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 kfree(starget->hostdata); 529 starget->hostdata = NULL; 530} 531 532/* 533 * OS entry point to allow host driver to alloc memory 534 * for each scsi target. Called once per device the bus scan. 535 * Return non-zero if allocation fails. 536 */ 537static int 538mptfc_target_alloc(struct scsi_target *starget) 539{ 540 VirtTarget *vtarget; 541 struct fc_rport *rport; 542 struct mptfc_rport_info *ri; 543 int rc; 544 545 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); 546 if (!vtarget) 547 return -ENOMEM; 548 starget->hostdata = vtarget; 549 550 rc = -ENODEV; 551 rport = starget_to_rport(starget); 552 if (rport) { 553 ri = *((struct mptfc_rport_info **)rport->dd_data); 554 if (ri) { /* better be! */ 555 vtarget->id = ri->pg0.CurrentTargetID; 556 vtarget->channel = ri->pg0.CurrentBus; 557 ri->starget = starget; 558 rc = 0; 559 } 560 } 561 if (rc != 0) { 562 kfree(vtarget); 563 starget->hostdata = NULL; 564 } 565 566 return rc; 567} 568/* 569 * mptfc_dump_lun_info 570 * @ioc 571 * @rport 572 * @sdev 573 * 574 */ 575static void 576mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev, 577 VirtTarget *vtarget) 578{ 579 u64 nn, pn; 580 struct mptfc_rport_info *ri; 581 582 ri = *((struct mptfc_rport_info **)rport->dd_data); 583 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 584 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 585 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 586 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, " 587 "CurrentTargetID %d, %x %llx %llx\n", 588 ioc->name, 589 sdev->host->host_no, 590 vtarget->num_luns, 591 sdev->id, ri->pg0.CurrentTargetID, 592 ri->pg0.PortIdentifier, 593 (unsigned long long)pn, 594 (unsigned long long)nn)); 595} 596 597 598/* 599 * OS entry point to allow host driver to alloc memory 600 * for each scsi device. Called once per device the bus scan. 601 * Return non-zero if allocation fails. 602 * Init memory once per LUN. 603 */ 604static int 605mptfc_slave_alloc(struct scsi_device *sdev) 606{ 607 MPT_SCSI_HOST *hd; 608 VirtTarget *vtarget; 609 VirtDevice *vdevice; 610 struct scsi_target *starget; 611 struct fc_rport *rport; 612 MPT_ADAPTER *ioc; 613 614 starget = scsi_target(sdev); 615 rport = starget_to_rport(starget); 616 617 if (!rport || fc_remote_port_chkready(rport)) 618 return -ENXIO; 619 620 hd = shost_priv(sdev->host); 621 ioc = hd->ioc; 622 623 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL); 624 if (!vdevice) { 625 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", 626 ioc->name, sizeof(VirtDevice)); 627 return -ENOMEM; 628 } 629 630 631 sdev->hostdata = vdevice; 632 vtarget = starget->hostdata; 633 634 if (vtarget->num_luns == 0) { 635 vtarget->ioc_id = ioc->id; 636 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES; 637 } 638 639 vdevice->vtarget = vtarget; 640 vdevice->lun = sdev->lun; 641 642 vtarget->num_luns++; 643 644 645 mptfc_dump_lun_info(ioc, rport, sdev, vtarget); 646 647 return 0; 648} 649 650static int 651mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt) 652{ 653 struct mptfc_rport_info *ri; 654 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); 655 int err; 656 VirtDevice *vdevice = SCpnt->device->hostdata; 657 658 if (!vdevice || !vdevice->vtarget) { 659 SCpnt->result = DID_NO_CONNECT << 16; 660 SCpnt->scsi_done(SCpnt); 661 return 0; 662 } 663 664 err = fc_remote_port_chkready(rport); 665 if (unlikely(err)) { 666 SCpnt->result = err; 667 SCpnt->scsi_done(SCpnt); 668 return 0; 669 } 670 671 /* dd_data is null until finished adding target */ 672 ri = *((struct mptfc_rport_info **)rport->dd_data); 673 if (unlikely(!ri)) { 674 SCpnt->result = DID_IMM_RETRY << 16; 675 SCpnt->scsi_done(SCpnt); 676 return 0; 677 } 678 679 return mptscsih_qcmd(SCpnt); 680} 681 682/* 683 * mptfc_display_port_link_speed - displaying link speed 684 * @ioc: Pointer to MPT_ADAPTER structure 685 * @portnum: IOC Port number 686 * @pp0dest: port page0 data payload 687 * 688 */ 689static void 690mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest) 691{ 692 u8 old_speed, new_speed, state; 693 char *old, *new; 694 695 if (portnum >= 2) 696 return; 697 698 old_speed = ioc->fc_link_speed[portnum]; 699 new_speed = pp0dest->CurrentSpeed; 700 state = pp0dest->PortState; 701 702 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE && 703 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) { 704 705 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : 706 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : 707 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : 708 "Unknown"; 709 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : 710 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : 711 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : 712 "Unknown"; 713 if (old_speed == 0) 714 printk(MYIOC_s_NOTE_FMT 715 "FC Link Established, Speed = %s\n", 716 ioc->name, new); 717 else if (old_speed != new_speed) 718 printk(MYIOC_s_WARN_FMT 719 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n", 720 ioc->name, old, new); 721 722 ioc->fc_link_speed[portnum] = new_speed; 723 } 724} 725 726/* 727 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0. 728 * @ioc: Pointer to MPT_ADAPTER structure 729 * @portnum: IOC Port number 730 * 731 * Return: 0 for success 732 * -ENOMEM if no memory available 733 * -EPERM if not allowed due to ISR context 734 * -EAGAIN if no msg frames currently available 735 * -EFAULT for non-successful reply or no reply (timeout) 736 * -EINVAL portnum arg out of range (hardwired to two elements) 737 */ 738static int 739mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) 740{ 741 ConfigPageHeader_t hdr; 742 CONFIGPARMS cfg; 743 FCPortPage0_t *ppage0_alloc; 744 FCPortPage0_t *pp0dest; 745 dma_addr_t page0_dma; 746 int data_sz; 747 int copy_sz; 748 int rc; 749 int count = 400; 750 751 if (portnum > 1) 752 return -EINVAL; 753 754 /* Get FCPort Page 0 header */ 755 hdr.PageVersion = 0; 756 hdr.PageLength = 0; 757 hdr.PageNumber = 0; 758 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 759 cfg.cfghdr.hdr = &hdr; 760 cfg.physAddr = -1; 761 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 762 cfg.dir = 0; 763 cfg.pageAddr = portnum; 764 cfg.timeout = 0; 765 766 if ((rc = mpt_config(ioc, &cfg)) != 0) 767 return rc; 768 769 if (hdr.PageLength == 0) 770 return 0; 771 772 data_sz = hdr.PageLength * 4; 773 rc = -ENOMEM; 774 ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma); 775 if (ppage0_alloc) { 776 777 try_again: 778 memset((u8 *)ppage0_alloc, 0, data_sz); 779 cfg.physAddr = page0_dma; 780 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 781 782 if ((rc = mpt_config(ioc, &cfg)) == 0) { 783 /* save the data */ 784 pp0dest = &ioc->fc_port_page0[portnum]; 785 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz); 786 memcpy(pp0dest, ppage0_alloc, copy_sz); 787 788 /* 789 * Normalize endianness of structure data, 790 * by byte-swapping all > 1 byte fields! 791 */ 792 pp0dest->Flags = le32_to_cpu(pp0dest->Flags); 793 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier); 794 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low); 795 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High); 796 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low); 797 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High); 798 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass); 799 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds); 800 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed); 801 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize); 802 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low); 803 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High); 804 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low); 805 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High); 806 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount); 807 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators); 808 809 /* 810 * if still doing discovery, 811 * hang loose a while until finished 812 */ 813 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) || 814 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE && 815 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) 816 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) { 817 if (count-- > 0) { 818 msleep(100); 819 goto try_again; 820 } 821 printk(MYIOC_s_INFO_FMT "Firmware discovery not" 822 " complete.\n", 823 ioc->name); 824 } 825 mptfc_display_port_link_speed(ioc, portnum, pp0dest); 826 } 827 828 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma); 829 } 830 831 return rc; 832} 833 834static int 835mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum) 836{ 837 ConfigPageHeader_t hdr; 838 CONFIGPARMS cfg; 839 int rc; 840 841 if (portnum > 1) 842 return -EINVAL; 843 844 if (!(ioc->fc_data.fc_port_page1[portnum].data)) 845 return -EINVAL; 846 847 /* get fcport page 1 header */ 848 hdr.PageVersion = 0; 849 hdr.PageLength = 0; 850 hdr.PageNumber = 1; 851 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 852 cfg.cfghdr.hdr = &hdr; 853 cfg.physAddr = -1; 854 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 855 cfg.dir = 0; 856 cfg.pageAddr = portnum; 857 cfg.timeout = 0; 858 859 if ((rc = mpt_config(ioc, &cfg)) != 0) 860 return rc; 861 862 if (hdr.PageLength == 0) 863 return -ENODEV; 864 865 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz) 866 return -EINVAL; 867 868 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma; 869 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 870 cfg.dir = 1; 871 872 rc = mpt_config(ioc, &cfg); 873 874 return rc; 875} 876 877static int 878mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum) 879{ 880 ConfigPageHeader_t hdr; 881 CONFIGPARMS cfg; 882 FCPortPage1_t *page1_alloc; 883 dma_addr_t page1_dma; 884 int data_sz; 885 int rc; 886 887 if (portnum > 1) 888 return -EINVAL; 889 890 /* get fcport page 1 header */ 891 hdr.PageVersion = 0; 892 hdr.PageLength = 0; 893 hdr.PageNumber = 1; 894 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 895 cfg.cfghdr.hdr = &hdr; 896 cfg.physAddr = -1; 897 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 898 cfg.dir = 0; 899 cfg.pageAddr = portnum; 900 cfg.timeout = 0; 901 902 if ((rc = mpt_config(ioc, &cfg)) != 0) 903 return rc; 904 905 if (hdr.PageLength == 0) 906 return -ENODEV; 907 908start_over: 909 910 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) { 911 data_sz = hdr.PageLength * 4; 912 if (data_sz < sizeof(FCPortPage1_t)) 913 data_sz = sizeof(FCPortPage1_t); 914 915 page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev, 916 data_sz, 917 &page1_dma); 918 if (!page1_alloc) 919 return -ENOMEM; 920 } 921 else { 922 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data; 923 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma; 924 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz; 925 if (hdr.PageLength * 4 > data_sz) { 926 ioc->fc_data.fc_port_page1[portnum].data = NULL; 927 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 928 page1_alloc, page1_dma); 929 goto start_over; 930 } 931 } 932 933 memset(page1_alloc,0,data_sz); 934 935 cfg.physAddr = page1_dma; 936 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 937 938 if ((rc = mpt_config(ioc, &cfg)) == 0) { 939 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc; 940 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz; 941 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma; 942 } 943 else { 944 ioc->fc_data.fc_port_page1[portnum].data = NULL; 945 pci_free_consistent(ioc->pcidev, data_sz, (u8 *) 946 page1_alloc, page1_dma); 947 } 948 949 return rc; 950} 951 952static void 953mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc) 954{ 955 int ii; 956 FCPortPage1_t *pp1; 957 958 #define MPTFC_FW_DEVICE_TIMEOUT (1) 959 #define MPTFC_FW_IO_PEND_TIMEOUT (1) 960 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY) 961 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS) 962 963 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 964 if (mptfc_GetFcPortPage1(ioc, ii) != 0) 965 continue; 966 pp1 = ioc->fc_data.fc_port_page1[ii].data; 967 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT) 968 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT) 969 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS) 970 && ((pp1->Flags & OFF_FLAGS) == 0)) 971 continue; 972 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT; 973 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT; 974 pp1->Flags &= ~OFF_FLAGS; 975 pp1->Flags |= ON_FLAGS; 976 mptfc_WriteFcPortPage1(ioc, ii); 977 } 978} 979 980 981static void 982mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum) 983{ 984 unsigned class = 0; 985 unsigned cos = 0; 986 unsigned speed; 987 unsigned port_type; 988 unsigned port_state; 989 FCPortPage0_t *pp0; 990 struct Scsi_Host *sh; 991 char *sn; 992 993 /* don't know what to do as only one scsi (fc) host was allocated */ 994 if (portnum != 0) 995 return; 996 997 pp0 = &ioc->fc_port_page0[portnum]; 998 sh = ioc->sh; 999 1000 sn = fc_host_symbolic_name(sh); 1001 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh", 1002 ioc->prod_name, 1003 MPT_FW_REV_MAGIC_ID_STRING, 1004 ioc->facts.FWVersion.Word); 1005 1006 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN; 1007 1008 fc_host_maxframe_size(sh) = pp0->MaxFrameSize; 1009 1010 fc_host_node_name(sh) = 1011 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1012 1013 fc_host_port_name(sh) = 1014 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low; 1015 1016 fc_host_port_id(sh) = pp0->PortIdentifier; 1017 1018 class = pp0->SupportedServiceClass; 1019 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1) 1020 cos |= FC_COS_CLASS1; 1021 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2) 1022 cos |= FC_COS_CLASS2; 1023 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3) 1024 cos |= FC_COS_CLASS3; 1025 fc_host_supported_classes(sh) = cos; 1026 1027 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT) 1028 speed = FC_PORTSPEED_1GBIT; 1029 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT) 1030 speed = FC_PORTSPEED_2GBIT; 1031 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT) 1032 speed = FC_PORTSPEED_4GBIT; 1033 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT) 1034 speed = FC_PORTSPEED_10GBIT; 1035 else 1036 speed = FC_PORTSPEED_UNKNOWN; 1037 fc_host_speed(sh) = speed; 1038 1039 speed = 0; 1040 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED) 1041 speed |= FC_PORTSPEED_1GBIT; 1042 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED) 1043 speed |= FC_PORTSPEED_2GBIT; 1044 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED) 1045 speed |= FC_PORTSPEED_4GBIT; 1046 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED) 1047 speed |= FC_PORTSPEED_10GBIT; 1048 fc_host_supported_speeds(sh) = speed; 1049 1050 port_state = FC_PORTSTATE_UNKNOWN; 1051 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE) 1052 port_state = FC_PORTSTATE_ONLINE; 1053 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE) 1054 port_state = FC_PORTSTATE_LINKDOWN; 1055 fc_host_port_state(sh) = port_state; 1056 1057 port_type = FC_PORTTYPE_UNKNOWN; 1058 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT) 1059 port_type = FC_PORTTYPE_PTP; 1060 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP) 1061 port_type = FC_PORTTYPE_LPORT; 1062 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP) 1063 port_type = FC_PORTTYPE_NLPORT; 1064 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT) 1065 port_type = FC_PORTTYPE_NPORT; 1066 fc_host_port_type(sh) = port_type; 1067 1068 fc_host_fabric_name(sh) = 1069 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ? 1070 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low : 1071 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1072 1073} 1074 1075static void 1076mptfc_link_status_change(struct work_struct *work) 1077{ 1078 MPT_ADAPTER *ioc = 1079 container_of(work, MPT_ADAPTER, fc_rescan_work); 1080 int ii; 1081 1082 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) 1083 (void) mptfc_GetFcPortPage0(ioc, ii); 1084 1085} 1086 1087static void 1088mptfc_setup_reset(struct work_struct *work) 1089{ 1090 MPT_ADAPTER *ioc = 1091 container_of(work, MPT_ADAPTER, fc_setup_reset_work); 1092 u64 pn; 1093 struct mptfc_rport_info *ri; 1094 struct scsi_target *starget; 1095 VirtTarget *vtarget; 1096 1097 /* reset about to happen, delete (block) all rports */ 1098 list_for_each_entry(ri, &ioc->fc_rports, list) { 1099 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1100 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED; 1101 fc_remote_port_delete(ri->rport); /* won't sleep */ 1102 ri->rport = NULL; 1103 starget = ri->starget; 1104 if (starget) { 1105 vtarget = starget->hostdata; 1106 if (vtarget) 1107 vtarget->deleted = 1; 1108 } 1109 1110 pn = (u64)ri->pg0.WWPN.High << 32 | 1111 (u64)ri->pg0.WWPN.Low; 1112 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1113 "mptfc_setup_reset.%d: %llx deleted\n", 1114 ioc->name, 1115 ioc->sh->host_no, 1116 (unsigned long long)pn)); 1117 } 1118 } 1119} 1120 1121static void 1122mptfc_rescan_devices(struct work_struct *work) 1123{ 1124 MPT_ADAPTER *ioc = 1125 container_of(work, MPT_ADAPTER, fc_rescan_work); 1126 int ii; 1127 u64 pn; 1128 struct mptfc_rport_info *ri; 1129 struct scsi_target *starget; 1130 VirtTarget *vtarget; 1131 1132 /* start by tagging all ports as missing */ 1133 list_for_each_entry(ri, &ioc->fc_rports, list) { 1134 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1135 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; 1136 } 1137 } 1138 1139 /* 1140 * now rescan devices known to adapter, 1141 * will reregister existing rports 1142 */ 1143 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1144 (void) mptfc_GetFcPortPage0(ioc, ii); 1145 mptfc_init_host_attr(ioc, ii); /* refresh */ 1146 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev); 1147 } 1148 1149 /* delete devices still missing */ 1150 list_for_each_entry(ri, &ioc->fc_rports, list) { 1151 /* if newly missing, delete it */ 1152 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { 1153 1154 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| 1155 MPT_RPORT_INFO_FLAGS_MISSING); 1156 fc_remote_port_delete(ri->rport); /* won't sleep */ 1157 ri->rport = NULL; 1158 starget = ri->starget; 1159 if (starget) { 1160 vtarget = starget->hostdata; 1161 if (vtarget) 1162 vtarget->deleted = 1; 1163 } 1164 1165 pn = (u64)ri->pg0.WWPN.High << 32 | 1166 (u64)ri->pg0.WWPN.Low; 1167 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1168 "mptfc_rescan.%d: %llx deleted\n", 1169 ioc->name, 1170 ioc->sh->host_no, 1171 (unsigned long long)pn)); 1172 } 1173 } 1174} 1175 1176static int 1177mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1178{ 1179 struct Scsi_Host *sh; 1180 MPT_SCSI_HOST *hd; 1181 MPT_ADAPTER *ioc; 1182 unsigned long flags; 1183 int ii; 1184 int numSGE = 0; 1185 int scale; 1186 int ioc_cap; 1187 int error=0; 1188 int r; 1189 1190 if ((r = mpt_attach(pdev,id)) != 0) 1191 return r; 1192 1193 ioc = pci_get_drvdata(pdev); 1194 ioc->DoneCtx = mptfcDoneCtx; 1195 ioc->TaskCtx = mptfcTaskCtx; 1196 ioc->InternalCtx = mptfcInternalCtx; 1197 1198 /* Added sanity check on readiness of the MPT adapter. 1199 */ 1200 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 1201 printk(MYIOC_s_WARN_FMT 1202 "Skipping because it's not operational!\n", 1203 ioc->name); 1204 error = -ENODEV; 1205 goto out_mptfc_probe; 1206 } 1207 1208 if (!ioc->active) { 1209 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 1210 ioc->name); 1211 error = -ENODEV; 1212 goto out_mptfc_probe; 1213 } 1214 1215 /* Sanity check - ensure at least 1 port is INITIATOR capable 1216 */ 1217 ioc_cap = 0; 1218 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1219 if (ioc->pfacts[ii].ProtocolFlags & 1220 MPI_PORTFACTS_PROTOCOL_INITIATOR) 1221 ioc_cap ++; 1222 } 1223 1224 if (!ioc_cap) { 1225 printk(MYIOC_s_WARN_FMT 1226 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", 1227 ioc->name, ioc); 1228 return 0; 1229 } 1230 1231 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST)); 1232 1233 if (!sh) { 1234 printk(MYIOC_s_WARN_FMT 1235 "Unable to register controller with SCSI subsystem\n", 1236 ioc->name); 1237 error = -1; 1238 goto out_mptfc_probe; 1239 } 1240 1241 spin_lock_init(&ioc->fc_rescan_work_lock); 1242 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices); 1243 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset); 1244 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change); 1245 1246 spin_lock_irqsave(&ioc->FreeQlock, flags); 1247 1248 /* Attach the SCSI Host to the IOC structure 1249 */ 1250 ioc->sh = sh; 1251 1252 sh->io_port = 0; 1253 sh->n_io_port = 0; 1254 sh->irq = 0; 1255 1256 /* set 16 byte cdb's */ 1257 sh->max_cmd_len = 16; 1258 1259 sh->max_id = ioc->pfacts->MaxDevices; 1260 sh->max_lun = max_lun; 1261 1262 /* Required entry. 1263 */ 1264 sh->unique_id = ioc->id; 1265 1266 /* Verify that we won't exceed the maximum 1267 * number of chain buffers 1268 * We can optimize: ZZ = req_sz/sizeof(SGE) 1269 * For 32bit SGE's: 1270 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 1271 * + (req_sz - 64)/sizeof(SGE) 1272 * A slightly different algorithm is required for 1273 * 64bit SGEs. 1274 */ 1275 scale = ioc->req_sz/ioc->SGE_size; 1276 if (ioc->sg_addr_size == sizeof(u64)) { 1277 numSGE = (scale - 1) * 1278 (ioc->facts.MaxChainDepth-1) + scale + 1279 (ioc->req_sz - 60) / ioc->SGE_size; 1280 } else { 1281 numSGE = 1 + (scale - 1) * 1282 (ioc->facts.MaxChainDepth-1) + scale + 1283 (ioc->req_sz - 64) / ioc->SGE_size; 1284 } 1285 1286 if (numSGE < sh->sg_tablesize) { 1287 /* Reset this value */ 1288 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1289 "Resetting sg_tablesize to %d from %d\n", 1290 ioc->name, numSGE, sh->sg_tablesize)); 1291 sh->sg_tablesize = numSGE; 1292 } 1293 1294 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1295 1296 hd = shost_priv(sh); 1297 hd->ioc = ioc; 1298 1299 /* SCSI needs scsi_cmnd lookup table! 1300 * (with size equal to req_depth*PtrSz!) 1301 */ 1302 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC); 1303 if (!ioc->ScsiLookup) { 1304 error = -ENOMEM; 1305 goto out_mptfc_probe; 1306 } 1307 spin_lock_init(&ioc->scsi_lookup_lock); 1308 1309 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n", 1310 ioc->name, ioc->ScsiLookup)); 1311 1312 hd->last_queue_full = 0; 1313 1314 sh->transportt = mptfc_transport_template; 1315 error = scsi_add_host (sh, &ioc->pcidev->dev); 1316 if(error) { 1317 dprintk(ioc, printk(MYIOC_s_ERR_FMT 1318 "scsi_add_host failed\n", ioc->name)); 1319 goto out_mptfc_probe; 1320 } 1321 1322 /* initialize workqueue */ 1323 1324 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name), 1325 "mptfc_wq_%d", sh->host_no); 1326 ioc->fc_rescan_work_q = 1327 create_singlethread_workqueue(ioc->fc_rescan_work_q_name); 1328 if (!ioc->fc_rescan_work_q) 1329 goto out_mptfc_probe; 1330 1331 /* 1332 * Pre-fetch FC port WWN and stuff... 1333 * (FCPortPage0_t stuff) 1334 */ 1335 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1336 (void) mptfc_GetFcPortPage0(ioc, ii); 1337 } 1338 mptfc_SetFcPortPage1_defaults(ioc); 1339 1340 /* 1341 * scan for rports - 1342 * by doing it via the workqueue, some locking is eliminated 1343 */ 1344 1345 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); 1346 flush_workqueue(ioc->fc_rescan_work_q); 1347 1348 return 0; 1349 1350out_mptfc_probe: 1351 1352 mptscsih_remove(pdev); 1353 return error; 1354} 1355 1356static struct pci_driver mptfc_driver = { 1357 .name = "mptfc", 1358 .id_table = mptfc_pci_table, 1359 .probe = mptfc_probe, 1360 .remove = mptfc_remove, 1361 .shutdown = mptscsih_shutdown, 1362#ifdef CONFIG_PM 1363 .suspend = mptscsih_suspend, 1364 .resume = mptscsih_resume, 1365#endif 1366}; 1367 1368static int 1369mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 1370{ 1371 MPT_SCSI_HOST *hd; 1372 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 1373 unsigned long flags; 1374 int rc=1; 1375 1376 if (ioc->bus_type != FC) 1377 return 0; 1378 1379 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n", 1380 ioc->name, event)); 1381 1382 if (ioc->sh == NULL || 1383 ((hd = shost_priv(ioc->sh)) == NULL)) 1384 return 1; 1385 1386 switch (event) { 1387 case MPI_EVENT_RESCAN: 1388 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1389 if (ioc->fc_rescan_work_q) { 1390 queue_work(ioc->fc_rescan_work_q, 1391 &ioc->fc_rescan_work); 1392 } 1393 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1394 break; 1395 case MPI_EVENT_LINK_STATUS_CHANGE: 1396 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1397 if (ioc->fc_rescan_work_q) { 1398 queue_work(ioc->fc_rescan_work_q, 1399 &ioc->fc_lsc_work); 1400 } 1401 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1402 break; 1403 default: 1404 rc = mptscsih_event_process(ioc,pEvReply); 1405 break; 1406 } 1407 return rc; 1408} 1409 1410static int 1411mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 1412{ 1413 int rc; 1414 unsigned long flags; 1415 1416 rc = mptscsih_ioc_reset(ioc,reset_phase); 1417 if ((ioc->bus_type != FC) || (!rc)) 1418 return rc; 1419 1420 1421 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1422 ": IOC %s_reset routed to FC host driver!\n",ioc->name, 1423 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( 1424 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); 1425 1426 if (reset_phase == MPT_IOC_SETUP_RESET) { 1427 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1428 if (ioc->fc_rescan_work_q) { 1429 queue_work(ioc->fc_rescan_work_q, 1430 &ioc->fc_setup_reset_work); 1431 } 1432 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1433 } 1434 1435 else if (reset_phase == MPT_IOC_PRE_RESET) { 1436 } 1437 1438 else { /* MPT_IOC_POST_RESET */ 1439 mptfc_SetFcPortPage1_defaults(ioc); 1440 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1441 if (ioc->fc_rescan_work_q) { 1442 queue_work(ioc->fc_rescan_work_q, 1443 &ioc->fc_rescan_work); 1444 } 1445 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1446 } 1447 return 1; 1448} 1449 1450/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1451/** 1452 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer. 1453 * 1454 * Returns 0 for success, non-zero for failure. 1455 */ 1456static int __init 1457mptfc_init(void) 1458{ 1459 int error; 1460 1461 show_mptmod_ver(my_NAME, my_VERSION); 1462 1463 /* sanity check module parameters */ 1464 if (mptfc_dev_loss_tmo <= 0) 1465 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; 1466 1467 mptfc_transport_template = 1468 fc_attach_transport(&mptfc_transport_functions); 1469 1470 if (!mptfc_transport_template) 1471 return -ENODEV; 1472 1473 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER, 1474 "mptscsih_scandv_complete"); 1475 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER, 1476 "mptscsih_scandv_complete"); 1477 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER, 1478 "mptscsih_scandv_complete"); 1479 1480 mpt_event_register(mptfcDoneCtx, mptfc_event_process); 1481 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset); 1482 1483 error = pci_register_driver(&mptfc_driver); 1484 if (error) 1485 fc_release_transport(mptfc_transport_template); 1486 1487 return error; 1488} 1489 1490/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1491/** 1492 * mptfc_remove - Remove fc infrastructure for devices 1493 * @pdev: Pointer to pci_dev structure 1494 * 1495 */ 1496static void mptfc_remove(struct pci_dev *pdev) 1497{ 1498 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1499 struct mptfc_rport_info *p, *n; 1500 struct workqueue_struct *work_q; 1501 unsigned long flags; 1502 int ii; 1503 1504 /* destroy workqueue */ 1505 if ((work_q=ioc->fc_rescan_work_q)) { 1506 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1507 ioc->fc_rescan_work_q = NULL; 1508 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1509 destroy_workqueue(work_q); 1510 } 1511 1512 fc_remove_host(ioc->sh); 1513 1514 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) { 1515 list_del(&p->list); 1516 kfree(p); 1517 } 1518 1519 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 1520 if (ioc->fc_data.fc_port_page1[ii].data) { 1521 pci_free_consistent(ioc->pcidev, 1522 ioc->fc_data.fc_port_page1[ii].pg_sz, 1523 (u8 *) ioc->fc_data.fc_port_page1[ii].data, 1524 ioc->fc_data.fc_port_page1[ii].dma); 1525 ioc->fc_data.fc_port_page1[ii].data = NULL; 1526 } 1527 } 1528 1529 mptscsih_remove(pdev); 1530} 1531 1532/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1533/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1534/** 1535 * mptfc_exit - Unregisters MPT adapter(s) 1536 * 1537 */ 1538static void __exit 1539mptfc_exit(void) 1540{ 1541 pci_unregister_driver(&mptfc_driver); 1542 fc_release_transport(mptfc_transport_template); 1543 1544 mpt_reset_deregister(mptfcDoneCtx); 1545 mpt_event_deregister(mptfcDoneCtx); 1546 1547 mpt_deregister(mptfcInternalCtx); 1548 mpt_deregister(mptfcTaskCtx); 1549 mpt_deregister(mptfcDoneCtx); 1550} 1551 1552module_init(mptfc_init); 1553module_exit(mptfc_exit); 1554