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 /* FIXME! values controlling firmware RESCAN event 173 * need to be set low to allow dev_loss_tmo to 174 * work as expected. Currently, firmware doesn't 175 * notify driver of RESCAN event until some number 176 * of seconds elapse. This value can be set via 177 * lsiutil. 178 */ 179 static void 180 mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 181 { 182 if (timeout > 0) 183 rport->dev_loss_tmo = timeout; 184 else 185 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 186 } 187 188 static int 189 mptfc_FcDevPage0_cmp_func(const void *a, const void *b) 190 { 191 FCDevicePage0_t **aa = (FCDevicePage0_t **)a; 192 FCDevicePage0_t **bb = (FCDevicePage0_t **)b; 193 194 if ((*aa)->CurrentBus == (*bb)->CurrentBus) { 195 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID) 196 return 0; 197 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID) 198 return -1; 199 return 1; 200 } 201 if ((*aa)->CurrentBus < (*bb)->CurrentBus) 202 return -1; 203 return 1; 204 } 205 206 static int 207 mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port, 208 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg)) 209 { 210 ConfigPageHeader_t hdr; 211 CONFIGPARMS cfg; 212 FCDevicePage0_t *ppage0_alloc, *fc; 213 dma_addr_t page0_dma; 214 int data_sz; 215 int ii; 216 217 FCDevicePage0_t *p0_array=NULL, *p_p0; 218 FCDevicePage0_t **pp0_array=NULL, **p_pp0; 219 220 int rc = -ENOMEM; 221 U32 port_id = 0xffffff; 222 int num_targ = 0; 223 int max_bus = ioc->facts.MaxBuses; 224 int max_targ = ioc->facts.MaxDevices; 225 226 if (max_bus == 0 || max_targ == 0) 227 goto out; 228 229 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ; 230 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL); 231 if (!p0_array) 232 goto out; 233 234 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ; 235 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL); 236 if (!pp0_array) 237 goto out; 238 239 do { 240 /* Get FC Device Page 0 header */ 241 hdr.PageVersion = 0; 242 hdr.PageLength = 0; 243 hdr.PageNumber = 0; 244 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE; 245 cfg.cfghdr.hdr = &hdr; 246 cfg.physAddr = -1; 247 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 248 cfg.dir = 0; 249 cfg.pageAddr = port_id; 250 cfg.timeout = 0; 251 252 if ((rc = mpt_config(ioc, &cfg)) != 0) 253 break; 254 255 if (hdr.PageLength <= 0) 256 break; 257 258 data_sz = hdr.PageLength * 4; 259 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, 260 &page0_dma); 261 rc = -ENOMEM; 262 if (!ppage0_alloc) 263 break; 264 265 cfg.physAddr = page0_dma; 266 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 267 268 if ((rc = mpt_config(ioc, &cfg)) == 0) { 269 ppage0_alloc->PortIdentifier = 270 le32_to_cpu(ppage0_alloc->PortIdentifier); 271 272 ppage0_alloc->WWNN.Low = 273 le32_to_cpu(ppage0_alloc->WWNN.Low); 274 275 ppage0_alloc->WWNN.High = 276 le32_to_cpu(ppage0_alloc->WWNN.High); 277 278 ppage0_alloc->WWPN.Low = 279 le32_to_cpu(ppage0_alloc->WWPN.Low); 280 281 ppage0_alloc->WWPN.High = 282 le32_to_cpu(ppage0_alloc->WWPN.High); 283 284 ppage0_alloc->BBCredit = 285 le16_to_cpu(ppage0_alloc->BBCredit); 286 287 ppage0_alloc->MaxRxFrameSize = 288 le16_to_cpu(ppage0_alloc->MaxRxFrameSize); 289 290 port_id = ppage0_alloc->PortIdentifier; 291 num_targ++; 292 *p_p0 = *ppage0_alloc; /* save data */ 293 *p_pp0++ = p_p0++; /* save addr */ 294 } 295 pci_free_consistent(ioc->pcidev, data_sz, 296 (u8 *) ppage0_alloc, page0_dma); 297 if (rc != 0) 298 break; 299 300 } while (port_id <= 0xff0000); 301 302 if (num_targ) { 303 /* sort array */ 304 if (num_targ > 1) 305 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *), 306 mptfc_FcDevPage0_cmp_func, NULL); 307 /* call caller's func for each targ */ 308 for (ii = 0; ii < num_targ; ii++) { 309 fc = *(pp0_array+ii); 310 func(ioc, ioc_port, fc); 311 } 312 } 313 314 out: 315 if (pp0_array) 316 kfree(pp0_array); 317 if (p0_array) 318 kfree(p0_array); 319 return rc; 320 } 321 322 static int 323 mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid) 324 { 325 /* not currently usable */ 326 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID | 327 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID)) 328 return -1; 329 330 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID)) 331 return -1; 332 333 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET)) 334 return -1; 335 336 /* 337 * board data structure already normalized to platform endianness 338 * shifted to avoid unaligned access on 64 bit architecture 339 */ 340 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low; 341 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low; 342 rid->port_id = pg0->PortIdentifier; 343 rid->roles = FC_RPORT_ROLE_UNKNOWN; 344 345 return 0; 346 } 347 348 static void 349 mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0) 350 { 351 struct fc_rport_identifiers rport_ids; 352 struct fc_rport *rport; 353 struct mptfc_rport_info *ri; 354 int new_ri = 1; 355 u64 pn, nn; 356 VirtTarget *vtarget; 357 u32 roles = FC_RPORT_ROLE_UNKNOWN; 358 359 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0) 360 return; 361 362 roles |= FC_RPORT_ROLE_FCP_TARGET; 363 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR) 364 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 365 366 /* scan list looking for a match */ 367 list_for_each_entry(ri, &ioc->fc_rports, list) { 368 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 369 if (pn == rport_ids.port_name) { /* match */ 370 list_move_tail(&ri->list, &ioc->fc_rports); 371 new_ri = 0; 372 break; 373 } 374 } 375 if (new_ri) { /* allocate one */ 376 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL); 377 if (!ri) 378 return; 379 list_add_tail(&ri->list, &ioc->fc_rports); 380 } 381 382 ri->pg0 = *pg0; /* add/update pg0 data */ 383 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING; 384 385 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */ 386 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) { 387 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED; 388 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids); 389 if (rport) { 390 ri->rport = rport; 391 if (new_ri) /* may have been reset by user */ 392 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 393 /* 394 * if already mapped, remap here. If not mapped, 395 * target_alloc will allocate vtarget and map, 396 * slave_alloc will fill in vdev from vtarget. 397 */ 398 if (ri->starget) { 399 vtarget = ri->starget->hostdata; 400 if (vtarget) { 401 vtarget->target_id = pg0->CurrentTargetID; 402 vtarget->bus_id = pg0->CurrentBus; 403 } 404 } 405 *((struct mptfc_rport_info **)rport->dd_data) = ri; 406 /* scan will be scheduled once rport becomes a target */ 407 fc_remote_port_rolechg(rport,roles); 408 409 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 410 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 411 dfcprintk ((MYIOC_s_INFO_FMT 412 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, " 413 "rport tid %d, tmo %d\n", 414 ioc->name, 415 ioc->sh->host_no, 416 pg0->PortIdentifier, 417 (unsigned long long)nn, 418 (unsigned long long)pn, 419 pg0->CurrentTargetID, 420 ri->rport->scsi_target_id, 421 ri->rport->dev_loss_tmo)); 422 } else { 423 list_del(&ri->list); 424 kfree(ri); 425 ri = NULL; 426 } 427 } 428 } 429 430 /* 431 * OS entry point to allow for host driver to free allocated memory 432 * Called if no device present or device being unloaded 433 */ 434 static void 435 mptfc_target_destroy(struct scsi_target *starget) 436 { 437 struct fc_rport *rport; 438 struct mptfc_rport_info *ri; 439 440 rport = starget_to_rport(starget); 441 if (rport) { 442 ri = *((struct mptfc_rport_info **)rport->dd_data); 443 if (ri) /* better be! */ 444 ri->starget = NULL; 445 } 446 if (starget->hostdata) 447 kfree(starget->hostdata); 448 starget->hostdata = NULL; 449 } 450 451 /* 452 * OS entry point to allow host driver to alloc memory 453 * for each scsi target. Called once per device the bus scan. 454 * Return non-zero if allocation fails. 455 */ 456 static int 457 mptfc_target_alloc(struct scsi_target *starget) 458 { 459 VirtTarget *vtarget; 460 struct fc_rport *rport; 461 struct mptfc_rport_info *ri; 462 int rc; 463 464 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); 465 if (!vtarget) 466 return -ENOMEM; 467 starget->hostdata = vtarget; 468 469 rc = -ENODEV; 470 rport = starget_to_rport(starget); 471 if (rport) { 472 ri = *((struct mptfc_rport_info **)rport->dd_data); 473 if (ri) { /* better be! */ 474 vtarget->target_id = ri->pg0.CurrentTargetID; 475 vtarget->bus_id = ri->pg0.CurrentBus; 476 ri->starget = starget; 477 rc = 0; 478 } 479 } 480 if (rc != 0) { 481 kfree(vtarget); 482 starget->hostdata = NULL; 483 } 484 485 return rc; 486 } 487 488 /* 489 * OS entry point to allow host driver to alloc memory 490 * for each scsi device. Called once per device the bus scan. 491 * Return non-zero if allocation fails. 492 * Init memory once per LUN. 493 */ 494 static int 495 mptfc_slave_alloc(struct scsi_device *sdev) 496 { 497 MPT_SCSI_HOST *hd; 498 VirtTarget *vtarget; 499 VirtDevice *vdev; 500 struct scsi_target *starget; 501 struct fc_rport *rport; 502 503 504 starget = scsi_target(sdev); 505 rport = starget_to_rport(starget); 506 507 if (!rport || fc_remote_port_chkready(rport)) 508 return -ENXIO; 509 510 hd = (MPT_SCSI_HOST *)sdev->host->hostdata; 511 512 vdev = kzalloc(sizeof(VirtDevice), GFP_KERNEL); 513 if (!vdev) { 514 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", 515 hd->ioc->name, sizeof(VirtDevice)); 516 return -ENOMEM; 517 } 518 519 520 sdev->hostdata = vdev; 521 vtarget = starget->hostdata; 522 523 if (vtarget->num_luns == 0) { 524 vtarget->ioc_id = hd->ioc->id; 525 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES | 526 MPT_TARGET_FLAGS_VALID_INQUIRY; 527 hd->Targets[sdev->id] = vtarget; 528 } 529 530 vdev->vtarget = vtarget; 531 vdev->lun = sdev->lun; 532 533 vtarget->num_luns++; 534 535 536 #ifdef DMPT_DEBUG_FC 537 { 538 u64 nn, pn; 539 struct mptfc_rport_info *ri; 540 ri = *((struct mptfc_rport_info **)rport->dd_data); 541 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 542 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 543 dfcprintk ((MYIOC_s_INFO_FMT 544 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, " 545 "CurrentTargetID %d, %x %llx %llx\n", 546 hd->ioc->name, 547 sdev->host->host_no, 548 vtarget->num_luns, 549 sdev->id, ri->pg0.CurrentTargetID, 550 ri->pg0.PortIdentifier, 551 (unsigned long long)pn, 552 (unsigned long long)nn)); 553 } 554 #endif 555 556 return 0; 557 } 558 559 static int 560 mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) 561 { 562 struct mptfc_rport_info *ri; 563 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); 564 int err; 565 566 err = fc_remote_port_chkready(rport); 567 if (unlikely(err)) { 568 SCpnt->result = err; 569 done(SCpnt); 570 return 0; 571 } 572 573 /* dd_data is null until finished adding target */ 574 ri = *((struct mptfc_rport_info **)rport->dd_data); 575 if (unlikely(!ri)) { 576 dfcprintk ((MYIOC_s_INFO_FMT 577 "mptfc_qcmd.%d: %d:%d, dd_data is null.\n", 578 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name, 579 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no, 580 SCpnt->device->id,SCpnt->device->lun)); 581 SCpnt->result = DID_IMM_RETRY << 16; 582 done(SCpnt); 583 return 0; 584 } 585 586 err = mptscsih_qcmd(SCpnt,done); 587 #ifdef DMPT_DEBUG_FC 588 if (unlikely(err)) { 589 dfcprintk ((MYIOC_s_INFO_FMT 590 "mptfc_qcmd.%d: %d:%d, mptscsih_qcmd returns non-zero.\n", 591 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name, 592 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no, 593 SCpnt->device->id,SCpnt->device->lun)); 594 } 595 #endif 596 return err; 597 } 598 599 /* 600 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0. 601 * @ioc: Pointer to MPT_ADAPTER structure 602 * @portnum: IOC Port number 603 * 604 * Return: 0 for success 605 * -ENOMEM if no memory available 606 * -EPERM if not allowed due to ISR context 607 * -EAGAIN if no msg frames currently available 608 * -EFAULT for non-successful reply or no reply (timeout) 609 * -EINVAL portnum arg out of range (hardwired to two elements) 610 */ 611 static int 612 mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) 613 { 614 ConfigPageHeader_t hdr; 615 CONFIGPARMS cfg; 616 FCPortPage0_t *ppage0_alloc; 617 FCPortPage0_t *pp0dest; 618 dma_addr_t page0_dma; 619 int data_sz; 620 int copy_sz; 621 int rc; 622 int count = 400; 623 624 if (portnum > 1) 625 return -EINVAL; 626 627 /* Get FCPort Page 0 header */ 628 hdr.PageVersion = 0; 629 hdr.PageLength = 0; 630 hdr.PageNumber = 0; 631 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 632 cfg.cfghdr.hdr = &hdr; 633 cfg.physAddr = -1; 634 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 635 cfg.dir = 0; 636 cfg.pageAddr = portnum; 637 cfg.timeout = 0; 638 639 if ((rc = mpt_config(ioc, &cfg)) != 0) 640 return rc; 641 642 if (hdr.PageLength == 0) 643 return 0; 644 645 data_sz = hdr.PageLength * 4; 646 rc = -ENOMEM; 647 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma); 648 if (ppage0_alloc) { 649 650 try_again: 651 memset((u8 *)ppage0_alloc, 0, data_sz); 652 cfg.physAddr = page0_dma; 653 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 654 655 if ((rc = mpt_config(ioc, &cfg)) == 0) { 656 /* save the data */ 657 pp0dest = &ioc->fc_port_page0[portnum]; 658 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz); 659 memcpy(pp0dest, ppage0_alloc, copy_sz); 660 661 /* 662 * Normalize endianness of structure data, 663 * by byte-swapping all > 1 byte fields! 664 */ 665 pp0dest->Flags = le32_to_cpu(pp0dest->Flags); 666 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier); 667 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low); 668 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High); 669 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low); 670 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High); 671 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass); 672 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds); 673 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed); 674 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize); 675 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low); 676 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High); 677 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low); 678 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High); 679 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount); 680 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators); 681 682 /* 683 * if still doing discovery, 684 * hang loose a while until finished 685 */ 686 if (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) { 687 if (count-- > 0) { 688 msleep_interruptible(100); 689 goto try_again; 690 } 691 printk(MYIOC_s_INFO_FMT "Firmware discovery not" 692 " complete.\n", 693 ioc->name); 694 } 695 } 696 697 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma); 698 } 699 700 return rc; 701 } 702 703 static void 704 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum) 705 { 706 unsigned class = 0, cos = 0; 707 708 /* don't know what to do as only one scsi (fc) host was allocated */ 709 if (portnum != 0) 710 return; 711 712 class = ioc->fc_port_page0[portnum].SupportedServiceClass; 713 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1) 714 cos |= FC_COS_CLASS1; 715 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2) 716 cos |= FC_COS_CLASS2; 717 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3) 718 cos |= FC_COS_CLASS3; 719 720 fc_host_node_name(ioc->sh) = 721 (u64)ioc->fc_port_page0[portnum].WWNN.High << 32 722 | (u64)ioc->fc_port_page0[portnum].WWNN.Low; 723 724 fc_host_port_name(ioc->sh) = 725 (u64)ioc->fc_port_page0[portnum].WWPN.High << 32 726 | (u64)ioc->fc_port_page0[portnum].WWPN.Low; 727 728 fc_host_port_id(ioc->sh) = ioc->fc_port_page0[portnum].PortIdentifier; 729 730 fc_host_supported_classes(ioc->sh) = cos; 731 732 fc_host_tgtid_bind_type(ioc->sh) = FC_TGTID_BIND_BY_WWPN; 733 } 734 735 static void 736 mptfc_rescan_devices(void *arg) 737 { 738 MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg; 739 int ii; 740 int work_to_do; 741 u64 pn; 742 unsigned long flags; 743 struct mptfc_rport_info *ri; 744 745 do { 746 /* start by tagging all ports as missing */ 747 list_for_each_entry(ri, &ioc->fc_rports, list) { 748 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 749 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; 750 } 751 } 752 753 /* 754 * now rescan devices known to adapter, 755 * will reregister existing rports 756 */ 757 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 758 (void) mptfc_GetFcPortPage0(ioc, ii); 759 mptfc_init_host_attr(ioc,ii); /* refresh */ 760 mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev); 761 } 762 763 /* delete devices still missing */ 764 list_for_each_entry(ri, &ioc->fc_rports, list) { 765 /* if newly missing, delete it */ 766 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { 767 768 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| 769 MPT_RPORT_INFO_FLAGS_MISSING); 770 fc_remote_port_delete(ri->rport); /* won't sleep */ 771 ri->rport = NULL; 772 773 pn = (u64)ri->pg0.WWPN.High << 32 | 774 (u64)ri->pg0.WWPN.Low; 775 dfcprintk ((MYIOC_s_INFO_FMT 776 "mptfc_rescan.%d: %llx deleted\n", 777 ioc->name, 778 ioc->sh->host_no, 779 (unsigned long long)pn)); 780 } 781 } 782 783 /* 784 * allow multiple passes as target state 785 * might have changed during scan 786 */ 787 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 788 if (ioc->fc_rescan_work_count > 2) /* only need one more */ 789 ioc->fc_rescan_work_count = 2; 790 work_to_do = --ioc->fc_rescan_work_count; 791 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 792 } while (work_to_do); 793 } 794 795 static int 796 mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) 797 { 798 struct Scsi_Host *sh; 799 MPT_SCSI_HOST *hd; 800 MPT_ADAPTER *ioc; 801 unsigned long flags; 802 int ii; 803 int numSGE = 0; 804 int scale; 805 int ioc_cap; 806 int error=0; 807 int r; 808 809 if ((r = mpt_attach(pdev,id)) != 0) 810 return r; 811 812 ioc = pci_get_drvdata(pdev); 813 ioc->DoneCtx = mptfcDoneCtx; 814 ioc->TaskCtx = mptfcTaskCtx; 815 ioc->InternalCtx = mptfcInternalCtx; 816 817 /* Added sanity check on readiness of the MPT adapter. 818 */ 819 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 820 printk(MYIOC_s_WARN_FMT 821 "Skipping because it's not operational!\n", 822 ioc->name); 823 error = -ENODEV; 824 goto out_mptfc_probe; 825 } 826 827 if (!ioc->active) { 828 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 829 ioc->name); 830 error = -ENODEV; 831 goto out_mptfc_probe; 832 } 833 834 /* Sanity check - ensure at least 1 port is INITIATOR capable 835 */ 836 ioc_cap = 0; 837 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 838 if (ioc->pfacts[ii].ProtocolFlags & 839 MPI_PORTFACTS_PROTOCOL_INITIATOR) 840 ioc_cap ++; 841 } 842 843 if (!ioc_cap) { 844 printk(MYIOC_s_WARN_FMT 845 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", 846 ioc->name, ioc); 847 return -ENODEV; 848 } 849 850 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST)); 851 852 if (!sh) { 853 printk(MYIOC_s_WARN_FMT 854 "Unable to register controller with SCSI subsystem\n", 855 ioc->name); 856 error = -1; 857 goto out_mptfc_probe; 858 } 859 860 spin_lock_init(&ioc->fc_rescan_work_lock); 861 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices,(void *)ioc); 862 863 spin_lock_irqsave(&ioc->FreeQlock, flags); 864 865 /* Attach the SCSI Host to the IOC structure 866 */ 867 ioc->sh = sh; 868 869 sh->io_port = 0; 870 sh->n_io_port = 0; 871 sh->irq = 0; 872 873 /* set 16 byte cdb's */ 874 sh->max_cmd_len = 16; 875 876 sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255; 877 878 sh->max_lun = MPT_LAST_LUN + 1; 879 sh->max_channel = 0; 880 sh->this_id = ioc->pfacts[0].PortSCSIID; 881 882 /* Required entry. 883 */ 884 sh->unique_id = ioc->id; 885 886 /* Verify that we won't exceed the maximum 887 * number of chain buffers 888 * We can optimize: ZZ = req_sz/sizeof(SGE) 889 * For 32bit SGE's: 890 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 891 * + (req_sz - 64)/sizeof(SGE) 892 * A slightly different algorithm is required for 893 * 64bit SGEs. 894 */ 895 scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32)); 896 if (sizeof(dma_addr_t) == sizeof(u64)) { 897 numSGE = (scale - 1) * 898 (ioc->facts.MaxChainDepth-1) + scale + 899 (ioc->req_sz - 60) / (sizeof(dma_addr_t) + 900 sizeof(u32)); 901 } else { 902 numSGE = 1 + (scale - 1) * 903 (ioc->facts.MaxChainDepth-1) + scale + 904 (ioc->req_sz - 64) / (sizeof(dma_addr_t) + 905 sizeof(u32)); 906 } 907 908 if (numSGE < sh->sg_tablesize) { 909 /* Reset this value */ 910 dprintk((MYIOC_s_INFO_FMT 911 "Resetting sg_tablesize to %d from %d\n", 912 ioc->name, numSGE, sh->sg_tablesize)); 913 sh->sg_tablesize = numSGE; 914 } 915 916 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 917 918 hd = (MPT_SCSI_HOST *) sh->hostdata; 919 hd->ioc = ioc; 920 921 /* SCSI needs scsi_cmnd lookup table! 922 * (with size equal to req_depth*PtrSz!) 923 */ 924 hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); 925 if (!hd->ScsiLookup) { 926 error = -ENOMEM; 927 goto out_mptfc_probe; 928 } 929 930 dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p\n", 931 ioc->name, hd->ScsiLookup)); 932 933 /* Allocate memory for the device structures. 934 * A non-Null pointer at an offset 935 * indicates a device exists. 936 * max_id = 1 + maximum id (hosts.h) 937 */ 938 hd->Targets = kcalloc(sh->max_id, sizeof(void *), GFP_ATOMIC); 939 if (!hd->Targets) { 940 error = -ENOMEM; 941 goto out_mptfc_probe; 942 } 943 944 dprintk((KERN_INFO " vdev @ %p\n", hd->Targets)); 945 946 /* Clear the TM flags 947 */ 948 hd->tmPending = 0; 949 hd->tmState = TM_STATE_NONE; 950 hd->resetPending = 0; 951 hd->abortSCpnt = NULL; 952 953 /* Clear the pointer used to store 954 * single-threaded commands, i.e., those 955 * issued during a bus scan, dv and 956 * configuration pages. 957 */ 958 hd->cmdPtr = NULL; 959 960 /* Initialize this SCSI Hosts' timers 961 * To use, set the timer expires field 962 * and add_timer 963 */ 964 init_timer(&hd->timer); 965 hd->timer.data = (unsigned long) hd; 966 hd->timer.function = mptscsih_timer_expired; 967 968 hd->mpt_pq_filter = mpt_pq_filter; 969 970 ddvprintk((MYIOC_s_INFO_FMT 971 "mpt_pq_filter %x\n", 972 ioc->name, 973 mpt_pq_filter)); 974 975 init_waitqueue_head(&hd->scandv_waitq); 976 hd->scandv_wait_done = 0; 977 hd->last_queue_full = 0; 978 979 sh->transportt = mptfc_transport_template; 980 error = scsi_add_host (sh, &ioc->pcidev->dev); 981 if(error) { 982 dprintk((KERN_ERR MYNAM 983 "scsi_add_host failed\n")); 984 goto out_mptfc_probe; 985 } 986 987 /* initialize workqueue */ 988 989 snprintf(ioc->fc_rescan_work_q_name, KOBJ_NAME_LEN, "mptfc_wq_%d", 990 sh->host_no); 991 ioc->fc_rescan_work_q = 992 create_singlethread_workqueue(ioc->fc_rescan_work_q_name); 993 if (!ioc->fc_rescan_work_q) 994 goto out_mptfc_probe; 995 996 /* 997 * Pre-fetch FC port WWN and stuff... 998 * (FCPortPage0_t stuff) 999 */ 1000 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1001 (void) mptfc_GetFcPortPage0(ioc, ii); 1002 } 1003 1004 /* 1005 * scan for rports - 1006 * by doing it via the workqueue, some locking is eliminated 1007 */ 1008 1009 ioc->fc_rescan_work_count = 1; 1010 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); 1011 flush_workqueue(ioc->fc_rescan_work_q); 1012 1013 return 0; 1014 1015 out_mptfc_probe: 1016 1017 mptscsih_remove(pdev); 1018 return error; 1019 } 1020 1021 static struct pci_driver mptfc_driver = { 1022 .name = "mptfc", 1023 .id_table = mptfc_pci_table, 1024 .probe = mptfc_probe, 1025 .remove = __devexit_p(mptfc_remove), 1026 .shutdown = mptscsih_shutdown, 1027 #ifdef CONFIG_PM 1028 .suspend = mptscsih_suspend, 1029 .resume = mptscsih_resume, 1030 #endif 1031 }; 1032 1033 static int 1034 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 1035 { 1036 MPT_SCSI_HOST *hd; 1037 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 1038 unsigned long flags; 1039 int rc=1; 1040 1041 devtverboseprintk((MYIOC_s_INFO_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n", 1042 ioc->name, event)); 1043 1044 if (ioc->sh == NULL || 1045 ((hd = (MPT_SCSI_HOST *)ioc->sh->hostdata) == NULL)) 1046 return 1; 1047 1048 switch (event) { 1049 case MPI_EVENT_RESCAN: 1050 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1051 if (ioc->fc_rescan_work_q) { 1052 if (ioc->fc_rescan_work_count++ == 0) { 1053 queue_work(ioc->fc_rescan_work_q, 1054 &ioc->fc_rescan_work); 1055 } 1056 } 1057 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1058 break; 1059 default: 1060 rc = mptscsih_event_process(ioc,pEvReply); 1061 break; 1062 } 1063 return rc; 1064 } 1065 1066 static int 1067 mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 1068 { 1069 int rc; 1070 unsigned long flags; 1071 1072 rc = mptscsih_ioc_reset(ioc,reset_phase); 1073 if (rc == 0) 1074 return rc; 1075 1076 1077 dtmprintk((KERN_WARNING MYNAM 1078 ": IOC %s_reset routed to FC host driver!\n", 1079 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( 1080 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); 1081 1082 if (reset_phase == MPT_IOC_SETUP_RESET) { 1083 } 1084 1085 else if (reset_phase == MPT_IOC_PRE_RESET) { 1086 } 1087 1088 else { /* MPT_IOC_POST_RESET */ 1089 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1090 if (ioc->fc_rescan_work_q) { 1091 if (ioc->fc_rescan_work_count++ == 0) { 1092 queue_work(ioc->fc_rescan_work_q, 1093 &ioc->fc_rescan_work); 1094 } 1095 } 1096 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1097 } 1098 return 1; 1099 } 1100 1101 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1102 /** 1103 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with 1104 * linux scsi mid-layer. 1105 * 1106 * Returns 0 for success, non-zero for failure. 1107 */ 1108 static int __init 1109 mptfc_init(void) 1110 { 1111 int error; 1112 1113 show_mptmod_ver(my_NAME, my_VERSION); 1114 1115 /* sanity check module parameter */ 1116 if (mptfc_dev_loss_tmo == 0) 1117 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; 1118 1119 mptfc_transport_template = 1120 fc_attach_transport(&mptfc_transport_functions); 1121 1122 if (!mptfc_transport_template) 1123 return -ENODEV; 1124 1125 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER); 1126 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER); 1127 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER); 1128 1129 if (mpt_event_register(mptfcDoneCtx, mptfc_event_process) == 0) { 1130 devtverboseprintk((KERN_INFO MYNAM 1131 ": Registered for IOC event notifications\n")); 1132 } 1133 1134 if (mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset) == 0) { 1135 dprintk((KERN_INFO MYNAM 1136 ": Registered for IOC reset notifications\n")); 1137 } 1138 1139 error = pci_register_driver(&mptfc_driver); 1140 if (error) 1141 fc_release_transport(mptfc_transport_template); 1142 1143 return error; 1144 } 1145 1146 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1147 /** 1148 * mptfc_remove - Removed fc infrastructure for devices 1149 * @pdev: Pointer to pci_dev structure 1150 * 1151 */ 1152 static void __devexit 1153 mptfc_remove(struct pci_dev *pdev) 1154 { 1155 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1156 struct mptfc_rport_info *p, *n; 1157 struct workqueue_struct *work_q; 1158 unsigned long flags; 1159 1160 /* destroy workqueue */ 1161 if ((work_q=ioc->fc_rescan_work_q)) { 1162 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1163 ioc->fc_rescan_work_q = NULL; 1164 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1165 destroy_workqueue(work_q); 1166 } 1167 1168 fc_remove_host(ioc->sh); 1169 1170 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) { 1171 list_del(&p->list); 1172 kfree(p); 1173 } 1174 1175 mptscsih_remove(pdev); 1176 } 1177 1178 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1179 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1180 /** 1181 * mptfc_exit - Unregisters MPT adapter(s) 1182 * 1183 */ 1184 static void __exit 1185 mptfc_exit(void) 1186 { 1187 pci_unregister_driver(&mptfc_driver); 1188 fc_release_transport(mptfc_transport_template); 1189 1190 mpt_reset_deregister(mptfcDoneCtx); 1191 dprintk((KERN_INFO MYNAM 1192 ": Deregistered for IOC reset notifications\n")); 1193 1194 mpt_event_deregister(mptfcDoneCtx); 1195 dprintk((KERN_INFO MYNAM 1196 ": Deregistered for IOC event notifications\n")); 1197 1198 mpt_deregister(mptfcInternalCtx); 1199 mpt_deregister(mptfcTaskCtx); 1200 mpt_deregister(mptfcDoneCtx); 1201 } 1202 1203 module_init(mptfc_init); 1204 module_exit(mptfc_exit); 1205