1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2015 Netflix, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer, 12 * without modification, immediately at the beginning of the file. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * derived from ata_xpt.c: Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org> 29 */ 30 31 #include <sys/cdefs.h> 32 __FBSDID("$FreeBSD$"); 33 34 #include <sys/param.h> 35 #include <sys/bus.h> 36 #include <sys/endian.h> 37 #include <sys/systm.h> 38 #include <sys/types.h> 39 #include <sys/malloc.h> 40 #include <sys/kernel.h> 41 #include <sys/time.h> 42 #include <sys/conf.h> 43 #include <sys/fcntl.h> 44 #include <sys/interrupt.h> 45 #include <sys/sbuf.h> 46 47 #include <sys/lock.h> 48 #include <sys/mutex.h> 49 #include <sys/sysctl.h> 50 51 #include <cam/cam.h> 52 #include <cam/cam_ccb.h> 53 #include <cam/cam_queue.h> 54 #include <cam/cam_periph.h> 55 #include <cam/cam_sim.h> 56 #include <cam/cam_xpt.h> 57 #include <cam/cam_xpt_sim.h> 58 #include <cam/cam_xpt_periph.h> 59 #include <cam/cam_xpt_internal.h> 60 #include <cam/cam_debug.h> 61 62 #include <cam/scsi/scsi_all.h> 63 #include <cam/scsi/scsi_message.h> 64 #include <cam/nvme/nvme_all.h> 65 #include <machine/stdarg.h> /* for xpt_print below */ 66 #include "opt_cam.h" 67 68 struct nvme_quirk_entry { 69 u_int quirks; 70 #define CAM_QUIRK_MAXTAGS 1 71 u_int mintags; 72 u_int maxtags; 73 }; 74 75 /* Not even sure why we need this */ 76 static periph_init_t nvme_probe_periph_init; 77 78 static struct periph_driver nvme_probe_driver = 79 { 80 nvme_probe_periph_init, "nvme_probe", 81 TAILQ_HEAD_INITIALIZER(nvme_probe_driver.units), /* generation */ 0, 82 CAM_PERIPH_DRV_EARLY 83 }; 84 85 PERIPHDRIVER_DECLARE(nvme_probe, nvme_probe_driver); 86 87 typedef enum { 88 NVME_PROBE_IDENTIFY, 89 NVME_PROBE_DONE, 90 NVME_PROBE_INVALID, 91 NVME_PROBE_RESET 92 } nvme_probe_action; 93 94 static char *nvme_probe_action_text[] = { 95 "NVME_PROBE_IDENTIFY", 96 "NVME_PROBE_DONE", 97 "NVME_PROBE_INVALID", 98 "NVME_PROBE_RESET", 99 }; 100 101 #define NVME_PROBE_SET_ACTION(softc, newaction) \ 102 do { \ 103 char **text; \ 104 text = nvme_probe_action_text; \ 105 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \ 106 ("Probe %s to %s\n", text[(softc)->action], \ 107 text[(newaction)])); \ 108 (softc)->action = (newaction); \ 109 } while(0) 110 111 typedef enum { 112 NVME_PROBE_NO_ANNOUNCE = 0x04 113 } nvme_probe_flags; 114 115 typedef struct { 116 TAILQ_HEAD(, ccb_hdr) request_ccbs; 117 nvme_probe_action action; 118 nvme_probe_flags flags; 119 int restart; 120 struct cam_periph *periph; 121 } nvme_probe_softc; 122 123 static struct nvme_quirk_entry nvme_quirk_table[] = 124 { 125 { 126 // { 127 // T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 128 // /*vendor*/"*", /*product*/"*", /*revision*/"*" 129 // }, 130 .quirks = 0, .mintags = 0, .maxtags = 0 131 }, 132 }; 133 134 static const int nvme_quirk_table_size = 135 sizeof(nvme_quirk_table) / sizeof(*nvme_quirk_table); 136 137 static cam_status nvme_probe_register(struct cam_periph *periph, 138 void *arg); 139 static void nvme_probe_schedule(struct cam_periph *nvme_probe_periph); 140 static void nvme_probe_start(struct cam_periph *periph, union ccb *start_ccb); 141 static void nvme_probe_cleanup(struct cam_periph *periph); 142 //static void nvme_find_quirk(struct cam_ed *device); 143 static void nvme_scan_lun(struct cam_periph *periph, 144 struct cam_path *path, cam_flags flags, 145 union ccb *ccb); 146 static struct cam_ed * 147 nvme_alloc_device(struct cam_eb *bus, struct cam_et *target, 148 lun_id_t lun_id); 149 static void nvme_device_transport(struct cam_path *path); 150 static void nvme_dev_async(u_int32_t async_code, 151 struct cam_eb *bus, 152 struct cam_et *target, 153 struct cam_ed *device, 154 void *async_arg); 155 static void nvme_action(union ccb *start_ccb); 156 static void nvme_announce_periph(struct cam_periph *periph); 157 static void nvme_proto_announce(struct cam_ed *device); 158 static void nvme_proto_denounce(struct cam_ed *device); 159 static void nvme_proto_debug_out(union ccb *ccb); 160 161 static struct xpt_xport_ops nvme_xport_ops = { 162 .alloc_device = nvme_alloc_device, 163 .action = nvme_action, 164 .async = nvme_dev_async, 165 .announce = nvme_announce_periph, 166 }; 167 #define NVME_XPT_XPORT(x, X) \ 168 static struct xpt_xport nvme_xport_ ## x = { \ 169 .xport = XPORT_ ## X, \ 170 .name = #x, \ 171 .ops = &nvme_xport_ops, \ 172 }; \ 173 CAM_XPT_XPORT(nvme_xport_ ## x); 174 175 NVME_XPT_XPORT(nvme, NVME); 176 177 #undef NVME_XPT_XPORT 178 179 static struct xpt_proto_ops nvme_proto_ops = { 180 .announce = nvme_proto_announce, 181 .denounce = nvme_proto_denounce, 182 .debug_out = nvme_proto_debug_out, 183 }; 184 static struct xpt_proto nvme_proto = { 185 .proto = PROTO_NVME, 186 .name = "nvme", 187 .ops = &nvme_proto_ops, 188 }; 189 CAM_XPT_PROTO(nvme_proto); 190 191 static void 192 nvme_probe_periph_init() 193 { 194 195 } 196 197 static cam_status 198 nvme_probe_register(struct cam_periph *periph, void *arg) 199 { 200 union ccb *request_ccb; /* CCB representing the probe request */ 201 nvme_probe_softc *softc; 202 203 request_ccb = (union ccb *)arg; 204 if (request_ccb == NULL) { 205 printf("nvme_probe_register: no probe CCB, " 206 "can't register device\n"); 207 return(CAM_REQ_CMP_ERR); 208 } 209 210 softc = (nvme_probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_ZERO | M_NOWAIT); 211 212 if (softc == NULL) { 213 printf("nvme_probe_register: Unable to probe new device. " 214 "Unable to allocate softc\n"); 215 return(CAM_REQ_CMP_ERR); 216 } 217 TAILQ_INIT(&softc->request_ccbs); 218 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 219 periph_links.tqe); 220 softc->flags = 0; 221 periph->softc = softc; 222 softc->periph = periph; 223 softc->action = NVME_PROBE_INVALID; 224 if (cam_periph_acquire(periph) != 0) 225 return (CAM_REQ_CMP_ERR); 226 227 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 228 229 // nvme_device_transport(periph->path); 230 nvme_probe_schedule(periph); 231 232 return(CAM_REQ_CMP); 233 } 234 235 static void 236 nvme_probe_schedule(struct cam_periph *periph) 237 { 238 union ccb *ccb; 239 nvme_probe_softc *softc; 240 241 softc = (nvme_probe_softc *)periph->softc; 242 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 243 244 NVME_PROBE_SET_ACTION(softc, NVME_PROBE_IDENTIFY); 245 246 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 247 softc->flags |= NVME_PROBE_NO_ANNOUNCE; 248 else 249 softc->flags &= ~NVME_PROBE_NO_ANNOUNCE; 250 251 xpt_schedule(periph, CAM_PRIORITY_XPT); 252 } 253 254 static void 255 nvme_probe_start(struct cam_periph *periph, union ccb *start_ccb) 256 { 257 struct ccb_nvmeio *nvmeio; 258 struct ccb_scsiio *csio; 259 nvme_probe_softc *softc; 260 struct cam_path *path; 261 const struct nvme_namespace_data *nvme_data; 262 lun_id_t lun; 263 264 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("nvme_probe_start\n")); 265 266 softc = (nvme_probe_softc *)periph->softc; 267 path = start_ccb->ccb_h.path; 268 nvmeio = &start_ccb->nvmeio; 269 csio = &start_ccb->csio; 270 nvme_data = periph->path->device->nvme_data; 271 272 if (softc->restart) { 273 softc->restart = 0; 274 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) 275 NVME_PROBE_SET_ACTION(softc, NVME_PROBE_RESET); 276 else 277 NVME_PROBE_SET_ACTION(softc, NVME_PROBE_IDENTIFY); 278 } 279 280 /* 281 * Other transports have to ask their SIM to do a lot of action. 282 * NVMe doesn't, so don't do the dance. Just do things 283 * directly. 284 */ 285 switch (softc->action) { 286 case NVME_PROBE_RESET: 287 /* FALLTHROUGH */ 288 case NVME_PROBE_IDENTIFY: 289 nvme_device_transport(path); 290 /* 291 * Test for lun == CAM_LUN_WILDCARD is lame, but 292 * appears to be necessary here. XXX 293 */ 294 lun = xpt_path_lun_id(periph->path); 295 if (lun == CAM_LUN_WILDCARD || 296 periph->path->device->flags & CAM_DEV_UNCONFIGURED) { 297 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 298 xpt_acquire_device(path->device); 299 start_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 300 xpt_action(start_ccb); 301 xpt_async(AC_FOUND_DEVICE, path, start_ccb); 302 } 303 NVME_PROBE_SET_ACTION(softc, NVME_PROBE_DONE); 304 break; 305 default: 306 panic("nvme_probe_start: invalid action state 0x%x\n", softc->action); 307 } 308 /* 309 * Probing is now done. We need to complete any lingering items 310 * in the queue, though there shouldn't be any. 311 */ 312 xpt_release_ccb(start_ccb); 313 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 314 while ((start_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs))) { 315 TAILQ_REMOVE(&softc->request_ccbs, 316 &start_ccb->ccb_h, periph_links.tqe); 317 start_ccb->ccb_h.status = CAM_REQ_CMP; 318 xpt_done(start_ccb); 319 } 320 cam_periph_invalidate(periph); 321 cam_periph_release_locked(periph); 322 } 323 324 static void 325 nvme_probe_cleanup(struct cam_periph *periph) 326 { 327 328 free(periph->softc, M_CAMXPT); 329 } 330 331 #if 0 332 /* XXX should be used, don't delete */ 333 static void 334 nvme_find_quirk(struct cam_ed *device) 335 { 336 struct nvme_quirk_entry *quirk; 337 caddr_t match; 338 339 match = cam_quirkmatch((caddr_t)&device->nvme_data, 340 (caddr_t)nvme_quirk_table, 341 nvme_quirk_table_size, 342 sizeof(*nvme_quirk_table), nvme_identify_match); 343 344 if (match == NULL) 345 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 346 347 quirk = (struct nvme_quirk_entry *)match; 348 device->quirk = quirk; 349 if (quirk->quirks & CAM_QUIRK_MAXTAGS) { 350 device->mintags = quirk->mintags; 351 device->maxtags = quirk->maxtags; 352 } 353 } 354 #endif 355 356 static void 357 nvme_scan_lun(struct cam_periph *periph, struct cam_path *path, 358 cam_flags flags, union ccb *request_ccb) 359 { 360 struct ccb_pathinq cpi; 361 cam_status status; 362 struct cam_periph *old_periph; 363 int lock; 364 365 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("nvme_scan_lun\n")); 366 367 xpt_path_inq(&cpi, path); 368 369 if (cpi.ccb_h.status != CAM_REQ_CMP) { 370 if (request_ccb != NULL) { 371 request_ccb->ccb_h.status = cpi.ccb_h.status; 372 xpt_done(request_ccb); 373 } 374 return; 375 } 376 377 if (xpt_path_lun_id(path) == CAM_LUN_WILDCARD) { 378 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("nvme_scan_lun ignoring bus\n")); 379 request_ccb->ccb_h.status = CAM_REQ_CMP; /* XXX signal error ? */ 380 xpt_done(request_ccb); 381 return; 382 } 383 384 lock = (xpt_path_owned(path) == 0); 385 if (lock) 386 xpt_path_lock(path); 387 if ((old_periph = cam_periph_find(path, "nvme_probe")) != NULL) { 388 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 389 nvme_probe_softc *softc; 390 391 softc = (nvme_probe_softc *)old_periph->softc; 392 TAILQ_INSERT_TAIL(&softc->request_ccbs, 393 &request_ccb->ccb_h, periph_links.tqe); 394 softc->restart = 1; 395 CAM_DEBUG(path, CAM_DEBUG_TRACE, 396 ("restarting nvme_probe device\n")); 397 } else { 398 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 399 CAM_DEBUG(path, CAM_DEBUG_TRACE, 400 ("Failing to restart nvme_probe device\n")); 401 xpt_done(request_ccb); 402 } 403 } else { 404 CAM_DEBUG(path, CAM_DEBUG_TRACE, 405 ("Adding nvme_probe device\n")); 406 status = cam_periph_alloc(nvme_probe_register, NULL, nvme_probe_cleanup, 407 nvme_probe_start, "nvme_probe", 408 CAM_PERIPH_BIO, 409 request_ccb->ccb_h.path, NULL, 0, 410 request_ccb); 411 412 if (status != CAM_REQ_CMP) { 413 xpt_print(path, "xpt_scan_lun: cam_alloc_periph " 414 "returned an error, can't continue probe\n"); 415 request_ccb->ccb_h.status = status; 416 xpt_done(request_ccb); 417 } 418 } 419 if (lock) 420 xpt_path_unlock(path); 421 } 422 423 static struct cam_ed * 424 nvme_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 425 { 426 struct nvme_quirk_entry *quirk; 427 struct cam_ed *device; 428 429 device = xpt_alloc_device(bus, target, lun_id); 430 if (device == NULL) 431 return (NULL); 432 433 /* 434 * Take the default quirk entry until we have inquiry 435 * data from nvme and can determine a better quirk to use. 436 */ 437 quirk = &nvme_quirk_table[nvme_quirk_table_size - 1]; 438 device->quirk = (void *)quirk; 439 device->mintags = 0; 440 device->maxtags = 0; 441 device->inq_flags = 0; 442 device->queue_flags = 0; 443 device->device_id = NULL; /* XXX Need to set this somewhere */ 444 device->device_id_len = 0; 445 device->serial_num = NULL; /* XXX Need to set this somewhere */ 446 device->serial_num_len = 0; 447 return (device); 448 } 449 450 static void 451 nvme_device_transport(struct cam_path *path) 452 { 453 struct ccb_pathinq cpi; 454 struct ccb_trans_settings cts; 455 /* XXX get data from nvme namespace and other info ??? */ 456 457 /* Get transport information from the SIM */ 458 xpt_path_inq(&cpi, path); 459 460 path->device->transport = cpi.transport; 461 path->device->transport_version = cpi.transport_version; 462 463 path->device->protocol = cpi.protocol; 464 path->device->protocol_version = cpi.protocol_version; 465 466 /* Tell the controller what we think */ 467 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 468 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 469 cts.type = CTS_TYPE_CURRENT_SETTINGS; 470 cts.transport = path->device->transport; 471 cts.transport_version = path->device->transport_version; 472 cts.protocol = path->device->protocol; 473 cts.protocol_version = path->device->protocol_version; 474 cts.proto_specific.valid = 0; 475 cts.xport_specific.valid = 0; 476 xpt_action((union ccb *)&cts); 477 } 478 479 static void 480 nvme_dev_advinfo(union ccb *start_ccb) 481 { 482 struct cam_ed *device; 483 struct ccb_dev_advinfo *cdai; 484 off_t amt; 485 486 start_ccb->ccb_h.status = CAM_REQ_INVALID; 487 device = start_ccb->ccb_h.path->device; 488 cdai = &start_ccb->cdai; 489 switch(cdai->buftype) { 490 case CDAI_TYPE_SCSI_DEVID: 491 if (cdai->flags & CDAI_FLAG_STORE) 492 return; 493 cdai->provsiz = device->device_id_len; 494 if (device->device_id_len == 0) 495 break; 496 amt = device->device_id_len; 497 if (cdai->provsiz > cdai->bufsiz) 498 amt = cdai->bufsiz; 499 memcpy(cdai->buf, device->device_id, amt); 500 break; 501 case CDAI_TYPE_SERIAL_NUM: 502 if (cdai->flags & CDAI_FLAG_STORE) 503 return; 504 cdai->provsiz = device->serial_num_len; 505 if (device->serial_num_len == 0) 506 break; 507 amt = device->serial_num_len; 508 if (cdai->provsiz > cdai->bufsiz) 509 amt = cdai->bufsiz; 510 memcpy(cdai->buf, device->serial_num, amt); 511 break; 512 case CDAI_TYPE_PHYS_PATH: 513 if (cdai->flags & CDAI_FLAG_STORE) { 514 if (device->physpath != NULL) 515 free(device->physpath, M_CAMXPT); 516 device->physpath_len = cdai->bufsiz; 517 /* Clear existing buffer if zero length */ 518 if (cdai->bufsiz == 0) 519 break; 520 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 521 if (device->physpath == NULL) { 522 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 523 return; 524 } 525 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 526 } else { 527 cdai->provsiz = device->physpath_len; 528 if (device->physpath_len == 0) 529 break; 530 amt = device->physpath_len; 531 if (cdai->provsiz > cdai->bufsiz) 532 amt = cdai->bufsiz; 533 memcpy(cdai->buf, device->physpath, amt); 534 } 535 break; 536 case CDAI_TYPE_NVME_CNTRL: 537 if (cdai->flags & CDAI_FLAG_STORE) 538 return; 539 amt = sizeof(struct nvme_controller_data); 540 cdai->provsiz = amt; 541 if (amt > cdai->bufsiz) 542 amt = cdai->bufsiz; 543 memcpy(cdai->buf, device->nvme_cdata, amt); 544 break; 545 case CDAI_TYPE_NVME_NS: 546 if (cdai->flags & CDAI_FLAG_STORE) 547 return; 548 amt = sizeof(struct nvme_namespace_data); 549 cdai->provsiz = amt; 550 if (amt > cdai->bufsiz) 551 amt = cdai->bufsiz; 552 memcpy(cdai->buf, device->nvme_data, amt); 553 break; 554 default: 555 return; 556 } 557 start_ccb->ccb_h.status = CAM_REQ_CMP; 558 559 if (cdai->flags & CDAI_FLAG_STORE) { 560 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 561 (void *)(uintptr_t)cdai->buftype); 562 } 563 } 564 565 static void 566 nvme_action(union ccb *start_ccb) 567 { 568 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, 569 ("nvme_action: func= %#x\n", start_ccb->ccb_h.func_code)); 570 571 switch (start_ccb->ccb_h.func_code) { 572 case XPT_SCAN_BUS: 573 case XPT_SCAN_TGT: 574 case XPT_SCAN_LUN: 575 nvme_scan_lun(start_ccb->ccb_h.path->periph, 576 start_ccb->ccb_h.path, start_ccb->crcn.flags, 577 start_ccb); 578 break; 579 case XPT_DEV_ADVINFO: 580 nvme_dev_advinfo(start_ccb); 581 break; 582 583 default: 584 xpt_action_default(start_ccb); 585 break; 586 } 587 } 588 589 /* 590 * Handle any per-device event notifications that require action by the XPT. 591 */ 592 static void 593 nvme_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 594 struct cam_ed *device, void *async_arg) 595 { 596 597 /* 598 * We only need to handle events for real devices. 599 */ 600 if (target->target_id == CAM_TARGET_WILDCARD 601 || device->lun_id == CAM_LUN_WILDCARD) 602 return; 603 604 if (async_code == AC_LOST_DEVICE && 605 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 606 device->flags |= CAM_DEV_UNCONFIGURED; 607 xpt_release_device(device); 608 } 609 } 610 611 static void 612 nvme_announce_periph(struct cam_periph *periph) 613 { 614 struct ccb_pathinq cpi; 615 struct ccb_trans_settings cts; 616 struct cam_path *path = periph->path; 617 struct ccb_trans_settings_nvme *nvmex; 618 619 cam_periph_assert(periph, MA_OWNED); 620 621 /* Ask the SIM for connection details */ 622 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 623 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 624 cts.type = CTS_TYPE_CURRENT_SETTINGS; 625 xpt_action((union ccb*)&cts); 626 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 627 return; 628 nvmex = &cts.xport_specific.nvme; 629 630 /* Ask the SIM for its base transfer speed */ 631 xpt_path_inq(&cpi, periph->path); 632 printf("%s%d: nvme version %d.%d x%d (max x%d) lanes PCIe Gen%d (max Gen%d) link", 633 periph->periph_name, periph->unit_number, 634 NVME_MAJOR(nvmex->spec), 635 NVME_MINOR(nvmex->spec), 636 nvmex->lanes, nvmex->max_lanes, 637 nvmex->speed, nvmex->max_speed); 638 printf("\n"); 639 } 640 641 static void 642 nvme_proto_announce(struct cam_ed *device) 643 { 644 struct sbuf sb; 645 char buffer[120]; 646 647 sbuf_new(&sb, buffer, sizeof(buffer), SBUF_FIXEDLEN); 648 nvme_print_ident(device->nvme_cdata, device->nvme_data, &sb); 649 sbuf_finish(&sb); 650 sbuf_putbuf(&sb); 651 } 652 653 static void 654 nvme_proto_denounce(struct cam_ed *device) 655 { 656 657 nvme_proto_announce(device); 658 } 659 660 static void 661 nvme_proto_debug_out(union ccb *ccb) 662 { 663 char cdb_str[(sizeof(struct nvme_command) * 3) + 1]; 664 665 if (ccb->ccb_h.func_code != XPT_NVME_IO) 666 return; 667 668 CAM_DEBUG(ccb->ccb_h.path, 669 CAM_DEBUG_CDB,("%s. NCB: %s\n", nvme_op_string(&ccb->nvmeio.cmd), 670 nvme_cmd_string(&ccb->nvmeio.cmd, cdb_str, sizeof(cdb_str)))); 671 } 672 673