1 /* 2 * linux/drivers/message/fusion/mptfc.c 3 * For use with LSI PCI chip/adapter(s) 4 * running LSI Fusion MPT (Message Passing Technology) firmware. 5 * 6 * Copyright (c) 1999-2008 LSI Corporation 7 * (mailto:DL-MPTFusionLinux@lsi.com) 8 * 9 */ 10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 11 /* 12 This program is free software; you can redistribute it and/or modify 13 it under the terms of the GNU General Public License as published by 14 the Free Software Foundation; version 2 of the License. 15 16 This program is distributed in the hope that it will be useful, 17 but WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 GNU General Public License for more details. 20 21 NO WARRANTY 22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR 23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT 24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, 25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is 26 solely responsible for determining the appropriateness of using and 27 distributing the Program and assumes all risks associated with its 28 exercise of rights under this Agreement, including but not limited to 29 the risks and costs of program errors, damage to or loss of data, 30 programs or equipment, and unavailability or interruption of operations. 31 32 DISCLAIMER OF LIABILITY 33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY 34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND 36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED 39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES 40 41 You should have received a copy of the GNU General Public License 42 along with this program; if not, write to the Free Software 43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 44 */ 45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 46 #include <linux/module.h> 47 #include <linux/kernel.h> 48 #include <linux/init.h> 49 #include <linux/errno.h> 50 #include <linux/kdev_t.h> 51 #include <linux/blkdev.h> 52 #include <linux/delay.h> /* for mdelay */ 53 #include <linux/interrupt.h> /* needed for in_interrupt() proto */ 54 #include <linux/reboot.h> /* notifier code */ 55 #include <linux/workqueue.h> 56 #include <linux/sort.h> 57 58 #include <scsi/scsi.h> 59 #include <scsi/scsi_cmnd.h> 60 #include <scsi/scsi_device.h> 61 #include <scsi/scsi_host.h> 62 #include <scsi/scsi_tcq.h> 63 #include <scsi/scsi_transport_fc.h> 64 65 #include "mptbase.h" 66 #include "mptscsih.h" 67 68 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 69 #define my_NAME "Fusion MPT FC Host driver" 70 #define my_VERSION MPT_LINUX_VERSION_COMMON 71 #define MYNAM "mptfc" 72 73 MODULE_AUTHOR(MODULEAUTHOR); 74 MODULE_DESCRIPTION(my_NAME); 75 MODULE_LICENSE("GPL"); 76 MODULE_VERSION(my_VERSION); 77 78 /* Command line args */ 79 #define MPTFC_DEV_LOSS_TMO (60) 80 static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */ 81 module_param(mptfc_dev_loss_tmo, int, 0); 82 MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the " 83 " transport to wait for an rport to " 84 " return following a device loss event." 85 " Default=60."); 86 87 /* scsi-mid layer global parmeter is max_report_luns, which is 511 */ 88 #define MPTFC_MAX_LUN (16895) 89 static int max_lun = MPTFC_MAX_LUN; 90 module_param(max_lun, int, 0); 91 MODULE_PARM_DESC(max_lun, " max lun, default=16895 "); 92 93 static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS; 94 static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS; 95 static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS; 96 97 static int mptfc_target_alloc(struct scsi_target *starget); 98 static int mptfc_slave_alloc(struct scsi_device *sdev); 99 static int mptfc_qcmd(struct scsi_cmnd *SCpnt, 100 void (*done)(struct scsi_cmnd *)); 101 static void mptfc_target_destroy(struct scsi_target *starget); 102 static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout); 103 static void __devexit mptfc_remove(struct pci_dev *pdev); 104 static int mptfc_abort(struct scsi_cmnd *SCpnt); 105 static int mptfc_dev_reset(struct scsi_cmnd *SCpnt); 106 static int mptfc_bus_reset(struct scsi_cmnd *SCpnt); 107 static int mptfc_host_reset(struct scsi_cmnd *SCpnt); 108 109 static struct scsi_host_template mptfc_driver_template = { 110 .module = THIS_MODULE, 111 .proc_name = "mptfc", 112 .proc_info = mptscsih_proc_info, 113 .name = "MPT FC Host", 114 .info = mptscsih_info, 115 .queuecommand = mptfc_qcmd, 116 .target_alloc = mptfc_target_alloc, 117 .slave_alloc = mptfc_slave_alloc, 118 .slave_configure = mptscsih_slave_configure, 119 .target_destroy = mptfc_target_destroy, 120 .slave_destroy = mptscsih_slave_destroy, 121 .change_queue_depth = mptscsih_change_queue_depth, 122 .eh_abort_handler = mptfc_abort, 123 .eh_device_reset_handler = mptfc_dev_reset, 124 .eh_bus_reset_handler = mptfc_bus_reset, 125 .eh_host_reset_handler = mptfc_host_reset, 126 .bios_param = mptscsih_bios_param, 127 .can_queue = MPT_FC_CAN_QUEUE, 128 .this_id = -1, 129 .sg_tablesize = MPT_SCSI_SG_DEPTH, 130 .max_sectors = 8192, 131 .cmd_per_lun = 7, 132 .use_clustering = ENABLE_CLUSTERING, 133 .shost_attrs = mptscsih_host_attrs, 134 }; 135 136 /**************************************************************************** 137 * Supported hardware 138 */ 139 140 static struct pci_device_id mptfc_pci_table[] = { 141 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909, 142 PCI_ANY_ID, PCI_ANY_ID }, 143 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919, 144 PCI_ANY_ID, PCI_ANY_ID }, 145 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929, 146 PCI_ANY_ID, PCI_ANY_ID }, 147 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X, 148 PCI_ANY_ID, PCI_ANY_ID }, 149 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X, 150 PCI_ANY_ID, PCI_ANY_ID }, 151 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X, 152 PCI_ANY_ID, PCI_ANY_ID }, 153 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X, 154 PCI_ANY_ID, PCI_ANY_ID }, 155 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E, 156 PCI_ANY_ID, PCI_ANY_ID }, 157 { PCI_VENDOR_ID_BROCADE, MPI_MANUFACTPAGE_DEVICEID_FC949E, 158 PCI_ANY_ID, PCI_ANY_ID }, 159 {0} /* Terminating entry */ 160 }; 161 MODULE_DEVICE_TABLE(pci, mptfc_pci_table); 162 163 static struct scsi_transport_template *mptfc_transport_template = NULL; 164 165 static struct fc_function_template mptfc_transport_functions = { 166 .dd_fcrport_size = 8, 167 .show_host_node_name = 1, 168 .show_host_port_name = 1, 169 .show_host_supported_classes = 1, 170 .show_host_port_id = 1, 171 .show_rport_supported_classes = 1, 172 .show_starget_node_name = 1, 173 .show_starget_port_name = 1, 174 .show_starget_port_id = 1, 175 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo, 176 .show_rport_dev_loss_tmo = 1, 177 .show_host_supported_speeds = 1, 178 .show_host_maxframe_size = 1, 179 .show_host_speed = 1, 180 .show_host_fabric_name = 1, 181 .show_host_port_type = 1, 182 .show_host_port_state = 1, 183 .show_host_symbolic_name = 1, 184 }; 185 186 static int 187 mptfc_block_error_handler(struct scsi_cmnd *SCpnt, 188 int (*func)(struct scsi_cmnd *SCpnt), 189 const char *caller) 190 { 191 MPT_SCSI_HOST *hd; 192 struct scsi_device *sdev = SCpnt->device; 193 struct Scsi_Host *shost = sdev->host; 194 struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); 195 unsigned long flags; 196 int ready; 197 MPT_ADAPTER *ioc; 198 199 hd = shost_priv(SCpnt->device->host); 200 ioc = hd->ioc; 201 spin_lock_irqsave(shost->host_lock, flags); 202 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY) { 203 spin_unlock_irqrestore(shost->host_lock, flags); 204 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 205 "mptfc_block_error_handler.%d: %d:%d, port status is " 206 "DID_IMM_RETRY, deferring %s recovery.\n", 207 ioc->name, ioc->sh->host_no, 208 SCpnt->device->id, SCpnt->device->lun, caller)); 209 msleep(1000); 210 spin_lock_irqsave(shost->host_lock, flags); 211 } 212 spin_unlock_irqrestore(shost->host_lock, flags); 213 214 if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata) { 215 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 216 "%s.%d: %d:%d, failing recovery, " 217 "port state %d, vdevice %p.\n", caller, 218 ioc->name, ioc->sh->host_no, 219 SCpnt->device->id, SCpnt->device->lun, ready, 220 SCpnt->device->hostdata)); 221 return FAILED; 222 } 223 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 224 "%s.%d: %d:%d, executing recovery.\n", caller, 225 ioc->name, ioc->sh->host_no, 226 SCpnt->device->id, SCpnt->device->lun)); 227 return (*func)(SCpnt); 228 } 229 230 static int 231 mptfc_abort(struct scsi_cmnd *SCpnt) 232 { 233 return 234 mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__); 235 } 236 237 static int 238 mptfc_dev_reset(struct scsi_cmnd *SCpnt) 239 { 240 return 241 mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__); 242 } 243 244 static int 245 mptfc_bus_reset(struct scsi_cmnd *SCpnt) 246 { 247 return 248 mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__); 249 } 250 251 static int 252 mptfc_host_reset(struct scsi_cmnd *SCpnt) 253 { 254 return 255 mptfc_block_error_handler(SCpnt, mptscsih_host_reset, __func__); 256 } 257 258 static void 259 mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 260 { 261 if (timeout > 0) 262 rport->dev_loss_tmo = timeout; 263 else 264 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 265 } 266 267 static int 268 mptfc_FcDevPage0_cmp_func(const void *a, const void *b) 269 { 270 FCDevicePage0_t **aa = (FCDevicePage0_t **)a; 271 FCDevicePage0_t **bb = (FCDevicePage0_t **)b; 272 273 if ((*aa)->CurrentBus == (*bb)->CurrentBus) { 274 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID) 275 return 0; 276 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID) 277 return -1; 278 return 1; 279 } 280 if ((*aa)->CurrentBus < (*bb)->CurrentBus) 281 return -1; 282 return 1; 283 } 284 285 static int 286 mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port, 287 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg)) 288 { 289 ConfigPageHeader_t hdr; 290 CONFIGPARMS cfg; 291 FCDevicePage0_t *ppage0_alloc, *fc; 292 dma_addr_t page0_dma; 293 int data_sz; 294 int ii; 295 296 FCDevicePage0_t *p0_array=NULL, *p_p0; 297 FCDevicePage0_t **pp0_array=NULL, **p_pp0; 298 299 int rc = -ENOMEM; 300 U32 port_id = 0xffffff; 301 int num_targ = 0; 302 int max_bus = ioc->facts.MaxBuses; 303 int max_targ; 304 305 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices; 306 307 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ; 308 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL); 309 if (!p0_array) 310 goto out; 311 312 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ; 313 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL); 314 if (!pp0_array) 315 goto out; 316 317 do { 318 /* Get FC Device Page 0 header */ 319 hdr.PageVersion = 0; 320 hdr.PageLength = 0; 321 hdr.PageNumber = 0; 322 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE; 323 cfg.cfghdr.hdr = &hdr; 324 cfg.physAddr = -1; 325 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 326 cfg.dir = 0; 327 cfg.pageAddr = port_id; 328 cfg.timeout = 0; 329 330 if ((rc = mpt_config(ioc, &cfg)) != 0) 331 break; 332 333 if (hdr.PageLength <= 0) 334 break; 335 336 data_sz = hdr.PageLength * 4; 337 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, 338 &page0_dma); 339 rc = -ENOMEM; 340 if (!ppage0_alloc) 341 break; 342 343 cfg.physAddr = page0_dma; 344 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 345 346 if ((rc = mpt_config(ioc, &cfg)) == 0) { 347 ppage0_alloc->PortIdentifier = 348 le32_to_cpu(ppage0_alloc->PortIdentifier); 349 350 ppage0_alloc->WWNN.Low = 351 le32_to_cpu(ppage0_alloc->WWNN.Low); 352 353 ppage0_alloc->WWNN.High = 354 le32_to_cpu(ppage0_alloc->WWNN.High); 355 356 ppage0_alloc->WWPN.Low = 357 le32_to_cpu(ppage0_alloc->WWPN.Low); 358 359 ppage0_alloc->WWPN.High = 360 le32_to_cpu(ppage0_alloc->WWPN.High); 361 362 ppage0_alloc->BBCredit = 363 le16_to_cpu(ppage0_alloc->BBCredit); 364 365 ppage0_alloc->MaxRxFrameSize = 366 le16_to_cpu(ppage0_alloc->MaxRxFrameSize); 367 368 port_id = ppage0_alloc->PortIdentifier; 369 num_targ++; 370 *p_p0 = *ppage0_alloc; /* save data */ 371 *p_pp0++ = p_p0++; /* save addr */ 372 } 373 pci_free_consistent(ioc->pcidev, data_sz, 374 (u8 *) ppage0_alloc, page0_dma); 375 if (rc != 0) 376 break; 377 378 } while (port_id <= 0xff0000); 379 380 if (num_targ) { 381 /* sort array */ 382 if (num_targ > 1) 383 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *), 384 mptfc_FcDevPage0_cmp_func, NULL); 385 /* call caller's func for each targ */ 386 for (ii = 0; ii < num_targ; ii++) { 387 fc = *(pp0_array+ii); 388 func(ioc, ioc_port, fc); 389 } 390 } 391 392 out: 393 kfree(pp0_array); 394 kfree(p0_array); 395 return rc; 396 } 397 398 static int 399 mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid) 400 { 401 /* not currently usable */ 402 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID | 403 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID)) 404 return -1; 405 406 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID)) 407 return -1; 408 409 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET)) 410 return -1; 411 412 /* 413 * board data structure already normalized to platform endianness 414 * shifted to avoid unaligned access on 64 bit architecture 415 */ 416 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low; 417 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low; 418 rid->port_id = pg0->PortIdentifier; 419 rid->roles = FC_RPORT_ROLE_UNKNOWN; 420 421 return 0; 422 } 423 424 static void 425 mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0) 426 { 427 struct fc_rport_identifiers rport_ids; 428 struct fc_rport *rport; 429 struct mptfc_rport_info *ri; 430 int new_ri = 1; 431 u64 pn, nn; 432 VirtTarget *vtarget; 433 u32 roles = FC_RPORT_ROLE_UNKNOWN; 434 435 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0) 436 return; 437 438 roles |= FC_RPORT_ROLE_FCP_TARGET; 439 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR) 440 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 441 442 /* scan list looking for a match */ 443 list_for_each_entry(ri, &ioc->fc_rports, list) { 444 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 445 if (pn == rport_ids.port_name) { /* match */ 446 list_move_tail(&ri->list, &ioc->fc_rports); 447 new_ri = 0; 448 break; 449 } 450 } 451 if (new_ri) { /* allocate one */ 452 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL); 453 if (!ri) 454 return; 455 list_add_tail(&ri->list, &ioc->fc_rports); 456 } 457 458 ri->pg0 = *pg0; /* add/update pg0 data */ 459 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING; 460 461 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */ 462 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) { 463 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED; 464 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids); 465 if (rport) { 466 ri->rport = rport; 467 if (new_ri) /* may have been reset by user */ 468 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 469 /* 470 * if already mapped, remap here. If not mapped, 471 * target_alloc will allocate vtarget and map, 472 * slave_alloc will fill in vdevice from vtarget. 473 */ 474 if (ri->starget) { 475 vtarget = ri->starget->hostdata; 476 if (vtarget) { 477 vtarget->id = pg0->CurrentTargetID; 478 vtarget->channel = pg0->CurrentBus; 479 } 480 } 481 *((struct mptfc_rport_info **)rport->dd_data) = ri; 482 /* scan will be scheduled once rport becomes a target */ 483 fc_remote_port_rolechg(rport,roles); 484 485 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 486 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 487 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 488 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, " 489 "rport tid %d, tmo %d\n", 490 ioc->name, 491 ioc->sh->host_no, 492 pg0->PortIdentifier, 493 (unsigned long long)nn, 494 (unsigned long long)pn, 495 pg0->CurrentTargetID, 496 ri->rport->scsi_target_id, 497 ri->rport->dev_loss_tmo)); 498 } else { 499 list_del(&ri->list); 500 kfree(ri); 501 ri = NULL; 502 } 503 } 504 } 505 506 /* 507 * OS entry point to allow for host driver to free allocated memory 508 * Called if no device present or device being unloaded 509 */ 510 static void 511 mptfc_target_destroy(struct scsi_target *starget) 512 { 513 struct fc_rport *rport; 514 struct mptfc_rport_info *ri; 515 516 rport = starget_to_rport(starget); 517 if (rport) { 518 ri = *((struct mptfc_rport_info **)rport->dd_data); 519 if (ri) /* better be! */ 520 ri->starget = NULL; 521 } 522 if (starget->hostdata) 523 kfree(starget->hostdata); 524 starget->hostdata = NULL; 525 } 526 527 /* 528 * OS entry point to allow host driver to alloc memory 529 * for each scsi target. Called once per device the bus scan. 530 * Return non-zero if allocation fails. 531 */ 532 static int 533 mptfc_target_alloc(struct scsi_target *starget) 534 { 535 VirtTarget *vtarget; 536 struct fc_rport *rport; 537 struct mptfc_rport_info *ri; 538 int rc; 539 540 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); 541 if (!vtarget) 542 return -ENOMEM; 543 starget->hostdata = vtarget; 544 545 rc = -ENODEV; 546 rport = starget_to_rport(starget); 547 if (rport) { 548 ri = *((struct mptfc_rport_info **)rport->dd_data); 549 if (ri) { /* better be! */ 550 vtarget->id = ri->pg0.CurrentTargetID; 551 vtarget->channel = ri->pg0.CurrentBus; 552 ri->starget = starget; 553 rc = 0; 554 } 555 } 556 if (rc != 0) { 557 kfree(vtarget); 558 starget->hostdata = NULL; 559 } 560 561 return rc; 562 } 563 /* 564 * mptfc_dump_lun_info 565 * @ioc 566 * @rport 567 * @sdev 568 * 569 */ 570 static void 571 mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev, 572 VirtTarget *vtarget) 573 { 574 u64 nn, pn; 575 struct mptfc_rport_info *ri; 576 577 ri = *((struct mptfc_rport_info **)rport->dd_data); 578 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 579 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 580 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 581 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, " 582 "CurrentTargetID %d, %x %llx %llx\n", 583 ioc->name, 584 sdev->host->host_no, 585 vtarget->num_luns, 586 sdev->id, ri->pg0.CurrentTargetID, 587 ri->pg0.PortIdentifier, 588 (unsigned long long)pn, 589 (unsigned long long)nn)); 590 } 591 592 593 /* 594 * OS entry point to allow host driver to alloc memory 595 * for each scsi device. Called once per device the bus scan. 596 * Return non-zero if allocation fails. 597 * Init memory once per LUN. 598 */ 599 static int 600 mptfc_slave_alloc(struct scsi_device *sdev) 601 { 602 MPT_SCSI_HOST *hd; 603 VirtTarget *vtarget; 604 VirtDevice *vdevice; 605 struct scsi_target *starget; 606 struct fc_rport *rport; 607 MPT_ADAPTER *ioc; 608 609 starget = scsi_target(sdev); 610 rport = starget_to_rport(starget); 611 612 if (!rport || fc_remote_port_chkready(rport)) 613 return -ENXIO; 614 615 hd = shost_priv(sdev->host); 616 ioc = hd->ioc; 617 618 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL); 619 if (!vdevice) { 620 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", 621 ioc->name, sizeof(VirtDevice)); 622 return -ENOMEM; 623 } 624 625 626 sdev->hostdata = vdevice; 627 vtarget = starget->hostdata; 628 629 if (vtarget->num_luns == 0) { 630 vtarget->ioc_id = ioc->id; 631 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES; 632 } 633 634 vdevice->vtarget = vtarget; 635 vdevice->lun = sdev->lun; 636 637 vtarget->num_luns++; 638 639 640 mptfc_dump_lun_info(ioc, rport, sdev, vtarget); 641 642 return 0; 643 } 644 645 static int 646 mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) 647 { 648 struct mptfc_rport_info *ri; 649 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); 650 int err; 651 VirtDevice *vdevice = SCpnt->device->hostdata; 652 653 if (!vdevice || !vdevice->vtarget) { 654 SCpnt->result = DID_NO_CONNECT << 16; 655 done(SCpnt); 656 return 0; 657 } 658 659 err = fc_remote_port_chkready(rport); 660 if (unlikely(err)) { 661 SCpnt->result = err; 662 done(SCpnt); 663 return 0; 664 } 665 666 /* dd_data is null until finished adding target */ 667 ri = *((struct mptfc_rport_info **)rport->dd_data); 668 if (unlikely(!ri)) { 669 SCpnt->result = DID_IMM_RETRY << 16; 670 done(SCpnt); 671 return 0; 672 } 673 674 return mptscsih_qcmd(SCpnt,done); 675 } 676 677 /* 678 * mptfc_display_port_link_speed - displaying link speed 679 * @ioc: Pointer to MPT_ADAPTER structure 680 * @portnum: IOC Port number 681 * @pp0dest: port page0 data payload 682 * 683 */ 684 static void 685 mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest) 686 { 687 u8 old_speed, new_speed, state; 688 char *old, *new; 689 690 if (portnum >= 2) 691 return; 692 693 old_speed = ioc->fc_link_speed[portnum]; 694 new_speed = pp0dest->CurrentSpeed; 695 state = pp0dest->PortState; 696 697 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE && 698 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) { 699 700 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : 701 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : 702 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : 703 "Unknown"; 704 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : 705 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : 706 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : 707 "Unknown"; 708 if (old_speed == 0) 709 printk(MYIOC_s_NOTE_FMT 710 "FC Link Established, Speed = %s\n", 711 ioc->name, new); 712 else if (old_speed != new_speed) 713 printk(MYIOC_s_WARN_FMT 714 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n", 715 ioc->name, old, new); 716 717 ioc->fc_link_speed[portnum] = new_speed; 718 } 719 } 720 721 /* 722 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0. 723 * @ioc: Pointer to MPT_ADAPTER structure 724 * @portnum: IOC Port number 725 * 726 * Return: 0 for success 727 * -ENOMEM if no memory available 728 * -EPERM if not allowed due to ISR context 729 * -EAGAIN if no msg frames currently available 730 * -EFAULT for non-successful reply or no reply (timeout) 731 * -EINVAL portnum arg out of range (hardwired to two elements) 732 */ 733 static int 734 mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) 735 { 736 ConfigPageHeader_t hdr; 737 CONFIGPARMS cfg; 738 FCPortPage0_t *ppage0_alloc; 739 FCPortPage0_t *pp0dest; 740 dma_addr_t page0_dma; 741 int data_sz; 742 int copy_sz; 743 int rc; 744 int count = 400; 745 746 if (portnum > 1) 747 return -EINVAL; 748 749 /* Get FCPort Page 0 header */ 750 hdr.PageVersion = 0; 751 hdr.PageLength = 0; 752 hdr.PageNumber = 0; 753 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 754 cfg.cfghdr.hdr = &hdr; 755 cfg.physAddr = -1; 756 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 757 cfg.dir = 0; 758 cfg.pageAddr = portnum; 759 cfg.timeout = 0; 760 761 if ((rc = mpt_config(ioc, &cfg)) != 0) 762 return rc; 763 764 if (hdr.PageLength == 0) 765 return 0; 766 767 data_sz = hdr.PageLength * 4; 768 rc = -ENOMEM; 769 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma); 770 if (ppage0_alloc) { 771 772 try_again: 773 memset((u8 *)ppage0_alloc, 0, data_sz); 774 cfg.physAddr = page0_dma; 775 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 776 777 if ((rc = mpt_config(ioc, &cfg)) == 0) { 778 /* save the data */ 779 pp0dest = &ioc->fc_port_page0[portnum]; 780 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz); 781 memcpy(pp0dest, ppage0_alloc, copy_sz); 782 783 /* 784 * Normalize endianness of structure data, 785 * by byte-swapping all > 1 byte fields! 786 */ 787 pp0dest->Flags = le32_to_cpu(pp0dest->Flags); 788 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier); 789 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low); 790 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High); 791 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low); 792 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High); 793 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass); 794 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds); 795 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed); 796 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize); 797 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low); 798 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High); 799 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low); 800 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High); 801 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount); 802 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators); 803 804 /* 805 * if still doing discovery, 806 * hang loose a while until finished 807 */ 808 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) || 809 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE && 810 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) 811 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) { 812 if (count-- > 0) { 813 msleep(100); 814 goto try_again; 815 } 816 printk(MYIOC_s_INFO_FMT "Firmware discovery not" 817 " complete.\n", 818 ioc->name); 819 } 820 mptfc_display_port_link_speed(ioc, portnum, pp0dest); 821 } 822 823 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma); 824 } 825 826 return rc; 827 } 828 829 static int 830 mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum) 831 { 832 ConfigPageHeader_t hdr; 833 CONFIGPARMS cfg; 834 int rc; 835 836 if (portnum > 1) 837 return -EINVAL; 838 839 if (!(ioc->fc_data.fc_port_page1[portnum].data)) 840 return -EINVAL; 841 842 /* get fcport page 1 header */ 843 hdr.PageVersion = 0; 844 hdr.PageLength = 0; 845 hdr.PageNumber = 1; 846 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 847 cfg.cfghdr.hdr = &hdr; 848 cfg.physAddr = -1; 849 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 850 cfg.dir = 0; 851 cfg.pageAddr = portnum; 852 cfg.timeout = 0; 853 854 if ((rc = mpt_config(ioc, &cfg)) != 0) 855 return rc; 856 857 if (hdr.PageLength == 0) 858 return -ENODEV; 859 860 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz) 861 return -EINVAL; 862 863 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma; 864 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 865 cfg.dir = 1; 866 867 rc = mpt_config(ioc, &cfg); 868 869 return rc; 870 } 871 872 static int 873 mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum) 874 { 875 ConfigPageHeader_t hdr; 876 CONFIGPARMS cfg; 877 FCPortPage1_t *page1_alloc; 878 dma_addr_t page1_dma; 879 int data_sz; 880 int rc; 881 882 if (portnum > 1) 883 return -EINVAL; 884 885 /* get fcport page 1 header */ 886 hdr.PageVersion = 0; 887 hdr.PageLength = 0; 888 hdr.PageNumber = 1; 889 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 890 cfg.cfghdr.hdr = &hdr; 891 cfg.physAddr = -1; 892 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 893 cfg.dir = 0; 894 cfg.pageAddr = portnum; 895 cfg.timeout = 0; 896 897 if ((rc = mpt_config(ioc, &cfg)) != 0) 898 return rc; 899 900 if (hdr.PageLength == 0) 901 return -ENODEV; 902 903 start_over: 904 905 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) { 906 data_sz = hdr.PageLength * 4; 907 if (data_sz < sizeof(FCPortPage1_t)) 908 data_sz = sizeof(FCPortPage1_t); 909 910 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev, 911 data_sz, 912 &page1_dma); 913 if (!page1_alloc) 914 return -ENOMEM; 915 } 916 else { 917 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data; 918 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma; 919 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz; 920 if (hdr.PageLength * 4 > data_sz) { 921 ioc->fc_data.fc_port_page1[portnum].data = NULL; 922 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 923 page1_alloc, page1_dma); 924 goto start_over; 925 } 926 } 927 928 memset(page1_alloc,0,data_sz); 929 930 cfg.physAddr = page1_dma; 931 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 932 933 if ((rc = mpt_config(ioc, &cfg)) == 0) { 934 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc; 935 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz; 936 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma; 937 } 938 else { 939 ioc->fc_data.fc_port_page1[portnum].data = NULL; 940 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 941 page1_alloc, page1_dma); 942 } 943 944 return rc; 945 } 946 947 static void 948 mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc) 949 { 950 int ii; 951 FCPortPage1_t *pp1; 952 953 #define MPTFC_FW_DEVICE_TIMEOUT (1) 954 #define MPTFC_FW_IO_PEND_TIMEOUT (1) 955 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY) 956 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS) 957 958 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 959 if (mptfc_GetFcPortPage1(ioc, ii) != 0) 960 continue; 961 pp1 = ioc->fc_data.fc_port_page1[ii].data; 962 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT) 963 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT) 964 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS) 965 && ((pp1->Flags & OFF_FLAGS) == 0)) 966 continue; 967 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT; 968 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT; 969 pp1->Flags &= ~OFF_FLAGS; 970 pp1->Flags |= ON_FLAGS; 971 mptfc_WriteFcPortPage1(ioc, ii); 972 } 973 } 974 975 976 static void 977 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum) 978 { 979 unsigned class = 0; 980 unsigned cos = 0; 981 unsigned speed; 982 unsigned port_type; 983 unsigned port_state; 984 FCPortPage0_t *pp0; 985 struct Scsi_Host *sh; 986 char *sn; 987 988 /* don't know what to do as only one scsi (fc) host was allocated */ 989 if (portnum != 0) 990 return; 991 992 pp0 = &ioc->fc_port_page0[portnum]; 993 sh = ioc->sh; 994 995 sn = fc_host_symbolic_name(sh); 996 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh", 997 ioc->prod_name, 998 MPT_FW_REV_MAGIC_ID_STRING, 999 ioc->facts.FWVersion.Word); 1000 1001 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN; 1002 1003 fc_host_maxframe_size(sh) = pp0->MaxFrameSize; 1004 1005 fc_host_node_name(sh) = 1006 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1007 1008 fc_host_port_name(sh) = 1009 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low; 1010 1011 fc_host_port_id(sh) = pp0->PortIdentifier; 1012 1013 class = pp0->SupportedServiceClass; 1014 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1) 1015 cos |= FC_COS_CLASS1; 1016 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2) 1017 cos |= FC_COS_CLASS2; 1018 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3) 1019 cos |= FC_COS_CLASS3; 1020 fc_host_supported_classes(sh) = cos; 1021 1022 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT) 1023 speed = FC_PORTSPEED_1GBIT; 1024 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT) 1025 speed = FC_PORTSPEED_2GBIT; 1026 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT) 1027 speed = FC_PORTSPEED_4GBIT; 1028 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT) 1029 speed = FC_PORTSPEED_10GBIT; 1030 else 1031 speed = FC_PORTSPEED_UNKNOWN; 1032 fc_host_speed(sh) = speed; 1033 1034 speed = 0; 1035 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED) 1036 speed |= FC_PORTSPEED_1GBIT; 1037 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED) 1038 speed |= FC_PORTSPEED_2GBIT; 1039 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED) 1040 speed |= FC_PORTSPEED_4GBIT; 1041 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED) 1042 speed |= FC_PORTSPEED_10GBIT; 1043 fc_host_supported_speeds(sh) = speed; 1044 1045 port_state = FC_PORTSTATE_UNKNOWN; 1046 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE) 1047 port_state = FC_PORTSTATE_ONLINE; 1048 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE) 1049 port_state = FC_PORTSTATE_LINKDOWN; 1050 fc_host_port_state(sh) = port_state; 1051 1052 port_type = FC_PORTTYPE_UNKNOWN; 1053 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT) 1054 port_type = FC_PORTTYPE_PTP; 1055 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP) 1056 port_type = FC_PORTTYPE_LPORT; 1057 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP) 1058 port_type = FC_PORTTYPE_NLPORT; 1059 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT) 1060 port_type = FC_PORTTYPE_NPORT; 1061 fc_host_port_type(sh) = port_type; 1062 1063 fc_host_fabric_name(sh) = 1064 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ? 1065 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low : 1066 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1067 1068 } 1069 1070 static void 1071 mptfc_link_status_change(struct work_struct *work) 1072 { 1073 MPT_ADAPTER *ioc = 1074 container_of(work, MPT_ADAPTER, fc_rescan_work); 1075 int ii; 1076 1077 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) 1078 (void) mptfc_GetFcPortPage0(ioc, ii); 1079 1080 } 1081 1082 static void 1083 mptfc_setup_reset(struct work_struct *work) 1084 { 1085 MPT_ADAPTER *ioc = 1086 container_of(work, MPT_ADAPTER, fc_setup_reset_work); 1087 u64 pn; 1088 struct mptfc_rport_info *ri; 1089 1090 /* reset about to happen, delete (block) all rports */ 1091 list_for_each_entry(ri, &ioc->fc_rports, list) { 1092 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1093 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED; 1094 fc_remote_port_delete(ri->rport); /* won't sleep */ 1095 ri->rport = NULL; 1096 1097 pn = (u64)ri->pg0.WWPN.High << 32 | 1098 (u64)ri->pg0.WWPN.Low; 1099 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1100 "mptfc_setup_reset.%d: %llx deleted\n", 1101 ioc->name, 1102 ioc->sh->host_no, 1103 (unsigned long long)pn)); 1104 } 1105 } 1106 } 1107 1108 static void 1109 mptfc_rescan_devices(struct work_struct *work) 1110 { 1111 MPT_ADAPTER *ioc = 1112 container_of(work, MPT_ADAPTER, fc_rescan_work); 1113 int ii; 1114 u64 pn; 1115 struct mptfc_rport_info *ri; 1116 1117 /* start by tagging all ports as missing */ 1118 list_for_each_entry(ri, &ioc->fc_rports, list) { 1119 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1120 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; 1121 } 1122 } 1123 1124 /* 1125 * now rescan devices known to adapter, 1126 * will reregister existing rports 1127 */ 1128 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1129 (void) mptfc_GetFcPortPage0(ioc, ii); 1130 mptfc_init_host_attr(ioc, ii); /* refresh */ 1131 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev); 1132 } 1133 1134 /* delete devices still missing */ 1135 list_for_each_entry(ri, &ioc->fc_rports, list) { 1136 /* if newly missing, delete it */ 1137 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { 1138 1139 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| 1140 MPT_RPORT_INFO_FLAGS_MISSING); 1141 fc_remote_port_delete(ri->rport); /* won't sleep */ 1142 ri->rport = NULL; 1143 1144 pn = (u64)ri->pg0.WWPN.High << 32 | 1145 (u64)ri->pg0.WWPN.Low; 1146 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1147 "mptfc_rescan.%d: %llx deleted\n", 1148 ioc->name, 1149 ioc->sh->host_no, 1150 (unsigned long long)pn)); 1151 } 1152 } 1153 } 1154 1155 static int 1156 mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1157 { 1158 struct Scsi_Host *sh; 1159 MPT_SCSI_HOST *hd; 1160 MPT_ADAPTER *ioc; 1161 unsigned long flags; 1162 int ii; 1163 int numSGE = 0; 1164 int scale; 1165 int ioc_cap; 1166 int error=0; 1167 int r; 1168 1169 if ((r = mpt_attach(pdev,id)) != 0) 1170 return r; 1171 1172 ioc = pci_get_drvdata(pdev); 1173 ioc->DoneCtx = mptfcDoneCtx; 1174 ioc->TaskCtx = mptfcTaskCtx; 1175 ioc->InternalCtx = mptfcInternalCtx; 1176 1177 /* Added sanity check on readiness of the MPT adapter. 1178 */ 1179 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 1180 printk(MYIOC_s_WARN_FMT 1181 "Skipping because it's not operational!\n", 1182 ioc->name); 1183 error = -ENODEV; 1184 goto out_mptfc_probe; 1185 } 1186 1187 if (!ioc->active) { 1188 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 1189 ioc->name); 1190 error = -ENODEV; 1191 goto out_mptfc_probe; 1192 } 1193 1194 /* Sanity check - ensure at least 1 port is INITIATOR capable 1195 */ 1196 ioc_cap = 0; 1197 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1198 if (ioc->pfacts[ii].ProtocolFlags & 1199 MPI_PORTFACTS_PROTOCOL_INITIATOR) 1200 ioc_cap ++; 1201 } 1202 1203 if (!ioc_cap) { 1204 printk(MYIOC_s_WARN_FMT 1205 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", 1206 ioc->name, ioc); 1207 return 0; 1208 } 1209 1210 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST)); 1211 1212 if (!sh) { 1213 printk(MYIOC_s_WARN_FMT 1214 "Unable to register controller with SCSI subsystem\n", 1215 ioc->name); 1216 error = -1; 1217 goto out_mptfc_probe; 1218 } 1219 1220 spin_lock_init(&ioc->fc_rescan_work_lock); 1221 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices); 1222 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset); 1223 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change); 1224 1225 spin_lock_irqsave(&ioc->FreeQlock, flags); 1226 1227 /* Attach the SCSI Host to the IOC structure 1228 */ 1229 ioc->sh = sh; 1230 1231 sh->io_port = 0; 1232 sh->n_io_port = 0; 1233 sh->irq = 0; 1234 1235 /* set 16 byte cdb's */ 1236 sh->max_cmd_len = 16; 1237 1238 sh->max_id = ioc->pfacts->MaxDevices; 1239 sh->max_lun = max_lun; 1240 1241 /* Required entry. 1242 */ 1243 sh->unique_id = ioc->id; 1244 1245 /* Verify that we won't exceed the maximum 1246 * number of chain buffers 1247 * We can optimize: ZZ = req_sz/sizeof(SGE) 1248 * For 32bit SGE's: 1249 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 1250 * + (req_sz - 64)/sizeof(SGE) 1251 * A slightly different algorithm is required for 1252 * 64bit SGEs. 1253 */ 1254 scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32)); 1255 if (sizeof(dma_addr_t) == sizeof(u64)) { 1256 numSGE = (scale - 1) * 1257 (ioc->facts.MaxChainDepth-1) + scale + 1258 (ioc->req_sz - 60) / (sizeof(dma_addr_t) + 1259 sizeof(u32)); 1260 } else { 1261 numSGE = 1 + (scale - 1) * 1262 (ioc->facts.MaxChainDepth-1) + scale + 1263 (ioc->req_sz - 64) / (sizeof(dma_addr_t) + 1264 sizeof(u32)); 1265 } 1266 1267 if (numSGE < sh->sg_tablesize) { 1268 /* Reset this value */ 1269 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1270 "Resetting sg_tablesize to %d from %d\n", 1271 ioc->name, numSGE, sh->sg_tablesize)); 1272 sh->sg_tablesize = numSGE; 1273 } 1274 1275 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1276 1277 hd = shost_priv(sh); 1278 hd->ioc = ioc; 1279 1280 /* SCSI needs scsi_cmnd lookup table! 1281 * (with size equal to req_depth*PtrSz!) 1282 */ 1283 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); 1284 if (!ioc->ScsiLookup) { 1285 error = -ENOMEM; 1286 goto out_mptfc_probe; 1287 } 1288 spin_lock_init(&ioc->scsi_lookup_lock); 1289 1290 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n", 1291 ioc->name, ioc->ScsiLookup)); 1292 1293 /* Clear the TM flags 1294 */ 1295 hd->tmPending = 0; 1296 hd->tmState = TM_STATE_NONE; 1297 hd->resetPending = 0; 1298 hd->abortSCpnt = NULL; 1299 1300 /* Clear the pointer used to store 1301 * single-threaded commands, i.e., those 1302 * issued during a bus scan, dv and 1303 * configuration pages. 1304 */ 1305 hd->cmdPtr = NULL; 1306 1307 /* Initialize this SCSI Hosts' timers 1308 * To use, set the timer expires field 1309 * and add_timer 1310 */ 1311 init_timer(&hd->timer); 1312 hd->timer.data = (unsigned long) hd; 1313 hd->timer.function = mptscsih_timer_expired; 1314 1315 init_waitqueue_head(&hd->scandv_waitq); 1316 hd->scandv_wait_done = 0; 1317 hd->last_queue_full = 0; 1318 1319 sh->transportt = mptfc_transport_template; 1320 error = scsi_add_host (sh, &ioc->pcidev->dev); 1321 if(error) { 1322 dprintk(ioc, printk(MYIOC_s_ERR_FMT 1323 "scsi_add_host failed\n", ioc->name)); 1324 goto out_mptfc_probe; 1325 } 1326 1327 /* initialize workqueue */ 1328 1329 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name), 1330 "mptfc_wq_%d", sh->host_no); 1331 ioc->fc_rescan_work_q = 1332 create_singlethread_workqueue(ioc->fc_rescan_work_q_name); 1333 if (!ioc->fc_rescan_work_q) 1334 goto out_mptfc_probe; 1335 1336 /* 1337 * Pre-fetch FC port WWN and stuff... 1338 * (FCPortPage0_t stuff) 1339 */ 1340 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1341 (void) mptfc_GetFcPortPage0(ioc, ii); 1342 } 1343 mptfc_SetFcPortPage1_defaults(ioc); 1344 1345 /* 1346 * scan for rports - 1347 * by doing it via the workqueue, some locking is eliminated 1348 */ 1349 1350 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); 1351 flush_workqueue(ioc->fc_rescan_work_q); 1352 1353 return 0; 1354 1355 out_mptfc_probe: 1356 1357 mptscsih_remove(pdev); 1358 return error; 1359 } 1360 1361 static struct pci_driver mptfc_driver = { 1362 .name = "mptfc", 1363 .id_table = mptfc_pci_table, 1364 .probe = mptfc_probe, 1365 .remove = __devexit_p(mptfc_remove), 1366 .shutdown = mptscsih_shutdown, 1367 #ifdef CONFIG_PM 1368 .suspend = mptscsih_suspend, 1369 .resume = mptscsih_resume, 1370 #endif 1371 }; 1372 1373 static int 1374 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 1375 { 1376 MPT_SCSI_HOST *hd; 1377 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 1378 unsigned long flags; 1379 int rc=1; 1380 1381 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n", 1382 ioc->name, event)); 1383 1384 if (ioc->sh == NULL || 1385 ((hd = shost_priv(ioc->sh)) == NULL)) 1386 return 1; 1387 1388 switch (event) { 1389 case MPI_EVENT_RESCAN: 1390 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1391 if (ioc->fc_rescan_work_q) { 1392 queue_work(ioc->fc_rescan_work_q, 1393 &ioc->fc_rescan_work); 1394 } 1395 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1396 break; 1397 case MPI_EVENT_LINK_STATUS_CHANGE: 1398 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1399 if (ioc->fc_rescan_work_q) { 1400 queue_work(ioc->fc_rescan_work_q, 1401 &ioc->fc_lsc_work); 1402 } 1403 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1404 break; 1405 default: 1406 rc = mptscsih_event_process(ioc,pEvReply); 1407 break; 1408 } 1409 return rc; 1410 } 1411 1412 static int 1413 mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 1414 { 1415 int rc; 1416 unsigned long flags; 1417 1418 rc = mptscsih_ioc_reset(ioc,reset_phase); 1419 if (rc == 0) 1420 return rc; 1421 1422 1423 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1424 ": IOC %s_reset routed to FC host driver!\n",ioc->name, 1425 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( 1426 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); 1427 1428 if (reset_phase == MPT_IOC_SETUP_RESET) { 1429 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1430 if (ioc->fc_rescan_work_q) { 1431 queue_work(ioc->fc_rescan_work_q, 1432 &ioc->fc_setup_reset_work); 1433 } 1434 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1435 } 1436 1437 else if (reset_phase == MPT_IOC_PRE_RESET) { 1438 } 1439 1440 else { /* MPT_IOC_POST_RESET */ 1441 mptfc_SetFcPortPage1_defaults(ioc); 1442 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1443 if (ioc->fc_rescan_work_q) { 1444 queue_work(ioc->fc_rescan_work_q, 1445 &ioc->fc_rescan_work); 1446 } 1447 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1448 } 1449 return 1; 1450 } 1451 1452 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1453 /** 1454 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer. 1455 * 1456 * Returns 0 for success, non-zero for failure. 1457 */ 1458 static int __init 1459 mptfc_init(void) 1460 { 1461 int error; 1462 1463 show_mptmod_ver(my_NAME, my_VERSION); 1464 1465 /* sanity check module parameters */ 1466 if (mptfc_dev_loss_tmo <= 0) 1467 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; 1468 1469 mptfc_transport_template = 1470 fc_attach_transport(&mptfc_transport_functions); 1471 1472 if (!mptfc_transport_template) 1473 return -ENODEV; 1474 1475 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER); 1476 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER); 1477 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER); 1478 1479 mpt_event_register(mptfcDoneCtx, mptfc_event_process); 1480 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset); 1481 1482 error = pci_register_driver(&mptfc_driver); 1483 if (error) 1484 fc_release_transport(mptfc_transport_template); 1485 1486 return error; 1487 } 1488 1489 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1490 /** 1491 * mptfc_remove - Remove fc infrastructure for devices 1492 * @pdev: Pointer to pci_dev structure 1493 * 1494 */ 1495 static void __devexit 1496 mptfc_remove(struct pci_dev *pdev) 1497 { 1498 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1499 struct mptfc_rport_info *p, *n; 1500 struct workqueue_struct *work_q; 1501 unsigned long flags; 1502 int ii; 1503 1504 /* destroy workqueue */ 1505 if ((work_q=ioc->fc_rescan_work_q)) { 1506 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1507 ioc->fc_rescan_work_q = NULL; 1508 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1509 destroy_workqueue(work_q); 1510 } 1511 1512 fc_remove_host(ioc->sh); 1513 1514 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) { 1515 list_del(&p->list); 1516 kfree(p); 1517 } 1518 1519 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 1520 if (ioc->fc_data.fc_port_page1[ii].data) { 1521 pci_free_consistent(ioc->pcidev, 1522 ioc->fc_data.fc_port_page1[ii].pg_sz, 1523 (u8 *) ioc->fc_data.fc_port_page1[ii].data, 1524 ioc->fc_data.fc_port_page1[ii].dma); 1525 ioc->fc_data.fc_port_page1[ii].data = NULL; 1526 } 1527 } 1528 1529 mptscsih_remove(pdev); 1530 } 1531 1532 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1533 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1534 /** 1535 * mptfc_exit - Unregisters MPT adapter(s) 1536 * 1537 */ 1538 static void __exit 1539 mptfc_exit(void) 1540 { 1541 pci_unregister_driver(&mptfc_driver); 1542 fc_release_transport(mptfc_transport_template); 1543 1544 mpt_reset_deregister(mptfcDoneCtx); 1545 mpt_event_deregister(mptfcDoneCtx); 1546 1547 mpt_deregister(mptfcInternalCtx); 1548 mpt_deregister(mptfcTaskCtx); 1549 mpt_deregister(mptfcDoneCtx); 1550 } 1551 1552 module_init(mptfc_init); 1553 module_exit(mptfc_exit); 1554