scsi_ctl.c revision 315889
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/10/sys/cam/ctl/scsi_ctl.c 315889 2017-03-24 07:02:03Z 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 94typedef enum { 95 CTLFE_LUN_NONE = 0x00, 96 CTLFE_LUN_WILDCARD = 0x01 97} ctlfe_lun_flags; 98 99struct ctlfe_lun_softc { 100 struct ctlfe_softc *parent_softc; 101 struct cam_periph *periph; 102 ctlfe_lun_flags flags; 103 int ctios_sent; /* Number of active CTIOs */ 104 int refcount; /* Number of active xpt_action() */ 105 int atios_alloced; /* Number of ATIOs not freed */ 106 int inots_alloced; /* Number of INOTs not freed */ 107 struct task refdrain_task; 108 STAILQ_HEAD(, ccb_hdr) work_queue; 109 LIST_HEAD(, ccb_hdr) atio_list; /* List of ATIOs queued to SIM. */ 110 LIST_HEAD(, ccb_hdr) inot_list; /* List of INOTs queued to SIM. */ 111 STAILQ_ENTRY(ctlfe_lun_softc) links; 112}; 113 114typedef enum { 115 CTLFE_CMD_NONE = 0x00, 116 CTLFE_CMD_PIECEWISE = 0x01 117} ctlfe_cmd_flags; 118 119struct ctlfe_cmd_info { 120 int cur_transfer_index; 121 size_t cur_transfer_off; 122 ctlfe_cmd_flags flags; 123 /* 124 * XXX KDM struct bus_dma_segment is 8 bytes on i386, and 16 125 * bytes on amd64. So with 32 elements, this is 256 bytes on 126 * i386 and 512 bytes on amd64. 127 */ 128#define CTLFE_MAX_SEGS 32 129 bus_dma_segment_t cam_sglist[CTLFE_MAX_SEGS]; 130}; 131 132/* 133 * When we register the adapter/bus, request that this many ctl_ios be 134 * allocated. This should be the maximum supported by the adapter, but we 135 * currently don't have a way to get that back from the path inquiry. 136 * XXX KDM add that to the path inquiry. 137 */ 138#define CTLFE_REQ_CTL_IO 4096 139/* 140 * Number of Accept Target I/O CCBs to allocate and queue down to the 141 * adapter per LUN. 142 * XXX KDM should this be controlled by CTL? 143 */ 144#define CTLFE_ATIO_PER_LUN 1024 145/* 146 * Number of Immediate Notify CCBs (used for aborts, resets, etc.) to 147 * allocate and queue down to the adapter per LUN. 148 * XXX KDM should this be controlled by CTL? 149 */ 150#define CTLFE_IN_PER_LUN 1024 151 152/* 153 * Timeout (in seconds) on CTIO CCB doing DMA or sending status 154 */ 155#define CTLFE_TIMEOUT 5 156 157/* 158 * Turn this on to enable extra debugging prints. 159 */ 160#if 0 161#define CTLFE_DEBUG 162#endif 163 164MALLOC_DEFINE(M_CTLFE, "CAM CTL FE", "CAM CTL FE interface"); 165 166#define io_ptr ppriv_ptr0 167 168/* This is only used in the CTIO */ 169#define ccb_atio ppriv_ptr1 170 171#define PRIV_CCB(io) ((io)->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptrs[0]) 172#define PRIV_INFO(io) ((io)->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptrs[1]) 173 174static int ctlfeinitialize(void); 175static int ctlfeshutdown(void); 176static periph_init_t ctlfeperiphinit; 177static void ctlfeasync(void *callback_arg, uint32_t code, 178 struct cam_path *path, void *arg); 179static periph_ctor_t ctlferegister; 180static periph_oninv_t ctlfeoninvalidate; 181static periph_dtor_t ctlfecleanup; 182static periph_start_t ctlfestart; 183static void ctlfedone(struct cam_periph *periph, 184 union ccb *done_ccb); 185 186static void ctlfe_onoffline(void *arg, int online); 187static void ctlfe_online(void *arg); 188static void ctlfe_offline(void *arg); 189static int ctlfe_lun_enable(void *arg, int lun_id); 190static int ctlfe_lun_disable(void *arg, int lun_id); 191static void ctlfe_dump_sim(struct cam_sim *sim); 192static void ctlfe_dump_queue(struct ctlfe_lun_softc *softc); 193static void ctlfe_datamove(union ctl_io *io); 194static void ctlfe_done(union ctl_io *io); 195static void ctlfe_dump(void); 196static void ctlfe_free_ccb(struct cam_periph *periph, 197 union ccb *ccb); 198static void ctlfe_requeue_ccb(struct cam_periph *periph, 199 union ccb *ccb, int unlock); 200 201static struct periph_driver ctlfe_driver = 202{ 203 ctlfeperiphinit, "ctl", 204 TAILQ_HEAD_INITIALIZER(ctlfe_driver.units), /*generation*/ 0, 205 CAM_PERIPH_DRV_EARLY 206}; 207 208static struct ctl_frontend ctlfe_frontend = 209{ 210 .name = "camtgt", 211 .init = ctlfeinitialize, 212 .fe_dump = ctlfe_dump, 213 .shutdown = ctlfeshutdown, 214}; 215CTL_FRONTEND_DECLARE(ctlfe, ctlfe_frontend); 216 217static int 218ctlfeshutdown(void) 219{ 220 221 /* CAM does not support periph driver unregister now. */ 222 return (EBUSY); 223} 224 225static int 226ctlfeinitialize(void) 227{ 228 229 STAILQ_INIT(&ctlfe_softc_list); 230 mtx_init(&ctlfe_list_mtx, ctlfe_mtx_desc, NULL, MTX_DEF); 231 periphdriver_register(&ctlfe_driver); 232 return (0); 233} 234 235static void 236ctlfeperiphinit(void) 237{ 238 cam_status status; 239 240 status = xpt_register_async(AC_PATH_REGISTERED | AC_PATH_DEREGISTERED | 241 AC_CONTRACT, ctlfeasync, NULL, NULL); 242 if (status != CAM_REQ_CMP) { 243 printf("ctl: Failed to attach async callback due to CAM " 244 "status 0x%x!\n", status); 245 } 246} 247 248static void 249ctlfeasync(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 250{ 251 struct ctlfe_softc *softc; 252 253#ifdef CTLFEDEBUG 254 printf("%s: entered\n", __func__); 255#endif 256 257 mtx_lock(&ctlfe_list_mtx); 258 STAILQ_FOREACH(softc, &ctlfe_softc_list, links) { 259 if (softc->path_id == xpt_path_path_id(path)) 260 break; 261 } 262 mtx_unlock(&ctlfe_list_mtx); 263 264 /* 265 * When a new path gets registered, and it is capable of target 266 * mode, go ahead and attach. Later on, we may need to be more 267 * selective, but for now this will be sufficient. 268 */ 269 switch (code) { 270 case AC_PATH_REGISTERED: { 271 struct ctl_port *port; 272 struct ccb_pathinq *cpi; 273 int retval; 274 275 cpi = (struct ccb_pathinq *)arg; 276 277 /* Don't attach if it doesn't support target mode */ 278 if ((cpi->target_sprt & PIT_PROCESSOR) == 0) { 279#ifdef CTLFEDEBUG 280 printf("%s: SIM %s%d doesn't support target mode\n", 281 __func__, cpi->dev_name, cpi->unit_number); 282#endif 283 break; 284 } 285 286 if (softc != NULL) { 287#ifdef CTLFEDEBUG 288 printf("%s: CTL port for CAM path %u already exists\n", 289 __func__, xpt_path_path_id(path)); 290#endif 291 break; 292 } 293 294 /* 295 * We're in an interrupt context here, so we have to 296 * use M_NOWAIT. Of course this means trouble if we 297 * can't allocate memory. 298 */ 299 softc = malloc(sizeof(*softc), M_CTLFE, M_NOWAIT | M_ZERO); 300 if (softc == NULL) { 301 printf("%s: unable to malloc %zd bytes for softc\n", 302 __func__, sizeof(*softc)); 303 return; 304 } 305 306 softc->path_id = cpi->ccb_h.path_id; 307 softc->target_id = cpi->initiator_id; 308 softc->sim = xpt_path_sim(path); 309 softc->hba_misc = cpi->hba_misc; 310 if (cpi->maxio != 0) 311 softc->maxio = cpi->maxio; 312 else 313 softc->maxio = DFLTPHYS; 314 mtx_init(&softc->lun_softc_mtx, "LUN softc mtx", NULL, MTX_DEF); 315 STAILQ_INIT(&softc->lun_softc_list); 316 317 port = &softc->port; 318 port->frontend = &ctlfe_frontend; 319 320 /* 321 * XXX KDM should we be more accurate here ? 322 */ 323 if (cpi->transport == XPORT_FC) 324 port->port_type = CTL_PORT_FC; 325 else if (cpi->transport == XPORT_SAS) 326 port->port_type = CTL_PORT_SAS; 327 else 328 port->port_type = CTL_PORT_SCSI; 329 330 /* XXX KDM what should the real number be here? */ 331 port->num_requested_ctl_io = CTLFE_REQ_CTL_IO; 332 snprintf(softc->port_name, sizeof(softc->port_name), 333 "%s%d", cpi->dev_name, cpi->unit_number); 334 /* 335 * XXX KDM it would be nice to allocate storage in the 336 * frontend structure itself. 337 */ 338 port->port_name = softc->port_name; 339 port->physical_port = cpi->bus_id; 340 port->virtual_port = 0; 341 port->port_online = ctlfe_online; 342 port->port_offline = ctlfe_offline; 343 port->onoff_arg = softc; 344 port->lun_enable = ctlfe_lun_enable; 345 port->lun_disable = ctlfe_lun_disable; 346 port->targ_lun_arg = softc; 347 port->fe_datamove = ctlfe_datamove; 348 port->fe_done = ctlfe_done; 349 /* 350 * XXX KDM the path inquiry doesn't give us the maximum 351 * number of targets supported. 352 */ 353 port->max_targets = cpi->max_target; 354 port->max_target_id = cpi->max_target; 355 port->targ_port = -1; 356 357 retval = ctl_port_register(port); 358 if (retval != 0) { 359 printf("%s: ctl_port_register() failed with " 360 "error %d!\n", __func__, retval); 361 mtx_destroy(&softc->lun_softc_mtx); 362 free(softc, M_CTLFE); 363 break; 364 } else { 365 mtx_lock(&ctlfe_list_mtx); 366 STAILQ_INSERT_TAIL(&ctlfe_softc_list, softc, links); 367 mtx_unlock(&ctlfe_list_mtx); 368 } 369 370 break; 371 } 372 case AC_PATH_DEREGISTERED: { 373 374 if (softc != NULL) { 375 /* 376 * XXX KDM are we certain at this point that there 377 * are no outstanding commands for this frontend? 378 */ 379 mtx_lock(&ctlfe_list_mtx); 380 STAILQ_REMOVE(&ctlfe_softc_list, softc, ctlfe_softc, 381 links); 382 mtx_unlock(&ctlfe_list_mtx); 383 ctl_port_deregister(&softc->port); 384 mtx_destroy(&softc->lun_softc_mtx); 385 free(softc, M_CTLFE); 386 } 387 break; 388 } 389 case AC_CONTRACT: { 390 struct ac_contract *ac; 391 392 ac = (struct ac_contract *)arg; 393 394 switch (ac->contract_number) { 395 case AC_CONTRACT_DEV_CHG: { 396 struct ac_device_changed *dev_chg; 397 int retval; 398 399 dev_chg = (struct ac_device_changed *)ac->contract_data; 400 401 printf("%s: WWPN %#jx port 0x%06x path %u target %u %s\n", 402 __func__, dev_chg->wwpn, dev_chg->port, 403 xpt_path_path_id(path), dev_chg->target, 404 (dev_chg->arrived == 0) ? "left" : "arrived"); 405 406 if (softc == NULL) { 407 printf("%s: CTL port for CAM path %u not " 408 "found!\n", __func__, 409 xpt_path_path_id(path)); 410 break; 411 } 412 if (dev_chg->arrived != 0) { 413 retval = ctl_add_initiator(&softc->port, 414 dev_chg->target, dev_chg->wwpn, NULL); 415 } else { 416 retval = ctl_remove_initiator(&softc->port, 417 dev_chg->target); 418 } 419 420 if (retval < 0) { 421 printf("%s: could not %s port %d iid %u " 422 "WWPN %#jx!\n", __func__, 423 (dev_chg->arrived != 0) ? "add" : 424 "remove", softc->port.targ_port, 425 dev_chg->target, 426 (uintmax_t)dev_chg->wwpn); 427 } 428 break; 429 } 430 default: 431 printf("%s: unsupported contract number %ju\n", 432 __func__, (uintmax_t)ac->contract_number); 433 break; 434 } 435 break; 436 } 437 default: 438 break; 439 } 440} 441 442static cam_status 443ctlferegister(struct cam_periph *periph, void *arg) 444{ 445 struct ctlfe_softc *bus_softc; 446 struct ctlfe_lun_softc *softc; 447 union ccb ccb; 448 cam_status status; 449 int i; 450 451 softc = (struct ctlfe_lun_softc *)arg; 452 bus_softc = softc->parent_softc; 453 454 STAILQ_INIT(&softc->work_queue); 455 LIST_INIT(&softc->atio_list); 456 LIST_INIT(&softc->inot_list); 457 softc->periph = periph; 458 periph->softc = softc; 459 460 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); 461 ccb.ccb_h.func_code = XPT_EN_LUN; 462 ccb.cel.grp6_len = 0; 463 ccb.cel.grp7_len = 0; 464 ccb.cel.enable = 1; 465 xpt_action(&ccb); 466 status = (ccb.ccb_h.status & CAM_STATUS_MASK); 467 if (status != CAM_REQ_CMP) { 468 xpt_print(periph->path, "%s: Enable LUN failed, status 0x%x\n", 469 __func__, ccb.ccb_h.status); 470 return (status); 471 } 472 473 status = CAM_REQ_CMP; 474 475 for (i = 0; i < CTLFE_ATIO_PER_LUN; i++) { 476 union ccb *new_ccb; 477 union ctl_io *new_io; 478 struct ctlfe_cmd_info *cmd_info; 479 480 new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE, 481 M_ZERO|M_NOWAIT); 482 if (new_ccb == NULL) { 483 status = CAM_RESRC_UNAVAIL; 484 break; 485 } 486 new_io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref); 487 if (new_io == NULL) { 488 free(new_ccb, M_CTLFE); 489 status = CAM_RESRC_UNAVAIL; 490 break; 491 } 492 cmd_info = malloc(sizeof(*cmd_info), M_CTLFE, 493 M_ZERO | M_NOWAIT); 494 if (cmd_info == NULL) { 495 ctl_free_io(new_io); 496 free(new_ccb, M_CTLFE); 497 status = CAM_RESRC_UNAVAIL; 498 break; 499 } 500 PRIV_INFO(new_io) = cmd_info; 501 softc->atios_alloced++; 502 new_ccb->ccb_h.io_ptr = new_io; 503 LIST_INSERT_HEAD(&softc->atio_list, &new_ccb->ccb_h, periph_links.le); 504 505 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1); 506 new_ccb->ccb_h.func_code = XPT_ACCEPT_TARGET_IO; 507 new_ccb->ccb_h.cbfcnp = ctlfedone; 508 new_ccb->ccb_h.flags |= CAM_UNLOCKED; 509 xpt_action(new_ccb); 510 status = new_ccb->ccb_h.status; 511 if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 512 free(cmd_info, M_CTLFE); 513 ctl_free_io(new_io); 514 free(new_ccb, M_CTLFE); 515 break; 516 } 517 } 518 519 status = cam_periph_acquire(periph); 520 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 521 xpt_print(periph->path, "%s: could not acquire reference " 522 "count, status = %#x\n", __func__, status); 523 return (status); 524 } 525 526 if (i == 0) { 527 xpt_print(periph->path, "%s: could not allocate ATIO CCBs, " 528 "status 0x%x\n", __func__, status); 529 return (CAM_REQ_CMP_ERR); 530 } 531 532 for (i = 0; i < CTLFE_IN_PER_LUN; i++) { 533 union ccb *new_ccb; 534 union ctl_io *new_io; 535 536 new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE, 537 M_ZERO|M_NOWAIT); 538 if (new_ccb == NULL) { 539 status = CAM_RESRC_UNAVAIL; 540 break; 541 } 542 new_io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref); 543 if (new_io == NULL) { 544 free(new_ccb, M_CTLFE); 545 status = CAM_RESRC_UNAVAIL; 546 break; 547 } 548 softc->inots_alloced++; 549 new_ccb->ccb_h.io_ptr = new_io; 550 LIST_INSERT_HEAD(&softc->inot_list, &new_ccb->ccb_h, periph_links.le); 551 552 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1); 553 new_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY; 554 new_ccb->ccb_h.cbfcnp = ctlfedone; 555 new_ccb->ccb_h.flags |= CAM_UNLOCKED; 556 xpt_action(new_ccb); 557 status = new_ccb->ccb_h.status; 558 if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 559 /* 560 * Note that we don't free the CCB here. If the 561 * status is not CAM_REQ_INPROG, then we're 562 * probably talking to a SIM that says it is 563 * target-capable but doesn't support the 564 * XPT_IMMEDIATE_NOTIFY CCB. i.e. it supports the 565 * older API. In that case, it'll call xpt_done() 566 * on the CCB, and we need to free it in our done 567 * routine as a result. 568 */ 569 break; 570 } 571 } 572 if ((i == 0) 573 || (status != CAM_REQ_INPROG)) { 574 xpt_print(periph->path, "%s: could not allocate immediate " 575 "notify CCBs, status 0x%x\n", __func__, status); 576 return (CAM_REQ_CMP_ERR); 577 } 578 mtx_lock(&bus_softc->lun_softc_mtx); 579 STAILQ_INSERT_TAIL(&bus_softc->lun_softc_list, softc, links); 580 mtx_unlock(&bus_softc->lun_softc_mtx); 581 return (CAM_REQ_CMP); 582} 583 584static void 585ctlfeoninvalidate(struct cam_periph *periph) 586{ 587 struct ctlfe_lun_softc *softc = (struct ctlfe_lun_softc *)periph->softc; 588 struct ctlfe_softc *bus_softc; 589 union ccb ccb; 590 struct ccb_hdr *hdr; 591 cam_status status; 592 593 /* Abort all ATIOs and INOTs queued to SIM. */ 594 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); 595 ccb.ccb_h.func_code = XPT_ABORT; 596 LIST_FOREACH(hdr, &softc->atio_list, periph_links.le) { 597 ccb.cab.abort_ccb = (union ccb *)hdr; 598 xpt_action(&ccb); 599 } 600 LIST_FOREACH(hdr, &softc->inot_list, periph_links.le) { 601 ccb.cab.abort_ccb = (union ccb *)hdr; 602 xpt_action(&ccb); 603 } 604 605 /* Disable the LUN in SIM. */ 606 ccb.ccb_h.func_code = XPT_EN_LUN; 607 ccb.cel.grp6_len = 0; 608 ccb.cel.grp7_len = 0; 609 ccb.cel.enable = 0; 610 xpt_action(&ccb); 611 status = (ccb.ccb_h.status & CAM_STATUS_MASK); 612 if (status != CAM_REQ_CMP) { 613 xpt_print(periph->path, "%s: Disable LUN failed, status 0x%x\n", 614 __func__, ccb.ccb_h.status); 615 /* 616 * XXX KDM what do we do now? 617 */ 618 } 619 620 bus_softc = softc->parent_softc; 621 mtx_lock(&bus_softc->lun_softc_mtx); 622 STAILQ_REMOVE(&bus_softc->lun_softc_list, softc, ctlfe_lun_softc, links); 623 mtx_unlock(&bus_softc->lun_softc_mtx); 624} 625 626static void 627ctlfecleanup(struct cam_periph *periph) 628{ 629 struct ctlfe_lun_softc *softc; 630 631 softc = (struct ctlfe_lun_softc *)periph->softc; 632 633 KASSERT(softc->ctios_sent == 0, ("%s: ctios_sent %d != 0", 634 __func__, softc->ctios_sent)); 635 KASSERT(softc->refcount == 0, ("%s: refcount %d != 0", 636 __func__, softc->refcount)); 637 KASSERT(softc->atios_alloced == 0, ("%s: atios_alloced %d != 0", 638 __func__, softc->atios_alloced)); 639 KASSERT(softc->inots_alloced == 0, ("%s: inots_alloced %d != 0", 640 __func__, softc->inots_alloced)); 641 642 free(softc, M_CTLFE); 643} 644 645static void 646ctlfedata(struct ctlfe_lun_softc *softc, union ctl_io *io, 647 ccb_flags *flags, uint8_t **data_ptr, uint32_t *dxfer_len, 648 u_int16_t *sglist_cnt) 649{ 650 struct ctlfe_softc *bus_softc; 651 struct ctlfe_cmd_info *cmd_info; 652 struct ctl_sg_entry *ctl_sglist; 653 bus_dma_segment_t *cam_sglist; 654 size_t off; 655 int i, idx; 656 657 cmd_info = PRIV_INFO(io); 658 bus_softc = softc->parent_softc; 659 660 /* 661 * Set the direction, relative to the initiator. 662 */ 663 *flags &= ~CAM_DIR_MASK; 664 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 665 *flags |= CAM_DIR_IN; 666 else 667 *flags |= CAM_DIR_OUT; 668 669 *flags &= ~CAM_DATA_MASK; 670 idx = cmd_info->cur_transfer_index; 671 off = cmd_info->cur_transfer_off; 672 cmd_info->flags &= ~CTLFE_CMD_PIECEWISE; 673 if (io->scsiio.kern_sg_entries == 0) { /* No S/G list. */ 674 675 /* One time shift for SRR offset. */ 676 off += io->scsiio.ext_data_filled; 677 io->scsiio.ext_data_filled = 0; 678 679 *data_ptr = io->scsiio.kern_data_ptr + off; 680 if (io->scsiio.kern_data_len - off <= bus_softc->maxio) { 681 *dxfer_len = io->scsiio.kern_data_len - off; 682 } else { 683 *dxfer_len = bus_softc->maxio; 684 cmd_info->cur_transfer_off += bus_softc->maxio; 685 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 686 } 687 *sglist_cnt = 0; 688 689 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 690 *flags |= CAM_DATA_PADDR; 691 else 692 *flags |= CAM_DATA_VADDR; 693 } else { /* S/G list with physical or virtual pointers. */ 694 ctl_sglist = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 695 696 /* One time shift for SRR offset. */ 697 while (io->scsiio.ext_data_filled >= ctl_sglist[idx].len - off) { 698 io->scsiio.ext_data_filled -= ctl_sglist[idx].len - off; 699 idx++; 700 off = 0; 701 } 702 off += io->scsiio.ext_data_filled; 703 io->scsiio.ext_data_filled = 0; 704 705 cam_sglist = cmd_info->cam_sglist; 706 *dxfer_len = 0; 707 for (i = 0; i < io->scsiio.kern_sg_entries - idx; i++) { 708 cam_sglist[i].ds_addr = (bus_addr_t)ctl_sglist[i + idx].addr + off; 709 if (ctl_sglist[i + idx].len - off <= bus_softc->maxio - *dxfer_len) { 710 cam_sglist[i].ds_len = ctl_sglist[idx + i].len - off; 711 *dxfer_len += cam_sglist[i].ds_len; 712 } else { 713 cam_sglist[i].ds_len = bus_softc->maxio - *dxfer_len; 714 cmd_info->cur_transfer_index = idx + i; 715 cmd_info->cur_transfer_off = cam_sglist[i].ds_len + off; 716 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 717 *dxfer_len += cam_sglist[i].ds_len; 718 if (ctl_sglist[i].len != 0) 719 i++; 720 break; 721 } 722 if (i == (CTLFE_MAX_SEGS - 1) && 723 idx + i < (io->scsiio.kern_sg_entries - 1)) { 724 cmd_info->cur_transfer_index = idx + i + 1; 725 cmd_info->cur_transfer_off = 0; 726 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 727 i++; 728 break; 729 } 730 off = 0; 731 } 732 *sglist_cnt = i; 733 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 734 *flags |= CAM_DATA_SG_PADDR; 735 else 736 *flags |= CAM_DATA_SG; 737 *data_ptr = (uint8_t *)cam_sglist; 738 } 739} 740 741static void 742ctlfestart(struct cam_periph *periph, union ccb *start_ccb) 743{ 744 struct ctlfe_lun_softc *softc; 745 struct ctlfe_cmd_info *cmd_info; 746 struct ccb_hdr *ccb_h; 747 struct ccb_accept_tio *atio; 748 struct ccb_scsiio *csio; 749 uint8_t *data_ptr; 750 uint32_t dxfer_len; 751 ccb_flags flags; 752 union ctl_io *io; 753 uint8_t scsi_status; 754 755 softc = (struct ctlfe_lun_softc *)periph->softc; 756 757next: 758 /* Take the ATIO off the work queue */ 759 ccb_h = STAILQ_FIRST(&softc->work_queue); 760 if (ccb_h == NULL) { 761 xpt_release_ccb(start_ccb); 762 return; 763 } 764 STAILQ_REMOVE_HEAD(&softc->work_queue, periph_links.stqe); 765 atio = (struct ccb_accept_tio *)ccb_h; 766 io = (union ctl_io *)ccb_h->io_ptr; 767 csio = &start_ccb->csio; 768 769 flags = atio->ccb_h.flags & 770 (CAM_DIS_DISCONNECT|CAM_TAG_ACTION_VALID|CAM_DIR_MASK); 771 cmd_info = PRIV_INFO(io); 772 cmd_info->cur_transfer_index = 0; 773 cmd_info->cur_transfer_off = 0; 774 cmd_info->flags = 0; 775 776 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) { 777 /* 778 * Datamove call, we need to setup the S/G list. 779 */ 780 ctlfedata(softc, io, &flags, &data_ptr, &dxfer_len, 781 &csio->sglist_cnt); 782 } else { 783 /* 784 * We're done, send status back. 785 */ 786 if ((io->io_hdr.flags & CTL_FLAG_ABORT) && 787 (io->io_hdr.flags & CTL_FLAG_ABORT_STATUS) == 0) { 788 io->io_hdr.flags &= ~CTL_FLAG_STATUS_QUEUED; 789 790 /* Tell the SIM that we've aborted this ATIO */ 791#ifdef CTLFEDEBUG 792 printf("%s: tag %04x abort\n", __func__, atio->tag_id); 793#endif 794 KASSERT(atio->ccb_h.func_code == XPT_ACCEPT_TARGET_IO, 795 ("func_code %#x is not ATIO", atio->ccb_h.func_code)); 796 start_ccb->ccb_h.func_code = XPT_ABORT; 797 start_ccb->cab.abort_ccb = (union ccb *)atio; 798 xpt_action(start_ccb); 799 800 ctlfe_requeue_ccb(periph, (union ccb *)atio, 801 /* unlock */0); 802 803 /* XPT_ABORT is not queued, so we can take next I/O. */ 804 goto next; 805 } 806 data_ptr = NULL; 807 dxfer_len = 0; 808 csio->sglist_cnt = 0; 809 } 810 scsi_status = 0; 811 if ((io->io_hdr.flags & CTL_FLAG_STATUS_QUEUED) && 812 (cmd_info->flags & CTLFE_CMD_PIECEWISE) == 0 && 813 ((io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) == 0 || 814 io->io_hdr.status == CTL_SUCCESS)) { 815 flags |= CAM_SEND_STATUS; 816 scsi_status = io->scsiio.scsi_status; 817 csio->sense_len = io->scsiio.sense_len; 818#ifdef CTLFEDEBUG 819 printf("%s: tag %04x status %x\n", __func__, 820 atio->tag_id, io->io_hdr.status); 821#endif 822 if (csio->sense_len != 0) { 823 csio->sense_data = io->scsiio.sense_data; 824 flags |= CAM_SEND_SENSE; 825 } 826 } 827 828#ifdef CTLFEDEBUG 829 printf("%s: %s: tag %04x flags %x ptr %p len %u\n", __func__, 830 (flags & CAM_SEND_STATUS) ? "done" : "datamove", 831 atio->tag_id, flags, data_ptr, dxfer_len); 832#endif 833 834 /* 835 * Valid combinations: 836 * - CAM_SEND_STATUS, CAM_DATA_SG = 0, dxfer_len = 0, 837 * sglist_cnt = 0 838 * - CAM_SEND_STATUS = 0, CAM_DATA_SG = 0, dxfer_len != 0, 839 * sglist_cnt = 0 840 * - CAM_SEND_STATUS = 0, CAM_DATA_SG, dxfer_len != 0, 841 * sglist_cnt != 0 842 */ 843#ifdef CTLFEDEBUG 844 if (((flags & CAM_SEND_STATUS) 845 && (((flags & CAM_DATA_SG) != 0) 846 || (dxfer_len != 0) 847 || (csio->sglist_cnt != 0))) 848 || (((flags & CAM_SEND_STATUS) == 0) 849 && (dxfer_len == 0)) 850 || ((flags & CAM_DATA_SG) 851 && (csio->sglist_cnt == 0)) 852 || (((flags & CAM_DATA_SG) == 0) 853 && (csio->sglist_cnt != 0))) { 854 printf("%s: tag %04x cdb %02x flags %#x dxfer_len " 855 "%d sg %u\n", __func__, atio->tag_id, 856 atio_cdb_ptr(atio)[0], flags, dxfer_len, 857 csio->sglist_cnt); 858 printf("%s: tag %04x io status %#x\n", __func__, 859 atio->tag_id, io->io_hdr.status); 860 } 861#endif 862 cam_fill_ctio(csio, 863 /*retries*/ 2, 864 ctlfedone, 865 flags, 866 (flags & CAM_TAG_ACTION_VALID) ? MSG_SIMPLE_Q_TAG : 0, 867 atio->tag_id, 868 atio->init_id, 869 scsi_status, 870 /*data_ptr*/ data_ptr, 871 /*dxfer_len*/ dxfer_len, 872 /*timeout*/ CTLFE_TIMEOUT * 1000); 873 start_ccb->ccb_h.flags |= CAM_UNLOCKED; 874 start_ccb->ccb_h.ccb_atio = atio; 875 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 876 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 877 io->io_hdr.flags &= ~(CTL_FLAG_DMA_QUEUED | CTL_FLAG_STATUS_QUEUED); 878 879 softc->ctios_sent++; 880 softc->refcount++; 881 cam_periph_unlock(periph); 882 xpt_action(start_ccb); 883 cam_periph_lock(periph); 884 softc->refcount--; 885 886 /* 887 * If we still have work to do, ask for another CCB. 888 */ 889 if (!STAILQ_EMPTY(&softc->work_queue)) 890 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 891} 892 893static void 894ctlfe_drain(void *context, int pending) 895{ 896 struct cam_periph *periph = context; 897 struct ctlfe_lun_softc *softc = periph->softc; 898 899 cam_periph_lock(periph); 900 while (softc->refcount != 0) { 901 cam_periph_sleep(periph, &softc->refcount, PRIBIO, 902 "ctlfe_drain", 1); 903 } 904 cam_periph_unlock(periph); 905 cam_periph_release(periph); 906} 907 908static void 909ctlfe_free_ccb(struct cam_periph *periph, union ccb *ccb) 910{ 911 struct ctlfe_lun_softc *softc; 912 union ctl_io *io; 913 struct ctlfe_cmd_info *cmd_info; 914 915 softc = (struct ctlfe_lun_softc *)periph->softc; 916 io = ccb->ccb_h.io_ptr; 917 918 switch (ccb->ccb_h.func_code) { 919 case XPT_ACCEPT_TARGET_IO: 920 softc->atios_alloced--; 921 cmd_info = PRIV_INFO(io); 922 free(cmd_info, M_CTLFE); 923 break; 924 case XPT_IMMEDIATE_NOTIFY: 925 case XPT_NOTIFY_ACKNOWLEDGE: 926 softc->inots_alloced--; 927 break; 928 default: 929 break; 930 } 931 932 ctl_free_io(io); 933 free(ccb, M_CTLFE); 934 935 KASSERT(softc->atios_alloced >= 0, ("%s: atios_alloced %d < 0", 936 __func__, softc->atios_alloced)); 937 KASSERT(softc->inots_alloced >= 0, ("%s: inots_alloced %d < 0", 938 __func__, softc->inots_alloced)); 939 940 /* 941 * If we have received all of our CCBs, we can release our 942 * reference on the peripheral driver. It will probably go away 943 * now. 944 */ 945 if (softc->atios_alloced == 0 && softc->inots_alloced == 0) { 946 if (softc->refcount == 0) { 947 cam_periph_release_locked(periph); 948 } else { 949 TASK_INIT(&softc->refdrain_task, 0, ctlfe_drain, periph); 950 taskqueue_enqueue(taskqueue_thread, 951 &softc->refdrain_task); 952 } 953 } 954} 955 956/* 957 * Send the ATIO/INOT back to the SIM, or free it if periph was invalidated. 958 */ 959static void 960ctlfe_requeue_ccb(struct cam_periph *periph, union ccb *ccb, int unlock) 961{ 962 struct ctlfe_lun_softc *softc; 963 struct mtx *mtx; 964 965 if (periph->flags & CAM_PERIPH_INVALID) { 966 mtx = cam_periph_mtx(periph); 967 ctlfe_free_ccb(periph, ccb); 968 if (unlock) 969 mtx_unlock(mtx); 970 return; 971 } 972 softc = (struct ctlfe_lun_softc *)periph->softc; 973 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 974 LIST_INSERT_HEAD(&softc->atio_list, &ccb->ccb_h, periph_links.le); 975 else 976 LIST_INSERT_HEAD(&softc->inot_list, &ccb->ccb_h, periph_links.le); 977 if (unlock) 978 cam_periph_unlock(periph); 979 980 /* 981 * For a wildcard attachment, commands can come in with a specific 982 * target/lun. Reset the target and LUN fields back to the wildcard 983 * values before we send them back down to the SIM. 984 */ 985 if (softc->flags & CTLFE_LUN_WILDCARD) { 986 ccb->ccb_h.target_id = CAM_TARGET_WILDCARD; 987 ccb->ccb_h.target_lun = CAM_LUN_WILDCARD; 988 } 989 990 xpt_action(ccb); 991} 992 993static int 994ctlfe_adjust_cdb(struct ccb_accept_tio *atio, uint32_t offset) 995{ 996 uint64_t lba; 997 uint32_t num_blocks, nbc; 998 uint8_t *cmdbyt = atio_cdb_ptr(atio); 999 1000 nbc = offset >> 9; /* ASSUMING 512 BYTE BLOCKS */ 1001 1002 switch (cmdbyt[0]) { 1003 case READ_6: 1004 case WRITE_6: 1005 { 1006 struct scsi_rw_6 *cdb = (struct scsi_rw_6 *)cmdbyt; 1007 lba = scsi_3btoul(cdb->addr); 1008 lba &= 0x1fffff; 1009 num_blocks = cdb->length; 1010 if (num_blocks == 0) 1011 num_blocks = 256; 1012 lba += nbc; 1013 num_blocks -= nbc; 1014 scsi_ulto3b(lba, cdb->addr); 1015 cdb->length = num_blocks; 1016 break; 1017 } 1018 case READ_10: 1019 case WRITE_10: 1020 { 1021 struct scsi_rw_10 *cdb = (struct scsi_rw_10 *)cmdbyt; 1022 lba = scsi_4btoul(cdb->addr); 1023 num_blocks = scsi_2btoul(cdb->length); 1024 lba += nbc; 1025 num_blocks -= nbc; 1026 scsi_ulto4b(lba, cdb->addr); 1027 scsi_ulto2b(num_blocks, cdb->length); 1028 break; 1029 } 1030 case READ_12: 1031 case WRITE_12: 1032 { 1033 struct scsi_rw_12 *cdb = (struct scsi_rw_12 *)cmdbyt; 1034 lba = scsi_4btoul(cdb->addr); 1035 num_blocks = scsi_4btoul(cdb->length); 1036 lba += nbc; 1037 num_blocks -= nbc; 1038 scsi_ulto4b(lba, cdb->addr); 1039 scsi_ulto4b(num_blocks, cdb->length); 1040 break; 1041 } 1042 case READ_16: 1043 case WRITE_16: 1044 { 1045 struct scsi_rw_16 *cdb = (struct scsi_rw_16 *)cmdbyt; 1046 lba = scsi_8btou64(cdb->addr); 1047 num_blocks = scsi_4btoul(cdb->length); 1048 lba += nbc; 1049 num_blocks -= nbc; 1050 scsi_u64to8b(lba, cdb->addr); 1051 scsi_ulto4b(num_blocks, cdb->length); 1052 break; 1053 } 1054 default: 1055 return -1; 1056 } 1057 return (0); 1058} 1059 1060static void 1061ctlfedone(struct cam_periph *periph, union ccb *done_ccb) 1062{ 1063 struct ctlfe_lun_softc *softc; 1064 struct ctlfe_softc *bus_softc; 1065 struct ctlfe_cmd_info *cmd_info; 1066 struct ccb_accept_tio *atio = NULL; 1067 union ctl_io *io = NULL; 1068 struct mtx *mtx; 1069 cam_status status; 1070 1071 KASSERT((done_ccb->ccb_h.flags & CAM_UNLOCKED) != 0, 1072 ("CCB in ctlfedone() without CAM_UNLOCKED flag")); 1073#ifdef CTLFE_DEBUG 1074 printf("%s: entered, func_code = %#x\n", __func__, 1075 done_ccb->ccb_h.func_code); 1076#endif 1077 1078 /* 1079 * At this point CTL has no known use case for device queue freezes. 1080 * In case some SIM think different -- drop its freeze right here. 1081 */ 1082 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1083 cam_release_devq(periph->path, 1084 /*relsim_flags*/0, 1085 /*reduction*/0, 1086 /*timeout*/0, 1087 /*getcount_only*/0); 1088 done_ccb->ccb_h.status &= ~CAM_DEV_QFRZN; 1089 } 1090 1091 softc = (struct ctlfe_lun_softc *)periph->softc; 1092 bus_softc = softc->parent_softc; 1093 mtx = cam_periph_mtx(periph); 1094 mtx_lock(mtx); 1095 1096 switch (done_ccb->ccb_h.func_code) { 1097 case XPT_ACCEPT_TARGET_IO: { 1098 1099 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1100 atio = &done_ccb->atio; 1101 status = atio->ccb_h.status & CAM_STATUS_MASK; 1102 if (status != CAM_CDB_RECVD) { 1103 ctlfe_free_ccb(periph, done_ccb); 1104 goto out; 1105 } 1106 1107 resubmit: 1108 /* 1109 * Allocate a ctl_io, pass it to CTL, and wait for the 1110 * datamove or done. 1111 */ 1112 mtx_unlock(mtx); 1113 io = done_ccb->ccb_h.io_ptr; 1114 cmd_info = PRIV_INFO(io); 1115 ctl_zero_io(io); 1116 1117 /* Save pointers on both sides */ 1118 PRIV_CCB(io) = done_ccb; 1119 PRIV_INFO(io) = cmd_info; 1120 done_ccb->ccb_h.io_ptr = io; 1121 1122 /* 1123 * Only SCSI I/O comes down this path, resets, etc. come 1124 * down the immediate notify path below. 1125 */ 1126 io->io_hdr.io_type = CTL_IO_SCSI; 1127 io->io_hdr.nexus.initid = atio->init_id; 1128 io->io_hdr.nexus.targ_port = bus_softc->port.targ_port; 1129 if (bus_softc->hba_misc & PIM_EXTLUNS) { 1130 io->io_hdr.nexus.targ_lun = ctl_decode_lun( 1131 CAM_EXTLUN_BYTE_SWIZZLE(atio->ccb_h.target_lun)); 1132 } else { 1133 io->io_hdr.nexus.targ_lun = atio->ccb_h.target_lun; 1134 } 1135 io->scsiio.tag_num = atio->tag_id; 1136 switch (atio->tag_action) { 1137 case CAM_TAG_ACTION_NONE: 1138 io->scsiio.tag_type = CTL_TAG_UNTAGGED; 1139 break; 1140 case MSG_SIMPLE_TASK: 1141 io->scsiio.tag_type = CTL_TAG_SIMPLE; 1142 break; 1143 case MSG_HEAD_OF_QUEUE_TASK: 1144 io->scsiio.tag_type = CTL_TAG_HEAD_OF_QUEUE; 1145 break; 1146 case MSG_ORDERED_TASK: 1147 io->scsiio.tag_type = CTL_TAG_ORDERED; 1148 break; 1149 case MSG_ACA_TASK: 1150 io->scsiio.tag_type = CTL_TAG_ACA; 1151 break; 1152 default: 1153 io->scsiio.tag_type = CTL_TAG_UNTAGGED; 1154 printf("%s: unhandled tag type %#x!!\n", __func__, 1155 atio->tag_action); 1156 break; 1157 } 1158 if (atio->cdb_len > sizeof(io->scsiio.cdb)) { 1159 printf("%s: WARNING: CDB len %d > ctl_io space %zd\n", 1160 __func__, atio->cdb_len, sizeof(io->scsiio.cdb)); 1161 } 1162 io->scsiio.cdb_len = min(atio->cdb_len, sizeof(io->scsiio.cdb)); 1163 bcopy(atio_cdb_ptr(atio), io->scsiio.cdb, io->scsiio.cdb_len); 1164 1165#ifdef CTLFEDEBUG 1166 printf("%s: %u:%u:%u: tag %04x CDB %02x\n", __func__, 1167 io->io_hdr.nexus.initid, 1168 io->io_hdr.nexus.targ_port, 1169 io->io_hdr.nexus.targ_lun, 1170 io->scsiio.tag_num, io->scsiio.cdb[0]); 1171#endif 1172 1173 ctl_queue(io); 1174 return; 1175 } 1176 case XPT_CONT_TARGET_IO: { 1177 int srr = 0; 1178 uint32_t srr_off = 0; 1179 1180 atio = (struct ccb_accept_tio *)done_ccb->ccb_h.ccb_atio; 1181 io = (union ctl_io *)atio->ccb_h.io_ptr; 1182 1183 softc->ctios_sent--; 1184#ifdef CTLFEDEBUG 1185 printf("%s: got XPT_CONT_TARGET_IO tag %#x flags %#x\n", 1186 __func__, atio->tag_id, done_ccb->ccb_h.flags); 1187#endif 1188 /* 1189 * Handle SRR case were the data pointer is pushed back hack 1190 */ 1191 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_MESSAGE_RECV 1192 && done_ccb->csio.msg_ptr != NULL 1193 && done_ccb->csio.msg_ptr[0] == MSG_EXTENDED 1194 && done_ccb->csio.msg_ptr[1] == 5 1195 && done_ccb->csio.msg_ptr[2] == 0) { 1196 srr = 1; 1197 srr_off = 1198 (done_ccb->csio.msg_ptr[3] << 24) 1199 | (done_ccb->csio.msg_ptr[4] << 16) 1200 | (done_ccb->csio.msg_ptr[5] << 8) 1201 | (done_ccb->csio.msg_ptr[6]); 1202 } 1203 1204 /* 1205 * If we have an SRR and we're still sending data, we 1206 * should be able to adjust offsets and cycle again. 1207 * It is possible only if offset is from this datamove. 1208 */ 1209 if (srr && (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) && 1210 srr_off >= io->scsiio.kern_rel_offset && 1211 srr_off < io->scsiio.kern_rel_offset + 1212 io->scsiio.kern_data_len) { 1213 io->scsiio.kern_data_resid = 1214 io->scsiio.kern_rel_offset + 1215 io->scsiio.kern_data_len - srr_off; 1216 io->scsiio.ext_data_filled = srr_off; 1217 io->scsiio.io_hdr.status = CTL_STATUS_NONE; 1218 io->io_hdr.flags |= CTL_FLAG_DMA_QUEUED; 1219 xpt_release_ccb(done_ccb); 1220 STAILQ_INSERT_HEAD(&softc->work_queue, &atio->ccb_h, 1221 periph_links.stqe); 1222 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1223 break; 1224 } 1225 1226 /* 1227 * If status was being sent, the back end data is now history. 1228 * Hack it up and resubmit a new command with the CDB adjusted. 1229 * If the SIM does the right thing, all of the resid math 1230 * should work. 1231 */ 1232 if (srr && (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) { 1233 xpt_release_ccb(done_ccb); 1234 if (ctlfe_adjust_cdb(atio, srr_off) == 0) { 1235 done_ccb = (union ccb *)atio; 1236 goto resubmit; 1237 } 1238 /* 1239 * Fall through to doom.... 1240 */ 1241 } 1242 1243 if ((done_ccb->ccb_h.flags & CAM_SEND_STATUS) && 1244 (done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1245 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1246 1247 /* 1248 * If we were sending status back to the initiator, free up 1249 * resources. If we were doing a datamove, call the 1250 * datamove done routine. 1251 */ 1252 if ((io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) { 1253 /* 1254 * If we asked to send sense data but it wasn't sent, 1255 * queue the I/O back to CTL for later REQUEST SENSE. 1256 */ 1257 if ((done_ccb->ccb_h.flags & CAM_SEND_SENSE) != 0 && 1258 (done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 1259 (done_ccb->ccb_h.status & CAM_SENT_SENSE) == 0 && 1260 (io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref)) != NULL) { 1261 PRIV_INFO(io) = PRIV_INFO( 1262 (union ctl_io *)atio->ccb_h.io_ptr); 1263 ctl_queue_sense(atio->ccb_h.io_ptr); 1264 atio->ccb_h.io_ptr = io; 1265 } 1266 1267 /* Abort ATIO if CTIO sending status has failed. */ 1268 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != 1269 CAM_REQ_CMP) { 1270 done_ccb->ccb_h.func_code = XPT_ABORT; 1271 done_ccb->cab.abort_ccb = (union ccb *)atio; 1272 xpt_action(done_ccb); 1273 } 1274 1275 xpt_release_ccb(done_ccb); 1276 ctlfe_requeue_ccb(periph, (union ccb *)atio, 1277 /* unlock */1); 1278 return; 1279 } else { 1280 struct ctlfe_cmd_info *cmd_info; 1281 struct ccb_scsiio *csio; 1282 1283 csio = &done_ccb->csio; 1284 cmd_info = PRIV_INFO(io); 1285 1286 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1287 1288 /* 1289 * Translate CAM status to CTL status. Success 1290 * does not change the overall, ctl_io status. In 1291 * that case we just set port_status to 0. If we 1292 * have a failure, though, set a data phase error 1293 * for the overall ctl_io. 1294 */ 1295 switch (done_ccb->ccb_h.status & CAM_STATUS_MASK) { 1296 case CAM_REQ_CMP: 1297 io->scsiio.kern_data_resid -= 1298 csio->dxfer_len - csio->resid; 1299 io->io_hdr.port_status = 0; 1300 break; 1301 default: 1302 /* 1303 * XXX KDM we probably need to figure out a 1304 * standard set of errors that the SIM 1305 * drivers should return in the event of a 1306 * data transfer failure. A data phase 1307 * error will at least point the user to a 1308 * data transfer error of some sort. 1309 * Hopefully the SIM printed out some 1310 * additional information to give the user 1311 * a clue what happened. 1312 */ 1313 io->io_hdr.port_status = 0xbad1; 1314 ctl_set_data_phase_error(&io->scsiio); 1315 /* 1316 * XXX KDM figure out residual. 1317 */ 1318 break; 1319 } 1320 /* 1321 * If we had to break this S/G list into multiple 1322 * pieces, figure out where we are in the list, and 1323 * continue sending pieces if necessary. 1324 */ 1325 if ((cmd_info->flags & CTLFE_CMD_PIECEWISE) && 1326 io->io_hdr.port_status == 0 && csio->resid == 0) { 1327 ccb_flags flags; 1328 uint8_t *data_ptr; 1329 uint32_t dxfer_len; 1330 1331 flags = atio->ccb_h.flags & 1332 (CAM_DIS_DISCONNECT| 1333 CAM_TAG_ACTION_VALID); 1334 1335 ctlfedata(softc, io, &flags, &data_ptr, 1336 &dxfer_len, &csio->sglist_cnt); 1337 1338 if (((flags & CAM_SEND_STATUS) == 0) 1339 && (dxfer_len == 0)) { 1340 printf("%s: tag %04x no status or " 1341 "len cdb = %02x\n", __func__, 1342 atio->tag_id, 1343 atio_cdb_ptr(atio)[0]); 1344 printf("%s: tag %04x io status %#x\n", 1345 __func__, atio->tag_id, 1346 io->io_hdr.status); 1347 } 1348 1349 cam_fill_ctio(csio, 1350 /*retries*/ 2, 1351 ctlfedone, 1352 flags, 1353 (flags & CAM_TAG_ACTION_VALID) ? 1354 MSG_SIMPLE_Q_TAG : 0, 1355 atio->tag_id, 1356 atio->init_id, 1357 0, 1358 /*data_ptr*/ data_ptr, 1359 /*dxfer_len*/ dxfer_len, 1360 CTLFE_TIMEOUT * 1000); 1361 1362 csio->ccb_h.flags |= CAM_UNLOCKED; 1363 csio->resid = 0; 1364 csio->ccb_h.ccb_atio = atio; 1365 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 1366 softc->ctios_sent++; 1367 mtx_unlock(mtx); 1368 xpt_action((union ccb *)csio); 1369 } else { 1370 /* 1371 * Release the CTIO. The ATIO will be sent back 1372 * down to the SIM once we send status. 1373 */ 1374 xpt_release_ccb(done_ccb); 1375 mtx_unlock(mtx); 1376 1377 /* Call the backend move done callback */ 1378 io->scsiio.be_move_done(io); 1379 } 1380 return; 1381 } 1382 break; 1383 } 1384 case XPT_IMMEDIATE_NOTIFY: { 1385 union ctl_io *io; 1386 struct ccb_immediate_notify *inot; 1387 int send_ctl_io; 1388 1389 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1390 inot = &done_ccb->cin1; 1391 io = done_ccb->ccb_h.io_ptr; 1392 ctl_zero_io(io); 1393 1394 send_ctl_io = 1; 1395 1396 io->io_hdr.io_type = CTL_IO_TASK; 1397 PRIV_CCB(io) = done_ccb; 1398 inot->ccb_h.io_ptr = io; 1399 io->io_hdr.nexus.initid = inot->initiator_id; 1400 io->io_hdr.nexus.targ_port = bus_softc->port.targ_port; 1401 if (bus_softc->hba_misc & PIM_EXTLUNS) { 1402 io->io_hdr.nexus.targ_lun = ctl_decode_lun( 1403 CAM_EXTLUN_BYTE_SWIZZLE(inot->ccb_h.target_lun)); 1404 } else { 1405 io->io_hdr.nexus.targ_lun = inot->ccb_h.target_lun; 1406 } 1407 /* XXX KDM should this be the tag_id? */ 1408 io->taskio.tag_num = inot->seq_id; 1409 1410 status = inot->ccb_h.status & CAM_STATUS_MASK; 1411 switch (status) { 1412 case CAM_SCSI_BUS_RESET: 1413 io->taskio.task_action = CTL_TASK_BUS_RESET; 1414 break; 1415 case CAM_BDR_SENT: 1416 io->taskio.task_action = CTL_TASK_TARGET_RESET; 1417 break; 1418 case CAM_MESSAGE_RECV: 1419 switch (inot->arg) { 1420 case MSG_ABORT_TASK_SET: 1421 io->taskio.task_action = 1422 CTL_TASK_ABORT_TASK_SET; 1423 break; 1424 case MSG_TARGET_RESET: 1425 io->taskio.task_action = CTL_TASK_TARGET_RESET; 1426 break; 1427 case MSG_ABORT_TASK: 1428 io->taskio.task_action = CTL_TASK_ABORT_TASK; 1429 break; 1430 case MSG_LOGICAL_UNIT_RESET: 1431 io->taskio.task_action = CTL_TASK_LUN_RESET; 1432 break; 1433 case MSG_CLEAR_TASK_SET: 1434 io->taskio.task_action = 1435 CTL_TASK_CLEAR_TASK_SET; 1436 break; 1437 case MSG_CLEAR_ACA: 1438 io->taskio.task_action = CTL_TASK_CLEAR_ACA; 1439 break; 1440 case MSG_QUERY_TASK: 1441 io->taskio.task_action = CTL_TASK_QUERY_TASK; 1442 break; 1443 case MSG_QUERY_TASK_SET: 1444 io->taskio.task_action = 1445 CTL_TASK_QUERY_TASK_SET; 1446 break; 1447 case MSG_QUERY_ASYNC_EVENT: 1448 io->taskio.task_action = 1449 CTL_TASK_QUERY_ASYNC_EVENT; 1450 break; 1451 case MSG_NOOP: 1452 send_ctl_io = 0; 1453 break; 1454 default: 1455 xpt_print(periph->path, 1456 "%s: unsupported INOT message 0x%x\n", 1457 __func__, inot->arg); 1458 send_ctl_io = 0; 1459 break; 1460 } 1461 break; 1462 default: 1463 xpt_print(periph->path, 1464 "%s: unsupported INOT status 0x%x\n", 1465 __func__, status); 1466 /* FALLTHROUGH */ 1467 case CAM_REQ_ABORTED: 1468 case CAM_REQ_INVALID: 1469 case CAM_DEV_NOT_THERE: 1470 case CAM_PROVIDE_FAIL: 1471 ctlfe_free_ccb(periph, done_ccb); 1472 goto out; 1473 } 1474 if (send_ctl_io != 0) { 1475 ctl_queue(io); 1476 } else { 1477 done_ccb->ccb_h.status = CAM_REQ_INPROG; 1478 done_ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE; 1479 xpt_action(done_ccb); 1480 } 1481 break; 1482 } 1483 case XPT_NOTIFY_ACKNOWLEDGE: 1484 /* Queue this back down to the SIM as an immediate notify. */ 1485 done_ccb->ccb_h.status = CAM_REQ_INPROG; 1486 done_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY; 1487 ctlfe_requeue_ccb(periph, done_ccb, /* unlock */1); 1488 return; 1489 case XPT_SET_SIM_KNOB: 1490 case XPT_GET_SIM_KNOB: 1491 break; 1492 default: 1493 panic("%s: unexpected CCB type %#x", __func__, 1494 done_ccb->ccb_h.func_code); 1495 break; 1496 } 1497 1498out: 1499 mtx_unlock(mtx); 1500} 1501 1502static void 1503ctlfe_onoffline(void *arg, int online) 1504{ 1505 struct ctlfe_softc *bus_softc; 1506 union ccb *ccb; 1507 cam_status status; 1508 struct cam_path *path; 1509 int set_wwnn; 1510 1511 bus_softc = (struct ctlfe_softc *)arg; 1512 1513 set_wwnn = 0; 1514 1515 status = xpt_create_path(&path, /*periph*/ NULL, bus_softc->path_id, 1516 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 1517 if (status != CAM_REQ_CMP) { 1518 printf("%s: unable to create path!\n", __func__); 1519 return; 1520 } 1521 ccb = xpt_alloc_ccb(); 1522 xpt_setup_ccb(&ccb->ccb_h, path, CAM_PRIORITY_NONE); 1523 ccb->ccb_h.func_code = XPT_GET_SIM_KNOB; 1524 xpt_action(ccb); 1525 1526 /* 1527 * Copan WWN format: 1528 * 1529 * Bits 63-60: 0x5 NAA, IEEE registered name 1530 * Bits 59-36: 0x000ED5 IEEE Company name assigned to Copan 1531 * Bits 35-12: Copan SSN (Sequential Serial Number) 1532 * Bits 11-8: Type of port: 1533 * 1 == N-Port 1534 * 2 == F-Port 1535 * 3 == NL-Port 1536 * Bits 7-0: 0 == Node Name, >0 == Port Number 1537 */ 1538 if (online != 0) { 1539 if ((ccb->knob.xport_specific.valid & KNOB_VALID_ADDRESS) != 0){ 1540 1541 printf("%s: %s current WWNN %#jx\n", __func__, 1542 bus_softc->port_name, 1543 ccb->knob.xport_specific.fc.wwnn); 1544 printf("%s: %s current WWPN %#jx\n", __func__, 1545 bus_softc->port_name, 1546 ccb->knob.xport_specific.fc.wwpn); 1547 1548 /* 1549 * If the user has specified a WWNN/WWPN, send them 1550 * down to the SIM. Otherwise, record what the SIM 1551 * has reported. 1552 */ 1553 if (bus_softc->port.wwnn != 0 && bus_softc->port.wwnn 1554 != ccb->knob.xport_specific.fc.wwnn) { 1555 ccb->knob.xport_specific.fc.wwnn = 1556 bus_softc->port.wwnn; 1557 set_wwnn = 1; 1558 } else { 1559 ctl_port_set_wwns(&bus_softc->port, 1560 true, ccb->knob.xport_specific.fc.wwnn, 1561 false, 0); 1562 } 1563 if (bus_softc->port.wwpn != 0 && bus_softc->port.wwpn 1564 != ccb->knob.xport_specific.fc.wwpn) { 1565 ccb->knob.xport_specific.fc.wwpn = 1566 bus_softc->port.wwpn; 1567 set_wwnn = 1; 1568 } else { 1569 ctl_port_set_wwns(&bus_softc->port, 1570 false, 0, 1571 true, ccb->knob.xport_specific.fc.wwpn); 1572 } 1573 1574 1575 if (set_wwnn != 0) { 1576 printf("%s: %s new WWNN %#jx\n", __func__, 1577 bus_softc->port_name, 1578 ccb->knob.xport_specific.fc.wwnn); 1579 printf("%s: %s new WWPN %#jx\n", __func__, 1580 bus_softc->port_name, 1581 ccb->knob.xport_specific.fc.wwpn); 1582 } 1583 } else { 1584 printf("%s: %s has no valid WWNN/WWPN\n", __func__, 1585 bus_softc->port_name); 1586 } 1587 } 1588 ccb->ccb_h.func_code = XPT_SET_SIM_KNOB; 1589 ccb->knob.xport_specific.valid = KNOB_VALID_ROLE; 1590 if (set_wwnn != 0) 1591 ccb->knob.xport_specific.valid |= KNOB_VALID_ADDRESS; 1592 1593 if (online != 0) 1594 ccb->knob.xport_specific.fc.role |= KNOB_ROLE_TARGET; 1595 else 1596 ccb->knob.xport_specific.fc.role &= ~KNOB_ROLE_TARGET; 1597 1598 xpt_action(ccb); 1599 1600 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1601 printf("%s: SIM %s (path id %d) target %s failed with " 1602 "status %#x\n", 1603 __func__, bus_softc->port_name, bus_softc->path_id, 1604 (online != 0) ? "enable" : "disable", 1605 ccb->ccb_h.status); 1606 } else { 1607 printf("%s: SIM %s (path id %d) target %s succeeded\n", 1608 __func__, bus_softc->port_name, bus_softc->path_id, 1609 (online != 0) ? "enable" : "disable"); 1610 } 1611 1612 xpt_free_path(path); 1613 xpt_free_ccb(ccb); 1614} 1615 1616static void 1617ctlfe_online(void *arg) 1618{ 1619 struct ctlfe_softc *bus_softc; 1620 struct cam_path *path; 1621 cam_status status; 1622 struct ctlfe_lun_softc *lun_softc; 1623 struct cam_periph *periph; 1624 1625 bus_softc = (struct ctlfe_softc *)arg; 1626 1627 /* 1628 * Create the wildcard LUN before bringing the port online. 1629 */ 1630 status = xpt_create_path(&path, /*periph*/ NULL, 1631 bus_softc->path_id, CAM_TARGET_WILDCARD, 1632 CAM_LUN_WILDCARD); 1633 if (status != CAM_REQ_CMP) { 1634 printf("%s: unable to create path for wildcard periph\n", 1635 __func__); 1636 return; 1637 } 1638 1639 lun_softc = malloc(sizeof(*lun_softc), M_CTLFE, M_WAITOK | M_ZERO); 1640 1641 xpt_path_lock(path); 1642 periph = cam_periph_find(path, "ctl"); 1643 if (periph != NULL) { 1644 /* We've already got a periph, no need to alloc a new one. */ 1645 xpt_path_unlock(path); 1646 xpt_free_path(path); 1647 free(lun_softc, M_CTLFE); 1648 return; 1649 } 1650 lun_softc->parent_softc = bus_softc; 1651 lun_softc->flags |= CTLFE_LUN_WILDCARD; 1652 1653 status = cam_periph_alloc(ctlferegister, 1654 ctlfeoninvalidate, 1655 ctlfecleanup, 1656 ctlfestart, 1657 "ctl", 1658 CAM_PERIPH_BIO, 1659 path, 1660 ctlfeasync, 1661 0, 1662 lun_softc); 1663 1664 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1665 const struct cam_status_entry *entry; 1666 1667 entry = cam_fetch_status_entry(status); 1668 printf("%s: CAM error %s (%#x) returned from " 1669 "cam_periph_alloc()\n", __func__, (entry != NULL) ? 1670 entry->status_text : "Unknown", status); 1671 free(lun_softc, M_CTLFE); 1672 } 1673 1674 xpt_path_unlock(path); 1675 ctlfe_onoffline(arg, /*online*/ 1); 1676 xpt_free_path(path); 1677} 1678 1679static void 1680ctlfe_offline(void *arg) 1681{ 1682 struct ctlfe_softc *bus_softc; 1683 struct cam_path *path; 1684 cam_status status; 1685 struct cam_periph *periph; 1686 1687 bus_softc = (struct ctlfe_softc *)arg; 1688 1689 ctlfe_onoffline(arg, /*online*/ 0); 1690 1691 /* 1692 * Disable the wildcard LUN for this port now that we have taken 1693 * the port offline. 1694 */ 1695 status = xpt_create_path(&path, /*periph*/ NULL, 1696 bus_softc->path_id, CAM_TARGET_WILDCARD, 1697 CAM_LUN_WILDCARD); 1698 if (status != CAM_REQ_CMP) { 1699 printf("%s: unable to create path for wildcard periph\n", 1700 __func__); 1701 return; 1702 } 1703 xpt_path_lock(path); 1704 if ((periph = cam_periph_find(path, "ctl")) != NULL) 1705 cam_periph_invalidate(periph); 1706 xpt_path_unlock(path); 1707 xpt_free_path(path); 1708} 1709 1710/* 1711 * This will get called to enable a LUN on every bus that is attached to 1712 * CTL. So we only need to create a path/periph for this particular bus. 1713 */ 1714static int 1715ctlfe_lun_enable(void *arg, int lun_id) 1716{ 1717 struct ctlfe_softc *bus_softc; 1718 struct ctlfe_lun_softc *softc; 1719 struct cam_path *path; 1720 struct cam_periph *periph; 1721 cam_status status; 1722 1723 bus_softc = (struct ctlfe_softc *)arg; 1724 if (bus_softc->hba_misc & PIM_EXTLUNS) 1725 lun_id = CAM_EXTLUN_BYTE_SWIZZLE(ctl_encode_lun(lun_id)); 1726 1727 status = xpt_create_path(&path, /*periph*/ NULL, 1728 bus_softc->path_id, bus_softc->target_id, lun_id); 1729 /* XXX KDM need some way to return status to CTL here? */ 1730 if (status != CAM_REQ_CMP) { 1731 printf("%s: could not create path, status %#x\n", __func__, 1732 status); 1733 return (1); 1734 } 1735 1736 softc = malloc(sizeof(*softc), M_CTLFE, M_WAITOK | M_ZERO); 1737 xpt_path_lock(path); 1738 periph = cam_periph_find(path, "ctl"); 1739 if (periph != NULL) { 1740 /* We've already got a periph, no need to alloc a new one. */ 1741 xpt_path_unlock(path); 1742 xpt_free_path(path); 1743 free(softc, M_CTLFE); 1744 return (0); 1745 } 1746 softc->parent_softc = bus_softc; 1747 1748 status = cam_periph_alloc(ctlferegister, 1749 ctlfeoninvalidate, 1750 ctlfecleanup, 1751 ctlfestart, 1752 "ctl", 1753 CAM_PERIPH_BIO, 1754 path, 1755 ctlfeasync, 1756 0, 1757 softc); 1758 1759 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1760 const struct cam_status_entry *entry; 1761 1762 entry = cam_fetch_status_entry(status); 1763 printf("%s: CAM error %s (%#x) returned from " 1764 "cam_periph_alloc()\n", __func__, (entry != NULL) ? 1765 entry->status_text : "Unknown", status); 1766 free(softc, M_CTLFE); 1767 } 1768 1769 xpt_path_unlock(path); 1770 xpt_free_path(path); 1771 return (0); 1772} 1773 1774/* 1775 * This will get called when the user removes a LUN to disable that LUN 1776 * on every bus that is attached to CTL. 1777 */ 1778static int 1779ctlfe_lun_disable(void *arg, int lun_id) 1780{ 1781 struct ctlfe_softc *softc; 1782 struct ctlfe_lun_softc *lun_softc; 1783 1784 softc = (struct ctlfe_softc *)arg; 1785 if (softc->hba_misc & PIM_EXTLUNS) 1786 lun_id = CAM_EXTLUN_BYTE_SWIZZLE(ctl_encode_lun(lun_id)); 1787 1788 mtx_lock(&softc->lun_softc_mtx); 1789 STAILQ_FOREACH(lun_softc, &softc->lun_softc_list, links) { 1790 struct cam_path *path; 1791 1792 path = lun_softc->periph->path; 1793 1794 if ((xpt_path_target_id(path) == softc->target_id) 1795 && (xpt_path_lun_id(path) == lun_id)) { 1796 break; 1797 } 1798 } 1799 if (lun_softc == NULL) { 1800 mtx_unlock(&softc->lun_softc_mtx); 1801 printf("%s: can't find lun %d\n", __func__, lun_id); 1802 return (1); 1803 } 1804 cam_periph_acquire(lun_softc->periph); 1805 mtx_unlock(&softc->lun_softc_mtx); 1806 1807 cam_periph_lock(lun_softc->periph); 1808 cam_periph_invalidate(lun_softc->periph); 1809 cam_periph_unlock(lun_softc->periph); 1810 cam_periph_release(lun_softc->periph); 1811 return (0); 1812} 1813 1814static void 1815ctlfe_dump_sim(struct cam_sim *sim) 1816{ 1817 1818 printf("%s%d: max tagged openings: %d, max dev openings: %d\n", 1819 sim->sim_name, sim->unit_number, 1820 sim->max_tagged_dev_openings, sim->max_dev_openings); 1821} 1822 1823/* 1824 * Assumes that the SIM lock is held. 1825 */ 1826static void 1827ctlfe_dump_queue(struct ctlfe_lun_softc *softc) 1828{ 1829 struct ccb_hdr *hdr; 1830 struct cam_periph *periph; 1831 int num_items; 1832 1833 periph = softc->periph; 1834 num_items = 0; 1835 1836 STAILQ_FOREACH(hdr, &softc->work_queue, periph_links.stqe) { 1837 union ctl_io *io = hdr->io_ptr; 1838 1839 num_items++; 1840 1841 /* 1842 * Only regular SCSI I/O is put on the work 1843 * queue, so we can print sense here. There may be no 1844 * sense if it's no the queue for a DMA, but this serves to 1845 * print out the CCB as well. 1846 * 1847 * XXX KDM switch this over to scsi_sense_print() when 1848 * CTL is merged in with CAM. 1849 */ 1850 ctl_io_error_print(io, NULL); 1851 1852 /* 1853 * Print DMA status if we are DMA_QUEUED. 1854 */ 1855 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) { 1856 xpt_print(periph->path, 1857 "Total %u, Current %u, Resid %u\n", 1858 io->scsiio.kern_total_len, 1859 io->scsiio.kern_data_len, 1860 io->scsiio.kern_data_resid); 1861 } 1862 } 1863 1864 xpt_print(periph->path, "%d requests waiting for CCBs\n", num_items); 1865 xpt_print(periph->path, "%d CTIOs outstanding\n", softc->ctios_sent); 1866} 1867 1868/* 1869 * Datamove/done routine called by CTL. Put ourselves on the queue to 1870 * receive a CCB from CAM so we can queue the continue I/O request down 1871 * to the adapter. 1872 */ 1873static void 1874ctlfe_datamove(union ctl_io *io) 1875{ 1876 union ccb *ccb; 1877 struct cam_periph *periph; 1878 struct ctlfe_lun_softc *softc; 1879 1880 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 1881 ("Unexpected io_type (%d) in ctlfe_datamove", io->io_hdr.io_type)); 1882 1883 io->scsiio.ext_data_filled = 0; 1884 ccb = PRIV_CCB(io); 1885 periph = xpt_path_periph(ccb->ccb_h.path); 1886 cam_periph_lock(periph); 1887 softc = (struct ctlfe_lun_softc *)periph->softc; 1888 io->io_hdr.flags |= CTL_FLAG_DMA_QUEUED; 1889 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) 1890 io->io_hdr.flags |= CTL_FLAG_STATUS_QUEUED; 1891 STAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h, 1892 periph_links.stqe); 1893 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1894 cam_periph_unlock(periph); 1895} 1896 1897static void 1898ctlfe_done(union ctl_io *io) 1899{ 1900 union ccb *ccb; 1901 struct cam_periph *periph; 1902 struct ctlfe_lun_softc *softc; 1903 1904 ccb = PRIV_CCB(io); 1905 periph = xpt_path_periph(ccb->ccb_h.path); 1906 cam_periph_lock(periph); 1907 softc = (struct ctlfe_lun_softc *)periph->softc; 1908 1909 if (io->io_hdr.io_type == CTL_IO_TASK) { 1910 /* 1911 * Send the notify acknowledge down to the SIM, to let it 1912 * know we processed the task management command. 1913 */ 1914 ccb->ccb_h.status = CAM_REQ_INPROG; 1915 ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE; 1916 switch (io->taskio.task_status) { 1917 case CTL_TASK_FUNCTION_COMPLETE: 1918 ccb->cna2.arg = CAM_RSP_TMF_COMPLETE; 1919 break; 1920 case CTL_TASK_FUNCTION_SUCCEEDED: 1921 ccb->cna2.arg = CAM_RSP_TMF_SUCCEEDED; 1922 ccb->ccb_h.flags |= CAM_SEND_STATUS; 1923 break; 1924 case CTL_TASK_FUNCTION_REJECTED: 1925 ccb->cna2.arg = CAM_RSP_TMF_REJECTED; 1926 ccb->ccb_h.flags |= CAM_SEND_STATUS; 1927 break; 1928 case CTL_TASK_LUN_DOES_NOT_EXIST: 1929 ccb->cna2.arg = CAM_RSP_TMF_INCORRECT_LUN; 1930 ccb->ccb_h.flags |= CAM_SEND_STATUS; 1931 break; 1932 case CTL_TASK_FUNCTION_NOT_SUPPORTED: 1933 ccb->cna2.arg = CAM_RSP_TMF_FAILED; 1934 ccb->ccb_h.flags |= CAM_SEND_STATUS; 1935 break; 1936 } 1937 ccb->cna2.arg |= scsi_3btoul(io->taskio.task_resp) << 8; 1938 xpt_action(ccb); 1939 } else if (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) { 1940 ctlfe_requeue_ccb(periph, ccb, /* unlock */1); 1941 return; 1942 } else { 1943 io->io_hdr.flags |= CTL_FLAG_STATUS_QUEUED; 1944 STAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h, 1945 periph_links.stqe); 1946 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1947 } 1948 1949 cam_periph_unlock(periph); 1950} 1951 1952static void 1953ctlfe_dump(void) 1954{ 1955 struct ctlfe_softc *bus_softc; 1956 struct ctlfe_lun_softc *lun_softc; 1957 1958 STAILQ_FOREACH(bus_softc, &ctlfe_softc_list, links) { 1959 ctlfe_dump_sim(bus_softc->sim); 1960 STAILQ_FOREACH(lun_softc, &bus_softc->lun_softc_list, links) 1961 ctlfe_dump_queue(lun_softc); 1962 } 1963} 1964