1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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/param.h> 42 #include <sys/queue.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/lock.h> 46 #include <sys/mutex.h> 47 #include <sys/condvar.h> 48 #include <sys/malloc.h> 49 #include <sys/bus.h> 50 #include <sys/endian.h> 51 #include <sys/sbuf.h> 52 #include <sys/sysctl.h> 53 #include <sys/types.h> 54 #include <sys/systm.h> 55 #include <sys/taskqueue.h> 56 #include <machine/bus.h> 57 58 #include <cam/cam.h> 59 #include <cam/cam_ccb.h> 60 #include <cam/cam_periph.h> 61 #include <cam/cam_queue.h> 62 #include <cam/cam_xpt_periph.h> 63 #include <cam/cam_debug.h> 64 #include <cam/cam_sim.h> 65 #include <cam/cam_xpt.h> 66 67 #include <cam/scsi/scsi_all.h> 68 #include <cam/scsi/scsi_message.h> 69 70 #include <cam/ctl/ctl_io.h> 71 #include <cam/ctl/ctl.h> 72 #include <cam/ctl/ctl_frontend.h> 73 #include <cam/ctl/ctl_util.h> 74 #include <cam/ctl/ctl_error.h> 75 76 struct ctlfe_softc { 77 struct ctl_port port; 78 path_id_t path_id; 79 target_id_t target_id; 80 uint32_t hba_misc; 81 u_int maxio; 82 struct cam_sim *sim; 83 char port_name[DEV_IDLEN]; 84 struct mtx lun_softc_mtx; 85 STAILQ_HEAD(, ctlfe_lun_softc) lun_softc_list; 86 STAILQ_ENTRY(ctlfe_softc) links; 87 }; 88 89 STAILQ_HEAD(, ctlfe_softc) ctlfe_softc_list; 90 struct mtx ctlfe_list_mtx; 91 static char ctlfe_mtx_desc[] = "ctlfelist"; 92 93 typedef enum { 94 CTLFE_LUN_NONE = 0x00, 95 CTLFE_LUN_WILDCARD = 0x01 96 } ctlfe_lun_flags; 97 98 struct ctlfe_lun_softc { 99 struct ctlfe_softc *parent_softc; 100 struct cam_periph *periph; 101 ctlfe_lun_flags flags; 102 int ctios_sent; /* Number of active CTIOs */ 103 int refcount; /* Number of active xpt_action() */ 104 int atios_alloced; /* Number of ATIOs not freed */ 105 int inots_alloced; /* Number of INOTs not freed */ 106 struct task refdrain_task; 107 STAILQ_HEAD(, ccb_hdr) work_queue; 108 LIST_HEAD(, ccb_hdr) atio_list; /* List of ATIOs queued to SIM. */ 109 LIST_HEAD(, ccb_hdr) inot_list; /* List of INOTs queued to SIM. */ 110 STAILQ_ENTRY(ctlfe_lun_softc) links; 111 }; 112 113 typedef enum { 114 CTLFE_CMD_NONE = 0x00, 115 CTLFE_CMD_PIECEWISE = 0x01 116 } ctlfe_cmd_flags; 117 118 struct ctlfe_cmd_info { 119 int cur_transfer_index; 120 size_t cur_transfer_off; 121 ctlfe_cmd_flags flags; 122 /* 123 * XXX KDM struct bus_dma_segment is 8 bytes on i386, and 16 124 * bytes on amd64. So with 32 elements, this is 256 bytes on 125 * i386 and 512 bytes on amd64. 126 */ 127 #define CTLFE_MAX_SEGS 32 128 bus_dma_segment_t cam_sglist[CTLFE_MAX_SEGS]; 129 }; 130 131 /* 132 * When we register the adapter/bus, request that this many ctl_ios be 133 * allocated. This should be the maximum supported by the adapter, but we 134 * currently don't have a way to get that back from the path inquiry. 135 * XXX KDM add that to the path inquiry. 136 */ 137 #define CTLFE_REQ_CTL_IO 4096 138 /* 139 * Number of Accept Target I/O CCBs to allocate and queue down to the 140 * adapter per LUN. 141 * XXX KDM should this be controlled by CTL? 142 */ 143 #define CTLFE_ATIO_PER_LUN 1024 144 /* 145 * Number of Immediate Notify CCBs (used for aborts, resets, etc.) to 146 * allocate and queue down to the adapter per LUN. 147 * XXX KDM should this be controlled by CTL? 148 */ 149 #define CTLFE_IN_PER_LUN 1024 150 151 /* 152 * Timeout (in seconds) on CTIO CCB doing DMA or sending status 153 */ 154 #define CTLFE_TIMEOUT 5 155 156 /* 157 * Turn this on to enable extra debugging prints. 158 */ 159 #if 0 160 #define CTLFE_DEBUG 161 #endif 162 163 MALLOC_DEFINE(M_CTLFE, "CAM CTL FE", "CAM CTL FE interface"); 164 165 #define io_ptr ppriv_ptr0 166 167 /* This is only used in the CTIO */ 168 #define ccb_atio ppriv_ptr1 169 170 #define PRIV_CCB(io) ((io)->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptrs[0]) 171 #define PRIV_INFO(io) ((io)->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptrs[1]) 172 173 static int ctlfeinitialize(void); 174 static int ctlfeshutdown(void); 175 static periph_init_t ctlfeperiphinit; 176 static periph_deinit_t ctlfeperiphdeinit; 177 static void ctlfeasync(void *callback_arg, uint32_t code, 178 struct cam_path *path, void *arg); 179 static periph_ctor_t ctlferegister; 180 static periph_oninv_t ctlfeoninvalidate; 181 static periph_dtor_t ctlfecleanup; 182 static periph_start_t ctlfestart; 183 static void ctlfedone(struct cam_periph *periph, 184 union ccb *done_ccb); 185 186 static void ctlfe_onoffline(void *arg, int online); 187 static void ctlfe_online(void *arg); 188 static void ctlfe_offline(void *arg); 189 static int ctlfe_lun_enable(void *arg, int lun_id); 190 static int ctlfe_lun_disable(void *arg, int lun_id); 191 static void ctlfe_dump_sim(struct cam_sim *sim); 192 static void ctlfe_dump_queue(struct ctlfe_lun_softc *softc); 193 static void ctlfe_datamove(union ctl_io *io); 194 static void ctlfe_done(union ctl_io *io); 195 static void ctlfe_dump(void); 196 static void ctlfe_free_ccb(struct cam_periph *periph, 197 union ccb *ccb); 198 static void ctlfe_requeue_ccb(struct cam_periph *periph, 199 union ccb *ccb, int unlock); 200 201 static struct periph_driver ctlfe_driver = 202 { 203 ctlfeperiphinit, "ctl", 204 TAILQ_HEAD_INITIALIZER(ctlfe_driver.units), /*generation*/ 0, 205 CAM_PERIPH_DRV_EARLY, 206 ctlfeperiphdeinit 207 }; 208 209 static struct ctl_frontend ctlfe_frontend = 210 { 211 .name = "camtgt", 212 .init = ctlfeinitialize, 213 .fe_dump = ctlfe_dump, 214 .shutdown = ctlfeshutdown, 215 }; 216 CTL_FRONTEND_DECLARE(ctlfe, ctlfe_frontend); 217 218 static int 219 ctlfeinitialize(void) 220 { 221 222 STAILQ_INIT(&ctlfe_softc_list); 223 mtx_init(&ctlfe_list_mtx, ctlfe_mtx_desc, NULL, MTX_DEF); 224 periphdriver_register(&ctlfe_driver); 225 return (0); 226 } 227 228 static int 229 ctlfeshutdown(void) 230 { 231 int error; 232 233 error = periphdriver_unregister(&ctlfe_driver); 234 if (error != 0) 235 return (error); 236 mtx_destroy(&ctlfe_list_mtx); 237 return (0); 238 } 239 240 static void 241 ctlfeperiphinit(void) 242 { 243 cam_status status; 244 245 status = xpt_register_async(AC_PATH_REGISTERED | AC_PATH_DEREGISTERED | 246 AC_CONTRACT, ctlfeasync, NULL, NULL); 247 if (status != CAM_REQ_CMP) { 248 printf("ctl: Failed to attach async callback due to CAM " 249 "status 0x%x!\n", status); 250 } 251 } 252 253 static int 254 ctlfeperiphdeinit(void) 255 { 256 257 /* XXX: It would be good to tear down active ports here. */ 258 if (!TAILQ_EMPTY(&ctlfe_driver.units)) 259 return (EBUSY); 260 xpt_register_async(0, ctlfeasync, NULL, NULL); 261 return (0); 262 } 263 264 static void 265 ctlfeasync(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 266 { 267 struct ctlfe_softc *softc; 268 269 #ifdef CTLFEDEBUG 270 printf("%s: entered\n", __func__); 271 #endif 272 273 mtx_lock(&ctlfe_list_mtx); 274 STAILQ_FOREACH(softc, &ctlfe_softc_list, links) { 275 if (softc->path_id == xpt_path_path_id(path)) 276 break; 277 } 278 mtx_unlock(&ctlfe_list_mtx); 279 280 /* 281 * When a new path gets registered, and it is capable of target 282 * mode, go ahead and attach. Later on, we may need to be more 283 * selective, but for now this will be sufficient. 284 */ 285 switch (code) { 286 case AC_PATH_REGISTERED: { 287 struct ctl_port *port; 288 struct ccb_pathinq *cpi; 289 int retval; 290 291 cpi = (struct ccb_pathinq *)arg; 292 293 /* Don't attach if it doesn't support target mode */ 294 if ((cpi->target_sprt & PIT_PROCESSOR) == 0) { 295 #ifdef CTLFEDEBUG 296 printf("%s: SIM %s%d doesn't support target mode\n", 297 __func__, cpi->dev_name, cpi->unit_number); 298 #endif 299 break; 300 } 301 302 if (softc != NULL) { 303 #ifdef CTLFEDEBUG 304 printf("%s: CTL port for CAM path %u already exists\n", 305 __func__, xpt_path_path_id(path)); 306 #endif 307 break; 308 } 309 310 /* 311 * We're in an interrupt context here, so we have to 312 * use M_NOWAIT. Of course this means trouble if we 313 * can't allocate memory. 314 */ 315 softc = malloc(sizeof(*softc), M_CTLFE, M_NOWAIT | M_ZERO); 316 if (softc == NULL) { 317 printf("%s: unable to malloc %zd bytes for softc\n", 318 __func__, sizeof(*softc)); 319 return; 320 } 321 322 softc->path_id = cpi->ccb_h.path_id; 323 softc->target_id = cpi->initiator_id; 324 softc->sim = xpt_path_sim(path); 325 softc->hba_misc = cpi->hba_misc; 326 if (cpi->maxio != 0) 327 softc->maxio = cpi->maxio; 328 else 329 softc->maxio = DFLTPHYS; 330 mtx_init(&softc->lun_softc_mtx, "LUN softc mtx", NULL, MTX_DEF); 331 STAILQ_INIT(&softc->lun_softc_list); 332 333 port = &softc->port; 334 port->frontend = &ctlfe_frontend; 335 336 /* 337 * XXX KDM should we be more accurate here ? 338 */ 339 if (cpi->transport == XPORT_FC) 340 port->port_type = CTL_PORT_FC; 341 else if (cpi->transport == XPORT_SAS) 342 port->port_type = CTL_PORT_SAS; 343 else 344 port->port_type = CTL_PORT_SCSI; 345 346 /* XXX KDM what should the real number be here? */ 347 port->num_requested_ctl_io = CTLFE_REQ_CTL_IO; 348 snprintf(softc->port_name, sizeof(softc->port_name), 349 "%s%d", cpi->dev_name, cpi->unit_number); 350 /* 351 * XXX KDM it would be nice to allocate storage in the 352 * frontend structure itself. 353 */ 354 port->port_name = softc->port_name; 355 port->physical_port = cpi->bus_id; 356 port->virtual_port = 0; 357 port->port_online = ctlfe_online; 358 port->port_offline = ctlfe_offline; 359 port->onoff_arg = softc; 360 port->lun_enable = ctlfe_lun_enable; 361 port->lun_disable = ctlfe_lun_disable; 362 port->targ_lun_arg = softc; 363 port->fe_datamove = ctlfe_datamove; 364 port->fe_done = ctlfe_done; 365 port->targ_port = -1; 366 367 retval = ctl_port_register(port); 368 if (retval != 0) { 369 printf("%s: ctl_port_register() failed with " 370 "error %d!\n", __func__, retval); 371 mtx_destroy(&softc->lun_softc_mtx); 372 free(softc, M_CTLFE); 373 break; 374 } else { 375 mtx_lock(&ctlfe_list_mtx); 376 STAILQ_INSERT_TAIL(&ctlfe_softc_list, softc, links); 377 mtx_unlock(&ctlfe_list_mtx); 378 } 379 380 break; 381 } 382 case AC_PATH_DEREGISTERED: { 383 if (softc != NULL) { 384 /* 385 * XXX KDM are we certain at this point that there 386 * are no outstanding commands for this frontend? 387 */ 388 mtx_lock(&ctlfe_list_mtx); 389 STAILQ_REMOVE(&ctlfe_softc_list, softc, ctlfe_softc, 390 links); 391 mtx_unlock(&ctlfe_list_mtx); 392 ctl_port_deregister(&softc->port); 393 mtx_destroy(&softc->lun_softc_mtx); 394 free(softc, M_CTLFE); 395 } 396 break; 397 } 398 case AC_CONTRACT: { 399 struct ac_contract *ac; 400 401 ac = (struct ac_contract *)arg; 402 403 switch (ac->contract_number) { 404 case AC_CONTRACT_DEV_CHG: { 405 struct ac_device_changed *dev_chg; 406 int retval; 407 408 dev_chg = (struct ac_device_changed *)ac->contract_data; 409 410 printf("%s: WWPN %#jx port 0x%06x path %u target %u %s\n", 411 __func__, dev_chg->wwpn, dev_chg->port, 412 xpt_path_path_id(path), dev_chg->target, 413 (dev_chg->arrived == 0) ? "left" : "arrived"); 414 415 if (softc == NULL) { 416 printf("%s: CTL port for CAM path %u not " 417 "found!\n", __func__, 418 xpt_path_path_id(path)); 419 break; 420 } 421 if (dev_chg->arrived != 0) { 422 retval = ctl_add_initiator(&softc->port, 423 dev_chg->target, dev_chg->wwpn, NULL); 424 } else { 425 retval = ctl_remove_initiator(&softc->port, 426 dev_chg->target); 427 } 428 429 if (retval < 0) { 430 printf("%s: could not %s port %d iid %u " 431 "WWPN %#jx!\n", __func__, 432 (dev_chg->arrived != 0) ? "add" : 433 "remove", softc->port.targ_port, 434 dev_chg->target, 435 (uintmax_t)dev_chg->wwpn); 436 } 437 break; 438 } 439 default: 440 printf("%s: unsupported contract number %ju\n", 441 __func__, (uintmax_t)ac->contract_number); 442 break; 443 } 444 break; 445 } 446 default: 447 break; 448 } 449 } 450 451 static cam_status 452 ctlferegister(struct cam_periph *periph, void *arg) 453 { 454 struct ctlfe_softc *bus_softc; 455 struct ctlfe_lun_softc *softc; 456 union ccb ccb; 457 cam_status status; 458 int i, acstatus; 459 460 softc = (struct ctlfe_lun_softc *)arg; 461 bus_softc = softc->parent_softc; 462 463 STAILQ_INIT(&softc->work_queue); 464 LIST_INIT(&softc->atio_list); 465 LIST_INIT(&softc->inot_list); 466 softc->periph = periph; 467 periph->softc = softc; 468 469 /* Increase device openings to maximum for the SIM. */ 470 if (bus_softc->sim->max_tagged_dev_openings > 471 bus_softc->sim->max_dev_openings) { 472 cam_release_devq(periph->path, 473 /*relsim_flags*/RELSIM_ADJUST_OPENINGS, 474 /*openings*/bus_softc->sim->max_tagged_dev_openings, 475 /*timeout*/0, 476 /*getcount_only*/1); 477 } 478 479 memset(&ccb, 0, sizeof(ccb)); 480 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); 481 ccb.ccb_h.func_code = XPT_EN_LUN; 482 ccb.cel.grp6_len = 0; 483 ccb.cel.grp7_len = 0; 484 ccb.cel.enable = 1; 485 xpt_action(&ccb); 486 status = (ccb.ccb_h.status & CAM_STATUS_MASK); 487 if (status != CAM_REQ_CMP) { 488 xpt_print(periph->path, "%s: Enable LUN failed, status 0x%x\n", 489 __func__, ccb.ccb_h.status); 490 return (status); 491 } 492 493 status = CAM_REQ_CMP; 494 495 for (i = 0; i < CTLFE_ATIO_PER_LUN; i++) { 496 union ccb *new_ccb; 497 union ctl_io *new_io; 498 struct ctlfe_cmd_info *cmd_info; 499 500 new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE, 501 M_ZERO|M_NOWAIT); 502 if (new_ccb == NULL) { 503 status = CAM_RESRC_UNAVAIL; 504 break; 505 } 506 new_io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref); 507 if (new_io == NULL) { 508 free(new_ccb, M_CTLFE); 509 status = CAM_RESRC_UNAVAIL; 510 break; 511 } 512 cmd_info = malloc(sizeof(*cmd_info), M_CTLFE, 513 M_ZERO | M_NOWAIT); 514 if (cmd_info == NULL) { 515 ctl_free_io(new_io); 516 free(new_ccb, M_CTLFE); 517 status = CAM_RESRC_UNAVAIL; 518 break; 519 } 520 PRIV_INFO(new_io) = cmd_info; 521 softc->atios_alloced++; 522 new_ccb->ccb_h.io_ptr = new_io; 523 LIST_INSERT_HEAD(&softc->atio_list, &new_ccb->ccb_h, periph_links.le); 524 525 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, CAM_PRIORITY_NONE); 526 new_ccb->ccb_h.func_code = XPT_ACCEPT_TARGET_IO; 527 new_ccb->ccb_h.cbfcnp = ctlfedone; 528 new_ccb->ccb_h.flags |= CAM_UNLOCKED; 529 xpt_action(new_ccb); 530 status = new_ccb->ccb_h.status; 531 if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 532 free(cmd_info, M_CTLFE); 533 ctl_free_io(new_io); 534 free(new_ccb, M_CTLFE); 535 break; 536 } 537 } 538 539 acstatus = cam_periph_acquire(periph); 540 if (acstatus != 0) { 541 xpt_print(periph->path, "%s: could not acquire reference " 542 "count, status = %#x\n", __func__, acstatus); 543 return (CAM_REQ_CMP_ERR); 544 } 545 546 if (i == 0) { 547 xpt_print(periph->path, "%s: could not allocate ATIO CCBs, " 548 "status 0x%x\n", __func__, status); 549 return (CAM_REQ_CMP_ERR); 550 } 551 552 for (i = 0; i < CTLFE_IN_PER_LUN; i++) { 553 union ccb *new_ccb; 554 union ctl_io *new_io; 555 556 new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE, 557 M_ZERO|M_NOWAIT); 558 if (new_ccb == NULL) { 559 status = CAM_RESRC_UNAVAIL; 560 break; 561 } 562 new_io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref); 563 if (new_io == NULL) { 564 free(new_ccb, M_CTLFE); 565 status = CAM_RESRC_UNAVAIL; 566 break; 567 } 568 softc->inots_alloced++; 569 new_ccb->ccb_h.io_ptr = new_io; 570 LIST_INSERT_HEAD(&softc->inot_list, &new_ccb->ccb_h, periph_links.le); 571 572 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, CAM_PRIORITY_NONE); 573 new_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY; 574 new_ccb->ccb_h.cbfcnp = ctlfedone; 575 new_ccb->ccb_h.flags |= CAM_UNLOCKED; 576 xpt_action(new_ccb); 577 status = new_ccb->ccb_h.status; 578 if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 579 /* 580 * Note that we don't free the CCB here. If the 581 * status is not CAM_REQ_INPROG, then we're 582 * probably talking to a SIM that says it is 583 * target-capable but doesn't support the 584 * XPT_IMMEDIATE_NOTIFY CCB. i.e. it supports the 585 * older API. In that case, it'll call xpt_done() 586 * on the CCB, and we need to free it in our done 587 * routine as a result. 588 */ 589 break; 590 } 591 } 592 if ((i == 0) 593 || (status != CAM_REQ_INPROG)) { 594 xpt_print(periph->path, "%s: could not allocate immediate " 595 "notify CCBs, status 0x%x\n", __func__, status); 596 return (CAM_REQ_CMP_ERR); 597 } 598 mtx_lock(&bus_softc->lun_softc_mtx); 599 STAILQ_INSERT_TAIL(&bus_softc->lun_softc_list, softc, links); 600 mtx_unlock(&bus_softc->lun_softc_mtx); 601 return (CAM_REQ_CMP); 602 } 603 604 static void 605 ctlfeoninvalidate(struct cam_periph *periph) 606 { 607 struct ctlfe_lun_softc *softc = (struct ctlfe_lun_softc *)periph->softc; 608 struct ctlfe_softc *bus_softc; 609 union ccb ccb; 610 struct ccb_hdr *hdr; 611 cam_status status; 612 613 /* Abort all ATIOs and INOTs queued to SIM. */ 614 memset(&ccb, 0, sizeof(ccb)); 615 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); 616 ccb.ccb_h.func_code = XPT_ABORT; 617 LIST_FOREACH(hdr, &softc->atio_list, periph_links.le) { 618 ccb.cab.abort_ccb = (union ccb *)hdr; 619 xpt_action(&ccb); 620 } 621 LIST_FOREACH(hdr, &softc->inot_list, periph_links.le) { 622 ccb.cab.abort_ccb = (union ccb *)hdr; 623 xpt_action(&ccb); 624 } 625 626 /* Disable the LUN in SIM. */ 627 ccb.ccb_h.func_code = XPT_EN_LUN; 628 ccb.cel.grp6_len = 0; 629 ccb.cel.grp7_len = 0; 630 ccb.cel.enable = 0; 631 xpt_action(&ccb); 632 status = (ccb.ccb_h.status & CAM_STATUS_MASK); 633 if (status != CAM_REQ_CMP) { 634 xpt_print(periph->path, "%s: Disable LUN failed, status 0x%x\n", 635 __func__, ccb.ccb_h.status); 636 /* 637 * XXX KDM what do we do now? 638 */ 639 } 640 641 bus_softc = softc->parent_softc; 642 mtx_lock(&bus_softc->lun_softc_mtx); 643 STAILQ_REMOVE(&bus_softc->lun_softc_list, softc, ctlfe_lun_softc, links); 644 mtx_unlock(&bus_softc->lun_softc_mtx); 645 } 646 647 static void 648 ctlfecleanup(struct cam_periph *periph) 649 { 650 struct ctlfe_lun_softc *softc; 651 652 softc = (struct ctlfe_lun_softc *)periph->softc; 653 654 KASSERT(softc->ctios_sent == 0, ("%s: ctios_sent %d != 0", 655 __func__, softc->ctios_sent)); 656 KASSERT(softc->refcount == 0, ("%s: refcount %d != 0", 657 __func__, softc->refcount)); 658 KASSERT(softc->atios_alloced == 0, ("%s: atios_alloced %d != 0", 659 __func__, softc->atios_alloced)); 660 KASSERT(softc->inots_alloced == 0, ("%s: inots_alloced %d != 0", 661 __func__, softc->inots_alloced)); 662 663 free(softc, M_CTLFE); 664 } 665 666 static void 667 ctlfedata(struct ctlfe_lun_softc *softc, union ctl_io *io, 668 ccb_flags *flags, uint8_t **data_ptr, uint32_t *dxfer_len, 669 uint16_t *sglist_cnt) 670 { 671 struct ctlfe_softc *bus_softc; 672 struct ctlfe_cmd_info *cmd_info; 673 struct ctl_sg_entry *ctl_sglist; 674 bus_dma_segment_t *cam_sglist; 675 size_t off; 676 int i, idx; 677 678 cmd_info = PRIV_INFO(io); 679 bus_softc = softc->parent_softc; 680 681 /* 682 * Set the direction, relative to the initiator. 683 */ 684 *flags &= ~CAM_DIR_MASK; 685 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 686 *flags |= CAM_DIR_IN; 687 else 688 *flags |= CAM_DIR_OUT; 689 690 *flags &= ~CAM_DATA_MASK; 691 idx = cmd_info->cur_transfer_index; 692 off = cmd_info->cur_transfer_off; 693 cmd_info->flags &= ~CTLFE_CMD_PIECEWISE; 694 if (io->scsiio.kern_sg_entries == 0) { /* No S/G list. */ 695 696 /* One time shift for SRR offset. */ 697 off += io->scsiio.ext_data_filled; 698 io->scsiio.ext_data_filled = 0; 699 700 *data_ptr = io->scsiio.kern_data_ptr + off; 701 if (io->scsiio.kern_data_len - off <= bus_softc->maxio) { 702 *dxfer_len = io->scsiio.kern_data_len - off; 703 } else { 704 *dxfer_len = bus_softc->maxio; 705 cmd_info->cur_transfer_off += bus_softc->maxio; 706 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 707 } 708 *sglist_cnt = 0; 709 710 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 711 *flags |= CAM_DATA_PADDR; 712 else 713 *flags |= CAM_DATA_VADDR; 714 } else { /* S/G list with physical or virtual pointers. */ 715 ctl_sglist = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 716 717 /* One time shift for SRR offset. */ 718 while (io->scsiio.ext_data_filled >= ctl_sglist[idx].len - off) { 719 io->scsiio.ext_data_filled -= ctl_sglist[idx].len - off; 720 idx++; 721 off = 0; 722 } 723 off += io->scsiio.ext_data_filled; 724 io->scsiio.ext_data_filled = 0; 725 726 cam_sglist = cmd_info->cam_sglist; 727 *dxfer_len = 0; 728 for (i = 0; i < io->scsiio.kern_sg_entries - idx; i++) { 729 cam_sglist[i].ds_addr = (bus_addr_t)(uintptr_t)ctl_sglist[i + idx].addr + off; 730 if (ctl_sglist[i + idx].len - off <= bus_softc->maxio - *dxfer_len) { 731 cam_sglist[i].ds_len = ctl_sglist[idx + i].len - off; 732 *dxfer_len += cam_sglist[i].ds_len; 733 } else { 734 cam_sglist[i].ds_len = bus_softc->maxio - *dxfer_len; 735 cmd_info->cur_transfer_index = idx + i; 736 cmd_info->cur_transfer_off = cam_sglist[i].ds_len + off; 737 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 738 *dxfer_len += cam_sglist[i].ds_len; 739 if (ctl_sglist[i].len != 0) 740 i++; 741 break; 742 } 743 if (i == (CTLFE_MAX_SEGS - 1) && 744 idx + i < (io->scsiio.kern_sg_entries - 1)) { 745 cmd_info->cur_transfer_index = idx + i + 1; 746 cmd_info->cur_transfer_off = 0; 747 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 748 i++; 749 break; 750 } 751 off = 0; 752 } 753 *sglist_cnt = i; 754 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 755 *flags |= CAM_DATA_SG_PADDR; 756 else 757 *flags |= CAM_DATA_SG; 758 *data_ptr = (uint8_t *)cam_sglist; 759 } 760 } 761 762 static void 763 ctlfestart(struct cam_periph *periph, union ccb *start_ccb) 764 { 765 struct ctlfe_lun_softc *softc; 766 struct ctlfe_cmd_info *cmd_info; 767 struct ccb_hdr *ccb_h; 768 struct ccb_accept_tio *atio; 769 struct ccb_scsiio *csio; 770 uint8_t *data_ptr; 771 uint32_t dxfer_len; 772 ccb_flags flags; 773 union ctl_io *io; 774 uint8_t scsi_status; 775 776 softc = (struct ctlfe_lun_softc *)periph->softc; 777 778 next: 779 /* Take the ATIO off the work queue */ 780 ccb_h = STAILQ_FIRST(&softc->work_queue); 781 if (ccb_h == NULL) { 782 xpt_release_ccb(start_ccb); 783 return; 784 } 785 STAILQ_REMOVE_HEAD(&softc->work_queue, periph_links.stqe); 786 atio = (struct ccb_accept_tio *)ccb_h; 787 io = (union ctl_io *)ccb_h->io_ptr; 788 csio = &start_ccb->csio; 789 790 flags = atio->ccb_h.flags & 791 (CAM_DIS_DISCONNECT|CAM_TAG_ACTION_VALID|CAM_DIR_MASK); 792 cmd_info = PRIV_INFO(io); 793 cmd_info->cur_transfer_index = 0; 794 cmd_info->cur_transfer_off = 0; 795 cmd_info->flags = 0; 796 797 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) { 798 /* 799 * Datamove call, we need to setup the S/G list. 800 */ 801 ctlfedata(softc, io, &flags, &data_ptr, &dxfer_len, 802 &csio->sglist_cnt); 803 } else { 804 /* 805 * We're done, send status back. 806 */ 807 if ((io->io_hdr.flags & CTL_FLAG_ABORT) && 808 (io->io_hdr.flags & CTL_FLAG_ABORT_STATUS) == 0) { 809 io->io_hdr.flags &= ~CTL_FLAG_STATUS_QUEUED; 810 811 /* Tell the SIM that we've aborted this ATIO */ 812 #ifdef CTLFEDEBUG 813 printf("%s: tag %04x abort\n", __func__, atio->tag_id); 814 #endif 815 KASSERT(atio->ccb_h.func_code == XPT_ACCEPT_TARGET_IO, 816 ("func_code %#x is not ATIO", atio->ccb_h.func_code)); 817 start_ccb->ccb_h.func_code = XPT_ABORT; 818 start_ccb->cab.abort_ccb = (union ccb *)atio; 819 xpt_action(start_ccb); 820 821 ctlfe_requeue_ccb(periph, (union ccb *)atio, 822 /* unlock */0); 823 824 /* XPT_ABORT is not queued, so we can take next I/O. */ 825 goto next; 826 } 827 data_ptr = NULL; 828 dxfer_len = 0; 829 csio->sglist_cnt = 0; 830 } 831 scsi_status = 0; 832 if ((io->io_hdr.flags & CTL_FLAG_STATUS_QUEUED) && 833 (cmd_info->flags & CTLFE_CMD_PIECEWISE) == 0 && 834 ((io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) == 0 || 835 io->io_hdr.status == CTL_SUCCESS)) { 836 flags |= CAM_SEND_STATUS; 837 scsi_status = io->scsiio.scsi_status; 838 csio->sense_len = io->scsiio.sense_len; 839 #ifdef CTLFEDEBUG 840 printf("%s: tag %04x status %x\n", __func__, 841 atio->tag_id, io->io_hdr.status); 842 #endif 843 if (csio->sense_len != 0) { 844 csio->sense_data = io->scsiio.sense_data; 845 flags |= CAM_SEND_SENSE; 846 } 847 } 848 849 #ifdef CTLFEDEBUG 850 printf("%s: %s: tag %04x flags %x ptr %p len %u\n", __func__, 851 (flags & CAM_SEND_STATUS) ? "done" : "datamove", 852 atio->tag_id, flags, data_ptr, dxfer_len); 853 #endif 854 855 /* 856 * Valid combinations: 857 * - CAM_SEND_STATUS, CAM_DATA_SG = 0, dxfer_len = 0, 858 * sglist_cnt = 0 859 * - CAM_SEND_STATUS = 0, CAM_DATA_SG = 0, dxfer_len != 0, 860 * sglist_cnt = 0 861 * - CAM_SEND_STATUS = 0, CAM_DATA_SG, dxfer_len != 0, 862 * sglist_cnt != 0 863 */ 864 #ifdef CTLFEDEBUG 865 if (((flags & CAM_SEND_STATUS) 866 && (((flags & CAM_DATA_SG) != 0) 867 || (dxfer_len != 0) 868 || (csio->sglist_cnt != 0))) 869 || (((flags & CAM_SEND_STATUS) == 0) 870 && (dxfer_len == 0)) 871 || ((flags & CAM_DATA_SG) 872 && (csio->sglist_cnt == 0)) 873 || (((flags & CAM_DATA_SG) == 0) 874 && (csio->sglist_cnt != 0))) { 875 printf("%s: tag %04x cdb %02x flags %#x dxfer_len " 876 "%d sg %u\n", __func__, atio->tag_id, 877 atio_cdb_ptr(atio)[0], flags, dxfer_len, 878 csio->sglist_cnt); 879 printf("%s: tag %04x io status %#x\n", __func__, 880 atio->tag_id, io->io_hdr.status); 881 } 882 #endif 883 cam_fill_ctio(csio, 884 /*retries*/ 2, 885 ctlfedone, 886 flags, 887 (flags & CAM_TAG_ACTION_VALID) ? MSG_SIMPLE_Q_TAG : 0, 888 atio->tag_id, 889 atio->init_id, 890 scsi_status, 891 /*data_ptr*/ data_ptr, 892 /*dxfer_len*/ dxfer_len, 893 /*timeout*/ CTLFE_TIMEOUT * 1000); 894 start_ccb->ccb_h.flags |= CAM_UNLOCKED; 895 start_ccb->ccb_h.ccb_atio = atio; 896 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 897 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 898 io->io_hdr.flags &= ~(CTL_FLAG_DMA_QUEUED | CTL_FLAG_STATUS_QUEUED); 899 900 softc->ctios_sent++; 901 softc->refcount++; 902 cam_periph_unlock(periph); 903 xpt_action(start_ccb); 904 cam_periph_lock(periph); 905 softc->refcount--; 906 907 /* 908 * If we still have work to do, ask for another CCB. 909 */ 910 if (!STAILQ_EMPTY(&softc->work_queue)) 911 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 912 } 913 914 static void 915 ctlfe_drain(void *context, int pending) 916 { 917 struct cam_periph *periph = context; 918 struct ctlfe_lun_softc *softc = periph->softc; 919 920 cam_periph_lock(periph); 921 while (softc->refcount != 0) { 922 cam_periph_sleep(periph, &softc->refcount, PRIBIO, 923 "ctlfe_drain", 1); 924 } 925 cam_periph_unlock(periph); 926 cam_periph_release(periph); 927 } 928 929 static void 930 ctlfe_free_ccb(struct cam_periph *periph, union ccb *ccb) 931 { 932 struct ctlfe_lun_softc *softc; 933 union ctl_io *io; 934 struct ctlfe_cmd_info *cmd_info; 935 936 softc = (struct ctlfe_lun_softc *)periph->softc; 937 io = ccb->ccb_h.io_ptr; 938 939 switch (ccb->ccb_h.func_code) { 940 case XPT_ACCEPT_TARGET_IO: 941 softc->atios_alloced--; 942 cmd_info = PRIV_INFO(io); 943 free(cmd_info, M_CTLFE); 944 break; 945 case XPT_IMMEDIATE_NOTIFY: 946 case XPT_NOTIFY_ACKNOWLEDGE: 947 softc->inots_alloced--; 948 break; 949 default: 950 break; 951 } 952 953 ctl_free_io(io); 954 free(ccb, M_CTLFE); 955 956 KASSERT(softc->atios_alloced >= 0, ("%s: atios_alloced %d < 0", 957 __func__, softc->atios_alloced)); 958 KASSERT(softc->inots_alloced >= 0, ("%s: inots_alloced %d < 0", 959 __func__, softc->inots_alloced)); 960 961 /* 962 * If we have received all of our CCBs, we can release our 963 * reference on the peripheral driver. It will probably go away 964 * now. 965 */ 966 if (softc->atios_alloced == 0 && softc->inots_alloced == 0) { 967 if (softc->refcount == 0) { 968 cam_periph_release_locked(periph); 969 } else { 970 TASK_INIT(&softc->refdrain_task, 0, ctlfe_drain, periph); 971 taskqueue_enqueue(taskqueue_thread, 972 &softc->refdrain_task); 973 } 974 } 975 } 976 977 /* 978 * Send the ATIO/INOT back to the SIM, or free it if periph was invalidated. 979 */ 980 static void 981 ctlfe_requeue_ccb(struct cam_periph *periph, union ccb *ccb, int unlock) 982 { 983 struct ctlfe_lun_softc *softc; 984 struct mtx *mtx; 985 986 if (periph->flags & CAM_PERIPH_INVALID) { 987 mtx = cam_periph_mtx(periph); 988 ctlfe_free_ccb(periph, ccb); 989 if (unlock) 990 mtx_unlock(mtx); 991 return; 992 } 993 softc = (struct ctlfe_lun_softc *)periph->softc; 994 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 995 LIST_INSERT_HEAD(&softc->atio_list, &ccb->ccb_h, periph_links.le); 996 else 997 LIST_INSERT_HEAD(&softc->inot_list, &ccb->ccb_h, periph_links.le); 998 if (unlock) 999 cam_periph_unlock(periph); 1000 1001 /* 1002 * For a wildcard attachment, commands can come in with a specific 1003 * target/lun. Reset the target and LUN fields back to the wildcard 1004 * values before we send them back down to the SIM. 1005 */ 1006 xpt_setup_ccb_flags(&ccb->ccb_h, periph->path, CAM_PRIORITY_NONE, 1007 ccb->ccb_h.flags); 1008 1009 xpt_action(ccb); 1010 } 1011 1012 static int 1013 ctlfe_adjust_cdb(struct ccb_accept_tio *atio, uint32_t offset) 1014 { 1015 uint64_t lba; 1016 uint32_t num_blocks, nbc; 1017 uint8_t *cmdbyt = atio_cdb_ptr(atio); 1018 1019 nbc = offset >> 9; /* ASSUMING 512 BYTE BLOCKS */ 1020 1021 switch (cmdbyt[0]) { 1022 case READ_6: 1023 case WRITE_6: 1024 { 1025 struct scsi_rw_6 *cdb = (struct scsi_rw_6 *)cmdbyt; 1026 lba = scsi_3btoul(cdb->addr); 1027 lba &= 0x1fffff; 1028 num_blocks = cdb->length; 1029 if (num_blocks == 0) 1030 num_blocks = 256; 1031 lba += nbc; 1032 num_blocks -= nbc; 1033 scsi_ulto3b(lba, cdb->addr); 1034 cdb->length = num_blocks; 1035 break; 1036 } 1037 case READ_10: 1038 case WRITE_10: 1039 { 1040 struct scsi_rw_10 *cdb = (struct scsi_rw_10 *)cmdbyt; 1041 lba = scsi_4btoul(cdb->addr); 1042 num_blocks = scsi_2btoul(cdb->length); 1043 lba += nbc; 1044 num_blocks -= nbc; 1045 scsi_ulto4b(lba, cdb->addr); 1046 scsi_ulto2b(num_blocks, cdb->length); 1047 break; 1048 } 1049 case READ_12: 1050 case WRITE_12: 1051 { 1052 struct scsi_rw_12 *cdb = (struct scsi_rw_12 *)cmdbyt; 1053 lba = scsi_4btoul(cdb->addr); 1054 num_blocks = scsi_4btoul(cdb->length); 1055 lba += nbc; 1056 num_blocks -= nbc; 1057 scsi_ulto4b(lba, cdb->addr); 1058 scsi_ulto4b(num_blocks, cdb->length); 1059 break; 1060 } 1061 case READ_16: 1062 case WRITE_16: 1063 { 1064 struct scsi_rw_16 *cdb = (struct scsi_rw_16 *)cmdbyt; 1065 lba = scsi_8btou64(cdb->addr); 1066 num_blocks = scsi_4btoul(cdb->length); 1067 lba += nbc; 1068 num_blocks -= nbc; 1069 scsi_u64to8b(lba, cdb->addr); 1070 scsi_ulto4b(num_blocks, cdb->length); 1071 break; 1072 } 1073 default: 1074 return -1; 1075 } 1076 return (0); 1077 } 1078 1079 static void 1080 ctlfedone(struct cam_periph *periph, union ccb *done_ccb) 1081 { 1082 struct ctlfe_lun_softc *softc; 1083 struct ctlfe_softc *bus_softc; 1084 struct ctlfe_cmd_info *cmd_info; 1085 struct ccb_accept_tio *atio = NULL; 1086 union ctl_io *io = NULL; 1087 struct mtx *mtx; 1088 cam_status status; 1089 1090 KASSERT((done_ccb->ccb_h.flags & CAM_UNLOCKED) != 0, 1091 ("CCB in ctlfedone() without CAM_UNLOCKED flag")); 1092 #ifdef CTLFE_DEBUG 1093 printf("%s: entered, func_code = %#x\n", __func__, 1094 done_ccb->ccb_h.func_code); 1095 #endif 1096 1097 /* 1098 * At this point CTL has no known use case for device queue freezes. 1099 * In case some SIM think different -- drop its freeze right here. 1100 */ 1101 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1102 cam_release_devq(periph->path, 1103 /*relsim_flags*/0, 1104 /*reduction*/0, 1105 /*timeout*/0, 1106 /*getcount_only*/0); 1107 done_ccb->ccb_h.status &= ~CAM_DEV_QFRZN; 1108 } 1109 1110 softc = (struct ctlfe_lun_softc *)periph->softc; 1111 bus_softc = softc->parent_softc; 1112 mtx = cam_periph_mtx(periph); 1113 mtx_lock(mtx); 1114 1115 switch (done_ccb->ccb_h.func_code) { 1116 case XPT_ACCEPT_TARGET_IO: { 1117 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1118 atio = &done_ccb->atio; 1119 status = atio->ccb_h.status & CAM_STATUS_MASK; 1120 if (status != CAM_CDB_RECVD) { 1121 ctlfe_free_ccb(periph, done_ccb); 1122 goto out; 1123 } 1124 1125 resubmit: 1126 /* 1127 * Allocate a ctl_io, pass it to CTL, and wait for the 1128 * datamove or done. 1129 */ 1130 mtx_unlock(mtx); 1131 io = done_ccb->ccb_h.io_ptr; 1132 cmd_info = PRIV_INFO(io); 1133 ctl_zero_io(io); 1134 1135 /* Save pointers on both sides */ 1136 PRIV_CCB(io) = done_ccb; 1137 PRIV_INFO(io) = cmd_info; 1138 done_ccb->ccb_h.io_ptr = io; 1139 1140 /* 1141 * Only SCSI I/O comes down this path, resets, etc. come 1142 * down the immediate notify path below. 1143 */ 1144 io->io_hdr.io_type = CTL_IO_SCSI; 1145 io->io_hdr.nexus.initid = atio->init_id; 1146 io->io_hdr.nexus.targ_port = bus_softc->port.targ_port; 1147 if (bus_softc->hba_misc & PIM_EXTLUNS) { 1148 io->io_hdr.nexus.targ_lun = ctl_decode_lun( 1149 CAM_EXTLUN_BYTE_SWIZZLE(atio->ccb_h.target_lun)); 1150 } else { 1151 io->io_hdr.nexus.targ_lun = atio->ccb_h.target_lun; 1152 } 1153 io->scsiio.priority = atio->priority; 1154 io->scsiio.tag_num = atio->tag_id; 1155 switch (atio->tag_action) { 1156 case CAM_TAG_ACTION_NONE: 1157 io->scsiio.tag_type = CTL_TAG_UNTAGGED; 1158 break; 1159 case MSG_SIMPLE_TASK: 1160 io->scsiio.tag_type = CTL_TAG_SIMPLE; 1161 break; 1162 case MSG_HEAD_OF_QUEUE_TASK: 1163 io->scsiio.tag_type = CTL_TAG_HEAD_OF_QUEUE; 1164 break; 1165 case MSG_ORDERED_TASK: 1166 io->scsiio.tag_type = CTL_TAG_ORDERED; 1167 break; 1168 case MSG_ACA_TASK: 1169 io->scsiio.tag_type = CTL_TAG_ACA; 1170 break; 1171 default: 1172 io->scsiio.tag_type = CTL_TAG_UNTAGGED; 1173 printf("%s: unhandled tag type %#x!!\n", __func__, 1174 atio->tag_action); 1175 break; 1176 } 1177 if (atio->cdb_len > sizeof(io->scsiio.cdb)) { 1178 printf("%s: WARNING: CDB len %d > ctl_io space %zd\n", 1179 __func__, atio->cdb_len, sizeof(io->scsiio.cdb)); 1180 } 1181 io->scsiio.cdb_len = min(atio->cdb_len, sizeof(io->scsiio.cdb)); 1182 bcopy(atio_cdb_ptr(atio), io->scsiio.cdb, io->scsiio.cdb_len); 1183 1184 #ifdef CTLFEDEBUG 1185 printf("%s: %u:%u:%u: tag %jx CDB %02x\n", __func__, 1186 io->io_hdr.nexus.initid, 1187 io->io_hdr.nexus.targ_port, 1188 io->io_hdr.nexus.targ_lun, 1189 io->scsiio.tag_num, io->scsiio.cdb[0]); 1190 #endif 1191 1192 ctl_queue(io); 1193 return; 1194 } 1195 case XPT_CONT_TARGET_IO: { 1196 int srr = 0; 1197 uint32_t srr_off = 0; 1198 1199 atio = (struct ccb_accept_tio *)done_ccb->ccb_h.ccb_atio; 1200 io = (union ctl_io *)atio->ccb_h.io_ptr; 1201 1202 softc->ctios_sent--; 1203 #ifdef CTLFEDEBUG 1204 printf("%s: got XPT_CONT_TARGET_IO tag %#x flags %#x\n", 1205 __func__, atio->tag_id, done_ccb->ccb_h.flags); 1206 #endif 1207 /* 1208 * Handle SRR case were the data pointer is pushed back hack 1209 */ 1210 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_MESSAGE_RECV 1211 && done_ccb->csio.msg_ptr != NULL 1212 && done_ccb->csio.msg_ptr[0] == MSG_EXTENDED 1213 && done_ccb->csio.msg_ptr[1] == 5 1214 && done_ccb->csio.msg_ptr[2] == 0) { 1215 srr = 1; 1216 srr_off = 1217 (done_ccb->csio.msg_ptr[3] << 24) 1218 | (done_ccb->csio.msg_ptr[4] << 16) 1219 | (done_ccb->csio.msg_ptr[5] << 8) 1220 | (done_ccb->csio.msg_ptr[6]); 1221 } 1222 1223 /* 1224 * If we have an SRR and we're still sending data, we 1225 * should be able to adjust offsets and cycle again. 1226 * It is possible only if offset is from this datamove. 1227 */ 1228 if (srr && (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) && 1229 srr_off >= io->scsiio.kern_rel_offset && 1230 srr_off < io->scsiio.kern_rel_offset + 1231 io->scsiio.kern_data_len) { 1232 io->scsiio.kern_data_resid = 1233 io->scsiio.kern_rel_offset + 1234 io->scsiio.kern_data_len - srr_off; 1235 io->scsiio.ext_data_filled = srr_off; 1236 io->scsiio.io_hdr.status = CTL_STATUS_NONE; 1237 io->io_hdr.flags |= CTL_FLAG_DMA_QUEUED; 1238 xpt_release_ccb(done_ccb); 1239 STAILQ_INSERT_HEAD(&softc->work_queue, &atio->ccb_h, 1240 periph_links.stqe); 1241 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1242 break; 1243 } 1244 1245 /* 1246 * If status was being sent, the back end data is now history. 1247 * Hack it up and resubmit a new command with the CDB adjusted. 1248 * If the SIM does the right thing, all of the resid math 1249 * should work. 1250 */ 1251 if (srr && (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) { 1252 xpt_release_ccb(done_ccb); 1253 if (ctlfe_adjust_cdb(atio, srr_off) == 0) { 1254 done_ccb = (union ccb *)atio; 1255 goto resubmit; 1256 } 1257 /* 1258 * Fall through to doom.... 1259 */ 1260 } 1261 1262 if ((done_ccb->ccb_h.flags & CAM_SEND_STATUS) && 1263 (done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1264 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1265 1266 /* 1267 * If we were sending status back to the initiator, free up 1268 * resources. If we were doing a datamove, call the 1269 * datamove done routine. 1270 */ 1271 if ((io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) { 1272 /* 1273 * If we asked to send sense data but it wasn't sent, 1274 * queue the I/O back to CTL for later REQUEST SENSE. 1275 */ 1276 if ((done_ccb->ccb_h.flags & CAM_SEND_SENSE) != 0 && 1277 (done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 1278 (done_ccb->ccb_h.status & CAM_SENT_SENSE) == 0 && 1279 (io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref)) != NULL) { 1280 PRIV_INFO(io) = PRIV_INFO( 1281 (union ctl_io *)atio->ccb_h.io_ptr); 1282 ctl_queue_sense(atio->ccb_h.io_ptr); 1283 atio->ccb_h.io_ptr = io; 1284 } 1285 1286 /* Abort ATIO if CTIO sending status has failed. */ 1287 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != 1288 CAM_REQ_CMP) { 1289 done_ccb->ccb_h.func_code = XPT_ABORT; 1290 done_ccb->cab.abort_ccb = (union ccb *)atio; 1291 xpt_action(done_ccb); 1292 } 1293 1294 xpt_release_ccb(done_ccb); 1295 ctlfe_requeue_ccb(periph, (union ccb *)atio, 1296 /* unlock */1); 1297 return; 1298 } else { 1299 struct ctlfe_cmd_info *cmd_info; 1300 struct ccb_scsiio *csio; 1301 1302 csio = &done_ccb->csio; 1303 cmd_info = PRIV_INFO(io); 1304 1305 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1306 1307 /* 1308 * Translate CAM status to CTL status. Success 1309 * does not change the overall, ctl_io status. In 1310 * that case we just set port_status to 0. If we 1311 * have a failure, though, set a data phase error 1312 * for the overall ctl_io. 1313 */ 1314 switch (done_ccb->ccb_h.status & CAM_STATUS_MASK) { 1315 case CAM_REQ_CMP: 1316 io->scsiio.kern_data_resid -= 1317 csio->dxfer_len - csio->resid; 1318 io->io_hdr.port_status = 0; 1319 break; 1320 default: 1321 /* 1322 * XXX KDM we probably need to figure out a 1323 * standard set of errors that the SIM 1324 * drivers should return in the event of a 1325 * data transfer failure. A data phase 1326 * error will at least point the user to a 1327 * data transfer error of some sort. 1328 * Hopefully the SIM printed out some 1329 * additional information to give the user 1330 * a clue what happened. 1331 */ 1332 io->io_hdr.port_status = 0xbad1; 1333 ctl_set_data_phase_error(&io->scsiio); 1334 /* 1335 * XXX KDM figure out residual. 1336 */ 1337 break; 1338 } 1339 /* 1340 * If we had to break this S/G list into multiple 1341 * pieces, figure out where we are in the list, and 1342 * continue sending pieces if necessary. 1343 */ 1344 if ((cmd_info->flags & CTLFE_CMD_PIECEWISE) && 1345 io->io_hdr.port_status == 0 && csio->resid == 0) { 1346 ccb_flags flags; 1347 uint8_t *data_ptr; 1348 uint32_t dxfer_len; 1349 1350 flags = atio->ccb_h.flags & 1351 (CAM_DIS_DISCONNECT| 1352 CAM_TAG_ACTION_VALID); 1353 1354 ctlfedata(softc, io, &flags, &data_ptr, 1355 &dxfer_len, &csio->sglist_cnt); 1356 1357 if (((flags & CAM_SEND_STATUS) == 0) 1358 && (dxfer_len == 0)) { 1359 printf("%s: tag %04x no status or " 1360 "len cdb = %02x\n", __func__, 1361 atio->tag_id, 1362 atio_cdb_ptr(atio)[0]); 1363 printf("%s: tag %04x io status %#x\n", 1364 __func__, atio->tag_id, 1365 io->io_hdr.status); 1366 } 1367 1368 cam_fill_ctio(csio, 1369 /*retries*/ 2, 1370 ctlfedone, 1371 flags, 1372 (flags & CAM_TAG_ACTION_VALID) ? 1373 MSG_SIMPLE_Q_TAG : 0, 1374 atio->tag_id, 1375 atio->init_id, 1376 0, 1377 /*data_ptr*/ data_ptr, 1378 /*dxfer_len*/ dxfer_len, 1379 CTLFE_TIMEOUT * 1000); 1380 1381 csio->ccb_h.flags |= CAM_UNLOCKED; 1382 csio->resid = 0; 1383 csio->ccb_h.ccb_atio = atio; 1384 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 1385 softc->ctios_sent++; 1386 mtx_unlock(mtx); 1387 xpt_action((union ccb *)csio); 1388 } else { 1389 /* 1390 * Release the CTIO. The ATIO will be sent back 1391 * down to the SIM once we send status. 1392 */ 1393 xpt_release_ccb(done_ccb); 1394 mtx_unlock(mtx); 1395 1396 ctl_datamove_done(io, false); 1397 } 1398 return; 1399 } 1400 break; 1401 } 1402 case XPT_IMMEDIATE_NOTIFY: { 1403 union ctl_io *io; 1404 struct ccb_immediate_notify *inot; 1405 int send_ctl_io; 1406 1407 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1408 inot = &done_ccb->cin1; 1409 io = done_ccb->ccb_h.io_ptr; 1410 ctl_zero_io(io); 1411 1412 send_ctl_io = 1; 1413 1414 io->io_hdr.io_type = CTL_IO_TASK; 1415 PRIV_CCB(io) = done_ccb; 1416 inot->ccb_h.io_ptr = io; 1417 io->io_hdr.nexus.initid = inot->initiator_id; 1418 io->io_hdr.nexus.targ_port = bus_softc->port.targ_port; 1419 if (bus_softc->hba_misc & PIM_EXTLUNS) { 1420 io->io_hdr.nexus.targ_lun = ctl_decode_lun( 1421 CAM_EXTLUN_BYTE_SWIZZLE(inot->ccb_h.target_lun)); 1422 } else { 1423 io->io_hdr.nexus.targ_lun = inot->ccb_h.target_lun; 1424 } 1425 /* XXX KDM should this be the tag_id? */ 1426 io->taskio.tag_num = inot->seq_id; 1427 1428 status = inot->ccb_h.status & CAM_STATUS_MASK; 1429 switch (status) { 1430 case CAM_SCSI_BUS_RESET: 1431 io->taskio.task_action = CTL_TASK_BUS_RESET; 1432 break; 1433 case CAM_BDR_SENT: 1434 io->taskio.task_action = CTL_TASK_TARGET_RESET; 1435 break; 1436 case CAM_MESSAGE_RECV: 1437 switch (inot->arg) { 1438 case MSG_ABORT_TASK_SET: 1439 io->taskio.task_action = 1440 CTL_TASK_ABORT_TASK_SET; 1441 break; 1442 case MSG_TARGET_RESET: 1443 io->taskio.task_action = CTL_TASK_TARGET_RESET; 1444 break; 1445 case MSG_ABORT_TASK: 1446 io->taskio.task_action = CTL_TASK_ABORT_TASK; 1447 break; 1448 case MSG_LOGICAL_UNIT_RESET: 1449 io->taskio.task_action = CTL_TASK_LUN_RESET; 1450 break; 1451 case MSG_CLEAR_TASK_SET: 1452 io->taskio.task_action = 1453 CTL_TASK_CLEAR_TASK_SET; 1454 break; 1455 case MSG_CLEAR_ACA: 1456 io->taskio.task_action = CTL_TASK_CLEAR_ACA; 1457 break; 1458 case MSG_QUERY_TASK: 1459 io->taskio.task_action = CTL_TASK_QUERY_TASK; 1460 break; 1461 case MSG_QUERY_TASK_SET: 1462 io->taskio.task_action = 1463 CTL_TASK_QUERY_TASK_SET; 1464 break; 1465 case MSG_QUERY_ASYNC_EVENT: 1466 io->taskio.task_action = 1467 CTL_TASK_QUERY_ASYNC_EVENT; 1468 break; 1469 case MSG_NOOP: 1470 send_ctl_io = 0; 1471 break; 1472 default: 1473 xpt_print(periph->path, 1474 "%s: unsupported INOT message 0x%x\n", 1475 __func__, inot->arg); 1476 send_ctl_io = 0; 1477 break; 1478 } 1479 break; 1480 default: 1481 xpt_print(periph->path, 1482 "%s: unsupported INOT status 0x%x\n", 1483 __func__, status); 1484 /* FALLTHROUGH */ 1485 case CAM_REQ_ABORTED: 1486 case CAM_REQ_INVALID: 1487 case CAM_DEV_NOT_THERE: 1488 case CAM_PROVIDE_FAIL: 1489 ctlfe_free_ccb(periph, done_ccb); 1490 goto out; 1491 } 1492 mtx_unlock(mtx); 1493 if (send_ctl_io != 0) { 1494 ctl_queue(io); 1495 } else { 1496 done_ccb->ccb_h.status = CAM_REQ_INPROG; 1497 done_ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE; 1498 xpt_action(done_ccb); 1499 } 1500 return; 1501 } 1502 case XPT_NOTIFY_ACKNOWLEDGE: 1503 /* Queue this back down to the SIM as an immediate notify. */ 1504 done_ccb->ccb_h.status = CAM_REQ_INPROG; 1505 done_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY; 1506 ctlfe_requeue_ccb(periph, done_ccb, /* unlock */1); 1507 return; 1508 case XPT_SET_SIM_KNOB: 1509 case XPT_GET_SIM_KNOB: 1510 case XPT_GET_SIM_KNOB_OLD: 1511 break; 1512 default: 1513 panic("%s: unexpected CCB type %#x", __func__, 1514 done_ccb->ccb_h.func_code); 1515 break; 1516 } 1517 1518 out: 1519 mtx_unlock(mtx); 1520 } 1521 1522 static void 1523 ctlfe_onoffline(void *arg, int online) 1524 { 1525 struct ctlfe_softc *bus_softc = arg; 1526 union ccb *ccb; 1527 cam_status status; 1528 struct cam_path *path; 1529 int set_wwnn = 0; 1530 1531 status = xpt_create_path(&path, /*periph*/ NULL, bus_softc->path_id, 1532 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 1533 if (status != CAM_REQ_CMP) { 1534 printf("%s: unable to create path!\n", __func__); 1535 return; 1536 } 1537 ccb = xpt_alloc_ccb(); 1538 xpt_setup_ccb(&ccb->ccb_h, path, CAM_PRIORITY_NONE); 1539 ccb->ccb_h.func_code = XPT_GET_SIM_KNOB; 1540 xpt_action(ccb); 1541 1542 /* Check whether we should change WWNs. */ 1543 if (online != 0) { 1544 if ((ccb->knob.xport_specific.valid & KNOB_VALID_ADDRESS) != 0){ 1545 printf("%s: %s current WWNN %#jx\n", __func__, 1546 bus_softc->port_name, 1547 ccb->knob.xport_specific.fc.wwnn); 1548 printf("%s: %s current WWPN %#jx\n", __func__, 1549 bus_softc->port_name, 1550 ccb->knob.xport_specific.fc.wwpn); 1551 1552 /* 1553 * If the user has specified a WWNN/WWPN, send them 1554 * down to the SIM. Otherwise, record what the SIM 1555 * has reported. 1556 */ 1557 if (bus_softc->port.wwnn != 0 && bus_softc->port.wwnn 1558 != ccb->knob.xport_specific.fc.wwnn) { 1559 ccb->knob.xport_specific.fc.wwnn = 1560 bus_softc->port.wwnn; 1561 set_wwnn = 1; 1562 } else { 1563 ctl_port_set_wwns(&bus_softc->port, 1564 true, ccb->knob.xport_specific.fc.wwnn, 1565 false, 0); 1566 } 1567 if (bus_softc->port.wwpn != 0 && bus_softc->port.wwpn 1568 != ccb->knob.xport_specific.fc.wwpn) { 1569 ccb->knob.xport_specific.fc.wwpn = 1570 bus_softc->port.wwpn; 1571 set_wwnn = 1; 1572 } else { 1573 ctl_port_set_wwns(&bus_softc->port, 1574 false, 0, 1575 true, ccb->knob.xport_specific.fc.wwpn); 1576 } 1577 } else { 1578 printf("%s: %s has no valid WWNN/WWPN\n", __func__, 1579 bus_softc->port_name); 1580 if (bus_softc->port.wwnn != 0) { 1581 ccb->knob.xport_specific.fc.wwnn = 1582 bus_softc->port.wwnn; 1583 set_wwnn = 1; 1584 } 1585 if (bus_softc->port.wwpn != 0) { 1586 ccb->knob.xport_specific.fc.wwpn = 1587 bus_softc->port.wwpn; 1588 set_wwnn = 1; 1589 } 1590 } 1591 } 1592 if (set_wwnn) { 1593 ccb->ccb_h.func_code = XPT_SET_SIM_KNOB; 1594 ccb->knob.xport_specific.valid = KNOB_VALID_ADDRESS; 1595 xpt_action(ccb); 1596 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1597 printf("%s: %s (path id %d) failed set WWNs: %#x\n", 1598 __func__, bus_softc->port_name, bus_softc->path_id, 1599 ccb->ccb_h.status); 1600 } else { 1601 printf("%s: %s new WWNN %#jx\n", __func__, 1602 bus_softc->port_name, 1603 ccb->knob.xport_specific.fc.wwnn); 1604 printf("%s: %s new WWPN %#jx\n", __func__, 1605 bus_softc->port_name, 1606 ccb->knob.xport_specific.fc.wwpn); 1607 } 1608 } 1609 1610 /* Check whether we should change role. */ 1611 if ((ccb->knob.xport_specific.valid & KNOB_VALID_ROLE) == 0 || 1612 ((online != 0) ^ 1613 ((ccb->knob.xport_specific.fc.role & KNOB_ROLE_TARGET) != 0)) != 0) { 1614 ccb->ccb_h.func_code = XPT_SET_SIM_KNOB; 1615 ccb->knob.xport_specific.valid = KNOB_VALID_ROLE; 1616 if (online) 1617 ccb->knob.xport_specific.fc.role |= KNOB_ROLE_TARGET; 1618 else 1619 ccb->knob.xport_specific.fc.role &= ~KNOB_ROLE_TARGET; 1620 xpt_action(ccb); 1621 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1622 printf("%s: %s (path id %d) failed %s target role: %#x\n", 1623 __func__, bus_softc->port_name, bus_softc->path_id, 1624 online ? "enable" : "disable", ccb->ccb_h.status); 1625 } else { 1626 printf("%s: %s (path id %d) target role %s succeeded\n", 1627 __func__, bus_softc->port_name, bus_softc->path_id, 1628 online ? "enable" : "disable"); 1629 } 1630 } 1631 1632 xpt_free_path(path); 1633 xpt_free_ccb(ccb); 1634 } 1635 1636 static void 1637 ctlfe_online(void *arg) 1638 { 1639 struct ctlfe_softc *bus_softc; 1640 struct cam_path *path; 1641 cam_status status; 1642 struct ctlfe_lun_softc *lun_softc; 1643 struct cam_periph *periph; 1644 1645 bus_softc = (struct ctlfe_softc *)arg; 1646 1647 /* 1648 * Create the wildcard LUN before bringing the port online. 1649 */ 1650 status = xpt_create_path(&path, /*periph*/ NULL, 1651 bus_softc->path_id, CAM_TARGET_WILDCARD, 1652 CAM_LUN_WILDCARD); 1653 if (status != CAM_REQ_CMP) { 1654 printf("%s: unable to create path for wildcard periph\n", 1655 __func__); 1656 return; 1657 } 1658 1659 lun_softc = malloc(sizeof(*lun_softc), M_CTLFE, M_WAITOK | M_ZERO); 1660 1661 xpt_path_lock(path); 1662 periph = cam_periph_find(path, "ctl"); 1663 if (periph != NULL) { 1664 /* We've already got a periph, no need to alloc a new one. */ 1665 xpt_path_unlock(path); 1666 xpt_free_path(path); 1667 free(lun_softc, M_CTLFE); 1668 return; 1669 } 1670 lun_softc->parent_softc = bus_softc; 1671 lun_softc->flags |= CTLFE_LUN_WILDCARD; 1672 1673 status = cam_periph_alloc(ctlferegister, 1674 ctlfeoninvalidate, 1675 ctlfecleanup, 1676 ctlfestart, 1677 "ctl", 1678 CAM_PERIPH_BIO, 1679 path, 1680 ctlfeasync, 1681 0, 1682 lun_softc); 1683 1684 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1685 const struct cam_status_entry *entry; 1686 1687 entry = cam_fetch_status_entry(status); 1688 printf("%s: CAM error %s (%#x) returned from " 1689 "cam_periph_alloc()\n", __func__, (entry != NULL) ? 1690 entry->status_text : "Unknown", status); 1691 free(lun_softc, M_CTLFE); 1692 } 1693 1694 xpt_path_unlock(path); 1695 ctlfe_onoffline(arg, /*online*/ 1); 1696 xpt_free_path(path); 1697 } 1698 1699 static void 1700 ctlfe_offline(void *arg) 1701 { 1702 struct ctlfe_softc *bus_softc; 1703 struct cam_path *path; 1704 cam_status status; 1705 struct cam_periph *periph; 1706 1707 bus_softc = (struct ctlfe_softc *)arg; 1708 1709 ctlfe_onoffline(arg, /*online*/ 0); 1710 1711 /* 1712 * Disable the wildcard LUN for this port now that we have taken 1713 * the port offline. 1714 */ 1715 status = xpt_create_path(&path, /*periph*/ NULL, 1716 bus_softc->path_id, CAM_TARGET_WILDCARD, 1717 CAM_LUN_WILDCARD); 1718 if (status != CAM_REQ_CMP) { 1719 printf("%s: unable to create path for wildcard periph\n", 1720 __func__); 1721 return; 1722 } 1723 xpt_path_lock(path); 1724 if ((periph = cam_periph_find(path, "ctl")) != NULL) 1725 cam_periph_invalidate(periph); 1726 xpt_path_unlock(path); 1727 xpt_free_path(path); 1728 } 1729 1730 /* 1731 * This will get called to enable a LUN on every bus that is attached to 1732 * CTL. So we only need to create a path/periph for this particular bus. 1733 */ 1734 static int 1735 ctlfe_lun_enable(void *arg, int lun_id) 1736 { 1737 struct ctlfe_softc *bus_softc; 1738 struct ctlfe_lun_softc *softc; 1739 struct cam_path *path; 1740 struct cam_periph *periph; 1741 cam_status status; 1742 1743 bus_softc = (struct ctlfe_softc *)arg; 1744 if (bus_softc->hba_misc & PIM_EXTLUNS) 1745 lun_id = CAM_EXTLUN_BYTE_SWIZZLE(ctl_encode_lun(lun_id)); 1746 1747 status = xpt_create_path(&path, /*periph*/ NULL, 1748 bus_softc->path_id, bus_softc->target_id, lun_id); 1749 /* XXX KDM need some way to return status to CTL here? */ 1750 if (status != CAM_REQ_CMP) { 1751 printf("%s: could not create path, status %#x\n", __func__, 1752 status); 1753 return (1); 1754 } 1755 1756 softc = malloc(sizeof(*softc), M_CTLFE, M_WAITOK | M_ZERO); 1757 xpt_path_lock(path); 1758 periph = cam_periph_find(path, "ctl"); 1759 if (periph != NULL) { 1760 /* We've already got a periph, no need to alloc a new one. */ 1761 xpt_path_unlock(path); 1762 xpt_free_path(path); 1763 free(softc, M_CTLFE); 1764 return (0); 1765 } 1766 softc->parent_softc = bus_softc; 1767 1768 status = cam_periph_alloc(ctlferegister, 1769 ctlfeoninvalidate, 1770 ctlfecleanup, 1771 ctlfestart, 1772 "ctl", 1773 CAM_PERIPH_BIO, 1774 path, 1775 ctlfeasync, 1776 0, 1777 softc); 1778 1779 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1780 const struct cam_status_entry *entry; 1781 1782 entry = cam_fetch_status_entry(status); 1783 printf("%s: CAM error %s (%#x) returned from " 1784 "cam_periph_alloc()\n", __func__, (entry != NULL) ? 1785 entry->status_text : "Unknown", status); 1786 free(softc, M_CTLFE); 1787 } 1788 1789 xpt_path_unlock(path); 1790 xpt_free_path(path); 1791 return (0); 1792 } 1793 1794 /* 1795 * This will get called when the user removes a LUN to disable that LUN 1796 * on every bus that is attached to CTL. 1797 */ 1798 static int 1799 ctlfe_lun_disable(void *arg, int lun_id) 1800 { 1801 struct ctlfe_softc *softc; 1802 struct ctlfe_lun_softc *lun_softc; 1803 1804 softc = (struct ctlfe_softc *)arg; 1805 if (softc->hba_misc & PIM_EXTLUNS) 1806 lun_id = CAM_EXTLUN_BYTE_SWIZZLE(ctl_encode_lun(lun_id)); 1807 1808 mtx_lock(&softc->lun_softc_mtx); 1809 STAILQ_FOREACH(lun_softc, &softc->lun_softc_list, links) { 1810 struct cam_path *path; 1811 1812 path = lun_softc->periph->path; 1813 1814 if ((xpt_path_target_id(path) == softc->target_id) 1815 && (xpt_path_lun_id(path) == lun_id)) { 1816 break; 1817 } 1818 } 1819 if (lun_softc == NULL) { 1820 mtx_unlock(&softc->lun_softc_mtx); 1821 printf("%s: can't find lun %d\n", __func__, lun_id); 1822 return (1); 1823 } 1824 cam_periph_acquire(lun_softc->periph); 1825 mtx_unlock(&softc->lun_softc_mtx); 1826 1827 cam_periph_lock(lun_softc->periph); 1828 cam_periph_invalidate(lun_softc->periph); 1829 cam_periph_unlock(lun_softc->periph); 1830 cam_periph_release(lun_softc->periph); 1831 return (0); 1832 } 1833 1834 static void 1835 ctlfe_dump_sim(struct cam_sim *sim) 1836 { 1837 1838 printf("%s%d: max dev openings: %d, max tagged dev openings: %d\n", 1839 sim->sim_name, sim->unit_number, sim->max_dev_openings, 1840 sim->max_tagged_dev_openings); 1841 } 1842 1843 /* 1844 * Assumes that the SIM lock is held. 1845 */ 1846 static void 1847 ctlfe_dump_queue(struct ctlfe_lun_softc *softc) 1848 { 1849 struct cam_periph *periph = softc->periph; 1850 struct ccb_hdr *hdr; 1851 struct ccb_getdevstats cgds; 1852 int num_items; 1853 1854 memset(&cgds, 0, sizeof(cgds)); 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 */ 1904 static void 1905 ctlfe_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 1928 static void 1929 ctlfe_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 1983 static void 1984 ctlfe_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