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 79 struct 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 92 STAILQ_HEAD(, ctlfe_softc) ctlfe_softc_list; 93 struct mtx ctlfe_list_mtx; 94 static char ctlfe_mtx_desc[] = "ctlfelist"; 95 96 typedef enum { 97 CTLFE_LUN_NONE = 0x00, 98 CTLFE_LUN_WILDCARD = 0x01 99 } ctlfe_lun_flags; 100 101 struct 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 }; 115 116 typedef enum { 117 CTLFE_CMD_NONE = 0x00, 118 CTLFE_CMD_PIECEWISE = 0x01 119 } ctlfe_cmd_flags; 120 121 struct 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 165 166 MALLOC_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]) 175 176 static int ctlfeinitialize(void); 177 static int ctlfeshutdown(void); 178 static periph_init_t ctlfeperiphinit; 179 static periph_deinit_t ctlfeperiphdeinit; 180 static void ctlfeasync(void *callback_arg, uint32_t code, 181 struct cam_path *path, void *arg); 182 static periph_ctor_t ctlferegister; 183 static periph_oninv_t ctlfeoninvalidate; 184 static periph_dtor_t ctlfecleanup; 185 static periph_start_t ctlfestart; 186 static void ctlfedone(struct cam_periph *periph, 187 union ccb *done_ccb); 188 189 static void ctlfe_onoffline(void *arg, int online); 190 static void ctlfe_online(void *arg); 191 static void ctlfe_offline(void *arg); 192 static int ctlfe_lun_enable(void *arg, int lun_id); 193 static int ctlfe_lun_disable(void *arg, int lun_id); 194 static void ctlfe_dump_sim(struct cam_sim *sim); 195 static void ctlfe_dump_queue(struct ctlfe_lun_softc *softc); 196 static void ctlfe_datamove(union ctl_io *io); 197 static void ctlfe_done(union ctl_io *io); 198 static void ctlfe_dump(void); 199 static void ctlfe_free_ccb(struct cam_periph *periph, 200 union ccb *ccb); 201 static void ctlfe_requeue_ccb(struct cam_periph *periph, 202 union ccb *ccb, int unlock); 203 204 static 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 }; 211 212 static struct ctl_frontend ctlfe_frontend = 213 { 214 .name = "camtgt", 215 .init = ctlfeinitialize, 216 .fe_dump = ctlfe_dump, 217 .shutdown = ctlfeshutdown, 218 }; 219 CTL_FRONTEND_DECLARE(ctlfe, ctlfe_frontend); 220 221 static int 222 ctlfeinitialize(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 } 230 231 static int 232 ctlfeshutdown(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 } 242 243 static void 244 ctlfeperiphinit(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 } 255 256 static int 257 ctlfeperiphdeinit(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 } 266 267 static void 268 ctlfeasync(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: { 386 387 if (softc != NULL) { 388 /* 389 * XXX KDM are we certain at this point that there 390 * are no outstanding commands for this frontend? 391 */ 392 mtx_lock(&ctlfe_list_mtx); 393 STAILQ_REMOVE(&ctlfe_softc_list, softc, ctlfe_softc, 394 links); 395 mtx_unlock(&ctlfe_list_mtx); 396 ctl_port_deregister(&softc->port); 397 mtx_destroy(&softc->lun_softc_mtx); 398 free(softc, M_CTLFE); 399 } 400 break; 401 } 402 case AC_CONTRACT: { 403 struct ac_contract *ac; 404 405 ac = (struct ac_contract *)arg; 406 407 switch (ac->contract_number) { 408 case AC_CONTRACT_DEV_CHG: { 409 struct ac_device_changed *dev_chg; 410 int retval; 411 412 dev_chg = (struct ac_device_changed *)ac->contract_data; 413 414 printf("%s: WWPN %#jx port 0x%06x path %u target %u %s\n", 415 __func__, dev_chg->wwpn, dev_chg->port, 416 xpt_path_path_id(path), dev_chg->target, 417 (dev_chg->arrived == 0) ? "left" : "arrived"); 418 419 if (softc == NULL) { 420 printf("%s: CTL port for CAM path %u not " 421 "found!\n", __func__, 422 xpt_path_path_id(path)); 423 break; 424 } 425 if (dev_chg->arrived != 0) { 426 retval = ctl_add_initiator(&softc->port, 427 dev_chg->target, dev_chg->wwpn, NULL); 428 } else { 429 retval = ctl_remove_initiator(&softc->port, 430 dev_chg->target); 431 } 432 433 if (retval < 0) { 434 printf("%s: could not %s port %d iid %u " 435 "WWPN %#jx!\n", __func__, 436 (dev_chg->arrived != 0) ? "add" : 437 "remove", softc->port.targ_port, 438 dev_chg->target, 439 (uintmax_t)dev_chg->wwpn); 440 } 441 break; 442 } 443 default: 444 printf("%s: unsupported contract number %ju\n", 445 __func__, (uintmax_t)ac->contract_number); 446 break; 447 } 448 break; 449 } 450 default: 451 break; 452 } 453 } 454 455 static cam_status 456 ctlferegister(struct cam_periph *periph, void *arg) 457 { 458 struct ctlfe_softc *bus_softc; 459 struct ctlfe_lun_softc *softc; 460 union ccb ccb; 461 cam_status status; 462 int i, acstatus; 463 464 softc = (struct ctlfe_lun_softc *)arg; 465 bus_softc = softc->parent_softc; 466 467 STAILQ_INIT(&softc->work_queue); 468 LIST_INIT(&softc->atio_list); 469 LIST_INIT(&softc->inot_list); 470 softc->periph = periph; 471 periph->softc = softc; 472 473 /* Increase device openings to maximum for the SIM. */ 474 if (bus_softc->sim->max_tagged_dev_openings > 475 bus_softc->sim->max_dev_openings) { 476 cam_release_devq(periph->path, 477 /*relsim_flags*/RELSIM_ADJUST_OPENINGS, 478 /*openings*/bus_softc->sim->max_tagged_dev_openings, 479 /*timeout*/0, 480 /*getcount_only*/1); 481 } 482 483 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); 484 ccb.ccb_h.func_code = XPT_EN_LUN; 485 ccb.cel.grp6_len = 0; 486 ccb.cel.grp7_len = 0; 487 ccb.cel.enable = 1; 488 xpt_action(&ccb); 489 status = (ccb.ccb_h.status & CAM_STATUS_MASK); 490 if (status != CAM_REQ_CMP) { 491 xpt_print(periph->path, "%s: Enable LUN failed, status 0x%x\n", 492 __func__, ccb.ccb_h.status); 493 return (status); 494 } 495 496 status = CAM_REQ_CMP; 497 498 for (i = 0; i < CTLFE_ATIO_PER_LUN; i++) { 499 union ccb *new_ccb; 500 union ctl_io *new_io; 501 struct ctlfe_cmd_info *cmd_info; 502 503 new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE, 504 M_ZERO|M_NOWAIT); 505 if (new_ccb == NULL) { 506 status = CAM_RESRC_UNAVAIL; 507 break; 508 } 509 new_io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref); 510 if (new_io == NULL) { 511 free(new_ccb, M_CTLFE); 512 status = CAM_RESRC_UNAVAIL; 513 break; 514 } 515 cmd_info = malloc(sizeof(*cmd_info), M_CTLFE, 516 M_ZERO | M_NOWAIT); 517 if (cmd_info == NULL) { 518 ctl_free_io(new_io); 519 free(new_ccb, M_CTLFE); 520 status = CAM_RESRC_UNAVAIL; 521 break; 522 } 523 PRIV_INFO(new_io) = cmd_info; 524 softc->atios_alloced++; 525 new_ccb->ccb_h.io_ptr = new_io; 526 LIST_INSERT_HEAD(&softc->atio_list, &new_ccb->ccb_h, periph_links.le); 527 528 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, CAM_PRIORITY_NONE); 529 new_ccb->ccb_h.func_code = XPT_ACCEPT_TARGET_IO; 530 new_ccb->ccb_h.cbfcnp = ctlfedone; 531 new_ccb->ccb_h.flags |= CAM_UNLOCKED; 532 xpt_action(new_ccb); 533 status = new_ccb->ccb_h.status; 534 if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 535 free(cmd_info, M_CTLFE); 536 ctl_free_io(new_io); 537 free(new_ccb, M_CTLFE); 538 break; 539 } 540 } 541 542 acstatus = cam_periph_acquire(periph); 543 if (acstatus != 0) { 544 xpt_print(periph->path, "%s: could not acquire reference " 545 "count, status = %#x\n", __func__, acstatus); 546 return (CAM_REQ_CMP_ERR); 547 } 548 549 if (i == 0) { 550 xpt_print(periph->path, "%s: could not allocate ATIO CCBs, " 551 "status 0x%x\n", __func__, status); 552 return (CAM_REQ_CMP_ERR); 553 } 554 555 for (i = 0; i < CTLFE_IN_PER_LUN; i++) { 556 union ccb *new_ccb; 557 union ctl_io *new_io; 558 559 new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE, 560 M_ZERO|M_NOWAIT); 561 if (new_ccb == NULL) { 562 status = CAM_RESRC_UNAVAIL; 563 break; 564 } 565 new_io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref); 566 if (new_io == NULL) { 567 free(new_ccb, M_CTLFE); 568 status = CAM_RESRC_UNAVAIL; 569 break; 570 } 571 softc->inots_alloced++; 572 new_ccb->ccb_h.io_ptr = new_io; 573 LIST_INSERT_HEAD(&softc->inot_list, &new_ccb->ccb_h, periph_links.le); 574 575 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, CAM_PRIORITY_NONE); 576 new_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY; 577 new_ccb->ccb_h.cbfcnp = ctlfedone; 578 new_ccb->ccb_h.flags |= CAM_UNLOCKED; 579 xpt_action(new_ccb); 580 status = new_ccb->ccb_h.status; 581 if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 582 /* 583 * Note that we don't free the CCB here. If the 584 * status is not CAM_REQ_INPROG, then we're 585 * probably talking to a SIM that says it is 586 * target-capable but doesn't support the 587 * XPT_IMMEDIATE_NOTIFY CCB. i.e. it supports the 588 * older API. In that case, it'll call xpt_done() 589 * on the CCB, and we need to free it in our done 590 * routine as a result. 591 */ 592 break; 593 } 594 } 595 if ((i == 0) 596 || (status != CAM_REQ_INPROG)) { 597 xpt_print(periph->path, "%s: could not allocate immediate " 598 "notify CCBs, status 0x%x\n", __func__, status); 599 return (CAM_REQ_CMP_ERR); 600 } 601 mtx_lock(&bus_softc->lun_softc_mtx); 602 STAILQ_INSERT_TAIL(&bus_softc->lun_softc_list, softc, links); 603 mtx_unlock(&bus_softc->lun_softc_mtx); 604 return (CAM_REQ_CMP); 605 } 606 607 static void 608 ctlfeoninvalidate(struct cam_periph *periph) 609 { 610 struct ctlfe_lun_softc *softc = (struct ctlfe_lun_softc *)periph->softc; 611 struct ctlfe_softc *bus_softc; 612 union ccb ccb; 613 struct ccb_hdr *hdr; 614 cam_status status; 615 616 /* Abort all ATIOs and INOTs queued to SIM. */ 617 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); 618 ccb.ccb_h.func_code = XPT_ABORT; 619 LIST_FOREACH(hdr, &softc->atio_list, periph_links.le) { 620 ccb.cab.abort_ccb = (union ccb *)hdr; 621 xpt_action(&ccb); 622 } 623 LIST_FOREACH(hdr, &softc->inot_list, periph_links.le) { 624 ccb.cab.abort_ccb = (union ccb *)hdr; 625 xpt_action(&ccb); 626 } 627 628 /* Disable the LUN in SIM. */ 629 ccb.ccb_h.func_code = XPT_EN_LUN; 630 ccb.cel.grp6_len = 0; 631 ccb.cel.grp7_len = 0; 632 ccb.cel.enable = 0; 633 xpt_action(&ccb); 634 status = (ccb.ccb_h.status & CAM_STATUS_MASK); 635 if (status != CAM_REQ_CMP) { 636 xpt_print(periph->path, "%s: Disable LUN failed, status 0x%x\n", 637 __func__, ccb.ccb_h.status); 638 /* 639 * XXX KDM what do we do now? 640 */ 641 } 642 643 bus_softc = softc->parent_softc; 644 mtx_lock(&bus_softc->lun_softc_mtx); 645 STAILQ_REMOVE(&bus_softc->lun_softc_list, softc, ctlfe_lun_softc, links); 646 mtx_unlock(&bus_softc->lun_softc_mtx); 647 } 648 649 static void 650 ctlfecleanup(struct cam_periph *periph) 651 { 652 struct ctlfe_lun_softc *softc; 653 654 softc = (struct ctlfe_lun_softc *)periph->softc; 655 656 KASSERT(softc->ctios_sent == 0, ("%s: ctios_sent %d != 0", 657 __func__, softc->ctios_sent)); 658 KASSERT(softc->refcount == 0, ("%s: refcount %d != 0", 659 __func__, softc->refcount)); 660 KASSERT(softc->atios_alloced == 0, ("%s: atios_alloced %d != 0", 661 __func__, softc->atios_alloced)); 662 KASSERT(softc->inots_alloced == 0, ("%s: inots_alloced %d != 0", 663 __func__, softc->inots_alloced)); 664 665 free(softc, M_CTLFE); 666 } 667 668 static void 669 ctlfedata(struct ctlfe_lun_softc *softc, union ctl_io *io, 670 ccb_flags *flags, uint8_t **data_ptr, uint32_t *dxfer_len, 671 u_int16_t *sglist_cnt) 672 { 673 struct ctlfe_softc *bus_softc; 674 struct ctlfe_cmd_info *cmd_info; 675 struct ctl_sg_entry *ctl_sglist; 676 bus_dma_segment_t *cam_sglist; 677 size_t off; 678 int i, idx; 679 680 cmd_info = PRIV_INFO(io); 681 bus_softc = softc->parent_softc; 682 683 /* 684 * Set the direction, relative to the initiator. 685 */ 686 *flags &= ~CAM_DIR_MASK; 687 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 688 *flags |= CAM_DIR_IN; 689 else 690 *flags |= CAM_DIR_OUT; 691 692 *flags &= ~CAM_DATA_MASK; 693 idx = cmd_info->cur_transfer_index; 694 off = cmd_info->cur_transfer_off; 695 cmd_info->flags &= ~CTLFE_CMD_PIECEWISE; 696 if (io->scsiio.kern_sg_entries == 0) { /* No S/G list. */ 697 698 /* One time shift for SRR offset. */ 699 off += io->scsiio.ext_data_filled; 700 io->scsiio.ext_data_filled = 0; 701 702 *data_ptr = io->scsiio.kern_data_ptr + off; 703 if (io->scsiio.kern_data_len - off <= bus_softc->maxio) { 704 *dxfer_len = io->scsiio.kern_data_len - off; 705 } else { 706 *dxfer_len = bus_softc->maxio; 707 cmd_info->cur_transfer_off += bus_softc->maxio; 708 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 709 } 710 *sglist_cnt = 0; 711 712 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 713 *flags |= CAM_DATA_PADDR; 714 else 715 *flags |= CAM_DATA_VADDR; 716 } else { /* S/G list with physical or virtual pointers. */ 717 ctl_sglist = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 718 719 /* One time shift for SRR offset. */ 720 while (io->scsiio.ext_data_filled >= ctl_sglist[idx].len - off) { 721 io->scsiio.ext_data_filled -= ctl_sglist[idx].len - off; 722 idx++; 723 off = 0; 724 } 725 off += io->scsiio.ext_data_filled; 726 io->scsiio.ext_data_filled = 0; 727 728 cam_sglist = cmd_info->cam_sglist; 729 *dxfer_len = 0; 730 for (i = 0; i < io->scsiio.kern_sg_entries - idx; i++) { 731 cam_sglist[i].ds_addr = (bus_addr_t)(uintptr_t)ctl_sglist[i + idx].addr + off; 732 if (ctl_sglist[i + idx].len - off <= bus_softc->maxio - *dxfer_len) { 733 cam_sglist[i].ds_len = ctl_sglist[idx + i].len - off; 734 *dxfer_len += cam_sglist[i].ds_len; 735 } else { 736 cam_sglist[i].ds_len = bus_softc->maxio - *dxfer_len; 737 cmd_info->cur_transfer_index = idx + i; 738 cmd_info->cur_transfer_off = cam_sglist[i].ds_len + off; 739 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 740 *dxfer_len += cam_sglist[i].ds_len; 741 if (ctl_sglist[i].len != 0) 742 i++; 743 break; 744 } 745 if (i == (CTLFE_MAX_SEGS - 1) && 746 idx + i < (io->scsiio.kern_sg_entries - 1)) { 747 cmd_info->cur_transfer_index = idx + i + 1; 748 cmd_info->cur_transfer_off = 0; 749 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 750 i++; 751 break; 752 } 753 off = 0; 754 } 755 *sglist_cnt = i; 756 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 757 *flags |= CAM_DATA_SG_PADDR; 758 else 759 *flags |= CAM_DATA_SG; 760 *data_ptr = (uint8_t *)cam_sglist; 761 } 762 } 763 764 static void 765 ctlfestart(struct cam_periph *periph, union ccb *start_ccb) 766 { 767 struct ctlfe_lun_softc *softc; 768 struct ctlfe_cmd_info *cmd_info; 769 struct ccb_hdr *ccb_h; 770 struct ccb_accept_tio *atio; 771 struct ccb_scsiio *csio; 772 uint8_t *data_ptr; 773 uint32_t dxfer_len; 774 ccb_flags flags; 775 union ctl_io *io; 776 uint8_t scsi_status; 777 778 softc = (struct ctlfe_lun_softc *)periph->softc; 779 780 next: 781 /* Take the ATIO off the work queue */ 782 ccb_h = STAILQ_FIRST(&softc->work_queue); 783 if (ccb_h == NULL) { 784 xpt_release_ccb(start_ccb); 785 return; 786 } 787 STAILQ_REMOVE_HEAD(&softc->work_queue, periph_links.stqe); 788 atio = (struct ccb_accept_tio *)ccb_h; 789 io = (union ctl_io *)ccb_h->io_ptr; 790 csio = &start_ccb->csio; 791 792 flags = atio->ccb_h.flags & 793 (CAM_DIS_DISCONNECT|CAM_TAG_ACTION_VALID|CAM_DIR_MASK); 794 cmd_info = PRIV_INFO(io); 795 cmd_info->cur_transfer_index = 0; 796 cmd_info->cur_transfer_off = 0; 797 cmd_info->flags = 0; 798 799 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) { 800 /* 801 * Datamove call, we need to setup the S/G list. 802 */ 803 ctlfedata(softc, io, &flags, &data_ptr, &dxfer_len, 804 &csio->sglist_cnt); 805 } else { 806 /* 807 * We're done, send status back. 808 */ 809 if ((io->io_hdr.flags & CTL_FLAG_ABORT) && 810 (io->io_hdr.flags & CTL_FLAG_ABORT_STATUS) == 0) { 811 io->io_hdr.flags &= ~CTL_FLAG_STATUS_QUEUED; 812 813 /* Tell the SIM that we've aborted this ATIO */ 814 #ifdef CTLFEDEBUG 815 printf("%s: tag %04x abort\n", __func__, atio->tag_id); 816 #endif 817 KASSERT(atio->ccb_h.func_code == XPT_ACCEPT_TARGET_IO, 818 ("func_code %#x is not ATIO", atio->ccb_h.func_code)); 819 start_ccb->ccb_h.func_code = XPT_ABORT; 820 start_ccb->cab.abort_ccb = (union ccb *)atio; 821 xpt_action(start_ccb); 822 823 ctlfe_requeue_ccb(periph, (union ccb *)atio, 824 /* unlock */0); 825 826 /* XPT_ABORT is not queued, so we can take next I/O. */ 827 goto next; 828 } 829 data_ptr = NULL; 830 dxfer_len = 0; 831 csio->sglist_cnt = 0; 832 } 833 scsi_status = 0; 834 if ((io->io_hdr.flags & CTL_FLAG_STATUS_QUEUED) && 835 (cmd_info->flags & CTLFE_CMD_PIECEWISE) == 0 && 836 ((io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) == 0 || 837 io->io_hdr.status == CTL_SUCCESS)) { 838 flags |= CAM_SEND_STATUS; 839 scsi_status = io->scsiio.scsi_status; 840 csio->sense_len = io->scsiio.sense_len; 841 #ifdef CTLFEDEBUG 842 printf("%s: tag %04x status %x\n", __func__, 843 atio->tag_id, io->io_hdr.status); 844 #endif 845 if (csio->sense_len != 0) { 846 csio->sense_data = io->scsiio.sense_data; 847 flags |= CAM_SEND_SENSE; 848 } 849 } 850 851 #ifdef CTLFEDEBUG 852 printf("%s: %s: tag %04x flags %x ptr %p len %u\n", __func__, 853 (flags & CAM_SEND_STATUS) ? "done" : "datamove", 854 atio->tag_id, flags, data_ptr, dxfer_len); 855 #endif 856 857 /* 858 * Valid combinations: 859 * - CAM_SEND_STATUS, CAM_DATA_SG = 0, dxfer_len = 0, 860 * sglist_cnt = 0 861 * - CAM_SEND_STATUS = 0, CAM_DATA_SG = 0, dxfer_len != 0, 862 * sglist_cnt = 0 863 * - CAM_SEND_STATUS = 0, CAM_DATA_SG, dxfer_len != 0, 864 * sglist_cnt != 0 865 */ 866 #ifdef CTLFEDEBUG 867 if (((flags & CAM_SEND_STATUS) 868 && (((flags & CAM_DATA_SG) != 0) 869 || (dxfer_len != 0) 870 || (csio->sglist_cnt != 0))) 871 || (((flags & CAM_SEND_STATUS) == 0) 872 && (dxfer_len == 0)) 873 || ((flags & CAM_DATA_SG) 874 && (csio->sglist_cnt == 0)) 875 || (((flags & CAM_DATA_SG) == 0) 876 && (csio->sglist_cnt != 0))) { 877 printf("%s: tag %04x cdb %02x flags %#x dxfer_len " 878 "%d sg %u\n", __func__, atio->tag_id, 879 atio_cdb_ptr(atio)[0], flags, dxfer_len, 880 csio->sglist_cnt); 881 printf("%s: tag %04x io status %#x\n", __func__, 882 atio->tag_id, io->io_hdr.status); 883 } 884 #endif 885 cam_fill_ctio(csio, 886 /*retries*/ 2, 887 ctlfedone, 888 flags, 889 (flags & CAM_TAG_ACTION_VALID) ? MSG_SIMPLE_Q_TAG : 0, 890 atio->tag_id, 891 atio->init_id, 892 scsi_status, 893 /*data_ptr*/ data_ptr, 894 /*dxfer_len*/ dxfer_len, 895 /*timeout*/ CTLFE_TIMEOUT * 1000); 896 start_ccb->ccb_h.flags |= CAM_UNLOCKED; 897 start_ccb->ccb_h.ccb_atio = atio; 898 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 899 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 900 io->io_hdr.flags &= ~(CTL_FLAG_DMA_QUEUED | CTL_FLAG_STATUS_QUEUED); 901 902 softc->ctios_sent++; 903 softc->refcount++; 904 cam_periph_unlock(periph); 905 xpt_action(start_ccb); 906 cam_periph_lock(periph); 907 softc->refcount--; 908 909 /* 910 * If we still have work to do, ask for another CCB. 911 */ 912 if (!STAILQ_EMPTY(&softc->work_queue)) 913 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 914 } 915 916 static void 917 ctlfe_drain(void *context, int pending) 918 { 919 struct cam_periph *periph = context; 920 struct ctlfe_lun_softc *softc = periph->softc; 921 922 cam_periph_lock(periph); 923 while (softc->refcount != 0) { 924 cam_periph_sleep(periph, &softc->refcount, PRIBIO, 925 "ctlfe_drain", 1); 926 } 927 cam_periph_unlock(periph); 928 cam_periph_release(periph); 929 } 930 931 static void 932 ctlfe_free_ccb(struct cam_periph *periph, union ccb *ccb) 933 { 934 struct ctlfe_lun_softc *softc; 935 union ctl_io *io; 936 struct ctlfe_cmd_info *cmd_info; 937 938 softc = (struct ctlfe_lun_softc *)periph->softc; 939 io = ccb->ccb_h.io_ptr; 940 941 switch (ccb->ccb_h.func_code) { 942 case XPT_ACCEPT_TARGET_IO: 943 softc->atios_alloced--; 944 cmd_info = PRIV_INFO(io); 945 free(cmd_info, M_CTLFE); 946 break; 947 case XPT_IMMEDIATE_NOTIFY: 948 case XPT_NOTIFY_ACKNOWLEDGE: 949 softc->inots_alloced--; 950 break; 951 default: 952 break; 953 } 954 955 ctl_free_io(io); 956 free(ccb, M_CTLFE); 957 958 KASSERT(softc->atios_alloced >= 0, ("%s: atios_alloced %d < 0", 959 __func__, softc->atios_alloced)); 960 KASSERT(softc->inots_alloced >= 0, ("%s: inots_alloced %d < 0", 961 __func__, softc->inots_alloced)); 962 963 /* 964 * If we have received all of our CCBs, we can release our 965 * reference on the peripheral driver. It will probably go away 966 * now. 967 */ 968 if (softc->atios_alloced == 0 && softc->inots_alloced == 0) { 969 if (softc->refcount == 0) { 970 cam_periph_release_locked(periph); 971 } else { 972 TASK_INIT(&softc->refdrain_task, 0, ctlfe_drain, periph); 973 taskqueue_enqueue(taskqueue_thread, 974 &softc->refdrain_task); 975 } 976 } 977 } 978 979 /* 980 * Send the ATIO/INOT back to the SIM, or free it if periph was invalidated. 981 */ 982 static void 983 ctlfe_requeue_ccb(struct cam_periph *periph, union ccb *ccb, int unlock) 984 { 985 struct ctlfe_lun_softc *softc; 986 struct mtx *mtx; 987 988 if (periph->flags & CAM_PERIPH_INVALID) { 989 mtx = cam_periph_mtx(periph); 990 ctlfe_free_ccb(periph, ccb); 991 if (unlock) 992 mtx_unlock(mtx); 993 return; 994 } 995 softc = (struct ctlfe_lun_softc *)periph->softc; 996 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 997 LIST_INSERT_HEAD(&softc->atio_list, &ccb->ccb_h, periph_links.le); 998 else 999 LIST_INSERT_HEAD(&softc->inot_list, &ccb->ccb_h, periph_links.le); 1000 if (unlock) 1001 cam_periph_unlock(periph); 1002 1003 /* 1004 * For a wildcard attachment, commands can come in with a specific 1005 * target/lun. Reset the target and LUN fields back to the wildcard 1006 * values before we send them back down to the SIM. 1007 */ 1008 xpt_setup_ccb_flags(&ccb->ccb_h, periph->path, CAM_PRIORITY_NONE, 1009 ccb->ccb_h.flags); 1010 1011 xpt_action(ccb); 1012 } 1013 1014 static int 1015 ctlfe_adjust_cdb(struct ccb_accept_tio *atio, uint32_t offset) 1016 { 1017 uint64_t lba; 1018 uint32_t num_blocks, nbc; 1019 uint8_t *cmdbyt = atio_cdb_ptr(atio); 1020 1021 nbc = offset >> 9; /* ASSUMING 512 BYTE BLOCKS */ 1022 1023 switch (cmdbyt[0]) { 1024 case READ_6: 1025 case WRITE_6: 1026 { 1027 struct scsi_rw_6 *cdb = (struct scsi_rw_6 *)cmdbyt; 1028 lba = scsi_3btoul(cdb->addr); 1029 lba &= 0x1fffff; 1030 num_blocks = cdb->length; 1031 if (num_blocks == 0) 1032 num_blocks = 256; 1033 lba += nbc; 1034 num_blocks -= nbc; 1035 scsi_ulto3b(lba, cdb->addr); 1036 cdb->length = num_blocks; 1037 break; 1038 } 1039 case READ_10: 1040 case WRITE_10: 1041 { 1042 struct scsi_rw_10 *cdb = (struct scsi_rw_10 *)cmdbyt; 1043 lba = scsi_4btoul(cdb->addr); 1044 num_blocks = scsi_2btoul(cdb->length); 1045 lba += nbc; 1046 num_blocks -= nbc; 1047 scsi_ulto4b(lba, cdb->addr); 1048 scsi_ulto2b(num_blocks, cdb->length); 1049 break; 1050 } 1051 case READ_12: 1052 case WRITE_12: 1053 { 1054 struct scsi_rw_12 *cdb = (struct scsi_rw_12 *)cmdbyt; 1055 lba = scsi_4btoul(cdb->addr); 1056 num_blocks = scsi_4btoul(cdb->length); 1057 lba += nbc; 1058 num_blocks -= nbc; 1059 scsi_ulto4b(lba, cdb->addr); 1060 scsi_ulto4b(num_blocks, cdb->length); 1061 break; 1062 } 1063 case READ_16: 1064 case WRITE_16: 1065 { 1066 struct scsi_rw_16 *cdb = (struct scsi_rw_16 *)cmdbyt; 1067 lba = scsi_8btou64(cdb->addr); 1068 num_blocks = scsi_4btoul(cdb->length); 1069 lba += nbc; 1070 num_blocks -= nbc; 1071 scsi_u64to8b(lba, cdb->addr); 1072 scsi_ulto4b(num_blocks, cdb->length); 1073 break; 1074 } 1075 default: 1076 return -1; 1077 } 1078 return (0); 1079 } 1080 1081 static void 1082 ctlfedone(struct cam_periph *periph, union ccb *done_ccb) 1083 { 1084 struct ctlfe_lun_softc *softc; 1085 struct ctlfe_softc *bus_softc; 1086 struct ctlfe_cmd_info *cmd_info; 1087 struct ccb_accept_tio *atio = NULL; 1088 union ctl_io *io = NULL; 1089 struct mtx *mtx; 1090 cam_status status; 1091 1092 KASSERT((done_ccb->ccb_h.flags & CAM_UNLOCKED) != 0, 1093 ("CCB in ctlfedone() without CAM_UNLOCKED flag")); 1094 #ifdef CTLFE_DEBUG 1095 printf("%s: entered, func_code = %#x\n", __func__, 1096 done_ccb->ccb_h.func_code); 1097 #endif 1098 1099 /* 1100 * At this point CTL has no known use case for device queue freezes. 1101 * In case some SIM think different -- drop its freeze right here. 1102 */ 1103 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1104 cam_release_devq(periph->path, 1105 /*relsim_flags*/0, 1106 /*reduction*/0, 1107 /*timeout*/0, 1108 /*getcount_only*/0); 1109 done_ccb->ccb_h.status &= ~CAM_DEV_QFRZN; 1110 } 1111 1112 softc = (struct ctlfe_lun_softc *)periph->softc; 1113 bus_softc = softc->parent_softc; 1114 mtx = cam_periph_mtx(periph); 1115 mtx_lock(mtx); 1116 1117 switch (done_ccb->ccb_h.func_code) { 1118 case XPT_ACCEPT_TARGET_IO: { 1119 1120 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1121 atio = &done_ccb->atio; 1122 status = atio->ccb_h.status & CAM_STATUS_MASK; 1123 if (status != CAM_CDB_RECVD) { 1124 ctlfe_free_ccb(periph, done_ccb); 1125 goto out; 1126 } 1127 1128 resubmit: 1129 /* 1130 * Allocate a ctl_io, pass it to CTL, and wait for the 1131 * datamove or done. 1132 */ 1133 mtx_unlock(mtx); 1134 io = done_ccb->ccb_h.io_ptr; 1135 cmd_info = PRIV_INFO(io); 1136 ctl_zero_io(io); 1137 1138 /* Save pointers on both sides */ 1139 PRIV_CCB(io) = done_ccb; 1140 PRIV_INFO(io) = cmd_info; 1141 done_ccb->ccb_h.io_ptr = io; 1142 1143 /* 1144 * Only SCSI I/O comes down this path, resets, etc. come 1145 * down the immediate notify path below. 1146 */ 1147 io->io_hdr.io_type = CTL_IO_SCSI; 1148 io->io_hdr.nexus.initid = atio->init_id; 1149 io->io_hdr.nexus.targ_port = bus_softc->port.targ_port; 1150 if (bus_softc->hba_misc & PIM_EXTLUNS) { 1151 io->io_hdr.nexus.targ_lun = ctl_decode_lun( 1152 CAM_EXTLUN_BYTE_SWIZZLE(atio->ccb_h.target_lun)); 1153 } else { 1154 io->io_hdr.nexus.targ_lun = atio->ccb_h.target_lun; 1155 } 1156 io->scsiio.tag_num = atio->tag_id; 1157 switch (atio->tag_action) { 1158 case CAM_TAG_ACTION_NONE: 1159 io->scsiio.tag_type = CTL_TAG_UNTAGGED; 1160 break; 1161 case MSG_SIMPLE_TASK: 1162 io->scsiio.tag_type = CTL_TAG_SIMPLE; 1163 break; 1164 case MSG_HEAD_OF_QUEUE_TASK: 1165 io->scsiio.tag_type = CTL_TAG_HEAD_OF_QUEUE; 1166 break; 1167 case MSG_ORDERED_TASK: 1168 io->scsiio.tag_type = CTL_TAG_ORDERED; 1169 break; 1170 case MSG_ACA_TASK: 1171 io->scsiio.tag_type = CTL_TAG_ACA; 1172 break; 1173 default: 1174 io->scsiio.tag_type = CTL_TAG_UNTAGGED; 1175 printf("%s: unhandled tag type %#x!!\n", __func__, 1176 atio->tag_action); 1177 break; 1178 } 1179 if (atio->cdb_len > sizeof(io->scsiio.cdb)) { 1180 printf("%s: WARNING: CDB len %d > ctl_io space %zd\n", 1181 __func__, atio->cdb_len, sizeof(io->scsiio.cdb)); 1182 } 1183 io->scsiio.cdb_len = min(atio->cdb_len, sizeof(io->scsiio.cdb)); 1184 bcopy(atio_cdb_ptr(atio), io->scsiio.cdb, io->scsiio.cdb_len); 1185 1186 #ifdef CTLFEDEBUG 1187 printf("%s: %u:%u:%u: tag %04x CDB %02x\n", __func__, 1188 io->io_hdr.nexus.initid, 1189 io->io_hdr.nexus.targ_port, 1190 io->io_hdr.nexus.targ_lun, 1191 io->scsiio.tag_num, io->scsiio.cdb[0]); 1192 #endif 1193 1194 ctl_queue(io); 1195 return; 1196 } 1197 case XPT_CONT_TARGET_IO: { 1198 int srr = 0; 1199 uint32_t srr_off = 0; 1200 1201 atio = (struct ccb_accept_tio *)done_ccb->ccb_h.ccb_atio; 1202 io = (union ctl_io *)atio->ccb_h.io_ptr; 1203 1204 softc->ctios_sent--; 1205 #ifdef CTLFEDEBUG 1206 printf("%s: got XPT_CONT_TARGET_IO tag %#x flags %#x\n", 1207 __func__, atio->tag_id, done_ccb->ccb_h.flags); 1208 #endif 1209 /* 1210 * Handle SRR case were the data pointer is pushed back hack 1211 */ 1212 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_MESSAGE_RECV 1213 && done_ccb->csio.msg_ptr != NULL 1214 && done_ccb->csio.msg_ptr[0] == MSG_EXTENDED 1215 && done_ccb->csio.msg_ptr[1] == 5 1216 && done_ccb->csio.msg_ptr[2] == 0) { 1217 srr = 1; 1218 srr_off = 1219 (done_ccb->csio.msg_ptr[3] << 24) 1220 | (done_ccb->csio.msg_ptr[4] << 16) 1221 | (done_ccb->csio.msg_ptr[5] << 8) 1222 | (done_ccb->csio.msg_ptr[6]); 1223 } 1224 1225 /* 1226 * If we have an SRR and we're still sending data, we 1227 * should be able to adjust offsets and cycle again. 1228 * It is possible only if offset is from this datamove. 1229 */ 1230 if (srr && (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) && 1231 srr_off >= io->scsiio.kern_rel_offset && 1232 srr_off < io->scsiio.kern_rel_offset + 1233 io->scsiio.kern_data_len) { 1234 io->scsiio.kern_data_resid = 1235 io->scsiio.kern_rel_offset + 1236 io->scsiio.kern_data_len - srr_off; 1237 io->scsiio.ext_data_filled = srr_off; 1238 io->scsiio.io_hdr.status = CTL_STATUS_NONE; 1239 io->io_hdr.flags |= CTL_FLAG_DMA_QUEUED; 1240 xpt_release_ccb(done_ccb); 1241 STAILQ_INSERT_HEAD(&softc->work_queue, &atio->ccb_h, 1242 periph_links.stqe); 1243 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1244 break; 1245 } 1246 1247 /* 1248 * If status was being sent, the back end data is now history. 1249 * Hack it up and resubmit a new command with the CDB adjusted. 1250 * If the SIM does the right thing, all of the resid math 1251 * should work. 1252 */ 1253 if (srr && (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) { 1254 xpt_release_ccb(done_ccb); 1255 if (ctlfe_adjust_cdb(atio, srr_off) == 0) { 1256 done_ccb = (union ccb *)atio; 1257 goto resubmit; 1258 } 1259 /* 1260 * Fall through to doom.... 1261 */ 1262 } 1263 1264 if ((done_ccb->ccb_h.flags & CAM_SEND_STATUS) && 1265 (done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1266 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1267 1268 /* 1269 * If we were sending status back to the initiator, free up 1270 * resources. If we were doing a datamove, call the 1271 * datamove done routine. 1272 */ 1273 if ((io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) { 1274 /* 1275 * If we asked to send sense data but it wasn't sent, 1276 * queue the I/O back to CTL for later REQUEST SENSE. 1277 */ 1278 if ((done_ccb->ccb_h.flags & CAM_SEND_SENSE) != 0 && 1279 (done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 1280 (done_ccb->ccb_h.status & CAM_SENT_SENSE) == 0 && 1281 (io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref)) != NULL) { 1282 PRIV_INFO(io) = PRIV_INFO( 1283 (union ctl_io *)atio->ccb_h.io_ptr); 1284 ctl_queue_sense(atio->ccb_h.io_ptr); 1285 atio->ccb_h.io_ptr = io; 1286 } 1287 1288 /* Abort ATIO if CTIO sending status has failed. */ 1289 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != 1290 CAM_REQ_CMP) { 1291 done_ccb->ccb_h.func_code = XPT_ABORT; 1292 done_ccb->cab.abort_ccb = (union ccb *)atio; 1293 xpt_action(done_ccb); 1294 } 1295 1296 xpt_release_ccb(done_ccb); 1297 ctlfe_requeue_ccb(periph, (union ccb *)atio, 1298 /* unlock */1); 1299 return; 1300 } else { 1301 struct ctlfe_cmd_info *cmd_info; 1302 struct ccb_scsiio *csio; 1303 1304 csio = &done_ccb->csio; 1305 cmd_info = PRIV_INFO(io); 1306 1307 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1308 1309 /* 1310 * Translate CAM status to CTL status. Success 1311 * does not change the overall, ctl_io status. In 1312 * that case we just set port_status to 0. If we 1313 * have a failure, though, set a data phase error 1314 * for the overall ctl_io. 1315 */ 1316 switch (done_ccb->ccb_h.status & CAM_STATUS_MASK) { 1317 case CAM_REQ_CMP: 1318 io->scsiio.kern_data_resid -= 1319 csio->dxfer_len - csio->resid; 1320 io->io_hdr.port_status = 0; 1321 break; 1322 default: 1323 /* 1324 * XXX KDM we probably need to figure out a 1325 * standard set of errors that the SIM 1326 * drivers should return in the event of a 1327 * data transfer failure. A data phase 1328 * error will at least point the user to a 1329 * data transfer error of some sort. 1330 * Hopefully the SIM printed out some 1331 * additional information to give the user 1332 * a clue what happened. 1333 */ 1334 io->io_hdr.port_status = 0xbad1; 1335 ctl_set_data_phase_error(&io->scsiio); 1336 /* 1337 * XXX KDM figure out residual. 1338 */ 1339 break; 1340 } 1341 /* 1342 * If we had to break this S/G list into multiple 1343 * pieces, figure out where we are in the list, and 1344 * continue sending pieces if necessary. 1345 */ 1346 if ((cmd_info->flags & CTLFE_CMD_PIECEWISE) && 1347 io->io_hdr.port_status == 0 && csio->resid == 0) { 1348 ccb_flags flags; 1349 uint8_t *data_ptr; 1350 uint32_t dxfer_len; 1351 1352 flags = atio->ccb_h.flags & 1353 (CAM_DIS_DISCONNECT| 1354 CAM_TAG_ACTION_VALID); 1355 1356 ctlfedata(softc, io, &flags, &data_ptr, 1357 &dxfer_len, &csio->sglist_cnt); 1358 1359 if (((flags & CAM_SEND_STATUS) == 0) 1360 && (dxfer_len == 0)) { 1361 printf("%s: tag %04x no status or " 1362 "len cdb = %02x\n", __func__, 1363 atio->tag_id, 1364 atio_cdb_ptr(atio)[0]); 1365 printf("%s: tag %04x io status %#x\n", 1366 __func__, atio->tag_id, 1367 io->io_hdr.status); 1368 } 1369 1370 cam_fill_ctio(csio, 1371 /*retries*/ 2, 1372 ctlfedone, 1373 flags, 1374 (flags & CAM_TAG_ACTION_VALID) ? 1375 MSG_SIMPLE_Q_TAG : 0, 1376 atio->tag_id, 1377 atio->init_id, 1378 0, 1379 /*data_ptr*/ data_ptr, 1380 /*dxfer_len*/ dxfer_len, 1381 CTLFE_TIMEOUT * 1000); 1382 1383 csio->ccb_h.flags |= CAM_UNLOCKED; 1384 csio->resid = 0; 1385 csio->ccb_h.ccb_atio = atio; 1386 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 1387 softc->ctios_sent++; 1388 mtx_unlock(mtx); 1389 xpt_action((union ccb *)csio); 1390 } else { 1391 /* 1392 * Release the CTIO. The ATIO will be sent back 1393 * down to the SIM once we send status. 1394 */ 1395 xpt_release_ccb(done_ccb); 1396 mtx_unlock(mtx); 1397 1398 /* Call the backend move done callback */ 1399 io->scsiio.be_move_done(io); 1400 } 1401 return; 1402 } 1403 break; 1404 } 1405 case XPT_IMMEDIATE_NOTIFY: { 1406 union ctl_io *io; 1407 struct ccb_immediate_notify *inot; 1408 int send_ctl_io; 1409 1410 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1411 inot = &done_ccb->cin1; 1412 io = done_ccb->ccb_h.io_ptr; 1413 ctl_zero_io(io); 1414 1415 send_ctl_io = 1; 1416 1417 io->io_hdr.io_type = CTL_IO_TASK; 1418 PRIV_CCB(io) = done_ccb; 1419 inot->ccb_h.io_ptr = io; 1420 io->io_hdr.nexus.initid = inot->initiator_id; 1421 io->io_hdr.nexus.targ_port = bus_softc->port.targ_port; 1422 if (bus_softc->hba_misc & PIM_EXTLUNS) { 1423 io->io_hdr.nexus.targ_lun = ctl_decode_lun( 1424 CAM_EXTLUN_BYTE_SWIZZLE(inot->ccb_h.target_lun)); 1425 } else { 1426 io->io_hdr.nexus.targ_lun = inot->ccb_h.target_lun; 1427 } 1428 /* XXX KDM should this be the tag_id? */ 1429 io->taskio.tag_num = inot->seq_id; 1430 1431 status = inot->ccb_h.status & CAM_STATUS_MASK; 1432 switch (status) { 1433 case CAM_SCSI_BUS_RESET: 1434 io->taskio.task_action = CTL_TASK_BUS_RESET; 1435 break; 1436 case CAM_BDR_SENT: 1437 io->taskio.task_action = CTL_TASK_TARGET_RESET; 1438 break; 1439 case CAM_MESSAGE_RECV: 1440 switch (inot->arg) { 1441 case MSG_ABORT_TASK_SET: 1442 io->taskio.task_action = 1443 CTL_TASK_ABORT_TASK_SET; 1444 break; 1445 case MSG_TARGET_RESET: 1446 io->taskio.task_action = CTL_TASK_TARGET_RESET; 1447 break; 1448 case MSG_ABORT_TASK: 1449 io->taskio.task_action = CTL_TASK_ABORT_TASK; 1450 break; 1451 case MSG_LOGICAL_UNIT_RESET: 1452 io->taskio.task_action = CTL_TASK_LUN_RESET; 1453 break; 1454 case MSG_CLEAR_TASK_SET: 1455 io->taskio.task_action = 1456 CTL_TASK_CLEAR_TASK_SET; 1457 break; 1458 case MSG_CLEAR_ACA: 1459 io->taskio.task_action = CTL_TASK_CLEAR_ACA; 1460 break; 1461 case MSG_QUERY_TASK: 1462 io->taskio.task_action = CTL_TASK_QUERY_TASK; 1463 break; 1464 case MSG_QUERY_TASK_SET: 1465 io->taskio.task_action = 1466 CTL_TASK_QUERY_TASK_SET; 1467 break; 1468 case MSG_QUERY_ASYNC_EVENT: 1469 io->taskio.task_action = 1470 CTL_TASK_QUERY_ASYNC_EVENT; 1471 break; 1472 case MSG_NOOP: 1473 send_ctl_io = 0; 1474 break; 1475 default: 1476 xpt_print(periph->path, 1477 "%s: unsupported INOT message 0x%x\n", 1478 __func__, inot->arg); 1479 send_ctl_io = 0; 1480 break; 1481 } 1482 break; 1483 default: 1484 xpt_print(periph->path, 1485 "%s: unsupported INOT status 0x%x\n", 1486 __func__, status); 1487 /* FALLTHROUGH */ 1488 case CAM_REQ_ABORTED: 1489 case CAM_REQ_INVALID: 1490 case CAM_DEV_NOT_THERE: 1491 case CAM_PROVIDE_FAIL: 1492 ctlfe_free_ccb(periph, done_ccb); 1493 goto out; 1494 } 1495 if (send_ctl_io != 0) { 1496 ctl_queue(io); 1497 } else { 1498 done_ccb->ccb_h.status = CAM_REQ_INPROG; 1499 done_ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE; 1500 xpt_action(done_ccb); 1501 } 1502 break; 1503 } 1504 case XPT_NOTIFY_ACKNOWLEDGE: 1505 /* Queue this back down to the SIM as an immediate notify. */ 1506 done_ccb->ccb_h.status = CAM_REQ_INPROG; 1507 done_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY; 1508 ctlfe_requeue_ccb(periph, done_ccb, /* unlock */1); 1509 return; 1510 case XPT_SET_SIM_KNOB: 1511 case XPT_GET_SIM_KNOB: 1512 case XPT_GET_SIM_KNOB_OLD: 1513 break; 1514 default: 1515 panic("%s: unexpected CCB type %#x", __func__, 1516 done_ccb->ccb_h.func_code); 1517 break; 1518 } 1519 1520 out: 1521 mtx_unlock(mtx); 1522 } 1523 1524 static void 1525 ctlfe_onoffline(void *arg, int online) 1526 { 1527 struct ctlfe_softc *bus_softc = arg; 1528 union ccb *ccb; 1529 cam_status status; 1530 struct cam_path *path; 1531 int set_wwnn = 0; 1532 1533 status = xpt_create_path(&path, /*periph*/ NULL, bus_softc->path_id, 1534 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 1535 if (status != CAM_REQ_CMP) { 1536 printf("%s: unable to create path!\n", __func__); 1537 return; 1538 } 1539 ccb = xpt_alloc_ccb(); 1540 xpt_setup_ccb(&ccb->ccb_h, path, CAM_PRIORITY_NONE); 1541 ccb->ccb_h.func_code = XPT_GET_SIM_KNOB; 1542 xpt_action(ccb); 1543 1544 /* Check whether we should change WWNs. */ 1545 if (online != 0) { 1546 if ((ccb->knob.xport_specific.valid & KNOB_VALID_ADDRESS) != 0){ 1547 printf("%s: %s current WWNN %#jx\n", __func__, 1548 bus_softc->port_name, 1549 ccb->knob.xport_specific.fc.wwnn); 1550 printf("%s: %s current WWPN %#jx\n", __func__, 1551 bus_softc->port_name, 1552 ccb->knob.xport_specific.fc.wwpn); 1553 1554 /* 1555 * If the user has specified a WWNN/WWPN, send them 1556 * down to the SIM. Otherwise, record what the SIM 1557 * has reported. 1558 */ 1559 if (bus_softc->port.wwnn != 0 && bus_softc->port.wwnn 1560 != ccb->knob.xport_specific.fc.wwnn) { 1561 ccb->knob.xport_specific.fc.wwnn = 1562 bus_softc->port.wwnn; 1563 set_wwnn = 1; 1564 } else { 1565 ctl_port_set_wwns(&bus_softc->port, 1566 true, ccb->knob.xport_specific.fc.wwnn, 1567 false, 0); 1568 } 1569 if (bus_softc->port.wwpn != 0 && bus_softc->port.wwpn 1570 != ccb->knob.xport_specific.fc.wwpn) { 1571 ccb->knob.xport_specific.fc.wwpn = 1572 bus_softc->port.wwpn; 1573 set_wwnn = 1; 1574 } else { 1575 ctl_port_set_wwns(&bus_softc->port, 1576 false, 0, 1577 true, ccb->knob.xport_specific.fc.wwpn); 1578 } 1579 } else { 1580 printf("%s: %s has no valid WWNN/WWPN\n", __func__, 1581 bus_softc->port_name); 1582 if (bus_softc->port.wwnn != 0) { 1583 ccb->knob.xport_specific.fc.wwnn = 1584 bus_softc->port.wwnn; 1585 set_wwnn = 1; 1586 } 1587 if (bus_softc->port.wwpn != 0) { 1588 ccb->knob.xport_specific.fc.wwpn = 1589 bus_softc->port.wwpn; 1590 set_wwnn = 1; 1591 } 1592 } 1593 } 1594 if (set_wwnn) { 1595 ccb->ccb_h.func_code = XPT_SET_SIM_KNOB; 1596 ccb->knob.xport_specific.valid = KNOB_VALID_ADDRESS; 1597 xpt_action(ccb); 1598 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1599 printf("%s: %s (path id %d) failed set WWNs: %#x\n", 1600 __func__, bus_softc->port_name, bus_softc->path_id, 1601 ccb->ccb_h.status); 1602 } else { 1603 printf("%s: %s new WWNN %#jx\n", __func__, 1604 bus_softc->port_name, 1605 ccb->knob.xport_specific.fc.wwnn); 1606 printf("%s: %s new WWPN %#jx\n", __func__, 1607 bus_softc->port_name, 1608 ccb->knob.xport_specific.fc.wwpn); 1609 } 1610 } 1611 1612 /* Check whether we should change role. */ 1613 if ((ccb->knob.xport_specific.valid & KNOB_VALID_ROLE) == 0 || 1614 ((online != 0) ^ 1615 ((ccb->knob.xport_specific.fc.role & KNOB_ROLE_TARGET) != 0)) != 0) { 1616 ccb->ccb_h.func_code = XPT_SET_SIM_KNOB; 1617 ccb->knob.xport_specific.valid = KNOB_VALID_ROLE; 1618 if (online) 1619 ccb->knob.xport_specific.fc.role |= KNOB_ROLE_TARGET; 1620 else 1621 ccb->knob.xport_specific.fc.role &= ~KNOB_ROLE_TARGET; 1622 xpt_action(ccb); 1623 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1624 printf("%s: %s (path id %d) failed %s target role: %#x\n", 1625 __func__, bus_softc->port_name, bus_softc->path_id, 1626 online ? "enable" : "disable", ccb->ccb_h.status); 1627 } else { 1628 printf("%s: %s (path id %d) target role %s succeeded\n", 1629 __func__, bus_softc->port_name, bus_softc->path_id, 1630 online ? "enable" : "disable"); 1631 } 1632 } 1633 1634 xpt_free_path(path); 1635 xpt_free_ccb(ccb); 1636 } 1637 1638 static void 1639 ctlfe_online(void *arg) 1640 { 1641 struct ctlfe_softc *bus_softc; 1642 struct cam_path *path; 1643 cam_status status; 1644 struct ctlfe_lun_softc *lun_softc; 1645 struct cam_periph *periph; 1646 1647 bus_softc = (struct ctlfe_softc *)arg; 1648 1649 /* 1650 * Create the wildcard LUN before bringing the port online. 1651 */ 1652 status = xpt_create_path(&path, /*periph*/ NULL, 1653 bus_softc->path_id, CAM_TARGET_WILDCARD, 1654 CAM_LUN_WILDCARD); 1655 if (status != CAM_REQ_CMP) { 1656 printf("%s: unable to create path for wildcard periph\n", 1657 __func__); 1658 return; 1659 } 1660 1661 lun_softc = malloc(sizeof(*lun_softc), M_CTLFE, M_WAITOK | M_ZERO); 1662 1663 xpt_path_lock(path); 1664 periph = cam_periph_find(path, "ctl"); 1665 if (periph != NULL) { 1666 /* We've already got a periph, no need to alloc a new one. */ 1667 xpt_path_unlock(path); 1668 xpt_free_path(path); 1669 free(lun_softc, M_CTLFE); 1670 return; 1671 } 1672 lun_softc->parent_softc = bus_softc; 1673 lun_softc->flags |= CTLFE_LUN_WILDCARD; 1674 1675 status = cam_periph_alloc(ctlferegister, 1676 ctlfeoninvalidate, 1677 ctlfecleanup, 1678 ctlfestart, 1679 "ctl", 1680 CAM_PERIPH_BIO, 1681 path, 1682 ctlfeasync, 1683 0, 1684 lun_softc); 1685 1686 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1687 const struct cam_status_entry *entry; 1688 1689 entry = cam_fetch_status_entry(status); 1690 printf("%s: CAM error %s (%#x) returned from " 1691 "cam_periph_alloc()\n", __func__, (entry != NULL) ? 1692 entry->status_text : "Unknown", status); 1693 free(lun_softc, M_CTLFE); 1694 } 1695 1696 xpt_path_unlock(path); 1697 ctlfe_onoffline(arg, /*online*/ 1); 1698 xpt_free_path(path); 1699 } 1700 1701 static void 1702 ctlfe_offline(void *arg) 1703 { 1704 struct ctlfe_softc *bus_softc; 1705 struct cam_path *path; 1706 cam_status status; 1707 struct cam_periph *periph; 1708 1709 bus_softc = (struct ctlfe_softc *)arg; 1710 1711 ctlfe_onoffline(arg, /*online*/ 0); 1712 1713 /* 1714 * Disable the wildcard LUN for this port now that we have taken 1715 * the port offline. 1716 */ 1717 status = xpt_create_path(&path, /*periph*/ NULL, 1718 bus_softc->path_id, CAM_TARGET_WILDCARD, 1719 CAM_LUN_WILDCARD); 1720 if (status != CAM_REQ_CMP) { 1721 printf("%s: unable to create path for wildcard periph\n", 1722 __func__); 1723 return; 1724 } 1725 xpt_path_lock(path); 1726 if ((periph = cam_periph_find(path, "ctl")) != NULL) 1727 cam_periph_invalidate(periph); 1728 xpt_path_unlock(path); 1729 xpt_free_path(path); 1730 } 1731 1732 /* 1733 * This will get called to enable a LUN on every bus that is attached to 1734 * CTL. So we only need to create a path/periph for this particular bus. 1735 */ 1736 static int 1737 ctlfe_lun_enable(void *arg, int lun_id) 1738 { 1739 struct ctlfe_softc *bus_softc; 1740 struct ctlfe_lun_softc *softc; 1741 struct cam_path *path; 1742 struct cam_periph *periph; 1743 cam_status status; 1744 1745 bus_softc = (struct ctlfe_softc *)arg; 1746 if (bus_softc->hba_misc & PIM_EXTLUNS) 1747 lun_id = CAM_EXTLUN_BYTE_SWIZZLE(ctl_encode_lun(lun_id)); 1748 1749 status = xpt_create_path(&path, /*periph*/ NULL, 1750 bus_softc->path_id, bus_softc->target_id, lun_id); 1751 /* XXX KDM need some way to return status to CTL here? */ 1752 if (status != CAM_REQ_CMP) { 1753 printf("%s: could not create path, status %#x\n", __func__, 1754 status); 1755 return (1); 1756 } 1757 1758 softc = malloc(sizeof(*softc), M_CTLFE, M_WAITOK | M_ZERO); 1759 xpt_path_lock(path); 1760 periph = cam_periph_find(path, "ctl"); 1761 if (periph != NULL) { 1762 /* We've already got a periph, no need to alloc a new one. */ 1763 xpt_path_unlock(path); 1764 xpt_free_path(path); 1765 free(softc, M_CTLFE); 1766 return (0); 1767 } 1768 softc->parent_softc = bus_softc; 1769 1770 status = cam_periph_alloc(ctlferegister, 1771 ctlfeoninvalidate, 1772 ctlfecleanup, 1773 ctlfestart, 1774 "ctl", 1775 CAM_PERIPH_BIO, 1776 path, 1777 ctlfeasync, 1778 0, 1779 softc); 1780 1781 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1782 const struct cam_status_entry *entry; 1783 1784 entry = cam_fetch_status_entry(status); 1785 printf("%s: CAM error %s (%#x) returned from " 1786 "cam_periph_alloc()\n", __func__, (entry != NULL) ? 1787 entry->status_text : "Unknown", status); 1788 free(softc, M_CTLFE); 1789 } 1790 1791 xpt_path_unlock(path); 1792 xpt_free_path(path); 1793 return (0); 1794 } 1795 1796 /* 1797 * This will get called when the user removes a LUN to disable that LUN 1798 * on every bus that is attached to CTL. 1799 */ 1800 static int 1801 ctlfe_lun_disable(void *arg, int lun_id) 1802 { 1803 struct ctlfe_softc *softc; 1804 struct ctlfe_lun_softc *lun_softc; 1805 1806 softc = (struct ctlfe_softc *)arg; 1807 if (softc->hba_misc & PIM_EXTLUNS) 1808 lun_id = CAM_EXTLUN_BYTE_SWIZZLE(ctl_encode_lun(lun_id)); 1809 1810 mtx_lock(&softc->lun_softc_mtx); 1811 STAILQ_FOREACH(lun_softc, &softc->lun_softc_list, links) { 1812 struct cam_path *path; 1813 1814 path = lun_softc->periph->path; 1815 1816 if ((xpt_path_target_id(path) == softc->target_id) 1817 && (xpt_path_lun_id(path) == lun_id)) { 1818 break; 1819 } 1820 } 1821 if (lun_softc == NULL) { 1822 mtx_unlock(&softc->lun_softc_mtx); 1823 printf("%s: can't find lun %d\n", __func__, lun_id); 1824 return (1); 1825 } 1826 cam_periph_acquire(lun_softc->periph); 1827 mtx_unlock(&softc->lun_softc_mtx); 1828 1829 cam_periph_lock(lun_softc->periph); 1830 cam_periph_invalidate(lun_softc->periph); 1831 cam_periph_unlock(lun_softc->periph); 1832 cam_periph_release(lun_softc->periph); 1833 return (0); 1834 } 1835 1836 static void 1837 ctlfe_dump_sim(struct cam_sim *sim) 1838 { 1839 1840 printf("%s%d: max dev openings: %d, max tagged dev openings: %d\n", 1841 sim->sim_name, sim->unit_number, sim->max_dev_openings, 1842 sim->max_tagged_dev_openings); 1843 } 1844 1845 /* 1846 * Assumes that the SIM lock is held. 1847 */ 1848 static void 1849 ctlfe_dump_queue(struct ctlfe_lun_softc *softc) 1850 { 1851 struct cam_periph *periph = softc->periph; 1852 struct ccb_hdr *hdr; 1853 struct ccb_getdevstats cgds; 1854 int num_items; 1855 1856 xpt_setup_ccb(&cgds.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 1857 cgds.ccb_h.func_code = XPT_GDEV_STATS; 1858 xpt_action((union ccb *)&cgds); 1859 if ((cgds.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1860 xpt_print(periph->path, "devq: openings %d, active %d, " 1861 "allocated %d, queued %d, held %d\n", 1862 cgds.dev_openings, cgds.dev_active, cgds.allocated, 1863 cgds.queued, cgds.held); 1864 } 1865 1866 num_items = 0; 1867 1868 STAILQ_FOREACH(hdr, &softc->work_queue, periph_links.stqe) { 1869 union ctl_io *io = hdr->io_ptr; 1870 1871 num_items++; 1872 1873 /* 1874 * Only regular SCSI I/O is put on the work 1875 * queue, so we can print sense here. There may be no 1876 * sense if it's no the queue for a DMA, but this serves to 1877 * print out the CCB as well. 1878 * 1879 * XXX KDM switch this over to scsi_sense_print() when 1880 * CTL is merged in with CAM. 1881 */ 1882 ctl_io_error_print(io, NULL); 1883 1884 /* 1885 * Print DMA status if we are DMA_QUEUED. 1886 */ 1887 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) { 1888 xpt_print(periph->path, 1889 "Total %u, Current %u, Resid %u\n", 1890 io->scsiio.kern_total_len, 1891 io->scsiio.kern_data_len, 1892 io->scsiio.kern_data_resid); 1893 } 1894 } 1895 1896 xpt_print(periph->path, "%d requests waiting for CCBs\n", num_items); 1897 xpt_print(periph->path, "%d CTIOs outstanding\n", softc->ctios_sent); 1898 } 1899 1900 /* 1901 * Datamove/done routine called by CTL. Put ourselves on the queue to 1902 * receive a CCB from CAM so we can queue the continue I/O request down 1903 * to the adapter. 1904 */ 1905 static void 1906 ctlfe_datamove(union ctl_io *io) 1907 { 1908 union ccb *ccb; 1909 struct cam_periph *periph; 1910 struct ctlfe_lun_softc *softc; 1911 1912 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 1913 ("Unexpected io_type (%d) in ctlfe_datamove", io->io_hdr.io_type)); 1914 1915 io->scsiio.ext_data_filled = 0; 1916 ccb = PRIV_CCB(io); 1917 periph = xpt_path_periph(ccb->ccb_h.path); 1918 cam_periph_lock(periph); 1919 softc = (struct ctlfe_lun_softc *)periph->softc; 1920 io->io_hdr.flags |= CTL_FLAG_DMA_QUEUED; 1921 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) 1922 io->io_hdr.flags |= CTL_FLAG_STATUS_QUEUED; 1923 STAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h, 1924 periph_links.stqe); 1925 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1926 cam_periph_unlock(periph); 1927 } 1928 1929 static void 1930 ctlfe_done(union ctl_io *io) 1931 { 1932 union ccb *ccb; 1933 struct cam_periph *periph; 1934 struct ctlfe_lun_softc *softc; 1935 1936 ccb = PRIV_CCB(io); 1937 periph = xpt_path_periph(ccb->ccb_h.path); 1938 cam_periph_lock(periph); 1939 softc = (struct ctlfe_lun_softc *)periph->softc; 1940 1941 if (io->io_hdr.io_type == CTL_IO_TASK) { 1942 /* 1943 * Send the notify acknowledge down to the SIM, to let it 1944 * know we processed the task management command. 1945 */ 1946 ccb->ccb_h.status = CAM_REQ_INPROG; 1947 ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE; 1948 switch (io->taskio.task_status) { 1949 case CTL_TASK_FUNCTION_COMPLETE: 1950 ccb->cna2.arg = CAM_RSP_TMF_COMPLETE; 1951 break; 1952 case CTL_TASK_FUNCTION_SUCCEEDED: 1953 ccb->cna2.arg = CAM_RSP_TMF_SUCCEEDED; 1954 ccb->ccb_h.flags |= CAM_SEND_STATUS; 1955 break; 1956 case CTL_TASK_FUNCTION_REJECTED: 1957 ccb->cna2.arg = CAM_RSP_TMF_REJECTED; 1958 ccb->ccb_h.flags |= CAM_SEND_STATUS; 1959 break; 1960 case CTL_TASK_LUN_DOES_NOT_EXIST: 1961 ccb->cna2.arg = CAM_RSP_TMF_INCORRECT_LUN; 1962 ccb->ccb_h.flags |= CAM_SEND_STATUS; 1963 break; 1964 case CTL_TASK_FUNCTION_NOT_SUPPORTED: 1965 ccb->cna2.arg = CAM_RSP_TMF_FAILED; 1966 ccb->ccb_h.flags |= CAM_SEND_STATUS; 1967 break; 1968 } 1969 ccb->cna2.arg |= scsi_3btoul(io->taskio.task_resp) << 8; 1970 xpt_action(ccb); 1971 } else if (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) { 1972 ctlfe_requeue_ccb(periph, ccb, /* unlock */1); 1973 return; 1974 } else { 1975 io->io_hdr.flags |= CTL_FLAG_STATUS_QUEUED; 1976 STAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h, 1977 periph_links.stqe); 1978 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1979 } 1980 1981 cam_periph_unlock(periph); 1982 } 1983 1984 static void 1985 ctlfe_dump(void) 1986 { 1987 struct ctlfe_softc *bus_softc; 1988 struct ctlfe_lun_softc *lun_softc; 1989 1990 STAILQ_FOREACH(bus_softc, &ctlfe_softc_list, links) { 1991 ctlfe_dump_sim(bus_softc->sim); 1992 STAILQ_FOREACH(lun_softc, &bus_softc->lun_softc_list, links) 1993 ctlfe_dump_queue(lun_softc); 1994 } 1995 } 1996