1 /* 2 * linux/drivers/message/fusion/mptscsih.c 3 * For use with LSI PCI chip/adapter(s) 4 * running LSI Fusion MPT (Message Passing Technology) firmware. 5 * 6 * Copyright (c) 1999-2008 LSI Corporation 7 * (mailto:DL-MPTFusionLinux@lsi.com) 8 * 9 */ 10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 11 /* 12 This program is free software; you can redistribute it and/or modify 13 it under the terms of the GNU General Public License as published by 14 the Free Software Foundation; version 2 of the License. 15 16 This program is distributed in the hope that it will be useful, 17 but WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 GNU General Public License for more details. 20 21 NO WARRANTY 22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR 23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT 24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, 25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is 26 solely responsible for determining the appropriateness of using and 27 distributing the Program and assumes all risks associated with its 28 exercise of rights under this Agreement, including but not limited to 29 the risks and costs of program errors, damage to or loss of data, 30 programs or equipment, and unavailability or interruption of operations. 31 32 DISCLAIMER OF LIABILITY 33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY 34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND 36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED 39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES 40 41 You should have received a copy of the GNU General Public License 42 along with this program; if not, write to the Free Software 43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 44 */ 45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 46 47 #include <linux/module.h> 48 #include <linux/kernel.h> 49 #include <linux/slab.h> 50 #include <linux/init.h> 51 #include <linux/errno.h> 52 #include <linux/kdev_t.h> 53 #include <linux/blkdev.h> 54 #include <linux/delay.h> /* for mdelay */ 55 #include <linux/interrupt.h> 56 #include <linux/reboot.h> /* notifier code */ 57 #include <linux/workqueue.h> 58 59 #include <scsi/scsi.h> 60 #include <scsi/scsi_cmnd.h> 61 #include <scsi/scsi_device.h> 62 #include <scsi/scsi_host.h> 63 #include <scsi/scsi_tcq.h> 64 #include <scsi/scsi_dbg.h> 65 66 #include "mptbase.h" 67 #include "mptscsih.h" 68 #include "lsi/mpi_log_sas.h" 69 70 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 71 #define my_NAME "Fusion MPT SCSI Host driver" 72 #define my_VERSION MPT_LINUX_VERSION_COMMON 73 #define MYNAM "mptscsih" 74 75 MODULE_AUTHOR(MODULEAUTHOR); 76 MODULE_DESCRIPTION(my_NAME); 77 MODULE_LICENSE("GPL"); 78 MODULE_VERSION(my_VERSION); 79 80 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 81 /* 82 * Other private/forward protos... 83 */ 84 struct scsi_cmnd *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i); 85 static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i); 86 static void mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd); 87 static int SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd); 88 int mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r); 89 static void mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq); 90 int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r); 91 92 static int mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt, 93 SCSIIORequest_t *pReq, int req_idx); 94 static void mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx); 95 static void mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply); 96 97 int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, 98 u64 lun, int ctx2abort, ulong timeout); 99 100 int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset); 101 int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply); 102 103 void 104 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code); 105 static int mptscsih_get_completion_code(MPT_ADAPTER *ioc, 106 MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply); 107 int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r); 108 static int mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd); 109 static void mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice); 110 111 static int 112 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type, 113 SCSITaskMgmtReply_t *pScsiTmReply); 114 void mptscsih_remove(struct pci_dev *); 115 void mptscsih_shutdown(struct pci_dev *); 116 #ifdef CONFIG_PM 117 int mptscsih_suspend(struct pci_dev *pdev, pm_message_t state); 118 int mptscsih_resume(struct pci_dev *pdev); 119 #endif 120 121 122 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 123 /* 124 * mptscsih_getFreeChainBuffer - Function to get a free chain 125 * from the MPT_SCSI_HOST FreeChainQ. 126 * @ioc: Pointer to MPT_ADAPTER structure 127 * @req_idx: Index of the SCSI IO request frame. (output) 128 * 129 * return SUCCESS or FAILED 130 */ 131 static inline int 132 mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex) 133 { 134 MPT_FRAME_HDR *chainBuf; 135 unsigned long flags; 136 int rc; 137 int chain_idx; 138 139 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n", 140 ioc->name)); 141 spin_lock_irqsave(&ioc->FreeQlock, flags); 142 if (!list_empty(&ioc->FreeChainQ)) { 143 int offset; 144 145 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR, 146 u.frame.linkage.list); 147 list_del(&chainBuf->u.frame.linkage.list); 148 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer; 149 chain_idx = offset / ioc->req_sz; 150 rc = SUCCESS; 151 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT 152 "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n", 153 ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx)); 154 } else { 155 rc = FAILED; 156 chain_idx = MPT_HOST_NO_CHAIN; 157 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n", 158 ioc->name)); 159 } 160 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 161 162 *retIndex = chain_idx; 163 return rc; 164 } /* mptscsih_getFreeChainBuffer() */ 165 166 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 167 /* 168 * mptscsih_AddSGE - Add a SGE (plus chain buffers) to the 169 * SCSIIORequest_t Message Frame. 170 * @ioc: Pointer to MPT_ADAPTER structure 171 * @SCpnt: Pointer to scsi_cmnd structure 172 * @pReq: Pointer to SCSIIORequest_t structure 173 * 174 * Returns ... 175 */ 176 static int 177 mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt, 178 SCSIIORequest_t *pReq, int req_idx) 179 { 180 char *psge; 181 char *chainSge; 182 struct scatterlist *sg; 183 int frm_sz; 184 int sges_left, sg_done; 185 int chain_idx = MPT_HOST_NO_CHAIN; 186 int sgeOffset; 187 int numSgeSlots, numSgeThisFrame; 188 u32 sgflags, sgdir, thisxfer = 0; 189 int chain_dma_off = 0; 190 int newIndex; 191 int ii; 192 dma_addr_t v2; 193 u32 RequestNB; 194 195 sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK; 196 if (sgdir == MPI_SCSIIO_CONTROL_WRITE) { 197 sgdir = MPT_TRANSFER_HOST_TO_IOC; 198 } else { 199 sgdir = MPT_TRANSFER_IOC_TO_HOST; 200 } 201 202 psge = (char *) &pReq->SGL; 203 frm_sz = ioc->req_sz; 204 205 /* Map the data portion, if any. 206 * sges_left = 0 if no data transfer. 207 */ 208 sges_left = scsi_dma_map(SCpnt); 209 if (sges_left < 0) 210 return FAILED; 211 212 /* Handle the SG case. 213 */ 214 sg = scsi_sglist(SCpnt); 215 sg_done = 0; 216 sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION); 217 chainSge = NULL; 218 219 /* Prior to entering this loop - the following must be set 220 * current MF: sgeOffset (bytes) 221 * chainSge (Null if original MF is not a chain buffer) 222 * sg_done (num SGE done for this MF) 223 */ 224 225 nextSGEset: 226 numSgeSlots = ((frm_sz - sgeOffset) / ioc->SGE_size); 227 numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots; 228 229 sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | sgdir; 230 231 /* Get first (num - 1) SG elements 232 * Skip any SG entries with a length of 0 233 * NOTE: at finish, sg and psge pointed to NEXT data/location positions 234 */ 235 for (ii=0; ii < (numSgeThisFrame-1); ii++) { 236 thisxfer = sg_dma_len(sg); 237 if (thisxfer == 0) { 238 /* Get next SG element from the OS */ 239 sg = sg_next(sg); 240 sg_done++; 241 continue; 242 } 243 244 v2 = sg_dma_address(sg); 245 ioc->add_sge(psge, sgflags | thisxfer, v2); 246 247 /* Get next SG element from the OS */ 248 sg = sg_next(sg); 249 psge += ioc->SGE_size; 250 sgeOffset += ioc->SGE_size; 251 sg_done++; 252 } 253 254 if (numSgeThisFrame == sges_left) { 255 /* Add last element, end of buffer and end of list flags. 256 */ 257 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT | 258 MPT_SGE_FLAGS_END_OF_BUFFER | 259 MPT_SGE_FLAGS_END_OF_LIST; 260 261 /* Add last SGE and set termination flags. 262 * Note: Last SGE may have a length of 0 - which should be ok. 263 */ 264 thisxfer = sg_dma_len(sg); 265 266 v2 = sg_dma_address(sg); 267 ioc->add_sge(psge, sgflags | thisxfer, v2); 268 sgeOffset += ioc->SGE_size; 269 sg_done++; 270 271 if (chainSge) { 272 /* The current buffer is a chain buffer, 273 * but there is not another one. 274 * Update the chain element 275 * Offset and Length fields. 276 */ 277 ioc->add_chain((char *)chainSge, 0, sgeOffset, 278 ioc->ChainBufferDMA + chain_dma_off); 279 } else { 280 /* The current buffer is the original MF 281 * and there is no Chain buffer. 282 */ 283 pReq->ChainOffset = 0; 284 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03; 285 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT 286 "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset)); 287 ioc->RequestNB[req_idx] = RequestNB; 288 } 289 } else { 290 /* At least one chain buffer is needed. 291 * Complete the first MF 292 * - last SGE element, set the LastElement bit 293 * - set ChainOffset (words) for orig MF 294 * (OR finish previous MF chain buffer) 295 * - update MFStructPtr ChainIndex 296 * - Populate chain element 297 * Also 298 * Loop until done. 299 */ 300 301 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n", 302 ioc->name, sg_done)); 303 304 /* Set LAST_ELEMENT flag for last non-chain element 305 * in the buffer. Since psge points at the NEXT 306 * SGE element, go back one SGE element, update the flags 307 * and reset the pointer. (Note: sgflags & thisxfer are already 308 * set properly). 309 */ 310 if (sg_done) { 311 u32 *ptmp = (u32 *) (psge - ioc->SGE_size); 312 sgflags = le32_to_cpu(*ptmp); 313 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT; 314 *ptmp = cpu_to_le32(sgflags); 315 } 316 317 if (chainSge) { 318 /* The current buffer is a chain buffer. 319 * chainSge points to the previous Chain Element. 320 * Update its chain element Offset and Length (must 321 * include chain element size) fields. 322 * Old chain element is now complete. 323 */ 324 u8 nextChain = (u8) (sgeOffset >> 2); 325 sgeOffset += ioc->SGE_size; 326 ioc->add_chain((char *)chainSge, nextChain, sgeOffset, 327 ioc->ChainBufferDMA + chain_dma_off); 328 } else { 329 /* The original MF buffer requires a chain buffer - 330 * set the offset. 331 * Last element in this MF is a chain element. 332 */ 333 pReq->ChainOffset = (u8) (sgeOffset >> 2); 334 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03; 335 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset)); 336 ioc->RequestNB[req_idx] = RequestNB; 337 } 338 339 sges_left -= sg_done; 340 341 342 /* NOTE: psge points to the beginning of the chain element 343 * in current buffer. Get a chain buffer. 344 */ 345 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) { 346 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT 347 "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n", 348 ioc->name, pReq->CDB[0], SCpnt)); 349 return FAILED; 350 } 351 352 /* Update the tracking arrays. 353 * If chainSge == NULL, update ReqToChain, else ChainToChain 354 */ 355 if (chainSge) { 356 ioc->ChainToChain[chain_idx] = newIndex; 357 } else { 358 ioc->ReqToChain[req_idx] = newIndex; 359 } 360 chain_idx = newIndex; 361 chain_dma_off = ioc->req_sz * chain_idx; 362 363 /* Populate the chainSGE for the current buffer. 364 * - Set chain buffer pointer to psge and fill 365 * out the Address and Flags fields. 366 */ 367 chainSge = (char *) psge; 368 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Current buff @ %p (index 0x%x)", 369 ioc->name, psge, req_idx)); 370 371 /* Start the SGE for the next buffer 372 */ 373 psge = (char *) (ioc->ChainBuffer + chain_dma_off); 374 sgeOffset = 0; 375 sg_done = 0; 376 377 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Chain buff @ %p (index 0x%x)\n", 378 ioc->name, psge, chain_idx)); 379 380 /* Start the SGE for the next buffer 381 */ 382 383 goto nextSGEset; 384 } 385 386 return SUCCESS; 387 } /* mptscsih_AddSGE() */ 388 389 static void 390 mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget, 391 U32 SlotStatus) 392 { 393 MPT_FRAME_HDR *mf; 394 SEPRequest_t *SEPMsg; 395 396 if (ioc->bus_type != SAS) 397 return; 398 399 /* Not supported for hidden raid components 400 */ 401 if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) 402 return; 403 404 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) { 405 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n", 406 ioc->name,__func__)); 407 return; 408 } 409 410 SEPMsg = (SEPRequest_t *)mf; 411 SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR; 412 SEPMsg->Bus = vtarget->channel; 413 SEPMsg->TargetID = vtarget->id; 414 SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS; 415 SEPMsg->SlotStatus = SlotStatus; 416 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT 417 "Sending SEP cmd=%x channel=%d id=%d\n", 418 ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID)); 419 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf); 420 } 421 422 #ifdef CONFIG_FUSION_LOGGING 423 /** 424 * mptscsih_info_scsiio - debug print info on reply frame 425 * @ioc: Pointer to MPT_ADAPTER structure 426 * @sc: original scsi cmnd pointer 427 * @pScsiReply: Pointer to MPT reply frame 428 * 429 * MPT_DEBUG_REPLY needs to be enabled to obtain this info 430 * 431 * Refer to lsi/mpi.h. 432 **/ 433 static void 434 mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply) 435 { 436 char *desc = NULL; 437 char *desc1 = NULL; 438 u16 ioc_status; 439 u8 skey, asc, ascq; 440 441 ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK; 442 443 switch (ioc_status) { 444 445 case MPI_IOCSTATUS_SUCCESS: 446 desc = "success"; 447 break; 448 case MPI_IOCSTATUS_SCSI_INVALID_BUS: 449 desc = "invalid bus"; 450 break; 451 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID: 452 desc = "invalid target_id"; 453 break; 454 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: 455 desc = "device not there"; 456 break; 457 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: 458 desc = "data overrun"; 459 break; 460 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: 461 desc = "data underrun"; 462 break; 463 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: 464 desc = "I/O data error"; 465 break; 466 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: 467 desc = "protocol error"; 468 break; 469 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: 470 desc = "task terminated"; 471 break; 472 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: 473 desc = "residual mismatch"; 474 break; 475 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED: 476 desc = "task management failed"; 477 break; 478 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: 479 desc = "IOC terminated"; 480 break; 481 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: 482 desc = "ext terminated"; 483 break; 484 default: 485 desc = ""; 486 break; 487 } 488 489 switch (pScsiReply->SCSIStatus) 490 { 491 492 case MPI_SCSI_STATUS_SUCCESS: 493 desc1 = "success"; 494 break; 495 case MPI_SCSI_STATUS_CHECK_CONDITION: 496 desc1 = "check condition"; 497 break; 498 case MPI_SCSI_STATUS_CONDITION_MET: 499 desc1 = "condition met"; 500 break; 501 case MPI_SCSI_STATUS_BUSY: 502 desc1 = "busy"; 503 break; 504 case MPI_SCSI_STATUS_INTERMEDIATE: 505 desc1 = "intermediate"; 506 break; 507 case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET: 508 desc1 = "intermediate condmet"; 509 break; 510 case MPI_SCSI_STATUS_RESERVATION_CONFLICT: 511 desc1 = "reservation conflict"; 512 break; 513 case MPI_SCSI_STATUS_COMMAND_TERMINATED: 514 desc1 = "command terminated"; 515 break; 516 case MPI_SCSI_STATUS_TASK_SET_FULL: 517 desc1 = "task set full"; 518 break; 519 case MPI_SCSI_STATUS_ACA_ACTIVE: 520 desc1 = "aca active"; 521 break; 522 case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT: 523 desc1 = "fcpext device logged out"; 524 break; 525 case MPI_SCSI_STATUS_FCPEXT_NO_LINK: 526 desc1 = "fcpext no link"; 527 break; 528 case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED: 529 desc1 = "fcpext unassigned"; 530 break; 531 default: 532 desc1 = ""; 533 break; 534 } 535 536 scsi_print_command(sc); 537 printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %llu\n", 538 ioc->name, pScsiReply->Bus, pScsiReply->TargetID, sc->device->lun); 539 printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, " 540 "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow, 541 scsi_get_resid(sc)); 542 printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, " 543 "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag), 544 le32_to_cpu(pScsiReply->TransferCount), sc->result); 545 546 printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), " 547 "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n", 548 ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus, 549 pScsiReply->SCSIState); 550 551 if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) { 552 skey = sc->sense_buffer[2] & 0x0F; 553 asc = sc->sense_buffer[12]; 554 ascq = sc->sense_buffer[13]; 555 556 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: " 557 "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq); 558 } 559 560 /* 561 * Look for + dump FCP ResponseInfo[]! 562 */ 563 if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID && 564 pScsiReply->ResponseInfo) 565 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n", 566 ioc->name, le32_to_cpu(pScsiReply->ResponseInfo)); 567 } 568 #endif 569 570 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 571 /* 572 * mptscsih_io_done - Main SCSI IO callback routine registered to 573 * Fusion MPT (base) driver 574 * @ioc: Pointer to MPT_ADAPTER structure 575 * @mf: Pointer to original MPT request frame 576 * @r: Pointer to MPT reply frame (NULL if TurboReply) 577 * 578 * This routine is called from mpt.c::mpt_interrupt() at the completion 579 * of any SCSI IO request. 580 * This routine is registered with the Fusion MPT (base) driver at driver 581 * load/init time via the mpt_register() API call. 582 * 583 * Returns 1 indicating alloc'd request frame ptr should be freed. 584 */ 585 int 586 mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr) 587 { 588 struct scsi_cmnd *sc; 589 MPT_SCSI_HOST *hd; 590 SCSIIORequest_t *pScsiReq; 591 SCSIIOReply_t *pScsiReply; 592 u16 req_idx, req_idx_MR; 593 VirtDevice *vdevice; 594 VirtTarget *vtarget; 595 596 hd = shost_priv(ioc->sh); 597 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 598 req_idx_MR = (mr != NULL) ? 599 le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx; 600 601 /* Special case, where already freed message frame is received from 602 * Firmware. It happens with Resetting IOC. 603 * Return immediately. Do not care 604 */ 605 if ((req_idx != req_idx_MR) || 606 (le32_to_cpu(mf->u.frame.linkage.arg1) == 0xdeadbeaf)) 607 return 0; 608 609 sc = mptscsih_getclear_scsi_lookup(ioc, req_idx); 610 if (sc == NULL) { 611 MPIHeader_t *hdr = (MPIHeader_t *)mf; 612 613 /* Remark: writeSDP1 will use the ScsiDoneCtx 614 * If a SCSI I/O cmd, device disabled by OS and 615 * completion done. Cannot touch sc struct. Just free mem. 616 */ 617 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST) 618 printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n", 619 ioc->name); 620 621 mptscsih_freeChainBuffers(ioc, req_idx); 622 return 1; 623 } 624 625 if ((unsigned char *)mf != sc->host_scribble) { 626 mptscsih_freeChainBuffers(ioc, req_idx); 627 return 1; 628 } 629 630 if (ioc->bus_type == SAS) { 631 VirtDevice *vdevice = sc->device->hostdata; 632 633 if (!vdevice || !vdevice->vtarget || 634 vdevice->vtarget->deleted) { 635 sc->result = DID_NO_CONNECT << 16; 636 goto out; 637 } 638 } 639 640 sc->host_scribble = NULL; 641 sc->result = DID_OK << 16; /* Set default reply as OK */ 642 pScsiReq = (SCSIIORequest_t *) mf; 643 pScsiReply = (SCSIIOReply_t *) mr; 644 645 if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){ 646 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT 647 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n", 648 ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag)); 649 }else{ 650 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT 651 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n", 652 ioc->name, mf, mr, sc, req_idx)); 653 } 654 655 if (pScsiReply == NULL) { 656 /* special context reply handling */ 657 ; 658 } else { 659 u32 xfer_cnt; 660 u16 status; 661 u8 scsi_state, scsi_status; 662 u32 log_info; 663 664 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK; 665 666 scsi_state = pScsiReply->SCSIState; 667 scsi_status = pScsiReply->SCSIStatus; 668 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount); 669 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt); 670 log_info = le32_to_cpu(pScsiReply->IOCLogInfo); 671 672 /* 673 * if we get a data underrun indication, yet no data was 674 * transferred and the SCSI status indicates that the 675 * command was never started, change the data underrun 676 * to success 677 */ 678 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 && 679 (scsi_status == MPI_SCSI_STATUS_BUSY || 680 scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT || 681 scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) { 682 status = MPI_IOCSTATUS_SUCCESS; 683 } 684 685 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) 686 mptscsih_copy_sense_data(sc, hd, mf, pScsiReply); 687 688 /* 689 * Look for + dump FCP ResponseInfo[]! 690 */ 691 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID && 692 pScsiReply->ResponseInfo) { 693 printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%llu] " 694 "FCP_ResponseInfo=%08xh\n", ioc->name, 695 sc->device->host->host_no, sc->device->channel, 696 sc->device->id, sc->device->lun, 697 le32_to_cpu(pScsiReply->ResponseInfo)); 698 } 699 700 switch(status) { 701 case MPI_IOCSTATUS_BUSY: /* 0x0002 */ 702 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES: /* 0x0006 */ 703 /* CHECKME! 704 * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry) 705 * But not: DID_BUS_BUSY lest one risk 706 * killing interrupt handler:-( 707 */ 708 sc->result = SAM_STAT_BUSY; 709 break; 710 711 case MPI_IOCSTATUS_SCSI_INVALID_BUS: /* 0x0041 */ 712 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID: /* 0x0042 */ 713 sc->result = DID_BAD_TARGET << 16; 714 break; 715 716 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */ 717 /* Spoof to SCSI Selection Timeout! */ 718 if (ioc->bus_type != FC) 719 sc->result = DID_NO_CONNECT << 16; 720 /* else fibre, just stall until rescan event */ 721 else 722 sc->result = DID_REQUEUE << 16; 723 724 if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF) 725 hd->sel_timeout[pScsiReq->TargetID]++; 726 727 vdevice = sc->device->hostdata; 728 if (!vdevice) 729 break; 730 vtarget = vdevice->vtarget; 731 if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) { 732 mptscsih_issue_sep_command(ioc, vtarget, 733 MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED); 734 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON; 735 } 736 break; 737 738 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */ 739 if ( ioc->bus_type == SAS ) { 740 u16 ioc_status = 741 le16_to_cpu(pScsiReply->IOCStatus); 742 if ((ioc_status & 743 MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) 744 && 745 ((log_info & SAS_LOGINFO_MASK) == 746 SAS_LOGINFO_NEXUS_LOSS)) { 747 VirtDevice *vdevice = 748 sc->device->hostdata; 749 750 /* flag the device as being in 751 * device removal delay so we can 752 * notify the midlayer to hold off 753 * on timeout eh */ 754 if (vdevice && vdevice-> 755 vtarget && 756 vdevice->vtarget-> 757 raidVolume) 758 printk(KERN_INFO 759 "Skipping Raid Volume" 760 "for inDMD\n"); 761 else if (vdevice && 762 vdevice->vtarget) 763 vdevice->vtarget-> 764 inDMD = 1; 765 766 sc->result = 767 (DID_TRANSPORT_DISRUPTED 768 << 16); 769 break; 770 } 771 } else if (ioc->bus_type == FC) { 772 /* 773 * The FC IOC may kill a request for variety of 774 * reasons, some of which may be recovered by a 775 * retry, some which are unlikely to be 776 * recovered. Return DID_ERROR instead of 777 * DID_RESET to permit retry of the command, 778 * just not an infinite number of them 779 */ 780 sc->result = DID_ERROR << 16; 781 break; 782 } 783 784 /* 785 * Allow non-SAS & non-NEXUS_LOSS to drop into below code 786 */ 787 fallthrough; 788 789 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */ 790 /* Linux handles an unsolicited DID_RESET better 791 * than an unsolicited DID_ABORT. 792 */ 793 sc->result = DID_RESET << 16; 794 break; 795 796 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */ 797 if (ioc->bus_type == FC) 798 sc->result = DID_ERROR << 16; 799 else 800 sc->result = DID_RESET << 16; 801 break; 802 803 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: /* 0x0049 */ 804 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt); 805 if((xfer_cnt==0)||(sc->underflow > xfer_cnt)) 806 sc->result=DID_SOFT_ERROR << 16; 807 else /* Sufficient data transfer occurred */ 808 sc->result = (DID_OK << 16) | scsi_status; 809 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT 810 "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n", 811 ioc->name, sc->result, sc->device->channel, sc->device->id)); 812 break; 813 814 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */ 815 /* 816 * Do upfront check for valid SenseData and give it 817 * precedence! 818 */ 819 sc->result = (DID_OK << 16) | scsi_status; 820 if (!(scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)) { 821 822 /* 823 * For an Errata on LSI53C1030 824 * When the length of request data 825 * and transfer data are different 826 * with result of command (READ or VERIFY), 827 * DID_SOFT_ERROR is set. 828 */ 829 if (ioc->bus_type == SPI) { 830 if ((pScsiReq->CDB[0] == READ_6 && ((pScsiReq->CDB[1] & 0x02) == 0)) || 831 pScsiReq->CDB[0] == READ_10 || 832 pScsiReq->CDB[0] == READ_12 || 833 (pScsiReq->CDB[0] == READ_16 && 834 ((pScsiReq->CDB[1] & 0x02) == 0)) || 835 pScsiReq->CDB[0] == VERIFY || 836 pScsiReq->CDB[0] == VERIFY_16) { 837 if (scsi_bufflen(sc) != 838 xfer_cnt) { 839 sc->result = 840 DID_SOFT_ERROR << 16; 841 printk(KERN_WARNING "Errata" 842 "on LSI53C1030 occurred." 843 "sc->req_bufflen=0x%02x," 844 "xfer_cnt=0x%02x\n", 845 scsi_bufflen(sc), 846 xfer_cnt); 847 } 848 } 849 } 850 851 if (xfer_cnt < sc->underflow) { 852 if (scsi_status == SAM_STAT_BUSY) 853 sc->result = SAM_STAT_BUSY; 854 else 855 sc->result = DID_SOFT_ERROR << 16; 856 } 857 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) { 858 /* What to do? 859 */ 860 sc->result = DID_SOFT_ERROR << 16; 861 } 862 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) { 863 /* Not real sure here either... */ 864 sc->result = DID_RESET << 16; 865 } 866 } 867 868 869 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT 870 " sc->underflow={report ERR if < %02xh bytes xfer'd}\n", 871 ioc->name, sc->underflow)); 872 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT 873 " ActBytesXferd=%02xh\n", ioc->name, xfer_cnt)); 874 875 /* Report Queue Full 876 */ 877 if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL) 878 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq); 879 880 break; 881 882 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: /* 0x0044 */ 883 scsi_set_resid(sc, 0); 884 fallthrough; 885 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */ 886 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */ 887 sc->result = (DID_OK << 16) | scsi_status; 888 if (scsi_state == 0) { 889 ; 890 } else if (scsi_state & 891 MPI_SCSI_STATE_AUTOSENSE_VALID) { 892 893 /* 894 * For potential trouble on LSI53C1030. 895 * (date:2007.xx.) 896 * It is checked whether the length of 897 * request data is equal to 898 * the length of transfer and residual. 899 * MEDIUM_ERROR is set by incorrect data. 900 */ 901 if ((ioc->bus_type == SPI) && 902 (sc->sense_buffer[2] & 0x20)) { 903 u32 difftransfer; 904 difftransfer = 905 sc->sense_buffer[3] << 24 | 906 sc->sense_buffer[4] << 16 | 907 sc->sense_buffer[5] << 8 | 908 sc->sense_buffer[6]; 909 if (((sc->sense_buffer[3] & 0x80) == 910 0x80) && (scsi_bufflen(sc) 911 != xfer_cnt)) { 912 sc->sense_buffer[2] = 913 MEDIUM_ERROR; 914 sc->sense_buffer[12] = 0xff; 915 sc->sense_buffer[13] = 0xff; 916 printk(KERN_WARNING"Errata" 917 "on LSI53C1030 occurred." 918 "sc->req_bufflen=0x%02x," 919 "xfer_cnt=0x%02x\n" , 920 scsi_bufflen(sc), 921 xfer_cnt); 922 } 923 if (((sc->sense_buffer[3] & 0x80) 924 != 0x80) && 925 (scsi_bufflen(sc) != 926 xfer_cnt + difftransfer)) { 927 sc->sense_buffer[2] = 928 MEDIUM_ERROR; 929 sc->sense_buffer[12] = 0xff; 930 sc->sense_buffer[13] = 0xff; 931 printk(KERN_WARNING 932 "Errata on LSI53C1030 occurred" 933 "sc->req_bufflen=0x%02x," 934 " xfer_cnt=0x%02x," 935 "difftransfer=0x%02x\n", 936 scsi_bufflen(sc), 937 xfer_cnt, 938 difftransfer); 939 } 940 } 941 942 /* 943 * If running against circa 200003dd 909 MPT f/w, 944 * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL 945 * (QUEUE_FULL) returned from device! --> get 0x0000?128 946 * and with SenseBytes set to 0. 947 */ 948 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL) 949 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq); 950 951 } 952 else if (scsi_state & 953 (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS) 954 ) { 955 /* 956 * What to do? 957 */ 958 sc->result = DID_SOFT_ERROR << 16; 959 } 960 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) { 961 /* Not real sure here either... */ 962 sc->result = DID_RESET << 16; 963 } 964 else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) { 965 /* Device Inq. data indicates that it supports 966 * QTags, but rejects QTag messages. 967 * This command completed OK. 968 * 969 * Not real sure here either so do nothing... */ 970 } 971 972 if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL) 973 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq); 974 975 /* Add handling of: 976 * Reservation Conflict, Busy, 977 * Command Terminated, CHECK 978 */ 979 break; 980 981 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */ 982 sc->result = DID_SOFT_ERROR << 16; 983 break; 984 985 case MPI_IOCSTATUS_INVALID_FUNCTION: /* 0x0001 */ 986 case MPI_IOCSTATUS_INVALID_SGL: /* 0x0003 */ 987 case MPI_IOCSTATUS_INTERNAL_ERROR: /* 0x0004 */ 988 case MPI_IOCSTATUS_RESERVED: /* 0x0005 */ 989 case MPI_IOCSTATUS_INVALID_FIELD: /* 0x0007 */ 990 case MPI_IOCSTATUS_INVALID_STATE: /* 0x0008 */ 991 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */ 992 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED: /* 0x004A */ 993 default: 994 /* 995 * What to do? 996 */ 997 sc->result = DID_SOFT_ERROR << 16; 998 break; 999 1000 } /* switch(status) */ 1001 1002 #ifdef CONFIG_FUSION_LOGGING 1003 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY)) 1004 mptscsih_info_scsiio(ioc, sc, pScsiReply); 1005 #endif 1006 1007 } /* end of address reply case */ 1008 out: 1009 /* Unmap the DMA buffers, if any. */ 1010 scsi_dma_unmap(sc); 1011 1012 scsi_done(sc); /* Issue the command callback */ 1013 1014 /* Free Chain buffers */ 1015 mptscsih_freeChainBuffers(ioc, req_idx); 1016 return 1; 1017 } 1018 1019 /* 1020 * mptscsih_flush_running_cmds - For each command found, search 1021 * Scsi_Host instance taskQ and reply to OS. 1022 * Called only if recovering from a FW reload. 1023 * @hd: Pointer to a SCSI HOST structure 1024 * 1025 * Returns: None. 1026 * 1027 * Must be called while new I/Os are being queued. 1028 */ 1029 void 1030 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd) 1031 { 1032 MPT_ADAPTER *ioc = hd->ioc; 1033 struct scsi_cmnd *sc; 1034 SCSIIORequest_t *mf = NULL; 1035 int ii; 1036 int channel, id; 1037 1038 for (ii= 0; ii < ioc->req_depth; ii++) { 1039 sc = mptscsih_getclear_scsi_lookup(ioc, ii); 1040 if (!sc) 1041 continue; 1042 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii); 1043 if (!mf) 1044 continue; 1045 channel = mf->Bus; 1046 id = mf->TargetID; 1047 mptscsih_freeChainBuffers(ioc, ii); 1048 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf); 1049 if ((unsigned char *)mf != sc->host_scribble) 1050 continue; 1051 scsi_dma_unmap(sc); 1052 sc->result = DID_RESET << 16; 1053 sc->host_scribble = NULL; 1054 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT 1055 "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, " 1056 "idx=%x\n", ioc->name, channel, id, sc, mf, ii)); 1057 scsi_done(sc); 1058 } 1059 } 1060 EXPORT_SYMBOL(mptscsih_flush_running_cmds); 1061 1062 /* 1063 * mptscsih_search_running_cmds - Delete any commands associated 1064 * with the specified target and lun. Function called only 1065 * when a lun is disable by mid-layer. 1066 * Do NOT access the referenced scsi_cmnd structure or 1067 * members. Will cause either a paging or NULL ptr error. 1068 * (BUT, BUT, BUT, the code does reference it! - mdr) 1069 * @hd: Pointer to a SCSI HOST structure 1070 * @vdevice: per device private data 1071 * 1072 * Returns: None. 1073 * 1074 * Called from slave_destroy. 1075 */ 1076 static void 1077 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice) 1078 { 1079 SCSIIORequest_t *mf = NULL; 1080 int ii; 1081 struct scsi_cmnd *sc; 1082 struct scsi_lun lun; 1083 MPT_ADAPTER *ioc = hd->ioc; 1084 unsigned long flags; 1085 1086 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1087 for (ii = 0; ii < ioc->req_depth; ii++) { 1088 if ((sc = ioc->ScsiLookup[ii]) != NULL) { 1089 1090 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii); 1091 if (mf == NULL) 1092 continue; 1093 /* If the device is a hidden raid component, then its 1094 * expected that the mf->function will be RAID_SCSI_IO 1095 */ 1096 if (vdevice->vtarget->tflags & 1097 MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function != 1098 MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) 1099 continue; 1100 1101 int_to_scsilun(vdevice->lun, &lun); 1102 if ((mf->Bus != vdevice->vtarget->channel) || 1103 (mf->TargetID != vdevice->vtarget->id) || 1104 memcmp(lun.scsi_lun, mf->LUN, 8)) 1105 continue; 1106 1107 if ((unsigned char *)mf != sc->host_scribble) 1108 continue; 1109 ioc->ScsiLookup[ii] = NULL; 1110 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1111 mptscsih_freeChainBuffers(ioc, ii); 1112 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf); 1113 scsi_dma_unmap(sc); 1114 sc->host_scribble = NULL; 1115 sc->result = DID_NO_CONNECT << 16; 1116 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, 1117 MYIOC_s_FMT "completing cmds: fw_channel %d, " 1118 "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name, 1119 vdevice->vtarget->channel, vdevice->vtarget->id, 1120 sc, mf, ii)); 1121 scsi_done(sc); 1122 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1123 } 1124 } 1125 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1126 return; 1127 } 1128 1129 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1130 1131 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1132 /* 1133 * mptscsih_report_queue_full - Report QUEUE_FULL status returned 1134 * from a SCSI target device. 1135 * @sc: Pointer to scsi_cmnd structure 1136 * @pScsiReply: Pointer to SCSIIOReply_t 1137 * @pScsiReq: Pointer to original SCSI request 1138 * 1139 * This routine periodically reports QUEUE_FULL status returned from a 1140 * SCSI target device. It reports this to the console via kernel 1141 * printk() API call, not more than once every 10 seconds. 1142 */ 1143 static void 1144 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq) 1145 { 1146 long time = jiffies; 1147 MPT_SCSI_HOST *hd; 1148 MPT_ADAPTER *ioc; 1149 1150 if (sc->device == NULL) 1151 return; 1152 if (sc->device->host == NULL) 1153 return; 1154 if ((hd = shost_priv(sc->device->host)) == NULL) 1155 return; 1156 ioc = hd->ioc; 1157 if (time - hd->last_queue_full > 10 * HZ) { 1158 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%llu) reported QUEUE_FULL!\n", 1159 ioc->name, 0, sc->device->id, sc->device->lun)); 1160 hd->last_queue_full = time; 1161 } 1162 } 1163 1164 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1165 /* 1166 * mptscsih_remove - Removed scsi devices 1167 * @pdev: Pointer to pci_dev structure 1168 * 1169 * 1170 */ 1171 void 1172 mptscsih_remove(struct pci_dev *pdev) 1173 { 1174 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1175 struct Scsi_Host *host = ioc->sh; 1176 MPT_SCSI_HOST *hd; 1177 int sz1; 1178 1179 if (host == NULL) 1180 hd = NULL; 1181 else 1182 hd = shost_priv(host); 1183 1184 mptscsih_shutdown(pdev); 1185 1186 sz1=0; 1187 1188 if (ioc->ScsiLookup != NULL) { 1189 sz1 = ioc->req_depth * sizeof(void *); 1190 kfree(ioc->ScsiLookup); 1191 ioc->ScsiLookup = NULL; 1192 } 1193 1194 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1195 "Free'd ScsiLookup (%d) memory\n", 1196 ioc->name, sz1)); 1197 1198 if (hd) 1199 kfree(hd->info_kbuf); 1200 1201 /* NULL the Scsi_Host pointer 1202 */ 1203 ioc->sh = NULL; 1204 1205 if (host) 1206 scsi_host_put(host); 1207 mpt_detach(pdev); 1208 1209 } 1210 1211 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1212 /* 1213 * mptscsih_shutdown - reboot notifier 1214 * 1215 */ 1216 void 1217 mptscsih_shutdown(struct pci_dev *pdev) 1218 { 1219 } 1220 1221 #ifdef CONFIG_PM 1222 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1223 /* 1224 * mptscsih_suspend - Fusion MPT scsi driver suspend routine. 1225 * 1226 * 1227 */ 1228 int 1229 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state) 1230 { 1231 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1232 1233 scsi_block_requests(ioc->sh); 1234 mptscsih_shutdown(pdev); 1235 return mpt_suspend(pdev,state); 1236 } 1237 1238 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1239 /* 1240 * mptscsih_resume - Fusion MPT scsi driver resume routine. 1241 * 1242 * 1243 */ 1244 int 1245 mptscsih_resume(struct pci_dev *pdev) 1246 { 1247 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1248 int rc; 1249 1250 rc = mpt_resume(pdev); 1251 scsi_unblock_requests(ioc->sh); 1252 return rc; 1253 } 1254 1255 #endif 1256 1257 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1258 /** 1259 * mptscsih_info - Return information about MPT adapter 1260 * @SChost: Pointer to Scsi_Host structure 1261 * 1262 * (linux scsi_host_template.info routine) 1263 * 1264 * Returns pointer to buffer where information was written. 1265 */ 1266 const char * 1267 mptscsih_info(struct Scsi_Host *SChost) 1268 { 1269 MPT_SCSI_HOST *h; 1270 int size = 0; 1271 1272 h = shost_priv(SChost); 1273 1274 if (h->info_kbuf == NULL) 1275 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL) 1276 return h->info_kbuf; 1277 h->info_kbuf[0] = '\0'; 1278 1279 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0); 1280 h->info_kbuf[size-1] = '\0'; 1281 1282 return h->info_kbuf; 1283 } 1284 1285 int mptscsih_show_info(struct seq_file *m, struct Scsi_Host *host) 1286 { 1287 MPT_SCSI_HOST *hd = shost_priv(host); 1288 MPT_ADAPTER *ioc = hd->ioc; 1289 1290 seq_printf(m, "%s: %s, ", ioc->name, ioc->prod_name); 1291 seq_printf(m, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word); 1292 seq_printf(m, "Ports=%d, ", ioc->facts.NumberOfPorts); 1293 seq_printf(m, "MaxQ=%d\n", ioc->req_depth); 1294 1295 return 0; 1296 } 1297 1298 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1299 #define ADD_INDEX_LOG(req_ent) do { } while(0) 1300 1301 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1302 /** 1303 * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine. 1304 * @SCpnt: Pointer to scsi_cmnd structure 1305 * 1306 * (linux scsi_host_template.queuecommand routine) 1307 * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest 1308 * from a linux scsi_cmnd request and send it to the IOC. 1309 * 1310 * Returns 0. (rtn value discarded by linux scsi mid-layer) 1311 */ 1312 int 1313 mptscsih_qcmd(struct scsi_cmnd *SCpnt) 1314 { 1315 MPT_SCSI_HOST *hd; 1316 MPT_FRAME_HDR *mf; 1317 SCSIIORequest_t *pScsiReq; 1318 VirtDevice *vdevice = SCpnt->device->hostdata; 1319 u32 datalen; 1320 u32 scsictl; 1321 u32 scsidir; 1322 u32 cmd_len; 1323 int my_idx; 1324 int ii; 1325 MPT_ADAPTER *ioc; 1326 1327 hd = shost_priv(SCpnt->device->host); 1328 ioc = hd->ioc; 1329 1330 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p\n", 1331 ioc->name, SCpnt)); 1332 1333 if (ioc->taskmgmt_quiesce_io) 1334 return SCSI_MLQUEUE_HOST_BUSY; 1335 1336 /* 1337 * Put together a MPT SCSI request... 1338 */ 1339 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) { 1340 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n", 1341 ioc->name)); 1342 return SCSI_MLQUEUE_HOST_BUSY; 1343 } 1344 1345 pScsiReq = (SCSIIORequest_t *) mf; 1346 1347 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 1348 1349 ADD_INDEX_LOG(my_idx); 1350 1351 /* TUR's being issued with scsictl=0x02000000 (DATA_IN)! 1352 * Seems we may receive a buffer (datalen>0) even when there 1353 * will be no data transfer! GRRRRR... 1354 */ 1355 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) { 1356 datalen = scsi_bufflen(SCpnt); 1357 scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */ 1358 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) { 1359 datalen = scsi_bufflen(SCpnt); 1360 scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */ 1361 } else { 1362 datalen = 0; 1363 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER; 1364 } 1365 1366 /* Default to untagged. Once a target structure has been allocated, 1367 * use the Inquiry data to determine if device supports tagged. 1368 */ 1369 if ((vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES) && 1370 SCpnt->device->tagged_supported) 1371 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ; 1372 else 1373 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED; 1374 1375 1376 /* Use the above information to set up the message frame 1377 */ 1378 pScsiReq->TargetID = (u8) vdevice->vtarget->id; 1379 pScsiReq->Bus = vdevice->vtarget->channel; 1380 pScsiReq->ChainOffset = 0; 1381 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) 1382 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH; 1383 else 1384 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST; 1385 pScsiReq->CDBLength = SCpnt->cmd_len; 1386 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE; 1387 pScsiReq->Reserved = 0; 1388 pScsiReq->MsgFlags = mpt_msg_flags(ioc); 1389 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN); 1390 pScsiReq->Control = cpu_to_le32(scsictl); 1391 1392 /* 1393 * Write SCSI CDB into the message 1394 */ 1395 cmd_len = SCpnt->cmd_len; 1396 for (ii=0; ii < cmd_len; ii++) 1397 pScsiReq->CDB[ii] = SCpnt->cmnd[ii]; 1398 1399 for (ii=cmd_len; ii < 16; ii++) 1400 pScsiReq->CDB[ii] = 0; 1401 1402 /* DataLength */ 1403 pScsiReq->DataLength = cpu_to_le32(datalen); 1404 1405 /* SenseBuffer low address */ 1406 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma 1407 + (my_idx * MPT_SENSE_BUFFER_ALLOC)); 1408 1409 /* Now add the SG list 1410 * Always have a SGE even if null length. 1411 */ 1412 if (datalen == 0) { 1413 /* Add a NULL SGE */ 1414 ioc->add_sge((char *)&pScsiReq->SGL, 1415 MPT_SGE_FLAGS_SSIMPLE_READ | 0, 1416 (dma_addr_t) -1); 1417 } else { 1418 /* Add a 32 or 64 bit SGE */ 1419 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS) 1420 goto fail; 1421 } 1422 1423 SCpnt->host_scribble = (unsigned char *)mf; 1424 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt); 1425 1426 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf); 1427 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n", 1428 ioc->name, SCpnt, mf, my_idx)); 1429 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf); 1430 return 0; 1431 1432 fail: 1433 mptscsih_freeChainBuffers(ioc, my_idx); 1434 mpt_free_msg_frame(ioc, mf); 1435 return SCSI_MLQUEUE_HOST_BUSY; 1436 } 1437 1438 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1439 /* 1440 * mptscsih_freeChainBuffers - Function to free chain buffers associated 1441 * with a SCSI IO request 1442 * @hd: Pointer to the MPT_SCSI_HOST instance 1443 * @req_idx: Index of the SCSI IO request frame. 1444 * 1445 * Called if SG chain buffer allocation fails and mptscsih callbacks. 1446 * No return. 1447 */ 1448 static void 1449 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx) 1450 { 1451 MPT_FRAME_HDR *chain; 1452 unsigned long flags; 1453 int chain_idx; 1454 int next; 1455 1456 /* Get the first chain index and reset 1457 * tracker state. 1458 */ 1459 chain_idx = ioc->ReqToChain[req_idx]; 1460 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN; 1461 1462 while (chain_idx != MPT_HOST_NO_CHAIN) { 1463 1464 /* Save the next chain buffer index */ 1465 next = ioc->ChainToChain[chain_idx]; 1466 1467 /* Free this chain buffer and reset 1468 * tracker 1469 */ 1470 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN; 1471 1472 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer 1473 + (chain_idx * ioc->req_sz)); 1474 1475 spin_lock_irqsave(&ioc->FreeQlock, flags); 1476 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ); 1477 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1478 1479 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n", 1480 ioc->name, chain_idx)); 1481 1482 /* handle next */ 1483 chain_idx = next; 1484 } 1485 return; 1486 } 1487 1488 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1489 /* 1490 * Reset Handling 1491 */ 1492 1493 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1494 /** 1495 * mptscsih_IssueTaskMgmt - Generic send Task Management function. 1496 * @hd: Pointer to MPT_SCSI_HOST structure 1497 * @type: Task Management type 1498 * @channel: channel number for task management 1499 * @id: Logical Target ID for reset (if appropriate) 1500 * @lun: Logical Unit for reset (if appropriate) 1501 * @ctx2abort: Context for the task to be aborted (if appropriate) 1502 * @timeout: timeout for task management control 1503 * 1504 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer) 1505 * or a non-interrupt thread. In the former, must not call schedule(). 1506 * 1507 * Not all fields are meaningfull for all task types. 1508 * 1509 * Returns 0 for SUCCESS, or FAILED. 1510 * 1511 **/ 1512 int 1513 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, u64 lun, 1514 int ctx2abort, ulong timeout) 1515 { 1516 MPT_FRAME_HDR *mf; 1517 SCSITaskMgmt_t *pScsiTm; 1518 int ii; 1519 int retval; 1520 MPT_ADAPTER *ioc = hd->ioc; 1521 u8 issue_hard_reset; 1522 u32 ioc_raw_state; 1523 unsigned long time_count; 1524 1525 issue_hard_reset = 0; 1526 ioc_raw_state = mpt_GetIocState(ioc, 0); 1527 1528 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) { 1529 printk(MYIOC_s_WARN_FMT 1530 "TaskMgmt type=%x: IOC Not operational (0x%x)!\n", 1531 ioc->name, type, ioc_raw_state); 1532 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n", 1533 ioc->name, __func__); 1534 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0) 1535 printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset " 1536 "FAILED!!\n", ioc->name); 1537 return 0; 1538 } 1539 1540 /* DOORBELL ACTIVE check is not required if 1541 * MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported. 1542 */ 1543 1544 if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) 1545 && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) && 1546 (ioc_raw_state & MPI_DOORBELL_ACTIVE)) { 1547 printk(MYIOC_s_WARN_FMT 1548 "TaskMgmt type=%x: ioc_state: " 1549 "DOORBELL_ACTIVE (0x%x)!\n", 1550 ioc->name, type, ioc_raw_state); 1551 return FAILED; 1552 } 1553 1554 mutex_lock(&ioc->taskmgmt_cmds.mutex); 1555 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) { 1556 mf = NULL; 1557 retval = FAILED; 1558 goto out; 1559 } 1560 1561 /* Return Fail to calling function if no message frames available. 1562 */ 1563 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) { 1564 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 1565 "TaskMgmt no msg frames!!\n", ioc->name)); 1566 retval = FAILED; 1567 mpt_clear_taskmgmt_in_progress_flag(ioc); 1568 goto out; 1569 } 1570 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n", 1571 ioc->name, mf)); 1572 1573 /* Format the Request 1574 */ 1575 pScsiTm = (SCSITaskMgmt_t *) mf; 1576 pScsiTm->TargetID = id; 1577 pScsiTm->Bus = channel; 1578 pScsiTm->ChainOffset = 0; 1579 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT; 1580 1581 pScsiTm->Reserved = 0; 1582 pScsiTm->TaskType = type; 1583 pScsiTm->Reserved1 = 0; 1584 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) 1585 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0; 1586 1587 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN); 1588 1589 for (ii=0; ii < 7; ii++) 1590 pScsiTm->Reserved2[ii] = 0; 1591 1592 pScsiTm->TaskMsgContext = ctx2abort; 1593 1594 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) " 1595 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort, 1596 type, timeout)); 1597 1598 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm); 1599 1600 INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status) 1601 time_count = jiffies; 1602 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) && 1603 (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) 1604 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf); 1605 else { 1606 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc, 1607 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP); 1608 if (retval) { 1609 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 1610 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n", 1611 ioc->name, mf, retval)); 1612 mpt_free_msg_frame(ioc, mf); 1613 mpt_clear_taskmgmt_in_progress_flag(ioc); 1614 goto out; 1615 } 1616 } 1617 1618 wait_for_completion_timeout(&ioc->taskmgmt_cmds.done, 1619 timeout*HZ); 1620 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) { 1621 retval = FAILED; 1622 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT 1623 "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf)); 1624 mpt_clear_taskmgmt_in_progress_flag(ioc); 1625 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) 1626 goto out; 1627 issue_hard_reset = 1; 1628 goto out; 1629 } 1630 1631 retval = mptscsih_taskmgmt_reply(ioc, type, 1632 (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply); 1633 1634 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1635 "TaskMgmt completed (%d seconds)\n", 1636 ioc->name, jiffies_to_msecs(jiffies - time_count)/1000)); 1637 1638 out: 1639 1640 CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status) 1641 if (issue_hard_reset) { 1642 printk(MYIOC_s_WARN_FMT 1643 "Issuing Reset from %s!! doorbell=0x%08x\n", 1644 ioc->name, __func__, mpt_GetIocState(ioc, 0)); 1645 retval = (ioc->bus_type == SAS) ? 1646 mpt_HardResetHandler(ioc, CAN_SLEEP) : 1647 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); 1648 mpt_free_msg_frame(ioc, mf); 1649 } 1650 1651 retval = (retval == 0) ? 0 : FAILED; 1652 mutex_unlock(&ioc->taskmgmt_cmds.mutex); 1653 return retval; 1654 } 1655 EXPORT_SYMBOL(mptscsih_IssueTaskMgmt); 1656 1657 static int 1658 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc) 1659 { 1660 switch (ioc->bus_type) { 1661 case FC: 1662 return 40; 1663 case SAS: 1664 return 30; 1665 case SPI: 1666 default: 1667 return 10; 1668 } 1669 } 1670 1671 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1672 /** 1673 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant 1674 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted 1675 * 1676 * (linux scsi_host_template.eh_abort_handler routine) 1677 * 1678 * Returns SUCCESS or FAILED. 1679 **/ 1680 int 1681 mptscsih_abort(struct scsi_cmnd * SCpnt) 1682 { 1683 MPT_SCSI_HOST *hd; 1684 MPT_FRAME_HDR *mf; 1685 u32 ctx2abort; 1686 int scpnt_idx; 1687 int retval; 1688 VirtDevice *vdevice; 1689 MPT_ADAPTER *ioc; 1690 1691 /* If we can't locate our host adapter structure, return FAILED status. 1692 */ 1693 if ((hd = shost_priv(SCpnt->device->host)) == NULL) { 1694 SCpnt->result = DID_RESET << 16; 1695 scsi_done(SCpnt); 1696 printk(KERN_ERR MYNAM ": task abort: " 1697 "can't locate host! (sc=%p)\n", SCpnt); 1698 return FAILED; 1699 } 1700 1701 ioc = hd->ioc; 1702 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n", 1703 ioc->name, SCpnt); 1704 scsi_print_command(SCpnt); 1705 1706 vdevice = SCpnt->device->hostdata; 1707 if (!vdevice || !vdevice->vtarget) { 1708 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1709 "task abort: device has been deleted (sc=%p)\n", 1710 ioc->name, SCpnt)); 1711 SCpnt->result = DID_NO_CONNECT << 16; 1712 scsi_done(SCpnt); 1713 retval = SUCCESS; 1714 goto out; 1715 } 1716 1717 /* Task aborts are not supported for hidden raid components. 1718 */ 1719 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) { 1720 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1721 "task abort: hidden raid component (sc=%p)\n", 1722 ioc->name, SCpnt)); 1723 SCpnt->result = DID_RESET << 16; 1724 retval = FAILED; 1725 goto out; 1726 } 1727 1728 /* Task aborts are not supported for volumes. 1729 */ 1730 if (vdevice->vtarget->raidVolume) { 1731 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1732 "task abort: raid volume (sc=%p)\n", 1733 ioc->name, SCpnt)); 1734 SCpnt->result = DID_RESET << 16; 1735 retval = FAILED; 1736 goto out; 1737 } 1738 1739 /* Find this command 1740 */ 1741 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) { 1742 /* Cmd not found in ScsiLookup. 1743 * Do OS callback. 1744 */ 1745 SCpnt->result = DID_RESET << 16; 1746 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: " 1747 "Command not in the active list! (sc=%p)\n", ioc->name, 1748 SCpnt)); 1749 retval = SUCCESS; 1750 goto out; 1751 } 1752 1753 if (ioc->timeouts < -1) 1754 ioc->timeouts++; 1755 1756 if (mpt_fwfault_debug) 1757 mpt_halt_firmware(ioc); 1758 1759 /* Most important! Set TaskMsgContext to SCpnt's MsgContext! 1760 * (the IO to be ABORT'd) 1761 * 1762 * NOTE: Since we do not byteswap MsgContext, we do not 1763 * swap it here either. It is an opaque cookie to 1764 * the controller, so it does not matter. -DaveM 1765 */ 1766 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx); 1767 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext; 1768 retval = mptscsih_IssueTaskMgmt(hd, 1769 MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK, 1770 vdevice->vtarget->channel, 1771 vdevice->vtarget->id, vdevice->lun, 1772 ctx2abort, mptscsih_get_tm_timeout(ioc)); 1773 1774 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) { 1775 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1776 "task abort: command still in active list! (sc=%p)\n", 1777 ioc->name, SCpnt)); 1778 retval = FAILED; 1779 } else { 1780 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1781 "task abort: command cleared from active list! (sc=%p)\n", 1782 ioc->name, SCpnt)); 1783 retval = SUCCESS; 1784 } 1785 1786 out: 1787 printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n", 1788 ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval, 1789 SCpnt); 1790 1791 return retval; 1792 } 1793 1794 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1795 /** 1796 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant 1797 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to 1798 * 1799 * (linux scsi_host_template.eh_dev_reset_handler routine) 1800 * 1801 * Returns SUCCESS or FAILED. 1802 **/ 1803 int 1804 mptscsih_dev_reset(struct scsi_cmnd * SCpnt) 1805 { 1806 MPT_SCSI_HOST *hd; 1807 int retval; 1808 VirtDevice *vdevice; 1809 MPT_ADAPTER *ioc; 1810 1811 /* If we can't locate our host adapter structure, return FAILED status. 1812 */ 1813 if ((hd = shost_priv(SCpnt->device->host)) == NULL){ 1814 printk(KERN_ERR MYNAM ": target reset: " 1815 "Can't locate host! (sc=%p)\n", SCpnt); 1816 return FAILED; 1817 } 1818 1819 ioc = hd->ioc; 1820 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n", 1821 ioc->name, SCpnt); 1822 scsi_print_command(SCpnt); 1823 1824 vdevice = SCpnt->device->hostdata; 1825 if (!vdevice || !vdevice->vtarget) { 1826 retval = 0; 1827 goto out; 1828 } 1829 1830 /* Target reset to hidden raid component is not supported 1831 */ 1832 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) { 1833 retval = FAILED; 1834 goto out; 1835 } 1836 1837 retval = mptscsih_IssueTaskMgmt(hd, 1838 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 1839 vdevice->vtarget->channel, 1840 vdevice->vtarget->id, 0, 0, 1841 mptscsih_get_tm_timeout(ioc)); 1842 1843 out: 1844 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n", 1845 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); 1846 1847 if (retval == 0) 1848 return SUCCESS; 1849 else 1850 return FAILED; 1851 } 1852 1853 1854 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1855 /** 1856 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant 1857 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to 1858 * 1859 * (linux scsi_host_template.eh_bus_reset_handler routine) 1860 * 1861 * Returns SUCCESS or FAILED. 1862 **/ 1863 int 1864 mptscsih_bus_reset(struct scsi_cmnd * SCpnt) 1865 { 1866 MPT_SCSI_HOST *hd; 1867 int retval; 1868 VirtDevice *vdevice; 1869 MPT_ADAPTER *ioc; 1870 1871 /* If we can't locate our host adapter structure, return FAILED status. 1872 */ 1873 if ((hd = shost_priv(SCpnt->device->host)) == NULL){ 1874 printk(KERN_ERR MYNAM ": bus reset: " 1875 "Can't locate host! (sc=%p)\n", SCpnt); 1876 return FAILED; 1877 } 1878 1879 ioc = hd->ioc; 1880 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n", 1881 ioc->name, SCpnt); 1882 scsi_print_command(SCpnt); 1883 1884 if (ioc->timeouts < -1) 1885 ioc->timeouts++; 1886 1887 vdevice = SCpnt->device->hostdata; 1888 if (!vdevice || !vdevice->vtarget) 1889 return SUCCESS; 1890 retval = mptscsih_IssueTaskMgmt(hd, 1891 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS, 1892 vdevice->vtarget->channel, 0, 0, 0, 1893 mptscsih_get_tm_timeout(ioc)); 1894 1895 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n", 1896 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); 1897 1898 if (retval == 0) 1899 return SUCCESS; 1900 else 1901 return FAILED; 1902 } 1903 1904 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1905 /** 1906 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant) 1907 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to 1908 * 1909 * (linux scsi_host_template.eh_host_reset_handler routine) 1910 * 1911 * Returns SUCCESS or FAILED. 1912 */ 1913 int 1914 mptscsih_host_reset(struct scsi_cmnd *SCpnt) 1915 { 1916 MPT_SCSI_HOST * hd; 1917 int status = SUCCESS; 1918 MPT_ADAPTER *ioc; 1919 int retval; 1920 1921 /* If we can't locate the host to reset, then we failed. */ 1922 if ((hd = shost_priv(SCpnt->device->host)) == NULL){ 1923 printk(KERN_ERR MYNAM ": host reset: " 1924 "Can't locate host! (sc=%p)\n", SCpnt); 1925 return FAILED; 1926 } 1927 1928 /* make sure we have no outstanding commands at this stage */ 1929 mptscsih_flush_running_cmds(hd); 1930 1931 ioc = hd->ioc; 1932 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n", 1933 ioc->name, SCpnt); 1934 1935 /* If our attempts to reset the host failed, then return a failed 1936 * status. The host will be taken off line by the SCSI mid-layer. 1937 */ 1938 retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); 1939 if (retval < 0) 1940 status = FAILED; 1941 else 1942 status = SUCCESS; 1943 1944 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n", 1945 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); 1946 1947 return status; 1948 } 1949 1950 static int 1951 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type, 1952 SCSITaskMgmtReply_t *pScsiTmReply) 1953 { 1954 u16 iocstatus; 1955 u32 termination_count; 1956 int retval; 1957 1958 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) { 1959 retval = FAILED; 1960 goto out; 1961 } 1962 1963 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply); 1964 1965 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK; 1966 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount); 1967 1968 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1969 "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n" 1970 "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n" 1971 "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus, 1972 pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus), 1973 le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode, 1974 termination_count)); 1975 1976 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 && 1977 pScsiTmReply->ResponseCode) 1978 mptscsih_taskmgmt_response_code(ioc, 1979 pScsiTmReply->ResponseCode); 1980 1981 if (iocstatus == MPI_IOCSTATUS_SUCCESS) { 1982 retval = 0; 1983 goto out; 1984 } 1985 1986 retval = FAILED; 1987 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) { 1988 if (termination_count == 1) 1989 retval = 0; 1990 goto out; 1991 } 1992 1993 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED || 1994 iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED) 1995 retval = 0; 1996 1997 out: 1998 return retval; 1999 } 2000 2001 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2002 void 2003 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code) 2004 { 2005 char *desc; 2006 2007 switch (response_code) { 2008 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE: 2009 desc = "The task completed."; 2010 break; 2011 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME: 2012 desc = "The IOC received an invalid frame status."; 2013 break; 2014 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED: 2015 desc = "The task type is not supported."; 2016 break; 2017 case MPI_SCSITASKMGMT_RSP_TM_FAILED: 2018 desc = "The requested task failed."; 2019 break; 2020 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED: 2021 desc = "The task completed successfully."; 2022 break; 2023 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN: 2024 desc = "The LUN request is invalid."; 2025 break; 2026 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC: 2027 desc = "The task is in the IOC queue and has not been sent to target."; 2028 break; 2029 default: 2030 desc = "unknown"; 2031 break; 2032 } 2033 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n", 2034 ioc->name, response_code, desc); 2035 } 2036 EXPORT_SYMBOL(mptscsih_taskmgmt_response_code); 2037 2038 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2039 /** 2040 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver 2041 * @ioc: Pointer to MPT_ADAPTER structure 2042 * @mf: Pointer to SCSI task mgmt request frame 2043 * @mr: Pointer to SCSI task mgmt reply frame 2044 * 2045 * This routine is called from mptbase.c::mpt_interrupt() at the completion 2046 * of any SCSI task management request. 2047 * This routine is registered with the MPT (base) driver at driver 2048 * load/init time via the mpt_register() API call. 2049 * 2050 * Returns 1 indicating alloc'd request frame ptr should be freed. 2051 **/ 2052 int 2053 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, 2054 MPT_FRAME_HDR *mr) 2055 { 2056 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2057 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr)); 2058 2059 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD; 2060 2061 if (!mr) 2062 goto out; 2063 2064 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID; 2065 memcpy(ioc->taskmgmt_cmds.reply, mr, 2066 min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength)); 2067 out: 2068 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) { 2069 mpt_clear_taskmgmt_in_progress_flag(ioc); 2070 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING; 2071 complete(&ioc->taskmgmt_cmds.done); 2072 if (ioc->bus_type == SAS) 2073 ioc->schedule_target_reset(ioc); 2074 return 1; 2075 } 2076 return 0; 2077 } 2078 2079 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2080 /* 2081 * This is anyones guess quite frankly. 2082 */ 2083 int 2084 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev, 2085 sector_t capacity, int geom[]) 2086 { 2087 int heads; 2088 int sectors; 2089 sector_t cylinders; 2090 ulong dummy; 2091 2092 heads = 64; 2093 sectors = 32; 2094 2095 dummy = heads * sectors; 2096 cylinders = capacity; 2097 sector_div(cylinders,dummy); 2098 2099 /* 2100 * Handle extended translation size for logical drives 2101 * > 1Gb 2102 */ 2103 if ((ulong)capacity >= 0x200000) { 2104 heads = 255; 2105 sectors = 63; 2106 dummy = heads * sectors; 2107 cylinders = capacity; 2108 sector_div(cylinders,dummy); 2109 } 2110 2111 /* return result */ 2112 geom[0] = heads; 2113 geom[1] = sectors; 2114 geom[2] = cylinders; 2115 2116 return 0; 2117 } 2118 2119 /* Search IOC page 3 to determine if this is hidden physical disk 2120 * 2121 */ 2122 int 2123 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id) 2124 { 2125 struct inactive_raid_component_info *component_info; 2126 int i, j; 2127 RaidPhysDiskPage1_t *phys_disk; 2128 int rc = 0; 2129 int num_paths; 2130 2131 if (!ioc->raid_data.pIocPg3) 2132 goto out; 2133 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2134 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) && 2135 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) { 2136 rc = 1; 2137 goto out; 2138 } 2139 } 2140 2141 if (ioc->bus_type != SAS) 2142 goto out; 2143 2144 /* 2145 * Check if dual path 2146 */ 2147 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2148 num_paths = mpt_raid_phys_disk_get_num_paths(ioc, 2149 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum); 2150 if (num_paths < 2) 2151 continue; 2152 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) + 2153 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL); 2154 if (!phys_disk) 2155 continue; 2156 if ((mpt_raid_phys_disk_pg1(ioc, 2157 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum, 2158 phys_disk))) { 2159 kfree(phys_disk); 2160 continue; 2161 } 2162 for (j = 0; j < num_paths; j++) { 2163 if ((phys_disk->Path[j].Flags & 2164 MPI_RAID_PHYSDISK1_FLAG_INVALID)) 2165 continue; 2166 if ((phys_disk->Path[j].Flags & 2167 MPI_RAID_PHYSDISK1_FLAG_BROKEN)) 2168 continue; 2169 if ((id == phys_disk->Path[j].PhysDiskID) && 2170 (channel == phys_disk->Path[j].PhysDiskBus)) { 2171 rc = 1; 2172 kfree(phys_disk); 2173 goto out; 2174 } 2175 } 2176 kfree(phys_disk); 2177 } 2178 2179 2180 /* 2181 * Check inactive list for matching phys disks 2182 */ 2183 if (list_empty(&ioc->raid_data.inactive_list)) 2184 goto out; 2185 2186 mutex_lock(&ioc->raid_data.inactive_list_mutex); 2187 list_for_each_entry(component_info, &ioc->raid_data.inactive_list, 2188 list) { 2189 if ((component_info->d.PhysDiskID == id) && 2190 (component_info->d.PhysDiskBus == channel)) 2191 rc = 1; 2192 } 2193 mutex_unlock(&ioc->raid_data.inactive_list_mutex); 2194 2195 out: 2196 return rc; 2197 } 2198 EXPORT_SYMBOL(mptscsih_is_phys_disk); 2199 2200 u8 2201 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id) 2202 { 2203 struct inactive_raid_component_info *component_info; 2204 int i, j; 2205 RaidPhysDiskPage1_t *phys_disk; 2206 int rc = -ENXIO; 2207 int num_paths; 2208 2209 if (!ioc->raid_data.pIocPg3) 2210 goto out; 2211 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2212 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) && 2213 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) { 2214 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum; 2215 goto out; 2216 } 2217 } 2218 2219 if (ioc->bus_type != SAS) 2220 goto out; 2221 2222 /* 2223 * Check if dual path 2224 */ 2225 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2226 num_paths = mpt_raid_phys_disk_get_num_paths(ioc, 2227 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum); 2228 if (num_paths < 2) 2229 continue; 2230 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) + 2231 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL); 2232 if (!phys_disk) 2233 continue; 2234 if ((mpt_raid_phys_disk_pg1(ioc, 2235 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum, 2236 phys_disk))) { 2237 kfree(phys_disk); 2238 continue; 2239 } 2240 for (j = 0; j < num_paths; j++) { 2241 if ((phys_disk->Path[j].Flags & 2242 MPI_RAID_PHYSDISK1_FLAG_INVALID)) 2243 continue; 2244 if ((phys_disk->Path[j].Flags & 2245 MPI_RAID_PHYSDISK1_FLAG_BROKEN)) 2246 continue; 2247 if ((id == phys_disk->Path[j].PhysDiskID) && 2248 (channel == phys_disk->Path[j].PhysDiskBus)) { 2249 rc = phys_disk->PhysDiskNum; 2250 kfree(phys_disk); 2251 goto out; 2252 } 2253 } 2254 kfree(phys_disk); 2255 } 2256 2257 /* 2258 * Check inactive list for matching phys disks 2259 */ 2260 if (list_empty(&ioc->raid_data.inactive_list)) 2261 goto out; 2262 2263 mutex_lock(&ioc->raid_data.inactive_list_mutex); 2264 list_for_each_entry(component_info, &ioc->raid_data.inactive_list, 2265 list) { 2266 if ((component_info->d.PhysDiskID == id) && 2267 (component_info->d.PhysDiskBus == channel)) 2268 rc = component_info->d.PhysDiskNum; 2269 } 2270 mutex_unlock(&ioc->raid_data.inactive_list_mutex); 2271 2272 out: 2273 return rc; 2274 } 2275 EXPORT_SYMBOL(mptscsih_raid_id_to_num); 2276 2277 /* 2278 * OS entry point to allow for host driver to free allocated memory 2279 * Called if no device present or device being unloaded 2280 */ 2281 void 2282 mptscsih_slave_destroy(struct scsi_device *sdev) 2283 { 2284 struct Scsi_Host *host = sdev->host; 2285 MPT_SCSI_HOST *hd = shost_priv(host); 2286 VirtTarget *vtarget; 2287 VirtDevice *vdevice; 2288 struct scsi_target *starget; 2289 2290 starget = scsi_target(sdev); 2291 vtarget = starget->hostdata; 2292 vdevice = sdev->hostdata; 2293 if (!vdevice) 2294 return; 2295 2296 mptscsih_search_running_cmds(hd, vdevice); 2297 vtarget->num_luns--; 2298 mptscsih_synchronize_cache(hd, vdevice); 2299 kfree(vdevice); 2300 sdev->hostdata = NULL; 2301 } 2302 2303 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2304 /* 2305 * mptscsih_change_queue_depth - This function will set a devices queue depth 2306 * @sdev: per scsi_device pointer 2307 * @qdepth: requested queue depth 2308 * 2309 * Adding support for new 'change_queue_depth' api. 2310 */ 2311 int 2312 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth) 2313 { 2314 MPT_SCSI_HOST *hd = shost_priv(sdev->host); 2315 VirtTarget *vtarget; 2316 struct scsi_target *starget; 2317 int max_depth; 2318 MPT_ADAPTER *ioc = hd->ioc; 2319 2320 starget = scsi_target(sdev); 2321 vtarget = starget->hostdata; 2322 2323 if (ioc->bus_type == SPI) { 2324 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)) 2325 max_depth = 1; 2326 else if (sdev->type == TYPE_DISK && 2327 vtarget->minSyncFactor <= MPT_ULTRA160) 2328 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH; 2329 else 2330 max_depth = MPT_SCSI_CMD_PER_DEV_LOW; 2331 } else 2332 max_depth = ioc->sh->can_queue; 2333 2334 if (!sdev->tagged_supported) 2335 max_depth = 1; 2336 2337 if (qdepth > max_depth) 2338 qdepth = max_depth; 2339 2340 return scsi_change_queue_depth(sdev, qdepth); 2341 } 2342 2343 /* 2344 * OS entry point to adjust the queue_depths on a per-device basis. 2345 * Called once per device the bus scan. Use it to force the queue_depth 2346 * member to 1 if a device does not support Q tags. 2347 * Return non-zero if fails. 2348 */ 2349 int 2350 mptscsih_slave_configure(struct scsi_device *sdev) 2351 { 2352 struct Scsi_Host *sh = sdev->host; 2353 VirtTarget *vtarget; 2354 VirtDevice *vdevice; 2355 struct scsi_target *starget; 2356 MPT_SCSI_HOST *hd = shost_priv(sh); 2357 MPT_ADAPTER *ioc = hd->ioc; 2358 2359 starget = scsi_target(sdev); 2360 vtarget = starget->hostdata; 2361 vdevice = sdev->hostdata; 2362 2363 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2364 "device @ %p, channel=%d, id=%d, lun=%llu\n", 2365 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun)); 2366 if (ioc->bus_type == SPI) 2367 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2368 "sdtr %d wdtr %d ppr %d inq length=%d\n", 2369 ioc->name, sdev->sdtr, sdev->wdtr, 2370 sdev->ppr, sdev->inquiry_len)); 2371 2372 vdevice->configured_lun = 1; 2373 2374 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2375 "Queue depth=%d, tflags=%x\n", 2376 ioc->name, sdev->queue_depth, vtarget->tflags)); 2377 2378 if (ioc->bus_type == SPI) 2379 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2380 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n", 2381 ioc->name, vtarget->negoFlags, vtarget->maxOffset, 2382 vtarget->minSyncFactor)); 2383 2384 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH); 2385 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2386 "tagged %d, simple %d\n", 2387 ioc->name,sdev->tagged_supported, sdev->simple_tags)); 2388 2389 blk_queue_dma_alignment (sdev->request_queue, 512 - 1); 2390 2391 return 0; 2392 } 2393 2394 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2395 /* 2396 * Private routines... 2397 */ 2398 2399 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2400 /* Utility function to copy sense data from the scsi_cmnd buffer 2401 * to the FC and SCSI target structures. 2402 * 2403 */ 2404 static void 2405 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply) 2406 { 2407 VirtDevice *vdevice; 2408 SCSIIORequest_t *pReq; 2409 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount); 2410 MPT_ADAPTER *ioc = hd->ioc; 2411 2412 /* Get target structure 2413 */ 2414 pReq = (SCSIIORequest_t *) mf; 2415 vdevice = sc->device->hostdata; 2416 2417 if (sense_count) { 2418 u8 *sense_data; 2419 int req_index; 2420 2421 /* Copy the sense received into the scsi command block. */ 2422 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 2423 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC)); 2424 memcpy(sc->sense_buffer, sense_data, MPT_SENSE_BUFFER_ALLOC); 2425 2426 /* Log SMART data (asc = 0x5D, non-IM case only) if required. 2427 */ 2428 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) { 2429 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) { 2430 int idx; 2431 2432 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE; 2433 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE; 2434 ioc->events[idx].eventContext = ioc->eventContext; 2435 2436 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) | 2437 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) | 2438 (sc->device->channel << 8) | sc->device->id; 2439 2440 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12]; 2441 2442 ioc->eventContext++; 2443 if (ioc->pcidev->vendor == 2444 PCI_VENDOR_ID_IBM) { 2445 mptscsih_issue_sep_command(ioc, 2446 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT); 2447 vdevice->vtarget->tflags |= 2448 MPT_TARGET_FLAGS_LED_ON; 2449 } 2450 } 2451 } 2452 } else { 2453 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n", 2454 ioc->name)); 2455 } 2456 } 2457 2458 /** 2459 * mptscsih_get_scsi_lookup - retrieves scmd entry 2460 * @ioc: Pointer to MPT_ADAPTER structure 2461 * @i: index into the array 2462 * 2463 * Returns the scsi_cmd pointer 2464 */ 2465 struct scsi_cmnd * 2466 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i) 2467 { 2468 unsigned long flags; 2469 struct scsi_cmnd *scmd; 2470 2471 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2472 scmd = ioc->ScsiLookup[i]; 2473 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2474 2475 return scmd; 2476 } 2477 EXPORT_SYMBOL(mptscsih_get_scsi_lookup); 2478 2479 /** 2480 * mptscsih_getclear_scsi_lookup - retrieves and clears scmd entry from ScsiLookup[] array list 2481 * @ioc: Pointer to MPT_ADAPTER structure 2482 * @i: index into the array 2483 * 2484 * Returns the scsi_cmd pointer 2485 * 2486 **/ 2487 static struct scsi_cmnd * 2488 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i) 2489 { 2490 unsigned long flags; 2491 struct scsi_cmnd *scmd; 2492 2493 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2494 scmd = ioc->ScsiLookup[i]; 2495 ioc->ScsiLookup[i] = NULL; 2496 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2497 2498 return scmd; 2499 } 2500 2501 /** 2502 * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list 2503 * 2504 * @ioc: Pointer to MPT_ADAPTER structure 2505 * @i: index into the array 2506 * @scmd: scsi_cmnd pointer 2507 * 2508 **/ 2509 static void 2510 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd) 2511 { 2512 unsigned long flags; 2513 2514 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2515 ioc->ScsiLookup[i] = scmd; 2516 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2517 } 2518 2519 /** 2520 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list 2521 * @ioc: Pointer to MPT_ADAPTER structure 2522 * @sc: scsi_cmnd pointer 2523 */ 2524 static int 2525 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc) 2526 { 2527 unsigned long flags; 2528 int i, index=-1; 2529 2530 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2531 for (i = 0; i < ioc->req_depth; i++) { 2532 if (ioc->ScsiLookup[i] == sc) { 2533 index = i; 2534 goto out; 2535 } 2536 } 2537 2538 out: 2539 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2540 return index; 2541 } 2542 2543 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2544 int 2545 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 2546 { 2547 MPT_SCSI_HOST *hd; 2548 2549 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL) 2550 return 0; 2551 2552 hd = shost_priv(ioc->sh); 2553 switch (reset_phase) { 2554 case MPT_IOC_SETUP_RESET: 2555 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2556 "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__)); 2557 break; 2558 case MPT_IOC_PRE_RESET: 2559 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2560 "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__)); 2561 mptscsih_flush_running_cmds(hd); 2562 break; 2563 case MPT_IOC_POST_RESET: 2564 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2565 "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__)); 2566 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) { 2567 ioc->internal_cmds.status |= 2568 MPT_MGMT_STATUS_DID_IOCRESET; 2569 complete(&ioc->internal_cmds.done); 2570 } 2571 break; 2572 default: 2573 break; 2574 } 2575 return 1; /* currently means nothing really */ 2576 } 2577 2578 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2579 int 2580 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 2581 { 2582 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 2583 2584 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2585 "MPT event (=%02Xh) routed to SCSI host driver!\n", 2586 ioc->name, event)); 2587 2588 if ((event == MPI_EVENT_IOC_BUS_RESET || 2589 event == MPI_EVENT_EXT_BUS_RESET) && 2590 (ioc->bus_type == SPI) && (ioc->soft_resets < -1)) 2591 ioc->soft_resets++; 2592 2593 return 1; /* currently means nothing really */ 2594 } 2595 2596 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2597 /* 2598 * Bus Scan and Domain Validation functionality ... 2599 */ 2600 2601 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2602 /* 2603 * mptscsih_scandv_complete - Scan and DV callback routine registered 2604 * to Fustion MPT (base) driver. 2605 * 2606 * @ioc: Pointer to MPT_ADAPTER structure 2607 * @mf: Pointer to original MPT request frame 2608 * @mr: Pointer to MPT reply frame (NULL if TurboReply) 2609 * 2610 * This routine is called from mpt.c::mpt_interrupt() at the completion 2611 * of any SCSI IO request. 2612 * This routine is registered with the Fusion MPT (base) driver at driver 2613 * load/init time via the mpt_register() API call. 2614 * 2615 * Returns 1 indicating alloc'd request frame ptr should be freed. 2616 * 2617 * Remark: Sets a completion code and (possibly) saves sense data 2618 * in the IOC member localReply structure. 2619 * Used ONLY for DV and other internal commands. 2620 */ 2621 int 2622 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, 2623 MPT_FRAME_HDR *reply) 2624 { 2625 SCSIIORequest_t *pReq; 2626 SCSIIOReply_t *pReply; 2627 u8 cmd; 2628 u16 req_idx; 2629 u8 *sense_data; 2630 int sz; 2631 2632 ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD; 2633 ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD; 2634 if (!reply) 2635 goto out; 2636 2637 pReply = (SCSIIOReply_t *) reply; 2638 pReq = (SCSIIORequest_t *) req; 2639 ioc->internal_cmds.completion_code = 2640 mptscsih_get_completion_code(ioc, req, reply); 2641 ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID; 2642 memcpy(ioc->internal_cmds.reply, reply, 2643 min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength)); 2644 cmd = reply->u.hdr.Function; 2645 if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) || 2646 (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) && 2647 (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) { 2648 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx); 2649 sense_data = ((u8 *)ioc->sense_buf_pool + 2650 (req_idx * MPT_SENSE_BUFFER_ALLOC)); 2651 sz = min_t(int, pReq->SenseBufferLength, 2652 MPT_SENSE_BUFFER_ALLOC); 2653 memcpy(ioc->internal_cmds.sense, sense_data, sz); 2654 } 2655 out: 2656 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING)) 2657 return 0; 2658 ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING; 2659 complete(&ioc->internal_cmds.done); 2660 return 1; 2661 } 2662 2663 2664 /** 2665 * mptscsih_get_completion_code - get completion code from MPT request 2666 * @ioc: Pointer to MPT_ADAPTER structure 2667 * @req: Pointer to original MPT request frame 2668 * @reply: Pointer to MPT reply frame (NULL if TurboReply) 2669 * 2670 **/ 2671 static int 2672 mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, 2673 MPT_FRAME_HDR *reply) 2674 { 2675 SCSIIOReply_t *pReply; 2676 MpiRaidActionReply_t *pr; 2677 u8 scsi_status; 2678 u16 status; 2679 int completion_code; 2680 2681 pReply = (SCSIIOReply_t *)reply; 2682 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK; 2683 scsi_status = pReply->SCSIStatus; 2684 2685 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2686 "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh," 2687 "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState, 2688 scsi_status, le32_to_cpu(pReply->IOCLogInfo))); 2689 2690 switch (status) { 2691 2692 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */ 2693 completion_code = MPT_SCANDV_SELECTION_TIMEOUT; 2694 break; 2695 2696 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */ 2697 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */ 2698 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */ 2699 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */ 2700 completion_code = MPT_SCANDV_DID_RESET; 2701 break; 2702 2703 case MPI_IOCSTATUS_BUSY: 2704 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES: 2705 completion_code = MPT_SCANDV_BUSY; 2706 break; 2707 2708 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */ 2709 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */ 2710 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */ 2711 if (pReply->Function == MPI_FUNCTION_CONFIG) { 2712 completion_code = MPT_SCANDV_GOOD; 2713 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) { 2714 pr = (MpiRaidActionReply_t *)reply; 2715 if (le16_to_cpu(pr->ActionStatus) == 2716 MPI_RAID_ACTION_ASTATUS_SUCCESS) 2717 completion_code = MPT_SCANDV_GOOD; 2718 else 2719 completion_code = MPT_SCANDV_SOME_ERROR; 2720 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) 2721 completion_code = MPT_SCANDV_SENSE; 2722 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) { 2723 if (req->u.scsireq.CDB[0] == INQUIRY) 2724 completion_code = MPT_SCANDV_ISSUE_SENSE; 2725 else 2726 completion_code = MPT_SCANDV_DID_RESET; 2727 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS) 2728 completion_code = MPT_SCANDV_DID_RESET; 2729 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED) 2730 completion_code = MPT_SCANDV_DID_RESET; 2731 else if (scsi_status == MPI_SCSI_STATUS_BUSY) 2732 completion_code = MPT_SCANDV_BUSY; 2733 else 2734 completion_code = MPT_SCANDV_GOOD; 2735 break; 2736 2737 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */ 2738 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED) 2739 completion_code = MPT_SCANDV_DID_RESET; 2740 else 2741 completion_code = MPT_SCANDV_SOME_ERROR; 2742 break; 2743 default: 2744 completion_code = MPT_SCANDV_SOME_ERROR; 2745 break; 2746 2747 } /* switch(status) */ 2748 2749 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2750 " completionCode set to %08xh\n", ioc->name, completion_code)); 2751 return completion_code; 2752 } 2753 2754 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2755 /** 2756 * mptscsih_do_cmd - Do internal command. 2757 * @hd: MPT_SCSI_HOST pointer 2758 * @io: INTERNAL_CMD pointer. 2759 * 2760 * Issue the specified internally generated command and do command 2761 * specific cleanup. For bus scan / DV only. 2762 * NOTES: If command is Inquiry and status is good, 2763 * initialize a target structure, save the data 2764 * 2765 * Remark: Single threaded access only. 2766 * 2767 * Return: 2768 * < 0 if an illegal command or no resources 2769 * 2770 * 0 if good 2771 * 2772 * > 0 if command complete but some type of completion error. 2773 */ 2774 static int 2775 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io) 2776 { 2777 MPT_FRAME_HDR *mf; 2778 SCSIIORequest_t *pScsiReq; 2779 int my_idx, ii, dir; 2780 int timeout; 2781 char cmdLen; 2782 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; 2783 u8 cmd = io->cmd; 2784 MPT_ADAPTER *ioc = hd->ioc; 2785 int ret = 0; 2786 unsigned long timeleft; 2787 unsigned long flags; 2788 2789 /* don't send internal command during diag reset */ 2790 spin_lock_irqsave(&ioc->taskmgmt_lock, flags); 2791 if (ioc->ioc_reset_in_progress) { 2792 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); 2793 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2794 "%s: busy with host reset\n", ioc->name, __func__)); 2795 return MPT_SCANDV_BUSY; 2796 } 2797 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); 2798 2799 mutex_lock(&ioc->internal_cmds.mutex); 2800 2801 /* Set command specific information 2802 */ 2803 switch (cmd) { 2804 case INQUIRY: 2805 cmdLen = 6; 2806 dir = MPI_SCSIIO_CONTROL_READ; 2807 CDB[0] = cmd; 2808 CDB[4] = io->size; 2809 timeout = 10; 2810 break; 2811 2812 case TEST_UNIT_READY: 2813 cmdLen = 6; 2814 dir = MPI_SCSIIO_CONTROL_READ; 2815 timeout = 10; 2816 break; 2817 2818 case START_STOP: 2819 cmdLen = 6; 2820 dir = MPI_SCSIIO_CONTROL_READ; 2821 CDB[0] = cmd; 2822 CDB[4] = 1; /*Spin up the disk */ 2823 timeout = 15; 2824 break; 2825 2826 case REQUEST_SENSE: 2827 cmdLen = 6; 2828 CDB[0] = cmd; 2829 CDB[4] = io->size; 2830 dir = MPI_SCSIIO_CONTROL_READ; 2831 timeout = 10; 2832 break; 2833 2834 case READ_BUFFER: 2835 cmdLen = 10; 2836 dir = MPI_SCSIIO_CONTROL_READ; 2837 CDB[0] = cmd; 2838 if (io->flags & MPT_ICFLAG_ECHO) { 2839 CDB[1] = 0x0A; 2840 } else { 2841 CDB[1] = 0x02; 2842 } 2843 2844 if (io->flags & MPT_ICFLAG_BUF_CAP) { 2845 CDB[1] |= 0x01; 2846 } 2847 CDB[6] = (io->size >> 16) & 0xFF; 2848 CDB[7] = (io->size >> 8) & 0xFF; 2849 CDB[8] = io->size & 0xFF; 2850 timeout = 10; 2851 break; 2852 2853 case WRITE_BUFFER: 2854 cmdLen = 10; 2855 dir = MPI_SCSIIO_CONTROL_WRITE; 2856 CDB[0] = cmd; 2857 if (io->flags & MPT_ICFLAG_ECHO) { 2858 CDB[1] = 0x0A; 2859 } else { 2860 CDB[1] = 0x02; 2861 } 2862 CDB[6] = (io->size >> 16) & 0xFF; 2863 CDB[7] = (io->size >> 8) & 0xFF; 2864 CDB[8] = io->size & 0xFF; 2865 timeout = 10; 2866 break; 2867 2868 case RESERVE: 2869 cmdLen = 6; 2870 dir = MPI_SCSIIO_CONTROL_READ; 2871 CDB[0] = cmd; 2872 timeout = 10; 2873 break; 2874 2875 case RELEASE: 2876 cmdLen = 6; 2877 dir = MPI_SCSIIO_CONTROL_READ; 2878 CDB[0] = cmd; 2879 timeout = 10; 2880 break; 2881 2882 case SYNCHRONIZE_CACHE: 2883 cmdLen = 10; 2884 dir = MPI_SCSIIO_CONTROL_READ; 2885 CDB[0] = cmd; 2886 // CDB[1] = 0x02; /* set immediate bit */ 2887 timeout = 10; 2888 break; 2889 2890 default: 2891 /* Error Case */ 2892 ret = -EFAULT; 2893 goto out; 2894 } 2895 2896 /* Get and Populate a free Frame 2897 * MsgContext set in mpt_get_msg_frame call 2898 */ 2899 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) { 2900 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n", 2901 ioc->name, __func__)); 2902 ret = MPT_SCANDV_BUSY; 2903 goto out; 2904 } 2905 2906 pScsiReq = (SCSIIORequest_t *) mf; 2907 2908 /* Get the request index */ 2909 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 2910 ADD_INDEX_LOG(my_idx); /* for debug */ 2911 2912 if (io->flags & MPT_ICFLAG_PHYS_DISK) { 2913 pScsiReq->TargetID = io->physDiskNum; 2914 pScsiReq->Bus = 0; 2915 pScsiReq->ChainOffset = 0; 2916 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH; 2917 } else { 2918 pScsiReq->TargetID = io->id; 2919 pScsiReq->Bus = io->channel; 2920 pScsiReq->ChainOffset = 0; 2921 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST; 2922 } 2923 2924 pScsiReq->CDBLength = cmdLen; 2925 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE; 2926 2927 pScsiReq->Reserved = 0; 2928 2929 pScsiReq->MsgFlags = mpt_msg_flags(ioc); 2930 /* MsgContext set in mpt_get_msg_fram call */ 2931 2932 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN); 2933 2934 if (io->flags & MPT_ICFLAG_TAGGED_CMD) 2935 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ); 2936 else 2937 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED); 2938 2939 if (cmd == REQUEST_SENSE) { 2940 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED); 2941 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2942 "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd)); 2943 } 2944 2945 for (ii = 0; ii < 16; ii++) 2946 pScsiReq->CDB[ii] = CDB[ii]; 2947 2948 pScsiReq->DataLength = cpu_to_le32(io->size); 2949 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma 2950 + (my_idx * MPT_SENSE_BUFFER_ALLOC)); 2951 2952 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2953 "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%llu\n", 2954 ioc->name, __func__, cmd, io->channel, io->id, io->lun)); 2955 2956 if (dir == MPI_SCSIIO_CONTROL_READ) 2957 ioc->add_sge((char *) &pScsiReq->SGL, 2958 MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma); 2959 else 2960 ioc->add_sge((char *) &pScsiReq->SGL, 2961 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma); 2962 2963 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status) 2964 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf); 2965 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done, 2966 timeout*HZ); 2967 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) { 2968 ret = MPT_SCANDV_DID_RESET; 2969 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2970 "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__, 2971 cmd)); 2972 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) { 2973 mpt_free_msg_frame(ioc, mf); 2974 goto out; 2975 } 2976 if (!timeleft) { 2977 printk(MYIOC_s_WARN_FMT 2978 "Issuing Reset from %s!! doorbell=0x%08xh" 2979 " cmd=0x%02x\n", 2980 ioc->name, __func__, mpt_GetIocState(ioc, 0), 2981 cmd); 2982 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); 2983 mpt_free_msg_frame(ioc, mf); 2984 } 2985 goto out; 2986 } 2987 2988 ret = ioc->internal_cmds.completion_code; 2989 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n", 2990 ioc->name, __func__, ret)); 2991 2992 out: 2993 CLEAR_MGMT_STATUS(ioc->internal_cmds.status) 2994 mutex_unlock(&ioc->internal_cmds.mutex); 2995 return ret; 2996 } 2997 2998 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2999 /** 3000 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks. 3001 * @hd: Pointer to a SCSI HOST structure 3002 * @vdevice: virtual target device 3003 * 3004 * Uses the ISR, but with special processing. 3005 * MUST be single-threaded. 3006 * 3007 */ 3008 static void 3009 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice) 3010 { 3011 INTERNAL_CMD iocmd; 3012 3013 /* Ignore hidden raid components, this is handled when the command 3014 * is sent to the volume 3015 */ 3016 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) 3017 return; 3018 3019 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted || 3020 !vdevice->configured_lun) 3021 return; 3022 3023 /* Following parameters will not change 3024 * in this routine. 3025 */ 3026 iocmd.cmd = SYNCHRONIZE_CACHE; 3027 iocmd.flags = 0; 3028 iocmd.physDiskNum = -1; 3029 iocmd.data = NULL; 3030 iocmd.data_dma = -1; 3031 iocmd.size = 0; 3032 iocmd.rsvd = iocmd.rsvd2 = 0; 3033 iocmd.channel = vdevice->vtarget->channel; 3034 iocmd.id = vdevice->vtarget->id; 3035 iocmd.lun = vdevice->lun; 3036 3037 mptscsih_do_cmd(hd, &iocmd); 3038 } 3039 3040 static ssize_t 3041 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr, 3042 char *buf) 3043 { 3044 struct Scsi_Host *host = class_to_shost(dev); 3045 MPT_SCSI_HOST *hd = shost_priv(host); 3046 MPT_ADAPTER *ioc = hd->ioc; 3047 3048 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", 3049 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, 3050 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, 3051 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, 3052 ioc->facts.FWVersion.Word & 0x000000FF); 3053 } 3054 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL); 3055 3056 static ssize_t 3057 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr, 3058 char *buf) 3059 { 3060 struct Scsi_Host *host = class_to_shost(dev); 3061 MPT_SCSI_HOST *hd = shost_priv(host); 3062 MPT_ADAPTER *ioc = hd->ioc; 3063 3064 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 3065 (ioc->biosVersion & 0xFF000000) >> 24, 3066 (ioc->biosVersion & 0x00FF0000) >> 16, 3067 (ioc->biosVersion & 0x0000FF00) >> 8, 3068 ioc->biosVersion & 0x000000FF); 3069 } 3070 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL); 3071 3072 static ssize_t 3073 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr, 3074 char *buf) 3075 { 3076 struct Scsi_Host *host = class_to_shost(dev); 3077 MPT_SCSI_HOST *hd = shost_priv(host); 3078 MPT_ADAPTER *ioc = hd->ioc; 3079 3080 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion); 3081 } 3082 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL); 3083 3084 static ssize_t 3085 mptscsih_version_product_show(struct device *dev, 3086 struct device_attribute *attr, 3087 char *buf) 3088 { 3089 struct Scsi_Host *host = class_to_shost(dev); 3090 MPT_SCSI_HOST *hd = shost_priv(host); 3091 MPT_ADAPTER *ioc = hd->ioc; 3092 3093 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name); 3094 } 3095 static DEVICE_ATTR(version_product, S_IRUGO, 3096 mptscsih_version_product_show, NULL); 3097 3098 static ssize_t 3099 mptscsih_version_nvdata_persistent_show(struct device *dev, 3100 struct device_attribute *attr, 3101 char *buf) 3102 { 3103 struct Scsi_Host *host = class_to_shost(dev); 3104 MPT_SCSI_HOST *hd = shost_priv(host); 3105 MPT_ADAPTER *ioc = hd->ioc; 3106 3107 return snprintf(buf, PAGE_SIZE, "%02xh\n", 3108 ioc->nvdata_version_persistent); 3109 } 3110 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO, 3111 mptscsih_version_nvdata_persistent_show, NULL); 3112 3113 static ssize_t 3114 mptscsih_version_nvdata_default_show(struct device *dev, 3115 struct device_attribute *attr, char *buf) 3116 { 3117 struct Scsi_Host *host = class_to_shost(dev); 3118 MPT_SCSI_HOST *hd = shost_priv(host); 3119 MPT_ADAPTER *ioc = hd->ioc; 3120 3121 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default); 3122 } 3123 static DEVICE_ATTR(version_nvdata_default, S_IRUGO, 3124 mptscsih_version_nvdata_default_show, NULL); 3125 3126 static ssize_t 3127 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr, 3128 char *buf) 3129 { 3130 struct Scsi_Host *host = class_to_shost(dev); 3131 MPT_SCSI_HOST *hd = shost_priv(host); 3132 MPT_ADAPTER *ioc = hd->ioc; 3133 3134 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name); 3135 } 3136 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL); 3137 3138 static ssize_t 3139 mptscsih_board_assembly_show(struct device *dev, 3140 struct device_attribute *attr, char *buf) 3141 { 3142 struct Scsi_Host *host = class_to_shost(dev); 3143 MPT_SCSI_HOST *hd = shost_priv(host); 3144 MPT_ADAPTER *ioc = hd->ioc; 3145 3146 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly); 3147 } 3148 static DEVICE_ATTR(board_assembly, S_IRUGO, 3149 mptscsih_board_assembly_show, NULL); 3150 3151 static ssize_t 3152 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr, 3153 char *buf) 3154 { 3155 struct Scsi_Host *host = class_to_shost(dev); 3156 MPT_SCSI_HOST *hd = shost_priv(host); 3157 MPT_ADAPTER *ioc = hd->ioc; 3158 3159 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer); 3160 } 3161 static DEVICE_ATTR(board_tracer, S_IRUGO, 3162 mptscsih_board_tracer_show, NULL); 3163 3164 static ssize_t 3165 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr, 3166 char *buf) 3167 { 3168 struct Scsi_Host *host = class_to_shost(dev); 3169 MPT_SCSI_HOST *hd = shost_priv(host); 3170 MPT_ADAPTER *ioc = hd->ioc; 3171 3172 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay); 3173 } 3174 static DEVICE_ATTR(io_delay, S_IRUGO, 3175 mptscsih_io_delay_show, NULL); 3176 3177 static ssize_t 3178 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr, 3179 char *buf) 3180 { 3181 struct Scsi_Host *host = class_to_shost(dev); 3182 MPT_SCSI_HOST *hd = shost_priv(host); 3183 MPT_ADAPTER *ioc = hd->ioc; 3184 3185 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay); 3186 } 3187 static DEVICE_ATTR(device_delay, S_IRUGO, 3188 mptscsih_device_delay_show, NULL); 3189 3190 static ssize_t 3191 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr, 3192 char *buf) 3193 { 3194 struct Scsi_Host *host = class_to_shost(dev); 3195 MPT_SCSI_HOST *hd = shost_priv(host); 3196 MPT_ADAPTER *ioc = hd->ioc; 3197 3198 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level); 3199 } 3200 static ssize_t 3201 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr, 3202 const char *buf, size_t count) 3203 { 3204 struct Scsi_Host *host = class_to_shost(dev); 3205 MPT_SCSI_HOST *hd = shost_priv(host); 3206 MPT_ADAPTER *ioc = hd->ioc; 3207 int val = 0; 3208 3209 if (sscanf(buf, "%x", &val) != 1) 3210 return -EINVAL; 3211 3212 ioc->debug_level = val; 3213 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n", 3214 ioc->name, ioc->debug_level); 3215 return strlen(buf); 3216 } 3217 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR, 3218 mptscsih_debug_level_show, mptscsih_debug_level_store); 3219 3220 static struct attribute *mptscsih_host_attrs[] = { 3221 &dev_attr_version_fw.attr, 3222 &dev_attr_version_bios.attr, 3223 &dev_attr_version_mpi.attr, 3224 &dev_attr_version_product.attr, 3225 &dev_attr_version_nvdata_persistent.attr, 3226 &dev_attr_version_nvdata_default.attr, 3227 &dev_attr_board_name.attr, 3228 &dev_attr_board_assembly.attr, 3229 &dev_attr_board_tracer.attr, 3230 &dev_attr_io_delay.attr, 3231 &dev_attr_device_delay.attr, 3232 &dev_attr_debug_level.attr, 3233 NULL, 3234 }; 3235 3236 static const struct attribute_group mptscsih_host_attr_group = { 3237 .attrs = mptscsih_host_attrs 3238 }; 3239 3240 const struct attribute_group *mptscsih_host_attr_groups[] = { 3241 &mptscsih_host_attr_group, 3242 NULL 3243 }; 3244 EXPORT_SYMBOL(mptscsih_host_attr_groups); 3245 3246 EXPORT_SYMBOL(mptscsih_remove); 3247 EXPORT_SYMBOL(mptscsih_shutdown); 3248 #ifdef CONFIG_PM 3249 EXPORT_SYMBOL(mptscsih_suspend); 3250 EXPORT_SYMBOL(mptscsih_resume); 3251 #endif 3252 EXPORT_SYMBOL(mptscsih_show_info); 3253 EXPORT_SYMBOL(mptscsih_info); 3254 EXPORT_SYMBOL(mptscsih_qcmd); 3255 EXPORT_SYMBOL(mptscsih_slave_destroy); 3256 EXPORT_SYMBOL(mptscsih_slave_configure); 3257 EXPORT_SYMBOL(mptscsih_abort); 3258 EXPORT_SYMBOL(mptscsih_dev_reset); 3259 EXPORT_SYMBOL(mptscsih_bus_reset); 3260 EXPORT_SYMBOL(mptscsih_host_reset); 3261 EXPORT_SYMBOL(mptscsih_bios_param); 3262 EXPORT_SYMBOL(mptscsih_io_done); 3263 EXPORT_SYMBOL(mptscsih_taskmgmt_complete); 3264 EXPORT_SYMBOL(mptscsih_scandv_complete); 3265 EXPORT_SYMBOL(mptscsih_event_process); 3266 EXPORT_SYMBOL(mptscsih_ioc_reset); 3267 EXPORT_SYMBOL(mptscsih_change_queue_depth); 3268 3269 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 3270