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 #define MPTFC_DEV_LOSS_TMO (60) 81 static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */ 82 module_param(mptfc_dev_loss_tmo, int, 0); 83 MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the " 84 " transport to wait for an rport to " 85 " return following a device loss event." 86 " Default=60."); 87 88 static int mptfcDoneCtx = -1; 89 static int mptfcTaskCtx = -1; 90 static int mptfcInternalCtx = -1; /* Used only for internal commands */ 91 92 static int mptfc_target_alloc(struct scsi_target *starget); 93 static int mptfc_slave_alloc(struct scsi_device *sdev); 94 static int mptfc_qcmd(struct scsi_cmnd *SCpnt, 95 void (*done)(struct scsi_cmnd *)); 96 static void mptfc_target_destroy(struct scsi_target *starget); 97 static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout); 98 static void __devexit mptfc_remove(struct pci_dev *pdev); 99 100 static struct scsi_host_template mptfc_driver_template = { 101 .module = THIS_MODULE, 102 .proc_name = "mptfc", 103 .proc_info = mptscsih_proc_info, 104 .name = "MPT FC Host", 105 .info = mptscsih_info, 106 .queuecommand = mptfc_qcmd, 107 .target_alloc = mptfc_target_alloc, 108 .slave_alloc = mptfc_slave_alloc, 109 .slave_configure = mptscsih_slave_configure, 110 .target_destroy = mptfc_target_destroy, 111 .slave_destroy = mptscsih_slave_destroy, 112 .change_queue_depth = mptscsih_change_queue_depth, 113 .eh_abort_handler = mptscsih_abort, 114 .eh_device_reset_handler = mptscsih_dev_reset, 115 .eh_bus_reset_handler = mptscsih_bus_reset, 116 .eh_host_reset_handler = mptscsih_host_reset, 117 .bios_param = mptscsih_bios_param, 118 .can_queue = MPT_FC_CAN_QUEUE, 119 .this_id = -1, 120 .sg_tablesize = MPT_SCSI_SG_DEPTH, 121 .max_sectors = 8192, 122 .cmd_per_lun = 7, 123 .use_clustering = ENABLE_CLUSTERING, 124 }; 125 126 /**************************************************************************** 127 * Supported hardware 128 */ 129 130 static struct pci_device_id mptfc_pci_table[] = { 131 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909, 132 PCI_ANY_ID, PCI_ANY_ID }, 133 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919, 134 PCI_ANY_ID, PCI_ANY_ID }, 135 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929, 136 PCI_ANY_ID, PCI_ANY_ID }, 137 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X, 138 PCI_ANY_ID, PCI_ANY_ID }, 139 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X, 140 PCI_ANY_ID, PCI_ANY_ID }, 141 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X, 142 PCI_ANY_ID, PCI_ANY_ID }, 143 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X, 144 PCI_ANY_ID, PCI_ANY_ID }, 145 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E, 146 PCI_ANY_ID, PCI_ANY_ID }, 147 {0} /* Terminating entry */ 148 }; 149 MODULE_DEVICE_TABLE(pci, mptfc_pci_table); 150 151 static struct scsi_transport_template *mptfc_transport_template = NULL; 152 153 static struct fc_function_template mptfc_transport_functions = { 154 .dd_fcrport_size = 8, 155 .show_host_node_name = 1, 156 .show_host_port_name = 1, 157 .show_host_supported_classes = 1, 158 .show_host_port_id = 1, 159 .show_rport_supported_classes = 1, 160 .show_starget_node_name = 1, 161 .show_starget_port_name = 1, 162 .show_starget_port_id = 1, 163 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo, 164 .show_rport_dev_loss_tmo = 1, 165 166 }; 167 168 static void 169 mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 170 { 171 if (timeout > 0) 172 rport->dev_loss_tmo = timeout; 173 else 174 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 175 } 176 177 static int 178 mptfc_FcDevPage0_cmp_func(const void *a, const void *b) 179 { 180 FCDevicePage0_t **aa = (FCDevicePage0_t **)a; 181 FCDevicePage0_t **bb = (FCDevicePage0_t **)b; 182 183 if ((*aa)->CurrentBus == (*bb)->CurrentBus) { 184 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID) 185 return 0; 186 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID) 187 return -1; 188 return 1; 189 } 190 if ((*aa)->CurrentBus < (*bb)->CurrentBus) 191 return -1; 192 return 1; 193 } 194 195 static int 196 mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port, 197 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg)) 198 { 199 ConfigPageHeader_t hdr; 200 CONFIGPARMS cfg; 201 FCDevicePage0_t *ppage0_alloc, *fc; 202 dma_addr_t page0_dma; 203 int data_sz; 204 int ii; 205 206 FCDevicePage0_t *p0_array=NULL, *p_p0; 207 FCDevicePage0_t **pp0_array=NULL, **p_pp0; 208 209 int rc = -ENOMEM; 210 U32 port_id = 0xffffff; 211 int num_targ = 0; 212 int max_bus = ioc->facts.MaxBuses; 213 int max_targ = ioc->facts.MaxDevices; 214 215 if (max_bus == 0 || max_targ == 0) 216 goto out; 217 218 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ; 219 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL); 220 if (!p0_array) 221 goto out; 222 223 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ; 224 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL); 225 if (!pp0_array) 226 goto out; 227 228 do { 229 /* Get FC Device Page 0 header */ 230 hdr.PageVersion = 0; 231 hdr.PageLength = 0; 232 hdr.PageNumber = 0; 233 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE; 234 cfg.cfghdr.hdr = &hdr; 235 cfg.physAddr = -1; 236 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 237 cfg.dir = 0; 238 cfg.pageAddr = port_id; 239 cfg.timeout = 0; 240 241 if ((rc = mpt_config(ioc, &cfg)) != 0) 242 break; 243 244 if (hdr.PageLength <= 0) 245 break; 246 247 data_sz = hdr.PageLength * 4; 248 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, 249 &page0_dma); 250 rc = -ENOMEM; 251 if (!ppage0_alloc) 252 break; 253 254 cfg.physAddr = page0_dma; 255 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 256 257 if ((rc = mpt_config(ioc, &cfg)) == 0) { 258 ppage0_alloc->PortIdentifier = 259 le32_to_cpu(ppage0_alloc->PortIdentifier); 260 261 ppage0_alloc->WWNN.Low = 262 le32_to_cpu(ppage0_alloc->WWNN.Low); 263 264 ppage0_alloc->WWNN.High = 265 le32_to_cpu(ppage0_alloc->WWNN.High); 266 267 ppage0_alloc->WWPN.Low = 268 le32_to_cpu(ppage0_alloc->WWPN.Low); 269 270 ppage0_alloc->WWPN.High = 271 le32_to_cpu(ppage0_alloc->WWPN.High); 272 273 ppage0_alloc->BBCredit = 274 le16_to_cpu(ppage0_alloc->BBCredit); 275 276 ppage0_alloc->MaxRxFrameSize = 277 le16_to_cpu(ppage0_alloc->MaxRxFrameSize); 278 279 port_id = ppage0_alloc->PortIdentifier; 280 num_targ++; 281 *p_p0 = *ppage0_alloc; /* save data */ 282 *p_pp0++ = p_p0++; /* save addr */ 283 } 284 pci_free_consistent(ioc->pcidev, data_sz, 285 (u8 *) ppage0_alloc, page0_dma); 286 if (rc != 0) 287 break; 288 289 } while (port_id <= 0xff0000); 290 291 if (num_targ) { 292 /* sort array */ 293 if (num_targ > 1) 294 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *), 295 mptfc_FcDevPage0_cmp_func, NULL); 296 /* call caller's func for each targ */ 297 for (ii = 0; ii < num_targ; ii++) { 298 fc = *(pp0_array+ii); 299 func(ioc, ioc_port, fc); 300 } 301 } 302 303 out: 304 kfree(pp0_array); 305 kfree(p0_array); 306 return rc; 307 } 308 309 static int 310 mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid) 311 { 312 /* not currently usable */ 313 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID | 314 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID)) 315 return -1; 316 317 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID)) 318 return -1; 319 320 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET)) 321 return -1; 322 323 /* 324 * board data structure already normalized to platform endianness 325 * shifted to avoid unaligned access on 64 bit architecture 326 */ 327 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low; 328 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low; 329 rid->port_id = pg0->PortIdentifier; 330 rid->roles = FC_RPORT_ROLE_UNKNOWN; 331 332 return 0; 333 } 334 335 static void 336 mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0) 337 { 338 struct fc_rport_identifiers rport_ids; 339 struct fc_rport *rport; 340 struct mptfc_rport_info *ri; 341 int new_ri = 1; 342 u64 pn, nn; 343 VirtTarget *vtarget; 344 u32 roles = FC_RPORT_ROLE_UNKNOWN; 345 346 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0) 347 return; 348 349 roles |= FC_RPORT_ROLE_FCP_TARGET; 350 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR) 351 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 352 353 /* scan list looking for a match */ 354 list_for_each_entry(ri, &ioc->fc_rports, list) { 355 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 356 if (pn == rport_ids.port_name) { /* match */ 357 list_move_tail(&ri->list, &ioc->fc_rports); 358 new_ri = 0; 359 break; 360 } 361 } 362 if (new_ri) { /* allocate one */ 363 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL); 364 if (!ri) 365 return; 366 list_add_tail(&ri->list, &ioc->fc_rports); 367 } 368 369 ri->pg0 = *pg0; /* add/update pg0 data */ 370 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING; 371 372 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */ 373 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) { 374 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED; 375 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids); 376 if (rport) { 377 ri->rport = rport; 378 if (new_ri) /* may have been reset by user */ 379 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 380 /* 381 * if already mapped, remap here. If not mapped, 382 * target_alloc will allocate vtarget and map, 383 * slave_alloc will fill in vdev from vtarget. 384 */ 385 if (ri->starget) { 386 vtarget = ri->starget->hostdata; 387 if (vtarget) { 388 vtarget->target_id = pg0->CurrentTargetID; 389 vtarget->bus_id = pg0->CurrentBus; 390 } 391 } 392 *((struct mptfc_rport_info **)rport->dd_data) = ri; 393 /* scan will be scheduled once rport becomes a target */ 394 fc_remote_port_rolechg(rport,roles); 395 396 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 397 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 398 dfcprintk ((MYIOC_s_INFO_FMT 399 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, " 400 "rport tid %d, tmo %d\n", 401 ioc->name, 402 ioc->sh->host_no, 403 pg0->PortIdentifier, 404 (unsigned long long)nn, 405 (unsigned long long)pn, 406 pg0->CurrentTargetID, 407 ri->rport->scsi_target_id, 408 ri->rport->dev_loss_tmo)); 409 } else { 410 list_del(&ri->list); 411 kfree(ri); 412 ri = NULL; 413 } 414 } 415 } 416 417 /* 418 * OS entry point to allow for host driver to free allocated memory 419 * Called if no device present or device being unloaded 420 */ 421 static void 422 mptfc_target_destroy(struct scsi_target *starget) 423 { 424 struct fc_rport *rport; 425 struct mptfc_rport_info *ri; 426 427 rport = starget_to_rport(starget); 428 if (rport) { 429 ri = *((struct mptfc_rport_info **)rport->dd_data); 430 if (ri) /* better be! */ 431 ri->starget = NULL; 432 } 433 if (starget->hostdata) 434 kfree(starget->hostdata); 435 starget->hostdata = NULL; 436 } 437 438 /* 439 * OS entry point to allow host driver to alloc memory 440 * for each scsi target. Called once per device the bus scan. 441 * Return non-zero if allocation fails. 442 */ 443 static int 444 mptfc_target_alloc(struct scsi_target *starget) 445 { 446 VirtTarget *vtarget; 447 struct fc_rport *rport; 448 struct mptfc_rport_info *ri; 449 int rc; 450 451 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); 452 if (!vtarget) 453 return -ENOMEM; 454 starget->hostdata = vtarget; 455 456 rc = -ENODEV; 457 rport = starget_to_rport(starget); 458 if (rport) { 459 ri = *((struct mptfc_rport_info **)rport->dd_data); 460 if (ri) { /* better be! */ 461 vtarget->target_id = ri->pg0.CurrentTargetID; 462 vtarget->bus_id = ri->pg0.CurrentBus; 463 ri->starget = starget; 464 rc = 0; 465 } 466 } 467 if (rc != 0) { 468 kfree(vtarget); 469 starget->hostdata = NULL; 470 } 471 472 return rc; 473 } 474 475 /* 476 * OS entry point to allow host driver to alloc memory 477 * for each scsi device. Called once per device the bus scan. 478 * Return non-zero if allocation fails. 479 * Init memory once per LUN. 480 */ 481 static int 482 mptfc_slave_alloc(struct scsi_device *sdev) 483 { 484 MPT_SCSI_HOST *hd; 485 VirtTarget *vtarget; 486 VirtDevice *vdev; 487 struct scsi_target *starget; 488 struct fc_rport *rport; 489 490 491 starget = scsi_target(sdev); 492 rport = starget_to_rport(starget); 493 494 if (!rport || fc_remote_port_chkready(rport)) 495 return -ENXIO; 496 497 hd = (MPT_SCSI_HOST *)sdev->host->hostdata; 498 499 vdev = kzalloc(sizeof(VirtDevice), GFP_KERNEL); 500 if (!vdev) { 501 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", 502 hd->ioc->name, sizeof(VirtDevice)); 503 return -ENOMEM; 504 } 505 506 507 sdev->hostdata = vdev; 508 vtarget = starget->hostdata; 509 510 if (vtarget->num_luns == 0) { 511 vtarget->ioc_id = hd->ioc->id; 512 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES; 513 hd->Targets[sdev->id] = vtarget; 514 } 515 516 vdev->vtarget = vtarget; 517 vdev->lun = sdev->lun; 518 519 vtarget->num_luns++; 520 521 522 #ifdef DMPT_DEBUG_FC 523 { 524 u64 nn, pn; 525 struct mptfc_rport_info *ri; 526 ri = *((struct mptfc_rport_info **)rport->dd_data); 527 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 528 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 529 dfcprintk ((MYIOC_s_INFO_FMT 530 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, " 531 "CurrentTargetID %d, %x %llx %llx\n", 532 hd->ioc->name, 533 sdev->host->host_no, 534 vtarget->num_luns, 535 sdev->id, ri->pg0.CurrentTargetID, 536 ri->pg0.PortIdentifier, 537 (unsigned long long)pn, 538 (unsigned long long)nn)); 539 } 540 #endif 541 542 return 0; 543 } 544 545 static int 546 mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) 547 { 548 struct mptfc_rport_info *ri; 549 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); 550 int err; 551 552 err = fc_remote_port_chkready(rport); 553 if (unlikely(err)) { 554 SCpnt->result = err; 555 done(SCpnt); 556 return 0; 557 } 558 559 /* dd_data is null until finished adding target */ 560 ri = *((struct mptfc_rport_info **)rport->dd_data); 561 if (unlikely(!ri)) { 562 dfcprintk ((MYIOC_s_INFO_FMT 563 "mptfc_qcmd.%d: %d:%d, dd_data is null.\n", 564 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name, 565 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no, 566 SCpnt->device->id,SCpnt->device->lun)); 567 SCpnt->result = DID_IMM_RETRY << 16; 568 done(SCpnt); 569 return 0; 570 } 571 572 err = mptscsih_qcmd(SCpnt,done); 573 #ifdef DMPT_DEBUG_FC 574 if (unlikely(err)) { 575 dfcprintk ((MYIOC_s_INFO_FMT 576 "mptfc_qcmd.%d: %d:%d, mptscsih_qcmd returns non-zero, (%x).\n", 577 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->name, 578 ((MPT_SCSI_HOST *) SCpnt->device->host->hostdata)->ioc->sh->host_no, 579 SCpnt->device->id,SCpnt->device->lun,err)); 580 } 581 #endif 582 return err; 583 } 584 585 /* 586 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0. 587 * @ioc: Pointer to MPT_ADAPTER structure 588 * @portnum: IOC Port number 589 * 590 * Return: 0 for success 591 * -ENOMEM if no memory available 592 * -EPERM if not allowed due to ISR context 593 * -EAGAIN if no msg frames currently available 594 * -EFAULT for non-successful reply or no reply (timeout) 595 * -EINVAL portnum arg out of range (hardwired to two elements) 596 */ 597 static int 598 mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) 599 { 600 ConfigPageHeader_t hdr; 601 CONFIGPARMS cfg; 602 FCPortPage0_t *ppage0_alloc; 603 FCPortPage0_t *pp0dest; 604 dma_addr_t page0_dma; 605 int data_sz; 606 int copy_sz; 607 int rc; 608 int count = 400; 609 610 if (portnum > 1) 611 return -EINVAL; 612 613 /* Get FCPort Page 0 header */ 614 hdr.PageVersion = 0; 615 hdr.PageLength = 0; 616 hdr.PageNumber = 0; 617 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 618 cfg.cfghdr.hdr = &hdr; 619 cfg.physAddr = -1; 620 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 621 cfg.dir = 0; 622 cfg.pageAddr = portnum; 623 cfg.timeout = 0; 624 625 if ((rc = mpt_config(ioc, &cfg)) != 0) 626 return rc; 627 628 if (hdr.PageLength == 0) 629 return 0; 630 631 data_sz = hdr.PageLength * 4; 632 rc = -ENOMEM; 633 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma); 634 if (ppage0_alloc) { 635 636 try_again: 637 memset((u8 *)ppage0_alloc, 0, data_sz); 638 cfg.physAddr = page0_dma; 639 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 640 641 if ((rc = mpt_config(ioc, &cfg)) == 0) { 642 /* save the data */ 643 pp0dest = &ioc->fc_port_page0[portnum]; 644 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz); 645 memcpy(pp0dest, ppage0_alloc, copy_sz); 646 647 /* 648 * Normalize endianness of structure data, 649 * by byte-swapping all > 1 byte fields! 650 */ 651 pp0dest->Flags = le32_to_cpu(pp0dest->Flags); 652 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier); 653 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low); 654 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High); 655 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low); 656 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High); 657 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass); 658 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds); 659 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed); 660 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize); 661 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low); 662 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High); 663 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low); 664 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High); 665 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount); 666 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators); 667 668 /* 669 * if still doing discovery, 670 * hang loose a while until finished 671 */ 672 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) || 673 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE && 674 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) 675 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) { 676 if (count-- > 0) { 677 msleep(100); 678 goto try_again; 679 } 680 printk(MYIOC_s_INFO_FMT "Firmware discovery not" 681 " complete.\n", 682 ioc->name); 683 } 684 } 685 686 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma); 687 } 688 689 return rc; 690 } 691 692 static int 693 mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum) 694 { 695 ConfigPageHeader_t hdr; 696 CONFIGPARMS cfg; 697 int rc; 698 699 if (portnum > 1) 700 return -EINVAL; 701 702 if (!(ioc->fc_data.fc_port_page1[portnum].data)) 703 return -EINVAL; 704 705 /* get fcport page 1 header */ 706 hdr.PageVersion = 0; 707 hdr.PageLength = 0; 708 hdr.PageNumber = 1; 709 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 710 cfg.cfghdr.hdr = &hdr; 711 cfg.physAddr = -1; 712 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 713 cfg.dir = 0; 714 cfg.pageAddr = portnum; 715 cfg.timeout = 0; 716 717 if ((rc = mpt_config(ioc, &cfg)) != 0) 718 return rc; 719 720 if (hdr.PageLength == 0) 721 return -ENODEV; 722 723 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz) 724 return -EINVAL; 725 726 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma; 727 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 728 cfg.dir = 1; 729 730 rc = mpt_config(ioc, &cfg); 731 732 return rc; 733 } 734 735 static int 736 mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum) 737 { 738 ConfigPageHeader_t hdr; 739 CONFIGPARMS cfg; 740 FCPortPage1_t *page1_alloc; 741 dma_addr_t page1_dma; 742 int data_sz; 743 int rc; 744 745 if (portnum > 1) 746 return -EINVAL; 747 748 /* get fcport page 1 header */ 749 hdr.PageVersion = 0; 750 hdr.PageLength = 0; 751 hdr.PageNumber = 1; 752 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 753 cfg.cfghdr.hdr = &hdr; 754 cfg.physAddr = -1; 755 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 756 cfg.dir = 0; 757 cfg.pageAddr = portnum; 758 cfg.timeout = 0; 759 760 if ((rc = mpt_config(ioc, &cfg)) != 0) 761 return rc; 762 763 if (hdr.PageLength == 0) 764 return -ENODEV; 765 766 start_over: 767 768 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) { 769 data_sz = hdr.PageLength * 4; 770 if (data_sz < sizeof(FCPortPage1_t)) 771 data_sz = sizeof(FCPortPage1_t); 772 773 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev, 774 data_sz, 775 &page1_dma); 776 if (!page1_alloc) 777 return -ENOMEM; 778 } 779 else { 780 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data; 781 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma; 782 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz; 783 if (hdr.PageLength * 4 > data_sz) { 784 ioc->fc_data.fc_port_page1[portnum].data = NULL; 785 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 786 page1_alloc, page1_dma); 787 goto start_over; 788 } 789 } 790 791 memset(page1_alloc,0,data_sz); 792 793 cfg.physAddr = page1_dma; 794 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 795 796 if ((rc = mpt_config(ioc, &cfg)) == 0) { 797 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc; 798 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz; 799 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma; 800 } 801 else { 802 ioc->fc_data.fc_port_page1[portnum].data = NULL; 803 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 804 page1_alloc, page1_dma); 805 } 806 807 return rc; 808 } 809 810 static void 811 mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc) 812 { 813 int ii; 814 FCPortPage1_t *pp1; 815 816 #define MPTFC_FW_DEVICE_TIMEOUT (1) 817 #define MPTFC_FW_IO_PEND_TIMEOUT (1) 818 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY) 819 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS) 820 821 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 822 if (mptfc_GetFcPortPage1(ioc, ii) != 0) 823 continue; 824 pp1 = ioc->fc_data.fc_port_page1[ii].data; 825 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT) 826 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT) 827 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS) 828 && ((pp1->Flags & OFF_FLAGS) == 0)) 829 continue; 830 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT; 831 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT; 832 pp1->Flags &= ~OFF_FLAGS; 833 pp1->Flags |= ON_FLAGS; 834 mptfc_WriteFcPortPage1(ioc, ii); 835 } 836 } 837 838 839 static void 840 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum) 841 { 842 unsigned class = 0, cos = 0; 843 844 /* don't know what to do as only one scsi (fc) host was allocated */ 845 if (portnum != 0) 846 return; 847 848 class = ioc->fc_port_page0[portnum].SupportedServiceClass; 849 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1) 850 cos |= FC_COS_CLASS1; 851 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2) 852 cos |= FC_COS_CLASS2; 853 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3) 854 cos |= FC_COS_CLASS3; 855 856 fc_host_node_name(ioc->sh) = 857 (u64)ioc->fc_port_page0[portnum].WWNN.High << 32 858 | (u64)ioc->fc_port_page0[portnum].WWNN.Low; 859 860 fc_host_port_name(ioc->sh) = 861 (u64)ioc->fc_port_page0[portnum].WWPN.High << 32 862 | (u64)ioc->fc_port_page0[portnum].WWPN.Low; 863 864 fc_host_port_id(ioc->sh) = ioc->fc_port_page0[portnum].PortIdentifier; 865 866 fc_host_supported_classes(ioc->sh) = cos; 867 868 fc_host_tgtid_bind_type(ioc->sh) = FC_TGTID_BIND_BY_WWPN; 869 } 870 871 static void 872 mptfc_setup_reset(void *arg) 873 { 874 MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg; 875 u64 pn; 876 struct mptfc_rport_info *ri; 877 878 /* reset about to happen, delete (block) all rports */ 879 list_for_each_entry(ri, &ioc->fc_rports, list) { 880 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 881 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED; 882 fc_remote_port_delete(ri->rport); /* won't sleep */ 883 ri->rport = NULL; 884 885 pn = (u64)ri->pg0.WWPN.High << 32 | 886 (u64)ri->pg0.WWPN.Low; 887 dfcprintk ((MYIOC_s_INFO_FMT 888 "mptfc_setup_reset.%d: %llx deleted\n", 889 ioc->name, 890 ioc->sh->host_no, 891 (unsigned long long)pn)); 892 } 893 } 894 } 895 896 static void 897 mptfc_rescan_devices(void *arg) 898 { 899 MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg; 900 int ii; 901 int work_to_do; 902 u64 pn; 903 unsigned long flags; 904 struct mptfc_rport_info *ri; 905 906 do { 907 /* start by tagging all ports as missing */ 908 list_for_each_entry(ri, &ioc->fc_rports, list) { 909 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 910 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; 911 } 912 } 913 914 /* 915 * now rescan devices known to adapter, 916 * will reregister existing rports 917 */ 918 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 919 (void) mptfc_GetFcPortPage0(ioc, ii); 920 mptfc_init_host_attr(ioc,ii); /* refresh */ 921 mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev); 922 } 923 924 /* delete devices still missing */ 925 list_for_each_entry(ri, &ioc->fc_rports, list) { 926 /* if newly missing, delete it */ 927 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { 928 929 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| 930 MPT_RPORT_INFO_FLAGS_MISSING); 931 fc_remote_port_delete(ri->rport); /* won't sleep */ 932 ri->rport = NULL; 933 934 pn = (u64)ri->pg0.WWPN.High << 32 | 935 (u64)ri->pg0.WWPN.Low; 936 dfcprintk ((MYIOC_s_INFO_FMT 937 "mptfc_rescan.%d: %llx deleted\n", 938 ioc->name, 939 ioc->sh->host_no, 940 (unsigned long long)pn)); 941 } 942 } 943 944 /* 945 * allow multiple passes as target state 946 * might have changed during scan 947 */ 948 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 949 if (ioc->fc_rescan_work_count > 2) /* only need one more */ 950 ioc->fc_rescan_work_count = 2; 951 work_to_do = --ioc->fc_rescan_work_count; 952 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 953 } while (work_to_do); 954 } 955 956 static int 957 mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) 958 { 959 struct Scsi_Host *sh; 960 MPT_SCSI_HOST *hd; 961 MPT_ADAPTER *ioc; 962 unsigned long flags; 963 int ii; 964 int numSGE = 0; 965 int scale; 966 int ioc_cap; 967 int error=0; 968 int r; 969 970 if ((r = mpt_attach(pdev,id)) != 0) 971 return r; 972 973 ioc = pci_get_drvdata(pdev); 974 ioc->DoneCtx = mptfcDoneCtx; 975 ioc->TaskCtx = mptfcTaskCtx; 976 ioc->InternalCtx = mptfcInternalCtx; 977 978 /* Added sanity check on readiness of the MPT adapter. 979 */ 980 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 981 printk(MYIOC_s_WARN_FMT 982 "Skipping because it's not operational!\n", 983 ioc->name); 984 error = -ENODEV; 985 goto out_mptfc_probe; 986 } 987 988 if (!ioc->active) { 989 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 990 ioc->name); 991 error = -ENODEV; 992 goto out_mptfc_probe; 993 } 994 995 /* Sanity check - ensure at least 1 port is INITIATOR capable 996 */ 997 ioc_cap = 0; 998 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 999 if (ioc->pfacts[ii].ProtocolFlags & 1000 MPI_PORTFACTS_PROTOCOL_INITIATOR) 1001 ioc_cap ++; 1002 } 1003 1004 if (!ioc_cap) { 1005 printk(MYIOC_s_WARN_FMT 1006 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", 1007 ioc->name, ioc); 1008 return -ENODEV; 1009 } 1010 1011 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST)); 1012 1013 if (!sh) { 1014 printk(MYIOC_s_WARN_FMT 1015 "Unable to register controller with SCSI subsystem\n", 1016 ioc->name); 1017 error = -1; 1018 goto out_mptfc_probe; 1019 } 1020 1021 spin_lock_init(&ioc->fc_rescan_work_lock); 1022 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices,(void *)ioc); 1023 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset, (void *)ioc); 1024 1025 spin_lock_irqsave(&ioc->FreeQlock, flags); 1026 1027 /* Attach the SCSI Host to the IOC structure 1028 */ 1029 ioc->sh = sh; 1030 1031 sh->io_port = 0; 1032 sh->n_io_port = 0; 1033 sh->irq = 0; 1034 1035 /* set 16 byte cdb's */ 1036 sh->max_cmd_len = 16; 1037 1038 sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255; 1039 1040 sh->max_lun = MPT_LAST_LUN + 1; 1041 sh->max_channel = 0; 1042 sh->this_id = ioc->pfacts[0].PortSCSIID; 1043 1044 /* Required entry. 1045 */ 1046 sh->unique_id = ioc->id; 1047 1048 /* Verify that we won't exceed the maximum 1049 * number of chain buffers 1050 * We can optimize: ZZ = req_sz/sizeof(SGE) 1051 * For 32bit SGE's: 1052 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 1053 * + (req_sz - 64)/sizeof(SGE) 1054 * A slightly different algorithm is required for 1055 * 64bit SGEs. 1056 */ 1057 scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32)); 1058 if (sizeof(dma_addr_t) == sizeof(u64)) { 1059 numSGE = (scale - 1) * 1060 (ioc->facts.MaxChainDepth-1) + scale + 1061 (ioc->req_sz - 60) / (sizeof(dma_addr_t) + 1062 sizeof(u32)); 1063 } else { 1064 numSGE = 1 + (scale - 1) * 1065 (ioc->facts.MaxChainDepth-1) + scale + 1066 (ioc->req_sz - 64) / (sizeof(dma_addr_t) + 1067 sizeof(u32)); 1068 } 1069 1070 if (numSGE < sh->sg_tablesize) { 1071 /* Reset this value */ 1072 dprintk((MYIOC_s_INFO_FMT 1073 "Resetting sg_tablesize to %d from %d\n", 1074 ioc->name, numSGE, sh->sg_tablesize)); 1075 sh->sg_tablesize = numSGE; 1076 } 1077 1078 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1079 1080 hd = (MPT_SCSI_HOST *) sh->hostdata; 1081 hd->ioc = ioc; 1082 1083 /* SCSI needs scsi_cmnd lookup table! 1084 * (with size equal to req_depth*PtrSz!) 1085 */ 1086 hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); 1087 if (!hd->ScsiLookup) { 1088 error = -ENOMEM; 1089 goto out_mptfc_probe; 1090 } 1091 1092 dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p\n", 1093 ioc->name, hd->ScsiLookup)); 1094 1095 /* Allocate memory for the device structures. 1096 * A non-Null pointer at an offset 1097 * indicates a device exists. 1098 * max_id = 1 + maximum id (hosts.h) 1099 */ 1100 hd->Targets = kcalloc(sh->max_id, sizeof(void *), GFP_ATOMIC); 1101 if (!hd->Targets) { 1102 error = -ENOMEM; 1103 goto out_mptfc_probe; 1104 } 1105 1106 dprintk((KERN_INFO " vdev @ %p\n", hd->Targets)); 1107 1108 /* Clear the TM flags 1109 */ 1110 hd->tmPending = 0; 1111 hd->tmState = TM_STATE_NONE; 1112 hd->resetPending = 0; 1113 hd->abortSCpnt = NULL; 1114 1115 /* Clear the pointer used to store 1116 * single-threaded commands, i.e., those 1117 * issued during a bus scan, dv and 1118 * configuration pages. 1119 */ 1120 hd->cmdPtr = NULL; 1121 1122 /* Initialize this SCSI Hosts' timers 1123 * To use, set the timer expires field 1124 * and add_timer 1125 */ 1126 init_timer(&hd->timer); 1127 hd->timer.data = (unsigned long) hd; 1128 hd->timer.function = mptscsih_timer_expired; 1129 1130 init_waitqueue_head(&hd->scandv_waitq); 1131 hd->scandv_wait_done = 0; 1132 hd->last_queue_full = 0; 1133 1134 sh->transportt = mptfc_transport_template; 1135 error = scsi_add_host (sh, &ioc->pcidev->dev); 1136 if(error) { 1137 dprintk((KERN_ERR MYNAM 1138 "scsi_add_host failed\n")); 1139 goto out_mptfc_probe; 1140 } 1141 1142 /* initialize workqueue */ 1143 1144 snprintf(ioc->fc_rescan_work_q_name, KOBJ_NAME_LEN, "mptfc_wq_%d", 1145 sh->host_no); 1146 ioc->fc_rescan_work_q = 1147 create_singlethread_workqueue(ioc->fc_rescan_work_q_name); 1148 if (!ioc->fc_rescan_work_q) 1149 goto out_mptfc_probe; 1150 1151 /* 1152 * Pre-fetch FC port WWN and stuff... 1153 * (FCPortPage0_t stuff) 1154 */ 1155 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1156 (void) mptfc_GetFcPortPage0(ioc, ii); 1157 } 1158 mptfc_SetFcPortPage1_defaults(ioc); 1159 1160 /* 1161 * scan for rports - 1162 * by doing it via the workqueue, some locking is eliminated 1163 */ 1164 1165 ioc->fc_rescan_work_count = 1; 1166 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); 1167 flush_workqueue(ioc->fc_rescan_work_q); 1168 1169 return 0; 1170 1171 out_mptfc_probe: 1172 1173 mptscsih_remove(pdev); 1174 return error; 1175 } 1176 1177 static struct pci_driver mptfc_driver = { 1178 .name = "mptfc", 1179 .id_table = mptfc_pci_table, 1180 .probe = mptfc_probe, 1181 .remove = __devexit_p(mptfc_remove), 1182 .shutdown = mptscsih_shutdown, 1183 #ifdef CONFIG_PM 1184 .suspend = mptscsih_suspend, 1185 .resume = mptscsih_resume, 1186 #endif 1187 }; 1188 1189 static int 1190 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 1191 { 1192 MPT_SCSI_HOST *hd; 1193 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 1194 unsigned long flags; 1195 int rc=1; 1196 1197 devtverboseprintk((MYIOC_s_INFO_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n", 1198 ioc->name, event)); 1199 1200 if (ioc->sh == NULL || 1201 ((hd = (MPT_SCSI_HOST *)ioc->sh->hostdata) == NULL)) 1202 return 1; 1203 1204 switch (event) { 1205 case MPI_EVENT_RESCAN: 1206 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1207 if (ioc->fc_rescan_work_q) { 1208 if (ioc->fc_rescan_work_count++ == 0) { 1209 queue_work(ioc->fc_rescan_work_q, 1210 &ioc->fc_rescan_work); 1211 } 1212 } 1213 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1214 break; 1215 default: 1216 rc = mptscsih_event_process(ioc,pEvReply); 1217 break; 1218 } 1219 return rc; 1220 } 1221 1222 static int 1223 mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 1224 { 1225 int rc; 1226 unsigned long flags; 1227 1228 rc = mptscsih_ioc_reset(ioc,reset_phase); 1229 if (rc == 0) 1230 return rc; 1231 1232 1233 dtmprintk((KERN_WARNING MYNAM 1234 ": IOC %s_reset routed to FC host driver!\n", 1235 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( 1236 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); 1237 1238 if (reset_phase == MPT_IOC_SETUP_RESET) { 1239 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1240 if (ioc->fc_rescan_work_q) { 1241 queue_work(ioc->fc_rescan_work_q, 1242 &ioc->fc_setup_reset_work); 1243 } 1244 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1245 } 1246 1247 else if (reset_phase == MPT_IOC_PRE_RESET) { 1248 } 1249 1250 else { /* MPT_IOC_POST_RESET */ 1251 mptfc_SetFcPortPage1_defaults(ioc); 1252 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1253 if (ioc->fc_rescan_work_q) { 1254 if (ioc->fc_rescan_work_count++ == 0) { 1255 queue_work(ioc->fc_rescan_work_q, 1256 &ioc->fc_rescan_work); 1257 } 1258 } 1259 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1260 } 1261 return 1; 1262 } 1263 1264 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1265 /** 1266 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with 1267 * linux scsi mid-layer. 1268 * 1269 * Returns 0 for success, non-zero for failure. 1270 */ 1271 static int __init 1272 mptfc_init(void) 1273 { 1274 int error; 1275 1276 show_mptmod_ver(my_NAME, my_VERSION); 1277 1278 /* sanity check module parameters */ 1279 if (mptfc_dev_loss_tmo <= 0) 1280 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; 1281 1282 mptfc_transport_template = 1283 fc_attach_transport(&mptfc_transport_functions); 1284 1285 if (!mptfc_transport_template) 1286 return -ENODEV; 1287 1288 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER); 1289 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER); 1290 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER); 1291 1292 if (mpt_event_register(mptfcDoneCtx, mptfc_event_process) == 0) { 1293 devtverboseprintk((KERN_INFO MYNAM 1294 ": Registered for IOC event notifications\n")); 1295 } 1296 1297 if (mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset) == 0) { 1298 dprintk((KERN_INFO MYNAM 1299 ": Registered for IOC reset notifications\n")); 1300 } 1301 1302 error = pci_register_driver(&mptfc_driver); 1303 if (error) 1304 fc_release_transport(mptfc_transport_template); 1305 1306 return error; 1307 } 1308 1309 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1310 /** 1311 * mptfc_remove - Removed fc infrastructure for devices 1312 * @pdev: Pointer to pci_dev structure 1313 * 1314 */ 1315 static void __devexit 1316 mptfc_remove(struct pci_dev *pdev) 1317 { 1318 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1319 struct mptfc_rport_info *p, *n; 1320 struct workqueue_struct *work_q; 1321 unsigned long flags; 1322 int ii; 1323 1324 /* destroy workqueue */ 1325 if ((work_q=ioc->fc_rescan_work_q)) { 1326 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1327 ioc->fc_rescan_work_q = NULL; 1328 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1329 destroy_workqueue(work_q); 1330 } 1331 1332 fc_remove_host(ioc->sh); 1333 1334 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) { 1335 list_del(&p->list); 1336 kfree(p); 1337 } 1338 1339 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 1340 if (ioc->fc_data.fc_port_page1[ii].data) { 1341 pci_free_consistent(ioc->pcidev, 1342 ioc->fc_data.fc_port_page1[ii].pg_sz, 1343 (u8 *) ioc->fc_data.fc_port_page1[ii].data, 1344 ioc->fc_data.fc_port_page1[ii].dma); 1345 ioc->fc_data.fc_port_page1[ii].data = NULL; 1346 } 1347 } 1348 1349 mptscsih_remove(pdev); 1350 } 1351 1352 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1353 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1354 /** 1355 * mptfc_exit - Unregisters MPT adapter(s) 1356 * 1357 */ 1358 static void __exit 1359 mptfc_exit(void) 1360 { 1361 pci_unregister_driver(&mptfc_driver); 1362 fc_release_transport(mptfc_transport_template); 1363 1364 mpt_reset_deregister(mptfcDoneCtx); 1365 dprintk((KERN_INFO MYNAM 1366 ": Deregistered for IOC reset notifications\n")); 1367 1368 mpt_event_deregister(mptfcDoneCtx); 1369 dprintk((KERN_INFO MYNAM 1370 ": Deregistered for IOC event notifications\n")); 1371 1372 mpt_deregister(mptfcInternalCtx); 1373 mpt_deregister(mptfcTaskCtx); 1374 mpt_deregister(mptfcDoneCtx); 1375 } 1376 1377 module_init(mptfc_init); 1378 module_exit(mptfc_exit); 1379