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   1 /*
   2  *  linux/drivers/message/fusion/mptscsih.c
   3  *      For use with LSI PCI chip/adapter(s)
   4  *      running LSI Fusion MPT (Message Passing Technology) firmware.
   5  *
   6  *  Copyright (c) 1999-2008 LSI Corporation
   7  *  (mailto:DL-MPTFusionLinux@lsi.com)
   8  *
   9  */
  10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  11 /*
  12     This program is free software; you can redistribute it and/or modify
  13     it under the terms of the GNU General Public License as published by
  14     the Free Software Foundation; version 2 of the License.
  15
  16     This program is distributed in the hope that it will be useful,
  17     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19     GNU General Public License for more details.
  20
  21     NO WARRANTY
  22     THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
  23     CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
  24     LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
  25     MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
  26     solely responsible for determining the appropriateness of using and
  27     distributing the Program and assumes all risks associated with its
  28     exercise of rights under this Agreement, including but not limited to
  29     the risks and costs of program errors, damage to or loss of data,
  30     programs or equipment, and unavailability or interruption of operations.
  31
  32     DISCLAIMER OF LIABILITY
  33     NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
  34     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35     DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
  36     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  37     TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  38     USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
  39     HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
  40
  41     You should have received a copy of the GNU General Public License
  42     along with this program; if not, write to the Free Software
  43     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  44 */
  45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  46
  47 #include <linux/module.h>
  48 #include <linux/kernel.h>
  49 #include <linux/init.h>
  50 #include <linux/errno.h>
  51 #include <linux/kdev_t.h>
  52 #include <linux/blkdev.h>
  53 #include <linux/delay.h>        /* for mdelay */
  54 #include <linux/interrupt.h>    /* needed for in_interrupt() proto */
  55 #include <linux/reboot.h>       /* notifier code */
  56 #include <linux/workqueue.h>
  57
  58 #include <scsi/scsi.h>
  59 #include <scsi/scsi_cmnd.h>
  60 #include <scsi/scsi_device.h>
  61 #include <scsi/scsi_host.h>
  62 #include <scsi/scsi_tcq.h>
  63 #include <scsi/scsi_dbg.h>
  64
  65 #include "mptbase.h"
  66 #include "mptscsih.h"
  67 #include "lsi/mpi_log_sas.h"
  68
  69 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  70 #define my_NAME         "Fusion MPT SCSI Host driver"
  71 #define my_VERSION      MPT_LINUX_VERSION_COMMON
  72 #define MYNAM           "mptscsih"
  73
  74 MODULE_AUTHOR(MODULEAUTHOR);
  75 MODULE_DESCRIPTION(my_NAME);
  76 MODULE_LICENSE("GPL");
  77 MODULE_VERSION(my_VERSION);
  78
  79 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  80 /*
  81  *  Other private/forward protos...
  82  */
  83 struct scsi_cmnd        *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
  84 static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i);
  85 static void     mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd);
  86 static int      SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd);
  87 int             mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
  88 static void     mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
  89 int             mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
  90
  91 static int      mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
  92                                  SCSIIORequest_t *pReq, int req_idx);
  93 static void     mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
  94 static void     mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
  95
  96 int     mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id,
  97                 int lun, int ctx2abort, ulong timeout);
  98
  99 int             mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
 100 int             mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
 101
 102 void
 103 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code);
 104 static int      mptscsih_get_completion_code(MPT_ADAPTER *ioc,
 105                 MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply);
 106 int             mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
 107 static int      mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
 108 static void     mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
 109
 110 static int
 111 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
 112                                 SCSITaskMgmtReply_t *pScsiTmReply);
 113 void            mptscsih_remove(struct pci_dev *);
 114 void            mptscsih_shutdown(struct pci_dev *);
 115 #ifdef CONFIG_PM
 116 int             mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
 117 int             mptscsih_resume(struct pci_dev *pdev);
 118 #endif
 119
 120 #define SNS_LEN(scp)    SCSI_SENSE_BUFFERSIZE
 121
 122
 123 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 124 /*
 125  *      mptscsih_getFreeChainBuffer - Function to get a free chain
 126  *      from the MPT_SCSI_HOST FreeChainQ.
 127  *      @ioc: Pointer to MPT_ADAPTER structure
 128  *      @req_idx: Index of the SCSI IO request frame. (output)
 129  *
 130  *      return SUCCESS or FAILED
 131  */
 132 static inline int
 133 mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
 134 {
 135         MPT_FRAME_HDR *chainBuf;
 136         unsigned long flags;
 137         int rc;
 138         int chain_idx;
 139
 140         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n",
 141             ioc->name));
 142         spin_lock_irqsave(&ioc->FreeQlock, flags);
 143         if (!list_empty(&ioc->FreeChainQ)) {
 144                 int offset;
 145
 146                 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR,
 147                                 u.frame.linkage.list);
 148                 list_del(&chainBuf->u.frame.linkage.list);
 149                 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer;
 150                 chain_idx = offset / ioc->req_sz;
 151                 rc = SUCCESS;
 152                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 153                     "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n",
 154                     ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx));
 155         } else {
 156                 rc = FAILED;
 157                 chain_idx = MPT_HOST_NO_CHAIN;
 158                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n",
 159                     ioc->name));
 160         }
 161         spin_unlock_irqrestore(&ioc->FreeQlock, flags);
 162
 163         *retIndex = chain_idx;
 164         return rc;
 165 } /* mptscsih_getFreeChainBuffer() */
 166
 167 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 168 /*
 169  *      mptscsih_AddSGE - Add a SGE (plus chain buffers) to the
 170  *      SCSIIORequest_t Message Frame.
 171  *      @ioc: Pointer to MPT_ADAPTER structure
 172  *      @SCpnt: Pointer to scsi_cmnd structure
 173  *      @pReq: Pointer to SCSIIORequest_t structure
 174  *
 175  *      Returns ...
 176  */
 177 static int
 178 mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
 179                 SCSIIORequest_t *pReq, int req_idx)
 180 {
 181         char    *psge;
 182         char    *chainSge;
 183         struct scatterlist *sg;
 184         int      frm_sz;
 185         int      sges_left, sg_done;
 186         int      chain_idx = MPT_HOST_NO_CHAIN;
 187         int      sgeOffset;
 188         int      numSgeSlots, numSgeThisFrame;
 189         u32      sgflags, sgdir, thisxfer = 0;
 190         int      chain_dma_off = 0;
 191         int      newIndex;
 192         int      ii;
 193         dma_addr_t v2;
 194         u32     RequestNB;
 195
 196         sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
 197         if (sgdir == MPI_SCSIIO_CONTROL_WRITE)  {
 198                 sgdir = MPT_TRANSFER_HOST_TO_IOC;
 199         } else {
 200                 sgdir = MPT_TRANSFER_IOC_TO_HOST;
 201         }
 202
 203         psge = (char *) &pReq->SGL;
 204         frm_sz = ioc->req_sz;
 205
 206         /* Map the data portion, if any.
 207          * sges_left  = 0 if no data transfer.
 208          */
 209         sges_left = scsi_dma_map(SCpnt);
 210         if (sges_left < 0)
 211                 return FAILED;
 212
 213         /* Handle the SG case.
 214          */
 215         sg = scsi_sglist(SCpnt);
 216         sg_done  = 0;
 217         sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION);
 218         chainSge = NULL;
 219
 220         /* Prior to entering this loop - the following must be set
 221          * current MF:  sgeOffset (bytes)
 222          *              chainSge (Null if original MF is not a chain buffer)
 223          *              sg_done (num SGE done for this MF)
 224          */
 225
 226 nextSGEset:
 227         numSgeSlots = ((frm_sz - sgeOffset) / ioc->SGE_size);
 228         numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
 229
 230         sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | sgdir;
 231
 232         /* Get first (num - 1) SG elements
 233          * Skip any SG entries with a length of 0
 234          * NOTE: at finish, sg and psge pointed to NEXT data/location positions
 235          */
 236         for (ii=0; ii < (numSgeThisFrame-1); ii++) {
 237                 thisxfer = sg_dma_len(sg);
 238                 if (thisxfer == 0) {
 239                         /* Get next SG element from the OS */
 240                         sg = sg_next(sg);
 241                         sg_done++;
 242                         continue;
 243                 }
 244
 245                 v2 = sg_dma_address(sg);
 246                 ioc->add_sge(psge, sgflags | thisxfer, v2);
 247
 248                 /* Get next SG element from the OS */
 249                 sg = sg_next(sg);
 250                 psge += ioc->SGE_size;
 251                 sgeOffset += ioc->SGE_size;
 252                 sg_done++;
 253         }
 254
 255         if (numSgeThisFrame == sges_left) {
 256                 /* Add last element, end of buffer and end of list flags.
 257                  */
 258                 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT |
 259                                 MPT_SGE_FLAGS_END_OF_BUFFER |
 260                                 MPT_SGE_FLAGS_END_OF_LIST;
 261
 262                 /* Add last SGE and set termination flags.
 263                  * Note: Last SGE may have a length of 0 - which should be ok.
 264                  */
 265                 thisxfer = sg_dma_len(sg);
 266
 267                 v2 = sg_dma_address(sg);
 268                 ioc->add_sge(psge, sgflags | thisxfer, v2);
 269                 sgeOffset += ioc->SGE_size;
 270                 sg_done++;
 271
 272                 if (chainSge) {
 273                         /* The current buffer is a chain buffer,
 274                          * but there is not another one.
 275                          * Update the chain element
 276                          * Offset and Length fields.
 277                          */
 278                         ioc->add_chain((char *)chainSge, 0, sgeOffset,
 279                                 ioc->ChainBufferDMA + chain_dma_off);
 280                 } else {
 281                         /* The current buffer is the original MF
 282                          * and there is no Chain buffer.
 283                          */
 284                         pReq->ChainOffset = 0;
 285                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
 286                         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 287                             "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
 288                         ioc->RequestNB[req_idx] = RequestNB;
 289                 }
 290         } else {
 291                 /* At least one chain buffer is needed.
 292                  * Complete the first MF
 293                  *  - last SGE element, set the LastElement bit
 294                  *  - set ChainOffset (words) for orig MF
 295                  *             (OR finish previous MF chain buffer)
 296                  *  - update MFStructPtr ChainIndex
 297                  *  - Populate chain element
 298                  * Also
 299                  * Loop until done.
 300                  */
 301
 302                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n",
 303                                 ioc->name, sg_done));
 304
 305                 /* Set LAST_ELEMENT flag for last non-chain element
 306                  * in the buffer. Since psge points at the NEXT
 307                  * SGE element, go back one SGE element, update the flags
 308                  * and reset the pointer. (Note: sgflags & thisxfer are already
 309                  * set properly).
 310                  */
 311                 if (sg_done) {
 312                         u32 *ptmp = (u32 *) (psge - ioc->SGE_size);
 313                         sgflags = le32_to_cpu(*ptmp);
 314                         sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT;
 315                         *ptmp = cpu_to_le32(sgflags);
 316                 }
 317
 318                 if (chainSge) {
 319                         /* The current buffer is a chain buffer.
 320                          * chainSge points to the previous Chain Element.
 321                          * Update its chain element Offset and Length (must
 322                          * include chain element size) fields.
 323                          * Old chain element is now complete.
 324                          */
 325                         u8 nextChain = (u8) (sgeOffset >> 2);
 326                         sgeOffset += ioc->SGE_size;
 327                         ioc->add_chain((char *)chainSge, nextChain, sgeOffset,
 328                                          ioc->ChainBufferDMA + chain_dma_off);
 329                 } else {
 330                         /* The original MF buffer requires a chain buffer -
 331                          * set the offset.
 332                          * Last element in this MF is a chain element.
 333                          */
 334                         pReq->ChainOffset = (u8) (sgeOffset >> 2);
 335                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
 336                         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
 337                         ioc->RequestNB[req_idx] = RequestNB;
 338                 }
 339
 340                 sges_left -= sg_done;
 341
 342
 343                 /* NOTE: psge points to the beginning of the chain element
 344                  * in current buffer. Get a chain buffer.
 345                  */
 346                 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
 347                         dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 348                             "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
 349                             ioc->name, pReq->CDB[0], SCpnt));
 350                         return FAILED;
 351                 }
 352
 353                 /* Update the tracking arrays.
 354                  * If chainSge == NULL, update ReqToChain, else ChainToChain
 355                  */
 356                 if (chainSge) {
 357                         ioc->ChainToChain[chain_idx] = newIndex;
 358                 } else {
 359                         ioc->ReqToChain[req_idx] = newIndex;
 360                 }
 361                 chain_idx = newIndex;
 362                 chain_dma_off = ioc->req_sz * chain_idx;
 363
 364                 /* Populate the chainSGE for the current buffer.
 365                  * - Set chain buffer pointer to psge and fill
 366                  *   out the Address and Flags fields.
 367                  */
 368                 chainSge = (char *) psge;
 369                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "  Current buff @ %p (index 0x%x)",
 370                     ioc->name, psge, req_idx));
 371
 372                 /* Start the SGE for the next buffer
 373                  */
 374                 psge = (char *) (ioc->ChainBuffer + chain_dma_off);
 375                 sgeOffset = 0;
 376                 sg_done = 0;
 377
 378                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "  Chain buff @ %p (index 0x%x)\n",
 379                     ioc->name, psge, chain_idx));
 380
 381                 /* Start the SGE for the next buffer
 382                  */
 383
 384                 goto nextSGEset;
 385         }
 386
 387         return SUCCESS;
 388 } /* mptscsih_AddSGE() */
 389
 390 static void
 391 mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
 392     U32 SlotStatus)
 393 {
 394         MPT_FRAME_HDR *mf;
 395         SEPRequest_t     *SEPMsg;
 396
 397         if (ioc->bus_type != SAS)
 398                 return;
 399
 400         /* Not supported for hidden raid components
 401          */
 402         if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
 403                 return;
 404
 405         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
 406                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
 407                     ioc->name,__func__));
 408                 return;
 409         }
 410
 411         SEPMsg = (SEPRequest_t *)mf;
 412         SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
 413         SEPMsg->Bus = vtarget->channel;
 414         SEPMsg->TargetID = vtarget->id;
 415         SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
 416         SEPMsg->SlotStatus = SlotStatus;
 417         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 418             "Sending SEP cmd=%x channel=%d id=%d\n",
 419             ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
 420         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
 421 }
 422
 423 #ifdef CONFIG_FUSION_LOGGING
 424 /**
 425  *      mptscsih_info_scsiio - debug print info on reply frame
 426  *      @ioc: Pointer to MPT_ADAPTER structure
 427  *      @sc: original scsi cmnd pointer
 428  *      @pScsiReply: Pointer to MPT reply frame
 429  *
 430  *      MPT_DEBUG_REPLY needs to be enabled to obtain this info
 431  *
 432  *      Refer to lsi/mpi.h.
 433  **/
 434 static void
 435 mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
 436 {
 437         char    *desc = NULL;
 438         char    *desc1 = NULL;
 439         u16     ioc_status;
 440         u8      skey, asc, ascq;
 441
 442         ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
 443
 444         switch (ioc_status) {
 445
 446         case MPI_IOCSTATUS_SUCCESS:
 447                 desc = "success";
 448                 break;
 449         case MPI_IOCSTATUS_SCSI_INVALID_BUS:
 450                 desc = "invalid bus";
 451                 break;
 452         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
 453                 desc = "invalid target_id";
 454                 break;
 455         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
 456                 desc = "device not there";
 457                 break;
 458         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
 459                 desc = "data overrun";
 460                 break;
 461         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
 462                 desc = "data underrun";
 463                 break;
 464         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
 465                 desc = "I/O data error";
 466                 break;
 467         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
 468                 desc = "protocol error";
 469                 break;
 470         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
 471                 desc = "task terminated";
 472                 break;
 473         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
 474                 desc = "residual mismatch";
 475                 break;
 476         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
 477                 desc = "task management failed";
 478                 break;
 479         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
 480                 desc = "IOC terminated";
 481                 break;
 482         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
 483                 desc = "ext terminated";
 484                 break;
 485         default:
 486                 desc = "";
 487                 break;
 488         }
 489
 490         switch (pScsiReply->SCSIStatus)
 491         {
 492
 493         case MPI_SCSI_STATUS_SUCCESS:
 494                 desc1 = "success";
 495                 break;
 496         case MPI_SCSI_STATUS_CHECK_CONDITION:
 497                 desc1 = "check condition";
 498                 break;
 499         case MPI_SCSI_STATUS_CONDITION_MET:
 500                 desc1 = "condition met";
 501                 break;
 502         case MPI_SCSI_STATUS_BUSY:
 503                 desc1 = "busy";
 504                 break;
 505         case MPI_SCSI_STATUS_INTERMEDIATE:
 506                 desc1 = "intermediate";
 507                 break;
 508         case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET:
 509                 desc1 = "intermediate condmet";
 510                 break;
 511         case MPI_SCSI_STATUS_RESERVATION_CONFLICT:
 512                 desc1 = "reservation conflict";
 513                 break;
 514         case MPI_SCSI_STATUS_COMMAND_TERMINATED:
 515                 desc1 = "command terminated";
 516                 break;
 517         case MPI_SCSI_STATUS_TASK_SET_FULL:
 518                 desc1 = "task set full";
 519                 break;
 520         case MPI_SCSI_STATUS_ACA_ACTIVE:
 521                 desc1 = "aca active";
 522                 break;
 523         case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT:
 524                 desc1 = "fcpext device logged out";
 525                 break;
 526         case MPI_SCSI_STATUS_FCPEXT_NO_LINK:
 527                 desc1 = "fcpext no link";
 528                 break;
 529         case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED:
 530                 desc1 = "fcpext unassigned";
 531                 break;
 532         default:
 533                 desc1 = "";
 534                 break;
 535         }
 536
 537         scsi_print_command(sc);
 538         printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %d\n",
 539             ioc->name, pScsiReply->Bus, pScsiReply->TargetID, sc->device->lun);
 540         printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
 541             "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
 542             scsi_get_resid(sc));
 543         printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, "
 544             "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag),
 545             le32_to_cpu(pScsiReply->TransferCount), sc->result);
 546
 547         printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), "
 548             "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
 549             ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus,
 550             pScsiReply->SCSIState);
 551
 552         if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
 553                 skey = sc->sense_buffer[2] & 0x0F;
 554                 asc = sc->sense_buffer[12];
 555                 ascq = sc->sense_buffer[13];
 556
 557                 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: "
 558                     "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq);
 559         }
 560
 561         /*
 562          *  Look for + dump FCP ResponseInfo[]!
 563          */
 564         if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
 565             pScsiReply->ResponseInfo)
 566                 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n",
 567                     ioc->name, le32_to_cpu(pScsiReply->ResponseInfo));
 568 }
 569 #endif
 570
 571 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 572 /*
 573  *      mptscsih_io_done - Main SCSI IO callback routine registered to
 574  *      Fusion MPT (base) driver
 575  *      @ioc: Pointer to MPT_ADAPTER structure
 576  *      @mf: Pointer to original MPT request frame
 577  *      @r: Pointer to MPT reply frame (NULL if TurboReply)
 578  *
 579  *      This routine is called from mpt.c::mpt_interrupt() at the completion
 580  *      of any SCSI IO request.
 581  *      This routine is registered with the Fusion MPT (base) driver at driver
 582  *      load/init time via the mpt_register() API call.
 583  *
 584  *      Returns 1 indicating alloc'd request frame ptr should be freed.
 585  */
 586 int
 587 mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
 588 {
 589         struct scsi_cmnd        *sc;
 590         MPT_SCSI_HOST   *hd;
 591         SCSIIORequest_t *pScsiReq;
 592         SCSIIOReply_t   *pScsiReply;
 593         u16              req_idx, req_idx_MR;
 594         VirtDevice       *vdevice;
 595         VirtTarget       *vtarget;
 596
 597         hd = shost_priv(ioc->sh);
 598         req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
 599         req_idx_MR = (mr != NULL) ?
 600             le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
 601
 602         /* Special case, where already freed message frame is received from
 603          * Firmware. It happens with Resetting IOC.
 604          * Return immediately. Do not care
 605          */
 606         if ((req_idx != req_idx_MR) ||
 607             (le32_to_cpu(mf->u.frame.linkage.arg1) == 0xdeadbeaf))
 608                 return 0;
 609
 610         sc = mptscsih_getclear_scsi_lookup(ioc, req_idx);
 611         if (sc == NULL) {
 612                 MPIHeader_t *hdr = (MPIHeader_t *)mf;
 613
 614                 /* Remark: writeSDP1 will use the ScsiDoneCtx
 615                  * If a SCSI I/O cmd, device disabled by OS and
 616                  * completion done. Cannot touch sc struct. Just free mem.
 617                  */
 618                 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST)
 619                         printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n",
 620                         ioc->name);
 621
 622                 mptscsih_freeChainBuffers(ioc, req_idx);
 623                 return 1;
 624         }
 625
 626         if ((unsigned char *)mf != sc->host_scribble) {
 627                 mptscsih_freeChainBuffers(ioc, req_idx);
 628                 return 1;
 629         }
 630
 631         if (ioc->bus_type == SAS) {
 632                 VirtDevice *vdevice = sc->device->hostdata;
 633
 634                 if (!vdevice || !vdevice->vtarget ||
 635                     vdevice->vtarget->deleted) {
 636                         sc->result = DID_NO_CONNECT << 16;
 637                         goto out;
 638                 }
 639         }
 640
 641         sc->host_scribble = NULL;
 642         sc->result = DID_OK << 16;              /* Set default reply as OK */
 643         pScsiReq = (SCSIIORequest_t *) mf;
 644         pScsiReply = (SCSIIOReply_t *) mr;
 645
 646         if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
 647                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 648                         "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n",
 649                         ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag));
 650         }else{
 651                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 652                         "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
 653                         ioc->name, mf, mr, sc, req_idx));
 654         }
 655
 656         if (pScsiReply == NULL) {
 657                 /* special context reply handling */
 658                 ;
 659         } else {
 660                 u32      xfer_cnt;
 661                 u16      status;
 662                 u8       scsi_state, scsi_status;
 663                 u32      log_info;
 664
 665                 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
 666                 scsi_state = pScsiReply->SCSIState;
 667                 scsi_status = pScsiReply->SCSIStatus;
 668                 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
 669                 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
 670                 log_info = le32_to_cpu(pScsiReply->IOCLogInfo);
 671
 672                 /*
 673                  *  if we get a data underrun indication, yet no data was
 674                  *  transferred and the SCSI status indicates that the
 675                  *  command was never started, change the data underrun
 676                  *  to success
 677                  */
 678                 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
 679                     (scsi_status == MPI_SCSI_STATUS_BUSY ||
 680                      scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT ||
 681                      scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) {
 682                         status = MPI_IOCSTATUS_SUCCESS;
 683                 }
 684
 685                 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
 686                         mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);
 687
 688                 /*
 689                  *  Look for + dump FCP ResponseInfo[]!
 690                  */
 691                 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
 692                     pScsiReply->ResponseInfo) {
 693                         printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%d] "
 694                         "FCP_ResponseInfo=%08xh\n", ioc->name,
 695                         sc->device->host->host_no, sc->device->channel,
 696                         sc->device->id, sc->device->lun,
 697                         le32_to_cpu(pScsiReply->ResponseInfo));
 698                 }
 699
 700                 switch(status) {
 701                 case MPI_IOCSTATUS_BUSY:                        /* 0x0002 */
 702                 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:      /* 0x0006 */
 703                         /* CHECKME!
 704                          * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry)
 705                          * But not: DID_BUS_BUSY lest one risk
 706                          * killing interrupt handler:-(
 707                          */
 708                         sc->result = SAM_STAT_BUSY;
 709                         break;
 710
 711                 case MPI_IOCSTATUS_SCSI_INVALID_BUS:            /* 0x0041 */
 712                 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:       /* 0x0042 */
 713                         sc->result = DID_BAD_TARGET << 16;
 714                         break;
 715
 716                 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
 717                         /* Spoof to SCSI Selection Timeout! */
 718                         if (ioc->bus_type != FC)
 719                                 sc->result = DID_NO_CONNECT << 16;
 720                         /* else fibre, just stall until rescan event */
 721                         else
 722                                 sc->result = DID_REQUEUE << 16;
 723
 724                         if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
 725                                 hd->sel_timeout[pScsiReq->TargetID]++;
 726
 727                         vdevice = sc->device->hostdata;
 728                         if (!vdevice)
 729                                 break;
 730                         vtarget = vdevice->vtarget;
 731                         if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) {
 732                                 mptscsih_issue_sep_command(ioc, vtarget,
 733                                     MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED);
 734                                 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON;
 735                         }
 736                         break;
 737
 738                 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
 739                         if ( ioc->bus_type == SAS ) {
 740                                 u16 ioc_status = le16_to_cpu(pScsiReply->IOCStatus);
 741                                 if (ioc_status & MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) {
 742                                         if ((log_info & SAS_LOGINFO_MASK)
 743                                             == SAS_LOGINFO_NEXUS_LOSS) {
 744                                                 sc->result = (DID_BUS_BUSY << 16);
 745                                                 break;
 746                                         }
 747                                 }
 748                         } else if (ioc->bus_type == FC) {
 749                                 /*
 750                                  * The FC IOC may kill a request for variety of
 751                                  * reasons, some of which may be recovered by a
 752                                  * retry, some which are unlikely to be
 753                                  * recovered. Return DID_ERROR instead of
 754                                  * DID_RESET to permit retry of the command,
 755                                  * just not an infinite number of them
 756                                  */
 757                                 sc->result = DID_ERROR << 16;
 758                                 break;
 759                         }
 760
 761                         /*
 762                          * Allow non-SAS & non-NEXUS_LOSS to drop into below code
 763                          */
 764
 765                 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
 766                         /* Linux handles an unsolicited DID_RESET better
 767                          * than an unsolicited DID_ABORT.
 768                          */
 769                         sc->result = DID_RESET << 16;
 770
 771                 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
 772                         if (ioc->bus_type == FC)
 773                                 sc->result = DID_ERROR << 16;
 774                         else
 775                                 sc->result = DID_RESET << 16;
 776                         break;
 777
 778                 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:      /* 0x0049 */
 779                         scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
 780                         if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
 781                                 sc->result=DID_SOFT_ERROR << 16;
 782                         else /* Sufficient data transfer occurred */
 783                                 sc->result = (DID_OK << 16) | scsi_status;
 784                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 785                             "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
 786                             ioc->name, sc->result, sc->device->channel, sc->device->id));
 787                         break;
 788
 789                 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
 790                         /*
 791                          *  Do upfront check for valid SenseData and give it
 792                          *  precedence!
 793                          */
 794                         sc->result = (DID_OK << 16) | scsi_status;
 795                         if (!(scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
 796
 797                                 /*
 798                                  * For an Errata on LSI53C1030
 799                                  * When the length of request data
 800                                  * and transfer data are different
 801                                  * with result of command (READ or VERIFY),
 802                                  * DID_SOFT_ERROR is set.
 803                                  */
 804                                 if (ioc->bus_type == SPI) {
 805                                         if (pScsiReq->CDB[0] == READ_6  ||
 806                                             pScsiReq->CDB[0] == READ_10 ||
 807                                             pScsiReq->CDB[0] == READ_12 ||
 808                                             pScsiReq->CDB[0] == READ_16 ||
 809                                             pScsiReq->CDB[0] == VERIFY  ||
 810                                             pScsiReq->CDB[0] == VERIFY_16) {
 811                                                 if (scsi_bufflen(sc) !=
 812                                                         xfer_cnt) {
 813                                                         sc->result =
 814                                                         DID_SOFT_ERROR << 16;
 815                                                     printk(KERN_WARNING "Errata"
 816                                                     "on LSI53C1030 occurred."
 817                                                     "sc->req_bufflen=0x%02x,"
 818                                                     "xfer_cnt=0x%02x\n",
 819                                                     scsi_bufflen(sc),
 820                                                     xfer_cnt);
 821                                                 }
 822                                         }
 823                                 }
 824
 825                                 if (xfer_cnt < sc->underflow) {
 826                                         if (scsi_status == SAM_STAT_BUSY)
 827                                                 sc->result = SAM_STAT_BUSY;
 828                                         else
 829                                                 sc->result = DID_SOFT_ERROR << 16;
 830                                 }
 831                                 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
 832                                         /* What to do?
 833                                         */
 834                                         sc->result = DID_SOFT_ERROR << 16;
 835                                 }
 836                                 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
 837                                         /*  Not real sure here either...  */
 838                                         sc->result = DID_RESET << 16;
 839                                 }
 840                         }
 841
 842
 843                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 844                             "  sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
 845                             ioc->name, sc->underflow));
 846                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 847                             "  ActBytesXferd=%02xh\n", ioc->name, xfer_cnt));
 848
 849                         /* Report Queue Full
 850                          */
 851                         if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
 852                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 853
 854                         break;
 855
 856                 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:           /* 0x0044 */
 857                         scsi_set_resid(sc, 0);
 858                 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
 859                 case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
 860                         sc->result = (DID_OK << 16) | scsi_status;
 861                         if (scsi_state == 0) {
 862                                 ;
 863                         } else if (scsi_state &
 864                             MPI_SCSI_STATE_AUTOSENSE_VALID) {
 865
 866                                 /*
 867                                  * For potential trouble on LSI53C1030.
 868                                  * (date:2007.xx.)
 869                                  * It is checked whether the length of
 870                                  * request data is equal to
 871                                  * the length of transfer and residual.
 872                                  * MEDIUM_ERROR is set by incorrect data.
 873                                  */
 874                                 if ((ioc->bus_type == SPI) &&
 875                                         (sc->sense_buffer[2] & 0x20)) {
 876                                         u32      difftransfer;
 877                                         difftransfer =
 878                                         sc->sense_buffer[3] << 24 |
 879                                         sc->sense_buffer[4] << 16 |
 880                                         sc->sense_buffer[5] << 8 |
 881                                         sc->sense_buffer[6];
 882                                         if (((sc->sense_buffer[3] & 0x80) ==
 883                                                 0x80) && (scsi_bufflen(sc)
 884                                                 != xfer_cnt)) {
 885                                                 sc->sense_buffer[2] =
 886                                                     MEDIUM_ERROR;
 887                                                 sc->sense_buffer[12] = 0xff;
 888                                                 sc->sense_buffer[13] = 0xff;
 889                                                 printk(KERN_WARNING"Errata"
 890                                                 "on LSI53C1030 occurred."
 891                                                 "sc->req_bufflen=0x%02x,"
 892                                                 "xfer_cnt=0x%02x\n" ,
 893                                                 scsi_bufflen(sc),
 894                                                 xfer_cnt);
 895                                         }
 896                                         if (((sc->sense_buffer[3] & 0x80)
 897                                                 != 0x80) &&
 898                                                 (scsi_bufflen(sc) !=
 899                                                 xfer_cnt + difftransfer)) {
 900                                                 sc->sense_buffer[2] =
 901                                                         MEDIUM_ERROR;
 902                                                 sc->sense_buffer[12] = 0xff;
 903                                                 sc->sense_buffer[13] = 0xff;
 904                                                 printk(KERN_WARNING
 905                                                 "Errata on LSI53C1030 occurred"
 906                                                 "sc->req_bufflen=0x%02x,"
 907                                                 " xfer_cnt=0x%02x,"
 908                                                 "difftransfer=0x%02x\n",
 909                                                 scsi_bufflen(sc),
 910                                                 xfer_cnt,
 911                                                 difftransfer);
 912                                         }
 913                                 }
 914
 915                                 /*
 916                                  * If running against circa 200003dd 909 MPT f/w,
 917                                  * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
 918                                  * (QUEUE_FULL) returned from device! --> get 0x0000?128
 919                                  * and with SenseBytes set to 0.
 920                                  */
 921                                 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
 922                                         mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 923
 924                         }
 925                         else if (scsi_state &
 926                                  (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
 927                            ) {
 928                                 /*
 929                                  * What to do?
 930                                  */
 931                                 sc->result = DID_SOFT_ERROR << 16;
 932                         }
 933                         else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
 934                                 /*  Not real sure here either...  */
 935                                 sc->result = DID_RESET << 16;
 936                         }
 937                         else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
 938                                 /* Device Inq. data indicates that it supports
 939                                  * QTags, but rejects QTag messages.
 940                                  * This command completed OK.
 941                                  *
 942                                  * Not real sure here either so do nothing...  */
 943                         }
 944
 945                         if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
 946                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 947
 948                         /* Add handling of:
 949                          * Reservation Conflict, Busy,
 950                          * Command Terminated, CHECK
 951                          */
 952                         break;
 953
 954                 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
 955                         sc->result = DID_SOFT_ERROR << 16;
 956                         break;
 957
 958                 case MPI_IOCSTATUS_INVALID_FUNCTION:            /* 0x0001 */
 959                 case MPI_IOCSTATUS_INVALID_SGL:                 /* 0x0003 */
 960                 case MPI_IOCSTATUS_INTERNAL_ERROR:              /* 0x0004 */
 961                 case MPI_IOCSTATUS_RESERVED:                    /* 0x0005 */
 962                 case MPI_IOCSTATUS_INVALID_FIELD:               /* 0x0007 */
 963                 case MPI_IOCSTATUS_INVALID_STATE:               /* 0x0008 */
 964                 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
 965                 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:       /* 0x004A */
 966                 default:
 967                         /*
 968                          * What to do?
 969                          */
 970                         sc->result = DID_SOFT_ERROR << 16;
 971                         break;
 972
 973                 }       /* switch(status) */
 974
 975 #ifdef CONFIG_FUSION_LOGGING
 976                 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
 977                         mptscsih_info_scsiio(ioc, sc, pScsiReply);
 978 #endif
 979
 980         } /* end of address reply case */
 981 out:
 982         /* Unmap the DMA buffers, if any. */
 983         scsi_dma_unmap(sc);
 984
 985         sc->scsi_done(sc);              /* Issue the command callback */
 986
 987         /* Free Chain buffers */
 988         mptscsih_freeChainBuffers(ioc, req_idx);
 989         return 1;
 990 }
 991
 992 /*
 993  *      mptscsih_flush_running_cmds - For each command found, search
 994  *              Scsi_Host instance taskQ and reply to OS.
 995  *              Called only if recovering from a FW reload.
 996  *      @hd: Pointer to a SCSI HOST structure
 997  *
 998  *      Returns: None.
 999  *
1000  *      Must be called while new I/Os are being queued.
1001  */
1002 static void
1003 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
1004 {
1005         MPT_ADAPTER *ioc = hd->ioc;
1006         struct scsi_cmnd *sc;
1007         SCSIIORequest_t *mf = NULL;
1008         int              ii;
1009         int              channel, id;
1010
1011         for (ii= 0; ii < ioc->req_depth; ii++) {
1012                 sc = mptscsih_getclear_scsi_lookup(ioc, ii);
1013                 if (!sc)
1014                         continue;
1015                 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1016                 if (!mf)
1017                         continue;
1018                 channel = mf->Bus;
1019                 id = mf->TargetID;
1020                 mptscsih_freeChainBuffers(ioc, ii);
1021                 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1022                 if ((unsigned char *)mf != sc->host_scribble)
1023                         continue;
1024                 scsi_dma_unmap(sc);
1025                 sc->result = DID_RESET << 16;
1026                 sc->host_scribble = NULL;
1027                 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
1028                     "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, "
1029                     "idx=%x\n", ioc->name, channel, id, sc, mf, ii));
1030                 sc->scsi_done(sc);
1031         }
1032 }
1033
1034 /*
1035  *      mptscsih_search_running_cmds - Delete any commands associated
1036  *              with the specified target and lun. Function called only
1037  *              when a lun is disable by mid-layer.
1038  *              Do NOT access the referenced scsi_cmnd structure or
1039  *              members. Will cause either a paging or NULL ptr error.
1040  *              (BUT, BUT, BUT, the code does reference it! - mdr)
1041  *      @hd: Pointer to a SCSI HOST structure
1042  *      @vdevice: per device private data
1043  *
1044  *      Returns: None.
1045  *
1046  *      Called from slave_destroy.
1047  */
1048 static void
1049 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
1050 {
1051         SCSIIORequest_t *mf = NULL;
1052         int              ii;
1053         struct scsi_cmnd *sc;
1054         struct scsi_lun  lun;
1055         MPT_ADAPTER *ioc = hd->ioc;
1056         unsigned long   flags;
1057
1058         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1059         for (ii = 0; ii < ioc->req_depth; ii++) {
1060                 if ((sc = ioc->ScsiLookup[ii]) != NULL) {
1061
1062                         mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1063                         if (mf == NULL)
1064                                 continue;
1065                         /* If the device is a hidden raid component, then its
1066                          * expected that the mf->function will be RAID_SCSI_IO
1067                          */
1068                         if (vdevice->vtarget->tflags &
1069                             MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
1070                             MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
1071                                 continue;
1072
1073                         int_to_scsilun(vdevice->lun, &lun);
1074                         if ((mf->Bus != vdevice->vtarget->channel) ||
1075                             (mf->TargetID != vdevice->vtarget->id) ||
1076                             memcmp(lun.scsi_lun, mf->LUN, 8))
1077                                 continue;
1078
1079                         if ((unsigned char *)mf != sc->host_scribble)
1080                                 continue;
1081                         ioc->ScsiLookup[ii] = NULL;
1082                         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1083                         mptscsih_freeChainBuffers(ioc, ii);
1084                         mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1085                         scsi_dma_unmap(sc);
1086                         sc->host_scribble = NULL;
1087                         sc->result = DID_NO_CONNECT << 16;
1088                         dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device,
1089                            MYIOC_s_FMT "completing cmds: fw_channel %d, "
1090                            "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name,
1091                            vdevice->vtarget->channel, vdevice->vtarget->id,
1092                            sc, mf, ii));
1093                         sc->scsi_done(sc);
1094                         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1095                 }
1096         }
1097         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1098         return;
1099 }
1100
1101 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1102
1103 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1104 /*
1105  *      mptscsih_report_queue_full - Report QUEUE_FULL status returned
1106  *      from a SCSI target device.
1107  *      @sc: Pointer to scsi_cmnd structure
1108  *      @pScsiReply: Pointer to SCSIIOReply_t
1109  *      @pScsiReq: Pointer to original SCSI request
1110  *
1111  *      This routine periodically reports QUEUE_FULL status returned from a
1112  *      SCSI target device.  It reports this to the console via kernel
1113  *      printk() API call, not more than once every 10 seconds.
1114  */
1115 static void
1116 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1117 {
1118         long time = jiffies;
1119         MPT_SCSI_HOST           *hd;
1120         MPT_ADAPTER     *ioc;
1121
1122         if (sc->device == NULL)
1123                 return;
1124         if (sc->device->host == NULL)
1125                 return;
1126         if ((hd = shost_priv(sc->device->host)) == NULL)
1127                 return;
1128         ioc = hd->ioc;
1129         if (time - hd->last_queue_full > 10 * HZ) {
1130                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n",
1131                                 ioc->name, 0, sc->device->id, sc->device->lun));
1132                 hd->last_queue_full = time;
1133         }
1134 }
1135
1136 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1137 /*
1138  *      mptscsih_remove - Removed scsi devices
1139  *      @pdev: Pointer to pci_dev structure
1140  *
1141  *
1142  */
1143 void
1144 mptscsih_remove(struct pci_dev *pdev)
1145 {
1146         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1147         struct Scsi_Host        *host = ioc->sh;
1148         MPT_SCSI_HOST           *hd;
1149         int sz1;
1150
1151         if(!host) {
1152                 mpt_detach(pdev);
1153                 return;
1154         }
1155
1156         scsi_remove_host(host);
1157
1158         if((hd = shost_priv(host)) == NULL)
1159                 return;
1160
1161         mptscsih_shutdown(pdev);
1162
1163         sz1=0;
1164
1165         if (ioc->ScsiLookup != NULL) {
1166                 sz1 = ioc->req_depth * sizeof(void *);
1167                 kfree(ioc->ScsiLookup);
1168                 ioc->ScsiLookup = NULL;
1169         }
1170
1171         dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1172             "Free'd ScsiLookup (%d) memory\n",
1173             ioc->name, sz1));
1174
1175         kfree(hd->info_kbuf);
1176
1177         /* NULL the Scsi_Host pointer
1178          */
1179         ioc->sh = NULL;
1180
1181         scsi_host_put(host);
1182
1183         mpt_detach(pdev);
1184
1185 }
1186
1187 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1188 /*
1189  *      mptscsih_shutdown - reboot notifier
1190  *
1191  */
1192 void
1193 mptscsih_shutdown(struct pci_dev *pdev)
1194 {
1195 }
1196
1197 #ifdef CONFIG_PM
1198 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1199 /*
1200  *      mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1201  *
1202  *
1203  */
1204 int
1205 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1206 {
1207         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1208
1209         scsi_block_requests(ioc->sh);
1210         flush_scheduled_work();
1211         mptscsih_shutdown(pdev);
1212         return mpt_suspend(pdev,state);
1213 }
1214
1215 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1216 /*
1217  *      mptscsih_resume - Fusion MPT scsi driver resume routine.
1218  *
1219  *
1220  */
1221 int
1222 mptscsih_resume(struct pci_dev *pdev)
1223 {
1224         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1225         int rc;
1226
1227         rc = mpt_resume(pdev);
1228         scsi_unblock_requests(ioc->sh);
1229         return rc;
1230 }
1231
1232 #endif
1233
1234 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1235 /**
1236  *      mptscsih_info - Return information about MPT adapter
1237  *      @SChost: Pointer to Scsi_Host structure
1238  *
1239  *      (linux scsi_host_template.info routine)
1240  *
1241  *      Returns pointer to buffer where information was written.
1242  */
1243 const char *
1244 mptscsih_info(struct Scsi_Host *SChost)
1245 {
1246         MPT_SCSI_HOST *h;
1247         int size = 0;
1248
1249         h = shost_priv(SChost);
1250
1251         if (h) {
1252                 if (h->info_kbuf == NULL)
1253                         if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1254                                 return h->info_kbuf;
1255                 h->info_kbuf[0] = '\0';
1256
1257                 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1258                 h->info_kbuf[size-1] = '\0';
1259         }
1260
1261         return h->info_kbuf;
1262 }
1263
1264 struct info_str {
1265         char *buffer;
1266         int   length;
1267         int   offset;
1268         int   pos;
1269 };
1270
1271 static void
1272 mptscsih_copy_mem_info(struct info_str *info, char *data, int len)
1273 {
1274         if (info->pos + len > info->length)
1275                 len = info->length - info->pos;
1276
1277         if (info->pos + len < info->offset) {
1278                 info->pos += len;
1279                 return;
1280         }
1281
1282         if (info->pos < info->offset) {
1283                 data += (info->offset - info->pos);
1284                 len  -= (info->offset - info->pos);
1285         }
1286
1287         if (len > 0) {
1288                 memcpy(info->buffer + info->pos, data, len);
1289                 info->pos += len;
1290         }
1291 }
1292
1293 static int
1294 mptscsih_copy_info(struct info_str *info, char *fmt, ...)
1295 {
1296         va_list args;
1297         char buf[81];
1298         int len;
1299
1300         va_start(args, fmt);
1301         len = vsprintf(buf, fmt, args);
1302         va_end(args);
1303
1304         mptscsih_copy_mem_info(info, buf, len);
1305         return len;
1306 }
1307
1308 static int
1309 mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len)
1310 {
1311         struct info_str info;
1312
1313         info.buffer     = pbuf;
1314         info.length     = len;
1315         info.offset     = offset;
1316         info.pos        = 0;
1317
1318         mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name);
1319         mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1320         mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts);
1321         mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth);
1322
1323         return ((info.pos > info.offset) ? info.pos - info.offset : 0);
1324 }
1325
1326 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1327 /**
1328  *      mptscsih_proc_info - Return information about MPT adapter
1329  *      @host:   scsi host struct
1330  *      @buffer: if write, user data; if read, buffer for user
1331  *      @start: returns the buffer address
1332  *      @offset: if write, 0; if read, the current offset into the buffer from
1333  *               the previous read.
1334  *      @length: if write, return length;
1335  *      @func:   write = 1; read = 0
1336  *
1337  *      (linux scsi_host_template.info routine)
1338  */
1339 int
1340 mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
1341                         int length, int func)
1342 {
1343         MPT_SCSI_HOST   *hd = shost_priv(host);
1344         MPT_ADAPTER     *ioc = hd->ioc;
1345         int size = 0;
1346
1347         if (func) {
1348                 /*
1349                  * write is not supported
1350                  */
1351         } else {
1352                 if (start)
1353                         *start = buffer;
1354
1355                 size = mptscsih_host_info(ioc, buffer, offset, length);
1356         }
1357
1358         return size;
1359 }
1360
1361 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1362 #define ADD_INDEX_LOG(req_ent)  do { } while(0)
1363
1364 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1365 /**
1366  *      mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1367  *      @SCpnt: Pointer to scsi_cmnd structure
1368  *      @done: Pointer SCSI mid-layer IO completion function
1369  *
1370  *      (linux scsi_host_template.queuecommand routine)
1371  *      This is the primary SCSI IO start routine.  Create a MPI SCSIIORequest
1372  *      from a linux scsi_cmnd request and send it to the IOC.
1373  *
1374  *      Returns 0. (rtn value discarded by linux scsi mid-layer)
1375  */
1376 int
1377 mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1378 {
1379         MPT_SCSI_HOST           *hd;
1380         MPT_FRAME_HDR           *mf;
1381         SCSIIORequest_t         *pScsiReq;
1382         VirtDevice              *vdevice = SCpnt->device->hostdata;
1383         u32      datalen;
1384         u32      scsictl;
1385         u32      scsidir;
1386         u32      cmd_len;
1387         int      my_idx;
1388         int      ii;
1389         MPT_ADAPTER *ioc;
1390
1391         hd = shost_priv(SCpnt->device->host);
1392         ioc = hd->ioc;
1393         SCpnt->scsi_done = done;
1394
1395         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
1396                 ioc->name, SCpnt, done));
1397
1398         if (ioc->taskmgmt_quiesce_io) {
1399                 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT "qcmd: SCpnt=%p timeout + 60HZ\n",
1400                         ioc->name, SCpnt));
1401                 return SCSI_MLQUEUE_HOST_BUSY;
1402         }
1403
1404         /*
1405          *  Put together a MPT SCSI request...
1406          */
1407         if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1408                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1409                                 ioc->name));
1410                 return SCSI_MLQUEUE_HOST_BUSY;
1411         }
1412
1413         pScsiReq = (SCSIIORequest_t *) mf;
1414
1415         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1416
1417         ADD_INDEX_LOG(my_idx);
1418
1419         /*    TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1420          *    Seems we may receive a buffer (datalen>0) even when there
1421          *    will be no data transfer!  GRRRRR...
1422          */
1423         if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1424                 datalen = scsi_bufflen(SCpnt);
1425                 scsidir = MPI_SCSIIO_CONTROL_READ;      /* DATA IN  (host<--ioc<--dev) */
1426         } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1427                 datalen = scsi_bufflen(SCpnt);
1428                 scsidir = MPI_SCSIIO_CONTROL_WRITE;     /* DATA OUT (host-->ioc-->dev) */
1429         } else {
1430                 datalen = 0;
1431                 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1432         }
1433
1434         /* Default to untagged. Once a target structure has been allocated,
1435          * use the Inquiry data to determine if device supports tagged.
1436          */
1437         if (vdevice
1438             && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1439             && (SCpnt->device->tagged_supported)) {
1440                 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1441         } else {
1442                 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1443         }
1444
1445         /* Use the above information to set up the message frame
1446          */
1447         pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1448         pScsiReq->Bus = vdevice->vtarget->channel;
1449         pScsiReq->ChainOffset = 0;
1450         if (vdevice->vtarget->tflags &  MPT_TARGET_FLAGS_RAID_COMPONENT)
1451                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1452         else
1453                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1454         pScsiReq->CDBLength = SCpnt->cmd_len;
1455         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1456         pScsiReq->Reserved = 0;
1457         pScsiReq->MsgFlags = mpt_msg_flags(ioc);
1458         int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1459         pScsiReq->Control = cpu_to_le32(scsictl);
1460
1461         /*
1462          *  Write SCSI CDB into the message
1463          */
1464         cmd_len = SCpnt->cmd_len;
1465         for (ii=0; ii < cmd_len; ii++)
1466                 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1467
1468         for (ii=cmd_len; ii < 16; ii++)
1469                 pScsiReq->CDB[ii] = 0;
1470
1471         /* DataLength */
1472         pScsiReq->DataLength = cpu_to_le32(datalen);
1473
1474         /* SenseBuffer low address */
1475         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1476                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1477
1478         /* Now add the SG list
1479          * Always have a SGE even if null length.
1480          */
1481         if (datalen == 0) {
1482                 /* Add a NULL SGE */
1483                 ioc->add_sge((char *)&pScsiReq->SGL,
1484                         MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1485                         (dma_addr_t) -1);
1486         } else {
1487                 /* Add a 32 or 64 bit SGE */
1488                 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1489                         goto fail;
1490         }
1491
1492         SCpnt->host_scribble = (unsigned char *)mf;
1493         mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1494
1495         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1496         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1497                         ioc->name, SCpnt, mf, my_idx));
1498         DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1499         return 0;
1500
1501  fail:
1502         mptscsih_freeChainBuffers(ioc, my_idx);
1503         mpt_free_msg_frame(ioc, mf);
1504         return SCSI_MLQUEUE_HOST_BUSY;
1505 }
1506
1507 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1508 /*
1509  *      mptscsih_freeChainBuffers - Function to free chain buffers associated
1510  *      with a SCSI IO request
1511  *      @hd: Pointer to the MPT_SCSI_HOST instance
1512  *      @req_idx: Index of the SCSI IO request frame.
1513  *
1514  *      Called if SG chain buffer allocation fails and mptscsih callbacks.
1515  *      No return.
1516  */
1517 static void
1518 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1519 {
1520         MPT_FRAME_HDR *chain;
1521         unsigned long flags;
1522         int chain_idx;
1523         int next;
1524
1525         /* Get the first chain index and reset
1526          * tracker state.
1527          */
1528         chain_idx = ioc->ReqToChain[req_idx];
1529         ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1530
1531         while (chain_idx != MPT_HOST_NO_CHAIN) {
1532
1533                 /* Save the next chain buffer index */
1534                 next = ioc->ChainToChain[chain_idx];
1535
1536                 /* Free this chain buffer and reset
1537                  * tracker
1538                  */
1539                 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1540
1541                 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1542                                         + (chain_idx * ioc->req_sz));
1543
1544                 spin_lock_irqsave(&ioc->FreeQlock, flags);
1545                 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1546                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1547
1548                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1549                                 ioc->name, chain_idx));
1550
1551                 /* handle next */
1552                 chain_idx = next;
1553         }
1554         return;
1555 }
1556
1557 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1558 /*
1559  *      Reset Handling
1560  */
1561
1562 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1563 /**
1564  *      mptscsih_IssueTaskMgmt - Generic send Task Management function.
1565  *      @hd: Pointer to MPT_SCSI_HOST structure
1566  *      @type: Task Management type
1567  *      @channel: channel number for task management
1568  *      @id: Logical Target ID for reset (if appropriate)
1569  *      @lun: Logical Unit for reset (if appropriate)
1570  *      @ctx2abort: Context for the task to be aborted (if appropriate)
1571  *      @timeout: timeout for task management control
1572  *
1573  *      Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1574  *      or a non-interrupt thread.  In the former, must not call schedule().
1575  *
1576  *      Not all fields are meaningfull for all task types.
1577  *
1578  *      Returns 0 for SUCCESS, or FAILED.
1579  *
1580  **/
1581 int
1582 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun,
1583         int ctx2abort, ulong timeout)
1584 {
1585         MPT_FRAME_HDR   *mf;
1586         SCSITaskMgmt_t  *pScsiTm;
1587         int              ii;
1588         int              retval;
1589         MPT_ADAPTER     *ioc = hd->ioc;
1590         unsigned long    timeleft;
1591         u8               issue_hard_reset;
1592         u32              ioc_raw_state;
1593         unsigned long    time_count;
1594
1595         issue_hard_reset = 0;
1596         ioc_raw_state = mpt_GetIocState(ioc, 0);
1597
1598         if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1599                 printk(MYIOC_s_WARN_FMT
1600                         "TaskMgmt type=%x: IOC Not operational (0x%x)!\n",
1601                         ioc->name, type, ioc_raw_state);
1602                 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
1603                     ioc->name, __func__);
1604                 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1605                         printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset "
1606                             "FAILED!!\n", ioc->name);
1607                 return 0;
1608         }
1609
1610         if (ioc_raw_state & MPI_DOORBELL_ACTIVE) {
1611                 printk(MYIOC_s_WARN_FMT
1612                         "TaskMgmt type=%x: ioc_state: "
1613                         "DOORBELL_ACTIVE (0x%x)!\n",
1614                         ioc->name, type, ioc_raw_state);
1615                 return FAILED;
1616         }
1617
1618         mutex_lock(&ioc->taskmgmt_cmds.mutex);
1619         if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
1620                 mf = NULL;
1621                 retval = FAILED;
1622                 goto out;
1623         }
1624
1625         /* Return Fail to calling function if no message frames available.
1626          */
1627         if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1628                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1629                         "TaskMgmt no msg frames!!\n", ioc->name));
1630                 retval = FAILED;
1631                 mpt_clear_taskmgmt_in_progress_flag(ioc);
1632                 goto out;
1633         }
1634         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
1635                         ioc->name, mf));
1636
1637         /* Format the Request
1638          */
1639         pScsiTm = (SCSITaskMgmt_t *) mf;
1640         pScsiTm->TargetID = id;
1641         pScsiTm->Bus = channel;
1642         pScsiTm->ChainOffset = 0;
1643         pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1644
1645         pScsiTm->Reserved = 0;
1646         pScsiTm->TaskType = type;
1647         pScsiTm->Reserved1 = 0;
1648         pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1649                     ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1650
1651         int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1652
1653         for (ii=0; ii < 7; ii++)
1654                 pScsiTm->Reserved2[ii] = 0;
1655
1656         pScsiTm->TaskMsgContext = ctx2abort;
1657
1658         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) "
1659                 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort,
1660                 type, timeout));
1661
1662         DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1663
1664         INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1665         time_count = jiffies;
1666         if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1667             (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1668                 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1669         else {
1670                 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1671                         sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1672                 if (retval) {
1673                         dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
1674                                 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n",
1675                                 ioc->name, mf, retval));
1676                         mpt_free_msg_frame(ioc, mf);
1677                         mpt_clear_taskmgmt_in_progress_flag(ioc);
1678                         goto out;
1679                 }
1680         }
1681
1682         timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
1683                 timeout*HZ);
1684         if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
1685                 retval = FAILED;
1686                 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
1687                     "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf));
1688                 mpt_clear_taskmgmt_in_progress_flag(ioc);
1689                 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
1690                         goto out;
1691                 issue_hard_reset = 1;
1692                 goto out;
1693         }
1694
1695         retval = mptscsih_taskmgmt_reply(ioc, type,
1696             (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply);
1697
1698         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1699             "TaskMgmt completed (%d seconds)\n",
1700             ioc->name, jiffies_to_msecs(jiffies - time_count)/1000));
1701
1702  out:
1703
1704         CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
1705         if (issue_hard_reset) {
1706                 printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n",
1707                         ioc->name, __func__);
1708                 retval = mpt_HardResetHandler(ioc, CAN_SLEEP);
1709                 mpt_free_msg_frame(ioc, mf);
1710         }
1711
1712         retval = (retval == 0) ? 0 : FAILED;
1713         mutex_unlock(&ioc->taskmgmt_cmds.mutex);
1714         return retval;
1715 }
1716 EXPORT_SYMBOL(mptscsih_IssueTaskMgmt);
1717
1718 static int
1719 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1720 {
1721         switch (ioc->bus_type) {
1722         case FC:
1723                 return 40;
1724         case SAS:
1725         case SPI:
1726         default:
1727                 return 10;
1728         }
1729 }
1730
1731 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1732 /**
1733  *      mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1734  *      @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1735  *
1736  *      (linux scsi_host_template.eh_abort_handler routine)
1737  *
1738  *      Returns SUCCESS or FAILED.
1739  **/
1740 int
1741 mptscsih_abort(struct scsi_cmnd * SCpnt)
1742 {
1743         MPT_SCSI_HOST   *hd;
1744         MPT_FRAME_HDR   *mf;
1745         u32              ctx2abort;
1746         int              scpnt_idx;
1747         int              retval;
1748         VirtDevice       *vdevice;
1749         ulong            sn = SCpnt->serial_number;
1750         MPT_ADAPTER     *ioc;
1751
1752         /* If we can't locate our host adapter structure, return FAILED status.
1753          */
1754         if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1755                 SCpnt->result = DID_RESET << 16;
1756                 SCpnt->scsi_done(SCpnt);
1757                 printk(KERN_ERR MYNAM ": task abort: "
1758                     "can't locate host! (sc=%p)\n", SCpnt);
1759                 return FAILED;
1760         }
1761
1762         ioc = hd->ioc;
1763         printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1764                ioc->name, SCpnt);
1765         scsi_print_command(SCpnt);
1766
1767         vdevice = SCpnt->device->hostdata;
1768         if (!vdevice || !vdevice->vtarget) {
1769                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1770                     "task abort: device has been deleted (sc=%p)\n",
1771                     ioc->name, SCpnt));
1772                 SCpnt->result = DID_NO_CONNECT << 16;
1773                 SCpnt->scsi_done(SCpnt);
1774                 retval = 0;
1775                 goto out;
1776         }
1777
1778         /* Task aborts are not supported for hidden raid components.
1779          */
1780         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1781                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1782                     "task abort: hidden raid component (sc=%p)\n",
1783                     ioc->name, SCpnt));
1784                 SCpnt->result = DID_RESET << 16;
1785                 retval = FAILED;
1786                 goto out;
1787         }
1788
1789         /* Find this command
1790          */
1791         if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1792                 /* Cmd not found in ScsiLookup.
1793                  * Do OS callback.
1794                  */
1795                 SCpnt->result = DID_RESET << 16;
1796                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1797                    "Command not in the active list! (sc=%p)\n", ioc->name,
1798                    SCpnt));
1799                 retval = 0;
1800                 goto out;
1801         }
1802
1803         if (ioc->timeouts < -1)
1804                 ioc->timeouts++;
1805
1806         if (mpt_fwfault_debug)
1807                 mpt_halt_firmware(ioc);
1808
1809         /* Most important!  Set TaskMsgContext to SCpnt's MsgContext!
1810          * (the IO to be ABORT'd)
1811          *
1812          * NOTE: Since we do not byteswap MsgContext, we do not
1813          *       swap it here either.  It is an opaque cookie to
1814          *       the controller, so it does not matter. -DaveM
1815          */
1816         mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1817         ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1818         retval = mptscsih_IssueTaskMgmt(hd,
1819                          MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1820                          vdevice->vtarget->channel,
1821                          vdevice->vtarget->id, vdevice->lun,
1822                          ctx2abort, mptscsih_get_tm_timeout(ioc));
1823
1824         if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx &&
1825             SCpnt->serial_number == sn) {
1826                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1827                     "task abort: command still in active list! (sc=%p)\n",
1828                     ioc->name, SCpnt));
1829                 retval = FAILED;
1830         } else {
1831                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1832                     "task abort: command cleared from active list! (sc=%p)\n",
1833                     ioc->name, SCpnt));
1834                 retval = SUCCESS;
1835         }
1836
1837  out:
1838         printk(MYIOC_s_INFO_FMT "task abort: %s (sc=%p)\n",
1839             ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), SCpnt);
1840
1841         return retval;
1842 }
1843
1844 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1845 /**
1846  *      mptscsih_dev_reset - Perform a SCSI TARGET_RESET!  new_eh variant
1847  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1848  *
1849  *      (linux scsi_host_template.eh_dev_reset_handler routine)
1850  *
1851  *      Returns SUCCESS or FAILED.
1852  **/
1853 int
1854 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1855 {
1856         MPT_SCSI_HOST   *hd;
1857         int              retval;
1858         VirtDevice       *vdevice;
1859         MPT_ADAPTER     *ioc;
1860
1861         /* If we can't locate our host adapter structure, return FAILED status.
1862          */
1863         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1864                 printk(KERN_ERR MYNAM ": target reset: "
1865                    "Can't locate host! (sc=%p)\n", SCpnt);
1866                 return FAILED;
1867         }
1868
1869         ioc = hd->ioc;
1870         printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1871                ioc->name, SCpnt);
1872         scsi_print_command(SCpnt);
1873
1874         vdevice = SCpnt->device->hostdata;
1875         if (!vdevice || !vdevice->vtarget) {
1876                 retval = SUCCESS;
1877                 goto out;
1878         }
1879
1880         /* Target reset to hidden raid component is not supported
1881          */
1882         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1883                 retval = FAILED;
1884                 goto out;
1885         }
1886
1887         retval = mptscsih_IssueTaskMgmt(hd,
1888                                 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1889                                 vdevice->vtarget->channel,
1890                                 vdevice->vtarget->id, 0, 0,
1891                                 mptscsih_get_tm_timeout(ioc));
1892
1893  out:
1894         printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1895             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1896
1897         if (retval == 0)
1898                 return SUCCESS;
1899         else
1900                 return FAILED;
1901 }
1902
1903
1904 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1905 /**
1906  *      mptscsih_bus_reset - Perform a SCSI BUS_RESET!  new_eh variant
1907  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1908  *
1909  *      (linux scsi_host_template.eh_bus_reset_handler routine)
1910  *
1911  *      Returns SUCCESS or FAILED.
1912  **/
1913 int
1914 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1915 {
1916         MPT_SCSI_HOST   *hd;
1917         int              retval;
1918         VirtDevice       *vdevice;
1919         MPT_ADAPTER     *ioc;
1920
1921         /* If we can't locate our host adapter structure, return FAILED status.
1922          */
1923         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1924                 printk(KERN_ERR MYNAM ": bus reset: "
1925                    "Can't locate host! (sc=%p)\n", SCpnt);
1926                 return FAILED;
1927         }
1928
1929         ioc = hd->ioc;
1930         printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1931                ioc->name, SCpnt);
1932         scsi_print_command(SCpnt);
1933
1934         if (ioc->timeouts < -1)
1935                 ioc->timeouts++;
1936
1937         vdevice = SCpnt->device->hostdata;
1938         if (!vdevice || !vdevice->vtarget)
1939                 return SUCCESS;
1940         retval = mptscsih_IssueTaskMgmt(hd,
1941                                         MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1942                                         vdevice->vtarget->channel, 0, 0, 0,
1943                                         mptscsih_get_tm_timeout(ioc));
1944
1945         printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1946             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1947
1948         if (retval == 0)
1949                 return SUCCESS;
1950         else
1951                 return FAILED;
1952 }
1953
1954 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1955 /**
1956  *      mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1957  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1958  *
1959  *      (linux scsi_host_template.eh_host_reset_handler routine)
1960  *
1961  *      Returns SUCCESS or FAILED.
1962  */
1963 int
1964 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
1965 {
1966         MPT_SCSI_HOST *  hd;
1967         int              status = SUCCESS;
1968         MPT_ADAPTER     *ioc;
1969         int             retval;
1970
1971         /*  If we can't locate the host to reset, then we failed. */
1972         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1973                 printk(KERN_ERR MYNAM ": host reset: "
1974                     "Can't locate host! (sc=%p)\n", SCpnt);
1975                 return FAILED;
1976         }
1977
1978         /* make sure we have no outstanding commands at this stage */
1979         mptscsih_flush_running_cmds(hd);
1980
1981         ioc = hd->ioc;
1982         printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
1983             ioc->name, SCpnt);
1984
1985         /*  If our attempts to reset the host failed, then return a failed
1986          *  status.  The host will be taken off line by the SCSI mid-layer.
1987          */
1988     retval = mpt_HardResetHandler(ioc, CAN_SLEEP);
1989         if (retval < 0)
1990                 status = FAILED;
1991         else
1992                 status = SUCCESS;
1993
1994         printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
1995             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1996
1997         return status;
1998 }
1999
2000 static int
2001 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
2002         SCSITaskMgmtReply_t *pScsiTmReply)
2003 {
2004         u16                      iocstatus;
2005         u32                      termination_count;
2006         int                      retval;
2007
2008         if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
2009                 retval = FAILED;
2010                 goto out;
2011         }
2012
2013         DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
2014
2015         iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2016         termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
2017
2018         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2019             "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n"
2020             "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n"
2021             "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus,
2022             pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus),
2023             le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode,
2024             termination_count));
2025
2026         if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
2027             pScsiTmReply->ResponseCode)
2028                 mptscsih_taskmgmt_response_code(ioc,
2029                     pScsiTmReply->ResponseCode);
2030
2031         if (iocstatus == MPI_IOCSTATUS_SUCCESS) {
2032                 retval = 0;
2033                 goto out;
2034         }
2035
2036         retval = FAILED;
2037         if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
2038                 if (termination_count == 1)
2039                         retval = 0;
2040                 goto out;
2041         }
2042
2043         if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
2044            iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
2045                 retval = 0;
2046
2047  out:
2048         return retval;
2049 }
2050
2051 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2052 void
2053 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2054 {
2055         char *desc;
2056
2057         switch (response_code) {
2058         case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2059                 desc = "The task completed.";
2060                 break;
2061         case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2062                 desc = "The IOC received an invalid frame status.";
2063                 break;
2064         case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2065                 desc = "The task type is not supported.";
2066                 break;
2067         case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2068                 desc = "The requested task failed.";
2069                 break;
2070         case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2071                 desc = "The task completed successfully.";
2072                 break;
2073         case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2074                 desc = "The LUN request is invalid.";
2075                 break;
2076         case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2077                 desc = "The task is in the IOC queue and has not been sent to target.";
2078                 break;
2079         default:
2080                 desc = "unknown";
2081                 break;
2082         }
2083         printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2084                 ioc->name, response_code, desc);
2085 }
2086 EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
2087
2088 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2089 /**
2090  *      mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2091  *      @ioc: Pointer to MPT_ADAPTER structure
2092  *      @mf: Pointer to SCSI task mgmt request frame
2093  *      @mr: Pointer to SCSI task mgmt reply frame
2094  *
2095  *      This routine is called from mptbase.c::mpt_interrupt() at the completion
2096  *      of any SCSI task management request.
2097  *      This routine is registered with the MPT (base) driver at driver
2098  *      load/init time via the mpt_register() API call.
2099  *
2100  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2101  **/
2102 int
2103 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf,
2104         MPT_FRAME_HDR *mr)
2105 {
2106         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2107                 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr));
2108
2109         ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2110
2111         if (!mr)
2112                 goto out;
2113
2114         ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2115         memcpy(ioc->taskmgmt_cmds.reply, mr,
2116             min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength));
2117  out:
2118         if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) {
2119                 mpt_clear_taskmgmt_in_progress_flag(ioc);
2120                 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2121                 complete(&ioc->taskmgmt_cmds.done);
2122                 return 1;
2123         }
2124         return 0;
2125 }
2126
2127 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2128 /*
2129  *      This is anyones guess quite frankly.
2130  */
2131 int
2132 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2133                 sector_t capacity, int geom[])
2134 {
2135         int             heads;
2136         int             sectors;
2137         sector_t        cylinders;
2138         ulong           dummy;
2139
2140         heads = 64;
2141         sectors = 32;
2142
2143         dummy = heads * sectors;
2144         cylinders = capacity;
2145         sector_div(cylinders,dummy);
2146
2147         /*
2148          * Handle extended translation size for logical drives
2149          * > 1Gb
2150          */
2151         if ((ulong)capacity >= 0x200000) {
2152                 heads = 255;
2153                 sectors = 63;
2154                 dummy = heads * sectors;
2155                 cylinders = capacity;
2156                 sector_div(cylinders,dummy);
2157         }
2158
2159         /* return result */
2160         geom[0] = heads;
2161         geom[1] = sectors;
2162         geom[2] = cylinders;
2163
2164         return 0;
2165 }
2166
2167 /* Search IOC page 3 to determine if this is hidden physical disk
2168  *
2169  */
2170 int
2171 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2172 {
2173         struct inactive_raid_component_info *component_info;
2174         int i, j;
2175         RaidPhysDiskPage1_t *phys_disk;
2176         int rc = 0;
2177         int num_paths;
2178
2179         if (!ioc->raid_data.pIocPg3)
2180                 goto out;
2181         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2182                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2183                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2184                         rc = 1;
2185                         goto out;
2186                 }
2187         }
2188
2189         if (ioc->bus_type != SAS)
2190                 goto out;
2191
2192         /*
2193          * Check if dual path
2194          */
2195         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2196                 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2197                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2198                 if (num_paths < 2)
2199                         continue;
2200                 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2201                    (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2202                 if (!phys_disk)
2203                         continue;
2204                 if ((mpt_raid_phys_disk_pg1(ioc,
2205                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2206                     phys_disk))) {
2207                         kfree(phys_disk);
2208                         continue;
2209                 }
2210                 for (j = 0; j < num_paths; j++) {
2211                         if ((phys_disk->Path[j].Flags &
2212                             MPI_RAID_PHYSDISK1_FLAG_INVALID))
2213                                 continue;
2214                         if ((phys_disk->Path[j].Flags &
2215                             MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2216                                 continue;
2217                         if ((id == phys_disk->Path[j].PhysDiskID) &&
2218                             (channel == phys_disk->Path[j].PhysDiskBus)) {
2219                                 rc = 1;
2220                                 kfree(phys_disk);
2221                                 goto out;
2222                         }
2223                 }
2224                 kfree(phys_disk);
2225         }
2226
2227
2228         /*
2229          * Check inactive list for matching phys disks
2230          */
2231         if (list_empty(&ioc->raid_data.inactive_list))
2232                 goto out;
2233
2234         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2235         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2236             list) {
2237                 if ((component_info->d.PhysDiskID == id) &&
2238                     (component_info->d.PhysDiskBus == channel))
2239                         rc = 1;
2240         }
2241         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2242
2243  out:
2244         return rc;
2245 }
2246 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2247
2248 u8
2249 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2250 {
2251         struct inactive_raid_component_info *component_info;
2252         int i, j;
2253         RaidPhysDiskPage1_t *phys_disk;
2254         int rc = -ENXIO;
2255         int num_paths;
2256
2257         if (!ioc->raid_data.pIocPg3)
2258                 goto out;
2259         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2260                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2261                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2262                         rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2263                         goto out;
2264                 }
2265         }
2266
2267         if (ioc->bus_type != SAS)
2268                 goto out;
2269
2270         /*
2271          * Check if dual path
2272          */
2273         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2274                 num_paths = mpt_raid_phys_disk_get_num_paths(ioc,
2275                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum);
2276                 if (num_paths < 2)
2277                         continue;
2278                 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) +
2279                    (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL);
2280                 if (!phys_disk)
2281                         continue;
2282                 if ((mpt_raid_phys_disk_pg1(ioc,
2283                     ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum,
2284                     phys_disk))) {
2285                         kfree(phys_disk);
2286                         continue;
2287                 }
2288                 for (j = 0; j < num_paths; j++) {
2289                         if ((phys_disk->Path[j].Flags &
2290                             MPI_RAID_PHYSDISK1_FLAG_INVALID))
2291                                 continue;
2292                         if ((phys_disk->Path[j].Flags &
2293                             MPI_RAID_PHYSDISK1_FLAG_BROKEN))
2294                                 continue;
2295                         if ((id == phys_disk->Path[j].PhysDiskID) &&
2296                             (channel == phys_disk->Path[j].PhysDiskBus)) {
2297                                 rc = phys_disk->PhysDiskNum;
2298                                 kfree(phys_disk);
2299                                 goto out;
2300                         }
2301                 }
2302                 kfree(phys_disk);
2303         }
2304
2305         /*
2306          * Check inactive list for matching phys disks
2307          */
2308         if (list_empty(&ioc->raid_data.inactive_list))
2309                 goto out;
2310
2311         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2312         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2313             list) {
2314                 if ((component_info->d.PhysDiskID == id) &&
2315                     (component_info->d.PhysDiskBus == channel))
2316                         rc = component_info->d.PhysDiskNum;
2317         }
2318         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2319
2320  out:
2321         return rc;
2322 }
2323 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2324
2325 /*
2326  *      OS entry point to allow for host driver to free allocated memory
2327  *      Called if no device present or device being unloaded
2328  */
2329 void
2330 mptscsih_slave_destroy(struct scsi_device *sdev)
2331 {
2332         struct Scsi_Host        *host = sdev->host;
2333         MPT_SCSI_HOST           *hd = shost_priv(host);
2334         VirtTarget              *vtarget;
2335         VirtDevice              *vdevice;
2336         struct scsi_target      *starget;
2337
2338         starget = scsi_target(sdev);
2339         vtarget = starget->hostdata;
2340         vdevice = sdev->hostdata;
2341
2342         mptscsih_search_running_cmds(hd, vdevice);
2343         vtarget->num_luns--;
2344         mptscsih_synchronize_cache(hd, vdevice);
2345         kfree(vdevice);
2346         sdev->hostdata = NULL;
2347 }
2348
2349 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2350 /*
2351  *      mptscsih_change_queue_depth - This function will set a devices queue depth
2352  *      @sdev: per scsi_device pointer
2353  *      @qdepth: requested queue depth
2354  *
2355  *      Adding support for new 'change_queue_depth' api.
2356 */
2357 int
2358 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
2359 {
2360         MPT_SCSI_HOST           *hd = shost_priv(sdev->host);
2361         VirtTarget              *vtarget;
2362         struct scsi_target      *starget;
2363         int                     max_depth;
2364         int                     tagged;
2365         MPT_ADAPTER             *ioc = hd->ioc;
2366
2367         starget = scsi_target(sdev);
2368         vtarget = starget->hostdata;
2369
2370         if (ioc->bus_type == SPI) {
2371                 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2372                         max_depth = 1;
2373                 else if (sdev->type == TYPE_DISK &&
2374                          vtarget->minSyncFactor <= MPT_ULTRA160)
2375                         max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2376                 else
2377                         max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2378         } else
2379                  max_depth = ioc->sh->can_queue;
2380
2381         if (!sdev->tagged_supported)
2382                 max_depth = 1;
2383
2384         if (qdepth > max_depth)
2385                 qdepth = max_depth;
2386         if (qdepth == 1)
2387                 tagged = 0;
2388         else
2389                 tagged = MSG_SIMPLE_TAG;
2390
2391         scsi_adjust_queue_depth(sdev, tagged, qdepth);
2392         return sdev->queue_depth;
2393 }
2394
2395 /*
2396  *      OS entry point to adjust the queue_depths on a per-device basis.
2397  *      Called once per device the bus scan. Use it to force the queue_depth
2398  *      member to 1 if a device does not support Q tags.
2399  *      Return non-zero if fails.
2400  */
2401 int
2402 mptscsih_slave_configure(struct scsi_device *sdev)
2403 {
2404         struct Scsi_Host        *sh = sdev->host;
2405         VirtTarget              *vtarget;
2406         VirtDevice              *vdevice;
2407         struct scsi_target      *starget;
2408         MPT_SCSI_HOST           *hd = shost_priv(sh);
2409         MPT_ADAPTER             *ioc = hd->ioc;
2410
2411         starget = scsi_target(sdev);
2412         vtarget = starget->hostdata;
2413         vdevice = sdev->hostdata;
2414
2415         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2416                 "device @ %p, channel=%d, id=%d, lun=%d\n",
2417                 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2418         if (ioc->bus_type == SPI)
2419                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2420                     "sdtr %d wdtr %d ppr %d inq length=%d\n",
2421                     ioc->name, sdev->sdtr, sdev->wdtr,
2422                     sdev->ppr, sdev->inquiry_len));
2423
2424         vdevice->configured_lun = 1;
2425
2426         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2427                 "Queue depth=%d, tflags=%x\n",
2428                 ioc->name, sdev->queue_depth, vtarget->tflags));
2429
2430         if (ioc->bus_type == SPI)
2431                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2432                     "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2433                     ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2434                     vtarget->minSyncFactor));
2435
2436         mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
2437         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2438                 "tagged %d, simple %d, ordered %d\n",
2439                 ioc->name,sdev->tagged_supported, sdev->simple_tags,
2440                 sdev->ordered_tags));
2441
2442         return 0;
2443 }
2444
2445 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2446 /*
2447  *  Private routines...
2448  */
2449
2450 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2451 /* Utility function to copy sense data from the scsi_cmnd buffer
2452  * to the FC and SCSI target structures.
2453  *
2454  */
2455 static void
2456 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2457 {
2458         VirtDevice      *vdevice;
2459         SCSIIORequest_t *pReq;
2460         u32              sense_count = le32_to_cpu(pScsiReply->SenseCount);
2461         MPT_ADAPTER     *ioc = hd->ioc;
2462
2463         /* Get target structure
2464          */
2465         pReq = (SCSIIORequest_t *) mf;
2466         vdevice = sc->device->hostdata;
2467
2468         if (sense_count) {
2469                 u8 *sense_data;
2470                 int req_index;
2471
2472                 /* Copy the sense received into the scsi command block. */
2473                 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2474                 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2475                 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2476
2477                 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2478                  */
2479                 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2480                         if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2481                                 int idx;
2482
2483                                 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2484                                 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2485                                 ioc->events[idx].eventContext = ioc->eventContext;
2486
2487                                 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2488                                         (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2489                                         (sc->device->channel << 8) | sc->device->id;
2490
2491                                 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2492
2493                                 ioc->eventContext++;
2494                                 if (ioc->pcidev->vendor ==
2495                                     PCI_VENDOR_ID_IBM) {
2496                                         mptscsih_issue_sep_command(ioc,
2497                                             vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2498                                         vdevice->vtarget->tflags |=
2499                                             MPT_TARGET_FLAGS_LED_ON;
2500                                 }
2501                         }
2502                 }
2503         } else {
2504                 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2505                                 ioc->name));
2506         }
2507 }
2508
2509 /**
2510  * mptscsih_get_scsi_lookup - retrieves scmd entry
2511  * @ioc: Pointer to MPT_ADAPTER structure
2512  * @i: index into the array
2513  *
2514  * Returns the scsi_cmd pointer
2515  */
2516 struct scsi_cmnd *
2517 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2518 {
2519         unsigned long   flags;
2520         struct scsi_cmnd *scmd;
2521
2522         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2523         scmd = ioc->ScsiLookup[i];
2524         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2525
2526         return scmd;
2527 }
2528 EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
2529
2530 /**
2531  * mptscsih_getclear_scsi_lookup -  retrieves and clears scmd entry from ScsiLookup[] array list
2532  * @ioc: Pointer to MPT_ADAPTER structure
2533  * @i: index into the array
2534  *
2535  * Returns the scsi_cmd pointer
2536  *
2537  **/
2538 static struct scsi_cmnd *
2539 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2540 {
2541         unsigned long   flags;
2542         struct scsi_cmnd *scmd;
2543
2544         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2545         scmd = ioc->ScsiLookup[i];
2546         ioc->ScsiLookup[i] = NULL;
2547         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2548
2549         return scmd;
2550 }
2551
2552 /**
2553  * mptscsih_set_scsi_lookup
2554  *
2555  * writes a scmd entry into the ScsiLookup[] array list
2556  *
2557  * @ioc: Pointer to MPT_ADAPTER structure
2558  * @i: index into the array
2559  * @scmd: scsi_cmnd pointer
2560  *
2561  **/
2562 static void
2563 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2564 {
2565         unsigned long   flags;
2566
2567         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2568         ioc->ScsiLookup[i] = scmd;
2569         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2570 }
2571
2572 /**
2573  * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2574  * @ioc: Pointer to MPT_ADAPTER structure
2575  * @sc: scsi_cmnd pointer
2576  */
2577 static int
2578 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2579 {
2580         unsigned long   flags;
2581         int i, index=-1;
2582
2583         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2584         for (i = 0; i < ioc->req_depth; i++) {
2585                 if (ioc->ScsiLookup[i] == sc) {
2586                         index = i;
2587                         goto out;
2588                 }
2589         }
2590
2591  out:
2592         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2593         return index;
2594 }
2595
2596 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2597 int
2598 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2599 {
2600         MPT_SCSI_HOST   *hd;
2601
2602         if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2603                 return 0;
2604
2605         hd = shost_priv(ioc->sh);
2606         switch (reset_phase) {
2607         case MPT_IOC_SETUP_RESET:
2608                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2609                     "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
2610                 break;
2611         case MPT_IOC_PRE_RESET:
2612                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2613                     "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
2614                 mptscsih_flush_running_cmds(hd);
2615                 break;
2616         case MPT_IOC_POST_RESET:
2617                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2618                     "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__));
2619                 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) {
2620                         ioc->internal_cmds.status |=
2621                                 MPT_MGMT_STATUS_DID_IOCRESET;
2622                         complete(&ioc->internal_cmds.done);
2623                 }
2624                 break;
2625         default:
2626                 break;
2627         }
2628         return 1;               /* currently means nothing really */
2629 }
2630
2631 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2632 int
2633 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2634 {
2635         u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2636
2637         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2638                 "MPT event (=%02Xh) routed to SCSI host driver!\n",
2639                 ioc->name, event));
2640
2641         if ((event == MPI_EVENT_IOC_BUS_RESET ||
2642             event == MPI_EVENT_EXT_BUS_RESET) &&
2643             (ioc->bus_type == SPI) && (ioc->soft_resets < -1))
2644                         ioc->soft_resets++;
2645
2646         return 1;               /* currently means nothing really */
2647 }
2648
2649 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2650 /*
2651  *  Bus Scan and Domain Validation functionality ...
2652  */
2653
2654 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2655 /*
2656  *      mptscsih_scandv_complete - Scan and DV callback routine registered
2657  *      to Fustion MPT (base) driver.
2658  *
2659  *      @ioc: Pointer to MPT_ADAPTER structure
2660  *      @mf: Pointer to original MPT request frame
2661  *      @mr: Pointer to MPT reply frame (NULL if TurboReply)
2662  *
2663  *      This routine is called from mpt.c::mpt_interrupt() at the completion
2664  *      of any SCSI IO request.
2665  *      This routine is registered with the Fusion MPT (base) driver at driver
2666  *      load/init time via the mpt_register() API call.
2667  *
2668  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2669  *
2670  *      Remark: Sets a completion code and (possibly) saves sense data
2671  *      in the IOC member localReply structure.
2672  *      Used ONLY for DV and other internal commands.
2673  */
2674 int
2675 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2676                                 MPT_FRAME_HDR *reply)
2677 {
2678         SCSIIORequest_t *pReq;
2679         SCSIIOReply_t   *pReply;
2680         u8               cmd;
2681         u16              req_idx;
2682         u8      *sense_data;
2683         int              sz;
2684
2685         ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD;
2686         ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD;
2687         if (!reply)
2688                 goto out;
2689
2690         pReply = (SCSIIOReply_t *) reply;
2691         pReq = (SCSIIORequest_t *) req;
2692         ioc->internal_cmds.completion_code =
2693             mptscsih_get_completion_code(ioc, req, reply);
2694         ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID;
2695         memcpy(ioc->internal_cmds.reply, reply,
2696             min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength));
2697         cmd = reply->u.hdr.Function;
2698         if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) ||
2699             (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) &&
2700             (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
2701                 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx);
2702                 sense_data = ((u8 *)ioc->sense_buf_pool +
2703                     (req_idx * MPT_SENSE_BUFFER_ALLOC));
2704                 sz = min_t(int, pReq->SenseBufferLength,
2705                     MPT_SENSE_BUFFER_ALLOC);
2706                 memcpy(ioc->internal_cmds.sense, sense_data, sz);
2707         }
2708  out:
2709         if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING))
2710                 return 0;
2711         ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING;
2712         complete(&ioc->internal_cmds.done);
2713         return 1;
2714 }
2715
2716
2717 /**
2718  *      mptscsih_get_completion_code -
2719  *      @ioc: Pointer to MPT_ADAPTER structure
2720  *      @req: Pointer to original MPT request frame
2721  *      @reply: Pointer to MPT reply frame (NULL if TurboReply)
2722  *
2723  **/
2724 static int
2725 mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
2726                                 MPT_FRAME_HDR *reply)
2727 {
2728         SCSIIOReply_t   *pReply;
2729         MpiRaidActionReply_t *pr;
2730         u8               scsi_status;
2731         u16              status;
2732         int              completion_code;
2733
2734         pReply = (SCSIIOReply_t *)reply;
2735         status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2736         scsi_status = pReply->SCSIStatus;
2737
2738         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2739             "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh,"
2740             "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState,
2741             scsi_status, le32_to_cpu(pReply->IOCLogInfo)));
2742
2743         switch (status) {
2744
2745         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
2746                 completion_code = MPT_SCANDV_SELECTION_TIMEOUT;
2747                 break;
2748
2749         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
2750         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
2751         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
2752         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
2753                 completion_code = MPT_SCANDV_DID_RESET;
2754                 break;
2755
2756         case MPI_IOCSTATUS_BUSY:
2757         case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
2758                 completion_code = MPT_SCANDV_BUSY;
2759                 break;
2760
2761         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
2762         case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
2763         case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
2764                 if (pReply->Function == MPI_FUNCTION_CONFIG) {
2765                         completion_code = MPT_SCANDV_GOOD;
2766                 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2767                         pr = (MpiRaidActionReply_t *)reply;
2768                         if (le16_to_cpu(pr->ActionStatus) ==
2769                                 MPI_RAID_ACTION_ASTATUS_SUCCESS)
2770                                 completion_code = MPT_SCANDV_GOOD;
2771                         else
2772                                 completion_code = MPT_SCANDV_SOME_ERROR;
2773                 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)
2774                         completion_code = MPT_SCANDV_SENSE;
2775                 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2776                         if (req->u.scsireq.CDB[0] == INQUIRY)
2777                                 completion_code = MPT_SCANDV_ISSUE_SENSE;
2778                         else
2779                                 completion_code = MPT_SCANDV_DID_RESET;
2780                 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2781                         completion_code = MPT_SCANDV_DID_RESET;
2782                 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2783                         completion_code = MPT_SCANDV_DID_RESET;
2784                 else if (scsi_status == MPI_SCSI_STATUS_BUSY)
2785                         completion_code = MPT_SCANDV_BUSY;
2786                 else
2787                         completion_code = MPT_SCANDV_GOOD;
2788                 break;
2789
2790         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
2791                 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2792                         completion_code = MPT_SCANDV_DID_RESET;
2793                 else
2794                         completion_code = MPT_SCANDV_SOME_ERROR;
2795                 break;
2796         default:
2797                 completion_code = MPT_SCANDV_SOME_ERROR;
2798                 break;
2799
2800         }       /* switch(status) */
2801
2802         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2803             "  completionCode set to %08xh\n", ioc->name, completion_code));
2804         return completion_code;
2805 }
2806
2807 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2808 /**
2809  *      mptscsih_do_cmd - Do internal command.
2810  *      @hd: MPT_SCSI_HOST pointer
2811  *      @io: INTERNAL_CMD pointer.
2812  *
2813  *      Issue the specified internally generated command and do command
2814  *      specific cleanup. For bus scan / DV only.
2815  *      NOTES: If command is Inquiry and status is good,
2816  *      initialize a target structure, save the data
2817  *
2818  *      Remark: Single threaded access only.
2819  *
2820  *      Return:
2821  *              < 0 if an illegal command or no resources
2822  *
2823  *                 0 if good
2824  *
2825  *               > 0 if command complete but some type of completion error.
2826  */
2827 static int
2828 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2829 {
2830         MPT_FRAME_HDR   *mf;
2831         SCSIIORequest_t *pScsiReq;
2832         int              my_idx, ii, dir;
2833         int              timeout;
2834         char             cmdLen;
2835         char             CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2836         u8               cmd = io->cmd;
2837         MPT_ADAPTER *ioc = hd->ioc;
2838         int              ret = 0;
2839         unsigned long    timeleft;
2840         unsigned long    flags;
2841
2842         /* don't send internal command during diag reset */
2843         spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
2844         if (ioc->ioc_reset_in_progress) {
2845                 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2846                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2847                         "%s: busy with host reset\n", ioc->name, __func__));
2848                 return MPT_SCANDV_BUSY;
2849         }
2850         spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
2851
2852         mutex_lock(&ioc->internal_cmds.mutex);
2853
2854         /* Set command specific information
2855          */
2856         switch (cmd) {
2857         case INQUIRY:
2858                 cmdLen = 6;
2859                 dir = MPI_SCSIIO_CONTROL_READ;
2860                 CDB[0] = cmd;
2861                 CDB[4] = io->size;
2862                 timeout = 10;
2863                 break;
2864
2865         case TEST_UNIT_READY:
2866                 cmdLen = 6;
2867                 dir = MPI_SCSIIO_CONTROL_READ;
2868                 timeout = 10;
2869                 break;
2870
2871         case START_STOP:
2872                 cmdLen = 6;
2873                 dir = MPI_SCSIIO_CONTROL_READ;
2874                 CDB[0] = cmd;
2875                 CDB[4] = 1;     /*Spin up the disk */
2876                 timeout = 15;
2877                 break;
2878
2879         case REQUEST_SENSE:
2880                 cmdLen = 6;
2881                 CDB[0] = cmd;
2882                 CDB[4] = io->size;
2883                 dir = MPI_SCSIIO_CONTROL_READ;
2884                 timeout = 10;
2885                 break;
2886
2887         case READ_BUFFER:
2888                 cmdLen = 10;
2889                 dir = MPI_SCSIIO_CONTROL_READ;
2890                 CDB[0] = cmd;
2891                 if (io->flags & MPT_ICFLAG_ECHO) {
2892                         CDB[1] = 0x0A;
2893                 } else {
2894                         CDB[1] = 0x02;
2895                 }
2896
2897                 if (io->flags & MPT_ICFLAG_BUF_CAP) {
2898                         CDB[1] |= 0x01;
2899                 }
2900                 CDB[6] = (io->size >> 16) & 0xFF;
2901                 CDB[7] = (io->size >>  8) & 0xFF;
2902                 CDB[8] = io->size & 0xFF;
2903                 timeout = 10;
2904                 break;
2905
2906         case WRITE_BUFFER:
2907                 cmdLen = 10;
2908                 dir = MPI_SCSIIO_CONTROL_WRITE;
2909                 CDB[0] = cmd;
2910                 if (io->flags & MPT_ICFLAG_ECHO) {
2911                         CDB[1] = 0x0A;
2912                 } else {
2913                         CDB[1] = 0x02;
2914                 }
2915                 CDB[6] = (io->size >> 16) & 0xFF;
2916                 CDB[7] = (io->size >>  8) & 0xFF;
2917                 CDB[8] = io->size & 0xFF;
2918                 timeout = 10;
2919                 break;
2920
2921         case RESERVE:
2922                 cmdLen = 6;
2923                 dir = MPI_SCSIIO_CONTROL_READ;
2924                 CDB[0] = cmd;
2925                 timeout = 10;
2926                 break;
2927
2928         case RELEASE:
2929                 cmdLen = 6;
2930                 dir = MPI_SCSIIO_CONTROL_READ;
2931                 CDB[0] = cmd;
2932                 timeout = 10;
2933                 break;
2934
2935         case SYNCHRONIZE_CACHE:
2936                 cmdLen = 10;
2937                 dir = MPI_SCSIIO_CONTROL_READ;
2938                 CDB[0] = cmd;
2939 //              CDB[1] = 0x02;  /* set immediate bit */
2940                 timeout = 10;
2941                 break;
2942
2943         default:
2944                 /* Error Case */
2945                 ret = -EFAULT;
2946                 goto out;
2947         }
2948
2949         /* Get and Populate a free Frame
2950          * MsgContext set in mpt_get_msg_frame call
2951          */
2952         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
2953                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n",
2954                     ioc->name, __func__));
2955                 ret = MPT_SCANDV_BUSY;
2956                 goto out;
2957         }
2958
2959         pScsiReq = (SCSIIORequest_t *) mf;
2960
2961         /* Get the request index */
2962         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2963         ADD_INDEX_LOG(my_idx); /* for debug */
2964
2965         if (io->flags & MPT_ICFLAG_PHYS_DISK) {
2966                 pScsiReq->TargetID = io->physDiskNum;
2967                 pScsiReq->Bus = 0;
2968                 pScsiReq->ChainOffset = 0;
2969                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2970         } else {
2971                 pScsiReq->TargetID = io->id;
2972                 pScsiReq->Bus = io->channel;
2973                 pScsiReq->ChainOffset = 0;
2974                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2975         }
2976
2977         pScsiReq->CDBLength = cmdLen;
2978         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
2979
2980         pScsiReq->Reserved = 0;
2981
2982         pScsiReq->MsgFlags = mpt_msg_flags(ioc);
2983         /* MsgContext set in mpt_get_msg_fram call  */
2984
2985         int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
2986
2987         if (io->flags & MPT_ICFLAG_TAGGED_CMD)
2988                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
2989         else
2990                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2991
2992         if (cmd == REQUEST_SENSE) {
2993                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
2994                 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2995                     "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd));
2996         }
2997
2998         for (ii = 0; ii < 16; ii++)
2999                 pScsiReq->CDB[ii] = CDB[ii];
3000
3001         pScsiReq->DataLength = cpu_to_le32(io->size);
3002         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
3003                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
3004
3005         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
3006             "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%d\n",
3007             ioc->name, __func__, cmd, io->channel, io->id, io->lun));
3008
3009         if (dir == MPI_SCSIIO_CONTROL_READ)
3010                 ioc->add_sge((char *) &pScsiReq->SGL,
3011                     MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma);
3012         else
3013                 ioc->add_sge((char *) &pScsiReq->SGL,
3014                     MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma);
3015
3016         INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status)
3017         mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
3018         timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done,
3019             timeout*HZ);
3020         if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
3021                 ret = MPT_SCANDV_DID_RESET;
3022                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
3023                     "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__,
3024                     cmd));
3025                 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
3026                         mpt_free_msg_frame(ioc, mf);
3027                         goto out;
3028                 }
3029                 if (!timeleft) {
3030                         printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n",
3031                             ioc->name, __func__);
3032                         mpt_HardResetHandler(ioc, CAN_SLEEP);
3033                         mpt_free_msg_frame(ioc, mf);
3034                 }
3035                 goto out;
3036         }
3037
3038         ret = ioc->internal_cmds.completion_code;
3039         devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n",
3040                         ioc->name, __func__, ret));
3041
3042  out:
3043         CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
3044         mutex_unlock(&ioc->internal_cmds.mutex);
3045         return ret;
3046 }
3047
3048 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3049 /**
3050  *      mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3051  *      @hd: Pointer to a SCSI HOST structure
3052  *      @vdevice: virtual target device
3053  *
3054  *      Uses the ISR, but with special processing.
3055  *      MUST be single-threaded.
3056  *
3057  */
3058 static void
3059 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3060 {
3061         INTERNAL_CMD             iocmd;
3062
3063         /* Ignore hidden raid components, this is handled when the command
3064          * is sent to the volume
3065          */
3066         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3067                 return;
3068
3069         if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3070             !vdevice->configured_lun)
3071                 return;
3072
3073         /* Following parameters will not change
3074          * in this routine.
3075          */
3076         iocmd.cmd = SYNCHRONIZE_CACHE;
3077         iocmd.flags = 0;
3078         iocmd.physDiskNum = -1;
3079         iocmd.data = NULL;
3080         iocmd.data_dma = -1;
3081         iocmd.size = 0;
3082         iocmd.rsvd = iocmd.rsvd2 = 0;
3083         iocmd.channel = vdevice->vtarget->channel;
3084         iocmd.id = vdevice->vtarget->id;
3085         iocmd.lun = vdevice->lun;
3086
3087         mptscsih_do_cmd(hd, &iocmd);
3088 }
3089
3090 static ssize_t
3091 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3092                          char *buf)
3093 {
3094         struct Scsi_Host *host = class_to_shost(dev);
3095         MPT_SCSI_HOST   *hd = shost_priv(host);
3096         MPT_ADAPTER *ioc = hd->ioc;
3097
3098         return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3099             (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3100             (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3101             (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3102             ioc->facts.FWVersion.Word & 0x000000FF);
3103 }
3104 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3105
3106 static ssize_t
3107 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3108                            char *buf)
3109 {
3110         struct Scsi_Host *host = class_to_shost(dev);
3111         MPT_SCSI_HOST   *hd = shost_priv(host);
3112         MPT_ADAPTER *ioc = hd->ioc;
3113
3114         return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3115             (ioc->biosVersion & 0xFF000000) >> 24,
3116             (ioc->biosVersion & 0x00FF0000) >> 16,
3117             (ioc->biosVersion & 0x0000FF00) >> 8,
3118             ioc->biosVersion & 0x000000FF);
3119 }
3120 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3121
3122 static ssize_t
3123 mptscsih_version_mpi_show(struct device *dev, 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, "%03x\n", ioc->facts.MsgVersion);
3131 }
3132 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3133
3134 static ssize_t
3135 mptscsih_version_product_show(struct device *dev,
3136                               struct device_attribute *attr,
3137 char *buf)
3138 {
3139         struct Scsi_Host *host = class_to_shost(dev);
3140         MPT_SCSI_HOST   *hd = shost_priv(host);
3141         MPT_ADAPTER *ioc = hd->ioc;
3142
3143         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3144 }
3145 static DEVICE_ATTR(version_product, S_IRUGO,
3146     mptscsih_version_product_show, NULL);
3147
3148 static ssize_t
3149 mptscsih_version_nvdata_persistent_show(struct device *dev,
3150                                         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, "%02xh\n",
3158             ioc->nvdata_version_persistent);
3159 }
3160 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3161     mptscsih_version_nvdata_persistent_show, NULL);
3162
3163 static ssize_t
3164 mptscsih_version_nvdata_default_show(struct device *dev,
3165                                      struct device_attribute *attr, char *buf)
3166 {
3167         struct Scsi_Host *host = class_to_shost(dev);
3168         MPT_SCSI_HOST   *hd = shost_priv(host);
3169         MPT_ADAPTER *ioc = hd->ioc;
3170
3171         return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3172 }
3173 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3174     mptscsih_version_nvdata_default_show, NULL);
3175
3176 static ssize_t
3177 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3178                          char *buf)
3179 {
3180         struct Scsi_Host *host = class_to_shost(dev);
3181         MPT_SCSI_HOST   *hd = shost_priv(host);
3182         MPT_ADAPTER *ioc = hd->ioc;
3183
3184         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3185 }
3186 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3187
3188 static ssize_t
3189 mptscsih_board_assembly_show(struct device *dev,
3190                              struct device_attribute *attr, char *buf)
3191 {
3192         struct Scsi_Host *host = class_to_shost(dev);
3193         MPT_SCSI_HOST   *hd = shost_priv(host);
3194         MPT_ADAPTER *ioc = hd->ioc;
3195
3196         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3197 }
3198 static DEVICE_ATTR(board_assembly, S_IRUGO,
3199     mptscsih_board_assembly_show, NULL);
3200
3201 static ssize_t
3202 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3203                            char *buf)
3204 {
3205         struct Scsi_Host *host = class_to_shost(dev);
3206         MPT_SCSI_HOST   *hd = shost_priv(host);
3207         MPT_ADAPTER *ioc = hd->ioc;
3208
3209         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3210 }
3211 static DEVICE_ATTR(board_tracer, S_IRUGO,
3212     mptscsih_board_tracer_show, NULL);
3213
3214 static ssize_t
3215 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3216                        char *buf)
3217 {
3218         struct Scsi_Host *host = class_to_shost(dev);
3219         MPT_SCSI_HOST   *hd = shost_priv(host);
3220         MPT_ADAPTER *ioc = hd->ioc;
3221
3222         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3223 }
3224 static DEVICE_ATTR(io_delay, S_IRUGO,
3225     mptscsih_io_delay_show, NULL);
3226
3227 static ssize_t
3228 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3229                            char *buf)
3230 {
3231         struct Scsi_Host *host = class_to_shost(dev);
3232         MPT_SCSI_HOST   *hd = shost_priv(host);
3233         MPT_ADAPTER *ioc = hd->ioc;
3234
3235         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3236 }
3237 static DEVICE_ATTR(device_delay, S_IRUGO,
3238     mptscsih_device_delay_show, NULL);
3239
3240 static ssize_t
3241 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3242                           char *buf)
3243 {
3244         struct Scsi_Host *host = class_to_shost(dev);
3245         MPT_SCSI_HOST   *hd = shost_priv(host);
3246         MPT_ADAPTER *ioc = hd->ioc;
3247
3248         return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3249 }
3250 static ssize_t
3251 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3252                            const char *buf, size_t count)
3253 {
3254         struct Scsi_Host *host = class_to_shost(dev);
3255         MPT_SCSI_HOST   *hd = shost_priv(host);
3256         MPT_ADAPTER *ioc = hd->ioc;
3257         int val = 0;
3258
3259         if (sscanf(buf, "%x", &val) != 1)
3260                 return -EINVAL;
3261
3262         ioc->debug_level = val;
3263         printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3264                                 ioc->name, ioc->debug_level);
3265         return strlen(buf);
3266 }
3267 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3268         mptscsih_debug_level_show, mptscsih_debug_level_store);
3269
3270 struct device_attribute *mptscsih_host_attrs[] = {
3271         &dev_attr_version_fw,
3272         &dev_attr_version_bios,
3273         &dev_attr_version_mpi,
3274         &dev_attr_version_product,
3275         &dev_attr_version_nvdata_persistent,
3276         &dev_attr_version_nvdata_default,
3277         &dev_attr_board_name,
3278         &dev_attr_board_assembly,
3279         &dev_attr_board_tracer,
3280         &dev_attr_io_delay,
3281         &dev_attr_device_delay,
3282         &dev_attr_debug_level,
3283         NULL,
3284 };
3285
3286 EXPORT_SYMBOL(mptscsih_host_attrs);
3287
3288 EXPORT_SYMBOL(mptscsih_remove);
3289 EXPORT_SYMBOL(mptscsih_shutdown);
3290 #ifdef CONFIG_PM
3291 EXPORT_SYMBOL(mptscsih_suspend);
3292 EXPORT_SYMBOL(mptscsih_resume);
3293 #endif
3294 EXPORT_SYMBOL(mptscsih_proc_info);
3295 EXPORT_SYMBOL(mptscsih_info);
3296 EXPORT_SYMBOL(mptscsih_qcmd);
3297 EXPORT_SYMBOL(mptscsih_slave_destroy);
3298 EXPORT_SYMBOL(mptscsih_slave_configure);
3299 EXPORT_SYMBOL(mptscsih_abort);
3300 EXPORT_SYMBOL(mptscsih_dev_reset);
3301 EXPORT_SYMBOL(mptscsih_bus_reset);
3302 EXPORT_SYMBOL(mptscsih_host_reset);
3303 EXPORT_SYMBOL(mptscsih_bios_param);
3304 EXPORT_SYMBOL(mptscsih_io_done);
3305 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3306 EXPORT_SYMBOL(mptscsih_scandv_complete);
3307 EXPORT_SYMBOL(mptscsih_event_process);
3308 EXPORT_SYMBOL(mptscsih_ioc_reset);
3309 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3310
3311 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/