1 /* 2 * linux/drivers/message/fusion/mptspi.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 #include <linux/raid_class.h> 59 60 #include <scsi/scsi.h> 61 #include <scsi/scsi_cmnd.h> 62 #include <scsi/scsi_device.h> 63 #include <scsi/scsi_host.h> 64 #include <scsi/scsi_tcq.h> 65 #include <scsi/scsi_transport.h> 66 #include <scsi/scsi_transport_spi.h> 67 #include <scsi/scsi_dbg.h> 68 69 #include "mptbase.h" 70 #include "mptscsih.h" 71 72 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 73 #define my_NAME "Fusion MPT SPI Host driver" 74 #define my_VERSION MPT_LINUX_VERSION_COMMON 75 #define MYNAM "mptspi" 76 77 MODULE_AUTHOR(MODULEAUTHOR); 78 MODULE_DESCRIPTION(my_NAME); 79 MODULE_LICENSE("GPL"); 80 MODULE_VERSION(my_VERSION); 81 82 /* Command line args */ 83 static int mpt_saf_te = MPTSCSIH_SAF_TE; 84 module_param(mpt_saf_te, int, 0); 85 MODULE_PARM_DESC(mpt_saf_te, " Force enabling SEP Processor: enable=1 (default=MPTSCSIH_SAF_TE=0)"); 86 87 static void mptspi_write_offset(struct scsi_target *, int); 88 static void mptspi_write_width(struct scsi_target *, int); 89 static int mptspi_write_spi_device_pg1(struct scsi_target *, 90 struct _CONFIG_PAGE_SCSI_DEVICE_1 *); 91 92 static struct scsi_transport_template *mptspi_transport_template = NULL; 93 94 static u8 mptspiDoneCtx = MPT_MAX_PROTOCOL_DRIVERS; 95 static u8 mptspiTaskCtx = MPT_MAX_PROTOCOL_DRIVERS; 96 static u8 mptspiInternalCtx = MPT_MAX_PROTOCOL_DRIVERS; /* Used only for internal commands */ 97 98 /** 99 * mptspi_setTargetNegoParms - Update the target negotiation parameters 100 * @hd: Pointer to a SCSI Host Structure 101 * @target: per target private data 102 * @sdev: SCSI device 103 * 104 * Update the target negotiation parameters based on the the Inquiry 105 * data, adapter capabilities, and NVRAM settings. 106 **/ 107 static void 108 mptspi_setTargetNegoParms(MPT_SCSI_HOST *hd, VirtTarget *target, 109 struct scsi_device *sdev) 110 { 111 MPT_ADAPTER *ioc = hd->ioc; 112 SpiCfgData *pspi_data = &ioc->spi_data; 113 int id = (int) target->id; 114 int nvram; 115 u8 width = MPT_NARROW; 116 u8 factor = MPT_ASYNC; 117 u8 offset = 0; 118 u8 nfactor; 119 u8 noQas = 1; 120 121 target->negoFlags = pspi_data->noQas; 122 123 if (sdev->scsi_level < SCSI_2) { 124 width = 0; 125 factor = MPT_ULTRA2; 126 offset = pspi_data->maxSyncOffset; 127 target->tflags &= ~MPT_TARGET_FLAGS_Q_YES; 128 } else { 129 if (scsi_device_wide(sdev)) 130 width = 1; 131 132 if (scsi_device_sync(sdev)) { 133 factor = pspi_data->minSyncFactor; 134 if (!scsi_device_dt(sdev)) 135 factor = MPT_ULTRA2; 136 else { 137 if (!scsi_device_ius(sdev) && 138 !scsi_device_qas(sdev)) 139 factor = MPT_ULTRA160; 140 else { 141 factor = MPT_ULTRA320; 142 if (scsi_device_qas(sdev)) { 143 ddvprintk(ioc, 144 printk(MYIOC_s_DEBUG_FMT "Enabling QAS due to " 145 "byte56=%02x on id=%d!\n", ioc->name, 146 scsi_device_qas(sdev), id)); 147 noQas = 0; 148 } 149 if (sdev->type == TYPE_TAPE && 150 scsi_device_ius(sdev)) 151 target->negoFlags |= MPT_TAPE_NEGO_IDP; 152 } 153 } 154 offset = pspi_data->maxSyncOffset; 155 156 /* If RAID, never disable QAS 157 * else if non RAID, do not disable 158 * QAS if bit 1 is set 159 * bit 1 QAS support, non-raid only 160 * bit 0 IU support 161 */ 162 if (target->raidVolume == 1) 163 noQas = 0; 164 } else { 165 factor = MPT_ASYNC; 166 offset = 0; 167 } 168 } 169 170 if (!sdev->tagged_supported) 171 target->tflags &= ~MPT_TARGET_FLAGS_Q_YES; 172 173 /* Update tflags based on NVRAM settings. (SCSI only) 174 */ 175 if (pspi_data->nvram && (pspi_data->nvram[id] != MPT_HOST_NVRAM_INVALID)) { 176 nvram = pspi_data->nvram[id]; 177 nfactor = (nvram & MPT_NVRAM_SYNC_MASK) >> 8; 178 179 if (width) 180 width = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1; 181 182 if (offset > 0) { 183 /* Ensure factor is set to the 184 * maximum of: adapter, nvram, inquiry 185 */ 186 if (nfactor) { 187 if (nfactor < pspi_data->minSyncFactor ) 188 nfactor = pspi_data->minSyncFactor; 189 190 factor = max(factor, nfactor); 191 if (factor == MPT_ASYNC) 192 offset = 0; 193 } else { 194 offset = 0; 195 factor = MPT_ASYNC; 196 } 197 } else { 198 factor = MPT_ASYNC; 199 } 200 } 201 202 /* Make sure data is consistent 203 */ 204 if ((!width) && (factor < MPT_ULTRA2)) 205 factor = MPT_ULTRA2; 206 207 /* Save the data to the target structure. 208 */ 209 target->minSyncFactor = factor; 210 target->maxOffset = offset; 211 target->maxWidth = width; 212 213 spi_min_period(scsi_target(sdev)) = factor; 214 spi_max_offset(scsi_target(sdev)) = offset; 215 spi_max_width(scsi_target(sdev)) = width; 216 217 target->tflags |= MPT_TARGET_FLAGS_VALID_NEGO; 218 219 /* Disable unused features. 220 */ 221 if (!width) 222 target->negoFlags |= MPT_TARGET_NO_NEGO_WIDE; 223 224 if (!offset) 225 target->negoFlags |= MPT_TARGET_NO_NEGO_SYNC; 226 227 if ( factor > MPT_ULTRA320 ) 228 noQas = 0; 229 230 if (noQas && (pspi_data->noQas == 0)) { 231 pspi_data->noQas |= MPT_TARGET_NO_NEGO_QAS; 232 target->negoFlags |= MPT_TARGET_NO_NEGO_QAS; 233 234 /* Disable QAS in a mixed configuration case 235 */ 236 237 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT 238 "Disabling QAS due to noQas=%02x on id=%d!\n", ioc->name, noQas, id)); 239 } 240 } 241 242 /** 243 * mptspi_writeIOCPage4 - write IOC Page 4 244 * @hd: Pointer to a SCSI Host Structure 245 * @channel: channel number 246 * @id: write IOC Page4 for this ID & Bus 247 * 248 * Return: -EAGAIN if unable to obtain a Message Frame 249 * or 0 if success. 250 * 251 * Remark: We do not wait for a return, write pages sequentially. 252 **/ 253 static int 254 mptspi_writeIOCPage4(MPT_SCSI_HOST *hd, u8 channel , u8 id) 255 { 256 MPT_ADAPTER *ioc = hd->ioc; 257 Config_t *pReq; 258 IOCPage4_t *IOCPage4Ptr; 259 MPT_FRAME_HDR *mf; 260 dma_addr_t dataDma; 261 u16 req_idx; 262 u32 frameOffset; 263 u32 flagsLength; 264 int ii; 265 266 /* Get a MF for this command. 267 */ 268 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) { 269 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT 270 "writeIOCPage4 : no msg frames!\n",ioc->name)); 271 return -EAGAIN; 272 } 273 274 /* Set the request and the data pointers. 275 * Place data at end of MF. 276 */ 277 pReq = (Config_t *)mf; 278 279 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 280 frameOffset = ioc->req_sz - sizeof(IOCPage4_t); 281 282 /* Complete the request frame (same for all requests). 283 */ 284 pReq->Action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 285 pReq->Reserved = 0; 286 pReq->ChainOffset = 0; 287 pReq->Function = MPI_FUNCTION_CONFIG; 288 pReq->ExtPageLength = 0; 289 pReq->ExtPageType = 0; 290 pReq->MsgFlags = 0; 291 for (ii=0; ii < 8; ii++) { 292 pReq->Reserved2[ii] = 0; 293 } 294 295 IOCPage4Ptr = ioc->spi_data.pIocPg4; 296 dataDma = ioc->spi_data.IocPg4_dma; 297 ii = IOCPage4Ptr->ActiveSEP++; 298 IOCPage4Ptr->SEP[ii].SEPTargetID = id; 299 IOCPage4Ptr->SEP[ii].SEPBus = channel; 300 pReq->Header = IOCPage4Ptr->Header; 301 pReq->PageAddress = cpu_to_le32(id | (channel << 8 )); 302 303 /* Add a SGE to the config request. 304 */ 305 flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE | 306 (IOCPage4Ptr->Header.PageLength + ii) * 4; 307 308 ioc->add_sge((char *)&pReq->PageBufferSGE, flagsLength, dataDma); 309 310 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT 311 "writeIOCPage4: MaxSEP=%d ActiveSEP=%d id=%d bus=%d\n", 312 ioc->name, IOCPage4Ptr->MaxSEP, IOCPage4Ptr->ActiveSEP, id, channel)); 313 314 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf); 315 316 return 0; 317 } 318 319 /** 320 * mptspi_initTarget - Target, LUN alloc/free functionality. 321 * @hd: Pointer to MPT_SCSI_HOST structure 322 * @vtarget: per target private data 323 * @sdev: SCSI device 324 * 325 * NOTE: It's only SAFE to call this routine if data points to 326 * sane & valid STANDARD INQUIRY data! 327 * 328 * Allocate and initialize memory for this target. 329 * Save inquiry data. 330 * 331 **/ 332 static void 333 mptspi_initTarget(MPT_SCSI_HOST *hd, VirtTarget *vtarget, 334 struct scsi_device *sdev) 335 { 336 337 /* Is LUN supported? If so, upper 2 bits will be 0 338 * in first byte of inquiry data. 339 */ 340 if (sdev->inq_periph_qual != 0) 341 return; 342 343 if (vtarget == NULL) 344 return; 345 346 vtarget->type = sdev->type; 347 348 if ((sdev->type == TYPE_PROCESSOR) && (hd->ioc->spi_data.Saf_Te)) { 349 /* Treat all Processors as SAF-TE if 350 * command line option is set */ 351 vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED; 352 mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id); 353 }else if ((sdev->type == TYPE_PROCESSOR) && 354 !(vtarget->tflags & MPT_TARGET_FLAGS_SAF_TE_ISSUED )) { 355 if (sdev->inquiry_len > 49 ) { 356 if (sdev->inquiry[44] == 'S' && 357 sdev->inquiry[45] == 'A' && 358 sdev->inquiry[46] == 'F' && 359 sdev->inquiry[47] == '-' && 360 sdev->inquiry[48] == 'T' && 361 sdev->inquiry[49] == 'E' ) { 362 vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED; 363 mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id); 364 } 365 } 366 } 367 mptspi_setTargetNegoParms(hd, vtarget, sdev); 368 } 369 370 /** 371 * mptspi_is_raid - Determines whether target is belonging to volume 372 * @hd: Pointer to a SCSI HOST structure 373 * @id: target device id 374 * 375 * Return: 376 * non-zero = true 377 * zero = false 378 * 379 */ 380 static int 381 mptspi_is_raid(struct _MPT_SCSI_HOST *hd, u32 id) 382 { 383 int i, rc = 0; 384 MPT_ADAPTER *ioc = hd->ioc; 385 386 if (!ioc->raid_data.pIocPg2) 387 goto out; 388 389 if (!ioc->raid_data.pIocPg2->NumActiveVolumes) 390 goto out; 391 for (i=0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) { 392 if (ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID == id) { 393 rc = 1; 394 goto out; 395 } 396 } 397 398 out: 399 return rc; 400 } 401 402 static int mptspi_target_alloc(struct scsi_target *starget) 403 { 404 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 405 struct _MPT_SCSI_HOST *hd = shost_priv(shost); 406 VirtTarget *vtarget; 407 MPT_ADAPTER *ioc; 408 409 if (hd == NULL) 410 return -ENODEV; 411 412 ioc = hd->ioc; 413 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); 414 if (!vtarget) 415 return -ENOMEM; 416 417 vtarget->ioc_id = ioc->id; 418 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES; 419 vtarget->id = (u8)starget->id; 420 vtarget->channel = (u8)starget->channel; 421 vtarget->starget = starget; 422 starget->hostdata = vtarget; 423 424 if (starget->channel == 1) { 425 if (mptscsih_is_phys_disk(ioc, 0, starget->id) == 0) 426 return 0; 427 vtarget->tflags |= MPT_TARGET_FLAGS_RAID_COMPONENT; 428 /* The real channel for this device is zero */ 429 vtarget->channel = 0; 430 /* The actual physdisknum (for RAID passthrough) */ 431 vtarget->id = mptscsih_raid_id_to_num(ioc, 0, 432 starget->id); 433 } 434 435 if (starget->channel == 0 && 436 mptspi_is_raid(hd, starget->id)) { 437 vtarget->raidVolume = 1; 438 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT 439 "RAID Volume @ channel=%d id=%d\n", ioc->name, starget->channel, 440 starget->id)); 441 } 442 443 if (ioc->spi_data.nvram && 444 ioc->spi_data.nvram[starget->id] != MPT_HOST_NVRAM_INVALID) { 445 u32 nvram = ioc->spi_data.nvram[starget->id]; 446 spi_min_period(starget) = (nvram & MPT_NVRAM_SYNC_MASK) >> MPT_NVRAM_SYNC_SHIFT; 447 spi_max_width(starget) = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1; 448 } else { 449 spi_min_period(starget) = ioc->spi_data.minSyncFactor; 450 spi_max_width(starget) = ioc->spi_data.maxBusWidth; 451 } 452 spi_max_offset(starget) = ioc->spi_data.maxSyncOffset; 453 454 spi_offset(starget) = 0; 455 spi_period(starget) = 0xFF; 456 mptspi_write_width(starget, 0); 457 458 return 0; 459 } 460 461 static void 462 mptspi_target_destroy(struct scsi_target *starget) 463 { 464 if (starget->hostdata) 465 kfree(starget->hostdata); 466 starget->hostdata = NULL; 467 } 468 469 /** 470 * mptspi_print_write_nego - negotiation parameters debug info that is being sent 471 * @hd: Pointer to a SCSI HOST structure 472 * @starget: SCSI target 473 * @ii: negotiation parameters 474 * 475 */ 476 static void 477 mptspi_print_write_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii) 478 { 479 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Requested = 0x%08x" 480 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n", 481 hd->ioc->name, starget->id, ii, 482 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "", 483 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF), 484 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "", 485 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "", 486 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "", 487 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "", 488 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "", 489 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "", 490 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "", 491 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": "")); 492 } 493 494 /** 495 * mptspi_print_read_nego - negotiation parameters debug info that is being read 496 * @hd: Pointer to a SCSI HOST structure 497 * @starget: SCSI target 498 * @ii: negotiation parameters 499 * 500 */ 501 static void 502 mptspi_print_read_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii) 503 { 504 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Read = 0x%08x" 505 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n", 506 hd->ioc->name, starget->id, ii, 507 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "", 508 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF), 509 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "", 510 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "", 511 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "", 512 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "", 513 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "", 514 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "", 515 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "", 516 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": "")); 517 } 518 519 static int mptspi_read_spi_device_pg0(struct scsi_target *starget, 520 struct _CONFIG_PAGE_SCSI_DEVICE_0 *pass_pg0) 521 { 522 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 523 struct _MPT_SCSI_HOST *hd = shost_priv(shost); 524 struct _MPT_ADAPTER *ioc = hd->ioc; 525 struct _CONFIG_PAGE_SCSI_DEVICE_0 *spi_dev_pg0; 526 dma_addr_t spi_dev_pg0_dma; 527 int size; 528 struct _x_config_parms cfg; 529 struct _CONFIG_PAGE_HEADER hdr; 530 int err = -EBUSY; 531 532 /* No SPI parameters for RAID devices */ 533 if (starget->channel == 0 && 534 mptspi_is_raid(hd, starget->id)) 535 return -1; 536 537 size = ioc->spi_data.sdp0length * 4; 538 /* 539 if (ioc->spi_data.sdp0length & 1) 540 size += size + 4; 541 size += 2048; 542 */ 543 544 spi_dev_pg0 = dma_alloc_coherent(&ioc->pcidev->dev, size, &spi_dev_pg0_dma, GFP_KERNEL); 545 if (spi_dev_pg0 == NULL) { 546 starget_printk(KERN_ERR, starget, MYIOC_s_FMT 547 "dma_alloc_coherent for parameters failed\n", ioc->name); 548 return -EINVAL; 549 } 550 551 memset(&hdr, 0, sizeof(hdr)); 552 553 hdr.PageVersion = ioc->spi_data.sdp0version; 554 hdr.PageLength = ioc->spi_data.sdp0length; 555 hdr.PageNumber = 0; 556 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE; 557 558 memset(&cfg, 0, sizeof(cfg)); 559 560 cfg.cfghdr.hdr = &hdr; 561 cfg.physAddr = spi_dev_pg0_dma; 562 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 563 cfg.dir = 0; 564 cfg.pageAddr = starget->id; 565 cfg.timeout = 60; 566 567 if (mpt_config(ioc, &cfg)) { 568 starget_printk(KERN_ERR, starget, MYIOC_s_FMT "mpt_config failed\n", ioc->name); 569 goto out_free; 570 } 571 err = 0; 572 memcpy(pass_pg0, spi_dev_pg0, size); 573 574 mptspi_print_read_nego(hd, starget, le32_to_cpu(spi_dev_pg0->NegotiatedParameters)); 575 576 out_free: 577 dma_free_coherent(&ioc->pcidev->dev, size, spi_dev_pg0, spi_dev_pg0_dma); 578 return err; 579 } 580 581 static u32 mptspi_getRP(struct scsi_target *starget) 582 { 583 u32 nego = 0; 584 585 nego |= spi_iu(starget) ? MPI_SCSIDEVPAGE1_RP_IU : 0; 586 nego |= spi_dt(starget) ? MPI_SCSIDEVPAGE1_RP_DT : 0; 587 nego |= spi_qas(starget) ? MPI_SCSIDEVPAGE1_RP_QAS : 0; 588 nego |= spi_hold_mcs(starget) ? MPI_SCSIDEVPAGE1_RP_HOLD_MCS : 0; 589 nego |= spi_wr_flow(starget) ? MPI_SCSIDEVPAGE1_RP_WR_FLOW : 0; 590 nego |= spi_rd_strm(starget) ? MPI_SCSIDEVPAGE1_RP_RD_STRM : 0; 591 nego |= spi_rti(starget) ? MPI_SCSIDEVPAGE1_RP_RTI : 0; 592 nego |= spi_pcomp_en(starget) ? MPI_SCSIDEVPAGE1_RP_PCOMP_EN : 0; 593 594 nego |= (spi_period(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD) & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK; 595 nego |= (spi_offset(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET) & MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK; 596 nego |= spi_width(starget) ? MPI_SCSIDEVPAGE1_RP_WIDE : 0; 597 598 return nego; 599 } 600 601 static void mptspi_read_parameters(struct scsi_target *starget) 602 { 603 int nego; 604 struct _CONFIG_PAGE_SCSI_DEVICE_0 spi_dev_pg0; 605 606 mptspi_read_spi_device_pg0(starget, &spi_dev_pg0); 607 608 nego = le32_to_cpu(spi_dev_pg0.NegotiatedParameters); 609 610 spi_iu(starget) = (nego & MPI_SCSIDEVPAGE0_NP_IU) ? 1 : 0; 611 spi_dt(starget) = (nego & MPI_SCSIDEVPAGE0_NP_DT) ? 1 : 0; 612 spi_qas(starget) = (nego & MPI_SCSIDEVPAGE0_NP_QAS) ? 1 : 0; 613 spi_wr_flow(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WR_FLOW) ? 1 : 0; 614 spi_rd_strm(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RD_STRM) ? 1 : 0; 615 spi_rti(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RTI) ? 1 : 0; 616 spi_pcomp_en(starget) = (nego & MPI_SCSIDEVPAGE0_NP_PCOMP_EN) ? 1 : 0; 617 spi_hold_mcs(starget) = (nego & MPI_SCSIDEVPAGE0_NP_HOLD_MCS) ? 1 : 0; 618 spi_period(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD; 619 spi_offset(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET; 620 spi_width(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WIDE) ? 1 : 0; 621 } 622 623 int 624 mptscsih_quiesce_raid(MPT_SCSI_HOST *hd, int quiesce, u8 channel, u8 id) 625 { 626 MPT_ADAPTER *ioc = hd->ioc; 627 MpiRaidActionRequest_t *pReq; 628 MPT_FRAME_HDR *mf; 629 int ret; 630 unsigned long timeleft; 631 632 mutex_lock(&ioc->internal_cmds.mutex); 633 634 /* Get and Populate a free Frame 635 */ 636 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) { 637 dfailprintk(hd->ioc, printk(MYIOC_s_WARN_FMT 638 "%s: no msg frames!\n", ioc->name, __func__)); 639 ret = -EAGAIN; 640 goto out; 641 } 642 pReq = (MpiRaidActionRequest_t *)mf; 643 if (quiesce) 644 pReq->Action = MPI_RAID_ACTION_QUIESCE_PHYS_IO; 645 else 646 pReq->Action = MPI_RAID_ACTION_ENABLE_PHYS_IO; 647 pReq->Reserved1 = 0; 648 pReq->ChainOffset = 0; 649 pReq->Function = MPI_FUNCTION_RAID_ACTION; 650 pReq->VolumeID = id; 651 pReq->VolumeBus = channel; 652 pReq->PhysDiskNum = 0; 653 pReq->MsgFlags = 0; 654 pReq->Reserved2 = 0; 655 pReq->ActionDataWord = 0; /* Reserved for this action */ 656 657 ioc->add_sge((char *)&pReq->ActionDataSGE, 658 MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1); 659 660 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "RAID Volume action=%x channel=%d id=%d\n", 661 ioc->name, pReq->Action, channel, id)); 662 663 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status) 664 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf); 665 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done, 10*HZ); 666 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) { 667 ret = -ETIME; 668 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: TIMED OUT!\n", 669 ioc->name, __func__)); 670 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) 671 goto out; 672 if (!timeleft) { 673 printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n", 674 ioc->name, __func__); 675 mpt_HardResetHandler(ioc, CAN_SLEEP); 676 mpt_free_msg_frame(ioc, mf); 677 } 678 goto out; 679 } 680 681 ret = ioc->internal_cmds.completion_code; 682 683 out: 684 CLEAR_MGMT_STATUS(ioc->internal_cmds.status) 685 mutex_unlock(&ioc->internal_cmds.mutex); 686 return ret; 687 } 688 689 static void mptspi_dv_device(struct _MPT_SCSI_HOST *hd, 690 struct scsi_device *sdev) 691 { 692 VirtTarget *vtarget = scsi_target(sdev)->hostdata; 693 MPT_ADAPTER *ioc = hd->ioc; 694 695 /* no DV on RAID devices */ 696 if (sdev->channel == 0 && 697 mptspi_is_raid(hd, sdev->id)) 698 return; 699 700 /* If this is a piece of a RAID, then quiesce first */ 701 if (sdev->channel == 1 && 702 mptscsih_quiesce_raid(hd, 1, vtarget->channel, vtarget->id) < 0) { 703 starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT 704 "Integrated RAID quiesce failed\n", ioc->name); 705 return; 706 } 707 708 hd->spi_pending |= (1 << sdev->id); 709 spi_dv_device(sdev); 710 hd->spi_pending &= ~(1 << sdev->id); 711 712 if (sdev->channel == 1 && 713 mptscsih_quiesce_raid(hd, 0, vtarget->channel, vtarget->id) < 0) 714 starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT 715 "Integrated RAID resume failed\n", ioc->name); 716 717 mptspi_read_parameters(sdev->sdev_target); 718 spi_display_xfer_agreement(sdev->sdev_target); 719 mptspi_read_parameters(sdev->sdev_target); 720 } 721 722 static int mptspi_slave_alloc(struct scsi_device *sdev) 723 { 724 MPT_SCSI_HOST *hd = shost_priv(sdev->host); 725 VirtTarget *vtarget; 726 VirtDevice *vdevice; 727 struct scsi_target *starget; 728 MPT_ADAPTER *ioc = hd->ioc; 729 730 if (sdev->channel == 1 && 731 mptscsih_is_phys_disk(ioc, 0, sdev->id) == 0) 732 return -ENXIO; 733 734 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL); 735 if (!vdevice) { 736 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", 737 ioc->name, sizeof(VirtDevice)); 738 return -ENOMEM; 739 } 740 741 vdevice->lun = sdev->lun; 742 sdev->hostdata = vdevice; 743 744 starget = scsi_target(sdev); 745 vtarget = starget->hostdata; 746 vdevice->vtarget = vtarget; 747 vtarget->num_luns++; 748 749 if (sdev->channel == 1) 750 sdev->no_uld_attach = 1; 751 752 return 0; 753 } 754 755 static int mptspi_slave_configure(struct scsi_device *sdev) 756 { 757 struct _MPT_SCSI_HOST *hd = shost_priv(sdev->host); 758 VirtTarget *vtarget = scsi_target(sdev)->hostdata; 759 int ret; 760 761 mptspi_initTarget(hd, vtarget, sdev); 762 763 ret = mptscsih_slave_configure(sdev); 764 765 if (ret) 766 return ret; 767 768 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d min_period=0x%02x" 769 " max_offset=0x%02x max_width=%d\n", hd->ioc->name, 770 sdev->id, spi_min_period(scsi_target(sdev)), 771 spi_max_offset(scsi_target(sdev)), 772 spi_max_width(scsi_target(sdev)))); 773 774 if ((sdev->channel == 1 || 775 !(mptspi_is_raid(hd, sdev->id))) && 776 !spi_initial_dv(sdev->sdev_target)) 777 mptspi_dv_device(hd, sdev); 778 779 return 0; 780 } 781 782 static int 783 mptspi_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) 784 { 785 struct _MPT_SCSI_HOST *hd = shost_priv(SCpnt->device->host); 786 VirtDevice *vdevice = SCpnt->device->hostdata; 787 MPT_ADAPTER *ioc = hd->ioc; 788 789 if (!vdevice || !vdevice->vtarget) { 790 SCpnt->result = DID_NO_CONNECT << 16; 791 done(SCpnt); 792 return 0; 793 } 794 795 if (SCpnt->device->channel == 1 && 796 mptscsih_is_phys_disk(ioc, 0, SCpnt->device->id) == 0) { 797 SCpnt->result = DID_NO_CONNECT << 16; 798 done(SCpnt); 799 return 0; 800 } 801 802 if (spi_dv_pending(scsi_target(SCpnt->device))) 803 ddvprintk(ioc, scsi_print_command(SCpnt)); 804 805 return mptscsih_qcmd(SCpnt,done); 806 } 807 808 static void mptspi_slave_destroy(struct scsi_device *sdev) 809 { 810 struct scsi_target *starget = scsi_target(sdev); 811 VirtTarget *vtarget = starget->hostdata; 812 VirtDevice *vdevice = sdev->hostdata; 813 814 /* Will this be the last lun on a non-raid device? */ 815 if (vtarget->num_luns == 1 && vdevice->configured_lun) { 816 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 817 818 /* Async Narrow */ 819 pg1.RequestedParameters = 0; 820 pg1.Reserved = 0; 821 pg1.Configuration = 0; 822 823 mptspi_write_spi_device_pg1(starget, &pg1); 824 } 825 826 mptscsih_slave_destroy(sdev); 827 } 828 829 static struct scsi_host_template mptspi_driver_template = { 830 .module = THIS_MODULE, 831 .proc_name = "mptspi", 832 .proc_info = mptscsih_proc_info, 833 .name = "MPT SPI Host", 834 .info = mptscsih_info, 835 .queuecommand = mptspi_qcmd, 836 .target_alloc = mptspi_target_alloc, 837 .slave_alloc = mptspi_slave_alloc, 838 .slave_configure = mptspi_slave_configure, 839 .target_destroy = mptspi_target_destroy, 840 .slave_destroy = mptspi_slave_destroy, 841 .change_queue_depth = mptscsih_change_queue_depth, 842 .eh_abort_handler = mptscsih_abort, 843 .eh_device_reset_handler = mptscsih_dev_reset, 844 .eh_bus_reset_handler = mptscsih_bus_reset, 845 .eh_host_reset_handler = mptscsih_host_reset, 846 .bios_param = mptscsih_bios_param, 847 .can_queue = MPT_SCSI_CAN_QUEUE, 848 .this_id = -1, 849 .sg_tablesize = MPT_SCSI_SG_DEPTH, 850 .max_sectors = 8192, 851 .cmd_per_lun = 7, 852 .use_clustering = ENABLE_CLUSTERING, 853 .shost_attrs = mptscsih_host_attrs, 854 }; 855 856 static int mptspi_write_spi_device_pg1(struct scsi_target *starget, 857 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pass_pg1) 858 { 859 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 860 struct _MPT_SCSI_HOST *hd = shost_priv(shost); 861 struct _MPT_ADAPTER *ioc = hd->ioc; 862 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pg1; 863 dma_addr_t pg1_dma; 864 int size; 865 struct _x_config_parms cfg; 866 struct _CONFIG_PAGE_HEADER hdr; 867 int err = -EBUSY; 868 869 /* don't allow updating nego parameters on RAID devices */ 870 if (starget->channel == 0 && 871 mptspi_is_raid(hd, starget->id)) 872 return -1; 873 874 size = ioc->spi_data.sdp1length * 4; 875 876 pg1 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg1_dma, GFP_KERNEL); 877 if (pg1 == NULL) { 878 starget_printk(KERN_ERR, starget, MYIOC_s_FMT 879 "dma_alloc_coherent for parameters failed\n", ioc->name); 880 return -EINVAL; 881 } 882 883 memset(&hdr, 0, sizeof(hdr)); 884 885 hdr.PageVersion = ioc->spi_data.sdp1version; 886 hdr.PageLength = ioc->spi_data.sdp1length; 887 hdr.PageNumber = 1; 888 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE; 889 890 memset(&cfg, 0, sizeof(cfg)); 891 892 cfg.cfghdr.hdr = &hdr; 893 cfg.physAddr = pg1_dma; 894 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 895 cfg.dir = 1; 896 cfg.pageAddr = starget->id; 897 898 memcpy(pg1, pass_pg1, size); 899 900 pg1->Header.PageVersion = hdr.PageVersion; 901 pg1->Header.PageLength = hdr.PageLength; 902 pg1->Header.PageNumber = hdr.PageNumber; 903 pg1->Header.PageType = hdr.PageType; 904 905 mptspi_print_write_nego(hd, starget, le32_to_cpu(pg1->RequestedParameters)); 906 907 if (mpt_config(ioc, &cfg)) { 908 starget_printk(KERN_ERR, starget, MYIOC_s_FMT 909 "mpt_config failed\n", ioc->name); 910 goto out_free; 911 } 912 err = 0; 913 914 out_free: 915 dma_free_coherent(&ioc->pcidev->dev, size, pg1, pg1_dma); 916 return err; 917 } 918 919 static void mptspi_write_offset(struct scsi_target *starget, int offset) 920 { 921 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 922 u32 nego; 923 924 if (offset < 0) 925 offset = 0; 926 927 if (offset > 255) 928 offset = 255; 929 930 if (spi_offset(starget) == -1) 931 mptspi_read_parameters(starget); 932 933 spi_offset(starget) = offset; 934 935 nego = mptspi_getRP(starget); 936 937 pg1.RequestedParameters = cpu_to_le32(nego); 938 pg1.Reserved = 0; 939 pg1.Configuration = 0; 940 941 mptspi_write_spi_device_pg1(starget, &pg1); 942 } 943 944 static void mptspi_write_period(struct scsi_target *starget, int period) 945 { 946 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 947 u32 nego; 948 949 if (period < 8) 950 period = 8; 951 952 if (period > 255) 953 period = 255; 954 955 if (spi_period(starget) == -1) 956 mptspi_read_parameters(starget); 957 958 if (period == 8) { 959 spi_iu(starget) = 1; 960 spi_dt(starget) = 1; 961 } else if (period == 9) { 962 spi_dt(starget) = 1; 963 } 964 965 spi_period(starget) = period; 966 967 nego = mptspi_getRP(starget); 968 969 pg1.RequestedParameters = cpu_to_le32(nego); 970 pg1.Reserved = 0; 971 pg1.Configuration = 0; 972 973 mptspi_write_spi_device_pg1(starget, &pg1); 974 } 975 976 static void mptspi_write_dt(struct scsi_target *starget, int dt) 977 { 978 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 979 u32 nego; 980 981 if (spi_period(starget) == -1) 982 mptspi_read_parameters(starget); 983 984 if (!dt && spi_period(starget) < 10) 985 spi_period(starget) = 10; 986 987 spi_dt(starget) = dt; 988 989 nego = mptspi_getRP(starget); 990 991 992 pg1.RequestedParameters = cpu_to_le32(nego); 993 pg1.Reserved = 0; 994 pg1.Configuration = 0; 995 996 mptspi_write_spi_device_pg1(starget, &pg1); 997 } 998 999 static void mptspi_write_iu(struct scsi_target *starget, int iu) 1000 { 1001 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 1002 u32 nego; 1003 1004 if (spi_period(starget) == -1) 1005 mptspi_read_parameters(starget); 1006 1007 if (!iu && spi_period(starget) < 9) 1008 spi_period(starget) = 9; 1009 1010 spi_iu(starget) = iu; 1011 1012 nego = mptspi_getRP(starget); 1013 1014 pg1.RequestedParameters = cpu_to_le32(nego); 1015 pg1.Reserved = 0; 1016 pg1.Configuration = 0; 1017 1018 mptspi_write_spi_device_pg1(starget, &pg1); 1019 } 1020 1021 #define MPTSPI_SIMPLE_TRANSPORT_PARM(parm) \ 1022 static void mptspi_write_##parm(struct scsi_target *starget, int parm)\ 1023 { \ 1024 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; \ 1025 u32 nego; \ 1026 \ 1027 spi_##parm(starget) = parm; \ 1028 \ 1029 nego = mptspi_getRP(starget); \ 1030 \ 1031 pg1.RequestedParameters = cpu_to_le32(nego); \ 1032 pg1.Reserved = 0; \ 1033 pg1.Configuration = 0; \ 1034 \ 1035 mptspi_write_spi_device_pg1(starget, &pg1); \ 1036 } 1037 1038 MPTSPI_SIMPLE_TRANSPORT_PARM(rd_strm) 1039 MPTSPI_SIMPLE_TRANSPORT_PARM(wr_flow) 1040 MPTSPI_SIMPLE_TRANSPORT_PARM(rti) 1041 MPTSPI_SIMPLE_TRANSPORT_PARM(hold_mcs) 1042 MPTSPI_SIMPLE_TRANSPORT_PARM(pcomp_en) 1043 1044 static void mptspi_write_qas(struct scsi_target *starget, int qas) 1045 { 1046 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 1047 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 1048 struct _MPT_SCSI_HOST *hd = shost_priv(shost); 1049 VirtTarget *vtarget = starget->hostdata; 1050 u32 nego; 1051 1052 if ((vtarget->negoFlags & MPT_TARGET_NO_NEGO_QAS) || 1053 hd->ioc->spi_data.noQas) 1054 spi_qas(starget) = 0; 1055 else 1056 spi_qas(starget) = qas; 1057 1058 nego = mptspi_getRP(starget); 1059 1060 pg1.RequestedParameters = cpu_to_le32(nego); 1061 pg1.Reserved = 0; 1062 pg1.Configuration = 0; 1063 1064 mptspi_write_spi_device_pg1(starget, &pg1); 1065 } 1066 1067 static void mptspi_write_width(struct scsi_target *starget, int width) 1068 { 1069 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 1070 u32 nego; 1071 1072 if (!width) { 1073 spi_dt(starget) = 0; 1074 if (spi_period(starget) < 10) 1075 spi_period(starget) = 10; 1076 } 1077 1078 spi_width(starget) = width; 1079 1080 nego = mptspi_getRP(starget); 1081 1082 pg1.RequestedParameters = cpu_to_le32(nego); 1083 pg1.Reserved = 0; 1084 pg1.Configuration = 0; 1085 1086 mptspi_write_spi_device_pg1(starget, &pg1); 1087 } 1088 1089 struct work_queue_wrapper { 1090 struct work_struct work; 1091 struct _MPT_SCSI_HOST *hd; 1092 int disk; 1093 }; 1094 1095 static void mpt_work_wrapper(struct work_struct *work) 1096 { 1097 struct work_queue_wrapper *wqw = 1098 container_of(work, struct work_queue_wrapper, work); 1099 struct _MPT_SCSI_HOST *hd = wqw->hd; 1100 MPT_ADAPTER *ioc = hd->ioc; 1101 struct Scsi_Host *shost = ioc->sh; 1102 struct scsi_device *sdev; 1103 int disk = wqw->disk; 1104 struct _CONFIG_PAGE_IOC_3 *pg3; 1105 1106 kfree(wqw); 1107 1108 mpt_findImVolumes(ioc); 1109 pg3 = ioc->raid_data.pIocPg3; 1110 if (!pg3) 1111 return; 1112 1113 shost_for_each_device(sdev,shost) { 1114 struct scsi_target *starget = scsi_target(sdev); 1115 VirtTarget *vtarget = starget->hostdata; 1116 1117 /* only want to search RAID components */ 1118 if (sdev->channel != 1) 1119 continue; 1120 1121 /* The id is the raid PhysDiskNum, even if 1122 * starget->id is the actual target address */ 1123 if(vtarget->id != disk) 1124 continue; 1125 1126 starget_printk(KERN_INFO, vtarget->starget, MYIOC_s_FMT 1127 "Integrated RAID requests DV of new device\n", ioc->name); 1128 mptspi_dv_device(hd, sdev); 1129 } 1130 shost_printk(KERN_INFO, shost, MYIOC_s_FMT 1131 "Integrated RAID detects new device %d\n", ioc->name, disk); 1132 scsi_scan_target(&ioc->sh->shost_gendev, 1, disk, 0, 1); 1133 } 1134 1135 1136 static void mpt_dv_raid(struct _MPT_SCSI_HOST *hd, int disk) 1137 { 1138 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC); 1139 MPT_ADAPTER *ioc = hd->ioc; 1140 1141 if (!wqw) { 1142 shost_printk(KERN_ERR, ioc->sh, MYIOC_s_FMT 1143 "Failed to act on RAID event for physical disk %d\n", 1144 ioc->name, disk); 1145 return; 1146 } 1147 INIT_WORK(&wqw->work, mpt_work_wrapper); 1148 wqw->hd = hd; 1149 wqw->disk = disk; 1150 1151 schedule_work(&wqw->work); 1152 } 1153 1154 static int 1155 mptspi_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 1156 { 1157 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 1158 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh); 1159 1160 if (ioc->bus_type != SPI) 1161 return 0; 1162 1163 if (hd && event == MPI_EVENT_INTEGRATED_RAID) { 1164 int reason 1165 = (le32_to_cpu(pEvReply->Data[0]) & 0x00FF0000) >> 16; 1166 1167 if (reason == MPI_EVENT_RAID_RC_DOMAIN_VAL_NEEDED) { 1168 int disk = (le32_to_cpu(pEvReply->Data[0]) & 0xFF000000) >> 24; 1169 mpt_dv_raid(hd, disk); 1170 } 1171 } 1172 return mptscsih_event_process(ioc, pEvReply); 1173 } 1174 1175 static int 1176 mptspi_deny_binding(struct scsi_target *starget) 1177 { 1178 struct _MPT_SCSI_HOST *hd = 1179 (struct _MPT_SCSI_HOST *)dev_to_shost(starget->dev.parent)->hostdata; 1180 return ((mptspi_is_raid(hd, starget->id)) && 1181 starget->channel == 0) ? 1 : 0; 1182 } 1183 1184 static struct spi_function_template mptspi_transport_functions = { 1185 .get_offset = mptspi_read_parameters, 1186 .set_offset = mptspi_write_offset, 1187 .show_offset = 1, 1188 .get_period = mptspi_read_parameters, 1189 .set_period = mptspi_write_period, 1190 .show_period = 1, 1191 .get_width = mptspi_read_parameters, 1192 .set_width = mptspi_write_width, 1193 .show_width = 1, 1194 .get_iu = mptspi_read_parameters, 1195 .set_iu = mptspi_write_iu, 1196 .show_iu = 1, 1197 .get_dt = mptspi_read_parameters, 1198 .set_dt = mptspi_write_dt, 1199 .show_dt = 1, 1200 .get_qas = mptspi_read_parameters, 1201 .set_qas = mptspi_write_qas, 1202 .show_qas = 1, 1203 .get_wr_flow = mptspi_read_parameters, 1204 .set_wr_flow = mptspi_write_wr_flow, 1205 .show_wr_flow = 1, 1206 .get_rd_strm = mptspi_read_parameters, 1207 .set_rd_strm = mptspi_write_rd_strm, 1208 .show_rd_strm = 1, 1209 .get_rti = mptspi_read_parameters, 1210 .set_rti = mptspi_write_rti, 1211 .show_rti = 1, 1212 .get_pcomp_en = mptspi_read_parameters, 1213 .set_pcomp_en = mptspi_write_pcomp_en, 1214 .show_pcomp_en = 1, 1215 .get_hold_mcs = mptspi_read_parameters, 1216 .set_hold_mcs = mptspi_write_hold_mcs, 1217 .show_hold_mcs = 1, 1218 .deny_binding = mptspi_deny_binding, 1219 }; 1220 1221 /**************************************************************************** 1222 * Supported hardware 1223 */ 1224 1225 static struct pci_device_id mptspi_pci_table[] = { 1226 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030, 1227 PCI_ANY_ID, PCI_ANY_ID }, 1228 { PCI_VENDOR_ID_ATTO, MPI_MANUFACTPAGE_DEVID_53C1030, 1229 PCI_ANY_ID, PCI_ANY_ID }, 1230 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1035, 1231 PCI_ANY_ID, PCI_ANY_ID }, 1232 {0} /* Terminating entry */ 1233 }; 1234 MODULE_DEVICE_TABLE(pci, mptspi_pci_table); 1235 1236 1237 /* 1238 * renegotiate for a given target 1239 */ 1240 static void 1241 mptspi_dv_renegotiate_work(struct work_struct *work) 1242 { 1243 struct work_queue_wrapper *wqw = 1244 container_of(work, struct work_queue_wrapper, work); 1245 struct _MPT_SCSI_HOST *hd = wqw->hd; 1246 struct scsi_device *sdev; 1247 struct scsi_target *starget; 1248 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 1249 u32 nego; 1250 MPT_ADAPTER *ioc = hd->ioc; 1251 1252 kfree(wqw); 1253 1254 if (hd->spi_pending) { 1255 shost_for_each_device(sdev, ioc->sh) { 1256 if (hd->spi_pending & (1 << sdev->id)) 1257 continue; 1258 starget = scsi_target(sdev); 1259 nego = mptspi_getRP(starget); 1260 pg1.RequestedParameters = cpu_to_le32(nego); 1261 pg1.Reserved = 0; 1262 pg1.Configuration = 0; 1263 mptspi_write_spi_device_pg1(starget, &pg1); 1264 } 1265 } else { 1266 shost_for_each_device(sdev, ioc->sh) 1267 mptspi_dv_device(hd, sdev); 1268 } 1269 } 1270 1271 static void 1272 mptspi_dv_renegotiate(struct _MPT_SCSI_HOST *hd) 1273 { 1274 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC); 1275 1276 if (!wqw) 1277 return; 1278 1279 INIT_WORK(&wqw->work, mptspi_dv_renegotiate_work); 1280 wqw->hd = hd; 1281 1282 schedule_work(&wqw->work); 1283 } 1284 1285 /* 1286 * spi module reset handler 1287 */ 1288 static int 1289 mptspi_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 1290 { 1291 int rc; 1292 1293 rc = mptscsih_ioc_reset(ioc, reset_phase); 1294 if ((ioc->bus_type != SPI) || (!rc)) 1295 return rc; 1296 1297 /* only try to do a renegotiation if we're properly set up 1298 * if we get an ioc fault on bringup, ioc->sh will be NULL */ 1299 if (reset_phase == MPT_IOC_POST_RESET && 1300 ioc->sh) { 1301 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh); 1302 1303 mptspi_dv_renegotiate(hd); 1304 } 1305 1306 return rc; 1307 } 1308 1309 #ifdef CONFIG_PM 1310 /* 1311 * spi module resume handler 1312 */ 1313 static int 1314 mptspi_resume(struct pci_dev *pdev) 1315 { 1316 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1317 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh); 1318 int rc; 1319 1320 rc = mptscsih_resume(pdev); 1321 mptspi_dv_renegotiate(hd); 1322 1323 return rc; 1324 } 1325 #endif 1326 1327 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1328 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1329 /* 1330 * mptspi_probe - Installs scsi devices per bus. 1331 * @pdev: Pointer to pci_dev structure 1332 * 1333 * Returns 0 for success, non-zero for failure. 1334 * 1335 */ 1336 static int 1337 mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1338 { 1339 struct Scsi_Host *sh; 1340 MPT_SCSI_HOST *hd; 1341 MPT_ADAPTER *ioc; 1342 unsigned long flags; 1343 int ii; 1344 int numSGE = 0; 1345 int scale; 1346 int ioc_cap; 1347 int error=0; 1348 int r; 1349 1350 if ((r = mpt_attach(pdev,id)) != 0) 1351 return r; 1352 1353 ioc = pci_get_drvdata(pdev); 1354 ioc->DoneCtx = mptspiDoneCtx; 1355 ioc->TaskCtx = mptspiTaskCtx; 1356 ioc->InternalCtx = mptspiInternalCtx; 1357 1358 /* Added sanity check on readiness of the MPT adapter. 1359 */ 1360 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 1361 printk(MYIOC_s_WARN_FMT 1362 "Skipping because it's not operational!\n", 1363 ioc->name); 1364 error = -ENODEV; 1365 goto out_mptspi_probe; 1366 } 1367 1368 if (!ioc->active) { 1369 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 1370 ioc->name); 1371 error = -ENODEV; 1372 goto out_mptspi_probe; 1373 } 1374 1375 /* Sanity check - ensure at least 1 port is INITIATOR capable 1376 */ 1377 ioc_cap = 0; 1378 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1379 if (ioc->pfacts[ii].ProtocolFlags & 1380 MPI_PORTFACTS_PROTOCOL_INITIATOR) 1381 ioc_cap ++; 1382 } 1383 1384 if (!ioc_cap) { 1385 printk(MYIOC_s_WARN_FMT 1386 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", 1387 ioc->name, ioc); 1388 return 0; 1389 } 1390 1391 sh = scsi_host_alloc(&mptspi_driver_template, sizeof(MPT_SCSI_HOST)); 1392 1393 if (!sh) { 1394 printk(MYIOC_s_WARN_FMT 1395 "Unable to register controller with SCSI subsystem\n", 1396 ioc->name); 1397 error = -1; 1398 goto out_mptspi_probe; 1399 } 1400 1401 spin_lock_irqsave(&ioc->FreeQlock, flags); 1402 1403 /* Attach the SCSI Host to the IOC structure 1404 */ 1405 ioc->sh = sh; 1406 1407 sh->io_port = 0; 1408 sh->n_io_port = 0; 1409 sh->irq = 0; 1410 1411 /* set 16 byte cdb's */ 1412 sh->max_cmd_len = 16; 1413 1414 /* Yikes! This is important! 1415 * Otherwise, by default, linux 1416 * only scans target IDs 0-7! 1417 * pfactsN->MaxDevices unreliable 1418 * (not supported in early 1419 * versions of the FW). 1420 * max_id = 1 + actual max id, 1421 * max_lun = 1 + actual last lun, 1422 * see hosts.h :o( 1423 */ 1424 sh->max_id = ioc->devices_per_bus; 1425 1426 sh->max_lun = MPT_LAST_LUN + 1; 1427 /* 1428 * If RAID Firmware Detected, setup virtual channel 1429 */ 1430 if (ioc->ir_firmware) 1431 sh->max_channel = 1; 1432 else 1433 sh->max_channel = 0; 1434 sh->this_id = ioc->pfacts[0].PortSCSIID; 1435 1436 /* Required entry. 1437 */ 1438 sh->unique_id = ioc->id; 1439 1440 /* Verify that we won't exceed the maximum 1441 * number of chain buffers 1442 * We can optimize: ZZ = req_sz/sizeof(SGE) 1443 * For 32bit SGE's: 1444 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 1445 * + (req_sz - 64)/sizeof(SGE) 1446 * A slightly different algorithm is required for 1447 * 64bit SGEs. 1448 */ 1449 scale = ioc->req_sz/ioc->SGE_size; 1450 if (ioc->sg_addr_size == sizeof(u64)) { 1451 numSGE = (scale - 1) * 1452 (ioc->facts.MaxChainDepth-1) + scale + 1453 (ioc->req_sz - 60) / ioc->SGE_size; 1454 } else { 1455 numSGE = 1 + (scale - 1) * 1456 (ioc->facts.MaxChainDepth-1) + scale + 1457 (ioc->req_sz - 64) / ioc->SGE_size; 1458 } 1459 1460 if (numSGE < sh->sg_tablesize) { 1461 /* Reset this value */ 1462 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1463 "Resetting sg_tablesize to %d from %d\n", 1464 ioc->name, numSGE, sh->sg_tablesize)); 1465 sh->sg_tablesize = numSGE; 1466 } 1467 1468 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1469 1470 hd = shost_priv(sh); 1471 hd->ioc = ioc; 1472 1473 /* SCSI needs scsi_cmnd lookup table! 1474 * (with size equal to req_depth*PtrSz!) 1475 */ 1476 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); 1477 if (!ioc->ScsiLookup) { 1478 error = -ENOMEM; 1479 goto out_mptspi_probe; 1480 } 1481 spin_lock_init(&ioc->scsi_lookup_lock); 1482 1483 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n", 1484 ioc->name, ioc->ScsiLookup)); 1485 1486 ioc->spi_data.Saf_Te = mpt_saf_te; 1487 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1488 "saf_te %x\n", 1489 ioc->name, 1490 mpt_saf_te)); 1491 ioc->spi_data.noQas = 0; 1492 1493 hd->last_queue_full = 0; 1494 hd->spi_pending = 0; 1495 1496 /* Some versions of the firmware don't support page 0; without 1497 * that we can't get the parameters */ 1498 if (ioc->spi_data.sdp0length != 0) 1499 sh->transportt = mptspi_transport_template; 1500 1501 error = scsi_add_host (sh, &ioc->pcidev->dev); 1502 if(error) { 1503 dprintk(ioc, printk(MYIOC_s_ERR_FMT 1504 "scsi_add_host failed\n", ioc->name)); 1505 goto out_mptspi_probe; 1506 } 1507 1508 /* 1509 * issue internal bus reset 1510 */ 1511 if (ioc->spi_data.bus_reset) 1512 mptscsih_IssueTaskMgmt(hd, 1513 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS, 1514 0, 0, 0, 0, 5); 1515 1516 scsi_scan_host(sh); 1517 return 0; 1518 1519 out_mptspi_probe: 1520 1521 mptscsih_remove(pdev); 1522 return error; 1523 } 1524 1525 static struct pci_driver mptspi_driver = { 1526 .name = "mptspi", 1527 .id_table = mptspi_pci_table, 1528 .probe = mptspi_probe, 1529 .remove = __devexit_p(mptscsih_remove), 1530 .shutdown = mptscsih_shutdown, 1531 #ifdef CONFIG_PM 1532 .suspend = mptscsih_suspend, 1533 .resume = mptspi_resume, 1534 #endif 1535 }; 1536 1537 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1538 /** 1539 * mptspi_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer. 1540 * 1541 * Returns 0 for success, non-zero for failure. 1542 */ 1543 static int __init 1544 mptspi_init(void) 1545 { 1546 int error; 1547 1548 show_mptmod_ver(my_NAME, my_VERSION); 1549 1550 mptspi_transport_template = spi_attach_transport(&mptspi_transport_functions); 1551 if (!mptspi_transport_template) 1552 return -ENODEV; 1553 1554 mptspiDoneCtx = mpt_register(mptscsih_io_done, MPTSPI_DRIVER, 1555 "mptscsih_io_done"); 1556 mptspiTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTSPI_DRIVER, 1557 "mptscsih_taskmgmt_complete"); 1558 mptspiInternalCtx = mpt_register(mptscsih_scandv_complete, 1559 MPTSPI_DRIVER, "mptscsih_scandv_complete"); 1560 1561 mpt_event_register(mptspiDoneCtx, mptspi_event_process); 1562 mpt_reset_register(mptspiDoneCtx, mptspi_ioc_reset); 1563 1564 error = pci_register_driver(&mptspi_driver); 1565 if (error) 1566 spi_release_transport(mptspi_transport_template); 1567 1568 return error; 1569 } 1570 1571 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1572 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1573 /** 1574 * mptspi_exit - Unregisters MPT adapter(s) 1575 */ 1576 static void __exit 1577 mptspi_exit(void) 1578 { 1579 pci_unregister_driver(&mptspi_driver); 1580 1581 mpt_reset_deregister(mptspiDoneCtx); 1582 mpt_event_deregister(mptspiDoneCtx); 1583 1584 mpt_deregister(mptspiInternalCtx); 1585 mpt_deregister(mptspiTaskCtx); 1586 mpt_deregister(mptspiDoneCtx); 1587 spi_release_transport(mptspi_transport_template); 1588 } 1589 1590 module_init(mptspi_init); 1591 module_exit(mptspi_exit); 1592