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/init.h> 50 #include <linux/errno.h> 51 #include <linux/kdev_t.h> 52 #include <linux/blkdev.h> 53 #include <linux/delay.h> /* for mdelay */ 54 #include <linux/interrupt.h> /* needed for in_interrupt() proto */ 55 #include <linux/reboot.h> /* notifier code */ 56 #include <linux/workqueue.h> 57 #include <linux/raid_class.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_transport.h> 65 #include <scsi/scsi_transport_spi.h> 66 #include <scsi/scsi_dbg.h> 67 68 #include "mptbase.h" 69 #include "mptscsih.h" 70 71 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 72 #define my_NAME "Fusion MPT SPI Host driver" 73 #define my_VERSION MPT_LINUX_VERSION_COMMON 74 #define MYNAM "mptspi" 75 76 MODULE_AUTHOR(MODULEAUTHOR); 77 MODULE_DESCRIPTION(my_NAME); 78 MODULE_LICENSE("GPL"); 79 MODULE_VERSION(my_VERSION); 80 81 /* Command line args */ 82 static int mpt_saf_te = MPTSCSIH_SAF_TE; 83 module_param(mpt_saf_te, int, 0); 84 MODULE_PARM_DESC(mpt_saf_te, " Force enabling SEP Processor: enable=1 (default=MPTSCSIH_SAF_TE=0)"); 85 86 static void mptspi_write_offset(struct scsi_target *, int); 87 static void mptspi_write_width(struct scsi_target *, int); 88 static int mptspi_write_spi_device_pg1(struct scsi_target *, 89 struct _CONFIG_PAGE_SCSI_DEVICE_1 *); 90 91 static struct scsi_transport_template *mptspi_transport_template = NULL; 92 93 static u8 mptspiDoneCtx = MPT_MAX_PROTOCOL_DRIVERS; 94 static u8 mptspiTaskCtx = MPT_MAX_PROTOCOL_DRIVERS; 95 static u8 mptspiInternalCtx = MPT_MAX_PROTOCOL_DRIVERS; /* Used only for internal commands */ 96 97 /** 98 * mptspi_setTargetNegoParms - Update the target negotiation parameters 99 * @hd: Pointer to a SCSI Host Structure 100 * @target: per target private data 101 * @sdev: SCSI device 102 * 103 * Update the target negotiation parameters based on the the Inquiry 104 * data, adapter capabilities, and NVRAM settings. 105 **/ 106 static void 107 mptspi_setTargetNegoParms(MPT_SCSI_HOST *hd, VirtTarget *target, 108 struct scsi_device *sdev) 109 { 110 MPT_ADAPTER *ioc = hd->ioc; 111 SpiCfgData *pspi_data = &ioc->spi_data; 112 int id = (int) target->id; 113 int nvram; 114 u8 width = MPT_NARROW; 115 u8 factor = MPT_ASYNC; 116 u8 offset = 0; 117 u8 nfactor; 118 u8 noQas = 1; 119 120 target->negoFlags = pspi_data->noQas; 121 122 if (sdev->scsi_level < SCSI_2) { 123 width = 0; 124 factor = MPT_ULTRA2; 125 offset = pspi_data->maxSyncOffset; 126 target->tflags &= ~MPT_TARGET_FLAGS_Q_YES; 127 } else { 128 if (scsi_device_wide(sdev)) 129 width = 1; 130 131 if (scsi_device_sync(sdev)) { 132 factor = pspi_data->minSyncFactor; 133 if (!scsi_device_dt(sdev)) 134 factor = MPT_ULTRA2; 135 else { 136 if (!scsi_device_ius(sdev) && 137 !scsi_device_qas(sdev)) 138 factor = MPT_ULTRA160; 139 else { 140 factor = MPT_ULTRA320; 141 if (scsi_device_qas(sdev)) { 142 ddvprintk(ioc, 143 printk(MYIOC_s_DEBUG_FMT "Enabling QAS due to " 144 "byte56=%02x on id=%d!\n", ioc->name, 145 scsi_device_qas(sdev), id)); 146 noQas = 0; 147 } 148 if (sdev->type == TYPE_TAPE && 149 scsi_device_ius(sdev)) 150 target->negoFlags |= MPT_TAPE_NEGO_IDP; 151 } 152 } 153 offset = pspi_data->maxSyncOffset; 154 155 /* If RAID, never disable QAS 156 * else if non RAID, do not disable 157 * QAS if bit 1 is set 158 * bit 1 QAS support, non-raid only 159 * bit 0 IU support 160 */ 161 if (target->raidVolume == 1) 162 noQas = 0; 163 } else { 164 factor = MPT_ASYNC; 165 offset = 0; 166 } 167 } 168 169 if (!sdev->tagged_supported) 170 target->tflags &= ~MPT_TARGET_FLAGS_Q_YES; 171 172 /* Update tflags based on NVRAM settings. (SCSI only) 173 */ 174 if (pspi_data->nvram && (pspi_data->nvram[id] != MPT_HOST_NVRAM_INVALID)) { 175 nvram = pspi_data->nvram[id]; 176 nfactor = (nvram & MPT_NVRAM_SYNC_MASK) >> 8; 177 178 if (width) 179 width = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1; 180 181 if (offset > 0) { 182 /* Ensure factor is set to the 183 * maximum of: adapter, nvram, inquiry 184 */ 185 if (nfactor) { 186 if (nfactor < pspi_data->minSyncFactor ) 187 nfactor = pspi_data->minSyncFactor; 188 189 factor = max(factor, nfactor); 190 if (factor == MPT_ASYNC) 191 offset = 0; 192 } else { 193 offset = 0; 194 factor = MPT_ASYNC; 195 } 196 } else { 197 factor = MPT_ASYNC; 198 } 199 } 200 201 /* Make sure data is consistent 202 */ 203 if ((!width) && (factor < MPT_ULTRA2)) 204 factor = MPT_ULTRA2; 205 206 /* Save the data to the target structure. 207 */ 208 target->minSyncFactor = factor; 209 target->maxOffset = offset; 210 target->maxWidth = width; 211 212 target->tflags |= MPT_TARGET_FLAGS_VALID_NEGO; 213 214 /* Disable unused features. 215 */ 216 if (!width) 217 target->negoFlags |= MPT_TARGET_NO_NEGO_WIDE; 218 219 if (!offset) 220 target->negoFlags |= MPT_TARGET_NO_NEGO_SYNC; 221 222 if ( factor > MPT_ULTRA320 ) 223 noQas = 0; 224 225 if (noQas && (pspi_data->noQas == 0)) { 226 pspi_data->noQas |= MPT_TARGET_NO_NEGO_QAS; 227 target->negoFlags |= MPT_TARGET_NO_NEGO_QAS; 228 229 /* Disable QAS in a mixed configuration case 230 */ 231 232 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT 233 "Disabling QAS due to noQas=%02x on id=%d!\n", ioc->name, noQas, id)); 234 } 235 } 236 237 /** 238 * mptspi_writeIOCPage4 - write IOC Page 4 239 * @hd: Pointer to a SCSI Host Structure 240 * @channel: channel number 241 * @id: write IOC Page4 for this ID & Bus 242 * 243 * Return: -EAGAIN if unable to obtain a Message Frame 244 * or 0 if success. 245 * 246 * Remark: We do not wait for a return, write pages sequentially. 247 **/ 248 static int 249 mptspi_writeIOCPage4(MPT_SCSI_HOST *hd, u8 channel , u8 id) 250 { 251 MPT_ADAPTER *ioc = hd->ioc; 252 Config_t *pReq; 253 IOCPage4_t *IOCPage4Ptr; 254 MPT_FRAME_HDR *mf; 255 dma_addr_t dataDma; 256 u16 req_idx; 257 u32 frameOffset; 258 u32 flagsLength; 259 int ii; 260 261 /* Get a MF for this command. 262 */ 263 if ((mf = mpt_get_msg_frame(ioc->DoneCtx, ioc)) == NULL) { 264 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT 265 "writeIOCPage4 : no msg frames!\n",ioc->name)); 266 return -EAGAIN; 267 } 268 269 /* Set the request and the data pointers. 270 * Place data at end of MF. 271 */ 272 pReq = (Config_t *)mf; 273 274 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); 275 frameOffset = ioc->req_sz - sizeof(IOCPage4_t); 276 277 /* Complete the request frame (same for all requests). 278 */ 279 pReq->Action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 280 pReq->Reserved = 0; 281 pReq->ChainOffset = 0; 282 pReq->Function = MPI_FUNCTION_CONFIG; 283 pReq->ExtPageLength = 0; 284 pReq->ExtPageType = 0; 285 pReq->MsgFlags = 0; 286 for (ii=0; ii < 8; ii++) { 287 pReq->Reserved2[ii] = 0; 288 } 289 290 IOCPage4Ptr = ioc->spi_data.pIocPg4; 291 dataDma = ioc->spi_data.IocPg4_dma; 292 ii = IOCPage4Ptr->ActiveSEP++; 293 IOCPage4Ptr->SEP[ii].SEPTargetID = id; 294 IOCPage4Ptr->SEP[ii].SEPBus = channel; 295 pReq->Header = IOCPage4Ptr->Header; 296 pReq->PageAddress = cpu_to_le32(id | (channel << 8 )); 297 298 /* Add a SGE to the config request. 299 */ 300 flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE | 301 (IOCPage4Ptr->Header.PageLength + ii) * 4; 302 303 ioc->add_sge((char *)&pReq->PageBufferSGE, flagsLength, dataDma); 304 305 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT 306 "writeIOCPage4: MaxSEP=%d ActiveSEP=%d id=%d bus=%d\n", 307 ioc->name, IOCPage4Ptr->MaxSEP, IOCPage4Ptr->ActiveSEP, id, channel)); 308 309 mpt_put_msg_frame(ioc->DoneCtx, ioc, mf); 310 311 return 0; 312 } 313 314 /** 315 * mptspi_initTarget - Target, LUN alloc/free functionality. 316 * @hd: Pointer to MPT_SCSI_HOST structure 317 * @vtarget: per target private data 318 * @sdev: SCSI device 319 * 320 * NOTE: It's only SAFE to call this routine if data points to 321 * sane & valid STANDARD INQUIRY data! 322 * 323 * Allocate and initialize memory for this target. 324 * Save inquiry data. 325 * 326 **/ 327 static void 328 mptspi_initTarget(MPT_SCSI_HOST *hd, VirtTarget *vtarget, 329 struct scsi_device *sdev) 330 { 331 332 /* Is LUN supported? If so, upper 2 bits will be 0 333 * in first byte of inquiry data. 334 */ 335 if (sdev->inq_periph_qual != 0) 336 return; 337 338 if (vtarget == NULL) 339 return; 340 341 vtarget->type = sdev->type; 342 343 if ((sdev->type == TYPE_PROCESSOR) && (hd->ioc->spi_data.Saf_Te)) { 344 /* Treat all Processors as SAF-TE if 345 * command line option is set */ 346 vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED; 347 mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id); 348 }else if ((sdev->type == TYPE_PROCESSOR) && 349 !(vtarget->tflags & MPT_TARGET_FLAGS_SAF_TE_ISSUED )) { 350 if (sdev->inquiry_len > 49 ) { 351 if (sdev->inquiry[44] == 'S' && 352 sdev->inquiry[45] == 'A' && 353 sdev->inquiry[46] == 'F' && 354 sdev->inquiry[47] == '-' && 355 sdev->inquiry[48] == 'T' && 356 sdev->inquiry[49] == 'E' ) { 357 vtarget->tflags |= MPT_TARGET_FLAGS_SAF_TE_ISSUED; 358 mptspi_writeIOCPage4(hd, vtarget->channel, vtarget->id); 359 } 360 } 361 } 362 mptspi_setTargetNegoParms(hd, vtarget, sdev); 363 } 364 365 /** 366 * mptspi_is_raid - Determines whether target is belonging to volume 367 * @hd: Pointer to a SCSI HOST structure 368 * @id: target device id 369 * 370 * Return: 371 * non-zero = true 372 * zero = false 373 * 374 */ 375 static int 376 mptspi_is_raid(struct _MPT_SCSI_HOST *hd, u32 id) 377 { 378 int i, rc = 0; 379 MPT_ADAPTER *ioc = hd->ioc; 380 381 if (!ioc->raid_data.pIocPg2) 382 goto out; 383 384 if (!ioc->raid_data.pIocPg2->NumActiveVolumes) 385 goto out; 386 for (i=0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) { 387 if (ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID == id) { 388 rc = 1; 389 goto out; 390 } 391 } 392 393 out: 394 return rc; 395 } 396 397 static int mptspi_target_alloc(struct scsi_target *starget) 398 { 399 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 400 struct _MPT_SCSI_HOST *hd = shost_priv(shost); 401 VirtTarget *vtarget; 402 MPT_ADAPTER *ioc; 403 404 if (hd == NULL) 405 return -ENODEV; 406 407 ioc = hd->ioc; 408 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); 409 if (!vtarget) 410 return -ENOMEM; 411 412 vtarget->ioc_id = ioc->id; 413 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES; 414 vtarget->id = (u8)starget->id; 415 vtarget->channel = (u8)starget->channel; 416 vtarget->starget = starget; 417 starget->hostdata = vtarget; 418 419 if (starget->channel == 1) { 420 if (mptscsih_is_phys_disk(ioc, 0, starget->id) == 0) 421 return 0; 422 vtarget->tflags |= MPT_TARGET_FLAGS_RAID_COMPONENT; 423 /* The real channel for this device is zero */ 424 vtarget->channel = 0; 425 /* The actual physdisknum (for RAID passthrough) */ 426 vtarget->id = mptscsih_raid_id_to_num(ioc, 0, 427 starget->id); 428 } 429 430 if (starget->channel == 0 && 431 mptspi_is_raid(hd, starget->id)) { 432 vtarget->raidVolume = 1; 433 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT 434 "RAID Volume @ channel=%d id=%d\n", ioc->name, starget->channel, 435 starget->id)); 436 } 437 438 if (ioc->spi_data.nvram && 439 ioc->spi_data.nvram[starget->id] != MPT_HOST_NVRAM_INVALID) { 440 u32 nvram = ioc->spi_data.nvram[starget->id]; 441 spi_min_period(starget) = (nvram & MPT_NVRAM_SYNC_MASK) >> MPT_NVRAM_SYNC_SHIFT; 442 spi_max_width(starget) = nvram & MPT_NVRAM_WIDE_DISABLE ? 0 : 1; 443 } else { 444 spi_min_period(starget) = ioc->spi_data.minSyncFactor; 445 spi_max_width(starget) = ioc->spi_data.maxBusWidth; 446 } 447 spi_max_offset(starget) = ioc->spi_data.maxSyncOffset; 448 449 spi_offset(starget) = 0; 450 spi_period(starget) = 0xFF; 451 mptspi_write_width(starget, 0); 452 453 return 0; 454 } 455 456 static void 457 mptspi_target_destroy(struct scsi_target *starget) 458 { 459 if (starget->hostdata) 460 kfree(starget->hostdata); 461 starget->hostdata = NULL; 462 } 463 464 /** 465 * mptspi_print_write_nego - negotiation parameters debug info that is being sent 466 * @hd: Pointer to a SCSI HOST structure 467 * @starget: SCSI target 468 * @ii: negotiation parameters 469 * 470 */ 471 static void 472 mptspi_print_write_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii) 473 { 474 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Requested = 0x%08x" 475 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n", 476 hd->ioc->name, starget->id, ii, 477 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "", 478 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF), 479 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "", 480 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "", 481 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "", 482 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "", 483 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "", 484 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "", 485 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "", 486 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": "")); 487 } 488 489 /** 490 * mptspi_print_read_nego - negotiation parameters debug info that is being read 491 * @hd: Pointer to a SCSI HOST structure 492 * @starget: SCSI target 493 * @ii: negotiation parameters 494 * 495 */ 496 static void 497 mptspi_print_read_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii) 498 { 499 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Read = 0x%08x" 500 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n", 501 hd->ioc->name, starget->id, ii, 502 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "", 503 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF), 504 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "", 505 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "", 506 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "", 507 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "", 508 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "", 509 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "", 510 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "", 511 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": "")); 512 } 513 514 static int mptspi_read_spi_device_pg0(struct scsi_target *starget, 515 struct _CONFIG_PAGE_SCSI_DEVICE_0 *pass_pg0) 516 { 517 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 518 struct _MPT_SCSI_HOST *hd = shost_priv(shost); 519 struct _MPT_ADAPTER *ioc = hd->ioc; 520 struct _CONFIG_PAGE_SCSI_DEVICE_0 *spi_dev_pg0; 521 dma_addr_t spi_dev_pg0_dma; 522 int size; 523 struct _x_config_parms cfg; 524 struct _CONFIG_PAGE_HEADER hdr; 525 int err = -EBUSY; 526 527 /* No SPI parameters for RAID devices */ 528 if (starget->channel == 0 && 529 mptspi_is_raid(hd, starget->id)) 530 return -1; 531 532 size = ioc->spi_data.sdp0length * 4; 533 /* 534 if (ioc->spi_data.sdp0length & 1) 535 size += size + 4; 536 size += 2048; 537 */ 538 539 spi_dev_pg0 = dma_alloc_coherent(&ioc->pcidev->dev, size, &spi_dev_pg0_dma, GFP_KERNEL); 540 if (spi_dev_pg0 == NULL) { 541 starget_printk(KERN_ERR, starget, MYIOC_s_FMT 542 "dma_alloc_coherent for parameters failed\n", ioc->name); 543 return -EINVAL; 544 } 545 546 memset(&hdr, 0, sizeof(hdr)); 547 548 hdr.PageVersion = ioc->spi_data.sdp0version; 549 hdr.PageLength = ioc->spi_data.sdp0length; 550 hdr.PageNumber = 0; 551 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE; 552 553 memset(&cfg, 0, sizeof(cfg)); 554 555 cfg.cfghdr.hdr = &hdr; 556 cfg.physAddr = spi_dev_pg0_dma; 557 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 558 cfg.dir = 0; 559 cfg.pageAddr = starget->id; 560 561 if (mpt_config(ioc, &cfg)) { 562 starget_printk(KERN_ERR, starget, MYIOC_s_FMT "mpt_config failed\n", ioc->name); 563 goto out_free; 564 } 565 err = 0; 566 memcpy(pass_pg0, spi_dev_pg0, size); 567 568 mptspi_print_read_nego(hd, starget, le32_to_cpu(spi_dev_pg0->NegotiatedParameters)); 569 570 out_free: 571 dma_free_coherent(&ioc->pcidev->dev, size, spi_dev_pg0, spi_dev_pg0_dma); 572 return err; 573 } 574 575 static u32 mptspi_getRP(struct scsi_target *starget) 576 { 577 u32 nego = 0; 578 579 nego |= spi_iu(starget) ? MPI_SCSIDEVPAGE1_RP_IU : 0; 580 nego |= spi_dt(starget) ? MPI_SCSIDEVPAGE1_RP_DT : 0; 581 nego |= spi_qas(starget) ? MPI_SCSIDEVPAGE1_RP_QAS : 0; 582 nego |= spi_hold_mcs(starget) ? MPI_SCSIDEVPAGE1_RP_HOLD_MCS : 0; 583 nego |= spi_wr_flow(starget) ? MPI_SCSIDEVPAGE1_RP_WR_FLOW : 0; 584 nego |= spi_rd_strm(starget) ? MPI_SCSIDEVPAGE1_RP_RD_STRM : 0; 585 nego |= spi_rti(starget) ? MPI_SCSIDEVPAGE1_RP_RTI : 0; 586 nego |= spi_pcomp_en(starget) ? MPI_SCSIDEVPAGE1_RP_PCOMP_EN : 0; 587 588 nego |= (spi_period(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD) & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK; 589 nego |= (spi_offset(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET) & MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK; 590 nego |= spi_width(starget) ? MPI_SCSIDEVPAGE1_RP_WIDE : 0; 591 592 return nego; 593 } 594 595 static void mptspi_read_parameters(struct scsi_target *starget) 596 { 597 int nego; 598 struct _CONFIG_PAGE_SCSI_DEVICE_0 spi_dev_pg0; 599 600 mptspi_read_spi_device_pg0(starget, &spi_dev_pg0); 601 602 nego = le32_to_cpu(spi_dev_pg0.NegotiatedParameters); 603 604 spi_iu(starget) = (nego & MPI_SCSIDEVPAGE0_NP_IU) ? 1 : 0; 605 spi_dt(starget) = (nego & MPI_SCSIDEVPAGE0_NP_DT) ? 1 : 0; 606 spi_qas(starget) = (nego & MPI_SCSIDEVPAGE0_NP_QAS) ? 1 : 0; 607 spi_wr_flow(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WR_FLOW) ? 1 : 0; 608 spi_rd_strm(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RD_STRM) ? 1 : 0; 609 spi_rti(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RTI) ? 1 : 0; 610 spi_pcomp_en(starget) = (nego & MPI_SCSIDEVPAGE0_NP_PCOMP_EN) ? 1 : 0; 611 spi_hold_mcs(starget) = (nego & MPI_SCSIDEVPAGE0_NP_HOLD_MCS) ? 1 : 0; 612 spi_period(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD; 613 spi_offset(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET; 614 spi_width(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WIDE) ? 1 : 0; 615 } 616 617 int 618 mptscsih_quiesce_raid(MPT_SCSI_HOST *hd, int quiesce, u8 channel, u8 id) 619 { 620 MPT_ADAPTER *ioc = hd->ioc; 621 MpiRaidActionRequest_t *pReq; 622 MPT_FRAME_HDR *mf; 623 int ret; 624 unsigned long timeleft; 625 626 mutex_lock(&ioc->internal_cmds.mutex); 627 628 /* Get and Populate a free Frame 629 */ 630 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) { 631 dfailprintk(hd->ioc, printk(MYIOC_s_WARN_FMT 632 "%s: no msg frames!\n", ioc->name, __func__)); 633 ret = -EAGAIN; 634 goto out; 635 } 636 pReq = (MpiRaidActionRequest_t *)mf; 637 if (quiesce) 638 pReq->Action = MPI_RAID_ACTION_QUIESCE_PHYS_IO; 639 else 640 pReq->Action = MPI_RAID_ACTION_ENABLE_PHYS_IO; 641 pReq->Reserved1 = 0; 642 pReq->ChainOffset = 0; 643 pReq->Function = MPI_FUNCTION_RAID_ACTION; 644 pReq->VolumeID = id; 645 pReq->VolumeBus = channel; 646 pReq->PhysDiskNum = 0; 647 pReq->MsgFlags = 0; 648 pReq->Reserved2 = 0; 649 pReq->ActionDataWord = 0; /* Reserved for this action */ 650 651 ioc->add_sge((char *)&pReq->ActionDataSGE, 652 MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1); 653 654 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "RAID Volume action=%x channel=%d id=%d\n", 655 ioc->name, pReq->Action, channel, id)); 656 657 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status) 658 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf); 659 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done, 10*HZ); 660 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) { 661 ret = -ETIME; 662 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: TIMED OUT!\n", 663 ioc->name, __func__)); 664 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) 665 goto out; 666 if (!timeleft) { 667 printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n", 668 ioc->name, __func__); 669 mpt_HardResetHandler(ioc, CAN_SLEEP); 670 mpt_free_msg_frame(ioc, mf); 671 } 672 goto out; 673 } 674 675 ret = ioc->internal_cmds.completion_code; 676 677 out: 678 CLEAR_MGMT_STATUS(ioc->internal_cmds.status) 679 mutex_unlock(&ioc->internal_cmds.mutex); 680 return ret; 681 } 682 683 static void mptspi_dv_device(struct _MPT_SCSI_HOST *hd, 684 struct scsi_device *sdev) 685 { 686 VirtTarget *vtarget = scsi_target(sdev)->hostdata; 687 MPT_ADAPTER *ioc = hd->ioc; 688 689 /* no DV on RAID devices */ 690 if (sdev->channel == 0 && 691 mptspi_is_raid(hd, sdev->id)) 692 return; 693 694 /* If this is a piece of a RAID, then quiesce first */ 695 if (sdev->channel == 1 && 696 mptscsih_quiesce_raid(hd, 1, vtarget->channel, vtarget->id) < 0) { 697 starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT 698 "Integrated RAID quiesce failed\n", ioc->name); 699 return; 700 } 701 702 hd->spi_pending |= (1 << sdev->id); 703 spi_dv_device(sdev); 704 hd->spi_pending &= ~(1 << sdev->id); 705 706 if (sdev->channel == 1 && 707 mptscsih_quiesce_raid(hd, 0, vtarget->channel, vtarget->id) < 0) 708 starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT 709 "Integrated RAID resume failed\n", ioc->name); 710 711 mptspi_read_parameters(sdev->sdev_target); 712 spi_display_xfer_agreement(sdev->sdev_target); 713 mptspi_read_parameters(sdev->sdev_target); 714 } 715 716 static int mptspi_slave_alloc(struct scsi_device *sdev) 717 { 718 MPT_SCSI_HOST *hd = shost_priv(sdev->host); 719 VirtTarget *vtarget; 720 VirtDevice *vdevice; 721 struct scsi_target *starget; 722 MPT_ADAPTER *ioc = hd->ioc; 723 724 if (sdev->channel == 1 && 725 mptscsih_is_phys_disk(ioc, 0, sdev->id) == 0) 726 return -ENXIO; 727 728 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL); 729 if (!vdevice) { 730 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", 731 ioc->name, sizeof(VirtDevice)); 732 return -ENOMEM; 733 } 734 735 vdevice->lun = sdev->lun; 736 sdev->hostdata = vdevice; 737 738 starget = scsi_target(sdev); 739 vtarget = starget->hostdata; 740 vdevice->vtarget = vtarget; 741 vtarget->num_luns++; 742 743 if (sdev->channel == 1) 744 sdev->no_uld_attach = 1; 745 746 return 0; 747 } 748 749 static int mptspi_slave_configure(struct scsi_device *sdev) 750 { 751 struct _MPT_SCSI_HOST *hd = shost_priv(sdev->host); 752 VirtTarget *vtarget = scsi_target(sdev)->hostdata; 753 int ret; 754 755 mptspi_initTarget(hd, vtarget, sdev); 756 757 ret = mptscsih_slave_configure(sdev); 758 759 if (ret) 760 return ret; 761 762 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d min_period=0x%02x" 763 " max_offset=0x%02x max_width=%d\n", hd->ioc->name, 764 sdev->id, spi_min_period(scsi_target(sdev)), 765 spi_max_offset(scsi_target(sdev)), 766 spi_max_width(scsi_target(sdev)))); 767 768 if ((sdev->channel == 1 || 769 !(mptspi_is_raid(hd, sdev->id))) && 770 !spi_initial_dv(sdev->sdev_target)) 771 mptspi_dv_device(hd, sdev); 772 773 return 0; 774 } 775 776 static int 777 mptspi_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) 778 { 779 struct _MPT_SCSI_HOST *hd = shost_priv(SCpnt->device->host); 780 VirtDevice *vdevice = SCpnt->device->hostdata; 781 MPT_ADAPTER *ioc = hd->ioc; 782 783 if (!vdevice || !vdevice->vtarget) { 784 SCpnt->result = DID_NO_CONNECT << 16; 785 done(SCpnt); 786 return 0; 787 } 788 789 if (SCpnt->device->channel == 1 && 790 mptscsih_is_phys_disk(ioc, 0, SCpnt->device->id) == 0) { 791 SCpnt->result = DID_NO_CONNECT << 16; 792 done(SCpnt); 793 return 0; 794 } 795 796 if (spi_dv_pending(scsi_target(SCpnt->device))) 797 ddvprintk(ioc, scsi_print_command(SCpnt)); 798 799 return mptscsih_qcmd(SCpnt,done); 800 } 801 802 static void mptspi_slave_destroy(struct scsi_device *sdev) 803 { 804 struct scsi_target *starget = scsi_target(sdev); 805 VirtTarget *vtarget = starget->hostdata; 806 VirtDevice *vdevice = sdev->hostdata; 807 808 /* Will this be the last lun on a non-raid device? */ 809 if (vtarget->num_luns == 1 && vdevice->configured_lun) { 810 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 811 812 /* Async Narrow */ 813 pg1.RequestedParameters = 0; 814 pg1.Reserved = 0; 815 pg1.Configuration = 0; 816 817 mptspi_write_spi_device_pg1(starget, &pg1); 818 } 819 820 mptscsih_slave_destroy(sdev); 821 } 822 823 static struct scsi_host_template mptspi_driver_template = { 824 .module = THIS_MODULE, 825 .proc_name = "mptspi", 826 .proc_info = mptscsih_proc_info, 827 .name = "MPT SPI Host", 828 .info = mptscsih_info, 829 .queuecommand = mptspi_qcmd, 830 .target_alloc = mptspi_target_alloc, 831 .slave_alloc = mptspi_slave_alloc, 832 .slave_configure = mptspi_slave_configure, 833 .target_destroy = mptspi_target_destroy, 834 .slave_destroy = mptspi_slave_destroy, 835 .change_queue_depth = mptscsih_change_queue_depth, 836 .eh_abort_handler = mptscsih_abort, 837 .eh_device_reset_handler = mptscsih_dev_reset, 838 .eh_bus_reset_handler = mptscsih_bus_reset, 839 .eh_host_reset_handler = mptscsih_host_reset, 840 .bios_param = mptscsih_bios_param, 841 .can_queue = MPT_SCSI_CAN_QUEUE, 842 .this_id = -1, 843 .sg_tablesize = MPT_SCSI_SG_DEPTH, 844 .max_sectors = 8192, 845 .cmd_per_lun = 7, 846 .use_clustering = ENABLE_CLUSTERING, 847 .shost_attrs = mptscsih_host_attrs, 848 }; 849 850 static int mptspi_write_spi_device_pg1(struct scsi_target *starget, 851 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pass_pg1) 852 { 853 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 854 struct _MPT_SCSI_HOST *hd = shost_priv(shost); 855 struct _MPT_ADAPTER *ioc = hd->ioc; 856 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pg1; 857 dma_addr_t pg1_dma; 858 int size; 859 struct _x_config_parms cfg; 860 struct _CONFIG_PAGE_HEADER hdr; 861 int err = -EBUSY; 862 863 /* don't allow updating nego parameters on RAID devices */ 864 if (starget->channel == 0 && 865 mptspi_is_raid(hd, starget->id)) 866 return -1; 867 868 size = ioc->spi_data.sdp1length * 4; 869 870 pg1 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg1_dma, GFP_KERNEL); 871 if (pg1 == NULL) { 872 starget_printk(KERN_ERR, starget, MYIOC_s_FMT 873 "dma_alloc_coherent for parameters failed\n", ioc->name); 874 return -EINVAL; 875 } 876 877 memset(&hdr, 0, sizeof(hdr)); 878 879 hdr.PageVersion = ioc->spi_data.sdp1version; 880 hdr.PageLength = ioc->spi_data.sdp1length; 881 hdr.PageNumber = 1; 882 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE; 883 884 memset(&cfg, 0, sizeof(cfg)); 885 886 cfg.cfghdr.hdr = &hdr; 887 cfg.physAddr = pg1_dma; 888 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 889 cfg.dir = 1; 890 cfg.pageAddr = starget->id; 891 892 memcpy(pg1, pass_pg1, size); 893 894 pg1->Header.PageVersion = hdr.PageVersion; 895 pg1->Header.PageLength = hdr.PageLength; 896 pg1->Header.PageNumber = hdr.PageNumber; 897 pg1->Header.PageType = hdr.PageType; 898 899 mptspi_print_write_nego(hd, starget, le32_to_cpu(pg1->RequestedParameters)); 900 901 if (mpt_config(ioc, &cfg)) { 902 starget_printk(KERN_ERR, starget, MYIOC_s_FMT 903 "mpt_config failed\n", ioc->name); 904 goto out_free; 905 } 906 err = 0; 907 908 out_free: 909 dma_free_coherent(&ioc->pcidev->dev, size, pg1, pg1_dma); 910 return err; 911 } 912 913 static void mptspi_write_offset(struct scsi_target *starget, int offset) 914 { 915 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 916 u32 nego; 917 918 if (offset < 0) 919 offset = 0; 920 921 if (offset > 255) 922 offset = 255; 923 924 if (spi_offset(starget) == -1) 925 mptspi_read_parameters(starget); 926 927 spi_offset(starget) = offset; 928 929 nego = mptspi_getRP(starget); 930 931 pg1.RequestedParameters = cpu_to_le32(nego); 932 pg1.Reserved = 0; 933 pg1.Configuration = 0; 934 935 mptspi_write_spi_device_pg1(starget, &pg1); 936 } 937 938 static void mptspi_write_period(struct scsi_target *starget, int period) 939 { 940 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 941 u32 nego; 942 943 if (period < 8) 944 period = 8; 945 946 if (period > 255) 947 period = 255; 948 949 if (spi_period(starget) == -1) 950 mptspi_read_parameters(starget); 951 952 if (period == 8) { 953 spi_iu(starget) = 1; 954 spi_dt(starget) = 1; 955 } else if (period == 9) { 956 spi_dt(starget) = 1; 957 } 958 959 spi_period(starget) = period; 960 961 nego = mptspi_getRP(starget); 962 963 pg1.RequestedParameters = cpu_to_le32(nego); 964 pg1.Reserved = 0; 965 pg1.Configuration = 0; 966 967 mptspi_write_spi_device_pg1(starget, &pg1); 968 } 969 970 static void mptspi_write_dt(struct scsi_target *starget, int dt) 971 { 972 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 973 u32 nego; 974 975 if (spi_period(starget) == -1) 976 mptspi_read_parameters(starget); 977 978 if (!dt && spi_period(starget) < 10) 979 spi_period(starget) = 10; 980 981 spi_dt(starget) = dt; 982 983 nego = mptspi_getRP(starget); 984 985 986 pg1.RequestedParameters = cpu_to_le32(nego); 987 pg1.Reserved = 0; 988 pg1.Configuration = 0; 989 990 mptspi_write_spi_device_pg1(starget, &pg1); 991 } 992 993 static void mptspi_write_iu(struct scsi_target *starget, int iu) 994 { 995 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 996 u32 nego; 997 998 if (spi_period(starget) == -1) 999 mptspi_read_parameters(starget); 1000 1001 if (!iu && spi_period(starget) < 9) 1002 spi_period(starget) = 9; 1003 1004 spi_iu(starget) = iu; 1005 1006 nego = mptspi_getRP(starget); 1007 1008 pg1.RequestedParameters = cpu_to_le32(nego); 1009 pg1.Reserved = 0; 1010 pg1.Configuration = 0; 1011 1012 mptspi_write_spi_device_pg1(starget, &pg1); 1013 } 1014 1015 #define MPTSPI_SIMPLE_TRANSPORT_PARM(parm) \ 1016 static void mptspi_write_##parm(struct scsi_target *starget, int parm)\ 1017 { \ 1018 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; \ 1019 u32 nego; \ 1020 \ 1021 spi_##parm(starget) = parm; \ 1022 \ 1023 nego = mptspi_getRP(starget); \ 1024 \ 1025 pg1.RequestedParameters = cpu_to_le32(nego); \ 1026 pg1.Reserved = 0; \ 1027 pg1.Configuration = 0; \ 1028 \ 1029 mptspi_write_spi_device_pg1(starget, &pg1); \ 1030 } 1031 1032 MPTSPI_SIMPLE_TRANSPORT_PARM(rd_strm) 1033 MPTSPI_SIMPLE_TRANSPORT_PARM(wr_flow) 1034 MPTSPI_SIMPLE_TRANSPORT_PARM(rti) 1035 MPTSPI_SIMPLE_TRANSPORT_PARM(hold_mcs) 1036 MPTSPI_SIMPLE_TRANSPORT_PARM(pcomp_en) 1037 1038 static void mptspi_write_qas(struct scsi_target *starget, int qas) 1039 { 1040 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 1041 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 1042 struct _MPT_SCSI_HOST *hd = shost_priv(shost); 1043 VirtTarget *vtarget = starget->hostdata; 1044 u32 nego; 1045 1046 if ((vtarget->negoFlags & MPT_TARGET_NO_NEGO_QAS) || 1047 hd->ioc->spi_data.noQas) 1048 spi_qas(starget) = 0; 1049 else 1050 spi_qas(starget) = qas; 1051 1052 nego = mptspi_getRP(starget); 1053 1054 pg1.RequestedParameters = cpu_to_le32(nego); 1055 pg1.Reserved = 0; 1056 pg1.Configuration = 0; 1057 1058 mptspi_write_spi_device_pg1(starget, &pg1); 1059 } 1060 1061 static void mptspi_write_width(struct scsi_target *starget, int width) 1062 { 1063 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 1064 u32 nego; 1065 1066 if (!width) { 1067 spi_dt(starget) = 0; 1068 if (spi_period(starget) < 10) 1069 spi_period(starget) = 10; 1070 } 1071 1072 spi_width(starget) = width; 1073 1074 nego = mptspi_getRP(starget); 1075 1076 pg1.RequestedParameters = cpu_to_le32(nego); 1077 pg1.Reserved = 0; 1078 pg1.Configuration = 0; 1079 1080 mptspi_write_spi_device_pg1(starget, &pg1); 1081 } 1082 1083 struct work_queue_wrapper { 1084 struct work_struct work; 1085 struct _MPT_SCSI_HOST *hd; 1086 int disk; 1087 }; 1088 1089 static void mpt_work_wrapper(struct work_struct *work) 1090 { 1091 struct work_queue_wrapper *wqw = 1092 container_of(work, struct work_queue_wrapper, work); 1093 struct _MPT_SCSI_HOST *hd = wqw->hd; 1094 MPT_ADAPTER *ioc = hd->ioc; 1095 struct Scsi_Host *shost = ioc->sh; 1096 struct scsi_device *sdev; 1097 int disk = wqw->disk; 1098 struct _CONFIG_PAGE_IOC_3 *pg3; 1099 1100 kfree(wqw); 1101 1102 mpt_findImVolumes(ioc); 1103 pg3 = ioc->raid_data.pIocPg3; 1104 if (!pg3) 1105 return; 1106 1107 shost_for_each_device(sdev,shost) { 1108 struct scsi_target *starget = scsi_target(sdev); 1109 VirtTarget *vtarget = starget->hostdata; 1110 1111 /* only want to search RAID components */ 1112 if (sdev->channel != 1) 1113 continue; 1114 1115 /* The id is the raid PhysDiskNum, even if 1116 * starget->id is the actual target address */ 1117 if(vtarget->id != disk) 1118 continue; 1119 1120 starget_printk(KERN_INFO, vtarget->starget, MYIOC_s_FMT 1121 "Integrated RAID requests DV of new device\n", ioc->name); 1122 mptspi_dv_device(hd, sdev); 1123 } 1124 shost_printk(KERN_INFO, shost, MYIOC_s_FMT 1125 "Integrated RAID detects new device %d\n", ioc->name, disk); 1126 scsi_scan_target(&ioc->sh->shost_gendev, 1, disk, 0, 1); 1127 } 1128 1129 1130 static void mpt_dv_raid(struct _MPT_SCSI_HOST *hd, int disk) 1131 { 1132 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC); 1133 MPT_ADAPTER *ioc = hd->ioc; 1134 1135 if (!wqw) { 1136 shost_printk(KERN_ERR, ioc->sh, MYIOC_s_FMT 1137 "Failed to act on RAID event for physical disk %d\n", 1138 ioc->name, disk); 1139 return; 1140 } 1141 INIT_WORK(&wqw->work, mpt_work_wrapper); 1142 wqw->hd = hd; 1143 wqw->disk = disk; 1144 1145 schedule_work(&wqw->work); 1146 } 1147 1148 static int 1149 mptspi_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 1150 { 1151 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 1152 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh); 1153 1154 if (hd && event == MPI_EVENT_INTEGRATED_RAID) { 1155 int reason 1156 = (le32_to_cpu(pEvReply->Data[0]) & 0x00FF0000) >> 16; 1157 1158 if (reason == MPI_EVENT_RAID_RC_DOMAIN_VAL_NEEDED) { 1159 int disk = (le32_to_cpu(pEvReply->Data[0]) & 0xFF000000) >> 24; 1160 mpt_dv_raid(hd, disk); 1161 } 1162 } 1163 return mptscsih_event_process(ioc, pEvReply); 1164 } 1165 1166 static int 1167 mptspi_deny_binding(struct scsi_target *starget) 1168 { 1169 struct _MPT_SCSI_HOST *hd = 1170 (struct _MPT_SCSI_HOST *)dev_to_shost(starget->dev.parent)->hostdata; 1171 return ((mptspi_is_raid(hd, starget->id)) && 1172 starget->channel == 0) ? 1 : 0; 1173 } 1174 1175 static struct spi_function_template mptspi_transport_functions = { 1176 .get_offset = mptspi_read_parameters, 1177 .set_offset = mptspi_write_offset, 1178 .show_offset = 1, 1179 .get_period = mptspi_read_parameters, 1180 .set_period = mptspi_write_period, 1181 .show_period = 1, 1182 .get_width = mptspi_read_parameters, 1183 .set_width = mptspi_write_width, 1184 .show_width = 1, 1185 .get_iu = mptspi_read_parameters, 1186 .set_iu = mptspi_write_iu, 1187 .show_iu = 1, 1188 .get_dt = mptspi_read_parameters, 1189 .set_dt = mptspi_write_dt, 1190 .show_dt = 1, 1191 .get_qas = mptspi_read_parameters, 1192 .set_qas = mptspi_write_qas, 1193 .show_qas = 1, 1194 .get_wr_flow = mptspi_read_parameters, 1195 .set_wr_flow = mptspi_write_wr_flow, 1196 .show_wr_flow = 1, 1197 .get_rd_strm = mptspi_read_parameters, 1198 .set_rd_strm = mptspi_write_rd_strm, 1199 .show_rd_strm = 1, 1200 .get_rti = mptspi_read_parameters, 1201 .set_rti = mptspi_write_rti, 1202 .show_rti = 1, 1203 .get_pcomp_en = mptspi_read_parameters, 1204 .set_pcomp_en = mptspi_write_pcomp_en, 1205 .show_pcomp_en = 1, 1206 .get_hold_mcs = mptspi_read_parameters, 1207 .set_hold_mcs = mptspi_write_hold_mcs, 1208 .show_hold_mcs = 1, 1209 .deny_binding = mptspi_deny_binding, 1210 }; 1211 1212 /**************************************************************************** 1213 * Supported hardware 1214 */ 1215 1216 static struct pci_device_id mptspi_pci_table[] = { 1217 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030, 1218 PCI_ANY_ID, PCI_ANY_ID }, 1219 { PCI_VENDOR_ID_ATTO, MPI_MANUFACTPAGE_DEVID_53C1030, 1220 PCI_ANY_ID, PCI_ANY_ID }, 1221 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1035, 1222 PCI_ANY_ID, PCI_ANY_ID }, 1223 {0} /* Terminating entry */ 1224 }; 1225 MODULE_DEVICE_TABLE(pci, mptspi_pci_table); 1226 1227 1228 /* 1229 * renegotiate for a given target 1230 */ 1231 static void 1232 mptspi_dv_renegotiate_work(struct work_struct *work) 1233 { 1234 struct work_queue_wrapper *wqw = 1235 container_of(work, struct work_queue_wrapper, work); 1236 struct _MPT_SCSI_HOST *hd = wqw->hd; 1237 struct scsi_device *sdev; 1238 struct scsi_target *starget; 1239 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 1240 u32 nego; 1241 MPT_ADAPTER *ioc = hd->ioc; 1242 1243 kfree(wqw); 1244 1245 if (hd->spi_pending) { 1246 shost_for_each_device(sdev, ioc->sh) { 1247 if (hd->spi_pending & (1 << sdev->id)) 1248 continue; 1249 starget = scsi_target(sdev); 1250 nego = mptspi_getRP(starget); 1251 pg1.RequestedParameters = cpu_to_le32(nego); 1252 pg1.Reserved = 0; 1253 pg1.Configuration = 0; 1254 mptspi_write_spi_device_pg1(starget, &pg1); 1255 } 1256 } else { 1257 shost_for_each_device(sdev, ioc->sh) 1258 mptspi_dv_device(hd, sdev); 1259 } 1260 } 1261 1262 static void 1263 mptspi_dv_renegotiate(struct _MPT_SCSI_HOST *hd) 1264 { 1265 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC); 1266 1267 if (!wqw) 1268 return; 1269 1270 INIT_WORK(&wqw->work, mptspi_dv_renegotiate_work); 1271 wqw->hd = hd; 1272 1273 schedule_work(&wqw->work); 1274 } 1275 1276 /* 1277 * spi module reset handler 1278 */ 1279 static int 1280 mptspi_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 1281 { 1282 int rc; 1283 1284 rc = mptscsih_ioc_reset(ioc, reset_phase); 1285 1286 /* only try to do a renegotiation if we're properly set up 1287 * if we get an ioc fault on bringup, ioc->sh will be NULL */ 1288 if (reset_phase == MPT_IOC_POST_RESET && 1289 ioc->sh) { 1290 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh); 1291 1292 mptspi_dv_renegotiate(hd); 1293 } 1294 1295 return rc; 1296 } 1297 1298 #ifdef CONFIG_PM 1299 /* 1300 * spi module resume handler 1301 */ 1302 static int 1303 mptspi_resume(struct pci_dev *pdev) 1304 { 1305 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1306 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh); 1307 int rc; 1308 1309 rc = mptscsih_resume(pdev); 1310 mptspi_dv_renegotiate(hd); 1311 1312 return rc; 1313 } 1314 #endif 1315 1316 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1317 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1318 /* 1319 * mptspi_probe - Installs scsi devices per bus. 1320 * @pdev: Pointer to pci_dev structure 1321 * 1322 * Returns 0 for success, non-zero for failure. 1323 * 1324 */ 1325 static int 1326 mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1327 { 1328 struct Scsi_Host *sh; 1329 MPT_SCSI_HOST *hd; 1330 MPT_ADAPTER *ioc; 1331 unsigned long flags; 1332 int ii; 1333 int numSGE = 0; 1334 int scale; 1335 int ioc_cap; 1336 int error=0; 1337 int r; 1338 1339 if ((r = mpt_attach(pdev,id)) != 0) 1340 return r; 1341 1342 ioc = pci_get_drvdata(pdev); 1343 ioc->DoneCtx = mptspiDoneCtx; 1344 ioc->TaskCtx = mptspiTaskCtx; 1345 ioc->InternalCtx = mptspiInternalCtx; 1346 1347 /* Added sanity check on readiness of the MPT adapter. 1348 */ 1349 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 1350 printk(MYIOC_s_WARN_FMT 1351 "Skipping because it's not operational!\n", 1352 ioc->name); 1353 error = -ENODEV; 1354 goto out_mptspi_probe; 1355 } 1356 1357 if (!ioc->active) { 1358 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 1359 ioc->name); 1360 error = -ENODEV; 1361 goto out_mptspi_probe; 1362 } 1363 1364 /* Sanity check - ensure at least 1 port is INITIATOR capable 1365 */ 1366 ioc_cap = 0; 1367 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1368 if (ioc->pfacts[ii].ProtocolFlags & 1369 MPI_PORTFACTS_PROTOCOL_INITIATOR) 1370 ioc_cap ++; 1371 } 1372 1373 if (!ioc_cap) { 1374 printk(MYIOC_s_WARN_FMT 1375 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", 1376 ioc->name, ioc); 1377 return 0; 1378 } 1379 1380 sh = scsi_host_alloc(&mptspi_driver_template, sizeof(MPT_SCSI_HOST)); 1381 1382 if (!sh) { 1383 printk(MYIOC_s_WARN_FMT 1384 "Unable to register controller with SCSI subsystem\n", 1385 ioc->name); 1386 error = -1; 1387 goto out_mptspi_probe; 1388 } 1389 1390 spin_lock_irqsave(&ioc->FreeQlock, flags); 1391 1392 /* Attach the SCSI Host to the IOC structure 1393 */ 1394 ioc->sh = sh; 1395 1396 sh->io_port = 0; 1397 sh->n_io_port = 0; 1398 sh->irq = 0; 1399 1400 /* set 16 byte cdb's */ 1401 sh->max_cmd_len = 16; 1402 1403 /* Yikes! This is important! 1404 * Otherwise, by default, linux 1405 * only scans target IDs 0-7! 1406 * pfactsN->MaxDevices unreliable 1407 * (not supported in early 1408 * versions of the FW). 1409 * max_id = 1 + actual max id, 1410 * max_lun = 1 + actual last lun, 1411 * see hosts.h :o( 1412 */ 1413 sh->max_id = ioc->devices_per_bus; 1414 1415 sh->max_lun = MPT_LAST_LUN + 1; 1416 /* 1417 * If RAID Firmware Detected, setup virtual channel 1418 */ 1419 if (ioc->ir_firmware) 1420 sh->max_channel = 1; 1421 else 1422 sh->max_channel = 0; 1423 sh->this_id = ioc->pfacts[0].PortSCSIID; 1424 1425 /* Required entry. 1426 */ 1427 sh->unique_id = ioc->id; 1428 1429 /* Verify that we won't exceed the maximum 1430 * number of chain buffers 1431 * We can optimize: ZZ = req_sz/sizeof(SGE) 1432 * For 32bit SGE's: 1433 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 1434 * + (req_sz - 64)/sizeof(SGE) 1435 * A slightly different algorithm is required for 1436 * 64bit SGEs. 1437 */ 1438 scale = ioc->req_sz/ioc->SGE_size; 1439 if (ioc->sg_addr_size == sizeof(u64)) { 1440 numSGE = (scale - 1) * 1441 (ioc->facts.MaxChainDepth-1) + scale + 1442 (ioc->req_sz - 60) / ioc->SGE_size; 1443 } else { 1444 numSGE = 1 + (scale - 1) * 1445 (ioc->facts.MaxChainDepth-1) + scale + 1446 (ioc->req_sz - 64) / ioc->SGE_size; 1447 } 1448 1449 if (numSGE < sh->sg_tablesize) { 1450 /* Reset this value */ 1451 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1452 "Resetting sg_tablesize to %d from %d\n", 1453 ioc->name, numSGE, sh->sg_tablesize)); 1454 sh->sg_tablesize = numSGE; 1455 } 1456 1457 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1458 1459 hd = shost_priv(sh); 1460 hd->ioc = ioc; 1461 1462 /* SCSI needs scsi_cmnd lookup table! 1463 * (with size equal to req_depth*PtrSz!) 1464 */ 1465 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); 1466 if (!ioc->ScsiLookup) { 1467 error = -ENOMEM; 1468 goto out_mptspi_probe; 1469 } 1470 spin_lock_init(&ioc->scsi_lookup_lock); 1471 1472 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n", 1473 ioc->name, ioc->ScsiLookup)); 1474 1475 ioc->spi_data.Saf_Te = mpt_saf_te; 1476 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1477 "saf_te %x\n", 1478 ioc->name, 1479 mpt_saf_te)); 1480 ioc->spi_data.noQas = 0; 1481 1482 hd->last_queue_full = 0; 1483 hd->spi_pending = 0; 1484 1485 /* Some versions of the firmware don't support page 0; without 1486 * that we can't get the parameters */ 1487 if (ioc->spi_data.sdp0length != 0) 1488 sh->transportt = mptspi_transport_template; 1489 1490 error = scsi_add_host (sh, &ioc->pcidev->dev); 1491 if(error) { 1492 dprintk(ioc, printk(MYIOC_s_ERR_FMT 1493 "scsi_add_host failed\n", ioc->name)); 1494 goto out_mptspi_probe; 1495 } 1496 1497 /* 1498 * issue internal bus reset 1499 */ 1500 if (ioc->spi_data.bus_reset) 1501 mptscsih_IssueTaskMgmt(hd, 1502 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS, 1503 0, 0, 0, 0, 5); 1504 1505 scsi_scan_host(sh); 1506 return 0; 1507 1508 out_mptspi_probe: 1509 1510 mptscsih_remove(pdev); 1511 return error; 1512 } 1513 1514 static struct pci_driver mptspi_driver = { 1515 .name = "mptspi", 1516 .id_table = mptspi_pci_table, 1517 .probe = mptspi_probe, 1518 .remove = __devexit_p(mptscsih_remove), 1519 .shutdown = mptscsih_shutdown, 1520 #ifdef CONFIG_PM 1521 .suspend = mptscsih_suspend, 1522 .resume = mptspi_resume, 1523 #endif 1524 }; 1525 1526 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1527 /** 1528 * mptspi_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer. 1529 * 1530 * Returns 0 for success, non-zero for failure. 1531 */ 1532 static int __init 1533 mptspi_init(void) 1534 { 1535 int error; 1536 1537 show_mptmod_ver(my_NAME, my_VERSION); 1538 1539 mptspi_transport_template = spi_attach_transport(&mptspi_transport_functions); 1540 if (!mptspi_transport_template) 1541 return -ENODEV; 1542 1543 mptspiDoneCtx = mpt_register(mptscsih_io_done, MPTSPI_DRIVER); 1544 mptspiTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTSPI_DRIVER); 1545 mptspiInternalCtx = mpt_register(mptscsih_scandv_complete, MPTSPI_DRIVER); 1546 1547 mpt_event_register(mptspiDoneCtx, mptspi_event_process); 1548 mpt_reset_register(mptspiDoneCtx, mptspi_ioc_reset); 1549 1550 error = pci_register_driver(&mptspi_driver); 1551 if (error) 1552 spi_release_transport(mptspi_transport_template); 1553 1554 return error; 1555 } 1556 1557 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1558 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1559 /** 1560 * mptspi_exit - Unregisters MPT adapter(s) 1561 */ 1562 static void __exit 1563 mptspi_exit(void) 1564 { 1565 pci_unregister_driver(&mptspi_driver); 1566 1567 mpt_reset_deregister(mptspiDoneCtx); 1568 mpt_event_deregister(mptspiDoneCtx); 1569 1570 mpt_deregister(mptspiInternalCtx); 1571 mpt_deregister(mptspiTaskCtx); 1572 mpt_deregister(mptspiDoneCtx); 1573 spi_release_transport(mptspi_transport_template); 1574 } 1575 1576 module_init(mptspi_init); 1577 module_exit(mptspi_exit); 1578