scsi_ctl.c revision 314748
1/*- 2 * Copyright (c) 2008, 2009 Silicon Graphics International Corp. 3 * Copyright (c) 2014-2015 Alexander Motin <mav@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer, 11 * without modification. 12 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 13 * substantially similar to the "NO WARRANTY" disclaimer below 14 * ("Disclaimer") and any redistribution must be conditioned upon 15 * including a substantially similar Disclaimer requirement for further 16 * binary redistribution. 17 * 18 * NO WARRANTY 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 27 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 28 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGES. 30 * 31 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/scsi_ctl.c#4 $ 32 */ 33/* 34 * Peripheral driver interface between CAM and CTL (CAM Target Layer). 35 * 36 * Author: Ken Merry <ken@FreeBSD.org> 37 */ 38 39#include <sys/cdefs.h> 40__FBSDID("$FreeBSD: stable/11/sys/cam/ctl/scsi_ctl.c 314748 2017-03-06 06:31:42Z mav $"); 41 42#include <sys/param.h> 43#include <sys/queue.h> 44#include <sys/systm.h> 45#include <sys/kernel.h> 46#include <sys/lock.h> 47#include <sys/mutex.h> 48#include <sys/condvar.h> 49#include <sys/malloc.h> 50#include <sys/bus.h> 51#include <sys/endian.h> 52#include <sys/sbuf.h> 53#include <sys/sysctl.h> 54#include <sys/types.h> 55#include <sys/systm.h> 56#include <sys/taskqueue.h> 57#include <machine/bus.h> 58 59#include <cam/cam.h> 60#include <cam/cam_ccb.h> 61#include <cam/cam_periph.h> 62#include <cam/cam_queue.h> 63#include <cam/cam_xpt_periph.h> 64#include <cam/cam_debug.h> 65#include <cam/cam_sim.h> 66#include <cam/cam_xpt.h> 67 68#include <cam/scsi/scsi_all.h> 69#include <cam/scsi/scsi_message.h> 70 71#include <cam/ctl/ctl_io.h> 72#include <cam/ctl/ctl.h> 73#include <cam/ctl/ctl_frontend.h> 74#include <cam/ctl/ctl_util.h> 75#include <cam/ctl/ctl_error.h> 76 77struct ctlfe_softc { 78 struct ctl_port port; 79 path_id_t path_id; 80 target_id_t target_id; 81 uint32_t hba_misc; 82 u_int maxio; 83 struct cam_sim *sim; 84 char port_name[DEV_IDLEN]; 85 struct mtx lun_softc_mtx; 86 STAILQ_HEAD(, ctlfe_lun_softc) lun_softc_list; 87 STAILQ_ENTRY(ctlfe_softc) links; 88}; 89 90STAILQ_HEAD(, ctlfe_softc) ctlfe_softc_list; 91struct mtx ctlfe_list_mtx; 92static char ctlfe_mtx_desc[] = "ctlfelist"; 93#ifdef CTLFE_INIT_ENABLE 94static int ctlfe_max_targets = 1; 95static int ctlfe_num_targets = 0; 96#endif 97 98typedef enum { 99 CTLFE_LUN_NONE = 0x00, 100 CTLFE_LUN_WILDCARD = 0x01 101} ctlfe_lun_flags; 102 103struct ctlfe_lun_softc { 104 struct ctlfe_softc *parent_softc; 105 struct cam_periph *periph; 106 ctlfe_lun_flags flags; 107 int ctios_sent; /* Number of active CTIOs */ 108 int refcount; /* Number of active xpt_action() */ 109 int atios_alloced; /* Number of ATIOs not freed */ 110 int inots_alloced; /* Number of INOTs not freed */ 111 struct task refdrain_task; 112 TAILQ_HEAD(, ccb_hdr) work_queue; 113 STAILQ_ENTRY(ctlfe_lun_softc) links; 114}; 115 116typedef enum { 117 CTLFE_CMD_NONE = 0x00, 118 CTLFE_CMD_PIECEWISE = 0x01 119} ctlfe_cmd_flags; 120 121struct ctlfe_cmd_info { 122 int cur_transfer_index; 123 size_t cur_transfer_off; 124 ctlfe_cmd_flags flags; 125 /* 126 * XXX KDM struct bus_dma_segment is 8 bytes on i386, and 16 127 * bytes on amd64. So with 32 elements, this is 256 bytes on 128 * i386 and 512 bytes on amd64. 129 */ 130#define CTLFE_MAX_SEGS 32 131 bus_dma_segment_t cam_sglist[CTLFE_MAX_SEGS]; 132}; 133 134/* 135 * When we register the adapter/bus, request that this many ctl_ios be 136 * allocated. This should be the maximum supported by the adapter, but we 137 * currently don't have a way to get that back from the path inquiry. 138 * XXX KDM add that to the path inquiry. 139 */ 140#define CTLFE_REQ_CTL_IO 4096 141/* 142 * Number of Accept Target I/O CCBs to allocate and queue down to the 143 * adapter per LUN. 144 * XXX KDM should this be controlled by CTL? 145 */ 146#define CTLFE_ATIO_PER_LUN 1024 147/* 148 * Number of Immediate Notify CCBs (used for aborts, resets, etc.) to 149 * allocate and queue down to the adapter per LUN. 150 * XXX KDM should this be controlled by CTL? 151 */ 152#define CTLFE_IN_PER_LUN 1024 153 154/* 155 * Timeout (in seconds) on CTIO CCB allocation for doing a DMA or sending 156 * status to the initiator. The SIM is expected to have its own timeouts, 157 * so we're not putting this timeout around the CCB execution time. The 158 * SIM should timeout and let us know if it has an issue. 159 */ 160#define CTLFE_DMA_TIMEOUT 60 161 162/* 163 * Turn this on to enable extra debugging prints. 164 */ 165#if 0 166#define CTLFE_DEBUG 167#endif 168 169/* 170 * Use randomly assigned WWNN/WWPN values. This is to work around an issue 171 * in the FreeBSD initiator that makes it unable to rescan the target if 172 * the target gets rebooted and the WWNN/WWPN stay the same. 173 */ 174#if 0 175#define RANDOM_WWNN 176#endif 177 178MALLOC_DEFINE(M_CTLFE, "CAM CTL FE", "CAM CTL FE interface"); 179 180#define io_ptr ppriv_ptr0 181 182/* This is only used in the CTIO */ 183#define ccb_atio ppriv_ptr1 184 185#define PRIV_CCB(io) ((io)->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptrs[0]) 186#define PRIV_INFO(io) ((io)->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptrs[1]) 187 188static int ctlfeinitialize(void); 189static int ctlfeshutdown(void); 190static periph_init_t ctlfeperiphinit; 191static void ctlfeasync(void *callback_arg, uint32_t code, 192 struct cam_path *path, void *arg); 193static periph_ctor_t ctlferegister; 194static periph_oninv_t ctlfeoninvalidate; 195static periph_dtor_t ctlfecleanup; 196static periph_start_t ctlfestart; 197static void ctlfedone(struct cam_periph *periph, 198 union ccb *done_ccb); 199 200static void ctlfe_onoffline(void *arg, int online); 201static void ctlfe_online(void *arg); 202static void ctlfe_offline(void *arg); 203static int ctlfe_lun_enable(void *arg, int lun_id); 204static int ctlfe_lun_disable(void *arg, int lun_id); 205static void ctlfe_dump_sim(struct cam_sim *sim); 206static void ctlfe_dump_queue(struct ctlfe_lun_softc *softc); 207static void ctlfe_datamove(union ctl_io *io); 208static void ctlfe_done(union ctl_io *io); 209static void ctlfe_dump(void); 210static void ctlfe_free_ccb(struct cam_periph *periph, 211 union ccb *ccb); 212static void ctlfe_requeue_ccb(struct cam_periph *periph, 213 union ccb *ccb, int unlock); 214 215static struct periph_driver ctlfe_driver = 216{ 217 ctlfeperiphinit, "ctl", 218 TAILQ_HEAD_INITIALIZER(ctlfe_driver.units), /*generation*/ 0, 219 CAM_PERIPH_DRV_EARLY 220}; 221 222static struct ctl_frontend ctlfe_frontend = 223{ 224 .name = "camtgt", 225 .init = ctlfeinitialize, 226 .fe_dump = ctlfe_dump, 227 .shutdown = ctlfeshutdown, 228}; 229CTL_FRONTEND_DECLARE(ctlfe, ctlfe_frontend); 230 231static int 232ctlfeshutdown(void) 233{ 234 235 /* CAM does not support periph driver unregister now. */ 236 return (EBUSY); 237} 238 239static int 240ctlfeinitialize(void) 241{ 242 243 STAILQ_INIT(&ctlfe_softc_list); 244 mtx_init(&ctlfe_list_mtx, ctlfe_mtx_desc, NULL, MTX_DEF); 245 periphdriver_register(&ctlfe_driver); 246 return (0); 247} 248 249static void 250ctlfeperiphinit(void) 251{ 252 cam_status status; 253 254 status = xpt_register_async(AC_PATH_REGISTERED | AC_PATH_DEREGISTERED | 255 AC_CONTRACT, ctlfeasync, NULL, NULL); 256 if (status != CAM_REQ_CMP) { 257 printf("ctl: Failed to attach async callback due to CAM " 258 "status 0x%x!\n", status); 259 } 260} 261 262static void 263ctlfeasync(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 264{ 265 struct ctlfe_softc *softc; 266 267#ifdef CTLFEDEBUG 268 printf("%s: entered\n", __func__); 269#endif 270 271 mtx_lock(&ctlfe_list_mtx); 272 STAILQ_FOREACH(softc, &ctlfe_softc_list, links) { 273 if (softc->path_id == xpt_path_path_id(path)) 274 break; 275 } 276 mtx_unlock(&ctlfe_list_mtx); 277 278 /* 279 * When a new path gets registered, and it is capable of target 280 * mode, go ahead and attach. Later on, we may need to be more 281 * selective, but for now this will be sufficient. 282 */ 283 switch (code) { 284 case AC_PATH_REGISTERED: { 285 struct ctl_port *port; 286 struct ccb_pathinq *cpi; 287 int retval; 288 289 cpi = (struct ccb_pathinq *)arg; 290 291 /* Don't attach if it doesn't support target mode */ 292 if ((cpi->target_sprt & PIT_PROCESSOR) == 0) { 293#ifdef CTLFEDEBUG 294 printf("%s: SIM %s%d doesn't support target mode\n", 295 __func__, cpi->dev_name, cpi->unit_number); 296#endif 297 break; 298 } 299 300 if (softc != NULL) { 301#ifdef CTLFEDEBUG 302 printf("%s: CTL port for CAM path %u already exists\n", 303 __func__, xpt_path_path_id(path)); 304#endif 305 break; 306 } 307 308#ifdef CTLFE_INIT_ENABLE 309 if (ctlfe_num_targets >= ctlfe_max_targets) { 310 union ccb *ccb; 311 312 ccb = (union ccb *)malloc(sizeof(*ccb), M_TEMP, 313 M_NOWAIT | M_ZERO); 314 if (ccb == NULL) { 315 printf("%s: unable to malloc CCB!\n", __func__); 316 return; 317 } 318 xpt_setup_ccb(&ccb->ccb_h, path, CAM_PRIORITY_NONE); 319 320 ccb->ccb_h.func_code = XPT_SET_SIM_KNOB; 321 ccb->knob.xport_specific.valid = KNOB_VALID_ROLE; 322 ccb->knob.xport_specific.fc.role = KNOB_ROLE_INITIATOR; 323 324 xpt_action(ccb); 325 326 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != 327 CAM_REQ_CMP) { 328 printf("%s: SIM %s%d (path id %d) initiator " 329 "enable failed with status %#x\n", 330 __func__, cpi->dev_name, 331 cpi->unit_number, cpi->ccb_h.path_id, 332 ccb->ccb_h.status); 333 } else { 334 printf("%s: SIM %s%d (path id %d) initiator " 335 "enable succeeded\n", 336 __func__, cpi->dev_name, 337 cpi->unit_number, cpi->ccb_h.path_id); 338 } 339 340 free(ccb, M_TEMP); 341 342 break; 343 } else { 344 ctlfe_num_targets++; 345 } 346 347 printf("%s: ctlfe_num_targets = %d\n", __func__, 348 ctlfe_num_targets); 349#endif /* CTLFE_INIT_ENABLE */ 350 351 /* 352 * We're in an interrupt context here, so we have to 353 * use M_NOWAIT. Of course this means trouble if we 354 * can't allocate memory. 355 */ 356 softc = malloc(sizeof(*softc), M_CTLFE, M_NOWAIT | M_ZERO); 357 if (softc == NULL) { 358 printf("%s: unable to malloc %zd bytes for softc\n", 359 __func__, sizeof(*softc)); 360 return; 361 } 362 363 softc->path_id = cpi->ccb_h.path_id; 364 softc->target_id = cpi->initiator_id; 365 softc->sim = xpt_path_sim(path); 366 softc->hba_misc = cpi->hba_misc; 367 if (cpi->maxio != 0) 368 softc->maxio = cpi->maxio; 369 else 370 softc->maxio = DFLTPHYS; 371 mtx_init(&softc->lun_softc_mtx, "LUN softc mtx", NULL, MTX_DEF); 372 STAILQ_INIT(&softc->lun_softc_list); 373 374 port = &softc->port; 375 port->frontend = &ctlfe_frontend; 376 377 /* 378 * XXX KDM should we be more accurate here ? 379 */ 380 if (cpi->transport == XPORT_FC) 381 port->port_type = CTL_PORT_FC; 382 else if (cpi->transport == XPORT_SAS) 383 port->port_type = CTL_PORT_SAS; 384 else 385 port->port_type = CTL_PORT_SCSI; 386 387 /* XXX KDM what should the real number be here? */ 388 port->num_requested_ctl_io = 4096; 389 snprintf(softc->port_name, sizeof(softc->port_name), 390 "%s%d", cpi->dev_name, cpi->unit_number); 391 /* 392 * XXX KDM it would be nice to allocate storage in the 393 * frontend structure itself. 394 */ 395 port->port_name = softc->port_name; 396 port->physical_port = cpi->bus_id; 397 port->virtual_port = 0; 398 port->port_online = ctlfe_online; 399 port->port_offline = ctlfe_offline; 400 port->onoff_arg = softc; 401 port->lun_enable = ctlfe_lun_enable; 402 port->lun_disable = ctlfe_lun_disable; 403 port->targ_lun_arg = softc; 404 port->fe_datamove = ctlfe_datamove; 405 port->fe_done = ctlfe_done; 406 /* 407 * XXX KDM the path inquiry doesn't give us the maximum 408 * number of targets supported. 409 */ 410 port->max_targets = cpi->max_target; 411 port->max_target_id = cpi->max_target; 412 port->targ_port = -1; 413 414 /* 415 * XXX KDM need to figure out whether we're the master or 416 * slave. 417 */ 418#ifdef CTLFEDEBUG 419 printf("%s: calling ctl_port_register() for %s%d\n", 420 __func__, cpi->dev_name, cpi->unit_number); 421#endif 422 retval = ctl_port_register(port); 423 if (retval != 0) { 424 printf("%s: ctl_port_register() failed with " 425 "error %d!\n", __func__, retval); 426 mtx_destroy(&softc->lun_softc_mtx); 427 free(softc, M_CTLFE); 428 break; 429 } else { 430 mtx_lock(&ctlfe_list_mtx); 431 STAILQ_INSERT_TAIL(&ctlfe_softc_list, softc, links); 432 mtx_unlock(&ctlfe_list_mtx); 433 } 434 435 break; 436 } 437 case AC_PATH_DEREGISTERED: { 438 439 if (softc != NULL) { 440 /* 441 * XXX KDM are we certain at this point that there 442 * are no outstanding commands for this frontend? 443 */ 444 mtx_lock(&ctlfe_list_mtx); 445 STAILQ_REMOVE(&ctlfe_softc_list, softc, ctlfe_softc, 446 links); 447 mtx_unlock(&ctlfe_list_mtx); 448 ctl_port_deregister(&softc->port); 449 mtx_destroy(&softc->lun_softc_mtx); 450 free(softc, M_CTLFE); 451 } 452 break; 453 } 454 case AC_CONTRACT: { 455 struct ac_contract *ac; 456 457 ac = (struct ac_contract *)arg; 458 459 switch (ac->contract_number) { 460 case AC_CONTRACT_DEV_CHG: { 461 struct ac_device_changed *dev_chg; 462 int retval; 463 464 dev_chg = (struct ac_device_changed *)ac->contract_data; 465 466 printf("%s: WWPN %#jx port 0x%06x path %u target %u %s\n", 467 __func__, dev_chg->wwpn, dev_chg->port, 468 xpt_path_path_id(path), dev_chg->target, 469 (dev_chg->arrived == 0) ? "left" : "arrived"); 470 471 if (softc == NULL) { 472 printf("%s: CTL port for CAM path %u not " 473 "found!\n", __func__, 474 xpt_path_path_id(path)); 475 break; 476 } 477 if (dev_chg->arrived != 0) { 478 retval = ctl_add_initiator(&softc->port, 479 dev_chg->target, dev_chg->wwpn, NULL); 480 } else { 481 retval = ctl_remove_initiator(&softc->port, 482 dev_chg->target); 483 } 484 485 if (retval < 0) { 486 printf("%s: could not %s port %d iid %u " 487 "WWPN %#jx!\n", __func__, 488 (dev_chg->arrived != 0) ? "add" : 489 "remove", softc->port.targ_port, 490 dev_chg->target, 491 (uintmax_t)dev_chg->wwpn); 492 } 493 break; 494 } 495 default: 496 printf("%s: unsupported contract number %ju\n", 497 __func__, (uintmax_t)ac->contract_number); 498 break; 499 } 500 break; 501 } 502 default: 503 break; 504 } 505} 506 507static cam_status 508ctlferegister(struct cam_periph *periph, void *arg) 509{ 510 struct ctlfe_softc *bus_softc; 511 struct ctlfe_lun_softc *softc; 512 union ccb en_lun_ccb; 513 cam_status status; 514 int i; 515 516 softc = (struct ctlfe_lun_softc *)arg; 517 bus_softc = softc->parent_softc; 518 519 TAILQ_INIT(&softc->work_queue); 520 softc->periph = periph; 521 periph->softc = softc; 522 523 xpt_setup_ccb(&en_lun_ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); 524 en_lun_ccb.ccb_h.func_code = XPT_EN_LUN; 525 en_lun_ccb.cel.grp6_len = 0; 526 en_lun_ccb.cel.grp7_len = 0; 527 en_lun_ccb.cel.enable = 1; 528 xpt_action(&en_lun_ccb); 529 status = (en_lun_ccb.ccb_h.status & CAM_STATUS_MASK); 530 if (status != CAM_REQ_CMP) { 531 xpt_print(periph->path, "%s: Enable LUN failed, status 0x%x\n", 532 __func__, en_lun_ccb.ccb_h.status); 533 return (status); 534 } 535 536 status = CAM_REQ_CMP; 537 538 for (i = 0; i < CTLFE_ATIO_PER_LUN; i++) { 539 union ccb *new_ccb; 540 union ctl_io *new_io; 541 struct ctlfe_cmd_info *cmd_info; 542 543 new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE, 544 M_ZERO|M_NOWAIT); 545 if (new_ccb == NULL) { 546 status = CAM_RESRC_UNAVAIL; 547 break; 548 } 549 new_io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref); 550 if (new_io == NULL) { 551 free(new_ccb, M_CTLFE); 552 status = CAM_RESRC_UNAVAIL; 553 break; 554 } 555 cmd_info = malloc(sizeof(*cmd_info), M_CTLFE, 556 M_ZERO | M_NOWAIT); 557 if (cmd_info == NULL) { 558 ctl_free_io(new_io); 559 free(new_ccb, M_CTLFE); 560 status = CAM_RESRC_UNAVAIL; 561 break; 562 } 563 PRIV_INFO(new_io) = cmd_info; 564 softc->atios_alloced++; 565 new_ccb->ccb_h.io_ptr = new_io; 566 567 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1); 568 new_ccb->ccb_h.func_code = XPT_ACCEPT_TARGET_IO; 569 new_ccb->ccb_h.cbfcnp = ctlfedone; 570 new_ccb->ccb_h.flags |= CAM_UNLOCKED; 571 xpt_action(new_ccb); 572 status = new_ccb->ccb_h.status; 573 if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 574 free(cmd_info, M_CTLFE); 575 ctl_free_io(new_io); 576 free(new_ccb, M_CTLFE); 577 break; 578 } 579 } 580 581 status = cam_periph_acquire(periph); 582 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 583 xpt_print(periph->path, "%s: could not acquire reference " 584 "count, status = %#x\n", __func__, status); 585 return (status); 586 } 587 588 if (i == 0) { 589 xpt_print(periph->path, "%s: could not allocate ATIO CCBs, " 590 "status 0x%x\n", __func__, status); 591 return (CAM_REQ_CMP_ERR); 592 } 593 594 for (i = 0; i < CTLFE_IN_PER_LUN; i++) { 595 union ccb *new_ccb; 596 union ctl_io *new_io; 597 598 new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE, 599 M_ZERO|M_NOWAIT); 600 if (new_ccb == NULL) { 601 status = CAM_RESRC_UNAVAIL; 602 break; 603 } 604 new_io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref); 605 if (new_io == NULL) { 606 free(new_ccb, M_CTLFE); 607 status = CAM_RESRC_UNAVAIL; 608 break; 609 } 610 softc->inots_alloced++; 611 new_ccb->ccb_h.io_ptr = new_io; 612 613 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1); 614 new_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY; 615 new_ccb->ccb_h.cbfcnp = ctlfedone; 616 new_ccb->ccb_h.flags |= CAM_UNLOCKED; 617 xpt_action(new_ccb); 618 status = new_ccb->ccb_h.status; 619 if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 620 /* 621 * Note that we don't free the CCB here. If the 622 * status is not CAM_REQ_INPROG, then we're 623 * probably talking to a SIM that says it is 624 * target-capable but doesn't support the 625 * XPT_IMMEDIATE_NOTIFY CCB. i.e. it supports the 626 * older API. In that case, it'll call xpt_done() 627 * on the CCB, and we need to free it in our done 628 * routine as a result. 629 */ 630 break; 631 } 632 } 633 if ((i == 0) 634 || (status != CAM_REQ_INPROG)) { 635 xpt_print(periph->path, "%s: could not allocate immediate " 636 "notify CCBs, status 0x%x\n", __func__, status); 637 return (CAM_REQ_CMP_ERR); 638 } 639 mtx_lock(&bus_softc->lun_softc_mtx); 640 STAILQ_INSERT_TAIL(&bus_softc->lun_softc_list, softc, links); 641 mtx_unlock(&bus_softc->lun_softc_mtx); 642 return (CAM_REQ_CMP); 643} 644 645static void 646ctlfeoninvalidate(struct cam_periph *periph) 647{ 648 union ccb en_lun_ccb; 649 cam_status status; 650 struct ctlfe_softc *bus_softc; 651 struct ctlfe_lun_softc *softc; 652 653 softc = (struct ctlfe_lun_softc *)periph->softc; 654 655 xpt_setup_ccb(&en_lun_ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); 656 en_lun_ccb.ccb_h.func_code = XPT_EN_LUN; 657 en_lun_ccb.cel.grp6_len = 0; 658 en_lun_ccb.cel.grp7_len = 0; 659 en_lun_ccb.cel.enable = 0; 660 xpt_action(&en_lun_ccb); 661 status = (en_lun_ccb.ccb_h.status & CAM_STATUS_MASK); 662 if (status != CAM_REQ_CMP) { 663 xpt_print(periph->path, "%s: Disable LUN failed, status 0x%x\n", 664 __func__, en_lun_ccb.ccb_h.status); 665 /* 666 * XXX KDM what do we do now? 667 */ 668 } 669 670 bus_softc = softc->parent_softc; 671 mtx_lock(&bus_softc->lun_softc_mtx); 672 STAILQ_REMOVE(&bus_softc->lun_softc_list, softc, ctlfe_lun_softc, links); 673 mtx_unlock(&bus_softc->lun_softc_mtx); 674} 675 676static void 677ctlfecleanup(struct cam_periph *periph) 678{ 679 struct ctlfe_lun_softc *softc; 680 681 softc = (struct ctlfe_lun_softc *)periph->softc; 682 683 KASSERT(softc->ctios_sent == 0, ("%s: ctios_sent %d != 0", 684 __func__, softc->ctios_sent)); 685 KASSERT(softc->refcount == 0, ("%s: refcount %d != 0", 686 __func__, softc->refcount)); 687 KASSERT(softc->atios_alloced == 0, ("%s: atios_alloced %d != 0", 688 __func__, softc->atios_alloced)); 689 KASSERT(softc->inots_alloced == 0, ("%s: inots_alloced %d != 0", 690 __func__, softc->inots_alloced)); 691 692 free(softc, M_CTLFE); 693} 694 695static void 696ctlfedata(struct ctlfe_lun_softc *softc, union ctl_io *io, 697 ccb_flags *flags, uint8_t **data_ptr, uint32_t *dxfer_len, 698 u_int16_t *sglist_cnt) 699{ 700 struct ctlfe_softc *bus_softc; 701 struct ctlfe_cmd_info *cmd_info; 702 struct ctl_sg_entry *ctl_sglist; 703 bus_dma_segment_t *cam_sglist; 704 size_t off; 705 int i, idx; 706 707 cmd_info = PRIV_INFO(io); 708 bus_softc = softc->parent_softc; 709 710 /* 711 * Set the direction, relative to the initiator. 712 */ 713 *flags &= ~CAM_DIR_MASK; 714 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 715 *flags |= CAM_DIR_IN; 716 else 717 *flags |= CAM_DIR_OUT; 718 719 *flags &= ~CAM_DATA_MASK; 720 idx = cmd_info->cur_transfer_index; 721 off = cmd_info->cur_transfer_off; 722 cmd_info->flags &= ~CTLFE_CMD_PIECEWISE; 723 if (io->scsiio.kern_sg_entries == 0) { /* No S/G list. */ 724 725 /* One time shift for SRR offset. */ 726 off += io->scsiio.ext_data_filled; 727 io->scsiio.ext_data_filled = 0; 728 729 *data_ptr = io->scsiio.kern_data_ptr + off; 730 if (io->scsiio.kern_data_len - off <= bus_softc->maxio) { 731 *dxfer_len = io->scsiio.kern_data_len - off; 732 } else { 733 *dxfer_len = bus_softc->maxio; 734 cmd_info->cur_transfer_off += bus_softc->maxio; 735 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 736 } 737 *sglist_cnt = 0; 738 739 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 740 *flags |= CAM_DATA_PADDR; 741 else 742 *flags |= CAM_DATA_VADDR; 743 } else { /* S/G list with physical or virtual pointers. */ 744 ctl_sglist = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 745 746 /* One time shift for SRR offset. */ 747 while (io->scsiio.ext_data_filled >= ctl_sglist[idx].len - off) { 748 io->scsiio.ext_data_filled -= ctl_sglist[idx].len - off; 749 idx++; 750 off = 0; 751 } 752 off += io->scsiio.ext_data_filled; 753 io->scsiio.ext_data_filled = 0; 754 755 cam_sglist = cmd_info->cam_sglist; 756 *dxfer_len = 0; 757 for (i = 0; i < io->scsiio.kern_sg_entries - idx; i++) { 758 cam_sglist[i].ds_addr = (bus_addr_t)ctl_sglist[i + idx].addr + off; 759 if (ctl_sglist[i + idx].len - off <= bus_softc->maxio - *dxfer_len) { 760 cam_sglist[i].ds_len = ctl_sglist[idx + i].len - off; 761 *dxfer_len += cam_sglist[i].ds_len; 762 } else { 763 cam_sglist[i].ds_len = bus_softc->maxio - *dxfer_len; 764 cmd_info->cur_transfer_index = idx + i; 765 cmd_info->cur_transfer_off = cam_sglist[i].ds_len + off; 766 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 767 *dxfer_len += cam_sglist[i].ds_len; 768 if (ctl_sglist[i].len != 0) 769 i++; 770 break; 771 } 772 if (i == (CTLFE_MAX_SEGS - 1) && 773 idx + i < (io->scsiio.kern_sg_entries - 1)) { 774 cmd_info->cur_transfer_index = idx + i + 1; 775 cmd_info->cur_transfer_off = 0; 776 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 777 i++; 778 break; 779 } 780 off = 0; 781 } 782 *sglist_cnt = i; 783 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 784 *flags |= CAM_DATA_SG_PADDR; 785 else 786 *flags |= CAM_DATA_SG; 787 *data_ptr = (uint8_t *)cam_sglist; 788 } 789} 790 791static void 792ctlfestart(struct cam_periph *periph, union ccb *start_ccb) 793{ 794 struct ctlfe_lun_softc *softc; 795 struct ctlfe_cmd_info *cmd_info; 796 struct ccb_hdr *ccb_h; 797 struct ccb_accept_tio *atio; 798 struct ccb_scsiio *csio; 799 uint8_t *data_ptr; 800 uint32_t dxfer_len; 801 ccb_flags flags; 802 union ctl_io *io; 803 uint8_t scsi_status; 804 805 softc = (struct ctlfe_lun_softc *)periph->softc; 806 807next: 808 ccb_h = TAILQ_FIRST(&softc->work_queue); 809 if (ccb_h == NULL) { 810 xpt_release_ccb(start_ccb); 811 return; 812 } 813 814 /* Take the ATIO off the work queue */ 815 TAILQ_REMOVE(&softc->work_queue, ccb_h, periph_links.tqe); 816 atio = (struct ccb_accept_tio *)ccb_h; 817 io = (union ctl_io *)ccb_h->io_ptr; 818 csio = &start_ccb->csio; 819 820 flags = atio->ccb_h.flags & 821 (CAM_DIS_DISCONNECT|CAM_TAG_ACTION_VALID|CAM_DIR_MASK); 822 cmd_info = PRIV_INFO(io); 823 cmd_info->cur_transfer_index = 0; 824 cmd_info->cur_transfer_off = 0; 825 cmd_info->flags = 0; 826 827 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) { 828 /* 829 * Datamove call, we need to setup the S/G list. 830 */ 831 ctlfedata(softc, io, &flags, &data_ptr, &dxfer_len, 832 &csio->sglist_cnt); 833 } else { 834 /* 835 * We're done, send status back. 836 */ 837 if ((io->io_hdr.flags & CTL_FLAG_ABORT) && 838 (io->io_hdr.flags & CTL_FLAG_ABORT_STATUS) == 0) { 839 io->io_hdr.flags &= ~CTL_FLAG_STATUS_QUEUED; 840 841 /* Tell the SIM that we've aborted this ATIO */ 842#ifdef CTLFEDEBUG 843 printf("%s: tag %04x abort\n", __func__, atio->tag_id); 844#endif 845 KASSERT(atio->ccb_h.func_code == XPT_ACCEPT_TARGET_IO, 846 ("func_code %#x is not ATIO", atio->ccb_h.func_code)); 847 start_ccb->ccb_h.func_code = XPT_ABORT; 848 start_ccb->cab.abort_ccb = (union ccb *)atio; 849 xpt_action(start_ccb); 850 851 ctlfe_requeue_ccb(periph, (union ccb *)atio, 852 /* unlock */0); 853 854 /* XPT_ABORT is not queued, so we can take next I/O. */ 855 goto next; 856 } 857 data_ptr = NULL; 858 dxfer_len = 0; 859 csio->sglist_cnt = 0; 860 } 861 scsi_status = 0; 862 if ((io->io_hdr.flags & CTL_FLAG_STATUS_QUEUED) && 863 (cmd_info->flags & CTLFE_CMD_PIECEWISE) == 0 && 864 ((io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) == 0 || 865 io->io_hdr.status == CTL_SUCCESS)) { 866 flags |= CAM_SEND_STATUS; 867 scsi_status = io->scsiio.scsi_status; 868 csio->sense_len = io->scsiio.sense_len; 869#ifdef CTLFEDEBUG 870 printf("%s: tag %04x status %x\n", __func__, 871 atio->tag_id, io->io_hdr.status); 872#endif 873 if (csio->sense_len != 0) { 874 csio->sense_data = io->scsiio.sense_data; 875 flags |= CAM_SEND_SENSE; 876 } 877 } 878 879#ifdef CTLFEDEBUG 880 printf("%s: %s: tag %04x flags %x ptr %p len %u\n", __func__, 881 (flags & CAM_SEND_STATUS) ? "done" : "datamove", 882 atio->tag_id, flags, data_ptr, dxfer_len); 883#endif 884 885 /* 886 * Valid combinations: 887 * - CAM_SEND_STATUS, CAM_DATA_SG = 0, dxfer_len = 0, 888 * sglist_cnt = 0 889 * - CAM_SEND_STATUS = 0, CAM_DATA_SG = 0, dxfer_len != 0, 890 * sglist_cnt = 0 891 * - CAM_SEND_STATUS = 0, CAM_DATA_SG, dxfer_len != 0, 892 * sglist_cnt != 0 893 */ 894#ifdef CTLFEDEBUG 895 if (((flags & CAM_SEND_STATUS) 896 && (((flags & CAM_DATA_SG) != 0) 897 || (dxfer_len != 0) 898 || (csio->sglist_cnt != 0))) 899 || (((flags & CAM_SEND_STATUS) == 0) 900 && (dxfer_len == 0)) 901 || ((flags & CAM_DATA_SG) 902 && (csio->sglist_cnt == 0)) 903 || (((flags & CAM_DATA_SG) == 0) 904 && (csio->sglist_cnt != 0))) { 905 printf("%s: tag %04x cdb %02x flags %#x dxfer_len " 906 "%d sg %u\n", __func__, atio->tag_id, 907 atio_cdb_ptr(atio)[0], flags, dxfer_len, 908 csio->sglist_cnt); 909 printf("%s: tag %04x io status %#x\n", __func__, 910 atio->tag_id, io->io_hdr.status); 911 } 912#endif 913 cam_fill_ctio(csio, 914 /*retries*/ 2, 915 ctlfedone, 916 flags, 917 (flags & CAM_TAG_ACTION_VALID) ? MSG_SIMPLE_Q_TAG : 0, 918 atio->tag_id, 919 atio->init_id, 920 scsi_status, 921 /*data_ptr*/ data_ptr, 922 /*dxfer_len*/ dxfer_len, 923 /*timeout*/ 5 * 1000); 924 start_ccb->ccb_h.flags |= CAM_UNLOCKED; 925 start_ccb->ccb_h.ccb_atio = atio; 926 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 927 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 928 io->io_hdr.flags &= ~(CTL_FLAG_DMA_QUEUED | CTL_FLAG_STATUS_QUEUED); 929 930 softc->ctios_sent++; 931 softc->refcount++; 932 cam_periph_unlock(periph); 933 xpt_action(start_ccb); 934 cam_periph_lock(periph); 935 softc->refcount--; 936 937 /* 938 * If we still have work to do, ask for another CCB. 939 */ 940 if (!TAILQ_EMPTY(&softc->work_queue)) 941 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 942} 943 944static void 945ctlfe_drain(void *context, int pending) 946{ 947 struct cam_periph *periph = context; 948 struct ctlfe_lun_softc *softc = periph->softc; 949 950 cam_periph_lock(periph); 951 while (softc->refcount != 0) { 952 cam_periph_sleep(periph, &softc->refcount, PRIBIO, 953 "ctlfe_drain", 1); 954 } 955 cam_periph_unlock(periph); 956 cam_periph_release(periph); 957} 958 959static void 960ctlfe_free_ccb(struct cam_periph *periph, union ccb *ccb) 961{ 962 struct ctlfe_lun_softc *softc; 963 union ctl_io *io; 964 struct ctlfe_cmd_info *cmd_info; 965 966 softc = (struct ctlfe_lun_softc *)periph->softc; 967 io = ccb->ccb_h.io_ptr; 968 969 switch (ccb->ccb_h.func_code) { 970 case XPT_ACCEPT_TARGET_IO: 971 softc->atios_alloced--; 972 cmd_info = PRIV_INFO(io); 973 free(cmd_info, M_CTLFE); 974 break; 975 case XPT_IMMEDIATE_NOTIFY: 976 case XPT_NOTIFY_ACKNOWLEDGE: 977 softc->inots_alloced--; 978 break; 979 default: 980 break; 981 } 982 983 ctl_free_io(io); 984 free(ccb, M_CTLFE); 985 986 KASSERT(softc->atios_alloced >= 0, ("%s: atios_alloced %d < 0", 987 __func__, softc->atios_alloced)); 988 KASSERT(softc->inots_alloced >= 0, ("%s: inots_alloced %d < 0", 989 __func__, softc->inots_alloced)); 990 991 /* 992 * If we have received all of our CCBs, we can release our 993 * reference on the peripheral driver. It will probably go away 994 * now. 995 */ 996 if (softc->atios_alloced == 0 && softc->inots_alloced == 0) { 997 if (softc->refcount == 0) { 998 cam_periph_release_locked(periph); 999 } else { 1000 TASK_INIT(&softc->refdrain_task, 0, ctlfe_drain, periph); 1001 taskqueue_enqueue(taskqueue_thread, 1002 &softc->refdrain_task); 1003 } 1004 } 1005} 1006 1007/* 1008 * Send the ATIO/INOT back to the SIM, or free it if periph was invalidated. 1009 */ 1010static void 1011ctlfe_requeue_ccb(struct cam_periph *periph, union ccb *ccb, int unlock) 1012{ 1013 struct ctlfe_lun_softc *softc; 1014 struct mtx *mtx; 1015 1016 if (periph->flags & CAM_PERIPH_INVALID) { 1017 mtx = cam_periph_mtx(periph); 1018 ctlfe_free_ccb(periph, ccb); 1019 if (unlock) 1020 mtx_unlock(mtx); 1021 return; 1022 } 1023 if (unlock) 1024 cam_periph_unlock(periph); 1025 1026 /* 1027 * For a wildcard attachment, commands can come in with a specific 1028 * target/lun. Reset the target and LUN fields back to the wildcard 1029 * values before we send them back down to the SIM. 1030 */ 1031 softc = (struct ctlfe_lun_softc *)periph->softc; 1032 if (softc->flags & CTLFE_LUN_WILDCARD) { 1033 ccb->ccb_h.target_id = CAM_TARGET_WILDCARD; 1034 ccb->ccb_h.target_lun = CAM_LUN_WILDCARD; 1035 } 1036 1037 xpt_action(ccb); 1038} 1039 1040static int 1041ctlfe_adjust_cdb(struct ccb_accept_tio *atio, uint32_t offset) 1042{ 1043 uint64_t lba; 1044 uint32_t num_blocks, nbc; 1045 uint8_t *cmdbyt = atio_cdb_ptr(atio); 1046 1047 nbc = offset >> 9; /* ASSUMING 512 BYTE BLOCKS */ 1048 1049 switch (cmdbyt[0]) { 1050 case READ_6: 1051 case WRITE_6: 1052 { 1053 struct scsi_rw_6 *cdb = (struct scsi_rw_6 *)cmdbyt; 1054 lba = scsi_3btoul(cdb->addr); 1055 lba &= 0x1fffff; 1056 num_blocks = cdb->length; 1057 if (num_blocks == 0) 1058 num_blocks = 256; 1059 lba += nbc; 1060 num_blocks -= nbc; 1061 scsi_ulto3b(lba, cdb->addr); 1062 cdb->length = num_blocks; 1063 break; 1064 } 1065 case READ_10: 1066 case WRITE_10: 1067 { 1068 struct scsi_rw_10 *cdb = (struct scsi_rw_10 *)cmdbyt; 1069 lba = scsi_4btoul(cdb->addr); 1070 num_blocks = scsi_2btoul(cdb->length); 1071 lba += nbc; 1072 num_blocks -= nbc; 1073 scsi_ulto4b(lba, cdb->addr); 1074 scsi_ulto2b(num_blocks, cdb->length); 1075 break; 1076 } 1077 case READ_12: 1078 case WRITE_12: 1079 { 1080 struct scsi_rw_12 *cdb = (struct scsi_rw_12 *)cmdbyt; 1081 lba = scsi_4btoul(cdb->addr); 1082 num_blocks = scsi_4btoul(cdb->length); 1083 lba += nbc; 1084 num_blocks -= nbc; 1085 scsi_ulto4b(lba, cdb->addr); 1086 scsi_ulto4b(num_blocks, cdb->length); 1087 break; 1088 } 1089 case READ_16: 1090 case WRITE_16: 1091 { 1092 struct scsi_rw_16 *cdb = (struct scsi_rw_16 *)cmdbyt; 1093 lba = scsi_8btou64(cdb->addr); 1094 num_blocks = scsi_4btoul(cdb->length); 1095 lba += nbc; 1096 num_blocks -= nbc; 1097 scsi_u64to8b(lba, cdb->addr); 1098 scsi_ulto4b(num_blocks, cdb->length); 1099 break; 1100 } 1101 default: 1102 return -1; 1103 } 1104 return (0); 1105} 1106 1107static void 1108ctlfedone(struct cam_periph *periph, union ccb *done_ccb) 1109{ 1110 struct ctlfe_lun_softc *softc; 1111 struct ctlfe_softc *bus_softc; 1112 struct ctlfe_cmd_info *cmd_info; 1113 struct ccb_accept_tio *atio = NULL; 1114 union ctl_io *io = NULL; 1115 struct mtx *mtx; 1116 cam_status status; 1117 1118 KASSERT((done_ccb->ccb_h.flags & CAM_UNLOCKED) != 0, 1119 ("CCB in ctlfedone() without CAM_UNLOCKED flag")); 1120#ifdef CTLFE_DEBUG 1121 printf("%s: entered, func_code = %#x\n", __func__, 1122 done_ccb->ccb_h.func_code); 1123#endif 1124 1125 /* 1126 * At this point CTL has no known use case for device queue freezes. 1127 * In case some SIM think different -- drop its freeze right here. 1128 */ 1129 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1130 cam_release_devq(periph->path, 1131 /*relsim_flags*/0, 1132 /*reduction*/0, 1133 /*timeout*/0, 1134 /*getcount_only*/0); 1135 done_ccb->ccb_h.status &= ~CAM_DEV_QFRZN; 1136 } 1137 1138 softc = (struct ctlfe_lun_softc *)periph->softc; 1139 bus_softc = softc->parent_softc; 1140 mtx = cam_periph_mtx(periph); 1141 mtx_lock(mtx); 1142 1143 switch (done_ccb->ccb_h.func_code) { 1144 case XPT_ACCEPT_TARGET_IO: { 1145 1146 atio = &done_ccb->atio; 1147 status = atio->ccb_h.status & CAM_STATUS_MASK; 1148 if (status != CAM_CDB_RECVD) { 1149 ctlfe_free_ccb(periph, done_ccb); 1150 goto out; 1151 } 1152 1153 resubmit: 1154 /* 1155 * Allocate a ctl_io, pass it to CTL, and wait for the 1156 * datamove or done. 1157 */ 1158 mtx_unlock(mtx); 1159 io = done_ccb->ccb_h.io_ptr; 1160 cmd_info = PRIV_INFO(io); 1161 ctl_zero_io(io); 1162 1163 /* Save pointers on both sides */ 1164 PRIV_CCB(io) = done_ccb; 1165 PRIV_INFO(io) = cmd_info; 1166 done_ccb->ccb_h.io_ptr = io; 1167 1168 /* 1169 * Only SCSI I/O comes down this path, resets, etc. come 1170 * down the immediate notify path below. 1171 */ 1172 io->io_hdr.io_type = CTL_IO_SCSI; 1173 io->io_hdr.nexus.initid = atio->init_id; 1174 io->io_hdr.nexus.targ_port = bus_softc->port.targ_port; 1175 if (bus_softc->hba_misc & PIM_EXTLUNS) { 1176 io->io_hdr.nexus.targ_lun = ctl_decode_lun( 1177 CAM_EXTLUN_BYTE_SWIZZLE(atio->ccb_h.target_lun)); 1178 } else { 1179 io->io_hdr.nexus.targ_lun = atio->ccb_h.target_lun; 1180 } 1181 io->scsiio.tag_num = atio->tag_id; 1182 switch (atio->tag_action) { 1183 case CAM_TAG_ACTION_NONE: 1184 io->scsiio.tag_type = CTL_TAG_UNTAGGED; 1185 break; 1186 case MSG_SIMPLE_TASK: 1187 io->scsiio.tag_type = CTL_TAG_SIMPLE; 1188 break; 1189 case MSG_HEAD_OF_QUEUE_TASK: 1190 io->scsiio.tag_type = CTL_TAG_HEAD_OF_QUEUE; 1191 break; 1192 case MSG_ORDERED_TASK: 1193 io->scsiio.tag_type = CTL_TAG_ORDERED; 1194 break; 1195 case MSG_ACA_TASK: 1196 io->scsiio.tag_type = CTL_TAG_ACA; 1197 break; 1198 default: 1199 io->scsiio.tag_type = CTL_TAG_UNTAGGED; 1200 printf("%s: unhandled tag type %#x!!\n", __func__, 1201 atio->tag_action); 1202 break; 1203 } 1204 if (atio->cdb_len > sizeof(io->scsiio.cdb)) { 1205 printf("%s: WARNING: CDB len %d > ctl_io space %zd\n", 1206 __func__, atio->cdb_len, sizeof(io->scsiio.cdb)); 1207 } 1208 io->scsiio.cdb_len = min(atio->cdb_len, sizeof(io->scsiio.cdb)); 1209 bcopy(atio_cdb_ptr(atio), io->scsiio.cdb, io->scsiio.cdb_len); 1210 1211#ifdef CTLFEDEBUG 1212 printf("%s: %u:%u:%u: tag %04x CDB %02x\n", __func__, 1213 io->io_hdr.nexus.initid, 1214 io->io_hdr.nexus.targ_port, 1215 io->io_hdr.nexus.targ_lun, 1216 io->scsiio.tag_num, io->scsiio.cdb[0]); 1217#endif 1218 1219 ctl_queue(io); 1220 return; 1221 } 1222 case XPT_CONT_TARGET_IO: { 1223 int srr = 0; 1224 uint32_t srr_off = 0; 1225 1226 atio = (struct ccb_accept_tio *)done_ccb->ccb_h.ccb_atio; 1227 io = (union ctl_io *)atio->ccb_h.io_ptr; 1228 1229 softc->ctios_sent--; 1230#ifdef CTLFEDEBUG 1231 printf("%s: got XPT_CONT_TARGET_IO tag %#x flags %#x\n", 1232 __func__, atio->tag_id, done_ccb->ccb_h.flags); 1233#endif 1234 /* 1235 * Handle SRR case were the data pointer is pushed back hack 1236 */ 1237 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_MESSAGE_RECV 1238 && done_ccb->csio.msg_ptr != NULL 1239 && done_ccb->csio.msg_ptr[0] == MSG_EXTENDED 1240 && done_ccb->csio.msg_ptr[1] == 5 1241 && done_ccb->csio.msg_ptr[2] == 0) { 1242 srr = 1; 1243 srr_off = 1244 (done_ccb->csio.msg_ptr[3] << 24) 1245 | (done_ccb->csio.msg_ptr[4] << 16) 1246 | (done_ccb->csio.msg_ptr[5] << 8) 1247 | (done_ccb->csio.msg_ptr[6]); 1248 } 1249 1250 /* 1251 * If we have an SRR and we're still sending data, we 1252 * should be able to adjust offsets and cycle again. 1253 * It is possible only if offset is from this datamove. 1254 */ 1255 if (srr && (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) && 1256 srr_off >= io->scsiio.kern_rel_offset && 1257 srr_off < io->scsiio.kern_rel_offset + 1258 io->scsiio.kern_data_len) { 1259 io->scsiio.kern_data_resid = 1260 io->scsiio.kern_rel_offset + 1261 io->scsiio.kern_data_len - srr_off; 1262 io->scsiio.ext_data_filled = srr_off; 1263 io->scsiio.io_hdr.status = CTL_STATUS_NONE; 1264 io->io_hdr.flags |= CTL_FLAG_DMA_QUEUED; 1265 xpt_release_ccb(done_ccb); 1266 TAILQ_INSERT_HEAD(&softc->work_queue, &atio->ccb_h, 1267 periph_links.tqe); 1268 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1269 break; 1270 } 1271 1272 /* 1273 * If status was being sent, the back end data is now history. 1274 * Hack it up and resubmit a new command with the CDB adjusted. 1275 * If the SIM does the right thing, all of the resid math 1276 * should work. 1277 */ 1278 if (srr && (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) { 1279 xpt_release_ccb(done_ccb); 1280 if (ctlfe_adjust_cdb(atio, srr_off) == 0) { 1281 done_ccb = (union ccb *)atio; 1282 goto resubmit; 1283 } 1284 /* 1285 * Fall through to doom.... 1286 */ 1287 } 1288 1289 if ((done_ccb->ccb_h.flags & CAM_SEND_STATUS) && 1290 (done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1291 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1292 1293 /* 1294 * If we were sending status back to the initiator, free up 1295 * resources. If we were doing a datamove, call the 1296 * datamove done routine. 1297 */ 1298 if ((io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) { 1299 /* Abort ATIO if CTIO sending status has failed. */ 1300 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != 1301 CAM_REQ_CMP) { 1302 done_ccb->ccb_h.func_code = XPT_ABORT; 1303 done_ccb->cab.abort_ccb = (union ccb *)atio; 1304 xpt_action(done_ccb); 1305 } 1306 1307 xpt_release_ccb(done_ccb); 1308 ctlfe_requeue_ccb(periph, (union ccb *)atio, 1309 /* unlock */1); 1310 return; 1311 } else { 1312 struct ctlfe_cmd_info *cmd_info; 1313 struct ccb_scsiio *csio; 1314 1315 csio = &done_ccb->csio; 1316 cmd_info = PRIV_INFO(io); 1317 1318 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1319 1320 /* 1321 * Translate CAM status to CTL status. Success 1322 * does not change the overall, ctl_io status. In 1323 * that case we just set port_status to 0. If we 1324 * have a failure, though, set a data phase error 1325 * for the overall ctl_io. 1326 */ 1327 switch (done_ccb->ccb_h.status & CAM_STATUS_MASK) { 1328 case CAM_REQ_CMP: 1329 io->scsiio.kern_data_resid -= csio->dxfer_len; 1330 io->io_hdr.port_status = 0; 1331 break; 1332 default: 1333 /* 1334 * XXX KDM we probably need to figure out a 1335 * standard set of errors that the SIM 1336 * drivers should return in the event of a 1337 * data transfer failure. A data phase 1338 * error will at least point the user to a 1339 * data transfer error of some sort. 1340 * Hopefully the SIM printed out some 1341 * additional information to give the user 1342 * a clue what happened. 1343 */ 1344 io->io_hdr.port_status = 0xbad1; 1345 ctl_set_data_phase_error(&io->scsiio); 1346 /* 1347 * XXX KDM figure out residual. 1348 */ 1349 break; 1350 } 1351 /* 1352 * If we had to break this S/G list into multiple 1353 * pieces, figure out where we are in the list, and 1354 * continue sending pieces if necessary. 1355 */ 1356 if ((cmd_info->flags & CTLFE_CMD_PIECEWISE) 1357 && (io->io_hdr.port_status == 0)) { 1358 ccb_flags flags; 1359 uint8_t *data_ptr; 1360 uint32_t dxfer_len; 1361 1362 flags = atio->ccb_h.flags & 1363 (CAM_DIS_DISCONNECT| 1364 CAM_TAG_ACTION_VALID); 1365 1366 ctlfedata(softc, io, &flags, &data_ptr, 1367 &dxfer_len, &csio->sglist_cnt); 1368 1369 if (((flags & CAM_SEND_STATUS) == 0) 1370 && (dxfer_len == 0)) { 1371 printf("%s: tag %04x no status or " 1372 "len cdb = %02x\n", __func__, 1373 atio->tag_id, 1374 atio_cdb_ptr(atio)[0]); 1375 printf("%s: tag %04x io status %#x\n", 1376 __func__, atio->tag_id, 1377 io->io_hdr.status); 1378 } 1379 1380 cam_fill_ctio(csio, 1381 /*retries*/ 2, 1382 ctlfedone, 1383 flags, 1384 (flags & CAM_TAG_ACTION_VALID) ? 1385 MSG_SIMPLE_Q_TAG : 0, 1386 atio->tag_id, 1387 atio->init_id, 1388 0, 1389 /*data_ptr*/ data_ptr, 1390 /*dxfer_len*/ dxfer_len, 1391 /*timeout*/ 5 * 1000); 1392 1393 csio->ccb_h.flags |= CAM_UNLOCKED; 1394 csio->resid = 0; 1395 csio->ccb_h.ccb_atio = atio; 1396 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 1397 softc->ctios_sent++; 1398 mtx_unlock(mtx); 1399 xpt_action((union ccb *)csio); 1400 } else { 1401 /* 1402 * Release the CTIO. The ATIO will be sent back 1403 * down to the SIM once we send status. 1404 */ 1405 xpt_release_ccb(done_ccb); 1406 mtx_unlock(mtx); 1407 1408 /* Call the backend move done callback */ 1409 io->scsiio.be_move_done(io); 1410 } 1411 return; 1412 } 1413 break; 1414 } 1415 case XPT_IMMEDIATE_NOTIFY: { 1416 union ctl_io *io; 1417 struct ccb_immediate_notify *inot; 1418 int send_ctl_io; 1419 1420 inot = &done_ccb->cin1; 1421 io = done_ccb->ccb_h.io_ptr; 1422 ctl_zero_io(io); 1423 1424 send_ctl_io = 1; 1425 1426 io->io_hdr.io_type = CTL_IO_TASK; 1427 PRIV_CCB(io) = done_ccb; 1428 inot->ccb_h.io_ptr = io; 1429 io->io_hdr.nexus.initid = inot->initiator_id; 1430 io->io_hdr.nexus.targ_port = bus_softc->port.targ_port; 1431 if (bus_softc->hba_misc & PIM_EXTLUNS) { 1432 io->io_hdr.nexus.targ_lun = ctl_decode_lun( 1433 CAM_EXTLUN_BYTE_SWIZZLE(inot->ccb_h.target_lun)); 1434 } else { 1435 io->io_hdr.nexus.targ_lun = inot->ccb_h.target_lun; 1436 } 1437 /* XXX KDM should this be the tag_id? */ 1438 io->taskio.tag_num = inot->seq_id; 1439 1440 status = inot->ccb_h.status & CAM_STATUS_MASK; 1441 switch (status) { 1442 case CAM_SCSI_BUS_RESET: 1443 io->taskio.task_action = CTL_TASK_BUS_RESET; 1444 break; 1445 case CAM_BDR_SENT: 1446 io->taskio.task_action = CTL_TASK_TARGET_RESET; 1447 break; 1448 case CAM_MESSAGE_RECV: 1449 switch (inot->arg) { 1450 case MSG_ABORT_TASK_SET: 1451 io->taskio.task_action = 1452 CTL_TASK_ABORT_TASK_SET; 1453 break; 1454 case MSG_TARGET_RESET: 1455 io->taskio.task_action = CTL_TASK_TARGET_RESET; 1456 break; 1457 case MSG_ABORT_TASK: 1458 io->taskio.task_action = CTL_TASK_ABORT_TASK; 1459 break; 1460 case MSG_LOGICAL_UNIT_RESET: 1461 io->taskio.task_action = CTL_TASK_LUN_RESET; 1462 break; 1463 case MSG_CLEAR_TASK_SET: 1464 io->taskio.task_action = 1465 CTL_TASK_CLEAR_TASK_SET; 1466 break; 1467 case MSG_CLEAR_ACA: 1468 io->taskio.task_action = CTL_TASK_CLEAR_ACA; 1469 break; 1470 case MSG_QUERY_TASK: 1471 io->taskio.task_action = CTL_TASK_QUERY_TASK; 1472 break; 1473 case MSG_QUERY_TASK_SET: 1474 io->taskio.task_action = 1475 CTL_TASK_QUERY_TASK_SET; 1476 break; 1477 case MSG_QUERY_ASYNC_EVENT: 1478 io->taskio.task_action = 1479 CTL_TASK_QUERY_ASYNC_EVENT; 1480 break; 1481 case MSG_NOOP: 1482 send_ctl_io = 0; 1483 break; 1484 default: 1485 xpt_print(periph->path, 1486 "%s: unsupported INOT message 0x%x\n", 1487 __func__, inot->arg); 1488 send_ctl_io = 0; 1489 break; 1490 } 1491 break; 1492 default: 1493 xpt_print(periph->path, 1494 "%s: unsupported INOT status 0x%x\n", 1495 __func__, status); 1496 /* FALLTHROUGH */ 1497 case CAM_REQ_ABORTED: 1498 case CAM_REQ_INVALID: 1499 case CAM_DEV_NOT_THERE: 1500 case CAM_PROVIDE_FAIL: 1501 ctlfe_free_ccb(periph, done_ccb); 1502 goto out; 1503 } 1504 if (send_ctl_io != 0) { 1505 ctl_queue(io); 1506 } else { 1507 done_ccb->ccb_h.status = CAM_REQ_INPROG; 1508 done_ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE; 1509 xpt_action(done_ccb); 1510 } 1511 break; 1512 } 1513 case XPT_NOTIFY_ACKNOWLEDGE: 1514 /* Queue this back down to the SIM as an immediate notify. */ 1515 done_ccb->ccb_h.status = CAM_REQ_INPROG; 1516 done_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY; 1517 ctlfe_requeue_ccb(periph, done_ccb, /* unlock */1); 1518 return; 1519 case XPT_SET_SIM_KNOB: 1520 case XPT_GET_SIM_KNOB: 1521 case XPT_GET_SIM_KNOB_OLD: 1522 break; 1523 default: 1524 panic("%s: unexpected CCB type %#x", __func__, 1525 done_ccb->ccb_h.func_code); 1526 break; 1527 } 1528 1529out: 1530 mtx_unlock(mtx); 1531} 1532 1533static void 1534ctlfe_onoffline(void *arg, int online) 1535{ 1536 struct ctlfe_softc *bus_softc; 1537 union ccb *ccb; 1538 cam_status status; 1539 struct cam_path *path; 1540 int set_wwnn; 1541 1542 bus_softc = (struct ctlfe_softc *)arg; 1543 1544 set_wwnn = 0; 1545 1546 status = xpt_create_path(&path, /*periph*/ NULL, bus_softc->path_id, 1547 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 1548 if (status != CAM_REQ_CMP) { 1549 printf("%s: unable to create path!\n", __func__); 1550 return; 1551 } 1552 ccb = xpt_alloc_ccb(); 1553 xpt_setup_ccb(&ccb->ccb_h, path, CAM_PRIORITY_NONE); 1554 ccb->ccb_h.func_code = XPT_GET_SIM_KNOB; 1555 xpt_action(ccb); 1556 1557 /* 1558 * Copan WWN format: 1559 * 1560 * Bits 63-60: 0x5 NAA, IEEE registered name 1561 * Bits 59-36: 0x000ED5 IEEE Company name assigned to Copan 1562 * Bits 35-12: Copan SSN (Sequential Serial Number) 1563 * Bits 11-8: Type of port: 1564 * 1 == N-Port 1565 * 2 == F-Port 1566 * 3 == NL-Port 1567 * Bits 7-0: 0 == Node Name, >0 == Port Number 1568 */ 1569 if (online != 0) { 1570 if ((ccb->knob.xport_specific.valid & KNOB_VALID_ADDRESS) != 0){ 1571#ifdef RANDOM_WWNN 1572 uint64_t random_bits; 1573#endif 1574 1575 printf("%s: %s current WWNN %#jx\n", __func__, 1576 bus_softc->port_name, 1577 ccb->knob.xport_specific.fc.wwnn); 1578 printf("%s: %s current WWPN %#jx\n", __func__, 1579 bus_softc->port_name, 1580 ccb->knob.xport_specific.fc.wwpn); 1581 1582#ifdef RANDOM_WWNN 1583 arc4rand(&random_bits, sizeof(random_bits), 0); 1584#endif 1585 1586 /* 1587 * XXX KDM this is a bit of a kludge for now. We 1588 * take the current WWNN/WWPN from the card, and 1589 * replace the company identifier and the NL-Port 1590 * indicator and the port number (for the WWPN). 1591 * This should be replaced later with ddb_GetWWNN, 1592 * or possibly a more centralized scheme. (It 1593 * would be nice to have the WWNN/WWPN for each 1594 * port stored in the ctl_port structure.) 1595 */ 1596#ifdef RANDOM_WWNN 1597 ccb->knob.xport_specific.fc.wwnn = 1598 (random_bits & 1599 0x0000000fffffff00ULL) | 1600 /* Company ID */ 0x5000ED5000000000ULL | 1601 /* NL-Port */ 0x0300; 1602 ccb->knob.xport_specific.fc.wwpn = 1603 (random_bits & 1604 0x0000000fffffff00ULL) | 1605 /* Company ID */ 0x5000ED5000000000ULL | 1606 /* NL-Port */ 0x3000 | 1607 /* Port Num */ (bus_softc->port.targ_port & 0xff); 1608 1609 /* 1610 * This is a bit of an API break/reversal, but if 1611 * we're doing the random WWNN that's a little 1612 * different anyway. So record what we're actually 1613 * using with the frontend code so it's reported 1614 * accurately. 1615 */ 1616 ctl_port_set_wwns(&bus_softc->port, 1617 true, ccb->knob.xport_specific.fc.wwnn, 1618 true, ccb->knob.xport_specific.fc.wwpn); 1619 set_wwnn = 1; 1620#else /* RANDOM_WWNN */ 1621 /* 1622 * If the user has specified a WWNN/WWPN, send them 1623 * down to the SIM. Otherwise, record what the SIM 1624 * has reported. 1625 */ 1626 if (bus_softc->port.wwnn != 0 && bus_softc->port.wwnn 1627 != ccb->knob.xport_specific.fc.wwnn) { 1628 ccb->knob.xport_specific.fc.wwnn = 1629 bus_softc->port.wwnn; 1630 set_wwnn = 1; 1631 } else { 1632 ctl_port_set_wwns(&bus_softc->port, 1633 true, ccb->knob.xport_specific.fc.wwnn, 1634 false, 0); 1635 } 1636 if (bus_softc->port.wwpn != 0 && bus_softc->port.wwpn 1637 != ccb->knob.xport_specific.fc.wwpn) { 1638 ccb->knob.xport_specific.fc.wwpn = 1639 bus_softc->port.wwpn; 1640 set_wwnn = 1; 1641 } else { 1642 ctl_port_set_wwns(&bus_softc->port, 1643 false, 0, 1644 true, ccb->knob.xport_specific.fc.wwpn); 1645 } 1646#endif /* RANDOM_WWNN */ 1647 1648 1649 if (set_wwnn != 0) { 1650 printf("%s: %s new WWNN %#jx\n", __func__, 1651 bus_softc->port_name, 1652 ccb->knob.xport_specific.fc.wwnn); 1653 printf("%s: %s new WWPN %#jx\n", __func__, 1654 bus_softc->port_name, 1655 ccb->knob.xport_specific.fc.wwpn); 1656 } 1657 } else { 1658 printf("%s: %s has no valid WWNN/WWPN\n", __func__, 1659 bus_softc->port_name); 1660 } 1661 } 1662 ccb->ccb_h.func_code = XPT_SET_SIM_KNOB; 1663 ccb->knob.xport_specific.valid = KNOB_VALID_ROLE; 1664 if (set_wwnn != 0) 1665 ccb->knob.xport_specific.valid |= KNOB_VALID_ADDRESS; 1666 1667 if (online != 0) 1668 ccb->knob.xport_specific.fc.role |= KNOB_ROLE_TARGET; 1669 else 1670 ccb->knob.xport_specific.fc.role &= ~KNOB_ROLE_TARGET; 1671 1672 xpt_action(ccb); 1673 1674 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1675 printf("%s: SIM %s (path id %d) target %s failed with " 1676 "status %#x\n", 1677 __func__, bus_softc->port_name, bus_softc->path_id, 1678 (online != 0) ? "enable" : "disable", 1679 ccb->ccb_h.status); 1680 } else { 1681 printf("%s: SIM %s (path id %d) target %s succeeded\n", 1682 __func__, bus_softc->port_name, bus_softc->path_id, 1683 (online != 0) ? "enable" : "disable"); 1684 } 1685 1686 xpt_free_path(path); 1687 xpt_free_ccb(ccb); 1688} 1689 1690static void 1691ctlfe_online(void *arg) 1692{ 1693 struct ctlfe_softc *bus_softc; 1694 struct cam_path *path; 1695 cam_status status; 1696 struct ctlfe_lun_softc *lun_softc; 1697 struct cam_periph *periph; 1698 1699 bus_softc = (struct ctlfe_softc *)arg; 1700 1701 /* 1702 * Create the wildcard LUN before bringing the port online. 1703 */ 1704 status = xpt_create_path(&path, /*periph*/ NULL, 1705 bus_softc->path_id, CAM_TARGET_WILDCARD, 1706 CAM_LUN_WILDCARD); 1707 if (status != CAM_REQ_CMP) { 1708 printf("%s: unable to create path for wildcard periph\n", 1709 __func__); 1710 return; 1711 } 1712 1713 lun_softc = malloc(sizeof(*lun_softc), M_CTLFE, M_WAITOK | M_ZERO); 1714 1715 xpt_path_lock(path); 1716 periph = cam_periph_find(path, "ctl"); 1717 if (periph != NULL) { 1718 /* We've already got a periph, no need to alloc a new one. */ 1719 xpt_path_unlock(path); 1720 xpt_free_path(path); 1721 free(lun_softc, M_CTLFE); 1722 return; 1723 } 1724 lun_softc->parent_softc = bus_softc; 1725 lun_softc->flags |= CTLFE_LUN_WILDCARD; 1726 1727 status = cam_periph_alloc(ctlferegister, 1728 ctlfeoninvalidate, 1729 ctlfecleanup, 1730 ctlfestart, 1731 "ctl", 1732 CAM_PERIPH_BIO, 1733 path, 1734 ctlfeasync, 1735 0, 1736 lun_softc); 1737 1738 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1739 const struct cam_status_entry *entry; 1740 1741 entry = cam_fetch_status_entry(status); 1742 printf("%s: CAM error %s (%#x) returned from " 1743 "cam_periph_alloc()\n", __func__, (entry != NULL) ? 1744 entry->status_text : "Unknown", status); 1745 free(lun_softc, M_CTLFE); 1746 } 1747 1748 xpt_path_unlock(path); 1749 ctlfe_onoffline(arg, /*online*/ 1); 1750 xpt_free_path(path); 1751} 1752 1753static void 1754ctlfe_offline(void *arg) 1755{ 1756 struct ctlfe_softc *bus_softc; 1757 struct cam_path *path; 1758 cam_status status; 1759 struct cam_periph *periph; 1760 1761 bus_softc = (struct ctlfe_softc *)arg; 1762 1763 ctlfe_onoffline(arg, /*online*/ 0); 1764 1765 /* 1766 * Disable the wildcard LUN for this port now that we have taken 1767 * the port offline. 1768 */ 1769 status = xpt_create_path(&path, /*periph*/ NULL, 1770 bus_softc->path_id, CAM_TARGET_WILDCARD, 1771 CAM_LUN_WILDCARD); 1772 if (status != CAM_REQ_CMP) { 1773 printf("%s: unable to create path for wildcard periph\n", 1774 __func__); 1775 return; 1776 } 1777 xpt_path_lock(path); 1778 if ((periph = cam_periph_find(path, "ctl")) != NULL) 1779 cam_periph_invalidate(periph); 1780 xpt_path_unlock(path); 1781 xpt_free_path(path); 1782} 1783 1784/* 1785 * This will get called to enable a LUN on every bus that is attached to 1786 * CTL. So we only need to create a path/periph for this particular bus. 1787 */ 1788static int 1789ctlfe_lun_enable(void *arg, int lun_id) 1790{ 1791 struct ctlfe_softc *bus_softc; 1792 struct ctlfe_lun_softc *softc; 1793 struct cam_path *path; 1794 struct cam_periph *periph; 1795 cam_status status; 1796 1797 bus_softc = (struct ctlfe_softc *)arg; 1798 if (bus_softc->hba_misc & PIM_EXTLUNS) 1799 lun_id = CAM_EXTLUN_BYTE_SWIZZLE(ctl_encode_lun(lun_id)); 1800 1801 status = xpt_create_path(&path, /*periph*/ NULL, 1802 bus_softc->path_id, bus_softc->target_id, lun_id); 1803 /* XXX KDM need some way to return status to CTL here? */ 1804 if (status != CAM_REQ_CMP) { 1805 printf("%s: could not create path, status %#x\n", __func__, 1806 status); 1807 return (1); 1808 } 1809 1810 softc = malloc(sizeof(*softc), M_CTLFE, M_WAITOK | M_ZERO); 1811 xpt_path_lock(path); 1812 periph = cam_periph_find(path, "ctl"); 1813 if (periph != NULL) { 1814 /* We've already got a periph, no need to alloc a new one. */ 1815 xpt_path_unlock(path); 1816 xpt_free_path(path); 1817 free(softc, M_CTLFE); 1818 return (0); 1819 } 1820 softc->parent_softc = bus_softc; 1821 1822 status = cam_periph_alloc(ctlferegister, 1823 ctlfeoninvalidate, 1824 ctlfecleanup, 1825 ctlfestart, 1826 "ctl", 1827 CAM_PERIPH_BIO, 1828 path, 1829 ctlfeasync, 1830 0, 1831 softc); 1832 1833 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1834 const struct cam_status_entry *entry; 1835 1836 entry = cam_fetch_status_entry(status); 1837 printf("%s: CAM error %s (%#x) returned from " 1838 "cam_periph_alloc()\n", __func__, (entry != NULL) ? 1839 entry->status_text : "Unknown", status); 1840 free(softc, M_CTLFE); 1841 } 1842 1843 xpt_path_unlock(path); 1844 xpt_free_path(path); 1845 return (0); 1846} 1847 1848/* 1849 * This will get called when the user removes a LUN to disable that LUN 1850 * on every bus that is attached to CTL. 1851 */ 1852static int 1853ctlfe_lun_disable(void *arg, int lun_id) 1854{ 1855 struct ctlfe_softc *softc; 1856 struct ctlfe_lun_softc *lun_softc; 1857 1858 softc = (struct ctlfe_softc *)arg; 1859 if (softc->hba_misc & PIM_EXTLUNS) 1860 lun_id = CAM_EXTLUN_BYTE_SWIZZLE(ctl_encode_lun(lun_id)); 1861 1862 mtx_lock(&softc->lun_softc_mtx); 1863 STAILQ_FOREACH(lun_softc, &softc->lun_softc_list, links) { 1864 struct cam_path *path; 1865 1866 path = lun_softc->periph->path; 1867 1868 if ((xpt_path_target_id(path) == softc->target_id) 1869 && (xpt_path_lun_id(path) == lun_id)) { 1870 break; 1871 } 1872 } 1873 if (lun_softc == NULL) { 1874 mtx_unlock(&softc->lun_softc_mtx); 1875 printf("%s: can't find lun %d\n", __func__, lun_id); 1876 return (1); 1877 } 1878 cam_periph_acquire(lun_softc->periph); 1879 mtx_unlock(&softc->lun_softc_mtx); 1880 1881 cam_periph_lock(lun_softc->periph); 1882 cam_periph_invalidate(lun_softc->periph); 1883 cam_periph_unlock(lun_softc->periph); 1884 cam_periph_release(lun_softc->periph); 1885 return (0); 1886} 1887 1888static void 1889ctlfe_dump_sim(struct cam_sim *sim) 1890{ 1891 1892 printf("%s%d: max tagged openings: %d, max dev openings: %d\n", 1893 sim->sim_name, sim->unit_number, 1894 sim->max_tagged_dev_openings, sim->max_dev_openings); 1895} 1896 1897/* 1898 * Assumes that the SIM lock is held. 1899 */ 1900static void 1901ctlfe_dump_queue(struct ctlfe_lun_softc *softc) 1902{ 1903 struct ccb_hdr *hdr; 1904 struct cam_periph *periph; 1905 int num_items; 1906 1907 periph = softc->periph; 1908 num_items = 0; 1909 1910 TAILQ_FOREACH(hdr, &softc->work_queue, periph_links.tqe) { 1911 union ctl_io *io = hdr->io_ptr; 1912 1913 num_items++; 1914 1915 /* 1916 * Only regular SCSI I/O is put on the work 1917 * queue, so we can print sense here. There may be no 1918 * sense if it's no the queue for a DMA, but this serves to 1919 * print out the CCB as well. 1920 * 1921 * XXX KDM switch this over to scsi_sense_print() when 1922 * CTL is merged in with CAM. 1923 */ 1924 ctl_io_error_print(io, NULL); 1925 1926 /* 1927 * Print DMA status if we are DMA_QUEUED. 1928 */ 1929 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) { 1930 xpt_print(periph->path, 1931 "Total %u, Current %u, Resid %u\n", 1932 io->scsiio.kern_total_len, 1933 io->scsiio.kern_data_len, 1934 io->scsiio.kern_data_resid); 1935 } 1936 } 1937 1938 xpt_print(periph->path, "%d requests waiting for CCBs\n", num_items); 1939 xpt_print(periph->path, "%d CTIOs outstanding\n", softc->ctios_sent); 1940} 1941 1942/* 1943 * Datamove/done routine called by CTL. Put ourselves on the queue to 1944 * receive a CCB from CAM so we can queue the continue I/O request down 1945 * to the adapter. 1946 */ 1947static void 1948ctlfe_datamove(union ctl_io *io) 1949{ 1950 union ccb *ccb; 1951 struct cam_periph *periph; 1952 struct ctlfe_lun_softc *softc; 1953 1954 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 1955 ("Unexpected io_type (%d) in ctlfe_datamove", io->io_hdr.io_type)); 1956 1957 io->scsiio.ext_data_filled = 0; 1958 ccb = PRIV_CCB(io); 1959 periph = xpt_path_periph(ccb->ccb_h.path); 1960 cam_periph_lock(periph); 1961 softc = (struct ctlfe_lun_softc *)periph->softc; 1962 io->io_hdr.flags |= CTL_FLAG_DMA_QUEUED; 1963 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) 1964 io->io_hdr.flags |= CTL_FLAG_STATUS_QUEUED; 1965 TAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h, 1966 periph_links.tqe); 1967 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1968 cam_periph_unlock(periph); 1969} 1970 1971static void 1972ctlfe_done(union ctl_io *io) 1973{ 1974 union ccb *ccb; 1975 struct cam_periph *periph; 1976 struct ctlfe_lun_softc *softc; 1977 1978 ccb = PRIV_CCB(io); 1979 periph = xpt_path_periph(ccb->ccb_h.path); 1980 cam_periph_lock(periph); 1981 softc = (struct ctlfe_lun_softc *)periph->softc; 1982 1983 if (io->io_hdr.io_type == CTL_IO_TASK) { 1984 /* 1985 * Send the notify acknowledge down to the SIM, to let it 1986 * know we processed the task management command. 1987 */ 1988 ccb->ccb_h.status = CAM_REQ_INPROG; 1989 ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE; 1990 switch (io->taskio.task_status) { 1991 case CTL_TASK_FUNCTION_COMPLETE: 1992 ccb->cna2.arg = CAM_RSP_TMF_COMPLETE; 1993 break; 1994 case CTL_TASK_FUNCTION_SUCCEEDED: 1995 ccb->cna2.arg = CAM_RSP_TMF_SUCCEEDED; 1996 ccb->ccb_h.flags |= CAM_SEND_STATUS; 1997 break; 1998 case CTL_TASK_FUNCTION_REJECTED: 1999 ccb->cna2.arg = CAM_RSP_TMF_REJECTED; 2000 ccb->ccb_h.flags |= CAM_SEND_STATUS; 2001 break; 2002 case CTL_TASK_LUN_DOES_NOT_EXIST: 2003 ccb->cna2.arg = CAM_RSP_TMF_INCORRECT_LUN; 2004 ccb->ccb_h.flags |= CAM_SEND_STATUS; 2005 break; 2006 case CTL_TASK_FUNCTION_NOT_SUPPORTED: 2007 ccb->cna2.arg = CAM_RSP_TMF_FAILED; 2008 ccb->ccb_h.flags |= CAM_SEND_STATUS; 2009 break; 2010 } 2011 ccb->cna2.arg |= scsi_3btoul(io->taskio.task_resp) << 8; 2012 xpt_action(ccb); 2013 } else if (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) { 2014 ctlfe_requeue_ccb(periph, ccb, /* unlock */1); 2015 return; 2016 } else { 2017 io->io_hdr.flags |= CTL_FLAG_STATUS_QUEUED; 2018 TAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h, 2019 periph_links.tqe); 2020 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 2021 } 2022 2023 cam_periph_unlock(periph); 2024} 2025 2026static void 2027ctlfe_dump(void) 2028{ 2029 struct ctlfe_softc *bus_softc; 2030 struct ctlfe_lun_softc *lun_softc; 2031 2032 STAILQ_FOREACH(bus_softc, &ctlfe_softc_list, links) { 2033 ctlfe_dump_sim(bus_softc->sim); 2034 STAILQ_FOREACH(lun_softc, &bus_softc->lun_softc_list, links) 2035 ctlfe_dump_queue(lun_softc); 2036 } 2037} 2038