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> 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 const 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_groups = mptscsih_host_attr_groups, 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 = dma_alloc_coherent(&ioc->pcidev->dev, data_sz, 335 &page0_dma, GFP_KERNEL); 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 dma_free_coherent(&ioc->pcidev->dev, data_sz, 371 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 scsi_done(SCpnt); 653 return 0; 654 } 655 656 err = fc_remote_port_chkready(rport); 657 if (unlikely(err)) { 658 SCpnt->result = err; 659 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 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 = dma_alloc_coherent(&ioc->pcidev->dev, data_sz, 767 &page0_dma, GFP_KERNEL); 768 if (ppage0_alloc) { 769 770 try_again: 771 memset((u8 *)ppage0_alloc, 0, data_sz); 772 cfg.physAddr = page0_dma; 773 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 774 775 if ((rc = mpt_config(ioc, &cfg)) == 0) { 776 /* save the data */ 777 pp0dest = &ioc->fc_port_page0[portnum]; 778 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz); 779 memcpy(pp0dest, ppage0_alloc, copy_sz); 780 781 /* 782 * Normalize endianness of structure data, 783 * by byte-swapping all > 1 byte fields! 784 */ 785 pp0dest->Flags = le32_to_cpu(pp0dest->Flags); 786 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier); 787 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low); 788 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High); 789 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low); 790 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High); 791 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass); 792 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds); 793 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed); 794 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize); 795 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low); 796 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High); 797 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low); 798 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High); 799 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount); 800 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators); 801 802 /* 803 * if still doing discovery, 804 * hang loose a while until finished 805 */ 806 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) || 807 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE && 808 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) 809 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) { 810 if (count-- > 0) { 811 msleep(100); 812 goto try_again; 813 } 814 printk(MYIOC_s_INFO_FMT "Firmware discovery not" 815 " complete.\n", 816 ioc->name); 817 } 818 mptfc_display_port_link_speed(ioc, portnum, pp0dest); 819 } 820 821 dma_free_coherent(&ioc->pcidev->dev, data_sz, ppage0_alloc, 822 page0_dma); 823 } 824 825 return rc; 826 } 827 828 static int 829 mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum) 830 { 831 ConfigPageHeader_t hdr; 832 CONFIGPARMS cfg; 833 int rc; 834 835 if (portnum > 1) 836 return -EINVAL; 837 838 if (!(ioc->fc_data.fc_port_page1[portnum].data)) 839 return -EINVAL; 840 841 /* get fcport page 1 header */ 842 hdr.PageVersion = 0; 843 hdr.PageLength = 0; 844 hdr.PageNumber = 1; 845 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 846 cfg.cfghdr.hdr = &hdr; 847 cfg.physAddr = -1; 848 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 849 cfg.dir = 0; 850 cfg.pageAddr = portnum; 851 cfg.timeout = 0; 852 853 if ((rc = mpt_config(ioc, &cfg)) != 0) 854 return rc; 855 856 if (hdr.PageLength == 0) 857 return -ENODEV; 858 859 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz) 860 return -EINVAL; 861 862 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma; 863 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 864 cfg.dir = 1; 865 866 rc = mpt_config(ioc, &cfg); 867 868 return rc; 869 } 870 871 static int 872 mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum) 873 { 874 ConfigPageHeader_t hdr; 875 CONFIGPARMS cfg; 876 FCPortPage1_t *page1_alloc; 877 dma_addr_t page1_dma; 878 int data_sz; 879 int rc; 880 881 if (portnum > 1) 882 return -EINVAL; 883 884 /* get fcport page 1 header */ 885 hdr.PageVersion = 0; 886 hdr.PageLength = 0; 887 hdr.PageNumber = 1; 888 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 889 cfg.cfghdr.hdr = &hdr; 890 cfg.physAddr = -1; 891 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 892 cfg.dir = 0; 893 cfg.pageAddr = portnum; 894 cfg.timeout = 0; 895 896 if ((rc = mpt_config(ioc, &cfg)) != 0) 897 return rc; 898 899 if (hdr.PageLength == 0) 900 return -ENODEV; 901 902 start_over: 903 904 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) { 905 data_sz = hdr.PageLength * 4; 906 if (data_sz < sizeof(FCPortPage1_t)) 907 data_sz = sizeof(FCPortPage1_t); 908 909 page1_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz, 910 &page1_dma, GFP_KERNEL); 911 if (!page1_alloc) 912 return -ENOMEM; 913 } 914 else { 915 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data; 916 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma; 917 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz; 918 if (hdr.PageLength * 4 > data_sz) { 919 ioc->fc_data.fc_port_page1[portnum].data = NULL; 920 dma_free_coherent(&ioc->pcidev->dev, data_sz, 921 page1_alloc, page1_dma); 922 goto start_over; 923 } 924 } 925 926 cfg.physAddr = page1_dma; 927 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 928 929 if ((rc = mpt_config(ioc, &cfg)) == 0) { 930 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc; 931 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz; 932 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma; 933 } 934 else { 935 ioc->fc_data.fc_port_page1[portnum].data = NULL; 936 dma_free_coherent(&ioc->pcidev->dev, data_sz, page1_alloc, 937 page1_dma); 938 } 939 940 return rc; 941 } 942 943 static void 944 mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc) 945 { 946 int ii; 947 FCPortPage1_t *pp1; 948 949 #define MPTFC_FW_DEVICE_TIMEOUT (1) 950 #define MPTFC_FW_IO_PEND_TIMEOUT (1) 951 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY) 952 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS) 953 954 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 955 if (mptfc_GetFcPortPage1(ioc, ii) != 0) 956 continue; 957 pp1 = ioc->fc_data.fc_port_page1[ii].data; 958 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT) 959 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT) 960 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS) 961 && ((pp1->Flags & OFF_FLAGS) == 0)) 962 continue; 963 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT; 964 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT; 965 pp1->Flags &= ~OFF_FLAGS; 966 pp1->Flags |= ON_FLAGS; 967 mptfc_WriteFcPortPage1(ioc, ii); 968 } 969 } 970 971 972 static void 973 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum) 974 { 975 unsigned class = 0; 976 unsigned cos = 0; 977 unsigned speed; 978 unsigned port_type; 979 unsigned port_state; 980 FCPortPage0_t *pp0; 981 struct Scsi_Host *sh; 982 char *sn; 983 984 /* don't know what to do as only one scsi (fc) host was allocated */ 985 if (portnum != 0) 986 return; 987 988 pp0 = &ioc->fc_port_page0[portnum]; 989 sh = ioc->sh; 990 991 sn = fc_host_symbolic_name(sh); 992 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh", 993 ioc->prod_name, 994 MPT_FW_REV_MAGIC_ID_STRING, 995 ioc->facts.FWVersion.Word); 996 997 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN; 998 999 fc_host_maxframe_size(sh) = pp0->MaxFrameSize; 1000 1001 fc_host_node_name(sh) = 1002 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1003 1004 fc_host_port_name(sh) = 1005 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low; 1006 1007 fc_host_port_id(sh) = pp0->PortIdentifier; 1008 1009 class = pp0->SupportedServiceClass; 1010 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1) 1011 cos |= FC_COS_CLASS1; 1012 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2) 1013 cos |= FC_COS_CLASS2; 1014 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3) 1015 cos |= FC_COS_CLASS3; 1016 fc_host_supported_classes(sh) = cos; 1017 1018 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT) 1019 speed = FC_PORTSPEED_1GBIT; 1020 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT) 1021 speed = FC_PORTSPEED_2GBIT; 1022 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT) 1023 speed = FC_PORTSPEED_4GBIT; 1024 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT) 1025 speed = FC_PORTSPEED_10GBIT; 1026 else 1027 speed = FC_PORTSPEED_UNKNOWN; 1028 fc_host_speed(sh) = speed; 1029 1030 speed = 0; 1031 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED) 1032 speed |= FC_PORTSPEED_1GBIT; 1033 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED) 1034 speed |= FC_PORTSPEED_2GBIT; 1035 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED) 1036 speed |= FC_PORTSPEED_4GBIT; 1037 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED) 1038 speed |= FC_PORTSPEED_10GBIT; 1039 fc_host_supported_speeds(sh) = speed; 1040 1041 port_state = FC_PORTSTATE_UNKNOWN; 1042 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE) 1043 port_state = FC_PORTSTATE_ONLINE; 1044 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE) 1045 port_state = FC_PORTSTATE_LINKDOWN; 1046 fc_host_port_state(sh) = port_state; 1047 1048 port_type = FC_PORTTYPE_UNKNOWN; 1049 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT) 1050 port_type = FC_PORTTYPE_PTP; 1051 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP) 1052 port_type = FC_PORTTYPE_LPORT; 1053 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP) 1054 port_type = FC_PORTTYPE_NLPORT; 1055 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT) 1056 port_type = FC_PORTTYPE_NPORT; 1057 fc_host_port_type(sh) = port_type; 1058 1059 fc_host_fabric_name(sh) = 1060 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ? 1061 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low : 1062 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1063 1064 } 1065 1066 static void 1067 mptfc_link_status_change(struct work_struct *work) 1068 { 1069 MPT_ADAPTER *ioc = 1070 container_of(work, MPT_ADAPTER, fc_rescan_work); 1071 int ii; 1072 1073 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) 1074 (void) mptfc_GetFcPortPage0(ioc, ii); 1075 1076 } 1077 1078 static void 1079 mptfc_setup_reset(struct work_struct *work) 1080 { 1081 MPT_ADAPTER *ioc = 1082 container_of(work, MPT_ADAPTER, fc_setup_reset_work); 1083 u64 pn; 1084 struct mptfc_rport_info *ri; 1085 struct scsi_target *starget; 1086 VirtTarget *vtarget; 1087 1088 /* reset about to happen, delete (block) all rports */ 1089 list_for_each_entry(ri, &ioc->fc_rports, list) { 1090 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1091 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED; 1092 fc_remote_port_delete(ri->rport); /* won't sleep */ 1093 ri->rport = NULL; 1094 starget = ri->starget; 1095 if (starget) { 1096 vtarget = starget->hostdata; 1097 if (vtarget) 1098 vtarget->deleted = 1; 1099 } 1100 1101 pn = (u64)ri->pg0.WWPN.High << 32 | 1102 (u64)ri->pg0.WWPN.Low; 1103 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1104 "mptfc_setup_reset.%d: %llx deleted\n", 1105 ioc->name, 1106 ioc->sh->host_no, 1107 (unsigned long long)pn)); 1108 } 1109 } 1110 } 1111 1112 static void 1113 mptfc_rescan_devices(struct work_struct *work) 1114 { 1115 MPT_ADAPTER *ioc = 1116 container_of(work, MPT_ADAPTER, fc_rescan_work); 1117 int ii; 1118 u64 pn; 1119 struct mptfc_rport_info *ri; 1120 struct scsi_target *starget; 1121 VirtTarget *vtarget; 1122 1123 /* start by tagging all ports as missing */ 1124 list_for_each_entry(ri, &ioc->fc_rports, list) { 1125 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1126 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; 1127 } 1128 } 1129 1130 /* 1131 * now rescan devices known to adapter, 1132 * will reregister existing rports 1133 */ 1134 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1135 (void) mptfc_GetFcPortPage0(ioc, ii); 1136 mptfc_init_host_attr(ioc, ii); /* refresh */ 1137 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev); 1138 } 1139 1140 /* delete devices still missing */ 1141 list_for_each_entry(ri, &ioc->fc_rports, list) { 1142 /* if newly missing, delete it */ 1143 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { 1144 1145 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| 1146 MPT_RPORT_INFO_FLAGS_MISSING); 1147 fc_remote_port_delete(ri->rport); /* won't sleep */ 1148 ri->rport = NULL; 1149 starget = ri->starget; 1150 if (starget) { 1151 vtarget = starget->hostdata; 1152 if (vtarget) 1153 vtarget->deleted = 1; 1154 } 1155 1156 pn = (u64)ri->pg0.WWPN.High << 32 | 1157 (u64)ri->pg0.WWPN.Low; 1158 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1159 "mptfc_rescan.%d: %llx deleted\n", 1160 ioc->name, 1161 ioc->sh->host_no, 1162 (unsigned long long)pn)); 1163 } 1164 } 1165 } 1166 1167 static int 1168 mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1169 { 1170 struct Scsi_Host *sh; 1171 MPT_SCSI_HOST *hd; 1172 MPT_ADAPTER *ioc; 1173 unsigned long flags; 1174 int ii; 1175 int numSGE = 0; 1176 int scale; 1177 int ioc_cap; 1178 int error=0; 1179 int r; 1180 1181 if ((r = mpt_attach(pdev,id)) != 0) 1182 return r; 1183 1184 ioc = pci_get_drvdata(pdev); 1185 ioc->DoneCtx = mptfcDoneCtx; 1186 ioc->TaskCtx = mptfcTaskCtx; 1187 ioc->InternalCtx = mptfcInternalCtx; 1188 1189 /* Added sanity check on readiness of the MPT adapter. 1190 */ 1191 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 1192 printk(MYIOC_s_WARN_FMT 1193 "Skipping because it's not operational!\n", 1194 ioc->name); 1195 error = -ENODEV; 1196 goto out_mptfc_probe; 1197 } 1198 1199 if (!ioc->active) { 1200 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 1201 ioc->name); 1202 error = -ENODEV; 1203 goto out_mptfc_probe; 1204 } 1205 1206 /* Sanity check - ensure at least 1 port is INITIATOR capable 1207 */ 1208 ioc_cap = 0; 1209 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1210 if (ioc->pfacts[ii].ProtocolFlags & 1211 MPI_PORTFACTS_PROTOCOL_INITIATOR) 1212 ioc_cap ++; 1213 } 1214 1215 if (!ioc_cap) { 1216 printk(MYIOC_s_WARN_FMT 1217 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", 1218 ioc->name, ioc); 1219 return 0; 1220 } 1221 1222 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST)); 1223 1224 if (!sh) { 1225 printk(MYIOC_s_WARN_FMT 1226 "Unable to register controller with SCSI subsystem\n", 1227 ioc->name); 1228 error = -1; 1229 goto out_mptfc_probe; 1230 } 1231 1232 spin_lock_init(&ioc->fc_rescan_work_lock); 1233 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices); 1234 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset); 1235 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change); 1236 1237 spin_lock_irqsave(&ioc->FreeQlock, flags); 1238 1239 /* Attach the SCSI Host to the IOC structure 1240 */ 1241 ioc->sh = sh; 1242 1243 sh->io_port = 0; 1244 sh->n_io_port = 0; 1245 sh->irq = 0; 1246 1247 /* set 16 byte cdb's */ 1248 sh->max_cmd_len = 16; 1249 1250 sh->max_id = ioc->pfacts->MaxDevices; 1251 sh->max_lun = max_lun; 1252 1253 /* Required entry. 1254 */ 1255 sh->unique_id = ioc->id; 1256 1257 /* Verify that we won't exceed the maximum 1258 * number of chain buffers 1259 * We can optimize: ZZ = req_sz/sizeof(SGE) 1260 * For 32bit SGE's: 1261 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 1262 * + (req_sz - 64)/sizeof(SGE) 1263 * A slightly different algorithm is required for 1264 * 64bit SGEs. 1265 */ 1266 scale = ioc->req_sz/ioc->SGE_size; 1267 if (ioc->sg_addr_size == sizeof(u64)) { 1268 numSGE = (scale - 1) * 1269 (ioc->facts.MaxChainDepth-1) + scale + 1270 (ioc->req_sz - 60) / ioc->SGE_size; 1271 } else { 1272 numSGE = 1 + (scale - 1) * 1273 (ioc->facts.MaxChainDepth-1) + scale + 1274 (ioc->req_sz - 64) / ioc->SGE_size; 1275 } 1276 1277 if (numSGE < sh->sg_tablesize) { 1278 /* Reset this value */ 1279 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1280 "Resetting sg_tablesize to %d from %d\n", 1281 ioc->name, numSGE, sh->sg_tablesize)); 1282 sh->sg_tablesize = numSGE; 1283 } 1284 1285 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1286 1287 hd = shost_priv(sh); 1288 hd->ioc = ioc; 1289 1290 /* SCSI needs scsi_cmnd lookup table! 1291 * (with size equal to req_depth*PtrSz!) 1292 */ 1293 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_KERNEL); 1294 if (!ioc->ScsiLookup) { 1295 error = -ENOMEM; 1296 goto out_mptfc_probe; 1297 } 1298 spin_lock_init(&ioc->scsi_lookup_lock); 1299 1300 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n", 1301 ioc->name, ioc->ScsiLookup)); 1302 1303 hd->last_queue_full = 0; 1304 1305 sh->transportt = mptfc_transport_template; 1306 error = scsi_add_host (sh, &ioc->pcidev->dev); 1307 if(error) { 1308 dprintk(ioc, printk(MYIOC_s_ERR_FMT 1309 "scsi_add_host failed\n", ioc->name)); 1310 goto out_mptfc_probe; 1311 } 1312 1313 /* initialize workqueue */ 1314 1315 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name), 1316 "mptfc_wq_%d", sh->host_no); 1317 ioc->fc_rescan_work_q = 1318 alloc_ordered_workqueue(ioc->fc_rescan_work_q_name, 1319 WQ_MEM_RECLAIM); 1320 if (!ioc->fc_rescan_work_q) { 1321 error = -ENOMEM; 1322 goto out_mptfc_host; 1323 } 1324 1325 /* 1326 * Pre-fetch FC port WWN and stuff... 1327 * (FCPortPage0_t stuff) 1328 */ 1329 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1330 (void) mptfc_GetFcPortPage0(ioc, ii); 1331 } 1332 mptfc_SetFcPortPage1_defaults(ioc); 1333 1334 /* 1335 * scan for rports - 1336 * by doing it via the workqueue, some locking is eliminated 1337 */ 1338 1339 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); 1340 flush_workqueue(ioc->fc_rescan_work_q); 1341 1342 return 0; 1343 1344 out_mptfc_host: 1345 scsi_remove_host(sh); 1346 1347 out_mptfc_probe: 1348 1349 mptscsih_remove(pdev); 1350 return error; 1351 } 1352 1353 static struct pci_driver mptfc_driver = { 1354 .name = "mptfc", 1355 .id_table = mptfc_pci_table, 1356 .probe = mptfc_probe, 1357 .remove = mptfc_remove, 1358 .shutdown = mptscsih_shutdown, 1359 #ifdef CONFIG_PM 1360 .suspend = mptscsih_suspend, 1361 .resume = mptscsih_resume, 1362 #endif 1363 }; 1364 1365 static int 1366 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 1367 { 1368 MPT_SCSI_HOST *hd; 1369 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 1370 unsigned long flags; 1371 int rc=1; 1372 1373 if (ioc->bus_type != FC) 1374 return 0; 1375 1376 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n", 1377 ioc->name, event)); 1378 1379 if (ioc->sh == NULL || 1380 ((hd = shost_priv(ioc->sh)) == NULL)) 1381 return 1; 1382 1383 switch (event) { 1384 case MPI_EVENT_RESCAN: 1385 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1386 if (ioc->fc_rescan_work_q) { 1387 queue_work(ioc->fc_rescan_work_q, 1388 &ioc->fc_rescan_work); 1389 } 1390 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1391 break; 1392 case MPI_EVENT_LINK_STATUS_CHANGE: 1393 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1394 if (ioc->fc_rescan_work_q) { 1395 queue_work(ioc->fc_rescan_work_q, 1396 &ioc->fc_lsc_work); 1397 } 1398 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1399 break; 1400 default: 1401 rc = mptscsih_event_process(ioc,pEvReply); 1402 break; 1403 } 1404 return rc; 1405 } 1406 1407 static int 1408 mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 1409 { 1410 int rc; 1411 unsigned long flags; 1412 1413 rc = mptscsih_ioc_reset(ioc,reset_phase); 1414 if ((ioc->bus_type != FC) || (!rc)) 1415 return rc; 1416 1417 1418 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1419 ": IOC %s_reset routed to FC host driver!\n",ioc->name, 1420 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( 1421 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); 1422 1423 if (reset_phase == MPT_IOC_SETUP_RESET) { 1424 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1425 if (ioc->fc_rescan_work_q) { 1426 queue_work(ioc->fc_rescan_work_q, 1427 &ioc->fc_setup_reset_work); 1428 } 1429 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1430 } 1431 1432 else if (reset_phase == MPT_IOC_PRE_RESET) { 1433 } 1434 1435 else { /* MPT_IOC_POST_RESET */ 1436 mptfc_SetFcPortPage1_defaults(ioc); 1437 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1438 if (ioc->fc_rescan_work_q) { 1439 queue_work(ioc->fc_rescan_work_q, 1440 &ioc->fc_rescan_work); 1441 } 1442 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1443 } 1444 return 1; 1445 } 1446 1447 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1448 /** 1449 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer. 1450 * 1451 * Returns 0 for success, non-zero for failure. 1452 */ 1453 static int __init 1454 mptfc_init(void) 1455 { 1456 int error; 1457 1458 show_mptmod_ver(my_NAME, my_VERSION); 1459 1460 /* sanity check module parameters */ 1461 if (mptfc_dev_loss_tmo <= 0) 1462 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; 1463 1464 mptfc_transport_template = 1465 fc_attach_transport(&mptfc_transport_functions); 1466 1467 if (!mptfc_transport_template) 1468 return -ENODEV; 1469 1470 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER, 1471 "mptscsih_scandv_complete"); 1472 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER, 1473 "mptscsih_scandv_complete"); 1474 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER, 1475 "mptscsih_scandv_complete"); 1476 1477 mpt_event_register(mptfcDoneCtx, mptfc_event_process); 1478 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset); 1479 1480 error = pci_register_driver(&mptfc_driver); 1481 if (error) 1482 fc_release_transport(mptfc_transport_template); 1483 1484 return error; 1485 } 1486 1487 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1488 /** 1489 * mptfc_remove - Remove fc infrastructure for devices 1490 * @pdev: Pointer to pci_dev structure 1491 * 1492 */ 1493 static void mptfc_remove(struct pci_dev *pdev) 1494 { 1495 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1496 struct mptfc_rport_info *p, *n; 1497 struct workqueue_struct *work_q; 1498 unsigned long flags; 1499 int ii; 1500 1501 /* destroy workqueue */ 1502 if ((work_q=ioc->fc_rescan_work_q)) { 1503 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1504 ioc->fc_rescan_work_q = NULL; 1505 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1506 destroy_workqueue(work_q); 1507 } 1508 1509 fc_remove_host(ioc->sh); 1510 1511 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) { 1512 list_del(&p->list); 1513 kfree(p); 1514 } 1515 1516 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 1517 if (ioc->fc_data.fc_port_page1[ii].data) { 1518 dma_free_coherent(&ioc->pcidev->dev, 1519 ioc->fc_data.fc_port_page1[ii].pg_sz, 1520 ioc->fc_data.fc_port_page1[ii].data, 1521 ioc->fc_data.fc_port_page1[ii].dma); 1522 ioc->fc_data.fc_port_page1[ii].data = NULL; 1523 } 1524 } 1525 1526 scsi_remove_host(ioc->sh); 1527 1528 mptscsih_remove(pdev); 1529 } 1530 1531 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1532 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1533 /** 1534 * mptfc_exit - Unregisters MPT adapter(s) 1535 * 1536 */ 1537 static void __exit 1538 mptfc_exit(void) 1539 { 1540 pci_unregister_driver(&mptfc_driver); 1541 fc_release_transport(mptfc_transport_template); 1542 1543 mpt_reset_deregister(mptfcDoneCtx); 1544 mpt_event_deregister(mptfcDoneCtx); 1545 1546 mpt_deregister(mptfcInternalCtx); 1547 mpt_deregister(mptfcTaskCtx); 1548 mpt_deregister(mptfcDoneCtx); 1549 } 1550 1551 module_init(mptfc_init); 1552 module_exit(mptfc_exit); 1553