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 (rv=%04x) (sc=%p) (sn=%ld)\n", 1877 ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval, 1878 SCpnt, SCpnt->serial_number); 1879 1880 return retval; 1881 } 1882 1883 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1884 /** 1885 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant 1886 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to 1887 * 1888 * (linux scsi_host_template.eh_dev_reset_handler routine) 1889 * 1890 * Returns SUCCESS or FAILED. 1891 **/ 1892 int 1893 mptscsih_dev_reset(struct scsi_cmnd * SCpnt) 1894 { 1895 MPT_SCSI_HOST *hd; 1896 int retval; 1897 VirtDevice *vdevice; 1898 MPT_ADAPTER *ioc; 1899 1900 /* If we can't locate our host adapter structure, return FAILED status. 1901 */ 1902 if ((hd = shost_priv(SCpnt->device->host)) == NULL){ 1903 printk(KERN_ERR MYNAM ": target reset: " 1904 "Can't locate host! (sc=%p)\n", SCpnt); 1905 return FAILED; 1906 } 1907 1908 ioc = hd->ioc; 1909 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n", 1910 ioc->name, SCpnt); 1911 scsi_print_command(SCpnt); 1912 1913 vdevice = SCpnt->device->hostdata; 1914 if (!vdevice || !vdevice->vtarget) { 1915 retval = 0; 1916 goto out; 1917 } 1918 1919 /* Target reset to hidden raid component is not supported 1920 */ 1921 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) { 1922 retval = FAILED; 1923 goto out; 1924 } 1925 1926 retval = mptscsih_IssueTaskMgmt(hd, 1927 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 1928 vdevice->vtarget->channel, 1929 vdevice->vtarget->id, 0, 0, 1930 mptscsih_get_tm_timeout(ioc)); 1931 1932 out: 1933 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n", 1934 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); 1935 1936 if (retval == 0) 1937 return SUCCESS; 1938 else 1939 return FAILED; 1940 } 1941 1942 1943 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1944 /** 1945 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant 1946 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to 1947 * 1948 * (linux scsi_host_template.eh_bus_reset_handler routine) 1949 * 1950 * Returns SUCCESS or FAILED. 1951 **/ 1952 int 1953 mptscsih_bus_reset(struct scsi_cmnd * SCpnt) 1954 { 1955 MPT_SCSI_HOST *hd; 1956 int retval; 1957 VirtDevice *vdevice; 1958 MPT_ADAPTER *ioc; 1959 1960 /* If we can't locate our host adapter structure, return FAILED status. 1961 */ 1962 if ((hd = shost_priv(SCpnt->device->host)) == NULL){ 1963 printk(KERN_ERR MYNAM ": bus reset: " 1964 "Can't locate host! (sc=%p)\n", SCpnt); 1965 return FAILED; 1966 } 1967 1968 ioc = hd->ioc; 1969 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n", 1970 ioc->name, SCpnt); 1971 scsi_print_command(SCpnt); 1972 1973 if (ioc->timeouts < -1) 1974 ioc->timeouts++; 1975 1976 vdevice = SCpnt->device->hostdata; 1977 if (!vdevice || !vdevice->vtarget) 1978 return SUCCESS; 1979 retval = mptscsih_IssueTaskMgmt(hd, 1980 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS, 1981 vdevice->vtarget->channel, 0, 0, 0, 1982 mptscsih_get_tm_timeout(ioc)); 1983 1984 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n", 1985 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); 1986 1987 if (retval == 0) 1988 return SUCCESS; 1989 else 1990 return FAILED; 1991 } 1992 1993 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1994 /** 1995 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant) 1996 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to 1997 * 1998 * (linux scsi_host_template.eh_host_reset_handler routine) 1999 * 2000 * Returns SUCCESS or FAILED. 2001 */ 2002 int 2003 mptscsih_host_reset(struct scsi_cmnd *SCpnt) 2004 { 2005 MPT_SCSI_HOST * hd; 2006 int status = SUCCESS; 2007 MPT_ADAPTER *ioc; 2008 int retval; 2009 2010 /* If we can't locate the host to reset, then we failed. */ 2011 if ((hd = shost_priv(SCpnt->device->host)) == NULL){ 2012 printk(KERN_ERR MYNAM ": host reset: " 2013 "Can't locate host! (sc=%p)\n", SCpnt); 2014 return FAILED; 2015 } 2016 2017 /* make sure we have no outstanding commands at this stage */ 2018 mptscsih_flush_running_cmds(hd); 2019 2020 ioc = hd->ioc; 2021 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n", 2022 ioc->name, SCpnt); 2023 2024 /* If our attempts to reset the host failed, then return a failed 2025 * status. The host will be taken off line by the SCSI mid-layer. 2026 */ 2027 retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); 2028 if (retval < 0) 2029 status = FAILED; 2030 else 2031 status = SUCCESS; 2032 2033 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n", 2034 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); 2035 2036 return status; 2037 } 2038 2039 static int 2040 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type, 2041 SCSITaskMgmtReply_t *pScsiTmReply) 2042 { 2043 u16 iocstatus; 2044 u32 termination_count; 2045 int retval; 2046 2047 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) { 2048 retval = FAILED; 2049 goto out; 2050 } 2051 2052 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply); 2053 2054 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK; 2055 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount); 2056 2057 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2058 "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n" 2059 "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n" 2060 "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus, 2061 pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus), 2062 le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode, 2063 termination_count)); 2064 2065 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 && 2066 pScsiTmReply->ResponseCode) 2067 mptscsih_taskmgmt_response_code(ioc, 2068 pScsiTmReply->ResponseCode); 2069 2070 if (iocstatus == MPI_IOCSTATUS_SUCCESS) { 2071 retval = 0; 2072 goto out; 2073 } 2074 2075 retval = FAILED; 2076 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) { 2077 if (termination_count == 1) 2078 retval = 0; 2079 goto out; 2080 } 2081 2082 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED || 2083 iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED) 2084 retval = 0; 2085 2086 out: 2087 return retval; 2088 } 2089 2090 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2091 void 2092 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code) 2093 { 2094 char *desc; 2095 2096 switch (response_code) { 2097 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE: 2098 desc = "The task completed."; 2099 break; 2100 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME: 2101 desc = "The IOC received an invalid frame status."; 2102 break; 2103 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED: 2104 desc = "The task type is not supported."; 2105 break; 2106 case MPI_SCSITASKMGMT_RSP_TM_FAILED: 2107 desc = "The requested task failed."; 2108 break; 2109 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED: 2110 desc = "The task completed successfully."; 2111 break; 2112 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN: 2113 desc = "The LUN request is invalid."; 2114 break; 2115 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC: 2116 desc = "The task is in the IOC queue and has not been sent to target."; 2117 break; 2118 default: 2119 desc = "unknown"; 2120 break; 2121 } 2122 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n", 2123 ioc->name, response_code, desc); 2124 } 2125 EXPORT_SYMBOL(mptscsih_taskmgmt_response_code); 2126 2127 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2128 /** 2129 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver 2130 * @ioc: Pointer to MPT_ADAPTER structure 2131 * @mf: Pointer to SCSI task mgmt request frame 2132 * @mr: Pointer to SCSI task mgmt reply frame 2133 * 2134 * This routine is called from mptbase.c::mpt_interrupt() at the completion 2135 * of any SCSI task management request. 2136 * This routine is registered with the MPT (base) driver at driver 2137 * load/init time via the mpt_register() API call. 2138 * 2139 * Returns 1 indicating alloc'd request frame ptr should be freed. 2140 **/ 2141 int 2142 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, 2143 MPT_FRAME_HDR *mr) 2144 { 2145 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2146 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr)); 2147 2148 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD; 2149 2150 if (!mr) 2151 goto out; 2152 2153 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID; 2154 memcpy(ioc->taskmgmt_cmds.reply, mr, 2155 min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength)); 2156 out: 2157 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) { 2158 mpt_clear_taskmgmt_in_progress_flag(ioc); 2159 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING; 2160 complete(&ioc->taskmgmt_cmds.done); 2161 if (ioc->bus_type == SAS) 2162 ioc->schedule_target_reset(ioc); 2163 return 1; 2164 } 2165 return 0; 2166 } 2167 2168 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2169 /* 2170 * This is anyones guess quite frankly. 2171 */ 2172 int 2173 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev, 2174 sector_t capacity, int geom[]) 2175 { 2176 int heads; 2177 int sectors; 2178 sector_t cylinders; 2179 ulong dummy; 2180 2181 heads = 64; 2182 sectors = 32; 2183 2184 dummy = heads * sectors; 2185 cylinders = capacity; 2186 sector_div(cylinders,dummy); 2187 2188 /* 2189 * Handle extended translation size for logical drives 2190 * > 1Gb 2191 */ 2192 if ((ulong)capacity >= 0x200000) { 2193 heads = 255; 2194 sectors = 63; 2195 dummy = heads * sectors; 2196 cylinders = capacity; 2197 sector_div(cylinders,dummy); 2198 } 2199 2200 /* return result */ 2201 geom[0] = heads; 2202 geom[1] = sectors; 2203 geom[2] = cylinders; 2204 2205 return 0; 2206 } 2207 2208 /* Search IOC page 3 to determine if this is hidden physical disk 2209 * 2210 */ 2211 int 2212 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id) 2213 { 2214 struct inactive_raid_component_info *component_info; 2215 int i, j; 2216 RaidPhysDiskPage1_t *phys_disk; 2217 int rc = 0; 2218 int num_paths; 2219 2220 if (!ioc->raid_data.pIocPg3) 2221 goto out; 2222 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2223 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) && 2224 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) { 2225 rc = 1; 2226 goto out; 2227 } 2228 } 2229 2230 if (ioc->bus_type != SAS) 2231 goto out; 2232 2233 /* 2234 * Check if dual path 2235 */ 2236 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2237 num_paths = mpt_raid_phys_disk_get_num_paths(ioc, 2238 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum); 2239 if (num_paths < 2) 2240 continue; 2241 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) + 2242 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL); 2243 if (!phys_disk) 2244 continue; 2245 if ((mpt_raid_phys_disk_pg1(ioc, 2246 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum, 2247 phys_disk))) { 2248 kfree(phys_disk); 2249 continue; 2250 } 2251 for (j = 0; j < num_paths; j++) { 2252 if ((phys_disk->Path[j].Flags & 2253 MPI_RAID_PHYSDISK1_FLAG_INVALID)) 2254 continue; 2255 if ((phys_disk->Path[j].Flags & 2256 MPI_RAID_PHYSDISK1_FLAG_BROKEN)) 2257 continue; 2258 if ((id == phys_disk->Path[j].PhysDiskID) && 2259 (channel == phys_disk->Path[j].PhysDiskBus)) { 2260 rc = 1; 2261 kfree(phys_disk); 2262 goto out; 2263 } 2264 } 2265 kfree(phys_disk); 2266 } 2267 2268 2269 /* 2270 * Check inactive list for matching phys disks 2271 */ 2272 if (list_empty(&ioc->raid_data.inactive_list)) 2273 goto out; 2274 2275 mutex_lock(&ioc->raid_data.inactive_list_mutex); 2276 list_for_each_entry(component_info, &ioc->raid_data.inactive_list, 2277 list) { 2278 if ((component_info->d.PhysDiskID == id) && 2279 (component_info->d.PhysDiskBus == channel)) 2280 rc = 1; 2281 } 2282 mutex_unlock(&ioc->raid_data.inactive_list_mutex); 2283 2284 out: 2285 return rc; 2286 } 2287 EXPORT_SYMBOL(mptscsih_is_phys_disk); 2288 2289 u8 2290 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id) 2291 { 2292 struct inactive_raid_component_info *component_info; 2293 int i, j; 2294 RaidPhysDiskPage1_t *phys_disk; 2295 int rc = -ENXIO; 2296 int num_paths; 2297 2298 if (!ioc->raid_data.pIocPg3) 2299 goto out; 2300 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2301 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) && 2302 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) { 2303 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum; 2304 goto out; 2305 } 2306 } 2307 2308 if (ioc->bus_type != SAS) 2309 goto out; 2310 2311 /* 2312 * Check if dual path 2313 */ 2314 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2315 num_paths = mpt_raid_phys_disk_get_num_paths(ioc, 2316 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum); 2317 if (num_paths < 2) 2318 continue; 2319 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) + 2320 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL); 2321 if (!phys_disk) 2322 continue; 2323 if ((mpt_raid_phys_disk_pg1(ioc, 2324 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum, 2325 phys_disk))) { 2326 kfree(phys_disk); 2327 continue; 2328 } 2329 for (j = 0; j < num_paths; j++) { 2330 if ((phys_disk->Path[j].Flags & 2331 MPI_RAID_PHYSDISK1_FLAG_INVALID)) 2332 continue; 2333 if ((phys_disk->Path[j].Flags & 2334 MPI_RAID_PHYSDISK1_FLAG_BROKEN)) 2335 continue; 2336 if ((id == phys_disk->Path[j].PhysDiskID) && 2337 (channel == phys_disk->Path[j].PhysDiskBus)) { 2338 rc = phys_disk->PhysDiskNum; 2339 kfree(phys_disk); 2340 goto out; 2341 } 2342 } 2343 kfree(phys_disk); 2344 } 2345 2346 /* 2347 * Check inactive list for matching phys disks 2348 */ 2349 if (list_empty(&ioc->raid_data.inactive_list)) 2350 goto out; 2351 2352 mutex_lock(&ioc->raid_data.inactive_list_mutex); 2353 list_for_each_entry(component_info, &ioc->raid_data.inactive_list, 2354 list) { 2355 if ((component_info->d.PhysDiskID == id) && 2356 (component_info->d.PhysDiskBus == channel)) 2357 rc = component_info->d.PhysDiskNum; 2358 } 2359 mutex_unlock(&ioc->raid_data.inactive_list_mutex); 2360 2361 out: 2362 return rc; 2363 } 2364 EXPORT_SYMBOL(mptscsih_raid_id_to_num); 2365 2366 /* 2367 * OS entry point to allow for host driver to free allocated memory 2368 * Called if no device present or device being unloaded 2369 */ 2370 void 2371 mptscsih_slave_destroy(struct scsi_device *sdev) 2372 { 2373 struct Scsi_Host *host = sdev->host; 2374 MPT_SCSI_HOST *hd = shost_priv(host); 2375 VirtTarget *vtarget; 2376 VirtDevice *vdevice; 2377 struct scsi_target *starget; 2378 2379 starget = scsi_target(sdev); 2380 vtarget = starget->hostdata; 2381 vdevice = sdev->hostdata; 2382 if (!vdevice) 2383 return; 2384 2385 mptscsih_search_running_cmds(hd, vdevice); 2386 vtarget->num_luns--; 2387 mptscsih_synchronize_cache(hd, vdevice); 2388 kfree(vdevice); 2389 sdev->hostdata = NULL; 2390 } 2391 2392 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2393 /* 2394 * mptscsih_change_queue_depth - This function will set a devices queue depth 2395 * @sdev: per scsi_device pointer 2396 * @qdepth: requested queue depth 2397 * @reason: calling context 2398 * 2399 * Adding support for new 'change_queue_depth' api. 2400 */ 2401 int 2402 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) 2403 { 2404 MPT_SCSI_HOST *hd = shost_priv(sdev->host); 2405 VirtTarget *vtarget; 2406 struct scsi_target *starget; 2407 int max_depth; 2408 int tagged; 2409 MPT_ADAPTER *ioc = hd->ioc; 2410 2411 starget = scsi_target(sdev); 2412 vtarget = starget->hostdata; 2413 2414 if (reason != SCSI_QDEPTH_DEFAULT) 2415 return -EOPNOTSUPP; 2416 2417 if (ioc->bus_type == SPI) { 2418 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)) 2419 max_depth = 1; 2420 else if (sdev->type == TYPE_DISK && 2421 vtarget->minSyncFactor <= MPT_ULTRA160) 2422 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH; 2423 else 2424 max_depth = MPT_SCSI_CMD_PER_DEV_LOW; 2425 } else 2426 max_depth = ioc->sh->can_queue; 2427 2428 if (!sdev->tagged_supported) 2429 max_depth = 1; 2430 2431 if (qdepth > max_depth) 2432 qdepth = max_depth; 2433 if (qdepth == 1) 2434 tagged = 0; 2435 else 2436 tagged = MSG_SIMPLE_TAG; 2437 2438 scsi_adjust_queue_depth(sdev, tagged, qdepth); 2439 return sdev->queue_depth; 2440 } 2441 2442 /* 2443 * OS entry point to adjust the queue_depths on a per-device basis. 2444 * Called once per device the bus scan. Use it to force the queue_depth 2445 * member to 1 if a device does not support Q tags. 2446 * Return non-zero if fails. 2447 */ 2448 int 2449 mptscsih_slave_configure(struct scsi_device *sdev) 2450 { 2451 struct Scsi_Host *sh = sdev->host; 2452 VirtTarget *vtarget; 2453 VirtDevice *vdevice; 2454 struct scsi_target *starget; 2455 MPT_SCSI_HOST *hd = shost_priv(sh); 2456 MPT_ADAPTER *ioc = hd->ioc; 2457 2458 starget = scsi_target(sdev); 2459 vtarget = starget->hostdata; 2460 vdevice = sdev->hostdata; 2461 2462 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2463 "device @ %p, channel=%d, id=%d, lun=%d\n", 2464 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun)); 2465 if (ioc->bus_type == SPI) 2466 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2467 "sdtr %d wdtr %d ppr %d inq length=%d\n", 2468 ioc->name, sdev->sdtr, sdev->wdtr, 2469 sdev->ppr, sdev->inquiry_len)); 2470 2471 vdevice->configured_lun = 1; 2472 2473 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2474 "Queue depth=%d, tflags=%x\n", 2475 ioc->name, sdev->queue_depth, vtarget->tflags)); 2476 2477 if (ioc->bus_type == SPI) 2478 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2479 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n", 2480 ioc->name, vtarget->negoFlags, vtarget->maxOffset, 2481 vtarget->minSyncFactor)); 2482 2483 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH, 2484 SCSI_QDEPTH_DEFAULT); 2485 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2486 "tagged %d, simple %d, ordered %d\n", 2487 ioc->name,sdev->tagged_supported, sdev->simple_tags, 2488 sdev->ordered_tags)); 2489 2490 blk_queue_dma_alignment (sdev->request_queue, 512 - 1); 2491 2492 return 0; 2493 } 2494 2495 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2496 /* 2497 * Private routines... 2498 */ 2499 2500 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2501 /* Utility function to copy sense data from the scsi_cmnd buffer 2502 * to the FC and SCSI target structures. 2503 * 2504 */ 2505 static void 2506 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply) 2507 { 2508 VirtDevice *vdevice; 2509 SCSIIORequest_t *pReq; 2510 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount); 2511 MPT_ADAPTER *ioc = hd->ioc; 2512 2513 /* Get target structure 2514 */ 2515 pReq = (SCSIIORequest_t *) mf; 2516 vdevice = sc->device->hostdata; 2517 2518 if (sense_count) { 2519 u8 *sense_data; 2520 int req_index; 2521 2522 /* Copy the sense received into the scsi command block. */ 2523 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 2524 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC)); 2525 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc)); 2526 2527 /* Log SMART data (asc = 0x5D, non-IM case only) if required. 2528 */ 2529 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) { 2530 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) { 2531 int idx; 2532 2533 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE; 2534 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE; 2535 ioc->events[idx].eventContext = ioc->eventContext; 2536 2537 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) | 2538 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) | 2539 (sc->device->channel << 8) | sc->device->id; 2540 2541 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12]; 2542 2543 ioc->eventContext++; 2544 if (ioc->pcidev->vendor == 2545 PCI_VENDOR_ID_IBM) { 2546 mptscsih_issue_sep_command(ioc, 2547 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT); 2548 vdevice->vtarget->tflags |= 2549 MPT_TARGET_FLAGS_LED_ON; 2550 } 2551 } 2552 } 2553 } else { 2554 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n", 2555 ioc->name)); 2556 } 2557 } 2558 2559 /** 2560 * mptscsih_get_scsi_lookup - retrieves scmd entry 2561 * @ioc: Pointer to MPT_ADAPTER structure 2562 * @i: index into the array 2563 * 2564 * Returns the scsi_cmd pointer 2565 */ 2566 struct scsi_cmnd * 2567 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i) 2568 { 2569 unsigned long flags; 2570 struct scsi_cmnd *scmd; 2571 2572 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2573 scmd = ioc->ScsiLookup[i]; 2574 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2575 2576 return scmd; 2577 } 2578 EXPORT_SYMBOL(mptscsih_get_scsi_lookup); 2579 2580 /** 2581 * mptscsih_getclear_scsi_lookup - retrieves and clears scmd entry from ScsiLookup[] array list 2582 * @ioc: Pointer to MPT_ADAPTER structure 2583 * @i: index into the array 2584 * 2585 * Returns the scsi_cmd pointer 2586 * 2587 **/ 2588 static struct scsi_cmnd * 2589 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i) 2590 { 2591 unsigned long flags; 2592 struct scsi_cmnd *scmd; 2593 2594 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2595 scmd = ioc->ScsiLookup[i]; 2596 ioc->ScsiLookup[i] = NULL; 2597 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2598 2599 return scmd; 2600 } 2601 2602 /** 2603 * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list 2604 * 2605 * @ioc: Pointer to MPT_ADAPTER structure 2606 * @i: index into the array 2607 * @scmd: scsi_cmnd pointer 2608 * 2609 **/ 2610 static void 2611 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd) 2612 { 2613 unsigned long flags; 2614 2615 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2616 ioc->ScsiLookup[i] = scmd; 2617 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2618 } 2619 2620 /** 2621 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list 2622 * @ioc: Pointer to MPT_ADAPTER structure 2623 * @sc: scsi_cmnd pointer 2624 */ 2625 static int 2626 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc) 2627 { 2628 unsigned long flags; 2629 int i, index=-1; 2630 2631 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2632 for (i = 0; i < ioc->req_depth; i++) { 2633 if (ioc->ScsiLookup[i] == sc) { 2634 index = i; 2635 goto out; 2636 } 2637 } 2638 2639 out: 2640 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2641 return index; 2642 } 2643 2644 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2645 int 2646 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 2647 { 2648 MPT_SCSI_HOST *hd; 2649 2650 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL) 2651 return 0; 2652 2653 hd = shost_priv(ioc->sh); 2654 switch (reset_phase) { 2655 case MPT_IOC_SETUP_RESET: 2656 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2657 "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__)); 2658 break; 2659 case MPT_IOC_PRE_RESET: 2660 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2661 "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__)); 2662 mptscsih_flush_running_cmds(hd); 2663 break; 2664 case MPT_IOC_POST_RESET: 2665 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2666 "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__)); 2667 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) { 2668 ioc->internal_cmds.status |= 2669 MPT_MGMT_STATUS_DID_IOCRESET; 2670 complete(&ioc->internal_cmds.done); 2671 } 2672 break; 2673 default: 2674 break; 2675 } 2676 return 1; /* currently means nothing really */ 2677 } 2678 2679 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2680 int 2681 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 2682 { 2683 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 2684 2685 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2686 "MPT event (=%02Xh) routed to SCSI host driver!\n", 2687 ioc->name, event)); 2688 2689 if ((event == MPI_EVENT_IOC_BUS_RESET || 2690 event == MPI_EVENT_EXT_BUS_RESET) && 2691 (ioc->bus_type == SPI) && (ioc->soft_resets < -1)) 2692 ioc->soft_resets++; 2693 2694 return 1; /* currently means nothing really */ 2695 } 2696 2697 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2698 /* 2699 * Bus Scan and Domain Validation functionality ... 2700 */ 2701 2702 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2703 /* 2704 * mptscsih_scandv_complete - Scan and DV callback routine registered 2705 * to Fustion MPT (base) driver. 2706 * 2707 * @ioc: Pointer to MPT_ADAPTER structure 2708 * @mf: Pointer to original MPT request frame 2709 * @mr: Pointer to MPT reply frame (NULL if TurboReply) 2710 * 2711 * This routine is called from mpt.c::mpt_interrupt() at the completion 2712 * of any SCSI IO request. 2713 * This routine is registered with the Fusion MPT (base) driver at driver 2714 * load/init time via the mpt_register() API call. 2715 * 2716 * Returns 1 indicating alloc'd request frame ptr should be freed. 2717 * 2718 * Remark: Sets a completion code and (possibly) saves sense data 2719 * in the IOC member localReply structure. 2720 * Used ONLY for DV and other internal commands. 2721 */ 2722 int 2723 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, 2724 MPT_FRAME_HDR *reply) 2725 { 2726 SCSIIORequest_t *pReq; 2727 SCSIIOReply_t *pReply; 2728 u8 cmd; 2729 u16 req_idx; 2730 u8 *sense_data; 2731 int sz; 2732 2733 ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD; 2734 ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD; 2735 if (!reply) 2736 goto out; 2737 2738 pReply = (SCSIIOReply_t *) reply; 2739 pReq = (SCSIIORequest_t *) req; 2740 ioc->internal_cmds.completion_code = 2741 mptscsih_get_completion_code(ioc, req, reply); 2742 ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID; 2743 memcpy(ioc->internal_cmds.reply, reply, 2744 min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength)); 2745 cmd = reply->u.hdr.Function; 2746 if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) || 2747 (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) && 2748 (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) { 2749 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx); 2750 sense_data = ((u8 *)ioc->sense_buf_pool + 2751 (req_idx * MPT_SENSE_BUFFER_ALLOC)); 2752 sz = min_t(int, pReq->SenseBufferLength, 2753 MPT_SENSE_BUFFER_ALLOC); 2754 memcpy(ioc->internal_cmds.sense, sense_data, sz); 2755 } 2756 out: 2757 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING)) 2758 return 0; 2759 ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING; 2760 complete(&ioc->internal_cmds.done); 2761 return 1; 2762 } 2763 2764 2765 /** 2766 * mptscsih_get_completion_code - get completion code from MPT request 2767 * @ioc: Pointer to MPT_ADAPTER structure 2768 * @req: Pointer to original MPT request frame 2769 * @reply: Pointer to MPT reply frame (NULL if TurboReply) 2770 * 2771 **/ 2772 static int 2773 mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, 2774 MPT_FRAME_HDR *reply) 2775 { 2776 SCSIIOReply_t *pReply; 2777 MpiRaidActionReply_t *pr; 2778 u8 scsi_status; 2779 u16 status; 2780 int completion_code; 2781 2782 pReply = (SCSIIOReply_t *)reply; 2783 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK; 2784 scsi_status = pReply->SCSIStatus; 2785 2786 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2787 "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh," 2788 "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState, 2789 scsi_status, le32_to_cpu(pReply->IOCLogInfo))); 2790 2791 switch (status) { 2792 2793 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */ 2794 completion_code = MPT_SCANDV_SELECTION_TIMEOUT; 2795 break; 2796 2797 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */ 2798 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */ 2799 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */ 2800 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */ 2801 completion_code = MPT_SCANDV_DID_RESET; 2802 break; 2803 2804 case MPI_IOCSTATUS_BUSY: 2805 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES: 2806 completion_code = MPT_SCANDV_BUSY; 2807 break; 2808 2809 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */ 2810 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */ 2811 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */ 2812 if (pReply->Function == MPI_FUNCTION_CONFIG) { 2813 completion_code = MPT_SCANDV_GOOD; 2814 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) { 2815 pr = (MpiRaidActionReply_t *)reply; 2816 if (le16_to_cpu(pr->ActionStatus) == 2817 MPI_RAID_ACTION_ASTATUS_SUCCESS) 2818 completion_code = MPT_SCANDV_GOOD; 2819 else 2820 completion_code = MPT_SCANDV_SOME_ERROR; 2821 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) 2822 completion_code = MPT_SCANDV_SENSE; 2823 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) { 2824 if (req->u.scsireq.CDB[0] == INQUIRY) 2825 completion_code = MPT_SCANDV_ISSUE_SENSE; 2826 else 2827 completion_code = MPT_SCANDV_DID_RESET; 2828 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS) 2829 completion_code = MPT_SCANDV_DID_RESET; 2830 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED) 2831 completion_code = MPT_SCANDV_DID_RESET; 2832 else if (scsi_status == MPI_SCSI_STATUS_BUSY) 2833 completion_code = MPT_SCANDV_BUSY; 2834 else 2835 completion_code = MPT_SCANDV_GOOD; 2836 break; 2837 2838 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */ 2839 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED) 2840 completion_code = MPT_SCANDV_DID_RESET; 2841 else 2842 completion_code = MPT_SCANDV_SOME_ERROR; 2843 break; 2844 default: 2845 completion_code = MPT_SCANDV_SOME_ERROR; 2846 break; 2847 2848 } /* switch(status) */ 2849 2850 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2851 " completionCode set to %08xh\n", ioc->name, completion_code)); 2852 return completion_code; 2853 } 2854 2855 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2856 /** 2857 * mptscsih_do_cmd - Do internal command. 2858 * @hd: MPT_SCSI_HOST pointer 2859 * @io: INTERNAL_CMD pointer. 2860 * 2861 * Issue the specified internally generated command and do command 2862 * specific cleanup. For bus scan / DV only. 2863 * NOTES: If command is Inquiry and status is good, 2864 * initialize a target structure, save the data 2865 * 2866 * Remark: Single threaded access only. 2867 * 2868 * Return: 2869 * < 0 if an illegal command or no resources 2870 * 2871 * 0 if good 2872 * 2873 * > 0 if command complete but some type of completion error. 2874 */ 2875 static int 2876 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io) 2877 { 2878 MPT_FRAME_HDR *mf; 2879 SCSIIORequest_t *pScsiReq; 2880 int my_idx, ii, dir; 2881 int timeout; 2882 char cmdLen; 2883 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; 2884 u8 cmd = io->cmd; 2885 MPT_ADAPTER *ioc = hd->ioc; 2886 int ret = 0; 2887 unsigned long timeleft; 2888 unsigned long flags; 2889 2890 /* don't send internal command during diag reset */ 2891 spin_lock_irqsave(&ioc->taskmgmt_lock, flags); 2892 if (ioc->ioc_reset_in_progress) { 2893 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); 2894 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2895 "%s: busy with host reset\n", ioc->name, __func__)); 2896 return MPT_SCANDV_BUSY; 2897 } 2898 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); 2899 2900 mutex_lock(&ioc->internal_cmds.mutex); 2901 2902 /* Set command specific information 2903 */ 2904 switch (cmd) { 2905 case INQUIRY: 2906 cmdLen = 6; 2907 dir = MPI_SCSIIO_CONTROL_READ; 2908 CDB[0] = cmd; 2909 CDB[4] = io->size; 2910 timeout = 10; 2911 break; 2912 2913 case TEST_UNIT_READY: 2914 cmdLen = 6; 2915 dir = MPI_SCSIIO_CONTROL_READ; 2916 timeout = 10; 2917 break; 2918 2919 case START_STOP: 2920 cmdLen = 6; 2921 dir = MPI_SCSIIO_CONTROL_READ; 2922 CDB[0] = cmd; 2923 CDB[4] = 1; /*Spin up the disk */ 2924 timeout = 15; 2925 break; 2926 2927 case REQUEST_SENSE: 2928 cmdLen = 6; 2929 CDB[0] = cmd; 2930 CDB[4] = io->size; 2931 dir = MPI_SCSIIO_CONTROL_READ; 2932 timeout = 10; 2933 break; 2934 2935 case READ_BUFFER: 2936 cmdLen = 10; 2937 dir = MPI_SCSIIO_CONTROL_READ; 2938 CDB[0] = cmd; 2939 if (io->flags & MPT_ICFLAG_ECHO) { 2940 CDB[1] = 0x0A; 2941 } else { 2942 CDB[1] = 0x02; 2943 } 2944 2945 if (io->flags & MPT_ICFLAG_BUF_CAP) { 2946 CDB[1] |= 0x01; 2947 } 2948 CDB[6] = (io->size >> 16) & 0xFF; 2949 CDB[7] = (io->size >> 8) & 0xFF; 2950 CDB[8] = io->size & 0xFF; 2951 timeout = 10; 2952 break; 2953 2954 case WRITE_BUFFER: 2955 cmdLen = 10; 2956 dir = MPI_SCSIIO_CONTROL_WRITE; 2957 CDB[0] = cmd; 2958 if (io->flags & MPT_ICFLAG_ECHO) { 2959 CDB[1] = 0x0A; 2960 } else { 2961 CDB[1] = 0x02; 2962 } 2963 CDB[6] = (io->size >> 16) & 0xFF; 2964 CDB[7] = (io->size >> 8) & 0xFF; 2965 CDB[8] = io->size & 0xFF; 2966 timeout = 10; 2967 break; 2968 2969 case RESERVE: 2970 cmdLen = 6; 2971 dir = MPI_SCSIIO_CONTROL_READ; 2972 CDB[0] = cmd; 2973 timeout = 10; 2974 break; 2975 2976 case RELEASE: 2977 cmdLen = 6; 2978 dir = MPI_SCSIIO_CONTROL_READ; 2979 CDB[0] = cmd; 2980 timeout = 10; 2981 break; 2982 2983 case SYNCHRONIZE_CACHE: 2984 cmdLen = 10; 2985 dir = MPI_SCSIIO_CONTROL_READ; 2986 CDB[0] = cmd; 2987 // CDB[1] = 0x02; /* set immediate bit */ 2988 timeout = 10; 2989 break; 2990 2991 default: 2992 /* Error Case */ 2993 ret = -EFAULT; 2994 goto out; 2995 } 2996 2997 /* Get and Populate a free Frame 2998 * MsgContext set in mpt_get_msg_frame call 2999 */ 3000 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) { 3001 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n", 3002 ioc->name, __func__)); 3003 ret = MPT_SCANDV_BUSY; 3004 goto out; 3005 } 3006 3007 pScsiReq = (SCSIIORequest_t *) mf; 3008 3009 /* Get the request index */ 3010 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 3011 ADD_INDEX_LOG(my_idx); /* for debug */ 3012 3013 if (io->flags & MPT_ICFLAG_PHYS_DISK) { 3014 pScsiReq->TargetID = io->physDiskNum; 3015 pScsiReq->Bus = 0; 3016 pScsiReq->ChainOffset = 0; 3017 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH; 3018 } else { 3019 pScsiReq->TargetID = io->id; 3020 pScsiReq->Bus = io->channel; 3021 pScsiReq->ChainOffset = 0; 3022 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST; 3023 } 3024 3025 pScsiReq->CDBLength = cmdLen; 3026 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE; 3027 3028 pScsiReq->Reserved = 0; 3029 3030 pScsiReq->MsgFlags = mpt_msg_flags(ioc); 3031 /* MsgContext set in mpt_get_msg_fram call */ 3032 3033 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN); 3034 3035 if (io->flags & MPT_ICFLAG_TAGGED_CMD) 3036 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ); 3037 else 3038 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED); 3039 3040 if (cmd == REQUEST_SENSE) { 3041 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED); 3042 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 3043 "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd)); 3044 } 3045 3046 for (ii = 0; ii < 16; ii++) 3047 pScsiReq->CDB[ii] = CDB[ii]; 3048 3049 pScsiReq->DataLength = cpu_to_le32(io->size); 3050 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma 3051 + (my_idx * MPT_SENSE_BUFFER_ALLOC)); 3052 3053 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 3054 "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%d\n", 3055 ioc->name, __func__, cmd, io->channel, io->id, io->lun)); 3056 3057 if (dir == MPI_SCSIIO_CONTROL_READ) 3058 ioc->add_sge((char *) &pScsiReq->SGL, 3059 MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma); 3060 else 3061 ioc->add_sge((char *) &pScsiReq->SGL, 3062 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma); 3063 3064 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status) 3065 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf); 3066 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done, 3067 timeout*HZ); 3068 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) { 3069 ret = MPT_SCANDV_DID_RESET; 3070 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT 3071 "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__, 3072 cmd)); 3073 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) { 3074 mpt_free_msg_frame(ioc, mf); 3075 goto out; 3076 } 3077 if (!timeleft) { 3078 printk(MYIOC_s_WARN_FMT 3079 "Issuing Reset from %s!! doorbell=0x%08xh" 3080 " cmd=0x%02x\n", 3081 ioc->name, __func__, mpt_GetIocState(ioc, 0), 3082 cmd); 3083 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); 3084 mpt_free_msg_frame(ioc, mf); 3085 } 3086 goto out; 3087 } 3088 3089 ret = ioc->internal_cmds.completion_code; 3090 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n", 3091 ioc->name, __func__, ret)); 3092 3093 out: 3094 CLEAR_MGMT_STATUS(ioc->internal_cmds.status) 3095 mutex_unlock(&ioc->internal_cmds.mutex); 3096 return ret; 3097 } 3098 3099 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 3100 /** 3101 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks. 3102 * @hd: Pointer to a SCSI HOST structure 3103 * @vdevice: virtual target device 3104 * 3105 * Uses the ISR, but with special processing. 3106 * MUST be single-threaded. 3107 * 3108 */ 3109 static void 3110 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice) 3111 { 3112 INTERNAL_CMD iocmd; 3113 3114 /* Ignore hidden raid components, this is handled when the command 3115 * is sent to the volume 3116 */ 3117 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) 3118 return; 3119 3120 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted || 3121 !vdevice->configured_lun) 3122 return; 3123 3124 /* Following parameters will not change 3125 * in this routine. 3126 */ 3127 iocmd.cmd = SYNCHRONIZE_CACHE; 3128 iocmd.flags = 0; 3129 iocmd.physDiskNum = -1; 3130 iocmd.data = NULL; 3131 iocmd.data_dma = -1; 3132 iocmd.size = 0; 3133 iocmd.rsvd = iocmd.rsvd2 = 0; 3134 iocmd.channel = vdevice->vtarget->channel; 3135 iocmd.id = vdevice->vtarget->id; 3136 iocmd.lun = vdevice->lun; 3137 3138 mptscsih_do_cmd(hd, &iocmd); 3139 } 3140 3141 static ssize_t 3142 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr, 3143 char *buf) 3144 { 3145 struct Scsi_Host *host = class_to_shost(dev); 3146 MPT_SCSI_HOST *hd = shost_priv(host); 3147 MPT_ADAPTER *ioc = hd->ioc; 3148 3149 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", 3150 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, 3151 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, 3152 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, 3153 ioc->facts.FWVersion.Word & 0x000000FF); 3154 } 3155 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL); 3156 3157 static ssize_t 3158 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr, 3159 char *buf) 3160 { 3161 struct Scsi_Host *host = class_to_shost(dev); 3162 MPT_SCSI_HOST *hd = shost_priv(host); 3163 MPT_ADAPTER *ioc = hd->ioc; 3164 3165 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 3166 (ioc->biosVersion & 0xFF000000) >> 24, 3167 (ioc->biosVersion & 0x00FF0000) >> 16, 3168 (ioc->biosVersion & 0x0000FF00) >> 8, 3169 ioc->biosVersion & 0x000000FF); 3170 } 3171 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL); 3172 3173 static ssize_t 3174 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr, 3175 char *buf) 3176 { 3177 struct Scsi_Host *host = class_to_shost(dev); 3178 MPT_SCSI_HOST *hd = shost_priv(host); 3179 MPT_ADAPTER *ioc = hd->ioc; 3180 3181 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion); 3182 } 3183 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL); 3184 3185 static ssize_t 3186 mptscsih_version_product_show(struct device *dev, 3187 struct device_attribute *attr, 3188 char *buf) 3189 { 3190 struct Scsi_Host *host = class_to_shost(dev); 3191 MPT_SCSI_HOST *hd = shost_priv(host); 3192 MPT_ADAPTER *ioc = hd->ioc; 3193 3194 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name); 3195 } 3196 static DEVICE_ATTR(version_product, S_IRUGO, 3197 mptscsih_version_product_show, NULL); 3198 3199 static ssize_t 3200 mptscsih_version_nvdata_persistent_show(struct device *dev, 3201 struct device_attribute *attr, 3202 char *buf) 3203 { 3204 struct Scsi_Host *host = class_to_shost(dev); 3205 MPT_SCSI_HOST *hd = shost_priv(host); 3206 MPT_ADAPTER *ioc = hd->ioc; 3207 3208 return snprintf(buf, PAGE_SIZE, "%02xh\n", 3209 ioc->nvdata_version_persistent); 3210 } 3211 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO, 3212 mptscsih_version_nvdata_persistent_show, NULL); 3213 3214 static ssize_t 3215 mptscsih_version_nvdata_default_show(struct device *dev, 3216 struct device_attribute *attr, char *buf) 3217 { 3218 struct Scsi_Host *host = class_to_shost(dev); 3219 MPT_SCSI_HOST *hd = shost_priv(host); 3220 MPT_ADAPTER *ioc = hd->ioc; 3221 3222 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default); 3223 } 3224 static DEVICE_ATTR(version_nvdata_default, S_IRUGO, 3225 mptscsih_version_nvdata_default_show, NULL); 3226 3227 static ssize_t 3228 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr, 3229 char *buf) 3230 { 3231 struct Scsi_Host *host = class_to_shost(dev); 3232 MPT_SCSI_HOST *hd = shost_priv(host); 3233 MPT_ADAPTER *ioc = hd->ioc; 3234 3235 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name); 3236 } 3237 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL); 3238 3239 static ssize_t 3240 mptscsih_board_assembly_show(struct device *dev, 3241 struct device_attribute *attr, char *buf) 3242 { 3243 struct Scsi_Host *host = class_to_shost(dev); 3244 MPT_SCSI_HOST *hd = shost_priv(host); 3245 MPT_ADAPTER *ioc = hd->ioc; 3246 3247 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly); 3248 } 3249 static DEVICE_ATTR(board_assembly, S_IRUGO, 3250 mptscsih_board_assembly_show, NULL); 3251 3252 static ssize_t 3253 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr, 3254 char *buf) 3255 { 3256 struct Scsi_Host *host = class_to_shost(dev); 3257 MPT_SCSI_HOST *hd = shost_priv(host); 3258 MPT_ADAPTER *ioc = hd->ioc; 3259 3260 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer); 3261 } 3262 static DEVICE_ATTR(board_tracer, S_IRUGO, 3263 mptscsih_board_tracer_show, NULL); 3264 3265 static ssize_t 3266 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr, 3267 char *buf) 3268 { 3269 struct Scsi_Host *host = class_to_shost(dev); 3270 MPT_SCSI_HOST *hd = shost_priv(host); 3271 MPT_ADAPTER *ioc = hd->ioc; 3272 3273 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay); 3274 } 3275 static DEVICE_ATTR(io_delay, S_IRUGO, 3276 mptscsih_io_delay_show, NULL); 3277 3278 static ssize_t 3279 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr, 3280 char *buf) 3281 { 3282 struct Scsi_Host *host = class_to_shost(dev); 3283 MPT_SCSI_HOST *hd = shost_priv(host); 3284 MPT_ADAPTER *ioc = hd->ioc; 3285 3286 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay); 3287 } 3288 static DEVICE_ATTR(device_delay, S_IRUGO, 3289 mptscsih_device_delay_show, NULL); 3290 3291 static ssize_t 3292 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr, 3293 char *buf) 3294 { 3295 struct Scsi_Host *host = class_to_shost(dev); 3296 MPT_SCSI_HOST *hd = shost_priv(host); 3297 MPT_ADAPTER *ioc = hd->ioc; 3298 3299 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level); 3300 } 3301 static ssize_t 3302 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr, 3303 const char *buf, size_t count) 3304 { 3305 struct Scsi_Host *host = class_to_shost(dev); 3306 MPT_SCSI_HOST *hd = shost_priv(host); 3307 MPT_ADAPTER *ioc = hd->ioc; 3308 int val = 0; 3309 3310 if (sscanf(buf, "%x", &val) != 1) 3311 return -EINVAL; 3312 3313 ioc->debug_level = val; 3314 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n", 3315 ioc->name, ioc->debug_level); 3316 return strlen(buf); 3317 } 3318 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR, 3319 mptscsih_debug_level_show, mptscsih_debug_level_store); 3320 3321 struct device_attribute *mptscsih_host_attrs[] = { 3322 &dev_attr_version_fw, 3323 &dev_attr_version_bios, 3324 &dev_attr_version_mpi, 3325 &dev_attr_version_product, 3326 &dev_attr_version_nvdata_persistent, 3327 &dev_attr_version_nvdata_default, 3328 &dev_attr_board_name, 3329 &dev_attr_board_assembly, 3330 &dev_attr_board_tracer, 3331 &dev_attr_io_delay, 3332 &dev_attr_device_delay, 3333 &dev_attr_debug_level, 3334 NULL, 3335 }; 3336 3337 EXPORT_SYMBOL(mptscsih_host_attrs); 3338 3339 EXPORT_SYMBOL(mptscsih_remove); 3340 EXPORT_SYMBOL(mptscsih_shutdown); 3341 #ifdef CONFIG_PM 3342 EXPORT_SYMBOL(mptscsih_suspend); 3343 EXPORT_SYMBOL(mptscsih_resume); 3344 #endif 3345 EXPORT_SYMBOL(mptscsih_proc_info); 3346 EXPORT_SYMBOL(mptscsih_info); 3347 EXPORT_SYMBOL(mptscsih_qcmd); 3348 EXPORT_SYMBOL(mptscsih_slave_destroy); 3349 EXPORT_SYMBOL(mptscsih_slave_configure); 3350 EXPORT_SYMBOL(mptscsih_abort); 3351 EXPORT_SYMBOL(mptscsih_dev_reset); 3352 EXPORT_SYMBOL(mptscsih_bus_reset); 3353 EXPORT_SYMBOL(mptscsih_host_reset); 3354 EXPORT_SYMBOL(mptscsih_bios_param); 3355 EXPORT_SYMBOL(mptscsih_io_done); 3356 EXPORT_SYMBOL(mptscsih_taskmgmt_complete); 3357 EXPORT_SYMBOL(mptscsih_scandv_complete); 3358 EXPORT_SYMBOL(mptscsih_event_process); 3359 EXPORT_SYMBOL(mptscsih_ioc_reset); 3360 EXPORT_SYMBOL(mptscsih_change_queue_depth); 3361 3362 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 3363