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 #include <linux/slab.h> 58 59 #include <scsi/scsi.h> 60 #include <scsi/scsi_cmnd.h> 61 #include <scsi/scsi_device.h> 62 #include <scsi/scsi_host.h> 63 #include <scsi/scsi_tcq.h> 64 #include <scsi/scsi_transport_fc.h> 65 66 #include "mptbase.h" 67 #include "mptscsih.h" 68 69 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 70 #define my_NAME "Fusion MPT FC Host driver" 71 #define my_VERSION MPT_LINUX_VERSION_COMMON 72 #define MYNAM "mptfc" 73 74 MODULE_AUTHOR(MODULEAUTHOR); 75 MODULE_DESCRIPTION(my_NAME); 76 MODULE_LICENSE("GPL"); 77 MODULE_VERSION(my_VERSION); 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 /* scsi-mid layer global parmeter is max_report_luns, which is 511 */ 89 #define MPTFC_MAX_LUN (16895) 90 static int max_lun = MPTFC_MAX_LUN; 91 module_param(max_lun, int, 0); 92 MODULE_PARM_DESC(max_lun, " max lun, default=16895 "); 93 94 static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS; 95 static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS; 96 static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS; 97 98 static int mptfc_target_alloc(struct scsi_target *starget); 99 static int mptfc_slave_alloc(struct scsi_device *sdev); 100 static int mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt); 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 int loops = 40; /* seconds */ 199 200 hd = shost_priv(SCpnt->device->host); 201 ioc = hd->ioc; 202 spin_lock_irqsave(shost->host_lock, flags); 203 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY 204 || (loops > 0 && ioc->active == 0)) { 205 spin_unlock_irqrestore(shost->host_lock, flags); 206 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 207 "mptfc_block_error_handler.%d: %d:%d, port status is " 208 "%x, active flag %d, deferring %s recovery.\n", 209 ioc->name, ioc->sh->host_no, 210 SCpnt->device->id, SCpnt->device->lun, 211 ready, ioc->active, caller)); 212 msleep(1000); 213 spin_lock_irqsave(shost->host_lock, flags); 214 loops --; 215 } 216 spin_unlock_irqrestore(shost->host_lock, flags); 217 218 if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata 219 || ioc->active == 0) { 220 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 221 "%s.%d: %d:%d, failing recovery, " 222 "port state %x, active %d, vdevice %p.\n", caller, 223 ioc->name, ioc->sh->host_no, 224 SCpnt->device->id, SCpnt->device->lun, ready, 225 ioc->active, SCpnt->device->hostdata)); 226 return FAILED; 227 } 228 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 229 "%s.%d: %d:%d, executing recovery.\n", caller, 230 ioc->name, ioc->sh->host_no, 231 SCpnt->device->id, SCpnt->device->lun)); 232 return (*func)(SCpnt); 233 } 234 235 static int 236 mptfc_abort(struct scsi_cmnd *SCpnt) 237 { 238 return 239 mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__); 240 } 241 242 static int 243 mptfc_dev_reset(struct scsi_cmnd *SCpnt) 244 { 245 return 246 mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__); 247 } 248 249 static int 250 mptfc_bus_reset(struct scsi_cmnd *SCpnt) 251 { 252 return 253 mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__); 254 } 255 256 static int 257 mptfc_host_reset(struct scsi_cmnd *SCpnt) 258 { 259 return 260 mptfc_block_error_handler(SCpnt, mptscsih_host_reset, __func__); 261 } 262 263 static void 264 mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 265 { 266 if (timeout > 0) 267 rport->dev_loss_tmo = timeout; 268 else 269 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 270 } 271 272 static int 273 mptfc_FcDevPage0_cmp_func(const void *a, const void *b) 274 { 275 FCDevicePage0_t **aa = (FCDevicePage0_t **)a; 276 FCDevicePage0_t **bb = (FCDevicePage0_t **)b; 277 278 if ((*aa)->CurrentBus == (*bb)->CurrentBus) { 279 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID) 280 return 0; 281 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID) 282 return -1; 283 return 1; 284 } 285 if ((*aa)->CurrentBus < (*bb)->CurrentBus) 286 return -1; 287 return 1; 288 } 289 290 static int 291 mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port, 292 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg)) 293 { 294 ConfigPageHeader_t hdr; 295 CONFIGPARMS cfg; 296 FCDevicePage0_t *ppage0_alloc, *fc; 297 dma_addr_t page0_dma; 298 int data_sz; 299 int ii; 300 301 FCDevicePage0_t *p0_array=NULL, *p_p0; 302 FCDevicePage0_t **pp0_array=NULL, **p_pp0; 303 304 int rc = -ENOMEM; 305 U32 port_id = 0xffffff; 306 int num_targ = 0; 307 int max_bus = ioc->facts.MaxBuses; 308 int max_targ; 309 310 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices; 311 312 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ; 313 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL); 314 if (!p0_array) 315 goto out; 316 317 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ; 318 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL); 319 if (!pp0_array) 320 goto out; 321 322 do { 323 /* Get FC Device Page 0 header */ 324 hdr.PageVersion = 0; 325 hdr.PageLength = 0; 326 hdr.PageNumber = 0; 327 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE; 328 cfg.cfghdr.hdr = &hdr; 329 cfg.physAddr = -1; 330 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 331 cfg.dir = 0; 332 cfg.pageAddr = port_id; 333 cfg.timeout = 0; 334 335 if ((rc = mpt_config(ioc, &cfg)) != 0) 336 break; 337 338 if (hdr.PageLength <= 0) 339 break; 340 341 data_sz = hdr.PageLength * 4; 342 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, 343 &page0_dma); 344 rc = -ENOMEM; 345 if (!ppage0_alloc) 346 break; 347 348 cfg.physAddr = page0_dma; 349 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 350 351 if ((rc = mpt_config(ioc, &cfg)) == 0) { 352 ppage0_alloc->PortIdentifier = 353 le32_to_cpu(ppage0_alloc->PortIdentifier); 354 355 ppage0_alloc->WWNN.Low = 356 le32_to_cpu(ppage0_alloc->WWNN.Low); 357 358 ppage0_alloc->WWNN.High = 359 le32_to_cpu(ppage0_alloc->WWNN.High); 360 361 ppage0_alloc->WWPN.Low = 362 le32_to_cpu(ppage0_alloc->WWPN.Low); 363 364 ppage0_alloc->WWPN.High = 365 le32_to_cpu(ppage0_alloc->WWPN.High); 366 367 ppage0_alloc->BBCredit = 368 le16_to_cpu(ppage0_alloc->BBCredit); 369 370 ppage0_alloc->MaxRxFrameSize = 371 le16_to_cpu(ppage0_alloc->MaxRxFrameSize); 372 373 port_id = ppage0_alloc->PortIdentifier; 374 num_targ++; 375 *p_p0 = *ppage0_alloc; /* save data */ 376 *p_pp0++ = p_p0++; /* save addr */ 377 } 378 pci_free_consistent(ioc->pcidev, data_sz, 379 (u8 *) ppage0_alloc, page0_dma); 380 if (rc != 0) 381 break; 382 383 } while (port_id <= 0xff0000); 384 385 if (num_targ) { 386 /* sort array */ 387 if (num_targ > 1) 388 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *), 389 mptfc_FcDevPage0_cmp_func, NULL); 390 /* call caller's func for each targ */ 391 for (ii = 0; ii < num_targ; ii++) { 392 fc = *(pp0_array+ii); 393 func(ioc, ioc_port, fc); 394 } 395 } 396 397 out: 398 kfree(pp0_array); 399 kfree(p0_array); 400 return rc; 401 } 402 403 static int 404 mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid) 405 { 406 /* not currently usable */ 407 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID | 408 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID)) 409 return -1; 410 411 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID)) 412 return -1; 413 414 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET)) 415 return -1; 416 417 /* 418 * board data structure already normalized to platform endianness 419 * shifted to avoid unaligned access on 64 bit architecture 420 */ 421 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low; 422 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low; 423 rid->port_id = pg0->PortIdentifier; 424 rid->roles = FC_RPORT_ROLE_UNKNOWN; 425 426 return 0; 427 } 428 429 static void 430 mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0) 431 { 432 struct fc_rport_identifiers rport_ids; 433 struct fc_rport *rport; 434 struct mptfc_rport_info *ri; 435 int new_ri = 1; 436 u64 pn, nn; 437 VirtTarget *vtarget; 438 u32 roles = FC_RPORT_ROLE_UNKNOWN; 439 440 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0) 441 return; 442 443 roles |= FC_RPORT_ROLE_FCP_TARGET; 444 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR) 445 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 446 447 /* scan list looking for a match */ 448 list_for_each_entry(ri, &ioc->fc_rports, list) { 449 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 450 if (pn == rport_ids.port_name) { /* match */ 451 list_move_tail(&ri->list, &ioc->fc_rports); 452 new_ri = 0; 453 break; 454 } 455 } 456 if (new_ri) { /* allocate one */ 457 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL); 458 if (!ri) 459 return; 460 list_add_tail(&ri->list, &ioc->fc_rports); 461 } 462 463 ri->pg0 = *pg0; /* add/update pg0 data */ 464 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING; 465 466 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */ 467 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) { 468 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED; 469 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids); 470 if (rport) { 471 ri->rport = rport; 472 if (new_ri) /* may have been reset by user */ 473 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 474 /* 475 * if already mapped, remap here. If not mapped, 476 * target_alloc will allocate vtarget and map, 477 * slave_alloc will fill in vdevice from vtarget. 478 */ 479 if (ri->starget) { 480 vtarget = ri->starget->hostdata; 481 if (vtarget) { 482 vtarget->id = pg0->CurrentTargetID; 483 vtarget->channel = pg0->CurrentBus; 484 vtarget->deleted = 0; 485 } 486 } 487 *((struct mptfc_rport_info **)rport->dd_data) = ri; 488 /* scan will be scheduled once rport becomes a target */ 489 fc_remote_port_rolechg(rport,roles); 490 491 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 492 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 493 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 494 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, " 495 "rport tid %d, tmo %d\n", 496 ioc->name, 497 ioc->sh->host_no, 498 pg0->PortIdentifier, 499 (unsigned long long)nn, 500 (unsigned long long)pn, 501 pg0->CurrentTargetID, 502 ri->rport->scsi_target_id, 503 ri->rport->dev_loss_tmo)); 504 } else { 505 list_del(&ri->list); 506 kfree(ri); 507 ri = NULL; 508 } 509 } 510 } 511 512 /* 513 * OS entry point to allow for host driver to free allocated memory 514 * Called if no device present or device being unloaded 515 */ 516 static void 517 mptfc_target_destroy(struct scsi_target *starget) 518 { 519 struct fc_rport *rport; 520 struct mptfc_rport_info *ri; 521 522 rport = starget_to_rport(starget); 523 if (rport) { 524 ri = *((struct mptfc_rport_info **)rport->dd_data); 525 if (ri) /* better be! */ 526 ri->starget = NULL; 527 } 528 if (starget->hostdata) 529 kfree(starget->hostdata); 530 starget->hostdata = NULL; 531 } 532 533 /* 534 * OS entry point to allow host driver to alloc memory 535 * for each scsi target. Called once per device the bus scan. 536 * Return non-zero if allocation fails. 537 */ 538 static int 539 mptfc_target_alloc(struct scsi_target *starget) 540 { 541 VirtTarget *vtarget; 542 struct fc_rport *rport; 543 struct mptfc_rport_info *ri; 544 int rc; 545 546 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); 547 if (!vtarget) 548 return -ENOMEM; 549 starget->hostdata = vtarget; 550 551 rc = -ENODEV; 552 rport = starget_to_rport(starget); 553 if (rport) { 554 ri = *((struct mptfc_rport_info **)rport->dd_data); 555 if (ri) { /* better be! */ 556 vtarget->id = ri->pg0.CurrentTargetID; 557 vtarget->channel = ri->pg0.CurrentBus; 558 ri->starget = starget; 559 rc = 0; 560 } 561 } 562 if (rc != 0) { 563 kfree(vtarget); 564 starget->hostdata = NULL; 565 } 566 567 return rc; 568 } 569 /* 570 * mptfc_dump_lun_info 571 * @ioc 572 * @rport 573 * @sdev 574 * 575 */ 576 static void 577 mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev, 578 VirtTarget *vtarget) 579 { 580 u64 nn, pn; 581 struct mptfc_rport_info *ri; 582 583 ri = *((struct mptfc_rport_info **)rport->dd_data); 584 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 585 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 586 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 587 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, " 588 "CurrentTargetID %d, %x %llx %llx\n", 589 ioc->name, 590 sdev->host->host_no, 591 vtarget->num_luns, 592 sdev->id, ri->pg0.CurrentTargetID, 593 ri->pg0.PortIdentifier, 594 (unsigned long long)pn, 595 (unsigned long long)nn)); 596 } 597 598 599 /* 600 * OS entry point to allow host driver to alloc memory 601 * for each scsi device. Called once per device the bus scan. 602 * Return non-zero if allocation fails. 603 * Init memory once per LUN. 604 */ 605 static int 606 mptfc_slave_alloc(struct scsi_device *sdev) 607 { 608 MPT_SCSI_HOST *hd; 609 VirtTarget *vtarget; 610 VirtDevice *vdevice; 611 struct scsi_target *starget; 612 struct fc_rport *rport; 613 MPT_ADAPTER *ioc; 614 615 starget = scsi_target(sdev); 616 rport = starget_to_rport(starget); 617 618 if (!rport || fc_remote_port_chkready(rport)) 619 return -ENXIO; 620 621 hd = shost_priv(sdev->host); 622 ioc = hd->ioc; 623 624 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL); 625 if (!vdevice) { 626 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", 627 ioc->name, sizeof(VirtDevice)); 628 return -ENOMEM; 629 } 630 631 632 sdev->hostdata = vdevice; 633 vtarget = starget->hostdata; 634 635 if (vtarget->num_luns == 0) { 636 vtarget->ioc_id = ioc->id; 637 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES; 638 } 639 640 vdevice->vtarget = vtarget; 641 vdevice->lun = sdev->lun; 642 643 vtarget->num_luns++; 644 645 646 mptfc_dump_lun_info(ioc, rport, sdev, vtarget); 647 648 return 0; 649 } 650 651 static int 652 mptfc_qcmd_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) 653 { 654 struct mptfc_rport_info *ri; 655 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); 656 int err; 657 VirtDevice *vdevice = SCpnt->device->hostdata; 658 659 if (!vdevice || !vdevice->vtarget) { 660 SCpnt->result = DID_NO_CONNECT << 16; 661 done(SCpnt); 662 return 0; 663 } 664 665 err = fc_remote_port_chkready(rport); 666 if (unlikely(err)) { 667 SCpnt->result = err; 668 done(SCpnt); 669 return 0; 670 } 671 672 /* dd_data is null until finished adding target */ 673 ri = *((struct mptfc_rport_info **)rport->dd_data); 674 if (unlikely(!ri)) { 675 SCpnt->result = DID_IMM_RETRY << 16; 676 done(SCpnt); 677 return 0; 678 } 679 680 return mptscsih_qcmd(SCpnt,done); 681 } 682 683 static DEF_SCSI_QCMD(mptfc_qcmd) 684 685 /* 686 * mptfc_display_port_link_speed - displaying link speed 687 * @ioc: Pointer to MPT_ADAPTER structure 688 * @portnum: IOC Port number 689 * @pp0dest: port page0 data payload 690 * 691 */ 692 static void 693 mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest) 694 { 695 u8 old_speed, new_speed, state; 696 char *old, *new; 697 698 if (portnum >= 2) 699 return; 700 701 old_speed = ioc->fc_link_speed[portnum]; 702 new_speed = pp0dest->CurrentSpeed; 703 state = pp0dest->PortState; 704 705 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE && 706 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) { 707 708 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : 709 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : 710 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : 711 "Unknown"; 712 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : 713 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : 714 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : 715 "Unknown"; 716 if (old_speed == 0) 717 printk(MYIOC_s_NOTE_FMT 718 "FC Link Established, Speed = %s\n", 719 ioc->name, new); 720 else if (old_speed != new_speed) 721 printk(MYIOC_s_WARN_FMT 722 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n", 723 ioc->name, old, new); 724 725 ioc->fc_link_speed[portnum] = new_speed; 726 } 727 } 728 729 /* 730 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0. 731 * @ioc: Pointer to MPT_ADAPTER structure 732 * @portnum: IOC Port number 733 * 734 * Return: 0 for success 735 * -ENOMEM if no memory available 736 * -EPERM if not allowed due to ISR context 737 * -EAGAIN if no msg frames currently available 738 * -EFAULT for non-successful reply or no reply (timeout) 739 * -EINVAL portnum arg out of range (hardwired to two elements) 740 */ 741 static int 742 mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) 743 { 744 ConfigPageHeader_t hdr; 745 CONFIGPARMS cfg; 746 FCPortPage0_t *ppage0_alloc; 747 FCPortPage0_t *pp0dest; 748 dma_addr_t page0_dma; 749 int data_sz; 750 int copy_sz; 751 int rc; 752 int count = 400; 753 754 if (portnum > 1) 755 return -EINVAL; 756 757 /* Get FCPort Page 0 header */ 758 hdr.PageVersion = 0; 759 hdr.PageLength = 0; 760 hdr.PageNumber = 0; 761 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 762 cfg.cfghdr.hdr = &hdr; 763 cfg.physAddr = -1; 764 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 765 cfg.dir = 0; 766 cfg.pageAddr = portnum; 767 cfg.timeout = 0; 768 769 if ((rc = mpt_config(ioc, &cfg)) != 0) 770 return rc; 771 772 if (hdr.PageLength == 0) 773 return 0; 774 775 data_sz = hdr.PageLength * 4; 776 rc = -ENOMEM; 777 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma); 778 if (ppage0_alloc) { 779 780 try_again: 781 memset((u8 *)ppage0_alloc, 0, data_sz); 782 cfg.physAddr = page0_dma; 783 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 784 785 if ((rc = mpt_config(ioc, &cfg)) == 0) { 786 /* save the data */ 787 pp0dest = &ioc->fc_port_page0[portnum]; 788 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz); 789 memcpy(pp0dest, ppage0_alloc, copy_sz); 790 791 /* 792 * Normalize endianness of structure data, 793 * by byte-swapping all > 1 byte fields! 794 */ 795 pp0dest->Flags = le32_to_cpu(pp0dest->Flags); 796 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier); 797 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low); 798 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High); 799 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low); 800 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High); 801 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass); 802 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds); 803 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed); 804 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize); 805 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low); 806 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High); 807 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low); 808 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High); 809 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount); 810 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators); 811 812 /* 813 * if still doing discovery, 814 * hang loose a while until finished 815 */ 816 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) || 817 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE && 818 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) 819 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) { 820 if (count-- > 0) { 821 msleep(100); 822 goto try_again; 823 } 824 printk(MYIOC_s_INFO_FMT "Firmware discovery not" 825 " complete.\n", 826 ioc->name); 827 } 828 mptfc_display_port_link_speed(ioc, portnum, pp0dest); 829 } 830 831 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma); 832 } 833 834 return rc; 835 } 836 837 static int 838 mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum) 839 { 840 ConfigPageHeader_t hdr; 841 CONFIGPARMS cfg; 842 int rc; 843 844 if (portnum > 1) 845 return -EINVAL; 846 847 if (!(ioc->fc_data.fc_port_page1[portnum].data)) 848 return -EINVAL; 849 850 /* get fcport page 1 header */ 851 hdr.PageVersion = 0; 852 hdr.PageLength = 0; 853 hdr.PageNumber = 1; 854 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 855 cfg.cfghdr.hdr = &hdr; 856 cfg.physAddr = -1; 857 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 858 cfg.dir = 0; 859 cfg.pageAddr = portnum; 860 cfg.timeout = 0; 861 862 if ((rc = mpt_config(ioc, &cfg)) != 0) 863 return rc; 864 865 if (hdr.PageLength == 0) 866 return -ENODEV; 867 868 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz) 869 return -EINVAL; 870 871 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma; 872 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 873 cfg.dir = 1; 874 875 rc = mpt_config(ioc, &cfg); 876 877 return rc; 878 } 879 880 static int 881 mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum) 882 { 883 ConfigPageHeader_t hdr; 884 CONFIGPARMS cfg; 885 FCPortPage1_t *page1_alloc; 886 dma_addr_t page1_dma; 887 int data_sz; 888 int rc; 889 890 if (portnum > 1) 891 return -EINVAL; 892 893 /* get fcport page 1 header */ 894 hdr.PageVersion = 0; 895 hdr.PageLength = 0; 896 hdr.PageNumber = 1; 897 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 898 cfg.cfghdr.hdr = &hdr; 899 cfg.physAddr = -1; 900 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 901 cfg.dir = 0; 902 cfg.pageAddr = portnum; 903 cfg.timeout = 0; 904 905 if ((rc = mpt_config(ioc, &cfg)) != 0) 906 return rc; 907 908 if (hdr.PageLength == 0) 909 return -ENODEV; 910 911 start_over: 912 913 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) { 914 data_sz = hdr.PageLength * 4; 915 if (data_sz < sizeof(FCPortPage1_t)) 916 data_sz = sizeof(FCPortPage1_t); 917 918 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev, 919 data_sz, 920 &page1_dma); 921 if (!page1_alloc) 922 return -ENOMEM; 923 } 924 else { 925 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data; 926 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma; 927 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz; 928 if (hdr.PageLength * 4 > data_sz) { 929 ioc->fc_data.fc_port_page1[portnum].data = NULL; 930 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 931 page1_alloc, page1_dma); 932 goto start_over; 933 } 934 } 935 936 memset(page1_alloc,0,data_sz); 937 938 cfg.physAddr = page1_dma; 939 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 940 941 if ((rc = mpt_config(ioc, &cfg)) == 0) { 942 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc; 943 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz; 944 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma; 945 } 946 else { 947 ioc->fc_data.fc_port_page1[portnum].data = NULL; 948 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 949 page1_alloc, page1_dma); 950 } 951 952 return rc; 953 } 954 955 static void 956 mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc) 957 { 958 int ii; 959 FCPortPage1_t *pp1; 960 961 #define MPTFC_FW_DEVICE_TIMEOUT (1) 962 #define MPTFC_FW_IO_PEND_TIMEOUT (1) 963 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY) 964 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS) 965 966 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 967 if (mptfc_GetFcPortPage1(ioc, ii) != 0) 968 continue; 969 pp1 = ioc->fc_data.fc_port_page1[ii].data; 970 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT) 971 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT) 972 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS) 973 && ((pp1->Flags & OFF_FLAGS) == 0)) 974 continue; 975 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT; 976 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT; 977 pp1->Flags &= ~OFF_FLAGS; 978 pp1->Flags |= ON_FLAGS; 979 mptfc_WriteFcPortPage1(ioc, ii); 980 } 981 } 982 983 984 static void 985 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum) 986 { 987 unsigned class = 0; 988 unsigned cos = 0; 989 unsigned speed; 990 unsigned port_type; 991 unsigned port_state; 992 FCPortPage0_t *pp0; 993 struct Scsi_Host *sh; 994 char *sn; 995 996 /* don't know what to do as only one scsi (fc) host was allocated */ 997 if (portnum != 0) 998 return; 999 1000 pp0 = &ioc->fc_port_page0[portnum]; 1001 sh = ioc->sh; 1002 1003 sn = fc_host_symbolic_name(sh); 1004 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh", 1005 ioc->prod_name, 1006 MPT_FW_REV_MAGIC_ID_STRING, 1007 ioc->facts.FWVersion.Word); 1008 1009 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN; 1010 1011 fc_host_maxframe_size(sh) = pp0->MaxFrameSize; 1012 1013 fc_host_node_name(sh) = 1014 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1015 1016 fc_host_port_name(sh) = 1017 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low; 1018 1019 fc_host_port_id(sh) = pp0->PortIdentifier; 1020 1021 class = pp0->SupportedServiceClass; 1022 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1) 1023 cos |= FC_COS_CLASS1; 1024 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2) 1025 cos |= FC_COS_CLASS2; 1026 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3) 1027 cos |= FC_COS_CLASS3; 1028 fc_host_supported_classes(sh) = cos; 1029 1030 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT) 1031 speed = FC_PORTSPEED_1GBIT; 1032 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT) 1033 speed = FC_PORTSPEED_2GBIT; 1034 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT) 1035 speed = FC_PORTSPEED_4GBIT; 1036 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT) 1037 speed = FC_PORTSPEED_10GBIT; 1038 else 1039 speed = FC_PORTSPEED_UNKNOWN; 1040 fc_host_speed(sh) = speed; 1041 1042 speed = 0; 1043 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED) 1044 speed |= FC_PORTSPEED_1GBIT; 1045 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED) 1046 speed |= FC_PORTSPEED_2GBIT; 1047 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED) 1048 speed |= FC_PORTSPEED_4GBIT; 1049 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED) 1050 speed |= FC_PORTSPEED_10GBIT; 1051 fc_host_supported_speeds(sh) = speed; 1052 1053 port_state = FC_PORTSTATE_UNKNOWN; 1054 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE) 1055 port_state = FC_PORTSTATE_ONLINE; 1056 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE) 1057 port_state = FC_PORTSTATE_LINKDOWN; 1058 fc_host_port_state(sh) = port_state; 1059 1060 port_type = FC_PORTTYPE_UNKNOWN; 1061 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT) 1062 port_type = FC_PORTTYPE_PTP; 1063 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP) 1064 port_type = FC_PORTTYPE_LPORT; 1065 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP) 1066 port_type = FC_PORTTYPE_NLPORT; 1067 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT) 1068 port_type = FC_PORTTYPE_NPORT; 1069 fc_host_port_type(sh) = port_type; 1070 1071 fc_host_fabric_name(sh) = 1072 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ? 1073 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low : 1074 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1075 1076 } 1077 1078 static void 1079 mptfc_link_status_change(struct work_struct *work) 1080 { 1081 MPT_ADAPTER *ioc = 1082 container_of(work, MPT_ADAPTER, fc_rescan_work); 1083 int ii; 1084 1085 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) 1086 (void) mptfc_GetFcPortPage0(ioc, ii); 1087 1088 } 1089 1090 static void 1091 mptfc_setup_reset(struct work_struct *work) 1092 { 1093 MPT_ADAPTER *ioc = 1094 container_of(work, MPT_ADAPTER, fc_setup_reset_work); 1095 u64 pn; 1096 struct mptfc_rport_info *ri; 1097 struct scsi_target *starget; 1098 VirtTarget *vtarget; 1099 1100 /* reset about to happen, delete (block) all rports */ 1101 list_for_each_entry(ri, &ioc->fc_rports, list) { 1102 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1103 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED; 1104 fc_remote_port_delete(ri->rport); /* won't sleep */ 1105 ri->rport = NULL; 1106 starget = ri->starget; 1107 if (starget) { 1108 vtarget = starget->hostdata; 1109 if (vtarget) 1110 vtarget->deleted = 1; 1111 } 1112 1113 pn = (u64)ri->pg0.WWPN.High << 32 | 1114 (u64)ri->pg0.WWPN.Low; 1115 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1116 "mptfc_setup_reset.%d: %llx deleted\n", 1117 ioc->name, 1118 ioc->sh->host_no, 1119 (unsigned long long)pn)); 1120 } 1121 } 1122 } 1123 1124 static void 1125 mptfc_rescan_devices(struct work_struct *work) 1126 { 1127 MPT_ADAPTER *ioc = 1128 container_of(work, MPT_ADAPTER, fc_rescan_work); 1129 int ii; 1130 u64 pn; 1131 struct mptfc_rport_info *ri; 1132 struct scsi_target *starget; 1133 VirtTarget *vtarget; 1134 1135 /* start by tagging all ports as missing */ 1136 list_for_each_entry(ri, &ioc->fc_rports, list) { 1137 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1138 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; 1139 } 1140 } 1141 1142 /* 1143 * now rescan devices known to adapter, 1144 * will reregister existing rports 1145 */ 1146 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1147 (void) mptfc_GetFcPortPage0(ioc, ii); 1148 mptfc_init_host_attr(ioc, ii); /* refresh */ 1149 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev); 1150 } 1151 1152 /* delete devices still missing */ 1153 list_for_each_entry(ri, &ioc->fc_rports, list) { 1154 /* if newly missing, delete it */ 1155 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { 1156 1157 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| 1158 MPT_RPORT_INFO_FLAGS_MISSING); 1159 fc_remote_port_delete(ri->rport); /* won't sleep */ 1160 ri->rport = NULL; 1161 starget = ri->starget; 1162 if (starget) { 1163 vtarget = starget->hostdata; 1164 if (vtarget) 1165 vtarget->deleted = 1; 1166 } 1167 1168 pn = (u64)ri->pg0.WWPN.High << 32 | 1169 (u64)ri->pg0.WWPN.Low; 1170 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1171 "mptfc_rescan.%d: %llx deleted\n", 1172 ioc->name, 1173 ioc->sh->host_no, 1174 (unsigned long long)pn)); 1175 } 1176 } 1177 } 1178 1179 static int 1180 mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1181 { 1182 struct Scsi_Host *sh; 1183 MPT_SCSI_HOST *hd; 1184 MPT_ADAPTER *ioc; 1185 unsigned long flags; 1186 int ii; 1187 int numSGE = 0; 1188 int scale; 1189 int ioc_cap; 1190 int error=0; 1191 int r; 1192 1193 if ((r = mpt_attach(pdev,id)) != 0) 1194 return r; 1195 1196 ioc = pci_get_drvdata(pdev); 1197 ioc->DoneCtx = mptfcDoneCtx; 1198 ioc->TaskCtx = mptfcTaskCtx; 1199 ioc->InternalCtx = mptfcInternalCtx; 1200 1201 /* Added sanity check on readiness of the MPT adapter. 1202 */ 1203 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 1204 printk(MYIOC_s_WARN_FMT 1205 "Skipping because it's not operational!\n", 1206 ioc->name); 1207 error = -ENODEV; 1208 goto out_mptfc_probe; 1209 } 1210 1211 if (!ioc->active) { 1212 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 1213 ioc->name); 1214 error = -ENODEV; 1215 goto out_mptfc_probe; 1216 } 1217 1218 /* Sanity check - ensure at least 1 port is INITIATOR capable 1219 */ 1220 ioc_cap = 0; 1221 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1222 if (ioc->pfacts[ii].ProtocolFlags & 1223 MPI_PORTFACTS_PROTOCOL_INITIATOR) 1224 ioc_cap ++; 1225 } 1226 1227 if (!ioc_cap) { 1228 printk(MYIOC_s_WARN_FMT 1229 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", 1230 ioc->name, ioc); 1231 return 0; 1232 } 1233 1234 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST)); 1235 1236 if (!sh) { 1237 printk(MYIOC_s_WARN_FMT 1238 "Unable to register controller with SCSI subsystem\n", 1239 ioc->name); 1240 error = -1; 1241 goto out_mptfc_probe; 1242 } 1243 1244 spin_lock_init(&ioc->fc_rescan_work_lock); 1245 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices); 1246 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset); 1247 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change); 1248 1249 spin_lock_irqsave(&ioc->FreeQlock, flags); 1250 1251 /* Attach the SCSI Host to the IOC structure 1252 */ 1253 ioc->sh = sh; 1254 1255 sh->io_port = 0; 1256 sh->n_io_port = 0; 1257 sh->irq = 0; 1258 1259 /* set 16 byte cdb's */ 1260 sh->max_cmd_len = 16; 1261 1262 sh->max_id = ioc->pfacts->MaxDevices; 1263 sh->max_lun = max_lun; 1264 1265 /* Required entry. 1266 */ 1267 sh->unique_id = ioc->id; 1268 1269 /* Verify that we won't exceed the maximum 1270 * number of chain buffers 1271 * We can optimize: ZZ = req_sz/sizeof(SGE) 1272 * For 32bit SGE's: 1273 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 1274 * + (req_sz - 64)/sizeof(SGE) 1275 * A slightly different algorithm is required for 1276 * 64bit SGEs. 1277 */ 1278 scale = ioc->req_sz/ioc->SGE_size; 1279 if (ioc->sg_addr_size == sizeof(u64)) { 1280 numSGE = (scale - 1) * 1281 (ioc->facts.MaxChainDepth-1) + scale + 1282 (ioc->req_sz - 60) / ioc->SGE_size; 1283 } else { 1284 numSGE = 1 + (scale - 1) * 1285 (ioc->facts.MaxChainDepth-1) + scale + 1286 (ioc->req_sz - 64) / ioc->SGE_size; 1287 } 1288 1289 if (numSGE < sh->sg_tablesize) { 1290 /* Reset this value */ 1291 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1292 "Resetting sg_tablesize to %d from %d\n", 1293 ioc->name, numSGE, sh->sg_tablesize)); 1294 sh->sg_tablesize = numSGE; 1295 } 1296 1297 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1298 1299 hd = shost_priv(sh); 1300 hd->ioc = ioc; 1301 1302 /* SCSI needs scsi_cmnd lookup table! 1303 * (with size equal to req_depth*PtrSz!) 1304 */ 1305 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); 1306 if (!ioc->ScsiLookup) { 1307 error = -ENOMEM; 1308 goto out_mptfc_probe; 1309 } 1310 spin_lock_init(&ioc->scsi_lookup_lock); 1311 1312 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n", 1313 ioc->name, ioc->ScsiLookup)); 1314 1315 hd->last_queue_full = 0; 1316 1317 sh->transportt = mptfc_transport_template; 1318 error = scsi_add_host (sh, &ioc->pcidev->dev); 1319 if(error) { 1320 dprintk(ioc, printk(MYIOC_s_ERR_FMT 1321 "scsi_add_host failed\n", ioc->name)); 1322 goto out_mptfc_probe; 1323 } 1324 1325 /* initialize workqueue */ 1326 1327 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name), 1328 "mptfc_wq_%d", sh->host_no); 1329 ioc->fc_rescan_work_q = 1330 create_singlethread_workqueue(ioc->fc_rescan_work_q_name); 1331 if (!ioc->fc_rescan_work_q) 1332 goto out_mptfc_probe; 1333 1334 /* 1335 * Pre-fetch FC port WWN and stuff... 1336 * (FCPortPage0_t stuff) 1337 */ 1338 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1339 (void) mptfc_GetFcPortPage0(ioc, ii); 1340 } 1341 mptfc_SetFcPortPage1_defaults(ioc); 1342 1343 /* 1344 * scan for rports - 1345 * by doing it via the workqueue, some locking is eliminated 1346 */ 1347 1348 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); 1349 flush_workqueue(ioc->fc_rescan_work_q); 1350 1351 return 0; 1352 1353 out_mptfc_probe: 1354 1355 mptscsih_remove(pdev); 1356 return error; 1357 } 1358 1359 static struct pci_driver mptfc_driver = { 1360 .name = "mptfc", 1361 .id_table = mptfc_pci_table, 1362 .probe = mptfc_probe, 1363 .remove = __devexit_p(mptfc_remove), 1364 .shutdown = mptscsih_shutdown, 1365 #ifdef CONFIG_PM 1366 .suspend = mptscsih_suspend, 1367 .resume = mptscsih_resume, 1368 #endif 1369 }; 1370 1371 static int 1372 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 1373 { 1374 MPT_SCSI_HOST *hd; 1375 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 1376 unsigned long flags; 1377 int rc=1; 1378 1379 if (ioc->bus_type != FC) 1380 return 0; 1381 1382 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n", 1383 ioc->name, event)); 1384 1385 if (ioc->sh == NULL || 1386 ((hd = shost_priv(ioc->sh)) == NULL)) 1387 return 1; 1388 1389 switch (event) { 1390 case MPI_EVENT_RESCAN: 1391 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1392 if (ioc->fc_rescan_work_q) { 1393 queue_work(ioc->fc_rescan_work_q, 1394 &ioc->fc_rescan_work); 1395 } 1396 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1397 break; 1398 case MPI_EVENT_LINK_STATUS_CHANGE: 1399 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1400 if (ioc->fc_rescan_work_q) { 1401 queue_work(ioc->fc_rescan_work_q, 1402 &ioc->fc_lsc_work); 1403 } 1404 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1405 break; 1406 default: 1407 rc = mptscsih_event_process(ioc,pEvReply); 1408 break; 1409 } 1410 return rc; 1411 } 1412 1413 static int 1414 mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 1415 { 1416 int rc; 1417 unsigned long flags; 1418 1419 rc = mptscsih_ioc_reset(ioc,reset_phase); 1420 if ((ioc->bus_type != FC) || (!rc)) 1421 return rc; 1422 1423 1424 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1425 ": IOC %s_reset routed to FC host driver!\n",ioc->name, 1426 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( 1427 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); 1428 1429 if (reset_phase == MPT_IOC_SETUP_RESET) { 1430 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1431 if (ioc->fc_rescan_work_q) { 1432 queue_work(ioc->fc_rescan_work_q, 1433 &ioc->fc_setup_reset_work); 1434 } 1435 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1436 } 1437 1438 else if (reset_phase == MPT_IOC_PRE_RESET) { 1439 } 1440 1441 else { /* MPT_IOC_POST_RESET */ 1442 mptfc_SetFcPortPage1_defaults(ioc); 1443 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1444 if (ioc->fc_rescan_work_q) { 1445 queue_work(ioc->fc_rescan_work_q, 1446 &ioc->fc_rescan_work); 1447 } 1448 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1449 } 1450 return 1; 1451 } 1452 1453 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1454 /** 1455 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer. 1456 * 1457 * Returns 0 for success, non-zero for failure. 1458 */ 1459 static int __init 1460 mptfc_init(void) 1461 { 1462 int error; 1463 1464 show_mptmod_ver(my_NAME, my_VERSION); 1465 1466 /* sanity check module parameters */ 1467 if (mptfc_dev_loss_tmo <= 0) 1468 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; 1469 1470 mptfc_transport_template = 1471 fc_attach_transport(&mptfc_transport_functions); 1472 1473 if (!mptfc_transport_template) 1474 return -ENODEV; 1475 1476 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER, 1477 "mptscsih_scandv_complete"); 1478 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER, 1479 "mptscsih_scandv_complete"); 1480 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER, 1481 "mptscsih_scandv_complete"); 1482 1483 mpt_event_register(mptfcDoneCtx, mptfc_event_process); 1484 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset); 1485 1486 error = pci_register_driver(&mptfc_driver); 1487 if (error) 1488 fc_release_transport(mptfc_transport_template); 1489 1490 return error; 1491 } 1492 1493 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1494 /** 1495 * mptfc_remove - Remove fc infrastructure for devices 1496 * @pdev: Pointer to pci_dev structure 1497 * 1498 */ 1499 static void __devexit 1500 mptfc_remove(struct pci_dev *pdev) 1501 { 1502 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1503 struct mptfc_rport_info *p, *n; 1504 struct workqueue_struct *work_q; 1505 unsigned long flags; 1506 int ii; 1507 1508 /* destroy workqueue */ 1509 if ((work_q=ioc->fc_rescan_work_q)) { 1510 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1511 ioc->fc_rescan_work_q = NULL; 1512 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1513 destroy_workqueue(work_q); 1514 } 1515 1516 fc_remove_host(ioc->sh); 1517 1518 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) { 1519 list_del(&p->list); 1520 kfree(p); 1521 } 1522 1523 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 1524 if (ioc->fc_data.fc_port_page1[ii].data) { 1525 pci_free_consistent(ioc->pcidev, 1526 ioc->fc_data.fc_port_page1[ii].pg_sz, 1527 (u8 *) ioc->fc_data.fc_port_page1[ii].data, 1528 ioc->fc_data.fc_port_page1[ii].dma); 1529 ioc->fc_data.fc_port_page1[ii].data = NULL; 1530 } 1531 } 1532 1533 mptscsih_remove(pdev); 1534 } 1535 1536 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1537 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1538 /** 1539 * mptfc_exit - Unregisters MPT adapter(s) 1540 * 1541 */ 1542 static void __exit 1543 mptfc_exit(void) 1544 { 1545 pci_unregister_driver(&mptfc_driver); 1546 fc_release_transport(mptfc_transport_template); 1547 1548 mpt_reset_deregister(mptfcDoneCtx); 1549 mpt_event_deregister(mptfcDoneCtx); 1550 1551 mpt_deregister(mptfcInternalCtx); 1552 mpt_deregister(mptfcTaskCtx); 1553 mpt_deregister(mptfcDoneCtx); 1554 } 1555 1556 module_init(mptfc_init); 1557 module_exit(mptfc_exit); 1558