mptfc.c revision 9cb78c16f5dadefd8dc5ba0ae5a2f26cd59419b3
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 74MODULE_AUTHOR(MODULEAUTHOR); 75MODULE_DESCRIPTION(my_NAME); 76MODULE_LICENSE("GPL"); 77MODULE_VERSION(my_VERSION); 78 79/* Command line args */ 80#define MPTFC_DEV_LOSS_TMO (60) 81static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */ 82module_param(mptfc_dev_loss_tmo, int, 0); 83MODULE_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) 90static int max_lun = MPTFC_MAX_LUN; 91module_param(max_lun, int, 0); 92MODULE_PARM_DESC(max_lun, " max lun, default=16895 "); 93 94static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS; 95static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS; 96static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS; 97 98static int mptfc_target_alloc(struct scsi_target *starget); 99static int mptfc_slave_alloc(struct scsi_device *sdev); 100static int mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt); 101static void mptfc_target_destroy(struct scsi_target *starget); 102static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout); 103static void mptfc_remove(struct pci_dev *pdev); 104static int mptfc_abort(struct scsi_cmnd *SCpnt); 105static int mptfc_dev_reset(struct scsi_cmnd *SCpnt); 106static int mptfc_bus_reset(struct scsi_cmnd *SCpnt); 107static int mptfc_host_reset(struct scsi_cmnd *SCpnt); 108 109static struct scsi_host_template mptfc_driver_template = { 110 .module = THIS_MODULE, 111 .proc_name = "mptfc", 112 .show_info = mptscsih_show_info, 113 .name = "MPT FC Host", 114 .info = mptscsih_info, 115 .queuecommand = mptfc_qcmd, 116 .target_alloc = mptfc_target_alloc, 117 .slave_alloc = mptfc_slave_alloc, 118 .slave_configure = mptscsih_slave_configure, 119 .target_destroy = mptfc_target_destroy, 120 .slave_destroy = mptscsih_slave_destroy, 121 .change_queue_depth = mptscsih_change_queue_depth, 122 .eh_abort_handler = mptfc_abort, 123 .eh_device_reset_handler = mptfc_dev_reset, 124 .eh_bus_reset_handler = mptfc_bus_reset, 125 .eh_host_reset_handler = mptfc_host_reset, 126 .bios_param = mptscsih_bios_param, 127 .can_queue = MPT_FC_CAN_QUEUE, 128 .this_id = -1, 129 .sg_tablesize = MPT_SCSI_SG_DEPTH, 130 .max_sectors = 8192, 131 .cmd_per_lun = 7, 132 .use_clustering = ENABLE_CLUSTERING, 133 .shost_attrs = mptscsih_host_attrs, 134}; 135 136/**************************************************************************** 137 * Supported hardware 138 */ 139 140static struct pci_device_id mptfc_pci_table[] = { 141 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909, 142 PCI_ANY_ID, PCI_ANY_ID }, 143 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919, 144 PCI_ANY_ID, PCI_ANY_ID }, 145 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929, 146 PCI_ANY_ID, PCI_ANY_ID }, 147 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X, 148 PCI_ANY_ID, PCI_ANY_ID }, 149 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X, 150 PCI_ANY_ID, PCI_ANY_ID }, 151 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X, 152 PCI_ANY_ID, PCI_ANY_ID }, 153 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X, 154 PCI_ANY_ID, PCI_ANY_ID }, 155 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E, 156 PCI_ANY_ID, PCI_ANY_ID }, 157 { PCI_VENDOR_ID_BROCADE, MPI_MANUFACTPAGE_DEVICEID_FC949E, 158 PCI_ANY_ID, PCI_ANY_ID }, 159 {0} /* Terminating entry */ 160}; 161MODULE_DEVICE_TABLE(pci, mptfc_pci_table); 162 163static struct scsi_transport_template *mptfc_transport_template = NULL; 164 165static struct fc_function_template mptfc_transport_functions = { 166 .dd_fcrport_size = 8, 167 .show_host_node_name = 1, 168 .show_host_port_name = 1, 169 .show_host_supported_classes = 1, 170 .show_host_port_id = 1, 171 .show_rport_supported_classes = 1, 172 .show_starget_node_name = 1, 173 .show_starget_port_name = 1, 174 .show_starget_port_id = 1, 175 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo, 176 .show_rport_dev_loss_tmo = 1, 177 .show_host_supported_speeds = 1, 178 .show_host_maxframe_size = 1, 179 .show_host_speed = 1, 180 .show_host_fabric_name = 1, 181 .show_host_port_type = 1, 182 .show_host_port_state = 1, 183 .show_host_symbolic_name = 1, 184}; 185 186static int 187mptfc_block_error_handler(struct scsi_cmnd *SCpnt, 188 int (*func)(struct scsi_cmnd *SCpnt), 189 const char *caller) 190{ 191 MPT_SCSI_HOST *hd; 192 struct scsi_device *sdev = SCpnt->device; 193 struct Scsi_Host *shost = sdev->host; 194 struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); 195 unsigned long flags; 196 int ready; 197 MPT_ADAPTER *ioc; 198 int loops = 40; /* seconds */ 199 200 hd = shost_priv(SCpnt->device->host); 201 ioc = hd->ioc; 202 spin_lock_irqsave(shost->host_lock, flags); 203 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY 204 || (loops > 0 && ioc->active == 0)) { 205 spin_unlock_irqrestore(shost->host_lock, flags); 206 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 207 "mptfc_block_error_handler.%d: %d:%llu, port status is " 208 "%x, active flag %d, deferring %s recovery.\n", 209 ioc->name, ioc->sh->host_no, 210 SCpnt->device->id, SCpnt->device->lun, 211 ready, ioc->active, caller)); 212 msleep(1000); 213 spin_lock_irqsave(shost->host_lock, flags); 214 loops --; 215 } 216 spin_unlock_irqrestore(shost->host_lock, flags); 217 218 if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata 219 || ioc->active == 0) { 220 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 221 "%s.%d: %d:%llu, failing recovery, " 222 "port state %x, active %d, vdevice %p.\n", caller, 223 ioc->name, ioc->sh->host_no, 224 SCpnt->device->id, SCpnt->device->lun, ready, 225 ioc->active, SCpnt->device->hostdata)); 226 return FAILED; 227 } 228 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 229 "%s.%d: %d:%llu, executing recovery.\n", caller, 230 ioc->name, ioc->sh->host_no, 231 SCpnt->device->id, SCpnt->device->lun)); 232 return (*func)(SCpnt); 233} 234 235static int 236mptfc_abort(struct scsi_cmnd *SCpnt) 237{ 238 return 239 mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__); 240} 241 242static int 243mptfc_dev_reset(struct scsi_cmnd *SCpnt) 244{ 245 return 246 mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__); 247} 248 249static int 250mptfc_bus_reset(struct scsi_cmnd *SCpnt) 251{ 252 return 253 mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__); 254} 255 256static int 257mptfc_host_reset(struct scsi_cmnd *SCpnt) 258{ 259 return 260 mptfc_block_error_handler(SCpnt, mptscsih_host_reset, __func__); 261} 262 263static void 264mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 265{ 266 if (timeout > 0) 267 rport->dev_loss_tmo = timeout; 268 else 269 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 270} 271 272static int 273mptfc_FcDevPage0_cmp_func(const void *a, const void *b) 274{ 275 FCDevicePage0_t **aa = (FCDevicePage0_t **)a; 276 FCDevicePage0_t **bb = (FCDevicePage0_t **)b; 277 278 if ((*aa)->CurrentBus == (*bb)->CurrentBus) { 279 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID) 280 return 0; 281 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID) 282 return -1; 283 return 1; 284 } 285 if ((*aa)->CurrentBus < (*bb)->CurrentBus) 286 return -1; 287 return 1; 288} 289 290static int 291mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port, 292 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg)) 293{ 294 ConfigPageHeader_t hdr; 295 CONFIGPARMS cfg; 296 FCDevicePage0_t *ppage0_alloc, *fc; 297 dma_addr_t page0_dma; 298 int data_sz; 299 int ii; 300 301 FCDevicePage0_t *p0_array=NULL, *p_p0; 302 FCDevicePage0_t **pp0_array=NULL, **p_pp0; 303 304 int rc = -ENOMEM; 305 U32 port_id = 0xffffff; 306 int num_targ = 0; 307 int max_bus = ioc->facts.MaxBuses; 308 int max_targ; 309 310 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices; 311 312 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ; 313 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL); 314 if (!p0_array) 315 goto out; 316 317 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ; 318 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL); 319 if (!pp0_array) 320 goto out; 321 322 do { 323 /* Get FC Device Page 0 header */ 324 hdr.PageVersion = 0; 325 hdr.PageLength = 0; 326 hdr.PageNumber = 0; 327 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE; 328 cfg.cfghdr.hdr = &hdr; 329 cfg.physAddr = -1; 330 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 331 cfg.dir = 0; 332 cfg.pageAddr = port_id; 333 cfg.timeout = 0; 334 335 if ((rc = mpt_config(ioc, &cfg)) != 0) 336 break; 337 338 if (hdr.PageLength <= 0) 339 break; 340 341 data_sz = hdr.PageLength * 4; 342 ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, 343 &page0_dma); 344 rc = -ENOMEM; 345 if (!ppage0_alloc) 346 break; 347 348 cfg.physAddr = page0_dma; 349 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 350 351 if ((rc = mpt_config(ioc, &cfg)) == 0) { 352 ppage0_alloc->PortIdentifier = 353 le32_to_cpu(ppage0_alloc->PortIdentifier); 354 355 ppage0_alloc->WWNN.Low = 356 le32_to_cpu(ppage0_alloc->WWNN.Low); 357 358 ppage0_alloc->WWNN.High = 359 le32_to_cpu(ppage0_alloc->WWNN.High); 360 361 ppage0_alloc->WWPN.Low = 362 le32_to_cpu(ppage0_alloc->WWPN.Low); 363 364 ppage0_alloc->WWPN.High = 365 le32_to_cpu(ppage0_alloc->WWPN.High); 366 367 ppage0_alloc->BBCredit = 368 le16_to_cpu(ppage0_alloc->BBCredit); 369 370 ppage0_alloc->MaxRxFrameSize = 371 le16_to_cpu(ppage0_alloc->MaxRxFrameSize); 372 373 port_id = ppage0_alloc->PortIdentifier; 374 num_targ++; 375 *p_p0 = *ppage0_alloc; /* save data */ 376 *p_pp0++ = p_p0++; /* save addr */ 377 } 378 pci_free_consistent(ioc->pcidev, data_sz, 379 (u8 *) ppage0_alloc, page0_dma); 380 if (rc != 0) 381 break; 382 383 } while (port_id <= 0xff0000); 384 385 if (num_targ) { 386 /* sort array */ 387 if (num_targ > 1) 388 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *), 389 mptfc_FcDevPage0_cmp_func, NULL); 390 /* call caller's func for each targ */ 391 for (ii = 0; ii < num_targ; ii++) { 392 fc = *(pp0_array+ii); 393 func(ioc, ioc_port, fc); 394 } 395 } 396 397 out: 398 kfree(pp0_array); 399 kfree(p0_array); 400 return rc; 401} 402 403static int 404mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid) 405{ 406 /* not currently usable */ 407 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID | 408 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID)) 409 return -1; 410 411 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID)) 412 return -1; 413 414 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET)) 415 return -1; 416 417 /* 418 * board data structure already normalized to platform endianness 419 * shifted to avoid unaligned access on 64 bit architecture 420 */ 421 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low; 422 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low; 423 rid->port_id = pg0->PortIdentifier; 424 rid->roles = FC_RPORT_ROLE_UNKNOWN; 425 426 return 0; 427} 428 429static void 430mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0) 431{ 432 struct fc_rport_identifiers rport_ids; 433 struct fc_rport *rport; 434 struct mptfc_rport_info *ri; 435 int new_ri = 1; 436 u64 pn, nn; 437 VirtTarget *vtarget; 438 u32 roles = FC_RPORT_ROLE_UNKNOWN; 439 440 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0) 441 return; 442 443 roles |= FC_RPORT_ROLE_FCP_TARGET; 444 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR) 445 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 446 447 /* scan list looking for a match */ 448 list_for_each_entry(ri, &ioc->fc_rports, list) { 449 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 450 if (pn == rport_ids.port_name) { /* match */ 451 list_move_tail(&ri->list, &ioc->fc_rports); 452 new_ri = 0; 453 break; 454 } 455 } 456 if (new_ri) { /* allocate one */ 457 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL); 458 if (!ri) 459 return; 460 list_add_tail(&ri->list, &ioc->fc_rports); 461 } 462 463 ri->pg0 = *pg0; /* add/update pg0 data */ 464 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING; 465 466 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */ 467 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) { 468 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED; 469 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids); 470 if (rport) { 471 ri->rport = rport; 472 if (new_ri) /* may have been reset by user */ 473 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 474 /* 475 * if already mapped, remap here. If not mapped, 476 * target_alloc will allocate vtarget and map, 477 * slave_alloc will fill in vdevice from vtarget. 478 */ 479 if (ri->starget) { 480 vtarget = ri->starget->hostdata; 481 if (vtarget) { 482 vtarget->id = pg0->CurrentTargetID; 483 vtarget->channel = pg0->CurrentBus; 484 vtarget->deleted = 0; 485 } 486 } 487 *((struct mptfc_rport_info **)rport->dd_data) = ri; 488 /* scan will be scheduled once rport becomes a target */ 489 fc_remote_port_rolechg(rport,roles); 490 491 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 492 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 493 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 494 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, " 495 "rport tid %d, tmo %d\n", 496 ioc->name, 497 ioc->sh->host_no, 498 pg0->PortIdentifier, 499 (unsigned long long)nn, 500 (unsigned long long)pn, 501 pg0->CurrentTargetID, 502 ri->rport->scsi_target_id, 503 ri->rport->dev_loss_tmo)); 504 } else { 505 list_del(&ri->list); 506 kfree(ri); 507 ri = NULL; 508 } 509 } 510} 511 512/* 513 * OS entry point to allow for host driver to free allocated memory 514 * Called if no device present or device being unloaded 515 */ 516static void 517mptfc_target_destroy(struct scsi_target *starget) 518{ 519 struct fc_rport *rport; 520 struct mptfc_rport_info *ri; 521 522 rport = starget_to_rport(starget); 523 if (rport) { 524 ri = *((struct mptfc_rport_info **)rport->dd_data); 525 if (ri) /* better be! */ 526 ri->starget = NULL; 527 } 528 if (starget->hostdata) 529 kfree(starget->hostdata); 530 starget->hostdata = NULL; 531} 532 533/* 534 * OS entry point to allow host driver to alloc memory 535 * for each scsi target. Called once per device the bus scan. 536 * Return non-zero if allocation fails. 537 */ 538static int 539mptfc_target_alloc(struct scsi_target *starget) 540{ 541 VirtTarget *vtarget; 542 struct fc_rport *rport; 543 struct mptfc_rport_info *ri; 544 int rc; 545 546 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); 547 if (!vtarget) 548 return -ENOMEM; 549 starget->hostdata = vtarget; 550 551 rc = -ENODEV; 552 rport = starget_to_rport(starget); 553 if (rport) { 554 ri = *((struct mptfc_rport_info **)rport->dd_data); 555 if (ri) { /* better be! */ 556 vtarget->id = ri->pg0.CurrentTargetID; 557 vtarget->channel = ri->pg0.CurrentBus; 558 ri->starget = starget; 559 rc = 0; 560 } 561 } 562 if (rc != 0) { 563 kfree(vtarget); 564 starget->hostdata = NULL; 565 } 566 567 return rc; 568} 569/* 570 * mptfc_dump_lun_info 571 * @ioc 572 * @rport 573 * @sdev 574 * 575 */ 576static void 577mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev, 578 VirtTarget *vtarget) 579{ 580 u64 nn, pn; 581 struct mptfc_rport_info *ri; 582 583 ri = *((struct mptfc_rport_info **)rport->dd_data); 584 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 585 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 586 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 587 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, " 588 "CurrentTargetID %d, %x %llx %llx\n", 589 ioc->name, 590 sdev->host->host_no, 591 vtarget->num_luns, 592 sdev->id, ri->pg0.CurrentTargetID, 593 ri->pg0.PortIdentifier, 594 (unsigned long long)pn, 595 (unsigned long long)nn)); 596} 597 598 599/* 600 * OS entry point to allow host driver to alloc memory 601 * for each scsi device. Called once per device the bus scan. 602 * Return non-zero if allocation fails. 603 * Init memory once per LUN. 604 */ 605static int 606mptfc_slave_alloc(struct scsi_device *sdev) 607{ 608 MPT_SCSI_HOST *hd; 609 VirtTarget *vtarget; 610 VirtDevice *vdevice; 611 struct scsi_target *starget; 612 struct fc_rport *rport; 613 MPT_ADAPTER *ioc; 614 615 starget = scsi_target(sdev); 616 rport = starget_to_rport(starget); 617 618 if (!rport || fc_remote_port_chkready(rport)) 619 return -ENXIO; 620 621 hd = shost_priv(sdev->host); 622 ioc = hd->ioc; 623 624 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL); 625 if (!vdevice) { 626 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", 627 ioc->name, sizeof(VirtDevice)); 628 return -ENOMEM; 629 } 630 631 632 sdev->hostdata = vdevice; 633 vtarget = starget->hostdata; 634 635 if (vtarget->num_luns == 0) { 636 vtarget->ioc_id = ioc->id; 637 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES; 638 } 639 640 vdevice->vtarget = vtarget; 641 vdevice->lun = sdev->lun; 642 643 vtarget->num_luns++; 644 645 646 mptfc_dump_lun_info(ioc, rport, sdev, vtarget); 647 648 return 0; 649} 650 651static int 652mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt) 653{ 654 struct mptfc_rport_info *ri; 655 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); 656 int err; 657 VirtDevice *vdevice = SCpnt->device->hostdata; 658 659 if (!vdevice || !vdevice->vtarget) { 660 SCpnt->result = DID_NO_CONNECT << 16; 661 SCpnt->scsi_done(SCpnt); 662 return 0; 663 } 664 665 err = fc_remote_port_chkready(rport); 666 if (unlikely(err)) { 667 SCpnt->result = err; 668 SCpnt->scsi_done(SCpnt); 669 return 0; 670 } 671 672 /* dd_data is null until finished adding target */ 673 ri = *((struct mptfc_rport_info **)rport->dd_data); 674 if (unlikely(!ri)) { 675 SCpnt->result = DID_IMM_RETRY << 16; 676 SCpnt->scsi_done(SCpnt); 677 return 0; 678 } 679 680 return mptscsih_qcmd(SCpnt); 681} 682 683/* 684 * mptfc_display_port_link_speed - displaying link speed 685 * @ioc: Pointer to MPT_ADAPTER structure 686 * @portnum: IOC Port number 687 * @pp0dest: port page0 data payload 688 * 689 */ 690static void 691mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest) 692{ 693 u8 old_speed, new_speed, state; 694 char *old, *new; 695 696 if (portnum >= 2) 697 return; 698 699 old_speed = ioc->fc_link_speed[portnum]; 700 new_speed = pp0dest->CurrentSpeed; 701 state = pp0dest->PortState; 702 703 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE && 704 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) { 705 706 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : 707 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : 708 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : 709 "Unknown"; 710 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : 711 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : 712 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : 713 "Unknown"; 714 if (old_speed == 0) 715 printk(MYIOC_s_NOTE_FMT 716 "FC Link Established, Speed = %s\n", 717 ioc->name, new); 718 else if (old_speed != new_speed) 719 printk(MYIOC_s_WARN_FMT 720 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n", 721 ioc->name, old, new); 722 723 ioc->fc_link_speed[portnum] = new_speed; 724 } 725} 726 727/* 728 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0. 729 * @ioc: Pointer to MPT_ADAPTER structure 730 * @portnum: IOC Port number 731 * 732 * Return: 0 for success 733 * -ENOMEM if no memory available 734 * -EPERM if not allowed due to ISR context 735 * -EAGAIN if no msg frames currently available 736 * -EFAULT for non-successful reply or no reply (timeout) 737 * -EINVAL portnum arg out of range (hardwired to two elements) 738 */ 739static int 740mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) 741{ 742 ConfigPageHeader_t hdr; 743 CONFIGPARMS cfg; 744 FCPortPage0_t *ppage0_alloc; 745 FCPortPage0_t *pp0dest; 746 dma_addr_t page0_dma; 747 int data_sz; 748 int copy_sz; 749 int rc; 750 int count = 400; 751 752 if (portnum > 1) 753 return -EINVAL; 754 755 /* Get FCPort Page 0 header */ 756 hdr.PageVersion = 0; 757 hdr.PageLength = 0; 758 hdr.PageNumber = 0; 759 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 760 cfg.cfghdr.hdr = &hdr; 761 cfg.physAddr = -1; 762 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 763 cfg.dir = 0; 764 cfg.pageAddr = portnum; 765 cfg.timeout = 0; 766 767 if ((rc = mpt_config(ioc, &cfg)) != 0) 768 return rc; 769 770 if (hdr.PageLength == 0) 771 return 0; 772 773 data_sz = hdr.PageLength * 4; 774 rc = -ENOMEM; 775 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma); 776 if (ppage0_alloc) { 777 778 try_again: 779 memset((u8 *)ppage0_alloc, 0, data_sz); 780 cfg.physAddr = page0_dma; 781 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 782 783 if ((rc = mpt_config(ioc, &cfg)) == 0) { 784 /* save the data */ 785 pp0dest = &ioc->fc_port_page0[portnum]; 786 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz); 787 memcpy(pp0dest, ppage0_alloc, copy_sz); 788 789 /* 790 * Normalize endianness of structure data, 791 * by byte-swapping all > 1 byte fields! 792 */ 793 pp0dest->Flags = le32_to_cpu(pp0dest->Flags); 794 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier); 795 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low); 796 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High); 797 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low); 798 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High); 799 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass); 800 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds); 801 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed); 802 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize); 803 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low); 804 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High); 805 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low); 806 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High); 807 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount); 808 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators); 809 810 /* 811 * if still doing discovery, 812 * hang loose a while until finished 813 */ 814 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) || 815 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE && 816 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) 817 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) { 818 if (count-- > 0) { 819 msleep(100); 820 goto try_again; 821 } 822 printk(MYIOC_s_INFO_FMT "Firmware discovery not" 823 " complete.\n", 824 ioc->name); 825 } 826 mptfc_display_port_link_speed(ioc, portnum, pp0dest); 827 } 828 829 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma); 830 } 831 832 return rc; 833} 834 835static int 836mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum) 837{ 838 ConfigPageHeader_t hdr; 839 CONFIGPARMS cfg; 840 int rc; 841 842 if (portnum > 1) 843 return -EINVAL; 844 845 if (!(ioc->fc_data.fc_port_page1[portnum].data)) 846 return -EINVAL; 847 848 /* get fcport page 1 header */ 849 hdr.PageVersion = 0; 850 hdr.PageLength = 0; 851 hdr.PageNumber = 1; 852 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 853 cfg.cfghdr.hdr = &hdr; 854 cfg.physAddr = -1; 855 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 856 cfg.dir = 0; 857 cfg.pageAddr = portnum; 858 cfg.timeout = 0; 859 860 if ((rc = mpt_config(ioc, &cfg)) != 0) 861 return rc; 862 863 if (hdr.PageLength == 0) 864 return -ENODEV; 865 866 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz) 867 return -EINVAL; 868 869 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma; 870 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 871 cfg.dir = 1; 872 873 rc = mpt_config(ioc, &cfg); 874 875 return rc; 876} 877 878static int 879mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum) 880{ 881 ConfigPageHeader_t hdr; 882 CONFIGPARMS cfg; 883 FCPortPage1_t *page1_alloc; 884 dma_addr_t page1_dma; 885 int data_sz; 886 int rc; 887 888 if (portnum > 1) 889 return -EINVAL; 890 891 /* get fcport page 1 header */ 892 hdr.PageVersion = 0; 893 hdr.PageLength = 0; 894 hdr.PageNumber = 1; 895 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 896 cfg.cfghdr.hdr = &hdr; 897 cfg.physAddr = -1; 898 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 899 cfg.dir = 0; 900 cfg.pageAddr = portnum; 901 cfg.timeout = 0; 902 903 if ((rc = mpt_config(ioc, &cfg)) != 0) 904 return rc; 905 906 if (hdr.PageLength == 0) 907 return -ENODEV; 908 909start_over: 910 911 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) { 912 data_sz = hdr.PageLength * 4; 913 if (data_sz < sizeof(FCPortPage1_t)) 914 data_sz = sizeof(FCPortPage1_t); 915 916 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev, 917 data_sz, 918 &page1_dma); 919 if (!page1_alloc) 920 return -ENOMEM; 921 } 922 else { 923 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data; 924 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma; 925 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz; 926 if (hdr.PageLength * 4 > data_sz) { 927 ioc->fc_data.fc_port_page1[portnum].data = NULL; 928 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 929 page1_alloc, page1_dma); 930 goto start_over; 931 } 932 } 933 934 memset(page1_alloc,0,data_sz); 935 936 cfg.physAddr = page1_dma; 937 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 938 939 if ((rc = mpt_config(ioc, &cfg)) == 0) { 940 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc; 941 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz; 942 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma; 943 } 944 else { 945 ioc->fc_data.fc_port_page1[portnum].data = NULL; 946 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 947 page1_alloc, page1_dma); 948 } 949 950 return rc; 951} 952 953static void 954mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc) 955{ 956 int ii; 957 FCPortPage1_t *pp1; 958 959 #define MPTFC_FW_DEVICE_TIMEOUT (1) 960 #define MPTFC_FW_IO_PEND_TIMEOUT (1) 961 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY) 962 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS) 963 964 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 965 if (mptfc_GetFcPortPage1(ioc, ii) != 0) 966 continue; 967 pp1 = ioc->fc_data.fc_port_page1[ii].data; 968 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT) 969 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT) 970 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS) 971 && ((pp1->Flags & OFF_FLAGS) == 0)) 972 continue; 973 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT; 974 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT; 975 pp1->Flags &= ~OFF_FLAGS; 976 pp1->Flags |= ON_FLAGS; 977 mptfc_WriteFcPortPage1(ioc, ii); 978 } 979} 980 981 982static void 983mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum) 984{ 985 unsigned class = 0; 986 unsigned cos = 0; 987 unsigned speed; 988 unsigned port_type; 989 unsigned port_state; 990 FCPortPage0_t *pp0; 991 struct Scsi_Host *sh; 992 char *sn; 993 994 /* don't know what to do as only one scsi (fc) host was allocated */ 995 if (portnum != 0) 996 return; 997 998 pp0 = &ioc->fc_port_page0[portnum]; 999 sh = ioc->sh; 1000 1001 sn = fc_host_symbolic_name(sh); 1002 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh", 1003 ioc->prod_name, 1004 MPT_FW_REV_MAGIC_ID_STRING, 1005 ioc->facts.FWVersion.Word); 1006 1007 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN; 1008 1009 fc_host_maxframe_size(sh) = pp0->MaxFrameSize; 1010 1011 fc_host_node_name(sh) = 1012 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1013 1014 fc_host_port_name(sh) = 1015 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low; 1016 1017 fc_host_port_id(sh) = pp0->PortIdentifier; 1018 1019 class = pp0->SupportedServiceClass; 1020 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1) 1021 cos |= FC_COS_CLASS1; 1022 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2) 1023 cos |= FC_COS_CLASS2; 1024 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3) 1025 cos |= FC_COS_CLASS3; 1026 fc_host_supported_classes(sh) = cos; 1027 1028 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT) 1029 speed = FC_PORTSPEED_1GBIT; 1030 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT) 1031 speed = FC_PORTSPEED_2GBIT; 1032 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT) 1033 speed = FC_PORTSPEED_4GBIT; 1034 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT) 1035 speed = FC_PORTSPEED_10GBIT; 1036 else 1037 speed = FC_PORTSPEED_UNKNOWN; 1038 fc_host_speed(sh) = speed; 1039 1040 speed = 0; 1041 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED) 1042 speed |= FC_PORTSPEED_1GBIT; 1043 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED) 1044 speed |= FC_PORTSPEED_2GBIT; 1045 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED) 1046 speed |= FC_PORTSPEED_4GBIT; 1047 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED) 1048 speed |= FC_PORTSPEED_10GBIT; 1049 fc_host_supported_speeds(sh) = speed; 1050 1051 port_state = FC_PORTSTATE_UNKNOWN; 1052 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE) 1053 port_state = FC_PORTSTATE_ONLINE; 1054 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE) 1055 port_state = FC_PORTSTATE_LINKDOWN; 1056 fc_host_port_state(sh) = port_state; 1057 1058 port_type = FC_PORTTYPE_UNKNOWN; 1059 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT) 1060 port_type = FC_PORTTYPE_PTP; 1061 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP) 1062 port_type = FC_PORTTYPE_LPORT; 1063 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP) 1064 port_type = FC_PORTTYPE_NLPORT; 1065 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT) 1066 port_type = FC_PORTTYPE_NPORT; 1067 fc_host_port_type(sh) = port_type; 1068 1069 fc_host_fabric_name(sh) = 1070 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ? 1071 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low : 1072 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1073 1074} 1075 1076static void 1077mptfc_link_status_change(struct work_struct *work) 1078{ 1079 MPT_ADAPTER *ioc = 1080 container_of(work, MPT_ADAPTER, fc_rescan_work); 1081 int ii; 1082 1083 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) 1084 (void) mptfc_GetFcPortPage0(ioc, ii); 1085 1086} 1087 1088static void 1089mptfc_setup_reset(struct work_struct *work) 1090{ 1091 MPT_ADAPTER *ioc = 1092 container_of(work, MPT_ADAPTER, fc_setup_reset_work); 1093 u64 pn; 1094 struct mptfc_rport_info *ri; 1095 struct scsi_target *starget; 1096 VirtTarget *vtarget; 1097 1098 /* reset about to happen, delete (block) all rports */ 1099 list_for_each_entry(ri, &ioc->fc_rports, list) { 1100 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1101 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED; 1102 fc_remote_port_delete(ri->rport); /* won't sleep */ 1103 ri->rport = NULL; 1104 starget = ri->starget; 1105 if (starget) { 1106 vtarget = starget->hostdata; 1107 if (vtarget) 1108 vtarget->deleted = 1; 1109 } 1110 1111 pn = (u64)ri->pg0.WWPN.High << 32 | 1112 (u64)ri->pg0.WWPN.Low; 1113 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1114 "mptfc_setup_reset.%d: %llx deleted\n", 1115 ioc->name, 1116 ioc->sh->host_no, 1117 (unsigned long long)pn)); 1118 } 1119 } 1120} 1121 1122static void 1123mptfc_rescan_devices(struct work_struct *work) 1124{ 1125 MPT_ADAPTER *ioc = 1126 container_of(work, MPT_ADAPTER, fc_rescan_work); 1127 int ii; 1128 u64 pn; 1129 struct mptfc_rport_info *ri; 1130 struct scsi_target *starget; 1131 VirtTarget *vtarget; 1132 1133 /* start by tagging all ports as missing */ 1134 list_for_each_entry(ri, &ioc->fc_rports, list) { 1135 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1136 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; 1137 } 1138 } 1139 1140 /* 1141 * now rescan devices known to adapter, 1142 * will reregister existing rports 1143 */ 1144 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1145 (void) mptfc_GetFcPortPage0(ioc, ii); 1146 mptfc_init_host_attr(ioc, ii); /* refresh */ 1147 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev); 1148 } 1149 1150 /* delete devices still missing */ 1151 list_for_each_entry(ri, &ioc->fc_rports, list) { 1152 /* if newly missing, delete it */ 1153 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { 1154 1155 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| 1156 MPT_RPORT_INFO_FLAGS_MISSING); 1157 fc_remote_port_delete(ri->rport); /* won't sleep */ 1158 ri->rport = NULL; 1159 starget = ri->starget; 1160 if (starget) { 1161 vtarget = starget->hostdata; 1162 if (vtarget) 1163 vtarget->deleted = 1; 1164 } 1165 1166 pn = (u64)ri->pg0.WWPN.High << 32 | 1167 (u64)ri->pg0.WWPN.Low; 1168 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1169 "mptfc_rescan.%d: %llx deleted\n", 1170 ioc->name, 1171 ioc->sh->host_no, 1172 (unsigned long long)pn)); 1173 } 1174 } 1175} 1176 1177static int 1178mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1179{ 1180 struct Scsi_Host *sh; 1181 MPT_SCSI_HOST *hd; 1182 MPT_ADAPTER *ioc; 1183 unsigned long flags; 1184 int ii; 1185 int numSGE = 0; 1186 int scale; 1187 int ioc_cap; 1188 int error=0; 1189 int r; 1190 1191 if ((r = mpt_attach(pdev,id)) != 0) 1192 return r; 1193 1194 ioc = pci_get_drvdata(pdev); 1195 ioc->DoneCtx = mptfcDoneCtx; 1196 ioc->TaskCtx = mptfcTaskCtx; 1197 ioc->InternalCtx = mptfcInternalCtx; 1198 1199 /* Added sanity check on readiness of the MPT adapter. 1200 */ 1201 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 1202 printk(MYIOC_s_WARN_FMT 1203 "Skipping because it's not operational!\n", 1204 ioc->name); 1205 error = -ENODEV; 1206 goto out_mptfc_probe; 1207 } 1208 1209 if (!ioc->active) { 1210 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 1211 ioc->name); 1212 error = -ENODEV; 1213 goto out_mptfc_probe; 1214 } 1215 1216 /* Sanity check - ensure at least 1 port is INITIATOR capable 1217 */ 1218 ioc_cap = 0; 1219 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1220 if (ioc->pfacts[ii].ProtocolFlags & 1221 MPI_PORTFACTS_PROTOCOL_INITIATOR) 1222 ioc_cap ++; 1223 } 1224 1225 if (!ioc_cap) { 1226 printk(MYIOC_s_WARN_FMT 1227 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", 1228 ioc->name, ioc); 1229 return 0; 1230 } 1231 1232 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST)); 1233 1234 if (!sh) { 1235 printk(MYIOC_s_WARN_FMT 1236 "Unable to register controller with SCSI subsystem\n", 1237 ioc->name); 1238 error = -1; 1239 goto out_mptfc_probe; 1240 } 1241 1242 spin_lock_init(&ioc->fc_rescan_work_lock); 1243 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices); 1244 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset); 1245 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change); 1246 1247 spin_lock_irqsave(&ioc->FreeQlock, flags); 1248 1249 /* Attach the SCSI Host to the IOC structure 1250 */ 1251 ioc->sh = sh; 1252 1253 sh->io_port = 0; 1254 sh->n_io_port = 0; 1255 sh->irq = 0; 1256 1257 /* set 16 byte cdb's */ 1258 sh->max_cmd_len = 16; 1259 1260 sh->max_id = ioc->pfacts->MaxDevices; 1261 sh->max_lun = max_lun; 1262 1263 /* Required entry. 1264 */ 1265 sh->unique_id = ioc->id; 1266 1267 /* Verify that we won't exceed the maximum 1268 * number of chain buffers 1269 * We can optimize: ZZ = req_sz/sizeof(SGE) 1270 * For 32bit SGE's: 1271 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 1272 * + (req_sz - 64)/sizeof(SGE) 1273 * A slightly different algorithm is required for 1274 * 64bit SGEs. 1275 */ 1276 scale = ioc->req_sz/ioc->SGE_size; 1277 if (ioc->sg_addr_size == sizeof(u64)) { 1278 numSGE = (scale - 1) * 1279 (ioc->facts.MaxChainDepth-1) + scale + 1280 (ioc->req_sz - 60) / ioc->SGE_size; 1281 } else { 1282 numSGE = 1 + (scale - 1) * 1283 (ioc->facts.MaxChainDepth-1) + scale + 1284 (ioc->req_sz - 64) / ioc->SGE_size; 1285 } 1286 1287 if (numSGE < sh->sg_tablesize) { 1288 /* Reset this value */ 1289 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1290 "Resetting sg_tablesize to %d from %d\n", 1291 ioc->name, numSGE, sh->sg_tablesize)); 1292 sh->sg_tablesize = numSGE; 1293 } 1294 1295 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1296 1297 hd = shost_priv(sh); 1298 hd->ioc = ioc; 1299 1300 /* SCSI needs scsi_cmnd lookup table! 1301 * (with size equal to req_depth*PtrSz!) 1302 */ 1303 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); 1304 if (!ioc->ScsiLookup) { 1305 error = -ENOMEM; 1306 goto out_mptfc_probe; 1307 } 1308 spin_lock_init(&ioc->scsi_lookup_lock); 1309 1310 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n", 1311 ioc->name, ioc->ScsiLookup)); 1312 1313 hd->last_queue_full = 0; 1314 1315 sh->transportt = mptfc_transport_template; 1316 error = scsi_add_host (sh, &ioc->pcidev->dev); 1317 if(error) { 1318 dprintk(ioc, printk(MYIOC_s_ERR_FMT 1319 "scsi_add_host failed\n", ioc->name)); 1320 goto out_mptfc_probe; 1321 } 1322 1323 /* initialize workqueue */ 1324 1325 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name), 1326 "mptfc_wq_%d", sh->host_no); 1327 ioc->fc_rescan_work_q = 1328 create_singlethread_workqueue(ioc->fc_rescan_work_q_name); 1329 if (!ioc->fc_rescan_work_q) 1330 goto out_mptfc_probe; 1331 1332 /* 1333 * Pre-fetch FC port WWN and stuff... 1334 * (FCPortPage0_t stuff) 1335 */ 1336 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1337 (void) mptfc_GetFcPortPage0(ioc, ii); 1338 } 1339 mptfc_SetFcPortPage1_defaults(ioc); 1340 1341 /* 1342 * scan for rports - 1343 * by doing it via the workqueue, some locking is eliminated 1344 */ 1345 1346 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); 1347 flush_workqueue(ioc->fc_rescan_work_q); 1348 1349 return 0; 1350 1351out_mptfc_probe: 1352 1353 mptscsih_remove(pdev); 1354 return error; 1355} 1356 1357static struct pci_driver mptfc_driver = { 1358 .name = "mptfc", 1359 .id_table = mptfc_pci_table, 1360 .probe = mptfc_probe, 1361 .remove = mptfc_remove, 1362 .shutdown = mptscsih_shutdown, 1363#ifdef CONFIG_PM 1364 .suspend = mptscsih_suspend, 1365 .resume = mptscsih_resume, 1366#endif 1367}; 1368 1369static int 1370mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 1371{ 1372 MPT_SCSI_HOST *hd; 1373 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 1374 unsigned long flags; 1375 int rc=1; 1376 1377 if (ioc->bus_type != FC) 1378 return 0; 1379 1380 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n", 1381 ioc->name, event)); 1382 1383 if (ioc->sh == NULL || 1384 ((hd = shost_priv(ioc->sh)) == NULL)) 1385 return 1; 1386 1387 switch (event) { 1388 case MPI_EVENT_RESCAN: 1389 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1390 if (ioc->fc_rescan_work_q) { 1391 queue_work(ioc->fc_rescan_work_q, 1392 &ioc->fc_rescan_work); 1393 } 1394 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1395 break; 1396 case MPI_EVENT_LINK_STATUS_CHANGE: 1397 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1398 if (ioc->fc_rescan_work_q) { 1399 queue_work(ioc->fc_rescan_work_q, 1400 &ioc->fc_lsc_work); 1401 } 1402 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1403 break; 1404 default: 1405 rc = mptscsih_event_process(ioc,pEvReply); 1406 break; 1407 } 1408 return rc; 1409} 1410 1411static int 1412mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 1413{ 1414 int rc; 1415 unsigned long flags; 1416 1417 rc = mptscsih_ioc_reset(ioc,reset_phase); 1418 if ((ioc->bus_type != FC) || (!rc)) 1419 return rc; 1420 1421 1422 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1423 ": IOC %s_reset routed to FC host driver!\n",ioc->name, 1424 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( 1425 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); 1426 1427 if (reset_phase == MPT_IOC_SETUP_RESET) { 1428 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1429 if (ioc->fc_rescan_work_q) { 1430 queue_work(ioc->fc_rescan_work_q, 1431 &ioc->fc_setup_reset_work); 1432 } 1433 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1434 } 1435 1436 else if (reset_phase == MPT_IOC_PRE_RESET) { 1437 } 1438 1439 else { /* MPT_IOC_POST_RESET */ 1440 mptfc_SetFcPortPage1_defaults(ioc); 1441 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1442 if (ioc->fc_rescan_work_q) { 1443 queue_work(ioc->fc_rescan_work_q, 1444 &ioc->fc_rescan_work); 1445 } 1446 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1447 } 1448 return 1; 1449} 1450 1451/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1452/** 1453 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer. 1454 * 1455 * Returns 0 for success, non-zero for failure. 1456 */ 1457static int __init 1458mptfc_init(void) 1459{ 1460 int error; 1461 1462 show_mptmod_ver(my_NAME, my_VERSION); 1463 1464 /* sanity check module parameters */ 1465 if (mptfc_dev_loss_tmo <= 0) 1466 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; 1467 1468 mptfc_transport_template = 1469 fc_attach_transport(&mptfc_transport_functions); 1470 1471 if (!mptfc_transport_template) 1472 return -ENODEV; 1473 1474 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER, 1475 "mptscsih_scandv_complete"); 1476 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER, 1477 "mptscsih_scandv_complete"); 1478 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER, 1479 "mptscsih_scandv_complete"); 1480 1481 mpt_event_register(mptfcDoneCtx, mptfc_event_process); 1482 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset); 1483 1484 error = pci_register_driver(&mptfc_driver); 1485 if (error) 1486 fc_release_transport(mptfc_transport_template); 1487 1488 return error; 1489} 1490 1491/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1492/** 1493 * mptfc_remove - Remove fc infrastructure for devices 1494 * @pdev: Pointer to pci_dev structure 1495 * 1496 */ 1497static void mptfc_remove(struct pci_dev *pdev) 1498{ 1499 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1500 struct mptfc_rport_info *p, *n; 1501 struct workqueue_struct *work_q; 1502 unsigned long flags; 1503 int ii; 1504 1505 /* destroy workqueue */ 1506 if ((work_q=ioc->fc_rescan_work_q)) { 1507 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1508 ioc->fc_rescan_work_q = NULL; 1509 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1510 destroy_workqueue(work_q); 1511 } 1512 1513 fc_remove_host(ioc->sh); 1514 1515 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) { 1516 list_del(&p->list); 1517 kfree(p); 1518 } 1519 1520 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 1521 if (ioc->fc_data.fc_port_page1[ii].data) { 1522 pci_free_consistent(ioc->pcidev, 1523 ioc->fc_data.fc_port_page1[ii].pg_sz, 1524 (u8 *) ioc->fc_data.fc_port_page1[ii].data, 1525 ioc->fc_data.fc_port_page1[ii].dma); 1526 ioc->fc_data.fc_port_page1[ii].data = NULL; 1527 } 1528 } 1529 1530 mptscsih_remove(pdev); 1531} 1532 1533/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1534/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1535/** 1536 * mptfc_exit - Unregisters MPT adapter(s) 1537 * 1538 */ 1539static void __exit 1540mptfc_exit(void) 1541{ 1542 pci_unregister_driver(&mptfc_driver); 1543 fc_release_transport(mptfc_transport_template); 1544 1545 mpt_reset_deregister(mptfcDoneCtx); 1546 mpt_event_deregister(mptfcDoneCtx); 1547 1548 mpt_deregister(mptfcInternalCtx); 1549 mpt_deregister(mptfcTaskCtx); 1550 mpt_deregister(mptfcDoneCtx); 1551} 1552 1553module_init(mptfc_init); 1554module_exit(mptfc_exit); 1555