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sys/cam/ctl/scsi_ctl.c
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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 if (softc != NULL) { 387 /* 388 * XXX KDM are we certain at this point that there 389 * are no outstanding commands for this frontend? 390 */ 391 mtx_lock(&ctlfe_list_mtx); 392 STAILQ_REMOVE(&ctlfe_softc_list, softc, ctlfe_softc, 393 links); 394 mtx_unlock(&ctlfe_list_mtx); 395 ctl_port_deregister(&softc->port); 396 mtx_destroy(&softc->lun_softc_mtx); 397 free(softc, M_CTLFE); 398 } 399 break; 400 } 401 case AC_CONTRACT: { 402 struct ac_contract *ac; 403 404 ac = (struct ac_contract *)arg; 405 406 switch (ac->contract_number) { 407 case AC_CONTRACT_DEV_CHG: { 408 struct ac_device_changed *dev_chg; 409 int retval; 410 411 dev_chg = (struct ac_device_changed *)ac->contract_data; 412 413 printf("%s: WWPN %#jx port 0x%06x path %u target %u %s\n", 414 __func__, dev_chg->wwpn, dev_chg->port, 415 xpt_path_path_id(path), dev_chg->target, 416 (dev_chg->arrived == 0) ? "left" : "arrived"); 417 418 if (softc == NULL) { 419 printf("%s: CTL port for CAM path %u not " 420 "found!\n", __func__, 421 xpt_path_path_id(path)); 422 break; 423 } 424 if (dev_chg->arrived != 0) { 425 retval = ctl_add_initiator(&softc->port, 426 dev_chg->target, dev_chg->wwpn, NULL); 427 } else { 428 retval = ctl_remove_initiator(&softc->port, 429 dev_chg->target); 430 } 431 432 if (retval < 0) { 433 printf("%s: could not %s port %d iid %u " 434 "WWPN %#jx!\n", __func__, 435 (dev_chg->arrived != 0) ? "add" : 436 "remove", softc->port.targ_port, 437 dev_chg->target, 438 (uintmax_t)dev_chg->wwpn); 439 } 440 break; 441 } 442 default: 443 printf("%s: unsupported contract number %ju\n", 444 __func__, (uintmax_t)ac->contract_number); 445 break; 446 } 447 break; 448 } 449 default: 450 break; 451 } 452 } 453 454 static cam_status 455 ctlferegister(struct cam_periph *periph, void *arg) 456 { 457 struct ctlfe_softc *bus_softc; 458 struct ctlfe_lun_softc *softc; 459 union ccb ccb; 460 cam_status status; 461 int i, acstatus; 462 463 softc = (struct ctlfe_lun_softc *)arg; 464 bus_softc = softc->parent_softc; 465 466 STAILQ_INIT(&softc->work_queue); 467 LIST_INIT(&softc->atio_list); 468 LIST_INIT(&softc->inot_list); 469 softc->periph = periph; 470 periph->softc = softc; 471 472 /* Increase device openings to maximum for the SIM. */ 473 if (bus_softc->sim->max_tagged_dev_openings > 474 bus_softc->sim->max_dev_openings) { 475 cam_release_devq(periph->path, 476 /*relsim_flags*/RELSIM_ADJUST_OPENINGS, 477 /*openings*/bus_softc->sim->max_tagged_dev_openings, 478 /*timeout*/0, 479 /*getcount_only*/1); 480 } 481 482 memset(&ccb, 0, sizeof(ccb)); 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 memset(&ccb, 0, sizeof(ccb)); 618 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NONE); 619 ccb.ccb_h.func_code = XPT_ABORT; 620 LIST_FOREACH(hdr, &softc->atio_list, periph_links.le) { 621 ccb.cab.abort_ccb = (union ccb *)hdr; 622 xpt_action(&ccb); 623 } 624 LIST_FOREACH(hdr, &softc->inot_list, periph_links.le) { 625 ccb.cab.abort_ccb = (union ccb *)hdr; 626 xpt_action(&ccb); 627 } 628 629 /* Disable the LUN in SIM. */ 630 ccb.ccb_h.func_code = XPT_EN_LUN; 631 ccb.cel.grp6_len = 0; 632 ccb.cel.grp7_len = 0; 633 ccb.cel.enable = 0; 634 xpt_action(&ccb); 635 status = (ccb.ccb_h.status & CAM_STATUS_MASK); 636 if (status != CAM_REQ_CMP) { 637 xpt_print(periph->path, "%s: Disable LUN failed, status 0x%x\n", 638 __func__, ccb.ccb_h.status); 639 /* 640 * XXX KDM what do we do now? 641 */ 642 } 643 644 bus_softc = softc->parent_softc; 645 mtx_lock(&bus_softc->lun_softc_mtx); 646 STAILQ_REMOVE(&bus_softc->lun_softc_list, softc, ctlfe_lun_softc, links); 647 mtx_unlock(&bus_softc->lun_softc_mtx); 648 } 649 650 static void 651 ctlfecleanup(struct cam_periph *periph) 652 { 653 struct ctlfe_lun_softc *softc; 654 655 softc = (struct ctlfe_lun_softc *)periph->softc; 656 657 KASSERT(softc->ctios_sent == 0, ("%s: ctios_sent %d != 0", 658 __func__, softc->ctios_sent)); 659 KASSERT(softc->refcount == 0, ("%s: refcount %d != 0", 660 __func__, softc->refcount)); 661 KASSERT(softc->atios_alloced == 0, ("%s: atios_alloced %d != 0", 662 __func__, softc->atios_alloced)); 663 KASSERT(softc->inots_alloced == 0, ("%s: inots_alloced %d != 0", 664 __func__, softc->inots_alloced)); 665 666 free(softc, M_CTLFE); 667 } 668 669 static void 670 ctlfedata(struct ctlfe_lun_softc *softc, union ctl_io *io, 671 ccb_flags *flags, uint8_t **data_ptr, uint32_t *dxfer_len, 672 u_int16_t *sglist_cnt) 673 { 674 struct ctlfe_softc *bus_softc; 675 struct ctlfe_cmd_info *cmd_info; 676 struct ctl_sg_entry *ctl_sglist; 677 bus_dma_segment_t *cam_sglist; 678 size_t off; 679 int i, idx; 680 681 cmd_info = PRIV_INFO(io); 682 bus_softc = softc->parent_softc; 683 684 /* 685 * Set the direction, relative to the initiator. 686 */ 687 *flags &= ~CAM_DIR_MASK; 688 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 689 *flags |= CAM_DIR_IN; 690 else 691 *flags |= CAM_DIR_OUT; 692 693 *flags &= ~CAM_DATA_MASK; 694 idx = cmd_info->cur_transfer_index; 695 off = cmd_info->cur_transfer_off; 696 cmd_info->flags &= ~CTLFE_CMD_PIECEWISE; 697 if (io->scsiio.kern_sg_entries == 0) { /* No S/G list. */ 698 699 /* One time shift for SRR offset. */ 700 off += io->scsiio.ext_data_filled; 701 io->scsiio.ext_data_filled = 0; 702 703 *data_ptr = io->scsiio.kern_data_ptr + off; 704 if (io->scsiio.kern_data_len - off <= bus_softc->maxio) { 705 *dxfer_len = io->scsiio.kern_data_len - off; 706 } else { 707 *dxfer_len = bus_softc->maxio; 708 cmd_info->cur_transfer_off += bus_softc->maxio; 709 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 710 } 711 *sglist_cnt = 0; 712 713 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 714 *flags |= CAM_DATA_PADDR; 715 else 716 *flags |= CAM_DATA_VADDR; 717 } else { /* S/G list with physical or virtual pointers. */ 718 ctl_sglist = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 719 720 /* One time shift for SRR offset. */ 721 while (io->scsiio.ext_data_filled >= ctl_sglist[idx].len - off) { 722 io->scsiio.ext_data_filled -= ctl_sglist[idx].len - off; 723 idx++; 724 off = 0; 725 } 726 off += io->scsiio.ext_data_filled; 727 io->scsiio.ext_data_filled = 0; 728 729 cam_sglist = cmd_info->cam_sglist; 730 *dxfer_len = 0; 731 for (i = 0; i < io->scsiio.kern_sg_entries - idx; i++) { 732 cam_sglist[i].ds_addr = (bus_addr_t)(uintptr_t)ctl_sglist[i + idx].addr + off; 733 if (ctl_sglist[i + idx].len - off <= bus_softc->maxio - *dxfer_len) { 734 cam_sglist[i].ds_len = ctl_sglist[idx + i].len - off; 735 *dxfer_len += cam_sglist[i].ds_len; 736 } else { 737 cam_sglist[i].ds_len = bus_softc->maxio - *dxfer_len; 738 cmd_info->cur_transfer_index = idx + i; 739 cmd_info->cur_transfer_off = cam_sglist[i].ds_len + off; 740 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 741 *dxfer_len += cam_sglist[i].ds_len; 742 if (ctl_sglist[i].len != 0) 743 i++; 744 break; 745 } 746 if (i == (CTLFE_MAX_SEGS - 1) && 747 idx + i < (io->scsiio.kern_sg_entries - 1)) { 748 cmd_info->cur_transfer_index = idx + i + 1; 749 cmd_info->cur_transfer_off = 0; 750 cmd_info->flags |= CTLFE_CMD_PIECEWISE; 751 i++; 752 break; 753 } 754 off = 0; 755 } 756 *sglist_cnt = i; 757 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) 758 *flags |= CAM_DATA_SG_PADDR; 759 else 760 *flags |= CAM_DATA_SG; 761 *data_ptr = (uint8_t *)cam_sglist; 762 } 763 } 764 765 static void 766 ctlfestart(struct cam_periph *periph, union ccb *start_ccb) 767 { 768 struct ctlfe_lun_softc *softc; 769 struct ctlfe_cmd_info *cmd_info; 770 struct ccb_hdr *ccb_h; 771 struct ccb_accept_tio *atio; 772 struct ccb_scsiio *csio; 773 uint8_t *data_ptr; 774 uint32_t dxfer_len; 775 ccb_flags flags; 776 union ctl_io *io; 777 uint8_t scsi_status; 778 779 softc = (struct ctlfe_lun_softc *)periph->softc; 780 781 next: 782 /* Take the ATIO off the work queue */ 783 ccb_h = STAILQ_FIRST(&softc->work_queue); 784 if (ccb_h == NULL) { 785 xpt_release_ccb(start_ccb); 786 return; 787 } 788 STAILQ_REMOVE_HEAD(&softc->work_queue, periph_links.stqe); 789 atio = (struct ccb_accept_tio *)ccb_h; 790 io = (union ctl_io *)ccb_h->io_ptr; 791 csio = &start_ccb->csio; 792 793 flags = atio->ccb_h.flags & 794 (CAM_DIS_DISCONNECT|CAM_TAG_ACTION_VALID|CAM_DIR_MASK); 795 cmd_info = PRIV_INFO(io); 796 cmd_info->cur_transfer_index = 0; 797 cmd_info->cur_transfer_off = 0; 798 cmd_info->flags = 0; 799 800 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) { 801 /* 802 * Datamove call, we need to setup the S/G list. 803 */ 804 ctlfedata(softc, io, &flags, &data_ptr, &dxfer_len, 805 &csio->sglist_cnt); 806 } else { 807 /* 808 * We're done, send status back. 809 */ 810 if ((io->io_hdr.flags & CTL_FLAG_ABORT) && 811 (io->io_hdr.flags & CTL_FLAG_ABORT_STATUS) == 0) { 812 io->io_hdr.flags &= ~CTL_FLAG_STATUS_QUEUED; 813 814 /* Tell the SIM that we've aborted this ATIO */ 815 #ifdef CTLFEDEBUG 816 printf("%s: tag %04x abort\n", __func__, atio->tag_id); 817 #endif 818 KASSERT(atio->ccb_h.func_code == XPT_ACCEPT_TARGET_IO, 819 ("func_code %#x is not ATIO", atio->ccb_h.func_code)); 820 start_ccb->ccb_h.func_code = XPT_ABORT; 821 start_ccb->cab.abort_ccb = (union ccb *)atio; 822 xpt_action(start_ccb); 823 824 ctlfe_requeue_ccb(periph, (union ccb *)atio, 825 /* unlock */0); 826 827 /* XPT_ABORT is not queued, so we can take next I/O. */ 828 goto next; 829 } 830 data_ptr = NULL; 831 dxfer_len = 0; 832 csio->sglist_cnt = 0; 833 } 834 scsi_status = 0; 835 if ((io->io_hdr.flags & CTL_FLAG_STATUS_QUEUED) && 836 (cmd_info->flags & CTLFE_CMD_PIECEWISE) == 0 && 837 ((io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) == 0 || 838 io->io_hdr.status == CTL_SUCCESS)) { 839 flags |= CAM_SEND_STATUS; 840 scsi_status = io->scsiio.scsi_status; 841 csio->sense_len = io->scsiio.sense_len; 842 #ifdef CTLFEDEBUG 843 printf("%s: tag %04x status %x\n", __func__, 844 atio->tag_id, io->io_hdr.status); 845 #endif 846 if (csio->sense_len != 0) { 847 csio->sense_data = io->scsiio.sense_data; 848 flags |= CAM_SEND_SENSE; 849 } 850 } 851 852 #ifdef CTLFEDEBUG 853 printf("%s: %s: tag %04x flags %x ptr %p len %u\n", __func__, 854 (flags & CAM_SEND_STATUS) ? "done" : "datamove", 855 atio->tag_id, flags, data_ptr, dxfer_len); 856 #endif 857 858 /* 859 * Valid combinations: 860 * - CAM_SEND_STATUS, CAM_DATA_SG = 0, dxfer_len = 0, 861 * sglist_cnt = 0 862 * - CAM_SEND_STATUS = 0, CAM_DATA_SG = 0, dxfer_len != 0, 863 * sglist_cnt = 0 864 * - CAM_SEND_STATUS = 0, CAM_DATA_SG, dxfer_len != 0, 865 * sglist_cnt != 0 866 */ 867 #ifdef CTLFEDEBUG 868 if (((flags & CAM_SEND_STATUS) 869 && (((flags & CAM_DATA_SG) != 0) 870 || (dxfer_len != 0) 871 || (csio->sglist_cnt != 0))) 872 || (((flags & CAM_SEND_STATUS) == 0) 873 && (dxfer_len == 0)) 874 || ((flags & CAM_DATA_SG) 875 && (csio->sglist_cnt == 0)) 876 || (((flags & CAM_DATA_SG) == 0) 877 && (csio->sglist_cnt != 0))) { 878 printf("%s: tag %04x cdb %02x flags %#x dxfer_len " 879 "%d sg %u\n", __func__, atio->tag_id, 880 atio_cdb_ptr(atio)[0], flags, dxfer_len, 881 csio->sglist_cnt); 882 printf("%s: tag %04x io status %#x\n", __func__, 883 atio->tag_id, io->io_hdr.status); 884 } 885 #endif 886 cam_fill_ctio(csio, 887 /*retries*/ 2, 888 ctlfedone, 889 flags, 890 (flags & CAM_TAG_ACTION_VALID) ? MSG_SIMPLE_Q_TAG : 0, 891 atio->tag_id, 892 atio->init_id, 893 scsi_status, 894 /*data_ptr*/ data_ptr, 895 /*dxfer_len*/ dxfer_len, 896 /*timeout*/ CTLFE_TIMEOUT * 1000); 897 start_ccb->ccb_h.flags |= CAM_UNLOCKED; 898 start_ccb->ccb_h.ccb_atio = atio; 899 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 900 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 901 io->io_hdr.flags &= ~(CTL_FLAG_DMA_QUEUED | CTL_FLAG_STATUS_QUEUED); 902 903 softc->ctios_sent++; 904 softc->refcount++; 905 cam_periph_unlock(periph); 906 xpt_action(start_ccb); 907 cam_periph_lock(periph); 908 softc->refcount--; 909 910 /* 911 * If we still have work to do, ask for another CCB. 912 */ 913 if (!STAILQ_EMPTY(&softc->work_queue)) 914 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 915 } 916 917 static void 918 ctlfe_drain(void *context, int pending) 919 { 920 struct cam_periph *periph = context; 921 struct ctlfe_lun_softc *softc = periph->softc; 922 923 cam_periph_lock(periph); 924 while (softc->refcount != 0) { 925 cam_periph_sleep(periph, &softc->refcount, PRIBIO, 926 "ctlfe_drain", 1); 927 } 928 cam_periph_unlock(periph); 929 cam_periph_release(periph); 930 } 931 932 static void 933 ctlfe_free_ccb(struct cam_periph *periph, union ccb *ccb) 934 { 935 struct ctlfe_lun_softc *softc; 936 union ctl_io *io; 937 struct ctlfe_cmd_info *cmd_info; 938 939 softc = (struct ctlfe_lun_softc *)periph->softc; 940 io = ccb->ccb_h.io_ptr; 941 942 switch (ccb->ccb_h.func_code) { 943 case XPT_ACCEPT_TARGET_IO: 944 softc->atios_alloced--; 945 cmd_info = PRIV_INFO(io); 946 free(cmd_info, M_CTLFE); 947 break; 948 case XPT_IMMEDIATE_NOTIFY: 949 case XPT_NOTIFY_ACKNOWLEDGE: 950 softc->inots_alloced--; 951 break; 952 default: 953 break; 954 } 955 956 ctl_free_io(io); 957 free(ccb, M_CTLFE); 958 959 KASSERT(softc->atios_alloced >= 0, ("%s: atios_alloced %d < 0", 960 __func__, softc->atios_alloced)); 961 KASSERT(softc->inots_alloced >= 0, ("%s: inots_alloced %d < 0", 962 __func__, softc->inots_alloced)); 963 964 /* 965 * If we have received all of our CCBs, we can release our 966 * reference on the peripheral driver. It will probably go away 967 * now. 968 */ 969 if (softc->atios_alloced == 0 && softc->inots_alloced == 0) { 970 if (softc->refcount == 0) { 971 cam_periph_release_locked(periph); 972 } else { 973 TASK_INIT(&softc->refdrain_task, 0, ctlfe_drain, periph); 974 taskqueue_enqueue(taskqueue_thread, 975 &softc->refdrain_task); 976 } 977 } 978 } 979 980 /* 981 * Send the ATIO/INOT back to the SIM, or free it if periph was invalidated. 982 */ 983 static void 984 ctlfe_requeue_ccb(struct cam_periph *periph, union ccb *ccb, int unlock) 985 { 986 struct ctlfe_lun_softc *softc; 987 struct mtx *mtx; 988 989 if (periph->flags & CAM_PERIPH_INVALID) { 990 mtx = cam_periph_mtx(periph); 991 ctlfe_free_ccb(periph, ccb); 992 if (unlock) 993 mtx_unlock(mtx); 994 return; 995 } 996 softc = (struct ctlfe_lun_softc *)periph->softc; 997 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 998 LIST_INSERT_HEAD(&softc->atio_list, &ccb->ccb_h, periph_links.le); 999 else 1000 LIST_INSERT_HEAD(&softc->inot_list, &ccb->ccb_h, periph_links.le); 1001 if (unlock) 1002 cam_periph_unlock(periph); 1003 1004 /* 1005 * For a wildcard attachment, commands can come in with a specific 1006 * target/lun. Reset the target and LUN fields back to the wildcard 1007 * values before we send them back down to the SIM. 1008 */ 1009 xpt_setup_ccb_flags(&ccb->ccb_h, periph->path, CAM_PRIORITY_NONE, 1010 ccb->ccb_h.flags); 1011 1012 xpt_action(ccb); 1013 } 1014 1015 static int 1016 ctlfe_adjust_cdb(struct ccb_accept_tio *atio, uint32_t offset) 1017 { 1018 uint64_t lba; 1019 uint32_t num_blocks, nbc; 1020 uint8_t *cmdbyt = atio_cdb_ptr(atio); 1021 1022 nbc = offset >> 9; /* ASSUMING 512 BYTE BLOCKS */ 1023 1024 switch (cmdbyt[0]) { 1025 case READ_6: 1026 case WRITE_6: 1027 { 1028 struct scsi_rw_6 *cdb = (struct scsi_rw_6 *)cmdbyt; 1029 lba = scsi_3btoul(cdb->addr); 1030 lba &= 0x1fffff; 1031 num_blocks = cdb->length; 1032 if (num_blocks == 0) 1033 num_blocks = 256; 1034 lba += nbc; 1035 num_blocks -= nbc; 1036 scsi_ulto3b(lba, cdb->addr); 1037 cdb->length = num_blocks; 1038 break; 1039 } 1040 case READ_10: 1041 case WRITE_10: 1042 { 1043 struct scsi_rw_10 *cdb = (struct scsi_rw_10 *)cmdbyt; 1044 lba = scsi_4btoul(cdb->addr); 1045 num_blocks = scsi_2btoul(cdb->length); 1046 lba += nbc; 1047 num_blocks -= nbc; 1048 scsi_ulto4b(lba, cdb->addr); 1049 scsi_ulto2b(num_blocks, cdb->length); 1050 break; 1051 } 1052 case READ_12: 1053 case WRITE_12: 1054 { 1055 struct scsi_rw_12 *cdb = (struct scsi_rw_12 *)cmdbyt; 1056 lba = scsi_4btoul(cdb->addr); 1057 num_blocks = scsi_4btoul(cdb->length); 1058 lba += nbc; 1059 num_blocks -= nbc; 1060 scsi_ulto4b(lba, cdb->addr); 1061 scsi_ulto4b(num_blocks, cdb->length); 1062 break; 1063 } 1064 case READ_16: 1065 case WRITE_16: 1066 { 1067 struct scsi_rw_16 *cdb = (struct scsi_rw_16 *)cmdbyt; 1068 lba = scsi_8btou64(cdb->addr); 1069 num_blocks = scsi_4btoul(cdb->length); 1070 lba += nbc; 1071 num_blocks -= nbc; 1072 scsi_u64to8b(lba, cdb->addr); 1073 scsi_ulto4b(num_blocks, cdb->length); 1074 break; 1075 } 1076 default: 1077 return -1; 1078 } 1079 return (0); 1080 } 1081 1082 static void 1083 ctlfedone(struct cam_periph *periph, union ccb *done_ccb) 1084 { 1085 struct ctlfe_lun_softc *softc; 1086 struct ctlfe_softc *bus_softc; 1087 struct ctlfe_cmd_info *cmd_info; 1088 struct ccb_accept_tio *atio = NULL; 1089 union ctl_io *io = NULL; 1090 struct mtx *mtx; 1091 cam_status status; 1092 1093 KASSERT((done_ccb->ccb_h.flags & CAM_UNLOCKED) != 0, 1094 ("CCB in ctlfedone() without CAM_UNLOCKED flag")); 1095 #ifdef CTLFE_DEBUG 1096 printf("%s: entered, func_code = %#x\n", __func__, 1097 done_ccb->ccb_h.func_code); 1098 #endif 1099 1100 /* 1101 * At this point CTL has no known use case for device queue freezes. 1102 * In case some SIM think different -- drop its freeze right here. 1103 */ 1104 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1105 cam_release_devq(periph->path, 1106 /*relsim_flags*/0, 1107 /*reduction*/0, 1108 /*timeout*/0, 1109 /*getcount_only*/0); 1110 done_ccb->ccb_h.status &= ~CAM_DEV_QFRZN; 1111 } 1112 1113 softc = (struct ctlfe_lun_softc *)periph->softc; 1114 bus_softc = softc->parent_softc; 1115 mtx = cam_periph_mtx(periph); 1116 mtx_lock(mtx); 1117 1118 switch (done_ccb->ccb_h.func_code) { 1119 case XPT_ACCEPT_TARGET_IO: { 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.priority = atio->priority; 1157 io->scsiio.tag_num = atio->tag_id; 1158 switch (atio->tag_action) { 1159 case CAM_TAG_ACTION_NONE: 1160 io->scsiio.tag_type = CTL_TAG_UNTAGGED; 1161 break; 1162 case MSG_SIMPLE_TASK: 1163 io->scsiio.tag_type = CTL_TAG_SIMPLE; 1164 break; 1165 case MSG_HEAD_OF_QUEUE_TASK: 1166 io->scsiio.tag_type = CTL_TAG_HEAD_OF_QUEUE; 1167 break; 1168 case MSG_ORDERED_TASK: 1169 io->scsiio.tag_type = CTL_TAG_ORDERED; 1170 break; 1171 case MSG_ACA_TASK: 1172 io->scsiio.tag_type = CTL_TAG_ACA; 1173 break; 1174 default: 1175 io->scsiio.tag_type = CTL_TAG_UNTAGGED; 1176 printf("%s: unhandled tag type %#x!!\n", __func__, 1177 atio->tag_action); 1178 break; 1179 } 1180 if (atio->cdb_len > sizeof(io->scsiio.cdb)) { 1181 printf("%s: WARNING: CDB len %d > ctl_io space %zd\n", 1182 __func__, atio->cdb_len, sizeof(io->scsiio.cdb)); 1183 } 1184 io->scsiio.cdb_len = min(atio->cdb_len, sizeof(io->scsiio.cdb)); 1185 bcopy(atio_cdb_ptr(atio), io->scsiio.cdb, io->scsiio.cdb_len); 1186 1187 #ifdef CTLFEDEBUG 1188 printf("%s: %u:%u:%u: tag %jx CDB %02x\n", __func__, 1189 io->io_hdr.nexus.initid, 1190 io->io_hdr.nexus.targ_port, 1191 io->io_hdr.nexus.targ_lun, 1192 io->scsiio.tag_num, io->scsiio.cdb[0]); 1193 #endif 1194 1195 ctl_queue(io); 1196 return; 1197 } 1198 case XPT_CONT_TARGET_IO: { 1199 int srr = 0; 1200 uint32_t srr_off = 0; 1201 1202 atio = (struct ccb_accept_tio *)done_ccb->ccb_h.ccb_atio; 1203 io = (union ctl_io *)atio->ccb_h.io_ptr; 1204 1205 softc->ctios_sent--; 1206 #ifdef CTLFEDEBUG 1207 printf("%s: got XPT_CONT_TARGET_IO tag %#x flags %#x\n", 1208 __func__, atio->tag_id, done_ccb->ccb_h.flags); 1209 #endif 1210 /* 1211 * Handle SRR case were the data pointer is pushed back hack 1212 */ 1213 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_MESSAGE_RECV 1214 && done_ccb->csio.msg_ptr != NULL 1215 && done_ccb->csio.msg_ptr[0] == MSG_EXTENDED 1216 && done_ccb->csio.msg_ptr[1] == 5 1217 && done_ccb->csio.msg_ptr[2] == 0) { 1218 srr = 1; 1219 srr_off = 1220 (done_ccb->csio.msg_ptr[3] << 24) 1221 | (done_ccb->csio.msg_ptr[4] << 16) 1222 | (done_ccb->csio.msg_ptr[5] << 8) 1223 | (done_ccb->csio.msg_ptr[6]); 1224 } 1225 1226 /* 1227 * If we have an SRR and we're still sending data, we 1228 * should be able to adjust offsets and cycle again. 1229 * It is possible only if offset is from this datamove. 1230 */ 1231 if (srr && (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) && 1232 srr_off >= io->scsiio.kern_rel_offset && 1233 srr_off < io->scsiio.kern_rel_offset + 1234 io->scsiio.kern_data_len) { 1235 io->scsiio.kern_data_resid = 1236 io->scsiio.kern_rel_offset + 1237 io->scsiio.kern_data_len - srr_off; 1238 io->scsiio.ext_data_filled = srr_off; 1239 io->scsiio.io_hdr.status = CTL_STATUS_NONE; 1240 io->io_hdr.flags |= CTL_FLAG_DMA_QUEUED; 1241 xpt_release_ccb(done_ccb); 1242 STAILQ_INSERT_HEAD(&softc->work_queue, &atio->ccb_h, 1243 periph_links.stqe); 1244 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1245 break; 1246 } 1247 1248 /* 1249 * If status was being sent, the back end data is now history. 1250 * Hack it up and resubmit a new command with the CDB adjusted. 1251 * If the SIM does the right thing, all of the resid math 1252 * should work. 1253 */ 1254 if (srr && (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) { 1255 xpt_release_ccb(done_ccb); 1256 if (ctlfe_adjust_cdb(atio, srr_off) == 0) { 1257 done_ccb = (union ccb *)atio; 1258 goto resubmit; 1259 } 1260 /* 1261 * Fall through to doom.... 1262 */ 1263 } 1264 1265 if ((done_ccb->ccb_h.flags & CAM_SEND_STATUS) && 1266 (done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1267 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1268 1269 /* 1270 * If we were sending status back to the initiator, free up 1271 * resources. If we were doing a datamove, call the 1272 * datamove done routine. 1273 */ 1274 if ((io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) { 1275 /* 1276 * If we asked to send sense data but it wasn't sent, 1277 * queue the I/O back to CTL for later REQUEST SENSE. 1278 */ 1279 if ((done_ccb->ccb_h.flags & CAM_SEND_SENSE) != 0 && 1280 (done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 1281 (done_ccb->ccb_h.status & CAM_SENT_SENSE) == 0 && 1282 (io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref)) != NULL) { 1283 PRIV_INFO(io) = PRIV_INFO( 1284 (union ctl_io *)atio->ccb_h.io_ptr); 1285 ctl_queue_sense(atio->ccb_h.io_ptr); 1286 atio->ccb_h.io_ptr = io; 1287 } 1288 1289 /* Abort ATIO if CTIO sending status has failed. */ 1290 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != 1291 CAM_REQ_CMP) { 1292 done_ccb->ccb_h.func_code = XPT_ABORT; 1293 done_ccb->cab.abort_ccb = (union ccb *)atio; 1294 xpt_action(done_ccb); 1295 } 1296 1297 xpt_release_ccb(done_ccb); 1298 ctlfe_requeue_ccb(periph, (union ccb *)atio, 1299 /* unlock */1); 1300 return; 1301 } else { 1302 struct ctlfe_cmd_info *cmd_info; 1303 struct ccb_scsiio *csio; 1304 1305 csio = &done_ccb->csio; 1306 cmd_info = PRIV_INFO(io); 1307 1308 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1309 1310 /* 1311 * Translate CAM status to CTL status. Success 1312 * does not change the overall, ctl_io status. In 1313 * that case we just set port_status to 0. If we 1314 * have a failure, though, set a data phase error 1315 * for the overall ctl_io. 1316 */ 1317 switch (done_ccb->ccb_h.status & CAM_STATUS_MASK) { 1318 case CAM_REQ_CMP: 1319 io->scsiio.kern_data_resid -= 1320 csio->dxfer_len - csio->resid; 1321 io->io_hdr.port_status = 0; 1322 break; 1323 default: 1324 /* 1325 * XXX KDM we probably need to figure out a 1326 * standard set of errors that the SIM 1327 * drivers should return in the event of a 1328 * data transfer failure. A data phase 1329 * error will at least point the user to a 1330 * data transfer error of some sort. 1331 * Hopefully the SIM printed out some 1332 * additional information to give the user 1333 * a clue what happened. 1334 */ 1335 io->io_hdr.port_status = 0xbad1; 1336 ctl_set_data_phase_error(&io->scsiio); 1337 /* 1338 * XXX KDM figure out residual. 1339 */ 1340 break; 1341 } 1342 /* 1343 * If we had to break this S/G list into multiple 1344 * pieces, figure out where we are in the list, and 1345 * continue sending pieces if necessary. 1346 */ 1347 if ((cmd_info->flags & CTLFE_CMD_PIECEWISE) && 1348 io->io_hdr.port_status == 0 && csio->resid == 0) { 1349 ccb_flags flags; 1350 uint8_t *data_ptr; 1351 uint32_t dxfer_len; 1352 1353 flags = atio->ccb_h.flags & 1354 (CAM_DIS_DISCONNECT| 1355 CAM_TAG_ACTION_VALID); 1356 1357 ctlfedata(softc, io, &flags, &data_ptr, 1358 &dxfer_len, &csio->sglist_cnt); 1359 1360 if (((flags & CAM_SEND_STATUS) == 0) 1361 && (dxfer_len == 0)) { 1362 printf("%s: tag %04x no status or " 1363 "len cdb = %02x\n", __func__, 1364 atio->tag_id, 1365 atio_cdb_ptr(atio)[0]); 1366 printf("%s: tag %04x io status %#x\n", 1367 __func__, atio->tag_id, 1368 io->io_hdr.status); 1369 } 1370 1371 cam_fill_ctio(csio, 1372 /*retries*/ 2, 1373 ctlfedone, 1374 flags, 1375 (flags & CAM_TAG_ACTION_VALID) ? 1376 MSG_SIMPLE_Q_TAG : 0, 1377 atio->tag_id, 1378 atio->init_id, 1379 0, 1380 /*data_ptr*/ data_ptr, 1381 /*dxfer_len*/ dxfer_len, 1382 CTLFE_TIMEOUT * 1000); 1383 1384 csio->ccb_h.flags |= CAM_UNLOCKED; 1385 csio->resid = 0; 1386 csio->ccb_h.ccb_atio = atio; 1387 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 1388 softc->ctios_sent++; 1389 mtx_unlock(mtx); 1390 xpt_action((union ccb *)csio); 1391 } else { 1392 /* 1393 * Release the CTIO. The ATIO will be sent back 1394 * down to the SIM once we send status. 1395 */ 1396 xpt_release_ccb(done_ccb); 1397 mtx_unlock(mtx); 1398 1399 ctl_datamove_done(io, false); 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 mtx_unlock(mtx); 1496 if (send_ctl_io != 0) { 1497 ctl_queue(io); 1498 } else { 1499 done_ccb->ccb_h.status = CAM_REQ_INPROG; 1500 done_ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE; 1501 xpt_action(done_ccb); 1502 } 1503 return; 1504 } 1505 case XPT_NOTIFY_ACKNOWLEDGE: 1506 /* Queue this back down to the SIM as an immediate notify. */ 1507 done_ccb->ccb_h.status = CAM_REQ_INPROG; 1508 done_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY; 1509 ctlfe_requeue_ccb(periph, done_ccb, /* unlock */1); 1510 return; 1511 case XPT_SET_SIM_KNOB: 1512 case XPT_GET_SIM_KNOB: 1513 case XPT_GET_SIM_KNOB_OLD: 1514 break; 1515 default: 1516 panic("%s: unexpected CCB type %#x", __func__, 1517 done_ccb->ccb_h.func_code); 1518 break; 1519 } 1520 1521 out: 1522 mtx_unlock(mtx); 1523 } 1524 1525 static void 1526 ctlfe_onoffline(void *arg, int online) 1527 { 1528 struct ctlfe_softc *bus_softc = arg; 1529 union ccb *ccb; 1530 cam_status status; 1531 struct cam_path *path; 1532 int set_wwnn = 0; 1533 1534 status = xpt_create_path(&path, /*periph*/ NULL, bus_softc->path_id, 1535 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 1536 if (status != CAM_REQ_CMP) { 1537 printf("%s: unable to create path!\n", __func__); 1538 return; 1539 } 1540 ccb = xpt_alloc_ccb(); 1541 xpt_setup_ccb(&ccb->ccb_h, path, CAM_PRIORITY_NONE); 1542 ccb->ccb_h.func_code = XPT_GET_SIM_KNOB; 1543 xpt_action(ccb); 1544 1545 /* Check whether we should change WWNs. */ 1546 if (online != 0) { 1547 if ((ccb->knob.xport_specific.valid & KNOB_VALID_ADDRESS) != 0){ 1548 printf("%s: %s current WWNN %#jx\n", __func__, 1549 bus_softc->port_name, 1550 ccb->knob.xport_specific.fc.wwnn); 1551 printf("%s: %s current WWPN %#jx\n", __func__, 1552 bus_softc->port_name, 1553 ccb->knob.xport_specific.fc.wwpn); 1554 1555 /* 1556 * If the user has specified a WWNN/WWPN, send them 1557 * down to the SIM. Otherwise, record what the SIM 1558 * has reported. 1559 */ 1560 if (bus_softc->port.wwnn != 0 && bus_softc->port.wwnn 1561 != ccb->knob.xport_specific.fc.wwnn) { 1562 ccb->knob.xport_specific.fc.wwnn = 1563 bus_softc->port.wwnn; 1564 set_wwnn = 1; 1565 } else { 1566 ctl_port_set_wwns(&bus_softc->port, 1567 true, ccb->knob.xport_specific.fc.wwnn, 1568 false, 0); 1569 } 1570 if (bus_softc->port.wwpn != 0 && bus_softc->port.wwpn 1571 != ccb->knob.xport_specific.fc.wwpn) { 1572 ccb->knob.xport_specific.fc.wwpn = 1573 bus_softc->port.wwpn; 1574 set_wwnn = 1; 1575 } else { 1576 ctl_port_set_wwns(&bus_softc->port, 1577 false, 0, 1578 true, ccb->knob.xport_specific.fc.wwpn); 1579 } 1580 } else { 1581 printf("%s: %s has no valid WWNN/WWPN\n", __func__, 1582 bus_softc->port_name); 1583 if (bus_softc->port.wwnn != 0) { 1584 ccb->knob.xport_specific.fc.wwnn = 1585 bus_softc->port.wwnn; 1586 set_wwnn = 1; 1587 } 1588 if (bus_softc->port.wwpn != 0) { 1589 ccb->knob.xport_specific.fc.wwpn = 1590 bus_softc->port.wwpn; 1591 set_wwnn = 1; 1592 } 1593 } 1594 } 1595 if (set_wwnn) { 1596 ccb->ccb_h.func_code = XPT_SET_SIM_KNOB; 1597 ccb->knob.xport_specific.valid = KNOB_VALID_ADDRESS; 1598 xpt_action(ccb); 1599 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1600 printf("%s: %s (path id %d) failed set WWNs: %#x\n", 1601 __func__, bus_softc->port_name, bus_softc->path_id, 1602 ccb->ccb_h.status); 1603 } else { 1604 printf("%s: %s new WWNN %#jx\n", __func__, 1605 bus_softc->port_name, 1606 ccb->knob.xport_specific.fc.wwnn); 1607 printf("%s: %s new WWPN %#jx\n", __func__, 1608 bus_softc->port_name, 1609 ccb->knob.xport_specific.fc.wwpn); 1610 } 1611 } 1612 1613 /* Check whether we should change role. */ 1614 if ((ccb->knob.xport_specific.valid & KNOB_VALID_ROLE) == 0 || 1615 ((online != 0) ^ 1616 ((ccb->knob.xport_specific.fc.role & KNOB_ROLE_TARGET) != 0)) != 0) { 1617 ccb->ccb_h.func_code = XPT_SET_SIM_KNOB; 1618 ccb->knob.xport_specific.valid = KNOB_VALID_ROLE; 1619 if (online) 1620 ccb->knob.xport_specific.fc.role |= KNOB_ROLE_TARGET; 1621 else 1622 ccb->knob.xport_specific.fc.role &= ~KNOB_ROLE_TARGET; 1623 xpt_action(ccb); 1624 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1625 printf("%s: %s (path id %d) failed %s target role: %#x\n", 1626 __func__, bus_softc->port_name, bus_softc->path_id, 1627 online ? "enable" : "disable", ccb->ccb_h.status); 1628 } else { 1629 printf("%s: %s (path id %d) target role %s succeeded\n", 1630 __func__, bus_softc->port_name, bus_softc->path_id, 1631 online ? "enable" : "disable"); 1632 } 1633 } 1634 1635 xpt_free_path(path); 1636 xpt_free_ccb(ccb); 1637 } 1638 1639 static void 1640 ctlfe_online(void *arg) 1641 { 1642 struct ctlfe_softc *bus_softc; 1643 struct cam_path *path; 1644 cam_status status; 1645 struct ctlfe_lun_softc *lun_softc; 1646 struct cam_periph *periph; 1647 1648 bus_softc = (struct ctlfe_softc *)arg; 1649 1650 /* 1651 * Create the wildcard LUN before bringing the port online. 1652 */ 1653 status = xpt_create_path(&path, /*periph*/ NULL, 1654 bus_softc->path_id, CAM_TARGET_WILDCARD, 1655 CAM_LUN_WILDCARD); 1656 if (status != CAM_REQ_CMP) { 1657 printf("%s: unable to create path for wildcard periph\n", 1658 __func__); 1659 return; 1660 } 1661 1662 lun_softc = malloc(sizeof(*lun_softc), M_CTLFE, M_WAITOK | M_ZERO); 1663 1664 xpt_path_lock(path); 1665 periph = cam_periph_find(path, "ctl"); 1666 if (periph != NULL) { 1667 /* We've already got a periph, no need to alloc a new one. */ 1668 xpt_path_unlock(path); 1669 xpt_free_path(path); 1670 free(lun_softc, M_CTLFE); 1671 return; 1672 } 1673 lun_softc->parent_softc = bus_softc; 1674 lun_softc->flags |= CTLFE_LUN_WILDCARD; 1675 1676 status = cam_periph_alloc(ctlferegister, 1677 ctlfeoninvalidate, 1678 ctlfecleanup, 1679 ctlfestart, 1680 "ctl", 1681 CAM_PERIPH_BIO, 1682 path, 1683 ctlfeasync, 1684 0, 1685 lun_softc); 1686 1687 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1688 const struct cam_status_entry *entry; 1689 1690 entry = cam_fetch_status_entry(status); 1691 printf("%s: CAM error %s (%#x) returned from " 1692 "cam_periph_alloc()\n", __func__, (entry != NULL) ? 1693 entry->status_text : "Unknown", status); 1694 free(lun_softc, M_CTLFE); 1695 } 1696 1697 xpt_path_unlock(path); 1698 ctlfe_onoffline(arg, /*online*/ 1); 1699 xpt_free_path(path); 1700 } 1701 1702 static void 1703 ctlfe_offline(void *arg) 1704 { 1705 struct ctlfe_softc *bus_softc; 1706 struct cam_path *path; 1707 cam_status status; 1708 struct cam_periph *periph; 1709 1710 bus_softc = (struct ctlfe_softc *)arg; 1711 1712 ctlfe_onoffline(arg, /*online*/ 0); 1713 1714 /* 1715 * Disable the wildcard LUN for this port now that we have taken 1716 * the port offline. 1717 */ 1718 status = xpt_create_path(&path, /*periph*/ NULL, 1719 bus_softc->path_id, CAM_TARGET_WILDCARD, 1720 CAM_LUN_WILDCARD); 1721 if (status != CAM_REQ_CMP) { 1722 printf("%s: unable to create path for wildcard periph\n", 1723 __func__); 1724 return; 1725 } 1726 xpt_path_lock(path); 1727 if ((periph = cam_periph_find(path, "ctl")) != NULL) 1728 cam_periph_invalidate(periph); 1729 xpt_path_unlock(path); 1730 xpt_free_path(path); 1731 } 1732 1733 /* 1734 * This will get called to enable a LUN on every bus that is attached to 1735 * CTL. So we only need to create a path/periph for this particular bus. 1736 */ 1737 static int 1738 ctlfe_lun_enable(void *arg, int lun_id) 1739 { 1740 struct ctlfe_softc *bus_softc; 1741 struct ctlfe_lun_softc *softc; 1742 struct cam_path *path; 1743 struct cam_periph *periph; 1744 cam_status status; 1745 1746 bus_softc = (struct ctlfe_softc *)arg; 1747 if (bus_softc->hba_misc & PIM_EXTLUNS) 1748 lun_id = CAM_EXTLUN_BYTE_SWIZZLE(ctl_encode_lun(lun_id)); 1749 1750 status = xpt_create_path(&path, /*periph*/ NULL, 1751 bus_softc->path_id, bus_softc->target_id, lun_id); 1752 /* XXX KDM need some way to return status to CTL here? */ 1753 if (status != CAM_REQ_CMP) { 1754 printf("%s: could not create path, status %#x\n", __func__, 1755 status); 1756 return (1); 1757 } 1758 1759 softc = malloc(sizeof(*softc), M_CTLFE, M_WAITOK | M_ZERO); 1760 xpt_path_lock(path); 1761 periph = cam_periph_find(path, "ctl"); 1762 if (periph != NULL) { 1763 /* We've already got a periph, no need to alloc a new one. */ 1764 xpt_path_unlock(path); 1765 xpt_free_path(path); 1766 free(softc, M_CTLFE); 1767 return (0); 1768 } 1769 softc->parent_softc = bus_softc; 1770 1771 status = cam_periph_alloc(ctlferegister, 1772 ctlfeoninvalidate, 1773 ctlfecleanup, 1774 ctlfestart, 1775 "ctl", 1776 CAM_PERIPH_BIO, 1777 path, 1778 ctlfeasync, 1779 0, 1780 softc); 1781 1782 if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1783 const struct cam_status_entry *entry; 1784 1785 entry = cam_fetch_status_entry(status); 1786 printf("%s: CAM error %s (%#x) returned from " 1787 "cam_periph_alloc()\n", __func__, (entry != NULL) ? 1788 entry->status_text : "Unknown", status); 1789 free(softc, M_CTLFE); 1790 } 1791 1792 xpt_path_unlock(path); 1793 xpt_free_path(path); 1794 return (0); 1795 } 1796 1797 /* 1798 * This will get called when the user removes a LUN to disable that LUN 1799 * on every bus that is attached to CTL. 1800 */ 1801 static int 1802 ctlfe_lun_disable(void *arg, int lun_id) 1803 { 1804 struct ctlfe_softc *softc; 1805 struct ctlfe_lun_softc *lun_softc; 1806 1807 softc = (struct ctlfe_softc *)arg; 1808 if (softc->hba_misc & PIM_EXTLUNS) 1809 lun_id = CAM_EXTLUN_BYTE_SWIZZLE(ctl_encode_lun(lun_id)); 1810 1811 mtx_lock(&softc->lun_softc_mtx); 1812 STAILQ_FOREACH(lun_softc, &softc->lun_softc_list, links) { 1813 struct cam_path *path; 1814 1815 path = lun_softc->periph->path; 1816 1817 if ((xpt_path_target_id(path) == softc->target_id) 1818 && (xpt_path_lun_id(path) == lun_id)) { 1819 break; 1820 } 1821 } 1822 if (lun_softc == NULL) { 1823 mtx_unlock(&softc->lun_softc_mtx); 1824 printf("%s: can't find lun %d\n", __func__, lun_id); 1825 return (1); 1826 } 1827 cam_periph_acquire(lun_softc->periph); 1828 mtx_unlock(&softc->lun_softc_mtx); 1829 1830 cam_periph_lock(lun_softc->periph); 1831 cam_periph_invalidate(lun_softc->periph); 1832 cam_periph_unlock(lun_softc->periph); 1833 cam_periph_release(lun_softc->periph); 1834 return (0); 1835 } 1836 1837 static void 1838 ctlfe_dump_sim(struct cam_sim *sim) 1839 { 1840 1841 printf("%s%d: max dev openings: %d, max tagged dev openings: %d\n", 1842 sim->sim_name, sim->unit_number, sim->max_dev_openings, 1843 sim->max_tagged_dev_openings); 1844 } 1845 1846 /* 1847 * Assumes that the SIM lock is held. 1848 */ 1849 static void 1850 ctlfe_dump_queue(struct ctlfe_lun_softc *softc) 1851 { 1852 struct cam_periph *periph = softc->periph; 1853 struct ccb_hdr *hdr; 1854 struct ccb_getdevstats cgds; 1855 int num_items; 1856 1857 memset(&cgds, 0, sizeof(cgds)); 1858 xpt_setup_ccb(&cgds.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 1859 cgds.ccb_h.func_code = XPT_GDEV_STATS; 1860 xpt_action((union ccb *)&cgds); 1861 if ((cgds.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1862 xpt_print(periph->path, "devq: openings %d, active %d, " 1863 "allocated %d, queued %d, held %d\n", 1864 cgds.dev_openings, cgds.dev_active, cgds.allocated, 1865 cgds.queued, cgds.held); 1866 } 1867 1868 num_items = 0; 1869 1870 STAILQ_FOREACH(hdr, &softc->work_queue, periph_links.stqe) { 1871 union ctl_io *io = hdr->io_ptr; 1872 1873 num_items++; 1874 1875 /* 1876 * Only regular SCSI I/O is put on the work 1877 * queue, so we can print sense here. There may be no 1878 * sense if it's no the queue for a DMA, but this serves to 1879 * print out the CCB as well. 1880 * 1881 * XXX KDM switch this over to scsi_sense_print() when 1882 * CTL is merged in with CAM. 1883 */ 1884 ctl_io_error_print(io, NULL); 1885 1886 /* 1887 * Print DMA status if we are DMA_QUEUED. 1888 */ 1889 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) { 1890 xpt_print(periph->path, 1891 "Total %u, Current %u, Resid %u\n", 1892 io->scsiio.kern_total_len, 1893 io->scsiio.kern_data_len, 1894 io->scsiio.kern_data_resid); 1895 } 1896 } 1897 1898 xpt_print(periph->path, "%d requests waiting for CCBs\n", num_items); 1899 xpt_print(periph->path, "%d CTIOs outstanding\n", softc->ctios_sent); 1900 } 1901 1902 /* 1903 * Datamove/done routine called by CTL. Put ourselves on the queue to 1904 * receive a CCB from CAM so we can queue the continue I/O request down 1905 * to the adapter. 1906 */ 1907 static void 1908 ctlfe_datamove(union ctl_io *io) 1909 { 1910 union ccb *ccb; 1911 struct cam_periph *periph; 1912 struct ctlfe_lun_softc *softc; 1913 1914 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 1915 ("%s: unexpected I/O type %x", __func__, io->io_hdr.io_type)); 1916 1917 io->scsiio.ext_data_filled = 0; 1918 ccb = PRIV_CCB(io); 1919 periph = xpt_path_periph(ccb->ccb_h.path); 1920 cam_periph_lock(periph); 1921 softc = (struct ctlfe_lun_softc *)periph->softc; 1922 io->io_hdr.flags |= CTL_FLAG_DMA_QUEUED; 1923 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) 1924 io->io_hdr.flags |= CTL_FLAG_STATUS_QUEUED; 1925 STAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h, 1926 periph_links.stqe); 1927 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1928 cam_periph_unlock(periph); 1929 } 1930 1931 static void 1932 ctlfe_done(union ctl_io *io) 1933 { 1934 union ccb *ccb; 1935 struct cam_periph *periph; 1936 struct ctlfe_lun_softc *softc; 1937 1938 ccb = PRIV_CCB(io); 1939 periph = xpt_path_periph(ccb->ccb_h.path); 1940 cam_periph_lock(periph); 1941 softc = (struct ctlfe_lun_softc *)periph->softc; 1942 1943 if (io->io_hdr.io_type == CTL_IO_TASK) { 1944 /* 1945 * Send the notify acknowledge down to the SIM, to let it 1946 * know we processed the task management command. 1947 */ 1948 ccb->ccb_h.status = CAM_REQ_INPROG; 1949 ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE; 1950 switch (io->taskio.task_status) { 1951 case CTL_TASK_FUNCTION_COMPLETE: 1952 ccb->cna2.arg = CAM_RSP_TMF_COMPLETE; 1953 break; 1954 case CTL_TASK_FUNCTION_SUCCEEDED: 1955 ccb->cna2.arg = CAM_RSP_TMF_SUCCEEDED; 1956 ccb->ccb_h.flags |= CAM_SEND_STATUS; 1957 break; 1958 case CTL_TASK_FUNCTION_REJECTED: 1959 ccb->cna2.arg = CAM_RSP_TMF_REJECTED; 1960 ccb->ccb_h.flags |= CAM_SEND_STATUS; 1961 break; 1962 case CTL_TASK_LUN_DOES_NOT_EXIST: 1963 ccb->cna2.arg = CAM_RSP_TMF_INCORRECT_LUN; 1964 ccb->ccb_h.flags |= CAM_SEND_STATUS; 1965 break; 1966 case CTL_TASK_FUNCTION_NOT_SUPPORTED: 1967 ccb->cna2.arg = CAM_RSP_TMF_FAILED; 1968 ccb->ccb_h.flags |= CAM_SEND_STATUS; 1969 break; 1970 } 1971 ccb->cna2.arg |= scsi_3btoul(io->taskio.task_resp) << 8; 1972 xpt_action(ccb); 1973 } else if (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) { 1974 ctlfe_requeue_ccb(periph, ccb, /* unlock */1); 1975 return; 1976 } else { 1977 io->io_hdr.flags |= CTL_FLAG_STATUS_QUEUED; 1978 STAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h, 1979 periph_links.stqe); 1980 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1981 } 1982 1983 cam_periph_unlock(periph); 1984 } 1985 1986 static void 1987 ctlfe_dump(void) 1988 { 1989 struct ctlfe_softc *bus_softc; 1990 struct ctlfe_lun_softc *lun_softc; 1991 1992 STAILQ_FOREACH(bus_softc, &ctlfe_softc_list, links) { 1993 ctlfe_dump_sim(bus_softc->sim); 1994 STAILQ_FOREACH(lun_softc, &bus_softc->lun_softc_list, links) 1995 ctlfe_dump_queue(lun_softc); 1996 } 1997 }
Cache object: 6770476110aaef3dba46df91eefaf90f
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