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