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 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 } 485 } 486 *((struct mptfc_rport_info **)rport->dd_data) = ri; 487 /* scan will be scheduled once rport becomes a target */ 488 fc_remote_port_rolechg(rport,roles); 489 490 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 491 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 492 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 493 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, " 494 "rport tid %d, tmo %d\n", 495 ioc->name, 496 ioc->sh->host_no, 497 pg0->PortIdentifier, 498 (unsigned long long)nn, 499 (unsigned long long)pn, 500 pg0->CurrentTargetID, 501 ri->rport->scsi_target_id, 502 ri->rport->dev_loss_tmo)); 503 } else { 504 list_del(&ri->list); 505 kfree(ri); 506 ri = NULL; 507 } 508 } 509 } 510 511 /* 512 * OS entry point to allow for host driver to free allocated memory 513 * Called if no device present or device being unloaded 514 */ 515 static void 516 mptfc_target_destroy(struct scsi_target *starget) 517 { 518 struct fc_rport *rport; 519 struct mptfc_rport_info *ri; 520 521 rport = starget_to_rport(starget); 522 if (rport) { 523 ri = *((struct mptfc_rport_info **)rport->dd_data); 524 if (ri) /* better be! */ 525 ri->starget = NULL; 526 } 527 if (starget->hostdata) 528 kfree(starget->hostdata); 529 starget->hostdata = NULL; 530 } 531 532 /* 533 * OS entry point to allow host driver to alloc memory 534 * for each scsi target. Called once per device the bus scan. 535 * Return non-zero if allocation fails. 536 */ 537 static int 538 mptfc_target_alloc(struct scsi_target *starget) 539 { 540 VirtTarget *vtarget; 541 struct fc_rport *rport; 542 struct mptfc_rport_info *ri; 543 int rc; 544 545 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); 546 if (!vtarget) 547 return -ENOMEM; 548 starget->hostdata = vtarget; 549 550 rc = -ENODEV; 551 rport = starget_to_rport(starget); 552 if (rport) { 553 ri = *((struct mptfc_rport_info **)rport->dd_data); 554 if (ri) { /* better be! */ 555 vtarget->id = ri->pg0.CurrentTargetID; 556 vtarget->channel = ri->pg0.CurrentBus; 557 ri->starget = starget; 558 rc = 0; 559 } 560 } 561 if (rc != 0) { 562 kfree(vtarget); 563 starget->hostdata = NULL; 564 } 565 566 return rc; 567 } 568 /* 569 * mptfc_dump_lun_info 570 * @ioc 571 * @rport 572 * @sdev 573 * 574 */ 575 static void 576 mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev, 577 VirtTarget *vtarget) 578 { 579 u64 nn, pn; 580 struct mptfc_rport_info *ri; 581 582 ri = *((struct mptfc_rport_info **)rport->dd_data); 583 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 584 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 585 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 586 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, " 587 "CurrentTargetID %d, %x %llx %llx\n", 588 ioc->name, 589 sdev->host->host_no, 590 vtarget->num_luns, 591 sdev->id, ri->pg0.CurrentTargetID, 592 ri->pg0.PortIdentifier, 593 (unsigned long long)pn, 594 (unsigned long long)nn)); 595 } 596 597 598 /* 599 * OS entry point to allow host driver to alloc memory 600 * for each scsi device. Called once per device the bus scan. 601 * Return non-zero if allocation fails. 602 * Init memory once per LUN. 603 */ 604 static int 605 mptfc_slave_alloc(struct scsi_device *sdev) 606 { 607 MPT_SCSI_HOST *hd; 608 VirtTarget *vtarget; 609 VirtDevice *vdevice; 610 struct scsi_target *starget; 611 struct fc_rport *rport; 612 MPT_ADAPTER *ioc; 613 614 starget = scsi_target(sdev); 615 rport = starget_to_rport(starget); 616 617 if (!rport || fc_remote_port_chkready(rport)) 618 return -ENXIO; 619 620 hd = shost_priv(sdev->host); 621 ioc = hd->ioc; 622 623 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL); 624 if (!vdevice) { 625 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", 626 ioc->name, sizeof(VirtDevice)); 627 return -ENOMEM; 628 } 629 630 631 sdev->hostdata = vdevice; 632 vtarget = starget->hostdata; 633 634 if (vtarget->num_luns == 0) { 635 vtarget->ioc_id = ioc->id; 636 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES; 637 } 638 639 vdevice->vtarget = vtarget; 640 vdevice->lun = sdev->lun; 641 642 vtarget->num_luns++; 643 644 645 mptfc_dump_lun_info(ioc, rport, sdev, vtarget); 646 647 return 0; 648 } 649 650 static int 651 mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) 652 { 653 struct mptfc_rport_info *ri; 654 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); 655 int err; 656 VirtDevice *vdevice = SCpnt->device->hostdata; 657 658 if (!vdevice || !vdevice->vtarget) { 659 SCpnt->result = DID_NO_CONNECT << 16; 660 done(SCpnt); 661 return 0; 662 } 663 664 err = fc_remote_port_chkready(rport); 665 if (unlikely(err)) { 666 SCpnt->result = err; 667 done(SCpnt); 668 return 0; 669 } 670 671 /* dd_data is null until finished adding target */ 672 ri = *((struct mptfc_rport_info **)rport->dd_data); 673 if (unlikely(!ri)) { 674 SCpnt->result = DID_IMM_RETRY << 16; 675 done(SCpnt); 676 return 0; 677 } 678 679 return mptscsih_qcmd(SCpnt,done); 680 } 681 682 /* 683 * mptfc_display_port_link_speed - displaying link speed 684 * @ioc: Pointer to MPT_ADAPTER structure 685 * @portnum: IOC Port number 686 * @pp0dest: port page0 data payload 687 * 688 */ 689 static void 690 mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest) 691 { 692 u8 old_speed, new_speed, state; 693 char *old, *new; 694 695 if (portnum >= 2) 696 return; 697 698 old_speed = ioc->fc_link_speed[portnum]; 699 new_speed = pp0dest->CurrentSpeed; 700 state = pp0dest->PortState; 701 702 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE && 703 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) { 704 705 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : 706 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : 707 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : 708 "Unknown"; 709 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : 710 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : 711 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : 712 "Unknown"; 713 if (old_speed == 0) 714 printk(MYIOC_s_NOTE_FMT 715 "FC Link Established, Speed = %s\n", 716 ioc->name, new); 717 else if (old_speed != new_speed) 718 printk(MYIOC_s_WARN_FMT 719 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n", 720 ioc->name, old, new); 721 722 ioc->fc_link_speed[portnum] = new_speed; 723 } 724 } 725 726 /* 727 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0. 728 * @ioc: Pointer to MPT_ADAPTER structure 729 * @portnum: IOC Port number 730 * 731 * Return: 0 for success 732 * -ENOMEM if no memory available 733 * -EPERM if not allowed due to ISR context 734 * -EAGAIN if no msg frames currently available 735 * -EFAULT for non-successful reply or no reply (timeout) 736 * -EINVAL portnum arg out of range (hardwired to two elements) 737 */ 738 static int 739 mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) 740 { 741 ConfigPageHeader_t hdr; 742 CONFIGPARMS cfg; 743 FCPortPage0_t *ppage0_alloc; 744 FCPortPage0_t *pp0dest; 745 dma_addr_t page0_dma; 746 int data_sz; 747 int copy_sz; 748 int rc; 749 int count = 400; 750 751 if (portnum > 1) 752 return -EINVAL; 753 754 /* Get FCPort Page 0 header */ 755 hdr.PageVersion = 0; 756 hdr.PageLength = 0; 757 hdr.PageNumber = 0; 758 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 759 cfg.cfghdr.hdr = &hdr; 760 cfg.physAddr = -1; 761 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 762 cfg.dir = 0; 763 cfg.pageAddr = portnum; 764 cfg.timeout = 0; 765 766 if ((rc = mpt_config(ioc, &cfg)) != 0) 767 return rc; 768 769 if (hdr.PageLength == 0) 770 return 0; 771 772 data_sz = hdr.PageLength * 4; 773 rc = -ENOMEM; 774 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma); 775 if (ppage0_alloc) { 776 777 try_again: 778 memset((u8 *)ppage0_alloc, 0, data_sz); 779 cfg.physAddr = page0_dma; 780 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 781 782 if ((rc = mpt_config(ioc, &cfg)) == 0) { 783 /* save the data */ 784 pp0dest = &ioc->fc_port_page0[portnum]; 785 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz); 786 memcpy(pp0dest, ppage0_alloc, copy_sz); 787 788 /* 789 * Normalize endianness of structure data, 790 * by byte-swapping all > 1 byte fields! 791 */ 792 pp0dest->Flags = le32_to_cpu(pp0dest->Flags); 793 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier); 794 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low); 795 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High); 796 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low); 797 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High); 798 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass); 799 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds); 800 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed); 801 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize); 802 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low); 803 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High); 804 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low); 805 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High); 806 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount); 807 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators); 808 809 /* 810 * if still doing discovery, 811 * hang loose a while until finished 812 */ 813 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) || 814 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE && 815 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) 816 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) { 817 if (count-- > 0) { 818 msleep(100); 819 goto try_again; 820 } 821 printk(MYIOC_s_INFO_FMT "Firmware discovery not" 822 " complete.\n", 823 ioc->name); 824 } 825 mptfc_display_port_link_speed(ioc, portnum, pp0dest); 826 } 827 828 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma); 829 } 830 831 return rc; 832 } 833 834 static int 835 mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum) 836 { 837 ConfigPageHeader_t hdr; 838 CONFIGPARMS cfg; 839 int rc; 840 841 if (portnum > 1) 842 return -EINVAL; 843 844 if (!(ioc->fc_data.fc_port_page1[portnum].data)) 845 return -EINVAL; 846 847 /* get fcport page 1 header */ 848 hdr.PageVersion = 0; 849 hdr.PageLength = 0; 850 hdr.PageNumber = 1; 851 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 852 cfg.cfghdr.hdr = &hdr; 853 cfg.physAddr = -1; 854 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 855 cfg.dir = 0; 856 cfg.pageAddr = portnum; 857 cfg.timeout = 0; 858 859 if ((rc = mpt_config(ioc, &cfg)) != 0) 860 return rc; 861 862 if (hdr.PageLength == 0) 863 return -ENODEV; 864 865 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz) 866 return -EINVAL; 867 868 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma; 869 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 870 cfg.dir = 1; 871 872 rc = mpt_config(ioc, &cfg); 873 874 return rc; 875 } 876 877 static int 878 mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum) 879 { 880 ConfigPageHeader_t hdr; 881 CONFIGPARMS cfg; 882 FCPortPage1_t *page1_alloc; 883 dma_addr_t page1_dma; 884 int data_sz; 885 int rc; 886 887 if (portnum > 1) 888 return -EINVAL; 889 890 /* get fcport page 1 header */ 891 hdr.PageVersion = 0; 892 hdr.PageLength = 0; 893 hdr.PageNumber = 1; 894 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 895 cfg.cfghdr.hdr = &hdr; 896 cfg.physAddr = -1; 897 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 898 cfg.dir = 0; 899 cfg.pageAddr = portnum; 900 cfg.timeout = 0; 901 902 if ((rc = mpt_config(ioc, &cfg)) != 0) 903 return rc; 904 905 if (hdr.PageLength == 0) 906 return -ENODEV; 907 908 start_over: 909 910 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) { 911 data_sz = hdr.PageLength * 4; 912 if (data_sz < sizeof(FCPortPage1_t)) 913 data_sz = sizeof(FCPortPage1_t); 914 915 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev, 916 data_sz, 917 &page1_dma); 918 if (!page1_alloc) 919 return -ENOMEM; 920 } 921 else { 922 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data; 923 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma; 924 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz; 925 if (hdr.PageLength * 4 > data_sz) { 926 ioc->fc_data.fc_port_page1[portnum].data = NULL; 927 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 928 page1_alloc, page1_dma); 929 goto start_over; 930 } 931 } 932 933 memset(page1_alloc,0,data_sz); 934 935 cfg.physAddr = page1_dma; 936 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 937 938 if ((rc = mpt_config(ioc, &cfg)) == 0) { 939 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc; 940 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz; 941 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma; 942 } 943 else { 944 ioc->fc_data.fc_port_page1[portnum].data = NULL; 945 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 946 page1_alloc, page1_dma); 947 } 948 949 return rc; 950 } 951 952 static void 953 mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc) 954 { 955 int ii; 956 FCPortPage1_t *pp1; 957 958 #define MPTFC_FW_DEVICE_TIMEOUT (1) 959 #define MPTFC_FW_IO_PEND_TIMEOUT (1) 960 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY) 961 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS) 962 963 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 964 if (mptfc_GetFcPortPage1(ioc, ii) != 0) 965 continue; 966 pp1 = ioc->fc_data.fc_port_page1[ii].data; 967 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT) 968 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT) 969 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS) 970 && ((pp1->Flags & OFF_FLAGS) == 0)) 971 continue; 972 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT; 973 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT; 974 pp1->Flags &= ~OFF_FLAGS; 975 pp1->Flags |= ON_FLAGS; 976 mptfc_WriteFcPortPage1(ioc, ii); 977 } 978 } 979 980 981 static void 982 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum) 983 { 984 unsigned class = 0; 985 unsigned cos = 0; 986 unsigned speed; 987 unsigned port_type; 988 unsigned port_state; 989 FCPortPage0_t *pp0; 990 struct Scsi_Host *sh; 991 char *sn; 992 993 /* don't know what to do as only one scsi (fc) host was allocated */ 994 if (portnum != 0) 995 return; 996 997 pp0 = &ioc->fc_port_page0[portnum]; 998 sh = ioc->sh; 999 1000 sn = fc_host_symbolic_name(sh); 1001 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh", 1002 ioc->prod_name, 1003 MPT_FW_REV_MAGIC_ID_STRING, 1004 ioc->facts.FWVersion.Word); 1005 1006 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN; 1007 1008 fc_host_maxframe_size(sh) = pp0->MaxFrameSize; 1009 1010 fc_host_node_name(sh) = 1011 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1012 1013 fc_host_port_name(sh) = 1014 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low; 1015 1016 fc_host_port_id(sh) = pp0->PortIdentifier; 1017 1018 class = pp0->SupportedServiceClass; 1019 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1) 1020 cos |= FC_COS_CLASS1; 1021 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2) 1022 cos |= FC_COS_CLASS2; 1023 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3) 1024 cos |= FC_COS_CLASS3; 1025 fc_host_supported_classes(sh) = cos; 1026 1027 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT) 1028 speed = FC_PORTSPEED_1GBIT; 1029 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT) 1030 speed = FC_PORTSPEED_2GBIT; 1031 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT) 1032 speed = FC_PORTSPEED_4GBIT; 1033 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT) 1034 speed = FC_PORTSPEED_10GBIT; 1035 else 1036 speed = FC_PORTSPEED_UNKNOWN; 1037 fc_host_speed(sh) = speed; 1038 1039 speed = 0; 1040 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED) 1041 speed |= FC_PORTSPEED_1GBIT; 1042 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED) 1043 speed |= FC_PORTSPEED_2GBIT; 1044 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED) 1045 speed |= FC_PORTSPEED_4GBIT; 1046 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED) 1047 speed |= FC_PORTSPEED_10GBIT; 1048 fc_host_supported_speeds(sh) = speed; 1049 1050 port_state = FC_PORTSTATE_UNKNOWN; 1051 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE) 1052 port_state = FC_PORTSTATE_ONLINE; 1053 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE) 1054 port_state = FC_PORTSTATE_LINKDOWN; 1055 fc_host_port_state(sh) = port_state; 1056 1057 port_type = FC_PORTTYPE_UNKNOWN; 1058 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT) 1059 port_type = FC_PORTTYPE_PTP; 1060 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP) 1061 port_type = FC_PORTTYPE_LPORT; 1062 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP) 1063 port_type = FC_PORTTYPE_NLPORT; 1064 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT) 1065 port_type = FC_PORTTYPE_NPORT; 1066 fc_host_port_type(sh) = port_type; 1067 1068 fc_host_fabric_name(sh) = 1069 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ? 1070 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low : 1071 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1072 1073 } 1074 1075 static void 1076 mptfc_link_status_change(struct work_struct *work) 1077 { 1078 MPT_ADAPTER *ioc = 1079 container_of(work, MPT_ADAPTER, fc_rescan_work); 1080 int ii; 1081 1082 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) 1083 (void) mptfc_GetFcPortPage0(ioc, ii); 1084 1085 } 1086 1087 static void 1088 mptfc_setup_reset(struct work_struct *work) 1089 { 1090 MPT_ADAPTER *ioc = 1091 container_of(work, MPT_ADAPTER, fc_setup_reset_work); 1092 u64 pn; 1093 struct mptfc_rport_info *ri; 1094 1095 /* reset about to happen, delete (block) all rports */ 1096 list_for_each_entry(ri, &ioc->fc_rports, list) { 1097 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1098 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED; 1099 fc_remote_port_delete(ri->rport); /* won't sleep */ 1100 ri->rport = NULL; 1101 1102 pn = (u64)ri->pg0.WWPN.High << 32 | 1103 (u64)ri->pg0.WWPN.Low; 1104 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1105 "mptfc_setup_reset.%d: %llx deleted\n", 1106 ioc->name, 1107 ioc->sh->host_no, 1108 (unsigned long long)pn)); 1109 } 1110 } 1111 } 1112 1113 static void 1114 mptfc_rescan_devices(struct work_struct *work) 1115 { 1116 MPT_ADAPTER *ioc = 1117 container_of(work, MPT_ADAPTER, fc_rescan_work); 1118 int ii; 1119 u64 pn; 1120 struct mptfc_rport_info *ri; 1121 1122 /* start by tagging all ports as missing */ 1123 list_for_each_entry(ri, &ioc->fc_rports, list) { 1124 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1125 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; 1126 } 1127 } 1128 1129 /* 1130 * now rescan devices known to adapter, 1131 * will reregister existing rports 1132 */ 1133 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1134 (void) mptfc_GetFcPortPage0(ioc, ii); 1135 mptfc_init_host_attr(ioc, ii); /* refresh */ 1136 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev); 1137 } 1138 1139 /* delete devices still missing */ 1140 list_for_each_entry(ri, &ioc->fc_rports, list) { 1141 /* if newly missing, delete it */ 1142 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { 1143 1144 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| 1145 MPT_RPORT_INFO_FLAGS_MISSING); 1146 fc_remote_port_delete(ri->rport); /* won't sleep */ 1147 ri->rport = NULL; 1148 1149 pn = (u64)ri->pg0.WWPN.High << 32 | 1150 (u64)ri->pg0.WWPN.Low; 1151 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1152 "mptfc_rescan.%d: %llx deleted\n", 1153 ioc->name, 1154 ioc->sh->host_no, 1155 (unsigned long long)pn)); 1156 } 1157 } 1158 } 1159 1160 static int 1161 mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1162 { 1163 struct Scsi_Host *sh; 1164 MPT_SCSI_HOST *hd; 1165 MPT_ADAPTER *ioc; 1166 unsigned long flags; 1167 int ii; 1168 int numSGE = 0; 1169 int scale; 1170 int ioc_cap; 1171 int error=0; 1172 int r; 1173 1174 if ((r = mpt_attach(pdev,id)) != 0) 1175 return r; 1176 1177 ioc = pci_get_drvdata(pdev); 1178 ioc->DoneCtx = mptfcDoneCtx; 1179 ioc->TaskCtx = mptfcTaskCtx; 1180 ioc->InternalCtx = mptfcInternalCtx; 1181 1182 /* Added sanity check on readiness of the MPT adapter. 1183 */ 1184 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 1185 printk(MYIOC_s_WARN_FMT 1186 "Skipping because it's not operational!\n", 1187 ioc->name); 1188 error = -ENODEV; 1189 goto out_mptfc_probe; 1190 } 1191 1192 if (!ioc->active) { 1193 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 1194 ioc->name); 1195 error = -ENODEV; 1196 goto out_mptfc_probe; 1197 } 1198 1199 /* Sanity check - ensure at least 1 port is INITIATOR capable 1200 */ 1201 ioc_cap = 0; 1202 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1203 if (ioc->pfacts[ii].ProtocolFlags & 1204 MPI_PORTFACTS_PROTOCOL_INITIATOR) 1205 ioc_cap ++; 1206 } 1207 1208 if (!ioc_cap) { 1209 printk(MYIOC_s_WARN_FMT 1210 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", 1211 ioc->name, ioc); 1212 return 0; 1213 } 1214 1215 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST)); 1216 1217 if (!sh) { 1218 printk(MYIOC_s_WARN_FMT 1219 "Unable to register controller with SCSI subsystem\n", 1220 ioc->name); 1221 error = -1; 1222 goto out_mptfc_probe; 1223 } 1224 1225 spin_lock_init(&ioc->fc_rescan_work_lock); 1226 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices); 1227 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset); 1228 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change); 1229 1230 spin_lock_irqsave(&ioc->FreeQlock, flags); 1231 1232 /* Attach the SCSI Host to the IOC structure 1233 */ 1234 ioc->sh = sh; 1235 1236 sh->io_port = 0; 1237 sh->n_io_port = 0; 1238 sh->irq = 0; 1239 1240 /* set 16 byte cdb's */ 1241 sh->max_cmd_len = 16; 1242 1243 sh->max_id = ioc->pfacts->MaxDevices; 1244 sh->max_lun = max_lun; 1245 1246 /* Required entry. 1247 */ 1248 sh->unique_id = ioc->id; 1249 1250 /* Verify that we won't exceed the maximum 1251 * number of chain buffers 1252 * We can optimize: ZZ = req_sz/sizeof(SGE) 1253 * For 32bit SGE's: 1254 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 1255 * + (req_sz - 64)/sizeof(SGE) 1256 * A slightly different algorithm is required for 1257 * 64bit SGEs. 1258 */ 1259 scale = ioc->req_sz/ioc->SGE_size; 1260 if (ioc->sg_addr_size == sizeof(u64)) { 1261 numSGE = (scale - 1) * 1262 (ioc->facts.MaxChainDepth-1) + scale + 1263 (ioc->req_sz - 60) / ioc->SGE_size; 1264 } else { 1265 numSGE = 1 + (scale - 1) * 1266 (ioc->facts.MaxChainDepth-1) + scale + 1267 (ioc->req_sz - 64) / ioc->SGE_size; 1268 } 1269 1270 if (numSGE < sh->sg_tablesize) { 1271 /* Reset this value */ 1272 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1273 "Resetting sg_tablesize to %d from %d\n", 1274 ioc->name, numSGE, sh->sg_tablesize)); 1275 sh->sg_tablesize = numSGE; 1276 } 1277 1278 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1279 1280 hd = shost_priv(sh); 1281 hd->ioc = ioc; 1282 1283 /* SCSI needs scsi_cmnd lookup table! 1284 * (with size equal to req_depth*PtrSz!) 1285 */ 1286 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); 1287 if (!ioc->ScsiLookup) { 1288 error = -ENOMEM; 1289 goto out_mptfc_probe; 1290 } 1291 spin_lock_init(&ioc->scsi_lookup_lock); 1292 1293 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n", 1294 ioc->name, ioc->ScsiLookup)); 1295 1296 hd->last_queue_full = 0; 1297 1298 sh->transportt = mptfc_transport_template; 1299 error = scsi_add_host (sh, &ioc->pcidev->dev); 1300 if(error) { 1301 dprintk(ioc, printk(MYIOC_s_ERR_FMT 1302 "scsi_add_host failed\n", ioc->name)); 1303 goto out_mptfc_probe; 1304 } 1305 1306 /* initialize workqueue */ 1307 1308 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name), 1309 "mptfc_wq_%d", sh->host_no); 1310 ioc->fc_rescan_work_q = 1311 create_singlethread_workqueue(ioc->fc_rescan_work_q_name); 1312 if (!ioc->fc_rescan_work_q) 1313 goto out_mptfc_probe; 1314 1315 /* 1316 * Pre-fetch FC port WWN and stuff... 1317 * (FCPortPage0_t stuff) 1318 */ 1319 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1320 (void) mptfc_GetFcPortPage0(ioc, ii); 1321 } 1322 mptfc_SetFcPortPage1_defaults(ioc); 1323 1324 /* 1325 * scan for rports - 1326 * by doing it via the workqueue, some locking is eliminated 1327 */ 1328 1329 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); 1330 flush_workqueue(ioc->fc_rescan_work_q); 1331 1332 return 0; 1333 1334 out_mptfc_probe: 1335 1336 mptscsih_remove(pdev); 1337 return error; 1338 } 1339 1340 static struct pci_driver mptfc_driver = { 1341 .name = "mptfc", 1342 .id_table = mptfc_pci_table, 1343 .probe = mptfc_probe, 1344 .remove = __devexit_p(mptfc_remove), 1345 .shutdown = mptscsih_shutdown, 1346 #ifdef CONFIG_PM 1347 .suspend = mptscsih_suspend, 1348 .resume = mptscsih_resume, 1349 #endif 1350 }; 1351 1352 static int 1353 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 1354 { 1355 MPT_SCSI_HOST *hd; 1356 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 1357 unsigned long flags; 1358 int rc=1; 1359 1360 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n", 1361 ioc->name, event)); 1362 1363 if (ioc->sh == NULL || 1364 ((hd = shost_priv(ioc->sh)) == NULL)) 1365 return 1; 1366 1367 switch (event) { 1368 case MPI_EVENT_RESCAN: 1369 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1370 if (ioc->fc_rescan_work_q) { 1371 queue_work(ioc->fc_rescan_work_q, 1372 &ioc->fc_rescan_work); 1373 } 1374 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1375 break; 1376 case MPI_EVENT_LINK_STATUS_CHANGE: 1377 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1378 if (ioc->fc_rescan_work_q) { 1379 queue_work(ioc->fc_rescan_work_q, 1380 &ioc->fc_lsc_work); 1381 } 1382 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1383 break; 1384 default: 1385 rc = mptscsih_event_process(ioc,pEvReply); 1386 break; 1387 } 1388 return rc; 1389 } 1390 1391 static int 1392 mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 1393 { 1394 int rc; 1395 unsigned long flags; 1396 1397 rc = mptscsih_ioc_reset(ioc,reset_phase); 1398 if (rc == 0) 1399 return rc; 1400 1401 1402 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1403 ": IOC %s_reset routed to FC host driver!\n",ioc->name, 1404 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( 1405 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); 1406 1407 if (reset_phase == MPT_IOC_SETUP_RESET) { 1408 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1409 if (ioc->fc_rescan_work_q) { 1410 queue_work(ioc->fc_rescan_work_q, 1411 &ioc->fc_setup_reset_work); 1412 } 1413 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1414 } 1415 1416 else if (reset_phase == MPT_IOC_PRE_RESET) { 1417 } 1418 1419 else { /* MPT_IOC_POST_RESET */ 1420 mptfc_SetFcPortPage1_defaults(ioc); 1421 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1422 if (ioc->fc_rescan_work_q) { 1423 queue_work(ioc->fc_rescan_work_q, 1424 &ioc->fc_rescan_work); 1425 } 1426 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1427 } 1428 return 1; 1429 } 1430 1431 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1432 /** 1433 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer. 1434 * 1435 * Returns 0 for success, non-zero for failure. 1436 */ 1437 static int __init 1438 mptfc_init(void) 1439 { 1440 int error; 1441 1442 show_mptmod_ver(my_NAME, my_VERSION); 1443 1444 /* sanity check module parameters */ 1445 if (mptfc_dev_loss_tmo <= 0) 1446 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; 1447 1448 mptfc_transport_template = 1449 fc_attach_transport(&mptfc_transport_functions); 1450 1451 if (!mptfc_transport_template) 1452 return -ENODEV; 1453 1454 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER); 1455 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER); 1456 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER); 1457 1458 mpt_event_register(mptfcDoneCtx, mptfc_event_process); 1459 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset); 1460 1461 error = pci_register_driver(&mptfc_driver); 1462 if (error) 1463 fc_release_transport(mptfc_transport_template); 1464 1465 return error; 1466 } 1467 1468 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1469 /** 1470 * mptfc_remove - Remove fc infrastructure for devices 1471 * @pdev: Pointer to pci_dev structure 1472 * 1473 */ 1474 static void __devexit 1475 mptfc_remove(struct pci_dev *pdev) 1476 { 1477 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1478 struct mptfc_rport_info *p, *n; 1479 struct workqueue_struct *work_q; 1480 unsigned long flags; 1481 int ii; 1482 1483 /* destroy workqueue */ 1484 if ((work_q=ioc->fc_rescan_work_q)) { 1485 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1486 ioc->fc_rescan_work_q = NULL; 1487 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1488 destroy_workqueue(work_q); 1489 } 1490 1491 fc_remove_host(ioc->sh); 1492 1493 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) { 1494 list_del(&p->list); 1495 kfree(p); 1496 } 1497 1498 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 1499 if (ioc->fc_data.fc_port_page1[ii].data) { 1500 pci_free_consistent(ioc->pcidev, 1501 ioc->fc_data.fc_port_page1[ii].pg_sz, 1502 (u8 *) ioc->fc_data.fc_port_page1[ii].data, 1503 ioc->fc_data.fc_port_page1[ii].dma); 1504 ioc->fc_data.fc_port_page1[ii].data = NULL; 1505 } 1506 } 1507 1508 mptscsih_remove(pdev); 1509 } 1510 1511 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1512 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1513 /** 1514 * mptfc_exit - Unregisters MPT adapter(s) 1515 * 1516 */ 1517 static void __exit 1518 mptfc_exit(void) 1519 { 1520 pci_unregister_driver(&mptfc_driver); 1521 fc_release_transport(mptfc_transport_template); 1522 1523 mpt_reset_deregister(mptfcDoneCtx); 1524 mpt_event_deregister(mptfcDoneCtx); 1525 1526 mpt_deregister(mptfcInternalCtx); 1527 mpt_deregister(mptfcTaskCtx); 1528 mpt_deregister(mptfcDoneCtx); 1529 } 1530 1531 module_init(mptfc_init); 1532 module_exit(mptfc_exit); 1533