1 /* 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2020-2023, Broadcom Inc. All rights reserved. 5 * Support: <fbsd-storage-driver.pdl@broadcom.com> 6 * 7 * Authors: Sumit Saxena <sumit.saxena@broadcom.com> 8 * Chandrakanth Patil <chandrakanth.patil@broadcom.com> 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions are 12 * met: 13 * 14 * 1. Redistributions of source code must retain the above copyright notice, 15 * this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright notice, 17 * this list of conditions and the following disclaimer in the documentation and/or other 18 * materials provided with the distribution. 19 * 3. Neither the name of the Broadcom Inc. nor the names of its contributors 20 * may be used to endorse or promote products derived from this software without 21 * specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 24 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 27 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 * 35 * The views and conclusions contained in the software and documentation are 36 * those of the authors and should not be interpreted as representing 37 * official policies,either expressed or implied, of the FreeBSD Project. 38 * 39 * Mail to: Broadcom Inc 1320 Ridder Park Dr, San Jose, CA 95131 40 * 41 * Broadcom Inc. (Broadcom) MPI3MR Adapter FreeBSD 42 */ 43 44 #include "mpi3mr.h" 45 #include "mpi3mr_cam.h" 46 #include "mpi3mr_app.h" 47 48 static int sc_ids; 49 static int mpi3mr_pci_probe(device_t); 50 static int mpi3mr_pci_attach(device_t); 51 static int mpi3mr_pci_detach(device_t); 52 static int mpi3mr_pci_suspend(device_t); 53 static int mpi3mr_pci_resume(device_t); 54 static int mpi3mr_setup_resources(struct mpi3mr_softc *sc); 55 static void mpi3mr_release_resources(struct mpi3mr_softc *); 56 static void mpi3mr_teardown_irqs(struct mpi3mr_softc *sc); 57 58 extern void mpi3mr_watchdog_thread(void *arg); 59 60 static device_method_t mpi3mr_methods[] = { 61 DEVMETHOD(device_probe, mpi3mr_pci_probe), 62 DEVMETHOD(device_attach, mpi3mr_pci_attach), 63 DEVMETHOD(device_detach, mpi3mr_pci_detach), 64 DEVMETHOD(device_suspend, mpi3mr_pci_suspend), 65 DEVMETHOD(device_resume, mpi3mr_pci_resume), 66 DEVMETHOD(bus_print_child, bus_generic_print_child), 67 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 68 { 0, 0 } 69 }; 70 71 char fmt_os_ver[16]; 72 73 SYSCTL_NODE(_hw, OID_AUTO, mpi3mr, CTLFLAG_RD, 0, "MPI3MR Driver Parameters"); 74 MALLOC_DEFINE(M_MPI3MR, "mpi3mrbuf", "Buffers for the MPI3MR driver"); 75 76 static driver_t mpi3mr_pci_driver = { 77 "mpi3mr", 78 mpi3mr_methods, 79 sizeof(struct mpi3mr_softc) 80 }; 81 82 struct mpi3mr_ident { 83 uint16_t vendor; 84 uint16_t device; 85 uint16_t subvendor; 86 uint16_t subdevice; 87 u_int flags; 88 const char *desc; 89 } mpi3mr_identifiers[] = { 90 { MPI3_MFGPAGE_VENDORID_BROADCOM, MPI3_MFGPAGE_DEVID_SAS4116, 91 0xffff, 0xffff, 0, "Broadcom MPIMR 3.0 controller" }, 92 }; 93 94 DRIVER_MODULE(mpi3mr, pci, mpi3mr_pci_driver, 0, 0); 95 MODULE_PNP_INFO("U16:vendor;U16:device;U16:subvendor;U16:subdevice;D:#", pci, 96 mpi3mr, mpi3mr_identifiers, nitems(mpi3mr_identifiers) - 1); 97 98 MODULE_DEPEND(mpi3mr, cam, 1, 1, 1); 99 100 /* 101 * mpi3mr_setup_sysctl: setup sysctl values for mpi3mr 102 * input: Adapter instance soft state 103 * 104 * Setup sysctl entries for mpi3mr driver. 105 */ 106 static void 107 mpi3mr_setup_sysctl(struct mpi3mr_softc *sc) 108 { 109 struct sysctl_ctx_list *sysctl_ctx = NULL; 110 struct sysctl_oid *sysctl_tree = NULL; 111 char tmpstr[80], tmpstr2[80]; 112 113 /* 114 * Setup the sysctl variable so the user can change the debug level 115 * on the fly. 116 */ 117 snprintf(tmpstr, sizeof(tmpstr), "MPI3MR controller %d", 118 device_get_unit(sc->mpi3mr_dev)); 119 snprintf(tmpstr2, sizeof(tmpstr2), "%d", device_get_unit(sc->mpi3mr_dev)); 120 121 sysctl_ctx = device_get_sysctl_ctx(sc->mpi3mr_dev); 122 if (sysctl_ctx != NULL) 123 sysctl_tree = device_get_sysctl_tree(sc->mpi3mr_dev); 124 125 if (sysctl_tree == NULL) { 126 sysctl_ctx_init(&sc->sysctl_ctx); 127 sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx, 128 SYSCTL_STATIC_CHILDREN(_hw_mpi3mr), OID_AUTO, tmpstr2, 129 CTLFLAG_RD, 0, tmpstr); 130 if (sc->sysctl_tree == NULL) 131 return; 132 sysctl_ctx = &sc->sysctl_ctx; 133 sysctl_tree = sc->sysctl_tree; 134 } 135 136 SYSCTL_ADD_STRING(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), 137 OID_AUTO, "driver_version", CTLFLAG_RD, MPI3MR_DRIVER_VERSION, 138 strlen(MPI3MR_DRIVER_VERSION), "driver version"); 139 140 SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), 141 OID_AUTO, "fw_outstanding", CTLFLAG_RD, 142 &sc->fw_outstanding.val_rdonly, 0, "FW outstanding commands"); 143 144 SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), 145 OID_AUTO, "io_cmds_highwater", CTLFLAG_RD, 146 &sc->io_cmds_highwater, 0, "Max FW outstanding commands"); 147 148 SYSCTL_ADD_STRING(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), 149 OID_AUTO, "firmware_version", CTLFLAG_RD, sc->fw_version, 150 strlen(sc->fw_version), "firmware version"); 151 152 SYSCTL_ADD_UINT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), 153 OID_AUTO, "mpi3mr_debug", CTLFLAG_RW, &sc->mpi3mr_debug, 0, 154 "Driver debug level"); 155 SYSCTL_ADD_UINT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), 156 OID_AUTO, "reset", CTLFLAG_RW, &sc->reset.type, 0, 157 "Soft reset(1)/Diag reset(2)"); 158 SYSCTL_ADD_UINT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), 159 OID_AUTO, "iot_enable", CTLFLAG_RW, &sc->iot_enable, 0, 160 "IO throttling enable at driver level(for debug purpose)"); 161 } 162 163 /* 164 * mpi3mr_get_tunables: get tunable parameters. 165 * input: Adapter instance soft state 166 * 167 * Get tunable parameters. This will help to debug driver at boot time. 168 */ 169 static void 170 mpi3mr_get_tunables(struct mpi3mr_softc *sc) 171 { 172 char tmpstr[80]; 173 174 sc->mpi3mr_debug = 175 (MPI3MR_ERROR | MPI3MR_INFO | MPI3MR_FAULT); 176 177 sc->reset_in_progress = 0; 178 sc->reset.type = 0; 179 sc->iot_enable = 1; 180 /* 181 * Grab the global variables. 182 */ 183 TUNABLE_INT_FETCH("hw.mpi3mr.debug_level", &sc->mpi3mr_debug); 184 TUNABLE_INT_FETCH("hw.mpi3mr.ctrl_reset", &sc->reset.type); 185 TUNABLE_INT_FETCH("hw.mpi3mr.iot_enable", &sc->iot_enable); 186 187 /* Grab the unit-instance variables */ 188 snprintf(tmpstr, sizeof(tmpstr), "dev.mpi3mr.%d.debug_level", 189 device_get_unit(sc->mpi3mr_dev)); 190 TUNABLE_INT_FETCH(tmpstr, &sc->mpi3mr_debug); 191 192 snprintf(tmpstr, sizeof(tmpstr), "dev.mpi3mr.%d.reset", 193 device_get_unit(sc->mpi3mr_dev)); 194 TUNABLE_INT_FETCH(tmpstr, &sc->reset.type); 195 196 snprintf(tmpstr, sizeof(tmpstr), "dev.mpi3mr.%d.iot_enable", 197 device_get_unit(sc->mpi3mr_dev)); 198 TUNABLE_INT_FETCH(tmpstr, &sc->iot_enable); 199 } 200 201 static struct mpi3mr_ident * 202 mpi3mr_find_ident(device_t dev) 203 { 204 struct mpi3mr_ident *m; 205 206 for (m = mpi3mr_identifiers; m->vendor != 0; m++) { 207 if (m->vendor != pci_get_vendor(dev)) 208 continue; 209 if (m->device != pci_get_device(dev)) 210 continue; 211 if ((m->subvendor != 0xffff) && 212 (m->subvendor != pci_get_subvendor(dev))) 213 continue; 214 if ((m->subdevice != 0xffff) && 215 (m->subdevice != pci_get_subdevice(dev))) 216 continue; 217 return (m); 218 } 219 220 return (NULL); 221 } 222 223 static int 224 mpi3mr_pci_probe(device_t dev) 225 { 226 static u_int8_t first_ctrl = 1; 227 struct mpi3mr_ident *id; 228 char raw_os_ver[16]; 229 230 if ((id = mpi3mr_find_ident(dev)) != NULL) { 231 if (first_ctrl) { 232 first_ctrl = 0; 233 MPI3MR_OS_VERSION(raw_os_ver, fmt_os_ver); 234 printf("mpi3mr: Loading Broadcom mpi3mr driver version: %s OS version: %s\n", 235 MPI3MR_DRIVER_VERSION, fmt_os_ver); 236 } 237 device_set_desc(dev, id->desc); 238 device_set_desc(dev, id->desc); 239 return (BUS_PROBE_DEFAULT); 240 } 241 return (ENXIO); 242 } 243 244 static void 245 mpi3mr_release_resources(struct mpi3mr_softc *sc) 246 { 247 if (sc->mpi3mr_parent_dmat != NULL) { 248 bus_dma_tag_destroy(sc->mpi3mr_parent_dmat); 249 } 250 251 if (sc->mpi3mr_regs_resource != NULL) { 252 bus_release_resource(sc->mpi3mr_dev, SYS_RES_MEMORY, 253 sc->mpi3mr_regs_rid, sc->mpi3mr_regs_resource); 254 } 255 } 256 257 static int mpi3mr_setup_resources(struct mpi3mr_softc *sc) 258 { 259 int i; 260 device_t dev = sc->mpi3mr_dev; 261 262 pci_enable_busmaster(dev); 263 264 for (i = 0; i < PCI_MAXMAPS_0; i++) { 265 sc->mpi3mr_regs_rid = PCIR_BAR(i); 266 267 if ((sc->mpi3mr_regs_resource = bus_alloc_resource_any(dev, 268 SYS_RES_MEMORY, &sc->mpi3mr_regs_rid, RF_ACTIVE)) != NULL) 269 break; 270 } 271 272 if (sc->mpi3mr_regs_resource == NULL) { 273 mpi3mr_printf(sc, "Cannot allocate PCI registers\n"); 274 return (ENXIO); 275 } 276 277 sc->mpi3mr_btag = rman_get_bustag(sc->mpi3mr_regs_resource); 278 sc->mpi3mr_bhandle = rman_get_bushandle(sc->mpi3mr_regs_resource); 279 280 /* 281 * XXX Perhaps we should move this to after we read iocfacts and use 282 * that to create the proper parent tag. However, to get the iocfacts 283 * we need to have a dmatag for both the admin queue and the iocfacts 284 * DMA transfer. So for now, we just create a 'no restriction' tag and 285 * use sc->dma_loaddr for all the other tag_create calls to get the 286 * right value. It would be nice if one could retroactively adjust a 287 * created tag. The Linux driver effectively does this by setting the 288 * dma_mask on the device. 289 */ 290 /* Allocate the parent DMA tag */ 291 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ 292 1, 0, /* algnmnt, boundary */ 293 BUS_SPACE_MAXADDR, /* lowaddr */ 294 BUS_SPACE_MAXADDR, /* highaddr */ 295 NULL, NULL, /* filter, filterarg */ 296 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */ 297 BUS_SPACE_UNRESTRICTED, /* nsegments */ 298 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 299 0, /* flags */ 300 NULL, NULL, /* lockfunc, lockarg */ 301 &sc->mpi3mr_parent_dmat)) { 302 mpi3mr_dprint(sc, MPI3MR_ERROR, "Cannot allocate parent DMA tag\n"); 303 return (ENOMEM); 304 } 305 306 sc->max_msix_vectors = pci_msix_count(dev); 307 308 return 0; 309 } 310 311 static int 312 mpi3mr_startup(struct mpi3mr_softc *sc) 313 { 314 sc->mpi3mr_flags &= ~MPI3MR_FLAGS_PORT_ENABLE_DONE; 315 mpi3mr_issue_port_enable(sc, 1); 316 return (0); 317 } 318 319 /* Run through any late-start handlers. */ 320 static void 321 mpi3mr_ich_startup(void *arg) 322 { 323 struct mpi3mr_softc *sc; 324 int error; 325 326 sc = (struct mpi3mr_softc *)arg; 327 mpi3mr_dprint(sc, MPI3MR_XINFO, "%s entry\n", __func__); 328 329 mtx_lock(&sc->mpi3mr_mtx); 330 331 mpi3mr_startup(sc); 332 333 mtx_unlock(&sc->mpi3mr_mtx); 334 335 error = mpi3mr_kproc_create(mpi3mr_watchdog_thread, sc, 336 &sc->watchdog_thread, 0, 0, "mpi3mr_watchdog%d", 337 device_get_unit(sc->mpi3mr_dev)); 338 339 if (error) 340 device_printf(sc->mpi3mr_dev, "Error %d starting OCR thread\n", error); 341 342 mpi3mr_dprint(sc, MPI3MR_XINFO, "disestablish config intrhook\n"); 343 config_intrhook_disestablish(&sc->mpi3mr_ich); 344 sc->mpi3mr_ich.ich_arg = NULL; 345 346 mpi3mr_dprint(sc, MPI3MR_XINFO, "%s exit\n", __func__); 347 } 348 349 /** 350 * mpi3mr_ctrl_security_status -Check controller secure status 351 * @pdev: PCI device instance 352 * 353 * Read the Device Serial Number capability from PCI config 354 * space and decide whether the controller is secure or not. 355 * 356 * Return: 0 on success, non-zero on failure. 357 */ 358 static int 359 mpi3mr_ctrl_security_status(device_t dev) 360 { 361 int dev_serial_num, retval = 0; 362 uint32_t cap_data, ctrl_status, debug_status; 363 /* Check if Device serial number extended capability is supported */ 364 if (pci_find_extcap(dev, PCIZ_SERNUM, &dev_serial_num) != 0) { 365 device_printf(dev, 366 "PCIZ_SERNUM is not supported\n"); 367 return -1; 368 } 369 370 cap_data = pci_read_config(dev, dev_serial_num + 4, 4); 371 372 debug_status = cap_data & MPI3MR_CTLR_SECURE_DBG_STATUS_MASK; 373 ctrl_status = cap_data & MPI3MR_CTLR_SECURITY_STATUS_MASK; 374 375 switch (ctrl_status) { 376 case MPI3MR_INVALID_DEVICE: 377 device_printf(dev, 378 "Invalid (Non secure) controller is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n", 379 pci_get_device(dev), pci_get_subvendor(dev), 380 pci_get_subdevice(dev)); 381 retval = -1; 382 break; 383 case MPI3MR_CONFIG_SECURE_DEVICE: 384 if (!debug_status) 385 device_printf(dev, "Config secure controller is detected\n"); 386 break; 387 case MPI3MR_HARD_SECURE_DEVICE: 388 device_printf(dev, "Hard secure controller is detected\n"); 389 break; 390 case MPI3MR_TAMPERED_DEVICE: 391 device_printf(dev, 392 "Tampered (Non secure) controller is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n", 393 pci_get_device(dev), pci_get_subvendor(dev), 394 pci_get_subdevice(dev)); 395 retval = -1; 396 break; 397 default: 398 retval = -1; 399 break; 400 } 401 402 if (!retval && debug_status) { 403 device_printf(dev, 404 "Secure Debug (Non secure) controller is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n", 405 pci_get_device(dev), pci_get_subvendor(dev), 406 pci_get_subdevice(dev)); 407 retval = -1; 408 } 409 410 return retval; 411 } 412 /* 413 * mpi3mr_pci_attach - PCI entry point 414 * @dev: pointer to device struct 415 * 416 * This function does the setup of PCI and registers, allocates controller resources, 417 * initializes mutexes, linked lists and registers interrupts, CAM and initializes 418 * the controller. 419 * 420 * Return: 0 on success and proper error codes on failure 421 */ 422 static int 423 mpi3mr_pci_attach(device_t dev) 424 { 425 struct mpi3mr_softc *sc; 426 int error; 427 428 sc = device_get_softc(dev); 429 bzero(sc, sizeof(*sc)); 430 sc->mpi3mr_dev = dev; 431 432 /* Don't load driver for Non-Secure controllers */ 433 if (mpi3mr_ctrl_security_status(dev)) { 434 sc->secure_ctrl = false; 435 return 0; 436 } 437 438 sc->secure_ctrl = true; 439 440 if ((error = mpi3mr_setup_resources(sc)) != 0) 441 goto load_failed; 442 443 sc->id = sc_ids++; 444 mpi3mr_atomic_set(&sc->fw_outstanding, 0); 445 mpi3mr_atomic_set(&sc->pend_ioctls, 0); 446 sc->admin_req = NULL; 447 sc->admin_reply = NULL; 448 sprintf(sc->driver_name, "%s", MPI3MR_DRIVER_NAME); 449 sprintf(sc->name, "%s%d", sc->driver_name, sc->id); 450 451 sc->mpi3mr_dev = dev; 452 mpi3mr_get_tunables(sc); 453 454 if ((error = mpi3mr_initialize_ioc(sc, MPI3MR_INIT_TYPE_INIT)) != 0) { 455 mpi3mr_dprint(sc, MPI3MR_ERROR, "FW initialization failed\n"); 456 goto load_failed; 457 } 458 459 if ((error = mpi3mr_alloc_requests(sc)) != 0) { 460 mpi3mr_dprint(sc, MPI3MR_ERROR, "Command frames allocation failed\n"); 461 goto load_failed; 462 } 463 464 if ((error = mpi3mr_cam_attach(sc)) != 0) { 465 mpi3mr_dprint(sc, MPI3MR_ERROR, "CAM attach failed\n"); 466 goto load_failed; 467 } 468 469 sc->mpi3mr_ich.ich_func = mpi3mr_ich_startup; 470 sc->mpi3mr_ich.ich_arg = sc; 471 if (config_intrhook_establish(&sc->mpi3mr_ich) != 0) { 472 mpi3mr_dprint(sc, MPI3MR_ERROR, 473 "Cannot establish MPI3MR ICH config hook\n"); 474 error = EINVAL; 475 } 476 477 mpi3mr_dprint(sc, MPI3MR_INFO, "allocating ioctl dma buffers\n"); 478 mpi3mr_alloc_ioctl_dma_memory(sc); 479 480 if ((error = mpi3mr_app_attach(sc)) != 0) { 481 mpi3mr_dprint(sc, MPI3MR_ERROR, "APP/IOCTL attach failed\n"); 482 goto load_failed; 483 } 484 485 mpi3mr_setup_sysctl(sc); 486 487 return 0; 488 489 load_failed: 490 mpi3mr_cleanup_interrupts(sc); 491 mpi3mr_free_mem(sc); 492 mpi3mr_app_detach(sc); 493 mpi3mr_cam_detach(sc); 494 mpi3mr_destory_mtx(sc); 495 mpi3mr_release_resources(sc); 496 return error; 497 } 498 499 void mpi3mr_cleanup_interrupts(struct mpi3mr_softc *sc) 500 { 501 mpi3mr_disable_interrupts(sc); 502 503 mpi3mr_teardown_irqs(sc); 504 505 if (sc->irq_ctx) { 506 free(sc->irq_ctx, M_MPI3MR); 507 sc->irq_ctx = NULL; 508 } 509 510 if (sc->msix_enable) 511 pci_release_msi(sc->mpi3mr_dev); 512 513 sc->msix_count = 0; 514 515 } 516 517 int mpi3mr_setup_irqs(struct mpi3mr_softc *sc) 518 { 519 device_t dev; 520 int error; 521 int i, rid, initial_rid; 522 struct mpi3mr_irq_context *irq_ctx; 523 struct irq_info *irq_info; 524 525 dev = sc->mpi3mr_dev; 526 error = -1; 527 528 if (sc->msix_enable) 529 initial_rid = 1; 530 else 531 initial_rid = 0; 532 533 for (i = 0; i < sc->msix_count; i++) { 534 irq_ctx = &sc->irq_ctx[i]; 535 irq_ctx->msix_index = i; 536 irq_ctx->sc = sc; 537 irq_info = &irq_ctx->irq_info; 538 rid = i + initial_rid; 539 irq_info->irq_rid = rid; 540 irq_info->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 541 &irq_info->irq_rid, RF_ACTIVE); 542 if (irq_info->irq == NULL) { 543 mpi3mr_dprint(sc, MPI3MR_ERROR, 544 "Cannot allocate interrupt RID %d\n", rid); 545 sc->msix_count = i; 546 break; 547 } 548 error = bus_setup_intr(dev, irq_info->irq, 549 INTR_MPSAFE | INTR_TYPE_CAM, NULL, mpi3mr_isr, 550 irq_ctx, &irq_info->intrhand); 551 if (error) { 552 mpi3mr_dprint(sc, MPI3MR_ERROR, 553 "Cannot setup interrupt RID %d\n", rid); 554 sc->msix_count = i; 555 break; 556 } 557 } 558 559 mpi3mr_dprint(sc, MPI3MR_INFO, "Set up %d MSI-x interrupts\n", sc->msix_count); 560 561 return (error); 562 563 } 564 565 static void 566 mpi3mr_teardown_irqs(struct mpi3mr_softc *sc) 567 { 568 struct irq_info *irq_info; 569 int i; 570 571 for (i = 0; i < sc->msix_count; i++) { 572 irq_info = &sc->irq_ctx[i].irq_info; 573 if (irq_info->irq != NULL) { 574 bus_teardown_intr(sc->mpi3mr_dev, irq_info->irq, 575 irq_info->intrhand); 576 bus_release_resource(sc->mpi3mr_dev, SYS_RES_IRQ, 577 irq_info->irq_rid, irq_info->irq); 578 } 579 } 580 581 } 582 583 /* 584 * Allocate, but don't assign interrupts early. Doing it before requesting 585 * the IOCFacts message informs the firmware that we want to do MSI-X 586 * multiqueue. We might not use all of the available messages, but there's 587 * no reason to re-alloc if we don't. 588 */ 589 int 590 mpi3mr_alloc_interrupts(struct mpi3mr_softc *sc, U16 setup_one) 591 { 592 int error, msgs; 593 U16 num_queues; 594 595 error = 0; 596 msgs = 0; 597 598 mpi3mr_cleanup_interrupts(sc); 599 600 if (setup_one) { 601 msgs = 1; 602 } else { 603 msgs = min(sc->max_msix_vectors, sc->cpu_count); 604 num_queues = min(sc->facts.max_op_reply_q, sc->facts.max_op_req_q); 605 msgs = min(msgs, num_queues); 606 607 mpi3mr_dprint(sc, MPI3MR_INFO, "Supported MSI-x count: %d " 608 " CPU count: %d Requested MSI-x count: %d\n", 609 sc->max_msix_vectors, 610 sc->cpu_count, msgs); 611 } 612 613 if (msgs != 0) { 614 error = pci_alloc_msix(sc->mpi3mr_dev, &msgs); 615 if (error) { 616 mpi3mr_dprint(sc, MPI3MR_ERROR, 617 "Could not allocate MSI-x interrupts Error: %x\n", error); 618 goto out_failed; 619 } else 620 sc->msix_enable = 1; 621 } 622 623 sc->msix_count = msgs; 624 sc->irq_ctx = malloc(sizeof(struct mpi3mr_irq_context) * msgs, 625 M_MPI3MR, M_NOWAIT | M_ZERO); 626 627 if (!sc->irq_ctx) { 628 mpi3mr_dprint(sc, MPI3MR_ERROR, "Cannot alloc memory for interrupt info\n"); 629 error = -1; 630 goto out_failed; 631 } 632 633 mpi3mr_dprint(sc, MPI3MR_XINFO, "Allocated %d MSI-x interrupts\n", msgs); 634 635 return error; 636 out_failed: 637 mpi3mr_cleanup_interrupts(sc); 638 return (error); 639 } 640 641 static int 642 mpi3mr_pci_detach(device_t dev) 643 { 644 struct mpi3mr_softc *sc; 645 int i = 0; 646 647 sc = device_get_softc(dev); 648 649 if (!sc->secure_ctrl) 650 return 0; 651 652 653 if (sc->sysctl_tree != NULL) 654 sysctl_ctx_free(&sc->sysctl_ctx); 655 656 mtx_lock(&sc->reset_mutex); 657 sc->mpi3mr_flags |= MPI3MR_FLAGS_SHUTDOWN; 658 if (sc->watchdog_thread_active) 659 wakeup(&sc->watchdog_chan); 660 mtx_unlock(&sc->reset_mutex); 661 662 while (sc->reset_in_progress && (i < PEND_IOCTLS_COMP_WAIT_TIME)) { 663 i++; 664 if (!(i % 5)) { 665 mpi3mr_dprint(sc, MPI3MR_INFO, 666 "[%2d]waiting for reset to be finished from %s\n", i, __func__); 667 } 668 pause("mpi3mr_shutdown", hz); 669 } 670 671 i = 0; 672 while (sc->watchdog_thread_active && (i < 180)) { 673 i++; 674 if (!(i % 5)) { 675 mpi3mr_dprint(sc, MPI3MR_INFO, 676 "[%2d]waiting for " 677 "mpi3mr_reset thread to quit reset %d\n", i, 678 sc->watchdog_thread_active); 679 } 680 pause("mpi3mr_shutdown", hz); 681 } 682 683 i = 0; 684 while (mpi3mr_atomic_read(&sc->pend_ioctls) && (i < 180)) { 685 i++; 686 if (!(i % 5)) { 687 mpi3mr_dprint(sc, MPI3MR_INFO, 688 "[%2d]waiting for IOCTL to be finished from %s\n", i, __func__); 689 } 690 pause("mpi3mr_shutdown", hz); 691 } 692 693 mpi3mr_cleanup_ioc(sc); 694 mpi3mr_cleanup_event_taskq(sc); 695 mpi3mr_app_detach(sc); 696 mpi3mr_cam_detach(sc); 697 mpi3mr_cleanup_interrupts(sc); 698 mpi3mr_destory_mtx(sc); 699 mpi3mr_free_mem(sc); 700 mpi3mr_release_resources(sc); 701 sc_ids--; 702 return (0); 703 } 704 705 static int 706 mpi3mr_pci_suspend(device_t dev) 707 { 708 return (EINVAL); 709 } 710 711 static int 712 mpi3mr_pci_resume(device_t dev) 713 { 714 return (EINVAL); 715 } 716