1 /*- 2 * Copyright (c) 2001 Michael Smith 3 * Copyright (c) 2004 Paul Saab 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 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 AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 /* 31 * Common Interface for SCSI-3 Support driver. 32 * 33 * CISS claims to provide a common interface between a generic SCSI 34 * transport and an intelligent host adapter. 35 * 36 * This driver supports CISS as defined in the document "CISS Command 37 * Interface for SCSI-3 Support Open Specification", Version 1.04, 38 * Valence Number 1, dated 20001127, produced by Compaq Computer 39 * Corporation. This document appears to be a hastily and somewhat 40 * arbitrarlily cut-down version of a larger (and probably even more 41 * chaotic and inconsistent) Compaq internal document. Various 42 * details were also gleaned from Compaq's "cciss" driver for Linux. 43 * 44 * We provide a shim layer between the CISS interface and CAM, 45 * offloading most of the queueing and being-a-disk chores onto CAM. 46 * Entry to the driver is via the PCI bus attachment (ciss_probe, 47 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 48 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 49 * citizens and we have to fake up some responses to get reasonable 50 * behaviour out of them. In addition, the CISS command set is by no 51 * means adequate to support the functionality of a RAID controller, 52 * and thus the supported Compaq adapters utilise portions of the 53 * control protocol from earlier Compaq adapter families. 54 * 55 * Note that we only support the "simple" transport layer over PCI. 56 * This interface (ab)uses the I2O register set (specifically the post 57 * queues) to exchange commands with the adapter. Other interfaces 58 * are available, but we aren't supposed to know about them, and it is 59 * dubious whether they would provide major performance improvements 60 * except under extreme load. 61 * 62 * Currently the only supported CISS adapters are the Compaq Smart 63 * Array 5* series (5300, 5i, 532). Even with only three adapters, 64 * Compaq still manage to have interface variations. 65 * 66 * 67 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 68 * well as Paul Saab at Yahoo! for their assistance in making this 69 * driver happen. 70 * 71 * More thanks must go to John Cagle at HP for the countless hours 72 * spent making this driver "work" with the MSA* series storage 73 * enclosures. Without his help (and nagging), this driver could not 74 * be used with these enclosures. 75 */ 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/malloc.h> 80 #include <sys/kernel.h> 81 #include <sys/bus.h> 82 #include <sys/conf.h> 83 #include <sys/stat.h> 84 #include <sys/kthread.h> 85 #include <sys/queue.h> 86 #include <sys/sysctl.h> 87 88 #include <cam/cam.h> 89 #include <cam/cam_ccb.h> 90 #include <cam/cam_periph.h> 91 #include <cam/cam_sim.h> 92 #include <cam/cam_xpt_sim.h> 93 #include <cam/scsi/scsi_all.h> 94 #include <cam/scsi/scsi_message.h> 95 96 #include <machine/bus.h> 97 #include <machine/endian.h> 98 #include <machine/resource.h> 99 #include <sys/rman.h> 100 101 #include <dev/pci/pcireg.h> 102 #include <dev/pci/pcivar.h> 103 104 #include <dev/ciss/cissreg.h> 105 #include <dev/ciss/cissvar.h> 106 #include <dev/ciss/cissio.h> 107 108 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 109 110 /* pci interface */ 111 static int ciss_lookup(device_t dev); 112 static int ciss_probe(device_t dev); 113 static int ciss_attach(device_t dev); 114 static int ciss_detach(device_t dev); 115 static int ciss_shutdown(device_t dev); 116 117 /* (de)initialisation functions, control wrappers */ 118 static int ciss_init_pci(struct ciss_softc *sc); 119 static int ciss_wait_adapter(struct ciss_softc *sc); 120 static int ciss_flush_adapter(struct ciss_softc *sc); 121 static int ciss_init_requests(struct ciss_softc *sc); 122 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 123 int nseg, int error); 124 static int ciss_identify_adapter(struct ciss_softc *sc); 125 static int ciss_init_logical(struct ciss_softc *sc); 126 static int ciss_init_physical(struct ciss_softc *sc); 127 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 128 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 129 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 130 static int ciss_update_config(struct ciss_softc *sc); 131 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 132 static void ciss_init_sysctl(struct ciss_softc *sc); 133 static void ciss_soft_reset(struct ciss_softc *sc); 134 static void ciss_free(struct ciss_softc *sc); 135 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 136 static void ciss_kill_notify_thread(struct ciss_softc *sc); 137 138 /* request submission/completion */ 139 static int ciss_start(struct ciss_request *cr); 140 static void ciss_done(struct ciss_softc *sc); 141 static void ciss_intr(void *arg); 142 static void ciss_complete(struct ciss_softc *sc); 143 static int ciss_report_request(struct ciss_request *cr, int *command_status, 144 int *scsi_status); 145 static int ciss_synch_request(struct ciss_request *cr, int timeout); 146 static int ciss_poll_request(struct ciss_request *cr, int timeout); 147 static int ciss_wait_request(struct ciss_request *cr, int timeout); 148 #if 0 149 static int ciss_abort_request(struct ciss_request *cr); 150 #endif 151 152 /* request queueing */ 153 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 154 static void ciss_preen_command(struct ciss_request *cr); 155 static void ciss_release_request(struct ciss_request *cr); 156 157 /* request helpers */ 158 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 159 int opcode, void **bufp, size_t bufsize); 160 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 161 162 /* DMA map/unmap */ 163 static int ciss_map_request(struct ciss_request *cr); 164 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 165 int nseg, int error); 166 static void ciss_unmap_request(struct ciss_request *cr); 167 168 /* CAM interface */ 169 static int ciss_cam_init(struct ciss_softc *sc); 170 static void ciss_cam_rescan_target(struct ciss_softc *sc, 171 int bus, int target); 172 static void ciss_cam_rescan_all(struct ciss_softc *sc); 173 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 174 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 175 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 176 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 177 static void ciss_cam_poll(struct cam_sim *sim); 178 static void ciss_cam_complete(struct ciss_request *cr); 179 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 180 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 181 int bus, int target); 182 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 183 184 /* periodic status monitoring */ 185 static void ciss_periodic(void *arg); 186 static void ciss_nop_complete(struct ciss_request *cr); 187 static void ciss_disable_adapter(struct ciss_softc *sc); 188 static void ciss_notify_event(struct ciss_softc *sc); 189 static void ciss_notify_complete(struct ciss_request *cr); 190 static int ciss_notify_abort(struct ciss_softc *sc); 191 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 192 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 193 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 194 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 195 196 /* debugging output */ 197 static void ciss_print_request(struct ciss_request *cr); 198 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 199 static const char *ciss_name_ldrive_status(int status); 200 static int ciss_decode_ldrive_status(int status); 201 static const char *ciss_name_ldrive_org(int org); 202 static const char *ciss_name_command_status(int status); 203 204 /* 205 * PCI bus interface. 206 */ 207 static device_method_t ciss_methods[] = { 208 /* Device interface */ 209 DEVMETHOD(device_probe, ciss_probe), 210 DEVMETHOD(device_attach, ciss_attach), 211 DEVMETHOD(device_detach, ciss_detach), 212 DEVMETHOD(device_shutdown, ciss_shutdown), 213 { 0, 0 } 214 }; 215 216 static driver_t ciss_pci_driver = { 217 "ciss", 218 ciss_methods, 219 sizeof(struct ciss_softc) 220 }; 221 222 static devclass_t ciss_devclass; 223 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 224 MODULE_DEPEND(ciss, cam, 1, 1, 1); 225 MODULE_DEPEND(ciss, pci, 1, 1, 1); 226 227 /* 228 * Control device interface. 229 */ 230 static d_open_t ciss_open; 231 static d_close_t ciss_close; 232 static d_ioctl_t ciss_ioctl; 233 234 static struct cdevsw ciss_cdevsw = { 235 .d_version = D_VERSION, 236 .d_flags = 0, 237 .d_open = ciss_open, 238 .d_close = ciss_close, 239 .d_ioctl = ciss_ioctl, 240 .d_name = "ciss", 241 }; 242 243 /* 244 * This tunable can be set at boot time and controls whether physical devices 245 * that are marked hidden by the firmware should be exposed anyways. 246 */ 247 static unsigned int ciss_expose_hidden_physical = 0; 248 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 249 250 static unsigned int ciss_nop_message_heartbeat = 0; 251 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 252 253 /************************************************************************ 254 * CISS adapters amazingly don't have a defined programming interface 255 * value. (One could say some very despairing things about PCI and 256 * people just not getting the general idea.) So we are forced to 257 * stick with matching against subvendor/subdevice, and thus have to 258 * be updated for every new CISS adapter that appears. 259 */ 260 #define CISS_BOARD_SA5 (1<<0) 261 #define CISS_BOARD_SA5B (1<<1) 262 263 static struct 264 { 265 u_int16_t subvendor; 266 u_int16_t subdevice; 267 int flags; 268 char *desc; 269 } ciss_vendor_data[] = { 270 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 271 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 272 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 273 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 274 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 275 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 276 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 277 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 278 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 279 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 280 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 281 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 282 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 283 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 284 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 285 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 286 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 287 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 288 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 289 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 290 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 291 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 292 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 293 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 294 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 295 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array" }, 296 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 297 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 298 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 299 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 300 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 301 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 302 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 303 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 304 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 305 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 306 { 0, 0, 0, NULL } 307 }; 308 309 /************************************************************************ 310 * Find a match for the device in our list of known adapters. 311 */ 312 static int 313 ciss_lookup(device_t dev) 314 { 315 int i; 316 317 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 318 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 319 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 320 return(i); 321 } 322 return(-1); 323 } 324 325 /************************************************************************ 326 * Match a known CISS adapter. 327 */ 328 static int 329 ciss_probe(device_t dev) 330 { 331 int i; 332 333 i = ciss_lookup(dev); 334 if (i != -1) { 335 device_set_desc(dev, ciss_vendor_data[i].desc); 336 return(BUS_PROBE_DEFAULT); 337 } 338 return(ENOENT); 339 } 340 341 /************************************************************************ 342 * Attach the driver to this adapter. 343 */ 344 static int 345 ciss_attach(device_t dev) 346 { 347 struct ciss_softc *sc; 348 int i, error; 349 350 debug_called(1); 351 352 #ifdef CISS_DEBUG 353 /* print structure/union sizes */ 354 debug_struct(ciss_command); 355 debug_struct(ciss_header); 356 debug_union(ciss_device_address); 357 debug_struct(ciss_cdb); 358 debug_struct(ciss_report_cdb); 359 debug_struct(ciss_notify_cdb); 360 debug_struct(ciss_notify); 361 debug_struct(ciss_message_cdb); 362 debug_struct(ciss_error_info_pointer); 363 debug_struct(ciss_error_info); 364 debug_struct(ciss_sg_entry); 365 debug_struct(ciss_config_table); 366 debug_struct(ciss_bmic_cdb); 367 debug_struct(ciss_bmic_id_ldrive); 368 debug_struct(ciss_bmic_id_lstatus); 369 debug_struct(ciss_bmic_id_table); 370 debug_struct(ciss_bmic_id_pdrive); 371 debug_struct(ciss_bmic_blink_pdrive); 372 debug_struct(ciss_bmic_flush_cache); 373 debug_const(CISS_MAX_REQUESTS); 374 debug_const(CISS_MAX_LOGICAL); 375 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 376 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 377 debug_const(CISS_COMMAND_ALLOC_SIZE); 378 debug_const(CISS_COMMAND_SG_LENGTH); 379 380 debug_type(cciss_pci_info_struct); 381 debug_type(cciss_coalint_struct); 382 debug_type(cciss_coalint_struct); 383 debug_type(NodeName_type); 384 debug_type(NodeName_type); 385 debug_type(Heartbeat_type); 386 debug_type(BusTypes_type); 387 debug_type(FirmwareVer_type); 388 debug_type(DriverVer_type); 389 debug_type(IOCTL_Command_struct); 390 #endif 391 392 sc = device_get_softc(dev); 393 sc->ciss_dev = dev; 394 395 /* 396 * Work out adapter type. 397 */ 398 i = ciss_lookup(dev); 399 if (i < 0) { 400 ciss_printf(sc, "unknown adapter type\n"); 401 error = ENXIO; 402 goto out; 403 } 404 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 405 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 406 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 407 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 408 } else { 409 /* really an error on our part */ 410 ciss_printf(sc, "unable to determine hardware type\n"); 411 error = ENXIO; 412 goto out; 413 } 414 415 /* 416 * Do PCI-specific init. 417 */ 418 if ((error = ciss_init_pci(sc)) != 0) 419 goto out; 420 421 /* 422 * Initialise driver queues. 423 */ 424 ciss_initq_free(sc); 425 ciss_initq_busy(sc); 426 ciss_initq_complete(sc); 427 ciss_initq_notify(sc); 428 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 429 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 430 431 /* 432 * Initalize device sysctls. 433 */ 434 ciss_init_sysctl(sc); 435 436 /* 437 * Initialise command/request pool. 438 */ 439 if ((error = ciss_init_requests(sc)) != 0) 440 goto out; 441 442 /* 443 * Get adapter information. 444 */ 445 if ((error = ciss_identify_adapter(sc)) != 0) 446 goto out; 447 448 /* 449 * Find all the physical devices. 450 */ 451 if ((error = ciss_init_physical(sc)) != 0) 452 goto out; 453 454 /* 455 * Build our private table of logical devices. 456 */ 457 if ((error = ciss_init_logical(sc)) != 0) 458 goto out; 459 460 /* 461 * Enable interrupts so that the CAM scan can complete. 462 */ 463 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 464 465 /* 466 * Initialise the CAM interface. 467 */ 468 if ((error = ciss_cam_init(sc)) != 0) 469 goto out; 470 471 /* 472 * Start the heartbeat routine and event chain. 473 */ 474 ciss_periodic(sc); 475 476 /* 477 * Create the control device. 478 */ 479 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 480 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 481 "ciss%d", device_get_unit(sc->ciss_dev)); 482 sc->ciss_dev_t->si_drv1 = sc; 483 484 /* 485 * The adapter is running; synchronous commands can now sleep 486 * waiting for an interrupt to signal completion. 487 */ 488 sc->ciss_flags |= CISS_FLAG_RUNNING; 489 490 ciss_spawn_notify_thread(sc); 491 492 error = 0; 493 out: 494 if (error != 0) 495 ciss_free(sc); 496 return(error); 497 } 498 499 /************************************************************************ 500 * Detach the driver from this adapter. 501 */ 502 static int 503 ciss_detach(device_t dev) 504 { 505 struct ciss_softc *sc = device_get_softc(dev); 506 507 debug_called(1); 508 509 mtx_lock(&sc->ciss_mtx); 510 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 511 mtx_unlock(&sc->ciss_mtx); 512 return (EBUSY); 513 } 514 515 /* flush adapter cache */ 516 ciss_flush_adapter(sc); 517 518 /* release all resources. The mutex is released and freed here too. */ 519 ciss_free(sc); 520 521 return(0); 522 } 523 524 /************************************************************************ 525 * Prepare adapter for system shutdown. 526 */ 527 static int 528 ciss_shutdown(device_t dev) 529 { 530 struct ciss_softc *sc = device_get_softc(dev); 531 532 debug_called(1); 533 534 mtx_lock(&sc->ciss_mtx); 535 /* flush adapter cache */ 536 ciss_flush_adapter(sc); 537 538 if (sc->ciss_soft_reset) 539 ciss_soft_reset(sc); 540 mtx_unlock(&sc->ciss_mtx); 541 542 return(0); 543 } 544 545 static void 546 ciss_init_sysctl(struct ciss_softc *sc) 547 { 548 549 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 550 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 551 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 552 } 553 554 /************************************************************************ 555 * Perform PCI-specific attachment actions. 556 */ 557 static int 558 ciss_init_pci(struct ciss_softc *sc) 559 { 560 uintptr_t cbase, csize, cofs; 561 int error; 562 563 debug_called(1); 564 565 /* 566 * Allocate register window first (we need this to find the config 567 * struct). 568 */ 569 error = ENXIO; 570 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 571 if ((sc->ciss_regs_resource = 572 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 573 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 574 ciss_printf(sc, "can't allocate register window\n"); 575 return(ENXIO); 576 } 577 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 578 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 579 580 /* 581 * Find the BAR holding the config structure. If it's not the one 582 * we already mapped for registers, map it too. 583 */ 584 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 585 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 586 if ((sc->ciss_cfg_resource = 587 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 588 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 589 ciss_printf(sc, "can't allocate config window\n"); 590 return(ENXIO); 591 } 592 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 593 csize = rman_get_end(sc->ciss_cfg_resource) - 594 rman_get_start(sc->ciss_cfg_resource) + 1; 595 } else { 596 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 597 csize = rman_get_end(sc->ciss_regs_resource) - 598 rman_get_start(sc->ciss_regs_resource) + 1; 599 } 600 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 601 602 /* 603 * Use the base/size/offset values we just calculated to 604 * sanity-check the config structure. If it's OK, point to it. 605 */ 606 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 607 ciss_printf(sc, "config table outside window\n"); 608 return(ENXIO); 609 } 610 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 611 debug(1, "config struct at %p", sc->ciss_cfg); 612 613 /* 614 * Validate the config structure. If we supported other transport 615 * methods, we could select amongst them at this point in time. 616 */ 617 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 618 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 619 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 620 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 621 return(ENXIO); 622 } 623 624 /* 625 * Put the board into simple mode, and tell it we're using the low 626 * 4GB of RAM. Set the default interrupt coalescing options. 627 */ 628 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 629 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 630 return(ENXIO); 631 } 632 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 633 sc->ciss_cfg->command_physlimit = 0; 634 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 635 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 636 637 #ifdef __i386__ 638 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 639 #endif 640 641 if (ciss_update_config(sc)) { 642 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 643 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 644 return(ENXIO); 645 } 646 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 647 ciss_printf(sc, 648 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 649 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 650 return(ENXIO); 651 } 652 653 /* 654 * Wait for the adapter to come ready. 655 */ 656 if ((error = ciss_wait_adapter(sc)) != 0) 657 return(error); 658 659 /* 660 * Turn off interrupts before we go routing anything. 661 */ 662 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 663 664 /* 665 * Allocate and set up our interrupt. 666 */ 667 sc->ciss_irq_rid = 0; 668 if ((sc->ciss_irq_resource = 669 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 670 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 671 ciss_printf(sc, "can't allocate interrupt\n"); 672 return(ENXIO); 673 } 674 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 675 INTR_TYPE_CAM|INTR_MPSAFE, NULL, ciss_intr, sc, 676 &sc->ciss_intr)) { 677 ciss_printf(sc, "can't set up interrupt\n"); 678 return(ENXIO); 679 } 680 681 /* 682 * Allocate the parent bus DMA tag appropriate for our PCI 683 * interface. 684 * 685 * Note that "simple" adapters can only address within a 32-bit 686 * span. 687 */ 688 if (bus_dma_tag_create(NULL, /* parent */ 689 1, 0, /* alignment, boundary */ 690 BUS_SPACE_MAXADDR, /* lowaddr */ 691 BUS_SPACE_MAXADDR, /* highaddr */ 692 NULL, NULL, /* filter, filterarg */ 693 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 694 CISS_COMMAND_SG_LENGTH, /* nsegments */ 695 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 696 BUS_DMA_ALLOCNOW, /* flags */ 697 NULL, NULL, /* lockfunc, lockarg */ 698 &sc->ciss_parent_dmat)) { 699 ciss_printf(sc, "can't allocate parent DMA tag\n"); 700 return(ENOMEM); 701 } 702 703 /* 704 * Create DMA tag for mapping buffers into adapter-addressable 705 * space. 706 */ 707 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 708 1, 0, /* alignment, boundary */ 709 BUS_SPACE_MAXADDR, /* lowaddr */ 710 BUS_SPACE_MAXADDR, /* highaddr */ 711 NULL, NULL, /* filter, filterarg */ 712 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 713 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 714 0, /* flags */ 715 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 716 &sc->ciss_buffer_dmat)) { 717 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 718 return(ENOMEM); 719 } 720 return(0); 721 } 722 723 /************************************************************************ 724 * Wait for the adapter to come ready. 725 */ 726 static int 727 ciss_wait_adapter(struct ciss_softc *sc) 728 { 729 int i; 730 731 debug_called(1); 732 733 /* 734 * Wait for the adapter to come ready. 735 */ 736 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 737 ciss_printf(sc, "waiting for adapter to come ready...\n"); 738 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 739 DELAY(1000000); /* one second */ 740 if (i > 30) { 741 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 742 return(EIO); 743 } 744 } 745 } 746 return(0); 747 } 748 749 /************************************************************************ 750 * Flush the adapter cache. 751 */ 752 static int 753 ciss_flush_adapter(struct ciss_softc *sc) 754 { 755 struct ciss_request *cr; 756 struct ciss_bmic_flush_cache *cbfc; 757 int error, command_status; 758 759 debug_called(1); 760 761 cr = NULL; 762 cbfc = NULL; 763 764 /* 765 * Build a BMIC request to flush the cache. We don't disable 766 * it, as we may be going to do more I/O (eg. we are emulating 767 * the Synchronise Cache command). 768 */ 769 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 770 error = ENOMEM; 771 goto out; 772 } 773 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 774 (void **)&cbfc, sizeof(*cbfc))) != 0) 775 goto out; 776 777 /* 778 * Submit the request and wait for it to complete. 779 */ 780 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 781 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 782 goto out; 783 } 784 785 /* 786 * Check response. 787 */ 788 ciss_report_request(cr, &command_status, NULL); 789 switch(command_status) { 790 case CISS_CMD_STATUS_SUCCESS: 791 break; 792 default: 793 ciss_printf(sc, "error flushing cache (%s)\n", 794 ciss_name_command_status(command_status)); 795 error = EIO; 796 goto out; 797 } 798 799 out: 800 if (cbfc != NULL) 801 free(cbfc, CISS_MALLOC_CLASS); 802 if (cr != NULL) 803 ciss_release_request(cr); 804 return(error); 805 } 806 807 static void 808 ciss_soft_reset(struct ciss_softc *sc) 809 { 810 struct ciss_request *cr = NULL; 811 struct ciss_command *cc; 812 int i, error = 0; 813 814 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 815 /* only reset proxy controllers */ 816 if (sc->ciss_controllers[i].physical.bus == 0) 817 continue; 818 819 if ((error = ciss_get_request(sc, &cr)) != 0) 820 break; 821 822 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 823 NULL, 0)) != 0) 824 break; 825 826 cc = CISS_FIND_COMMAND(cr); 827 cc->header.address = sc->ciss_controllers[i]; 828 829 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 830 break; 831 832 ciss_release_request(cr); 833 } 834 835 if (error) 836 ciss_printf(sc, "error resetting controller (%d)\n", error); 837 838 if (cr != NULL) 839 ciss_release_request(cr); 840 } 841 842 /************************************************************************ 843 * Allocate memory for the adapter command structures, initialise 844 * the request structures. 845 * 846 * Note that the entire set of commands are allocated in a single 847 * contiguous slab. 848 */ 849 static int 850 ciss_init_requests(struct ciss_softc *sc) 851 { 852 struct ciss_request *cr; 853 int i; 854 855 debug_called(1); 856 857 /* 858 * Calculate the number of request structures/commands we are 859 * going to provide for this adapter. 860 */ 861 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 862 863 if (bootverbose) 864 ciss_printf(sc, "using %d of %d available commands\n", 865 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 866 867 /* 868 * Create the DMA tag for commands. 869 */ 870 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 871 1, 0, /* alignment, boundary */ 872 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 873 BUS_SPACE_MAXADDR, /* highaddr */ 874 NULL, NULL, /* filter, filterarg */ 875 CISS_COMMAND_ALLOC_SIZE * 876 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 877 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 878 BUS_DMA_ALLOCNOW, /* flags */ 879 NULL, NULL, /* lockfunc, lockarg */ 880 &sc->ciss_command_dmat)) { 881 ciss_printf(sc, "can't allocate command DMA tag\n"); 882 return(ENOMEM); 883 } 884 /* 885 * Allocate memory and make it available for DMA. 886 */ 887 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 888 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 889 ciss_printf(sc, "can't allocate command memory\n"); 890 return(ENOMEM); 891 } 892 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 893 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 894 ciss_command_map_helper, sc, 0); 895 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 896 897 /* 898 * Set up the request and command structures, push requests onto 899 * the free queue. 900 */ 901 for (i = 1; i < sc->ciss_max_requests; i++) { 902 cr = &sc->ciss_request[i]; 903 cr->cr_sc = sc; 904 cr->cr_tag = i; 905 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 906 ciss_enqueue_free(cr); 907 } 908 return(0); 909 } 910 911 static void 912 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 913 { 914 struct ciss_softc *sc = (struct ciss_softc *)arg; 915 916 sc->ciss_command_phys = segs->ds_addr; 917 } 918 919 /************************************************************************ 920 * Identify the adapter, print some information about it. 921 */ 922 static int 923 ciss_identify_adapter(struct ciss_softc *sc) 924 { 925 struct ciss_request *cr; 926 int error, command_status; 927 928 debug_called(1); 929 930 cr = NULL; 931 932 /* 933 * Get a request, allocate storage for the adapter data. 934 */ 935 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 936 (void **)&sc->ciss_id, 937 sizeof(*sc->ciss_id))) != 0) 938 goto out; 939 940 /* 941 * Submit the request and wait for it to complete. 942 */ 943 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 944 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 945 goto out; 946 } 947 948 /* 949 * Check response. 950 */ 951 ciss_report_request(cr, &command_status, NULL); 952 switch(command_status) { 953 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 954 break; 955 case CISS_CMD_STATUS_DATA_UNDERRUN: 956 case CISS_CMD_STATUS_DATA_OVERRUN: 957 ciss_printf(sc, "data over/underrun reading adapter information\n"); 958 default: 959 ciss_printf(sc, "error reading adapter information (%s)\n", 960 ciss_name_command_status(command_status)); 961 error = EIO; 962 goto out; 963 } 964 965 /* sanity-check reply */ 966 if (!sc->ciss_id->big_map_supported) { 967 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 968 error = ENXIO; 969 goto out; 970 } 971 972 #if 0 973 /* XXX later revisions may not need this */ 974 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 975 #endif 976 977 /* XXX only really required for old 5300 adapters? */ 978 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 979 980 /* print information */ 981 if (bootverbose) { 982 #if 0 /* XXX proxy volumes??? */ 983 ciss_printf(sc, " %d logical drive%s configured\n", 984 sc->ciss_id->configured_logical_drives, 985 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 986 #endif 987 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 988 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 989 990 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 991 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 992 ciss_printf(sc, " supported I/O methods 0x%b\n", 993 sc->ciss_cfg->supported_methods, 994 "\20\1READY\2simple\3performant\4MEMQ\n"); 995 ciss_printf(sc, " active I/O method 0x%b\n", 996 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 997 ciss_printf(sc, " 4G page base 0x%08x\n", 998 sc->ciss_cfg->command_physlimit); 999 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1000 sc->ciss_cfg->interrupt_coalesce_delay); 1001 ciss_printf(sc, " interrupt coalesce count %d\n", 1002 sc->ciss_cfg->interrupt_coalesce_count); 1003 ciss_printf(sc, " max outstanding commands %d\n", 1004 sc->ciss_cfg->max_outstanding_commands); 1005 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1006 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1007 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1008 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1009 } 1010 1011 out: 1012 if (error) { 1013 if (sc->ciss_id != NULL) { 1014 free(sc->ciss_id, CISS_MALLOC_CLASS); 1015 sc->ciss_id = NULL; 1016 } 1017 } 1018 if (cr != NULL) 1019 ciss_release_request(cr); 1020 return(error); 1021 } 1022 1023 /************************************************************************ 1024 * Helper routine for generating a list of logical and physical luns. 1025 */ 1026 static struct ciss_lun_report * 1027 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1028 { 1029 struct ciss_request *cr; 1030 struct ciss_command *cc; 1031 struct ciss_report_cdb *crc; 1032 struct ciss_lun_report *cll; 1033 int command_status; 1034 int report_size; 1035 int error = 0; 1036 1037 debug_called(1); 1038 1039 cr = NULL; 1040 cll = NULL; 1041 1042 /* 1043 * Get a request, allocate storage for the address list. 1044 */ 1045 if ((error = ciss_get_request(sc, &cr)) != 0) 1046 goto out; 1047 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1048 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1049 ciss_printf(sc, "can't allocate memory for lun report\n"); 1050 error = ENOMEM; 1051 goto out; 1052 } 1053 1054 /* 1055 * Build the Report Logical/Physical LUNs command. 1056 */ 1057 cc = CISS_FIND_COMMAND(cr); 1058 cr->cr_data = cll; 1059 cr->cr_length = report_size; 1060 cr->cr_flags = CISS_REQ_DATAIN; 1061 1062 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1063 cc->header.address.physical.bus = 0; 1064 cc->header.address.physical.target = 0; 1065 cc->cdb.cdb_length = sizeof(*crc); 1066 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1067 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1068 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1069 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1070 1071 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1072 bzero(crc, sizeof(*crc)); 1073 crc->opcode = opcode; 1074 crc->length = htonl(report_size); /* big-endian field */ 1075 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1076 1077 /* 1078 * Submit the request and wait for it to complete. (timeout 1079 * here should be much greater than above) 1080 */ 1081 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1082 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1083 goto out; 1084 } 1085 1086 /* 1087 * Check response. Note that data over/underrun is OK. 1088 */ 1089 ciss_report_request(cr, &command_status, NULL); 1090 switch(command_status) { 1091 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1092 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1093 break; 1094 case CISS_CMD_STATUS_DATA_OVERRUN: 1095 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1096 CISS_MAX_LOGICAL); 1097 break; 1098 default: 1099 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1100 ciss_name_command_status(command_status)); 1101 error = EIO; 1102 goto out; 1103 } 1104 ciss_release_request(cr); 1105 cr = NULL; 1106 1107 out: 1108 if (cr != NULL) 1109 ciss_release_request(cr); 1110 if (error && cll != NULL) { 1111 free(cll, CISS_MALLOC_CLASS); 1112 cll = NULL; 1113 } 1114 return(cll); 1115 } 1116 1117 /************************************************************************ 1118 * Find logical drives on the adapter. 1119 */ 1120 static int 1121 ciss_init_logical(struct ciss_softc *sc) 1122 { 1123 struct ciss_lun_report *cll; 1124 int error = 0, i, j; 1125 int ndrives; 1126 1127 debug_called(1); 1128 1129 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1130 CISS_MAX_LOGICAL); 1131 if (cll == NULL) { 1132 error = ENXIO; 1133 goto out; 1134 } 1135 1136 /* sanity-check reply */ 1137 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1138 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 1139 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1140 ndrives, CISS_MAX_LOGICAL); 1141 error = ENXIO; 1142 goto out; 1143 } 1144 1145 /* 1146 * Save logical drive information. 1147 */ 1148 if (bootverbose) { 1149 ciss_printf(sc, "%d logical drive%s\n", 1150 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1151 } 1152 1153 sc->ciss_logical = 1154 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1155 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1156 if (sc->ciss_logical == NULL) { 1157 error = ENXIO; 1158 goto out; 1159 } 1160 1161 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1162 sc->ciss_logical[i] = 1163 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1164 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1165 if (sc->ciss_logical[i] == NULL) { 1166 error = ENXIO; 1167 goto out; 1168 } 1169 1170 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1171 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1172 } 1173 1174 1175 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1176 if (i < ndrives) { 1177 struct ciss_ldrive *ld; 1178 int bus, target; 1179 1180 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1181 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1182 ld = &sc->ciss_logical[bus][target]; 1183 1184 ld->cl_address = cll->lun[i]; 1185 ld->cl_controller = &sc->ciss_controllers[bus]; 1186 if (ciss_identify_logical(sc, ld) != 0) 1187 continue; 1188 /* 1189 * If the drive has had media exchanged, we should bring it online. 1190 */ 1191 if (ld->cl_lstatus->media_exchanged) 1192 ciss_accept_media(sc, ld); 1193 1194 } 1195 } 1196 1197 out: 1198 if (cll != NULL) 1199 free(cll, CISS_MALLOC_CLASS); 1200 return(error); 1201 } 1202 1203 static int 1204 ciss_init_physical(struct ciss_softc *sc) 1205 { 1206 struct ciss_lun_report *cll; 1207 int error = 0, i; 1208 int nphys; 1209 int bus, target; 1210 1211 debug_called(1); 1212 1213 bus = 0; 1214 target = 0; 1215 1216 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1217 CISS_MAX_PHYSICAL); 1218 if (cll == NULL) { 1219 error = ENXIO; 1220 goto out; 1221 } 1222 1223 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1224 1225 if (bootverbose) { 1226 ciss_printf(sc, "%d physical device%s\n", 1227 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1228 } 1229 1230 /* 1231 * Figure out the bus mapping. 1232 * Logical buses include both the local logical bus for local arrays and 1233 * proxy buses for remote arrays. Physical buses are numbered by the 1234 * controller and represent physical buses that hold physical devices. 1235 * We shift these bus numbers so that everything fits into a single flat 1236 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1237 * numbers, and the physical bus numbers are shifted to be above that. 1238 * This results in the various driver arrays being indexed as follows: 1239 * 1240 * ciss_controllers[] - indexed by logical bus 1241 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1242 * being shifted by 32. 1243 * ciss_logical[][] - indexed by logical bus 1244 * ciss_physical[][] - indexed by physical bus 1245 * 1246 * XXX This is getting more and more hackish. CISS really doesn't play 1247 * well with a standard SCSI model; devices are addressed via magic 1248 * cookies, not via b/t/l addresses. Since there is no way to store 1249 * the cookie in the CAM device object, we have to keep these lookup 1250 * tables handy so that the devices can be found quickly at the cost 1251 * of wasting memory and having a convoluted lookup scheme. This 1252 * driver should probably be converted to block interface. 1253 */ 1254 /* 1255 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1256 * controller. A proxy controller is another physical controller 1257 * behind the primary PCI controller. We need to know about this 1258 * so that BMIC commands can be properly targeted. There can be 1259 * proxy controllers attached to a single PCI controller, so 1260 * find the highest numbered one so the array can be properly 1261 * sized. 1262 */ 1263 sc->ciss_max_logical_bus = 1; 1264 for (i = 0; i < nphys; i++) { 1265 if (cll->lun[i].physical.extra_address == 0) { 1266 bus = cll->lun[i].physical.bus; 1267 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1268 } else { 1269 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1270 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1271 } 1272 } 1273 1274 sc->ciss_controllers = 1275 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1276 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1277 1278 if (sc->ciss_controllers == NULL) { 1279 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1280 error = ENOMEM; 1281 goto out; 1282 } 1283 1284 /* setup a map of controller addresses */ 1285 for (i = 0; i < nphys; i++) { 1286 if (cll->lun[i].physical.extra_address == 0) { 1287 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1288 } 1289 } 1290 1291 sc->ciss_physical = 1292 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1293 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1294 if (sc->ciss_physical == NULL) { 1295 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1296 error = ENOMEM; 1297 goto out; 1298 } 1299 1300 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1301 sc->ciss_physical[i] = 1302 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1303 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1304 if (sc->ciss_physical[i] == NULL) { 1305 ciss_printf(sc, "Could not allocate memory for target map\n"); 1306 error = ENOMEM; 1307 goto out; 1308 } 1309 } 1310 1311 ciss_filter_physical(sc, cll); 1312 1313 out: 1314 if (cll != NULL) 1315 free(cll, CISS_MALLOC_CLASS); 1316 1317 return(error); 1318 } 1319 1320 static int 1321 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1322 { 1323 u_int32_t ea; 1324 int i, nphys; 1325 int bus, target; 1326 1327 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1328 for (i = 0; i < nphys; i++) { 1329 if (cll->lun[i].physical.extra_address == 0) 1330 continue; 1331 1332 /* 1333 * Filter out devices that we don't want. Level 3 LUNs could 1334 * probably be supported, but the docs don't give enough of a 1335 * hint to know how. 1336 * 1337 * The mode field of the physical address is likely set to have 1338 * hard disks masked out. Honor it unless the user has overridden 1339 * us with the tunable. We also munge the inquiry data for these 1340 * disks so that they only show up as passthrough devices. Keeping 1341 * them visible in this fashion is useful for doing things like 1342 * flashing firmware. 1343 */ 1344 ea = cll->lun[i].physical.extra_address; 1345 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1346 (CISS_EXTRA_MODE2(ea) == 0x3)) 1347 continue; 1348 if ((ciss_expose_hidden_physical == 0) && 1349 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1350 continue; 1351 1352 /* 1353 * Note: CISS firmware numbers physical busses starting at '1', not 1354 * '0'. This numbering is internal to the firmware and is only 1355 * used as a hint here. 1356 */ 1357 bus = CISS_EXTRA_BUS2(ea) - 1; 1358 target = CISS_EXTRA_TARGET2(ea); 1359 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1360 sc->ciss_physical[bus][target].cp_online = 1; 1361 } 1362 1363 return (0); 1364 } 1365 1366 static int 1367 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1368 { 1369 struct ciss_request *cr; 1370 struct ciss_command *cc; 1371 struct scsi_inquiry *inq; 1372 int error; 1373 int command_status; 1374 1375 cr = NULL; 1376 1377 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1378 1379 if ((error = ciss_get_request(sc, &cr)) != 0) 1380 goto out; 1381 1382 cc = CISS_FIND_COMMAND(cr); 1383 cr->cr_data = &ld->cl_geometry; 1384 cr->cr_length = sizeof(ld->cl_geometry); 1385 cr->cr_flags = CISS_REQ_DATAIN; 1386 1387 cc->header.address = ld->cl_address; 1388 cc->cdb.cdb_length = 6; 1389 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1390 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1391 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1392 cc->cdb.timeout = 30; 1393 1394 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1395 inq->opcode = INQUIRY; 1396 inq->byte2 = SI_EVPD; 1397 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1398 inq->length = sizeof(ld->cl_geometry); 1399 1400 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1401 ciss_printf(sc, "error getting geometry (%d)\n", error); 1402 goto out; 1403 } 1404 1405 ciss_report_request(cr, &command_status, NULL); 1406 switch(command_status) { 1407 case CISS_CMD_STATUS_SUCCESS: 1408 case CISS_CMD_STATUS_DATA_UNDERRUN: 1409 break; 1410 case CISS_CMD_STATUS_DATA_OVERRUN: 1411 ciss_printf(sc, "WARNING: Data overrun\n"); 1412 break; 1413 default: 1414 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1415 ciss_name_command_status(command_status)); 1416 break; 1417 } 1418 1419 out: 1420 if (cr != NULL) 1421 ciss_release_request(cr); 1422 return(error); 1423 } 1424 /************************************************************************ 1425 * Identify a logical drive, initialise state related to it. 1426 */ 1427 static int 1428 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1429 { 1430 struct ciss_request *cr; 1431 struct ciss_command *cc; 1432 struct ciss_bmic_cdb *cbc; 1433 int error, command_status; 1434 1435 debug_called(1); 1436 1437 cr = NULL; 1438 1439 /* 1440 * Build a BMIC request to fetch the drive ID. 1441 */ 1442 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1443 (void **)&ld->cl_ldrive, 1444 sizeof(*ld->cl_ldrive))) != 0) 1445 goto out; 1446 cc = CISS_FIND_COMMAND(cr); 1447 cc->header.address = *ld->cl_controller; /* target controller */ 1448 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1449 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1450 1451 /* 1452 * Submit the request and wait for it to complete. 1453 */ 1454 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1455 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1456 goto out; 1457 } 1458 1459 /* 1460 * Check response. 1461 */ 1462 ciss_report_request(cr, &command_status, NULL); 1463 switch(command_status) { 1464 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1465 break; 1466 case CISS_CMD_STATUS_DATA_UNDERRUN: 1467 case CISS_CMD_STATUS_DATA_OVERRUN: 1468 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1469 default: 1470 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1471 ciss_name_command_status(command_status)); 1472 error = EIO; 1473 goto out; 1474 } 1475 ciss_release_request(cr); 1476 cr = NULL; 1477 1478 /* 1479 * Build a CISS BMIC command to get the logical drive status. 1480 */ 1481 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1482 goto out; 1483 1484 /* 1485 * Get the logical drive geometry. 1486 */ 1487 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1488 goto out; 1489 1490 /* 1491 * Print the drive's basic characteristics. 1492 */ 1493 if (bootverbose) { 1494 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1495 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1496 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1497 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1498 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1499 ld->cl_ldrive->block_size)); 1500 1501 ciss_print_ldrive(sc, ld); 1502 } 1503 out: 1504 if (error != 0) { 1505 /* make the drive not-exist */ 1506 ld->cl_status = CISS_LD_NONEXISTENT; 1507 if (ld->cl_ldrive != NULL) { 1508 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1509 ld->cl_ldrive = NULL; 1510 } 1511 if (ld->cl_lstatus != NULL) { 1512 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1513 ld->cl_lstatus = NULL; 1514 } 1515 } 1516 if (cr != NULL) 1517 ciss_release_request(cr); 1518 1519 return(error); 1520 } 1521 1522 /************************************************************************ 1523 * Get status for a logical drive. 1524 * 1525 * XXX should we also do this in response to Test Unit Ready? 1526 */ 1527 static int 1528 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1529 { 1530 struct ciss_request *cr; 1531 struct ciss_command *cc; 1532 struct ciss_bmic_cdb *cbc; 1533 int error, command_status; 1534 1535 /* 1536 * Build a CISS BMIC command to get the logical drive status. 1537 */ 1538 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1539 (void **)&ld->cl_lstatus, 1540 sizeof(*ld->cl_lstatus))) != 0) 1541 goto out; 1542 cc = CISS_FIND_COMMAND(cr); 1543 cc->header.address = *ld->cl_controller; /* target controller */ 1544 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1545 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1546 1547 /* 1548 * Submit the request and wait for it to complete. 1549 */ 1550 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1551 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1552 goto out; 1553 } 1554 1555 /* 1556 * Check response. 1557 */ 1558 ciss_report_request(cr, &command_status, NULL); 1559 switch(command_status) { 1560 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1561 break; 1562 case CISS_CMD_STATUS_DATA_UNDERRUN: 1563 case CISS_CMD_STATUS_DATA_OVERRUN: 1564 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1565 default: 1566 ciss_printf(sc, "error reading logical drive status (%s)\n", 1567 ciss_name_command_status(command_status)); 1568 error = EIO; 1569 goto out; 1570 } 1571 1572 /* 1573 * Set the drive's summary status based on the returned status. 1574 * 1575 * XXX testing shows that a failed JBOD drive comes back at next 1576 * boot in "queued for expansion" mode. WTF? 1577 */ 1578 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1579 1580 out: 1581 if (cr != NULL) 1582 ciss_release_request(cr); 1583 return(error); 1584 } 1585 1586 /************************************************************************ 1587 * Notify the adapter of a config update. 1588 */ 1589 static int 1590 ciss_update_config(struct ciss_softc *sc) 1591 { 1592 int i; 1593 1594 debug_called(1); 1595 1596 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1597 for (i = 0; i < 1000; i++) { 1598 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1599 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1600 return(0); 1601 } 1602 DELAY(1000); 1603 } 1604 return(1); 1605 } 1606 1607 /************************************************************************ 1608 * Accept new media into a logical drive. 1609 * 1610 * XXX The drive has previously been offline; it would be good if we 1611 * could make sure it's not open right now. 1612 */ 1613 static int 1614 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1615 { 1616 struct ciss_request *cr; 1617 struct ciss_command *cc; 1618 struct ciss_bmic_cdb *cbc; 1619 int command_status; 1620 int error = 0, ldrive; 1621 1622 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1623 1624 debug(0, "bringing logical drive %d back online"); 1625 1626 /* 1627 * Build a CISS BMIC command to bring the drive back online. 1628 */ 1629 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1630 NULL, 0)) != 0) 1631 goto out; 1632 cc = CISS_FIND_COMMAND(cr); 1633 cc->header.address = *ld->cl_controller; /* target controller */ 1634 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1635 cbc->log_drive = ldrive; 1636 1637 /* 1638 * Submit the request and wait for it to complete. 1639 */ 1640 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1641 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1642 goto out; 1643 } 1644 1645 /* 1646 * Check response. 1647 */ 1648 ciss_report_request(cr, &command_status, NULL); 1649 switch(command_status) { 1650 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1651 /* we should get a logical drive status changed event here */ 1652 break; 1653 default: 1654 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1655 ciss_name_command_status(command_status)); 1656 break; 1657 } 1658 1659 out: 1660 if (cr != NULL) 1661 ciss_release_request(cr); 1662 return(error); 1663 } 1664 1665 /************************************************************************ 1666 * Release adapter resources. 1667 */ 1668 static void 1669 ciss_free(struct ciss_softc *sc) 1670 { 1671 struct ciss_request *cr; 1672 int i, j; 1673 1674 debug_called(1); 1675 1676 /* we're going away */ 1677 sc->ciss_flags |= CISS_FLAG_ABORTING; 1678 1679 /* terminate the periodic heartbeat routine */ 1680 callout_stop(&sc->ciss_periodic); 1681 1682 /* cancel the Event Notify chain */ 1683 ciss_notify_abort(sc); 1684 1685 ciss_kill_notify_thread(sc); 1686 1687 /* disconnect from CAM */ 1688 if (sc->ciss_cam_sim) { 1689 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1690 if (sc->ciss_cam_sim[i]) { 1691 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1692 cam_sim_free(sc->ciss_cam_sim[i], 0); 1693 } 1694 } 1695 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1696 CISS_PHYSICAL_BASE; i++) { 1697 if (sc->ciss_cam_sim[i]) { 1698 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1699 cam_sim_free(sc->ciss_cam_sim[i], 0); 1700 } 1701 } 1702 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1703 } 1704 if (sc->ciss_cam_devq) 1705 cam_simq_free(sc->ciss_cam_devq); 1706 1707 /* remove the control device */ 1708 mtx_unlock(&sc->ciss_mtx); 1709 if (sc->ciss_dev_t != NULL) 1710 destroy_dev(sc->ciss_dev_t); 1711 1712 /* Final cleanup of the callout. */ 1713 callout_drain(&sc->ciss_periodic); 1714 mtx_destroy(&sc->ciss_mtx); 1715 1716 /* free the controller data */ 1717 if (sc->ciss_id != NULL) 1718 free(sc->ciss_id, CISS_MALLOC_CLASS); 1719 1720 /* release I/O resources */ 1721 if (sc->ciss_regs_resource != NULL) 1722 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1723 sc->ciss_regs_rid, sc->ciss_regs_resource); 1724 if (sc->ciss_cfg_resource != NULL) 1725 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1726 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1727 if (sc->ciss_intr != NULL) 1728 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1729 if (sc->ciss_irq_resource != NULL) 1730 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1731 sc->ciss_irq_rid, sc->ciss_irq_resource); 1732 1733 /* destroy DMA tags */ 1734 if (sc->ciss_parent_dmat) 1735 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1736 1737 while ((cr = ciss_dequeue_free(sc)) != NULL) 1738 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1739 if (sc->ciss_buffer_dmat) 1740 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1741 1742 /* destroy command memory and DMA tag */ 1743 if (sc->ciss_command != NULL) { 1744 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1745 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1746 } 1747 if (sc->ciss_command_dmat) 1748 bus_dma_tag_destroy(sc->ciss_command_dmat); 1749 1750 if (sc->ciss_logical) { 1751 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1752 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1753 if (sc->ciss_logical[i][j].cl_ldrive) 1754 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1755 if (sc->ciss_logical[i][j].cl_lstatus) 1756 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1757 } 1758 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1759 } 1760 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1761 } 1762 1763 if (sc->ciss_physical) { 1764 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1765 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1766 free(sc->ciss_physical, CISS_MALLOC_CLASS); 1767 } 1768 1769 if (sc->ciss_controllers) 1770 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 1771 1772 } 1773 1774 /************************************************************************ 1775 * Give a command to the adapter. 1776 * 1777 * Note that this uses the simple transport layer directly. If we 1778 * want to add support for other layers, we'll need a switch of some 1779 * sort. 1780 * 1781 * Note that the simple transport layer has no way of refusing a 1782 * command; we only have as many request structures as the adapter 1783 * supports commands, so we don't have to check (this presumes that 1784 * the adapter can handle commands as fast as we throw them at it). 1785 */ 1786 static int 1787 ciss_start(struct ciss_request *cr) 1788 { 1789 struct ciss_command *cc; /* XXX debugging only */ 1790 int error; 1791 1792 cc = CISS_FIND_COMMAND(cr); 1793 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1794 1795 /* 1796 * Map the request's data. 1797 */ 1798 if ((error = ciss_map_request(cr))) 1799 return(error); 1800 1801 #if 0 1802 ciss_print_request(cr); 1803 #endif 1804 1805 return(0); 1806 } 1807 1808 /************************************************************************ 1809 * Fetch completed request(s) from the adapter, queue them for 1810 * completion handling. 1811 * 1812 * Note that this uses the simple transport layer directly. If we 1813 * want to add support for other layers, we'll need a switch of some 1814 * sort. 1815 * 1816 * Note that the simple transport mechanism does not require any 1817 * reentrancy protection; the OPQ read is atomic. If there is a 1818 * chance of a race with something else that might move the request 1819 * off the busy list, then we will have to lock against that 1820 * (eg. timeouts, etc.) 1821 */ 1822 static void 1823 ciss_done(struct ciss_softc *sc) 1824 { 1825 struct ciss_request *cr; 1826 struct ciss_command *cc; 1827 u_int32_t tag, index; 1828 int complete; 1829 1830 debug_called(3); 1831 1832 /* 1833 * Loop quickly taking requests from the adapter and moving them 1834 * from the busy queue to the completed queue. 1835 */ 1836 complete = 0; 1837 for (;;) { 1838 1839 /* see if the OPQ contains anything */ 1840 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1841 break; 1842 1843 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1844 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1845 break; 1846 index = tag >> 2; 1847 debug(2, "completed command %d%s", index, 1848 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1849 if (index >= sc->ciss_max_requests) { 1850 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1851 continue; 1852 } 1853 cr = &(sc->ciss_request[index]); 1854 cc = CISS_FIND_COMMAND(cr); 1855 cc->header.host_tag = tag; /* not updated by adapter */ 1856 if (ciss_remove_busy(cr)) { 1857 /* assume this is garbage out of the adapter */ 1858 ciss_printf(sc, "completed nonbusy request %d\n", index); 1859 } else { 1860 ciss_enqueue_complete(cr); 1861 } 1862 complete = 1; 1863 } 1864 1865 /* 1866 * Invoke completion processing. If we can defer this out of 1867 * interrupt context, that'd be good. 1868 */ 1869 if (complete) 1870 ciss_complete(sc); 1871 } 1872 1873 /************************************************************************ 1874 * Take an interrupt from the adapter. 1875 */ 1876 static void 1877 ciss_intr(void *arg) 1878 { 1879 struct ciss_softc *sc = (struct ciss_softc *)arg; 1880 1881 /* 1882 * The only interrupt we recognise indicates that there are 1883 * entries in the outbound post queue. 1884 */ 1885 mtx_lock(&sc->ciss_mtx); 1886 ciss_done(sc); 1887 mtx_unlock(&sc->ciss_mtx); 1888 } 1889 1890 /************************************************************************ 1891 * Process completed requests. 1892 * 1893 * Requests can be completed in three fashions: 1894 * 1895 * - by invoking a callback function (cr_complete is non-null) 1896 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1897 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1898 */ 1899 static void 1900 ciss_complete(struct ciss_softc *sc) 1901 { 1902 struct ciss_request *cr; 1903 1904 debug_called(2); 1905 1906 /* 1907 * Loop taking requests off the completed queue and performing 1908 * completion processing on them. 1909 */ 1910 for (;;) { 1911 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1912 break; 1913 ciss_unmap_request(cr); 1914 1915 /* 1916 * If the request has a callback, invoke it. 1917 */ 1918 if (cr->cr_complete != NULL) { 1919 cr->cr_complete(cr); 1920 continue; 1921 } 1922 1923 /* 1924 * If someone is sleeping on this request, wake them up. 1925 */ 1926 if (cr->cr_flags & CISS_REQ_SLEEP) { 1927 cr->cr_flags &= ~CISS_REQ_SLEEP; 1928 wakeup(cr); 1929 continue; 1930 } 1931 1932 /* 1933 * If someone is polling this request for completion, signal. 1934 */ 1935 if (cr->cr_flags & CISS_REQ_POLL) { 1936 cr->cr_flags &= ~CISS_REQ_POLL; 1937 continue; 1938 } 1939 1940 /* 1941 * Give up and throw the request back on the free queue. This 1942 * should never happen; resources will probably be lost. 1943 */ 1944 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1945 ciss_enqueue_free(cr); 1946 } 1947 } 1948 1949 /************************************************************************ 1950 * Report on the completion status of a request, and pass back SCSI 1951 * and command status values. 1952 */ 1953 static int 1954 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1955 { 1956 struct ciss_command *cc; 1957 struct ciss_error_info *ce; 1958 1959 debug_called(2); 1960 1961 cc = CISS_FIND_COMMAND(cr); 1962 ce = (struct ciss_error_info *)&(cc->sg[0]); 1963 1964 /* 1965 * We don't consider data under/overrun an error for the Report 1966 * Logical/Physical LUNs commands. 1967 */ 1968 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1969 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 1970 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 1971 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1972 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 1973 (cc->cdb.cdb[0] == INQUIRY))) { 1974 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1975 debug(2, "ignoring irrelevant under/overrun error"); 1976 } 1977 1978 /* 1979 * Check the command's error bit, if clear, there's no status and 1980 * everything is OK. 1981 */ 1982 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1983 if (scsi_status != NULL) 1984 *scsi_status = SCSI_STATUS_OK; 1985 if (command_status != NULL) 1986 *command_status = CISS_CMD_STATUS_SUCCESS; 1987 return(0); 1988 } else { 1989 if (command_status != NULL) 1990 *command_status = ce->command_status; 1991 if (scsi_status != NULL) { 1992 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1993 *scsi_status = ce->scsi_status; 1994 } else { 1995 *scsi_status = -1; 1996 } 1997 } 1998 if (bootverbose) 1999 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2000 ce->command_status, ciss_name_command_status(ce->command_status), 2001 ce->scsi_status); 2002 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2003 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 2004 ce->additional_error_info.invalid_command.offense_size, 2005 ce->additional_error_info.invalid_command.offense_offset, 2006 ce->additional_error_info.invalid_command.offense_value); 2007 } 2008 } 2009 #if 0 2010 ciss_print_request(cr); 2011 #endif 2012 return(1); 2013 } 2014 2015 /************************************************************************ 2016 * Issue a request and don't return until it's completed. 2017 * 2018 * Depending on adapter status, we may poll or sleep waiting for 2019 * completion. 2020 */ 2021 static int 2022 ciss_synch_request(struct ciss_request *cr, int timeout) 2023 { 2024 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2025 return(ciss_wait_request(cr, timeout)); 2026 } else { 2027 return(ciss_poll_request(cr, timeout)); 2028 } 2029 } 2030 2031 /************************************************************************ 2032 * Issue a request and poll for completion. 2033 * 2034 * Timeout in milliseconds. 2035 */ 2036 static int 2037 ciss_poll_request(struct ciss_request *cr, int timeout) 2038 { 2039 int error; 2040 2041 debug_called(2); 2042 2043 cr->cr_flags |= CISS_REQ_POLL; 2044 if ((error = ciss_start(cr)) != 0) 2045 return(error); 2046 2047 do { 2048 ciss_done(cr->cr_sc); 2049 if (!(cr->cr_flags & CISS_REQ_POLL)) 2050 return(0); 2051 DELAY(1000); 2052 } while (timeout-- >= 0); 2053 return(EWOULDBLOCK); 2054 } 2055 2056 /************************************************************************ 2057 * Issue a request and sleep waiting for completion. 2058 * 2059 * Timeout in milliseconds. Note that a spurious wakeup will reset 2060 * the timeout. 2061 */ 2062 static int 2063 ciss_wait_request(struct ciss_request *cr, int timeout) 2064 { 2065 int s, error; 2066 2067 debug_called(2); 2068 2069 cr->cr_flags |= CISS_REQ_SLEEP; 2070 if ((error = ciss_start(cr)) != 0) 2071 return(error); 2072 2073 s = splcam(); 2074 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2075 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2076 } 2077 splx(s); 2078 return(error); 2079 } 2080 2081 #if 0 2082 /************************************************************************ 2083 * Abort a request. Note that a potential exists here to race the 2084 * request being completed; the caller must deal with this. 2085 */ 2086 static int 2087 ciss_abort_request(struct ciss_request *ar) 2088 { 2089 struct ciss_request *cr; 2090 struct ciss_command *cc; 2091 struct ciss_message_cdb *cmc; 2092 int error; 2093 2094 debug_called(1); 2095 2096 /* get a request */ 2097 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2098 return(error); 2099 2100 /* build the abort command */ 2101 cc = CISS_FIND_COMMAND(cr); 2102 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2103 cc->header.address.physical.target = 0; 2104 cc->header.address.physical.bus = 0; 2105 cc->cdb.cdb_length = sizeof(*cmc); 2106 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2107 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2108 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2109 cc->cdb.timeout = 30; 2110 2111 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2112 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2113 cmc->type = CISS_MESSAGE_ABORT_TASK; 2114 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2115 2116 /* 2117 * Send the request and wait for a response. If we believe we 2118 * aborted the request OK, clear the flag that indicates it's 2119 * running. 2120 */ 2121 error = ciss_synch_request(cr, 35 * 1000); 2122 if (!error) 2123 error = ciss_report_request(cr, NULL, NULL); 2124 ciss_release_request(cr); 2125 2126 return(error); 2127 } 2128 #endif 2129 2130 2131 /************************************************************************ 2132 * Fetch and initialise a request 2133 */ 2134 static int 2135 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2136 { 2137 struct ciss_request *cr; 2138 2139 debug_called(2); 2140 2141 /* 2142 * Get a request and clean it up. 2143 */ 2144 if ((cr = ciss_dequeue_free(sc)) == NULL) 2145 return(ENOMEM); 2146 2147 cr->cr_data = NULL; 2148 cr->cr_flags = 0; 2149 cr->cr_complete = NULL; 2150 cr->cr_private = NULL; 2151 2152 ciss_preen_command(cr); 2153 *crp = cr; 2154 return(0); 2155 } 2156 2157 static void 2158 ciss_preen_command(struct ciss_request *cr) 2159 { 2160 struct ciss_command *cc; 2161 u_int32_t cmdphys; 2162 2163 /* 2164 * Clean up the command structure. 2165 * 2166 * Note that we set up the error_info structure here, since the 2167 * length can be overwritten by any command. 2168 */ 2169 cc = CISS_FIND_COMMAND(cr); 2170 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2171 cc->header.sg_total = 0; 2172 cc->header.host_tag = cr->cr_tag << 2; 2173 cc->header.host_tag_zeroes = 0; 2174 cmdphys = CISS_FIND_COMMANDPHYS(cr); 2175 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2176 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2177 } 2178 2179 /************************************************************************ 2180 * Release a request to the free list. 2181 */ 2182 static void 2183 ciss_release_request(struct ciss_request *cr) 2184 { 2185 struct ciss_softc *sc; 2186 2187 debug_called(2); 2188 2189 sc = cr->cr_sc; 2190 2191 /* release the request to the free queue */ 2192 ciss_requeue_free(cr); 2193 } 2194 2195 /************************************************************************ 2196 * Allocate a request that will be used to send a BMIC command. Do some 2197 * of the common setup here to avoid duplicating it everywhere else. 2198 */ 2199 static int 2200 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2201 int opcode, void **bufp, size_t bufsize) 2202 { 2203 struct ciss_request *cr; 2204 struct ciss_command *cc; 2205 struct ciss_bmic_cdb *cbc; 2206 void *buf; 2207 int error; 2208 int dataout; 2209 2210 debug_called(2); 2211 2212 cr = NULL; 2213 buf = NULL; 2214 2215 /* 2216 * Get a request. 2217 */ 2218 if ((error = ciss_get_request(sc, &cr)) != 0) 2219 goto out; 2220 2221 /* 2222 * Allocate data storage if requested, determine the data direction. 2223 */ 2224 dataout = 0; 2225 if ((bufsize > 0) && (bufp != NULL)) { 2226 if (*bufp == NULL) { 2227 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2228 error = ENOMEM; 2229 goto out; 2230 } 2231 } else { 2232 buf = *bufp; 2233 dataout = 1; /* we are given a buffer, so we are writing */ 2234 } 2235 } 2236 2237 /* 2238 * Build a CISS BMIC command to get the logical drive ID. 2239 */ 2240 cr->cr_data = buf; 2241 cr->cr_length = bufsize; 2242 if (!dataout) 2243 cr->cr_flags = CISS_REQ_DATAIN; 2244 2245 cc = CISS_FIND_COMMAND(cr); 2246 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2247 cc->header.address.physical.bus = 0; 2248 cc->header.address.physical.target = 0; 2249 cc->cdb.cdb_length = sizeof(*cbc); 2250 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2251 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2252 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2253 cc->cdb.timeout = 0; 2254 2255 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2256 bzero(cbc, sizeof(*cbc)); 2257 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2258 cbc->bmic_opcode = opcode; 2259 cbc->size = htons((u_int16_t)bufsize); 2260 2261 out: 2262 if (error) { 2263 if (cr != NULL) 2264 ciss_release_request(cr); 2265 } else { 2266 *crp = cr; 2267 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2268 *bufp = buf; 2269 } 2270 return(error); 2271 } 2272 2273 /************************************************************************ 2274 * Handle a command passed in from userspace. 2275 */ 2276 static int 2277 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2278 { 2279 struct ciss_request *cr; 2280 struct ciss_command *cc; 2281 struct ciss_error_info *ce; 2282 int error = 0; 2283 2284 debug_called(1); 2285 2286 cr = NULL; 2287 2288 /* 2289 * Get a request. 2290 */ 2291 while (ciss_get_request(sc, &cr) != 0) 2292 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2293 cc = CISS_FIND_COMMAND(cr); 2294 2295 /* 2296 * Allocate an in-kernel databuffer if required, copy in user data. 2297 */ 2298 cr->cr_length = ioc->buf_size; 2299 if (ioc->buf_size > 0) { 2300 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2301 error = ENOMEM; 2302 goto out; 2303 } 2304 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2305 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2306 goto out; 2307 } 2308 } 2309 2310 /* 2311 * Build the request based on the user command. 2312 */ 2313 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2314 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2315 2316 /* XXX anything else to populate here? */ 2317 2318 /* 2319 * Run the command. 2320 */ 2321 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2322 debug(0, "request failed - %d", error); 2323 goto out; 2324 } 2325 2326 /* 2327 * Check to see if the command succeeded. 2328 */ 2329 ce = (struct ciss_error_info *)&(cc->sg[0]); 2330 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2331 bzero(ce, sizeof(*ce)); 2332 2333 /* 2334 * Copy the results back to the user. 2335 */ 2336 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2337 if ((ioc->buf_size > 0) && 2338 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2339 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2340 goto out; 2341 } 2342 2343 /* done OK */ 2344 error = 0; 2345 2346 out: 2347 if ((cr != NULL) && (cr->cr_data != NULL)) 2348 free(cr->cr_data, CISS_MALLOC_CLASS); 2349 if (cr != NULL) 2350 ciss_release_request(cr); 2351 return(error); 2352 } 2353 2354 /************************************************************************ 2355 * Map a request into bus-visible space, initialise the scatter/gather 2356 * list. 2357 */ 2358 static int 2359 ciss_map_request(struct ciss_request *cr) 2360 { 2361 struct ciss_softc *sc; 2362 int error = 0; 2363 2364 debug_called(2); 2365 2366 sc = cr->cr_sc; 2367 2368 /* check that mapping is necessary */ 2369 if (cr->cr_flags & CISS_REQ_MAPPED) 2370 return(0); 2371 2372 cr->cr_flags |= CISS_REQ_MAPPED; 2373 2374 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2375 BUS_DMASYNC_PREWRITE); 2376 2377 if (cr->cr_data != NULL) { 2378 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2379 cr->cr_data, cr->cr_length, 2380 ciss_request_map_helper, cr, 0); 2381 if (error != 0) 2382 return (error); 2383 } else { 2384 /* 2385 * Post the command to the adapter. 2386 */ 2387 ciss_enqueue_busy(cr); 2388 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2389 } 2390 2391 return(0); 2392 } 2393 2394 static void 2395 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2396 { 2397 struct ciss_command *cc; 2398 struct ciss_request *cr; 2399 struct ciss_softc *sc; 2400 int i; 2401 2402 debug_called(2); 2403 2404 cr = (struct ciss_request *)arg; 2405 sc = cr->cr_sc; 2406 cc = CISS_FIND_COMMAND(cr); 2407 2408 for (i = 0; i < nseg; i++) { 2409 cc->sg[i].address = segs[i].ds_addr; 2410 cc->sg[i].length = segs[i].ds_len; 2411 cc->sg[i].extension = 0; 2412 } 2413 /* we leave the s/g table entirely within the command */ 2414 cc->header.sg_in_list = nseg; 2415 cc->header.sg_total = nseg; 2416 2417 if (cr->cr_flags & CISS_REQ_DATAIN) 2418 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2419 if (cr->cr_flags & CISS_REQ_DATAOUT) 2420 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2421 2422 /* 2423 * Post the command to the adapter. 2424 */ 2425 ciss_enqueue_busy(cr); 2426 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2427 } 2428 2429 /************************************************************************ 2430 * Unmap a request from bus-visible space. 2431 */ 2432 static void 2433 ciss_unmap_request(struct ciss_request *cr) 2434 { 2435 struct ciss_softc *sc; 2436 2437 debug_called(2); 2438 2439 sc = cr->cr_sc; 2440 2441 /* check that unmapping is necessary */ 2442 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2443 return; 2444 2445 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2446 BUS_DMASYNC_POSTWRITE); 2447 2448 if (cr->cr_data == NULL) 2449 goto out; 2450 2451 if (cr->cr_flags & CISS_REQ_DATAIN) 2452 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2453 if (cr->cr_flags & CISS_REQ_DATAOUT) 2454 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2455 2456 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2457 out: 2458 cr->cr_flags &= ~CISS_REQ_MAPPED; 2459 } 2460 2461 /************************************************************************ 2462 * Attach the driver to CAM. 2463 * 2464 * We put all the logical drives on a single SCSI bus. 2465 */ 2466 static int 2467 ciss_cam_init(struct ciss_softc *sc) 2468 { 2469 int i, maxbus; 2470 2471 debug_called(1); 2472 2473 /* 2474 * Allocate a devq. We can reuse this for the masked physical 2475 * devices if we decide to export these as well. 2476 */ 2477 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2478 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2479 return(ENOMEM); 2480 } 2481 2482 /* 2483 * Create a SIM. 2484 * 2485 * This naturally wastes a bit of memory. The alternative is to allocate 2486 * and register each bus as it is found, and then track them on a linked 2487 * list. Unfortunately, the driver has a few places where it needs to 2488 * look up the SIM based solely on bus number, and it's unclear whether 2489 * a list traversal would work for these situations. 2490 */ 2491 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2492 CISS_PHYSICAL_BASE); 2493 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2494 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2495 if (sc->ciss_cam_sim == NULL) { 2496 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2497 return(ENOMEM); 2498 } 2499 2500 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2501 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2502 "ciss", sc, 2503 device_get_unit(sc->ciss_dev), 2504 &sc->ciss_mtx, 2505 sc->ciss_max_requests - 2, 2506 sc->ciss_max_requests - 2, 2507 sc->ciss_cam_devq)) == NULL) { 2508 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2509 return(ENOMEM); 2510 } 2511 2512 /* 2513 * Register bus with this SIM. 2514 */ 2515 mtx_lock(&sc->ciss_mtx); 2516 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2517 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2518 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2519 mtx_unlock(&sc->ciss_mtx); 2520 return (ENXIO); 2521 } 2522 } 2523 mtx_unlock(&sc->ciss_mtx); 2524 } 2525 2526 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2527 CISS_PHYSICAL_BASE; i++) { 2528 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2529 "ciss", sc, 2530 device_get_unit(sc->ciss_dev), 2531 &sc->ciss_mtx, 1, 2532 sc->ciss_max_requests - 2, 2533 sc->ciss_cam_devq)) == NULL) { 2534 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2535 return (ENOMEM); 2536 } 2537 2538 mtx_lock(&sc->ciss_mtx); 2539 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2540 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2541 mtx_unlock(&sc->ciss_mtx); 2542 return (ENXIO); 2543 } 2544 mtx_unlock(&sc->ciss_mtx); 2545 } 2546 2547 /* 2548 * Initiate a rescan of the bus. 2549 */ 2550 mtx_lock(&sc->ciss_mtx); 2551 ciss_cam_rescan_all(sc); 2552 mtx_unlock(&sc->ciss_mtx); 2553 2554 return(0); 2555 } 2556 2557 /************************************************************************ 2558 * Initiate a rescan of the 'logical devices' SIM 2559 */ 2560 static void 2561 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2562 { 2563 struct cam_path *path; 2564 union ccb *ccb; 2565 2566 debug_called(1); 2567 2568 if ((ccb = malloc(sizeof(union ccb), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2569 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2570 return; 2571 } 2572 2573 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->ciss_cam_sim[bus]), 2574 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2575 ciss_printf(sc, "rescan failed (can't create path)\n"); 2576 free(ccb, CISS_MALLOC_CLASS); 2577 return; 2578 } 2579 2580 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2581 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2582 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2583 ccb->crcn.flags = CAM_FLAG_NONE; 2584 xpt_action(ccb); 2585 2586 /* scan is now in progress */ 2587 } 2588 2589 static void 2590 ciss_cam_rescan_all(struct ciss_softc *sc) 2591 { 2592 int i; 2593 2594 /* Rescan the logical buses */ 2595 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2596 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2597 /* Rescan the physical buses */ 2598 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2599 CISS_PHYSICAL_BASE; i++) 2600 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2601 } 2602 2603 static void 2604 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2605 { 2606 xpt_free_path(ccb->ccb_h.path); 2607 free(ccb, CISS_MALLOC_CLASS); 2608 } 2609 2610 /************************************************************************ 2611 * Handle requests coming from CAM 2612 */ 2613 static void 2614 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2615 { 2616 struct ciss_softc *sc; 2617 struct ccb_scsiio *csio; 2618 int bus, target; 2619 int physical; 2620 2621 sc = cam_sim_softc(sim); 2622 bus = cam_sim_bus(sim); 2623 csio = (struct ccb_scsiio *)&ccb->csio; 2624 target = csio->ccb_h.target_id; 2625 physical = CISS_IS_PHYSICAL(bus); 2626 2627 switch (ccb->ccb_h.func_code) { 2628 2629 /* perform SCSI I/O */ 2630 case XPT_SCSI_IO: 2631 if (!ciss_cam_action_io(sim, csio)) 2632 return; 2633 break; 2634 2635 /* perform geometry calculations */ 2636 case XPT_CALC_GEOMETRY: 2637 { 2638 struct ccb_calc_geometry *ccg = &ccb->ccg; 2639 struct ciss_ldrive *ld; 2640 2641 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2642 2643 ld = NULL; 2644 if (!physical) 2645 ld = &sc->ciss_logical[bus][target]; 2646 2647 /* 2648 * Use the cached geometry settings unless the fault tolerance 2649 * is invalid. 2650 */ 2651 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2652 u_int32_t secs_per_cylinder; 2653 2654 ccg->heads = 255; 2655 ccg->secs_per_track = 32; 2656 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2657 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2658 } else { 2659 ccg->heads = ld->cl_geometry.heads; 2660 ccg->secs_per_track = ld->cl_geometry.sectors; 2661 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2662 } 2663 ccb->ccb_h.status = CAM_REQ_CMP; 2664 break; 2665 } 2666 2667 /* handle path attribute inquiry */ 2668 case XPT_PATH_INQ: 2669 { 2670 struct ccb_pathinq *cpi = &ccb->cpi; 2671 2672 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2673 2674 cpi->version_num = 1; 2675 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2676 cpi->target_sprt = 0; 2677 cpi->hba_misc = 0; 2678 cpi->max_target = CISS_MAX_LOGICAL; 2679 cpi->max_lun = 0; /* 'logical drive' channel only */ 2680 cpi->initiator_id = CISS_MAX_LOGICAL; 2681 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2682 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2683 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2684 cpi->unit_number = cam_sim_unit(sim); 2685 cpi->bus_id = cam_sim_bus(sim); 2686 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2687 cpi->transport = XPORT_SPI; 2688 cpi->transport_version = 2; 2689 cpi->protocol = PROTO_SCSI; 2690 cpi->protocol_version = SCSI_REV_2; 2691 ccb->ccb_h.status = CAM_REQ_CMP; 2692 break; 2693 } 2694 2695 case XPT_GET_TRAN_SETTINGS: 2696 { 2697 struct ccb_trans_settings *cts = &ccb->cts; 2698 int bus, target; 2699 struct ccb_trans_settings_spi *spi = 2700 &cts->xport_specific.spi; 2701 2702 bus = cam_sim_bus(sim); 2703 target = cts->ccb_h.target_id; 2704 2705 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2706 /* disconnect always OK */ 2707 cts->protocol = PROTO_SCSI; 2708 cts->protocol_version = SCSI_REV_2; 2709 cts->transport = XPORT_SPI; 2710 cts->transport_version = 2; 2711 2712 spi->valid = CTS_SPI_VALID_DISC; 2713 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2714 2715 cts->ccb_h.status = CAM_REQ_CMP; 2716 break; 2717 } 2718 2719 default: /* we can't do this */ 2720 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2721 ccb->ccb_h.status = CAM_REQ_INVALID; 2722 break; 2723 } 2724 2725 xpt_done(ccb); 2726 } 2727 2728 /************************************************************************ 2729 * Handle a CAM SCSI I/O request. 2730 */ 2731 static int 2732 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2733 { 2734 struct ciss_softc *sc; 2735 int bus, target; 2736 struct ciss_request *cr; 2737 struct ciss_command *cc; 2738 int error; 2739 2740 sc = cam_sim_softc(sim); 2741 bus = cam_sim_bus(sim); 2742 target = csio->ccb_h.target_id; 2743 2744 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2745 2746 /* check that the CDB pointer is not to a physical address */ 2747 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2748 debug(3, " CDB pointer is to physical address"); 2749 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2750 } 2751 2752 /* if there is data transfer, it must be to/from a virtual address */ 2753 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2754 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2755 debug(3, " data pointer is to physical address"); 2756 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2757 } 2758 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2759 debug(3, " data has premature s/g setup"); 2760 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2761 } 2762 } 2763 2764 /* abandon aborted ccbs or those that have failed validation */ 2765 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2766 debug(3, "abandoning CCB due to abort/validation failure"); 2767 return(EINVAL); 2768 } 2769 2770 /* handle emulation of some SCSI commands ourself */ 2771 if (ciss_cam_emulate(sc, csio)) 2772 return(0); 2773 2774 /* 2775 * Get a request to manage this command. If we can't, return the 2776 * ccb, freeze the queue and flag so that we unfreeze it when a 2777 * request completes. 2778 */ 2779 if ((error = ciss_get_request(sc, &cr)) != 0) { 2780 xpt_freeze_simq(sim, 1); 2781 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2782 return(error); 2783 } 2784 2785 /* 2786 * Build the command. 2787 */ 2788 cc = CISS_FIND_COMMAND(cr); 2789 cr->cr_data = csio->data_ptr; 2790 cr->cr_length = csio->dxfer_len; 2791 cr->cr_complete = ciss_cam_complete; 2792 cr->cr_private = csio; 2793 2794 /* 2795 * Target the right logical volume. 2796 */ 2797 if (CISS_IS_PHYSICAL(bus)) 2798 cc->header.address = 2799 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 2800 else 2801 cc->header.address = 2802 sc->ciss_logical[bus][target].cl_address; 2803 cc->cdb.cdb_length = csio->cdb_len; 2804 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2805 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2806 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2807 cr->cr_flags = CISS_REQ_DATAOUT; 2808 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2809 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2810 cr->cr_flags = CISS_REQ_DATAIN; 2811 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2812 } else { 2813 cr->cr_flags = 0; 2814 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2815 } 2816 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2817 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2818 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2819 } else { 2820 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2821 } 2822 2823 /* 2824 * Submit the request to the adapter. 2825 * 2826 * Note that this may fail if we're unable to map the request (and 2827 * if we ever learn a transport layer other than simple, may fail 2828 * if the adapter rejects the command). 2829 */ 2830 if ((error = ciss_start(cr)) != 0) { 2831 xpt_freeze_simq(sim, 1); 2832 if (error == EINPROGRESS) { 2833 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2834 error = 0; 2835 } else { 2836 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2837 ciss_release_request(cr); 2838 } 2839 return(error); 2840 } 2841 2842 return(0); 2843 } 2844 2845 /************************************************************************ 2846 * Emulate SCSI commands the adapter doesn't handle as we might like. 2847 */ 2848 static int 2849 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2850 { 2851 int bus, target; 2852 u_int8_t opcode; 2853 2854 target = csio->ccb_h.target_id; 2855 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2856 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2857 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2858 2859 if (CISS_IS_PHYSICAL(bus)) { 2860 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 2861 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2862 xpt_done((union ccb *)csio); 2863 return(1); 2864 } else 2865 return(0); 2866 } 2867 2868 /* 2869 * Handle requests for volumes that don't exist or are not online. 2870 * A selection timeout is slightly better than an illegal request. 2871 * Other errors might be better. 2872 */ 2873 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 2874 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2875 xpt_done((union ccb *)csio); 2876 return(1); 2877 } 2878 2879 /* if we have to fake Synchronise Cache */ 2880 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2881 /* 2882 * If this is a Synchronise Cache command, typically issued when 2883 * a device is closed, flush the adapter and complete now. 2884 */ 2885 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2886 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2887 ciss_flush_adapter(sc); 2888 csio->ccb_h.status = CAM_REQ_CMP; 2889 xpt_done((union ccb *)csio); 2890 return(1); 2891 } 2892 } 2893 2894 return(0); 2895 } 2896 2897 /************************************************************************ 2898 * Check for possibly-completed commands. 2899 */ 2900 static void 2901 ciss_cam_poll(struct cam_sim *sim) 2902 { 2903 struct ciss_softc *sc = cam_sim_softc(sim); 2904 2905 debug_called(2); 2906 2907 ciss_done(sc); 2908 } 2909 2910 /************************************************************************ 2911 * Handle completion of a command - pass results back through the CCB 2912 */ 2913 static void 2914 ciss_cam_complete(struct ciss_request *cr) 2915 { 2916 struct ciss_softc *sc; 2917 struct ciss_command *cc; 2918 struct ciss_error_info *ce; 2919 struct ccb_scsiio *csio; 2920 int scsi_status; 2921 int command_status; 2922 2923 debug_called(2); 2924 2925 sc = cr->cr_sc; 2926 cc = CISS_FIND_COMMAND(cr); 2927 ce = (struct ciss_error_info *)&(cc->sg[0]); 2928 csio = (struct ccb_scsiio *)cr->cr_private; 2929 2930 /* 2931 * Extract status values from request. 2932 */ 2933 ciss_report_request(cr, &command_status, &scsi_status); 2934 csio->scsi_status = scsi_status; 2935 2936 /* 2937 * Handle specific SCSI status values. 2938 */ 2939 switch(scsi_status) { 2940 /* no status due to adapter error */ 2941 case -1: 2942 debug(0, "adapter error"); 2943 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2944 break; 2945 2946 /* no status due to command completed OK */ 2947 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2948 debug(2, "SCSI_STATUS_OK"); 2949 csio->ccb_h.status = CAM_REQ_CMP; 2950 break; 2951 2952 /* check condition, sense data included */ 2953 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2954 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 2955 ce->sense_length, ce->residual_count); 2956 bzero(&csio->sense_data, SSD_FULL_SIZE); 2957 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2958 csio->sense_len = ce->sense_length; 2959 csio->resid = ce->residual_count; 2960 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2961 #ifdef CISS_DEBUG 2962 { 2963 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2964 debug(0, "sense key %x", sns->flags & SSD_KEY); 2965 } 2966 #endif 2967 break; 2968 2969 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2970 debug(0, "SCSI_STATUS_BUSY"); 2971 csio->ccb_h.status = CAM_SCSI_BUSY; 2972 break; 2973 2974 default: 2975 debug(0, "unknown status 0x%x", csio->scsi_status); 2976 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2977 break; 2978 } 2979 2980 /* handle post-command fixup */ 2981 ciss_cam_complete_fixup(sc, csio); 2982 2983 /* tell CAM we're ready for more commands */ 2984 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2985 2986 xpt_done((union ccb *)csio); 2987 ciss_release_request(cr); 2988 } 2989 2990 /******************************************************************************** 2991 * Fix up the result of some commands here. 2992 */ 2993 static void 2994 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2995 { 2996 struct scsi_inquiry_data *inq; 2997 struct ciss_ldrive *cl; 2998 int bus, target; 2999 3000 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3001 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 3002 3003 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3004 target = csio->ccb_h.target_id; 3005 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3006 3007 /* 3008 * Don't let hard drives be seen by the DA driver. They will still be 3009 * attached by the PASS driver. 3010 */ 3011 if (CISS_IS_PHYSICAL(bus)) { 3012 if (SID_TYPE(inq) == T_DIRECT) 3013 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3014 return; 3015 } 3016 3017 cl = &sc->ciss_logical[bus][target]; 3018 3019 padstr(inq->vendor, "COMPAQ", 8); 3020 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 3021 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 3022 } 3023 } 3024 3025 3026 /******************************************************************************** 3027 * Find a peripheral attached at (target) 3028 */ 3029 static struct cam_periph * 3030 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3031 { 3032 struct cam_periph *periph; 3033 struct cam_path *path; 3034 int status; 3035 3036 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3037 target, 0); 3038 if (status == CAM_REQ_CMP) { 3039 periph = cam_periph_find(path, NULL); 3040 xpt_free_path(path); 3041 } else { 3042 periph = NULL; 3043 } 3044 return(periph); 3045 } 3046 3047 /******************************************************************************** 3048 * Name the device at (target) 3049 * 3050 * XXX is this strictly correct? 3051 */ 3052 static int 3053 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3054 { 3055 struct cam_periph *periph; 3056 3057 if (CISS_IS_PHYSICAL(bus)) 3058 return (0); 3059 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3060 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3061 periph->periph_name, periph->unit_number); 3062 return(0); 3063 } 3064 sc->ciss_logical[bus][target].cl_name[0] = 0; 3065 return(ENOENT); 3066 } 3067 3068 /************************************************************************ 3069 * Periodic status monitoring. 3070 */ 3071 static void 3072 ciss_periodic(void *arg) 3073 { 3074 struct ciss_softc *sc; 3075 struct ciss_request *cr = NULL; 3076 struct ciss_command *cc = NULL; 3077 int error = 0; 3078 3079 debug_called(1); 3080 3081 sc = (struct ciss_softc *)arg; 3082 3083 /* 3084 * Check the adapter heartbeat. 3085 */ 3086 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3087 sc->ciss_heart_attack++; 3088 debug(0, "adapter heart attack in progress 0x%x/%d", 3089 sc->ciss_heartbeat, sc->ciss_heart_attack); 3090 if (sc->ciss_heart_attack == 3) { 3091 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3092 ciss_disable_adapter(sc); 3093 return; 3094 } 3095 } else { 3096 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3097 sc->ciss_heart_attack = 0; 3098 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3099 } 3100 3101 /* 3102 * Send the NOP message and wait for a response. 3103 */ 3104 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3105 cc = CISS_FIND_COMMAND(cr); 3106 cr->cr_complete = ciss_nop_complete; 3107 cc->cdb.cdb_length = 1; 3108 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3109 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3110 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3111 cc->cdb.timeout = 0; 3112 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3113 3114 if ((error = ciss_start(cr)) != 0) { 3115 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3116 } 3117 } 3118 3119 /* 3120 * If the notify event request has died for some reason, or has 3121 * not started yet, restart it. 3122 */ 3123 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3124 debug(0, "(re)starting Event Notify chain"); 3125 ciss_notify_event(sc); 3126 } 3127 3128 /* 3129 * Reschedule. 3130 */ 3131 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3132 } 3133 3134 static void 3135 ciss_nop_complete(struct ciss_request *cr) 3136 { 3137 struct ciss_softc *sc; 3138 static int first_time = 1; 3139 3140 sc = cr->cr_sc; 3141 if (ciss_report_request(cr, NULL, NULL) != 0) { 3142 if (first_time == 1) { 3143 first_time = 0; 3144 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3145 } 3146 } 3147 3148 ciss_release_request(cr); 3149 } 3150 3151 /************************************************************************ 3152 * Disable the adapter. 3153 * 3154 * The all requests in completed queue is failed with hardware error. 3155 * This will cause failover in a multipath configuration. 3156 */ 3157 static void 3158 ciss_disable_adapter(struct ciss_softc *sc) 3159 { 3160 struct ciss_request *cr; 3161 struct ciss_command *cc; 3162 struct ciss_error_info *ce; 3163 int s; 3164 3165 s = splcam(); 3166 3167 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3168 pci_disable_busmaster(sc->ciss_dev); 3169 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3170 3171 for (;;) { 3172 if ((cr = ciss_dequeue_busy(sc)) == NULL) 3173 break; 3174 3175 cc = CISS_FIND_COMMAND(cr); 3176 ce = (struct ciss_error_info *)&(cc->sg[0]); 3177 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3178 ciss_enqueue_complete(cr); 3179 } 3180 3181 for (;;) { 3182 if ((cr = ciss_dequeue_complete(sc)) == NULL) 3183 break; 3184 3185 /* 3186 * If the request has a callback, invoke it. 3187 */ 3188 if (cr->cr_complete != NULL) { 3189 cr->cr_complete(cr); 3190 continue; 3191 } 3192 3193 /* 3194 * If someone is sleeping on this request, wake them up. 3195 */ 3196 if (cr->cr_flags & CISS_REQ_SLEEP) { 3197 cr->cr_flags &= ~CISS_REQ_SLEEP; 3198 wakeup(cr); 3199 continue; 3200 } 3201 } 3202 3203 splx(s); 3204 } 3205 3206 /************************************************************************ 3207 * Request a notification response from the adapter. 3208 * 3209 * If (cr) is NULL, this is the first request of the adapter, so 3210 * reset the adapter's message pointer and start with the oldest 3211 * message available. 3212 */ 3213 static void 3214 ciss_notify_event(struct ciss_softc *sc) 3215 { 3216 struct ciss_request *cr; 3217 struct ciss_command *cc; 3218 struct ciss_notify_cdb *cnc; 3219 int error; 3220 3221 debug_called(1); 3222 3223 cr = sc->ciss_periodic_notify; 3224 3225 /* get a request if we don't already have one */ 3226 if (cr == NULL) { 3227 if ((error = ciss_get_request(sc, &cr)) != 0) { 3228 debug(0, "can't get notify event request"); 3229 goto out; 3230 } 3231 sc->ciss_periodic_notify = cr; 3232 cr->cr_complete = ciss_notify_complete; 3233 debug(1, "acquired request %d", cr->cr_tag); 3234 } 3235 3236 /* 3237 * Get a databuffer if we don't already have one, note that the 3238 * adapter command wants a larger buffer than the actual 3239 * structure. 3240 */ 3241 if (cr->cr_data == NULL) { 3242 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3243 debug(0, "can't get notify event request buffer"); 3244 error = ENOMEM; 3245 goto out; 3246 } 3247 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3248 } 3249 3250 /* re-setup the request's command (since we never release it) XXX overkill*/ 3251 ciss_preen_command(cr); 3252 3253 /* (re)build the notify event command */ 3254 cc = CISS_FIND_COMMAND(cr); 3255 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3256 cc->header.address.physical.bus = 0; 3257 cc->header.address.physical.target = 0; 3258 3259 cc->cdb.cdb_length = sizeof(*cnc); 3260 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3261 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3262 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3263 cc->cdb.timeout = 0; /* no timeout, we hope */ 3264 3265 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3266 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3267 cnc->opcode = CISS_OPCODE_READ; 3268 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3269 cnc->timeout = 0; /* no timeout, we hope */ 3270 cnc->synchronous = 0; 3271 cnc->ordered = 0; 3272 cnc->seek_to_oldest = 0; 3273 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3274 cnc->new_only = 1; 3275 else 3276 cnc->new_only = 0; 3277 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3278 3279 /* submit the request */ 3280 error = ciss_start(cr); 3281 3282 out: 3283 if (error) { 3284 if (cr != NULL) { 3285 if (cr->cr_data != NULL) 3286 free(cr->cr_data, CISS_MALLOC_CLASS); 3287 ciss_release_request(cr); 3288 } 3289 sc->ciss_periodic_notify = NULL; 3290 debug(0, "can't submit notify event request"); 3291 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3292 } else { 3293 debug(1, "notify event submitted"); 3294 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3295 } 3296 } 3297 3298 static void 3299 ciss_notify_complete(struct ciss_request *cr) 3300 { 3301 struct ciss_command *cc; 3302 struct ciss_notify *cn; 3303 struct ciss_softc *sc; 3304 int scsi_status; 3305 int command_status; 3306 debug_called(1); 3307 3308 cc = CISS_FIND_COMMAND(cr); 3309 cn = (struct ciss_notify *)cr->cr_data; 3310 sc = cr->cr_sc; 3311 3312 /* 3313 * Report request results, decode status. 3314 */ 3315 ciss_report_request(cr, &command_status, &scsi_status); 3316 3317 /* 3318 * Abort the chain on a fatal error. 3319 * 3320 * XXX which of these are actually errors? 3321 */ 3322 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3323 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3324 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3325 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3326 ciss_name_command_status(command_status)); 3327 ciss_release_request(cr); 3328 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3329 return; 3330 } 3331 3332 /* 3333 * If the adapter gave us a text message, print it. 3334 */ 3335 if (cn->message[0] != 0) 3336 ciss_printf(sc, "*** %.80s\n", cn->message); 3337 3338 debug(0, "notify event class %d subclass %d detail %d", 3339 cn->class, cn->subclass, cn->detail); 3340 3341 /* 3342 * If the response indicates that the notifier has been aborted, 3343 * release the notifier command. 3344 */ 3345 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3346 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3347 (cn->detail == 1)) { 3348 debug(0, "notifier exiting"); 3349 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3350 ciss_release_request(cr); 3351 sc->ciss_periodic_notify = NULL; 3352 wakeup(&sc->ciss_periodic_notify); 3353 } else { 3354 /* Handle notify events in a kernel thread */ 3355 ciss_enqueue_notify(cr); 3356 sc->ciss_periodic_notify = NULL; 3357 wakeup(&sc->ciss_periodic_notify); 3358 wakeup(&sc->ciss_notify); 3359 } 3360 /* 3361 * Send a new notify event command, if we're not aborting. 3362 */ 3363 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3364 ciss_notify_event(sc); 3365 } 3366 } 3367 3368 /************************************************************************ 3369 * Abort the Notify Event chain. 3370 * 3371 * Note that we can't just abort the command in progress; we have to 3372 * explicitly issue an Abort Notify Event command in order for the 3373 * adapter to clean up correctly. 3374 * 3375 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3376 * the chain will not restart itself. 3377 */ 3378 static int 3379 ciss_notify_abort(struct ciss_softc *sc) 3380 { 3381 struct ciss_request *cr; 3382 struct ciss_command *cc; 3383 struct ciss_notify_cdb *cnc; 3384 int error, s, command_status, scsi_status; 3385 3386 debug_called(1); 3387 3388 cr = NULL; 3389 error = 0; 3390 3391 /* verify that there's an outstanding command */ 3392 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3393 goto out; 3394 3395 /* get a command to issue the abort with */ 3396 if ((error = ciss_get_request(sc, &cr))) 3397 goto out; 3398 3399 /* get a buffer for the result */ 3400 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3401 debug(0, "can't get notify event request buffer"); 3402 error = ENOMEM; 3403 goto out; 3404 } 3405 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3406 3407 /* build the CDB */ 3408 cc = CISS_FIND_COMMAND(cr); 3409 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3410 cc->header.address.physical.bus = 0; 3411 cc->header.address.physical.target = 0; 3412 cc->cdb.cdb_length = sizeof(*cnc); 3413 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3414 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3415 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3416 cc->cdb.timeout = 0; /* no timeout, we hope */ 3417 3418 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3419 bzero(cnc, sizeof(*cnc)); 3420 cnc->opcode = CISS_OPCODE_WRITE; 3421 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3422 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3423 3424 ciss_print_request(cr); 3425 3426 /* 3427 * Submit the request and wait for it to complete. 3428 */ 3429 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3430 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3431 goto out; 3432 } 3433 3434 /* 3435 * Check response. 3436 */ 3437 ciss_report_request(cr, &command_status, &scsi_status); 3438 switch(command_status) { 3439 case CISS_CMD_STATUS_SUCCESS: 3440 break; 3441 case CISS_CMD_STATUS_INVALID_COMMAND: 3442 /* 3443 * Some older adapters don't support the CISS version of this 3444 * command. Fall back to using the BMIC version. 3445 */ 3446 error = ciss_notify_abort_bmic(sc); 3447 if (error != 0) 3448 goto out; 3449 break; 3450 3451 case CISS_CMD_STATUS_TARGET_STATUS: 3452 /* 3453 * This can happen if the adapter thinks there wasn't an outstanding 3454 * Notify Event command but we did. We clean up here. 3455 */ 3456 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3457 if (sc->ciss_periodic_notify != NULL) 3458 ciss_release_request(sc->ciss_periodic_notify); 3459 error = 0; 3460 goto out; 3461 } 3462 /* FALLTHROUGH */ 3463 3464 default: 3465 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3466 ciss_name_command_status(command_status)); 3467 error = EIO; 3468 goto out; 3469 } 3470 3471 /* 3472 * Sleep waiting for the notifier command to complete. Note 3473 * that if it doesn't, we may end up in a bad situation, since 3474 * the adapter may deliver it later. Also note that the adapter 3475 * requires the Notify Event command to be cancelled in order to 3476 * maintain internal bookkeeping. 3477 */ 3478 s = splcam(); 3479 while (sc->ciss_periodic_notify != NULL) { 3480 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3481 if (error == EWOULDBLOCK) { 3482 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3483 break; 3484 } 3485 } 3486 splx(s); 3487 3488 out: 3489 /* release the cancel request */ 3490 if (cr != NULL) { 3491 if (cr->cr_data != NULL) 3492 free(cr->cr_data, CISS_MALLOC_CLASS); 3493 ciss_release_request(cr); 3494 } 3495 if (error == 0) 3496 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3497 return(error); 3498 } 3499 3500 /************************************************************************ 3501 * Abort the Notify Event chain using a BMIC command. 3502 */ 3503 static int 3504 ciss_notify_abort_bmic(struct ciss_softc *sc) 3505 { 3506 struct ciss_request *cr; 3507 int error, command_status; 3508 3509 debug_called(1); 3510 3511 cr = NULL; 3512 error = 0; 3513 3514 /* verify that there's an outstanding command */ 3515 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3516 goto out; 3517 3518 /* 3519 * Build a BMIC command to cancel the Notify on Event command. 3520 * 3521 * Note that we are sending a CISS opcode here. Odd. 3522 */ 3523 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3524 NULL, 0)) != 0) 3525 goto out; 3526 3527 /* 3528 * Submit the request and wait for it to complete. 3529 */ 3530 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3531 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3532 goto out; 3533 } 3534 3535 /* 3536 * Check response. 3537 */ 3538 ciss_report_request(cr, &command_status, NULL); 3539 switch(command_status) { 3540 case CISS_CMD_STATUS_SUCCESS: 3541 break; 3542 default: 3543 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3544 ciss_name_command_status(command_status)); 3545 error = EIO; 3546 goto out; 3547 } 3548 3549 out: 3550 if (cr != NULL) 3551 ciss_release_request(cr); 3552 return(error); 3553 } 3554 3555 /************************************************************************ 3556 * Handle rescanning all the logical volumes when a notify event 3557 * causes the drives to come online or offline. 3558 */ 3559 static void 3560 ciss_notify_rescan_logical(struct ciss_softc *sc) 3561 { 3562 struct ciss_lun_report *cll; 3563 struct ciss_ldrive *ld; 3564 int i, j, ndrives; 3565 3566 /* 3567 * We must rescan all logical volumes to get the right logical 3568 * drive address. 3569 */ 3570 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3571 CISS_MAX_LOGICAL); 3572 if (cll == NULL) 3573 return; 3574 3575 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3576 3577 /* 3578 * Delete any of the drives which were destroyed by the 3579 * firmware. 3580 */ 3581 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3582 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3583 ld = &sc->ciss_logical[i][j]; 3584 3585 if (ld->cl_update == 0) 3586 continue; 3587 3588 if (ld->cl_status != CISS_LD_ONLINE) { 3589 ciss_cam_rescan_target(sc, i, j); 3590 ld->cl_update = 0; 3591 if (ld->cl_ldrive) 3592 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3593 if (ld->cl_lstatus) 3594 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3595 3596 ld->cl_ldrive = NULL; 3597 ld->cl_lstatus = NULL; 3598 } 3599 } 3600 } 3601 3602 /* 3603 * Scan for new drives. 3604 */ 3605 for (i = 0; i < ndrives; i++) { 3606 int bus, target; 3607 3608 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3609 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3610 ld = &sc->ciss_logical[bus][target]; 3611 3612 if (ld->cl_update == 0) 3613 continue; 3614 3615 ld->cl_update = 0; 3616 ld->cl_address = cll->lun[i]; 3617 ld->cl_controller = &sc->ciss_controllers[bus]; 3618 if (ciss_identify_logical(sc, ld) == 0) { 3619 ciss_cam_rescan_target(sc, bus, target); 3620 } 3621 } 3622 free(cll, CISS_MALLOC_CLASS); 3623 } 3624 3625 /************************************************************************ 3626 * Handle a notify event relating to the status of a logical drive. 3627 * 3628 * XXX need to be able to defer some of these to properly handle 3629 * calling the "ID Physical drive" command, unless the 'extended' 3630 * drive IDs are always in BIG_MAP format. 3631 */ 3632 static void 3633 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3634 { 3635 struct ciss_ldrive *ld; 3636 int ostatus, bus, target; 3637 3638 debug_called(2); 3639 3640 bus = cn->device.physical.bus; 3641 target = cn->data.logical_status.logical_drive; 3642 ld = &sc->ciss_logical[bus][target]; 3643 3644 switch (cn->subclass) { 3645 case CISS_NOTIFY_LOGICAL_STATUS: 3646 switch (cn->detail) { 3647 case 0: 3648 ciss_name_device(sc, bus, target); 3649 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3650 cn->data.logical_status.logical_drive, ld->cl_name, 3651 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3652 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3653 cn->data.logical_status.spare_state, 3654 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3655 3656 /* 3657 * Update our idea of the drive's status. 3658 */ 3659 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3660 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3661 if (ld->cl_lstatus != NULL) 3662 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3663 3664 /* 3665 * Have CAM rescan the drive if its status has changed. 3666 */ 3667 if (ostatus != ld->cl_status) { 3668 ld->cl_update = 1; 3669 ciss_notify_rescan_logical(sc); 3670 } 3671 3672 break; 3673 3674 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3675 ciss_name_device(sc, bus, target); 3676 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3677 cn->data.logical_status.logical_drive, ld->cl_name); 3678 ciss_accept_media(sc, ld); 3679 3680 ld->cl_update = 1; 3681 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3682 ciss_notify_rescan_logical(sc); 3683 break; 3684 3685 case 2: 3686 case 3: 3687 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3688 cn->data.rebuild_aborted.logical_drive, 3689 ld->cl_name, 3690 (cn->detail == 2) ? "read" : "write"); 3691 break; 3692 } 3693 break; 3694 3695 case CISS_NOTIFY_LOGICAL_ERROR: 3696 if (cn->detail == 0) { 3697 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3698 cn->data.io_error.logical_drive, 3699 ld->cl_name, 3700 cn->data.io_error.failure_bus, 3701 cn->data.io_error.failure_drive); 3702 /* XXX should we take the drive down at this point, or will we be told? */ 3703 } 3704 break; 3705 3706 case CISS_NOTIFY_LOGICAL_SURFACE: 3707 if (cn->detail == 0) 3708 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3709 cn->data.consistency_completed.logical_drive, 3710 ld->cl_name); 3711 break; 3712 } 3713 } 3714 3715 /************************************************************************ 3716 * Handle a notify event relating to the status of a physical drive. 3717 */ 3718 static void 3719 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3720 { 3721 } 3722 3723 /************************************************************************ 3724 * Handle a notify event relating to the status of a physical drive. 3725 */ 3726 static void 3727 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 3728 { 3729 struct ciss_lun_report *cll = NULL; 3730 int bus, target; 3731 int s; 3732 3733 switch (cn->subclass) { 3734 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 3735 case CISS_NOTIFY_HOTPLUG_NONDISK: 3736 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 3737 target = 3738 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 3739 3740 s = splcam(); 3741 if (cn->detail == 0) { 3742 /* 3743 * Mark the device offline so that it'll start producing selection 3744 * timeouts to the upper layer. 3745 */ 3746 if ((bus >= 0) && (target >= 0)) 3747 sc->ciss_physical[bus][target].cp_online = 0; 3748 } else { 3749 /* 3750 * Rescan the physical lun list for new items 3751 */ 3752 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 3753 CISS_MAX_PHYSICAL); 3754 if (cll == NULL) { 3755 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 3756 break; 3757 } 3758 ciss_filter_physical(sc, cll); 3759 } 3760 splx(s); 3761 break; 3762 3763 default: 3764 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 3765 return; 3766 } 3767 3768 if (cll != NULL) 3769 free(cll, CISS_MALLOC_CLASS); 3770 } 3771 3772 /************************************************************************ 3773 * Handle deferred processing of notify events. Notify events may need 3774 * sleep which is unsafe during an interrupt. 3775 */ 3776 static void 3777 ciss_notify_thread(void *arg) 3778 { 3779 struct ciss_softc *sc; 3780 struct ciss_request *cr; 3781 struct ciss_notify *cn; 3782 int s; 3783 3784 sc = (struct ciss_softc *)arg; 3785 #if __FreeBSD_version >= 500000 3786 mtx_lock(&sc->ciss_mtx); 3787 #endif 3788 3789 s = splcam(); 3790 for (;;) { 3791 if (TAILQ_EMPTY(&sc->ciss_notify) != 0 && 3792 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 3793 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 3794 } 3795 3796 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 3797 break; 3798 3799 cr = ciss_dequeue_notify(sc); 3800 splx(s); 3801 3802 if (cr == NULL) 3803 panic("cr null"); 3804 cn = (struct ciss_notify *)cr->cr_data; 3805 3806 switch (cn->class) { 3807 case CISS_NOTIFY_HOTPLUG: 3808 ciss_notify_hotplug(sc, cn); 3809 break; 3810 case CISS_NOTIFY_LOGICAL: 3811 ciss_notify_logical(sc, cn); 3812 break; 3813 case CISS_NOTIFY_PHYSICAL: 3814 ciss_notify_physical(sc, cn); 3815 break; 3816 } 3817 3818 ciss_release_request(cr); 3819 3820 s = splcam(); 3821 } 3822 sc->ciss_notify_thread = NULL; 3823 wakeup(&sc->ciss_notify_thread); 3824 splx(s); 3825 3826 #if __FreeBSD_version >= 500000 3827 mtx_unlock(&sc->ciss_mtx); 3828 #endif 3829 kproc_exit(0); 3830 } 3831 3832 /************************************************************************ 3833 * Start the notification kernel thread. 3834 */ 3835 static void 3836 ciss_spawn_notify_thread(struct ciss_softc *sc) 3837 { 3838 3839 #if __FreeBSD_version > 500005 3840 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 3841 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 3842 device_get_unit(sc->ciss_dev))) 3843 #else 3844 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 3845 &sc->ciss_notify_thread, "ciss_notify%d", 3846 device_get_unit(sc->ciss_dev))) 3847 #endif 3848 panic("Could not create notify thread\n"); 3849 } 3850 3851 /************************************************************************ 3852 * Kill the notification kernel thread. 3853 */ 3854 static void 3855 ciss_kill_notify_thread(struct ciss_softc *sc) 3856 { 3857 3858 if (sc->ciss_notify_thread == NULL) 3859 return; 3860 3861 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 3862 wakeup(&sc->ciss_notify); 3863 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 3864 } 3865 3866 /************************************************************************ 3867 * Print a request. 3868 */ 3869 static void 3870 ciss_print_request(struct ciss_request *cr) 3871 { 3872 struct ciss_softc *sc; 3873 struct ciss_command *cc; 3874 int i; 3875 3876 sc = cr->cr_sc; 3877 cc = CISS_FIND_COMMAND(cr); 3878 3879 ciss_printf(sc, "REQUEST @ %p\n", cr); 3880 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3881 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3882 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3883 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3884 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3885 switch(cc->header.address.mode.mode) { 3886 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3887 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3888 ciss_printf(sc, " physical bus %d target %d\n", 3889 cc->header.address.physical.bus, cc->header.address.physical.target); 3890 break; 3891 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3892 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3893 break; 3894 } 3895 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3896 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3897 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3898 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3899 cc->cdb.cdb_length, 3900 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3901 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3902 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3903 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3904 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3905 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3906 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3907 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3908 3909 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3910 /* XXX print error info */ 3911 } else { 3912 /* since we don't use chained s/g, don't support it here */ 3913 for (i = 0; i < cc->header.sg_in_list; i++) { 3914 if ((i % 4) == 0) 3915 ciss_printf(sc, " "); 3916 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3917 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3918 printf("\n"); 3919 } 3920 } 3921 } 3922 3923 /************************************************************************ 3924 * Print information about the status of a logical drive. 3925 */ 3926 static void 3927 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3928 { 3929 int bus, target, i; 3930 3931 if (ld->cl_lstatus == NULL) { 3932 printf("does not exist\n"); 3933 return; 3934 } 3935 3936 /* print drive status */ 3937 switch(ld->cl_lstatus->status) { 3938 case CISS_LSTATUS_OK: 3939 printf("online\n"); 3940 break; 3941 case CISS_LSTATUS_INTERIM_RECOVERY: 3942 printf("in interim recovery mode\n"); 3943 break; 3944 case CISS_LSTATUS_READY_RECOVERY: 3945 printf("ready to begin recovery\n"); 3946 break; 3947 case CISS_LSTATUS_RECOVERING: 3948 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3949 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3950 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3951 bus, target, ld->cl_lstatus->blocks_to_recover); 3952 break; 3953 case CISS_LSTATUS_EXPANDING: 3954 printf("being expanded, %u blocks remaining\n", 3955 ld->cl_lstatus->blocks_to_recover); 3956 break; 3957 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3958 printf("queued for expansion\n"); 3959 break; 3960 case CISS_LSTATUS_FAILED: 3961 printf("queued for expansion\n"); 3962 break; 3963 case CISS_LSTATUS_WRONG_PDRIVE: 3964 printf("wrong physical drive inserted\n"); 3965 break; 3966 case CISS_LSTATUS_MISSING_PDRIVE: 3967 printf("missing a needed physical drive\n"); 3968 break; 3969 case CISS_LSTATUS_BECOMING_READY: 3970 printf("becoming ready\n"); 3971 break; 3972 } 3973 3974 /* print failed physical drives */ 3975 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3976 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3977 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3978 if (bus == -1) 3979 continue; 3980 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3981 ld->cl_lstatus->drive_failure_map[i]); 3982 } 3983 } 3984 3985 #ifdef CISS_DEBUG 3986 /************************************************************************ 3987 * Print information about the controller/driver. 3988 */ 3989 static void 3990 ciss_print_adapter(struct ciss_softc *sc) 3991 { 3992 int i, j; 3993 3994 ciss_printf(sc, "ADAPTER:\n"); 3995 for (i = 0; i < CISSQ_COUNT; i++) { 3996 ciss_printf(sc, "%s %d/%d\n", 3997 i == 0 ? "free" : 3998 i == 1 ? "busy" : "complete", 3999 sc->ciss_qstat[i].q_length, 4000 sc->ciss_qstat[i].q_max); 4001 } 4002 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4003 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4004 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4005 4006 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4007 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 4008 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4009 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4010 } 4011 } 4012 4013 /* XXX Should physical drives be printed out here? */ 4014 4015 for (i = 1; i < sc->ciss_max_requests; i++) 4016 ciss_print_request(sc->ciss_request + i); 4017 } 4018 4019 /* DDB hook */ 4020 static void 4021 ciss_print0(void) 4022 { 4023 struct ciss_softc *sc; 4024 4025 sc = devclass_get_softc(devclass_find("ciss"), 0); 4026 if (sc == NULL) { 4027 printf("no ciss controllers\n"); 4028 } else { 4029 ciss_print_adapter(sc); 4030 } 4031 } 4032 #endif 4033 4034 /************************************************************************ 4035 * Return a name for a logical drive status value. 4036 */ 4037 static const char * 4038 ciss_name_ldrive_status(int status) 4039 { 4040 switch (status) { 4041 case CISS_LSTATUS_OK: 4042 return("OK"); 4043 case CISS_LSTATUS_FAILED: 4044 return("failed"); 4045 case CISS_LSTATUS_NOT_CONFIGURED: 4046 return("not configured"); 4047 case CISS_LSTATUS_INTERIM_RECOVERY: 4048 return("interim recovery"); 4049 case CISS_LSTATUS_READY_RECOVERY: 4050 return("ready for recovery"); 4051 case CISS_LSTATUS_RECOVERING: 4052 return("recovering"); 4053 case CISS_LSTATUS_WRONG_PDRIVE: 4054 return("wrong physical drive inserted"); 4055 case CISS_LSTATUS_MISSING_PDRIVE: 4056 return("missing physical drive"); 4057 case CISS_LSTATUS_EXPANDING: 4058 return("expanding"); 4059 case CISS_LSTATUS_BECOMING_READY: 4060 return("becoming ready"); 4061 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4062 return("queued for expansion"); 4063 } 4064 return("unknown status"); 4065 } 4066 4067 /************************************************************************ 4068 * Return an online/offline/nonexistent value for a logical drive 4069 * status value. 4070 */ 4071 static int 4072 ciss_decode_ldrive_status(int status) 4073 { 4074 switch(status) { 4075 case CISS_LSTATUS_NOT_CONFIGURED: 4076 return(CISS_LD_NONEXISTENT); 4077 4078 case CISS_LSTATUS_OK: 4079 case CISS_LSTATUS_INTERIM_RECOVERY: 4080 case CISS_LSTATUS_READY_RECOVERY: 4081 case CISS_LSTATUS_RECOVERING: 4082 case CISS_LSTATUS_EXPANDING: 4083 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4084 return(CISS_LD_ONLINE); 4085 4086 case CISS_LSTATUS_FAILED: 4087 case CISS_LSTATUS_WRONG_PDRIVE: 4088 case CISS_LSTATUS_MISSING_PDRIVE: 4089 case CISS_LSTATUS_BECOMING_READY: 4090 default: 4091 return(CISS_LD_OFFLINE); 4092 } 4093 } 4094 4095 4096 /************************************************************************ 4097 * Return a name for a logical drive's organisation. 4098 */ 4099 static const char * 4100 ciss_name_ldrive_org(int org) 4101 { 4102 switch(org) { 4103 case CISS_LDRIVE_RAID0: 4104 return("RAID 0"); 4105 case CISS_LDRIVE_RAID1: 4106 return("RAID 1"); 4107 case CISS_LDRIVE_RAID4: 4108 return("RAID 4"); 4109 case CISS_LDRIVE_RAID5: 4110 return("RAID 5"); 4111 case CISS_LDRIVE_RAID51: 4112 return("RAID 5+1"); 4113 case CISS_LDRIVE_RAIDADG: 4114 return("RAID ADG"); 4115 } 4116 return("unkown"); 4117 } 4118 4119 /************************************************************************ 4120 * Return a name for a command status value. 4121 */ 4122 static const char * 4123 ciss_name_command_status(int status) 4124 { 4125 switch(status) { 4126 case CISS_CMD_STATUS_SUCCESS: 4127 return("success"); 4128 case CISS_CMD_STATUS_TARGET_STATUS: 4129 return("target status"); 4130 case CISS_CMD_STATUS_DATA_UNDERRUN: 4131 return("data underrun"); 4132 case CISS_CMD_STATUS_DATA_OVERRUN: 4133 return("data overrun"); 4134 case CISS_CMD_STATUS_INVALID_COMMAND: 4135 return("invalid command"); 4136 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4137 return("protocol error"); 4138 case CISS_CMD_STATUS_HARDWARE_ERROR: 4139 return("hardware error"); 4140 case CISS_CMD_STATUS_CONNECTION_LOST: 4141 return("connection lost"); 4142 case CISS_CMD_STATUS_ABORTED: 4143 return("aborted"); 4144 case CISS_CMD_STATUS_ABORT_FAILED: 4145 return("abort failed"); 4146 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4147 return("unsolicited abort"); 4148 case CISS_CMD_STATUS_TIMEOUT: 4149 return("timeout"); 4150 case CISS_CMD_STATUS_UNABORTABLE: 4151 return("unabortable"); 4152 } 4153 return("unknown status"); 4154 } 4155 4156 /************************************************************************ 4157 * Handle an open on the control device. 4158 */ 4159 static int 4160 ciss_open(struct cdev *dev, int flags, int fmt, d_thread_t *p) 4161 { 4162 struct ciss_softc *sc; 4163 4164 debug_called(1); 4165 4166 sc = (struct ciss_softc *)dev->si_drv1; 4167 4168 /* we might want to veto if someone already has us open */ 4169 4170 mtx_lock(&sc->ciss_mtx); 4171 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4172 mtx_unlock(&sc->ciss_mtx); 4173 return(0); 4174 } 4175 4176 /************************************************************************ 4177 * Handle the last close on the control device. 4178 */ 4179 static int 4180 ciss_close(struct cdev *dev, int flags, int fmt, d_thread_t *p) 4181 { 4182 struct ciss_softc *sc; 4183 4184 debug_called(1); 4185 4186 sc = (struct ciss_softc *)dev->si_drv1; 4187 4188 mtx_lock(&sc->ciss_mtx); 4189 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4190 mtx_unlock(&sc->ciss_mtx); 4191 return (0); 4192 } 4193 4194 /******************************************************************************** 4195 * Handle adapter-specific control operations. 4196 * 4197 * Note that the API here is compatible with the Linux driver, in order to 4198 * simplify the porting of Compaq's userland tools. 4199 */ 4200 static int 4201 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 4202 { 4203 struct ciss_softc *sc; 4204 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4205 #ifdef __amd64__ 4206 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4207 IOCTL_Command_struct ioc_swab; 4208 #endif 4209 int error; 4210 4211 debug_called(1); 4212 4213 sc = (struct ciss_softc *)dev->si_drv1; 4214 error = 0; 4215 mtx_lock(&sc->ciss_mtx); 4216 4217 switch(cmd) { 4218 case CCISS_GETPCIINFO: 4219 { 4220 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4221 4222 pis->bus = pci_get_bus(sc->ciss_dev); 4223 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4224 pis->board_id = pci_get_devid(sc->ciss_dev); 4225 4226 break; 4227 } 4228 4229 case CCISS_GETINTINFO: 4230 { 4231 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4232 4233 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4234 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4235 4236 break; 4237 } 4238 4239 case CCISS_SETINTINFO: 4240 { 4241 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4242 4243 if ((cis->delay == 0) && (cis->count == 0)) { 4244 error = EINVAL; 4245 break; 4246 } 4247 4248 /* 4249 * XXX apparently this is only safe if the controller is idle, 4250 * we should suspend it before doing this. 4251 */ 4252 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4253 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4254 4255 if (ciss_update_config(sc)) 4256 error = EIO; 4257 4258 /* XXX resume the controller here */ 4259 break; 4260 } 4261 4262 case CCISS_GETNODENAME: 4263 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4264 sizeof(NodeName_type)); 4265 break; 4266 4267 case CCISS_SETNODENAME: 4268 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4269 sizeof(NodeName_type)); 4270 if (ciss_update_config(sc)) 4271 error = EIO; 4272 break; 4273 4274 case CCISS_GETHEARTBEAT: 4275 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4276 break; 4277 4278 case CCISS_GETBUSTYPES: 4279 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4280 break; 4281 4282 case CCISS_GETFIRMVER: 4283 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4284 sizeof(FirmwareVer_type)); 4285 break; 4286 4287 case CCISS_GETDRIVERVER: 4288 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4289 break; 4290 4291 case CCISS_REVALIDVOLS: 4292 /* 4293 * This is a bit ugly; to do it "right" we really need 4294 * to find any disks that have changed, kick CAM off them, 4295 * then rescan only these disks. It'd be nice if they 4296 * a) told us which disk(s) they were going to play with, 4297 * and b) which ones had arrived. 8( 4298 */ 4299 break; 4300 4301 #ifdef __amd64__ 4302 case CCISS_PASSTHRU32: 4303 ioc_swab.LUN_info = ioc32->LUN_info; 4304 ioc_swab.Request = ioc32->Request; 4305 ioc_swab.error_info = ioc32->error_info; 4306 ioc_swab.buf_size = ioc32->buf_size; 4307 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4308 ioc = &ioc_swab; 4309 /* FALLTHROUGH */ 4310 #endif 4311 4312 case CCISS_PASSTHRU: 4313 error = ciss_user_command(sc, ioc); 4314 break; 4315 4316 default: 4317 debug(0, "unknown ioctl 0x%lx", cmd); 4318 4319 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4320 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4321 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4322 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4323 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4324 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4325 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4326 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4327 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4328 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4329 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4330 4331 error = ENOIOCTL; 4332 break; 4333 } 4334 4335 mtx_unlock(&sc->ciss_mtx); 4336 return(error); 4337 } 4338