQlock, flags);
 144         if (!list_empty(&ioc->FreeChainQ)) {
 145                 int offset;
 146
 147                 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR,
 148                                 u.frame.linkage.list);
 149                 list_del(&chainBuf->u.frame.linkage.list);
 150                 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer;
 151                 chain_idx = offset / ioc->req_sz;
 152                 rc = SUCCESS;
 153                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 154                     "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n",
 155                     ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx));
 156         } else {
 157                 rc = FAILED;
 158                 chain_idx = MPT_HOST_NO_CHAIN;
 159                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n",
 160                     ioc->name));
 161         }
 162         spin_unlock_irqrestore(&ioc->FreeQlock, flags);
 163
 164         *retIndex = chain_idx;
 165         return rc;
 166 } /* mptscsih_getFreeChainBuffer() */
 167
 168 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 169 /*
 170  *      mptscsih_AddSGE - Add a SGE (plus chain buffers) to the
 171  *      SCSIIORequest_t Message Frame.
 172  *      @ioc: Pointer to MPT_ADAPTER structure
 173  *      @SCpnt: Pointer to scsi_cmnd structure
 174  *      @pReq: Pointer to SCSIIORequest_t structure
 175  *
 176  *      Returns ...
 177  */
 178 static int
 179 mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
 180                 SCSIIORequest_t *pReq, int req_idx)
 181 {
 182         char    *psge;
 183         char    *chainSge;
 184         struct scatterlist *sg;
 185         int      frm_sz;
 186         int      sges_left, sg_done;
 187         int      chain_idx = MPT_HOST_NO_CHAIN;
 188         int      sgeOffset;
 189         int      numSgeSlots, numSgeThisFrame;
 190         u32      sgflags, sgdir, thisxfer = 0;
 191         int      chain_dma_off = 0;
 192         int      newIndex;
 193         int      ii;
 194         dma_addr_t v2;
 195         u32     RequestNB;
 196
 197         sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
 198         if (sgdir == MPI_SCSIIO_CONTROL_WRITE)  {
 199                 sgdir = MPT_TRANSFER_HOST_TO_IOC;
 200         } else {
 201                 sgdir = MPT_TRANSFER_IOC_TO_HOST;
 202         }
 203
 204         psge = (char *) &pReq->SGL;
 205         frm_sz = ioc->req_sz;
 206
 207         /* Map the data portion, if any.
 208          * sges_left  = 0 if no data transfer.
 209          */
 210         sges_left = scsi_dma_map(SCpnt);
 211         if (sges_left < 0)
 212                 return FAILED;
 213
 214         /* Handle the SG case.
 215          */
 216         sg = scsi_sglist(SCpnt);
 217         sg_done  = 0;
 218         sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION);
 219         chainSge = NULL;
 220
 221         /* Prior to entering this loop - the following must be set
 222          * current MF:  sgeOffset (bytes)
 223          *              chainSge (Null if original MF is not a chain buffer)
 224          *              sg_done (num SGE done for this MF)
 225          */
 226
 227 nextSGEset:
 228         numSgeSlots = ((frm_sz - sgeOffset) / ioc->SGE_size);
 229         numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
 230
 231         sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | sgdir;
 232
 233         /* Get first (num - 1) SG elements
 234          * Skip any SG entries with a length of 0
 235          * NOTE: at finish, sg and psge pointed to NEXT data/location positions
 236          */
 237         for (ii=0; ii < (numSgeThisFrame-1); ii++) {
 238                 thisxfer = sg_dma_len(sg);
 239                 if (thisxfer == 0) {
 240                         /* Get next SG element from the OS */
 241                         sg = sg_next(sg);
 242                         sg_done++;
 243                         continue;
 244                 }
 245
 246                 v2 = sg_dma_address(sg);
 247                 ioc->add_sge(psge, sgflags | thisxfer, v2);
 248
 249                 /* Get next SG element from the OS */
 250                 sg = sg_next(sg);
 251                 psge += ioc->SGE_size;
 252                 sgeOffset += ioc->SGE_size;
 253                 sg_done++;
 254         }
 255
 256         if (numSgeThisFrame == sges_left) {
 257                 /* Add last element, end of buffer and end of list flags.
 258                  */
 259                 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT |
 260                                 MPT_SGE_FLAGS_END_OF_BUFFER |
 261                                 MPT_SGE_FLAGS_END_OF_LIST;
 262
 263                 /* Add last SGE and set termination flags.
 264                  * Note: Last SGE may have a length of 0 - which should be ok.
 265                  */
 266                 thisxfer = sg_dma_len(sg);
 267
 268                 v2 = sg_dma_address(sg);
 269                 ioc->add_sge(psge, sgflags | thisxfer, v2);
 270                 sgeOffset += ioc->SGE_size;
 271                 sg_done++;
 272
 273                 if (chainSge) {
 274                         /* The current buffer is a chain buffer,
 275                          * but there is not another one.
 276                          * Update the chain element
 277                          * Offset and Length fields.
 278                          */
 279                         ioc->add_chain((char *)chainSge, 0, sgeOffset,
 280                                 ioc->ChainBufferDMA + chain_dma_off);
 281                 } else {
 282                         /* The current buffer is the original MF
 283                          * and there is no Chain buffer.
 284                          */
 285                         pReq->ChainOffset = 0;
 286                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
 287                         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 288                             "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
 289                         ioc->RequestNB[req_idx] = RequestNB;
 290                 }
 291         } else {
 292                 /* At least one chain buffer is needed.
 293                  * Complete the first MF
 294                  *  - last SGE element, set the LastElement bit
 295                  *  - set ChainOffset (words) for orig MF
 296                  *             (OR finish previous MF chain buffer)
 297                  *  - update MFStructPtr ChainIndex
 298                  *  - Populate chain element
 299                  * Also
 300                  * Loop until done.
 301                  */
 302
 303                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n",
 304                                 ioc->name, sg_done));
 305
 306                 /* Set LAST_ELEMENT flag for last non-chain element
 307                  * in the buffer. Since psge points at the NEXT
 308                  * SGE element, go back one SGE element, update the flags
 309                  * and reset the pointer. (Note: sgflags & thisxfer are already
 310                  * set properly).
 311                  */
 312                 if (sg_done) {
 313                         u32 *ptmp = (u32 *) (psge - ioc->SGE_size);
 314                         sgflags = le32_to_cpu(*ptmp);
 315                         sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT;
 316                         *ptmp = cpu_to_le32(sgflags);
 317                 }
 318
 319                 if (chainSge) {
 320                         /* The current buffer is a chain buffer.
 321                          * chainSge points to the previous Chain Element.
 322                          * Update its chain element Offset and Length (must
 323                          * include chain element size) fields.
 324                          * Old chain element is now complete.
 325                          */
 326                         u8 nextChain = (u8) (sgeOffset >> 2);
 327                         sgeOffset += ioc->SGE_size;
 328                         ioc->add_chain((char *)chainSge, nextChain, sgeOffset,
 329                                          ioc->ChainBufferDMA + chain_dma_off);
 330                 } else {
 331                         /* The original MF buffer requires a chain buffer -
 332                          * set the offset.
 333                          * Last element in this MF is a chain element.
 334                          */
 335                         pReq->ChainOffset = (u8) (sgeOffset >> 2);
 336                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
 337                         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
 338                         ioc->RequestNB[req_idx] = RequestNB;
 339                 }
 340
 341                 sges_left -= sg_done;
 342
 343
 344                 /* NOTE: psge points to the beginning of the chain element
 345                  * in current buffer. Get a chain buffer.
 346                  */
 347                 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
 348                         dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 349                             "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
 350                             ioc->name, pReq->CDB[0], SCpnt));
 351                         return FAILED;
 352                 }
 353
 354                 /* Update the tracking arrays.
 355                  * If chainSge == NULL, update ReqToChain, else ChainToChain
 356                  */
 357                 if (chainSge) {
 358                         ioc->ChainToChain[chain_idx] = newIndex;
 359                 } else {
 360                         ioc->ReqToChain[req_idx] = newIndex;
 361                 }
 362                 chain_idx = newIndex;
 363                 chain_dma_off = ioc->req_sz * chain_idx;
 364
 365                 /* Populate the chainSGE for the current buffer.
 366                  * - Set chain buffer pointer to psge and fill
 367                  *   out the Address and Flags fields.
 368                  */
 369                 chainSge = (char *) psge;
 370                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "  Current buff @ %p (index 0x%x)",
 371                     ioc->name, psge, req_idx));
 372
 373                 /* Start the SGE for the next buffer
 374                  */
 375                 psge = (char *) (ioc->ChainBuffer + chain_dma_off);
 376                 sgeOffset = 0;
 377                 sg_done = 0;
 378
 379                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "  Chain buff @ %p (index 0x%x)\n",
 380                     ioc->name, psge, chain_idx));
 381
 382                 /* Start the SGE for the next buffer
 383                  */
 384
 385                 goto nextSGEset;
 386         }
 387
 388         return SUCCESS;
 389 } /* mptscsih_AddSGE() */
 390
 391 static void
 392 mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
 393     U32 SlotStatus)
 394 {
 395         MPT_FRAME_HDR *mf;
 396         SEPRequest_t     *SEPMsg;
 397
 398         if (ioc->bus_type != SAS)
 399                 return;
 400
 401         /* Not supported for hidden raid components
 402          */
 403         if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
 404                 return;
 405
 406         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
 407                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
 408                     ioc->name,__func__));
 409                 return;
 410         }
 411
 412         SEPMsg = (SEPRequest_t *)mf;
 413         SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
 414         SEPMsg->Bus = vtarget->channel;
 415         SEPMsg->TargetID = vtarget->id;
 416         SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
 417         SEPMsg->SlotStatus = SlotStatus;
 418         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 419             "Sending SEP cmd=%x channel=%d id=%d\n",
 420             ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
 421         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
 422 }
 423
 424 #ifdef CONFIG_FUSION_LOGGING
 425 /**
 426  *      mptscsih_info_scsiio - debug print info on reply frame
 427  *      @ioc: Pointer to MPT_ADAPTER structure
 428  *      @sc: original scsi cmnd pointer
 429  *      @pScsiReply: Pointer to MPT reply frame
 430  *
 431  *      MPT_DEBUG_REPLY needs to be enabled to obtain this info
 432  *
 433  *      Refer to lsi/mpi.h.
 434  **/
 435 static void
 436 mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
 437 {
 438         char    *desc = NULL;
 439         char    *desc1 = NULL;
 440         u16     ioc_status;
 441         u8      skey, asc, ascq;
 442
 443         ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
 444
 445         switch (ioc_status) {
 446
 447         case MPI_IOCSTATUS_SUCCESS:
 448                 desc = "success";
 449                 break;
 450         case MPI_IOCSTATUS_SCSI_INVALID_BUS:
 451                 desc = "invalid bus";
 452                 break;
 453         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
 454                 desc = "invalid target_id";
 455                 break;
 456         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
 457                 desc = "device not there";
 458                 break;
 459         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
 460                 desc = "data overrun";
 461                 break;
 462         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
 463                 desc = "data underrun";
 464                 break;
 465         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
 466                 desc = "I/O data error";
 467                 break;
 468         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
 469                 desc = "protocol error";
 470                 break;
 471         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
 472                 desc = "task terminated";
 473                 break;
 474         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
 475                 desc = "residual mismatch";
 476                 break;
 477         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
 478                 desc = "task management failed";
 479                 break;
 480         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
 481                 desc = "IOC terminated";
 482                 break;
 483         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
 484                 desc = "ext terminated";
 485                 break;
 486         default:
 487                 desc = "";
 488                 break;
 489         }
 490
 491         switch (pScsiReply->SCSIStatus)
 492         {
 493
 494         case MPI_SCSI_STATUS_SUCCESS:
 495                 desc1 = "success";
 496                 break;
 497         case MPI_SCSI_STATUS_CHECK_CONDITION:
 498                 desc1 = "check condition";
 499                 break;
 500         case MPI_SCSI_STATUS_CONDITION_MET:
 501                 desc1 = "condition met";
 502                 break;
 503         case MPI_SCSI_STATUS_BUSY:
 504                 desc1 = "busy";
 505                 break;
 506         case MPI_SCSI_STATUS_INTERMEDIATE:
 507                 desc1 = "intermediate";
 508                 break;
 509         case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET:
 510                 desc1 = "intermediate condmet";
 511                 break;
 512         case MPI_SCSI_STATUS_RESERVATION_CONFLICT:
 513                 desc1 = "reservation conflict";
 514                 break;
 515         case MPI_SCSI_STATUS_COMMAND_TERMINATED:
 516                 desc1 = "command terminated";
 517                 break;
 518         case MPI_SCSI_STATUS_TASK_SET_FULL:
 519                 desc1 = "task set full";
 520                 break;
 521         case MPI_SCSI_STATUS_ACA_ACTIVE:
 522                 desc1 = "aca active";
 523                 break;
 524         case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT:
 525                 desc1 = "fcpext device logged out";
 526                 break;
 527         case MPI_SCSI_STATUS_FCPEXT_NO_LINK:
 528                 desc1 = "fcpext no link";
 529                 break;
 530         case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED:
 531                 desc1 = "fcpext unassigned";
 532                 break;
 533         default:
 534                 desc1 = "";
 535                 break;
 536         }
 537
 538         scsi_print_command(sc);
 539         printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %d\n",
 540             ioc->name, pScsiReply->Bus, pScsiReply->TargetID, sc->device->lun);
 541         printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
 542             "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
 543             scsi_get_resid(sc));
 544         printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, "
 545             "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag),
 546             le32_to_cpu(pScsiReply->TransferCount), sc->result);
 547
 548         printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), "
 549             "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
 550             ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus,
 551             pScsiReply->SCSIState);
 552
 553         if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
 554                 skey = sc->sense_buffer[2] & 0x0F;
 555                 asc = sc->sense_buffer[12];
 556                 ascq = sc->sense_buffer[13];
 557
 558                 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: "
 559                     "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq);
 560         }
 561
 562         /*
 563          *  Look for + dump FCP ResponseInfo[]!
 564          */
 565         if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
 566             pScsiReply->ResponseInfo)
 567                 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n",
 568                     ioc->name, le32_to_cpu(pScsiReply->ResponseInfo));
 569 }
 570 #endif
 571
 572 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 573 /*
 574  *      mptscsih_io_done - Main SCSI IO callback routine registered to
 575  *      Fusion MPT (base) driver
 576  *      @ioc: Pointer to MPT_ADAPTER structure
 577  *      @mf: Pointer to original MPT request frame
 578  *      @r: Pointer to MPT reply frame (NULL if TurboReply)
 579  *
 580  *      This routine is called from mpt.c::mpt_interrupt() at the completion
 581  *      of any SCSI IO request.
 582  *      This routine is registered with the Fusion MPT (base) driver at driver
 583  *      load/init time via the mpt_register() API call.
 584  *
 585  *      Returns 1 indicating alloc'd request frame ptr should be freed.
 586  */
 587 int
 588 mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
 589 {
 590         struct scsi_cmnd        *sc;
 591         MPT_SCSI_HOST   *hd;
 592         SCSIIORequest_t *pScsiReq;
 593         SCSIIOReply_t   *pScsiReply;
 594         u16              req_idx, req_idx_MR;
 595         VirtDevice       *vdevice;
 596         VirtTarget       *vtarget;
 597
 598         hd = shost_priv(ioc->sh);
 599         req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
 600         req_idx_MR = (mr != NULL) ?
 601             le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
 602
 603         /* Special case, where already freed message frame is received from
 604          * Firmware. It happens with Resetting IOC.
 605          * Return immediately. Do not care
 606          */
 607         if ((req_idx != req_idx_MR) ||
 608             (le32_to_cpu(mf->u.frame.linkage.arg1) == 0xdeadbeaf))
 609                 return 0;
 610
 611         sc = mptscsih_getclear_scsi_lookup(ioc, req_idx);
 612         if (sc == NULL) {
 613                 MPIHeader_t *hdr = (MPIHeader_t *)mf;
 614
 615                 /* Remark: writeSDP1 will use the ScsiDoneCtx
 616                  * If a SCSI I/O cmd, device disabled by OS and
 617                  * completion done. Cannot touch sc struct. Just free mem.
 618                  */
 619                 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST)
 620                         printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n",
 621                         ioc->name);
 622
 623                 mptscsih_freeChainBuffers(ioc, req_idx);
 624                 return 1;
 625         }
 626
 627         if ((unsigned char *)mf != sc->host_scribble) {
 628                 mptscsih_freeChainBuffers(ioc, req_idx);
 629                 return 1;
 630         }
 631
 632         if (ioc->bus_type == SAS) {
 633                 VirtDevice *vdevice = sc->device->hostdata;
 634
 635                 if (!vdevice || !vdevice->vtarget ||
 636                     vdevice->vtarget->deleted) {
 637                         sc->result = DID_NO_CONNECT << 16;
 638                         goto out;
 639                 }
 640         }
 641
 642         sc->host_scribble = NULL;
 643         sc->result = DID_OK << 16;              /* Set default reply as OK */
 644         pScsiReq = (SCSIIORequest_t *) mf;
 645         pScsiReply = (SCSIIOReply_t *) mr;
 646
 647         if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
 648                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 649                         "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n",
 650                         ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag));
 651         }else{
 652                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 653                         "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
 654                         ioc->name, mf, mr, sc, req_idx));
 655         }
 656
 657         if (pScsiReply == NULL) {
 658                 /* special context reply handling */
 659                 ;
 660         } else {
 661                 u32      xfer_cnt;
 662                 u16      status;
 663                 u8       scsi_state, scsi_status;
 664                 u32      log_info;
 665
 666                 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
 667
 668                 scsi_state = pScsiReply->SCSIState;
 669                 scsi_status = pScsiReply->SCSIStatus;
 670                 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
 671                 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
 672                 log_info = le32_to_cpu(pScsiReply->IOCLogInfo);
 673
 674                 /*
 675                  *  if we get a data underrun indication, yet no data was
 676                  *  transferred and the SCSI status indicates that the
 677                  *  command was never started, change the data underrun
 678                  *  to success
 679                  */
 680                 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
 681                     (scsi_status == MPI_SCSI_STATUS_BUSY ||
 682                      scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT ||
 683                      scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) {
 684                         status = MPI_IOCSTATUS_SUCCESS;
 685                 }
 686
 687                 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
 688                         mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);
 689
 690                 /*
 691                  *  Look for + dump FCP ResponseInfo[]!
 692                  */
 693                 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
 694                     pScsiReply->ResponseInfo) {
 695                         printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%d] "
 696                         "FCP_ResponseInfo=%08xh\n", ioc->name,
 697                         sc->device->host->host_no, sc->device->channel,
 698                         sc->device->id, sc->device->lun,
 699                         le32_to_cpu(pScsiReply->ResponseInfo));
 700                 }
 701
 702                 switch(status) {
 703                 case MPI_IOCSTATUS_BUSY:                        /* 0x0002 */
 704                 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:      /* 0x0006 */
 705                         /* CHECKME!
 706                          * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry)
 707                          * But not: DID_BUS_BUSY lest one risk
 708                          * killing interrupt handler:-(
 709                          */
 710                         sc->result = SAM_STAT_BUSY;
 711                         break;
 712
 713                 case MPI_IOCSTATUS_SCSI_INVALID_BUS:            /* 0x0041 */
 714                 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:       /* 0x0042 */
 715                         sc->result = DID_BAD_TARGET << 16;
 716                         break;
 717
 718                 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
 719                         /* Spoof to SCSI Selection Timeout! */
 720                         if (ioc->bus_type != FC)
 721                                 sc->result = DID_NO_CONNECT << 16;
 722                         /* else fibre, just stall until rescan event */
 723                         else
 724                                 sc->result = DID_REQUEUE << 16;
 725
 726                         if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
 727                                 hd->sel_timeout[pScsiReq->TargetID]++;
 728
 729                         vdevice = sc->device->hostdata;
 730                         if (!vdevice)
 731                                 break;
 732                         vtarget = vdevice->vtarget;
 733                         if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) {
 734                                 mptscsih_issue_sep_command(ioc, vtarget,
 735                                     MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED);
 736                                 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON;
 737                         }
 738                         break;
 739
 740                 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
 741                         if ( ioc->bus_type == SAS ) {
 742                                 u16 ioc_status =
 743                                     le16_to_cpu(pScsiReply->IOCStatus);
 744                                 if ((ioc_status &
 745                                         MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
 746                                         &&
 747                                         ((log_info & SAS_LOGINFO_MASK) ==
 748                                         SAS_LOGINFO_NEXUS_LOSS)) {
 749                                                 VirtDevice *vdevice =
 750                                                 sc->device->hostdata;
 751
 752                                             /* flag the device as being in
 753                                              * device removal delay so we can
 754                                              * notify the midlayer to hold off
 755                                              * on timeout eh */
 756                                                 if (vdevice && vdevice->
 757                                                         vtarget &&
 758                                                         vdevice->vtarget->
 759                                                         raidVolume)
 760                                                         printk(KERN_INFO
 761                                                         "Skipping Raid Volume"
 762                                                         "for inDMD\n");
 763                                                 else if (vdevice &&
 764                                                         vdevice->vtarget)
 765                                                         vdevice->vtarget->
 766                                                                 inDMD = 1;
 767
 768                                             sc->result =
 769                                                     (DID_TRANSPORT_DISRUPTED
 770                                                     << 16);
 771                                             break;
 772                                 }
 773                         } else if (ioc->bus_type == FC) {
 774                                 /*
 775                                  * The FC IOC may kill a request for variety of
 776                                  * reasons, some of which may be recovered by a
 777                                  * retry, some which are unlikely to be
 778                                  * recovered. Return DID_ERROR instead of
 779                                  * DID_RESET to permit retry of the command,
 780                                  * just not an infinite number of them
 781                                  */
 782                                 sc->result = DID_ERROR << 16;
 783                                 break;
 784                         }
 785
 786                         /*
 787                          * Allow non-SAS & non-NEXUS_LOSS to drop into below code
 788                          */
 789
 790                 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
 791                         /* Linux handles an unsolicited DID_RESET better
 792                          * than an unsolicited DID_ABORT.
 793                          */
 794                         sc->result = DID_RESET << 16;
 795                         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:%d) 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  *      @done: Pointer SCSI mid-layer IO completion function
1308  *
1309  *      (linux scsi_host_template.queuecommand routine)
1310  *      This is the primary SCSI IO start routine.  Create a MPI SCSIIORequest
1311  *      from a linux scsi_cmnd request and send it to the IOC.
1312  *
1313  *      Returns 0. (rtn value discarded by linux scsi mid-layer)
1314  */
1315 int
1316 mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1317 {
1318         MPT_SCSI_HOST           *hd;
1319         MPT_FRAME_HDR           *mf;
1320         SCSIIORequest_t         *pScsiReq;
1321         VirtDevice              *vdevice = SCpnt->device->hostdata;
1322         u32      datalen;
1323         u32      scsictl;
1324         u32      scsidir;
1325         u32      cmd_len;
1326         int      my_idx;
1327         int      ii;
1328         MPT_ADAPTER *ioc;
1329
1330         hd = shost_priv(SCpnt->device->host);
1331         ioc = hd->ioc;
1332         SCpnt->scsi_done = done;
1333
1334         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
1335                 ioc->name, SCpnt, done));
1336
1337         if (ioc->taskmgmt_quiesce_io)
1338                 return SCSI_MLQUEUE_HOST_BUSY;
1339
1340         /*
1341          *  Put together a MPT SCSI request...
1342          */
1343         if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1344                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1345                                 ioc->name));
1346                 return SCSI_MLQUEUE_HOST_BUSY;
1347         }
1348
1349         pScsiReq = (SCSIIORequest_t *) mf;
1350
1351         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1352
1353         ADD_INDEX_LOG(my_idx);
1354
1355         /*    TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1356          *    Seems we may receive a buffer (datalen>0) even when there
1357          *    will be no data transfer!  GRRRRR...
1358          */
1359         if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1360                 datalen = scsi_bufflen(SCpnt);
1361                 scsidir = MPI_SCSIIO_CONTROL_READ;      /* DATA IN  (host<--ioc<--dev) */
1362         } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1363                 datalen = scsi_bufflen(SCpnt);
1364                 scsidir = MPI_SCSIIO_CONTROL_WRITE;     /* DATA OUT (host-->ioc-->dev) */
1365         } else {
1366                 datalen = 0;
1367                 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1368         }
1369
1370         /* Default to untagged. Once a target structure has been allocated,
1371          * use the Inquiry data to determine if device supports tagged.
1372          */
1373         if (vdevice
1374             && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1375             && (SCpnt->device->tagged_supported)) {
1376                 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1377                 if (SCpnt->request && SCpnt->request->ioprio) {
1378                         if (((SCpnt->request->ioprio & 0x7) == 1) ||
1379                                 !(SCpnt->request->ioprio & 0x7))
1380                                 scsictl |= MPI_SCSIIO_CONTROL_HEADOFQ;
1381                 }
1382         } else
1383                 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1384
1385
1386         /* Use the above information to set up the message frame
1387          */
1388         pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1389         pScsiReq->Bus = vdevice->vtarget->channel;
1390         pScsiReq->ChainOffset = 0;
1391         if (vdevice->vtarget->tflags &  MPT_TARGET_FLAGS_RAID_COMPONENT)
1392                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1393         else
1394                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1395         pScsiReq->CDBLength = SCpnt->cmd_len;
1396         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1397         pScsiReq->Reserved = 0;
1398         pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1399         int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1400         pScsiReq->Control = cpu_to_le32(scsictl);
1401
1402         /*
1403          *  Write SCSI CDB into the message
1404          */
1405         cmd_len = SCpnt->cmd_len;
1406         for (ii=0; ii < cmd_len; ii++)
1407                 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1408
1409         for (ii=cmd_len; ii < 16; ii++)
1410                 pScsiReq->CDB[ii] = 0;
1411
1412         /* DataLength */
1413         pScsiReq->DataLength = cpu_to_le32(datalen);
1414
1415         /* SenseBuffer low address */
1416         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1417                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1418
1419         /* Now add the SG list
1420          * Always have a SGE even if null length.
1421          */
1422         if (datalen == 0) {
1423                 /* Add a NULL SGE */
1424                 ioc->add_sge((char *)&pScsiReq->SGL,
1425                         MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1426                         (dma_addr_t) -1);
1427         } else {
1428                 /* Add a 32 or 64 bit SGE */
1429                 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1430                         goto fail;
1431         }
1432
1433         SCpnt->host_scribble = (unsigned char *)mf;
1434         mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1435
1436         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1437         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1438                         ioc->name, SCpnt, mf, my_idx));
1439         DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1440         return 0;
1441
1442  fail:
1443         mptscsih_freeChainBuffers(ioc, my_idx);
1444         mpt_free_msg_frame(ioc, mf);
1445         return SCSI_MLQUEUE_HOST_BUSY;
1446 }
1447
1448 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1449 /*
1450  *      mptscsih_freeChainBuffers - Function to free chain buffers associated
1451  *      with a SCSI IO request
1452  *      @hd: Pointer to the MPT_SCSI_HOST instance
1453  *      @req_idx: Index of the SCSI IO request frame.
1454  *
1455  *      Called if SG chain buffer allocation fails and mptscsih callbacks.
1456  *      No return.
1457  */
1458 static void
1459 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1460 {
1461         MPT_FRAME_HDR *chain;
1462         unsigned long flags;
1463         int chain_idx;
1464         int next;
1465
1466         /* Get the first chain index and reset
1467          * tracker state.
1468          */
1469         chain_idx = ioc->ReqToChain[req_idx];
1470         ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1471
1472         while (chain_idx != MPT_HOST_NO_CHAIN) {
1473
1474                 /* Save the next chain buffer index */
1475                 next = ioc->ChainToChain[chain_idx];
1476
1477                 /* Free this chain buffer and reset
1478                  * tracker
1479                  */
1480                 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1481
1482                 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1483                                         + (chain_idx * ioc->req_sz));
1484
1485                 spin_lock_irqsave(&ioc->FreeQlock, flags);
1486                 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1487                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1488
1489                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1490                                 ioc->name, chain_idx));
1491
1492                 /* handle next */
1493                 chain_idx = next;
1494         }
1495         return;
1496 }
1497
1498 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1499 /*
1500  *      Reset Handling
1501  */
1502
1503 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1504 /**
1505  *      mptscsih_IssueTaskMgmt - Generic send Task Management function.
1506  *      @hd: Pointer to MPT_SCSI_HOST structure
1507  *      @type: Task Management type
1508  *      @channel: channel number for task management
1509  *      @id: Logical Target ID for reset (if appropriate)
1510  *      @lun: Logical Unit for reset (if appropriate)
1511  *      @ctx2abort: Context for the task to be aborted (if appropriate)
1512  *      @timeout: timeout for task management control
1513  *
1514  *      Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1515  *      or a non-interrupt thread.  In the former, must not call schedule().
1516  *
1517  *      Not all fields are meaningfull for all task types.
1518  *
1519  *      Returns 0 for SUCCESS, or FAILED.
1520  *
1521  **/
1522 int
1523 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun,
1524         int ctx2abort, ulong timeout)
1525 {
1526         MPT_FRAME_HDR   *mf;
1527         SCSITaskMgmt_t  *pScsiTm;
1528         int              ii;
1529         int              retval;
1530         MPT_ADAPTER     *ioc = hd->ioc;
1531         unsigned long    timeleft;
1532         u8               issue_hard_reset;
1533         u32              ioc_raw_state;
1534         unsigned long    time_count;
1535
1536         issue_hard_reset = 0;
1537         ioc_raw_state = mpt_GetIocState(ioc, 0);
1538
1539         if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1540                 printk(MYIOC_s_WARN_FMT
1541                         "TaskMgmt type=%x: IOC Not operational (0x%x)!\n",
1542                         ioc->name, type, ioc_raw_state);
1543                 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
1544                     ioc->name, __func__);
1545                 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1546                         printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset "
1547                             "FAILED!!\n", ioc->name);
1548                 return 0;
1549         }
1550
1551         /* DOORBELL ACTIVE check is not required if
1552         *  MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported.
1553         */
1554
1555         if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q)
1556                  && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) &&
1557                 (ioc_raw_state & MPI_DOORBELL_ACTIVE)) {
1558                 printk(MYIOC_s_WARN_FMT
1559                         "TaskMgmt type=%x: ioc_state: "
1560                         "DOORBELL_ACTIVE (0x%x)!\n",
1561                         ioc->name, type, ioc_raw_state);
1562                 return FAILED;
1563         }
1564
1565         mutex_lock(&ioc->taskmgmt_cmds.mutex);
1566         if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
1567                 mf = NULL;
1568                 retval = FAILED;
1569                 goto out;
1570         }
1571
1572         /* Return Fail to calling function if no message frames available.
1573          */
1574         if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1575                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1576                         "TaskMgmt no msg frames!!\n", ioc->name));
1577                 retval = FAILED;
1578                 mpt_clear_taskmgmt_in_progress_flag(ioc);
1579                 goto out;
1580         }
1581         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
1582                         ioc->name, mf));
1583
1584         /* Format the Request
1585          */
1586         pScsiTm = (SCSITaskMgmt_t *) mf;
1587         pScsiTm->TargetID = id;
1588         pScsiTm->Bus = channel;
1589         pScsiTm->ChainOffset = 0;
1590         pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1591
1592         pScsiTm->Reserved = 0;
1593         pScsiTm->TaskType = type;
1594         pScsiTm->Reserved1 = 0;
1595         pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1596                     ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1597
1598         int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1599
1600         for (ii=0; ii < 7; ii++)
1601                 pScsiTm->Reserved2[ii] = 0;
1602
1603         pScsiTm->TaskMsgContext = ctx2abort;
1604
1605         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) "
1606                 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort,
1607                 type, timeout));
1608
1609         DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1610
1611         INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1612         time_count = jiffies;
1613         if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1614             (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1615                 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1616         else {
1617                 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1618                         sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1619                 if (retval) {
1620                         dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1621                                 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n",
1622                                 ioc->name, mf, retval));
1623                         mpt_free_msg_frame(ioc, mf);
1624                         mpt_clear_taskmgmt_in_progress_flag(ioc);
1625                         goto out;
1626                 }
1627         }
1628
1629         timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
1630                 timeout*HZ);
1631         if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
1632                 retval = FAILED;
1633                 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
1634                     "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf));
1635                 mpt_clear_taskmgmt_in_progress_flag(ioc);
1636                 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
1637                         goto out;
1638                 issue_hard_reset = 1;
1639                 goto out;
1640         }
1641
1642         retval = mptscsih_taskmgmt_reply(ioc, type,
1643             (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply);
1644
1645         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1646             "TaskMgmt completed (%d seconds)\n",
1647             ioc->name, jiffies_to_msecs(jiffies - time_count)/1000));
1648
1649  out:
1650
1651         CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1652         if (issue_hard_reset) {
1653                 printk(MYIOC_s_WARN_FMT
1654                        "Issuing Reset from %s!! doorbell=0x%08x\n",
1655                        ioc->name, __func__, mpt_GetIocState(ioc, 0));
1656                 retval = (ioc->bus_type == SAS) ?
1657                         mpt_HardResetHandler(ioc, CAN_SLEEP) :
1658                         mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1659                 mpt_free_msg_frame(ioc, mf);
1660         }
1661
1662         retval = (retval == 0) ? 0 : FAILED;
1663         mutex_unlock(&ioc->taskmgmt_cmds.mutex);
1664         return retval;
1665 }
1666 EXPORT_SYMBOL(mptscsih_IssueTaskMgmt);
1667
1668 static int
1669 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1670 {
1671         switch (ioc->bus_type) {
1672         case FC:
1673                 return 40;
1674         case SAS:
1675                 return 30;
1676         case SPI:
1677         default:
1678                 return 10;
1679         }
1680 }
1681
1682 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1683 /**
1684  *      mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1685  *      @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1686  *
1687  *      (linux scsi_host_template.eh_abort_handler routine)
1688  *
1689  *      Returns SUCCESS or FAILED.
1690  **/
1691 int
1692 mptscsih_abort(struct scsi_cmnd * SCpnt)
1693 {
1694         MPT_SCSI_HOST   *hd;
1695         MPT_FRAME_HDR   *mf;
1696         u32              ctx2abort;
1697         int              scpnt_idx;
1698         int              retval;
1699         VirtDevice       *vdevice;
1700         MPT_ADAPTER     *ioc;
1701
1702         /* If we can't locate our host adapter structure, return FAILED status.
1703          */
1704         if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1705                 SCpnt->result = DID_RESET << 16;
1706                 SCpnt->scsi_done(SCpnt);
1707                 printk(KERN_ERR MYNAM ": task abort: "
1708                     "can't locate host! (sc=%p)\n", SCpnt);
1709                 return FAILED;
1710         }
1711
1712         ioc = hd->ioc;
1713         printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1714                ioc->name, SCpnt);
1715         scsi_print_command(SCpnt);
1716
1717         vdevice = SCpnt->device->hostdata;
1718         if (!vdevice || !vdevice->vtarget) {
1719                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1720                     "task abort: device has been deleted (sc=%p)\n",
1721                     ioc->name, SCpnt));
1722                 SCpnt->result = DID_NO_CONNECT << 16;
1723                 SCpnt->scsi_done(SCpnt);
1724                 retval = SUCCESS;
1725                 goto out;
1726         }
1727
1728         /* Task aborts are not supported for hidden raid components.
1729          */
1730         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1731                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1732                     "task abort: hidden raid component (sc=%p)\n",
1733                     ioc->name, SCpnt));
1734                 SCpnt->result = DID_RESET << 16;
1735                 retval = FAILED;
1736                 goto out;
1737         }
1738
1739         /* Task aborts are not supported for volumes.
1740          */
1741         if (vdevice->vtarget->raidVolume) {
1742                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1743                     "task abort: raid volume (sc=%p)\n",
1744                     ioc->name, SCpnt));
1745                 SCpnt->result = DID_RESET << 16;
1746                 retval = FAILED;
1747                 goto out;
1748         }
1749
1750         /* Find this command
1751          */
1752         if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1753                 /* Cmd not found in ScsiLookup.
1754                  * Do OS callback.
1755                  */
1756                 SCpnt->result = DID_RESET << 16;
1757                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1758                    "Command not in the active list! (sc=%p)\n", ioc->name,
1759                    SCpnt));
1760                 retval = SUCCESS;
1761                 goto out;
1762         }
1763
1764         if (ioc->timeouts < -1)
1765                 ioc->timeouts++;
1766
1767         if (mpt_fwfault_debug)
1768                 mpt_halt_firmware(ioc);
1769
1770         /* Most important!  Set TaskMsgContext to SCpnt's MsgContext!
1771          * (the IO to be ABORT'd)
1772          *
1773          * NOTE: Since we do not byteswap MsgContext, we do not
1774          *       swap it here either.  It is an opaque cookie to
1775          *       the controller, so it does not matter. -DaveM
1776          */
1777         mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1778         ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1779         retval = mptscsih_IssueTaskMgmt(hd,
1780                          MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1781                          vdevice->vtarget->channel,
1782                          vdevice->vtarget->id, vdevice->lun,
1783                          ctx2abort, mptscsih_get_tm_timeout(ioc));
1784
1785         if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) {
1786                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1787                     "task abort: command still in active list! (sc=%p)\n",
1788                     ioc->name, SCpnt));
1789                 retval = FAILED;
1790         } else {
1791                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1792                     "task abort: command cleared from active list! (sc=%p)\n",
1793                     ioc->name, SCpnt));
1794                 retval = SUCCESS;
1795         }
1796
1797  out:
1798         printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n",
1799             ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval,
1800             SCpnt);
1801
1802         return retval;
1803 }
1804
1805 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1806 /**
1807  *      mptscsih_dev_reset - Perform a SCSI TARGET_RESET!  new_eh variant
1808  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1809  *
1810  *      (linux scsi_host_template.eh_dev_reset_handler routine)
1811  *
1812  *      Returns SUCCESS or FAILED.
1813  **/
1814 int
1815 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1816 {
1817         MPT_SCSI_HOST   *hd;
1818         int              retval;
1819         VirtDevice       *vdevice;
1820         MPT_ADAPTER     *ioc;
1821
1822         /* If we can't locate our host adapter structure, return FAILED status.
1823          */
1824         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1825                 printk(KERN_ERR MYNAM ": target reset: "
1826                    "Can't locate host! (sc=%p)\n", SCpnt);
1827                 return FAILED;
1828         }
1829
1830         ioc = hd->ioc;
1831         printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1832                ioc->name, SCpnt);
1833         scsi_print_command(SCpnt);
1834
1835         vdevice = SCpnt->device->hostdata;
1836         if (!vdevice || !vdevice->vtarget) {
1837                 retval = 0;
1838                 goto out;
1839         }
1840
1841         /* Target reset to hidden raid component is not supported
1842          */
1843         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1844                 retval = FAILED;
1845                 goto out;
1846         }
1847
1848         retval = mptscsih_IssueTaskMgmt(hd,
1849                                 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1850                                 vdevice->vtarget->channel,
1851                                 vdevice->vtarget->id, 0, 0,
1852                                 mptscsih_get_tm_timeout(ioc));
1853
1854  out:
1855         printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1856             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1857
1858         if (retval == 0)
1859                 return SUCCESS;
1860         else
1861                 return FAILED;
1862 }
1863
1864
1865 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1866 /**
1867  *      mptscsih_bus_reset - Perform a SCSI BUS_RESET!  new_eh variant
1868  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1869  *
1870  *      (linux scsi_host_template.eh_bus_reset_handler routine)
1871  *
1872  *      Returns SUCCESS or FAILED.
1873  **/
1874 int
1875 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1876 {
1877         MPT_SCSI_HOST   *hd;
1878         int              retval;
1879         VirtDevice       *vdevice;
1880         MPT_ADAPTER     *ioc;
1881
1882         /* If we can't locate our host adapter structure, return FAILED status.
1883          */
1884         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1885                 printk(KERN_ERR MYNAM ": bus reset: "
1886                    "Can't locate host! (sc=%p)\n", SCpnt);
1887                 return FAILED;
1888         }
1889
1890         ioc = hd->ioc;
1891         printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1892                ioc->name, SCpnt);
1893         scsi_print_command(SCpnt);
1894
1895         if (ioc->timeouts < -1)
1896                 ioc->timeouts++;
1897
1898         vdevice = SCpnt->device->hostdata;
1899         if (!vdevice || !vdevice->vtarget)
1900                 return SUCCESS;
1901         retval = mptscsih_IssueTaskMgmt(hd,
1902                                         MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1903                                         vdevice->vtarget->channel, 0, 0, 0,
1904                                         mptscsih_get_tm_timeout(ioc));
1905
1906         printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1907             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1908
1909         if (retval == 0)
1910                 return SUCCESS;
1911         else
1912                 return FAILED;
1913 }
1914
1915 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1916 /**
1917  *      mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1918  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1919  *
1920  *      (linux scsi_host_template.eh_host_reset_handler routine)
1921  *
1922  *      Returns SUCCESS or FAILED.
1923  */
1924 int
1925 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1926 {
1927         MPT_SCSI_HOST *  hd;
1928         int              status = SUCCESS;
1929         MPT_ADAPTER     *ioc;
1930         int             retval;
1931
1932         /*  If we can't locate the host to reset, then we failed. */
1933         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1934                 printk(KERN_ERR MYNAM ": host reset: "
1935                     "Can't locate host! (sc=%p)\n", SCpnt);
1936                 return FAILED;
1937         }
1938
1939         /* make sure we have no outstanding commands at this stage */
1940         mptscsih_flush_running_cmds(hd);
1941
1942         ioc = hd->ioc;
1943         printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
1944             ioc->name, SCpnt);
1945
1946         /*  If our attempts to reset the host failed, then return a failed
1947          *  status.  The host will be taken off line by the SCSI mid-layer.
1948          */
1949     retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
1950         if (retval < 0)
1951                 status = FAILED;
1952         else
1953                 status = SUCCESS;
1954
1955         printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
1956             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1957
1958         return status;
1959 }
1960
1961 static int
1962 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
1963         SCSITaskMgmtReply_t *pScsiTmReply)
1964 {
1965         u16                      iocstatus;
1966         u32                      termination_count;
1967         int                      retval;
1968
1969         if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
1970                 retval = FAILED;
1971                 goto out;
1972         }
1973
1974         DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
1975
1976         iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
1977         termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
1978
1979         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1980             "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n"
1981             "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n"
1982             "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus,
1983             pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus),
1984             le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode,
1985             termination_count));
1986
1987         if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
1988             pScsiTmReply->ResponseCode)
1989                 mptscsih_taskmgmt_response_code(ioc,
1990                     pScsiTmReply->ResponseCode);
1991
1992         if (iocstatus == MPI_IOCSTATUS_SUCCESS) {
1993                 retval = 0;
1994                 goto out;
1995         }
1996
1997         retval = FAILED;
1998         if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1999                 if (termination_count == 1)
2000                         retval = 0;
2001                 goto out;
2002         }
2003
2004         if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
2005            iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
2006                 retval = 0;
2007
2008  out:
2009         return retval;
2010 }
2011
2012 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2013 void
2014 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2015 {
2016         char *desc;
2017
2018         switch (response_code) {
2019         case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2020                 desc = "The task completed.";
2021                 break;
2022         case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2023                 desc = "The IOC received an invalid frame status.";
2024                 break;
2025         case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2026                 desc = "The task type is not supported.";
2027                 break;
2028         case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2029                 desc = "The requested task failed.";
2030                 break;
2031         case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2032                 desc = "The task completed successfully.";
2033                 break;
2034         case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2035                 desc = "The LUN request is invalid.";
2036                 break;
2037         case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2038                 desc = "The task is in the IOC queue and has not been sent to target.";
2039                 break;
2040         default:
2041                 desc = "unknown";
2042                 break;
2043         }
2044         printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2045                 ioc->name, response_code, desc);
2046 }
2047 EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
2048
2049 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2050 /**
2051  *      mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2052  *      @ioc: Pointer to MPT_ADAPTER structure
2053  *      @mf: Pointer to SCSI task mgmt request frame
2054  *      @mr: Pointer to SCSI task mgmt reply frame
2055  *
2056  *      This routine is called from mptbase.c::mpt_interrupt() at the completion
2057  *      of any SCSI task management request.
2058  *      This routine is registered with the MPT (base) driver at driver
2059  *      load/init time via the mpt_register() API call.
2060  *
2061  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2062  **/
2063 int
2064 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf,
2065         MPT_FRAME_HDR *mr)
2066 {
2067         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2068                 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr));
2069
2070         ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2071
2072         if (!mr)
2073                 goto out;
2074
2075         ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2076         memcpy(ioc->taskmgmt_cmds.reply, mr,
2077             min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
2078  out:
2079         if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
2080                 mpt_clear_taskmgmt_in_progress_flag(ioc);
2081                 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2082                 complete(&ioc->taskmgmt_cmds.done);
2083                 if (ioc->bus_type == SAS)
2084                         ioc->schedule_target_reset(ioc);
2085                 return 1;
2086         }
2087         return 0;
2088 }
2089
2090 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2091 /*
2092  *      This is anyones guess quite frankly.
2093  */
2094 int
2095 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2096                 sector_t capacity, int geom[])
2097 {
2098         int             heads;
2099         int             sectors;
2100         sector_t        cylinders;
2101         ulong           dummy;
2102
2103         heads = 64;
2104         sectors = 32;
2105
2106         dummy = heads * sectors;
2107         cylinders = capacity;
2108         sector_div(cylinders,dummy);
2109
2110         /*
2111          * Handle extended translation size for logical drives
2112          * > 1Gb
2113          */
2114         if ((ulong)capacity >= 0x200000) {
2115                 heads = 255;
2116                 sectors = 63;
2117                 dummy = heads * sectors;
2118                 cylinders = capacity;
2119                 sector_div(cylinders,dummy);
2120         }
2121
2122         /* return result */
2123         geom[0] = heads;
2124         geom[1] = sectors;
2125         geom[2] = cylinders;
2126
2127         return 0;
2128 }
2129
2130 /* Search IOC page 3 to determine if this is hidden physical disk
2131  *
2132  */
2133 int
2134 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2135 {
2136         struct inactive_raid_component_info *component_info;
2137         int i, j;
2138         RaidPhysDiskPage1_t *phys_disk;
2139         int rc = 0;
2140         int num_paths;
2141
2142         if (!ioc->raid_data.pIocPg3)
2143                 goto out;
2144         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2145                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2146                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2147                         rc = 1;
2148                         goto out;
2149                 }
2150         }
2151
2152         if (ioc->bus_type != SAS)
2153                 goto out;
2154
2155         /*
2156          * Check if dual path
2157          */
2158         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2159                 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2160                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2161                 if (num_paths < 2)
2162                         continue;
2163                 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2164                    (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2165                 if (!phys_disk)
2166                         continue;
2167                 if ((mpt_raid_phys_disk_pg1(ioc,
2168                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2169                     phys_disk))) {
2170                         kfree(phys_disk);
2171                         continue;
2172                 }
2173                 for (j = 0; j < num_paths; j++) {
2174                         if ((phys_disk->Path[j].Flags &
2175                             MPI_RAID_PHYSDISK1_FLAG_INVALID))
2176                                 continue;
2177                         if ((phys_disk->Path[j].Flags &
2178                             MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2179                                 continue;
2180                         if ((id == phys_disk->Path[j].PhysDiskID) &&
2181                             (channel == phys_disk->Path[j].PhysDiskBus)) {
2182                                 rc = 1;
2183                                 kfree(phys_disk);
2184                                 goto out;
2185                         }
2186                 }
2187                 kfree(phys_disk);
2188         }
2189
2190
2191         /*
2192          * Check inactive list for matching phys disks
2193          */
2194         if (list_empty(&ioc->raid_data.inactive_list))
2195                 goto out;
2196
2197         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2198         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2199             list) {
2200                 if ((component_info->d.PhysDiskID == id) &&
2201                     (component_info->d.PhysDiskBus == channel))
2202                         rc = 1;
2203         }
2204         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2205
2206  out:
2207         return rc;
2208 }
2209 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2210
2211 u8
2212 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2213 {
2214         struct inactive_raid_component_info *component_info;
2215         int i, j;
2216         RaidPhysDiskPage1_t *phys_disk;
2217         int rc = -ENXIO;
2218         int num_paths;
2219
2220         if (!ioc->raid_data.pIocPg3)
2221                 goto out;
2222         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2223                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2224                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2225                         rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2226                         goto out;
2227                 }
2228         }
2229
2230         if (ioc->bus_type != SAS)
2231                 goto out;
2232
2233         /*
2234          * Check if dual path
2235          */
2236         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2237                 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2238                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2239                 if (num_paths < 2)
2240                         continue;
2241                 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2242                    (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2243                 if (!phys_disk)
2244                         continue;
2245                 if ((mpt_raid_phys_disk_pg1(ioc,
2246                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2247                     phys_disk))) {
2248                         kfree(phys_disk);
2249                         continue;
2250                 }
2251                 for (j = 0; j < num_paths; j++) {
2252                         if ((phys_disk->Path[j].Flags &
2253                             MPI_RAID_PHYSDISK1_FLAG_INVALID))
2254                                 continue;
2255                         if ((phys_disk->Path[j].Flags &
2256                             MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2257                                 continue;
2258                         if ((id == phys_disk->Path[j].PhysDiskID) &&
2259                             (channel == phys_disk->Path[j].PhysDiskBus)) {
2260                                 rc = phys_disk->PhysDiskNum;
2261                                 kfree(phys_disk);
2262                                 goto out;
2263                         }
2264                 }
2265                 kfree(phys_disk);
2266         }
2267
2268         /*
2269          * Check inactive list for matching phys disks
2270          */
2271         if (list_empty(&ioc->raid_data.inactive_list))
2272                 goto out;
2273
2274         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2275         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2276             list) {
2277                 if ((component_info->d.PhysDiskID == id) &&
2278                     (component_info->d.PhysDiskBus == channel))
2279                         rc = component_info->d.PhysDiskNum;
2280         }
2281         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2282
2283  out:
2284         return rc;
2285 }
2286 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2287
2288 /*
2289  *      OS entry point to allow for host driver to free allocated memory
2290  *      Called if no device present or device being unloaded
2291  */
2292 void
2293 mptscsih_slave_destroy(struct scsi_device *sdev)
2294 {
2295         struct Scsi_Host        *host = sdev->host;
2296         MPT_SCSI_HOST           *hd = shost_priv(host);
2297         VirtTarget              *vtarget;
2298         VirtDevice              *vdevice;
2299         struct scsi_target      *starget;
2300
2301         starget = scsi_target(sdev);
2302         vtarget = starget->hostdata;
2303         vdevice = sdev->hostdata;
2304         if (!vdevice)
2305                 return;
2306
2307         mptscsih_search_running_cmds(hd, vdevice);
2308         vtarget->num_luns--;
2309         mptscsih_synchronize_cache(hd, vdevice);
2310         kfree(vdevice);
2311         sdev->hostdata = NULL;
2312 }
2313
2314 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2315 /*
2316  *      mptscsih_change_queue_depth - This function will set a devices queue depth
2317  *      @sdev: per scsi_device pointer
2318  *      @qdepth: requested queue depth
2319  *      @reason: calling context
2320  *
2321  *      Adding support for new 'change_queue_depth' api.
2322 */
2323 int
2324 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
2325 {
2326         MPT_SCSI_HOST           *hd = shost_priv(sdev->host);
2327         VirtTarget              *vtarget;
2328         struct scsi_target      *starget;
2329         int                     max_depth;
2330         int                     tagged;
2331         MPT_ADAPTER             *ioc = hd->ioc;
2332
2333         starget = scsi_target(sdev);
2334         vtarget = starget->hostdata;
2335
2336         if (reason != SCSI_QDEPTH_DEFAULT)
2337                 return -EOPNOTSUPP;
2338
2339         if (ioc->bus_type == SPI) {
2340                 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2341                         max_depth = 1;
2342                 else if (sdev->type == TYPE_DISK &&
2343                          vtarget->minSyncFactor <= MPT_ULTRA160)
2344                         max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2345                 else
2346                         max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2347         } else
2348                  max_depth = ioc->sh->can_queue;
2349
2350         if (!sdev->tagged_supported)
2351                 max_depth = 1;
2352
2353         if (qdepth > max_depth)
2354                 qdepth = max_depth;
2355         if (qdepth == 1)
2356                 tagged = 0;
2357         else
2358                 tagged = MSG_SIMPLE_TAG;
2359
2360         scsi_adjust_queue_depth(sdev, tagged, qdepth);
2361         return sdev->queue_depth;
2362 }
2363
2364 /*
2365  *      OS entry point to adjust the queue_depths on a per-device basis.
2366  *      Called once per device the bus scan. Use it to force the queue_depth
2367  *      member to 1 if a device does not support Q tags.
2368  *      Return non-zero if fails.
2369  */
2370 int
2371 mptscsih_slave_configure(struct scsi_device *sdev)
2372 {
2373         struct Scsi_Host        *sh = sdev->host;
2374         VirtTarget              *vtarget;
2375         VirtDevice              *vdevice;
2376         struct scsi_target      *starget;
2377         MPT_SCSI_HOST           *hd = shost_priv(sh);
2378         MPT_ADAPTER             *ioc = hd->ioc;
2379
2380         starget = scsi_target(sdev);
2381         vtarget = starget->hostdata;
2382         vdevice = sdev->hostdata;
2383
2384         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2385                 "device @ %p, channel=%d, id=%d, lun=%d\n",
2386                 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2387         if (ioc->bus_type == SPI)
2388                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2389                     "sdtr %d wdtr %d ppr %d inq length=%d\n",
2390                     ioc->name, sdev->sdtr, sdev->wdtr,
2391                     sdev->ppr, sdev->inquiry_len));
2392
2393         vdevice->configured_lun = 1;
2394
2395         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2396                 "Queue depth=%d, tflags=%x\n",
2397                 ioc->name, sdev->queue_depth, vtarget->tflags));
2398
2399         if (ioc->bus_type == SPI)
2400                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2401                     "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2402                     ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2403                     vtarget->minSyncFactor));
2404
2405         mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH,
2406                                     SCSI_QDEPTH_DEFAULT);
2407         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2408                 "tagged %d, simple %d, ordered %d\n",
2409                 ioc->name,sdev->tagged_supported, sdev->simple_tags,
2410                 sdev->ordered_tags));
2411
2412         blk_queue_dma_alignment (sdev->request_queue, 512 - 1);
2413
2414         return 0;
2415 }
2416
2417 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2418 /*
2419  *  Private routines...
2420  */
2421
2422 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2423 /* Utility function to copy sense data from the scsi_cmnd buffer
2424  * to the FC and SCSI target structures.
2425  *
2426  */
2427 static void
2428 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2429 {
2430         VirtDevice      *vdevice;
2431         SCSIIORequest_t *pReq;
2432         u32              sense_count = le32_to_cpu(pScsiReply->SenseCount);
2433         MPT_ADAPTER     *ioc = hd->ioc;
2434
2435         /* Get target structure
2436          */
2437         pReq = (SCSIIORequest_t *) mf;
2438         vdevice = sc->device->hostdata;
2439
2440         if (sense_count) {
2441                 u8 *sense_data;
2442                 int req_index;
2443
2444                 /* Copy the sense received into the scsi command block. */
2445                 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2446                 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2447                 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2448
2449                 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2450                  */
2451                 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2452                         if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2453                                 int idx;
2454
2455                                 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2456                                 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2457                                 ioc->events[idx].eventContext = ioc->eventContext;
2458
2459                                 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2460                                         (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2461                                         (sc->device->channel << 8) | sc->device->id;
2462
2463                                 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2464
2465                                 ioc->eventContext++;
2466                                 if (ioc->pcidev->vendor ==
2467                                     PCI_VENDOR_ID_IBM) {
2468                                         mptscsih_issue_sep_command(ioc,
2469                                             vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2470                                         vdevice->vtarget->tflags |=
2471                                             MPT_TARGET_FLAGS_LED_ON;
2472                                 }
2473                         }
2474                 }
2475         } else {
2476                 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2477                                 ioc->name));
2478         }
2479 }
2480
2481 /**
2482  * mptscsih_get_scsi_lookup - retrieves scmd entry
2483  * @ioc: Pointer to MPT_ADAPTER structure
2484  * @i: index into the array
2485  *
2486  * Returns the scsi_cmd pointer
2487  */
2488 struct scsi_cmnd *
2489 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2490 {
2491         unsigned long   flags;
2492         struct scsi_cmnd *scmd;
2493
2494         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2495         scmd = ioc->ScsiLookup[i];
2496         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2497
2498         return scmd;
2499 }
2500 EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
2501
2502 /**
2503  * mptscsih_getclear_scsi_lookup -  retrieves and clears scmd entry from ScsiLookup[] array list
2504  * @ioc: Pointer to MPT_ADAPTER structure
2505  * @i: index into the array
2506  *
2507  * Returns the scsi_cmd pointer
2508  *
2509  **/
2510 static struct scsi_cmnd *
2511 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2512 {
2513         unsigned long   flags;
2514         struct scsi_cmnd *scmd;
2515
2516         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2517         scmd = ioc->ScsiLookup[i];
2518         ioc->ScsiLookup[i] = NULL;
2519         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2520
2521         return scmd;
2522 }
2523
2524 /**
2525  * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list
2526  *
2527  * @ioc: Pointer to MPT_ADAPTER structure
2528  * @i: index into the array
2529  * @scmd: scsi_cmnd pointer
2530  *
2531  **/
2532 static void
2533 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2534 {
2535         unsigned long   flags;
2536
2537         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2538         ioc->ScsiLookup[i] = scmd;
2539         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2540 }
2541
2542 /**
2543  * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2544  * @ioc: Pointer to MPT_ADAPTER structure
2545  * @sc: scsi_cmnd pointer
2546  */
2547 static int
2548 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2549 {
2550         unsigned long   flags;
2551         int i, index=-1;
2552
2553         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2554         for (i = 0; i < ioc->req_depth; i++) {
2555                 if (ioc->ScsiLookup[i] == sc) {
2556                         index = i;
2557                         goto out;
2558                 }
2559         }
2560
2561  out:
2562         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2563         return index;
2564 }
2565
2566 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2567 int
2568 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2569 {
2570         MPT_SCSI_HOST   *hd;
2571
2572         if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2573                 return 0;
2574
2575         hd = shost_priv(ioc->sh);
2576         switch (reset_phase) {
2577         case MPT_IOC_SETUP_RESET:
2578                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2579                     "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
2580                 break;
2581         case MPT_IOC_PRE_RESET:
2582                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2583                     "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
2584                 mptscsih_flush_running_cmds(hd);
2585                 break;
2586         case MPT_IOC_POST_RESET:
2587                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2588                     "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
2589                 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) {
2590                         ioc->internal_cmds.status |=
2591                                 MPT_MGMT_STATUS_DID_IOCRESET;
2592                         complete(&ioc->internal_cmds.done);
2593                 }
2594                 break;
2595         default:
2596                 break;
2597         }
2598         return 1;               /* currently means nothing really */
2599 }
2600
2601 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2602 int
2603 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2604 {
2605         u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2606
2607         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2608                 "MPT event (=%02Xh) routed to SCSI host driver!\n",
2609                 ioc->name, event));
2610
2611         if ((event == MPI_EVENT_IOC_BUS_RESET ||
2612             event == MPI_EVENT_EXT_BUS_RESET) &&
2613             (ioc->bus_type == SPI) && (ioc->soft_resets < -1))
2614                         ioc->soft_resets++;
2615
2616         return 1;               /* currently means nothing really */
2617 }
2618
2619 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2620 /*
2621  *  Bus Scan and Domain Validation functionality ...
2622  */
2623
2624 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2625 /*
2626  *      mptscsih_scandv_complete - Scan and DV callback routine registered
2627  *      to Fustion MPT (base) driver.
2628  *
2629  *      @ioc: Pointer to MPT_ADAPTER structure
2630  *      @mf: Pointer to original MPT request frame
2631  *      @mr: Pointer to MPT reply frame (NULL if TurboReply)
2632  *
2633  *      This routine is called from mpt.c::mpt_interrupt() at the completion
2634  *      of any SCSI IO request.
2635  *      This routine is registered with the Fusion MPT (base) driver at driver
2636  *      load/init time via the mpt_register() API call.
2637  *
2638  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2639  *
2640  *      Remark: Sets a completion code and (possibly) saves sense data
2641  *      in the IOC member localReply structure.
2642  *      Used ONLY for DV and other internal commands.
2643  */
2644 int
2645 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2646                                 MPT_FRAME_HDR *reply)
2647 {
2648         SCSIIORequest_t *pReq;
2649         SCSIIOReply_t   *pReply;
2650         u8               cmd;
2651         u16              req_idx;
2652         u8      *sense_data;
2653         int              sz;
2654
2655         ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2656         ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD;
2657         if (!reply)
2658                 goto out;
2659
2660         pReply = (SCSIIOReply_t *) reply;
2661         pReq = (SCSIIORequest_t *) req;
2662         ioc->internal_cmds.completion_code =
2663             mptscsih_get_completion_code(ioc, req, reply);
2664         ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2665         memcpy(ioc->internal_cmds.reply, reply,
2666             min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength));
2667         cmd = reply->u.hdr.Function;
2668         if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
2669             (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) &&
2670             (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
2671                 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
2672                 sense_data = ((u8 *)ioc->sense_buf_pool +
2673                     (req_idx * MPT_SENSE_BUFFER_ALLOC));
2674                 sz = min_t(int, pReq->SenseBufferLength,
2675                     MPT_SENSE_BUFFER_ALLOC);
2676                 memcpy(ioc->internal_cmds.sense, sense_data, sz);
2677         }
2678  out:
2679         if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING))
2680                 return 0;
2681         ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2682         complete(&ioc->internal_cmds.done);
2683         return 1;
2684 }
2685
2686
2687 /**
2688  *      mptscsih_get_completion_code - get completion code from MPT request
2689  *      @ioc: Pointer to MPT_ADAPTER structure
2690  *      @req: Pointer to original MPT request frame
2691  *      @reply: Pointer to MPT reply frame (NULL if TurboReply)
2692  *
2693  **/
2694 static int
2695 mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2696                                 MPT_FRAME_HDR *reply)
2697 {
2698         SCSIIOReply_t   *pReply;
2699         MpiRaidActionReply_t *pr;
2700         u8               scsi_status;
2701         u16              status;
2702         int              completion_code;
2703
2704         pReply = (SCSIIOReply_t *)reply;
2705         status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2706         scsi_status = pReply->SCSIStatus;
2707
2708         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2709             "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh,"
2710             "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState,
2711             scsi_status, le32_to_cpu(pReply->IOCLogInfo)));
2712
2713         switch (status) {
2714
2715         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
2716                 completion_code = MPT_SCANDV_SELECTION_TIMEOUT;
2717                 break;
2718
2719         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
2720         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
2721         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
2722         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
2723                 completion_code = MPT_SCANDV_DID_RESET;
2724                 break;
2725
2726         case MPI_IOCSTATUS_BUSY:
2727         case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
2728                 completion_code = MPT_SCANDV_BUSY;
2729                 break;
2730
2731         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
2732         case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
2733         case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
2734                 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2735                         completion_code = MPT_SCANDV_GOOD;
2736                 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2737                         pr = (MpiRaidActionReply_t *)reply;
2738                         if (le16_to_cpu(pr->ActionStatus) ==
2739                                 MPI_RAID_ACTION_ASTATUS_SUCCESS)
2740                                 completion_code = MPT_SCANDV_GOOD;
2741                         else
2742                                 completion_code = MPT_SCANDV_SOME_ERROR;
2743                 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)
2744                         completion_code = MPT_SCANDV_SENSE;
2745                 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2746                         if (req->u.scsireq.CDB[0] == INQUIRY)
2747                                 completion_code = MPT_SCANDV_ISSUE_SENSE;
2748                         else
2749                                 completion_code = MPT_SCANDV_DID_RESET;
2750                 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2751                         completion_code = MPT_SCANDV_DID_RESET;
2752                 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2753                         completion_code = MPT_SCANDV_DID_RESET;
2754                 else if (scsi_status == MPI_SCSI_STATUS_BUSY)
2755                         completion_code = MPT_SCANDV_BUSY;
2756                 else
2757                         completion_code = MPT_SCANDV_GOOD;
2758                 break;
2759
2760         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
2761                 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2762                         completion_code = MPT_SCANDV_DID_RESET;
2763                 else
2764                         completion_code = MPT_SCANDV_SOME_ERROR;
2765                 break;
2766         default:
2767                 completion_code = MPT_SCANDV_SOME_ERROR;
2768                 break;
2769
2770         }       /* switch(status) */
2771
2772         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2773             "  completionCode set to %08xh\n", ioc->name, completion_code));
2774         return completion_code;
2775 }
2776
2777 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2778 /**
2779  *      mptscsih_do_cmd - Do internal command.
2780  *      @hd: MPT_SCSI_HOST pointer
2781  *      @io: INTERNAL_CMD pointer.
2782  *
2783  *      Issue the specified internally generated command and do command
2784  *      specific cleanup. For bus scan / DV only.
2785  *      NOTES: If command is Inquiry and status is good,
2786  *      initialize a target structure, save the data
2787  *
2788  *      Remark: Single threaded access only.
2789  *
2790  *      Return:
2791  *              < 0 if an illegal command or no resources
2792  *
2793  *                 0 if good
2794  *
2795  *               > 0 if command complete but some type of completion error.
2796  */
2797 static int
2798 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2799 {
2800         MPT_FRAME_HDR   *mf;
2801         SCSIIORequest_t *pScsiReq;
2802         int              my_idx, ii, dir;
2803         int              timeout;
2804         char             cmdLen;
2805         char             CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2806         u8               cmd = io->cmd;
2807         MPT_ADAPTER *ioc = hd->ioc;
2808         int              ret = 0;
2809         unsigned long    timeleft;
2810         unsigned long    flags;
2811
2812         /* don't send internal command during diag reset */
2813         spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
2814         if (ioc->ioc_reset_in_progress) {
2815                 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2816                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2817                         "%s: busy with host reset\n", ioc->name, __func__));
2818                 return MPT_SCANDV_BUSY;
2819         }
2820         spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2821
2822         mutex_lock(&ioc->internal_cmds.mutex);
2823
2824         /* Set command specific information
2825          */
2826         switch (cmd) {
2827         case INQUIRY:
2828                 cmdLen = 6;
2829                 dir = MPI_SCSIIO_CONTROL_READ;
2830                 CDB[0] = cmd;
2831                 CDB[4] = io->size;
2832                 timeout = 10;
2833                 break;
2834
2835         case TEST_UNIT_READY:
2836                 cmdLen = 6;
2837                 dir = MPI_SCSIIO_CONTROL_READ;
2838                 timeout = 10;
2839                 break;
2840
2841         case START_STOP:
2842                 cmdLen = 6;
2843                 dir = MPI_SCSIIO_CONTROL_READ;
2844                 CDB[0] = cmd;
2845                 CDB[4] = 1;     /*Spin up the disk */
2846                 timeout = 15;
2847                 break;
2848
2849         case REQUEST_SENSE:
2850                 cmdLen = 6;
2851                 CDB[0] = cmd;
2852                 CDB[4] = io->size;
2853                 dir = MPI_SCSIIO_CONTROL_READ;
2854                 timeout = 10;
2855                 break;
2856
2857         case READ_BUFFER:
2858                 cmdLen = 10;
2859                 dir = MPI_SCSIIO_CONTROL_READ;
2860                 CDB[0] = cmd;
2861                 if (io->flags & MPT_ICFLAG_ECHO) {
2862                         CDB[1] = 0x0A;
2863                 } else {
2864                         CDB[1] = 0x02;
2865                 }
2866
2867                 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2868                         CDB[1] |= 0x01;
2869                 }
2870                 CDB[6] = (io->size >> 16) & 0xFF;
2871                 CDB[7] = (io->size >>  8) & 0xFF;
2872                 CDB[8] = io->size & 0xFF;
2873                 timeout = 10;
2874                 break;
2875
2876         case WRITE_BUFFER:
2877                 cmdLen = 10;
2878                 dir = MPI_SCSIIO_CONTROL_WRITE;
2879                 CDB[0] = cmd;
2880                 if (io->flags & MPT_ICFLAG_ECHO) {
2881                         CDB[1] = 0x0A;
2882                 } else {
2883                         CDB[1] = 0x02;
2884                 }
2885                 CDB[6] = (io->size >> 16) & 0xFF;
2886                 CDB[7] = (io->size >>  8) & 0xFF;
2887                 CDB[8] = io->size & 0xFF;
2888                 timeout = 10;
2889                 break;
2890
2891         case RESERVE:
2892                 cmdLen = 6;
2893                 dir = MPI_SCSIIO_CONTROL_READ;
2894                 CDB[0] = cmd;
2895                 timeout = 10;
2896                 break;
2897
2898         case RELEASE:
2899                 cmdLen = 6;
2900                 dir = MPI_SCSIIO_CONTROL_READ;
2901                 CDB[0] = cmd;
2902                 timeout = 10;
2903                 break;
2904
2905         case SYNCHRONIZE_CACHE:
2906                 cmdLen = 10;
2907                 dir = MPI_SCSIIO_CONTROL_READ;
2908                 CDB[0] = cmd;
2909 //              CDB[1] = 0x02;  /* set immediate bit */
2910                 timeout = 10;
2911                 break;
2912
2913         default:
2914                 /* Error Case */
2915                 ret = -EFAULT;
2916                 goto out;
2917         }
2918
2919         /* Get and Populate a free Frame
2920          * MsgContext set in mpt_get_msg_frame call
2921          */
2922         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
2923                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n",
2924                     ioc->name, __func__));
2925                 ret = MPT_SCANDV_BUSY;
2926                 goto out;
2927         }
2928
2929         pScsiReq = (SCSIIORequest_t *) mf;
2930
2931         /* Get the request index */
2932         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2933         ADD_INDEX_LOG(my_idx); /* for debug */
2934
2935         if (io->flags & MPT_ICFLAG_PHYS_DISK) {
2936                 pScsiReq->TargetID = io->physDiskNum;
2937                 pScsiReq->Bus = 0;
2938                 pScsiReq->ChainOffset = 0;
2939                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2940         } else {
2941                 pScsiReq->TargetID = io->id;
2942                 pScsiReq->Bus = io->channel;
2943                 pScsiReq->ChainOffset = 0;
2944                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2945         }
2946
2947         pScsiReq->CDBLength = cmdLen;
2948         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
2949
2950         pScsiReq->Reserved = 0;
2951
2952         pScsiReq->MsgFlags = mpt_msg_flags(ioc);
2953         /* MsgContext set in mpt_get_msg_fram call  */
2954
2955         int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
2956
2957         if (io->flags & MPT_ICFLAG_TAGGED_CMD)
2958                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
2959         else
2960                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2961
2962         if (cmd == REQUEST_SENSE) {
2963                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2964                 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2965                     "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd));
2966         }
2967
2968         for (ii = 0; ii < 16; ii++)
2969                 pScsiReq->CDB[ii] = CDB[ii];
2970
2971         pScsiReq->DataLength = cpu_to_le32(io->size);
2972         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
2973                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
2974
2975         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2976             "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%d\n",
2977             ioc->name, __func__, cmd, io->channel, io->id, io->lun));
2978
2979         if (dir == MPI_SCSIIO_CONTROL_READ)
2980                 ioc->add_sge((char *) &pScsiReq->SGL,
2981                     MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma);
2982         else
2983                 ioc->add_sge((char *) &pScsiReq->SGL,
2984                     MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma);
2985
2986         INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
2987         mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
2988         timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done,
2989             timeout*HZ);
2990         if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
2991                 ret = MPT_SCANDV_DID_RESET;
2992                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2993                     "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__,
2994                     cmd));
2995                 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
2996                         mpt_free_msg_frame(ioc, mf);
2997                         goto out;
2998                 }
2999                 if (!timeleft) {
3000                         printk(MYIOC_s_WARN_FMT
3001                                "Issuing Reset from %s!! doorbell=0x%08xh"
3002                                " cmd=0x%02x\n",
3003                                ioc->name, __func__, mpt_GetIocState(ioc, 0),
3004                                cmd);
3005                         mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
3006                         mpt_free_msg_frame(ioc, mf);
3007                 }
3008                 goto out;
3009         }
3010
3011         ret = ioc->internal_cmds.completion_code;
3012         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n",
3013                         ioc->name, __func__, ret));
3014
3015  out:
3016         CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
3017         mutex_unlock(&ioc->internal_cmds.mutex);
3018         return ret;
3019 }
3020
3021 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3022 /**
3023  *      mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3024  *      @hd: Pointer to a SCSI HOST structure
3025  *      @vdevice: virtual target device
3026  *
3027  *      Uses the ISR, but with special processing.
3028  *      MUST be single-threaded.
3029  *
3030  */
3031 static void
3032 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3033 {
3034         INTERNAL_CMD             iocmd;
3035
3036         /* Ignore hidden raid components, this is handled when the command
3037          * is sent to the volume
3038          */
3039         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3040                 return;
3041
3042         if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3043             !vdevice->configured_lun)
3044                 return;
3045
3046         /* Following parameters will not change
3047          * in this routine.
3048          */
3049         iocmd.cmd = SYNCHRONIZE_CACHE;
3050         iocmd.flags = 0;
3051         iocmd.physDiskNum = -1;
3052         iocmd.data = NULL;
3053         iocmd.data_dma = -1;
3054         iocmd.size = 0;
3055         iocmd.rsvd = iocmd.rsvd2 = 0;
3056         iocmd.channel = vdevice->vtarget->channel;
3057         iocmd.id = vdevice->vtarget->id;
3058         iocmd.lun = vdevice->lun;
3059
3060         mptscsih_do_cmd(hd, &iocmd);
3061 }
3062
3063 static ssize_t
3064 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3065                          char *buf)
3066 {
3067         struct Scsi_Host *host = class_to_shost(dev);
3068         MPT_SCSI_HOST   *hd = shost_priv(host);
3069         MPT_ADAPTER *ioc = hd->ioc;
3070
3071         return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3072             (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3073             (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3074             (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3075             ioc->facts.FWVersion.Word & 0x000000FF);
3076 }
3077 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3078
3079 static ssize_t
3080 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3081                            char *buf)
3082 {
3083         struct Scsi_Host *host = class_to_shost(dev);
3084         MPT_SCSI_HOST   *hd = shost_priv(host);
3085         MPT_ADAPTER *ioc = hd->ioc;
3086
3087         return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3088             (ioc->biosVersion & 0xFF000000) >> 24,
3089             (ioc->biosVersion & 0x00FF0000) >> 16,
3090             (ioc->biosVersion & 0x0000FF00) >> 8,
3091             ioc->biosVersion & 0x000000FF);
3092 }
3093 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3094
3095 static ssize_t
3096 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3097                           char *buf)
3098 {
3099         struct Scsi_Host *host = class_to_shost(dev);
3100         MPT_SCSI_HOST   *hd = shost_priv(host);
3101         MPT_ADAPTER *ioc = hd->ioc;
3102
3103         return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3104 }
3105 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3106
3107 static ssize_t
3108 mptscsih_version_product_show(struct device *dev,
3109                               struct device_attribute *attr,
3110 char *buf)
3111 {
3112         struct Scsi_Host *host = class_to_shost(dev);
3113         MPT_SCSI_HOST   *hd = shost_priv(host);
3114         MPT_ADAPTER *ioc = hd->ioc;
3115
3116         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3117 }
3118 static DEVICE_ATTR(version_product, S_IRUGO,
3119     mptscsih_version_product_show, NULL);
3120
3121 static ssize_t
3122 mptscsih_version_nvdata_persistent_show(struct device *dev,
3123                                         struct device_attribute *attr,
3124                                         char *buf)
3125 {
3126         struct Scsi_Host *host = class_to_shost(dev);
3127         MPT_SCSI_HOST   *hd = shost_priv(host);
3128         MPT_ADAPTER *ioc = hd->ioc;
3129
3130         return snprintf(buf, PAGE_SIZE, "%02xh\n",
3131             ioc->nvdata_version_persistent);
3132 }
3133 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3134     mptscsih_version_nvdata_persistent_show, NULL);
3135
3136 static ssize_t
3137 mptscsih_version_nvdata_default_show(struct device *dev,
3138                                      struct device_attribute *attr, char *buf)
3139 {
3140         struct Scsi_Host *host = class_to_shost(dev);
3141         MPT_SCSI_HOST   *hd = shost_priv(host);
3142         MPT_ADAPTER *ioc = hd->ioc;
3143
3144         return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3145 }
3146 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3147     mptscsih_version_nvdata_default_show, NULL);
3148
3149 static ssize_t
3150 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3151                          char *buf)
3152 {
3153         struct Scsi_Host *host = class_to_shost(dev);
3154         MPT_SCSI_HOST   *hd = shost_priv(host);
3155         MPT_ADAPTER *ioc = hd->ioc;
3156
3157         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3158 }
3159 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3160
3161 static ssize_t
3162 mptscsih_board_assembly_show(struct device *dev,
3163                              struct device_attribute *attr, char *buf)
3164 {
3165         struct Scsi_Host *host = class_to_shost(dev);
3166         MPT_SCSI_HOST   *hd = shost_priv(host);
3167         MPT_ADAPTER *ioc = hd->ioc;
3168
3169         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3170 }
3171 static DEVICE_ATTR(board_assembly, S_IRUGO,
3172     mptscsih_board_assembly_show, NULL);
3173
3174 static ssize_t
3175 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3176                            char *buf)
3177 {
3178         struct Scsi_Host *host = class_to_shost(dev);
3179         MPT_SCSI_HOST   *hd = shost_priv(host);
3180         MPT_ADAPTER *ioc = hd->ioc;
3181
3182         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3183 }
3184 static DEVICE_ATTR(board_tracer, S_IRUGO,
3185     mptscsih_board_tracer_show, NULL);
3186
3187 static ssize_t
3188 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3189                        char *buf)
3190 {
3191         struct Scsi_Host *host = class_to_shost(dev);
3192         MPT_SCSI_HOST   *hd = shost_priv(host);
3193         MPT_ADAPTER *ioc = hd->ioc;
3194
3195         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3196 }
3197 static DEVICE_ATTR(io_delay, S_IRUGO,
3198     mptscsih_io_delay_show, NULL);
3199
3200 static ssize_t
3201 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3202                            char *buf)
3203 {
3204         struct Scsi_Host *host = class_to_shost(dev);
3205         MPT_SCSI_HOST   *hd = shost_priv(host);
3206         MPT_ADAPTER *ioc = hd->ioc;
3207
3208         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3209 }
3210 static DEVICE_ATTR(device_delay, S_IRUGO,
3211     mptscsih_device_delay_show, NULL);
3212
3213 static ssize_t
3214 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3215                           char *buf)
3216 {
3217         struct Scsi_Host *host = class_to_shost(dev);
3218         MPT_SCSI_HOST   *hd = shost_priv(host);
3219         MPT_ADAPTER *ioc = hd->ioc;
3220
3221         return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3222 }
3223 static ssize_t
3224 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3225                            const char *buf, size_t count)
3226 {
3227         struct Scsi_Host *host = class_to_shost(dev);
3228         MPT_SCSI_HOST   *hd = shost_priv(host);
3229         MPT_ADAPTER *ioc = hd->ioc;
3230         int val = 0;
3231
3232         if (sscanf(buf, "%x", &val) != 1)
3233                 return -EINVAL;
3234
3235         ioc->debug_level = val;
3236         printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3237                                 ioc->name, ioc->debug_level);
3238         return strlen(buf);
3239 }
3240 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3241         mptscsih_debug_level_show, mptscsih_debug_level_store);
3242
3243 struct device_attribute *mptscsih_host_attrs[] = {
3244         &dev_attr_version_fw,
3245         &dev_attr_version_bios,
3246         &dev_attr_version_mpi,
3247         &dev_attr_version_product,
3248         &dev_attr_version_nvdata_persistent,
3249         &dev_attr_version_nvdata_default,
3250         &dev_attr_board_name,
3251         &dev_attr_board_assembly,
3252         &dev_attr_board_tracer,
3253         &dev_attr_io_delay,
3254         &dev_attr_device_delay,
3255         &dev_attr_debug_level,
3256         NULL,
3257 };
3258
3259 EXPORT_SYMBOL(mptscsih_host_attrs);
3260
3261 EXPORT_SYMBOL(mptscsih_remove);
3262 EXPORT_SYMBOL(mptscsih_shutdown);
3263 #ifdef CONFIG_PM
3264 EXPORT_SYMBOL(mptscsih_suspend);
3265 EXPORT_SYMBOL(mptscsih_resume);
3266 #endif
3267 EXPORT_SYMBOL(mptscsih_show_info);
3268 EXPORT_SYMBOL(mptscsih_info);
3269 EXPORT_SYMBOL(mptscsih_qcmd);
3270 EXPORT_SYMBOL(mptscsih_slave_destroy);
3271 EXPORT_SYMBOL(mptscsih_slave_configure);
3272 EXPORT_SYMBOL(mptscsih_abort);
3273 EXPORT_SYMBOL(mptscsih_dev_reset);
3274 EXPORT_SYMBOL(mptscsih_bus_reset);
3275 EXPORT_SYMBOL(mptscsih_host_reset);
3276 EXPORT_SYMBOL(mptscsih_bios_param);
3277 EXPORT_SYMBOL(mptscsih_io_done);
3278 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3279 EXPORT_SYMBOL(mptscsih_scandv_complete);
3280 EXPORT_SYMBOL(mptscsih_event_process);
3281 EXPORT_SYMBOL(mptscsih_ioc_reset);
3282 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3283
3284 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/