1 /* 2 * linux/drivers/message/fusion/mptfc.c 3 * For use with LSI Logic PCI chip/adapter(s) 4 * running LSI Logic Fusion MPT (Message Passing Technology) firmware. 5 * 6 * Copyright (c) 1999-2005 LSI Logic Corporation 7 * (mailto:mpt_linux_developer@lsil.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 #include "linux_compat.h" /* linux-2.6 tweaks */ 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/sched.h> 57 #include <linux/workqueue.h> 58 #include <linux/sort.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_fc.h> 66 67 #include "mptbase.h" 68 #include "mptscsih.h" 69 70 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 71 #define my_NAME "Fusion MPT FC Host driver" 72 #define my_VERSION MPT_LINUX_VERSION_COMMON 73 #define MYNAM "mptfc" 74 75 MODULE_AUTHOR(MODULEAUTHOR); 76 MODULE_DESCRIPTION(my_NAME); 77 MODULE_LICENSE("GPL"); 78 79 /* Command line args */ 80 static int mpt_pq_filter = 0; 81 module_param(mpt_pq_filter, int, 0); 82 MODULE_PARM_DESC(mpt_pq_filter, " Enable peripheral qualifier filter: enable=1 (default=0)"); 83 84 #define MPTFC_DEV_LOSS_TMO (60) 85 static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */ 86 module_param(mptfc_dev_loss_tmo, int, 0); 87 MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the " 88 " transport to wait for an rport to " 89 " return following a device loss event." 90 " Default=60."); 91 92 static int mptfcDoneCtx = -1; 93 static int mptfcTaskCtx = -1; 94 static int mptfcInternalCtx = -1; /* Used only for internal commands */ 95 96 static int mptfc_target_alloc(struct scsi_target *starget); 97 static int mptfc_slave_alloc(struct scsi_device *sdev); 98 static int mptfc_qcmd(struct scsi_cmnd *SCpnt, 99 void (*done)(struct scsi_cmnd *)); 100 static void mptfc_target_destroy(struct scsi_target *starget); 101 static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout); 102 static void __devexit mptfc_remove(struct pci_dev *pdev); 103 104 static struct scsi_host_template mptfc_driver_template = { 105 .module = THIS_MODULE, 106 .proc_name = "mptfc", 107 .proc_info = mptscsih_proc_info, 108 .name = "MPT FC Host", 109 .info = mptscsih_info, 110 .queuecommand = mptfc_qcmd, 111 .target_alloc = mptfc_target_alloc, 112 .slave_alloc = mptfc_slave_alloc, 113 .slave_configure = mptscsih_slave_configure, 114 .target_destroy = mptfc_target_destroy, 115 .slave_destroy = mptscsih_slave_destroy, 116 .change_queue_depth = mptscsih_change_queue_depth, 117 .eh_abort_handler = mptscsih_abort, 118 .eh_device_reset_handler = mptscsih_dev_reset, 119 .eh_bus_reset_handler = mptscsih_bus_reset, 120 .eh_host_reset_handler = mptscsih_host_reset, 121 .bios_param = mptscsih_bios_param, 122 .can_queue = MPT_FC_CAN_QUEUE, 123 .this_id = -1, 124 .sg_tablesize = MPT_SCSI_SG_DEPTH, 125 .max_sectors = 8192, 126 .cmd_per_lun = 7, 127 .use_clustering = ENABLE_CLUSTERING, 128 }; 129 130 /**************************************************************************** 131 * Supported hardware 132 */ 133 134 static struct pci_device_id mptfc_pci_table[] = { 135 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC909, 136 PCI_ANY_ID, PCI_ANY_ID }, 137 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919, 138 PCI_ANY_ID, PCI_ANY_ID }, 139 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929, 140 PCI_ANY_ID, PCI_ANY_ID }, 141 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919X, 142 PCI_ANY_ID, PCI_ANY_ID }, 143 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929X, 144 PCI_ANY_ID, PCI_ANY_ID }, 145 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC939X, 146 PCI_ANY_ID, PCI_ANY_ID }, 147 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949X, 148 PCI_ANY_ID, PCI_ANY_ID }, 149 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949ES, 150 PCI_ANY_ID, PCI_ANY_ID }, 151 {0} /* Terminating entry */ 152 }; 153 MODULE_DEVICE_TABLE(pci, mptfc_pci_table); 154 155 static struct scsi_transport_template *mptfc_transport_template = NULL; 156 157 static struct fc_function_template mptfc_transport_functions = { 158 .dd_fcrport_size = 8, 159 .show_host_node_name = 1, 160 .show_host_port_name = 1, 161 .show_host_supported_classes = 1, 162 .show_host_port_id = 1, 163 .show_rport_supported_classes = 1, 164 .show_starget_node_name = 1, 165 .show_starget_port_name = 1, 166 .show_starget_port_id = 1, 167 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo, 168 .show_rport_dev_loss_tmo = 1, 169 170 }; 171 172 static void 173 mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 174 { 175 if (timeout > 0) 176 rport->dev_loss_tmo = timeout; 177 else 178 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 179 } 180 181 static int 182 mptfc_FcDevPage0_cmp_func(const void *a, const void *b) 183 { 184 FCDevicePage0_t **aa = (FCDevicePage0_t **)a; 185 FCDevicePage0_t **bb = (FCDevicePage0_t **)b; 186 187 if ((*aa)->CurrentBus == (*bb)->CurrentBus) { 188 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID) 189 return 0; 190 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID) 191 return -1; 192 return 1; 193 } 194 if ((*aa)->CurrentBus < (*bb)->CurrentBus) 195 return -1; 196 return 1; 197 } 198 199 static int 200 mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port, 201 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg)) 202 { 203 ConfigPageHeader_t hdr; 204 CONFIGPARMS cfg; 205 FCDevicePage0_t *ppage0_alloc, *fc; 206 dma_addr_t page0_dma; 207 int data_sz; 208 int ii; 209 210 FCDevicePage0_t *p0_array=NULL, *p_p0; 211 FCDevicePage0_t **pp0_array=NULL, **p_pp0; 212 213 int rc = -ENOMEM; 214 U32 port_id = 0xffffff; 215 int num_targ = 0; 216 int max_bus = ioc->facts.MaxBuses; 217 int max_targ = ioc->facts.MaxDevices; 218 219 if (max_bus == 0 || max_targ == 0) 220 goto out; 221 222 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ; 223 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL); 224 if (!p0_array) 225 goto out; 226 227 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ; 228 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL); 229 if (!pp0_array) 230 goto out; 231 232 do { 233 /* Get FC Device Page 0 header */ 234 hdr.PageVersion = 0; 235 hdr.PageLength = 0; 236 hdr.PageNumber = 0; 237 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE; 238 cfg.cfghdr.hdr = &hdr; 239 cfg.physAddr = -1; 240 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 241 cfg.dir = 0; 242 cfg.pageAddr = port_id; 243 cfg.timeout = 0; 244 245 if ((rc = mpt_config(ioc, &cfg)) != 0) 246 break; 247 248 if (hdr.PageLength <= 0) 249 break; 250 251 data_sz = hdr.PageLength * 4; 252 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, 253 &page0_dma); 254 rc = -ENOMEM; 255 if (!ppage0_alloc) 256 break; 257 258 cfg.physAddr = page0_dma; 259 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 260 261 if ((rc = mpt_config(ioc, &cfg)) == 0) { 262 ppage0_alloc->PortIdentifier = 263 le32_to_cpu(ppage0_alloc->PortIdentifier); 264 265 ppage0_alloc->WWNN.Low = 266 le32_to_cpu(ppage0_alloc->WWNN.Low); 267 268 ppage0_alloc->WWNN.High = 269 le32_to_cpu(ppage0_alloc->WWNN.High); 270 271 ppage0_alloc->WWPN.Low = 272 le32_to_cpu(ppage0_alloc->WWPN.Low); 273 274 ppage0_alloc->WWPN.High = 275 le32_to_cpu(ppage0_alloc->WWPN.High); 276 277 ppage0_alloc->BBCredit = 278 le16_to_cpu(ppage0_alloc->BBCredit); 279 280 ppage0_alloc->MaxRxFrameSize = 281 le16_to_cpu(ppage0_alloc->MaxRxFrameSize); 282 283 port_id = ppage0_alloc->PortIdentifier; 284 num_targ++; 285 *p_p0 = *ppage0_alloc; /* save data */ 286 *p_pp0++ = p_p0++; /* save addr */ 287 } 288 pci_free_consistent(ioc->pcidev, data_sz, 289 (u8 *) ppage0_alloc, page0_dma); 290 if (rc != 0) 291 break; 292 293 } while (port_id <= 0xff0000); 294 295 if (num_targ) { 296 /* sort array */ 297 if (num_targ > 1) 298 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *), 299 mptfc_FcDevPage0_cmp_func, NULL); 300 /* call caller's func for each targ */ 301 for (ii = 0; ii < num_targ; ii++) { 302 fc = *(pp0_array+ii); 303 func(ioc, ioc_port, fc); 304 } 305 } 306 307 out: 308 kfree(pp0_array); 309 kfree(p0_array); 310 return rc; 311 } 312 313 static int 314 mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid) 315 { 316 /* not currently usable */ 317 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID | 318 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID)) 319 return -1; 320 321 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID)) 322 return -1; 323 324 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET)) 325 return -1; 326 327 /* 328 * board data structure already normalized to platform endianness 329 * shifted to avoid unaligned access on 64 bit architecture 330 */ 331 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low; 332 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low; 333 rid->port_id = pg0->PortIdentifier; 334 rid->roles = FC_RPORT_ROLE_UNKNOWN; 335 336 return 0; 337 } 338 339 static void 340 mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0) 341 { 342 struct fc_rport_identifiers rport_ids; 343 struct fc_rport *rport; 344 struct mptfc_rport_info *ri; 345 int new_ri = 1; 346 u64 pn, nn; 347 VirtTarget *vtarget; 348 u32 roles = FC_RPORT_ROLE_UNKNOWN; 349 350 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0) 351 return; 352 353 roles |= FC_RPORT_ROLE_FCP_TARGET; 354 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR) 355 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 356 357 /* scan list looking for a match */ 358 list_for_each_entry(ri, &ioc->fc_rports, list) { 359 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 360 if (pn == rport_ids.port_name) { /* match */ 361 list_move_tail(&ri->list, &ioc->fc_rports); 362 new_ri = 0; 363 break; 364 } 365 } 366 if (new_ri) { /* allocate one */ 367 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL); 368 if (!ri) 369 return; 370 list_add_tail(&ri->list, &ioc->fc_rports); 371 } 372 373 ri->pg0 = *pg0; /* add/update pg0 data */ 374 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING; 375 376 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */ 377 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) { 378 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED; 379 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids); 380 if (rport) { 381 ri->rport = rport; 382 if (new_ri) /* may have been reset by user */ 383 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 384 /* 385 * if already mapped, remap here. If not mapped, 386 * target_alloc will allocate vtarget and map, 387 * slave_alloc will fill in vdev from vtarget. 388 */ 389 if (ri->starget) { 390 vtarget = ri->starget->hostdata; 391 if (vtarget) { 392 vtarget->target_id = pg0->CurrentTargetID; 393 vtarget->bus_id = pg0->CurrentBus; 394 } 395 } 396 *((struct mptfc_rport_info **)rport->dd_data) = ri; 397 /* scan will be scheduled once rport becomes a target */ 398 fc_remote_port_rolechg(rport,roles); 399 400 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 401 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 402 dfcprintk ((MYIOC_s_INFO_FMT 403 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, " 404 "rport tid %d, tmo %d\n", 405 ioc->name, 406 ioc->sh->host_no, 407 pg0->PortIdentifier, 408 (unsigned long long)nn, 409 (unsigned long long)pn, 410 pg0->CurrentTargetID, 411 ri->rport->scsi_target_id, 412 ri->rport->dev_loss_tmo)); 413 } else { 414 list_del(&ri->list); 415 kfree(ri); 416 ri = NULL; 417 } 418 } 419 } 420 421 /* 422 * OS entry point to allow for host driver to free allocated memory 423 * Called if no device present or device being unloaded 424 */ 425 static void 426 mptfc_target_destroy(struct scsi_target *starget) 427 { 428 struct fc_rport *rport; 429 struct mptfc_rport_info *ri; 430 431 rport = starget_to_rport(starget); 432 if (rport) { 433 ri = *((struct mptfc_rport_info **)rport->dd_data); 434 if (ri) /* better be! */ 435 ri->starget = NULL; 436 } 437 if (starget->hostdata) 438 kfree(starget->hostdata); 439 starget->hostdata = NULL; 440 } 441 442 /* 443 * OS entry point to allow host driver to alloc memory 444 * for each scsi target. Called once per device the bus scan. 445 * Return non-zero if allocation fails. 446 */ 447 static int 448 mptfc_target_alloc(struct scsi_target *starget) 449 { 450 VirtTarget *vtarget; 451 struct fc_rport *rport; 452 struct mptfc_rport_info *ri; 453 int rc; 454 455 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); 456 if (!vtarget) 457 return -ENOMEM; 458 starget->hostdata = vtarget; 459 460 rc = -ENODEV; 461 rport = starget_to_rport(starget); 462 if (rport) { 463 ri = *((struct mptfc_rport_info **)rport->dd_data); 464 if (ri) { /* better be! */ 465 vtarget->target_id = ri->pg0.CurrentTargetID; 466 vtarget->bus_id = ri->pg0.CurrentBus; 467 ri->starget = starget; 468 rc = 0; 469 } 470 } 471 if (rc != 0) { 472 kfree(vtarget); 473 starget->hostdata = NULL; 474 } 475 476 return rc; 477 } 478 479 /* 480 * OS entry point to allow host driver to alloc memory 481 * for each scsi device. Called once per device the bus scan. 482 * Return non-zero if allocation fails. 483 * Init memory once per LUN. 484 */ 485 static int 486 mptfc_slave_alloc(struct scsi_device *sdev) 487 { 488 MPT_SCSI_HOST *hd; 489 VirtTarget *vtarget; 490 VirtDevice *vdev; 491 struct scsi_target *starget; 492 struct fc_rport *rport; 493 494 495 starget = scsi_target(sdev); 496 rport = starget_to_rport(starget); 497 498 if (!rport || fc_remote_port_chkready(rport)) 499 return -ENXIO; 500 501 hd = (MPT_SCSI_HOST *)sdev->host->hostdata; 502 503 vdev = kzalloc(sizeof(VirtDevice), GFP_KERNEL); 504 if (!vdev) { 505 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", 506 hd->ioc->name, sizeof(VirtDevice)); 507 return -ENOMEM; 508 } 509 510 511 sdev->hostdata = vdev; 512 vtarget = starget->hostdata; 513 514 if (vtarget->num_luns == 0) { 515 vtarget->ioc_id = hd->ioc->id; 516 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES | 517 MPT_TARGET_FLAGS_VALID_INQUIRY; 518 hd->Targets[sdev->id] = vtarget; 519 } 520 521 vdev->vtarget = vtarget; 522 vdev->lun = sdev->lun; 523 524 vtarget->num_luns++; 525 526 527 #ifdef DMPT_DEBUG_FC 528 { 529 u64 nn, pn; 530 struct mptfc_rport_info *ri; 531 ri = *((struct mptfc_rport_info **)rport->dd_data); 532 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 533 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 534 dfcprintk ((MYIOC_s_INFO_FMT 535 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, " 536 "CurrentTargetID %d, %x %llx %llx\n", 537 hd->ioc->name, 538 sdev->host->host_no, 539 vtarget->num_luns, 540 sdev->id, ri->pg0.CurrentTargetID, 541 ri->pg0.PortIdentifier, 542 (unsigned long long)pn, 543 (unsigned long long)nn)); 544 } 545 #endif 546 547 return 0; 548 } 549 550 static int 551 mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) 552 { 553 struct mptfc_rport_info *ri; 554 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); 555 int err; 556 557 err = fc_remote_port_chkready(rport); 558 if (unlikely(err)) { 559 SCpnt->result = err; 560 done(SCpnt); 561 return 0; 562 } 563 564 /* dd_data is null until finished adding target */ 565 ri = *((struct mptfc_rport_info **)rport->dd_data); 566 if (unlikely(!ri)) { 567 dfcprintk ((MYIOC_s_INFO_FMT 568 "mptfc_qcmd.%d: %d:%d, dd_data is null.\n", 569 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name, 570 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no, 571 SCpnt->device->id,SCpnt->device->lun)); 572 SCpnt->result = DID_IMM_RETRY << 16; 573 done(SCpnt); 574 return 0; 575 } 576 577 err = mptscsih_qcmd(SCpnt,done); 578 #ifdef DMPT_DEBUG_FC 579 if (unlikely(err)) { 580 dfcprintk ((MYIOC_s_INFO_FMT 581 "mptfc_qcmd.%d: %d:%d, mptscsih_qcmd returns non-zero, (%x).\n", 582 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name, 583 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no, 584 SCpnt->device->id,SCpnt->device->lun,err)); 585 } 586 #endif 587 return err; 588 } 589 590 /* 591 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0. 592 * @ioc: Pointer to MPT_ADAPTER structure 593 * @portnum: IOC Port number 594 * 595 * Return: 0 for success 596 * -ENOMEM if no memory available 597 * -EPERM if not allowed due to ISR context 598 * -EAGAIN if no msg frames currently available 599 * -EFAULT for non-successful reply or no reply (timeout) 600 * -EINVAL portnum arg out of range (hardwired to two elements) 601 */ 602 static int 603 mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) 604 { 605 ConfigPageHeader_t hdr; 606 CONFIGPARMS cfg; 607 FCPortPage0_t *ppage0_alloc; 608 FCPortPage0_t *pp0dest; 609 dma_addr_t page0_dma; 610 int data_sz; 611 int copy_sz; 612 int rc; 613 int count = 400; 614 615 if (portnum > 1) 616 return -EINVAL; 617 618 /* Get FCPort Page 0 header */ 619 hdr.PageVersion = 0; 620 hdr.PageLength = 0; 621 hdr.PageNumber = 0; 622 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 623 cfg.cfghdr.hdr = &hdr; 624 cfg.physAddr = -1; 625 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 626 cfg.dir = 0; 627 cfg.pageAddr = portnum; 628 cfg.timeout = 0; 629 630 if ((rc = mpt_config(ioc, &cfg)) != 0) 631 return rc; 632 633 if (hdr.PageLength == 0) 634 return 0; 635 636 data_sz = hdr.PageLength * 4; 637 rc = -ENOMEM; 638 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma); 639 if (ppage0_alloc) { 640 641 try_again: 642 memset((u8 *)ppage0_alloc, 0, data_sz); 643 cfg.physAddr = page0_dma; 644 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 645 646 if ((rc = mpt_config(ioc, &cfg)) == 0) { 647 /* save the data */ 648 pp0dest = &ioc->fc_port_page0[portnum]; 649 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz); 650 memcpy(pp0dest, ppage0_alloc, copy_sz); 651 652 /* 653 * Normalize endianness of structure data, 654 * by byte-swapping all > 1 byte fields! 655 */ 656 pp0dest->Flags = le32_to_cpu(pp0dest->Flags); 657 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier); 658 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low); 659 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High); 660 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low); 661 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High); 662 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass); 663 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds); 664 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed); 665 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize); 666 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low); 667 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High); 668 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low); 669 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High); 670 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount); 671 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators); 672 673 /* 674 * if still doing discovery, 675 * hang loose a while until finished 676 */ 677 if (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) { 678 if (count-- > 0) { 679 msleep(100); 680 goto try_again; 681 } 682 printk(MYIOC_s_INFO_FMT "Firmware discovery not" 683 " complete.\n", 684 ioc->name); 685 } 686 } 687 688 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma); 689 } 690 691 return rc; 692 } 693 694 static int 695 mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum) 696 { 697 ConfigPageHeader_t hdr; 698 CONFIGPARMS cfg; 699 int rc; 700 701 if (portnum > 1) 702 return -EINVAL; 703 704 if (!(ioc->fc_data.fc_port_page1[portnum].data)) 705 return -EINVAL; 706 707 /* get fcport page 1 header */ 708 hdr.PageVersion = 0; 709 hdr.PageLength = 0; 710 hdr.PageNumber = 1; 711 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 712 cfg.cfghdr.hdr = &hdr; 713 cfg.physAddr = -1; 714 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 715 cfg.dir = 0; 716 cfg.pageAddr = portnum; 717 cfg.timeout = 0; 718 719 if ((rc = mpt_config(ioc, &cfg)) != 0) 720 return rc; 721 722 if (hdr.PageLength == 0) 723 return -ENODEV; 724 725 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz) 726 return -EINVAL; 727 728 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma; 729 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 730 cfg.dir = 1; 731 732 rc = mpt_config(ioc, &cfg); 733 734 return rc; 735 } 736 737 static int 738 mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum) 739 { 740 ConfigPageHeader_t hdr; 741 CONFIGPARMS cfg; 742 FCPortPage1_t *page1_alloc; 743 dma_addr_t page1_dma; 744 int data_sz; 745 int rc; 746 747 if (portnum > 1) 748 return -EINVAL; 749 750 /* get fcport page 1 header */ 751 hdr.PageVersion = 0; 752 hdr.PageLength = 0; 753 hdr.PageNumber = 1; 754 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 755 cfg.cfghdr.hdr = &hdr; 756 cfg.physAddr = -1; 757 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 758 cfg.dir = 0; 759 cfg.pageAddr = portnum; 760 cfg.timeout = 0; 761 762 if ((rc = mpt_config(ioc, &cfg)) != 0) 763 return rc; 764 765 if (hdr.PageLength == 0) 766 return -ENODEV; 767 768 start_over: 769 770 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) { 771 data_sz = hdr.PageLength * 4; 772 if (data_sz < sizeof(FCPortPage1_t)) 773 data_sz = sizeof(FCPortPage1_t); 774 775 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev, 776 data_sz, 777 &page1_dma); 778 if (!page1_alloc) 779 return -ENOMEM; 780 } 781 else { 782 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data; 783 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma; 784 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz; 785 if (hdr.PageLength * 4 > data_sz) { 786 ioc->fc_data.fc_port_page1[portnum].data = NULL; 787 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 788 page1_alloc, page1_dma); 789 goto start_over; 790 } 791 } 792 793 memset(page1_alloc,0,data_sz); 794 795 cfg.physAddr = page1_dma; 796 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 797 798 if ((rc = mpt_config(ioc, &cfg)) == 0) { 799 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc; 800 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz; 801 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma; 802 } 803 else { 804 ioc->fc_data.fc_port_page1[portnum].data = NULL; 805 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 806 page1_alloc, page1_dma); 807 } 808 809 return rc; 810 } 811 812 static void 813 mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc) 814 { 815 int ii; 816 FCPortPage1_t *pp1; 817 818 #define MPTFC_FW_DEVICE_TIMEOUT (1) 819 #define MPTFC_FW_IO_PEND_TIMEOUT (1) 820 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY) 821 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS) 822 823 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 824 if (mptfc_GetFcPortPage1(ioc, ii) != 0) 825 continue; 826 pp1 = ioc->fc_data.fc_port_page1[ii].data; 827 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT) 828 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT) 829 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS) 830 && ((pp1->Flags & OFF_FLAGS) == 0)) 831 continue; 832 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT; 833 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT; 834 pp1->Flags &= ~OFF_FLAGS; 835 pp1->Flags |= ON_FLAGS; 836 mptfc_WriteFcPortPage1(ioc, ii); 837 } 838 } 839 840 841 static void 842 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum) 843 { 844 unsigned class = 0, cos = 0; 845 846 /* don't know what to do as only one scsi (fc) host was allocated */ 847 if (portnum != 0) 848 return; 849 850 class = ioc->fc_port_page0[portnum].SupportedServiceClass; 851 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1) 852 cos |= FC_COS_CLASS1; 853 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2) 854 cos |= FC_COS_CLASS2; 855 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3) 856 cos |= FC_COS_CLASS3; 857 858 fc_host_node_name(ioc->sh) = 859 (u64)ioc->fc_port_page0[portnum].WWNN.High << 32 860 | (u64)ioc->fc_port_page0[portnum].WWNN.Low; 861 862 fc_host_port_name(ioc->sh) = 863 (u64)ioc->fc_port_page0[portnum].WWPN.High << 32 864 | (u64)ioc->fc_port_page0[portnum].WWPN.Low; 865 866 fc_host_port_id(ioc->sh) = ioc->fc_port_page0[portnum].PortIdentifier; 867 868 fc_host_supported_classes(ioc->sh) = cos; 869 870 fc_host_tgtid_bind_type(ioc->sh) = FC_TGTID_BIND_BY_WWPN; 871 } 872 873 static void 874 mptfc_setup_reset(void *arg) 875 { 876 MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg; 877 u64 pn; 878 struct mptfc_rport_info *ri; 879 880 /* reset about to happen, delete (block) all rports */ 881 list_for_each_entry(ri, &ioc->fc_rports, list) { 882 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 883 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED; 884 fc_remote_port_delete(ri->rport); /* won't sleep */ 885 ri->rport = NULL; 886 887 pn = (u64)ri->pg0.WWPN.High << 32 | 888 (u64)ri->pg0.WWPN.Low; 889 dfcprintk ((MYIOC_s_INFO_FMT 890 "mptfc_setup_reset.%d: %llx deleted\n", 891 ioc->name, 892 ioc->sh->host_no, 893 (unsigned long long)pn)); 894 } 895 } 896 } 897 898 static void 899 mptfc_rescan_devices(void *arg) 900 { 901 MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg; 902 int ii; 903 int work_to_do; 904 u64 pn; 905 unsigned long flags; 906 struct mptfc_rport_info *ri; 907 908 do { 909 /* start by tagging all ports as missing */ 910 list_for_each_entry(ri, &ioc->fc_rports, list) { 911 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 912 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; 913 } 914 } 915 916 /* 917 * now rescan devices known to adapter, 918 * will reregister existing rports 919 */ 920 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 921 (void) mptfc_GetFcPortPage0(ioc, ii); 922 mptfc_init_host_attr(ioc,ii); /* refresh */ 923 mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev); 924 } 925 926 /* delete devices still missing */ 927 list_for_each_entry(ri, &ioc->fc_rports, list) { 928 /* if newly missing, delete it */ 929 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { 930 931 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| 932 MPT_RPORT_INFO_FLAGS_MISSING); 933 fc_remote_port_delete(ri->rport); /* won't sleep */ 934 ri->rport = NULL; 935 936 pn = (u64)ri->pg0.WWPN.High << 32 | 937 (u64)ri->pg0.WWPN.Low; 938 dfcprintk ((MYIOC_s_INFO_FMT 939 "mptfc_rescan.%d: %llx deleted\n", 940 ioc->name, 941 ioc->sh->host_no, 942 (unsigned long long)pn)); 943 } 944 } 945 946 /* 947 * allow multiple passes as target state 948 * might have changed during scan 949 */ 950 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 951 if (ioc->fc_rescan_work_count > 2) /* only need one more */ 952 ioc->fc_rescan_work_count = 2; 953 work_to_do = --ioc->fc_rescan_work_count; 954 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 955 } while (work_to_do); 956 } 957 958 static int 959 mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) 960 { 961 struct Scsi_Host *sh; 962 MPT_SCSI_HOST *hd; 963 MPT_ADAPTER *ioc; 964 unsigned long flags; 965 int ii; 966 int numSGE = 0; 967 int scale; 968 int ioc_cap; 969 int error=0; 970 int r; 971 972 if ((r = mpt_attach(pdev,id)) != 0) 973 return r; 974 975 ioc = pci_get_drvdata(pdev); 976 ioc->DoneCtx = mptfcDoneCtx; 977 ioc->TaskCtx = mptfcTaskCtx; 978 ioc->InternalCtx = mptfcInternalCtx; 979 980 /* Added sanity check on readiness of the MPT adapter. 981 */ 982 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 983 printk(MYIOC_s_WARN_FMT 984 "Skipping because it's not operational!\n", 985 ioc->name); 986 error = -ENODEV; 987 goto out_mptfc_probe; 988 } 989 990 if (!ioc->active) { 991 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 992 ioc->name); 993 error = -ENODEV; 994 goto out_mptfc_probe; 995 } 996 997 /* Sanity check - ensure at least 1 port is INITIATOR capable 998 */ 999 ioc_cap = 0; 1000 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1001 if (ioc->pfacts[ii].ProtocolFlags & 1002 MPI_PORTFACTS_PROTOCOL_INITIATOR) 1003 ioc_cap ++; 1004 } 1005 1006 if (!ioc_cap) { 1007 printk(MYIOC_s_WARN_FMT 1008 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", 1009 ioc->name, ioc); 1010 return -ENODEV; 1011 } 1012 1013 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST)); 1014 1015 if (!sh) { 1016 printk(MYIOC_s_WARN_FMT 1017 "Unable to register controller with SCSI subsystem\n", 1018 ioc->name); 1019 error = -1; 1020 goto out_mptfc_probe; 1021 } 1022 1023 spin_lock_init(&ioc->fc_rescan_work_lock); 1024 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices,(void *)ioc); 1025 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset, (void *)ioc); 1026 1027 spin_lock_irqsave(&ioc->FreeQlock, flags); 1028 1029 /* Attach the SCSI Host to the IOC structure 1030 */ 1031 ioc->sh = sh; 1032 1033 sh->io_port = 0; 1034 sh->n_io_port = 0; 1035 sh->irq = 0; 1036 1037 /* set 16 byte cdb's */ 1038 sh->max_cmd_len = 16; 1039 1040 sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255; 1041 1042 sh->max_lun = MPT_LAST_LUN + 1; 1043 sh->max_channel = 0; 1044 sh->this_id = ioc->pfacts[0].PortSCSIID; 1045 1046 /* Required entry. 1047 */ 1048 sh->unique_id = ioc->id; 1049 1050 /* Verify that we won't exceed the maximum 1051 * number of chain buffers 1052 * We can optimize: ZZ = req_sz/sizeof(SGE) 1053 * For 32bit SGE's: 1054 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 1055 * + (req_sz - 64)/sizeof(SGE) 1056 * A slightly different algorithm is required for 1057 * 64bit SGEs. 1058 */ 1059 scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32)); 1060 if (sizeof(dma_addr_t) == sizeof(u64)) { 1061 numSGE = (scale - 1) * 1062 (ioc->facts.MaxChainDepth-1) + scale + 1063 (ioc->req_sz - 60) / (sizeof(dma_addr_t) + 1064 sizeof(u32)); 1065 } else { 1066 numSGE = 1 + (scale - 1) * 1067 (ioc->facts.MaxChainDepth-1) + scale + 1068 (ioc->req_sz - 64) / (sizeof(dma_addr_t) + 1069 sizeof(u32)); 1070 } 1071 1072 if (numSGE < sh->sg_tablesize) { 1073 /* Reset this value */ 1074 dprintk((MYIOC_s_INFO_FMT 1075 "Resetting sg_tablesize to %d from %d\n", 1076 ioc->name, numSGE, sh->sg_tablesize)); 1077 sh->sg_tablesize = numSGE; 1078 } 1079 1080 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1081 1082 hd = (MPT_SCSI_HOST *) sh->hostdata; 1083 hd->ioc = ioc; 1084 1085 /* SCSI needs scsi_cmnd lookup table! 1086 * (with size equal to req_depth*PtrSz!) 1087 */ 1088 hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); 1089 if (!hd->ScsiLookup) { 1090 error = -ENOMEM; 1091 goto out_mptfc_probe; 1092 } 1093 1094 dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p\n", 1095 ioc->name, hd->ScsiLookup)); 1096 1097 /* Allocate memory for the device structures. 1098 * A non-Null pointer at an offset 1099 * indicates a device exists. 1100 * max_id = 1 + maximum id (hosts.h) 1101 */ 1102 hd->Targets = kcalloc(sh->max_id, sizeof(void *), GFP_ATOMIC); 1103 if (!hd->Targets) { 1104 error = -ENOMEM; 1105 goto out_mptfc_probe; 1106 } 1107 1108 dprintk((KERN_INFO " vdev @ %p\n", hd->Targets)); 1109 1110 /* Clear the TM flags 1111 */ 1112 hd->tmPending = 0; 1113 hd->tmState = TM_STATE_NONE; 1114 hd->resetPending = 0; 1115 hd->abortSCpnt = NULL; 1116 1117 /* Clear the pointer used to store 1118 * single-threaded commands, i.e., those 1119 * issued during a bus scan, dv and 1120 * configuration pages. 1121 */ 1122 hd->cmdPtr = NULL; 1123 1124 /* Initialize this SCSI Hosts' timers 1125 * To use, set the timer expires field 1126 * and add_timer 1127 */ 1128 init_timer(&hd->timer); 1129 hd->timer.data = (unsigned long) hd; 1130 hd->timer.function = mptscsih_timer_expired; 1131 1132 hd->mpt_pq_filter = mpt_pq_filter; 1133 1134 ddvprintk((MYIOC_s_INFO_FMT 1135 "mpt_pq_filter %x\n", 1136 ioc->name, 1137 mpt_pq_filter)); 1138 1139 init_waitqueue_head(&hd->scandv_waitq); 1140 hd->scandv_wait_done = 0; 1141 hd->last_queue_full = 0; 1142 1143 sh->transportt = mptfc_transport_template; 1144 error = scsi_add_host (sh, &ioc->pcidev->dev); 1145 if(error) { 1146 dprintk((KERN_ERR MYNAM 1147 "scsi_add_host failed\n")); 1148 goto out_mptfc_probe; 1149 } 1150 1151 /* initialize workqueue */ 1152 1153 snprintf(ioc->fc_rescan_work_q_name, KOBJ_NAME_LEN, "mptfc_wq_%d", 1154 sh->host_no); 1155 ioc->fc_rescan_work_q = 1156 create_singlethread_workqueue(ioc->fc_rescan_work_q_name); 1157 if (!ioc->fc_rescan_work_q) 1158 goto out_mptfc_probe; 1159 1160 /* 1161 * Pre-fetch FC port WWN and stuff... 1162 * (FCPortPage0_t stuff) 1163 */ 1164 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1165 (void) mptfc_GetFcPortPage0(ioc, ii); 1166 } 1167 mptfc_SetFcPortPage1_defaults(ioc); 1168 1169 /* 1170 * scan for rports - 1171 * by doing it via the workqueue, some locking is eliminated 1172 */ 1173 1174 ioc->fc_rescan_work_count = 1; 1175 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); 1176 flush_workqueue(ioc->fc_rescan_work_q); 1177 1178 return 0; 1179 1180 out_mptfc_probe: 1181 1182 mptscsih_remove(pdev); 1183 return error; 1184 } 1185 1186 static struct pci_driver mptfc_driver = { 1187 .name = "mptfc", 1188 .id_table = mptfc_pci_table, 1189 .probe = mptfc_probe, 1190 .remove = __devexit_p(mptfc_remove), 1191 .shutdown = mptscsih_shutdown, 1192 #ifdef CONFIG_PM 1193 .suspend = mptscsih_suspend, 1194 .resume = mptscsih_resume, 1195 #endif 1196 }; 1197 1198 static int 1199 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 1200 { 1201 MPT_SCSI_HOST *hd; 1202 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 1203 unsigned long flags; 1204 int rc=1; 1205 1206 devtverboseprintk((MYIOC_s_INFO_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n", 1207 ioc->name, event)); 1208 1209 if (ioc->sh == NULL || 1210 ((hd = (MPT_SCSI_HOST *)ioc->sh->hostdata) == NULL)) 1211 return 1; 1212 1213 switch (event) { 1214 case MPI_EVENT_RESCAN: 1215 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1216 if (ioc->fc_rescan_work_q) { 1217 if (ioc->fc_rescan_work_count++ == 0) { 1218 queue_work(ioc->fc_rescan_work_q, 1219 &ioc->fc_rescan_work); 1220 } 1221 } 1222 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1223 break; 1224 default: 1225 rc = mptscsih_event_process(ioc,pEvReply); 1226 break; 1227 } 1228 return rc; 1229 } 1230 1231 static int 1232 mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 1233 { 1234 int rc; 1235 unsigned long flags; 1236 1237 rc = mptscsih_ioc_reset(ioc,reset_phase); 1238 if (rc == 0) 1239 return rc; 1240 1241 1242 dtmprintk((KERN_WARNING MYNAM 1243 ": IOC %s_reset routed to FC host driver!\n", 1244 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( 1245 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); 1246 1247 if (reset_phase == MPT_IOC_SETUP_RESET) { 1248 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1249 if (ioc->fc_rescan_work_q) { 1250 queue_work(ioc->fc_rescan_work_q, 1251 &ioc->fc_setup_reset_work); 1252 } 1253 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1254 } 1255 1256 else if (reset_phase == MPT_IOC_PRE_RESET) { 1257 } 1258 1259 else { /* MPT_IOC_POST_RESET */ 1260 mptfc_SetFcPortPage1_defaults(ioc); 1261 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1262 if (ioc->fc_rescan_work_q) { 1263 if (ioc->fc_rescan_work_count++ == 0) { 1264 queue_work(ioc->fc_rescan_work_q, 1265 &ioc->fc_rescan_work); 1266 } 1267 } 1268 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1269 } 1270 return 1; 1271 } 1272 1273 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1274 /** 1275 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with 1276 * linux scsi mid-layer. 1277 * 1278 * Returns 0 for success, non-zero for failure. 1279 */ 1280 static int __init 1281 mptfc_init(void) 1282 { 1283 int error; 1284 1285 show_mptmod_ver(my_NAME, my_VERSION); 1286 1287 /* sanity check module parameters */ 1288 if (mptfc_dev_loss_tmo <= 0) 1289 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; 1290 1291 mptfc_transport_template = 1292 fc_attach_transport(&mptfc_transport_functions); 1293 1294 if (!mptfc_transport_template) 1295 return -ENODEV; 1296 1297 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER); 1298 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER); 1299 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER); 1300 1301 if (mpt_event_register(mptfcDoneCtx, mptfc_event_process) == 0) { 1302 devtverboseprintk((KERN_INFO MYNAM 1303 ": Registered for IOC event notifications\n")); 1304 } 1305 1306 if (mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset) == 0) { 1307 dprintk((KERN_INFO MYNAM 1308 ": Registered for IOC reset notifications\n")); 1309 } 1310 1311 error = pci_register_driver(&mptfc_driver); 1312 if (error) 1313 fc_release_transport(mptfc_transport_template); 1314 1315 return error; 1316 } 1317 1318 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1319 /** 1320 * mptfc_remove - Removed fc infrastructure for devices 1321 * @pdev: Pointer to pci_dev structure 1322 * 1323 */ 1324 static void __devexit 1325 mptfc_remove(struct pci_dev *pdev) 1326 { 1327 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1328 struct mptfc_rport_info *p, *n; 1329 struct workqueue_struct *work_q; 1330 unsigned long flags; 1331 int ii; 1332 1333 /* destroy workqueue */ 1334 if ((work_q=ioc->fc_rescan_work_q)) { 1335 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1336 ioc->fc_rescan_work_q = NULL; 1337 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1338 destroy_workqueue(work_q); 1339 } 1340 1341 fc_remove_host(ioc->sh); 1342 1343 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) { 1344 list_del(&p->list); 1345 kfree(p); 1346 } 1347 1348 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 1349 if (ioc->fc_data.fc_port_page1[ii].data) { 1350 pci_free_consistent(ioc->pcidev, 1351 ioc->fc_data.fc_port_page1[ii].pg_sz, 1352 (u8 *) ioc->fc_data.fc_port_page1[ii].data, 1353 ioc->fc_data.fc_port_page1[ii].dma); 1354 ioc->fc_data.fc_port_page1[ii].data = NULL; 1355 } 1356 } 1357 1358 mptscsih_remove(pdev); 1359 } 1360 1361 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1362 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1363 /** 1364 * mptfc_exit - Unregisters MPT adapter(s) 1365 * 1366 */ 1367 static void __exit 1368 mptfc_exit(void) 1369 { 1370 pci_unregister_driver(&mptfc_driver); 1371 fc_release_transport(mptfc_transport_template); 1372 1373 mpt_reset_deregister(mptfcDoneCtx); 1374 dprintk((KERN_INFO MYNAM 1375 ": Deregistered for IOC reset notifications\n")); 1376 1377 mpt_event_deregister(mptfcDoneCtx); 1378 dprintk((KERN_INFO MYNAM 1379 ": Deregistered for IOC event notifications\n")); 1380 1381 mpt_deregister(mptfcInternalCtx); 1382 mpt_deregister(mptfcTaskCtx); 1383 mpt_deregister(mptfcDoneCtx); 1384 } 1385 1386 module_init(mptfc_init); 1387 module_exit(mptfc_exit); 1388