drivers/message/fusion/mptscsih.c

   1 /*
   2  *  linux/drivers/message/fusion/mptscsih.c
   3  *      For use with LSI PCI chip/adapter(s)
   4  *      running LSI Fusion MPT (Message Passing Technology) firmware.
   5  *
   6  *  Copyright (c) 1999-2008 LSI Corporation
   7  *  (mailto:DL-MPTFusionLinux@lsi.com)
   8  *
   9  */
  10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  11 /*
  12     This program is free software; you can redistribute it and/or modify
  13     it under the terms of the GNU General Public License as published by
  14     the Free Software Foundation; version 2 of the License.
  15
  16     This program is distributed in the hope that it will be useful,
  17     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19     GNU General Public License for more details.
  20
  21     NO WARRANTY
  22     THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
  23     CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
  24     LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
  25     MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
  26     solely responsible for determining the appropriateness of using and
  27     distributing the Program and assumes all risks associated with its
  28     exercise of rights under this Agreement, including but not limited to
  29     the risks and costs of program errors, damage to or loss of data,
  30     programs or equipment, and unavailability or interruption of operations.
  31
  32     DISCLAIMER OF LIABILITY
  33     NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
  34     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35     DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
  36     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  37     TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  38     USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
  39     HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
  40
  41     You should have received a copy of the GNU General Public License
  42     along with this program; if not, write to the Free Software
  43     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  44 */
  45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  46
  47 #include <linux/module.h>
  48 #include <linux/kernel.h>
  49 #include <linux/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 static 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 static int      mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd);
  96 static int      mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout );
  97
  98 static int      mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout);
  99
 100 int             mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
 101 int             mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
 102
 103 int             mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
 104 static int      mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
 105 static void     mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
 106
 107 void            mptscsih_remove(struct pci_dev *);
 108 void            mptscsih_shutdown(struct pci_dev *);
 109 #ifdef CONFIG_PM
 110 int             mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
 111 int             mptscsih_resume(struct pci_dev *pdev);
 112 #endif
 113
 114 #define SNS_LEN(scp)    SCSI_SENSE_BUFFERSIZE
 115
 116 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 117 /**
 118  *      mptscsih_add_sge - Place a simple SGE at address pAddr.
 119  *      @pAddr: virtual address for SGE
 120  *      @flagslength: SGE flags and data transfer length
 121  *      @dma_addr: Physical address
 122  *
 123  *      This routine places a MPT request frame back on the MPT adapter's
 124  *      FreeQ.
 125  */
 126 static inline void
 127 mptscsih_add_sge(char *pAddr, u32 flagslength, dma_addr_t dma_addr)
 128 {
 129         if (sizeof(dma_addr_t) == sizeof(u64)) {
 130                 SGESimple64_t *pSge = (SGESimple64_t *) pAddr;
 131                 u32 tmp = dma_addr & 0xFFFFFFFF;
 132
 133                 pSge->FlagsLength = cpu_to_le32(flagslength);
 134                 pSge->Address.Low = cpu_to_le32(tmp);
 135                 tmp = (u32) ((u64)dma_addr >> 32);
 136                 pSge->Address.High = cpu_to_le32(tmp);
 137
 138         } else {
 139                 SGESimple32_t *pSge = (SGESimple32_t *) pAddr;
 140                 pSge->FlagsLength = cpu_to_le32(flagslength);
 141                 pSge->Address = cpu_to_le32(dma_addr);
 142         }
 143 } /* mptscsih_add_sge() */
 144
 145 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 146 /**
 147  *      mptscsih_add_chain - Place a chain SGE at address pAddr.
 148  *      @pAddr: virtual address for SGE
 149  *      @next: nextChainOffset value (u32's)
 150  *      @length: length of next SGL segment
 151  *      @dma_addr: Physical address
 152  *
 153  *      This routine places a MPT request frame back on the MPT adapter's
 154  *      FreeQ.
 155  */
 156 static inline void
 157 mptscsih_add_chain(char *pAddr, u8 next, u16 length, dma_addr_t dma_addr)
 158 {
 159         if (sizeof(dma_addr_t) == sizeof(u64)) {
 160                 SGEChain64_t *pChain = (SGEChain64_t *) pAddr;
 161                 u32 tmp = dma_addr & 0xFFFFFFFF;
 162
 163                 pChain->Length = cpu_to_le16(length);
 164                 pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT | mpt_addr_size();
 165
 166                 pChain->NextChainOffset = next;
 167
 168                 pChain->Address.Low = cpu_to_le32(tmp);
 169                 tmp = (u32) ((u64)dma_addr >> 32);
 170                 pChain->Address.High = cpu_to_le32(tmp);
 171         } else {
 172                 SGEChain32_t *pChain = (SGEChain32_t *) pAddr;
 173                 pChain->Length = cpu_to_le16(length);
 174                 pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT | mpt_addr_size();
 175                 pChain->NextChainOffset = next;
 176                 pChain->Address = cpu_to_le32(dma_addr);
 177         }
 178 } /* mptscsih_add_chain() */
 179
 180 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 181 /*
 182  *      mptscsih_getFreeChainBuffer - Function to get a free chain
 183  *      from the MPT_SCSI_HOST FreeChainQ.
 184  *      @ioc: Pointer to MPT_ADAPTER structure
 185  *      @req_idx: Index of the SCSI IO request frame. (output)
 186  *
 187  *      return SUCCESS or FAILED
 188  */
 189 static inline int
 190 mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
 191 {
 192         MPT_FRAME_HDR *chainBuf;
 193         unsigned long flags;
 194         int rc;
 195         int chain_idx;
 196
 197         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n",
 198             ioc->name));
 199         spin_lock_irqsave(&ioc->FreeQlock, flags);
 200         if (!list_empty(&ioc->FreeChainQ)) {
 201                 int offset;
 202
 203                 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR,
 204                                 u.frame.linkage.list);
 205                 list_del(&chainBuf->u.frame.linkage.list);
 206                 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer;
 207                 chain_idx = offset / ioc->req_sz;
 208                 rc = SUCCESS;
 209                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 210                     "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n",
 211                     ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx));
 212         } else {
 213                 rc = FAILED;
 214                 chain_idx = MPT_HOST_NO_CHAIN;
 215                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n",
 216                     ioc->name));
 217         }
 218         spin_unlock_irqrestore(&ioc->FreeQlock, flags);
 219
 220         *retIndex = chain_idx;
 221         return rc;
 222 } /* mptscsih_getFreeChainBuffer() */
 223
 224 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 225 /*
 226  *      mptscsih_AddSGE - Add a SGE (plus chain buffers) to the
 227  *      SCSIIORequest_t Message Frame.
 228  *      @ioc: Pointer to MPT_ADAPTER structure
 229  *      @SCpnt: Pointer to scsi_cmnd structure
 230  *      @pReq: Pointer to SCSIIORequest_t structure
 231  *
 232  *      Returns ...
 233  */
 234 static int
 235 mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
 236                 SCSIIORequest_t *pReq, int req_idx)
 237 {
 238         char    *psge;
 239         char    *chainSge;
 240         struct scatterlist *sg;
 241         int      frm_sz;
 242         int      sges_left, sg_done;
 243         int      chain_idx = MPT_HOST_NO_CHAIN;
 244         int      sgeOffset;
 245         int      numSgeSlots, numSgeThisFrame;
 246         u32      sgflags, sgdir, thisxfer = 0;
 247         int      chain_dma_off = 0;
 248         int      newIndex;
 249         int      ii;
 250         dma_addr_t v2;
 251         u32     RequestNB;
 252
 253         sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
 254         if (sgdir == MPI_SCSIIO_CONTROL_WRITE)  {
 255                 sgdir = MPT_TRANSFER_HOST_TO_IOC;
 256         } else {
 257                 sgdir = MPT_TRANSFER_IOC_TO_HOST;
 258         }
 259
 260         psge = (char *) &pReq->SGL;
 261         frm_sz = ioc->req_sz;
 262
 263         /* Map the data portion, if any.
 264          * sges_left  = 0 if no data transfer.
 265          */
 266         sges_left = scsi_dma_map(SCpnt);
 267         if (sges_left < 0)
 268                 return FAILED;
 269
 270         /* Handle the SG case.
 271          */
 272         sg = scsi_sglist(SCpnt);
 273         sg_done  = 0;
 274         sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION);
 275         chainSge = NULL;
 276
 277         /* Prior to entering this loop - the following must be set
 278          * current MF:  sgeOffset (bytes)
 279          *              chainSge (Null if original MF is not a chain buffer)
 280          *              sg_done (num SGE done for this MF)
 281          */
 282
 283 nextSGEset:
 284         numSgeSlots = ((frm_sz - sgeOffset) / (sizeof(u32) + sizeof(dma_addr_t)) );
 285         numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
 286
 287         sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | MPT_SGE_FLAGS_ADDRESSING | sgdir;
 288
 289         /* Get first (num - 1) SG elements
 290          * Skip any SG entries with a length of 0
 291          * NOTE: at finish, sg and psge pointed to NEXT data/location positions
 292          */
 293         for (ii=0; ii < (numSgeThisFrame-1); ii++) {
 294                 thisxfer = sg_dma_len(sg);
 295                 if (thisxfer == 0) {
 296                         sg = sg_next(sg); /* Get next SG element from the OS */
 297                         sg_done++;
 298                         continue;
 299                 }
 300
 301                 v2 = sg_dma_address(sg);
 302                 mptscsih_add_sge(psge, sgflags | thisxfer, v2);
 303
 304                 sg = sg_next(sg);       /* Get next SG element from the OS */
 305                 psge += (sizeof(u32) + sizeof(dma_addr_t));
 306                 sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
 307                 sg_done++;
 308         }
 309
 310         if (numSgeThisFrame == sges_left) {
 311                 /* Add last element, end of buffer and end of list flags.
 312                  */
 313                 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT |
 314                                 MPT_SGE_FLAGS_END_OF_BUFFER |
 315                                 MPT_SGE_FLAGS_END_OF_LIST;
 316
 317                 /* Add last SGE and set termination flags.
 318                  * Note: Last SGE may have a length of 0 - which should be ok.
 319                  */
 320                 thisxfer = sg_dma_len(sg);
 321
 322                 v2 = sg_dma_address(sg);
 323                 mptscsih_add_sge(psge, sgflags | thisxfer, v2);
 324                 /*
 325                 sg = sg_next(sg);
 326                 psge += (sizeof(u32) + sizeof(dma_addr_t));
 327                 */
 328                 sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
 329                 sg_done++;
 330
 331                 if (chainSge) {
 332                         /* The current buffer is a chain buffer,
 333                          * but there is not another one.
 334                          * Update the chain element
 335                          * Offset and Length fields.
 336                          */
 337                         mptscsih_add_chain((char *)chainSge, 0, sgeOffset, ioc->ChainBufferDMA + chain_dma_off);
 338                 } else {
 339                         /* The current buffer is the original MF
 340                          * and there is no Chain buffer.
 341                          */
 342                         pReq->ChainOffset = 0;
 343                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
 344                         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 345                             "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
 346                         ioc->RequestNB[req_idx] = RequestNB;
 347                 }
 348         } else {
 349                 /* At least one chain buffer is needed.
 350                  * Complete the first MF
 351                  *  - last SGE element, set the LastElement bit
 352                  *  - set ChainOffset (words) for orig MF
 353                  *             (OR finish previous MF chain buffer)
 354                  *  - update MFStructPtr ChainIndex
 355                  *  - Populate chain element
 356                  * Also
 357                  * Loop until done.
 358                  */
 359
 360                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n",
 361                                 ioc->name, sg_done));
 362
 363                 /* Set LAST_ELEMENT flag for last non-chain element
 364                  * in the buffer. Since psge points at the NEXT
 365                  * SGE element, go back one SGE element, update the flags
 366                  * and reset the pointer. (Note: sgflags & thisxfer are already
 367                  * set properly).
 368                  */
 369                 if (sg_done) {
 370                         u32 *ptmp = (u32 *) (psge - (sizeof(u32) + sizeof(dma_addr_t)));
 371                         sgflags = le32_to_cpu(*ptmp);
 372                         sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT;
 373                         *ptmp = cpu_to_le32(sgflags);
 374                 }
 375
 376                 if (chainSge) {
 377                         /* The current buffer is a chain buffer.
 378                          * chainSge points to the previous Chain Element.
 379                          * Update its chain element Offset and Length (must
 380                          * include chain element size) fields.
 381                          * Old chain element is now complete.
 382                          */
 383                         u8 nextChain = (u8) (sgeOffset >> 2);
 384                         sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
 385                         mptscsih_add_chain((char *)chainSge, nextChain, sgeOffset, ioc->ChainBufferDMA + chain_dma_off);
 386                 } else {
 387                         /* The original MF buffer requires a chain buffer -
 388                          * set the offset.
 389                          * Last element in this MF is a chain element.
 390                          */
 391                         pReq->ChainOffset = (u8) (sgeOffset >> 2);
 392                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
 393                         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
 394                         ioc->RequestNB[req_idx] = RequestNB;
 395                 }
 396
 397                 sges_left -= sg_done;
 398
 399
 400                 /* NOTE: psge points to the beginning of the chain element
 401                  * in current buffer. Get a chain buffer.
 402                  */
 403                 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
 404                         dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 405                             "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
 406                             ioc->name, pReq->CDB[0], SCpnt));
 407                         return FAILED;
 408                 }
 409
 410                 /* Update the tracking arrays.
 411                  * If chainSge == NULL, update ReqToChain, else ChainToChain
 412                  */
 413                 if (chainSge) {
 414                         ioc->ChainToChain[chain_idx] = newIndex;
 415                 } else {
 416                         ioc->ReqToChain[req_idx] = newIndex;
 417                 }
 418                 chain_idx = newIndex;
 419                 chain_dma_off = ioc->req_sz * chain_idx;
 420
 421                 /* Populate the chainSGE for the current buffer.
 422                  * - Set chain buffer pointer to psge and fill
 423                  *   out the Address and Flags fields.
 424                  */
 425                 chainSge = (char *) psge;
 426                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "  Current buff @ %p (index 0x%x)",
 427                     ioc->name, psge, req_idx));
 428
 429                 /* Start the SGE for the next buffer
 430                  */
 431                 psge = (char *) (ioc->ChainBuffer + chain_dma_off);
 432                 sgeOffset = 0;
 433                 sg_done = 0;
 434
 435                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "  Chain buff @ %p (index 0x%x)\n",
 436                     ioc->name, psge, chain_idx));
 437
 438                 /* Start the SGE for the next buffer
 439                  */
 440
 441                 goto nextSGEset;
 442         }
 443
 444         return SUCCESS;
 445 } /* mptscsih_AddSGE() */
 446
 447 static void
 448 mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
 449     U32 SlotStatus)
 450 {
 451         MPT_FRAME_HDR *mf;
 452         SEPRequest_t     *SEPMsg;
 453
 454         if (ioc->bus_type != SAS)
 455                 return;
 456
 457         /* Not supported for hidden raid components
 458          */
 459         if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
 460                 return;
 461
 462         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
 463                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
 464                     ioc->name,__func__));
 465                 return;
 466         }
 467
 468         SEPMsg = (SEPRequest_t *)mf;
 469         SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
 470         SEPMsg->Bus = vtarget->channel;
 471         SEPMsg->TargetID = vtarget->id;
 472         SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
 473         SEPMsg->SlotStatus = SlotStatus;
 474         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 475             "Sending SEP cmd=%x channel=%d id=%d\n",
 476             ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
 477         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
 478 }
 479
 480 #ifdef CONFIG_FUSION_LOGGING
 481 /**
 482  *      mptscsih_info_scsiio - debug print info on reply frame
 483  *      @ioc: Pointer to MPT_ADAPTER structure
 484  *      @sc: original scsi cmnd pointer
 485  *      @pScsiReply: Pointer to MPT reply frame
 486  *
 487  *      MPT_DEBUG_REPLY needs to be enabled to obtain this info
 488  *
 489  *      Refer to lsi/mpi.h.
 490  **/
 491 static void
 492 mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
 493 {
 494         char    *desc = NULL;
 495         char    *desc1 = NULL;
 496         u16     ioc_status;
 497         u8      skey, asc, ascq;
 498
 499         ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
 500
 501         switch (ioc_status) {
 502
 503         case MPI_IOCSTATUS_SUCCESS:
 504                 desc = "success";
 505                 break;
 506         case MPI_IOCSTATUS_SCSI_INVALID_BUS:
 507                 desc = "invalid bus";
 508                 break;
 509         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
 510                 desc = "invalid target_id";
 511                 break;
 512         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
 513                 desc = "device not there";
 514                 break;
 515         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
 516                 desc = "data overrun";
 517                 break;
 518         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
 519                 desc = "data underrun";
 520                 break;
 521         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
 522                 desc = "I/O data error";
 523                 break;
 524         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
 525                 desc = "protocol error";
 526                 break;
 527         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
 528                 desc = "task terminated";
 529                 break;
 530         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
 531                 desc = "residual mismatch";
 532                 break;
 533         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
 534                 desc = "task management failed";
 535                 break;
 536         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
 537                 desc = "IOC terminated";
 538                 break;
 539         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
 540                 desc = "ext terminated";
 541                 break;
 542         default:
 543                 desc = "";
 544                 break;
 545         }
 546
 547         switch (pScsiReply->SCSIStatus)
 548         {
 549
 550         case MPI_SCSI_STATUS_SUCCESS:
 551                 desc1 = "success";
 552                 break;
 553         case MPI_SCSI_STATUS_CHECK_CONDITION:
 554                 desc1 = "check condition";
 555                 break;
 556         case MPI_SCSI_STATUS_CONDITION_MET:
 557                 desc1 = "condition met";
 558                 break;
 559         case MPI_SCSI_STATUS_BUSY:
 560                 desc1 = "busy";
 561                 break;
 562         case MPI_SCSI_STATUS_INTERMEDIATE:
 563                 desc1 = "intermediate";
 564                 break;
 565         case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET:
 566                 desc1 = "intermediate condmet";
 567                 break;
 568         case MPI_SCSI_STATUS_RESERVATION_CONFLICT:
 569                 desc1 = "reservation conflict";
 570                 break;
 571         case MPI_SCSI_STATUS_COMMAND_TERMINATED:
 572                 desc1 = "command terminated";
 573                 break;
 574         case MPI_SCSI_STATUS_TASK_SET_FULL:
 575                 desc1 = "task set full";
 576                 break;
 577         case MPI_SCSI_STATUS_ACA_ACTIVE:
 578                 desc1 = "aca active";
 579                 break;
 580         case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT:
 581                 desc1 = "fcpext device logged out";
 582                 break;
 583         case MPI_SCSI_STATUS_FCPEXT_NO_LINK:
 584                 desc1 = "fcpext no link";
 585                 break;
 586         case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED:
 587                 desc1 = "fcpext unassigned";
 588                 break;
 589         default:
 590                 desc1 = "";
 591                 break;
 592         }
 593
 594         scsi_print_command(sc);
 595         printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d\n",
 596             ioc->name, pScsiReply->Bus, pScsiReply->TargetID);
 597         printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
 598             "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
 599             scsi_get_resid(sc));
 600         printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, "
 601             "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag),
 602             le32_to_cpu(pScsiReply->TransferCount), sc->result);
 603         printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), "
 604             "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
 605             ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus,
 606             pScsiReply->SCSIState);
 607
 608         if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
 609                 skey = sc->sense_buffer[2] & 0x0F;
 610                 asc = sc->sense_buffer[12];
 611                 ascq = sc->sense_buffer[13];
 612
 613                 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: "
 614                     "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq);
 615         }
 616
 617         /*
 618          *  Look for + dump FCP ResponseInfo[]!
 619          */
 620         if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
 621             pScsiReply->ResponseInfo)
 622                 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n",
 623                     ioc->name, le32_to_cpu(pScsiReply->ResponseInfo));
 624 }
 625 #endif
 626
 627 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 628 /*
 629  *      mptscsih_io_done - Main SCSI IO callback routine registered to
 630  *      Fusion MPT (base) driver
 631  *      @ioc: Pointer to MPT_ADAPTER structure
 632  *      @mf: Pointer to original MPT request frame
 633  *      @r: Pointer to MPT reply frame (NULL if TurboReply)
 634  *
 635  *      This routine is called from mpt.c::mpt_interrupt() at the completion
 636  *      of any SCSI IO request.
 637  *      This routine is registered with the Fusion MPT (base) driver at driver
 638  *      load/init time via the mpt_register() API call.
 639  *
 640  *      Returns 1 indicating alloc'd request frame ptr should be freed.
 641  */
 642 int
 643 mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
 644 {
 645         struct scsi_cmnd        *sc;
 646         MPT_SCSI_HOST   *hd;
 647         SCSIIORequest_t *pScsiReq;
 648         SCSIIOReply_t   *pScsiReply;
 649         u16              req_idx, req_idx_MR;
 650         VirtDevice       *vdevice;
 651         VirtTarget       *vtarget;
 652
 653         hd = shost_priv(ioc->sh);
 654         req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
 655         req_idx_MR = (mr != NULL) ?
 656             le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
 657         if ((req_idx != req_idx_MR) ||
 658             (mf->u.frame.linkage.arg1 == 0xdeadbeaf)) {
 659                 printk(MYIOC_s_ERR_FMT "Received a mf that was already freed\n",
 660                     ioc->name);
 661                 printk (MYIOC_s_ERR_FMT
 662                     "req_idx=%x req_idx_MR=%x mf=%p mr=%p sc=%p\n",
 663                     ioc->name, req_idx, req_idx_MR, mf, mr,
 664                     mptscsih_get_scsi_lookup(ioc, req_idx_MR));
 665                 return 0;
 666         }
 667
 668         sc = mptscsih_getclear_scsi_lookup(ioc, req_idx);
 669         if (sc == NULL) {
 670                 MPIHeader_t *hdr = (MPIHeader_t *)mf;
 671
 672                 /* Remark: writeSDP1 will use the ScsiDoneCtx
 673                  * If a SCSI I/O cmd, device disabled by OS and
 674                  * completion done. Cannot touch sc struct. Just free mem.
 675                  */
 676                 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST)
 677                         printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n",
 678                         ioc->name);
 679
 680                 mptscsih_freeChainBuffers(ioc, req_idx);
 681                 return 1;
 682         }
 683
 684         if ((unsigned char *)mf != sc->host_scribble) {
 685                 mptscsih_freeChainBuffers(ioc, req_idx);
 686                 return 1;
 687         }
 688
 689         sc->host_scribble = NULL;
 690         sc->result = DID_OK << 16;              /* Set default reply as OK */
 691         pScsiReq = (SCSIIORequest_t *) mf;
 692         pScsiReply = (SCSIIOReply_t *) mr;
 693
 694         if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
 695                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 696                         "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n",
 697                         ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag));
 698         }else{
 699                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 700                         "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
 701                         ioc->name, mf, mr, sc, req_idx));
 702         }
 703
 704         if (pScsiReply == NULL) {
 705                 /* special context reply handling */
 706                 ;
 707         } else {
 708                 u32      xfer_cnt;
 709                 u16      status;
 710                 u8       scsi_state, scsi_status;
 711                 u32      log_info;
 712
 713                 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
 714                 scsi_state = pScsiReply->SCSIState;
 715                 scsi_status = pScsiReply->SCSIStatus;
 716                 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
 717                 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
 718                 log_info = le32_to_cpu(pScsiReply->IOCLogInfo);
 719
 720                 /*
 721                  *  if we get a data underrun indication, yet no data was
 722                  *  transferred and the SCSI status indicates that the
 723                  *  command was never started, change the data underrun
 724                  *  to success
 725                  */
 726                 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
 727                     (scsi_status == MPI_SCSI_STATUS_BUSY ||
 728                      scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT ||
 729                      scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) {
 730                         status = MPI_IOCSTATUS_SUCCESS;
 731                 }
 732
 733                 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
 734                         mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);
 735
 736                 /*
 737                  *  Look for + dump FCP ResponseInfo[]!
 738                  */
 739                 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
 740                     pScsiReply->ResponseInfo) {
 741                         printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%d] "
 742                         "FCP_ResponseInfo=%08xh\n", ioc->name,
 743                         sc->device->host->host_no, sc->device->channel,
 744                         sc->device->id, sc->device->lun,
 745                         le32_to_cpu(pScsiReply->ResponseInfo));
 746                 }
 747
 748                 switch(status) {
 749                 case MPI_IOCSTATUS_BUSY:                        /* 0x0002 */
 750                         /* CHECKME!
 751                          * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry)
 752                          * But not: DID_BUS_BUSY lest one risk
 753                          * killing interrupt handler:-(
 754                          */
 755                         sc->result = SAM_STAT_BUSY;
 756                         break;
 757
 758                 case MPI_IOCSTATUS_SCSI_INVALID_BUS:            /* 0x0041 */
 759                 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:       /* 0x0042 */
 760                         sc->result = DID_BAD_TARGET << 16;
 761                         break;
 762
 763                 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
 764                         /* Spoof to SCSI Selection Timeout! */
 765                         if (ioc->bus_type != FC)
 766                                 sc->result = DID_NO_CONNECT << 16;
 767                         /* else fibre, just stall until rescan event */
 768                         else
 769                                 sc->result = DID_REQUEUE << 16;
 770
 771                         if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
 772                                 hd->sel_timeout[pScsiReq->TargetID]++;
 773
 774                         vdevice = sc->device->hostdata;
 775                         if (!vdevice)
 776                                 break;
 777                         vtarget = vdevice->vtarget;
 778                         if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) {
 779                                 mptscsih_issue_sep_command(ioc, vtarget,
 780                                     MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED);
 781                                 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON;
 782                         }
 783                         break;
 784
 785                 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
 786                         if ( ioc->bus_type == SAS ) {
 787                                 u16 ioc_status = le16_to_cpu(pScsiReply->IOCStatus);
 788                                 if (ioc_status & MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) {
 789                                         if ((log_info & SAS_LOGINFO_MASK)
 790                                             == SAS_LOGINFO_NEXUS_LOSS) {
 791                                                 sc->result = (DID_BUS_BUSY << 16);
 792                                                 break;
 793                                         }
 794                                 }
 795                         } else if (ioc->bus_type == FC) {
 796                                 /*
 797                                  * The FC IOC may kill a request for variety of
 798                                  * reasons, some of which may be recovered by a
 799                                  * retry, some which are unlikely to be
 800                                  * recovered. Return DID_ERROR instead of
 801                                  * DID_RESET to permit retry of the command,
 802                                  * just not an infinite number of them
 803                                  */
 804                                 sc->result = DID_ERROR << 16;
 805                                 break;
 806                         }
 807
 808                         /*
 809                          * Allow non-SAS & non-NEXUS_LOSS to drop into below code
 810                          */
 811
 812                 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
 813                 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
 814                         /* Linux handles an unsolicited DID_RESET better
 815                          * than an unsolicited DID_ABORT.
 816                          */
 817                         sc->result = DID_RESET << 16;
 818
 819                         break;
 820
 821                 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:      /* 0x0049 */
 822                         scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
 823                         if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
 824                                 sc->result=DID_SOFT_ERROR << 16;
 825                         else /* Sufficient data transfer occurred */
 826                                 sc->result = (DID_OK << 16) | scsi_status;
 827                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 828                             "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
 829                             ioc->name, sc->result, sc->device->channel, sc->device->id));
 830                         break;
 831
 832                 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
 833                         /*
 834                          *  Do upfront check for valid SenseData and give it
 835                          *  precedence!
 836                          */
 837                         sc->result = (DID_OK << 16) | scsi_status;
 838                         if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) {
 839                                 /* Have already saved the status and sense data
 840                                  */
 841                                 ;
 842                         } else {
 843                                 if (xfer_cnt < sc->underflow) {
 844                                         if (scsi_status == SAM_STAT_BUSY)
 845                                                 sc->result = SAM_STAT_BUSY;
 846                                         else
 847                                                 sc->result = DID_SOFT_ERROR << 16;
 848                                 }
 849                                 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
 850                                         /* What to do?
 851                                         */
 852                                         sc->result = DID_SOFT_ERROR << 16;
 853                                 }
 854                                 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
 855                                         /*  Not real sure here either...  */
 856                                         sc->result = DID_RESET << 16;
 857                                 }
 858                         }
 859
 860
 861                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 862                             "  sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
 863                             ioc->name, sc->underflow));
 864                         dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 865                             "  ActBytesXferd=%02xh\n", ioc->name, xfer_cnt));
 866
 867                         /* Report Queue Full
 868                          */
 869                         if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
 870                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 871
 872                         break;
 873
 874                 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:           /* 0x0044 */
 875                         scsi_set_resid(sc, 0);
 876                 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
 877                 case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
 878                         sc->result = (DID_OK << 16) | scsi_status;
 879                         if (scsi_state == 0) {
 880                                 ;
 881                         } else if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) {
 882                                 /*
 883                                  * If running against circa 200003dd 909 MPT f/w,
 884                                  * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
 885                                  * (QUEUE_FULL) returned from device! --> get 0x0000?128
 886                                  * and with SenseBytes set to 0.
 887                                  */
 888                                 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
 889                                         mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 890
 891                         }
 892                         else if (scsi_state &
 893                                  (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
 894                            ) {
 895                                 /*
 896                                  * What to do?
 897                                  */
 898                                 sc->result = DID_SOFT_ERROR << 16;
 899                         }
 900                         else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
 901                                 /*  Not real sure here either...  */
 902                                 sc->result = DID_RESET << 16;
 903                         }
 904                         else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
 905                                 /* Device Inq. data indicates that it supports
 906                                  * QTags, but rejects QTag messages.
 907                                  * This command completed OK.
 908                                  *
 909                                  * Not real sure here either so do nothing...  */
 910                         }
 911
 912                         if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
 913                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 914
 915                         /* Add handling of:
 916                          * Reservation Conflict, Busy,
 917                          * Command Terminated, CHECK
 918                          */
 919                         break;
 920
 921                 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
 922                         sc->result = DID_SOFT_ERROR << 16;
 923                         break;
 924
 925                 case MPI_IOCSTATUS_INVALID_FUNCTION:            /* 0x0001 */
 926                 case MPI_IOCSTATUS_INVALID_SGL:                 /* 0x0003 */
 927                 case MPI_IOCSTATUS_INTERNAL_ERROR:              /* 0x0004 */
 928                 case MPI_IOCSTATUS_RESERVED:                    /* 0x0005 */
 929                 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:      /* 0x0006 */
 930                 case MPI_IOCSTATUS_INVALID_FIELD:               /* 0x0007 */
 931                 case MPI_IOCSTATUS_INVALID_STATE:               /* 0x0008 */
 932                 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
 933                 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:       /* 0x004A */
 934                 default:
 935                         /*
 936                          * What to do?
 937                          */
 938                         sc->result = DID_SOFT_ERROR << 16;
 939                         break;
 940
 941                 }       /* switch(status) */
 942
 943 #ifdef CONFIG_FUSION_LOGGING
 944                 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
 945                         mptscsih_info_scsiio(ioc, sc, pScsiReply);
 946 #endif
 947
 948         } /* end of address reply case */
 949
 950         /* Unmap the DMA buffers, if any. */
 951         scsi_dma_unmap(sc);
 952
 953         sc->scsi_done(sc);              /* Issue the command callback */
 954
 955         /* Free Chain buffers */
 956         mptscsih_freeChainBuffers(ioc, req_idx);
 957         return 1;
 958 }
 959
 960 /*
 961  *      mptscsih_flush_running_cmds - For each command found, search
 962  *              Scsi_Host instance taskQ and reply to OS.
 963  *              Called only if recovering from a FW reload.
 964  *      @hd: Pointer to a SCSI HOST structure
 965  *
 966  *      Returns: None.
 967  *
 968  *      Must be called while new I/Os are being queued.
 969  */
 970 static void
 971 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
 972 {
 973         MPT_ADAPTER *ioc = hd->ioc;
 974         struct scsi_cmnd *sc;
 975         SCSIIORequest_t *mf = NULL;
 976         int              ii;
 977         int              channel, id;
 978
 979         for (ii= 0; ii < ioc->req_depth; ii++) {
 980                 sc = mptscsih_getclear_scsi_lookup(ioc, ii);
 981                 if (!sc)
 982                         continue;
 983                 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
 984                 if (!mf)
 985                         continue;
 986                 channel = mf->Bus;
 987                 id = mf->TargetID;
 988                 mptscsih_freeChainBuffers(ioc, ii);
 989                 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
 990                 if ((unsigned char *)mf != sc->host_scribble)
 991                         continue;
 992                 scsi_dma_unmap(sc);
 993                 sc->result = DID_RESET << 16;
 994                 sc->host_scribble = NULL;
 995                 sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT
 996                     "completing cmds: fw_channel %d, fw_id %d, sc=%p,"
 997                     " mf = %p, idx=%x\n", ioc->name, channel, id, sc, mf, ii);
 998                 sc->scsi_done(sc);
 999         }
1000 }
1001
1002 /*
1003  *      mptscsih_search_running_cmds - Delete any commands associated
1004  *              with the specified target and lun. Function called only
1005  *              when a lun is disable by mid-layer.
1006  *              Do NOT access the referenced scsi_cmnd structure or
1007  *              members. Will cause either a paging or NULL ptr error.
1008  *              (BUT, BUT, BUT, the code does reference it! - mdr)
1009  *      @hd: Pointer to a SCSI HOST structure
1010  *      @vdevice: per device private data
1011  *
1012  *      Returns: None.
1013  *
1014  *      Called from slave_destroy.
1015  */
1016 static void
1017 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
1018 {
1019         SCSIIORequest_t *mf = NULL;
1020         int              ii;
1021         struct scsi_cmnd *sc;
1022         struct scsi_lun  lun;
1023         MPT_ADAPTER *ioc = hd->ioc;
1024         unsigned long   flags;
1025
1026         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1027         for (ii = 0; ii < ioc->req_depth; ii++) {
1028                 if ((sc = ioc->ScsiLookup[ii]) != NULL) {
1029
1030                         mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii);
1031                         if (mf == NULL)
1032                                 continue;
1033                         /* If the device is a hidden raid component, then its
1034                          * expected that the mf->function will be RAID_SCSI_IO
1035                          */
1036                         if (vdevice->vtarget->tflags &
1037                             MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
1038                             MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
1039                                 continue;
1040
1041                         int_to_scsilun(vdevice->lun, &lun);
1042                         if ((mf->Bus != vdevice->vtarget->channel) ||
1043                             (mf->TargetID != vdevice->vtarget->id) ||
1044                             memcmp(lun.scsi_lun, mf->LUN, 8))
1045                                 continue;
1046
1047                         if ((unsigned char *)mf != sc->host_scribble)
1048                                 continue;
1049                         ioc->ScsiLookup[ii] = NULL;
1050                         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1051                         mptscsih_freeChainBuffers(ioc, ii);
1052                         mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf);
1053                         scsi_dma_unmap(sc);
1054                         sc->host_scribble = NULL;
1055                         sc->result = DID_NO_CONNECT << 16;
1056                         sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT "completing cmds: fw_channel %d,"
1057                            "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name, vdevice->vtarget->channel,
1058                            vdevice->vtarget->id, sc, mf, ii);
1059                         sc->scsi_done(sc);
1060                         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1061                 }
1062         }
1063         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1064         return;
1065 }
1066
1067 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1068
1069 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1070 /*
1071  *      mptscsih_report_queue_full - Report QUEUE_FULL status returned
1072  *      from a SCSI target device.
1073  *      @sc: Pointer to scsi_cmnd structure
1074  *      @pScsiReply: Pointer to SCSIIOReply_t
1075  *      @pScsiReq: Pointer to original SCSI request
1076  *
1077  *      This routine periodically reports QUEUE_FULL status returned from a
1078  *      SCSI target device.  It reports this to the console via kernel
1079  *      printk() API call, not more than once every 10 seconds.
1080  */
1081 static void
1082 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1083 {
1084         long time = jiffies;
1085         MPT_SCSI_HOST           *hd;
1086         MPT_ADAPTER     *ioc;
1087
1088         if (sc->device == NULL)
1089                 return;
1090         if (sc->device->host == NULL)
1091                 return;
1092         if ((hd = shost_priv(sc->device->host)) == NULL)
1093                 return;
1094         ioc = hd->ioc;
1095         if (time - hd->last_queue_full > 10 * HZ) {
1096                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n",
1097                                 ioc->name, 0, sc->device->id, sc->device->lun));
1098                 hd->last_queue_full = time;
1099         }
1100 }
1101
1102 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1103 /*
1104  *      mptscsih_remove - Removed scsi devices
1105  *      @pdev: Pointer to pci_dev structure
1106  *
1107  *
1108  */
1109 void
1110 mptscsih_remove(struct pci_dev *pdev)
1111 {
1112         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1113         struct Scsi_Host        *host = ioc->sh;
1114         MPT_SCSI_HOST           *hd;
1115         int sz1;
1116
1117         if(!host) {
1118                 mpt_detach(pdev);
1119                 return;
1120         }
1121
1122         scsi_remove_host(host);
1123
1124         if((hd = shost_priv(host)) == NULL)
1125                 return;
1126
1127         mptscsih_shutdown(pdev);
1128
1129         sz1=0;
1130
1131         if (ioc->ScsiLookup != NULL) {
1132                 sz1 = ioc->req_depth * sizeof(void *);
1133                 kfree(ioc->ScsiLookup);
1134                 ioc->ScsiLookup = NULL;
1135         }
1136
1137         dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1138             "Free'd ScsiLookup (%d) memory\n",
1139             ioc->name, sz1));
1140
1141         kfree(hd->info_kbuf);
1142
1143         /* NULL the Scsi_Host pointer
1144          */
1145         ioc->sh = NULL;
1146
1147         scsi_host_put(host);
1148
1149         mpt_detach(pdev);
1150
1151 }
1152
1153 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1154 /*
1155  *      mptscsih_shutdown - reboot notifier
1156  *
1157  */
1158 void
1159 mptscsih_shutdown(struct pci_dev *pdev)
1160 {
1161 }
1162
1163 #ifdef CONFIG_PM
1164 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1165 /*
1166  *      mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1167  *
1168  *
1169  */
1170 int
1171 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1172 {
1173         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1174
1175         scsi_block_requests(ioc->sh);
1176         flush_scheduled_work();
1177         mptscsih_shutdown(pdev);
1178         return mpt_suspend(pdev,state);
1179 }
1180
1181 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1182 /*
1183  *      mptscsih_resume - Fusion MPT scsi driver resume routine.
1184  *
1185  *
1186  */
1187 int
1188 mptscsih_resume(struct pci_dev *pdev)
1189 {
1190         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1191         int rc;
1192
1193         rc = mpt_resume(pdev);
1194         scsi_unblock_requests(ioc->sh);
1195         return rc;
1196 }
1197
1198 #endif
1199
1200 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1201 /**
1202  *      mptscsih_info - Return information about MPT adapter
1203  *      @SChost: Pointer to Scsi_Host structure
1204  *
1205  *      (linux scsi_host_template.info routine)
1206  *
1207  *      Returns pointer to buffer where information was written.
1208  */
1209 const char *
1210 mptscsih_info(struct Scsi_Host *SChost)
1211 {
1212         MPT_SCSI_HOST *h;
1213         int size = 0;
1214
1215         h = shost_priv(SChost);
1216
1217         if (h) {
1218                 if (h->info_kbuf == NULL)
1219                         if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1220                                 return h->info_kbuf;
1221                 h->info_kbuf[0] = '\0';
1222
1223                 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1224                 h->info_kbuf[size-1] = '\0';
1225         }
1226
1227         return h->info_kbuf;
1228 }
1229
1230 struct info_str {
1231         char *buffer;
1232         int   length;
1233         int   offset;
1234         int   pos;
1235 };
1236
1237 static void
1238 mptscsih_copy_mem_info(struct info_str *info, char *data, int len)
1239 {
1240         if (info->pos + len > info->length)
1241                 len = info->length - info->pos;
1242
1243         if (info->pos + len < info->offset) {
1244                 info->pos += len;
1245                 return;
1246         }
1247
1248         if (info->pos < info->offset) {
1249                 data += (info->offset - info->pos);
1250                 len  -= (info->offset - info->pos);
1251         }
1252
1253         if (len > 0) {
1254                 memcpy(info->buffer + info->pos, data, len);
1255                 info->pos += len;
1256         }
1257 }
1258
1259 static int
1260 mptscsih_copy_info(struct info_str *info, char *fmt, ...)
1261 {
1262         va_list args;
1263         char buf[81];
1264         int len;
1265
1266         va_start(args, fmt);
1267         len = vsprintf(buf, fmt, args);
1268         va_end(args);
1269
1270         mptscsih_copy_mem_info(info, buf, len);
1271         return len;
1272 }
1273
1274 static int
1275 mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len)
1276 {
1277         struct info_str info;
1278
1279         info.buffer     = pbuf;
1280         info.length     = len;
1281         info.offset     = offset;
1282         info.pos        = 0;
1283
1284         mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name);
1285         mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1286         mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts);
1287         mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth);
1288
1289         return ((info.pos > info.offset) ? info.pos - info.offset : 0);
1290 }
1291
1292 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1293 /**
1294  *      mptscsih_proc_info - Return information about MPT adapter
1295  *      @host:   scsi host struct
1296  *      @buffer: if write, user data; if read, buffer for user
1297  *      @start: returns the buffer address
1298  *      @offset: if write, 0; if read, the current offset into the buffer from
1299  *               the previous read.
1300  *      @length: if write, return length;
1301  *      @func:   write = 1; read = 0
1302  *
1303  *      (linux scsi_host_template.info routine)
1304  */
1305 int
1306 mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
1307                         int length, int func)
1308 {
1309         MPT_SCSI_HOST   *hd = shost_priv(host);
1310         MPT_ADAPTER     *ioc = hd->ioc;
1311         int size = 0;
1312
1313         if (func) {
1314                 /*
1315                  * write is not supported
1316                  */
1317         } else {
1318                 if (start)
1319                         *start = buffer;
1320
1321                 size = mptscsih_host_info(ioc, buffer, offset, length);
1322         }
1323
1324         return size;
1325 }
1326
1327 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1328 #define ADD_INDEX_LOG(req_ent)  do { } while(0)
1329
1330 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1331 /**
1332  *      mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1333  *      @SCpnt: Pointer to scsi_cmnd structure
1334  *      @done: Pointer SCSI mid-layer IO completion function
1335  *
1336  *      (linux scsi_host_template.queuecommand routine)
1337  *      This is the primary SCSI IO start routine.  Create a MPI SCSIIORequest
1338  *      from a linux scsi_cmnd request and send it to the IOC.
1339  *
1340  *      Returns 0. (rtn value discarded by linux scsi mid-layer)
1341  */
1342 int
1343 mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1344 {
1345         MPT_SCSI_HOST           *hd;
1346         MPT_FRAME_HDR           *mf;
1347         SCSIIORequest_t         *pScsiReq;
1348         VirtDevice              *vdevice = SCpnt->device->hostdata;
1349         int      lun;
1350         u32      datalen;
1351         u32      scsictl;
1352         u32      scsidir;
1353         u32      cmd_len;
1354         int      my_idx;
1355         int      ii;
1356         MPT_ADAPTER *ioc;
1357
1358         hd = shost_priv(SCpnt->device->host);
1359         ioc = hd->ioc;
1360         lun = SCpnt->device->lun;
1361         SCpnt->scsi_done = done;
1362
1363         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
1364                 ioc->name, SCpnt, done));
1365
1366         if (hd->resetPending) {
1367                 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT "qcmd: SCpnt=%p timeout + 60HZ\n",
1368                         ioc->name, SCpnt));
1369                 return SCSI_MLQUEUE_HOST_BUSY;
1370         }
1371
1372         /*
1373          *  Put together a MPT SCSI request...
1374          */
1375         if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) {
1376                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1377                                 ioc->name));
1378                 return SCSI_MLQUEUE_HOST_BUSY;
1379         }
1380
1381         pScsiReq = (SCSIIORequest_t *) mf;
1382
1383         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1384
1385         ADD_INDEX_LOG(my_idx);
1386
1387         /*    TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1388          *    Seems we may receive a buffer (datalen>0) even when there
1389          *    will be no data transfer!  GRRRRR...
1390          */
1391         if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1392                 datalen = scsi_bufflen(SCpnt);
1393                 scsidir = MPI_SCSIIO_CONTROL_READ;      /* DATA IN  (host<--ioc<--dev) */
1394         } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1395                 datalen = scsi_bufflen(SCpnt);
1396                 scsidir = MPI_SCSIIO_CONTROL_WRITE;     /* DATA OUT (host-->ioc-->dev) */
1397         } else {
1398                 datalen = 0;
1399                 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1400         }
1401
1402         /* Default to untagged. Once a target structure has been allocated,
1403          * use the Inquiry data to determine if device supports tagged.
1404          */
1405         if (vdevice
1406             && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1407             && (SCpnt->device->tagged_supported)) {
1408                 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1409         } else {
1410                 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1411         }
1412
1413         /* Use the above information to set up the message frame
1414          */
1415         pScsiReq->TargetID = (u8) vdevice->vtarget->id;
1416         pScsiReq->Bus = vdevice->vtarget->channel;
1417         pScsiReq->ChainOffset = 0;
1418         if (vdevice->vtarget->tflags &  MPT_TARGET_FLAGS_RAID_COMPONENT)
1419                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1420         else
1421                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1422         pScsiReq->CDBLength = SCpnt->cmd_len;
1423         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1424         pScsiReq->Reserved = 0;
1425         pScsiReq->MsgFlags = mpt_msg_flags();
1426         int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1427         pScsiReq->Control = cpu_to_le32(scsictl);
1428
1429         /*
1430          *  Write SCSI CDB into the message
1431          */
1432         cmd_len = SCpnt->cmd_len;
1433         for (ii=0; ii < cmd_len; ii++)
1434                 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1435
1436         for (ii=cmd_len; ii < 16; ii++)
1437                 pScsiReq->CDB[ii] = 0;
1438
1439         /* DataLength */
1440         pScsiReq->DataLength = cpu_to_le32(datalen);
1441
1442         /* SenseBuffer low address */
1443         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
1444                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1445
1446         /* Now add the SG list
1447          * Always have a SGE even if null length.
1448          */
1449         if (datalen == 0) {
1450                 /* Add a NULL SGE */
1451                 mptscsih_add_sge((char *)&pScsiReq->SGL, MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1452                         (dma_addr_t) -1);
1453         } else {
1454                 /* Add a 32 or 64 bit SGE */
1455                 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1456                         goto fail;
1457         }
1458
1459         SCpnt->host_scribble = (unsigned char *)mf;
1460         mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt);
1461
1462         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
1463         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1464                         ioc->name, SCpnt, mf, my_idx));
1465         DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf);
1466         return 0;
1467
1468  fail:
1469         mptscsih_freeChainBuffers(ioc, my_idx);
1470         mpt_free_msg_frame(ioc, mf);
1471         return SCSI_MLQUEUE_HOST_BUSY;
1472 }
1473
1474 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1475 /*
1476  *      mptscsih_freeChainBuffers - Function to free chain buffers associated
1477  *      with a SCSI IO request
1478  *      @hd: Pointer to the MPT_SCSI_HOST instance
1479  *      @req_idx: Index of the SCSI IO request frame.
1480  *
1481  *      Called if SG chain buffer allocation fails and mptscsih callbacks.
1482  *      No return.
1483  */
1484 static void
1485 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1486 {
1487         MPT_FRAME_HDR *chain;
1488         unsigned long flags;
1489         int chain_idx;
1490         int next;
1491
1492         /* Get the first chain index and reset
1493          * tracker state.
1494          */
1495         chain_idx = ioc->ReqToChain[req_idx];
1496         ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1497
1498         while (chain_idx != MPT_HOST_NO_CHAIN) {
1499
1500                 /* Save the next chain buffer index */
1501                 next = ioc->ChainToChain[chain_idx];
1502
1503                 /* Free this chain buffer and reset
1504                  * tracker
1505                  */
1506                 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1507
1508                 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1509                                         + (chain_idx * ioc->req_sz));
1510
1511                 spin_lock_irqsave(&ioc->FreeQlock, flags);
1512                 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1513                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1514
1515                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1516                                 ioc->name, chain_idx));
1517
1518                 /* handle next */
1519                 chain_idx = next;
1520         }
1521         return;
1522 }
1523
1524 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1525 /*
1526  *      Reset Handling
1527  */
1528
1529 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1530 /**
1531  *      mptscsih_TMHandler - Generic handler for SCSI Task Management.
1532  *      @hd: Pointer to MPT SCSI HOST structure
1533  *      @type: Task Management type
1534  *      @channel: channel number for task management
1535  *      @id: Logical Target ID for reset (if appropriate)
1536  *      @lun: Logical Unit for reset (if appropriate)
1537  *      @ctx2abort: Context for the task to be aborted (if appropriate)
1538  *      @timeout: timeout for task management control
1539  *
1540  *      Fall through to mpt_HardResetHandler if: not operational, too many
1541  *      failed TM requests or handshake failure.
1542  *
1543  *      Remark: Currently invoked from a non-interrupt thread (_bh).
1544  *
1545  *      Note: With old EH code, at most 1 SCSI TaskMgmt function per IOC
1546  *      will be active.
1547  *
1548  *      Returns 0 for SUCCESS, or %FAILED.
1549  **/
1550 int
1551 mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1552 {
1553         MPT_ADAPTER     *ioc;
1554         int              rc = -1;
1555         u32              ioc_raw_state;
1556         unsigned long    flags;
1557
1558         ioc = hd->ioc;
1559         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler Entered!\n", ioc->name));
1560
1561         // SJR - CHECKME - Can we avoid this here?
1562         // (mpt_HardResetHandler has this check...)
1563         spin_lock_irqsave(&ioc->diagLock, flags);
1564         if ((ioc->diagPending) || (ioc->alt_ioc && ioc->alt_ioc->diagPending)) {
1565                 spin_unlock_irqrestore(&ioc->diagLock, flags);
1566                 return FAILED;
1567         }
1568         spin_unlock_irqrestore(&ioc->diagLock, flags);
1569
1570         /*  Wait a fixed amount of time for the TM pending flag to be cleared.
1571          *  If we time out and not bus reset, then we return a FAILED status
1572          *  to the caller.
1573          *  The call to mptscsih_tm_pending_wait() will set the pending flag
1574          *  if we are
1575          *  successful. Otherwise, reload the FW.
1576          */
1577         if (mptscsih_tm_pending_wait(hd) == FAILED) {
1578                 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1579                         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler abort: "
1580                            "Timed out waiting for last TM (%d) to complete! \n",
1581                            ioc->name, hd->tmPending));
1582                         return FAILED;
1583                 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET) {
1584                         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler target "
1585                                 "reset: Timed out waiting for last TM (%d) "
1586                                 "to complete! \n", ioc->name,
1587                                 hd->tmPending));
1588                         return FAILED;
1589                 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) {
1590                         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler bus reset: "
1591                            "Timed out waiting for last TM (%d) to complete! \n",
1592                           ioc->name, hd->tmPending));
1593                         return FAILED;
1594                 }
1595         } else {
1596                 spin_lock_irqsave(&ioc->FreeQlock, flags);
1597                 hd->tmPending |=  (1 << type);
1598                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1599         }
1600
1601         ioc_raw_state = mpt_GetIocState(ioc, 0);
1602
1603         if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1604                 printk(MYIOC_s_WARN_FMT
1605                         "TM Handler for type=%x: IOC Not operational (0x%x)!\n",
1606                         ioc->name, type, ioc_raw_state);
1607                 printk(MYIOC_s_WARN_FMT " Issuing HardReset!!\n", ioc->name);
1608                 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1609                         printk(MYIOC_s_WARN_FMT "TMHandler: HardReset "
1610                             "FAILED!!\n", ioc->name);
1611                 return FAILED;
1612         }
1613
1614         if (ioc_raw_state & MPI_DOORBELL_ACTIVE) {
1615                 printk(MYIOC_s_WARN_FMT
1616                         "TM Handler for type=%x: ioc_state: "
1617                         "DOORBELL_ACTIVE (0x%x)!\n",
1618                         ioc->name, type, ioc_raw_state);
1619                 return FAILED;
1620         }
1621
1622         /* Isse the Task Mgmt request.
1623          */
1624         if (hd->hard_resets < -1)
1625                 hd->hard_resets++;
1626
1627         rc = mptscsih_IssueTaskMgmt(hd, type, channel, id, lun,
1628             ctx2abort, timeout);
1629         if (rc)
1630                 printk(MYIOC_s_INFO_FMT "Issue of TaskMgmt failed!\n",
1631                        ioc->name);
1632         else
1633                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issue of TaskMgmt Successful!\n",
1634                            ioc->name));
1635
1636         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1637                         "TMHandler rc = %d!\n", ioc->name, rc));
1638
1639         return rc;
1640 }
1641
1642
1643 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1644 /**
1645  *      mptscsih_IssueTaskMgmt - Generic send Task Management function.
1646  *      @hd: Pointer to MPT_SCSI_HOST structure
1647  *      @type: Task Management type
1648  *      @channel: channel number for task management
1649  *      @id: Logical Target ID for reset (if appropriate)
1650  *      @lun: Logical Unit for reset (if appropriate)
1651  *      @ctx2abort: Context for the task to be aborted (if appropriate)
1652  *      @timeout: timeout for task management control
1653  *
1654  *      Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1655  *      or a non-interrupt thread.  In the former, must not call schedule().
1656  *
1657  *      Not all fields are meaningfull for all task types.
1658  *
1659  *      Returns 0 for SUCCESS, or FAILED.
1660  *
1661  **/
1662 static int
1663 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1664 {
1665         MPT_FRAME_HDR   *mf;
1666         SCSITaskMgmt_t  *pScsiTm;
1667         int              ii;
1668         int              retval;
1669         MPT_ADAPTER     *ioc = hd->ioc;
1670
1671         /* Return Fail to calling function if no message frames available.
1672          */
1673         if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
1674                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "IssueTaskMgmt, no msg frames!!\n",
1675                                 ioc->name));
1676                 return FAILED;
1677         }
1678         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "IssueTaskMgmt request @ %p\n",
1679                         ioc->name, mf));
1680
1681         /* Format the Request
1682          */
1683         pScsiTm = (SCSITaskMgmt_t *) mf;
1684         pScsiTm->TargetID = id;
1685         pScsiTm->Bus = channel;
1686         pScsiTm->ChainOffset = 0;
1687         pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1688
1689         pScsiTm->Reserved = 0;
1690         pScsiTm->TaskType = type;
1691         pScsiTm->Reserved1 = 0;
1692         pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1693                     ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1694
1695         int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1696
1697         for (ii=0; ii < 7; ii++)
1698                 pScsiTm->Reserved2[ii] = 0;
1699
1700         pScsiTm->TaskMsgContext = ctx2abort;
1701
1702         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "IssueTaskMgmt: ctx2abort (0x%08x) "
1703                 "type=%d\n", ioc->name, ctx2abort, type));
1704
1705         DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1706
1707         if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1708             (ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1709                 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
1710         else {
1711                 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc,
1712                         sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1713                 if (retval) {
1714                         dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "send_handshake FAILED!"
1715                         " (hd %p, ioc %p, mf %p, rc=%d) \n", ioc->name, hd,
1716                         ioc, mf, retval));
1717                         goto fail_out;
1718                 }
1719         }
1720
1721         if(mptscsih_tm_wait_for_completion(hd, timeout) == FAILED) {
1722                 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "task management request TIMED OUT!"
1723                         " (hd %p, ioc %p, mf %p) \n", ioc->name, hd,
1724                         ioc, mf));
1725                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Calling HardReset! \n",
1726                          ioc->name));
1727                 retval = mpt_HardResetHandler(ioc, CAN_SLEEP);
1728                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rc=%d \n",
1729                          ioc->name, retval));
1730                 goto fail_out;
1731         }
1732
1733         /*
1734          * Handle success case, see if theres a non-zero ioc_status.
1735          */
1736         if (hd->tm_iocstatus == MPI_IOCSTATUS_SUCCESS ||
1737            hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
1738            hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
1739                 retval = 0;
1740         else
1741                 retval = FAILED;
1742
1743         return retval;
1744
1745  fail_out:
1746
1747         /*
1748          * Free task management mf, and corresponding tm flags
1749          */
1750         mpt_free_msg_frame(ioc, mf);
1751         hd->tmPending = 0;
1752         hd->tmState = TM_STATE_NONE;
1753         return FAILED;
1754 }
1755
1756 static int
1757 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1758 {
1759         switch (ioc->bus_type) {
1760         case FC:
1761                 return 40;
1762         case SAS:
1763         case SPI:
1764         default:
1765                 return 10;
1766         }
1767 }
1768
1769 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1770 /**
1771  *      mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1772  *      @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1773  *
1774  *      (linux scsi_host_template.eh_abort_handler routine)
1775  *
1776  *      Returns SUCCESS or FAILED.
1777  **/
1778 int
1779 mptscsih_abort(struct scsi_cmnd * SCpnt)
1780 {
1781         MPT_SCSI_HOST   *hd;
1782         MPT_FRAME_HDR   *mf;
1783         u32              ctx2abort;
1784         int              scpnt_idx;
1785         int              retval;
1786         VirtDevice       *vdevice;
1787         ulong            sn = SCpnt->serial_number;
1788         MPT_ADAPTER     *ioc;
1789
1790         /* If we can't locate our host adapter structure, return FAILED status.
1791          */
1792         if ((hd = shost_priv(SCpnt->device->host)) == NULL) {
1793                 SCpnt->result = DID_RESET << 16;
1794                 SCpnt->scsi_done(SCpnt);
1795                 printk(KERN_ERR MYNAM ": task abort: "
1796                     "can't locate host! (sc=%p)\n", SCpnt);
1797                 return FAILED;
1798         }
1799
1800         ioc = hd->ioc;
1801         printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1802                ioc->name, SCpnt);
1803         scsi_print_command(SCpnt);
1804
1805         vdevice = SCpnt->device->hostdata;
1806         if (!vdevice || !vdevice->vtarget) {
1807                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1808                     "task abort: device has been deleted (sc=%p)\n",
1809                     ioc->name, SCpnt));
1810                 SCpnt->result = DID_NO_CONNECT << 16;
1811                 SCpnt->scsi_done(SCpnt);
1812                 retval = 0;
1813                 goto out;
1814         }
1815
1816         /* Task aborts are not supported for hidden raid components.
1817          */
1818         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1819                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1820                     "task abort: hidden raid component (sc=%p)\n",
1821                     ioc->name, SCpnt));
1822                 SCpnt->result = DID_RESET << 16;
1823                 retval = FAILED;
1824                 goto out;
1825         }
1826
1827         /* Find this command
1828          */
1829         if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) {
1830                 /* Cmd not found in ScsiLookup.
1831                  * Do OS callback.
1832                  */
1833                 SCpnt->result = DID_RESET << 16;
1834                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: "
1835                    "Command not in the active list! (sc=%p)\n", ioc->name,
1836                    SCpnt));
1837                 retval = 0;
1838                 goto out;
1839         }
1840
1841         if (hd->resetPending) {
1842                 retval = FAILED;
1843                 goto out;
1844         }
1845
1846         if (hd->timeouts < -1)
1847                 hd->timeouts++;
1848
1849         if (mpt_fwfault_debug)
1850                 mpt_halt_firmware(ioc);
1851
1852         /* Most important!  Set TaskMsgContext to SCpnt's MsgContext!
1853          * (the IO to be ABORT'd)
1854          *
1855          * NOTE: Since we do not byteswap MsgContext, we do not
1856          *       swap it here either.  It is an opaque cookie to
1857          *       the controller, so it does not matter. -DaveM
1858          */
1859         mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx);
1860         ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1861
1862         hd->abortSCpnt = SCpnt;
1863
1864         retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1865             vdevice->vtarget->channel, vdevice->vtarget->id, vdevice->lun,
1866             ctx2abort, mptscsih_get_tm_timeout(ioc));
1867
1868         if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx &&
1869             SCpnt->serial_number == sn)
1870                 retval = FAILED;
1871
1872  out:
1873         printk(MYIOC_s_INFO_FMT "task abort: %s (sc=%p)\n",
1874             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1875
1876         if (retval == 0)
1877                 return SUCCESS;
1878         else
1879                 return FAILED;
1880 }
1881
1882 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1883 /**
1884  *      mptscsih_dev_reset - Perform a SCSI TARGET_RESET!  new_eh variant
1885  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1886  *
1887  *      (linux scsi_host_template.eh_dev_reset_handler routine)
1888  *
1889  *      Returns SUCCESS or FAILED.
1890  **/
1891 int
1892 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1893 {
1894         MPT_SCSI_HOST   *hd;
1895         int              retval;
1896         VirtDevice       *vdevice;
1897         MPT_ADAPTER     *ioc;
1898
1899         /* If we can't locate our host adapter structure, return FAILED status.
1900          */
1901         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1902                 printk(KERN_ERR MYNAM ": target reset: "
1903                    "Can't locate host! (sc=%p)\n", SCpnt);
1904                 return FAILED;
1905         }
1906
1907         ioc = hd->ioc;
1908         printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1909                ioc->name, SCpnt);
1910         scsi_print_command(SCpnt);
1911
1912         if (hd->resetPending) {
1913                 retval = FAILED;
1914                 goto out;
1915         }
1916
1917         vdevice = SCpnt->device->hostdata;
1918         if (!vdevice || !vdevice->vtarget) {
1919                 retval = 0;
1920                 goto out;
1921         }
1922
1923         /* Target reset to hidden raid component is not supported
1924          */
1925         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1926                 retval = FAILED;
1927                 goto out;
1928         }
1929
1930         retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1931             vdevice->vtarget->channel, vdevice->vtarget->id, 0, 0,
1932             mptscsih_get_tm_timeout(ioc));
1933
1934  out:
1935         printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1936             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1937
1938         if (retval == 0)
1939                 return SUCCESS;
1940         else
1941                 return FAILED;
1942 }
1943
1944
1945 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1946 /**
1947  *      mptscsih_bus_reset - Perform a SCSI BUS_RESET!  new_eh variant
1948  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1949  *
1950  *      (linux scsi_host_template.eh_bus_reset_handler routine)
1951  *
1952  *      Returns SUCCESS or FAILED.
1953  **/
1954 int
1955 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1956 {
1957         MPT_SCSI_HOST   *hd;
1958         int              retval;
1959         VirtDevice       *vdevice;
1960         MPT_ADAPTER     *ioc;
1961
1962         /* If we can't locate our host adapter structure, return FAILED status.
1963          */
1964         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
1965                 printk(KERN_ERR MYNAM ": bus reset: "
1966                    "Can't locate host! (sc=%p)\n", SCpnt);
1967                 return FAILED;
1968         }
1969
1970         ioc = hd->ioc;
1971         printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1972                ioc->name, SCpnt);
1973         scsi_print_command(SCpnt);
1974
1975         if (hd->timeouts < -1)
1976                 hd->timeouts++;
1977
1978         vdevice = SCpnt->device->hostdata;
1979         retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1980             vdevice->vtarget->channel, 0, 0, 0, mptscsih_get_tm_timeout(ioc));
1981
1982         printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1983             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1984
1985         if (retval == 0)
1986                 return SUCCESS;
1987         else
1988                 return FAILED;
1989 }
1990
1991 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1992 /**
1993  *      mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
1994  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1995  *
1996  *      (linux scsi_host_template.eh_host_reset_handler routine)
1997  *
1998  *      Returns SUCCESS or FAILED.
1999  */
2000 int
2001 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
2002 {
2003         MPT_SCSI_HOST *  hd;
2004         int              retval;
2005         MPT_ADAPTER     *ioc;
2006
2007         /*  If we can't locate the host to reset, then we failed. */
2008         if ((hd = shost_priv(SCpnt->device->host)) == NULL){
2009                 printk(KERN_ERR MYNAM ": host reset: "
2010                     "Can't locate host! (sc=%p)\n", SCpnt);
2011                 return FAILED;
2012         }
2013
2014         /* make sure we have no outstanding commands at this stage */
2015         mptscsih_flush_running_cmds(hd);
2016
2017         ioc = hd->ioc;
2018         printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
2019             ioc->name, SCpnt);
2020
2021         /*  If our attempts to reset the host failed, then return a failed
2022          *  status.  The host will be taken off line by the SCSI mid-layer.
2023          */
2024         if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0) {
2025                 retval = FAILED;
2026         } else {
2027                 /*  Make sure TM pending is cleared and TM state is set to
2028                  *  NONE.
2029                  */
2030                 retval = 0;
2031                 hd->tmPending = 0;
2032                 hd->tmState = TM_STATE_NONE;
2033         }
2034
2035         printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
2036             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
2037
2038         return retval;
2039 }
2040
2041 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2042 /**
2043  *      mptscsih_tm_pending_wait - wait for pending task management request to complete
2044  *      @hd: Pointer to MPT host structure.
2045  *
2046  *      Returns {SUCCESS,FAILED}.
2047  */
2048 static int
2049 mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd)
2050 {
2051         unsigned long  flags;
2052         int            loop_count = 4 * 10;  /* Wait 10 seconds */
2053         int            status = FAILED;
2054         MPT_ADAPTER     *ioc = hd->ioc;
2055
2056         do {
2057                 spin_lock_irqsave(&ioc->FreeQlock, flags);
2058                 if (hd->tmState == TM_STATE_NONE) {
2059                         hd->tmState = TM_STATE_IN_PROGRESS;
2060                         hd->tmPending = 1;
2061                         spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2062                         status = SUCCESS;
2063                         break;
2064                 }
2065                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2066                 msleep(250);
2067         } while (--loop_count);
2068
2069         return status;
2070 }
2071
2072 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2073 /**
2074  *      mptscsih_tm_wait_for_completion - wait for completion of TM task
2075  *      @hd: Pointer to MPT host structure.
2076  *      @timeout: timeout value
2077  *
2078  *      Returns {SUCCESS,FAILED}.
2079  */
2080 static int
2081 mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout )
2082 {
2083         unsigned long  flags;
2084         int            loop_count = 4 * timeout;
2085         int            status = FAILED;
2086         MPT_ADAPTER     *ioc = hd->ioc;
2087
2088         do {
2089                 spin_lock_irqsave(&ioc->FreeQlock, flags);
2090                 if(hd->tmPending == 0) {
2091                         status = SUCCESS;
2092                         spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2093                         break;
2094                 }
2095                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2096                 msleep(250);
2097         } while (--loop_count);
2098
2099         return status;
2100 }
2101
2102 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2103 static void
2104 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2105 {
2106         char *desc;
2107
2108         switch (response_code) {
2109         case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2110                 desc = "The task completed.";
2111                 break;
2112         case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2113                 desc = "The IOC received an invalid frame status.";
2114                 break;
2115         case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2116                 desc = "The task type is not supported.";
2117                 break;
2118         case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2119                 desc = "The requested task failed.";
2120                 break;
2121         case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2122                 desc = "The task completed successfully.";
2123                 break;
2124         case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2125                 desc = "The LUN request is invalid.";
2126                 break;
2127         case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2128                 desc = "The task is in the IOC queue and has not been sent to target.";
2129                 break;
2130         default:
2131                 desc = "unknown";
2132                 break;
2133         }
2134         printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2135                 ioc->name, response_code, desc);
2136 }
2137
2138 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2139 /**
2140  *      mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2141  *      @ioc: Pointer to MPT_ADAPTER structure
2142  *      @mf: Pointer to SCSI task mgmt request frame
2143  *      @mr: Pointer to SCSI task mgmt reply frame
2144  *
2145  *      This routine is called from mptbase.c::mpt_interrupt() at the completion
2146  *      of any SCSI task management request.
2147  *      This routine is registered with the MPT (base) driver at driver
2148  *      load/init time via the mpt_register() API call.
2149  *
2150  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2151  **/
2152 int
2153 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2154 {
2155         SCSITaskMgmtReply_t     *pScsiTmReply;
2156         SCSITaskMgmt_t          *pScsiTmReq;
2157         MPT_SCSI_HOST           *hd;
2158         unsigned long            flags;
2159         u16                      iocstatus;
2160         u8                       tmType;
2161         u32                      termination_count;
2162
2163         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt completed (mf=%p,mr=%p)\n",
2164             ioc->name, mf, mr));
2165         if (!ioc->sh) {
2166                 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
2167                     "TaskMgmt Complete: NULL Scsi Host Ptr\n", ioc->name));
2168                 return 1;
2169         }
2170
2171         if (mr == NULL) {
2172                 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
2173                     "ERROR! TaskMgmt Reply: NULL Request %p\n", ioc->name, mf));
2174                 return 1;
2175         }
2176
2177         hd = shost_priv(ioc->sh);
2178         pScsiTmReply = (SCSITaskMgmtReply_t*)mr;
2179         pScsiTmReq = (SCSITaskMgmt_t*)mf;
2180         tmType = pScsiTmReq->TaskType;
2181         iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2182         termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
2183
2184         if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
2185             pScsiTmReply->ResponseCode)
2186                 mptscsih_taskmgmt_response_code(ioc,
2187                     pScsiTmReply->ResponseCode);
2188         DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
2189
2190 #ifdef CONFIG_FUSION_LOGGING
2191         if ((ioc->debug_level & MPT_DEBUG_REPLY) ||
2192                                 (ioc->debug_level & MPT_DEBUG_TM ))
2193                 printk("%s: ha=%d [%d:%d:0] task_type=0x%02X "
2194                         "iocstatus=0x%04X\n\tloginfo=0x%08X response_code=0x%02X "
2195                         "term_cmnds=%d\n", __func__, ioc->id, pScsiTmReply->Bus,
2196                          pScsiTmReply->TargetID, pScsiTmReq->TaskType,
2197                         le16_to_cpu(pScsiTmReply->IOCStatus),
2198                         le32_to_cpu(pScsiTmReply->IOCLogInfo),pScsiTmReply->ResponseCode,
2199                         le32_to_cpu(pScsiTmReply->TerminationCount));
2200 #endif
2201         if (!iocstatus) {
2202                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT " TaskMgmt SUCCESS\n", ioc->name));
2203                         hd->abortSCpnt = NULL;
2204                 goto out;
2205         }
2206
2207         /* Error?  (anything non-zero?) */
2208
2209         /* clear flags and continue.
2210          */
2211         switch (tmType) {
2212
2213         case MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2214                 if (termination_count == 1)
2215                         iocstatus = MPI_IOCSTATUS_SCSI_TASK_TERMINATED;
2216                 hd->abortSCpnt = NULL;
2217                 break;
2218
2219         case MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS:
2220
2221                 /* If an internal command is present
2222                  * or the TM failed - reload the FW.
2223                  * FC FW may respond FAILED to an ABORT
2224                  */
2225                 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED ||
2226                     hd->cmdPtr)
2227                         if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0)
2228                                 printk(MYIOC_s_WARN_FMT " Firmware Reload FAILED!!\n", ioc->name);
2229                 break;
2230
2231         case MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2232         default:
2233                 break;
2234         }
2235
2236  out:
2237         spin_lock_irqsave(&ioc->FreeQlock, flags);
2238         hd->tmPending = 0;
2239         hd->tmState = TM_STATE_NONE;
2240         hd->tm_iocstatus = iocstatus;
2241         spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2242
2243         return 1;
2244 }
2245
2246 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2247 /*
2248  *      This is anyones guess quite frankly.
2249  */
2250 int
2251 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2252                 sector_t capacity, int geom[])
2253 {
2254         int             heads;
2255         int             sectors;
2256         sector_t        cylinders;
2257         ulong           dummy;
2258
2259         heads = 64;
2260         sectors = 32;
2261
2262         dummy = heads * sectors;
2263         cylinders = capacity;
2264         sector_div(cylinders,dummy);
2265
2266         /*
2267          * Handle extended translation size for logical drives
2268          * > 1Gb
2269          */
2270         if ((ulong)capacity >= 0x200000) {
2271                 heads = 255;
2272                 sectors = 63;
2273                 dummy = heads * sectors;
2274                 cylinders = capacity;
2275                 sector_div(cylinders,dummy);
2276         }
2277
2278         /* return result */
2279         geom[0] = heads;
2280         geom[1] = sectors;
2281         geom[2] = cylinders;
2282
2283         return 0;
2284 }
2285
2286 /* Search IOC page 3 to determine if this is hidden physical disk
2287  *
2288  */
2289 int
2290 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2291 {
2292         struct inactive_raid_component_info *component_info;
2293         int i;
2294         int rc = 0;
2295
2296         if (!ioc->raid_data.pIocPg3)
2297                 goto out;
2298         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2299                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2300                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2301                         rc = 1;
2302                         goto out;
2303                 }
2304         }
2305
2306         /*
2307          * Check inactive list for matching phys disks
2308          */
2309         if (list_empty(&ioc->raid_data.inactive_list))
2310                 goto out;
2311
2312         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2313         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2314             list) {
2315                 if ((component_info->d.PhysDiskID == id) &&
2316                     (component_info->d.PhysDiskBus == channel))
2317                         rc = 1;
2318         }
2319         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2320
2321  out:
2322         return rc;
2323 }
2324 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2325
2326 u8
2327 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2328 {
2329         struct inactive_raid_component_info *component_info;
2330         int i;
2331         int rc = -ENXIO;
2332
2333         if (!ioc->raid_data.pIocPg3)
2334                 goto out;
2335         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2336                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2337                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2338                         rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2339                         goto out;
2340                 }
2341         }
2342
2343         /*
2344          * Check inactive list for matching phys disks
2345          */
2346         if (list_empty(&ioc->raid_data.inactive_list))
2347                 goto out;
2348
2349         mutex_lock(&ioc->raid_data.inactive_list_mutex);
2350         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2351             list) {
2352                 if ((component_info->d.PhysDiskID == id) &&
2353                     (component_info->d.PhysDiskBus == channel))
2354                         rc = component_info->d.PhysDiskNum;
2355         }
2356         mutex_unlock(&ioc->raid_data.inactive_list_mutex);
2357
2358  out:
2359         return rc;
2360 }
2361 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2362
2363 /*
2364  *      OS entry point to allow for host driver to free allocated memory
2365  *      Called if no device present or device being unloaded
2366  */
2367 void
2368 mptscsih_slave_destroy(struct scsi_device *sdev)
2369 {
2370         struct Scsi_Host        *host = sdev->host;
2371         MPT_SCSI_HOST           *hd = shost_priv(host);
2372         VirtTarget              *vtarget;
2373         VirtDevice              *vdevice;
2374         struct scsi_target      *starget;
2375
2376         starget = scsi_target(sdev);
2377         vtarget = starget->hostdata;
2378         vdevice = sdev->hostdata;
2379
2380         mptscsih_search_running_cmds(hd, vdevice);
2381         vtarget->num_luns--;
2382         mptscsih_synchronize_cache(hd, vdevice);
2383         kfree(vdevice);
2384         sdev->hostdata = NULL;
2385 }
2386
2387 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2388 /*
2389  *      mptscsih_change_queue_depth - This function will set a devices queue depth
2390  *      @sdev: per scsi_device pointer
2391  *      @qdepth: requested queue depth
2392  *
2393  *      Adding support for new 'change_queue_depth' api.
2394 */
2395 int
2396 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
2397 {
2398         MPT_SCSI_HOST           *hd = shost_priv(sdev->host);
2399         VirtTarget              *vtarget;
2400         struct scsi_target      *starget;
2401         int                     max_depth;
2402         int                     tagged;
2403         MPT_ADAPTER             *ioc = hd->ioc;
2404
2405         starget = scsi_target(sdev);
2406         vtarget = starget->hostdata;
2407
2408         if (ioc->bus_type == SPI) {
2409                 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2410                         max_depth = 1;
2411                 else if (sdev->type == TYPE_DISK &&
2412                          vtarget->minSyncFactor <= MPT_ULTRA160)
2413                         max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2414                 else
2415                         max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2416         } else
2417                 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2418
2419         if (qdepth > max_depth)
2420                 qdepth = max_depth;
2421         if (qdepth == 1)
2422                 tagged = 0;
2423         else
2424                 tagged = MSG_SIMPLE_TAG;
2425
2426         scsi_adjust_queue_depth(sdev, tagged, qdepth);
2427         return sdev->queue_depth;
2428 }
2429
2430 /*
2431  *      OS entry point to adjust the queue_depths on a per-device basis.
2432  *      Called once per device the bus scan. Use it to force the queue_depth
2433  *      member to 1 if a device does not support Q tags.
2434  *      Return non-zero if fails.
2435  */
2436 int
2437 mptscsih_slave_configure(struct scsi_device *sdev)
2438 {
2439         struct Scsi_Host        *sh = sdev->host;
2440         VirtTarget              *vtarget;
2441         VirtDevice              *vdevice;
2442         struct scsi_target      *starget;
2443         MPT_SCSI_HOST           *hd = shost_priv(sh);
2444         MPT_ADAPTER             *ioc = hd->ioc;
2445
2446         starget = scsi_target(sdev);
2447         vtarget = starget->hostdata;
2448         vdevice = sdev->hostdata;
2449
2450         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2451                 "device @ %p, channel=%d, id=%d, lun=%d\n",
2452                 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2453         if (ioc->bus_type == SPI)
2454                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2455                     "sdtr %d wdtr %d ppr %d inq length=%d\n",
2456                     ioc->name, sdev->sdtr, sdev->wdtr,
2457                     sdev->ppr, sdev->inquiry_len));
2458
2459         vdevice->configured_lun = 1;
2460         mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
2461
2462         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2463                 "Queue depth=%d, tflags=%x\n",
2464                 ioc->name, sdev->queue_depth, vtarget->tflags));
2465
2466         if (ioc->bus_type == SPI)
2467                 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2468                     "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2469                     ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2470                     vtarget->minSyncFactor));
2471
2472         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2473                 "tagged %d, simple %d, ordered %d\n",
2474                 ioc->name,sdev->tagged_supported, sdev->simple_tags,
2475                 sdev->ordered_tags));
2476
2477         return 0;
2478 }
2479
2480 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2481 /*
2482  *  Private routines...
2483  */
2484
2485 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2486 /* Utility function to copy sense data from the scsi_cmnd buffer
2487  * to the FC and SCSI target structures.
2488  *
2489  */
2490 static void
2491 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2492 {
2493         VirtDevice      *vdevice;
2494         SCSIIORequest_t *pReq;
2495         u32              sense_count = le32_to_cpu(pScsiReply->SenseCount);
2496         MPT_ADAPTER     *ioc = hd->ioc;
2497
2498         /* Get target structure
2499          */
2500         pReq = (SCSIIORequest_t *) mf;
2501         vdevice = sc->device->hostdata;
2502
2503         if (sense_count) {
2504                 u8 *sense_data;
2505                 int req_index;
2506
2507                 /* Copy the sense received into the scsi command block. */
2508                 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2509                 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2510                 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2511
2512                 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2513                  */
2514                 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2515                         if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) {
2516                                 int idx;
2517
2518                                 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2519                                 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2520                                 ioc->events[idx].eventContext = ioc->eventContext;
2521
2522                                 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2523                                         (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2524                                         (sc->device->channel << 8) | sc->device->id;
2525
2526                                 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2527
2528                                 ioc->eventContext++;
2529                                 if (ioc->pcidev->vendor ==
2530                                     PCI_VENDOR_ID_IBM) {
2531                                         mptscsih_issue_sep_command(ioc,
2532                                             vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2533                                         vdevice->vtarget->tflags |=
2534                                             MPT_TARGET_FLAGS_LED_ON;
2535                                 }
2536                         }
2537                 }
2538         } else {
2539                 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2540                                 ioc->name));
2541         }
2542 }
2543
2544 /**
2545  * mptscsih_get_scsi_lookup
2546  * @ioc: Pointer to MPT_ADAPTER structure
2547  * @i: index into the array
2548  *
2549  * retrieves scmd entry from ScsiLookup[] array list
2550  *
2551  * Returns the scsi_cmd pointer
2552  **/
2553 static struct scsi_cmnd *
2554 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
2555 {
2556         unsigned long   flags;
2557         struct scsi_cmnd *scmd;
2558
2559         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2560         scmd = ioc->ScsiLookup[i];
2561         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2562
2563         return scmd;
2564 }
2565
2566 /**
2567  * mptscsih_getclear_scsi_lookup
2568  * @ioc: Pointer to MPT_ADAPTER structure
2569  * @i: index into the array
2570  *
2571  * retrieves and clears scmd entry from ScsiLookup[] array list
2572  *
2573  * Returns the scsi_cmd pointer
2574  **/
2575 static struct scsi_cmnd *
2576 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i)
2577 {
2578         unsigned long   flags;
2579         struct scsi_cmnd *scmd;
2580
2581         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2582         scmd = ioc->ScsiLookup[i];
2583         ioc->ScsiLookup[i] = NULL;
2584         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2585
2586         return scmd;
2587 }
2588
2589 /**
2590  * mptscsih_set_scsi_lookup
2591  *
2592  * writes a scmd entry into the ScsiLookup[] array list
2593  *
2594  * @ioc: Pointer to MPT_ADAPTER structure
2595  * @i: index into the array
2596  * @scmd: scsi_cmnd pointer
2597  *
2598  **/
2599 static void
2600 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd)
2601 {
2602         unsigned long   flags;
2603
2604         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2605         ioc->ScsiLookup[i] = scmd;
2606         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2607 }
2608
2609 /**
2610  * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list
2611  * @ioc: Pointer to MPT_ADAPTER structure
2612  * @sc: scsi_cmnd pointer
2613  */
2614 static int
2615 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc)
2616 {
2617         unsigned long   flags;
2618         int i, index=-1;
2619
2620         spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
2621         for (i = 0; i < ioc->req_depth; i++) {
2622                 if (ioc->ScsiLookup[i] == sc) {
2623                         index = i;
2624                         goto out;
2625                 }
2626         }
2627
2628  out:
2629         spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
2630         return index;
2631 }
2632
2633 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2634 int
2635 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2636 {
2637         MPT_SCSI_HOST   *hd;
2638         unsigned long    flags;
2639
2640         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2641             ": IOC %s_reset routed to SCSI host driver!\n",
2642             ioc->name, reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
2643             reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
2644
2645         /* If a FW reload request arrives after base installed but
2646          * before all scsi hosts have been attached, then an alt_ioc
2647          * may have a NULL sh pointer.
2648          */
2649         if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
2650                 return 0;
2651         else
2652                 hd = shost_priv(ioc->sh);
2653
2654         if (reset_phase == MPT_IOC_SETUP_RESET) {
2655                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Setup-Diag Reset\n", ioc->name));
2656
2657                 /* Clean Up:
2658                  * 1. Set Hard Reset Pending Flag
2659                  * All new commands go to doneQ
2660                  */
2661                 hd->resetPending = 1;
2662
2663         } else if (reset_phase == MPT_IOC_PRE_RESET) {
2664                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Pre-Diag Reset\n", ioc->name));
2665
2666                 /* 2. Flush running commands
2667                  *      Clean ScsiLookup (and associated memory)
2668                  *      AND clean mytaskQ
2669                  */
2670
2671                 /* 2b. Reply to OS all known outstanding I/O commands.
2672                  */
2673                 mptscsih_flush_running_cmds(hd);
2674
2675                 /* 2c. If there was an internal command that
2676                  * has not completed, configuration or io request,
2677                  * free these resources.
2678                  */
2679                 if (hd->cmdPtr) {
2680                         del_timer(&hd->timer);
2681                         mpt_free_msg_frame(ioc, hd->cmdPtr);
2682                 }
2683
2684                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Pre-Reset complete.\n", ioc->name));
2685
2686         } else {
2687                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Post-Diag Reset\n", ioc->name));
2688
2689                 /* Once a FW reload begins, all new OS commands are
2690                  * redirected to the doneQ w/ a reset status.
2691                  * Init all control structures.
2692                  */
2693
2694                 /* 2. Chain Buffer initialization
2695                  */
2696
2697                 /* 4. Renegotiate to all devices, if SPI
2698                  */
2699
2700                 /* 5. Enable new commands to be posted
2701                  */
2702                 spin_lock_irqsave(&ioc->FreeQlock, flags);
2703                 hd->tmPending = 0;
2704                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2705                 hd->resetPending = 0;
2706                 hd->tmState = TM_STATE_NONE;
2707
2708                 /* 6. If there was an internal command,
2709                  * wake this process up.
2710                  */
2711                 if (hd->cmdPtr) {
2712                         /*
2713                          * Wake up the original calling thread
2714                          */
2715                         hd->pLocal = &hd->localReply;
2716                         hd->pLocal->completion = MPT_SCANDV_DID_RESET;
2717                         hd->scandv_wait_done = 1;
2718                         wake_up(&hd->scandv_waitq);
2719                         hd->cmdPtr = NULL;
2720                 }
2721
2722                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Post-Reset complete.\n", ioc->name));
2723
2724         }
2725
2726         return 1;               /* currently means nothing really */
2727 }
2728
2729 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2730 int
2731 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2732 {
2733         MPT_SCSI_HOST *hd;
2734         u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2735
2736         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
2737                         ioc->name, event));
2738
2739         if (ioc->sh == NULL ||
2740                 ((hd = shost_priv(ioc->sh)) == NULL))
2741                 return 1;
2742
2743         switch (event) {
2744         case MPI_EVENT_UNIT_ATTENTION:                  /* 03 */
2745                 /* FIXME! */
2746                 break;
2747         case MPI_EVENT_IOC_BUS_RESET:                   /* 04 */
2748         case MPI_EVENT_EXT_BUS_RESET:                   /* 05 */
2749                 if (hd && (ioc->bus_type == SPI) && (hd->soft_resets < -1))
2750                         hd->soft_resets++;
2751                 break;
2752         case MPI_EVENT_LOGOUT:                          /* 09 */
2753                 /* FIXME! */
2754                 break;
2755
2756         case MPI_EVENT_RESCAN:                          /* 06 */
2757                 break;
2758
2759                 /*
2760                  *  CHECKME! Don't think we need to do
2761                  *  anything for these, but...
2762                  */
2763         case MPI_EVENT_LINK_STATUS_CHANGE:              /* 07 */
2764         case MPI_EVENT_LOOP_STATE_CHANGE:               /* 08 */
2765                 /*
2766                  *  CHECKME!  Falling thru...
2767                  */
2768                 break;
2769
2770         case MPI_EVENT_INTEGRATED_RAID:                 /* 0B */
2771                 break;
2772
2773         case MPI_EVENT_NONE:                            /* 00 */
2774         case MPI_EVENT_LOG_DATA:                        /* 01 */
2775         case MPI_EVENT_STATE_CHANGE:                    /* 02 */
2776         case MPI_EVENT_EVENT_CHANGE:                    /* 0A */
2777         default:
2778                 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": Ignoring event (=%02Xh)\n",
2779                     ioc->name, event));
2780                 break;
2781         }
2782
2783         return 1;               /* currently means nothing really */
2784 }
2785
2786 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2787 /*
2788  *  Bus Scan and Domain Validation functionality ...
2789  */
2790
2791 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2792 /*
2793  *      mptscsih_scandv_complete - Scan and DV callback routine registered
2794  *      to Fustion MPT (base) driver.
2795  *
2796  *      @ioc: Pointer to MPT_ADAPTER structure
2797  *      @mf: Pointer to original MPT request frame
2798  *      @mr: Pointer to MPT reply frame (NULL if TurboReply)
2799  *
2800  *      This routine is called from mpt.c::mpt_interrupt() at the completion
2801  *      of any SCSI IO request.
2802  *      This routine is registered with the Fusion MPT (base) driver at driver
2803  *      load/init time via the mpt_register() API call.
2804  *
2805  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2806  *
2807  *      Remark: Sets a completion code and (possibly) saves sense data
2808  *      in the IOC member localReply structure.
2809  *      Used ONLY for DV and other internal commands.
2810  */
2811 int
2812 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2813 {
2814         MPT_SCSI_HOST   *hd;
2815         SCSIIORequest_t *pReq;
2816         int              completionCode;
2817         u16              req_idx;
2818
2819         hd = shost_priv(ioc->sh);
2820
2821         if ((mf == NULL) ||
2822             (mf >= MPT_INDEX_2_MFPTR(ioc, ioc->req_depth))) {
2823                 printk(MYIOC_s_ERR_FMT
2824                         "ScanDvComplete, %s req frame ptr! (=%p)\n",
2825                                 ioc->name, mf?"BAD":"NULL", (void *) mf);
2826                 goto wakeup;
2827         }
2828
2829         del_timer(&hd->timer);
2830         req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2831         mptscsih_set_scsi_lookup(ioc, req_idx, NULL);
2832         pReq = (SCSIIORequest_t *) mf;
2833
2834         if (mf != hd->cmdPtr) {
2835                 printk(MYIOC_s_WARN_FMT "ScanDvComplete (mf=%p, cmdPtr=%p, idx=%d)\n",
2836                                 ioc->name, (void *)mf, (void *) hd->cmdPtr, req_idx);
2837         }
2838         hd->cmdPtr = NULL;
2839
2840         ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScanDvComplete (mf=%p,mr=%p,idx=%d)\n",
2841                         ioc->name, mf, mr, req_idx));
2842
2843         hd->pLocal = &hd->localReply;
2844         hd->pLocal->scsiStatus = 0;
2845
2846         /* If target struct exists, clear sense valid flag.
2847          */
2848         if (mr == NULL) {
2849                 completionCode = MPT_SCANDV_GOOD;
2850         } else {
2851                 SCSIIOReply_t   *pReply;
2852                 u16              status;
2853                 u8               scsi_status;
2854
2855                 pReply = (SCSIIOReply_t *) mr;
2856
2857                 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2858                 scsi_status = pReply->SCSIStatus;
2859
2860
2861                 switch(status) {
2862
2863                 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
2864                         completionCode = MPT_SCANDV_SELECTION_TIMEOUT;
2865                         break;
2866
2867                 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
2868                 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
2869                 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
2870                 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
2871                         completionCode = MPT_SCANDV_DID_RESET;
2872                         break;
2873
2874                 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
2875                 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
2876                 case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
2877                         if (pReply->Function == MPI_FUNCTION_CONFIG) {
2878                                 ConfigReply_t *pr = (ConfigReply_t *)mr;
2879                                 completionCode = MPT_SCANDV_GOOD;
2880                                 hd->pLocal->header.PageVersion = pr->Header.PageVersion;
2881                                 hd->pLocal->header.PageLength = pr->Header.PageLength;
2882                                 hd->pLocal->header.PageNumber = pr->Header.PageNumber;
2883                                 hd->pLocal->header.PageType = pr->Header.PageType;
2884
2885                         } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2886                                 /* If the RAID Volume request is successful,
2887                                  * return GOOD, else indicate that
2888                                  * some type of error occurred.
2889                                  */
2890                                 MpiRaidActionReply_t    *pr = (MpiRaidActionReply_t *)mr;
2891                                 if (le16_to_cpu(pr->ActionStatus) == MPI_RAID_ACTION_ASTATUS_SUCCESS)
2892                                         completionCode = MPT_SCANDV_GOOD;
2893                                 else
2894                                         completionCode = MPT_SCANDV_SOME_ERROR;
2895                                 memcpy(hd->pLocal->sense, pr, sizeof(hd->pLocal->sense));
2896
2897                         } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
2898                                 u8              *sense_data;
2899                                 int              sz;
2900
2901                                 /* save sense data in global structure
2902                                  */
2903                                 completionCode = MPT_SCANDV_SENSE;
2904                                 hd->pLocal->scsiStatus = scsi_status;
2905                                 sense_data = ((u8 *)ioc->sense_buf_pool +
2906                                         (req_idx * MPT_SENSE_BUFFER_ALLOC));
2907
2908                                 sz = min_t(int, pReq->SenseBufferLength,
2909                                                         SCSI_STD_SENSE_BYTES);
2910                                 memcpy(hd->pLocal->sense, sense_data, sz);
2911
2912                                 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "  Check Condition, sense ptr %p\n",
2913                                     ioc->name, sense_data));
2914                         } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2915                                 if (pReq->CDB[0] == INQUIRY)
2916                                         completionCode = MPT_SCANDV_ISSUE_SENSE;
2917                                 else
2918                                         completionCode = MPT_SCANDV_DID_RESET;
2919                         }
2920                         else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2921                                 completionCode = MPT_SCANDV_DID_RESET;
2922                         else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2923                                 completionCode = MPT_SCANDV_DID_RESET;
2924                         else {
2925                                 completionCode = MPT_SCANDV_GOOD;
2926                                 hd->pLocal->scsiStatus = scsi_status;
2927                         }
2928                         break;
2929
2930                 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
2931                         if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2932                                 completionCode = MPT_SCANDV_DID_RESET;
2933                         else
2934                                 completionCode = MPT_SCANDV_SOME_ERROR;
2935                         break;
2936
2937                 default:
2938                         completionCode = MPT_SCANDV_SOME_ERROR;
2939                         break;
2940
2941                 }       /* switch(status) */
2942
2943         } /* end of address reply case */
2944
2945         hd->pLocal->completion = completionCode;
2946
2947         /* MF and RF are freed in mpt_interrupt
2948          */
2949 wakeup:
2950         /* Free Chain buffers (will never chain) in scan or dv */
2951         //mptscsih_freeChainBuffers(ioc, req_idx);
2952
2953         /*
2954          * Wake up the original calling thread
2955          */
2956         hd->scandv_wait_done = 1;
2957         wake_up(&hd->scandv_waitq);
2958
2959         return 1;
2960 }
2961
2962 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2963 /*      mptscsih_timer_expired - Call back for timer process.
2964  *      Used only for dv functionality.
2965  *      @data: Pointer to MPT_SCSI_HOST recast as an unsigned long
2966  *
2967  */
2968 void
2969 mptscsih_timer_expired(unsigned long data)
2970 {
2971         MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *) data;
2972         MPT_ADAPTER     *ioc = hd->ioc;
2973
2974         ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Timer Expired! Cmd %p\n", ioc->name, hd->cmdPtr));
2975
2976         if (hd->cmdPtr) {
2977                 MPIHeader_t *cmd = (MPIHeader_t *)hd->cmdPtr;
2978
2979                 if (cmd->Function == MPI_FUNCTION_SCSI_IO_REQUEST) {
2980                         /* Desire to issue a task management request here.
2981                          * TM requests MUST be single threaded.
2982                          * If old eh code and no TM current, issue request.
2983                          * If new eh code, do nothing. Wait for OS cmd timeout
2984                          *      for bus reset.
2985                          */
2986                 } else {
2987                         /* Perform a FW reload */
2988                         if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0) {
2989                                 printk(MYIOC_s_WARN_FMT "Firmware Reload FAILED!\n", ioc->name);
2990                         }
2991                 }
2992         } else {
2993                 /* This should NEVER happen */
2994                 printk(MYIOC_s_WARN_FMT "Null cmdPtr!!!!\n", ioc->name);
2995         }
2996
2997         /* No more processing.
2998          * TM call will generate an interrupt for SCSI TM Management.
2999          * The FW will reply to all outstanding commands, callback will finish cleanup.
3000          * Hard reset clean-up will free all resources.
3001          */
3002         ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Timer Expired Complete!\n", ioc->name));
3003
3004         return;
3005 }
3006
3007
3008 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3009 /**
3010  *      mptscsih_do_cmd - Do internal command.
3011  *      @hd: MPT_SCSI_HOST pointer
3012  *      @io: INTERNAL_CMD pointer.
3013  *
3014  *      Issue the specified internally generated command and do command
3015  *      specific cleanup. For bus scan / DV only.
3016  *      NOTES: If command is Inquiry and status is good,
3017  *      initialize a target structure, save the data
3018  *
3019  *      Remark: Single threaded access only.
3020  *
3021  *      Return:
3022  *              < 0 if an illegal command or no resources
3023  *
3024  *                 0 if good
3025  *
3026  *               > 0 if command complete but some type of completion error.
3027  */
3028 static int
3029 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
3030 {
3031         MPT_FRAME_HDR   *mf;
3032         SCSIIORequest_t *pScsiReq;
3033         SCSIIORequest_t  ReqCopy;
3034         int              my_idx, ii, dir;
3035         int              rc, cmdTimeout;
3036         int             in_isr;
3037         char             cmdLen;
3038         char             CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
3039         char             cmd = io->cmd;
3040         MPT_ADAPTER     *ioc = hd->ioc;
3041
3042         in_isr = in_interrupt();
3043         if (in_isr) {
3044                 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Internal SCSI IO request not allowed in ISR context!\n",
3045                                         ioc->name));
3046                 return -EPERM;
3047         }
3048
3049
3050         /* Set command specific information
3051          */
3052         switch (cmd) {
3053         case INQUIRY:
3054                 cmdLen = 6;
3055                 dir = MPI_SCSIIO_CONTROL_READ;
3056                 CDB[0] = cmd;
3057                 CDB[4] = io->size;
3058                 cmdTimeout = 10;
3059                 break;
3060
3061         case TEST_UNIT_READY:
3062                 cmdLen = 6;
3063                 dir = MPI_SCSIIO_CONTROL_READ;
3064                 cmdTimeout = 10;
3065                 break;
3066
3067         case START_STOP:
3068                 cmdLen = 6;
3069                 dir = MPI_SCSIIO_CONTROL_READ;
3070                 CDB[0] = cmd;
3071                 CDB[4] = 1;     /*Spin up the disk */
3072                 cmdTimeout = 15;
3073                 break;
3074
3075         case REQUEST_SENSE:
3076                 cmdLen = 6;
3077                 CDB[0] = cmd;
3078                 CDB[4] = io->size;
3079                 dir = MPI_SCSIIO_CONTROL_READ;
3080                 cmdTimeout = 10;
3081                 break;
3082
3083         case READ_BUFFER:
3084                 cmdLen = 10;
3085                 dir = MPI_SCSIIO_CONTROL_READ;
3086                 CDB[0] = cmd;
3087                 if (io->flags & MPT_ICFLAG_ECHO) {
3088                         CDB[1] = 0x0A;
3089                 } else {
3090                         CDB[1] = 0x02;
3091                 }
3092
3093                 if (io->flags & MPT_ICFLAG_BUF_CAP) {
3094                         CDB[1] |= 0x01;
3095                 }
3096                 CDB[6] = (io->size >> 16) & 0xFF;
3097                 CDB[7] = (io->size >>  8) & 0xFF;
3098                 CDB[8] = io->size & 0xFF;
3099                 cmdTimeout = 10;
3100                 break;
3101
3102         case WRITE_BUFFER:
3103                 cmdLen = 10;
3104                 dir = MPI_SCSIIO_CONTROL_WRITE;
3105                 CDB[0] = cmd;
3106                 if (io->flags & MPT_ICFLAG_ECHO) {
3107                         CDB[1] = 0x0A;
3108                 } else {
3109                         CDB[1] = 0x02;
3110                 }
3111                 CDB[6] = (io->size >> 16) & 0xFF;
3112                 CDB[7] = (io->size >>  8) & 0xFF;
3113                 CDB[8] = io->size & 0xFF;
3114                 cmdTimeout = 10;
3115                 break;
3116
3117         case RESERVE:
3118                 cmdLen = 6;
3119                 dir = MPI_SCSIIO_CONTROL_READ;
3120                 CDB[0] = cmd;
3121                 cmdTimeout = 10;
3122                 break;
3123
3124         case RELEASE:
3125                 cmdLen = 6;
3126                 dir = MPI_SCSIIO_CONTROL_READ;
3127                 CDB[0] = cmd;
3128                 cmdTimeout = 10;
3129                 break;
3130
3131         case SYNCHRONIZE_CACHE:
3132                 cmdLen = 10;
3133                 dir = MPI_SCSIIO_CONTROL_READ;
3134                 CDB[0] = cmd;
3135 //              CDB[1] = 0x02;  /* set immediate bit */
3136                 cmdTimeout = 10;
3137                 break;
3138
3139         default:
3140                 /* Error Case */
3141                 return -EFAULT;
3142         }
3143
3144         /* Get and Populate a free Frame
3145          */
3146         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
3147                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "No msg frames!\n",
3148                     ioc->name));
3149                 return -EBUSY;
3150         }
3151
3152         pScsiReq = (SCSIIORequest_t *) mf;
3153
3154         /* Get the request index */
3155         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
3156         ADD_INDEX_LOG(my_idx); /* for debug */
3157
3158         if (io->flags & MPT_ICFLAG_PHYS_DISK) {
3159                 pScsiReq->TargetID = io->physDiskNum;
3160                 pScsiReq->Bus = 0;
3161                 pScsiReq->ChainOffset = 0;
3162                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3163         } else {
3164                 pScsiReq->TargetID = io->id;
3165                 pScsiReq->Bus = io->channel;
3166                 pScsiReq->ChainOffset = 0;
3167                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
3168         }
3169
3170         pScsiReq->CDBLength = cmdLen;
3171         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
3172
3173         pScsiReq->Reserved = 0;
3174
3175         pScsiReq->MsgFlags = mpt_msg_flags();
3176         /* MsgContext set in mpt_get_msg_fram call  */
3177
3178         int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
3179
3180         if (io->flags & MPT_ICFLAG_TAGGED_CMD)
3181                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
3182         else
3183                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3184
3185         if (cmd == REQUEST_SENSE) {
3186                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3187                 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Untagged! 0x%2x\n",
3188                         ioc->name, cmd));
3189         }
3190
3191         for (ii=0; ii < 16; ii++)
3192                 pScsiReq->CDB[ii] = CDB[ii];
3193
3194         pScsiReq->DataLength = cpu_to_le32(io->size);
3195         pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma
3196                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
3197
3198         ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Sending Command 0x%x for (%d:%d:%d)\n",
3199                         ioc->name, cmd, io->channel, io->id, io->lun));
3200
3201         if (dir == MPI_SCSIIO_CONTROL_READ) {
3202                 mpt_add_sge((char *) &pScsiReq->SGL,
3203                         MPT_SGE_FLAGS_SSIMPLE_READ | io->size,
3204                         io->data_dma);
3205         } else {
3206                 mpt_add_sge((char *) &pScsiReq->SGL,
3207                         MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size,
3208                         io->data_dma);
3209         }
3210
3211         /* The ISR will free the request frame, but we need
3212          * the information to initialize the target. Duplicate.
3213          */
3214         memcpy(&ReqCopy, pScsiReq, sizeof(SCSIIORequest_t));
3215
3216         /* Issue this command after:
3217          *      finish init
3218          *      add timer
3219          * Wait until the reply has been received
3220          *  ScsiScanDvCtx callback function will
3221          *      set hd->pLocal;
3222          *      set scandv_wait_done and call wake_up
3223          */
3224         hd->pLocal = NULL;
3225         hd->timer.expires = jiffies + HZ*cmdTimeout;
3226         hd->scandv_wait_done = 0;
3227
3228         /* Save cmd pointer, for resource free if timeout or
3229          * FW reload occurs
3230          */
3231         hd->cmdPtr = mf;
3232
3233         add_timer(&hd->timer);
3234         mpt_put_msg_frame(ioc->InternalCtx, ioc, mf);
3235         wait_event(hd->scandv_waitq, hd->scandv_wait_done);
3236
3237         if (hd->pLocal) {
3238                 rc = hd->pLocal->completion;
3239                 hd->pLocal->skip = 0;
3240
3241                 /* Always set fatal error codes in some cases.
3242                  */
3243                 if (rc == MPT_SCANDV_SELECTION_TIMEOUT)
3244                         rc = -ENXIO;
3245                 else if (rc == MPT_SCANDV_SOME_ERROR)
3246                         rc =  -rc;
3247         } else {
3248                 rc = -EFAULT;
3249                 /* This should never happen. */
3250                 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "_do_cmd: Null pLocal!!!\n",
3251                                 ioc->name));
3252         }
3253
3254         return rc;
3255 }
3256
3257 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3258 /**
3259  *      mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3260  *      @hd: Pointer to a SCSI HOST structure
3261  *      @vdevice: virtual target device
3262  *
3263  *      Uses the ISR, but with special processing.
3264  *      MUST be single-threaded.
3265  *
3266  */
3267 static void
3268 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3269 {
3270         INTERNAL_CMD             iocmd;
3271
3272         /* Ignore hidden raid components, this is handled when the command
3273          * is sent to the volume
3274          */
3275         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3276                 return;
3277
3278         if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3279             !vdevice->configured_lun)
3280                 return;
3281
3282         /* Following parameters will not change
3283          * in this routine.
3284          */
3285         iocmd.cmd = SYNCHRONIZE_CACHE;
3286         iocmd.flags = 0;
3287         iocmd.physDiskNum = -1;
3288         iocmd.data = NULL;
3289         iocmd.data_dma = -1;
3290         iocmd.size = 0;
3291         iocmd.rsvd = iocmd.rsvd2 = 0;
3292         iocmd.channel = vdevice->vtarget->channel;
3293         iocmd.id = vdevice->vtarget->id;
3294         iocmd.lun = vdevice->lun;
3295
3296         mptscsih_do_cmd(hd, &iocmd);
3297 }
3298
3299 static ssize_t
3300 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
3301                          char *buf)
3302 {
3303         struct Scsi_Host *host = class_to_shost(dev);
3304         MPT_SCSI_HOST   *hd = shost_priv(host);
3305         MPT_ADAPTER *ioc = hd->ioc;
3306
3307         return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3308             (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3309             (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3310             (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3311             ioc->facts.FWVersion.Word & 0x000000FF);
3312 }
3313 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3314
3315 static ssize_t
3316 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
3317                            char *buf)
3318 {
3319         struct Scsi_Host *host = class_to_shost(dev);
3320         MPT_SCSI_HOST   *hd = shost_priv(host);
3321         MPT_ADAPTER *ioc = hd->ioc;
3322
3323         return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3324             (ioc->biosVersion & 0xFF000000) >> 24,
3325             (ioc->biosVersion & 0x00FF0000) >> 16,
3326             (ioc->biosVersion & 0x0000FF00) >> 8,
3327             ioc->biosVersion & 0x000000FF);
3328 }
3329 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3330
3331 static ssize_t
3332 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
3333                           char *buf)
3334 {
3335         struct Scsi_Host *host = class_to_shost(dev);
3336         MPT_SCSI_HOST   *hd = shost_priv(host);
3337         MPT_ADAPTER *ioc = hd->ioc;
3338
3339         return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3340 }
3341 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3342
3343 static ssize_t
3344 mptscsih_version_product_show(struct device *dev,
3345                               struct device_attribute *attr,
3346 char *buf)
3347 {
3348         struct Scsi_Host *host = class_to_shost(dev);
3349         MPT_SCSI_HOST   *hd = shost_priv(host);
3350         MPT_ADAPTER *ioc = hd->ioc;
3351
3352         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3353 }
3354 static DEVICE_ATTR(version_product, S_IRUGO,
3355     mptscsih_version_product_show, NULL);
3356
3357 static ssize_t
3358 mptscsih_version_nvdata_persistent_show(struct device *dev,
3359                                         struct device_attribute *attr,
3360                                         char *buf)
3361 {
3362         struct Scsi_Host *host = class_to_shost(dev);
3363         MPT_SCSI_HOST   *hd = shost_priv(host);
3364         MPT_ADAPTER *ioc = hd->ioc;
3365
3366         return snprintf(buf, PAGE_SIZE, "%02xh\n",
3367             ioc->nvdata_version_persistent);
3368 }
3369 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3370     mptscsih_version_nvdata_persistent_show, NULL);
3371
3372 static ssize_t
3373 mptscsih_version_nvdata_default_show(struct device *dev,
3374                                      struct device_attribute *attr, char *buf)
3375 {
3376         struct Scsi_Host *host = class_to_shost(dev);
3377         MPT_SCSI_HOST   *hd = shost_priv(host);
3378         MPT_ADAPTER *ioc = hd->ioc;
3379
3380         return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3381 }
3382 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3383     mptscsih_version_nvdata_default_show, NULL);
3384
3385 static ssize_t
3386 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
3387                          char *buf)
3388 {
3389         struct Scsi_Host *host = class_to_shost(dev);
3390         MPT_SCSI_HOST   *hd = shost_priv(host);
3391         MPT_ADAPTER *ioc = hd->ioc;
3392
3393         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3394 }
3395 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3396
3397 static ssize_t
3398 mptscsih_board_assembly_show(struct device *dev,
3399                              struct device_attribute *attr, char *buf)
3400 {
3401         struct Scsi_Host *host = class_to_shost(dev);
3402         MPT_SCSI_HOST   *hd = shost_priv(host);
3403         MPT_ADAPTER *ioc = hd->ioc;
3404
3405         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3406 }
3407 static DEVICE_ATTR(board_assembly, S_IRUGO,
3408     mptscsih_board_assembly_show, NULL);
3409
3410 static ssize_t
3411 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
3412                            char *buf)
3413 {
3414         struct Scsi_Host *host = class_to_shost(dev);
3415         MPT_SCSI_HOST   *hd = shost_priv(host);
3416         MPT_ADAPTER *ioc = hd->ioc;
3417
3418         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3419 }
3420 static DEVICE_ATTR(board_tracer, S_IRUGO,
3421     mptscsih_board_tracer_show, NULL);
3422
3423 static ssize_t
3424 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
3425                        char *buf)
3426 {
3427         struct Scsi_Host *host = class_to_shost(dev);
3428         MPT_SCSI_HOST   *hd = shost_priv(host);
3429         MPT_ADAPTER *ioc = hd->ioc;
3430
3431         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3432 }
3433 static DEVICE_ATTR(io_delay, S_IRUGO,
3434     mptscsih_io_delay_show, NULL);
3435
3436 static ssize_t
3437 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
3438                            char *buf)
3439 {
3440         struct Scsi_Host *host = class_to_shost(dev);
3441         MPT_SCSI_HOST   *hd = shost_priv(host);
3442         MPT_ADAPTER *ioc = hd->ioc;
3443
3444         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3445 }
3446 static DEVICE_ATTR(device_delay, S_IRUGO,
3447     mptscsih_device_delay_show, NULL);
3448
3449 static ssize_t
3450 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
3451                           char *buf)
3452 {
3453         struct Scsi_Host *host = class_to_shost(dev);
3454         MPT_SCSI_HOST   *hd = shost_priv(host);
3455         MPT_ADAPTER *ioc = hd->ioc;
3456
3457         return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3458 }
3459 static ssize_t
3460 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
3461                            const char *buf, size_t count)
3462 {
3463         struct Scsi_Host *host = class_to_shost(dev);
3464         MPT_SCSI_HOST   *hd = shost_priv(host);
3465         MPT_ADAPTER *ioc = hd->ioc;
3466         int val = 0;
3467
3468         if (sscanf(buf, "%x", &val) != 1)
3469                 return -EINVAL;
3470
3471         ioc->debug_level = val;
3472         printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3473                                 ioc->name, ioc->debug_level);
3474         return strlen(buf);
3475 }
3476 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3477         mptscsih_debug_level_show, mptscsih_debug_level_store);
3478
3479 struct device_attribute *mptscsih_host_attrs[] = {
3480         &dev_attr_version_fw,
3481         &dev_attr_version_bios,
3482         &dev_attr_version_mpi,
3483         &dev_attr_version_product,
3484         &dev_attr_version_nvdata_persistent,
3485         &dev_attr_version_nvdata_default,
3486         &dev_attr_board_name,
3487         &dev_attr_board_assembly,
3488         &dev_attr_board_tracer,
3489         &dev_attr_io_delay,
3490         &dev_attr_device_delay,
3491         &dev_attr_debug_level,
3492         NULL,
3493 };
3494 EXPORT_SYMBOL(mptscsih_host_attrs);
3495
3496 EXPORT_SYMBOL(mptscsih_remove);
3497 EXPORT_SYMBOL(mptscsih_shutdown);
3498 #ifdef CONFIG_PM
3499 EXPORT_SYMBOL(mptscsih_suspend);
3500 EXPORT_SYMBOL(mptscsih_resume);
3501 #endif
3502 EXPORT_SYMBOL(mptscsih_proc_info);
3503 EXPORT_SYMBOL(mptscsih_info);
3504 EXPORT_SYMBOL(mptscsih_qcmd);
3505 EXPORT_SYMBOL(mptscsih_slave_destroy);
3506 EXPORT_SYMBOL(mptscsih_slave_configure);
3507 EXPORT_SYMBOL(mptscsih_abort);
3508 EXPORT_SYMBOL(mptscsih_dev_reset);
3509 EXPORT_SYMBOL(mptscsih_bus_reset);
3510 EXPORT_SYMBOL(mptscsih_host_reset);
3511 EXPORT_SYMBOL(mptscsih_bios_param);
3512 EXPORT_SYMBOL(mptscsih_io_done);
3513 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3514 EXPORT_SYMBOL(mptscsih_scandv_complete);
3515 EXPORT_SYMBOL(mptscsih_event_process);
3516 EXPORT_SYMBOL(mptscsih_ioc_reset);
3517 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3518 EXPORT_SYMBOL(mptscsih_timer_expired);
3519 EXPORT_SYMBOL(mptscsih_TMHandler);
3520
3521 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/