SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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) 1999-2007 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 int             mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
  84 static void     mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq);
  85 int             mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
  86
  87 static int      mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
  88                                  SCSIIORequest_t *pReq, int req_idx);
  89 static void     mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx);
  90 static void     mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply);
  91 static int      mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd);
  92 static int      mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout );
  93 static int      SCPNT_TO_LOOKUP_IDX(struct scsi_cmnd *sc);
  94
  95 static int      mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout);
  96
  97 int             mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
  98 int             mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
  99
 100 int             mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
 101 static int      mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd);
 102 static void     mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice);
 103
 104 void            mptscsih_remove(struct pci_dev *);
 105 void            mptscsih_shutdown(struct pci_dev *);
 106 #ifdef CONFIG_PM
 107 int             mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
 108 int             mptscsih_resume(struct pci_dev *pdev);
 109 #endif
 110
 111 #define SNS_LEN(scp)    sizeof((scp)->sense_buffer)
 112
 113 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 114 /**
 115  *      mptscsih_add_sge - Place a simple SGE at address pAddr.
 116  *      @pAddr: virtual address for SGE
 117  *      @flagslength: SGE flags and data transfer length
 118  *      @dma_addr: Physical address
 119  *
 120  *      This routine places a MPT request frame back on the MPT adapter's
 121  *      FreeQ.
 122  */
 123 static inline void
 124 mptscsih_add_sge(char *pAddr, u32 flagslength, dma_addr_t dma_addr)
 125 {
 126         if (sizeof(dma_addr_t) == sizeof(u64)) {
 127                 SGESimple64_t *pSge = (SGESimple64_t *) pAddr;
 128                 u32 tmp = dma_addr & 0xFFFFFFFF;
 129
 130                 pSge->FlagsLength = cpu_to_le32(flagslength);
 131                 pSge->Address.Low = cpu_to_le32(tmp);
 132                 tmp = (u32) ((u64)dma_addr >> 32);
 133                 pSge->Address.High = cpu_to_le32(tmp);
 134
 135         } else {
 136                 SGESimple32_t *pSge = (SGESimple32_t *) pAddr;
 137                 pSge->FlagsLength = cpu_to_le32(flagslength);
 138                 pSge->Address = cpu_to_le32(dma_addr);
 139         }
 140 } /* mptscsih_add_sge() */
 141
 142 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 143 /**
 144  *      mptscsih_add_chain - Place a chain SGE at address pAddr.
 145  *      @pAddr: virtual address for SGE
 146  *      @next: nextChainOffset value (u32's)
 147  *      @length: length of next SGL segment
 148  *      @dma_addr: Physical address
 149  *
 150  *      This routine places a MPT request frame back on the MPT adapter's
 151  *      FreeQ.
 152  */
 153 static inline void
 154 mptscsih_add_chain(char *pAddr, u8 next, u16 length, dma_addr_t dma_addr)
 155 {
 156         if (sizeof(dma_addr_t) == sizeof(u64)) {
 157                 SGEChain64_t *pChain = (SGEChain64_t *) pAddr;
 158                 u32 tmp = dma_addr & 0xFFFFFFFF;
 159
 160                 pChain->Length = cpu_to_le16(length);
 161                 pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT | mpt_addr_size();
 162
 163                 pChain->NextChainOffset = next;
 164
 165                 pChain->Address.Low = cpu_to_le32(tmp);
 166                 tmp = (u32) ((u64)dma_addr >> 32);
 167                 pChain->Address.High = cpu_to_le32(tmp);
 168         } else {
 169                 SGEChain32_t *pChain = (SGEChain32_t *) pAddr;
 170                 pChain->Length = cpu_to_le16(length);
 171                 pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT | mpt_addr_size();
 172                 pChain->NextChainOffset = next;
 173                 pChain->Address = cpu_to_le32(dma_addr);
 174         }
 175 } /* mptscsih_add_chain() */
 176
 177 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 178 /*
 179  *      mptscsih_getFreeChainBuffer - Function to get a free chain
 180  *      from the MPT_SCSI_HOST FreeChainQ.
 181  *      @ioc: Pointer to MPT_ADAPTER structure
 182  *      @req_idx: Index of the SCSI IO request frame. (output)
 183  *
 184  *      return SUCCESS or FAILED
 185  */
 186 static inline int
 187 mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex)
 188 {
 189         MPT_FRAME_HDR *chainBuf;
 190         unsigned long flags;
 191         int rc;
 192         int chain_idx;
 193
 194         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n",
 195                         ioc->name));
 196         spin_lock_irqsave(&ioc->FreeQlock, flags);
 197         if (!list_empty(&ioc->FreeChainQ)) {
 198                 int offset;
 199
 200                 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR,
 201                                 u.frame.linkage.list);
 202                 list_del(&chainBuf->u.frame.linkage.list);
 203                 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer;
 204                 chain_idx = offset / ioc->req_sz;
 205                 rc = SUCCESS;
 206                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n",
 207                         ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx));
 208         } else {
 209                 rc = FAILED;
 210                 chain_idx = MPT_HOST_NO_CHAIN;
 211                 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer failed\n",
 212                         ioc->name));
 213         }
 214         spin_unlock_irqrestore(&ioc->FreeQlock, flags);
 215
 216         *retIndex = chain_idx;
 217         return rc;
 218 } /* mptscsih_getFreeChainBuffer() */
 219
 220 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 221 /*
 222  *      mptscsih_AddSGE - Add a SGE (plus chain buffers) to the
 223  *      SCSIIORequest_t Message Frame.
 224  *      @ioc: Pointer to MPT_ADAPTER structure
 225  *      @SCpnt: Pointer to scsi_cmnd structure
 226  *      @pReq: Pointer to SCSIIORequest_t structure
 227  *
 228  *      Returns ...
 229  */
 230 static int
 231 mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt,
 232                 SCSIIORequest_t *pReq, int req_idx)
 233 {
 234         char    *psge;
 235         char    *chainSge;
 236         struct scatterlist *sg;
 237         int      frm_sz;
 238         int      sges_left, sg_done;
 239         int      chain_idx = MPT_HOST_NO_CHAIN;
 240         int      sgeOffset;
 241         int      numSgeSlots, numSgeThisFrame;
 242         u32      sgflags, sgdir, thisxfer = 0;
 243         int      chain_dma_off = 0;
 244         int      newIndex;
 245         int      ii;
 246         dma_addr_t v2;
 247         u32     RequestNB;
 248
 249         sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
 250         if (sgdir == MPI_SCSIIO_CONTROL_WRITE)  {
 251                 sgdir = MPT_TRANSFER_HOST_TO_IOC;
 252         } else {
 253                 sgdir = MPT_TRANSFER_IOC_TO_HOST;
 254         }
 255
 256         psge = (char *) &pReq->SGL;
 257         frm_sz = ioc->req_sz;
 258
 259         /* Map the data portion, if any.
 260          * sges_left  = 0 if no data transfer.
 261          */
 262         sges_left = scsi_dma_map(SCpnt);
 263         if (sges_left < 0)
 264                 return FAILED;
 265
 266         /* Handle the SG case.
 267          */
 268         sg = scsi_sglist(SCpnt);
 269         sg_done  = 0;
 270         sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION);
 271         chainSge = NULL;
 272
 273         /* Prior to entering this loop - the following must be set
 274          * current MF:  sgeOffset (bytes)
 275          *              chainSge (Null if original MF is not a chain buffer)
 276          *              sg_done (num SGE done for this MF)
 277          */
 278
 279 nextSGEset:
 280         numSgeSlots = ((frm_sz - sgeOffset) / (sizeof(u32) + sizeof(dma_addr_t)) );
 281         numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots;
 282
 283         sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | MPT_SGE_FLAGS_ADDRESSING | sgdir;
 284
 285         /* Get first (num - 1) SG elements
 286          * Skip any SG entries with a length of 0
 287          * NOTE: at finish, sg and psge pointed to NEXT data/location positions
 288          */
 289         for (ii=0; ii < (numSgeThisFrame-1); ii++) {
 290                 thisxfer = sg_dma_len(sg);
 291                 if (thisxfer == 0) {
 292                         sg ++; /* Get next SG element from the OS */
 293                         sg_done++;
 294                         continue;
 295                 }
 296
 297                 v2 = sg_dma_address(sg);
 298                 mptscsih_add_sge(psge, sgflags | thisxfer, v2);
 299
 300                 sg++;           /* Get next SG element from the OS */
 301                 psge += (sizeof(u32) + sizeof(dma_addr_t));
 302                 sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
 303                 sg_done++;
 304         }
 305
 306         if (numSgeThisFrame == sges_left) {
 307                 /* Add last element, end of buffer and end of list flags.
 308                  */
 309                 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT |
 310                                 MPT_SGE_FLAGS_END_OF_BUFFER |
 311                                 MPT_SGE_FLAGS_END_OF_LIST;
 312
 313                 /* Add last SGE and set termination flags.
 314                  * Note: Last SGE may have a length of 0 - which should be ok.
 315                  */
 316                 thisxfer = sg_dma_len(sg);
 317
 318                 v2 = sg_dma_address(sg);
 319                 mptscsih_add_sge(psge, sgflags | thisxfer, v2);
 320                 /*
 321                 sg++;
 322                 psge += (sizeof(u32) + sizeof(dma_addr_t));
 323                 */
 324                 sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
 325                 sg_done++;
 326
 327                 if (chainSge) {
 328                         /* The current buffer is a chain buffer,
 329                          * but there is not another one.
 330                          * Update the chain element
 331                          * Offset and Length fields.
 332                          */
 333                         mptscsih_add_chain((char *)chainSge, 0, sgeOffset, ioc->ChainBufferDMA + chain_dma_off);
 334                 } else {
 335                         /* The current buffer is the original MF
 336                          * and there is no Chain buffer.
 337                          */
 338                         pReq->ChainOffset = 0;
 339                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
 340                         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 341                             "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
 342                         ioc->RequestNB[req_idx] = RequestNB;
 343                 }
 344         } else {
 345                 /* At least one chain buffer is needed.
 346                  * Complete the first MF
 347                  *  - last SGE element, set the LastElement bit
 348                  *  - set ChainOffset (words) for orig MF
 349                  *             (OR finish previous MF chain buffer)
 350                  *  - update MFStructPtr ChainIndex
 351                  *  - Populate chain element
 352                  * Also
 353                  * Loop until done.
 354                  */
 355
 356                 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n",
 357                                 ioc->name, sg_done));
 358
 359                 /* Set LAST_ELEMENT flag for last non-chain element
 360                  * in the buffer. Since psge points at the NEXT
 361                  * SGE element, go back one SGE element, update the flags
 362                  * and reset the pointer. (Note: sgflags & thisxfer are already
 363                  * set properly).
 364                  */
 365                 if (sg_done) {
 366                         u32 *ptmp = (u32 *) (psge - (sizeof(u32) + sizeof(dma_addr_t)));
 367                         sgflags = le32_to_cpu(*ptmp);
 368                         sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT;
 369                         *ptmp = cpu_to_le32(sgflags);
 370                 }
 371
 372                 if (chainSge) {
 373                         /* The current buffer is a chain buffer.
 374                          * chainSge points to the previous Chain Element.
 375                          * Update its chain element Offset and Length (must
 376                          * include chain element size) fields.
 377                          * Old chain element is now complete.
 378                          */
 379                         u8 nextChain = (u8) (sgeOffset >> 2);
 380                         sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
 381                         mptscsih_add_chain((char *)chainSge, nextChain, sgeOffset, ioc->ChainBufferDMA + chain_dma_off);
 382                 } else {
 383                         /* The original MF buffer requires a chain buffer -
 384                          * set the offset.
 385                          * Last element in this MF is a chain element.
 386                          */
 387                         pReq->ChainOffset = (u8) (sgeOffset >> 2);
 388                         RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor)  + 1) & 0x03;
 389                         dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset));
 390                         ioc->RequestNB[req_idx] = RequestNB;
 391                 }
 392
 393                 sges_left -= sg_done;
 394
 395
 396                 /* NOTE: psge points to the beginning of the chain element
 397                  * in current buffer. Get a chain buffer.
 398                  */
 399                 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) {
 400                         dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 401                             "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n",
 402                             ioc->name, pReq->CDB[0], SCpnt));
 403                         return FAILED;
 404                 }
 405
 406                 /* Update the tracking arrays.
 407                  * If chainSge == NULL, update ReqToChain, else ChainToChain
 408                  */
 409                 if (chainSge) {
 410                         ioc->ChainToChain[chain_idx] = newIndex;
 411                 } else {
 412                         ioc->ReqToChain[req_idx] = newIndex;
 413                 }
 414                 chain_idx = newIndex;
 415                 chain_dma_off = ioc->req_sz * chain_idx;
 416
 417                 /* Populate the chainSGE for the current buffer.
 418                  * - Set chain buffer pointer to psge and fill
 419                  *   out the Address and Flags fields.
 420                  */
 421                 chainSge = (char *) psge;
 422                 dsgprintk(ioc, printk(KERN_DEBUG "  Current buff @ %p (index 0x%x)",
 423                                 psge, req_idx));
 424
 425                 /* Start the SGE for the next buffer
 426                  */
 427                 psge = (char *) (ioc->ChainBuffer + chain_dma_off);
 428                 sgeOffset = 0;
 429                 sg_done = 0;
 430
 431                 dsgprintk(ioc, printk(KERN_DEBUG "  Chain buff @ %p (index 0x%x)\n",
 432                                 psge, chain_idx));
 433
 434                 /* Start the SGE for the next buffer
 435                  */
 436
 437                 goto nextSGEset;
 438         }
 439
 440         return SUCCESS;
 441 } /* mptscsih_AddSGE() */
 442
 443 static void
 444 mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget,
 445     U32 SlotStatus)
 446 {
 447         MPT_FRAME_HDR *mf;
 448         SEPRequest_t     *SEPMsg;
 449
 450         if (ioc->bus_type != SAS)
 451                 return;
 452
 453         /* Not supported for hidden raid components
 454          */
 455         if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
 456                 return;
 457
 458         if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
 459                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
 460                     ioc->name,__FUNCTION__));
 461                 return;
 462         }
 463
 464         SEPMsg = (SEPRequest_t *)mf;
 465         SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
 466         SEPMsg->Bus = vtarget->channel;
 467         SEPMsg->TargetID = vtarget->id;
 468         SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
 469         SEPMsg->SlotStatus = SlotStatus;
 470         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 471             "Sending SEP cmd=%x channel=%d id=%d\n",
 472             ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
 473         mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
 474 }
 475
 476 #ifdef CONFIG_FUSION_LOGGING
 477 /**
 478  *      mptscsih_info_scsiio - debug print info on reply frame
 479  *      @ioc: Pointer to MPT_ADAPTER structure
 480  *      @sc: original scsi cmnd pointer
 481  *      @pScsiReply: Pointer to MPT reply frame
 482  *
 483  *      MPT_DEBUG_REPLY needs to be enabled to obtain this info
 484  *
 485  *      Refer to lsi/mpi.h.
 486  **/
 487 static void
 488 mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
 489 {
 490         char    *desc = NULL;
 491         char    *desc1 = NULL;
 492         u16     ioc_status;
 493         u8      skey, asc, ascq;
 494
 495         ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
 496
 497         switch (ioc_status) {
 498
 499         case MPI_IOCSTATUS_SUCCESS:
 500                 desc = "success";
 501                 break;
 502         case MPI_IOCSTATUS_SCSI_INVALID_BUS:
 503                 desc = "invalid bus";
 504                 break;
 505         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
 506                 desc = "invalid target_id";
 507                 break;
 508         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
 509                 desc = "device not there";
 510                 break;
 511         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
 512                 desc = "data overrun";
 513                 break;
 514         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
 515                 desc = "data underrun";
 516                 break;
 517         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
 518                 desc = "I/O data error";
 519                 break;
 520         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
 521                 desc = "protocol error";
 522                 break;
 523         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
 524                 desc = "task terminated";
 525                 break;
 526         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
 527                 desc = "residual mismatch";
 528                 break;
 529         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
 530                 desc = "task management failed";
 531                 break;
 532         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
 533                 desc = "IOC terminated";
 534                 break;
 535         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
 536                 desc = "ext terminated";
 537                 break;
 538         default:
 539                 desc = "";
 540                 break;
 541         }
 542
 543         switch (pScsiReply->SCSIStatus)
 544         {
 545
 546         case MPI_SCSI_STATUS_SUCCESS:
 547                 desc1 = "success";
 548                 break;
 549         case MPI_SCSI_STATUS_CHECK_CONDITION:
 550                 desc1 = "check condition";
 551                 break;
 552         case MPI_SCSI_STATUS_CONDITION_MET:
 553                 desc1 = "condition met";
 554                 break;
 555         case MPI_SCSI_STATUS_BUSY:
 556                 desc1 = "busy";
 557                 break;
 558         case MPI_SCSI_STATUS_INTERMEDIATE:
 559                 desc1 = "intermediate";
 560                 break;
 561         case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET:
 562                 desc1 = "intermediate condmet";
 563                 break;
 564         case MPI_SCSI_STATUS_RESERVATION_CONFLICT:
 565                 desc1 = "reservation conflict";
 566                 break;
 567         case MPI_SCSI_STATUS_COMMAND_TERMINATED:
 568                 desc1 = "command terminated";
 569                 break;
 570         case MPI_SCSI_STATUS_TASK_SET_FULL:
 571                 desc1 = "task set full";
 572                 break;
 573         case MPI_SCSI_STATUS_ACA_ACTIVE:
 574                 desc1 = "aca active";
 575                 break;
 576         case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT:
 577                 desc1 = "fcpext device logged out";
 578                 break;
 579         case MPI_SCSI_STATUS_FCPEXT_NO_LINK:
 580                 desc1 = "fcpext no link";
 581                 break;
 582         case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED:
 583                 desc1 = "fcpext unassigned";
 584                 break;
 585         default:
 586                 desc1 = "";
 587                 break;
 588         }
 589
 590         scsi_print_command(sc);
 591         printk(KERN_DEBUG "\tfw_channel = %d, fw_id = %d\n",
 592             pScsiReply->Bus, pScsiReply->TargetID);
 593         printk(KERN_DEBUG "\trequest_len = %d, underflow = %d, resid = %d\n",
 594             scsi_bufflen(sc), sc->underflow, scsi_get_resid(sc));
 595         printk(KERN_DEBUG "\ttag = %d, transfer_count = %d, sc->result = %08X\n",
 596             le16_to_cpu(pScsiReply->TaskTag),
 597             le32_to_cpu(pScsiReply->TransferCount), sc->result);
 598
 599         printk(KERN_DEBUG "\tiocstatus = %s (0x%04x), "
 600             "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
 601             desc, ioc_status,
 602             desc1, pScsiReply->SCSIStatus,
 603             pScsiReply->SCSIState);
 604
 605         if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
 606                 skey = sc->sense_buffer[2] & 0x0F;
 607                 asc = sc->sense_buffer[12];
 608                 ascq = sc->sense_buffer[13];
 609
 610                 printk(KERN_DEBUG "\t[sense_key,asc,ascq]: "
 611                     "[0x%02x,0x%02x,0x%02x]\n",
 612                     skey, asc, ascq);
 613         }
 614
 615         /*
 616          *  Look for + dump FCP ResponseInfo[]!
 617          */
 618         if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
 619             pScsiReply->ResponseInfo)
 620                 printk(KERN_DEBUG "response_info = %08xh\n",
 621                     le32_to_cpu(pScsiReply->ResponseInfo));
 622 }
 623 #endif
 624
 625 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 626 /*
 627  *      mptscsih_io_done - Main SCSI IO callback routine registered to
 628  *      Fusion MPT (base) driver
 629  *      @ioc: Pointer to MPT_ADAPTER structure
 630  *      @mf: Pointer to original MPT request frame
 631  *      @r: Pointer to MPT reply frame (NULL if TurboReply)
 632  *
 633  *      This routine is called from mpt.c::mpt_interrupt() at the completion
 634  *      of any SCSI IO request.
 635  *      This routine is registered with the Fusion MPT (base) driver at driver
 636  *      load/init time via the mpt_register() API call.
 637  *
 638  *      Returns 1 indicating alloc'd request frame ptr should be freed.
 639  */
 640 int
 641 mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
 642 {
 643         struct scsi_cmnd        *sc;
 644         MPT_SCSI_HOST   *hd;
 645         SCSIIORequest_t *pScsiReq;
 646         SCSIIOReply_t   *pScsiReply;
 647         u16              req_idx, req_idx_MR;
 648         VirtDevice       *vdev;
 649         VirtTarget       *vtarget;
 650
 651         hd = (MPT_SCSI_HOST *) ioc->sh->hostdata;
 652
 653         req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
 654         req_idx_MR = (mr != NULL) ?
 655             le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
 656         if ((req_idx != req_idx_MR) ||
 657             (mf->u.frame.linkage.arg1 == 0xdeadbeaf)) {
 658                 printk(MYIOC_s_ERR_FMT "Received a mf that was already freed\n",
 659                     ioc->name);
 660                 printk (MYIOC_s_ERR_FMT
 661                     "req_idx=%x req_idx_MR=%x mf=%p mr=%p sc=%p\n",
 662                     ioc->name, req_idx, req_idx_MR, mf, mr,
 663                     hd->ScsiLookup[req_idx_MR]);
 664                 return 0;
 665         }
 666
 667         sc = hd->ScsiLookup[req_idx];
 668         hd->ScsiLookup[req_idx] = NULL;
 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(KERN_NOTICE "[%d:%d:%d:%d] "
 742                         "FCP_ResponseInfo=%08xh\n",
 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                         vdev = sc->device->hostdata;
 775                         if (!vdev)
 776                                 break;
 777                         vtarget = vdev->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(KERN_DEBUG
 828                             "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
 829                             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(KERN_DEBUG "  sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
 862                                         sc->underflow));
 863                         dreplyprintk(ioc, printk(KERN_DEBUG "  ActBytesXferd=%02xh\n", xfer_cnt));
 864
 865                         /* Report Queue Full
 866                          */
 867                         if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
 868                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 869
 870                         break;
 871
 872                 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:           /* 0x0044 */
 873                         scsi_set_resid(sc, 0);
 874                 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
 875                 case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
 876                         sc->result = (DID_OK << 16) | scsi_status;
 877                         if (scsi_state == 0) {
 878                                 ;
 879                         } else if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) {
 880                                 /*
 881                                  * If running against circa 200003dd 909 MPT f/w,
 882                                  * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
 883                                  * (QUEUE_FULL) returned from device! --> get 0x0000?128
 884                                  * and with SenseBytes set to 0.
 885                                  */
 886                                 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
 887                                         mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 888
 889                         }
 890                         else if (scsi_state &
 891                                  (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
 892                            ) {
 893                                 /*
 894                                  * What to do?
 895                                  */
 896                                 sc->result = DID_SOFT_ERROR << 16;
 897                         }
 898                         else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
 899                                 /*  Not real sure here either...  */
 900                                 sc->result = DID_RESET << 16;
 901                         }
 902                         else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {
 903                                 /* Device Inq. data indicates that it supports
 904                                  * QTags, but rejects QTag messages.
 905                                  * This command completed OK.
 906                                  *
 907                                  * Not real sure here either so do nothing...  */
 908                         }
 909
 910                         if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL)
 911                                 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);
 912
 913                         /* Add handling of:
 914                          * Reservation Conflict, Busy,
 915                          * Command Terminated, CHECK
 916                          */
 917                         break;
 918
 919                 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
 920                         sc->result = DID_SOFT_ERROR << 16;
 921                         break;
 922
 923                 case MPI_IOCSTATUS_INVALID_FUNCTION:            /* 0x0001 */
 924                 case MPI_IOCSTATUS_INVALID_SGL:                 /* 0x0003 */
 925                 case MPI_IOCSTATUS_INTERNAL_ERROR:              /* 0x0004 */
 926                 case MPI_IOCSTATUS_RESERVED:                    /* 0x0005 */
 927                 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:      /* 0x0006 */
 928                 case MPI_IOCSTATUS_INVALID_FIELD:               /* 0x0007 */
 929                 case MPI_IOCSTATUS_INVALID_STATE:               /* 0x0008 */
 930                 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
 931                 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:       /* 0x004A */
 932                 default:
 933                         /*
 934                          * What to do?
 935                          */
 936                         sc->result = DID_SOFT_ERROR << 16;
 937                         break;
 938
 939                 }       /* switch(status) */
 940
 941 #ifdef CONFIG_FUSION_LOGGING
 942                 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY))
 943                         mptscsih_info_scsiio(ioc, sc, pScsiReply);
 944 #endif
 945
 946         } /* end of address reply case */
 947
 948         /* Unmap the DMA buffers, if any. */
 949         scsi_dma_unmap(sc);
 950
 951         sc->scsi_done(sc);              /* Issue the command callback */
 952
 953         /* Free Chain buffers */
 954         mptscsih_freeChainBuffers(ioc, req_idx);
 955         return 1;
 956 }
 957
 958 /*
 959  *      mptscsih_flush_running_cmds - For each command found, search
 960  *              Scsi_Host instance taskQ and reply to OS.
 961  *              Called only if recovering from a FW reload.
 962  *      @hd: Pointer to a SCSI HOST structure
 963  *
 964  *      Returns: None.
 965  *
 966  *      Must be called while new I/Os are being queued.
 967  */
 968 static void
 969 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
 970 {
 971         MPT_ADAPTER *ioc = hd->ioc;
 972         struct scsi_cmnd        *SCpnt;
 973         MPT_FRAME_HDR   *mf;
 974         int              ii;
 975         int              max = ioc->req_depth;
 976
 977         dprintk(ioc, printk(KERN_DEBUG MYNAM ": flush_ScsiLookup called\n"));
 978         for (ii= 0; ii < max; ii++) {
 979                 if ((SCpnt = hd->ScsiLookup[ii]) != NULL) {
 980
 981                         /* Command found.
 982                          */
 983
 984                         /* Null ScsiLookup index
 985                          */
 986                         hd->ScsiLookup[ii] = NULL;
 987
 988                         mf = MPT_INDEX_2_MFPTR(ioc, ii);
 989                         dmfprintk(ioc, printk(KERN_DEBUG MYNAM ": flush: ScsiDone (mf=%p,sc=%p)\n",
 990                                         mf, SCpnt));
 991
 992                         /* Free Chain buffers */
 993                         mptscsih_freeChainBuffers(ioc, ii);
 994
 995                         /* Free Message frames */
 996                         mpt_free_msg_frame(ioc, mf);
 997
 998                         if ((unsigned char *)mf != SCpnt->host_scribble)
 999                                 continue;
1000
1001                         /* Set status, free OS resources (SG DMA buffers)
1002                          * Do OS callback
1003                          */
1004                         scsi_dma_unmap(SCpnt);
1005
1006                         SCpnt->result = DID_RESET << 16;
1007                         SCpnt->host_scribble = NULL;
1008
1009                         SCpnt->scsi_done(SCpnt);        /* Issue the command callback */
1010                 }
1011         }
1012
1013         return;
1014 }
1015
1016 /*
1017  *      mptscsih_search_running_cmds - Delete any commands associated
1018  *              with the specified target and lun. Function called only
1019  *              when a lun is disable by mid-layer.
1020  *              Do NOT access the referenced scsi_cmnd structure or
1021  *              members. Will cause either a paging or NULL ptr error.
1022  *              (BUT, BUT, BUT, the code does reference it! - mdr)
1023  *      @hd: Pointer to a SCSI HOST structure
1024  *      @vdevice: per device private data
1025  *
1026  *      Returns: None.
1027  *
1028  *      Called from slave_destroy.
1029  */
1030 static void
1031 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
1032 {
1033         SCSIIORequest_t *mf = NULL;
1034         int              ii;
1035         int              max = hd->ioc->req_depth;
1036         struct scsi_cmnd *sc;
1037         struct scsi_lun  lun;
1038
1039         dsprintk(hd->ioc, printk(KERN_DEBUG MYNAM ": search_running channel %d id %d lun %d max %d\n",
1040             vdevice->vtarget->channel, vdevice->vtarget->id, vdevice->lun, max));
1041
1042         for (ii=0; ii < max; ii++) {
1043                 if ((sc = hd->ScsiLookup[ii]) != NULL) {
1044
1045                         mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(hd->ioc, ii);
1046                         if (mf == NULL)
1047                                 continue;
1048                         /* If the device is a hidden raid component, then its
1049                          * expected that the mf->function will be RAID_SCSI_IO
1050                          */
1051                         if (vdevice->vtarget->tflags &
1052                             MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function !=
1053                             MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
1054                                 continue;
1055
1056                         int_to_scsilun(vdevice->lun, &lun);
1057                         if ((mf->Bus != vdevice->vtarget->channel) ||
1058                             (mf->TargetID != vdevice->vtarget->id) ||
1059                             memcmp(lun.scsi_lun, mf->LUN, 8))
1060                                 continue;
1061
1062                         /* Cleanup
1063                          */
1064                         hd->ScsiLookup[ii] = NULL;
1065                         mptscsih_freeChainBuffers(hd->ioc, ii);
1066                         mpt_free_msg_frame(hd->ioc, (MPT_FRAME_HDR *)mf);
1067                         if ((unsigned char *)mf != sc->host_scribble)
1068                                 continue;
1069                         scsi_dma_unmap(sc);
1070                         sc->host_scribble = NULL;
1071                         sc->result = DID_NO_CONNECT << 16;
1072                         sdev_printk(KERN_INFO, sc->device, "completing cmds: fw_channel %d,"
1073                            "fw_id %d, sc=%p, mf = %p, idx=%x\n", vdevice->vtarget->channel,
1074                            vdevice->vtarget->id, sc, mf, ii);
1075                         sc->scsi_done(sc);
1076                 }
1077         }
1078         return;
1079 }
1080
1081 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1082
1083 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1084 /*
1085  *      mptscsih_report_queue_full - Report QUEUE_FULL status returned
1086  *      from a SCSI target device.
1087  *      @sc: Pointer to scsi_cmnd structure
1088  *      @pScsiReply: Pointer to SCSIIOReply_t
1089  *      @pScsiReq: Pointer to original SCSI request
1090  *
1091  *      This routine periodically reports QUEUE_FULL status returned from a
1092  *      SCSI target device.  It reports this to the console via kernel
1093  *      printk() API call, not more than once every 10 seconds.
1094  */
1095 static void
1096 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq)
1097 {
1098         long time = jiffies;
1099         MPT_SCSI_HOST           *hd;
1100
1101         if (sc->device == NULL)
1102                 return;
1103         if (sc->device->host == NULL)
1104                 return;
1105         if ((hd = (MPT_SCSI_HOST *)sc->device->host->hostdata) == NULL)
1106                 return;
1107
1108         if (time - hd->last_queue_full > 10 * HZ) {
1109                 dprintk(hd->ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n",
1110                                 hd->ioc->name, 0, sc->device->id, sc->device->lun));
1111                 hd->last_queue_full = time;
1112         }
1113 }
1114
1115 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1116 /*
1117  *      mptscsih_remove - Removed scsi devices
1118  *      @pdev: Pointer to pci_dev structure
1119  *
1120  *
1121  */
1122 void
1123 mptscsih_remove(struct pci_dev *pdev)
1124 {
1125         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1126         struct Scsi_Host        *host = ioc->sh;
1127         MPT_SCSI_HOST           *hd;
1128         int sz1;
1129
1130         if(!host) {
1131                 mpt_detach(pdev);
1132                 return;
1133         }
1134
1135         scsi_remove_host(host);
1136
1137         if((hd = (MPT_SCSI_HOST *)host->hostdata) == NULL)
1138                 return;
1139
1140         mptscsih_shutdown(pdev);
1141
1142         sz1=0;
1143
1144         if (hd->ScsiLookup != NULL) {
1145                 sz1 = hd->ioc->req_depth * sizeof(void *);
1146                 kfree(hd->ScsiLookup);
1147                 hd->ScsiLookup = NULL;
1148         }
1149
1150         dprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT
1151             "Free'd ScsiLookup (%d) memory\n",
1152             hd->ioc->name, sz1));
1153
1154         kfree(hd->info_kbuf);
1155
1156         /* NULL the Scsi_Host pointer
1157          */
1158         hd->ioc->sh = NULL;
1159
1160         scsi_host_put(host);
1161
1162         mpt_detach(pdev);
1163
1164 }
1165
1166 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1167 /*
1168  *      mptscsih_shutdown - reboot notifier
1169  *
1170  */
1171 void
1172 mptscsih_shutdown(struct pci_dev *pdev)
1173 {
1174         MPT_ADAPTER             *ioc = pci_get_drvdata(pdev);
1175         struct Scsi_Host        *host = ioc->sh;
1176         MPT_SCSI_HOST           *hd;
1177
1178         if(!host)
1179                 return;
1180
1181         hd = (MPT_SCSI_HOST *)host->hostdata;
1182
1183 }
1184
1185 #ifdef CONFIG_PM
1186 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1187 /*
1188  *      mptscsih_suspend - Fusion MPT scsi driver suspend routine.
1189  *
1190  *
1191  */
1192 int
1193 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
1194 {
1195         mptscsih_shutdown(pdev);
1196         return mpt_suspend(pdev,state);
1197 }
1198
1199 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1200 /*
1201  *      mptscsih_resume - Fusion MPT scsi driver resume routine.
1202  *
1203  *
1204  */
1205 int
1206 mptscsih_resume(struct pci_dev *pdev)
1207 {
1208         return mpt_resume(pdev);
1209 }
1210
1211 #endif
1212
1213 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1214 /**
1215  *      mptscsih_info - Return information about MPT adapter
1216  *      @SChost: Pointer to Scsi_Host structure
1217  *
1218  *      (linux scsi_host_template.info routine)
1219  *
1220  *      Returns pointer to buffer where information was written.
1221  */
1222 const char *
1223 mptscsih_info(struct Scsi_Host *SChost)
1224 {
1225         MPT_SCSI_HOST *h;
1226         int size = 0;
1227
1228         h = (MPT_SCSI_HOST *)SChost->hostdata;
1229
1230         if (h) {
1231                 if (h->info_kbuf == NULL)
1232                         if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
1233                                 return h->info_kbuf;
1234                 h->info_kbuf[0] = '\0';
1235
1236                 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
1237                 h->info_kbuf[size-1] = '\0';
1238         }
1239
1240         return h->info_kbuf;
1241 }
1242
1243 struct info_str {
1244         char *buffer;
1245         int   length;
1246         int   offset;
1247         int   pos;
1248 };
1249
1250 static void
1251 mptscsih_copy_mem_info(struct info_str *info, char *data, int len)
1252 {
1253         if (info->pos + len > info->length)
1254                 len = info->length - info->pos;
1255
1256         if (info->pos + len < info->offset) {
1257                 info->pos += len;
1258                 return;
1259         }
1260
1261         if (info->pos < info->offset) {
1262                 data += (info->offset - info->pos);
1263                 len  -= (info->offset - info->pos);
1264         }
1265
1266         if (len > 0) {
1267                 memcpy(info->buffer + info->pos, data, len);
1268                 info->pos += len;
1269         }
1270 }
1271
1272 static int
1273 mptscsih_copy_info(struct info_str *info, char *fmt, ...)
1274 {
1275         va_list args;
1276         char buf[81];
1277         int len;
1278
1279         va_start(args, fmt);
1280         len = vsprintf(buf, fmt, args);
1281         va_end(args);
1282
1283         mptscsih_copy_mem_info(info, buf, len);
1284         return len;
1285 }
1286
1287 static int
1288 mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len)
1289 {
1290         struct info_str info;
1291
1292         info.buffer     = pbuf;
1293         info.length     = len;
1294         info.offset     = offset;
1295         info.pos        = 0;
1296
1297         mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name);
1298         mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word);
1299         mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts);
1300         mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth);
1301
1302         return ((info.pos > info.offset) ? info.pos - info.offset : 0);
1303 }
1304
1305 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1306 /**
1307  *      mptscsih_proc_info - Return information about MPT adapter
1308  *      @host:   scsi host struct
1309  *      @buffer: if write, user data; if read, buffer for user
1310  *      @start: returns the buffer address
1311  *      @offset: if write, 0; if read, the current offset into the buffer from
1312  *               the previous read.
1313  *      @length: if write, return length;
1314  *      @func:   write = 1; read = 0
1315  *
1316  *      (linux scsi_host_template.info routine)
1317  */
1318 int
1319 mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
1320                         int length, int func)
1321 {
1322         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
1323         MPT_ADAPTER     *ioc = hd->ioc;
1324         int size = 0;
1325
1326         if (func) {
1327                 /*
1328                  * write is not supported
1329                  */
1330         } else {
1331                 if (start)
1332                         *start = buffer;
1333
1334                 size = mptscsih_host_info(ioc, buffer, offset, length);
1335         }
1336
1337         return size;
1338 }
1339
1340 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1341 #define ADD_INDEX_LOG(req_ent)  do { } while(0)
1342
1343 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1344 /**
1345  *      mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine.
1346  *      @SCpnt: Pointer to scsi_cmnd structure
1347  *      @done: Pointer SCSI mid-layer IO completion function
1348  *
1349  *      (linux scsi_host_template.queuecommand routine)
1350  *      This is the primary SCSI IO start routine.  Create a MPI SCSIIORequest
1351  *      from a linux scsi_cmnd request and send it to the IOC.
1352  *
1353  *      Returns 0. (rtn value discarded by linux scsi mid-layer)
1354  */
1355 int
1356 mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1357 {
1358         MPT_SCSI_HOST           *hd;
1359         MPT_FRAME_HDR           *mf;
1360         SCSIIORequest_t         *pScsiReq;
1361         VirtDevice              *vdev = SCpnt->device->hostdata;
1362         int      lun;
1363         u32      datalen;
1364         u32      scsictl;
1365         u32      scsidir;
1366         u32      cmd_len;
1367         int      my_idx;
1368         int      ii;
1369         MPT_ADAPTER *ioc;
1370
1371         hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata;
1372         ioc = hd->ioc;
1373         lun = SCpnt->device->lun;
1374         SCpnt->scsi_done = done;
1375
1376         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
1377                 ioc->name, SCpnt, done));
1378
1379         if (hd->resetPending) {
1380                 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT "qcmd: SCpnt=%p timeout + 60HZ\n",
1381                         ioc->name, SCpnt));
1382                 return SCSI_MLQUEUE_HOST_BUSY;
1383         }
1384
1385         /*
1386          *  Put together a MPT SCSI request...
1387          */
1388         if ((mf = mpt_get_msg_frame(hd->ioc->DoneCtx, hd->ioc)) == NULL) {
1389                 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n",
1390                                 ioc->name));
1391                 return SCSI_MLQUEUE_HOST_BUSY;
1392         }
1393
1394         pScsiReq = (SCSIIORequest_t *) mf;
1395
1396         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
1397
1398         ADD_INDEX_LOG(my_idx);
1399
1400         /*    TUR's being issued with scsictl=0x02000000 (DATA_IN)!
1401          *    Seems we may receive a buffer (datalen>0) even when there
1402          *    will be no data transfer!  GRRRRR...
1403          */
1404         if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1405                 datalen = scsi_bufflen(SCpnt);
1406                 scsidir = MPI_SCSIIO_CONTROL_READ;      /* DATA IN  (host<--ioc<--dev) */
1407         } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1408                 datalen = scsi_bufflen(SCpnt);
1409                 scsidir = MPI_SCSIIO_CONTROL_WRITE;     /* DATA OUT (host-->ioc-->dev) */
1410         } else {
1411                 datalen = 0;
1412                 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER;
1413         }
1414
1415         /* Default to untagged. Once a target structure has been allocated,
1416          * use the Inquiry data to determine if device supports tagged.
1417          */
1418         if (vdev
1419             && (vdev->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)
1420             && (SCpnt->device->tagged_supported)) {
1421                 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ;
1422         } else {
1423                 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED;
1424         }
1425
1426         /* Use the above information to set up the message frame
1427          */
1428         pScsiReq->TargetID = (u8) vdev->vtarget->id;
1429         pScsiReq->Bus = vdev->vtarget->channel;
1430         pScsiReq->ChainOffset = 0;
1431         if (vdev->vtarget->tflags &  MPT_TARGET_FLAGS_RAID_COMPONENT)
1432                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
1433         else
1434                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
1435         pScsiReq->CDBLength = SCpnt->cmd_len;
1436         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
1437         pScsiReq->Reserved = 0;
1438         pScsiReq->MsgFlags = mpt_msg_flags();
1439         int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN);
1440         pScsiReq->Control = cpu_to_le32(scsictl);
1441
1442         /*
1443          *  Write SCSI CDB into the message
1444          */
1445         cmd_len = SCpnt->cmd_len;
1446         for (ii=0; ii < cmd_len; ii++)
1447                 pScsiReq->CDB[ii] = SCpnt->cmnd[ii];
1448
1449         for (ii=cmd_len; ii < 16; ii++)
1450                 pScsiReq->CDB[ii] = 0;
1451
1452         /* DataLength */
1453         pScsiReq->DataLength = cpu_to_le32(datalen);
1454
1455         /* SenseBuffer low address */
1456         pScsiReq->SenseBufferLowAddr = cpu_to_le32(hd->ioc->sense_buf_low_dma
1457                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
1458
1459         /* Now add the SG list
1460          * Always have a SGE even if null length.
1461          */
1462         if (datalen == 0) {
1463                 /* Add a NULL SGE */
1464                 mptscsih_add_sge((char *)&pScsiReq->SGL, MPT_SGE_FLAGS_SSIMPLE_READ | 0,
1465                         (dma_addr_t) -1);
1466         } else {
1467                 /* Add a 32 or 64 bit SGE */
1468                 if (mptscsih_AddSGE(hd->ioc, SCpnt, pScsiReq, my_idx) != SUCCESS)
1469                         goto fail;
1470         }
1471
1472         SCpnt->host_scribble = (unsigned char *)mf;
1473         hd->ScsiLookup[my_idx] = SCpnt;
1474
1475         mpt_put_msg_frame(hd->ioc->DoneCtx, hd->ioc, mf);
1476         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n",
1477                         ioc->name, SCpnt, mf, my_idx));
1478         DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf)
1479         return 0;
1480
1481  fail:
1482         hd->ScsiLookup[my_idx] = NULL;
1483         mptscsih_freeChainBuffers(hd->ioc, my_idx);
1484         mpt_free_msg_frame(hd->ioc, mf);
1485         return SCSI_MLQUEUE_HOST_BUSY;
1486 }
1487
1488 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1489 /*
1490  *      mptscsih_freeChainBuffers - Function to free chain buffers associated
1491  *      with a SCSI IO request
1492  *      @hd: Pointer to the MPT_SCSI_HOST instance
1493  *      @req_idx: Index of the SCSI IO request frame.
1494  *
1495  *      Called if SG chain buffer allocation fails and mptscsih callbacks.
1496  *      No return.
1497  */
1498 static void
1499 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx)
1500 {
1501         MPT_FRAME_HDR *chain;
1502         unsigned long flags;
1503         int chain_idx;
1504         int next;
1505
1506         /* Get the first chain index and reset
1507          * tracker state.
1508          */
1509         chain_idx = ioc->ReqToChain[req_idx];
1510         ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN;
1511
1512         while (chain_idx != MPT_HOST_NO_CHAIN) {
1513
1514                 /* Save the next chain buffer index */
1515                 next = ioc->ChainToChain[chain_idx];
1516
1517                 /* Free this chain buffer and reset
1518                  * tracker
1519                  */
1520                 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN;
1521
1522                 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer
1523                                         + (chain_idx * ioc->req_sz));
1524
1525                 spin_lock_irqsave(&ioc->FreeQlock, flags);
1526                 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ);
1527                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
1528
1529                 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n",
1530                                 ioc->name, chain_idx));
1531
1532                 /* handle next */
1533                 chain_idx = next;
1534         }
1535         return;
1536 }
1537
1538 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1539 /*
1540  *      Reset Handling
1541  */
1542
1543 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1544 /**
1545  *      mptscsih_TMHandler - Generic handler for SCSI Task Management.
1546  *      @hd: Pointer to MPT SCSI HOST structure
1547  *      @type: Task Management type
1548  *      @channel: channel number for task management
1549  *      @id: Logical Target ID for reset (if appropriate)
1550  *      @lun: Logical Unit for reset (if appropriate)
1551  *      @ctx2abort: Context for the task to be aborted (if appropriate)
1552  *      @timeout: timeout for task management control
1553  *
1554  *      Fall through to mpt_HardResetHandler if: not operational, too many
1555  *      failed TM requests or handshake failure.
1556  *
1557  *      Remark: Currently invoked from a non-interrupt thread (_bh).
1558  *
1559  *      Remark: With old EH code, at most 1 SCSI TaskMgmt function per IOC
1560  *      will be active.
1561  *
1562  *      Returns 0 for SUCCESS, or %FAILED.
1563  **/
1564 int
1565 mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1566 {
1567         MPT_ADAPTER     *ioc;
1568         int              rc = -1;
1569         u32              ioc_raw_state;
1570         unsigned long    flags;
1571
1572         ioc = hd->ioc;
1573         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TMHandler Entered!\n", ioc->name));
1574
1575         // SJR - CHECKME - Can we avoid this here?
1576         // (mpt_HardResetHandler has this check...)
1577         spin_lock_irqsave(&ioc->diagLock, flags);
1578         if ((ioc->diagPending) || (ioc->alt_ioc && ioc->alt_ioc->diagPending)) {
1579                 spin_unlock_irqrestore(&ioc->diagLock, flags);
1580                 return FAILED;
1581         }
1582         spin_unlock_irqrestore(&ioc->diagLock, flags);
1583
1584         /*  Wait a fixed amount of time for the TM pending flag to be cleared.
1585          *  If we time out and not bus reset, then we return a FAILED status
1586          *  to the caller.
1587          *  The call to mptscsih_tm_pending_wait() will set the pending flag
1588          *  if we are
1589          *  successful. Otherwise, reload the FW.
1590          */
1591         if (mptscsih_tm_pending_wait(hd) == FAILED) {
1592                 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
1593                         dtmprintk(ioc, printk(KERN_DEBUG MYNAM ": %s: TMHandler abort: "
1594                            "Timed out waiting for last TM (%d) to complete! \n",
1595                            ioc->name, hd->tmPending));
1596                         return FAILED;
1597                 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET) {
1598                         dtmprintk(ioc, printk(KERN_DEBUG MYNAM ": %s: TMHandler target "
1599                                 "reset: Timed out waiting for last TM (%d) "
1600                                 "to complete! \n", ioc->name,
1601                                 hd->tmPending));
1602                         return FAILED;
1603                 } else if (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) {
1604                         dtmprintk(ioc, printk(KERN_DEBUG MYNAM ": %s: TMHandler bus reset: "
1605                            "Timed out waiting for last TM (%d) to complete! \n",
1606                           ioc->name, hd->tmPending));
1607                         return FAILED;
1608                 }
1609         } else {
1610                 spin_lock_irqsave(&hd->ioc->FreeQlock, flags);
1611                 hd->tmPending |=  (1 << type);
1612                 spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
1613         }
1614
1615         ioc_raw_state = mpt_GetIocState(hd->ioc, 0);
1616
1617         if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) {
1618                 printk(MYIOC_s_WARN_FMT
1619                         "TM Handler for type=%x: IOC Not operational (0x%x)!\n",
1620                         ioc->name, type, ioc_raw_state);
1621                 printk(KERN_WARNING " Issuing HardReset!!\n");
1622                 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0)
1623                         printk((KERN_WARNING "TMHandler: HardReset "
1624                                 "FAILED!!\n"));
1625                 return FAILED;
1626         }
1627
1628         if (ioc_raw_state & MPI_DOORBELL_ACTIVE) {
1629                 printk(MYIOC_s_WARN_FMT
1630                         "TM Handler for type=%x: ioc_state: "
1631                         "DOORBELL_ACTIVE (0x%x)!\n",
1632                         ioc->name, type, ioc_raw_state);
1633                 return FAILED;
1634         }
1635
1636         /* Isse the Task Mgmt request.
1637          */
1638         if (hd->hard_resets < -1)
1639                 hd->hard_resets++;
1640
1641         rc = mptscsih_IssueTaskMgmt(hd, type, channel, id, lun,
1642             ctx2abort, timeout);
1643         if (rc)
1644                 printk(MYIOC_s_INFO_FMT "Issue of TaskMgmt failed!\n",
1645                        ioc->name);
1646         else
1647                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issue of TaskMgmt Successful!\n",
1648                            ioc->name));
1649
1650         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
1651                         "TMHandler rc = %d!\n", ioc->name, rc));
1652
1653         return rc;
1654 }
1655
1656
1657 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1658 /**
1659  *      mptscsih_IssueTaskMgmt - Generic send Task Management function.
1660  *      @hd: Pointer to MPT_SCSI_HOST structure
1661  *      @type: Task Management type
1662  *      @channel: channel number for task management
1663  *      @id: Logical Target ID for reset (if appropriate)
1664  *      @lun: Logical Unit for reset (if appropriate)
1665  *      @ctx2abort: Context for the task to be aborted (if appropriate)
1666  *      @timeout: timeout for task management control
1667  *
1668  *      Remark: _HardResetHandler can be invoked from an interrupt thread (timer)
1669  *      or a non-interrupt thread.  In the former, must not call schedule().
1670  *
1671  *      Not all fields are meaningfull for all task types.
1672  *
1673  *      Returns 0 for SUCCESS, or FAILED.
1674  *
1675  **/
1676 static int
1677 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout)
1678 {
1679         MPT_FRAME_HDR   *mf;
1680         SCSITaskMgmt_t  *pScsiTm;
1681         int              ii;
1682         int              retval;
1683
1684         /* Return Fail to calling function if no message frames available.
1685          */
1686         if ((mf = mpt_get_msg_frame(hd->ioc->TaskCtx, hd->ioc)) == NULL) {
1687                 dfailprintk(hd->ioc, printk(MYIOC_s_ERR_FMT "IssueTaskMgmt, no msg frames!!\n",
1688                                 hd->ioc->name));
1689                 return FAILED;
1690         }
1691         dtmprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "IssueTaskMgmt request @ %p\n",
1692                         hd->ioc->name, mf));
1693
1694         /* Format the Request
1695          */
1696         pScsiTm = (SCSITaskMgmt_t *) mf;
1697         pScsiTm->TargetID = id;
1698         pScsiTm->Bus = channel;
1699         pScsiTm->ChainOffset = 0;
1700         pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
1701
1702         pScsiTm->Reserved = 0;
1703         pScsiTm->TaskType = type;
1704         pScsiTm->Reserved1 = 0;
1705         pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS)
1706                     ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0;
1707
1708         int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
1709
1710         for (ii=0; ii < 7; ii++)
1711                 pScsiTm->Reserved2[ii] = 0;
1712
1713         pScsiTm->TaskMsgContext = ctx2abort;
1714
1715         dtmprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "IssueTaskMgmt: ctx2abort (0x%08x) "
1716                 "type=%d\n", hd->ioc->name, ctx2abort, type));
1717
1718         DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
1719
1720         if ((hd->ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
1721             (hd->ioc->facts.MsgVersion >= MPI_VERSION_01_05))
1722                 mpt_put_msg_frame_hi_pri(hd->ioc->TaskCtx, hd->ioc, mf);
1723         else {
1724                 retval = mpt_send_handshake_request(hd->ioc->TaskCtx, hd->ioc,
1725                         sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
1726                 if (retval) {
1727                         dfailprintk(hd->ioc, printk(MYIOC_s_ERR_FMT "send_handshake FAILED!"
1728                         " (hd %p, ioc %p, mf %p, rc=%d) \n", hd->ioc->name, hd,
1729                         hd->ioc, mf, retval));
1730                         goto fail_out;
1731                 }
1732         }
1733
1734         if(mptscsih_tm_wait_for_completion(hd, timeout) == FAILED) {
1735                 dfailprintk(hd->ioc, printk(MYIOC_s_ERR_FMT "task management request TIMED OUT!"
1736                         " (hd %p, ioc %p, mf %p) \n", hd->ioc->name, hd,
1737                         hd->ioc, mf));
1738                 dtmprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "Calling HardReset! \n",
1739                          hd->ioc->name));
1740                 retval = mpt_HardResetHandler(hd->ioc, CAN_SLEEP);
1741                 dtmprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "rc=%d \n",
1742                          hd->ioc->name, retval));
1743                 goto fail_out;
1744         }
1745
1746         /*
1747          * Handle success case, see if theres a non-zero ioc_status.
1748          */
1749         if (hd->tm_iocstatus == MPI_IOCSTATUS_SUCCESS ||
1750            hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED ||
1751            hd->tm_iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED)
1752                 retval = 0;
1753         else
1754                 retval = FAILED;
1755
1756         return retval;
1757
1758  fail_out:
1759
1760         /*
1761          * Free task managment mf, and corresponding tm flags
1762          */
1763         mpt_free_msg_frame(hd->ioc, mf);
1764         hd->tmPending = 0;
1765         hd->tmState = TM_STATE_NONE;
1766         return FAILED;
1767 }
1768
1769 static int
1770 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc)
1771 {
1772         switch (ioc->bus_type) {
1773         case FC:
1774                 return 40;
1775         case SAS:
1776                 return 10;
1777         case SPI:
1778         default:
1779                 return 2;
1780         }
1781 }
1782
1783 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1784 /**
1785  *      mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant
1786  *      @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted
1787  *
1788  *      (linux scsi_host_template.eh_abort_handler routine)
1789  *
1790  *      Returns SUCCESS or FAILED.
1791  **/
1792 int
1793 mptscsih_abort(struct scsi_cmnd * SCpnt)
1794 {
1795         MPT_SCSI_HOST   *hd;
1796         MPT_FRAME_HDR   *mf;
1797         u32              ctx2abort;
1798         int              scpnt_idx;
1799         int              retval;
1800         VirtDevice       *vdevice;
1801         ulong            sn = SCpnt->serial_number;
1802         MPT_ADAPTER     *ioc;
1803
1804         /* If we can't locate our host adapter structure, return FAILED status.
1805          */
1806         if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL) {
1807                 SCpnt->result = DID_RESET << 16;
1808                 SCpnt->scsi_done(SCpnt);
1809                 printk(KERN_DEBUG MYNAM ": mptscsih_abort: Can't locate "
1810                     "host! (sc=%p)\n", SCpnt);
1811                 return FAILED;
1812         }
1813
1814         ioc = hd->ioc;
1815         printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n",
1816                ioc->name, SCpnt);
1817         scsi_print_command(SCpnt);
1818
1819         vdevice = SCpnt->device->hostdata;
1820         if (!vdevice || !vdevice->vtarget) {
1821                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: device has been "
1822                     "deleted (sc=%p)\n", ioc->name, SCpnt));
1823                 SCpnt->result = DID_NO_CONNECT << 16;
1824                 SCpnt->scsi_done(SCpnt);
1825                 retval = 0;
1826                 goto out;
1827         }
1828
1829         /* Task aborts are not supported for hidden raid components.
1830          */
1831         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1832                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: hidden raid "
1833                     "component (sc=%p)\n", ioc->name, SCpnt));
1834                 SCpnt->result = DID_RESET << 16;
1835                 retval = FAILED;
1836                 goto out;
1837         }
1838
1839         /* Find this command
1840          */
1841         if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(SCpnt)) < 0) {
1842                 /* Cmd not found in ScsiLookup.
1843                  * Do OS callback.
1844                  */
1845                 SCpnt->result = DID_RESET << 16;
1846                 dtmprintk(ioc, printk(KERN_DEBUG MYNAM ": %s: mptscsih_abort: "
1847                    "Command not in the active list! (sc=%p)\n", ioc->name,
1848                    SCpnt));
1849                 retval = 0;
1850                 goto out;
1851         }
1852
1853         if (hd->resetPending) {
1854                 retval = FAILED;
1855                 goto out;
1856         }
1857
1858         if (hd->timeouts < -1)
1859                 hd->timeouts++;
1860
1861         /* Most important!  Set TaskMsgContext to SCpnt's MsgContext!
1862          * (the IO to be ABORT'd)
1863          *
1864          * NOTE: Since we do not byteswap MsgContext, we do not
1865          *       swap it here either.  It is an opaque cookie to
1866          *       the controller, so it does not matter. -DaveM
1867          */
1868         mf = MPT_INDEX_2_MFPTR(hd->ioc, scpnt_idx);
1869         ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext;
1870
1871         hd->abortSCpnt = SCpnt;
1872
1873         retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
1874             vdevice->vtarget->channel, vdevice->vtarget->id, vdevice->lun,
1875             ctx2abort, mptscsih_get_tm_timeout(ioc));
1876
1877         if (SCPNT_TO_LOOKUP_IDX(SCpnt) == scpnt_idx &&
1878             SCpnt->serial_number == sn)
1879                 retval = FAILED;
1880
1881  out:
1882         printk(MYIOC_s_INFO_FMT "task abort: %s (sc=%p)\n",
1883             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1884
1885         if (retval == 0)
1886                 return SUCCESS;
1887         else
1888                 return FAILED;
1889 }
1890
1891 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1892 /**
1893  *      mptscsih_dev_reset - Perform a SCSI TARGET_RESET!  new_eh variant
1894  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1895  *
1896  *      (linux scsi_host_template.eh_dev_reset_handler routine)
1897  *
1898  *      Returns SUCCESS or FAILED.
1899  **/
1900 int
1901 mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
1902 {
1903         MPT_SCSI_HOST   *hd;
1904         int              retval;
1905         VirtDevice       *vdevice;
1906         MPT_ADAPTER     *ioc;
1907
1908         /* If we can't locate our host adapter structure, return FAILED status.
1909          */
1910         if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL){
1911                 printk(KERN_DEBUG MYNAM ": mptscsih_dev_reset: Can't "
1912                     "locate host! (sc=%p)\n", SCpnt);
1913                 return FAILED;
1914         }
1915
1916         ioc = hd->ioc;
1917         printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n",
1918                ioc->name, SCpnt);
1919         scsi_print_command(SCpnt);
1920
1921         if (hd->resetPending) {
1922                 retval = FAILED;
1923                 goto out;
1924         }
1925
1926         vdevice = SCpnt->device->hostdata;
1927         if (!vdevice || !vdevice->vtarget) {
1928                 retval = 0;
1929                 goto out;
1930         }
1931
1932         /* Target reset to hidden raid component is not supported
1933          */
1934         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1935                 retval = FAILED;
1936                 goto out;
1937         }
1938
1939         retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
1940             vdevice->vtarget->channel, vdevice->vtarget->id, 0, 0,
1941             mptscsih_get_tm_timeout(ioc));
1942
1943  out:
1944         printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n",
1945             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1946
1947         if (retval == 0)
1948                 return SUCCESS;
1949         else
1950                 return FAILED;
1951 }
1952
1953
1954 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
1955 /**
1956  *      mptscsih_bus_reset - Perform a SCSI BUS_RESET!  new_eh variant
1957  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
1958  *
1959  *      (linux scsi_host_template.eh_bus_reset_handler routine)
1960  *
1961  *      Returns SUCCESS or FAILED.
1962  **/
1963 int
1964 mptscsih_bus_reset(struct scsi_cmnd * SCpnt)
1965 {
1966         MPT_SCSI_HOST   *hd;
1967         int              retval;
1968         VirtDevice       *vdev;
1969         MPT_ADAPTER     *ioc;
1970
1971         /* If we can't locate our host adapter structure, return FAILED status.
1972          */
1973         if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL){
1974                 printk(KERN_DEBUG MYNAM ": mptscsih_bus_reset: Can't "
1975                     "locate host! (sc=%p)\n", SCpnt );
1976                 return FAILED;
1977         }
1978
1979         ioc = hd->ioc;
1980         printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n",
1981                ioc->name, SCpnt);
1982         scsi_print_command(SCpnt);
1983
1984         if (hd->timeouts < -1)
1985                 hd->timeouts++;
1986
1987         vdev = SCpnt->device->hostdata;
1988         retval = mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
1989             vdev->vtarget->channel, 0, 0, 0, mptscsih_get_tm_timeout(ioc));
1990
1991         printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n",
1992             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
1993
1994         if (retval == 0)
1995                 return SUCCESS;
1996         else
1997                 return FAILED;
1998 }
1999
2000 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2001 /**
2002  *      mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant)
2003  *      @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to
2004  *
2005  *      (linux scsi_host_template.eh_host_reset_handler routine)
2006  *
2007  *      Returns SUCCESS or FAILED.
2008  */
2009 int
2010 mptscsih_host_reset(struct scsi_cmnd *SCpnt)
2011 {
2012         MPT_SCSI_HOST *  hd;
2013         int              retval;
2014         MPT_ADAPTER     *ioc;
2015
2016         /*  If we can't locate the host to reset, then we failed. */
2017         if ((hd = (MPT_SCSI_HOST *) SCpnt->device->host->hostdata) == NULL){
2018                 printk( KERN_DEBUG MYNAM ": mptscsih_host_reset: Can't "
2019                     "locate host! (sc=%p)\n", SCpnt);
2020                 return FAILED;
2021         }
2022
2023         ioc = hd->ioc;
2024         printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n",
2025             ioc->name, SCpnt);
2026
2027         /*  If our attempts to reset the host failed, then return a failed
2028          *  status.  The host will be taken off line by the SCSI mid-layer.
2029          */
2030         if (mpt_HardResetHandler(hd->ioc, CAN_SLEEP) < 0) {
2031                 retval = FAILED;
2032         } else {
2033                 /*  Make sure TM pending is cleared and TM state is set to
2034                  *  NONE.
2035                  */
2036                 retval = 0;
2037                 hd->tmPending = 0;
2038                 hd->tmState = TM_STATE_NONE;
2039         }
2040
2041         printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n",
2042             ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt);
2043
2044         return retval;
2045 }
2046
2047 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2048 /**
2049  *      mptscsih_tm_pending_wait - wait for pending task management request to complete
2050  *      @hd: Pointer to MPT host structure.
2051  *
2052  *      Returns {SUCCESS,FAILED}.
2053  */
2054 static int
2055 mptscsih_tm_pending_wait(MPT_SCSI_HOST * hd)
2056 {
2057         unsigned long  flags;
2058         int            loop_count = 4 * 10;  /* Wait 10 seconds */
2059         int            status = FAILED;
2060
2061         do {
2062                 spin_lock_irqsave(&hd->ioc->FreeQlock, flags);
2063                 if (hd->tmState == TM_STATE_NONE) {
2064                         hd->tmState = TM_STATE_IN_PROGRESS;
2065                         hd->tmPending = 1;
2066                         spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
2067                         status = SUCCESS;
2068                         break;
2069                 }
2070                 spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
2071                 msleep(250);
2072         } while (--loop_count);
2073
2074         return status;
2075 }
2076
2077 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2078 /**
2079  *      mptscsih_tm_wait_for_completion - wait for completion of TM task
2080  *      @hd: Pointer to MPT host structure.
2081  *      @timeout: timeout value
2082  *
2083  *      Returns {SUCCESS,FAILED}.
2084  */
2085 static int
2086 mptscsih_tm_wait_for_completion(MPT_SCSI_HOST * hd, ulong timeout )
2087 {
2088         unsigned long  flags;
2089         int            loop_count = 4 * timeout;
2090         int            status = FAILED;
2091
2092         do {
2093                 spin_lock_irqsave(&hd->ioc->FreeQlock, flags);
2094                 if(hd->tmPending == 0) {
2095                         status = SUCCESS;
2096                         spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
2097                         break;
2098                 }
2099                 spin_unlock_irqrestore(&hd->ioc->FreeQlock, flags);
2100                 msleep(250);
2101         } while (--loop_count);
2102
2103         return status;
2104 }
2105
2106 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2107 static void
2108 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
2109 {
2110         char *desc;
2111
2112         switch (response_code) {
2113         case MPI_SCSITASKMGMT_RSP_TM_COMPLETE:
2114                 desc = "The task completed.";
2115                 break;
2116         case MPI_SCSITASKMGMT_RSP_INVALID_FRAME:
2117                 desc = "The IOC received an invalid frame status.";
2118                 break;
2119         case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2120                 desc = "The task type is not supported.";
2121                 break;
2122         case MPI_SCSITASKMGMT_RSP_TM_FAILED:
2123                 desc = "The requested task failed.";
2124                 break;
2125         case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2126                 desc = "The task completed successfully.";
2127                 break;
2128         case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2129                 desc = "The LUN request is invalid.";
2130                 break;
2131         case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2132                 desc = "The task is in the IOC queue and has not been sent to target.";
2133                 break;
2134         default:
2135                 desc = "unknown";
2136                 break;
2137         }
2138         printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
2139                 ioc->name, response_code, desc);
2140 }
2141
2142 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2143 /**
2144  *      mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver
2145  *      @ioc: Pointer to MPT_ADAPTER structure
2146  *      @mf: Pointer to SCSI task mgmt request frame
2147  *      @mr: Pointer to SCSI task mgmt reply frame
2148  *
2149  *      This routine is called from mptbase.c::mpt_interrupt() at the completion
2150  *      of any SCSI task management request.
2151  *      This routine is registered with the MPT (base) driver at driver
2152  *      load/init time via the mpt_register() API call.
2153  *
2154  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2155  **/
2156 int
2157 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2158 {
2159         SCSITaskMgmtReply_t     *pScsiTmReply;
2160         SCSITaskMgmt_t          *pScsiTmReq;
2161         MPT_SCSI_HOST           *hd;
2162         unsigned long            flags;
2163         u16                      iocstatus;
2164         u8                       tmType;
2165         u32                      termination_count;
2166
2167         dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt completed (mf=%p,mr=%p)\n",
2168             ioc->name, mf, mr));
2169         if (!ioc->sh) {
2170                 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
2171                     "TaskMgmt Complete: NULL Scsi Host Ptr\n", ioc->name));
2172                 return 1;
2173         }
2174
2175         if (mr == NULL) {
2176                 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
2177                     "ERROR! TaskMgmt Reply: NULL Request %p\n", ioc->name, mf));
2178                 return 1;
2179         }
2180
2181         hd = (MPT_SCSI_HOST *)ioc->sh->hostdata;
2182         pScsiTmReply = (SCSITaskMgmtReply_t*)mr;
2183         pScsiTmReq = (SCSITaskMgmt_t*)mf;
2184         tmType = pScsiTmReq->TaskType;
2185         iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2186         termination_count = le32_to_cpu(pScsiTmReply->TerminationCount);
2187
2188         if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 &&
2189             pScsiTmReply->ResponseCode)
2190                 mptscsih_taskmgmt_response_code(ioc,
2191                     pScsiTmReply->ResponseCode);
2192         DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply);
2193
2194 #ifdef CONFIG_FUSION_LOGGING
2195         if ((ioc->debug_level & MPT_DEBUG_REPLY) ||
2196                                 (ioc->debug_level & MPT_DEBUG_TM ))
2197                 printk("%s: ha=%d [%d:%d:0] task_type=0x%02X "
2198                         "iocstatus=0x%04X\n\tloginfo=0x%08X response_code=0x%02X "
2199                         "term_cmnds=%d\n", __FUNCTION__, ioc->id, pScsiTmReply->Bus,
2200                          pScsiTmReply->TargetID, pScsiTmReq->TaskType,
2201                         le16_to_cpu(pScsiTmReply->IOCStatus),
2202                         le32_to_cpu(pScsiTmReply->IOCLogInfo),pScsiTmReply->ResponseCode,
2203                         le32_to_cpu(pScsiTmReply->TerminationCount));
2204 #endif
2205         if (!iocstatus) {
2206                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT " TaskMgmt SUCCESS\n", ioc->name));
2207                         hd->abortSCpnt = NULL;
2208                 goto out;
2209         }
2210
2211         /* Error?  (anything non-zero?) */
2212
2213         /* clear flags and continue.
2214          */
2215         switch (tmType) {
2216
2217         case MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2218                 if (termination_count == 1)
2219                         iocstatus = MPI_IOCSTATUS_SCSI_TASK_TERMINATED;
2220                 hd->abortSCpnt = NULL;
2221                 break;
2222
2223         case MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS:
2224
2225                 /* If an internal command is present
2226                  * or the TM failed - reload the FW.
2227                  * FC FW may respond FAILED to an ABORT
2228                  */
2229                 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED ||
2230                     hd->cmdPtr)
2231                         if (mpt_HardResetHandler(ioc, NO_SLEEP) < 0)
2232                                 printk((KERN_WARNING " Firmware Reload FAILED!!\n"));
2233                 break;
2234
2235         case MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2236         default:
2237                 break;
2238         }
2239
2240  out:
2241         spin_lock_irqsave(&ioc->FreeQlock, flags);
2242         hd->tmPending = 0;
2243         hd->tmState = TM_STATE_NONE;
2244         hd->tm_iocstatus = iocstatus;
2245         spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2246
2247         return 1;
2248 }
2249
2250 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2251 /*
2252  *      This is anyones guess quite frankly.
2253  */
2254 int
2255 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev,
2256                 sector_t capacity, int geom[])
2257 {
2258         int             heads;
2259         int             sectors;
2260         sector_t        cylinders;
2261         ulong           dummy;
2262
2263         heads = 64;
2264         sectors = 32;
2265
2266         dummy = heads * sectors;
2267         cylinders = capacity;
2268         sector_div(cylinders,dummy);
2269
2270         /*
2271          * Handle extended translation size for logical drives
2272          * > 1Gb
2273          */
2274         if ((ulong)capacity >= 0x200000) {
2275                 heads = 255;
2276                 sectors = 63;
2277                 dummy = heads * sectors;
2278                 cylinders = capacity;
2279                 sector_div(cylinders,dummy);
2280         }
2281
2282         /* return result */
2283         geom[0] = heads;
2284         geom[1] = sectors;
2285         geom[2] = cylinders;
2286
2287         return 0;
2288 }
2289
2290 /* Search IOC page 3 to determine if this is hidden physical disk
2291  *
2292  */
2293 int
2294 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id)
2295 {
2296         struct inactive_raid_component_info *component_info;
2297         int i;
2298         int rc = 0;
2299
2300         if (!ioc->raid_data.pIocPg3)
2301                 goto out;
2302         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2303                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2304                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2305                         rc = 1;
2306                         goto out;
2307                 }
2308         }
2309
2310         /*
2311          * Check inactive list for matching phys disks
2312          */
2313         if (list_empty(&ioc->raid_data.inactive_list))
2314                 goto out;
2315
2316         down(&ioc->raid_data.inactive_list_mutex);
2317         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2318             list) {
2319                 if ((component_info->d.PhysDiskID == id) &&
2320                     (component_info->d.PhysDiskBus == channel))
2321                         rc = 1;
2322         }
2323         up(&ioc->raid_data.inactive_list_mutex);
2324
2325  out:
2326         return rc;
2327 }
2328 EXPORT_SYMBOL(mptscsih_is_phys_disk);
2329
2330 u8
2331 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2332 {
2333         struct inactive_raid_component_info *component_info;
2334         int i;
2335         int rc = -ENXIO;
2336
2337         if (!ioc->raid_data.pIocPg3)
2338                 goto out;
2339         for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) {
2340                 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) &&
2341                     (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) {
2342                         rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum;
2343                         goto out;
2344                 }
2345         }
2346
2347         /*
2348          * Check inactive list for matching phys disks
2349          */
2350         if (list_empty(&ioc->raid_data.inactive_list))
2351                 goto out;
2352
2353         down(&ioc->raid_data.inactive_list_mutex);
2354         list_for_each_entry(component_info, &ioc->raid_data.inactive_list,
2355             list) {
2356                 if ((component_info->d.PhysDiskID == id) &&
2357                     (component_info->d.PhysDiskBus == channel))
2358                         rc = component_info->d.PhysDiskNum;
2359         }
2360         up(&ioc->raid_data.inactive_list_mutex);
2361
2362  out:
2363         return rc;
2364 }
2365 EXPORT_SYMBOL(mptscsih_raid_id_to_num);
2366
2367 /*
2368  *      OS entry point to allow for host driver to free allocated memory
2369  *      Called if no device present or device being unloaded
2370  */
2371 void
2372 mptscsih_slave_destroy(struct scsi_device *sdev)
2373 {
2374         struct Scsi_Host        *host = sdev->host;
2375         MPT_SCSI_HOST           *hd = (MPT_SCSI_HOST *)host->hostdata;
2376         VirtTarget              *vtarget;
2377         VirtDevice              *vdevice;
2378         struct scsi_target      *starget;
2379
2380         starget = scsi_target(sdev);
2381         vtarget = starget->hostdata;
2382         vdevice = sdev->hostdata;
2383
2384         mptscsih_search_running_cmds(hd, vdevice);
2385         vtarget->num_luns--;
2386         mptscsih_synchronize_cache(hd, vdevice);
2387         kfree(vdevice);
2388         sdev->hostdata = NULL;
2389 }
2390
2391 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2392 /*
2393  *      mptscsih_change_queue_depth - This function will set a devices queue depth
2394  *      @sdev: per scsi_device pointer
2395  *      @qdepth: requested queue depth
2396  *
2397  *      Adding support for new 'change_queue_depth' api.
2398 */
2399 int
2400 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
2401 {
2402         MPT_SCSI_HOST           *hd = (MPT_SCSI_HOST *)sdev->host->hostdata;
2403         VirtTarget              *vtarget;
2404         struct scsi_target      *starget;
2405         int                     max_depth;
2406         int                     tagged;
2407
2408         starget = scsi_target(sdev);
2409         vtarget = starget->hostdata;
2410
2411         if (hd->ioc->bus_type == SPI) {
2412                 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
2413                         max_depth = 1;
2414                 else if (sdev->type == TYPE_DISK &&
2415                          vtarget->minSyncFactor <= MPT_ULTRA160)
2416                         max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2417                 else
2418                         max_depth = MPT_SCSI_CMD_PER_DEV_LOW;
2419         } else
2420                 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH;
2421
2422         if (qdepth > max_depth)
2423                 qdepth = max_depth;
2424         if (qdepth == 1)
2425                 tagged = 0;
2426         else
2427                 tagged = MSG_SIMPLE_TAG;
2428
2429         scsi_adjust_queue_depth(sdev, tagged, qdepth);
2430         return sdev->queue_depth;
2431 }
2432
2433 /*
2434  *      OS entry point to adjust the queue_depths on a per-device basis.
2435  *      Called once per device the bus scan. Use it to force the queue_depth
2436  *      member to 1 if a device does not support Q tags.
2437  *      Return non-zero if fails.
2438  */
2439 int
2440 mptscsih_slave_configure(struct scsi_device *sdev)
2441 {
2442         struct Scsi_Host        *sh = sdev->host;
2443         VirtTarget              *vtarget;
2444         VirtDevice              *vdevice;
2445         struct scsi_target      *starget;
2446         MPT_SCSI_HOST           *hd = (MPT_SCSI_HOST *)sh->hostdata;
2447
2448         starget = scsi_target(sdev);
2449         vtarget = starget->hostdata;
2450         vdevice = sdev->hostdata;
2451
2452         dsprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT
2453                 "device @ %p, channel=%d, id=%d, lun=%d\n",
2454                 hd->ioc->name, sdev, sdev->channel, sdev->id, sdev->lun));
2455         if (hd->ioc->bus_type == SPI)
2456                 dsprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT
2457                     "sdtr %d wdtr %d ppr %d inq length=%d\n",
2458                     hd->ioc->name, sdev->sdtr, sdev->wdtr,
2459                     sdev->ppr, sdev->inquiry_len));
2460
2461         if (sdev->id > sh->max_id) {
2462                 /* error case, should never happen */
2463                 scsi_adjust_queue_depth(sdev, 0, 1);
2464                 goto slave_configure_exit;
2465         }
2466
2467         vdevice->configured_lun = 1;
2468         mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
2469
2470         dsprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT
2471                 "Queue depth=%d, tflags=%x\n",
2472                 hd->ioc->name, sdev->queue_depth, vtarget->tflags));
2473
2474         if (hd->ioc->bus_type == SPI)
2475                 dsprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT
2476                     "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n",
2477                     hd->ioc->name, vtarget->negoFlags, vtarget->maxOffset,
2478                     vtarget->minSyncFactor));
2479
2480 slave_configure_exit:
2481
2482         dsprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT
2483                 "tagged %d, simple %d, ordered %d\n",
2484                 hd->ioc->name,sdev->tagged_supported, sdev->simple_tags,
2485                 sdev->ordered_tags));
2486
2487         return 0;
2488 }
2489
2490 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2491 /*
2492  *  Private routines...
2493  */
2494
2495 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2496 /* Utility function to copy sense data from the scsi_cmnd buffer
2497  * to the FC and SCSI target structures.
2498  *
2499  */
2500 static void
2501 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply)
2502 {
2503         VirtDevice      *vdev;
2504         SCSIIORequest_t *pReq;
2505         u32              sense_count = le32_to_cpu(pScsiReply->SenseCount);
2506
2507         /* Get target structure
2508          */
2509         pReq = (SCSIIORequest_t *) mf;
2510         vdev = sc->device->hostdata;
2511
2512         if (sense_count) {
2513                 u8 *sense_data;
2514                 int req_index;
2515
2516                 /* Copy the sense received into the scsi command block. */
2517                 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2518                 sense_data = ((u8 *)hd->ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
2519                 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
2520
2521                 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
2522                  */
2523                 if ((hd->ioc->events) && (hd->ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) {
2524                         if ((sense_data[12] == 0x5D) && (vdev->vtarget->raidVolume == 0)) {
2525                                 int idx;
2526                                 MPT_ADAPTER *ioc = hd->ioc;
2527
2528                                 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE;
2529                                 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE;
2530                                 ioc->events[idx].eventContext = ioc->eventContext;
2531
2532                                 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) |
2533                                         (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) |
2534                                         (sc->device->channel << 8) | sc->device->id;
2535
2536                                 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12];
2537
2538                                 ioc->eventContext++;
2539                                 if (hd->ioc->pcidev->vendor ==
2540                                     PCI_VENDOR_ID_IBM) {
2541                                         mptscsih_issue_sep_command(hd->ioc,
2542                                             vdev->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
2543                                         vdev->vtarget->tflags |=
2544                                             MPT_TARGET_FLAGS_LED_ON;
2545                                 }
2546                         }
2547                 }
2548         } else {
2549                 dprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n",
2550                                 hd->ioc->name));
2551         }
2552 }
2553
2554 static int
2555 SCPNT_TO_LOOKUP_IDX(struct scsi_cmnd *sc)
2556 {
2557         MPT_SCSI_HOST *hd;
2558         int i;
2559
2560         hd = (MPT_SCSI_HOST *) sc->device->host->hostdata;
2561
2562         for (i = 0; i < hd->ioc->req_depth; i++) {
2563                 if (hd->ScsiLookup[i] == sc) {
2564                         return i;
2565                 }
2566         }
2567
2568         return -1;
2569 }
2570
2571 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2572 int
2573 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
2574 {
2575         MPT_SCSI_HOST   *hd;
2576         unsigned long    flags;
2577         int             ii;
2578
2579         dtmprintk(ioc, printk(KERN_DEBUG MYNAM
2580                         ": IOC %s_reset routed to SCSI host driver!\n",
2581                         reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
2582                         reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
2583
2584         /* If a FW reload request arrives after base installed but
2585          * before all scsi hosts have been attached, then an alt_ioc
2586          * may have a NULL sh pointer.
2587          */
2588         if ((ioc->sh == NULL) || (ioc->sh->hostdata == NULL))
2589                 return 0;
2590         else
2591                 hd = (MPT_SCSI_HOST *) ioc->sh->hostdata;
2592
2593         if (reset_phase == MPT_IOC_SETUP_RESET) {
2594                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Setup-Diag Reset\n", ioc->name));
2595
2596                 /* Clean Up:
2597                  * 1. Set Hard Reset Pending Flag
2598                  * All new commands go to doneQ
2599                  */
2600                 hd->resetPending = 1;
2601
2602         } else if (reset_phase == MPT_IOC_PRE_RESET) {
2603                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Pre-Diag Reset\n", ioc->name));
2604
2605                 /* 2. Flush running commands
2606                  *      Clean ScsiLookup (and associated memory)
2607                  *      AND clean mytaskQ
2608                  */
2609
2610                 /* 2b. Reply to OS all known outstanding I/O commands.
2611                  */
2612                 mptscsih_flush_running_cmds(hd);
2613
2614                 /* 2c. If there was an internal command that
2615                  * has not completed, configuration or io request,
2616                  * free these resources.
2617                  */
2618                 if (hd->cmdPtr) {
2619                         del_timer(&hd->timer);
2620                         mpt_free_msg_frame(ioc, hd->cmdPtr);
2621                 }
2622
2623                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Pre-Reset complete.\n", ioc->name));
2624
2625         } else {
2626                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Post-Diag Reset\n", ioc->name));
2627
2628                 /* Once a FW reload begins, all new OS commands are
2629                  * redirected to the doneQ w/ a reset status.
2630                  * Init all control structures.
2631                  */
2632
2633                 /* ScsiLookup initialization
2634                  */
2635                 for (ii=0; ii < hd->ioc->req_depth; ii++)
2636                         hd->ScsiLookup[ii] = NULL;
2637
2638                 /* 2. Chain Buffer initialization
2639                  */
2640
2641                 /* 4. Renegotiate to all devices, if SPI
2642                  */
2643
2644                 /* 5. Enable new commands to be posted
2645                  */
2646                 spin_lock_irqsave(&ioc->FreeQlock, flags);
2647                 hd->tmPending = 0;
2648                 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2649                 hd->resetPending = 0;
2650                 hd->tmState = TM_STATE_NONE;
2651
2652                 /* 6. If there was an internal command,
2653                  * wake this process up.
2654                  */
2655                 if (hd->cmdPtr) {
2656                         /*
2657                          * Wake up the original calling thread
2658                          */
2659                         hd->pLocal = &hd->localReply;
2660                         hd->pLocal->completion = MPT_SCANDV_DID_RESET;
2661                         hd->scandv_wait_done = 1;
2662                         wake_up(&hd->scandv_waitq);
2663                         hd->cmdPtr = NULL;
2664                 }
2665
2666                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Post-Reset complete.\n", ioc->name));
2667
2668         }
2669
2670         return 1;               /* currently means nothing really */
2671 }
2672
2673 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2674 int
2675 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
2676 {
2677         MPT_SCSI_HOST *hd;
2678         u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
2679
2680         devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
2681                         ioc->name, event));
2682
2683         if (ioc->sh == NULL ||
2684                 ((hd = (MPT_SCSI_HOST *)ioc->sh->hostdata) == NULL))
2685                 return 1;
2686
2687         switch (event) {
2688         case MPI_EVENT_UNIT_ATTENTION:                  /* 03 */
2689                 /* FIXME! */
2690                 break;
2691         case MPI_EVENT_IOC_BUS_RESET:                   /* 04 */
2692         case MPI_EVENT_EXT_BUS_RESET:                   /* 05 */
2693                 if (hd && (ioc->bus_type == SPI) && (hd->soft_resets < -1))
2694                         hd->soft_resets++;
2695                 break;
2696         case MPI_EVENT_LOGOUT:                          /* 09 */
2697                 /* FIXME! */
2698                 break;
2699
2700         case MPI_EVENT_RESCAN:                          /* 06 */
2701                 break;
2702
2703                 /*
2704                  *  CHECKME! Don't think we need to do
2705                  *  anything for these, but...
2706                  */
2707         case MPI_EVENT_LINK_STATUS_CHANGE:              /* 07 */
2708         case MPI_EVENT_LOOP_STATE_CHANGE:               /* 08 */
2709                 /*
2710                  *  CHECKME!  Falling thru...
2711                  */
2712                 break;
2713
2714         case MPI_EVENT_INTEGRATED_RAID:                 /* 0B */
2715                 break;
2716
2717         case MPI_EVENT_NONE:                            /* 00 */
2718         case MPI_EVENT_LOG_DATA:                        /* 01 */
2719         case MPI_EVENT_STATE_CHANGE:                    /* 02 */
2720         case MPI_EVENT_EVENT_CHANGE:                    /* 0A */
2721         default:
2722                 dprintk(ioc, printk(KERN_DEBUG MYNAM ": Ignoring event (=%02Xh)\n", event));
2723                 break;
2724         }
2725
2726         return 1;               /* currently means nothing really */
2727 }
2728
2729 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2730 /*
2731  *  Bus Scan and Domain Validation functionality ...
2732  */
2733
2734 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2735 /*
2736  *      mptscsih_scandv_complete - Scan and DV callback routine registered
2737  *      to Fustion MPT (base) driver.
2738  *
2739  *      @ioc: Pointer to MPT_ADAPTER structure
2740  *      @mf: Pointer to original MPT request frame
2741  *      @mr: Pointer to MPT reply frame (NULL if TurboReply)
2742  *
2743  *      This routine is called from mpt.c::mpt_interrupt() at the completion
2744  *      of any SCSI IO request.
2745  *      This routine is registered with the Fusion MPT (base) driver at driver
2746  *      load/init time via the mpt_register() API call.
2747  *
2748  *      Returns 1 indicating alloc'd request frame ptr should be freed.
2749  *
2750  *      Remark: Sets a completion code and (possibly) saves sense data
2751  *      in the IOC member localReply structure.
2752  *      Used ONLY for DV and other internal commands.
2753  */
2754 int
2755 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
2756 {
2757         MPT_SCSI_HOST   *hd;
2758         SCSIIORequest_t *pReq;
2759         int              completionCode;
2760         u16              req_idx;
2761
2762         hd = (MPT_SCSI_HOST *) ioc->sh->hostdata;
2763
2764         if ((mf == NULL) ||
2765             (mf >= MPT_INDEX_2_MFPTR(ioc, ioc->req_depth))) {
2766                 printk(MYIOC_s_ERR_FMT
2767                         "ScanDvComplete, %s req frame ptr! (=%p)\n",
2768                                 ioc->name, mf?"BAD":"NULL", (void *) mf);
2769                 goto wakeup;
2770         }
2771
2772         del_timer(&hd->timer);
2773         req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
2774         hd->ScsiLookup[req_idx] = NULL;
2775         pReq = (SCSIIORequest_t *) mf;
2776
2777         if (mf != hd->cmdPtr) {
2778                 printk(MYIOC_s_WARN_FMT "ScanDvComplete (mf=%p, cmdPtr=%p, idx=%d)\n",
2779                                 hd->ioc->name, (void *)mf, (void *) hd->cmdPtr, req_idx);
2780         }
2781         hd->cmdPtr = NULL;
2782
2783         ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScanDvComplete (mf=%p,mr=%p,idx=%d)\n",
2784                         hd->ioc->name, mf, mr, req_idx));
2785
2786         hd->pLocal = &hd->localReply;
2787         hd->pLocal->scsiStatus = 0;
2788
2789         /* If target struct exists, clear sense valid flag.
2790          */
2791         if (mr == NULL) {
2792                 completionCode = MPT_SCANDV_GOOD;
2793         } else {
2794                 SCSIIOReply_t   *pReply;
2795                 u16              status;
2796                 u8               scsi_status;
2797
2798                 pReply = (SCSIIOReply_t *) mr;
2799
2800                 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK;
2801                 scsi_status = pReply->SCSIStatus;
2802
2803
2804                 switch(status) {
2805
2806                 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:       /* 0x0043 */
2807                         completionCode = MPT_SCANDV_SELECTION_TIMEOUT;
2808                         break;
2809
2810                 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:          /* 0x0046 */
2811                 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:        /* 0x0048 */
2812                 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:         /* 0x004B */
2813                 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:         /* 0x004C */
2814                         completionCode = MPT_SCANDV_DID_RESET;
2815                         break;
2816
2817                 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:          /* 0x0045 */
2818                 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:        /* 0x0040 */
2819                 case MPI_IOCSTATUS_SUCCESS:                     /* 0x0000 */
2820                         if (pReply->Function == MPI_FUNCTION_CONFIG) {
2821                                 ConfigReply_t *pr = (ConfigReply_t *)mr;
2822                                 completionCode = MPT_SCANDV_GOOD;
2823                                 hd->pLocal->header.PageVersion = pr->Header.PageVersion;
2824                                 hd->pLocal->header.PageLength = pr->Header.PageLength;
2825                                 hd->pLocal->header.PageNumber = pr->Header.PageNumber;
2826                                 hd->pLocal->header.PageType = pr->Header.PageType;
2827
2828                         } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) {
2829                                 /* If the RAID Volume request is successful,
2830                                  * return GOOD, else indicate that
2831                                  * some type of error occurred.
2832                                  */
2833                                 MpiRaidActionReply_t    *pr = (MpiRaidActionReply_t *)mr;
2834                                 if (le16_to_cpu(pr->ActionStatus) == MPI_RAID_ACTION_ASTATUS_SUCCESS)
2835                                         completionCode = MPT_SCANDV_GOOD;
2836                                 else
2837                                         completionCode = MPT_SCANDV_SOME_ERROR;
2838                                 memcpy(hd->pLocal->sense, pr, sizeof(hd->pLocal->sense));
2839
2840                         } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
2841                                 u8              *sense_data;
2842                                 int              sz;
2843
2844                                 /* save sense data in global structure
2845                                  */
2846                                 completionCode = MPT_SCANDV_SENSE;
2847                                 hd->pLocal->scsiStatus = scsi_status;
2848                                 sense_data = ((u8 *)hd->ioc->sense_buf_pool +
2849                                         (req_idx * MPT_SENSE_BUFFER_ALLOC));
2850
2851                                 sz = min_t(int, pReq->SenseBufferLength,
2852                                                         SCSI_STD_SENSE_BYTES);
2853                                 memcpy(hd->pLocal->sense, sense_data, sz);
2854
2855                                 ddvprintk(ioc, printk(KERN_DEBUG "  Check Condition, sense ptr %p\n",
2856                                                 sense_data));
2857                         } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
2858                                 if (pReq->CDB[0] == INQUIRY)
2859                                         completionCode = MPT_SCANDV_ISSUE_SENSE;
2860                                 else
2861                                         completionCode = MPT_SCANDV_DID_RESET;
2862                         }
2863                         else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS)
2864                                 completionCode = MPT_SCANDV_DID_RESET;
2865                         else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2866                                 completionCode = MPT_SCANDV_DID_RESET;
2867                         else {
2868                                 completionCode = MPT_SCANDV_GOOD;
2869                                 hd->pLocal->scsiStatus = scsi_status;
2870                         }
2871                         break;
2872
2873                 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:         /* 0x0047 */
2874                         if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED)
2875                                 completionCode = MPT_SCANDV_DID_RESET;
2876                         else
2877                                 completionCode = MPT_SCANDV_SOME_ERROR;
2878                         break;
2879
2880                 default:
2881                         completionCode = MPT_SCANDV_SOME_ERROR;
2882                         break;
2883
2884                 }       /* switch(status) */
2885
2886         } /* end of address reply case */
2887
2888         hd->pLocal->completion = completionCode;
2889
2890         /* MF and RF are freed in mpt_interrupt
2891          */
2892 wakeup:
2893         /* Free Chain buffers (will never chain) in scan or dv */
2894         //mptscsih_freeChainBuffers(ioc, req_idx);
2895
2896         /*
2897          * Wake up the original calling thread
2898          */
2899         hd->scandv_wait_done = 1;
2900         wake_up(&hd->scandv_waitq);
2901
2902         return 1;
2903 }
2904
2905 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2906 /*      mptscsih_timer_expired - Call back for timer process.
2907  *      Used only for dv functionality.
2908  *      @data: Pointer to MPT_SCSI_HOST recast as an unsigned long
2909  *
2910  */
2911 void
2912 mptscsih_timer_expired(unsigned long data)
2913 {
2914         MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *) data;
2915
2916         ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "Timer Expired! Cmd %p\n", hd->ioc->name, hd->cmdPtr));
2917
2918         if (hd->cmdPtr) {
2919                 MPIHeader_t *cmd = (MPIHeader_t *)hd->cmdPtr;
2920
2921                 if (cmd->Function == MPI_FUNCTION_SCSI_IO_REQUEST) {
2922                         /* Desire to issue a task management request here.
2923                          * TM requests MUST be single threaded.
2924                          * If old eh code and no TM current, issue request.
2925                          * If new eh code, do nothing. Wait for OS cmd timeout
2926                          *      for bus reset.
2927                          */
2928                 } else {
2929                         /* Perform a FW reload */
2930                         if (mpt_HardResetHandler(hd->ioc, NO_SLEEP) < 0) {
2931                                 printk(MYIOC_s_WARN_FMT "Firmware Reload FAILED!\n", hd->ioc->name);
2932                         }
2933                 }
2934         } else {
2935                 /* This should NEVER happen */
2936                 printk(MYIOC_s_WARN_FMT "Null cmdPtr!!!!\n", hd->ioc->name);
2937         }
2938
2939         /* No more processing.
2940          * TM call will generate an interrupt for SCSI TM Management.
2941          * The FW will reply to all outstanding commands, callback will finish cleanup.
2942          * Hard reset clean-up will free all resources.
2943          */
2944         ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "Timer Expired Complete!\n", hd->ioc->name));
2945
2946         return;
2947 }
2948
2949
2950 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
2951 /**
2952  *      mptscsih_do_cmd - Do internal command.
2953  *      @hd: MPT_SCSI_HOST pointer
2954  *      @io: INTERNAL_CMD pointer.
2955  *
2956  *      Issue the specified internally generated command and do command
2957  *      specific cleanup. For bus scan / DV only.
2958  *      NOTES: If command is Inquiry and status is good,
2959  *      initialize a target structure, save the data
2960  *
2961  *      Remark: Single threaded access only.
2962  *
2963  *      Return:
2964  *              < 0 if an illegal command or no resources
2965  *
2966  *                 0 if good
2967  *
2968  *               > 0 if command complete but some type of completion error.
2969  */
2970 static int
2971 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io)
2972 {
2973         MPT_FRAME_HDR   *mf;
2974         SCSIIORequest_t *pScsiReq;
2975         SCSIIORequest_t  ReqCopy;
2976         int              my_idx, ii, dir;
2977         int              rc, cmdTimeout;
2978         int             in_isr;
2979         char             cmdLen;
2980         char             CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
2981         char             cmd = io->cmd;
2982
2983         in_isr = in_interrupt();
2984         if (in_isr) {
2985                 dprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "Internal SCSI IO request not allowed in ISR context!\n",
2986                                 hd->ioc->name));
2987                 return -EPERM;
2988         }
2989
2990
2991         /* Set command specific information
2992          */
2993         switch (cmd) {
2994         case INQUIRY:
2995                 cmdLen = 6;
2996                 dir = MPI_SCSIIO_CONTROL_READ;
2997                 CDB[0] = cmd;
2998                 CDB[4] = io->size;
2999                 cmdTimeout = 10;
3000                 break;
3001
3002         case TEST_UNIT_READY:
3003                 cmdLen = 6;
3004                 dir = MPI_SCSIIO_CONTROL_READ;
3005                 cmdTimeout = 10;
3006                 break;
3007
3008         case START_STOP:
3009                 cmdLen = 6;
3010                 dir = MPI_SCSIIO_CONTROL_READ;
3011                 CDB[0] = cmd;
3012                 CDB[4] = 1;     /*Spin up the disk */
3013                 cmdTimeout = 15;
3014                 break;
3015
3016         case REQUEST_SENSE:
3017                 cmdLen = 6;
3018                 CDB[0] = cmd;
3019                 CDB[4] = io->size;
3020                 dir = MPI_SCSIIO_CONTROL_READ;
3021                 cmdTimeout = 10;
3022                 break;
3023
3024         case READ_BUFFER:
3025                 cmdLen = 10;
3026                 dir = MPI_SCSIIO_CONTROL_READ;
3027                 CDB[0] = cmd;
3028                 if (io->flags & MPT_ICFLAG_ECHO) {
3029                         CDB[1] = 0x0A;
3030                 } else {
3031                         CDB[1] = 0x02;
3032                 }
3033
3034                 if (io->flags & MPT_ICFLAG_BUF_CAP) {
3035                         CDB[1] |= 0x01;
3036                 }
3037                 CDB[6] = (io->size >> 16) & 0xFF;
3038                 CDB[7] = (io->size >>  8) & 0xFF;
3039                 CDB[8] = io->size & 0xFF;
3040                 cmdTimeout = 10;
3041                 break;
3042
3043         case WRITE_BUFFER:
3044                 cmdLen = 10;
3045                 dir = MPI_SCSIIO_CONTROL_WRITE;
3046                 CDB[0] = cmd;
3047                 if (io->flags & MPT_ICFLAG_ECHO) {
3048                         CDB[1] = 0x0A;
3049                 } else {
3050                         CDB[1] = 0x02;
3051                 }
3052                 CDB[6] = (io->size >> 16) & 0xFF;
3053                 CDB[7] = (io->size >>  8) & 0xFF;
3054                 CDB[8] = io->size & 0xFF;
3055                 cmdTimeout = 10;
3056                 break;
3057
3058         case RESERVE:
3059                 cmdLen = 6;
3060                 dir = MPI_SCSIIO_CONTROL_READ;
3061                 CDB[0] = cmd;
3062                 cmdTimeout = 10;
3063                 break;
3064
3065         case RELEASE:
3066                 cmdLen = 6;
3067                 dir = MPI_SCSIIO_CONTROL_READ;
3068                 CDB[0] = cmd;
3069                 cmdTimeout = 10;
3070                 break;
3071
3072         case SYNCHRONIZE_CACHE:
3073                 cmdLen = 10;
3074                 dir = MPI_SCSIIO_CONTROL_READ;
3075                 CDB[0] = cmd;
3076 //              CDB[1] = 0x02;  /* set immediate bit */
3077                 cmdTimeout = 10;
3078                 break;
3079
3080         default:
3081                 /* Error Case */
3082                 return -EFAULT;
3083         }
3084
3085         /* Get and Populate a free Frame
3086          */
3087         if ((mf = mpt_get_msg_frame(hd->ioc->InternalCtx, hd->ioc)) == NULL) {
3088                 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "No msg frames!\n",
3089                                         hd->ioc->name));
3090                 return -EBUSY;
3091         }
3092
3093         pScsiReq = (SCSIIORequest_t *) mf;
3094
3095         /* Get the request index */
3096         my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
3097         ADD_INDEX_LOG(my_idx); /* for debug */
3098
3099         if (io->flags & MPT_ICFLAG_PHYS_DISK) {
3100                 pScsiReq->TargetID = io->physDiskNum;
3101                 pScsiReq->Bus = 0;
3102                 pScsiReq->ChainOffset = 0;
3103                 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3104         } else {
3105                 pScsiReq->TargetID = io->id;
3106                 pScsiReq->Bus = io->channel;
3107                 pScsiReq->ChainOffset = 0;
3108                 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
3109         }
3110
3111         pScsiReq->CDBLength = cmdLen;
3112         pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
3113
3114         pScsiReq->Reserved = 0;
3115
3116         pScsiReq->MsgFlags = mpt_msg_flags();
3117         /* MsgContext set in mpt_get_msg_fram call  */
3118
3119         int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN);
3120
3121         if (io->flags & MPT_ICFLAG_TAGGED_CMD)
3122                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ);
3123         else
3124                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3125
3126         if (cmd == REQUEST_SENSE) {
3127                 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED);
3128                 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "Untagged! 0x%2x\n",
3129                         hd->ioc->name, cmd));
3130         }
3131
3132         for (ii=0; ii < 16; ii++)
3133                 pScsiReq->CDB[ii] = CDB[ii];
3134
3135         pScsiReq->DataLength = cpu_to_le32(io->size);
3136         pScsiReq->SenseBufferLowAddr = cpu_to_le32(hd->ioc->sense_buf_low_dma
3137                                            + (my_idx * MPT_SENSE_BUFFER_ALLOC));
3138
3139         ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "Sending Command 0x%x for (%d:%d:%d)\n",
3140                         hd->ioc->name, cmd, io->channel, io->id, io->lun));
3141
3142         if (dir == MPI_SCSIIO_CONTROL_READ) {
3143                 mpt_add_sge((char *) &pScsiReq->SGL,
3144                         MPT_SGE_FLAGS_SSIMPLE_READ | io->size,
3145                         io->data_dma);
3146         } else {
3147                 mpt_add_sge((char *) &pScsiReq->SGL,
3148                         MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size,
3149                         io->data_dma);
3150         }
3151
3152         /* The ISR will free the request frame, but we need
3153          * the information to initialize the target. Duplicate.
3154          */
3155         memcpy(&ReqCopy, pScsiReq, sizeof(SCSIIORequest_t));
3156
3157         /* Issue this command after:
3158          *      finish init
3159          *      add timer
3160          * Wait until the reply has been received
3161          *  ScsiScanDvCtx callback function will
3162          *      set hd->pLocal;
3163          *      set scandv_wait_done and call wake_up
3164          */
3165         hd->pLocal = NULL;
3166         hd->timer.expires = jiffies + HZ*cmdTimeout;
3167         hd->scandv_wait_done = 0;
3168
3169         /* Save cmd pointer, for resource free if timeout or
3170          * FW reload occurs
3171          */
3172         hd->cmdPtr = mf;
3173
3174         add_timer(&hd->timer);
3175         mpt_put_msg_frame(hd->ioc->InternalCtx, hd->ioc, mf);
3176         wait_event(hd->scandv_waitq, hd->scandv_wait_done);
3177
3178         if (hd->pLocal) {
3179                 rc = hd->pLocal->completion;
3180                 hd->pLocal->skip = 0;
3181
3182                 /* Always set fatal error codes in some cases.
3183                  */
3184                 if (rc == MPT_SCANDV_SELECTION_TIMEOUT)
3185                         rc = -ENXIO;
3186                 else if (rc == MPT_SCANDV_SOME_ERROR)
3187                         rc =  -rc;
3188         } else {
3189                 rc = -EFAULT;
3190                 /* This should never happen. */
3191                 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "_do_cmd: Null pLocal!!!\n",
3192                                 hd->ioc->name));
3193         }
3194
3195         return rc;
3196 }
3197
3198 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
3199 /**
3200  *      mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks.
3201  *      @hd: Pointer to a SCSI HOST structure
3202  *      @vdevice: virtual target device
3203  *
3204  *      Uses the ISR, but with special processing.
3205  *      MUST be single-threaded.
3206  *
3207  */
3208 static void
3209 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
3210 {
3211         INTERNAL_CMD             iocmd;
3212
3213         /* Ignore hidden raid components, this is handled when the command
3214          * is sent to the volume
3215          */
3216         if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
3217                 return;
3218
3219         if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted ||
3220             !vdevice->configured_lun)
3221                 return;
3222
3223         /* Following parameters will not change
3224          * in this routine.
3225          */
3226         iocmd.cmd = SYNCHRONIZE_CACHE;
3227         iocmd.flags = 0;
3228         iocmd.physDiskNum = -1;
3229         iocmd.data = NULL;
3230         iocmd.data_dma = -1;
3231         iocmd.size = 0;
3232         iocmd.rsvd = iocmd.rsvd2 = 0;
3233         iocmd.channel = vdevice->vtarget->channel;
3234         iocmd.id = vdevice->vtarget->id;
3235         iocmd.lun = vdevice->lun;
3236
3237         mptscsih_do_cmd(hd, &iocmd);
3238 }
3239
3240 static ssize_t
3241 mptscsih_version_fw_show(struct class_device *cdev, char *buf)
3242 {
3243         struct Scsi_Host *host = class_to_shost(cdev);
3244         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
3245         MPT_ADAPTER *ioc = hd->ioc;
3246
3247         return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
3248             (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
3249             (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
3250             (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
3251             ioc->facts.FWVersion.Word & 0x000000FF);
3252 }
3253 static CLASS_DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
3254
3255 static ssize_t
3256 mptscsih_version_bios_show(struct class_device *cdev, char *buf)
3257 {
3258         struct Scsi_Host *host = class_to_shost(cdev);
3259         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
3260         MPT_ADAPTER *ioc = hd->ioc;
3261
3262         return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
3263             (ioc->biosVersion & 0xFF000000) >> 24,
3264             (ioc->biosVersion & 0x00FF0000) >> 16,
3265             (ioc->biosVersion & 0x0000FF00) >> 8,
3266             ioc->biosVersion & 0x000000FF);
3267 }
3268 static CLASS_DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
3269
3270 static ssize_t
3271 mptscsih_version_mpi_show(struct class_device *cdev, char *buf)
3272 {
3273         struct Scsi_Host *host = class_to_shost(cdev);
3274         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
3275         MPT_ADAPTER *ioc = hd->ioc;
3276
3277         return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
3278 }
3279 static CLASS_DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
3280
3281 static ssize_t
3282 mptscsih_version_product_show(struct class_device *cdev, char *buf)
3283 {
3284         struct Scsi_Host *host = class_to_shost(cdev);
3285         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
3286         MPT_ADAPTER *ioc = hd->ioc;
3287
3288         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
3289 }
3290 static CLASS_DEVICE_ATTR(version_product, S_IRUGO,
3291     mptscsih_version_product_show, NULL);
3292
3293 static ssize_t
3294 mptscsih_version_nvdata_persistent_show(struct class_device *cdev, char *buf)
3295 {
3296         struct Scsi_Host *host = class_to_shost(cdev);
3297         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
3298         MPT_ADAPTER *ioc = hd->ioc;
3299
3300         return snprintf(buf, PAGE_SIZE, "%02xh\n",
3301             ioc->nvdata_version_persistent);
3302 }
3303 static CLASS_DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
3304     mptscsih_version_nvdata_persistent_show, NULL);
3305
3306 static ssize_t
3307 mptscsih_version_nvdata_default_show(struct class_device *cdev, char *buf)
3308 {
3309         struct Scsi_Host *host = class_to_shost(cdev);
3310         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
3311         MPT_ADAPTER *ioc = hd->ioc;
3312
3313         return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
3314 }
3315 static CLASS_DEVICE_ATTR(version_nvdata_default, S_IRUGO,
3316     mptscsih_version_nvdata_default_show, NULL);
3317
3318 static ssize_t
3319 mptscsih_board_name_show(struct class_device *cdev, char *buf)
3320 {
3321         struct Scsi_Host *host = class_to_shost(cdev);
3322         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
3323         MPT_ADAPTER *ioc = hd->ioc;
3324
3325         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
3326 }
3327 static CLASS_DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
3328
3329 static ssize_t
3330 mptscsih_board_assembly_show(struct class_device *cdev, char *buf)
3331 {
3332         struct Scsi_Host *host = class_to_shost(cdev);
3333         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
3334         MPT_ADAPTER *ioc = hd->ioc;
3335
3336         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
3337 }
3338 static CLASS_DEVICE_ATTR(board_assembly, S_IRUGO,
3339     mptscsih_board_assembly_show, NULL);
3340
3341 static ssize_t
3342 mptscsih_board_tracer_show(struct class_device *cdev, char *buf)
3343 {
3344         struct Scsi_Host *host = class_to_shost(cdev);
3345         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
3346         MPT_ADAPTER *ioc = hd->ioc;
3347
3348         return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
3349 }
3350 static CLASS_DEVICE_ATTR(board_tracer, S_IRUGO,
3351     mptscsih_board_tracer_show, NULL);
3352
3353 static ssize_t
3354 mptscsih_io_delay_show(struct class_device *cdev, char *buf)
3355 {
3356         struct Scsi_Host *host = class_to_shost(cdev);
3357         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
3358         MPT_ADAPTER *ioc = hd->ioc;
3359
3360         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3361 }
3362 static CLASS_DEVICE_ATTR(io_delay, S_IRUGO,
3363     mptscsih_io_delay_show, NULL);
3364
3365 static ssize_t
3366 mptscsih_device_delay_show(struct class_device *cdev, char *buf)
3367 {
3368         struct Scsi_Host *host = class_to_shost(cdev);
3369         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
3370         MPT_ADAPTER *ioc = hd->ioc;
3371
3372         return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3373 }
3374 static CLASS_DEVICE_ATTR(device_delay, S_IRUGO,
3375     mptscsih_device_delay_show, NULL);
3376
3377 static ssize_t
3378 mptscsih_debug_level_show(struct class_device *cdev, char *buf)
3379 {
3380         struct Scsi_Host *host = class_to_shost(cdev);
3381         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
3382         MPT_ADAPTER *ioc = hd->ioc;
3383
3384         return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
3385 }
3386 static ssize_t
3387 mptscsih_debug_level_store(struct class_device *cdev, const char *buf,
3388                                                                 size_t count)
3389 {
3390         struct Scsi_Host *host = class_to_shost(cdev);
3391         MPT_SCSI_HOST   *hd = (MPT_SCSI_HOST *)host->hostdata;
3392         MPT_ADAPTER *ioc = hd->ioc;
3393         int val = 0;
3394
3395         if (sscanf(buf, "%x", &val) != 1)
3396                 return -EINVAL;
3397
3398         ioc->debug_level = val;
3399         printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n",
3400                                 ioc->name, ioc->debug_level);
3401         return strlen(buf);
3402 }
3403 static CLASS_DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR,
3404     mptscsih_debug_level_show, mptscsih_debug_level_store);
3405
3406 struct class_device_attribute *mptscsih_host_attrs[] = {
3407         &class_device_attr_version_fw,
3408         &class_device_attr_version_bios,
3409         &class_device_attr_version_mpi,
3410         &class_device_attr_version_product,
3411         &class_device_attr_version_nvdata_persistent,
3412         &class_device_attr_version_nvdata_default,
3413         &class_device_attr_board_name,
3414         &class_device_attr_board_assembly,
3415         &class_device_attr_board_tracer,
3416         &class_device_attr_io_delay,
3417         &class_device_attr_device_delay,
3418         &class_device_attr_debug_level,
3419         NULL,
3420 };
3421 EXPORT_SYMBOL(mptscsih_host_attrs);
3422
3423 EXPORT_SYMBOL(mptscsih_remove);
3424 EXPORT_SYMBOL(mptscsih_shutdown);
3425 #ifdef CONFIG_PM
3426 EXPORT_SYMBOL(mptscsih_suspend);
3427 EXPORT_SYMBOL(mptscsih_resume);
3428 #endif
3429 EXPORT_SYMBOL(mptscsih_proc_info);
3430 EXPORT_SYMBOL(mptscsih_info);
3431 EXPORT_SYMBOL(mptscsih_qcmd);
3432 EXPORT_SYMBOL(mptscsih_slave_destroy);
3433 EXPORT_SYMBOL(mptscsih_slave_configure);
3434 EXPORT_SYMBOL(mptscsih_abort);
3435 EXPORT_SYMBOL(mptscsih_dev_reset);
3436 EXPORT_SYMBOL(mptscsih_bus_reset);
3437 EXPORT_SYMBOL(mptscsih_host_reset);
3438 EXPORT_SYMBOL(mptscsih_bios_param);
3439 EXPORT_SYMBOL(mptscsih_io_done);
3440 EXPORT_SYMBOL(mptscsih_taskmgmt_complete);
3441 EXPORT_SYMBOL(mptscsih_scandv_complete);
3442 EXPORT_SYMBOL(mptscsih_event_process);
3443 EXPORT_SYMBOL(mptscsih_ioc_reset);
3444 EXPORT_SYMBOL(mptscsih_change_queue_depth);
3445 EXPORT_SYMBOL(mptscsih_timer_expired);
3446 EXPORT_SYMBOL(mptscsih_TMHandler);
3447
3448 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/