1 /*- 2 * Copyright (c) 2015 Netflix, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * derived from ata_xpt.c: Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org> 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/param.h> 33 #include <sys/bus.h> 34 #include <sys/endian.h> 35 #include <sys/systm.h> 36 #include <sys/types.h> 37 #include <sys/malloc.h> 38 #include <sys/kernel.h> 39 #include <sys/time.h> 40 #include <sys/conf.h> 41 #include <sys/fcntl.h> 42 #include <sys/interrupt.h> 43 #include <sys/sbuf.h> 44 45 #include <sys/lock.h> 46 #include <sys/mutex.h> 47 #include <sys/sysctl.h> 48 49 #include <cam/cam.h> 50 #include <cam/cam_ccb.h> 51 #include <cam/cam_queue.h> 52 #include <cam/cam_periph.h> 53 #include <cam/cam_sim.h> 54 #include <cam/cam_xpt.h> 55 #include <cam/cam_xpt_sim.h> 56 #include <cam/cam_xpt_periph.h> 57 #include <cam/cam_xpt_internal.h> 58 #include <cam/cam_debug.h> 59 60 #include <cam/scsi/scsi_all.h> 61 #include <cam/scsi/scsi_message.h> 62 #include <cam/nvme/nvme_all.h> 63 #include <machine/stdarg.h> /* for xpt_print below */ 64 #include "opt_cam.h" 65 66 struct nvme_quirk_entry { 67 u_int quirks; 68 #define CAM_QUIRK_MAXTAGS 1 69 u_int mintags; 70 u_int maxtags; 71 }; 72 73 /* Not even sure why we need this */ 74 static periph_init_t nvme_probe_periph_init; 75 76 static struct periph_driver nvme_probe_driver = 77 { 78 nvme_probe_periph_init, "nvme_probe", 79 TAILQ_HEAD_INITIALIZER(nvme_probe_driver.units), /* generation */ 0, 80 CAM_PERIPH_DRV_EARLY 81 }; 82 83 PERIPHDRIVER_DECLARE(nvme_probe, nvme_probe_driver); 84 85 typedef enum { 86 NVME_PROBE_IDENTIFY, 87 NVME_PROBE_DONE, 88 NVME_PROBE_INVALID, 89 NVME_PROBE_RESET 90 } nvme_probe_action; 91 92 static char *nvme_probe_action_text[] = { 93 "NVME_PROBE_IDENTIFY", 94 "NVME_PROBE_DONE", 95 "NVME_PROBE_INVALID", 96 "NVME_PROBE_RESET", 97 }; 98 99 #define NVME_PROBE_SET_ACTION(softc, newaction) \ 100 do { \ 101 char **text; \ 102 text = nvme_probe_action_text; \ 103 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \ 104 ("Probe %s to %s\n", text[(softc)->action], \ 105 text[(newaction)])); \ 106 (softc)->action = (newaction); \ 107 } while(0) 108 109 typedef enum { 110 NVME_PROBE_NO_ANNOUNCE = 0x04 111 } nvme_probe_flags; 112 113 typedef struct { 114 TAILQ_HEAD(, ccb_hdr) request_ccbs; 115 nvme_probe_action action; 116 nvme_probe_flags flags; 117 int restart; 118 struct cam_periph *periph; 119 } nvme_probe_softc; 120 121 static struct nvme_quirk_entry nvme_quirk_table[] = 122 { 123 { 124 // { 125 // T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 126 // /*vendor*/"*", /*product*/"*", /*revision*/"*" 127 // }, 128 .quirks = 0, .mintags = 0, .maxtags = 0 129 }, 130 }; 131 132 static const int nvme_quirk_table_size = 133 sizeof(nvme_quirk_table) / sizeof(*nvme_quirk_table); 134 135 static cam_status nvme_probe_register(struct cam_periph *periph, 136 void *arg); 137 static void nvme_probe_schedule(struct cam_periph *nvme_probe_periph); 138 static void nvme_probe_start(struct cam_periph *periph, union ccb *start_ccb); 139 static void nvme_probe_cleanup(struct cam_periph *periph); 140 //static void nvme_find_quirk(struct cam_ed *device); 141 static void nvme_scan_lun(struct cam_periph *periph, 142 struct cam_path *path, cam_flags flags, 143 union ccb *ccb); 144 static struct cam_ed * 145 nvme_alloc_device(struct cam_eb *bus, struct cam_et *target, 146 lun_id_t lun_id); 147 static void nvme_device_transport(struct cam_path *path); 148 static void nvme_dev_async(u_int32_t async_code, 149 struct cam_eb *bus, 150 struct cam_et *target, 151 struct cam_ed *device, 152 void *async_arg); 153 static void nvme_action(union ccb *start_ccb); 154 static void nvme_announce_periph(struct cam_periph *periph); 155 static void nvme_proto_announce(struct cam_ed *device); 156 static void nvme_proto_denounce(struct cam_ed *device); 157 static void nvme_proto_debug_out(union ccb *ccb); 158 159 static struct xpt_xport_ops nvme_xport_ops = { 160 .alloc_device = nvme_alloc_device, 161 .action = nvme_action, 162 .async = nvme_dev_async, 163 .announce = nvme_announce_periph, 164 }; 165 #define NVME_XPT_XPORT(x, X) \ 166 static struct xpt_xport nvme_xport_ ## x = { \ 167 .xport = XPORT_ ## X, \ 168 .name = #x, \ 169 .ops = &nvme_xport_ops, \ 170 }; \ 171 CAM_XPT_XPORT(nvme_xport_ ## x); 172 173 NVME_XPT_XPORT(nvme, NVME); 174 175 #undef NVME_XPT_XPORT 176 177 static struct xpt_proto_ops nvme_proto_ops = { 178 .announce = nvme_proto_announce, 179 .denounce = nvme_proto_denounce, 180 .debug_out = nvme_proto_debug_out, 181 }; 182 static struct xpt_proto nvme_proto = { 183 .proto = PROTO_NVME, 184 .name = "nvme", 185 .ops = &nvme_proto_ops, 186 }; 187 CAM_XPT_PROTO(nvme_proto); 188 189 static void 190 nvme_probe_periph_init() 191 { 192 193 } 194 195 static cam_status 196 nvme_probe_register(struct cam_periph *periph, void *arg) 197 { 198 union ccb *request_ccb; /* CCB representing the probe request */ 199 cam_status status; 200 nvme_probe_softc *softc; 201 202 request_ccb = (union ccb *)arg; 203 if (request_ccb == NULL) { 204 printf("nvme_probe_register: no probe CCB, " 205 "can't register device\n"); 206 return(CAM_REQ_CMP_ERR); 207 } 208 209 softc = (nvme_probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_ZERO | M_NOWAIT); 210 211 if (softc == NULL) { 212 printf("nvme_probe_register: Unable to probe new device. " 213 "Unable to allocate softc\n"); 214 return(CAM_REQ_CMP_ERR); 215 } 216 TAILQ_INIT(&softc->request_ccbs); 217 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 218 periph_links.tqe); 219 softc->flags = 0; 220 periph->softc = softc; 221 softc->periph = periph; 222 softc->action = NVME_PROBE_INVALID; 223 status = cam_periph_acquire(periph); 224 if (status != CAM_REQ_CMP) { 225 return (status); 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 /* Can't release periph since we hit a (possibly bogus) assertion */ 322 // cam_periph_release_locked(periph); 323 } 324 325 static void 326 nvme_probe_cleanup(struct cam_periph *periph) 327 { 328 329 free(periph->softc, M_CAMXPT); 330 } 331 332 #if 0 333 /* XXX should be used, don't delete */ 334 static void 335 nvme_find_quirk(struct cam_ed *device) 336 { 337 struct nvme_quirk_entry *quirk; 338 caddr_t match; 339 340 match = cam_quirkmatch((caddr_t)&device->nvme_data, 341 (caddr_t)nvme_quirk_table, 342 nvme_quirk_table_size, 343 sizeof(*nvme_quirk_table), nvme_identify_match); 344 345 if (match == NULL) 346 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 347 348 quirk = (struct nvme_quirk_entry *)match; 349 device->quirk = quirk; 350 if (quirk->quirks & CAM_QUIRK_MAXTAGS) { 351 device->mintags = quirk->mintags; 352 device->maxtags = quirk->maxtags; 353 } 354 } 355 #endif 356 357 static void 358 nvme_scan_lun(struct cam_periph *periph, struct cam_path *path, 359 cam_flags flags, union ccb *request_ccb) 360 { 361 struct ccb_pathinq cpi; 362 cam_status status; 363 struct cam_periph *old_periph; 364 int lock; 365 366 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("nvme_scan_lun\n")); 367 368 xpt_path_inq(&cpi, path); 369 370 if (cpi.ccb_h.status != CAM_REQ_CMP) { 371 if (request_ccb != NULL) { 372 request_ccb->ccb_h.status = cpi.ccb_h.status; 373 xpt_done(request_ccb); 374 } 375 return; 376 } 377 378 if (xpt_path_lun_id(path) == CAM_LUN_WILDCARD) { 379 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("nvme_scan_lun ignoring bus\n")); 380 request_ccb->ccb_h.status = CAM_REQ_CMP; /* XXX signal error ? */ 381 xpt_done(request_ccb); 382 return; 383 } 384 385 lock = (xpt_path_owned(path) == 0); 386 if (lock) 387 xpt_path_lock(path); 388 if ((old_periph = cam_periph_find(path, "nvme_probe")) != NULL) { 389 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 390 nvme_probe_softc *softc; 391 392 softc = (nvme_probe_softc *)old_periph->softc; 393 TAILQ_INSERT_TAIL(&softc->request_ccbs, 394 &request_ccb->ccb_h, periph_links.tqe); 395 softc->restart = 1; 396 CAM_DEBUG(path, CAM_DEBUG_TRACE, 397 ("restarting nvme_probe device\n")); 398 } else { 399 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 400 CAM_DEBUG(path, CAM_DEBUG_TRACE, 401 ("Failing to restart nvme_probe device\n")); 402 xpt_done(request_ccb); 403 } 404 } else { 405 CAM_DEBUG(path, CAM_DEBUG_TRACE, 406 ("Adding nvme_probe device\n")); 407 status = cam_periph_alloc(nvme_probe_register, NULL, nvme_probe_cleanup, 408 nvme_probe_start, "nvme_probe", 409 CAM_PERIPH_BIO, 410 request_ccb->ccb_h.path, NULL, 0, 411 request_ccb); 412 413 if (status != CAM_REQ_CMP) { 414 xpt_print(path, "xpt_scan_lun: cam_alloc_periph " 415 "returned an error, can't continue probe\n"); 416 request_ccb->ccb_h.status = status; 417 xpt_done(request_ccb); 418 } 419 } 420 if (lock) 421 xpt_path_unlock(path); 422 } 423 424 static struct cam_ed * 425 nvme_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 426 { 427 struct nvme_quirk_entry *quirk; 428 struct cam_ed *device; 429 430 device = xpt_alloc_device(bus, target, lun_id); 431 if (device == NULL) 432 return (NULL); 433 434 /* 435 * Take the default quirk entry until we have inquiry 436 * data from nvme and can determine a better quirk to use. 437 */ 438 quirk = &nvme_quirk_table[nvme_quirk_table_size - 1]; 439 device->quirk = (void *)quirk; 440 device->mintags = 0; 441 device->maxtags = 0; 442 device->inq_flags = 0; 443 device->queue_flags = 0; 444 device->device_id = NULL; /* XXX Need to set this somewhere */ 445 device->device_id_len = 0; 446 device->serial_num = NULL; /* XXX Need to set this somewhere */ 447 device->serial_num_len = 0; 448 return (device); 449 } 450 451 static void 452 nvme_device_transport(struct cam_path *path) 453 { 454 struct ccb_pathinq cpi; 455 struct ccb_trans_settings cts; 456 /* XXX get data from nvme namespace and other info ??? */ 457 458 /* Get transport information from the SIM */ 459 xpt_path_inq(&cpi, path); 460 461 path->device->transport = cpi.transport; 462 path->device->transport_version = cpi.transport_version; 463 464 path->device->protocol = cpi.protocol; 465 path->device->protocol_version = cpi.protocol_version; 466 467 /* Tell the controller what we think */ 468 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 469 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 470 cts.type = CTS_TYPE_CURRENT_SETTINGS; 471 cts.transport = path->device->transport; 472 cts.transport_version = path->device->transport_version; 473 cts.protocol = path->device->protocol; 474 cts.protocol_version = path->device->protocol_version; 475 cts.proto_specific.valid = 0; 476 cts.xport_specific.valid = 0; 477 xpt_action((union ccb *)&cts); 478 } 479 480 static void 481 nvme_dev_advinfo(union ccb *start_ccb) 482 { 483 struct cam_ed *device; 484 struct ccb_dev_advinfo *cdai; 485 off_t amt; 486 487 start_ccb->ccb_h.status = CAM_REQ_INVALID; 488 device = start_ccb->ccb_h.path->device; 489 cdai = &start_ccb->cdai; 490 switch(cdai->buftype) { 491 case CDAI_TYPE_SCSI_DEVID: 492 if (cdai->flags & CDAI_FLAG_STORE) 493 return; 494 cdai->provsiz = device->device_id_len; 495 if (device->device_id_len == 0) 496 break; 497 amt = device->device_id_len; 498 if (cdai->provsiz > cdai->bufsiz) 499 amt = cdai->bufsiz; 500 memcpy(cdai->buf, device->device_id, amt); 501 break; 502 case CDAI_TYPE_SERIAL_NUM: 503 if (cdai->flags & CDAI_FLAG_STORE) 504 return; 505 cdai->provsiz = device->serial_num_len; 506 if (device->serial_num_len == 0) 507 break; 508 amt = device->serial_num_len; 509 if (cdai->provsiz > cdai->bufsiz) 510 amt = cdai->bufsiz; 511 memcpy(cdai->buf, device->serial_num, amt); 512 break; 513 case CDAI_TYPE_PHYS_PATH: 514 if (cdai->flags & CDAI_FLAG_STORE) { 515 if (device->physpath != NULL) 516 free(device->physpath, M_CAMXPT); 517 device->physpath_len = cdai->bufsiz; 518 /* Clear existing buffer if zero length */ 519 if (cdai->bufsiz == 0) 520 break; 521 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 522 if (device->physpath == NULL) { 523 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 524 return; 525 } 526 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 527 } else { 528 cdai->provsiz = device->physpath_len; 529 if (device->physpath_len == 0) 530 break; 531 amt = device->physpath_len; 532 if (cdai->provsiz > cdai->bufsiz) 533 amt = cdai->bufsiz; 534 memcpy(cdai->buf, device->physpath, amt); 535 } 536 break; 537 case CDAI_TYPE_NVME_CNTRL: 538 if (cdai->flags & CDAI_FLAG_STORE) 539 return; 540 amt = sizeof(struct nvme_controller_data); 541 cdai->provsiz = amt; 542 if (amt > cdai->bufsiz) 543 amt = cdai->bufsiz; 544 memcpy(cdai->buf, device->nvme_cdata, amt); 545 break; 546 case CDAI_TYPE_NVME_NS: 547 if (cdai->flags & CDAI_FLAG_STORE) 548 return; 549 amt = sizeof(struct nvme_namespace_data); 550 cdai->provsiz = amt; 551 if (amt > cdai->bufsiz) 552 amt = cdai->bufsiz; 553 memcpy(cdai->buf, device->nvme_data, amt); 554 break; 555 default: 556 return; 557 } 558 start_ccb->ccb_h.status = CAM_REQ_CMP; 559 560 if (cdai->flags & CDAI_FLAG_STORE) { 561 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 562 (void *)(uintptr_t)cdai->buftype); 563 } 564 } 565 566 static void 567 nvme_action(union ccb *start_ccb) 568 { 569 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, 570 ("nvme_action: func= %#x\n", start_ccb->ccb_h.func_code)); 571 572 switch (start_ccb->ccb_h.func_code) { 573 case XPT_SCAN_BUS: 574 case XPT_SCAN_TGT: 575 case XPT_SCAN_LUN: 576 nvme_scan_lun(start_ccb->ccb_h.path->periph, 577 start_ccb->ccb_h.path, start_ccb->crcn.flags, 578 start_ccb); 579 break; 580 case XPT_DEV_ADVINFO: 581 nvme_dev_advinfo(start_ccb); 582 break; 583 584 default: 585 xpt_action_default(start_ccb); 586 break; 587 } 588 } 589 590 /* 591 * Handle any per-device event notifications that require action by the XPT. 592 */ 593 static void 594 nvme_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 595 struct cam_ed *device, void *async_arg) 596 { 597 598 /* 599 * We only need to handle events for real devices. 600 */ 601 if (target->target_id == CAM_TARGET_WILDCARD 602 || device->lun_id == CAM_LUN_WILDCARD) 603 return; 604 605 if (async_code == AC_LOST_DEVICE && 606 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 607 device->flags |= CAM_DEV_UNCONFIGURED; 608 xpt_release_device(device); 609 } 610 } 611 612 static void 613 nvme_announce_periph(struct cam_periph *periph) 614 { 615 struct ccb_pathinq cpi; 616 struct ccb_trans_settings cts; 617 struct cam_path *path = periph->path; 618 struct ccb_trans_settings_nvme *nvmex; 619 620 cam_periph_assert(periph, MA_OWNED); 621 622 /* Ask the SIM for connection details */ 623 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 624 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 625 cts.type = CTS_TYPE_CURRENT_SETTINGS; 626 xpt_action((union ccb*)&cts); 627 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 628 return; 629 nvmex = &cts.xport_specific.nvme; 630 631 /* Ask the SIM for its base transfer speed */ 632 xpt_path_inq(&cpi, periph->path); 633 printf("%s%d: nvme version %d.%d x%d (max x%d) lanes PCIe Gen%d (max Gen%d) link", 634 periph->periph_name, periph->unit_number, 635 NVME_MAJOR(nvmex->spec), 636 NVME_MINOR(nvmex->spec), 637 nvmex->lanes, nvmex->max_lanes, 638 nvmex->speed, nvmex->max_speed); 639 printf("\n"); 640 } 641 642 static void 643 nvme_proto_announce(struct cam_ed *device) 644 { 645 struct sbuf sb; 646 char buffer[120]; 647 648 sbuf_new(&sb, buffer, sizeof(buffer), SBUF_FIXEDLEN); 649 nvme_print_ident(device->nvme_cdata, device->nvme_data, &sb); 650 sbuf_finish(&sb); 651 sbuf_putbuf(&sb); 652 } 653 654 static void 655 nvme_proto_denounce(struct cam_ed *device) 656 { 657 658 nvme_proto_announce(device); 659 } 660 661 static void 662 nvme_proto_debug_out(union ccb *ccb) 663 { 664 char cdb_str[(sizeof(struct nvme_command) * 3) + 1]; 665 666 if (ccb->ccb_h.func_code != XPT_NVME_IO) 667 return; 668 669 CAM_DEBUG(ccb->ccb_h.path, 670 CAM_DEBUG_CDB,("%s. NCB: %s\n", nvme_op_string(&ccb->nvmeio.cmd), 671 nvme_cmd_string(&ccb->nvmeio.cmd, cdb_str, sizeof(cdb_str)))); 672 } 673 674