1 /* 2 * linux/drivers/message/fusion/mptscsih.c 3 * For use with LSI PCI chip/adapter(s) 4 * running LSI Fusion MPT (Message Passing Technology) firmware. 5 * 6 * Copyright (c) 1999-2008 LSI Corporation 7 * (mailto:DL-MPTFusionLinux@lsi.com) 8 * 9 */ 10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 11 /* 12 This program is free software; you can redistribute it and/or modify 13 it under the terms of the GNU General Public License as published by 14 the Free Software Foundation; version 2 of the License. 15 16 This program is distributed in the hope that it will be useful, 17 but WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 GNU General Public License for more details. 20 21 NO WARRANTY 22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR 23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT 24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, 25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is 26 solely responsible for determining the appropriateness of using and 27 distributing the Program and assumes all risks associated with its 28 exercise of rights under this Agreement, including but not limited to 29 the risks and costs of program errors, damage to or loss of data, 30 programs or equipment, and unavailability or interruption of operations. 31 32 DISCLAIMER OF LIABILITY 33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY 34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND 36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED 39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES 40 41 You should have received a copy of the GNU General Public License 42 along with this program; if not, write to the Free Software 43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 44 */ 45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 46 47 #include <linux/module.h> 48 #include <linux/kernel.h> 49 #include <linux/slab.h> 50 #include <linux/init.h> 51 #include <linux/errno.h> 52 #include <linux/kdev_t.h> 53 #include <linux/blkdev.h> 54 #include <linux/delay.h> /* for mdelay */ 55 #include <linux/interrupt.h> /* needed for in_interrupt() proto */ 56 #include <linux/reboot.h> /* notifier code */ 57 #include <linux/workqueue.h> 58 59 #include <scsi/scsi.h> 60 #include <scsi/scsi_cmnd.h> 61 #include <scsi/scsi_device.h> 62 #include <scsi/scsi_host.h> 63 #include <scsi/scsi_tcq.h> 64 #include <scsi/scsi_dbg.h> 65 66 #include "mptbase.h" 67 #include "mptscsih.h" 68 #include "lsi/mpi_log_sas.h" 69 70 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 71 #define my_NAME "Fusion MPT SCSI Host driver" 72 #define my_VERSION MPT_LINUX_VERSION_COMMON 73 #define MYNAM "mptscsih" 74 75 MODULE_AUTHOR(MODULEAUTHOR); 76 MODULE_DESCRIPTION(my_NAME); 77 MODULE_LICENSE("GPL"); 78 MODULE_VERSION(my_VERSION); 79 80 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 81 /* 82 * Other private/forward protos... 83 */ 84 struct scsi_cmnd *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i); 85 static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i); 86 static void mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd); 87 static int SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd); 88 int mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r); 89 static void mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq); 90 int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r); 91 92 static int mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt, 93 SCSIIORequest_t *pReq, int req_idx); 94 static void mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx); 95 static void mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply); 96 97 int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, 98 int lun, int ctx2abort, ulong timeout); 99 100 int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset); 101 int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply); 102 103 void 104 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code); 105 static int mptscsih_get_completion_code(MPT_ADAPTER *ioc, 106 MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply); 107 int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r); 108 static int mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *iocmd); 109 static void mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice); 110 111 static int 112 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type, 113 SCSITaskMgmtReply_t *pScsiTmReply); 114 void mptscsih_remove(struct pci_dev *); 115 void mptscsih_shutdown(struct pci_dev *); 116 #ifdef CONFIG_PM 117 int mptscsih_suspend(struct pci_dev *pdev, pm_message_t state); 118 int mptscsih_resume(struct pci_dev *pdev); 119 #endif 120 121 #define SNS_LEN(scp) SCSI_SENSE_BUFFERSIZE 122 123 124 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 125 /* 126 * mptscsih_getFreeChainBuffer - Function to get a free chain 127 * from the MPT_SCSI_HOST FreeChainQ. 128 * @ioc: Pointer to MPT_ADAPTER structure 129 * @req_idx: Index of the SCSI IO request frame. (output) 130 * 131 * return SUCCESS or FAILED 132 */ 133 static inline int 134 mptscsih_getFreeChainBuffer(MPT_ADAPTER *ioc, int *retIndex) 135 { 136 MPT_FRAME_HDR *chainBuf; 137 unsigned long flags; 138 int rc; 139 int chain_idx; 140 141 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "getFreeChainBuffer called\n", 142 ioc->name)); 143 spin_lock_irqsave(&ioc->FreeQlock, flags); 144 if (!list_empty(&ioc->FreeChainQ)) { 145 int offset; 146 147 chainBuf = list_entry(ioc->FreeChainQ.next, MPT_FRAME_HDR, 148 u.frame.linkage.list); 149 list_del(&chainBuf->u.frame.linkage.list); 150 offset = (u8 *)chainBuf - (u8 *)ioc->ChainBuffer; 151 chain_idx = offset / ioc->req_sz; 152 rc = SUCCESS; 153 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT 154 "getFreeChainBuffer chainBuf=%p ChainBuffer=%p offset=%d chain_idx=%d\n", 155 ioc->name, chainBuf, ioc->ChainBuffer, offset, chain_idx)); 156 } else { 157 rc = FAILED; 158 chain_idx = MPT_HOST_NO_CHAIN; 159 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "getFreeChainBuffer failed\n", 160 ioc->name)); 161 } 162 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 163 164 *retIndex = chain_idx; 165 return rc; 166 } /* mptscsih_getFreeChainBuffer() */ 167 168 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 169 /* 170 * mptscsih_AddSGE - Add a SGE (plus chain buffers) to the 171 * SCSIIORequest_t Message Frame. 172 * @ioc: Pointer to MPT_ADAPTER structure 173 * @SCpnt: Pointer to scsi_cmnd structure 174 * @pReq: Pointer to SCSIIORequest_t structure 175 * 176 * Returns ... 177 */ 178 static int 179 mptscsih_AddSGE(MPT_ADAPTER *ioc, struct scsi_cmnd *SCpnt, 180 SCSIIORequest_t *pReq, int req_idx) 181 { 182 char *psge; 183 char *chainSge; 184 struct scatterlist *sg; 185 int frm_sz; 186 int sges_left, sg_done; 187 int chain_idx = MPT_HOST_NO_CHAIN; 188 int sgeOffset; 189 int numSgeSlots, numSgeThisFrame; 190 u32 sgflags, sgdir, thisxfer = 0; 191 int chain_dma_off = 0; 192 int newIndex; 193 int ii; 194 dma_addr_t v2; 195 u32 RequestNB; 196 197 sgdir = le32_to_cpu(pReq->Control) & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK; 198 if (sgdir == MPI_SCSIIO_CONTROL_WRITE) { 199 sgdir = MPT_TRANSFER_HOST_TO_IOC; 200 } else { 201 sgdir = MPT_TRANSFER_IOC_TO_HOST; 202 } 203 204 psge = (char *) &pReq->SGL; 205 frm_sz = ioc->req_sz; 206 207 /* Map the data portion, if any. 208 * sges_left = 0 if no data transfer. 209 */ 210 sges_left = scsi_dma_map(SCpnt); 211 if (sges_left < 0) 212 return FAILED; 213 214 /* Handle the SG case. 215 */ 216 sg = scsi_sglist(SCpnt); 217 sg_done = 0; 218 sgeOffset = sizeof(SCSIIORequest_t) - sizeof(SGE_IO_UNION); 219 chainSge = NULL; 220 221 /* Prior to entering this loop - the following must be set 222 * current MF: sgeOffset (bytes) 223 * chainSge (Null if original MF is not a chain buffer) 224 * sg_done (num SGE done for this MF) 225 */ 226 227 nextSGEset: 228 numSgeSlots = ((frm_sz - sgeOffset) / ioc->SGE_size); 229 numSgeThisFrame = (sges_left < numSgeSlots) ? sges_left : numSgeSlots; 230 231 sgflags = MPT_SGE_FLAGS_SIMPLE_ELEMENT | sgdir; 232 233 /* Get first (num - 1) SG elements 234 * Skip any SG entries with a length of 0 235 * NOTE: at finish, sg and psge pointed to NEXT data/location positions 236 */ 237 for (ii=0; ii < (numSgeThisFrame-1); ii++) { 238 thisxfer = sg_dma_len(sg); 239 if (thisxfer == 0) { 240 /* Get next SG element from the OS */ 241 sg = sg_next(sg); 242 sg_done++; 243 continue; 244 } 245 246 v2 = sg_dma_address(sg); 247 ioc->add_sge(psge, sgflags | thisxfer, v2); 248 249 /* Get next SG element from the OS */ 250 sg = sg_next(sg); 251 psge += ioc->SGE_size; 252 sgeOffset += ioc->SGE_size; 253 sg_done++; 254 } 255 256 if (numSgeThisFrame == sges_left) { 257 /* Add last element, end of buffer and end of list flags. 258 */ 259 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT | 260 MPT_SGE_FLAGS_END_OF_BUFFER | 261 MPT_SGE_FLAGS_END_OF_LIST; 262 263 /* Add last SGE and set termination flags. 264 * Note: Last SGE may have a length of 0 - which should be ok. 265 */ 266 thisxfer = sg_dma_len(sg); 267 268 v2 = sg_dma_address(sg); 269 ioc->add_sge(psge, sgflags | thisxfer, v2); 270 sgeOffset += ioc->SGE_size; 271 sg_done++; 272 273 if (chainSge) { 274 /* The current buffer is a chain buffer, 275 * but there is not another one. 276 * Update the chain element 277 * Offset and Length fields. 278 */ 279 ioc->add_chain((char *)chainSge, 0, sgeOffset, 280 ioc->ChainBufferDMA + chain_dma_off); 281 } else { 282 /* The current buffer is the original MF 283 * and there is no Chain buffer. 284 */ 285 pReq->ChainOffset = 0; 286 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03; 287 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT 288 "Single Buffer RequestNB=%x, sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset)); 289 ioc->RequestNB[req_idx] = RequestNB; 290 } 291 } else { 292 /* At least one chain buffer is needed. 293 * Complete the first MF 294 * - last SGE element, set the LastElement bit 295 * - set ChainOffset (words) for orig MF 296 * (OR finish previous MF chain buffer) 297 * - update MFStructPtr ChainIndex 298 * - Populate chain element 299 * Also 300 * Loop until done. 301 */ 302 303 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SG: Chain Required! sg done %d\n", 304 ioc->name, sg_done)); 305 306 /* Set LAST_ELEMENT flag for last non-chain element 307 * in the buffer. Since psge points at the NEXT 308 * SGE element, go back one SGE element, update the flags 309 * and reset the pointer. (Note: sgflags & thisxfer are already 310 * set properly). 311 */ 312 if (sg_done) { 313 u32 *ptmp = (u32 *) (psge - ioc->SGE_size); 314 sgflags = le32_to_cpu(*ptmp); 315 sgflags |= MPT_SGE_FLAGS_LAST_ELEMENT; 316 *ptmp = cpu_to_le32(sgflags); 317 } 318 319 if (chainSge) { 320 /* The current buffer is a chain buffer. 321 * chainSge points to the previous Chain Element. 322 * Update its chain element Offset and Length (must 323 * include chain element size) fields. 324 * Old chain element is now complete. 325 */ 326 u8 nextChain = (u8) (sgeOffset >> 2); 327 sgeOffset += ioc->SGE_size; 328 ioc->add_chain((char *)chainSge, nextChain, sgeOffset, 329 ioc->ChainBufferDMA + chain_dma_off); 330 } else { 331 /* The original MF buffer requires a chain buffer - 332 * set the offset. 333 * Last element in this MF is a chain element. 334 */ 335 pReq->ChainOffset = (u8) (sgeOffset >> 2); 336 RequestNB = (((sgeOffset - 1) >> ioc->NBShiftFactor) + 1) & 0x03; 337 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Chain Buffer Needed, RequestNB=%x sgeOffset=%d\n", ioc->name, RequestNB, sgeOffset)); 338 ioc->RequestNB[req_idx] = RequestNB; 339 } 340 341 sges_left -= sg_done; 342 343 344 /* NOTE: psge points to the beginning of the chain element 345 * in current buffer. Get a chain buffer. 346 */ 347 if ((mptscsih_getFreeChainBuffer(ioc, &newIndex)) == FAILED) { 348 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT 349 "getFreeChainBuffer FAILED SCSI cmd=%02x (%p)\n", 350 ioc->name, pReq->CDB[0], SCpnt)); 351 return FAILED; 352 } 353 354 /* Update the tracking arrays. 355 * If chainSge == NULL, update ReqToChain, else ChainToChain 356 */ 357 if (chainSge) { 358 ioc->ChainToChain[chain_idx] = newIndex; 359 } else { 360 ioc->ReqToChain[req_idx] = newIndex; 361 } 362 chain_idx = newIndex; 363 chain_dma_off = ioc->req_sz * chain_idx; 364 365 /* Populate the chainSGE for the current buffer. 366 * - Set chain buffer pointer to psge and fill 367 * out the Address and Flags fields. 368 */ 369 chainSge = (char *) psge; 370 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Current buff @ %p (index 0x%x)", 371 ioc->name, psge, req_idx)); 372 373 /* Start the SGE for the next buffer 374 */ 375 psge = (char *) (ioc->ChainBuffer + chain_dma_off); 376 sgeOffset = 0; 377 sg_done = 0; 378 379 dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT " Chain buff @ %p (index 0x%x)\n", 380 ioc->name, psge, chain_idx)); 381 382 /* Start the SGE for the next buffer 383 */ 384 385 goto nextSGEset; 386 } 387 388 return SUCCESS; 389 } /* mptscsih_AddSGE() */ 390 391 static void 392 mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget, 393 U32 SlotStatus) 394 { 395 MPT_FRAME_HDR *mf; 396 SEPRequest_t *SEPMsg; 397 398 if (ioc->bus_type != SAS) 399 return; 400 401 /* Not supported for hidden raid components 402 */ 403 if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) 404 return; 405 406 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) { 407 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n", 408 ioc->name,__func__)); 409 return; 410 } 411 412 SEPMsg = (SEPRequest_t *)mf; 413 SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR; 414 SEPMsg->Bus = vtarget->channel; 415 SEPMsg->TargetID = vtarget->id; 416 SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS; 417 SEPMsg->SlotStatus = SlotStatus; 418 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT 419 "Sending SEP cmd=%x channel=%d id=%d\n", 420 ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID)); 421 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf); 422 } 423 424 #ifdef CONFIG_FUSION_LOGGING 425 /** 426 * mptscsih_info_scsiio - debug print info on reply frame 427 * @ioc: Pointer to MPT_ADAPTER structure 428 * @sc: original scsi cmnd pointer 429 * @pScsiReply: Pointer to MPT reply frame 430 * 431 * MPT_DEBUG_REPLY needs to be enabled to obtain this info 432 * 433 * Refer to lsi/mpi.h. 434 **/ 435 static void 436 mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply) 437 { 438 char *desc = NULL; 439 char *desc1 = NULL; 440 u16 ioc_status; 441 u8 skey, asc, ascq; 442 443 ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK; 444 445 switch (ioc_status) { 446 447 case MPI_IOCSTATUS_SUCCESS: 448 desc = "success"; 449 break; 450 case MPI_IOCSTATUS_SCSI_INVALID_BUS: 451 desc = "invalid bus"; 452 break; 453 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID: 454 desc = "invalid target_id"; 455 break; 456 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: 457 desc = "device not there"; 458 break; 459 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: 460 desc = "data overrun"; 461 break; 462 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: 463 desc = "data underrun"; 464 break; 465 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: 466 desc = "I/O data error"; 467 break; 468 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: 469 desc = "protocol error"; 470 break; 471 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: 472 desc = "task terminated"; 473 break; 474 case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: 475 desc = "residual mismatch"; 476 break; 477 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED: 478 desc = "task management failed"; 479 break; 480 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: 481 desc = "IOC terminated"; 482 break; 483 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: 484 desc = "ext terminated"; 485 break; 486 default: 487 desc = ""; 488 break; 489 } 490 491 switch (pScsiReply->SCSIStatus) 492 { 493 494 case MPI_SCSI_STATUS_SUCCESS: 495 desc1 = "success"; 496 break; 497 case MPI_SCSI_STATUS_CHECK_CONDITION: 498 desc1 = "check condition"; 499 break; 500 case MPI_SCSI_STATUS_CONDITION_MET: 501 desc1 = "condition met"; 502 break; 503 case MPI_SCSI_STATUS_BUSY: 504 desc1 = "busy"; 505 break; 506 case MPI_SCSI_STATUS_INTERMEDIATE: 507 desc1 = "intermediate"; 508 break; 509 case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET: 510 desc1 = "intermediate condmet"; 511 break; 512 case MPI_SCSI_STATUS_RESERVATION_CONFLICT: 513 desc1 = "reservation conflict"; 514 break; 515 case MPI_SCSI_STATUS_COMMAND_TERMINATED: 516 desc1 = "command terminated"; 517 break; 518 case MPI_SCSI_STATUS_TASK_SET_FULL: 519 desc1 = "task set full"; 520 break; 521 case MPI_SCSI_STATUS_ACA_ACTIVE: 522 desc1 = "aca active"; 523 break; 524 case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT: 525 desc1 = "fcpext device logged out"; 526 break; 527 case MPI_SCSI_STATUS_FCPEXT_NO_LINK: 528 desc1 = "fcpext no link"; 529 break; 530 case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED: 531 desc1 = "fcpext unassigned"; 532 break; 533 default: 534 desc1 = ""; 535 break; 536 } 537 538 scsi_print_command(sc); 539 printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d, lun = %d\n", 540 ioc->name, pScsiReply->Bus, pScsiReply->TargetID, sc->device->lun); 541 printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, " 542 "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow, 543 scsi_get_resid(sc)); 544 printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, " 545 "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag), 546 le32_to_cpu(pScsiReply->TransferCount), sc->result); 547 548 printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), " 549 "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n", 550 ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus, 551 pScsiReply->SCSIState); 552 553 if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) { 554 skey = sc->sense_buffer[2] & 0x0F; 555 asc = sc->sense_buffer[12]; 556 ascq = sc->sense_buffer[13]; 557 558 printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: " 559 "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq); 560 } 561 562 /* 563 * Look for + dump FCP ResponseInfo[]! 564 */ 565 if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID && 566 pScsiReply->ResponseInfo) 567 printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n", 568 ioc->name, le32_to_cpu(pScsiReply->ResponseInfo)); 569 } 570 #endif 571 572 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 573 /* 574 * mptscsih_io_done - Main SCSI IO callback routine registered to 575 * Fusion MPT (base) driver 576 * @ioc: Pointer to MPT_ADAPTER structure 577 * @mf: Pointer to original MPT request frame 578 * @r: Pointer to MPT reply frame (NULL if TurboReply) 579 * 580 * This routine is called from mpt.c::mpt_interrupt() at the completion 581 * of any SCSI IO request. 582 * This routine is registered with the Fusion MPT (base) driver at driver 583 * load/init time via the mpt_register() API call. 584 * 585 * Returns 1 indicating alloc'd request frame ptr should be freed. 586 */ 587 int 588 mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr) 589 { 590 struct scsi_cmnd *sc; 591 MPT_SCSI_HOST *hd; 592 SCSIIORequest_t *pScsiReq; 593 SCSIIOReply_t *pScsiReply; 594 u16 req_idx, req_idx_MR; 595 VirtDevice *vdevice; 596 VirtTarget *vtarget; 597 598 hd = shost_priv(ioc->sh); 599 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 600 req_idx_MR = (mr != NULL) ? 601 le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx; 602 603 /* Special case, where already freed message frame is received from 604 * Firmware. It happens with Resetting IOC. 605 * Return immediately. Do not care 606 */ 607 if ((req_idx != req_idx_MR) || 608 (le32_to_cpu(mf->u.frame.linkage.arg1) == 0xdeadbeaf)) 609 return 0; 610 611 sc = mptscsih_getclear_scsi_lookup(ioc, req_idx); 612 if (sc == NULL) { 613 MPIHeader_t *hdr = (MPIHeader_t *)mf; 614 615 /* Remark: writeSDP1 will use the ScsiDoneCtx 616 * If a SCSI I/O cmd, device disabled by OS and 617 * completion done. Cannot touch sc struct. Just free mem. 618 */ 619 if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST) 620 printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n", 621 ioc->name); 622 623 mptscsih_freeChainBuffers(ioc, req_idx); 624 return 1; 625 } 626 627 if ((unsigned char *)mf != sc->host_scribble) { 628 mptscsih_freeChainBuffers(ioc, req_idx); 629 return 1; 630 } 631 632 if (ioc->bus_type == SAS) { 633 VirtDevice *vdevice = sc->device->hostdata; 634 635 if (!vdevice || !vdevice->vtarget || 636 vdevice->vtarget->deleted) { 637 sc->result = DID_NO_CONNECT << 16; 638 goto out; 639 } 640 } 641 642 sc->host_scribble = NULL; 643 sc->result = DID_OK << 16; /* Set default reply as OK */ 644 pScsiReq = (SCSIIORequest_t *) mf; 645 pScsiReply = (SCSIIOReply_t *) mr; 646 647 if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){ 648 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT 649 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n", 650 ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag)); 651 }else{ 652 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT 653 "ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n", 654 ioc->name, mf, mr, sc, req_idx)); 655 } 656 657 if (pScsiReply == NULL) { 658 /* special context reply handling */ 659 ; 660 } else { 661 u32 xfer_cnt; 662 u16 status; 663 u8 scsi_state, scsi_status; 664 u32 log_info; 665 666 status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK; 667 668 scsi_state = pScsiReply->SCSIState; 669 scsi_status = pScsiReply->SCSIStatus; 670 xfer_cnt = le32_to_cpu(pScsiReply->TransferCount); 671 scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt); 672 log_info = le32_to_cpu(pScsiReply->IOCLogInfo); 673 674 /* 675 * if we get a data underrun indication, yet no data was 676 * transferred and the SCSI status indicates that the 677 * command was never started, change the data underrun 678 * to success 679 */ 680 if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 && 681 (scsi_status == MPI_SCSI_STATUS_BUSY || 682 scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT || 683 scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) { 684 status = MPI_IOCSTATUS_SUCCESS; 685 } 686 687 if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) 688 mptscsih_copy_sense_data(sc, hd, mf, pScsiReply); 689 690 /* 691 * Look for + dump FCP ResponseInfo[]! 692 */ 693 if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID && 694 pScsiReply->ResponseInfo) { 695 printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%d] " 696 "FCP_ResponseInfo=%08xh\n", ioc->name, 697 sc->device->host->host_no, sc->device->channel, 698 sc->device->id, sc->device->lun, 699 le32_to_cpu(pScsiReply->ResponseInfo)); 700 } 701 702 switch(status) { 703 case MPI_IOCSTATUS_BUSY: /* 0x0002 */ 704 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES: /* 0x0006 */ 705 /* CHECKME! 706 * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry) 707 * But not: DID_BUS_BUSY lest one risk 708 * killing interrupt handler:-( 709 */ 710 sc->result = SAM_STAT_BUSY; 711 break; 712 713 case MPI_IOCSTATUS_SCSI_INVALID_BUS: /* 0x0041 */ 714 case MPI_IOCSTATUS_SCSI_INVALID_TARGETID: /* 0x0042 */ 715 sc->result = DID_BAD_TARGET << 16; 716 break; 717 718 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */ 719 /* Spoof to SCSI Selection Timeout! */ 720 if (ioc->bus_type != FC) 721 sc->result = DID_NO_CONNECT << 16; 722 /* else fibre, just stall until rescan event */ 723 else 724 sc->result = DID_REQUEUE << 16; 725 726 if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF) 727 hd->sel_timeout[pScsiReq->TargetID]++; 728 729 vdevice = sc->device->hostdata; 730 if (!vdevice) 731 break; 732 vtarget = vdevice->vtarget; 733 if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) { 734 mptscsih_issue_sep_command(ioc, vtarget, 735 MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED); 736 vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON; 737 } 738 break; 739 740 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */ 741 if ( ioc->bus_type == SAS ) { 742 u16 ioc_status = 743 le16_to_cpu(pScsiReply->IOCStatus); 744 if ((ioc_status & 745 MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) 746 && 747 ((log_info & SAS_LOGINFO_MASK) == 748 SAS_LOGINFO_NEXUS_LOSS)) { 749 VirtDevice *vdevice = 750 sc->device->hostdata; 751 752 /* flag the device as being in 753 * device removal delay so we can 754 * notify the midlayer to hold off 755 * on timeout eh */ 756 if (vdevice && vdevice-> 757 vtarget && 758 vdevice->vtarget-> 759 raidVolume) 760 printk(KERN_INFO 761 "Skipping Raid Volume" 762 "for inDMD\n"); 763 else if (vdevice && 764 vdevice->vtarget) 765 vdevice->vtarget-> 766 inDMD = 1; 767 768 sc->result = 769 (DID_TRANSPORT_DISRUPTED 770 << 16); 771 break; 772 } 773 } else if (ioc->bus_type == FC) { 774 /* 775 * The FC IOC may kill a request for variety of 776 * reasons, some of which may be recovered by a 777 * retry, some which are unlikely to be 778 * recovered. Return DID_ERROR instead of 779 * DID_RESET to permit retry of the command, 780 * just not an infinite number of them 781 */ 782 sc->result = DID_ERROR << 16; 783 break; 784 } 785 786 /* 787 * Allow non-SAS & non-NEXUS_LOSS to drop into below code 788 */ 789 790 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */ 791 /* Linux handles an unsolicited DID_RESET better 792 * than an unsolicited DID_ABORT. 793 */ 794 sc->result = DID_RESET << 16; 795 796 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 || 831 pScsiReq->CDB[0] == READ_10 || 832 pScsiReq->CDB[0] == READ_12 || 833 pScsiReq->CDB[0] == READ_16 || 834 pScsiReq->CDB[0] == VERIFY || 835 pScsiReq->CDB[0] == VERIFY_16) { 836 if (scsi_bufflen(sc) != 837 xfer_cnt) { 838 sc->result = 839 DID_SOFT_ERROR << 16; 840 printk(KERN_WARNING "Errata" 841 "on LSI53C1030 occurred." 842 "sc->req_bufflen=0x%02x," 843 "xfer_cnt=0x%02x\n", 844 scsi_bufflen(sc), 845 xfer_cnt); 846 } 847 } 848 } 849 850 if (xfer_cnt < sc->underflow) { 851 if (scsi_status == SAM_STAT_BUSY) 852 sc->result = SAM_STAT_BUSY; 853 else 854 sc->result = DID_SOFT_ERROR << 16; 855 } 856 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) { 857 /* What to do? 858 */ 859 sc->result = DID_SOFT_ERROR << 16; 860 } 861 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) { 862 /* Not real sure here either... */ 863 sc->result = DID_RESET << 16; 864 } 865 } 866 867 868 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT 869 " sc->underflow={report ERR if < %02xh bytes xfer'd}\n", 870 ioc->name, sc->underflow)); 871 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT 872 " ActBytesXferd=%02xh\n", ioc->name, xfer_cnt)); 873 874 /* Report Queue Full 875 */ 876 if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL) 877 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq); 878 879 break; 880 881 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: /* 0x0044 */ 882 scsi_set_resid(sc, 0); 883 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */ 884 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */ 885 sc->result = (DID_OK << 16) | scsi_status; 886 if (scsi_state == 0) { 887 ; 888 } else if (scsi_state & 889 MPI_SCSI_STATE_AUTOSENSE_VALID) { 890 891 /* 892 * For potential trouble on LSI53C1030. 893 * (date:2007.xx.) 894 * It is checked whether the length of 895 * request data is equal to 896 * the length of transfer and residual. 897 * MEDIUM_ERROR is set by incorrect data. 898 */ 899 if ((ioc->bus_type == SPI) && 900 (sc->sense_buffer[2] & 0x20)) { 901 u32 difftransfer; 902 difftransfer = 903 sc->sense_buffer[3] << 24 | 904 sc->sense_buffer[4] << 16 | 905 sc->sense_buffer[5] << 8 | 906 sc->sense_buffer[6]; 907 if (((sc->sense_buffer[3] & 0x80) == 908 0x80) && (scsi_bufflen(sc) 909 != xfer_cnt)) { 910 sc->sense_buffer[2] = 911 MEDIUM_ERROR; 912 sc->sense_buffer[12] = 0xff; 913 sc->sense_buffer[13] = 0xff; 914 printk(KERN_WARNING"Errata" 915 "on LSI53C1030 occurred." 916 "sc->req_bufflen=0x%02x," 917 "xfer_cnt=0x%02x\n" , 918 scsi_bufflen(sc), 919 xfer_cnt); 920 } 921 if (((sc->sense_buffer[3] & 0x80) 922 != 0x80) && 923 (scsi_bufflen(sc) != 924 xfer_cnt + difftransfer)) { 925 sc->sense_buffer[2] = 926 MEDIUM_ERROR; 927 sc->sense_buffer[12] = 0xff; 928 sc->sense_buffer[13] = 0xff; 929 printk(KERN_WARNING 930 "Errata on LSI53C1030 occurred" 931 "sc->req_bufflen=0x%02x," 932 " xfer_cnt=0x%02x," 933 "difftransfer=0x%02x\n", 934 scsi_bufflen(sc), 935 xfer_cnt, 936 difftransfer); 937 } 938 } 939 940 /* 941 * If running against circa 200003dd 909 MPT f/w, 942 * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL 943 * (QUEUE_FULL) returned from device! --> get 0x0000?128 944 * and with SenseBytes set to 0. 945 */ 946 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL) 947 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq); 948 949 } 950 else if (scsi_state & 951 (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS) 952 ) { 953 /* 954 * What to do? 955 */ 956 sc->result = DID_SOFT_ERROR << 16; 957 } 958 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) { 959 /* Not real sure here either... */ 960 sc->result = DID_RESET << 16; 961 } 962 else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) { 963 /* Device Inq. data indicates that it supports 964 * QTags, but rejects QTag messages. 965 * This command completed OK. 966 * 967 * Not real sure here either so do nothing... */ 968 } 969 970 if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL) 971 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq); 972 973 /* Add handling of: 974 * Reservation Conflict, Busy, 975 * Command Terminated, CHECK 976 */ 977 break; 978 979 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */ 980 sc->result = DID_SOFT_ERROR << 16; 981 break; 982 983 case MPI_IOCSTATUS_INVALID_FUNCTION: /* 0x0001 */ 984 case MPI_IOCSTATUS_INVALID_SGL: /* 0x0003 */ 985 case MPI_IOCSTATUS_INTERNAL_ERROR: /* 0x0004 */ 986 case MPI_IOCSTATUS_RESERVED: /* 0x0005 */ 987 case MPI_IOCSTATUS_INVALID_FIELD: /* 0x0007 */ 988 case MPI_IOCSTATUS_INVALID_STATE: /* 0x0008 */ 989 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */ 990 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED: /* 0x004A */ 991 default: 992 /* 993 * What to do? 994 */ 995 sc->result = DID_SOFT_ERROR << 16; 996 break; 997 998 } /* switch(status) */ 999 1000 #ifdef CONFIG_FUSION_LOGGING 1001 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY)) 1002 mptscsih_info_scsiio(ioc, sc, pScsiReply); 1003 #endif 1004 1005 } /* end of address reply case */ 1006 out: 1007 /* Unmap the DMA buffers, if any. */ 1008 scsi_dma_unmap(sc); 1009 1010 sc->scsi_done(sc); /* Issue the command callback */ 1011 1012 /* Free Chain buffers */ 1013 mptscsih_freeChainBuffers(ioc, req_idx); 1014 return 1; 1015 } 1016 1017 /* 1018 * mptscsih_flush_running_cmds - For each command found, search 1019 * Scsi_Host instance taskQ and reply to OS. 1020 * Called only if recovering from a FW reload. 1021 * @hd: Pointer to a SCSI HOST structure 1022 * 1023 * Returns: None. 1024 * 1025 * Must be called while new I/Os are being queued. 1026 */ 1027 static void 1028 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd) 1029 { 1030 MPT_ADAPTER *ioc = hd->ioc; 1031 struct scsi_cmnd *sc; 1032 SCSIIORequest_t *mf = NULL; 1033 int ii; 1034 int channel, id; 1035 1036 for (ii= 0; ii < ioc->req_depth; ii++) { 1037 sc = mptscsih_getclear_scsi_lookup(ioc, ii); 1038 if (!sc) 1039 continue; 1040 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii); 1041 if (!mf) 1042 continue; 1043 channel = mf->Bus; 1044 id = mf->TargetID; 1045 mptscsih_freeChainBuffers(ioc, ii); 1046 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf); 1047 if ((unsigned char *)mf != sc->host_scribble) 1048 continue; 1049 scsi_dma_unmap(sc); 1050 sc->result = DID_RESET << 16; 1051 sc->host_scribble = NULL; 1052 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT 1053 "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, " 1054 "idx=%x\n", ioc->name, channel, id, sc, mf, ii)); 1055 sc->scsi_done(sc); 1056 } 1057 } 1058 1059 /* 1060 * mptscsih_search_running_cmds - Delete any commands associated 1061 * with the specified target and lun. Function called only 1062 * when a lun is disable by mid-layer. 1063 * Do NOT access the referenced scsi_cmnd structure or 1064 * members. Will cause either a paging or NULL ptr error. 1065 * (BUT, BUT, BUT, the code does reference it! - mdr) 1066 * @hd: Pointer to a SCSI HOST structure 1067 * @vdevice: per device private data 1068 * 1069 * Returns: None. 1070 * 1071 * Called from slave_destroy. 1072 */ 1073 static void 1074 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice) 1075 { 1076 SCSIIORequest_t *mf = NULL; 1077 int ii; 1078 struct scsi_cmnd *sc; 1079 struct scsi_lun lun; 1080 MPT_ADAPTER *ioc = hd->ioc; 1081 unsigned long flags; 1082 1083 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1084 for (ii = 0; ii < ioc->req_depth; ii++) { 1085 if ((sc = ioc->ScsiLookup[ii]) != NULL) { 1086 1087 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii); 1088 if (mf == NULL) 1089 continue; 1090 /* If the device is a hidden raid component, then its 1091 * expected that the mf->function will be RAID_SCSI_IO 1092 */ 1093 if (vdevice->vtarget->tflags & 1094 MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function != 1095 MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) 1096 continue; 1097 1098 int_to_scsilun(vdevice->lun, &lun); 1099 if ((mf->Bus != vdevice->vtarget->channel) || 1100 (mf->TargetID != vdevice->vtarget->id) || 1101 memcmp(lun.scsi_lun, mf->LUN, 8)) 1102 continue; 1103 1104 if ((unsigned char *)mf != sc->host_scribble) 1105 continue; 1106 ioc->ScsiLookup[ii] = NULL; 1107 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1108 mptscsih_freeChainBuffers(ioc, ii); 1109 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf); 1110 scsi_dma_unmap(sc); 1111 sc->host_scribble = NULL; 1112 sc->result = DID_NO_CONNECT << 16; 1113 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, 1114 MYIOC_s_FMT "completing cmds: fw_channel %d, " 1115 "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name, 1116 vdevice->vtarget->channel, vdevice->vtarget->id, 1117 sc, mf, ii)); 1118 sc->scsi_done(sc); 1119 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1120 } 1121 } 1122 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1123 return; 1124 } 1125 1126 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1127 1128 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1129 /* 1130 * mptscsih_report_queue_full - Report QUEUE_FULL status returned 1131 * from a SCSI target device. 1132 * @sc: Pointer to scsi_cmnd structure 1133 * @pScsiReply: Pointer to SCSIIOReply_t 1134 * @pScsiReq: Pointer to original SCSI request 1135 * 1136 * This routine periodically reports QUEUE_FULL status returned from a 1137 * SCSI target device. It reports this to the console via kernel 1138 * printk() API call, not more than once every 10 seconds. 1139 */ 1140 static void 1141 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq) 1142 { 1143 long time = jiffies; 1144 MPT_SCSI_HOST *hd; 1145 MPT_ADAPTER *ioc; 1146 1147 if (sc->device == NULL) 1148 return; 1149 if (sc->device->host == NULL) 1150 return; 1151 if ((hd = shost_priv(sc->device->host)) == NULL) 1152 return; 1153 ioc = hd->ioc; 1154 if (time - hd->last_queue_full > 10 * HZ) { 1155 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n", 1156 ioc->name, 0, sc->device->id, sc->device->lun)); 1157 hd->last_queue_full = time; 1158 } 1159 } 1160 1161 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1162 /* 1163 * mptscsih_remove - Removed scsi devices 1164 * @pdev: Pointer to pci_dev structure 1165 * 1166 * 1167 */ 1168 void 1169 mptscsih_remove(struct pci_dev *pdev) 1170 { 1171 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1172 struct Scsi_Host *host = ioc->sh; 1173 MPT_SCSI_HOST *hd; 1174 int sz1; 1175 1176 scsi_remove_host(host); 1177 1178 if((hd = shost_priv(host)) == NULL) 1179 return; 1180 1181 mptscsih_shutdown(pdev); 1182 1183 sz1=0; 1184 1185 if (ioc->ScsiLookup != NULL) { 1186 sz1 = ioc->req_depth * sizeof(void *); 1187 kfree(ioc->ScsiLookup); 1188 ioc->ScsiLookup = NULL; 1189 } 1190 1191 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1192 "Free'd ScsiLookup (%d) memory\n", 1193 ioc->name, sz1)); 1194 1195 kfree(hd->info_kbuf); 1196 1197 /* NULL the Scsi_Host pointer 1198 */ 1199 ioc->sh = NULL; 1200 1201 scsi_host_put(host); 1202 1203 mpt_detach(pdev); 1204 1205 } 1206 1207 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1208 /* 1209 * mptscsih_shutdown - reboot notifier 1210 * 1211 */ 1212 void 1213 mptscsih_shutdown(struct pci_dev *pdev) 1214 { 1215 } 1216 1217 #ifdef CONFIG_PM 1218 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1219 /* 1220 * mptscsih_suspend - Fusion MPT scsi driver suspend routine. 1221 * 1222 * 1223 */ 1224 int 1225 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state) 1226 { 1227 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1228 1229 scsi_block_requests(ioc->sh); 1230 flush_scheduled_work(); 1231 mptscsih_shutdown(pdev); 1232 return mpt_suspend(pdev,state); 1233 } 1234 1235 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1236 /* 1237 * mptscsih_resume - Fusion MPT scsi driver resume routine. 1238 * 1239 * 1240 */ 1241 int 1242 mptscsih_resume(struct pci_dev *pdev) 1243 { 1244 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1245 int rc; 1246 1247 rc = mpt_resume(pdev); 1248 scsi_unblock_requests(ioc->sh); 1249 return rc; 1250 } 1251 1252 #endif 1253 1254 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1255 /** 1256 * mptscsih_info - Return information about MPT adapter 1257 * @SChost: Pointer to Scsi_Host structure 1258 * 1259 * (linux scsi_host_template.info routine) 1260 * 1261 * Returns pointer to buffer where information was written. 1262 */ 1263 const char * 1264 mptscsih_info(struct Scsi_Host *SChost) 1265 { 1266 MPT_SCSI_HOST *h; 1267 int size = 0; 1268 1269 h = shost_priv(SChost); 1270 1271 if (h) { 1272 if (h->info_kbuf == NULL) 1273 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL) 1274 return h->info_kbuf; 1275 h->info_kbuf[0] = '\0'; 1276 1277 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0); 1278 h->info_kbuf[size-1] = '\0'; 1279 } 1280 1281 return h->info_kbuf; 1282 } 1283 1284 struct info_str { 1285 char *buffer; 1286 int length; 1287 int offset; 1288 int pos; 1289 }; 1290 1291 static void 1292 mptscsih_copy_mem_info(struct info_str *info, char *data, int len) 1293 { 1294 if (info->pos + len > info->length) 1295 len = info->length - info->pos; 1296 1297 if (info->pos + len < info->offset) { 1298 info->pos += len; 1299 return; 1300 } 1301 1302 if (info->pos < info->offset) { 1303 data += (info->offset - info->pos); 1304 len -= (info->offset - info->pos); 1305 } 1306 1307 if (len > 0) { 1308 memcpy(info->buffer + info->pos, data, len); 1309 info->pos += len; 1310 } 1311 } 1312 1313 static int 1314 mptscsih_copy_info(struct info_str *info, char *fmt, ...) 1315 { 1316 va_list args; 1317 char buf[81]; 1318 int len; 1319 1320 va_start(args, fmt); 1321 len = vsprintf(buf, fmt, args); 1322 va_end(args); 1323 1324 mptscsih_copy_mem_info(info, buf, len); 1325 return len; 1326 } 1327 1328 static int 1329 mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len) 1330 { 1331 struct info_str info; 1332 1333 info.buffer = pbuf; 1334 info.length = len; 1335 info.offset = offset; 1336 info.pos = 0; 1337 1338 mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name); 1339 mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word); 1340 mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts); 1341 mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth); 1342 1343 return ((info.pos > info.offset) ? info.pos - info.offset : 0); 1344 } 1345 1346 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1347 /** 1348 * mptscsih_proc_info - Return information about MPT adapter 1349 * @host: scsi host struct 1350 * @buffer: if write, user data; if read, buffer for user 1351 * @start: returns the buffer address 1352 * @offset: if write, 0; if read, the current offset into the buffer from 1353 * the previous read. 1354 * @length: if write, return length; 1355 * @func: write = 1; read = 0 1356 * 1357 * (linux scsi_host_template.info routine) 1358 */ 1359 int 1360 mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, 1361 int length, int func) 1362 { 1363 MPT_SCSI_HOST *hd = shost_priv(host); 1364 MPT_ADAPTER *ioc = hd->ioc; 1365 int size = 0; 1366 1367 if (func) { 1368 /* 1369 * write is not supported 1370 */ 1371 } else { 1372 if (start) 1373 *start = buffer; 1374 1375 size = mptscsih_host_info(ioc, buffer, offset, length); 1376 } 1377 1378 return size; 1379 } 1380 1381 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1382 #define ADD_INDEX_LOG(req_ent) do { } while(0) 1383 1384 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1385 /** 1386 * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine. 1387 * @SCpnt: Pointer to scsi_cmnd structure 1388 * @done: Pointer SCSI mid-layer IO completion function 1389 * 1390 * (linux scsi_host_template.queuecommand routine) 1391 * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest 1392 * from a linux scsi_cmnd request and send it to the IOC. 1393 * 1394 * Returns 0. (rtn value discarded by linux scsi mid-layer) 1395 */ 1396 int 1397 mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) 1398 { 1399 MPT_SCSI_HOST *hd; 1400 MPT_FRAME_HDR *mf; 1401 SCSIIORequest_t *pScsiReq; 1402 VirtDevice *vdevice = SCpnt->device->hostdata; 1403 u32 datalen; 1404 u32 scsictl; 1405 u32 scsidir; 1406 u32 cmd_len; 1407 int my_idx; 1408 int ii; 1409 MPT_ADAPTER *ioc; 1410 1411 hd = shost_priv(SCpnt->device->host); 1412 ioc = hd->ioc; 1413 SCpnt->scsi_done = done; 1414 1415 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n", 1416 ioc->name, SCpnt, done)); 1417 1418 if (ioc->taskmgmt_quiesce_io) { 1419 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT "qcmd: SCpnt=%p timeout + 60HZ\n", 1420 ioc->name, SCpnt)); 1421 return SCSI_MLQUEUE_HOST_BUSY; 1422 } 1423 1424 /* 1425 * Put together a MPT SCSI request... 1426 */ 1427 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) { 1428 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n", 1429 ioc->name)); 1430 return SCSI_MLQUEUE_HOST_BUSY; 1431 } 1432 1433 pScsiReq = (SCSIIORequest_t *) mf; 1434 1435 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 1436 1437 ADD_INDEX_LOG(my_idx); 1438 1439 /* TUR's being issued with scsictl=0x02000000 (DATA_IN)! 1440 * Seems we may receive a buffer (datalen>0) even when there 1441 * will be no data transfer! GRRRRR... 1442 */ 1443 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) { 1444 datalen = scsi_bufflen(SCpnt); 1445 scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */ 1446 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) { 1447 datalen = scsi_bufflen(SCpnt); 1448 scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */ 1449 } else { 1450 datalen = 0; 1451 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER; 1452 } 1453 1454 /* Default to untagged. Once a target structure has been allocated, 1455 * use the Inquiry data to determine if device supports tagged. 1456 */ 1457 if (vdevice 1458 && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES) 1459 && (SCpnt->device->tagged_supported)) { 1460 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ; 1461 if (SCpnt->request && SCpnt->request->ioprio) { 1462 if (((SCpnt->request->ioprio & 0x7) == 1) || 1463 !(SCpnt->request->ioprio & 0x7)) 1464 scsictl |= MPI_SCSIIO_CONTROL_HEADOFQ; 1465 } 1466 } else 1467 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED; 1468 1469 1470 /* Use the above information to set up the message frame 1471 */ 1472 pScsiReq->TargetID = (u8) vdevice->vtarget->id; 1473 pScsiReq->Bus = vdevice->vtarget->channel; 1474 pScsiReq->ChainOffset = 0; 1475 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) 1476 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH; 1477 else 1478 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST; 1479 pScsiReq->CDBLength = SCpnt->cmd_len; 1480 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE; 1481 pScsiReq->Reserved = 0; 1482 pScsiReq->MsgFlags = mpt_msg_flags(ioc); 1483 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN); 1484 pScsiReq->Control = cpu_to_le32(scsictl); 1485 1486 /* 1487 * Write SCSI CDB into the message 1488 */ 1489 cmd_len = SCpnt->cmd_len; 1490 for (ii=0; ii < cmd_len; ii++) 1491 pScsiReq->CDB[ii] = SCpnt->cmnd[ii]; 1492 1493 for (ii=cmd_len; ii < 16; ii++) 1494 pScsiReq->CDB[ii] = 0; 1495 1496 /* DataLength */ 1497 pScsiReq->DataLength = cpu_to_le32(datalen); 1498 1499 /* SenseBuffer low address */ 1500 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma 1501 + (my_idx * MPT_SENSE_BUFFER_ALLOC)); 1502 1503 /* Now add the SG list 1504 * Always have a SGE even if null length. 1505 */ 1506 if (datalen == 0) { 1507 /* Add a NULL SGE */ 1508 ioc->add_sge((char *)&pScsiReq->SGL, 1509 MPT_SGE_FLAGS_SSIMPLE_READ | 0, 1510 (dma_addr_t) -1); 1511 } else { 1512 /* Add a 32 or 64 bit SGE */ 1513 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS) 1514 goto fail; 1515 } 1516 1517 SCpnt->host_scribble = (unsigned char *)mf; 1518 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt); 1519 1520 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf); 1521 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n", 1522 ioc->name, SCpnt, mf, my_idx)); 1523 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf); 1524 return 0; 1525 1526 fail: 1527 mptscsih_freeChainBuffers(ioc, my_idx); 1528 mpt_free_msg_frame(ioc, mf); 1529 return SCSI_MLQUEUE_HOST_BUSY; 1530 } 1531 1532 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1533 /* 1534 * mptscsih_freeChainBuffers - Function to free chain buffers associated 1535 * with a SCSI IO request 1536 * @hd: Pointer to the MPT_SCSI_HOST instance 1537 * @req_idx: Index of the SCSI IO request frame. 1538 * 1539 * Called if SG chain buffer allocation fails and mptscsih callbacks. 1540 * No return. 1541 */ 1542 static void 1543 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx) 1544 { 1545 MPT_FRAME_HDR *chain; 1546 unsigned long flags; 1547 int chain_idx; 1548 int next; 1549 1550 /* Get the first chain index and reset 1551 * tracker state. 1552 */ 1553 chain_idx = ioc->ReqToChain[req_idx]; 1554 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN; 1555 1556 while (chain_idx != MPT_HOST_NO_CHAIN) { 1557 1558 /* Save the next chain buffer index */ 1559 next = ioc->ChainToChain[chain_idx]; 1560 1561 /* Free this chain buffer and reset 1562 * tracker 1563 */ 1564 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN; 1565 1566 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer 1567 + (chain_idx * ioc->req_sz)); 1568 1569 spin_lock_irqsave(&ioc->FreeQlock, flags); 1570 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ); 1571 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1572 1573 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n", 1574 ioc->name, chain_idx)); 1575 1576 /* handle next */ 1577 chain_idx = next; 1578 } 1579 return; 1580 } 1581 1582 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1583 /* 1584 * Reset Handling 1585 */ 1586 1587 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1588 /** 1589 * mptscsih_IssueTaskMgmt - Generic send Task Management function. 1590 * @hd: Pointer to MPT_SCSI_HOST structure 1591 * @type: Task Management type 1592 * @channel: channel number for task management 1593 * @id: Logical Target ID for reset (if appropriate) 1594 * @lun: Logical Unit for reset (if appropriate) 1595 * @ctx2abort: Context for the task to be aborted (if appropriate) 1596 * @timeout: timeout for task management control 1597 * 1598 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer) 1599 * or a non-interrupt thread. In the former, must not call schedule(). 1600 * 1601 * Not all fields are meaningfull for all task types. 1602 * 1603 * Returns 0 for SUCCESS, or FAILED. 1604 * 1605 **/ 1606 int 1607 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, 1608 int ctx2abort, ulong timeout) 1609 { 1610 MPT_FRAME_HDR *mf; 1611 SCSITaskMgmt_t *pScsiTm; 1612 int ii; 1613 int retval; 1614 MPT_ADAPTER *ioc = hd->ioc; 1615 unsigned long timeleft; 1616 u8 issue_hard_reset; 1617 u32 ioc_raw_state; 1618 unsigned long time_count; 1619 1620 issue_hard_reset = 0; 1621 ioc_raw_state = mpt_GetIocState(ioc, 0); 1622 1623 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) { 1624 printk(MYIOC_s_WARN_FMT 1625 "TaskMgmt type=%x: IOC Not operational (0x%x)!\n", 1626 ioc->name, type, ioc_raw_state); 1627 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n", 1628 ioc->name, __func__); 1629 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0) 1630 printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset " 1631 "FAILED!!\n", ioc->name); 1632 return 0; 1633 } 1634 1635 if (ioc_raw_state & MPI_DOORBELL_ACTIVE) { 1636 printk(MYIOC_s_WARN_FMT 1637 "TaskMgmt type=%x: ioc_state: " 1638 "DOORBELL_ACTIVE (0x%x)!\n", 1639 ioc->name, type, ioc_raw_state); 1640 return FAILED; 1641 } 1642 1643 mutex_lock(&ioc->taskmgmt_cmds.mutex); 1644 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) { 1645 mf = NULL; 1646 retval = FAILED; 1647 goto out; 1648 } 1649 1650 /* Return Fail to calling function if no message frames available. 1651 */ 1652 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) { 1653 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 1654 "TaskMgmt no msg frames!!\n", ioc->name)); 1655 retval = FAILED; 1656 mpt_clear_taskmgmt_in_progress_flag(ioc); 1657 goto out; 1658 } 1659 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n", 1660 ioc->name, mf)); 1661 1662 /* Format the Request 1663 */ 1664 pScsiTm = (SCSITaskMgmt_t *) mf; 1665 pScsiTm->TargetID = id; 1666 pScsiTm->Bus = channel; 1667 pScsiTm->ChainOffset = 0; 1668 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT; 1669 1670 pScsiTm->Reserved = 0; 1671 pScsiTm->TaskType = type; 1672 pScsiTm->Reserved1 = 0; 1673 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) 1674 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0; 1675 1676 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN); 1677 1678 for (ii=0; ii < 7; ii++) 1679 pScsiTm->Reserved2[ii] = 0; 1680 1681 pScsiTm->TaskMsgContext = ctx2abort; 1682 1683 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) " 1684 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort, 1685 type, timeout)); 1686 1687 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm); 1688 1689 INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status) 1690 time_count = jiffies; 1691 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) && 1692 (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) 1693 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf); 1694 else { 1695 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc, 1696 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP); 1697 if (retval) { 1698 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 1699 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n", 1700 ioc->name, mf, retval)); 1701 mpt_free_msg_frame(ioc, mf); 1702 mpt_clear_taskmgmt_in_progress_flag(ioc); 1703 goto out; 1704 } 1705 } 1706 1707 timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done, 1708 timeout*HZ); 1709 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) { 1710 retval = FAILED; 1711 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT 1712 "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf)); 1713 mpt_clear_taskmgmt_in_progress_flag(ioc); 1714 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) 1715 goto out; 1716 issue_hard_reset = 1; 1717 goto out; 1718 } 1719 1720 retval = mptscsih_taskmgmt_reply(ioc, type, 1721 (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply); 1722 1723 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1724 "TaskMgmt completed (%d seconds)\n", 1725 ioc->name, jiffies_to_msecs(jiffies - time_count)/1000)); 1726 1727 out: 1728 1729 CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status) 1730 if (issue_hard_reset) { 1731 printk(MYIOC_s_WARN_FMT 1732 "Issuing Reset from %s!! doorbell=0x%08x\n", 1733 ioc->name, __func__, mpt_GetIocState(ioc, 0)); 1734 retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); 1735 mpt_free_msg_frame(ioc, mf); 1736 } 1737 1738 retval = (retval == 0) ? 0 : FAILED; 1739 mutex_unlock(&ioc->taskmgmt_cmds.mutex); 1740 return retval; 1741 } 1742 EXPORT_SYMBOL(mptscsih_IssueTaskMgmt); 1743 1744 static int 1745 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc) 1746 { 1747 switch (ioc->bus_type) { 1748 case FC: 1749 return 40; 1750 case SAS: 1751 return 30; 1752 case SPI: 1753 default: 1754 return 10; 1755 } 1756 } 1757 1758 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1759 /** 1760 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant 1761 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted 1762 * 1763 * (linux scsi_host_template.eh_abort_handler routine) 1764 * 1765 * Returns SUCCESS or FAILED. 1766 **/ 1767 int 1768 mptscsih_abort(struct scsi_cmnd * SCpnt) 1769 { 1770 MPT_SCSI_HOST *hd; 1771 MPT_FRAME_HDR *mf; 1772 u32 ctx2abort; 1773 int scpnt_idx; 1774 int retval; 1775 VirtDevice *vdevice; 1776 ulong sn = SCpnt->serial_number; 1777 MPT_ADAPTER *ioc; 1778 1779 /* If we can't locate our host adapter structure, return FAILED status. 1780 */ 1781 if ((hd = shost_priv(SCpnt->device->host)) == NULL) { 1782 SCpnt->result = DID_RESET << 16; 1783 SCpnt->scsi_done(SCpnt); 1784 printk(KERN_ERR MYNAM ": task abort: " 1785 "can't locate host! (sc=%p)\n", SCpnt); 1786 return FAILED; 1787 } 1788 1789 ioc = hd->ioc; 1790 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n", 1791 ioc->name, SCpnt); 1792 scsi_print_command(SCpnt); 1793 1794 vdevice = SCpnt->device->hostdata; 1795 if (!vdevice || !vdevice->vtarget) { 1796 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1797 "task abort: device has been deleted (sc=%p)\n", 1798 ioc->name, SCpnt)); 1799 SCpnt->result = DID_NO_CONNECT << 16; 1800 SCpnt->scsi_done(SCpnt); 1801 retval = SUCCESS; 1802 goto out; 1803 } 1804 1805 /* Task aborts are not supported for hidden raid components. 1806 */ 1807 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) { 1808 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1809 "task abort: hidden raid component (sc=%p)\n", 1810 ioc->name, SCpnt)); 1811 SCpnt->result = DID_RESET << 16; 1812 retval = FAILED; 1813 goto out; 1814 } 1815 1816 /* Task aborts are not supported for volumes. 1817 */ 1818 if (vdevice->vtarget->raidVolume) { 1819 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1820 "task abort: raid volume (sc=%p)\n", 1821 ioc->name, SCpnt)); 1822 SCpnt->result = DID_RESET << 16; 1823 retval = FAILED; 1824 goto out; 1825 } 1826 1827 /* Find this command 1828 */ 1829 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) { 1830 /* Cmd not found in ScsiLookup. 1831 * Do OS callback. 1832 */ 1833 SCpnt->result = DID_RESET << 16; 1834 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: " 1835 "Command not in the active list! (sc=%p)\n", ioc->name, 1836 SCpnt)); 1837 retval = SUCCESS; 1838 goto out; 1839 } 1840 1841 if (ioc->timeouts < -1) 1842 ioc->timeouts++; 1843 1844 if (mpt_fwfault_debug) 1845 mpt_halt_firmware(ioc); 1846 1847 /* Most important! Set TaskMsgContext to SCpnt's MsgContext! 1848 * (the IO to be ABORT'd) 1849 * 1850 * NOTE: Since we do not byteswap MsgContext, we do not 1851 * swap it here either. It is an opaque cookie to 1852 * the controller, so it does not matter. -DaveM 1853 */ 1854 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx); 1855 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext; 1856 retval = mptscsih_IssueTaskMgmt(hd, 1857 MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK, 1858 vdevice->vtarget->channel, 1859 vdevice->vtarget->id, vdevice->lun, 1860 ctx2abort, mptscsih_get_tm_timeout(ioc)); 1861 1862 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx && 1863 SCpnt->serial_number == sn) { 1864 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1865 "task abort: command still in active list! (sc=%p)\n", 1866 ioc->name, SCpnt)); 1867 retval = FAILED; 1868 } else { 1869 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1870 "task abort: command cleared from active list! (sc=%p)\n", 1871 ioc->name, SCpnt)); 1872 retval = SUCCESS; 1873 } 1874 1875 out: 1876 printk(MYIOC_s_INFO_FMT "task abort: %s (sc=%p)\n", 1877 ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), SCpnt); 1878 1879 return retval; 1880 } 1881 1882 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1883 /** 1884 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant 1885 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to 1886 * 1887 * (linux scsi_host_template.eh_dev_reset_handler routine) 1888 * 1889 * Returns SUCCESS or FAILED. 1890 **/ 1891 int 1892 mptscsih_dev_reset(struct scsi_cmnd * SCpnt) 1893 { 1894 MPT_SCSI_HOST *hd; 1895 int retval; 1896 VirtDevice *vdevice; 1897 MPT_ADAPTER *ioc; 1898 1899 /* If we can't locate our host adapter structure, return FAILED status. 1900 */ 1901 if ((hd = shost_priv(SCpnt->device->host)) == NULL){ 1902 printk(KERN_ERR MYNAM ": target reset: " 1903 "Can't locate host! (sc=%p)\n", SCpnt); 1904 return FAILED; 1905 } 1906 1907 ioc = hd->ioc; 1908 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n", 1909 ioc->name, SCpnt); 1910 scsi_print_command(SCpnt); 1911 1912 vdevice = SCpnt->device->hostdata; 1913 if (!vdevice || !vdevice->vtarget) { 1914 retval = SUCCESS; 1915 goto out; 1916 } 1917 1918 /* Target reset to hidden raid component is not supported 1919 */ 1920 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) { 1921 retval = FAILED; 1922 goto out; 1923 } 1924 1925 retval = mptscsih_IssueTaskMgmt(hd, 1926 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 1927 vdevice->vtarget->channel, 1928 vdevice->vtarget->id, 0, 0, 1929 mptscsih_get_tm_timeout(ioc)); 1930 1931 out: 1932 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n", 1933 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); 1934 1935 if (retval == 0) 1936 return SUCCESS; 1937 else 1938 return FAILED; 1939 } 1940 1941 1942 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1943 /** 1944 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant 1945 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to 1946 * 1947 * (linux scsi_host_template.eh_bus_reset_handler routine) 1948 * 1949 * Returns SUCCESS or FAILED. 1950 **/ 1951 int 1952 mptscsih_bus_reset(struct scsi_cmnd * SCpnt) 1953 { 1954 MPT_SCSI_HOST *hd; 1955 int retval; 1956 VirtDevice *vdevice; 1957 MPT_ADAPTER *ioc; 1958 1959 /* If we can't locate our host adapter structure, return FAILED status. 1960 */ 1961 if ((hd = shost_priv(SCpnt->device->host)) == NULL){ 1962 printk(KERN_ERR MYNAM ": bus reset: " 1963 "Can't locate host! (sc=%p)\n", SCpnt); 1964 return FAILED; 1965 } 1966 1967 ioc = hd->ioc; 1968 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n", 1969 ioc->name, SCpnt); 1970 scsi_print_command(SCpnt); 1971 1972 if (ioc->timeouts < -1) 1973 ioc->timeouts++; 1974 1975 vdevice = SCpnt->device->hostdata; 1976 if (!vdevice || !vdevice->vtarget) 1977 return SUCCESS; 1978 retval = mptscsih_IssueTaskMgmt(hd, 1979 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS, 1980 vdevice->vtarget->channel, 0, 0, 0, 1981 mptscsih_get_tm_timeout(ioc)); 1982 1983 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n", 1984 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); 1985 1986 if (retval == 0) 1987 return SUCCESS; 1988 else 1989 return FAILED; 1990 } 1991 1992 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1993 /** 1994 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant) 1995 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to 1996 * 1997 * (linux scsi_host_template.eh_host_reset_handler routine) 1998 * 1999 * Returns SUCCESS or FAILED. 2000 */ 2001 int 2002 mptscsih_host_reset(struct scsi_cmnd *SCpnt) 2003 { 2004 MPT_SCSI_HOST * hd; 2005 int status = SUCCESS; 2006 MPT_ADAPTER *ioc; 2007 int retval; 2008 2009 /* If we can't locate the host to reset, then we failed. */ 2010 if ((hd = shost_priv(SCpnt->device->host)) == NULL){ 2011 printk(KERN_ERR MYNAM ": host reset: " 2012 "Can't locate host! (sc=%p)\n", SCpnt); 2013 return FAILED; 2014 } 2015 2016 /* make sure we have no outstanding commands at this stage */ 2017 mptscsih_flush_running_cmds(hd); 2018 2019 ioc = hd->ioc; 2020 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n", 2021 ioc->name, SCpnt); 2022 2023 /* If our attempts to reset the host failed, then return a failed 2024 * status. The host will be taken off line by the SCSI mid-layer. 2025 */ 2026 retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); 2027 if (retval < 0) 2028 status = FAILED; 2029 else 2030 status = SUCCESS; 2031 2032 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n", 2033 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); 2034 2035 return status; 2036 } 2037 2038 static int 2039 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type, 2040 SCSITaskMgmtReply_t *pScsiTmReply) 2041 { 2042 u16 iocstatus; 2043 u32 termination_count; 2044 int retval; 2045 2046 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) { 2047 retval = FAILED; 2048 goto out; 2049 } 2050 2051 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply); 2052 2053 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK; 2054 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount); 2055 2056 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2057 "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n" 2058 "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n" 2059 "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus, 2060 pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus), 2061 le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode, 2062 termination_count)); 2063 2064 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 && 2065 pScsiTmReply->ResponseCode) 2066 mptscsih_taskmgmt_response_code(ioc, 2067 pScsiTmReply->ResponseCode); 2068 2069 if (iocstatus == MPI_IOCSTATUS_SUCCESS) { 2070 retval = 0; 2071 goto out; 2072 } 2073 2074 retval = FAILED; 2075 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) { 2076 if (termination_count == 1) 2077 retval = 0; 2078 goto out; 2079 } 2080 2081 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED || 2082 iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED) 2083 retval = 0; 2084 2085 out: 2086 return retval; 2087 } 2088 2089 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2090 void 2091 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code) 2092 { 2093 char *desc; 2094 2095 switch (response_code) { 2096 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE: 2097 desc = "The task completed."; 2098 break; 2099 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME: 2100 desc = "The IOC received an invalid frame status."; 2101 break; 2102 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED: 2103 desc = "The task type is not supported."; 2104 break; 2105 case MPI_SCSITASKMGMT_RSP_TM_FAILED: 2106 desc = "The requested task failed."; 2107 break; 2108 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED: 2109 desc = "The task completed successfully."; 2110 break; 2111 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN: 2112 desc = "The LUN request is invalid."; 2113 break; 2114 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC: 2115 desc = "The task is in the IOC queue and has not been sent to target."; 2116 break; 2117 default: 2118 desc = "unknown"; 2119 break; 2120 } 2121 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n", 2122 ioc->name, response_code, desc); 2123 } 2124 EXPORT_SYMBOL(mptscsih_taskmgmt_response_code); 2125 2126 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2127 /** 2128 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver 2129 * @ioc: Pointer to MPT_ADAPTER structure 2130 * @mf: Pointer to SCSI task mgmt request frame 2131 * @mr: Pointer to SCSI task mgmt reply frame 2132 * 2133 * This routine is called from mptbase.c::mpt_interrupt() at the completion 2134 * of any SCSI task management request. 2135 * This routine is registered with the MPT (base) driver at driver 2136 * load/init time via the mpt_register() API call. 2137 * 2138 * Returns 1 indicating alloc'd request frame ptr should be freed. 2139 **/ 2140 int 2141 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, 2142 MPT_FRAME_HDR *mr) 2143 { 2144 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2145 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr)); 2146 2147 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD; 2148 2149 if (!mr) 2150 goto out; 2151 2152 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID; 2153 memcpy(ioc->taskmgmt_cmds.reply, mr, 2154 min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength)); 2155 out: 2156 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) { 2157 mpt_clear_taskmgmt_in_progress_flag(ioc); 2158 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING; 2159 complete(&ioc->taskmgmt_cmds.done); 2160 if (ioc->bus_type == SAS) 2161 ioc->schedule_target_reset(ioc); 2162 return 1; 2163 } 2164 return 0; 2165 } 2166 2167 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2168 /* 2169 * This is anyones guess quite frankly. 2170 */ 2171 int 2172 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev, 2173 sector_t capacity, int geom[]) 2174 { 2175 int heads; 2176 int sectors; 2177 sector_t cylinders; 2178 ulong dummy; 2179 2180 heads = 64; 2181 sectors = 32; 2182 2183 dummy = heads * sectors; 2184 cylinders = capacity; 2185 sector_div(cylinders,dummy); 2186 2187 /* 2188 * Handle extended translation size for logical drives 2189 * > 1Gb 2190 */ 2191 if ((ulong)capacity >= 0x200000) { 2192 heads = 255; 2193 sectors = 63; 2194 dummy = heads * sectors; 2195 cylinders = capacity; 2196 sector_div(cylinders,dummy); 2197 } 2198 2199 /* return result */ 2200 geom[0] = heads; 2201 geom[1] = sectors; 2202 geom[2] = cylinders; 2203 2204 return 0; 2205 } 2206 2207 /* Search IOC page 3 to determine if this is hidden physical disk 2208 * 2209 */ 2210 int 2211 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id) 2212 { 2213 struct inactive_raid_component_info *component_info; 2214 int i, j; 2215 RaidPhysDiskPage1_t *phys_disk; 2216 int rc = 0; 2217 int num_paths; 2218 2219 if (!ioc->raid_data.pIocPg3) 2220 goto out; 2221 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2222 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) && 2223 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) { 2224 rc = 1; 2225 goto out; 2226 } 2227 } 2228 2229 if (ioc->bus_type != SAS) 2230 goto out; 2231 2232 /* 2233 * Check if dual path 2234 */ 2235 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2236 num_paths = mpt_raid_phys_disk_get_num_paths(ioc, 2237 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum); 2238 if (num_paths < 2) 2239 continue; 2240 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) + 2241 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL); 2242 if (!phys_disk) 2243 continue; 2244 if ((mpt_raid_phys_disk_pg1(ioc, 2245 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum, 2246 phys_disk))) { 2247 kfree(phys_disk); 2248 continue; 2249 } 2250 for (j = 0; j < num_paths; j++) { 2251 if ((phys_disk->Path[j].Flags & 2252 MPI_RAID_PHYSDISK1_FLAG_INVALID)) 2253 continue; 2254 if ((phys_disk->Path[j].Flags & 2255 MPI_RAID_PHYSDISK1_FLAG_BROKEN)) 2256 continue; 2257 if ((id == phys_disk->Path[j].PhysDiskID) && 2258 (channel == phys_disk->Path[j].PhysDiskBus)) { 2259 rc = 1; 2260 kfree(phys_disk); 2261 goto out; 2262 } 2263 } 2264 kfree(phys_disk); 2265 } 2266 2267 2268 /* 2269 * Check inactive list for matching phys disks 2270 */ 2271 if (list_empty(&ioc->raid_data.inactive_list)) 2272 goto out; 2273 2274 mutex_lock(&ioc->raid_data.inactive_list_mutex); 2275 list_for_each_entry(component_info, &ioc->raid_data.inactive_list, 2276 list) { 2277 if ((component_info->d.PhysDiskID == id) && 2278 (component_info->d.PhysDiskBus == channel)) 2279 rc = 1; 2280 } 2281 mutex_unlock(&ioc->raid_data.inactive_list_mutex); 2282 2283 out: 2284 return rc; 2285 } 2286 EXPORT_SYMBOL(mptscsih_is_phys_disk); 2287 2288 u8 2289 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id) 2290 { 2291 struct inactive_raid_component_info *component_info; 2292 int i, j; 2293 RaidPhysDiskPage1_t *phys_disk; 2294 int rc = -ENXIO; 2295 int num_paths; 2296 2297 if (!ioc->raid_data.pIocPg3) 2298 goto out; 2299 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2300 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) && 2301 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) { 2302 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum; 2303 goto out; 2304 } 2305 } 2306 2307 if (ioc->bus_type != SAS) 2308 goto out; 2309 2310 /* 2311 * Check if dual path 2312 */ 2313 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2314 num_paths = mpt_raid_phys_disk_get_num_paths(ioc, 2315 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum); 2316 if (num_paths < 2) 2317 continue; 2318 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) + 2319 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL); 2320 if (!phys_disk) 2321 continue; 2322 if ((mpt_raid_phys_disk_pg1(ioc, 2323 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum, 2324 phys_disk))) { 2325 kfree(phys_disk); 2326 continue; 2327 } 2328 for (j = 0; j < num_paths; j++) { 2329 if ((phys_disk->Path[j].Flags & 2330 MPI_RAID_PHYSDISK1_FLAG_INVALID)) 2331 continue; 2332 if ((phys_disk->Path[j].Flags & 2333 MPI_RAID_PHYSDISK1_FLAG_BROKEN)) 2334 continue; 2335 if ((id == phys_disk->Path[j].PhysDiskID) && 2336 (channel == phys_disk->Path[j].PhysDiskBus)) { 2337 rc = phys_disk->PhysDiskNum; 2338 kfree(phys_disk); 2339 goto out; 2340 } 2341 } 2342 kfree(phys_disk); 2343 } 2344 2345 /* 2346 * Check inactive list for matching phys disks 2347 */ 2348 if (list_empty(&ioc->raid_data.inactive_list)) 2349 goto out; 2350 2351 mutex_lock(&ioc->raid_data.inactive_list_mutex); 2352 list_for_each_entry(component_info, &ioc->raid_data.inactive_list, 2353 list) { 2354 if ((component_info->d.PhysDiskID == id) && 2355 (component_info->d.PhysDiskBus == channel)) 2356 rc = component_info->d.PhysDiskNum; 2357 } 2358 mutex_unlock(&ioc->raid_data.inactive_list_mutex); 2359 2360 out: 2361 return rc; 2362 } 2363 EXPORT_SYMBOL(mptscsih_raid_id_to_num); 2364 2365 /* 2366 * OS entry point to allow for host driver to free allocated memory 2367 * Called if no device present or device being unloaded 2368 */ 2369 void 2370 mptscsih_slave_destroy(struct scsi_device *sdev) 2371 { 2372 struct Scsi_Host *host = sdev->host; 2373 MPT_SCSI_HOST *hd = shost_priv(host); 2374 VirtTarget *vtarget; 2375 VirtDevice *vdevice; 2376 struct scsi_target *starget; 2377 2378 starget = scsi_target(sdev); 2379 vtarget = starget->hostdata; 2380 vdevice = sdev->hostdata; 2381 if (!vdevice) 2382 return; 2383 2384 mptscsih_search_running_cmds(hd, vdevice); 2385 vtarget->num_luns--; 2386 mptscsih_synchronize_cache(hd, vdevice); 2387 kfree(vdevice); 2388 sdev->hostdata = NULL; 2389 } 2390 2391 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2392 /* 2393 * mptscsih_change_queue_depth - This function will set a devices queue depth 2394 * @sdev: per scsi_device pointer 2395 * @qdepth: requested queue depth 2396 * @reason: calling context 2397 * 2398 * Adding support for new 'change_queue_depth' api. 2399 */ 2400 int 2401 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) 2402 { 2403 MPT_SCSI_HOST *hd = shost_priv(sdev->host); 2404 VirtTarget *vtarget; 2405 struct scsi_target *starget; 2406 int max_depth; 2407 int tagged; 2408 MPT_ADAPTER *ioc = hd->ioc; 2409 2410 starget = scsi_target(sdev); 2411 vtarget = starget->hostdata; 2412 2413 if (reason != SCSI_QDEPTH_DEFAULT) 2414 return -EOPNOTSUPP; 2415 2416 if (ioc->bus_type == SPI) { 2417 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)) 2418 max_depth = 1; 2419 else if (sdev->type == TYPE_DISK && 2420 vtarget->minSyncFactor <= MPT_ULTRA160) 2421 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH; 2422 else 2423 max_depth = MPT_SCSI_CMD_PER_DEV_LOW; 2424 } else 2425 max_depth = ioc->sh->can_queue; 2426 2427 if (!sdev->tagged_supported) 2428 max_depth = 1; 2429 2430 if (qdepth > max_depth) 2431 qdepth = max_depth; 2432 if (qdepth == 1) 2433 tagged = 0; 2434 else 2435 tagged = MSG_SIMPLE_TAG; 2436 2437 scsi_adjust_queue_depth(sdev, tagged, qdepth); 2438 return sdev->queue_depth; 2439 } 2440 2441 /* 2442 * OS entry point to adjust the queue_depths on a per-device basis. 2443 * Called once per device the bus scan. Use it to force the queue_depth 2444 * member to 1 if a device does not support Q tags. 2445 * Return non-zero if fails. 2446 */ 2447 int 2448 mptscsih_slave_configure(struct scsi_device *sdev) 2449 { 2450 struct Scsi_Host *sh = sdev->host; 2451 VirtTarget *vtarget; 2452 VirtDevice *vdevice; 2453 struct scsi_target *starget; 2454 MPT_SCSI_HOST *hd = shost_priv(sh); 2455 MPT_ADAPTER *ioc = hd->ioc; 2456 2457 starget = scsi_target(sdev); 2458 vtarget = starget->hostdata; 2459 vdevice = sdev->hostdata; 2460 2461 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2462 "device @ %p, channel=%d, id=%d, lun=%d\n", 2463 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun)); 2464 if (ioc->bus_type == SPI) 2465 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2466 "sdtr %d wdtr %d ppr %d inq length=%d\n", 2467 ioc->name, sdev->sdtr, sdev->wdtr, 2468 sdev->ppr, sdev->inquiry_len)); 2469 2470 vdevice->configured_lun = 1; 2471 2472 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2473 "Queue depth=%d, tflags=%x\n", 2474 ioc->name, sdev->queue_depth, vtarget->tflags)); 2475 2476 if (ioc->bus_type == SPI) 2477 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2478 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n", 2479 ioc->name, vtarget->negoFlags, vtarget->maxOffset, 2480 vtarget->minSyncFactor)); 2481 2482 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH, 2483 SCSI_QDEPTH_DEFAULT); 2484 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2485 "tagged %d, simple %d, ordered %d\n", 2486 ioc->name,sdev->tagged_supported, sdev->simple_tags, 2487 sdev->ordered_tags)); 2488 2489 blk_queue_dma_alignment (sdev->request_queue, 512 - 1); 2490 2491 return 0; 2492 } 2493 2494 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2495 /* 2496 * Private routines... 2497 */ 2498 2499 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2500 /* Utility function to copy sense data from the scsi_cmnd buffer 2501 * to the FC and SCSI target structures. 2502 * 2503 */ 2504 static void 2505 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply) 2506 { 2507 VirtDevice *vdevice; 2508 SCSIIORequest_t *pReq; 2509 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount); 2510 MPT_ADAPTER *ioc = hd->ioc; 2511 2512 /* Get target structure 2513 */ 2514 pReq = (SCSIIORequest_t *) mf; 2515 vdevice = sc->device->hostdata; 2516 2517 if (sense_count) { 2518 u8 *sense_data; 2519 int req_index; 2520 2521 /* Copy the sense received into the scsi command block. */ 2522 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 2523 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC)); 2524 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc)); 2525 2526 /* Log SMART data (asc = 0x5D, non-IM case only) if required. 2527 */ 2528 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) { 2529 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) { 2530 int idx; 2531 2532 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE; 2533 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE; 2534 ioc->events[idx].eventContext = ioc->eventContext; 2535 2536 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) | 2537 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) | 2538 (sc->device->channel << 8) | sc->device->id; 2539 2540 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12]; 2541 2542 ioc->eventContext++; 2543 if (ioc->pcidev->vendor == 2544 PCI_VENDOR_ID_IBM) { 2545 mptscsih_issue_sep_command(ioc, 2546 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT); 2547 vdevice->vtarget->tflags |= 2548 MPT_TARGET_FLAGS_LED_ON; 2549 } 2550 } 2551 } 2552 } else { 2553 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n", 2554 ioc->name)); 2555 } 2556 } 2557 2558 /** 2559 * mptscsih_get_scsi_lookup - retrieves scmd entry 2560 * @ioc: Pointer to MPT_ADAPTER structure 2561 * @i: index into the array 2562 * 2563 * Returns the scsi_cmd pointer 2564 */ 2565 struct scsi_cmnd * 2566 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i) 2567 { 2568 unsigned long flags; 2569 struct scsi_cmnd *scmd; 2570 2571 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2572 scmd = ioc->ScsiLookup[i]; 2573 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2574 2575 return scmd; 2576 } 2577 EXPORT_SYMBOL(mptscsih_get_scsi_lookup); 2578 2579 /** 2580 * mptscsih_getclear_scsi_lookup - retrieves and clears scmd entry from ScsiLookup[] array list 2581 * @ioc: Pointer to MPT_ADAPTER structure 2582 * @i: index into the array 2583 * 2584 * Returns the scsi_cmd pointer 2585 * 2586 **/ 2587 static struct scsi_cmnd * 2588 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i) 2589 { 2590 unsigned long flags; 2591 struct scsi_cmnd *scmd; 2592 2593 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2594 scmd = ioc->ScsiLookup[i]; 2595 ioc->ScsiLookup[i] = NULL; 2596 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2597 2598 return scmd; 2599 } 2600 2601 /** 2602 * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list 2603 * 2604 * @ioc: Pointer to MPT_ADAPTER structure 2605 * @i: index into the array 2606 * @scmd: scsi_cmnd pointer 2607 * 2608 **/ 2609 static void 2610 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd) 2611 { 2612 unsigned long flags; 2613 2614 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2615 ioc->ScsiLookup[i] = scmd; 2616 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2617 } 2618 2619 /** 2620 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list 2621 * @ioc: Pointer to MPT_ADAPTER structure 2622 * @sc: scsi_cmnd pointer 2623 */ 2624 static int 2625 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc) 2626 { 2627 unsigned long flags; 2628 int i, index=-1; 2629 2630 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2631 for (i = 0; i < ioc->req_depth; i++) { 2632 if (ioc->ScsiLookup[i] == sc) { 2633 index = i; 2634 goto out; 2635 } 2636 } 2637 2638 out: 2639 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2640 return index; 2641 } 2642 2643 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2644 int 2645 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 2646 { 2647 MPT_SCSI_HOST *hd; 2648 2649 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL) 2650 return 0; 2651 2652 hd = shost_priv(ioc->sh); 2653 switch (reset_phase) { 2654 case MPT_IOC_SETUP_RESET: 2655 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2656 "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__)); 2657 break; 2658 case MPT_IOC_PRE_RESET: 2659 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2660 "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__)); 2661 mptscsih_flush_running_cmds(hd); 2662 break; 2663 case MPT_IOC_POST_RESET: 2664 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2665 "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__)); 2666 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) { 2667 ioc->internal_cmds.status |= 2668 MPT_MGMT_STATUS_DID_IOCRESET; 2669 complete(&ioc->internal_cmds.done); 2670 } 2671 break; 2672 default: 2673 break; 2674 } 2675 return 1; /* currently means nothing really */ 2676 } 2677 2678 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2679 int 2680 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 2681 { 2682 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 2683 2684 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2685 "MPT event (=%02Xh) routed to SCSI host driver!\n", 2686 ioc->name, event)); 2687 2688 if ((event == MPI_EVENT_IOC_BUS_RESET || 2689 event == MPI_EVENT_EXT_BUS_RESET) && 2690 (ioc->bus_type == SPI) && (ioc->soft_resets < -1)) 2691 ioc->soft_resets++; 2692 2693 return 1; /* currently means nothing really */ 2694 } 2695 2696 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2697 /* 2698 * Bus Scan and Domain Validation functionality ... 2699 */ 2700 2701 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2702 /* 2703 * mptscsih_scandv_complete - Scan and DV callback routine registered 2704 * to Fustion MPT (base) driver. 2705 * 2706 * @ioc: Pointer to MPT_ADAPTER structure 2707 * @mf: Pointer to original MPT request frame 2708 * @mr: Pointer to MPT reply frame (NULL if TurboReply) 2709 * 2710 * This routine is called from mpt.c::mpt_interrupt() at the completion 2711 * of any SCSI IO request. 2712 * This routine is registered with the Fusion MPT (base) driver at driver 2713 * load/init time via the mpt_register() API call. 2714 * 2715 * Returns 1 indicating alloc'd request frame ptr should be freed. 2716 * 2717 * Remark: Sets a completion code and (possibly) saves sense data 2718 * in the IOC member localReply structure. 2719 * Used ONLY for DV and other internal commands. 2720 */ 2721 int 2722 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, 2723 MPT_FRAME_HDR *reply) 2724 { 2725 SCSIIORequest_t *pReq; 2726 SCSIIOReply_t *pReply; 2727 u8 cmd; 2728 u16 req_idx; 2729 u8 *sense_data; 2730 int sz; 2731 2732 ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD; 2733 ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD; 2734 if (!reply) 2735 goto out; 2736 2737 pReply = (SCSIIOReply_t *) reply; 2738 pReq = (SCSIIORequest_t *) req; 2739 ioc->internal_cmds.completion_code = 2740 mptscsih_get_completion_code(ioc, req, reply); 2741 ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID; 2742 memcpy(ioc->internal_cmds.reply, reply, 2743 min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength)); 2744 cmd = reply->u.hdr.Function; 2745 if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) || 2746 (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) && 2747 (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) { 2748 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx); 2749 sense_data = ((u8 *)ioc->sense_buf_pool + 2750 (req_idx * MPT_SENSE_BUFFER_ALLOC)); 2751 sz = min_t(int, pReq->SenseBufferLength, 2752 MPT_SENSE_BUFFER_ALLOC); 2753 memcpy(ioc->internal_cmds.sense, sense_data, sz); 2754 } 2755 out: 2756 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING)) 2757 return 0; 2758 ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING; 2759 complete(&ioc->internal_cmds.done); 2760 return 1; 2761 } 2762 2763 2764 /** 2765 * mptscsih_get_completion_code - get completion code from MPT request 2766 * @ioc: Pointer to MPT_ADAPTER structure 2767 * @req: Pointer to original MPT request frame 2768 * @reply: Pointer to MPT reply frame (NULL if TurboReply) 2769 * 2770 **/ 2771 static int 2772 mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, 2773 MPT_FRAME_HDR *reply) 2774 { 2775 SCSIIOReply_t *pReply; 2776 MpiRaidActionReply_t *pr; 2777 u8 scsi_status; 2778 u16 status; 2779 int completion_code; 2780 2781 pReply = (SCSIIOReply_t *)reply; 2782 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK; 2783 scsi_status = pReply->SCSIStatus; 2784 2785 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2786 "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh," 2787 "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState, 2788 scsi_status, le32_to_cpu(pReply->IOCLogInfo))); 2789 2790 switch (status) { 2791 2792 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */ 2793 completion_code = MPT_SCANDV_SELECTION_TIMEOUT; 2794 break; 2795 2796 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */ 2797 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */ 2798 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */ 2799 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */ 2800 completion_code = MPT_SCANDV_DID_RESET; 2801 break; 2802 2803 case MPI_IOCSTATUS_BUSY: 2804 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES: 2805 completion_code = MPT_SCANDV_BUSY; 2806 break; 2807 2808 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */ 2809 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */ 2810 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */ 2811 if (pReply->Function == MPI_FUNCTION_CONFIG) { 2812 completion_code = MPT_SCANDV_GOOD; 2813 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) { 2814 pr = (MpiRaidActionReply_t *)reply; 2815 if (le16_to_cpu(pr->ActionStatus) == 2816 MPI_RAID_ACTION_ASTATUS_SUCCESS) 2817 completion_code = MPT_SCANDV_GOOD; 2818 else 2819 completion_code = MPT_SCANDV_SOME_ERROR; 2820 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) 2821 completion_code = MPT_SCANDV_SENSE; 2822 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) { 2823 if (req->u.scsireq.CDB[0] == INQUIRY) 2824 completion_code = MPT_SCANDV_ISSUE_SENSE; 2825 else 2826 completion_code = MPT_SCANDV_DID_RESET; 2827 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS) 2828 completion_code = MPT_SCANDV_DID_RESET; 2829 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED) 2830 completion_code = MPT_SCANDV_DID_RESET; 2831 else if (scsi_status == MPI_SCSI_STATUS_BUSY) 2832 completion_code = MPT_SCANDV_BUSY; 2833 else 2834 completion_code = MPT_SCANDV_GOOD; 2835 break; 2836 2837 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */ 2838 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED) 2839 completion_code = MPT_SCANDV_DID_RESET; 2840 else 2841 completion_code = MPT_SCANDV_SOME_ERROR; 2842 break; 2843 default: 2844 completion_code = MPT_SCANDV_SOME_ERROR; 2845 break; 2846 2847 } /* switch(status) */ 2848 2849 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2850 " completionCode set to %08xh\n", ioc->name, completion_code)); 2851 return completion_code; 2852 } 2853 2854 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2855 /** 2856 * mptscsih_do_cmd - Do internal command. 2857 * @hd: MPT_SCSI_HOST pointer 2858 * @io: INTERNAL_CMD pointer. 2859 * 2860 * Issue the specified internally generated command and do command 2861 * specific cleanup. For bus scan / DV only. 2862 * NOTES: If command is Inquiry and status is good, 2863 * initialize a target structure, save the data 2864 * 2865 * Remark: Single threaded access only. 2866 * 2867 * Return: 2868 * < 0 if an illegal command or no resources 2869 * 2870 * 0 if good 2871 * 2872 * > 0 if command complete but some type of completion error. 2873 */ 2874 static int 2875 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io) 2876 { 2877 MPT_FRAME_HDR *mf; 2878 SCSIIORequest_t *pScsiReq; 2879 int my_idx, ii, dir; 2880 int timeout; 2881 char cmdLen; 2882 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; 2883 u8 cmd = io->cmd; 2884 MPT_ADAPTER *ioc = hd->ioc; 2885 int ret = 0; 2886 unsigned long timeleft; 2887 unsigned long flags; 2888 2889 /* don't send internal command during diag reset */ 2890 spin_lock_irqsave(&ioc->taskmgmt_lock, flags); 2891 if (ioc->ioc_reset_in_progress) { 2892 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); 2893 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2894 "%s: busy with host reset\n", ioc->name, __func__)); 2895 return MPT_SCANDV_BUSY; 2896 } 2897 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); 2898 2899 mutex_lock(&ioc->internal_cmds.mutex); 2900 2901 /* Set command specific information 2902 */ 2903 switch (cmd) { 2904 case INQUIRY: 2905 cmdLen = 6; 2906 dir = MPI_SCSIIO_CONTROL_READ; 2907 CDB[0] = cmd; 2908 CDB[4] = io->size; 2909 timeout = 10; 2910 break; 2911 2912 case TEST_UNIT_READY: 2913 cmdLen = 6; 2914 dir = MPI_SCSIIO_CONTROL_READ; 2915 timeout = 10; 2916 break; 2917 2918 case START_STOP: 2919 cmdLen = 6; 2920 dir = MPI_SCSIIO_CONTROL_READ; 2921 CDB[0] = cmd; 2922 CDB[4] = 1; /*Spin up the disk */ 2923 timeout = 15; 2924 break; 2925 2926 case REQUEST_SENSE: 2927 cmdLen = 6; 2928 CDB[0] = cmd; 2929 CDB[4] = io->size; 2930 dir = MPI_SCSIIO_CONTROL_READ; 2931 timeout = 10; 2932 break; 2933 2934 case READ_BUFFER: 2935 cmdLen = 10; 2936 dir = MPI_SCSIIO_CONTROL_READ; 2937 CDB[0] = cmd; 2938 if (io->flags & MPT_ICFLAG_ECHO) { 2939 CDB[1] = 0x0A; 2940 } else { 2941 CDB[1] = 0x02; 2942 } 2943 2944 if (io->flags & MPT_ICFLAG_BUF_CAP) { 2945 CDB[1] |= 0x01; 2946 } 2947 CDB[6] = (io->size >> 16) & 0xFF; 2948 CDB[7] = (io->size >> 8) & 0xFF; 2949 CDB[8] = io->size & 0xFF; 2950 timeout = 10; 2951 break; 2952 2953 case WRITE_BUFFER: 2954 cmdLen = 10; 2955 dir = MPI_SCSIIO_CONTROL_WRITE; 2956 CDB[0] = cmd; 2957 if (io->flags & MPT_ICFLAG_ECHO) { 2958 CDB[1] = 0x0A; 2959 } else { 2960 CDB[1] = 0x02; 2961 } 2962 CDB[6] = (io->size >> 16) & 0xFF; 2963 CDB[7] = (io->size >> 8) & 0xFF; 2964 CDB[8] = io->size & 0xFF; 2965 timeout = 10; 2966 break; 2967 2968 case RESERVE: 2969 cmdLen = 6; 2970 dir = MPI_SCSIIO_CONTROL_READ; 2971 CDB[0] = cmd; 2972 timeout = 10; 2973 break; 2974 2975 case RELEASE: 2976 cmdLen = 6; 2977 dir = MPI_SCSIIO_CONTROL_READ; 2978 CDB[0] = cmd; 2979 timeout = 10; 2980 break; 2981 2982 case SYNCHRONIZE_CACHE: 2983 cmdLen = 10; 2984 dir = MPI_SCSIIO_CONTROL_READ; 2985 CDB[0] = cmd; 2986 // CDB[1] = 0x02; /* set immediate bit */ 2987 timeout = 10; 2988 break; 2989 2990 default: 2991 /* Error Case */ 2992 ret = -EFAULT; 2993 goto out; 2994 } 2995 2996 /* Get and Populate a free Frame 2997 * MsgContext set in mpt_get_msg_frame call 2998 */ 2999 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) { 3000 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n", 3001 ioc->name, __func__)); 3002 ret = MPT_SCANDV_BUSY; 3003 goto out; 3004 } 3005 3006 pScsiReq = (SCSIIORequest_t *) mf; 3007 3008 /* Get the request index */ 3009 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 3010 ADD_INDEX_LOG(my_idx); /* for debug */ 3011 3012 if (io->flags & MPT_ICFLAG_PHYS_DISK) { 3013 pScsiReq->TargetID = io->physDiskNum; 3014 pScsiReq->Bus = 0; 3015 pScsiReq->ChainOffset = 0; 3016 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH; 3017 } else { 3018 pScsiReq->TargetID = io->id; 3019 pScsiReq->Bus = io->channel; 3020 pScsiReq->ChainOffset = 0; 3021 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST; 3022 } 3023 3024 pScsiReq->CDBLength = cmdLen; 3025 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE; 3026 3027 pScsiReq->Reserved = 0; 3028 3029 pScsiReq->MsgFlags = mpt_msg_flags(ioc); 3030 /* MsgContext set in mpt_get_msg_fram call */ 3031 3032 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN); 3033 3034 if (io->flags & MPT_ICFLAG_TAGGED_CMD) 3035 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ); 3036 else 3037 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED); 3038 3039 if (cmd == REQUEST_SENSE) { 3040 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED); 3041 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 3042 "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd)); 3043 } 3044 3045 for (ii = 0; ii < 16; ii++) 3046 pScsiReq->CDB[ii] = CDB[ii]; 3047 3048 pScsiReq->DataLength = cpu_to_le32(io->size); 3049 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma 3050 + (my_idx * MPT_SENSE_BUFFER_ALLOC)); 3051 3052 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 3053 "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%d\n", 3054 ioc->name, __func__, cmd, io->channel, io->id, io->lun)); 3055 3056 if (dir == MPI_SCSIIO_CONTROL_READ) 3057 ioc->add_sge((char *) &pScsiReq->SGL, 3058 MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma); 3059 else 3060 ioc->add_sge((char *) &pScsiReq->SGL, 3061 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma); 3062 3063 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status) 3064 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf); 3065 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done, 3066 timeout*HZ); 3067 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) { 3068 ret = MPT_SCANDV_DID_RESET; 3069 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT 3070 "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__, 3071 cmd)); 3072 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) { 3073 mpt_free_msg_frame(ioc, mf); 3074 goto out; 3075 } 3076 if (!timeleft) { 3077 printk(MYIOC_s_WARN_FMT 3078 "Issuing Reset from %s!! doorbell=0x%08xh" 3079 " cmd=0x%02x\n", 3080 ioc->name, __func__, mpt_GetIocState(ioc, 0), 3081 cmd); 3082 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); 3083 mpt_free_msg_frame(ioc, mf); 3084 } 3085 goto out; 3086 } 3087 3088 ret = ioc->internal_cmds.completion_code; 3089 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n", 3090 ioc->name, __func__, ret)); 3091 3092 out: 3093 CLEAR_MGMT_STATUS(ioc->internal_cmds.status) 3094 mutex_unlock(&ioc->internal_cmds.mutex); 3095 return ret; 3096 } 3097 3098 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 3099 /** 3100 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks. 3101 * @hd: Pointer to a SCSI HOST structure 3102 * @vdevice: virtual target device 3103 * 3104 * Uses the ISR, but with special processing. 3105 * MUST be single-threaded. 3106 * 3107 */ 3108 static void 3109 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice) 3110 { 3111 INTERNAL_CMD iocmd; 3112 3113 /* Ignore hidden raid components, this is handled when the command 3114 * is sent to the volume 3115 */ 3116 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) 3117 return; 3118 3119 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted || 3120 !vdevice->configured_lun) 3121 return; 3122 3123 /* Following parameters will not change 3124 * in this routine. 3125 */ 3126 iocmd.cmd = SYNCHRONIZE_CACHE; 3127 iocmd.flags = 0; 3128 iocmd.physDiskNum = -1; 3129 iocmd.data = NULL; 3130 iocmd.data_dma = -1; 3131 iocmd.size = 0; 3132 iocmd.rsvd = iocmd.rsvd2 = 0; 3133 iocmd.channel = vdevice->vtarget->channel; 3134 iocmd.id = vdevice->vtarget->id; 3135 iocmd.lun = vdevice->lun; 3136 3137 mptscsih_do_cmd(hd, &iocmd); 3138 } 3139 3140 static ssize_t 3141 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr, 3142 char *buf) 3143 { 3144 struct Scsi_Host *host = class_to_shost(dev); 3145 MPT_SCSI_HOST *hd = shost_priv(host); 3146 MPT_ADAPTER *ioc = hd->ioc; 3147 3148 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", 3149 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, 3150 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, 3151 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, 3152 ioc->facts.FWVersion.Word & 0x000000FF); 3153 } 3154 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL); 3155 3156 static ssize_t 3157 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr, 3158 char *buf) 3159 { 3160 struct Scsi_Host *host = class_to_shost(dev); 3161 MPT_SCSI_HOST *hd = shost_priv(host); 3162 MPT_ADAPTER *ioc = hd->ioc; 3163 3164 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 3165 (ioc->biosVersion & 0xFF000000) >> 24, 3166 (ioc->biosVersion & 0x00FF0000) >> 16, 3167 (ioc->biosVersion & 0x0000FF00) >> 8, 3168 ioc->biosVersion & 0x000000FF); 3169 } 3170 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL); 3171 3172 static ssize_t 3173 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr, 3174 char *buf) 3175 { 3176 struct Scsi_Host *host = class_to_shost(dev); 3177 MPT_SCSI_HOST *hd = shost_priv(host); 3178 MPT_ADAPTER *ioc = hd->ioc; 3179 3180 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion); 3181 } 3182 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL); 3183 3184 static ssize_t 3185 mptscsih_version_product_show(struct device *dev, 3186 struct device_attribute *attr, 3187 char *buf) 3188 { 3189 struct Scsi_Host *host = class_to_shost(dev); 3190 MPT_SCSI_HOST *hd = shost_priv(host); 3191 MPT_ADAPTER *ioc = hd->ioc; 3192 3193 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name); 3194 } 3195 static DEVICE_ATTR(version_product, S_IRUGO, 3196 mptscsih_version_product_show, NULL); 3197 3198 static ssize_t 3199 mptscsih_version_nvdata_persistent_show(struct device *dev, 3200 struct device_attribute *attr, 3201 char *buf) 3202 { 3203 struct Scsi_Host *host = class_to_shost(dev); 3204 MPT_SCSI_HOST *hd = shost_priv(host); 3205 MPT_ADAPTER *ioc = hd->ioc; 3206 3207 return snprintf(buf, PAGE_SIZE, "%02xh\n", 3208 ioc->nvdata_version_persistent); 3209 } 3210 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO, 3211 mptscsih_version_nvdata_persistent_show, NULL); 3212 3213 static ssize_t 3214 mptscsih_version_nvdata_default_show(struct device *dev, 3215 struct device_attribute *attr, char *buf) 3216 { 3217 struct Scsi_Host *host = class_to_shost(dev); 3218 MPT_SCSI_HOST *hd = shost_priv(host); 3219 MPT_ADAPTER *ioc = hd->ioc; 3220 3221 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default); 3222 } 3223 static DEVICE_ATTR(version_nvdata_default, S_IRUGO, 3224 mptscsih_version_nvdata_default_show, NULL); 3225 3226 static ssize_t 3227 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr, 3228 char *buf) 3229 { 3230 struct Scsi_Host *host = class_to_shost(dev); 3231 MPT_SCSI_HOST *hd = shost_priv(host); 3232 MPT_ADAPTER *ioc = hd->ioc; 3233 3234 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name); 3235 } 3236 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL); 3237 3238 static ssize_t 3239 mptscsih_board_assembly_show(struct device *dev, 3240 struct device_attribute *attr, char *buf) 3241 { 3242 struct Scsi_Host *host = class_to_shost(dev); 3243 MPT_SCSI_HOST *hd = shost_priv(host); 3244 MPT_ADAPTER *ioc = hd->ioc; 3245 3246 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly); 3247 } 3248 static DEVICE_ATTR(board_assembly, S_IRUGO, 3249 mptscsih_board_assembly_show, NULL); 3250 3251 static ssize_t 3252 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr, 3253 char *buf) 3254 { 3255 struct Scsi_Host *host = class_to_shost(dev); 3256 MPT_SCSI_HOST *hd = shost_priv(host); 3257 MPT_ADAPTER *ioc = hd->ioc; 3258 3259 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer); 3260 } 3261 static DEVICE_ATTR(board_tracer, S_IRUGO, 3262 mptscsih_board_tracer_show, NULL); 3263 3264 static ssize_t 3265 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr, 3266 char *buf) 3267 { 3268 struct Scsi_Host *host = class_to_shost(dev); 3269 MPT_SCSI_HOST *hd = shost_priv(host); 3270 MPT_ADAPTER *ioc = hd->ioc; 3271 3272 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay); 3273 } 3274 static DEVICE_ATTR(io_delay, S_IRUGO, 3275 mptscsih_io_delay_show, NULL); 3276 3277 static ssize_t 3278 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr, 3279 char *buf) 3280 { 3281 struct Scsi_Host *host = class_to_shost(dev); 3282 MPT_SCSI_HOST *hd = shost_priv(host); 3283 MPT_ADAPTER *ioc = hd->ioc; 3284 3285 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay); 3286 } 3287 static DEVICE_ATTR(device_delay, S_IRUGO, 3288 mptscsih_device_delay_show, NULL); 3289 3290 static ssize_t 3291 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr, 3292 char *buf) 3293 { 3294 struct Scsi_Host *host = class_to_shost(dev); 3295 MPT_SCSI_HOST *hd = shost_priv(host); 3296 MPT_ADAPTER *ioc = hd->ioc; 3297 3298 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level); 3299 } 3300 static ssize_t 3301 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr, 3302 const char *buf, size_t count) 3303 { 3304 struct Scsi_Host *host = class_to_shost(dev); 3305 MPT_SCSI_HOST *hd = shost_priv(host); 3306 MPT_ADAPTER *ioc = hd->ioc; 3307 int val = 0; 3308 3309 if (sscanf(buf, "%x", &val) != 1) 3310 return -EINVAL; 3311 3312 ioc->debug_level = val; 3313 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n", 3314 ioc->name, ioc->debug_level); 3315 return strlen(buf); 3316 } 3317 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR, 3318 mptscsih_debug_level_show, mptscsih_debug_level_store); 3319 3320 struct device_attribute *mptscsih_host_attrs[] = { 3321 &dev_attr_version_fw, 3322 &dev_attr_version_bios, 3323 &dev_attr_version_mpi, 3324 &dev_attr_version_product, 3325 &dev_attr_version_nvdata_persistent, 3326 &dev_attr_version_nvdata_default, 3327 &dev_attr_board_name, 3328 &dev_attr_board_assembly, 3329 &dev_attr_board_tracer, 3330 &dev_attr_io_delay, 3331 &dev_attr_device_delay, 3332 &dev_attr_debug_level, 3333 NULL, 3334 }; 3335 3336 EXPORT_SYMBOL(mptscsih_host_attrs); 3337 3338 EXPORT_SYMBOL(mptscsih_remove); 3339 EXPORT_SYMBOL(mptscsih_shutdown); 3340 #ifdef CONFIG_PM 3341 EXPORT_SYMBOL(mptscsih_suspend); 3342 EXPORT_SYMBOL(mptscsih_resume); 3343 #endif 3344 EXPORT_SYMBOL(mptscsih_proc_info); 3345 EXPORT_SYMBOL(mptscsih_info); 3346 EXPORT_SYMBOL(mptscsih_qcmd); 3347 EXPORT_SYMBOL(mptscsih_slave_destroy); 3348 EXPORT_SYMBOL(mptscsih_slave_configure); 3349 EXPORT_SYMBOL(mptscsih_abort); 3350 EXPORT_SYMBOL(mptscsih_dev_reset); 3351 EXPORT_SYMBOL(mptscsih_bus_reset); 3352 EXPORT_SYMBOL(mptscsih_host_reset); 3353 EXPORT_SYMBOL(mptscsih_bios_param); 3354 EXPORT_SYMBOL(mptscsih_io_done); 3355 EXPORT_SYMBOL(mptscsih_taskmgmt_complete); 3356 EXPORT_SYMBOL(mptscsih_scandv_complete); 3357 EXPORT_SYMBOL(mptscsih_event_process); 3358 EXPORT_SYMBOL(mptscsih_ioc_reset); 3359 EXPORT_SYMBOL(mptscsih_change_queue_depth); 3360 3361 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 3362