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 77MODULE_AUTHOR(MODULEAUTHOR); 78MODULE_DESCRIPTION(my_NAME); 79MODULE_LICENSE("GPL"); 80MODULE_VERSION(my_VERSION); 81 82/* Command line args */ 83static int mpt_saf_te = MPTSCSIH_SAF_TE; 84module_param(mpt_saf_te, int, 0); 85MODULE_PARM_DESC(mpt_saf_te, " Force enabling SEP Processor: enable=1 (default=MPTSCSIH_SAF_TE=0)"); 86 87static void mptspi_write_offset(struct scsi_target *, int); 88static void mptspi_write_width(struct scsi_target *, int); 89static int mptspi_write_spi_device_pg1(struct scsi_target *, 90 struct _CONFIG_PAGE_SCSI_DEVICE_1 *); 91 92static struct scsi_transport_template *mptspi_transport_template = NULL; 93 94static u8 mptspiDoneCtx = MPT_MAX_PROTOCOL_DRIVERS; 95static u8 mptspiTaskCtx = MPT_MAX_PROTOCOL_DRIVERS; 96static 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 **/ 107static void 108mptspi_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 **/ 253static int 254mptspi_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 **/ 332static void 333mptspi_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 */ 380static int 381mptspi_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 402static 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 461static void 462mptspi_target_destroy(struct scsi_target *starget) 463{ 464 kfree(starget->hostdata); 465 starget->hostdata = NULL; 466} 467 468/** 469 * mptspi_print_write_nego - negotiation parameters debug info that is being sent 470 * @hd: Pointer to a SCSI HOST structure 471 * @starget: SCSI target 472 * @ii: negotiation parameters 473 * 474 */ 475static void 476mptspi_print_write_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii) 477{ 478 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Requested = 0x%08x" 479 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n", 480 hd->ioc->name, starget->id, ii, 481 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "", 482 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF), 483 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "", 484 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "", 485 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "", 486 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "", 487 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "", 488 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "", 489 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "", 490 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": "")); 491} 492 493/** 494 * mptspi_print_read_nego - negotiation parameters debug info that is being read 495 * @hd: Pointer to a SCSI HOST structure 496 * @starget: SCSI target 497 * @ii: negotiation parameters 498 * 499 */ 500static void 501mptspi_print_read_nego(struct _MPT_SCSI_HOST *hd, struct scsi_target *starget, u32 ii) 502{ 503 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d Read = 0x%08x" 504 " ( %s factor = 0x%02x @ offset = 0x%02x %s%s%s%s%s%s%s%s)\n", 505 hd->ioc->name, starget->id, ii, 506 ii & MPI_SCSIDEVPAGE0_NP_WIDE ? "Wide ": "", 507 ((ii >> 8) & 0xFF), ((ii >> 16) & 0xFF), 508 ii & MPI_SCSIDEVPAGE0_NP_IU ? "IU ": "", 509 ii & MPI_SCSIDEVPAGE0_NP_DT ? "DT ": "", 510 ii & MPI_SCSIDEVPAGE0_NP_QAS ? "QAS ": "", 511 ii & MPI_SCSIDEVPAGE0_NP_HOLD_MCS ? "HOLDMCS ": "", 512 ii & MPI_SCSIDEVPAGE0_NP_WR_FLOW ? "WRFLOW ": "", 513 ii & MPI_SCSIDEVPAGE0_NP_RD_STRM ? "RDSTRM ": "", 514 ii & MPI_SCSIDEVPAGE0_NP_RTI ? "RTI ": "", 515 ii & MPI_SCSIDEVPAGE0_NP_PCOMP_EN ? "PCOMP ": "")); 516} 517 518static int mptspi_read_spi_device_pg0(struct scsi_target *starget, 519 struct _CONFIG_PAGE_SCSI_DEVICE_0 *pass_pg0) 520{ 521 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 522 struct _MPT_SCSI_HOST *hd = shost_priv(shost); 523 struct _MPT_ADAPTER *ioc = hd->ioc; 524 struct _CONFIG_PAGE_SCSI_DEVICE_0 *spi_dev_pg0; 525 dma_addr_t spi_dev_pg0_dma; 526 int size; 527 struct _x_config_parms cfg; 528 struct _CONFIG_PAGE_HEADER hdr; 529 int err = -EBUSY; 530 531 /* No SPI parameters for RAID devices */ 532 if (starget->channel == 0 && 533 mptspi_is_raid(hd, starget->id)) 534 return -1; 535 536 size = ioc->spi_data.sdp0length * 4; 537 /* 538 if (ioc->spi_data.sdp0length & 1) 539 size += size + 4; 540 size += 2048; 541 */ 542 543 spi_dev_pg0 = dma_alloc_coherent(&ioc->pcidev->dev, size, &spi_dev_pg0_dma, GFP_KERNEL); 544 if (spi_dev_pg0 == NULL) { 545 starget_printk(KERN_ERR, starget, MYIOC_s_FMT 546 "dma_alloc_coherent for parameters failed\n", ioc->name); 547 return -EINVAL; 548 } 549 550 memset(&hdr, 0, sizeof(hdr)); 551 552 hdr.PageVersion = ioc->spi_data.sdp0version; 553 hdr.PageLength = ioc->spi_data.sdp0length; 554 hdr.PageNumber = 0; 555 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE; 556 557 memset(&cfg, 0, sizeof(cfg)); 558 559 cfg.cfghdr.hdr = &hdr; 560 cfg.physAddr = spi_dev_pg0_dma; 561 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 562 cfg.dir = 0; 563 cfg.pageAddr = starget->id; 564 cfg.timeout = 60; 565 566 if (mpt_config(ioc, &cfg)) { 567 starget_printk(KERN_ERR, starget, MYIOC_s_FMT "mpt_config failed\n", ioc->name); 568 goto out_free; 569 } 570 err = 0; 571 memcpy(pass_pg0, spi_dev_pg0, size); 572 573 mptspi_print_read_nego(hd, starget, le32_to_cpu(spi_dev_pg0->NegotiatedParameters)); 574 575 out_free: 576 dma_free_coherent(&ioc->pcidev->dev, size, spi_dev_pg0, spi_dev_pg0_dma); 577 return err; 578} 579 580static u32 mptspi_getRP(struct scsi_target *starget) 581{ 582 u32 nego = 0; 583 584 nego |= spi_iu(starget) ? MPI_SCSIDEVPAGE1_RP_IU : 0; 585 nego |= spi_dt(starget) ? MPI_SCSIDEVPAGE1_RP_DT : 0; 586 nego |= spi_qas(starget) ? MPI_SCSIDEVPAGE1_RP_QAS : 0; 587 nego |= spi_hold_mcs(starget) ? MPI_SCSIDEVPAGE1_RP_HOLD_MCS : 0; 588 nego |= spi_wr_flow(starget) ? MPI_SCSIDEVPAGE1_RP_WR_FLOW : 0; 589 nego |= spi_rd_strm(starget) ? MPI_SCSIDEVPAGE1_RP_RD_STRM : 0; 590 nego |= spi_rti(starget) ? MPI_SCSIDEVPAGE1_RP_RTI : 0; 591 nego |= spi_pcomp_en(starget) ? MPI_SCSIDEVPAGE1_RP_PCOMP_EN : 0; 592 593 nego |= (spi_period(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD) & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK; 594 nego |= (spi_offset(starget) << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET) & MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK; 595 nego |= spi_width(starget) ? MPI_SCSIDEVPAGE1_RP_WIDE : 0; 596 597 return nego; 598} 599 600static void mptspi_read_parameters(struct scsi_target *starget) 601{ 602 int nego; 603 struct _CONFIG_PAGE_SCSI_DEVICE_0 spi_dev_pg0; 604 605 mptspi_read_spi_device_pg0(starget, &spi_dev_pg0); 606 607 nego = le32_to_cpu(spi_dev_pg0.NegotiatedParameters); 608 609 spi_iu(starget) = (nego & MPI_SCSIDEVPAGE0_NP_IU) ? 1 : 0; 610 spi_dt(starget) = (nego & MPI_SCSIDEVPAGE0_NP_DT) ? 1 : 0; 611 spi_qas(starget) = (nego & MPI_SCSIDEVPAGE0_NP_QAS) ? 1 : 0; 612 spi_wr_flow(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WR_FLOW) ? 1 : 0; 613 spi_rd_strm(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RD_STRM) ? 1 : 0; 614 spi_rti(starget) = (nego & MPI_SCSIDEVPAGE0_NP_RTI) ? 1 : 0; 615 spi_pcomp_en(starget) = (nego & MPI_SCSIDEVPAGE0_NP_PCOMP_EN) ? 1 : 0; 616 spi_hold_mcs(starget) = (nego & MPI_SCSIDEVPAGE0_NP_HOLD_MCS) ? 1 : 0; 617 spi_period(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD; 618 spi_offset(starget) = (nego & MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK) >> MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET; 619 spi_width(starget) = (nego & MPI_SCSIDEVPAGE0_NP_WIDE) ? 1 : 0; 620} 621 622static int 623mptscsih_quiesce_raid(MPT_SCSI_HOST *hd, int quiesce, u8 channel, u8 id) 624{ 625 MPT_ADAPTER *ioc = hd->ioc; 626 MpiRaidActionRequest_t *pReq; 627 MPT_FRAME_HDR *mf; 628 int ret; 629 unsigned long timeleft; 630 631 mutex_lock(&ioc->internal_cmds.mutex); 632 633 /* Get and Populate a free Frame 634 */ 635 if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) { 636 dfailprintk(hd->ioc, printk(MYIOC_s_WARN_FMT 637 "%s: no msg frames!\n", ioc->name, __func__)); 638 ret = -EAGAIN; 639 goto out; 640 } 641 pReq = (MpiRaidActionRequest_t *)mf; 642 if (quiesce) 643 pReq->Action = MPI_RAID_ACTION_QUIESCE_PHYS_IO; 644 else 645 pReq->Action = MPI_RAID_ACTION_ENABLE_PHYS_IO; 646 pReq->Reserved1 = 0; 647 pReq->ChainOffset = 0; 648 pReq->Function = MPI_FUNCTION_RAID_ACTION; 649 pReq->VolumeID = id; 650 pReq->VolumeBus = channel; 651 pReq->PhysDiskNum = 0; 652 pReq->MsgFlags = 0; 653 pReq->Reserved2 = 0; 654 pReq->ActionDataWord = 0; /* Reserved for this action */ 655 656 ioc->add_sge((char *)&pReq->ActionDataSGE, 657 MPT_SGE_FLAGS_SSIMPLE_READ | 0, (dma_addr_t) -1); 658 659 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT "RAID Volume action=%x channel=%d id=%d\n", 660 ioc->name, pReq->Action, channel, id)); 661 662 INITIALIZE_MGMT_STATUS(ioc->internal_cmds.status) 663 mpt_put_msg_frame(ioc->InternalCtx, ioc, mf); 664 timeleft = wait_for_completion_timeout(&ioc->internal_cmds.done, 10*HZ); 665 if (!(ioc->internal_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) { 666 ret = -ETIME; 667 dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: TIMED OUT!\n", 668 ioc->name, __func__)); 669 if (ioc->internal_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) 670 goto out; 671 if (!timeleft) { 672 printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n", 673 ioc->name, __func__); 674 mpt_HardResetHandler(ioc, CAN_SLEEP); 675 mpt_free_msg_frame(ioc, mf); 676 } 677 goto out; 678 } 679 680 ret = ioc->internal_cmds.completion_code; 681 682 out: 683 CLEAR_MGMT_STATUS(ioc->internal_cmds.status) 684 mutex_unlock(&ioc->internal_cmds.mutex); 685 return ret; 686} 687 688static void mptspi_dv_device(struct _MPT_SCSI_HOST *hd, 689 struct scsi_device *sdev) 690{ 691 VirtTarget *vtarget = scsi_target(sdev)->hostdata; 692 MPT_ADAPTER *ioc = hd->ioc; 693 694 /* no DV on RAID devices */ 695 if (sdev->channel == 0 && 696 mptspi_is_raid(hd, sdev->id)) 697 return; 698 699 /* If this is a piece of a RAID, then quiesce first */ 700 if (sdev->channel == 1 && 701 mptscsih_quiesce_raid(hd, 1, vtarget->channel, vtarget->id) < 0) { 702 starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT 703 "Integrated RAID quiesce failed\n", ioc->name); 704 return; 705 } 706 707 hd->spi_pending |= (1 << sdev->id); 708 spi_dv_device(sdev); 709 hd->spi_pending &= ~(1 << sdev->id); 710 711 if (sdev->channel == 1 && 712 mptscsih_quiesce_raid(hd, 0, vtarget->channel, vtarget->id) < 0) 713 starget_printk(KERN_ERR, scsi_target(sdev), MYIOC_s_FMT 714 "Integrated RAID resume failed\n", ioc->name); 715 716 mptspi_read_parameters(sdev->sdev_target); 717 spi_display_xfer_agreement(sdev->sdev_target); 718 mptspi_read_parameters(sdev->sdev_target); 719} 720 721static int mptspi_slave_alloc(struct scsi_device *sdev) 722{ 723 MPT_SCSI_HOST *hd = shost_priv(sdev->host); 724 VirtTarget *vtarget; 725 VirtDevice *vdevice; 726 struct scsi_target *starget; 727 MPT_ADAPTER *ioc = hd->ioc; 728 729 if (sdev->channel == 1 && 730 mptscsih_is_phys_disk(ioc, 0, sdev->id) == 0) 731 return -ENXIO; 732 733 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL); 734 if (!vdevice) { 735 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", 736 ioc->name, sizeof(VirtDevice)); 737 return -ENOMEM; 738 } 739 740 vdevice->lun = sdev->lun; 741 sdev->hostdata = vdevice; 742 743 starget = scsi_target(sdev); 744 vtarget = starget->hostdata; 745 vdevice->vtarget = vtarget; 746 vtarget->num_luns++; 747 748 if (sdev->channel == 1) 749 sdev->no_uld_attach = 1; 750 751 return 0; 752} 753 754static int mptspi_slave_configure(struct scsi_device *sdev) 755{ 756 struct _MPT_SCSI_HOST *hd = shost_priv(sdev->host); 757 VirtTarget *vtarget = scsi_target(sdev)->hostdata; 758 int ret; 759 760 mptspi_initTarget(hd, vtarget, sdev); 761 762 ret = mptscsih_slave_configure(sdev); 763 764 if (ret) 765 return ret; 766 767 ddvprintk(hd->ioc, printk(MYIOC_s_DEBUG_FMT "id=%d min_period=0x%02x" 768 " max_offset=0x%02x max_width=%d\n", hd->ioc->name, 769 sdev->id, spi_min_period(scsi_target(sdev)), 770 spi_max_offset(scsi_target(sdev)), 771 spi_max_width(scsi_target(sdev)))); 772 773 if ((sdev->channel == 1 || 774 !(mptspi_is_raid(hd, sdev->id))) && 775 !spi_initial_dv(sdev->sdev_target)) 776 mptspi_dv_device(hd, sdev); 777 778 return 0; 779} 780 781static int 782mptspi_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt) 783{ 784 struct _MPT_SCSI_HOST *hd = shost_priv(shost); 785 VirtDevice *vdevice = SCpnt->device->hostdata; 786 MPT_ADAPTER *ioc = hd->ioc; 787 788 if (!vdevice || !vdevice->vtarget) { 789 SCpnt->result = DID_NO_CONNECT << 16; 790 SCpnt->scsi_done(SCpnt); 791 return 0; 792 } 793 794 if (SCpnt->device->channel == 1 && 795 mptscsih_is_phys_disk(ioc, 0, SCpnt->device->id) == 0) { 796 SCpnt->result = DID_NO_CONNECT << 16; 797 SCpnt->scsi_done(SCpnt); 798 return 0; 799 } 800 801 if (spi_dv_pending(scsi_target(SCpnt->device))) 802 ddvprintk(ioc, scsi_print_command(SCpnt)); 803 804 return mptscsih_qcmd(SCpnt); 805} 806 807static void mptspi_slave_destroy(struct scsi_device *sdev) 808{ 809 struct scsi_target *starget = scsi_target(sdev); 810 VirtTarget *vtarget = starget->hostdata; 811 VirtDevice *vdevice = sdev->hostdata; 812 813 /* Will this be the last lun on a non-raid device? */ 814 if (vtarget->num_luns == 1 && vdevice->configured_lun) { 815 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 816 817 /* Async Narrow */ 818 pg1.RequestedParameters = 0; 819 pg1.Reserved = 0; 820 pg1.Configuration = 0; 821 822 mptspi_write_spi_device_pg1(starget, &pg1); 823 } 824 825 mptscsih_slave_destroy(sdev); 826} 827 828static struct scsi_host_template mptspi_driver_template = { 829 .module = THIS_MODULE, 830 .proc_name = "mptspi", 831 .show_info = mptscsih_show_info, 832 .name = "MPT SPI Host", 833 .info = mptscsih_info, 834 .queuecommand = mptspi_qcmd, 835 .target_alloc = mptspi_target_alloc, 836 .slave_alloc = mptspi_slave_alloc, 837 .slave_configure = mptspi_slave_configure, 838 .target_destroy = mptspi_target_destroy, 839 .slave_destroy = mptspi_slave_destroy, 840 .change_queue_depth = mptscsih_change_queue_depth, 841 .eh_abort_handler = mptscsih_abort, 842 .eh_device_reset_handler = mptscsih_dev_reset, 843 .eh_bus_reset_handler = mptscsih_bus_reset, 844 .eh_host_reset_handler = mptscsih_host_reset, 845 .bios_param = mptscsih_bios_param, 846 .can_queue = MPT_SCSI_CAN_QUEUE, 847 .this_id = -1, 848 .sg_tablesize = MPT_SCSI_SG_DEPTH, 849 .max_sectors = 8192, 850 .cmd_per_lun = 7, 851 .use_clustering = ENABLE_CLUSTERING, 852 .shost_attrs = mptscsih_host_attrs, 853}; 854 855static int mptspi_write_spi_device_pg1(struct scsi_target *starget, 856 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pass_pg1) 857{ 858 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 859 struct _MPT_SCSI_HOST *hd = shost_priv(shost); 860 struct _MPT_ADAPTER *ioc = hd->ioc; 861 struct _CONFIG_PAGE_SCSI_DEVICE_1 *pg1; 862 dma_addr_t pg1_dma; 863 int size; 864 struct _x_config_parms cfg; 865 struct _CONFIG_PAGE_HEADER hdr; 866 int err = -EBUSY; 867 u32 nego_parms; 868 u32 period; 869 struct scsi_device *sdev; 870 int i; 871 872 /* don't allow updating nego parameters on RAID devices */ 873 if (starget->channel == 0 && 874 mptspi_is_raid(hd, starget->id)) 875 return -1; 876 877 size = ioc->spi_data.sdp1length * 4; 878 879 pg1 = dma_alloc_coherent(&ioc->pcidev->dev, size, &pg1_dma, GFP_KERNEL); 880 if (pg1 == NULL) { 881 starget_printk(KERN_ERR, starget, MYIOC_s_FMT 882 "dma_alloc_coherent for parameters failed\n", ioc->name); 883 return -EINVAL; 884 } 885 886 memset(&hdr, 0, sizeof(hdr)); 887 888 hdr.PageVersion = ioc->spi_data.sdp1version; 889 hdr.PageLength = ioc->spi_data.sdp1length; 890 hdr.PageNumber = 1; 891 hdr.PageType = MPI_CONFIG_PAGETYPE_SCSI_DEVICE; 892 893 memset(&cfg, 0, sizeof(cfg)); 894 895 cfg.cfghdr.hdr = &hdr; 896 cfg.physAddr = pg1_dma; 897 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 898 cfg.dir = 1; 899 cfg.pageAddr = starget->id; 900 901 memcpy(pg1, pass_pg1, size); 902 903 pg1->Header.PageVersion = hdr.PageVersion; 904 pg1->Header.PageLength = hdr.PageLength; 905 pg1->Header.PageNumber = hdr.PageNumber; 906 pg1->Header.PageType = hdr.PageType; 907 908 nego_parms = le32_to_cpu(pg1->RequestedParameters); 909 period = (nego_parms & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK) >> 910 MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD; 911 if (period == 8) { 912 /* Turn on inline data padding for TAPE when running U320 */ 913 for (i = 0 ; i < 16; i++) { 914 sdev = scsi_device_lookup_by_target(starget, i); 915 if (sdev && sdev->type == TYPE_TAPE) { 916 sdev_printk(KERN_DEBUG, sdev, MYIOC_s_FMT 917 "IDP:ON\n", ioc->name); 918 nego_parms |= MPI_SCSIDEVPAGE1_RP_IDP; 919 pg1->RequestedParameters = 920 cpu_to_le32(nego_parms); 921 break; 922 } 923 } 924 } 925 926 mptspi_print_write_nego(hd, starget, le32_to_cpu(pg1->RequestedParameters)); 927 928 if (mpt_config(ioc, &cfg)) { 929 starget_printk(KERN_ERR, starget, MYIOC_s_FMT 930 "mpt_config failed\n", ioc->name); 931 goto out_free; 932 } 933 err = 0; 934 935 out_free: 936 dma_free_coherent(&ioc->pcidev->dev, size, pg1, pg1_dma); 937 return err; 938} 939 940static void mptspi_write_offset(struct scsi_target *starget, int offset) 941{ 942 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 943 u32 nego; 944 945 if (offset < 0) 946 offset = 0; 947 948 if (offset > 255) 949 offset = 255; 950 951 if (spi_offset(starget) == -1) 952 mptspi_read_parameters(starget); 953 954 spi_offset(starget) = offset; 955 956 nego = mptspi_getRP(starget); 957 958 pg1.RequestedParameters = cpu_to_le32(nego); 959 pg1.Reserved = 0; 960 pg1.Configuration = 0; 961 962 mptspi_write_spi_device_pg1(starget, &pg1); 963} 964 965static void mptspi_write_period(struct scsi_target *starget, int period) 966{ 967 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 968 u32 nego; 969 970 if (period < 8) 971 period = 8; 972 973 if (period > 255) 974 period = 255; 975 976 if (spi_period(starget) == -1) 977 mptspi_read_parameters(starget); 978 979 if (period == 8) { 980 spi_iu(starget) = 1; 981 spi_dt(starget) = 1; 982 } else if (period == 9) { 983 spi_dt(starget) = 1; 984 } 985 986 spi_period(starget) = period; 987 988 nego = mptspi_getRP(starget); 989 990 pg1.RequestedParameters = cpu_to_le32(nego); 991 pg1.Reserved = 0; 992 pg1.Configuration = 0; 993 994 mptspi_write_spi_device_pg1(starget, &pg1); 995} 996 997static void mptspi_write_dt(struct scsi_target *starget, int dt) 998{ 999 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 1000 u32 nego; 1001 1002 if (spi_period(starget) == -1) 1003 mptspi_read_parameters(starget); 1004 1005 if (!dt && spi_period(starget) < 10) 1006 spi_period(starget) = 10; 1007 1008 spi_dt(starget) = dt; 1009 1010 nego = mptspi_getRP(starget); 1011 1012 1013 pg1.RequestedParameters = cpu_to_le32(nego); 1014 pg1.Reserved = 0; 1015 pg1.Configuration = 0; 1016 1017 mptspi_write_spi_device_pg1(starget, &pg1); 1018} 1019 1020static void mptspi_write_iu(struct scsi_target *starget, int iu) 1021{ 1022 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 1023 u32 nego; 1024 1025 if (spi_period(starget) == -1) 1026 mptspi_read_parameters(starget); 1027 1028 if (!iu && spi_period(starget) < 9) 1029 spi_period(starget) = 9; 1030 1031 spi_iu(starget) = iu; 1032 1033 nego = mptspi_getRP(starget); 1034 1035 pg1.RequestedParameters = cpu_to_le32(nego); 1036 pg1.Reserved = 0; 1037 pg1.Configuration = 0; 1038 1039 mptspi_write_spi_device_pg1(starget, &pg1); 1040} 1041 1042#define MPTSPI_SIMPLE_TRANSPORT_PARM(parm) \ 1043static void mptspi_write_##parm(struct scsi_target *starget, int parm)\ 1044{ \ 1045 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; \ 1046 u32 nego; \ 1047 \ 1048 spi_##parm(starget) = parm; \ 1049 \ 1050 nego = mptspi_getRP(starget); \ 1051 \ 1052 pg1.RequestedParameters = cpu_to_le32(nego); \ 1053 pg1.Reserved = 0; \ 1054 pg1.Configuration = 0; \ 1055 \ 1056 mptspi_write_spi_device_pg1(starget, &pg1); \ 1057} 1058 1059MPTSPI_SIMPLE_TRANSPORT_PARM(rd_strm) 1060MPTSPI_SIMPLE_TRANSPORT_PARM(wr_flow) 1061MPTSPI_SIMPLE_TRANSPORT_PARM(rti) 1062MPTSPI_SIMPLE_TRANSPORT_PARM(hold_mcs) 1063MPTSPI_SIMPLE_TRANSPORT_PARM(pcomp_en) 1064 1065static void mptspi_write_qas(struct scsi_target *starget, int qas) 1066{ 1067 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 1068 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 1069 struct _MPT_SCSI_HOST *hd = shost_priv(shost); 1070 VirtTarget *vtarget = starget->hostdata; 1071 u32 nego; 1072 1073 if ((vtarget->negoFlags & MPT_TARGET_NO_NEGO_QAS) || 1074 hd->ioc->spi_data.noQas) 1075 spi_qas(starget) = 0; 1076 else 1077 spi_qas(starget) = qas; 1078 1079 nego = mptspi_getRP(starget); 1080 1081 pg1.RequestedParameters = cpu_to_le32(nego); 1082 pg1.Reserved = 0; 1083 pg1.Configuration = 0; 1084 1085 mptspi_write_spi_device_pg1(starget, &pg1); 1086} 1087 1088static void mptspi_write_width(struct scsi_target *starget, int width) 1089{ 1090 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 1091 u32 nego; 1092 1093 if (!width) { 1094 spi_dt(starget) = 0; 1095 if (spi_period(starget) < 10) 1096 spi_period(starget) = 10; 1097 } 1098 1099 spi_width(starget) = width; 1100 1101 nego = mptspi_getRP(starget); 1102 1103 pg1.RequestedParameters = cpu_to_le32(nego); 1104 pg1.Reserved = 0; 1105 pg1.Configuration = 0; 1106 1107 mptspi_write_spi_device_pg1(starget, &pg1); 1108} 1109 1110struct work_queue_wrapper { 1111 struct work_struct work; 1112 struct _MPT_SCSI_HOST *hd; 1113 int disk; 1114}; 1115 1116static void mpt_work_wrapper(struct work_struct *work) 1117{ 1118 struct work_queue_wrapper *wqw = 1119 container_of(work, struct work_queue_wrapper, work); 1120 struct _MPT_SCSI_HOST *hd = wqw->hd; 1121 MPT_ADAPTER *ioc = hd->ioc; 1122 struct Scsi_Host *shost = ioc->sh; 1123 struct scsi_device *sdev; 1124 int disk = wqw->disk; 1125 struct _CONFIG_PAGE_IOC_3 *pg3; 1126 1127 kfree(wqw); 1128 1129 mpt_findImVolumes(ioc); 1130 pg3 = ioc->raid_data.pIocPg3; 1131 if (!pg3) 1132 return; 1133 1134 shost_for_each_device(sdev,shost) { 1135 struct scsi_target *starget = scsi_target(sdev); 1136 VirtTarget *vtarget = starget->hostdata; 1137 1138 /* only want to search RAID components */ 1139 if (sdev->channel != 1) 1140 continue; 1141 1142 /* The id is the raid PhysDiskNum, even if 1143 * starget->id is the actual target address */ 1144 if(vtarget->id != disk) 1145 continue; 1146 1147 starget_printk(KERN_INFO, vtarget->starget, MYIOC_s_FMT 1148 "Integrated RAID requests DV of new device\n", ioc->name); 1149 mptspi_dv_device(hd, sdev); 1150 } 1151 shost_printk(KERN_INFO, shost, MYIOC_s_FMT 1152 "Integrated RAID detects new device %d\n", ioc->name, disk); 1153 scsi_scan_target(&ioc->sh->shost_gendev, 1, disk, 0, 1); 1154} 1155 1156 1157static void mpt_dv_raid(struct _MPT_SCSI_HOST *hd, int disk) 1158{ 1159 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC); 1160 MPT_ADAPTER *ioc = hd->ioc; 1161 1162 if (!wqw) { 1163 shost_printk(KERN_ERR, ioc->sh, MYIOC_s_FMT 1164 "Failed to act on RAID event for physical disk %d\n", 1165 ioc->name, disk); 1166 return; 1167 } 1168 INIT_WORK(&wqw->work, mpt_work_wrapper); 1169 wqw->hd = hd; 1170 wqw->disk = disk; 1171 1172 schedule_work(&wqw->work); 1173} 1174 1175static int 1176mptspi_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 1177{ 1178 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 1179 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh); 1180 1181 if (ioc->bus_type != SPI) 1182 return 0; 1183 1184 if (hd && event == MPI_EVENT_INTEGRATED_RAID) { 1185 int reason 1186 = (le32_to_cpu(pEvReply->Data[0]) & 0x00FF0000) >> 16; 1187 1188 if (reason == MPI_EVENT_RAID_RC_DOMAIN_VAL_NEEDED) { 1189 int disk = (le32_to_cpu(pEvReply->Data[0]) & 0xFF000000) >> 24; 1190 mpt_dv_raid(hd, disk); 1191 } 1192 } 1193 return mptscsih_event_process(ioc, pEvReply); 1194} 1195 1196static int 1197mptspi_deny_binding(struct scsi_target *starget) 1198{ 1199 struct _MPT_SCSI_HOST *hd = 1200 (struct _MPT_SCSI_HOST *)dev_to_shost(starget->dev.parent)->hostdata; 1201 return ((mptspi_is_raid(hd, starget->id)) && 1202 starget->channel == 0) ? 1 : 0; 1203} 1204 1205static struct spi_function_template mptspi_transport_functions = { 1206 .get_offset = mptspi_read_parameters, 1207 .set_offset = mptspi_write_offset, 1208 .show_offset = 1, 1209 .get_period = mptspi_read_parameters, 1210 .set_period = mptspi_write_period, 1211 .show_period = 1, 1212 .get_width = mptspi_read_parameters, 1213 .set_width = mptspi_write_width, 1214 .show_width = 1, 1215 .get_iu = mptspi_read_parameters, 1216 .set_iu = mptspi_write_iu, 1217 .show_iu = 1, 1218 .get_dt = mptspi_read_parameters, 1219 .set_dt = mptspi_write_dt, 1220 .show_dt = 1, 1221 .get_qas = mptspi_read_parameters, 1222 .set_qas = mptspi_write_qas, 1223 .show_qas = 1, 1224 .get_wr_flow = mptspi_read_parameters, 1225 .set_wr_flow = mptspi_write_wr_flow, 1226 .show_wr_flow = 1, 1227 .get_rd_strm = mptspi_read_parameters, 1228 .set_rd_strm = mptspi_write_rd_strm, 1229 .show_rd_strm = 1, 1230 .get_rti = mptspi_read_parameters, 1231 .set_rti = mptspi_write_rti, 1232 .show_rti = 1, 1233 .get_pcomp_en = mptspi_read_parameters, 1234 .set_pcomp_en = mptspi_write_pcomp_en, 1235 .show_pcomp_en = 1, 1236 .get_hold_mcs = mptspi_read_parameters, 1237 .set_hold_mcs = mptspi_write_hold_mcs, 1238 .show_hold_mcs = 1, 1239 .deny_binding = mptspi_deny_binding, 1240}; 1241 1242/**************************************************************************** 1243 * Supported hardware 1244 */ 1245 1246static struct pci_device_id mptspi_pci_table[] = { 1247 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030, 1248 PCI_ANY_ID, PCI_ANY_ID }, 1249 { PCI_VENDOR_ID_ATTO, MPI_MANUFACTPAGE_DEVID_53C1030, 1250 PCI_ANY_ID, PCI_ANY_ID }, 1251 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1035, 1252 PCI_ANY_ID, PCI_ANY_ID }, 1253 {0} /* Terminating entry */ 1254}; 1255MODULE_DEVICE_TABLE(pci, mptspi_pci_table); 1256 1257 1258/* 1259 * renegotiate for a given target 1260 */ 1261static void 1262mptspi_dv_renegotiate_work(struct work_struct *work) 1263{ 1264 struct work_queue_wrapper *wqw = 1265 container_of(work, struct work_queue_wrapper, work); 1266 struct _MPT_SCSI_HOST *hd = wqw->hd; 1267 struct scsi_device *sdev; 1268 struct scsi_target *starget; 1269 struct _CONFIG_PAGE_SCSI_DEVICE_1 pg1; 1270 u32 nego; 1271 MPT_ADAPTER *ioc = hd->ioc; 1272 1273 kfree(wqw); 1274 1275 if (hd->spi_pending) { 1276 shost_for_each_device(sdev, ioc->sh) { 1277 if (hd->spi_pending & (1 << sdev->id)) 1278 continue; 1279 starget = scsi_target(sdev); 1280 nego = mptspi_getRP(starget); 1281 pg1.RequestedParameters = cpu_to_le32(nego); 1282 pg1.Reserved = 0; 1283 pg1.Configuration = 0; 1284 mptspi_write_spi_device_pg1(starget, &pg1); 1285 } 1286 } else { 1287 shost_for_each_device(sdev, ioc->sh) 1288 mptspi_dv_device(hd, sdev); 1289 } 1290} 1291 1292static void 1293mptspi_dv_renegotiate(struct _MPT_SCSI_HOST *hd) 1294{ 1295 struct work_queue_wrapper *wqw = kmalloc(sizeof(*wqw), GFP_ATOMIC); 1296 1297 if (!wqw) 1298 return; 1299 1300 INIT_WORK(&wqw->work, mptspi_dv_renegotiate_work); 1301 wqw->hd = hd; 1302 1303 schedule_work(&wqw->work); 1304} 1305 1306/* 1307 * spi module reset handler 1308 */ 1309static int 1310mptspi_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 1311{ 1312 int rc; 1313 1314 rc = mptscsih_ioc_reset(ioc, reset_phase); 1315 if ((ioc->bus_type != SPI) || (!rc)) 1316 return rc; 1317 1318 /* only try to do a renegotiation if we're properly set up 1319 * if we get an ioc fault on bringup, ioc->sh will be NULL */ 1320 if (reset_phase == MPT_IOC_POST_RESET && 1321 ioc->sh) { 1322 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh); 1323 1324 mptspi_dv_renegotiate(hd); 1325 } 1326 1327 return rc; 1328} 1329 1330#ifdef CONFIG_PM 1331/* 1332 * spi module resume handler 1333 */ 1334static int 1335mptspi_resume(struct pci_dev *pdev) 1336{ 1337 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1338 struct _MPT_SCSI_HOST *hd = shost_priv(ioc->sh); 1339 int rc; 1340 1341 rc = mptscsih_resume(pdev); 1342 mptspi_dv_renegotiate(hd); 1343 1344 return rc; 1345} 1346#endif 1347 1348/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1349/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1350/* 1351 * mptspi_probe - Installs scsi devices per bus. 1352 * @pdev: Pointer to pci_dev structure 1353 * 1354 * Returns 0 for success, non-zero for failure. 1355 * 1356 */ 1357static int 1358mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1359{ 1360 struct Scsi_Host *sh; 1361 MPT_SCSI_HOST *hd; 1362 MPT_ADAPTER *ioc; 1363 unsigned long flags; 1364 int ii; 1365 int numSGE = 0; 1366 int scale; 1367 int ioc_cap; 1368 int error=0; 1369 int r; 1370 1371 if ((r = mpt_attach(pdev,id)) != 0) 1372 return r; 1373 1374 ioc = pci_get_drvdata(pdev); 1375 ioc->DoneCtx = mptspiDoneCtx; 1376 ioc->TaskCtx = mptspiTaskCtx; 1377 ioc->InternalCtx = mptspiInternalCtx; 1378 1379 /* Added sanity check on readiness of the MPT adapter. 1380 */ 1381 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 1382 printk(MYIOC_s_WARN_FMT 1383 "Skipping because it's not operational!\n", 1384 ioc->name); 1385 error = -ENODEV; 1386 goto out_mptspi_probe; 1387 } 1388 1389 if (!ioc->active) { 1390 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 1391 ioc->name); 1392 error = -ENODEV; 1393 goto out_mptspi_probe; 1394 } 1395 1396 /* Sanity check - ensure at least 1 port is INITIATOR capable 1397 */ 1398 ioc_cap = 0; 1399 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1400 if (ioc->pfacts[ii].ProtocolFlags & 1401 MPI_PORTFACTS_PROTOCOL_INITIATOR) 1402 ioc_cap ++; 1403 } 1404 1405 if (!ioc_cap) { 1406 printk(MYIOC_s_WARN_FMT 1407 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", 1408 ioc->name, ioc); 1409 return 0; 1410 } 1411 1412 sh = scsi_host_alloc(&mptspi_driver_template, sizeof(MPT_SCSI_HOST)); 1413 1414 if (!sh) { 1415 printk(MYIOC_s_WARN_FMT 1416 "Unable to register controller with SCSI subsystem\n", 1417 ioc->name); 1418 error = -1; 1419 goto out_mptspi_probe; 1420 } 1421 1422 /* VMWare emulation doesn't properly implement WRITE_SAME 1423 */ 1424 if (pdev->subsystem_vendor == 0x15AD) 1425 sh->no_write_same = 1; 1426 1427 spin_lock_irqsave(&ioc->FreeQlock, flags); 1428 1429 /* Attach the SCSI Host to the IOC structure 1430 */ 1431 ioc->sh = sh; 1432 1433 sh->io_port = 0; 1434 sh->n_io_port = 0; 1435 sh->irq = 0; 1436 1437 /* set 16 byte cdb's */ 1438 sh->max_cmd_len = 16; 1439 1440 /* Yikes! This is important! 1441 * Otherwise, by default, linux 1442 * only scans target IDs 0-7! 1443 * pfactsN->MaxDevices unreliable 1444 * (not supported in early 1445 * versions of the FW). 1446 * max_id = 1 + actual max id, 1447 * max_lun = 1 + actual last lun, 1448 * see hosts.h :o( 1449 */ 1450 sh->max_id = ioc->devices_per_bus; 1451 1452 sh->max_lun = MPT_LAST_LUN + 1; 1453 /* 1454 * If RAID Firmware Detected, setup virtual channel 1455 */ 1456 if (ioc->ir_firmware) 1457 sh->max_channel = 1; 1458 else 1459 sh->max_channel = 0; 1460 sh->this_id = ioc->pfacts[0].PortSCSIID; 1461 1462 /* Required entry. 1463 */ 1464 sh->unique_id = ioc->id; 1465 1466 /* Verify that we won't exceed the maximum 1467 * number of chain buffers 1468 * We can optimize: ZZ = req_sz/sizeof(SGE) 1469 * For 32bit SGE's: 1470 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 1471 * + (req_sz - 64)/sizeof(SGE) 1472 * A slightly different algorithm is required for 1473 * 64bit SGEs. 1474 */ 1475 scale = ioc->req_sz/ioc->SGE_size; 1476 if (ioc->sg_addr_size == sizeof(u64)) { 1477 numSGE = (scale - 1) * 1478 (ioc->facts.MaxChainDepth-1) + scale + 1479 (ioc->req_sz - 60) / ioc->SGE_size; 1480 } else { 1481 numSGE = 1 + (scale - 1) * 1482 (ioc->facts.MaxChainDepth-1) + scale + 1483 (ioc->req_sz - 64) / ioc->SGE_size; 1484 } 1485 1486 if (numSGE < sh->sg_tablesize) { 1487 /* Reset this value */ 1488 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1489 "Resetting sg_tablesize to %d from %d\n", 1490 ioc->name, numSGE, sh->sg_tablesize)); 1491 sh->sg_tablesize = numSGE; 1492 } 1493 1494 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1495 1496 hd = shost_priv(sh); 1497 hd->ioc = ioc; 1498 1499 /* SCSI needs scsi_cmnd lookup table! 1500 * (with size equal to req_depth*PtrSz!) 1501 */ 1502 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); 1503 if (!ioc->ScsiLookup) { 1504 error = -ENOMEM; 1505 goto out_mptspi_probe; 1506 } 1507 spin_lock_init(&ioc->scsi_lookup_lock); 1508 1509 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n", 1510 ioc->name, ioc->ScsiLookup)); 1511 1512 ioc->spi_data.Saf_Te = mpt_saf_te; 1513 ddvprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1514 "saf_te %x\n", 1515 ioc->name, 1516 mpt_saf_te)); 1517 ioc->spi_data.noQas = 0; 1518 1519 hd->last_queue_full = 0; 1520 hd->spi_pending = 0; 1521 1522 /* Some versions of the firmware don't support page 0; without 1523 * that we can't get the parameters */ 1524 if (ioc->spi_data.sdp0length != 0) 1525 sh->transportt = mptspi_transport_template; 1526 1527 error = scsi_add_host (sh, &ioc->pcidev->dev); 1528 if(error) { 1529 dprintk(ioc, printk(MYIOC_s_ERR_FMT 1530 "scsi_add_host failed\n", ioc->name)); 1531 goto out_mptspi_probe; 1532 } 1533 1534 /* 1535 * issue internal bus reset 1536 */ 1537 if (ioc->spi_data.bus_reset) 1538 mptscsih_IssueTaskMgmt(hd, 1539 MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS, 1540 0, 0, 0, 0, 5); 1541 1542 scsi_scan_host(sh); 1543 return 0; 1544 1545out_mptspi_probe: 1546 1547 mptscsih_remove(pdev); 1548 return error; 1549} 1550 1551static struct pci_driver mptspi_driver = { 1552 .name = "mptspi", 1553 .id_table = mptspi_pci_table, 1554 .probe = mptspi_probe, 1555 .remove = mptscsih_remove, 1556 .shutdown = mptscsih_shutdown, 1557#ifdef CONFIG_PM 1558 .suspend = mptscsih_suspend, 1559 .resume = mptspi_resume, 1560#endif 1561}; 1562 1563/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1564/** 1565 * mptspi_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer. 1566 * 1567 * Returns 0 for success, non-zero for failure. 1568 */ 1569static int __init 1570mptspi_init(void) 1571{ 1572 int error; 1573 1574 show_mptmod_ver(my_NAME, my_VERSION); 1575 1576 mptspi_transport_template = spi_attach_transport(&mptspi_transport_functions); 1577 if (!mptspi_transport_template) 1578 return -ENODEV; 1579 1580 mptspiDoneCtx = mpt_register(mptscsih_io_done, MPTSPI_DRIVER, 1581 "mptscsih_io_done"); 1582 mptspiTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTSPI_DRIVER, 1583 "mptscsih_taskmgmt_complete"); 1584 mptspiInternalCtx = mpt_register(mptscsih_scandv_complete, 1585 MPTSPI_DRIVER, "mptscsih_scandv_complete"); 1586 1587 mpt_event_register(mptspiDoneCtx, mptspi_event_process); 1588 mpt_reset_register(mptspiDoneCtx, mptspi_ioc_reset); 1589 1590 error = pci_register_driver(&mptspi_driver); 1591 if (error) 1592 spi_release_transport(mptspi_transport_template); 1593 1594 return error; 1595} 1596 1597/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1598/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1599/** 1600 * mptspi_exit - Unregisters MPT adapter(s) 1601 */ 1602static void __exit 1603mptspi_exit(void) 1604{ 1605 pci_unregister_driver(&mptspi_driver); 1606 1607 mpt_reset_deregister(mptspiDoneCtx); 1608 mpt_event_deregister(mptspiDoneCtx); 1609 1610 mpt_deregister(mptspiInternalCtx); 1611 mpt_deregister(mptspiTaskCtx); 1612 mpt_deregister(mptspiDoneCtx); 1613 spi_release_transport(mptspi_transport_template); 1614} 1615 1616module_init(mptspi_init); 1617module_exit(mptspi_exit); 1618