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 && ((pScsiReq->CDB[1] & 0x02) == 0)) || 831 pScsiReq->CDB[0] == READ_10 || 832 pScsiReq->CDB[0] == READ_12 || 833 (pScsiReq->CDB[0] == READ_16 && 834 ((pScsiReq->CDB[1] & 0x02) == 0)) || 835 pScsiReq->CDB[0] == VERIFY || 836 pScsiReq->CDB[0] == VERIFY_16) { 837 if (scsi_bufflen(sc) != 838 xfer_cnt) { 839 sc->result = 840 DID_SOFT_ERROR << 16; 841 printk(KERN_WARNING "Errata" 842 "on LSI53C1030 occurred." 843 "sc->req_bufflen=0x%02x," 844 "xfer_cnt=0x%02x\n", 845 scsi_bufflen(sc), 846 xfer_cnt); 847 } 848 } 849 } 850 851 if (xfer_cnt < sc->underflow) { 852 if (scsi_status == SAM_STAT_BUSY) 853 sc->result = SAM_STAT_BUSY; 854 else 855 sc->result = DID_SOFT_ERROR << 16; 856 } 857 if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) { 858 /* What to do? 859 */ 860 sc->result = DID_SOFT_ERROR << 16; 861 } 862 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) { 863 /* Not real sure here either... */ 864 sc->result = DID_RESET << 16; 865 } 866 } 867 868 869 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT 870 " sc->underflow={report ERR if < %02xh bytes xfer'd}\n", 871 ioc->name, sc->underflow)); 872 dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT 873 " ActBytesXferd=%02xh\n", ioc->name, xfer_cnt)); 874 875 /* Report Queue Full 876 */ 877 if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL) 878 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq); 879 880 break; 881 882 case MPI_IOCSTATUS_SCSI_DATA_OVERRUN: /* 0x0044 */ 883 scsi_set_resid(sc, 0); 884 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */ 885 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */ 886 sc->result = (DID_OK << 16) | scsi_status; 887 if (scsi_state == 0) { 888 ; 889 } else if (scsi_state & 890 MPI_SCSI_STATE_AUTOSENSE_VALID) { 891 892 /* 893 * For potential trouble on LSI53C1030. 894 * (date:2007.xx.) 895 * It is checked whether the length of 896 * request data is equal to 897 * the length of transfer and residual. 898 * MEDIUM_ERROR is set by incorrect data. 899 */ 900 if ((ioc->bus_type == SPI) && 901 (sc->sense_buffer[2] & 0x20)) { 902 u32 difftransfer; 903 difftransfer = 904 sc->sense_buffer[3] << 24 | 905 sc->sense_buffer[4] << 16 | 906 sc->sense_buffer[5] << 8 | 907 sc->sense_buffer[6]; 908 if (((sc->sense_buffer[3] & 0x80) == 909 0x80) && (scsi_bufflen(sc) 910 != xfer_cnt)) { 911 sc->sense_buffer[2] = 912 MEDIUM_ERROR; 913 sc->sense_buffer[12] = 0xff; 914 sc->sense_buffer[13] = 0xff; 915 printk(KERN_WARNING"Errata" 916 "on LSI53C1030 occurred." 917 "sc->req_bufflen=0x%02x," 918 "xfer_cnt=0x%02x\n" , 919 scsi_bufflen(sc), 920 xfer_cnt); 921 } 922 if (((sc->sense_buffer[3] & 0x80) 923 != 0x80) && 924 (scsi_bufflen(sc) != 925 xfer_cnt + difftransfer)) { 926 sc->sense_buffer[2] = 927 MEDIUM_ERROR; 928 sc->sense_buffer[12] = 0xff; 929 sc->sense_buffer[13] = 0xff; 930 printk(KERN_WARNING 931 "Errata on LSI53C1030 occurred" 932 "sc->req_bufflen=0x%02x," 933 " xfer_cnt=0x%02x," 934 "difftransfer=0x%02x\n", 935 scsi_bufflen(sc), 936 xfer_cnt, 937 difftransfer); 938 } 939 } 940 941 /* 942 * If running against circa 200003dd 909 MPT f/w, 943 * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL 944 * (QUEUE_FULL) returned from device! --> get 0x0000?128 945 * and with SenseBytes set to 0. 946 */ 947 if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL) 948 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq); 949 950 } 951 else if (scsi_state & 952 (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS) 953 ) { 954 /* 955 * What to do? 956 */ 957 sc->result = DID_SOFT_ERROR << 16; 958 } 959 else if (scsi_state & MPI_SCSI_STATE_TERMINATED) { 960 /* Not real sure here either... */ 961 sc->result = DID_RESET << 16; 962 } 963 else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) { 964 /* Device Inq. data indicates that it supports 965 * QTags, but rejects QTag messages. 966 * This command completed OK. 967 * 968 * Not real sure here either so do nothing... */ 969 } 970 971 if (sc->result == MPI_SCSI_STATUS_TASK_SET_FULL) 972 mptscsih_report_queue_full(sc, pScsiReply, pScsiReq); 973 974 /* Add handling of: 975 * Reservation Conflict, Busy, 976 * Command Terminated, CHECK 977 */ 978 break; 979 980 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */ 981 sc->result = DID_SOFT_ERROR << 16; 982 break; 983 984 case MPI_IOCSTATUS_INVALID_FUNCTION: /* 0x0001 */ 985 case MPI_IOCSTATUS_INVALID_SGL: /* 0x0003 */ 986 case MPI_IOCSTATUS_INTERNAL_ERROR: /* 0x0004 */ 987 case MPI_IOCSTATUS_RESERVED: /* 0x0005 */ 988 case MPI_IOCSTATUS_INVALID_FIELD: /* 0x0007 */ 989 case MPI_IOCSTATUS_INVALID_STATE: /* 0x0008 */ 990 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */ 991 case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED: /* 0x004A */ 992 default: 993 /* 994 * What to do? 995 */ 996 sc->result = DID_SOFT_ERROR << 16; 997 break; 998 999 } /* switch(status) */ 1000 1001 #ifdef CONFIG_FUSION_LOGGING 1002 if (sc->result && (ioc->debug_level & MPT_DEBUG_REPLY)) 1003 mptscsih_info_scsiio(ioc, sc, pScsiReply); 1004 #endif 1005 1006 } /* end of address reply case */ 1007 out: 1008 /* Unmap the DMA buffers, if any. */ 1009 scsi_dma_unmap(sc); 1010 1011 sc->scsi_done(sc); /* Issue the command callback */ 1012 1013 /* Free Chain buffers */ 1014 mptscsih_freeChainBuffers(ioc, req_idx); 1015 return 1; 1016 } 1017 1018 /* 1019 * mptscsih_flush_running_cmds - For each command found, search 1020 * Scsi_Host instance taskQ and reply to OS. 1021 * Called only if recovering from a FW reload. 1022 * @hd: Pointer to a SCSI HOST structure 1023 * 1024 * Returns: None. 1025 * 1026 * Must be called while new I/Os are being queued. 1027 */ 1028 void 1029 mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd) 1030 { 1031 MPT_ADAPTER *ioc = hd->ioc; 1032 struct scsi_cmnd *sc; 1033 SCSIIORequest_t *mf = NULL; 1034 int ii; 1035 int channel, id; 1036 1037 for (ii= 0; ii < ioc->req_depth; ii++) { 1038 sc = mptscsih_getclear_scsi_lookup(ioc, ii); 1039 if (!sc) 1040 continue; 1041 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii); 1042 if (!mf) 1043 continue; 1044 channel = mf->Bus; 1045 id = mf->TargetID; 1046 mptscsih_freeChainBuffers(ioc, ii); 1047 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf); 1048 if ((unsigned char *)mf != sc->host_scribble) 1049 continue; 1050 scsi_dma_unmap(sc); 1051 sc->result = DID_RESET << 16; 1052 sc->host_scribble = NULL; 1053 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, MYIOC_s_FMT 1054 "completing cmds: fw_channel %d, fw_id %d, sc=%p, mf = %p, " 1055 "idx=%x\n", ioc->name, channel, id, sc, mf, ii)); 1056 sc->scsi_done(sc); 1057 } 1058 } 1059 EXPORT_SYMBOL(mptscsih_flush_running_cmds); 1060 1061 /* 1062 * mptscsih_search_running_cmds - Delete any commands associated 1063 * with the specified target and lun. Function called only 1064 * when a lun is disable by mid-layer. 1065 * Do NOT access the referenced scsi_cmnd structure or 1066 * members. Will cause either a paging or NULL ptr error. 1067 * (BUT, BUT, BUT, the code does reference it! - mdr) 1068 * @hd: Pointer to a SCSI HOST structure 1069 * @vdevice: per device private data 1070 * 1071 * Returns: None. 1072 * 1073 * Called from slave_destroy. 1074 */ 1075 static void 1076 mptscsih_search_running_cmds(MPT_SCSI_HOST *hd, VirtDevice *vdevice) 1077 { 1078 SCSIIORequest_t *mf = NULL; 1079 int ii; 1080 struct scsi_cmnd *sc; 1081 struct scsi_lun lun; 1082 MPT_ADAPTER *ioc = hd->ioc; 1083 unsigned long flags; 1084 1085 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1086 for (ii = 0; ii < ioc->req_depth; ii++) { 1087 if ((sc = ioc->ScsiLookup[ii]) != NULL) { 1088 1089 mf = (SCSIIORequest_t *)MPT_INDEX_2_MFPTR(ioc, ii); 1090 if (mf == NULL) 1091 continue; 1092 /* If the device is a hidden raid component, then its 1093 * expected that the mf->function will be RAID_SCSI_IO 1094 */ 1095 if (vdevice->vtarget->tflags & 1096 MPT_TARGET_FLAGS_RAID_COMPONENT && mf->Function != 1097 MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) 1098 continue; 1099 1100 int_to_scsilun(vdevice->lun, &lun); 1101 if ((mf->Bus != vdevice->vtarget->channel) || 1102 (mf->TargetID != vdevice->vtarget->id) || 1103 memcmp(lun.scsi_lun, mf->LUN, 8)) 1104 continue; 1105 1106 if ((unsigned char *)mf != sc->host_scribble) 1107 continue; 1108 ioc->ScsiLookup[ii] = NULL; 1109 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1110 mptscsih_freeChainBuffers(ioc, ii); 1111 mpt_free_msg_frame(ioc, (MPT_FRAME_HDR *)mf); 1112 scsi_dma_unmap(sc); 1113 sc->host_scribble = NULL; 1114 sc->result = DID_NO_CONNECT << 16; 1115 dtmprintk(ioc, sdev_printk(KERN_INFO, sc->device, 1116 MYIOC_s_FMT "completing cmds: fw_channel %d, " 1117 "fw_id %d, sc=%p, mf = %p, idx=%x\n", ioc->name, 1118 vdevice->vtarget->channel, vdevice->vtarget->id, 1119 sc, mf, ii)); 1120 sc->scsi_done(sc); 1121 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 1122 } 1123 } 1124 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 1125 return; 1126 } 1127 1128 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1129 1130 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1131 /* 1132 * mptscsih_report_queue_full - Report QUEUE_FULL status returned 1133 * from a SCSI target device. 1134 * @sc: Pointer to scsi_cmnd structure 1135 * @pScsiReply: Pointer to SCSIIOReply_t 1136 * @pScsiReq: Pointer to original SCSI request 1137 * 1138 * This routine periodically reports QUEUE_FULL status returned from a 1139 * SCSI target device. It reports this to the console via kernel 1140 * printk() API call, not more than once every 10 seconds. 1141 */ 1142 static void 1143 mptscsih_report_queue_full(struct scsi_cmnd *sc, SCSIIOReply_t *pScsiReply, SCSIIORequest_t *pScsiReq) 1144 { 1145 long time = jiffies; 1146 MPT_SCSI_HOST *hd; 1147 MPT_ADAPTER *ioc; 1148 1149 if (sc->device == NULL) 1150 return; 1151 if (sc->device->host == NULL) 1152 return; 1153 if ((hd = shost_priv(sc->device->host)) == NULL) 1154 return; 1155 ioc = hd->ioc; 1156 if (time - hd->last_queue_full > 10 * HZ) { 1157 dprintk(ioc, printk(MYIOC_s_WARN_FMT "Device (%d:%d:%d) reported QUEUE_FULL!\n", 1158 ioc->name, 0, sc->device->id, sc->device->lun)); 1159 hd->last_queue_full = time; 1160 } 1161 } 1162 1163 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1164 /* 1165 * mptscsih_remove - Removed scsi devices 1166 * @pdev: Pointer to pci_dev structure 1167 * 1168 * 1169 */ 1170 void 1171 mptscsih_remove(struct pci_dev *pdev) 1172 { 1173 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1174 struct Scsi_Host *host = ioc->sh; 1175 MPT_SCSI_HOST *hd; 1176 int sz1; 1177 1178 scsi_remove_host(host); 1179 1180 if((hd = shost_priv(host)) == NULL) 1181 return; 1182 1183 mptscsih_shutdown(pdev); 1184 1185 sz1=0; 1186 1187 if (ioc->ScsiLookup != NULL) { 1188 sz1 = ioc->req_depth * sizeof(void *); 1189 kfree(ioc->ScsiLookup); 1190 ioc->ScsiLookup = NULL; 1191 } 1192 1193 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1194 "Free'd ScsiLookup (%d) memory\n", 1195 ioc->name, sz1)); 1196 1197 kfree(hd->info_kbuf); 1198 1199 /* NULL the Scsi_Host pointer 1200 */ 1201 ioc->sh = NULL; 1202 1203 scsi_host_put(host); 1204 1205 mpt_detach(pdev); 1206 1207 } 1208 1209 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1210 /* 1211 * mptscsih_shutdown - reboot notifier 1212 * 1213 */ 1214 void 1215 mptscsih_shutdown(struct pci_dev *pdev) 1216 { 1217 } 1218 1219 #ifdef CONFIG_PM 1220 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1221 /* 1222 * mptscsih_suspend - Fusion MPT scsi driver suspend routine. 1223 * 1224 * 1225 */ 1226 int 1227 mptscsih_suspend(struct pci_dev *pdev, pm_message_t state) 1228 { 1229 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1230 1231 scsi_block_requests(ioc->sh); 1232 flush_scheduled_work(); 1233 mptscsih_shutdown(pdev); 1234 return mpt_suspend(pdev,state); 1235 } 1236 1237 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1238 /* 1239 * mptscsih_resume - Fusion MPT scsi driver resume routine. 1240 * 1241 * 1242 */ 1243 int 1244 mptscsih_resume(struct pci_dev *pdev) 1245 { 1246 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1247 int rc; 1248 1249 rc = mpt_resume(pdev); 1250 scsi_unblock_requests(ioc->sh); 1251 return rc; 1252 } 1253 1254 #endif 1255 1256 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1257 /** 1258 * mptscsih_info - Return information about MPT adapter 1259 * @SChost: Pointer to Scsi_Host structure 1260 * 1261 * (linux scsi_host_template.info routine) 1262 * 1263 * Returns pointer to buffer where information was written. 1264 */ 1265 const char * 1266 mptscsih_info(struct Scsi_Host *SChost) 1267 { 1268 MPT_SCSI_HOST *h; 1269 int size = 0; 1270 1271 h = shost_priv(SChost); 1272 1273 if (h) { 1274 if (h->info_kbuf == NULL) 1275 if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL) 1276 return h->info_kbuf; 1277 h->info_kbuf[0] = '\0'; 1278 1279 mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0); 1280 h->info_kbuf[size-1] = '\0'; 1281 } 1282 1283 return h->info_kbuf; 1284 } 1285 1286 struct info_str { 1287 char *buffer; 1288 int length; 1289 int offset; 1290 int pos; 1291 }; 1292 1293 static void 1294 mptscsih_copy_mem_info(struct info_str *info, char *data, int len) 1295 { 1296 if (info->pos + len > info->length) 1297 len = info->length - info->pos; 1298 1299 if (info->pos + len < info->offset) { 1300 info->pos += len; 1301 return; 1302 } 1303 1304 if (info->pos < info->offset) { 1305 data += (info->offset - info->pos); 1306 len -= (info->offset - info->pos); 1307 } 1308 1309 if (len > 0) { 1310 memcpy(info->buffer + info->pos, data, len); 1311 info->pos += len; 1312 } 1313 } 1314 1315 static int 1316 mptscsih_copy_info(struct info_str *info, char *fmt, ...) 1317 { 1318 va_list args; 1319 char buf[81]; 1320 int len; 1321 1322 va_start(args, fmt); 1323 len = vsprintf(buf, fmt, args); 1324 va_end(args); 1325 1326 mptscsih_copy_mem_info(info, buf, len); 1327 return len; 1328 } 1329 1330 static int 1331 mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len) 1332 { 1333 struct info_str info; 1334 1335 info.buffer = pbuf; 1336 info.length = len; 1337 info.offset = offset; 1338 info.pos = 0; 1339 1340 mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name); 1341 mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word); 1342 mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts); 1343 mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth); 1344 1345 return ((info.pos > info.offset) ? info.pos - info.offset : 0); 1346 } 1347 1348 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1349 /** 1350 * mptscsih_proc_info - Return information about MPT adapter 1351 * @host: scsi host struct 1352 * @buffer: if write, user data; if read, buffer for user 1353 * @start: returns the buffer address 1354 * @offset: if write, 0; if read, the current offset into the buffer from 1355 * the previous read. 1356 * @length: if write, return length; 1357 * @func: write = 1; read = 0 1358 * 1359 * (linux scsi_host_template.info routine) 1360 */ 1361 int 1362 mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, 1363 int length, int func) 1364 { 1365 MPT_SCSI_HOST *hd = shost_priv(host); 1366 MPT_ADAPTER *ioc = hd->ioc; 1367 int size = 0; 1368 1369 if (func) { 1370 /* 1371 * write is not supported 1372 */ 1373 } else { 1374 if (start) 1375 *start = buffer; 1376 1377 size = mptscsih_host_info(ioc, buffer, offset, length); 1378 } 1379 1380 return size; 1381 } 1382 1383 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1384 #define ADD_INDEX_LOG(req_ent) do { } while(0) 1385 1386 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1387 /** 1388 * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine. 1389 * @SCpnt: Pointer to scsi_cmnd structure 1390 * @done: Pointer SCSI mid-layer IO completion function 1391 * 1392 * (linux scsi_host_template.queuecommand routine) 1393 * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest 1394 * from a linux scsi_cmnd request and send it to the IOC. 1395 * 1396 * Returns 0. (rtn value discarded by linux scsi mid-layer) 1397 */ 1398 int 1399 mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) 1400 { 1401 MPT_SCSI_HOST *hd; 1402 MPT_FRAME_HDR *mf; 1403 SCSIIORequest_t *pScsiReq; 1404 VirtDevice *vdevice = SCpnt->device->hostdata; 1405 u32 datalen; 1406 u32 scsictl; 1407 u32 scsidir; 1408 u32 cmd_len; 1409 int my_idx; 1410 int ii; 1411 MPT_ADAPTER *ioc; 1412 1413 hd = shost_priv(SCpnt->device->host); 1414 ioc = hd->ioc; 1415 SCpnt->scsi_done = done; 1416 1417 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n", 1418 ioc->name, SCpnt, done)); 1419 1420 if (ioc->taskmgmt_quiesce_io) 1421 return SCSI_MLQUEUE_HOST_BUSY; 1422 1423 /* 1424 * Put together a MPT SCSI request... 1425 */ 1426 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) { 1427 dprintk(ioc, printk(MYIOC_s_WARN_FMT "QueueCmd, no msg frames!!\n", 1428 ioc->name)); 1429 return SCSI_MLQUEUE_HOST_BUSY; 1430 } 1431 1432 pScsiReq = (SCSIIORequest_t *) mf; 1433 1434 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 1435 1436 ADD_INDEX_LOG(my_idx); 1437 1438 /* TUR's being issued with scsictl=0x02000000 (DATA_IN)! 1439 * Seems we may receive a buffer (datalen>0) even when there 1440 * will be no data transfer! GRRRRR... 1441 */ 1442 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) { 1443 datalen = scsi_bufflen(SCpnt); 1444 scsidir = MPI_SCSIIO_CONTROL_READ; /* DATA IN (host<--ioc<--dev) */ 1445 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) { 1446 datalen = scsi_bufflen(SCpnt); 1447 scsidir = MPI_SCSIIO_CONTROL_WRITE; /* DATA OUT (host-->ioc-->dev) */ 1448 } else { 1449 datalen = 0; 1450 scsidir = MPI_SCSIIO_CONTROL_NODATATRANSFER; 1451 } 1452 1453 /* Default to untagged. Once a target structure has been allocated, 1454 * use the Inquiry data to determine if device supports tagged. 1455 */ 1456 if (vdevice 1457 && (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES) 1458 && (SCpnt->device->tagged_supported)) { 1459 scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ; 1460 if (SCpnt->request && SCpnt->request->ioprio) { 1461 if (((SCpnt->request->ioprio & 0x7) == 1) || 1462 !(SCpnt->request->ioprio & 0x7)) 1463 scsictl |= MPI_SCSIIO_CONTROL_HEADOFQ; 1464 } 1465 } else 1466 scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED; 1467 1468 1469 /* Use the above information to set up the message frame 1470 */ 1471 pScsiReq->TargetID = (u8) vdevice->vtarget->id; 1472 pScsiReq->Bus = vdevice->vtarget->channel; 1473 pScsiReq->ChainOffset = 0; 1474 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) 1475 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH; 1476 else 1477 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST; 1478 pScsiReq->CDBLength = SCpnt->cmd_len; 1479 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE; 1480 pScsiReq->Reserved = 0; 1481 pScsiReq->MsgFlags = mpt_msg_flags(ioc); 1482 int_to_scsilun(SCpnt->device->lun, (struct scsi_lun *)pScsiReq->LUN); 1483 pScsiReq->Control = cpu_to_le32(scsictl); 1484 1485 /* 1486 * Write SCSI CDB into the message 1487 */ 1488 cmd_len = SCpnt->cmd_len; 1489 for (ii=0; ii < cmd_len; ii++) 1490 pScsiReq->CDB[ii] = SCpnt->cmnd[ii]; 1491 1492 for (ii=cmd_len; ii < 16; ii++) 1493 pScsiReq->CDB[ii] = 0; 1494 1495 /* DataLength */ 1496 pScsiReq->DataLength = cpu_to_le32(datalen); 1497 1498 /* SenseBuffer low address */ 1499 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma 1500 + (my_idx * MPT_SENSE_BUFFER_ALLOC)); 1501 1502 /* Now add the SG list 1503 * Always have a SGE even if null length. 1504 */ 1505 if (datalen == 0) { 1506 /* Add a NULL SGE */ 1507 ioc->add_sge((char *)&pScsiReq->SGL, 1508 MPT_SGE_FLAGS_SSIMPLE_READ | 0, 1509 (dma_addr_t) -1); 1510 } else { 1511 /* Add a 32 or 64 bit SGE */ 1512 if (mptscsih_AddSGE(ioc, SCpnt, pScsiReq, my_idx) != SUCCESS) 1513 goto fail; 1514 } 1515 1516 SCpnt->host_scribble = (unsigned char *)mf; 1517 mptscsih_set_scsi_lookup(ioc, my_idx, SCpnt); 1518 1519 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf); 1520 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Issued SCSI cmd (%p) mf=%p idx=%d\n", 1521 ioc->name, SCpnt, mf, my_idx)); 1522 DBG_DUMP_REQUEST_FRAME(ioc, (u32 *)mf); 1523 return 0; 1524 1525 fail: 1526 mptscsih_freeChainBuffers(ioc, my_idx); 1527 mpt_free_msg_frame(ioc, mf); 1528 return SCSI_MLQUEUE_HOST_BUSY; 1529 } 1530 1531 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1532 /* 1533 * mptscsih_freeChainBuffers - Function to free chain buffers associated 1534 * with a SCSI IO request 1535 * @hd: Pointer to the MPT_SCSI_HOST instance 1536 * @req_idx: Index of the SCSI IO request frame. 1537 * 1538 * Called if SG chain buffer allocation fails and mptscsih callbacks. 1539 * No return. 1540 */ 1541 static void 1542 mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx) 1543 { 1544 MPT_FRAME_HDR *chain; 1545 unsigned long flags; 1546 int chain_idx; 1547 int next; 1548 1549 /* Get the first chain index and reset 1550 * tracker state. 1551 */ 1552 chain_idx = ioc->ReqToChain[req_idx]; 1553 ioc->ReqToChain[req_idx] = MPT_HOST_NO_CHAIN; 1554 1555 while (chain_idx != MPT_HOST_NO_CHAIN) { 1556 1557 /* Save the next chain buffer index */ 1558 next = ioc->ChainToChain[chain_idx]; 1559 1560 /* Free this chain buffer and reset 1561 * tracker 1562 */ 1563 ioc->ChainToChain[chain_idx] = MPT_HOST_NO_CHAIN; 1564 1565 chain = (MPT_FRAME_HDR *) (ioc->ChainBuffer 1566 + (chain_idx * ioc->req_sz)); 1567 1568 spin_lock_irqsave(&ioc->FreeQlock, flags); 1569 list_add_tail(&chain->u.frame.linkage.list, &ioc->FreeChainQ); 1570 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1571 1572 dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FreeChainBuffers (index %d)\n", 1573 ioc->name, chain_idx)); 1574 1575 /* handle next */ 1576 chain_idx = next; 1577 } 1578 return; 1579 } 1580 1581 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1582 /* 1583 * Reset Handling 1584 */ 1585 1586 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1587 /** 1588 * mptscsih_IssueTaskMgmt - Generic send Task Management function. 1589 * @hd: Pointer to MPT_SCSI_HOST structure 1590 * @type: Task Management type 1591 * @channel: channel number for task management 1592 * @id: Logical Target ID for reset (if appropriate) 1593 * @lun: Logical Unit for reset (if appropriate) 1594 * @ctx2abort: Context for the task to be aborted (if appropriate) 1595 * @timeout: timeout for task management control 1596 * 1597 * Remark: _HardResetHandler can be invoked from an interrupt thread (timer) 1598 * or a non-interrupt thread. In the former, must not call schedule(). 1599 * 1600 * Not all fields are meaningfull for all task types. 1601 * 1602 * Returns 0 for SUCCESS, or FAILED. 1603 * 1604 **/ 1605 int 1606 mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, 1607 int ctx2abort, ulong timeout) 1608 { 1609 MPT_FRAME_HDR *mf; 1610 SCSITaskMgmt_t *pScsiTm; 1611 int ii; 1612 int retval; 1613 MPT_ADAPTER *ioc = hd->ioc; 1614 unsigned long timeleft; 1615 u8 issue_hard_reset; 1616 u32 ioc_raw_state; 1617 unsigned long time_count; 1618 1619 issue_hard_reset = 0; 1620 ioc_raw_state = mpt_GetIocState(ioc, 0); 1621 1622 if ((ioc_raw_state & MPI_IOC_STATE_MASK) != MPI_IOC_STATE_OPERATIONAL) { 1623 printk(MYIOC_s_WARN_FMT 1624 "TaskMgmt type=%x: IOC Not operational (0x%x)!\n", 1625 ioc->name, type, ioc_raw_state); 1626 printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n", 1627 ioc->name, __func__); 1628 if (mpt_HardResetHandler(ioc, CAN_SLEEP) < 0) 1629 printk(MYIOC_s_WARN_FMT "TaskMgmt HardReset " 1630 "FAILED!!\n", ioc->name); 1631 return 0; 1632 } 1633 1634 /* DOORBELL ACTIVE check is not required if 1635 * MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q is supported. 1636 */ 1637 1638 if (!((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) 1639 && (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) && 1640 (ioc_raw_state & MPI_DOORBELL_ACTIVE)) { 1641 printk(MYIOC_s_WARN_FMT 1642 "TaskMgmt type=%x: ioc_state: " 1643 "DOORBELL_ACTIVE (0x%x)!\n", 1644 ioc->name, type, ioc_raw_state); 1645 return FAILED; 1646 } 1647 1648 mutex_lock(&ioc->taskmgmt_cmds.mutex); 1649 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) { 1650 mf = NULL; 1651 retval = FAILED; 1652 goto out; 1653 } 1654 1655 /* Return Fail to calling function if no message frames available. 1656 */ 1657 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) { 1658 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 1659 "TaskMgmt no msg frames!!\n", ioc->name)); 1660 retval = FAILED; 1661 mpt_clear_taskmgmt_in_progress_flag(ioc); 1662 goto out; 1663 } 1664 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n", 1665 ioc->name, mf)); 1666 1667 /* Format the Request 1668 */ 1669 pScsiTm = (SCSITaskMgmt_t *) mf; 1670 pScsiTm->TargetID = id; 1671 pScsiTm->Bus = channel; 1672 pScsiTm->ChainOffset = 0; 1673 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT; 1674 1675 pScsiTm->Reserved = 0; 1676 pScsiTm->TaskType = type; 1677 pScsiTm->Reserved1 = 0; 1678 pScsiTm->MsgFlags = (type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) 1679 ? MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION : 0; 1680 1681 int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN); 1682 1683 for (ii=0; ii < 7; ii++) 1684 pScsiTm->Reserved2[ii] = 0; 1685 1686 pScsiTm->TaskMsgContext = ctx2abort; 1687 1688 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt: ctx2abort (0x%08x) " 1689 "task_type = 0x%02X, timeout = %ld\n", ioc->name, ctx2abort, 1690 type, timeout)); 1691 1692 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm); 1693 1694 INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status) 1695 time_count = jiffies; 1696 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) && 1697 (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) 1698 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf); 1699 else { 1700 retval = mpt_send_handshake_request(ioc->TaskCtx, ioc, 1701 sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP); 1702 if (retval) { 1703 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT 1704 "TaskMgmt handshake FAILED!(mf=%p, rc=%d) \n", 1705 ioc->name, mf, retval)); 1706 mpt_free_msg_frame(ioc, mf); 1707 mpt_clear_taskmgmt_in_progress_flag(ioc); 1708 goto out; 1709 } 1710 } 1711 1712 timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done, 1713 timeout*HZ); 1714 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) { 1715 retval = FAILED; 1716 dtmprintk(ioc, printk(MYIOC_s_ERR_FMT 1717 "TaskMgmt TIMED OUT!(mf=%p)\n", ioc->name, mf)); 1718 mpt_clear_taskmgmt_in_progress_flag(ioc); 1719 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) 1720 goto out; 1721 issue_hard_reset = 1; 1722 goto out; 1723 } 1724 1725 retval = mptscsih_taskmgmt_reply(ioc, type, 1726 (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply); 1727 1728 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1729 "TaskMgmt completed (%d seconds)\n", 1730 ioc->name, jiffies_to_msecs(jiffies - time_count)/1000)); 1731 1732 out: 1733 1734 CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status) 1735 if (issue_hard_reset) { 1736 printk(MYIOC_s_WARN_FMT 1737 "Issuing Reset from %s!! doorbell=0x%08x\n", 1738 ioc->name, __func__, mpt_GetIocState(ioc, 0)); 1739 retval = (ioc->bus_type == SAS) ? 1740 mpt_HardResetHandler(ioc, CAN_SLEEP) : 1741 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); 1742 mpt_free_msg_frame(ioc, mf); 1743 } 1744 1745 retval = (retval == 0) ? 0 : FAILED; 1746 mutex_unlock(&ioc->taskmgmt_cmds.mutex); 1747 return retval; 1748 } 1749 EXPORT_SYMBOL(mptscsih_IssueTaskMgmt); 1750 1751 static int 1752 mptscsih_get_tm_timeout(MPT_ADAPTER *ioc) 1753 { 1754 switch (ioc->bus_type) { 1755 case FC: 1756 return 40; 1757 case SAS: 1758 return 30; 1759 case SPI: 1760 default: 1761 return 10; 1762 } 1763 } 1764 1765 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1766 /** 1767 * mptscsih_abort - Abort linux scsi_cmnd routine, new_eh variant 1768 * @SCpnt: Pointer to scsi_cmnd structure, IO to be aborted 1769 * 1770 * (linux scsi_host_template.eh_abort_handler routine) 1771 * 1772 * Returns SUCCESS or FAILED. 1773 **/ 1774 int 1775 mptscsih_abort(struct scsi_cmnd * SCpnt) 1776 { 1777 MPT_SCSI_HOST *hd; 1778 MPT_FRAME_HDR *mf; 1779 u32 ctx2abort; 1780 int scpnt_idx; 1781 int retval; 1782 VirtDevice *vdevice; 1783 MPT_ADAPTER *ioc; 1784 1785 /* If we can't locate our host adapter structure, return FAILED status. 1786 */ 1787 if ((hd = shost_priv(SCpnt->device->host)) == NULL) { 1788 SCpnt->result = DID_RESET << 16; 1789 SCpnt->scsi_done(SCpnt); 1790 printk(KERN_ERR MYNAM ": task abort: " 1791 "can't locate host! (sc=%p)\n", SCpnt); 1792 return FAILED; 1793 } 1794 1795 ioc = hd->ioc; 1796 printk(MYIOC_s_INFO_FMT "attempting task abort! (sc=%p)\n", 1797 ioc->name, SCpnt); 1798 scsi_print_command(SCpnt); 1799 1800 vdevice = SCpnt->device->hostdata; 1801 if (!vdevice || !vdevice->vtarget) { 1802 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1803 "task abort: device has been deleted (sc=%p)\n", 1804 ioc->name, SCpnt)); 1805 SCpnt->result = DID_NO_CONNECT << 16; 1806 SCpnt->scsi_done(SCpnt); 1807 retval = SUCCESS; 1808 goto out; 1809 } 1810 1811 /* Task aborts are not supported for hidden raid components. 1812 */ 1813 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) { 1814 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1815 "task abort: hidden raid component (sc=%p)\n", 1816 ioc->name, SCpnt)); 1817 SCpnt->result = DID_RESET << 16; 1818 retval = FAILED; 1819 goto out; 1820 } 1821 1822 /* Task aborts are not supported for volumes. 1823 */ 1824 if (vdevice->vtarget->raidVolume) { 1825 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1826 "task abort: raid volume (sc=%p)\n", 1827 ioc->name, SCpnt)); 1828 SCpnt->result = DID_RESET << 16; 1829 retval = FAILED; 1830 goto out; 1831 } 1832 1833 /* Find this command 1834 */ 1835 if ((scpnt_idx = SCPNT_TO_LOOKUP_IDX(ioc, SCpnt)) < 0) { 1836 /* Cmd not found in ScsiLookup. 1837 * Do OS callback. 1838 */ 1839 SCpnt->result = DID_RESET << 16; 1840 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "task abort: " 1841 "Command not in the active list! (sc=%p)\n", ioc->name, 1842 SCpnt)); 1843 retval = SUCCESS; 1844 goto out; 1845 } 1846 1847 if (ioc->timeouts < -1) 1848 ioc->timeouts++; 1849 1850 if (mpt_fwfault_debug) 1851 mpt_halt_firmware(ioc); 1852 1853 /* Most important! Set TaskMsgContext to SCpnt's MsgContext! 1854 * (the IO to be ABORT'd) 1855 * 1856 * NOTE: Since we do not byteswap MsgContext, we do not 1857 * swap it here either. It is an opaque cookie to 1858 * the controller, so it does not matter. -DaveM 1859 */ 1860 mf = MPT_INDEX_2_MFPTR(ioc, scpnt_idx); 1861 ctx2abort = mf->u.frame.hwhdr.msgctxu.MsgContext; 1862 retval = mptscsih_IssueTaskMgmt(hd, 1863 MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK, 1864 vdevice->vtarget->channel, 1865 vdevice->vtarget->id, vdevice->lun, 1866 ctx2abort, mptscsih_get_tm_timeout(ioc)); 1867 1868 if (SCPNT_TO_LOOKUP_IDX(ioc, SCpnt) == scpnt_idx) { 1869 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1870 "task abort: command still in active list! (sc=%p)\n", 1871 ioc->name, SCpnt)); 1872 retval = FAILED; 1873 } else { 1874 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1875 "task abort: command cleared from active list! (sc=%p)\n", 1876 ioc->name, SCpnt)); 1877 retval = SUCCESS; 1878 } 1879 1880 out: 1881 printk(MYIOC_s_INFO_FMT "task abort: %s (rv=%04x) (sc=%p)\n", 1882 ioc->name, ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), retval, 1883 SCpnt); 1884 1885 return retval; 1886 } 1887 1888 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1889 /** 1890 * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant 1891 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to 1892 * 1893 * (linux scsi_host_template.eh_dev_reset_handler routine) 1894 * 1895 * Returns SUCCESS or FAILED. 1896 **/ 1897 int 1898 mptscsih_dev_reset(struct scsi_cmnd * SCpnt) 1899 { 1900 MPT_SCSI_HOST *hd; 1901 int retval; 1902 VirtDevice *vdevice; 1903 MPT_ADAPTER *ioc; 1904 1905 /* If we can't locate our host adapter structure, return FAILED status. 1906 */ 1907 if ((hd = shost_priv(SCpnt->device->host)) == NULL){ 1908 printk(KERN_ERR MYNAM ": target reset: " 1909 "Can't locate host! (sc=%p)\n", SCpnt); 1910 return FAILED; 1911 } 1912 1913 ioc = hd->ioc; 1914 printk(MYIOC_s_INFO_FMT "attempting target reset! (sc=%p)\n", 1915 ioc->name, SCpnt); 1916 scsi_print_command(SCpnt); 1917 1918 vdevice = SCpnt->device->hostdata; 1919 if (!vdevice || !vdevice->vtarget) { 1920 retval = 0; 1921 goto out; 1922 } 1923 1924 /* Target reset to hidden raid component is not supported 1925 */ 1926 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) { 1927 retval = FAILED; 1928 goto out; 1929 } 1930 1931 retval = mptscsih_IssueTaskMgmt(hd, 1932 MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 1933 vdevice->vtarget->channel, 1934 vdevice->vtarget->id, 0, 0, 1935 mptscsih_get_tm_timeout(ioc)); 1936 1937 out: 1938 printk (MYIOC_s_INFO_FMT "target reset: %s (sc=%p)\n", 1939 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); 1940 1941 if (retval == 0) 1942 return SUCCESS; 1943 else 1944 return FAILED; 1945 } 1946 1947 1948 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1949 /** 1950 * mptscsih_bus_reset - Perform a SCSI BUS_RESET! new_eh variant 1951 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to 1952 * 1953 * (linux scsi_host_template.eh_bus_reset_handler routine) 1954 * 1955 * Returns SUCCESS or FAILED. 1956 **/ 1957 int 1958 mptscsih_bus_reset(struct scsi_cmnd * SCpnt) 1959 { 1960 MPT_SCSI_HOST *hd; 1961 int retval; 1962 VirtDevice *vdevice; 1963 MPT_ADAPTER *ioc; 1964 1965 /* If we can't locate our host adapter structure, return FAILED status. 1966 */ 1967 if ((hd = shost_priv(SCpnt->device->host)) == NULL){ 1968 printk(KERN_ERR MYNAM ": bus reset: " 1969 "Can't locate host! (sc=%p)\n", SCpnt); 1970 return FAILED; 1971 } 1972 1973 ioc = hd->ioc; 1974 printk(MYIOC_s_INFO_FMT "attempting bus reset! (sc=%p)\n", 1975 ioc->name, SCpnt); 1976 scsi_print_command(SCpnt); 1977 1978 if (ioc->timeouts < -1) 1979 ioc->timeouts++; 1980 1981 vdevice = SCpnt->device->hostdata; 1982 if (!vdevice || !vdevice->vtarget) 1983 return SUCCESS; 1984 retval = mptscsih_IssueTaskMgmt(hd, 1985 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS, 1986 vdevice->vtarget->channel, 0, 0, 0, 1987 mptscsih_get_tm_timeout(ioc)); 1988 1989 printk(MYIOC_s_INFO_FMT "bus reset: %s (sc=%p)\n", 1990 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); 1991 1992 if (retval == 0) 1993 return SUCCESS; 1994 else 1995 return FAILED; 1996 } 1997 1998 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1999 /** 2000 * mptscsih_host_reset - Perform a SCSI host adapter RESET (new_eh variant) 2001 * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to 2002 * 2003 * (linux scsi_host_template.eh_host_reset_handler routine) 2004 * 2005 * Returns SUCCESS or FAILED. 2006 */ 2007 int 2008 mptscsih_host_reset(struct scsi_cmnd *SCpnt) 2009 { 2010 MPT_SCSI_HOST * hd; 2011 int status = SUCCESS; 2012 MPT_ADAPTER *ioc; 2013 int retval; 2014 2015 /* If we can't locate the host to reset, then we failed. */ 2016 if ((hd = shost_priv(SCpnt->device->host)) == NULL){ 2017 printk(KERN_ERR MYNAM ": host reset: " 2018 "Can't locate host! (sc=%p)\n", SCpnt); 2019 return FAILED; 2020 } 2021 2022 /* make sure we have no outstanding commands at this stage */ 2023 mptscsih_flush_running_cmds(hd); 2024 2025 ioc = hd->ioc; 2026 printk(MYIOC_s_INFO_FMT "attempting host reset! (sc=%p)\n", 2027 ioc->name, SCpnt); 2028 2029 /* If our attempts to reset the host failed, then return a failed 2030 * status. The host will be taken off line by the SCSI mid-layer. 2031 */ 2032 retval = mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); 2033 if (retval < 0) 2034 status = FAILED; 2035 else 2036 status = SUCCESS; 2037 2038 printk(MYIOC_s_INFO_FMT "host reset: %s (sc=%p)\n", 2039 ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); 2040 2041 return status; 2042 } 2043 2044 static int 2045 mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type, 2046 SCSITaskMgmtReply_t *pScsiTmReply) 2047 { 2048 u16 iocstatus; 2049 u32 termination_count; 2050 int retval; 2051 2052 if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) { 2053 retval = FAILED; 2054 goto out; 2055 } 2056 2057 DBG_DUMP_TM_REPLY_FRAME(ioc, (u32 *)pScsiTmReply); 2058 2059 iocstatus = le16_to_cpu(pScsiTmReply->IOCStatus) & MPI_IOCSTATUS_MASK; 2060 termination_count = le32_to_cpu(pScsiTmReply->TerminationCount); 2061 2062 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2063 "TaskMgmt fw_channel = %d, fw_id = %d, task_type = 0x%02X,\n" 2064 "\tiocstatus = 0x%04X, loginfo = 0x%08X, response_code = 0x%02X,\n" 2065 "\tterm_cmnds = %d\n", ioc->name, pScsiTmReply->Bus, 2066 pScsiTmReply->TargetID, type, le16_to_cpu(pScsiTmReply->IOCStatus), 2067 le32_to_cpu(pScsiTmReply->IOCLogInfo), pScsiTmReply->ResponseCode, 2068 termination_count)); 2069 2070 if (ioc->facts.MsgVersion >= MPI_VERSION_01_05 && 2071 pScsiTmReply->ResponseCode) 2072 mptscsih_taskmgmt_response_code(ioc, 2073 pScsiTmReply->ResponseCode); 2074 2075 if (iocstatus == MPI_IOCSTATUS_SUCCESS) { 2076 retval = 0; 2077 goto out; 2078 } 2079 2080 retval = FAILED; 2081 if (type == MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK) { 2082 if (termination_count == 1) 2083 retval = 0; 2084 goto out; 2085 } 2086 2087 if (iocstatus == MPI_IOCSTATUS_SCSI_TASK_TERMINATED || 2088 iocstatus == MPI_IOCSTATUS_SCSI_IOC_TERMINATED) 2089 retval = 0; 2090 2091 out: 2092 return retval; 2093 } 2094 2095 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2096 void 2097 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code) 2098 { 2099 char *desc; 2100 2101 switch (response_code) { 2102 case MPI_SCSITASKMGMT_RSP_TM_COMPLETE: 2103 desc = "The task completed."; 2104 break; 2105 case MPI_SCSITASKMGMT_RSP_INVALID_FRAME: 2106 desc = "The IOC received an invalid frame status."; 2107 break; 2108 case MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED: 2109 desc = "The task type is not supported."; 2110 break; 2111 case MPI_SCSITASKMGMT_RSP_TM_FAILED: 2112 desc = "The requested task failed."; 2113 break; 2114 case MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED: 2115 desc = "The task completed successfully."; 2116 break; 2117 case MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN: 2118 desc = "The LUN request is invalid."; 2119 break; 2120 case MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC: 2121 desc = "The task is in the IOC queue and has not been sent to target."; 2122 break; 2123 default: 2124 desc = "unknown"; 2125 break; 2126 } 2127 printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n", 2128 ioc->name, response_code, desc); 2129 } 2130 EXPORT_SYMBOL(mptscsih_taskmgmt_response_code); 2131 2132 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2133 /** 2134 * mptscsih_taskmgmt_complete - Registered with Fusion MPT base driver 2135 * @ioc: Pointer to MPT_ADAPTER structure 2136 * @mf: Pointer to SCSI task mgmt request frame 2137 * @mr: Pointer to SCSI task mgmt reply frame 2138 * 2139 * This routine is called from mptbase.c::mpt_interrupt() at the completion 2140 * of any SCSI task management request. 2141 * This routine is registered with the MPT (base) driver at driver 2142 * load/init time via the mpt_register() API call. 2143 * 2144 * Returns 1 indicating alloc'd request frame ptr should be freed. 2145 **/ 2146 int 2147 mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, 2148 MPT_FRAME_HDR *mr) 2149 { 2150 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2151 "TaskMgmt completed (mf=%p, mr=%p)\n", ioc->name, mf, mr)); 2152 2153 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD; 2154 2155 if (!mr) 2156 goto out; 2157 2158 ioc->taskmgmt_cmds.status |= MPT_MGMT_STATUS_RF_VALID; 2159 memcpy(ioc->taskmgmt_cmds.reply, mr, 2160 min(MPT_DEFAULT_FRAME_SIZE, 4 * mr->u.reply.MsgLength)); 2161 out: 2162 if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_PENDING) { 2163 mpt_clear_taskmgmt_in_progress_flag(ioc); 2164 ioc->taskmgmt_cmds.status &= ~MPT_MGMT_STATUS_PENDING; 2165 complete(&ioc->taskmgmt_cmds.done); 2166 if (ioc->bus_type == SAS) 2167 ioc->schedule_target_reset(ioc); 2168 return 1; 2169 } 2170 return 0; 2171 } 2172 2173 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2174 /* 2175 * This is anyones guess quite frankly. 2176 */ 2177 int 2178 mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev, 2179 sector_t capacity, int geom[]) 2180 { 2181 int heads; 2182 int sectors; 2183 sector_t cylinders; 2184 ulong dummy; 2185 2186 heads = 64; 2187 sectors = 32; 2188 2189 dummy = heads * sectors; 2190 cylinders = capacity; 2191 sector_div(cylinders,dummy); 2192 2193 /* 2194 * Handle extended translation size for logical drives 2195 * > 1Gb 2196 */ 2197 if ((ulong)capacity >= 0x200000) { 2198 heads = 255; 2199 sectors = 63; 2200 dummy = heads * sectors; 2201 cylinders = capacity; 2202 sector_div(cylinders,dummy); 2203 } 2204 2205 /* return result */ 2206 geom[0] = heads; 2207 geom[1] = sectors; 2208 geom[2] = cylinders; 2209 2210 return 0; 2211 } 2212 2213 /* Search IOC page 3 to determine if this is hidden physical disk 2214 * 2215 */ 2216 int 2217 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id) 2218 { 2219 struct inactive_raid_component_info *component_info; 2220 int i, j; 2221 RaidPhysDiskPage1_t *phys_disk; 2222 int rc = 0; 2223 int num_paths; 2224 2225 if (!ioc->raid_data.pIocPg3) 2226 goto out; 2227 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2228 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) && 2229 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) { 2230 rc = 1; 2231 goto out; 2232 } 2233 } 2234 2235 if (ioc->bus_type != SAS) 2236 goto out; 2237 2238 /* 2239 * Check if dual path 2240 */ 2241 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2242 num_paths = mpt_raid_phys_disk_get_num_paths(ioc, 2243 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum); 2244 if (num_paths < 2) 2245 continue; 2246 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) + 2247 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL); 2248 if (!phys_disk) 2249 continue; 2250 if ((mpt_raid_phys_disk_pg1(ioc, 2251 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum, 2252 phys_disk))) { 2253 kfree(phys_disk); 2254 continue; 2255 } 2256 for (j = 0; j < num_paths; j++) { 2257 if ((phys_disk->Path[j].Flags & 2258 MPI_RAID_PHYSDISK1_FLAG_INVALID)) 2259 continue; 2260 if ((phys_disk->Path[j].Flags & 2261 MPI_RAID_PHYSDISK1_FLAG_BROKEN)) 2262 continue; 2263 if ((id == phys_disk->Path[j].PhysDiskID) && 2264 (channel == phys_disk->Path[j].PhysDiskBus)) { 2265 rc = 1; 2266 kfree(phys_disk); 2267 goto out; 2268 } 2269 } 2270 kfree(phys_disk); 2271 } 2272 2273 2274 /* 2275 * Check inactive list for matching phys disks 2276 */ 2277 if (list_empty(&ioc->raid_data.inactive_list)) 2278 goto out; 2279 2280 mutex_lock(&ioc->raid_data.inactive_list_mutex); 2281 list_for_each_entry(component_info, &ioc->raid_data.inactive_list, 2282 list) { 2283 if ((component_info->d.PhysDiskID == id) && 2284 (component_info->d.PhysDiskBus == channel)) 2285 rc = 1; 2286 } 2287 mutex_unlock(&ioc->raid_data.inactive_list_mutex); 2288 2289 out: 2290 return rc; 2291 } 2292 EXPORT_SYMBOL(mptscsih_is_phys_disk); 2293 2294 u8 2295 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id) 2296 { 2297 struct inactive_raid_component_info *component_info; 2298 int i, j; 2299 RaidPhysDiskPage1_t *phys_disk; 2300 int rc = -ENXIO; 2301 int num_paths; 2302 2303 if (!ioc->raid_data.pIocPg3) 2304 goto out; 2305 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2306 if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) && 2307 (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) { 2308 rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum; 2309 goto out; 2310 } 2311 } 2312 2313 if (ioc->bus_type != SAS) 2314 goto out; 2315 2316 /* 2317 * Check if dual path 2318 */ 2319 for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { 2320 num_paths = mpt_raid_phys_disk_get_num_paths(ioc, 2321 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum); 2322 if (num_paths < 2) 2323 continue; 2324 phys_disk = kzalloc(offsetof(RaidPhysDiskPage1_t, Path) + 2325 (num_paths * sizeof(RAID_PHYS_DISK1_PATH)), GFP_KERNEL); 2326 if (!phys_disk) 2327 continue; 2328 if ((mpt_raid_phys_disk_pg1(ioc, 2329 ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum, 2330 phys_disk))) { 2331 kfree(phys_disk); 2332 continue; 2333 } 2334 for (j = 0; j < num_paths; j++) { 2335 if ((phys_disk->Path[j].Flags & 2336 MPI_RAID_PHYSDISK1_FLAG_INVALID)) 2337 continue; 2338 if ((phys_disk->Path[j].Flags & 2339 MPI_RAID_PHYSDISK1_FLAG_BROKEN)) 2340 continue; 2341 if ((id == phys_disk->Path[j].PhysDiskID) && 2342 (channel == phys_disk->Path[j].PhysDiskBus)) { 2343 rc = phys_disk->PhysDiskNum; 2344 kfree(phys_disk); 2345 goto out; 2346 } 2347 } 2348 kfree(phys_disk); 2349 } 2350 2351 /* 2352 * Check inactive list for matching phys disks 2353 */ 2354 if (list_empty(&ioc->raid_data.inactive_list)) 2355 goto out; 2356 2357 mutex_lock(&ioc->raid_data.inactive_list_mutex); 2358 list_for_each_entry(component_info, &ioc->raid_data.inactive_list, 2359 list) { 2360 if ((component_info->d.PhysDiskID == id) && 2361 (component_info->d.PhysDiskBus == channel)) 2362 rc = component_info->d.PhysDiskNum; 2363 } 2364 mutex_unlock(&ioc->raid_data.inactive_list_mutex); 2365 2366 out: 2367 return rc; 2368 } 2369 EXPORT_SYMBOL(mptscsih_raid_id_to_num); 2370 2371 /* 2372 * OS entry point to allow for host driver to free allocated memory 2373 * Called if no device present or device being unloaded 2374 */ 2375 void 2376 mptscsih_slave_destroy(struct scsi_device *sdev) 2377 { 2378 struct Scsi_Host *host = sdev->host; 2379 MPT_SCSI_HOST *hd = shost_priv(host); 2380 VirtTarget *vtarget; 2381 VirtDevice *vdevice; 2382 struct scsi_target *starget; 2383 2384 starget = scsi_target(sdev); 2385 vtarget = starget->hostdata; 2386 vdevice = sdev->hostdata; 2387 if (!vdevice) 2388 return; 2389 2390 mptscsih_search_running_cmds(hd, vdevice); 2391 vtarget->num_luns--; 2392 mptscsih_synchronize_cache(hd, vdevice); 2393 kfree(vdevice); 2394 sdev->hostdata = NULL; 2395 } 2396 2397 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2398 /* 2399 * mptscsih_change_queue_depth - This function will set a devices queue depth 2400 * @sdev: per scsi_device pointer 2401 * @qdepth: requested queue depth 2402 * @reason: calling context 2403 * 2404 * Adding support for new 'change_queue_depth' api. 2405 */ 2406 int 2407 mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) 2408 { 2409 MPT_SCSI_HOST *hd = shost_priv(sdev->host); 2410 VirtTarget *vtarget; 2411 struct scsi_target *starget; 2412 int max_depth; 2413 int tagged; 2414 MPT_ADAPTER *ioc = hd->ioc; 2415 2416 starget = scsi_target(sdev); 2417 vtarget = starget->hostdata; 2418 2419 if (reason != SCSI_QDEPTH_DEFAULT) 2420 return -EOPNOTSUPP; 2421 2422 if (ioc->bus_type == SPI) { 2423 if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)) 2424 max_depth = 1; 2425 else if (sdev->type == TYPE_DISK && 2426 vtarget->minSyncFactor <= MPT_ULTRA160) 2427 max_depth = MPT_SCSI_CMD_PER_DEV_HIGH; 2428 else 2429 max_depth = MPT_SCSI_CMD_PER_DEV_LOW; 2430 } else 2431 max_depth = ioc->sh->can_queue; 2432 2433 if (!sdev->tagged_supported) 2434 max_depth = 1; 2435 2436 if (qdepth > max_depth) 2437 qdepth = max_depth; 2438 if (qdepth == 1) 2439 tagged = 0; 2440 else 2441 tagged = MSG_SIMPLE_TAG; 2442 2443 scsi_adjust_queue_depth(sdev, tagged, qdepth); 2444 return sdev->queue_depth; 2445 } 2446 2447 /* 2448 * OS entry point to adjust the queue_depths on a per-device basis. 2449 * Called once per device the bus scan. Use it to force the queue_depth 2450 * member to 1 if a device does not support Q tags. 2451 * Return non-zero if fails. 2452 */ 2453 int 2454 mptscsih_slave_configure(struct scsi_device *sdev) 2455 { 2456 struct Scsi_Host *sh = sdev->host; 2457 VirtTarget *vtarget; 2458 VirtDevice *vdevice; 2459 struct scsi_target *starget; 2460 MPT_SCSI_HOST *hd = shost_priv(sh); 2461 MPT_ADAPTER *ioc = hd->ioc; 2462 2463 starget = scsi_target(sdev); 2464 vtarget = starget->hostdata; 2465 vdevice = sdev->hostdata; 2466 2467 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2468 "device @ %p, channel=%d, id=%d, lun=%d\n", 2469 ioc->name, sdev, sdev->channel, sdev->id, sdev->lun)); 2470 if (ioc->bus_type == SPI) 2471 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2472 "sdtr %d wdtr %d ppr %d inq length=%d\n", 2473 ioc->name, sdev->sdtr, sdev->wdtr, 2474 sdev->ppr, sdev->inquiry_len)); 2475 2476 vdevice->configured_lun = 1; 2477 2478 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2479 "Queue depth=%d, tflags=%x\n", 2480 ioc->name, sdev->queue_depth, vtarget->tflags)); 2481 2482 if (ioc->bus_type == SPI) 2483 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2484 "negoFlags=%x, maxOffset=%x, SyncFactor=%x\n", 2485 ioc->name, vtarget->negoFlags, vtarget->maxOffset, 2486 vtarget->minSyncFactor)); 2487 2488 mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH, 2489 SCSI_QDEPTH_DEFAULT); 2490 dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2491 "tagged %d, simple %d, ordered %d\n", 2492 ioc->name,sdev->tagged_supported, sdev->simple_tags, 2493 sdev->ordered_tags)); 2494 2495 blk_queue_dma_alignment (sdev->request_queue, 512 - 1); 2496 2497 return 0; 2498 } 2499 2500 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2501 /* 2502 * Private routines... 2503 */ 2504 2505 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2506 /* Utility function to copy sense data from the scsi_cmnd buffer 2507 * to the FC and SCSI target structures. 2508 * 2509 */ 2510 static void 2511 mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR *mf, SCSIIOReply_t *pScsiReply) 2512 { 2513 VirtDevice *vdevice; 2514 SCSIIORequest_t *pReq; 2515 u32 sense_count = le32_to_cpu(pScsiReply->SenseCount); 2516 MPT_ADAPTER *ioc = hd->ioc; 2517 2518 /* Get target structure 2519 */ 2520 pReq = (SCSIIORequest_t *) mf; 2521 vdevice = sc->device->hostdata; 2522 2523 if (sense_count) { 2524 u8 *sense_data; 2525 int req_index; 2526 2527 /* Copy the sense received into the scsi command block. */ 2528 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 2529 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC)); 2530 memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc)); 2531 2532 /* Log SMART data (asc = 0x5D, non-IM case only) if required. 2533 */ 2534 if ((ioc->events) && (ioc->eventTypes & (1 << MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE))) { 2535 if ((sense_data[12] == 0x5D) && (vdevice->vtarget->raidVolume == 0)) { 2536 int idx; 2537 2538 idx = ioc->eventContext % MPTCTL_EVENT_LOG_SIZE; 2539 ioc->events[idx].event = MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE; 2540 ioc->events[idx].eventContext = ioc->eventContext; 2541 2542 ioc->events[idx].data[0] = (pReq->LUN[1] << 24) | 2543 (MPI_EVENT_SCSI_DEV_STAT_RC_SMART_DATA << 16) | 2544 (sc->device->channel << 8) | sc->device->id; 2545 2546 ioc->events[idx].data[1] = (sense_data[13] << 8) | sense_data[12]; 2547 2548 ioc->eventContext++; 2549 if (ioc->pcidev->vendor == 2550 PCI_VENDOR_ID_IBM) { 2551 mptscsih_issue_sep_command(ioc, 2552 vdevice->vtarget, MPI_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT); 2553 vdevice->vtarget->tflags |= 2554 MPT_TARGET_FLAGS_LED_ON; 2555 } 2556 } 2557 } 2558 } else { 2559 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hmmm... SenseData len=0! (?)\n", 2560 ioc->name)); 2561 } 2562 } 2563 2564 /** 2565 * mptscsih_get_scsi_lookup - retrieves scmd entry 2566 * @ioc: Pointer to MPT_ADAPTER structure 2567 * @i: index into the array 2568 * 2569 * Returns the scsi_cmd pointer 2570 */ 2571 struct scsi_cmnd * 2572 mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i) 2573 { 2574 unsigned long flags; 2575 struct scsi_cmnd *scmd; 2576 2577 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2578 scmd = ioc->ScsiLookup[i]; 2579 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2580 2581 return scmd; 2582 } 2583 EXPORT_SYMBOL(mptscsih_get_scsi_lookup); 2584 2585 /** 2586 * mptscsih_getclear_scsi_lookup - retrieves and clears scmd entry from ScsiLookup[] array list 2587 * @ioc: Pointer to MPT_ADAPTER structure 2588 * @i: index into the array 2589 * 2590 * Returns the scsi_cmd pointer 2591 * 2592 **/ 2593 static struct scsi_cmnd * 2594 mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i) 2595 { 2596 unsigned long flags; 2597 struct scsi_cmnd *scmd; 2598 2599 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2600 scmd = ioc->ScsiLookup[i]; 2601 ioc->ScsiLookup[i] = NULL; 2602 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2603 2604 return scmd; 2605 } 2606 2607 /** 2608 * mptscsih_set_scsi_lookup - write a scmd entry into the ScsiLookup[] array list 2609 * 2610 * @ioc: Pointer to MPT_ADAPTER structure 2611 * @i: index into the array 2612 * @scmd: scsi_cmnd pointer 2613 * 2614 **/ 2615 static void 2616 mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd) 2617 { 2618 unsigned long flags; 2619 2620 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2621 ioc->ScsiLookup[i] = scmd; 2622 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2623 } 2624 2625 /** 2626 * SCPNT_TO_LOOKUP_IDX - searches for a given scmd in the ScsiLookup[] array list 2627 * @ioc: Pointer to MPT_ADAPTER structure 2628 * @sc: scsi_cmnd pointer 2629 */ 2630 static int 2631 SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *sc) 2632 { 2633 unsigned long flags; 2634 int i, index=-1; 2635 2636 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); 2637 for (i = 0; i < ioc->req_depth; i++) { 2638 if (ioc->ScsiLookup[i] == sc) { 2639 index = i; 2640 goto out; 2641 } 2642 } 2643 2644 out: 2645 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); 2646 return index; 2647 } 2648 2649 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2650 int 2651 mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 2652 { 2653 MPT_SCSI_HOST *hd; 2654 2655 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL) 2656 return 0; 2657 2658 hd = shost_priv(ioc->sh); 2659 switch (reset_phase) { 2660 case MPT_IOC_SETUP_RESET: 2661 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2662 "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__)); 2663 break; 2664 case MPT_IOC_PRE_RESET: 2665 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2666 "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__)); 2667 mptscsih_flush_running_cmds(hd); 2668 break; 2669 case MPT_IOC_POST_RESET: 2670 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2671 "%s: MPT_IOC_POST_RESET\n", ioc->name, __func__)); 2672 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING) { 2673 ioc->internal_cmds.status |= 2674 MPT_MGMT_STATUS_DID_IOCRESET; 2675 complete(&ioc->internal_cmds.done); 2676 } 2677 break; 2678 default: 2679 break; 2680 } 2681 return 1; /* currently means nothing really */ 2682 } 2683 2684 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2685 int 2686 mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 2687 { 2688 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 2689 2690 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2691 "MPT event (=%02Xh) routed to SCSI host driver!\n", 2692 ioc->name, event)); 2693 2694 if ((event == MPI_EVENT_IOC_BUS_RESET || 2695 event == MPI_EVENT_EXT_BUS_RESET) && 2696 (ioc->bus_type == SPI) && (ioc->soft_resets < -1)) 2697 ioc->soft_resets++; 2698 2699 return 1; /* currently means nothing really */ 2700 } 2701 2702 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2703 /* 2704 * Bus Scan and Domain Validation functionality ... 2705 */ 2706 2707 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2708 /* 2709 * mptscsih_scandv_complete - Scan and DV callback routine registered 2710 * to Fustion MPT (base) driver. 2711 * 2712 * @ioc: Pointer to MPT_ADAPTER structure 2713 * @mf: Pointer to original MPT request frame 2714 * @mr: Pointer to MPT reply frame (NULL if TurboReply) 2715 * 2716 * This routine is called from mpt.c::mpt_interrupt() at the completion 2717 * of any SCSI IO request. 2718 * This routine is registered with the Fusion MPT (base) driver at driver 2719 * load/init time via the mpt_register() API call. 2720 * 2721 * Returns 1 indicating alloc'd request frame ptr should be freed. 2722 * 2723 * Remark: Sets a completion code and (possibly) saves sense data 2724 * in the IOC member localReply structure. 2725 * Used ONLY for DV and other internal commands. 2726 */ 2727 int 2728 mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, 2729 MPT_FRAME_HDR *reply) 2730 { 2731 SCSIIORequest_t *pReq; 2732 SCSIIOReply_t *pReply; 2733 u8 cmd; 2734 u16 req_idx; 2735 u8 *sense_data; 2736 int sz; 2737 2738 ioc->internal_cmds.status |= MPT_MGMT_STATUS_COMMAND_GOOD; 2739 ioc->internal_cmds.completion_code = MPT_SCANDV_GOOD; 2740 if (!reply) 2741 goto out; 2742 2743 pReply = (SCSIIOReply_t *) reply; 2744 pReq = (SCSIIORequest_t *) req; 2745 ioc->internal_cmds.completion_code = 2746 mptscsih_get_completion_code(ioc, req, reply); 2747 ioc->internal_cmds.status |= MPT_MGMT_STATUS_RF_VALID; 2748 memcpy(ioc->internal_cmds.reply, reply, 2749 min(MPT_DEFAULT_FRAME_SIZE, 4 * reply->u.reply.MsgLength)); 2750 cmd = reply->u.hdr.Function; 2751 if (((cmd == MPI_FUNCTION_SCSI_IO_REQUEST) || 2752 (cmd == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) && 2753 (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID)) { 2754 req_idx = le16_to_cpu(req->u.frame.hwhdr.msgctxu.fld.req_idx); 2755 sense_data = ((u8 *)ioc->sense_buf_pool + 2756 (req_idx * MPT_SENSE_BUFFER_ALLOC)); 2757 sz = min_t(int, pReq->SenseBufferLength, 2758 MPT_SENSE_BUFFER_ALLOC); 2759 memcpy(ioc->internal_cmds.sense, sense_data, sz); 2760 } 2761 out: 2762 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_PENDING)) 2763 return 0; 2764 ioc->internal_cmds.status &= ~MPT_MGMT_STATUS_PENDING; 2765 complete(&ioc->internal_cmds.done); 2766 return 1; 2767 } 2768 2769 2770 /** 2771 * mptscsih_get_completion_code - get completion code from MPT request 2772 * @ioc: Pointer to MPT_ADAPTER structure 2773 * @req: Pointer to original MPT request frame 2774 * @reply: Pointer to MPT reply frame (NULL if TurboReply) 2775 * 2776 **/ 2777 static int 2778 mptscsih_get_completion_code(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, 2779 MPT_FRAME_HDR *reply) 2780 { 2781 SCSIIOReply_t *pReply; 2782 MpiRaidActionReply_t *pr; 2783 u8 scsi_status; 2784 u16 status; 2785 int completion_code; 2786 2787 pReply = (SCSIIOReply_t *)reply; 2788 status = le16_to_cpu(pReply->IOCStatus) & MPI_IOCSTATUS_MASK; 2789 scsi_status = pReply->SCSIStatus; 2790 2791 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2792 "IOCStatus=%04xh, SCSIState=%02xh, SCSIStatus=%02xh," 2793 "IOCLogInfo=%08xh\n", ioc->name, status, pReply->SCSIState, 2794 scsi_status, le32_to_cpu(pReply->IOCLogInfo))); 2795 2796 switch (status) { 2797 2798 case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE: /* 0x0043 */ 2799 completion_code = MPT_SCANDV_SELECTION_TIMEOUT; 2800 break; 2801 2802 case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR: /* 0x0046 */ 2803 case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */ 2804 case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */ 2805 case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */ 2806 completion_code = MPT_SCANDV_DID_RESET; 2807 break; 2808 2809 case MPI_IOCSTATUS_BUSY: 2810 case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES: 2811 completion_code = MPT_SCANDV_BUSY; 2812 break; 2813 2814 case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN: /* 0x0045 */ 2815 case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */ 2816 case MPI_IOCSTATUS_SUCCESS: /* 0x0000 */ 2817 if (pReply->Function == MPI_FUNCTION_CONFIG) { 2818 completion_code = MPT_SCANDV_GOOD; 2819 } else if (pReply->Function == MPI_FUNCTION_RAID_ACTION) { 2820 pr = (MpiRaidActionReply_t *)reply; 2821 if (le16_to_cpu(pr->ActionStatus) == 2822 MPI_RAID_ACTION_ASTATUS_SUCCESS) 2823 completion_code = MPT_SCANDV_GOOD; 2824 else 2825 completion_code = MPT_SCANDV_SOME_ERROR; 2826 } else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) 2827 completion_code = MPT_SCANDV_SENSE; 2828 else if (pReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) { 2829 if (req->u.scsireq.CDB[0] == INQUIRY) 2830 completion_code = MPT_SCANDV_ISSUE_SENSE; 2831 else 2832 completion_code = MPT_SCANDV_DID_RESET; 2833 } else if (pReply->SCSIState & MPI_SCSI_STATE_NO_SCSI_STATUS) 2834 completion_code = MPT_SCANDV_DID_RESET; 2835 else if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED) 2836 completion_code = MPT_SCANDV_DID_RESET; 2837 else if (scsi_status == MPI_SCSI_STATUS_BUSY) 2838 completion_code = MPT_SCANDV_BUSY; 2839 else 2840 completion_code = MPT_SCANDV_GOOD; 2841 break; 2842 2843 case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR: /* 0x0047 */ 2844 if (pReply->SCSIState & MPI_SCSI_STATE_TERMINATED) 2845 completion_code = MPT_SCANDV_DID_RESET; 2846 else 2847 completion_code = MPT_SCANDV_SOME_ERROR; 2848 break; 2849 default: 2850 completion_code = MPT_SCANDV_SOME_ERROR; 2851 break; 2852 2853 } /* switch(status) */ 2854 2855 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2856 " completionCode set to %08xh\n", ioc->name, completion_code)); 2857 return completion_code; 2858 } 2859 2860 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 2861 /** 2862 * mptscsih_do_cmd - Do internal command. 2863 * @hd: MPT_SCSI_HOST pointer 2864 * @io: INTERNAL_CMD pointer. 2865 * 2866 * Issue the specified internally generated command and do command 2867 * specific cleanup. For bus scan / DV only. 2868 * NOTES: If command is Inquiry and status is good, 2869 * initialize a target structure, save the data 2870 * 2871 * Remark: Single threaded access only. 2872 * 2873 * Return: 2874 * < 0 if an illegal command or no resources 2875 * 2876 * 0 if good 2877 * 2878 * > 0 if command complete but some type of completion error. 2879 */ 2880 static int 2881 mptscsih_do_cmd(MPT_SCSI_HOST *hd, INTERNAL_CMD *io) 2882 { 2883 MPT_FRAME_HDR *mf; 2884 SCSIIORequest_t *pScsiReq; 2885 int my_idx, ii, dir; 2886 int timeout; 2887 char cmdLen; 2888 char CDB[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; 2889 u8 cmd = io->cmd; 2890 MPT_ADAPTER *ioc = hd->ioc; 2891 int ret = 0; 2892 unsigned long timeleft; 2893 unsigned long flags; 2894 2895 /* don't send internal command during diag reset */ 2896 spin_lock_irqsave(&ioc->taskmgmt_lock, flags); 2897 if (ioc->ioc_reset_in_progress) { 2898 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); 2899 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT 2900 "%s: busy with host reset\n", ioc->name, __func__)); 2901 return MPT_SCANDV_BUSY; 2902 } 2903 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags); 2904 2905 mutex_lock(&ioc->internal_cmds.mutex); 2906 2907 /* Set command specific information 2908 */ 2909 switch (cmd) { 2910 case INQUIRY: 2911 cmdLen = 6; 2912 dir = MPI_SCSIIO_CONTROL_READ; 2913 CDB[0] = cmd; 2914 CDB[4] = io->size; 2915 timeout = 10; 2916 break; 2917 2918 case TEST_UNIT_READY: 2919 cmdLen = 6; 2920 dir = MPI_SCSIIO_CONTROL_READ; 2921 timeout = 10; 2922 break; 2923 2924 case START_STOP: 2925 cmdLen = 6; 2926 dir = MPI_SCSIIO_CONTROL_READ; 2927 CDB[0] = cmd; 2928 CDB[4] = 1; /*Spin up the disk */ 2929 timeout = 15; 2930 break; 2931 2932 case REQUEST_SENSE: 2933 cmdLen = 6; 2934 CDB[0] = cmd; 2935 CDB[4] = io->size; 2936 dir = MPI_SCSIIO_CONTROL_READ; 2937 timeout = 10; 2938 break; 2939 2940 case READ_BUFFER: 2941 cmdLen = 10; 2942 dir = MPI_SCSIIO_CONTROL_READ; 2943 CDB[0] = cmd; 2944 if (io->flags & MPT_ICFLAG_ECHO) { 2945 CDB[1] = 0x0A; 2946 } else { 2947 CDB[1] = 0x02; 2948 } 2949 2950 if (io->flags & MPT_ICFLAG_BUF_CAP) { 2951 CDB[1] |= 0x01; 2952 } 2953 CDB[6] = (io->size >> 16) & 0xFF; 2954 CDB[7] = (io->size >> 8) & 0xFF; 2955 CDB[8] = io->size & 0xFF; 2956 timeout = 10; 2957 break; 2958 2959 case WRITE_BUFFER: 2960 cmdLen = 10; 2961 dir = MPI_SCSIIO_CONTROL_WRITE; 2962 CDB[0] = cmd; 2963 if (io->flags & MPT_ICFLAG_ECHO) { 2964 CDB[1] = 0x0A; 2965 } else { 2966 CDB[1] = 0x02; 2967 } 2968 CDB[6] = (io->size >> 16) & 0xFF; 2969 CDB[7] = (io->size >> 8) & 0xFF; 2970 CDB[8] = io->size & 0xFF; 2971 timeout = 10; 2972 break; 2973 2974 case RESERVE: 2975 cmdLen = 6; 2976 dir = MPI_SCSIIO_CONTROL_READ; 2977 CDB[0] = cmd; 2978 timeout = 10; 2979 break; 2980 2981 case RELEASE: 2982 cmdLen = 6; 2983 dir = MPI_SCSIIO_CONTROL_READ; 2984 CDB[0] = cmd; 2985 timeout = 10; 2986 break; 2987 2988 case SYNCHRONIZE_CACHE: 2989 cmdLen = 10; 2990 dir = MPI_SCSIIO_CONTROL_READ; 2991 CDB[0] = cmd; 2992 // CDB[1] = 0x02; /* set immediate bit */ 2993 timeout = 10; 2994 break; 2995 2996 default: 2997 /* Error Case */ 2998 ret = -EFAULT; 2999 goto out; 3000 } 3001 3002 /* Get and Populate a free Frame 3003 * MsgContext set in mpt_get_msg_frame call 3004 */ 3005 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) { 3006 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: No msg frames!\n", 3007 ioc->name, __func__)); 3008 ret = MPT_SCANDV_BUSY; 3009 goto out; 3010 } 3011 3012 pScsiReq = (SCSIIORequest_t *) mf; 3013 3014 /* Get the request index */ 3015 my_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 3016 ADD_INDEX_LOG(my_idx); /* for debug */ 3017 3018 if (io->flags & MPT_ICFLAG_PHYS_DISK) { 3019 pScsiReq->TargetID = io->physDiskNum; 3020 pScsiReq->Bus = 0; 3021 pScsiReq->ChainOffset = 0; 3022 pScsiReq->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH; 3023 } else { 3024 pScsiReq->TargetID = io->id; 3025 pScsiReq->Bus = io->channel; 3026 pScsiReq->ChainOffset = 0; 3027 pScsiReq->Function = MPI_FUNCTION_SCSI_IO_REQUEST; 3028 } 3029 3030 pScsiReq->CDBLength = cmdLen; 3031 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE; 3032 3033 pScsiReq->Reserved = 0; 3034 3035 pScsiReq->MsgFlags = mpt_msg_flags(ioc); 3036 /* MsgContext set in mpt_get_msg_fram call */ 3037 3038 int_to_scsilun(io->lun, (struct scsi_lun *)pScsiReq->LUN); 3039 3040 if (io->flags & MPT_ICFLAG_TAGGED_CMD) 3041 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_SIMPLEQ); 3042 else 3043 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED); 3044 3045 if (cmd == REQUEST_SENSE) { 3046 pScsiReq->Control = cpu_to_le32(dir | MPI_SCSIIO_CONTROL_UNTAGGED); 3047 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 3048 "%s: Untagged! 0x%02x\n", ioc->name, __func__, cmd)); 3049 } 3050 3051 for (ii = 0; ii < 16; ii++) 3052 pScsiReq->CDB[ii] = CDB[ii]; 3053 3054 pScsiReq->DataLength = cpu_to_le32(io->size); 3055 pScsiReq->SenseBufferLowAddr = cpu_to_le32(ioc->sense_buf_low_dma 3056 + (my_idx * MPT_SENSE_BUFFER_ALLOC)); 3057 3058 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT 3059 "%s: Sending Command 0x%02x for fw_channel=%d fw_id=%d lun=%d\n", 3060 ioc->name, __func__, cmd, io->channel, io->id, io->lun)); 3061 3062 if (dir == MPI_SCSIIO_CONTROL_READ) 3063 ioc->add_sge((char *) &pScsiReq->SGL, 3064 MPT_SGE_FLAGS_SSIMPLE_READ | io->size, io->data_dma); 3065 else 3066 ioc->add_sge((char *) &pScsiReq->SGL, 3067 MPT_SGE_FLAGS_SSIMPLE_WRITE | io->size, io->data_dma); 3068 3069 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status) 3070 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf); 3071 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done, 3072 timeout*HZ); 3073 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) { 3074 ret = MPT_SCANDV_DID_RESET; 3075 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT 3076 "%s: TIMED OUT for cmd=0x%02x\n", ioc->name, __func__, 3077 cmd)); 3078 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) { 3079 mpt_free_msg_frame(ioc, mf); 3080 goto out; 3081 } 3082 if (!timeleft) { 3083 printk(MYIOC_s_WARN_FMT 3084 "Issuing Reset from %s!! doorbell=0x%08xh" 3085 " cmd=0x%02x\n", 3086 ioc->name, __func__, mpt_GetIocState(ioc, 0), 3087 cmd); 3088 mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP); 3089 mpt_free_msg_frame(ioc, mf); 3090 } 3091 goto out; 3092 } 3093 3094 ret = ioc->internal_cmds.completion_code; 3095 devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: success, rc=0x%02x\n", 3096 ioc->name, __func__, ret)); 3097 3098 out: 3099 CLEAR_MGMT_STATUS(ioc->internal_cmds.status) 3100 mutex_unlock(&ioc->internal_cmds.mutex); 3101 return ret; 3102 } 3103 3104 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 3105 /** 3106 * mptscsih_synchronize_cache - Send SYNCHRONIZE_CACHE to all disks. 3107 * @hd: Pointer to a SCSI HOST structure 3108 * @vdevice: virtual target device 3109 * 3110 * Uses the ISR, but with special processing. 3111 * MUST be single-threaded. 3112 * 3113 */ 3114 static void 3115 mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice) 3116 { 3117 INTERNAL_CMD iocmd; 3118 3119 /* Ignore hidden raid components, this is handled when the command 3120 * is sent to the volume 3121 */ 3122 if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) 3123 return; 3124 3125 if (vdevice->vtarget->type != TYPE_DISK || vdevice->vtarget->deleted || 3126 !vdevice->configured_lun) 3127 return; 3128 3129 /* Following parameters will not change 3130 * in this routine. 3131 */ 3132 iocmd.cmd = SYNCHRONIZE_CACHE; 3133 iocmd.flags = 0; 3134 iocmd.physDiskNum = -1; 3135 iocmd.data = NULL; 3136 iocmd.data_dma = -1; 3137 iocmd.size = 0; 3138 iocmd.rsvd = iocmd.rsvd2 = 0; 3139 iocmd.channel = vdevice->vtarget->channel; 3140 iocmd.id = vdevice->vtarget->id; 3141 iocmd.lun = vdevice->lun; 3142 3143 mptscsih_do_cmd(hd, &iocmd); 3144 } 3145 3146 static ssize_t 3147 mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr, 3148 char *buf) 3149 { 3150 struct Scsi_Host *host = class_to_shost(dev); 3151 MPT_SCSI_HOST *hd = shost_priv(host); 3152 MPT_ADAPTER *ioc = hd->ioc; 3153 3154 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", 3155 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, 3156 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, 3157 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, 3158 ioc->facts.FWVersion.Word & 0x000000FF); 3159 } 3160 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL); 3161 3162 static ssize_t 3163 mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr, 3164 char *buf) 3165 { 3166 struct Scsi_Host *host = class_to_shost(dev); 3167 MPT_SCSI_HOST *hd = shost_priv(host); 3168 MPT_ADAPTER *ioc = hd->ioc; 3169 3170 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 3171 (ioc->biosVersion & 0xFF000000) >> 24, 3172 (ioc->biosVersion & 0x00FF0000) >> 16, 3173 (ioc->biosVersion & 0x0000FF00) >> 8, 3174 ioc->biosVersion & 0x000000FF); 3175 } 3176 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL); 3177 3178 static ssize_t 3179 mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr, 3180 char *buf) 3181 { 3182 struct Scsi_Host *host = class_to_shost(dev); 3183 MPT_SCSI_HOST *hd = shost_priv(host); 3184 MPT_ADAPTER *ioc = hd->ioc; 3185 3186 return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion); 3187 } 3188 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL); 3189 3190 static ssize_t 3191 mptscsih_version_product_show(struct device *dev, 3192 struct device_attribute *attr, 3193 char *buf) 3194 { 3195 struct Scsi_Host *host = class_to_shost(dev); 3196 MPT_SCSI_HOST *hd = shost_priv(host); 3197 MPT_ADAPTER *ioc = hd->ioc; 3198 3199 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name); 3200 } 3201 static DEVICE_ATTR(version_product, S_IRUGO, 3202 mptscsih_version_product_show, NULL); 3203 3204 static ssize_t 3205 mptscsih_version_nvdata_persistent_show(struct device *dev, 3206 struct device_attribute *attr, 3207 char *buf) 3208 { 3209 struct Scsi_Host *host = class_to_shost(dev); 3210 MPT_SCSI_HOST *hd = shost_priv(host); 3211 MPT_ADAPTER *ioc = hd->ioc; 3212 3213 return snprintf(buf, PAGE_SIZE, "%02xh\n", 3214 ioc->nvdata_version_persistent); 3215 } 3216 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO, 3217 mptscsih_version_nvdata_persistent_show, NULL); 3218 3219 static ssize_t 3220 mptscsih_version_nvdata_default_show(struct device *dev, 3221 struct device_attribute *attr, char *buf) 3222 { 3223 struct Scsi_Host *host = class_to_shost(dev); 3224 MPT_SCSI_HOST *hd = shost_priv(host); 3225 MPT_ADAPTER *ioc = hd->ioc; 3226 3227 return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default); 3228 } 3229 static DEVICE_ATTR(version_nvdata_default, S_IRUGO, 3230 mptscsih_version_nvdata_default_show, NULL); 3231 3232 static ssize_t 3233 mptscsih_board_name_show(struct device *dev, struct device_attribute *attr, 3234 char *buf) 3235 { 3236 struct Scsi_Host *host = class_to_shost(dev); 3237 MPT_SCSI_HOST *hd = shost_priv(host); 3238 MPT_ADAPTER *ioc = hd->ioc; 3239 3240 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name); 3241 } 3242 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL); 3243 3244 static ssize_t 3245 mptscsih_board_assembly_show(struct device *dev, 3246 struct device_attribute *attr, char *buf) 3247 { 3248 struct Scsi_Host *host = class_to_shost(dev); 3249 MPT_SCSI_HOST *hd = shost_priv(host); 3250 MPT_ADAPTER *ioc = hd->ioc; 3251 3252 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly); 3253 } 3254 static DEVICE_ATTR(board_assembly, S_IRUGO, 3255 mptscsih_board_assembly_show, NULL); 3256 3257 static ssize_t 3258 mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr, 3259 char *buf) 3260 { 3261 struct Scsi_Host *host = class_to_shost(dev); 3262 MPT_SCSI_HOST *hd = shost_priv(host); 3263 MPT_ADAPTER *ioc = hd->ioc; 3264 3265 return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer); 3266 } 3267 static DEVICE_ATTR(board_tracer, S_IRUGO, 3268 mptscsih_board_tracer_show, NULL); 3269 3270 static ssize_t 3271 mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr, 3272 char *buf) 3273 { 3274 struct Scsi_Host *host = class_to_shost(dev); 3275 MPT_SCSI_HOST *hd = shost_priv(host); 3276 MPT_ADAPTER *ioc = hd->ioc; 3277 3278 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay); 3279 } 3280 static DEVICE_ATTR(io_delay, S_IRUGO, 3281 mptscsih_io_delay_show, NULL); 3282 3283 static ssize_t 3284 mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr, 3285 char *buf) 3286 { 3287 struct Scsi_Host *host = class_to_shost(dev); 3288 MPT_SCSI_HOST *hd = shost_priv(host); 3289 MPT_ADAPTER *ioc = hd->ioc; 3290 3291 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay); 3292 } 3293 static DEVICE_ATTR(device_delay, S_IRUGO, 3294 mptscsih_device_delay_show, NULL); 3295 3296 static ssize_t 3297 mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr, 3298 char *buf) 3299 { 3300 struct Scsi_Host *host = class_to_shost(dev); 3301 MPT_SCSI_HOST *hd = shost_priv(host); 3302 MPT_ADAPTER *ioc = hd->ioc; 3303 3304 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level); 3305 } 3306 static ssize_t 3307 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr, 3308 const char *buf, size_t count) 3309 { 3310 struct Scsi_Host *host = class_to_shost(dev); 3311 MPT_SCSI_HOST *hd = shost_priv(host); 3312 MPT_ADAPTER *ioc = hd->ioc; 3313 int val = 0; 3314 3315 if (sscanf(buf, "%x", &val) != 1) 3316 return -EINVAL; 3317 3318 ioc->debug_level = val; 3319 printk(MYIOC_s_INFO_FMT "debug_level=%08xh\n", 3320 ioc->name, ioc->debug_level); 3321 return strlen(buf); 3322 } 3323 static DEVICE_ATTR(debug_level, S_IRUGO | S_IWUSR, 3324 mptscsih_debug_level_show, mptscsih_debug_level_store); 3325 3326 struct device_attribute *mptscsih_host_attrs[] = { 3327 &dev_attr_version_fw, 3328 &dev_attr_version_bios, 3329 &dev_attr_version_mpi, 3330 &dev_attr_version_product, 3331 &dev_attr_version_nvdata_persistent, 3332 &dev_attr_version_nvdata_default, 3333 &dev_attr_board_name, 3334 &dev_attr_board_assembly, 3335 &dev_attr_board_tracer, 3336 &dev_attr_io_delay, 3337 &dev_attr_device_delay, 3338 &dev_attr_debug_level, 3339 NULL, 3340 }; 3341 3342 EXPORT_SYMBOL(mptscsih_host_attrs); 3343 3344 EXPORT_SYMBOL(mptscsih_remove); 3345 EXPORT_SYMBOL(mptscsih_shutdown); 3346 #ifdef CONFIG_PM 3347 EXPORT_SYMBOL(mptscsih_suspend); 3348 EXPORT_SYMBOL(mptscsih_resume); 3349 #endif 3350 EXPORT_SYMBOL(mptscsih_proc_info); 3351 EXPORT_SYMBOL(mptscsih_info); 3352 EXPORT_SYMBOL(mptscsih_qcmd); 3353 EXPORT_SYMBOL(mptscsih_slave_destroy); 3354 EXPORT_SYMBOL(mptscsih_slave_configure); 3355 EXPORT_SYMBOL(mptscsih_abort); 3356 EXPORT_SYMBOL(mptscsih_dev_reset); 3357 EXPORT_SYMBOL(mptscsih_bus_reset); 3358 EXPORT_SYMBOL(mptscsih_host_reset); 3359 EXPORT_SYMBOL(mptscsih_bios_param); 3360 EXPORT_SYMBOL(mptscsih_io_done); 3361 EXPORT_SYMBOL(mptscsih_taskmgmt_complete); 3362 EXPORT_SYMBOL(mptscsih_scandv_complete); 3363 EXPORT_SYMBOL(mptscsih_event_process); 3364 EXPORT_SYMBOL(mptscsih_ioc_reset); 3365 EXPORT_SYMBOL(mptscsih_change_queue_depth); 3366 3367 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 3368