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 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); 107 108 static struct scsi_host_template mptfc_driver_template = { 109 .module = THIS_MODULE, 110 .proc_name = "mptfc", 111 .show_info = mptscsih_show_info, 112 .name = "MPT FC Host", 113 .info = mptscsih_info, 114 .queuecommand = mptfc_qcmd, 115 .target_alloc = mptfc_target_alloc, 116 .slave_alloc = mptfc_slave_alloc, 117 .slave_configure = mptscsih_slave_configure, 118 .target_destroy = mptfc_target_destroy, 119 .slave_destroy = mptscsih_slave_destroy, 120 .change_queue_depth = mptscsih_change_queue_depth, 121 .eh_timed_out = fc_eh_timed_out, 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 = mptscsih_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 .shost_attrs = mptscsih_host_attrs, 133 }; 134 135 /**************************************************************************** 136 * Supported hardware 137 */ 138 139 static struct pci_device_id mptfc_pci_table[] = { 140 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909, 141 PCI_ANY_ID, PCI_ANY_ID }, 142 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919, 143 PCI_ANY_ID, PCI_ANY_ID }, 144 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929, 145 PCI_ANY_ID, PCI_ANY_ID }, 146 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X, 147 PCI_ANY_ID, PCI_ANY_ID }, 148 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X, 149 PCI_ANY_ID, PCI_ANY_ID }, 150 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X, 151 PCI_ANY_ID, PCI_ANY_ID }, 152 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X, 153 PCI_ANY_ID, PCI_ANY_ID }, 154 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E, 155 PCI_ANY_ID, PCI_ANY_ID }, 156 { PCI_VENDOR_ID_BROCADE, MPI_MANUFACTPAGE_DEVICEID_FC949E, 157 PCI_ANY_ID, PCI_ANY_ID }, 158 {0} /* Terminating entry */ 159 }; 160 MODULE_DEVICE_TABLE(pci, mptfc_pci_table); 161 162 static struct scsi_transport_template *mptfc_transport_template = NULL; 163 164 static struct fc_function_template mptfc_transport_functions = { 165 .dd_fcrport_size = 8, 166 .show_host_node_name = 1, 167 .show_host_port_name = 1, 168 .show_host_supported_classes = 1, 169 .show_host_port_id = 1, 170 .show_rport_supported_classes = 1, 171 .show_starget_node_name = 1, 172 .show_starget_port_name = 1, 173 .show_starget_port_id = 1, 174 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo, 175 .show_rport_dev_loss_tmo = 1, 176 .show_host_supported_speeds = 1, 177 .show_host_maxframe_size = 1, 178 .show_host_speed = 1, 179 .show_host_fabric_name = 1, 180 .show_host_port_type = 1, 181 .show_host_port_state = 1, 182 .show_host_symbolic_name = 1, 183 }; 184 185 static int 186 mptfc_block_error_handler(struct scsi_cmnd *SCpnt, 187 int (*func)(struct scsi_cmnd *SCpnt), 188 const char *caller) 189 { 190 MPT_SCSI_HOST *hd; 191 struct scsi_device *sdev = SCpnt->device; 192 struct Scsi_Host *shost = sdev->host; 193 struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); 194 unsigned long flags; 195 int ready; 196 MPT_ADAPTER *ioc; 197 int loops = 40; /* seconds */ 198 199 hd = shost_priv(SCpnt->device->host); 200 ioc = hd->ioc; 201 spin_lock_irqsave(shost->host_lock, flags); 202 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY 203 || (loops > 0 && ioc->active == 0)) { 204 spin_unlock_irqrestore(shost->host_lock, flags); 205 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 206 "mptfc_block_error_handler.%d: %d:%llu, port status is " 207 "%x, active flag %d, deferring %s recovery.\n", 208 ioc->name, ioc->sh->host_no, 209 SCpnt->device->id, SCpnt->device->lun, 210 ready, ioc->active, caller)); 211 msleep(1000); 212 spin_lock_irqsave(shost->host_lock, flags); 213 loops --; 214 } 215 spin_unlock_irqrestore(shost->host_lock, flags); 216 217 if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata 218 || ioc->active == 0) { 219 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 220 "%s.%d: %d:%llu, failing recovery, " 221 "port state %x, active %d, vdevice %p.\n", caller, 222 ioc->name, ioc->sh->host_no, 223 SCpnt->device->id, SCpnt->device->lun, ready, 224 ioc->active, SCpnt->device->hostdata)); 225 return FAILED; 226 } 227 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 228 "%s.%d: %d:%llu, executing recovery.\n", caller, 229 ioc->name, ioc->sh->host_no, 230 SCpnt->device->id, SCpnt->device->lun)); 231 return (*func)(SCpnt); 232 } 233 234 static int 235 mptfc_abort(struct scsi_cmnd *SCpnt) 236 { 237 return 238 mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__); 239 } 240 241 static int 242 mptfc_dev_reset(struct scsi_cmnd *SCpnt) 243 { 244 return 245 mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__); 246 } 247 248 static int 249 mptfc_bus_reset(struct scsi_cmnd *SCpnt) 250 { 251 return 252 mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__); 253 } 254 255 static void 256 mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 257 { 258 if (timeout > 0) 259 rport->dev_loss_tmo = timeout; 260 else 261 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 262 } 263 264 static int 265 mptfc_FcDevPage0_cmp_func(const void *a, const void *b) 266 { 267 FCDevicePage0_t **aa = (FCDevicePage0_t **)a; 268 FCDevicePage0_t **bb = (FCDevicePage0_t **)b; 269 270 if ((*aa)->CurrentBus == (*bb)->CurrentBus) { 271 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID) 272 return 0; 273 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID) 274 return -1; 275 return 1; 276 } 277 if ((*aa)->CurrentBus < (*bb)->CurrentBus) 278 return -1; 279 return 1; 280 } 281 282 static int 283 mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port, 284 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg)) 285 { 286 ConfigPageHeader_t hdr; 287 CONFIGPARMS cfg; 288 FCDevicePage0_t *ppage0_alloc, *fc; 289 dma_addr_t page0_dma; 290 int data_sz; 291 int ii; 292 293 FCDevicePage0_t *p0_array=NULL, *p_p0; 294 FCDevicePage0_t **pp0_array=NULL, **p_pp0; 295 296 int rc = -ENOMEM; 297 U32 port_id = 0xffffff; 298 int num_targ = 0; 299 int max_bus = ioc->facts.MaxBuses; 300 int max_targ; 301 302 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices; 303 304 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ; 305 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL); 306 if (!p0_array) 307 goto out; 308 309 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ; 310 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL); 311 if (!pp0_array) 312 goto out; 313 314 do { 315 /* Get FC Device Page 0 header */ 316 hdr.PageVersion = 0; 317 hdr.PageLength = 0; 318 hdr.PageNumber = 0; 319 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE; 320 cfg.cfghdr.hdr = &hdr; 321 cfg.physAddr = -1; 322 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 323 cfg.dir = 0; 324 cfg.pageAddr = port_id; 325 cfg.timeout = 0; 326 327 if ((rc = mpt_config(ioc, &cfg)) != 0) 328 break; 329 330 if (hdr.PageLength <= 0) 331 break; 332 333 data_sz = hdr.PageLength * 4; 334 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, 335 &page0_dma); 336 rc = -ENOMEM; 337 if (!ppage0_alloc) 338 break; 339 340 cfg.physAddr = page0_dma; 341 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 342 343 if ((rc = mpt_config(ioc, &cfg)) == 0) { 344 ppage0_alloc->PortIdentifier = 345 le32_to_cpu(ppage0_alloc->PortIdentifier); 346 347 ppage0_alloc->WWNN.Low = 348 le32_to_cpu(ppage0_alloc->WWNN.Low); 349 350 ppage0_alloc->WWNN.High = 351 le32_to_cpu(ppage0_alloc->WWNN.High); 352 353 ppage0_alloc->WWPN.Low = 354 le32_to_cpu(ppage0_alloc->WWPN.Low); 355 356 ppage0_alloc->WWPN.High = 357 le32_to_cpu(ppage0_alloc->WWPN.High); 358 359 ppage0_alloc->BBCredit = 360 le16_to_cpu(ppage0_alloc->BBCredit); 361 362 ppage0_alloc->MaxRxFrameSize = 363 le16_to_cpu(ppage0_alloc->MaxRxFrameSize); 364 365 port_id = ppage0_alloc->PortIdentifier; 366 num_targ++; 367 *p_p0 = *ppage0_alloc; /* save data */ 368 *p_pp0++ = p_p0++; /* save addr */ 369 } 370 pci_free_consistent(ioc->pcidev, data_sz, 371 (u8 *) ppage0_alloc, page0_dma); 372 if (rc != 0) 373 break; 374 375 } while (port_id <= 0xff0000); 376 377 if (num_targ) { 378 /* sort array */ 379 if (num_targ > 1) 380 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *), 381 mptfc_FcDevPage0_cmp_func, NULL); 382 /* call caller's func for each targ */ 383 for (ii = 0; ii < num_targ; ii++) { 384 fc = *(pp0_array+ii); 385 func(ioc, ioc_port, fc); 386 } 387 } 388 389 out: 390 kfree(pp0_array); 391 kfree(p0_array); 392 return rc; 393 } 394 395 static int 396 mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid) 397 { 398 /* not currently usable */ 399 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID | 400 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID)) 401 return -1; 402 403 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID)) 404 return -1; 405 406 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET)) 407 return -1; 408 409 /* 410 * board data structure already normalized to platform endianness 411 * shifted to avoid unaligned access on 64 bit architecture 412 */ 413 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low; 414 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low; 415 rid->port_id = pg0->PortIdentifier; 416 rid->roles = FC_RPORT_ROLE_UNKNOWN; 417 418 return 0; 419 } 420 421 static void 422 mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0) 423 { 424 struct fc_rport_identifiers rport_ids; 425 struct fc_rport *rport; 426 struct mptfc_rport_info *ri; 427 int new_ri = 1; 428 u64 pn, nn; 429 VirtTarget *vtarget; 430 u32 roles = FC_RPORT_ROLE_UNKNOWN; 431 432 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0) 433 return; 434 435 roles |= FC_RPORT_ROLE_FCP_TARGET; 436 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR) 437 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 438 439 /* scan list looking for a match */ 440 list_for_each_entry(ri, &ioc->fc_rports, list) { 441 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 442 if (pn == rport_ids.port_name) { /* match */ 443 list_move_tail(&ri->list, &ioc->fc_rports); 444 new_ri = 0; 445 break; 446 } 447 } 448 if (new_ri) { /* allocate one */ 449 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL); 450 if (!ri) 451 return; 452 list_add_tail(&ri->list, &ioc->fc_rports); 453 } 454 455 ri->pg0 = *pg0; /* add/update pg0 data */ 456 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING; 457 458 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */ 459 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) { 460 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED; 461 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids); 462 if (rport) { 463 ri->rport = rport; 464 if (new_ri) /* may have been reset by user */ 465 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 466 /* 467 * if already mapped, remap here. If not mapped, 468 * target_alloc will allocate vtarget and map, 469 * slave_alloc will fill in vdevice from vtarget. 470 */ 471 if (ri->starget) { 472 vtarget = ri->starget->hostdata; 473 if (vtarget) { 474 vtarget->id = pg0->CurrentTargetID; 475 vtarget->channel = pg0->CurrentBus; 476 vtarget->deleted = 0; 477 } 478 } 479 *((struct mptfc_rport_info **)rport->dd_data) = ri; 480 /* scan will be scheduled once rport becomes a target */ 481 fc_remote_port_rolechg(rport,roles); 482 483 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 484 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 485 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 486 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, " 487 "rport tid %d, tmo %d\n", 488 ioc->name, 489 ioc->sh->host_no, 490 pg0->PortIdentifier, 491 (unsigned long long)nn, 492 (unsigned long long)pn, 493 pg0->CurrentTargetID, 494 ri->rport->scsi_target_id, 495 ri->rport->dev_loss_tmo)); 496 } else { 497 list_del(&ri->list); 498 kfree(ri); 499 ri = NULL; 500 } 501 } 502 } 503 504 /* 505 * OS entry point to allow for host driver to free allocated memory 506 * Called if no device present or device being unloaded 507 */ 508 static void 509 mptfc_target_destroy(struct scsi_target *starget) 510 { 511 struct fc_rport *rport; 512 struct mptfc_rport_info *ri; 513 514 rport = starget_to_rport(starget); 515 if (rport) { 516 ri = *((struct mptfc_rport_info **)rport->dd_data); 517 if (ri) /* better be! */ 518 ri->starget = NULL; 519 } 520 kfree(starget->hostdata); 521 starget->hostdata = NULL; 522 } 523 524 /* 525 * OS entry point to allow host driver to alloc memory 526 * for each scsi target. Called once per device the bus scan. 527 * Return non-zero if allocation fails. 528 */ 529 static int 530 mptfc_target_alloc(struct scsi_target *starget) 531 { 532 VirtTarget *vtarget; 533 struct fc_rport *rport; 534 struct mptfc_rport_info *ri; 535 int rc; 536 537 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); 538 if (!vtarget) 539 return -ENOMEM; 540 starget->hostdata = vtarget; 541 542 rc = -ENODEV; 543 rport = starget_to_rport(starget); 544 if (rport) { 545 ri = *((struct mptfc_rport_info **)rport->dd_data); 546 if (ri) { /* better be! */ 547 vtarget->id = ri->pg0.CurrentTargetID; 548 vtarget->channel = ri->pg0.CurrentBus; 549 ri->starget = starget; 550 rc = 0; 551 } 552 } 553 if (rc != 0) { 554 kfree(vtarget); 555 starget->hostdata = NULL; 556 } 557 558 return rc; 559 } 560 /* 561 * mptfc_dump_lun_info 562 * @ioc 563 * @rport 564 * @sdev 565 * 566 */ 567 static void 568 mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev, 569 VirtTarget *vtarget) 570 { 571 u64 nn, pn; 572 struct mptfc_rport_info *ri; 573 574 ri = *((struct mptfc_rport_info **)rport->dd_data); 575 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 576 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 577 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 578 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, " 579 "CurrentTargetID %d, %x %llx %llx\n", 580 ioc->name, 581 sdev->host->host_no, 582 vtarget->num_luns, 583 sdev->id, ri->pg0.CurrentTargetID, 584 ri->pg0.PortIdentifier, 585 (unsigned long long)pn, 586 (unsigned long long)nn)); 587 } 588 589 590 /* 591 * OS entry point to allow host driver to alloc memory 592 * for each scsi device. Called once per device the bus scan. 593 * Return non-zero if allocation fails. 594 * Init memory once per LUN. 595 */ 596 static int 597 mptfc_slave_alloc(struct scsi_device *sdev) 598 { 599 MPT_SCSI_HOST *hd; 600 VirtTarget *vtarget; 601 VirtDevice *vdevice; 602 struct scsi_target *starget; 603 struct fc_rport *rport; 604 MPT_ADAPTER *ioc; 605 606 starget = scsi_target(sdev); 607 rport = starget_to_rport(starget); 608 609 if (!rport || fc_remote_port_chkready(rport)) 610 return -ENXIO; 611 612 hd = shost_priv(sdev->host); 613 ioc = hd->ioc; 614 615 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL); 616 if (!vdevice) { 617 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", 618 ioc->name, sizeof(VirtDevice)); 619 return -ENOMEM; 620 } 621 622 623 sdev->hostdata = vdevice; 624 vtarget = starget->hostdata; 625 626 if (vtarget->num_luns == 0) { 627 vtarget->ioc_id = ioc->id; 628 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES; 629 } 630 631 vdevice->vtarget = vtarget; 632 vdevice->lun = sdev->lun; 633 634 vtarget->num_luns++; 635 636 637 mptfc_dump_lun_info(ioc, rport, sdev, vtarget); 638 639 return 0; 640 } 641 642 static int 643 mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt) 644 { 645 struct mptfc_rport_info *ri; 646 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); 647 int err; 648 VirtDevice *vdevice = SCpnt->device->hostdata; 649 650 if (!vdevice || !vdevice->vtarget) { 651 SCpnt->result = DID_NO_CONNECT << 16; 652 SCpnt->scsi_done(SCpnt); 653 return 0; 654 } 655 656 err = fc_remote_port_chkready(rport); 657 if (unlikely(err)) { 658 SCpnt->result = err; 659 SCpnt->scsi_done(SCpnt); 660 return 0; 661 } 662 663 /* dd_data is null until finished adding target */ 664 ri = *((struct mptfc_rport_info **)rport->dd_data); 665 if (unlikely(!ri)) { 666 SCpnt->result = DID_IMM_RETRY << 16; 667 SCpnt->scsi_done(SCpnt); 668 return 0; 669 } 670 671 return mptscsih_qcmd(SCpnt); 672 } 673 674 /* 675 * mptfc_display_port_link_speed - displaying link speed 676 * @ioc: Pointer to MPT_ADAPTER structure 677 * @portnum: IOC Port number 678 * @pp0dest: port page0 data payload 679 * 680 */ 681 static void 682 mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest) 683 { 684 u8 old_speed, new_speed, state; 685 char *old, *new; 686 687 if (portnum >= 2) 688 return; 689 690 old_speed = ioc->fc_link_speed[portnum]; 691 new_speed = pp0dest->CurrentSpeed; 692 state = pp0dest->PortState; 693 694 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE && 695 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UNKNOWN) { 696 697 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : 698 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : 699 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : 700 "Unknown"; 701 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : 702 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : 703 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : 704 "Unknown"; 705 if (old_speed == 0) 706 printk(MYIOC_s_NOTE_FMT 707 "FC Link Established, Speed = %s\n", 708 ioc->name, new); 709 else if (old_speed != new_speed) 710 printk(MYIOC_s_WARN_FMT 711 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n", 712 ioc->name, old, new); 713 714 ioc->fc_link_speed[portnum] = new_speed; 715 } 716 } 717 718 /* 719 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0. 720 * @ioc: Pointer to MPT_ADAPTER structure 721 * @portnum: IOC Port number 722 * 723 * Return: 0 for success 724 * -ENOMEM if no memory available 725 * -EPERM if not allowed due to ISR context 726 * -EAGAIN if no msg frames currently available 727 * -EFAULT for non-successful reply or no reply (timeout) 728 * -EINVAL portnum arg out of range (hardwired to two elements) 729 */ 730 static int 731 mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) 732 { 733 ConfigPageHeader_t hdr; 734 CONFIGPARMS cfg; 735 FCPortPage0_t *ppage0_alloc; 736 FCPortPage0_t *pp0dest; 737 dma_addr_t page0_dma; 738 int data_sz; 739 int copy_sz; 740 int rc; 741 int count = 400; 742 743 if (portnum > 1) 744 return -EINVAL; 745 746 /* Get FCPort Page 0 header */ 747 hdr.PageVersion = 0; 748 hdr.PageLength = 0; 749 hdr.PageNumber = 0; 750 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 751 cfg.cfghdr.hdr = &hdr; 752 cfg.physAddr = -1; 753 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 754 cfg.dir = 0; 755 cfg.pageAddr = portnum; 756 cfg.timeout = 0; 757 758 if ((rc = mpt_config(ioc, &cfg)) != 0) 759 return rc; 760 761 if (hdr.PageLength == 0) 762 return 0; 763 764 data_sz = hdr.PageLength * 4; 765 rc = -ENOMEM; 766 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma); 767 if (ppage0_alloc) { 768 769 try_again: 770 memset((u8 *)ppage0_alloc, 0, data_sz); 771 cfg.physAddr = page0_dma; 772 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 773 774 if ((rc = mpt_config(ioc, &cfg)) == 0) { 775 /* save the data */ 776 pp0dest = &ioc->fc_port_page0[portnum]; 777 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz); 778 memcpy(pp0dest, ppage0_alloc, copy_sz); 779 780 /* 781 * Normalize endianness of structure data, 782 * by byte-swapping all > 1 byte fields! 783 */ 784 pp0dest->Flags = le32_to_cpu(pp0dest->Flags); 785 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier); 786 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low); 787 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High); 788 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low); 789 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High); 790 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass); 791 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds); 792 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed); 793 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize); 794 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low); 795 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High); 796 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low); 797 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High); 798 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount); 799 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators); 800 801 /* 802 * if still doing discovery, 803 * hang loose a while until finished 804 */ 805 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) || 806 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE && 807 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) 808 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) { 809 if (count-- > 0) { 810 msleep(100); 811 goto try_again; 812 } 813 printk(MYIOC_s_INFO_FMT "Firmware discovery not" 814 " complete.\n", 815 ioc->name); 816 } 817 mptfc_display_port_link_speed(ioc, portnum, pp0dest); 818 } 819 820 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma); 821 } 822 823 return rc; 824 } 825 826 static int 827 mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum) 828 { 829 ConfigPageHeader_t hdr; 830 CONFIGPARMS cfg; 831 int rc; 832 833 if (portnum > 1) 834 return -EINVAL; 835 836 if (!(ioc->fc_data.fc_port_page1[portnum].data)) 837 return -EINVAL; 838 839 /* get fcport page 1 header */ 840 hdr.PageVersion = 0; 841 hdr.PageLength = 0; 842 hdr.PageNumber = 1; 843 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 844 cfg.cfghdr.hdr = &hdr; 845 cfg.physAddr = -1; 846 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 847 cfg.dir = 0; 848 cfg.pageAddr = portnum; 849 cfg.timeout = 0; 850 851 if ((rc = mpt_config(ioc, &cfg)) != 0) 852 return rc; 853 854 if (hdr.PageLength == 0) 855 return -ENODEV; 856 857 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz) 858 return -EINVAL; 859 860 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma; 861 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 862 cfg.dir = 1; 863 864 rc = mpt_config(ioc, &cfg); 865 866 return rc; 867 } 868 869 static int 870 mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum) 871 { 872 ConfigPageHeader_t hdr; 873 CONFIGPARMS cfg; 874 FCPortPage1_t *page1_alloc; 875 dma_addr_t page1_dma; 876 int data_sz; 877 int rc; 878 879 if (portnum > 1) 880 return -EINVAL; 881 882 /* get fcport page 1 header */ 883 hdr.PageVersion = 0; 884 hdr.PageLength = 0; 885 hdr.PageNumber = 1; 886 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 887 cfg.cfghdr.hdr = &hdr; 888 cfg.physAddr = -1; 889 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 890 cfg.dir = 0; 891 cfg.pageAddr = portnum; 892 cfg.timeout = 0; 893 894 if ((rc = mpt_config(ioc, &cfg)) != 0) 895 return rc; 896 897 if (hdr.PageLength == 0) 898 return -ENODEV; 899 900 start_over: 901 902 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) { 903 data_sz = hdr.PageLength * 4; 904 if (data_sz < sizeof(FCPortPage1_t)) 905 data_sz = sizeof(FCPortPage1_t); 906 907 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev, 908 data_sz, 909 &page1_dma); 910 if (!page1_alloc) 911 return -ENOMEM; 912 } 913 else { 914 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data; 915 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma; 916 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz; 917 if (hdr.PageLength * 4 > data_sz) { 918 ioc->fc_data.fc_port_page1[portnum].data = NULL; 919 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 920 page1_alloc, page1_dma); 921 goto start_over; 922 } 923 } 924 925 memset(page1_alloc,0,data_sz); 926 927 cfg.physAddr = page1_dma; 928 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 929 930 if ((rc = mpt_config(ioc, &cfg)) == 0) { 931 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc; 932 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz; 933 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma; 934 } 935 else { 936 ioc->fc_data.fc_port_page1[portnum].data = NULL; 937 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 938 page1_alloc, page1_dma); 939 } 940 941 return rc; 942 } 943 944 static void 945 mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc) 946 { 947 int ii; 948 FCPortPage1_t *pp1; 949 950 #define MPTFC_FW_DEVICE_TIMEOUT (1) 951 #define MPTFC_FW_IO_PEND_TIMEOUT (1) 952 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY) 953 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS) 954 955 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 956 if (mptfc_GetFcPortPage1(ioc, ii) != 0) 957 continue; 958 pp1 = ioc->fc_data.fc_port_page1[ii].data; 959 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT) 960 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT) 961 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS) 962 && ((pp1->Flags & OFF_FLAGS) == 0)) 963 continue; 964 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT; 965 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT; 966 pp1->Flags &= ~OFF_FLAGS; 967 pp1->Flags |= ON_FLAGS; 968 mptfc_WriteFcPortPage1(ioc, ii); 969 } 970 } 971 972 973 static void 974 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum) 975 { 976 unsigned class = 0; 977 unsigned cos = 0; 978 unsigned speed; 979 unsigned port_type; 980 unsigned port_state; 981 FCPortPage0_t *pp0; 982 struct Scsi_Host *sh; 983 char *sn; 984 985 /* don't know what to do as only one scsi (fc) host was allocated */ 986 if (portnum != 0) 987 return; 988 989 pp0 = &ioc->fc_port_page0[portnum]; 990 sh = ioc->sh; 991 992 sn = fc_host_symbolic_name(sh); 993 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh", 994 ioc->prod_name, 995 MPT_FW_REV_MAGIC_ID_STRING, 996 ioc->facts.FWVersion.Word); 997 998 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN; 999 1000 fc_host_maxframe_size(sh) = pp0->MaxFrameSize; 1001 1002 fc_host_node_name(sh) = 1003 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1004 1005 fc_host_port_name(sh) = 1006 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low; 1007 1008 fc_host_port_id(sh) = pp0->PortIdentifier; 1009 1010 class = pp0->SupportedServiceClass; 1011 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1) 1012 cos |= FC_COS_CLASS1; 1013 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2) 1014 cos |= FC_COS_CLASS2; 1015 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3) 1016 cos |= FC_COS_CLASS3; 1017 fc_host_supported_classes(sh) = cos; 1018 1019 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT) 1020 speed = FC_PORTSPEED_1GBIT; 1021 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT) 1022 speed = FC_PORTSPEED_2GBIT; 1023 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT) 1024 speed = FC_PORTSPEED_4GBIT; 1025 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT) 1026 speed = FC_PORTSPEED_10GBIT; 1027 else 1028 speed = FC_PORTSPEED_UNKNOWN; 1029 fc_host_speed(sh) = speed; 1030 1031 speed = 0; 1032 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED) 1033 speed |= FC_PORTSPEED_1GBIT; 1034 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED) 1035 speed |= FC_PORTSPEED_2GBIT; 1036 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED) 1037 speed |= FC_PORTSPEED_4GBIT; 1038 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED) 1039 speed |= FC_PORTSPEED_10GBIT; 1040 fc_host_supported_speeds(sh) = speed; 1041 1042 port_state = FC_PORTSTATE_UNKNOWN; 1043 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE) 1044 port_state = FC_PORTSTATE_ONLINE; 1045 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE) 1046 port_state = FC_PORTSTATE_LINKDOWN; 1047 fc_host_port_state(sh) = port_state; 1048 1049 port_type = FC_PORTTYPE_UNKNOWN; 1050 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT) 1051 port_type = FC_PORTTYPE_PTP; 1052 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP) 1053 port_type = FC_PORTTYPE_LPORT; 1054 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP) 1055 port_type = FC_PORTTYPE_NLPORT; 1056 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT) 1057 port_type = FC_PORTTYPE_NPORT; 1058 fc_host_port_type(sh) = port_type; 1059 1060 fc_host_fabric_name(sh) = 1061 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ? 1062 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low : 1063 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1064 1065 } 1066 1067 static void 1068 mptfc_link_status_change(struct work_struct *work) 1069 { 1070 MPT_ADAPTER *ioc = 1071 container_of(work, MPT_ADAPTER, fc_rescan_work); 1072 int ii; 1073 1074 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) 1075 (void) mptfc_GetFcPortPage0(ioc, ii); 1076 1077 } 1078 1079 static void 1080 mptfc_setup_reset(struct work_struct *work) 1081 { 1082 MPT_ADAPTER *ioc = 1083 container_of(work, MPT_ADAPTER, fc_setup_reset_work); 1084 u64 pn; 1085 struct mptfc_rport_info *ri; 1086 struct scsi_target *starget; 1087 VirtTarget *vtarget; 1088 1089 /* reset about to happen, delete (block) all rports */ 1090 list_for_each_entry(ri, &ioc->fc_rports, list) { 1091 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1092 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED; 1093 fc_remote_port_delete(ri->rport); /* won't sleep */ 1094 ri->rport = NULL; 1095 starget = ri->starget; 1096 if (starget) { 1097 vtarget = starget->hostdata; 1098 if (vtarget) 1099 vtarget->deleted = 1; 1100 } 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 struct scsi_target *starget; 1122 VirtTarget *vtarget; 1123 1124 /* start by tagging all ports as missing */ 1125 list_for_each_entry(ri, &ioc->fc_rports, list) { 1126 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1127 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; 1128 } 1129 } 1130 1131 /* 1132 * now rescan devices known to adapter, 1133 * will reregister existing rports 1134 */ 1135 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1136 (void) mptfc_GetFcPortPage0(ioc, ii); 1137 mptfc_init_host_attr(ioc, ii); /* refresh */ 1138 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev); 1139 } 1140 1141 /* delete devices still missing */ 1142 list_for_each_entry(ri, &ioc->fc_rports, list) { 1143 /* if newly missing, delete it */ 1144 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { 1145 1146 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| 1147 MPT_RPORT_INFO_FLAGS_MISSING); 1148 fc_remote_port_delete(ri->rport); /* won't sleep */ 1149 ri->rport = NULL; 1150 starget = ri->starget; 1151 if (starget) { 1152 vtarget = starget->hostdata; 1153 if (vtarget) 1154 vtarget->deleted = 1; 1155 } 1156 1157 pn = (u64)ri->pg0.WWPN.High << 32 | 1158 (u64)ri->pg0.WWPN.Low; 1159 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1160 "mptfc_rescan.%d: %llx deleted\n", 1161 ioc->name, 1162 ioc->sh->host_no, 1163 (unsigned long long)pn)); 1164 } 1165 } 1166 } 1167 1168 static int 1169 mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1170 { 1171 struct Scsi_Host *sh; 1172 MPT_SCSI_HOST *hd; 1173 MPT_ADAPTER *ioc; 1174 unsigned long flags; 1175 int ii; 1176 int numSGE = 0; 1177 int scale; 1178 int ioc_cap; 1179 int error=0; 1180 int r; 1181 1182 if ((r = mpt_attach(pdev,id)) != 0) 1183 return r; 1184 1185 ioc = pci_get_drvdata(pdev); 1186 ioc->DoneCtx = mptfcDoneCtx; 1187 ioc->TaskCtx = mptfcTaskCtx; 1188 ioc->InternalCtx = mptfcInternalCtx; 1189 1190 /* Added sanity check on readiness of the MPT adapter. 1191 */ 1192 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 1193 printk(MYIOC_s_WARN_FMT 1194 "Skipping because it's not operational!\n", 1195 ioc->name); 1196 error = -ENODEV; 1197 goto out_mptfc_probe; 1198 } 1199 1200 if (!ioc->active) { 1201 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 1202 ioc->name); 1203 error = -ENODEV; 1204 goto out_mptfc_probe; 1205 } 1206 1207 /* Sanity check - ensure at least 1 port is INITIATOR capable 1208 */ 1209 ioc_cap = 0; 1210 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1211 if (ioc->pfacts[ii].ProtocolFlags & 1212 MPI_PORTFACTS_PROTOCOL_INITIATOR) 1213 ioc_cap ++; 1214 } 1215 1216 if (!ioc_cap) { 1217 printk(MYIOC_s_WARN_FMT 1218 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", 1219 ioc->name, ioc); 1220 return 0; 1221 } 1222 1223 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST)); 1224 1225 if (!sh) { 1226 printk(MYIOC_s_WARN_FMT 1227 "Unable to register controller with SCSI subsystem\n", 1228 ioc->name); 1229 error = -1; 1230 goto out_mptfc_probe; 1231 } 1232 1233 spin_lock_init(&ioc->fc_rescan_work_lock); 1234 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices); 1235 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset); 1236 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change); 1237 1238 spin_lock_irqsave(&ioc->FreeQlock, flags); 1239 1240 /* Attach the SCSI Host to the IOC structure 1241 */ 1242 ioc->sh = sh; 1243 1244 sh->io_port = 0; 1245 sh->n_io_port = 0; 1246 sh->irq = 0; 1247 1248 /* set 16 byte cdb's */ 1249 sh->max_cmd_len = 16; 1250 1251 sh->max_id = ioc->pfacts->MaxDevices; 1252 sh->max_lun = max_lun; 1253 1254 /* Required entry. 1255 */ 1256 sh->unique_id = ioc->id; 1257 1258 /* Verify that we won't exceed the maximum 1259 * number of chain buffers 1260 * We can optimize: ZZ = req_sz/sizeof(SGE) 1261 * For 32bit SGE's: 1262 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 1263 * + (req_sz - 64)/sizeof(SGE) 1264 * A slightly different algorithm is required for 1265 * 64bit SGEs. 1266 */ 1267 scale = ioc->req_sz/ioc->SGE_size; 1268 if (ioc->sg_addr_size == sizeof(u64)) { 1269 numSGE = (scale - 1) * 1270 (ioc->facts.MaxChainDepth-1) + scale + 1271 (ioc->req_sz - 60) / ioc->SGE_size; 1272 } else { 1273 numSGE = 1 + (scale - 1) * 1274 (ioc->facts.MaxChainDepth-1) + scale + 1275 (ioc->req_sz - 64) / ioc->SGE_size; 1276 } 1277 1278 if (numSGE < sh->sg_tablesize) { 1279 /* Reset this value */ 1280 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1281 "Resetting sg_tablesize to %d from %d\n", 1282 ioc->name, numSGE, sh->sg_tablesize)); 1283 sh->sg_tablesize = numSGE; 1284 } 1285 1286 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1287 1288 hd = shost_priv(sh); 1289 hd->ioc = ioc; 1290 1291 /* SCSI needs scsi_cmnd lookup table! 1292 * (with size equal to req_depth*PtrSz!) 1293 */ 1294 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_KERNEL); 1295 if (!ioc->ScsiLookup) { 1296 error = -ENOMEM; 1297 goto out_mptfc_probe; 1298 } 1299 spin_lock_init(&ioc->scsi_lookup_lock); 1300 1301 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n", 1302 ioc->name, ioc->ScsiLookup)); 1303 1304 hd->last_queue_full = 0; 1305 1306 sh->transportt = mptfc_transport_template; 1307 error = scsi_add_host (sh, &ioc->pcidev->dev); 1308 if(error) { 1309 dprintk(ioc, printk(MYIOC_s_ERR_FMT 1310 "scsi_add_host failed\n", ioc->name)); 1311 goto out_mptfc_probe; 1312 } 1313 1314 /* initialize workqueue */ 1315 1316 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name), 1317 "mptfc_wq_%d", sh->host_no); 1318 ioc->fc_rescan_work_q = 1319 alloc_ordered_workqueue(ioc->fc_rescan_work_q_name, 1320 WQ_MEM_RECLAIM); 1321 if (!ioc->fc_rescan_work_q) { 1322 error = -ENOMEM; 1323 goto out_mptfc_host; 1324 } 1325 1326 /* 1327 * Pre-fetch FC port WWN and stuff... 1328 * (FCPortPage0_t stuff) 1329 */ 1330 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1331 (void) mptfc_GetFcPortPage0(ioc, ii); 1332 } 1333 mptfc_SetFcPortPage1_defaults(ioc); 1334 1335 /* 1336 * scan for rports - 1337 * by doing it via the workqueue, some locking is eliminated 1338 */ 1339 1340 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); 1341 flush_workqueue(ioc->fc_rescan_work_q); 1342 1343 return 0; 1344 1345 out_mptfc_host: 1346 scsi_remove_host(sh); 1347 1348 out_mptfc_probe: 1349 1350 mptscsih_remove(pdev); 1351 return error; 1352 } 1353 1354 static struct pci_driver mptfc_driver = { 1355 .name = "mptfc", 1356 .id_table = mptfc_pci_table, 1357 .probe = mptfc_probe, 1358 .remove = mptfc_remove, 1359 .shutdown = mptscsih_shutdown, 1360 #ifdef CONFIG_PM 1361 .suspend = mptscsih_suspend, 1362 .resume = mptscsih_resume, 1363 #endif 1364 }; 1365 1366 static int 1367 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 1368 { 1369 MPT_SCSI_HOST *hd; 1370 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 1371 unsigned long flags; 1372 int rc=1; 1373 1374 if (ioc->bus_type != FC) 1375 return 0; 1376 1377 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n", 1378 ioc->name, event)); 1379 1380 if (ioc->sh == NULL || 1381 ((hd = shost_priv(ioc->sh)) == NULL)) 1382 return 1; 1383 1384 switch (event) { 1385 case MPI_EVENT_RESCAN: 1386 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1387 if (ioc->fc_rescan_work_q) { 1388 queue_work(ioc->fc_rescan_work_q, 1389 &ioc->fc_rescan_work); 1390 } 1391 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1392 break; 1393 case MPI_EVENT_LINK_STATUS_CHANGE: 1394 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1395 if (ioc->fc_rescan_work_q) { 1396 queue_work(ioc->fc_rescan_work_q, 1397 &ioc->fc_lsc_work); 1398 } 1399 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1400 break; 1401 default: 1402 rc = mptscsih_event_process(ioc,pEvReply); 1403 break; 1404 } 1405 return rc; 1406 } 1407 1408 static int 1409 mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 1410 { 1411 int rc; 1412 unsigned long flags; 1413 1414 rc = mptscsih_ioc_reset(ioc,reset_phase); 1415 if ((ioc->bus_type != FC) || (!rc)) 1416 return rc; 1417 1418 1419 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1420 ": IOC %s_reset routed to FC host driver!\n",ioc->name, 1421 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( 1422 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); 1423 1424 if (reset_phase == MPT_IOC_SETUP_RESET) { 1425 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1426 if (ioc->fc_rescan_work_q) { 1427 queue_work(ioc->fc_rescan_work_q, 1428 &ioc->fc_setup_reset_work); 1429 } 1430 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1431 } 1432 1433 else if (reset_phase == MPT_IOC_PRE_RESET) { 1434 } 1435 1436 else { /* MPT_IOC_POST_RESET */ 1437 mptfc_SetFcPortPage1_defaults(ioc); 1438 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1439 if (ioc->fc_rescan_work_q) { 1440 queue_work(ioc->fc_rescan_work_q, 1441 &ioc->fc_rescan_work); 1442 } 1443 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1444 } 1445 return 1; 1446 } 1447 1448 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1449 /** 1450 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer. 1451 * 1452 * Returns 0 for success, non-zero for failure. 1453 */ 1454 static int __init 1455 mptfc_init(void) 1456 { 1457 int error; 1458 1459 show_mptmod_ver(my_NAME, my_VERSION); 1460 1461 /* sanity check module parameters */ 1462 if (mptfc_dev_loss_tmo <= 0) 1463 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; 1464 1465 mptfc_transport_template = 1466 fc_attach_transport(&mptfc_transport_functions); 1467 1468 if (!mptfc_transport_template) 1469 return -ENODEV; 1470 1471 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER, 1472 "mptscsih_scandv_complete"); 1473 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER, 1474 "mptscsih_scandv_complete"); 1475 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER, 1476 "mptscsih_scandv_complete"); 1477 1478 mpt_event_register(mptfcDoneCtx, mptfc_event_process); 1479 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset); 1480 1481 error = pci_register_driver(&mptfc_driver); 1482 if (error) 1483 fc_release_transport(mptfc_transport_template); 1484 1485 return error; 1486 } 1487 1488 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1489 /** 1490 * mptfc_remove - Remove fc infrastructure for devices 1491 * @pdev: Pointer to pci_dev structure 1492 * 1493 */ 1494 static void mptfc_remove(struct pci_dev *pdev) 1495 { 1496 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1497 struct mptfc_rport_info *p, *n; 1498 struct workqueue_struct *work_q; 1499 unsigned long flags; 1500 int ii; 1501 1502 /* destroy workqueue */ 1503 if ((work_q=ioc->fc_rescan_work_q)) { 1504 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1505 ioc->fc_rescan_work_q = NULL; 1506 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1507 destroy_workqueue(work_q); 1508 } 1509 1510 fc_remove_host(ioc->sh); 1511 1512 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) { 1513 list_del(&p->list); 1514 kfree(p); 1515 } 1516 1517 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 1518 if (ioc->fc_data.fc_port_page1[ii].data) { 1519 pci_free_consistent(ioc->pcidev, 1520 ioc->fc_data.fc_port_page1[ii].pg_sz, 1521 (u8 *) ioc->fc_data.fc_port_page1[ii].data, 1522 ioc->fc_data.fc_port_page1[ii].dma); 1523 ioc->fc_data.fc_port_page1[ii].data = NULL; 1524 } 1525 } 1526 1527 scsi_remove_host(ioc->sh); 1528 1529 mptscsih_remove(pdev); 1530 } 1531 1532 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1533 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1534 /** 1535 * mptfc_exit - Unregisters MPT adapter(s) 1536 * 1537 */ 1538 static void __exit 1539 mptfc_exit(void) 1540 { 1541 pci_unregister_driver(&mptfc_driver); 1542 fc_release_transport(mptfc_transport_template); 1543 1544 mpt_reset_deregister(mptfcDoneCtx); 1545 mpt_event_deregister(mptfcDoneCtx); 1546 1547 mpt_deregister(mptfcInternalCtx); 1548 mpt_deregister(mptfcTaskCtx); 1549 mpt_deregister(mptfcDoneCtx); 1550 } 1551 1552 module_init(mptfc_init); 1553 module_exit(mptfc_exit); 1554